| 摘要 |
PROBLEM TO BE SOLVED: To form two oil passages crossing each other in a radial direction within a shaft without increasing an outside diameter of the shaft and without increasing the number of parts. ! SOLUTION: A transmission oil passage structure includes a first oil passage P1 and a second oil passage P2 constituted by press-fitting an outer circumferential surface 55a of an inner shaft 55 into an opening of an inner circumferential surface 12a of a hollow shaft 12 rotatably supported in a casing 43 on one axial end of the hollow shaft 12, and the first oil passage P1 and the second oil passage P2 cross each other in an intermediate axial portion of the inner shaft 55 radially inward/outward. The first oil passage P1 includes a first inner oil passage 55c extending from a first supply port 55b of the inner shaft 55; a first oil hole 55d; and a first outer oil passage 55e. The second oil passage P2 includes a second outer oil passage 55g extending from a second supply port 55f ot the inner shaft 55; a se |
