(19)

(11)

EP 3 390 752 A1

(12)

(43) Date of publication: 24.10.2018 Bulletin 2018/43 (21) Application number: 17835474.2 (22) Date of filing: 21.12.2017

(51) International Patent Classification (IPC):  E05C 3/14(2006.01) (86) International application number: PCT/EP2017/084183 (87) International publication number: WO 2018/122114 (05.07.2018 Gazette 2018/27)

(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 TN (30) Priority: 30.12.2016 IT 201600132690 (71) Applicant: Polo S.r.l. 56038 Ponsacco (PI) (IT)	(72) Inventor: CIONI, Paolo 56038 Ponsacco (PI) (IT) (74) Representative: Baldi, Claudio  Ing. Claudio Baldi S.r.l. Viale Cavallotti, 13 60035 Jesi (Ancona) 60035 Jesi (Ancona) (IT)