EP1359113B2 - Chariot élévateur avec dispositif de déplacement du mât de levage - Google Patents

Chariot élévateur avec dispositif de déplacement du mât de levage Download PDF

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Publication number
EP1359113B2
EP1359113B2 EP03007553.5A EP03007553A EP1359113B2 EP 1359113 B2 EP1359113 B2 EP 1359113B2 EP 03007553 A EP03007553 A EP 03007553A EP 1359113 B2 EP1359113 B2 EP 1359113B2
Authority
EP
European Patent Office
Prior art keywords
reach truck
movement
lifting frame
mast
load
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.)
Expired - Lifetime
Application number
EP03007553.5A
Other languages
German (de)
English (en)
Other versions
EP1359113A3 (fr
EP1359113B1 (fr
EP1359113A2 (fr
Inventor
Oliver Retzlaff
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 GmbH
Original Assignee
STILL GmbH
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Publication date
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Application filed by STILL GmbH filed Critical STILL GmbH
Publication of EP1359113A2 publication Critical patent/EP1359113A2/fr
Publication of EP1359113A3 publication Critical patent/EP1359113A3/fr
Publication of EP1359113B1 publication Critical patent/EP1359113B1/fr
Application granted granted Critical
Publication of EP1359113B2 publication Critical patent/EP1359113B2/fr
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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
    • B66F9/20—Means for actuating or controlling masts, platforms, or forks
    • B66F9/24—Electrical devices or systems
    • 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
    • B66F9/082—Masts; Guides; Chains inclinable
    • 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
    • B66F9/10—Masts; Guides; Chains movable in a horizontal direction relative to truck

