JP2000108939A - Double bracket of cab - Google Patents

Abstract

PROBLEM TO BE SOLVED: To effectively prevent a pedal arm at the time of load working on the front of a cab from abutting upon the knee of a driver. SOLUTION: The top of a double bracket body 18 is attached to the cowl panel 14 of a cab, and the bottom of the double bracket body 18 is attached to a floor panel 16, and the pedal bracket body 18 is provided with a supporting shaft 23, and the supporting shaft 23 pivots a pedal arm 24. A weak part 29 which can transform when load works on the front of the cab is made at the double bracket body 18 on the side of the floor panel 16 by the supporting shaft 23. It is desirable that the weak part should be a bead 28 V-shaped in cross section, a cutout, or a hole viewed from the front of the cab, being made at the front or the rear of the double bracket body, and it may be a rib V-shaped or U-shaped in cross section viewed from the front of the cab, being made continuously in forward and backward direction of the cab.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cab pedal bracket for pivotally supporting a pedal arm of a clutch pedal or a brake pedal.

[0002]

2. Description of the Related Art Conventionally, a pedal arm of a clutch pedal or a brake pedal is attached to a cab via a pedal bracket. In this pedal bracket, the upper part of the pedal bracket body is attached to the upper part of the cowl panel of the cab with the pedal bracket body facing the direction of travel of the cab,
The lower part of the pedal bracket body is attached to the floor panel. A support shaft is provided at an intermediate portion of the pedal bracket main body, and the support shaft is configured to pivotally support the pedal arm. The clutch pedal or the brake pedal is attached to the lower end of the pedal arm, and when the clutch pedal or the brake pedal is depressed, the pedal arm pivotally supported by the pedal bracket body rotates about the support shaft and is connected to the upper end of the pedal arm. The clutch device or the brake device is driven via the booster.

[0003]

However, when a load is applied to the front surface of the cab in the conventional pedal bracket, the floor panel is deformed by the load and the pedal bracket body is moved rearward of the vehicle, and the pedal arm is moved to the driver's knee. There was a risk of giving an impact by contact with In order to prevent this problem, it is conceivable to improve the rigidity of the floor panel and the cowl panel so as not to be deformed even when a load is applied to the front surface of the cab. This causes an increase in the plate thickness and the like, resulting in an increase in the cab weight. SUMMARY OF THE INVENTION It is an object of the present invention to provide a cab pedal bracket that can effectively prevent a pedal arm from abutting a driver's knee when a load acts on a front surface of a cab.

[0004]

The invention according to claim 1 is
As shown in FIG. 1, the upper part of the pedal bracket body 18 is attached to the cowl panel 14 of the cab 11, the lower part of the pedal bracket body 18 is attached to the floor panel 16, and the support bracket 23 is provided on the pedal bracket body 18,
This is an improvement of the pedal bracket for pivotally supporting the pedal arm 24 by the support shaft 23. Its distinctive structure is the cab 11
A fragile portion 28 that is deformable when a load is applied to the front surface of the pedal bracket body 18 is formed on the pedal bracket body 18 on the floor panel 16 side from the support shaft 23. As shown in FIG.
The load F acts on the front surface of the cab 11, and the floor panel 1
When the wheel 6 moves to the rear of the cab, the pedal bracket body 18 below the weak portion 28 moves to the rear of the cab 11 together with the rear of the floor panel 16 due to the deformation of the weak portion 28, and is attached to the cowl panel 14. Support shaft 23
The pedal bracket body 18 above the fragile portion 28 including the above maintains its position. As a result, the rearward movement of the pedal arm 24 together with the support shaft 23 is suppressed, and the contact of the pedal arm 24 with the driver's knee is prevented.

[0005] The invention according to claim 2 is the invention according to claim 1, wherein the fragile portion is formed at a front portion or a rear portion of the pedal bracket main body, as shown in Figs.
A cab pedal bracket that is a bead 28, a notch 38, or a hole 48 having a V-shaped cross section when viewed from the front of the cab. The invention according to claim 3 is the invention according to claim 1, wherein the fragile portion is formed continuously in the front-rear direction of the cab, and has a V-shaped or V-shaped cross section as viewed from the front of the cab, as shown in FIG. It is a pedal bracket of a cab having a convex shape 58.
By forming the fragile portion by the bead 28, the notch 38, the hole 48, or the convex shape 58 having a V-shaped cross section, the fragile portion can be formed on the pedal bracket main body simultaneously with the processing of the pedal bracket main body. The fragile portion can be formed relatively easily and inexpensively on the pedal bracket body.

