JPH0663262B2 - Vehicle fluid pressure operation pedal - Google Patents

Description

The present invention relates to a vehicle fluid pressure operation pedal used in, for example, a hydraulically driven vehicle.

[Prior Art] A fluid pressure operation pedal for a vehicle is used as a foot operation pedal in a hydraulically driven vehicle such as a shovel loader. In this case, the operating pedal controls the movement of the hydraulic drive body that applies an operating force to the operating arm that operates the shovel loader, and its installation position is fixed. Further, the operating posture of the driver is made by moving and adjusting the seat in the front-back direction according to the size of the body.

[Problems to be Solved by the Present Invention] The conventional vehicle fluid pressure operation pedal is not provided with a vertical height adjusting device for the operation pedal itself. Therefore, when multiple drivers with different physiques switch driving,
It has been difficult for each driver to obtain the position of the operation pedal that is suitable for his or her physique and is easy to drive.

[Means for Solving Problems] The present invention provides the following means in order to solve the above conventional problems.

That is, the vehicle fluid pressure operation pedal of the present invention includes a pedal portion having a foot tread that extends substantially parallel to the rotary shaft on one side of the rotary shaft and a drive arm that extends in the centrifugal direction of the rotary shaft on the other side. ,
A fixed portion that holds the pedal portion rotatably around the rotation shaft and is fixed to the vehicle body, a control valve for fluid pressure control that is fixed to the vehicle body, a valve operation portion of the control valve, and the pedal. A fluid pressure operation pedal for a vehicle, comprising: a connecting portion that connects the drive arm end portion of the vehicle portion, the fixed portion holds the pedal portion at one end thereof, and the other end thereof holds the connecting portion and the valve. At a position close to the engaging position of the portion, the one end of which is held by the vehicle body so as to be vertically swingable, and the one end of the swinging member which is held by the vehicle body and the one of the vehicle body. And a height adjusting member that adjusts the distance between them.

With this configuration, when a plurality of drivers take turns driving the hydraulically driven vehicle, each of them can arbitrarily adjust the height of the pedal portion in accordance with their physique.

The vehicle fluid pressure operation pedal according to the present invention includes a pedal portion, a fixed portion, a control valve, a connecting portion, a swinging member, and a height adjusting member as constituent elements.

Of the constituent elements, the pedal portion, the control valve, and the connecting portion can be basically the same as the conventional ones.

The features of the present invention are the fixed portion, the swinging member, and the height adjusting member.

The fixed portion includes a swing member and a height adjusting member.

The swing member holds the pedal portion at one end thereof, and the other end thereof is in a position close to the engaging position of the connecting portion and the valve operating portion, and the one end is swingable in the vertical direction. Held in. A thick metal plate can be used as the swing member.

The height adjusting member adjusts a distance between the one end of the swinging member held by the vehicle body and the vehicle body. By changing the position of the height adjusting member by a manual operation, a part of the swinging member engaged with the height adjusting member is moved in one of the upper and lower directions to adjust the height of the pedal portion. Is.

Further, the height adjusting member has a guide shaft protruding horizontally from the side surface of the swinging member, a vertical portion having an inclined guide hole for inserting and positioning the guide shaft, and a long hole for inserting the fixing bolt. And a bracket having an L-shaped cross section, which includes a horizontal portion having

The height adjusting member is rotatably held in the vertical direction and has a rotating shaft having a male screw, a female screw screwed to the male screw of the rotating shaft, and a guide shaft for inserting and locking a guide shaft formed on the swinging member. It can be configured with a moving member having a long hole.

In addition, the shaft portion of the pedal portion, the support shaft of the swinging member, the support shaft that connects the connecting portion and the drive arm of the pedal portion, and the support shaft that connects the connecting portion and the bracket to each other are provided at four shaft fulcrums The positional relationship may be arranged so as to form a substantially parallelogram. In this case, when adjusting the height of the pedal portion, the degree of change in the angle of the pedal is small.

The pedal portion is composed of a base portion having a tread surface and a driving arm, and a rod-shaped shaft portion that rotatably holds the base portion. When two fixing portions are provided at both ends of the shaft portion, The pedal portion can be stably operated by the two fixing portions.

The swinging member has a bracket portion fixed to the vehicle body, and when the swinging member is pivotally supported by the bracket portion, the swinging member can swing about the side supported by the bracket as a base point.

[Operation] According to the configuration of the vehicle fluid pressure operation pedal of the present invention, the swing member holding the pedal portion is moved up and down by adjusting the height adjusting portion, and the pedal portion of the swing member is moved. The one end side for fixing the shaft part of is rocked.

[Effect] With this, the pedal portion can be changed to an arbitrary height. Therefore, the height of the pedal portion for operating the control valve for controlling the hydraulic device in the hydraulically driven vehicle can be adapted to the size of the driving vehicle. And the work posture of the driver is not unreasonable, the pedal operation becomes easy, and when a plurality of drivers having different physiques drive alternately, the height of the pedal can be adjusted each time, It is convenient.

[First Embodiment] A first embodiment of the vehicle fluid pressure operation pedal of the present invention will be described with reference to FIG. The vehicle fluid pressure operating pedal according to the first embodiment includes a pedal portion 10, a control valve 20, a connecting portion 30, a fixing portion 40, a swinging member 50, and a height adjusting member 60 as constituent elements.

The pedal portion 10 is composed of a base portion and a rod-shaped shaft portion 112. The base portion is composed of a cylindrical rotary shaft 12 mounted on the outer periphery of the rod-shaped shaft portion 112, and vertical surfaces 113 and 114 extending vertically from both ends of the rotary shaft 12, and between the vertical surfaces 113 and 114. The foot surface 13 extends substantially parallel to the rotating shaft 12.
Further, a drive arm 14 extending in the centrifugal direction of the rotary shaft 12 is provided on the side opposite to the foot tread surface 13. Also, a rod-shaped shaft portion 112 that is located at the center of the rotating shaft 12 and holds the entire base portion in a rotatable manner.
Is fixed to one end 53 of a swinging member 50 described later. In the first embodiment, the rod-shaped shaft portion 112 is attached to the swing member 50.
Although the case where it is fixed to one end 53 is shown, it may be rotatably supported as another embodiment.

The control valve 20 performs hydraulic control for driving the hydraulic device. The valve operating portion 21 of the control valve 20 and the drive arm 14 of the pedal portion 10 are connected by supporting shafts 141 and 131.
It is connected to 30.

The connecting portion 30 transmits the operation amount of the pedal portion 10 to the control valve 20.

The fixed portion 40 includes a swinging member 50 and a height adjusting member 60. The oscillating member 50 is a thick plate-shaped member, and the rod-shaped shaft portion 112 of the pedal portion 20 is supported by one end portion 53 and the other end portion 52 is rotatably attached to a bracket 51 fixed to the vehicle body by a support shaft 521. Has been done. Further, the other end portion 52 is pivotally supported at a position close to the engagement position between the connecting portion 30 and the operating portion 21 of the control valve 20, and the one end portion 53 is vertically oriented around the support shaft 521. The bracket 51 is swingably supported by the bracket 51.
In addition, one end portion 53 of the swinging member 50 that can swing in the vertical direction,
A guide shaft 531 that engages with a height adjusting member 60 described later is formed. The guide shaft 531 corresponds to the pedal portion 1 of the swing member 50.
It projects horizontally on the side wall surface opposite to 0. The height adjusting member 60 has a vertical portion 62 having an inclined guide hole 621 through which the guide shaft 531 formed at one end 53 of the swing member 50 is inserted and positioned, and a long hole 611 through which the fixing bolt 612 is inserted and positioned. And a bracket having an L-shaped cross section, which is composed of a horizontal portion 61. The guide hole 621 is inclined so as to be higher in the left direction with respect to the drawing.

The operation of the embodiment configured as described above will be described.

According to the configuration of one embodiment, when the height of the pedal portion 10 is adjusted, the bolt 612 that fixes the horizontal portion 61 of the height adjusting member 60 to the vehicle body A is loosened to move the height adjusting member 60. The guide shaft 531 of the swinging member 50 is guided to the guide hole 621 by moving within the range of the long hole 611 and moving rightward in the drawing. Therefore, one end 5 of the swinging member 50 is a support shaft of the other end 52.
Swing upwards around 521. As a result, the pedal portion 10 fixed to the one end portion 53 of the swinging member 50 moves upward. Then, if the bolt 612 is tightened at a desired position, the pedal portion 10 can be held at a constant height.

[Second Embodiment] A second embodiment of the vehicle fluid pressure operation pedal of the present invention will be described with reference to FIG.

The vehicle fluid pressure operation pedal according to the second embodiment includes a pedal portion 1
0, control valve 20, connecting portion 30, fixed portion 40, swing member 50,
The height adjusting member 60 is a component.

The description of the configuration basically the same as that of the first embodiment is omitted.

