EP2930121B1 - Plastic pallet for receiving flexible bulk containers - Google Patents

Plastic pallet for receiving flexible bulk containers Download PDF

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Publication number
EP2930121B1
EP2930121B1 EP14164381.7A EP14164381A EP2930121B1 EP 2930121 B1 EP2930121 B1 EP 2930121B1 EP 14164381 A EP14164381 A EP 14164381A EP 2930121 B1 EP2930121 B1 EP 2930121B1
Authority
EP
European Patent Office
Prior art keywords
tunnel
ribs
vault
plastic pallet
crossing
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.)
Active
Application number
EP14164381.7A
Other languages
German (de)
French (fr)
Other versions
EP2930121A1 (en
Inventor
Stefan Müller
Richard Metzler
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.)
Cabka & Co KG GmbH
Original Assignee
Cabka & Co KG GmbH
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
Priority to SI201430057A priority Critical patent/SI2930121T1/en
Priority to RS20160474A priority patent/RS54887B1/en
Application filed by Cabka & Co KG GmbH filed Critical Cabka & Co KG GmbH
Priority to DK14164381.7T priority patent/DK2930121T3/en
Priority to PT141643817T priority patent/PT2930121T/en
Priority to PL14164381.7T priority patent/PL2930121T3/en
Priority to HUE14164381A priority patent/HUE028401T2/en
Priority to ES14164381.7T priority patent/ES2583068T3/en
Priority to EP14164381.7A priority patent/EP2930121B1/en
Priority to US14/682,203 priority patent/US9440770B2/en
Publication of EP2930121A1 publication Critical patent/EP2930121A1/en
Application granted granted Critical
Publication of EP2930121B1 publication Critical patent/EP2930121B1/en
Priority to CY20161100615T priority patent/CY1117717T1/en
Priority to HRP20161053TT priority patent/HRP20161053T1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D19/00Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D19/0004Rigid pallets without side walls
    • B65D19/0006Rigid pallets without side walls the load supporting surface being made of a single element
    • B65D19/003Rigid pallets without side walls the load supporting surface being made of a single element forming discontinuous or non-planar contact surfaces
    • B65D19/0032Rigid pallets without side walls the load supporting surface being made of a single element forming discontinuous or non-planar contact surfaces the base surface being made of a single element
    • B65D19/0036Rigid pallets without side walls the load supporting surface being made of a single element forming discontinuous or non-planar contact surfaces the base surface being made of a single element forming discontinuous or non-planar contact surfaces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D19/00Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D19/0004Rigid pallets without side walls
    • B65D19/0006Rigid pallets without side walls the load supporting surface being made of a single element
    • B65D19/003Rigid pallets without side walls the load supporting surface being made of a single element forming discontinuous or non-planar contact surfaces
    • B65D19/0032Rigid pallets without side walls the load supporting surface being made of a single element forming discontinuous or non-planar contact surfaces the base surface being made of a single element
    • B65D19/0034Rigid pallets without side walls the load supporting surface being made of a single element forming discontinuous or non-planar contact surfaces the base surface being made of a single element forming a continuous plane contact surface
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D19/00Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D19/38Details or accessories
    • B65D19/385Frames, corner posts or pallet converters, e.g. for facilitating stacking of charged pallets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2519/00Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004Details relating to pallets
    • B65D2519/00009Materials
    • B65D2519/00014Materials for the load supporting surface
    • B65D2519/00034Plastic
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2519/00Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004Details relating to pallets
    • B65D2519/00009Materials
    • B65D2519/00049Materials for the base surface
    • B65D2519/00069Plastic
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2519/00Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004Details relating to pallets
    • B65D2519/00258Overall construction
    • B65D2519/00263Overall construction of the pallet
    • B65D2519/00268Overall construction of the pallet made of one piece
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2519/00Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004Details relating to pallets
    • B65D2519/00258Overall construction
    • B65D2519/00283Overall construction of the load supporting surface
    • B65D2519/00288Overall construction of the load supporting surface made of one piece
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2519/00Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004Details relating to pallets
    • B65D2519/00258Overall construction
    • B65D2519/00313Overall construction of the base surface
    • B65D2519/00318Overall construction of the base surface made of one piece
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2519/00Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004Details relating to pallets
    • B65D2519/00258Overall construction
    • B65D2519/00313Overall construction of the base surface
    • B65D2519/00328Overall construction of the base surface shape of the contact surface of the base
    • B65D2519/00343Overall construction of the base surface shape of the contact surface of the base contact surface being substantially in the form of a panel
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2519/00Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004Details relating to pallets
    • B65D2519/00258Overall construction
    • B65D2519/00313Overall construction of the base surface
    • B65D2519/00328Overall construction of the base surface shape of the contact surface of the base
    • B65D2519/00348Overall construction of the base surface shape of the contact surface of the base contact surface of other form
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2519/00Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004Details relating to pallets
    • B65D2519/00258Overall construction
    • B65D2519/00398Overall construction reinforcements
    • B65D2519/00402Integral, e.g. ribs
    • B65D2519/00407Integral, e.g. ribs on the load supporting surface
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2519/00Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004Details relating to pallets
    • B65D2519/00258Overall construction
    • B65D2519/00398Overall construction reinforcements
    • B65D2519/00402Integral, e.g. ribs
    • B65D2519/00412Integral, e.g. ribs on the base surface
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2519/00Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004Details relating to pallets
    • B65D2519/00736Details
    • B65D2519/00776Accessories for manipulating the pallet
    • B65D2519/00796Guiding means for fork-lift
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2519/00Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004Details relating to pallets
    • B65D2519/00736Details
    • B65D2519/00805Means for facilitating the removal of the load
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2519/00Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004Details relating to pallets
    • B65D2519/00736Details
    • B65D2519/0081Elements or devices for locating articles
    • B65D2519/00815Elements or devices for locating articles on the pallet
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2519/00Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004Details relating to pallets
    • B65D2519/00736Details
    • B65D2519/00935Details with special means for nesting or stacking
    • B65D2519/0094Details with special means for nesting or stacking nestable

