EP 1090700 A2 20010411 - Formed strip and roll forming
Title (en)
Formed strip and roll forming
Title (de)
Umgeformter Blechstreifen und Umformung mittels Profilwalzvorrichtung
Title (fr)
Bande formée et formage par profileuse
Publication
Application
Priority
EP 99120154 A 19991008
Abstract (en)
A V-shaped metal strip has a U-shaped bottom having U-shaped inside and outside surfaces. Only the U-shaped inside surface is formed with a plurality of fold lines extending in a longitudinal direction of the strip and reducing the influence of springback. The fold lines may be arranged in a manner of bilateral symmetry with respect to an imaginary median plane bisecting the V-shaped cross section of the metal strip. <IMAGE>
IPC 1-7
IPC 8 full level
B21C 37/083 (2006.01); B21C 37/15 (2006.01); B21C 37/22 (2006.01); B21D 5/12 (2006.01); B21D 53/04 (2006.01); F28D 1/03 (2006.01)
CPC (source: EP)
B21C 37/083 (2013.01); B21C 37/155 (2013.01); B21C 37/225 (2013.01); B21D 5/12 (2013.01); B21D 53/04 (2013.01); F28D 1/0391 (2013.01)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 1090700 A2 20010411; EP 1090700 A3 20020515; EP 1090700 B1 20051228; DE 69929194 D1 20060202; DE 69929194 T2 20060622
DOCDB simple family (application)
EP 99120154 A 19991008; DE 69929194 T 19991008