Multiple detent membrane switch

Details Multiple detent membrane switch Multiple detent membrane switch

H - Electricity

01

H

H01H 13/50 (2006.01) H01H 13/64 (2006.01) H01H 13/702 (2006.01)

Patent

CA 2230798

An improved membrane switch includes multiple detents. A pair of electric circuits are completed by the membrane switch, and a pair of flexing portions are located on said membrane. A first flexing portion is overcome by a first lower insertion force to allow a first circuit to be complete, and a second flexing portion is only overcome by further insertion force. The second flexing portion is eventually overcome and completes a second circuit. The inventive membrane switch provides the operator with a clear indication and a detent feel for each of the two circuits.

L'invention concerne un interrupteur à membrane comprenant des détentes multiples. Une paire de circuits électriques est fermée par l'interrupteur à membrane, et une paire de parties souples est prévue sur ladite membrane. Une première partie souple est neutralisée par une première force d'insertion inférieure de sorte qu'un premier circuit soit fermé, et une seconde partie souple est seulement neutralisée par une autre force d'insertion. Ladite seconde partie souple est finalement neutralisé et ferme un second circuit. L'interrupteur à membrane de l'invention permet à l'opérateur d'avoir des indications claires et de sentir la détente pour chacun des deux circuits.

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