阅读说明：本技术 用于调节车辆座椅的装置 (Device for adjusting a vehicle seat ) 是由 韩宗锡 罗善彩 文贤奎 郑璨浩 于 2018-12-03 设计创作，主要内容包括：本发明涉及一种用于调节车辆座椅的装置,其能够通过使用具有活塞的多个致动器来实现包括调节座椅前后位置、座椅上下高度以及倾斜等功能。调节座椅前后位置、座椅上下高度以及倾斜等的功能通过经由多个致动器和单个连杆在地板和座垫框架之间提供连接并且选择性地前伸、后缩移动各致动器的活塞来实现。(The present invention relates to an apparatus for adjusting a vehicle seat, which is capable of achieving functions including adjusting a seat front-rear position, a seat up-down height, and a tilt by using a plurality of actuators having pistons. The functions of adjusting the seat front-rear position, the seat up-down height, the reclining, and the like are achieved by providing a connection between the floor and the seat cushion frame via a plurality of actuators and a single link and selectively extending and retracting the pistons of the respective actuators.)

1. A device for adjusting a vehicle seat, comprising:

a support link installed on the floor through a hinge;

a first actuator connected between the support link and a front lower surface of the seat cushion frame;

a second actuator connected between the floor and the first actuator;

a third actuator connected between a rear lower surface of the seat cushion frame and the floor; and

a controller that selectively controls driving of at least one of the first to third actuators to perform at least one of fore-and-aft position adjustment, up-and-down height adjustment, and reclining of the seat.

2. The apparatus for adjusting a vehicle seat according to claim 1, wherein:

the first actuator includes: a first cylinder; a first piston disposed in the first cylinder to be capable of forward and backward movement; and a first motor installed on the first cylinder to provide a driving force for the first piston to extend forward and retract backward; and is

A lower portion of the first cylinder is mounted on the support link, and the first piston is fixed to a front lower surface of the seat cushion frame by a hinge.

3. The apparatus for adjusting a vehicle seat according to claim 2, wherein:

a rotation pipe installed to be rotatable at a lower portion of the cushion frame to enable free rotation between the cushion frame and the first piston; and is

The end of the first piston is connected to the rotary tube.

4. The apparatus for adjusting a vehicle seat according to claim 2, wherein the support link includes:

the first cylinder body is fixedly arranged on the horizontal rod; and

and a vertical bar bent downward from both sides of the horizontal bar to be installed on the floor by a hinge.

5. The apparatus for adjusting a vehicle seat according to claim 1, wherein:

the second actuator includes: a second cylinder; a second piston disposed in the second cylinder to be capable of forward and backward movement; and a second motor installed on the second cylinder to provide a driving force for the second piston to extend forward and retract backward; and is

A lower portion of the second cylinder is fixed to the floor by a hinge, and the second piston is fixed to the first cylinder of the first actuator by a hinge.

6. The apparatus for adjusting a vehicle seat according to claim 1, wherein:

the third actuator includes: a third cylinder; a third piston disposed in the third cylinder to be capable of forward and backward movement; and a third motor mounted on the third cylinder to provide a forward-extending and backward-extending driving force to the third piston; and is

A lower portion of the third cylinder is fixed to the floor by a hinge, and the third piston is fixed to a rear lower surface of the seat cushion frame by a hinge.

7. The apparatus for adjusting a vehicle seat according to claim 1, wherein:

the forward movement position adjustment of the seat is achieved by: a simultaneous operation of the first actuator in which the first piston is moved forward, an operation in which the first actuator is pulled forward to rotate by the retraction movement of the second piston of the second actuator, and an operation in which the third piston of the third actuator is moved rearward to rotate forward; and is

The rearward movement position adjustment of the seat is achieved by: a simultaneous retracting movement operation of a first piston of the first actuator, an operation in which the first actuator is pushed backward to rotate by a forward extending movement of a second piston of the second actuator, and an operation in which a third piston of the third actuator is moved forward to rotate backward.

