EP0908413A2 - Chariot élévateur avec un dispositif de prise de la charge et procédé pour descendre le dispositif de prise de la charge - Google Patents

Chariot élévateur avec un dispositif de prise de la charge et procédé pour descendre le dispositif de prise de la charge Download PDF

Info

Publication number
EP0908413A2
EP0908413A2 EP98118873A EP98118873A EP0908413A2 EP 0908413 A2 EP0908413 A2 EP 0908413A2 EP 98118873 A EP98118873 A EP 98118873A EP 98118873 A EP98118873 A EP 98118873A EP 0908413 A2 EP0908413 A2 EP 0908413A2
Authority
EP
European Patent Office
Prior art keywords
hydraulic pump
suspension device
load
industrial truck
electric motor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP98118873A
Other languages
German (de)
English (en)
Other versions
EP0908413A3 (fr
EP0908413B1 (fr
Inventor
Hartmut Nedele
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Still Wagner GmbH and Co KG
Original Assignee
Still Wagner GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7844933&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0908413(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Still Wagner GmbH and Co KG filed Critical Still Wagner GmbH and Co KG
Publication of EP0908413A2 publication Critical patent/EP0908413A2/fr
Publication of EP0908413A3 publication Critical patent/EP0908413A3/fr
Application granted granted Critical
Publication of EP0908413B1 publication Critical patent/EP0908413B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/20—Means for actuating or controlling masts, platforms, or forks
    • B66F9/22—Hydraulic devices or systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/003—Systems with load-holding valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/14—Energy-recuperation means

