EP0519116B1 - Method for covering a stack of articles with a stretchfoil hood and device for carrying out the method - Google Patents
Method for covering a stack of articles with a stretchfoil hood and device for carrying out the method Download PDFInfo
- Publication number
- EP0519116B1 EP0519116B1 EP91115042A EP91115042A EP0519116B1 EP 0519116 B1 EP0519116 B1 EP 0519116B1 EP 91115042 A EP91115042 A EP 91115042A EP 91115042 A EP91115042 A EP 91115042A EP 0519116 B1 EP0519116 B1 EP 0519116B1
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- EP
- European Patent Office
- Prior art keywords
- stack
- hood
- articles
- pallet
- lower edge
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
- B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
- B65B9/13—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the preformed tubular webs being supplied in a flattened state
- B65B9/135—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the preformed tubular webs being supplied in a flattened state for palletised loads
Definitions
- the invention relates to a method for covering stretch film hoods over a stack of goods, in which a hood biased in the circumferential direction is pulled over the stack of goods and its lower edge is knocked under the stack of goods or a pallet carrying the stack of goods and fastened there.
- the invention also relates to an apparatus for performing the method.
- a stretch film hood is gathered in the longitudinal direction like an accordion and placed on rod-shaped holding elements of a tenter frame.
- the holding elements are then moved apart with the aid of a tensioning drive, as a result of which the stretch film hood is pretensioned in the circumferential direction.
- the tensioning frame is moved downwards along the stack of goods, the gathered stretch film hood being pulled off the holding elements and resting against the outside of the stack of goods.
- Brakes that engage the hood sections between the holding elements control the tension of the Stretch film hood (DE-GM 90 01 319).
- the object of the invention is to pull a stretch film hood wrinkle-free and so over a stack of goods that the hood can also absorb diagonal forces.
- This object is achieved in that after covering the lower edge of the hood is grasped and re-tensioned in the longitudinal direction of the hood and then turned over.
- the lower edge in the central region of at least two opposite sides of the stack of goods is to be gripped and re-tensioned.
- the easiest way of tightening is to hold the lower edge of the hood stationary and to lift the stack of goods during tightening.
- the stroke of the stack of goods can be dimensioned sufficiently large to compensate for all folds and the set the desired preload.
- Brakes that work together with the stenter frame can be dispensed with.
- the stack of goods is covered by a stretch film hood which is stretched uniformly on all sides and in all directions, so that it can absorb forces in all directions, even in diagonal directions.
- the method according to the invention can advantageously be carried out with a device for covering stretch film hoods over a stack of goods, with a clamping frame which can move along the stack of goods and which has a clamping drive which can be adjusted relative to one another and which engage in the opened hood, with a vertically adjustable carrier for the Stack of goods and with a device arranged under the stack of goods or its support for fastening the lower edge of the hood to the stack of goods, and which is characterized in that devices for retensioning the hood are arranged between the holding elements of at least two opposite sides of the stack of goods.
- the devices for re-tensioning should be arranged in the central area between adjacent holding elements.
- the devices for retensioning have pliers, the opening gap of which is directed essentially vertically for gripping the lower edge of the hood guided by the holding elements.
- the lower edge of the hood is then inserted directly into the opened tongs when the tensioning frame holding elements are pulled over and is held by the closed tongs when the tensioning frame holding elements have been removed.
- the stack of goods is then raised to retighten the hood.
- the pliers are moved under the stack of goods, so that the lower edge of the retensioned hood lies under the stack of goods or under the pallet and can be fastened there.
- each device for retensioning has two pliers arranged at a distance from one another and an adhesive spraying device is arranged under the stack of material, which sprays the lower edge of the hood with adhesive in the area between the pliers. If the lower edge is then folded over under the stack of goods or under the pallet, it is immediately liable.
- the liability can be further improved if a pressure roller which can be displaced with the tongs and is pressed against the underside of the stack of goods or the pallet is provided between the tongs of each device.
- the pressure roller can be resiliently mounted; in a preferred embodiment, the pressure roller is assigned a pressure cylinder.
- a further proposal of the invention is that groups of mutually coaxial heating disks are arranged in the region of at least two pallet sides, the axes of which extend parallel to the sides of the pallet, and that each group of Heating disks is assigned a drive with which the heating disks are guided in a rolling motion in the longitudinal direction of the film hood.
- the lower edge of the film hood is only attached to the pallet in strips.
- fastening strips are formed between the film material and the pallet material, which extend in the longitudinal direction of the film hood. With this orientation of the fastening strips, the forces transmitted by the film thereon are optimally absorbed, so that even thin areas of the film material do not have a negative effect.
- the heating disks are preferably pressed resiliently against the pallet. This can be achieved in particular in that the heating disks are mounted on associated pivot levers, which in turn are articulated on a slide movable by the drive, and in that the pivot levers are supported on the slide by springs. Accordingly, the heating disks can follow bumps on the assigned surface of the pallet during their rolling movement and produce a continuous fastening strip between the film material and the pallet material.
- a practical embodiment is characterized in that return springs are arranged between the heating disks and their pivoting levers, which return the heating disks to their retirement when the pressure on the assigned pallet surface subsides.
- the heating discs move against the action of the return springs and the return movement of the heating discs is supported by the return springs.
- the heating disks can preferably be heated using heating tapes which are laid on the circumference of the heating disks. This enables simple construction of the heating disks and simple electrical connections.
- the heating disks can attack the underside of the pallet. If the palletized stack of goods is transported by a roller conveyor, it is expedient if the heating disks are arranged between the transport rollers of the conveyor.
- the device for covering includes a tensioning frame, of which only holding elements 6 are shown, which in the embodiment shown consist of fingers pointing downwards.
- the holding elements 6 are located in the area of the four floor plan corners of the stack of goods 1.
- the opened stretch film hood is gathered in the longitudinal direction like an accordion and placed on the holding elements 6.
- the holding elements 6 are then moved apart with the aid of a tensioning drive, as a result of which the stretch film hood 5 is pretensioned in the circumferential direction.
- the tensioning frame with the holding elements 6 is moved downwards along the stack of goods 1, the gathered stretch film hood 5 being pulled off the holding elements 6 and resting on the outer sides of the stack of goods 1.
- the stack of goods 1 with the pallet 2 is lifted off the roller conveyor 3 of the conveyor 4 by means of a lifting device 7. 1 shows this state.
