阅读说明：本技术 作业机械用操作机构以及具备其的作业机械 (Operating mechanism for working machine and working machine provided with same ) 是由 佐佐木均 佐伯诚司 山崎洋一郎 中沟康平 于 2020-02-06 设计创作，主要内容包括：本发明涉及一种作业机械用操作机构。第1操作机构(3)具备：基于运转指令生成驱动力的第1驱动源(30)；通过来自第1驱动源(30)的驱动力使左侧行驶踏板(1c)倾倒的第1驱动机构(32)。第1驱动机构(32)具有与左侧行驶踏板(1c)的踏板面抵接的第1抵接部(32a)；使第1抵接部倾倒来使左侧行驶踏板(1c)倾倒的第1驱动部(32b)。第1驱动部(32b)配置于从第1抵接部(32a)进行移动的空间向侧方偏移的位置。(The present invention relates to an operating mechanism for a working machine. The 1 st operating mechanism (3) comprises: a 1 st drive source (30) that generates a drive force on the basis of an operation command; a 1 st drive mechanism (32) for tilting the left travel pedal (1c) by the drive force from the 1 st drive source (30). The 1 st drive mechanism (32) is provided with a 1 st contact part (32a) which is contacted with the pedal surface of the left running pedal (1 c); a 1 st driving part (32b) for tilting the 1 st contact part to tilt the left running pedal (1 c). The 1 st driving part (32b) is arranged at a position laterally offset from a space where the 1 st contact part (32a) moves.)

1. An operating mechanism for a working machine, which is used for pedal tip-in for controlling the operation of the working machine according to the tip-in based on an operation command, comprising:

a drive source that generates a drive force based on the operation command;

a drive mechanism for tilting the step plate by a drive force from the drive source,

the drive mechanism includes: an abutting portion that abuts a pedal surface of the pedal, which is a surface on which an operator steps when operating the pedal; a drive unit for tilting the contact portion to tilt the pedal,

the driving portion is disposed at a position laterally offset from a space in which the contact portion moves.

2. The operating mechanism for a working machine according to claim 1,

the driving part is provided with a speed reducer comprising a 1 st gear and a 2 nd gear,

the 1 st gear and the 2 nd gear are arranged in an up-down direction.

3. The operating mechanism for a working machine according to claim 1 or 2,

the pedals comprise a 1 st pedal and a 2 nd pedal,

the driving part comprises a 1 st driving part for enabling the 1 st pedal to incline and a 2 nd driving part for driving the 2 nd pedal,

the drive mechanism has a coupling portion for coupling the 1 st drive portion and the 2 nd drive portion.

4. The operating mechanism for a working machine according to any one of claims 1 to 3,

the abutting portion is plate-shaped corresponding to the tread surface.

5. A working machine is characterized in that a working machine is provided,

the operating mechanism for a working machine according to any one of claims 1 to 4 is provided.

Technical Field

The present invention relates to an operating mechanism for a working machine for operating the working machine based on an operation command, and more particularly to an operating mechanism for a working machine for remotely operating the working machine, and a working machine provided with the operating mechanism.

Background

Conventionally, there is known an operating mechanism that indirectly operates a pedal that is directly operable in a state where an operator is seated in a seat in a cab, based on an operation command transmitted from the outside of a working machine, and remotely operates the working machine (see, for example, patent document 1).

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open publication No. 2017-172174

Disclosure of Invention

Technical problem to be solved by the invention

However, depending on the shape of the operating mechanism, when the operator wants to directly operate the pedal in a state where the operating mechanism is provided, the operating mechanism may interfere with the direct operation. For example, when a part of the operating mechanism is located above the tread surface of the pedal, the movement of the foot of the operator may be restricted by the part, and the operation of the pedal by the foot may be hindered.

The present invention has been made in view of the above problems, and an object thereof is to provide a work machine operating mechanism that is less likely to interfere with direct operation of a pedal by an operator even when the work machine operating mechanism is provided, and a work machine including the same.

Solution for solving the above technical problem

An operation mechanism for a working machine according to the present invention is a pedal tip-in mechanism for controlling an operation of a working machine according to a tip-in operation based on an operation command, the operation mechanism comprising:

a drive source that generates a drive force based on the operation command;

a drive mechanism for tilting the step plate by a drive force from the drive source,

the drive mechanism includes: an abutting portion that abuts a pedal surface of the pedal, which is a surface on which an operator steps when operating the pedal; a drive unit that moves the contact portion to tilt the pedal,

the driving portion is disposed at a position laterally offset from a space in which the contact portion moves.

Drawings

Fig. 1 is a schematic diagram showing an overall configuration of a remote operation system of a working machine according to an embodiment.

Fig. 2 is a schematic diagram showing a schematic configuration of a remote operation device of the remote operation system of fig. 1.

Fig. 3 is a block diagram showing a configuration related to control of the remote operation system of fig. 1.

Fig. 4 is a perspective view showing the entire configuration of the 1 st operating mechanism and the 2 nd operating mechanism of the work machine of fig. 1.

Fig. 5 is a plan view showing the entire configuration of the 1 st operating mechanism and the 2 nd operating mechanism of the work machine of fig. 1.

Fig. 6 is a side view showing a structure of a machine room of the working machine of fig. 1.

Fig. 7 is a perspective view showing a main part of the 1 st operating mechanism of fig. 4 in an enlarged manner.

Fig. 8 is a side view of a speed reducer of the 1 st drive mechanism of the 1 st operating mechanism of fig. 4.

Fig. 9 is a side view showing the structure of the 1 st driven pulley cover periphery of the 1 st driving mechanism of the 1 st operating mechanism of fig. 6.

Detailed Description

Hereinafter, the remote operation system S according to the embodiment will be described with reference to the drawings.

First, the configuration of the remote operation system S will be described with reference to fig. 1 to 3.

As shown in fig. 1, the remote operation system S includes a work machine 1, which is a hydraulic excavator, and a remote operation device 2 for remotely operating the work machine 1. The work machine 1 may be directly operated by an operator on board, or may be indirectly operated by the operator via the remote operation device 2 without being on board.

In the present embodiment, a hydraulic excavator is used as the work machine. However, the work machine according to the present invention is not limited to the hydraulic excavator. For example, a crane vehicle, a dump truck, or the like may be used.

Work machine 1 includes a work implement including boom 10, arm 11, and attachment 12, a revolving unit 13 on which the work implement is mounted, and a traveling body 14 that rotatably supports revolving unit 13.

A base end portion of boom 10 is swingably attached to a front portion of revolving unit 13. Boom 10 has a 1 st hydraulic cylinder 10a having both ends attached to boom 10 and revolving unit 13. Boom 10 swings with respect to revolving unit 13 by the telescopic operation of first hydraulic cylinder 10a 1.

A base end portion of arm 11 is swingably attached to a tip end portion of boom 10. Arm 11 has a 2 nd hydraulic cylinder 11a attached to arm 11 and boom 10 at both ends. Arm 11 swings with respect to boom 10 by the telescopic operation of second hydraulic cylinder 11 a.

Attachment 12 is swingably attached to a front end portion of arm 11. The attachment 12 has a 3 rd hydraulic cylinder 12a attached to the attachment 12 and the arm 11 at both ends. The attachment 12 swings with respect to the arm 11 by the telescopic operation of the 3 rd hydraulic cylinder 12 a.

In the present embodiment, a bucket is used as the attachment 12. However, the attachment 12 is not limited to a bucket, and may be another type of attachment (e.g., a crusher, a magnet, a fork, etc.).

The revolving unit 13 is configured to be able to revolve around a yaw (yaw) axis with respect to the traveling unit 14 by a revolving hydraulic motor (not shown). A cab 13a on which an operator rides is provided in a front portion of the revolving structure 13, and a machine room 13b is provided in a rear portion of the revolving structure 13.

A slave operation device 15 (see fig. 2) for operating the work machine 1 is disposed in the cab 13 a. The slave-side operation device 15 is, for example, an operation switch, an operation lever, a travel lever 1b, a left travel pedal 1c (left 1 st pedal), a right travel pedal 1d (right 1 st pedal), a left selection pedal 1e (left 2 nd pedal), a right selection pedal 1f (right 2 nd pedal), a work machine operation lever 1i (see fig. 4 to 6), and the like, which will be described later.

In the machine chamber 13b, hydraulic devices (not shown) such as a hydraulic pump, a directional switching valve, and a hydraulic oil tank, an engine (not shown) as a power source of the hydraulic pump, and the like are stored.

The traveling body 14 is a crawler-type traveling body and is driven by a traveling hydraulic motor (not shown). The traveling body of the work machine according to the present invention is not limited to a crawler belt. For example, the traveling body may be a traveling body that moves by wheels, or may be a leg-type traveling body. In the case where the working machine is a machine used on water, the traveling body may be a barge or the like.

The work machine 1 may further include an actuator other than the travel hydraulic motor, the turning hydraulic motor, the 1 st hydraulic cylinder 10a, the 2 nd hydraulic cylinder 11a, and the 3 rd hydraulic cylinder 12a (for example, a hydraulic actuator for driving a bulldozer, a hydraulic actuator included in an attachment such as a crusher, and the like). Further, a part of the actuators (for example, turning actuators) of the work machine 1 may be electric actuators.

When the work machine 1 is operated, the slave-side operation device 15 is operated with the engine being operated, and thereby the actuators such as the traveling hydraulic motor, the turning hydraulic motor, the 1 st hydraulic cylinder 10a, the 2 nd hydraulic cylinder 11a, and the 3 rd hydraulic cylinder 12a are operated. For example, the operation of each actuator corresponding to the operation of the slave operation device 15 may be performed in the same manner as in a known work machine.

As shown in fig. 2, the work machine 1 includes an electric operation driving device 16 (for example, a 1 st operating mechanism 3 and a 2 nd operating mechanism 4 (see fig. 4 and 5) described later) in the cab 13a for enabling remote operation.

The operation drive device 16 is connected to the slave operation device 15. The operation drive device 16 may be configured to be detachable from the work machine 1.

The operation drive device 16 includes a plurality of motors (specifically, a 1 st drive source 30, a 2 nd drive source 31, a 3 rd drive source 40, and a 4 th drive source 41 (see fig. 4 and 5), which will be described later).

The operation drive device 16 drives an operation switch and an operation lever included in the slave side operation device 15, and a travel lever 1b, a left travel pedal 1c, a right travel pedal 1d, a left selection pedal 1e, a right selection pedal 1f, and a work machine operation lever 1i (see fig. 4 to 6) described later, respectively, by drive force from these motors.

The work machine 1 further includes an operation state detector 17 for detecting an operation state of the work machine 1, an external sensor 18 such as a camera for detecting a state around the work machine 1, and a slave side control device 19 capable of executing various control processes.

The operating state detector 17 is, for example, a detector that detects the rotation angle of the swing operation of each of the boom 10, the arm 11, and the attachment 12 or the stroke length of the 1 st hydraulic cylinder 10a, the 2 nd hydraulic cylinder 11a, and the 3 rd hydraulic cylinder 12a, a detector that detects the swing angle of the revolving unit 13, a detector that detects the driving speed of the traveling unit 14, a detector that detects the inclination angle of the revolving unit 13 or the traveling unit 14, an inertial sensor that detects the angular velocity or the acceleration of the revolving unit 13, or the like.

The environment sensor 18 is constituted by, for example, a camera, a distance measuring sensor, a radar, or the like. Cameras and the like constituting the environment sensor 18 are provided at a plurality of places such as the peripheral edge portion of the revolving unit 13, and can detect an object existing around the revolving unit 13.

The slave-side controller 19 is constituted by 1 or more electronic circuit units including, for example, a microcomputer, a memory, an interface circuit, and the like. The detection signals of the operating state detector 17 and the external sensor 18 are appropriately acquired from the side control device 19.

The slave-side control device 19 has a function as the driving control unit 19a, a function as the peripheral object detection unit 19b, and a function as the slave-side communication unit 19c, as functions realized by one or both of the installed hardware configuration and the installed program (software configuration).

The driving control unit 19a controls the operation of the work machine 1 by performing operation control of the operation driving device 16 (or operation control of the slave operation device 15) and driving control of the engine in accordance with the operation of the slave operation device 15 or the operation command given from the remote operation device 2.

The peripheral object detection unit 19b detects an object such as a person or an installation object when the object is present in a predetermined target space around the work machine 1 based on a detection signal of the external sensor 18.

The slave communication unit 19c performs wireless communication with the remote operation device 2 via a master communication unit 27b described later as appropriate.

