JPS5935746U

JPS5935746U - Braking gap automatic adjustment device for mechanical drum brakes

Info

Publication number: JPS5935746U
Application number: JP13170282U
Authority: JP
Inventors: 出沢　功
Original assignee: Nissin Kogyo Co Ltd
Current assignee: Astemo Ltd
Priority date: 1982-08-31
Filing date: 1982-08-31
Publication date: 1984-03-06
Also published as: JPS61588Y2

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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

図面は本考案の一実施例を示すもので第１図は正面図、
第２図は背面図、第３図は第２図のｍ−■断面図、第４
図は平面図、第５図はストッパレバーの係止前の状態を
示す正面図、第６図はスト−ツバレバーの係止前の状態
を示す断面図、第７図はストッパレバーの係止状態を示
す正面図、第８図はストッパレバーの係止状態を示す断
面図、第９図および第１０図は他の実施例に示すもので
、　−第９図はストッパレバーの係止前の状態を示す断
面図、第１０図はストッパレバーの係止状態を示す断面
図、第１１図および第１２図は更に他の実施例を示すも
ので、第１１図はストッパレバーの係止前の状態を示す
正面図、第１２図はストッパレバーの係止状態を示す正
面図である。２．２′はブレーキシュー、５はカム部材、７はブレー
キアーム、１４はアジャストギア、１５は隔壁、２１は
ストッパレバー、２２は異形開口部、２３，３３．３４
はストッパ手段、２４は支持ピン、２５はスプリング部
材、２６はアジャストレバーである。／ｌ　　　　　　　ｌ　　　　　　　　　　　　　　　
　　　　　　　　％ζ；１５２６　　２３豪４因１゜The drawings show one embodiment of the present invention, and Figure 1 is a front view;
Figure 2 is a rear view, Figure 3 is a sectional view along m-■ in Figure 2, and Figure 4 is
The figure is a plan view, FIG. 5 is a front view showing the state of the stopper lever before it is locked, FIG. 6 is a sectional view showing the state of the stopper lever before it is locked, and FIG. 7 is the state of the stopper lever being locked. FIG. 8 is a cross-sectional view showing the stopper lever in a locked state; FIGS. 9 and 10 show other embodiments; - FIG. 9 shows the stopper lever in a state before it is locked; FIG. 10 is a cross-sectional view showing the stopper lever in a locked state, FIGS. 11 and 12 show still other embodiments, and FIG. 11 shows the stopper lever in a state before it is locked. FIG. 12 is a front view showing the stopper lever in a locked state. 2.2' is a brake shoe, 5 is a cam member, 7 is a brake arm, 14 is an adjustment gear, 15 is a partition wall, 21 is a stopper lever, 22 is an irregularly shaped opening, 23, 33.34
24 is a support pin, 25 is a spring member, and 26 is an adjustment lever. /l l
%ζ；1526 23 Australia 4 factors 1゜

Claims

[Scope of utility model registration request]

A cam collar that is slidably fitted in the axial direction to the cam member that expands the brake shoes as the brake arm rotates and comes into contact with the free end of the shoe web, and a cam collar that is screwed into the cam member in the axial direction and pushes the cam collar. Adjustment bolt and
An adjustment gear that is rotatably engaged with the adjustment bolt; a stopper lever that is engaged with the adjustment gear to restrict the rotation of the cam member in the operating direction; In an automatic braking gap adjustment device for a mechanical drum brake, which includes an adjustment lever that adjusts the meshing position in the operating direction of a cam member when it wears out,
The irregularly shaped opening formed at the base of the stopper lever is inserted into a support pin provided upright on the fixed body, so that the stopper lever can be slid onto the stopper means provided on the fixed body, and the front cam member is moved by the spring member. The stopper lever is biased in the operating direction, and when the stopper lever moves a predetermined amount in the operating direction of the cam member, the stopper means is deflected and locked, and the meshing relationship between the stopper lever and the adjustment gear is released. This is an automatic braking gap adjustment device for mechanical drum brakes.