EP1588952B1 - Palette aus Karton - Google Patents

Palette aus Karton Download PDF

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Publication number
EP1588952B1
EP1588952B1 EP04009201A EP04009201A EP1588952B1 EP 1588952 B1 EP1588952 B1 EP 1588952B1 EP 04009201 A EP04009201 A EP 04009201A EP 04009201 A EP04009201 A EP 04009201A EP 1588952 B1 EP1588952 B1 EP 1588952B1
Authority
EP
European Patent Office
Prior art keywords
pallet
cardboard
cardboard tube
tube
feet
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
EP04009201A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1588952A1 (de
Inventor
Horst Schader
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.)
Rheingold AG
Original Assignee
Rheingold 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
Priority to DE502004000300T priority Critical patent/DE502004000300D1/de
Application filed by Rheingold AG filed Critical Rheingold AG
Priority to PL04009201T priority patent/PL1588952T3/pl
Priority to EP04009201A priority patent/EP1588952B1/de
Priority to SI200430015T priority patent/SI1588952T1/sl
Priority to ES04009201T priority patent/ES2259423T3/es
Priority to AT04009201T priority patent/ATE318239T1/de
Priority to CNB2005800118002A priority patent/CN100572205C/zh
Priority to RU2006140791/11A priority patent/RU2376224C2/ru
Priority to PCT/EP2005/002350 priority patent/WO2005100178A2/de
Priority to MXPA06012038A priority patent/MXPA06012038A/es
Priority to US10/597,071 priority patent/US20070151488A1/en
Publication of EP1588952A1 publication Critical patent/EP1588952A1/de
Application granted granted Critical
Publication of EP1588952B1 publication Critical patent/EP1588952B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/0015—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor specially adapted for perforating tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
    • B26D3/16—Cutting rods or tubes transversely
    • B26D3/164—Cutting rods or tubes transversely characterised by means for supporting the tube from the inside
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
    • B26D3/16—Cutting rods or tubes transversely
    • B26D3/167—Cutting tubes having a non-circular cross-section
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/18—Perforating by slitting, i.e. forming cuts closed at their ends without removal of material
    • B26F1/22—Perforating by slitting, i.e. forming cuts closed at their ends without removal of material to form non-rectilinear cuts, e.g. for tabs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31C—MAKING WOUND ARTICLES, e.g. WOUND TUBES, OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31C11/00—Machinery for winding combined with other machinery
    • B31C11/02—Machinery for winding combined with other machinery for additionally shaping the articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D5/00—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles
    • B31D5/0086—Making hollow objects
    • 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
    • B65D19/002—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 more than one element
    • B65D19/0024—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 more than one element forming discontinuous or non-planar contact surfaces
    • B65D19/0026—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 more than one 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
    • B65D19/38—Details or accessories
    • B65D19/40—Elements for spacing platforms from supporting surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00009—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
    • B65D2519/00009—Materials
    • B65D2519/00084—Materials for the non-integral separating spacer
    • B65D2519/00089—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
    • B65D2519/00323—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
    • B65D2519/00368—Overall construction of the non-integral separating spacer
    • B65D2519/00388—Cell type, e.g. honeycomb
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00258—Overall construction
    • B65D2519/00398—Overall construction reinforcements
    • B65D2519/00402—Integral, e.g. ribs
    • B65D2519/00412—Integral, e.g. ribs on the base surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00547—Connections
    • B65D2519/00552—Structures connecting the constitutive elements of the pallet to each other, i.e. load supporting surface, base surface and/or separate spacer
    • B65D2519/00557—Structures connecting the constitutive elements of the pallet to each other, i.e. load supporting surface, base surface and/or separate spacer without separate auxiliary elements
    • 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
    • B65D2519/00736—Details
    • B65D2519/0086—Protection against environmental hazards, e.g. humidity, bacteria, fire

