JP6029994B2 - Vehicle pedal retraction prevention structure - Google Patents

Description

  The present invention relates to a structure for preventing pedal retreat of a vehicle that prevents or suppresses the movement of pedals rearward along with the deformation movement when the front part of the vehicle body is deformed and moved rearward at the time of a vehicle collision.

  An example of a conventional vehicle pedal reverse prevention structure is disclosed in Patent Document 1. In this conventional structure, a floor brace that connects a PP member and a floor panel at the other end to a pillar-to-pillar member (hereinafter referred to as a PP member) that is a vehicle body constituting member that extends in the vehicle width direction at one end of the receding prevention member. It is fixed to each. In the event of a vehicle collision, when the suspension pedal arm comes into contact with the retreat prevention member as the vehicle body front moves backward, the pedal arm is rotated about the rotation axis, so that the pedal surface is relatively moved to the vehicle. When the pedal arm is moved rearward and further moved backward, the backward movement prevention member is moved backward.

Japanese Patent No. 4338136

  In the conventional structure, one end and the other end of the reverse preventing member are fixed to the PP member and the floor brace, respectively, which are the vehicle body constituting members, so that the reverse preventing member is moved backward by the contact of the pedal arm. For example, the structure is complicated such that the receding prevention member is composed of a complicatedly shaped wire having a plurality of bent portions, or is composed of two parts that are slidable with each other, and the number of parts increases. There is a problem that the cost increases.

  The present invention has been made in view of the above-described conventional situation, and with a lightweight and simple structure, it is possible to prevent a large load from acting on an occupant by rotating pedals at the time of a vehicle collision, and at the time of a vehicle collision. It is an object of the present invention to provide a pedal retraction preventing structure for a vehicle that can prevent the periphery of the connecting portion between the retraction preventing member and the vehicle body constituting member from being destroyed by the retreating movement of the front portion of the vehicle body.

According to the first aspect of the present invention, as the front part of the vehicle body is deformed and moved rearward in the event of a vehicle collision, the pedal arm suspended from the vehicle body via the rotation shaft moves backward. A structure for preventing the reverse of a pedal of a vehicle including a reverse prevention member that prevents or suppresses,
The anti-retraction member is fixed to a vehicle body component disposed above the pedal arm, and extends downward from the vehicle body component, and a mounting bracket extending downward from the vehicle body component. A first arm portion fixed to the first arm portion, a second arm portion that is cantilevered following the first arm portion and is bent forward of the vehicle, and the first anti-retraction member of the first arm portion . A deformation allowing portion formed at a portion located at a boundary portion between the arm portion and the second arm portion and located at a lower end of the mounting bracket, and in the first stage of the vehicle collision, the second arm portion is the pedal arm is rotated about the pivot axis as the pedal face of the pedal arm moves relative vehicle front, in the vehicle collision late, the second arm portion from said pedal arm When the load acting exceeds a predetermined value, the deformable portion, the first, it is characterized in that the second arm portion Deformable until a substantially straight line.

According to a second aspect of the present invention, in the structure for preventing the pedal from retreating according to the first aspect,
The first arm portion extends from the vehicle body component member toward the rear lower side of the vehicle,
The second arm portion includes a vertical arm portion that is bent downward from the lower end of the first arm portion toward the front of the vehicle, and a horizontal arm portion that is bent substantially horizontally from the vertical arm portion in the vehicle width direction. The lateral arm portion overlaps the pedal arm in the vehicle front-rear direction,
The deformation permission portion is characterized by allowing deformation until the first arm portion and the vertical arm portion of the second arm portion are substantially linear in a vehicle collision.

  According to the first aspect of the present invention, the reverse preventing member includes a first arm portion fixed to the vehicle body constituting member, a second arm portion provided in a cantilever state following the first arm portion, and the first arm portion. 1 and the deformation | transformation permission part formed in the boundary part of the 2nd arm.

