EP0727360A2 - Palette de transport en matière plastique avec renfort intérieur en bois et procédé pour sa fabrication - Google Patents

Palette de transport en matière plastique avec renfort intérieur en bois et procédé pour sa fabrication Download PDF

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Publication number
EP0727360A2
EP0727360A2 EP96102336A EP96102336A EP0727360A2 EP 0727360 A2 EP0727360 A2 EP 0727360A2 EP 96102336 A EP96102336 A EP 96102336A EP 96102336 A EP96102336 A EP 96102336A EP 0727360 A2 EP0727360 A2 EP 0727360A2
Authority
EP
European Patent Office
Prior art keywords
plastic
pallet
wooden
casing
transport pallet
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.)
Withdrawn
Application number
EP96102336A
Other languages
German (de)
English (en)
Other versions
EP0727360A3 (fr
Inventor
Martin Levermann
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.)
Zuckerverbund Nord AG
Original Assignee
Zuckerverbund Nord AG
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 Zuckerverbund Nord AG filed Critical Zuckerverbund Nord AG
Publication of EP0727360A2 publication Critical patent/EP0727360A2/fr
Publication of EP0727360A3 publication Critical patent/EP0727360A3/fr
Withdrawn legal-status Critical Current

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    • 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
    • B65D19/0053—Rigid pallets without side walls the load supporting surface being made of more than one element
    • B65D19/0077—Rigid pallets without side walls the load supporting surface being made of more than one element forming discontinuous or non-planar contact surfaces
    • B65D19/0089—Rigid pallets without side walls the load supporting surface being made of more than one element forming discontinuous or non-planar contact surfaces the base surface being made of more than one element
    • B65D19/0093—Rigid pallets without side walls the load supporting surface being made of more than one element forming discontinuous or non-planar contact surfaces the base surface being made of more than one element forming discontinuous or non-planar contact surfaces
    • B65D19/0095—Rigid pallets without side walls the load supporting surface being made of more than one element forming discontinuous or non-planar contact surfaces the base surface being made of more than one element forming discontinuous or non-planar contact surfaces and each contact surface having a stringer-like shape
    • 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
    • B65D2203/00—Decoration means, markings, information elements, contents indicators
    • B65D2203/10—Transponders
    • 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
    • B65D2519/00029—Wood
    • 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
    • B65D2519/00064—Wood
    • 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
    • B65D2519/00099—Wood
    • 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
    • B65D2519/00009—Materials
    • B65D2519/00084—Materials for the non-integral separating spacer
    • B65D2519/00114—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
    • B65D2519/00258—Overall construction
    • B65D2519/00263—Overall construction of the pallet
    • B65D2519/00273—Overall construction of the pallet made of more than 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
    • B65D2519/00283—Overall construction of the load supporting surface
    • B65D2519/00293—Overall construction of the load supporting surface made of more than 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
    • B65D2519/00283—Overall construction of the load supporting surface
    • B65D2519/00298—Overall construction of the load supporting surface skeleton type
    • 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
    • B65D2519/00323—Overall construction of the base surface made of more than 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
    • B65D2519/00328—Overall construction of the base surface shape of the contact surface of the base
    • B65D2519/00333—Overall construction of the base surface shape of the contact surface of the base contact surface having a stringer-like shape
    • 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
    • B65D2519/00547—Connections
    • B65D2519/00552—Structures connecting the constitutive elements of the pallet to each other, i.e. load supporting surface, base surface and/or separate spacer
    • B65D2519/00572—Structures connecting the constitutive elements of the pallet to each other, i.e. load supporting surface, base surface and/or separate spacer with separate auxiliary element, e.g. screws, nails, bayonets

