Agitator with debrider and hair removal

Patent metadata

Field	Value
Publication number	US-10925447-B2
Application number	US-201815917598-A
Country	US
Kind code	B2
Filing date	Mar 10, 2018
Priority date	Mar 10, 2017
Publication date	Feb 23, 2021
Grant date	Feb 23, 2021

Abstract

A surface cleaning apparatus including a body defining an agitation chamber, an agitator partially disposed within the agitation chamber and configured to rotate about a pivot axis, and a debrider at least partially disposed within the agitation chamber. The agitator includes an elongated body having a first and a second end, a sidewall extending radially outward from the elongated body extending between the first and the second ends, and a plurality of bristles extending radially outward from the elongated body. The plurality of bristles are arranged in at least one row adjacent to the sidewall. The debrider includes a plurality of teeth configured to contact a portion of the sidewall as the agitator rotates about the pivot axis.

First claim

What is claimed is:

1. A surface cleaning apparatus comprising:
a body defining an agitation chamber;
an agitator partially disposed within said agitation chamber and configured to rotate about a pivot axis, said agitator comprising:
an elongated body having a first and a second end;
a flap extending outward from said elongated body, said flap disposed between said first and said second ends; and
a plurality of bristles extending outward from said elongated body, said plurality of bristles arranged in at least one row adjacent to said flap; and

a debrider at least partially disposed within said agitation chamber, said debrider comprising a plurality of teeth disposed within a central region and a first and a second lateral region, wherein a length of said teeth in at least said first lateral region is smaller than a length of said teeth in said central region.

2. The surface cleaning apparatus of claim 1 , wherein said plurality of bristles are disposed in front of said flap as said agitator rotates in a first direction about said pivot axis such that said plurality of bristles lead said flap.

3. The surface cleaning apparatus of claim 2 , wherein said agitator comprises a first and a second row of said bristles and a first and a second flap adjacent to said first and said second row of said bristles, respectively.

4. The surface cleaning apparatus of claim 1 , wherein said plurality of bristles contact said teeth of said debrider as said agitator rotates about said pivot axis.

5. The surface cleaning apparatus of claim 1 , wherein said plurality of teeth are configured to contact up to 10 mm of the distal most end of said flap.

6. The surface cleaning apparatus of claim 1 , wherein a distal most end of said flap, radially furthest from the pivot axis, is located within 10 mm of said least one row of said plurality of bristles.

7. The surface cleaning apparatus of claim 1 , wherein said flap comprises a flexible material.

8. The surface cleaning apparatus of claim 1 , wherein said debrider includes 0.5-16 teeth per inch.

9. The surface cleaning apparatus of claim 1 , wherein said plurality of teeth having a spacing from a center of one tooth to a center of an adjacent tooth of up to 50.8 mm.

10. The surface cleaning apparatus of claim 1 , further comprising a first and a second end cap disposed at said first and said second ends of said elongated body, wherein flap abuts against said first and said second end caps.

11. The surface cleaning apparatus of claim 10 , wherein flap is received in a recess formed in said first and said second enlarged end caps.

12. The surface cleaning apparatus of claim 1 , wherein plurality of bristles extend radially up to 5 mm beyond the flap.

13. The surface cleaning apparatus of claim 1 , wherein said surface cleaning apparatus comprises a robot cleaning apparatus configured to autonomously navigate in a space to pick-up debris.

14. The surface cleaning apparatus of claim 1 , wherein said surface cleaning apparatus comprises an upright vacuum.

15. The surface cleaning apparatus of claim 1 , wherein said teeth of said central region overlap with said agitator further than said teeth of said first lateral region as said agitator rotates about said pivot axis.

16. The surface cleaning apparatus of claim 15 , wherein said teeth of said central region overlap with said flap of said agitator further than said teeth of said first lateral region overlap with said flap of said agitator.

17. The surface cleaning apparatus of claim 15 , wherein said teeth of said central region overlap with said plurality of bristles of said agitator further than said teeth of said first lateral region overlap with said plurality of bristles of said agitator.

18. The surface cleaning apparatus of claim 1 , wherein said length of said teeth in said first lateral region tapers from said central region towards said first end.

19. The surface cleaning apparatus of claim 1 , wherein a length of said teeth in said second lateral region is smaller than a length of said teeth in said central region.

20. The surface cleaning apparatus of claim 19 , wherein said length of said teeth in said first and said second lateral regions taper from said central region towards said first and said second ends, respectively.

21. The surface cleaning apparatus of claim 1 , wherein said length of said teeth in said first lateral region steps down when transitioning from said central region to said first lateral region.

22. A surface cleaning apparatus comprising:
a body defining an agitation chamber;
an agitator partially disposed within said agitation chamber and configured to rotate about a pivot axis, said agitator comprising:
an elongated body having a first and a second end;
a flap extending outward from said elongated body, said flap disposed between said first and said second ends and comprising a flexible material; and
a plurality of bristles extending outward from said elongated body, said plurality of bristles arranged in at least one row adjacent to said flap; and

a debrider at least partially disposed within said agitation chamber and configured to contact said plurality of bristles as said agitator rotates about said pivot axis, said debrider comprising a plurality of teeth disposed within a central region and a first and a second lateral region, wherein a length of said teeth in said first lateral region is smaller than a length of said teeth in said central region.

23. The surface cleaning apparatus of claim 22 , wherein said teeth of said central region overlap with said agitator further than said teeth of said first lateral region as said agitator rotates about said pivot axis.

24. The surface cleaning apparatus of claim 23 , wherein said teeth of said central region overlap with said flap of said agitator further than said teeth of said first lateral region overlap with said flap of said agitator.

25. The surface cleaning apparatus of claim 23 , wherein said teeth of said central region overlap with said plurality of bristles of said agitator further than said teeth of said first lateral region overlap with said plurality of bristles of said agitator.

Assignees

• Sharkninja Operating Llc

Inventors

• Der Marderosian Daniel R
• Freese John
• Howes Gordon
• Gao Wenxiu
• Clare David S
• Herrmann Nathan
• Croggon Hugh Jamie
• Sardar Nicholas
• Smith Tyler
• Liu Ian
• Wang Jiancheng

Classifications

• A47L9/0477 Primary

  Rolls · CPC title

• A47L9/0461 Primary

  Dust-loosening tools, e.g. agitators, brushes · CPC title

• A47L9/00

  Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners · CPC title

• A47L2201/00

  Robotic cleaning machines, i.e. with automatic control of the travelling movement or the cleaning operation · CPC title

• A46B13/001

  Cylindrical or annular brush bodies · CPC title