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(11)

EP 3 257 141 A1

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(43) Date of publication: 20.12.2017 Bulletin 2017/51 (21) Application number: 16712489.0 (22) Date of filing: 10.02.2016

(51) International Patent Classification (IPC):  H02K 7/102(2006.01) E06B 9/90(2006.01) E06B 9/72(2006.01) (86) International application number: PCT/IB2016/050691 (87) International publication number: WO 2016/128902 (18.08.2016 Gazette 2016/33)

(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 Designated Extension States: BA ME Designated Validation States: MA MD (30) Priority: 13.02.2015 IT BO20150062 (71) Applicant: Stafer S.P.A. 48018 Faenza (Ravenna) (IT)	(72) Inventors: BELLACHIOMA, Barbara 40127 Bologna (IT) CAPPELLETTI, Diego 47121 Forli' (Forlì Cesena) (IT) (74) Representative: Conti, Marco  Bugnion S.p.A. Via di Corticella, 87 40128 Bologna 40128 Bologna (IT)