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WO1996003322A1 - Palette en plastique moule composee de deux parties - Google Patents

Palette en plastique moule composee de deux parties Download PDF

Info

Publication number
WO1996003322A1
WO1996003322A1 PCT/NZ1995/000064 NZ9500064W WO9603322A1 WO 1996003322 A1 WO1996003322 A1 WO 1996003322A1 NZ 9500064 W NZ9500064 W NZ 9500064W WO 9603322 A1 WO9603322 A1 WO 9603322A1
Authority
WO
WIPO (PCT)
Prior art keywords
pallet
male
halves
connectors
female connectors
Prior art date
Application number
PCT/NZ1995/000064
Other languages
English (en)
Inventor
Robert William Campbell
Original Assignee
Pallenz Limited
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 Pallenz Limited filed Critical Pallenz Limited
Priority to AU29924/95A priority Critical patent/AU2992495A/en
Publication of WO1996003322A1 publication Critical patent/WO1996003322A1/fr

Links

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
    • B65D2519/00034—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
    • B65D2519/00049—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
    • B65D2519/00258—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
    • B65D2519/00288—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
    • B65D2519/00313—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
    • B65D2519/00313—Overall construction of the base surface
    • B65D2519/00363—Overall construction of the base surface grid type, e.g. perforated plate
    • 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
    • B65D2519/00402—Integral, e.g. ribs
    • B65D2519/00407—Integral, e.g. ribs on the load supporting 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
    • B65D2519/00258—Overall construction
    • B65D2519/00398—Overall construction reinforcements
    • B65D2519/00402—Integral, e.g. ribs
    • B65D2519/00412—Integral, e.g. ribs on the base 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
    • B65D2519/00547—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
    • B65D2519/00557—Structures connecting the constitutive elements of the pallet to each other, i.e. load supporting surface, base surface and/or separate spacer without separate auxiliary elements
    • 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
    • B65D2519/00557—Structures connecting the constitutive elements of the pallet to each other, i.e. load supporting surface, base surface and/or separate spacer without separate auxiliary elements
    • B65D2519/00562—Structures connecting the constitutive elements of the pallet to each other, i.e. load supporting surface, base surface and/or separate spacer without separate auxiliary elements chemical connection, e.g. glued, welded, sealed

