Patent ID: 8357050

Claim:
A torque fluctuation absorber, comprising: a first plate member to which power of rotation is transmitted from a first rotational shaft; a second plate member arranged at a preset distance from the first plate member; a third plate member arranged between the first and second plate members and configured to transmit power of rotation to a second rotational shaft; a fourth plate member arranged at a preset distance from the second plate member; and a resilient member arranged between the second plate member and the fourth plate member and configured to bias the second plate member towards the third plate member; the resilient member including a first end located at a position having a preset distance from a center of rotation of the first rotational shaft and a second end located at a position closer to the center of rotation of the first rotational shaft than the first end; the first end abutting against the second plate member in an area where the second plate member faces the third plate member in the axial direction; the second end abutting against the fourth plate member at a contact; a mid portion of the fourth plate includes two spaced apart steps configured so that the mid portion of the fourth plate axially projects away from the second plate, the two spaced apart steps being spaced from the contact.