Definitions

  • the invention relates to a plastic pallet for receiving flexible bulk containers.
  • a plastic pallet for receiving flexible bulk containers.
  • Such a pallet comprises at least a pair of tunnel-shaped receptacles for the prongs of the fork of a forklift, the tunnel-shaped receptacles connecting two opposite sides of the plastic pallet.
  • Flexible bulk containers also known as FIBCs ( Flexible Intermediate Bulk Containers ) - are used for the transport and storage of loose goods.
  • loose goods can be found in many areas, in the building materials include, for example, sand, cement or earth to flour in the food sector, cereal grains, etc., and in the processing industry, for example, plastic granules.
  • the flexible bulk containers can be made of a variety of materials and are characterized by the fact that they are flexible containers, the container so have no rigid shape as boxes or boxes, but resilient container boundaries or walls. It is more or less baggy containers in various forms, with or without openings for emptying or filling. The size of the containers and the material used for them is chosen depending on the material to be filled.
  • the widespread wooden pallets which include the so-called europallets, are only partially suitable.
  • the flexible bulk material containers can be damaged by the rough wooden surface, protruding wood splinters etc.
  • bulk goods containers with a high flexibility of the side walls in the filled state adapt to the shape of the pallet, ie, due to its own weight, the bulk goods container bulges downwards between the slats of the wooden pallet or hangs through, which, when entering with a forklift in the worst case may cause the bulk material container to be damaged and torn open.
  • a suitable for the transport of flexible bulk containers range is, for example, in the US 2013/0136573 A1 described and offered by the company BHA - Bulk Handling Australia .
  • the in the US 2013/0136573 A1 described pallet is made of plastic by injection molding. Compared to wood, plastic has the advantage that it can be cast or sprayed in almost any shape, the surfaces are also smoother, which is advantageous for the transport of flexible bulk containers.
  • the pallet has on its underside tunnel-shaped receptacles which connect two opposite sides of the plastic pallet - plastic pallets for flexible bulk containers generally have a square shape which defines the bearing surface, so that the tunnel-shaped receptacles thus two parallel sides of such a square, the Opposite each other, connect.
  • the pallet shows four tunnel-shaped receptacles, which are arranged in pairs in a crosswise direction.
  • each side of the square-shaped pallet is connected to the opposite side by tunnel-shaped receptacles.
  • These tunnel-shaped openings are designed so that the forks of the fork of a forklift can drive into these openings and receive the pallet.
  • elevations are formed, which stiffen the structure of the pallet. If only one tunnel pair is used, the elevations run transversely to the tunnel direction from the sides of the pallet to the other side.
  • the elevations each connect two adjoining tunnel-shaped receptacles, they then run in such a way that they enclose a right angle in the central area.
  • the carrier system can be connected to the bulk container in various ways, also a non-separable version of bulk container and carrier system will be described.
  • the carrier system consists of a plate-shaped bottom area with a square base area on which the container is or can be arranged. Below the plate-shaped bottom region, half-tubular receptacles for the tines of a forklift truck are arranged. These recordings are preferably made of cardboard, but can also be made of plastic.
  • the half-tube-shaped receptacles are completely closed to the floor, so that these pallets are not nestable, their stacking in the empty state so compared to nestable pallets claimed significantly more space.
  • only two shots can be attached to the bottom or top of the base surface so that the pallet can not be picked up from all sides by a forklift truck.
  • the base plate may also have a resealable flap.
  • a plastic pallet which has tunnel-shaped receptacles for the tines of the fork of a forklift.
  • the tunnel floor is formed by bottom ribs and the tunnel vault by vault ribs.
  • Floor and vault ribs are each spaced apart by air gaps.
  • the ribs of the bottom are offset relative to those of the arch offset from each other, so that a bottom rib is below an air gap of the arch, and vice versa.
  • the bottom ribs are plate-shaped and significantly more extended in the retraction of the forklift as the vault ribs.
  • the pallet comprises four tunnel-shaped receptacles, which are arranged crosswise, wherein the tunnel ribs are arranged only at the edge in two of the receptacles.
  • the crossing region is formed by a covering this base plate, over which no vault ribs are arranged.
  • US 4 145 974 A is a similar range in which the vault ribs are formed arcuate described. However, this is not made of plastic, but of a thin wooden core, which is coated with paper. Also in the EP 0 521 478 A1 and the GB 2 103 573 A similar pallets are described, which are also not made of plastic.
  • the object of the invention is to further develop a plastic pallet of the type described above such that the stability of the pallet and the protection stored on the pallet, flexible bulk goods container is increased, wherein in a stack of loaded pallets a bulk material container which is placed on the plastic pallet, should be protected from damage by a forklift.
  • each tunnel-shaped receptacle on a tunnel floor which is formed from spaced apart by bottom air gaps bottom ribs.
  • each tunnel-shaped receptacle has a tunnel arch formed of vault ribs spaced from one another by vault air gaps.
  • bottom ribs and ribs are each offset and dimensioned so that a bottom rib is located below a vault air gap and a rib above a bottom gap.
  • no vault rib is arranged, and in the region which is covered by a vault rib, no bottom rib is arranged, if the reference direction is the normal of a base plate which corresponds to the bearing surface for the bulk material container , used.
  • the plastic pallet comprises four tunnel-shaped receptacles, which are arranged in pairs in a crosswise manner, and the crossing region of each two tunnel-shaped receptacles comprises a base plate covering the crossing area, into which at least one intersection air gap is introduced, wherein above the at least an intersection air gap is arranged a crossing vault rib.
  • the intersection air gap with tunnel longitudinal axes of the tunnel vault crossing there can each include an equal angle, ie 45 °.
  • the tunnel side walls can also be continued in the intersection area they will reinforce the structure, and in particular the crossing vault ribs, where no forklift tines enter.
  • vault ribs and bottom ribs can be designed so that they cover the opposite air gaps with almost exact fit or with a slight underfitting, so that maximum stability is ensured.
  • the vault ribs narrower than the bottom air gaps and the bottom ribs narrower than the vault air gaps.
  • the width of the bottom ribs is in no case greater than the width of a vaulted air gap arranged above it, and the width of a vault rib is in no case greater than the width of a bottom air gap arranged underneath, since otherwise several similar plastic pallets of this type would not be nestable.
  • the vault ribs are preferably formed arcuate, since the absence of edges, the risk of damage to be transported flexible bulk goods container is reduced.
  • Bottom ribs and vault ribs each have two ends with which they are preferably connected to tunnel sidewalls, i. each end is connected to a tunnel side wall and in the tunnel-shaped receptacle the tunnel side walls face each other transversely to the tunnel longitudinal direction.
  • the - preferably vertical to the base plate or support surface trained - tunnel side walls increase the stability of the pallet structure on the one hand, but they also serve as a guide for the tines of the fork of the forklift and prevent them from getting caught in the air gaps, if the forklift is not exactly straight enters the tunnel-shaped recordings.
  • Each plastic pallet comprises four tunnel-shaped receptacles, which are arranged crosswise in pairs. This increases flexibility in use, since the plastic pallet, which is generally formed with a square base plate, can now be received by all four sides of a forklift.
  • the tunnel-shaped receptacles are arranged crosswise in pairs, ie a first pair of tunnel-shaped receptacles is aligned parallel to each other and connects two parallel sides of the plastic pallet, the second pair is arranged at right angles to the first pair and connects the other two, parallel to each other Pages of the plastic pallet.
  • a first, not belonging to the invention possibility is to form the crossing region of each two tunnel-shaped recordings by a cross-section covering the bottom plate, over which no vault ribs are arranged.
  • Another possibility which is likewise not part of the invention, is to form the crossing area through the arching area covering the crossing area, under which no base plate is arranged.
  • Both the vault ribs and the crossing vault ribs may have thickenings in the area below the tunnel side walls, which further increases the stability of the structure.
  • the obliquely arranged crossing vault ribs also prevents the flexible bulk material container from expanding into the channel, that is to say from the tunnel area which serves to guide the tine of the fork of a forklift, and possibly from being damaged by the tine.
  • the area between the tunnel-shaped receptacles can be permanently closed, for example with a grid-like structure, so that the pallet can be manufactured in one piece.
  • Such an embodiment is advantageous, for example, if smaller bulk goods containers - such as cement bags - are to be transported on the pallet.
  • Such big bags may, for example, have closable openings and be stored on the pallet so that this opening points downwards. The closure of the big bag can then be released through the opening, so that the bulk goods container, standing on the pallet, can be emptied.
  • the opening is closed with a reversibly removable closure, so it is made in two parts.
  • a reversibly removable closure so it is made in two parts. In this way it is possible to transport both bulk containers such as big bags with openings pointing downwards as well as smaller bulk containers or big bags without downward pointing Openings, as the closure prevents the flexible bulk containers from being dragged to the floor and being damaged.
  • the closure may be connected via a clip connection to the edges of the opening, which may be of any shape, provided it is confined to the area of the at least two tunnel-shaped receptacles.
  • the closure can also be designed as a hinged flap and be connected via a hinge at the edge of the opening with the plastic pallet, said hinge can also be designed so that the flap can be completely removed from the plastic pallet.
  • the latter variant can be connected to a clip connection on the opposite side of the hinge to the hinge, magnetic closures, closures with hooks and eyes or similar. are conceivable variants, but this requires the use of foreign materials, whereas a pure clip connection can be integrated into the molds for the pallet and the closure.
  • the closure can also be placed loosely from above on the opening when bulk containers are transported without openings.
  • the vault ribs towards the inside of the tunnel preferably flat, i. horizontal or parallel to the base plate extending - formed pads for the tines of a forklift.
  • the requirements are thus designed so that they come to rest during the insertion of a forklift in the tunnel-shaped shots and the subsequent lifting of the pallet - preferably flat - on the also flat tops of the tines of the fork of the forklift, whereby selective loads of the ribs are avoided and the forces that are exerted by the pressure of the loaded pallet on the vault ribs or constraints and the back pressure of the tines in this area are best distributed.
  • the vault ribs may be configured as hollow ribs open to the inside of the tunnel, wherein stiffening elements are formed in the hollow ribs, and wherein at least a part of the stiffening elements form a flat, i. horizontally extending underside - this may be, for example, an edge of a stiffening element - as a support for the tines of the fork of a forklift.
  • the vault ribs can also be designed in a closed form with flat supports.
  • a facet serving as a drive-in aid for a fork-lift truck is formed on the outer sides of such ribs, which form an end opening of a tunnel-shaped receptacle, ie the corresponding area is chamfered and the tunnel opening widened in this area to the outside or tapers inwards. This prevents damage to the plastic pallet by careless picking up by a forklift.
  • Fig. 1 a is a plastic pallet 1 for receiving flexible bulk containers in the plan view shown from above.
  • Fig. 1b the same pallet is shown in a perspective view obliquely from above.
  • the plastic pallet 1 includes tunnel-shaped receptacles for the prongs of the fork of a forklift, the tunnel-shaped receptacles connecting two opposing sides 2 of the plastic pallet 1.
  • the plastic pallet 1 comprises four tunnel-shaped receptacles which are arranged in pairs in a crosswise arrangement. Thus, all four sides 2 are connected by two tunnel-shaped receptacles, so that a forklift from each of the sides 2 can enter into the tunnel-shaped receptacles.
  • the tunnel-shaped receptacles themselves are arranged on a base plate 3, which forms the bottom of the plastic pallet, is generally aligned horizontally and basically a square shape - for example, according to the shape of the bulk material container to be transported - has.
  • the base plate 3 is flattened by means of chamfers 4 in the areas in which each two sides 2 collide. In this way damage to bulk containers by sharp corners can be prevented when the loaded pallets are stacked and / or transported.
  • Each tunnel-shaped receptacle has a tunnel bottom, which is formed from bottom ribs 6 spaced from one another by bottom air gaps 5. Since four tunnel-shaped receptacles are arranged crosswise in pairs, and the crossing areas, which will be discussed below, in the present case occupy a relatively large space compared to the dimensions of the plastic pallet 1, each tunnel-shaped receptacle here has only one bottom rib 6. In plastic pallets 1 with larger side dimensions more than one bottom rib 6 are formed on the pallet, as well as in a design with narrower ribs.
  • the bottom air gaps 5, by which the bottom ribs 6 are spaced apart from each other and in the present example, the bottom rib 6 is spaced from the crossing regions of the tunnel-shaped receptacles are in Fig. 2 to recognize, here shows Fig. 2a a plan view of the bottom of the plastic pallet Fig. 1 and Fig. 2b a perspective view of the underside of the plastic pallet 1 from Fig.1 ,
  • Each of the tunnel-shaped receptacles also has a tunnel arch, which is formed from vault ribs 8 spaced from each other by vault air gaps 7.
  • the vault ribs 8 are formed here arcuate. However, they may also be rectangular or polygonal shaped, but an arcuate configuration offers the advantage of dispensing with edges that could potentially damage or overburden a flexible bulk material container stored on the pallet. Rounded surfaces do not provide such points of attack.
  • a particular feature of the plastic pallet 1 is that in each of the tunnel-shaped receptacles bottom ribs 6 and ribs 8 are arranged and dimensioned offset from one another such that a bottom rib 6 is arranged in each case below a vault air gap 7 and a rib 8 each above a bottom air gap 5.
  • the ribs can each be slightly narrower than the air gaps, over which or under which they are arranged, are executed, this lightweight Unterpassung allows better stackability.
  • the plastic pallets 1 are nestable by the particular arrangement of the ribs and air gaps, although the tunnel-shaped receptacles have a bottom structure which improves the stackability of loaded pallets.
  • the crossing region of two tunnel-shaped receptacles comprises a base plate 9 covering the intersection area, into which at least one intersection air gap 10 is introduced, wherein a crossing vault rib 11 is arranged above the at least one intersection air gap 10.
  • the intersection air gap can be made slightly larger than the width of the crossing vault rib 11, which facilitates the stacking of the pallets.
  • the intersection air gap 10 closes and thus also the crossing vault rib 11 each with the two longitudinal axes of the crossing there tunnel vault the same angle. Since the tunnel vault intersect at a right angle with a square-shaped pallet, the intersection air gap 10 with the longitudinal axes therefore each encloses an angle of 45 °.
  • an opening 12 for emptying a flexible bulk material container is arranged between the tunnel-shaped receptacles.
  • the opening is closed by a reversibly removable closure 13. This can be connected via a clip connection on several sides of the opening 12 or via a hinge with the remaining plastic pallet 1, in the latter case, the closure does not have to be designed removable, but, for example, hinged. On the opposite side of the hinge, for example, again a clip connection or a snap hook can be formed.
  • the vault ribs 8 also flat, horizontally or parallel to the base plate 3 extending supports 14 are formed for the tines of the fork of a forklift towards the inside of the tunnel. This increases the stability during transport of the loaded pallet, since the tines are then in contact not only at their edges with the ribs 8, but over a larger, flat area, so that the forces are distributed more evenly and the load on the plastic pallet 1 is reduced .
  • the vault ribs 8 may be configured as hollow ribs open to the inside of the tunnel, in which stiffening elements 15 are formed, with at least a portion of the stiffening elements forming a flat, e.g. horizontally extending underside - here, for example, the lower edges of the stiffening elements - to rest on the tines of the fork of a forklift.
  • the bottom ribs 6 and the vault ribs 8 also each have ends with which they are connected to tunnel side walls 17. This increases on the one hand the stability of the construction, on the other hand, the tunnel side walls 17 also serve as a guide for the tines of the fork of the forklift and also prevent the flexible bulk container in the tunnel-shaped receptacle spreads by compensating movements of the bulk material in the container where it passes through the Tines of the forklift could be charged.
  • the ribs 8 and the crossing vault ribs 11 set on the base plate 3 are also thickened, which further increases the stability of the construction.

