Cleaner head

• US 8,316,503 B2
• Filed: 06/01/2010
• Issued: 11/27/2012
• Est. Priority Date: 06/09/2009
• Status: Active Grant

• Current Assignee: Dyson Technology Limited (Beeswax Holdings UK Limited)
• Original Assignee: Dyson Technology Limited (Beeswax Holdings UK Limited)
• Inventors: Follows, Thomas James Dunning, Courtney, Stephen Benjamin
• Primary Examiner(s): Glessner, Brian
• Assistant Examiner(s): Mattei, Brian D
• Application Number:
  US12/791,640
• Publication Number:
  US 20100306956A1
• Time in Patent Office: 910 Days
• Field of Search: 15/15.1, 15179-183, 152/00, 152/072, 153/83, 153/98, 151/412, 151/98
• US Class Current: 15/179
• CPC Class Codes: A47L 9/0477 Rolls

Abstract

Agitating apparatus for a surface treating appliance includes a rotatable body having a plurality of grooves formed therein, an agitating member located within each groove so that at least one side edge of the agitating member protrudes outwardly from the body, and a connecting member located within each groove for connecting the agitating member to the body.

Claims

1. An agitating apparatus for a surface treating appliance, comprising a rotatable body having a plurality of grooves formed therein, an agitating member located within each groove so that at least one side edge of the agitating member protrudes outwardly from the body, and a connecting member located within each groove for connecting the agitating member to the body, wherein each agitating member is in the form of a flexible strip of bristles, and the agitating member is clamped between the body and a respective connecting member along the length thereof.

2. The agitating apparatus of claim 1, wherein the surface resistivity of each agitating member is in the range from 1×

10<sup>−

5</sup> to 1×

10¹² Ω

/sq.

3. The agitating apparatus of claim 1, wherein each agitating member is formed from one of metallic, carbon fiber, conductive acrylic and composite material.

4. The agitating apparatus of claim 1, wherein each groove is at least partially helical.

5. The agitating apparatus of claim 1, wherein an outer surface of the connecting member is substantially flush with the outer surface of the body.

6. The agitating apparatus of claim 1, wherein each agitating member is located within its respective groove so that opposing side edges of the agitating member protrude outwardly from the body.

7. The agitating apparatus of claim 1, wherein each strip contains in the range from 20 to 100 bristles per mm length of the strip.

8. The agitating apparatus of claim 1, wherein the bristles have a diameter in the range from 5 to 20 μ

m.

9. The agitating apparatus of claim 1, wherein each strip has a thickness in the range from 0.25 to 2 mm.

10. The agitating apparatus of claim 1, wherein the rotatable body comprises further surface agitating members.

11. The agitating apparatus of claim 10, wherein the further surface agitating members are located between the grooves of the body.

12. The agitating apparatus of claim 10, wherein the further agitating members are arranged in a plurality of rows along the body.

13. The agitating apparatus of claim 12, wherein the rows of further agitating members are discontinuous.

14. The agitating apparatus of claim 10, wherein the further surface agitating members comprise one of a plurality of bristles, a plurality of filaments, and at least one strip of material.

15. The agitating apparatus of claim 1, in the form of a rotatable brush bar.

16. A cleaner head for a surface treating appliance comprising the agitating apparatus of claim 1.

17. The agitating apparatus of claim 1, wherein the connecting member is connected to the body.

18. The agitating apparatus of claim 1, wherein the connecting member is located within each groove over the agitating member.