(19)

(11)

EP 3 426 093 A1

(12)

(43) Date of publication: 16.01.2019 Bulletin 2019/03 (21) Application number: 17707315.2 (22) Date of filing: 27.02.2017

(51) International Patent Classification (IPC):  A47B 91/02(2006.01) (86) International application number: PCT/EP2017/054439 (87) International publication number: WO 2017/153188 (14.09.2017 Gazette 2017/37)

(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: 09.03.2016 IT UA20161495 U (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)