EP2033932A1 - Chariot élévateur - Google Patents

Chariot élévateur Download PDF

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Publication number
EP2033932A1
EP2033932A1 EP08015253A EP08015253A EP2033932A1 EP 2033932 A1 EP2033932 A1 EP 2033932A1 EP 08015253 A EP08015253 A EP 08015253A EP 08015253 A EP08015253 A EP 08015253A EP 2033932 A1 EP2033932 A1 EP 2033932A1
Authority
EP
European Patent Office
Prior art keywords
lifting
truck according
drives
platform
truck
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
EP08015253A
Other languages
German (de)
English (en)
Other versions
EP2033932B1 (fr
Inventor
Paul Rickers
Michael Von Forstner
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.)
Jungheinrich AG
Original Assignee
Jungheinrich AG
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 Jungheinrich AG filed Critical Jungheinrich AG
Publication of EP2033932A1 publication Critical patent/EP2033932A1/fr
Application granted granted Critical
Publication of EP2033932B1 publication Critical patent/EP2033932B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B66F9/08—Masts; Guides; Chains
    • 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
    • B66F9/07545—Overhead guards

Definitions

  • the invention relates to a high-lift truck according to the preamble of patent claim 1.
  • High-lift trucks naturally require a high-lift device.
  • This is usually formed by height-adjustable masts.
  • the task of the masts is to take loads to be transported in different height positions or store and move the lifting load vertically.
  • Known masts consist in principle of an outer frame in which a load handling device moves directly, as in non-telescoping single mast. Such a construction is used only little. In most known cases, one or more masts move in the mast. Thus, triple or quadruple telescopic scaffolds have become known.
  • the individual mast frames usually consist of two lateral support profiles, which are connected at the top and bottom by transverse struts.
  • the transmission of the bending load resulting from the lifting load is carried out between the nested mast frames usually via rollers, which are arranged at the top and bottom of the mast frame profiles.
  • the drive for a height adjustment is usually by means of hydraulic lifting cylinder, which generate a relative movement between the individual mast frame.
  • the construction is such that the mast is rigid in its main loading direction. Excessive deformation leads to the longitudinal displacement of the center of gravity of the load and thus to an increase in the tilting torque acting on the industrial truck. As a result, the stability of the vehicle is negatively affected.
  • the necessary bending stiffness is achieved by the selection of lifting frame profiles with large area moments of inertia and by complex rear link constructions, which requires a considerable amount of material and thus a high weight and a great deal of effort.
  • a lateral bending which is caused by eccentric (asymmetrical) center of gravity of the lifting load or by dynamic lateral mass forces.
  • the lateral bending load can become dominant. Due to the resulting lateral bending of the mast, the lateral Hublasthebelarm is increased and thus also the increased lateral tilting moment.
  • the rigidity of the mast frame against lateral bending is usually achieved in that the two lateral support profiles of the mast frame are connected by massive transverse reinforcements (ladder-shaped). The elaborate transverse stiffeners prevent visibility through the mast frame and increase its weight.
  • Out DE 101 33 585 A1 is a compensation device for a stationary mast of a mast known, which compensates for a caused by the load torque L Kunststoffsverbiegung.
  • DE 103 49 123 A1 is a hoist described, are applied to the two side-mounted lifting cylinder of a conventional mast with different hydraulic pressure to absorb lateral bending moments by a couple of forces.
  • the invention has for its object to provide a high-lift truck, the lifting device suffers a minimal bending deformation in the longitudinal and transverse directions and yet characterized by a low cost of materials and good transparency properties.
  • At least three independently acting linear lifting drives are provided, each of which has a lower, fixed in the linear direction and an upper, at least in the linear direction movable part.
  • the lower parts are connected to the frame so that their support points in the longitudinal and transverse directions the truck have a distance from each other, while their height-adjustable upper parts are connected to a rigid, preferably horizontal lifting platform.
  • the load handling device is attached to the lifting platform.
  • the lifting drives are arranged symmetrically to the vehicle longitudinal axis.
  • two lifting drives are arranged in the front region and a lifting drive in the rear region of the frame.
  • the load-receiving means is suspended according to a further embodiment of the invention by means of at least one linear lifting drive on the lifting platform.
  • This lifting device can also be understood as Initialhub nails.
  • the basic idea of the invention is to counteract the load moments near their introduction region at the load-near end of the extended lifting device by force pairs. As a result, in the hoist on elongate rigid structures completely or partially be dispensed with.
  • the immovable lower parts of the lifting drives can have a guide for the load-receiving device.
  • the lifting drives are designed for receiving different axial forces. It is also provided according to a further embodiment of the invention that the lifting drives generate both tensile and compressive forces. In this way, it is also possible to absorb moments of loads whose point of application lies outside the area spanned by the lifting drives.
  • the stability of the lifting system is achieved by synchronous extension paths of the individual lifting drives.
  • a control or regulating device can be provided, which ensures that the extension paths of the individual linear actuators are the same.
  • the spatial angular position of the platform structure at the upper end of the linear actuators can serve instead of the extension paths.
  • a desired inclination of the lifting system can be adjusted.
  • the connection of the moving parts the lifting drives on the lifting platform is not rigid, but more or less articulated.
  • linear actuators conventional linear lifting devices can be used, preferably hydraulic cylinders.
  • the hydraulic cylinders may be hinged to the frame and platform as in a hexapod. They are then inclined to the vertical.
  • a further horizontal connecting structure is provided at the upper end of the stationary part of the lifting drives to effect a suitable stiffening.
  • This can also serve as a protective roof for a cab of the truck.
  • FIG. 1 a high-lift truck 10 can be seen with a vehicle frame 12, which is on a four-wheel drive 14 and on which a control and regulating device is arranged for a lifting drive.
  • a vehicle frame 12 On the front end of the vehicle frame 12, two lifting cylinders 16, 18 are supported.
  • Another lifting cylinder 20 is supported at the rear end of the vehicle frame 12.
  • the lifting cylinders 16, 18 are arranged symmetrically to the longitudinal axis of the vehicle 10, wherein the rear lifting cylinder 20 is arranged on the longitudinal axis.
  • the piston rods of the lifting cylinders 16 to 20 are connected to a lifting platform 22. The connection is more or less articulated.
  • the lifting cylinders 16 to 20 are double-acting, ie they can generate both tensile and compressive forces.
  • the actuation of the lifting cylinders 16, 18 and 20 is effected by a hydraulic supply system and a control or regulating device, not shown, which ensure that the lifting cylinders are extended synchronously.
  • a control variable for example, the path of the piston rods or the platform can be selected.
  • the spatial angular position of the platform 22 can serve.
  • a load-receiving means 24 in the form of a forklift is attached by an Initialhub issued 26 on the lifting platform 22 between the lifting cylinders 16, 18.
  • a further connecting structure can be provided at the upper end, which at the same time forms a driver's protection roof.
  • a guide can be provided for the load-receiving means 24 on the fixed parts of the lifting cylinders 16, 18.
  • FIG. 2 a Hochregalvertikalkommissionierhus is indicated, the frame 12a is provided with a chassis 14a. Stand on the frame 12a as in FIG. 1 arranged in the triangle three lifting cylinders, which are connected at the upper end to the platform 22. On the platform 22 is a lifting platform 30 attached to the driver's seat. At the lifting platform is also as generally indicated at 32, a swivel unit with additional stroke. Such swivel units are well known and therefore the swivel unit 32 should not be further explained.

