EP0183140B1 - Palette de transport rectangulaire pouvant être fabriquée de deux flans en carton réunissables entre eux - Google Patents

Palette de transport rectangulaire pouvant être fabriquée de deux flans en carton réunissables entre eux Download PDF

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Publication number
EP0183140B1
EP0183140B1 EP85114505A EP85114505A EP0183140B1 EP 0183140 B1 EP0183140 B1 EP 0183140B1 EP 85114505 A EP85114505 A EP 85114505A EP 85114505 A EP85114505 A EP 85114505A EP 0183140 B1 EP0183140 B1 EP 0183140B1
Authority
EP
European Patent Office
Prior art keywords
support
blank
edge supports
edge
pallet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP85114505A
Other languages
German (de)
English (en)
Other versions
EP0183140A3 (en
EP0183140A2 (fr
Inventor
Fritz W. Wittmann
Wilhelm Blotevogel
Ulrich Wruck
Jens Carl Kuhlmann
Hans-Ulrich Höfer
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.)
Europa Carton AG
Original Assignee
Europa Carton AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Europa Carton AG filed Critical Europa Carton AG
Priority to AT85114505T priority Critical patent/ATE66884T1/de
Publication of EP0183140A2 publication Critical patent/EP0183140A2/fr
Publication of EP0183140A3 publication Critical patent/EP0183140A3/de
Application granted granted Critical
Publication of EP0183140B1 publication Critical patent/EP0183140B1/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
    • B65D19/0018—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
    • B65D2519/00019—Paper
    • 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
    • B65D2519/00054—Paper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00258—Overall construction
    • B65D2519/00263—Overall construction of the pallet
    • B65D2519/00273—Overall construction of the pallet made of more than one piece
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00258—Overall construction
    • B65D2519/00283—Overall construction of the load supporting surface
    • B65D2519/00288—Overall construction of the load supporting surface made of one piece
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00258—Overall construction
    • B65D2519/00313—Overall construction of the base surface
    • B65D2519/00318—Overall construction of the base surface made of one piece
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00258—Overall construction
    • B65D2519/00313—Overall construction of the base surface
    • B65D2519/00328—Overall construction of the base surface shape of the contact surface of the base
    • B65D2519/00333—Overall construction of the base surface shape of the contact surface of the base contact surface having a stringer-like shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00547—Connections
    • B65D2519/00552—Structures connecting the constitutive elements of the pallet to each other, i.e. load supporting surface, base surface and/or separate spacer
    • B65D2519/00557—Structures connecting the constitutive elements of the pallet to each other, i.e. load supporting surface, base surface and/or separate spacer without separate auxiliary elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00547—Connections
    • B65D2519/00552—Structures connecting the constitutive elements of the pallet to each other, i.e. load supporting surface, base surface and/or separate spacer
    • B65D2519/00557—Structures connecting the constitutive elements of the pallet to each other, i.e. load supporting surface, base surface and/or separate spacer without separate auxiliary elements
    • B65D2519/00562—Structures connecting the constitutive elements of the pallet to each other, i.e. load supporting surface, base surface and/or separate spacer without separate auxiliary elements chemical connection, e.g. glued, welded, sealed

