| 摘要 |
PROBLEM TO BE SOLVED: To prevent abnormal sound from being caused by controlling vibration of a tubular member, in an automatic transmission where an oil pump is operated, by transmitting the rotation of an input shaft to the inner gear of the oil pump. SOLUTION: In a support structure of the oil pump driving shaft 70, wherein rotation of an input shaft 10 of an automatic transmission is transmitted to an inner gear 60 of the oil pump OP to drive the oil pump OP, the oil pump driving shaft 70 is supported at two positions in an axial direction, i.e., a bush 62 of an oil pump housing 50 and an extension portion 28 of a motor M rotating shaft 24, and in the oil pump driving shaft 70; an O ring 64 is provided at a position Y facing the extension portion 27 of the rotating shaft part 24, disposed on the outside of the oil pump driving shaft 70, at which the amplitude becomes maximum, when rotational vibration accompanying rotation of the inner gear 60 is inputted to the coupled part 71 of the oil pump driving shaft 70. COPYRIGHT: (C)2010,JPO&INPIT |
