GB1475645A - Brake pressure warning device - Google Patents

Brake pressure warning device

Info

Publication number
GB1475645A
GB1475645A GB2515475A GB2515475A GB1475645A GB 1475645 A GB1475645 A GB 1475645A GB 2515475 A GB2515475 A GB 2515475A GB 2515475 A GB2515475 A GB 2515475A GB 1475645 A GB1475645 A GB 1475645A
Authority
GB
United Kingdom
Prior art keywords
piston
movement
rear brakes
june
housing
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.)
Expired
Application number
GB2515475A
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
Publication of GB1475645A publication Critical patent/GB1475645A/en
Expired 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
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/26—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force characterised by producing differential braking between front and rear wheels
    • 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
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/18—Safety devices; Monitoring
    • B60T17/22—Devices for monitoring or checking brake systems; Signal devices
    • B60T17/226—Devices for monitoring or checking brake systems; Signal devices using devices being responsive to the difference between the fluid pressions in conduits of multiple braking systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Hydraulic Control Valves For Brake Systems (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)

Abstract

1475645 Pressure indicators AISIN SEIKI KK 12 June 1975 [14 June 1974] 25154/75 Heading G1L [Also in Division F2] A warning device for a motor vehicle hydraulic braking system lights a warning lamp 43 in response to a certain pressure differential across a stepped piston 25, mounted in a stepped bone 24 of a housing 12, caused by failure of any of hydraulic lines 17, 16 and 20 connecting tandem master cylinder 13 to front brakes 18 and rear brakes 19 respectively, or alternatively caused by sticking of a proportioning valve 11 incorporated into the housing 12. The pressure differential across piston 25 may cause movement thereof in either direction according to the cause whereupon a camming portion 39 of the piston 25 forces plunger 40 radially outwardly, with respect to the piston, into contact with metallic tube 42 mounted in insulating plug 41. Movement of piston 25 also causes flow of fluid from intermediate chamber 38 through chamber 32 to rear brakes 19 by-passing the proportioning valve 11 and applying full brake pressure to the rear brakes in the event of any malfunction. This is achieved by a sealing ring 30 at the smaller end of piston 25 moving out of a small bore 25 into either of large diameter bores 26 or 24 according to the direction of piston movement.
GB2515475A 1974-06-14 1975-06-12 Brake pressure warning device Expired GB1475645A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6843874A JPS5115769A (en) 1974-06-14 1974-06-14 Jidoshaniokeru seidoekiatsuijokoatsuhoshosochi

Publications (1)

Publication Number Publication Date
GB1475645A true GB1475645A (en) 1977-06-01

Family

ID=13373699

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2515475A Expired GB1475645A (en) 1974-06-14 1975-06-12 Brake pressure warning device

Country Status (2)

Country Link
JP (1) JPS5115769A (en)
GB (1) GB1475645A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5365574A (en) * 1976-11-22 1978-06-12 Jidosha Kiki Co Ltd Braking liquid pressure controlling device
JPS5753722Y2 (en) * 1977-04-13 1982-11-20
JPS5754454Y2 (en) * 1977-06-02 1982-11-25
JPS62177308U (en) * 1986-04-30 1987-11-11
JP2649796B2 (en) * 1986-12-26 1997-09-03 トッパン・ムーア 株式会社 Method for producing sustained-release microcapsules
US5330565A (en) * 1988-07-14 1994-07-19 Nippon Petrochemicals Company Limited Active agent-containing printing ink
JPH0437848Y2 (en) * 1989-12-08 1992-09-04

Also Published As

Publication number Publication date
JPS5326630B2 (en) 1978-08-03
JPS5115769A (en) 1976-02-07

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee