JP7308583B2 - Backward prevention structure of the brake pedal - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for preventing backward movement of a brake pedal in the event of a vehicle collision.

When a large load is applied from the front of the vehicle due to a frontal collision or the like, and the front portion of the vehicle body deforms and moves toward the rear of the vehicle, the brake pedal moves backward and may collide with the legs of the occupant due to the deformation and movement. Japanese Patent Laid-Open No. 2002-100001 discloses that a backward movement prevention member is provided at the vehicle rear of a suspension type pedal arm. The pedal arm is rotatably suspended from the vehicle body via a rotation shaft. The anti-retreat member rotates the pedal arm about the rotation shaft so that the pedal surface of the pedal arm relatively moves forward of the vehicle by coming into contact with the pedal arm that has retreated before the vehicle crashes.

JP 2014-148203 A

Before the vehicle collision, it is desired to move the brake pedal forward of the vehicle more quickly. It is expected that the displacement amount of the brake pedal to the rear of the vehicle can be effectively reduced by moving the brake pedal to the front of the vehicle more quickly.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a brake pedal retreat prevention structure capable of moving the brake pedal forward of the vehicle more quickly.

A brake pedal retraction prevention structure according to an aspect of the present invention includes:
a first member that traverses the brake pedal arm and vehicle component members arranged in parallel in the vehicle width direction at the rear of the vehicle;
A second member constructed in front of the vehicle of the first member,
The first member is
a free end of the arm located behind the vehicle;
a fixed end located on the component member side in the vehicle width direction with respect to the free end;
a first intermediate portion located behind the vehicle relative to a straight line connecting the free end and the fixed end;
The second member is
one end connected to the free end side;
the other end connected to the fixed end;
a second intermediate portion spaced apart from both the first intermediate portion and the component;
The interval between the second intermediate portion and the component member is smaller than the interval between the arm and the member of the arm that faces the rear of the vehicle, out of the free end portion and the one end portion.

The brake pedal retraction prevention structure of the present invention is composed of a plurality of members including a first member and a second member. The second member is installed on the free end side and the fixed end side of the first member in front of the vehicle. The free end of the first member is located vehicle rearward of the arm of the brake pedal. Therefore, in the brake pedal retraction prevention structure of the present invention, the free end of the first member or one end of the second member faces the vehicle rear of the brake pedal, and the vehicle component members of the vehicle face the second member. The second intermediate portions of the two members face each other.

In the brake pedal retraction prevention structure of the present invention, the distance between the second intermediate portion of the second member and the structural member of the vehicle is such that the arm of the brake pedal and the member facing the arm (the free end of the first member or the second one end of two members). Hereinafter, the distance between the second intermediate portion of the second member and the component of the vehicle will be referred to as the first distance. Further, the distance between the arm of the brake pedal and the member of this arm facing the rear of the vehicle (the free end of the first member or one end of the second member) is called the second distance. The first spacing is less than the second spacing so that when the brake pedal and the vehicle component are retracted, the vehicle component first impacts the second member. When a component of the vehicle collides with the second member, the second intermediate portion deforms so as to bend toward the rear of the vehicle. When the second intermediate portion of the second member deforms to bend toward the rear of the vehicle, the first member deforms such that the free end and the fixed end approach each other in front of the vehicle. That is, the free end moves forward of the vehicle. Since the free end of the brake pedal arm is located behind the vehicle, moving the free end forward of the vehicle pushes the brake pedal arm forward of the vehicle. Therefore, the brake pedal retraction prevention structure of the present invention can move the brake pedal forward of the vehicle more quickly, and can effectively reduce the amount of displacement of the brake pedal toward the rear of the vehicle.

FIG. 1 is a top view showing the backward movement prevention structure of the brake pedal of the embodiment. 2A and 2B are explanatory diagrams for explaining the behavior of the brake pedal retraction prevention structure, the brake pedal, and the peripheral members thereof according to the embodiment at the time of a frontal collision. indicate.

