JPH07191773A - Operating pedal device adjustable forward and backward - Google Patents

Abstract

PURPOSE:To provide an operating pedal device in which the movement of a pedal at the time of forward/backward adjustment is smooth, and which is constituted simply and compactly, and in addition attains sufficient structural strength is obtained. CONSTITUTION:A stepping member 34 is connected to a rotary arm 26 fitted rotatably to a bracket 14 through a supporting shaft 16 through a pair of link members 30, 32, and when the link member 30 of one side is rotated around a connection pin 40 relatively to the rotary arm 26 by a forward/backward adjusting means 60, the stepping member 34 provided with the pedal pad 20 is moved in parallel to the longitudinal direction of a vehicle. The rod 24 of a brake booster 23 is connected to the link member 30, and since this connection part is adjusted as accompanying the rotation of the link member 30, a lever ratio L2a/L1a is kept nearly constant inspite of the forward/backward adjustment of the stepping member 34.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle operation pedal device such as a brake pedal and an accelerator pedal, and more particularly to an improvement of an operation pedal device capable of moving the position of a pedal pad in the vehicle front-rear direction. Is.

[0002]

2. Description of the Related Art A bracket fixed to a vehicle body is rotatably provided around a uniaxial center, and a pedal pad is depressed to rotate the pedestal from its original position to a uniaxial center so that a predetermined distance can be obtained. A vehicle operation pedal device for pressing or pulling an action member, such as a brake pedal or an accelerator pedal,
Although a clutch pedal is widely known, one of such vehicle operation pedal devices is proposed in which the position of the pedal pad can be moved in the front-rear direction of the vehicle. For example, JP-A-63-49528 (conventional example 1), JP-A-2-39214 (conventional example 2), JP-B-62-5700 (conventional example 3), JP-A-51-2.
The device described in Japanese Patent No. 2218 (Prior Art 4) is an example thereof, and according to such an operation pedal device, the position of the pedal pad is adjusted to an optimum position according to the body shape and preferences of the driver. Therefore, the driving operation becomes easy.

In the above-mentioned prior art examples 1 and 2, the pedal pad is moved in parallel along a pair of elongated holes.
The posture and height position of the pedal pad are maintained substantially constant, and by displacing the support portion of the bracket and the connecting portion of the operating member, which are the uniaxial center, with the forward and backward movement of the pedal pad, The ratio of the distance to the pedal pad to the distance from the uniaxial center to the connecting portion of the action member (hereinafter referred to as the lever ratio) is set to be substantially constant, and the required stepping force does not change even if the pedal pad is moved back and forth. It is like this. In the conventional example 3, the pedal pad is moved in parallel along the elongated hole, and the posture and height position of the pedal pad are maintained constant. Further, in Conventional Example 4, the entire operation pedal is moved in parallel using a parallel link, and the posture and height position of the pedal pad are maintained substantially constant, and at the time of stepping operation, a single link is used. The action member is pressed by rotating the lever member.

[0004]

However, in the conventional examples 1 and 2, the number of parts is large, the structure is complicated and large-scaled, and the assembly is troublesome and the cost is high. Although the conventional example 3 has a simple structure, it is locked by fitting the notch and the projection, so that the front-back adjustment is stepwise and the pedal pad sways up and down during the adjustment, and the adjustment cannot be performed smoothly. At the same time, since the lever ratio changes with the movement of the pedal pad, the required stepping operation force changes. In addition, in all of these conventional examples 1 to 3, since the pedal pad is moved in parallel along the elongated hole, a relatively large space is required in the front-rear direction, and twisting is likely to occur during movement, Since there is rattling in the engagement of the long holes, there is a problem that the feeling is deteriorated. On the other hand, in the conventional example 4 using the parallel link, the movement at the time of front-back adjustment is smooth, but the operation pedal is supported by one of the parallel links, and the operation force is transmitted through the other link and the lever member. Therefore, it is difficult to structurally obtain sufficient strength and rigidity. Further, since it is necessary to suppress the vertical movement of the pedal pad due to the forward / backward adjustment, the length of the parallel link cannot be shortened for the purpose of downsizing and strength increase, which requires a large space and makes it difficult to take strength measures.

The present invention has been made in view of the above circumstances. The object of the present invention is to provide a smooth movement during front-back adjustment, a simple and compact structure, and a structurally sufficient strength. An object is to provide an operation pedal device.

