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EP0619796B1 - Transport pallet made of plastics - Google Patents

Transport pallet made of plastics Download PDF

Info

Publication number
EP0619796B1
EP0619796B1 EP94901790A EP94901790A EP0619796B1 EP 0619796 B1 EP0619796 B1 EP 0619796B1 EP 94901790 A EP94901790 A EP 94901790A EP 94901790 A EP94901790 A EP 94901790A EP 0619796 B1 EP0619796 B1 EP 0619796B1
Authority
EP
European Patent Office
Prior art keywords
strips
pallet
feet
pallet according
base
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.)
Expired - Lifetime
Application number
EP94901790A
Other languages
German (de)
French (fr)
Other versions
EP0619796B2 (en
EP0619796A1 (en
Inventor
Erich Weichenrieder, Sr.
Erich Weichenrieder, Jr.
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.)
Ertl Franz Xaver
Original Assignee
Ertl Franz Xaver
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
Family has litigation
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Application filed by Ertl Franz Xaver filed Critical Ertl Franz Xaver
Publication of EP0619796A1 publication Critical patent/EP0619796A1/en
Publication of EP0619796B1 publication Critical patent/EP0619796B1/en
Application granted granted Critical
Publication of EP0619796B2 publication Critical patent/EP0619796B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D19/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D19/0004—Rigid pallets without side walls
    • B65D19/0006—Rigid pallets without side walls the load supporting surface being made of a single element
    • B65D19/0008—Rigid pallets without side walls the load supporting surface being made of a single element forming a continuous plane contact surface
    • B65D19/001—Rigid pallets without side walls the load supporting surface being made of a single element forming a continuous plane contact surface the base surface being made of a single element
    • B65D19/0014—Rigid pallets without side walls the load supporting surface being made of a single element forming a continuous plane contact surface the base surface being made of a single element forming discontinuous or non-planar contact surfaces
    • B65D19/0016—Rigid pallets without side walls the load supporting surface being made of a single element forming a continuous plane contact surface the base surface being made of a single element forming discontinuous or non-planar contact surfaces and each contact surface having a stringer-like shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D19/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D19/0004—Rigid pallets without side walls
    • B65D19/0006—Rigid pallets without side walls the load supporting surface being made of a single element
    • B65D19/0008—Rigid pallets without side walls the load supporting surface being made of a single element forming a continuous plane contact surface
    • B65D19/001—Rigid pallets without side walls the load supporting surface being made of a single element forming a continuous plane contact surface the base surface being made of a single element
    • B65D19/0014—Rigid pallets without side walls the load supporting surface being made of a single element forming a continuous plane contact surface the base surface being made of a single element forming discontinuous or non-planar contact surfaces
    • B65D19/0018—Rigid pallets without side walls the load supporting surface being made of a single element forming a continuous plane contact surface the base surface being made of a single element forming discontinuous or non-planar contact surfaces and each contact surface having a discrete foot-like shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00009—Materials
    • B65D2519/00014—Materials for the load supporting surface
    • B65D2519/00034—Plastic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00009—Materials
    • B65D2519/00049—Materials for the base surface
    • B65D2519/00069—Plastic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00009—Materials
    • B65D2519/00084—Materials for the non-integral separating spacer
    • B65D2519/00104—Plastic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00258—Overall construction
    • B65D2519/00283—Overall construction of the load supporting surface
    • B65D2519/00288—Overall construction of the load supporting surface made of one piece
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00258—Overall construction
    • B65D2519/00313—Overall construction of the base surface
    • B65D2519/00318—Overall construction of the base surface made of one piece
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00258—Overall construction
    • B65D2519/00313—Overall construction of the base surface
    • B65D2519/00323—Overall construction of the base surface made of more than one piece
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00258—Overall construction
    • B65D2519/00313—Overall construction of the base surface
    • B65D2519/00328—Overall construction of the base surface shape of the contact surface of the base
    • B65D2519/00333—Overall construction of the base surface shape of the contact surface of the base contact surface having a stringer-like shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00258—Overall construction
    • B65D2519/00313—Overall construction of the base surface
    • B65D2519/00328—Overall construction of the base surface shape of the contact surface of the base
    • B65D2519/00338—Overall construction of the base surface shape of the contact surface of the base contact surface having a discrete foot-like shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00258—Overall construction
    • B65D2519/00368—Overall construction of the non-integral separating spacer
    • B65D2519/00373—Overall construction of the non-integral separating spacer whereby at least one spacer is made of one piece
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00258—Overall construction
    • B65D2519/00398—Overall construction reinforcements
    • B65D2519/00432—Non-integral, e.g. inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00547—Connections
    • B65D2519/00552—Structures connecting the constitutive elements of the pallet to each other, i.e. load supporting surface, base surface and/or separate spacer
    • B65D2519/00557—Structures connecting the constitutive elements of the pallet to each other, i.e. load supporting surface, base surface and/or separate spacer without separate auxiliary elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00547—Connections
    • B65D2519/00552—Structures connecting the constitutive elements of the pallet to each other, i.e. load supporting surface, base surface and/or separate spacer
    • B65D2519/00557—Structures connecting the constitutive elements of the pallet to each other, i.e. load supporting surface, base surface and/or separate spacer without separate auxiliary elements
    • B65D2519/00562—Structures connecting the constitutive elements of the pallet to each other, i.e. load supporting surface, base surface and/or separate spacer without separate auxiliary elements chemical connection, e.g. glued, welded, sealed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00547—Connections
    • B65D2519/00552—Structures connecting the constitutive elements of the pallet to each other, i.e. load supporting surface, base surface and/or separate spacer
    • B65D2519/00557—Structures connecting the constitutive elements of the pallet to each other, i.e. load supporting surface, base surface and/or separate spacer without separate auxiliary elements
    • B65D2519/00567—Structures connecting the constitutive elements of the pallet to each other, i.e. load supporting surface, base surface and/or separate spacer without separate auxiliary elements mechanical connection, e.g. snap-fitted

Definitions

  • the invention relates to a transport pallet made of plastic with two parallel surfaces forming its top or bottom, each surface being the outside of the base in each case one of two permanently connected base bodies, the bases of which are arranged at a distance from one another.
  • a transport pallet of this type is known from DE-A-26 55 593.
  • Each base for saving plastic material has a grid-like structure, so that the top and bottom have a plurality of openings.
  • Each base body is provided with blocks arranged in the manner of pallet feet, which protrude beyond the space occupied by the lattice-forming elements in the direction of the other base body and which are permanently connected to one another to form the pallet. There is therefore a free space between the two bases which is intended for the engagement of the fork of a forklift.
  • the grid-forming elements are designed in the form of ribs and their spacing is kept less than the width of a fork member of the forklift truck, so that the fork does not penetrate into the region of these ribs and possible damage is thereby prevented.
  • Reinforcing strips which are provided with open grooves, run between the blocks of a base body, into which removable, rigid reinforcing members are inserted and are preferably locked or fixed therein. This is intended to achieve a high load-bearing capacity of the pallet despite the savings in plastic material.
  • This well-known palette has a very complex shape, by which an effective cleaning is strongly hindered.
  • the height of the pallet is considerable and does not meet the desire for flat, space-saving pallets.
  • the reinforcing members are exposed to the possible effects of corrosive substances, so that their service life is limited unless they are made of particularly high quality material, such as e.g. Stainless steel.
  • the pallet should also be as inexpensive to manufacture as possible, have a high load-bearing capacity and a long service life, and the smallest possible height, which is particularly important for the return transport of empty pallets.
  • the pallet should be designed so that it is suitable for production from waste plastic, in particular also from unsorted household plastic waste that can only be processed in the pressing process, in order to make a contribution to the disposal of such waste.
  • each base body is a closed plate, that the space between the bases of the base body is bridged by pairs of mutually parallel, including a groove between them, that on both The ends of each pair of strips are each closed by a crossbar connecting the two bases to form a chamber that extends across the entire width of the pallet, the strips and crosspieces being integrally formed on both bases such that the space between the bases extends along the circumference of the pallet is closed by skirting boards that the pallet is provided with feet projecting outwards over a surface, the closed plates in the area of the feet can have openings to enable a stacking of several pallets, and that the two base bodies in the area of the lei most and crossbars are tightly welded together.
  • the two base bodies form after the connection a simply designed plate with smooth, easy-to-clean surfaces, which, due to its internal structure and the reinforcement inserts used as required, has a high load-bearing capacity despite a relatively small amount of material, the load-bearing capacity can be improved as required by at least one Only a rigid reinforcement insert is inserted.
  • the reinforcement inserts can maintain the shape stability of the pallets even when stored outdoors for a long time.
  • the plate can be kept relatively flat overall, thereby enabling a low overall height of the pallet. Because this plate is closed along its circumference, it cannot be damaged by incorrectly engaging the fork of a forklift.
  • WO-A-87/05581 shows a pallet which has a honeycomb structure as a supporting element, which is covered on one or both sides by plates which are tightly connected to the honeycomb structure by gluing, welding or the like honeycomb structure shock-absorbing and absorbing air cushions are included. Between the edges of the plate, the honeycomb structure is closed off from the outside by a peripheral edge. Outwardly projecting feet are connected to one of the plates.
  • honeycomb structure excludes the possibility of being made of elastic If necessary, plastic-made pallets can be made dimensionally stable or the load-bearing capacity increased by rigid inserts, in particular made of metal.
  • EP -A- 0 277 033 describes a transport pallet which - apart from runners to be fastened to the underside of support feet - including the support feet is made in one piece from plastic.
  • the upper limit of this pallet is a flat plate, from which molded-on reinforcing ribs, often crossing one another at different distances, project downwards. As a result, a multiplicity of chambers opened downward is formed. The introduction of continuous, rigid stiffeners is not possible.
  • In the area of the support feet there are closed chambers which are open at the top for design reasons, and vertical, hollow chambers which are closed at the top and open at the bottom are arranged in the center for inserting the connecting pins formed on the runners.
  • this pallet construction is not suitable for the arrangement of rigid stiffening inserts, it has a variety of open cavities and is particularly so structured on the underside that cleaning that meets today's regulations is hardly possible at a reasonable cost.
  • the pallet according to the solution can be produced inexpensively from plasticized plastic waste, in particular unsorted household plastic waste.
  • This material is, too due to its polyethylene content, particularly tough, tough, inelastic and unbreakable, and can only be processed in the pressing process because of possibly enclosed molding or because of fluctuations in the composition and the resulting changing melting points.
  • one, several or all of the chambers formed in the pallet according to the invention which are sealed off from the outside can each be provided with a reinforcing insert before the two base bodies are connected to one another, preferably by vibration or mirror welding. Because the reinforcing inserts are tightly enclosed in the chambers and the moisture in the chambers is also reduced during the welding process, there is no risk of corrosion for metal reinforcing inserts, so that inexpensive alloys can be used. In connection with the use of a plastic material that is both inexpensive and yet very resistant, it is therefore also possible to use relatively aggressive cleaning agents.
  • the length of the reinforcement insert is preferably dimensioned taking into account thermally induced changes in the length of the pallet on the one hand and the reinforcement insert on the other hand, so that no disturbing effects are to be feared even at the maximum expected limit temperatures.
  • the strips, crossbars and edge strips have the same height compared to the base of a base body.
  • strips, crossbars and edge strips associated with one another are integrally formed on both base bodies of the element, the height of the strips, crosspieces and edge strips of one base body approximately corresponding to the distance between the two base bodies forming the element, while the height of the strips, crosspieces and possibly edge strips of the other base body is limited to the height of welding projections, so that the reinforcing inserts can be completely embedded in the grooves formed between the pairs of strips before the connection of the two base bodies.
  • the base body carrying the strips, crossbars and edge strips is provided with the feet with the height of approximately the base distance of the base body.
  • Another expedient embodiment is to simplify production that all strips are arranged parallel to one another in a group of pairs of strips that are parallel to one another.
  • the element can also comprise two groups of pairs of strips which are parallel to one another, the direction of the strips of one group intersecting the direction of the strips of the other group and the strips being interrupted in this way in the intersection area of each pair of strips of the one group with a pair of strips of the other group that the grooves enclosed by all pairs of strips are connected to one another.
  • a grid-like, rigid reinforcement insert is preferably inserted into the interconnected grooves for high-load-bearing pallets.
  • the feet are preferably designed as hollow bodies and are arranged in an area kept free by the pairs of strips, their cross section tapering steadily towards their free end and the surface of the pallet facing away from the feet opposite each of the feet has an opening suitable for inserting a foot , wherein the cavity enclosed by the feet opens in the direction of this opening and wherein the area between the opening and the base body supporting the foot is enclosed by a wall closely adjoining both bases, the inner wall surface of which merges into the inner wall surface of the foot .
  • the feet are expediently molded onto the base body adjacent to them.
  • the free ends of the feet and the skids which are matched to the distance between two feet to be bridged by one skid each are provided with connecting elements which are assigned to one another such that the pallet can be provided with at least two mutually parallel skids beneath the feet.
  • the runners can be detachably connected to the feet, but a variant is preferred in which the pallet and runners form an inseparable unit.
  • the runners consist of a trough-like upper part which is connected to the feet and is open at the bottom and a lower part which covers the opening thereof and is tightly connected to form a hollow body.
  • the upper part is preferably bevelled on its longitudinal edges facing the feet in order to facilitate the insertion of fork-type forks.
  • a particularly expedient embodiment consists in that the runners are divided into chambers by longitudinal ribs formed on the upper part, at least one of the chambers being able to contain a rigid reinforcement insert which is enclosed in the chamber in a manner protected against corrosion by the tight connection of the upper part of the runners and the lower part of the runners.
  • the lower part is designed as a flat cover which has welding projections assigned to the edges of the upper part and, if appropriate, its longitudinal ribs.
  • an expedient embodiment is that the feet are integrally formed as downwardly open frames on the underside of the pallet, to which correspondingly shaped frames are assigned on the runners, and in that the frames associated with one another are welded to one another on the underside and on the runners to form a sealed cavity.
  • pairs of strips cross the pallet completely.
  • the shown, generally designated 10 pallet consists essentially of two plasticized in the pressing process Household plastic waste produced base bodies 12 and 14, which are permanently connected, preferably by mirror welding.
  • the base body 12 consists of a rectangular, plate-shaped base 15, one side 16 of which forms an outer side of the element 10.
  • an edge strip 20 extends at right angles to the plate plane along the circumference of the plate.
  • parallel strips 22 and 24 which are assigned to one another and run in pairs, each include a groove 26 between them.
  • all the strips 22 and 24 run parallel to two parallel side edges of the base 15.
  • the strips 20 which are parallel to the strips 22 and 24 can have the strips arranged adjacent to them corresponding to the width of the grooves 26 24 or 22 also 15 grooves 26 are arranged directly in the edge region of the base.
  • a second group of strips 22 'and 24' is added to the first group of strips 22 and 24, which is perpendicular to the strips 22 and 24 of the first Group run.
  • the strips 22 and 24 or 22 'and 24' are each interrupted in the cutting area of the two strip groups in such a way that the grooves 26 and 26 'are connected to one another.
  • the ribs 22 and 24 or 22 'and 24' can also run obliquely to the edges and optionally also at an acute angle to one another, so that the grooves 26 and 26 'form a diamond-shaped pattern.
  • the base body 14 consists of a likewise rectangular, plate-shaped base 17, with a side 16a forming an outer surface of the pallet 10 and a side 18a facing the side 18 of the base 15, which is congruent with the side 18, i.e. with the edge strips 20 and the strips 22 and 24 or 22 'and 24' corresponding profiles 20a, 22a, 24a, 22'a and 24'a is provided, but the height is relatively low due to their function as a welding approach, while the height the edge strips 20 and the strips 22, 24, 22 'and 24' almost corresponds to the distance between the opposite sides 18 and 18a in the finished pallet 10.
  • metallic reinforcement inserts 30 can be inserted into one or more or all of the grooves 26 and / or 26 ′, depending on the desired stability and load-bearing capacity, to reinforce the pallet 10. If there are two groups of grooves 26 and 26 ', a grid-like construction adapted to the overall system of the grooves 26 and 26' can also be introduced as the reinforcing insert.
  • the grooves are to be closed to moisture-tightly closed chambers in which the reinforcing inserts 30 are accommodated in a manner protected against corrosion.
  • three rows of three feet 40 each are provided on the underside of the pallet, these feet being molded onto the lower base body 12 and tapering towards their free end.
  • the feet 40 are hollow and are formed by a truncated cone or truncated pyramid with an inner wall surface 44 which is closed at its free end by a bottom 46.
  • the jacket 42 is connected to the base 15 of the base body 12, the ribs 22 and 24 being distributed on the base 15 in such a way that the regions are free of ribs on which the feet 40 are arranged, so that in the manner described below Possibility is created to stack empty pallets in a particularly space-saving manner.
  • the base 15 is penetrated by the jacket 42 formed on it in the region of an opening 48 formed therein, the jacket 42 then continuing on the inside 18 of the base 15 and in the plane determined by the height of the ribs 20, 22 and 24 ends. While maintaining the tip angle selected for the inner wall surface 44 of the jacket 42, this wall surface 44 continues in the interior of the hollow loading pallet 10.
  • the base 17 is provided on its inside 18a with a welding attachment 42a which is assigned to the free end of the jacket 42 on the base body 12 and is designed such that it welds the two base bodies 12 and 14 to the inner wall surface 44 after the welding has aligned inner wall surface 50, which opens out in an opening 52 in the base 17.
  • the pallet 10 After the two base bodies 12 and 14 have been welded, the pallet 10 thus has on its upper side 16 openings formed by the openings 52 to which a cavity 54 delimited by the wall surfaces 44 and 50 connects, which is suitable for receiving the corresponding foot 40 of a pallet 10 stacked over the same type of pallet.
  • the area within the hollow pallet 10 intended for receiving the reinforcing inserts 30 is sealed off from the cavity 54.
  • runners 60 produced in the pressing process which have locking pins 62 assigned to the feet 40 with a cross-sectional shape that is convex in longitudinal section, so that by pressing the locking pins 62 into openings 64 on the bottom 46 of each foot 40 the runners 60 can be permanently connected to a row of three feet 40.
  • a runner shape as shown in FIGS. 4, 5 and 6 is more advantageous, the runner 61 being designed as a hollow body.
  • This hollow body consists of an upper part 70, for example in the form of a trough which is open at the bottom, the upper longitudinal edges 72 of the upper part 70 facing the pallet 10 being chamfered in order to facilitate the insertion of a stacker fork.
  • the upper part 70 is traversed in the longitudinal direction by two longitudinal ribs 74, for example.
  • the opening of the The upper part is preferably closed by mirror welding with a flat cover 76, on which welding projections 78 assigned to the edges of the upper part 70 and the ribs 74 are formed, so that, just as in the manufacture of the pallet 10, a moisture-tight hollow body is formed which is divided into several chambers. into which metallic reinforcement inserts can optionally be introduced before welding.
  • the runner 61 can also be releasably connected to the pallet 10.
  • FIG. 6 shows a suitable embodiment for this purpose.
  • the upper part 70 is provided on its upper side 82 with openings 84, which represent the opening of cylindrical guide sleeves 86 formed on the inside of the upper part 70, to which welding projections 88 and passage openings 90 are assigned on the cover 76 are.
  • depressions 92 are formed concentrically with the passage openings 90, which are suitable for a recessed arrangement of the heads 94 of e.g. To allow expansion dowel-like connecting bolts 96, with which the runner 61 can be connected to the feet 40.
  • the runners 61 are firmly welded to the pallets 10, for which purpose frame-like stub 41 are formed on the lower base body 12, to which corresponding counterparts 43 are associated on the upper side 82 of the upper parts 70 of the runners 61, which are preferably welded into one closed, a connecting foot between the pallet 10 and the skid 61 forming hollow body can be connected.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pallets (AREA)
  • Confectionery (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

