| 摘要 |
PROBLEM TO BE SOLVED: To prevent the occurrence of resonance of a main gear and resonance of an auxiliary gear independently of each other, in the gear structure of a power transmission system provided with a damper mechanism and an auxiliary gear for eliminating a backlash. SOLUTION: A clutch gear 11 and an auxiliary clutch gear 12 are arranged in juxtaposition between the end wall 13a of a clutch housing 13 and a side plate 20. A power is transmitted between the clutch gear 11 and the end wall 13a through a damper spring or the like. A coned disc spring 56 having a friction function is nipped between the end wall 13a and the clutch gear 11 and the auxiliary gear 12 is displaced in a phase in a peripheral direction from the clutch gear 11 through the force of a spring for erasing a backlash. The side plate 20 locks the clutch gear 11 by means of a step part 36b so that the load of the coned disc spring 56 is prevented from being exerted on the auxiliary gear 12, and a coned disc spring 59 different from the coned disc spring 56 is arranged in a contraction state between the clutch gear 11 and the auxiliary gear 12.
|
