Patent ID: 7096644
Filing Date: 2006-08-29
Classification: B65B

Abstract:
1. A film folding and supplying apparatus for machines for packaging products with stretchable film, said apparatus comprising: pleating means placed between a feeding bobbin of film and a wrapping station, for folding a portion of film with the folds oriented in a traveling direction of the film, to thereby modify the width of the film in such a manner that the edges of the film on the bottom of the product, during a normal working cycle of the packaging machine, do not laterally project from the bottom of the product, said pleating means comprising: an elongate, flat and fixed guide having longitudinal edges with projecting rows of flat, idle wheels with rounded edges, which provide edges of the guide to co-operate with the film with rolling friction, and respective lateral guides to said rows of wheels of said fixed guide, having longitudinal internal edges with projecting, respective rows of flat, idle wheels with rounded edges, whereby wheels of the fixed guide cooperate with wheels of the lateral guides to partially fold the film.