| 摘要 |
PURPOSE: A damper mechanism is provided to achieve preferable vibration damping performances by providing different characteristics on positive and negative sides of torsion characteristics. CONSTITUTION: In a damper mechanism of a clutch disk assembly, a plurality of coil springs(33,36) are arranged so that they are compressed when plates(12,13) rotate relatively to a hub(6) such that a higher torsional rigidity occurs on the positive side of the torsional angle range than the negative side. A friction generating mechanism is arranged to generate friction when the plates rotate relatively to the hub. The friction generating mechanism generates a larger friction on the positive side of the torsion angle range than the negative side. Vibration is reduced with providing different characteristics on positive and negative sides of torsion characteristics.
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