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US 5,258,592 AGranted
Waterproof switch apparatus for electronic device
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsKenichi Nishikawa, Takahiro Hayashi, Yoshimasa Kawabata
Life of this patent
Estimating the term…
Abstract
A waterproof switch apparatus for an electronic device comprises at least one push-button for switching, a sheet-like water sealing member groove-engaged with the shaft portion of the push-button, and a holding member for holding the water sealing member by pressing the outer peripheral portion of the water sealing member against the device body. An excellent waterproof feature and a thin shape of the waterproof switch apparatus can be obtained.
Claims8
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.
2 more elements
Dependencies are inferred from the claim text.