JP3419892B2 - Operation pedal device adjustable back and forth - Google Patents

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 arranged around a first axis, and a pedal pad is depressed to rotate from a home position around the first axis. A vehicle operation pedal device that presses or pulls a predetermined action member, such as a brake pedal, an accelerator pedal, and a clutch pedal, is widely known. One type of such vehicle operation pedal device is the position of the pedal pad. It is proposed that the vehicle can be moved in the front-rear direction. For example, the device described in Japanese Utility Model Publication No. 52-44985 is an example thereof. (A) A rotating member attached to a bracket so as to be rotatable about a first axis and to which an operating member is connected, b) a pedal arm rotatably connected to the rotating member about a second axis substantially parallel to the first axis and having a pedal pad at the lower end, and (c) the rotating member. A ratchet provided and a pole attached to the pedal arm so as to mesh with the ratchet are provided, and the pedal arm and the rotating member are always integrally rotated around the first axis, and And a ratchet mechanism for changing the position of the pedal pad by positioning the pedal arm and the rotating member at different connection angles. According to such an operation pedal device, the position of the pedal pad can be adjusted to an optimum position according to the body shape and preferences of the driver, so that the driving operation becomes easy.

[0003]

However, in the conventional operation pedal device capable of adjusting the front-back direction, the linear distance from the pedal pad to the first axis changes with the front-back adjustment of the pedal pad. Since the linear distance from the first axis to the connecting position of the action member is constant regardless of the longitudinal adjustment, the linear distance from the first axis to the pedal pad and the first
It is said that the ratio of the linear distance from the shaft center to the connecting position of the action member (hereinafter referred to as the lever ratio) changes with the forward / backward adjustment of the pedal pad, and the operating force required for the stepping operation changes with the forward / backward adjustment. There was a problem. Further, since the ratchet mechanism is used, the pedal pad can be locked only in a stepwise manner, and there is a risk that the pedal pad will be unlocked during a stepping operation.

Incidentally, Japanese Patent Laid-Open No. 2-39214 discloses that
The pedal shaft is continuously translated in the horizontal direction with respect to the rotating member by the screw shaft, and the connecting position of the action member with respect to the rotating member is displaced by the adjusting lever according to the movement, so that the lever ratio is substantially constant. Although the operation pedal device that is designed to be maintained is described, the structure for moving the pedal arm in parallel and changing the connecting position of the action member in accordance with the parallel movement is extremely complicated and the number of parts is large, resulting in high cost. It is not always practical.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a front / rear adjustable operation pedal device having a structure in which a pedal arm is rotatably connected to a rotating member. In order to maintain the lever ratio substantially constant with a simple structure having a small number of parts. Another object is to continuously rotate the pedal arm with respect to the rotating member so that the pedal arm can be reliably positioned.

[0006]

In order to achieve such an object, the present invention provides a bracket fixed to a vehicle body so as to be rotatable about a first axis, and a pedal pad is depressed to cause an original movement. An operation pedal device capable of moving a position of the pedal pad in the front-rear direction of the vehicle while being pressed or pulled by a predetermined acting member by being rotated from the position around the first axis. , (A) is attached to the bracket so as to be rotatable around the first axis, and is long so as to approach and separate from the first axis and intersect the pressing and pulling directions of the acting member. A rotation member having a hole formed therein, and the action member engaged with the elongated hole so as to be relatively movable; and (b) a rotation member around the second shaft center substantially parallel to the first shaft center. Movably connected and A pedal arm provided with a pedal pad, and (c) the pedal arm and the rotating member are arranged so as to straddle over the pedal arm, and the pedal arm and the rotating member are always integrated into the first shaft. The pedal pad is rotated about the second axis in a predetermined rotation range including a position directly below the second axis while the rotation member is rotated in the original position while being rotated about the center. Front and rear adjusting means for positioning the pedal arm and the rotating member at different connection angles so as to rotate, and changing the position of the pedal pad in the vehicle front-rear direction; and (d) the acting member and the pedal arm. The first member is arranged straddlingly, and the engaging position of the acting member with respect to the elongated hole of the rotating member is changed in accordance with a change in a connection angle between the rotating member and the pedal arm thereof. From the axis The ratio of the linear distance to Le Pad and linear distance to the engaged position of the first axial center working member, that is characterized by having an adjusting link member for maintaining the lever ratio substantially constant.