Definitions

  • the invention relates to a rectangular, accessible transport pallet that can be produced from at least two interconnectable corrugated cardboard blanks, in which the blanks can be at least partially connected to one another, and are arranged with respect to one another in such a way that the directions of their corrugations intersect, the first blank is foldable and shaped along a pair of opposite pallet edges extending, support beam-like edge girders, which are essentially open on their side facing the other, second blank and can be inserted into the supporting elements, and between the two edge girders has at least one inner, support beam-like support channel, on the second cut in the Substantially over its entire length along its edges assigned to the opposite supporting beam-like edge girders, bendable spacing sections corresponding to the pallet height are arranged and the supporting elements are arranged opposite one carrier surface of the pallet-forming main surface of the second blank are deformable.
  • a flat and undeformed corrugated cardboard pallet which forms the second blank and determines the surface of the pallet, is connected practically in a flat manner to the first, three carrier bars defining blank by covering flat parts directed against the second blank between the three support bars and a foldable edge flange on the outer spars of the first blank with glue and pressing the second blank onto the first.
  • An exclusively non-positive connection is thus provided between the two blanks.
  • the support elements in the form of upright reinforcement pieces are inserted into the hollow interiors of the support bars, which are folded in a zigzag pattern and thus extend between opposite walls of the interior of the support bar.
  • These reinforcement pieces are held at their ends in the support bars by means of tabs and preferably have a somewhat greater height than the support bars, so that their upper edges are slightly compressed when the second blank (upper part) is pressed on, i.e. be deformed.
  • the known pallet thus requires a total of five material blanks and high forces when the blanks are pressed together to deform the reinforcements, these forces easily leading to deformations of the shaft material of the first and second blanks and impairing their load-bearing capacity.
  • This range offers only insufficient resistance to lateral deformation forces (shear, bending and torsional stresses), so that it is unable to cope with the stresses that occur in practice, especially during the usual careless handling in the factory with forklifts and similar equipment.
  • undercarriage is only possible in the direction of the support bars.
  • U-shaped supporting parts may have to be inserted in the center parallel to the edge supports of the side edges, as shown in an optional embodiment of that known construction , which means additional material and manufacturing costs.
  • the box-shaped connecting elements only remain connected to the actual support plate along a single crease line in the edge area.
  • This already very fragile edge area is further weakened by the adhesive tabs. All forces are transferred here, especially in the central area of the pallet, where the greatest moments occur, for example, when bumping from the side, solely via the fold lines from the upper part to the lower part and vice versa.
  • the assembly turns out to be relatively unfavorable for these edge connecting elements, which cannot be fastened to one another and have their only counter bearing in the channels.
  • the punching out of the internal cutting lines of the flaps must be carried out extremely precisely in order not to weaken the stamping Create fold line. In the length of the pallet there is a waste that goes beyond the actual usable length practically around the height of the side flaps. A connection between the upper and lower part the interior of the pallet to achieve sufficient torsional rigidity is completely absent.
  • the invention is based on the object to provide a material-saving, easy to assemble as well as torsion-resistant and kink-resistant, in various directions accessible under the range described in the flat state, i.e. a convenient form of space, delivered by the corrugated cardboard processor to the user and in this in a simple and can be erected quickly and reliably in a cost-effective manner, in particular by machine, in large numbers.
  • the support webs can be punched out of these, articulated on one side foldable via crease lines, without significant weakening of the main supporting surfaces of the blanks, in such a way that they engage in corresponding recesses on the other blank by means of fastening lugs.
  • the shape of the blanks is provided in such a way that no undercuts occur in spite of the box profiles of the edge supports and support channel, which determine the strength, so that the blanks can be produced and largely prepared on conventional corrugated cardboard processing systems so that they are flat, transport-friendly Can be delivered in a state that can be continuously erected and assembled by the user (consumer) using simple mechanical means.
  • the ease of transport results from the rectangular basic shape of both blanks without connecting tabs or the like which are outstanding over their contours.
  • the pallet can optionally be driven under on all sides and that the edge girders, the inner support channel and those extending into the edge girders Spacer sections have recesses to form loading openings. As will be shown below, these loading openings can be realized without impairing the load capacity of the pallet and can even be used for further stabilization measures.
  • the edge supports, the inner support trough and the spacer sections are provided with recesses for the fork of a forklift or lift truck, provided that openings are provided in the outer surfaces of the edge supports and openings are aligned with the openings in the edge support inner surfaces and in the support trough, while, with Breakthroughs and openings in alignment, which are at least partially determined by punched-out support flaps articulated about vertical axes, the width of which essentially corresponds to the inner width of the channel-shaped edge girders and which can be folded into the latter as well as therein are lockable.
