JPS568524A - Filament burn-out of stop lamp and detector for brake pad abrasion - Google Patents

Filament burn-out of stop lamp and detector for brake pad abrasion

Info

Publication number
JPS568524A
JPS568524A JP8257779A JP8257779A JPS568524A JP S568524 A JPS568524 A JP S568524A JP 8257779 A JP8257779 A JP 8257779A JP 8257779 A JP8257779 A JP 8257779A JP S568524 A JPS568524 A JP S568524A
Authority
JP
Japan
Prior art keywords
abrasion
lamp
component
fiber
light
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
JP8257779A
Other languages
Japanese (ja)
Inventor
Yoshikazu Nishiwaki
Koichi Tsuno
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
Priority to JP8257779A priority Critical patent/JPS568524A/en
Publication of JPS568524A publication Critical patent/JPS568524A/en
Pending legal-status Critical Current

Links

Landscapes

  • Length Measuring Devices By Optical Means (AREA)

Abstract

PURPOSE: To enhance the safety by making the mechanism to confirm the lighting of the stop lamp double the mechanism to detect the amount of abrasion of the braking component, by using the optical fiber.
CONSTITUTION: Optical fiber 10 is buried into braking component 13 with a certain depth secured from the abrasion surface and in the course of the transmission line formed by fiber 10. The light of stop lamp 12 is sent to display unit 15 through fiber 10 for emission as long as the abrasion of component 13 does not reach the limit point of burying. Thus the assuredness of the braking action can be confirmed. When the abrasion progresses to cause the disconnection of fiber 10, the light of lamp 12 does not reach unit 15 although lamp 12 may glow at brake working time. Thus no light is emitted from unit 15 to detect that component 13 is worn out exceeding the limit of abrasion. In case the filament of lamp 12 is burnt out, unit 15 has no light emission at the brake working time althrough the abrasion of component 13 is not so much. Thus the filament burn-out can be detected for the lamp.
COPYRIGHT: (C)1981,JPO&Japio
JP8257779A 1979-07-02 1979-07-02 Filament burn-out of stop lamp and detector for brake pad abrasion Pending JPS568524A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8257779A JPS568524A (en) 1979-07-02 1979-07-02 Filament burn-out of stop lamp and detector for brake pad abrasion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8257779A JPS568524A (en) 1979-07-02 1979-07-02 Filament burn-out of stop lamp and detector for brake pad abrasion

Publications (1)

Publication Number Publication Date
JPS568524A true JPS568524A (en) 1981-01-28

Family

ID=13778333

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8257779A Pending JPS568524A (en) 1979-07-02 1979-07-02 Filament burn-out of stop lamp and detector for brake pad abrasion

Country Status (1)

Country Link
JP (1) JPS568524A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62163708U (en) * 1986-04-07 1987-10-17
US4884434A (en) * 1986-08-29 1989-12-05 Mitsubishi Cable Industries, Ltd. Wear sensor
US5015859A (en) * 1989-09-25 1991-05-14 General Electric Company Method and apparatus for detecting wear

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62163708U (en) * 1986-04-07 1987-10-17
US4884434A (en) * 1986-08-29 1989-12-05 Mitsubishi Cable Industries, Ltd. Wear sensor
US5015859A (en) * 1989-09-25 1991-05-14 General Electric Company Method and apparatus for detecting wear

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