| 摘要 |
FIELD: transport.SUBSTANCE: claimed gearing comprises driven sprockets, one provided with free-running clutch, and drive different-diameter sprockets fitted on pedals axle, endless chain running over said sprockets and gearshift mechanism. The latter is fitted on large-diameter sprocket and composed of the solid of revolution and cantilever resilient bar with jamming and free surfaces in contact with said solid of revolution interacting with the pedal.EFFECT: simplified design and higher efficiency.4 cl, 3 dwg |
