JP2009193369A - Pedal support structure of automobile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pedal support structure for displacing a pedal lever downward when a vehicle collides with a preceding vehicle. <P>SOLUTION: The pedal support structure includes brackets 10, 11 fixed on a dashboard lower part 2 located in front of a brake pedal 1, a mounting member 12 fixed on a dashboard upper part 3 located above the brake pedal 1, and a connection member 13 for connecting the brackets 10, 11 to the mounting member 12. The front end part of the connection member 13 is rotatably coupled with the brackets 10, 11, while the rear end part thereof is rotatably coupled with the mounting member 12. A spacer 14 for regulating the displacement of the brake pedal 1 to the rear side of the vehicle is fitted to the connection member 13 so that when the brackets 10, 11 are displaced to the rear side of the vehicle due to the front collision of the vehicle. The connection member 13 is displaced around a bolt 24 to the lower rear side of the vehicle to displace the brake pedal 1 to the lower part of the vehicle while regulating the displacement of the brake pedal 1 to the rear side of the vehicle. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an automobile pedal support structure.

As a pedal support structure for supporting a vehicle pedal on a vehicle body, for example, there is one disclosed in Patent Document 1.
JP 10-310036 A

In Patent Document 1, the front end of the pedal bracket that supports the brake pedal is fixed to a dashboard lower that partitions the engine compartment and the vehicle interior, and the pedal bracket is arranged to extend rearward and upward from the dashboard lower, There is disclosed a pedal support structure in which a rear end of a pedal bracket is brought into contact with a lower end of a dashboard upper arranged so as to extend substantially horizontally from an upper end of the dashboard lower.
In this pedal support structure, the upper bracket having an inclined surface that slopes rearwardly is provided at the lower end of the dashboard upper, and the rear end of the pedal bracket is located on the front side of the vehicle with respect to the inclined surface. Yes.
As a result, even if the dashboard lower moves backward toward the rear of the vehicle during a frontal collision of the vehicle, the rear end of the pedal bracket is pushed downward along the inclined surface, so that the brake pedal is not the rear of the vehicle. , It moves to the lower back.

However, in the pedal support structure disclosed in Patent Document 1, since the rear end of the pedal bracket is slid on the inclined surface of the upper bracket, the pedal bracket has a downward direction along the inclined surface of the rear end of the pedal bracket. In order to ensure the movement, it is necessary to give the bracket having the inclined surface sufficient strength so as not to be deformed by the stress applied from the pedal bracket at the time of a vehicle frontal collision.
Therefore, in order to ensure sufficient strength, there is a problem that the shape of the bracket is large and complicated, and the manufacturing cost is increased.

  Therefore, an object of the present invention is to provide a pedal support structure that can reduce the amount of rearward displacement of the pedal lever at the time of a forward collision of a vehicle with a simple structure.

  The present invention supports a pedal lever and is fixed to a first vehicle body structural member in front of the pedal lever, a mounting member fixed to a second vehicle body structural member located above the pedal lever, In a pedal support structure having a connecting member for connecting a bracket and a mounting member, the bracket is disposed on one side in the width direction of the vehicle, and is disposed obliquely so as to gradually extend upward from the front to the rear of the vehicle The first bracket and the second bracket disposed on the other side are configured to rotate the front end portion of the connecting member relative to the first bracket and the second bracket between the first bracket and the second bracket. When the bracket is displaced rearward of the vehicle when the rear end of the connection member is rotatably connected to the mounting member, the connection member A structure provided with a restricting member that enables rotation about the connecting portion with the attachment member as a center of rotation, and restricts displacement of the brake pedal toward the rear of the vehicle by contacting the brake pedal when the bracket is displaced toward the rear of the vehicle; did.

  Here, it was set as the structure by which the rib was formed in the bracket toward the connection part with a connection member.

  The restricting member is disposed so as to penetrate from the first bracket to the second bracket, and a bolt that rotatably connects the front end portion of the connecting member to the first bracket and the second bracket. And a spacer into which the bolt is inserted.

