| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent the wrong operation of a key in addition to the improvement in determination property of the key while keeping a conventional operation feeling. <P>SOLUTION: Single substrates 51a and 51b having operation keys 52a-52c arranged thereon are supported by key switch raising and lowering eccentric cams 55a-55d and 55a'-55d' which are paired across a shaft 56, respectively. Key elastic members 53a-53c are arranged as a finger pressure part on the upper surface of the operation keys 52a-52c, respectively, so as to be slightly protruded to an operation exterior part 54. The eccentric cam 55 is rotated, whereby the substrate 51 is raised to protrude the key elastic member 53 from the surface of the operation exterior part 54. <P>COPYRIGHT: (C)2004,JPO |
