Patent ID: 8376864

Claim:
A damper mechanism, comprising: a first rotating body; a second rotating body disposed rotatably with respect to the first rotating body, the first rotating body and the second rotation body being configured and arranged in an axial direction; at least one first elastic member disposed to link the first rotating body and the second rotating body elastically in a circumferential rotation direction, the first elastic member operating only when the first rotating body rotates in a first rotating direction with respect to rotation of the second rotating body; and at least one second elastic member disposed to link the first rotating body and the second rotating body elastically in the circumferential direction, the second elastic member operating only when the first rotating body rotates in a second rotating direction with respect to the rotation of the second rotating body, the second rotating direction being opposite to the first rotating direction, the first and second elastic member being configured and arranged in a circumferential direction, the first rotating body having at least one first support portion, and at least one second support portion that is disposed apart from the first support portion in the circumferential direction, the second rotating body having at least one transmission portion, the first elastic member being supported in the circumferential direction by the first support portion and the second support portion, and being compressed in the circumferential direction between the first support portion and the transmission portion only when the first rotating body rotates in the first rotating direction with respect to the rotation of the second rotating body, the second elastic member being supported in the circumferential direction by the first support portion and the second support portion, and being compressed in the circumferential direction between the first support portion and the transmission portion only when the first rotating body rotates in the second rotating direction with respect to the second rotating body.