- Devices 8 for tensioning the stretch film hood 5 are arranged on both sides of the conveyor 4 and possibly also in the region of the end face of the stack of goods 1. Only one device 8 for retensioning is shown.
- Each device 8 for retensioning consists of one Carriage 9, which can be moved horizontally on a bracket 10 of the conveyor 4 with the aid of a lifting cylinder 11.
- two pliers 12 are arranged at a mutual distance such that their opening gap extends substantially vertically and the lower edge 13 of the stretch film hood 5 is transferred from the holding elements 6 into the opening gap of the pliers 12 or falls into it when the holding elements 6 have reached their lowest position, in which the lower edge 13 of the stretch film hood 5 detaches from the holding elements 6.
- the pliers 12 are then closed with the aid of associated drives 14.
- the tenter with the holding elements 6 moves upwards again (Fig. 2).
- an adhesive spray device 15 which sprays the inside of the lower edge 13 of the stretch film hood 5 in the area between the two tongs 12 and optionally also at other points with an adhesive. Then the lower edge 13 of the stretched stretch film hood 5 is knocked under the pallet 2, in which the carriage 9 is moved with the pliers 12 by actuating the lifting cylinder 11 under the raised, palletized stack of goods 1.
- a pressure roller 16 is arranged between the two pliers 12, which in the embodiment shown on an arm 17 pivotally mounted, double-armed lever is mounted, on the other arm 18 engages a lifting cylinder 19 as a drive.
- the lifting cylinder 19 is also actuated, so that at least the portion of the lower edge 13 of the stretch film hood 5 provided with adhesive is pressed against the underside of the pallet 2 and fastened thereon (FIG. 3).
- the pliers 12 are opened as soon as the pressure roller 16 has reached the necessary pressure force.
- the tensioning frame with the holding elements 6 has meanwhile moved upward and is available for receiving a new stretch film hood 5.
- the device shown in FIG. 5 belongs to a device for covering stretch film hoods 101 over a stack of goods 103 arranged on a pallet 102, as described in principle in DE-GM 90 03 319.
- the palletized stack of goods 102, 103 is transported on a roller conveyor, on the transport rollers 104 of which the pallet 102 is supported with its underside.
- a lifting device 105 is provided, with which the stacked goods stack 102, 103 is raised so that the stretch film hood 101 can be pulled over it and its lower edge 106 can be knocked under the underside of the pallet 102.
- Movable clamping jaws 107 hold assigned sections of the stretch film hood 101 until the lower edge 106 has been folded under the pallet 102.
- the device described below serves to secure the lower edge 106 of the stretch film hood 101.
- This device includes, in the area of each long side of the pallet 102, heating disks 108 arranged coaxially to one another, which in the embodiment shown (see in particular FIGS. 6, 7) each have a circular sector-shaped plan and which are covered on the circumference with heating tapes 109, to which electrical connections 110 are assigned are.
- the heating disks 108 are arranged between the transport rollers 104 of the roller conveyor and are rotatably mounted on associated pivot levers 111, which in turn are articulated at 112 to a carriage 113.
- the carriage 113 is displaceable on a support 114 fixed to the frame parallel to the axis of the transport rollers 104 or to the underside of a pallet, with the aid of a drive 115, which in the embodiment shown is a lifting cylinder.
- the pivot levers 111 are supported on the slide 113 by means of compression springs 116.
- a return spring 117 extends between each heating disc 108 and the associated pivot lever 111.
- the heating disks 108 or their heating tapes 109 have a width of 5 to 15 mm.
- the device described so far works as follows: If the stretch film hood 101 has been covered over the palletized stack of goods 102, 103 raised with the lifting device 105 and its lower edge 106 has been folded over under the pallet, the palletised stack of goods 102, 103 is lowered until it rests on the transport rollers 104. Then the drives 115 of the carriages 113 are actuated so that the carriages 113 move in the direction of the arrow 118 (FIG. 6). When the heating disks 108 with their heating tapes 109 reach the area of the underside of the pallet 102, they roll on the underside of the pallet 102 or on the edge 106 of the stretch film hood 101 located there.
- the film material is heated and softened, so that it forms a connection with the pallet material.
- the film material is pressed into the rough surface of the wood, creating a toothing between the wood and the film material.
- fastening strips 119 are formed which extend in the longitudinal direction of the stretch film hood 101.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Basic Packing Technique (AREA)
- Closing Of Containers (AREA)
- Package Closures (AREA)
- Pile Receivers (AREA)
- Control And Other Processes For Unpacking Of Materials (AREA)
Abstract
Description
Die Erfindung betrifft eine Verfahren zum Überziehen von Stretchfolienhauben über einen Gutstapel, bei dem eine in Umfangsrichtung vorgespannte Haube über den Gutstapel gezogen wird und ihr unterer Rand unter den Gutstapel oder eine den Gutstapel tragende Palette geschlagen sowie dort befestigt wird. Die Erfindung betrifft auch eine Vorrichtung zur Durchführung des Verfahrens.The invention relates to a method for covering stretch film hoods over a stack of goods, in which a hood biased in the circumferential direction is pulled over the stack of goods and its lower edge is knocked under the stack of goods or a pallet carrying the stack of goods and fastened there. The invention also relates to an apparatus for performing the method.
Bei einem gattungsgemäßen Verfahren wird eine Stretchfolienhaube in Längsrichtung zieharmonikaartig gerafft und auf stabförmigen Halteelementen eines Spannrahmens abgelegt. Dann werden die Halteelemente mit Hilfe eines Spanntriebes auseinander bewegt, wodurch die Stretchfolienhaube in Umfangsrichtung vorgespannt wird. In diesem Zustand wird der Spannrahmen längs dem Gutstapel abwärts bewegt, wobei die geraffte Stretchfolienhaube von den Halteelementen abgezogen wird und sich an die Außenseiten des Gutstapels anlegt. Bremsen, die an den Haubenabschnitten zwischen den Halteelementen angreifen, kontrollieren die Spannung der Stretchfolienhaube (DE-GM 90 01 319). Obgleich mit den Bremsen eine weitgehende Steuerung der Spannungsverteilung in der Stretchfolienhaube möglich ist, wird häufig beobachtet, daß die Haube insbesondere im mittleren Bereich der Seiten des Gutstapels Falten wirft, also nicht in allen Richtungen gleichmäßig vorgespannt ist. Eine faltige Haube kann aber nicht in allen Richtungen gleichmäßig Kräfte übertragen, insbesondere kann sie keine diagonalen Kräfte übertragen.In a generic method, a stretch film hood is gathered in the longitudinal direction like an accordion and placed on rod-shaped holding elements of a tenter frame. The holding elements are then moved apart with the aid of a tensioning drive, as a result of which the stretch film hood is pretensioned in the circumferential direction. In this state, the tensioning frame is moved downwards along the stack of goods, the gathered stretch film hood being pulled off the holding elements and resting against the outside of the stack of goods. Brakes that engage the hood sections between the holding elements control the tension of the Stretch film hood (DE-GM 90 01 319). Although extensive control of the tension distribution in the stretch film hood is possible with the brakes, it is frequently observed that the hood folds, in particular in the central region of the sides of the stack of goods, that is to say is not preloaded uniformly in all directions. However, a wrinkled hood cannot transmit forces evenly in all directions, in particular it cannot transmit diagonal forces.
Aufgabe der Erfindung ist es, eine Stretchfolienhaube faltenfrei und so über einen Gutstapel zu ziehen, daß die Haube auch diagonale Kräfte aufnehmen kann.The object of the invention is to pull a stretch film hood wrinkle-free and so over a stack of goods that the hood can also absorb diagonal forces.
Diese Aufgabe wird dadurch gelöst, daß nach dem Überziehen der untere Rand der Haube erfaßt und in Haubenlängsrichtung nachgespannt sowie dann umgeschlagen wird. Insbesondere soll der untere Rand im Mittenbereich wenigstens zweier einander gegenüberliegenden Seiten des Gutstaples erfaßt und nachgespannt werden. Das Nachspannen läßt sich am einfachsten dadurch erreichen, daß beim Nachspannen der untere Rand der Haube ortsfest gehalten und der Gutstapel angehoben wird. Durch das Nachspannen in Haubenlängsrichtung werden alle Falten der Haube, die beim Überziehen entstanden sind, zuverlässig beseitigt und gleichzeitig wird die Haube auch in Haubenlängsrichtung in der gewünschten Weise vorgespannt, bevor ihr unterer Rand unter den Gutstapel oder die Palette umgeschlagen und dort befestigt wird. Wird, wie angegeben, beim Nachspannen der untere Rand der Haube ortsfest gehalten und der Gutstapel angehoben, dann kann der Hubweg des Gutstapels ausreichend groß bemessen werden, um alle Falten auszugleichen und die gewünschte Vorspannung einzustellen. Auf Bremsen, die mit dem Spannrahmen zusammen arbeiten, kann verzichtet werden. Im Ergebnis ist der Gutstapel von einer Stretchfolienhaube überzogen, die allseitig und in allen Richtungen gleichmäßig gespannt ist, so daß sie in allen Richtungen, auch in diagonalen Richtungen, Kräfte aufnehmen kann.This object is achieved in that after covering the lower edge of the hood is grasped and re-tensioned in the longitudinal direction of the hood and then turned over. In particular, the lower edge in the central region of at least two opposite sides of the stack of goods is to be gripped and re-tensioned. The easiest way of tightening is to hold the lower edge of the hood stationary and to lift the stack of goods during tightening. By re-tensioning in the longitudinal direction of the hood, all folds of the hood that have arisen during pulling over are reliably eliminated and, at the same time, the hood is also pretensioned in the longitudinal direction of the hood in the desired manner before its lower edge is folded over under the stack of goods or the pallet and fastened there. If, as stated, the lower edge of the hood is held stationary and the stack of goods is lifted, the stroke of the stack of goods can be dimensioned sufficiently large to compensate for all folds and the set the desired preload. Brakes that work together with the stenter frame can be dispensed with. As a result, the stack of goods is covered by a stretch film hood which is stretched uniformly on all sides and in all directions, so that it can absorb forces in all directions, even in diagonal directions.
Das erfindungsgemäße Verfahren läßt sich vorteilhaft durchführen mit einer Vorrichtung zum Überziehen von Stretchfolienhauben über einen Gutstapel, mit einem längs dem Gutstapel beweglichen Spannrahmen, der mit einem Spanntrieb relativ zueinander verstellbare Halteelemente aufweist, die in die geöffnete Haube eingreifen, mit einem vertikal verstellbaren Träger für den Gutstapel und mit einer unter dem Gutstapel oder seinem Träger angeordneten Einrichtung zum Befestigen des unteren Randes der Haube am Gutstapel, und die dadurch gekennzeichnet ist, daß zwischen den Haltelementen wenigstens zweier einander gegenüberliegender Seiten des Gutstapels Einrichtungen zum Nachspannen der Haube angeordnet sind. Insbesondere sollen die Einrichtungen zum Nachspannen im Mittenbereich zwischen benachbarten Halteelementen angeordnet sein.The method according to the invention can advantageously be carried out with a device for covering stretch film hoods over a stack of goods, with a clamping frame which can move along the stack of goods and which has a clamping drive which can be adjusted relative to one another and which engage in the opened hood, with a vertically adjustable carrier for the Stack of goods and with a device arranged under the stack of goods or its support for fastening the lower edge of the hood to the stack of goods, and which is characterized in that devices for retensioning the hood are arranged between the holding elements of at least two opposite sides of the stack of goods. In particular, the devices for re-tensioning should be arranged in the central area between adjacent holding elements.
Nach bevorzugter Ausführung der Erfindung weisen die Einrichtungen zum Nachspannen Zangen auf, deren Öffnungsspalt im wesentlichen vertikal zum Erfassen des von den Halteelementen geführten unteren Randes der Haube gerichtet sind. Dann wird nämlich der untere Rand der Haube beim Überziehen von den Halteelementen des Spannrahmens unmittelbar in die geöffneten Zangen eingeführt und wird von den geschlossenen Zangen gehalten, wenn die Halteelemente des Spannrahmens entfernt worden sind.According to a preferred embodiment of the invention, the devices for retensioning have pliers, the opening gap of which is directed essentially vertically for gripping the lower edge of the hood guided by the holding elements. The lower edge of the hood is then inserted directly into the opened tongs when the tensioning frame holding elements are pulled over and is held by the closed tongs when the tensioning frame holding elements have been removed.