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)
EP08015253.1A 2007-09-08 2008-08-29 Chariot élévateur Expired - Fee Related EP2033932B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200710042878 DE102007042878A1 (de) 2007-09-08 2007-09-08 Hochhubflurförderzeug

Publications (2)

Publication Number Publication Date
EP2033932A1 true EP2033932A1 (fr) 2009-03-11
EP2033932B1 EP2033932B1 (fr) 2015-07-08

Family

ID=39967539

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08015253.1A Expired - Fee Related EP2033932B1 (fr) 2007-09-08 2008-08-29 Chariot élévateur

Country Status (3)

Country Link
EP (1) EP2033932B1 (fr)
CN (1) CN101417777B (fr)
DE (1) DE102007042878A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102745623A (zh) * 2012-06-29 2012-10-24 安徽德摩新能源叉车股份有限公司 液压搬运车
CN108454674A (zh) * 2018-05-18 2018-08-28 陈芳 一种高压真空断路器的转运小车

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103288009B (zh) * 2012-03-02 2015-10-28 同济大学 一种小型电动叉车
DE202014004566U1 (de) 2014-05-30 2014-07-16 Friedrich Ganzmann Hubvorrichtung zum Ankoppeln an die Wechselvorrichtungen von Hofladern, Frontladern und Dreipunktgestängen zur Erhöhung der Hubhöhe der Arbeitsgeräte
CN103979463B (zh) * 2014-05-30 2016-05-04 太仓市璜泾永乐农机作业专业合作社 一种升降平衡的高架叉车
CN112661060B (zh) * 2020-12-14 2022-03-22 湖南工程学院 一种新型美术作品悬挂展示装置
CN112830140B (zh) * 2020-12-31 2022-09-30 深圳市海柔创新科技有限公司 升降装置及搬运机器人