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Description

Gebiet der ErfindungField of the invention

Die Erfindung betrifft eine Kunststoffpallette zur Aufnahme von flexiblen Schüttgutbehältern. Eine solche Palette umfasst mindestens ein Paar tunnelförmiger Aufnahmen für die Zinken der Gabel eines Gabelstaplers, wobei die tunnelförmigen Aufnahmen zwei einander gegenüberliegende Seiten der Kunststoffpalette verbinden.The invention relates to a plastic pallet for receiving flexible bulk containers. Such a pallet comprises at least a pair of tunnel-shaped receptacles for the prongs of the fork of a forklift, the tunnel-shaped receptacles connecting two opposite sides of the plastic pallet.

Stand der TechnikState of the art

Flexible Schüttgutbehälter - auch als FIBC (flexible intermediate bulk container) bezeichnet - werden für den Transport und die Lagerung loser Güter verwendet. Solche losen Güter finden sich in vielen Bereichen, im Baustoffbereich zählen beispielsweise Sand, Zement oder Erde dazu, im Nahrungsmittelbereich Mehl, Getreidekörner etc., und in der verarbeitenden Industrie beispielsweise Kunststoffgranulate. Die flexiblen Schüttgutbehälter können aus den verschiedensten Materialen gefertigt sein und zeichnen sich dadurch aus, dass es sich um flexible Behälter handelt, die Behälter also keine starre Form haben wie Kästen oder Kartons, sondern nachgiebige Behälterbegrenzungen bzw. Wände. Es handelt sich mehr oder weniger um sackartige Behältnisse in den verschiedensten Formen, mit oder ohne Öffnungen zum Entleeren bzw. Befüllen. Die Größe der Behälter und das für sie verwendete Material wird in Abhängigkeit von dem einzufüllenden Gut gewählt. So werden für Zement mit einem hohen spezifischen Gewicht kleinere Säcke, oft auch aus mehreren Lagen starkem Papier verwendet. Beim Transport von Nahrungsmitteln muss darauf geachtet werden, dass zwischen den zu transportierenden Nahrungsmitteln und der Behälterinnenwand keine chemischen Reaktionen auftreten, die Behälterinnenwände also nahrungsmittelecht sind. Für den Transport leichter Güter mit einem geringen spezifischen Gewicht, welche die Verwendung großer Schüttgutcontainer erlaubt, haben sich im Stand der Technik sogenannten bulk bags, die auch als big bags bezeichnet werden, etabliert.Flexible bulk containers - also known as FIBCs ( Flexible Intermediate Bulk Containers ) - are used for the transport and storage of loose goods. Such loose goods can be found in many areas, in the building materials include, for example, sand, cement or earth to flour in the food sector, cereal grains, etc., and in the processing industry, for example, plastic granules. The flexible bulk containers can be made of a variety of materials and are characterized by the fact that they are flexible containers, the container so have no rigid shape as boxes or boxes, but resilient container boundaries or walls. It is more or less baggy containers in various forms, with or without openings for emptying or filling. The size of the containers and the material used for them is chosen depending on the material to be filled. Thus, for cement with a high specific gravity smaller sacks, often also of several layers of strong paper are used. When transporting foodstuffs, care must be taken to ensure that no chemical reactions occur between the food to be transported and the inner wall of the container so that the inner walls of the container are food-safe. For the transport of light goods with a low specific weight, which allows the use of large bulk containers, so-called bulk bags, which are also referred to as big bags , have become established in the prior art.

Zum Transport solcher flexiblen Schüttgutbehälter sind die weitverbreiteten Holzpaletten, zu denen auch die sogenannten Europaletten zählen, nur bedingt geeignet. Zum einen können die flexiblen Schüttgutbehälter durch die raue Holzoberfläche, abstehende Holzsplitter etc. beschädigt werden. Zum anderen passen sich Schüttgutbehälter mit einer hohen Flexibilität der Seitenwände im befüllten Zustand an die Form der Palette an, d.h., aufgrund seines Eigengewichtes beult sich der Schüttgutbehälter zwischen den Latten der Holzpalette nach unten aus bzw. hängt durch, was beim Einfahren mit einem Gabelstapler im schlimmsten Fall dazu führen kann, dass der Schüttgutbehälter beschädigt und aufgerissen wird.To transport such flexible bulk containers, the widespread wooden pallets, which include the so-called europallets, are only partially suitable. On the one hand, the flexible bulk material containers can be damaged by the rough wooden surface, protruding wood splinters etc. On the other hand, bulk goods containers with a high flexibility of the side walls in the filled state adapt to the shape of the pallet, ie, due to its own weight, the bulk goods container bulges downwards between the slats of the wooden pallet or hangs through, which, when entering with a forklift in the worst case may cause the bulk material container to be damaged and torn open.

Für den Transport und die Lagerung solcher flexiblen Schüttgutbehälter ist man daher bemüht, andere Lösungen zu finden.For the transport and storage of such flexible bulk containers one therefore endeavors to find other solutions.

Eine für den Transport flexibler Schüttgutbehälter geeignete Palette wird beispielsweise in der US 2013/0136573 A1 beschrieben und von der Firma BHA - Bulk Handling Australia angeboten. Die in der US 2013/0136573 A1 beschriebene Palette ist aus Kunststoff im Spritzguss gefertigt. Gegenüber Holz hat Kunststoff den Vorteil, dass er in nahezu beliebige Formen gegossen oder gespritzt werden kann, die Oberflächen sind zudem glatter, was für den Transport von flexiblen Schüttgutbehältern vorteilhaft ist. Die Palette weist an ihrer Unterseite tunnelförmige Aufnahmen auf, die zwei einander gegenüberliegende Seiten der Kunststoffpalette verbinden - Kunststoffpaletten für flexible Schüttgutbehälter haben im allgemeinen eine quadratische Form, welche die Auflagefläche definiert, so dass die tunnelförmigen Aufnahmen also zwei parallel verlaufende Seiten eines solchen Quadrates, die einander gegenüberliegen, verbinden. In einer anderen Ausgestaltung zeigt die Palette vier tunnelförmige Aufnahmen, welche jeweils paarweise über Kreuz angeordnet sind. Somit ist jede Seite der quadratförmigen Palette mit der jeweils gegenüberliegenden Seite durch tunnelförmige Aufnahmen verbunden. Diese tunnelförmigen Öffnungen sind so konzipiert, dass die Zinken der Gabel eines Gabelstaplers in diese Öffnungen hineinfahren und die Palette aufnehmen können. Zwischen den tunnelförmigen Aufnahmen, die nach unten offen sind, befindet sich ein zentraler, geschlossener Bereich. Auf den tunnelförmigen Ausbildungen sind Erhebungen ausgebildet, welche die Struktur der Palette versteifen. Wird nur ein Tunnelpaar verwendet, so verlaufen die Erhebungen quer zu Tunnelrichtung von der Seiten der Palette bis zur anderen Seite. Für den Fall der Palette mit zwei Paaren von tunnelförmigen Aufnahmen, also insgesamt vier tunnelförmigen Aufnahmen, verbinden die Erhebungen jeweils zwei aneinandergrenzende tunnelförmige Aufnahmen, sie verlaufen dann so, dass sie im zentralen Bereich einen rechten Winkel einschließen. Dadurch, dass die tunnelförmigen Aufnahmen nach unten geöffnet sind, ist die in der US 2013/0136573 A1 beschriebene Kunststoffpalette nestbar, d.h. beim Stapeln mehrer gleichartiger Paletten können die Paletten ineinander gestapelt werden, so dass die Gesamthöhe eine Stapels aus N Paletten wesentlich geringer als das N-fache der einzelnen Höhe einer Palette ist.A suitable for the transport of flexible bulk containers range is, for example, in the US 2013/0136573 A1 described and offered by the company BHA - Bulk Handling Australia . The in the US 2013/0136573 A1 described pallet is made of plastic by injection molding. Compared to wood, plastic has the advantage that it can be cast or sprayed in almost any shape, the surfaces are also smoother, which is advantageous for the transport of flexible bulk containers. The pallet has on its underside tunnel-shaped receptacles which connect two opposite sides of the plastic pallet - plastic pallets for flexible bulk containers generally have a square shape which defines the bearing surface, so that the tunnel-shaped receptacles thus two parallel sides of such a square, the Opposite each other, connect. In another embodiment, the pallet shows four tunnel-shaped receptacles, which are arranged in pairs in a crosswise direction. Thus, each side of the square-shaped pallet is connected to the opposite side by tunnel-shaped receptacles. These tunnel-shaped openings are designed so that the forks of the fork of a forklift can drive into these openings and receive the pallet. Between the tunnel-shaped receptacles, which are open at the bottom, there is a central, closed area. On the tunnel-shaped formations elevations are formed, which stiffen the structure of the pallet. If only one tunnel pair is used, the elevations run transversely to the tunnel direction from the sides of the pallet to the other side. In the case of the pallet with two pairs of tunnel-shaped receptacles, ie a total of four tunnel-shaped receptacles, the elevations each connect two adjoining tunnel-shaped receptacles, they then run in such a way that they enclose a right angle in the central area. The fact that the tunnel-shaped shots are open at the bottom, which is in the US 2013/0136573 A1 nestable plastic pallet described, ie when stacking several similar pallets, the pallets stacked so that the total height of a stack of N pallets is substantially less than N times the single height of a pallet.

