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EP1710203B1 - Floor conveyor comprising a device for picking up loads - Google Patents

Floor conveyor comprising a device for picking up loads Download PDF

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Publication number
EP1710203B1
EP1710203B1 EP06007148.7A EP06007148A EP1710203B1 EP 1710203 B1 EP1710203 B1 EP 1710203B1 EP 06007148 A EP06007148 A EP 06007148A EP 1710203 B1 EP1710203 B1 EP 1710203B1
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EP
European Patent Office
Prior art keywords
wireless communication
industrial truck
carrier
carrying
out wireless
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.)
Not-in-force
Application number
EP06007148.7A
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German (de)
French (fr)
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EP1710203A1 (en
Inventor
Maik Manthey
Joachim Dr. Tödter
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STILL GmbH
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STILL GmbH
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Publication of EP1710203A1 publication Critical patent/EP1710203A1/en
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Publication of EP1710203B1 publication Critical patent/EP1710203B1/en
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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
    • B66F9/0755—Position control; Position detectors

Definitions

  • the invention relates to an industrial truck according to the preamble of patent claim 1.
  • Forklifts usually have a vertically movable fork carrier and arranged on the vertically movable fork carrier load handling means to raise or lower loads and carry for transport.
  • a typical example of this is a counterbalance forklift where the load handler essentially consists of a forklift attached to a fork carriage.
  • the fork is essentially formed by two or more forks.
  • the fork carriage is mounted vertically movable on a mast.
  • other attachments such as drum clamps can be mounted.
  • fork carriers and forks can also form a structural unit.
  • RFID transponders which are sometimes referred to as a tag or smart label.
  • information about the goods or the carrier such as identification, production data, product data, customer information or destination are included.
  • readers In order to read out and / or modify this information, it is known to attach appropriate readers to industrial trucks.
  • These reading devices usually consist of an antenna unit which emits and receives corresponding radio signals and an evaluation unit.
  • Such antenna units are available in various designs, with smaller antennas have smaller ranges and therefore must be brought closer to the transponder to be read.
  • the invention is therefore an object of the invention to provide a truck with at least one vertically movable load-carrying means and at least one mounted in the region of a fork carriage device for wireless communication with an RFID transponder, in which a good communication between the RFID transponder and the device for wireless communication is enabled and the wireless communication device is protected from damage.
  • the object is achieved in an industrial truck with at least one vertically movable fork carrier and at least one arranged in the region of the fork carriage device for wireless communication with an RFID transponder according to the invention that at least one device for wireless communication on the fork carriage behind the side facing away from the load of the center line of at least two cross members of the vertically movable fork carrier defined plane is arranged.
  • the communication device is particularly well protected against damage, since on the one hand, the distance to the load and thus to possible dangers is increased and on the other hand, the cross member act quasi as a guard.
  • the device for wireless communication is arranged below the lowermost cross member of the fork carriage.
  • transponders arranged in particular on pallets can be detected particularly well. Also, the detection of transponders mounted in the ground, which are attached there for marking purposes, for example, is easily possible.
  • the device for wireless communication above the lowermost cross member of the fork carriage and below the uppermost cross member of the fork carriage is arranged.
  • the Communication device particularly well protected from damage, since both cross member and optionally attached to it forks provide protection against damage on all sides without overshadowing the communication device excessively
  • the device for wireless communication is arranged above the uppermost cross member of the fork carriage.
  • the communication device is very well protected against damage and also allows the trouble-free reception of signals from transponders located in higher areas, such as a second row of shelves of a warehouse.
  • the device for wireless communication between two spaced in the vehicle transverse direction of a column mast of the truck is arranged.
  • the device for wireless communication from damage is particularly well protected, since the columns of the lifting mast provide protection against lateral effects.
  • the device is also mounted approximately in the middle of the vehicle and thus allows equally good reception conditions on both sides, which may be advantageous especially in the case of eccentrically arranged transponders.