Definitions

  • the present invention relates to a pallet foot for a pallet according to the preamble of claim 1.
  • Such a pallet base is previously known from US-A-3,602,158 which consists of cut cardboard provided with notches.
  • US-A-5,365,857 predominantly corrugated board or multilayer paper is used, the pallet being folded from a single ply of such material.
  • Pallets made of cardboard material have the advantage that they can be supplied by the recipient of the goods the paper recycling cycle. But also for reasons of weight find such pallets more and more use, since they are lighter than pallets made of wood and therefore lower transport costs.
  • a cardboard or corrugated cardboard existing pallet which has feet, which consist of several, parallel and spaced apart and together with the upper deck integrally formed runners.
  • the skids In the folded arrangement, the skids have a triangular or square cross-section.
  • a pallet which uses roll cores of paper, carpet and similar material rolls as support elements, wherein the roll cores are arranged in two layers one above the other and perpendicular to one another.
  • a pallet system which consists of a flat upper deck, which is provided with tubular runners.
  • the runners are folded from a flat cardboard box.
  • separate cuboid reinforcing elements are introduced into the skids, which consist for example of wound or honeycomb cardboard material.
  • the carton pallets of the prior art disclose various disadvantages in terms of their low strength or stability, costly production, material consumption and large transport volume for shipping the pallet itself. Furthermore, the known carton pallets are prone to water and moisture due to the capillary action of the paperboard material.
  • a pallet foot for a pallet which is characterized in that the cardboard tube consists of wound (recycled) paper layers.
  • Such a pallet foot can be quickly and easily made from a square cardboard tube. Since the starting material is a pipe that is merely machined, no additional board elements need to be made and assembled.
  • the stiffeners of the load-bearing areas are formed purely by the cardboard material present in the cardboard tube. This enables an absolutely waste-free production of the pallet feet.
  • the tubular starting material is also particularly stable, since there are no splices, pronounced seams or similar. but preferably is wound in one piece. Furthermore, by the infill of the load-bearing areas by the stiffening walls on the one hand stable and on the other hand very light structure is created, which also resists high loads.
  • the cardboard tube has a quadrangular or octagonal cross-sectional shape.
  • Palettenfuß forms a flat support surface for a cover plate of the pallet and a flat bearing surface on the floor, which can distribute occurring loads over a large area.
  • the cardboard tube consists of a cardboard material which has been hardened by means of water glass.
  • the hardening of the cardboard tube with water glass gives the pallet base produced therefrom a particularly high strength.
  • water glass is very inexpensive as a hardening and adhesive material, since it costs only about 1/3 of the adhesives commonly used.
  • water glass releases no toxic fumes when cured in air.
  • the cardboard tube is protected from water and moisture after curing, so that the pallet can also be used outdoors.
  • the closed portions of the plate feet have side walls which are provided with indentations that are substantially parallel to the load direction.
  • the indentations or corrugations reinforce the sidewalls of the load-bearing areas and increase the buckling resistance compared to a flat surface. The impressions can also merge into each other, so that a waveform is created.
  • the closed areas are divided into three or four chambers.
  • the individual chambers of the closed regions preferably have the same shape.
  • the shape and number of chambers determined significantly the stability of the pallet.
  • the preferred closed chambers can also absorb particularly good lateral forces in addition to the compressive forces by the weight of the cargo, which often occur during transport and loading of the pallet.
  • the stiffening walls are folded at folding grooves, which run parallel to the load direction.
  • the folding grooves facilitate accurate folding of the stiffening walls. Since the folding grooves run in the load direction, the stiffening walls are perpendicular within the load-bearing areas and therefore transmit the pressure forces occurring in the main load direction in the bottom surface.
  • the stiffening walls of a closed area are glued together flat. Gluing the stiffening walls substantially increases the load capacity of the load-bearing areas because the splices can transfer shear forces between the stiffening walls.
  • the cardboard tube has a continuous upper wall and a continuous lower wall, wherein the inwardly folded side walls are bonded to the upper wall and the lower wall.
  • the continuous upper and lower walls of the pallet foot serve as spacers and reinforcements of the load bearing areas.
  • the closed areas furthermore each have at least one lateral window in order to connect the pallet foot to a transverse strut.
  • a pallet having a substantially flat, flat cover plate and at least two pallet feet according to one of claims 1-11.
  • a suitable cover plate for example made of wood, plastic, metal or cardboard is formed with the palency feet a full range, which is adaptable to the particular application.
  • the cover plate is also made of cardboard or recycled cardboard. This provides a completely recyclable cardboard pallet.
  • the pallet feet are glued parallel to each other on the cover plate.
  • the pallet further comprises at least one transverse strut, which is connected to the pallet feet and which extends perpendicular to them.
