| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a large key structure which does not use an arm bar and has excellent drip-proofness. <P>SOLUTION: In a key switch structure, a link mechanism is arranged which consists of a first link member 12 and a second link member 13 arranged between a key top 11 and a membrane sheet 17 and rotatably combined with each other. A first holder part 14 which rotatably holds one end of the first link member 12 and a second holder part 15 which is provided separately from the first holder part 14 and slidably holds one end of the second link member 13 are fixed to a back plate 18. The second link member 13 located inside the first link member 12 is formed in a plate shape. <P>COPYRIGHT: (C)2012,JPO&INPIT |