As shown in fig. 3, the remote operation device 2 includes, inside the remote operation room 20, a main-side seat 21 on which an operator sits, a pair of left and right main-side console boxes 22 disposed on the left and right of the main-side seat 21, a main-side operation device 23 operated by the operator to perform remote operation of the work machine 1, a speaker 24 as an output device for sound information (audible information), and a display 25 as an output device for display information (visual information).

Further, as shown in fig. 2, the remote operation device 2 is provided with an operation state detector 26 for detecting the operation state of the master-side operation device 23, and a master-side control device 27 that can perform various control processes. The master-side controller 27 may be disposed inside or outside the remote control room 20.

The master-side operation device 23 has the same or similar configuration as the slave-side operation device 15 of the work machine 1, for example.

Specifically, the main-side operation device 23 includes a pair of left and right 1 st operation levers 23b with a pair of left and right 1 st operation pedals 23a provided on the front side of the main-side seat 21, a pair of left and right 2 nd operation levers 23c mounted on the pair of left and right main-side console boxes 22, a pair of left and right 2 nd operation pedals (not shown) disposed on the side with the 1 st operation pedal 23a interposed therebetween, and the like, so that an operator seated on the main-side seat 21 can operate the operation.

However, the master-side operation device 23 may have a different configuration from the slave-side operation device 15 of the work machine 1. For example, the main-side operation device 23 may be a portable operation device having a joystick, an operation button, or the like.

The operation state detector 26 is, for example, a potentiometer, a contact switch, or the like incorporated in the main-side operation device 23. The operation state detector 26 is configured to output detection signals indicating operation states of the respective operation units (the 1 st operation pedal 23a, the 1 st operation lever 23b, the 2 nd operation lever 23c, the 2 nd operation pedal, and the like) of the main-side operation device 23.

The speakers 24 are disposed at a plurality of places inside the remote control room 20, such as the front, rear, and right and left sides of the remote control room 20.

The display 25 is configured by, for example, a liquid crystal display, a head-up display, or the like. The display 25 is disposed on the front side of the main side seat 21 so that an operator seated on the main side seat 21 can visually recognize it.

The main-side control device 27 is constituted by 1 or more electronic circuit units including, for example, a microcomputer, a memory, an interface circuit, and the like. The master-side control device 27 appropriately acquires the detection signal of the operation state detector 26. The main-side controller 27 recognizes an operation command to the work machine 1, which is specified by the operation state of the main-side operation device 23, based on the detection signal.

The master-side control device 27 has a function as the output information control unit 27a and a function as the master-side communication unit 27b as functions realized by one or both of the installed hardware configuration and the installed program (software configuration).

The output information control unit 27a controls the speaker 24 and the display 25.

The master-side communication unit 27b performs wireless communication with the work machine 1 via the slave-side communication unit 19c as appropriate. The master-side control device 27 transmits an operation command for the work machine 1 to the slave-side control device 19 by the wireless communication, or receives various information on the work machine 1 side (a captured image of a camera, detection information of an object around the work machine 1, detection information of an operation state of the work machine 1, and the like) from the slave-side control device 19.

Here, with reference to fig. 1 and 3 to 6, a mechanism provided in the cab 13a of the work machine 1 in the slave-side operation device 15 and operated when the operator directly operates the work machine 1 will be described.

As shown in fig. 1, the work machine 1 includes a traveling structure 14 and a revolving structure 13 rotatably provided above the traveling structure 14. Specifically, the upper frame 1a of the revolving unit 13 is rotatably supported by an under frame (not shown) of the traveling unit 14.

A cab 13a is provided on the front side of the top frame 1a, and a machine room 13b is provided on the rear side. A work implement including boom 10, arm 11, and attachment 12 is mounted on a side of cab 13 a.

As shown in fig. 4 and 5, the work machine 1 includes a pair of left and right travel levers 1b arranged substantially at the center in the left-right direction in a plan view on the upper frame 1a and at a position on the front side in the cab 13 a.

The work machine 1 further includes a left travel pedal 1c (1 st pedal) disposed on the left side of the travel lever 1b in a plan view, a right travel pedal 1d (1 st pedal) disposed on the right side of the travel lever 1b, a left selection pedal 1e (2 nd pedal) disposed on the left side of the left travel pedal 1c, and a right selection pedal 1f (2 nd pedal) disposed on the right side of the right travel pedal 1 d.

The pair of right and left travel levers 1b swing integrally with the corresponding left travel pedal 1c or right travel pedal 1 d. The pair of left and right travel levers 1b, left travel pedal 1c, and right travel pedal 1d are mechanisms for operating the left and right crawler belts of the traveling body 14 (see fig. 1), respectively. The operation of these crawler belts (i.e., the travel of work machine 1) is controlled in accordance with the inclination of corresponding travel lever 1b, or left travel pedal 1c or right travel pedal 1 d.

The left selector pedal 1e and the right selector pedal 1f are mechanisms for operating the accessories 12 (see fig. 1). In the case where the attachment 12 is a fork rake, for example, the rotation of the attachment 12 about the axis of the arm 11 is controlled in accordance with the falling of the left-side selection pedal 1 e. Further, the opening and closing of the fork rake is controlled according to the tilting of the right selection pedal 1 f.

When the operator gets on the work machine 1 and directly operates the work machine 1, the operator presses the pedal surfaces of the left travel pedal 1c, the right travel pedal 1d, the left selection pedal 1e, or the right selection pedal 1f to tilt the pedals in either the front-rear direction, thereby controlling the operation of the work machine and the operation of the traveling body 14.

The travel lever 1b corresponds to a pair of left and right 1 st operation levers 23b of the remote operation device 2, and the left travel pedal 1c and the right travel pedal 1d correspond to a pair of left and right 1 st operation pedals 23a of the remote operation device 2 (see fig. 3).

That is, the 1 st operating mechanism 3 and the 2 nd operating mechanism 4, which will be described later as one of the operation driving devices 16, tilt the travel lever 1b, the left travel pedal 1c, and the right travel pedal 1d based on the operation command from the remote operation device 2.

Specifically, the 1 st operating mechanism 3 and the 2 nd operating mechanism 4 tilt the travel lever 1b in response to tilting of the pair of left and right 1 st operating levers 23b of the remote operation device 2, and tilt the left travel pedal 1c and the right travel pedal 1d in response to tilting of the pair of left and right 1 st operating pedals 23a of the remote operation device 2.

The left selection pedal 1e and the right selection pedal 1f correspond to a pair of right and left 2 nd operation pedals (not shown) of the remote operation device 2.

