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
  • B65D71/00—Bundles of articles held together by packaging elements for convenience of storage or transport, e.g. portable segregating carrier for plural receptacles such as beer cans or pop bottles; Bales of material
  • B65D71/0088—Palletisable loads, i.e. loads intended to be transported by means of a fork-lift truck
  • B65D71/0092—Palletisable loads, i.e. loads intended to be transported by means of a fork-lift truck provided with one or more rigid supports, at least one dimension of the supports corresponding to a dimension of the load, e.g. skids
  • B65D71/0096—Palletisable loads, i.e. loads intended to be transported by means of a fork-lift truck provided with one or more rigid supports, at least one dimension of the supports corresponding to a dimension of the load, e.g. skids the dimensions of the supports corresponding to the periphery of the load, e.g. pallets
• • 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
  • B65D2571/00—Bundles of articles held together by packaging elements for convenience of storage or transport, e.g. portable segregating carrier for plural receptacles such as beer cans, pop bottles; Bales of material
  • B65D2571/00006—Palletisable loads, i.e. loads intended to be transported by means of a fork-lift truck
  • B65D2571/00043—Intermediate plates or the like
• • 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
  • B65D2571/00—Bundles of articles held together by packaging elements for convenience of storage or transport, e.g. portable segregating carrier for plural receptacles such as beer cans, pop bottles; Bales of material
  • B65D2571/00006—Palletisable loads, i.e. loads intended to be transported by means of a fork-lift truck
  • B65D2571/00067—Local maintaining elements, e.g. partial packaging, shrink packaging, shrink small bands
  • B65D2571/00074—Stabilising or reinforcing columns

