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(11)

EP 2 396 489 A2

(12)

(43) Date of publication: 21.12.2011 Bulletin 2011/51 (21) Application number: 10706382.8 (22) Date of filing: 08.02.2010

(51) International Patent Classification (IPC):  E06B 9/78(2006.01) (86) International application number: PCT/IB2010/050556 (87) International publication number: WO 2010/092521 (19.08.2010 Gazette 2010/33)

(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 SM TR (30) Priority: 10.02.2009 IT BO20090065 (71) Applicant: Stafer S.P.A. 48018 Faenza (Ravenna) (IT)	(72) Inventors: PIAZZA, Marco I-48018 Faenza (Ravenna) (IT) BELLACHIOMA, Barbara I-40127 Bologna (IT) (74) Representative: Conti, Marco  c/o BUGNION S.p.A. Via di Corticella, 87 40121 Bologna 40121 Bologna (IT)