Elastomeric overlay with particular pushbutton profile to...

Details Elastomeric overlay with particular pushbutton profile to... Elastomeric overlay with particular pushbutton profile to...

H - Electricity

01

H

306/304

H01H 13/70 (2006.01) H01H 13/702 (2006.01)

Patent

CA 1231994

ABSTRACT OF THE DISCLOSURE A keyboard (61) is provided with rubber (silicone) buttons (64, 66) with collapsible webs (14) connecting the buttons to a base layer (10, 40, 60). A solid finger of rubber (20) underneath each button actuates a membrane switch (23) underneath the button. Additionally or alternatively a conductive member (52) can be attached to the end of the finger (20) to make two contacts (48, 50, 56, 58). The buttons and the finger can be of any suitable section, such as round, rectangular etc, and a variety of types of membrane switches can be used.

448470

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