The forward / backward adjusting means is preferably provided on one and the other of the rotating member and the pedal arm so as to be rotatable about an axis substantially parallel to the second axis, and to each other. It is configured to have a screw shaft and a nut member that are screwed together.

[0008]

In such an operation pedal device capable of adjusting the front and rear, the pedal arm and the rotating member are positioned at different connecting angles by the front and rear adjusting means while the rotating member is held at the original position. Then, the pedal pad provided on the pedal arm is rotated about the second axis and moved in the front-rear direction of the vehicle. In that case, the acting member that is pressed or pulled by the stepping operation is engaged with the elongated hole formed in the rotating member and is also connected to the pedal arm through the adjustment link member. The lever position is maintained substantially constant by changing the engagement position with respect to the elongated hole as the connecting angle of is changed, which is necessary regardless of the front-back adjustment of the pedal pad. The stepping force is maintained substantially constant. Moreover, in the present invention, it is only necessary to form the elongated hole in the rotating member, engage the acting member in the elongated hole, and connect the acting member and the pedal arm by the adjustment link member, so that the number of parts is small. The device can be constructed very simply and inexpensively. The lever ratio does not have to be completely constant, and when the linear distance between the pedal pad and the first shaft center increases as the front and rear is adjusted, the engagement position of the acting member and the first shaft center are When the linear distance also increases and the linear distance between the pedal pad and the first axis decreases with adjustment of the front and rear, the linear distance between the engaging position of the acting member and the first axis also decreases. If you do, you can get a temporary effect.

Further, according to the present invention, since it is sufficient to rotate the pedal arm relative to the rotating member, Japanese Patent Laid-Open No. 2-39.
Compared to the case where the pedal arm is moved in parallel like the device described in Japanese Patent Publication No. 214, the pedal pad can be moved smoothly, and the device can be configured simply and compactly. Since the position of the pedal pad is moved back and forth by rotating the pedal arm, it is unavoidable that the height of the pedal pad fluctuates.
Since the pedal pad is rotated within a predetermined rotation range including the position directly below the second axis, the change in height of the pedal pad due to the front-rear adjustment is relatively small, and the change in the stepping operability resulting from the front-rear adjustment. Less is.

On the other hand, front-rear adjusting means is provided on one and the other of the rotating member and the pedal arm so as to be rotatable about an axis substantially parallel to the second axis, and screwed to each other. When configured with a nut member, the connection angle between the rotating member and the pedal arm can be continuously changed by rotating the screw shaft and the nut member relative to each other, and the connection angle can be ensured at any connection angle. It can be positioned and the front and rear position of the pedal pad can be adjusted steplessly. Further, by disposing the front-rear adjusting means near the second axis, the pedal pad can be largely moved with a small driving stroke, while the front-rear adjusting means rotates the pedal arm relative to the rotating member. Since it suffices to be able to move it, it is not always necessary to dispose it in the front-rear direction of the vehicle, the degree of freedom in designing the disposition form is high, and the drive stroke can be shortened, so that the disposition space in the front-rear direction of the vehicle is reduced. Can be made smaller.

[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 is of a type in which a pedal body that is rotated by a driver's stepping operation is composed of two divided members, and a support shaft 16 is attached to a bracket 14 fixed to a vehicle body 12. Through the axis O _{1 of the} support shaft 16
A rotary member 18 that is rotatably arranged around the rotary member 18, and an axis O _{2 of the} rotary shaft 20 that is parallel to the support shaft 16 on the rotary member 18.
Pedal arm 2 attached so as to be capable of relative rotation around
2 and. A pedal pad 24 is provided at the tip extending downward of the pedal arm 22, and the support shaft 16 is attached to the bracket 14 in a posture in which the axis O _{1 of} the support shaft 16 is substantially parallel to the width direction of the vehicle. Has become.

