| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a torsional vibration attenuation device which suppresses the resonance of a rotating body in the case that a rotation number is small and a damper, prevents or suppresses the generation of noise and vibration.SOLUTION: In a torsional vibration attenuation device, drive-side members 8, 9 and a driven-side member 11 are relatively rotatably connected to each other via an elastic body 12, and a rolling body 17 which reciprocates by a variation of torque is arranged at a rolling part 16 which is formed at an external peripheral part of the driven-side member 11. When the torque is transmitted to the driven-side member 11 from the drive-side members 8, 9, and a direction in which the driven-side member 11 relatively rotates with respect to the drive-side members 8, 9 is set as a forward rotation direction pr, the rolling body 17 is fixed to one end of the rolling part 16 in a state that the driven-side member 11 is not relatively rotated in the forward rotation direction pr due to the non-transmission of the torque to the driven-side member 11 from the drive-side members 8, 9, and when the driven-side member is relatively rotated in the forward rotation direction pr, fixing pieces 13 for releasing the fixation are arranged at the drive-side members 8, 9.</p> |