Definitions

  • the invention relates to a transport pallet made of plastic with a wooden insert and a manufacturing method for a transport pallet.
  • Wooden transport pallets of various shapes and sizes are known in the prior art. There are standardized pallet sizes for international goods traffic, for example the so-called "Euro-Pallet". Wooden transport pallets have a wing on which goods to be transported are placed or stacked. The wing consists of a continuous plate or parallel longitudinal strips, which are connected by cross strips, often at a distance from each other. The one-piece or openwork wing formed in this way stands on feet, one of which is provided at the corner points of the wing and another to support the wing between the corner points. The feet are preferably made of wooden blocks of appropriate edge length. The feet of the wooden pallet rest on a substructure.
  • the substructure often consists only of longitudinal strips, each of which connects three feet of a wooden pallet arranged in the longitudinal direction on the underside.
  • Wooden pallets have a relatively low weight and high strength. Their disadvantages are a tendency to splinter and a special sensitivity to weather influences when stored outdoors. Wood also stores moisture, which the pallets then release to the goods on them. Moist wood can be a breeding ground for pests, bacteria and fungi, which in many applications does not meet the hygiene requirements. Moisture and contamination can be released to the palletized goods. Nails sticking out of the wooden pallets are another safety risk.
  • plastic transport pallets have been proposed that are inert and also resistant to air and water. Plastic pallets can be stored outdoors. However, these hold the standard dimensions for pallets, in particular with approximately the same strength as a wooden pallet the overall height, not one, is too heavy and / or has too high material costs.
  • a pallet made of plastic in which the support plate and integrally connected feet are made of plastic, in particular a tough-hard plastic foam material, and the feet are connected to one another by wooden strips in the area of their undersides. Recesses are provided on the plastic body in the area of the underside of the foot, into which the wooden strips are inserted. The wooden strips should preferably be nailed on.
  • the disadvantage is that a large part of the pallet is designed as a plastic body, so that a lower strength, especially at higher temperatures, and higher material costs than with wooden pallets. In particular due to the different elastic properties of the two joined materials (plastic / wood), a nail connection between the wooden strip and the plastic body is problematic.
  • DE-OS 21 01 535 and DE-GM 71 33 741 each show a transport range in which wooden boards are provided as an insert for reinforcing the plastic, the wood being exposed on the support surface in order to increase the slip resistance.
  • a transport pallet consisting of a support plate which is hollow on feet
  • the support plate consisting of a hard foam-forming plastic into which, completely encased, a support structure is foamed and to which the feet are attached .
  • the support frame consists of wooden strips arranged crosswise or a structural steel mat.
  • Polystyrene is used as the plastic in the known pallets described. This material is used by experts in wood / plastic connections chosen because it has an expansion coefficient roughly similar to that of wood. However, it is relatively brittle, heavy and expensive.
  • the wooden insert forms a pallet-shaped wooden core, which is surrounded by a plastic sheathing on all sides.
  • the object is achieved in that a pallet-shaped wooden core, preferably made in glue connection, is subsequently covered with a plastic as a whole.
  • the pallet according to the invention is resistant to environmental influences. In particular, it is prevented that the wooden components of the transport pallet absorb moisture and undesirably release it again on goods lying thereon and / or in storage rooms.
  • the pallet according to the invention can therefore be stored outdoors without any problems. Furthermore, the risk of damage to goods stacked on the pallets or of injuries to the people handling the pallets is greatly reduced, since the surface of the pallet according to the invention is smooth due to the plastic coating.
  • the wooden core to be encased is only produced in dimensions somewhat smaller than a standard wooden pallet and then encased.
  • the wooden core to be encased therefore has almost the same strength as a conventional wooden pallet.
  • the weight of the pallet according to the invention does not increase because the plastic casing can be carried out foamed.
  • the material costs are somewhat higher compared to a conventional wooden pallet.
  • a considerably longer service life of the pallet according to the invention is achieved, the strength and usability essentially corresponding to the conventional wooden pallets.
  • the wall thickness of the plastic sheathing is advantageously 4 to 5 mm, preferably 5 mm.
  • the specified thickness of the plastic layer on the one hand weakens the wood core to be encased correspondingly smaller in size compared to competing wooden pallets, but the plastic layer has a sufficient thickness to fulfill the sealing protective function as long as possible in rough everyday use.
  • anti-slip profiles are provided above the plastic casing and can preferably be inserted into recesses in the plastic casing, slipping of the goods stacked on the pallet according to the invention is avoided when handling the pallet.
  • a wooden core is first produced according to the invention, which is then subsequently encased in one piece as a monolith with a plastic.
  • the wooden cores to be encased can therefore advantageously be produced in the manner known for wooden pallets, but preferably in glue connection, after which an additional process step, namely the production of the plastic encapsulation, is then added.
