EP0404019B1 - Zusammengesetzte Kunststoffpalette - Google Patents

Zusammengesetzte Kunststoffpalette Download PDF

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Publication number
EP0404019B1
EP0404019B1 EP90111472A EP90111472A EP0404019B1 EP 0404019 B1 EP0404019 B1 EP 0404019B1 EP 90111472 A EP90111472 A EP 90111472A EP 90111472 A EP90111472 A EP 90111472A EP 0404019 B1 EP0404019 B1 EP 0404019B1
Authority
EP
European Patent Office
Prior art keywords
plastics
vertical
connecting surface
pallet according
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
EP90111472A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0404019A1 (de
Inventor
Hans Umiker
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.)
Schoeller Arca Systems AG
Original Assignee
Schoeller Plast SA
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 Schoeller Plast SA filed Critical Schoeller Plast SA
Publication of EP0404019A1 publication Critical patent/EP0404019A1/de
Application granted granted Critical
Publication of EP0404019B1 publication Critical patent/EP0404019B1/de
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
    • B65D19/0053—Rigid pallets without side walls the load supporting surface being made of more than one element
    • B65D19/0055—Rigid pallets without side walls the load supporting surface being made of more than one element forming a continuous plane contact surface
    • B65D19/0067—Rigid pallets without side walls the load supporting surface being made of more than one element forming a continuous plane contact surface the base surface being made of more than one element
    • B65D19/0071—Rigid pallets without side walls the load supporting surface being made of more than one element forming a continuous plane contact surface the base surface being made of more than one element forming discontinuous or non-planar contact surfaces
    • B65D19/0073—Rigid pallets without side walls the load supporting surface being made of more than one 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
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00009—Materials
    • B65D2519/00014—Materials for the load supporting surface
    • B65D2519/00034—Plastic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00009—Materials
    • B65D2519/00049—Materials for the base surface
    • B65D2519/00069—Plastic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00009—Materials
    • B65D2519/00084—Materials for the non-integral separating spacer
    • B65D2519/00094—Metal
    • 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
    • B65D2519/00293—Overall construction of the load supporting 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
    • B65D2519/00283—Overall construction of the load supporting surface
    • B65D2519/00308—Overall construction of the load supporting surface grid type, e.g. perforated plate
    • 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
    • B65D2519/00398—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
    • 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 plastic pallet with the features of the preamble of claim 1.
  • plastic pallets are known from GB-A-2 022 551.
  • plastic pallets from individual plastic parts which are arranged side by side generally has the purpose of keeping the molds used to manufacture the plastic pallet relatively small. The risk is accepted that the plastic pallet in the connecting surfaces of its plastic parts is less stable or tends to break open during use.
  • connection Possible types of connection are, for example, gluing (see also DE-A-24 03 374), concealment, heat sealing or mechanical fastening types (again DE-A-14 56 737, p. 12, lower paragraph).
  • bonded or welded joints are generally not as strong or at least not as durable as integral profiles of the same cross-section.
  • a plastic pallet according to DE-A-27 03 506 is composed of essentially triangular plastic parts, in particular by mirror welding, which complement one another to form a square plastic pallet.
  • Each plastic part is formed as a vertical web truss, so that the composite plastic pallet is formed as a vertical web truss. Its webs run parallel to the side walls of the assembled plastic pallet and thus obliquely to the respective vertical plane of the connecting surface of adjacent plastic parts.
  • no vertical webs of adjacent plastic parts are in alignment, since these are arranged so as to be displaceable relative to one another on the respective connecting surface as a result of the rounding of their tip located inside the plastic pallet.
  • each plastic part in the area of a connecting surface is statically completely independent of the vertical web truss in the form of an open profile with a stiffening by vertical webs different from the vertical webs such that two mutually facing open profiles complement each other to form a hollow profile in the assembled state; it can happen (Fig. 2 at reference number 9 of DE-A-27 03 506) that the ends of the webs facing each other with a suitable relative position of adjacent plastic parts in the respective open hollow profile are butt-welded or connected on the other side.
