FR2260856A1 - Switch module for road surface installation - has three electrodes so flexing of electrical connection does not occur - Google Patents

Switch module for road surface installation - has three electrodes so flexing of electrical connection does not occur

Info

Publication number
FR2260856A1
FR2260856A1 FR7503989A FR7503989A FR2260856A1 FR 2260856 A1 FR2260856 A1 FR 2260856A1 FR 7503989 A FR7503989 A FR 7503989A FR 7503989 A FR7503989 A FR 7503989A FR 2260856 A1 FR2260856 A1 FR 2260856A1
Authority
FR
France
Prior art keywords
electrical connection
flexing
electrodes
occur
switch
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
FR7503989A
Other languages
French (fr)
Other versions
FR2260856B3 (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.)
PERADIN BONDED POLYMERS Ltd
Original Assignee
PERADIN BONDED POLYMERS 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 PERADIN BONDED POLYMERS Ltd filed Critical PERADIN BONDED POLYMERS Ltd
Publication of FR2260856A1 publication Critical patent/FR2260856A1/en
Application granted granted Critical
Publication of FR2260856B3 publication Critical patent/FR2260856B3/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/14—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for operation by a part of the human body other than the hand, e.g. by foot
    • H01H3/141—Cushion or mat switches
    • H01H3/142—Cushion or mat switches of the elongated strip type

Landscapes

  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Current-Collector Devices For Electrically Propelled Vehicles (AREA)

Abstract

The block is intened for sinking into road and bridge surfaces to monitor vehicle loading, wheelbase, traffic density and to operate traffic and pedestrian lights, by means of a built in switching mechanism. The design aims to overcome the problem of fatigue and rupture of the electrical connection to the moving element of an orthodox two electrode switch. To this end the pressure operated switch has three elements, two of which may lie side by side as the lower switch element and be connected in the switch circuit. The third element situated above these connects the two fixed elements and makes the circuit.
FR7503989A 1974-02-08 1975-02-07 Switch module for road surface installation - has three electrodes so flexing of electrical connection does not occur Granted FR2260856A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB588074 1974-02-08

Publications (2)

Publication Number Publication Date
FR2260856A1 true FR2260856A1 (en) 1975-09-05
FR2260856B3 FR2260856B3 (en) 1977-10-21

Family

ID=9804353

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7503989A Granted FR2260856A1 (en) 1974-02-08 1975-02-07 Switch module for road surface installation - has three electrodes so flexing of electrical connection does not occur

Country Status (3)

Country Link
ES (1) ES434561A1 (en)
FR (1) FR2260856A1 (en)
IT (1) IT1029667B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4716413A (en) * 1986-02-05 1987-12-29 Ernest Haile Drunk driver detection system
FR2653244A1 (en) * 1989-10-12 1991-04-19 Gen Electric Cgr Pressure-sensitive control handle
US5096329A (en) * 1990-12-10 1992-03-17 Ernest Haile Drunk driver detection system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4716413A (en) * 1986-02-05 1987-12-29 Ernest Haile Drunk driver detection system
FR2653244A1 (en) * 1989-10-12 1991-04-19 Gen Electric Cgr Pressure-sensitive control handle
US5096329A (en) * 1990-12-10 1992-03-17 Ernest Haile Drunk driver detection system

Also Published As

Publication number Publication date
IT1029667B (en) 1979-03-20
ES434561A1 (en) 1976-09-16
FR2260856B3 (en) 1977-10-21

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