| 摘要 |
PROBLEM TO BE SOLVED: To provide a key input device having one or a plurality of bumps on an upper surface of a key and including a key having a function that a switch under the key is turned on by pushing the bumps forward from a fixed position of the key and another switch is turned on by pushing the bumps backward. SOLUTION: The bumps (2) are provided on the upper surface of the key (1) and a supporting point (3), a switch A (4) and a switch B (5) are provided on a lower part of the key. COPYRIGHT: (C)2005,JPO&NCIPI
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