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Waterproof switch apparatus for electronic device

  • US 5,258,592 A
  • Filed: 04/27/1992
  • Issued: 11/02/1993
  • Est. Priority Date: 05/24/1991
  • Status: Expired due to Fees
First Claim
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1. A waterproof switch apparatus for an electronic device, comprising:

  • a body having at least one through-hole formed therein;

    at least one push-button, disposed in said through-hole, having a head portion and a shaft portion, said head portion having a flange portion for preventing said push-button from coming out of said through-hole, said shaft portion having an annular groove, a tip of said shaft portion being adapted to open and close a switch contact when said push-button is actuated;

    a water sealing member made of an elastic material, said water sealing member having an inner peripheral portion fitted in said annular groove of said shaft portion of said push-button in close contact therewith and an outer peripheral portion; and

    a holding member, operatively associated with said body, for holding said outer peripheral portion of said water sealing member by pressing said outer portion against said body.

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