  • the device for wireless communication is arranged laterally outside two spaced apart in the vehicle transverse direction of a column mast of the truck. Especially with transponders arranged in different side areas of a pallet, such an arrangement can offer better reception operations.
  • the device for wireless communication with an RFID transponder for receiving and / or transmitting signals in a wavelength range of 868 MHz to 920 MHz and / or in a wavelength range of 125 to 135 kHz and / or with a wavelength of approximately 13.56 MHz and / or with a wavelength of approximately 2.45 GHz.
  • These wavelength ranges are commonly used by RFID transponders for the transmission of signals. By selecting one corresponding wavelength range, the range and susceptibility of the transmission can be influenced. When using multiple wavelength ranges, a universal applicability of the truck is also given for different types of transponders,
  • the communication device is designed such that a communication with active and / or passive transponders is made possible. Different transmission methods are used for different purposes. When using both active and passive transmission technology, a universal applicability of the truck is also given for different types of transponders.
  • FIG. 1 Fork carriage and fork of a truck according to the invention according to claim 1.
  • FIG. 1 shows a fork carriage 10 and a two prongs 11 existing fork of an industrial truck according to the invention according to claim 1, wherein in FIGS. 1a to 1c three different embodiments are shown.
  • the fork carriage 10 essentially consists of a lower cross member 12 and an upper cross member 13, which are connected by roll holder 14.
  • rollers 15 are mounted with which the fork carriage 10 is mounted vertically movable on two not shown here laterally spaced columns of a mast of a truck.
  • various attachments can be attached. In the illustrated embodiment, these are two forks 11, but also drum clamps, mandrels or other attachments according to the prior art are conceivable.
  • FIG. 1a is a device 16 for communication with an RFID transponder below the bottom cross member 12 of the fork carriage 10 between the roller holders 14 and thus arranged between the two laterally spaced columns of the lifting mast.
  • the communication device 16 consists of a housing 17 arranged in the antenna 16.
  • this attachment In the lowered position of the fork carrier 10, this attachment also allows the reading of RFID transponders, which are mounted in the road, for example, to transmit a position indication. Also, the field of view of the operator with lowered fork carriage 10, so for example when driving and maneuvering, practically not affected by the deep attachment.
  • the antenna 16 is mounted above the lowermost cross member 12 of the fork carriage 10 and below the uppermost cross member 13 between the roll holders 14. Again, the front edge 17a of the housing 17 is disposed behind the side facing away from the load of the plane defined by the center lines 18 of the upper cross member 13 and the lower cross member 12.
  • the antenna 16 is particularly well protected at this point, since to the side of the roll holder 14 and the columns of the lifting mast not shown here and to the load up and up the upper cross member 13 and the load and down the lower cross member 12 protection Damage offer. Again, the field of view of the operator is lowered only slightly with lowered fork carriage 10.
  • the antenna 16 is mounted above the uppermost cross member 13 of the fork carriage 10. Again, the front edge 17a of the housing 17 is disposed behind the side facing away from the load of the plane defined by the center lines 18 of the upper cross member 13 and the lower cross member 12. The antenna 16 is protected at this point especially to the side by the mast, not shown here and as well as the load down through the upper cross member 13. Particularly advantageous in this arrangement is the low shading of the antenna 16 and when working in medium and large lifting heights the small limitation of the field of view of the operator.
  • the fastening of the housing 17 takes place, for example, via screw connections on one of the cross members 12, 13 of the fork carriage 10 or with other suitable means according to the prior art.
  • other attachment locations according to the invention are also conceivable, for example laterally of the mast.
  • the communication devices 16 used for receiving and / or transmitting signals in a wavelength range of 868 MHz to 920 MHz and / or in a wavelength range of 125 to 135 kHz and / or with a wavelength of approximately 13.56 MHz and or approximately 2.45 GHz and preferably suitable for communication with active and passive transponders.
  • other devices for processing and evaluating the received and / or signals to be transmitted in the housing 7, 17 may be arranged.
  • connection between the communication device 16 and an evaluation unit, not shown, takes place in all embodiments via a cable connection, not shown, but other connections according to the prior art are conceivable, for example via radio or infrared.

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  • 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)

Description

Die Erfindung betrifft ein Flurförderzeug nach dem Oberbegriff des Patentanspruchs 1.The invention relates to an industrial truck according to the preamble of patent claim 1.

