JP2002087227A - Brake pedal device of automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a brake pedal device of an automobile for preventing a collision load from acting on a pedal arm via a push rod of a master bag at head-on collision time of a vehicle and improving installing workability. SOLUTION: At vehicle collision time, a pedal bracket 2 is contractedly deformed by a collision absorbing means, engagement of a pivot bracket 3 with a slide plate 9 is released to allow a rotational movement of the pivot bracket 3, the pivot bracket 3 is rotated with a shaft 4 as a fulcrum, the pedal arm 8 is drawn near to the vehicle front side, the unillustrated master bag retreats or a dash lower panel 40 is deformed to the cabin side, and even if the push rod 24 retreats, a stepping position of the pedal arm 8 is dislocated backward to avoid the occurrence of a sense of incompatibility, the engagement is secured by a connecting part 20, and the installing workability is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a brake pedal device for a motor vehicle.

[0002]

2. Description of the Related Art As shown in Japanese Utility Model Laid-Open Publication No. Hei 6-1113, for example, a brake pedal device for a motor vehicle includes a dash lower panel and a dash lower panel which pivotally support the upper end of a pedal arm. It is fastened and fixed to the lower part of the dash upper panel that is joined to the lower panel and protrudes toward the passenger compartment, and by pushing down on the pedal arm, the push rod connected to the upper end of the pedal arm is pushed forward to move forward. , The master back is activated.

[0003]

According to the conventional structure,
When the master back or the dash lower panel to which the master back is fixed is deformed and retreats toward the cabin at the time of a frontal collision of the vehicle, the turning force in the direction opposite to the stepping direction is applied to the pedal arm via the push rod of the master back. This may cause the depressed position of the brake pedal to shift rearward, causing a feeling of strangeness.

Accordingly, the present invention prevents a collision load from acting on a pedal arm via a push rod of a master back at the time of a frontal collision of a vehicle, thereby avoiding a sense of incongruity, and a slide plate and a pivot bracket. It is intended to provide a brake pedal device for an automobile which can secure the engagement during the operation of assembling parts to a vehicle or during the transportation of parts as a pedal device before assembling, and can improve the assembling workability.

[0005]

According to the first aspect of the present invention, a pedal bracket fixed to a dash panel;
A pivot bracket rotatably supported on a shaft provided on the pedal bracket, a pedal arm rotatably supported on a pedal shaft provided on the pivot bracket at a position forward of the shaft with respect to the vehicle, and the dash It is fixed to the lower surface of the vehicle body member on the upper and rear sides of the panel, and is provided at the rear of the pedal bracket, and normally includes a slide plate that engages with a pivot bracket. When an input in a retreating direction exceeding the reverse direction is applied, at least a collision absorbing unit that allows relative movement of the shaft and the lower surface in the vehicle front-rear direction is provided between the fixed portion of the slide plate and the lower surface and the shaft. The pivot bracket is provided when the shaft and the fixed portion are relatively reduced and moved. A structure in which the pivot bracket is rotated downward and rearward around the shaft by being disengaged from the slide plate, wherein at least between the pedal bracket and the slide plate, the pedal bracket, the slide plate, And a connecting portion capable of releasing the connection when an input in a retreating direction exceeding a predetermined load acts on the pedal bracket.

According to a second aspect of the present invention, the connecting portion according to the first aspect is provided near an engaging portion between the slide plate and the pivot bracket.

According to a third aspect of the present invention, the connecting portion according to the first or second aspect is provided forward of the vehicle with respect to the engaging portion between the slide plate and the pivot bracket.

[0008] In the invention of claim 4, claims 1 to 3 are provided.
Is formed in a substantially U-shaped cross-section having a pair of side walls that are opposed to and spaced apart from each other and an upper wall that couples them upward, and the connecting portion is formed on the upper wall. In addition to the above, an opening is provided in the upper wall portion, from which an engaging portion of the pivot bracket that engages with the slide plate protrudes.

According to a fifth aspect of the present invention, the upper wall portion and the slide plate of the fourth aspect are fastened and fixed to the lower surface portion of the vehicle body member by the fastening member for fastening. The fastener fixing member insertion hole provided in the upper wall portion is formed in an elongated shape so that the pedal bracket and the slide plate can be relatively moved.

According to a sixth aspect of the present invention, the connecting portion according to the fifth aspect is set on an extension of the fastening fixing member insertion hole formed in a long hole shape in the vehicle longitudinal direction. I have.

According to a seventh aspect of the present invention, the slide plate is overlapped on the upper surface side of the upper wall portion of the pedal bracket according to the fourth to sixth aspects.

According to an eighth aspect of the present invention, the slide plate according to the seventh aspect is characterized in that the slide plate is formed in a substantially U-shaped cross section having flanges on both sides.

According to a ninth aspect of the present invention, there is provided a fastening member plate on which one member for fastening and fixing is fixedly provided on the lower surface side of the slide plate according to the seventh or eighth aspect. A second connecting the member plate to at least one of the pedal bracket and the slide plate;
A connecting portion is provided, and the slide plate can be fastened and fixed to the lower surface portion of the vehicle body member by the fastening member plate and the other member for fastening and fixing from above the vehicle.

In a tenth aspect of the present invention, the second connecting portion according to the ninth aspect is characterized in that the second connecting portion is set in front of the vehicle with respect to a fixing portion for fastening and fixing the slide plate to the lower surface portion.

According to the eleventh aspect of the present invention, the second connecting portion according to the ninth or tenth aspect is configured such that the second connecting portion is connected to the slide plate and the fastening member through the elongated hole. It is characterized in that it is connected to a plate.

According to the twelfth aspect of the invention, the ninth to nineteenth aspects of the invention
An embossed portion or a tongue piece protruding toward the slide plate is formed on the fastening member plate according to the eleventh aspect, and a second connecting portion is set in the embossed portion or the tongue piece.

