JPS6124547U

JPS6124547U - Drum brake device with gap adjustment device

Info

Publication number: JPS6124547U
Application number: JP8878384U
Authority: JP
Inventors: 秀行森本
Original assignee: 株式会社ナブコ
Priority date: 1984-06-14
Filing date: 1984-06-14
Publication date: 1986-02-13

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は本考案の実施例による隙間調整装置付ドラムブ
レーキ装置の部分破断乎面図、第２図は第１図における
■一■線方向拡大断面図、第３図は第１図における■一
■線方向拡大断面図、第４図及び第５図は第１図におけ
る隙間調整装置の作″奔型Ｒ女〒〒冒こ゜一．ヵ、２、３・・・シュー、４・・・ホイールシリンダ、６・
・・バックプレート、７，訃・・ブレーキライニング、
１２，１３・・・リターンスプリング、１５・・・第１
部材、１８・・・一端面、２０・・・爪部、２１・・・
第２部材、２２・・・噛合部材、２４．２５・・・歯、
２６・・・突出部、２８・・・隙間、３１・・・ばか穴
。Fig. 1 is a partially cutaway view of a drum brake device with a clearance adjustment device according to an embodiment of the present invention, Fig. 2 is an enlarged cross-sectional view in the direction of the 4 and 5 are enlarged cross-sectional views in the direction of the first line, and FIGS. 4 and 5 show the construction of the gap adjustment device in FIG. Wheel cylinder, 6.
・・Back plate, 7. Brake lining,
12, 13... return spring, 15... first
Member, 18... One end surface, 20... Claw portion, 21...
Second member, 22... meshing member, 24.25... tooth,
26... Protrusion, 28... Gap, 31... Stupid hole.

Claims

[Scope of utility model registration request]

A pair of shoes movably disposed on a back plate so as to be able to come into contact with a brake drum, a return spring tensioned between the pair of shoes to urge the shoe to a non-operating position, and the return spring. an actuator that brings the pair of shoes into contact with the brake drum against the return force of the brake drum;
and a gap adjustment device that defines a gap amount between the pair of shoes and the brake drum within a predetermined range when the pair of shoes are in a non-operating position, wherein the gap adjustment device The device includes a first shoe that can come into contact with one shoe and extends close to the other shoe.
a member, an actuating spring that urges the first member toward one shoe, a second member rotatably supported by the other shoe, and an opposing relationship between the second member and the other shoe; a pair of meshing parts, each of which is provided on each of the first and second members, at least one of which has a large number of teeth that can mesh with each other; an engaging portion that engages with each other to enable rotation of the second member after closing a predetermined gap during operation; and the pair of shoes provided at a support portion of the second member and the other shoe. When the second member rotates in response to excessive movement of the second member, the gap has an allowance space that allows relative displacement between the pair of meshing parts to allow a change in the meshing position of the pair of meshing parts. Drum brake device with adjustment device.