| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a change gear ratio switching device in a motor driving device for a vehicle easy in assembling with a compact axial length.SOLUTION: Retainers 36 of two-way clutches 30A, 30B are shifted by axial movement of a shift fork 63 in a shift mechanism 60 to be pressed to one of output gears 23b, 24b, and one of the two-way clutches 30A, 30B is brought into an engagement state by relative rotation of the retainer 36 to an inner ring 31. Annular recessed portions 32 are formed on side faces of the output gears 23b, 24b, and inner faces of the annular recessed portions 32 are applied as cylindrical inner faces 33 of the two-way clutches 30A, 30B. A cylindrical portion 31a disposed on an end portion of the inner ring 31 and an end portion of the retainer 36 are positioned in the annular recessed portion 32, and the entire rolling faces 35a of rollers 35 and bearings 27a, 27b rotatably supporting the output gears 23b, 24b, are disposed on neutral positions of the retainers 36.</p> |