In the invention of claim 13, claim 12
Is characterized in that the tongue piece is formed so as to protrude from the edge of the plate for the fastening member.

According to the invention of claim 14, claim 12 is
Or the embossed part or tongue piece according to claim 13,
It is characterized in that the pedal bracket is set in an elongated fastening member insertion hole in the shape of an elongated hole on the upper wall portion of the pedal bracket, and is in contact with the lower surface of the slide plate via the fastening member insertion hole.

According to a fifteenth aspect of the present invention, the second connecting portion connects the pedal bracket to the slide plate and the plate for the fastening member, and moves the pedal bracket in a retreating direction exceeding a predetermined load. When the input is applied, at least the fastening member plate and the slide plate are provided so as to be relatively movable with respect to the pedal bracket to release the connection.

According to the invention of claim 16, claims 4 to
The slide plate described in No. 6 is overlapped on the lower surface of the upper wall of the pedal bracket.

According to the seventeenth aspect of the present invention,
Wherein a fastening member is fixed to the lower surface of the slide plate.

[0022]

According to the first aspect of the present invention, since the rotation of the pivot bracket is normally restricted by the slide plate, the pedal arm is rotated with the pedal shaft as a fulcrum, and the pusher connected to the pedal arm is rotated. A normal master back operation can be performed via the rod.

On the other hand, when the vehicle collides from the front, the collision absorbing means reduces the distance between the fixed portion between the slide plate and the lower surface of the vehicle body member and the shaft, thereby reducing the size of the vehicle.
The engagement between the pivot bracket and the slide plate is disengaged, the pivot bracket is allowed to rotate, the pivot bracket is rotated downward and rearward with the shaft as a fulcrum, and the stepped position of the pedal arm is moved toward the front of the vehicle. Even if the master back moves backward or the dash lower panel is deformed to the cabin side and the master back push rod moves backward, the pedal arm depressed position shifts backward, causing discomfort. Can be avoided.

Further, the pedal bracket and the slide plate are connected between at least the pedal bracket and the slide plate, and the connection can be released when an input in a backward direction exceeding a predetermined load acts on the pedal bracket. The slide plate is restricted in relative movement with respect to the pedal bracket until an input exceeding a predetermined load is applied, so the link between the slide plate and the pivot bracket during assembly work or component transport is provided. Can be secured.

According to the second aspect, in addition to the effect of the first aspect, since the connecting portion is provided near the engaging portion between the slide plate and the pivot bracket, the connecting portion of the slide plate near the engaging portion is provided. Since the movement can be restricted, the securing of the engagement is improved.

According to the third aspect, in addition to the effect of the first or second aspect, the connecting portion is provided on the front side of the vehicle with respect to the engaging portion between the slide plate and the pivot bracket. Since there is a relatively large margin that does not affect the movement of the brake pedal, there is no need to increase the size of the pedal bracket, which can contribute to downsizing of the brake pedal device.

According to the fourth aspect, in addition to the effects of the first to third aspects, in addition to the effects of the first to third aspects, the pedal bracket is formed of a pair of side walls which are spaced apart from each other and an upper wall which connects them above. It is formed in a substantially U-shaped cross section, and the upper wall portion is provided with the connecting portion, and the upper wall portion is provided with an opening from which a meshing portion of a pivot bracket engaging with the slide plate projects. A pivot bracket is provided on the pedal bracket so that it can rotate.The height near the shaft can be reduced, and the overall size of the brake pedal device can be reduced, increasing the freedom of layout of the brake pedal device and applying it to various types of vehicles such as small cars. can do.

According to the fifth aspect, in addition to the effect of the fourth aspect, in addition to being fixedly fixed to the lower surface portion of the vehicle body member by the fastening member having the upper wall portion and the slide plate inserted therein, the collision absorbing means is further provided. Since the fastening member insertion hole provided in the upper wall portion is formed in a long hole shape so that the pedal bracket and the slide plate can be relatively moved, the structure is simple and the cost can be advantageously obtained. .

Moreover, by managing the torque at the time of fastening and fixing, it is possible to easily perform the collision absorption tuning.

According to the sixth aspect, in addition to the effect of the fifth aspect, the connecting portion is set on an extension of the fastening fixing member insertion hole formed in a long hole shape in the vehicle longitudinal direction. In addition, when the slide plate and the pedal bracket are moved relative to each other, the slide plate can be stably moved without biasing the moving direction.

According to the seventh aspect, in addition to the effects of the fourth to sixth aspects, the slide plate is overlapped on the upper surface side of the upper wall portion of the pedal bracket. Since there is no influence from the shaft, the pivot bracket, and the like provided in the bracket, the degree of freedom in layout can be increased.

According to the eighth aspect, in addition to the effect of the seventh aspect, since the slide plate is formed in a substantially U-shaped cross section having flanges on both sides thereof, the slide plate has a height depending on the height of the flange. It is easy to improve the rigidity with respect to the input load by freely setting the section modulus of itself, and since the rigidity can be secured by the flange in this way, the size of the slide plate itself can be reduced, and thus the brake pedal device Reduce the overall size,
It can be applied to various types of vehicles such as small cars.

If the flange is formed so as to cover both side portions of the upper wall portion of the pedal bracket in a downward direction, it functions as a guide when the slide plate is moved, so that the slide plate can be moved stably.

According to the ninth aspect, in addition to the effect of the seventh or eighth aspect, in addition to the effect of the seventh or eighth aspect, the fastening member plate having one fastening and fixing member fixed to the lower surface side of the slide plate is used as a pedal bracket or a slide. A second connecting portion for connecting to at least one of the plates, wherein the slide plate can be fastened and fixed to the lower surface portion of the vehicle body member by the fastening member plate and the other member for fastening and fixing from above the vehicle; It is possible to suppress rattling of the fastening member plate before assembling the plate.

