EP1203744B1 - Dispositif de manutention de charge pour un chariot élévateur - Google Patents

Dispositif de manutention de charge pour un chariot élévateur Download PDF

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Publication number
EP1203744B1
EP1203744B1 EP01125214A EP01125214A EP1203744B1 EP 1203744 B1 EP1203744 B1 EP 1203744B1 EP 01125214 A EP01125214 A EP 01125214A EP 01125214 A EP01125214 A EP 01125214A EP 1203744 B1 EP1203744 B1 EP 1203744B1
Authority
EP
European Patent Office
Prior art keywords
load
switching element
load handling
handling device
movement
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
EP01125214A
Other languages
German (de)
English (en)
Other versions
EP1203744A1 (fr
Inventor
Volker Dipl.-Ing. Barth
Siegfried Lauxmann
Rolf Dipl.-Ing. Bez
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
Application filed by Still Wagner GmbH and Co KG filed Critical Still Wagner GmbH and Co KG
Publication of EP1203744A1 publication Critical patent/EP1203744A1/fr
Application granted granted Critical
Publication of EP1203744B1 publication Critical patent/EP1203744B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66FHOISTING, 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
    • B66F9/00Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06Devices 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
    • B66F9/075Constructional features or details
    • B66F9/12Platforms; Forks; Other load supporting or gripping members
    • B66F9/14Platforms; Forks; Other load supporting or gripping members laterally movable, e.g. swingable, for slewing or transverse movements
    • B66F9/147Whole unit including fork support moves relative to mast
    • B66F9/149Whole unit including fork support rotates
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66FHOISTING, 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
    • B66F9/00Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06Devices 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
    • B66F9/075Constructional features or details
    • B66F9/0755Position control; Position detectors

