JPH0830346A - Forward/backward controllable operating pedal device - Google Patents

Abstract

PURPOSE:To provide an operating pedal device which is comparatively simply and strongly structured and low-priced and further smoothly enables a forward/ backward control operation with a manual operation. CONSTITUTION:An operating pedal 18 to be turned around a supporting shaft 16 is arranged at a slide member 34 arranged at a bracket 14 fixed on a car body 12 so as to be moved forward and backward in a vehicle, this operating pedal is engaged through a pole 74 and ratchet member 72 to a rod 32. On the other hand, a shaft 50 arranged on the slide member 34 so as not to be relatively moved back and forth in the vehicle is turned to an unlock position around a shaft center, the slide member 34 is moved forward and backward in the vehicle by canceling the engagement of a lock pin 54 and an engaging hole formed on the bracket 14 but not shown in figure, and the lock pin 54 and the engaging hole are engaged by turning the shaft 50 to the lock position around the shaft center. Thus, the slide member 34 can be set at plural positions forward or backward in the vehicle.

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 the operation pedal in the longitudinal direction of the vehicle. Is.

[0002]

2. Description of the Related Art An operating pedal, which is rotatably disposed on a bracket fixed to a vehicle body, is stepped on and rotated from its original position so that an operating member engaged with the operating pedal is moved. BACKGROUND ART Vehicular operation pedal devices that push or pull, such as brake pedals, accelerator pedals, and clutch pedals, are widely known. One type of such vehicle operation pedal devices is the position of the operation pedal in the vehicle front-rear direction. Something that can be moved is proposed.
For example, JP-A-2-129710 and JP-B-50-6.
The device described in Japanese Patent No. 694 is an example, and a plurality of screw shafts that are synchronously rotated are used to translate the whole including a connecting portion with an operating member by an electric motor. The relative position between them does not change, the posture and height position of the operation pedal are maintained constant, and the linear distance from the rotation axis of the operation pedal to the pedal pad and from the rotation axis to the connecting portion of the action member The ratio with the linear distance of (hereinafter, referred to as lever ratio) does not change. According to such an operation pedal device, the front-rear position of the operation pedal can be adjusted to an optimum position according to the body shape and preference of the driver, so that the driving operation becomes easy.

[0003]

However, in such a conventional operation pedal device, the plurality of screw shafts are synchronously rotated to move the operation pedal back and forth, and at the same time, the connecting portion with the action member is moved back and forth. Since the structure is complicated and the cost is high, the front and rear positions of the operation pedal are positioned by the screw shaft, so that a large load is applied to the screw thread during the stepping operation, and it is difficult to obtain sufficient durability. There was a problem. In addition, since the screw shaft is driven to rotate by the electric motor, the apparatus becomes more expensive and heavier.

The present invention has been made in view of the above circumstances. An object of the present invention is to provide an operation pedal device which is relatively simple and has a robust structure, is inexpensive, and can be smoothly adjusted by a manual operation. To provide.

[0005]

A first aspect of the present invention for achieving the above object is to operate an operation pedal rotatably mounted on a bracket fixed to a vehicle body by depressing the operation pedal from an original position. An operation pedal device capable of pressing or pulling an action member engaged with the operation pedal by being rotated, and moving the position of the operation pedal in the front-rear direction of the vehicle. a) a slide member which is disposed on the bracket so as to be movable in the vehicle front-rear direction, and on which the operation pedal is attached so as to be rotatable about a rotation axis substantially perpendicular to the vehicle front-rear direction and substantially horizontal; b) a stopper which is provided on the slide member and which defines the original position of the operation pedal by abutting the operation pedal; and (c) a straddle straddling the operation pedal and the slide member. And a first spring that always urges the operation pedal in a direction to bring the operation pedal into contact with the stopper, and (d) relative rotation of the slide member about a single axis substantially parallel to the vehicle longitudinal direction. A front-rear operating member which is disposed so as to be relatively immovable in the uniaxial direction, and (e) the front-rear operating member is rotatably operated to a lock position around the uniaxial center, and thereby the slide member. The slide member is positioned at a plurality of positions in the vehicle front-rear direction by engaging the bracket with the bracket so as not to be relatively movable in the vehicle front-rear direction, and the front-rear operation member is pivotally operated to the unlock position around the one axis. As a result, the positioning mechanism that releases the engagement between the slide member and the bracket to allow the slide member to move in the vehicle front-rear direction, and (f) is provided so as to be relatively movable in the vehicle front-rear direction. One or the other of the operation pedal and the action member are engaged with each other, so that the relative movement in the direction in which the stepping operation force applied to the operation pedal is transmitted to the action member is located at a plurality of positions in the vehicle longitudinal direction. A pole and a ratchet member that are blocked by, and (g) a second spring that constantly urges the pole in a direction that meshes with the ratchet member.
(H) One end is engaged with the pawl and is pulled toward the other end to rotate the pawl against the urging force of the second spring and mesh with the ratchet member. And a release cable for releasing.

[0006]

In the operation pedal device capable of adjusting the front-rear direction as described above, the slide member is relatively rotatable about the uniaxial center substantially parallel to the front-rear direction of the vehicle and is relatively movable in the uniaxial direction. The front and rear operation members that are arranged impossible,
When the slide member and the bracket are engaged by the positioning mechanism so as not to move relative to each other in the vehicle front-rear direction, the slide member is moved to any of a plurality of positions in the vehicle front-rear direction when rotated to a lock position around the uniaxial center. Positioned. Also,
The relative movement in the direction of transmitting the stepping operation force applied to the operating pedal to the operating member is relative to the vehicle longitudinal direction due to the engagement of the pole and the ratchet member that are provided on one and the other of the operating pedal and the operating member and mesh with each other. Since it is blocked at a plurality of positions, the action member is reliably pressed or pulled when the operation pedal is positioned at any position. The positioning mechanism includes, for example, an engagement pin that is provided on a front-rear operation member that is relatively immovable in the vehicle front-rear direction with respect to a slide member, and that is rotated around a uniaxial center; It can be configured by using an engagement groove or the like that is formed at a pitch of a predetermined interval and is engaged with the engagement pin.

