EP2455323A2 - Glass sheet transport vehicle - Google Patents
Glass sheet transport vehicle Download PDFInfo
- Publication number
- EP2455323A2 EP2455323A2 EP11189543A EP11189543A EP2455323A2 EP 2455323 A2 EP2455323 A2 EP 2455323A2 EP 11189543 A EP11189543 A EP 11189543A EP 11189543 A EP11189543 A EP 11189543A EP 2455323 A2 EP2455323 A2 EP 2455323A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- stack
- support
- glass plate
- fork
- support frame
- 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
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/12—Platforms; Forks; Other load supporting or gripping members
- B66F9/18—Load gripping or retaining means
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- 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
- B66F17/00—Safety devices, e.g. for limiting or indicating lifting force
- B66F17/003—Safety devices, e.g. for limiting or indicating lifting force for fork-lift trucks
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/12—Platforms; Forks; Other load supporting or gripping members
-
- 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
Definitions
- the invention relates to a glass plate transport vehicle for the handling of substantially upright stacks of glass plates, comprising a supporting fork tines supporting fork for driving under at least one stack, with a support frame for supporting a collapsed stack, and at least one approximately parallel to the support frame displaceable holding claw.
- Such a vehicle is known for example from the company Hubtex Maschinenbau GmbH & Co. KG under the name "M 60". It serves for receiving and depositing substantially upright stacks of glass plates from or on shelves in which they are mounted at approximately perpendicular to the surface of the glass plates extending floor supports at a distance from the ground.
- the glass plate transport vehicle is for this purpose equipped with a chassis, which is suitable for driving over the floor support.
- the glass plate transport vehicle has an approximately vertical mast, which can be inclined about a transverse to the forward direction of travel of the vehicle axis at a maximum angle of 10 ° in both directions from the vertical.
- On the mast are the support forks, the support frame and the Garpratzen arranged height adjustable.
- the support frame and the holding claws in the forward direction can be moved back and forth.
- the individual stacks of glass plates are spaced apart by means of spacers inserted between them. The distance is usually between 20 and 50 mm.
- the support fork is brought by an operator of the glass plate transport vehicle in a position in which the lower edge of the stack can be traversed by the support fork tines.
- the operator is in the underrun operation in a position that allows it to look through from above through the space between two adjacent stacks and to control when the front ends of the support forks so far in the distance space between the last still to be absorbed and the first still on the pile to leave pile so that the last pile to be picked up can be picked up by lifting the support fork, without the tips of the support fork tines damaging the glass plate stack lingering on the floor beams.
- the forward movement of the vehicle or the mast is stopped and the support frame is displaced against the glass plate closest to the vehicle and the mast tilted into a position that allows a flat contact of the glass plate on the support frame when lifting from the floor beams.
- the holding claws are lowered from above into the space between the last to be lifted and the first, to be left on the floor supports glass plate stack to accommodate the glass plate stack and secure against tipping, for example during braking.
- the invention is therefore based on the object to provide a glass plate transport vehicle, which is improved at least with regard to one of the aforementioned disadvantages.
- devices communicating with each other for detecting an object located between the two free ends are provided at the free end of at least one supporting fork tine and at the free end of at least one holding claw arranged above the supporting fork tine, stacks and spacing spaces between the stacks can be detected when driving under. It is thus possible for the operator to deduce from the signals emitted by the communicating devices when the free end of the supporting fork tine is below a stack and below a gap between two successive stacks when the stack is being driven down. Thus, on the one hand, the operator can, on the one hand due to the signals, count down the number of stacks run down by the free end of the supporting fork tine and, on the other hand, stop the vehicle when the free end is in a gap. Thus, to accurately position the vehicle for the picking operation, the operator no longer has to lean up above the stacks, thereby facilitating vehicle maneuverability and significantly reducing the risk of injury.
- the devices arranged at the free end of at least one support fork tine and at the holding claw located above the same comprise, in a preferred embodiment, a light barrier arrangement.
- a light barrier arrangement comprising lasers, ultrasound-based devices or inductive proximity sensors is also conceivable.
- a distance sensor for measuring the horizontal distance between the free end of the supporting fork tine and an object located in front of the supporting fork tines is provided on at least one supporting fork tine
- the operator obtains information about the distance between the free fork tine end and a glass plate stack located on bottom shelf carriers, again without requiring the operator to bend over transported glass-plate stacks. Due to this measure is at at the same time reducing the risk of accident ensures that when entering the glass plate transport vehicle in the shelf for the purpose of depositing glass plate stacks on the bottom support the free end of the fork tine collides with a stack already on the bottom carriers and this is damaged.
- this sensor can be used to bring the free end of the support fork tine in the position suitable for lifting the stack. The retraction of the holding claw is then under visual supervision by the driver.
- At least two pressure sensors for detecting the support pressure between the adjoining stack and the support frame can be provided horizontally spaced from one another on the support frame. If these sensors detect different support pressures, this indicates that the support frame does not lie flat against the glass plate closest to the vehicle. As a result, local loads can occur, which can lead to damage to this glass plate or even the whole stack. If the pressure sensors indicate different support pressures, the operator has the option of counteracting them by pivoting the support frame and / or turning the vehicle. Also, too high pressures can affect the functionality.
