JPH10264785A - Structure around vehicular pedal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To interrupt a load transmission path from parts around a vehicular pedal to the vehicular pedal when an external force not smaller than a predetermined value works from in front of the vehicle. SOLUTION: A bracket 54 which is made lower in rigidity at its upper edge than at its lower edge is interposed between a dash panel 16 and a brake booster 22. Further, a through hole in a crevice pin 70 by which a crevice 64 in the end of a push rod 42 projecting from the brake booster 22 is coupled to a brake pedal 10 is a notched part of a predetermined shape. Therefore, when an external force not smaller than a predetermined value works on a master cylinder 24 and the brake booster 22 from in front of the vehicle, the bracket 54 is deformed, rotating and displacing the brake booster 22 almost toward the underside of the vehicle. Then the crevice pin 70 is released from the notched part of the brake pedal 10. Therefore, a load transmission path is interrupted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle pedal peripheral structure.

[0002]

2. Description of the Related Art Conventionally, various configurations have been devised as countermeasures when an external force exceeding a predetermined value acts from the front of a vehicle. As an example of this kind of countermeasure, there is a configuration disclosed in Japanese Utility Model Laid-Open No. 1-73664.

[0003] Briefly, as shown in FIG.
In the configuration disclosed in this publication, the steering column 402 covering the steering shaft 400 is
04 and a pair of side plate members 406, a tilt bracket 408, and a shaft 41 penetrating between the side plate members 406 and supporting a lower edge of the steering column 402.
0 supports the vehicle.

Further, the tilt bracket 408 described above is used.
A knee protector 412 having a substantially circular arc shape and capable of being elastically deformed is provided below. The knee protector 412 is elastically supported on the lower edge side of the steering column 402 via an elastically deformable stay 414.

According to the above structure, when an external force equal to or more than a predetermined value acts from the front of the vehicle, the occupant attempts to inertia move toward the front of the vehicle, and accordingly, the legs of the occupant flex in the same direction with the knee as a starting point. Try to inertia move to. For this reason,
If the knee protector 412 is not provided, the occupant's knee may contact the tilt bracket 408. However, if knee protector 412 is arranged below tilt bracket 408 as described above, the occupant's knee only comes into contact with knee protector 412.

It is considered that such a configuration in which the knee protector 412 is provided is effective as a countermeasure when an external force equal to or more than a predetermined value acts from the front of the vehicle. However, as a countermeasure in relation to the occupant's legs. It is also possible to approach from a different viewpoint, and it is important from the viewpoint of multiple protection that the countermeasures in relation to the occupant's legs be multifaceted.

As a result of repeated experiments conceived from such a viewpoint, the present inventor focused on the displacement behavior of peripheral components of a vehicle pedal when an external force of a predetermined value or more acts from the front of the vehicle, and devises this. As a result, it was concluded that cutting off the load transmission path from the peripheral components of the vehicle pedal to the vehicle pedal would also be an extremely effective measure.

In view of the above findings, the present invention provides a vehicle pedal peripheral structure capable of cutting off a load transmission path from a vehicle pedal peripheral component to a vehicle pedal when an external force greater than a predetermined value acts from the front of the vehicle. The goal is to obtain

[0009]

According to the first aspect of the present invention, there is provided a suspension which is swingably disposed in a vehicle interior space side with respect to a vehicle body side component member which separates an engine room and a vehicle interior space. A vehicle pedal of the formula, a hydraulic pressure conversion means arranged on the engine room side with respect to the vehicle body side component, a hydraulic pressure converting means for converting the pedaling force applied to the tread surface of the vehicle pedal into a hydraulic pressure, and a vehicle body side component A transmission unit that is disposed in a penetrating state, connects the hydraulic pressure conversion unit and the vehicle pedal, and transmits the pedaling force applied to the tread surface of the vehicle pedal to the hydraulic pressure conversion unit. A peripheral structure for the pedal, interposed between the fluid pressure conversion means and the vehicle-side component,
Displacement for rotationally displacing the hydraulic pressure conversion means such that the rear part is displaced substantially downward of the vehicle relative to the front end side when an external force greater than or equal to a predetermined value acts substantially on the rear side of the vehicle on the hydraulic pressure conversion means. And a release means provided at a connection portion between the transmission means and the vehicle pedal, and releasing means for releasing the connection state between the transmission means and the vehicle pedal by rotationally displacing the hydraulic pressure conversion means by the displacement means. It is characterized by:

