Patent ID: 8857586

Claim:
A lockup apparatus for a torque converter that is arranged between a front cover and a turbine of a torque converter and configured to couple mechanically the front cover and the turbine, the lockup apparatus comprising: a piston being coupled to the front cover; a drive plate being directly coupled to the piston; first and second elastic members to which a torque is inputted from the drive plate; a float member being arranged on a turbine side of the first elastic member, and being configured to make the first and second elastic members operate in series; and an output portion being configured to couple the first and second elastic members and the turbine, the float member including a main body portion that covers an outer peripheral portion and a turbine-side side portion of the first elastic member, and an inner peripheral support portion extending from the main body portion toward an inner periphery and being supported such that the inner peripheral support portion is rotatable relative to the output portion the output portion including an intermediate member having first and second plates, the inner peripheral support portion of the float member being disposed between the first and second plates, and a pin fastening the first plate to the second plate and passing through the inner peripheral support portion of the float member.