JPS6418645U

JPS6418645U -

Info

Publication number: JPS6418645U
Application number: JP11197787U
Authority: JP
Priority date: 1987-07-23
Filing date: 1987-07-23
Publication date: 1989-01-30
Also published as: JPH0414671Y2

Description

[Brief explanation of the drawing]

第１図は従来の隙間自動調整機構を備えたブレ
ーキ装置の要部縦断面図、第２図は本考案のブレ
ーキ装置におけるカツプ型ピストンの組付時の要
部縦断面図、第３図は本考案のブレーキ装置にお
けるカツプ型ピストンをブレーキ本体のシリンダ
に組立てた要部縦断面図である。図中、１はブレーキ本体、２はブレーキ操作用
シリンダ、７はアジヤステイングナツト、１２は
多条の雌ねじ、１３は回転規制部材、１４はリタ
ーンスプリング、１７はカツプ型ピストン、１８
はカツプ状の開口、２０は通気孔、２１はアジヤ
ステイングスクリユー、２２はアジヤステイング
スクリユーの先端部、２３は多条の雄ねじを刻ん
だ円柱状のスクリユー部分、２７はセツトスプリ
ング、２８はスラスト軸受、３０はカツプシール
である。 Fig. 1 is a vertical sectional view of the main part of a brake device equipped with a conventional automatic gap adjustment mechanism, Fig. 2 is a longitudinal sectional view of the main part of the brake device of the present invention when the cup-shaped piston is assembled, and Fig. 3 is FIG. 2 is a vertical cross-sectional view of the essential parts of the brake device of the present invention, in which the cup-shaped piston is assembled to the cylinder of the brake body. In the figure, 1 is the brake body, 2 is a brake operation cylinder, 7 is an adjusting nut, 12 is a multi-thread female thread, 13 is a rotation regulating member, 14 is a return spring, 17 is a cup-shaped piston, 18
20 is a cup-shaped opening, 20 is a ventilation hole, 21 is an adjusting screw, 22 is a tip of the adjusting screw, 23 is a cylindrical screw portion with multiple external threads, 27 is a set spring, and 28 is a The thrust bearing 30 is a cup seal.

Claims

[Scope of utility model registration request]

Although the adjusting nut 7 cannot be rotated on the brake operation cylinder 2 provided in the brake body 1, it is pressed toward the brake body side behind the cylinder 2 by the return spring 14 so that it can move in the axial direction of the cylinder 2. A cup-shaped piston 17 is provided and slidably fits into the cylinder 2.
An adjusting screw 21 that can be rotated is provided by a set spring 27 so as to frictionally engage with the piston 17, and a cup seal and an adjusting screw 21 are provided near the open end of the opening 18 of the piston 17 and around the adjusting nut 7. The adjusting nut 7 and the adjusting screw 21 are screwed together to fit the piston 17 into the cylinder 2, and the cup seal closes the opening of the piston 17. In an automatic gap adjustment device for a hydraulic brake having an air chamber 18, the piston 17 is provided with a rotatable adjusting screw 21 whose tip is assembled by being pressed against the cup-shaped piston 17 by a set spring 27. A brake device equipped with an automatic gap adjustment mechanism, which is configured to protrude from the tip of a cup seal.