阅读说明：本技术 用于跑步机的制动和锁定系统 (Braking and locking system for a treadmill ) 是由 乔凡尼·拉乌尔·菲马 于 2020-02-14 设计创作，主要内容包括：一种用于跑步机的系统,所述跑步机包括围绕前轴和后轴旋转的踏面以及在所述踏面的相对侧上的侧轨,所述系统包括：制动器,所述制动器被配置成使所述前轴或所述后轴中的至少一个的旋转变慢；控制器；以及第一存在传感器,所述第一存在传感器与所述控制器通信,所述第一存在传感器定位在侧轨上并且被配置成检测所述侧轨上的所述使用者。在所述跑步机的操作期间,当所述踏面正在移动并且所述第一存在传感器未检测到所述侧轨上的所述使用者时,所述制动器未接合。所述控制器被配置成响应于所述第一存在传感器随后检测到所述侧轨上的所述使用者而接合所述制动器。(A system for a treadmill, the treadmill including a tread that rotates about a front axle and a rear axle and side rails on opposite sides of the tread, the system comprising: a brake configured to slow rotation of at least one of the front axle or the rear axle; a controller; and a first presence sensor in communication with the controller, the first presence sensor positioned on a side rail and configured to detect the user on the side rail. During operation of the treadmill, the brake is not engaged when the tread is moving and the first presence sensor does not detect the user on the side rail. The controller is configured to engage the brake in response to the first presence sensor subsequently detecting the user on the side rail.)

1. A system for a treadmill, the treadmill including a tread that rotates about a front axle and a rear axle and side rails on opposite sides of the tread, the system comprising:

a brake configured to slow rotation of at least one of the front axle or the rear axle;

a locking mechanism associated with one or both of the front and rear axles and having a locked configuration in which the locking mechanism prevents rotation of the one or both of the front or rear axles and an unlocked configuration in which rotation of the one or both of the front and rear axles is permitted;

a controller;

a first presence sensor in communication with the controller and positioned on the treadmill, the first presence sensor configured to detect a user above the tread surface; and

a second presence sensor in communication with the controller, the second presence sensor positioned on a side rail and configured to detect the user on the side rail,

wherein during operation of the treadmill when the first presence sensor detects the user above the tread surface and the second presence sensor does not detect the user on the side rail, the brake is not engaged and the locking mechanism is in the unlocked configuration, the controller configured to:

engaging the brake in response to the second presence sensor detecting the user on the side rail while the first presence sensor continues to detect the user above the tread surface;

moving the locking mechanism to the locked configuration in response to the first presence sensor subsequently detecting that the user is not over the tread surface and the second presence sensor detecting that the user is not on the side rail; and is

Releasing the brake in response to the second presence sensor subsequently detecting the user not being on the side rail while the first presence sensor continues to detect the user above the tread surface.

2. The system of claim 1, further comprising:

a tread surface sensor in communication with the controller and configured to detect a speed of the tread surface, wherein the controller causes the locking mechanism to move to the locked configuration when the controller also receives a signal from the tread surface sensor indicating that the speed of the tread surface is at or below a threshold speed.

3. The system of claim 1, wherein the second presence sensor is a weight sensor positioned below each side rail and configured to detect a load indicating that a user is standing on both of the side rails, each weight sensor in communication with the controller, wherein controller is configured to, when the tread surface is moving:

the brake is engaged when a signal is received from each weight sensor indicating that a load is detected.

4. The system of claim 1, wherein the first presence sensor is an infrared sensor or a non-contact temperature sensor.

5. The system of claim 1, wherein the tread comprises a plurality of slats, each slat having opposite ends attached to a respective belt, the system further comprising:

a slat engagement mechanism positioned on one of the front axle or the rear axle and configured to engage at least one slat when the locking mechanism is in the locked position.

6. The system of claim 5, wherein the slat engaging mechanism is a toothed sprocket.

7. The system of claim 5, wherein the slat engaging mechanism is part of the brake.

8. The system of claim 1, wherein the brake comprises:

a brake member;

a brake member receiver attached to the at least one of the front axle or the rear axle; and

an actuator, wherein the actuator is in communication with the controller, and wherein the actuator is configured to move the brake member relative to the brake member receiver to engage the brake in response to receiving a signal from the controller to engage the brake.

9. The system of claim 8, wherein the brake member is configured to apply a magnetic force to the brake member receiver to reduce a rotational speed of the brake member receiver.

10. The system of claim 8, wherein the brake member receiver comprises:

a coupling disposed about the at least one of the front axle or the rear axle; and

a flange extending from the coupling, wherein the flange comprises a magnetic material.

11. The system of claim 1, wherein the treadmill includes a display positioned on the treadmill, in communication with the controller, and configured to receive input from a user, wherein the controller is configured to, while the tread is moving:

engaging the brake in response to receiving a signal from the display, wherein the signal is generated by the user.

12. A system for a treadmill, the treadmill including a tread that rotates about a front axle and a rear axle and side rails on opposite sides of the tread, the system comprising:

a brake configured to slow rotation of at least one of the front axle or the rear axle;

a controller; and

a first presence sensor in communication with the controller, the first presence sensor positioned on a side rail and configured to detect a user on the side rail,

wherein the brake is not engaged when the tread is moving and the first presence sensor does not detect the user on the side rail during operation of the treadmill, the controller configured to:

engaging the detent in response to the first presence sensor subsequently detecting the user on the side rail.

13. The system of claim 12, wherein the controller is further configured to:

releasing the brake after the brake has been engaged in response to the first presence sensor subsequently detecting that the user is not on the side rail and the tread has stopped.

14. The system of claim 12, further comprising:

a tread surface sensor in communication with the controller and configured to detect a speed of the tread surface, wherein the controller is further configured to operate the brake based on the speed detected by the tread surface sensor.

15. The system of claim 14, wherein the controller is further configured to:

receiving an input selecting a maximum speed of the tread surface; and is

Engaging the brake when the tread surface sensor detects that the tread surface has reached the maximum speed.

16. The system of claim 14, wherein the controller is further configured to:

receiving input of a desired tread speed as the tread moves; and is

Controlling the speed of the tread surface based on the tread surface sensor according to the input.

17. A system for a manual treadmill including a tread that rotates about a front axle and a rear axle and side rails on opposite sides of the tread, the system comprising:

a controller;

a brake configured to slow a rotational speed of at least one of the front axle and the rear axle in response to a signal from the controller;

a presence sensor configured to detect a user on the manual treadmill; and

a locking mechanism configured to prevent rotation of at least one of the front axle and the rear axle when the presence sensor detects that the user is not on the manual treadmill when engaged.

18. The system of claim 17, wherein the controller is configured to:

engaging the brake when the presence sensor detects that the user is not on the treadmill; and is

Engaging the locking mechanism when the controller detects a tread speed that is a threshold speed or lower.

19. The system of claim 17, further comprising:

a slat engagement mechanism configured to engage the tread to prevent movement of the tread when the locking mechanism is engaged.

20. The system of claim 19, wherein the tread includes slats, each slat having opposite ends attached to a respective belt, and wherein the slat engaging mechanism includes a sprocket with teeth, at least one tooth engaging a slat to resist movement of the tread.

Technical Field

The present disclosure relates to exercise equipment including motorized treadmills and manual treadmills and improvements thereof.

Background

Exercise treadmills allow a person to walk, jog, run, or sprint on a stationary machine having a moving tread. The treadmill tread may include a continuous belt or slat belt. Once the user of the treadmill has walked down on the tread, the treads of both motorized treadmills that use motors to move the tread and manual treadmills that rely on the user to move the tread continue to move. Once the user continues to operate the treadmill, the moving tread can make it difficult for the user to continue using the treadmill. In addition, other individuals near the moving tread may step on the tread without realizing that the tread is moving. Motorized treadmills and manual treadmills also allow an unauthorized user (such as a child or animal) to step on the tread during or after use by the authorized user. In addition, motorized treadmills and manual treadmills do not provide warning to individuals in the vicinity that the tread is moving.

Motorized treadmills and manual treadmills also often display information to a user using a display screen. Such displays may be ineffective means of communicating information to the user of the treadmill or to the viewer of the user while the user is operating the treadmill.

Disclosure of Invention

One aspect of the present disclosure is a system for a treadmill including a tread that rotates about a front axle and a rear axle and side rails on opposite sides of the tread. The system comprises: a brake configured to slow rotation of at least one of a front axle or a rear axle; and a locking mechanism associated with one or both of the front and rear axles and having a locked configuration in which the locking mechanism prevents rotation of one or both of the front or rear axles and an unlocked configuration in which rotation of one or both of the front and rear axles is permitted. The system further comprises: a controller; a first presence sensor in communication with the controller and positioned on the treadmill, the first presence sensor configured to detect a user above the tread; and a second presence sensor in communication with the controller, the second presence sensor positioned on the side rail and configured to detect a user on the side rail. During operation of the treadmill, when the first presence sensor detects a user above the tread and the second presence sensor does not detect a user on the side rail, the brake is disengaged and the locking mechanism is in the unlocked configuration. The controller is configured to: engaging the brake in response to the second presence sensor detecting a user on the side rail while the first presence sensor continues to detect a user above the tread; moving the locking mechanism to the locked configuration in response to the first presence sensor subsequently detecting that the user is not over the tread and the second presence sensor detecting that the user is not on the side rail; and releasing the brake in response to the second presence sensor subsequently detecting that the user is not on the side rail while the first presence sensor continues to detect a user above the tread.

The system may also include a tread surface sensor in communication with the controller and configured to detect a speed of the tread surface, wherein the controller causes the locking mechanism to move to the locked configuration when the controller also receives a signal from the tread surface sensor indicating that the speed of the tread surface is at or below a threshold speed.

The second presence sensor may be a weight sensor positioned below each side rail and configured to detect a load indicating that a user is standing on both side rails, each weight sensor in communication with the controller. The controller may be configured to engage the brake when a signal is received from each weight sensor indicating that a load is detected while the tread is moving.

The first presence sensor may be an infrared sensor or a non-contact temperature sensor.

The tread may include a plurality of slats, each slat having opposite ends attached to a respective belt. The system may also include a slat engaging mechanism positioned on one of the front or rear axles and configured to engage at least one slat when the locking mechanism is in the locked position. The slat engaging mechanism may be a sprocket with teeth. The slat engaging mechanism may be part of the brake.

The brake may include: a brake member; a brake member receiver attached to at least one of the front axle or the rear axle; and an actuator, wherein the actuator is in communication with a controller, and wherein the actuator is configured to move the brake member relative to the brake member receiver to engage the brake in response to receiving a signal from the controller to engage the brake. The brake member may be configured to apply a magnetic force to the brake member receiver to reduce a rotational speed of the brake member receiver. The brake member receiver may include: a coupling disposed about at least one of the front axle or the rear axle; and a flange extending from the coupling, wherein the flange comprises a magnetic material.

The treadmill can include a display positioned on the treadmill, in communication with the controller, and configured to receive input from a user. The controller may be configured to engage the brake in response to receiving a signal from the display while the tread is moving, wherein the signal is generated by a user.

Another aspect of the present disclosure is a system for a treadmill including a tread that rotates about a front axle and a rear axle and side rails on opposite sides of the tread, the system comprising: a brake configured to slow rotation of at least one of a front axle or a rear axle; a controller; and a first presence sensor in communication with the controller, the first presence sensor positioned on the side rail and configured to detect a user on the side rail. During operation of the treadmill, the brake is not engaged when the tread is moving and the first presence sensor does not detect a user on the side rail. The controller is configured to engage the detent in response to the first presence sensor subsequently detecting a user on the side rail.

The controller may also be configured to release the brake after the brake has been engaged in response to the first presence sensor subsequently detecting that the user is not on the side rail and the tread has stopped.

The system may also include a tread surface sensor in communication with the controller and configured to detect a speed of the tread surface. The controller may also be configured to operate the brake based on the speed detected by the tread surface sensor. The controller may be configured to receive an input selecting a maximum speed of the tread surface and engage the brake when the tread surface sensor detects that the tread surface has reached the maximum speed. The controller may be configured to receive input of a desired tread surface speed as the tread surface moves and to control the speed of the tread surface based on the input based on the tread surface sensor.

