JP2003191829A - Pedal support structure for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pedal support structure for a vehicle that can secure a sufficient support force in normally operating the pedal for the vehicle and can certainly displace the tread of the pedal for the vehicle to a substantially front side of the vehicle in charging a predetermined high load on the front part of the vehicle. <P>SOLUTION: A pedal support 26 is divided to a front support 28 and a rear support 30, and the both are fastened together by a rotating shaft part 60 of a brake pedal 10. An engaging groove 80 is formed in the rear support 30, is engaged with a bolt 86 penetrating through the front support 28 in a normal operation, and is removed in charging the high load. Additionally, the rear support 30 is provided with a projection 88, interferes with the rear surface 56A of a pedal arm 56 to press it to the substantially front side of the vehicle in charging the high load. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle pedal support structure for swingably supporting a suspension type vehicle pedal.

[0002]

2. Description of the Related Art Generally, when a predetermined high load is applied to the front part of a vehicle, the deformation of the engine room is transmitted to the dash panel and the dash panel is displaced substantially rearward of the vehicle. Focusing on this phenomenon, there is a technology for rotationally displacing the pedal pad (the tread surface) of the suspension type vehicle pedal to the front side of the vehicle by utilizing the rearward displacement of the dash panel when a predetermined high load is applied to the front portion of the vehicle. It has already been proposed by the applicant of the present application (see, for example, Japanese Patent Application Laid-Open No. 9-123948).

The technique disclosed in the above publication will be briefly described below. A rotary shaft portion (pedal boss) is provided at an upper end portion of the suspension type brake pedal, and the brake pedal swings around the rotary shaft portion as a swing center. A pedal support (pedal bracket) pivotally supports the rotary shaft portion. The front end of the pedal support is fixed to the dash panel side, and the rear end is fixed to the instrument panel reinforcement side or the cowl side.

Here, in the technique disclosed in the above publication,
Long holes extending substantially in the vehicle front-rear direction are formed on both sides of the pedal support. Further, a highly rigid push plate extending substantially along the vehicle front-rear direction is arranged on the outer surface of each side of the pedal support. The front end of the push plate is fixed to the dash panel side together with the front end of the pedal support, and the rear end of the push plate is connected to the axial end of the rotary shaft. Further, in the state after connection, the rotary shaft portion is located at the front end portion of the elongated hole.

According to the above construction, when a predetermined high load is applied to the front portion of the vehicle and a load is input to the dash panel through the engine room, the dash panel is displaced substantially rearward of the vehicle, but the instrument panel reinforcement is used. Side or cowl side is hardly displaced. Therefore, a relative displacement occurs between them. Due to this relative displacement, a compressive force is applied to the pedal support substantially in the vehicle longitudinal direction. Therefore, the pedal support is deformed so as to be bent substantially in the front-rear direction of the vehicle, and accordingly, the highly rigid push plate moves the rotary shaft portion from the front end position to the rear end position of the elongated hole. This allows
The brake pedal is rotationally displaced about the connecting point with the push rod toward the front side of the vehicle, and as a result, the pedal pad is displaced toward the front side of the vehicle.

[0006]

However, in the case of the above configuration, the front end side of the pedal support is mounted on the dash panel side (first vehicle body side constituent member) and the rear end side of the pedal support is mounted on the dash panel side. When the relative displacement amount with respect to the instrument panel reinforcement side or the cowl side (second vehicle body side constituent member) is small, the pedal pad of the brake pedal may not be sufficiently rotationally displaced forward of the vehicle.

On the other hand, when the brake pedal is normally operated, an operating force to the lower side of the vehicle acts on the rotary shaft portion of the brake pedal. However, if the supporting rigidity against such operating force is not sufficiently secured. There is also a request not to.

In consideration of the above facts, the present invention can secure a sufficient supporting force during the normal operation of the vehicle pedal,
Moreover, it is an object of the present invention to provide a vehicle pedal support structure capable of reliably displacing the tread surface of the vehicle pedal toward the front side of the vehicle when a predetermined high load is applied to the vehicle front portion.

[0009]

According to a first aspect of the present invention, there is provided a pedal supporting structure for a vehicle according to the present invention, wherein a front end side is fixed to a first vehicle body side constituent member and a rear end side is formed from the first vehicle body side constituent member. Is also fixed to a second vehicle body-side component member arranged substantially on the rear side of the vehicle, and when the predetermined high load acts on the front portion of the vehicle, the second
In the pedal support that receives a compressive force in the vehicle front-rear direction due to the relative displacement of the first vehicle body-side component member with respect to the vehicle body-side component member, the rotary shaft portion that serves as the swing center of the suspension type vehicle pedal is pivotally supported. A vehicle pedal support structure,
The pedal support is divided substantially in the front-rear direction of the vehicle, and the divided rear end side of the support front part and the divided front end side of the support rear part are connected to each other so as to be rotatable relative to each other using a rotation shaft part of the vehicle pedal. At least one side of the support front portion and the support rear portion is provided between the support front portion and the support rear portion by an operation force substantially on the vehicle lower side acting on the rotating shaft portion during a normal operation of the vehicle pedal. To prevent downward relative convex rotation from occurring, and to allow upward convex relative rotation between the front support portion and the rear support portion when a predetermined high load is applied to the vehicle front portion. A coupling means is provided, and at least one side of the support rear portion and the vehicle pedal is directed upward between the support front portion and the support rear portion when a predetermined high load is applied to the vehicle front portion. When a convex relative rotation is generated, a forced displacement means is provided for forcibly rotationally displacing the vehicle pedal around the rotation shaft portion to a substantially vehicle front side by utilizing the rotational displacement. I am trying.

