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(11)

EP 3 439 506 A1

(12)

(43) Date of publication: 13.02.2019 Bulletin 2019/07 (21) Application number: 17716046.2 (22) Date of filing: 05.04.2017

(51) International Patent Classification (IPC):  A47B 95/00(2006.01) (86) International application number: PCT/EP2017/058061 (87) International publication number: WO 2017/174628 (12.10.2017 Gazette 2017/41)

(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: 08.04.2016 IT UA20162415 (71) Applicant: Leonardo S.r.L. 22060 Figino Serenza (CO) (IT)	(72) Inventor: CATTANEO, Carlo 22060 Figino Serenza (CO) (IT) (74) Representative: Martegani, Franco et al Via Carlo Alberto 41 20900 Monza 20900 Monza (IT)