| 摘要 |
PROBLEM TO BE SOLVED: To provide a rough micro-rotational driving device capable of micro-rotating a shaft body at small angular velocity.SOLUTION: A rough micro-rotational driving device includes a cylindrical installation part rotatably storing a shaft body having a disc-like rotary body 11, an annular rough rotational driving handle 31 connected to the rotary body via a first rotation transmission mechanism 21, and a micro-rotational driving handle 32 connected to the rotary body via a second rotation transmission mechanism 22. Both the mechanisms 21 and 22 are a mechanism via a gear device including a flexible annular gear 25 arranged via a ball bearing 24 around an elliptic rotary disc 23 connected to the handle 32 and two rigid annular gears having on inner peripheral surfaces teeth of meshing in a part with the gear 25, here, the tooth number of one gear A is the same as the tooth number of the gear 25 and the tooth number of the other gear B is more than the tooth number of the gear 25. The mechanism 21 connects the rotary body 11 and the handle 31 via the gear A, the gear 25 and the gear B, and the mechanism 22 connects the rotary body 11 and the handle 32 via the rotary disc 23, the gear 25 and the gear B. |