Another aspect of the present disclosure is a system for a manual treadmill including a tread that rotates about a front axle and a rear axle and side rails on opposite sides of the tread, the system comprising: a controller; a brake configured to slow a rotational speed of at least one of a front axle and a rear axle in response to a signal from the controller; a presence sensor configured to detect a user on a manual treadmill; and a locking mechanism configured to prevent rotation of at least one of the front axle and the rear axle when the presence sensor detects that the user is not on the manual treadmill when engaged.

The controller may be configured to engage the brake when the presence sensor detects that the user is not on the treadmill and engage the locking mechanism when the controller detects a tread speed that is a threshold speed or lower.

The system may also include a slat engagement mechanism configured to engage the tread to prevent movement of the tread when the locking mechanism is engaged. The tread may include slats, each having opposite ends attached to a respective belt. The slat engaging mechanism may include a sprocket with teeth, at least one of which engages the slat to resist movement of the tread.

Drawings

The disclosure is best understood from the following detailed description when read with the accompanying drawing figures. It is emphasized that, according to common practice, the various features of the drawings are not to scale. On the contrary, the dimensions of the various features are arbitrarily expanded or reduced for clarity.

FIG. 1 is a top perspective view of a treadmill.

FIG. 2 is a top perspective view of a weight measurement or presence detection system of the treadmill.

FIG. 3 is an illustration of the internal components of the treadmill.

Fig. 4 is a side view of an embodiment of a lock.

FIG. 5A is a flow diagram of an embodiment of a user initiated system and process.

Fig. 5B is a flow diagram of another embodiment of a user initiated system and process.

FIG. 6 is a flow chart of a process of engaging the lock when the lock has been released and the treadmill is in use.

Fig. 7 is a side view of an embodiment of a brake.

FIG. 8 is a flow chart of a process for operating the brakes as the tread of the treadmill moves.

FIG. 9 is a top perspective view of a lamp configured to emit light through a first lens.

FIG. 10 is a side view of a slat of the tread.

Fig. 11 is a top perspective view of a power rail.

Fig. 12 is a partial rear view of a slat including a contactor contacting a power rail according to one embodiment.

Fig. 13 is a side view of a treadmill according to another embodiment.

FIG. 14 is a top perspective view of a brake member receiver and a locking member receiver according to one embodiment.

Fig. 15 is a top perspective view of a brake member receiver and a locking member receiver according to another embodiment.

Fig. 16 is a top view of a brake according to one embodiment.

Fig. 17 is a side view of a brake according to another embodiment.

Fig. 18 is a top view of the magnet member and brake member receiver of fig. 15.

FIG. 19 is a flowchart of a process for operating the braking system while the user is operating the treadmill of FIG. 13.

FIG. 20 is a flow chart of another process for operating the braking system while the user is operating the treadmill.

FIG. 21 is a flow chart of a process for operating the brake system to set the maximum speed.

Detailed Description

Devices, systems, and methods for improving the operation of motorized and non-motorized treadmills are described herein. A locking system is described that may be configured to stop rotation of a treadmill tread after a user of the treadmill steps off the treadmill. The locking system may prevent operation of the treadmill until the system determines that the next user is an authorized user. A braking system is described that may be configured to slow the rotation of the tread as a user steps down the tread and onto the side rails of the treadmill. The braking system may allow the tread to rotate freely when the system determines that the user has retracted onto the tread. Treadmill lighting systems are also described. The lighting system may alert an individual near the treadmill that the treadmill is operating. The lighting system may also convey information to the user and the observer of the user, including but not limited to the user's performance or biometric data.

Fig. 1 is a top perspective view of a treadmill 100. The treadmill 100 may include a tread 102, side skirts 104, side rails 106, support members 108, handrails 110, and a display 112. Treadmill 100 may also include one or more sensors, including but not limited to: infrared sensors, weight sensors, heart rate sensors, proximity sensors, or any other user detection or biometric sensor. In the non-limiting example shown, as shown in fig. 1, the treadmill 100 includes a presence sensor 116, a weight sensor 118, and a proximity sensor 120.

The tread 102 is the moving surface traversed by a user operating the treadmill 100 and may include a continuous or segmented belt. In the non-limiting example shown, as shown in FIG. 1, tread 102 includes a plurality of slats. The longitudinal ends of each slat may be attached to respective belts that rotate on fixed bearings (e.g., free-wheeling roller bearings) about the front and rear axles. The slats may be configured to have a space between adjacent slats. In other embodiments, the tread 102 may comprise a continuous rubber band. The tread 102 may be actuated by a motor (motorized treadmill) or may be moved by the force of a user (manual treadmill, also known as non-motorized treadmill). The tread 102 may be supported by a sub-frame (e.g., a rigid metal frame, not shown in fig. 1) such that the tread 102 may include a flat, curved, inclined, or declined shape or orientation. Tread 102 may include any other shape or orientation.

One or more side skirts 104 may be supported by the bottom frame on opposite sides of the tread 102. Each side skirt 104 may include side rails 106 located on an upper surface of the side skirt 104. The side rails 106 may be integral with the side skirt 104 or may be separately located on the side skirt 104. The side rails 106 provide a surface for a user to safely stand on the treadmill 100. For example, a user may stand on the side rail 106 to step on or off the tread 102, or to step on or off the treadmill 100 entirely, while the tread 102 is moving or at rest. The side rails 106 may extend along any length and width of the side skirt 104. Each of the side rails 106 may include a foot pad 122 that specifies one or more portions of the side rail 106 on which a user may stand. The foot pad 122 may be integral with the side rail 106 or may be separately located on the side rail 106. The foot pad 122 may be illuminated by lights located above, around, and/or below the foot pad 122 to indicate where the user is standing on the side rail 106. For example, the outline of the foot may be illuminated from below the side rail 106 using an opaque or transparent plastic material through which an underlying mounted lamp emits light. The foot pad 122 may be illuminated by a light in response to the proximity sensor 120, the presence sensor 116, or an input on the display 112 detecting a user.

The support member 108 may comprise a strut or any other structural member. One end of the support member 108 may be coupled to the bottom frame and/or the side skirt 104, and the other end may be coupled to the armrest 110. The support members 108 provide structural support for the armrests 110 and may be coupled to any portion of the bottom frame and/or the side skirt 104 (e.g., in the middle of the treadmill 100, at either end of the treadmill 100, or at any position therebetween). Any number of support members 108 may be used. The frame 202 may support other components of the treadmill 100, including but not limited to the axle, the side skirt 104, the side rail 106, the support member 108, and/or the handrail 110. The frame 202 may be made of any metal or any other material, and may include one or more structural members.

The armrest 110 is coupled to the support member 108 and provides support to the user while the user is operating the treadmill 100. For example, the user may grasp the armrest 110 to step on or off the tread 102, or to step on or off the treadmill 100 entirely. The armrest 110 supports the display 112, either alone or in combination with other support members. The display 112 may include any screen (e.g., a touch screen) located on the armrest 110. The display 112 may include a non-contact skin temperature sensor 113 that may be configured to measure the temperature of the user while the user is present on the treadmill without the sensor being in contact with the user. Display 112 may display information to a user, including but not limited to: user heart rate, temperature, calories burned by the user, or any other biometric data; distance traveled, distance remaining, exercise duration, exercise time remaining, tread speed, user running pace, or any other user performance information; and/or data associated with another treadmill user.

The treadmill 100 may include one or more systems to improve the functionality of the treadmill 100 and enhance the user's experience. The treadmill 100 may include a locking system configured to prevent rotation of the tread 102 when the treadmill 100 is not in use and to stop rotation of the tread 102 in response to a user stepping off the treadmill 100. The treadmill 100 may additionally include a braking system configured to slow the rotation of the tread 102 when the treadmill 100 is operating but there is no user on the tread 102. These systems may operate in response to receiving signals from the weight sensor 118 and the presence sensor 116.

One or more weight sensors 118 may be positioned such that weight and/or presence is detected while a user is standing on the foot pad 122 and/or the side rail 106. The weight sensor 118 may include a strain gauge, a load sensor, or any sensor configured to detect the weight and/or presence of a user. As used herein, a "weight sensor" is any sensor that detects when a load is placed thereon. To actually measure the weight, two weight sensors (such as strain gauges) may be positioned under each foot pad 122 between the underlying frames and connected using the bracket 200 shown in fig. 2. The bracket 200 may be positioned below the foot pad 122 and tread 102 to evenly distribute the weight of the user to the weight sensors 118 while standing on the foot pad 122.

In the non-limiting example shown, the bracket 200 has two opposing flanges 204 that cover the strain gauges, as shown in fig. 2. A plate 206 extends between the flanges 204 to connect the flanges 204. In the non-limiting example shown, the bracket 200 is U-shaped. The flange 204 may be integral with the plate 206. For example, the stent 200 may comprise a one-piece, pre-formed plastic or metal stent. The bracket 200 may also include any configuration and/or orientation relative to the frame 202.

The weight sensor 118 may measure the weight of the user in response to the user covering the foot pad 122 on the upper bracket 200. In some embodiments, in response to a user's request to measure the user's weight (e.g., using display 112), foot pads 122 may be illuminated by a light to indicate that the user is standing on foot pads 122. The user's weight may also be automatically measured in response to the weight sensor 118 detecting the user's presence on the foot pads 122. The user's weight may be displayed by display 112.

Additionally and/or alternatively, the weight sensors 118 may detect the presence of a user on the foot pads 122 and/or the side rails 106. Additional weight sensors 118 may be positioned along the length of each side rail 106 below the side rail 106 to detect presence. In response to the weight sensor 118 detecting the presence of a user on the foot pad 122 and/or the side rail 106, the treadmill 100 may be enabled by a controller (described later with respect to fig. 3). The treadmill 100 may also be deactivated by the controller in response to the weight sensor 118 detecting that no user is present on the foot pad 122 and/or the side rail 106.

One or more of the presence sensors 116 may be located on any portion of the support member 108, the armrest 110, or the display 112. The presence sensors 116 may include infrared sensors, ultrasonic sensors, LED linear light sensors, or any other sensors configured to detect the presence of a user on the treadmill 100 (e.g., standing between the support members 108, standing on the tread 102, side rails 106, and/or foot pads 122). The presence sensor 116 is positioned so that the presence of a person near, but not on, the treadmill 100 will be detected. The presence sensor 116 and the weight sensor 118 may operate together to detect the presence of a user on any portion of the treadmill 100.

In one example, the user activation system and method includes a weight sensor 118, a presence sensor 116, and a lock 316 (described later with respect to fig. 3) below the foot pad 122 and the side rail 106. The user activation method includes the user approaching the treadmill 100 with the intent of using the treadmill 100 not currently in use. If electrically powered, the power supply will be turned off. To support use of the treadmill 100, a user steps on the foot pads 122 or the side rails 106 to activate the weight sensors 118 that detect the presence of the user. Additionally, the presence sensor 116 detects that the user is on an area of the treadmill 100 where the desired use can be inferred. The non-contact temperature sensor 113 may also be used as the presence sensor 116 because detecting a temperature equal to the temperature of a person would indicate that the user is present in the area of the treadmill where use can be initiated. The combination of the presence detected by both the weight sensor 118 and the presence sensor 116 may initiate the unlocking of a lock 316 that prevents the tread 102 from rotating in any direction when in the locked position. Additionally, the user activation system and method may require the user to enter a code prior to unlocking the lock 316, as will be described in more detail below. If a person or animal is on the treadmill 100 for reasons other than use, the user activates the system and method to prevent the tread 102 from moving.

FIG. 3 is an illustration of the internal components of the treadmill 100, including the lock and braking system. In the non-limiting example shown, the frame 202 includes two side members that support the side skirt 104 and a plurality of cross members that extend between the side members. The support members 108 are coupled to the side members of the frame 202. The bracket 200 extends between two side members of the frame 202. The weight sensor 118 is positioned on a side member of the frame 202 below the flange 204 of the bracket 200. Additional weight sensors 118 are positioned on the side members of the frame 202 below the side skirts 104. The treadmill 100 may include any number of weight sensors.