An embodiment of a brake pedal retreat prevention structure of the present invention will be described below with reference to the drawings. The same reference numerals in the drawings indicate the same names. In the following description, the terms "front" and "rear" refer to directions with reference to the front of the vehicle, and arrow FR indicates the front side in the longitudinal direction of the vehicle, and arrow RR indicates the front side. indicates the posterior side. Also, the central side in the vehicle width direction is defined as "vehicle interior" and the outer side is defined as "vehicle exterior".

〔overall structure〕
In the brake pedal retraction prevention structure 1 of the embodiment, when a large load is applied from the front of the vehicle due to a frontal collision or the like and the front portion of the vehicle body deforms and moves toward the rear of the vehicle, the brake pedal 5 moves backward along with this deformation movement. is a structure that prevents the collision with the passenger's lower legs. Components of the vehicle are arranged in parallel in the vehicle width direction of the brake pedal 5 . When the front portion of the vehicle deforms and moves toward the rear of the vehicle, the brake pedal 5 retreats, and the components of the vehicle arranged in parallel in the vehicle width direction of the brake pedal 5 also retreat. In this example, the accelerator pedal 6 will be described as an example of a structural member of the brake pedal 5 arranged in parallel in the vehicle width direction.

The brake pedal 5 includes a base portion (not shown), an arm 51 and a pedal portion 52 . A base of the brake pedal 5 is fixed to a component of the vehicle, and an arm 51 is rotatably suspended from the base. The pedal portion 52 is attached to the vehicle lower side of the arm 51 . An accelerator pedal 6 is arranged in parallel with the brake pedal 5 in the width direction of the vehicle. In this example, an accelerator pedal 6 is arranged outside the brake pedal 5 in the vehicle width direction. The accelerator pedal 6 includes a base portion 60 , an arm 61 and a pedal portion 62 . As with the brake pedal 5 , the accelerator pedal 6 has a base 60 fixed to a component of the vehicle, and an arm 61 rotatably suspended from the base 60 . The pedal portion 62 is attached to the vehicle lower side of the arm 61 . A portion of the arm 51 of the brake pedal 5 positioned above the vehicle is arranged in parallel with the base portion 60 of the accelerator pedal 6 in the vehicle width direction.

As shown in FIG. 1, the brake pedal retraction prevention structure 1 of the embodiment includes a first member 10 that traverses an arm 51 of the brake pedal 5 and a base portion 60 of the accelerator pedal 6 that are arranged in parallel in the vehicle width direction behind the vehicle. . One of the features of the brake pedal backward movement prevention structure 1 of the embodiment is that it includes a second member 20 that is installed in front of the first member 10 with respect to the vehicle. Hereinafter, the detailed configuration of the brake pedal retraction prevention structure 1 will be described first with reference to FIG. 1, and then the operation of the brake pedal retraction prevention structure 1 will be described with reference to FIG.

[First member]
The first member 10 is an elongated member extending across the arm 51 of the brake pedal 5 and the base 60 of the accelerator pedal 6 . The first member 10 of this example is made of a strip-shaped plate material. When the first member 10 is made of a plate material, the first member 10 is arranged so that the front and rear surfaces face the vehicle front-rear direction.

The first member 10 comprises a free end 11 , a fixed end 12 and a first intermediate portion 13 . The free end 11 and the fixed end 12 are the longitudinal ends of the first member 10 . The first intermediate portion 13 is a region connecting the free end portion 11 and the fixed end portion 12 .

The fixed end 12 is fixed to a component of the vehicle. The vehicle shown in FIG. 1 is a semi-cab-over type vehicle, and a suspension tower 8 is provided on the vehicle rear side and the vehicle outside side of the dash panel 7 . A bracket 9 is provided to connect the dash panel 7 and the suspension tower 8 , and the fixed end 12 is fixed to this bracket 9 . The bracket 9 is provided as a countermeasure against frontal collision. The fixed end portion 12 of this example includes a horizontal portion 121 along the first intermediate portion 13 and a vertical portion 122 extending forward of the vehicle with respect to the horizontal portion 121 . That is, the fixed end portion 12 of this example is a substantially L-shaped portion that is bent. A vertical portion 122 of the fixed end portion 12 is fixed to the bracket 9 .