Zum Nachspannen der Haube wird dann der Gutstapel angehoben. Die Zangen werden nach dem Abheben des mit der Haube überzogenen Gutstapels unter den Gutstapel verschoben, so daß der untere Rand der nachgespannten Haube sich unter den Gutstapel oder unter die Palette legt und dort befestigt werden kann.The stack of goods is then raised to retighten the hood. After the stack of goods covered with the hood has been lifted off, the pliers are moved under the stack of goods, so that the lower edge of the retensioned hood lies under the stack of goods or under the pallet and can be fastened there.
Zum Zwecke der Befestigung des unteren Randes ist es vorteilhaft, wenn jede Einrichtung zum Nachspannen zwei mit gegenseitigem Abstand angeordnete Zangen aufweist und unter dem Gutstapel eine Klebstoffsprüheinrichtung angeordnet ist, die den unteren Rand der Haube im Bereich zwischen den Zangen mit Klebstoff besprüht. Wird der untere Rand dann unter den Gutstapel oder unter die Palette umgeschlagen, haftet er dort unmittelbar. Die Haftung kann noch verbessert werden, wenn zwischen den Zangen jeder Einrichtung eine mit den Zangen verschiebbare, gegen die Unterseite des Gutstapels bzw. der Palette drückbare Andrückrolle vorgesehen ist. Die Andrückrolle kann federnd gelagert sein, nach bevorzugter Ausführung ist der Andrückrolle ein Andrückzylinder zugeordnet.For the purpose of fastening the lower edge, it is advantageous if each device for retensioning has two pliers arranged at a distance from one another and an adhesive spraying device is arranged under the stack of material, which sprays the lower edge of the hood with adhesive in the area between the pliers. If the lower edge is then folded over under the stack of goods or under the pallet, it is immediately liable. The liability can be further improved if a pressure roller which can be displaced with the tongs and is pressed against the underside of the stack of goods or the pallet is provided between the tongs of each device. The pressure roller can be resiliently mounted; in a preferred embodiment, the pressure roller is assigned a pressure cylinder.
Zum Sichern des unteren Randes von über palletierte Gutstapel gezogene Stretchfolienhauben ist bereits vorgeschlagen worden (DE-GM 90 01 319), den unteren Rand der Haube mittels einer Heizwalze gegen die Palette zu drücken, so daß unter der Einwirkung von Druck und Wärme das Folienmaterial in plastischem Zustand überführt wird und die Folie sich mit dem Palettenmaterial verbindet. Insbesondere bei Paletten aus Holz wird die Folie in die rauhe Oberfläche des Holzes eingedrückt, wobei eine Verzahnung zwischen Holz und Folienmaterial entsteht. Damit kann der untere Rand der Haube sowohl an der Seite der Palette als auch an der Unterseite der Palette festgelegt werden. Die entsprechenden Flächen der Palette besitzen aber nicht nur eine rauhe, sondern im allgemeinen auch eine unregelmäßige oder gewellte Oberfläche, so daß mit einer über die Fläche geführten Heizwalze der gewünschte Erfolg nur unzureichend oder nicht erreicht wird.To secure the lower edge of stretch film hoods drawn over palletized material stacks, it has already been proposed (DE-GM 90 01 319) to press the lower edge of the hood against the pallet by means of a heating roller, so that the film material in under the action of pressure and heat plastic state is transferred and the film connects to the pallet material. In the case of wooden pallets in particular, the film is pressed into the rough surface of the wood, with a toothing between wood and foil material. This allows the lower edge of the hood to be fixed on the side of the pallet as well as on the bottom of the pallet. The corresponding surfaces of the pallet not only have a rough surface, but generally also an irregular or corrugated surface, so that the desired success is achieved inadequately or not with a heating roller guided over the surface.
Damit der untere Rand der Folienhaube zuverlässig gesichert werden kann, geht ein weiterer Vorschlag der Erfindung dahin, daß im Bereich von wenigstens zwei Palettenseiten Gruppen von zueinander koaxialen Heizscheiben angeordnet sind, deren Achsen sich parallel zu den Seiten der Palette erstrecken, und daß jeder Gruppe von Heizscheiben ein Antrieb zugeordnet ist, mit dem die Heizscheiben in einer Abwälzbewegung in Längsrichtung der Folienhaube geführt sind. Damit wird der untere Rand der Folienhaube nur streifenweise an der Palette befestigt. Je nach Breite der Heizscheiben, die zwischen 5 und 15 mm betragen kann, entstehen Befestigungsstreifen zwischen Folienmaterial und Palettenmaterial, die sich in Längsrichtung der Folienhaube erstrecken. Bei dieser Orientierung der Befestigungsstreifen werden die von der Folie darauf übertragenen Kräfte optimal aufgenommen, so daß sich auch Dünnstellen des Folienmaterials nicht negativ auswirken.So that the lower edge of the film hood can be reliably secured, a further proposal of the invention is that groups of mutually coaxial heating disks are arranged in the region of at least two pallet sides, the axes of which extend parallel to the sides of the pallet, and that each group of Heating disks is assigned a drive with which the heating disks are guided in a rolling motion in the longitudinal direction of the film hood. The lower edge of the film hood is only attached to the pallet in strips. Depending on the width of the heating discs, which can be between 5 and 15 mm, fastening strips are formed between the film material and the pallet material, which extend in the longitudinal direction of the film hood. With this orientation of the fastening strips, the forces transmitted by the film thereon are optimally absorbed, so that even thin areas of the film material do not have a negative effect.
Vorzugsweise sind die Heizscheiben federnd gegen die Palette gedrückt. Das kann insbesondere dadurch erreicht werden, daß die Heizscheiben an zugeordneten Schwenkhebeln gelagert sind, die ihrerseits an einen vom Antrieb bewegbaren Schlitten angelenkt sind und daß die Schwenkhebel über Federn am Schlitten abgestützt sind. Dementsprechend können die Heizscheiben bei ihrer Abwälzbewegung Unebenheiten auf der zugeordneten Fläche der Palette folgen und einen durchgehenden Befestigungsstreifen zwischen Folienmaterial und Palettenmaterial erzeugen.The heating disks are preferably pressed resiliently against the pallet. This can be achieved in particular in that the heating disks are mounted on associated pivot levers, which in turn are articulated on a slide movable by the drive, and in that the pivot levers are supported on the slide by springs. Accordingly, the heating disks can follow bumps on the assigned surface of the pallet during their rolling movement and produce a continuous fastening strip between the film material and the pallet material.
