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(11)

EP 4 288 232 A1

(12)

(43) Date of publication: 13.12.2023 Bulletin 2023/50 (21) Application number: 22706670.1 (22) Date of filing: 03.02.2022

(51) International Patent Classification (IPC):  B23B 5/36(2006.01) B23D 11/00(2006.01) B21D 28/36(2006.01) B23Q 11/10(2006.01) B23B 29/12(2006.01) B23D 13/00(2006.01) B23Q 5/04(2006.01) B23Q 27/00(2006.01) (52) Cooperative Patent Classification (CPC): B23Q 11/1015; B23D 11/00; B23D 13/00; B23B 29/12; B23B 5/36; B23B 2250/12; B23Q 2220/002 (86) International application number: PCT/IB2022/050935 (87) International publication number: WO 2022/167963 (11.08.2022 Gazette 2022/32)

(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: 05.02.2021 IT 202100002546 (71) Applicant: Brighetti Meccanica S.r.l. 40012 Calderara Di Reno (BO) (IT)	(72) Inventor: NEGRISOLI, Eleonora 41013 Castelfranco Emilia (MO) (IT) (74) Representative: Dall'Olio, Christian et al INVENTION S.r.l. Via delle Armi, 1 40137 Bologna 40137 Bologna (IT)