To secure the lubrication performance of a plurality of one-way clutches parallel arranged on an outer periphery of an output shaft of a power transmission device for vehicle.
A plurality of power transmission units U for transmitting a rotation of an input shaft 11 to an output shaft 12 via a connecting rod 19 and a one-way clutch 21 is parallel arranged in an axial direction. A first side face 22d of one outer member 22 and a second side face 22e of the other outer member 22 of the two one-way clutches 21 adjacent to each other in the axial direction face each other via a clearance α, and an annular projection 42 projects in the clearance α from the second side face 22e toward the first side face 22d to make a labyrinth β. As a result, even though the centrifugal force acts on oil held in the clearance α, outflow of the oil is prevented by the labyrinth β and the lubrication performance of the one-way clutch 21 can be secured.
Kazuaki Niki
Nude Shima Shinji
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