The rotating member 18 has a substantially L shape,
Brake booster 2 via clevis 26 at one end
8 rod 30 is connected, while the other end is forward
Connected to the pedal arm 22 via rear adjustment means 32
There is. With this front-back adjusting means 32, the pedal arm 22 and
Shaft center O with rotating member 18₂The connection angle around is
When it is placed and the pedal pad 24 is depressed,
The rotating member 18 is shown integrally with the pedal arm 22 in FIG.
It is rotated clockwise from the original position to the support shaft 16,
Push the rod 30 to push the master cylinder (not shown).
Push the shoe rod to generate brake hydraulic pressure.
In this embodiment, the rod 30 of the brake booster 28 acts.
The support shaft 16 and the rotation shaft 20 correspond to the members.
Axis O ₁, O₂Respectively on the first axis and the second axis
Equivalent to.

The rotating member 18 is urged to rotate counterclockwise of the support shaft 16 by the urging force of the rod 30 which is urged in the direction of protruding from the brake booster 28, and the other end thereof. Abutment portion 34 fixed to the upper surface of the side
Is brought into contact with a stopper 36 fixed to the bracket 14 to define the counterclockwise rotating end of the support shaft 16 of the rotating member 18, that is, the original position. Thus, in this embodiment, the rotating member 1 is driven by the urging force of the rod 30.
The return spring 8 can be returned to the original position, but a return spring can be arranged between the bracket 14 and the rotating member 18 or the pedal arm 22 as required.

The forward / backward adjusting means 32 is an electric motor 40 mounted on the rotating member 18 so as to be rotatable about a pin 38 parallel to the rotating shaft 20 in a posture in which the axis of the pin 38 is orthogonal to the rotating member 20. A screw shaft 42 provided integrally with the output shaft of the electric motor 40, and screwed with the screw shaft 42 so that the pedal arm 22 is rotatable about an axis parallel to the rotation shaft 20 and the screw shaft 42. 1 and a nut member 44 mounted non-rotatably around the axis thereof, and is arranged in the substantially vertical direction in the vicinity of the rotating shaft 20 as is apparent from FIG. The screw shaft 42 and the nut member 4
As long as the electric motor 40 is stopped, the distance between the connecting points of both the rotating member 18 and the pedal arm 22, that is, the length from the pin 38 to the nut member 44 is maintained constant by screwing with the electric motor 40. Rotating member 18 and pedal arm 22
When the pedal pad 24 is depressed by fixing the connection angle around the axis O ₂ with the pedal arm 2
2 and the rotating member 18 are integrally rotated around the support shaft 16.

On the other hand, the electric motor 40 is rotationally driven in both forward and reverse directions by operating a switch (not shown) arranged near the driver's seat, and the nut member is provided along the screw shaft 42. By the reciprocating movement of 44, the pedal arm 22 is relatively rotated around the rotation shaft 20 with respect to the rotation member 18, and the connection angle thereof is changed. FIG. 1 shows a connection state in which the pedal arm 22 is rotated relative to the rotation member 18 rightmost to the rotation shaft 20, and FIG. 2 is a connection state rotated relatively to the left. There is. When the connecting angle between the rotating member 18 and the pedal arm 22 is arbitrarily changed and positioned as described above, the pedal pad 24 is moved in the front-rear direction of the vehicle, and the front end shown in FIG. 1 and FIG. It is continuously moved and adjusted to any position between the rear end. The rotation range around the axis O ₂ of the pedal pad 24 in the state where the rotation member 18 is held in the original position is rotated about the same position in the vehicle front-rear direction about the position directly below the axis O _2. The height variation of the pedal pad 24 due to the front-rear adjustment is relatively small. It is desirable that the height variation of the pedal pad 24 be based on the floor surface of the vehicle body. In that case, the position lowered from the axis O ₂ substantially perpendicular to the floor surface is considered to be the position directly below the axis O _2. Good. Also, the rotating shaft 2
Since the linear distance from 0 to the pedal pad 24 is relatively long, the ratio of the turning angle to the front-back adjustment range of the pedal pad 24 is small, and the posture change of the pedal pad 24 is small.

