EP0068585A1 - Pallet - Google Patents

Pallet Download PDF

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Publication number
EP0068585A1
EP0068585A1 EP82200787A EP82200787A EP0068585A1 EP 0068585 A1 EP0068585 A1 EP 0068585A1 EP 82200787 A EP82200787 A EP 82200787A EP 82200787 A EP82200787 A EP 82200787A EP 0068585 A1 EP0068585 A1 EP 0068585A1
Authority
EP
European Patent Office
Prior art keywords
cover plate
lower cover
upper cover
pallet
plastic
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
Application number
EP82200787A
Other languages
German (de)
French (fr)
Other versions
EP0068585B1 (en
Inventor
Hendrik Van Dalen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Stamicarbon BV
Original Assignee
Stamicarbon BV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Stamicarbon BV filed Critical Stamicarbon BV
Priority to AT82200787T priority Critical patent/ATE22860T1/en
Publication of EP0068585A1 publication Critical patent/EP0068585A1/en
Application granted granted Critical
Publication of EP0068585B1 publication Critical patent/EP0068585B1/en
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D19/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D19/0004—Rigid pallets without side walls
    • B65D19/0006—Rigid pallets without side walls the load supporting surface being made of a single element
    • B65D19/0008—Rigid pallets without side walls the load supporting surface being made of a single element forming a continuous plane contact surface
    • B65D19/001—Rigid pallets without side walls the load supporting surface being made of a single element forming a continuous plane contact surface the base surface being made of a single element
    • B65D19/0012—Rigid pallets without side walls the load supporting surface being made of a single element forming a continuous plane contact surface the base surface being made of a single element forming a continuous plane contact surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00009—Materials
    • B65D2519/00014—Materials for the load supporting surface
    • B65D2519/00024—Metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00009—Materials
    • B65D2519/00014—Materials for the load supporting surface
    • B65D2519/00034—Plastic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00009—Materials
    • B65D2519/00014—Materials for the load supporting surface
    • B65D2519/00044—Combination, e.g. different elements made of different materials, laminates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00009—Materials
    • B65D2519/00049—Materials for the base surface
    • B65D2519/00059—Metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00009—Materials
    • B65D2519/00049—Materials for the base surface
    • B65D2519/00069—Plastic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00009—Materials
    • B65D2519/00049—Materials for the base surface
    • B65D2519/00079—Combination, e.g. different elements made of different materials, laminates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00009—Materials
    • B65D2519/00084—Materials for the non-integral separating spacer
    • B65D2519/00104—Plastic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00258—Overall construction
    • B65D2519/00283—Overall construction of the load supporting surface
    • B65D2519/00288—Overall construction of the load supporting surface made of one piece
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00258—Overall construction
    • B65D2519/00313—Overall construction of the base surface
    • B65D2519/00318—Overall construction of the base surface made of one piece
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00258—Overall construction
    • B65D2519/00368—Overall construction of the non-integral separating spacer
    • B65D2519/00373—Overall construction of the non-integral separating spacer whereby at least one spacer is made of one piece
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00258—Overall construction
    • B65D2519/00398—Overall construction reinforcements
    • B65D2519/00432—Non-integral, e.g. inserts
    • B65D2519/00442—Non-integral, e.g. inserts on the base surface