On a shipping pallet made of plastic, with two parallel surfaces forming its upper side and its underside respectively, whereby each surface is the outside of the base of two basic components permanently connected to one another, the bases of which are located at some distance from one another, the base of each basic component is a closed plate. The space between the bases of the basic components is bridged by a pair of strips parallel to one another and enclosing a groove between them. On both ends of each pair of strips the groove is closed by a cross member connecting the two bases to form a chamber. The space between the bases along the circumference of the pallet is closed by edge strips. The pallet is provided with feet projecting outward from a surface, and equipped with skids if necessary, and the two basic components are tightly connected to one another in the vicinity of the strips and cross member.

Description

Die Erfindung betrifft eine aus Kunststoff gefertigte Transportpalette mit zwei ihre Oberseite bzw. ihre Unterseite bildenden parallelen Oberflächen, wobei jede Oberfläche die Außenseite der Basis jeweils eines von zwei dauerhaft miteinander verbundenen Grundkörpern ist, deren Basen mit Abstand voneinander angeordnet sind.The invention relates to a transport pallet made of plastic with two parallel surfaces forming its top or bottom, each surface being the outside of the base in each case one of two permanently connected base bodies, the bases of which are arranged at a distance from one another.

Eine Transportpalette dieser Art ist aus der DE-A-26 55 593 bekannt. Dabei weist jede Basis zur Einsparung von Kunststoffmaterial eine gitterartige Struktur auf, so daß also die Ober- und die Unterseite eine Mehrzahl von Durchbrechungen aufweisen. Jeder Grundkörper ist mit nach Art von Palettenfüßen angeordneten Blöcken versehen, die über den von den gitterbildenden Elementen eingenommenen Raum in Richtung auf den anderen Grundkörper vorspringen und die zur Bildung der Palette miteinander dauerhaft verbunden sind. Zwischen den beiden Basen verbleibt somit ein freier Raum, der für den Eingriff der Gabel eines Gabelstaplers bestimmt ist. Die gitterbildenden Elemente sind rippenartig ausgestaltet und ihr Abstand ist geringer als die Breite eines Gabelglieds des Gabelstaplers gehalten, damit das Eindringen der Gabel in den Bereich dieser Rippen und eine dadurch mögliche Beschädigung verhindert wird.A transport pallet of this type is known from DE-A-26 55 593. Each base for saving plastic material has a grid-like structure, so that the top and bottom have a plurality of openings. Each base body is provided with blocks arranged in the manner of pallet feet, which protrude beyond the space occupied by the lattice-forming elements in the direction of the other base body and which are permanently connected to one another to form the pallet. There is therefore a free space between the two bases which is intended for the engagement of the fork of a forklift. The grid-forming elements are designed in the form of ribs and their spacing is kept less than the width of a fork member of the forklift truck, so that the fork does not penetrate into the region of these ribs and possible damage is thereby prevented.

Zwischen den Blöcken eines Grundkörpers verlaufen Verstärkungsleisten, die mit offenen Nuten versehen sind, in die herausnehmbare, starre Verstärkungsglieder eingesetzt und vorzugsweise darin verriegelt bzw. fixiert sind. Damit soll trotz der Einsparung an Kunststoffmaterial eine hohe Tragfähigkeit der Palette erzielt werden.Reinforcing strips, which are provided with open grooves, run between the blocks of a base body, into which removable, rigid reinforcing members are inserted and are preferably locked or fixed therein. This is intended to achieve a high load-bearing capacity of the pallet despite the savings in plastic material.

Diese bekannte Palette weist eine sehr komplexe Formgebung auf, durch die eine wirksame Reinigung stark behindert wird. Die Bauhöhe der Palette ist beachtlich und entspricht nicht dem Wunsch nach möglichst flachen, raumsparenden Paletten. Außerdem sind die Verstärkungsglieder der möglichen Einwirkung korrodierender Stoffe ausgesetzt, so daß ihre Lebensdauer begrenzt ist, sofern sie nicht aus besonders hochwertigem Material, wie z.B. Edelstahl, bestehen.This well-known palette has a very complex shape, by which an effective cleaning is strongly hindered. The height of the pallet is considerable and does not meet the desire for flat, space-saving pallets. In addition, the reinforcing members are exposed to the possible effects of corrosive substances, so that their service life is limited unless they are made of particularly high quality material, such as e.g. Stainless steel.

Da in zunehmendem Umfang Lebensmittel auf Paletten transportiert werden, besteht die Forderung, Paletten durch wirkungsvolle und doch relativ einfache Reinigung möglichst keimfrei halten zu können, was einfache und möglichst glatte Oberflächen erfordert, um einerseits bereits die Ablagerung von Verunreinigung möglichst gering zu halten und andererseits die unmittelbare Beaufschlagung durch Reinigungsmittel nicht zu behindern.Since food is increasingly being transported on pallets, there is a requirement to be able to keep pallets as germ-free as possible by effective but relatively simple cleaning, which requires simple and as smooth surfaces as possible, on the one hand to keep the deposition of contamination as low as possible and on the other hand not to impede direct exposure to cleaning agents.

Aus allgemeinen wirtschaftlichen Gründen soll die Palette außerdem möglichst kostengünstig herstellbar sein, eine hohe Tragfähigkeit und eine lange Lebensdauer, sowie eine möglichst geringe Bauhöhe aufweisen, was insbesondere für den Rücktransport von Leerpaletten bedeutsam ist.For general economic reasons, the pallet should also be as inexpensive to manufacture as possible, have a high load-bearing capacity and a long service life, and the smallest possible height, which is particularly important for the return transport of empty pallets.

Es ist deshalb die Aufgabe der Erfindung, eine Palette der eingangs genannten Art so auszugestalten, daß sie möglichst steif und tragfähig ist, eine hohe Lebensdauer erwarten läßt und deshalb möglichst frei von korrosionsanfälligen Bauteilen ist, daß sie kostengünstig in großen Stückzahlen angefertigt, umweltfreundlich entsorgt und insbesondere durch eine möglichst einfache Formgebung mit weitgehend glatten und geschlossenen Oberflächen wirkungsvoll gereinigt werden kann.It is therefore the object of the invention to design a pallet of the type mentioned at the outset in such a way that it is as stiff and stable as possible, has a long service life and is therefore free from corrosion-prone as far as possible Components are that they can be inexpensively manufactured in large quantities, disposed of in an environmentally friendly manner and, in particular, can be effectively cleaned by means of a simple design with largely smooth and closed surfaces.

Dabei soll die Palette so gestaltet sein, daß sie sich zur Herstellung aus Abfallkunststoff, insbesondere auch aus nur im Preßverfahren verarbeitbarem unsortiertem Haushaltskunststoffabfall, eignet, um dadurch einen Beitrag zur Entsorgung derartiger Abfälle zu leisten.The pallet should be designed so that it is suitable for production from waste plastic, in particular also from unsorted household plastic waste that can only be processed in the pressing process, in order to make a contribution to the disposal of such waste.

