JPS6159158U

JPS6159158U -

Info

Publication number: JPS6159158U
Application number: JP14556184U
Authority: JP
Priority date: 1984-09-25
Filing date: 1984-09-25
Publication date: 1986-04-21
Also published as: JPH0237654Y2

Description

[Brief explanation of the drawing]

第１図はこの考案の第１の実施例の縦断面説明
図、第２図は第１図の−線断面説明図、第３
図は反力を受けた場合の作動説明図、第４図は第
２の実施例の縦断面部分説明図、第５図は第４図
の−線断面説明図、第６図は従来の問題点を
解決するための別の技術的手段の説明図、第７図
乃至第１４図は従来技術の説明図であつて、第７
図は縦断面説明図、第８図は第７図の−線断
面説明図、第９図から第１４図はブレーキ作動説
明図である。２…給排孔、３…シリンダ体、４…弛めばね、
５…ピストン、６…直線キー溝、７…螺旋キー溝
、１０…サヤ棒、１１…押棒受、１２…フオーク
、１３…押棒、１４…第１キー、１５…第１ラチ
エツト歯車、１６…第１押えばね、１７…第１爪
、１８…第２キー、１９…第２ラチエツト歯車、
２０…第２押えばね、２１…第２爪、４０…ボル
ト、４１…支え板、４２…第１突起、４３…ピン
、４４…第２突起、４５…戻しばね、４６…第３
突起。 Fig. 1 is an explanatory longitudinal cross-sectional view of the first embodiment of this invention, Fig. 2 is an explanatory cross-sectional view taken along the - line in Fig. 1, and Fig.
The figure is an explanatory diagram of the operation when a reaction force is applied, Fig. 4 is a longitudinal cross-sectional partial explanatory diagram of the second embodiment, Fig. 5 is an explanatory diagram of the - line cross-section of Fig. 4, and Fig. 6 is a conventional problem. 7 to 14 are explanatory diagrams of another technical means for solving the problem, and are explanatory diagrams of the prior art.
8 is an explanatory longitudinal cross-sectional view, FIG. 8 is an explanatory cross-sectional view taken along the line -- in FIG. 7, and FIGS. 9 to 14 are explanatory views of brake operation. 2... Supply/discharge hole, 3... Cylinder body, 4... Loosen spring,
5... Piston, 6... Straight keyway, 7... Spiral keyway, 10... Sheath rod, 11... Push rod holder, 12... Fork, 13... Push rod, 14... First key, 15... First ratchet gear, 16... Number 1 press, 17...first pawl, 18...second key, 19...second ratchet gear,
20...Second pressing spring, 21...Second pawl, 40...Bolt, 41...Support plate, 42...First protrusion, 43...Pin, 44...Second protrusion, 45...Return spring, 46...Third
protrusion.

Claims

[Scope of claims for utility model registration] (1) A cylinder body having a pressure air supply and discharge hole;
A piston is slidably fitted into the cylinder body and is biased by a release spring in the brake release direction; A cylindrical sheath rod having a groove and a helical keyway having a twist angle with respect to the axial direction formed on the outer periphery, a push rod holder screwed inside the sheath rod so as to be rotatable in the circumferential direction, and the push rod. A push rod whose rear end is attached to the receiver and a fork for connecting brake shoes is formed at the tip, and a first key which is fitted onto the outer periphery of the sheath rod so as not to be movable in the axial direction and which is fitted into the linear keyway is located inside. a protruding first ratchet gear; a first pawl that is biased by a first pressing spring and comes into contact with the outer periphery of the first ratchet gear to restrict its reversal; a second ratchet gear which is fitted onto the outside and has a second key protruding inwardly that is fitted into the spiral key; and a second ratchet gear which is biased by a second pressure spring and comes into contact with the outer periphery of the second ratchet gear to limit its reversal. A brake cylinder with a gap adjustment mechanism comprising two pawls, a side wall of a spring cover connected to the front end of the cylinder body and facing the second ratchet gear, and a side wall of the ratchet cover facing the first ratchet gear. In addition to connecting with a plurality of bolts, a support plate is connected between the second ratchet gear and the side wall of the spring cover, between the first ratchet gear and the side wall of the ratchet cover, or between the two ratchet gears on the outer periphery of the sheath rod. The first claw and the second claw are rotatably connected to a pin supported by a first projection formed on the outer periphery of the support plate, and the first claw and the second claw are rotatably connected to a pin supported by a first projection formed on the outer periphery of the support plate. The other end of a return spring whose one end is connected and fixed to one of the plurality of bolts is connected to the two protrusions, and the third protrusion formed on the outer periphery of these support plates is attached to the support plate by the biasing force of the return spring. A brake cylinder with a clearance adjustment mechanism, characterized in that the brake cylinder is configured to abut one of the plurality of bolts so that the brake cylinder does not rotate by more than a predetermined amount. (2) A brake cylinder with a clearance adjustment mechanism according to claim 1 of the registered utility model, which also serves as the second protrusion.