According to a second aspect of the present invention, there is provided a vehicle pedal peripheral structure according to the first aspect, wherein an upper portion disposed above the transmission means and a lower portion disposed below the transmission means. A lower portion, the rigidity of the upper portion in the vehicle longitudinal direction is set relatively lower than the rigidity of the lower portion in the vehicle longitudinal direction, thereby constituting the displacement means. I have.

According to a third aspect of the present invention, there is provided a vehicle pedal peripheral structure according to the first or second aspect, wherein the coupling rigidity between the transmission means and the vehicle pedal is controlled by a normal operation of the vehicle pedal. The release means is characterized in that the release means is configured to be set high with respect to the load acting direction at the time and set low with respect to the load acting direction accompanying the rotational displacement of the hydraulic pressure converting means.

The operation of the present invention described in claim 1 is as follows. The suspension-type vehicle pedal arranged so as to be able to swing toward the vehicle interior space with respect to the vehicle body side component member, and the fluid pressure conversion means arranged at the engine room side with respect to the vehicle body side component member include: Since it is connected via the transmission means arranged in a state penetrating the side component member, during normal vehicle traveling, when a tread force is applied to the tread surface of the vehicle pedal, the tread force is transmitted via the transmission means. The pressure is transmitted to the hydraulic pressure converting means and converted into hydraulic pressure. Such a configuration is the peripheral structure of the vehicle pedal on which the present invention is based.

Here, in the present invention, when an external force of a predetermined value or more substantially toward the rear side of the vehicle acts on the hydraulic pressure converting means, the displacement means interposed between the hydraulic pressure converting means and the vehicle-body-side member causes The hydraulic pressure conversion means is rotationally displaced such that the rear end side is displaced substantially downward of the vehicle relative to the front end side. Therefore, the coupling state between the transmission means and the vehicle pedal is released by the release means provided at the coupling portion between the transmission means and the vehicle pedal.

According to the second aspect of the present invention, the vehicle includes an upper portion disposed above the transmission means and a lower portion disposed below the transmission means. By setting the rigidity in the front-rear direction relatively lower than the rigidity of the lower portion substantially in the vehicle front-rear direction, the above-described displacement means is constituted. , The upper portion relatively deforms substantially toward the rear of the vehicle more than the lower portion. As a result, a difference occurs in the amount of displacement between the upper portion and the lower portion, and the hydraulic pressure conversion means is displaced toward the vehicle lower side relative to the front end side with respect to the rear end side in accordance with the difference in the displacement amount. It is rotationally displaced. As described above, in the present invention, the hydraulic pressure conversion means can be rotationally displaced only by relatively adjusting the rigidity of the upper portion and the lower portion.

According to the third aspect of the present invention, the coupling stiffness between the transmission means and the vehicle pedal is set higher in the load acting direction at the time of normal operation of the vehicle pedal. The normal operation of the pedal does not release the connection between the transmission means and the vehicle pedal. On the other hand, the coupling stiffness between the transmission means and the vehicle pedal is set low with respect to the direction of the load acting due to the rotational displacement of the hydraulic pressure conversion means, so that an external force exceeding a predetermined value is applied to the hydraulic pressure conversion means. In the case of the rotational displacement caused by the action, the coupling state between the transmission means and the vehicle pedal is easily released. As described above, according to the present invention, by simply setting the coupling stiffness between the transmitting means and the vehicle pedal for each load acting direction, the rigidity for the pedal operation load is ensured and the transmitting means and the vehicle pedal when the external force is applied to the hydraulic pressure converting means. And the release of the connection state can be made compatible.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 schematically shows a peripheral structure of a suspension type brake pedal 10 as a "vehicle pedal" according to the present invention. Hereinafter, the overall configuration of the peripheral structure including the brake pedal 10 will be described with reference to FIG.