Eine praktische Ausführung ist dadurch gekennzeichnet, daß zwischen den Heizscheiben und ihren Schwenkhebeln Rückholfedern angeordnet sind, die die Heizscheiben jeweils in ihren Ruhestand zurückführen, wenn der Andruck an die zugeordnete Palettenfläche nachläßt. Insbesondere erfolgt die Hinbewegung der Heizscheiben gegen die Wirkung der Rückholfedern und wird die Rückholbewegung der Heizscheiben durch die Rückholfedern unterstützt.A practical embodiment is characterized in that return springs are arranged between the heating disks and their pivoting levers, which return the heating disks to their retirement when the pressure on the assigned pallet surface subsides. In particular, the heating discs move against the action of the return springs and the return movement of the heating discs is supported by the return springs.
Die Beheizung der Heizscheiben kann vorzugsweise mit Heizbändern erfolgen, die umfangsseitig auf den den Heizscheiben verlegt sind. Das ermöglicht eine einfache Konstruktion der Heizscheiben und einfache elektrische Anschlüsse.The heating disks can preferably be heated using heating tapes which are laid on the circumference of the heating disks. This enables simple construction of the heating disks and simple electrical connections.
Wenn, wie üblich, der untere Rand einer über den Gutstapel und die Palette gezogenen Folienhaube unter die Palette umgeschlagen wird, können die Heizscheiben an die Unterseite der Palette angreifen. Wird der palettierte Gutstapel mit einem Rollenförderer transportiert, ist es zweckmäßig, wenn die Heizscheiben zwischen den Transportrollen des Förderers angeordnet sind.If, as usual, the lower edge of a film hood pulled over the stack of goods and the pallet is folded under the pallet, the heating disks can attack the underside of the pallet. If the palletized stack of goods is transported by a roller conveyor, it is expedient if the heating disks are arranged between the transport rollers of the conveyor.
Wird der untere Rand, der über den Gutstapel und die Palette gezogenen Folienhaube nicht unter die Palette umgeschlagen, sondern endet an den Seiten der Palette, dann können die Heizscheiben auch an den Seiten der Palette angreifen.If the lower edge of the film hood pulled over the stack of goods and the pallet is not folded under the pallet, but ends on the sides of the pallet, then can also engage the heating discs on the sides of the pallet.
Im folgenden wird ein in der Zeichnung dargestelltes Ausführungsbeispiel der Erfindung erläutert; es zeigen:
- Fig. 1
- schematisch eine Ansicht einer Vorrichtung zum Überziehen von Stretchfolienhauben über einen Gutstapel,
- Fig. 2
- den Gegenstand nach Fig. 1 in einer anderen Funktionsstellung,
- Fig. 3
- den Gegenstand nach Fig. 1 in einer weiteren Funktionsstellung,
- Fig. 4
- eine andere Ansicht des Gegenstandes nach Fig. 2,
- Fig. 5
- schematisch die Ansicht einer Vorrichtung zum Sichern des unteren Randes von über palettierte Gutstape gezogene Folienhauben,
- Fig. 6
- teilweise und im vergrößerten Maßstab ein Detail des Gegenstandes der Fig. 1,
- Fig. 7
- den Gegenstand nach Fig. 6 in anderer Funktionsstellung,
- Fig. 8
- schematisch und in perspektivischer Darstellung die Ansicht eines palettierten Gutstapels mit darüber gezogener Folienhaube, deren unterer Rand gesichert ist
- Fig. 1
- schematically a view of a device for covering stretch film hoods over a stack of goods,
- Fig. 2
- 1 in a different functional position,
- Fig. 3
- 1 in a further functional position,
- Fig. 4
- another view of the object of FIG. 2,
- Fig. 5
- schematically the view of a device for securing the lower edge of film hoods pulled over palletized Gutstape,
- Fig. 6
- partially and on an enlarged scale a detail of the subject of FIG. 1,
- Fig. 7
- 6 in a different functional position,
- Fig. 8
- schematically and in perspective the view of a palletized stack of goods with a film hood pulled over it, the lower edge of which is secured
Zu der Vorrichtung zum Überziehen gehört ein Spannrahmen, von dem lediglich Halteelemente 6 wiedergegeben sind, die bei der dargestellten Ausführung aus nach unten gerichteten Fingern bestehen. Die Halteelemente 6 befinden sich im Bereich der vier Grundrißecken des Gutstapels 1. Die geöffnete Stretchfolienhaube wird in Längsrichtung zieharmonikaartig gerafft und auf den Halteelementen 6 abgelegt. Dann werden die Halteelemente 6 mit Hilfe eines Spanntriebes auseinander bewegt, wodurch die Stretchfolienhaube 5 in Umfangsrichtung vorgespannt wird. In diesem Zustand wird der Spannrahmen mit den Halteelementen 6 längs den Gutstapel 1 abwärts bewegt, wobei die geraffte Stretchfolienhaube 5 von den Halteelementen 6 abgezogen wird und sich an die Außenseiten des Gutstapels 1 anlegt. Der Gutstapel 1 mit der Palette 2 ist dabei mittels einer Hubeinrichtung 7 von der Rollenbahn 3 des Förderers 4 abgehoben. Diesen Zustand zeigt Fig. 1.The device for covering includes a tensioning frame, of which only holding
Auf beiden Seiten des Förderers 4 und gegebenenfalls auch im Bereich der Stirnseite des Gutstapels 1 sind Einrichtungen 8 zum Nachspannen der Stretchfolienhaube 5 angeordnet. Dargestellt ist nur eine Einrichtung 8 zum Nachspannen.