Definitions

  • the invention relates to a load handling device for a truck with an example designed as a load lifting device after the The preamble of one of the claims 1 or 2.
  • An industrial truck with such Load handling device is disclosed for example in DE 298 12 976 U1.
  • Moving devices of this kind can, for example, by Soschiebem or Pivoting devices are formed on a mast of the truck are mounted liftably and with which a load-carrying means in the lateral direction of the Truck can be moved or pivoted about a vertical axis.
  • a Combination of a sideshifter, a swivel device and a fork-shaped load-carrying means is called a swivel push fork.
  • a Swivel push fork which is used in particular for high-bay stackers can Serving located on the side of the truck shelves.
  • the present invention is based on the object, a simple structure Measuring device for detecting the end positions of the at least one To provide motion device according to the applicable Machine guidelines is to be classified as "safe”.
  • the continuously operating transmitter can be used as infinitely variable or fine-tuned Sensor be executed.
  • the positions of the Movement device detected continuously can, for example, in one Control device for this movement device to be further processed.
  • the safety relevant end positions of the movement device are in addition monitored via switching elements, allowing two independent signals available.
  • the end position of the Swivel device By means of the transmitter and the switching element, the end position of the Swivel device to be monitored redundantly.
  • the switching element of Pivoting device is attached to a non-pivoting member such that it is actuated by a pivotable component, when the pivoting device in one of its two end positions is located. In this arrangement can with a single switching element two end positions are monitored. In addition, it is as a result of the arrangement of the switching element on a non-pivoting component a simple routing allows.
  • the pusher is associated with a single switching element, which in such a way slidable portion of the load handling device is arranged to be at Achieving each end positions of the thruster has a first switching position and in the case of a thrust device positioned between the end positions, a second one Has switching position. Again, the two end positions of Pushers are monitored with a single switching element.
  • the additionally provided switching element is used for redundant monitoring of End positions of the pusher.
  • a pusher with a pivoting device to a so-called Swivel Fork is combined, the output signals of the position of the Lifting device by means of continuous measuring transducer in a common Control device to be processed.
  • the movements of the pusher and the Synchronize swivel device be controlled so that the load-receiving means during a Pivoting movement within the contours of the truck remains.
  • the transmitter and the switching element with a be operatively connected to electronic control, which is designed such that the Output signals of the transmitter and the switching element continuously compared become.
  • the control device may be a malfunction of the transmitter or the Recognize switching element because the transmitter and the switching element itself conflicting signals provide and then passes corresponding Security measures.
  • At least one transmitter of a potentiometer formed.
  • the potentiometer delivers at any time from the position the movement device dependent signal.
  • the approach of reference points is not required after start of operation.
  • At least one transmitter of a Incremental encoder is formed.
  • the position of the incremental encoder must be after Start of operation by a single start of a reference point, e.g. one End position of the movement device to be determined. This can be avoided when the position of the incremental encoder is continuously in one power supply independent memory, for example, a so-called “flash-memory" device is stored.
  • FIG. 1 shows a side view of a load handling device according to the invention.
  • the load handling device is with a fastener 1 directly or indirectly attached to a lifting frame of the truck liftable.
  • a fastener 1 directly or indirectly attached to a lifting frame of the truck liftable.
  • at Hochregalstaplind is the load handling device by means of Fastener 1 usually attached to a liftable driver's stand.
  • a support member 2 With rigidly connected to the fastener is a support member 2 with in Transverse direction of the truck, in the present representation perpendicular to Drawing plane, extending guide rails 3, 4, 5.
  • the thrust carriage 6 On the guide rails 3, 4, 5 is a sliding carriage 6 in the transverse direction of the Industrial truck guided displaceable.
  • the thrust carriage 6 has this Guide rollers 7, 8, 9, 10, 11, which roll on the guide rails 3, 4 and 5 respectively and guide the carriage in horizontal and vertical direction.
  • the drive for the pushing movement of the sliding carriage 6 is medium by means of a on the slide carriage 6 arranged electric motor 13, the rotor with a gear teeth 14th provided shaft 12 is connected.
  • the teeth 14 engage in racks 15th a, which are fixed to the support member 2.
  • the sliding in the transverse direction of the truck slide carriage 6 forms the first moving device of the load handling device.
  • This transmitter 16 for the Shear 6 is disposed at the lower end of the shaft 12 and detected continuously the rotational position of the shaft 12, from which the position of the Moving carriage 6 depends directly.
  • one of an inductive Proximity sensor formed switching element 17 is provided by the components 18 is operable.
  • two components 18 are such arranged that exactly then a component 18 is located in front of the switching element 17, when the slide carriage 6 is in one of the two end positions.
  • the end positions of the sliding carriage 6 provide the switching element 17 and the Transmitter 16 thus redundant signals in an electrical control of Truck can be checked and further processed.
  • Another movement device of the load handling device is of a Swivel device formed with the additional hoist 19 of the truck relative can be pivoted to the slide carriage 6 about a vertical axis 20. Of the Drive of the pivoting device is not shown in the present figure.
  • the Rajhubwerk 19 may be a designed as a load lifting device 21 relative be raised to the slide carriage 6.
  • Potentiometer executed transmitter 22 For continuously detecting the position of the pivoting device is as Potentiometer executed transmitter 22 is provided, which has a Gear stage 23 is coupled to a pivotable part of Sakhubwerks 19.
  • the transmitter 22 thus provides at any time one of the rotational position of the Pivoting device dependent signal.
  • an inductive proximity switch Switching element 24 is provided, which like the transmitter 22 with an electrical Control device is connected.
  • the switching element 24 is connected by a with the Rajhubwerk rotatable member 25, 26 actuated, the in an end position located pivoting device directly under the switching element 24 protrudes. In the shown position, the load-receiving device 21 is aligned forward and is in a middle position, leaving the space below the switching element 24 is free.
  • the end position of the pivoting device can with the switching element 24th and the transmitter 22 are also detected redundantly.
  • FIG. 2 shows the thrust carriage 6, the additional lifting mechanism 19 and the load receiving means 21 in plan view.
  • the load-receiving means 21 is in an end position, wherein the forks of the load-receiving device 21 in the lateral direction of the truck are aligned. Also shown is that formed by a proximity switch Switching element 24 which is actuated by the components 25, 26.
  • the components 25, 26 are pivotable about the vertical axis 20 together with the load receiving means 21.
  • the pivoting device In the illustrated end position of the pivoting device is a part of the Component 25 directly under the switching element 24, whereby the proximity switch 24th is pressed.
  • the load receiving means 21, starting from the illustrated End position is pivoted counterclockwise, the component 25 moves from the switching element 24 away, so that this occupies a different switching position.
  • the switching element 24 through the Component 26 is pressed again.