The free end 11 is not fixed to a component of the vehicle. That is, the first member 10 is cantilevered at the fixed end 12 with respect to the component of the vehicle. The free end portion 11 of this example includes a horizontal portion 111 along the first intermediate portion 13 and a vertical portion 112 extending forward of the vehicle with respect to the horizontal portion 111 . In other words, the free end portion 11 of this example is a substantially L-shaped portion that is bent. A lateral portion 111 of the free end portion 11 is positioned behind the arm 51 of the brake pedal 5 with respect to the vehicle. The lateral portion 111 is normally positioned with a gap from the arm 51 of the brake pedal 5 . The spacing here refers to the narrowest spacing between the lateral portion 111 and the arm 51 of the brake pedal 5 . A vertical portion 112 of the free end portion 11 is arranged to face a side surface of the arm 51 of the brake pedal 5 in the vehicle width direction.

The first intermediate portion 13 is positioned rearward of the vehicle from a straight line connecting the free end portion 11 and the fixed end portion 12 . Here, the first intermediate portion 13 has a bending point between the horizontal portion 111 and the vertical portion 112 of the free end portion 11 and a bending point between the horizontal portion 121 and the vertical portion 122 of the fixed end portion 12. It is located on the rear side of the vehicle from the connecting straight line. The first intermediate portion 13 is configured to protrude toward the rear of the vehicle in the middle of the longitudinal direction. It is preferable that the most rearward portion of the first intermediate portion 13 be located rearward of the base portion 60 of the accelerator pedal 6 . The first intermediate portion 13 of this example is configured to be bent in the middle of the longitudinal direction so as to protrude rearward of the vehicle. The first intermediate portion 13 may have a curved shape with a plurality of curved points or an arc-shaped curved shape, as long as a convex portion is formed toward the rear of the vehicle in the middle of the longitudinal direction. good.

[Second member]
The second member 20 is an elongated member constructed in front of the first member 10 with respect to the vehicle. The second member 20 of this example is made of a strip-shaped plate material. When the second member 20 is made of a plate material, the second member 20 is arranged so that the front and back surfaces face the vehicle front-rear direction.

The second member 20 includes one end portion 21 , the other end portion 22 and a second intermediate portion 23 . The one end 21 and the other end 22 are the ends of the second member 20 in the longitudinal direction. The second intermediate portion 23 is a region that connects the one end portion 21 and the other end portion 22 .

The one end portion 21 is connected to the free end portion 11 side of the first member 10 . The free end portion 11 side of the first member 10 is closer to the free end portion 11 than the central portion between the free end portion 11 and the fixed end portion 12 . One end 21 in this example is connected to a lateral portion 111 of the free end 11 . Specifically, the one end portion 21 of this example is connected to the vehicle front side surface of the lateral portion 111 at the vehicle rear side surface. Therefore, the one end portion 21 is located behind the arm 51 of the brake pedal 5 with respect to the vehicle. The one end 21 is normally positioned with a gap from the arm 51 of the brake pedal 5 . The spacing here refers to the narrowest spacing between the one end 21 and the arm 51 of the brake pedal 5 . In this example, one end portion 21 of the free end portion 11 of the first member 10 and the one end portion 21 of the second member 20 faces the arm 51 of the brake pedal 5 . One end 21 may be connected to the longitudinal portion 112 of the free end 11 .

The other end portion 22 is connected to the fixed end portion 12 side of the first member 10 . The fixed end portion 12 side of the first member 10 is closer to the fixed end portion 12 than the central portion between the free end portion 11 and the fixed end portion 12 . The other end portion 22 of this example has a portion bent forward of the vehicle, and this bent portion is connected to the vertical portion 122 of the fixed end portion 12 .

The second intermediate portion 23 is positioned spaced apart from both the first intermediate portion 13 of the first member 10 and the base portion 60 of the accelerator pedal 6 . The distance between the second intermediate portion 23 and the base portion 60 of the accelerator pedal 6 is the narrowest distance between the second intermediate portion 23 and the base portion 60 of the accelerator pedal 6 . The distance between the second intermediate portion 23 and the first intermediate portion 13 is the narrowest distance in the region of the base portion 60 of the accelerator pedal 6 located behind the vehicle.

