EP 1157757 A1 20011128 - Mandrel for the winding and/or unwinding of coils
Title (en)
Mandrel for the winding and/or unwinding of coils
Title (de)
Dorn zum Wickeln und/oder Abwickeln von Bunden
Title (fr)
Mandrin pour l'enroulement et/ou déroulement de bobines
Publication
Application
Priority
EP 00490018 A 20000524
Abstract (en)
The mandrel (1) can be driven reversibly to allow the winding and unwinding of bobbins, particularly bobbins of sheet steel. The mandrel includes a grip (2) that operates using the principle of expansion. The expansion principle has a double expansion which allows the grip to have three pre-established different configurations. For each configuration a mechanical stop arrangement (4) is provided that ensures stability of the configuration.
IPC 1-7
IPC 8 full level
B21C 47/30 (2006.01)
CPC (source: EP)
B21C 47/30 (2013.01)
Citation (search report)
- [X] US 4352470 A 19821005 - BLAKESLEE FREDERICK R
- [X] US 1956906 A 19340501 - MIKAELSON ERIK W
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)
DOCDB simple family (application)
EP 00490018 A 20000524