(19)

(11)

EP 3 866 641 A1

(12)

(43) Date of publication: 25.08.2021 Bulletin 2021/34 (21) Application number: 19789774.7 (22) Date of filing: 15.10.2019

(51) International Patent Classification (IPC):  A47B 9/20(2006.01) A47B 27/14(2006.01) A47B 97/00(2006.01) A47B 21/02(2006.01) A47B 9/04(2006.01) (86) International application number: PCT/IB2019/058772 (87) International publication number: WO 2020/079583 (23.04.2020 Gazette 2020/17)

(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: 19.10.2018 IT 201800009619 (71) Applicant: Unifor S.p.A. 22078 Turate (CO) (IT)	(72) Inventor: MOLTENI, Piero 22078 Turate, Como (IT) (74) Representative: Leihkauf, Steffen Falk et al Jacobacci & Partners S.p.A. Via Senato, 8 20121 Milano 20121 Milano (IT)