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SE9903753D0 - Hydraulic lifting device - Google Patents

Hydraulic lifting device

Info

Publication number
SE9903753D0
SE9903753D0 SE9903753A SE9903753A SE9903753D0 SE 9903753 D0 SE9903753 D0 SE 9903753D0 SE 9903753 A SE9903753 A SE 9903753A SE 9903753 A SE9903753 A SE 9903753A SE 9903753 D0 SE9903753 D0 SE 9903753D0
Authority
SE
Sweden
Prior art keywords
actuator
hydraulic
lifting device
hydraulic lifting
lifting arrangement
Prior art date
Application number
SE9903753A
Other languages
Swedish (sv)
Other versions
SE520712C2 (en
SE9903753L (en
Inventor
Rutger Johansson
Original Assignee
Kentruck Ab
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
Application filed by Kentruck Ab filed Critical Kentruck Ab
Priority to SE9903753A priority Critical patent/SE520712C2/en
Publication of SE9903753D0 publication Critical patent/SE9903753D0/en
Priority to AT00971923T priority patent/ATE257810T1/en
Priority to AU10662/01A priority patent/AU1066201A/en
Priority to EP00971923A priority patent/EP1222134B1/en
Priority to DE60007767T priority patent/DE60007767T2/en
Priority to DK00971923T priority patent/DK1222134T3/en
Priority to PCT/SE2000/001934 priority patent/WO2001027018A1/en
Publication of SE9903753L publication Critical patent/SE9903753L/en
Publication of SE520712C2 publication Critical patent/SE520712C2/en

Links

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
    • B66F9/12—Platforms; Forks; Other load supporting or gripping members
    • B66F9/125—Platforms; Forks; Other load supporting or gripping members rotatable about a longitudinal axis

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Hydraulic Motors (AREA)
  • Lifting Devices For Agricultural Implements (AREA)
  • Jib Cranes (AREA)

Abstract

The invention relates to a hydraulic lifting apparatus (1) having a lifting arrangement (3, 12), which is vertically adjustable and which is arranged to be turnable about an axis (A). A first hydraulic actuator (16) is arranged to raise and lower the lifting arrangement (3, 12) and a second hydraulic actuator (30, 32) is arranged to turn the lifting arrangement (3, 12) about said axis (A), and both actuators are connected to a common hydraulic pressure source (46, 47). Furthermore, a change-over means (54) is arranged to connect one of said first actuator (16) and said second actuator (30, 32) to said hydraulic pressure source (46, 47). According to one embodiment of the invention, the second actuator is composed of two opposed hydraulic cylinders (30, 32) which have at least one common point of engagement (P1).
SE9903753A 1999-10-15 1999-10-15 Device for hydraulic lifting gear SE520712C2 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
SE9903753A SE520712C2 (en) 1999-10-15 1999-10-15 Device for hydraulic lifting gear
AT00971923T ATE257810T1 (en) 1999-10-15 2000-10-06 DEVICE IN A HYDRAULIC HOIST
AU10662/01A AU1066201A (en) 1999-10-15 2000-10-06 Device in hydraulic lifting apparatus
EP00971923A EP1222134B1 (en) 1999-10-15 2000-10-06 Device in hydraulic lifting apparatus
DE60007767T DE60007767T2 (en) 1999-10-15 2000-10-06 Device in a hydraulic lifting device
DK00971923T DK1222134T3 (en) 1999-10-15 2000-10-06 Device in hydraulic hoist
PCT/SE2000/001934 WO2001027018A1 (en) 1999-10-15 2000-10-06 Device in hydraulic lifting apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9903753A SE520712C2 (en) 1999-10-15 1999-10-15 Device for hydraulic lifting gear

Publications (3)

Publication Number Publication Date
SE9903753D0 true SE9903753D0 (en) 1999-10-15
SE9903753L SE9903753L (en) 2001-04-16
SE520712C2 SE520712C2 (en) 2003-08-12

Family

ID=20417395

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9903753A SE520712C2 (en) 1999-10-15 1999-10-15 Device for hydraulic lifting gear

Country Status (7)

Country Link
EP (1) EP1222134B1 (en)
AT (1) ATE257810T1 (en)
AU (1) AU1066201A (en)
DE (1) DE60007767T2 (en)
DK (1) DK1222134T3 (en)
SE (1) SE520712C2 (en)
WO (1) WO2001027018A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10342436B3 (en) * 2003-09-11 2005-03-17 Jungheinrich Ag Pump unit for manual fork lift truck has three-stage control valve with three no-return valves and switching valve

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB615265A (en) * 1946-06-21 1949-01-04 Electro Hydraulics Messier Ltd Improvements in or relating to lift trucks
US3876100A (en) * 1973-12-26 1975-04-08 Brudi Equipment Rotator for lift truck attachments
US4095714A (en) * 1976-11-08 1978-06-20 Little Giant Products, Inc. Load tilting attachment for an industrial truck
US4198189A (en) * 1978-07-27 1980-04-15 Brudi Equipment, Inc. Lift truck rotator with pressure-relieved valving
US5207550A (en) * 1991-03-14 1993-05-04 Valley Craft Drum handler
FR2702205B1 (en) * 1993-03-03 1995-05-05 Agrica Sarl Device for gripping and turning loads intended to cooperate with a lifting device.

Also Published As

Publication number Publication date
DE60007767T2 (en) 2005-01-27
AU1066201A (en) 2001-04-23
EP1222134B1 (en) 2004-01-14
SE520712C2 (en) 2003-08-12
DK1222134T3 (en) 2004-05-17
EP1222134A1 (en) 2002-07-17
WO2001027018A1 (en) 2001-04-19
ATE257810T1 (en) 2004-01-15
DE60007767D1 (en) 2004-02-19
SE9903753L (en) 2001-04-16

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Legal Events

Date Code Title Description
NUG Patent has lapsed