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2020508A1 (de) * 1969-04-26 1970-12-10 Dso Balkancar Magazinstapler
FR2385638A1 (fr) * 1977-03-28 1978-10-27 Smith Raymond Mecanisme elevateur articule
GB2053157A (en) * 1979-07-19 1981-02-04 Fmc Corp Loading and unloading of aircraft cargo
DE3016156A1 (de) 1980-04-26 1981-11-05 Jungheinrich Unternehmensverwaltung Kg, 2000 Hamburg Hubgeruest mit wenigstens einem ausfahrbaren teil und hubfahrzeug mit einem solchen hubgeruest
DE3101953A1 (de) 1981-01-22 1982-08-05 Jungheinrich Unternehmensverwaltung Kg, 2000 Hamburg "hubgeruest und hubfahrzeug mit einem solchen hubgeruest"
DE4038730A1 (de) 1990-12-05 1992-06-11 Jungheinrich Ag Hubgeruest, insbesondere fuer hubfahrzeuge
DE10133585A1 (de) 2000-07-24 2002-05-02 Linde Ag Hubgerüst für ein Flurförderzeug
JP2003201095A (ja) * 2002-01-07 2003-07-15 Toshiba Corp オーダーピッカー
DE10349123A1 (de) 2003-10-22 2005-05-19 Still Wagner Gmbh & Co Kg Hubwerk, insbesondere für einen Hochregalstapler
WO2006063453A1 (fr) * 2004-12-15 2006-06-22 Tld (Canada) Inc. Chargeur d'avion
DE102005050733A1 (de) 2005-10-22 2007-04-26 Jungheinrich Ag Hubmast für Stapler
DE202007009153U1 (de) * 2007-06-29 2007-09-13 Focks, Hubert Hydraulik-Zylinder-Anordnung

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3570695A (en) * 1969-01-21 1971-03-16 William H Schwartz Vehicle for carrying and stacking containers
SE449091B (sv) * 1984-11-19 1987-04-06 Hadar Jansson Kombinationstruck av typen grensletruck
FR2597460B1 (fr) * 1986-04-18 1988-07-22 Voltair Engin mobile de transport et manutention d'objets, plus particulierement pour cimetiere
US5011363A (en) * 1989-12-05 1991-04-30 Crown Equipment Corporation Extend and retract control for fork lifts
JPH0725597A (ja) * 1993-07-15 1995-01-27 Kyowa Exeo Corp 吊り込み装置
FR2822145A1 (fr) * 2001-03-19 2002-09-20 Acces Batiment Manutention Ind Nacelle elevatrice avec plate-forme et structure de support de charge associee
DE102005050893A1 (de) * 2005-10-21 2007-04-26 Consens Transport Systeme Gmbh Flurförderer zum Transportieren von Containern

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2020508A1 (de) * 1969-04-26 1970-12-10 Dso Balkancar Magazinstapler
FR2385638A1 (fr) * 1977-03-28 1978-10-27 Smith Raymond Mecanisme elevateur articule
GB2053157A (en) * 1979-07-19 1981-02-04 Fmc Corp Loading and unloading of aircraft cargo
DE3016156A1 (de) 1980-04-26 1981-11-05 Jungheinrich Unternehmensverwaltung Kg, 2000 Hamburg Hubgeruest mit wenigstens einem ausfahrbaren teil und hubfahrzeug mit einem solchen hubgeruest
DE3101953A1 (de) 1981-01-22 1982-08-05 Jungheinrich Unternehmensverwaltung Kg, 2000 Hamburg "hubgeruest und hubfahrzeug mit einem solchen hubgeruest"
DE4038730A1 (de) 1990-12-05 1992-06-11 Jungheinrich Ag Hubgeruest, insbesondere fuer hubfahrzeuge
DE10133585A1 (de) 2000-07-24 2002-05-02 Linde Ag Hubgerüst für ein Flurförderzeug
JP2003201095A (ja) * 2002-01-07 2003-07-15 Toshiba Corp オーダーピッカー
DE10349123A1 (de) 2003-10-22 2005-05-19 Still Wagner Gmbh & Co Kg Hubwerk, insbesondere für einen Hochregalstapler
WO2006063453A1 (fr) * 2004-12-15 2006-06-22 Tld (Canada) Inc. Chargeur d'avion
DE102005050733A1 (de) 2005-10-22 2007-04-26 Jungheinrich Ag Hubmast für Stapler
DE202007009153U1 (de) * 2007-06-29 2007-09-13 Focks, Hubert Hydraulik-Zylinder-Anordnung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102745623A (zh) * 2012-06-29 2012-10-24 安徽德摩新能源叉车股份有限公司 液压搬运车
CN108454674A (zh) * 2018-05-18 2018-08-28 陈芳 一种高压真空断路器的转运小车

Also Published As

Publication number Publication date
CN101417777B (zh) 2014-10-01
CN101417777A (zh) 2009-04-29
DE102007042878A1 (de) 2009-03-12
EP2033932B1 (fr) 2015-07-08

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