VELOMOBILE Russian patent published in 1994 - IPC

FIELD: wheeled vehicles. SUBSTANCE: fitted in vehicle frame are steering wheel 1 with steering mechanism 2, seat 3, foot drive bottom bracket unit with pedals 4 and driving sprocket 5, axles 6 and 7 in bearings 8 of rear wheels 9 and 10. Secured on axles in one plane are larger driven sprocket 11 and smaller driven sprocket 12. Chain 13 is tightly wrapped on all three sprockets. Overrunning jaw clutch is installed in hub 14 of wheel 9. Teeth 15 of overrunning clutch spring loaded relative to hub 14 engage with two slots 16. Found in hub 17 of wheel 10 is centrifugal clutch whose teeth are pressed to axle 7. Hub 17 has 12 - 15 slots. Distance between axles 6 and 7 does not exceed 80 mm and it does not affect road stability of vehicle. EFFECT: enlarged operating capabilities. 4 dwg