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)

Claims (7)

  1. Dispositif de manutention de charge pour un chariot de manutention comprenant un moyen de réception de charge (21) réalisé par exemple sous la forme d'une fourche de charge, au moins un dispositif de déplacement étant prévu, destiné à déplacer le moyen de réception de charge (21) dans la direction horizontale par rapport à un mât de levage du chariot de manutention, un dispositif de mesure destiné à détecter la position du dispositif de déplacement étant prévu, le dispositif de mesure présentant au moins un capteur de valeur de mesure (16, 22) détectant en continu la position du dispositif de déplacement et le dispositif de mesure présentant au moins un élément de commutation (17, 24) qui, lorsqu'au moins une position extrême du dispositif de déplacement est atteinte, modifie sa position de commutation, et un dispositif de déplacement étant réalisé sous forme de dispositif de pivotement, avec lequel le moyen de réception de charge (21) peut pivoter autour d'un axe essentiellement vertical, caractérisé en ce que l'on associe au dispositif de pivotement un élément de commutation unique (24) qui est disposé de telle sorte sur une partie non pivotante du dispositif de manutention de charge, qu'il présente une première position de commutation lorsque chaque position d'extrémité du dispositif de pivotement est atteinte et qu'il présente une deuxième position de commutation lorsque le dispositif de pivotement est positionné entre les positions d'extrémité.
  2. Dispositif de manutention de charge pour un chariot de manutention comprenant un moyen de réception de charge (21) réalisé par exemple sous la forme d'une fourche de charge, au moins un dispositif de déplacement étant prévu, destiné à déplacer le moyen de réception de charge (21) dans la direction horizontale par rapport à un mât de levage du chariot de manutention, un dispositif de mesure destiné à détecter la position du dispositif de déplacement étant prévu, le dispositif de mesure présentant au moins un capteur de valeur de mesure (16, 22) détectant en continu la position du dispositif de déplacement et le dispositif de mesure présentant au moins un élément de commutation (17, 24) qui, lorsqu'au moins une position extrême du dispositif de déplacement est atteinte, modifie sa position de commutation, et un dispositif de déplacement étant réalisé sous forme de dispositif de poussée, avec lequel le moyen de réception de charge (21) peut être déplacé de préférence dans la direction latérale du chariot de manutention, caractérisé en ce que l'on associe au dispositif de poussée un élément de commutation unique (17), qui est disposé de telle sorte sur une partie déplaçable du dispositif de manutention de charge, qu'il présente une première position de commutation lorsque chaque position d'extrémité du dispositif de poussée est atteinte, et qu'il présente une deuxième position de commutation lorsque le dispositif de poussée est positionné entre les positions d'extrémité.
  3. Dispositif de manutention de charge caractérisé par la combinaison des caractéristiques des revendications 1 et 2.
  4. Dispositif de manutention de charge selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le capteur de valeur de mesure (16, 22) et l'élément de commutation (17, 24) sont en liaison coopérante avec une commande électronique qui est réalisée de telle sorte que les signaux de sortie du capteur de valeur de mesure (16, 22) et de l'élément de commutation (17, 24) soient comparés en continu.
  5. Dispositif de manutention de charge selon l'une quelconque des revendications 1 à 4, caractérisé en ce qu'au moins un capteur de valeur de mesure (16, 22) est formé par un potentiomètre.
  6. Dispositif de manutention de charge selon l'une quelconque des revendications 1 à 5, caractérisé en ce qu'au moins un capteur de valeur de mesure (16, 22) est formé par un capteur incrémental.
  7. Dispositif de manutention de charge selon l'une quelconque des revendications 1 à 6, caractérisé en ce qu'au moins un élément de commutation (17, 24) est réalisé sous forme de commutateur de proximité, de préférence sous forme de commutateur de proximité inductif.
EP01125214A 2000-11-04 2001-10-24 Dispositif de manutention de charge pour un chariot élévateur Expired - Lifetime EP1203744B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10054791A DE10054791A1 (de) 2000-11-04 2000-11-04 Lasthandhabungsvorrichtung für ein Flurförderzeug
DE10054791 2000-11-04

