JP2000163147A - Structure for pedal bracket - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the structure of a pedal bracket for preventing the movement of a pedal step face to the rear side of a vehicle when an outer force which is a prescribed value or more acts from the front part of the vehicle. SOLUTION: A pedal bracket 1 is constituted so that the front part can be mounted on the inside of a vehicle compartment 4 of a dash panel 5, and the upper part can be mounted on a column hanger 6, and the upper edge part of a brake pedal 2 can be supported so as to be freely rotatable. In this case, the pedal bracket 1 is constituted of an outer bracket 9 and an inner bracket 10, and the front part of the outer bracket 9 is mounted on the dash panel 5, and the rear part of the inner bracket 10 by which the upper edge part of a brake pedal 2 is pivotally supported is mounted on the column hanger 6, and the inner bracket 10 is connected with the outer bracket 9 at a position biased to the column hanger 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a pedal bracket for supporting a brake pedal of a vehicle.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 4, a suspension type brake pedal 51 for operating a brake by the occupant's depressing force is disposed at a position in front of a driver's seat in a vehicle cabin. The brake pedal 51 includes a pedal step portion 52 which is stepped on when a driver applies a brake, and a pedal arm portion 53 having the pedal step portion 52 at a lower end and extending in the up-down direction. By tightening the upper end of the pedal arm portion 53 with a nut or the like, the pedal arm portion 53 is rotatably supported by a pedal bracket 54 having a substantially U-shaped cross section and an opening portion disposed downward. The front portion of the pedal bracket 54 is attached to the inside of the vehicle compartment 56 of a dash panel 57 that separates the engine compartment 55 and the vehicle compartment 56. The upper rear portion of the pedal bracket 54 is attached via a column hanger 59 to a steering support member 58 disposed along the vehicle width direction. further,
A brake pedal 51 is provided in front of the dash panel 57.
Booster 6 that increases the occupant's pedaling force applied to the vehicle
The brake pedal 51 and the brake booster 60 are connected to each other via a push rod 61.

When an external force equal to or more than a predetermined value acts on a vehicle equipped with such a brake pedal 51 from the front of the vehicle, as shown by a solid line in FIG. In some cases, the vehicle was pushed by the dash panel 57 and jumped into the vehicle interior 56. Therefore, various measures have conventionally been taken to prevent this, and examples thereof include structures disclosed in JP-A-10-16733 and JP-A-10-59146. In the structure disclosed in Japanese Patent Application Laid-Open No. H10-16733, when an external force equal to or more than a predetermined value acts from the front of the vehicle, the pressing member installed on the dash panel moves to the rear of the vehicle together with the dash panel, and the upper end of the brake pedal By pressing the rear part in the same direction, the brake pedal (pedal pad) is rotated to the front side of the vehicle.
When an external force is applied from the front of the vehicle, the brake pedal is prevented from protruding into the vehicle interior. On the other hand, JP-A-10-
In the structure disclosed in Japanese Patent No. 59146, when an external force equal to or more than a predetermined value acts from the front of the vehicle, a dash panel (brake booster) moves to the rear of the vehicle, and at that time, is located between the brake pedal and the brake booster. By bending the push rod, the brake pedal is prevented from protruding into the cabin.

[0004]

However, of the above-mentioned conventional structures, in the former case, the brake pedal is actuated to increase the amount of depression, so that the vehicle with the brake pedal must be larger than the stroke of the push rod. Projection to the indoor side cannot be prevented. Further, in the latter case, it is not possible to prevent the brake pedal from projecting toward the vehicle interior beyond the buckling limit of the push rod. Therefore, in either case, the conventional structure cannot sufficiently prevent the brake pedal from protruding into the cabin, and as shown in FIG. 5, when an external force equal to or more than a predetermined value acts from the front of the vehicle, There is a possibility that the brake pedal 51 is pushed by the brake booster 60 and the dash panel 57 and jumps up inside the vehicle compartment 56.

The present invention has been made in view of the above circumstances, and an object of the present invention is to prevent a pedal tread from moving rearward of a vehicle when an external force greater than a predetermined value acts from the front of the vehicle. It is an object of the present invention to provide a structure of a pedal bracket capable of performing the following.

[0006]

In order to solve the problems of the prior art, according to the present invention, a dash panel has a front portion attached to a vehicle interior side and a column hanger has an upper portion attached to a pedal. In the structure of a pedal bracket that rotatably supports an upper end of an arm, the pedal bracket includes an outer bracket and an inner bracket, and a front portion of the outer bracket is attached to the dash panel, and an upper end of the pedal arm. Is attached to the column hanger, and the inner bracket is rotatably connected to the outer bracket at a position near the column hanger.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on illustrated embodiments.