The treadmill 100 may include a front axle 300 and a rear axle 302. The front axle 300 and the rear axle 302 may be coupled to the frame 202 and may rotate relative to the frame 202 via bearings 312. Bearings 312 may allow for bi-directional or uni-directional rotation of front shaft 300 and rear shaft 302. Unidirectional rotation allows the tread 102 to rotate in only one direction and prohibits the tread 102 from moving "backwards" in the opposite direction.

The front axle 300 and the rear axle 302 may include a front axle drum 304 and a rear axle drum 306, respectively. The front and rear axle drums 304, 306 may be fixed to the front and rear axles 300, 302, respectively, such that the front and rear axle drums 304, 306 rotate with the front and rear axles. The front axle drum 304 and the rear axle drum 306 may enlarge the diameter of the front axle 300 and the rear axle 302, respectively. The tread 102 may extend around the front axle drum 304 and the rear axle drum 306 such that rotation of the front axle drum 304 and/or the rear axle drum 306 results in rotation of the tread 102. In embodiments where the treadmill 100 is motorized, when activated, an electric motor (not shown) may be coupled to and may rotate the front axle 300, the rear axle 302, the front axle drum 304, and/or the rear axle drum 306. The electric motor may be coupled to the front axle 300, the rear axle 302, the front axle drum 304, or the rear axle drum 306 via a belt or any other known means. For example, a belt may be attached to the tread on either side of the tread, the belt rotating about a wheel 338 turned by the axle/drum. The electric motor may be coupled directly to the frame 202, or may be coupled to the frame 202 via a bracket or any other intermediate component.

In embodiments where the treadmill 100 is non-motorized, the treadmill 100 may include a generator 308. The generator 308 may convert the rotation of the front axle 300, rear axle 302, front axle drum 304, and/or rear axle drum 306 into electrical energy that is stored in the battery 310. The generator 308 may include a dc generator, a magneto, or any other device configured to convert the rotation of a shaft or shaft drum into energy for powering the battery 310. The generator 308 may be coupled to the front shaft 300, the rear shaft 302, the front shaft drum 304, or the rear shaft drum 306 via a belt or any other known means. The generator 308 may be coupled directly to the frame 202, or may be coupled to the frame 202 via a bracket or any other intermediate component.

The battery 310 may comprise an 12/24VDC battery, but may also comprise one or more batteries of any type operating at any voltage. The battery 310 may be coupled directly to the frame 202, or may be coupled to the frame 202 via a bracket or any other intermediate component. In other embodiments, the battery 310 may not be coupled to the frame 202. The battery 310 may be external to the treadmill 100 (e.g., the battery 310 may be located near the treadmill 100 or in a space defined by the treadmill 100 below the treadmill 100). The battery 310 may include a charging port to receive power from an external power source. If the charge of the battery 310 is depleted, the charging port may be used. The battery 310 may power any of the electrical components described herein, including but not limited to any lights, sensors, displays, or controllers. Additionally and/or alternatively, the treadmill 100 may include a power cord configured to electrically connect to an external power source (e.g., an electrical outlet). The power received by the power cord may be used to power the described electrical components.

The treadmill 100 may include a controller 314. The controller 314 may receive data from the presence sensor 116, the weight sensor 118, the proximity sensor 120, and/or any other sensor. The controller 314 may also be in electrical communication with any of the other described electrical components, including but not limited to the display 112, the generator 308, and the battery 310. The controller 314 may be coupled to any portion of the frame 202, but may also be coupled to any portion of the treadmill 100. The controller 314 may be coupled to the frame 202 via a bracket or any other intermediate component, or may be coupled directly to the frame 202 or a surface of the battery 310 (e.g., a top surface of the battery 310).

The lock 316 is configured to automatically stop rotation of the tread 102 in any direction when a user is not present on the treadmill 100 (e.g., not present on the tread 102 or the side rail 106). Once the lock 316 is engaged, such as when a user steps down the treadmill, the lock 316 may prevent the tread 102 from rotating in any direction until the user's presence is again identified with the weight sensor, the infrared sensor, and in some embodiments the entry of an identification code.

The lock 316 may include a locking member 318, a locking member receiver 320, an actuator 322, and an actuator bracket 324. In the non-limiting example shown, as shown in fig. 3, the locking member receiver 320 is coupled to the rear axle drum 306 and rotates with the rear axle drum 306. The locking member receiver 320 may be coupled to the rear axle drum 306 using keys, screws, nuts, bolts, rivets, welding, or any other attachment means. In other embodiments, the locking member receiver 320 may be coupled to the front axle 300, the front axle drum 304, or the rear axle 302. The locking member receiver 320 is configured to receive the locking member 318. The locking member receiver 320 may include a cam or any other device capable of engaging the locking member 318 to inhibit rotation of the front axle 300, the rear axle 302, the front axle drum 304, and/or the rear axle drum 306 in any direction.

The actuator 322 is configured to move the locking member 318 between the locked position and the unlocked position. The actuator 322 may include any type of spring, motor, solenoid, electric cylinder with an integrally formed motor, or any other device capable of moving the locking member 318 to engage the locking member receiver 320. The actuator 322 is coupled to the actuator bracket 324 using any of the described attachment means. The actuator bracket 324 is coupled to the frame 202 using any of the described attachment means. In other embodiments, the actuator 322 may be coupled directly to any portion of the frame 202.

The actuator 322 is configured to move the locking member 318 to engage the locking member receiver 320. The locking member 318 may include any bolt, rod, plate, piston, or any other device configured to engage the locking member receiver 320 to inhibit rotation of the front axle 300, rear axle 302, front axle drum 304, and/or rear axle drum 306 in any direction.

To move the locking member 318 to the locked position, the actuator 322 moves the locking member 318 toward the locking member receiver 320 until the locking member 318 engages the locking member receiver 320. In the locked position, contact between the locking member 318 and the locking member receiver 320 inhibits rotation of the locking member receiver 320 and the rear axle drum 306 in any direction. Stopping rotation of the axle drum 306 results in stopping rotation of the tread 102. In the unlocked position, the locking member 318 does not contact the locking member receiver 320 and the rear axle drum 306 are allowed to rotate freely. A plurality of locks 316 may be used to stop rotation of the front axle 300, the rear axle 302, the front axle drum 304, or the rear axle drum 306. The lock 316 may be used in embodiments where the treadmill 100 is powered or unpowered.

Fig. 4 is a side view of an embodiment of a lock 400 that may be used as the lock 316 and may include features similar to those of the lock 316 unless otherwise described. The actuator bracket 402 includes a first plate 404 and a second plate 406. The first plate 404 may be disposed on one side of any portion of the frame 202, while the second plate 406 may be disposed on an opposite side of that portion of the frame 202. Nuts and screws are used to couple the first plate 404 and the second plate 406, but any other described attachment means may be used. Although the actuator bracket 402 is not limited to the structure shown in fig. 4, any intermediate component of any shape and size that couples the actuator to the frame 202 may be included.

The lock 400 includes a toothed cam 408 coupled to the rear axle drum 306 such that the toothed cam 408 rotates with the rear axle drum 306. The toothed cam 408 is coupled to the rear axle drum 306 using a key 409. Toothed cam 408 may comprise two halves coupled via flange 412 and a fastener such as a nut and bolt. The toothed cam 408 may include side walls on opposite sides of the toothed cam 408. Toothed cam 408 is shown as having four teeth, but may include any number of teeth. The teeth of the toothed cam 408 may have any shape. In other embodiments, any type of cam having any shape may be used. The lock 400 includes a solenoid 414 (e.g., a two-state solenoid) that is coupled to the first plate 404 of the actuator bracket 402 using screws, bolts, or any other described attachment means. The solenoid 414 may include features similar to those of the actuator 322, unless otherwise described. In other embodiments, any other actuator may be used. The lock 400 includes a bolt 416 coupled to a solenoid 414. Unless otherwise described, the bolt 416 may include features similar to those of the locking member 318.

The solenoid 414 is configured to move the bolt 416 between the locked and unlocked positions. To move the bolt 416 to the locked position (shown in phantom), the solenoid 414 moves the bolt 416 toward the toothed cam 408 until the bolt 416 engages the teeth of the toothed cam 408. The engagement between the bolt 416 and the teeth of the toothed cam 408 stops the toothed cam 408 from rotating in either direction. Stopping the rotation of the toothed cam 408 stops the rotation of the rear axle drum 306, which stops the rotation of the tread 102. To move the bolt 416 to the unlocked position, the solenoid 414 is configured to move the bolt away from the toothed cam 408 until the bolt 416 does not contact the toothed cam 408, thereby allowing the toothed cam 408 to rotate freely. In embodiments where the solenoid 414 is a two-state solenoid, once the solenoid 414 is energized by the battery 310 to move the bolt 416 to the locked position, the bolt 416 remains in the locked position until the solenoid 414 is energized again. In such embodiments, the bolt 416 may remain in the locked position even if power is not supplied to the solenoid 414 or any other component of the treadmill 100. Similarly, once the solenoid 414 is energized by the battery 310 to move the bolt 416 to the unlocked position, the bolt 416 remains in the unlocked position until the solenoid 414 is energized again.

The lock 316 (or lock 400) may be in electrical communication with the controller 314 and may operate in conjunction with the weight sensor 118 and presence sensor 116 as a user-initiated system and method, as described below. When not in use, the treadmill 100 will be locked, i.e., the lock 316 will be in a locked position. For example, if during operation of the treadmill 100, the controller 314 determines that the user is not present on the tread 102 and not present on the side rail 106, the controller 314 is configured to engage the lock 316 as previously described to prevent movement of the tread 102 in any direction. The engagement of the lock 316 may be momentary, i.e., once both sensors 118, 116 fail to detect a user. The engagement of the lock 316 may occur after a period of time. In embodiments where the treadmill 100 is motorized, the controller 314 may disconnect (e.g., electrically disconnect) power to an electric motor (not shown) prior to engaging the lock 316. In embodiments where the treadmill 100 is non-powered, the battery powers the actuator to engage the lock 316. Prior to engaging the lock 316 or in response to engaging the lock 316, the display 112 may generate a notification indicating to the user that the lock 316 is to be engaged and/or has been engaged.

Once the controller 314 has engaged the lock 316, the lock 316 remains engaged until the controller 314 determines that one or more activation criteria have been met. The enablement criteria can include one or more combinations: the presence of the user on the foot pads 122 is detected by the weight sensors 118; the presence of a user on the two side rails 106 is detected by the weight sensors 118; detecting the presence of a user on any portion of the side rail 106 via the weight sensor 118; a user is detected by the presence sensor 116; determining, by the controller 314, that the weight of the user detected by the weight sensor 118 meets or exceeds a threshold weight; and/or an identification code entered by an authorized user (e.g., using display 112).

In embodiments where the enablement criteria includes authorization of the identification code, the controller 314 may verify the identification code by: in response to receiving the user's identification code, the identification code is compared to a list of authorized codes stored locally on the treadmill 100 (e.g., in a memory included in the controller 314) or remotely on a server device in communication with the treadmill 100 (e.g., in communication with the controller 314). In response to determining that the identification code entered by the user matches one of the authorized codes, the controller 314 may release the lock 316. The identification code prevents an unauthorized user from using the treadmill 100. In some embodiments, no identification code is required. Additionally and/or alternatively, the treadmill 100 may use biometric information (e.g., fingerprint data, voice data, or facial recognition data) detected by any sensor located on the treadmill 100 to verify the identity of the user.

Fig. 5A is a flow chart of an embodiment of a user initiated system and process 500 that initiates use of the treadmill 100 with the lock 316 in the engaged position. It is contemplated that one or both of the weight sensor or the presence sensor may detect a user on the treadmill and turn on the display. The display may direct the user to stand on the foot pad 122 to unlock the tread. In operation 502, the controller 314 receives a signal from the weight sensor 118 indicating that the presence of a user on the foot pad 122 is detected. In operation 504, the controller 314 determines whether the weight of the user meets or exceeds a threshold weight in response to the weight sensor 118 detecting the presence of the user. The threshold weight may be programmed into the controller or may be set by the owner or operator. As one example, the weight threshold reduces the chance that a child who should not use the treadmill will be able to unlock the treadmill. In optional operation 506, the controller 314 receives the identification code and determines whether the identification code is an authorized code. It is contemplated that the display may present a prompt to the user to enter his or her identification code before the user stands on the foot pad 122 or once the user stands on the foot pad 122.