Jede Einrichtung 8 zum Nachspannen besteht aus einem Schlitten 9, der auf einer Konsole 10 des Förderers 4 mit Hilfe eines Hubzylinders 11 horizontal verfahrbar ist. Auf dem Schlitten 9 sind mit gegenseitigem Abstand zwei Zangen 12 derart angeordnet, daß ihr Öffnungsspalt sich im wesentlichen vertikal erstreckt und der untere Rand 13 der Stretchfolienhaube 5 von den Halteelementen 6 in den Öffnungsspalt der Zangen 12 überführt wird oder in diesen einfällt, wenn die Halteelemente 6 ihre unterste Position erreicht haben, bei der der untere Rand 13 der Stretchfolienhaube 5 sich von den Halteelementen 6 löst. Die Zangen 12 werden dann mit Hilfe zugeordneter Antriebe 14 geschlossen. Der Spannrahmen mit den Halteelementen 6 bewegt sich wieder aufwärts (Fig. 2).Each
Nunmehr wird der palletierte Gutstapel 1 mit Hilfe der Hubeinrichtung 7 nach oben bewegt. Die Stretchfolienhaube 5 wird dabei nachgespannt, weil die Zangen 12 der Aufwärtsbewegung nicht folgen.Now the palletized stack of
Unter dem palettierten Gutstapel 1 und bei der dargestellten Ausführung mit den Tragelementen der Hubeinrichtung 7 verbunden ist eine Klebstoffsprüheinrichtung 15, die die Innenseite des unteren Randes 13 der Stretchfolienhaube 5 im Bereich zwischen den beiden Zangen 12 und gegebenenfalls auch an anderen Stellen mit einem Klebstoff besprüht. Danach wird der untere Rand 13 der nachgespannten Stretchfolienhaube 5 unter die Palette 2 geschlagen, in dem der Schlitten 9 mit den Zangen 12 durch Betätigen des Hubzylinders 11 unter den angehobenen, palettierten Gutstapel 1 bewegt wird. Auf dem Schlitten 9 ist zwischen den beiden Zangen 12 eine Andrückrolle 16 angeordnet, die bei der dargestellten Ausführung an einen Arm 17 eines schwenkbar gelagerten, doppelarmigen Hebels gelagert ist, an dessen anderer Arm 18 ein Hubzylinder 19 als Antrieb angreift. Beim Verschieben des Schlittens 9 wird auch der Hubzylinder 19 betätigt, so daß zumindest der mit Klebstoff versehene Abschnitt des unteren Randes 13 der Stretchfolienhaube 5 gegen die Unterseite der Palette 2 gedrückt und daran befestigt wird (Fig. 3). Die Zangen 12 werden geöffnet, sobald die Andrückrolle 16 die notwendige Andrückkraft erreicht hat. Der Spannrahmen mit den Halteelementen 6 hat sich inzwischen weiter nach oben bewegt und steht zur Aufnahme einer neuen Stretchfolienhaube 5 zur Verfügung.Under the palletized stack of
Wenn der untere Rand 13 der Stretchfolienhaube 5 unter der Palette 2 befestigt ist, wird der Schlitten 9 mit den darauf angeordneten Aggregaten wieder in die in Fig. 1 dargestellte Ruheposition zurückbewegt. Der palettierte Gutstapel 1 wird auf die Rollenbahn 3 des Förderers 4 abgesenkt und abtransportiert, wobei die Klebeverbindung zwischen dem unteren Rand 13 der Stretchfolienhaube 5 und der Unterseite der Palette durch Kontakt mit der Rollenbahn 3 noch verbessert wird.When the
Die in Fig. 5 dargestellte Vorrichtung gehört zu einer Vorrichtung zum Überziehen von Stretchfolienhauben 101 über einen auf einer Palette 102 angeordneten Gutstapel 103, wie sie im Prinzip im DE-GM 90 03 319 beschrieben ist. Der palettierte Gutstapel 102, 103 wird auf einem Rollenförderer transportiert, auf dessen Transportrollen 104 die Palette 102 sich mit ihrer Unterseite abstützt. Im Bereich des Rollenförderers ist eine Hubeinrichtung 105 vorgesehen, mit der der palettierte Gutstapel 102, 103 angehoben wird, damit die Stretchfolienhaube 101 darübergezogen werden kann und ihr unterer Rand 106 unter die Unterseite der Palette 102 geschlagen werden kann. Die dafür benötigten Einrichtungen sind nicht dargestellt. Bewegliche Klemmbacken 107 halten zugeordnete Abschnitte der Stretchfolienhaube 101 solange, bis der untere Rand 106 unter die Palette 102 umgeschlagen worden ist.The device shown in FIG. 5 belongs to a device for covering
Zur Sicherung des unteren Randes 106 der Stretchfolienhaube 101 dient die im folgenden beschriebene Vorrichtung. Zu dieser Vorrichtung gehören im Bereich jeder Längsseite der Palette 102 koaxial zueinander angeordnete Heizscheiben 108, die bei der dargestellten Ausführung (siehe insbesondere Fig. 6, 7) jeweils einen kreissektorförmigen Grundriß aufweisen und die umfangsseitig mit Heizbändern 109 belegt sind, denen elektrische Anschlüsse 110 zugeordnet sind.The device described below serves to secure the
Die Heizscheiben 108 sind zwischen den Transportrollen 104 des Rollenförderers angeordnet und drehbar an zugeordneten Schwenkhebeln 111 gelagert, die ihrerseits bei 112 an einen Schlitten 113 angelenkt sind. Der Schlitten 113 ist auf einem gestellfesten Träger 114 parallel zu der Achse der Transportrollen 104 bzw. zur Unterseite einer Palette verschiebbar, und zwar mit Hilfe eines Antriebes 115, der bei der dargestellten Ausführung ein Hubzylinder ist.The
Die Schwenkhebel 111 sind über Druckfedern 116 auf dem Schlitten 113 abgestützt. Außerdem erstreckt sich zwischen jeder Heizscheibe 108 und dem zugeordneten Schwenkhebel 111 eine Rückholfeder 117.The pivot levers 111 are supported on the
Die Heizscheiben 108 bzw. ihre Heizbänder 109 besitzen eine Breite von 5 bis 15 mm.The
Die insoweit beschriebene Vorrichtung arbeitet wie folgt: Wenn die Stretchfolienhaube 101 über den mit der Hubeinrichtung 105 angehobenen, palettierten Gutstapel 102, 103 überzogen worden ist und ihr unterer Rand 106 unter die Palette umgeschlagen worden ist, wird der palettierte Gutstapel 102, 103, abgesenkt bis er auf den Transportrollen 104 aufliegt. Dann werden die Antriebe 115 der Schlitten 113 betätigt, so daß sich die Schlitten 113 in Richtung des Pfeils 118 (Fig. 6) bewegen. Wenn die Heizscheiben 108 mit ihren Heizbändern 109 in den Bereich der Unterseite der Palette 102 gelangen, wälzen sie sich auf der Unterseite der Palette 102 bzw. auf dem dort liegenden Rand 106 der Stretchfolienhaube 101 ab. Im Bereich der Heizscheiben 108 bzw. der Heizbänder 109 wird das Folienmaterial erwärmt und erweicht, so daß es mit dem Palettenmaterial eine Verbindung eingeht. Bei Paletten aus Holz wird das Folienmaterial in die rauhe Oberfläche des Holzes eingedrückt, wobei eine Verzahnung zwischen Holz und Folienmaterial entsteht. Letztendlich entstehen Befestigungsstreifen 119 (Fig. 8), die sich in Längsrichtung der Stretchfolienhaube 101 erstrecken.The device described so far works as follows: If the
Bei Umsteuerung der Antriebe 115 der Schlitten 113 werden die Schlitten 113 wieder zurückgezogen, wobei sich die Heizscheiben 108 in Gegenrichtung abwälzen. Sobald die Heizscheiben 108 von der Unterseite der Palette 102 freikommen, werden sie von den Rückholfedern 117 in die Fig. 6 wiedergegebene Ruhestellung zurückgeführt.When the
Claims (18)
- Method of drawing stretch film hoods over a stack of articles, wherein a hood (5), which is pretensioned in the circumferential direction, is drawn over the stack of articles (1), and its lower edge (13) is driven beneath the stack of articles (1), or beneath a pallet (2) carrying the stack of articles (1), and secured there, characterised in that, after the drawing process, the lower edge (13) of the hood (5) is gripped, subsequently tensioned in the longitudinal direction of the hood and then wrapped round.