Definitions

  • the invention relates to a pallet made of plastic for one-sided loading with an upper cover plate and a lower cover plate separated from this upper cover plate by spacer blocks and provided with wheel openings.
  • German Offenlegungsschrift 2 0 54 229 range of this type has a lower cover plate with four openings for the wheels of a pallet hand truck.
  • the upper cover plate, possibly together with the spacer blocks, and the lower cover plate of this type of pallet are made of plastic by injection molding.
  • the thickness dimension of the lower cover plate is essentially limited by the requirement that the wheels of a pallet hand truck can still be pushed through the openings in the lower cover plate from the space between the lower and upper cover plates to such an extent that they touch the ground.
  • An essential one The minimum thickness of the upper cover plate standard that is placed on the pallet is that a pallet that is regularly loaded with a certain weight may only have a certain maximum deflection if this pallet is lifted by prongs of a forklift that attack the underside of the upper cover plate . Due to the requirements and standards package mentioned here, the plastic pallets in question, which are intended for heavy loads of, for example, looo kg and more, have a lower cover plate which is thinner than the upper cover plate.
  • the lower cover plate of a pallet rests on the load of a pallet underneath.
  • the weight on the upper cover plate of any pallet is transferred to the load underneath via the blocks and the lower cover plate of this pallet and thereby reaches the upper cover plate of the following pallet below.
  • the parts of the upper cover plate located between the spacers, but also the parts of the lower cover plate play a role in the power transmission.
  • the main thing to consider here is that the cargo consists of sacks or barrels.
  • pallets according to the current state of the art are made of plastic with better mechanical properties.
  • Plastics suitable for a range such as polyethylene, polypropylene, copolymers of ethylene and propylene and mixtures of these homo- and / or copolymers, are mixed with additives, such as glass or asbestos fibers. These are more expensive plastics, which also increase the manufacturing costs of the pallet by the fact that a hard aggregate such as glass causes the injection molding machine to wear heavily.
  • the invention aims to provide a pallet made of plastic for one-sided loading, which comprises an upper cover plate and a lower cover plate separated from this upper cover plate by spacer blocks and provided with wheel openings, the pallet in a surprisingly simple manner a new solution to the disadvantages described offers and switches them off to a considerable extent.
  • the components of the lower cover plate are made entirely or partially of a material with a greater bending strength than that of the material of the upper cover plate.
  • the upper cover plate and the spacer blocks of the pallet according to the invention can be injection molded from non-reinforced material which is cheaper than the material used for the lower cover plate.
  • the wear of the injection molding machine is less if only the lower cover plates are made of material that contains fillers that cause wear.
  • a suitable plastic for the lower cover plate is glass, e.g. Glass fibers, reinforced plastic.
  • the glass can be chemically bound to the plastic.
  • a very suitable material for the lower cover plate is the polypropylene in plate form, which is marketed under the trademark AZDEL by PPG Industries Inc. and is reinforced with endless glass fibers. This plastic combines high bending strength with good machinability by hot pressing, which means that the lower cover plate can be given a profile that increases rigidity in a simple manner.
  • a plastic reinforced with chopped glass fibers chemically bonded to the plastic is also a useful material for the lower ceiling panel.
  • polyethylene or polypropylene with these chemically bonded glass fibers also have a greatly increased flexural strength.
  • the bending strength of the components of the lower cover plate can also be increased by attaching a metal reinforcement therein.
  • This reinforcement then exists e.g. made of straight, hollow aluminum profiles, which are attached in the lower cover plate from spacer block to spacer block. A method for applying this reinforcement is described in the as yet unpublished Dutch patent application ........ together
  • the lower cover plate is made of a plastic which, apart from the means for increasing the bending strength of the components, is of the same type as that from which the upper cover plate and the spacer blocks are made by injection molding.
  • suitable mirror flaps can be successfully placed between the lower cover plate and the spacer blocks.
  • a glue, bolt or snap connection will usually be made.
  • the pallet according to the invention still has a significant advantage. Because of the greater flexural strength of the components of the lower cover plate, the thickness of the upper cover plate can be smaller. In addition to significant material savings, this also means storage space savings.
  • the pallets according to the invention can be put together extremely well loaded with boxes to form a stack

Abstract

A pallet for materials handling consists of an upper cover plate which is sepd. by distance blocks from a lower cover plate with openings for the wheels. The lower cover plate consists at least partly of a material with a higher flexural strength than the upper cover plate. Suitable materials for the upper cover plate and the distance blocks are polypropylene injection mouldings and for the lower cover plate polypropylene reinforced with endless or chopped glass fibres. The greater strength of the lower cover plate makes it possible to reduce the thickness of the upper cover plate, although both use the same basic material.

