| 摘要 |
PURPOSE: To prevent generation of a sliding sound of the tips of elastic arms provided on a push button, and a holding surface, when the push button provided an manual a operating device is pushed. CONSTITUTION: On a push button 21, a manual operating projection 21b to operate a switch is formed. On the push button 21, a pair of elastic arms 51a and 51b formed inλform is provided, and their tips 51c and 51b hit the holding surface 33a at the front side of a holding plate 33. When the push button 21 is pushed, the tips 51c and 51d slide the holding surface 33a, but small projections A are formed on the tips 51c and 51d, and a minute unevenness is formed on the holding surface 33a. And when the elastic arms 51a and 51b are slided, the small projections A and the minute unevenness are to be slided, and a sliding in a closely adhering condition can be prevented, so ass to prevent generation of a sliding sound.
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