FR2296257A1 - Shock operated electric switch - has pendulous mass annular magnet and microswitch to release contactor - Google Patents

Shock operated electric switch - has pendulous mass annular magnet and microswitch to release contactor

Info

Publication number
FR2296257A1
FR2296257A1 FR7443152A FR7443152A FR2296257A1 FR 2296257 A1 FR2296257 A1 FR 2296257A1 FR 7443152 A FR7443152 A FR 7443152A FR 7443152 A FR7443152 A FR 7443152A FR 2296257 A1 FR2296257 A1 FR 2296257A1
Authority
FR
France
Prior art keywords
microswitch
electric switch
annular magnet
shock
operated electric
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
FR7443152A
Other languages
French (fr)
Other versions
FR2296257B1 (en
Inventor
Pierre Margrain
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.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR7443152A priority Critical patent/FR2296257A1/en
Publication of FR2296257A1 publication Critical patent/FR2296257A1/en
Application granted granted Critical
Publication of FR2296257B1 publication Critical patent/FR2296257B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/14—Switches operated by change of acceleration, e.g. by shock or vibration, inertia switch
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/14—Switches operated by change of acceleration, e.g. by shock or vibration, inertia switch
    • H01H35/141—Details
    • H01H35/143—Resetting means

Landscapes

  • Switches Operated By Changes In Physical Conditions (AREA)

Abstract

An electric switch, which operates when subjected to a mechanical shock, is used in motor vehicles to prevent fire or electrical damage when the vehicle has had an accident. The switch has an annular permanent magnet (2) in a nonmagnetic case (3), a magnetic material ball (4) suspended by a flexible rod (5), and a microswitch (6) whose actuator (7) is normally in contact with the ball (4). For a shock greater than a preset level, the ball (4) moves and releases the actuator (7). The microswitch then operates a contactor which in turn isolates the circuit to be protected from the electric source.
FR7443152A 1974-12-27 1974-12-27 Shock operated electric switch - has pendulous mass annular magnet and microswitch to release contactor Granted FR2296257A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7443152A FR2296257A1 (en) 1974-12-27 1974-12-27 Shock operated electric switch - has pendulous mass annular magnet and microswitch to release contactor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7443152A FR2296257A1 (en) 1974-12-27 1974-12-27 Shock operated electric switch - has pendulous mass annular magnet and microswitch to release contactor

Publications (2)

Publication Number Publication Date
FR2296257A1 true FR2296257A1 (en) 1976-07-23
FR2296257B1 FR2296257B1 (en) 1977-07-01

Family

ID=9146713

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7443152A Granted FR2296257A1 (en) 1974-12-27 1974-12-27 Shock operated electric switch - has pendulous mass annular magnet and microswitch to release contactor

Country Status (1)

Country Link
FR (1) FR2296257A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0066629A1 (en) * 1980-12-11 1982-12-15 Fanuc Ltd. Safety mechanism for industrial robot
EP0605101A1 (en) * 1992-11-27 1994-07-06 Alliedsignal Limited Acceleration switch

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2622163A (en) * 1949-06-07 1952-12-16 Dowty Equipment Ltd Electrical switch
FR1187122A (en) * 1957-11-04 1959-09-07 Inertia battery valve for vehicles
FR1213159A (en) * 1958-10-16 1960-03-29 Robertshaw Fulton Controls Co Improvements to acceleration response devices
CH432304A (en) * 1966-07-02 1967-03-15 Zanacca Sergio Shock sensitive alarm device
NL6702721A (en) * 1967-02-22 1968-08-23
FR1572544A (en) * 1968-05-16 1969-06-27
US3599745A (en) * 1969-07-28 1971-08-17 Benjamin F Hughes Gravity safety switch
FR2116154A5 (en) * 1970-11-28 1972-07-07 Tokai Rika Co Ltd

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2622163A (en) * 1949-06-07 1952-12-16 Dowty Equipment Ltd Electrical switch
FR1187122A (en) * 1957-11-04 1959-09-07 Inertia battery valve for vehicles
FR1213159A (en) * 1958-10-16 1960-03-29 Robertshaw Fulton Controls Co Improvements to acceleration response devices
CH432304A (en) * 1966-07-02 1967-03-15 Zanacca Sergio Shock sensitive alarm device
NL6702721A (en) * 1967-02-22 1968-08-23
FR1572544A (en) * 1968-05-16 1969-06-27
US3599745A (en) * 1969-07-28 1971-08-17 Benjamin F Hughes Gravity safety switch
FR2116154A5 (en) * 1970-11-28 1972-07-07 Tokai Rika Co Ltd

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0066629A1 (en) * 1980-12-11 1982-12-15 Fanuc Ltd. Safety mechanism for industrial robot
EP0066629A4 (en) * 1980-12-11 1983-04-06 Fanuc Ltd Safety mechanism for industrial robot.
EP0605101A1 (en) * 1992-11-27 1994-07-06 Alliedsignal Limited Acceleration switch

Also Published As

Publication number Publication date
FR2296257B1 (en) 1977-07-01

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse