TORQUE FLUCTUATION ABSORBING UNIT

摘要

PURPOSE:To enable vibration to be effectively absorbed by lowering the resonance point below an idle rotational frequency by means of a gap space arranged in the circumferential direction on a drive side member or driven side member making contact with a coil spring for constituting a damper mechanism. CONSTITUTION:A coil spring 34 is disposed between the second drive plate 16 which is a drive member on engine side and a drive disk 23 which is a driven member and arranged coaxially and relatively rotatably with said second drive plate 16, in such configuration with angular gap theta1 in the circumferential direction. The total relative rotational amount of drive member and driven member is identical to the total sum of the amount of gap and compressed amount of the coil spring 34, and resonance point can be lowered to comparatively low level in comparison with the idle rotational frequency. Then, absorption of vibration can be effected sufficiently.