| 摘要 |
Wash tubs for domestic front loading washing machines, where rigidity of the back plate supporting the rotatable drum is an essential requisite, are made more rigid, quicker, stronger and cheaper as solid mouldings than as structural foam mouldings, the latter being the accepted norm for maximising panel stiffness. Preferred materials are fibre reinforced thermoplastic compositions free from blowing agents. The back plates are moulded in a Greek Fan configuration comprising a plurality of sectors adjacent ones of which are relatively displaced axially of the wash tub and are joined at their radial edges by axially extending webs, the sectors preferably being thicker than the webs. |