The second intermediate portion 23 is preferably linear. Since the second intermediate portion 23 is linear, when the base portion 60 of the accelerator pedal 6 collides with the second intermediate portion 23 , the impact caused by the collision can be easily transmitted to the entire second member 20 quickly. The second intermediate portion 23 may be curved or bent.

The second member 20 is preferably less rigid than the first member 10 . Specifically, it is preferable that the second member 20 has lower rigidity than the first member 10 against an external force in the vehicle front-rear direction.

[Arrangement of first member and second member]
The first member 10 and the second member 20 are arranged such that the distance between them and the arm 51 of the brake pedal 5 and the distance between them and the base 60 of the accelerator pedal 6 satisfy specific conditions. FIG. 2 is an explanatory diagram for explaining the behavior of the brake pedal retraction prevention structure 1, the brake pedal 5, and the accelerator pedal 6 of the embodiment, and schematically shows the relative arrangement of each member. Hereinafter, the distance between the second intermediate portion 23 of the second member 20 and the base portion 60 of the accelerator pedal 6 will be referred to as a first distance D1. Further, the distance between the member of the arm 51 of the brake pedal 5 facing the rear of the vehicle and the arm 51, of the free end portion 11 of the first member 10 and the one end portion 21 of the second member 20, is defined as a second distance D2. call. In this example, one end portion 21 of the free end portion 11 of the first member 10 and the one end portion 21 of the second member 20 faces the arm 51 of the brake pedal 5 . One of the features of the brake pedal retreat prevention structure 1 of the embodiment is that the first distance D1 is smaller than the second distance D2.

[Action]
When the front part of the vehicle deforms and moves toward the rear of the vehicle due to a frontal collision or the like, the brake pedal 5 and the accelerator pedal 6 move backward. The white arrows in FIG. 2(A) indicate the backward direction of the brake pedal 5 and the accelerator pedal 6 . In the brake pedal retraction prevention structure 1 of the embodiment, as shown in FIG. 2(A), the first distance D1 is smaller than the second distance D2. Therefore, the base portion 60 of the accelerator pedal 6 collides with the second intermediate portion 23 of the second member 20 before the arm 51 of the brake pedal 5 collides with the one end portion 21 of the second member 20 . When the base portion 60 of the accelerator pedal 6 collides with the second intermediate portion 23 of the second member 20, the second intermediate portion 23 deforms so as to bend rearward of the vehicle, as shown in FIG. 2(B). At this time, since there is a gap between the second intermediate portion 23 and the first intermediate portion 13 , the second intermediate portion 23 can be easily deformed rearward of the vehicle when the base portion 60 of the accelerator pedal 6 collides. When the second intermediate portion 23 deforms so as to bend toward the rear of the vehicle, the one end portion 21 and the other end portion 22 of the second member 20 deform so as to approach each other in front of the vehicle. Since one end 21 and the other end 22 of the second member 20 are connected to the free end 11 and the fixed end 12 of the first member 10 respectively, the free end 11 and the fixed end of the first member 10 12 is also deformed so as to approach in front of the vehicle. Specifically, the one end portion 21 of the second member 20 and the free end portion 11 of the first member 10 are displaced forward of the vehicle, so that the one end portion 21 and the free end portion 11 and the other end portion 22 and the fixed end portion 12 are close to each other. At this time, since the first intermediate portion 13 of the first member 10 is configured to project rearward of the vehicle, the one end portion 21 and the free end portion 11 and the other end portion 22 and the fixed end portion 12 are effectively Proximity to

The one end 21 and the free end 11 are positioned behind the vehicle of the arm 51 of the brake pedal 5 . Therefore, the one end portion 21 and the free end portion 11 are displaced forward of the vehicle, thereby pushing the arm 51 of the brake pedal 5 forward of the vehicle. The free end portion 11 of this example includes a vertical portion 112 arranged to face the side surface of the arm 51 of the brake pedal 5 in the vehicle width direction. Therefore, when the free end portion 11 is displaced forward of the vehicle, the vertical portion 112 is caught on the side surface of the arm 51 of the brake pedal 5 . When the vertical portion 112 is caught by the arm 51 of the brake pedal 5 and the free end portion 11 is displaced to approach the fixed end portion 12, the arm 51 of the brake pedal 5 rotates toward the front and the outside of the vehicle. The white arrow in FIG. 2(B) indicates the rotation direction of the arm 51 of the brake pedal 5 .

