| 摘要 |
<p>An apparatus (10) for feeding a tubular fabric (A) in a flattened state includes elements for modifying the flattened configuration of the tubular fabric (A). The elements for modifying the flattened configuration of the tubular material include an upstream part (14) with respective first (13) and second (15) coplanar elements for engaging opposite sides (A1, A2) of the tubular fabric (A) and with respective converging profiles (131, 151), and a downstream part (18) with respective first (17) and second (19) coplanar elements for engaging opposite sides (A3, A4) of the tubular fabric (A), with respective profiles (171, 191) diverging away from the upstream part (14). Actuating elements (120, 122) are provided to move the first and second stretching elements (13, 15 and 17, 19) of the upstream part (14) and the downstream part (14), respectively, relative to each other between respective positions closer together and further apart.</p> |