8. The apparatus for adjusting a vehicle seat according to claim 1, wherein:

the height-up adjustment of the seat is achieved by: a simultaneous forward-extending movement operation of a first piston of the first actuator, an operation in which the first actuator is pushed backward by a forward-extending movement of a second piston of the second actuator while rotating, and an operation in which a third piston of the third actuator rotates forward while moving forward; and is

The height reduction adjustment of the seat is achieved by: a simultaneous retracting movement operation of a first piston of the first actuator, an operation in which the first actuator is pulled forward to rotate by a retracting movement of a second piston of the second actuator, and an operation in which a third piston of the third actuator rotates backward while moving in the retracting direction.

9. The apparatus for adjusting a vehicle seat according to claim 1, wherein the reclining adjustment of the seat is achieved by: the operation of the forward movement of the second piston of the second actuator, the operation of the first actuator being pushed backward to rotate by the forward movement of the second piston, and the operation of the third actuator rotating backward are performed simultaneously.

Technical Field

The present invention relates to a device for adjusting a vehicle seat, and more particularly, to a seat adjusting device capable of adjusting a seat front-rear position, a seat up-down height, a tilt, and the like by using a plurality of actuators having pistons.

Background

In general, a seat of a vehicle is equipped with a behavior mechanism for posture control and convenience of an occupant such as a front-rear position adjustment, a vertical height adjustment, and a tilt function.

However, separately providing seat performance mechanisms such as the front-rear position adjustment, the vertical height adjustment, and the reclining function leads to problems of an increase in the total number of parts required for the seat adjustment, a very complicated assembly structure, and an insufficient installation space.

In particular, a mechanism for adjusting the seat position forwardly and rearwardly basically includes a slide rail mounted on the floor, a slide link mounted on the slide rail so as to be movable forwardly and rearwardly, a motor for driving the slide link, and other connecting members and a bracket. Further, the mechanism for adjusting the height of the seat basically requires a motor and a height link or the like for adjusting the height, and the reclining mechanism basically requires a drive motor and a link or the like for reclining.

Similarly to the mechanism for adjusting the seat position forward and backward, a mechanism for adjusting the seat height, a reclining mechanism, and the like are independently provided. Furthermore, each mechanism typically requires many components. Further, there are problems in that the manufacturing cost is increased, the assembly structure is very complicated and the assembly workability is inevitably lowered, and in particular, the layout space for installing each mechanism is insufficient.

The above information disclosed in this background section is only for enhancement of understanding of the background of the invention and therefore it may contain information that does not form the prior art that is already known in this country to a person of ordinary skill in the art.

Disclosure of Invention

Accordingly, the present invention provides an apparatus for adjusting a vehicle seat, which is capable of performing operations of adjusting a seat front-rear position, a seat up-down height, a seat tilt, etc., by connecting a floor and a seat cushion frame via a plurality of actuators and a single link and selectively moving pistons of the respective actuators forward and backward.

The apparatus for adjusting a vehicle seat according to the present invention may include: a support link mounted on the floor via a hinge; a first actuator connected between the support link and a front lower surface of the seat cushion frame; a second actuator connected between the floor and the first actuator; a third actuator connected between a rear lower surface of the seat cushion frame and the floor; and a controller that selectively controls driving of at least one of the first to third actuators to perform at least one of seat front-rear position adjustment, seat up-down height adjustment, and seat reclining.

The first actuator may include: a first cylinder; a first piston disposed in the first cylinder to be movable in a forward and backward direction; and a first motor installed on the first cylinder to provide a driving force for the first piston to extend forward and retract backward; and a lower portion of the first cylinder is mounted on the support link, and the first piston is fastened to a front lower surface of the seat cushion frame by a hinge.

Preferably, the rotation pipe may be installed to be rotatable at a lower portion of the cushion frame to enable free rotation between the cushion frame and the first piston; and an end of the first piston may be connected with the rotary pipe.

Preferably, the support link may include: the first cylinder body is fixedly arranged on the horizontal rod; and a vertical bar bent downward from both sides of the horizontal bar to be installed on the floor by a hinge.

The second actuator may include: a second cylinder; a second piston disposed in the second cylinder to be movable in a forward and backward direction; and a second motor installed on the second cylinder to provide a driving force for the second piston to extend forward and retract backward; and a lower portion of the second cylinder is fastened to the floor through a hinge, and the second piston is fastened to the first cylinder of the first actuator through a hinge.