In operation 508, the controller 314 initiates release of the lock 316 in response to determining that the user is present on the footpad 122 and is equal to or exceeds the threshold weight and optionally enters an appropriate identification code, thereby freeing the user to use the treadmill 100. The release is powered by the battery of the non-motorized treadmill, and for motorized treadmills, by the motor. For example, referring to lock 400 shown in fig. 4, controller 314 may activate solenoid 414 to move bolt 416 away from toothed cam 408 to the locked position. At operation 508, the controller 314 may also initiate the activation of any other electronic components of the treadmill 100, including but not limited to any display, lights, motors, or controllers. The activation system will no longer be required until the lock is in its locked position.

Fig. 5B is a flow chart of another embodiment of a user initiated system and process 520 that initiates use of the treadmill 100 with the lock 316 in the engaged position. It is contemplated that one or both of the weight sensor or the presence sensor may detect a user on the treadmill and turn on the display. For safety, the display may guide the user to stand on the side rails. In operation 522, the controller 314 receives a signal from the at least one weight sensor 118 on the at least one side rail indicating that the presence of a user is detected. Alternatively, the system may require the controller 314 to receive a signal from at least one weight sensor 118 on each side rail that indicates the presence of the user, i.e., the user is riding on the tread. In operation 524, the controller 314 receives a signal from the presence sensor 116 indicating that a user is detected in the region of the tread and/or side rail, suggestive of an intent to use the treadmill. In operation 526, the controller 314 receives the identification code and determines whether the identification code is an authorized code. It is contemplated that the display may present a prompt to the user to enter his or her identification code before the user stands on the foot pad 122 or once the user stands on the foot pad 122.

In operation 528, the controller 314 initiates release of the lock 316 in response to determining that the user is present on the treadmill and has entered the appropriate identification code, thereby freeing the user to use the treadmill 100.

Fig. 6 is a flow chart of a process 600 of engaging the lock 316 when the lock has been released and the treadmill is in use. In operation 602, the controller 314 does not receive any signal from any of the weight sensors 118 associated with the foot pad 122 and the side rail 106. In operation 604, the controller 314 does not receive any signals from any presence sensors 116. In operation 606, the controller 314 determines that no user is present on the treadmill 100 in response to the absence of signals from any weight sensors 118 and any presence sensors 116.

In embodiments where the treadmill 100 is a motorized treadmill, the process 600 may include an operation 608. In operation 608, the controller 314 disconnects the electric motor from power in response to determining that no user is present on the treadmill 100. The controller 314 may initiate engagement of the lock 316 in response to determining that no user is present on the treadmill 100 and in response to disconnecting power to the electric motor. In embodiments where the treadmill 100 is a non-motorized treadmill, the process 600 proceeds from operation 606 to operation 610. In operation 610, the controller 314 may initiate engagement of the lock 316 in response to determining that no user is present on the treadmill 100. After expiration of the threshold time period, the controller 314 may initiate engagement of the lock 316. In one example, the controller 314 may initiate engagement of the lock 316 in response to determining that no user is present on the treadmill 100 and determining that a threshold time period has expired. In response to determining that no user is present on the treadmill 100, the threshold time period begins. The threshold time period may vary and may be set by the user of the treadmill or may be predetermined. The lock 316 remains engaged until the aforementioned actuation process is completed. The controller 314 may disable the display 112 and/or other electronic components of the treadmill 100 in response to determining that no user is present on the tread 102 and no user is present on the side rail 106.

Referring back to fig. 3, treadmill 100 may include brakes 326. The brake 326 is configured to slow the rotation of the tread 102 in response to the user stepping down on the tread 102 and up the side rail 106 (e.g., while the user is at rest). By slowing the rotation of the tread 102 rather than stopping completely while the user is resting on the side rail 106, the user can back onto the tread 102 and continue to use the treadmill more easily. Additionally and/or alternatively, the brake 326 may stop the rotation of the tread 102 for a period of time if the user stands on the side rail 106 for an extended period of time.

As non-limiting examples, during use of the treadmill 100, a user may step on the side rail 106 and step down the tread 102 to drink something, receive a phone call, talk with a person present, or rest. When the user steps on the side rail 106 while the tread 102 is moving, the brake 326 engages to slow the tread 102 so that when the user is ready to back on the tread 102, the tread 102 moves at a lower, more manageable pace than when the user is walking down. If treadmill 100 is a motorized treadmill, power to the electric motor will be temporarily disconnected when brake 326 is applied. The brake 326 may be applied until the user retracts onto the tread 102, i.e., no weight sensor 118 on the side rail 106 detects the user's weight. The user will then raise the tread 102 to the desired rotational speed under the user's own power (if the treadmill 100 is unpowered) or by using the tread speed control on the display 112 (if the treadmill 100 is powered). If the user remains off the tread 102 and resting on the footpad 122 for a period of time, the brake 326 may be released when a threshold time or speed is reached, allowing the tread 102 to slow down further under its own momentum. Alternatively, the brake 326 may be applied until the early stage when the tread 102 stops or the user backs up on the tread 102.

The brake 326 may include a brake actuator 328, a brake actuator bracket 330, a brake member 332, and a brake member receiver 334. In the non-limiting example shown, the brake member receiver 334 is coupled to the front axle drum 304 and rotates therewith. The brake member receiver 334 includes a channel 336 having an inner profile that corresponds to the outer profile of the brake member 332. The brake member receiver 334 may be coupled to the front axle drum 304 using keys, screws, nuts, bolts, rivets, welding, or any other attachment means. In other embodiments, the brake member receiver 334 may be coupled to the front axle 300, the rear axle 302, or the rear axle drum 306. The brake member receiver 334 is configured to receive the brake member 332. The brake member receiver 334 may include a ring coupling or any other device configured to receive the brake member 332 to slow rotation of the front axle 300, the rear axle 302, the front axle drum 304, and/or the rear axle drum 306. A plurality of brakes 326 may be used to slow the rotation of the front axle 300, rear axle 302, or rear axle drum 306. The brake 326 may be used in embodiments where the treadmill 100 is powered or unpowered.

The brake actuator 328 is configured to move the brake member 332 between a braking position and a non-braking position. The brake actuator 328 may include any type of spring, motor, solenoid, electric cylinder with an integrally formed motor, or any other device capable of moving the brake member 332 to engage the brake member receiver 334. The brake actuator 328 is coupled to the brake actuator bracket 330 using any of the described attachment means. The brake actuator bracket is coupled to the frame 202 using any of the described attachment means. In other embodiments, the brake actuator 328 may be coupled directly to any portion of the frame 202.

The brake actuator 328 is configured to move the brake member 332 to engage the brake member receiver 334. Brake member 332 may include brake pads, calipers, or any other device configured to engage brake member receiver 334 to slow rotation of front axle 300, rear axle 302, front axle drum 304, and/or rear axle drum 306.

To move the brake member 332 to the braking position, the brake actuator 328 moves the brake member 332 toward the brake member receiver 334 until the brake member 332 engages the brake member receiver 334. In the braking position, friction between the brake member 332 and the brake member receiver 334 reduces the rotational speed of the front axle drum 304. In the non-braking position, the brake member 332 does not engage the brake member receiver 334 and the front axle drum 304 is allowed to rotate freely. The reduction in the rotational speed of the front axle drum 304 results in a reduction in the rotational speed of the tread 102. In some embodiments, the brake member receiver 334 is not required, and the brake member 332 directly engages the front axle 300, the rear axle 302, the front axle drum 304, and/or the rear axle drum 306.

Fig. 7 is a side view of an embodiment of a brake 700 that may be used as brake 326 and may include features similar to those of brake 326 unless otherwise described. In the non-limiting example shown, the brake 700 includes a brake actuator bracket 702 that includes a first plate 704 and a second plate 706. The first plate 704 may be disposed on one side of any portion of the frame 202, while the second plate 706 may be disposed on an opposite side of that portion of the frame 202. Nuts and screws are used to couple the first plate 704 and the second plate 706, but any other described attachment means may be used. Although the brake actuator bracket 702 is not limited to the structure shown in fig. 7, any intermediate component of any shape and size that couples the brake actuator to the frame 202 may be included.

The brake 700 includes a solenoid 708 (e.g., a two-state solenoid) that is coupled to the first plate 704 of the brake actuator bracket 702 using screws, bolts, or any other described attachment means. Unless otherwise described, solenoid 708 is an example of a brake actuator 328. Brake 700 includes a brake member 710 having a bolt 712, a brake pad retainer 714, and a brake pad 716. The brake member 710 may include features similar to those of the brake member 332, unless otherwise described. Bolt 712 is coupled to brake pad retainer 714. Brake pad retainer 714 may be integral with bolt 712 or may be separately coupled to bolt 712. The brake pad retainer 714 includes a curved shape. A brake pad 716 having a curved shape is coupled to brake pad retainer 714. Brake pad 716 may be made of ceramic or any other suitable material. In other embodiments, brake 700 may not include brake member 710, but may include any device configured to engage a brake member receiver.

The brake 700 includes an annular coupling 718 that extends around the front axle drum 304. Unless otherwise described, the ring coupling 718 may include features similar to those of the brake member receiver 334. The ring coupling 718 may include two halves coupled via a flange 720 and fasteners such as nuts and bolts. The ring coupling 718 is coupled to the front axle drum 304 using keys 722. Annular coupling 718 defines a channel 724 having an inner profile shaped to correspond to an outer profile of brake pad 716. In other embodiments, the brake 700 may not include the annular coupling 718, but may include any device configured to receive a braking member (e.g., bolt 712) to slow the axle or axle drum of the treadmill 100.

The solenoid 708 is powered by the battery 310 for the non-motorized treadmill and moves the braking member 710 between the braking and non-braking positions. In the braking position, brake pad 716 contacts the inner surface of channel 724 and friction between brake pad 716 and annular coupling 718 slows rotation of front axle drum 304. In the non-braking position of the braking member 710, the brake pads 716 do not contact the annular coupling 718 and allow the front axle drum 304 to rotate freely. In embodiments where the solenoid 708 is a two-state solenoid, once the solenoid 708 is energized by the battery 310 to move the braking member 710 to the braking position, the braking member 710 remains in the braking position until the solenoid 708 is energized again. Similarly, once the solenoid 708 is energized by the battery 310 to move the braking member 710 to the non-braking position, the braking member 710 remains in the braking position until the solenoid 708 is energized again.

The brake actuator 328 may be in electrical communication with the controller 314 and may operate in conjunction with the weight sensor 118 and the presence sensor 116, as described below. Presence sensors 116 located on the support members 108 and/or on the armrest 110 are configured to detect the presence of a user on the treadmill 100 (e.g., a user standing on any portion of the tread 102 or side rail 106). The weight sensor 118, which is located below the side rail 106, is configured to detect whether a user is present on any portion of the side rail 106 and/or foot pad 122. In response to the controller 314 determining that a user is present on the tread 102 and that a user is not present on either of the side rails 106, the brake 326 remains released, allowing the tread 102 to rotate freely.

