CLEANER HEAD

• US 20130312216A1
• Filed: 11/16/2012
• Published: 11/28/2013
• Est. Priority Date: 11/18/2011
• Status: Abandoned Application

• Current Assignee: Dyson Technology Limited (Beeswax Holdings UK Limited)
• Original Assignee: Dyson Technology Limited (Beeswax Holdings UK Limited)
• Inventors: ARTHEY, Spencer James Robert, PALMER, Victoria Isabelle, LAMBOURN, Henry Licming, LAMOURY, Alexander Stuart
• Application Number:
  US13/679,558
• Publication Number:
  US 20130312216A1
• Time in Patent Office: Days
• US Class Current: 15/393
• CPC Class Codes: A47L 9/0613 with means specially adapted for picking up threads, hair or the like, e.g. brushes, combs, lint pickers or bristles pads
• CPC Class Codes: A47L 9/0653 with mechanical actuation, e.g. using a lever
• CPC Class Codes: A47L 9/066 with adjustably mounted brushes, combs, lips or pads; Height adjustment of nozzle or dust loosening tools for suction cleaners with handles and nozzles fixed on the casing A47L5/34
• CPC Class Codes: A47L 9/0666 with tilting, floating or similarly arranged brushes, combs, lips or pads

Abstract

A cleaner head for a vacuum cleaning appliance includes a suction cavity having a downwardly-directed opening through which debris enters the suction cavity. The opening is bounded in part by a front edge and a rear edge which is substantially co-planar with the front edge. A thread lifting strip is mounted on a support located within and moveable relative to the suction cavity. A spring urges the support in a direction extending towards the opening.

Claims

1. A cleaner head for a vacuum cleaning appliance, the cleaner head comprising:

a suction cavity having a downwardly-directed opening through which debris enters the cleaner head; and

a thread lifting strip located within the suction cavity and which is moveable relative to the opening.

2. The cleaner head of claim 1, wherein the thread lifting strip is moveable relative to a plane containing the opening.

3. The cleaner head of claim 1, wherein the thread lifting strip is moveable towards and away from the opening.

4. The cleaner head of claim 1, wherein the thread lifting strip is connected to a surface of a wall of the cleaner head.

5. The cleaner head of claim 4, wherein the surface is located within the suction cavity.

6. The cleaner head of claim 1, wherein the suction cavity surrounds the thread lifting strip.

7. The cleaner head of claim 1, wherein the thread lifting strip is biased towards a plane containing the opening.

8. The cleaner head of claim 1, wherein the thread lifting strip is moveable relative to the opening.

9. The cleaner head of claim 8, comprising a support on which the thread lifting strip is disposed, and wherein the support is moveable relative to the opening.

10. The cleaner head of claim 9, wherein the support is biased towards a plane containing the opening.

11. The cleaner head of claim 9, comprising at least one resilient member for urging the support towards a plane containing the opening.

12. The cleaner head of claim 11, wherein the at least one resilient member comprises at least one torsion spring.

13. The cleaner head of claim 9, wherein the thread lifting strip is mounted on the support.

14. The cleaner head of claim 9, wherein the support is connected to a cavity wall defining, at least in part, the suction cavity.

15. The cleaner head of claim 14, wherein the support is pivotably connected to the cavity wall.

16. The cleaner head of claim 15, wherein the support is pivotable about an axis extending substantially parallel to a plane containing the opening.

17. The cleaner head of claim 14, wherein the cavity wall defines one of a front edge and a rear edge of the opening.

18. The cleaner head of claim 14, wherein the support comprises at least one arm which extends outwardly therefrom and which is connected to the cavity wall for movement relative thereto.

19. The cleaner head of claim 9, wherein the support is moveable between a raised position and a lowered position, and the cleaner head comprises a stop member for inhibiting movement of the support beyond the lowered position.

20. The cleaner head of claim 19, wherein the support comprises said stop member.

21. The cleaner head of claim 19, wherein the stop member is arranged to abut a surface defining, at least in part, said suction cavity.

22. The cleaner head of claim 19, wherein the thread lifting strip is located within a recessed portion of the support.

23. The cleaner head of claim 22, wherein the recessed portion of the support comprises a front support edge and a rear support edge, and wherein the edges do not extend downwardly beyond a plane containing the opening when the support is in its lowered position.

24. The cleaner head of claim 23, wherein one of the support edges protrudes further from the support than the other support edge.