| 摘要 |
<p>The invention relates to a vacuum cleaner nozzle of the kind being adapted to be moved over a floor (6) or other surface to be cleaned, comprising an outlet opening (2), which is adapted to be connected to a vacuum source, a suction opening (3) in a side of the vacuum cleaner nozzle facing the surface to be cleaned which is in fluid communication with the outlet opening to allow withdrawal of debris and dust from the surface through the suction opening, and at least one rotatable roller (4), which is adapted to at least partly support the vacuum cleaner nozzle against the surface and is formed of an essentially air tight material. The at least one rotatable roller (4) is either an idle roller, which is rolling along as the nozzle is moved over the surface, or is driven in a direction of rotation such that a portion of its envelope surface, which is facing the surface to be cleaned, is moved towards the suction opening (3) to accomplish sweeping of debris and dust towards the suction opening. The rotatable roller is partly surrounded by a sealing member (9) close to the envelope surface of the roller, along a portion of its circumference which is located essentially opposite the surface to be cleaned such that air flow around the portion of the envelope surface located opposite the surface to be cleaned is restricted and such that the roller functions as a rotatable air barrier.</p> |