- At least one of the supporting fork tines can comprise on its upper side a touch sensor which can provide the operator with information as to whether the supporting fork tine is loaded by a stack of glass plates or not. This information is of particular importance to the operator, since resetting the glass panel transport vehicle after settling on the floor beams prior to complete unloading of the supporting fork tine would cause the support fork tines to scrape along the bottom of the stack or the bottom of the stack along the floor beams and would be damaged with a relatively high probability.
- a distance sensor for monitoring the vertical distance between the free end of the supporting fork tine and an object arranged above the supporting fork tine can be provided on at least one supporting fork tine. This measure prevents that Glass plate transport vehicle or at least the mast unnoticed in the shelf for receiving a stack can be retracted when the support fork tines is still in a high position in which he would collide with the first glass plate stack of the shelf. Even when retracting / extending can be ensured after weaning that the fork tine is free.
- the measured values or signals detected by the above-described sensors or devices are preferably transmitted to a detection and display device provided on the vehicle, which is preferably located in the field of vision of the operator. It can then operate the glass plate transport vehicle depending on the displayed signals and measured values.
- the detection and display device is operatively connected to a control device controlling the vehicle functions.
- the vehicle may be stopped when one of the sensors or the device signals an imminent collision of the free supporting fork tine end with an obstacle, in particular with a glass plate stack.
- the vehicle is automatically stopped when the desired, predetermined number of glass plate stacks to be picked up are traversed and the free supporting fork tine end is located in a space between two adjacent glass plate stacks.
- the designated in the drawing as a whole with 100 glass plate transport vehicle comprises a biaxial chassis 1, the wheels 2, 3 are arranged steerable by 180 °.
- On the chassis 1 is a to a transverse to the forward direction (V in Fig. 2 ) extending axis A to the front and rear of the vertical tiltable mast 4 is arranged. He wears raised and lowered a control station 5 for an operator and a handling device for a glass plate stack. 7
- the handling device 6 comprises a support fork 10 having two support fork tines 8, 9, a support frame 11 for supporting a glass plate transport stack during handling, and two holding claws 12, 13. Furthermore, suction devices 14 are provided on the handling device 6 by means of which the glass plate facing the glass plate transporting vehicle is sucked can be.
- Fig. 2 can be removed, the holding claws 12, 13 provided by a distance X in the forward direction of the vehicle displaced.
- the glass plate transport vehicle is used in particular for receiving or depositing stacks of glass plates from or in a shelf 15, which comprises shelf supports 16, on which the glass plate stacks are supported.
- the devices 17, 18 include in the in Fig. 3 illustrated embodiment, a light barrier arrangement 20, which includes a light source on the holding claws 12, 13, a light sensor on the support fork tines.
- the glass plate transport vehicle 100 comprises - as in FIG Fig. 4 is schematically shown - at the free ends of the support fork tines 8, 9 distance sensors 21 for measuring the horizontal distance between the free end of the support fork tine and arranged in front of the supporting fork tine nearby object, such as a glass plate stack 7.
- the distance measurement is in Fig. 4 symbolized by the double arrow D.
- the operator is able to settle a glass plate stack 7 in a shelf 15 while avoiding a collision of the free ends of the support fork tines 8, 9 with a glass shelf already in the shelf 15 7 without this being the optical contact with the support fork tines 8, 9 required.
- pressure sensors 22, 23 are arranged horizontally spaced from each other, at which the supporting frame 11 closest to the glass plate transport stack is supported. With the help of the pressure values detected by the pressure sensors, it can be determined whether the glass plate stack 7 rests evenly on the support frame 11, and the vehicle or the handling device can be selectively aligned if necessary.
- the support fork tines 8, 9 on the upper side touch sensors 24 serve in particular to check whether a glass plate stack 7 has been completely set down on the bottom supports 16 of a shelf 15 before the vehicle is moved in the reverse direction R.
- distance sensors 25 are provided for measuring the vertical distance between the free end of the respective supporting fork tine and an object disposed above the supporting fork tine at the free ends of the fork tine carriers 8, 9, as in FIG Fig. 7 should be clarified. With the help of these distance sensors can be avoided that the glass plate transport vehicle is moved in the forward direction of travel V in the shelf 15 at a too high position of the support fork tines 8, 9 in.
- serving embodiments have independent inventive significance and need not - as is the case in the embodiment described above - be realized together on one and the same vehicle.
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Abstract
Description
Die Erfindung betrifft ein Glasplattentransportfahrzeug für das Handling von im Wesentlichen aufrecht stehenden Stapeln von Glasplatten, mit einer Traggabelzinken umfassenden Traggabel zum Unterfahren zumindest eines Stapels, mit einem Stützrahmen zum Abstützen eines unterfahrenen Stapels, und mit mindestens einer etwa parallel zum Stützrahmen verlagerbaren Haltepratze.The invention relates to a glass plate transport vehicle for the handling of substantially upright stacks of glass plates, comprising a supporting fork tines supporting fork for driving under at least one stack, with a support frame for supporting a collapsed stack, and at least one approximately parallel to the support frame displaceable holding claw.
Ein derartiges Fahrzeug ist beispielsweise von der Firma Hubtex Maschinenbau GmbH & Co. KG unter der Bezeichnung "M 60" bekannt. Es dient dem Aufnehmen und Absetzen von im Wesentlichen aufrecht stehenden Stapeln von Glasplatten aus oder in Regalen, in denen sie auf etwa senkrecht zur Oberfläche der Glasplatten sich erstreckenden Bodenträgern mit Abstand zum Boden gelagert sind.Such a vehicle is known for example from the company Hubtex Maschinenbau GmbH & Co. KG under the name "M 60". It serves for receiving and depositing substantially upright stacks of glass plates from or on shelves in which they are mounted at approximately perpendicular to the surface of the glass plates extending floor supports at a distance from the ground.
Das Glasplattentransportfahrzeug ist hierzu mit einem Fahrgestell ausgerüstet, welches zum Überfahren der Bodenträger geeignet ist.The glass plate transport vehicle is for this purpose equipped with a chassis, which is suitable for driving over the floor support.
Das Glasplattentransportfahrzeug weist einen etwa senkrecht stehenden Mast auf, welcher um eine quer zur Vorwärtsfahrtrichtung des Fahrzeugs verlaufende Achse im Winkel von maximal 10° in beide Richtungen aus der Senkrechten geneigt werden kann. An dem Mast sind die Traggabeln, der Stützrahmen und die Haltepratzen höhenverstellbar angeordnet. Darüber hinaus können der Stützrahmen und die Haltepratzen in Vorwärtsfahrtrichtung vor und zurück verlagert werden. Um bestimmte Mengen an Glasplatten entnehmen zu können, sind die einzelnen Stapel von Glasplatten mit Hilfe von zwischen diesen eingesetzten Abstandshaltern voneinander beabstandet. Der Abstand beträgt regelmäßig zwischen 20 und 50 mm.The glass plate transport vehicle has an approximately vertical mast, which can be inclined about a transverse to the forward direction of travel of the vehicle axis at a maximum angle of 10 ° in both directions from the vertical. On the mast are the support forks, the support frame and the Haltepratzen arranged height adjustable. In addition, the support frame and the holding claws in the forward direction can be moved back and forth. In order to remove certain quantities of glass plates, the individual stacks of glass plates are spaced apart by means of spacers inserted between them. The distance is usually between 20 and 50 mm.
Um nun eine bestimmte Anzahl von Stapeln entnehmen zu können, wird die Traggabel von einer Bedienperson des Glasplattentransportfahrzeugs in eine Position gebracht, in welcher der untere Rand des Stapels von den Traggabelzinken unterfahren werden kann. Die Bedienperson befindet sich bei dem Unterfahrvorgang in einer Position, die es ihr erlaubt, von oben durch den Abstandsraum zwischen zwei benachbarten Stapeln hindurchzuschauen und zu kontrollieren, wann die vorderen Enden der Traggabelzinken soweit in den Abstandsraum zwischen dem letzten noch aufzunehmenden und dem ersten noch auf den Bodenträgern zu belassenden Stapel ragen, damit der letzte aufzunehmende Stapel durch Anheben der Traggabel aufgenommen werden kann, ohne dass die Spitzen der Traggabelzinken hierbei den auf den Bodenträgern verweilenden Glasplattenstapel beschädigen.In order to be able to remove a certain number of stacks, the support fork is brought by an operator of the glass plate transport vehicle in a position in which the lower edge of the stack can be traversed by the support fork tines. The operator is in the underrun operation in a position that allows it to look through from above through the space between two adjacent stacks and to control when the front ends of the support forks so far in the distance space between the last still to be absorbed and the first still on the pile to leave pile so that the last pile to be picked up can be picked up by lifting the support fork, without the tips of the support fork tines damaging the glass plate stack lingering on the floor beams.
Nach Erreichen dieser Fahrposition wird die Vorwärtsfahrt des Fahrzeugs oder des Hubmastes gestoppt und der Stützrahmen gegen die dem Fahrzeug nächstliegende Glasplatte verlagert und der Mast in eine Position geneigt, die eine flächige Anlage der Glasplatte an dem Stützrahmen beim Anheben von den Bodenträgern erlaubt.After reaching this driving position, the forward movement of the vehicle or the mast is stopped and the support frame is displaced against the glass plate closest to the vehicle and the mast tilted into a position that allows a flat contact of the glass plate on the support frame when lifting from the floor beams.
Vor dem Anhebevorgang werden die Haltepratzen von oben in den Abstandsraum zwischen den letzten anzuhebenden und den ersten, auf den Bodenträgern zu belassenden Glasplattenstapel gesenkt, um die Glasplattenstapel aufzunehmen und vor einem Abkippen beispielsweise bei Bremsvorgängen zu sichern.Before the lifting process, the holding claws are lowered from above into the space between the last to be lifted and the first, to be left on the floor supports glass plate stack to accommodate the glass plate stack and secure against tipping, for example during braking.
Das Absetzen von Stapeln in derartige Bodenregalträger umfassende Regale erfolgt entsprechend umgekehrt.The discontinuation of stacks in shelves such shelves comprehensive shelves is reversed accordingly.
An die Bedienperson stellt dieses Handling von Stapeln von Glasplatten erhebliche Anforderungen. So muss sie sicherstellen, dass zum Aufnehmen die Traggabelzinken soweit abgesenkt sind, dass die aufzunehmenden Glasplattenstapel auch unterfahren werden. Eine zu hohe Position durch eine Nachlässigkeit würde nahezu zwangsläufig zu einer Zerstörung zumindest eines Teils der Glasplatten eines Stapels führen. Darüber hinaus muss die Bedienperson sich soweit von oben über die aufzunehmenden Stapel lehnen, dass sie durch einen Abstandsraum die vorderen Enden der Traggabelzinken erblicken kann, um das Fahrzeug in der zur Aufnahme der Glasplattenstapel benötigten Position anhalten zu können. Dieses Unterfangen ist mit zunehmender Stapeldicke oder Stapelanzahl erschwert, da sich die Bedienperson immer weiter von ihrem Bedienstand hinauslehnen muss. Hierzu nimmt sie regelmäßig Haltungen ein, die stark Wirbelsäulen beanspruchend sind. Darüber hinaus befindet sie sich beim Hinauslehnen in einer gefährlichen Position. Denn sollte eine Glasplatte bersten, so besteht das erhebliche Verletzungsrisiko durch umher fliegende Glasplattenteile.This handling of stacks of glass plates places considerable demands on the operator. So she has to make sure that the support fork tines are lowered for picking up, so that the glass plates to be picked up can also be driven under. Too high a position due to carelessness would almost inevitably lead to the destruction of at least part of the glass plates of a stack. In addition, the operator must lean so far from above the male stack that they can see through a distance space, the front ends of the support fork tines to stop the vehicle in the required position for receiving the glass plate stack can. This endeavor is made more difficult with increasing stack thickness or number of stacks, as the operator must lean further and further from their operating position. For this purpose, she regularly takes attitudes that are strongly claiming spinal column. In addition, she is in a dangerous position when leaning out. Because should a glass plate burst, so there is a considerable risk of injury by flying glass plate parts.
Beim Absetzen eines Glasplattenstapels muss die Bedienperson sehr genau darauf achten, dass die Transportgabelzinken weder zu weit über den äußeren Glasplattenstapel vorstehen, da diese ansonsten den ersten, bereits auf den Bodenregalträgern befindlichen Glasplattenstapel treffen und möglicherweise beschädigen würden. Auch muss darauf geachtet werden, dass die Traggabelzinken beim Überfahren der Bodenträger ausreichend angehoben sind, um zu vermeiden, dass die transportierten Stapel über die Oberseiten der Bodenträger kratzen und hierdurch möglicherweise beschädigt werden.When placing a stack of glass trays, the operator must be very careful not to allow the transport fork tines to protrude too far beyond the outer stack of glass trays, otherwise they would hit and possibly damage the first stack of glass trays already on the shelf trays. Care must also be taken to ensure that the support fork tines are sufficiently raised when passing over the floor supports to avoid scratching the transported stacks over the tops of the floor supports and possibly causing damage.
Schließlich können beim Aufnehmen Glasplatten beschädigt werden, wenn die dem Fahrzeug nächstliegende Glasplatte des erstaufgenommenen Stapels nicht flächig an dem Stützrahmen anliegen, sondern lediglich an einem Rand des Stützrahmens.Finally, when picking up glass plates may be damaged if the closest to the vehicle glass plate of the first recorded stack does not lie flat against the support frame, but only at one edge of the support frame.
Der Erfindung liegt daher die Aufgabe zugrunde, ein Glasplattentransportfahrzeug zu schaffen, welches zumindest hinsichtlich eines der vorgenannten Nachteile verbessert ist.The invention is therefore based on the object to provide a glass plate transport vehicle, which is improved at least with regard to one of the aforementioned disadvantages.
Diese Aufgabe wird durch das in den Ansprüchen 1, 3, 4, 5 oder 6 wiedergegebene Glasplattentransportfahrzeug gelöst.This object is achieved by the reproduced in
Wenn an dem freien Ende zumindest eines Traggabelzinkens und an dem freien Ende zumindest einer oberhalb des Traggabelzinkens angeordneten Haltepratze miteinander kommunizierende Einrichtungen zur Erfassung eines zwischen den beiden freien Enden befindlichen Gegenstandes vorgesehen sind, können beim Unterfahren Stapel und Abstandsräume zwischen den Stapeln detektiert werden. Der Bedienperson ist es somit möglich, anhand der von den kommunizierenden Einrichtungen abgegebenen Signale darauf zu schließen, wann sich beim Unterfahren der Stapel das freie Ende des Traggabelzinkens unterhalb eines Stapels und unterhalb eines Zwischenraumes zwischen zwei aufeinanderfolgenden Stapeln befindet. Die Bedienperson kann somit einerseits aufgrund der Signale die Anzahl der von dem freien Ende des Traggabelzinkens unterfahrenen Stapel abzählen, andererseits das Fahrzeug stoppen, wenn sich das freie Ende in einem Zwischenraum befindet. Zum exakten Positionieren des Fahrzeugs für den Entnahmevorgang muss die Bedienperson sich somit nicht mehr oben über die Stapel lehnen, wodurch die Fahrzeugmanövrierung erleichtert und das Verletzungsrisiko wesentlich reduziert wird.If devices communicating with each other for detecting an object located between the two free ends are provided at the free end of at least one supporting fork tine and at the free end of at least one holding claw arranged above the supporting fork tine, stacks and spacing spaces between the stacks can be detected when driving under. It is thus possible for the operator to deduce from the signals emitted by the communicating devices when the free end of the supporting fork tine is below a stack and below a gap between two successive stacks when the stack is being driven down. Thus, on the one hand, the operator can, on the one hand due to the signals, count down the number of stacks run down by the free end of the supporting fork tine and, on the other hand, stop the vehicle when the free end is in a gap. Thus, to accurately position the vehicle for the picking operation, the operator no longer has to lean up above the stacks, thereby facilitating vehicle maneuverability and significantly reducing the risk of injury.
Die an dem freien Ende zumindest eines Traggabelzinkens und an der oberhalb desselben befindlichen Haltepratze angeordneten Einrichtungen umfassen bei einer bevorzugten Ausführungsform eine Lichtschrankenanordnung. Auch ist die Verwendung beispielsweise von Laser umfassenden Anordnungen, Ultraschall basierenden Einrichtungen oder induktiven Näherungssensoren denkbar.The devices arranged at the free end of at least one support fork tine and at the holding claw located above the same comprise, in a preferred embodiment, a light barrier arrangement. The use of, for example, arrangements comprising lasers, ultrasound-based devices or inductive proximity sensors is also conceivable.
Wenn an mindestens einem Traggabelzinken ein Entfernungssensor zum Messen der horizontalen Entfernung zwischen dem freien Ende des Traggabelzinkens und einem vor dem Traggabelzinken in der Nähe angeordneten Gegenstands vorgesehen ist, erhält die Bedienperson Informationen über den Abstand zwischen dem freien Gabelzinkenende und einem auf Bodenregalträgern befindlichen Glasplattenstapel, wiederum ohne dass ein Vornüberbeugen der Bedienperson über transportierte Glasplattenstapel notwendig ist. Aufgrund dieser Maßnahme wird bei gleichzeitiger Reduzierung des Unfallrisikos sichergestellt, dass beim Einfahren des Glasplattentransportfahrzeugs in das Regal zum Zwecke des Absetzens von Glasplattenstapeln auf die Bodenträger das freie Ende des Gabelzinkens mit einem bereits auf den Bodenträgern befindlichen Stapel kollidiert und dieser beschädigt wird. Auch kann dieser Sensor genutzt werden, um das freie Ende des Traggabelzinkens in die zum Anheben des Stapels geeignete Position zu bringen. Das Einfahren der Haltepratze erfolgt dann unter optischer Überwachung durch den Fahrer.When a distance sensor for measuring the horizontal distance between the free end of the supporting fork tine and an object located in front of the supporting fork tines is provided on at least one supporting fork tine, the operator obtains information about the distance between the free fork tine end and a glass plate stack located on bottom shelf carriers, again without requiring the operator to bend over transported glass-plate stacks. Due to this measure is at at the same time reducing the risk of accident ensures that when entering the glass plate transport vehicle in the shelf for the purpose of depositing glass plate stacks on the bottom support the free end of the fork tine collides with a stack already on the bottom carriers and this is damaged. Also, this sensor can be used to bring the free end of the support fork tine in the position suitable for lifting the stack. The retraction of the holding claw is then under visual supervision by the driver.
An dem Stützrahmen können erfindungsgemäß horizontal voneinander beabstandet mindestens zwei Drucksensoren zum Erfassen des Stützdrucks zwischen dem anliegenden Stapel und dem Stützrahmen vorgesehen sein. Erfassen diese Sensoren unterschiedliche Stützdrucke, so deutet dies darauf hin, dass der Stützrahmen nicht flächig an der dem Fahrzeug nächstliegenden Glasplatte anliegt. Hierdurch können lokale Belastungen auftreten, die zu einer Beschädigung dieser Glasplatte oder gar des ganzen Stapels führen können. Sollten die Drucksensoren unterschiedliche Stützdrucke anzeigen, so hat die Bedienperson die Möglichkeit, durch Schwenken des Stützrahmens und/oder Drehen des Fahrzeugs entgegenzuwirken. Auch können zu hohe Drücke die Funktionalität beeinträchtigen.According to the invention, at least two pressure sensors for detecting the support pressure between the adjoining stack and the support frame can be provided horizontally spaced from one another on the support frame. If these sensors detect different support pressures, this indicates that the support frame does not lie flat against the glass plate closest to the vehicle. As a result, local loads can occur, which can lead to damage to this glass plate or even the whole stack. If the pressure sensors indicate different support pressures, the operator has the option of counteracting them by pivoting the support frame and / or turning the vehicle. Also, too high pressures can affect the functionality.
Zumindest einer der Traggabelzinken kann erfindungsgemäß an seiner Oberseite einen Berührungssensor umfassen, welcher der Bedienperson Hinweise liefern kann, ob der Traggabelzinken von einem Glasplattenstapel belastet ist oder nicht. Diese Information ist für die Bedienperson von besonderer Bedeutung, da ein Zurücksetzen des Glasplattentransportfahrzeugs nach dem Absetzen auf den Bodenträgern vor der vollständigen Entlastung des Traggabelzinkens dazu führen würde, dass der Traggabelzinken an der Unterseite des Stapels oder die Unterseite des Stapels auf den Bodenträgern entlang schrammen und mit relativ großer Wahrscheinlichkeit beschädigt würde.According to the invention, at least one of the supporting fork tines can comprise on its upper side a touch sensor which can provide the operator with information as to whether the supporting fork tine is loaded by a stack of glass plates or not. This information is of particular importance to the operator, since resetting the glass panel transport vehicle after settling on the floor beams prior to complete unloading of the supporting fork tine would cause the support fork tines to scrape along the bottom of the stack or the bottom of the stack along the floor beams and would be damaged with a relatively high probability.
Auch kann erfindungsgemäß an mindestens einem Traggabelzinken ein Abstandssensor zum Überwachen des vertikalen Abstandes zwischen dem freien Ende des Traggabelzinkens und einem oberhalb des Traggabelzinkens angeordneten Gegenstands vorgesehen sein. Diese Maßnahme verhindert, dass das Glasplattentransportfahrzeug oder zumindest der Mast unbemerkt in das Regal zwecks Aufnahme eines Stapels eingefahren werden kann, wenn sich der Traggabelzinken noch in einer zu hohen Position befindet, in welcher er mit dem ersten Glasplattenstapel des Regals kollidieren würde. Auch beim Zurückziehen/Ausfahren kann nach dem Absetzen sichergestellt werden, dass die Gabelzinke frei ist.Also, according to the invention, a distance sensor for monitoring the vertical distance between the free end of the supporting fork tine and an object arranged above the supporting fork tine can be provided on at least one supporting fork tine. This measure prevents that Glass plate transport vehicle or at least the mast unnoticed in the shelf for receiving a stack can be retracted when the support fork tines is still in a high position in which he would collide with the first glass plate stack of the shelf. Even when retracting / extending can be ensured after weaning that the fork tine is free.
Die von den vorbeschriebenen Sensoren oder Einrichtungen erfassten Messwerte oder Signale werden vorzugsweise einer an dem Fahrzeug vorgesehenen Erfassungs- und Anzeigeeinrichtung übermittelt, die sich vorzugsweise in dem Sichtfeld der Bedienperson befindet. Sie kann dann das Glasplattentransportfahrzeug in Abhängigkeit der angezeigten Signale und Messwerte betätigen.The measured values or signals detected by the above-described sensors or devices are preferably transmitted to a detection and display device provided on the vehicle, which is preferably located in the field of vision of the operator. It can then operate the glass plate transport vehicle depending on the displayed signals and measured values.
Besonders bevorzugt ist es jedoch, wenn die Erfassungs- und Anzeigeeinrichtung mit einer die Fahrzeugfunktionen steuernden Steuereinrichtung wirkverbunden ist. In diesem Fall kann beispielsweise das Fahrzeug angehalten werden, wenn einer der Sensoren oder die Einrichtung eine bevorstehende Kollision des freien Traggabelzinkenendes mit einem Hindernis, insbesondere mit einem Glasplattenstapel signalisiert. Oder das Fahrzeug wird automatisch angehalten, wenn die gewünschte, vorgegebene Anzahl von aufzunehmenden Glasplattenstapeln unterfahren ist und sich das freie Traggabelzinkenende in einem Abstandsraum zwischen zwei benachbarten Glasplattenstapeln befindet.However, it is particularly preferred if the detection and display device is operatively connected to a control device controlling the vehicle functions. In this case, for example, the vehicle may be stopped when one of the sensors or the device signals an imminent collision of the free supporting fork tine end with an obstacle, in particular with a glass plate stack. Or the vehicle is automatically stopped when the desired, predetermined number of glass plate stacks to be picked up are traversed and the free supporting fork tine end is located in a space between two adjacent glass plate stacks.
Die Erfindung soll nun anhand der Zeichnung weiter erläutert werden. Es zeigen:
- Fig. 1
- ein Ausführungsbeispiel des erfindungsgemäßen Glasplattentransportfahrzeugs in einer perspektivischen Ansicht von schräg vorn;
- Fig. 2
- dasselbe Ausführungsbeispiel in einer Seitenansicht;
- Fig. 3
- - schematisch - die Wirkungsweise eines ersten erfindungsgemäßen Glasplattentransportfahrzeugs in einer Seitenansicht eines Glasplattenstapellagers;
- Fig. 4
- - wiederum schematisch - die Wirkungsweise eines zweiten erfindungsgemäßen Glasplattentransportfahrzeugs in entsprechender Ansicht;
- Fig. 5
- - wiederum schematisch - ein drittes erfindungsgemäßes Glasplattentransportfahrzeug in einer Ansicht von oben;
- Fig. 6
- - wiederum schematisch - die Wirkungsweise eines vierten erfindungsgemäßen Glasplattentransportfahrzeugs in einer
Fig. 3 entsprechenden Ansicht sowie - Fig. 7
- - wiederum schematisch - die Wirkungsweise eines fünften erfindungsgemäßen Transportfahrzeugs in einer
Fig. 3 entsprechenden Ansicht.
- Fig. 1
- an embodiment of the glass plate transport vehicle according to the invention in a perspective view obliquely from the front;
- Fig. 2
- the same embodiment in a side view;
- Fig. 3
- - Schematically - the operation of a first glass plate transport vehicle according to the invention in a side view of a glass plate storage bin;
- Fig. 4
- - again schematically - the operation of a second glass plate transport vehicle according to the invention in a corresponding view;
- Fig. 5
- - again schematically - a third inventive glass plate transport vehicle in a view from above;
- Fig. 6
- - again schematically - the operation of a fourth glass plate transport vehicle according to the invention in one
Fig. 3 corresponding view as well - Fig. 7
- - again schematically - the mode of action of a fifth transport vehicle according to the invention in one
Fig. 3 corresponding view.
Das in der Zeichnung als Ganzes mit 100 bezeichnete Glasplattentransportfahrzeug umfasst ein zweiachsiges Fahrgestell 1, dessen Räder 2, 3 um 180° lenkbar angeordnet sind. An dem Fahrgestell 1 ist ein um eine quer zur Vorwärtsfahrtrichtung (V in
Die Handlingvorrichtung 6 umfasst eine zwei Traggabelzinken 8, 9 aufweisende Traggabel 10, einen Stützrahmen 11 zum Abstützen eines Glasplattentransportstapels während des Handlings, sowie zwei Haltepratzen 12, 13. Ferner sind an der Handlingvorrichtung 6 Saugeinrichtungen 14 vorgesehen, mittels welcher die dem Glasplattentransportfahrzeug zugewandte Glasplatte angesaugt werden kann.The
Wie
Das Glasplattentransportfahrzeug dient insbesondere der Aufnahme oder des Absetzens von Stapeln von Glasplatten aus bzw. in einem Regal 15, welches Bodenträger 16 umfasst, auf welchem sich die Glasplattenstapel abstützen.The glass plate transport vehicle is used in particular for receiving or depositing stacks of glass plates from or in a
Damit - wie insbesondere aus
Wenn das Glasplattentransportfahrzeug zum Unterfahren von Glasplattenstapeln 7 in Vorwärtsfahrtrichtung bewegt wird, so können über die Einrichtungen 17, 18 die Anzahl der von den freien Enden der Traggabelzinken 8, 9 unterfahrenen Glasplattenstapel 7 sowie die Position der freien Enden in einem Abstandsraum 19 erfasst und somit das Glasplattentransportfahrzeug in einer für die Entnahme perfekten Position angehalten werden, ohne dass die Bedienperson hierzu optischen Kontakt zu den Traggabelzinken 8, 9 herstellen müsste.When the glass plate transport vehicle is moved to move under glass plate stacks 7 in the forward direction, so can the
Ferner umfasst das Glasplattentransportfahrzeug 100 - wie in
Aufgrund der Entfernungssensoren 21 wird die Bedienperson in die Lage versetzt, einen Glasplattenstapel 7 in einem Regal 15 unter Vermeidung einer Kollision der freien Enden der Traggabelzinken 8, 9 mit einem bereits im Regal 15 befindlichen Glasplattenstapel 7 abzusetzen, ohne dass es hierzu des optischen Kontakts mit den Traggabelzinken 8, 9 bedarf.Due to the
Ferner sind an dem Stützrahmen 11 des Glasplattentransportfahrzeugs 100 Drucksensoren 22, 23 horizontal voneinander beabstandet angeordnet, an welchen sich der dem Stützrahmen 11 nächstkommende Glasplattentransportstapel abstützt. Mit Hilfe der von den Drucksensoren erfassten Druckwerte lässt sich bestimmen, ob der Glasplattenstapel 7 gleichmäßig an dem Stützrahmen 11 anliegt, und das Fahrzeug bzw. die Handlingvorrichtung kann im Bedarfsfall gezielt ausgerichtet werden.Further, on the
Ferner weisen die Traggabelzinken 8, 9 an deren Oberseite Berührungssensoren 24 auf. Diese dienen insbesondere der Prüfung, ob ein Glasplattenstapel 7 vollständig auf die Bodenträger 16 eines Regals 15 abgesetzt worden ist, bevor das Fahrzeug in Rückwärtsfahrtrichtung R bewegt wird.Furthermore, the support fork tines 8, 9 on the upper
Schließlich sind an den freien Enden der Gabelzinkenträger 8, 9 Abstandssensoren 25 zum Messen des vertikalen Abstandes zwischen dem freien Ende des jeweiligen Traggabelzinkens und einem oberhalb des Traggabelzinkens angeordneten Gegenstand vorgesehen, wie in
Den vorbeschriebenen, unterschiedlichen Funktionen, die die Sicherheit beim Handling von Glasplatten erhöhen, dienenden Ausgestaltungen kommen selbständige erfinderische Bedeutung zu und müssen nicht - wie dies beim vorbeschriebenen Ausführungsbeispiel der Fall ist - gemeinsam an ein und demselben Fahrzeug verwirklicht sein.The above-described, different functions, which increase the safety of handling glass plates, serving embodiments have independent inventive significance and need not - as is the case in the embodiment described above - be realized together on one and the same vehicle.
- 100100
- GlasplattentransportfahrzeugGlass plate transport vehicle
- 11
- Fahrgestellchassis
- 2, 32, 3
- Räderbikes
- 44
- Mastmast
- 55
- Bedienstandoperating platform
- 66
- Handlingvorrichtunghandling device
- 77
- GlasplattenstapelStack of glass plates
- 8, 98, 9
- TraggabelzinkenSupporting forks
- 1010
- Traggabelcarrying fork
- 1111
- Stützrahmensupport frame
- 12, 1312, 13
- Haltepratzenretaining claws
- 1414
- Saugeinrichtungensuction devices
- 1515
- Regalshelf
- 1616
- BodenträgerShelf support
- 17, 1817, 18
- Einrichtungenfacilities
- 1919
- Abstandsraumdistance space
- 2020
- LichtschrankenanordnungLight barrier arrangement
- 2121
- EntfernungssensorenDistance sensors
- 22, 2322, 23
- Drucksensorenpressure sensors
- 2424
- Berührungssensorentouch sensors
- 2525
- Abstandssensorendistance sensors
- AA
- Achseaxis
- DD
- Doppelpfeildouble arrow
- RR
- RückwärtsfahrtrichtungReverse direction
- VV
- VorwärtsfahrtrichtungForward direction
Claims (8)
mit einer Traggabelzinken (8, 9) umfassenden Traggabel (10) zum Unterfahren zumindest eines Stapels (7),
mit einem Stützrahmen (11) zum Abstützen eines unterfahrenen Stapels (7), und
mit mindestens einer etwa parallel zum Stützrahmen verlagerbaren Haltepratze (12, 13),
dadurch gekennzeichnet,
dass an dem freien Ende zumindest eines Traggabelzinkens (8,9) und an dem freien Ende zumindest einer oberhalb des Traggabelzinkens (8, 9) angeordneten Haltepratze (12, 13) miteinander kommunizierende Einrichtungen (17, 18) zur Erfassung eines zwischen den beiden freien Enden befindlichen Stapels (7) oder eines Abstandsraumes (19) vorgesehen sind.Glass plate transport vehicle (100) for handling substantially upright stacks (7) of glass plates,
with a carrying fork (8, 9) comprising carrying fork (10) for driving under at least one stack (7),
with a support frame (11) for supporting a submerged stack (7), and
with at least one approximately parallel to the support frame displaceable holding claws (12, 13),
characterized,
in that at the free end of at least one supporting fork tine (8, 9) and at the free end of at least one holding claw (12, 13) arranged above the supporting fork tine (8, 9) devices (17, 18) communicating with each other for detecting one between the two free Ends stack (7) or a distance space (19) are provided.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20140197906 EP2873643A1 (en) | 2010-11-19 | 2011-11-17 | Glass sheet transport vehicle |
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202010012945U DE202010012945U1 (en) | 2010-11-19 | 2010-11-19 | Glass plate transport vehicle |
DE202010012942U DE202010012942U1 (en) | 2010-11-19 | 2010-11-19 | Glass plate transport vehicle |
DE202010012941U DE202010012941U1 (en) | 2010-11-19 | 2010-11-19 | Glass plate transport vehicle |
DE202010012943U DE202010012943U1 (en) | 2010-11-19 | 2010-11-19 | Glass plate transport vehicle |
DE202010012944U DE202010012944U1 (en) | 2010-11-19 | 2010-11-19 | Glass plate transport vehicle |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20140197906 Division-Into EP2873643A1 (en) | 2010-11-19 | 2011-11-17 | Glass sheet transport vehicle |
EP20140197906 Division EP2873643A1 (en) | 2010-11-19 | 2011-11-17 | Glass sheet transport vehicle |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2455323A2 true EP2455323A2 (en) | 2012-05-23 |
EP2455323A3 EP2455323A3 (en) | 2012-05-30 |
EP2455323B1 EP2455323B1 (en) | 2015-01-28 |
Family
ID=44993505
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20110189543 Not-in-force EP2455323B1 (en) | 2010-11-19 | 2011-11-17 | Glass sheet transport vehicle |
EP20140197906 Withdrawn EP2873643A1 (en) | 2010-11-19 | 2011-11-17 | Glass sheet transport vehicle |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
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EP20140197906 Withdrawn EP2873643A1 (en) | 2010-11-19 | 2011-11-17 | Glass sheet transport vehicle |
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Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3672470A (en) * | 1969-11-26 | 1972-06-27 | Eaton Yale & Towne | Photoelectric control for load handling device |
JPS59353B2 (en) * | 1980-07-24 | 1984-01-06 | ファナック株式会社 | gripping device |
DE3801133C2 (en) * | 1988-01-16 | 1995-03-23 | Kaup Gmbh & Co Kg | Attachment for a lift loader |
JPH04121995U (en) * | 1991-04-12 | 1992-10-30 | 東洋運搬機株式会社 | glass conveying equipment |
DE9210314U1 (en) * | 1991-12-19 | 1992-10-22 | Ketterer, Walter, 7505 Ettlingen | Device for picking up goods and fork for such a device |
DE19609007A1 (en) * | 1996-03-08 | 1997-09-11 | Wada Foerdertechnik Entwicklun | Feed motion stopping control unit for load pick-up fork of fork-lift truck |
JP2003063793A (en) * | 2001-08-30 | 2003-03-05 | Nippon Yusoki Co Ltd | Contact detecting sensor for fork |
DE20302034U1 (en) * | 2003-02-10 | 2004-06-17 | Hubtex Maschinenbau Gmbh & Co. Kg | Transport vehicle for manipulating plate-form workpieces has covering device by which upward-facing side of workpiece can be selectively covered, at least in part |
US7669486B2 (en) * | 2007-01-30 | 2010-03-02 | Simons Gerald S | Weighing device |
US8078315B2 (en) * | 2008-05-08 | 2011-12-13 | Cascade Corporation | Control system for a load handling clamp |
-
2011
- 2011-11-17 EP EP20110189543 patent/EP2455323B1/en not_active Not-in-force
- 2011-11-17 EP EP20140197906 patent/EP2873643A1/en not_active Withdrawn
Non-Patent Citations (1)
Title |
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Also Published As
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EP2455323B1 (en) | 2015-01-28 |
EP2455323A3 (en) | 2012-05-30 |
EP2873643A1 (en) | 2015-05-20 |
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