  • the weakening in the side surfaces which is required for the purpose of forming forklift openings, is practically compensated again by not simply cutting out the windows, but instead using the punched-out parts for supporting purposes in relation to the other blank part, the supporting flaps preferably being used extend over the entire height of the edge beams and thus have a vertical support.
  • the inner support channel is more central, third (DE-AS 11 07 499) Carrying spar provided and practically forms the central axis of the pallet.
  • the support webs can preferably be arranged on the second blank carrying the spacer webs and engage in the open edge girders and, if appropriate, the inner support channel.
  • the support webs can expediently be arranged on corresponding positions on the edge supports or the support channel and essentially correspond in width to that of the edge support or support channel, so that they have the box shape of the edge support or support channel both vertically and horizontally support and thus contribute significantly to the high rigidity of the pallet.
  • the forklift openings can extend downward from the upper edges of the inner edge surfaces or the support channel and can be cut out (punched) on three sides from the main surface of the blank such that the cut-out parts serve as tongues in the plane of the connection with the other blank Main area between the edge beams or the support channel remain.
  • the punched-out part extends with the folded edge support or folded support channel beyond the creases required for folding into an area above the respective channel and thus extends the area, which results in a significantly increased stiffness.
  • the recesses can be used even better to increase the overall pallet production and the parts to be cut free for their production can also perform a vertical support function in addition to a horizontal holding function for the edge supports and support channel, it is furthermore provided that the openings in the outer surfaces of the edge supports are at least partly by punched-out, pivotally articulated support straps are determined, the width of which essentially corresponds to the inner width of the edge girders and which can be folded into the latter and can be positively locked with the inner surfaces. It is advantageous if the support tabs can be non-positively and / or positively connected to the support flaps, which results in an even more intensive connection between the two blanks and a significant increase in the diagonal stiffness.
  • connection can be done by gluing, stapling, hooking or similar conventional measures.
  • interconnected support straps and support flaps can be locked by support webs of the second blank which are arranged in this area and can be folded into the edge supports.
  • the waves of the material in the blank comprising the edge supports and the support channel can preferably run in the transverse direction of the pallet and in the other blank carrying the spacer sections in the longitudinal direction.
  • the transverse course of the shaft in the cross-section comprising the edge girders and the support channel in turn results in an optimal load-bearing capacity of the edge supports and the support channel as well as the support tabs in the vertical direction and the possibility of absorbing high belt moments in the main surface.
  • predetermined breaking points of a defined width can be provided on at least one of the blanks, preferably on the second blank and in the area of the windows or loading openings. This can cause damage that otherwise occurs when strapping the goods stacked on the pallet can be largely avoided with metal or plastic tape by pulling it onto the pallet, because when the fastening or holding tapes are placed at the predetermined breaking points, these areas are raised to the defined width when the cargo is moved inwards and also as edge protection for the cargo serve without further tearing of the pallet outside the predetermined breaking points.
  • the blanks can preferably consist of multi-layer, preferably two-layer corrugated cardboard. With this choice of material, you will have to balance the strength requirements of the pallet with the weight and cost of the corrugated cardboard material used for it.
  • the transport pallet according to the invention is preferably produced semi-automatically or fully automatically, since manual erection does not result in the weight of the blanks for the usually required pallet sizes, because of the bulkiness of the blanks and with regard to the necessary folding forces or the restoring forces resulting from the material Comes into consideration.
  • the first blank having the edge carriers can be pre-broken in stages in a folding and pressing station, first the first edge carrier, then the support channel and finally the second edge carrier being pre-broken, and its surfaces directed against the other, second blank can are sprayed with glue while at the same time breaking the spacer sections of the second blank, whereupon the latter is then placed on the first blank or inserted with the spacer sections into the edge girders, as well as pressure from above and laterally on the parts supported according to the shape of the edge girders and support channel can be exercised.
  • the process thus involves the blank comprising the edge girders and support channel being broken in three stages and then provided with the adhesive at all required points, while at the same time the other blank is being pre-crushed, so that the time required for the assembly can be kept relatively short and only one for this manufacturing process , two people are required.
  • the supporting webs and, if appropriate, the supporting flaps and flaps, the latter preferably being pressed into their locked supporting position by means of gluing, stapling, hooking or the like, can advantageously be pressed, which can be done manually or automatically on another machine station.
  • a system is advantageously proposed in which a first erection station is used to gradually break the first blank, which has the edge girders and the support channel, and to apply glue to this pre-broken blank, to pre-break the spacer sections of the other, second blank and a second erection station is provided for the folded joining of the two blanks.
  • Such a system can be comfortably operated by one or two people, the first and second erection stations being semi-automatic machine units. These can be produced with a reasonable amount of design effort and make a significant contribution to the economic realization of the object on which the invention is based.