  • a cross strut By such a cross strut, the stability of the pallet can be extremely increased, so that the material thickness of the cover plate can be reduced.
  • the thickness of the comparatively expensive cover plate could be reduced to about 50% with the same load. As a result, a cost reduction of up to 20% can be achieved.
  • cross member can be used as needed or omitted, so that an individually configurable pallet system is provided.
  • the cross member is made of the same cardboard tube as the pallet feet.
  • the same pipe winding machine can be used.
  • the inventive method also achieves the advantages described above with respect to the pallet feet according to the invention.
  • a pallet foot of a certain length and of a certain strength and load is manufactured.
  • the step of winding can be varied so that different wall thicknesses of the cardboard tube are obtained and thereby also a different load of the pallet base.
  • the method further comprises the step of introducing indentations in the lateral surface of the cardboard tube, wherein the indentations extend substantially parallel to the desired load direction.
  • the depressions or corrugations reinforce the lateral surface of the cardboard tube.
  • the steps of punching cut lines, impressing folding grooves, and inserting indentations are performed simultaneously. This reduces the production time of the pallet foot.
  • the method further comprises the step of introducing the cardboard tube with water glass.
  • the paper strip from which the cardboard tube is wound is pulled through a gluing aggregate, one side of the paper strip being coated on the full surface with waterglass.
  • water glass as an adhesive and hardening agent is only possible because immediately after the winding process of the "Press-stamping-punching process" is performed.
  • By pressing the tube an absolute bond is achieved, which can be achieved in a conventional winding only by a costly post-treatment using high quality adhesives.
  • the winding of the cardboard tube can be done at a much higher winding speed than in conventional methods, since any air bubbles between the paper webs to be bonded are pressed by the pressing of the tube.
  • the method comprises the step of pressing and heating the cardboard tube to cure the cardboard tube bubble-free.
  • the step of pressing and heating is performed simultaneously with the stamping-stamping step.
  • the paperboard fibers are retained and the board surface is smoothed, whereby the pallet base shows a lower moisture absorption.
  • by heating the drying time of the pallet feet is reduced so much that an immediate further processing can take place. In the case of ordinary drying, drying times of up to 2 weeks would otherwise have to be observed.
  • the method further comprises the step of applying adhesives to portions of the stiffening walls to bond the stiffening walls together.
  • a plant for producing pallet feet comprising a pipe-processing machine for punching cutting lines and introducing folding grooves in a lateral surface of a square Cardboard tube and a folding machine for folding stiffening walls along the folding grooves, for forming load-bearing areas of a pallet base.
  • Palettenfiiße can be made quickly and inexpensively from cardboard tubes.
  • the system can operate fully automatically, so that a high number of pallet feet can be produced at low unit costs.
  • the system further comprises a tube winding machine for. Producing an endless cardboard tube and a cutter for cutting the endless cardboard tube to obtain a cardboard tube of a desired length;
  • the tube processing machine has an inner tool that can be inserted into the cardboard tube and wherein the inner tool can be radially spread to abut the inner wall of the cardboard tube.
  • the inner tool has interchangeable working surfaces for grooving, embossing and punching or cutting.
  • the working surfaces of the inner tool can thus be easily replaced when worn.
  • the inner tool further comprises at least one electric heating element.
  • the heating element By the heating element, the inner tool can be heated to promote the curing of soaked with water glass and thus moist cardboard tube.
  • the cardboard tube is thus quasi “baked” or pressed in the mold.
  • the processing machine has outer tools, which interchangeable punching tools for punching cutting lines in the lateral surface of the cardboard tube and interchangeable embossing tools for introducing Faltrillen in the lateral surface of the cardboard tube include. Due to the interaction of the outer and inner tools, the cardboard tube is still pressed together so far that air is pressed out between the paper layers of the cardboard tube and an optimal bonding of the paper webs is achieved.
  • the outer tool further comprises interchangeable embossing tools for the introduction of indentations.
  • system further comprises edge cutter for punching longitudinal cutting lines in the lateral surface of the cardboard tube.
  • the folding machine on vacuum suction to bend the stiffening walls of the lateral surface of the cardboard tube to the outside.
  • the vacuum cups are placed on the cut-out side wall portions of the cardboard tube and the vacuum applied to grip the stiffening walls and simply bend them outward.
  • the folding machine preferably has motor-driven screwing-in claws in order to fold the reinforcing walls into the load-bearing areas of the cardboard tube. After bending the stiffening walls by means of the vacuum cups, screw-in claws can be used to fold the stiffening walls into their desired shape.
  • the Einrehkrallen can be rotated by stepper motors and pneumatically driven up and down.
  • Figure 1 shows a pallet 1 consisting of a substantially flat, flat cover plate 50 and three pallet feet 10, which are preferably mounted under the cover plate 50.