A dash panel 16 as a "vehicle-side component" in the present invention is disposed substantially vertically at a position (separating) between the engine room 12 and the vehicle interior space 14. The upper end of the dash panel 16 is fixed by spot welding or the like to the front side of the cowl inner panel 18 which is arranged with the vehicle width direction as a longitudinal direction and forms a part of the cowl. A cowl inner reinforcement 20 having a weld nut 19 fixed to the inner surface is fixed to the rear end side of the cowl inner panel 18 by spot welding or the like. The lower end of the dash panel 16 is fixed to a floor panel (not shown) by spot welding or the like.

On the front side of the dash panel 16 described above, a brake booster 22 for increasing the pedaling force of the occupant applied to the brake pedal 10 described later, and the pressure increased by the brake booster 22 is converted into a hydraulic pressure. And a reservoir tank 26 for storing and replenishing brake fluid following a change in volume of the hydraulic system. Note that the brake booster 20 and the master cylinder 22 correspond to a “hydraulic pressure converter” in the present invention.

On the other hand, on the rear side of the dash panel 16,
A pedal bracket 28 is provided. The pedal bracket 28 includes a base plate portion 30 that forms a seat for mounting to the dash panel 16, and the base plate portion 30.
And a pair of side plate portions 32 extending substantially in parallel to the vehicle rear side, and a top plate portion 34 that connects between the upper edges of these side plate portions 32. It is formed in an open substantially U-shape. The front end of the pedal bracket 28 (that is, the base plate portion 30) is fixed to the dash panel 16 (this point will be described later), and the rear end of the pedal bracket 28 (that is, the top plate portion 34).
Rear end) is the cowl inner reinforcement 20 described above.
Is fixed by a fixing bolt 36 and a weld nut 19.

A suspended brake pedal 10 is arranged between the pair of side plates 32 of the pedal bracket 28 described above. Brake pedal 10
Is configured to include a pedal support portion 38 formed by appropriately bending a narrow plate material, and a pedal pad 40 provided at a lower end portion of the pedal support portion 38. A brake booster 2 is provided at an intermediate portion of the pedal support portion 38.
A push rod 42 projecting from the dash panel 2 and penetrating through the dash panel 16 is connected to be relatively rotatable, and the pedal pad 4 as a “tread surface” in the present invention.
The pedaling force of the occupant is given to 0.

A rotary shaft 44 is provided at the upper end of the pedal support 38. The rotary shaft 44 is pivotally supported by the pair of side plates 32 of the pedal bracket 28, so that the brake pedal 10 Are swingably supported. Note that when briefly touching an example of the configuration of the rotating shaft portion 44, a substantially cylindrical pedal boss is inserted into a through hole formed at the upper end of the pedal support portion 38, and
Cylindrical bushings are fitted into both ends of the pedal boss, and after a cylindrical collar is inserted into both bushes, mounting bolts 46 are inserted from the outside of one side plate portion 32 and the other side plate is inserted. The nut 48 is screwed from the outside of the portion 32 via a washer to form the rotating shaft portion 44.

Next, the structure of the displacement means for rotating and displacing the hydraulic pressure conversion means, which is a main part of the present embodiment, so that the rear side thereof is displaced substantially below the vehicle, and the push rod 42 and the brake under a certain condition The structure of the releasing means for releasing the connection with the pedal 10 will be described in detail in this order.