  • the first erection station can be equipped with stops, alignment strips or similar positioning elements Troughs for receiving the to be folded or folded edge supports and support trough of the first blank equipped support table and a press ram over one of the troughs, preferably the central trough.
  • the press ram is preferably provided in such a way that it interacts with press elements which can be swiveled in laterally as a counter-form for overpressing the preliminary break, as a result of which the restoring forces of the material used can be effectively prevented.
  • the second erection station can advantageously include form-changeable supports for receiving the pre-folded blank on the second erection station, wherein these supports can be movable from an essentially trapezoidal starting position into an essentially rectangular press position. So that the second erection station is designed so that the pre-folded on the first erection station can be accommodated comfortably, its regression is taken into account due to the restoring forces, but at the same time it can be deformed into the position required for the finished pallet.
  • the latter can comprise a glue slide which can be moved in one of its main directions, preferably its longitudinal direction, above the supports, this glue slide acting vertically in accordance with the placement position of the blank and thus the position of the adhesive surfaces inner glue nozzles for the adhesive surfaces of the blank and inclined to act outer glue nozzles for the inner sides of the outer walls of the edge supports and the support tabs thereof.
  • a pressure stamp designed as a flat plate is provided, which can be moved from its rest position into a working position directly above the support moved in a rectangular press position, while still lateral pressure plates of the supports in a vertical position and thus in a surrounding the pallet from the side of the edge beams horizontal press position are movable.
  • a pre-crushing device for the spacer sections can be arranged on the side of a frame of the second erection station.
  • a pallet is formed from essentially two blanks, the formation of which is extremely machine-friendly with respect to the folding operations to be carried out and their processing is thus possible on a continuously operating machine.
  • the cuts do not form any undercuts, and they can be unfolded in only one direction.
  • the sheet-like connection of the two blanks in combination with the box-shaped support bars and the support webs as well as other support elements and flaps results in a high torsional rigidity and thus a load capacity, which such pallets are particularly suitable as disposable pallets, which only need to be erected by the loader makes, although multiple use is also possible.
  • a pallet 1 constructed according to the invention from corrugated cardboard (FIG. 1) essentially comprises a first blank 2 and a second blank 3, both consisting of corrugated cardboard and provided in such a way that their corrugation directions (see FIGS. 2 and 3) are in the finished pallet Cross 1.
  • the first blank 2 forms the base, especially with respect to the main or loading surface of the pallet, and the second blank 3 forms the top layer.
  • loaders 41 and loading openings 42 in the longitudinal or transverse direction - known per se from conventional pallets educated.
  • the first blank 2 can be unfolded from a substantially rectangular corrugated cardboard blank into the shape shown in FIG. 2, with sufficiently well-known folding and folding lines, for example crease lines (dashed or shown in thin lines), being provided for the folding at corresponding folding points, such as they are common in the corrugated cardboard industry.
  • support beam-like edge supports 21 are formed on the first blank, which have a U-shaped or channel-like shape have and determine outer surfaces 21a and inner surfaces 21i.
  • a support channel 22 constructed in a similar manner, which is also designed and acts in the manner of a support beam, is provided.
  • the rectangular passages or loaders 41 which extend in the longitudinal direction of the blank and thus the finished pallet, into which the forks of a forklift truck, pallet truck or the like. can intervene for the purpose of lifting and / or transporting the pallet 1.
  • openings 24 are made in the outer surfaces 21a in the direction of the width of the pallet, and openings 25 are made in the inner surfaces 21i and in the side walls of the support channel 22. Openings 24 and openings 25 together form the loading openings 42.
  • the openings 24 are recesses delimited by support tabs 28, the width of these support tabs corresponding to the width of the edge supports 21 and having lugs 29 on their free vertical edges with respect to a vertical pivot axis (not designated) which enter into slot-shaped recesses 23 in can snap the inner surfaces 21i.
  • the openings 25 are formed by three-sided punching of tongues 26, which remain firmly connected on one side with the cutting material and extend from the folding or crease lines provided for the edge support 21 or the support channel 22 such that these tongues when folding the edge support and support channel 26 form an extension of the main surface of the unfolded blank 2, which main surface forms an adhesive surface 27, beyond the fold lines.
  • the tongues 26 and thus the openings 25 are dimensioned such that the tongues 26 practically cover the entire support channel 22 and mutually opposing tongues 26 butt, so that a quasi-closed surface is created in this area.
  • the protrusion of the tongues 26 over the fold lines for the edge girders and the support channel contributes significantly to an increase in the load-bearing capacity, in particular the resistance to buckling and torsion.
  • the tongues 26 located above the edge supports are provided with a circular recess 26a corresponding to the pivoting radius of the support tabs 28.
  • the second blank 3 also consists of a stamped blank which is rectangular in its outer contours and, corresponding to the edge supports 21 of the first blank, has angled foldable spacer sections 31 along its longitudinal edges, the height of which, in conjunction with the corresponding outer surfaces 21a of the edge supports 21, essentially corresponds to the height of the pallet 1 certainly. These spacer sections 31 abut against the outer surfaces 21a when the pallet is assembled.