Definitions

  • the invention relates to an industrial truck with a vertically movable Load suspension device, wherein a device for moving the vertical Load suspension device at least one hydraulic cylinder and at least one has a hydraulic pump which can be driven by an electric motor and which driven hydraulic pump has a pressure side and a suction side.
  • the invention also relates to a method for lowering a vertically movable Load suspension device on an industrial truck, the industrial truck a Device for vertically moving the load suspension device at least one Hydraulic cylinder and at least one driven by an electric motor Has hydraulic pump.
  • DC shunt motors are used with industrial trucks, especially with Drawbar-guided industrial trucks such as Pallet truck or pallet truck for Drive of the lifting device or for the travel drive is generally known.
  • the present invention has for its object a truck and a Method for lowering the load suspension device on the industrial truck To provide a quick lowering of the load suspension device without Allow load.
  • the suction side the driven hydraulic pump can be connected to the hydraulic cylinder. If the suction side of the hydraulic pump is connected to the hydraulic cylinder and the Hydraulic pump driven by the electric motor sucks the Hydraulic pump hydraulic oil from the hydraulic cylinder on. Lowering the This accelerates the load suspension device. Such an acceleration The lowering is particularly useful when on the load suspension device there is no load, since this means uncomfortable waiting times for the operator of the Industrial truck can be prevented. If on the Load suspension device, however, is a larger load that a lowering with sufficient speed, driving the hydraulic pump is not required. It is possible, for example, the non-electrically driven one Let the hydraulic pump run without power, or use it for energy recovery to take advantage of.
  • the hydraulic pump has a lifting mechanism the load suspension device has a predetermined main conveying direction, and has the hydraulic pump one during the lowering of the load suspension device Main conveying direction opposite conveying direction.
  • the direction of rotation of the Electric motor and thus the hydraulic pump is thus used to lower the Reverse load handler.
  • the hydraulic pump a predetermined main conveying direction for lifting the load suspension device on, and has the hydraulic pump during the lowering of the Load suspension device rectified to the main conveying direction Direction of conveyance.
  • the hydraulic cylinder with the suction side of the Hydraulic pump can be connected by means of a bypass line.
  • the bypass line is closable by means of a check valve which is used to lower the Load suspension device is opened.
  • the hydraulic pump with the hydraulic cylinder is expediently connecting line connectable to a tank by means of a drain line.
  • a part of the hydraulic oil flowing through the pump and / or part of that Hydraulic cylinder flowing oil flow can through the drain line into the tank flow out.
  • the lowering speed and the lifting speed of the Load suspension device can depend on the switching position of the drain valve can be adjusted continuously.
  • the drain valve is designed as a seat valve is.
  • Seat valves are simple and inexpensive to manufacture, on the one hand, and are due to their design, they are absolutely tight in the closed position, making them unintentional Lowering the load suspension device is safely avoided.
  • the drain valve and / or the electric motor are by means of an electric Pulse control unit controllable.
  • the electric motor is externally excited DC shunt motor is executed.
  • separately excited DC shunt motors can control the torque and speed independently can be adjusted from each other, whereby the use of the electric motor for Accelerating the lowering of the load suspension device is made possible.
  • the industrial truck as a pallet truck is preferably designed as a pedestrian-controlled high-lift truck.
  • a Drawbar pallet stacker it is necessary to move the Control the load handler with an electrical switch, because larger Switching elements cannot be arranged on the drawbar.
  • the lifting device of this type of truck usually has a relative light weight, so that the acceleration of the lowering movement is a special is of great importance.
  • the invention now enables fast Control the lowering of the load suspension device from the drawbar.
  • the object is achieved in that certain Control signals and / or operating parameters during the lowering of the Load suspension device using the hydraulic pump hydraulic oil from the Hydraulic cylinder is sucked.
  • Speed setpoints for lowering the load suspension device can be specified are, the electric motor at a low speed setpoint Hydraulic pump does not drive and at a high speed setpoint the Electric motor drives the hydraulic pump.
  • Figure 1 shows a hydraulic circuit for a lifting device industrial truck according to the invention.
  • a drivable by an electric motor 1 Hydraulic pump 2 is connected to a pressureless tank 4 via a line 3.
  • a hydraulic cylinder 5 For lifting the load suspension device by means of a hydraulic cylinder 5 drives the electric motor 1 turns on the hydraulic pump 2 in a direction in which the Pressure side of the hydraulic pump 2 is located in the drawing above.
  • the Hydraulic pump 2 thus pumps hydraulic oil from the tank 4 through the Check valve 7, which is in the position shown here, in the Line 6.
  • a continuously adjustable, designed as a seat valve Drain valve 8 can be a part of the hydraulic oil delivered with the hydraulic pump 2 in the depressurized tank 4 are drained. The rest of the pump 2 Hydraulic oil is supplied to the hydraulic cylinder 5. With the drain valve 8 can thus the lifting speed of the load suspension device can be set.
  • Hydraulic oil from the Hydraulic cylinder 5 drained. To do this, first use a switching magnet the check valve 7 opened. Hydraulic oil can then be pumped through the hydraulic pump 2 drain off, this oil flow the hydraulic pump 2 and thus the electric motor 1st drives. The electric motor 1 is operated as a generator, which for Energy recovery can be exploited. To lower the To accelerate the load suspension device, the drain valve 8 be opened, the speed of the lowering movement over the Opening width of the drain valve 8 can be adjusted. To a maximum To achieve lowering speed of the load suspension device According to the invention, the hydraulic pump 2 by the electric motor 1 in the direction driven, in which the suction side of the hydraulic pump 2 in the drawing above located. Hydraulic oil from hydraulic cylinder 5 is thus pumped 2 sucked in.
  • Electric motor 1 designed as a pulse-controlled direct current shunt motor become. It is also possible to use the electric motor as a three-phase asynchronous motor to execute.
  • FIG. 2 shows a further embodiment for the lifting device industrial truck according to the invention.
  • To raise the load handler is pump 2 a hydraulic oil from the tank 4 through two check valves 10, 11 pumped into the hydraulic cylinder 5.
  • One arranged in a bypass line 12 switchable check valve 13 is located in the shut-off Position.
  • the check valve 13 is opened.
  • the Hydraulic oil flowing out of the hydraulic cylinder 5 can then via the Bypass line through hydraulic pump 2a and drain valve 8 into tank 5 flow away.
  • the drain valve 8 With the drain valve 8, the lowering speed of Load suspension device set. This can, especially if the Load handling device is a large load, with the hydraulic pump 2a and the electric motor 1a energy can be recovered.
  • the lowering movement can be carried out by the hydraulic pump 2a Electric motor 1a are driven, which in this embodiment Suction side of the hydraulic pump 2a is located in the drawing below.
  • This one too Embodiment is an embodiment of the electric motor 1a as a DC shunt motor or useful as a three-phase asynchronous motor.
  • Figure 3a shows the sizes of the control signal 17 for the check valve 7 or Check valve 13, the control signal 18 for the drain valve 8 and the control signal 19th for the electric motor 1 or 1a above that specified by the operator Setpoint 20 for the lowering speed.
  • This diagram shows that the check valve 7 and the check valve 13 when the Load suspension device are always open.
  • the drain valve 8 will rise of the setpoint 20 for the lowering speed opened continuously. If the Setpoint for the lowering speed has almost reached its maximum value, is with the control signal 19, the electric motor 1 or 1a with the corresponding direction of rotation switched on to the lowering movement of the Support load suspension device.
  • Figure 3b shows the corresponding quantities of the control signal 17a for the Check valve 7 or the check valve 13, the control signal 18a for the drain valve 8 and the control signal 19a for the electric motor 1 or 1a above that by the Operator specified target value 20a for the lifting speed.
  • the Check valve 7 and the check valve 13 are always in during lifting the positions shown in Figures 1 and 2.
  • the electric motor 1 or 1a Always operate with the appropriate direction of rotation during lifting. With The drain valve 8 becomes the setpoint 20a for the lifting speed continuously closed further, reducing the actual lifting speed is increased.
  • All control signals according to Fig. 3a and 3b are preferably with or generated several pulse control units and are thus of pulse-shaped Voltages shown.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Structural Engineering (AREA)
  • Analytical Chemistry (AREA)
  • Civil Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Fluid-Pressure Circuits (AREA)
EP98118873A 1997-10-08 1998-10-06 Chariot élévateur avec un dispositif de prise de la charge Expired - Lifetime EP0908413B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19744429 1997-10-08
DE19744429A DE19744429A1 (de) 1997-10-08 1997-10-08 Flurförderfahrzeug mit einer Lastaufnahmevorrichtung und Verfahren zum Absenken der Lastaufnahmevorrichtung

