Patent ID: 8731439

Claim:
A coupling comprising: a driving side member; a driven side member; and an intermediate member interposed between the driving side member and the driven side member and configured to transmit a driving force from the driving side member to the driven side member, wherein the driven side member has: a first driven side rotating body having a first engaging portion; and a second driven side rotating body having a second engaging portion, wherein the second driven side rotating body is configured to rotate relative to the first driven side rotating body about a common axis of rotation with the first driven side rotating body, wherein the second engaging portion is disposed outside of the first engaging portion with respect to a radial direction of the first driven side rotating body, wherein the intermediate member has: a first joint having a first engaged portion configured to engage with the first engaging portion; and a second joint having a second engaged portion configured to engage with the second engaging portion; and wherein the driving side member has: a first driving side rotating body configured to couple with the first joint, and a second driving side rotating body configured to couple with the second joint.