[0006]

In order to achieve such an object, a first aspect of the present invention is to provide a bracket fixed to a vehicle body so as to be rotatable about an axis, and a pedal pad is depressed. The operation pedal device is capable of moving the position of the pedal pad in the front-rear direction of the vehicle while pressing or pulling a predetermined acting member by being rotated from its original position around its one axis. And (a) a rotating arm that is attached to the bracket so as to be rotatable about the one axis, and (b) axes that are substantially parallel to the one axis at two positions separated from each other of the rotating arm. A pair of link members that are rotatably rotatable about the center and are connected to each other so as to extend downward, and (c) a figure that connects the lower connecting portion and the upper connecting portion of the pair of link members is a substantially parallelogram. So that While being rotatably connected around each of the shaft center approximately parallel to the axis to the lower connecting portion,
The stepping member provided with the pedal pad, and (d) one of the pair of link members and the rotating arm are arranged so as to straddle, and the pair of link members and the rotating arm are always provided. And a front-rear adjusting means for changing the position of the stepping member by integrally rotating one of the link members and the rotating arm at different connecting angles. The member is connected to the rotating arm or the link member so as to be rotatable about an axis substantially parallel to the one axis.

[0007]

In the operation pedal device capable of adjusting the front-rear direction, one of the pair of link members and the rotating arm is positioned at a predetermined connecting angle by the front-rear adjusting means. Since the link member, the rotating arm, and the stepping member are integrally rotated around the uniaxial center, structurally sufficient mechanical strength can be obtained. Further, if the connecting angle between the link member and the rotating arm is changed, the stepping member connected to the lower connecting portions of the pair of link members so that the connecting portions at the four locations form a substantially parallelogram will be the front and rear of the vehicle. The pedal pad can be adjusted in the front-rear direction while maintaining the posture and height position of the pedal pad substantially constant. In that case, since it is sufficient to rotate the pair of link members relative to the rotating arm, the position of the pedal pad can be adjusted without twisting as compared with the case where the pedal pad is moved back and forth through the elongated hole. The adjustment can be performed smoothly, and the space in the front-rear direction can be reduced, so that the device is simple and compact.

[0008]

A second aspect of the present invention is the operation pedal device according to the first aspect of the present invention, which is adjustable in the front-rear direction, regardless of a change in the connecting angle between the link member and the rotating arm. The action member is connected to a predetermined portion of one of the link members so that the above is substantially constant.

[0009]

That is, the action member is connected to a predetermined portion of the link member, and when the link member is rotated relative to the rotating arm when the pedal pad is adjusted back and forth, the action member is By changing the distance between the connecting portion and the uniaxial center, which is the center of rotation of the rotating arm, the lever ratio is maintained substantially constant regardless of the change in the distance from the uniaxial center to the pedal pad due to the front-back adjustment of the pedal pad. As a result, even if the pedal pad is adjusted back and forth, the required stepping operation force can be maintained substantially constant. Moreover, since the link member is rotated relative to the rotating arm when the pedal pad is adjusted back and forth, the action member is simply connected to a predetermined portion of the link member, so that the adjustment lever, the pivot pin, etc. In comparison with the prior art examples 1 and 2 in which the lever ratio is maintained substantially constant by using, the device is constructed very easily.

The lever ratio does not have to be completely constant, and when the distance between the pedal pad and the uniaxial center increases as the front and rear is adjusted, the distance between the connecting portion of the operating member and the uniaxial center increases. If the distance between the pedal pad and the uniaxial center becomes smaller as the front / rear adjustment is made, the distance between the connecting portion of the operating member and the uniaxial center will also become smaller, which will have a temporary effect. can get.

[0011]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a partially cutaway front view showing an example in which the present invention is applied to a vehicle brake pedal device 10 as an operation pedal device. The brake pedal device 10 includes a bracket 1 fixed to a vehicle body 12.
4 is rotatably arranged around the shaft center of the support shaft 16 via the support shaft 16, and is connected via the clevis 22 when the pedal pad 20 is depressed and rotated from the original position. The rod 24 of the brake booster 23 is pushed, and the push rod of the master cylinder (not shown) is pushed in to generate the brake hydraulic pressure. In this embodiment, the rod 24 of the brake booster 23 corresponds to the acting member, and the shaft center of the support shaft 16 corresponds to the uniaxial center. The support shaft 16 is attached to the bracket 14 in a posture in which its axis is substantially parallel to the width direction of the vehicle.