  • an additional process step namely the production of the plastic encapsulation
  • Existing production systems for ordinary wooden pallets can therefore be retrofitted.
  • the plastic sheathing is advantageously applied in a plastic injection system using the injection molding process. With this method, a uniform layer thickness of the plastic sheathing can be achieved.
  • the adhesion of the plastic sheathing to the wooden core can also be increased by applying the plastic under pressure.
  • anti-slip profiles to the pallet, the goods to be stacked on it can be secured against slipping.
  • the anti-slip profile can either be attached directly to the wooden pallet before the casing is applied or after the casing has been applied, preferably in recesses provided in the casing.
  • the anti-slip profiles for example in the form of corrugations, have to work through the plastic coating applied afterwards.
  • the subsequently applied slip resistance can also consist, for example, of rubber profiles.
  • a plant For the production of the wooden pallets according to the invention, a plant is preferably used which has an extruder and several - in particular approximately 4 - stations or locking units for the production of a pallet.
  • the extruder moves on tracks along the stations and can couple to each and carry out the plastic injection molding process.
  • the advantage of this concept is that the required relatively long cooling times can be used and compensated for. Since wood is a poor heat conductor and the plastic of the casing can only be cooled from the outside, the cooling time of the transport pallets is relatively long. This is completely compensated for by the preferred form of the plant, without having to drive increased equipment expenditure through several extruders. This also gives the opportunity to use different injection molds - if desired - to insert and align the pallet-shaped wooden skeletons in peace and to check them again before coating. The output of finished transport pallets is nevertheless pleasingly high.
  • the pallet 1 has a wooden insert, which represents a pallet-shaped wooden core 2, which is covered on all sides by a plastic covering 3.
  • the wooden core 2 has an openwork wing formed from five longitudinal strips 4.
  • the parallel longitudinal bars 4 are interconnected by three cross bars 5.
  • Wooden blocks 6 are located below the crossing points of the longitudinal and transverse strips 4, 5.
  • a further three longitudinal strips 7 are provided as a substructure, which connect the wooden blocks 6 on their underside in the longitudinal direction of the pallet.
  • the mentioned wooden parts, longitudinal strips 4, cross strips 5, wooden blocks 6 and longitudinal strips 7 are glued to their connecting surfaces and together form the pallet-shaped wooden core 2.
  • the described wooden core 2 is coated on all sides with the plastic casing 3 according to the invention.
  • the plastic casing 3 has a thickness of approximately 5 mm.
  • 3 recesses 8 can be provided in the plastic casing, into which non-slip profiles 9, for example rubber profiles, can be inserted.
  • recesses 10 can be provided, into which a transponder chip 11 can be inserted for identification of the goods stacked on the pallet.
  • the external dimensions of the pallet 1 according to the invention can be matched to the corresponding standard dimensions.
  • the pallet-shaped wooden core 2 is only to be dimensioned by twice the layer thickness of the plastic casing 3, in the present exemplary embodiment the plastic layer thickness is 5 mm, smaller than standard wooden pallets.
  • the pallet according to the invention can therefore meet the relevant standards and can therefore be used like a conventional wooden pallet.
  • the plastic pallet 1 can be handled with forklifts and pallet trucks and is also suitable for high-bay storage.
  • the recesses 8 and / or 10 can have a smaller depth than the layer thickness of the plastic casing 3 or the wood core has depressions at these points so that the layer thickness can be retained.
  • the plastic casing 3 therefore completely surrounds the wooden core 2.
  • the wood core 2 can therefore not absorb any substances from the environment, in particular no moisture. Accordingly, openings towards the wood core in the plastic casing 3 should be avoided.
  • the plastic casing 3 is therefore preferably hermetically sealed.
  • the wooden core 2 is first produced in a manner known for wooden pallets. However, nail joints are preferably dispensed with when assembling the wooden components and the components are glued together. This preferably glued wood core is then further processed as a monolith and coated in a plastic injection system under pressure with a polyolefin, in particular polyethylene, ie the prefabricated wooden core is placed in one piece in a corresponding injection mold and coated in one operation.
  • a polyolefin in particular polyethylene
  • a glued wood core creates a one-piece compact component with a correspondingly high strength.
  • a relatively unstable plastic such as polyethylene
  • the prefabricated wooden core is injection molded, a very intimate connection is formed, similar to vulcanization, on the contact surface of the wood and plastic. The stresses caused by the different shrinkage behavior of the materials wood and plastic are reduced within the elastic polyethylene layer.
  • the plastic casing can be repaired by welding.
  • the pallet-shaped wooden cores 2 are provided with the casing 3 by means of plastic from the extruder 20.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pallets (AREA)
EP96102336A 1995-02-16 1996-02-16 Palette de transport en matière plastique avec renfort intérieur en bois et procédé pour sa fabrication Withdrawn EP0727360A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1995105241 DE19505241A1 (de) 1995-02-16 1995-02-16 Transportpalette aus Kunststoff mit Holzeinlage sowie Herstellungsverfahren dafür
DE19505241 1995-02-16

