JPS628438U

JPS628438U -

Info

Publication number: JPS628438U
Application number: JP9975785U
Authority: JP
Priority date: 1985-06-28
Filing date: 1985-06-28
Publication date: 1987-01-19

Description

[Brief explanation of drawings]

第１図は第３図におけるブレーキシユーの一方
の側の一部を省略して示す拡大図である。第２図
は第３図における―視断面を拡大して示す図
である。第３図は本考案が適用されたシユー間隙
自動調節装置を備えたドラムブレーキの要部を示
す正面図である。第４図は第３図における―
視断面を拡大して示す図である。第５図は従来の
シユー間隙自動調節装置を備えたドラムブレーキ
に用いられるブレーキシユーの一例を示す図であ
つて、第１図に相当する図である。１０：バツキングプレート、１２，１４：ブレ
ーキシユー、２０，２２：シユーリム、２４，２
６：シユーウエブ、４０：ストラツト、４６：掛
止歯、４８：調節部材、５０：ピン、５１：アー
ム部（ストラツト係合部）、５２：係合歯、５４
：切欠、５５：嵌合部（嵌合穴）、５６：案内溝
（通路）。 FIG. 1 is an enlarged view showing one side of the brake shoe in FIG. 3 with a part omitted. FIG. 2 is an enlarged view of a cross-sectional view taken from FIG. 3. FIG. 3 is a front view showing the main parts of a drum brake equipped with an automatic shoe gap adjustment device to which the present invention is applied. Figure 4 is the same as in Figure 3.
FIG. 3 is a diagram showing an enlarged view cross section. FIG. 5 is a diagram showing an example of a brake shoe used in a drum brake equipped with a conventional shoe gap automatic adjustment device, and corresponds to FIG. 1. 10: Bucking plate, 12, 14: Brake shoe, 20, 22: Shoe rim, 24, 2
6: Shew web, 40: Strut, 46: Latch tooth, 48: Adjustment member, 50: Pin, 51: Arm portion (strut engagement portion), 52: Engagement tooth, 54
: Notch, 55: Fitting part (fitting hole), 56: Guide groove (passage).

Claims

[Scope of Claim for Utility Model Registration] A pair of brake shoes each having an arc-shaped shoe rim and a shoe web protruding from the inner circumferential side of the shoe rim, and which is disposed in an expandable manner on a bucking plate, and the brake. a strut that spans between the shoes and supports them from the inner circumferential side;
an adjusting member having a strut engaging portion that engages with one end of the strut and engaging teeth formed in an arc shape; a pin that rotatably attaches the adjustment member to the shew web by being fitted into a fitting hole provided in the shew web on the side; and latch teeth provided on the sides to prevent the adjusting member from rotating in the direction of increasing the shoe gap but allowing rotation in the direction of decreasing the shoe gap, and the shoe gap is automatically adjusted depending on the rotational position of the adjusting member. In a drum brake equipped with an automatic shoe gap adjustment device of the type that adjusts the shoe gap, a cut is made between the fitting hole provided in the shoe web on one side of the brake shoe and the inner circumferential edge of the shoe web. 1. A drum brake equipped with an automatic shoe gap adjustment device, characterized in that a passage is formed to allow passage of the pin from the inner circumferential edge to the fitting hole.