The brake pedal device 10 includes a rotating arm 26 mounted on the bracket 14 so as to be rotatable around the support shaft 16, and a state in which the rotating arm 26 is held at an original position defined by a stopper 28. A pair of link members 30, 32 that are respectively connected to two positions spaced apart in the front-rear direction of the vehicle, that is, the left-right direction of the drawing and extend downward in a substantially parallel manner, and a pair of link members 30, 32 that include the pedal pad 20. It is composed of a stepping member 34 connected to the lower end of the rotating arm 26,
A pair of link members 30, 32 and a stepping member 34
Form a four-bar rotation chain.

The rotating arm 26 is a pressed sheet metal product formed in a U-shaped cross section with respect to the longitudinal direction perpendicular to the support shaft 16, and is formed at right angles from the back portion 36 parallel to the support shaft 16. And the support shaft 16 penetrates through the pair of side surface portions 38, 38 bent in parallel with each other, and the pair of connecting pins 40, 4 is substantially parallel to the support shaft 16.
2 is penetrated. In the state of FIG. 1 in which the brake pedal device 10 is urged counterclockwise of the support shaft 16 by the urging force of the rod 24 urged in the direction of protruding from the brake booster 23, the outer peripheral side upper portion of the back portion 36 is urged. Is brought into contact with the stopper 28 fixed to the bracket 14, and this contact defines the counterclockwise rotating end of the support shaft 16 of the rotating arm 26, that is, the original position of the brake pedal device 10. It In this embodiment, the brake pedal device 10 is returned to the original position by the rod 24, but a return spring may be provided if necessary.

The upper connecting portions 44 and 46 of the pair of link members 30 and 32, which are connected to the rotating arm 26, respectively, are a pair of side surface portions 38 and 3 of the rotating arm 26.
The pair of connecting pins 40 and 42 are supported so as to be rotatable relative to each other around the axial center of the pair of connecting pins 40 and 42 while being separated from each other by a predetermined distance in the front-rear direction of the vehicle. The support shaft 1 is attached to the lower connecting portions 48 and 50 of the pair of link members 30 and 32.
6, the connecting pins 52 and 54 are inserted through the connecting members so that the stepping member 34 is relatively rotatably connected, and the length from the connecting pin 40 to the connecting pin 52 is from the connecting pin 42 to the connecting pin. The distance between the connecting pin 40 and the connecting pin 42 is substantially equal to the distance up to 54, and the distance between the connecting pin 52 and the connecting pin 54 is substantially equal. That is, the figure connecting the connecting points forms a substantially parallelogram or a rectangle, and the link members 30 and 32 have the rotating arm 26.
By being rotated relative to the stepping member 3
4 is moved substantially in the front-rear direction of the vehicle. This time,
Although the height of the stepping member 34 changes, in the state where the brake pedal device 10 is held in the original position, the link member 3
Since 0 and 32 are arranged so as to be substantially in the vertical direction and have a sufficient length, the height variation thereof is small.

One of the pair of link members 30 and 32,
Specifically, the left link member 30 located on the front side of the vehicle
The clevis 2 via a connecting pin 56 substantially parallel to the support shaft 16 at a predetermined portion above the connecting pin 40.
2 are connected so as to be rotatable relative to each other, and the link member 3 thereof
A clockwise moment of the connecting pin 40 is always applied to 0. Further, a front-back adjusting means 60 is disposed on the back portion 36 of the rotating arm 26, and is brought into contact with an engaging portion 58 protruding above the connecting pin 40 of the link member 30 to thereby link the link. A clockwise rotation end of the member 30 with respect to the rotation arm 26 is defined. A rightward moment acts on the link member 30 by the rod 24 of the brake booster 23, and the pedal pad 20
A right-handed moment acts even when the pedal is depressed, but the front-rear adjusting means 60 defines the right-handed turning end so that the turning arm 26 is always prevented from turning relative to the turning arm 26. When the pedal pad 20 is held, the pedal pad 20 is stepped on so that the pedal pad 20 is rotated clockwise around the support shaft 16 integrally with the rotation arm 26, and the rod 24 is pushed into the brake booster 23.