  Furthermore, the front end portion of the connection member is provided with a notch and is bifurcated.

According to the present invention, when the bracket is displaced rearward of the vehicle, the connecting member rotates around the connecting portion with the mounting member as a rotation center, and the bracket is largely displaced downward in the rear of the vehicle. At this time, since the restricting member abuts on the brake pedal and restricts the displacement of the brake pedal to the vehicle rear side, even if the first vehicle body structural member is displaced excessively rearward, the brake pedal supported by the bracket However, the amount displaced toward the rear of the vehicle can be suppressed.
Therefore, it becomes a pedal support structure with a simple structure that can reduce the rear displacement amount of the pedal lever at the time of a frontal collision of the vehicle.

Hereinafter, an example of a pedal support structure for an automobile according to the present invention will be described by taking a brake pedal support structure as an example.
FIG. 1 is a side view of the brake pedal support structure according to the embodiment, FIG. 2 is a view of the brake pedal support structure shown in FIG. 1 as viewed from the passenger compartment side, and FIG. FIG. 3B is a partially enlarged view of a part of the bracket of the brake pedal support structure shown in FIG. 1 viewed from the vehicle lower side. .

As shown in FIGS. 1 and 2, the brake pedal 1 is rotatably supported between the brackets 10 and 11, and is supported by the vehicle body structural member via the brackets 10 and 11.
A mounting hole for mounting the push rod 5 is provided at a position below the brackets 10 and 11 of the brake pedal 1. The push rod 5 is pushed in the axial direction when the brake pedal is depressed, and increases the pressure of brake oil in a master cylinder (not shown) to operate the brake.

The brackets 10 and 11 have shapes that are symmetrical with respect to the brake pedal 1. Therefore, the following description of the bracket is made on the bracket 11.
In the pedal support structure according to the embodiment, the end portion of the bracket 11 on the vehicle front side is bent toward the outside in the width direction of the vehicle to be an attachment portion 11a, and the bracket 11 is inserted through the bolt of the attachment portion 11a. It is fixed to a dashboard lower 2 that divides the engine compartment and the vehicle compartment in front of the brake pedal 1 through a bolt (not shown) inserted through the hole 11b.

  The bracket 11 is provided so as to extend from the vehicle interior side surface 2a of the dashboard lower 2 to the vehicle rear side, and a connection member 13 is rotatably connected to the vehicle rear side of the bracket 11. .

A rib 11c extending in the front-rear direction of the vehicle is formed in a range from the vehicle front side of the bracket 11 to the vicinity of the connecting portion with the connection member 13.
A bolt hole (not shown) is formed at a position above the vehicle 11 relative to the rib 11c of the bracket 11, and a bolt 20 for rotatably supporting the brake pedal 1 on the bracket 11 is inserted into the bolt hole. .

  As shown in FIG. 2, an extension portion 11 d extending in the direction of the brake pedal 1 is formed at a lower position on the vehicle rear side than the connection portion of the bracket 11 with the connection member 13. A position detection sensor 4 that detects the position of the brake pedal 1 is provided in the exit portion 11d.

As shown in FIG. 3, a bolt hole 12 a is formed in the attachment member 12, and the attachment member 12 is formed from an upper end (not shown) of the dashboard lower 2 by a bolt (not shown) inserted through the bolt hole 12 a. It is fixed to the lower surface 3a of the dashboard upper 3 disposed so as to extend to the vehicle rear side.
Wall portions 12b, 12b, and 12c extending to the vehicle lower side are provided on both side edges of the mounting member 12 in the vehicle width direction and end edges on the vehicle rear side, and bolt holes (not shown) on the wall portion 12b are provided. The connecting member 13 is rotatably connected to the mounting member 12 by the inserted bolt 24 and nut 25.

