| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a key switch device that can reduce a difference in switch characteristics between when a central part of a key top is pressed down and when an end part of the key top is pressed down. <P>SOLUTION: A key switch device comprises: a key top; a base plate 6; a pantagraph part 7 disposed between the key top and the base plate; and an energization mechanism to energize upward the key top. The pantagraph part comprises: an upper inside shaft member 11 and an upper outside shaft member 12; a lower inside shaft member 13 and a lower outside shaft member 14; a pair of inside link members 15; a pair of outside link members 16; and a pair of coupling pins 17 respectively inserted into an inside through hole and an outside through hole disposed adjacent to each other. All of the upper inside shaft member, the upper outside shaft member, the lower inside shaft member, the lower outside shaft member, the inside link members and the outside link members are formed of metal. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
