EP0619796B1 - Palette de transport en matiere plastique - Google Patents

Palette de transport en matiere plastique Download PDF

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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
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German (de)
English (en)
Other versions
EP0619796B2 (fr
EP0619796A1 (fr
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
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Filing date
Publication date
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Application filed by Ertl Franz Xaver filed Critical Ertl Franz Xaver
Publication of EP0619796A1 publication Critical patent/EP0619796A1/fr
Application granted granted Critical
Publication of EP0619796B1 publication Critical patent/EP0619796B1/fr
Publication of EP0619796B2 publication Critical patent/EP0619796B2/fr
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.

Landscapes

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

Claims (19)

  1. Palette (10) de transport en matière plastique comportant deux surfaces parallèles formant sa face (16a) supérieure et sa face (16) inférieure, chaque surface (16, 16a) étant la face extérieure de la base (15, 17) d'une de deux embases (12, 14) qui sont reliées entre elles de manière permanente et dont les bases (15, 17) sont prévues à distance l'une de l'autre, caractérisée en ce que la base (15, 17) de chaque embase (12, 14) est un plateau fermé, que des paires de barres (20, 22; 22, 24; 24, 20) parallèles l'une à l'autre, comprenant une rainure (26) entre elles, passent par dessus l'intervalle compris entre les bases (15, 17) des embases (12, 14), qu'aux deux extrémités de chacune des paires (20, 22; 22, 24; 24, 20) de barres, la rainure (26) est fermée, par une barrette (28) transversale reliant les deux bases (15, 17), en une chambre qui s'étend sur toute la largeur de la palette, les barres (20, 22; 22, 24; 24, 20) et les barrettes (28) transversales étant d'une pièce avec les deux bases (15, 17), que l'espace compris entre les bases (15, 17) est fermé le long du pourtour de la palette (10) par des barres (20) marginales, que la palette est munie de pieds (40) qui font saillie d'une surface vers l'extérieur, les plateaux fermés pouvant comporter des découpes dans la région des pieds, afin de permettre d'empiler plusieurs palettes les unes dans les autres, et que les deux embases (12, 14) sont soudées entre elles de manière étanche dans la région des barres (20, 22, 24) et des barrettes (28) transversales.
  2. Palette suivant la revendication 1, caractérisée en ce qu'un insert (30) rigide de renforcement est inséré dans au moins une rainure (26).
  3. Palette suivant l'une des revendications 1 ou 2, caractérisée en ce que les barres (22, 24), les barrettes (28) transversales et les barres (20) marginales ont la même hauteur par rapport à la base (15) d'une embase (12).
  4. Palette suivant l'une des revendications 1 à 3, caractérisée en ce qu'il est issu des deux embases (12, 14) de la palette (10) des barres (22, 24; 22a, 24a), des barrettes (28, 28a) transversales et des barres (20, 20a) marginales associées les unes aux autres avec coïncidence, la hauteur des barres (22, 24), des barrettes (28) transversales et des barres (20) marginales de l'une des embase (12) correspondant à peu près à la distance séparant les bases (15, 17) des deux embases (12, 14) formant la palette, tandis que la hauteur des barres (22a, 24a), des barrettes (28a) transversales et des barres (20a) marginales de l'autre embase (14) est limitée à la hauteur de prolongements soudés.
  5. Palette suivant la revendication 4, caractérisée en ce que l'embase (12, 14) portant les barres (22, 24), les barrettes (28) transversales et les barres (20) marginales ayant environ la hauteur de la distance séparant les bases des embases (12, 14) est munie des pieds (40).
  6. Palette suivant l'une des revendications 1 à 5, caractérisée en ce que, dans un groupe de paires de barres (22, 24, 22', 24') parallèles l'une à l'autre, toutes les barres sont montées parallèlement les unes aux autres.
  7. Palette suivant la revendication 6, caractérisée en ce qu'elle comporte deux groupes de paires de barres parallèles l'une à l'autre, la direction des barres (22, 24) de l'un des groupes étant sécante à la direction des barres (22', 24') de l'autre groupe et, dans la région d'intersection de chacune des paires de barres de l'un des groupes, les barres étant interrompues par une paire de barres de l'autre groupe de manière que les rainures (26; 26') incluses dans toutes les paires de barres communiquent entre elles.
  8. Palette suivant la revendication 7, caractérisée en ce qu'un insert rigide de renforcement en forme de grille est inséré dans les rainures.
  9. Palette suivant l'une des revendications 6 à 8, caractérisée en ce qu'au moins les barres d'un groupe s'étendent parallèlement à un bord de la palette (10).
