| 摘要 |
<p>A method is described for manufacture of a lid (10) for a beaker (11), a can or the like where the lid comprises a rim section (12) arranged to be fitted onto the opening edge of the beaker and close the access to it, and where the flat surface section of the lid inside said rim comprises a number of mutually adjoining flaps (16) formed by making through-going slits (16) in the flat surface section where the flaps are produced in that a cutting tools (41) is brought to and pressed down against the flat surface section of the lid from its top side and cuts the slits while the flat surface section rests against a base, and the method is characterised by, during the cutting the lower flat surface section of the lid is arranged onto and pressed against a support section that gives the flaps a downward curvature in the area adjoining the rim section while the flaps forward toward the centre of the lid/flap points run gently downward and approximately straight. Also described are two variants of the product itself, and also a tool for manufacture of flaps in the lid that can be bent down.</p> |
