Keyboard switch with pivotal actuator lever

Details Keyboard switch with pivotal actuator lever Keyboard switch with pivotal actuator lever

H - Electricity

01

H

340/187, 306/299

H01H 5/08 (2006.01) B41J 5/26 (2006.01)

Patent

CA 1213927

KEYBOARD SWITCH WITH PIVOTAL ACTUATOR LEVER ABSTRACT OF THE DISCLOSURE A keyboard switch which is used in combination with a membrane switch array includes a housing adapted to be posi- tioned on the membrane switch array. There is an upright opening in the housing and a plunger is reciprocal in the housing opening. There is a spring urging said plunger outwardly in said opening and there is an actuator lever pivotally mounted on said housing and positioned for engagement by said plunger. Inward movement of said plunger through a given distance causes the application of a switch closing force by said lever on the underlying switch array. The geometry of the actuator lever-plunger interface can be arranged for linear application of the switch closing force or sudden application of said force. Sudden application of the switch closing force provides a tactile feedback.

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