System-coupling for bicycle dismantled and reconstructed from one to two tracks, has driver framework and exchangeable drive units, which are built corresponding to intended use and are connected with each other with single manipulation

摘要

The system-coupling has a driver framework and an exchangeable drive unit (AE), which are built corresponding to the intended use and are connected with each other with a single manipulation. The driver framework and the drive units are separated from each other. The driver framework and the corresponding drive unit are paired with each other with the help of any tool and are again detached from each other. The electric-, kinetic-, hydraulic- and other forces are transferred through loose contacts. The drive force is transferred from the foot pedal set to the drive unit by the conversion gear. The driver framework and the corresponding drive unit are connected with each other by strong support frames (4a,4b) in a lockable and unlockable manner.