That is, the 1 st operating mechanism 3 and the 2 nd operating mechanism 4, which will be described later as one of the operation driving devices 16, tilt the corresponding left selection pedal 1e and right selection pedal 1f based on an operation command from the remote operation device 2 (that is, based on tilting of the pair of left and right 2 nd operating pedals of the remote operation device 2).

As shown in fig. 6, the work machine 1 includes a slave seat 1g on which an operator sits, a pair of left and right slave console boxes 1h disposed on the left and right of the slave seat 1g, and a pair of left and right work machine operation levers 1i provided in the slave console boxes 1h, respectively, at a position on the top frame 1a and on the rear side of the interior of the cab 13 a.

Work implement control lever 1i is a mechanism for controlling a work implement (i.e., boom 10, arm 11, and attachment 12). The work machine is controlled to ascend, descend, turn, and enter/exit in accordance with the inclination of the work machine operation lever 1 i.

The pair of left and right work implement operating levers 1i correspond to the pair of left and right 2 nd operating levers 23c (see fig. 3) of the remote control device 2.

That is, a 3 rd operating mechanism (not shown) which is one of the operation drive devices 16 and which will be described later tilts the corresponding work implement operating lever 1i based on an operation command from the remote operation device 2 (that is, based on tilting of the 2 nd operating lever 23c of the remote operation device 2).

Next, the configuration of the 1 st operating mechanism 3 (operating mechanism for a work machine) and the 2 nd operating mechanism 4 (operating mechanism for a work machine), which are one of the operation drive devices 16, will be described in detail with reference to fig. 4 to 9. In fig. 7, for the sake of easy understanding, illustration of the 1 st wire 34c of the 1 st transmission mechanism 34 and the 2 nd wire 35c of the 2 nd transmission mechanism 35 is omitted.

As shown in fig. 4 and 5, the 1 st operating mechanism 3 includes a 1 st driving source 30 and a 2 nd driving source 31 that generate driving force, a 1 st driving mechanism 32 (1 st pedal driving mechanism) that operates the left travel pedal 1c, a 2 nd driving mechanism 33 (2 nd pedal driving mechanism) that operates the left selection pedal 1e, a 1 st transmission mechanism 34 that transmits the driving force from the 1 st driving source 30 to the 1 st driving mechanism 32, and a 2 nd transmission mechanism 35 that transmits the driving force from the 2 nd driving source 31 to the 2 nd driving mechanism 33.

The 1 st driving source 30 and the 2 nd driving source 31 are motors, and generate driving force based on an operation command from the remote operation device 2. The 1 st drive source 30 and the 2 nd drive source 31 are disposed below the side seat 1g (see fig. 6). This is because, in general, there are many cases where there is a space from below the side seat 1g (particularly, below the front portion of the seating portion).

The 1 st drive mechanism 32 is driven by the driving force from the 1 st drive source 30 to tilt the left travel pedal 1 c. The 1 st drive mechanism 32 is disposed adjacent to the left travel pedal 1c as the operation target.

As shown in fig. 7, the 1 st driving mechanism 32 includes a 1 st contact portion 32a that contacts the tread surface of the left running pedal 1c, and a 1 st driving portion 32b that tilts the 1 st contact portion 32a and tilts the left running pedal 1 c.

The 1 st contact portion 32a includes a 1 st rotating portion 32c pivotally supported by the 1 st driving portion 32b so as to be freely rotatable, a plate-shaped 1 st arm portion 32d which is detachably attached to the 1 st rotating portion 32c and extends in the front-rear direction, and a pair of front-rear 1 st plate-shaped portions 32e which extend from both front-rear end portions of the 1 st arm portion 32d toward the left travel pedal 1c side.

The 1 st rotating portion 32c is disposed on the left travel pedal 1c side of the 1 st driving portion 32 b. The 1 st rotating portion 32c is rotatably attached at its lower portion to a case 32f (described later) of the 1 st driving portion 32b about a tilting fulcrum c (see fig. 8) so that its upper portion can be tilted in a direction corresponding to the tilting direction of the left running pedal 1 c.

The 1 st arm portion 32d is detachably attached to an upper portion of the 1 st turning portion 32c by a bolt, a nut, or the like. The 1 st arm portion 32d can be attached by adjusting the height and the inclination angle thereof with respect to the 1 st rotating portion 32c within a predetermined range. Thus, the height and the inclination angle of the 1 st arm portion 32d with respect to the 1 st pivot portion 32c can be adjusted according to the shape of the left running pedal 1c as the operation target.

As shown in fig. 8, the 1 st driving portion 32b includes a rectangular parallelepiped case 32f erected on the 1 st connecting portion 36 described later, and a speed reducer 32g configured inside the case 32 f.

The housing 32f (i.e., the 1 st driving portion 32b) is disposed at a position laterally offset from the space in which the 1 st contact portion 32a moves (see fig. 7). Specifically, the 1 st driving portion 32b is disposed at a position shifted in the direction of the rotation center axis of the 1 st plate-like portion 32e from the space where the 1 st plate-like portion 32e of the 1 st contact portion 32a moves.

As shown in fig. 8, the speed reducer 32g includes a 1 st gear 32h and a 2 nd gear 32i disposed below the 1 st gear 32h and meshing with the 1 st gear 32h from below.

The 1 st gear 32h rotates integrally with a 1 st driven pulley 34b described later. The 1 st rotating portion 32c of the 1 st contact portion 32a is attached to the 2 nd gear 32 i. In a state where the 2 nd gear 32i is connected to the 1 st rotating portion 32c, the 2 nd gear 32i and the 1 st rotating portion 32c rotate integrally.

In the speed reducer 32g, a 1 st gear 32h and a 2 nd gear 32i are arranged in the vertical direction. This is because the 1 st driving unit 32b is downsized in the front-rear direction and the left-right direction. This suppresses the 1 st driving unit 32b from protruding into the ascending/descending passage, and thus the 1 st driving unit 32b suppresses the obstacle to the ascending/descending of the operator.

The reduction gear of the present invention is not limited to such a configuration, and may be configured using 3 or more gears or may be arranged side by side.

As shown in fig. 7, the 2 nd drive mechanism 33 is driven by the drive force from the 2 nd drive source 31 to tilt the left selection pedal 1 e. The 2 nd drive mechanism 33 is disposed adjacent to the left selector pedal 1e as the operation target.

Similarly to the 1 st drive mechanism 32, the 2 nd drive mechanism 33 includes a 2 nd contact portion 33a that contacts the tread surface of the left selector pedal 1e, and a 2 nd drive portion 33b that tilts the 2 nd contact portion 33a and tilts the left selector pedal 1 e.