The third actuator may include: a third cylinder; a third piston disposed in the third cylinder to be movable forward and backward; and a third motor installed on the third cylinder to provide a driving force for the third piston to extend forward and retract backward; and a lower portion of the third cylinder is fastened to the floor through a hinge, and the third piston may be fastened to a rear lower surface of the seat cushion frame through a hinge.

The forward movement position adjustment of the seat may be achieved by: a simultaneous operation of the first actuator's first piston's advancing movement, the first actuator's operation of being pulled forward to rotate (angle-rotated) by the second actuator's second piston's retracting movement, and the third actuator's third piston's retracting movement to rotate forward; and the rearward movement position adjustment of the seat may be achieved by: the operation of the retracting movement of the first piston of the first actuator, the operation of the first actuator being pushed backward to rotate by the advancing movement of the second piston of the second actuator, and the operation of the third piston of the third actuator being advanced to rotate backward are performed simultaneously.

The height-raising adjustment of the seat can be achieved by: a simultaneous forward-extending movement operation of a first piston of a first actuator, an operation in which the first actuator is pushed backward by a forward-extending movement of a second piston of a second actuator while rotating, and an operation in which a third piston of a third actuator rotates forward while moving forward; and the height reduction adjustment of the seat may be achieved by: the operation of the retracting movement of the first piston of the first actuator, the operation of the first actuator being pulled forward to rotate by the retracting movement of the second piston of the second actuator, and the operation of the third piston of the third actuator being rotated backward while the retracting movement are simultaneously performed.

The reclining adjustment of the seat may be achieved by: the operation of the forward movement of the second piston of the second actuator, the operation of the first actuator being pushed backward to rotate by the forward movement of the second piston, and the operation of the third actuator rotating backward are performed simultaneously.

The present invention has the following effects by the means for solving the above problems.

First, by operating a plurality of actuators connected between the floor and the seat cushion frame, operations of adjusting the seat position forward and backward, adjusting the height up and down, tilting, and the like are achieved, so that it is possible to simplify the structure and reduce the number of parts, and to improve the assembly work by a simple assembly structure.

Secondly, since the components for adjusting the seat position forward and backward, adjusting the height up and down, tilting, and the like are limited to only a plurality of actuators and a single link, a sufficient layout space for seat adjustment can be secured, and when a swivel seat adapted to an autonomous vehicle is swiveled in the future, a space for a swivel trajectory can be easily secured while preventing interference between the components.

Other aspects and preferred embodiments of the invention are discussed below.

Drawings

The above and other features of the present invention will now be described in detail with reference to certain exemplary embodiments thereof as illustrated in the accompanying drawings, which are given by way of illustration only, and thus are not limiting of the invention, wherein:

fig. 1a and 1b are perspective views illustrating a device for adjusting a vehicle seat according to the present invention;

fig. 2 is a perspective view showing an external appearance of a seat mounted with the apparatus for adjusting a vehicle seat according to the present invention;

fig. 3 and 4 are side views illustrating a front-rear position adjusting operation of the apparatus for adjusting a vehicle seat according to the present invention;

fig. 5 and 6 are side views illustrating an up-down height adjusting operation of the apparatus for adjusting a vehicle seat according to the present invention; and

fig. 7 and 8 are side views illustrating a tilting operation of the apparatus for adjusting a vehicle seat according to the present invention.

It should be understood that the drawings are not necessarily to scale, presenting a simplified representation of various preferred features illustrative of the basic principles of the invention. The specific design features of the invention, including, for example, specific dimensions, orientations, locations, and shapes, as disclosed herein, will be determined in part by the particular intended application and use environment.

In the drawings, like or equivalent elements of the present invention are designated by reference numerals throughout the several views of the drawings.

