BICYCLE Russian patent published in 1996 - IPC

FIELD: children, group (multidrive) and portable bicycles. SUBSTANCE: bicycle has frame, running wheels and torque transmission mechanism consisting of turnable bow-shaped spring-loaded segment with length of roller-bushed chain fitted in. Segment executes vibratory movement in rollers to set into rotation toothed sprocket engaging with chain by means of spring-loaded ball-, roller-taper inserts (or balls) (rollers) uniformly spaced over circumference between holders of wheel hub and sprocket wedging (locking) the holders at working (running) stroke of propeller wheel and disengaging (unlocking) at return of segment into initial (stating) position. EFFECT: enlarged operating capabilities. 2 dwg