EP 2712688 B1 20201202 - Die cushion drive and method for operating a die cushion drive
Title (en)
Die cushion drive and method for operating a die cushion drive
Title (de)
Ziehkissenantrieb und Betriebsverfahren eines Ziehkissenantriebes
Title (fr)
Entraînement de coussin hydraulique et procédé de fonctionnement d'un entraînement de coussin hydraulique
Publication
Application
Priority
EP 12186610 A 20120928
Abstract (en)
[origin: EP2712688A1] The die cushion drive (1) has electric machine (5) for driving pump (8), and hydraulic cylinders (3,4) having chambers (21-24). The pump feeds chambers of the hydraulic cylinders. The hydraulic cylinders are mechanically connected to die cushion (2). An independent claim is included for method for driving die cushion drive.
IPC 8 full level
B21D 24/14 (2006.01)
CPC (source: EP US)
B21D 24/02 (2013.01 - US); B21D 24/14 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2712688 A1 20140402; EP 2712688 B1 20201202; ES 2853743 T3 20210917; US 2014090441 A1 20140403; US 9346095 B2 20160524
DOCDB simple family (application)
EP 12186610 A 20120928; ES 12186610 T 20120928; US 201314039698 A 20130927