Between the rear end of the brake booster 22 and the dash panel 16, a main body 50 bent in a substantially U-shape in a side view, and a connecting portion connecting the open ends of the main body 50 are provided. 52, a frame-shaped bracket 54 constituted by the above is interposed.

The main body 50 of the bracket 54 has a bottom wall 50A having a substantially longitudinal direction of the vehicle and a predetermined longitudinal dimension, and bent from a front end and a rear end of the bottom wall 50A. And a front wall portion 50B and a rear wall portion 50C arranged substantially in the vehicle vertical direction. The front wall portion 50 </ b> B of the main body 50 is connected to a stud bolt 56 protruding from the brake booster 22 by screwing a nut 58 to the brake booster 2.
2 is fixed to the rear end. The rear wall 50C of the main body 50 is disposed in contact with the front side of the dash panel 16, and in this state, the fixing bolt 62 is screwed to the weld nut 60 welded to the rear side of the base plate 30. As a result, the rear wall portion 50C is
It is fastened to the dash panel 16 together with 0. Further, the longitudinal dimension of the bottom wall portion 50A is set in consideration of the rotational displacement of the brake booster 22 described below substantially toward the lower side of the vehicle.

The connecting portion 52 of the bracket 54 is
No. 0 is fixed by spot welding or the like to each of the bent front ends of the front wall 50B and the rear wall 50C. Further, the connecting part 5
A bent portion 52 is disposed substantially parallel to the rear wall portion 50C with the vehicle front-rear direction as a plane direction, and a bent portion 52 bent at a predetermined angle toward the bottom wall portion 50A at an intermediate portion in the longitudinal direction.
A is formed. Therefore, when the connection portion 52 receives a load substantially in the front-rear direction of the vehicle, stress concentration tends to occur in the bent portion 52A. In addition, the thickness of the connecting portion 52 is set to be thinner than the thickness of the main body 50. Therefore, the rigidity of the connection portion 52 in the substantially vehicle longitudinal direction is lower than the rigidity of the bottom wall portion 50A of the main body 50 in the substantially vehicle longitudinal direction.

On the other hand, a clevis 64 formed in a U-shape in plan view is attached to the tip of the push rod 42 projecting from the brake booster 22. Note that the push rod 42 and the clevis 64 correspond to the “transmission means” in the present invention. As shown in FIG. 3, coaxial through holes 66 are formed on both sides of the clevis 64, and a boss 68 with a hexagonal hole is formed on the outer surface of one side.
Is fixed. A clevis pin 70 formed in a predetermined shape is inserted into the boss 68. The clevis pin 70 includes a shaft portion 70A having a smooth peripheral surface, a fitting portion 70B formed on one end of the shaft portion 70A and fitted into a hexagonal hole of the boss 68, and a fitting portion 70B. A disc-shaped flange portion 70C formed adjacent to the
It is constituted by. Therefore, when the fitting portion 70B of the clevis pin 70 is fitted into the hexagonal hole of the boss 68, the clevis pin 70 does not rotate relative to the clevis 64 and functions as a detent.

A small hole 72 penetrating in the radial direction is formed at the tip of the shaft 70A of the clevis pin 70. A split pin 74 that functions as a stopper for the clevis pin 70 to be removed from the clevis 64 is inserted into the small hole 72 and locked. Further, an annular locking groove 76 is formed near the tip of the shaft 70A of the clevis pin 70. The locking groove 76 has one end 7
8A is a return spring 78 locked on the body side
Is locked at the other end 78B. As a result, the brake pedal 10 is constantly biased in a direction to return to the initial position. At a predetermined position on the rear side of the brake pedal 10, a pedal stopper (not shown) is provided. In addition, a predetermined curved concave groove 80 (see FIG. 4) is provided at a predetermined position on the outer periphery of the shaft groove 70A where the locking groove 76 is formed.
Reference) is formed. Accordingly, the brake pedal 1 in which the clevis pin 70 does not rotate relative to the clevis 64
At the time of normal operation, the other end portion 78B of the return spring 78 is securely held in the locking groove 76, but the brake booster 22 is rotationally displaced and the clevis pin together with the clevis 64 is described later. When 70 is rotated in the same direction, the other end 78 of the return spring 78
The tip of B is positioned relatively on the groove 80 so as to be easily detached.

