EP 0696486 B1 20020522 - Method and device for bending sheet metal blanks
Title (en)
Method and device for bending sheet metal blanks
Title (de)
Verfahren und Vorrichtung zum Runden von Blechstücken
Title (fr)
Procédé et dispositif pour cintrer des pièces en tôle
Publication
Application
Priority
- CH 247394 A 19940810
- CH 324294 A 19941031
Abstract (en)
[origin: EP0696486A1] The plane rectangular pieces of metal are supplied in quick succession to a pressure point (P) between inner and outer rollers (12,13). Each piece in turn is plastically deformed to a desired constant radius (A) in passing from an entry wedge (11) to an exit guide (33) backed by a latching groove (38) and an arcuate supporting surface (39). The bent piece is then wrapped around the outside (21) of an inner mandrel (20) and elastically deformed (70) to a different shape for ejection. Its trailing end is snapped back (B) into the groove (38) as the next piece arrives at the pressure point.
IPC 1-7
IPC 8 full level
B21D 43/00 (2006.01); B21C 37/08 (2006.01); B21D 5/08 (2006.01); B21D 5/14 (2006.01); B21D 51/18 (2006.01); B21D 51/26 (2006.01); B23K 11/08 (2006.01)
CPC (source: EP US)
B21D 5/146 (2013.01 - EP US); B21D 51/2676 (2013.01 - EP US)
Designated contracting state (EPC)
CH DE GB IT LI NL
DOCDB simple family (publication)
EP 0696486 A1 19960214; EP 0696486 B1 20020522; BR 9503589 A 19960409; CN 1057948 C 20001101; CN 1121448 A 19960501; DE 59510211 D1 20020627; JP 2655635 B2 19970924; JP H0866733 A 19960312; KR 100344746 B1 20021102; TW 281647 B 19960721; US 5592844 A 19970114
DOCDB simple family (application)
EP 95108993 A 19950612; BR 9503589 A 19950809; CN 95109056 A 19950802; DE 59510211 T 19950612; JP 20472295 A 19950810; KR 19950024262 A 19950805; TW 84106182 A 19950815; US 49653295 A 19950629