Definitions

  • This invention relates to a method of manufacturing a pallet.
  • pallet is one which is well known to the transportation and storage industry. In this specification, this term is used to describe a support base which allows for access of fork lift tines inside or under the support base so that a fork lift can lift the support base and any product supported by that base.
  • Wooden pallets have a short life on account of their lack of durability. Further, many countries will not accept wooden pallets for quarantine reasons as bacteria and other contaminants may reside in the wood. Other problems with wooden pallets is that the nails used tend to puncture bags and spill product placed on the pallet. A further problem is that wooden pallets have a tendency to rot and increase in weight due to water absorption.
  • Plastic pallets are known which overcome a number of the problems associated with wooden pallets.
  • plastic pallets presently made have problems of their own.
  • plastic pallets are formed by a process known as injection moulding. With injection moulding, there is provided a mould into which molten plastic is injected under pressure.
  • injection moulding With injection moulding, there is provided a mould into which molten plastic is injected under pressure.
  • the cost of producing a mould of a size of a pallet is extremely expensive.
  • injection moulding machines that actually have the capability to apply sufficient force to hold a pallet size mould together when it is being injected with fluid plastics material under pressure.
  • a method of manufacturing a pallet characterised by the steps of a) manufacturing two pallet halves, and b) joining the pallet halves together to create a complete pallet.
  • a method of manufacturing a pallet whereby two halves are created and then joined together overcomes a number with problems of the prior art.
  • plastic moulding may be used to create the pallet halves. For example, if a pallet is made with two separate halves, smaller moulds are required. Thus, there is provided a means by which a pallet may be injection moulded with smaller loads and less expensive machines than previously thought possible.
  • Another advantage of the present invention is that it lends itself to the manufacture of pallets using rotational moulding, which as discussed is less expensive than injection moulding.
  • the pallets may be moulded in such a way so that the inner halves of the pallets when joined together create an aperture through the pallet which is suitable for the insertion of fork lift tines.
  • This overcomes one of the problems with rotational moulding of pallets as there is no need to design a system whereby cores need to be pulled out from within inside the whole pallet thus limiting the pallet design.
  • Another advantage of the present invention when applied to rotationally moulded pallets is that design features such as strengthening ribs and the like can be readily built into each half of the pallet adding considerable strength to the pallet than if it were to be moulded in a whole.
  • the pallet may be made from any one of a variety of materials, however in preferred embodiments the pallet is made from medium density polyethylene. This material is impact resistant as well as easy and inexpensive to rotationally mould. Further, this material is very compatible to a freezer environment as it does not become brittle.
  • the average wall thickness of the polyethylene will be approximately 5mm, however it should be appreciated that this dimension can change when desired.
  • the pallet halves may be joined together by a variety of means.
  • the pallet halves may have their internal surfaces joined together with low frequency vibration welding. Unfortunately, for articles as large as pallets it is very difficult to input sufficient energy for this method of joining to be successful.
  • An alternative method of joining the pallets is to use adhesive between the two pallet halves. Unfortunately, if the inner halves of the pallets are smooth, just using adhesive is an ineffective joining method. This is because there is minimal surface area on which the adhesive can act and the shear forces applied to the pallets is usually in the line of the plane in which the adhesive is applied.
  • the two pallet halves are joined together using male/female connectors
  • This aspect of the present invention has a number of advantages over other possible means by which the pallet halves can be joined.
  • a male/female connection means that the connection is perpendicular to the shear force plane most commonly encountered by pallets and therefore is more resistive to same. This is obvious when one considers that the male connector is surrounded by material of the female connector which adds considerable more strength to the join than if just adhesive had been used.
  • a further advantage of male/female connectors is that this method facilitates alignment of the pallet halves which may not be as readily achievable if just pure adhesive was used to line up two smooth pallet halves.
  • male/female connectors can in combination be a design feature which gives additional supporting strength to the pallet by forming vertical pillars within the pallet structure.
  • male/female connectors can be the sole method by which the pallet halves can be joined, it is envisaged that in some embodiments of the present invention adhesive is used as well within the male/female connectors and perhaps on other parts of the pallet halves.
  • a suitable adhesive for this purpose as been found by the applicant is a polyurethane sealant and adhesive. This adhesive is moisture cured.
  • One of the advantages of using adhesive in combination with the male/female connectors is that the adhesive is protected inside the body of the pallet by the walls of the female connector.
  • the halves are plastic welded together.
  • the material for plastic welding can be colour matched to the pallet and therefore the plastic welded pallet is aesthetically more pleasing than the adhesive described above which presently only comes in three colours. If the plastic welding is the same material as the pallet, for instance polyethylene, then the whole pallet can be recycled.
  • the use of plastic welding instead of steel fasteners has a number of advantages as the addition of post production steel can wear against the plastic material of the pallet causing perforations.
  • the design of the male/female connectors may come in a variety of forms.
  • the male/female connectors are circular in cross-section, this assists in alignment of the connectors and accommodates shrinkage which will be uniform over a circular cross-section. Further, the applicant has found that by making the male connectors sufficiently long and thin to be flexible, misalignment between the male/female connectors can be accommodated. In one embodiment of the present invention the length of the male connectors is 50mm and the plastic between 4 and 5mm.
  • the male connector is in the form of a tapered lug and the female connector is complimentarily shaped.
  • the use of tapered lugs makes the male and female connectors easy to produce using the rotational moulding method as this enables easy removal of the mould.
