Surface cleaning apparatus

Patent metadata

Field	Value
Publication number	US-11206960-B2
Application number	US-201816184650-A
Country	US
Kind code	B2
Filing date	Nov 8, 2018
Priority date	Nov 13, 2017
Publication date	Dec 28, 2021
Grant date	Dec 28, 2021

Abstract

A surface cleaning apparatus comprises a brushroll that rotates about an axis. The brushroll defines a cylindrical portion and the axis extends centrally through the cylindrical portion. The brushroll also includes a rib that extends in a direction away from the axis. The rib includes a face extending along a line that is collinear with a secant through the cylindrical portion. A brush member extends from the face.

First claim

What is claimed is:

1. A surface cleaning apparatus comprising:
a brushroll that rotates about an axis, the brushroll defining a cylindrical portion with a cylindrical portion diameter and the axis extending centrally through the cylindrical portion, the brushroll further including a rib that extends in a direction away from the axis,
wherein the rib includes a face extending along a line that is collinear with a secant through the cylindrical portion to an outer diameter, wherein the cylindrical portion diameter is more than 50% of the outer diameter, and
wherein a brush member extends from the face.

2. The surface cleaning apparatus of claim 1 , wherein the rib extends helically along and around the axis.

3. The cleaning apparatus of claim 1 , wherein the brushroll includes a plurality of ribs, wherein each of the ribs extends helically along and around the axis.

4. The cleaning apparatus of claim 3 , wherein the brushroll includes at least three ribs.

5. The cleaning apparatus of claim 1 , further comprising,
a suction source;
a dirt separator in fluid communication with the suction source; and
a suction nozzle in fluid communication with the dirt separator and the suction source.

6. The cleaning apparatus of claim 1 , wherein the brush member extends from the face a length such that a portion of the length of the brush member is drawn along the surface to be cleaned as the brushroll rotates about the axis.

7. The cleaning apparatus of claim 6 , wherein the brush member extends from the face a length that is larger than 0.5 times the cylindrical portion diameter.

8. The cleaning apparatus of claim 6 , wherein the brush member extends from the face a length that is larger than 0.65 times the cylindrical portion diameter.

9. The cleaning apparatus of claim 6 , wherein the brush member extends from the face a length that is between 0.7 and 1.5 times the cylindrical portion diameter.

10. The cleaning apparatus of claim 1 , wherein the brush member includes a plurality of polymer bristles.

11. The cleaning apparatus of claim 1 , wherein the brushroll is formed by two or more modular segments assembled in axial alignment.

12. A surface cleaning apparatus comprising:
a brushroll that rotates about an axis, the brushroll including
a body,
a rib extending outwardly from the body, the rib having a face that forms an angle in the range of 60-120 degrees with respect to the body, and
a brush member extending outwardly the face, the brush member forming an angle in the range of 70-110 degrees with respect to the face, the brush member extending a length larger than 0.5 times a diameter of the body.

13. The surface cleaning apparatus of claim 12 , wherein the rib extends helically along and around the axis.

14. The cleaning apparatus of claim 12 , wherein the brushroll includes a plurality of ribs, wherein each of the ribs extends helically along and around the axis.

15. The cleaning apparatus of claim 14 , wherein the brushroll includes at least three ribs.

16. The cleaning apparatus of claim 12 , further comprising,
a suction source;
a dirt separator in fluid communication with the suction source; and
a suction nozzle in fluid communication with the dirt separator and the suction source.

17. The cleaning apparatus of claim 12 , wherein the brush member extends from the face a length such that a portion of the length of the brush member is drawn along the surface to be cleaned as the brushroll rotates about the axis.

18. The cleaning apparatus of claim 17 , wherein the brush member extends from the face a length that is larger than 0.65 times the diameter of the body.

19. The cleaning apparatus of claim 17 , wherein the brush member extends from the face a length that is between 0.7 and 1.5 times the diameter of the body.

20. The cleaning apparatus of claim 12 , wherein the brush member includes a plurality of polymer bristles.

21. The cleaning apparatus of claim 12 , wherein the brushroll body is formed by two or more modular segments assembled in axial alignment.

Assignees

• Tti Macao Commercial Offshore Ltd
• Techtronic Floor Care Tech Ltd

Inventors

• Mcrorie Robert
• Rukavina Douglas

Classifications

• A46B7/10 Primary

  as a rotating cylinder · CPC title

• A46B13/003

  made up of a series of annular brush rings; Annular brush rings therefor · CPC title

• A47L11/4041

  Roll shaped surface treating tools · CPC title

• A46B13/001

  Cylindrical or annular brush bodies · CPC title

• A47L11/34

  Machines for treating carpets in position by liquid, foam, or vapour, e.g. by steam · CPC title