| 摘要 |
FIELD: transport.SUBSTANCE: folding bicycle with linear pedaling relates to transport facilities with muscle drive. Bicycle consists of U-like frame 1. Fork 2 of front drive wheel 3 with handlebar 4 is secured to one end of frame 1 while seat 4 and outer shaped tube hinge 7 is secured to the opposite end. Inner shaped tube 8 with rear wheel 10 is fitted in said outer shaped wheel 7. Axle with strip 13 with spring 13 and holes made over strip length is fitted on outer shaped tube. Strip is fitted by one of said holes on pin 17 at lower end of frame 1. Two swing levers 18, 19 with pedals 26, 31 arranged behind said fork 2 are secured thereon with hinges 20, 21 spaced ahead at brackets 22, 23. Swinging of levers is coupled via cables 41, 47 with revolution of sprockets 37 and via ratchets with revolution of front wheel 3. Bicycle of folded by displacing inner tube 8 upward and turning outer tune 7 on hinge 6 with locking by strip 13.EFFECT: fast folding, possibility to vary bicycle wheelbase.4 cl, 6 dwg |
