| 摘要 |
<p>PURPOSE:To prevent the occurrence of a crack near a sticking part by placing a buffer elastic member between a plate and an armature to absorb a shock due to attraction and the torsional vibration of a rotating shaft. CONSTITUTION:When voltage is applied to an exciting coil, an armature 43 is attracted to the sticking plane of a rotor 24 as it elastically deforms a damper rubber 42 in a compressive direction to transmit the rotation of a pulley 25 to a rotating shaft 33. In this case, shock occurring simultaneously with the sticking of the armature 43 to the rotor 24 is absorbed by the elastic deformation of the damper rubber 42 in an axial direction. Consequently, the torsional vibration of the rotating shaft 33 lessens to control quick torque transition, thus a crack near a sticked part can be prevented.</p> |
