Patent ID: 7012206
Filing Date: 2006-03-14
Classification: H01H

Abstract:
1. A keyboard comprising: a first frame having a generally rectangular planer shape for supporting a plurality of keytops; a circuit support supporting a corresponding plurality of key contacts and connecting circuits for said corresponding plurality of key contacts; a second frame having a planer shape corresponding to the planer shape of said first frame and constituting a base for supporting said circuit support; a waterproof layer intervening between said circuit support and said first frame, when supported by said second frame, to seal said circuit support in cooperation with said second frame; an elongate elastic member pressing said waterproof layer against an edge portion of said second frame; and a fastener for fastening said first frame and said second frame to each other; said waterproof layer being made of a flexible synthetic resin, said fastener pressing said first frame and said second frame against each other with said elongate elastic member intervening between said first frame and said second frame to thereby cause said waterproof layer and said second frame to seal said circuit support, whereby said circuit support is protected from dust and moisture.