The front-rear adjusting means 60 is an electric motor 66 that is rotationally driven in both forward and reverse directions by operating a switch (not shown) provided in the driver's seat, and a spline fitting of the rotating shaft of the electric motor 66. A screw shaft 62 connected to the screw shaft 62 such that the screw shaft 62 is relatively movable in the axial direction and is not rotatable relative to the shaft center, and a nut 64 screwed to the screw shaft 62 and fixed to the inside of the back portion 38. Cage,
When the screw shaft 62 is rotated by the electric motor 66, the screw shaft 62 is driven to protrude in the axial direction and retract. The link member 30 has the screw shaft 6
The rotation end in the clockwise direction is defined by abutting on the tip of the screw 2, and the screw shaft 62 protrudes and is driven to be retracted so that the rotation arm 26 is relatively rotated around the connecting pin 40. It is rotated and the connection angle with respect to the rotating arm 26 is changed. When the connecting angle of the link member 30 is changed in this manner, the other link member 32 is also rotated around the connecting pin 42, and the stepping member 34 is translated in the front-rear direction of the vehicle, as shown in FIG. It is positioned at any position between the front end and the rear end shown in FIG. The front end and the rear end are determined by the retracted end position and the protruding end position of the screw shaft 62.

Here, when the stepping member 34 is moved back and forth, the distance L2 from the shaft center of the support shaft 16 to the pedal pad 20 changes, but with the change in the distance, the support shaft 1
6, the connecting portion of the rod 24, that is, the connecting pin 56
The distance L1 up to is also changed, and the lever ratio L2 / L1 hardly changes regardless of the movement of the stepping member 34. That is, the distance L2b when the stepping member 34 is located at the rear end is larger than the distance L2a when the stepping member 34 is located at the front end, but the distance L1 is larger than L1a than L1a. / L1a≈
The position of the connecting pin 56 is determined so as to be L2b / L1b. Specifically, the link member 30 is rotated around the connecting pin 40 as the stepping member 34 moves back and forth, and the distance L1 also changes accordingly.
The amount of change and the direction of change are the distance between the connecting pin 40 and the connecting pin 56 and the connecting pin 56 around the connecting pin 40.
The lever ratio L2a /
In this embodiment, the connection pin 40 is connected to the upper left position, that is, to the position deviated counterclockwise about the connection pin 40 from the line segment connecting the connection pin 40 and the support shaft 16 so that L1a≈L2b / L1b. Pins 56 are provided to provide rod 24
Was connected.

As described above, in the brake pedal device 10 of this embodiment, the front and rear adjusting means 60 position the one link member 30 and the rotating arm 26 at a predetermined connecting angle, so that the rotating arm 26, the pair of rotating arms 26 and the pair of rotating arms 26 can be connected. Link member 30
And 32, the stepping member 34 is integrally rotated around the support shaft 16, so that a structurally sufficient mechanical strength can be obtained as compared with the conventional example 4. In addition, if the connecting angle between the rotating arm 26 and the link member 30 is changed by the front-rear adjusting means 60 by operating a switch provided in the driver's seat,
The stepping member 34 is moved substantially parallel to the front-rear direction of the vehicle, and the front-rear position of the pedal pad 20 can be adjusted while maintaining the posture and height position of the pedal pad 20 substantially constant. In that case, since the pair of link members 30 and 32 need only be relatively rotated with respect to the rotating arm 26, comparison is made when the pedal pad is moved back and forth through the elongated holes as in the conventional examples 1 to 3. As a result, the position of the pedal pad 20 can be adjusted smoothly without causing any twisting, and the space in the front-rear direction can be reduced, so that the device is simple and compact.

Further, in the present embodiment, the rod 24 is connected to a predetermined portion of the link member 30 so that the distance can be increased when the link member 30 is rotated relative to the rotating arm 26 when the pedal pad 20 is adjusted back and forth. Distance L corresponding to changes in L2
The change of 1 allows the lever ratio L2 / L1 to be maintained substantially constant, so that the pedal pad 20
The required stepping force is maintained at a substantially constant level even when is adjusted back and forth. Moreover, since the link member 30 is rotated relative to the rotating arm 26 when the pedal pad 20 is adjusted in the front-rear direction, the rod 24 is simply connected to a predetermined portion of the link member 30. As compared with the case of using the adjusting lever, the pivot pin, or the like as in 1 and 2, the device is configured very easily.

