JPS6280032U

JPS6280032U -

Info

Publication number: JPS6280032U
Application number: JP17314285U
Authority: JP
Priority date: 1985-11-11
Filing date: 1985-11-11
Publication date: 1987-05-22

Description

[Brief explanation of the drawing]

第１図はこの考案の第一実施例を示す正面図、
第２図は第２実施例を示す正面図、第３図は従来
例の正面図である。１……バツクプレート、４……シリンダ装置、
５……アンカ部、２０，２１，３８……弓形ブレ
ーキシユー、２２，２３……回動片、２４，２５
……回動軸、３０，３１……スプリング、３２，
３３……枠線。 Figure 1 is a front view showing the first embodiment of this invention;
FIG. 2 is a front view showing the second embodiment, and FIG. 3 is a front view of the conventional example. 1... Back plate, 4... Cylinder device,
5... Anchor part, 20, 21, 38... Arcuate brake shoe, 22, 23... Rotating piece, 24, 25
... Rotation axis, 30, 31 ... Spring, 32,
33...Frame line.

補正昭６１．６．１６実用新案登録請求の範囲を次のように補正する
。Amendment June 16, 1986 The scope of claims for utility model registration is amended as follows.

【実用新案登録請求の範囲】バツクプレートに拡張可能に配設されたブレー
キシユーを、その一端を支点として押動手段によ
り拡張する内部拡張式ドラムブレーキにおいて、
上記ブレーキシユーの少なくともいずれか一方の
ブレーキシユーのシユーウエブ一側に沿う如く延
長するスプリングを設け、該スプリングの両端に
対応するブレーキシユーのシユーウエブ一側に軸
を支点として回動する回動片を設け、上記スプリ
ングにおける両端を上記回動片を介して反対側の
ブレーキシユーに枠線で接続し、両ブレーキシユ
ーに互いに近接する方向の力を与えるようにした
ことを特徴とするドラムブレーキ装置。[Scope of Claim for Utility Model Registration] An internally expandable drum brake in which a brake shoe expandably disposed on a back plate is expanded by a pushing means using one end of the brake shoe as a fulcrum,
A spring is provided that extends along one side of the shoe web of at least one of the brake shoes, and rotation is performed around a shaft on one side of the shoe web of the brake shoe corresponding to both ends of the spring. The spring is characterized in that both ends of the spring are connected by a frame line to the brake shoes on the opposite side via the rotating pieces, and a force is applied to both brake shoes in the direction of approaching each other. Drum brake device.

Claims

[Scope of utility model registration request]

In an internally expandable drum brake in which a brake shoe expandably disposed on a back plate is expanded by a pushing means using one end of the brake shoe as a fulcrum,
A spring is provided that extends along one side of the shoe web of at least one of the brake shoes, and rotation is performed around a shaft on one side of the shoe web of the brake shoe corresponding to both ends of the spring. The spring is characterized in that both ends of the spring are connected to the brake shoes on the opposite side via the rotating pieces with a frame so as to apply a force in a direction to bring both brake shoes closer to each other. Drum brake device.