| 摘要 |
PROBLEM TO BE SOLVED: To effectively protect a reduction gear itself by a simple configuration prior to assembling into a master machine of the reduction gear, in the eccentric swing reduction gear not having a so-called main bearing.SOLUTION: In an eccentric swing reduction gear which has an internal gear 52 configuring an internal tooth with a cylindrical outer pin 52C and external gears 50A, 50B internally contacting and meshing with the internal gear 52, and extracts the relative rotation of the external gears 50A, 50B with the internal gear 52 as the relative rotation of a casing 54 integrated with the internal gear 52 with carriers 59 (56, 58), the main bearing is not disposed between the casing 54 and the carriers 59 but disposed at the casing 54, and there are provided restriction members 84, 85 which have outer pin restricting portions 84A, 85A restricting an outer pin 52C from moving in the axial direction, whereby the restriction members 84, 85 extend from the outer pin restricting portions 84A, 85A to the inside of the radial direction and have external gear restricting portions 84B, 85B which restrict the external gears 50A, 50B from moving in the axial direction. |