If, during operation of the treadmill 100, the controller 314 determines that a user is present on both side rails 106 (e.g., simultaneously) and that a user is not present on the tread 102 (e.g., the user has stepped down on the tread 102 and stepped up on one or both of the side rails 106), the controller 314 may engage the brake 326 to slow the rotation of the tread 102 as previously described. Optionally, controller 314 may be configured to apply brakes 326 only when the user is standing on both foot pads 122 (which indicates a desire to apply the brakes). The display may indicate to the user during use: stepping on the foot pad 122 will apply the brakes during the rest period. In response to engaging brake 326, display 112 may generate a notification indicating to the user that brake 326 is engaged. The brake 326 may slow the rotation of the tread surface 102 to a threshold speed, which may be predetermined or may be set by the user. In response to the controller 314 determining that the tread 102 is rotating at the threshold speed, the controller 314 may fully or partially release the brake. After the brake 326 has been engaged, and in response to the controller 314 determining that the user is present on the tread 102 and not present on the side rail 106 (e.g., the user has stepped down the side rail 106 and returned to the tread 102), the controller may release the brake 326, allowing the tread 102 to rotate freely. In embodiments where treadmill 100 is motorized, controller 314 may disconnect (e.g., electrically disconnect) power to the electric motor prior to engaging brake 326 and reconnect power when brake 326 is released.

FIG. 8 is a flow chart of a process 800 for operating brake 326 while tread 102 is moving. At operation 802, the controller 314 receives a signal from the weight sensor 118 indicating the presence of a user on both side rails 106, such as a user riding on the tread 102. At operation 804, the controller 314 receives a signal from the presence sensor 116 indicating the presence of a user in the area of the treadmill 100 indicating use. In operation 806, the controller 314 determines that the user is "resting" and that the brake 326 should be activated. In embodiments where the treadmill 100 is a motorized treadmill, the process 800 may include operation 808. In operation 808, the controller 314 disconnects the electric motor from power in response to determining that a user is present on the two side rails 106. In embodiments where the treadmill 100 is a non-motorized treadmill, the process 800 proceeds from operation 806 to operation 810.

At operation 810, controller 314 initiates engagement of brake 326. For example, referring to brake 700 shown in fig. 7, controller 314 may initiate movement of brake member 710 such that brake pad 716 contacts annular coupling 718. In some embodiments, the controller 314 may initiate engagement of the detents 326 in response to determining that a user is present on any portion of each side rail. In other embodiments, the controller 314 may initiate engagement of the brake 326 in response to the presence of a user on the footpad 122. Additionally and/or alternatively, the controller 314 may activate engagement of the brake 326 in response to the tread 102 reaching a maximum speed. The maximum speed may be set by the user or may be predetermined.

At operation 812, the controller 314 receives a signal from the weight sensor 118 indicating that a user is not present on any of the side rails 106 (e.g., the controller detects that no signal is received from any weight sensor 118 on any of the side rails 106). At operation 814, the controller receives a signal from the presence sensor (i.e., a signal to continue receiving the presence of the user) indicating the presence of the user in the area of the treadmill 100 to indicate use. At operation 816, the controller determines that the user is returning to the tread 102 to use the treadmill 100. At operation 818, the controller 314 initiates release of the brake 326 in response to determining that a user is present on the tread surface 102. For example, referring to brake 700 shown in fig. 7, controller 314 may activate brake member 710 to move such that brake pad 716 does not contact annular coupling 718.

Treadmill 100 may include lights and lighting systems configured to provide information to the user and/or others (e.g., to alert others in the vicinity that treadmill 100 is operating).

Referring back to fig. 1, one or more of the proximity sensors 120 may be located on one or more of the side skirts 104. For example, one or more proximity sensors 120 may be located on the side surfaces of the side skirt 104 such that the proximity sensors 120 are spaced around the periphery of the treadmill 100. Additionally and/or alternatively, the proximity sensor may be located on any other portion of the treadmill 100, including but not limited to the support member 108 or the armrest 110. The proximity sensor 120 may include one or more infrared sensors, ultrasonic sensors, LED linear light sensors, or any other sensor configured to detect the presence of a person, animal, or object approaching the treadmill 100. For example, the proximity sensor 120 may be configured to detect the presence of anyone within a predetermined radius (e.g., 20 inches to 48 inches) of the proximity sensor 120. The controller 314 may receive a signal from the proximity sensor 120 indicating that a user or another person is detected approaching the treadmill 100.

By way of non-limiting example, when the controller 314 receives a signal from at least one of the proximity sensors 120 and the treadmill is not in use, the controller may activate the display upon receiving the signal and the display may provide user activated steps regarding using the treadmill. When the controller 314 receives a signal from at least one of the proximity sensors 120 and the treadmill 100 is in use, the display may alert the user that the treadmill is being approached.

The treadmill 100 may include peripheral lights 124 configured to illuminate an area on the floor around the treadmill 100, for example, to alert an approaching person that the treadmill 100 in use is approaching (i.e., the tread 102 is moving). The peripheral lights 124 may be located on or below the side skirt 104, side rail 106, or armrest periphery 110, and may include LED lights, lasers, projectors, or any other light source. The peripheral lights 124 may be any color and may be illuminated according to any predetermined or user-customized setting (e.g., blinking). The peripheral lights 124 may also change color according to any predetermined or user-customized setting. The lights 124 may project any symbol, word, pattern, or image onto the surrounding area in any configuration or orientation. By way of non-limiting example, the perimeter lights 124 may form a light wall 126 on the floor around the treadmill 100 to alert an approaching person that the treadmill 100 is in use. The light wall may be spaced apart from the treadmill 100, such as from 10012 inches to 24 inches from the treadmill, and may partially or completely surround the treadmill 100. The peripheral lights 124 may be, for example, yellow or red, and are typically used to indicate reminders, such as to make a way or stop.

The peripheral lights 124 may operate in conjunction with the controller 314 and other components of the treadmill 100, as described below. In response to the controller 314 determining that a subject is present within a predetermined radius of the treadmill 100 in use (e.g., in response to the proximity sensor 120 detecting the presence of an approaching person), the controller 314 may activate the peripheral lights 124 to illuminate the area around the treadmill. In response to the proximity sensor 120 detecting that a person is approaching the treadmill 100 (e.g., approaching from the side or from the back of the treadmill 100), the display 112 may generate a notification for the user to indicate to the user the presence and location of the approaching person relative to the treadmill 100.

Controller 314 may activate peripheral light 124 to illuminate the area around the treadmill and/or may change the color of peripheral light 124 in response to engagement of brake 326 or in response to engagement of lock 316. For example, the peripheral light 124 may not be enabled when the lock 316 is engaged.

One or more projectors 114 may be located on any portion of treadmill 100, including but not limited to handrail 110 (e.g., inside handrail 110), support member 108, and/or any portion of side skirt 104. The projector 114 may be configured to project an image onto a projection area 115. The projected area 115 may include any area near the treadmill (e.g., floor, wall, or ceiling). The image may include any previously described biometric data and/or performance data associated with the user or another treadmill user. For example, the projector 114 may project biometric data or user performance data on a floor near the treadmill 100 for viewing by a referee during a game. Additionally and/or alternatively, the projector 114 may project advertising or marketing information, such as a company logo. Projector 114 may project data onto any surface or surfaces in the vicinity of treadmill 100 in response to commands issued by a user. In response to determining that a user is present near treadmill 100, controller 314 may enable projector 114.

Treadmill 100 may include a lighting system configured to emit light through the tread. The lighting system may alert the user and other individuals that the treadmill 100 is in an operating state, may alert individuals in the vicinity of the treadmill 100 not to approach the treadmill 100, and may convey biometric information or performance information to the user or observer (such as a referee in a game).

As shown in fig. 1, the tread 102 may be formed from a plurality of slats. The slats are configured to form a surface on which a user can exercise and are positioned next to adjacent slats to simulate a continuous belt, with little space between adjacent slats. The lighting system includes a light positioned under a slat on which a user stands. The light is located in a cavity defined at the top and bottom by the tread 102 rotating on the front axle 300 and the rear axle 302. The tread surface is the surface facing away from the cavity and includes the surface on which the user exercises. The lock 316, brake 326, front axle 300, rear axle 302, front axle drum 304, and rear axle drum 306 may be located in the cavity.

The lights may be configured to emit light away from the cavity along any length of the tread 102 and through one or more spaces between the slats. The lights may comprise LEDs, neon lights, or any other type of light, and may be included in a light strip or cord. The lamp may also include one or more integrated circuits.

The lighting system may also include a controller 314 or any other controller configured to control the lamps. The lights may be in communication (e.g., wired or wireless) with the controller 314 or any other controller. The lights may operate in conjunction with the controller 314 and other components of the treadmill 100. The controller 314 may control the activation, deactivation, color, brightness, and/or frequency of the light. The controller 314 may be configured to control at least one of the color, brightness, or frequency of illumination of the light in response to receiving a signal from the biometric sensor shown in fig. 1. The biometric sensor may include one or more of a non-contact skin temperature sensor 113, a heart rate sensor, a weight sensor 118, or any other sensor configured to detect biometric information associated with a user. The biometric sensor may be located on any portion of the treadmill 100. The controller 314 may also be configured to control at least one of the color, brightness, or frequency of illumination of the lights in response to calculating the user's biometric information based on signals received from the biometric sensor, including but not limited to calories burned or body mass index. The biometric sensor may detect biometric information data associated with the user in response to a request from the user. Additionally and/or alternatively, the biometric sensor may detect biometric information associated with the user in response to the weight sensor 118 detecting the presence of the user on the foot pad 122 and/or the side rail 106.

Controller 314 may control at least one of the color, brightness, or frequency of illumination of the lights based on user-associated performance data including, but not limited to, distance traveled, distance remaining, exercise duration, exercise time remaining, tread speed, user running pace, or any other user performance information; and/or data associated with another treadmill user.

The controller 314 may also activate the lights in response to receiving a signal from the proximity sensor 120 indicating that a user or another individual is present near the treadmill 100. For example, when the treadmill is not in use, the proximity sensor 120 may detect that a person is approaching the treadmill 100 and send a signal to the controller 314 to activate the light. Lights may be activated to invite an approaching person to use the treadmill 100, such as using certain colors or flashing lights. As another example, when the treadmill 100 is in use, the proximity sensor 120 may detect that a person is approaching the treadmill 100 and send a signal to the controller 314 to flash an already enabled light or change the color of the light (such as yellow or red) to alert the approaching person that the tread 102 is moving. The controller 314 may flash and/or change the color of lights located on an area of the treadmill 100 based on the location of the person approaching the treadmill 100 as detected by the proximity sensor. For example, if the proximity sensor 120 detects that a person is approaching the rear of the treadmill, the controller 314 may flash and/or change the color of lights located on an area of the treadmill 100.

The lights may include one or more sets of lights configured to illuminate different portions of the treadmill 100. For example, the lighting system may include a first set of lights configured to be controlled by the controller 314 to illuminate the front 128 (shown in fig. 1) of the treadmill. The front of the treadmill 100 is associated with a position where the slats are proximate the front axle 300 and pivot about the front axle 300. The lighting system may include a second set of lights configured to be controlled by the controller 314 to illuminate the rear portion 130 (shown in fig. 1) of the treadmill, where the rear portion 130 is opposite the front portion 128. Rear portion 130 is associated with a position where the slats are proximate to rear axle 302 and rotate about rear axle 302. The lighting system may also include a third set of lights configured to illuminate a middle portion 130 (shown in fig. 1) of the treadmill, where the middle portion 132 extends between the front portion 128 and the rear portion 130. The front, rear and middle portions of the treadmill may be illuminated separately by lights in any combination of any color, brightness or frequency of illumination. For example, the controller 314 may be configured to illuminate the front and rear of the treadmill 100 with a first color (e.g., yellow) and the middle with a second color (e.g., green). By illuminating the front and rear of the treadmill 100 with a color typically associated with a warning (such as yellow, orange, or red), the lighting system can warn individuals near the treadmill 100 to be careful when near the treadmill 100.

The lighting system may include a light located in the cavity that remains stationary relative to the tread 102. Fig. 9 is a top perspective view of a lamp 900 configured to emit light through a first lens 902. The lamp 900 may include features similar to those of the previously described lamps. The first lens 902 may include a transparent or translucent member configured to receive light from the lamp 900 and emit light through the tread 102 (not shown in fig. 9). The first lens 902 may be made of any plastic (such as acrylic), glass, or any other material configured to refract light emitted by the lamp 900. The first lens 902 may have a curved shape and may extend around a portion of the circumference of the front axle 300, the rear axle 302, the front axle drum 304, or the rear axle drum 306. For example, the first lens 902 shown in fig. 9 comprises a plastic sheet having a curved shape such that the first lens 902 may be attached to the treadmill 100 around a portion of the circumference of the front axle drum 304. The first lens 902 may be located upstream of the front axle 300 or front axle drum 304 with respect to the movement of the tread 102. In this position, the first lens 902 may illuminate the front of the treadmill when the light 900 is activated. The first lens 902 may include ribs 904 extending along the length of the first lens 902 to structurally stiffen the first lens 902.

