JPS565260A - Method and device for detecting leakage of hydraulic brake device - Google Patents

Method and device for detecting leakage of hydraulic brake device

Info

Publication number
JPS565260A
JPS565260A JP8012379A JP8012379A JPS565260A JP S565260 A JPS565260 A JP S565260A JP 8012379 A JP8012379 A JP 8012379A JP 8012379 A JP8012379 A JP 8012379A JP S565260 A JPS565260 A JP S565260A
Authority
JP
Japan
Prior art keywords
braking liquid
braking
leakage
electroinsulator
softened
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
JP8012379A
Other languages
Japanese (ja)
Inventor
Kuniichi Tsukuda
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP8012379A priority Critical patent/JPS565260A/en
Publication of JPS565260A publication Critical patent/JPS565260A/en
Pending legal-status Critical Current

Links

Landscapes

  • Valves And Accessory Devices For Braking Systems (AREA)

Abstract

PURPOSE: To enable the early detection of the leakage of a braking liquid by using as a leakage sensor a member of high electroconductivity coated with an electroinsulator which is characteristic of being softened and melted by the braking liquid.
CONSTITUTION: A member 1 of high electroconductivity coated with an electroinsulator 2 formed of a material which is softened and melted by a braking liquid, such as, for instance, barnish rosin ester in a shellac alcohol system, wax in a soybean oil system or varnish in a tar pitch naphtha system, is used as a leakage sensor 8, being fitted to a required place on a metal surface positioned in the middle of the course along which the leak of the braking liquid from a hydraulic cylinder device 10 reaches the frictional surface 11 of braking. And the sensor 8 is connected with an alarm device and a power source through a conductor 29, thereby an alarm and detection circuit being constituted. By this device, the sure and easy detection of the braking liquid leaking through between a piston 4 and a cylinder 6 turns to be possible.
COPYRIGHT: (C)1981,JPO&Japio
JP8012379A 1979-06-27 1979-06-27 Method and device for detecting leakage of hydraulic brake device Pending JPS565260A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8012379A JPS565260A (en) 1979-06-27 1979-06-27 Method and device for detecting leakage of hydraulic brake device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8012379A JPS565260A (en) 1979-06-27 1979-06-27 Method and device for detecting leakage of hydraulic brake device

Publications (1)

Publication Number Publication Date
JPS565260A true JPS565260A (en) 1981-01-20

Family

ID=13709423

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8012379A Pending JPS565260A (en) 1979-06-27 1979-06-27 Method and device for detecting leakage of hydraulic brake device

Country Status (1)

Country Link
JP (1) JPS565260A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100372421B1 (en) * 2000-10-16 2003-02-19 현대자동차주식회사 a brake system for vehicles

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5146190A (en) * 1974-10-18 1976-04-20 Nippon Kokan Kk Paipurainno roeikenchito kakusanboshihoho

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5146190A (en) * 1974-10-18 1976-04-20 Nippon Kokan Kk Paipurainno roeikenchito kakusanboshihoho

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100372421B1 (en) * 2000-10-16 2003-02-19 현대자동차주식회사 a brake system for vehicles

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