(19)

(11)

EP 3 906 126 A1

(12)

(43) Date of publication: 10.11.2021 Bulletin 2021/45 (21) Application number: 19907589.6 (22) Date of filing: 09.10.2019

(51) International Patent Classification (IPC):  B21D 5/04(2006.01) (52) Cooperative Patent Classification (CPC): B21D 5/04; B21D 5/0254; B21D 37/04 (86) International application number: PCT/TR2019/050845 (87) International publication number: WO 2020/142027 (09.07.2020 Gazette 2020/28)

(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: 31.12.2018 TR 201821384 (71) Applicant: Durmazlar Makina Sanayi Ve Ticaret Anonim Sirketi Bursa (TR)	(72) Inventors: MUTLU, Selime Nilufer/Bursa (TR) ULU, Ali Nilufer/Bursa (TR) (74) Representative: Kaya, Erdem  Erdem Kaya Patent Inc. Konak Mahallesi Kudret Sk. Elitpark Park Sit. Ofisler Apt. No: 12/27 16110 Nilüfer/Bursa 16110 Nilüfer/Bursa (TR)