| 摘要 |
Cleaning device comprising a chassis that can be moved over a ground surface, said cleaning device comprising a space in which a roller-shaped brush provided with bristles is arranged in a rotatable manner about an axle in such a way that said ground can be brushed therewith, said space being connected with an outlet channel for the removal of material brushed away by the bristles, wherein in the brush and coaxially with the axle an air channel is arranged, said air channel being provided with a series of openings which are directed towards the outlet channel and open between the bristles. |