Further, since the other member for fastening and fixing can be fastened and fixed from above the vehicle, after the pedal bracket is fixed to the dash panel, the vehicle body member for fixing the slide plate to the lower surface thereof is simultaneously mounted from the rear of the vehicle. In the case of mounting, it is also possible to abolish the fastening operation performed by sneaking under the vehicle body member or the brake pedal device, and it is possible to improve the assembling workability.

According to the tenth aspect, in addition to the effect of the ninth aspect, the second connecting portion is set forward of the vehicle with respect to the fixing portion for fastening and fixing the slide plate to the lower surface portion. The entire brake pedal device can be reduced in size without the second connecting portion protruding rearward.

According to the eleventh aspect, in addition to the effect of the ninth or tenth aspect, in addition to the effect of the ninth or tenth aspect, the second connecting portion is connected to the slide plate with the fastening member through the elongated hole for fastening and fixing member. Because the connection between the slide plate and the fastening member plate, the pedal bracket is interposed between the slide plate and the fastening member plate, and the slide plate and the fastening member plate honor the pedal bracket. The play between the slide plate and the pedal bracket can be suppressed.

Further, since there is no need to release the connection between the pedal bracket and the slide plate, the initial dynamic load at which the relative movement of the slide plate starts when the pedal bracket is subjected to an input in a backward direction exceeding a predetermined load is reduced. Can be.

Further, the elongated fixing member insertion hole serves as a guide, so that the slide plate can be stably moved relative to the pedal bracket.

According to the twelfth aspect, in addition to the effects of the ninth to eleventh aspects, an embossed portion or a tongue piece protruding toward the slide plate is formed on the fastening member plate, and the embossed portion or the tongue piece is formed. Since the second connecting portion is set on the side of the fastening member plate having a relatively simple shape, the processing is simple and the cost can be advantageously obtained.

According to the thirteenth aspect, in addition to the effect of the twelfth aspect, since the tongue piece is formed so as to protrude from the edge of the fastening member plate, the tongue piece can be easily formed. In addition, the size of the fastening member plate itself can be minimized, and the weight can be advantageously obtained.

According to the fourteenth aspect, in addition to the effect of the twelfth or thirteenth aspect, the embossed portion or the tongue piece is provided in the elongated fastening member insertion hole formed in the pedal bracket upper wall portion. Since the slide plate is set and abuts on the lower surface of the slide plate via the fastening member insertion hole, the elongated fastening member insertion hole serves as a guide so that the slide plate can be stably positioned relative to the pedal bracket. Can be moved.

According to the fifteenth aspect, in addition to the effect of the ninth aspect, the second connecting portion connects the pedal bracket to the slide plate and the plate for the fastening member,
When an input in a retreat direction exceeding a predetermined load acts on the pedal bracket, at least the fastening member plate and the slide plate are released so as to be relatively movable with respect to the pedal bracket. Not only can the bracket and the slide plate move relative to each other, but also rattling during assembly can be suppressed.

According to the sixteenth aspect, in addition to the effects of the fourth to sixth aspects, since the slide plate is arranged on the lower surface side of the upper wall portion of the pedal bracket, the movable portion is housed inside the pedal bracket. So that the appearance can be improved.

According to the seventeenth aspect, in addition to the effect of the sixteenth aspect, since the fastening member is fixed to the lower surface of the slide plate, a fastening member such as a fastening member plate is separately fixed. There is no need to provide any additional parts, the structure can be simplified, and the cost can be advantageously obtained.

[0046]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment of the present invention will be described in detail with reference to the drawings.

1 and 2, reference numeral 1 denotes a brake pedal device, and 2 denotes a flange portion 2 provided in front of the vehicle.
C shows a pedal bracket fastened and fixed to a dash lower panel 40 of a dash panel by bolts and nuts (not shown).

The pedal bracket 2 has side walls 2A, 2A spaced apart from each other as a pair of opposing side surfaces.
These are configured in a substantially U-shaped cross section composed of an upper wall portion 2B connecting them above.

Reference numeral 3 denotes a substantially U-shaped pivot bracket which is rotatably supported on a shaft 4 provided on the pedal bracket 2 via a collar 5. The pivot bracket 3 is mounted on the vehicle more than the shaft 4. A pedal arm 8 is provided with a collar 7 on a pedal shaft 6 provided so as to straddle the opposite side plate portions 3A, 3A of the pivot bracket 3 at the front.
And is rotatably supported via.

Reference numeral 9 denotes a cross section fixed to the lower surface of a vehicle body member 41 (details will be described later) located above and behind the dash panel, and arranged on the upper surface of the upper wall 2B of the pedal bracket 2. In this embodiment, the slide plate 9 has a substantially U-shaped slide plate, and the slide plate 9 has an upper wall portion 2B on both sides of an upper wall 9A.
Is formed in a substantially U-shaped cross-section having a downward flange 9B that covers the upper surface.

The above-mentioned slide plate 9 is specifically,
At its rear end, bolt insertion holes 10 and 11 formed in the upper wall 2B of the pedal bracket 2 and the upper wall 9A of the slide plate 9 are provided on the lower surface of a mounting bracket 44 fastened and fixed to a bracket 43 extending from the steering member 42.
A bolt 12 inserted from above the vehicle and a nut 14 fixed to a nut plate 13 provided on the lower surface side of the slide plate 9, that is, the inner lower surface of the upper wall portion 2 </ b> B of the pedal bracket 2 by welding or the like. Bracket 2
Together with the upper wall portion 2B. In this embodiment, the steering member 42 and the bracket 4
3. The mounting bracket 44 forms the vehicle body member 41.

