Dome switch
AssigneeYazaki Corporation
InventorsKenichiro Kawaguchi, Minoru Kubota, Seiji Mori
Life of this patent
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Abstract
A compact, thinned and water-tightened combined switch, is structured by a single switch comprising a front sheet having a domed projection which can be reversed to the back side and is provided at the back side with an electrode, an electric circuit body having an electric contact to contact with the electrode and a domed convex portion provided in the vicinity of the center of the domed projection. In operation process, firstly the projection is reversed and an electrode provided near the periphery of the convex portion contacts with the electric contact on the electric circuit body and secondly an electrode provided in the vicinity of the center of the domed convex portion contacts with the electric contact on the electric circuit body.
Claims20
A dome switch including a single switch comprising:
- a front sheet having a domed projection projecting outside, being reversible and provided with an electrode at a back side;
- an electric circuit body having an electric contact to contact with said electrode provided on said domed projection when said domed projection is reversed;
- and,
- a domed convex portion provided in a vicinity of a center of said domed projection, wherein, in a process of pushing said convex portion, said projection is reversed and said electrode provided near a periphery of said convex portion at the back side of said front sheet is brought into contact with said electric contact provided on said electric circuit body and a center electrode provided in a vicinity of a center of said domed convex portion at said back side of said front sheet is brought into contact with said electric contact provided on said electric circuit body.
Dependencies are inferred from the claim text.