| 摘要 |
PROBLEM TO BE SOLVED: To provide a vehicle driving device capable of relieving an impact load while restraining a dimensional increase in the axial direction of a rotor shaft and an increase in the bearing number. SOLUTION: This driving device 2 has a driving gear shaft 14 integrally rotatably provided with a driving gear 15, a rotor shaft 13 for installing a rotor 12 of a motor generator 4 on the outer periphery and forming a through-hole 13a capable of inserting the driving gear shaft 14 in the axis Ax direction, and a pair of bearings 21 and 22 capable of rotatably supporting the driving gear shaft 14. The driving gear shaft 14 and the rotor shaft 13 are coaxially and integrally rotatably combined so that the rotor shaft 13 is positioned between the pair of bearings 21 and 22 in a state of interposing a spline joining part 25 capable of relieving the impact load transmitted between the driving gear shaft 14 and the rotor shaft 13. COPYRIGHT: (C)2009,JPO&INPIT
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