Vacuum cleaner mouthpiece has wedge shaped housing edges in main working direction, suction slots on bottom, rotating brushes parallel to housing edges driven in same direction

摘要

The mouthpiece has both housing edges (1a,1b) of wedge shape in the main working direction and suction slots (S1,S2) on the bottom. Rotating brushes (6,8) arranged parallel to the wedge-shaped housing edges are driven in the same direction and turn towards a central suction air channel (12).