GB1535300A - Warning system for indicating excessive wear in a frictional wear member - Google Patents

Warning system for indicating excessive wear in a frictional wear member

Info

Publication number
GB1535300A
GB1535300A GB2062576A GB2062576A GB1535300A GB 1535300 A GB1535300 A GB 1535300A GB 2062576 A GB2062576 A GB 2062576A GB 2062576 A GB2062576 A GB 2062576A GB 1535300 A GB1535300 A GB 1535300A
Authority
GB
United Kingdom
Prior art keywords
wear
lamp
broken
pad
warning system
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
GB2062576A
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries 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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Publication of GB1535300A publication Critical patent/GB1535300A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
    • F16D66/02—Apparatus for indicating wear
    • F16D66/021—Apparatus for indicating wear using electrical detection or indication means
    • F16D66/026—Apparatus for indicating wear using electrical detection or indication means indicating different degrees of lining wear
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
    • F16D66/02—Apparatus for indicating wear
    • F16D66/021—Apparatus for indicating wear using electrical detection or indication means
    • F16D66/022—Apparatus for indicating wear using electrical detection or indication means indicating that a lining is worn to minimum allowable thickness

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Abstract

1535300 Brake-lining wear-indicators SUMITOMO ELECTRIC INDUSTRIES Ltd 19 May 1976 [17 Sept 1975] 20625/76 Heading F2E A silicon-controlled rectifier 7 is connected in series with a lamp 6 across a battery 5; a voltage-divider 11, 10 in parallel with the S.C.R. has its junction connected to the gate terminal of the S.C.R. An insulated wire loop circuit 4 having its end 3 embedded at a level 2 in a frictional brake pad 1 normally shortcircuits the resistance 10, so the S.C.R. is switched off. When, owing to wear of the pad 1, the loop end 3 is broken, the short-circuiting is broken, so the S.C.R. is turned on, and lamp 6 lights. The properties of the S.C.R. ensure that the lamp remains alight, even if the broken parts of loop end 3 should be re-connected (e.g. by contact with the rotary member associated with the pad 1).
GB2062576A 1975-09-17 1976-05-19 Warning system for indicating excessive wear in a frictional wear member Expired GB1535300A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12826875U JPS5241481U (en) 1975-09-17 1975-09-17

Publications (1)

Publication Number Publication Date
GB1535300A true GB1535300A (en) 1978-12-13

Family

ID=14980623

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2062576A Expired GB1535300A (en) 1975-09-17 1976-05-19 Warning system for indicating excessive wear in a frictional wear member

Country Status (3)

Country Link
JP (1) JPS5241481U (en)
DE (1) DE2632183A1 (en)
GB (1) GB1535300A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2292429A (en) * 1994-08-10 1996-02-21 Ferodo Ltd Brake wear indicator

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19845091A1 (en) * 1998-09-30 2000-04-06 Volkswagen Ag Arrangement for determining thickness of wearing coating, esp. vehicle brake or clutch lining, has electric circuit that displays pre-warning signal when wire loop starts to wear through
DE102009013290B4 (en) * 2009-03-14 2017-03-16 Audi Ag Brake device with a worn brake pad
CN106641047A (en) * 2016-12-30 2017-05-10 重庆樽明汽车零部件有限公司 Brake pad with pre-warning device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3675197A (en) * 1970-06-26 1972-07-04 Gen Motors Corp Brake lining wear sensing circuit
JPS4997164A (en) * 1973-01-26 1974-09-13

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2292429A (en) * 1994-08-10 1996-02-21 Ferodo Ltd Brake wear indicator
GB2292429B (en) * 1994-08-10 1998-07-29 Ferodo Ltd Brake wear indicator

Also Published As

Publication number Publication date
JPS5241481U (en) 1977-03-24
DE2632183A1 (en) 1977-03-24

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Legal Events

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