Publications (3)

Publication Number Publication Date
EP0908413A2 true EP0908413A2 (fr) 1999-04-14
EP0908413A3 EP0908413A3 (fr) 2001-08-08
EP0908413B1 EP0908413B1 (fr) 2005-12-21

Family

ID=7844933

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98118873A Expired - Lifetime EP0908413B1 (fr) 1997-10-08 1998-10-06 Chariot élévateur avec un dispositif de prise de la charge

Country Status (2)

Country Link
EP (1) EP0908413B1 (fr)
DE (2) DE19744429A1 (fr)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1052215A2 (fr) * 1999-05-10 2000-11-15 Dambach Lagersysteme GmbH Dispositif de levage hydraulique
EP1067296A1 (fr) 1999-07-06 2001-01-10 HEILMEIER & WEINLEIN Fabrik für Oel-Hydraulik GmbH & Co. KG Module de levage électrohydraulique
WO2001081027A1 (fr) * 2000-04-20 2001-11-01 Procontrol Ag Procede et systeme d'entrainement destines a la commande/regulation du mouvement lineaire de compression/coulee
EP1193211A2 (fr) * 2000-09-28 2002-04-03 STILL WAGNER GmbH & Co KG Dispositif de levage hydraulique
EP1308415A2 (fr) * 2001-11-06 2003-05-07 Dambach Lagersysteme GmbH & Co. KG Dispositif de levage hydraulique en particulier pour chariots industriels alimentés par batterie et son procédé de commande
EP1389686A1 (fr) * 2002-08-13 2004-02-18 HAWE Hydraulik GmbH & Co. KG Module de freinage électrohydraulique
NL1031744C2 (nl) * 2006-05-03 2007-11-06 Stertil Bv Hefsysteem.
WO2011060844A1 (fr) * 2009-11-17 2011-05-26 Robert Bosch Gmbh Entraînement hydraulique à récupération d'énergie
AT506448B1 (de) * 2008-02-29 2012-05-15 Metso Paper Inc Hydrauliksystem des belastungszylinders
WO2013048803A1 (fr) * 2011-09-30 2013-04-04 Caterpillar Inc. Système hydraulique sans compteur présentant une protection de la pompe
CN104045028A (zh) * 2013-03-14 2014-09-17 雷蒙德股份有限公司 用于材料搬运车辆的液压再生系统和方法
EP3348514A1 (fr) * 2017-01-17 2018-07-18 The Raymond Corporation Systèmes de décharge de pression hydraulique variable et procédés pour un véhicule de manutention de matériaux
WO2021004657A1 (fr) * 2019-07-08 2021-01-14 Eaton Intelligent Power Limited Architectures de système hydraulique et vannes proportionnelles bidirectionnelles utilisables dans les architectures de système