Publications (2)

Publication Number Publication Date
EP0727360A2 true EP0727360A2 (fr) 1996-08-21
EP0727360A3 EP0727360A3 (fr) 1997-03-05

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP96102336A Withdrawn EP0727360A3 (fr) 1995-02-16 1996-02-16 Palette de transport en matière plastique avec renfort intérieur en bois et procédé pour sa fabrication

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EP (1) EP0727360A3 (fr)
DE (1) DE19505241A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1012662A3 (nl) * 1999-05-04 2001-02-06 Hemeldonck Emiel Van Palet en werkwijze voor het vervaardigen van zulk palet.
BE1013280A3 (nl) * 2000-02-10 2001-11-06 Didak Injection Nv Accessoire voor een palet, palet hiermee uitgerust en werkwijze voor het aanbrengen van dergelijk accessoire op een palet.
EP1203723A1 (fr) * 2000-11-03 2002-05-08 Kirschsieper, Rolf Dispositif de transport et de stockage
WO2005044679A1 (fr) * 2003-11-07 2005-05-19 Niels Graae Palettes/objets en bois revetus utilises dans des productions a exigence d'hygiene
US7419101B2 (en) 2004-09-13 2008-09-02 Omron Corporation Physical distribution management apparatus, physical distribution management pallet and physical distribution management system
EP2431289A1 (fr) * 2010-09-17 2012-03-21 STILL GmbH Palette de transport
CN102627163A (zh) * 2012-04-01 2012-08-08 南京赛旺科技发展有限公司 组合式木塑托盘底铺板
CN103562079A (zh) * 2011-04-04 2014-02-05 帕雷特沃兹有限公司 托盘
EP3094567A4 (fr) * 2014-01-15 2017-08-16 CHEP Technology Pty Limited Palette en plastique avec plancher supérieur monocouche présentant des pièces rapportées en son sein et procédés associés
CN114873026A (zh) * 2017-08-08 2022-08-09 集保科技有限公司 托板及其制造方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013135591A1 (fr) 2012-03-13 2013-09-19 Julius Pretterebner Palette de transport, en particulier europalette
DE102013215284A1 (de) 2013-08-02 2015-02-05 Julius Pretterebner Transportpalette, insbesondere Europalette