The 2 nd contact portion 33a includes a 2 nd rotation portion 33c pivotally supported by the 2 nd drive portion 33b so as to be freely rotatable, a plate-like 2 nd arm portion 33d detachably attached to the 2 nd rotation portion 33c and extending in the front-rear direction, and a pair of front-rear 2 nd plate-like portions 33e extending from both front-rear end portions of the 2 nd arm portion 33d toward the left selection pedal 1e side.

The 2 nd rotating portion 33c is disposed on the left selection pedal 1e side of the 2 nd driving portion 33 b. The 2 nd rotating portion 33c is rotatably attached to the housing of the 2 nd driving portion 33b at a lower portion thereof about a predetermined tilting fulcrum so that an upper portion thereof can tilt in a direction corresponding to the tilting direction of the left selection pedal 1 e.

The 2 nd arm 33d is detachably attached to an upper portion of the 2 nd rotating portion 33c by a bolt, a nut, or the like. The 2 nd arm 33d can be attached by adjusting the height and the inclination angle thereof with respect to the 2 nd rotating portion 33c within a predetermined range. Thus, the height and the inclination angle of the 2 nd arm 33d with respect to the 2 nd turning part 33c can be adjusted according to the shape of the left selection pedal 1e as the operation target.

The 2 nd driving portion 33b is disposed at a position shifted in the direction of the rotation center axis of the 2 nd plate-like portion 33e from the space where the 2 nd plate-like portion 33e of the 2 nd abutting portion 33a moves.

In this way, in the 1 st operating mechanism 3, the 1 st contact portion 32a contacts the tread surface of the left running pedal 1 c. The left travel pedal 1c is pushed by the inclined 1 st contact portion 32a to incline. That is, even if the operator moves the 1 st contact portion 32a by stepping on it, the left travel pedal 1c can be tilted.

In the 1 st operating mechanism 3, the 2 nd contact portion 33a contacts with the pedal surface of the left selector pedal 1 e. The left selection pedal 1e is pressed by the 2 nd contact portion 33a to be tilted, and is tilted. That is, even when the operator moves the 2 nd contact portion 33a by stepping on it, the left selector pedal 1e can be tilted.

Thus, even in a state where the 1 st operating mechanism 3 is provided, the operator can depress the left running pedal 1c together with the 1 st contact portion 32a to operate the left running pedal 1 c. Even in a state where the 1 st operating mechanism 3 is provided, the operator can depress the left selection pedal 1e together with the 2 nd contact portion 33a to operate the left selection pedal 1 e.

In addition, in the 1 st operating mechanism 3, the 1 st contact portion 32a that contacts the left travel pedal 1c and the 1 st driving portion 32b that moves the 1 st contact portion 32a are disposed independently, and the 1 st driving portion 32b is disposed at a position laterally offset from the space in which the 1 st contact portion 32a moves. Thus, even when the operator operates the left travel pedal 1c in a state where the 1 st operating mechanism 3 is provided, the 1 st driving unit 32b is less likely to contact the foot of the operator.

In the 1 st operating mechanism 3, the 2 nd contact portion 33a that contacts the left selection pedal 1e and the 2 nd driving portion 33b that moves the 2 nd contact portion 33a are disposed independently, and the 2 nd driving portion 33b is disposed at a position laterally offset from the space in which the 2 nd contact portion 33a moves. Thus, even when the operator operates the left selection pedal 1e in a state where the 1 st operation mechanism 3 is provided, the 2 nd driving unit 33b is less likely to contact the foot of the operator.

Therefore, according to the 1 st operating mechanism 3, even in a state where the mechanism is provided, direct operation of the left travel pedal 1c and the left selection pedal 1e by the operator is less likely to be hindered by the 1 st contact portion 32a and the 2 nd contact portion 33a, and the 1 st driving portion 32b and the 2 nd driving portion 33 b.

In the present embodiment, the 1 st contact portion 32a is inclined about the inclination fulcrum c, and presses the left running pedal 1c to incline the left running pedal 1 c. Further, the 2 nd contact portion 33a tilts about a predetermined tilting fulcrum, thereby pressing the left selector pedal 1e to tilt the left selector pedal 1 e.

However, the operation of the contact portion of the present invention is not limited to such a configuration, and may be any movement that can press the pedal to be operated and tilt the pedal.

For example, the tilt fulcrum may be appropriately set according to the shape of the pedal as the operation target and the tilt method. In particular, when the tilt fulcrum is set so as to coincide with the pivot axis of the pedal to be operated, the tilt methods of the contact portion and the pedal become coincident, and therefore, the operator can be inhibited from feeling uncomfortable when the operator steps on the pedal together with the contact portion.

For example, the movement of the contact portion may be a forward and backward movement in the up-down direction, the front-back direction, or the left-right direction instead of the tilting (i.e., a rotation about a predetermined fulcrum).

In the present embodiment, the 1 st driving portion 32b is disposed at a position shifted in the direction of the rotation center axis of the 1 st plate-like portion 32e (i.e., in the left-right direction) from the space in which the 1 st plate-like portion 32e of the 1 st contact portion 32a moves. The 2 nd driving portion 33b is disposed at a position shifted in the direction of the rotation center axis of the 2 nd plate-like portion 33e (i.e., the left and right directions) from the space where the 2 nd plate-like portion 33e of the 2 nd contact portion 33a moves.

However, the present invention is not limited to such a configuration, and the driving portion may be disposed at a position laterally offset from the space in which the contact portion moves. For example, the contact portion may be disposed at a position shifted in either the front-rear direction or the up-down direction from the space in which the contact portion moves.

As shown in fig. 5, the 1 st transmission mechanism 34 includes a 1 st driving pulley 34a that rotates by the driving force from the 1 st driving source 30, a 1 st driven pulley 34b to which the driving force from the 1 st driving pulley 34a is transmitted, a 1 st wire 34c that transmits the driving force from the 1 st driving pulley 34a to the 1 st driven pulley 34b, a 1 st driving pulley cover 34d that covers the 1 st driving pulley 34a, and a 1 st driven pulley cover 34e that covers the 1 st driven pulley 34 b.

The 1 st drive pulley 34a is attached to a drive shaft of the 1 st drive source 30. Therefore, the 1 st drive pulley 34a rotates in accordance with the drive (i.e., the operation command) of the 1 st drive source 30.