1 to 3 show an embodiment of the structure of the pedal bracket according to the present invention. In the figure, reference numeral 1 denotes a pedal bracket which is disposed at a lower front part of a driver's seat of a four-wheeled vehicle and rotatably supports an upper end of a brake pedal (pedal arm) 2. A dash panel 5 is mounted on a column hanger 6 inside a dash panel 5 erected at a position in front of the brake pedal 2 to separate the engine room 3 from the vehicle room 4. Therefore, the pedal bracket 1 is attached to the dash panel 5 and the column hanger 6 and is arranged so as to rise slightly diagonally upward toward the rear of the vehicle.
On the other hand, the brake pedal 2 includes a pedal step portion 7 that the driver steps on when the driver operates the brake, and a pedal arm portion 8 that has the pedal step portion 7 at the lower end and extends in the vertical direction, as in the related art. When the pedal step portion 7 is depressed toward the dash panel 5 on the front side of the vehicle, the pedal arm portion 8 rotates about the upper end portion of the pedal arm portion 8 as a fulcrum, and returns to the initial position by the urging force of a return spring (not shown). It has become.

As shown in FIGS. 1 and 2, the pedal bracket 1 includes an outer bracket 9 and an inner bracket 1 in which most of the inner bracket is housed and arranged.
0 constitutes a double structure. The outer bracket 9 and the inner bracket 10 are arranged along the front-rear direction of the vehicle. The front part of the outer bracket 9 is attached to the dash panel 5, and the upper rear part of the inner bracket 10 is attached to the column hanger 6. I have.

For this reason, the outer bracket 9 is formed so that its front-rear length and width are larger than those of the inner bracket 10, and its intermediate portion 11 is provided to arrange the upper end of the pedal arm portion 8 of the brake pedal 2. The opening is formed in a downward U-shaped cross section. And the intermediate part 11
Lock holes 12 are formed in lower portions of the left and right side surfaces 11a for engaging with positioning claws described later. At the front ends of the left and right side surfaces 11a of the intermediate portion 11, mounting pieces 13 projecting outward at substantially right angles are integrally formed. These mounting pieces 13 are parts that are fastened and fixed to the dash panel 5.
A pair of upper and lower bolt holes 15 into which the holes 4 are inserted are formed. Further, at the rear ends of the left and right side surfaces 11a of the intermediate portion 11, support pieces 16 which are slightly narrower than the width of the intermediate portion 11 and extend rearward of the vehicle are integrally formed. They are arranged facing each other with a certain interval.
Moreover, a shaft hole 18 for inserting a pivot shaft 17 for supporting the inner bracket 10 is formed in the support piece 16, and the screw portion 1 that is screwed to the head 17 a and the nut 19 is formed in the pivot shaft 17.
7b is provided.

The inner bracket 10 includes a bracket body 20 having an opening formed in a substantially U-shaped plane with an opening facing forward to support an upper end of the pedal arm 8 of the brake pedal 2. And an inclined piece 21 bent so as to rise slightly obliquely upward from the rear upper end toward the rear of the vehicle. A bolt 23 and a nut (not shown) are fastened to the front side of the left and right side surfaces 20a of the bracket body 20 via a sleeve 22 and the like which are erected, so that the pedal arm portion 8 is formed.
Is pivotally supported at its upper end. Also, the bracket body 20
At the lower portion on the front side of the left and right side surfaces 20a, projections 24 for positioning and fixing are respectively protruded, and the projections 24 are configured to be inserted into the engagement holes 12 of the outer bracket 9 and engaged therewith. ing. Furthermore, the bracket body 20
An insertion hole 25 is formed in the upper rear portion of the left and right side surfaces 20a in correspondence with the shaft hole 18 of the outer bracket 9,
The pivot shaft 17 is inserted into the insertion hole 25. The inclined piece 21 is a portion which is fixedly fastened to a lower portion of the column hanger 6, and a fastening bolt 2
6 is provided with a mounting hole 27 for inserting the same.