Die Lösung dieser Aufgabe besteht erfindungsgemäß bei der eingangs beschriebenen Palette darin, daß die Basis jedes Grundkörpers eine geschlossene Platte ist, daß der Zwischenraum zwischen den Basen der Grundkörper durch Paare von jeweils zueinander parallelen, zwischen sich eine Nut einschließenden Leisten überbrückt wird, daß an beiden Enden eines jeden Leistenpaares die Nut jeweils durch einen beide Basen verbindenden Quersteg zu einer sich über die gesamte Breite der Palette erstreckenden Kammer geschlossen ist, wobei die Leisten und Querstege einstückig an beiden Basen angeformt sind, daß der Raum zwischen den Basen längs des Umfangs der Palette durch Randleisten geschlossen ist, daß die Palette mit über eine Oberfläche nach außen vorstehenden Füßen versehen ist, wobei die geschlossenen Platten im Bereich der Füße Durchbrechungen aufweisen können, um ein Ineinanderstapeln mehrerer Paletten zu ermöglichen, und daß die beiden Grundkörper im Bereich der Leisten und Querstege miteinander dicht verschweißt sind.The solution to this problem is according to the invention in the range described above that the base of each base body is a closed plate, that the space between the bases of the base body is bridged by pairs of mutually parallel, including a groove between them, that on both The ends of each pair of strips are each closed by a crossbar connecting the two bases to form a chamber that extends across the entire width of the pallet, the strips and crosspieces being integrally formed on both bases such that the space between the bases extends along the circumference of the pallet is closed by skirting boards that the pallet is provided with feet projecting outwards over a surface, the closed plates in the area of the feet can have openings to enable a stacking of several pallets, and that the two base bodies in the area of the lei most and crossbars are tightly welded together.

Abweichend von der vorstehend erläuterten bekannten Konstruktion bilden die beiden Grundkörper nach der Verbindung eine einfach gestaltete Platte mit glatten, leicht zu reinigenden Oberflächen, die aufgrund ihrer inneren Struktur und der je nach Bedarf verwendeten Verstärkungseinlagen trotz eines relativ geringen Materialbedarfs eine hohe Tragfähigkeit aufweist, wobei die Tragfähigkeit je nach Bedarf noch dadurch verbessert werden kann, daß zumindest in eine Nut eine starre Verstärkungseinlage eingelegt ist. Insbesondere kann durch die Verstärkungseinlagen die Formstabilität der Paletten auch bei längerer Lagerung im Freien erhalten bleiben.Deviating from the known construction explained above, the two base bodies form after the connection a simply designed plate with smooth, easy-to-clean surfaces, which, due to its internal structure and the reinforcement inserts used as required, has a high load-bearing capacity despite a relatively small amount of material, the load-bearing capacity can be improved as required by at least one Only a rigid reinforcement insert is inserted. In particular, the reinforcement inserts can maintain the shape stability of the pallets even when stored outdoors for a long time.

Die Platte kann insgesamt relativ flach gehalten werden und ermöglicht dadurch eine geringe Bauhöhe der Palette. Weil diese Platte längs ihres Umfangs geschlossen ist, kann sie nicht durch fehlerhaften Eingriff der Gabel eines Gabelstaplers beschädigt werden.The plate can be kept relatively flat overall, thereby enabling a low overall height of the pallet. Because this plate is closed along its circumference, it cannot be damaged by incorrectly engaging the fork of a forklift.

Die WO -A- 87/05581 zeigt eine Palette, die als tragendes Element eine wabenartige Struktur aufweist, die auf einer oder beiden Seiten durch mit der wabenartigen Struktur durch Kleben, Schweißen oder dergl. dicht verbundenen Platten abgedeckt wird, wobei in den Zellen der wabenartigen Struktur stoßdämpfende und -absorbierende Luftpolster eingeschlossen werden. Zwischen den Plattenrändern wird die wabenartige Struktur von einem umlaufenden Rand nach außen abgeschlossen. Mit einer der Platten sind nach außen vorstehende Füße verbunden.WO-A-87/05581 shows a pallet which has a honeycomb structure as a supporting element, which is covered on one or both sides by plates which are tightly connected to the honeycomb structure by gluing, welding or the like honeycomb structure shock-absorbing and absorbing air cushions are included. Between the edges of the plate, the honeycomb structure is closed off from the outside by a peripheral edge. Outwardly projecting feet are connected to one of the plates.

Diese Konstruktion zeigt abgesehen von die Palette durchquerenden Wasserablaufkanälen und zu diesen führenden vertieften Kanälen auf der Außenfläche der oberen Platte bereits eine relativ glatte Oberfläche. Die Wabenstruktur schließt jedoch die Möglichkeit aus, die aus elastischem Kunststoff gefertigte Palette bei Bedarf durch starre Einlagen, insbesondere aus Metall, formstabil zu gestalten bzw. die Tragfähigkeit zu erhöhen.This construction already shows, apart from the water drainage channels crossing the pallet and to these recessed channels leading to the outer surface of the upper plate, a relatively smooth surface. However, the honeycomb structure excludes the possibility of being made of elastic If necessary, plastic-made pallets can be made dimensionally stable or the load-bearing capacity increased by rigid inserts, in particular made of metal.

In der EP -A- 0 277 033 wird eine Transportpalette beschrieben, die - bis auf an der Unterseite von Stützfüßen zu befestigende Kufen - einschließlich der Stützfüße einstückig aus Kunststoff gefertigt ist. Diese Palette besitzt als obere Begrenzung eine flache Platte, von der aus angeformte Verstärkungsrippen, sich gegenseitig vielfach in unterschiedlichen Abständen kreuzend, nach unten ragen. Dadurch wird eine Vielzahl von nach unten geeöffneten Kammern gebildet. Das Einbringen durchlaufender, starrer Versteifungen ist nicht möglich. Im Bereich der Stützfüße befinden sich unten geschlossene, aus formtechnischen Gründen nach oben geöffnete Kammern, in deren Zentrum zum Einstecken der an den Kufen ausgebildeten Verbindungszapfen vertikale, oben geschlossene und unten geöffnete Hohlkammern angeordnet sind.EP -A- 0 277 033 describes a transport pallet which - apart from runners to be fastened to the underside of support feet - including the support feet is made in one piece from plastic. The upper limit of this pallet is a flat plate, from which molded-on reinforcing ribs, often crossing one another at different distances, project downwards. As a result, a multiplicity of chambers opened downward is formed. The introduction of continuous, rigid stiffeners is not possible. In the area of the support feet there are closed chambers which are open at the top for design reasons, and vertical, hollow chambers which are closed at the top and open at the bottom are arranged in the center for inserting the connecting pins formed on the runners.

Abgesehen davon, daß diese Palettenkonstruktion nicht zur Anordnung starrer Versteifungseinlagen eignet, weist sie vielfältige offene Hohlräume auf und ist insbesondere an ihrer Unterseite so stark gegliedert, daß eine den heutigen Vorschriften gerecht werdende Reinigung zu vertretbaren Kosten kaum möglich ist.In addition to the fact that this pallet construction is not suitable for the arrangement of rigid stiffening inserts, it has a variety of open cavities and is particularly so structured on the underside that cleaning that meets today's regulations is hardly possible at a reasonable cost.

Die lösungsgemäße Palette kann nach einer vorteilhaften Ausgestaltung kostengünstig aus plastifiziertem Kunststoffabfall, insbesondere unsortiertem Haushaltskunststoffabfall, hergestellt werden. Dieses Material ist, auch aufgrund seines Polyethylenanteils, besonders widerstandsfähig, außerdem zäh, unelastisch und bruchfest, und kann wegen womöglich eingeschlossener Frendkörper oder wegen Schwankungen in der Zusammensetzung und dadurch bedingter wechselnder Schmelzpunkte nur im Preßverfahren verarbeitet werden.According to an advantageous embodiment, the pallet according to the solution can be produced inexpensively from plasticized plastic waste, in particular unsorted household plastic waste. This material is, too due to its polyethylene content, particularly tough, tough, inelastic and unbreakable, and can only be processed in the pressing process because of possibly enclosed molding or because of fluctuations in the composition and the resulting changing melting points.

Von den in der erfindungsgemäßen Palette ausgebildeten, nach außen dicht abgeschlossenen Kammern können je nach der zu erwartenden Belastung eine, mehrere oder alle mit jeweils einer Verstärkungseinlage versehen werden, bevor die beiden Grundkörper miteinander, vorzugsweise durch Vibrations- oder Spiegelschweißen, miteinander verbunden werden. Weil die Verstärkungseinlagen in den Kammern dicht eingeschlossen sind und zudem beim Schweißvorgang die Feuchtigkeit in den Kammern reduziert wird, besteht für Verstärkungseinlagen aus Metall keine Korrosionsgefahr, so daß kostengünstige Legierungen verwendet werden können. Es besteht in Verbindung mit der Verwendung eines einerseits kostengünstigen und doch sehr widerstandsfähigen Kunststoffmaterials deshalb auch die Möglichkeit, relativ agressive Reinigungsmittel einzusetzen.Depending on the load to be expected, one, several or all of the chambers formed in the pallet according to the invention which are sealed off from the outside can each be provided with a reinforcing insert before the two base bodies are connected to one another, preferably by vibration or mirror welding. Because the reinforcing inserts are tightly enclosed in the chambers and the moisture in the chambers is also reduced during the welding process, there is no risk of corrosion for metal reinforcing inserts, so that inexpensive alloys can be used. In connection with the use of a plastic material that is both inexpensive and yet very resistant, it is therefore also possible to use relatively aggressive cleaning agents.