Definitions

  • the invention relates to a designed as a reach truck truck according to the preamble of claim 1 with a frame, a mast, along the mast vertically movable load-carrying means and at least one moving device for moving the mast relative to the frame, wherein the moving device of a pusher for horizontal displacement of the mast is formed in the longitudinal direction of the reach truck.
  • the mast can be tilted by means of a tilting device relative to a frame of the truck.
  • Reach trucks also have a pusher with which the mast can be moved horizontally, in the longitudinal direction of the truck relative to the frame.
  • the load-receiving means by a moving device relative to a mast in the transverse direction is movable.
  • the speed and / or acceleration of the movement of the load-receiving means can be influenced as a function of at least one operating parameter of the industrial truck.
  • the invention is therefore based on the object to provide a reach truck of the type mentioned with improved cargo handling capacity.
  • the acceleration and / or the speed of the movement of the mast which can be generated by means of the movement device, can be influenced as a function of at least one operating parameter of the reach truck.
  • the speed of the movement of the mast which can be generated by means of the movement device, can be influenced as a function of the at least one operating parameter of the reach truck.
  • the operating parameter is detected with a suitable measuring instrument and preferably converted into an electrical signal.
  • An electronic control unit processes the operating parameters and generates an influencing variable that determines the speed and acceleration of the load handling device. Possible influencing variables are, for example, the maximum speed that can be generated by the movement device and the maximum acceleration of the mast.
  • acceleration in the present context also includes a braking acceleration occurring during braking of the mast.
  • the movement device is formed by a pusher for horizontal displacement of the mast.
  • the displacement of the mast relative to the frame of the reach truck is in this case the faster, the farther the load-carrying means lowered and the lower it is loaded.
  • the pusher may be affected depending on the operating parameters. As a result, in comparison with prior art reach trucks, a particularly large increase in the rate of goods turnover is achieved.
  • the operating parameter is detected at least approximately infinitely.
  • the continuous detection of the operating parameter makes it possible to vary the acceleration and the speed of the moving device also approximately infinitely and constantly adapt to the circumstances.
  • the parameter acquisition by means of an incremental encoder is also to be regarded as infinitely variable for the present application.
  • An operating parameter is formed by the current lifting height of the load receiving means.
  • a dual-channel height sensor is used, which provides a redundant signal. This ensures that the calculation of the speed and the acceleration of the mast does not take place on the basis of an incorrect lifting height signal.
  • the maximum acceleration and the maximum speed of the movement of the mast that can be generated by means of the movement device can be influenced as a function of the lifting height in such a way that a greater acceleration or a higher speed is possible with a lower lifting height than with a larger lifting height.
  • a second operating parameter is formed by the weight of a load received by the load receiving means.
  • the load weight can be determined, for example, indirectly via the pressure present in a hydraulic lifting cylinder. From the load weight depend on an acceleration of the lifting device acting on the mast forces directly.
  • the maximum acceleration and maximum speed of the movement of the mast that can be generated by means of the movement device is depending on the weight of the load can be influenced in such a way that with a low weight a stronger acceleration or a higher speed is possible, than with a high weight.
  • a further movement device is formed by a tilting device for the mast.
  • the mast In lowered and unloaded condition, the mast can thus be tilted more quickly than in the raised and loaded condition.
  • the invention can be used in a reach truck.
  • both the tilting device and the pusher may be affected in response to the aforementioned operating parameters.
  • a particularly large increase in the turnover of the goods is achieved.
  • the figure shows a reach truck according to the invention.
  • the reach truck has as essential components a frame 1 and a driver's roof 2, under which the driver's seat of the reach truck is located. Wheels 3 are fixed to the frame 1 in the area below the driver's seat and to the wheel arms 4. The wheel arms 4 are also part of the frame 1.
  • a telescopically extendable mast 5 can be inclined relative to the frame 1 about a horizontal axis 6. Shown is the mast 5 in its forwardly inclined end position 5a and in its rearwardly inclined end position 5b. The tilt angle 7 of the mast 5 is usually about 6 degrees.
  • the tiltable about the axis 6 mounting of the mast 5 is carried out on a slide carriage 8.
  • the thrust slide 8 is slidably guided on the Radarmen 4 in the horizontal direction. Shown is the slide carriage 8 in its front end position and can be pushed along the push path 9 in the direction of the driver's seat.
  • the drive of the pusher for moving the sliding carriage 8 and thus the mast 5 along the push path 9 by means of a hydraulic cylinder.
  • the hydraulic cylinders are connected via hydraulic valves with a hydraulic pump.
  • the accelerations and speeds of the tilting movement and the pushing movement can be adjusted by appropriate activation of the hydraulic valves. It is also possible to control the accelerations and speeds of said movements via the rotational speed of an electric motor driving the hydraulic pump, which is thereby supplied with power accordingly.
  • the lifting height and the weight of a load located on the load receiving means 10 are detected continuously by means of suitable transducers.
  • This information is processed in an electronic control device of the reach truck, wherein limits for the speeds and accelerations of the thrust movement of the sliding carriage 8 and the tilting movement of the mast 5 are determined. These limits are such that excessive swinging of the mast 5 is prevented.
  • the accelerations and speeds are not limited beyond what is necessary, so that the reach truck achieves optimal goods handling performance.
  • the relationships between the determined measured variables and the permissible accelerations and speeds are stored as software, for example in the form of algorithms or characteristic diagrams.
  • the control device is connected to the operator-operated operating levers for the tilting device and the pushing device.
  • the hydraulic valves or the electric motor driving the hydraulic pump are controlled directly or indirectly by the electronic control device in accordance with the control lever positions, whereby the accelerations and speeds are limited to the determined maximum values.

