JP2022182501A - Vehicular pedal retreat prevention structure - Google Patents

Abstract

To provide a vehicular pedal retreat prevention structure capable of mounting a retreat prevention bracket while suppressing an increase in a vehicle body weight.SOLUTION: A vehicular pedal retreat prevention structure includes: a vehicular dash panel 6; a vehicular pedal 8 mounted on the dash panel; and a retreat prevention bracket 10 installed on the vehicular back side of the vehicular pedal and preventing retreat of the vehicular pedal by abutment on the vehicular pedal. The retreat prevention bracket 10 is fixed at the front part of a knee airbag device 12 mounted at the vehicular back side of the vehicular pedal 8 and extends toward the front of the vehicle.SELECTED DRAWING: Figure 1

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle pedal retraction prevention structure, and more particularly to a vehicle pedal retraction prevention structure for preventing retraction of a vehicle pedal in the event of a frontal collision of the vehicle.

During a frontal collision of a vehicle, a vehicle pedal (brake pedal, etc.) fixed to the dash panel may move backward toward the rear of the vehicle. When the vehicle pedal is retracted, the foot space of the driver's seat becomes narrower and may come into contact with the driver's leg. In order to avoid this, conventionally, there has been known a pedal retraction prevention structure that prevents the vehicle pedal from retracting in the event of a frontal collision of the vehicle (for example, Patent Document 1).

In the pedal retraction prevention structure of Patent Document 1, a bracket fixed to an instrument panel member is arranged to extend to a rear position of a vehicle pedal. In the event of a frontal collision of the vehicle, when the vehicle pedal retreats, it abuts against the bracket, preventing the vehicle pedal from retreating any further.

JP 2019-144782 A

However, in the vehicle pedal retraction prevention structure of Patent Document 1, the bracket extends from the instrument panel member to the rear position of the vehicle pedal, so there is a problem that the weight of the vehicle increases. Specifically, the instrument panel member is arranged at an optimum position in consideration of the airbag support function and load transmission function. The weight of the vehicle body is increased because the instrument panel member to be used is also heavy.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a pedal retraction prevention structure for a vehicle in which a retraction prevention bracket can be provided while suppressing an increase in vehicle weight. purpose.

In order to solve the above-described problems, the present invention provides a vehicle dash panel, a vehicle pedal attached to the dash panel, and a vehicle pedal provided at the rear of the vehicle to prevent a vehicle from crashing in the event of a frontal collision of the vehicle. a backward movement prevention bracket for preventing backward movement of the vehicle pedal by abutting against the pedal, wherein the backward movement prevention bracket is located at a knee provided behind the vehicle pedal. It is characterized by being fixed to the front part of the airbag device and extending forward of the vehicle.

According to the present invention configured as described above, the anti-backup bracket is fixed to the front portion of the knee airbag device provided to the rear of the vehicle from the vehicle pedal, and extends forward of the vehicle. The anti-retraction bracket can be formed shorter than the conventional one, thereby suppressing an increase in the weight of the vehicle body and providing the anti-backward bracket.

In the present invention, preferably, the anti-backup bracket is offset inward in the vehicle width direction with respect to the center axis of the vehicle pedal in the vehicle width direction in a plan view, and is provided at a position facing the vehicle pedal. there is
According to the present invention configured as described above, even if an obstacle collides obliquely from the front of the vehicle and the vehicle pedal retreats obliquely rearward, the vehicle pedal abuts against the retreat prevention bracket. and prevent the vehicle pedal from moving backward.

In the present invention, preferably, the knee airbag device includes a housing, and the knee airbag device includes a fixing portion on the upper surface of the housing for fixing the knee airbag device to an instrument panel member and/or the vehicle body, and prevents backward movement. The bracket extends forward of the vehicle substantially flush with the upper surface of the housing.
According to the present invention configured as described above, when the vehicle pedal comes into contact with the anti-backup bracket, the load applied to the anti-backup bracket is received in the shearing direction by the fixing portion of the knee airbag device, so that the vehicle can be easily moved. It is possible to reliably prevent the rearward movement of the pedal.