  • the second blank 3, as can be seen from FIG. 3, essentially forms the shape of a flat, inverted U in the unfolded state, the legs of which are determined by the spacing sections 31 and the web of which forms a main surface 34, which is the area connection with the first blank 2 serves.
  • windows 35 are provided in the spacer sections 31 by pre-punching during the manufacture of the blank, which are initially closed by support flaps 36 stamped free on three sides and articulated via one-sided fold lines.
  • these flaps 36 are opened and connected to the support tabs 28, for example by gluing or stapling, and locked in the slots 23.
  • the support flaps 34 are designed as horizontal support webs, and their width is dimensioned such that they extend over the entire width of the edge supports 21 and into the slot-shaped recesses 23 provided in the inner surfaces 21i Help can be provided by noses 33 provided on them.
  • the width of the vertical support webs 32 corresponds essentially to the width of the edge supports 21 or the support channel 22, and the support webs 32 are arranged at the positions of that channel corresponding points of the second blank 3, so that the support webs 32 are folded into the channels and their Lugs 33 can engage in the slot-shaped recesses 23.
  • the support webs 32 can lie tightly against the side walls of the grooves of the edge supports 21 or the central support beam 22, although their main direction of loading is the vertical.
  • the corrugation direction of the corrugated cardboard runs in the longitudinal direction of the blank, so that the wave course in the vertical support webs 32 is vertical and in the horizontal support webs 36 horizontally, which results in corresponding, optimal load conditions .
  • the shaft runs in the transverse direction, which means that the edge supports 21 and the support channel 22 and the support brackets 28 can be loaded vertically, and high bending moments in the main surface 27 with the tongues 26 can be absorbed.
  • the inner support webs 32 on the edge are somewhat narrower than the others, so that a sufficient edge web (not designated) remains above the window 35 to delimit the same.
  • FIG. 4 A variant of the second blank 3 is shown in FIG. 4.
  • the spacer sections 31 of the embodiment of FIG. 3 are formed by box-shaped, rectangularly folded support elements 37, which therefore have a higher section modulus than the straight-spaced spacer sections 31.
  • the width of these box-shaped support elements 37 corresponds to the internal dimensions of the edge supports 21, so that the support elements 37 can easily be inserted into the edge supports. If the support elements 37 run continuously over the entire length of the second blank 3, the tongues 26 need not be formed in the region of the outer edge supports of the first blank 2.
  • the two blanks 2 and 3 provided with the necessary punchings and folding lines, can be delivered to the user in a flat state by the corrugated cardboard manufacturer, so that there is a minimal transport volume for this transport and the parts can be stored in a space-saving manner until they are used.
  • the parts prepared in this way are then erected, for example, on a semi-automatic erecting device, as shown in FIGS. 5 and 6, according to the diagram in FIG. 7 into the shapes shown in FIGS. 2 and 3 and 4, respectively. These are put together in pairs, so that the final shape of the pallet 1 results.
  • two erection stations 5 and 6 can be seen, in addition to which, advantageously in the vicinity of the respective first processing station, are the first blanks 2 and second blanks 3 delivered on pallets by the corrugated cardboard producer.
  • the first erection station 5 serves for the gradual pre-breaking of the first blank 2 in the order of the stages I, II and III shown in FIG. 7, namely in accordance with the crease lines, which in the initial stage I and in the left part of the stage II as solid lines 20 shown and are attached by the corrugated cardboard producer.
  • the first erection station 5 comprises, on a frame 50, a support table 51 which is equipped with stops, straightening strips or similar positioning elements (not shown here) and with channels 52. The latter also serve to align and accommodate the edge girders of the first blank 2 which are to be folded or folded step by step in accordance with I, II and III (FIG. 7).
  • a pre-breaking device 64 is provided for the spacer sections 31 of the second blank 3, while on the frame form-changeable supports 61 and side pressure plates 611 cooperating with them, which can be moved by means of pressure cylinders 612 according to the arrows E, are arranged.
  • the shape-changing pads 61 are movable from a trapezoidal starting position A shown in solid lines, which corresponds to the shape of the pre-cuts of the blank 2 in stage III, into a rectangular press layer B shown in dashed lines, with the purpose of holding or pressing during Assembling the blanks, the side pressure plates 611 are moved according to arrow E into the position also shown in broken lines. However, before this movement takes place from the trapezoidal starting position A into the pressing position B, the blank 2 placed in the supports 61 is sprayed with glue.
  • a glue carriage 62 which can be filled from a glue container 7 arranged near the second erection station 6, is arranged on the frame 60 so as to be movable in the direction of arrow L (FIG.
  • the glue slide 62 comprises inner glue nozzles 621 and outer glue nozzles 622.
  • the inner glue nozzles 621 are used for spraying glue on the main surfaces 27 of the blank 2, the outer, inclined glue nozzles 622 for applying glue to the inner sides of the outer surfaces 21a of the edge supports 21, including the support tabs 28.
  • the main surfaces lying against one another can be provided with glue in the form of points, lines or planes and thus glued to one another.
  • glue in the form of points, lines or planes and thus glued to one another.
  • predetermined breaking points 80 defined by perforations can be formed in the edge region above the windows 35. These predetermined breaking points 80 tear in a conventional manner when the loaded pallet is strapped, if the load does not protrude beyond the edge of the pallet, and form an edge protection. The strapping is passed through the loading openings 42.
  • the two blanks can be fastened to one another by means of staples, as long as a sufficiently intimate connection between the two blanks is achieved and the cross-shaft connection is effective.