Further, a notch 82 as a "release means" in the present invention, which is formed in a substantially keyhole shape in a side view, is provided on the front side of the pedal support portion 38 inserted between both sides of the clevis 64. Is formed. The notch 82 includes a holding portion 82A formed in a circular shape having a predetermined diameter, and a holding portion 8A.
Separation portion 82B formed in a quadrant hole communicating with 2A
And is configured. An elastically deformable drum-shaped bush 84 is fitted to the holding portion 82A. By inserting the shaft portion 70A of the clevis pin 70 into the bush 84, generation of abnormal noise and the like during normal operation of the brake pedal 10 is prevented.

The detaching portion 82B is formed in a range extending substantially from the front of the vehicle to substantially diagonally below the vehicle when viewed from the holding portion 82A. However, as never clevis pin 70 is detached from the detachment unit 82B during normal operation of the brake pedal 10, the upper edge 82B ₁ leaving portion 82B is positioned within the radial dimension of the clevis pin 70, further withdrawal unit the lower edge 82A of the lower edge 82B ₂ and the holding portion 82A of the 82B
A projection 82C protruding in the circumferential direction of the holding portion 82A is formed at a connection portion with the _first portion. Further, the protrusion 8
2C, by acting load equal to or greater than a predetermined value is substantially toward the vehicle obliquely downward side (lower edge 82B ₂ side of the derailed part 82B) via the clevis pin 70, leaving portions 82B from the holding portion 82A of the clevis pin 70 plastically deformed The protrusion amount and the like are set so as to allow the movement to. As described above, in the present embodiment, the coupling stiffness between the push rod 42 and the pedal support portion 38 is such that the load acting direction during the normal operation of the brake pedal 10 (substantially the vehicle front-rear direction;
And the load acting direction (substantially in front of the vehicle and obliquely downward) input from the clevis pin 70 to the pedal support 38 with the rotational displacement of the brake booster 22 described later. (In the direction of arrow B in FIG. 1).

Next, the operation and effect of this embodiment will be described. As shown in FIG. 1, when the brake is not operated, the brake pedal 10 is held at the initial position (the position where the pedal support 38 contacts the pedal stopper) by the urging force of the return spring 78. When the occupant applies a pedaling force to the pedal pad 40 of the brake pedal 10 from this state, the brake pedal 10 swings substantially around the rotation shaft 44 toward the front of the vehicle, and the push rod 42 is pressed substantially toward the front of the vehicle. . Thereby, the pedal pad 4
After the passenger's treading force given to 0 is transmitted to the brake booster 22 via the push rod 42 and is increased,
The pressure is converted into a hydraulic pressure by the master cylinder 24.

On the other hand, when an external force equal to or greater than a predetermined value acts from the front of the vehicle, the load at that time is input to the master cylinder 24 and the brake booster 22 from the front of the vehicle body. Here, in the present embodiment, the bracket 54 is interposed between the brake booster 22 and the dash panel 16, and the rigidity of the connecting portion 52 in the substantially vehicle longitudinal direction is substantially the same as that of the bottom wall 50 </ b> A of the main body 50 in the vehicle longitudinal direction. When the load is input to the master cylinder 24 and the brake booster 22, as shown in FIG.
Buckles toward the bottom wall 50A from the bent portion 52A. Therefore, the master cylinder 24 and the brake booster 22 are rotationally displaced substantially downward of the vehicle.