Flurförderzeuge verfügen zumeist über einen vertikal bewegbaren Gabelträger und ein an dem vertikal bewegbaren Gabelträger angeordnetes Lastaufnahmemittel um Lasten anzuheben bzw. abzusenken und zum Transport mitzuführen. Ein typisches Beispiel hierfür ist ein Gegengewichtsgabelstapler, bei dem das Lastaufnahmemittel im Wesentlichen aus einer Lastgabel besteht, die an einem Gabelträger angebracht ist. Die Lastgabel wird im Wesentlichen durch zwei oder mehr Gabelzinken gebildet. Der Gabelträger ist an einem Hubmast vertikal beweglich gelagert. Anstelle der Lastgabel können auch andere Anbaugeräte, wie beispielsweise Fassklammern, montiert werden. Bei Niederhubwagen können Gabelträger und Gabelzinken auch eine Baueinheit bilden.Forklifts usually have a vertically movable fork carrier and arranged on the vertically movable fork carrier load handling means to raise or lower loads and carry for transport. A typical example of this is a counterbalance forklift where the load handler essentially consists of a forklift attached to a fork carriage. The fork is essentially formed by two or more forks. The fork carriage is mounted vertically movable on a mast. Instead of the fork, other attachments such as drum clamps can be mounted. For pallet trucks, fork carriers and forks can also form a structural unit.

Waren oder Ladungsträger, wie beispielsweise Paletten oder Gitterboxen, sind häufig mit so genannten RFID-Transpondern, die bisweilen auch als Tag oder Smart-label bezeichnet werden, versehen. Auf dem RFID-Transponder sind Informationen über die Ware bzw. den Ladungsträger, wie beispielsweise Identifikation, Produktionsdaten, Produktdaten, Kundeninformationen oder Bestimmungsziel, enthalten. Um diese Informationen auszulesen und/oder zu verändern, ist es bekannt, an Flurförderzeugen entsprechende Lesegeräte anzubringen. Diese Lesegräte bestehen zumeist aus einer Antenneneinheit, die entsprechende Funksignale abgibt und empfängt, sowie einer Auswerteeinheit. Derartige Antenneneinheiten gibt es in verschiedenen Ausführungen, wobei kleinere Antennen auch kleinere Reichweiten besitzen und daher näher an den auszulesenden Transponder herangebracht werden müssen. Aus der US 2003/0089771 A1 ist bekannt, derartige Antennen am lastseitigen Teil des Gabelträgers bündig mit diesem oder sogar in Richtung der Last hervorstehend anzuordnen. Diese Antennen sind aufgrund der großen Entfernung von den auszulesenden Transpondern relativ groß, so dass sie sehr leicht beschädigt werden können. Bei einer Anbringung in der Gabel, wie in der NL 9401836 gezeigt, sind die Antennen gut geschützt und sehr nahe am auszulesenden Transponder, weshalb sie sehr klein ausgeführt werden können. Allerdings sind kleine Antennen besonders empfindlich gegenüber Abschattungen und elektromagnetische Störungen durch metallische Bauteile, so dass bei einer Anbringung in der Gabel ein sehr schlechter Empfang gegeben ist. Bei einer Anbringung auf der Gabel hingegen ist die Gefahr von Beschädigungen sehr groß.Goods or load carriers, such as pallets or lattice boxes, are often provided with so-called RFID transponders, which are sometimes referred to as a tag or smart label. On the RFID transponder information about the goods or the carrier, such as identification, production data, product data, customer information or destination are included. In order to read out and / or modify this information, it is known to attach appropriate readers to industrial trucks. These reading devices usually consist of an antenna unit which emits and receives corresponding radio signals and an evaluation unit. Such antenna units are available in various designs, with smaller antennas have smaller ranges and therefore must be brought closer to the transponder to be read. From the US 2003/0089771 A1 It is known to arrange such antennas on the load-side part of the fork carriage flush with this or even in the direction of the load protruding. These antennas are relatively large due to the large distance from the transponders to be read so that they are very easily damaged can. When mounted in the fork, as in the NL 9401836 shown, the antennas are well protected and very close to the transponder to be read, so they can be made very small. However, small antennas are particularly sensitive to shadowing and electromagnetic interference from metallic components, so that when mounted in the fork a very poor reception is given. When mounted on the fork, however, the risk of damage is very large.

Der Erfindung liegt daher die Aufgabe zugrunde, ein Flurförderzeug mit mindestens einem vertikal bewegbaren Lastaufnahmemittel und mindestens einer im Bereich eines Gabelträgers angebrachten Vorrichtung zur drahtlosen Kommunikation mit einem RFID-Transponder zu schaffen, bei dem eine gute Kommunikation zwischen dem RFID-Transponder und der Vorrichtung zur drahtlosen Kommunikation ermöglicht wird und die Vorrichtung zur drahtlosen Kommunikation vor Beschädigungen geschützt ist.The invention is therefore an object of the invention to provide a truck with at least one vertically movable load-carrying means and at least one mounted in the region of a fork carriage device for wireless communication with an RFID transponder, in which a good communication between the RFID transponder and the device for wireless communication is enabled and the wireless communication device is protected from damage.