Landscapes

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

Claims (24)

  1. Palette de transport (1), pouvant être déplacée par un chariot élévateur à fourches, rectangulaire, pouvant être fabriquée à partir d'au moins deux découpes (2, 3) en carton ondulé pouvant être assemblées l'une à l'autre, palette dans laquelle les découpes peuvent, au moins partiellement, être assemblées surface contre surface l'une à l'autre, et sont disposées de façon que les directions de leurs cannelures se croisent ; que la première découpe (2) comporte des entretoises marginales (21), en forme de longeron, s'étendant le long d'une paire de bords opposés de la palette, entretoises qui, sur leur côté dirigé vers l'autre découpe (3), qui est la deuxième découpe, sont essentiellement ouvertes et peuvent être insérées dans les éléments de soutènement (31), et, entre les deux entretoises marginales, au moins une gouttière de soutènement intérieure (22), en forme de longeron ; que, sur la deuxième découpe (3), soient disposés des éléments d'écartement (31), repliables, dont la hauteur correspond à celle de la palette et s'étendant, sur toute la longueur de la découpe, le long de ses bords correspondant aux entretoises marginales (21) opposées et en forme de longeron ; et que les éléments de soutènement soient déformables par rapport à une surface principale (24), formant une surface portante de la palette, de la deuxième découpe, caractérisée en ce que :
    a) les éléments de soutènement sont constitués sous la forme de cloisons de soutènement (32) et peuvent être escamotés vers l'extérieur, à partir de la surface fermée d'au moins l'une des découpes, et, par coincement dans des évidements appropriés (23), engrènent dans l'autre découpe (respectivement 2 ou 3) ; et
    b) la palette (1) peut, sur tous ses côtés, être transportée par un chariot élévateur à fourches, ce pour quoi les entretoises marginales (21), la gouttière portante intérieure (22), de même que les éléments d'écartement (31) s'étendant dans les entretoises marginales comportent des évidements (24, 25, 35) destinés à former des ouvertures de chargement (42), les évidements aménagés dans les surfaces extérieures (21a) des entretoises marginales (21) étant conçus comme des percées (24) et, dans les surfaces intérieures (21i) des entretoises marginales et dans la gouttière portante (22), sous forme d'ouvertures (25) en affleurement avec les percées (24), tandis que, à niveau avec les percées (24) et les ouvertures (25), des fenêtres (35), qui, au moins partiellement, sont définies par des rabats de soutènement (36), dégagés par découpage et articulés en pivotement, se trouvant dans les éléments d'écartement (31).
  2. Palette de transport selon la revendication 1, caractérisée en ce que les cloisons de soutènement (32) sont disposées contre la découpe (33) qui porte les éléments d'écartement (31) et engrènent dans les entretoises marginales ouvertes (21) et éventuellement dans la gouttière portante intérieure (22).
  3. Palette de transport selon la revendication 1 ou 2, caractérisée en ce que les cloisons de soutènement (32) sont disposées en des positions correspondant aux entretoises marginales (21) ou à la gouttière portante (22), et pour l'essentiel ont une largeur correspondant à celle des entretoises marginales (21) ou de la gouttière portante (22).
  4. Palette de transport selon l'une des revendications 1 à 3, caractérisée en ce que les rabats de soutènement (36) sont articulés de façon à pouvoir pivoter autour des axes verticaux, que leur largeur correspond pour l'essentiel à la largeur intérieure des entretoises marginales (21) en forme de gouttière, et qu'ils peuvent être rabattus dans ces dernières et peuvent y être verrouillés avec blocage par correspondance de forme.
  5. Palette de transport selon l'une des revendications 1 à 4, caractérisée en ce que les ouvertures (25) s'étendent vers le bas à partir des bords supérieurs soit des surfaces intérieures (21i) des entretoises marginales, soit de la gouttière portante (22), et sont dégagées (découpées) sur trois côtés, à partir de la surface principale (27) de la découpe (22) de telle sorte que les éléments dégagés restent, sous forme de languettes (26), dans le plan de la surface principale (27), servant à l'assemblage avec l'autre découpe (23), entre les entretoises marginales (21) ou la gouttière portante (22).
  6. Palette de transport selon l'une des revendications 1 à 5, caractérisée en ce que les percées (24), aménagées dans les surfaces extérieures (21a) des entretoises marginales (21), sont, au moins partiellement, définies par des pattes de soutènement (28), dégagées par découpage, articulées de façon à pouvoir pivoter autour d'axes verticaux, pattes dont la largeur pour l'essentiel correspond à la largeur intérieure des entretoises marginales (21) et qui peuvent être rabattues dans ces derniers et peuvent être verrouillées, en blocage avec correspondance de forme, avec les surfaces intérieures (21i).
  7. Palette de transport selon la revendication 6, caractérisée en ce que les pattes de soutènement (28) peuvent être assemblées aux rabats de soutènement (36) par une liaison dynamique et/ou par blocage avec correspondance de forme.
  8. Palette de transport selon la revendication 7, caractérisée en ce que les pattes de soutènement (28) et les rabats de soutènement (36), reliés les uns aux autres, peuvent être verrouillés par des cloisons de soutènement (32a) de la deuxième découpe (3), cloisons disposées dans cette zone et pouvant être rabattues dans les entretoises marginales (21).
  9. Palette de transport selon l'une des revendications 1 à 8, caractérisée en ce que les évidements ou les percées (24), ouvertures (25), fenêtres (35), pattes de soutènement (28) et/ou rabats de soutènement (36) s'étendent essentiellement sur toute la hauteur de la palette (1).
  10. Palette de transport selon l'une des revendications 1 à 9, caractérisée en ce que les éléments d'écartement sont conçus sous forme d'éléments portants (37), en forme de caisson, adaptés aux dimensions des entretoises marginales (21) en forme de gouttière.
  11. Palette de transport selon la revendication 10, caractérisée en ce que les cloisons de soutènement (32) prévues dans la zone des éléments portants (37) en forme de caisson engrènent dans des évidements (38) aménagés dans la surface de fond des éléments portants (37).
