| 摘要 |
The present invention relates to a backing pad (1) with slots for sanding disks with multiple holes, comprising 3 parts, and upper, an intermediate and a lower part, joined together by a fastening system, in which the upper part (2), which has a frustoconical shape, includes suction holes (7) and a central hole (8), and characterised in that the intermediate part (3) comprises suction slots (5), a central hole (8') and in the rear face thereof suction channels (6) bordered by raised walls (10); and the lower part (4), which has a frustoconical shape, and in which the intermediate part (3) is fitted, comprises slots (5) and a central hole (8"), as well as suction slots (11) arranged in concentric and equidistant rings, the size of each of the slots (11) increasing from the centre to the periphery. |