Detailed Description

It is understood that the term "vehicle" or "vehicular" or other similar terms as used herein include motor vehicles in general, such as passenger vehicles including Sport Utility Vehicles (SUVs), buses, trucks, various commercial vehicles, watercraft including a variety of boats and ships, aircraft, and the like, and include hybrid vehicles, electric vehicles, plug-in hybrid electric vehicles, hydrogen-powered vehicles, and other alternative fuel vehicles (e.g., fuels derived from resources other than petroleum). As referred to herein, a hybrid vehicle is a vehicle having two or more power sources, such as a vehicle that has both gasoline power and electric power.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, and/or components, and/or groups thereof. As used herein, the word "and/or" includes any and all combinations of one or more of the associated listed items. Throughout this specification, unless explicitly described to the contrary, the word "comprise", and variations such as "comprises" or "comprising", will be understood to imply the inclusion of stated elements but not the exclusion of any other elements. Further, the terms "unit", "piece", "device", and "module" described in the specification mean a unit that processes at least one function and operation, and may be implemented by hardware or software, and a combination thereof.

Furthermore, the control logic of the present invention may be embodied as a non-transitory computer readable medium on a computer readable medium containing executable program instructions for execution by a processor, controller, or the like. Examples of computer readable media include, but are not limited to, ROM, RAM, Compact Disc (CD) -ROM, magnetic tape, floppy disk, flash drive, smart card, and optical data storage device. The computer readable medium CAN also be distributed over a network coupled computer systems so that the computer readable medium is stored and executed in a distributed fashion, such as through a telematics server or Controller Area Network (CAN).

In the following, reference will now be made in detail to various embodiments of the invention, examples of which are illustrated in the accompanying drawings and described below. While the invention will be described in conjunction with the exemplary embodiments, it will be understood that the description is not intended to limit the invention to those exemplary embodiments. On the contrary, the invention is intended to cover not only the exemplary embodiments, but also various alternatives, modifications, equivalents and other embodiments, which are included in the spirit and scope of the invention as defined by the appended claims.

Fig. 1a, 1b and 2 are perspective views illustrating an apparatus for adjusting a vehicle seat according to the present invention, in which reference numeral 100 denotes a floor, and reference numeral 200 denotes a cushion frame.

In fig. 1a, 1b and 2, the floor 100 shows only a partial area in which the device for adjusting the vehicle seat is installed, and it represents a panel that may be installed on an indoor floor or an interior floor of a vehicle.

The seat cushion frame 200 is a framework constituting a seat cushion 212 of the seat 210, and it is embedded in the seat cushion 212 in a predetermined manner.

The present invention may connect the floor panel 100 and the seat cushion frame 200 by three or more actuators, and accomplish the operations of adjusting the seat front-rear position, the up-down height, and tilting the seat by selectively actuating the respective actuators.

As a preferred exemplary embodiment of the present invention, the floor panel 100 and the seat cushion frame 200 may be connected with the first, second and third actuators 10, 20 and 30.

The first actuator 10 may be connected between the support link 40, which is mounted on the floor 100 by a hinge, and the front lower surface of the seat cushion frame 200.

In particular, the first actuator 10 may include: a first cylinder 11, a first piston 12 embedded in the first cylinder 11 to be movable forward and backward, and a first motor 13 mounted on the first cylinder 11 to provide the first piston 12 with forward and backward extending forces.

Further, the support link 40 may include: a horizontal rod 41 on which the first cylinder 11 is fixedly mounted; and a vertical bar 42 bent downward from both ends of the horizontal bar 41 and installed on the floor 100 by a hinge.

In particular, the lower portion of the first cylinder 11 of the first actuator 10 may be fixedly mounted on the support link 40 by welding or the like, and the first piston 12 is fastened to the front lower surface of the seat cushion frame 200 by a hinge.

Preferably, the first cylinder 11 of the first actuator 10 and the vertical rod 42 of the support link 40 may be aligned to have the same angular rotational locus when viewed from the side.

Therefore, the first actuator 10 may be arranged to be inclined or vertically erected in the forward direction together with the support link 40.

On the other hand, a rotation pipe 220 for free hinge engagement with the first piston 12 may be provided in the width direction of the seat and installed to be rotatable at a lower portion of the seat cushion frame 200 (a position where the first piston of the first actuator is installed), and an end of the first piston 12 may be connected with the rotation pipe 220, so that the rotation pipe 220 and the first piston 12 may be arranged in a T-shape.

Accordingly, the end of the first piston 12 is connected with the rotation pipe 220, so that free rotation (i.e., substantially or relatively free rotation) between the cushion frame 200 and the first piston 12 is possible.