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10033094B4 (de) * 2000-07-07 2005-12-08 Buchholz Hydraulik Gmbh Steuereinrichtung
JP4796350B2 (ja) * 2005-07-29 2011-10-19 カヤバ工業株式会社 回生機能付き流体圧制御回路
DE102012024647A1 (de) * 2012-12-17 2014-06-18 Jungheinrich Aktiengesellschaft Hydraulische Hubvorrichtung für ein batteriebetriebenes Flurförderzeug

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3507231A1 (de) * 1985-03-01 1986-09-04 Messerschmitt-Bölkow-Blohm GmbH, 2800 Bremen Anordnung zum gleichmaessigen hydraulischen anheben und absenken von plattformen
DE3602510A1 (de) * 1986-01-28 1987-07-30 Steinbock Gmbh Hydraulisches hubwerk
DE4140408A1 (de) * 1991-12-07 1993-06-09 Robert Bosch Gmbh, 7000 Stuttgart, De Elektrohydraulische steuereinrichtung
DE4219787C1 (de) * 1992-06-17 1994-01-05 Jungheinrich Ag Fahrzeug mit batterie-elektrischem Fahr-Antrieb, insbesondere Hublader
DE4402653A1 (de) * 1994-01-29 1995-08-03 Jungheinrich Ag Hydraulische Hubvorrichtung über drehbetriebene Flurförderzeuge
JPH0826697A (ja) * 1994-07-19 1996-01-30 Meikikou:Kk 油圧式テーブルリフト装置と該装置におけるテーブル昇降速度の制御方法
EP0777055A2 (fr) * 1995-11-02 1997-06-04 SME Elettronica S.p.A. Mécanisme d'actionnement pour actionneurs hydrauliques

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3507231A1 (de) * 1985-03-01 1986-09-04 Messerschmitt-Bölkow-Blohm GmbH, 2800 Bremen Anordnung zum gleichmaessigen hydraulischen anheben und absenken von plattformen
DE3602510A1 (de) * 1986-01-28 1987-07-30 Steinbock Gmbh Hydraulisches hubwerk
DE4140408A1 (de) * 1991-12-07 1993-06-09 Robert Bosch Gmbh, 7000 Stuttgart, De Elektrohydraulische steuereinrichtung
DE4219787C1 (de) * 1992-06-17 1994-01-05 Jungheinrich Ag Fahrzeug mit batterie-elektrischem Fahr-Antrieb, insbesondere Hublader
DE4402653A1 (de) * 1994-01-29 1995-08-03 Jungheinrich Ag Hydraulische Hubvorrichtung über drehbetriebene Flurförderzeuge
JPH0826697A (ja) * 1994-07-19 1996-01-30 Meikikou:Kk 油圧式テーブルリフト装置と該装置におけるテーブル昇降速度の制御方法
EP0777055A2 (fr) * 1995-11-02 1997-06-04 SME Elettronica S.p.A. Mécanisme d'actionnement pour actionneurs hydrauliques

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 05, 31. Mai 1996 (1996-05-31) & JP 08 026697 A (MEIKIKOU:KK), 30. Januar 1996 (1996-01-30) *