According to the present invention, it is possible to provide a vehicle pedal retraction prevention structure in which a retraction prevention bracket can be provided while suppressing an increase in vehicle weight.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a vehicle to which a pedal retreat prevention structure according to an embodiment of the present invention is applied, viewed obliquely from the right rear and side; 1 is a partial cross-sectional plan view of a pedal retreat prevention structure according to an embodiment of the present invention, viewed from above; FIG. 1 is a partial cross-sectional side view of a pedal retraction prevention structure according to an embodiment of the present invention, viewed from the left side; FIG. FIG. 2 is a perspective view of a backward-preventing bracket and a knee airbag device of the pedal backward-moving prevention structure according to the present embodiment; FIG. 3 is a plan view of the backward movement prevention bracket and the knee airbag device of the pedal backward movement prevention structure according to the embodiment of the present invention; FIG. 4 is a side view of the backward movement prevention bracket and the knee airbag device of the pedal backward movement prevention structure according to the embodiment of the present invention; FIG. 2 is a partial cross-sectional front view showing the knee airbag according to the present embodiment, its mounting member to the vehicle body, and the anti-backward bracket. It is a figure which shows the initial state (A) before the collision of a vehicle, and the state (B) which the brake pedal and the backward prevention bracket contact|abut after a collision.

Hereinafter, a vehicle pedal retraction prevention structure according to an embodiment of the present invention will be described with reference to the accompanying drawings.
First, a vehicle pedal retreat prevention structure according to an embodiment of the present invention will be described with reference to FIGS. 1 to 3. FIG. FIG. 1 is a perspective view of a vehicle to which a pedal retraction prevention structure is applied, viewed obliquely from the rear right side and FIG. It is the partial cross section side view which looked at the retreat prevention structure from the left side.

In this specification, "front" is the front side of the vehicle, "rear" is the rear side of the vehicle, "left" is the left side with respect to the front direction of the vehicle, "right" is the right side with respect to the front direction of the vehicle, and "longitudinal direction" is the longitudinal direction of the vehicle, "transverse direction" is the lateral direction perpendicular to the longitudinal direction of the vehicle, "transverse direction outer side" is the lateral side of the vehicle, and "transverse direction inner side" is the lateral direction of the vehicle. The inner side in the left-right direction is shown.

As shown in FIGS. 1 to 3, the vehicle pedal retraction prevention structure 1 includes a dash panel 6, a brake pedal 8 that is a vehicle pedal, and a retraction prevention bracket .

As shown in FIG. 1, the dash panel 6 is arranged between the engine room (not shown) in the front part of the vehicle body 2 and the passenger compartment 4 to separate the passenger compartment 4 from the engine room. The dash panel 6 is formed of a plate member extending in the vehicle width direction from the right side 2a to the left side 2b of the vehicle body 2 and extending in the vehicle vertical direction.

As shown in FIGS. 2 and 3, the brake pedal 8 includes a brake pad 8a which is a rectangular flat member, a pedal arm 8b, and a support shaft extending through the upper end of the pedal arm 8b in the vehicle width direction. 8 c and a fixing member 8 d such as a bolt for fixing the support shaft 8 c to the dash panel 6 . The pedal arm 8b is inclined downward toward the rear side of the vehicle when viewed from the side (see FIG. 3), and extends toward the rear side of the vehicle while being inclined toward the inside in the vehicle width direction when viewed from above (see FIG. 2). The brake pedal 8 is arranged in the foot space of the driver's seat, and is attached to the dash panel 6 by a fixing member 8d so as to be rotatable around a support shaft 8c. Also, the brake pedal 8 is connected to a brake mechanism (not shown) for stopping the vehicle. When the driver depresses the brake pad 8a, the brake pad 8a and the pedal arm 8b rotate around the support shaft 8c to activate the brake mechanism and stop the vehicle.
In this embodiment, an example in which the "vehicle pedal" is a brake pedal is shown, but it is not limited to this. You may apply to the pedals for vehicles, such as.

As shown in FIGS. 2 and 3 , the anti-backward bracket 10 is fixed to the front portion of the knee airbag device 12 and extends forward of the vehicle toward the pedal arm 8 b of the brake pedal 8 . The backward prevention bracket 10 is positioned between the support shaft 8c of the brake pedal 8 and the brake pad 8a in the vertical direction of the vehicle. The backward-preventing bracket 10 is formed of a metal plate-like member, and includes a flat base portion 10a, a right extending portion 10b horizontally extending forward from the right end portion of the base portion 10a, and a left end portion of the base portion 10a. A left extending portion 10c extending horizontally forward from the base portion 10a, a mounting portion 10d extending horizontally rearward from the base portion 10a and vertically extending downward from the rear edge thereof, and a concave portion extending in the vehicle front-rear direction on the upper surface of the base portion 10a. and a groove portion 10f.

As shown in FIG. 2, the backward prevention bracket 10 is arranged at a position facing the pedal arm 8b of the brake pedal 8 and the support shaft 8c. A width W1 in the vehicle width direction between the right extending portion 10b and the left extending portion 10c of the backward prevention bracket 10 is 3 to 7 times as large as the width W2 in the vehicle width direction of the pedal arm 8b of the brake pedal 8. , preferably 4 to 6 times the size. The backward-preventing bracket 10 has a right extension portion 10b at the same position as the right end portion of the support shaft 8c of the brake pedal 8 in the vehicle width direction, and a left extension portion 10c at the left end portion of the support shaft 8c and the pedal. It is positioned inside in the vehicle width direction from the arm 8b.