Next, another embodiment of the present invention will be described. FIG. 3 shows the rod 24 and the link member 30 in the above embodiment.
2 shows a different form of connection with the rotation arm 76, which is rotatably arranged around the support shaft 16,
It is a pressed sheet metal product having substantially the same shape as the rotating arm 26, but has a pair of side surface portions 78, 78 projecting from a lower left portion of the figure than the pair of side surface portions 38, 38. A link member 80 having substantially the same outer peripheral shape as that of the link member 30 is connected to the rotating arm 76 via the connecting pin 40 so as to be relatively rotatable, and the link member 80 is connected via the connecting pin 42. The member 32 is connected so as to be relatively rotatable. The link member 80 has the engaging portion 58 similarly to the link member 30, and is engaged with the rotating arm 76 by the engagement with the screw shaft 62 of the front-back adjusting means 60 (not shown in FIG. 3). The connection angle of is changed. The stepping member 34 is connected to the lower ends of the link members 80 and 32, and the pedal pad 20 is adjusted back and forth by changing the connecting angle.

Connecting pin 56 for connecting the clevis 22
Is inserted into the clevis 22 through an elongated hole 82 provided at a predetermined portion of the link member 80. Slot 82
Are formed in a radial direction around the axis of the connecting pin 40, and the connecting pin 56 is relatively movable in the elongated hole 82 in the radial direction. On the other hand, the lower left projections 78a, 78a on the side surfaces 78, 78 of the rotating arm 76 are provided.
Is located inside the clevis 22 and outside the link member 80, and at the portion where the connecting pin 56 of the projecting portions 78a, 78a is located, the axis of the support shaft 16 is substantially perpendicular to the rod 24. A long hole 84 is formed in a radial direction centered on the center of the connecting pin 56. Therefore, when the link member 80 is rotated in the counterclockwise direction of the connecting pin 40 relative to the rotating arm 76 from the state of FIG. 3, the connecting pin 56 is guided to the elongated hole 84 as the elongated hole 82 rotates. While being moved, it is moved downward in FIG.

In this embodiment, the change characteristic of the distance L1 due to the relative rotation of the rotating arm 76 and the link member 80 can be arbitrarily set by the shape of the elongated holes 82 and 84, so that the pedal pad 20 can be adjusted back and forth. Despite this, it is possible to make the lever ratio L2 / L1 completely constant. Also,
It is also possible to prevent the amount of protrusion of the rod 24 from the brake booster 23 from changing regardless of the relative rotation of the rotating arm 76 and the link member 80, regardless of whether the pedal pad 20 is adjusted back and forth. The stroke can be kept constant.

The embodiment shown in FIG. 4 is an example in which the present invention is applied to a vehicle accelerator pedal device 90 as an operation pedal device, and is a bracket 92 fixed to a vehicle body 91.
Is rotatably arranged around the shaft center of the support shaft 94 via the support shaft 94. When the pedal pad 98 is depressed and rotated from the original position, the clevis 1
The throttle cable 102 connected via 00 is pulled out to open a throttle valve (not shown). In this embodiment, the throttle cable 1
02 corresponds to the acting member, and the shaft center of the support shaft 94 corresponds to the uniaxial center. The support shaft 94 is attached to the bracket 92 in a posture in which its axis is substantially parallel to the width direction of the vehicle.

The accelerator pedal device 90 includes a support shaft 9
The pivot arm 104 is rotatably attached to the bracket 92 so that the pivot arm 104 is spaced apart in the front-rear direction of the vehicle, that is, in the left-right direction in the figure in a state where the pivot arm 104 is held in the original position as shown in the figure. A pair of link members 106, 1 which are respectively connected to the positions and extend downward substantially in parallel.
08 and the stepping member 11 including the pedal pad 98 and connected to the lower end portions of the pair of link members 106 and 108.
0, etc., and these rotating arms 104,
The pair of link members 106, 108 and the stepping member 1
10 forms a four-bar rotation chain. Rotating arm 10
Reference numeral 4 denotes a sheet metal press product which is formed so that a cross-section in the longitudinal direction perpendicular to the support shaft 94 has a U-shape, and is bent from the back 112 parallel to the support shaft 94 at right angles and parallel to each other. A pair of side surfaces 114, 11 formed
4 is penetrated by a support shaft 94, and a pair of connecting pins 116, 118 which are substantially parallel to the support shaft 94 are penetrated at the two positions.