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Claims (8)

  1. Chariot élévateur à mât déplaçable comprenant un châssis (1), une structure de levage (5), un moyen de réception de la charge (10) déplaçable verticalement le long de la structure de levage (5) et au moins un dispositif de déplacement pour déplacer la structure de levage (5) par rapport au châssis (1), le dispositif de déplacement étant formé par un dispositif de poussée pour déplacer horizontalement la structure de levage (5) dans la direction longitudinale du chariot élévateur à mât déplaçable, caractérisé en ce que l'accélération du déplacement de la structure de levage (5) pouvant être produit au moyen du dispositif de déplacement peut être influencée en fonction d'au moins un paramètre de fonctionnement du chariot élévateur à mât déplaçable.
  2. Chariot élévateur à mât déplaçable selon la revendication 1, caractérisé en ce que la vitesse du déplacement de la structure de levage (5) pouvant être produit au moyen du dispositif de déplacement peut aussi être influencée en fonction de l'au moins un paramètre de fonctionnement du chariot élévateur à mât déplaçable.
  3. Chariot élévateur à mât déplaçable selon la revendication 1 ou 2, caractérisé en ce que le paramètre de fonctionnement est détecté au moins approximativement en continu.
  4. Chariot élévateur à mât déplaçable selon l'une quelconque des revendications 1 à 3, caractérisé en ce qu'un paramètre de fonctionnement est constitué par la hauteur de levage actuelle du moyen de réception de la charge (10).
  5. Chariot élévateur à mât déplaçable selon la revendication 4, caractérisé en ce que l'accélération maximale et la vitesse maximale du déplacement de la structure de levage (5) pouvant être produit au moyen du dispositif de déplacement peuvent être influencées en fonction de la hauteur de levage de telle sorte que pour des hauteurs de levage réduites, on puisse avoir une plus grande accélération ou une plus grande vitesse que pour des hauteurs de levage plus importantes.
  6. Chariot élévateur à mât déplaçable selon l'une quelconque des revendications 1 à 5, caractérisé en ce qu'un paramètre de fonctionnement est constitué par le poids d'une charge reçue avec le moyen de réception de la charge (10).
  7. Chariot élévateur à mât déplaçable selon la revendication 6, caractérisé en ce que l'accélération maximale et la vitesse maximale du déplacement de la structure de levage (5) pouvant être produit au moyen du dispositif de déplacement peuvent être influencées en fonction du poids de la charge, de telle sorte que pour un poids réduit, on puisse avoir une plus grande accélération ou une plus grande vitesse que pour un poids élevé.
  8. Chariot élévateur à mât déplaçable selon l'une quelconque des revendications 1 à 7, caractérisé en ce qu'un autre dispositif de déplacement est formé par un dispositif d'inclinaison pour la structure de levage (5).
EP03007553.5A 2002-05-02 2003-04-01 Chariot élévateur avec dispositif de déplacement du mât de levage Expired - Lifetime EP1359113B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10219739A DE10219739A1 (de) 2002-05-02 2002-05-02 Flurförderzeug mit einer Vorrichtung zum Bewegen eines Hubgerüsts
DE10219739 2002-05-02

Publications (4)

Publication Number Publication Date
EP1359113A2 EP1359113A2 (fr) 2003-11-05
EP1359113A3 EP1359113A3 (fr) 2006-05-17
EP1359113B1 EP1359113B1 (fr) 2010-10-06
EP1359113B2 true EP1359113B2 (fr) 2018-04-04

Family

ID=28798981

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03007553.5A Expired - Lifetime EP1359113B2 (fr) 2002-05-02 2003-04-01 Chariot élévateur avec dispositif de déplacement du mât de levage

Country Status (4)