In addition, the vehicle width direction center axis CL1 of the backward prevention bracket 10 is offset inward in the vehicle width direction (left side in the vehicle width direction) with respect to the vehicle width direction center axis CL2 of the support shaft 8c of the brake pedal 8 in a plan view. placed in position. The mounting portion 10d and the groove portion 10f of the anti-backup bracket 10 are arranged at positions offset inward in the vehicle width direction with respect to the center axis CL1 of the anti-backup bracket 10 in the vehicle width direction.
In this embodiment, the case where the driver's seat is on the right side of the vehicle is shown. , the reverse prevention bracket 10 is offset to the right side (inner side) in the vehicle width direction with respect to the brake pedal 8 .

As shown in FIGS. 1 to 3, the knee airbag device 12 is formed of a flat rectangular parallelepiped extending in the vehicle width direction. The knee airbag device 12 is arranged horizontally below the instrument panel member 18 and behind the brake pedal 8 in the vehicle. The knee airbag device 12 has a housing, which is composed of a top surface portion 12a, a bottom surface portion 12b, a front wall portion 12c, a rear wall portion 12d and side walls 12e. The knee airbag device 12 includes an airbag (not shown) inside, and is configured to protect the knees of the occupant by protruding and expanding outside the housing in the event of a collision. .

The knee airbag device 12 is fixed to an instrument panel member 18 and the vehicle body 2 by an outer bracket 14 and an inner bracket 16 which are fixing portions. The outer bracket 14 extends horizontally outward in the vehicle width direction, and has one end fixed to the right side portion 2 a of the vehicle body 2 and the other end fixed to the upper surface portion 12 a of the knee airbag device 12 . The inner bracket 16 extends vertically between the driver's seat and the passenger's seat, and has one end fixed to the central portion of the instrument panel member 18 and the other end fixed to the upper surface portion 12 a of the knee airbag device 12 .

Next, the mounting structure of the backward prevention bracket 10 to the knee airbag device 12 will be described with reference to FIGS. 4 to 7. FIG. 4 is a perspective view of the anti-backup bracket and the knee airbag device, FIG. 5 is a plan view of the anti-backup bracket and the knee airbag device, and FIG. 6 is a side view of the anti-backup bracket and the knee airbag device. 7 is a partial cross-sectional front view showing the knee airbag, its mounting member to the vehicle body, and the anti-backward bracket.

As shown in FIGS. 4 to 6, the anti-retraction bracket 10 is arranged such that the upper surface of the base portion 10a and the upper surface of the upper surface portion 12a of the knee airbag device 12 are substantially at the same height when viewed from the side. It is attached to the front wall portion 12c of the knee airbag device 12 by 10d. The base portion 10a, the right extension portion 10b, and the left extension portion 10c of the backward prevention bracket 10 extend forward of the vehicle substantially in the same plane (height) with respect to the upper surface of the upper surface portion 12a of the knee airbag device 12. As shown in FIG. In addition, the backward movement prevention bracket 10 is arranged outside in the vehicle width direction of the center line of the housing in the vehicle width direction in a plan view (see FIG. 5).

As shown in FIG. 7, the outer bracket 14 and the inner bracket 16 are fixed to the upper surface portion 12a of the knee airbag device 12. As shown in FIG. The outer bracket 14 extends in the vehicle width direction from the upper surface of the upper surface portion 12 a of the knee airbag device 12 and is fixed to the right side portion 2 a of the vehicle body 2 . The inner bracket 16 extends upward from the upper surface of the upper surface portion 12 a of the knee airbag device 12 and is fixed to the central portion of the instrument panel member 18 .

Next, with reference to FIG. 8, the operation of the vehicle pedal retreat prevention structure according to the present embodiment at the time of collision will be described.
8A and 8B are diagrams showing the initial state of the vehicle before the collision and the state of contact between the brake pedal and the anti-backup bracket after the collision, where (A) is the initial state before the collision and (B) is the It shows a state in which the brake pedal and the anti-backup bracket are in contact with each other after a collision.

In the initial state of the vehicle before the collision shown in FIG. The backward prevention bracket 10 is arranged at a position facing the brake pedal 8 .
In the state after the collision of the vehicle shown in FIG. 8B, the brake pedal 8 has retreated rearward compared to the initial state due to the impact at the time of the collision. The pedal arm 8b of the brake pedal 8 is placed between the right extending portion 10b and the left extending portion 10c of the anti-backup bracket 10, and the pedal arm 8b is in contact with the front surface of the base portion 10a of the anti-backup bracket 10. This abutment prevents the vehicle pedal from moving backward any further.