Therefore, in the first stage of the vehicle collision, as the pedal arm moves backward, the pedal arm comes into contact with the second arm portion and rotates around its rotation axis, and the pedal surface of the pedal arm moves relatively forward of the vehicle. As a result, even when the occupant puts the leg portion on the pedal surface, the load acting on the leg portion can be reduced and reduced.

In the latter half of the vehicle collision, when the load acting on the second arm portion from the pedal arm exceeds a predetermined value, the deformation allowing portion deforms until the first and second arm portions are substantially linear. This allows the load applied to the vehicle body structural member from the pedal arm through the reverse prevention member to be reduced and relaxed, and the periphery of the connection portion between the reverse prevention member and the vehicle body structural member is immediately damaged. Can be prevented from excessively retreating.

According to the invention of claim 2, the first arm portion extends from the vehicle body constituting member toward the vehicle rear lower side, and the second arm portion is bent to the front lower side from the first arm portion; The longitudinal arm portion is further bent substantially horizontally in the vehicle width direction, and has a lateral arm portion that overlaps the pedal arm and the vehicle longitudinal direction.

Therefore, in the first stage of the vehicle collision, the pedal arm is rotated by abutting against the lateral arm portion of the second arm portion to move the pedal surface relatively forward of the vehicle. Even when the load is placed, the load acting on the leg can be reduced and reduced.

And in the latter half of the vehicle collision, when the load acting on the second arm portion from the pedal arm exceeds a predetermined value, the deformation allowing portion becomes substantially straight between the first arm and the vertical arm portion of the second arm portion. Therefore, it is possible to reduce the load acting on the vehicle body constituent member, thereby preventing the pedal arm from being excessively retracted due to damage around the connecting portion between the reverse preventing member and the vehicle body constituent member.

It is a side view of the clutch pedal reverse prevention structure of the vehicle by Example 1 of the present invention. FIG. 3 is a side view of the clutch pedal reverse preventing structure before a vehicle collision. FIG. 3 is a plan view of the clutch pedal reverse preventing structure before a vehicle collision. It is a rear view before the vehicle collision of the clutch pedal reverse prevention structure. FIG. 6 is a side view of the clutch pedal reverse preventing structure in the first stage of a vehicle collision. It is a side view of the latter stage of the vehicle collision of the clutch pedal reverse prevention structure.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

  1 to 6 are diagrams for explaining a clutch pedal reverse preventing structure for a vehicle according to Embodiment 1 of the present invention.

In the figure, reference numeral 1 denotes a front part of a vehicle compartment. The front part 1 mainly comprises left and right side panels 2 and 2 constituting the left and right side walls and a dash constituting the front wall. A panel 3, a front cowl 4 connected to the upper end of the dash panel 3 and extending in the vehicle width direction and installed between the front portions of the left and right side panels 2 and 2, and a floor constituting a bottom wall It consists of a panel 5.

Between the front pillars 2a and 2a of the side panels 2 and 2, the two pillars 2a and 2a are connected, and a steel pipe PP member (vehicle body constituting member) 6 for securing rigidity in the vehicle width direction is installed and fixed. Has been. The front cowl 4 is connected and reinforced to the PP member 6 via brackets 6a and 7b.

A steering column 8 is supported on the right side of the PP member 6 via a column bracket 6b. The steering column 8 supports a steering shaft 9, and a steering wheel 10 is fixed to the upper end portion of the steering shaft 9. A seat 11 for the driver M is disposed behind the steering wheel 10, and the seat 11 is attached to the floor panel 5.

A clutch pedal mechanism 12 is disposed on the left side of the steering column 8. The clutch pedal mechanism 12 includes a clutch bracket 13 and a pedal arm 15 supported by the bracket 13.

The clutch bracket 13 has a mechanism support portion 13a and legs 13b, 13b extending forward from the mechanism support portion 13a. The legs 13b are bolted to the dash panel 3.

