| 摘要 |
PURPOSE:To facilitate the layout of a power unit by incorporating an electric motor and infinitely variable transmission as the power unit such that a straight line passing through a rotary shaft of the electric motor and an output shaft below a car body frame is nearly parallel to a main frame. CONSTITUTION:A power unit 29 suspended below a car body frame of an electric motorcycle has integrally a housing 33 mounted to a main frame on the front and rear parts, an electric motor 34 incorporated in a recess 33a formed in the front right side of the housing 33, a belt type infinitely variable transmission 35 incorporated in a recess 33b formed in the front left side of the housing 33 and a reduction gear mechanism 36 incorporated in a recess 33c formed in the rear left side of the housing 33. The power unit 29 is mounted such that a straight line passing through a rotary shaft 37 of the electric motor 34 and an output shaft 68 of the reduction gear mechanism 36 extends nearly parallel to a main frame as viewed from the side, i.e., lowers rearward. |