Die Aufgabe wird bei einem Flurförderzeug mit mindestens einem vertikal bewegbaren Gabelträger und mindestens einer im Bereich des Gabelträgers angeordneten Vorrichtung zur drahtlosen Kommunikation mit einem RFID-Transponder erfindungsgemäß dadurch gelöst, dass mindestens eine Vorrichtung zur drahtlosen Kommunikation am Gabelträger hinter der der Last abgewandten Seite der durch die Mittellinie von mindestens zwei Querträgern des vertikal bewegbaren Gabelträgers definierten Ebene angeordnet ist. Dadurch wird die Kommunikationsvorrichtung besonders gut vor Beschädigungen geschützt, da zum einen der Abstand zur Last und damit zu möglichen Gefahren vergrößert wird und andererseits die Querträger quasi als Schutzbügel wirken.The object is achieved in an industrial truck with at least one vertically movable fork carrier and at least one arranged in the region of the fork carriage device for wireless communication with an RFID transponder according to the invention that at least one device for wireless communication on the fork carriage behind the side facing away from the load of the center line of at least two cross members of the vertically movable fork carrier defined plane is arranged. As a result, the communication device is particularly well protected against damage, since on the one hand, the distance to the load and thus to possible dangers is increased and on the other hand, the cross member act quasi as a guard.

In einer vorteilhaften Ausgestaltung der Erfindung ist die Vorrichtung zur drahtlosen Kommunikation unterhalb des untersten Querträgers des Gabelträgers angeordnet. Dadurch können insbesondere an Paletten angeordnete Transponder besonders gut erfasst werden. Auch die Erfassung von im Boden angebrachten Transpondern, die beispielsweise zu Markierungszwecken dort angebracht sind, ist einfach möglich.In an advantageous embodiment of the invention, the device for wireless communication is arranged below the lowermost cross member of the fork carriage. As a result, transponders arranged in particular on pallets can be detected particularly well. Also, the detection of transponders mounted in the ground, which are attached there for marking purposes, for example, is easily possible.

In einer weiteren vorteilhaften Ausgestaltung der Erfindung ist die Vorrichtung zur drahtlosen Kommunikation oberhalb des untersten Querträgers des Gabelträgers und unterhalb des obersten Querträgers des Gabelträgers angeordnet. Hier ist die Kommunikationsvorrichtung besonders gut vor Beschädigungen geschützt, da beide Querträger sowie gegebenenfalls die daran angebrachten Gabelzinken allseitig Schutz vor Beschädigungen bieten ohne die Kommunikationsvorrichtung übermäßig abzuschattenIn a further advantageous embodiment of the invention, the device for wireless communication above the lowermost cross member of the fork carriage and below the uppermost cross member of the fork carriage is arranged. Here is the Communication device particularly well protected from damage, since both cross member and optionally attached to it forks provide protection against damage on all sides without overshadowing the communication device excessively

In einer weiteren Ausgestaltung der Erfindung ist die Vorrichtung zur drahtlosen Kommunikation oberhalb des obersten Querträgers des Gabelträgers angeordnet. Insbesondere bei niedrigen Ladegütern ist die Kommunikationsvorrichtung sehr gut vor Beschädigungen geschützt und ermöglicht zudem den störungsfreien Empfang von Signalen von Transpondern, die sich in höheren Bereichen, beispielsweise einer zweiten Regalreihe eines Lagers, befinden.In a further embodiment of the invention, the device for wireless communication is arranged above the uppermost cross member of the fork carriage. In particular, at low loads the communication device is very well protected against damage and also allows the trouble-free reception of signals from transponders located in higher areas, such as a second row of shelves of a warehouse.

In einer besonders vorteilhaften Ausführungsform der Erfindung ist die Vorrichtung zur drahtlosen Kommunikation zwischen zwei in Fahrzeugquerrichtung beabstandeten Säulen eines Hubmastes des Flurförderzeugs angeordnet. In diesem Bereich ist die Vorrichtung zur drahtlosen Kommunikation vor Beschädigungen besonders gut geschützt, da die Säulen des Hubmasts einen Schutz vor seitlichen Einwirkungen bieten. Die Vorrichtung ist zudem annähernd in Fahrzeugmitte angebracht und ermöglicht so nach beiden Seiten gleich gute Empfangsbedingungen, was besonders bei außermittig angeordneten Transpondern vorteilhaft sein kann.In a particularly advantageous embodiment of the invention, the device for wireless communication between two spaced in the vehicle transverse direction of a column mast of the truck is arranged. In this area, the device for wireless communication from damage is particularly well protected, since the columns of the lifting mast provide protection against lateral effects. The device is also mounted approximately in the middle of the vehicle and thus allows equally good reception conditions on both sides, which may be advantageous especially in the case of eccentrically arranged transponders.

