| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a vehicle motor drive device capable of reliably preventing double engagement between a two-way roller clutch of a current gear and a two-way roller clutch of a next gear. <P>SOLUTION: A first-gear engaging projection 66a is provided to a first-gear friction plate 52a, an engaging concavity is provided to a shift ring 51, the first-gear engaging projection 66a and the engaging concavity are formed so as to engage with each other and restrict the shift ring 51 from rotating relative to the first-gear friction plate 52a when the shift ring 51 is in a first-gear shift position, a protruding piece is provided to the inner periphery of the shift ring 51, an annular protrusion having a notch is provided in the outer periphery of an output shaft 22, and the protruding piece and the annular protrusion are formed so that when the protruding piece is taken out in the axial direction from the notch of the annular protrusion and the position of the protruding piece and the position of the notch of the annular protrusion are offset in the circumferential direction, the protruding piece interferes with the annular protrusion, thereby restricting the shift ring 51 from moving in the axial direction between the first-gear shift position and a second-gear shift position. <P>COPYRIGHT: (C)2012,JPO&INPIT |