The second actuator 20 may be connected between the floor 100 and the first actuator 10.

The second actuator 20 may include: a second cylinder 21, a second piston 22 disposed in the second cylinder 21 to be movable forward and backward, and a second motor 23 mounted on the second cylinder 21 to provide forward and backward driving torque to the second piston 22.

The lower portion of the second cylinder 21 of the second actuator 20 thus provided may be fastened to the floor 100 by a hinge, and the front end portion of the second piston 22 may be fastened to the first cylinder 11 of the first actuator 10 by a hinge.

In particular, unlike the first actuator 10, the second actuator 20 may be disposed to be inclined in a rearward direction.

The third actuator 30 may be connected between the rear lower surface of the floor panel 100 and the seat cushion frame 200.

Also, the third actuator 30 may include: a third cylinder 31, a third piston 32 movably disposed in the third cylinder 31, and a third motor 33 mounted on the third cylinder 31 to provide a driving force for advancing and retracting.

Accordingly, the lower portion of the third cylinder 31 may be fastened to the floor 100 by a hinge, and the third piston 32 may be fastened to the rear lower surface of the seat cushion frame 200 by a hinge.

In particular, the third actuator 30 may be disposed to be inclined in a rearward direction.

Although the first to third actuators 10, 20 and 30 are described as conventional electric cylinders having a mechanism for transmitting the driving torque of the electric motor to the piston, hydraulic or pneumatic cylinders may be used.

Meanwhile, the apparatus for adjusting a seat of the present invention may include a controller (not shown) for selectively controlling at least one of the first to third actuators 10, 20 and 30 for adjusting a seat front-rear position, an up-down height, a tilt, etc., and a control signal of the controller may control the length of the forward and backward movement of the piston of each of the actuators 10, 20 and 30 to be equal to or different from each other.

Here, various operation examples of the apparatus for adjusting a seat of the present invention having the above-described configuration will be described below.

Front-back adjusting seat

Fig. 3 and 4 illustrate a front-rear position adjusting operation of the apparatus for adjusting a vehicle seat according to the present invention.

The front-rear adjusting seat operation may be performed by sliding the seat cushion frame forward and backward.

Specifically, a piston forward-extension driving signal is transmitted from the controller to the first actuator 10 to move the seat cushion frame 200 forward, a piston backward-retraction driving signal is transmitted to the second actuator 20, and a piston backward-retraction driving signal is transmitted to the third actuator 30.

Therefore, as shown in fig. 3, in order to adjust the seat back and forth, the operation of extending the first piston 12 of the first actuator 10, the operation of retracting the second piston 22 of the second actuator 20, and the operation of retracting the third piston 32 of the third actuator 30 are simultaneously performed.

In particular, the forward movement position adjustment of the seat may be achieved by: the operation of the first actuator 10 for the forward movement of the first piston 12, the operation of the first actuator 10 being pulled forward for rotation by the retraction movement of the second piston 22 of the second actuator 20, and the operation of the third actuator 30 for the rearward movement of the third piston 32 for forward rotation are performed simultaneously.

Further, since the first piston 12 is freely rotatably connected with respect to the front lower portion of the cushion frame 200 via the rotation pipe 220, the forward extending movement of the first piston 12 and the rearward retracting movement of the second piston 22 cause the first actuator 10 to be tilted forward and simultaneously pull the cushion frame 200 forward, while the third piston 32 fastened to the rear lower surface of the cushion frame 200 by the hinge is moved rearward to support the lower portion of the cushion frame 200, thereby preventing the height of the cushion frame 200 from being changed.

On the other hand, the rearward movement position adjustment of the seat is achieved by: the simultaneous operation of the retracting movement of the first piston 12 of the first actuator 10, the operation of the first actuator being pushed backward to rotate by the extending movement of the second piston 22 of the second actuator 20, and the operation of the third piston 32 of the third actuator 30 being extended forward to rotate.

In other words, the rearward movement position adjustment of the seat is achieved by: the simultaneous operation of the retracting movement of the first piston 12 of the first actuator 10, the operation of the first actuator 10 being pushed rearward by the extending movement of the second piston 22 of the second actuator 20 while rotating, and the operation of the third piston 32 of the third actuator 30 extending forward while the third actuator 30 rotates rearward.