Wall portions 13a, 13a extending to the vehicle lower side are provided on both side edges of the connecting member 13 in the vehicle width direction, and are not shown on the vehicle front side and the vehicle rear side of the wall portions 13a, 13a. Bolt holes are formed.
The vehicle front side of the connecting member 13 is located between the bracket 11 disposed on one side in the vehicle width direction and the bracket 10 disposed on the other side. The vehicle front side of the connection member 13 includes a bracket 11, the connection member 13, a bolt 22 penetrating each bolt hole of each bracket 10, 11 in the vehicle width direction, and a nut 23 screwed to the tip thereof. The brackets 10 and 11 are rotatably connected. The bolt 22 is disposed from the bracket 10 to the bracket 11 and passes through the brackets 10 and 11.

Further, the vehicle rear side of the connection member 13 is screwed into a bolt 24 passing through each bolt hole of the attachment member 12 and the connection member 13 in the width direction of the vehicle, and one end of the connection member 13 in the width direction of the vehicle. The nut 25 is rotatably connected to the mounting member 12.
Here, the connecting member 13 is disposed obliquely so as to gradually extend upward as it goes from the front to the rear of the vehicle.

A cylindrical spacer 14 is provided between the wall portions 13 a and 13 a on the vehicle front side of the connecting member 13, and the above-described bolt 22 is inserted into the spacer 14.
The spacer 14 ensures the strength of the connecting member 13 in the vehicle width direction and ensures the connection of the connecting member 13 to the brackets 10 and 11 by the bolts 22. The spacer 14 abuts against the brake pedal 1 when the brake pedal 1 is displaced toward the vehicle rear side due to, for example, a frontal collision of the vehicle, and restricts the displacement of the brake pedal 1 toward the vehicle rear side. This is because the displacement range of the brake pedal 1 is restricted to prevent contact between the brake pedal 1 and the occupant.

A substantially U-shaped cutout 13b is formed on the vehicle front side of the connection member 13, and the vehicle front side of the connection member 13 is bifurcated in the vehicle width direction.
Even if the brake pedal 1 is displaced to the vehicle rear side due to, for example, a frontal collision of the vehicle, the notch 13b is located at the upper end of the brake pedal 1 in the notch 13b on the vehicle rear side with respect to the spacer 14. The connecting member 13 and the brake pedal 1 are provided so as not to interfere with each other. This is because when the connecting member 13 and the brake pedal 1 interfere with each other, rotational displacement about the bolt 22 of the bracket 11 is hindered.

  Two opening 13c for tool insertion is formed in the vehicle rear side rather than the notch 13b of the connection member 13, and the bolt hole 12a of the attachment member 12 is exposed in this opening 13c. The size of the opening 13c is set to a size that avoids interference with a bolt and a tool (not shown) inserted through the bolt hole 12a.

Next, the movement of the bracket 11 in the brake pedal support structure when the dashboard lower 2 is displaced to the vehicle rear side due to a frontal collision of the vehicle will be described.
4 and 5 are diagrams for explaining the movement of the bracket in the brake pedal support structure. 6 is a view in which the bracket 11 is not shown in the brake pedal support structure shown in FIG.

  The dashboard lower 2 is displaced to the vehicle rear side by the force F acting at the time of the frontal collision of the vehicle, and the position P of the bracket 11 on the dashboard lower 2 is X1 from the position X0 shown in FIG. When displaced toward the position shown, a force toward the vehicle rear side acts on the connection member 13.

Here, in the side view, the connecting member 13 is disposed obliquely so as to gradually extend upward from the front of the vehicle to the rear, and the vehicle front side and the vehicle rear side of the connecting member 13 are respectively bracket 11. And the attachment member 12 are rotatably connected.
Therefore, the connecting member 13 rotates around the bolt 24 that is a connecting portion with the mounting member 12, and the bracket 11 side (bolt 22 side) of the connecting member 13 is in the direction indicated by the arrow in FIG. That is, it is displaced to the vehicle rear side.

Then, with the displacement of the connecting member 13 toward the vehicle rear side, the bracket 11 rotates around the bolt 22 that is a connecting portion with the connecting member 13 as the center of rotation, while the vehicle rear indicated by an arrow in FIG. Displaces downward.
Therefore, the brake pedal 1 supported by the bracket 11 not only moves to the vehicle rear side, but also displaces toward the vehicle lower side.

