| 摘要 |
PROBLEM TO BE SOLVED: To provide a driving unit capable of stabilizing the performance of an oscillatory type motor being a driving source while restraining a manufacturing cost from rising without lowering the transmission efficiency of rotation from the driving source to a rotation output member. SOLUTION: This driving unit is equipped with an operating physical force input ring 24 to which driving force from an operation member 9 is inputted, a driving force input ring 20 to which the driving force from the driving sources 12, 13 and 18 is inputted, and a planet roller 22 whose outer peripheral surface comes in contact with the rings 24 and 20; and provided with an output ring 21 to which the driving force is selectively transmitted through the roller 22. In such a case, the ring 21 is provided with a small-diameter roller 23 having a smaller outside diameter than the roller 22, whereby the eccentric-direction moving of the ring 24 to the ring 21 is regulated by the shaft-direction end faces of the rollers 22 and 23. |