- Method according to claim 1, characterised in that the lower edge (13) is gripped in the central region of at least two oppositely situated sides of the stack of articles (1) and subsequently tensioned.
- Method according to claim 1 or 2, characterised in that, during the subsequent tensioning process, the lower edge (13) of the hood (5) is retained in a stationary manner, and the stack of articles (1) is raised.
- Apparatus for accomplishing the method according to one of claims 1 to 3, including a tensioning frame, which is displaceable longitudinally of the stack of articles (1) and has retaining members (6), which are displaceable relative to one another by a tensioning drive and engage in the opened hood (5), including a vertically displaceable carrier (7) for the stack of articles (1), and a means, disposed beneath the stack of articles (1) or its carrrier (7), for securing the lower edge (13) of the hood (5) on the stack of articles (1), characterised in that means (8) for subsequently tensioning the hood (5) are disposed between the retaining members (6) of at least two oppositely situated sides of the stack of articles (1).
- Apparatus according to claim 4, characterised in that the means (8) for the subsequent tensioning process are disposed in the central region between adjacent retaining members (6).
- Apparatus according to claim 4 or 5, characterised in that the means (8) for the subsequent tensioning process include gripping members (12), the opening gap of which is orientated substantially vertically for gripping the lower edge (13) of the hood (5) guided by the retaining members (6).
- Apparatus according to one of claims 4 to 6, characterised in that, after the stack of articles (1), covered with the hood (5), has been raised, the gripping members (12) are displaceable beneath the stack of articles (1).
- Apparatus according to one of claims 4 to 7, characterised in that each means (8) for the subsequent tensioning process includes two gripping members (12), which are disposed with a mutual spacing therebetween, and in that an adhesive spraying device (15) is disposed beneath the stack of articles (1), said device spraying adhesive on the lower edge (13) of the hood (5) in the region between the gripping members (12).
- Apparatus according to one of claims 4 to 8, characterised in that a pressure roller (16) is provided between the gripping members (12) of each means (8), said roller being displaceable with the gripping members (12) and urgeable against the underside of the stack of articles (1) or respectively of the pallet (2).
- Apparatus according to one of claims 4 to 9, characterised in that the pressure roller (16) has a pressure cylinder (19) associated therewith.
- Apparatus according to one of claims 4 to 10, the edge being presed against the pallet by at least one displaceable heating disc and the film material thereby being joined to the pallet material, characterised in that groups of heating discs (108), which are coaxial with one another, are disposed in the region of at least two pallet sides, the axes of said plates extending parallel to the sides of the pallet (102), and in that each group of heating discs (108) has a drive (115) associated therewith, by means of which drive the heating discs (108) are guided in a rolling movement in the longitudinal direction of the film hood (101).
- Apparatus according to claim 11, characterised in that the heating discs (108) are pressed against the pallet (102) in a resilient manner.
- Apparatus according to claim 11 or 12, characterised in that the heating discs (108) are mounted on associated pivot levers (111) which, in turn, are pivotally connected to a carriage (113), which is displaceable by the drive (115), and in that the pivot levers (111) are supported on the carriage (113) by springs (116).
- Apparatus according to one of claims 11 to 13, characterised in that return springs (117) are disposed between the heating discs (108) and their pivot levers (111).
- Apparatus according to one of claims 11 to 14, characterised in that the heating discs (108) are circumferentially covered with heating strips (109).
- Apparatus according to one of claims 11 to 15, characterised in that the heating discs (108) engage with the underside of the pallet (102).
- Apparatus according to claim 16, characterised in that the heating discs (108) are disposed between the conveyor rollers (104) of a conveyor.
- Apparatus according to one of claims 11 to 15, characterised in that the heating discs (108) engage with the sides of the pallet (102).
