| 摘要 |
PROBLEM TO BE SOLVED: To enable a long-term stable use by suppressing the entry of dust, or the like to the inside of a switch body, and by preventing deterioration in operability, failure, or the like in the operation of a switch. SOLUTION: An opening 32a exposes one portion of an operation knob 22 outward and allows the operation knob 22 to be rocked. The opening 32a is provided in a switch cover 32 disposed at the upper section of the switch body 23 incorporating a switching mechanism A1 and a detent B1. A vertically pierced through hole 23c is provided at the switch body 23 in a part communicating with the opening 32a. As a result, dust entering the opening 32a, or the like can be discharged outside. COPYRIGHT: (C)2006,JPO&NCIPI
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