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Touch panel mechanism

  • US 4,228,330 A
  • Filed: 07/10/1978
  • Issued: 10/14/1980
  • Est. Priority Date: 07/10/1978
  • Status: Expired due to Term
First Claim
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1. In a touch panel switch device having switch contactors positioned on a flexible, non-conductive surface aligned with respective switch contacts positioned on an opposite non-conductive surface to provide a plurality of switch contact positions, said flexible surface being depressable to enable engagement between a respective contactor and contact, the improvement comprising:

  • a non-conductive spacer intermediate said surfaces including apertures therein extending over more than one of said switch contact positions; and

    a thin metal sheet overlying and immediately adjacent said flexible, non-conductive surface, said metal sheet being depressable at a switch contact position to depress said non-conductive surface and only enable engagement of the respective contactor and contact associated therewith wherein the thickness of said non-conductive spacer and the stiffness of said thin metal sheet combine to provide said touch panel switch device with the hard tactile feel characteristic of glass-capacitive touch panels.

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