A second lens (not shown) having similar features to those of the first lens 902 may include a curved shape and may extend around a portion of the circumference of the rear axle 302 or rear axle drum 306 so that the rear of the treadmill 100 may be illuminated. The second lens may be located in a cavity downstream of the rear axle 302 or rear axle drum 306 relative to the movement of the tread 102. A second set of lamps (not shown) having similar features to those of lamp 900 may be attached to the second lens.

The light 900 may be positioned and/or configured in the cavity such that the light 900 shines through the first lens 902 to illuminate a portion of the tread 102. For example, a light may be positioned on an edge of first lens 902 such that light emitted by light 900 is refracted by first lens 902 and transmitted through the spaces between adjacent slats of tread 102. In the non-limiting example shown, the lamp 900 is located on the housing 906. The housing 906 is attached to the edge of the first lens 902 so that the lamp 900 emits light through the first lens 902. In other embodiments, the housing 906 may be attached to any portion of the first lens 902. The housing 906 may include: a bracket configured to attach to the first lens 902; a transparent flexible tube in which the lamp 900 is located; an elongate strip; or any other device configured to attach the lamp 900 to the first lens 902. In other embodiments, the lamp 900 may be directly attached to the first lens 902. In other embodiments, the lamp 900 may not be connected to the first lens 902 and may be positioned near the first lens 902 such that the lamp 900 emits light through the first lens 902. The first lens 902 may include: an aperture 908 to attach the first lens 902 to the frame 202; a lens holder; or any intermediate component or any other component of the treadmill 100.

The lighting system may include lights located on the slats forming the tread 102 such that the lights rotate with the tread 102 about the front and rear axles 300, 302. FIG. 10 is a side view of slat 1200. The slat 1200 may include a tread surface 1202 on which a user exercises. Slat 1200 may also include an underside 1204 that includes any surface of slat 1200 that is not tread surface 1202, including any side surface. One or more lights 1206 may be attached to the underside 1204 of the slats such that the lights 1206 emit light through the spaces between adjacent slats forming the tread 102. The lamp 1206 may include features similar to features of any of the lamps previously described. In the non-limiting example shown, a series of lights 1206 are attached to each of the front and rear surfaces of the underside 1204 of the slat 1200. In other embodiments, the series of lights 1206 may be attached to only one of the front or back surfaces of the underside 1204. Light 1206 may be attached to underside 1204 of slat 1200 using a housing as previously described. For example, a light cord or light bar may be attached to the front edge of the underside of each slat 1200.

Lights 1206 attached to each slat 1200 may be controlled by a controller. The controller may include controller 314 or any other controller. The controller 314 may be configured to control the activation, deactivation, color, brightness, and/or frequency of illumination of the light 1206. Alternatively, each slat 1200 may include a light controller attached to the underside 1204 of slat 1200. Each lamp controller may be configured to control the lamps 1206 of each respective slat in the same manner as the controller 314. Each lamp controller may be in communication with the controller 314.

The controller 314 may be configured to control activation, deactivation, color, brightness, and/or frequency of illumination of lights 1206 attached to the slats 1200 in response to determining the position of the slats 1200 relative to the treadmill. For example, in response to determining that the slat 1200 is located in the front or rear of the treadmill 100, the controller 314 may control the light 1206 to emit light in a first color (e.g., yellow). In response to determining that the slat 1200 is located in the center of the treadmill 100, the controller 314 may also control the light 1206 to emit light in a second color (e.g., green).

To power the lights attached to the slat 1200, the slat 1200 may include a contact 1208 attached to the underside 1204 and in electrical communication with the light 1206. The contact 1208 may be attached to the underside 1204 within a recess defined by the underside 1204. The contacts 1208 may receive power from a power rail (described further with respect to fig. 11) that extends along the length of the treadmill 100 and is located in the cavity 1000. The power received by the contactor 1208 may be supplied to the lamp 1206. As the slat 1200 rotates about the front and rear axles, the contactor 1208 receives power from the power rail that remains stationary relative to the tread 102 in response to contacting the power rail. The contactors 1208 may include motor brushes (e.g., carbon brushes) or any other components configured to receive power from a power rail and supply power to the lamps 1206. The strip 1200 may include a plurality of contacts 1208, including a contact for conducting positive charge and a contact for conducting negative charge. The slats 1200 may include contacts 1208 located at opposite longitudinal ends of the slats 1200.

Fig. 11 is a top perspective view of power rail 1300. The power rail 1300 may include an elongated member configured to supply power to the contacts 1208 in response to contacting the contacts 1208 as a slat (e.g., the slat 1200) rotates about the front and rear axes. The power rail 1300 may receive power from the battery 310, a power cord, an electric motor, or any other power source. The power rail 1300 may be shaped to receive the contacts 1208 as the contacts 1208 and the slats 1200 rotate about the front and rear axes. For example, the power rail 1300 may include one or more channels configured to receive the contactors 1208.

The power rail 1300 may include one or more strips 1302 of conductive material (e.g., copper) attached to an insulator member 1304. The strip of conductive material 1302 supplies power to the contacts 1208 while the strip of conductive material 1302 is in contact with the contacts 1208. The insulator member 1304 may be made of any insulating material (e.g., rubber or plastic) and may electrically insulate the strip of conductive material 1302 from other components of the treadmill 100. The insulator member 1304 can include a wall 1306 configured to electrically insulate the strips of conductive material 1302 from one another (e.g., to separate the positive contact and the negative ground). Each of the strips of conductive material 1302 can receive one of the contacts 1208. For example, one strip of conductive material 1302 can receive a first contact while another strip of conductive material 1302 can receive a second contact. The insulator member 1304 may be connected to the bearing support 1008, any portion of the frame 202, or any other component of the treadmill 100 such that the contacts 1208 may contact the strip of conductive material 1302 as the slat 1200 rotates about the front and rear axes.

As slats 1200 rotate about the front and rear axes, a contactor 1208 attached to an underside 1204 of a slat 1200 contacts power rail 1300 and supplies power to lights 1206 attached to the respective slats 1200. When energized, the lights 1206 shine through the spaces between adjacent slats to illuminate portions of the treadmill 100. In some embodiments, each slat 1200 includes a contact 1208. The contact 1208 of each slat may be configured to supply power to the light 1206 connected to the underside of each respective slat 1200 in response to contacting the power rail 1300. In such embodiments, when the slats 1200 are rotated such that the contactors 1208 no longer contact the power rails 1300, the lights 1206 attached to the slats 1200 are not powered and do not illuminate. Thus, the power rail 1300 may be located within the cavity 1000 where illumination of the treadmill 100 is desired. For example, the power rail 1300 may be positioned near the top of the cavity 1000 such that when the slats 1200 are rotated about the front and rear axes, the power rail 1300 powers a light 1206 attached to the slat 1200 currently located in the center of the treadmill 100. In another example, portions of the power rail 1300 may extend around the front and rear axles of the treadmill 100. In this configuration, the power rail 1300 may provide power to lights 1206 attached to the slats 1200 to illuminate the front, rear, and/or middle of the treadmill 100 as the slats 1200 rotate about the front and rear axes.

In other embodiments, only some of the slats forming the tread 102 may include the contacts 1208. In such embodiments, the strip including the contact 1208 may be electrically connected to the strip that does not include the contact 1208 using one or more conductors 1210 (shown in fig. 10). The conductor 1210 may be in electrical communication with the contactor 1208. The conductors 1210 may include a jumper or any other electrical connector. The conductor 1210 supplies power from the contact 1208 in contact with the power rail 1300 to the lamp 1206 attached to the strip 1200 that does not include the contact 1208. In other words, a light 1206 connected to a strip other than the strip including the contact 1208 may receive power from the conductor 1210 in response to the contact 1208 contacting the power rail 1300. In this configuration, the number of slats 1200 that include the contacts 1208 may be reduced. For example, if the tread 102 includes 64 slats connected in series, one of each 32 slats in the series may include a contactor 1208, such that one contactor 1208 is always in contact with the power rail 1300 as the tread 102 rotates about the front and rear axles. In this example, a light 1206 attached to 62 slats that do not include a contactor 1208 may be powered by a conductor 1210. The contacts 1208 and conductors 1210 may provide power to the lights 1206 attached to each slat 1200 to illuminate the front, rear, and middle of the treadmill 100.

Fig. 12 is a partial rear view of a slat 1200 including a contactor 1208 contacting a power rail 1300, according to one embodiment. In the non-limiting example shown, two contacts 1208 are attached to the underside 1204 of the slat 1200. One end of each contact 1208 contacts the strip 1302 of conductive material of the power rail 1300. The opposite end of each contact 1208 includes an actuator 1400 (e.g., a spring) configured to maintain contact between the contact 1208 and the strip of conductive material 1302. The strip 1302 of conductive material is connected to an insulator member 1304. The walls 1306 separate the strips 1302 of conductive material from each other and insulate them. Insulator member 1304 is connected to bearing support 1402. Bearing support 1402 may support bearings (not shown) configured to support belt 1404 for rotation about front and rear axes. One end of the slat 1200 is connected to a belt 1404. Another belt (not shown) may be connected to slat 1200 at an opposite end of slat 1200. Bearing support 1402 is connected to frame 202. A conductor 1210 is connected to the underside 1204 of the strip 1200 in the recess 1406.

Treadmill 100 may include a combination of fixed lighting in cavity 1000 and lights 1206 attached to underside 1204 of slat 1200. As previously described, the lighting system may include a first set of lights configured to illuminate the front of the treadmill 100 and a second set of lights configured to illuminate the rear of the treadmill 100. Any of the first and second sets of lights may comprise any combination of the embodiments of the lighting system described with respect to fig. 9-12. For example, the first set of lights may include a first lens 902 extending around the front axle drum 304 and a light 900 attached to the lens 902, as previously described. For example, the second set of lights may include a second lens extending around the rear hub 306 and lights attached to the second lens, as previously described. The power rails 1300 may extend along the length of the middle portion of the treadmill 100 such that the lights 1206 are powered to illuminate only when they rotate through the middle portion of the treadmill 100 along the top of the cavity 1000. In this configuration, no power is supplied to the lights 1206 as the slats 1200 are rotated through the front and rear of the treadmill. In other embodiments, power rail 1300 may also be positioned such that light 1206 is powered only when slat 1200 is rotated through the front and/or rear of the treadmill. Alternatively, the light 1206 may be controlled by the controller 314 to illuminate in response to the controller 314 determining that the light 1206 is located in the middle of the treadmill 100.

The lighting systems described herein may be used in many different ways, some of which are described herein. For example, a light may be turned on when a proximity sensor detects that a person is approaching the treadmill 100. The lights may be controlled to flash as a reminder to the approaching person. The light may be turned on and changed to a color such as green, inviting the approaching person to use the treadmill 100. The lighting system may be used while the treadmill is operating. The light may be used while the tread is rotating to alert others around the treadmill that the tread is moving. The light may be used to change color in response to the user's temperature as measured by the non-contact temperature sensor. The light may be used to indicate the speed of the tread. The light may be used to indicate a safe area on the tread on which the user stays while exercising.

