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
  • B65D19/38—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
  • 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
  • B65D19/0077—Rigid pallets without side walls the load supporting surface being made of more than one element forming discontinuous or non-planar contact surfaces
  • B65D19/0089—Rigid pallets without side walls the load supporting surface being made of more than one element forming discontinuous or non-planar contact surfaces the base surface being made of more than one element
  • B65D19/0093—Rigid pallets without side walls the load supporting surface being made of more than one element forming discontinuous or non-planar contact surfaces the base surface being made of more than one element forming discontinuous or non-planar contact surfaces
  • B65D19/0095—Rigid pallets without side walls the load supporting surface being made of more than one element forming discontinuous or non-planar contact surfaces 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
  • B65D2519/00029—Wood
• • 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
  • B65D2519/00064—Wood
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
  • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
  • B65D2519/00004—Details relating to pallets
  • B65D2519/00009—Materials
  • B65D2519/00084—Materials for the non-integral separating spacer
  • B65D2519/00104—Plastic
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
  • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
  • B65D2519/00004—Details relating to pallets
  • B65D2519/00009—Materials
  • B65D2519/00084—Materials for the non-integral separating spacer
  • B65D2519/00109—Agglomerates, i.e. different materials mixed together
• • 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
  • B65D2519/00313—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
  • B65D2519/00373—Overall construction of the non-integral separating spacer whereby at least one spacer is made of one piece
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
  • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
  • B65D2519/00004—Details relating to pallets
  • B65D2519/00547—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
  • B65D2519/00572—Structures connecting the constitutive elements of the pallet to each other, i.e. load supporting surface, base surface and/or separate spacer with separate auxiliary element, e.g. screws, nails, bayonets