  • three pallet feet 10 are used, wherein the pallet feet 10 are arranged parallel to each other.
  • Two pallet feet 10 are at the edge of the cover plate 50 and a pallet base 10 is fixed in the middle of the cover plate 50.
  • the attachment can be made by various attachment methods, however, an adhesion of the pallet feet 10 to the cover plate 50 is preferred.
  • the pallet feet 10 essentially consist of a one-piece cardboard tube 11 with a polygonal cross-section.
  • FIG. 1 shows cardboard tubes 11 with a square cross-section
  • FIGS. 8 to 15 show cardboard tubes with an octagonal cross-section.
  • hexagonal or rectangular sections are also conceivable, but the bearing surfaces of the pallet base 10 should be flat with respect to the cover plate 50 so that the pallet feet can be glued securely to the cover plate 50.
  • the pallet base 10 of Fig. 1 shows three closed load-bearing areas 30, which are preferably cuboid-shaped, and two open areas 20 between the load-bearing areas 30.
  • the open areas represent a transverse, i.e., horizontal, load-bearing area 30. transverse passage through the pallet feet, so that the pallet can also be received in the transverse direction of the fork of a forklift.
  • the pallet leg 10 has a continuous top wall 16 which secures the pallet leg 10 to the top panel 50, and a continuous bottom wall 14 which interconnects and spaces the load-bearing sections 30 to provide improved stability of the pallet leg 10.
  • Each pallet base 10 is made of a cardboard tube 11 of angular cross-section, which may be a specially wound cardboard tube or a cardboard tube obtained as a waste product in the paper or board production.
  • a cardboard tube 11 of angular cross-section which may be a specially wound cardboard tube or a cardboard tube obtained as a waste product in the paper or board production.
  • recycled or waste paper from secondary webs or transitions is preferably used, which can preferably be soaked or coated with waterglass prior to winding in order to provide increased stability to the later pallet base 10.
  • Water glass is available as potassium water glass (potassium silicate K 2 SiO 3 ) or as sodium silicate (sodium silicate Na 2 SiO 3 ) and is a syrup-like solution of sodium silicate or potassium silicate in water. Water glass cures in the air and serves as an inorganic binder, which gives the cardboard tube 11 and the pallet base 10 increased strength and moisture resistance. Water glass is used as a component for bonding, hardening and moisture protection of the pallet feet. Moisture protection can be increased even more if the pallet feet are immersed 20 - 30 mm from the bottom or completely in water glass. Due to the accuracy of the punching no water glass can penetrate into the interior of the load-bearing areas 30.
  • FIG. 2 shows how a cardboard tube 11 is provided with folding grooves 36 and cutting lines 38 in order to produce a pallet base 10 therefrom.
  • the upper view in Figure 2 shows a side wall of a square cardboard tube 11 with later load-bearing portions 30 and stiffening walls 32 which are folded from the side wall of the cardboard tube 11.
  • the upper view of Figure 2 shows the folding grooves 36 shown in dashed lines, which are introduced into the cardboard tube 11 in order to facilitate a folding of the stiffening walls 32 at these folding grooves 36.
  • FIG. 2 shows the cutting lines 38 which are needed to cut out the stiffening walls 32 from the side walls of the cardboard tube 11.
  • FIGS. 3A to 3E show horizontal cross sections through a respective load-bearing region 30.
  • regions of the reinforcing walls 32 which abut on one another in a planar manner are adhesively bonded to one another, whereby the stiffening effect is significantly increased.
  • a conventional paper adhesive, hot melt adhesive, or the like be used for gluing the stiffening walls 32 together and also for bonding with the deck 16, bottom 14 and side walls 17 of the pallet base.
  • a conventional paper adhesive, hot melt adhesive, or the like be used.
  • water glass is also used for this purpose.
  • the gap between the stiffening walls 32 shown in FIGS. 3A to 3E merely serves to clarify the corresponding folding pattern and is not or not so pronounced in reality.
  • FIG. 3A shows a first folding variant in which the stiffeners 32 are folded inwardly at three folding grooves 36 to form a cross-shaped stiffening structure within the closed area 30, the stiffening walls extending on the lines of symmetry of the closed area 30.
  • the closed region of FIG. 3A is subdivided into four essentially equal chambers 34.
  • Figure 3B also shows a cross-shaped arrangement of the stiffening walls 32, wherein, however, a stiffening wall is not duplicated.
  • Figure 3C shows a variant in which two elongated chambers are formed, with a chamber in the middle partially divided by stiffening walls.
  • FIG. 3D shows an embodiment in which the stiffening walls 32 form three closed chambers 34, which are arranged in the longitudinal direction of the pallet foot 10. This embodiment provides a very good stiffening effect through the large overlapping portions of the individual stiffening walls 32.
  • Figure 4 shows a horizontal cross-sectional view through a tube processing machine 110.
  • the tube processing machine 110 consists of two inner tools - 111 and two A mixtechnikmaschinee 114 which can be pressed by hydraulic cylinder 130 towards the inner tools 111 to press the cardboard tube 11 to press, embossing to grooves and to cut.
  • the inner tools 111 are introduced laterally into the tube 11 and spread open by means of two pressure cylinders 140. After spreading, the inner wall 18 of the cardboard tube 11 bears against the outside of the inner tool 111.
