| 摘要 |
<p>A motor drive unit (1) for an electric motor-operated vehicle, in particular bicycle, having an electric motor (3) and a planetary transmission (4) which are disposed inside a hub (5) supported for rotation on the same axial line with a wheel shaft of a wheel. Said electric motor is disposed on one vehicle width direction end of the inside of the hub, the planetary transmission is disposed on the other end and a rotor of the electric motor is coupled to a sun member of the planetary transmission. <IMAGE></p> |
