US 12,082,763 B2
Vacuum cleaner brush roll and vacuum cleaner
Roger Karlsson, Stockholm (SE)
Assigned to Aktiebolaget Electrolux, Stockholm (SE)
Appl. No. 17/299,518
Filed by Aktiebolaget Electrolux, Stockholm (SE)
PCT Filed Dec. 7, 2018, PCT No. PCT/EP2018/083904
§ 371(c)(1), (2) Date Jun. 3, 2021,
PCT Pub. No. WO2020/114605, PCT Pub. Date Jun. 11, 2020.
Prior Publication US 2022/0053984 A1, Feb. 24, 2022
Int. Cl. A47L 9/04 (2006.01); A46B 9/02 (2006.01); A46B 9/06 (2006.01); A46B 13/00 (2006.01)
CPC A47L 9/0477 (2013.01) [A47L 9/04 (2013.01); A46B 9/02 (2013.01); A46B 9/06 (2013.01); A46B 13/001 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A vacuum cleaner brush roll comprising:
a brush body arranged to rotate around an axis (ax),
a first row of bristles arranged on a first axial half section of the brush body along a first helix around the axis (ax),
a second row of bristles arranged on a second axial half section of the brush body along a second helix around the axis (ax),
wherein a twist direction of the second helix is opposite to a twist direction of the first helix,
wherein the first row of bristles comprises a first type of bristles and the second row of bristles comprises a second type of bristles having different characteristics than the first type of bristles, and
wherein the brush roll is arranged to rotate in an intended rotational direction (rd) causing intersection points between portions of the first and second rows of bristles and a stationary plane (p1) comprising the axis (ax) to move towards a separation plane (p2) between the first and second axial half sections when the brush roll is rotating around the axis (ax) in the intended rotational direction (rd).