| 摘要 |
PROBLEM TO BE SOLVED: To shorten an axial length of a power transmission mechanism in which a planetary gear mechanism and a one-way clutch are arranged while adjoining each other in an axial line direction.SOLUTION: In a power transmission mechanism for a vehicle in which a planetary gear mechanism 1 and a one-way clutch 2 are arranged while adjoining each other in an axial line direction, an oil hole 12 opened at the one-way clutch 2 side is formed at one end part of a pinion pin 10, the one-way clutch 2 has a case 18, the case 18 is attached to a prescribed point of a carrier 11, the carrier 11 and the one-way clutch 2 are connected to each other, a part of the case 18 extends to an internal peripheral side in a radial direction while separating from an opening end of the oil hole 12 by a prescribed dimension in the axial line direction, a face facing the opening end at a part of the case 12 is inclined so as to approach an end part of the pinion pin 10 toward the outside in the radial direction from an internal peripheral end of the face, and an oil groove 19 for guiding a lubricant toward the opening end is formed at the inclined point. |
