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

Claim 0:
1. A rotation mechanism, comprising:
a case configured to output rotation to a mating member, from a drive source, which is producing a rotational force around an axis;
a coupling member configured to couple the mating member and the case by elastic deformation; and
an anti-rotation portion configured to prevent relative rotation between the mating member and the case,
wherein an outer flange portion projecting outward in a radial direction of the case is formed on the outer periphery of the case,
wherein the case is fitted into a through hole formed to pass through the mating member in an axial direction along the axis, with the outer flange portion in contact with a first surface of the mating member,
wherein the coupling member includes:
a ring portion contacting with the outer flange portion;
an elastic deformation portion extending in the axial direction from the ring portion across a second surface of the mating member, 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,

wherein the coupling member couples the case fitted into the through hole in the axial direction by pressing the outer flange portion against the mating member with the ring portion,
wherein, in a state in which the coupling member couples the case and the mating member, the elastic deformation portion extends through the through portion in the axial direction and the elastic deformation portion is in contact with an inner surface of the through portion, and the claw portion contacts against a periphery of the through hole, on the second surface of the mating member, and
wherein the case is prevented from rotating relative to through hole in a circumferential direction around the axis by the anti-rotation portion.