| 摘要 |
PROBLEM TO BE SOLVED: To provide a dust collecting cup inhibited from deterioration of suction power, while sustaining a suction force and securing an amount of dust collected.SOLUTION: A first filter 82 is disposed on a first inclination surface 86 inclined at a predetermined angle equal to or smaller than 45° relative to an opening direction of a suction port 71 on the inner side of a case body 51 so that the first filter is at least partially positioned at a projection position A having a shape of the suction port 71. The first filter 82 hardly catches dust and sustains suction force. A second filter 89 is disposed at a part of a second inclination surface 91 positioned along a direction crossing the first inclination angle 86, excluding the projection position A having a shape of the suction port 71. Dust rectified by the first filter 82 is efficiently caught on the second filter 89 side to eliminate the need for disposition of the whole of the first filter 82 near the suction port 71, so that the amount of dust collected is secured and the first filter 82 and the second filter 89 increase the filter area to inhibit deterioration in suction power. |
