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
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