EP 3459904 B1 20210804 - INDUSTRIAL TRUCK, HYDRAULIC SYSTEM FOR AN INDUSTRIAL TRUCK AND METHOD OF OPERATING A HYDRAULIC SYSTEM
Title (en)
INDUSTRIAL TRUCK, HYDRAULIC SYSTEM FOR AN INDUSTRIAL TRUCK AND METHOD OF OPERATING A HYDRAULIC SYSTEM
Title (de)
FLURFÖRDERZEUG, HYDRAULISCHES SYSTEM FÜR EIN FLURFÖRDERZEUG UND VERFAHREN ZUM BETREIBEN EINES HYDRAULISCHEN SYSTEMS
Title (fr)
CHARIOT DE MANUTENTION, SYSTÈME HYDRAULIQUE POUR UN CHARIOT DE MANUTENTION ET PROCÉDÉ DE FONCTIONNEMENT D'UN SYSTÈME HYDRAULIQUE
Publication
Application
Priority
DE 102017121818 A 20170920
Abstract (en)
[origin: US2019084816A1] The invention relates to an industrial truck (2) with a lift mast (4), a hydraulic system (10) as well as a method for operating a hydraulic system (10). The lift mast (4) of the industrial truck (2) is driven by a mast lift cylinder (12) and comprises at least one mast lift stage (42, 42). Furthermore, a free lift stage is present that is driven by a free lift cylinder (8) with which a load receiving means (6) can be displaced along the lift mast (4). The industrial truck (2) comprises a hydraulic system (10) for supplying the at least one mast lift cylinder (12) and the at least one free lift cylinder (8) with a hydraulic fluid (14), wherein the hydraulic system (10) is configured to at least at times simultaneously actuate the at least one mast lift cylinder (12) and the at least one free lift cylinder (8) in load lifting operation and/or in load lowering operation.
IPC 8 full level
CPC (source: CN EP US)
B66F 9/07504 (2013.01 - CN); B66F 9/08 (2013.01 - CN EP); B66F 9/22 (2013.01 - CN EP US); F15B 11/08 (2013.01 - CN); F15B 2211/4053 (2013.01 - US); F15B 2211/71 (2013.01 - US)
Citation (opposition)
Opponent : STILL GmbH
- EP 3336051 A1 20180620 - JUNGHEINRICH AG [DE]
- DE 102009011865 A1 20100916 - JUNGHEINRICH AG [DE]
- WO 2009141242 A1 20091126 - BT PRODUCTS AB [SE], et al
- EP 1600420 A1 20051130 - RAYMOND CORP [US]
- EP 1593645 B1 20120808 - TOYOTA MATERIAL HANDLING EUROP AB [SE]
- DE 102016103256 A1 20170629 - STILL GMBH [DE]
- US 2011139546 A1 20110616 - LOOK LENA [SE]
- EP 1369377 A2 20031210 - BT IND [SE]
- DE 4305192 A1 19930826 - LINDE AG [DE]
- EP 2465812 A1 20120620 - BT PRODUCTS AB [SE]
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 3459904 A1 20190327; EP 3459904 B1 20210804; CN 109534238 A 20190329; CN 109534238 B 20220104; DE 102017121818 A1 20190321; US 11427451 B2 20220830; US 11905153 B2 20240220; US 2019084816 A1 20190321; US 2022348447 A1 20221103
DOCDB simple family (application)
EP 18194815 A 20180917; CN 201811096977 A 20180920; DE 102017121818 A 20170920; US 201816132568 A 20180917; US 202217867209 A 20220718