JPS60123438U

JPS60123438U - Drum brake auto adjuster device

Info

Publication number: JPS60123438U
Application number: JP1017384U
Authority: JP
Inventors: 新倉　秀昭
Original assignee: 曙ブレーキ工業株式会社
Priority date: 1984-01-30
Filing date: 1984-01-30
Publication date: 1985-08-20
Also published as: JPH0130668Y2

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図は本考案に係るオートアジャスタ装置をドラムブ
レーキのシューに組付けた状態を示す正面図、第２図は
同オートアジャスタ装置の要部を示す底面図、第３図は
本考案の他の構造例を示す要部正面図、第４図は第３図
の構造例におけるシューの要部平面図である。１：リーディングシュー、１ａ：ウェブ、２９２′：ト
レーリングシュー、２３　ｖ　　２　ａ’　：ウエブ、
２′ｃ：係止片、３，３’：ホルダ、３ａ：二股部、３
ａ′、３ａ″：突起、３’ｂ、３ｂ：二股部、３ｂ′：
突起、３ｂ″：下側突起（フック部）、３ｃ、３’（：
ピン、３′ｅ：係合部、３′ｆ：通孔、４：パーキング
レバー、４ａ：通孔、５ニストラツト、５ａ：歯部、５
ｂ：カム部、５ｃ、５Ｃ′：突起、６：ラッチ、６ａ：
溝、６ｂ＝歯部、７：アジャスタスプリング。Fig. 1 is a front view showing the auto-adjuster device according to the present invention assembled to the shoe of a drum brake, Fig. 2 is a bottom view showing the main parts of the auto-adjuster device, and Fig. 3 is the other device according to the present invention. FIG. 4 is a front view of the main part showing the structural example of FIG. 3, and FIG. 4 is a plan view of the main part of the shoe in the structural example of FIG. 1: Leading shoe, 1a: Web, 292': Trailing shoe, 23 v 2 a': Web,
2'c: Locking piece, 3, 3': Holder, 3a: Forked part, 3
a', 3a'': protrusion, 3'b, 3b: bifurcated part, 3b':
Protrusion, 3b'': Lower protrusion (hook part), 3c, 3'(:
Pin, 3'e: Engaging portion, 3'f: Through hole, 4: Parking lever, 4a: Through hole, 5 Ni strut, 5a: Teeth, 5
b: Cam part, 5c, 5C': Protrusion, 6: Latch, 6a:
Groove, 6b = tooth, 7: adjuster spring.

Claims

[Scope of utility model registration request]

A pair of brake shoes are disposed facing the backing plate and have an expanding means sandwiched between one end thereof, and the webs of the pair of brake shoes are received in the bifurcated portions of both ends, and one of the brake shoes or the brake shoe is A parking lever that is pivotally supported in the holder and a holder that engages with each other by allowing a relative movement corresponding to the sum of the proper shoe gaps of both shoes, and a circular arc surface that is rotatably supported within the holder and centered on the pivot point. A strut with a cam part formed at one end that abuts the inner surface of the brake shoe or parking lever, a toothed part formed at the other end curved part, and given a rotational habit to reduce the shoe gap. and a latch that has a tooth portion that meshes with the tooth portion of the strut, and is disposed within the holder and engages with the web of the other brake shoe while restricting movement of the web in the plate thickness direction. Automatic adjustment device for drum brakes. ,・′