| 摘要 |
The invention relates to a device for cleaning roof surfaces, and in particular solar modules arranged on the roof surfaces, the device having a cleaning unit which can be moved over the roof surface along at least one guide rail (3) and which serves for cleaning the roof surface or the solar modules, and a drive unit (4) for moving the cleaning unit along the at least one guide rail (3). There is provided, coupled to the drive unit (4), a brake device (5) by means of which the cleaning unit can be prevented from moving relative to the at least one guide rail (3). |