Diese Nestbarkeit ist jedoch nachteilig für den Fall, dass mehrere solcher Paletten mit darauf befindlichen, beladenen Schüttgutbehältern, gestapelt werden sollen: In gleicher Weise, wie vorangehend für die Holzpaletten beschrieben, drücken die Kunststoffpaletten auf die darunter liegenden flexiblen Schüttbehälter, welche sich somit in die nach unten offenen Aufnahmen ausbeulen bzw. ausdehnen können, da sie auf Belastung durch Druck bis zu einem gewissen Grad flexibel reagieren können. Beim Einfahren in die nach unten offenen tunnelförmigen Aufnahmen mit den Zinken der Gabel eines Gabelstaplers kann dies somit zur Beschädigung des unter der Palette befindlichen Schüttgutbehälters führen. Zudem wird insgesamt auch die Stabilität bei der Stapelung mehrer beladener Paletten übereinander beeinträchtigt.However, this nestability is disadvantageous in the event that several such pallets with thereon, loaded bulk containers to be stacked: In the same manner as described above for the wooden pallets, press the plastic pallets on the underlying flexible bulk containers, which thus in the can bulge or expand downwardly open receptacles, as they can react flexibly to pressure to a certain extent. When entering the downwardly open tunnel-shaped receptacles with the tines of the fork of a forklift, this can thus damage the bulk goods container located below the pallet. In addition, the stability in the stacking of several loaded pallets is also affected on top of each other.

Dies wird bei dem in der WO 2010/151367 A1 und von der Firma Sonoco unter der Bezeichnung FirmaLoad™ vertriebenen System vermieden. In der WO 2010/151367 A1 sind verschiedene Ausführungen eines Schüttgutcontainers sowie eines Trägersystems für Schüttgutcontainer beschrieben, wobei das Trägersystem mit dem Schüttgutcontainer auf verschiedene Weise verbunden werden kann, auch eine nicht voneinander trennbare Ausführung aus Schüttgutcontainer und Trägersystem wird beschrieben. Das Trägersystem besteht aus einem plattenförmigen Bodenbereich mit quadratischer Basisfläche, auf welcher der Container angeordnet ist bzw. werden kann. Unterhalb des plattenförmigen Bodenbereichs sind halbröhrenförmige Aufnahmen für die Zinken eines Gabelstaplers angeordnet. Diese Aufnahmen sind vorzugsweise aus Pappe gefertigt, können aber auch aus Plastik gefertigt sein. Die halbröhrenförmigen Aufnahmen sind zum Boden hin vollständig verschlossen, so dass diese Paletten nicht nestbar sind, ihre Stapelung im Leerzustand also verglichen mit nestbaren Paletten deutlich mehr Platz beansprucht. Konzeptionell bedingt lassen sich auch nur zwei Aufnahmen an der Unterseite bzw. Oberseite der Basisfläche anbringen, so dass die Palette nicht von allen Seiten von einem Gabelstapler aufgenommen werden kann. Zur Entleerung des Schüttgutbehälters kann die Basisplatte außerdem eine wiederverschließbare Klappe aufweisen.This will be in the case of WO 2010/151367 A1 and system sold by Sonoco under the name FirmaLoad ™ . In the WO 2010/151367 A1 various embodiments of a bulk container and a carrier system for bulk containers are described, the carrier system can be connected to the bulk container in various ways, also a non-separable version of bulk container and carrier system will be described. The carrier system consists of a plate-shaped bottom area with a square base area on which the container is or can be arranged. Below the plate-shaped bottom region, half-tubular receptacles for the tines of a forklift truck are arranged. These recordings are preferably made of cardboard, but can also be made of plastic. The half-tube-shaped receptacles are completely closed to the floor, so that these pallets are not nestable, their stacking in the empty state so compared to nestable pallets claimed significantly more space. Conceptually, only two shots can be attached to the bottom or top of the base surface so that the pallet can not be picked up from all sides by a forklift truck. For emptying the bulk goods container, the base plate may also have a resealable flap.

In der FR 1 603 898 A wird eine Kunststoffpalette beschrieben, welche tunnelförmige Aufnahmen für die Zinken der Gabel eines Gabelstaplers aufweist. Der Tunnelboden wird durch Bodenrippen und das Tunnelgewölbe durch Gewölberippen gebildet. Boden- und Gewölberippen sind jeweils untereinander durch Luftspalte beabstandet. Die Rippen des Bodens sind gegenüber denen des Gewölbes versetzt zueinander angeordnet, so dass eine Bodenrippe unter einem Luftspalt des Gewölbes liegt, und umgekehrt. Dabei sind die Bodenrippen plattenförmig ausgebildet und in Einfahrrichtung des Gabelstaplers deutlich mehr ausgedehnt als die Gewölberippen. Entsprechend einer Ausgestaltung umfasst die Palette vier tunnelförmige Aufnahmen, die über Kreuz angeordnet sind wobei die Tunnelrippen bei zweien der Aufnahmen nur am Rand angeordnet sind. Der Kreuzungsbereich wird durch eine diesen abdeckende Bodenplatte gebildet, über dem keine Gewölberippen angeordnet sind. In der US 4 145 974 A wird eine ähnliche Palette, bei der die Gewölberippen bogenförmig ausgebildet sind, beschrieben. Diese ist jedoch nicht aus Kunststoff, sondern aus einem dünnen Holzkern, welcher mit Papier überzogen ist. Auch in der EP 0 521 478 A1 und der GB 2 103 573 A werden ähnliche Paletten beschrieben, die jedoch ebenfalls nicht aus Kunststoff sind.In the FR 1 603 898 A a plastic pallet is described, which has tunnel-shaped receptacles for the tines of the fork of a forklift. The tunnel floor is formed by bottom ribs and the tunnel vault by vault ribs. Floor and vault ribs are each spaced apart by air gaps. The ribs of the bottom are offset relative to those of the arch offset from each other, so that a bottom rib is below an air gap of the arch, and vice versa. The bottom ribs are plate-shaped and significantly more extended in the retraction of the forklift as the vault ribs. According to one embodiment, the pallet comprises four tunnel-shaped receptacles, which are arranged crosswise, wherein the tunnel ribs are arranged only at the edge in two of the receptacles. The crossing region is formed by a covering this base plate, over which no vault ribs are arranged. In the US 4 145 974 A is a similar range in which the vault ribs are formed arcuate described. However, this is not made of plastic, but of a thin wooden core, which is coated with paper. Also in the EP 0 521 478 A1 and the GB 2 103 573 A similar pallets are described, which are also not made of plastic.

Beschreibung der ErfindungDescription of the invention

Aufgabe der Erfindung ist es, eine Kunststoffpalette der Eingangs beschriebenen Art dahingehend weiterzuentwickeln, dass die Stabilität der Palette und der Schutz auf der Palette gelagerter, flexibler Schüttgutbehälter erhöht wird, wobei in einem Stapel von beladenen Paletten ein Schüttgutbehälter, der auf der Kunststoffpalette abgestellt ist, vor Beschädigungen durch einen Gabelstapler geschützt sein soll.The object of the invention is to further develop a plastic pallet of the type described above such that the stability of the pallet and the protection stored on the pallet, flexible bulk goods container is increased, wherein in a stack of loaded pallets a bulk material container which is placed on the plastic pallet, should be protected from damage by a forklift.

Bei einer Kunststoffpalette der eingangs beschriebenen Art weist eine jede tunnelförmige Aufnahme einen Tunnelboden auf, welcher aus voneinander durch Bodenluftspalte beabstandete Bodenrippen gebildet wird. Außerdem weist jede tunnelförmige Aufnahme ein Tunnelgewölbe auf, welches aus voneinander durch Gewölbeluftspalte beabstandete Gewölberippen gebildet wird. In jeder tunnelförmigen Aufnahme sind Bodenrippen und Gewölberippen jeweils so versetzt zueinander angeordnet und bemessen, dass eine Bodenrippe unter einem Gewölbeluftspalt und eine Gewölberippe über einem Bodenspalt angeordnet ist. In dem Bereich, in welchem eine Bodenrippe angeordnet ist, ist also keine Gewölberippe angeordnet, und in dem Bereich, der von einer Gewölberippe bedeckt wird, ist keine Bodenrippe angeordnet, wenn man als Bezugsrichtung die Normale einer Basisplatte, die zur Auflagefläche für die Schüttgutbehälter korrespondiert, verwendet.In a plastic pallet of the type described above, each tunnel-shaped receptacle on a tunnel floor, which is formed from spaced apart by bottom air gaps bottom ribs. In addition, each tunnel-shaped receptacle has a tunnel arch formed of vault ribs spaced from one another by vault air gaps. In each tunnel-shaped receptacle, bottom ribs and ribs are each offset and dimensioned so that a bottom rib is located below a vault air gap and a rib above a bottom gap. In the region in which a bottom rib is arranged, therefore, no vault rib is arranged, and in the region which is covered by a vault rib, no bottom rib is arranged, if the reference direction is the normal of a base plate which corresponds to the bearing surface for the bulk material container , used.