Further, in this embodiment, the bolt insertion hole 10 of the upper wall 2B is formed in a long hole shape opened at the front of the vehicle, so that the pedal bracket 2 is moved in a retreating direction exceeding a predetermined load. When the input is applied, the shaft 4 and the lower surface of the vehicle body member 41 serve as collision absorbing means that allows relative movement in the vehicle front-rear direction.

The upper wall 2 of the pedal bracket 2
B are provided with openings 15 on both side edges, and holes 16 are provided on both sides of the front end of the upper wall 9A of the slide plate 9, and pivot brackets are provided in the openings 15 and the holes 16. A projecting portion 17 provided to project upward from the front end of the third side plate portion 3A is inserted therethrough. A notch 19 provided at the front end of the projection 17 is engaged with the front edge 18 of the hole 16.

Further, between the pedal bracket 2 and the slide plate 9, the pedal bracket 2 and the slide plate 9 are connected, and when an input in a retreating direction exceeding a predetermined load acts on the pedal bracket 2, A connection portion 20 for releasing the connection is provided.

In this embodiment, the connecting portion 20 is constituted by shear pins 23 inserted into insertion holes 21 and 22 formed in the upper wall 2B of the pedal bracket 2 and the upper wall 9A of the slide plate 9, respectively. . In addition, the share pin 23 (the same applies to the share pin in the embodiment described later)
Generally, the pedal bracket 2 and the slide plate 9
A softer material (for example, a synthetic resin or an aluminum material) is used.

The connecting portion 20 is provided in the vicinity of an engaging portion between the front edge portion 18 of the slide plate 9 and the notch portion 19 of the pivot bracket 3. In this embodiment, in particular, in the present embodiment, the connecting portion 20 is provided. Is set in front of the engagement portion on the vehicle and on an extension of the bolt insertion hole 10 formed in a long hole shape.

Therefore, in a normal state where there is no collision,
As described above, the hole 1 at the front end of the slide plate 9
6 is engaged with the notch 19 at the front end of the pivot bracket 3, thereby restricting the pivot bracket 3 from pivoting downward, and allowing the pedal arm 8 to be depressed at a predetermined position. , The pedal arm 8 is rotated around the pedal shaft 6, and a normal master back operation can be performed via the push rod 24 connected to the pedal arm 8.

At the time of a frontal collision of the vehicle, the pedal bracket 2 is moved rearward at the portion of the bolt insertion hole 10 formed as a long hole as the collision absorbing means while shearing the shear pin 23 of the connecting portion 20. The slide plate 9 fixed to the vehicle body member 41 is guided by the upper wall portion 2B of the pedal bracket 2 to move forward relative to the pivot bracket 3 by the reduced deformation due to the movement. Since the pivot bracket 3 and the slide plate 9 are disengaged from each other, the pivot bracket 3 is allowed to rotate, and the pivot bracket 3 is pivoted rearward and downward with the shaft 4 as a fulcrum. 8 is pulled toward the front side of the vehicle.

That is, since the pedal shaft 6 of the pedal arm 8 moves rearward of the vehicle, the depressed position of the pedal arm 8 moves forward accordingly.

According to the structure of the above embodiment, since the rotation of the pivot bracket 3 is normally restricted by the slide plate 9, the pedal arm 8 is rotated about the pedal shaft 6 as a fulcrum, A normal master back operation can be performed via a push rod 24 connected to the arm 8.

On the other hand, when the vehicle collides from the front, the slide plate 9 is inserted into the bolt insertion hole 10 which is the collision absorbing means.
The pivot bracket 3 and the slide plate 9 are disengaged from each other by the contraction movement between the shaft 4 and the fixed portion between the shaft bracket 4 and the lower portion of the vehicle body member 41, thereby allowing the pivot bracket 3 to rotate. The pivot bracket 3 is pivoted downward and rearward with the shaft 4 as a fulcrum so that the stepped-down position of the pedal arm 8 is drawn toward the front of the vehicle, so that the master back moves backward or the dash lower panel 40 moves Even when the push rod 24 of the master back moves backward due to the deformation to the room side, it is possible to avoid a situation in which the depressed position of the pedal arm 8 shifts rearward and causes a sense of incongruity.

Further, the pedal bracket 2 and the slide plate 9 are connected between the pedal bracket 2 and the slide plate 9, and when an input in a retreating direction exceeding a predetermined load acts on the pedal bracket 2, the pedal bracket 2 is moved. Since the connecting portion 20 capable of releasing the connection is constituted by the holes 21 and 22 provided in the upper wall portion 2B of the pedal bracket 2 and the upper wall 9A of the slide plate 9 and the shear pin 23, the load exceeds a predetermined load. Until an input is made, the relative movement of the slide plate 9 with respect to the pedal bracket 2 is restricted, so that the engagement between the slide plate 9 and the pivot bracket 3 can be ensured at the time of assembling work or parts conveyance.

According to the present embodiment, in addition to the above-described effects, the connecting portion 20 is provided near the engaging portion between the slide plate 9 and the pivot bracket 3. As a result, the movement of the slide plate 9 can be restricted, so that the securement of engagement is improved.

Further, since the connecting portion 20 is provided in front of the vehicle with respect to the engaging portion, even if the upper wall portion 2B is wide enough to form the bolt insertion hole 10 and the opening portion 15, the connecting portion 20 can be connected. The set position of the portion 20 has a relatively large margin that does not affect the movement of the slide plate 9, that is, the bolt insertion hole 1 formed in the upper wall portion 2B of the pedal bracket 2.
0, so that it is not necessary to make the pedal bracket 2 large, which can contribute to downsizing of the brake pedal device 1. And since the part has a relatively large margin, the bolt insertion hole 10 can be set as long as possible. Further, usually, the order of assembling the brake pedal device 1 is as follows.
After the slide plate 9 and the pedal bracket 2 are connected, the slide plate 9 and the pedal bracket 2 are connected.
Even when the rivet (shear pin) that can be fastened by one-side work from above is not used and the fastening work is performed from above and below the slide plate 9, interference with other components is avoided. Workability can also be improved.