Description

Die Erfindung betrifft eine aus Kunststoff hergestellte Palette für einseitige Beladung mit einer oberen Deckplatte und einer von dieser oberen Deckplatte durch Distanzklötze getrennten, mit Radöffnungen versehenen unteren Deckplatte.The invention relates to a pallet made of plastic for one-sided loading with an upper cover plate and a lower cover plate separated from this upper cover plate by spacer blocks and provided with wheel openings.

Eine aus der deutschen Offenlegungsschrift 20 54 229 bekannte Palette dieses Typs besitzt eine untere Deckplatte mit vier Öffnungen für die Räder eines Palettenhandwagens.One known from the German Offenlegungsschrift 2 0 54 229 range of this type has a lower cover plate with four openings for the wheels of a pallet hand truck.

Die obere Deckplatte, eventuell zusammen mit den Distanzklötzen, und die untere Deckplatte dieser Art Paletten werden aus Kunststoff im Spritzgußverfahren hergestellt. Die Dickenabmessung der unteren Deckplatte wird im wesentlichen durch die Forderung begrenzt, daß die Räder eines Palettenhandwagens aus dem Raum zwischen unterer und oberer Deckplatte noch so weit durch die Öffnungen in der unteren Deckplatte geschoben werden können, daß sie den Boden berühren. Eine wesentliche, die Mindestdicke der oberen Deckplatte bestimmende Norm, die an die Palette gestellt wird, ist die, daß eine mit einem bestimmten Gewicht regelmäßig beladene Palette nur eine bestimmte maximale Durchbiegung aufweisen darf, wenn diese Palette durch auf der Unterseite der oberen Deckplatte angreifende Zinken eines Gabelstaplers hochgehoben wird. Aufgrund des hier angesprochenen Forderungs- und Normenpakets besitzen die betreffenden Kunststoffpaletten, die für schwere Ladungen von z.B. looo kg und mehr bestimmt sind, eine in bezug auf die obere Deckplatte dünnere untere Deckplatte.The upper cover plate, possibly together with the spacer blocks, and the lower cover plate of this type of pallet are made of plastic by injection molding. The thickness dimension of the lower cover plate is essentially limited by the requirement that the wheels of a pallet hand truck can still be pushed through the openings in the lower cover plate from the space between the lower and upper cover plates to such an extent that they touch the ground. An essential one The minimum thickness of the upper cover plate standard that is placed on the pallet is that a pallet that is regularly loaded with a certain weight may only have a certain maximum deflection if this pallet is lifted by prongs of a forklift that attack the underside of the upper cover plate . Due to the requirements and standards package mentioned here, the plastic pallets in question, which are intended for heavy loads of, for example, looo kg and more, have a lower cover plate which is thinner than the upper cover plate.

In einem Stapel beladener Paletten ruht die untere Deckplatte einer Palette auf der Ladung einer sich darunter befindlichen Palette. Das Gewicht auf der oberen Deckplatte einer beliebigen Palette wird über die Klötze und die untere Deckplatte dieser Palette auf die Ladung darunter übertragen und erreicht hierdurch die obere Deckplatte der folgenden, darunterliegenden Palette. Nicht allein die zwischen den Distanzhaltern gelegenen Teile der oberen Deckplatte, sondern auch die Teile der unteren Deckplatte spielen eine Rolle bei der Kraftübertragung. Hier muß vor allem an den Fall gedacht werden, daß die Ladung aus Säcken oder Fässern besteht.In a stack of loaded pallets, the lower cover plate of a pallet rests on the load of a pallet underneath. The weight on the upper cover plate of any pallet is transferred to the load underneath via the blocks and the lower cover plate of this pallet and thereby reaches the upper cover plate of the following pallet below. Not only the parts of the upper cover plate located between the spacers, but also the parts of the lower cover plate play a role in the power transmission. The main thing to consider here is that the cargo consists of sacks or barrels.