Die oben genannte Aufgabe wird dadurch gelöst, dass die Kunststoffpalette vier tunnelförmige Aufnahmen umfasst, die jeweils paarweise über Kreuz angeordnet sind, und der Kreuzungsbereich je zweier tunnelförmiger Aufnahmen eine den Kreuzungsbereich abdeckende Bodenplatte umfasst, in welche mindestens ein Kreuzungsluftspalt eingebracht ist, wobei über dem mindestens einen Kreuzungsluftspalt eine Kreuzungsgewölberippe angeordnet ist. Dies erhöht die Stabilität der Lagerung erheblich, da die Schüttgutbehälter nun nicht mehr im Bereich der Ecken ausweichen können. Dabei kann der Kreuzungsluftspalt mit Tunnellängsachsen der sich dort kreuzenden Tunnelgewölbe jeweils einen gleichen Winkel, also 45°, einschließen. Die Tunnelseitenwände können dabei auch im Kreuzungsbereich so fortgesetzt werden, dass sie dort, wo keine Gabelstaplerzinken einfahren, die Struktur und insbesondere die Kreuzungsgewölberippen verstärken.The above object is achieved in that the plastic pallet comprises four tunnel-shaped receptacles, which are arranged in pairs in a crosswise manner, and the crossing region of each two tunnel-shaped receptacles comprises a base plate covering the crossing area, into which at least one intersection air gap is introduced, wherein above the at least an intersection air gap is arranged a crossing vault rib. This considerably increases the stability of the storage since the bulk material containers can no longer avoid the corners. In this case, the intersection air gap with tunnel longitudinal axes of the tunnel vault crossing there can each include an equal angle, ie 45 °. The tunnel side walls can also be continued in the intersection area they will reinforce the structure, and in particular the crossing vault ribs, where no forklift tines enter.

Dabei können Gewölberippen und Bodenrippen so ausgestaltet sein, dass sie jeweils nahezu passgenau oder mit geringer Unterpassung die gegenüberliegenden Luftspalte abdecken, so dass maximale Stabilität gewährleistet wird. Um die Stapelbarkeit etwas zu verbessern und den Materialverbrauch zu verringern, ist es jedoch auch möglich, die Gewölberippen schmaler als die Bodenluftspalte und die Bodenrippen schmaler als die Gewölbeluftspalte auszuführen. Entlang einer Tunnellängsachse ist also die Breite der Bodenrippen in keinem Fall größer als die Breite eines darüber angeordnete Gewölbeluftspalts, und die Breite einer Gewölberippe ist in keinem Fall größer als die Breite eines darunter angeordneten Bodenluftspalts, da ansonsten mehrere gleichartige Kunststoffpaletten dieser Art nicht nestbar wären.In this case, vault ribs and bottom ribs can be designed so that they cover the opposite air gaps with almost exact fit or with a slight underfitting, so that maximum stability is ensured. However, in order to improve the stackability somewhat and reduce the material consumption, it is also possible to make the vault ribs narrower than the bottom air gaps and the bottom ribs narrower than the vault air gaps. Along a tunnel longitudinal axis, therefore, the width of the bottom ribs is in no case greater than the width of a vaulted air gap arranged above it, and the width of a vault rib is in no case greater than the width of a bottom air gap arranged underneath, since otherwise several similar plastic pallets of this type would not be nestable.

Die Gewölberippen sind bevorzugt bogenförmig ausgebildet, da durch den Verzicht auf Kanten, die Gefahr einer Beschädigung des zu transportierenden flexiblen Schüttgutbehälters verringert wird.The vault ribs are preferably formed arcuate, since the absence of edges, the risk of damage to be transported flexible bulk goods container is reduced.

Bodenrippen und Gewölberippen weisen jeweils zwei Enden auf, mit denen sie bevorzugt mit Tunnelseitenwänden verbunden sind, d.h. jedes Ende ist mit einer Tunnelseitenwand verbunden und in der tunnelförmigen Aufnahme liegen die Tunnelseitenwände einander quer zur Tunnellängsrichtung gegenüber. Die - bevorzugt vertikal zur Basisplatte bzw. Auflagefläche ausgebildeten - Tunnelseitenwände erhöhen zum einen die Stabilität der Palettenstruktur, zum anderen dienen sie aber auch als Führung für die Zinken der Gabel des Gabelstaplers und verhindern ein Verhaken derselben in den Luftspalten, wenn der Gabelstapler nicht exakt gerade in die tunnelförmigen Aufnahmen einfährt. Grundsätzlich ist es aber auch möglich, die Gewölberippen und die Bodenrippen an ihren Enden statt mit einer Tunnelseitenwand mit kleinstmöglichem Materialaufwand bzw. nur über einen schmalen Steg zu verbinden.Bottom ribs and vault ribs each have two ends with which they are preferably connected to tunnel sidewalls, i. each end is connected to a tunnel side wall and in the tunnel-shaped receptacle the tunnel side walls face each other transversely to the tunnel longitudinal direction. The - preferably vertical to the base plate or support surface trained - tunnel side walls increase the stability of the pallet structure on the one hand, but they also serve as a guide for the tines of the fork of the forklift and prevent them from getting caught in the air gaps, if the forklift is not exactly straight enters the tunnel-shaped recordings. In principle, it is also possible to connect the vault ribs and the bottom ribs at their ends instead of a tunnel side wall with the least possible material expenditure or only over a narrow web.

Jede Kunststoffpalette umfasst vier tunnelförmige Aufnahmen, die jeweils paarweise über Kreuz angeordnet sind. Dies erhöht die Flexibilität im Einsatz, da die - in der Regel mit quadratischer Basisplatte ausgebildete - Kunststoffpalette nun von allen vier Seiten von einem Gabelstapler aufgenommen werden kann. Die tunnelförmigen Aufnahmen sind dabei jeweils paarweise über Kreuz angeordnet, d.h. ein erstes Paar tunnelförmiger Aufnahmen ist parallel zueinander ausgerichtet und verbindet zwei parallel verlaufende Seiten der Kunststoffpalette, das zweite Paar ist im rechten Winkel zum ersten Paar angeordnet und verbindet die beiden anderen, zueinander parallel verlaufenden Seiten der Kunststoffpalette. Jeweils eine tunnelförmige Aufnahme des einen Paares schließt mit zwei tunnelförmigen Aufnahmen des anderen Paars einen rechten Winkel ein, so dass es insgesamt vier Kreuzungsbereiche für je zwei tunnelförmige Aufnahmen gibt. Um einen solchen Kreuzungsbereich je zweier tunnelförmiger Aufnahmen zu gestalten, gibt es neben der bereits oben genannten Vorgehensweise weitere, verschiedene Möglichkeiten, um weiterhin die Nestbarkeit der Kunststoffpalette zu gewährleisten.Each plastic pallet comprises four tunnel-shaped receptacles, which are arranged crosswise in pairs. This increases flexibility in use, since the plastic pallet, which is generally formed with a square base plate, can now be received by all four sides of a forklift. The tunnel-shaped receptacles are arranged crosswise in pairs, ie a first pair of tunnel-shaped receptacles is aligned parallel to each other and connects two parallel sides of the plastic pallet, the second pair is arranged at right angles to the first pair and connects the other two, parallel to each other Pages of the plastic pallet. In each case a tunnel-shaped recording of the one pair closes with two tunnel-shaped recordings of the other pair a right angle, so that there are a total of four crossing areas for each two tunnel-shaped photographs. In order to design such an intersection area of each two tunnel-shaped receptacles, there are, in addition to the above-mentioned approach further, different ways to continue to ensure the nestability of the plastic pallet.

Eine erste, nicht zur Erfindung gehörige Möglichkeit besteht darin, den Kreuzungsbereich je zweier tunnelförmigen Aufnahmen durch eine den Kreuzungsbereich abdeckende Bodenplatte zu bilden, über welcher keine Gewölberippen angeordnet sind. Eine andere, ebenfalls nicht zur Erfindung gehörige Möglichkeit besteht darin, den Kreuzungsbereich durch den Kreuzungsbereich abdeckendes Gewölbe zu bilden, unter dem keine Bodenplatte angeordnet ist.A first, not belonging to the invention possibility is to form the crossing region of each two tunnel-shaped recordings by a cross-section covering the bottom plate, over which no vault ribs are arranged. Another possibility, which is likewise not part of the invention, is to form the crossing area through the arching area covering the crossing area, under which no base plate is arranged.

Sowohl die Gewölberippen als auch die Kreuzungsgewölberippen können dabei im Bereich unterhalb der Tunnelseitenwände Verdickungen aufweisen, was die Stabilität der Struktur weiter erhöht.Both the vault ribs and the crossing vault ribs may have thickenings in the area below the tunnel side walls, which further increases the stability of the structure.

Durch die schräg angeordneten Kreuzungsgewölberippen wird zudem verhindert, dass der flexible Schüttgutbehälter sich in den Kanal, das heißt in den Tunnelbereich, der zu Führung des Zinkens der Gabel eines Gabelstaplers dient, ausdehnt und möglicherweise durch den Zinken beschädigt wird.The obliquely arranged crossing vault ribs also prevents the flexible bulk material container from expanding into the channel, that is to say from the tunnel area which serves to guide the tine of the fork of a forklift, and possibly from being damaged by the tine.

Der Bereich zwischen den tunnelförmigen Aufnahmen kann permanent, beispielsweise mit einer gitterförmigen Struktur verschlossen sein, so dass die Palette einstückig gefertigt werden kann. Eine solche Ausführung ist beispielsweise vorteilhaft, wenn kleinere Schüttgutbehälter - wie beispielsweise Zementsäcke - auf der Palette transportiert werden sollen. Für große Schüttgutbehälter, insbesondere für die big bags, ist es jedoch vorteilhaft, in dem Bereich zwischen den mindestens zwei tunnelförmigen Aufnahmen eine Öffnung zur Entleerung des flexiblen Schüttgutbehälters vorzusehen. Solche big bags können beispielsweise verschließbare Öffnungen aufweisen und werden auf der Palette so gelagert, dass diese Öffnung nach unten zeigt. Der Verschluss des big bags kann dann durch die Öffnung hindurch gelöst werden, so dass der Schüttgutbehälter, auf der Palette stehend, entleert werden kann.The area between the tunnel-shaped receptacles can be permanently closed, for example with a grid-like structure, so that the pallet can be manufactured in one piece. Such an embodiment is advantageous, for example, if smaller bulk goods containers - such as cement bags - are to be transported on the pallet. However, for large bulk material containers, in particular for the big bags, it is advantageous to provide an opening for emptying the flexible bulk goods container in the area between the at least two tunnel-shaped receptacles. Such big bags may, for example, have closable openings and be stored on the pallet so that this opening points downwards. The closure of the big bag can then be released through the opening, so that the bulk goods container, standing on the pallet, can be emptied.

