| US 7,500,634 B2 | ||
| Unwinder device for reels of web-like material with temporary accumulator members for the material unwound in the phase of reel substitution and relative method | ||
| Angelo Benvenuti, Lucca (Italy); Roberto Morelli, Lucca (Italy); and Romano Maddaleni, Pisa (Italy) | ||
| Assigned to Fabio Perini S.p.A., Lucca (Italy) | ||
| Appl. No. 10/548,543 PCT Filed Feb. 27, 2004, PCT No. PCT/IT2004/000091 § 371(c)(1), (2), (4) Date Sep. 13, 2005, PCT Pub. No. WO2004/080869, PCT Pub. Date Sep. 23, 2004. |
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| Claims priority of application No. FI2003A0065 (IT), filed on Mar. 13, 2003. | ||
| Prior Publication US 2006/0169826 A1, Aug. 03, 2006 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. B65H 19/14 (2006.01); B65H 19/18 (2006.01) | ||
| U.S. Cl. 242—552 [242/555.3] | 30 Claims |
| 1. An unwinder device for unwinding reels of web material comprising
unwinding members for simultaneously unwinding a first reel and a second reel,
a splicing device for splicing together a first web material coming from said first reel and a second web material coming
from said second reel, said splicing device comprising two co-acting opposing splicing members,
at least one accumulator member for accumulating said second web material supplied by said second reel before splicing to
the first web material supplied by said first reel,
wherein said accumulator member is placed, along a path of the second web material, downstream of said splicing device and
downstream of a zone in which said splicing between said first web material and said second web material starts.
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