On the other hand, when the front / rear operation member is pivotally operated to the unlock position, the engagement between the slide member and the bracket by the positioning mechanism is released, and the slide member is allowed to move in the front / rear direction of the vehicle. When the slide member is moved, the operation pedal is moved in the original position in which the operation pedal is in contact with the stopper according to the urging force of the first spring, but the stepping operation force applied to the operation pedal is applied. In the case of moving in the direction of transmission to the member, a pulling operation of the release cable is performed prior to the movement to release the engagement between the pawl and the ratchet member against the urging force of the second spring, so that the direction is changed. Movement of the slide member is allowed. The relative movement in the opposite direction is allowed by the pole overcoming the meshing teeth of the ratchet member against the urging force of the second spring, but the release cable is pulled to operate the pole and ratchet. You may make it move in the state which disengaged with a member. The pitch of the meshing teeth of the ratchet member is set to be equal to or smaller than the pitch of the plurality of positioning positions by the positioning mechanism.

Therefore, when adjusting the front-rear position of the operation pedal in such an operation pedal device, the front-rear operation member is pivotally operated from the locked position to the unlocked position to release the positioning by the positioning mechanism and necessary. Accordingly, the release cable is pulled to release the meshing between the pole and the ratchet member, and in this state, the front-rear operation member is moved in the front-rear direction so that the operation pedal is at a desired position. After that, when the release cable is pulled, the release cable may be returned to engage the pawl with the ratchet member, and the front-rear operating member may be rotated to the lock position for positioning by the positioning mechanism.

In the operation pedal device of the present invention, the entire operation pedal is moved in parallel in the front-rear direction. Therefore, regardless of the front-rear adjustment, the attitude and height position of the operation pedal,
The lever ratio is maintained constant, and the required pedaling force and other pedaling characteristics do not change. Moreover, in the present invention, the slide member supporting the operation pedal is moved back and forth by the front and rear operation member, and is positioned by the turning operation of the front and rear operation member, while the pole and the ratchet member are Since the operating pedal and the operating member are engaged with each other by meshing, it is possible to easily and smoothly adjust the operating pedal forward and backward, and to synchronize a plurality of screw shafts with an electric motor as before. Compared with the case where the connection position between the operation pedal and the action member is moved back and forth by rotating, there is an advantage that the device structure becomes simpler, and it is robust, lightweight and inexpensive.

[0010]

A second aspect of the invention is to lock the front and rear operation member between the front and rear operation member and the operation pedal in a state where the operation pedal is depressed. Rotation limiting means for preventing rotation to the unlock position side by engaging with each other even when the position is rotated from the position to the unlock position side is provided.

[0011]

In the operation pedal device capable of adjusting the front-rear direction, even if an attempt is made to rotate the front-rear operation member from the lock position to the unlock position side with the operation pedal being depressed, Since the rotation restricting means that are engaged with each other prevent rotation toward the unlock position side, the front and rear operation members rotate from the lock position to the unlock position when the operation pedal is stepped on, There is no risk that the positioning of the slide member by the positioning mechanism will be released and the slide member will move in the front-back direction, and it is possible to reliably avoid the problem that the slide member moves back-and-forth during the depression operation of the operation pedal and the output to the acting member cannot be obtained. On the contrary, when the front / rear operation member is rotated to the unlock position to adjust the operation pedal in the front / rear direction, the rotation limiting means cannot engage with each other even if the operation pedal is depressed. Therefore, when performing the front-rear adjustment, the operation pedal is always held in the original position, and it is possible to prevent the operation pedal from being depressed while the position of the slide member is unstable.

[0012]

A third aspect of the present invention is to maintain a meshed state of the pawl and the ratchet member and to maintain the attitude of the ratchet member in the meshed state such that a plurality of meshing teeth are in front and rear of the vehicle. A guide member that is defined so as to be continuous in the direction is disposed rotatably around an axis parallel to the rotation axis with respect to the operation pedal,
A link member is provided across the guide member and the slide member so as to move the guide member substantially in parallel when the operation pedal is depressed.

[0013]

In the operation pedal device which can be adjusted in the front-rear direction, the link member is provided so as to extend over the guide member and the slide member which are rotatable relative to the operation pedal. Since the guide member is moved substantially in parallel when the operation pedal is stepped on by the link mechanism configured with the operation pedal and the guide member, the posture of the ratchet member is maintained constant even when the stepping operation is performed. As a result, the ratchet member is guided in the pushing or pulling direction of the action member while maintaining the meshing, and the force is not transmitted in the state where the ratchet member and the action member are bent, and twisting occurs or efficiency is reduced. It is prevented from getting worse.

[0014]

According to a fourth aspect of the present invention, the operation pedal is a brake pedal, the outer casing of an accelerator cable is fixed to the slide member, and the accelerator cable is connected to the outer casing. The accelerator pedal is rotatably attached separately from the brake pedal.