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DE1926053A1 (de) * 1969-05-22 1970-11-26 Karl Muench Ohg Transportpalette
DE2101535A1 (de) * 1971-01-14 1972-09-07 Götz, Wilhelm, 7961 Alttann Transportpalette
DE7102665U (fr) * 1971-01-26 1972-06-15 Muench K
DE2224398A1 (de) * 1971-05-18 1972-11-23 Shinton, Derek Alfred, Machen, Monmouthshire (Großbritannien) Verbundartikel, beispielsweise Transportpalette
DE7133741U (de) * 1971-09-03 1972-05-10 Irmler F Transport-Palette
US3880092A (en) * 1972-07-21 1975-04-29 Johns Manville Rigid foamed plastic pallet
GB1540679A (en) * 1976-03-29 1979-02-14 Nippon Petrochemicals Co Ltd Thermoplastic resin pallet or pallet part with antiskid member and method for the manufacture thereof
US4399975A (en) * 1981-01-12 1983-08-23 Trimarco Emil P Support structure for mounting heavy objects
JPS6225027A (ja) * 1985-07-25 1987-02-03 Aisin Seiki Co Ltd 射出成形装置
FR2612153B1 (fr) * 1987-03-11 1989-10-20 Anisa Sa Palette destinee au transport et au stockage de pieces ou de recipients, et son procede de fabrication
US5123359A (en) * 1990-12-03 1992-06-23 T.H.E.M. Of New York, Inc. Heavy duty pallet and method of making same
BE1005103A3 (nl) * 1991-07-03 1993-04-20 Acopal Nv Palet en kontrole-inrichting voor paletten.
DE9410091U1 (de) * 1994-06-22 1994-08-11 Müller Formenbau GmbH, 66687 Wadern Rutschfeste-Hygiene-Kunststoff-Palette

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1012662A3 (nl) * 1999-05-04 2001-02-06 Hemeldonck Emiel Van Palet en werkwijze voor het vervaardigen van zulk palet.
BE1013280A3 (nl) * 2000-02-10 2001-11-06 Didak Injection Nv Accessoire voor een palet, palet hiermee uitgerust en werkwijze voor het aanbrengen van dergelijk accessoire op een palet.
EP1203723A1 (fr) * 2000-11-03 2002-05-08 Kirschsieper, Rolf Dispositif de transport et de stockage
WO2005044679A1 (fr) * 2003-11-07 2005-05-19 Niels Graae Palettes/objets en bois revetus utilises dans des productions a exigence d'hygiene
US7419101B2 (en) 2004-09-13 2008-09-02 Omron Corporation Physical distribution management apparatus, physical distribution management pallet and physical distribution management system
EP1635290B1 (fr) * 2004-09-13 2012-08-01 Omron Corporation Appareil , palette et système de gestion de distribution physique
EP2431289A1 (fr) * 2010-09-17 2012-03-21 STILL GmbH Palette de transport
CN103562079A (zh) * 2011-04-04 2014-02-05 帕雷特沃兹有限公司 托盘
CN102627163A (zh) * 2012-04-01 2012-08-08 南京赛旺科技发展有限公司 组合式木塑托盘底铺板
EP3094567A4 (fr) * 2014-01-15 2017-08-16 CHEP Technology Pty Limited Palette en plastique avec plancher supérieur monocouche présentant des pièces rapportées en son sein et procédés associés
CN114873026A (zh) * 2017-08-08 2022-08-09 集保科技有限公司 托板及其制造方法
CN114873026B (zh) * 2017-08-08 2025-01-07 集保科技有限公司 托板及其制造方法

Also Published As

Publication number Publication date
EP0727360A3 (fr) 1997-03-05
DE19505241A1 (de) 1996-08-22

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