  • Another advantage of using a taper is that the halves are more easily located with respect to each other as the narrow end of the taper can be guided gently into the wider base of the female connector.
  • Yet another advantage of the taper is that it is a way of distributing the forces on the pallet transmitted to the male connector.
  • the tops of the male connectors are rounded. This is because under extreme loads, there will be less chance of the male connectors perforating the pallet.
  • all of the female connectors are on the lower half of the pallet so that they can absorb the forces being placed on them by the male connectors connected to the top half of the pallet which carries the load.
  • This is not necessarily possible with all rotationally moulded designs. This is because to make a pallet of a certain size, the mould used has a certain volumetric capacity and the mould insets which create the female connectors take up room within the mould. This means that less plastics powder can be introduced which can lead to less strength in the pallet half.
  • the male connectors are comparatively small integers with respect to the overall size of the pallet as rotational moulding lends itself to be more accurate with such smaller integers. This is because undulations can occur over integers having a larger span. Unfortunately, this means that the male connectors could be more easily broken away from the pallet half.
  • the localised groupings may be associated with platforms on the internal surfaces of the pallet halves.
  • the platforms may take the form of legs and provide the spacing between the pallet halves required to achieve the apertures through which the fork lift tines can be passed.
  • the platforms referred to above may take a number of forms.
  • the platforms themselves may provide a separate means by which the pallet halves can be connected.
  • the platforms may themselves act as male/female connectors.
  • the connectors may have a peripheral sleeve which forms a tongue and groove effect with the corresponding platform on the other half of the pallet.
  • One such advantage is hygiene. If there is provided an overlap between two platforms on opposing halves then this provides an additional barrier to the ingress to micro-organisms. This is important as pallets are often used to transport food and medical supplies and thus a high standard of hygiene is required.
  • Another advantage is that the broader expanse of plastic which forms the interconnecting platforms can add to the aesthetics of the pallet.
  • the pallet has sufficient strength to carry the loads placed on it.
  • one method of transferring the static load to ground is to have a number of "kiss offs" in the pallet.
  • the top half of the pallet may have grooves moulded into the upper and lower surfaces so that inside the pallet top half the upper and lower surfaces touch or kiss off. Not only does this add to the overall stiffness and strength of the pallet, but also the top and bottom surface are kept the same distance from each other.
  • grooves in the bottom half can harbour moisture.
  • kiss offs can be arranged so as to transfer the static load from the top surface through to the bottom surface and to the ground.
  • moulding for the male/female connectors may extend from the bottom surface of the bottom half of the pallet to the top surface of the bottom half. Not only does this add strength to the bottom of the pallet, but also provides a path through which the static load can be transferred from the top half of the pallet through to the ground. This obviates the chance of the plastic buckling.
  • the pallet may have additional slots moulded into it which in rotational moulding means that there is provided additional vertical walls within the halves of the pallet. These walls can stop flexing and the slots can provide a handle for carrying the pallet.
  • the slots can also act as shock absorber flexing within itself so that the load is not transferred across the pallet. This avoids cracking of the plastics material making up the pallet.
  • Figure 1 is a diagrammatic perspective view of a complete pallet in accordance with one embodiment of the present invention.
  • Figure 2 is a diagrammatic cross-sectional view of a group of male/female connectors in accordance with one embodiment of the present invention.
  • Figure 3 is a diagrammatic plan view of a pallet half in accordance with one embodiment of the present invention
  • Figure 4 is a cross-sectional view of a pallet in accordance with the present invention
  • Figure 1 is a diagrammatic perspective view of a full pallet generally indicated by arrow 1 which has been manufactured in accordance with one embodiment of the present invention.
  • the pallet 1 is comprised of two halves, an upper half 2 and a lower half 3.
  • the halves 2 and 3 have been connected together by using male/female connectors as illustrated in Figures 2 and 3.
  • the structure of the pallet 1 is such that there are a number of apertures 4 through which the tines of a fork lift can pass enabling the pallet 1 to be readily lifted.
  • pillars 5 which space apart the halves 2 and 3 of the pallet enabling the apertures 4 to be formed.
  • Figure 2 is a perspective view of a pillar 5.
  • the pillar 5 is slightly tapered and has a platform 6 on which other male connectors 7 and female connectors 8.
  • Around the peripheral edge of the platform 6 is a sleeve 9.
  • the male connectors 7 are a tapered lug having a rounded top which as described earlier in the specification prevents penetration of the male connector 7 into the pallet 1 if excessive force is loaded onto the pallet 1.
  • the female connector 8 is an aperture (not clearly shown) which is of a complimentary shape to the male connector 7.
  • Figure 3 is a plan view of the bottom half 3 of the pallet 1 showing possible placement of the pillars 5.
  • the top half 2 of the pallet 1 may have complimentary pillars 5 with the associated groupings of male connectors 7 and female connectors 8 so that it can be fitted directly onto the bottom half 3 to make a secure fit.
  • the sleeve 9 on the pillars 5 may also complimentarily fit forming an overlap which is both aesthetic and hygienic in addition to adding strength to the pallet structure.
  • the female connectors 8 are filled with adhesive which helps in holding the pallet 1 together.
  • weight may be placed on top of the pallet 7 until the adhesive is cured.
  • FIG. 4 is a cross-sectional view of a pallet in accordance with one embodiment of the present invention. Construction of the pillars 5, male connectors 7 and female connectors 8 can be clearly seen. What can also be seen is the “kiss offs” between the top surface 10 of the top half 2 and the bottom surface 11 of the top half 2. Also the kiss offs between the mail connector 7 and the female connectors 8 can also be clearly seen. These kiss offs enables the static load on top of the top pallet half 2 to be transferred through the hollow of the pallet 1 down to the bottom surface 12 of the bottom half 3. Aspects of the present invention have been described by way of example only and it should be appreciated that modifications and additions may be made thereto without departing from the scope of the appended claims.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pallets (AREA)

