(19)

(11)

EP 3 973 212 A1

(12)

(43) Date of publication: 30.03.2022 Bulletin 2022/13 (21) Application number: 19737212.1 (22) Date of filing: 20.05.2019

(51) International Patent Classification (IPC):  F16H 59/02(2006.01) (52) Cooperative Patent Classification (CPC): F16H 2061/326; F16H 59/0204; F16H 2059/0295; F16H 2061/241 (86) International application number: PCT/IB2019/054159 (87) International publication number: WO 2020/234626 (26.11.2020 Gazette 2020/48)

(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 (71) Applicant: KA Group AG 8004 Zurich (CH)	(72) Inventors: HEDSTRÖM, Niklas 56532 Mullsjö (CH) HEDLUND, Andreas 56532 Mullsjö (CH) (74) Representative: Uexküll & Stolberg  Partnerschaft von Patent- und Rechtsanwälten mbB Beselerstraße 4 22607 Hamburg 22607 Hamburg (DE)