| 摘要 |
PURPOSE:To prevent the occurrence of vibration and noise as well as reduce non-uniform abrasion of both gears by a method in wich the first and second pitch circle discs are provided to the intermediate gear for interruptng power and the follow gear for interrupting power in a roling contact manner. CONSTITUTION:The first and second pitch circle discs 107 and 108 having outside diameters nearly equal to the diameter of the pitch circle of an intermediate gear 78 and a follow gear 24G for power interrupting are provided to both the gears 78 and 24G in a rolling contact manner. When both the gears 78 and 24G engage with each other, the first and second pitch circle discs 107 and 108 contact with the periphery in a rolling contact manner and both the gears 78 and 24G can ideally engage and turn in a rolling contact manner with pitch circles. The occurrence of vibration and noise can thus be prevented and non-uniform abrasion of both the gears 78 and 24G can be reduced.
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