(19)

(11)

EP 4 003 541 A1

(12)

(43) Date of publication: 01.06.2022 Bulletin 2022/22 (21) Application number: 21726191.6 (22) Date of filing: 23.04.2021

(51) International Patent Classification (IPC):  A63B 21/005(2006.01) A63B 21/00(2006.01) A63B 21/078(2006.01) A63B 23/12(2006.01) (52) Cooperative Patent Classification (CPC): A63B 21/078; A63B 21/154; A63B 21/0058; A63B 21/4035; A63B 21/4045; A63B 23/1209; A63B 2220/805; A63B 2220/833; A63B 21/0783; A63B 2214/00 (86) International application number: PCT/IB2021/053364 (87) International publication number: WO 2021/214723 (28.10.2021 Gazette 2021/43)

(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: 23.04.2020 IT 202000008707 (71) Applicant: Cristofanelli, Stefano 36015 Schio (VI) (IT)	(72) Inventor: Cristofanelli, Stefano 36015 Schio (VI) (IT) (74) Representative: Bonini, Ercole  Studio Bonini Srl Corso Fogazzaro, 8 36100 Vicenza 36100 Vicenza (IT)