[0015]

In the operation pedal device capable of adjusting the front-rear direction, the brake pedal and the accelerator pedal are arranged in parallel on the slide member, and the front-rear adjustment of the brake pedal and the operation of the accelerator pedal are performed at the same time. Since the front-back adjustment is performed, the device can be configured easily and inexpensively and the front-back adjustment can be facilitated as compared with the case where the front-back adjustment can be performed separately.

[0016]

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 of a case where the present invention is applied to a vehicle brake pedal device 10 as an operation pedal device. The brake pedal device 10 is fixed to a vehicle body 12. Bracket 1
4 and is provided on a slide member 34 provided inside the bracket 14 so as to be rotatable about a support shaft 16 that is provided substantially at right angles to the vehicle front-rear direction and substantially horizontally. 18 are provided. FIG. 2 is a sectional view taken along line II-II in FIG. 1, in which a rotating sleeve is provided on the outer peripheral side of a support shaft 16 which is arranged to penetrate the bracket 14 in the vehicle width direction via an inner sleeve 17 and a bearing bush 19. 20 is provided so as to be relatively rotatable, and a proximal end portion of the operation pedal 18 is fixedly mounted on the rotating sleeve 20. In FIG. 1, at the lower end of the operation pedal 20, there is a pedal pad 2 which is depressed by the driver toward the front of the vehicle.
6 is provided, and when the pedal pad 26 is depressed to rotate the operation pedal 18 around the support shaft 16 from the original position, the rod of the brake booster 30 connected to the operation pedal 18 via the clevis 28. 32 is pushed toward the front side of the vehicle, and the push rod of a master cylinder (not shown) is pushed in to generate brake hydraulic pressure. In this embodiment, the shaft center of the support shaft 16 corresponds to the rotation shaft center, and the rod 32 corresponds to the acting member.

As can be seen from the perspective view of FIG. 3, a pair of substantially vertical side surfaces 14a and 14b of the bracket 14 are formed with a pair of parallel and substantially horizontal elongated holes 22 and 24, respectively. The support shaft 16 of 34 is inserted through the pair of elongated holes 22 and 24. Further, as is clear from the perspective view of FIG. 4 and the plan sectional view of FIG. 6, the slide member 34 has a substantially U-shaped cross-sectional shape and is provided on the pair of side surface portions 34a and 34b. The support shaft 16 is inserted through the pair of insertion holes 36 and 38. The nut 40 is fastened to the male screw portion of the support shaft 16 outside the one elongated hole 22 of the bracket 14, so that the slide member 34 and the rotating sleeve 20 are irremovably arranged with respect to the bracket 14, and are rotated. The sleeve 20 is held substantially parallel to the vehicle width direction, and the slide member 34 is positioned in the axial direction of the support shaft 16. Between the one elongated hole 22 and the support shaft 16,
One side surface portion 14a of the bracket 14 and the slide member 3
4 is provided with a collar 42 that defines a gap between the one side surface portion 34a and the side surface portion 34a, the stepped bolt-shaped support shaft 1
The bracket 14 is not tightened by fastening the 6 and the nut 40, and the slide member 34 is
It is supported along 24 so as to be movable in the vehicle front-rear direction.

A part of the side surface portion 34c of the slide member 34 parallel to the support shaft 16 extends downward in FIG. 1 and is bent, and a stopper 44 for defining the original position of the operation pedal 18 is fixedly provided. ing. In addition, the side surface 34
A return spring 46 is provided between c and the operation pedal 18.
Is provided, and the operation pedal 18 is
Is urged to rotate counterclockwise of the support shaft 16. Therefore, the contact portion 48 integrally fixed to the operation pedal 18 is brought into contact with the stopper 44, and the original position of the operation pedal 18 is defined by this contact. In addition,
The rod 32 is urged so as to protrude from the brake booster 30, and the operation pedal 18 that has been depressed is operated.
When returning to the original position, the operation pedal 18 is returned to the counterclockwise rotation of the support shaft 16 and rotated mainly by the rod 32. The return spring 46 corresponds to the first spring.

The slide member 34 includes the side surface portion 34c.
Is provided in the front-rear direction of the vehicle, and a shaft 50 is provided which is relatively immovable in the axial direction by a pair of retaining rings 52, 52 (see FIG. 6). A perspective view of the shaft 50 is shown in FIG.
-VII shows a cross-sectional view in FIG. The shaft 50 corresponds to a front and rear operation member, and a lock pin 54 is provided upright on the tip side located inside the slide member 34 at a right angle to the axial direction, and at the end, the lock pin 54 and the axial center are provided. Tip engaging portion 50a bent and raised in a direction rotated by 90 °
On the other hand, it is supported by a semi-cylindrical guide member 56 fixed in the slide member 34 and a guide plate 58 so as to be relatively rotatable around the axis. The lock pin 54 is in a substantially horizontal posture when the shaft 50 is pivotally operated to the lock position as shown in FIG. 2 in the assembled state where the position in the vehicle front-rear direction with respect to the slide member 34 is defined by the retaining ring 52. Occasionally, when the shaft 50 is projected to the outside from the slit 60 formed in the side surface portion 34a of the slide member 34, and the shaft 50 is rotated to the unlock position which is rotated about 90 ° counterclockwise in FIG.
It has a substantially vertical posture and can be retracted inside the side surface portion 34a. The lock position is defined by the lock pin 54 contacting the lower end of the slit 60.