In einer ebenfalls besonders vorteilhaften Ausführungsform der Erfindung ist die Vorrichtung zur drahtlosen Kommunikation seitlich außerhalb zweier in Fahrzeugquerrichtung beabstandeter Säulen eines Hubmastes des Flurförderzeugs angeordnet. Insbesondere bei in verschiedenen Seitenbereichen einer Palette angeordneten Transpondern kann eine derartige Anordnung bessere Empfangsbedienungen bieten.In a likewise particularly advantageous embodiment of the invention, the device for wireless communication is arranged laterally outside two spaced apart in the vehicle transverse direction of a column mast of the truck. Especially with transponders arranged in different side areas of a pallet, such an arrangement can offer better reception operations.

In einer vorteilhaften Weiterbildung der Erfindung ist die Vorrichtung zur drahtlosen Kommunikation mit einem RFID-Transponder zum Empfang und/oder zur Aussendung von Signalen in einem Wellenlängenbereich von 868 MHz bis 920 MHz und/oder in einem Wellenlängenbereich von 125 bis 135 kHz und/oder mit einer Wellenlänge von annähernd 13,56 MHz und/oder mit einer Wellenlänge von annähernd 2,45 GHz vorgesehen. Diese Wellenlängenbereiche werden üblicherweise von RFID-Transpondern zur Übermittlung von Signalen verwendet. Durch Auswahl eines entsprechenden Wellenlängenbereichs kann die Reichweite und die Störempfindlichkeit der Übertragung beeinflusst werden. Bei Verwendung mehrerer Wellenlängenbereiche ist eine universelle Anwendbarkeit des Flurförderzeugs auch bei unterschiedlichen Transpondertypen gegeben,In an advantageous embodiment of the invention, the device for wireless communication with an RFID transponder for receiving and / or transmitting signals in a wavelength range of 868 MHz to 920 MHz and / or in a wavelength range of 125 to 135 kHz and / or with a wavelength of approximately 13.56 MHz and / or with a wavelength of approximately 2.45 GHz. These wavelength ranges are commonly used by RFID transponders for the transmission of signals. By selecting one corresponding wavelength range, the range and susceptibility of the transmission can be influenced. When using multiple wavelength ranges, a universal applicability of the truck is also given for different types of transponders,

Vorteilhafterweise ist die Kommunikationsvorrichtung derart ausgebildet, dass eine Kommunikation mit aktiven und/oder passiven Transpondern ermöglicht wird. Unterschiedliche Übertragungsverfahren werden zu unterschiedlichen Zwecken eingesetzt. Bei Verwendung aktiver wie passiver Übertragungstechnik ist eine universelle Anwendbarkeit des Flurförderzeugs auch bei unterschiedlichen Transpondertypen gegeben.Advantageously, the communication device is designed such that a communication with active and / or passive transponders is made possible. Different transmission methods are used for different purposes. When using both active and passive transmission technology, a universal applicability of the truck is also given for different types of transponders.

Weitere Vorteile und Einzelheiten der Erfindung werden im Folgenden anhand des in der Zeichnung dargestellten Ausführungsbeispiels näher erläutert. Gleiche Teile sind mit gleichen Bezugszeichen gekennzeichnet. Dabei zeigt Figur 1 Gabelträger und Gabel eines erfindungsgemäßen Flurförderzeugs gemäß Anspruch 1.Further advantages and details of the invention are explained in more detail below with reference to the embodiment shown in the drawing. Identical parts are identified by the same reference numerals. It shows FIG. 1 Fork carriage and fork of a truck according to the invention according to claim 1.

Figur 1 zeigt einen Gabelträger 10 und eine aus zwei Zinken 11 bestehende Lastgabel eines erfindungsgemäßen Flurförderzeugs gemäß Anspruch 1, wobei in Figur 1a bis 1c drei verschiedene Ausführungsformen gezeigt sind. Der Gabelträger 10 besteht im Wesentlichen aus einem unteren Querträger 12 und einem oberen Querträger 13, die durch Rollenhalter 14 verbunden sind. An den Rollenhattern 14 sind Rollen 15 gelagert, mit denen der Gabelträger 10 an zwei hier nicht dargestellten seitlich beabstandeten Säulen eines Masts eines Flurförderzeugs vertikal beweglich gelagert ist. An dem Gabelträger 10 können verschiedene Anbaugeräte befestigt werden. Im gezeigten Ausführungsbeispiel sind dies zwei Gabelzinken 11, aber auch Fassklammern, Dorne oder andere Anbaugeräte nach dem Stand der Technik sind denkbar. FIG. 1 shows a fork carriage 10 and a two prongs 11 existing fork of an industrial truck according to the invention according to claim 1, wherein in FIGS. 1a to 1c three different embodiments are shown. The fork carriage 10 essentially consists of a lower cross member 12 and an upper cross member 13, which are connected by roll holder 14. On the Rollenhattern 14 rollers 15 are mounted with which the fork carriage 10 is mounted vertically movable on two not shown here laterally spaced columns of a mast of a truck. At the fork carriage 10 various attachments can be attached. In the illustrated embodiment, these are two forks 11, but also drum clamps, mandrels or other attachments according to the prior art are conceivable.

In Figur 1a ist eine Vorrichtung 16 zur Kommunkation mit einem RFID-Transponder unterhalb des untersten Querträgers 12 des Gabelträgers 10 zwischen den Rollenhaltern 14 und damit zwischen den zwei seitlich beabstandeten Säulen des Hubmasts angeordnet. Im Wesentlichen besteht die Kommunikationsvorrichtung 16 aus einer im Gehäuse 17 angeordneten Antenne 16. Dabei ist die Vorderkante 17a des Gehäuses 17 und damit auch die Antenne 16 hinter der der Last abgewandten Seite der durch die Mittellinien 18 des oberen Querträgers 13 und des unteren Querträgers 12 definierten Ebene angeordnet. Vor seitlichen Beschädigungen ist die Antenne 16 durch die Rollenhalter 14 und die hier nicht dargestellten Säulen des Hubmasts geschützt, während nach oben sowie zur Last hin der Querträger 12 als Schutzbügel wirkt. In abgesenkter Stellung des Gabelträgers 10 ermöglicht diese Anbringung auch das Auslesen von RFID-Transpondern, die in der Fahrbahn angebracht sind, beispielsweise, um eine Positionsangabe zu übermitteln. Auch wird durch die tiefe Anbringung das Sichtfeld der Bedienperson bei abgesenktem Gabelträger 10, also beispielsweise beim Fahren und Rangieren, praktisch nicht beeinträchtigt.In FIG. 1a is a device 16 for communication with an RFID transponder below the bottom cross member 12 of the fork carriage 10 between the roller holders 14 and thus arranged between the two laterally spaced columns of the lifting mast. Essentially, the communication device 16 consists of a housing 17 arranged in the antenna 16. In this case, the front edge 17a of the housing 17 and thus also the antenna 16 behind the side facing away from the load arranged by the center lines 18 of the upper cross member 13 and the lower cross member 12 defined plane. From side damage to the antenna 16 is protected by the roller holder 14 and the columns of the lifting mast, not shown here, while upward and to the load of the cross member 12 acts as a guard. In the lowered position of the fork carrier 10, this attachment also allows the reading of RFID transponders, which are mounted in the road, for example, to transmit a position indication. Also, the field of view of the operator with lowered fork carriage 10, so for example when driving and maneuvering, practically not affected by the deep attachment.

In Figur 1b ist die Antenne 16 oberhalb des untersten Querträgers 12 des Gabelträgers 10 und unterhalb des obersten Querträgers 13 zwischen den Rollenhaltern 14 angebracht. Wiederum ist die Vorderkante 17a des Gehäuses 17 hinter der der Last abgewandten Seite der durch die Mittellinien 18 des oberen Querträgers 13 und des unteren Querträgers 12 definierten Ebene angeordnet. Die Antenne 16 ist an dieser Stelle besonders gut geschützt, da zur Seite hin die Rollenhalter 14 und die hier nicht dargestellten Säulen des Hubmasts sowie zur Last hin und nach oben der obere Querträger 13 und zur Last hin sowie nach unten der untere Querträger 12 Schutz vor Beschädigungen bieten. Auch hier wird das Sichtfeld der Bedienperson bei abgesenktem Gabelträger 10 nur wenig eingeschränkt.In FIG. 1b the antenna 16 is mounted above the lowermost cross member 12 of the fork carriage 10 and below the uppermost cross member 13 between the roll holders 14. Again, the front edge 17a of the housing 17 is disposed behind the side facing away from the load of the plane defined by the center lines 18 of the upper cross member 13 and the lower cross member 12. The antenna 16 is particularly well protected at this point, since to the side of the roll holder 14 and the columns of the lifting mast not shown here and to the load up and up the upper cross member 13 and the load and down the lower cross member 12 protection Damage offer. Again, the field of view of the operator is lowered only slightly with lowered fork carriage 10.

In Figur 1c ist die Antenne 16 oberhalb des obersten Querträgers 13 des Gabelträgers 10 angebracht. Wiederum ist die Vorderkante 17a des Gehäuses 17 hinter der der Last abgewandten Seite der durch die Mittellinien 18 des oberen Querträgers 13 und des unteren Querträgers 12 definierten Ebene angeordnet. Die Antenne 16 ist an dieser Stelle besonders zur Seite hin durch das hier nicht dargestellte Hubgerüst und sowie zur Last nach unten durch den oberen Querträger 13 geschützt. Besonders vorteilhaft bei dieser Anordnung ist die geringe Abschattung der Antenne 16 und bei Arbeiten in mittleren und großen Hubhöhen die geringe Einschränkung des Sichtfeldes der Bedienperson.In Figure 1c the antenna 16 is mounted above the uppermost cross member 13 of the fork carriage 10. Again, the front edge 17a of the housing 17 is disposed behind the side facing away from the load of the plane defined by the center lines 18 of the upper cross member 13 and the lower cross member 12. The antenna 16 is protected at this point especially to the side by the mast, not shown here and as well as the load down through the upper cross member 13. Particularly advantageous in this arrangement is the low shading of the antenna 16 and when working in medium and large lifting heights the small limitation of the field of view of the operator.

Die Befestigung des Gehäuses 17 erfolgt beispielsweise über Verschraubungen an einem der Querträger 12, 13 des Gabelträgers 10 oder mit anderen geeigneten Mitteln nach dem Stand der Technik. Je nach Anwendungsfall sind auch andere erfindungsgemäße Anbringungsorte denkbar, beispielsweise seitlich des Hubgerüsts.The fastening of the housing 17 takes place, for example, via screw connections on one of the cross members 12, 13 of the fork carriage 10 or with other suitable means according to the prior art. Depending on the application, other attachment locations according to the invention are also conceivable, for example laterally of the mast.

Je nach Einsatzbedingungen sind die verwendeten Kommunikationsvorrichtungen 16 zum Empfang und/oder zur Aussendung von Signalen in einem Wellenlängenbereich von 868 MHZ bis 920 MHz und/oder in einem Wellenlängenbereich von 125 bis 135 kHz und/oder mit einer Wellenlänge von annähernd 13,56 MHz und/oder annähernd 2,45 GHz vorgesehen und vorzugsweise zur Kommunikation mit aktiven wie passiven Transpondern geeignet. Neben einer Antenne 16 können auch weitere Einrichtungen zur Verarbeitung und Auswertung der empfangenen und/oder zu sendenden Signale im Gehäuse 7, 17 angeordnet sein.Depending on the conditions of use, the communication devices 16 used for receiving and / or transmitting signals in a wavelength range of 868 MHz to 920 MHz and / or in a wavelength range of 125 to 135 kHz and / or with a wavelength of approximately 13.56 MHz and or approximately 2.45 GHz and preferably suitable for communication with active and passive transponders. In addition to an antenna 16, other devices for processing and evaluating the received and / or signals to be transmitted in the housing 7, 17 may be arranged.

Selbstverständlich ist es möglich, mehrere Kommunikationsvorrichtungen 16 an verschiedenen der in den Ausführungsbeispielen gezeigten Stellen gleichzeitig anzubringen. Dies bietet den Vorteil, dass durch Vergleich der empfangenen Daten die Sicherheit verbessert werden kann.Of course, it is possible to simultaneously mount a plurality of communication devices 16 at different locations shown in the embodiments. This offers the advantage that security can be improved by comparing the received data.

Die Verbindung zwischen der Kommunikationsvorrichtung 16 und einer nicht dargestellten Auswerteeinheit erfolgt in allen Ausführungsbeispielen über eine nicht dargestellte Kabelverbindung, es sind jedoch auch andere Verbindungen nach dem Stand der Technik denkbar, beispielsweise über Funk oder Infrarot.The connection between the communication device 16 and an evaluation unit, not shown, takes place in all embodiments via a cable connection, not shown, but other connections according to the prior art are conceivable, for example via radio or infrared.

