(19)
(11)
EP 3 579 988 A1
(12)
(43)
Date of publication:
18.12.2019
Bulletin 2019/51
(21)
Application number:
17896017.5
(22)
Date of filing:
19.10.2017
(51)
International Patent Classification (IPC):
B21D
5/08
(2006.01)
(86)
International application number:
PCT/SE2017/000040
(87)
International publication number:
WO 2018/147773
(
16.08.2018
Gazette 2018/33)
(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:
MA MD
(30)
Priority:
07.02.2017
SE 1700021
(71)
Applicant:
Ingvest AB
784 54 Borlänge (SE)
(72)
Inventor:
INGVARSSON, Lars
S-78454 Borlänge (SE)
(74)
Representative:
Bjerkéns Patentbyrå KB (Gävle)
Box 1274
801 37 Gävle
801 37 Gävle (SE)
(54)
METHOD AND ARRANGEMENT FOR ROLL-FORMING A PLANE PRODUCT WITH VARYING WIDTH