  • FIG. 5 shows a detail of an outer tool 114 and two impression cylinders 130.
  • a three-dimensional representation of the outer tool 114 can be seen in FIG. Figures 5 and 6 show that the actual tools 115, 116, 117 of the outer tool 114 are constructed of elongated profile-shaped elements which are screwed to a continuous support plate. Thus, the tools 115, 116, 117 of the outer tool 114 are interchangeable if necessary.
  • An outer tool 114 includes cutting tools 115, for cutting cutting lines 38 in the lateral surface of the cardboard tube 11, embossing tools 116 for introducing Faltrillen 36 in the lateral surface of the cardboard tube 111 and embossing tools 117 for introducing indentations 39 for reinforcing the lateral surface of the cardboard tube 11.
  • the embossing tools 117 are preferably rounded at their working surface, so that a slight curls of the side surface of the cardboard tube 11 is formed, but no sharp edges are introduced, which could promote kinking.
  • FIG. 7 shows a longitudinal section of the inner tool 111 and illustrates how radially it can be spread in the tool 111.
  • the inner tool 111 comprises a pressure cylinder 140, which moves a wedge-shaped element 141, which is pushed between two likewise wedge-shaped outer elements 142 can be.
  • the wedge-shaped outer elements 142 parallel to each other away.
  • the spreading of the inner tool 111 is limited by two stops 143, so that the cardboard tube 11 is clamped only firmly on the inner tool but not torn.
  • FIG. 8 shows a cross section through the inner tool 111 and through a cardboard tube 11.
  • FIG. 8 shows electrical heating elements 113, which make it possible to heat the inner tool.
  • the cardboard tube 11 is then "baked" quasi at a temperature of about 80 ° C to 120 ° C in the pipe processing machine. In this case ev. Is trapped between the paper layers trapped air.
  • FIG. 8 shows interchangeable machining surfaces 112 which correspond to the machining tools 115, 116, 117 of the external tool 114.
  • the processing surfaces 112 can also be replaced if necessary.
  • FIG. 9 shows a cross-section through a tube processing machine 110, in which case four outer tools 114 are used in order to be able to process all four sides of the cardboard tube 111.
  • the pipe processing machine is equipped with cutting tools 118, which introduce the longitudinal sections of the stiffening walls 32 into the cardboard tube 11.
  • FIG. 10 shows an exemplary cutting tool 118 in a three-dimensional view, wherein the cutting tool 118 can be moved by two pressure cylinders 130 in the direction of the inner tool 111. Furthermore, Figure 10 shows a further embodiment of the indentations 39 in the S-shape. A cutting line 38 created by the cutting tool 118 is also shown symbolically.
  • the continuous upper 16 and lower walls 14 also receive an embossing (not shown) which increases the stability of the two walls, in particular against deflection.
  • embossing the stiffening walls 32 are fixed inside and may not need to be glued together.
  • the bearing surface of the pallet base 10 is reduced to the cover plate 50, whereby a better bonding due to a higher contact pressure can be achieved. In this case, the adhesive insert can be reduced.
  • FIG. 11 shows the plan view at the top and a side view of a folding device 127 of a folding machine 120 for folding the stiffening walls 32.
  • a folding machine 120 has as many folding devices as there are stiffening walls 32. In the embodiment described herein, these are 12 unfolding devices 127.
  • the illustrated folding-in device 127 consists of two screw-in claws 122, 123, which are also shown in detail in FIG.
  • the screw-in claws 122, 123 can be placed on the edge of a stiffening wall 32 to fold the stiffening wall 32 along its folding grooves 36.
  • the driving-in claws 122, 123 are pneumatically movable up and down in order to grip the edge of the stiffening wall 32.
  • the folding-in device 127 further comprises two stepping motors 124 and 125 which turn the driving-in claws 122, 123 in a PLC-controlled manner.
  • the left stepper motor 124 rotates the entire fold-in device 127, and the right stepper motor 125 rotates a turntable 126 that has a drive-in claw 123 and associated pneumatic up and down travel.
  • FIG. 13 again shows by way of example a punched cardboard tube 11 provided with folding grooves 38. Steps 1 to 8 are shown in plan view.
  • step 1 the vacuum cups 121 are placed on the punched side walls 32 of the cardboard tube 11 and applied a vacuum to suck the side walls 32.
  • step 2 the vacuum cups 121 are pivoted outwardly and the stiffening walls 32 are turned outward, i. folded away from the cardboard tube 11.
  • step 3 the Einrehkrallen 122, 123 are placed on the edges of the stiffening walls 32 by the Einrehkrallen 122, 123 are pneumatically moved down. The Einrehkrallen are symbolized in Fig. 13 by black or circles.
  • the vacuum cups 121 are removed by releasing the vacuum.
  • step 4 the outer Einrehkrallen 122 are screwed, whereby the first folding takes place at a first Faltrille 26.
  • step 5 the removed external driving claws, ie moved up and screwed the middle Einrehkrallen to make a second folding, if desired.
  • step 6 all screw-in claws are removed by lifting them pneumatically.
  • step 7 the stiffening walls 32 are automatically folded into the load-bearing areas 30 by a pressure from the outside by means of the folding device, as symbolized by the illustrated arrows.
  • step 8 finally, the remaining end tabs 37 are folded down and up and glued to the stiffening walls 32.
  • FIG. 14 shows a plan view of a system 100 for producing pallet feet 10.
  • the system 100 comprises a tube winding machine 150, which winds the wrapping paper 13 into an endless cardboard tube 12 with an angular cross-section.
