| 摘要 |
PROBLEM TO BE SOLVED: To provide a drive unit which enables the locking of a mobile member at the specified position. SOLUTION: In a mechanism which drives the oscillation of the mobile member 81A cantilever supported with an oscillatory shaft 812 within a decoration member 6B, a Geneva mechanism 80 is constituted of the first rotary element 83 to which a power is transmitted from a drive motor 84a and the second rotary element 82 connected to the side of the oscillatory shaft 812 and the second rotary element 82 is operated following the first rotary element 83. At the standby position, the relative position of the first and second rotary elements 83 and 82 is selected so as to get the motion of the second rotary element 82 locked thereby locking the mobile member 81A. COPYRIGHT: (C)2008,JPO&INPIT |