  10. Palette suivant l'une des revendications précédentes, caractérisée en ce que les pieds (40) sont agencés en éléments creux et montés dans une région qui est exempte des paires (22, 24; 22', 24') de barres, en ce que leur section transversale est rétrécie de manière continue en direction de leur extrémité libre, en ce que la surface (16a) de la palette (10) qui est éloignée des pieds comporte une découpe (52) opposée à chaque pied (40) et adaptée à l'insertion d'un pied (40), en ce que la cavité (54) entourée des pieds s'ouvre en direction de cette découpe (52), et en ce que la région comprise entre la découpe (52) et l'embase (12) portant le pied (40) est entourée d'une paroi qui se raccorde de manière étanche aux deux bases (15, 17) et dont la face (50) intérieure de paroi devient en alignement la face (44) de paroi intérieure du pied (40).
  11. Palette suivant la revendication 10, caractérisée en ce que les pieds (40) sont issus de l'embase (12) qui leur est adjacente.
  12. Palette suivant l'une des revendications précédentes, caractérisée en ce que les extrémités (46) libres des pieds (40) et de patins (60, 61), accordés à la distance qui sépare deux pieds (40) et par dessus laquelle un patin doit passer, sont munies d'éléments (64, 62) de liaison associés l'un à l'autre, de telle manière que la palette (10) puisse être munie, au-dessous des pieds (40), d'au moins deux patins (60, 61) parallèles l'une à l'autre.
  13. Palette suivant la revendication 12, caractérisée en ce que les patins (61) consistent en une partie (70) supérieure en cuvette reliée aux pieds (40), ouverte vers le bas, et en une partie (76) inférieure recouvrant son ouverture et reliée de manière étanche à celle-ci afin de former un élément creux. De préférence, les bords longitudinaux de la partie supérieure tournés vers les pieds sont biseautés afin de faciliter l'entrée de fourches de chariot élévateur.
  14. Palette suivant la revendication 13, caractérisée en ce que les bords (72) longitudinaux de la partie (70) supérieure qui sont tournés vers les pieds (40) sont biseautés.
  15. Palette suivant l'une des revendications 13 ou 14, caractérisée en ce que les patins (61) sont subdivisés en chambres par des nervures (74) longitudinales agencées sur la partie (70) supérieure.
  16. Palette suivant l'une des revendications 13 à 15, caractérisée en ce que la partie (76) inférieure est agencée en couvercle plat qui comporte des prolongements (78, 80) soudés associés aux bords de la partie (70) supérieure et éventuellement à ses nervures (74) longitudinales.
  17. Palette suivant l'une des revendications 15 ou 16, caractérisée en ce qu'au moins une des chambres de patin contient un insert rigide de renforcement.
  18. Palette suivant l'une des revendications 13 à 17, caractérisée en ce que les pieds (40) sont issus de la face (16) inférieure de la palette (10) en tant que cadres (41) ouverts vers le bas auxquels sont associés des cadres (43) issus de manière correspondante des patins (60), et en ce que les cadres associés l'un à l'autre de la face (16) inférieure et des patins (61) sont soudés entre eux en formant une cavité étanche.
  19. Palette suivant l'une des revendications précédentes, caractérisée en ce que les paires (20, 22; 22, 24; 24, 20) de barres traversent entièrement la palette (10).
EP94901790A 1992-11-10 1993-11-10 Palette de transport en matiere plastique Expired - Lifetime EP0619796B2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4237917 1992-11-10
DE4237917A DE4237917C2 (de) 1992-11-10 1992-11-10 Aus Kunststoff gepreßte Transportpalette
PCT/EP1993/003149 WO1994011262A1 (fr) 1992-11-10 1993-11-10 Palette de transport en matiere plastique

Publications (3)

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

Family

ID=6472524

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94901790A Expired - Lifetime EP0619796B2 (fr) 1992-11-10 1993-11-10 Palette de transport en matiere plastique

Country Status (10)

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

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US7874256B2 (en) * 2000-04-11 2011-01-25 Nextreme, Llc Fire resistant plastic pallet with low radio frequency resistivity
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US11352169B2 (en) 2019-01-18 2022-06-07 Rehrig Pacific Company Pallet assembly
US11174070B2 (en) 2019-08-07 2021-11-16 Rehrig Pacific Company Stackable pallet
US11034371B2 (en) 2019-08-19 2021-06-15 Rehrig Pacific Company Pallet sled
USD895223S1 (en) 2020-05-20 2020-09-01 Rehrig Pacific Company Pallet
USD895224S1 (en) 2020-05-20 2020-09-01 Rehrig Pacific Company Pallet

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Also Published As

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

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