According to a second aspect of the present invention, there is provided the vehicle pedal support structure according to the first aspect, wherein the forcibly displacing means is provided at the rear portion of the support, and when the relative rotation becomes convex upward. An interference portion that interferes with the back surface of the vehicle pedal and presses the back surface to the front side of the vehicle.
It is characterized by that.

According to a third aspect of the present invention, there is provided the vehicle pedal support structure according to the first aspect, wherein the forced displacement means is a pedaling force applied to the vehicle pedal and the tread surface of the vehicle pedal. Is a link mechanism for connecting a pedaling force transmission means for transmitting to the master cylinder side, and for applying a rotational displacement force to the front side of the vehicle to the vehicle pedal at the time of relative rotation that is convex upward. There is.

According to a fourth aspect of the present invention, there is provided the pedal support structure for a vehicle according to the third aspect, wherein the support rear portion is formed in a substantially U shape in which a front side is opened in plan view. The vehicle pedal is arranged between both side portions of the support rear portion, and when the relative displacement amount of the first vehicle body side component member with respect to the second vehicle body side component member is a predetermined value or more, the support rear portion. The intermediate portion of (1) interferes with the rear surface of the vehicle pedal and presses the rear surface substantially to the front side of the vehicle.

According to the first aspect of the present invention, the pedal support is divided substantially in the front-rear direction of the vehicle, and the divided rear end side of the support front part and the divided front end side of the support rear part are of a suspension type. They are connected to each other so as to be rotatable relative to each other by using a rotary shaft portion which is a swing center of the vehicle pedal.

According to the present invention having the above-mentioned structure, during the normal operation of the vehicle pedal, an operating force substantially downward of the vehicle acts on the rotating shaft portion which is the swing center of the vehicle pedal. For this reason, relative rotation that is convex downward tends to occur between the support front portion and the support rear portion. However, in the case of the present invention, since the engaging means is provided on at least one side of the support front portion and the support rear portion, the above-described downward relative rotation is prevented from occurring therebetween. Therefore, during the normal operation of the vehicle pedal, a sufficient supporting force is secured on the pedal support side.

On the other hand, when a predetermined high load is applied to the front portion of the vehicle, the first body-side component member is displaced relative to the second vehicle-body-side component member. Compressive force acts on the. In this case, in the present invention, an upward convex relative rotation is attempted to occur between the support front portion and the support rear portion, but at this time, the engagement means prevents the relative rotation between the two from occurring. On the contrary, the relative rotation is allowed to occur between them. Then, by utilizing the relative rotation, the vehicle pedal is forcibly rotationally displaced around the rotation shaft portion substantially forward of the vehicle by the forced displacement means provided on at least one side of the support rear portion and the vehicle pedal. . As a result, when a predetermined high load is applied to the front portion of the vehicle, the tread surface of the vehicle pedal can be reliably moved substantially forward of the vehicle even when the relative displacement amount of the first vehicle body side component member with respect to the second vehicle body side component member is small. It can be displaced to the side.

According to the present invention as set forth in claim 2, the above-mentioned forced displacement means is constituted by the interference portion provided at the rear portion of the support, and the interference portion is used for the vehicle at the time of the above-mentioned relative rotation which makes an upward convex. It interferes with the rear surface of the pedal and forcibly presses the rear surface to the front side of the vehicle. Therefore, the rotational displacement of the vehicle pedal to the front side of the vehicle can be positively generated.

According to the third aspect of the present invention, the above-mentioned forced displacement means links the pedal for the vehicle and the pedal force transmitting means for transmitting the pedaling force applied to the tread surface of the vehicle pedal to the master cylinder side. The link mechanism forcibly applies a rotational displacement force substantially forward of the vehicle to the front side of the vehicle by the link mechanism during the above-described relative rotation that is convex upward. Therefore, the rotational displacement of the vehicle pedal to the front side of the vehicle can be positively generated.

According to the fourth aspect of the present invention, the above-mentioned support rear portion is formed in a substantially U-shape in plan view with the front side being open, and the vehicle pedal is arranged between both side portions of the support rear portion. It Here, when the relative displacement amount of the first vehicle body-side component member with respect to the second vehicle body-side component member is less than a predetermined value, substantially the vehicle front of the vehicle pedal by the link mechanism according to the invention described in claim 3 described above. A forced rotational displacement to the side will occur. Then, when the relative displacement amount is equal to or larger than the predetermined value, the next forced displacement is executed. That is, the intermediate portion of the rear portion of the support interferes with the back surface of the vehicle pedal, so that the back surface of the vehicle pedal is pressed substantially forward of the vehicle.

In other words, in the case of the present invention, in accordance with the relative displacement amount of the first vehicle body side component member with respect to the second vehicle body side component member, the vehicle pedal is provided with a two-stage forced rotational displacement force. can do.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION [First Embodiment] A first embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 shows a side view of the support structure of the brake pedal 10 according to this embodiment. As shown in this figure, a dash panel 16 as a "first vehicle body side constituent member" is arranged substantially vertically at a position that partitions 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 lower surface side of the cowl inner panel 18A which is arranged with the vehicle width direction as the longitudinal direction and constitutes a part of the cowl 18. 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 20 functioning as a pedal effort increasing means for increasing the pedal effort of the occupant applied to the brake pedal 10, and the pressure increased by the brake booster 20 are provided. A master cylinder 22 for hydraulic pressure conversion for converting to hydraulic pressure, and a reservoir tank (not shown) that stores and replenishes the brake fluid by following the volume change of the hydraulic system.
And are arranged integrally.