Definitions

• the present invention relates to a block for pallets, consisting of an integral body, having predetermined height and opposing end suppor surfaces for abutment against flat structural elements of the pallet, to which the body is attached by nails or screws.
• Pallets are subjected to considerable strain, particularly while pall goods are being loaded and unloaded by a fork-truck.
• the pallets are thereby easily damaged and must therefore be repaired or rejected.
• the damages can be ' extensive usually because the nail joints at the pallet blocks are too weak so that they become partially or totally loosened. This results in an unstable pallet and the nails have a tendency to work themselves out since their grip in the blocks is too loose, and the nail-heads protruding easily damage the goods being transported or stored, and even goods on other pallets coming into contact with the exposed nail-heads.
• the main object of the present invention is to eliminate the above problem and to effect loading blocks enabling the manufacture of pal ⁇ lets having firm nail or screw joints which can be subjected to con ⁇ siderable strain without the nails or screws loosing their grip in the blocks.
• the body comprises one or more anchoring members having one or two exposed surfaces, said anchoring member being arranged to retain nails or screws with a firm grip, which are nailed or screwed, respectively, through one or more structural elements into the anchoring member, that one or both exposed surfaces of the anchoring member are pro ⁇ vided with a plurality of recesses arranged to guide a nail or screw into the anchoring member, and that the body consists of a hard, shape- -retaining material capable of withstanding considerable loads, which material provides said firm grip and substantially comprises a thermo- plastic material .
• the pallet block according to the present invention can be simply and quickly produced at low cost.
• the novel blocks provide nail or screw joints superior to the joints obtained with previously used pallet blocks.
• the exposed surfaces of the anchoring member or members are spaced from the opposite end support surfaces. Such spaces enable the nails to be free therein to bend while being guided into the anchoring member by the recesses.
• Fig 1 shows in perspective a sectioned pallet block according to a preferred embodiment of the invention
• Fig 2 shows a perspective view of a pallet provided with blocks according to Figure 1.
• the pallet block shown in Figure 1 consists of a cylindrical body 1 made in one piece and being in form of an H seen in longitudinal section.
• the body comprises a cylindrical load-supporting wall 2 of predetermined thickness forming the opposing, parallel end support surfaces 3, 4 of the body.
• the body also comprises an- inner, trans- verse anchoring member 5, arranged at the middle of the body seen in longitudinal direction, and made in one piece with the wall 2, thus forming a fixed partition.
• the anchoring member 5 is provided with free or exposed surfaces 6, 7 facing the end support surfaces 3, 4, the exposed surfaces being substantially flat and located at a predetermined and substantially the same distance from each end support surface 3, 4.
• the partition is thus of predetermined thick ⁇ ness.
• the block will therefore be symmetrical both transversely and longitudinally through the centre.
• the anchoring member 5 is provided on both opposing surfaces 6, 7 with a plurality of recesses 8, 9, distributed uniformly over the whole surfaces and located close together to prevent the occurrence of any large, flat areas betv/een the recesses which might unfavourabl guide and deflect a nail laterally without it penetrating into the anchoring member, thereby impeding reliable anchoring of the nail in the anchoring member 5.
• the recesses are parallel to the longitudinal axis of the block.
• the recesses 8, 9 are in the form of funnel-shaped holes with a first conical part 10 continuing into a second, substantially cylindrical portion 11. The holes in one surface may be joined to those in the opposite surface or they may extend past each other to the opposite surface.
• the holes in one surface terminate before reaching those from . the other surface.
• the cylindrical portion 11 of the hole has a pre ⁇ determined diameter which is essentially less than the thickness of the nail, e.g. approximately half the thickness of the nail so that the nail is tightly clamped with a sufficiently steady grip and con ⁇ siderable force in the anchoring member when entering the anchoring member through one of its funnel-shaped holes in line or substantially in line with the nail and its direction of entry.
• the nail will there- by be effectively retained even when the pallet is subjected to con ⁇ siderable strain, as is the case during loading and unloading with a fork-truck.
• FIG. 2 shows a pallet provided with nine blocks according to the invention.
• the pallet is constructed of top boards 13, 14 and supporting bottom boards 15, the top and bottom boards being permanently nailed to the plastic blocks which thus serve as spacer means forming pockets 16 for the insertion of the tongs of a fork-lift. At least two, preferably three nails 17 are used for each joint.
• the grip-increasing ridges 12 penetrate into the boards and prevent the block from twisting or moving. This effect is an advantage both in assembling the pallet and during use when they are subjected to lateral strain from the forks of the fork lift, for instance.
• the blocks can also be used as feet for the pallet, i.e. without bot ⁇ tom boards, in which case the lower end of the blocks is preferably closed.
• the blocks may have a standard height of 75 mm (adapted to the forks) and a dia ⁇ meter of about 100 mm, the anchoring member having a thickness of abou 20 mm and the body wall a thickness of about 4 mm.
• the recesses may be about 8 mm deep, the conical part being about 1 mm.
• the conical part has a maximum diameter of about 5 mm and the recesses are uniformly distributed over both surfaces with a centre distance of. about 6 mm,, thus leaving extremely small areas between the holes.
• Figure 1 illu ⁇ strates schematically the location of the recesses and in practise the surface areas between the recesses may be smaller than shown in the drawing so that the orifice edges of the holes contact each other. Even if the point of a nail first encounters one of these narrow li ⁇ mited surface areas, the nail will immediately be guided to an adjacen hole due to the conical orifice of the hole.
• the cylindrical part of the hole has a diameter of about 2 mm which is adapted to a nail with a thickness of 4 mm.
• a block of the embodiment described can be injec ⁇ tion-moulded in one piece of ABS plastic (acrylonitrile butadiene sty- rene), for instance, HD plastic (with the addition of expanding agent) and nylon, and other thermoplastic materials and mixtures thereof with equivalent tensile properties which produce a shape-retaining body capable of taking up considerable loads and giving the desired firm grip around a nail.
• the thermoplastic material may advantageously con ⁇ sist of a mixture of a large portion of reject material of thermoplas ⁇ tics and a small portion of fresh thermoplastic, or of only reject material .-Fillers such as sawdust, wood meal and chalk can possibly be added in suitable quantities (generally smaller quantities).
• the recesses can have a depth of from 2 mm and upwards corresponding to the thickness of the anchoring member, each recess comprising an en larged orifice portion with walls inclined towards the centre of the recess and with a cross-section larger than the thickness of the nail to be used.
• the orifice portion preferably proceeds into a smaller hole portion which may be circular, triangular or rectangular in cros -section, the cross-section being constant or tapering away from the orifice portion.
• the width of the largest cross-section is then con ⁇ siderably smaller than the thickness of the nail to be used, i.e. 30- -70%, preferably 40-60% and most preferably about 50% of the thicknes of the nail.
• Such a tapering hole portion i.e.
• the nail is preferably of such a length that it extends through the entire anchoring member in order to utilize the material to a maximum extent.
• Recesses extending into the anchoring member a distance, as shown in Figure 1 for instance, are advantageous from the injection moulding point of view since the recess-forming pins of the moulding tool enabl rapid cooling of the moulded body, thus considerably increasing produc tion capacity.
• a central through-hole for in ⁇ stance, having a width or diameter of 5-30 mm, may be provided.
• Such a ring-shaped anchoring member is sufficiently large to allow a firm nail joint, but the nailings must be made with some alignment of the nail to the position of the anchoring member.
• the block may alternatively be given other cross-sections, rectangular, for instance.
• Another alternative includes an anchoring member arrange at a distance from each end support surface, in which case a material- -saving space is formed between the two anchoring members.
• the external, ex ⁇ posed surfaces of the anchoring members are spaced at least 5 mm, for instance, suitably at least 10 mm, from the end support surfaces of the block.
• Such a space enables the nail to be free therein to bend while being guided into the anchoring member by a recess. In the prac ⁇ tical embodiment described above this space has an height of about 27,5 mm.
• the recesses or their orifice por ⁇ tion may be pyramid-shaped to provide the pairwise opposing surfaces to guide the nail in the same way as described in the correct direc ⁇ tion into the anchoring member.
• Such an embodiment enables all flat areas between the recesses to be eliminated.

Landscapes

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

Applications Claiming Priority (2)

Publications (1)

Family

ID=20346352

Family Applications (1)

Country Status (4)

Cited By (1)

Families Citing this family (1)

Citations (2)

• 1982
  • 1982-03-25 SE SE8201894A patent/SE432238B/sv not_active IP Right Cessation
• 1983
  • 1983-03-09 DE DE19833308425 patent/DE3308425A1/de not_active Withdrawn
  • 1983-03-25 EP EP83901111A patent/EP0116548A1/de not_active Withdrawn
  • 1983-03-25 WO PCT/SE1983/000104 patent/WO1983003398A1/en unknown

Patent Citations (2)

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