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1052215A2 (fr) * 1999-05-10 2000-11-15 Dambach Lagersysteme GmbH Dispositif de levage hydraulique
DE19921629A1 (de) * 1999-05-10 2000-11-16 Dambach Lagersysteme Gmbh Hydraulische Hubvorrichtung
DE19921629B4 (de) * 1999-05-10 2005-05-25 Dambach Lagersysteme Gmbh Hydraulische Hubvorrichtung
EP1052215A3 (fr) * 1999-05-10 2005-09-21 Dambach Lagersysteme GmbH Dispositif de levage hydraulique
EP1067296A1 (fr) 1999-07-06 2001-01-10 HEILMEIER & WEINLEIN Fabrik für Oel-Hydraulik GmbH & Co. KG Module de levage électrohydraulique
WO2001081027A1 (fr) * 2000-04-20 2001-11-01 Procontrol Ag Procede et systeme d'entrainement destines a la commande/regulation du mouvement lineaire de compression/coulee
EP1193211A2 (fr) * 2000-09-28 2002-04-03 STILL WAGNER GmbH & Co KG Dispositif de levage hydraulique
EP1193211A3 (fr) * 2000-09-28 2005-12-14 STILL WAGNER GmbH & Co KG Dispositif de levage hydraulique
EP1308415A2 (fr) * 2001-11-06 2003-05-07 Dambach Lagersysteme GmbH & Co. KG Dispositif de levage hydraulique en particulier pour chariots industriels alimentés par batterie et son procédé de commande
EP1308415A3 (fr) * 2001-11-06 2005-05-25 Dambach Lagersysteme GmbH & Co. KG Dispositif de levage hydraulique en particulier pour chariots industriels alimentés par batterie et son procédé de commande
EP1389686A1 (fr) * 2002-08-13 2004-02-18 HAWE Hydraulik GmbH & Co. KG Module de freinage électrohydraulique
GB2451986B (en) * 2006-05-03 2010-03-17 Stertil Bv Lifting system
WO2007126310A1 (fr) * 2006-05-03 2007-11-08 Stertil B.V. Systeme de levage
GB2451986A (en) * 2006-05-03 2009-02-18 Stertil Bv Lifting system
NL1031744C2 (nl) * 2006-05-03 2007-11-06 Stertil Bv Hefsysteem.
US8246008B2 (en) 2006-05-03 2012-08-21 Stertil B.V. Lifting system
AT506448B1 (de) * 2008-02-29 2012-05-15 Metso Paper Inc Hydrauliksystem des belastungszylinders
WO2011060844A1 (fr) * 2009-11-17 2011-05-26 Robert Bosch Gmbh Entraînement hydraulique à récupération d'énergie
WO2013048803A1 (fr) * 2011-09-30 2013-04-04 Caterpillar Inc. Système hydraulique sans compteur présentant une protection de la pompe
US8966891B2 (en) 2011-09-30 2015-03-03 Caterpillar Inc. Meterless hydraulic system having pump protection
EP2778113A1 (fr) * 2013-03-14 2014-09-17 The Raymond Corporation Système et procédé de régénération hydraulique pour véhicule de manutention de matériaux
US20140260222A1 (en) * 2013-03-14 2014-09-18 The Raymond Corporation Hydraulic Regeneration System and Method for a Material Handling Vehicle
CN104045028A (zh) * 2013-03-14 2014-09-17 雷蒙德股份有限公司 用于材料搬运车辆的液压再生系统和方法
US9360023B2 (en) * 2013-03-14 2016-06-07 The Raymond Corporation Hydraulic regeneration system and method for a material handling vehicle
CN104045028B (zh) * 2013-03-14 2017-12-12 雷蒙德股份有限公司 用于材料搬运车辆的液压系统和方法
AU2014200737B2 (en) * 2013-03-14 2017-12-14 The Raymond Corporation Hydraulic regeneration system and method for a material handling vehicle
EP3348514A1 (fr) * 2017-01-17 2018-07-18 The Raymond Corporation Systèmes de décharge de pression hydraulique variable et procédés pour un véhicule de manutention de matériaux
US10844880B2 (en) 2017-01-17 2020-11-24 The Raymond Corporation Variable hydraulic pressure relief systems and methods for a material handling vehicle
US11118607B2 (en) 2017-01-17 2021-09-14 The Raymond Corporation Variable hydraulic pressure relief systems and methods for a material handling vehicle
WO2021004657A1 (fr) * 2019-07-08 2021-01-14 Eaton Intelligent Power Limited Architectures de système hydraulique et vannes proportionnelles bidirectionnelles utilisables dans les architectures de système

Also Published As

Publication number Publication date
EP0908413A3 (fr) 2001-08-08
DE59813292D1 (de) 2006-01-26
EP0908413B1 (fr) 2005-12-21
DE19744429A1 (de) 1999-04-22

