JPS5919654Y2 - Support device for booster braking operation mechanism - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a support device for a booster braking operation mechanism mainly used in the brake system of a cab-over type automobile.

For example, in a typical car body structure in front of the driver's seat in a cab-over type car, as shown in Figs. , and bolts 5, and this bracket 2 is formed by a front plate 2a and left and right side plates 2b.

Clamps 4 that hold the steering column 3 are fastened with bolts 6 to the upper and lower parts of the front plate 2a, and a brake clamp 4 is attached to the right side plate 2b almost parallel to the column 3. A mask cylinder 7 is attached with long bolts 8.

The steering shaft 9 passing through the inner hole of the column 3 is guided below the floor via two joints 10 and a rod 11.

Further, between the both side plates 2b of the bracket 2, a bolt support shaft 1 is provided.
A brake pedal 13 and a clutch pedal 14 are pivotably supported at their respective intermediate bases on the projecting portions on both sides of the support shaft 12.

The operating rod 7a of the mask cylinder 7 is pivotally connected to the tip of the upper arm of the brake pedal 13.

Therefore, by depressing the brake pedal 13, hydraulic pressure is generated in the mask cylinder 7, and as a result,
The brakes are now loose on the wheels.

By the way, according to such a conventional support structure for a brake operating mechanism, since the space in front of the column 3 is partitioned by the side plate 2b of the bracket 2, there is not enough space to install the brake boost servo mechanism. There is no space above the brake pedal 13, and therefore it has been difficult to install a brake booster in conventional cab-over vehicles of medium or smaller size.

The present invention was developed in view of the current situation, and the purpose of the present invention is to provide a support device for a booster braking operation mechanism that enables the brake system to be boosted even in small cab-over type vehicles. Our goal is to provide the following.

Hereinafter, the present invention will be explained based on an illustrated embodiment.

In the support device of this embodiment, as shown in FIGS. 6 to 9, a support bracket 2 having the same structure as the conventional bracket 2 described above is fixed to the front panel 1, but in this embodiment, An L-shaped frame plate-like retainer 15 is protruded from the right side of the lower half of the bracket 2 .

That is, the retainer 15 is formed of a rectangular receiving plate 15a with an upward slope, and an end plate 15b that contacts the right side bracket side plate 2b, and a collar portion formed on the edge of the receiving plate 15a. is fixed to the side plate 2b with bolts 16, and the rear edge of the end plate 15b is fixed to the front panel 1 with bolts 17.

On the upper surface of the receiving plate 15a, a booster servo mechanism section 21, which is formed by integrally forming the double crab knit 18 and the mask cylinder 19 with bolts 20, is fixed with bolts 22.

Furthermore, the left side bracket side plate 2b and the retainer end plate 1
5b, a bolt support shaft 23 that passes through the right side plate 2b is horizontally suspended, and a clutch pedal 14 is pivotally supported on the left side overhang of the support shaft 23, and An intermediate base 24a of a brake pedal 24 is pivoted between the right side plate 2b and the end plate 15b.

In this brake pedal 24, the lower arm is offset to the left in the middle, and the tip of the upper arm is pivotally connected to the operating rod 18a of the double crab knit 18.

Therefore, by depressing the brake pedal 24, a hydraulic pressure is generated in the mask cylinder 19 with a pressure value equal to the operational pressure corresponding to the pedal depressing force plus the operating pressure of the double crab unit 18, and the brake is activated. It makes you more profitable.

In this way, in the support device of the embodiment, the booster servo mechanism can be installed using the empty space near the lower end of the steering column 3.

Note that since the mask cylinder 7 can be directly attached to the retainer 15, it is possible to optionally attach a boosting servo mechanism to the same vehicle body structure.

As described above, according to the support device for the booster braking operation mechanism according to the present invention, the retainer is extended to the right from the support bracket, and the booster servo mechanism is mounted on the receiving plate of the retainer. With this configuration, even if the vehicle body has a narrow front part of the driver's cab, such as a small cab-over vehicle, it is possible to attach a boost servo mechanism, which has the effect of reducing the braking force of the vehicle. There is.

[Brief explanation of the drawing]

FIG. 1 is a side view of a conventional support device for a brake operation mechanism, FIG. 2 is a partial front view of the forfeiture II shown in FIG. 1, FIG. 3 is a side view of FIG. 2, and FIG. FIG. 2 is a top view taken along line IV-IV, FIG. 5 is a top view taken along line V-■ in FIG. 7 is a front view corresponding to FIG. 2, FIG. 7 is the upper surface side taken along the line 1-Vll in FIG. 6, and FIG. 8 is a view corresponding to FIG.
FIG. 6 is a side view, and FIG. 9 is an oblique bottom view taken along line IX-IX in FIG. 8. DESCRIPTION OF SYMBOLS 1... Front panel of vehicle interior, 2... Support bracket, 3... Steering column, 15... Retainer, 15a... Receiving plate, 15 b... End plate, 21...
... Boosting servo mechanism section, 23... Support shaft, 24... Brake pedal, 24 a... Intermediate base.

Claims (1)

[Claims for Utility Model Registration] Double the number of vehicles that have a structure in which the brake pedal, other operating pedals, and the column of the two-joint steering shaft are supported by a support bracket fixed near the front wall of the passenger compartment. In a support device for a force braking operation mechanism, a retainer extends from the support bracket to the right side of the vehicle body and has a plate surface with an upward slope;
A frame plate-like retainer formed by an end plate suspended from the right end of the receiving plate, a support shaft supported horizontally by the end plate and the support bracket, and mounted on the receiving plate. A booster braking system characterized in that a booster servo mechanism is provided, and a brake pedal whose intermediate base is pivoted to the support shaft and which operates and drives the servo mechanism at the upper end of the arm is provided. Support device for operating mechanism.