In einer besonders bevorzugten Ausführung ist die Öffnung jedoch mit einem reversibel abnehmbaren Verschluss verschlossen, ist also zweiteilig gefertigt. Auf diese Weise ist es möglich, sowohl solche Schüttgutbehälter wie big bags mit nach unten weisenden Öffnungen zu transportieren als auch kleinere Schüttgutbehälter oder big bags ohne nach unten weisende Öffnungen, da durch den Verschluss verhindert wird, dass die flexiblen Schüttgutbehälter auf den Boden schleifen und beschädigt werden.In a particularly preferred embodiment, however, the opening is closed with a reversibly removable closure, so it is made in two parts. In this way it is possible to transport both bulk containers such as big bags with openings pointing downwards as well as smaller bulk containers or big bags without downward pointing Openings, as the closure prevents the flexible bulk containers from being dragged to the floor and being damaged.

Zur Verbindung des Verschlusses mit der Kunststoffpalette gibt es mehrere Möglichkeiten. So kann der Verschluss beispielsweise über eine Clip-Verbindung mit den Rändern der Öffnung, welche jede beliebige Form haben kann, sofern sie auf den Bereich der mindestens zwei tunnelförmigen Aufnahme beschränkt ist, verbunden werden. Der Verschluss kann aber auch als abklappbare Klappe ausgestaltet sein und über ein Scharnier am Rand der Öffnung mit der Kunststoffpalette verbunden sein, wobei dieses Scharnier auch so konzipiert sein kann, dass die Klappe gänzlich von der Kunststoffpalette entfernt werden kann. Letztere Variante kann mit einer Clip-Verbindung auf der dem Scharnier gegenüberliegenden Seite der Öffnung verbunden werden, auch Magnetverschlüsse, Verschlüsse mit Haken und Ösen o.ä. sind denkbare Varianten, was jedoch den Einsatz von Fremdmaterialien erfordert, wohingegen eine reine Clip-Verbindung in die Formen für die Palette und den Verschluss integriert werden kann. Im einfachsten Fall kann der Verschluss auch lose von oben auf die Öffnung aufgelegt sein, wenn Schüttgutbehälter ohne Öffnungen transportiert werden.There are several possibilities for connecting the closure to the plastic pallet. For example, the closure may be connected via a clip connection to the edges of the opening, which may be of any shape, provided it is confined to the area of the at least two tunnel-shaped receptacles. The closure can also be designed as a hinged flap and be connected via a hinge at the edge of the opening with the plastic pallet, said hinge can also be designed so that the flap can be completely removed from the plastic pallet. The latter variant can be connected to a clip connection on the opposite side of the hinge to the hinge, magnetic closures, closures with hooks and eyes or similar. are conceivable variants, but this requires the use of foreign materials, whereas a pure clip connection can be integrated into the molds for the pallet and the closure. In the simplest case, the closure can also be placed loosely from above on the opening when bulk containers are transported without openings.

In einer weiteren bevorzugten Ausgestaltung sind in den Gewölberippen zur Innenseite des Tunnels hin - bevorzugt flache, d.h. horizontal bzw. parallel zur Basisplatte verlaufende - Auflagen für den Zinken eines Gabelstaplers ausgebildet. Die Auflagen sind also so ausgebildet, dass sie beim Einfahren eines Gabelstaplers in die tunnelförmigen Aufnahmen und beim anschließenden Anheben der Palette - bevorzugt flach - auf den ebenfalls flachen Oberseiten der Zinken der Gabel des Gabelstaplers zu liegen kommen, wodurch punktuelle Belastungen der Gewölberippen vermieden werden und die Kräfte, die durch den Druck der beladenen Palette auf die Gewölberippen bzw. Auflagen und dem Gegendruck der Zinken in diesem Bereich ausgeübt werden, bestmöglich verteilt werden.In a further preferred embodiment, in the vault ribs towards the inside of the tunnel, preferably flat, i. horizontal or parallel to the base plate extending - formed pads for the tines of a forklift. The requirements are thus designed so that they come to rest during the insertion of a forklift in the tunnel-shaped shots and the subsequent lifting of the pallet - preferably flat - on the also flat tops of the tines of the fork of the forklift, whereby selective loads of the ribs are avoided and the forces that are exerted by the pressure of the loaded pallet on the vault ribs or constraints and the back pressure of the tines in this area are best distributed.

Dies erhöht die Stabilität bei der Aufnahme und beim Transport einer beladenen Palette. Beispielsweise können die Gewölberippen als zur Innenseite des Tunnels offene Hohlrippen ausgestaltet sein, wobei in den Hohlrippen Versteifungselemente ausgebildet sind und wobei mindestens ein Teil der Versteifungselemente eine flache, d.h. horizontal verlaufende Unterseite - dies kann beispielsweise eine Kante eines Versteifungselements sein - als Auflage für den Zinken der Gabel eines Gabelstaplers aufweist. Die Gewölberippen können jedoch auch in geschlossener Form mit flächigen Auflagen ausgestaltet werden.This increases the stability when picking up and transporting a loaded pallet. For example, the vault ribs may be configured as hollow ribs open to the inside of the tunnel, wherein stiffening elements are formed in the hollow ribs, and wherein at least a part of the stiffening elements form a flat, i. horizontally extending underside - this may be, for example, an edge of a stiffening element - as a support for the tines of the fork of a forklift. However, the vault ribs can also be designed in a closed form with flat supports.

In einer weiteren bevorzugten Ausgestaltung schließlich sind an den Außenseiten solcher Gewölberippen, welche einen Endöffnung einer tunnelförmigen Aufnahme bilden - also sozusagen die Tunneleinfahrten - eine als Einfahrhilfe für einen Gabelstapler dienende Facette ausgebildet, d.h. der entsprechende Bereich ist angeschrägt und die Tunnelöffnung verbreitert sich in diesem Bereich nach außen bzw. verjüngt sich nach innen. Dies beugt Beschädigungen der Kunststoffpalette durch eine unachtsame Aufnahme durch einen Gabelstapler vor.Finally, in a further preferred embodiment, a facet serving as a drive-in aid for a fork-lift truck is formed on the outer sides of such ribs, which form an end opening of a tunnel-shaped receptacle, ie the corresponding area is chamfered and the tunnel opening widened in this area to the outside or tapers inwards. This prevents damage to the plastic pallet by careless picking up by a forklift.

Es versteht sich, dass die vorstehend genannten und die nachstehend noch zu erläuternden Merkmale nicht nur in den angegebenen Kombinationen, sondern auch in anderen Kombinationen oder in Alleinstellung einsetzbar sind, ohne den Rahmen der vorliegenden Erfindung zu verlassen.It is understood that the features mentioned above and those yet to be explained below can be used not only in the specified combinations but also in other combinations or alone, without departing from the scope of the present invention.

Nachfolgend wird die Erfindung beispielsweise anhand der beigefügten Zeichnungen, die auch erfindungswesentliche Merkmale offenbaren, noch näher erläutert.The invention will be explained in more detail for example with reference to the accompanying drawings, which also disclose characteristics essential to the invention.

Kurze Beschreibung der ZeichnungenBrief description of the drawings

Es zeigen

Fig. 1a, 1b
Ansichten einer Kunststoffpalette für flexible Schüttgutbehälter von oben,
Fig.2a, 2b
Ansichten der Kunststoffpalette von unten,
Fig.3
eine weitere Ausführung einer Kunststoffpalette in Ansicht von oben, und
Fig.4
zwei genestet gestapelte Kunststoffpaletten übereinander.
Show it
Fig. 1a, 1b
Views of a plastic pallet for flexible bulk containers from above,
2a, 2b
Views of the plastic pallet from below,
Figure 3
another embodiment of a plastic pallet in top view, and
Figure 4
two nested stacked plastic pallets on top of each other.

Ausführliche Beschreibung der ZeichnungenDetailed description of the drawings

In Fig. 1 a ist eine Kunststoffpalette 1 zur Aufnahme von flexiblen Schüttgutbehältern in der Draufsicht von oben gezeigt. In Fig. 1b ist dieselbe Palette in einer Perspektivansicht von schräg oben dargestellt. Die Kunststoffpalette 1 umfasst tunnelförmige Aufnahmen für die Zinken der Gabel eines Gabelstaplers, wobei die tunnelförmigen Aufnahmen zwei einander gegenüberliegender Seiten 2 der Kunststoffpalette 1 verbinden. Erfindungsgemäß umfasst die Kunststoffpalette 1 vier tunnelförmige Aufnahmen, die jeweils paarweise über Kreuz angeordnet sind. Somit werden alle vier Seiten 2 durch je zwei tunnelförmige Aufnahmen verbunden, so dass ein Gabelstapler von jeder der Seiten 2 in die tunnelförmigen Aufnahmen einfahren kann. Die tunnelförmigen Aufnahmen selbst sind auf einer Basisplatte 3 angeordnet, welche den Boden der Kunststoffpalette bildet, in der Regel horizontal ausgerichtet ist und grundsätzlich eine quadratische Form - beispielsweise entsprechend der Form der zu transportierenden Schüttgutbehälter - aufweist. Im vorliegenden Fall ist die Basisplatte 3 in den Bereichen, in denen je zwei Seiten 2 zusammenstoßen, mittels Fasen 4 abgeflacht. Auf diese Weise können Beschädigungen von Schüttgutbehältern durch spitze Ecken vorgebeugt werden, wenn die beladenen Paletten gestapelt und/oder transportiert werden.In Fig. 1 a is a plastic pallet 1 for receiving flexible bulk containers in the plan view shown from above. In Fig. 1b the same pallet is shown in a perspective view obliquely from above. The plastic pallet 1 includes tunnel-shaped receptacles for the prongs of the fork of a forklift, the tunnel-shaped receptacles connecting two opposing sides 2 of the plastic pallet 1. According to the invention, the plastic pallet 1 comprises four tunnel-shaped receptacles which are arranged in pairs in a crosswise arrangement. Thus, all four sides 2 are connected by two tunnel-shaped receptacles, so that a forklift from each of the sides 2 can enter into the tunnel-shaped receptacles. The tunnel-shaped receptacles themselves are arranged on a base plate 3, which forms the bottom of the plastic pallet, is generally aligned horizontally and basically a square shape - for example, according to the shape of the bulk material container to be transported - has. In the present case, the base plate 3 is flattened by means of chamfers 4 in the areas in which each two sides 2 collide. In this way damage to bulk containers by sharp corners can be prevented when the loaded pallets are stacked and / or transported.