The shaft 50 is movable in the axial direction and the axial center by the side surface portion 15 (see FIG. 1) which is integrally joined by welding or the like across the side surface portions 14a and 14b of the bracket 14. It is rotatably supported around it. The shaft 50 and the support shaft 16 are respectively supported by the bracket 14, so that the slide member 34 is positioned in a fixed posture such that the shaft 50 is parallel to the elongated holes 22 and 24, and the front and rear of the vehicle with respect to the bracket 14. Translation in the direction is allowed.
As is apparent from FIG. 6, a plurality of (five in this embodiment) engagement holes 62 are formed in the side surface portion 14a of the bracket 14 at a constant pitch in the vehicle front-rear direction parallel to the shaft 50, When the shaft 50 is pivotally operated to the lock position and the lock pin 54 is engaged with any one of the engaging holes 62, the shaft 50 and the slide member 34 move in the vehicle front-rear direction. Are blocked and positioned at a plurality of positions corresponding to the plurality of engagement holes 62. In the case of this embodiment, since the shaft 50 is provided integrally with the slide member 34, the slide member 34 is indirectly engaged with the bracket 14 so as not to be movable in the vehicle front-rear direction and positioned. .

On the other hand, when the shaft 50 is rotated to the unlocked position, the engagement between the lock pin 54 and the engagement hole 62 is released, and the shaft 50 and the slide member 34 are released.
Is allowed to move in the vehicle front-rear direction. Figure 6
In the state, the support shaft 16 is located on the most front side of the vehicle in the elongated holes 22 and 24, and the lock pin 54 is engaged with the engagement hole 62 located on the most front side of the vehicle. A compression coil spring 88 is provided between the side surface portion 15 of the bracket 14 and the side surface portion 34c of the slide member 34, and always biases the slide member 34 toward the vehicle front side. Rattling of the member 34 is prevented. In this embodiment, the lock pin 54 and the engagement hole 62 constitute a positioning mechanism.

Further, the shaft 50 near the lock pin 54
A torsion coil spring 64 is arranged around the outer periphery of the shaft 50, and one end and the other end are hooked on the lock pin 54 and the side surface portion 34a of the slide member 34, so that the shaft 50 is urged clockwise in FIG. Then, it is always held in the locked position. Therefore, the disengagement of the lock pin 54 and the engagement hole 62 due to vibration or the like is favorably prevented. The torsion coil spring 64 functions as a lock urging means. On the other hand, the rear end portion of the shaft 50 on the right side in FIG. 1 is supported by a bracket 66 fixed to the vehicle body so as to be rotatable around the axis and movable in the axis direction. A handle 68 for rotating and back and forth operations is integrally attached. The handle 68 has a rotation end on the unlock position side defined by a stopper (not shown) so as to rotate the shaft 50 between the lock position and the unlock position. And
By rotating the handle 68 to the unlock position side to move it back and forth, the slide member 34 and further the operation pedal 18 are moved in the front-rear direction of the vehicle, and rotate the handle 68 to the lock position side at a desired position. By operating the lock pin 54 to engage with the engagement hole 62, the front and rear positions of the slide member 34 and the operation pedal 18 can be adjusted to arbitrary positions of a plurality of positions corresponding to the plurality of engagement holes 62. The handlebar 68 and the operation pedal 18 shown by the alternate long and short dash line in FIG. 1 are the case where they are adjusted to the rearmost side of the vehicle, and are adjusted stepwise between the positions on the frontmost side shown by the solid lines.

The connecting mechanism between the clevis 28 and the operation pedal 18 is a ratchet member 72 having a plurality of meshing teeth 70 and a pole 74 meshed with the meshing teeth 70.
And a release cable 78 that rotates the pawl 74 against the biasing force of the compression coil spring 76 to release the engagement with the ratchet member 72. The pole 74 is rotatably supported by the operation pedal 18 via a pin 82 substantially parallel to the support shaft 16, while the ratchet member 72 has a clevis 28 at one end on the vehicle front side.
Via a clevis pin 29 so as to be rotatable about an axis substantially parallel to the support shaft 16. Ratchet member 72
Is inserted through the inside of a hat-shaped cross-section-shaped guide member 80 fixedly provided on the side surface of the operation pedal 18 in the front-rear direction of the vehicle, and the guide member 80 and the clevis 28 mesh and mesh with the pole 74. The posture in the state is kept substantially horizontal. One end of the release cable 78 is locked to the pole 74, and the other end of the release cable 78 is connected to the handle 6
In the vicinity of 8, a release grip 84 provided on the shaft 50 so as to be movable in the axial direction is locked.

One end of the release cable 78 on the pole 74 side of the outer casing 79 is fixed to the operation pedal 18, and the compression coil spring 76 is provided between the fixed portion and the cable locking portion of the pole 74. It is arranged around the outer circumference of 78. The other end of the outer casing 79 is fixed to a locking member 81 integrally fixed to the shaft 50 so that the outer casing 79 can be rotated and moved back and forth together with the shaft 50. The release grip 84 is moved to the front side of the vehicle according to the urging force to a position where it is substantially in contact with the locking member 81, and in that state, the engagement between the pawl 74 and the ratchet member 72 is allowed. The compression coil spring 76 corresponds to the second spring.
The bracket 66 is provided with a bush 67 that guides both the shaft 50 and the outer casing 79. The guide hole 69 that guides the outer casing 79 is locked as shown by the solid line in FIG. Member 8
When the shaft 50 is rotated to the unlock position in the state where 1 is positioned close to the bush 67, the outer casing 79 has a circular arc shape that allows the outer casing 79 to rotate around the axis of the shaft 50. Has been done.

