| 摘要 |
A vibration-absorbing coupler ( 30 A) which is capable of suppressing the torsional vibration of the transmission shaft ( 7 ) and also capable of enhancing the durability thereof is disclosed. This vibration-absorbing coupler ( 30 A) is featured in that the rotation of an output shaft ( 31 ) of an internal combustion engine ( 6 ) is enabled to transmit to a transmission shaft ( 7 ) through a torsion coil spring ( 40 A) and torsional vibration of the transmission shaft ( 7 ) is enabled to be absorbed by the torsion coil spring ( 40 A). The vibration-absorbing coupler ( 30 A) further includes a regulator ( 50, 37 A) for regulating the rotation of the torsion coil spring ( 40 A) so as not to allow it to twist more than a predetermined angle.
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