  • the vertical webs in the respective open profile are arranged with a greater frequency than the vertical webs of the vertical web truss adjoining the respective open profile and also do not continue any vertical webs of the vertical web truss in the respective open profile.
  • This relatively expensive construction is in the range of the respective The vertical webs of the vertical truss, which act as tie rods, are interrupted by the connecting surface, and the staggered webs in the hollow profile run obliquely to the following vertical webs of the vertical truss and are therefore subjected to buckling when stressed along the respective following vertical web of the vertical web truss.
  • the connecting surface is also arranged obliquely to the direction of loading and is thus subjected to shear stress.
  • connection points themselves reduce the durability of plastic pallets and are still subject to a gradual degradation of their durability under the influence of UV, necessitate the formation of a hollow profile with a narrow web compartment on each connection surface in this known plastic pallet.
  • a hollow profile also weakens the appearance of the vertical web truss of the plastic pallet.
  • plastic pallet according to GB-A-2 022 551 to which the preamble of claim 1 relates, it is additionally provided, in comparison with the plastic pallet according to DE-A1-27 03 506, that vertical webs of the vertical web framework are perpendicular to the vertical plane of the each connecting surface of plastic parts, and that the vertical webs connected to the respective connecting surface are vertical webs of the vertical web framework, which continue directly via the connecting surface from the vertical web framework of one plastic part into the vertical web framework of the adjacent plastic part.
  • the plastic parts assembled to form a double-deck plastic pallet are integrally formed in the vertical direction (cf. claim 8)
  • the vertical web truss in the area of the connecting surfaces is supplemented by horizontal plates on the top and bottom of each deck to form closed hollow profiles, which continue over the respective connection surface and stiffen the connection zones.
  • This known plastic pallet - typically a rectangular, for example square pallet - is thus already divided parallel to a side wall.
  • Vertical webs of the vertical web truss that are aligned with one another run at right angles to the vertical plane of the connecting surface and continue there from one plastic part into the adjacent one, albeit with the formation of closed hollow profiles serving for connection and stiffening.
  • the vertical webs connected to one another as closed hollow profiles pass through the entire vertical web truss of the plastic pallet parallel to its lateral boundary and act as a straight tie rod or tension reinforcement with straight, continuous lines of force running through the opposite side walls of the plastic pallet, which, moreover, also only perpendicular to their respective connecting surface when stressed in their longitudinal direction - and thus not on shear - are stressed.
  • the formation of the hollow profiles of the vertical web truss in the area of the respective connecting surface requires a complex side sword technique.
  • the invention is based on the object, in a plastic pallet designed as a vertical web framework, which is composed in such a way that a permanent connection is created on the connecting surface of the individual plastic parts without weakening the entire plastic pallet, to achieve these properties in a simplified design.
  • the plastic pallet according to the invention typically again a rectangular, for example also square, pallet - provides for the aforementioned compensation for the weakening of the strength of a plastic pallet by division, which occurs without special measures, be it per se on a connecting surface or be it by gradual degradation of the connection quality under the influence of UV radiation, only a small additional consumption of plastic. This is limited to a thickening of the interconnected ends of vertical webs of the vertical web truss and is minimal in comparison with the formation of closed plastic profiles.
  • the interconnected vertical webs which continue to run through the entire vertical web truss of the plastic pallet parallel to their lateral boundaries and act as straight tie rods or tension reinforcements with straight, continuous lines of force running between opposite side walls of the plastic pallet, will continue to be stressed in their longitudinal direction on their respective connecting surface even at right angles to it - and therefore not subject to shear.
  • the appearance of the vertical framework of the entire plastic range remains largely unaffected despite the fact that it is composed of various plastic parts.
  • the same molded parts can be used for different pallet sizes by reasonably dividing the individual plastic parts.
  • the same outer plastic parts can be used, with mirror-symmetrical design on the pallet even for the two outer parts opposite on different sides of the plastic pallet Plastic parts, so that only a single shape is required for them. A special additional shape only has to be built for the middle section. Similarly, the construction work for a pallet with the external dimensions 1200 x 1200 mm can be reduced.
  • an injection molding machine with a clamping force of 1200 tons, even for hard-flowing material, is sufficient to produce a single plastic part of the pallet. If the width were produced in one part, an injection molding machine with at least 3000 tons of clamping force would have to be provided. The investment difference would be in the ratio of 1.2: 3.5 million Swiss francs.
  • Claim 3 provides for a further simplification in that a single vertical connection surface between horizontally adjacent plastic parts is also provided over the entire plastic pallet, a preferred development being mentioned in claim 15 in the sense described above.
  • connection methods come, in particular the connection methods mentioned, e.g. Glue in question.
  • connection methods mentioned e.g. Glue in question.
  • a weld in particular a connection in the manner of a mirror weld, is preferred (cf. claim 6).
  • connection such as welds
  • welds are also extremely sensitive to UV radiation.
  • the lattice structure is expediently covered in the area of the weld seams (cf. claim 7). This means that only the horizontal weld seams at the top are exposed to direct radiation.
  • appropriate covers can also be provided on the underside of the pallet in order to prevent the weld seams from being impaired there either by chemical influences from the storage area or by sun exposure when standing upright, or finally when the pallet is designed invariably optional loading on the upper or lower horizontal outer surface.
  • the plastic pallet according to the invention preferably provides, according to claim 8, that its plastic parts, from which it is assembled in a horizontal juxtaposition, in the vertical direction are integrally formed.
  • Vertical web trusses can be formed in different ways. For example, vertically or diagonally crossing grids or honeycomb grids are known. However, all such vertical web trusses have a relatively weak friction surface with respect to loads on the one hand and to engaging forklift arms on the other. In the plastic pallet, it is therefore expedient in the required horizontally closed or open areas to receive holes from pins made of rubber-elastic material, e.g. made of rubber or a rubber substitute, provided to prevent the loads from slipping or sliding off the forklift arms (cf. DE-A-25 07 275). In this way, the concept of the invention of using vertical web truss as far as possible can be maintained without being impaired by sliding in the areas mentioned.
  • Claims 11 to 14 show various preferred designs of the plastic pallet according to the invention, which according to claim 16 are preferably composed of injection moldings.
  • Horizontal composite plastic double-deck pallets according to claim 11 or skid pallets according to claim 12 are known per se (e.g. GB-A-20 22 551, Fig. 13 and DE-A-25 07 275).
  • the invention is illustrated on a plastic pallet designed as a skid pallet.
  • the transfer to a double-deck pallet known per se is carried out analogously in the manner familiar to the average person skilled in the art.
  • the deck of the skid pallet is designed as a vertical web truss 2.
  • the grid dimension of the vertical web truss 2 is somewhat different from the representation according to FIG. 1.
  • a corresponding transfer to the same grid dimensions or divisions is also readily possible for the person skilled in the art.
  • the plastic pallet has three skids 4 carrying the deck 6, which run parallel to one another in the longitudinal direction of the elongated rectangular plastic pallet and one of which is arranged on the longitudinal edge and one in the middle. Aligned below the deck 6, the openings 4 extend at right angles to these two engagement openings 8 arranged symmetrically to the transverse plane of the plastic pallet for forklift arms.
  • the vertical web truss 2 extends from the deck 6 to the runners. Accordingly, in the case of a double-deck pallet, the vertical web truss can be arranged continuously in both decks and in their connecting parts.
  • the webs 10 of the vertical web truss 2 cross at right angles and are arranged relative to one another such that an outer web 12 or 14 forms a closed longitudinal wall (outer web 12) or end face (outer web 14) of the boundary wall of the plastic pallet.
  • the outer web 12 can be used for labeling points 16 on the manufacturer side, for dating marks 18 and for labeling 20 on the customer side.
  • the plastic pallet described is formed as a vertical web framework 2.
  • the pallet can be picked up by means of forklift arms from all four sides, either through the two openings 22 between adjacent pairs of runners 4 or through the engagement openings 8 which are respectively formed on the long side.
  • Similar drain openings 24 can also be provided on other horizontally closed areas of the plastic pallet. Specifically, they are shown in the upper boundary surface of the deck 6 in Fig. 1 at those locations where the vertical web truss is closed at the top.
  • the engagement openings 8, which also run through the central runner, are each provided with such a lower bevel 26 according to FIG. 4 and in the case of the outer runners 4 also with an upper bevel 28 in order to facilitate the insertion of the forklift arms.
