BICYCLE Russian patent published in 1999 - IPC

FIELD: transport engineering; bicycles. SUBSTANCE: in proposed bicycle rotation of driving wheel is provided by alternate application of force to pedals and to saddle. Bicycle has rigid frame, front wheel, rear driving wheel, chain, bottom bracket mechanism, pedals connected through cranks with bottom bracket axle. Saddle is installed on support pin. Bicycle is made for transformation into transport configuration in which pedals are connected off-phase relative to each other and saddle support pin is rigidly coupled with rigid frame, and into training configuration in which pedals are arranged in phase relative to each other and support pin of saddle is coupled with bottom bracket axle through crank of saddle. In training configuration, pedal cranks at bottom dead center are arranged at angle to saddle crank to provide forward movement of bicycle under action of force of rider weight onto saddle. EFFECT: enlarged operating capabilities, possibility of using the bicycle for training and trips. 7 cl, 6 dwg