Multifunctional bicycle for use as scooter, propeller and bicycle has three frame parts consisting of middle frame part, front frame part and rear frame part which are pivotably connected with each other

摘要

Multifunctional bicycle has three frame parts consisting of a middle frame part (1), front frame part (2) and rear frame part (3) which are pivotably connected with each other over a front rotating axis (8) and a rear rotating axis (9). The middle frame part is fixed in bicycle operation and propeller operation in the upper position and, in scooter operation in the lower position. A bottom bracket (12) is fixed with fixing elements.