(19)

(11)

EP 4 271 496 A1

(12)

(43) Date of publication: 08.11.2023 Bulletin 2023/45 (21) Application number: 21845071.6 (22) Date of filing: 28.12.2021

(51) International Patent Classification (IPC):  A63H 33/04(2006.01) (52) Cooperative Patent Classification (CPC): A63H 33/046; A63H 33/042 (86) International application number: PCT/EP2021/087726 (87) International publication number: WO 2022/144358 (07.07.2022 Gazette 2022/27)

(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: 31.12.2020 BE 202006010 (71) Applicant: Smart NV 2550 Kontich (BE)	(72) Inventor: VANDOREN, Rolf 2550 Kontich (BE) (74) Representative: Brantsandpatents bv  Pauline Van Pottelsberghelaan 24 9051 Ghent 9051 Ghent (BE)