  • the runner merges with its upper boundary wall, in which the drain openings 18 are formed, in alignment with the underside of the deck 6.
  • FIG. 2 A preferred branching form of the vertical webs generally designated 32 is shown in FIG. 2. It can be seen that the node 36 of the vertical webs of the vertical web framework 2, generally designated 32, describes a circle 38, which can be an imaginary line, but also material, concave or can be designed convex in the desired shape, for example as a material point-shaped support grid with a horizontal or curved surface.
  • circle 38 can be an imaginary line, but also material, concave or can be designed convex in the desired shape, for example as a material point-shaped support grid with a horizontal or curved surface.
  • stepped through holes 40 are formed on the top of the deck 6 at points X and widening upward, in the manner of stepped bores, into which not shown rubber pins made of natural rubber or a substitute, for example soft PVC, can be inserted to prevent the load from slipping on the plastic pallet.
  • a corresponding design X which is illustrated in more detail in FIGS. 1a and 1b, is also provided with the opposite axis orientation on the underside of the deck 6 at locations which are on the one hand between the runners, here central, and on the other hand with the engagement openings 8 aligned. In the described plastic pallet, four such locations X on the underside of the deck are sufficient to counteract any slipping of the forklift arms when any forklift arms are engaged.
  • the drainage openings 18 for moisture have a circular cross section, but the through holes 40 have a rectangular cross section, without this being mandatory.
  • the through holes 40 can also have a circular cross section.
  • the lower section 42 which is stepped on all sides, can serve to receive a shaft of pins which are complementary to the through holes 40, or can also be used for the drainage of moisture in the event that such pins are not fitted.
  • the plastic pallet is composed of two plastic parts 44 and 46, the connecting surfaces 48 of which are vertical planes that run along the longitudinal edge of the plastic pallet or along its runners or along the parallel webs 32 via the extend the entire height of the plastic pallet.
  • a cover strip 52 extends on both sides to cover lateral light irradiation onto the connecting surface 48, on which the plastic parts 44 and 46, which are expediently made of injection moldings, are also expediently connected to one another by mirror welding are so that the connecting surfaces 48 then embody mirror welds.
  • cover strips 52 are expediently also formed in the production of the plastic parts 44 and 46; it would also be conceivable, but more complex, to apply them retrospectively or to insert them into corresponding cutouts and to connect them in a suitable manner, for example by gluing.
  • a longitudinal extension of the end 54 of 3 mm is sufficient to ensure that the strength of the vertical webs continuing over the connecting surface in the region of the connecting surface 48 is at least as great as that not through a connecting surface 48 separated, that is, integral areas of the vertical webs 32 with normal vertical web thickness, in the exemplary embodiment having a thickness of 3 mm.
  • plastic parts 44 and 46 are - as mentioned even expediently including the cover strips 52 - integrally manufactured over their entire height, as mentioned expediently as injection moldings.
  • FIG. 6 shows the described features of the skid pallet according to FIGS. 4 and 5 again in a different direction of view, namely in plan view with a dashed representation of the areas covered. It can be seen particularly clearly (cf. also FIG. 1) that the vertical webs 10 of the vertical web framework are perpendicular to one another and to the outer vertical webs 12 and 14 which form the side walls of the plastic pallet. The uniformly rectangular grid of the vertical webs 10 continues without interference on the connecting surface from the plastic part 44 to the plastic part 46, etc., as evidenced by the equidistance of the nodes (see FIG. 2) in the vicinity of the connecting surfaces 48 as well as within the plastic parts 44 , 46, etc. results.
  • the connecting surfaces 46 directly bridging vertical webs 32 continue in parallel directly from the side web 12 to the (not shown) side web 12 on the other end face of the skid pallet and form continuous tie rods running parallel to the side webs 14 on the long side of the pallet.
  • the vertical webs 32 initially protrude between the nodes on both sides of the connecting surface 48 with a constant thickness in the direction of the connecting surface and are only provided with the connected thickened ends 54 in the vicinity thereof (cf. FIG. 3).
  • the cover strips 52 each extend approximately from the connecting surface 48 to the next adjacent nodes.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pallets (AREA)
EP90111472A 1989-06-22 1990-06-18 Zusammengesetzte Kunststoffpalette Expired - Lifetime EP0404019B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3920497A DE3920497C1 (ja) 1989-06-22 1989-06-22
DE3920497 1989-06-22

