| 摘要 |
PURPOSE:To downsize a shift device by providing it with a high speed rotation transmission member to transmit the rotation of carrier supported rotatably around a center axis, and a low speed rotation transmission member to transmit the rotation of rotation inner gear. CONSTITUTION:A main body 20 of shift device has a stationary inner gear and a rotation inner gear 26 mutually arranged near coaxially. With the gears 25, 26 a plurality of planetary gears 40 free to revolve and rotate are meshed, and a carrier 41 for retaining the gears 40 are supported so as to rotate freely around a center axis. The carrier 41 is rotated via high speed shaft 52 being a high speed rotation transmission member driven by a motor 53, and it is deceleration-outputted by a low speed shaft 29 being a low speed transmission member due to the rolling of the gear 40 on the gear and the meshing of both inner gears 25, 26. In this case, the shaft 29 is arranged at the center of carrier 41. It is thus possible to improve freedom of designing and make the sizes of a transmission. |
