| 摘要 |
<p>Disclosed are floor maintenance equipment such as vacuum cleaners, having a ground facing cleaner head for receiving a driven brush roller with an overload protection, which the cleaner head has at least one electric motor for a suction fan and to drive the brush roller which is associated with a unit for torque sensing, and a safety shutdown a switching circuit above a torque threshold is effected by the overload, whereby a driven element of the unit is arranged for torque detection in the drive train which can be coupled above the torque threshold over a Switchable clutch element with an associated rotary body as an eddy current disc of electrically conductive material, said eddy current disk associated with at least a magnet is pivotally positioned on a movable carrier fixedly mounted, and an adjustment of the carrier by a formed from the generated eddy current carried out the coupled magnetic field eddy current disc, wherein the carrier is a corresponding circuit arrangement as a switching element, controls the safety shutdown.</p> |
