EP 0983207 A1 20000308 - METHOD AND DEVICE FOR PRODUCING PACKET SPRING CORES
Title (en)
METHOD AND DEVICE FOR PRODUCING PACKET SPRING CORES
Title (de)
VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG VON TASCHENFEDERKERNEN
Title (fr)
PROCEDE ET DISPOSITIF POUR LA FABRICATION DE RESSORTS DE CAPITONNAGE POUR ALVEOLES
Publication
Application
Priority
- DE 19721482 A 19970523
- EP 9802547 W 19980430
Abstract (en)
[origin: DE19822838A1] The casings for the individual coils (30) of the spring core are connected e.g. welded together and then the springs (27) are inserted. After connection and before insertion of the springs the casings are formed into a tube and the overlapping ends of the casings are connected together. After insertion of the springs into the coils a welded seam (26) is provided between individual springs which connects opposite sides of the relevant casing together to form the pocket (28). The number of adjoining coils produced at the same time can be varied. After reaching a certain length of coils two welded seams are attached side by side at a slight distance.
IPC 1-7
IPC 8 full level
B68G 9/00 (2006.01)
CPC (source: EP)
B68G 9/00 (2013.01)
Citation (search report)
See references of WO 9852867A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
DE 19822838 A1 19981126; DE 19822838 C2 20001102; CA 2291036 A1 19981126; DE 19822839 A1 19990121; EP 0983207 A1 20000308; JP 2001525708 A 20011211; WO 9852867 A1 19981126
DOCDB simple family (application)
DE 19822838 A 19980522; CA 2291036 A 19980430; DE 19822839 A 19980522; EP 9802547 W 19980430; EP 98924248 A 19980430; JP 54986198 A 19980430