Fig. 13 is a side view of a treadmill 1500 according to another embodiment. The treadmill 1500 includes features similar to those of the treadmill 100 unless otherwise described. Treadmill 1500 is a manual treadmill including a front axle 1502 having features similar to those of front axle 300, a rear axle 1504 having features similar to those of rear axle 302, and a frame 1506 having features similar to those of frame 202, unless otherwise described. Two wheels 1508 are attached to one end of frame 1506 near front axle 1502. Two floor supports 1510 are attached to opposite ends of the frame 1506. Floor support 1510 is configured to contact the floor surrounding treadmill 1500 to prevent frame 1506 from moving relative to the floor. Handle 1512 is attached to frame 1506 proximate rear shaft 1504. The user can use the handle 1512 to lift one end of the treadmill 1500 to move the treadmill 1500 using the wheels 1508. In other embodiments, the treadmill 1500 may include more or less than two wheels 1508 and a floor support 1510. In other embodiments, treadmill 1500 may not include wheels 1508, floor support 1510, or handle 1512. In other embodiments, the wheels 1508, floor support 1510, and handle 1512 may be attached to any portion of the treadmill 1500 (e.g., proximate to the front axle 1502 or rear axle 1504).

Treadmill 1500 includes a wireless charging system 1520 that includes a battery 1522, a power transmitter 1526, and a power receiver 1528 having similar features as battery 310, each in communication with a controller 1524 having similar features as controller 314. The battery 1522, controller 1524, and power receiver 1528 are supported by a support member 1518. In other embodiments, battery 1522, controller 1524, and power receiver 1528 may be attached to any other portion of treadmill 1500, such as support members 1514, 1516, collectively or individually.

The power transmitter 1526 is configured to wirelessly transfer power from a power source (e.g., a wall outlet) to the power receiver 1528 via inductive coupling. In other embodiments, any suitable wireless power transfer method may be used. The power receiver 1528 is configured to receive power from the power transmitter 1526 and supply power to the battery 1522 for recharging. The power transmitter 1526 may be placed on the floor below the treadmill 1500. In this position, treadmill 1500 and power receiver 1528 may be moved over power transmitter 1526, powering treadmill 1500 and/or recharging battery 1522. In other implementations, the power transmitter 1526 may be attached to the treadmill 1500.

Treadmill 1500 includes a braking system 1530 that can be used to improve the operation of a manual treadmill, such as treadmill 1500. For example, the braking system 1530 may be used to slow and/or stop the rotation of the treadmill tread while the user is operating the treadmill, while the user is temporarily not using the treadmill, when the user accidentally stops using the treadmill, or when the user intentionally stops using the treadmill. These features provide advantages over typical manual treadmills that lack any braking and/or locking systems. For example, immediately after a user steps down the rotating tread of a manual treadmill, the rotational speed of the tread may suddenly increase due to the kinetic energy. This increase in tread speed may put the user or subsequent users at risk. The braking system 1530 can prevent or mitigate this increase in tread speed, and can stop or slow the rotation of the tread when not immediately available, thereby facilitating easier operation of the treadmill by the user or subsequent users.

The brake system 1530 includes: a presence sensor (not shown) having features similar to features of presence sensor 116, a weight sensor (not shown) having features similar to features of weight sensor 118, a proximity sensor (not shown) having features similar to features of proximity sensor 120, and a tread surface sensor 1531, each in communication with controller 1524. Tread sensor 1531 is configured to detect the speed of a tread (not shown) of treadmill 1500 having features similar to those of tread 102. Braking system 1530 may be used with treadmill 100 of fig. 1-12 in place of or in addition to brake 326, brake 700, lock 316, and/or lock 400. The braking system 1530 may be useful when used in conjunction with a manual treadmill.

Unless otherwise described, the brake system 1530 includes: a magnetic brake 1532 configured to slow rotation of front shaft 1502 and/or rear shaft 1504; and a locking mechanism 1534 having features similar to those of lock 316 or lock 400. Magnetic brake 1532 includes a brake member receiver 1535, a brake member 1537, and an actuator 1539. The brake member receiver 1535 is configured to attach to either the front axle 1502 or the rear axle 1504. The actuator 1539 is configured to move the brake member 1537 relative to the brake member receiver 1535 between the braking position and the non-braking position. In the braking position, the brake member 1537 is configured to apply a braking force to the brake member receiver 1535. In the non-braking position, the brake member 1537 is configured to not apply a braking force to the brake member receiver 1535. The rotational speed of the brake member receiver 1535, the front axle 1502 or the rear axle 1504, and the tread is reduced in response to applying a braking force to the brake member receiver 1535.

The locking mechanism 1534 includes: a locking member receiver 1536 having features similar to those of the locking member receiver 320 and/or the toothed cam 408, a locking member 1538 having features similar to those of the locking member 318 and/or the bolt 416, and an actuator 1540 having features similar to those of the actuator 322 and/or the solenoid 414. The actuator 1540 is configured to move the locking member 1538 between the locked position and the unlocked position. In the locked position, locking member 1538 and locking member receiver 1536 prevent rotation of front axle 1502 and/or rear axle 1504 and the tread. In the unlocked position, the front shaft 1502 and/or rear shaft 1504 and tread are allowed to rotate freely.

Fig. 14 is a top perspective view of a brake member receiver 1535 and a locking member receiver 1536 according to one embodiment, wherein the brake member receiver 1535 and the locking member receiver 1536 are included in a shaft coupling 1600. The coupling 1600 is configured to extend around the front shaft 1502, but in other embodiments, may be configured to extend around the rear shaft 1504. The coupling 1600 includes two halves that are attached together via a flange 1602 and fasteners such as nuts and bolts. In this configuration, the coupling 1600 can be attached to an axle of an existing treadmill such that the braking system 1530 can be retrofitted onto an existing treadmill. In other embodiments, the coupling 1600 may comprise one unitary piece, and/or may be initially manufactured with the treadmill. In the non-limiting example shown, locking member receiver 1536 includes a toothed cam 1604 that extends from coupler 1600 at an end of coupler 1600. In other embodiments, the toothed cam 1604 may extend from any portion of the coupling 1600. The toothed cam 1604 includes features similar to those of the toothed cam 408. In other embodiments, any other suitable cam may be used.

In the non-limiting example shown, the brake member receiver 1535 includes a flange 1606 extending from the coupling 1600 at an end of the coupling 1600 opposite the toothed cam 1604. In other embodiments, the flanges 1606 can each extend from any portion of the coupling 1600. The flange 1606 is circular, but may have any other outer profile in other embodiments. At least a portion of flange 1606 comprises a metallic and/or magnetic material, such as copper, aluminum, iron, cobalt, nickel, and the like. The flange 1606 includes a groove (not shown) extending around the periphery of the flange 1606. Damper 1608 extends around flange 1606 within the recess. Damper 1608 is configured to dampen vibration of flange 1606 as flange 1606 rotates. The damper may include a "T" shape and have a protrusion configured to extend into the groove. In other embodiments, the damper may comprise an O-ring. Damper 1608 may be made of rubber or any other suitable material. In some embodiments, coupling 1600 may not include damper 1608 or grooves.

Fig. 15 is a top perspective view of a brake member receiver 1535 and a locking member receiver 1536 according to another embodiment, wherein the brake member receiver 1535 and the locking member receiver 1536 are included in the coupling 1700. Unless otherwise described, the coupling 1700 includes features similar to those of the coupling 1600. The coupling 1700 includes a toothed cam 1702 having similar features as the toothed cam 1604. The toothed cams 1702 extend from one end of the coupling 1700, but in other embodiments, can extend from any portion of the coupling 1700. A first flange 1704 having similar features to those of flange 1606 extends from the end of coupling 1700 opposite toothed cams 1702. First flange 1704 is circular, but in other embodiments, may have any other outer profile.

As shown in fig. 15, first flange 1704 is optionally a slat engagement mechanism, such as a sprocket or the like, including one or more teeth 1705 extending from an edge of first flange 1704 configured to contact a portion of one or more of slats 1200 (e.g., underside 1204). In this configuration, contact between first flange 1704 and slat 1200 will prevent movement of the tread by preventing movement of the belt and slat when locking mechanism 1534 is in the locked position. Even with the locking mechanism 1534 actuated, the belt and slats can move because the belt and slats can slide over the guide wheels. This can occur, for example, if a child climbs onto the tread when the lock is engaged. The teeth 1705 have a shape such as rectangular, hook-shaped, etc. that will just touch the slats to resist movement of the slats and thus the belt. The slat engaging mechanism may have, for example, a paddle on a paddle wheel that engages the slat to resist movement, rather than teeth. The entire first flange 1704 and the sprocket teeth 1705 or just the teeth 1705 may be made of plastic (such as ABS or LEXAN plastic), or may be made of metal such as aluminum. The sprocket may be a single disc independent of the brake and mounted at different locations on one of the shafts, or may incorporate the first flange 1704 as shown, or any other flange.

A second flange 1706, having similar features to those of first flange 1704, extends from the coupling 1700 at a location between the toothed cam 1702 and the first flange 1704. In other embodiments, the first flange 1704 and the second flange 1706 can extend from any portion of the coupling 1700. The second flange 1706 may also or simply include one or more of the teeth 1705 to resist movement of the tread by contacting the slats. In other embodiments, only the first flange 1704 may include one or more of the teeth 1705, or both the first flange 1704 and the second flange 1706 may include one or more of the teeth 1705.

Fig. 16 is a top view of a magnetic actuator 1532 according to a first embodiment. The brake member receiver 1535 includes a flange 1606 extending from the coupling 1600. The coupling 1600 may be attached to the front shaft 1502 or the rear shaft 1504. The flange 1606 includes a protrusion 1801 extending from each side of the flange 1606. The protrusion 1801 may comprise a washer or any other suitable structure integral with or separately attached to the flange 1606. The brake 1532 includes a motor 1800 (e.g., an electric stepper motor) in communication with the controller 1524 and configured to rotate a self-reversing screw 1802 attached to the motor 1800. In other embodiments, any type of motor may be used. In other embodiments, self-reversing screw 1802 may include a lead screw or any other type of screw. Self-reversing screw 1802 is disposed in a housing 1804 that is attached to motor 1800. The end of self-reversing screw 1802 engages a ball bearing 1805 configured to prevent self-reversing screw 1802 from oscillating and maintain alignment between self-reversing screw 1802 and flange 1606. Ball bearing 1805 is attached to self-reversing screw 1802 using a pin 1807. In other embodiments, the ball bearings 1805 may be attached to the self-reversing screw 1802 using any other means. Alternatively, the brakes may be operated without a motor by using a compression spring and gradually releasing the spring using a controlled lever and cable attached to the treadmill handle.

The housing 1804 defines a slot (not shown) that extends along the length of the housing 1804. A nut 1803 positioned between self-reversing screw 1802 and housing 1804 is configured to move linearly along a length of self-reversing screw 1802 in response to rotation of self-reversing screw 1802. A portion of the nut 1803 extends through a slot in the housing 1804 such that the slot guides the linear movement of the nut 1803. The nut 1803 is attached to the magnet member 1806 such that the magnet member 1806 moves linearly relative to the housing 1804 in response to rotation of the self-reversing screw 1802. In other embodiments, any type of mechanical, electromechanical, hydraulic, pneumatic, piezoelectric, or rotary-linear actuator may be used to move the magnet member 1806. Another ball bearing 1809 is disposed between the nut 1803 and the housing 1804 at an end of the housing 1804 opposite the ball bearing 1805.

The magnet member 1806 defines a passage 1808. The magnets 1810 are attached to the magnet member 1806 inside the passage 1808. Three magnets 1810 are attached to each side of the channel 1808, but in other embodiments, any number of magnets 1810 may be used. The magnet 1810 may comprise a permanent magnet or an electromagnet. The magnet 1810 is configured to apply a magnetic force to the flange 1606. The inner contour of channel 1808 corresponds to the outer contour of flange 1606 such that when motor 1800 moves magnet member 1806 toward flange 1606, a portion of flange 1606 is disposed in channel 1808. In this position, magnet 1810 applies a magnetic force to flange 1606 to slow the rotation of flange 1606. Therefore, the rotation of the front shaft 1502, the rear shaft 1504, and the tread surface is slowed. Motor 1800 can be used to reduce the distance between magnet members 1806 and flanges 1606 to apply greater magnetic force to flanges 1606 and to more quickly slow the rotation of front shaft 1502 or rear shaft 1504 and the tread.

Motor 1800 may be configured to move magnet assembly 1806 until damper 1608 of flange 1606 contacts an inner surface of passage 1808 of magnet assembly 1806. Contact between damper 1608 and magnet assembly 1806 can further slow rotation of flange 1606.

