EP 0551658 B2 20010718 - Method for straightening plates
Title (en)
Method for straightening plates
Title (de)
Verfahren zum Richten von Blech
Title (fr)
Méthode pour le dressage des tôles
Publication
Application
Priority
DE 4200922 A 19920116
Abstract (en)
[origin: EP0551658A1] In a method for straightening plates in which the plate is fed through straightening gaps formed by a plurality of adjustable upper and lower straightening rollers (12, 15) and set to correspond to the cross-section and nominal strength of the plate and, after initial maximum deformation, is then bent several times in opposite directions with large reductions in the degree of deformation, improved operation is obtained if the straightening region of a straightening machine is enlarged to encompass thicker plates by using a smaller number of straightening rollers (12, 15) in engagement and thus a higher roller pitch in the case of plate thicknesses which go beyond the nominal plate thickness of the straightening region. <IMAGE>
IPC 1-7
IPC 8 full level
B21D 1/02 (2006.01)
CPC (source: EP US)
B21D 1/02 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE DE ES FR GB IT LU NL SE
DOCDB simple family (publication)
EP 0551658 A1 19930721; EP 0551658 B1 19950621; EP 0551658 B2 20010718; AT E123977 T1 19950715; DE 4200922 A1 19930722; DE 59202621 D1 19950727; ES 2073853 T3 19950816; ES 2073853 T5 20011116; US 5412968 A 19950509
DOCDB simple family (application)
EP 92122121 A 19921230; AT 92122121 T 19921230; DE 4200922 A 19920116; DE 59202621 T 19921230; ES 92122121 T 19921230; US 23743094 A 19940503