B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
26/106, 217/193.
B29C 65/56 (2006.01)
Patent
CA 1212826
Abstract: Method to secure to a first part of plastic material (7) a second part (2). The first part is preferably a component of a package and made by hot embossing of a plastic sheet. During the hot em- bossing process, tubular projections (9) are formed in the plastic part, each of which projections is arranged to be introduced through a hole (4) of the second part (2). The projection (9) is shaped with an outer terminating portion (11, 12) closing the same, which portion forms a vaulted termination extending in outwards direction, which is provided with such creasing rules that it can be brought to an at least somewhat inwards bulging position. In order to bring about the securing, after the second part (2) with its hole (4) has been threaded on the projection (9), a surface is laid against the vaulted termination and is pressed against the same, so that it is inversely forced into its inwards bulging position. In this position it causes such a widening of the portion (10; 14) of the projection located inside of the termination that said portion forms a rivet head (13; 19). The invention also comprises a securing device manufactured according to the method.
433584
Gowling Lafleur Henderson Llp
Nertman Trading Ab
LandOfFree
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