The position P on the dashboard lower 2 is further displaced to the vehicle rear side, and the positions indicated by reference numerals X1 and X2 from the position X0 shown in FIG. 4A (see FIGS. 4B and 4C). 5 to the position of X3 shown in FIG. 5, the rearward side of the vehicle is accompanied by the displacement of the connecting member 13 to the vehicle rear side due to the rotation about the bolt 24 and the rotation of the bracket 11 about the bolt 22. Displacement to progresses.
As a result, as shown in FIG. 5, even if the dashboard lower 2 retreats greatly toward the rear side of the vehicle, the brake pedal 1 is positioned at the position of the brake pedal 1 before the dashboard lower 2 retreats (two points in the figure). (Represented by a chain line), the vehicle is displaced downward, and the displacement on the vehicle rear side is reduced.

Here, the bolt 22 that connects the front end portion of the connecting member 13 to the brackets 10 and 11 is inserted through the spacer 14 (see FIG. 3B), and as shown in FIG. When displaced rearward, the brake pedal 1 comes into contact with the spacer 14 and further displacement of the brake pedal 1 toward the vehicle rear side is restricted.
Therefore, even if the brake pedal 1 is pushed up by the push rod 5 due to, for example, a frontal collision of the vehicle and the brake pedal 1 is displaced to the rear side of the vehicle, the displacement of the brake pedal 1 to the rear side of the vehicle is restricted by the spacer 14. Thus, contact between the brake pedal 1 and the occupant is prevented.

As described above, in this embodiment, the brake pedal 1 is supported, the bracket is fixed to the dashboard lower 2 in front of the brake pedal 1, and the dashboard upper 3 is positioned above the brake pedal 1. In a pedal support structure that includes a mounting member 12 and a connecting member 13 that is obliquely disposed so as to gradually extend upward from the front of the vehicle to the rear, and connects the bracket and the mounting member 12, The bracket 10 is arranged on one side in the direction and the bracket 11 is arranged on the other side, and the front end portion of the connecting member 13 is rotatable between the brackets 10 and 11 with respect to the brackets 10 and 11. In addition to connecting, the rear end portion is rotatably connected to the mounting member 12 so that the brackets 10 and 11 are located on the vehicle rear side. When the brackets 10 and 11 are displaced, the rotation of the connecting member 13 around the bolt 24 which is a connecting portion with the mounting member 12 is possible. The connection member 13 is provided with a spacer 14 that restricts the displacement of the vehicle 1 toward the vehicle rear side.
As a result, when the dashboard lower 2 is displaced toward the rear side of the vehicle at the time of a frontal collision of the vehicle, the displacement toward the rear side of the vehicle due to the rotation of the connection member 13 around the bolt 24 and the rotation around the bolt 22 of the bracket 11 are performed. Displacement toward the rear and lower side of the vehicle is accompanied. At this time, the spacer 14 abuts on the brake pedal 1 to restrict the displacement of the brake pedal 1 toward the vehicle rear side.
As a result, the brake pedal 1 supported by the bracket 11 is displaced toward the vehicle lower side rather than the vehicle rear side, so that the brake pedal (pedal lever) is displaced downward during a forward collision of the vehicle with a simple structure. It becomes the pedal support structure which realizes that.

Furthermore, the rib 11c is formed in the bracket 11 toward the connecting portion with the connection member 13.
Thereby, since the rigidity of the part in which the rib 11c of the bracket 11 is formed becomes high, the displacement of the bracket 11 to the vehicle rear lower side is facilitated while preventing the bracket 11 from buckling.

Further, the front end portion of the connecting member 13 is rotatably connected to the brackets 10 and 11 by bolts 22 penetrating the bracket 11, the connecting member 13 and the bracket 10 in the vehicle width direction. It was set as the structure which is a cylindrical member in which the volt | bolt 22 is penetrated.
Thereby, even when the brake pedal 1 is displaced excessively rearward, the displacement of the brake pedal 1 to the vehicle rear side is restricted by the sufficient strength of the spacer 14 and the bolt 22, so that the brake pedal 1 and the occupant Prevent contact.

