JPS5671661A - Brake booster for automobile - Google Patents

Brake booster for automobile

Info

Publication number
JPS5671661A
JPS5671661A JP14589679A JP14589679A JPS5671661A JP S5671661 A JPS5671661 A JP S5671661A JP 14589679 A JP14589679 A JP 14589679A JP 14589679 A JP14589679 A JP 14589679A JP S5671661 A JPS5671661 A JP S5671661A
Authority
JP
Japan
Prior art keywords
pressure plate
transmission member
braking
piston
air valve
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
JP14589679A
Other languages
Japanese (ja)
Inventor
Yoichi Furuta
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aisin Corp
Original Assignee
Aisin Seiki Co Ltd
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 by Aisin Seiki Co Ltd filed Critical Aisin Seiki Co Ltd
Priority to JP14589679A priority Critical patent/JPS5671661A/en
Priority to FR8023913A priority patent/FR2469590A1/en
Priority to DE19803042095 priority patent/DE3042095A1/en
Priority to GB8035833A priority patent/GB2063404A/en
Publication of JPS5671661A publication Critical patent/JPS5671661A/en
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)

Abstract

PURPOSE: To prevent fatigue and early breakage of a pressure plate due to a repeated stress resulting from the repetition of braking, by a method wherein a differential of a transmission member to a piston is reduced in comparison with a differential of an air valve to the piston.
CONSTITUTION: Even if the air valve 11 moves widely backward to the right resulting from the operation of the valve when braking is released, the backward movement of the transmission member 30 located between the air valve 11 and the pressure plate 29 is limited to a small distance C by means of a toroidal stepped part 26b. That is, the backward stroke of the transmission member 30 toward the piston is short. Thus, a large deformation is not produced between a part where the pressure plate 29 contacts the transmission member 30 and a part where said part contacts a stepped part 26c of an outer circumference. This permits the protection of the fatigue and the early breakage of the pressure plate 29 due to a repeated stress resulting from the repetition of braking.
COPYRIGHT: (C)1981,JPO&Japio
JP14589679A 1979-11-09 1979-11-09 Brake booster for automobile Pending JPS5671661A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP14589679A JPS5671661A (en) 1979-11-09 1979-11-09 Brake booster for automobile
FR8023913A FR2469590A1 (en) 1979-11-09 1980-11-07 SERVOMOTOR, PARTICULARLY FOR MOTOR VEHICLE BRAKING CIRCUIT
DE19803042095 DE3042095A1 (en) 1979-11-09 1980-11-07 FLUID PRESSURE ACTUATED SERVOMOTOR
GB8035833A GB2063404A (en) 1979-11-09 1980-11-07 Brake Booster Assemblies

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14589679A JPS5671661A (en) 1979-11-09 1979-11-09 Brake booster for automobile

Publications (1)

Publication Number Publication Date
JPS5671661A true JPS5671661A (en) 1981-06-15

Family

ID=15395550

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14589679A Pending JPS5671661A (en) 1979-11-09 1979-11-09 Brake booster for automobile

Country Status (4)

Country Link
JP (1) JPS5671661A (en)
DE (1) DE3042095A1 (en)
FR (1) FR2469590A1 (en)
GB (1) GB2063404A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5999859U (en) * 1982-12-25 1984-07-05 三輪精機株式会社 Pressure converter/brake device
JPS59146266A (en) * 1983-02-09 1984-08-22 Hitachi Ltd Coding and decoding device

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5845379B2 (en) * 1979-11-09 1983-10-08 アイシン精機株式会社 Automotive brake booster
JPS5689754U (en) * 1979-12-14 1981-07-17
DE3406520A1 (en) * 1984-02-23 1985-08-29 Alfred Teves Gmbh, 6000 Frankfurt VACUUM-POWERED BRAKE-AMPLIFIER

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53152081U (en) * 1977-05-06 1978-11-30
JPS5945537B2 (en) * 1978-10-31 1984-11-07 日信工業株式会社 Negative pressure booster
JPS5851505B2 (en) * 1979-02-02 1983-11-16 日信工業株式会社 Negative pressure booster

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5999859U (en) * 1982-12-25 1984-07-05 三輪精機株式会社 Pressure converter/brake device
JPS6243881Y2 (en) * 1982-12-25 1987-11-16
JPS59146266A (en) * 1983-02-09 1984-08-22 Hitachi Ltd Coding and decoding device
JPH0554303B2 (en) * 1983-02-09 1993-08-12 Hitachi Ltd

Also Published As

Publication number Publication date
GB2063404A (en) 1981-06-03
DE3042095A1 (en) 1981-06-04
FR2469590A1 (en) 1981-05-22
FR2469590B1 (en) 1983-11-18

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