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE9013049U | 1990-09-13 | ||
DE9013049U DE9013049U1 (en) | 1990-09-13 | 1990-09-13 | Device for securing the lower edge of stretch film covers pulled over palletized stacks of goods |
DE9104072U | 1991-04-04 | ||
DE9104072U DE9104072U1 (en) | 1991-04-04 | 1991-04-04 | Device for covering a stack of goods with stretch film |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0519116A1 EP0519116A1 (en) | 1992-12-23 |
EP0519116B1 true EP0519116B1 (en) | 1995-08-16 |
Family
ID=25957166
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91115042A Expired - Lifetime EP0519116B1 (en) | 1990-09-13 | 1991-09-06 | Method for covering a stack of articles with a stretchfoil hood and device for carrying out the method |
Country Status (6)
Country | Link |
---|---|
US (1) | US5247783A (en) |
EP (1) | EP0519116B1 (en) |
AT (1) | ATE126490T1 (en) |
DE (1) | DE59106276D1 (en) |
DK (1) | DK0519116T3 (en) |
ES (1) | ES2077751T3 (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4327450C1 (en) * | 1993-08-14 | 1995-01-05 | Moellers Maschf Gmbh | Method and apparatus for drawing a stretch-film cover over a product stack |
ES2130024B1 (en) * | 1996-01-26 | 2000-01-16 | Mecanizacion Del Transporte Y | DEVICE AND PROCEDURE TO RETRACT A PLASTIC SHEET ON PALLETIZED GOODS. |
EP1147050B1 (en) * | 1999-01-28 | 2002-10-02 | Msk-Verpackungs-Systeme Gesellschaft Mit Beschränkter Haftung | Device for shrinking a shrink-wrap film |
EP1059233A1 (en) * | 1999-04-16 | 2000-12-13 | Kl- Lachenmeier A/S | Method and device for packaging objects in a film-hood |
ES2194656T3 (en) * | 2000-08-09 | 2003-12-01 | Lachenmeier As | PROCEDURE AND APPLIANCE TO PACK OBJECTS. |
EP1717148B1 (en) * | 2002-04-19 | 2008-04-09 | Msk-Verpackungs-Systeme Gesellschaft Mit Beschränkter Haftung | Method for wrapping products |
ITBO20040174A1 (en) * | 2004-03-26 | 2004-06-26 | Aetna Group Spa | EQUIPMENT FOR COVERING GROUPS OF PRODUCTS WITH EXTENSIBLE TUBULAR FILM |
US7861500B2 (en) * | 2008-07-14 | 2011-01-04 | Bradley Arthur Bennett | Automatic cart bagger |
KR20130089035A (en) * | 2012-02-01 | 2013-08-09 | 삼성전자주식회사 | Shrink film packing system |
EP3147226B1 (en) * | 2015-09-23 | 2018-07-04 | MSK - Verpackungs-Systeme GmbH | Method for creating at least one clearance in a sheath composed of shrink film, securing a stack of articles on a pallet, and moulding device for carrying out said method |
DE102016212436B4 (en) * | 2016-07-07 | 2018-07-26 | Signode Industrial Group Llc | Packaging process and hood stretcher |
CN106240936B (en) * | 2016-08-31 | 2018-08-28 | 上海古鳌电子科技股份有限公司 | A kind of bill bag coheres device |
US11492155B2 (en) | 2020-05-14 | 2022-11-08 | Signode Industrial Group Llc | Stretch-hood machine |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1298444B (en) * | 1966-10-19 | 1969-06-26 | Alkor Oerlikon Plastic Gmbh | Transport and storage unit |
DE1927356A1 (en) * | 1969-05-29 | 1971-02-04 | Keller & Co Masch C | Device for wrapping stacks, in particular stacks of bricks, by means of a film tube |
US3807126A (en) * | 1970-06-10 | 1974-04-30 | Schwartz F Gmbh Ind Und Maschi | Wrapping and securing loads on pallets |
SE404160B (en) * | 1974-05-11 | 1978-09-25 | Moellers Maschf | DEVICE FOR PULLING A HOSE OF HEAT CREAMABLE PLASTIC OVER A PACKAGE OF GOODS |
US4063401A (en) * | 1974-09-24 | 1977-12-20 | Higgins David M | Bagging machine |
DE2549251C3 (en) * | 1975-11-04 | 1981-06-19 | Nütro Patentverwertungs- u. Maschinen-Handels-GmbH, 8500 Nürnberg | Device for covering a gusseted tube over stacked objects |
FR2417434A1 (en) * | 1978-02-18 | 1979-09-14 | Moellers Maschf | DEVICE FOR INTRODUCING PARTS OF A CONTRACTABLE PACKAGING SHEET INTO RECESSED ZONES PROVIDED ON THE SIDES OF A STACK OF OBJECTS |
DE3262894D1 (en) * | 1981-10-16 | 1985-05-09 | Msk Verpackung Syst Gmbh | Method and device for packaging goods stacked on a pallet |
DE3327996A1 (en) * | 1983-08-03 | 1985-02-14 | MSK - Verpackungs-Systeme GmbH, 4190 Kleve | METHOD FOR PACKING PALLETIZED GOODS STACKS AND DEVICE FOR CARRYING OUT THIS METHOD |
DE3621296A1 (en) * | 1986-06-25 | 1988-01-14 | Moellers Maschf Gmbh | DEVICE FOR PRODUCING A PALLETLESS PACKAGING UNIT COMPLETELY COVERED WITH SHRINK FILM |
DE8616963U1 (en) * | 1986-06-25 | 1989-02-09 | Möllers Maschinenfabrik GmbH, 4720 Beckum | Device for pulling and shrinking a shrink film hood over or onto a stack. |
DE3621297A1 (en) * | 1986-06-25 | 1988-01-14 | Moellers Maschf Gmbh | DEVICE FOR PULLING ON AND SHRINKING A SHRINK FILM HOOD OVER OR ON A STACK. |
DE8816085U1 (en) * | 1988-12-24 | 1989-03-09 | MSK-Verpackungs-Systeme GmbH, 4190 Kleve | Device for packing a stack of goods arranged on a pallet |
DE9001319U1 (en) * | 1990-02-06 | 1990-04-12 | MSK-Verpackungs-Systeme GmbH, 47533 Kleve | Device for covering a stack of goods with stretch film |
DE9013049U1 (en) * | 1990-09-13 | 1990-12-06 | Develog, Reiner Hannen & Cie, Courtelary | Device for securing the lower edge of stretch film covers pulled over palletized stacks of goods |
DE9104072U1 (en) * | 1991-04-04 | 1991-06-20 | Develog, Reiner Hannen & Cie, Courtelary | Device for covering a stack of goods with stretch film |
-
1991
- 1991-09-06 AT AT91115042T patent/ATE126490T1/en not_active IP Right Cessation
- 1991-09-06 EP EP91115042A patent/EP0519116B1/en not_active Expired - Lifetime
- 1991-09-06 DE DE59106276T patent/DE59106276D1/en not_active Expired - Lifetime
- 1991-09-06 ES ES91115042T patent/ES2077751T3/en not_active Expired - Lifetime
- 1991-09-06 DK DK91115042.3T patent/DK0519116T3/en active
- 1991-09-12 US US07/758,863 patent/US5247783A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US5247783A (en) | 1993-09-28 |
ATE126490T1 (en) | 1995-09-15 |
DE59106276D1 (en) | 1995-09-21 |
EP0519116A1 (en) | 1992-12-23 |
DK0519116T3 (en) | 1996-01-15 |
ES2077751T3 (en) | 1995-12-01 |
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