Da die untere Deckplatte der aus Kunststoff hergestellten Paletten - wie vorstehend angegeben - an eine maximale Dickenabmessung gebunden ist und außerdem noch Radöffnungen besitzt, wird die Anzahl beladener Paletten in einem Stapel durch die maximal einzusetzende Dickenabmessung der Bauteile der unteren Deckplatte bestimmt. Um dem zu begegnen und um die Anzahl beladener Paletten vergrößern zu können, werden Paletten nach dem heutigen Stand der Technik aus Kunststoff mit besseren mechanischen Eigenschaften hergestellt. Für eine Palette geeignete Kunststoffe, wie Polyäthylen, Polypropylen, Copolymere von Äthylen und Propylen und Mischungen dieser Homo- und/oder Copolymere, werden mit Zuschlagstoffen, wie Glas oder , Asbestfasern, vermischt. Das sind teurere Kunststoffe, die die Herstellungskosten der Palette auch dadurch erhöhen, daß ein harter Zuschlagstoff wie Glas eine starke Abnutzung der Spritzgußmaschine verursacht.As the lower cover plate of the pallets made of plastic - as stated above - is tied to a maximum thickness dimension and also has wheel openings, the number of loaded pallets in one Stack determined by the maximum thickness of the components of the lower cover plate to be used. In order to counteract this and to be able to increase the number of loaded pallets, pallets according to the current state of the art are made of plastic with better mechanical properties. Plastics suitable for a range, such as polyethylene, polypropylene, copolymers of ethylene and propylene and mixtures of these homo- and / or copolymers, are mixed with additives, such as glass or asbestos fibers. These are more expensive plastics, which also increase the manufacturing costs of the pallet by the fact that a hard aggregate such as glass causes the injection molding machine to wear heavily.

Die Erfindung bezweckt, eine aus Kunststoff hergestellte Palette für einseitige Beladung zu schaffen, die eine obere Deckplatte und eine von dieser oberen Deckplatte durch Distanzklötze getrennte, mit Radöffnungen versehene untere Deckplatte umfaßt, wobei die Palette auf überraschend einfache Weise eine neue Lösung für die geschilderten Nachteile bietet und diese in erheblichem Maße ausschaltet.The invention aims to provide a pallet made of plastic for one-sided loading, which comprises an upper cover plate and a lower cover plate separated from this upper cover plate by spacer blocks and provided with wheel openings, the pallet in a surprisingly simple manner a new solution to the disadvantages described offers and switches them off to a considerable extent.

Das wird erfindungsgemäß dadurch erreicht, daß die Bauteile der unteren Deckplatte ganz oder teilweise aus einem Material mit einer größeren Biegefestigkeit als der des Materials der oberen Deckplatte hergestellt werden.This is achieved according to the invention in that the components of the lower cover plate are made entirely or partially of a material with a greater bending strength than that of the material of the upper cover plate.

Die obere Deckplatte und die Distanzklötze der erfindungsgemäßen Palette können im Spritzgußverfahren aus nicht verstärktem Material hergestellt werden, das billiger ist als das Material, das für die untere Deckplatte verwendet wird. Die Abnutzung der Spritzgußmaschine ist geringer, wenn nur die unteren Deckplatten aus Material hergestellt werden, in dem die Abnutzung verursachende Füllstoffe enthalten sind.The upper cover plate and the spacer blocks of the pallet according to the invention can be injection molded from non-reinforced material which is cheaper than the material used for the lower cover plate. The wear of the injection molding machine is less if only the lower cover plates are made of material that contains fillers that cause wear.

Ein geeigneter Kunststoff für die untere Deckplatte ist mit Glas, wie z.B. Glasfasern, verstärkter Kunststoff. Das .Glas kann chemisch an den Kunststoff gebunden sein.A suitable plastic for the lower cover plate is glass, e.g. Glass fibers, reinforced plastic. The glass can be chemically bound to the plastic.