  12. Palette de transport selon l'une des revendications 1 à 11, caractérisée en ce que les cannelures du matériau courent dans la direction transversale de la palette (1) dans la découpe qui englobe les entretoises marginales (21) et la gouttière portante (22), et dans le sens longitudinal dans l'autre découpe (3), qui porte les éléments d'écartement (31).
  13. Palette de transport selon l'une des revendications 1 à 12, caractérisée en ce qu'on prévoit, sur au moins l'une des découpes (2, 3), de préférence sur la deuxième découpe (3), et dans la zone des fenêtres (35) ou des ouvertures de chargement (42), des zones de rupture (80), de largeur définie.
  14. Palette de transport selon l'une des revendications 1 à 3, caractérisée en ce que les découpes (2, 3) sont constituées d'un carton ondulé à plusieurs plis, de préférence à deux plis.
  15. Procédé de fabrication d'une palette de transport selon l'une des revendications 1 à 14, caractérisé en ce qu'on précasse par étapes, dans un poste de pliage et de pressage, la première découpe (2), qui comporte les entretoises marginales (21), ce pour quoi on précasse d'abord la première entretoise marginale (21), puis la gouttière portante (22) et enfin la deuxième entretoise marginale (21), et qu'on projette de la colle sur ses surfaces (21, 26, 27), dirigées contre l'autre découpe (3), qui est la deuxième découpe ; que, simultanément, on précasse les éléments d'écartement (31) de la deuxième découpe (3); puis que l'on place cette dernière sur la première découpe (2) ou on l'installe, avec les éléments d'écartement (31), dans les entretoises marginales (21), et on exerce, par le haut et latéralement, une pression de serrage sur les pièces soutenues dont la forme correspond à celle des entretoises marginales et de la gouttière portante ; et que, après que la palette (1), pliée et ayant reçu la colle, a été enlevée du poste de pliage et de pressage, les cloisons de soutènement (32), et éventuellement les pattes de soutènement (28) et les rabats de soutènement (36), ces derniers de préférence grâce à un assemblage réciproque par collage, piquage, accrochage ou analogue, sont pressées jusqu'à leur position de soutènement, bloquée.
  16. Installation de fabrication d'une palette de transport selon l'une des revendications 1 à 4, caractérisée en ce que, pour précasser par étape la première découpe (2), qui comporte les entretoises marginales (21) et la gouttière portante (22), on prévoit un premier poste de montage (5), et, pour appliquer la colle sur cette découpe ainsi précassée, pour précasser les éléments d'écartement (31) de l'autre découpe (3), qui est la deuxième découpe, et pour réunir par pliage les deux découpes (2 et 3), un deuxième poste de montage (6).
  17. Installation selon la revendication 16, caractérisée en ce que le premier et le deuxième postes de montage sont des machines (5, 6) à fonctionnement semi-automatique.
  18. Installation selon la revendication 16 ou 17, caractérisée en ce que le premier poste de montage (5) comporte une table (51) munie de butées, de barres directrices ou autres éléments analogues de positionnement, ainsi que de gouttières (52) destinées à recevoir les entretoises marginales (21) à plier ou pliées et la gouttière portante (22) de la première découpe (2), ainsi qu'un poinçon de presse (53) au-dessus de l'une des gouttières (52), de préférence au-dessus de la gouttière centrale.
  19. Installation selon la revendication 18, caractérisée en ce que le poinçon de presse (53) coopère avec des éléments de pressage rabattables par pivotement, servant de contre-forme destinée à appliquer une pression pour le précassage.
  20. Installation selon l'une des revendications 16 à 19, caractérisée en ce que le deuxième poste de montage (6) comporte des supports (61), déformables, destinés à recevoir la découpe (2) ayant subi un prépliage dans le premier poste de montage (5), ces supports pouvant se déplacer d'une position de départ (A), essentiellement trapézoïdale, à une position de pressage (B), essentiellement rectangulaire.
  21. Installation selon la revendication 20, caractérisée en ce que le deuxième poste de montage (6) comporte un chariot de collage (62), pouvant se déplacer dans l'une de ses directions principales, de préférence dans sa direction longitudinale (L), au-dessus des supports (61).
  22. Installation selon la revendication 21, caractérisée en ce que le chariot de collage (62) comporte des buses intérieures de collage (621), à action verticale, destinées aux surfaces de collage (27) de la découpe (2), et des buses extérieures de collage (622), agissant d'une manière inclinée par rapport à cette dernière, destinées aux côtés intérieures des parois extérieures des entretoises marginales (21).
  23. Installation selon l'une des revendications 20 et 22, caractérisée en ce qu'au-dessus des supports (61) est prévu un poinçon de pressage (63), conçu comme une plaque plane, et qui peut se déplacer de sa position de repos à une position de travail immédiatement au-dessus du support (61) qui a été mis dans sa position rectangulaire de pressage, et que des plaques de pressage latérales (611) des supports (61) peuvent se déplacer sur une position verticale et donc dans une position de pressage, horizontale, qui entoure la palette (1) à partir du côté des entretoises marginales (21).
  24. Installation selon l'une des revendications 16 à 23, caractérisée en ce qu'un dispositif de précassage (64) destiné aux éléments d'écartement (31) de l'autre découpe (3) est disposé latéralement contre un bâti (60) du deuxième poste de montage.
EP85114505A 1984-11-16 1985-11-14 Palette de transport rectangulaire pouvant être fabriquée de deux flans en carton réunissables entre eux Expired - Lifetime EP0183140B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85114505T ATE66884T1 (de) 1984-11-16 1985-11-14 Aus mindestens zwei miteinander verbindbaren wellpappe-zuschnitten herstellbare rechteckige, unterfahrbare transportpalette.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3442439 1984-11-16
DE19843442439 DE3442439A1 (de) 1984-11-16 1984-11-16 Aus mindestens zwei miteinander verbindbaren wellpappe-zuschnitten herstellbare rechteckige transportpalette