The upper connecting portions 120 and 122 of the pair of link members 106 and 108, which are connected to the rotating arm 104, are sandwiched between the pair of side surface portions 114 and 114 of the rotating arm 104. The pair of connecting pins 11 are separated from each other by a predetermined distance in the front-rear direction of the vehicle.
6, 118 are supported so as to be rotatable relative to each other around the axis. The lower connecting portion 12 of the pair of link members 106 and 108
The connecting pins 12 and 4 are provided substantially parallel to the support shaft 94.
8 and 130 are inserted to connect the stepping member 110 so as to be rotatable relative to each other, and the length from the connecting pin 116 to the connecting pin 128 is the same as the length from the connecting pin 118 to the connecting pin 130. Almost equal, connecting pin 1
The distance between 16 and the connecting pin 118 is substantially equal to the distance between the connecting pin 128 and the connecting pin 130. That is, the figure connecting the connecting points forms a substantially parallelogram or a rectangle, and the link members 106 and 108 are the rotating arms 104.
By being rotated relative to the stepping member 1
Numeral 10 is moved substantially in the front-rear direction of the vehicle. At this time, although the height of the stepping member 110 changes, the link members 106 and 108 are arranged so as to be substantially in the vertical direction when the accelerator pedal device 90 is held in the original position, and they are sufficiently long. Since it has a height, its height variation is small.

At the intermediate position between the support shaft 94 of the rotating arm 104 and the connecting pin 116, a front / rear adjusting means 132 having the same structure as the front / rear adjusting means 60 is disposed and abuts against the link member 106. Connection pin 1 of the link member 106
The rotation end of 16 in the clockwise direction is defined. As a result, when the pedal pad 98 is stepped on, the link member 106 and the rotating arm 104 are integrally rotated clockwise around the support shaft 94. Also, the link member 1
The clevis 100 is rotatably connected to the projecting portion 134, which is provided so as to project above the connecting pin 116, via a connecting pin 136 substantially parallel to the support shaft 94. Moving arm 104 and bracket 92
A return spring 138 such as a tension coil spring is provided between the rotation arm 104 and the rotation arm 104 and always urges the rotation arm 104 to the left of the support shaft 94.
4 and the link member 106 are held in the original position in which the clevis 100 contacts the bracket 92 and the link member 106 contacts the front-rear adjusting means 132.

On the other hand, when a switch (not shown) provided in the driver's seat is operated and the link member 106 is rotated relative to the rotating arm 104 counterclockwise by the connecting arm 116 by the front-rear adjusting means 132, the other Link member 1
08 is also relatively rotated counterclockwise of the connecting pin 118, so that the stepping member 110 is moved substantially parallel to the vehicle rear side which is the right direction in the drawing, and the front end shown in FIG.
It is positioned at any position between the rear end shown in FIG. As a result, the position of the pedal pad 98 in the vehicle front-rear direction is adjusted, but in this embodiment as well, the position of the connecting portion of the throttle cable 102, that is, the connecting pin 136 is displaced as the link member 106 rotates. The lever ratio is maintained substantially constant regardless of the front / rear adjustment of the pedal pad 98, and the stepping operation force is hardly changed. In this example, clevis 1
Since the position of 00 is defined by the bracket 92,
When the link member 106 is rotated relative to the rotating arm 104, the rotating arm 104 is also rotated around the support shaft 94 accordingly, but as shown in FIG. If the clevis 142 having a hook shape is connected to the link member 140, which replaces the link member 106, through the connecting pin 136 at the right lateral position, the rotation arm 104 associated with the relative rotation of the link member 140 is moved. Rotation can be suppressed.

Although the embodiments of the present invention have been described in detail with reference to the drawings, the present invention can be implemented in other modes.

For example, in the above-described embodiment, the front link members 30, 80, 106 to which the rod 24 as the operating member and the throttle cable 102 are connected are the front-back adjusting means 6.
However, the link member that connects the action members and the link member that is rotated and positioned by the front-rear adjusting means do not necessarily have to be the same. Link members 32, 10
8, an action member is connected, and front and rear adjusting means 60, 132
Alternatively, the link members 32 and 108 may be rotated and positioned. It is also possible to connect the rod 24 and the throttle cable 102 to the rotating arms 26, 76, 104.

