JPS63108857U - - Google Patents

Info

Publication number
JPS63108857U
JPS63108857U JP52087U JP52087U JPS63108857U JP S63108857 U JPS63108857 U JP S63108857U JP 52087 U JP52087 U JP 52087U JP 52087 U JP52087 U JP 52087U JP S63108857 U JPS63108857 U JP S63108857U
Authority
JP
Japan
Prior art keywords
booster
booster piston
retaining flange
piston
negative pressure
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.)
Granted
Application number
JP52087U
Other languages
Japanese (ja)
Other versions
JP2530333Y2 (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 JP1987000520U priority Critical patent/JP2530333Y2/en
Priority to KR2019870021312U priority patent/KR900007774Y1/en
Priority to US07/137,297 priority patent/US4821623A/en
Publication of JPS63108857U publication Critical patent/JPS63108857U/ja
Application granted granted Critical
Publication of JP2530333Y2 publication Critical patent/JP2530333Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Braking Systems And Boosters (AREA)

Description

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

図面は本考案の一実施例を示し、第１図は全体
の縦断面図で、第２図―線断面に相当し、第
２図は第１図―矢視図、第３図は第２図―
線断面図、第４図はブースタピストンに対する
弁筒の組付け部分の拡大縦断面図で、ａはブース
タピストンが撓む前の状態を、ｂはブースタピス
トンが撓んだ状態をそれぞれ示す。 Ａ，Ｂ…第１、第２作動室、ａ…後面、ｂ…前
面、１…ブースタシエル、２…ブースタピストン
、６…制御弁、１２…弁筒、３８…弁筒嵌入孔、
４０…抜止めフランジ、４３１，４３２…第１、
第２係止爪、４６…挟止板、５９…補強リブ。 The drawings show one embodiment of the present invention, FIG. 1 is a longitudinal sectional view of the whole, FIG. 2 corresponds to a line cross section, FIG. 2 is a view taken from FIG. figure-
The line sectional view and FIG. 4 are enlarged longitudinal sectional views of the part where the valve cylinder is assembled to the booster piston, where a shows the state before the booster piston is bent, and b shows the state where the booster piston is bent. A, B...first and second working chambers, a...rear surface, b...front surface, 1...booster shell, 2...booster piston, 6...control valve, 12...valve cylinder, 38...valve cylinder insertion hole,
40... retaining flange, 43 1 , 43 2 ... first,
Second locking claw, 46...Pinch plate, 59...Reinforcement rib.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ブースタシエルと；該ブースタシエル内を負圧
源に連なる第１作動室と、制御弁を介して該第１
作動室または大気に選択的に連通される第２作動
室とに区画すべく、前記ブースタシエル内に前後
往復動自在に収容されるブースタピストンと；該
ブースタピストンの中心に存する弁筒嵌入孔に嵌
合されて抜止めフランジを該ブースタピストン前
面に重合した制御弁用弁筒と；前記抜止めフラン
ジを前記ブースタピストンと協働して挟止すべく
、該ブースタピストンの複数の係止爪に弾性係合
する挟止板と；を備えた負圧式倍力装置において
、前記ブースタピストンに、前方へ突出して前記
抜止めフランジの後面外周部に当接する横断面円
弧状の補強リブを設け、前記ブースタピストンの
前方への撓みに伴う前記補強リブの変形により、
前記抜止めフランジに対する該補強リブの当接面
積が該ブースタピストンの半径方向外方へ広がる
ようにしたことを特徴とする負圧式倍力装置。 a booster shell; a first working chamber connected to a negative pressure source within the booster shell;
a booster piston housed in the booster shell so as to be able to reciprocate back and forth so as to be partitioned into a working chamber or a second working chamber that selectively communicates with the atmosphere; A control valve valve cylinder which is fitted and has a retaining flange superimposed on the front surface of the booster piston; and a plurality of locking pawls of the booster piston to clamp the retaining flange in cooperation with the booster piston. In the negative pressure booster, the booster piston is provided with a reinforcing rib having an arcuate cross section and projecting forward and abutting against the rear outer circumference of the retaining flange; Due to the deformation of the reinforcing ribs due to the forward deflection of the booster piston,
A negative pressure booster characterized in that a contact area of the reinforcing rib with the retaining flange expands outward in a radial direction of the booster piston.
JP1987000520U 1987-01-06 1987-01-06 Negative pressure booster Expired - Lifetime JP2530333Y2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP1987000520U JP2530333Y2 (en) 1987-01-06 1987-01-06 Negative pressure booster
KR2019870021312U KR900007774Y1 (en) 1987-01-06 1987-12-02 Vacuum tape booster
US07/137,297 US4821623A (en) 1987-01-06 1987-12-22 Vacuum type booster

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987000520U JP2530333Y2 (en) 1987-01-06 1987-01-06 Negative pressure booster

Publications (2)

Publication Number Publication Date
JPS63108857U true JPS63108857U (en) 1988-07-13
JP2530333Y2 JP2530333Y2 (en) 1997-03-26

Family

ID=30777564

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987000520U Expired - Lifetime JP2530333Y2 (en) 1987-01-06 1987-01-06 Negative pressure booster

Country Status (1)

Country Link
JP (1) JP2530333Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0337073U (en) * 1989-08-23 1991-04-10

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5861670U (en) * 1981-10-21 1983-04-26 住友電気工業株式会社 Silencer/filter support structure for vacuum booster
JPS6067251A (en) * 1983-09-24 1985-04-17 Nissin Kogyo Kk Negative-pressure type booster
JPS6067248A (en) * 1983-09-24 1985-04-17 Nissin Kogyo Kk Negative-pressure type booster

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5861670U (en) * 1981-10-21 1983-04-26 住友電気工業株式会社 Silencer/filter support structure for vacuum booster
JPS6067251A (en) * 1983-09-24 1985-04-17 Nissin Kogyo Kk Negative-pressure type booster
JPS6067248A (en) * 1983-09-24 1985-04-17 Nissin Kogyo Kk Negative-pressure type booster

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0337073U (en) * 1989-08-23 1991-04-10

Also Published As

Publication number Publication date
JP2530333Y2 (en) 1997-03-26

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