Vorzugsweise wird die Länge der Verstärkungseinlage unter Berücksichtigung von thermisch bedingten Längenänderungen der Palette einerseits und der Verstärkungseinlage andererseits bemessen, so daß auch bei den maximal zu erwartenden Grenztemperaturen keine störenden Auswirkungen zu befürchten sind.The length of the reinforcement insert is preferably dimensioned taking into account thermally induced changes in the length of the pallet on the one hand and the reinforcement insert on the other hand, so that no disturbing effects are to be feared even at the maximum expected limit temperatures.

Es dient der einfachen Fertigung, wenn nach einer zweckmäßigen Ausführungsform die Leisten, Querstege und Randleisten gegenüber der Basis eines Grundkörpers die gleiche Höhe aufweisen. Vorzugsweise sind an beiden Grundkörpern des Elements einander deckungsgleich zugeordnete Leisten, Querstege und Randleisten angeformt, wobei die Höhe der Leisten, Querstege und Randleisten des einen Grundkörpers annähernd dem Abstand der beiden das Element bildenden Grundkörper entspricht, während die Höhe der Leisten, Querstege und gegebenenfalls Randleisten des anderen Grundkörpers auf die Höhe von Schweißansätzen beschränkt ist, so daß vor der Verbindung der beiden Grundkörper die Verstärkungseinlagen vollständig in die zwischen den Leistenpaaren ausgebildeten Nuten eingebettet werden können.It is used for simple manufacture if, according to an expedient embodiment, the strips, crossbars and edge strips have the same height compared to the base of a base body. Preferably, strips, crossbars and edge strips associated with one another are integrally formed on both base bodies of the element, the height of the strips, crosspieces and edge strips of one base body approximately corresponding to the distance between the two base bodies forming the element, while the height of the strips, crosspieces and possibly edge strips of the other base body is limited to the height of welding projections, so that the reinforcing inserts can be completely embedded in the grooves formed between the pairs of strips before the connection of the two base bodies.

Für die Festigkeit der Palette erweist es sich als günstig, wenn nach einer bevorzugten Ausgestaltung der die Leisten, Querstege und Randleisten mit der Höhe etwa des Basisabstandes der Grundkörper tragende Grundkörper mit den Füßen versehen ist.For the strength of the pallet, it proves to be favorable if, according to a preferred embodiment, the base body carrying the strips, crossbars and edge strips is provided with the feet with the height of approximately the base distance of the base body.

Eine weitere zweckmäßige Ausgestaltung besteht zur Vereinfachung der Fertigung darin, daß in einer Gruppe von Paaren zueinander paralleler Leisten alle Leisten zueinander parallel angeordnet sind. Dabei kann das Element auch zwei Gruppen von Paaren zueinander paralleler Leisten umfassen, wobei die Richtung der Leisten der einen Gruppe die Richtung der Leisten der anderen Gruppe schneidet und im Schnittbereich eines jeden Leistenpaares der einen Gruppe mit einem Leistenpaar der anderen Gruppe die Leisten derart unterbrochen sind, daß die von allen Leistenpaaren eingeschlossenen Nuten miteinander in Verbindung stehen.Another expedient embodiment is to simplify production that all strips are arranged parallel to one another in a group of pairs of strips that are parallel to one another. The element can also comprise two groups of pairs of strips which are parallel to one another, the direction of the strips of one group intersecting the direction of the strips of the other group and the strips being interrupted in this way in the intersection area of each pair of strips of the one group with a pair of strips of the other group that the grooves enclosed by all pairs of strips are connected to one another.

Vorzugsweise ist in diesem Fall für hochtragfähige Paletten eine gitterartige, starre Verstärkungseinlage in die miteinander in Verbindung stehenden Nuten eingelegt.In this case, a grid-like, rigid reinforcement insert is preferably inserted into the interconnected grooves for high-load-bearing pallets.

Vorzugsweise sind die Füße als Hohlkörper ausgebildet und in einem von den Leistenpaaren freigehaltenen Bereich angeordnet, wobei sich ihr Querschnitt in Richtung auf ihr freies Ende stetig verjüngt und die von den Füßen abgewandte Oberfläche der Palette jedem der Füße gegenüberliegend eine zum Einsetzen eines Fußes geeignete Durchbrechung aufweist, wobei sich der von den Füßen umschlossene Hohlraum in Richtung auf diese Durchbrechung öffnet und wobei der Bereich zwischen der Durchbrechung und dem den Fuß tragenden Grundkörper mit einer an beide Basen dicht anschliessenden Wandung umschlossen ist, deren innere Wandfläche fluchtend in die innere Wandfläche des Fußes übergeht.The feet are preferably designed as hollow bodies and are arranged in an area kept free by the pairs of strips, their cross section tapering steadily towards their free end and the surface of the pallet facing away from the feet opposite each of the feet has an opening suitable for inserting a foot , wherein the cavity enclosed by the feet opens in the direction of this opening and wherein the area between the opening and the base body supporting the foot is enclosed by a wall closely adjoining both bases, the inner wall surface of which merges into the inner wall surface of the foot .

Zweckmäßigerweise sind die Füße an dem ihnen benachbarten Grundkörper angeformt.The feet are expediently molded onto the base body adjacent to them.

Nach einer vorteilhaften AusfĂĽhrungsform sind die freien Enden der FĂĽĂźe und auf den durch jeweils eine Kufe zu ĂĽberbrĂĽckenden Abstand zweier FĂĽĂźe abgestimmte Kufen mit einander zugeordneten Verbindungselementen derart versehen, daĂź die Palette unterhalb der FĂĽĂźe mit wenigstens zwei zueinander parallelen Kufen versehbar ist.According to an advantageous embodiment, the free ends of the feet and the skids which are matched to the distance between two feet to be bridged by one skid each are provided with connecting elements which are assigned to one another such that the pallet can be provided with at least two mutually parallel skids beneath the feet.

Nach einer ersten Variante können die Kufen lösbar mit den Füßen verbunden sein, bevorzugt wird jedoch eine Variante, bei der Palette und Kufen eine untrennbare Einheit bilden.According to a first variant, the runners can be detachably connected to the feet, but a variant is preferred in which the pallet and runners form an inseparable unit.

Nach einer vorteilhaften Ausführungsform bestehen die Kufen aus einem mit den Füßen verbundenen, nach unten geöffneten, wannenartigen Oberteil und einem dessen Öffnung abdeckenden und mit diesem zur Bildung eines Hohlkörpers dicht verbundenen Unterteil. Vorzugsweise ist das Oberteil an seinen den Füßen zugewandten Längskanten abgeschrägt, um das Einschieben von Staplergabeln zu erleichtern.According to an advantageous embodiment, the runners consist of a trough-like upper part which is connected to the feet and is open at the bottom and a lower part which covers the opening thereof and is tightly connected to form a hollow body. The upper part is preferably bevelled on its longitudinal edges facing the feet in order to facilitate the insertion of fork-type forks.

Eine besonders zweckmäßige Ausführungsform besteht darin, daß die Kufen durch am Oberteil ausgebildete Längsrippen in Kammern unterteilt sind, wobei zumindest eine der Kammern eine starre Verstärkungseinlage enthalten kann, die durch die dichte Verbindung von Kufenoberteil und Kufenunterteil korrosionsgeschützt in der Kammer eingeschlossen ist.A particularly expedient embodiment consists in that the runners are divided into chambers by longitudinal ribs formed on the upper part, at least one of the chambers being able to contain a rigid reinforcement insert which is enclosed in the chamber in a manner protected against corrosion by the tight connection of the upper part of the runners and the lower part of the runners.

Nach einer vorteilhaften Ausgestaltung ist das Unterteil als flacher Deckel ausgebildet, der den Rändern des Oberteils und gegebenenfalls dessen Längsrippen zugeordnete Schweißansätze aufweist.According to an advantageous embodiment, the lower part is designed as a flat cover which has welding projections assigned to the edges of the upper part and, if appropriate, its longitudinal ribs.

Um Palette und Kufen als untrennbare Einheit auszuführen, besteht eine zweckmäßige Ausgestaltung darin, daß die Füße als nach unten offene Rahmen an der Unterseite der Palette angeformt sind, denen an den Kufen jeweils entsprechend geformte Rahmen zugeordnet sind, und daß die einander zugeordneten Rahmen an der Unterseite und an den Kufen unter Bildung jeweils eines dichten Hohlraums miteinander verschweißt sind.To run the pallet and runners as an inseparable unit, an expedient embodiment is that the feet are integrally formed as downwardly open frames on the underside of the pallet, to which correspondingly shaped frames are assigned on the runners, and in that the frames associated with one another are welded to one another on the underside and on the runners to form a sealed cavity.