Similar Documents

Publication Publication Date Title
EP0630853B1 (fr) Equipement de levage hydraulique pour chariots de manutention mûs par batterie ou analogues
EP0908413A2 (fr) Chariot élévateur avec un dispositif de prise de la charge et procédé pour descendre le dispositif de prise de la charge
EP0230884B1 (fr) Dispositif de levage hydraulique
EP3459904B1 (fr) Chariot de manutention, système hydraulique pour un chariot de manutention et procédé de fonctionnement d'un système hydraulique
DE112007001092T5 (de) Hebesystem
DE3227630A1 (de) Hydraulische steueranlage fuer industrielle fahrzeuge
EP1577257A2 (fr) Appareil de levage hydraulique pour chariot élévateur électrique
DE3012844A1 (de) Schaltkreis fuer eine hydraulische lasthebemaschine
EP1193211B1 (fr) Dispositif de levage hydraulique
DE102007045311A1 (de) Zinkenverstelleinrichtung für ein Flurförderzeug
DE69002915T2 (de) Sammelfahrzeug, Gerät zum Gebrauch in dem Fahrzeug und Verfahren zum Sammeln von Material.
DE19528415A1 (de) Verfahren zum Betreiben eines Flurförderzeugs und dafür vorgesehenes Flurförderzeug
EP1067296B1 (fr) Module de levage électrohydraulique
DE4324464C2 (de) Hydraulische Hubvorrichtung für batteriebetriebene Flurförderzeuge
DE19831828A1 (de) Hydrauliksystem für ein Flurförderzeug
EP0873901A2 (fr) Entraínement pour un appareil de travail mobile
DE3608536C1 (de) Steuervorrichtung fuer die Betaetigung eines hydraulischen Seilwindenantriebes fuer einen Schraegaufzug
DE19800985A1 (de) Hydraulische Anlage für ein ein aufklappbares Verdeck aufweisendes Kraftfahrzeug
DE2803872A1 (de) Lenkvorrichtung
DE102007059270A1 (de) Steuereinrichtung für eine Hub- und Senksteuerung
DE19816755B4 (de) Scherenhubwagen mit einem elektrohydraulischen Antrieb
DE19748782A1 (de) Hydraulische Hubvorrichtung für batteriegetriebene Flurförderzeuge oder dergleichen
EP1188709A2 (fr) Dispositif de levage
DE9309525U1 (de) Hydraulische Hubvorrichtung für batteriegetriebene Flurförderzeuge o.dgl.
WO2011035892A1 (fr) Chariot cavalier pour utilisation dans des terminaux à conteneurs et pour des taches générales de transport

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR GB IT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20020115

AKX Designation fees paid

Free format text: DE FR GB IT SE

17Q First examination report despatched

Effective date: 20040211

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RTI1 Title (correction)

Free format text: LIFT TRUCK WITH A LOAD GRASPING DEVICE

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20051221

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REF Corresponds to:

Ref document number: 59813292

Country of ref document: DE

Date of ref document: 20060126

Kind code of ref document: P

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20060323

ET Fr: translation filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20061004

Year of fee payment: 9

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

26 Opposition filed

Opponent name: JUNGHEINRICH AKTIENGESELLSCHAFT

Effective date: 20060921

PLBB Reply of patent proprietor to notice(s) of opposition received

Free format text: ORIGINAL CODE: EPIDOSNOBS3

PLCK Communication despatched that opposition was rejected

Free format text: ORIGINAL CODE: EPIDOSNREJ1

PLBN Opposition rejected

Free format text: ORIGINAL CODE: 0009273

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: OPPOSITION REJECTED

27O Opposition rejected

Effective date: 20070918

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20071027

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20071019

Year of fee payment: 10

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20071006

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20071006

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20090630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20081006

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20081031

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20101021

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20101223

Year of fee payment: 13

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 59813292

Country of ref document: DE

Owner name: KION WAREHOUSE SYSTEMS GMBH, DE

Free format text: FORMER OWNER: STILL WAGNER GMBH, 72766 REUTLINGEN, DE

Effective date: 20110405

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120501

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59813292

Country of ref document: DE

Effective date: 20120501

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20111007

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 59813292

Country of ref document: DE

Representative=s name: PATENTSHIP PATENTANWALTSGESELLSCHAFT MBH, DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 59813292

Country of ref document: DE

Representative=s name: PATENTSHIP PATENTANWALTSGESELLSCHAFT MBH, DE