(19)

(11)

EP 3 874 108 A1

(12)

(43) Date of publication: 08.09.2021 Bulletin 2021/36 (21) Application number: 19813129.4 (22) Date of filing: 31.10.2019

(51) International Patent Classification (IPC):  E05F 15/59(2015.01) (86) International application number: PCT/IB2019/059358 (87) International publication number: WO 2020/089833 (07.05.2020 Gazette 2020/19)

(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: KH MA MD TN (30) Priority: 31.10.2018 IT 201800009983 (71) Applicant: PI.EM Srls 20080 Milano (IT)	(72) Inventor: PIOGGIA, Maxim 20037 Paderno Dugnano (MI) (IT) (74) Representative: Faraldi, Marco et al Studio Torta S.p.A. Via Viotti, 9 10121 Torino 10121 Torino (IT)