Abstract

Palette (1) composée de deux moitiés supérieure (2) et inférieure (3). Ces moitiés (2 et 3) ont été accouplées au moyen de raccords respectifs (7/8) mâles/femelles. Les raccords mâles (7) sont constitués par une tige conique possédant une extrémité arrondie, qui empêche le raccord mâle (7) de pénétrer dans la palette (1), si une force excessive est appliquée sur la palette (1). Le raccord femelle (8) est constitué par une ouverture, dont la forme est complémentaire à celle du raccord mâle (7). Des rainures peuvent être moulées dans les surfaces supérieure et inférieure de la moitié supérieure de la palette, de sorte que lesdites surfaces se touchent ou s'effleurent à l'intérieur de ladite moitié supérieure. Cela non seulement augmente la rigidité et la résistance globales de la palette, mais permet également de conserver une distance égale entre la surface supérieure et la surface inférieure. Les points d'effleurement peuvent être situés de sorte que la charge statique soit transférée depuis la surface supérieure dans la surface inférieure et dans le sol. Ainsi on améliore la résistance de la base de la palette, mais on crée également un passage par lequel la charge statique peut être transférée depuis la moitié supérieure de la palette jusqu'au sol. Cela permet également d'éviter les risques de déformation plastique.
PCT/NZ1995/000064 1994-07-22 1995-07-20 Palette en plastique moule composee de deux parties WO1996003322A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU29924/95A AU2992495A (en) 1994-07-22 1995-07-20 Two-piece moulded plastic pallet

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NZ26407494 1994-07-22
NZ264074 1994-07-22

Publications (1)

Publication Number Publication Date
WO1996003322A1 true WO1996003322A1 (fr) 1996-02-08

Family

ID=19924876

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NZ1995/000064 WO1996003322A1 (fr) 1994-07-22 1995-07-20 Palette en plastique moule composee de deux parties

Country Status (2)

Country Link
AU (1) AU2992495A (fr)
WO (1) WO1996003322A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0847928A1 (fr) * 1996-12-13 1998-06-17 TriEnda Corporation Palette pliable à deux étages
GB2412107A (en) * 2004-03-19 2005-09-21 Pvaxx Res & Dev Ltd Rotationally moulded pallets
GB2412106A (en) * 2004-03-19 2005-09-21 Pvaxx Res & Dev Ltd Rotationally moulded double pallet
GB2412108A (en) * 2004-03-19 2005-09-21 Pvaxx Res & Dev Ltd Rotationally moulded pallet
US9138945B2 (en) 2005-04-26 2015-09-22 Paxxal Inc. Load carrying apparatus and method of manufacture

