Cleaner head

Patent metadata

Field	Value
Publication number	US-9949605-B2
Application number	US-201515127347-A
Country	US
Kind code	B2
Filing date	Mar 16, 2015
Priority date	Mar 19, 2014
Publication date	Apr 24, 2018
Grant date	Apr 24, 2018

Abstract

A cleaner head for a cleaning appliance, the cleaner head including a main body having an air inlet and an air outlet, an agitator supported for rotation with respect to the main body about a rotational axis, and a collector for collecting strands of hair. The collector is supported by the main body and arranged such that strands of hair drawn through the air inlet wrap around at least part of the collector. The collector is movable with respect to the main body between a hair collecting position in which the agitator is rotatable with respect to the collector and a hair removal position.

First claim

The invention claimed is:

1. A cleaner head for a cleaning appliance, comprising:
a main body having an air inlet and an air outlet;
an agitator supported for rotation with respect to the main body about a rotational axis; and
a collector for collecting strands of hair, the collector is supported by the main body and arranged such that strands of hair drawn through the air inlet wrap around at least part of the collector, the collector is movable with respect to the main body between a collecting position in which the agitator is rotatable with respect to the collector and a removal position.

2. The cleaner head of claim 1 , wherein the collector is movable between the collecting position and the removal position in a direction which is substantially parallel with the rotational axis of the agitator.

3. The cleaner head of claim 1 , wherein the collector is provided with a first engagement feature that is arranged to engage with a second engagement feature provided on the main body such that rotation of the collector with respect to the main body is prevented when the collector is in the collecting position.

4. The cleaner head of claim 3 , wherein the first engagement feature is a slot that extends substantially in the direction of the rotational axis.

5. The cleaner head of claim 4 , wherein the second engagement feature is a rib that extends in substantially the same direction as the slot.

6. The cleaner head of claim 4 , wherein at least part of the slot is exposed in the removal position so that a cutting implement can be inserted into the slot to cut strands of hair collected by the collector.

7. The cleaner head of claim 1 , wherein the agitator has a braking surface which is arranged such that hair which has accumulated on the collector engages the braking surface, thereby resisting rotation of the agitator.

8. The cleaner head of claim 7 , wherein the collector is at least partially housed by the agitator and the braking surface is an internal surface of the agitator.

9. The cleaner head of claim 1 , wherein the agitator is a brushbar.

10. The cleaner head of claim 9 , wherein the main body comprises an axle on which the brushbar is supported for rotation, wherein the axle further supports the collector and/or a motor for driving the brushbar.

11. The cleaner head of claim 9 , further comprising a bearing arranged to support the brushbar for rotation, wherein the bearing is at least partially housed by the brushbar, and the collector is arranged to prevent hair entering the bearing.

12. The cleaner head of claim 1 , wherein the cleaner head further comprises a biasing device which is arranged to bias the collector towards the collecting position.

13. The collector head of claim 12 , wherein the biasing device biases the collector against the main body.

14. The cleaner head of claim 1 , wherein the collector comprises a spool on which the strands of hair are collected.

15. The cleaner head of claim 14 , wherein the spool is arranged coaxially with the rotational axis of the agitator.

16. The cleaner head of claim 14 , wherein the spool is provided with a retaining protrusion that is arranged to retain hair on the spool.

17. The cleaner head of claim 16 , wherein the spool is arranged with respect to the main body such that a collecting region is defined between the retaining protrusion and the main body.

18. The cleaner head of claim 1 , wherein the collector is arranged such that it abuts the main body in the collecting position and is spaced away from the main body in the removal position.

19. A cleaning appliance comprising:
a cleaner head comprising:
a main body having an air inlet and an air outlet;
an agitator supported for rotation with respect to the main body about a rotational axis; and
a collector for collecting strands of hair, the collector is supported by the main body and arranged such that strands of hair drawn through the air inlet wrap around at least part of the collector, the collector is movable with respect to the main body between a collecting position in which the agitator is rotatable with respect to the collector and a removal position.

Assignees

• Dyson Technology Ltd

Inventors

• Isley David Andrew
• Shevlin Gerard Matthew

Classifications

• A47L9/0477 Primary

  Rolls · CPC title

• A47L9/0411 Primary

  driven by electric motor · CPC title

• A47L9/0613 Primary

  with means specially adapted for picking up threads, hair or the like, e.g. brushes, combs, lint pickers or bristles pads · CPC title

• A47L9/1683

  Dust collecting chambers; Dust collecting receptacles · CPC title

• A47L7/02

  with driven tools for special purposes (with floor-polishing tools A47L11/20) · CPC title