Claims (8)

  1. Industrial truck having at least one vertically movable fork carrier (10) which comprises at least two transverse carriers (12, 13), and at least one device (16) which is arranged in the region of the fork carrier (10) and has the purpose of carrying out wireless communication with an RFID transponder mounted on a pallet,
    characterized
    in that at least one device (16) for carrying out wireless communication is arranged on the fork carrier (10) behind the side, facing away from the load, of the plane defined by the centre line (18) of at least two transverse carriers (12, 13) of the vertically movable fork carrier (10).
  2. Industrial truck according to Claim 1, characterized in that the device (16) for carrying out wireless communication is arranged underneath the lowest transverse carrier (12) of the fork carrier (10).
  3. Industrial truck according to Claim 1, characterized in that the device for carrying out wireless communication (16) is arranged above the lowest transverse carrier (12) of the fork carrier (10) and underneath the top transverse carrier (13) of the fork carrier (10).
  4. Industrial truck according to Claim 1, characterized in that the device (16) for carrying out wireless communication is arranged above the top transverse carrier (13) of the fork carrier (10).
  5. Industrial truck according to one of Claims 1 to 4, characterized in that the device (16) for carrying out wireless communication is arranged between two columns, spaced apart in the transverse direction of the vehicle, of a lifting mast of the industrial truck.
  6. Industrial truck according to one of Claims 1 to 4, characterized in that the device (16) for carrying out wireless communication is arranged laterally outside two columns of a lifting mast of the industrial truck which are spaced apart from one another in the transverse direction of the vehicle.
  7. Industrial truck according to one of Claims 1 to 6, characterized in that the device (16) for carrying out wireless communication with an RFID transponder is provided for receiving and/or emitting signals in a wavelength range from 868 MHz to 920 MHz and/or in a wavelength range from 125 to 135 kHz and/or with a wavelength of approximately 13.56 MHz and/or with a wavelength of approximately 2.45 GHz.
  8. Industrial truck according to one of Claims 1 to 7, characterized in that the communication device (16) is embodied in such a way that communication with active and/or passive transponders is made possible.
EP06007148.7A 2005-04-06 2006-04-04 Floor conveyor comprising a device for picking up loads Not-in-force EP1710203B1 (en)

Applications Claiming Priority (1)

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DE200520005409 DE202005005409U1 (en) 2005-04-06 2005-04-06 Industrial truck with a load handling device

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EP1710203B1 true EP1710203B1 (en) 2016-08-31

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DE202005015095U1 (en) 2005-09-24 2006-01-19 Jungheinrich Aktiengesellschaft System for detection and management of pallets
DE102005045721A1 (en) * 2005-09-24 2007-03-29 Jungheinrich Ag System for assisting a driver of a truck while driving
DE102006014448A1 (en) * 2006-03-29 2007-10-04 Jungheinrich Aktiengesellschaft Industrial truck for transporting e.g. packed food, has control unit activating transmitting and receiving unit for reading data from transponders during transportation, and receiving data from one of transponders of loading goods
US7504948B2 (en) * 2006-04-26 2009-03-17 Symbol Technologies, Inc. Wireless rugged mobile data capture device with integrated RFID reader
DE102007028694A1 (en) 2007-06-21 2008-12-24 Still Gmbh Industrial truck, particularly counterbalance fork-lift truck, has fork carrier vertically moved in lifting gear, in which communication device is arranged for wireless communication with radio frequency identification transponder
DE102007032191A1 (en) 2007-07-11 2009-01-15 Jungheinrich Ag Truck with at least one antenna for sending and receiving data
DE102007061707A1 (en) 2007-12-19 2009-06-25 Technische Universität München Industrial truck with an RFID-based device for the identification of cargo
CN102105896A (en) * 2008-07-15 2011-06-22 卡梅尔集装箱系统有限公司 Smart logistic system with rfid reader mounted on a forklift tine
DE202010012161U1 (en) 2010-09-02 2011-01-05 Sae Schaarschmidt Analytic Engineering Gmbh Industrial truck
DE102015118651A1 (en) * 2015-10-30 2017-05-04 Still Gmbh Auxiliary equipment holder for trucks with wheel arms
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EP1710203A1 (en) 2006-10-11

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