KR19980036912A - Brake shoe with drum brake - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a brake shoe in which a web and a table are integrally formed in the brake shoe of a drum brake system of an automobile, and thus the assemblability can be improved, and is integrated in the arc-shaped web 6 and the web 6. Including a plurality of projection pieces are formed, the plurality of projection pieces are characterized in that they are projected at right angles to the web (6) to face the front of the web (6) staggered.

Description

Brake shoe with drum brake

1 is an exploded perspective view showing a brake system of a motor vehicle.

2 is a perspective view showing a conventional brake shoe.

3 is a perspective view of a brake shoe according to the present invention.

* Description of the symbols for the main parts of the drawings *

1 drum 2 back plate

3: wheel cylinder 4: brake shoe

5: friction material 6: web

7: table 8: protrusion

[Technical Field of Invention]

The present invention relates to a brake shoe of a drum type brake system of an automobile, and more particularly, to a brake shoe in which the web and the table are integrally formed to improve assembly.

[Prior art]

Typically, a brake system of an automobile is a device used to decelerate or stop a driving vehicle or to maintain a parking state. In such a brake system, a friction type brake system is usually used which converts kinetic energy of an automobile into thermal energy and releases frictional heat into the atmosphere by using frictional force between the wheel and the brake member.

The friction brake system includes an operating mechanism for increasing the driver's operating force by using a link or hydraulic pressure and transmitting the same to the main body, and a brake main body generating a braking force by receiving the force transmitted from the operating mechanism.

The brake body also has a drum brake and a disk brake, of which a dual brake is shown in FIG.

As shown in FIG. 1, the drum brake has both brake shoes 4 which expand and contract by the operation of the drum 1, the back plate 2, the wheel cylinder 3, and the wheel cylinder 3. And a friction material attached to the outer circumferential surface of the brake shoe 4 so as to be in close contact with the inner circumferential surface of the drum 1 when the brake shoe 4 is expanded.

The drum brake is mounted inside the disc of the tire wheel and rotates together with the tire wheel when the vehicle is driven. When the driver presses the brake pedal, the brake shoe 4 is operated by the hydraulic operation of the wheel cylinder 3 transmitted from the master cylinder. As the friction material extends toward the drum 1 and comes into close contact with the inner circumferential surface of the drum 1, a braking force is generated by friction between the friction material and the drum 1.

Meanwhile, as shown in FIG. 2, the brake shoe is welded such that the web 6 and the table 7 have a 'T' cross section, and a friction material is attached to the outer circumferential surface of the table 7.

[Technical problem to be achieved]

However, the brake shoe as described above has a disadvantage in that the assembly process is increased and the production cost is increased because the web and the table are separately manufactured and welded.

Accordingly, an object of the present invention is to provide a brake shoe in which the web and the table are integrally formed in order to solve the above problems.

[Configuration and Function of Invention]

In order to achieve the above object, the brake shoe according to the present invention includes a web and a plurality of projection pieces integrally formed on the web, wherein the plurality of projection pieces are opposed to the front part of the web and are perpendicular to the web. Characterized by being protruded.

EXAMPLE

Hereinafter, a preferred embodiment according to the present invention will be described in detail with reference to the drawings.

In figure 3 a brake shoe according to the invention is shown.

As shown in FIG. 3, the brake shoe 4 according to the invention comprises a web 6 and a plurality of projection pieces integrally formed on the web 6, such that the plurality of projection pieces are web 6. Opposite to the front of the staggered, the projections at right angles to the web 6, the friction material 5 is attached to the projection pieces.

[Effects of the Invention]

According to the present invention as described above, since the brake shoes are integrally formed, the assemblability is improved, the production cost is reduced, and the parts can have the effect of increasing the reliability.

Claims (1)

In a brake shoe of a drum brake system of an automobile, a plurality of projection pieces, including an arcuate web and a plurality of projection pieces integrally formed on the web, are opposed to the front part of the web, and project at right angles to the web. Brake shoes characterized in that.