JPS6324431U

JPS6324431U -

Info

Publication number: JPS6324431U
Application number: JP11783486U
Authority: JP
Priority date: 1986-07-31
Filing date: 1986-07-31
Publication date: 1988-02-18

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例を示す正面図、第
２図はストラツト組立て体の部分を中心にして示
す側断面図である。１０……ドラムブレーキ装置、１２，１４……
ブレーキシユー、１６……ドラム、１８……バツ
クプレート、２２……ホイルシリンダ（作動装置
）、２８，３０……戻しばね、３２……ストラツ
ト組立て体、３４……ナツト部材、３６……ボル
ト、３８……ソケツト部材、４０……ラチエツト
、４２……アジヤストレバー、４２ａ……爪、４
４……パーキングレバー、４６……ピン（パーキ
ングレバーの回転中心）、４８……ピン（アジヤ
ストレバーの回転中心）、５０……ばね。 FIG. 1 is a front view showing one embodiment of this invention, and FIG. 2 is a side sectional view mainly showing the strut assembly. 10... drum brake device, 12, 14...
Brake shoe, 16... drum, 18... back plate, 22... wheel cylinder (actuating device), 28, 30... return spring, 32... strut assembly, 34... nut member, 36... bolt , 38...Socket member, 40...Ratchet, 42...Adjustment lever, 42a...Claw, 4
4... Parking lever, 46... Pin (rotation center of the parking lever), 48... Pin (rotation center of the adjustment lever), 50... Spring.

Claims

[Scope of utility model registration request]

A pair of brake shoes movably attached to the back plate, and a drum provided between one end of the pair of brake shoes that rotates the pair of brake shoes together with the wheels in response to external input. an actuating device that presses against the inner circumferential surface of the brake shoe; an anchor provided between the other end portions of the pair of brake shoes; a return spring biased in a direction away from the inner peripheral surface of the brake shoe; a parking lever that is pivotally supported by one of the pair of brake shoes and can be operated from the outside; the parking lever, one of the pair of brake shoes, and the A strut assembly mounted between the other of the pair of brake shoes, and an adjuster that is slidably supported and capable of increasing the length of the strut assembly according to movement of the pair of brake shoes. The strut assembly has at least two members screwed to each other, and the adjuster lever is engaged with the outer periphery of one member by swinging in one direction and swinging in the other direction. In the drum brake device with a gap adjustment device, which has a large number of teeth that can be overcome by a brake, the adjustment lever is opposite to the pivot side of the parking lever at the abutting portion of the parking lever and the strut assembly. A spring is provided between the adjustment lever and the parking lever side brake shoe so that a portion of the adjustment lever engages the end side of the strut assembly. Drum brake device with gap adjustment device.