Therefore, the outer bracket 9 and the inner bracket 10 are connected to the shaft hole 18 and the insertion hole 2.
By screwing the pivot shaft 17 inserted through the nut 5 with the nut 19, the pivot shaft 17 is rotatably connected to each other at a position near the column hanger 6. Moreover, in the structure of the pedal bracket 1 of the present embodiment, when an external force is applied from the front of the vehicle, it is necessary to rotate the inner bracket 10 in the counterclockwise direction (the direction of the dashed arrow in FIG. 1). The connection position of the brackets 9 and 10 is more than a straight line connecting the pivot support position of the brake pedal 2 (the position of the bolt 23) and the mounting position of the inner bracket 10 to the column hanger 6 (the position of the mounting hole 27) in a side view. It is located above. The column hanger 6 is attached to the steering support member 28 in a state where the column hanger 6 is arranged in a forwardly downward slope. Both ends of the steering support member 28 are fixed to the left and right sides of the vehicle body, respectively. It is arranged. The axis of the steering support member 28 is a distance L from the dash panel 5 to the inside of the cabin 4.
1 is provided.

On the other hand, in the engine room 3 located in front of the dash panel 5, a brake booster 29 for increasing the driver's pedaling force applied to the brake pedal 2 is provided.
And a master cylinder 30 for converting the pressure increased by the brake booster 29 into a hydraulic pressure.
For this reason, a push rod 31 penetrating through the dash panel 5 protrudes from the rear surface of the brake booster 29,
The brake pedal 2 and the brake booster 29 are connected to each other via a push rod 31. One end of the push rod 31 is provided with a clevis 32 and a pin 33 having a U-shape in plan view to form a pedal arm 8 of the brake pedal 2.
Is mounted to be rotatable. The other end of the push rod 31 is rotatably attached to the brake booster 29 via a ball joint (not shown). In addition, the clevis-side end of the push rod 31 is disposed below the ball joint-side end so that the brake pedal 2 moves downward when receiving an external force from the front of the vehicle. The length of the push rod 31 is the dimension L2.
The dimension L2 corresponds to the distance from the dash panel 5 to the axis of the clevis 32.

When an external force equal to or more than a predetermined value acts on a vehicle to which the structure of the pedal bracket 1 according to the embodiment of the present invention is applied from the front of the vehicle, the external force is applied to the vehicle forward of the brake pedal 2. Since the dash panel 5 is input to the dash panel 5 via the master cylinder 30 and the brake booster 29, the brake booster 29 and the dash panel 5 are pushed into the vehicle interior 4. Accordingly, the pedal bracket 1 moves to the rear of the vehicle, but the front part of the outer bracket 9 is fixed to the dash panel 5 and the upper rear part of the inner bracket 10 is fixed to the column hanger 6. As shown, the outer bracket 9 is displaced and the distance L1 to the steering support member 28 becomes shorter as the distance L1 ', while the inner bracket 10 rotates counterclockwise about the pivot shaft 17. At this time, if an external force equal to or more than a predetermined value is applied from the front of the vehicle, the claw 24 is deformed and detaches from the locking hole 12, so that the rotation of the inner bracket 10 is not hindered.

Since the brake pedal 2 is fixed to the inner bracket 10 by the bolt 23, it moves downward in accordance with the movement of the inner bracket 10. On the other hand, since the length of the push rod 31 of the brake booster 29 is the same as L2, the position of the pedal depression portion 7 of the brake pedal 2 does not move backward of the vehicle. However, one end of the push rod 31 is a clevis 3
3 and the other end is attached to the brake booster 29 via a ball joint (not shown), so that the brake pedal 2 (clevis 32) as shown by a solid line in FIG. Moves downward (rotates clockwise) around a ball joint (not shown).