Eine bevorzugte Ausführungsform ist es auch, daß die Leistenpaare die Palette vollständig überqueren.It is also a preferred embodiment that the pairs of strips cross the pallet completely.

Anhand der nun folgenden Beschreibung der in der Zeichnung dargestellten Ausführungsbeispiele der Erfindung wird diese näher erläutert.
Es zeigt:

Fig. 1
einen Querschnitt durch eine Transportpalette nach der Linie I-I in Fig. 2,
Fig. 2
einen Schnitt nach der Linie II-II in Fig. 1, wobei die rechte und die linke Seite zwei unterunterschiedliche AusfĂĽhrungsformen des Randbereichs zeigen,
Fig. 3
einen der Fig. 1 entsprechenden Querschnitt in einem mit einem FuĂź versehenen Randbereich der Palette,
Fig. 4
einen Querschnitt ähnlich Fig. 3 durch eine andere Ausführungsform der Palette mit fest angebrachten Kufen,
Fig. 5
einen Querschnitt nach der Linie V-V in Fig. 4 und
Fig. 6
einen Querschnitt durch eine Kufe ähnlich Fig. 5 bei einer Variante mit spreizdübelartiger Kufenbefestigung.
Based on the following description of the embodiments of the invention shown in the drawing, this will be explained in more detail.
It shows:
Fig. 1
3 shows a cross section through a transport pallet along the line II in FIG. 2,
Fig. 2
2 shows a section along the line II-II in FIG. 1, the right and left sides showing two different embodiments of the edge region,
Fig. 3
1 in a cross section corresponding to FIG. 1 in an edge region of the pallet provided with a foot,
Fig. 4
3 shows a cross section similar to FIG. 3 through another embodiment of the pallet with fixed runners,
Fig. 5
a cross section along the line VV in Fig. 4 and
Fig. 6
a cross section through a runner similar to FIG. 5 in a variant with expansion plug-like runner attachment.

Die gezeigte, insgesamt mit 10 bezeichnete Palette besteht im wesentlichen aus zwei im Preßverfahren aus plastifiziertem Haushalts-Kunststoffabfall erzeugten Grundkörpern 12 und 14, die dauerhaft, vorzugsweise durch Spiegelschweißen, miteinander verbunden sind.The shown, generally designated 10 pallet consists essentially of two plasticized in the pressing process Household plastic waste produced base bodies 12 and 14, which are permanently connected, preferably by mirror welding.

Der Grundkörper 12 besteht aus einer rechteckigen, plattenförmigen Basis 15, deren eine Seite 16 eine Außenseite des Elements 10 bildet. Auf der von der Seite 16 abgewandten Seite 18 erstreckt sich rechtwinklig zur Plattenebene längs des Plattenumfangs eine Randleiste 20. Zwischen zwei einander gegenüberliegenden Abschnitten der Randleiste 20 verlaufen einander paarweise zugeordnete parallele Leisten 22 und 24, die zwischen sich jeweils eine Nut 26 einschliessen. Beim in der linken Hälfte der Fig. 2 gezeigten Beispiel verlaufen alle Leisten 22 und 24 parallel zu zwei parallelen Seitenkanten der Basis 15. In diesem Fall können durch entsprechend der Breite der Nuten 26 den zu den Leisten 22 und 24 parallelen Randleisten 20 benachbart angeordnete Leisten 24 bzw. 22 auch unmittelbar im Randbereich der Basis 15 Nuten 26 angeordnet werden. Diese Möglichkeit besteht auch dann, wenn nach der in der rechten Hälfte der Fig. 2 gezeigten Variante der ersten Gruppe von Leisten 22 und 24 eine zweite Gruppe von Leisten 22' und 24' hinzugefügt wird, die rechtwinklig zu den Leisten 22 und 24 der ersten Gruppe verlaufen. In diesem Fall werden die Leisten 22 und 24 bzw. 22' und 24' jeweils im Schnittbereich der beiden Leistengruppen derart unterbrochen, daß die Nuten 26 und 26' miteinander in Verbindung stehen.The base body 12 consists of a rectangular, plate-shaped base 15, one side 16 of which forms an outer side of the element 10. On the side 18 facing away from the side 16, an edge strip 20 extends at right angles to the plate plane along the circumference of the plate. Between two mutually opposite sections of the edge strip 20, parallel strips 22 and 24, which are assigned to one another and run in pairs, each include a groove 26 between them. In the example shown in the left half of FIG. 2, all the strips 22 and 24 run parallel to two parallel side edges of the base 15. In this case, the strips 20 which are parallel to the strips 22 and 24 can have the strips arranged adjacent to them corresponding to the width of the grooves 26 24 or 22 also 15 grooves 26 are arranged directly in the edge region of the base. This possibility also exists if, according to the variant shown in the right half of FIG. 2, a second group of strips 22 'and 24' is added to the first group of strips 22 and 24, which is perpendicular to the strips 22 and 24 of the first Group run. In this case, the strips 22 and 24 or 22 'and 24' are each interrupted in the cutting area of the two strip groups in such a way that the grooves 26 and 26 'are connected to one another.

Statt parallel zu den Kanten der Basis 15 können die Rippen 22 und 24 bzw. 22' und 24' auch schräg zu den Kanten und gegebenenfalls auch in einem spitzen Winkel zueinander verlaufen, so daß die Nuten 26 und 26' ein rautenförmiges Muster bilden.Instead of parallel to the edges of the base 15, the ribs 22 and 24 or 22 'and 24' can also run obliquely to the edges and optionally also at an acute angle to one another, so that the grooves 26 and 26 'form a diamond-shaped pattern.

Wo die Nuten 26 bzw. 26' auf die Randleisten 20 treffen, bildet der die Nut 26 bzw. 26' jeweils ĂĽberquerende Abschnitt der Randleisten 20 einen Steg 28 bzw. 28', der jede Nut 26 bzw. 26' abschlieĂźt.Where the grooves 26 and 26 'meet the edge strips 20, the section of the edge strips 20 crossing the groove 26 and 26' forms a web 28 and 28 'which closes each groove 26 and 26'.

Der Grundkörper 14 besteht aus einer ebenfalls rechteckigen, plattenförmigen Basis 17, mit einer eine Außenfläche der Palette 10 bildenden Seite 16a und einer der Seite 18 der Basis 15 zugewandten Seite 18a, die deckungsgleich zur Seite 18 gestaltet ist, d.h. mit den Randleisten 20 und den Leisten 22 und 24 bzw. 22' und 24' entsprechenden Profilierungen 20a, 22a, 24a, 22'a und 24'a versehen ist, deren Höhe jedoch wegen ihrer Funktion als Schweißansatz relativ gering ist, während die Höhe der Randleisten 20 und der Leisten 22, 24, 22' und 24' nahezu dem Abstand der in der fertigen Palette 10 einander gegenüberliegenden Seiten 18 und 18a entspricht.The base body 14 consists of a likewise rectangular, plate-shaped base 17, with a side 16a forming an outer surface of the pallet 10 and a side 18a facing the side 18 of the base 15, which is congruent with the side 18, i.e. with the edge strips 20 and the strips 22 and 24 or 22 'and 24' corresponding profiles 20a, 22a, 24a, 22'a and 24'a is provided, but the height is relatively low due to their function as a welding approach, while the height the edge strips 20 and the strips 22, 24, 22 'and 24' almost corresponds to the distance between the opposite sides 18 and 18a in the finished pallet 10.

Bevor die beiden Grundkörper 12 und 14 miteinander zur Palette 10 verbunden werden, können zur Verstärkung der Palette 10 je nach der gewünschten Stabilität und Tragfähigkeit in eine oder mehrere oder alle der Nuten 26 und/oder 26' metallische Verstärkungseinlagen 30 eingelegt werden. Falls zwei Gruppen von Nuten 26 und 26' vorhanden sind, kann als Verstärkungseinlage auch eine dem Gesamtsystem der Nuten 26 und 26' angepaßte, gitterartige Konstruktion eingebracht werden.Before the two base bodies 12 and 14 are connected to one another to form the pallet 10, metallic reinforcement inserts 30 can be inserted into one or more or all of the grooves 26 and / or 26 ′, depending on the desired stability and load-bearing capacity, to reinforce the pallet 10. If there are two groups of grooves 26 and 26 ', a grid-like construction adapted to the overall system of the grooves 26 and 26' can also be introduced as the reinforcing insert.

Durch sorgfältiges Verschweißen der Grundkörper 12 und 14 sollen die Nuten zu feuchtigkeitsdicht nach außen abgeschlossenen Kammern geschlossen werden, in denen die Verstärkungseinlagen 30 vor Korrosion geschützt untergebracht sind.By carefully welding the base bodies 12 and 14, the grooves are to be closed to moisture-tightly closed chambers in which the reinforcing inserts 30 are accommodated in a manner protected against corrosion.

