| 摘要 |
<p>The perforated drum (3) of the present invention has been developed for use in washing machines and tumbles dryers and contains perforations (4) that are given a special geometrical form so as to prevent the laundry from getting worn out. Accordingly, each drum perforation (4) has been produced extending toward the outer surface of the drum (6); their internal and external edges (7, 8) moved off the center of the perforation (C); and the internal surface of the perforations (9) designed in such a way as not to form a sharp line and its cross-section to have a curved surface (10).</p> |