The pole 74 and the ratchet member 72
Is to prevent relative movement in the direction in which the stepping operation force applied to the operation pedal 18 is transmitted to the rod 32 at a plurality of positions in the vehicle front-rear direction, and the tooth tips of each meshing tooth 70 are inclined toward the vehicle rear side. When the operation pedal 18 is depressed and the pole 74 is moved to the front side of the vehicle, the ratchet member 72 is also moved to the front side of the vehicle together with the pole 74 due to the engagement between the pole 74 and the engaging teeth 70. Then, the rod 32 is pressed. On the other hand, when the release grip 84 is pulled toward the handle 68, the engagement between the pawl 74 and the ratchet member 72 is released against the biasing force of the compression coil spring 76. Further, the operation pedal 18 is allowed to move relative to the vehicle front-rear direction,
The pole 74 and the ratchet member 7 according to the front and rear position adjustment of the
The meshing position with 2, that is, the connecting position with respect to the rod 32 that is the operating member is changed.

The rod 32 is urged in the direction in which it is projected from the brake booster 30. In FIG. 1, the slide member 34 and the operation pedal 18 are most forward of the vehicle with the rod 32 held at the projecting end according to the urging force. In the state in which the meshing teeth 70 on the most front side of the vehicle are positioned.
The ratchet member 72 is configured so that the gear meshes with the pole 74. In addition, the meshing teeth 70 of the ratchet member 72
Are provided with the same pitch and the same number as the engaging holes 62, and the poles 74 are provided in correspondence with the front-back adjustment of the operation pedal 18.
The meshing position between the ratchet member 72 and the ratchet member 72 is also adjusted in five steps. Even when the pawl 74 and the ratchet member 72 are in mesh with each other, the movement of the pawl 74 toward the vehicle rear side is
The meshing teeth 70 are resisted against the biasing force of the compression coil spring 76.
When the adjustment of the front-rear position of the operation pedal 18 from the vehicle front end position shown by the solid line in FIG. 1 to the vehicle rear end position shown by the one-dot chain line in FIG. do not have to.

The rotating sleeve 20 has a structure as shown in FIGS.
As can be seen from FIG. 6, a rotating member 86 protruding vertically upward is integrally attached between the operation pedal 18 and the shaft 50, and the support shaft 16 of FIG. It can be rotated to the right. With the operation pedal 18 in the original position, as is apparent from FIGS. 1 and 6,
Even if the shaft 50 is rotated counterclockwise when viewed from the right side of each drawing, the tip engaging portion 50a and the rotating member 86 do not interfere with each other, but the operation pedal 18 is depressed to operate the shaft 50. In the state where the rotating member 86 is rotated to the position indicated by the alternate long and short dash line in FIG. 2, when the shaft 50 tries to rotate counterclockwise as shown in FIG. 2, the tip engaging portion 50a engages with the rotating member 86. And further rotation is blocked. In this way, by engaging the tip end engaging portion 50a with the rotating member 86, the engagement state between the lock pin 54 and the engaging hole 62 is maintained, and the stepping reaction force acting on the support shaft 16 causes sliding. The member 34 is prevented from shifting toward the vehicle rear side.

Although not shown, the operating pedal 18 is operated in a state in which the shaft 50 is pivotally operated to the unlock position and the tip engaging portion 50a is oriented substantially horizontally.
When the foot is depressed from the original position, the tip engaging portion 50
Since a is located on the rotation path of the rotation member 86, the rotation member 86 that is about to rotate contacts the tip end engaging portion 50a, and the operation pedal 18 can hardly rotate. Therefore, when the operation pedal 18 is adjusted back and forth, the operation pedal 18 is always held at the substantially original position, and the operation pedal 18 is stepped on in an unstable state where the slide member 34 is not reliably positioned. Is avoided. In this embodiment, the tip end engaging portion 50a and the rotating member 86 constitute a rotation limiting means.

When adjusting the front-back position of the operation pedal 18 in the brake pedal device 10 as described above, when adjusting the operation pedal 18 from the front side to the rear side of the vehicle, the handle 68 is gripped to lock the shaft 50. From the position to the unlock position, the lock pin 54 and the engagement hole 6 are rotated.
2 is released, the shaft 50 is pulled out against the biasing force of the compression coil spring 88, and the slide member 34 is moved to the vehicle rear side, so that the operation pedal 18 is moved to a desired position on the vehicle rear side. Can be translated. At this time, the release grip 84 may be gripped to release the engagement between the pole 74 and the ratchet member 72. Further, when adjusting the operation pedal 18 from the rear side to the front side of the vehicle, the shaft 50 is rotated from the locked position to the unlocked position, and the release cable 78 is pulled by the release grip 84. By pushing 50 forward,
The operation pedal 18 can be moved in parallel to a desired position on the front side of the vehicle. After the parallel movement, when the release cable 78 is pulled, the release cable 78 is returned to engage the pawl 74 and the ratchet 72, and the shaft 50 is rotated to the lock position to engage the lock pin 54 and the engagement hole. Positioning is performed by engagement with 62.

Here, in this embodiment, since the entire operation pedal 18 is moved in parallel in the front-back direction,
The posture and height position of the pedal pad 26, regardless of the front-back adjustment,
The lever ratio is maintained constant, and the required pedaling force and other pedaling characteristics do not change. Moreover, while the slide member 34 supporting the operation pedal 18 is moved back and forth by the shaft 50 and is positioned by the rotation operation of the shaft 50, the pawl 74 and the ratchet member 72 mesh with each other. Since the operation pedal 18 and the rod 32 are engaged with each other by the needle, the front and rear adjustment of the operation pedal 18 can be easily and smoothly performed, and a plurality of screw shafts can be driven by an electric motor as in the conventional case. Compared with the case where the connection position between the operation pedal and the action member is moved back and forth by rotating in synchronism, the structure of the device is simpler, and there is an advantage that it can be configured to be robust, lightweight and inexpensive.

