Drive unit

摘要

The drive has a reversible controllable drive motor which drives a rotor (2) about a rotational axis (1). A coil (7) mounted axially relative to the rotational axis produces an axial magnetic field and an armature (4) influenced by the magnetic field is mounted movable axially to the rotor and coil and is connected rotationally secured to the drive wheel so that through the magnetic field the armature moves against the rotor to produce a positive and/or friction locking connection between the rotor and armature : The drive motor can be an electric motor.