JPS6173930U

JPS6173930U -

Info

Publication number: JPS6173930U
Application number: JP15896584U
Authority: JP
Priority date: 1984-10-20
Filing date: 1984-10-20
Publication date: 1986-05-19

Description

[Brief explanation of the drawing]

第１図は本考案の実施例による隙間調整装置付
ドラムブレーキ装置の正面図、第２図は第１図に
おける−線方向拡大断面図、第３図は第１図
における−線方向拡大断面図、第４図は第１
図における−線方向拡大断面図、及び第５図
は第４図における−線方向拡大断面図である
。なお図において、１…ドラムブレーキ装置、２
，３…シユー、１０…パーキング・レバー、１４
，１７…ピン、１５…調整レバー、１５ｂ…爪、
２０…ラチエツト、２０ａ…ラチエツト歯。 Fig. 1 is a front view of a drum brake device with a clearance adjustment device according to an embodiment of the present invention, Fig. 2 is an enlarged sectional view in the - line direction in Fig. 1, and Fig. 3 is an enlarged sectional view in the - line direction in Fig. 1. , Figure 4 is the first
5 is an enlarged sectional view in the - line direction in the figure, and FIG. 5 is an enlarged sectional view in the - line direction in FIG. In the figure, 1...drum brake device, 2
, 3...Show, 10...Parking lever, 14
, 17...pin, 15...adjustment lever, 15b...claw,
20...Ratchet, 20a...Ratchet tooth.

Claims

[Scope of utility model registration request]

A pair of brake shoes movably disposed on the back plate, and a pair of brake shoes provided on one end side of the pair of brake shoes, capable of pressing the pair of brake shoes against the brake drum in response to external input. an actuator, an anchor provided on the other end side of the pair of brake shoes, a return spring that biases the pair of brake shoes in a direction away from the brake drum, and a return spring that straddles the pair of brake shoes. a parking lever that is swingably supported by either one of the pair of brake shoes and that can come into contact with one end of the strut; The strut includes at least two members screwed to each other with variable effective lengths, the adjustment lever being swingably supported by the one of the pair of brake shoes together with the parking lever and having a pawl formed at the end thereof. A ratchet tooth is formed on the outer periphery of one of the two members, and the ratchet tooth and the pawl of the adjustment lever can be engaged with each other when the adjustment lever is swung in one direction. In the drum brake with a clearance adjustment device, in which the pawl is able to ride over the ratchet teeth when swinging in the direction, the adjustment lever is further pivotally supported on the parking lever at a location other than the support. Drum brake with adjustment device.