On the other hand, on the rear side of the dash panel 16,
A suspension brake pedal 10 as a "vehicle pedal" supported by a pedal support 26, which will be described in detail later, is provided. The brake pedal 10 includes a pedal arm 56 formed by appropriately bending a narrow plate material, and a pedal pad (a tread surface) 58 provided at a lower end portion of the pedal arm 56 and provided with a tread force of an occupant. Has been done. A return spring (not shown) is locked to the pedal arm 56 of the brake pedal 10, and the return spring constantly urges the brake pedal 10 in the direction of returning to the initial position.

At the upper end of the pedal arm 56 of the brake pedal 10, there is provided a rotary shaft portion 60 serving as a swing center. Briefly referring to an example of the configuration of the rotary shaft portion 60, a cylindrical pedal boss 74 is inserted into a through hole 72 formed in the upper end portion of the pedal arm 56 and fixed by welding or the like, and both ends of the pedal boss 74 are fixed. Cylindrical bushes 76 with collars are fitted into the respective parts, and the cylindrical collars 78 are further inserted into the axial center portions of both bushes 76, and then the mounting bolts 62 are inserted from the outside of the pedal support 26 and the washer 63. The rotating shaft portion 60 is configured by screwing the nut 64 through the.

Returning to FIG. 1, the brake pedal 10 described above.
In the middle of the pedal arm 56 of the
A tip end portion of a push rod (operating rod) 66, which is arranged so as to project from 0 and penetrate the dash panel 16, serves as a “pedal force transmitting means”. Specifically, a clevis 68 formed in a substantially U shape in a plan view is attached to the tip end portion of the push rod 66. There is a pedal arm 5 inside the clevis 68.
6 is arranged in an inserted state, the clevis pin 70 penetrates both side portions of the clevis 68 and the pedal arm 56, and a β pin, a retaining ring, etc. are fitted to the penetrating end portion of the clevis pin 70 to prevent the clevis 68 from being pushed out. 66 and the pedal arm 56 are rotatably connected to each other.

Next, the structure of the pedal support 26 that swingably supports the above-described brake pedal 10 will be described in detail.

The pedal support 26 is a "support front portion".
Is divided into a front support 28 and a rear support 30 as a “support rear part”. The front support 28 includes a front base portion 32 that constitutes a seating surface for attaching to the dash panel 16, and the front base portion 3
And a pair of front side portions 34 extending in parallel to the rear side of the vehicle from both side portions of the two, and are formed in a U shape in a plan view.

Cylindrical collars 38 for inserting stud bolts (not shown) protruding from the brake booster 20 are fixed to the four corners of the front surface of the front base portion 32. The front base portion 32 has these collars 3
In a state in which 8 is brought into contact with the dash panel 16, a nut (not shown) is screwed into a stud bolt that is inserted inside to fix the dash panel 16 to the dash panel 16.
As a result, the front support 28 becomes the dash panel 1
It is connected to 6. It is also possible to weld a weld nut to the front surface of the dash panel 16 in advance and fix the mounting bolt by screwing it in from the front base portion 32 side. Further, a dash insulator (not shown) used as a sound insulating material is interposed between the dash panel 16 and the front base portion 32.

On the other hand, the rear support 30 arranged on the rear side of the front support 28 has a pair of rear side portions 42 each formed in a substantially "V" shape and pivotally supporting the rotary shaft portion 60 of the brake pedal 10. , These rear side parts 4
The rear base portion 44 connecting the rear end portions of the two is included, and is formed in a generally U-shape in plan view as a whole.

The rear base portion 44 is fixed by a fixing bolt 52 and a weld nut 54 to the front end portion of a support member 50 arranged so as to project from the instrument panel reinforcement 48 to the front side of the vehicle. The instrument panel reinforcement 48 is a high-strength member arranged with the vehicle width direction as the longitudinal direction, and the support member 50 is also set to have a predetermined high strength. "Member".

Here, as shown in FIG. 5, the front support 28 and the rear support 30 described above are fastened together using a rotating shaft portion 60 so as to be relatively rotatable. Specifically, the front end side of the rear side portion 42 is superposed on the outer side of the rear end side of the front side portion 34, and the mounting bolt 62 described above is inserted and the nut 64 is screwed in this state, whereby the rear support 30 Are connected to the front support 28 so as to be rotatable relative to each other.

Further, as shown in FIGS. 3 and 4, the front end portion 42A of the rear side portion 42 constituting the side portion of the rear support 30 described above is bent substantially obliquely downwardly of the vehicle. A substantially U-shaped engagement groove 80 is formed on the lower edge side of the front end portion 42A. Correspondingly, a bolt insertion hole 82 is formed in the rear end portion 34A of the front side portion 34, which constitutes the side portion of the front support 28, at a position overlapping with the closed end of the engagement groove 80. Further, a weld nut 84 is coaxially welded around the bolt insertion hole 82. Then, the bolt 86 is inserted into the engagement groove 80 and the bolt insertion hole 82, and the weld nut 8 is inserted.
The rear support 30 can be relatively rotated around the rotary shaft portion 60 by being screwed into the shaft 4. The engaging groove 80, the weld nut 84, and the bolt 86 in the above structure correspond to the "engaging means" in the present invention.

