Patent ID: 6032437
Filing Date: 2000-03-07
Classification: B31B,B65B,B65D,Y10S

Abstract:
A machine for forming packaging based on film and including complementary closure strips, the machine comprising:feeder means for feeding onto the film a closure means comprising two generally-parallel support webs provided, on their facing inside surfaces and at a distance from their lateral edges, with at least a first longitudinal assembly constituted by two complementary strips connected to respective ones of the two support webs, and with a second longitudinal assembly disposed at a distance from the first assembly in the width direction of the support webs;urging means for urging the support webs towards each other between the two longitudinal assemblies and at least at the ends of the support webs, so that by deformation of the webs under the effect of said urging the distance between the lateral edges of the two webs increases; andtwo rectilinear guides suitable for penetrating into the respective spaces formed in this way between the two pairs of lateral edges of the support webs.