The pedal bracket 2 is formed to have a substantially U-shaped cross section having a pair of side walls 2A, 2A which are opposed to and spaced apart from each other, and an upper wall 2B which connects them above. The upper wall portion 2B is provided with the connecting portion 20, and the opening portion 1 from which the engaging portion of the pivot bracket 3 that engages with the slide plate 9 protrudes from the upper wall portion 2B.
5, the height near the shaft 4 where the pivot bracket 3 is rotatably provided on the pedal bracket 2 can be suppressed, and the overall size of the brake pedal device 1 can be suppressed. The degree of freedom is increased, and it can be applied to various types of vehicles such as small vehicles.

The upper wall 2B and the slide plate 9 are fastened and fixed to the lower surface of the vehicle body member 41 by bolts 12 inserted from above the vehicle, and provided on the upper wall 2B as the collision absorbing means. The bolt insertion hole 10 is formed in a long hole shape, and the pedal bracket 2 and the slide plate 9 are formed.
Are relatively movable, the structure is simple and the cost can be advantageously obtained.

Moreover, by managing the torque at the time of fastening and fixing, it is possible to easily perform the collision absorption tuning.

Further, since the bolts 12 are inserted from above the vehicle and fastened and fixed as in the present embodiment, the brake pedal device 1 in which the pedal bracket 2 and the pedal arm 8 are assembled in advance is fixed to the dash lower panel 40. Later, a bracket 43 is attached to a steering member 42 which is a vehicle body member 41 for fixing the slide plate 9 to its lower surface.
It is also possible to mount the mounting bracket 44 and a modularized assembly to a steering column shaft (not shown) at once from the rear of the vehicle, thereby improving the assembly workability.

Further, since the connecting portion 20 is set on the extension of the bolt insertion hole 10 formed in the longitudinal direction of the vehicle in the longitudinal direction of the vehicle, the slide plate 9 is moved when the slide plate 9 and the pedal bracket 2 are relatively moved. The plate 9 can be moved stably without any deviation in the moving direction.

Further, since the slide plate 9 is arranged on the upper surface side of the upper wall portion 2B of the pedal bracket 2, when the slide plate 9 is laid out, the shaft 4 and the pivot bracket 3 provided in the pedal bracket 2 are arranged. And so on, so that the degree of freedom in layout can be increased.

The slide plate 9 has a substantially U-shaped cross section having flanges 9B covering the upper wall 2B of the pedal bracket 2 on both sides of the upper wall 9A. As a result, it is easy to set the section modulus of the slide plate 9 itself to improve the rigidity with respect to the input load, and the rigidity can be secured by the flange 9B.
The size of the brake pedal device 1 itself can be reduced, and the overall size of the brake pedal device 1 can be reduced, so that the brake pedal device 1 can be applied to various types of vehicles such as small vehicles.

Furthermore, if the flange 9B is formed downward so as to cover both sides of the upper wall 2B of the pedal bracket 2 as in the present embodiment, it functions as a guide when the slide plate 9 moves, Slide plate 9
Can be moved stably.

FIGS. 3 and 4 show a second embodiment of the present invention. In the second embodiment, in addition to the structure of the first embodiment, the nut plate 13 is connected to the pedal bracket 2. This is provided with a second connecting portion 25 to be connected.

Therefore, the other basic structure is the same as that of the first embodiment, the same portions are denoted by the same reference numerals, and duplicate description will be omitted.

In the second embodiment, the pedal bracket 2 and the nut plate 13 are connected between the pedal bracket 2 and the nut plate 13,
A second connecting portion 25 is provided to release the connection when an input in a reverse direction exceeding a predetermined load acts on the pedal bracket 2.

More specifically, the second connecting portion 25 is provided with a shear pin inserted into insertion holes 26 and 27 formed in the rear end of the upper wall 2B of the pedal bracket 2 and the rear end of the nut plate 13, respectively. 28.

According to the structure of the second embodiment, in addition to the effects of the first embodiment, the nut plate 13
Is provided with the second connecting portion 25 for connecting the nut plate 1 to the pedal bracket 2.
3 rattling can be suppressed.

Further, since the bolts 12 are inserted and fastened and fixed from above the vehicle, the vehicle body member 41 for fixing the slide plate 9 to the lower surface thereof after fixing the brake pedal device 1 including the pedal bracket 2 and the like to the dash lower panel 40. Bracket 4 on the steering member 42
3, when mounting the mounting bracket 44 and the like into a module at once from the rear of the vehicle,
It is also possible to abolish the fastening operation performed by sneaking under the brake pedal 1 or the brake pedal device 1, and it is possible to improve the assembling workability.

FIGS. 5 and 6 show a third embodiment of the present invention. In the third embodiment, in addition to the structure of the first embodiment, the pedal bracket 2, the slide plate 9 and the nut are provided. Second connecting portion 2 for connecting plate 13
9 is provided.

Therefore, the other basic structure is the same as that of the first embodiment, and the same portions are denoted by the same reference numerals and overlapping description will be omitted.

In the third embodiment, the pedal bracket 2 and the slide plate 9 and the nut plate 13 are connected between the pedal bracket 2 and the slide plate 9 and the nut plate 13. A second connection portion 29 is provided for releasing the connection between the slide plate 9 and the nut plate 13 so that the slide plate 9 and the nut plate 13 can move relative to the pedal bracket 2 when an input in a retreat direction exceeding a predetermined load is applied.

Specifically, the second connecting portions 29 are respectively provided at the rear end of the upper wall 2B of the pedal bracket 2, the rear end of the upper wall 9A of the slide plate 9, and the rear end of the nut plate 13. It is constituted by a shear pin 28 inserted through the provided insertion holes 26, 27, 30.