  • a wall thickness of about 3mm - 5mm obtained, which may be thinner due to the special manufacturing process, than in conventionally produced cardboard tubes, which have the same strength a wall thickness of 12mm - 15mm.
  • the winding paper of the endless cardboard tube is coated on one side with water glass before winding by means of a Beleimungsaggregats in the tube winding machine 150.
  • the endless carton tube 12 is discharged from the tube winding machine 150 and cut by a cutter 160 into cardboard tubes 11 of a desired length. A length of 1.40 meters is preferred for the cardboard tube 11.
  • first conveyor belt 170 After cutting the cardboard tube 11 falls on a first conveyor belt 170. From there it is conveyed to a second conveyor belt 180, as through the Arrows symbolizes.
  • the second conveyor belt conveys the cardboard tube 11 to the respective processing lines. In FIG. 14, only a first processing line is completely shown and a second line is indicated, but further processing lines could follow upwards.
  • the cardboard tube 11 is conveyed by means of an ejector 185 from the second conveyor belt 180 onto a tube depot 200. Should a tube overcapacity be present, the cardboard tubes 11 are collected at the end of the conveyor belt 180 in a magazine (not shown). If necessary, the cardboard tubes 11 can be returned to the second conveyor belt 180 via a further tube depot 190.
  • the cardboard tubes 11 are gripped by means of a first transport cross 210 through a vacuum suction and conveyed to the tube processing machine 110.
  • the transport cross 210 moves upwards and rotates through 180 °.
  • the vacuum is then removed and the cardboard tube 11 falls into the pipe processing machine 110.
  • the transport cross 210 moves back to its original position.
  • the machining process of the cardboard tube 11 now begins in the tube processing machine 110.
  • the six pressure cylinders 130 move to the right and to the left on "fixation”, wherein the cardboard tube 11 is only held light but not pressed.
  • the inner tools 111 are rapidly retracted by means of gear transporters 145 in the cardboard tube 11.
  • the upper pressure cylinder 135 (see FIG. 15) on a further gear transporter 146 drops rapidly downward.
  • the gear transporters 145 and 146 are locked to apply enough counterforce to the respective impression cylinders 140, 135.
  • the pressure cylinders 130, 135 and 140 are now hydraulically or pneumatically pressurized and go into "working position".
  • the pressure cylinders 130, 135, 140 and the gear transporters 145 and 146 are returned to their original position.
  • the finished cut and provided with folding grooves 36 and indentations 39 cardboard tube 11 is then conveyed by means of a second transport cross 220 of the tube processing machine 110 to the folding machine 120. There, the required folding operations, as described above in detail.
  • the pallet feet 10 are now finished and are required by means of a third conveyor belt, which connects all existing processing lines to a depot (not shown).
  • the pallet feet 10 can be glued to a pallet 1 with a suitable cover plate 50.
  • this last assembly step is not performed directly after the production of the pallet feet 10, but only at the end user.
  • the finished pallet feet 10 are separated from the cover plates 50 to be shipped to the end user.
  • the end user can then perform the final assembly (gluing, pinning, stapling, etc.).
  • the transport volume is reduced to a minimum and minimizes the transport costs for shipping the pallet.
  • the pallets can also be mounted directly at the manufacturer of the pallet feet 10, if the end user does not want to make any assembly.
  • FIG. 16 shows a further preferred embodiment of a pallet 1.
  • transverse struts 300 are used between the pallet feet 10, which further increase the stability of the pallet 1.
  • the transverse struts 300 are like the pallet feet 10 of a wound cardboard tube 11.
  • the required cardboard tube can be produced on the same tube winding machine 150, as the tubes 11 for the pallet feet 10. From a cardboard tube 11 of the required length can punching, creasing and Embossing each two transverse struts 300 are made.
  • FIG. 18 shows a side view of a cardboard tube 11 with embossed longitudinal folding grooves 304 and stamped cut lines 302.
  • the cutting lines 302 separate the cardboard tube 11 into an upper half 305 and a lower half 306, which respectively form a transverse strut 300.
  • the ends of the cardboard tube are cropped (not shown) to later form pin 310 can, as shown in Fig. 19.
  • the side surfaces of the cardboard tube halves 305, 306 are folded inwardly along the folding grooves 304 to double the sidewall thickness of the U-shaped cross member 300. Thereafter, at the ends of the transverse struts 300, trunnions 310 are formed by turning the double side walls outwardly at the end, as shown in FIG.
  • the pallet feet 10 in their load-bearing areas 30 are provided with side windows 22 which are also punched as shown in FIG.
  • the pins 310 are inserted into the side window 22 of the pallet feet 10 and glued as needed with water glass.
  • the open side of the U-shaped transverse strut 300 preferably points upward, in the direction of the cover plate 50, and abuts against this with its upper edge.
  • the production of the transverse struts 300 is analogous to the production of the pallet feet 10, by means of a corresponding system.
  • the transverse struts 300 are also pressed, punched, grooved and indented by means of a tube processing machine 110 in one operation, if desired. Thereafter, the folds of the side walls and the pin 310 are performed with a folding machine 120.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Pallets (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Making Paper Articles (AREA)
EP04009201A 2004-04-19 2004-04-19 Palette aus Karton Expired - Lifetime EP1588952B1 (de)