Further, in the above-mentioned embodiment, the pair of link members are arranged so as to be separated from each other in the front-rear direction of the vehicle. However, it is possible to dispose them in a state of being displaced in the vertical direction. If the connecting figures are arranged so as to form a substantially parallelogram or a rectangle, the arrangement positions of both link members can be set arbitrarily.

Further, the front-back adjusting means 60, 1 of the above embodiment
32, the pad position can be changed automatically and continuously by using the electric motor 66 and the screw shaft 62, but the link members 30, 80, 106 are connected to the connecting pins 40, 1.
In addition to providing meshing teeth in an arc shape centering on 16,
A rack or a gear that meshes with the meshing teeth is attached to the rotating arm 26,
76, 104, the rack may be moved linearly or the gears may be rotationally driven by an electric motor to change the connection angle. Alternatively, the driver may manually operate the link members 30, 80. , 106 may be integrally fixed to the rotating arms 26, 76, 104 with bolts or nuts by changing the connection angle of the link members, and the front-rear adjusting means can position the link member at at least different connection angles. Anything is fine. The front-rear adjusting means may be disposed on the link member side, or both ends of expansion and contraction may be connected to both the rotating arm and the link member so as to be relatively rotatable.

Further, the accelerator pedal device 9 of the above embodiment
Although the throttle cable 102 is connected to 0, the present invention can be applied to an accelerator pedal device that transmits an accelerator operation amount by a link or the like, and can be applied to other operation pedal devices such as a clutch pedal device. You can also do it.

Although not illustrated one by one, the present invention can be carried out in various modified and improved modes based on the knowledge of those skilled in the art.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view showing an embodiment in which the present invention is applied to a vehicle brake pedal device.

2 is a front view showing a state where a pedal pad of the brake pedal device of FIG. 1 is moved to the rear side of the vehicle.

FIG. 3 is a view for explaining an embodiment in which the connection mode between the rod and the link member is changed in the brake pedal device of FIG.

FIG. 4 is a partially cutaway front view showing an embodiment in which the present invention is applied to a vehicle accelerator pedal device.

5 is a front view showing a state where a pedal pad of the accelerator pedal device of FIG. 4 is moved to the rear side of the vehicle.

FIG. 6 is a view for explaining another mode in which the connection form between the throttle cable and the link member is changed in the accelerator pedal device of FIG.

[Explanation of symbols]

10: Brake pedal device (operation pedal device) 14, 92: Bracket 20, 98: Pedal pad 24: Rod (action member) 26, 76, 104: Rotating arm 30, 32, 80, 106, 108, 140: Link Member 34, 110: Stepping member 44, 46, 120, 122: Upper side connecting part 48, 50, 124, 126: Lower side connecting part 60, 132: Front-rear adjusting means 90: Accelerator pedal device (operation pedal device) 102: Throttle Cable (working member)

Claims (2)

[Claims] 1. A bracket fixed to a vehicle body is rotatably provided around a uniaxial center, and a pedal pad is depressed to be rotated around the uniaxial center from a predetermined position. An operation pedal device capable of moving the position of the pedal pad in the front-rear direction of the vehicle while pressing or pulling the action member, the rotation being attached to the bracket so as to be rotatable about the one axis. An arm and a pair of link members that extend downward with an upper connecting portion connected to two positions of the rotating arm that are spaced apart from each other so as to be rotatable about an axis substantially parallel to the one axis. So that the figure connecting the lower connecting part and the upper connecting part of the link member forms a substantially parallelogram, and is rotatably connected to the lower connecting part about an axis substantially parallel to the one axis. As well as The stepping member provided with the pedal pad, the one of the pair of link members, and the rotating arm are arranged so as to straddle, and the pair of link members and the rotating arm are always integrated. The front and rear adjusting means for changing the position of the stepping member by rotating the one arm around the one axis and positioning the one link member and the rotating arm at different connection angles. An operation pedal device capable of adjusting the front-rear direction, which is connected to the rotating arm or the link member so as to be rotatable about an axis substantially parallel to the one axis. 2. The action member, regardless of a change in a connection angle between the link member and the rotating arm, a distance from the one axis center to the pedal pad and a connection of the action member from the one axis center. The front-back adjustable operation pedal device according to claim 1, wherein the operation pedal device is connected to any one of predetermined predetermined portions of the link member so that a ratio of the distance to the portion is substantially constant.