Patent ID: 11951613
Assignee: NABTESCO CORPORATION
Field: Handling (Mechanical engineering)
Classification: CPC B  F | IPC B

Claim 8:
9. A rotation mechanism, comprising:
a case;
an internal gear provided in the case and having internal teeth;
an oscillating gear having external teeth meshing with the internal teeth, the oscillating gear being configured to rotate oscillatorily;
a crankshaft having an eccentric portion that rotatably supports the oscillating gear and configured to transmit a rotational force of a drive source around an axis to the oscillating gear;
a carrier configured to receive the rotational force from the oscillating gear and serve as an output portion for output to a mating member;
a coupling member for coupling the mating member and the output portion by elastic deformation; and
an anti-rotation portion for preventing relative rotation between the mating member and the output portion,
wherein the coupling member and the output portion are integrally formed of resin,
wherein the coupling member includes:
an elastic deformation portion extending in an axial direction along the axis and capable of elastic deformation in a radial direction intersecting the axial direction; and
a claw portion provided at a distal end of the elastic deformation portion and projecting in the radial direction, and

wherein, in a state in which the coupling member couples the output portion and the mating member, the elastic deformation portion extends through a through portion formed in the mating member and extending along the axial direction, and the elastic deformation portion is in contact with an inner surface of the through portion.