(19)

(11)

EP 2 257 396 A1

(12)

(43) Date of publication: 08.12.2010 Bulletin 2010/49 (21) Application number: 09723568.3 (22) Date of filing: 19.03.2009

(51) International Patent Classification (IPC):  B21D 37/16(2006.01) C21D 1/673(2006.01) B21D 11/10(2006.01) B21D 53/88(2006.01) F16F 15/00(2006.01) (86) International application number: PCT/IB2009/051159 (87) International publication number: WO 2009/116005 (24.09.2009 Gazette 2009/39)

(84) Designated Contracting States: 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 SE SI SK TR Designated Extension States: AL BA RS (30) Priority: 21.03.2008 IT TO20080221 (71) Applicants: Gili, Bruno 10045 Piossasco (TO) (IT) Oreiller, Mariella 10045 Piossasco (TO) (IT)	(72) Inventor: GILI, Bruno 10045 Piossasco (Torino) (IT) (74) Representative: Buzzi, Franco  Buzzi, Notaro & Antonielli d'Oulx Via Maria Vittoria 18 10123 Torino 10123 Torino (IT)