| 摘要 |
PROBLEM TO BE SOLVED: To simplify the structure of an apparatus without installing a detaching mechanism and to lighten a manual operation without getting an operational electric motor generated, when operated in manual. SOLUTION: An electric motor and a speed reducer to reduce motor's revolutions with high reduction ratio are installed on the floor 9 opposite to a main circuit. A moving body 14 consists of a worm wheel 12, which is fitted at the output of the speed reducer, and a worm which engages with the worm wheel and moves to the same direction as an apparatus by the revolution of the worm wheel 12. A connector 16 is fitted on the tip of the moving body 14 and is docked with the handle 10 of the above apparatus. The moving body 14 has a connecting portion 20 at a rear end and a mannual operation handle can be freely fixed there. When the handle fixed at the connecting portion 20 is revolved, the worm wheel 12 can not be revolved because of the drag of rotations with the high reduction ratio. Therefore the worm wheel functions as an interal thread and the moving body 14 travels as the same direction as the apparatus. |