As described above, when the master cylinder 24 and the brake booster 22 are rotationally displaced substantially downward of the vehicle, the push rod 42 disposed so as to protrude from the brake booster 22 also attempts to rotationally displace in the same direction. . Therefore, the push rod 42 and the pedal support 38
A notch 82 of the pedal support portion 38, which is a connection portion between the two, applies a load substantially toward the front of the vehicle and obliquely downward (in the direction of arrow B in FIG. 1) via the clevis pin 70. Here, in the present embodiment, the holding portion 82A is attached to the pedal support portion 38.
And the lower edge of the lower edge 82B ₂ and the holding portion 82A of the withdrawal section 82B to form the notch 82 consisting of detachment portion 82B 82
By forming the protrusion 82C that protrudes in the circumferential direction of the holding portion 82A in the connection portion between A _1, since the set low binding stiffness of the load acting direction inputted from the clevis pin 70 to the pedal supporting portion 38, As described above, when a load is applied to the notch 82 of the pedal support portion 38 through the clevis pin 70 substantially toward the front of the vehicle and obliquely downward, the projection 82C is plastically deformed, and the clevis pin 70 is separated from the separation portion 82B. You. Thereby, the connection state between the push rod 42 and the brake pedal 10 is released. As a result, according to the present embodiment, when an external force equal to or more than a predetermined value acts from the front of the vehicle, the master cylinder 24 and the brake booster 2
The load transmission path from the second to the brake pedal 10 can be cut off.

Further, in the present embodiment, the clevis pin 7
0 is attached to the clevis 64 so as not to rotate relative to the clevis 64. Further, as shown in FIG. 4, a concave groove 80 is further formed in the locking groove 76 of the clevis pin 70. Accompanying clevis pin 7
0 is rotationally displaced in the direction of arrow B in FIG.
Of the other end portion 78 </ b> B in the circumferential direction shifts to the concave groove 80. Therefore, the other end portion 78 </ b> B of the return spring 78 relatively slides at an accelerated speed along the peripheral surface of the concave groove 80, and easily comes off the locking groove 76. Therefore, when the connection between the push rod 42 and the brake pedal 10 is released, the urging force of the return spring 78 does not reach the brake pedal 10 (see FIG. 2). As a result, according to the present embodiment, after the load transmission path from the master cylinder 24 and the brake booster 22 to the brake pedal 10 is cut off, the brake pedal 10 can be in a free state. For this reason, according to the present embodiment,
Not only is the load not input to the occupant's leg from the brake pedal 10, but also the occupant can easily push the brake pedal 10 substantially toward the front of the vehicle to secure a foot space.

As described above, according to the present embodiment, it is possible to suppress bending of the knees of the legs due to inertial movement of the occupant when an external force equal to or more than a predetermined value acts from the front of the vehicle.
As a result, the occupant's leg knees can be moved away from the steering column.

Although the above is the basic operation and effect of the present embodiment, the present embodiment also provides the operation and effect described below.

According to this embodiment, only by relatively adjusting the rigidity of the connecting portion 52 and the bottom wall portion 50A of the bracket 54 in the substantially longitudinal direction of the vehicle, the master cylinder 2
4 and the brake booster 22 can be rotationally displaced substantially downward of the vehicle, so that the structure can be simplified.

Similarly, according to the present embodiment, the coupling stiffness between the push rod 42 and the brake pedal 10 is set for each load application direction, that is, high for the load application direction during normal operation of the brake pedal 10, and By simply setting a lower value in the direction of the load applied to the pedal support portion 38 from the clevis pin 70 due to the rotational displacement of the brake booster 22, the rigidity against the pedal operation load is ensured and the master cylinder 24 and the brake booster 22 Push rod 42 and brake pedal 1 when external force is applied
Since the release of the coupling state with zero can be achieved at the same time, the structure can be simplified also in this regard.

In this embodiment, the present invention is applied to a suspended main brake pedal. However, the present invention is not limited to this, and can be applied to a suspended clutch pedal. It is. When the present invention is applied to a clutch pedal, the clutch master cylinder corresponds to the "hydraulic pressure conversion means" in the present invention.