Eine jede tunnelförmige Aufnahme weist einen Tunnelboden auf, welcher aus voneinander durch Bodenluftspalte 5 beabstandete Bodenrippen 6 gebildet wird. Da vier tunnelförmige Aufnahmen jeweils paarweise über Kreuz angeordnet sind, und die Kreuzungsbereiche, auf welche weiter unten noch eingegangen wird, im vorliegenden Fall einen relativ großen Raum einnehmen, verglichen mit den Abmessungen der Kunststoffpalette 1, hat jede tunnelförmige Aufnahme hier nur eine Bodenrippe 6. Bei Kunststoffpaletten 1 mit größeren Seitenmaßen sind an der Palette mehr als eine Bodenrippe 6 ausgebildet, ebenso bei einer Ausführung mit schmaleren Rippen. Die Bodenluftspalte 5, durch welche die Bodenrippen 6 voneinander beabstandet sind und im vorliegenden Beispiel die Bodenrippe 6 von den Kreuzungsbereichen der tunnelförmigen Aufnahmen beabstandet ist, sind in Fig. 2 zu erkennen, hier zeigt Fig. 2a eine Draufsicht auf die Unterseite der Kunststoffpalette aus Fig. 1 und Fig. 2b eine Perspektivansicht der Unterseite der Kunststoffpalette 1 aus Fig.1.Each tunnel-shaped receptacle has a tunnel bottom, which is formed from bottom ribs 6 spaced from one another by bottom air gaps 5. Since four tunnel-shaped receptacles are arranged crosswise in pairs, and the crossing areas, which will be discussed below, in the present case occupy a relatively large space compared to the dimensions of the plastic pallet 1, each tunnel-shaped receptacle here has only one bottom rib 6. In plastic pallets 1 with larger side dimensions more than one bottom rib 6 are formed on the pallet, as well as in a design with narrower ribs. The bottom air gaps 5, by which the bottom ribs 6 are spaced apart from each other and in the present example, the bottom rib 6 is spaced from the crossing regions of the tunnel-shaped receptacles are in Fig. 2 to recognize, here shows Fig. 2a a plan view of the bottom of the plastic pallet Fig. 1 and Fig. 2b a perspective view of the underside of the plastic pallet 1 from Fig.1 ,

Jede der tunnelförmigen Aufnahmen weist außerdem ein Tunnelgewölbe auf, welches aus voneinander durch Gewölbeluftspalte 7 beabstandete Gewölberippen 8 gebildet wird. Die Gewölberippen 8 sind hier bogenförmig ausgebildet. Sie können aber auch rechtwinklig oder polygonal geformt sein, eine bogenförmige Ausgestaltung bietet jedoch den Vorteil des Verzichts auf Kanten, die einen auf der Palette gelagerten flexiblen Schüttgutbehälter möglicherweise beschädigen oder zu stark belasten könnten. Abgerundete Oberflächen bieten solche Angriffspunkte nicht.Each of the tunnel-shaped receptacles also has a tunnel arch, which is formed from vault ribs 8 spaced from each other by vault air gaps 7. The vault ribs 8 are formed here arcuate. However, they may also be rectangular or polygonal shaped, but an arcuate configuration offers the advantage of dispensing with edges that could potentially damage or overburden a flexible bulk material container stored on the pallet. Rounded surfaces do not provide such points of attack.

Ein besonderes Kennzeichen der Kunststoffpalette 1 ist, dass in jeder der tunnelförmigen Aufnahmen Bodenrippen 6 und Gewölberippen 8 jeweils so versetzt zueinander angeordnet und bemessen sind, dass eine Bodenrippe 6 jeweils unter einen Gewölbeluftspalt 7 und eine Gewölberippe 8 jeweils über einem Bodenluftspalt 5 angeordnet ist. Die Rippen können dabei jeweils etwas schmaler als die Luftspalte, über denen bzw. unter denen sie angeordnet sind, ausgeführt werden, diese leichte Unterpassung ermöglicht eine bessere Stapelbarkeit. Insbesondere sind die Kunststoffpaletten 1 durch die besondere Anordnung der Rippen und Luftspalte nestbar, obwohl die tunnelförmigen Aufnahmen über eine Bodenstruktur verfügen, welche die Stapelbarkeit von beladenen Paletten verbessert.A particular feature of the plastic pallet 1 is that in each of the tunnel-shaped receptacles bottom ribs 6 and ribs 8 are arranged and dimensioned offset from one another such that a bottom rib 6 is arranged in each case below a vault air gap 7 and a rib 8 each above a bottom air gap 5. The ribs can each be slightly narrower than the air gaps, over which or under which they are arranged, are executed, this lightweight Unterpassung allows better stackability. In particular, the plastic pallets 1 are nestable by the particular arrangement of the ribs and air gaps, although the tunnel-shaped receptacles have a bottom structure which improves the stackability of loaded pallets.

Der Kreuzungsbereich zweier tunnelförmiger Aufnahmen umfasst eine den Kreuzungsbereich abdeckende Bodenplatte 9, in welche mindestens ein Kreuzungsluftspalt 10 eingebracht ist, wobei über dem mindestens einen Kreuzungsluftspalt 10 eine Kreuzungsgewölberippe 11 angeordnet ist. Auch hier kann der Kreuzungsluftspalt etwas größer als die Breite der Kreuzungsgewölberippe 11 ausgeführt werden, was das Stapeln der Paletten erleichtert. Vorteilhaft schließt der Kreuzungsluftspalt 10 und damit auch die Kreuzungsgewölberippe 11 mit den zwei Längsachsen der sich dort kreuzenden Tunnelgewölbe jeweils den gleichen Winkel ein. Da sich die Tunnelgewölbe bei einer Palette mit quadratischem Grundriss im rechten Winkel schneiden, schließt der Kreuzungsluftspalt 10 mit den Längsachsen daher jeweils einen Winkel von 45° ein.The crossing region of two tunnel-shaped receptacles comprises a base plate 9 covering the intersection area, into which at least one intersection air gap 10 is introduced, wherein a crossing vault rib 11 is arranged above the at least one intersection air gap 10. Again, the intersection air gap can be made slightly larger than the width of the crossing vault rib 11, which facilitates the stacking of the pallets. Advantageously, the intersection air gap 10 closes and thus also the crossing vault rib 11 each with the two longitudinal axes of the crossing there tunnel vault the same angle. Since the tunnel vault intersect at a right angle with a square-shaped pallet, the intersection air gap 10 with the longitudinal axes therefore each encloses an angle of 45 °.

In die Kunststoffpalette, die in den Fig. 1a, 1b, 2a, 2b gezeigt ist, ist zwischen den tunnelförmigen Aufnahmen eine Öffnung 12 zur Entleerung eines flexiblen Schüttgutbehälters angeordnet. In einer anderen, in Fig. 3 gezeigten Ausführung ist die Öffnung mit einem reversibel abnehmbaren Verschluss 13 verschlossen. Dieser kann über eine Clip-Verbindung an mehreren Seiten der Öffnung 12 oder über ein Scharnier mit der übrigen Kunststoffpalette 1 verbunden sein, wobei im letzteren Fall der Verschluss nicht abnehmbar ausgestaltet sein muss, sondern beispielsweise abklappbar. Auf der dem Scharnier gegenüberliegenden Seite kann beispielsweise wieder eine Clip-Verbindung oder ein Schnapphaken ausgebildet sein.In the plastic pallet in the Fig. 1a . 1b . 2a . 2 B is shown, an opening 12 for emptying a flexible bulk material container is arranged between the tunnel-shaped receptacles. In another, in Fig. 3 As shown, the opening is closed by a reversibly removable closure 13. This can be connected via a clip connection on several sides of the opening 12 or via a hinge with the remaining plastic pallet 1, in the latter case, the closure does not have to be designed removable, but, for example, hinged. On the opposite side of the hinge, for example, again a clip connection or a snap hook can be formed.

In den Gewölberippen 8 sind zur Innenseite des Tunnels hin außerdem flache, horizontal bzw. parallel zur Basisplatte 3 verlaufende Auflagen 14 für die Zinken der Gabel eines Gabelstaplers ausgebildet. Dies erhöht die Stabilität beim Transport der beladenen Palette, da die Zinken dann nicht nur an ihren Kanten mit den Gewölberippen 8 in Kontakt stehen, sondern über einen größeren, flachen Bereich, so dass die Kräfte gleichmäßiger verteilt werden und die Belastung der Kunststoffpalette 1 verringert wird. Beispielsweise können, wie hier gezeigt, die Gewölberippen 8 als zur Innenseite des Tunnels offene Hohlrippen ausgestaltet sein, in welchen Versteifungselemente 15 ausgebildet sind, wobei mindesteins ein Teil der Versteifungselemente eine flache, d.h. horizontal verlaufende Unterseite - hier beispielsweise die Unterkanten der Versteifungselemente - zur Auflage auf den Zinken der Gabel eines Gabelstaplers aufweist.In the vault ribs 8 also flat, horizontally or parallel to the base plate 3 extending supports 14 are formed for the tines of the fork of a forklift towards the inside of the tunnel. This increases the stability during transport of the loaded pallet, since the tines are then in contact not only at their edges with the ribs 8, but over a larger, flat area, so that the forces are distributed more evenly and the load on the plastic pallet 1 is reduced , For example, as shown here, the vault ribs 8 may be configured as hollow ribs open to the inside of the tunnel, in which stiffening elements 15 are formed, with at least a portion of the stiffening elements forming a flat, e.g. horizontally extending underside - here, for example, the lower edges of the stiffening elements - to rest on the tines of the fork of a forklift.

