| 摘要 |
A powered unicycle device has a hub motor and a tyre around the motor. A motor casing around the motor defines side walls (300,305) and an outer annular rim (301,306), and the tyre is mounted around the outer annular rim (301,306). The motor casing is formed of only two side walls (300,305) each having a rim portion (301,305), and the rim portions (301,305) connect to each other, together defining the outer annular rim (301,305). |