Definitions

• the invention relates to a palletizing process with reinforcement of compressive strength and the device for implementing this process.
• An object of the invention is to provide a palletizing process with reinforcement of compressive strength which makes it possible to reduce the quantity of raw material necessary for the manufacture of packaging while keeping an identical full palletizing load.
• the packaging at the bottom of the loaded pallet must also not collapse. According to the invention, this object is achieved by a palletizing process with reinforcement of compressive strength which comprises the following steps:
• a pallet is provided, of width LI and depth PI, intended to receive a load of total height Hl,
• - H2 height packages are provided, each package having at least one hole passing through the package right through the height of the package, the hole being at least from a lower perforation, - pillars are provided. compression reinforcement whose height H3 is a multiple of the height H2 of the packages, the pillars can be inserted at least in some of the holes,
• a first series of packages is stacked on the pallet, the packages constituting a lower package assembly, so that the holes are aligned and so that the height of the lower package assembly is equal to the height H3 pillars, - at least three of the pillars are inserted into holes in the lower package assembly which can serve as a guide for the pillars, so that the pillars are vertical,
• the intermediate plate is placed on the lower packaging assembly so that the plate rests on the upper end of the pillars
• a second series of packages is stacked on the intermediate plate, the packages constituting an upper set of packages. It is advantageously provided that the packages are rectangular parallelepipeds and that four pillars are inserted into holes located in the corner areas of the lower package assembly.
• all the packages have a plurality of holes: some of these holes can serve as a guide for the pillars while the other holes serve to ventilate the stacked packages and the intermediate plate is perforated so that hollowed out parts from the plateau are at least partially opposite the holes used for ventilating the packages.
• Another object of the invention is to provide a palletizing device which has the advantages mentioned above.
• a palletizing device for stacking packages of height H2 comprising holes passing through the packages from side to side in a vertical direction, each of the holes coming from at least one lower perforation, where it is planned: - a pallet intended to receive a load of total height Hl constituted by all of the stacked packages, pillars of compression resistance reinforcement whose height H3 is a multiple of the height H2 of the packages and intended to be placed vertically in holes which can serve as a guide so that their upper end is at the upper edge of the vertical walls of the packages which contain the upper end part of the pillars, and
• the height H3 of the pillars is equal to three times the height H2 of the packages when the packages have been stacked.
• FIG. 1 is a schematic perspective of a pallet loaded with the prior art
• Figure 2A is a schematic perspective of a package stacked in the lower set of packages during an intermediate step of the palletizing process according to the invention
• Figure 2B is a top view of the package shown in Figure 2A;
• FIG. 3 is a schematic perspective of an intermediate step in the palletizing process according to the invention.
• FIG. 5 represents the phenomenon of deflection of a lateral face of a package.
• the palletizing process known by the prior art consisted in stacking packaging 20 in an orderly fashion on a transport pallet 10.
• This pallet 10 is constituted by a base comprising a tray and feet between which is provided the passage of the fork of forklifts or similar devices.
• parallelepipedic packages 20 of width L2, depth P2 and height H2 are stacked in a regular manner to form a complete parallelepiped pallet load of width LI, depth PI and height H1.
• the width LI and the depth PI of the total load are respectively multiples of the width L2 and the depth P2 of the packages 20.
• the width LI and the depth PI of this load are respectively equal to the width and the depth of the pallet 10.
• the stack of packages 20 forms successive superimposed layers, each of the packages of a layer supporting the weight of the packages located above it. For example if we refer again to Figure 1, each package of the lower layer 12 supports all the packages of the upper layers 14 which are located directly above this package.
• the packages 20 are identical and necessarily perforated right through.
• An example of a perforation is shown in FIG. 2A: at least one lower perforation is located in the lower horizontal wall or bottom of the packages 20. It is possible to use packages with a bottom and an upper horizontal wall, in this case each lower perforation located opposite an identical upper perforation located in the upper horizontal wall of the packages 20.
• the packages 20 do not include an upper horizontal wall but only a bottom or lower horizontal wall and four vertical side walls.
• the lower perforations located in the bottom of the packages 20 constitute holes facing each other when the packages are stacked in the same direction.
• each package 20 has an axis of symmetry 26 parallel to the width L2 of the packaging and which cuts the depth P2 (or length) at two right angles into two identical portions and a center of symmetry S located at the intersection of the diagonals of the rectangular bottom.
• each package 20 firstly comprises two large triangular perforations 22a, one of the sides of which follows the widest edge of the bottom and forms a base of width C2, the large triangle advancing towards the opposite edge over a distance B2 corresponding to the height of the large triangle.
• the two large triangular perforations 22a are located on either side of the axis of symmetry 26.
• a first rectangular perforation 22c is located between the two large triangular perforations 22a and could have any other shape of contour.
• a second rectangular perforation 22c is the symmetrical of the first rectangular perforation 22c with respect to the center of symmetry S.
• the lower perforations (22a, 22b, 22c) of the packages 20 comprise at least one small lower perforation 22b whose dimensions are smaller than those of the holes 22a which can serve as a guide for the pillars 30 and located symmetrically at the lower perforation of these holes 22a relative to the center of symmetry S of the lower horizontal wall of the packages 20 and at least the packages 20 of the first layer of said upper set of packages 20b are stacked after having undergone a rotation of 180 * around a vertical axis with respect to the packages 20 of said lower set of packages 20a so that the pillars 30 are found in alignment with small lower perforations 22b of the first layer of the upper set of packages 20b.