At the engaging portion of the rod 30, a clevis pin 48 of the clevis 26 is inserted through an elongated hole 46 formed at the one end of the rotating member 18. Slot 46
Is formed in a substantially vertical direction so as to be close to and away from the axis O ₁ of the support shaft 16 and orthogonal to the pressing direction of the rod 30, that is, the left-right direction in FIG. An adjustment link member 50 is also connected to the clevis pin 48 at one end thereof so as to be relatively rotatable, and the other end of the adjustment link member 50 is connected to a pedal arm via a pin 52 parallel to the rotation shaft 20. It is connected to 22. Therefore,
When the pedal arm 22 rotates relative to the rotation member 18, the adjustment link member 50 is moved along with the rotation of the pin 52, and the clevis pin 48 is moved up and down in the elongated hole 46. Specifically, when the pedal arm 22 as shown in FIG. 1 is rotated clockwise around the rotary shaft 20 and the pedal pad 24 is moved to the front end of the vehicle, the clevis pin is provided at the upper moving end in the elongated hole 46. When the pedal arm 22 as shown in FIG. 2 is rotated counterclockwise of the rotation shaft 20 and the pedal pad 24 is moved to the rear end of the vehicle as shown in FIG. A clevis pin 48 is located at the end. In other words, the range of relative rotation of the pedal arm 22 by the front-back adjusting means 32 is defined by the upper and lower moving ends of the elongated hole 46.

Here, when the pedal pad 24 is moved back and forth by the front-back adjusting means 32, the axis O of the support shaft 16 is reached.
The linear distance L2 from ₁ to the pedal pad 24 changes, but the linear distance L1 from the axis O ₁ of the support shaft 16 to the engagement position of the rod 30 with respect to the elongated hole 46, that is, the clevis pin 48 also changes with the distance change. Change to increase or decrease,
The lever ratio L2 / L1 hardly changes regardless of the movement of the pedal pad 24. That is, although the linear distance L2b (FIG. 2) when the pedal pad 24 is located at the rear end is greater than the linear distance L2a (FIG. 1) when the pedal pad 24 is located at the front end, the linear distance L1
As for L1a (FIG. 1), L1b (FIG. 2) becomes larger, and the position of the clevis pin 48 is moved along the slot 46 such that L2a / L1a≈L2b / L1b. Further, since the elongated hole 46 intersects the moving direction of the rod 30 at a substantially right angle, the protruding position of the rod 30 is maintained substantially constant regardless of the movement of the clevis 48. The change amount and the change direction of the straight line distance L1 are the distance between the rotary shaft 20 and the pin 52 and the pin 5 around the rotary shaft 20.
The above-mentioned lever ratio L2a
In this embodiment, the position on the left side of the rotary shaft 20, that is, the rotary shaft 20 and the support shaft 1 is set so that / L1a≈L2b / L1b.
The adjustment link member 50 is connected by disposing the pin 52 in the vicinity of the line segment connecting the 6 and 6.

As described above, in the brake pedal device 10 of the present embodiment, the pedal arm 22 and the rotating member 18 are connected at different connecting angles by the front-rear adjusting means 32 in the state where the rotating member 18 is held in the original position. When positioned, the pedal pad 24 provided on the pedal arm 22 is rotated about the axis O ₂ of the rotation shaft 20 and moved in the front-rear direction of the vehicle. In that case, the rod 30 pressed by the stepping operation is engaged with the elongated hole 46 formed in the rotating member 18 and is connected to the pedal arm 22 via the adjustment link member 50.
By changing the engagement position with respect to the long hole 46 as the connection angle between the rotation member 18 and the rotation member 18 is changed,
Since the lever ratio is maintained to be approximately constant,
Regardless of the front-back adjustment of the pedal pad 24, the required stepping operation force is maintained substantially constant. Moreover, since the elongated hole 46 is formed in the rotating member 18, the rod 30 is engaged with the elongated hole 46, and the rod 30 and the pedal arm 22 are connected by the adjustment link member 50, the number of parts is reduced. Therefore, the device can be constructed very simply and inexpensively.

