| 摘要 |
PURPOSE: An electric bicycle motor transmission is provided to improve the lifetime of a motor by manufacturing a shape of the gear member of a ring gear as a helical gear. CONSTITUTION: A plurality of planetary gears engages with a sun gear. The sun gear delivers the power of the rotary shaft of a motor. A ring gear has a gear member(51) and a clutch member(52). The gear member engages with the inner surface of the planetary gears. The clutch member varies power according to the forward rotation or the reverse rotation of the sun gear. A connecting unit connects the gear member to the clutch member. |
