(19)

(11)

EP 3 621 790 A1

(12)

(43) Date of publication: 18.03.2020 Bulletin 2020/12 (21) Application number: 18738374.0 (22) Date of filing: 08.05.2018

(51) International Patent Classification (IPC):  B31B 50/04(2017.01) B31B 120/50(2017.01) B31B 110/35(2017.01) B31B 105/00(2017.01) B31B 50/00(2017.01) (86) International application number: PCT/IB2018/053179 (87) International publication number: WO 2018/207086 (15.11.2018 Gazette 2018/46)

(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: 08.05.2017 IT 201700049277 (71) Applicant: Sa-Te S.R.L. 51030 Serravalle Pistoiese - Pistoia (IT)	(72) Inventor: SANTINI, Renzo I-51030 Serravalle Pistoiese - Pistoia (IT) (74) Representative: Nesti, Antonio et al Studio Ferrario S.r.l. Via Arnolfo, 27 50121 Firenze 50121 Firenze (IT)