| 摘要 |
PROBLEM TO BE SOLVED: To provide a gear device capable of reducing moment to work on a rotating shaft.SOLUTION: A gear device 1 includes one external gear 30 for meshing with an internal gear 80, and a rotating shaft 20 having an eccentric cam 22 for revolving the external gear 30 around a center axis J1. In the rotating shaft 20, an eccentric hole 24C is formed which has a center axis JE eccentric in the same direction as the eccentric direction of a center axis JD of the external gear 30 relative to a rotation center axis JR of the rotating shaft. |
