EP 1199115 A1 20020424 - Method and apparatus for bending sections and the like according to programmable radii of curvature
Title (en)
Method and apparatus for bending sections and the like according to programmable radii of curvature
Title (de)
Verfahren zum Biegen von Profilstangen oder dergleichen nach programmierbaren Krümmungsradien
Title (fr)
Procédé pour cintrer des barres profilées ou analogues selon des rayons de courbure programmables
Publication
Application
Priority
IT BO20000602 A 20001016
Abstract (en)
The method for bending sections and the like according to programmable radii of curvature is applied in an apparatus that includes a bending assembly (1) provided with a central abutment tool (3) and with an eccentric section bending post (4). The method entails actuating the discontinuous advancement of the section (2) to be bent in abutment with the central tool (3) in step with alternating angular strokes of the eccentric bending post (4), so as to make the section (2) follow the envelope of a virtual mandrel (5) whose radius of curvature can be programmed by virtue of an electronic processing means that is suitable to control or indicate the advancement of the section (2) to be bent and the angular strokes of the eccentric bending post (4). <IMAGE>
IPC 1-7
IPC 8 full level
B21D 7/12 (2006.01); B21D 11/12 (2006.01)
CPC (source: EP)
B21D 7/12 (2013.01); B21D 11/12 (2013.01)
Citation (search report)
- [X] EP 0334353 A1 19890927 - ZAHLAUS HELMUT [DE], et al
- [A] US 3991600 A 19761116 - DEL FABRO REMIGIO
- [A] US 4456036 A 19840626 - ROSSI PIERGIORGIO [CH]
- [A] US 3661002 A 19720509 - PEDDINGHAUS PAUL FERD JR
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
EP 1199115 A1 20020424; EP 1199115 A8 20020731; IT BO20000602 A0 20001016; IT BO20000602 A1 20020416
DOCDB simple family (application)
EP 01124568 A 20011015; IT BO20000602 A 20001016