Country Link
US (1) US6945745B2 (fr)
EP (1) EP1359113B2 (fr)
AT (1) ATE483665T1 (fr)
DE (2) DE10219739A1 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6829835B2 (en) * 2002-11-21 2004-12-14 Martin Pfeil Trawid-Gmbh Lifting vehicle
US20040154871A1 (en) * 2003-02-12 2004-08-12 Uwe Allerding Method for operating a fork-lift truck
JP4793134B2 (ja) * 2005-09-30 2011-10-12 株式会社豊田自動織機 フォークリフトの走行制御装置
EP1975115A1 (fr) * 2006-01-16 2008-10-01 Mitsubishi Heavy Industries, Ltd. Chariot elevateur a fourche et procede de controle pour empecher le renversement dudit chariot
DE102007024817B4 (de) 2007-03-30 2021-10-07 Linde Material Handling Gmbh Flurförderzeug mit einem Hubgerüst und einem Stellglied zur Kompensation von Schwingungen
US20080257651A1 (en) * 2007-04-23 2008-10-23 Williamson Joel L Lift truck with productivity enhancing package including variable tilt and vertical masting
EP2447203B1 (fr) * 2010-11-01 2013-04-17 BT Products AB Camion industriel, procédé et programme information pour le commander
EP2857344B1 (fr) * 2013-10-07 2016-04-06 Hyster-Yale Group, Inc. Chariot élévateur à mât déplaçable
DE102014115152B4 (de) * 2014-10-17 2023-09-28 Jungheinrich Aktiengesellschaft Schubmaststapler
DE102016124505A1 (de) * 2016-12-15 2018-06-21 Jungheinrich Aktiengesellschaft Flurförderzeug mit einer Steuereinheit zur Regelung der Bewegung einer Kolbenstange eines Hydraulikzylinders sowie ein solches Verfahren
DE102017103043A1 (de) 2017-02-15 2018-08-16 Jungheinrich Aktiengesellschaft Flurförderzeug mit einem Hubgerüst
US11352243B2 (en) 2018-09-13 2022-06-07 Crown Equipment Corporation System and method for controlling a maximum vehicle speed for an industrial vehicle based on a calculated load
DE102019206658A1 (de) * 2019-05-09 2020-11-12 Zf Friedrichshafen Ag Verfahren und Vorrichtung zur Getriebesteuerung einer Arbeitsmaschine
EP4324782A1 (fr) * 2022-08-16 2024-02-21 Palfinger AG Chariot élévateur à fourche

Citations (1)

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Publication number Priority date Publication date Assignee Title
JPH04121996A (ja) † 1990-09-12 1992-04-22 Aichi Electric Co Ltd 照明装置及び該装置に用いるインバータ

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CA1113891A (fr) * 1979-06-21 1981-12-08 Gerardus J. Brouwer Chariot elevateur a fourche
US4580650A (en) * 1983-07-28 1986-04-08 Nissan Motor Co., Ltd. Industrial truck
US4538954A (en) * 1983-12-01 1985-09-03 Harnischfeger Corporation Stacker crane having narrow mast structure
US5244336A (en) * 1991-09-11 1993-09-14 Riggers Manufacturing Co, Inc. Mobile lifting apparatus with fork attachment
US5217342A (en) * 1991-10-31 1993-06-08 Martin Grether Self-loading and unloading forklift truck
US5697755A (en) * 1995-03-03 1997-12-16 Mccauley; Charles A. Forklift level indicator
US6027303A (en) * 1997-07-18 2000-02-22 Voegeli; Ronald C. Non-counterweighted lift truck and method of operation
KR100523158B1 (ko) * 1997-09-30 2005-10-24 크라운 이큅먼트 코포레이션 생산성 패키지
JP3301416B2 (ja) * 1999-08-23 2002-07-15 株式会社豊田自動織機 産業車両におけるマスト傾動速度制御装置
DE10054789A1 (de) * 2000-11-04 2002-05-08 Still Wagner Gmbh & Co Kg Flurförderzeug mit einem Hubgerüst und einer zusätzlichen Bewegungsvorrichtung für ein Lastaufnahmemittel

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04121996A (ja) † 1990-09-12 1992-04-22 Aichi Electric Co Ltd 照明装置及び該装置に用いるインバータ

Also Published As

Publication number Publication date
US6945745B2 (en) 2005-09-20
DE50313146D1 (de) 2010-11-18
EP1359113A3 (fr) 2006-05-17
ATE483665T1 (de) 2010-10-15
EP1359113B1 (fr) 2010-10-06
DE10219739A1 (de) 2003-11-13
US20030206793A1 (en) 2003-11-06
EP1359113A2 (fr) 2003-11-05

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