Fig. 17 is a side view of a magnetic brake 1532 according to a second embodiment, in which the brake 1532 is another magnetic brake. Unless otherwise described, the brake 1532 according to the second embodiment shown in fig. 17 may include features similar to those of the brake 1532 according to the first embodiment shown in fig. 16. The brake 1532 includes a motor 1900 (e.g., an electric stepper motor) in communication with the controller 1524 and configured to rotate a lead screw 1902 attached to the motor 1900. In other embodiments, any type of motor may be used. Stepper motor 1900 is attached to a bracket 1904 configured to connect brake 1532 to any portion of frame 1506 (e.g., first support member 1514). The lead screw 1902 is attached to and disposed in a first housing 1906. The first housing 1906 has a square shape, but may have any other shape in other embodiments. A second housing 1907 defining a passage 1910 is attached to the bracket 1904. The channel 1910 is shaped and sized to receive the first housing 1906. The first housing 1906 and the lead screw 1902 extend through the channel 1910 such that rotation of the lead screw 1902 by the motor 1900 causes linear movement of the first housing 1906 in a longitudinal direction relative to the first housing 1906. The end of the first housing 1906 is attached to a magnet member 1908 having similar features as the magnet member 1806. Linear movement of the lead screw 1902 and the first housing 1906 causes movement of the magnet member 1908 relative to the flange 1606. The magnet member 1908 includes a magnet 1912 that is disposed inside a channel (not shown) defined by the magnet member 1908. The channel includes features similar to those of channel 1808 and the magnet includes features similar to those of magnet 1810.

Fig. 18 is a top view of a magnet member 2000 and the coupling 1700 of fig. 15, according to another embodiment. Unless otherwise described, the magnet member 2000 includes features similar to those of the magnet member 1806 or the magnet member 1908. The magnet member 2000 may be used with the brake 1532 described with respect to fig. 16 or 17. The magnet member 2000 includes a magnet support member 2002, one end of which is attached to the self-reversing screw 1802 or the lead screw 1902. In the non-limiting example shown, the magnet support member 2002 is Y-shaped, but in other embodiments may also include a C-shape or any other suitable configuration. The opposite ends of the magnet support member 2002 are attached to two magnet holding members 2004. Each of the magnet retaining members 2004 defines a channel 2006. A magnet 2008 is attached to each magnet retaining member 2004 within each channel 2006 to apply a magnetic force to one of the first flange 1704 or the second flange 1706. The inner contour of each channel 2006 corresponds to the outer contour of first flange 1706 or second flange 1706, such that a portion of each flange 1704, 1706 seats in one channel 2006 as motor 1800 or motor 1900 moves magnet member 2000 toward first flange 1704 and second flange 1706. In this configuration, a greater amount of magnetic force may be applied by magnet 2008 to first flange 1704 and second flange 1706 of coupling 1700 relative to the magnetic force applied to flange 1606 of coupling 1600 by brake 1532 of fig. 16 or 17. A greater amount of magnetic force applied to the coupling 1700 can more quickly slow the rotation of the tread to a desired speed. In other embodiments, two couplings 1600 may be attached to the front axle 1502 or the rear axle 1504 to more quickly slow the rotation of the tread when desired. In such embodiments, each coupling 1600 can correspond to an individual brake 1532 of fig. 16 or 17.

Fig. 19 is a flowchart of a process 2100 for operating the brake system 1530 while the user is operating the treadmill 1500. At operation 2102, the controller 1524 receives a signal from at least one of the weight sensors indicating detection of a user's presence on at least one of the side rails (e.g., the side rail 106); and receive a signal from the presence sensor indicating that the user is detected in an area of the tread (e.g., above the tread) and/or the side rail, suggestive of an intent to use the treadmill (e.g., the user has stepped off the tread and stepped on the side rail to rest, drink something, answer a phone call, etc., but has not yet left the treadmill). Instead of the second presence sensor indicating that a user is detected above the tread surface, the controller may receive an indication that the tread surface is moving, such as from a tread surface speed sensor. This would instruct the user on the tread to manually move the tread. At operation 2104, the controller 1524 activates the actuator 1539 to move the brake member 1537 to the braking position to slow rotation of the tread surface in response to receiving a signal from at least one of the weight sensors and receiving a signal from the presence sensor. The brake member 1537 may slow the tread until the tread reaches a threshold speed until the user or the controller 1524 initiates a command to move the brake member 1537 to the non-braking position, or until the tread is completely stopped.

If the user returns to the tread surface, walking down the side rail, then at operation 2106, the controller 1524 receives a signal from at least one of the weight sensors indicating that the user is not present on the side rail; and receive a signal from the presence sensor indicating that the user is detected in the region of the tread surface, suggesting an intent to use the treadmill (e.g., the user has backed off the tread surface). At operation 2108, the controller 1524 activates the actuator 1539 to move the brake member 1537 to the non-braking position in response to receiving a signal from at least one of the weight sensors indicating that the user is not present on the side rail and receiving a signal from the presence sensor indicating that the user is detected in the region of the tread surface suggesting an intent to use the treadmill.

If the user has decided to step off the treadmill or have fallen off the treadmill, then at operation 2110, the controller 1524 receives a signal from at least one of the weight sensors indicating that the user is not present on the side rail; and receive a signal from the presence sensor indicating that the user is not detected in the region of the tread and/or side rail, suggesting an intent to use the treadmill (e.g., the user has walked down the side rail and has left the treadmill). At operation 2112, the controller 1524 receives a signal from the tread surface sensor 1531 indicating that the tread surface is rotating at a threshold speed (e.g., 1mph) or less. The brake 1532 may slow down the rotation of the tread to the threshold speed in 10 seconds or less. At operation 2114, when the threshold is reached, controller 1524 activates actuator 1540 to move locking member 1538 to the locked position to stop rotation of the tread surface in response to receiving the signal from tread surface sensor 1531. With the lock in the locked position, if someone were to step on the tread, the teeth 1705 on the brake (if used) would also prevent the belt and slats from slipping.

Fig. 20 is a flowchart of a process 2200 for operating brake system 1530 while a user is operating treadmill 1500. At operation 2202, the controller 1524 receives a signal from at least one of the weight sensors indicating that a user is not present on the side rail; and receive a signal from the presence sensor indicating that the user is not detected in the region of the tread and/or side rail, suggesting an intent to use the treadmill (e.g., the user has stepped off the tread and has exited the treadmill without stepping on the side rail). At operation 2204, the controller 1524 activates the actuator 1539 to move the brake member 1537 to the braking position to slow rotation of the tread surface in response to receiving a signal from at least one of the weight sensors and receiving a signal from the presence sensor.

At operation 2206, the controller 1524 receives a signal from the tread surface sensor 1531 indicating that the tread surface has slowed to a threshold speed or less. At operation 2208, controller 1524 activates actuator 1540 to move locking member 1538 to the locked position to stop rotation of the tread surface in response to receiving the signal from tread surface sensor 1531. With the lock in the locked position, if someone were to step on the tread, the teeth 1705 on the brake (if used) would also prevent the belt and slats from slipping. The controller 1524 may activate the actuator 1540 to move the locking member 1538 to the unlocked position, as previously described.

Braking system 1530 can be used to further control the rotational speed and/or rotational resistance of the tread during use. A user may use a display of treadmill 1500 having similar features as display 112 to enter a command to move brake member 1537 directly to the braking position in response to the command and while the user is using the treadmill. Additionally and/or alternatively, commands may be entered using a dial, joystick, button, switch, or any other user input device. In the braking position, the braking members 1537 may be used to add resistance to the rotation of the tread to increase the user's exercise intensity. The user may also enter commands to move the brake member 1537 to the non-braking position as described above. For example, the brake members 1537 may be used to reduce resistance to rotation of the tread to reduce the exercise intensity of the user.

According to one example, controller 1524 may adjust the resistance applied to the tread by adjusting the distance between magnet adjustment member 1806 and flange 1606 of fig. 14 as previously described in response to receiving input generated by a user. The user may set actuation of the brake member 1537 to the braking position and/or the non-braking position to occur immediately after receiving the user input, or may set actuation of the brake member 1537 to occur according to a predetermined and/or customized time sequence. These features may allow a user to create customized exercise programs. The user may also program the speed/resistance control before starting the workout, or select from a menu of predetermined programs. The user may set a maximum rotational speed for the manual treadmill because the manual treadmill may accelerate due to kinetic energy and the user may not be able to keep up. A magnetic brake development program may be used to initiate braking based on both speed and one or more biometric characteristics. For example, if body temperature is detected by an infrared temperature sensor to exceed a threshold and the speed of the tread surface is greater than a predetermined speed, the brakes may be automatically applied.

Fig. 21 is a flowchart of a process 2300 for operating the brake system 1530 to set the maximum speed. At operation 2302, the controller 1524 receives a user-generated command to set a maximum speed. The user may generate commands prior to or while operating the treadmill. Additionally and/or alternatively, the controller 1524 may include a memory configured to store a user profile associated with a maximum speed previously selected by a user. In other embodiments, the user profile may be stored on any other device or server. In response to receiving the identification code associated with the user, the controller 1524 may automatically select the maximum speed associated with the user. At operation 2304, controller 1524 receives a signal from tread surface sensor 1531 indicating that the tread surface is rotating at a maximum speed. At operation 2306, controller 1524 activates actuator 1539 to move brake member 1537 to the braking position in response to receiving the signal from tread surface sensor 1531, thereby preventing the tread surface from rotating at a speed faster than the maximum speed. In some embodiments, controller 1524 may activate actuator 1539 to move brake member 1537 to the braking position, preventing the tread from rotating at a speed faster than a predetermined maximum speed, which may or may not be set or changed by the user, but may be programmed by the manufacturer or owner of the facility in which the treadmill is used for safety purposes.

The word "example" is used herein to mean serving as an example, instance, or illustration. Any aspect or design described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other aspects or designs. Rather, use of the word "example" is intended to present concepts in a concrete fashion. As used in this application, the term "or" is intended to mean an inclusive "or" rather than an exclusive "or". That is, unless specified otherwise, or clear from context, "X comprises a or B" is intended to mean any of the natural inclusive permutations. That is, if X includes a, X includes B, or X includes a and B, "X includes a or B" is satisfied under any of the foregoing examples. In addition, the articles "a" and "an" as used in this application and the appended claims should generally be construed to mean "one or more" unless specified otherwise or clear from context to be directed to a singular form. Furthermore, unless so described, use of the term "one implementation" or "an implementation" throughout is not intended to represent the same embodiment or implementation.

Implementations of controller 314, controller 1524, and any other controllers described herein (as well as algorithms, methods, instructions, etc. stored thereon and/or executed thereby) may be implemented in hardware, software, or any combination thereof. The hardware may include, for example, a computer, an Intellectual Property (IP) core, an Application Specific Integrated Circuit (ASIC), a programmable logic array, an optical processor, a programmable logic controller, microcode, a microcontroller, a server, a microprocessor, a digital signal processor, or any other suitable circuitry. The terms "signal" and "data" are used interchangeably. Moreover, portions of the controller 314 or any other described controller need not necessarily be implemented in the same manner.

Further, in one aspect, for example, the controller 314 may be implemented using a general purpose computer or a general purpose processor having a computer program that, when executed, implements any of the respective methods, algorithms, and/or instructions described herein. Additionally or alternatively, for example, a special purpose computer/processor may be utilized that may include other hardware to implement any of the methods, algorithms, or instructions described herein.

Moreover, all or a portion of the implementations of the present disclosure may take the form of a computer program product accessible from, for example, a computer-usable or computer-readable medium. A computer-usable or computer-readable medium may be any apparatus that can, for example, tangibly contain, store, communicate, or transport the program for use by or in connection with the processor. The medium may be, for example, an electronic, magnetic, optical, electromagnetic, or semiconductor device. Other suitable media are also available.

While the disclosure has been described in connection with certain embodiments, it is to be understood that the disclosure is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the scope of the appended claims, which scope is to be accorded the broadest interpretation so as to encompass all such modifications and equivalent structures as is permitted under the law.