Further, as shown in FIGS. 1 and 3,
On the bottom wall portion of the rear support 30, there is formed a protrusion 88 as an "interference portion" that protrudes substantially toward the vehicle lower side. The protruding portion 88 is arranged so as to face the back surface 56A of the pedal arm 56 of the brake pedal 10, and faces upward between the front support 28 and the rear support 30 when a predetermined high load is applied to the front portion of the vehicle. When the convex relative rotation is generated, the rear surface 56A of the pedal arm 56 of the brake pedal 10 interferes (contacts) with the rear surface 56A and presses the front side of the vehicle.

Next, the operation and effect of this embodiment will be described.

The state shown in FIG. 1 is a normal state. When the brake is not operated, the brake pedal 10
Is held in the initial position by the biasing force of the return spring. From this state, the occupant brake pedal 10
When a pedaling force is applied to the pedal pad 58, the brake pedal 10 is swung around the rotary shaft portion 60 substantially to the front side of the vehicle (direction of arrow A in FIG. 1), and the push rod 66 is substantially moved to the front side of the vehicle (see FIG. 1). It is pressed in the direction of arrow B). As a result, the occupant's pedaling force applied to the pedal pad 58 is transmitted to the brake booster 20 via the push rod 66, is increased by the brake booster 20, and is then converted into hydraulic pressure by the master cylinder 22.

Here, when the pedal pad 58 of the brake pedal 10 is stepped on (that is, when the brake pedal 10 is normally operated), the rotary shaft portion 60, which is the swing center of the brake pedal 10, is moved substantially downwardly of the vehicle. Operating force (external force in the direction of arrow P in FIG. 1) is applied. As a result, relative rotation is likely to occur between the front support 28 and the rear support 30 so as to project downward (that is, the rear support 30 moves around the fixing bolt 52 and the weld nut 54, which are the fixing points). Attempt to rotate in the direction of arrow M1 in FIG. 1). However, in the case of the present embodiment, the engagement groove 80 opened downward is formed in the rear side portion 42 of the rear support 30, and the engagement groove 80 is an engagement point between the front support 28 and the rear support 30. Since it is engaged with the bolt 86, the relative rotation that is convex downward is prevented from occurring between them. Therefore, during normal operation of the brake pedal 10, a sufficient supporting force is secured on the pedal support 26 side.

On the other hand, when a predetermined high load acts on the front part of the vehicle, the load at that time is input to the dash panel 16 via the master cylinder 22 and the brake booster 20. Therefore, as shown in FIG. 2, the dash panel 1
A pressing force (external force in the direction of arrow Q in FIG. 2) to the rear side of the vehicle (and substantially to the upper side of the vehicle) acts on 6, and the dash panel 16 may be relatively displaced in the same direction.

In this case, a load to the rear side of the vehicle is input to the pedal support 26 due to the rearward displacement of the dash panel 16, but the rear end side of the pedal support 26 (that is,
Since the support member 50 to which the rear support 30 is connected) and the instrument panel reinforce 48 that is a mounting partner thereof are both high-strength members, the support member 50 and the instrument panel reinforce 48 are substantially rearward of the vehicle. Almost no displacement. For this reason, the dash panel 16 is relatively displaced with respect to the instrument panel reinforcement 48 toward the vehicle rear side, whereby a compressive force in the vehicle longitudinal direction acts on the pedal support 26.

In this case, in the present embodiment, the pedal support 26 is divided into the front support 28 and the rear support 30, both of which are connected to each other by the rotating shaft portion 60 so that they can rotate relative to each other. Causes an upward convex relative rotation (that is, the rear support 30 tries to rotate in the direction of arrow M2 in FIG. 1 about the fixing bolt 52 and the weld nut 54, which are fixing points). Therefore, the engaging groove 80 is disengaged from the bolt 86,
Relative rotation that is convex upward occurs between the two. As a result, the protrusion 88 provided on the rear support 30 interferes (abuts) on the back surface 56A of the pedal arm 56 of the brake pedal 10, and the brake pedal 10 is forcibly moved around the rotary shaft 60 to the front side of the vehicle. Press on. As a result, when a predetermined high load is applied to the front portion of the vehicle, the pedal pad 58 of the brake pedal 10 is small even when the relative displacement amount of the dash panel 16 with respect to the instrument panel reinforcement 48 is small.
Can be reliably displaced substantially to the front side of the vehicle. Therefore, the knee of the leg of the occupant can be prevented from bending due to the inertial movement of the occupant when a predetermined high load is applied to the front portion of the vehicle, and the lap of the leg of the occupant can be kept away from the steering column.

In summary of the contents described above, the support structure for the brake pedal 10 according to the present embodiment can secure a sufficient support force during the normal operation of the brake pedal 10, and further, can support the front portion of the vehicle. This means that the pedal pad 58 of the brake pedal 10 can be reliably displaced substantially forward of the vehicle even when the relative displacement amount of the dash panel 16 with respect to the instrument panel reinforcement 48 is small when a predetermined high load is applied.

In addition, in the support structure of the brake pedal 10 according to the present embodiment, the rear support 30 is provided with the protrusion 88 on the bottom wall thereof, and the rear face 56A of the pedal arm 56 of the brake pedal 10 is substantially formed by the protrusion 88. Since the configuration is adopted in which the vehicle is positively pressed forward, the brake pedal 10 can be effectively rotationally displaced substantially forward of the vehicle with a simple configuration.

[Second Embodiment] Next, FIG. 10 and FIG.
The second embodiment of the present invention will be described with reference to FIG. Regarding the same components as those of the first embodiment described above,
The same numbers are assigned and the description thereof is omitted.