According to the structure of the third embodiment, in addition to the effects of the first embodiment, the pedal bracket 2 is connected to the slide plate 9 and the nut plate 13, and the pedal bracket 2 is fixed to the pedal bracket 2. When an input in the backward direction exceeding the load acts, at least the nut plate 13 and the slide plate 9 release the connection so as to be relatively movable with respect to the pedal bracket 2.
Since the step 9 is provided, the pedal bracket 2 and the slide plate 9 can be reliably moved relative to each other when necessary, and it is possible to suppress rattling at the time of assembly.

Further, since the bolt 12 is inserted and fixed from above the vehicle, the vehicle body member 41 for fixing the slide plate 9 to the lower surface thereof after fixing the brake pedal device 1 including the pedal bracket 2 and the like to the dash lower panel 40. Bracket 4 on the steering member 42
3. After assembling the mounting brackets 44 and the like, it is also possible to mount them all at once from the rear of the vehicle, so that the assembling workability can be improved.

FIGS. 7 to 9 show a fourth embodiment of the present invention. In the fourth embodiment, the slide plate 9 and the nut plate 1 are added to the structure of the first embodiment.
3 is provided.

Therefore, the other basic structure is the same as that of the first embodiment, and the same portions are denoted by the same reference numerals and overlapping description will be omitted.

In the fourth embodiment, the elongated bolt insertion hole 10 provided in the upper wall 2B of the pedal bracket 2 is provided.
Through the slide plate 9 and the nut plate 13
Is provided with a second connecting portion 31 for connecting.

Specifically, the second connecting portion 31 connects the slide plate 9 to the vehicle body member 41 (the mounting bracket 4).
4) Insert holes 3 provided in the upper wall 9A of the slide plate 9 and the front end of the nut plate 13 in front of the vehicle with respect to the bolts 12 and the nuts 14 fastened and fixed to the lower surface portion.
It is constituted by a share pin 28 inserted through 0 and 27.

In this embodiment, in particular, the plate thickness of the nut plate 13 is set thinner than the slide plate 9, and an embossed portion 32 protruding toward the slide plate 9 is formed on the nut plate 13. Is provided with a second connecting portion 31.

The embossed portion 32 has a bolt insertion hole 1 formed in a long hole shape of the upper wall portion 2B of the pedal bracket 2.
0, and is in contact with the lower surface of the slide plate 9 through the bolt insertion hole 10.

According to the structure of the fourth embodiment, in addition to the effects of the first embodiment, the nut plate 1
3 is provided with the second connecting portion 31 that connects the slide plate 9 to the slide plate 9, so that rattling of the nut plate 13 before assembly to the vehicle can be suppressed.

Further, since the bolt 12 is inserted and fixed from above the vehicle, the vehicle body member 41 for fixing the slide plate 9 to the lower surface thereof after fixing the brake pedal device 1 composed of the pedal bracket 2 and the like to the dash lower panel 40. Bracket 4 on the steering member 42
3. After assembling the mounting brackets 44 and the like, it is also possible to mount them all at once from the rear of the vehicle, so that the assembling workability can be improved.

Furthermore, since the second connecting portion 31 is set forward of the vehicle from a fixing portion for fastening and fixing the slide plate 9 to the lower surface portion of the vehicle body member 41, the second connecting portion 25 of the second embodiment is provided. Unlike the second connecting portion 29 of the third embodiment, there is no need for a setting space such as a hole for a share pin on the rear side of the fixing portion.
The entire brake pedal device 1 can be reduced in size without the protrusion 1 protruding.

Since the second connecting portion 31 connects the slide plate 9 and the nut plate 13 through the elongated bolt insertion hole 10,
The pedal bracket 2 is interposed between the slide plate 9 and the nut plate 13, and these slide plates 9
Since the pedal bracket 2 is proud of the nut plate 13 and the nut plate 13, rattling between the slide plate 9 and the pedal bracket 2 before the vehicle is assembled can be suppressed.

Further, since there is no need to release the connection between the pedal bracket 2 and the slide plate 9, the initial dynamic load at which the relative movement of the slide plate 9 starts when the pedal bracket 2 is subjected to an input in a backward direction exceeding a predetermined load. Can be lowered.

Further, the elongated bolt insertion hole 10 serves as a guide, so that the slide plate 9 can be stably moved relative to the pedal bracket 2. In addition, at the initial stage of the movement of the slide plate 9, it is not necessary to shear the shear pin 28 and only the shear pin 23 on the front side needs to be sheared, so that the initial dynamic load at which the relative movement of the slide plate 9 starts can be suppressed low. If the relative movement distance of the slide plate 9 is sufficiently ensured, and it is not necessary to shear the shear pin 28 at the front edge of the bolt insertion hole 10, this can be used as a normal pin connection.

[0097] The front end of the embossed portion 32 is inclined downward, so that the bolt insertion hole 1
From the front edge of No. 0, it can enter the lower side of the upper wall portion 2B, assist in shearing the shear pin 28 as well as contribute to peeling, and serve to release the connection.

The thickness of the nut plate 13 is set to be smaller than that of the slide plate 9, and the embossed portion 32 protruding toward the slide plate 9 is formed on the nut plate 13.
Since the second connecting portion 31 is set on the embossed portion 32, the second connecting portion 31 is formed on the nut plate 13 side where the plate thickness is set thin, so that the processing is simple and the cost can be advantageously obtained. That is, when the embossed portion 32 protruding toward the nut plate 13 is formed on the slide plate 9 having a relatively large thickness due to the requirement of strength and rigidity, it is difficult to form the embossed portion 32 with a small bending radius. Part 32
In order to insert the bolt into the bolt insertion hole 10 of the corresponding upper wall portion 2B and abut on the nut plate 13 side, the width and length of the bolt insertion hole 10 must be increased accordingly. The thin nut plate 13 is simpler in processing than a thick nut plate, and can be formed with a smaller bend radius. Therefore, the width and length of the bolt insertion hole 10 can be relatively small. It also contributes to miniaturization.