Ein sehr geeignetes Material für die untere Deckplatte ist das unter dem Warenzeichen AZDEL durch die Firma PPG Industries Inc. auf den Markt gebrachte, mit endlosen Glasfasern verstärkte Polypropylen in Plattenform. Dieser Kunststoff verbindet eine hohe Biegefestigkeit mit einer guten Bearbeitbarkeit durch Warmpressen, wodurch der unteren Deckplatte auf einfache Weise eine die Steifigkeit erhöhende Profilierung gegeben werden kann.A very suitable material for the lower cover plate is the polypropylene in plate form, which is marketed under the trademark AZDEL by PPG Industries Inc. and is reinforced with endless glass fibers. This plastic combines high bending strength with good machinability by hot pressing, which means that the lower cover plate can be given a profile that increases rigidity in a simple manner.

Ein mit chemisch an den Kunststoff gebundenen, zerhackten Glasfasern verstärkter Kunststoff ist ebenfalls ein gut brauchbares Material für die untere Deckenplatte. Zum Beispiel weisen Polyäthylen oder Polypropylen mit diesen chemisch gebundenen Glasfasern nämlich auch eine stark vergrößerte Biegefestigkeit auf.A plastic reinforced with chopped glass fibers chemically bonded to the plastic is also a useful material for the lower ceiling panel. For example, polyethylene or polypropylene with these chemically bonded glass fibers also have a greatly increased flexural strength.

Die Biegefestigkeit der Bauteile der unteren Deckplatte kann auch dadurch erhöht werden, daß eine Metallarmierung darin angebracht wird. Diese Armierung besteht dann z.B. aus geraden, hohlen Aluminiumprofilen, die in der unteren Deckplatte von Distanzklotz zu Distanzklotz angebracht sind. Ein Verfahren zum Anbringen dieser Armierung wird in der noch nicht offengelegten niederländischen Patentanmeldung ............. beschrieben.The bending strength of the components of the lower cover plate can also be increased by attaching a metal reinforcement therein. This reinforcement then exists e.g. made of straight, hollow aluminum profiles, which are attached in the lower cover plate from spacer block to spacer block. A method for applying this reinforcement is described in the as yet unpublished Dutch patent application ..............

Es hat den Vorteil, daß die untere Deckplatte aus einem Kunststoff hergestellt ist, der - abgesehen von den darin angebrachten Mitteln zum Erhöhen der Biegefestigkeit der Bauteile - von derselben Art ist wie der, aus dem die obere Deckplatte und die Distanzklötze im Spritzgußverfahren hergestellt sind. In diesem Fall können mit Erfolg taugliche Spiegellaschen zwischen die untere Deckplatte und die Distanzklötze gelegt werden. In anderen Fällen wird gewöhnlich eine Leim-, Bolzen- oder Schnappverbindung angebracht werden.It has the advantage that the lower cover plate is made of a plastic which, apart from the means for increasing the bending strength of the components, is of the same type as that from which the upper cover plate and the spacer blocks are made by injection molding. In this case, suitable mirror flaps can be successfully placed between the lower cover plate and the spacer blocks. In other cases, a glue, bolt or snap connection will usually be made.

Es hat sich herausgestellt, daß die erfindungsgemäße Palette noch einen wesentlichen Vorteil aufweist. Durch die größere Biegefestigkeit der Bauteile der unteren Deckplatte nämlich kann die Dicke der oberen Deckplatte geringer sein. Neben einer bedeutenden Materialeinsparung bedeutet dies auch eine Lagerraumeinsparung.It has been found that the pallet according to the invention still has a significant advantage. Because of the greater flexural strength of the components of the lower cover plate, the thickness of the upper cover plate can be smaller. In addition to significant material savings, this also means storage space savings.

