US 12,280,533 B2
Device and unit for transversely stretching elastic films
Gabriele Sablone, San Giovanni Teatino (IT); and Antonio D'Alberto, San Giovanni Teatino (IT)
Assigned to Fameccanica.Data S.p.A., San Giovanni Teatino Chieti (IT)
Filed by Fameccanica.Data S.p.A., San Giovanni Teatino (IT)
Filed on Aug. 2, 2022, as Appl. No. 17/879,094.
Claims priority of application No. 21189770 (EP), filed on Aug. 5, 2021.
Prior Publication US 2023/0039478 A1, Feb. 9, 2023
Int. Cl. B29C 55/08 (2006.01); B29C 55/20 (2006.01)
CPC B29C 55/08 (2013.01) [B29C 55/20 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A stretching device for transversely stretching elastic films, comprising:
first and second stretching members having respective outer edges provided with gripping elements configured for gripping corresponding edges of an elastic film, wherein said first and second stretching members have respective first and second axes of rotation inclined with respect to each other, and
a driving assembly configured for driving said first and second stretching members in rotation about the respective axes of rotation, wherein the first and second stretching members are respectively distal and proximal with respect to said driving assembly,
wherein said driving assembly comprises first and second motors connected to said first and second stretching members, respectively, and
wherein the driving assembly extends on only one side with respect to said first stretching member such that said first and second motors are arranged on a same side with respect to the respective first and second stretching members.