The embossed portion 32 is set in the elongated bolt insertion hole 10 of the upper wall portion 2B of the pedal bracket 2, and is brought into contact with the lower surface of the slide plate 9 through the bolt insertion hole 10. The bolt insertion hole 10
Serve as a guide, and the slide plate 9 can be more stably moved relative to the pedal bracket 2.

FIGS. 10 to 12 show a fifth embodiment of the present invention. This fifth embodiment shows a different structure of the second connecting portion of the fourth embodiment described above. Is the same as that of the fourth embodiment, the same reference numerals are given to the same parts, and the duplicate description will be omitted.

In the fifth embodiment, the elongated bolt insertion holes 10 provided in the upper wall 2B of the pedal bracket 2 are formed.
Through the slide plate 9 and the nut plate 13
Is provided with a second connecting portion 33 for connecting.

More specifically, as in the above-described fourth embodiment, the second connecting portion 33 is formed by the bolts 12 and the nuts 14 for fastening and fixing the slide plate 9 to the lower surface of the vehicle body member 41 (the mounting bracket 44). Also in front of the vehicle, the shear pin 2 inserted through the insertion holes 30 and 27 provided in the upper wall 9A of the slide plate 9 and the front end of the nut plate 13, respectively.
8.

In this embodiment, the thickness of the nut plate 13 is set to be smaller than that of the slide plate 9, and a tongue piece 34 projecting toward the slide plate 9 is formed on the nut plate 13. The part 34 is provided with a second connecting part 33.

Further, the tongue piece 34 is formed so as to project from the edge of the nut plate 13 toward the front of the vehicle, and is provided in the bolt insertion hole 10 formed in the elongated shape of the upper wall 2B of the pedal bracket 2. Thus, it is in contact with the lower surface of the slide plate 9 via the bolt insertion hole 10.

According to the structure of the fifth embodiment, in addition to the effects of the fourth embodiment, the tongue piece 34 is formed so as to protrude from the edge of the nut plate 13. In addition to the easy formation of the tongue piece portion 34, the size of the nut plate 13 itself can be minimized, and the width of the bolt insertion hole 10 can be reduced in the widthwise R portion like the embossed portion 32. It is not necessary to include the width including the width, and only the width required by the second connecting portion 33 is sufficient. Therefore, the width of the upper wall portion 2B can be reduced as much as possible, which contributes to downsizing and is advantageous in weight. Can be obtained. The front end of the tongue piece 34 has a downwardly inclined shape, and enters into the lower side of the upper wall 2B from the front end of the bolt insertion hole 10 at the later stage of the sliding movement, and contributes to assisting shearing of the shear pin 28 and peeling. To help break the connection.

FIGS. 13 and 14 show a sixth embodiment of the present invention. This sixth embodiment shows a different structure from the slide plate 9 of the first embodiment described above. Is the same as that of the first embodiment, the same reference numerals are given to the same parts, and the duplicate description will be omitted.

In the sixth embodiment, the slide plate 9 is overlapped on the lower surface of the upper wall 2B of the pedal bracket 2.

Further, on the lower surface of the slide plate 9,
A nut 14 for fastening and fixing the slide plate 9 to the lower surface of the body member 41 is fixed by welding or the like.

According to the structure of the sixth embodiment described above, in addition to the effects of the first embodiment, the slide plate 9 is overlapped on the lower surface of the upper wall portion 2B of the pedal bracket 2. Since the movable portion that is operable when the pedal bracket 2 receives an input in the reverse direction exceeding a predetermined load, such as at the time of a vehicle collision, is housed inside the pedal bracket 2, the appearance can be improved. Interference between the slide plate 9 and peripheral components is avoided, and the slide plate 9 can be stably moved relative to the pedal bracket 2.

Further, since the nut 14 as a member for fastening and fixing is fixed to the lower surface of the slide plate 9, there is no need to separately provide a nut fixing part such as a nut plate, and the structure can be simplified. , And can be advantageously obtained in terms of cost.

In each of the above embodiments, the pedal bracket 2 is fixed to the lower surface of the mounting bracket 44 provided on the bracket 43 extending from the steering member 42. However, the present invention is not limited to this. Instead, it may be fixed to a vehicle body member such as a dash upper panel connected to the upper and rear sides of the dash lower panel 40.

In the first to fifth embodiments, the nut plate 13 on which the nut 14 is fixed is used as the plate for the fastening member. However, a plate on which bolts are fixed may be used. The fastening operation from above the vehicle is performed by the nut instead of the nut 12. Also,
In the sixth embodiment, a bolt may be fixed to the lower surface of the slide plate 9 instead of the nut 14 as a member for fastening and fixing. In these cases, if the bolt insertion holes formed in the mounting bracket 44 are also formed in a U-shape with the front side of the vehicle opened, the pedaling can be performed at a time when the modularized steering members are mounted at once from the rear side of the vehicle. Unnecessary interference with a bolt that projects upward from the bracket can be easily avoided.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a first embodiment of the present invention.

FIG. 2 is a side sectional view of the embodiment.

FIG. 3 is a perspective view showing a second embodiment of the present invention.

FIG. 4 is a side sectional view of a second embodiment of the present invention.

FIG. 5 is a side sectional view showing a main part of a third embodiment of the present invention.

FIG. 6 is a view as seen in the direction of arrow A in FIG. 5;

FIG. 7 is a side sectional view showing a main part of a fourth embodiment of the present invention.