Schließlich weist die Kunststoffpalette 1 an den Außenseiten solcher Gewölberippen 8, die eine Endöffnung einer tunnelförmigen Aufnahme bilden, jeweils eine als Einfahrhilfe für einen Gabelstapler dienende Facette 16 auf, d.h. die Gewölberippen 8 sind sich von außen nach innen, d.h. von der Tunnelöffnung ins Innere hin, verjüngend ausgebildet.Finally, the plastic pallet 1 on the outer sides of such ribs 8, which form an end opening of a tunnel-shaped receptacle, each having a serving as a Einfahrhilfe for a forklift facet 16, i. the ribs 8 are from outside to inside, i. from the tunnel opening into the interior, tapered.

Die Bodenrippen 6 und die Gewölberippen 8 weisen außerdem jeweils Enden auf, mit denen sie mit Tunnelseitenwänden 17 verbunden sind. Dies erhöht zum einen die Stabilität der Konstruktion, zum anderen dienen die Tunnelseitenwände 17 auch als Führung für die Zinken der Gabel des Gabelstaplers und verhindern zudem, dass sich der flexible Schüttgutbehälter in die tunnelförmige Aufnahme mittels Ausgleichsbewegungen des Schüttguts im Behälter ausbreitet, wo er durch die Zinken des Gabelstaplers zustört werden könnte.The bottom ribs 6 and the vault ribs 8 also each have ends with which they are connected to tunnel side walls 17. This increases on the one hand the stability of the construction, on the other hand, the tunnel side walls 17 also serve as a guide for the tines of the fork of the forklift and also prevent the flexible bulk container in the tunnel-shaped receptacle spreads by compensating movements of the bulk material in the container where it passes through the Tines of the forklift could be charged.

Im unteren Bereich, in dem die Gewölberippen 8 und die Kreuzungsgewölberippen 11 auf der Basisplatte 3 ansetzen, sind die Rippen zudem verdickt, was die Stabilität der Konstruktion weiter erhöht.In the lower area, in which the ribs 8 and the crossing vault ribs 11 set on the base plate 3, the ribs are also thickened, which further increases the stability of the construction.

Eine solche Kunststoffpalette 1, wie sie vorangehend beschrieben wurde, ist zum einen nestbar, zum anderen ist sie mit auf ihr gelagerten Schüttgutbehältern stapelbar, und darüber hinaus ist ein Schüttgutbehälter, auf welchem die Palette im Rahmen einer Stapelung abgestellt ist, effektiv gegen Beschädigungen durch die Zinken der Gabel eines Gabelstaplers geschützt.Such a plastic pallet 1, as described above, on the one hand nestable, on the other hand, it is stackable with their stored bulk containers, and moreover, a bulk material container on which the pallet is placed in a stacking, effectively against damage by the Protected tines of the fork of a forklift.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
KunststoffpalettePlastic pallet
22
Seitepage
33
Basisplattebaseplate
44
Fasechamfer
55
Boden luftspalteBottom air gap
66
Bodenrippebottom rib
77
GewölbeluftspaltVaulted air gap
88th
Gewölberippevault rib
99
Bodenplattebaseplate
1010
KreuzungsluftspalteCrossing air gaps
1111
KreuzungsgewölberippeCrossing vault rib
1212
Öffnungopening
1313
Verschlussshutter
1414
Auflageedition
1515
Versteifungselementstiffener
1616
Facettefacet
1717
TunnelseitenwandTunnel sidewall

Claims (9)

  1. A plastic pallet (1) for taking up flexible bulk containers, comprising
    - At least one pair of four tunnel-shaped receptacles for the tines of the fork of a forklift apparatus, with the tunnel-shaped receptacles connecting two mutually opposite sides (2) of the plastic pallet (1), in which
    - each tunnel-shaped receptacle is provided with a tunnel bottom that is formed by bottom ribs (6) spaced from each other by bottom air gaps (5), and with a tunnel vault that is formed by vault ribs (8) spaced from each other by vault air gaps (7), and in which
    - the bottom ribs (6) and vault ribs (8) in the tunnel-shaped receptacle are staggered and dimensioned in such a way that a bottom rib (6) is arranged under a vault air gap (7), and a vault rib (8) above a bottom air gap (5), characterized in that
    - the plastic pallet (1) comprises four tunnel-shaped receptacles that are arranged in pairs crossing each other, and in that
    - a crossing area of two tunnel-shaped receptacles each comprises a bottom plate (9) that covers the crossing area and in which at least one crossing air gap (10) is provided, with a crossing vault rib (11) being arranged above the at least one crossing air gap (10).
  2. A plastic pallet (1) as claimed in Claim 1, characterized in that the vault ribs (8) are configured in an arched shape.
  3. A plastic pallet (1) as claimed in Claim 1 or 2, characterized in that the bottom ribs (6) and the vault ribs (8) have ends with which they are connected with tunnel sidewalls (17).
  4. A plastic pallet (1) as claimed in any one of Claims 1 through 3, characterized in that the crossing air gap (10) includes an equal angle with each of the longitudinal axes of the tunnel vaults crossing there.
  5. A plastic pallet (1) as claimed in any one of Claims 1 through 4, characterized in that a hole (12) for emptying the flexible bulk container is arranged between the tunnel-shaped receptacles.
  6. A plastic pallet (1) as claimed in Claim 5, characterized in that the hole (12) is covered with a lid (13) that is reversibly removable or hinged.
  7. A plastic pallet (1) as claimed in any one of Claims 1 through 6, characterized in that preferably flat supports (14) for the tines of the fork of a forklift apparatus are configured in the vault ribs (8), facing the inside of the tunnel.
  8. A plastic pallet (1) as claimed in any one of Claims 1 through 7, characterized in that the vault ribs (8) are configured as hollow ribs that are open towards the inside of the tunnel and in which stiffening elements (15) are configured, with at least part of the stiffening elements (15) having a preferably flat bottom side intended to rest on the tines of the fork of a forklift apparatus.
  9. A plastic pallet (1) as claimed in any one of Claims 1 through 8, characterized in that a flared rim (16) serving as an entering aid for a forklift apparatus is configured on the outer sides of those vault ribs (8) that form an end opening of a tunnel-shaped receptacle.
EP14164381.7A 2014-04-11 2014-04-11 Plastic pallet for receiving flexible bulk containers Active EP2930121B1 (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
EP14164381.7A EP2930121B1 (en) 2014-04-11 2014-04-11 Plastic pallet for receiving flexible bulk containers
DK14164381.7T DK2930121T3 (en) 2014-04-11 2014-04-11 Plastic pallet for receiving the flexible bulk material containers
RS20160474A RS54887B1 (en) 2014-04-11 2014-04-11 Plastic pallet for receiving flexible bulk containers
PL14164381.7T PL2930121T3 (en) 2014-04-11 2014-04-11 Plastic pallet for receiving flexible bulk containers
HUE14164381A HUE028401T2 (en) 2014-04-11 2014-04-11 Plastic pallet for receiving flexible bulk containers
ES14164381.7T ES2583068T3 (en) 2014-04-11 2014-04-11 Plastic pallet to accommodate flexible bulk product containers
SI201430057A SI2930121T1 (en) 2014-04-11 2014-04-11 Plastic pallet for receiving flexible bulk containers
PT141643817T PT2930121T (en) 2014-04-11 2014-04-11 Plastic pallet for receiving flexible bulk containers
US14/682,203 US9440770B2 (en) 2014-04-11 2015-04-09 Plastic pallet for flexible bulk containers
CY20161100615T CY1117717T1 (en) 2014-04-11 2016-07-04 PALLET OF COMPOSITE MATERIAL FOR RECEIVING TYPE BULK MATERIALS
HRP20161053TT HRP20161053T1 (en) 2014-04-11 2016-08-19 Plastic pallet for receiving flexible bulk containers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14164381.7A EP2930121B1 (en) 2014-04-11 2014-04-11 Plastic pallet for receiving flexible bulk containers

Publications (2)

Publication Number Publication Date
EP2930121A1 EP2930121A1 (en) 2015-10-14
EP2930121B1 true EP2930121B1 (en) 2016-05-25

Family

ID=50473174

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14164381.7A Active EP2930121B1 (en) 2014-04-11 2014-04-11 Plastic pallet for receiving flexible bulk containers

Country Status (11)

Country Link
US (1) US9440770B2 (en)
EP (1) EP2930121B1 (en)
CY (1) CY1117717T1 (en)
DK (1) DK2930121T3 (en)
ES (1) ES2583068T3 (en)
HR (1) HRP20161053T1 (en)
HU (1) HUE028401T2 (en)
PL (1) PL2930121T3 (en)
PT (1) PT2930121T (en)
RS (1) RS54887B1 (en)
SI (1) SI2930121T1 (en)

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* Cited by examiner, † Cited by third party
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GB2504087A (en) * 2012-07-16 2014-01-22 Chep Uk Ltd Pallet with feet which nest when stacking
EP4059861A1 (en) * 2016-01-28 2022-09-21 CHEP Technology Pty Limited Dolly
JP1608788S (en) * 2018-02-02 2018-07-09
USD869114S1 (en) * 2018-02-26 2019-12-03 Grow Solutions Tech Llc Cart
US10800576B1 (en) * 2019-06-17 2020-10-13 Tan Hong Sin Metallic pallet system with ski-shaped feet
US11661237B1 (en) 2020-07-24 2023-05-30 Formall, Inc. Pallet assembly
US20230213237A1 (en) * 2021-12-31 2023-07-06 J.F.R. Enterprises Inc. Fairly Distributed Plinth

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Also Published As

Publication number Publication date
HUE028401T2 (en) 2016-12-28
US20150291305A1 (en) 2015-10-15
HRP20161053T1 (en) 2016-11-04
EP2930121A1 (en) 2015-10-14
DK2930121T3 (en) 2016-08-22
CY1117717T1 (en) 2017-05-17
ES2583068T3 (en) 2016-09-16
US9440770B2 (en) 2016-09-13
PT2930121T (en) 2016-07-14
PL2930121T3 (en) 2016-12-30
SI2930121T1 (en) 2016-10-28
RS54887B1 (en) 2016-10-31

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