In einer bei Paletten gebräuchlichen Anordnung werden an der Palettenunterseite drei Reihen von jeweils drei Füßen 40 vorgesehen, wobei diese Füße am unteren Grundkörper 12 angeformt sind und sich gegen ihr freies Ende verjüngen. Die Füße 40 sind hohl ausgebildet und werden von einem kegelstumpfförmigen oder pyramidenstumpfförmigen Mantel 42 mit einer inneren Wandfläche 44 gebildet, der an seinem freien Ende von einem Boden 46 abgeschlossen wird. Der Mantel 42 ist mit der Basis 15 des Grundkörpers 12 verbunden, wobei die Rippen 22 und 24 derart an der Basis 15 verteilt sind, daß die Bereiche frei von Rippen sind, an welchen die Füße 40 angeordnet werden, damit in der nachfolgend beschriebenen Weise die Möglichkeit geschaffen wird, leere Paletten besonders platzsparend zu stapeln.In an arrangement customary for pallets, three rows of three feet 40 each are provided on the underside of the pallet, these feet being molded onto the lower base body 12 and tapering towards their free end. The feet 40 are hollow and are formed by a truncated cone or truncated pyramid with an inner wall surface 44 which is closed at its free end by a bottom 46. The jacket 42 is connected to the base 15 of the base body 12, the ribs 22 and 24 being distributed on the base 15 in such a way that the regions are free of ribs on which the feet 40 are arranged, so that in the manner described below Possibility is created to stack empty pallets in a particularly space-saving manner.

Die Basis 15 wird von dem an ihr angeformten Mantel 42 im Bereich einer in ihr ausgebildeten Öffnung 48 durchdrungen, wobei sich der Mantel 42 anschließend an die Innenseite 18 der Basis 15 fortsetzt und in der durch die Höhe der Rippen 20, 22 und 24 bestimmten Ebene endet. Unter Beibehaltung des für die innere Wandfläche 44 des Mantels 42 gewählten Spitzenwinkels setzt sich diese Wandfläche 44 also im Inneren der hohlen Ladepalette 10 fort. Am oberen Grundkörper 14 ist die Basis 17 auf ihrer Innenseite 18a mit einem dem freien Ende des Mantels 42 am Grundkörper 12 zugeordneten Schweißansatz 42a versehen, der so gestaltet ist, daß er eine nach dem Verschweißen der beiden Grundkörper 12 und 14 mit der inneren Wandfläche 44 fluchtende innere Wandfläche 50 aufweist, die in einer Durchbrechung 52 in der Basis 17 ausmündet. Nach dem Verschweißen der beiden Grundkörper 12 und 14 weist die Palette 10 an ihrer Oberseite 16 somit von den Durchbrechungen 52 gebildete Öffnungen auf, an die sich ein von den Wandflächen 44 und 50 begrenzter Hohlraum 54 anschließt, der zur Aufnahme des entsprechenden Fußes 40 einer über die Palette 10 gestapelten Palette gleicher Art geeignet ist. Der für die Aufnahme der Verstärkungseinlagen 30 vorgesehene Bereich innerhalb der hohlen Palette 10 ist dicht gegenüber dem Hohlraum 54 abgeschlossen.The base 15 is penetrated by the jacket 42 formed on it in the region of an opening 48 formed therein, the jacket 42 then continuing on the inside 18 of the base 15 and in the plane determined by the height of the ribs 20, 22 and 24 ends. While maintaining the tip angle selected for the inner wall surface 44 of the jacket 42, this wall surface 44 continues in the interior of the hollow loading pallet 10. On the upper base body 14, the base 17 is provided on its inside 18a with a welding attachment 42a which is assigned to the free end of the jacket 42 on the base body 12 and is designed such that it welds the two base bodies 12 and 14 to the inner wall surface 44 after the welding has aligned inner wall surface 50, which opens out in an opening 52 in the base 17. After the two base bodies 12 and 14 have been welded, the pallet 10 thus has on its upper side 16 openings formed by the openings 52 to which a cavity 54 delimited by the wall surfaces 44 and 50 connects, which is suitable for receiving the corresponding foot 40 of a pallet 10 stacked over the same type of pallet. The area within the hollow pallet 10 intended for receiving the reinforcing inserts 30 is sealed off from the cavity 54.

Um die Paletten 10 verschieben zu können, besteht die Möglichkeit, sie in bekannter Weise mit unter den Füßen 40 angeordneten Kufen 60 zu versehen. Falls es erwünscht ist, die Palette 10 wahlweise mit oder ohne Kufen verwenden zu können, kann eine lösbare Verbindung der Kufen mit der Palette vorgesehen werden, wie sie aus Fig. 3 oder Fig. 6 ersichtlich ist. Vorzugsweise werden die Kufen jedoch dauerhaft mit der Palette verbunden, wie dies in Fig. 4 gezeigt ist.In order to be able to move the pallets 10, there is the possibility of providing them with runners 60 arranged under the feet 40 in a known manner. If it is desired to be able to use the pallet 10 either with or without runners, a releasable connection of the runners to the pallet can be provided, as can be seen from FIG. 3 or FIG. 6. However, the runners are preferably permanently connected to the pallet, as shown in FIG. 4.

In Fig. 3 sind ebenso wie die Palette 10 im Preßverfahren hergestellte Kufen 60 gezeigt, die den Füßen 40 zugeordnete Rastzapfen 62 mit einer im Längsschnitt konvex ausgewölbten Querschnittsform besitzen, so daß durch Eindrücken der Rastzapfen 62 in Öffnungen 64 am Boden 46 eines jeden Fußes 40 die Kufen 60 dauerhaft jeweils mit einer Reihe von drei Füßen 40 verbunden werden können.In FIG. 3, as well as the pallet 10, runners 60 produced in the pressing process are shown, which have locking pins 62 assigned to the feet 40 with a cross-sectional shape that is convex in longitudinal section, so that by pressing the locking pins 62 into openings 64 on the bottom 46 of each foot 40 the runners 60 can be permanently connected to a row of three feet 40.

Vorteilhafter ist eine Kufenform, wie sie in den Fig. 4, 5 und 6 gezeigt ist, wobei die Kufe 61 als Hohlkörper gestaltet ist. Dieser Hohlkörper besteht aus einem Oberteil 70, etwa in Form einer nach unten geöffneten Wanne, wobei die oberen, der Palette 10 zugewandten Längskanten 72 des Oberteils 70 abgeschrägt sind, um das Einschieben einer Staplergabel zu erleichtern. Das Oberteil 70 wird in Längsrichtung von z.B. zwei Längsrippen 74 durchzogen. Um einen geschlossenen Hohlkörper zu bilden, wird die Öffnung des Oberteil vorzugsweise durch Spiegelschweißen mit einem flachen Deckel 76 verschlossen, an dem den Rändern des Oberteils 70 und den Rippen 74 zugeordnete Schweißansätze 78 angeformt sind, so daß ebenso wie bei der Herstellung der Palette 10 ein feuchtigkeitsdichter Hohlkörper entsteht, der in mehrere Kammern unterteilt ist, in die gegebenenfalls vor dem Verschweißen auch metallische Verstärkungseinlagen eingebracht werden können.A runner shape as shown in FIGS. 4, 5 and 6 is more advantageous, the runner 61 being designed as a hollow body. This hollow body consists of an upper part 70, for example in the form of a trough which is open at the bottom, the upper longitudinal edges 72 of the upper part 70 facing the pallet 10 being chamfered in order to facilitate the insertion of a stacker fork. The upper part 70 is traversed in the longitudinal direction by two longitudinal ribs 74, for example. In order to form a closed hollow body, the opening of the The upper part is preferably closed by mirror welding with a flat cover 76, on which welding projections 78 assigned to the edges of the upper part 70 and the ribs 74 are formed, so that, just as in the manufacture of the pallet 10, a moisture-tight hollow body is formed which is divided into several chambers. into which metallic reinforcement inserts can optionally be introduced before welding.

Auch die Kufe 61 kann lösbar mit der Palette 10 verbunden werden. Eine hierzu geeignete Ausführungsform zeigt die Fig. 6. Das Oberteil 70 ist dabei an seiner Oberseite 82 mit Öffnungen 84 versehen, die die Ausmündung zylindrischer, an der Innenseite des Oberteils 70 angeformter Führungshülsen 86 darstellen, denen am Deckel 76 Schweißansätze 88 und Durchtrittsöffnungen 90 zugeordnet sind. An der Unterseite des Deckels 76 sind konzentrisch zu den Durchtrittsöffnungen 90 Einsenkungen 92 ausgebildet, die geeignet sind, eine versenkte Anordnung der Köpfe 94 von z.B. spreizdübelartigen Verbindungsbolzen 96 zu ermöglichen, mit denen die Kufe 61 mit den Füßen 40 verbunden werden kann.The runner 61 can also be releasably connected to the pallet 10. FIG. 6 shows a suitable embodiment for this purpose. The upper part 70 is provided on its upper side 82 with openings 84, which represent the opening of cylindrical guide sleeves 86 formed on the inside of the upper part 70, to which welding projections 88 and passage openings 90 are assigned on the cover 76 are. On the underside of the cover 76, depressions 92 are formed concentrically with the passage openings 90, which are suitable for a recessed arrangement of the heads 94 of e.g. To allow expansion dowel-like connecting bolts 96, with which the runner 61 can be connected to the feet 40.