8 is a view in the direction of arrow B in FIG. 7;

FIG. 9 is a sectional view taken along the line CC of FIG. 7;

FIG. 10 is a perspective view showing a fifth embodiment of the present invention.

FIG. 11 is a side sectional view showing a main part of a fifth embodiment of the present invention.

FIG. 12 is a view in the direction of arrow D in FIG. 11;

FIG. 13 is a cutaway perspective view showing a main part of a sixth embodiment of the present invention.

FIG. 14 is a side sectional view showing a main part of a sixth embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 1 brake pedal device 2 pedal bracket 2A side wall 2B upper wall 3 pivot bracket 4 shaft 6 pedal shaft 8 pedal arm 9 slide plate 10 bolt insertion hole (fastening fixing member insertion hole) 12 bolt (fastening fixing member) 13 nut Plate (fastening member plate) 14 Nut (fastening / fixing member) 15 Opening 17 Projecting portion (meshing portion) 20 Connecting portion 25, 29, 31, 33 Second connecting portion 32 Embossed portion 34 Tongue piece 40 Dash lower panel ( Dash panel) 41 Body parts

Claims (17)

[Claims] 1. A pedal bracket fixed to a dash panel, a pivot bracket rotatably supported by a shaft provided on the pedal bracket, and a pedal shaft provided on the pivot bracket in front of the shaft with respect to a vehicle. A pedal arm rotatably supported on the dash panel and fixed to the lower surface of the vehicle body member above and behind the dash panel, and provided at the rear of the pedal bracket;
In a normal state, a slide plate that engages with a pivot bracket is provided, and when an input in a retreating direction exceeding a predetermined load acts on the pedal bracket, at least the relative movement of at least the shaft and the lower surface in the vehicle longitudinal direction. A collision absorbing unit that allows the pivot bracket and the pivot bracket to slide when the shaft and the fixed unit relatively shrink and move, between the fixed unit between the slide plate and the lower surface unit and the shaft. The pivot bracket is configured to rotate downward and rearward around the shaft by disengaging from the plate, and the pedal bracket and the slide plate are disposed at least between the pedal bracket and the slide plate. While being connected, an input in a backward direction exceeding a predetermined load acts on the pedal bracket. And a connecting portion capable of releasing the connection. 2. The brake pedal device for an automobile according to claim 1, wherein the connecting portion is provided near an engaging portion between the slide plate and the pivot bracket. 3. The brake pedal device for an automobile according to claim 1, wherein the connecting portion is provided in front of the vehicle with respect to an engaging portion between the slide plate and the pivot bracket. 4. The pedal bracket is formed in a substantially U-shaped cross section having a pair of side walls disposed to be opposed to and separated from each other, and an upper wall connecting the pedal brackets above the pair of side walls. The vehicle according to any one of claims 1 to 3, wherein a connecting portion is provided, and an opening is provided in the upper wall portion so that a meshing portion of a pivot bracket that engages with the slide plate protrudes. Brake pedal device. 5. An upper wall portion and a slide plate are fastened and fixed to a lower surface portion of a vehicle body member by a fastening member inserted from above the vehicle, and a fastening and fixing provided on the upper wall portion as the collision absorbing means. The brake pedal device for an automobile according to claim 4, wherein the insertion member insertion hole is formed in an elongated shape so that the pedal bracket and the slide plate can be relatively moved. 6. The brake pedal device for an automobile according to claim 5, wherein the connecting portion is set on an extension of the fastening fixing member insertion hole formed in a long hole shape in a vehicle front-rear direction. 7. The brake pedal device for an automobile according to claim 4, wherein said slide plate is arranged on an upper surface side of an upper wall portion of a pedal bracket. 8. The brake pedal device for an automobile according to claim 7, wherein the slide plate has a substantially U-shaped cross section having flanges on both sides. 9. A second plate for connecting a fastening member plate having at least one of a pedal bracket and a slide plate, wherein a fastening member plate having one member for fastening and fixing is fixedly provided on the lower surface side of the slide plate.
9. A connecting portion, wherein the slide plate is fastened and fixed to a lower surface portion of a vehicle body member by the fastening member plate and another member for fastening and fixing from above the vehicle. A brake pedal device for an automobile according to claim 1. 10. The brake pedal device for an automobile according to claim 9, wherein the second connecting portion is set forward of a fixing portion for fastening and fixing a slide plate to the lower surface portion. 11. The second connecting portion connects the slide plate and the fastening member plate via the elongated fastening member insertion hole. A vehicle brake pedal device according to claim 10. 12. An embossed portion or a tongue portion protruding toward the slide plate is formed on the fastening member plate,
The brake pedal device for an automobile according to any one of claims 9 to 11, wherein a second connecting portion is provided on the embossed portion or the tongue piece. 13. The device according to claim 1, wherein the tongue piece is formed to protrude from an edge of the plate for the fastening member.
3. The brake pedal device for an automobile according to 2. 14. The embossed portion or the tongue piece is set in an elongated hole for fastening and fixing member inserted in the upper wall of the pedal bracket, and contacts the lower surface of the slide plate via the fastening and fixing member insertion hole. 2. The device according to claim 1, wherein
A brake pedal device for an automobile according to claim 2 or claim 13. 15. The second connecting portion connects the pedal bracket to the slide plate and the fastening member plate, and when the pedal bracket receives an input in a retreating direction exceeding a predetermined load, at least the fastening member plate and the sliding member. 10. The brake pedal device for an automobile according to claim 9, wherein the plate and the plate are provided so as to be relatively movable with respect to the pedal bracket to release the connection. 16. The brake pedal device for an automobile according to claim 4, wherein the slide plate is arranged on the lower surface side of the upper wall portion of the pedal bracket. 17. The brake pedal device according to claim 16, wherein a fastening member is fixed to a lower surface of the slide plate.