| 摘要 |
PURPOSE:To enable a cleaning device with a large suction hole to clean with a small suction capacity by providing a rotating plate equipped with a dust suction hole at adequate positions in a way to close said suction hole. CONSTITUTION:A ring or sheet-type rotating plate 1 rotating at a main body of suction hole 8 is provided along a suction hole 7 in a way to close said suction hole 7. On adequate positions of the rotating plate 1, a plurality of suction holes 2 in such a way that some of the suction holes are always provided in the suction hole 7 when the rotating plate 1 is rotating. Around the rotating plate 1, guides 14 are provided and rotating power is given by a motor 4. Therefore, when the area of a cleaning filter gets larger, cleaning by a small suction hole can be carried out all over the area of filter by making the dust suction hole movable. |