Priority Applications (11)

Application Number Priority Date Filing Date Title
PL04009201T PL1588952T3 (pl) 2004-04-19 2004-04-19 Paleta z kartonu
EP04009201A EP1588952B1 (de) 2004-04-19 2004-04-19 Palette aus Karton
SI200430015T SI1588952T1 (sl) 2004-04-19 2004-04-19 Kartonska paleta
ES04009201T ES2259423T3 (es) 2004-04-19 2004-04-19 Paleta de carton.
AT04009201T ATE318239T1 (de) 2004-04-19 2004-04-19 Palette aus karton
DE502004000300T DE502004000300D1 (de) 2004-04-19 2004-04-19 Palette aus Karton
CNB2005800118002A CN100572205C (zh) 2004-04-19 2005-03-05 硬纸板底板
RU2006140791/11A RU2376224C2 (ru) 2004-04-19 2005-03-05 Картонный поддон
PCT/EP2005/002350 WO2005100178A2 (de) 2004-04-19 2005-03-05 Palette aus karton
MXPA06012038A MXPA06012038A (es) 2004-04-19 2005-03-05 Tarima de carton.
US10/597,071 US20070151488A1 (en) 2004-04-19 2005-03-05 Cardboard pallet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04009201A EP1588952B1 (de) 2004-04-19 2004-04-19 Palette aus Karton

