| 摘要 |
A brush vacuum cleaner having a floor brush set with a driven brush roller having an overload protection. The brush set has at least one electric motor for a suction fan and for the drive of the brush roller, which includes a torque detecting unit. A safety shutdown is accomplished via a switch arrangement above an overload torque threshold. A driven element of the torque detection unit is disposed in the drive train which, above the torque threshold, is coupled via a switchable coupling element to an eddy current disk made of electrically conductive material. The eddy current disk has at least one magnet pivotably positioned on a fixedly mounted movable support. An adjustment of the support is made by a magnetic field of the coupled eddy current disk formed by the generated eddy current. The support controls a corresponding circuit arrangement such as a switching element as safety cut-off. |
