(19)

(11)

EP 2 747 911 A1

(12)

(43) Date of publication: 02.07.2014 Bulletin 2014/27 (21) Application number: 12784720.0 (22) Date of filing: 28.09.2012

(51) International Patent Classification (IPC):  B21B 1/18(2006.01) (86) International application number: PCT/IB2012/055208 (87) International publication number: WO 2013/046178 (04.04.2013 Gazette 2013/14)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR (30) Priority: 29.09.2011 IT TV20110131 (71) Applicant: PERT S.r.l. Tavagnacco (IT)	(72) Inventors: TOMBA, Claudio I-33040 Povoletto (IT) ZUCCATO, Massimiliano I-33031 Variano Di Basiliano (IT) (74) Representative: Bellemo, Matteo et al Studio Torta S.p.A. Via Viotti, 9 10121 Torino 10121 Torino (IT)