Further, the front end portion of the connecting member 13 is provided with a notch 13b and bifurcated in the vehicle width direction.
Thereby, even if the brake pedal 1 is displaced to the vehicle rear side due to, for example, a frontal collision of the vehicle, the upper end side of the brake pedal 1 is located in the notch 13b and does not interfere with the connecting member 13. Therefore, the rotation of the bracket 11 around the bolt 22 is reliably performed and the brake pedal 1 is surely displaced downward and rearward of the vehicle, so that contact between the brake pedal 1 and the occupant is prevented. it can.

  Further, the connecting member 13 is located between the bracket 10 located on one side in the vehicle width direction and the bracket 11 located on the other side, and has a shape that secures the thickness (width) in the vehicle width direction. Therefore, when stress acts on the connection member 13 due to a frontal collision of the vehicle, the connection member 13 is preferably prevented from being bent by the stress. Therefore, the displacement of the connecting member 13 toward the rear side of the vehicle due to the rotation around the bolt 24 and the displacement of the bracket 11 toward the lower side of the vehicle accompanying the rotation around the bolt 22 are hindered by the bending of the connecting member 13. It will not be done.

  In the above embodiment, the case of the brake pedal of the automobile is taken as an example, and the pedal support structure of the automobile according to the present invention has been described, but the pedal support structure of the automobile according to the present invention is not limited to the brake pedal of the automobile, The present invention can also be suitably applied to an accelerator pedal, a clutch pedal, and the like.

  In the said Example, although the 1st bracket and the 2nd bracket were comprised separately, you may comprise integrally.

It is a side view of the pedal support structure of the motor vehicle concerning an Example. It is the figure which looked at the pedal support structure of the automobile concerning an example from the vehicles back. It is a figure explaining the pedal support structure of the automobile concerning an example. It is a figure explaining the displacement of the bracket of the pedal support structure of the motor vehicle concerning an Example. It is a figure explaining the displacement of the bracket of the pedal support structure of the motor vehicle concerning an Example. It is a figure explaining the displacement of the bracket of the pedal support structure of the motor vehicle concerning an Example.

Explanation of symbols

1 Brake pedal (pedal lever)
2 Dashboard lower (first body structural member)
3 Dashboard upper (second body structure member)
4 Position detection sensor 10, 11 Bracket 12 Mounting member 13 Connection member 14 Spacer (regulating member)

Claims (4)

A bracket that supports the pedal lever and is fixed to the first vehicle body structural member in front of the pedal lever;
An attachment member fixed to a second vehicle body structural member located above the pedal lever;
In the pedal support structure having a connecting member that is disposed obliquely so as to gradually extend upward as it goes from the front to the rear of the vehicle, and that connects the bracket and the mounting member,
The bracket includes a first bracket disposed on one side in the width direction of the vehicle and a second bracket disposed on the other side,
The front end portion of the connection member is rotatably connected to the first bracket and the second bracket between the first bracket and the second bracket, and the rear end portion of the connection member is When the bracket is displaced rearwardly with respect to the mounting member so as to be rotatable with respect to the mounting member, the connection member and the mounting member can be rotated around the connecting portion as a rotation center.
A pedal support structure for an automobile, comprising a regulating member that abuts against the brake pedal and regulates displacement of the brake pedal toward the vehicle rear side when the bracket is displaced toward the vehicle rear side.   2. The pedal support structure for an automobile according to claim 1, wherein a rib is formed on the bracket toward a connecting portion with the connection member.   The restricting member is disposed so as to penetrate from the first bracket to the second bracket, and a bolt that rotatably connects a front end portion of the connecting member to the first bracket and the second bracket; The pedal support structure for an automobile according to claim 1 or 2, comprising a spacer into which the bolt is inserted.   The pedal support structure for an automobile according to any one of claims 1 to 3, wherein the front end portion of the connection member is provided with a notch and is bifurcated.

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