(19)

(11)

EP 2 834 023 A1

(12)

(43) Date of publication: 11.02.2015 Bulletin 2015/07 (21) Application number: 13718134.3 (22) Date of filing: 02.04.2013

(51) International Patent Classification (IPC):  B21D 5/02(2006.01) (86) International application number: PCT/EP2013/056861 (87) International publication number: WO 2013/149984 (10.10.2013 Gazette 2013/41)

(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 (30) Priority: 03.04.2012 TR 201203770 (71) Applicants: Durmazlar Makina Sanayi Ve Ticaret Anonim Sirketi Nilüfer Bursa (TR) Civan, Ahmet Bursa (TR)	(72) Inventor: CIVAN, Ahmet Bursa (TR) (74) Representative: Kaya, Erdem  Erdem Kaya Patent Inc. Konak Mah. Kudret Sok. Senyurt Is Merkezi No. 6 Daire: 8 16110 Nilüfer/Bursa 16110 Nilüfer/Bursa (TR)