Cleaner head

a cleaner head and cleaning technology, applied in the direction of vacuum nozzles, carpet cleaners, floor cleaners, etc., can solve the problems of affecting the cleaning performance of the cleaner head on such floor surfaces

Inactive Publication Date: 2010-12-09
DYSON TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0009]Providing the rotatable body with an electrically conductive outer surface can enable static electricity residing on a floor surface to be cleaned to be discharged upon contact between the body and the floor surface. This enables fine dust and powder which would otherwise be attracted to the floor surface to be dislodged from the floor surface by the body. Having an outer surface comprising a pile, which is preferably similar to the raised or fluffy surface of a carpet, rug or cloth, can inhibit scratching or other marking of the floor surface upon contact with the rotating body.

Problems solved by technology

This can impair the cleaning performance on the cleaner head on such floor surfaces, as the sweeping action of the nylon bristles is insufficient to overcome the force attracting the fine dust to the floor surface.

Method used

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Examples

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Embodiment Construction

[0034]With reference first to FIGS. 1 to 3, a floor tool 10 comprises a cleaner head 12 rotatably attached to a coupling 14. The free end of the coupling 14 is attachable to a wand, hose or other such duct of a cleaning appliance (not shown). The cleaner head 12 comprises a housing 16 and a lower plate, or sole plate 18, comprising a suction opening 20 through which a dirt-bearing fluid flow enters the cleaner head 12. The housing 16 defines a suction passage extending from the suction opening 20 to an outlet duct 22 located at the rear of the housing 16. The housing 16 preferably comprises a front bumper 23. The sole plate 18 comprises a plurality of support members 24 in the form of rolling elements mounted within recessed portions of the sole plate 18 for supporting the cleaner head 12 on a floor surface. With reference to FIGS. 7 and 8, the support members 24 are preferably arranged to support the sole plate 18 above the floor surface when the cleaner head 12 is located on a har...

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PUM

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Abstract

Agitating apparatus for a surface treating appliance includes a rotatable body having an outer surface comprising an electrically conductive pile formed from filaments having a surface resistivity in the range from 1×10−5 to 1×1012 Ω / sq.

Description

[0001]REFERENCE TO RELATED APPLICATIONS[0002]This application claims the priority of United Kingdom Application No. 0909899.7, filed Jun. 9, 2009, the entire contents of which are incorporated herein by reference.FIELD OF THE INVENTION[0003]The present invention relates to agitating apparatus for a surface treating application, and to a cleaner head for a surface treating appliance. In its preferred embodiment, the present invention relates to a cleaner head for a vacuum cleaning appliance.BACKGROUND OF THE INVENTION[0004]A vacuum cleaner typically comprises a main body containing dirt and dust separating apparatus, a cleaner head connected to the main body and having a suction opening, and a motor-driven fan unit for drawing dirt-bearing air through the suction opening. The dirt-bearing air is conveyed to the separating apparatus so that dirt and dust can be separated from the air before the air is expelled to the atmosphere.[0005]The suction opening is directed downwardly to face ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A47L5/26
CPCA47L9/0477A47L13/40A47L9/0466A47L9/02A47L9/04
Inventor FOLLOWS, THOMAS JAMES DUNNINGCOURTNEY, STEPHEN BENJAMIN
Owner DYSON TECH LTD
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