EP 1369598 B1 20070926 - Electro-hydraulic lifting control device for industrial use vehicles
Title (en)
Electro-hydraulic lifting control device for industrial use vehicles
Title (de)
Elektrohydraulische Hubsteuervorrichtung für Flurförderfahrzeuge
Title (fr)
Dispositif électro-hydraulique de commande de levage pour véhicules de manutention
Publication
Application
Priority
DE 20208577 U 20020603
Abstract (en)
[origin: EP1369598A1] The device has a lifting branch with a three way flow regulator (R1) that is provided between a pressure source and a hydraulic cylinder to lift control. A lowering branch with a two-way flow regulator (R2) has a proportional magnet and a pressure balance (10). A redundancy-switching unit provided between the pilot pressure circuits of the regulators and a reservoir is actively operated between the closed and open positions.
IPC 8 full level
B66F 9/22 (2006.01); F15B 11/00 (2006.01); F15B 11/05 (2006.01); F15B 20/00 (2006.01)
CPC (source: EP US)
B66F 9/22 (2013.01 - EP US); F15B 11/003 (2013.01 - EP US); F15B 20/008 (2013.01 - EP US); F15B 2211/20538 (2013.01 - EP US); F15B 2211/3116 (2013.01 - EP US); F15B 2211/40576 (2013.01 - EP US); F15B 2211/413 (2013.01 - EP US); F15B 2211/4159 (2013.01 - EP US); F15B 2211/426 (2013.01 - EP US); F15B 2211/428 (2013.01 - EP US); F15B 2211/465 (2013.01 - EP US); F15B 2211/5059 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR IT SE
DOCDB simple family (publication)
EP 1369598 A1 20031210; EP 1369598 B1 20070926; EP 1369598 B2 20150819; DE 20208577 U1 20031211; DE 50308262 D1 20071108; JP 2004044795 A 20040212; JP 3785159 B2 20060614; US 2003221548 A1 20031204; US 6837045 B2 20050104
DOCDB simple family (application)
EP 03002659 A 20030211; DE 20208577 U 20020603; DE 50308262 T 20030211; JP 2003157986 A 20030603; US 44866603 A 20030530