Publications (2)

Publication Number Publication Date
EP1203744A1 EP1203744A1 (fr) 2002-05-08
EP1203744B1 true EP1203744B1 (fr) 2005-12-21

Family

ID=7662194

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01125214A Expired - Lifetime EP1203744B1 (fr) 2000-11-04 2001-10-24 Dispositif de manutention de charge pour un chariot élévateur

Country Status (3)

Country Link
EP (1) EP1203744B1 (fr)
AT (1) ATE313511T1 (fr)
DE (2) DE10054791A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20208469U1 (de) 2002-05-27 2002-08-14 LONGUS Paul Lange & Co., 70191 Stuttgart Absolutes Positions- und/oder Wegmesssystem und Vorrichtung mit einem bewegbaren Teil
DE10349123A1 (de) * 2003-10-22 2005-05-19 Still Wagner Gmbh & Co Kg Hubwerk, insbesondere für einen Hochregalstapler
DE102004041391A1 (de) * 2004-08-26 2006-03-02 Jungheinrich Aktiengesellschaft Messeinrichtung zum inkrementalen Messen von Positionen, Stellwegen oder Stellwinkeln und mit einer derartigen Messeinrichtung ausgestattetes Flurförderzeug
EP1748025B1 (fr) * 2005-07-29 2010-03-31 Jungheinrich Aktiengesellschaft Chariot élévateur à fourche à coulissement et à pivotement
WO2016043998A1 (fr) 2014-09-15 2016-03-24 Crown Equipment Corporation Chariot élévateur comprenant une structure de détection de charge optique

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1592057A (en) * 1977-02-10 1981-07-01 Lansing Bagnall Ltd Industrial truck
US4595331A (en) * 1983-12-29 1986-06-17 Adolph Coors Company Automated railcar loader and method
DE69028093T2 (de) * 1989-12-04 1997-03-20 Fmc Corp Vorrichtung und verfahren zur steuerbaren positionierung der gabel eines förderfahrzeugs
DE4412442B4 (de) * 1994-04-12 2006-05-11 Dambach Lagersysteme Gmbh Verfahren zur Steuerung der Bewegungen einer Schwenk-Schub-Einheit eines Regalbediengerätes
DE29812976U1 (de) * 1997-07-23 1998-10-01 Steinbock Boss GmbH Fördertechnik, 85368 Moosburg Einrichtung zur potentiometrischen Messung der Relativstellung zweier relativ zueinander beweglicher Komponenten
DE19731687A1 (de) * 1997-07-23 1999-02-04 Steinbock Boss Gmbh Foerdertec Flurförderzeug

Also Published As

Publication number Publication date
DE50108446D1 (de) 2006-01-26
ATE313511T1 (de) 2006-01-15
DE10054791A1 (de) 2002-05-08
EP1203744A1 (fr) 2002-05-08

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