| 摘要 |
PROBLEM TO BE SOLVED: To provide a power train device capable of reducing noise generated by film vibration by restricting the film vibration at an outer peripheral surface of a transmission case.SOLUTION: A power train device 2 is constituted in such a way that an outer peripheral surface 20A of a clutch housing 20 is formed with an engine main body side triangle surface 23, a transmission mechanism housing side triangle surface 24, a first intermediate side triangle surface 25 and a second intermediate side triangle surface 26 as triangle surfaces of a plurality of triangle shapes under a state in which each of apexes is faced to each other at positions between an engine main body side outer edge part 21 and a transmission mechanism housing side outer edge part 22 as an engine main body side triangle surfaces of a plurality of triangle shapes. In addition, at least one of the engine main body side triangle surface 23 having a bottom side faced to the engine main body 3 side or the transmission mechanism housing side triangle surface 24 having a bottom side faced to the transmission mechanism housing 8 side in the plurality of triangle surfaces is formed as a concave curved surface recessed toward inside of the clutch housing 20.SELECTED DRAWING: Figure 1 |
