| 摘要 |
<p>PROBLEM TO BE SOLVED: To reduce noise and vibration due to bending of an input axis in a power transmission device for a vehicle in which a plurality of crank type transmission units are arranged in parallel in an axis direction.SOLUTION: An eccentric cam 18 comprises first and second support walls 18c and 18d for sandwiching a side surface of an eccentric member 19 from both sides of an axis direction. Since a shock absorption member 44 is disposed between the first support wall 18c of the eccentric cam 18 and the side surface of the eccentric member 19 at a part of a plurality of transmission units 14, and the shock absorption member 44 is disposed between the second support wall 18d of the eccentric cam 18 and the side surface of the eccentric member 19 at the other part of the plurality of transmission units 14, even when an input axis 12 bends by a reaction that a connecting rod 33 of the transmission unit 14 transmits a load, the eccentric cam 18 provided on the input axis 12 inclines, and clearance with the eccentric member 19 supported to the eccentric cam 18 fluctuates, noise and vibration can be reduced by a fact that the shock absorption member 44 disposed between the first and second support walls 18c and 18d of the inclined eccentric cam 18 and the side surface of the eccentric member 19 absorbs fluctuation of the clearance.</p> |