In the case of the second embodiment, in addition to the configuration of the first embodiment, the shaft portion 112 of the pedal portion 10, the support shaft 521 of the swinging member 50, the connecting portion 30 and the drive arm 14 of the pedal portion 10 are connected. Support shaft 141 and connecting part 3
Support shaft 131 that connects 0 and the valve operating portion 21 of the control valve 20.
And the four axial fulcrums are arranged so as to form a substantially parallelogram.

According to the second embodiment configured in this way, the shaft 11
2, before adjusting the height of the pedal portion 10 when the height of the pedal portion 10 is adjusted by the height adjusting member 60 by the substantially parallelogram formed by the support shaft 521, the support shaft 141, and the support shaft 131. After the change, there is an effect that the degree of change in the angle of the pedal portion 10 is small.

[Third Embodiment] The third embodiment of the vehicle fluid pressure operation pedal of the present invention is the third embodiment.
A description will be given based on FIG. 4 and FIG.

The vehicle fluid pressure operation pedal according to the third embodiment includes a pedal portion 1
0, control valve 20, connecting portion 30, fixed portion 40, swing member 50,
The height adjusting member 60 is a component.

The description of the configuration basically the same as that of the first embodiment is omitted.

In the case of the third embodiment, the height adjusting member 60 is constructed as follows. That is, the height adjusting member 60 includes a rotating shaft 63 that is rotatably held in a vertical direction and has a male screw 631, a female screw 641 that is screwed to the male screw 631 of the rotating shaft 63, and a swing member.
It is configured with a moving member 65 having a guide elongated hole 651 through which a guide shaft 531 formed in 50 is inserted and locked. A lower end 632 of the rotating shaft 63 is rotatably attached to a part of the vehicle body A, and a handle portion 633 is formed at the upper end. Also, the rotating shaft 6
A support arm 634 engages with the upper part of 3 to hold the rotating shaft 63 rotatably.

According to the height adjusting member 60 of the third embodiment configured as described above, when the height adjusting member 60 adjusts the height of the pedal portion 10, the handle portion 633 is operated and the rotating shaft 63 is rotated. By doing so, the guide shaft 5 of the swinging member 50 is inserted into the guide elongated hole 651.
The moving member 65 having the 31 inserted and locked is a male screw of the rotary shaft 63.
It is guided and moved by 631. For example, when the rotating shaft 63 rotates clockwise, the moving member 65 moves upward, and when the rotating shaft 63 rotates counterclockwise, the moving member 65 moves downward. Thus, the swinging member 50 holding the pedal portion 10 swings around the support shaft 521, and the pedal portion 10 can be made to follow the moving direction of the moving member 65. As a result, the height of the pedal portion can be adjusted to a desired position by operating the handle 633 while sitting on the driver's seat.

[Brief description of drawings]

1, FIG. 2, FIG. 3, and FIG. 4 are explanatory views showing a vehicle fluid pressure operating pedal of the present invention. FIG. 1 is a perspective view showing a first embodiment, and FIG. FIG. 3 is a side view showing an embodiment, FIG. 3 is a side view showing a third embodiment, and FIG. 4 is a perspective view of a main part in FIG. 10 …… Pedal part, 20 …… Control valve, 30 …… Coupling part, 40
...... Fixing part, 50 ...... Swinging member, 60 ...... Height adjusting member

Claims (3)

[Claims] 1. A pedal unit having a foot surface extending on one side of a rotary shaft substantially parallel to the rotary shaft and a drive arm extending on the other side in a centrifugal direction of the rotary shaft, and the pedal unit including the pedal unit. A fixed portion that is rotatably held around the vehicle body and is fixed to the vehicle body, a control valve for fluid pressure control that is fixed to the vehicle body, a valve operating portion of the control valve, and the drive arm end portion of the pedal portion. A fluid pressure operation pedal for a vehicle, comprising: a connecting portion that connects the connecting portion and a valve portion, the fixing portion holds the pedal portion at one end thereof, and the other end is close to an engaging position of the connecting portion and the valve operating portion. At a position where the one end of the swing member is held by the vehicle body such that the one end can swing vertically, and a height for adjusting the distance between the one end of the swing member held by the vehicle body and the vehicle body. A fluid pressure operation pedal for a vehicle, comprising: a height adjusting member. 2. The pedal portion includes a base portion having a tread surface and a driving arm,
And a rod-shaped shaft portion that rotatably holds the base portion,
The vehicle fluid pressure operation pedal according to claim 1, wherein two fixing portions are provided at both ends of the shaft portion. 3. The fluid pressure operation pedal for a vehicle according to claim 1, wherein the swinging member has a bracket portion fixed to the vehicle body, and is pivotally supported by the bracket portion.