A pedal surface 15a is fixed to a lower end portion of the pedal arm 15, and an upper portion thereof is pivotally supported by a mechanism support portion 13a of the clutch bracket 13 by a rotating shaft 14 so that the pedal surface 15a can swing back and forth. ing. Further, a clutch cable (not shown) is connected to a boss portion 15b formed at the upper end portion of the pedal arm 15, and the clutch mechanism is cut off when the driver M steps on the pedal surface 15a. 13d is a stepping stopper for restricting the maximum depression position of the pedal arm 15, 13c is a return stopper for restricting the return position of the pedal arm 15, and the pedal arm 15 is urged to the return position by a return spring (not shown). Yes.

A reverse preventing member 16 that characterizes the present embodiment is attached to the left side of the steering column 8 of the PP member 6 in a cantilever state. The receding prevention member 16 includes a rod body 17 formed by bending an iron round bar into a predetermined shape, and mounting brackets 18 and 18 for fixing the rod body 17 to the PP member 6 with a predetermined strength. ing.

The rod body 17 includes a first arm portion 17a fixed to the PP member 6 via the mounting brackets 18 and 18, and a distal end portion of the rod body 17 that is a free end following the first arm portion 17a. It has the 2nd arm part 17b provided, and the deformation | transformation permission part 17c formed in the boundary part of this 1st, 2nd arm part 17a, 17b.

More specifically, the first arm portion 17a includes a base portion 17d extending downward from the PP member 6 and a hypotenuse portion 17e extending obliquely downward from the base portion 17d toward the rear of the vehicle. It has a shape. The second arm portion 17b includes a vertical arm portion 17f that is bent forward from the lower end of the oblique side portion 17e of the first arm portion 17a and extends obliquely forward and downward, and further from the vertical arm portion 17f in the vehicle width direction. It has a lateral arm portion 17g that is bent in a direction away from the steering column 8 and extends substantially horizontally, and is substantially L-shaped when viewed from the front of the vehicle. The lateral arm portion 17g overlaps the pedal arm 15 in the vehicle front-rear direction.

The mounting brackets 18 and 18 have a substantially square shape similar to that of the first arm portion 17a, and are disposed so as to sandwich the first arm portion 17a from both sides in the vehicle width direction. The lower end 18c of the mounting bracket 18 is located at the boundary between the first arm portion 17a and the second arm portion 17b, the upper end portion 18a is welded and fixed to the PP member 6, and the front edge 18b is The first arm portion 17a is fixed by welding.

Since the first arm portion 17a is reinforced by the mounting brackets 18 and 18 in this way, the portion where the lower end 18c of the mounting bracket 18 is located is the above-described deformation allowing portion 17c, and the second arm portion 17b When a backward load equal to or greater than a predetermined value is applied, the second arm portion 17b is deformed backward with the deformation allowing portion 17c as a center.

According to the structure of this embodiment, during normal traveling, as shown in FIGS. 1 and 2, the pedal arm 15 is urged to the clutch engagement position and is in contact with the return stopper 13c. A predetermined gap is formed between 17 g.

When the dash panel 3 is crushed and moved rearward due to a frontal collision of the vehicle, the clutch pedal mechanism 12 also moves rearward along with the rearward movement. In this case, in the first stage of the vehicle collision, the pedal arm 15 comes into contact with the lateral side portion 17g of the second arm portion 17b and is pushed relatively to the lateral side portion 17g so as to center on the rotating shaft 14. 5 is rotated clockwise in the direction of arrow A, so that the pedal surface 15a moves relatively forward of the vehicle. As the clutch pedal mechanism 12 moves rearward, as indicated by a solid line in FIG. 5, the pedal arm 15 comes into contact with the stopper 13d and the rotation stops.

In the latter half of the vehicle collision, as the clutch pedal mechanism 12 further moves backward, the deformation allowing portion 17c causes the inclined side portion 17e of the first arm portion 17a and the vertical side portion 17f of the second arm portion 17b to move. Deformation up to a substantially straight line is allowed (see arrow B in FIG. 6).