Next, the effects of the vehicle pedal retraction prevention structure according to the present embodiment will be described.
First, the vehicle pedal retraction prevention structure 1 according to the embodiment of the present invention includes a vehicle dash panel 6, a brake pedal 8 (vehicle pedal) attached to the dash panel 6, and a brake pedal 8 behind the vehicle. and a backward-preventing bracket 10 for preventing backward movement of the brake pedal 8 by coming into contact with the brake pedal 8 at the time of a frontal collision of the vehicle. It is fixed to the front part of the knee airbag device 12 which is mounted and extends forward of the vehicle.

According to this embodiment configured as described above, the backward prevention bracket 10 is fixed to the front portion of the knee airbag device 12 provided behind the vehicle relative to the brake pedal 8 and extends forward of the vehicle. Therefore, the anti-retraction bracket 10 can be formed shorter than the conventional one, and thus the anti-retraction bracket 10 can be provided while suppressing an increase in the weight of the vehicle body.

In the present embodiment, the anti-retraction bracket 10 is offset inward in the vehicle width direction with respect to the center axis of the brake pedal 8 in the vehicle width direction and is provided at a position facing the brake pedal 8 in plan view. It is According to this embodiment configured as described above, when the vehicle collides obliquely from the front right, the brake pedal 8 tends to retreat in the rear left oblique direction. Since the brake pedal 8 is offset inward in the vehicle width direction (left side in the vehicle width direction in this embodiment), the brake pedal 8 can be brought into contact with the anti-backup bracket 10 to prevent the brake pedal 8 from moving backward.

In this embodiment, the knee airbag device 12 includes a housing, and the knee airbag device 12 has an outer bracket 14 and/or an outer bracket 14 on the upper surface of the housing for fixing the knee airbag device 12 to an instrument panel member and/or the vehicle body. Alternatively, an inner bracket 16 (fixed portion) is provided, and the anti-backup bracket 10 extends forward of the vehicle substantially flush with the upper surface of the upper surface portion 12a of the housing. According to this embodiment configured as described above, when the brake pedal 8 comes into contact with the anti-backup bracket 10, the load applied to the anti-backup bracket 10 is transferred to the outer bracket 14 of the knee airbag device 12 and/or the outer bracket 14 of the knee airbag device 12 and/or the load applied to the anti-backup bracket 10. Since the brake pedal 8 is received in the shear direction by the inner bracket 16, it is possible to reliably prevent the brake pedal 8 from retreating.

Further, in the present embodiment, since the groove portion 10 extending in the longitudinal direction of the vehicle is formed in the base portion 10a of the anti-backup bracket, the rigidity of the anti-backup bracket can be increased, and the brake pedal 8 can be reliably moved back. can be prevented.

1 Pedal Backward Prevention Structure 2 Vehicle Body 4 Vehicle Interior 6 Dash Panel 8 Brake Pedal 8a Brake Pad 8b Pedal Arm 8c Spindle 8d Fixing Member 10 Backward Prevention Bracket 10a Base 10b Right Extension Portion 10c: Left extending portion 10d: Mounting portion 10f: Groove portion 12: Knee airbag device 14: Outer bracket 16: Inner bracket 18: Instrument panel member CL1: Vehicle width direction center axis CL2: Vehicle width direction center axis W1: For backward prevention Width W2 of the bracket in the vehicle width direction: Width of the pedal arm in the vehicle width direction

Claims (3)

vehicle dash panel,
A vehicle pedal attached to the dash panel,
A vehicle pedal backward movement prevention structure comprising: a backward movement prevention bracket provided behind the vehicle pedal and preventing the backward movement of the vehicle pedal by abutting against the vehicle pedal in the event of a frontal collision of the vehicle. and
1. A pedal retreat prevention structure for a vehicle, wherein said retreat prevention bracket is fixed to a front portion of a knee airbag device provided behind said vehicle pedal and extends forward of said vehicle. The anti-backward bracket is provided at a position offset inward in the vehicle width direction with respect to a center axis in the vehicle width direction of the vehicle pedal and facing the vehicle pedal in a plan view. 2. The vehicle pedal retraction prevention structure according to 1. The knee airbag device includes a housing,
The knee airbag device includes a fixing portion on the upper surface of the housing for fixing the knee airbag device to an instrument panel member and/or a vehicle body,
4. The pedal retraction prevention structure for a vehicle according to claim 2, wherein said retraction prevention bracket extends forward of the vehicle substantially flush with an upper surface of said housing.

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