| 摘要 |
PURPOSE: To provide a portable bicycle made light-weighted, foldable small and extensible in a single operation. CONSTITUTION: For a frame, a seat post having a saddle 16 is inserted into a frame 20 after a rear wheel is mounted on the lower end, and fixed by a stopper having a quick release lever 19. A handle bar 1 and a front wheel are mounted on the upper end and lower end of a long handle post 2, respectively, and connected by two middle frames 20. For a driving device, a reel having the claw of a clutch is geared with a clutch plate mounted on the rear wheel, the rope wound on the reel is passed above a guide roller 15 and connected to the top of a clank shaft 15. A rewinding rope is also connected to the reel, and the top end is pulled and connected to a spring. |