Die erfindungsgemäßen Paletten können außerordentlich gut mit Kästen beladen zu einem Stapel zusammengesetztThe pallets according to the invention can be put together extremely well loaded with boxes to form a stack

werden. In einem Stapel mit Kästen beladener Platten spielen nämlich die zwischen den Distanzklötzen gelegenen Teile der unteren Deckplatte eine weniger große Rolle bei der Kraftübertragung. Es hat sich nun aber herausgestellt, daß während des Stapelns eine Palette ziemlich regelmäßig auf der Kistenladung einer anderen Palette falsch gestapelt wird. Hierbei ruhen die zwischen den Distanzklötzen gelegenen Teile der unteren Deckplatte der obersten Palette während einiger Zeit auf den ziemlich schmalen Oberkanten der Kisten auf der untersten Pallete, wodurch diese Bauteile reißen oder brechen. Als Folge davon wird eine solche Palette zur Weiterverwendung vollkommen unsicher. Mit einer erfindungsgemäßen Palette können derartige unerwünschte Situationen verhindert werden.will. In a stack of plates loaded with boxes, the parts of the lower cover plate located between the spacer blocks play a less important role in the transmission of force. However, it has now been found that a pallet is stacked incorrectly on the crate load of another pallet quite regularly during stacking. The parts of the lower cover plate of the uppermost pallet lying between the spacer blocks rest for some time on the rather narrow upper edges of the boxes on the lowest pallet, as a result of which these components tear or break. As a result, such a palette becomes completely unsafe for further use. With a pallet according to the invention, such undesirable situations can be prevented.

Claims (10)

1. Aus Kunststoff hergestellte Palette für einseitige Beladung mit einer oberen Deckplatte und einer von dieser oberen Deckplatte durch Distanzklötze getrennten, mit Radöffnungen versehenen unteren Deckplatte, dadurch gekennzeichnet, daß die untere Deckplatte ganz oder teilweise aus einem Material mit höherer Biegefestigkeit als der des Materials der oberen Deckplatte besteht.1. Pallet made of plastic for one-sided loading with an upper cover plate and one of this upper cover plate separated by spacer blocks, provided with wheel openings lower cover plate, characterized in that the lower cover plate is wholly or partly made of a material with a higher bending strength than that of the material of top cover plate. 2. Palette nach Anspruch 1, dadurch gekennzeichnet, daß die untere Deckplatte aus einem mit Glas verstärkten Kunststoff besteht.2. Pallet according to claim 1, characterized in that the lower cover plate consists of a glass reinforced plastic. 3. Palette nach Anspruch 2, dadurch gekennzeichnet, daß das Glas chemisch an den Kunststoff gebunden ist.3. Pallet according to claim 2, characterized in that the glass is chemically bound to the plastic. 4. Palette nach den Ansprüchen 2 oder 3, dadurch gekennzeichnet, daß die untere Deckplatte aus einem mit endlosen Glasfasern verstärkten Kunststoff besteht.4. Pallet according to claims 2 or 3, characterized in that the lower cover plate consists of a plastic reinforced with endless glass fibers. 5. Palette nach den Ansprüchen 2 oder 3, dadurch gekennzeichnet, daß die untere Deckplatte aus einem mit zerhackten Glasfasern verstärkten Kunststoff besteht.5. Pallet according to claims 2 or 3, characterized in that the lower cover plate consists of a plastic reinforced with chopped glass fibers. 6. Palette nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die untere Deckplatte eine Metallarmierung besitzt.6. Pallet according to one of claims 1 to 5, characterized in that the lower cover plate has a metal reinforcement. 7. Palette nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß der Kunststoff der unteren Deckplatte - abgesehen von den darin angebrachten, die Biegefestigkeit der Bauteile erhöhenden Mitteln - derselbe ist wie der, aus dem die obere Deckplatte und die Distanzklötze hergestellt sind.7. Pallet according to one of claims 1 to 6, characterized in that the plastic of the lower cover plate - apart from the attached therein, the bending strength of the components increasing means - is the same as that from which the upper cover plate and the spacer blocks are made. 8. Palette nach Anspruch 7, dadurch gekennzeichnet, daß die obere Deckplatte und die Distanzklötze aus im Spritzgußverfahren bearbeitetem Polypropylen bestehen und daß die untere Deckplatte aus mit endlosen Glasfasern verstärktem Polypropylen besteht.8. Pallet according to claim 7, characterized in that the upper cover plate and the spacer blocks are made of injection-molded polypropylene and that the lower cover plate consists of polypropylene reinforced with endless glass fibers. 9. Palette nach Anspruch 7, dadurch gekennzeichnet, daß die obere Deckplatte und die Distanzklötze aus im Spritzgußverfahren bearbeitetem Polypropylen bestehen und daß die untere Deckplatte aus mit chemisch an das Polypropylen gebundenen, zerhackten Glasfasern verstärktem Polypropylen besteht.9. Pallet according to claim 7, characterized in that the upper cover plate and the spacer blocks are made of injection-molded polypropylene and that the lower cover plate consists of chemically bonded to the polypropylene, chopped glass fibers reinforced polypropylene. 10. Palette nach Anspruch 8., dadurch gekennzeichnet, daß die untere Deckplatte eine durch Warmformpressen erzielte Profilierung besitzt.1 0 . Pallet according to claim 8 . , characterized in that the lower cover plate has a profile obtained by hot-pressing.
EP82200787A 1981-06-30 1982-06-25 Pallet Expired EP0068585B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82200787T ATE22860T1 (en) 1981-06-30 1982-06-25 PALETTE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8103142 1981-06-30
NL8103142A NL8103142A (en) 1981-06-30 1981-06-30 LOADBOARD.