In the support structure for the brake pedal 100 according to this embodiment, as shown in FIGS. 10 and 11, the brake pedal 100 and the push rod 66 are connected via a link mechanism. More specifically, at the lower end of the front support 104, which corresponds to the “front part of the support” of the pedal support 102, the lower end of the swing arm 106 whose longitudinal direction is substantially the vehicle vertical direction swings around the support shaft 108. It is movably supported. In addition, the swing arm 106
The upper end of the clevis is connected to the clevis 68 by a clevis pin 70 so as to be relatively rotatable.

On the other hand, the brake pedal 100 is connected to a swing plate 110 which is formed in a substantially U shape in a plan view and has a shape in which the ∠ symbol is reversed in the front-rear direction in a side view. The brake pedal 10 is provided between both sides of the swing plate 110.
It is arranged with 0 inserted. Swing plate 1
The upper end portion of 10 is connected by a rotating shaft portion 60 to a front side portion 112 of the front support 104 and a rear side portion 126 of a rear support 124 corresponding to a “support rear portion” described later so as to be relatively rotatable. Further, in a side view, the middle portion and the rear end portion of the swing plate are
Recesses in the form of oblong holes, each of which is inclined by a predetermined angle (may be oblong holes) 1
14, 116 are formed. Each recess 114, 116
Includes a roller 11 arranged on the brake pedal 100 side.
8 and 120 are rotatably inserted. Further, the front end portion of the swing plate 110 and the vicinity of the upper end portion of the swing arm 106 described above are connected by a pair of links 122 so as to be relatively rotatable.

Further, here, the rear support 124 is formed in a substantially U shape in a plan view, and a pair of rear side portions 126 extending substantially in the vehicle front-rear direction and arranged in parallel with each other.
And a rear base portion 128 connecting the rear end portions of these rear side portions 126. The pair of rear side portions 126 corresponds to "the both sides of the support rear portion" and the rear base portion 128 corresponds to the "intermediate portion of the support rear portion" in the present invention.

The rear base portion 128 of the rear support 124 is fixed to the front end portion of the support member 50 by the fixing bolt 52.
And the weld nut 54. Further, in the assembled state of the rear support 124, the rear base portion 128 is arranged so as to slightly project to the vehicle lower side than the front end portion of the support member 50. Corresponding to this, a stepped step portion 134 is integrally formed on the back surface side of the intermediate portion of the swing plate 110. This step 134
Are arranged to face the rear base portion 128 of the rear support 124 in a substantially vertical direction of the vehicle.

In the above structure, the brake pedal 100 and the rocking plate 110 correspond to the "vehicle pedal" of the present invention, and the rocking arm 10 is described.
6, the link 122 corresponds to the same "link mechanism".

Next, the operation and effect of this embodiment will be described.

In order to operate the brake pedal 100 normally, the pedal pad 58 of the brake pedal 100 is shown in FIG.
When the pedaling force is applied in the direction of arrow A, the pedaling force is transmitted to the swing plate 110 via the pair of rollers 118 and 120. Therefore, the swing plate 110 is swung around the rotary shaft portion 60 substantially to the front side of the vehicle (direction of arrow C in FIG. 10). The swing force of the swing plate 110 is the link 122.
Is transmitted to the swing arm 106 via the
6 is swung about the support shaft 108 substantially to the front side of the vehicle (direction of arrow D in FIG. 10). As a result, the push rod 66 is pushed substantially forward of the vehicle (direction of arrow B in FIG. 10), and a predetermined braking force is obtained.

Here, also in the present embodiment, during the normal operation of the brake pedal 100, an operating force (an external force in the direction of arrow P in FIG. 10) substantially acts on the rotary shaft portion 60 toward the lower side of the vehicle. For this reason, relative rotation is likely to occur between the front support 104 and the rear support 124 so as to project downward (that is, the rear support 124 is centered around the fixing bolt 52 and the weld nut 54, which are the fixing points).
Tries to rotate in the direction of arrow M1 in FIG. 10).

However, also in this embodiment, the engaging groove 80 opened downward is formed in the rear side portion 126 of the rear support 124, and the engaging groove 80 is engaged with the front support 104 and the rear support 124. Since it is engaged with the bolt 86 that serves as a confluence point, the relative rotation that is convex downward is prevented from occurring between the two. Therefore, during normal operation of the brake pedal 100, sufficient support force is secured on the pedal support 102 side.

On the other hand, when a predetermined high load acts on the front portion of the vehicle, the load at that time is input to the dash panel 16 via the master cylinder 22 and the brake booster 20. Therefore, as shown in FIG. 11, a pressing force (external force in the direction of arrow Q in FIG. 11) to the rear side of the vehicle (and substantially the upper side of the vehicle) acts on the dash panel 16, which causes the dash panel 16 to move. May be relatively displaced in the same direction.

In this case, a load to the rear side of the vehicle is input to the pedal support 26 due to the rearward displacement of the dash panel 16, but the rear end side of the pedal support 26 (that is,
Since the support member 50 to which the rear support 30 is connected) and the instrument panel reinforce 48 that is a mounting partner thereof are both high-strength members, the support member 50 and the instrument panel reinforce 48 are substantially rearward of the vehicle. Almost no displacement. For this reason, the dash panel 16 is relatively displaced with respect to the instrument panel reinforcement 48 toward the vehicle rear side, whereby a compressive force in the vehicle longitudinal direction acts on the pedal support 26.