Further, in this embodiment, since the pedal arm 22 may be relatively rotated with respect to the rotating member 18, the pedal pad 24 is provided in comparison with the conventional device for moving the pedal arm in parallel. The device can be moved smoothly and the device can be configured easily and compactly. Since the pedal arm 22 is rotated to move the position of the pedal pad 24 back and forth, it is unavoidable that the height of the pedal pad 24 fluctuates, but in the present embodiment, the pedal pad 24 rotates. Since the shaft 20 can be rotated in a predetermined rotation range including a position directly below the axis O ₂ of the shaft 20,
The height variation of the pedal pad 24 due to the front-rear adjustment is relatively small, and the change in the stepping operability due to the front-rear adjustment is small.

On the other hand, in this embodiment, the rotating member 18
Since the front-rear adjusting means 32 is configured to include the screw shaft 42 and the nut member 44 which are respectively provided on the pedal arm 22 and screwed together, the electric motor 4
By rotating the screw shaft 42 and the nut member 44 relative to each other by 0, the connection angle between the rotating member 18 and the pedal arm 22 can be continuously changed, and the positioning can be reliably performed at an arbitrary connection angle. The position can be adjusted steplessly. Further, since the front-rear adjusting means 32 is arranged relatively close to the rotating shaft 20, the pedal pad 24 can be largely moved with a small driving stroke, while the front-rear adjusting means 32 is arranged in the substantially vertical direction. Since it is provided, the drive stroke can be shortened, and the installation space in the vehicle front-rear direction can be reduced.

Next, another embodiment of the present invention will be described. The embodiment shown in FIG. 3 is an example in which the present invention is applied to an accelerator pedal device 60 for a vehicle as an operation pedal device, and the accelerator pedal device 60 is supported by a bracket 64 fixed to a vehicle body 62. A rotary member 68 that is rotatably disposed around the axis O ₁ of the support shaft 66 via 66, and a shaft O _{2 of} a rotary shaft 70 that is parallel to the support shaft 66 on the rotary member 68. And a pedal arm 72 mounted so as to be rotatable relative to each other. A pedal pad 74 is provided at the tip extending downward of the pedal arm 72.

To the rotating member 68, a throttle cable 78 is connected to the upper left end in FIG. 3 via a clevis 76, while a pedal arm 72 is connected to the upper right end via the front-rear adjusting means 32. Has been done. When the connecting angle of the pedal arm 72 and the rotating member 68 around the axis O ₂ is positioned by the front-rear adjusting means 32 and the pedal pad 74 is stepped on, the rotating member 68 is integrated with the pedal arm 72 as shown in FIG. Support shaft 6 from the original position shown in
6 is rotated clockwise, and the throttle cable 78 is pulled to open a throttle valve (not shown). In the present embodiment, the throttle cable 78 corresponds to the acting member, and the support shaft 66 and the rotating shaft 7 are provided.
The axes O ₁ and O _{2 of} 0 correspond to the first axis and the second axis, respectively. The rotating member 68 is urged to rotate counterclockwise of the support shaft 66 by the urging force of a return spring 80 such as a tension coil spring arranged between the clevis 76 and the bracket 64. Is brought into contact with the stopper portion 82 provided at the upper end of the bracket 64, thereby defining the counterclockwise rotating end of the support shaft 66 of the rotating member 68, that is, the original position.

In the front-rear adjusting means 32, the electric motor 40 and the nut member 44 are respectively rotatable members 68.
And the screw shaft 4 attached to the pedal arm 72.
As long as the electric motor 40 is stopped, the rotation member 68 and the pedal arm 7 are screwed by screwing the screw 2 with the nut member 44.
The connection angle around the shaft center O _{2 of 2} is positioned, and the pedal arm 72 and the rotating member 68 are always integrally rotated about the support shaft 66, while the electric motor 40 is rotationally driven by a switch operation. By doing so, the connection angle is changed. The solid line in FIG. 3 shows a connected state in which the pedal arm 72 is rotated relative to the rotating member 68 to the rightmost of the rotating shaft 70, and when the connecting angle is arbitrarily changed and positioned, The pedal pad 74 is moved in the front-rear direction of the vehicle while the rotating member 68 is held in the original position, and the movement is adjusted steplessly and arbitrarily between the front end shown by the solid line and the rear end shown by the alternate long and short dash line. It Further, the pedal pad 74 at the front and rear end positions has the axis O _{2 of the} rotary shaft 70.
Of the pedal pad 74 with a relatively small height variation in a predetermined rotation range from the front end to the rear end including the position directly below the axis O ₂ thereof. Can be moved back and forth.

