PROBLEM TO BE SOLVED: To provide a damper mechanism mounted on a flywheel assembly, having improved vibration damping performance by reducing its returning failures in a high rotating speed region.;SOLUTION: The damper mechanism 4 comprises: a first flywheel 2; an intermediate rotor 44 arranged rotatably relative to the first flywheel 2; a second flywheel 3 arranged rotatably relative to the intermediate rotor 44; a first damper 8 elastically connecting the first flywheel 2 to the intermediate rotor 44 in the rotating direction and having a plurality of first coil springs 41; and a second damper 9 elastically connecting the intermediate rotor 44 to the second flywheel 3 in the rotating direction for starting its operation with torque smaller than the minimum operating torque of the first damper 8. The first coil spring 41 is stored between supporting portions 45 of the intermediate rotor 44 in the state of being previously compressed in the rotating direction.;COPYRIGHT: (C)2007,JPO&INPIT
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