On the other hand, since the shaft 50 and the rotating sleeve 20 are provided with the tip engaging portion 50a and the rotating member 86 which are engaged with each other, the shaft is operated when the operation pedal 18 is depressed. 50 rotates from the lock position to the unlock position, and the lock pin 5
4 and the engagement hole 62 are engaged, the positioning of the slide member 34 is not released and the slide member 34 is not moved in the front-rear direction. You can certainly avoid the problem of being unable to do so. On the contrary, when the shaft 50 is rotated to the unlocked position to adjust the operation pedal 18 back and forth, the rotating member 86 contacts the tip engaging portion 50a even when the operation pedal 18 is depressed. Since the operation pedal 18 cannot be stepped on by contact, the operation pedal 18 is always held in the original position when performing the front-rear adjustment, and the operation pedal 18 is prevented from being stepped on while the position of the slide member 34 is unstable. .

Further, in this embodiment, the release cable 78
The release grip 84 for pulling the
In the vicinity of the handle 68 for operating 0, the shaft 50
Since they are arranged so as to be movable in the axial direction, the operating parts thereof can be configured simply and compactly, and can be arranged in front of the driver's seat without obstruction. Further, when the handle 68 is gripped to operate the shaft 50, the release grip 84 can be gripped at the same time to pull the release cable 78, and the handle 68 can be pivoted or moved back and forth while gripping the release grip 84. The shaft 50 and the release cable 7 can be moved.
Operation 8 can be easily performed with one hand.

Next, another embodiment of the present invention will be described. The same parts as those in the above-described embodiment are designated by the same reference numerals and the description thereof will be omitted. In the embodiment shown in FIG. 8, the form of the connecting mechanism between the operation pedal 18 and the rod 32 in the brake pedal device 10 described above is partially different. In the brake pedal device 90, the guide member 8
The guide member 92 guides and holds the ratchet member 72 and the pole 74 in a meshable state similarly to 0, and defines the posture of the ratchet member 72 so that a plurality of meshing teeth are continuous in the vehicle front-rear direction. , Is attached to the operation pedal 18 so as to be rotatable around the pin 82, and straddles between the guide member 92 and the side surface portion 34b of the slide member 34, so that the operation pedal 18 can be depressed. Instead, a link 94 is provided as a link member for keeping the posture of the guide member 92 constant. Link 9
Reference numeral 4 is connected to the slide member 34 and the guide member 92 via a pair of upper and lower connecting pins 96 and 98 so as to be rotatable about an axis substantially parallel to the support shaft 16, respectively. Each connecting position is predetermined so that a quadrangle formed by connecting the connecting pin 96 and the connecting pin 96 to each other forms a substantially parallelogram. As can be seen from FIG. 9 which is a sectional view taken along line IX-IX in FIG. 8, the guide member 92 has a support portion 92a extending from one end near the pin 82 to the left side in FIG. The connecting pin 98 is connected. Further, one end of the outer casing 79 of the release cable 78 is fixed to a part branched upward from the middle, and one end of the compression coil spring 76 is locked.

Since the four-bar rotary chain composed of the operation pedal 18, the guide member 92, and the link 94 has a substantially parallelogram shape, when the operation pedal 18 is depressed and rotated, the guide member 92 is moved. Can be translated. As a result, as shown in FIG. 10, the ratchet member 72 is moved in a substantially straight line along the longitudinal direction of the rod 32 with a slight vertical movement, and the rod 32 is pressed forward of the vehicle. The rod 32 is connected to the ratchet member 72 via the clevis 28 and the clevis pin 29 so as to be relatively rotatable about an axis parallel to the support shaft 16 as in the above-described embodiment. As described above, when the ratchet member 72 is in a substantially constant posture, the rod 3
Since it can be moved substantially linearly in the longitudinal direction of 2, the vertical fluctuation of the position of the clevis pin 29 is small as compared with the above-described embodiment, and no twisting occurs. This means that the operating pedal 18
When the position in the vehicle front-rear direction is adjusted to the vehicle rear side, in other words, it becomes remarkable when the distance between the support shaft 16 and the clevis pin 29 in the vehicle front-rear direction increases. Note that, in FIG. 10, the slide member 34 is moved to the vehicle rear side by the pulling-out operation of the shaft 50, and the lock pin 54 is engaged with the middle one of the five engagement holes 62 to perform positioning. The operation pedal 18 is adjusted to the intermediate position of the front-rear adjustment stroke, and the pedal is depressed. Incidentally, in the case of the brake pedal device 10 described above, the operation pedal 1
As the position of 8 is adjusted toward the rear of the vehicle, the clevis pin 2
The position of 9 moves up and down greatly when stepping on.

In the embodiment of FIG. 11, the operation pedal 18 is used.
1 shows an example in which the connection between the rod 32 and the rod 32 is further different. In the brake pedal device 100, the guide member 102 is the same as the guide member 80 in the operation pedal 1.
8 is fixed to the guide member 10.
2, the lower guide surface 102a that supports the ratchet member 72 has a curved shape that is convex upward in the vehicle front-rear direction. Further, the ratchet member 72 connected to the rod 32 via the connecting member 104 is
On the other hand, they are integrally connected to each other such that they cannot rotate relative to each other around the axis parallel to the support shaft 16, and are maintained in a posture parallel to the rod 32. For this reason, the ratchet member 72 is maintained by the guide member 102 between the pawl 106 similar to the pawl 74 and the meshing teeth 70, while the posture thereof is regulated as the operation pedal 18 rotates. Therefore, relative rotation with respect to the guide member 102 and the pole 106 when the operation pedal 18 is depressed is allowed. In this case, the pawl 106 has a meshing tooth 7 adjacent to the pole 106 while maintaining meshing with the meshing tooth 70.
A notch 108 is provided for avoiding interference with 0. Therefore, also in this embodiment, since the ratchet member 72 is moved substantially linearly in the longitudinal direction of the rod 32 in a substantially constant posture, the rod 32 swings during the stepping operation regardless of the forward / backward adjustment of the operation pedal 18. Is small.