In this case, also in this embodiment, the pedal support 102 is divided into the front support 104 and the rear support 124, and the both are connected by the rotating shaft portion 60 so as to be relatively rotatable. Relative rotation that is convex upward tends to occur (that is, the rear support 124 tries to rotate in the direction of arrow M2 in FIG. 10 about the fixing bolt 52 and the weld nut 54 that are fixing points). For this reason, the engaging groove 80 is disengaged from the bolt 86, and relative rotation is generated between the both, which is convex upward. As a result, the swing arm 106 is pushed (pushed) up substantially to the upper side of the vehicle. The pushing (pushing) force at this time is transmitted to the lower end portion of the rocking plate 110 via the link 122, and the lower end portion is drawn substantially forward of the vehicle.
As a result, the swing plate 110 is rotationally displaced about the rotating shaft portion 60 to the front side of the vehicle, and the brake pedal 100 is forcibly rotationally displaced in the same direction. As a result, the pedal pad 58 of the brake pedal 100 can be reliably displaced substantially forward of the vehicle when a predetermined high load is applied to the front of the vehicle.

Further, in the case of the present embodiment, when the relative displacement amount of the dash panel 16 with respect to the instrument panel reinforcement 48 is large, the lower edge of the rear base portion 128 of the rear support 124 is the step portion 134 of the swing plate 110.
And the swing plate 110 is forcibly pressed again around the rotary shaft portion 60 to the front side of the vehicle (direction of arrow C in FIG. 10). Therefore, according to the relative displacement amount of the dash panel 16 with respect to the instrument panel reinforcement 48, the forced rotational displacement force can be applied to the brake pedal 100 in two steps.

As described above, even with the support structure for the brake pedal 100 according to the present embodiment, it is possible to secure a sufficient support force during the normal operation of the brake pedal 100, as in the first embodiment described above, and further, the vehicle. When a predetermined high load is applied to the front portion, the pedal pad 58 of the brake pedal 100 can be reliably displaced substantially to the front side of the vehicle.

Further, the brake pedal 1 according to the present embodiment
In the support structure of No. 00, the link mechanism connecting the push rod 66 and the brake pedal 100 is configured to forcibly rotationally displace the brake pedal 100 substantially to the front side of the vehicle. In the case of
Can be effectively rotationally displaced substantially forward of the vehicle.

Further, in the support structure of the brake pedal 100 according to the present embodiment, when the relative displacement amount of the dash panel 16 is equal to or greater than the predetermined value, the lower edge portion of the rear base portion 128 of the rear support 124 is set as the second stage. Since the brake pedal 100 is brought into direct contact with the stepped portion 134 of the swing plate 110 to forcibly press the brake pedal 100 toward the front side of the vehicle again, the number of parts is not increased (the structure is complicated). It is very excellent in that the brake pedal 100 can be rotationally displaced substantially forward of the vehicle reliably and effectively according to the relative displacement amount of the dash panel 16 with respect to the instrument panel reinforcement 48 (without inviting).

[Supplementary Explanation of Embodiments] In each of the above-described embodiments, the present invention is applied to the suspension type main brake pedal, but the present invention is not limited to this, and is applicable to suspension type clutch pedals and the like. It is also possible to apply the present invention.

Further, in the above-described first embodiment, the protrusion 88 is formed on the rear support 30, and the protrusion 88 interferes with the back surface 56A of the pedal arm 56 of the brake pedal 10, and the second embodiment is also adopted. In the configuration, the lower edge of the rear base portion 128 of the rear support 124 is made to interfere with the step portion 134 formed on the swing plate 110. However, various configurations can be used to make the rear portion of the support interfere with the back surface of the vehicle pedal. Configurations or combinations may be employed. Taking the first embodiment as an example, the back surface 56A of the pedal arm 56 of the brake pedal 10 may be provided with a portion corresponding to the step portion 134 of the second embodiment in order to cause the protrusion 88 to interfere more quickly. Further, taking the second embodiment as an example, the rear support 124 is attached to the step portion 134 of the swing plate 110.
In order to cause the lower edge of the rear base portion 128 to interfere more quickly, a portion corresponding to the protruding portion 88 of the first embodiment may be provided on the lower edge of the rear base portion 128.

Further, in each of the above-mentioned embodiments, the rear end side of the pedal supports 26, 102 is fixed to the support member 50 of the instrument panel reinforcement 48, but the present invention is not limited to this. A configuration in which the end side is fixed to the cowl 18 side may be adopted.

Further, in each of the above-described embodiments, the structure in which the bolt 86 is engaged with the engaging groove 80 is adopted as the engaging means, but the present invention is not limited to this, and various structures can be applied.
Hereinafter, another embodiment of the engaging means will be described by taking the configuration of the first embodiment as an example.

In the embodiment shown in FIGS. 6 and 7, the rear end side of the front support 28 and the front end side of the rear support 30 are joined by the rivet 140 as "engaging means". In this case, when a predetermined high load is applied to the front part of the vehicle, a load larger than the shear load of the rivet 140 acts on the rivet 140, so that the rivet 140 is sheared and the engaged state is released. According to this configuration, there is an advantage that the relative rotation start load between the front support 28 and the rear support 30 can be arbitrarily controlled by the shaft diameter of the rivet 140.

In the embodiment shown in FIGS. 8 and 9, without using the bolts 86 and the rivets 140, the lower surface of the upper edge flange portion 142 of the front support 28 in the assembled state of the front support 28 and the rear support 30. Is characterized in that the upper surface of the upper edge flange portion 144 of the rear support 30 is abutted (may be slightly separated). In this case, when a predetermined high load is applied to the front portion of the vehicle, a push-up load of a predetermined value or more acts on the upper edge flange portion 142 of the front support 28 from the upper edge flange portion 144 of the rear support 30, thereby causing the front support 28 to move.
The upper edge flange portion 142 is plastically deformed in the opening direction and the engaged state is released. In the case of this configuration, the upper edge flange portions 142 and 144 correspond to the "engaging means" in the present invention.

