JPH0319139U

JPH0319139U -

Info

Publication number: JPH0319139U
Application number: JP7892489U
Authority: JP
Priority date: 1989-07-04
Filing date: 1989-07-04
Publication date: 1991-02-25

Description

[Brief explanation of drawings]

第１図は本考案の一実施例であるブレーキシユ
ー間隙調整装置の調整作業状態を示す側面断面図
。第２図はその調整作業をしていない状態を示す
側面断面図。第３図はブレーキシリンダを示す縦
断面図。１０……ブレーキシユー間隙調整装置、１１…
…ブレーキシリンダ、１２……ブラケツト、１３
……調整器具、１４，１５……ピストン、１６…
…ブレーキドラム、１７，１８……アジヤステイ
ングメンバ、１９，２０……アジヤステイングボ
ルト、２３，２４……ブレーキシユー、２８，３
１……第１傘歯車、３２……第２傘歯車、３３…
…ロツド、３４……通孔、４２……工具係合部、
４４……リターンスプリング。 FIG. 1 is a side cross-sectional view showing an adjustment operation state of a brake shoe gap adjustment device which is an embodiment of the present invention. FIG. 2 is a side sectional view showing a state in which the adjustment work is not performed. FIG. 3 is a longitudinal sectional view showing the brake cylinder. 10... Brake shoe gap adjustment device, 11...
...Brake cylinder, 12...Bracket, 13
...Adjustment device, 14, 15...Piston, 16...
...Brake drum, 17,18...Adjustment member, 19,20...Adjustment bolt, 23,24...Brake shoe, 28,3
1...First bevel gear, 32...Second bevel gear, 33...
...Rod, 34...Through hole, 42...Tool engagement part,
44...Return spring.

Claims

[Claims for Utility Model Registration] Between a brake shoe and a piston that is housed in a brake cylinder and presses the brake shoe against a brake drum, an adjusting member rotatably fitted to the piston; A brake shoe gap adjustment device comprising: an adjuster steering bolt screwed into the adjuster steering member so as to be movable in a forward-retractable manner and linked to the brake shoe; and a first bevel gear provided on the brake shoe side of the adjuster steering member. The bracket includes: a bracket fixed to the brake cylinder so as to project around the first bevel gear; and an adjustment device attached to the bracket so as to be movable in a radial direction of the first bevel gear; A through hole is opened in the radial direction of the first bevel gear, and the adjustment device includes a rod that is inserted into the through hole so as to be movable forward and backward, and a rod that is fixed to the tip of the rod, and when the rod is advanced, the adjustment tool is inserted into the first bevel gear. a second bevel gear that can be meshed with the first bevel gear; a tool engaging portion formed at the rear end of the rod; and a tool engaging portion formed on the rear end of the rod; A brake shoe clearance adjustment device characterized by comprising a return spring for returning the brake shoe.