| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an operation switch mechanism for electronic equipment of a type that a tact switch is turned on/off through a stem part from a press part of an operation button formed of an elastic resin, resolving flaws (unclear switching of the tact switch and no feeling of clicking at a switching time) caused by buckling of the stem part without increasing the number of parts or the number of fabrication steps. <P>SOLUTION: Two color-molding is performed so that the hardness of stem parts 12a, 12b, 12c in operation buttons 9a, 9b, 9c is set to be higher than the other parts 10a, 10b, 10c/11a, 11b, 11c/13. For example, the hardness of the stem parts is set in the range from 80 to 90, and the hardness of the other parts is set in the range from 50 to 60. <P>COPYRIGHT: (C)2012,JPO&INPIT |