According to this structure, since the bolt 86 and the rivet 140 are not used, it is possible to reduce the number of parts and the number of assembling steps. Therefore, there is an advantage that the cost can be reduced. Further, there is an advantage that the relative rotation start load between the front support 28 and the rear support 30 can be arbitrarily controlled by the contact area between the upper edge flange portions 142 and 144, the plate thickness, and the like.

In addition, a relatively small slit is formed in one of the front support 28 and the rear support 30, and a hook-shaped claw that engages with the slit is formed in the other of the front support 28 and the rear support 30. You may take the structure which forms. In this case, the hook-shaped claws are plastically deformed and disengaged from the slits, or the claws are broken, whereby the engagement state between the both is released.

Further, in the above-described embodiment, the engagement groove 80 of the rear support 30 is engaged with the bolt 86 on the front support 28 side, so that the supporting force is secured during normal operation of the brake pedal 10 and the vehicle front portion is secured. 12 is adopted, the configuration is such that the rotational displacement of the pedal pad 58 substantially toward the front side of the vehicle at the time of a predetermined high load action is achieved.
As schematically shown in (A) and (B), an extension portion 152 extending substantially rearward of the vehicle is provided on the rear end side of the front support 150, and is formed on the lower edge side of the extension portion 152. The bolt 158 set on the rear support 156 side may be engaged with the engaged groove (or cutout) 154. In addition, in this figure, the protrusion 8 described in the first embodiment is used.
Illustration of 8 and the like is omitted. In this way, the setting relationship between the engaging portions (such as bolts and pins) and the engaged portions (such as grooves, notches, holes) that constitute the engaging means is reversed between the front support side and the rear support side. The same effect can be obtained in that case as well.

[0068]

As described above, in the pedal support structure for a vehicle according to the present invention as set forth in claim 1, the pedal support is divided substantially in the vehicle front-rear direction, and the rear end side of the support front part and the support rear part are divided. A front end side of the vehicle pedal is rotatably connected to each other using a rotary shaft portion of the vehicle pedal, and at least one side of the support front portion and the support rear portion is substantially below the vehicle that acts on the rotary shaft portion during normal operation of the vehicle pedal. It prevents the downward relative convex rotation between the front part of the support and the rear part of the support from occurring due to the operating force to the side, and between the front part of the support and the rear part of the support when a predetermined high load is applied to the front part of the vehicle. Is provided with engaging means for allowing upward relative rotation to occur, and further, at least one side of the support rear part and the vehicle pedal is provided with a support front part when a predetermined high load acts on the vehicle front part. Service A forced displacement means for forcibly pressing the vehicle pedal around the rotation shaft portion to the substantially front side of the vehicle by utilizing the rotational displacement when a relative rotation that is convex upward is generated between the vehicle pedal and the rear portion. Since it is provided, sufficient supporting force can be secured during normal operation of the vehicle pedal, and moreover, the tread surface of the vehicle pedal can be surely displaced to the front side of the vehicle when a predetermined high load is applied to the front portion of the vehicle. It has an excellent effect that

According to a second aspect of the present invention, there is provided the vehicle pedal support structure according to the first aspect, wherein the rear surface of the vehicle pedal interferes with the rear surface of the vehicle pedal at the time of relative rotation in which the upper surface is convex and the rear surface is substantially forward of the vehicle. Since the interference portion that presses to the side is provided in the rear portion of the support, and the forced displacement means is configured by the interference portion, it is possible to effectively rotationally displace the vehicle pedal to the front side of the vehicle with a simple configuration. Has excellent effect.

According to a third aspect of the present invention, there is provided a vehicle pedal support structure according to the first aspect of the invention, wherein the pedal force applied to the vehicle pedal and the tread surface of the vehicle pedal is transmitted to the master cylinder side. Since the above-mentioned forced displacement means is configured by the link mechanism that is coupled to the transmission means and applies the rotational displacement force to the vehicle front side substantially to the vehicle pedal at the time of relative rotation in which it is convex upward, The pedal has an excellent effect that the vehicle pedal can be effectively rotationally displaced to the front side of the vehicle.

A vehicle pedal support structure according to a fourth aspect of the present invention is the vehicle pedal support structure according to the third aspect of the invention, wherein the rear portion of the support is formed in a substantially U shape in which the front side is opened in a plan view. The vehicle pedal is arranged between both sides of the rear portion, and when the relative displacement amount of the first vehicle body side component member with respect to the second vehicle body side component member is a predetermined value or more, the middle portion of the support rear portion is Since it interferes with the back surface of the vehicle pedal and presses the back surface to the front side of the vehicle,
Utilizing the features of the link type vehicle pedal support structure, the vehicle pedal can be effectively rotated and displaced substantially forward of the vehicle with a simple configuration.

[Brief description of drawings]

FIG. 1 is a side view showing an overall configuration (during normal operation) of a brake pedal support structure according to a first embodiment.

FIG. 2 is a side view corresponding to FIG. 1, showing a state in which a pedal pad is rotationally displaced substantially forward of a vehicle when a predetermined high load is applied to a front portion of the vehicle.

FIG. 3 is an enlarged side view showing the vicinity of a connecting portion between a front support and a rear support.

4 is a cross-sectional view taken along line 4-4 of FIG.

