| 摘要 |
PROBLEM TO BE SOLVED: To provide an oil passage structure for a vehicle transmission, boring two introduction holes in a rotating shaft member, and also ensuring the required amount of lubricating oil introduced through the two introduction holes. SOLUTION: A lubricating oil passage bored in an input shaft 12 includes: an axial hole d1 bored in a position CTd1 decentered with respect to the rotation center CT12 of the input shaft 12; the two introduction holes c1<SB>1</SB>, c1<SB>2</SB>bored to introduce the lubricating oil from a lubricating oil supply portion a5 into the axial hole d1; and a plurality of discharge holes bored from the axial hole d1 toward a peripheral side and dispersing the lubricating oil to an automatic transmission mechanism. These two introduction holes c1<SB>1</SB>, c1<SB>2</SB>are bored so that the respective boring directions thereof are not located further upstream in a rotating directionωfrom a radial direction Rd from the rotation center CT12 of the input shaft 12, and also are bored so that the mutual boring directions thereof make angles (for example,θ2,θ3,θ4,θ5) ensuring the required amount of introduction. COPYRIGHT: (C)2011,JPO&INPIT |
