| 摘要 |
A system for the forward transmission of motion to the front wheel of a bicycle is disclosed. Said system is composed of a handlebars 8 swinging forward and backward by 180 deg. On the handlebars there are firmly placed two chain gears 1 & 6 transmitting the forward and backward motion, via the chains 12 and 17 respectively, to the gear box 14. Due to the reversion of the gears 3 and 11, the motion is always transmitted, through the gears 9 and 4, forward to the gear 5. The motion is transmitted, via the chain 10, from the gear 5 to the wheel gear 13 so that the wheel is in position to always dynamically move forwards. |