In the present embodiment, the lower part of the rear end of the brake booster 22 is used as the center of rotation,
2 and the master cylinder 24 are rotationally displaced clockwise in the drawing, so that the push rod 42 protruding from the brake booster 22 is rotationally displaced in the same direction. So as to be displaced substantially below the vehicle relative to the front end side of the pressure conversion means,
Any configuration is possible as long as the hydraulic pressure conversion means is configured to rotate and displace.

Further, in the present embodiment, the connecting portion 52 located on the upper edge side and the bottom wall portion 5 located on the lower edge side between the brake booster 22 and the dash panel 16 as displacement means.
Although a configuration is adopted in which a bracket 54 having different rigidity in the vehicle longitudinal direction is interposed between 0A and 0A, the present invention is not limited to this, and only the connecting portion 52 corresponding to the upper portion and the bottom wall portion 50A corresponding to the lower portion are provided. A configuration may be adopted.

Further, in the present embodiment, in order to adjust the rigidity between the connecting portion 52 and the bottom wall portion 50A, the plate thickness is made different and the connecting portion 52 is provided with the bent portion 52A. Various configurations can be adopted. For example, a weak portion (a circular hole, an elliptical hole, a slit, etc.) may be formed at a longitudinal middle portion of the connecting portion 52, and a reinforcing portion (a bead, a rib, etc.) may be formed on the bottom wall 50A.

Further, in the present embodiment, the pedal support 3
The detaching means is formed by forming the notch 82 formed of the holding portion 82A, the detaching portion 82B, and the projection 82C in 8, but the invention is not limited to this, and various configurations can be adopted. For example, a normal circular hole for inserting a clevis pin is formed in the pedal support portion 38, while a clevis 64 is formed.
Notches of a predetermined shape having a function as notches 82 may be formed on both sides of the. In this case, the clevis 64 is cut out toward the upper edge of both sides.

In this embodiment, the clevis pin 70
To the other end 78B of the return spring 78,
When releasing the connection between the push rod 42 and the pedal support 38, the other end 78 of the return spring 78
Although the configuration in which B is removed from the clevis pin 70 is employed, the configuration is not limited to this, and a configuration in which the other end 78 </ b> B of the return spring 78 is directly engaged with the pedal support 38 may be employed. In this case, when the connection between the push rod 42 and the pedal support 38 is released, the urging force of the return spring 78 acts on the pedal support 38, but the brake pedal 10 abuts on the pedal stopper. It simply returns to the initial position.

[0045]

As described above, in the vehicle pedal peripheral structure according to the first aspect of the present invention, when the external force of a predetermined value or more acts substantially on the rear side of the vehicle, the hydraulic pressure conversion means is operated. Displacement means for rotating and displacing the means such that the rear end side is displaced substantially downward of the vehicle relative to the front end side is interposed between the fluid pressure conversion means and the vehicle body side component member,
Since the release means for releasing the connection state between the transmission means and the vehicle pedal by rotating and displacing the hydraulic pressure conversion means by the displacement means is provided at the connection portion between the transmission means and the vehicle pedal, the release means is not less than a predetermined value. When the external force acts from the front of the vehicle, there is an excellent effect that the load transmission path from the peripheral components of the vehicle pedal to the vehicle pedal can be cut off.

Further, according to the present invention, the vehicle pedal can be in a free state after the load transmission path is cut off. Therefore, according to the present invention, not only is the load not input from the vehicle pedal to the occupant's leg portion, but also the occupant can easily push the vehicle pedal substantially forward to secure the foot space. An excellent effect of being obtained is also obtained.

