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(11)

EP 3 676 465 A1

(12)

(43) Date of publication: 08.07.2020 Bulletin 2020/28 (21) Application number: 18750449.3 (22) Date of filing: 10.08.2018

(51) International Patent Classification (IPC):  E04F 13/08(2006.01) A47B 57/20(2006.01) A47B 57/10(2006.01) E04B 2/74(2006.01) (86) International application number: PCT/EP2018/071777 (87) International publication number: WO 2019/042745 (07.03.2019 Gazette 2019/10)

(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: 01.09.2017 IT 201700098353 (71) Applicant: Leonardo S.r.L. 22060 Figino Serenza (IT)	(72) Inventor: CATTANEO, Carlo 22060 Figino Serenza (IT) (74) Representative: Martegani, Franco et al Franco Martegani S.r.l. Via Carlo Alberto, 41 20900 Monza 20900 Monza (IT)