(19)

(11)

EP 4 486 522 A1

(12)

(43) Date of publication: 08.01.2025 Bulletin 2025/02 (21) Application number: 22720288.4 (22) Date of filing: 04.03.2022

(51) International Patent Classification (IPC):  B21B 45/02(2006.01) (52) Cooperative Patent Classification (CPC): B21B 45/0284 (86) International application number: PCT/CZ2022/050024 (87) International publication number: WO 2023/165640 (07.09.2023 Gazette 2023/36)

(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: UVB Technik S.R.O. 74801 Hlucin (CZ)	(72) Inventors: BARTÁK, Ing. Tomas 74801 Hlu ín (CZ) BARTÁK, Mgr. Tomas 74801 Hlu ín (CZ) VITOSLAVSKÝ, Ing. Pavel 72000 Ostrava Hrabová (CZ) (74) Representative: Tomickova, Dana  PatentEnter s.r.o. Koliste 1965/13a 602 00 Brno 602 00 Brno (CZ)