JPS6038947U

JPS6038947U - Vehicle drum brake

Info

Publication number: JPS6038947U
Application number: JP13178383U
Authority: JP
Inventors: 岩下　一成
Original assignee: 日信工業株式会社
Priority date: 1983-08-26
Filing date: 1983-08-26
Publication date: 1985-03-18

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]

図は本考案の一実施例を示すもので、第１図はドラムブ
レーキの正面図、第２図は制動間隙自動調整装置の正面
図、第３図は同じく一部断面平面図である。１はバックプレート、２，２はブレーキシュー、４はホ
イールシリンダ、６はアンカブロック、１０は駐車ブレ
ーキレバー、１１はスートラツ　　　□ト、ｌｌｃは長
孔、ｌｌｄは段部、１２はベルクランクレバー、１２ａ
は係合孔、１２ｂは第１腕、１２ｃは第２腕、１２ｄは
セレーション、１３は制動間隙自動調整装置、１５はピ
ン、１６は調節部、１７は係止輪、１７ａはセレーショ
ン、１９は引張り把手、１９ａは長孔、１９ｂ、１９ｂ
は側板、１９ｃは把手部、２０，２０はガイド、２０ａ
は端面、”’ＬＣは間隙である。The drawings show one embodiment of the present invention; FIG. 1 is a front view of a drum brake, FIG. 2 is a front view of an automatic braking gap adjustment device, and FIG. 3 is a partially sectional plan view. 1 is a back plate, 2 and 2 are brake shoes, 4 is a wheel cylinder, 6 is an anchor block, 10 is a parking brake lever, 11 is a bracket, llc is a long hole, lld is a stepped part, 12 is a bell crank lever, 12a
12b is the engagement hole, 12b is the first arm, 12c is the second arm, 12d is the serration, 13 is the braking gap automatic adjustment device, 15 is the pin, 16 is the adjustment part, 17 is the locking ring, 17a is the serration, 19 is Tension handle, 19a is a long hole, 19b, 19b
is the side plate, 19c is the handle, 20, 20 is the guide, 20a
is the end face, and LC is the gap.

Claims

[Scope of utility model registration request]

A strut and a bell crank lever are interposed between the webs of a pair of brake shoes that are slidably supported on a back plate, and are pivotally supported by a retaining pin so as to be movable in the operating direction of the brake shoes. The bell crank lever is formed with a first arm that is engaged with the adjustment portion of the web with a certain gap therebetween, and a second arm that has serrations that engage with the serrations of the locking ring fixed to the strut. In a drum brake for a vehicle equipped with an automatic braking gap adjustment device in which an adjustment spring is adjusted between the struts in a direction that urges engagement between the serrations, a strut width direction is provided at the end of the strut on the bell crank lever engagement side. A drum brake for a vehicle, characterized in that a tension handle having a handle portion bent once is attached to the engagement pin, and a guide portion of the tension handle is formed at the end of the strut.