The clevis pin 84 of the clevis 76 is engaged with an elongated hole 86 formed in the rotating member 68 so as to be relatively movable. The elongated hole 86 is formed in a substantially vertical direction so as to be close to and away from the axis O ₁ of the support shaft 66 and orthogonal to the pulling direction of the throttle cable 78, that is, the horizontal direction in FIG. An adjustment link member 90 is connected to the clevis pin 84 at one end thereof so as to be relatively rotatable, and the other end of the adjustment link member 90 is connected to a pedal arm via a pin 88 parallel to the rotation shaft 70. It is connected to 72. Therefore, the pedal arm 72
When is rotated relative to the rotating member 68, the adjustment link member 90 is moved along with the rotation of the pin 88, and the clevis pin 84 is moved up and down in the elongated hole 86. When the pedal pad 74 is moved to the front end of the vehicle as shown by the solid line in FIG. 3, the clevis pin 84 is positioned at the lower moving end in the elongated hole 86, while the pedal pad 74 is moved as indicated by the alternate long and short dash line. When moved to the rear end of the vehicle, the clevis pin 84 is positioned at the upper moving end in the elongated hole 86, and the relative rotation range of the pedal arm 72 by the front-rear adjusting means 32 is defined by the elongated hole 86.

Here, when the pedal pad 74 is moved back and forth, the pedal pad 74 moves from the axis O ₁ of the support shaft 66.
The linear distance L3 from the axis O ₁ of the support shaft 66 to the engagement position of the throttle cable 78, that is, the clevis pin 84 changes with the distance change.
Also changes, regardless of the movement of the pedal pad 74, the lever ratio L
4 / L3 hardly changes. That is, although the linear distance L4b when the pedal pad 74 is located at the rear end is larger than the linear distance L4a when the pedal pad 74 is located at the front end, the linear distance L3 is also larger than L3a with respect to the linear distance L3. Become, L4a / L
Clevis pin 84 so that 3a≈L4b / L3b
The position of is moved along the long hole 86. Further, since the elongated hole 86 intersects the movement direction of the throttle cable 78 at a substantially right angle, the drawn-out position of the throttle cable 78 is maintained substantially constant regardless of the movement of the clevis 82. The amount and direction of change of the linear distance L3 differ depending on the distance between the rotary shaft 70 and the pin 88 and the position of the pin 88 around the rotary shaft 70.
In this embodiment, the adjustment link member 90 is connected by disposing the pin 88 at the upper right position of the rotary shaft 70 so that a / L3a≈L4b / L3b.

Also in the present embodiment, the engagement position of the throttle cable 78, that is, the position of the clevis pin 84 is displaced in accordance with the rotation of the pedal arm 72, so that the lever ratio is substantially irrespective of the forward / backward adjustment of the pedal pad 74. It is kept constant and the stepping force is hardly changed. In addition, it is easy to form the elongated hole 86 and the adjustment link member 90, and the number of parts is small, so that the device can be configured extremely easily and inexpensively.
The pedal pad 74 can be moved smoothly as compared with the case of parallel movement, and the device can be configured easily and compactly. The front-rear adjusting means 32 allows the rotating member 68 and the pedal arm 72 to be connected at an arbitrary connecting angle. The same effects as those of the above-described embodiment can be obtained in that the positioning can be reliably performed and the front and rear positions of the pedal pad 74 can be adjusted steplessly.

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 relative rotation range of the pedal arms 22, 72 with respect to the rotation members 18, 68 is defined by the moving ends of the clevis pins 48, 84 in the elongated holes 46, 86. However, by disposing a stopper between the pedal arms 22 and 72 and the rotating members 18 and 68 and defining the moving range of the nut member 44 with respect to the screw shaft 42,
The relative rotation range of the pedal pad 24, 74 and the front-back adjustment range of the pedal pad 24, 74 may be defined.