Publications (2)

Publication Number Publication Date
EP0404019A1 EP0404019A1 (de) 1990-12-27
EP0404019B1 true EP0404019B1 (de) 1993-12-01

Family

ID=6383361

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90111472A Expired - Lifetime EP0404019B1 (de) 1989-06-22 1990-06-18 Zusammengesetzte Kunststoffpalette

Country Status (3)

Country Link
EP (1) EP0404019B1 (ja)
JP (1) JPH03124556A (ja)
DE (2) DE3920497C1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8230793B2 (en) 2007-06-15 2012-07-31 Rehrig Pacific Company Nestable pallet

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Publication number Priority date Publication date Assignee Title
DE4128883A1 (de) * 1990-10-31 1993-03-04 Delbrouck Franz Gmbh Flachpalette
JP2548976Y2 (ja) * 1992-01-23 1997-09-24 昭和電工株式会社 合成樹脂製パレット
JP2008265824A (ja) * 2007-04-20 2008-11-06 Orion Mach Co Ltd 重量装置の底板
JP5219531B2 (ja) * 2008-01-29 2013-06-26 日本プラパレット株式会社 合成樹脂製パレット

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Publication number Priority date Publication date Assignee Title
US3307504A (en) * 1965-12-01 1967-03-07 Nosco Plastics Pallet
SE321640B (ja) * 1968-09-12 1970-03-09 K Roestlinger
DE2213333A1 (de) * 1972-03-20 1973-10-11 Robert Flip Petix Stapelplatten
DE2403374C3 (de) * 1974-01-24 1979-06-13 Alexander Schoeller & Co Ag, Volketswil, Schwerzenbach (Schweiz) Kunststoffpalette
DE2507275C2 (de) * 1975-02-20 1982-05-13 Schoeller GmbH & Co KG, 3400 Göttingen Palette aus Kunststoff
DE2533265B2 (de) * 1975-07-25 1978-12-07 Franz Delbrouck Gmbh, 5750 Menden Doppeldeck-Flachpalette
DE2703506C2 (de) * 1977-01-28 1983-05-26 Franz Delbrouck Gmbh, 5750 Menden Palette
US4287836A (en) * 1978-06-03 1981-09-08 Kabushiki Kaisha Meiji Gomu Kasei Pallet made of synthetic resin

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8230793B2 (en) 2007-06-15 2012-07-31 Rehrig Pacific Company Nestable pallet

Also Published As

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DE3920497C1 (ja) 1991-01-24
DE59003658D1 (de) 1994-01-13
EP0404019A1 (de) 1990-12-27
JPH03124556A (ja) 1991-05-28

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