[0006]

Embodiments of the present invention will now be described in detail with reference to the drawings. As shown in FIG.
A front panel 13 is provided below one windshield glass 12, and a cowl panel 14 is provided inside the front panel 13 as shown in FIG. A lower end of the cowl panel 14 is connected to a front end of the floor panel 16, and an instrument panel 17 is provided at an upper end of the cowl panel 14. A pair of pedal bracket bodies 18 are further mounted inside the cowl panel 14 of the cab 11 in the traveling direction of the cab 11 (only one is shown in the figure).

The upper part of the pedal bracket body 18 is mounted on the upper part of the cowl panel 14, and the lower part of the pedal bracket body 18 is mounted on the floor panel 16. Further, the central portion of the upper portion of the pedal bracket body 18 is attached to the instrument panel cross member 19. Cowl panel 1 to which pedal bracket body 18 is attached
A reinforcing member 29 is attached to each of the floor panel 4 and the floor panel 16. Each of the reinforcing members 29 has the same structure, and the reinforcing member 29 in the present embodiment is a channel steel having a U-shaped cross section (FIG. 2). Pedal bracket body 1
8 is a fastening means 2 comprising bolts and nuts on the cowl panel 14 and the floor panel 16 via the reinforcing member 29.
0 The steering column 21 is attached to the pedal bracket body 18
Is formed at the rear upper part,
A support shaft 23 is provided at a vertically intermediate portion of the pedal bracket body 18 ahead of the steering column 21.
A pedal arm 24 is attached to the support shaft 23, and the pedal bracket body 18 is connected to the pedal arm 24 via the support shaft 23.
To pivot. The pedal 26 in this embodiment is a brake pedal, and a pair of pedal bracket bodies 18.
A brake booster 27 shown by a broken line is provided between
The brake booster 27 is connected to the upper end of the pedal arm 24.

The brake pedal 26 is attached to the lower end of the pedal arm 24. When the brake pedal 26 is depressed, the pedal arm 24 pivotally supported by the pedal bracket body 18 rotates about the support shaft 23, and The brake device is configured to be driven via a brake booster 27 connected to the upper end. A weak portion 28 is provided on the pedal bracket body 18 on the floor panel side from the support shaft 23.
Is formed. As shown in FIG. 2, the fragile portion 28 in the present embodiment is formed integrally with the front portion of the pedal bracket body 18 when the pedal bracket body 18 is processed. Bead.

In the cab pedal bracket constructed as described above, when the load F acts on the front surface of the cab 11 and the floor panel 16 is moved rearward by the load F as shown in FIG. Reinforcing member 29
The pedal bracket body 18 above the fragile portion 28 including the support shaft 23 attached through the boss maintains its position, but the pedal bracket body 18 below the fragile portion 28 moves rearward of the floor panel 16 and the cab moves. Attempt to move behind 11. This moving force causes the fragile portion 2
8 is deformed so as to expand in the vertical direction to allow the rearward movement of the pedal bracket body 18 below the weak portion 28 and to allow the rearward movement of the pedal bracket body 18 above the weak portion 28 including the support shaft 23. This suppresses the pedal arm 24 from abutting on the driver's knee and giving an impact.

In the above-described embodiment, the fragile portion 2
Although 8 is formed at the front part of the pedal bracket main body 18, although not shown, the weak part may be formed at the rear part of the pedal bracket main body. In this case, when the floor panel moves rearward due to the load, the fragile portion is deformed so as to be crushed in the vertical direction to allow the rearward movement of the pedal bracket body below the fragile portion, and the fragile portion including the support shaft. The rearward movement of the upper pedal bracket body is suppressed to prevent the pedal arm from abutting against the driver's knee and giving an impact.

In the above-described embodiment, the fragile portion 2
8 was formed into a bead having a V-shaped cross section when viewed from the front of the cab, but the weak portion was formed by a notch 38 shown in FIG. 5 formed in the front or rear portion of the pedal bracket body 18 or a hole 48 shown in FIG. There may be. When the notch 38 or the hole 48 is formed in the front portion of the pedal bracket main body 18, when the load moves the floor panel 16 to the rear of the cab, the notch 38 or the hole 48 is deformed so as to expand in the vertical direction. Thus, the rearward movement of the pedal bracket body 18 below the weakened portion is permitted, and the backward movement of the pedal bracket body 18 above the weakened portion including the support shaft 23 is suppressed. Although not shown, if a notch or hole is formed in the rear part of the pedal bracket body, the notch or hole will be deformed to be crushed vertically and vulnerable if the floor panel moves rearward due to the load. The rearward movement of the pedal bracket main body below the part is allowed, and the rearward movement of the pedal bracket main body above the weak part including the support shaft is suppressed.

