| 摘要 |
PROBLEM TO BE SOLVED: To provide a driving force transmitting mechanism for a flywheel that permits a spring constant switchover, having a simple structure or an appreciable vibration degradation suppressing characteristic. SOLUTION: The driving force transmitting mechanism for a flywheel, which elastically transmits rotational driving force of a driving side flywheel 2 to a driven side flywheel 1, comprises springs 3, 4 and 7 for elastically connecting the driving side flywheel 2 and the driven side flywheel 1, and a stopper pin 8 projected from the driving side flywheel 2 so as to engage the specific position 7 of the springs 3, 4 and 7 when an angle of torsionθbetween the flywheels 1 and 2 is equal to or larger than a given valueθ1 .
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