| 摘要 |
PROBLEM TO BE SOLVED: To provide a vibration control mechanism of a power unit capable of suppressing torque fluctuation with gear change or driving reaction force to reduce the size of the power unit, and reducing vibration of the power unit with vibration of a speed change gear.SOLUTION: A power unit (P) in which transmissions (Tm, Ts) are included in an internal combustion engine (E) includes a plurality of speed change gears (53, 54) of the transmission (Ts), and a power transmission shaft (51) pivoting the plurality of speed change gears (53, 54). In a driving torque damper structure of the power unit, between the power transmission shaft (51) and a pair of adjacent speed change gears (53, 54) among the plurality of speed change gears (53, 54), torque dampers (57, 58) are provided.SELECTED DRAWING: Figure 6 |