Publications (2)

Publication Number Publication Date
EP1588952A1 EP1588952A1 (de) 2005-10-26
EP1588952B1 true EP1588952B1 (de) 2006-02-22

Family

ID=34924647

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04009201A Expired - Lifetime EP1588952B1 (de) 2004-04-19 2004-04-19 Palette aus Karton

Country Status (11)

Country Link
US (1) US20070151488A1 (es)
EP (1) EP1588952B1 (es)
CN (1) CN100572205C (es)
AT (1) ATE318239T1 (es)
DE (1) DE502004000300D1 (es)
ES (1) ES2259423T3 (es)
MX (1) MXPA06012038A (es)
PL (1) PL1588952T3 (es)
RU (1) RU2376224C2 (es)
SI (1) SI1588952T1 (es)
WO (1) WO2005100178A2 (es)

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US7779765B2 (en) * 2006-03-03 2010-08-24 Daniel Kelly Pallet with telescoped leg assemblies
DE102008020431A1 (de) * 2008-04-08 2009-10-15 Daimler Ag Ladungsträger
TW201213197A (en) * 2010-09-29 2012-04-01 shang-wen Lv Paper board waterproof layering and paper pallet process utilizing paper board waterproof layering
US8783547B2 (en) 2012-02-09 2014-07-22 Southern Missouri Containers, Inc. Corrugated paper structure
LT5959B (lt) 2012-08-16 2013-08-26 Uab "Gtv" Kartoninis padėklas ir jo gamybos būdas
DE102022103081A1 (de) * 2022-02-09 2023-08-10 Jan Reijnvaan Paletten
DE102022103082A1 (de) * 2022-02-09 2023-08-10 Jan Reijnvaan Palettenblöcke und Paletten

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LT6526B (lt) 2016-07-08 2018-05-10 Zenonas SKIBINIAUSKAS Kartoninis padėklas

Also Published As

Publication number Publication date
SI1588952T1 (sl) 2006-06-30
CN1942368A (zh) 2007-04-04
CN100572205C (zh) 2009-12-23
ATE318239T1 (de) 2006-03-15
RU2006140791A (ru) 2008-05-27
DE502004000300D1 (de) 2006-04-27
WO2005100178A3 (de) 2006-03-02
ES2259423T3 (es) 2006-10-01
RU2376224C2 (ru) 2009-12-20
WO2005100178A2 (de) 2005-10-27
US20070151488A1 (en) 2007-07-05
PL1588952T3 (pl) 2006-05-31
MXPA06012038A (es) 2007-08-14
EP1588952A1 (de) 2005-10-26

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