JPS60127134U

JPS60127134U - Shu-gap adjustment device

Info

Publication number: JPS60127134U
Application number: JP1294884U
Authority: JP
Inventors: 合谷　守明; 道広　達矢
Original assignee: トヨタ自動車株式会社
Priority date: 1984-01-31
Filing date: 1984-01-31
Publication date: 1985-08-27

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 the drawing]

第１図は本考案の一実施例である゛シュー間隙調整装置
番備えたドラムブレーキからブレーキドラムを取り外し
た状態を示す正面図である。第２図乃至第４図は第１図
に示したドラムブレーキから一方のホイールシリンダを
取り出して示すそれぞれ正面図（一部断面）、下面図（
一部断面）、右側面図である。第５図は本考案の別の実
施例の要部を示す正面図である。第６図は本考案の更に
別の実施例を示す第３図に相当する図である。１０：バッキングプレート、１２：シュー、１４：シュ
ーウェブ、２０：ホイールシリンダ、２２ニジリンダボ
デー、２４：ピストン、３０ニブレーキドラム、３２：
有底穴、３４ニアジヤストナツト、４０ニスターホイー
ル、４２：雌ねじ穴、４４ニアジヤストボルト、４６：
脚部、４８：頭部、５０：頂面、５４，６８，７０：切
欠、６０，６４，７２ニブレート（回転阻止部材）。第４図　・FIG. 1 is a front view showing a state in which a brake drum is removed from a drum brake equipped with a shoe gap adjustment device according to an embodiment of the present invention. Figures 2 to 4 are a front view (partial cross section) and a bottom view (partial cross section) showing one wheel cylinder taken out from the drum brake shown in Figure 1, respectively.
(Partial cross section) and right side view. FIG. 5 is a front view showing the main parts of another embodiment of the present invention. FIG. 6 is a diagram corresponding to FIG. 3 showing still another embodiment of the present invention. 10: backing plate, 12: shoe, 14: shoe web, 20: wheel cylinder, 22 cylinder body, 24: piston, 30 brake drum, 32:
Bottomed hole, 34 near-jast nut, 40 Nistar wheel, 42: Female threaded hole, 44 near-jast bolt, 46:
Legs, 48: head, 50: top surface, 54, 68, 70: notches, 60, 64, 72 nibrate (rotation prevention member). Figure 4 ・

Claims

[Claims for Utility Model Registration] A pair of shoes movably held by a backing plate is expanded by a wheel cylinder fixed to the backing plate, contacts the inner peripheral surface of the brake drum, and controls its rotation. A device for adjusting a shoe gap that is installed on a drum brake to be suppressed, the device having a piston fitted to a cylinder body of the wheel cylinder or a cylinder body itself formed so as to open in the circumferential direction of the brake drum. an adjustment nut that is rotatably fitted in a circular hole that is rotatable but cannot be inserted deeper than a certain limit, has a star wheel in the part that protrudes from the circular hole, and has a female threaded hole on its rotation center line; and an adjustment nut that has a male thread. It has a leg and a head with a non-circular cross section provided at one end of the leg, the leg is screwed into the female threaded hole, and the flat top surface of the head is connected to the shoe of one of the pair of shoes. The adjust bolt is in contact with one end of the web, one end is fixed to the 'cylinder body, and the other end is the head of the adjustment bolt and the head is allowed to move in the axial direction but is prevented from rotating. When the adjustment nut is rotated in the star wheel, the amount of protrusion of the adjustment bolt, whose rotation is prevented by the rotation prevention member, from the adjustment nut is changed, and the shoe is rotated. A shoe gap adjustment device that adjusts the gap.