Up-down adjusting seat

Fig. 5 and 6 are side views illustrating an up-down height adjusting operation of the apparatus for adjusting a vehicle seat according to the present invention.

The up-down height adjusting operation of the seat may be performed by lifting up or down the cushion frame.

Specifically, in order to move the seat cushion frame 200 upward, a piston protrusion driving signal is transmitted from the controller to the first actuator 10, a piston protrusion driving signal is transmitted to the third actuator 30, and the controller transmits a protrusion driving signal to the second actuator 20.

Therefore, as shown in fig. 5, in order to adjust the height of the seat up and down, the first piston 12 of the first actuator 10 is forwardly moved while the third piston 32 of the third actuator 30 is forwardly moved to push the seat cushion frame 200 upward, so that the height of the seat is adjusted upward.

In particular, the height-raising adjustment of the seat can be achieved by: the simultaneous operation of the forward movement of the first piston 12 of the first actuator 10, the operation of the first actuator 10 being pushed rearward by the forward movement of the second piston 22 of the second actuator 20 while rotating, and the operation of the third piston 32 of the third actuator 30 rotating forward while moving forward are performed.

In contrast, when the first piston 12 of the first actuator 10 is operated to retract and, at the same time, the third piston 32 of the third actuator 30 is operated to retract to pull down the seat cushion frame 200, the height of the seat is lowered.

In other words, the height reduction adjustment of the seat can be achieved by: the simultaneous retracting movement operation of the first piston 12 of the first actuator 10, the operation in which the first actuator 10 is pulled forward to rotate by the retracting movement of the second piston 22 of the second actuator 20, and the operation in which the third piston 32 of the third actuator 30 rotates backward while the retracting movement.

Seat tilt operation

Fig. 7 and 8 are side views illustrating a tilting operation of the apparatus for adjusting a vehicle seat according to the present invention.

The seat reclining operation may be performed by tilting the cushion frame backward.

Specifically, in order to tilt the seat cushion frame 200, the controller transmits only the piston-extending drive signal to the second actuator 20, and the first actuator 10 and the third actuator 30 do not operate because they do not receive the drive signal transmitted from the controller.

Therefore, as shown in fig. 7, in order to perform the seat reclining adjustment, the second piston 22 of the second actuator 20 is operated to extend forward, and the first actuator 10 is pushed rearward by the extending movement of the second piston 22 while rotating rearward, and at the same time, the third actuator 30 rotates rearward.

In particular, the adjustment of the inclination of the seat can be achieved by: the simultaneous forward-extending operation of the second piston 22 of the second actuator 20, the operation in which the first actuator 10 is pushed to rotate backward by the forward-extending movement of the second piston 22, and the operation in which the third actuator 30 rotates backward.

Specifically, the second actuator 20 is diagonally arranged toward the rear while supporting the first actuator 10.

Therefore, the forward extending actuating force of the second piston 22 acts on the first actuator 10, so that the first actuator 10 is pushed to rotate, but the first actuator 10 rotates rearward about the hinge fastening point between the floor 100 and the first cylinder 11 and the hinge fastening point between the rotating tube 220 of the seat cushion frame 200 and the first piston 12, so that the front end portion of the seat cushion frame 200 pivotally moves rearward.

At the same time, the rear end portion of the seat cushion frame 200 is also pivotally moved rearward about the hinge fastening point between the third cylinder 31 of the third actuator 30 and the floor 100 and the hinge fastening point between the seat cushion frame 200 and the third piston 32, so that the height thereof is lowered.

Similarly, the seat cushion frame 200 is tilted only by driving the first actuator 10, so that the tilt adjustment of the entire seat can be facilitated.

As described above, the present invention adjusts the seat front-rear position, the seat up-down height, the seat tilt, and the like using a plurality of actuators connected between the floor and the seat cushion frame, thereby making it possible to simplify the configuration and reduce the number of parts as compared with the existing complicated mechanism configuration, and to improve the assembling workability by a simple assembling structure and to secure a sufficient layout space for seat adjustment, thereby easily securing a rotation trajectory space of a swivel seat to be applied to an autonomous vehicle in the future.