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3667403A (en) * 1970-06-11 1972-06-06 Pack Rite Packaging & Crating Pallet
US3677201A (en) * 1969-12-17 1972-07-18 Keyes Fibre Co Pallet
AU7207674A (en) * 1974-06-17 1976-02-12 Houtindustrie De Phoenix B V A pallet of synthetic material
DE2461711A1 (de) * 1974-12-28 1976-07-08 Werz Furnier Sperrholz Doppeldeck-flachpalette
DE2733457A1 (de) * 1977-07-25 1979-02-15 Hans Juergen Ing Grad Bruns Stapelplatte aus verstaerktem kunststoff
GB2166708A (en) * 1984-11-14 1986-05-14 Pinckney Molded Plastics Pallet
AU2144888A (en) * 1987-08-26 1989-03-02 Wilhelm Andreas Cool Pallets
EP0400640A1 (fr) * 1989-06-02 1990-12-05 Remaplan Anlagenbau Gmbh Palette en plastique
EP0539698A1 (fr) * 1991-10-26 1993-05-05 Peter Stegmaier Palette avec plaque de support et patins

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US3677201A (en) * 1969-12-17 1972-07-18 Keyes Fibre Co Pallet
US3667403A (en) * 1970-06-11 1972-06-06 Pack Rite Packaging & Crating Pallet
AU7207674A (en) * 1974-06-17 1976-02-12 Houtindustrie De Phoenix B V A pallet of synthetic material
DE2461711A1 (de) * 1974-12-28 1976-07-08 Werz Furnier Sperrholz Doppeldeck-flachpalette
DE2535907A1 (de) * 1974-12-28 1977-02-24 Werz Furnier Sperrholz Doppeldeck-flachpalette
DE2733457A1 (de) * 1977-07-25 1979-02-15 Hans Juergen Ing Grad Bruns Stapelplatte aus verstaerktem kunststoff
GB2166708A (en) * 1984-11-14 1986-05-14 Pinckney Molded Plastics Pallet
AU2144888A (en) * 1987-08-26 1989-03-02 Wilhelm Andreas Cool Pallets
EP0400640A1 (fr) * 1989-06-02 1990-12-05 Remaplan Anlagenbau Gmbh Palette en plastique
EP0539698A1 (fr) * 1991-10-26 1993-05-05 Peter Stegmaier Palette avec plaque de support et patins

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0847928A1 (fr) * 1996-12-13 1998-06-17 TriEnda Corporation Palette pliable à deux étages
US5950546A (en) * 1996-12-13 1999-09-14 Trienda Corporation Double deck fold-up pallet
GB2412107A (en) * 2004-03-19 2005-09-21 Pvaxx Res & Dev Ltd Rotationally moulded pallets
GB2412106A (en) * 2004-03-19 2005-09-21 Pvaxx Res & Dev Ltd Rotationally moulded double pallet
GB2412108A (en) * 2004-03-19 2005-09-21 Pvaxx Res & Dev Ltd Rotationally moulded pallet
GB2412106B (en) * 2004-03-19 2008-11-26 Pvaxx Res & Dev Ltd Load-carrying apparatus
GB2412108B (en) * 2004-03-19 2008-12-24 Pvaxx Res & Dev Ltd Load-carrying apparatus and methods of manufacture
GB2412107B (en) * 2004-03-19 2008-12-24 Pvaxx Res & Dev Ltd Load-carrying apparatus
EP2347965A1 (fr) * 2004-03-19 2011-07-27 Pvaxx Research and Development Limited Appareil de support de charge et procédés de fabrication
US9138945B2 (en) 2005-04-26 2015-09-22 Paxxal Inc. Load carrying apparatus and method of manufacture

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