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JPS6358062U - - Google Patents

Info

Publication number
JPS6358062U
JPS6358062U JP1986153535U JP15353586U JPS6358062U JP S6358062 U JPS6358062 U JP S6358062U JP 1986153535 U JP1986153535 U JP 1986153535U JP 15353586 U JP15353586 U JP 15353586U JP S6358062 U JPS6358062 U JP S6358062U
Authority
JP
Japan
Prior art keywords
key
valve plunger
power piston
negative pressure
plunger
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP1986153535U
Other languages
English (en)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1986153535U priority Critical patent/JPS6358062U/ja
Priority to US07/104,955 priority patent/US4843948A/en
Publication of JPS6358062U publication Critical patent/JPS6358062U/ja
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/24—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
    • B60T13/46—Vacuum systems
    • B60T13/52—Vacuum systems indirect, i.e. vacuum booster units
    • B60T13/57—Vacuum systems indirect, i.e. vacuum booster units characterised by constructional features of control valves

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Braking Systems And Boosters (AREA)

Description

【図面の簡単な説明】
第１図は本考案の一実施例を示した断面図、第
２図は第１図におけるＡ―Ａ断面図、第３図はキ
ーの側面図である。 １０……負圧式倍力装置、１１……フロントシ
エル、１２……リヤシエル、１３……ダイアフラ
ム、１４……パワープレート、１５……パワーピ
ストン、１５ｂ……内孔、１８……定圧室、１９
……変圧室、２１……プツシユロツド、２２……
バルブプランジヤ、２３……コントロールバルブ
、２８……環状溝、２９……キー、２９ａ……二
又部、２９ｂ……延長部、２９ｃ……基部、３０
……孔、３３……切欠き部、３４……弾性部材、
Ｖ……バルブ機構。

Claims (1)

    【実用新案登録請求の範囲】
  1. ブレーキペダルに連動するプツシユロツドの移
    動により軸方向へ摺動するバルブプランジヤをパ
    ワーピストンの内孔内に設け、該バルブプランジ
    ヤを内蔵するパワーピストンに設けられた径方向
    の孔に前記バルブプランジヤの環状溝に中央部の
    二又部が該バルブプランジヤを挾むように挿入さ
    れるとキーを有し、作動休止時にはハウジングに
    該キーの基部が当接して、前記プランジヤが前記
    パワーピストンに対し、所定量以上後退しないよ
    うにした負圧式倍力装置において、前記キーの二
    又部を上方に延長し、該延長部及び前記基部の外
    側に切欠き部を夫々設け、該両切欠き部に弾性部
    材を嵌着させて前記キーの抜け落ちを防止するこ
    とを特徴とする負圧式倍力装置。
JP1986153535U 1986-10-06 1986-10-06 Pending JPS6358062U (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP1986153535U JPS6358062U (ja) 1986-10-06 1986-10-06
US07/104,955 US4843948A (en) 1986-10-06 1987-10-06 Vacuum-operated brake booster with a key and retainer therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1986153535U JPS6358062U (ja) 1986-10-06 1986-10-06

Publications (1)

Publication Number Publication Date
JPS6358062U true JPS6358062U (ja) 1988-04-18

Family

ID=15564640

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1986153535U Pending JPS6358062U (ja) 1986-10-06 1986-10-06

Country Status (2)

Country Link
US (1) US4843948A (ja)
JP (1) JPS6358062U (ja)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0722369Y2 (ja) * 1987-10-30 1995-05-24 自動車機器株式会社 ブレ−キ倍力装置
GB8920588D0 (en) * 1989-09-12 1989-10-25 Lucas Ind Plc Improvements relating to a vacuum servo unit for use in traction control
JP2650214B2 (ja) * 1988-12-20 1997-09-03 自動車機器株式会社 負圧倍力装置
US4953446A (en) * 1989-08-14 1990-09-04 Allied-Signal Inc. Key member for retaining a control valve in a hub
DE19506453A1 (de) * 1995-02-24 1996-08-29 Mann & Hummel Filter Anzeigevorrichtung zur Anzeige des Unterdrucks
FR2819769B1 (fr) * 2001-01-23 2003-04-11 Delphi Tech Inc Servomoteur d'assistance avec un mecanisme de valve simplifie et mecanisme de valve correspondant
FR2847540B1 (fr) * 2002-11-22 2005-02-25 Bosch Sist De Frenado Sl Procede de reglage de la course morte d'un ensemble maitre-cylindre et servomoteur d'assistance pneumatique dans un dispositif de freinage
DE102006016545B3 (de) * 2006-04-07 2007-05-16 Lucas Automotive Gmbh Bremskraftverstärkungseinrichtung mit Dämpfungselement
CN101758825B (zh) * 2008-12-25 2012-12-19 比亚迪股份有限公司 真空助力器的输出力推杆安装方法及该方法的执行机构

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51116392U (ja) * 1975-03-14 1976-09-21
JPS5689754U (ja) * 1979-12-14 1981-07-17
JPS56149248A (en) * 1980-04-21 1981-11-19 Jidosha Kiki Co Ltd Valve mechanism controller for brake booster
DE3019558A1 (de) * 1980-05-22 1981-11-26 Alfred Teves Gmbh, 6000 Frankfurt Mechanisch gesteuerter kraftverstaerker, insbesondere fuer bremsanlagen von kraftfahrzeugen
US4487105A (en) * 1980-11-10 1984-12-11 The Bendix Corporation Four position control valve for a pneumatically operated servomotor
JPS6233651Y2 (ja) * 1981-03-30 1987-08-28
US4587885A (en) * 1983-09-09 1986-05-13 Itt Industries, Inc. Vacuum-operated brake power booster
DE3337894A1 (de) * 1983-10-19 1985-05-09 Alfred Teves Gmbh, 6000 Frankfurt Vakuumbetriebener bremskraftverstaerker
JPS60108582U (ja) * 1983-12-28 1985-07-23 自動車機器株式会社 ブレ−キ倍力装置
FR2559725B1 (fr) * 1984-02-22 1986-12-05 Dba Servomoteur d'assistance au freinage
JPH107945A (ja) * 1996-06-28 1998-01-13 Hitachi Chem Co Ltd 防汚塗料組成物

Also Published As

Publication number Publication date
US4843948A (en) 1989-07-04

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