| 摘要 |
PROBLEM TO BE SOLVED: To alleviate a rising-up of hysteresis torque and restrict occurrence of vibration or sound effectively in a low torsion angle region of a torsion characteristic.SOLUTION: This damper disc assembly comprises: an input side plate 2; an output unit 3 including a flange 18 and a hub 17; a high rigid damper unit 4; pre-damper units 5, 6; and first and second hysteresis torque generating mechanisms 7, 8. The pre-damper units 5, 6 are arranged between axial directions of the input side plate 2 and the flange 18 and are operated in a low torsion angle region of a torsion characteristic. The first hysteresis torque generating mechanism 7 generates the first hysteresis torque in the low torsion angle region side in operating regions of the pre-dampers 5, 6. The second hysteresis generating mechanism 8 generates the second hysteresis torque in a high torsion angle side of operating regions of the pre-dampers 5, 6 and an operating region of the high rigid damper unit. |