In the structure according to the embodiment of the present invention, the outer bracket 9 attached to the dash panel 5 and the inner bracket 10 attached to the column hanger 6 form the pedal bracket 1 as a double structure. And the inner bracket 10 are rotatably connected via the pivot 17 so that even when an external force of a predetermined value or more is applied from the front of the vehicle, the brake booster 29 and the dash panel 5 can be moved to the rear of the vehicle. It is possible to absorb the movement, and it is possible to prevent the brake pedal 2 from jumping inside the vehicle compartment 4. Moreover,
In the structure of the present embodiment, the connection position of the outer bracket 9 and the inner bracket 10 constituting the pedal bracket 1 is a position close to the column hanger 6, and the axial support position of the brake pedal 2 and the position of the inner bracket 10 in a side view. The push rod 31 is disposed above a straight line connecting to the mounting position on the column hanger 6, and one end of the push rod 31 is rotatable with the clevis 32 to the pedal arm section 8, and the other end is rotatable to the brake booster 29 with a ball joint (not shown). , The brake pedal 2 can be reliably moved downward when an external force is applied from the front of the vehicle, and can be prevented from moving rearward of the vehicle. In the pedal bracket 1 of the present embodiment, the upper end of the brake pedal 2 is previously screwed to the inner bracket 10 with a bolt 23 or the like to support the shaft, and in this state, the left and right sides of the bracket body 20 of the inner bracket 10 Since the claws 24 protruding from the surface 20a are inserted into and engaged with the locking holes 12 of the outer bracket 9, the positioning and fixing of the outer bracket 9 and the inner bracket 10 are easy, and the brake pedal 2 is assembled. Work can be performed quickly and reliably. Furthermore, during normal operation of the brake pedal, the front upper end portions of the left and right side surfaces 20a of the inner bracket 10 abut against the inner surface of the top plate portion of the intermediate portion 11 of the outer bracket 9;
The relative movement between the inner bracket 10 and the outer bracket 9 is suppressed by the 4 and the locking hole 12, and the pedaling force can be transmitted to the master cylinder 30 reliably.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications and changes are possible based on the technical idea of the present invention. is there. For example, the structure of the pedal bracket of the present invention can be applied to a case where the pedal arm to be supported is a clutch pedal.

[0018]

As described above, in the structure of the pedal bracket according to the present invention, the front portion is mounted on the vehicle interior side of the dash panel and the upper portion is mounted on the column hanger, and the upper end portion of the pedal arm is rotated. It supports freely,
The pedal bracket is composed of an outer bracket and an inner bracket, a front portion of the outer bracket is attached to the dash panel, and a rear portion of the inner bracket on which the upper end of the pedal arm is pivotally mounted is attached to the column hanger. Since the inner bracket is rotatably connected to the outer bracket at a position close to the column hanger, even when an external force equal to or more than a predetermined value acts from the front of the vehicle, the pedal arm jumps into the vehicle interior. Therefore, it is possible to reliably prevent the pedal tread from moving backward of the vehicle.

[Brief description of the drawings]

FIG. 1 is a side view showing a pedal bracket to which a structure according to an embodiment of the present invention is applied and its peripheral parts.

FIG. 2 is a perspective view showing a state before an outer bracket and an inner bracket constituting the pedal bracket are assembled.

FIG. 3 is a side view showing a displacement state of the pedal bracket and peripheral components when an external force equal to or more than a predetermined value acts from the front of the vehicle.

FIG. 4 is a side view showing a pedal bracket to which a conventional structure is applied and its peripheral parts.

5 is a side view showing a displacement state of the pedal bracket and its peripheral parts in FIG. 4 when an external force equal to or more than a predetermined value acts from the front of the vehicle.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pedal bracket 2 Brake pedal 3 Engine room 4 Car room 5 Dash panel 6 Column hanger 7 Pedal step part 8 Pedal arm part 9 Outer bracket 10 Inner bracket 11 Intermediate part 12 Locking hole 13 Mounting piece 14 Tightening bolt 15 Bolt hole 16 Supporting piece 17 Pivot shaft 18 Shaft hole 19 Nut 20 Bracket body 21 Inclined piece 22 Sleeve 23 Bolt 24 Claw 25 Insertion hole 26 Tightening bolt 27 Mounting hole 28 Steering support member 29 Brake booster 31 Push rod 32 Clevis 33 Pin

Claims (4)

[Claims] 1. A structure of a pedal bracket having a front portion mounted on a vehicle interior side of a dash panel and an upper portion mounted on a column hanger for rotatably supporting an upper end portion of a pedal arm. An outer bracket and an inner bracket, a front part of the outer bracket is attached to the dash panel, a rear part of the inner bracket on which an upper end of the pedal arm is pivotally attached is attached to the column hanger, and the inner bracket is attached. A structure of a pedal bracket, wherein the pedal bracket is rotatably connected to the outer bracket at a position near the column hanger. 2. A connection position between the outer bracket and the inner bracket is disposed above a straight line connecting a pivotal support position of the pedal arm and a mounting position of the inner bracket to a column hanger in a side view. The structure of the pedal bracket according to claim 1, wherein: 3. The pedal arm is a brake pedal, one end of a push rod is attached to the brake pedal via a clevis, and the other end of the push rod is attached to a brake booster via a ball joint. 2. The pedal bracket structure according to claim 1, wherein a clevis-side end of the push rod is disposed below a ball joint-side end. 4. The inner bracket is provided with a claw protruding from a side portion thereof, and a locking hole for engaging with the claw is formed in a side surface of the outer bracket.
The structure of the pedal bracket according to 1.