JPS60130168U - pneumatic booster - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

図面はこの考案の一実施例である倍力装置の全体構成を
示す側断面図である。 １・・・・・・倍力装置、６・・・・・・本体、９・・
・・・・ハブ部材、９１・・・・・・後方部分、１０・
・・・・・可動壁、１１・・・・・・低圧室、１２・・
・・・・高圧室、１３・・・・・・内孔、１５・・・・
・・出力軸、１７・・・・・・プランジャ、１８・・・
・・・入力軸、１９・・・・・・孔、２０・・・・・・
ストッパ部材、３２・・・・・・予負荷ばね、３５・・
・・・・筒状部材、３６・・・・・・外向　　　　−き
フランジ（突部）、３７・・・・・・内向きフランジ−
（突部）、Ａ・・・・・・弁装置。The drawing is a side sectional view showing the overall structure of a booster which is an embodiment of this invention. 1...Boosting device, 6...Main body, 9...
...Hub member, 91... Rear part, 10.
...Movable wall, 11...Low pressure chamber, 12...
...High pressure chamber, 13...Inner hole, 15...
...Output shaft, 17...Plunger, 18...
...Input shaft, 19...hole, 20...
Stopper member, 32... Preload spring, 35...
...Cylindrical member, 36...Outward flange (protrusion), 37...Inward flange
(Protrusion), A... Valve device.

Claims (1)

【実用新案登録請求の範囲】 内部に空間を有する本体と、前記空間に移動可能に挿入
した可動壁と、該可動壁の前後に区画される低圧室およ
び高圧室と、前記可動壁を後方に付勢子る予負荷ばねと
、前記可動壁の一部をな〔、その後部分が前記本体を移
動可能に貫通して外部に突出する筒状のハブ部材と、該
ハブ部材の内孔に両側から各々嵌合する出力軸および入
力軸と、この両軸の間に入力軸と一体的に移動可能に２
　　配設したプランジャと、該プランジャに関連して設
けられ、前記低圧室と前記高圧室とに差圧を生じさせる
べく開閉する弁装置と、前記可動壁に前記ハブ部材の内
孔に連絡して設けた孔と、該孔に挿入され内端が前記プ
ランジャの移動範囲を限定すべく前記プランジャと係合
可能なストッパ部材とを備え、前記入力軸の前記可動壁
に対する相対的前進により、前記弁装置が差圧解消位置
から差圧保持位置を経て差圧発生位置に切り換わるよう
゛にした気圧式倍力装置において、前記ハブ部材の後方
部分の外周に、筒状部材を摺動自在に嵌合し、この筒状
部材の前端側に前記可動壁が戻り位置にあるとき前記本
体に当接可能な突部を、後端側に前記入力軸と当該入力
軸を前進させる方向に当接可能な突部を各々設けた気圧
式倍力装置。[Claims for Utility Model Registration] A main body having a space inside, a movable wall movably inserted into the space, a low-pressure chamber and a high-pressure chamber partitioned in front and behind the movable wall, and the movable wall extending rearwardly. a cylindrical hub member that forms a part of the movable wall and whose rear portion movably penetrates the main body and protrudes to the outside; An output shaft and an input shaft that fit together, and two shafts that can move integrally with the input shaft between these two shafts.
a plunger disposed therein; a valve device provided in association with the plunger that opens and closes to create a pressure difference between the low pressure chamber and the high pressure chamber; and a valve device connected to the movable wall and connected to the inner hole of the hub member. a stopper member which is inserted into the hole and whose inner end is engageable with the plunger to limit the movement range of the plunger, and when the input shaft advances relative to the movable wall, the valve In a pneumatic booster in which the device is configured to switch from a differential pressure eliminating position to a differential pressure holding position to a differential pressure generating position, a cylindrical member is slidably fitted to the outer periphery of the rear portion of the hub member. and a protrusion that can come into contact with the main body when the movable wall is in the return position on the front end side of the cylindrical member, and a protrusion that can come into contact with the input shaft in the direction of advancing the input shaft on the rear end side. A pneumatic booster with various protrusions.