As described above, in this embodiment, in the first stage of the vehicle collision, the pedal arm 15 is rotated by contacting the lateral arm portion 17g of the second arm portion 17b, so that the pedal surface 15a is relatively moved forward of the vehicle. Even when the driver M puts the leg portion on the pedal surface 15a, the load acting on the leg portion can be reduced and reduced.

In the latter half of the vehicle collision, when the load acting on the second arm portion 17b from the pedal arm 15 exceeds a predetermined value, the deformation allowing portion 17c is moved to the oblique side portion 17e and the second arm portion of the first arm portion 17a. Since the deformation until the vertical arm portion 17f of the 17b is substantially linear is allowed, the load acting on the PP member 6 is reduced thereby, and the periphery of the connection portion between the receding prevention member 16 and the PP member 6 is damaged. The pedal arm 15 can be prevented from retreating excessively when the damage occurs.

The retraction preventing member 16 of the present embodiment realizes the above-described effects with a very simple structure in which the rod body 17 is provided in a cantilever state via the mounting bracket 18 and is a cantilever structure. In addition, a vehicle body constituent member for fixing the distal end portion of the retreat preventing member 16 is unnecessary, and the weight and cost can be reduced.

Further, the first arm portion 17a is reinforced by the mounting bracket 18, and the deformation allowing portion 17c is realized by positioning the lower end 18c of the mounting bracket 18 at the boundary between the first arm portion 17a and the second arm portion 17b. From this point, the structure is simple.

  In the present invention, as shown by a two-dot chain line in FIG. 2, an extension 18 d can be provided at the lower end 18 c of the mounting bracket 18. In this case, the extension 18d can prevent the second arm portion 17b from being deformed beyond the position that forms a straight line with the first arm portion 17a in the latter stage of the collision. Can be prevented from excessively retreating.

  In the above embodiment, the structure for preventing the reverse movement of the clutch pedal has been described. However, the present invention can also be applied to a brake pedal, a stepping type parking brake, and a hanging type accelerator pedal.

3 Dash panel (front of vehicle body)
6 PP member (body component)
14 Rotating shaft 15 Pedal arm 15a Pedal surface 16 Retraction preventing member 17a First arm portion 17b Second arm portion 17c Deformation allowing portion 17f Vertical arm portion 17g Horizontal arm portion

Claims (2)

Preventing or suppressing the backward movement of the pedal arm suspended pivotably on the vehicle body via the rotation shaft as the front part of the vehicle body is deformed and moved rearward in the event of a vehicle collision. A vehicle pedal reverse prevention structure including a member,
The retraction preventing member is fixed to a vehicle body constituent member disposed above the pedal arm, and a mounting bracket extending downward from the vehicle body constituent member;
A first arm portion extending vertically along the mounting bracket and fixed to the mounting bracket ;
A second arm portion that is cantilevered following the first arm portion and is bent forward of the vehicle ;
A deformation-permitting portion formed at a portion of the anti-retraction member located at a boundary between the first arm portion and the second arm portion and located at a lower end of the mounting bracket ;
In the first stage of the vehicle collision, the second arm portion rotates the pedal arm around the rotation shaft so that the pedal surface of the pedal arm moves relatively forward of the vehicle,
In a later stage of the vehicle collision, when the load acting on the second arm portion from the pedal arm exceeds a predetermined value, the deformation allowing portion deforms until the first and second arm portions are substantially linear. A structure for preventing a backward movement of a pedal of a vehicle, wherein the pedal is allowed. The pedal retreat prevention structure for a vehicle according to claim 1,
The first arm portion extends from the vehicle body component member toward the rear lower side of the vehicle,
The second arm portion includes a vertical arm portion that is bent downward from the lower end of the first arm portion toward the front of the vehicle, and a horizontal arm portion that is bent substantially horizontally from the vertical arm portion in the vehicle width direction. The lateral arm portion overlaps the pedal arm in the vehicle front-rear direction,
The pedal deformation prevention structure for a vehicle, wherein the deformation permitting portion allows deformation until the first arm portion and the vertical arm portion of the second arm portion are substantially linear in a vehicle collision.

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