Rectangular lid made by deep drawing of a plastic sheet

摘要

The rectangular lid (1), deep drawn from plastic film has a cover surface (4) and a downwards extended edge section (7) which has inwards orientated recesses (8). The edge section extends continuously outwards at an angle. An inner edge section (5) extends slightly inwards and at an angle upwards. The inner edge section by a comparatively small radius changes into an upper edge section (6) which by a relatively large radius changes into the angled outer edge section.