The 1 st driven pulley 34b is attached to the 1 st gear 32h of the speed reducer 32g of the 1 st driving unit 32b of the 1 st driving mechanism 32, and rotates integrally with the 1 st gear 32 h. The driving force transmitted to the 1 st driven pulley 34b is transmitted to the 1 st contact portion 32a via the 1 st driving portion 32b, and rotates the 1 st contact portion 32 a.

As shown in fig. 9, the 1 st driven pulley cover 34e has an insertion hole 34f through which the 1 st wire 34c is inserted so as to be able to advance and retreat. The insertion hole 34f is open toward the top frame 1a side. Specifically, the insertion hole 34f opens downward at an angle of approximately 20 degrees with respect to a horizontal plane passing through the center of the 1 st driven pulley 34 b. The 1 st driving pulley cover 34d also has the same insertion hole as the 1 st driven pulley cover 34 e.

As shown in fig. 5, the 2 nd transmission mechanism 35 includes a 2 nd driving pulley 35a rotated by the driving force from the 2 nd driving source 31, a 2 nd driven pulley 35b to which the driving force from the 2 nd driving pulley 35a is transmitted, a 2 nd wire material 35c transmitting the driving force from the 2 nd driving pulley 35a to the 2 nd driven pulley 35b, a 2 nd driving pulley cover 35d covering the 2 nd driving pulley 35a, and a 2 nd driven pulley cover 35e covering the 2 nd driven pulley 35 b.

The 2 nd drive pulley 35a is attached to a drive shaft of the 2 nd drive source 31. Therefore, the 2 nd drive pulley 35a rotates in accordance with the drive (i.e., the operation command) of the 2 nd drive source 31.

The 2 nd driven pulley 35b is attached to the 2 nd driving portion 33b of the 2 nd driving mechanism 33. The driving force transmitted to the 2 nd driven pulley 35b is transmitted to the 2 nd contact portion 33a via the 2 nd driving portion 33b, and rotates the 2 nd contact portion 33 a.

The 2 nd driving pulley cover 35d and the 2 nd driven pulley cover 35e also have insertion holes that open downward, like the 1 st driving pulley cover 34d and the 1 st driven pulley cover 34 e.

In the work machine 1, as described above, the 1 st drive source 30 and the 2 nd drive source 31 of the 1 st operating mechanism 3 are disposed below the side seat 1g (i.e., behind the cab 13 a). The 1 st driving unit 32b and the 2 nd driving unit 33b of the 1 st operating mechanism 3 are disposed adjacent to the left travel pedal 1c and the left selector pedal 1e, which are the operation targets thereof (i.e., in front of the cab 13 a).

The space between the 1 st and 2 nd drive sources 30 and 31 and the 1 st and 2 nd drive units 32b and 33b is normally used as an ascending/descending passage or a space for the operator to temporarily place his feet when the operator directly operates the vehicle. Therefore, the 1 st wire rod 34c and the 2 nd wire rod 35c disposed in the space may interfere with the ascending and descending of the operator during the boarding and the operation directly performed by the operator.

Therefore, in the working machine 1, the insertion holes through which the wires are inserted in the 1 st driving pulley cover 34d, the 1 st driven pulley cover 34e, the 2 nd driving pulley cover 35d, and the 2 nd driven pulley cover 35e are opened downward (toward the top frame 1 a).

Thus, as shown in fig. 6, the wire passing through the insertion hole is guided to the top frame 1a side, and is arranged at an extremely low position in the space (specifically, close to the floor). Therefore, in the working machine 1, the wire rod prevents the operations of the operator such as the ascending and descending operations and the operation from being hindered by the wire rod during the ascending and descending operations and the direct operation operations.

Further, if the wire is disposed close to the floor, it is easy to provide a floor mat on the wire. Further, when the floor mat is provided in this manner, the wire material further prevents the operator from interfering with the operations such as the ascending and descending operations and the operation.

The transmission mechanism of the present invention is not limited to such a configuration, and may transmit the driving force from the driving source to the driving mechanism. For example, a mechanism other than the pulley and the wire rod may be used. Specifically, a link mechanism composed of a plurality of links may be used. Even if the pulley and the wire are used, the pulley cover may be omitted, or the insertion hole of the pulley cover may be opened to the outside of the housing side.

As shown in fig. 4 to 6, the 1 st operating mechanism 3 is configured as 1 unit by connecting the 1 st driving mechanism 32 and the 2 nd driving mechanism 33 via the 1 st connecting portion 36 formed by 1 flat plate. The position of the 1 st drive mechanism 32 and the position of the 2 nd drive mechanism 33 fixed by the 1 st coupling section 36 correspond to the position of the left travel pedal 1c and the position of the left selection pedal 1 e.

Thus, when the 1 st operating mechanism 3 is attached, if one of the 1 st driving mechanism 32 and the 2 nd driving mechanism 33 is set at a position corresponding to the corresponding left running pedal 1c or left selection pedal 1e, the other is also automatically set at a position corresponding to the corresponding left running pedal 1c or left selection pedal 1 e.

As described above, since the working machine 1 includes the 1 st coupling part 36, it is possible to omit a part of the positioning work and simplify the mounting work, and to reduce the number of steps for the mounting work.

Further, a 1 st positioning protrusion 37 protruding forward is provided at a front portion of an outermost side (left side in fig. 5) of the 1 st coupling part 36 in the left-right direction. When the 1 st coupling part 36 (or even the 1 st operating mechanism 3) is attached to the working machine 1, the 1 st positioning projection 37 is brought into contact with one of the pair of left and right frame side positioning projections 1j provided on the top frame 1a, whereby the 1 st operating mechanism 3 can be positioned.

The present invention is not limited to such a configuration, and the shape of the coupling portion and the presence or absence of the coupling portion may be appropriately changed.

For example, the 1 st coupling part 36 and the 2 nd coupling part 46 described later in the present embodiment may be integrated. Further, a coupling portion may be provided to integrate portions of the left and right travel pedals of the operation mechanism with each other, or a coupling portion may be provided to integrate portions of the left and right selection pedals of the operation mechanism with each other. Further, the positioning projection, and thus the coupling portion itself, may be omitted.

For example, the coupling portion is not limited to a flat plate shape, and may be a rack shape.

In the working machine 1 of the present embodiment, the 1 st driving source 30 and the 2 nd driving source 31, and the 3 rd driving source 40 and the 4 th driving source 41, which will be described later, are also connected by the driving source connecting portion 5 formed of 1 flat plate, and are configured as 1 unit. This also reduces the number of steps for mounting these drive sources.

