JPS6175532U

JPS6175532U -

Info

Publication number: JPS6175532U
Application number: JP16056684U
Authority: JP
Priority date: 1984-10-24
Filing date: 1984-10-24
Publication date: 1986-05-21

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、第５図は第
４図における−線方向拡大断面図、及び第６
図は第１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
、１０ａ……開口、１５……調整レバー、１５ｂ
……突部、１５ｄ……爪、２０……ラチエツト、
２０ａ……ラチエツト歯、３５……コイルばね。 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
Fig. 5 is an enlarged sectional view in the - line direction in Fig. 4, and Fig. 6 is an enlarged sectional view in the line direction in Fig. 4.
The figure is an enlarged sectional view in the - line direction in FIG. 1. In addition, in the figure, 1... drum brake device,
2, 3...Show, 10...Parking lever, 10a...Opening, 15...Adjustment lever, 15b
... protrusion, 15d ... claw, 20 ... ratchet,
20a...Ratchet tooth, 35...Coil spring.

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 an anchor 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; an adjustment lever having a pawl formed at an end that is swingably supported by the one of the pair of brake shoes together with the parking lever; and an adjustment lever that is stretched between the adjustment lever and the parking lever and and an elastic body that urges the adjustment lever to return in response to the return. The ratchet teeth and the adjustment lever pawl can be engaged with each other when the adjustment lever swings in one direction, and when the adjustment lever swings in the other direction, the pawl engages with the ratchet. In the drum brake with a clearance adjustment device that can be configured to ride over teeth, the parking lever is provided with an opening, the adjustment lever is provided with a protrusion that can engage with the end surface of the opening on the brake drum side, and the elastic body A drum brake with a gap adjustment device having a compression spring that presses a protrusion toward the brake drum side end surface.