Further, in the above embodiment, the elongated holes 46 and 86 are formed so as to intersect each other at a substantially right angle with respect to the pushing direction of the rod 30 and the pulling direction of the throttle cable 78, but at least the clevis pins 48 and 84 are formed. As long as the support shafts 16 and 66 can be approached and separated from each other, elongated holes may be provided so as to intersect obliquely.

Further, in the above embodiment, the adjustment link member 5
0 and 90 were connected to the pedal arms 22 and 72 at the left and upper right positions of the second axis O ₂ , respectively, but at such connection positions, the long holes 4 are formed so that the lever ratio becomes substantially constant.
The clevis pins 48 and 84 can be moved within 6 and 86 depending on the positions and shapes of the elongated holes 46 and 86.

Further, in the above embodiment, the pad position can be automatically and continuously changed by using the front-rear adjusting means 32 having the electric motor 40, the screw shaft 42 and the nut member 44. A handle or the like may be provided on the shaft 42 so as to be rotationally driven manually. Further, for example, one of the rotating members 18 and 68 and the pedal arms 22 and 72 is provided with meshing teeth in an arc shape centering on the rotating shafts 20 and 70, and a rack or a gear that meshes with the meshing teeth is provided to the rotating member 18. , 68 and the pedal arms 22, 72, and the connection angle may be changed by linearly moving the rack or rotationally driving the gears by an electric motor. The front-rear adjusting means may be positioned at at least different connecting angles, such that the connecting angle between the rotating members 18, 68 and the pedal arms 22, 72 may be changed by work so as to be integrally fixed with bolts or nuts. Anything can be done.

Further, the accelerator pedal device 6 of the above embodiment
Although the throttle cable 78 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 is also 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 partially cutaway front view showing an embodiment in which the present invention is applied to a vehicle accelerator pedal device.

[Explanation of symbols]

10: Brake pedal device (operation pedal device) 12, 62: Vehicle body 14, 64: Bracket 18, 68: Rotating member 22, 72: Pedal arm 24, 74: Pedal pad 30: Rod (action member) 32: Front / rear adjustment means 46,86: long hole 50, 90: adjusting link member 60: accelerator pedal device (operating pedal device) 78: throttle cable (action member) O _1: the first axis O _2: second axis

─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields investigated (Int.Cl. ⁷ , DB name) G05G 1/00-25/04 B60K 25/00-26/02 B60K 23/00-23/08 B60T 7 / 06 F02D 9/00-11/10

Claims (2)

(57) [Claims] 1. A bracket fixed to a vehicle body is rotatably arranged around a first axis, and a pedal pad is depressed to rotate from a home position around the first axis. An operation pedal device capable of moving a position of the pedal pad in a front-rear direction of a vehicle while pressing or pulling a predetermined action member, the operation pedal device being attached to the bracket so as to be rotatable about the first axis. And an elongated hole is formed so as to approach and separate from the first axis and intersect with the pressing and pulling directions of the acting member, and the acting member is relatively movably engaged with the elongated hole. A rotation member, a pedal arm rotatably connected to the rotation member about a second axis substantially parallel to the first axis, and provided with the pedal pad, and the pedal arm. With the rotating member It is arranged across the
The pedal arm and the rotating member are always integrally rotated about the first axis, and the pedal pad is moved to the second axis while the rotating member is held in the original position. Position of the pedal arm and the rotating member at different connection angles that rotate about the second axis within a predetermined rotation range including a position directly below the position of the pedal pad, and the position of the pedal pad in the vehicle longitudinal direction is changed. Front-rear adjusting means, and the action member and the pedal arm, and is arranged so as to straddle the action member and the pedal arm. By changing the engaging position of the acting member, the ratio of the linear distance from the first axis to the pedal pad and the linear distance from the first axis to the engaging position of the acting member is made substantially constant. It has an adjusting link member to maintain A front and rear adjustable operation pedal device. 2. The front-rear adjusting means is rotatably provided on one and the other of the rotating member and the pedal arm about an axis substantially parallel to the second axis, and is screwed to each other. The operation pedal device according to claim 1, wherein the operation pedal device includes a screw shaft and a nut member.