Agitator for a surface treating appliance

Patent metadata

Field	Value
Publication number	US-9320399-B2
Application number	US-201414158316-A
Country	US
Kind code	B2
Filing date	Jan 17, 2014
Priority date	Jan 17, 2013
Publication date	Apr 26, 2016
Grant date	Apr 26, 2016

Abstract

An agitator for a surface treating appliance. The agitator comprises an agitator body having an axis, and a bristle strip carried on the agitator body and extending along a central region of the agitator body and an end region of the agitator body. The bristle strip includes a plurality of bristles aligned in a row, and wherein bristles associated with the end region of the agitator extend in a direction that defines an acute angle with the longitudinal axis of the agitator. In this way, the bristles on the ends of the agitator are provided with a outwardly swept configuration that increases the effective swept width of the agitator.

First claim

The invention claimed is:

1. A rotatable agitator for a surface treating appliance, the agitator comprising an agitator body having an axis, and a bristle strip carried on the agitator body and extending along a central region of the agitator body and an end region of the agitator body, wherein the bristle strip comprises a plurality of bristles aligned in a row, wherein bristles associated with the end region of the agitator extend in a direction that defines an acute angle with the longitudinal axis of the agitator, and wherein the agitator is configured such that a first strip portion of the bristle strip extends in a direction that is substantially parallel to or diverges outwardly away from the axis and a second strip portion of the bristle strip extends in a direction which converges inwardly on the axis.

2. The agitator of claim 1 , wherein bristles associated with the central region of the agitator extend in a direction substantially perpendicular to the axis of the agitator.

3. The agitator of claim 1 , wherein the bristle strip comprises a plurality of bristles arranged on a base.

4. The agitator of claim 3 , wherein the plurality of bristles extend in a perpendicular direction away from the base.

5. The agitator of claim 1 , wherein the end region is provided by an end member securable to the central region of the agitator.

6. The agitator of claim 1 , wherein the bristle strip is received in a track provided on the agitator.

7. The agitator of claim 6 , wherein the end region is provided by an end member securable to the central region of the agitator, and wherein the track includes a central track section provided on the central region of the agitator and an end track section provided on the end member of the agitator.

8. The agitator of claim 7 , wherein the central track section traces a helical path about the central region of the agitator.

9. The agitator of claim 7 , wherein the end track section traces a linear path along the end member of the agitator.

10. The agitator of claim 7 , wherein end track section is provided with a first inclined portion and a second inclined portion so that the bristles associated with the second track portion extend at an acute angle to the agitator axis.

11. The agitator of claim 10 , wherein the first inclined portion is directly adjacent the central region of the agitator main body and wherein the second inclined portion is directly adjacent the first inclined portion.

12. The agitator of claim 10 , wherein the first inclined portion has a positive gradient and the second inclined portion has a negative gradient.

Assignees

• Dyson Technology Ltd

Inventors

• Ventress Sean
• Tucker Matthew Adam

Classifications

• A46B3/16

  by wires or other anchoring means, specially for U-shaped bristle tufts · CPC title

• A46B13/005

  made up of a series of longitudinal strips or segments · CPC title

• A46B7/044

  Sliding connections for bristle carriers · CPC title

• A46B3/02

  by pitch, resin, cement, or other adhesives · CPC title

• A46B13/006

  formed by winding a strip tuft in a helix about the body · CPC title