On the other hand, the embodiment shown in FIG. 12 shows an example in which the form of the slide member 34 is different. In the operation pedal device 110, the side surface portion 34a of the slide member 34 extends downward. The slide member 112 formed in the above is disposed. The slide member 112 is provided with a rotating shaft 114 and a cable guide 116 on a side surface portion 112a thereof extending downward so that an accelerator pedal 118 can be arranged adjacent to the operation pedal 18 which is a brake pedal. Has become. An accelerator cable 120 is guided to the cable guide 116 and an outer casing 122 thereof is fixed, while an accelerator pedal 118 is provided in the through hole 12 on the rotating shaft 114.
It is fitted so as to be rotatable around the shaft center via 4 and is prevented from coming off by an E-shaped retaining ring 126. Then, the accelerator cable 120 is locked to the locking portion 118a provided on the upper portion of the accelerator pedal 118. In the case of such an operation pedal device 110, since the front / back adjustment of the accelerator pedal 118 is performed at the same time as the front / rear adjustment of the brake pedal (operation pedal) 18, it is compared with the case where they are separately adjustable in the front / back direction. As a result, the device is simple and inexpensive, and the front-back adjustment is easy. Incidentally, in FIG. 12, the illustration of the shaft 50 and the like is partially omitted.

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 positioning mechanism is formed by the engagement of the lock pin 54 provided upright on the shaft 50 and the plurality of engagement holes 62 formed in the bracket 14, but the bracket 14 is provided with the positioning mechanism. One engaging projection is provided and a plurality of engaging recesses are provided on the shaft 50, and the shaft 50 is positioned at a plurality of positions in the vehicle front-rear direction by the engagement of the engaging projections with the engaging recesses. Is also possible.

Further, in the above embodiment, the slide member 34 is indirectly engaged with the bracket 14 via the lock pin 54 of the shaft 50.
As shown in FIG. 3, the slide member 34 is provided with a protrusion pin 132 that can be pushed out against the biasing force of the compression coil spring 130, and a cam 134 that engages with the protrusion pin 132 is integrally provided on the shaft 50. It is also possible to configure the positioning mechanism such that the protrusion pin 132 is engaged with the engagement hole 136 of the side surface portion 14a by the cam 134 that is rotated together with the shaft 50, and the slide member 34 is directly engaged with the bracket 14. Is.

In the above embodiment, there are a total of 5 engaging holes 6
Although 2 is provided in the front-rear adjustment stroke, the number of the engagement holes 62 may be appropriately changed, and the front-rear adjustment stroke may be increased or decreased as necessary.

Further, in the above embodiment, the ratchet member 72
The pitch of the meshing teeth 70 is the same as the pitch of the engaging holes 62 of the bracket 14, but the pitch of the meshing teeth 70 may be any pitch smaller than the pitch of the engaging holes 62. .

Further, in the above-described embodiment, the pole 74 is provided on the operation pedal 18 side and the ratchet member 72 is provided on the rod 32 side. However, the ratchet member is provided on the operation pedal 18 side and the pole is provided on the rod 32 side. It may be provided.

In the above embodiment, the compression coil spring 76 as the second spring is the release cable 7.
Although it is arranged around the outer circumference of 8, the other spring members such as a tension coil spring and a torsion coil spring can be used if the pole 74 can be urged in a direction to engage with the ratchet member 72. It is possible to arrange it between other members such as.

In the above embodiment, the slide member 34,
Although 112 is configured to be relatively horizontally moved in the front-rear direction of the vehicle, for example, by tilting the arrangement direction of the shaft 50 (the forming direction of the elongated holes 22 and 24) to the front of the vehicle. It is also possible to make a relative movement in the vertical direction to some extent and to adjust not only in the horizontal direction but also in the height direction.

Although the shaft 50 is biased to the lock position by the torsion coil spring 64 in the above embodiment, another spring such as a tension coil spring may be used to bias the shaft 50 to the lock position. Of course, the engaging hole 62 may be L-shaped, and the shaft 50 may be pivoted to the lock position and then slightly moved in the vehicle front-rear direction so as to be non-rotatably engaged. .

Further, in the above embodiment, the support shaft 16 has the elongated hole 2.
The slide member 34 is movably supported by the bracket 14 by being engaged with the second and the second shafts 24 and the shaft 50 is inserted through the side surface portion 15 of the bracket 14. The slide member 34 may be mounted on the bracket 14 so as to be movable in the vehicle front-rear direction by a rod or the like.

Further, in the above-mentioned embodiment, the rotating member 86 is formed separately from the operation pedal 18, but the operation pedal 18
A rotating member may be integrally provided with the rotating member.

Although the shaft 50 and the like are formed on the right side of the operation pedal 18 in FIGS. 2 and 9 in the above-described embodiment, they may be formed on the left side of the operation pedal 18, and the operation pedal device may be installed in the vehicle. It is also possible to make it compact in the width direction.