Publications (2)

Publication Number Publication Date
EP0068585A1 true EP0068585A1 (en) 1983-01-05
EP0068585B1 EP0068585B1 (en) 1986-10-15

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ID=19837716

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EP82200787A Expired EP0068585B1 (en) 1981-06-30 1982-06-25 Pallet

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EP (1) EP0068585B1 (en)
AT (1) ATE22860T1 (en)
DE (1) DE3273769D1 (en)
NL (1) NL8103142A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2594416A1 (en) * 1986-02-18 1987-08-21 Roubin Pierre Reversible disposable pallet
EP0748742A2 (en) * 1995-06-16 1996-12-18 Hoechst Aktiengesellschaft Device for storing, transporting and packaging made of thermoplastic material

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2046650A1 (en) * 1969-09-17 1971-03-18 Evans Bellhouse Ltd , Manchester, Lancashire (Großbritannien) Moldings, especially pallets
DE2064131A1 (en) * 1970-12-28 1972-07-13 Mitsubishi Chemical Industries Ltd., Tokio Plastic pallet for fork lifts - by welding two ribbed plates together

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2046650A1 (en) * 1969-09-17 1971-03-18 Evans Bellhouse Ltd , Manchester, Lancashire (Großbritannien) Moldings, especially pallets
DE2064131A1 (en) * 1970-12-28 1972-07-13 Mitsubishi Chemical Industries Ltd., Tokio Plastic pallet for fork lifts - by welding two ribbed plates together

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2594416A1 (en) * 1986-02-18 1987-08-21 Roubin Pierre Reversible disposable pallet
EP0748742A2 (en) * 1995-06-16 1996-12-18 Hoechst Aktiengesellschaft Device for storing, transporting and packaging made of thermoplastic material
EP0748742A3 (en) * 1995-06-16 1998-03-11 Hoechst Aktiengesellschaft Device for storing, transporting and packaging made of thermoplastic material

Also Published As

Publication number Publication date
NL8103142A (en) 1983-01-17
ATE22860T1 (en) 1986-11-15
DE3273769D1 (en) 1986-11-20
EP0068585B1 (en) 1986-10-15

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