FR2395159A1 - Tyre pressure warning device - has pressure responsive magnet and springs to slide magnetic short circuiter to close contact and actuate warning - Google Patents

Tyre pressure warning device - has pressure responsive magnet and springs to slide magnetic short circuiter to close contact and actuate warning

Info

Publication number
FR2395159A1
FR2395159A1 FR7719074A FR7719074A FR2395159A1 FR 2395159 A1 FR2395159 A1 FR 2395159A1 FR 7719074 A FR7719074 A FR 7719074A FR 7719074 A FR7719074 A FR 7719074A FR 2395159 A1 FR2395159 A1 FR 2395159A1
Authority
FR
France
Prior art keywords
warning
pressure
magnet
springs
close contact
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.)
Granted
Application number
FR7719074A
Other languages
French (fr)
Other versions
FR2395159B1 (en
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.)
Renault SAS
Original Assignee
Renault SAS
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 Renault SAS filed Critical Renault SAS
Priority to FR7719074A priority Critical patent/FR2395159A1/en
Publication of FR2395159A1 publication Critical patent/FR2395159A1/en
Application granted granted Critical
Publication of FR2395159B1 publication Critical patent/FR2395159B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/02—Signalling devices actuated by tyre pressure
    • B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

The warning device has a pressure sensor, with a permanent magnet and a magnetic short circuit device(28) sensitive to tyre pressure. This works with a compression spring(34) under the magnet(27) force so that the magnet moves the short circuit, and a spring(37) works with the sensor(19) to increase distance between the magnet(27) and short circuit. The short circuit device slides in cylindrical slides(20)(30). It carries the spring(34) pressing on the body(16) of a container with a base(14) and cover(17). The sensor works with a fixed contact when pressure drops.
FR7719074A 1977-06-22 1977-06-22 Tyre pressure warning device - has pressure responsive magnet and springs to slide magnetic short circuiter to close contact and actuate warning Granted FR2395159A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7719074A FR2395159A1 (en) 1977-06-22 1977-06-22 Tyre pressure warning device - has pressure responsive magnet and springs to slide magnetic short circuiter to close contact and actuate warning

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7719074A FR2395159A1 (en) 1977-06-22 1977-06-22 Tyre pressure warning device - has pressure responsive magnet and springs to slide magnetic short circuiter to close contact and actuate warning

Publications (2)

Publication Number Publication Date
FR2395159A1 true FR2395159A1 (en) 1979-01-19
FR2395159B1 FR2395159B1 (en) 1980-11-28

Family

ID=9192392

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7719074A Granted FR2395159A1 (en) 1977-06-22 1977-06-22 Tyre pressure warning device - has pressure responsive magnet and springs to slide magnetic short circuiter to close contact and actuate warning

Country Status (1)

Country Link
FR (1) FR2395159A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2564783A1 (en) * 1984-05-26 1985-11-29 Porsche Ag MANOMETER ELEMENT ARRANGEMENT

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE560275A (en) * 1957-06-07
US4004271A (en) * 1974-12-13 1977-01-18 General Motors Corporation Low tire pressure warning system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE560275A (en) * 1957-06-07
US4004271A (en) * 1974-12-13 1977-01-18 General Motors Corporation Low tire pressure warning system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2564783A1 (en) * 1984-05-26 1985-11-29 Porsche Ag MANOMETER ELEMENT ARRANGEMENT

Also Published As

Publication number Publication date
FR2395159B1 (en) 1980-11-28

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Legal Events

Date Code Title Description
ST Notification of lapse