B - Operations – Transporting – 31 – B
Patent
B - Operations, Transporting
31
B
B31B 37/60 (2006.01) B31B 19/26 (2006.01) B31B 37/00 (2006.01)
Patent
CA 2493659
It is arranged that even if a bottom gusset member is not specially supplied, a bottom gusset can be incorporated into a plastic bag. As continuous trunk members (1, 2) are fed, they are guided by a trunk guide mechanism (16-29) and folded along a longitudinal fold line (8). Then, the folded portion (4) is folded back along a longitudinal fold-back line (10), whereby a twofold section is formed of the trunk members, with the continuous trunk members forming the trunk of the plastic bag, the twofold section forming the bottom gusset of the plastic bag.
L'invention concerne un sac en plastique qui, même s'ils ne comportent pas de soufflet inférieur prévu spécialement, permet d'intégrer un tel soufflet. A mesure que des éléments (1, 2) corps continus sont chargés, ceux-ci sont guidés par un mécanisme (16-29) de guidage de corps et pliés suivant une ligne (8) de pliage longitudinale. La partie pliée (4) est ensuite repliée suivant une ligne (10) de repliement longitudinale, les éléments corps formant une partie à deux plis. Lesdits éléments corps forment le corps du sac en plastique, et la partie à deux plis forme le soufflet inférieur dudit sac.
G. Ronald Bell & Associates
Totani Corporation
LandOfFree
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