〔effect〕
The brake pedal retraction prevention structure 1 of the embodiment pushes the arm 51 of the brake pedal 5 forward of the vehicle by displacing the free end 11 of the first member 10 and the one end 21 of the second member 20 forward of the vehicle. Therefore, the brake pedal 5 can be moved forward of the vehicle more quickly. In particular, in the brake pedal retraction prevention structure 1 of the embodiment, the free end 11 of the first member 10 is hooked on the arm 51 of the brake pedal 5 and pushed forward of the vehicle, so that the brake pedal can be quickly and effectively moved. 5 can be moved to the front of the vehicle. Since the brake pedal 5 can be moved forward of the vehicle more quickly, the amount of displacement of the brake pedal 5 toward the rear of the vehicle can be effectively reduced.

The present invention is not limited to these examples, but is indicated by the scope of the claims, and is intended to include all modifications within the meaning and scope of equivalents to the scope of the claims. For example, the following modifications are possible in the above-described embodiments.

(1) The member of the arm 51 of the brake pedal 5 facing the rear of the vehicle may be the free end portion 11 of the first member 10 . One end portion 21 of the second member 20 is connected to the free end portion 11 side of the first intermediate portion 13 of the first member 10 . In this case, the distance between the free end 11 of the first member 10 and the arm 51 of the brake pedal 5 is the second distance D2.

(2) The free end portion 11 of the first member 10 may be configured with a lateral portion 111 along the first intermediate portion 13 . That is, the free end portion 11 of the first member 10 may not have the vertical portion 112 shown in FIGS. If the free end portion 11 of the first member 10 does not have the vertical portion 112 , the first intermediate portion 13 is formed between the edge of the free end portion 11 and the horizontal portion 121 and the vertical portion 122 of the fixed end portion 12 . It is located on the rear side of the vehicle from the straight line connecting the bending point.

(3) The fixed end 12 of the first member 10 may be fixed to a pillar-to-pillar member that connects the front pillars.

(4) A component of the vehicle that is parallel to the vehicle width direction of the arm 51 of the brake pedal 5 and collides with the second intermediate portion 23 of the second member 20 may be a steering shaft. This vehicle component corresponds to the vehicle component described in claim 1 . This vehicle component may also be a clutch pedal. The member fixed to the dash panel 7 is easily deformed rearward of the vehicle as the front portion of the vehicle body is deformed and moved. In addition, when the components of the vehicle are positioned on the vehicle inner side of the arm 51 of the brake pedal 5, the fixed end portion 12 of the first member 10 is fixed on the vehicle inner side. The member to which the fixed end portion 12 of the first member 10 is fixed may be a member that is difficult to deform rearward of the vehicle as the front portion of the vehicle body deforms and moves.

1 Backward Prevention Structure of Brake Pedal 10 First Member 11 Free End 111 Horizontal Section 112 Vertical Section 12 Fixed End 121 Horizontal Section 122 Vertical Section 13 First Intermediate Section 20 Second Member 21 One End 22 Others End part 23 Second intermediate part 5 Brake pedal 51 Arm 52 Pedal part 6 Accelerator pedal 60 Base part 61 Arm 62 Pedal part 7 Dash panel 8 Suspension tower 9 Bracket D1, D2 Spacing

Claims (1)

a first member that traverses the brake pedal arm and vehicle component members arranged in parallel in the vehicle width direction at the rear of the vehicle;
A second member constructed in front of the vehicle of the first member,
The first member is
a free end of the arm located behind the vehicle;
a fixed end located on the component member side in the vehicle width direction with respect to the free end;
a first intermediate portion located behind the vehicle relative to a straight line connecting the free end and the fixed end;
The second member is
one end connected to the free end side;
the other end connected to the fixed end;
a second intermediate portion spaced apart from both the first intermediate portion and the component;
The interval between the second intermediate portion and the component member is smaller than the interval between the member of the arm that faces the rear of the vehicle and the arm, out of the free end portion and the one end portion.
Brake pedal backward prevention structure.

Images