• the small triangular perforations 22b there are, on either side of the second rectangular perforation 22c, two small triangular perforations 22b which are the symmetrics of the large triangular perforations 22a with respect to the center of symmetry S.
• the small triangular perforations 22b have a base of width C1 and a height Bl which are respectively less than the width C2 and the height B2 of the large triangular perforations 22a.
• this configuration allows each of the two large triangular perforations 22a of the packaging from below to be aligned vertically with one of the two small triangular perforations 22b of the packaging located above.
• this configuration by making the vertical projection of the contour of a large triangular perforation 22a of the packaging from below on the bottom of the packaging situated above, the contour drawn in dotted lines in FIG. 2B is obtained.
• the area of the surface of the bottom of the package located above lying between the dotted outline and the outline of the small triangular perforation 22b which is set back with respect to said dotted outline corresponds to a bearing area 23 whose role will be described later.
• each of the two largest side walls has three perforations which are, in the example shown in FIG. 2A, similar to the rectangular perforations 22c, situated in the vertical alignment of the perforations at the bottom of the package and open out at the upper end of the side walls.
• FIG. 3 represents a lower set 20a of packages 20 constituted by three layers of packages through which are inserted six pillars of resistance to vertical compression resistance 30.
• each pillar 30 rests on the plate of the pallet 10.
• the upper end of each pillar 30 is then at the level of the upper end of the vertical walls of the packages 20 of the third layer or upper layer of the lower package assembly 20a.
• the intermediate plate 40 is then placed which rests on the upper end of the pillars 30 and on the upper end of the vertical walls of the packages of the upper layer of the lower package assembly 20a.
• the last step consists of stacking the packages constituting the upper set of packages 20b: they are inverted with respect to the packages of the lower set of packages 20a because they have been rotated 180 * around an axis vertical with respect to the packages of the lower set of packages 20a.
• the pillars 30 and the lower package assembly 20a support the weight of the upper package assembly 20b which will for example consist of six layers of packages 20.
• the weight of this upper package assembly 20b is distributed over the pillars 30 and on the intermediate plate 40.
• the intermediate plate 40 serves as a stop or leveling element between the upper package assembly 20b and the lower package assembly 20a.
• the pillars 30 being more resistant to vertical compression than the lower set of packages 20a, they do not collapse. It is therefore necessary that the intermediate plate 40 does not deform due to the tendency to punching by the pillars 30 which counterbalances the weight of the upper set of packages 20b. So as not to have to provide an intermediate plate 40 having a greater composition of raw material, it has been thought to reinforce this intermediate plate 40 by the bottom of the packages of the lower layer of the upper set of packages 20b.
• each pillar 30 On the upper end of each pillar 30 successively rests the intermediate plate 40, a bearing zone 23 consisting of a zone at the bottom of a package then the contents of this package and other packaging stacked on top. There are thus two thicknesses of cardboard above the upper end of each pillar 30, which avoids any deformation due to the pillars 30.
• the outer contour of the pillars 30, in section in a plane perpendicular to their height H3, has a profile whose width A is identical to the width B2 of the holes 22a which can serve as a guide for the pillars 30.
• the pillars 30 have a profile in the form of V, the perforations 22a, 22b having an internal contour of triangular shape.
• the hollowed-out parts 42 are cut out in the intermediate plate 40 and the pillars 30 are formed, by folding, in the cut-out parts of the intermediate plate 40 so that the zones of the intermediate plate 40 which rest on the upper ends of the pillars 30 do not belong to the recessed parts 42.
• the pillar 30 is made from a flat cut with grooves which will be taken from the plate 40, simultaneously creating the hollowed-out part 42 which makes it possible to ensure vertical ventilation.
• the dimensions of the large triangular perforations 22a and those of the pillar 30 are provided so that the pillar 30 follows the outline of the perforation 22a: this is possible because the pillar has a certain elasticity due to its V shape. This allows the pillar 30 to be in horizontal abutment with the large triangular perforations 22a and thus to reinforce the resistance to vertical compression and resistance to horizontal bending of each package of the lower set 20a of packages.
• the lateral flanks of the packages 20 of the lower assembly 20 a of packages have a rectangular outline 24 (solid lines) of width H2 and length L2 or P2.
• the force F of vertical compression is applied on the lateral flank whose lateral edges end up bending and a contour is deformed inward or inward. outside the lateral flank (dotted lines in FIG. 4). Thanks to the pillars 30, the vertical walls of the packages 20 of the lower assembly 20a of packages resist bending better.
• the height of the lower packaging assembly 20a is at most equal to one third of the total height H1 of the lower assemblies 20a and upper 20b of packages when the packages are stacked on the pallet 10.

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

Applications Claiming Priority (3)

Publications (2)

Family

ID=9482235

Family Applications (1)

Country Status (6)

Families Citing this family (5)

Family Cites Families (11)

• 1995
  • 1995-09-04 FR FR9510332A patent/FR2738220B1/fr not_active Expired - Fee Related
• 1996
  • 1996-09-03 EP EP96930198A patent/EP0850179B1/de not_active Expired - Lifetime
  • 1996-09-03 US US09/029,423 patent/US6041570A/en not_active Expired - Fee Related
  • 1996-09-03 ES ES96930198T patent/ES2133998T3/es not_active Expired - Lifetime
  • 1996-09-03 WO PCT/FR1996/001343 patent/WO1997009246A1/fr active IP Right Grant
  • 1996-09-03 DE DE69602282T patent/DE69602282T2/de not_active Expired - Fee Related

Non-Patent Citations (1)

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