Nach einer bevorzugten Ausführungsform werden die Kufen 61 jedoch fest mit den Paletten 10 verschweißt, wozu am unteren Grundkörper 12 rahmenartige Fußstummel 41 angeformt sind, denen an der Oberseite 82 der Oberteile 70 der Kufen 61 entsprechende Gegenstücke 43 zugeordnet sind, die vorzugsweise durch Spiegelschweißen zu einem geschlossenen, einen Verbindungsfuß zwischen der Palette 10 und der Kufe 61 bildenden Hohlkörper verbunden werden können.According to a preferred embodiment, however, the runners 61 are firmly welded to the pallets 10, for which purpose frame-like stub 41 are formed on the lower base body 12, to which corresponding counterparts 43 are associated on the upper side 82 of the upper parts 70 of the runners 61, which are preferably welded into one closed, a connecting foot between the pallet 10 and the skid 61 forming hollow body can be connected.

Claims (19)

  1. Transport pallet (10) produced of synthetic material with two parallel surfaces respectively forming its upper side (16a) and its underside (16), wherein each surface (16, 16a) is the outward side of the base (15, 17) of a respective one of two base bodies (12, 14), which are durably connected together and the bases (15, 17) of which are arranged at a spacing one from the other, characterised thereby, that the base (15, 17) of each base body is a closed plate, that the intermediate space between the bases (15, 17) of the base bodies (12, 14) is bridged over by pairs of respectively mutually parallel strips (20, 22; 22, 24; 24, 20) including a groove (26) between them, that the groove (26) is closed at each of both ends of each pair of strips (20, 22; 22, 24; 24, 20) by a respective transverse web (28) connecting both the bases (15, 17) into a closed chamber extending over the entire width of the pallet, wherein the strips (20, 22; 22, 24; 24, 20) and the transverse webs (28) are integrally moulded on at both bases (15, 17), that the space between the bases (15, 17) along the periphery of the pallet (10) is closed by rim strips (20), that the pallet is provided with feet (40) projecting outwardly beyond one surface, wherein the closed plates can display apertures in the region of the feet in order to enable an interengaging stacking of several pallets, and that both the base bodies (12, 14) are tightly welded together in the region of the strips (20, 22, 24) and the transverse webs (28).
  2. Pallet according to claim 1, characterised thereby, that a rigid re-inforcing insert (30) is laid into at least one groove (26).
  3. Pallet according to one of the claims 1 and 2, characterised thereby, that the strips (22, 24), the transverse webs (28) and the rim strips (20) display the same height relative to the base (15) of one base body (12).
  4. Pallet according to one of the claims 1 to 3, characterised thereby, that mutually congruently associated strips (22, 24; 22a, 24a), transverse webs (28; 28a) and rim strips (20; 20a) are moulded on at both the base bodies (12, 14) of the pallet (10), wherein the height of the strips (22, 24), the transverse webs (28) and the rim strips (20) of the one base body (12) corresponds approximately with the spacing of the bases (15, 17) of both the base bodies (12, 14) forming the pallet (10), whilst the height of the strips (22a, 24a), the transverse webs (28a) and the rim strips (20a) of the other base body (14) is restricted to the height of weld projections.
  5. Pallet according to claim 4, characterised thereby, that the base body (12), which carries the strips (22a, 24a), the transverse webs (28a) and the rim strips (20a) with the height of about the base spacing of the base bodies (12, 14), is provided with the feet (40).
  6. Pallet according to one of the claims 1 to 5, characterised thereby, that all strips are arranged one parallelly to the other in one group of pairs of mutually parallel strips (22, 24; 22', 24').
  7. Pallet according to claim 6, characterised thereby, that it comprises two groups of pairs of mutually parallel strips, wherein the direction of the strips (22, 24) of the one group intersects the direction of the strips (22', 24') of the other group, and that the strips are interrupted in the region of intersection of each pair of strips of the one group with a pair of strips of the other group in such a manner that the grooves (26; 26'), which are included by all pairs of strips, stand in communication one with the other.
  8. Pallet according to claim 7, characterised thereby, that a grating-like, rigid re-inforcing insert is laid into the grooves.
  9. Pallet according to one of the claims 6 to 8, characterised thereby, that the strips of at least one group extend parallelly to a rim of the pallet (10).
  10. Pallet according to one of the preceding claims, characterised thereby, that the feet (40) are formed as hollow bodies and arranged in a region kept clear of the pair of strips (22, 24; 22', 24'), that their cross-section steadily narrows in the direction of their free ends, that that surface (16a) of the pallet (10), which is remote from the feet, opposite each of the feet (40) displays an aperture (52) suitable for the insertion of a foot (40), that the cavity (54) enclosed by the feet opens in the direction of this aperture (52) and that the region between the aperture (52) and the base body (12) carrying the foot (40) is surrounded by a wall, which closely adjoins both the bases (15, 17) and the inward wall surface (50) of which passes over in alignment into the inward wall surface (44) of the foot (40).
  11. Pallet according to claim 10, characterised thereby, that the feet (40) are moulded on at the base body (12) neighbouring them.
  12. Pallet according to one of the preceding claims, characterised thereby, that the free ends (46) of the feet (40) and skids (60, 61), which are matched to the spacing of two feet (40) to be bridged over by a respective skid, are provided with connecting elements, which are associated one with the other, in such a manner that the pallet (10) can be provided underneath the feet (40) with at least two mutually parallel skids (60, 61).
  13. Pallet according to claim 12, characterised thereby, that the skids (61) consist of a downwardly open, trough-like upper part (70) connected with the feet (40) and a lower part (76), which covers the opening thereof and is tightly connected therewith for the formation of a hollow body.
  14. Pallet according to claim 13, characterised thereby, that the upper part (70) is chamfered at its longitudinal edges (72) facing the feet (40).
  15. Pallet according to one of the claims 13 and 14, characterised thereby, that the skids (61) are subdivided into chambers by longitudinal ribs (74) formed at the upper part (70).
  16. Pallet according to one of the claims 13 to 15, characterised thereby, that the lower part (76) is constructed as a flat lid which displays weld projections (70, 80) associated with the rims of the upper part (70) and, in a given case, with the longitudinal ribs (74) thereof.
  17. Pallet according to one of the claims 15 and 16, characterised thereby, that at least one of the skid chambers contains a rigid reinforcing insert.
  18. Pallet according to one of the claims 13 to 17, characterised thereby, that the feet (40) are moulded on as downwardly open frames (41) at the underside (16) of the pallet (10), which are associated with frames (43) shaped correspondingly each time at the skids (61), and that the mutually associated frames at the underside (16) and at the skids (61) are welded together with the formation each time of a respective closed hollow space.
  19. Pallet according to one of the preceding claims, characterised thereby, that the pairs of strips (20, 22; 22, 24; 24, 20) traverse the pallet (10) completely.
EP94901790A 1992-11-10 1993-11-10 Transport pallet made of plastics Expired - Lifetime EP0619796B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4237917A DE4237917C2 (en) 1992-11-10 1992-11-10 Transport pallet pressed from plastic
DE4237917 1992-11-10
PCT/EP1993/003149 WO1994011262A1 (en) 1992-11-10 1993-11-10 Transport pallet made of plastics

Publications (3)

Publication Number Publication Date
EP0619796A1 EP0619796A1 (en) 1994-10-19
EP0619796B1 true EP0619796B1 (en) 1996-07-24
EP0619796B2 EP0619796B2 (en) 1999-09-08

Family

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Family Applications (1)

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US (1) US5806436A (en)
EP (1) EP0619796B2 (en)
JP (1) JP2904309B2 (en)
AT (1) ATE140669T1 (en)
DE (2) DE4237917C2 (en)
DK (1) DK0619796T4 (en)
ES (1) ES2091685T5 (en)
GR (2) GR3021090T3 (en)
RU (1) RU2126349C1 (en)
WO (1) WO1994011262A1 (en)

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JPH07506796A (en) 1995-07-27
DK0619796T4 (en) 2000-02-07
RU2126349C1 (en) 1999-02-20
RU94037234A (en) 1996-07-20
WO1994011262A1 (en) 1994-05-26
DK0619796T3 (en) 1996-11-25
DE4237917C2 (en) 1998-04-16
DE59303325D1 (en) 1996-08-29
JP2904309B2 (en) 1999-06-14
ES2091685T3 (en) 1996-11-01
ATE140669T1 (en) 1996-08-15
US5806436A (en) 1998-09-15
EP0619796B2 (en) 1999-09-08
DE4237917A1 (en) 1994-05-11
EP0619796A1 (en) 1994-10-19
GR3031959T3 (en) 2000-03-31
ES2091685T5 (en) 2000-01-01
GR3021090T3 (en) 1996-12-31

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