Further, although the operation pedal devices of the above-described embodiments were applied to the brake pedal device for pressing the rod 32, the accelerator pedal device or the link or the like configured to pull the accelerator cable is used for accelerator operation. The present invention can be applied to an accelerator pedal device that transmits a quantity, and can also be applied to other operation pedal devices such as a clutch pedal device. It is also possible to dispose both the brake pedal and the clutch pedal in parallel on one slide member.

Although not illustrated one by one, the present invention can be implemented 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.

FIG. 2 is a sectional view taken along line II-II in FIG.

3 is a perspective view of a bracket in the brake pedal device of FIG. 1. FIG.

FIG. 4 is a perspective view of a slide member in the brake pedal device of FIG.

5 is a perspective view of a front and rear operation member in the brake pedal device of FIG. 1. FIG.

FIG. 6 is a plan view showing a partial cutaway of a main part of the brake pedal device of FIG.

7 is a sectional view taken along line VII-VII in FIG.

FIG. 8 is a partially cutaway front view showing another embodiment in which the form of the connecting mechanism between the operation pedal and the action member is different.

9 is a sectional view taken along line IX-IX in FIG.

10 is a diagram showing a state in which the operation pedal of the brake pedal device of FIG. 8 is adjusted to an intermediate position in the vehicle front-rear direction and the operation pedal is depressed.

FIG. 11 is a partially cutaway front view showing another embodiment in which the form of the connecting mechanism between the operation pedal and the action member is further different.

FIG. 12 is a diagram showing yet another embodiment in which an accelerator pedal can be integrally attached to a slide member to which a brake pedal is attached.

FIG. 13 is a partial cross-sectional view illustrating a different aspect of the positioning means with which the bracket and the slide member are directly engaged with each other.

[Explanation of symbols]

10, 90, 100: Brake pedal device (operation pedal device) 12: Vehicle body 14: Bracket 18: Operation pedal 32: Rod (action member) 34: Slide member 44: Stopper 46: Return spring (first spring) 50: Shaft (Front-rear operation member) 50a: Tip engaging portion (rotation limiting means) 54: Lock pin (positioning mechanism) 62: Engagement hole (positioning mechanism) 72: Ratchet member 74, 106: Pole 76: Compression coil spring (No. 2 Spring) 78: Release cable 86: Rotating member (rotation limiting means) 110: Operation pedal device 112: Slide member 118: Accelerator pedal 120: Accelerator cable 122: Outer casing 130: Compression coil spring (positioning mechanism) 132: Overhanging pin (positioning mechanism) 1 4: a cam (positioning mechanism) 136: engaging hole (positioning mechanism)

Claims (4)

[Claims] 1. An operating member, which is engaged with an operating pedal, which is rotatably mounted on a bracket fixed to a vehicle body, is depressed to rotate the operating pedal from its original position. An operation pedal device capable of moving the position of the operation pedal in the front-rear direction of the vehicle while pressing or pulling, wherein the bracket is movably arranged in the front-rear direction of the vehicle and A slide member to which the operation pedal is attached so as to be rotatable about a substantially horizontal and substantially horizontal rotation axis, and an original position of the operation pedal provided on the slide member and brought into contact with the operation pedal. And a first spur that is disposed straddling the operation pedal and the slide member, and that always urges the operation pedal in the direction of abutting the stopper. And a front-rear operating member disposed on the slide member such that the front-rear operating member is relatively rotatable about one axis substantially parallel to the front-rear direction of the vehicle and is immovable relative to the one-axis direction. When the slide member and the bracket are engaged with each other so as not to move relative to each other in the vehicle front-rear direction by being rotated to a lock position around the uniaxial center, the slide member is positioned at a plurality of positions in the vehicle front-rear direction. , The front-rear operating member is pivotally operated to an unlock position around the uniaxial center to release the engagement between the slide member and the bracket to allow the slide member to move in the front-rear direction of the vehicle. The positioning mechanism is provided on one or the other of the operation pedal and the action member arranged so as to be relatively movable in the vehicle front-rear direction, and is engaged with each other by being meshed with each other. A pole and a ratchet member that prevent relative movement in the direction of transmitting the applied stepping force to the action member at a plurality of positions in the vehicle front-rear direction, and a second spring that normally urges the pole in a direction that meshes with the ratchet member. When one end of the pawl is engaged with the pawl and the other end is pulled, the pawl is rotated against the urging force of the second spring to engage with the ratchet member. A release pedal for releasing the operation pedal device, which is adjustable in the front-rear direction. 2. The front-rear operation member is rotated between the lock position and the unlock position side between the front-rear operation member and the operation pedal while the operation pedal is stepped on. The front-rear adjustable operation pedal device according to claim 1, further comprising: rotation restricting means for preventing the rotation toward the unlock position side by being engaged with each other. 3. A guide member for maintaining the meshed state of the pawl and the ratchet member and defining the posture of the ratchet member in the meshed state such that a plurality of meshing teeth are continuous in the vehicle front-rear direction. The guide member is disposed so as to be rotatable about an axis parallel to the rotation axis with respect to the pedal, straddles the guide member and the slide member, and is depressed when the operation pedal is depressed. The operation pedal device according to claim 1 or 2, further comprising a link member for substantially parallel translation of the operation pedal device. 4. The operation pedal is a brake pedal, an outer casing of an accelerator cable is fixed to the slide member, and the accelerator pedal connected to the accelerator cable is rotatable separately from the brake pedal. The operation pedal device according to any one of claims 1 to 3, wherein the operation pedal device is adjustable in the longitudinal direction.