Wheel for floor care appliances
AssigneeAB Electrolux
InventorsAnna-Karin Trydegård, Esbjörn Svantesson, Stefan Jonsson, Maria Berndtson
Life of this patent
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Abstract
A vacuum cleaner having a vacuum cleaner body, a suction fan and motor operatively associated with the vacuum cleaner body, and a wheel. The wheel has a wheel body having an axis of rotation, a tread surface, and a cushion layer radially interposed between the wheel body and the tread surface. The cushion layer includes a resilient shell having a plurality of resilient cells therein. The shell and the plurality of cells have one or more gasses in them, and are dimensioned to damp vibrations and impacts between the tread surface and a floor surface that the tread surface contacts as the wheel rotates about the axis of rotation.
Claims18
A vacuum cleaner comprising:
- a vacuum cleaner body;
- a suction fan and motor operatively associated with the vacuum cleaner body;
- at least one wheel comprising:
- a wheel body having an axis of rotation;
- a tread surface;
- and
- a cushion layer radially interposed between the wheel body and the tread surface, the cushion layer comprising a resilient shell having a plurality of resilient cells therein, the shell and the plurality of cells having one or more gasses therein and being dimensioned to damp vibrations and impacts between the tread surface and a floor surface that the tread surface contacts as the wheel body rotates about the axis of rotation.
A vacuum cleaner comprising:
- a vacuum cleaner body;
- a suction fan and motor operatively associated with the vacuum cleaner body;
- a wheel comprising a plurality of discrete cells, the plurality of discrete cells being disposed around the circumference of the wheel, and each discrete cell having a flexible wall and a gas filled chamber surrounded by the flexible wall, wherein the flexible wall is dimensioned to damp vibrations and impacts between the tread surface and a floor surface upon which the tread surface moves.
Dependencies are inferred from the claim text.