Publications (3)

Publication Number Publication Date
EP0183140A2 EP0183140A2 (fr) 1986-06-04
EP0183140A3 EP0183140A3 (en) 1988-08-10
EP0183140B1 true EP0183140B1 (fr) 1991-09-04

Family

ID=6250786

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Application Number Title Priority Date Filing Date
EP85114505A Expired - Lifetime EP0183140B1 (fr) 1984-11-16 1985-11-14 Palette de transport rectangulaire pouvant être fabriquée de deux flans en carton réunissables entre eux

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EP (1) EP0183140B1 (fr)
AT (1) ATE66884T1 (fr)
DE (2) DE3442439A1 (fr)
DK (1) DK530285A (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8707224U1 (de) * 1987-05-16 1988-09-22 Europa Carton AG, 20095 Hamburg Unterfahrbare Transportpalette mit im wesentlichen rechteckigem Grundriß aus in Zuschnittform bereitgestelltem, faltbarem Material wie Wellpappe
DE8909317U1 (de) * 1989-07-29 1989-12-14 Europa Carton Ag, 2000 Hamburg Unterfahrbare Transport-Kleinpalette
AU674700B2 (en) * 1992-11-18 1997-01-09 Chow Pak Lim Paper pallet
US5592885A (en) * 1994-09-16 1997-01-14 National Pallet Llc Collapsible pallet
SE508738C2 (sv) 1997-04-01 1998-11-02 Easy Ab Transportanordning
WO2000020290A1 (fr) 1998-10-08 2000-04-13 Young Robson T Jr Palette haute resistance a parois repliables dotee d'une structure a alignement automatique
FR2935963B1 (fr) * 2008-09-15 2012-08-03 Ds Smith Kaysersberg Dispositif de manutention de plaques en carton.
US9919834B2 (en) 2014-01-09 2018-03-20 Oria Collapsibles, Llc Pallet construction line and assembly

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2908464A (en) * 1956-01-26 1959-10-13 Bird & Son Pallet
DE1107499B (de) * 1958-11-10 1961-05-25 Martinson Machine Co Maschine zum Herstellen von fuer einmaligen Gebrauch bestimmten Pappuntersaetzen
US3911834A (en) * 1973-09-13 1975-10-14 Int Paper Co Pallet
US3952672A (en) * 1974-12-19 1976-04-27 International Paper Company Corrugated disposable pallet
US4100859A (en) * 1976-09-07 1978-07-18 Clark Jr Alexander B Fork lift pallet
US4185565A (en) * 1978-09-14 1980-01-29 Liberty Carton Co. Corrugated pallet

Also Published As

Publication number Publication date
EP0183140A3 (en) 1988-08-10
EP0183140A2 (fr) 1986-06-04
DE3442439A1 (de) 1986-05-28
DE3442439C2 (fr) 1987-08-13
ATE66884T1 (de) 1991-09-15
DE3583990D1 (de) 1991-10-10
DK530285D0 (da) 1985-11-15
DK530285A (da) 1986-05-17

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