Further, in the above-described embodiment, the fragile portion 2
8 is formed at the front portion of the pedal bracket body 18, but the weak portion has a V-shaped cross section as shown in FIG. 7 when viewed from the front of a cab formed continuously from the front end to the rear end of the pedal bracket body 18. The protrusion 58 may be a U-shaped protrusion (not shown). In this case, when the floor panel 16 moves to the rear of the cab due to the load, the front portion of the convex portion 58 is deformed so as to expand in the vertical direction, and the rear portion of the convex portion 58 is deformed so as to be crushed in the vertical direction so that the lower portion of the fragile portion is deformed. Pedal bracket body 1
8 is allowed to move rearward, and the rearward movement of the pedal bracket body 18 above the weak portion including the support shaft 23 is suppressed.

[0013]

As described above, according to the present invention, a fragile portion that can be deformed when a load is applied to the front surface of the cab is formed on the pedal bracket body on the floor panel side from the support shaft. Even if a load is applied to the front and the floor panel moves rearward of the cab, only the pedal bracket body below the fragile part moves rearward of the cab due to deformation of the fragile part, and the support shaft attached to the cowl panel moves. The pedal bracket body above the fragile part, including the weak part, maintains its position.
As a result, it is possible to prevent the pedal arm from moving backward together with the support shaft when a load is applied to the front surface of the cab, thereby preventing the pedal arm from abutting on the driver's knee.

Further, if a reinforcing member is provided on the upper portion of the cowl panel and the upper portion of the pedal bracket body is mounted via the reinforcing member, the mounting on the pedal bracket main body above the weak portion including the support shaft is strengthened, and the cab is strengthened. Movement of the pedal bracket main body above the weakened portion when a load acts on the front surface of the vehicle can be more effectively prevented, and the pedal arm can be effectively prevented from contacting the driver's knee. Furthermore, if the weak portion is formed by a bead, a notch, a hole, or a convex shape having a V-shaped cross section, the weak portion can be formed at the same time as the processing of the pedal bracket body, and is relatively easy and inexpensive. The part may be formed on the pedal bracket body.

[Brief description of the drawings]

1 shows a pedal bracket according to the invention, FIG.
Line sectional view.

FIG. 2 is an enlarged perspective view of a portion B in FIG. 1 in which a fragile portion is a bead having a V-shaped cross section.

FIG. 3 is a cross-sectional view corresponding to FIG. 1, showing a deformed state of a fragile portion due to a load applied to the front surface of the cab.

FIG. 4 is a perspective view of a cab including the pedal bracket.

FIG. 5 is a perspective view corresponding to FIG. 2 in which a fragile portion is a cutout.

FIG. 6 is a perspective view corresponding to FIG. 2 in which the fragile portion is a hole.

FIG. 7 is a perspective view corresponding to FIG. 2 in which the fragile portion is convex.

[Explanation of symbols]

 Reference Signs List 11 cab 14 cowl panel 16 floor panel 18 pedal bracket body 23 support shaft 24 pedal arm 28 bead (fragile portion) 29 reinforcing member 38 notch (fragile portion) 48 hole (fragile portion) 58 convex (fragile portion) F load

Claims (3)

[Claims] An upper portion of the pedal bracket body (18) is attached to a cowl panel (14) of a cab (11); a lower portion of the pedal bracket body (18) is attached to a floor panel (16); When a support shaft (23) is provided on the main body (18) and a load (F) is applied to the front surface of the cab (11) in a pedal bracket for pivotally supporting the pedal arm (24) by the support shaft (23). A cab pedal characterized in that a fragile portion (28, 38, 48, 58) that can be deformed is formed on the pedal bracket body (18) on the floor panel (16) side from the support shaft (23). bracket. 2. A bead (28), a notch (38), or a hole (48) having a V-shaped cross section as viewed from the front of the cab, wherein the weak portion is formed at the front or rear portion of the pedal bracket body. Claim 1
Cab pedal pedal as described. 3. The fragile portion is formed continuously in the front-rear direction of the cab, and has a V-shaped or U-shaped cross section when viewed from the front of the cab.
The cab pedal bracket according to claim 1, wherein the cab pedal is (58).