As shown in fig. 5, in the 1 st operating mechanism 3, the 1 st driving source 30 and the 2 nd driving source 31 are disposed below the sub-side seat 1g provided behind the cab 13 a. On the other hand, the 1 st drive mechanism 32 and the 2 nd drive mechanism 33 are disposed on the sides of the left travel pedal 1c and the left selection pedal 1e (i.e., in front of the cab 13 a) which are the operation targets. That is, the 1 st driving source 30 and the 2 nd driving source 31 and the 1 st driving mechanism 32 and the 2 nd driving mechanism 33 are arranged apart in the front-rear direction.

In addition, in the work machine 1, as described above, the 1 st drive source 30 is independent of the 1 st drive mechanism 32 corresponding thereto, and the 2 nd drive source 31 is independent of the 2 nd drive mechanism 33 corresponding thereto.

With these configurations, in the working machine 1, the layout freedom when the 1 st operating mechanism 3 is provided is improved. Therefore, even if the installation location is a narrow space around the step, the installation location can be easily installed in the space. Even when the 1 st operating mechanism 3 is provided, a space around the left travel pedal 1c and the left selection pedal 1e of the work machine 1 can be sufficiently secured. Further, it is difficult to prevent direct operation of the pedal by the operator.

As shown in fig. 4 and 5, the 2 nd operating mechanism 4 includes a 3 rd driving source 40 and a 4 th driving source 41 that generate driving forces, a 3 rd driving mechanism 42 (1 st pedal driving mechanism) that operates the right travel pedal 1d, a 4 th driving mechanism 43 (2 nd pedal driving mechanism) that operates the right select pedal 1f, a 3 rd transmission mechanism 44 that transmits the driving force from the 3 rd driving source 40 to the 3 rd driving mechanism 42, and a 4 th transmission mechanism 45 that transmits the driving force from the 4 th driving source 41 to the 4 th driving mechanism 43.

The 2 nd operating mechanism 4 is constituted as 1 unit by connecting the 3 rd driving mechanism 42 and the 4 th driving mechanism 43 by a 2 nd connecting portion 46 formed by 1 flat plate. Further, a 2 nd positioning projection 47 projecting forward is provided at a front portion of an outermost side (a right side in fig. 5) in the left-right direction of the 2 nd coupling portion 46.

The components of the 2 nd operating mechanism 4 are substantially the same as those of the 1 st operating mechanism 3, except that they are reversed in the left-right direction on a vertical plane extending in the front-rear direction through the pair of travel levers 1 b. Therefore, the same effects as those of the 1 st operation mechanism 3 can be obtained even by the 2 nd operation mechanism 4.

Here, as shown in fig. 5, in the work machine 1, a left selection pedal 1e, a left travel pedal 1c, a right travel pedal 1d, and a right selection pedal 1f are arranged in order from the left side in a plan view on the pedals for operating the work machine 1.

Therefore, the drive mechanisms of the 1 st operating mechanism 3 and the 2 nd operating mechanism 4 are provided with a 2 nd drive mechanism 33 for operating the left selection pedal 1e, a 1 st drive mechanism 32 for operating the left travel pedal 1c, a 3 rd drive mechanism 42 for operating the right travel pedal 1d, and a 4 th drive mechanism 43 for operating the right selection pedal 1f, in this order from the left side in plan view.

In contrast, the 3 rd driving source 40 corresponding to the 3 rd driving mechanism 42, the 4 th driving source 41 corresponding to the 4 th driving mechanism 43, the 2 nd driving source 31 corresponding to the 2 nd driving mechanism 33, and the 1 st driving source 30 corresponding to the 1 st driving mechanism 32 are arranged in this order from the left side in the plan view of the driving sources of the 1 st operating mechanism 3 and the 2 nd operating mechanism 4. In addition, these drive sources are disposed apart from the step plate along the rear side in a plan view.

Therefore, as shown in fig. 5, the wire material of the transmission mechanism that transmits the driving force from the driving source to the driving mechanism in the 1 st operating mechanism 3 and the 2 nd operating mechanism 4 is disposed so as to intersect between the driving source and the driving mechanism.

Specifically, the 1 st wire 34c that transmits the driving force from the 1 st driving source 30 to the 1 st driving mechanism 32 and the 2 nd wire 35c that transmits the driving force from the 2 nd driving source 31 to the 2 nd driving mechanism 33 are arranged so as to intersect with the 3 rd wire 44a that transmits the driving force from the 3 rd driving source 40 to the 3 rd driving mechanism 42 and the 4 th wire 45a that transmits the driving force from the 4 th driving source 41 to the 4 th driving mechanism 43 at the central portion of the top frame 1 a.

By arranging the drive source and the drive mechanism in this manner, the distances between the drive source and the corresponding drive mechanism, that is, the lengths of the respective wire rods connected to the drive source and the corresponding drive mechanism can be made substantially uniform. This makes it possible to share the wire rods to be used, to facilitate the installation work, and to improve the productivity.

The arrangement relationship of the drive mechanism and the drive source in the present invention is not necessarily limited to such an arrangement relationship. For example, in the case where the lengths of the respective wire rods may be different from each other, the drive mechanism and the drive source may not be arranged symmetrically as in the present embodiment.

The embodiments shown in the drawings have been described above, but the present invention is not limited to such embodiments.

For example, in the above embodiment, the 1 st pedal drive mechanism is configured as a mechanism for operating a travel pedal, and the 2 nd pedal drive mechanism is configured as a mechanism for operating a selection pedal disposed adjacent to the travel pedal. However, the present invention is not limited to such a configuration, and may be configured to operate 2 pedals.

For example, one of the pair of left and right travel pedals may be operated by the 1 st pedal driving mechanism, and the other of the pair of left and right travel pedals may be operated by the 2 nd pedal driving mechanism.

In the above embodiment, the 1 st pedal drive mechanism for operating the travel pedal and the 2 nd pedal drive mechanism for operating the select pedal are both disposed at positions separated from their corresponding drive sources. However, the present invention is not limited to such a configuration, and at least one of the 1 st pedal drive mechanism and the 2 nd pedal drive mechanism may be disposed separately from the drive source.

For example, at least one of the 1 st pedal drive mechanism and the 2 nd pedal drive mechanism is disposed separately from the drive source corresponding thereto, and the drive source corresponding thereto is disposed adjacent to the other.