According to a second aspect of the invention, there is provided a vehicle pedal peripheral structure according to the first aspect, wherein the upper portion is disposed above the transmission means and the lower portion is disposed below the transmission means. Further, the rigidity of the upper portion in the longitudinal direction of the vehicle is set relatively lower than the rigidity of the lower portion in the longitudinal direction of the vehicle. The hydraulic pressure conversion means can be rotationally displaced such that the rear end side is displaced substantially toward the vehicle lower side relative to the front end side only by relatively adjusting the rigidity of the lower part and the rigid part. Has an excellent effect that simplification can be achieved.

According to a third aspect of the present invention, there is provided a vehicle pedal peripheral structure according to the first or second aspect, wherein the coupling rigidity between the transmission means and the vehicle pedal is controlled by a normal operation of the vehicle pedal. The release means described above is set high for the load acting direction at the time and low for the load acting direction accompanying the rotational displacement of the hydraulic pressure converting means. By simply setting the connection rigidity with the pedal for each load acting direction, it is possible to achieve both the securing of the pedal operation load and the release of the connection state between the transmission means and the vehicle pedal when an external force is applied to the hydraulic pressure conversion means. This has an excellent effect that the structure can be simplified.

[Brief description of the drawings]

FIG. 1 is a side view showing an overall configuration of a vehicle pedal peripheral structure according to an embodiment.

FIG. 2 is a side view corresponding to FIG. 1, showing a state where an external force equal to or more than a predetermined value acts from the front of the vehicle from the state shown in FIG.

FIG. 3 is an exploded perspective view showing a combined configuration of a brake pedal and a clevis shown in FIG. 1;

FIG. 4 is an enlarged sectional view showing a locked state when a return spring is assembled to a clevis pin.

FIG. 5 is a perspective view showing a conventional structure.

[Explanation of symbols]

 REFERENCE SIGNS LIST 10 brake pedal (vehicle pedal) 12 engine room 14 vehicle interior space 16 dash panel (vehicle side component member) 22 brake booster (fluid pressure converting means) 24 master cylinder (fluid pressure converting means) 40 pedal pad (tread surface) 42 push Rod (transmission means) 50A Bottom wall part (lower part) 52 Connection part (upper part) 54 Bracket (displacement means) 64 Clevis (transmission means) 82 Notch part (release means)

Claims (3)

[Claims] 1. A suspension type vehicle pedal which is swingably disposed on the vehicle interior space side with respect to a vehicle body side component member which separates an engine room and a vehicle interior space; And placed on the engine room side,
A hydraulic pressure converting means for converting the pedaling force applied to the tread surface of the vehicle pedal to a hydraulic pressure, and the hydraulic pressure converting means disposed in a state penetrating the vehicle body side component member and connecting the hydraulic pressure converting means and the vehicle pedal; And a transmitting means for transmitting the pedaling force applied to the tread surface of the vehicle pedal to the hydraulic pressure converting means, and a vehicle pedal peripheral structure comprising: When the external force of the predetermined value or more acts substantially on the rear side of the vehicle on the hydraulic pressure conversion means, the hydraulic pressure conversion means is rotated such that the rear side is displaced substantially downward of the vehicle relative to the front end side. Displacing means for displacing, a releasing means provided at a coupling portion between the transmitting means and the vehicle pedal, and releasing means for releasing the coupling state between the transmitting means and the vehicle pedal by rotationally displacing the hydraulic pressure converting means by the displacing means. Characterized by having Pedal around the structure for a vehicle. An upper portion disposed above the transmission means and a lower portion disposed below the transmission means; and a rigidity of the upper portion substantially in the vehicle longitudinal direction is substantially reduced by the lower portion. 2. The vehicle pedal peripheral structure according to claim 1, wherein the displacement unit is configured by setting the rigidity relatively lower than a rigidity in a vehicle front-rear direction. 3. 3. The coupling rigidity between the transmission means and the vehicle pedal is set higher in the load acting direction during normal operation of the vehicle pedal, and in the load acting direction accompanying the rotational displacement of the hydraulic pressure converting means. 3. The vehicle pedal peripheral structure according to claim 1, wherein the release unit is configured by setting the release unit low.