FIG. 5 is a vertical cross-sectional view showing a configuration of a rotary shaft portion.

FIG. 6 is a side view corresponding to FIG. 3, showing a configuration of an engaging means using a rivet.

7 is a sectional view taken along line 7-7 of FIG.

FIG. 8 is a side view corresponding to FIG. 3, showing a configuration of an engagement means in which flange portions are brought into contact with each other.

9 is a sectional view taken along the line 9-9 of FIG.

FIG. 10 is a side view showing an overall configuration (during normal operation) of a brake pedal support structure according to a second embodiment.

FIG. 11 is a side view corresponding to FIG. 10, showing a state in which the pedal pad is rotationally displaced substantially toward the front side of the vehicle when a predetermined high load is applied to the front portion of the vehicle.

FIG. 12 is a schematic diagram schematically showing an embodiment in which the setting relationship between the engaging portion and the engaged portion is reversed on the front support side and the rear support side.

[Explanation of symbols]

10 Brake Pedal (Vehicle Pedal) 16 Dash Panel (First Body Side Member) 18 Cowl (Second Body Side Member) 22 Master Cylinder 26 Pedal Support 28 Front Support (Support Front) 30 Rear Support (Support) Rear part 48 Instrument panel reinforcement (second vehicle body side constituent member) 50 Support member (second vehicle body side constituent member) 56A Back surface 58 Pedal pad 60 Rotating shaft portion 80 Engaging groove (engaging means) 84 Weld nut (engaging) Means) 86 Bolt (engagement means) 88 Projection (interference part, forced displacement means) 100 Brake pedal (vehicle pedal) 102 Pedal support 104 Front support (support front part) 106 Swing arm (link mechanism, forced displacement means) ) 110 swing plate (vehicle pedal) 122 link (link Mechanism, forced displacement means) 124 Rear support (rear part of support) 126 Rear side part (both sides of rear part of support) 128 Rear base part (intermediate part of rear part of support) 140 Rivet (engaging means) 142 Upper edge flange part (engaging means) 144 Upper edge flange portion (engagement means) 150 Front support (support front portion) 154 Engagement groove (engagement means) 156 Rear support (support rear portion) 158 Bolt (engagement means)

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Tadashi Takeuchi             1 Toyota Town, Toyota City, Aichi Prefecture Toyota Auto             Car Co., Ltd. (72) Inventor Masatsugu Yamamoto             1 Toyota Town, Toyota City, Aichi Prefecture Toyota Auto             Car Co., Ltd. (72) Inventor Isao Yagi             4-50 Hosoya-cho, Toyota-shi, Aichi Toyota Tetsudo             Within Kou Co., Ltd. (72) Inventor Takashi Hayashibara             4-50 Hosoya-cho, Toyota-shi, Aichi Toyota Tetsudo             Within Kou Co., Ltd. F term (reference) 3D003 AA05 BB01 CA05 CA09 DA08

Claims (4)

[Claims] 1. A front end side is fixed to a first vehicle body side component member, and a rear end side is fixed to a second vehicle body side component member that is arranged substantially rearward of the vehicle body side from the first vehicle body side component member,
For a suspension type vehicle for a pedal support that receives a compressive force in a substantially vehicle front-rear direction due to a relative displacement of the first vehicle body side component member with respect to the second vehicle body side component member when a predetermined high load is applied to the vehicle front portion. A pedal support structure for a vehicle, in which a rotary shaft portion serving as a swing center of a pedal is pivotally supported, wherein the pedal support is divided in a substantially vehicle front-rear direction, and a rear end side of the divided support front portion. The front end side of the support rear part is relatively rotatably connected using the rotary shaft part of the vehicle pedal, and at least one side of the support front part and the support rear part is at the time of normal operation of the vehicle pedal. It prevents the downward relative convex rotation between the front part of the support and the rear part of the support due to the operating force acting on the rotating shaft part to the lower side of the vehicle, and when a predetermined high load is applied to the front part of the vehicle. Engaging means is provided between the support front portion and the support rear portion to allow upward relative rotation to occur, and the vehicle front portion is provided on at least one side of the support rear portion and the vehicle pedal. When a predetermined relative high load is applied to the front part of the support and the rear part of the support is convexly rotated upward, the rotational displacement is used to force the vehicle pedal around the rotating shaft part. A vehicle pedal support structure comprising: forced displacement means for rotationally displacing substantially to the front side of the vehicle. 2. The forcibly displacing means is an interference portion which is provided at the rear portion of the support and which interferes with the rear surface of the vehicle pedal and presses the rear surface substantially forward of the vehicle at the time of the relative rotation that is convex upward. The pedal support structure for a vehicle according to claim 1, wherein: 3. The forcibly displacing means connects the vehicle pedal and a pedaling force transmitting means for transmitting the pedaling force applied to the tread surface of the vehicle pedal to the master cylinder side, and the relative rotation is convex upward. The vehicle pedal support structure according to claim 1, wherein the vehicle pedal support structure is a link mechanism that applies a rotational displacement force substantially forward of the vehicle to the vehicle pedal. 4. The support rear portion is formed in a substantially U shape in which a front side is opened in a plan view, and the vehicle pedal is disposed between both side portions of the support rear portion, and the second vehicle body is provided. When the relative displacement amount of the first vehicle body-side constituent member with respect to the side constituent member is equal to or greater than a predetermined value, the intermediate portion of the support rear portion interferes with the rear surface of the vehicle pedal and presses the rear surface substantially to the vehicle front side. The pedal support structure for a vehicle according to claim 3, wherein