In the above embodiment, the 1 st contact portion 32a has the 1 st plate-like portion 32e, and the 2 nd contact portion 33a has the 2 nd plate-like portion 33 e. Also, the operator can step on the pedal together with the plate-like portions. However, the present invention is not limited to such a configuration, and the operator may step on the pedal together with the contact portion. For example, a rod-shaped portion may be provided instead of the plate-shaped portion.

Further, an operating mechanism for a working machine according to the present invention is a working machine operating mechanism for causing a pedal tip-down for controlling an operation of a working machine in accordance with the tip-down, based on an operation command, the operating mechanism comprising:

a drive source that generates a drive force based on the operation command;

a drive mechanism for tilting the step plate by a drive force from the drive source,

the drive mechanism includes: an abutting portion that abuts a pedal surface of the pedal, which is a surface on which an operator steps when operating the pedal; a drive unit that moves the contact portion to tilt the pedal,

the driving portion is disposed at a position laterally offset from a space in which the contact portion moves.

As described above, in the operating mechanism for a working machine according to the present invention, the contact portion is in contact with the step surface. Further, the pedal is pushed by the moving abutting portion and falls. That is, even if the operator moves the contact portion by stepping on it, the pedal can be tilted. Thus, even in a state where the operating mechanism is provided, the operator can step on the pedal together with the contact portion to operate the pedal.

In addition, in the operating mechanism for a working machine according to the present invention, the contact portion that contacts the pedal is disposed independently of the driving portion that moves the contact portion, and the driving portion is disposed at a position laterally offset from the space in which the contact portion moves. Thus, even in a state where the operating mechanism is provided, the drive unit is less likely to contact the foot of the operator when the operator operates the pedal.

Therefore, according to the operating mechanism for a working machine of the present invention, even in a state where the operating mechanism is provided, direct operation of the pedal by the operator is less likely to be hindered by the contact portion and the driving portion.

In the operating mechanism for a working machine according to the present invention, it is preferable that,

the driving part is provided with a speed reducer comprising a 1 st gear and a 2 nd gear,

the 1 st gear and the 2 nd gear are arranged in an up-down direction.

With this configuration, the dimension of the driving portion in the front-rear direction and the dimension in the left-right direction can be reduced, and the space for mounting the operation mechanism for the working machine can be saved. This makes it easy to secure a sufficient space around the pedal, and therefore, it becomes difficult to restrict the movement of the foot of the operator in the front-rear direction and the left-right direction. Further, it is difficult to prevent direct operation of the pedal by the operator. Further, the operation mechanism for the working machine can also prevent the operator from being hindered in riding and descending.

In the operating mechanism for a working machine according to the present invention, it is preferable that,

the pedals comprise a 1 st pedal and a 2 nd pedal,

the driving part comprises a 1 st driving part for enabling the 1 st pedal to incline and a 2 nd driving part for driving the 2 nd pedal,

the drive mechanism has a coupling portion for coupling the 1 st drive portion and the 2 nd drive portion.

Depending on the type of work machine, there may be a plurality of types of pedals (e.g., a travel pedal and a selection pedal). In such a case, when the driving portion is disposed on the side of the pedal as in the operation mechanism for a working machine according to the present invention, it is necessary to perform such an operation of positioning and attaching the operation mechanism with respect to each pedal. Therefore, when the plurality of driving portions are unitized by the coupling portion, the positioning work can be omitted to simplify the mounting work and reduce the number of man-hours for the mounting work.

In the work machine operation mechanism according to the present invention, it is preferable that the contact portion is plate-shaped corresponding to the tread surface.

With such a configuration, the operator can easily step on the travel pedal together with the contact portion.

The work machine according to the present invention is characterized by including any one of the above-described work machine operation mechanisms.

Description of the reference numerals

1 working machine

1a top frame (frame)

1b travel bar

1c left running pedal (left 1 st pedal)

1d Right running pedal (right 1 st pedal)

1e left side selection pedal (left side 2 nd pedal)

1f Right side selection pedal (right side 2 nd pedal)

1g from side seat

1h slave side console box

1i working machine operating lever

1j rack side positioning projection

2 remote operation device

3 the 1 st operating mechanism (operating mechanism for working machine)

4 the 2 nd operating device (operating device for working machine)

5 connecting part for driving source

10 swing arm

10a 1 st Hydraulic Cylinder

11 bucket rod

11a 2 nd hydraulic cylinder

12 Accessories

12a 3 rd hydraulic cylinder

13 revolving body

13a cab

13b machine room

14 traveling body

15 from the side operating device

16 operation driving device

17 action state detector

18 external sensor

19 slave side control device

19a drive control unit

19b peripheral object detecting section

19c slave communication unit

20 remote control room

21 main side seat

22 main side control cabinet

23 Main side operating device

23a 1 st operating pedal

23b 1 st operating lever

23c 2 nd operating lever

24 loudspeaker

25 display

26 operating state detector

27 main side control device

27a output information control unit

27b main side communication unit

30 st driving source

31 nd 2 nd driving source

32 the 1 st driving mechanism (the 1 st pedal driving mechanism)

32a 1 st abutting part

32b 1 st drive part

32c 1 st rotating part

32d No. 1 arm part

32e 1 st plate part

32f casing

32g speed reducer

32h 1 st Gear

32i 2 nd gear

33 the 2 nd driving mechanism (driving mechanism for the 2 nd pedal)

33a 2 nd abutting part

33b 2 nd drive part

33c 2 nd rotation part

33d 2 nd arm part

33e 2 nd plate-like part

34 1 st transmission mechanism

34a 1 st drive sheave

34b 1 st driven pulley

34c 1 st wire

34d 1 st drive pulley cover

34e 1 st driven pulley cover

34f insertion hole

35 nd 2 nd transmission mechanism

35a 2 nd drive pulley

35b 2 nd driven pulley

35c No. 2 wire rod

35d 2 nd drive pulley cover

35e 2 nd driven pulley cover

36 st connecting part

37 1 st positioning projection

40 3 rd driving source

41 th driving source

42 rd driving mechanism (driving mechanism for 1 st pedal)

43 No. 4 drive mechanism (drive mechanism for No. 2 pedal)

44 rd transmission mechanism

44a No. 3 wire rod

45 th transmission mechanism

45a 4 th wire material

46 2 nd connecting part

47 nd 2 positioning projection

S remote operation system

c tilting the fulcrum.