| 摘要 |
PURPOSE:To effectively prevent noises and vibrations from the engine, etc. by inserting spring pins into the oblong holes which are provided on the projected parts of the friction plates and of which lengths are different at each friction plate. CONSTITUTION:The oblong holes 31, 32, 33 of which lengths are different at each friction plate are provided at the projected parts 26, 27, 28 of friction plates 21, 22, 23, and the spring pin 30 which is press fitted into the hub 1 is inserted into the oblong holes 31, 32, 33. By doing so, the edges of the oblong holes 31, 32, 33 successively contact the pin 30 when the retaining plate 6 is twisted against the hub plate 3 for about 3 deg., about 5 deg., and about 7 deg.. Therefore, the hysteresistorque can be changed step by step from any twisting angle corresponding to the twisting of the retaining plate 6, and noises and vibrations from the engine, the change gear, etc. can be prevented. |
