EP2956371B1 - Wedge for immobilizing objects in a box having a square or rectangular cross-section - Google Patents

Wedge for immobilizing objects in a box having a square or rectangular cross-section Download PDF

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Publication number
EP2956371B1
EP2956371B1 EP14709724.0A EP14709724A EP2956371B1 EP 2956371 B1 EP2956371 B1 EP 2956371B1 EP 14709724 A EP14709724 A EP 14709724A EP 2956371 B1 EP2956371 B1 EP 2956371B1
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EP
European Patent Office
Prior art keywords
central part
wedge
articulations
flaps
sheet
Prior art date
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Application number
EP14709724.0A
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German (de)
French (fr)
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EP2956371A1 (en
Inventor
Christian Esnault
Claude Durand
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B+ Equipment (SAS)
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B+ Equipment (SAS)
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Publication of EP2956371A1 publication Critical patent/EP2956371A1/en
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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
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/02—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage
    • B65D81/05—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents
    • 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
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/20—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form
    • 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
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/4266—Folding lines, score lines, crease lines
    • 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
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/44—Integral, inserted or attached portions forming internal or external fittings
    • B65D5/50—Internal supporting or protecting elements for contents
    • B65D5/5028—Elements formed separately from the container body
    • B65D5/5035—Paper 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
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/02—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage
    • B65D81/05—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents
    • B65D81/053—Corner, edge or end protectors

Definitions

  • the present invention relates to a wedging element for immobilizing objects in a cardboard box, corrugated cardboard or similar sheet material, whose section is square or rectangular, especially for the purpose of shipping and transporting said objects, such boxes having a flat bottom of polygonal shape (generally rectangular or square) and four sides or side walls.
  • the technical field of the invention is that of machines, manufacture, packaging or closure of packaging and that of the manufacture and implementation of cushioning materials for such packaging.
  • the present invention more particularly relates to a wedging element intended to be set up inside boxes used for the preparation and shipping of single or multi-item orders and more generally boxes whose content occupies a volume. variable from one box to another and, most of the time, substantially less than the total volume of the box, in which case said cushioning material serves to immobilize the articles within the useful volume of the box.
  • boxes of this type are formed by machines from one or more flanks of foldable rigid sheet material and whose upper part comprises different shutters and closure flaps assembled by gluing or by adhesive tape or a styling lid. said upper part. These boxes have the characteristic of offering a constant volume after manufacture and closure.
  • wedging means constituted by heat-shrinkable plastic films, one or more sheets of which are secured to the bottom or the side walls of the box during its forming. After filling the box, these films are folded on the stack of objects and then retracted by passing through a heating tunnel.
  • Another method of wedging is to use inflatable plastic bags that are arranged inside the boxes to fill this unused volume.
  • wedging elements which are in the form of a sheet of cardboard, corrugated cardboard or equivalent sheet material, having a central portion which is brought into contact with the upper surface of the stack of objects arranged in the box, and foldable shutters, on at least two sides of the central portion of the sheet, which are folded and fixed, for example by gluing, against the inner face of the side walls of said box.
  • Such locking elements are, for example, described in the document EP-1 197 436 .
  • the documents FR-2,828,169 , DE-2 02 04 975 , EP-1 452 453 , EP-0 251 945 , US-6,216,871 , FR-1,575,635 , FR-919,469 , U.S. 3,108,731 , U.S. 2,883,046 and FR-2,770,447 illustrate other embodiments of calibration elements of this type or the technological background.
  • This device is constituted by a plate made of a semi-rigid material, such as cardboard or corrugated cardboard, comprising a polygonal central part of which at least two parallel edges are articulated, by fold lines, strips or shutters, whose faces disposed opposite the side walls of the box or box containing the objects to be shipped are provided with an adhesive to make them integral with said walls. It is indicated incidentally that the central portion has fold lines parallel to two of its parallel edges which allow to deform said plate to apply it to parts of different heights of hybrid batches of articles to maintain in position in the boxes.
  • the polygonal central portion of the wedging plate has only two fold lines or grooves parallel to its short sides. Said central part also has two attenuation lines that are close parallel to its long sides, but it is not a question of folding lines, but of pre-cutting lines associated with a tear strip provided with a tongue or "head of viper" traction.
  • the solution to the problem is to make a wedge for wedging objects, particularly heterogeneous objects, in a box having a bottom and at least four faces or side walls attached to said bottom by fold lines or joints, this wedge being constituted by a sheet of cardboard, corrugated cardboard or other equivalent rigid and foldable material, comprising a central portion of polygonal shape, for example square or rectangular or approximately square or rectangular, of dimensions substantially equivalent to those of the bottom of said box, said portion central being attached, on at least two of its parallel sides, to at least one and preferably to several foldable flaps, by means of fold lines or joints, said wedge being particularly remarkable in that its central portion comprises a plurality of creases (also called grooves and consist of curve segments or right along which the material is crushed and its reduced thickness) whose two ends terminate at the periphery of said central portion and, preferably, at the ends of the joints between the different flaps and said central portion or outside of said joints, these creases are not parallel to each other, neither with the long sides of the central part of the hold,
  • the ends of the creases terminate on two adjacent sides of the central portion of the wedging sheet.
  • the joints which are parallel to the groove, between the different parts and the central part are not contiguous but are preceded and replaced by segments of straight or curve belonging to the periphery of the central portion of said wedge and substantially tangent with said joints.
  • the joints which are not parallel to the groove (or, if the material is homogeneous, all the joints), between the different parts and the part central, are not contiguous but are preceded and followed by segments of line or curve whose ends are substantially tangent with the periphery of said flaps at the points of intersection with said joints.
  • the wedge can be made of a strong and strong rigid material but that it can still be deformed, without exerting very great effort, by folding the material around the creases that have been made on the central part of said wedge.
  • said central portion also comprises a pre-cut tear initiation (consisting of a succession of curve or straight segments along which the material is cut over all or part of its thickness) which delimits a closed outline of small area.
  • said central portion also comprises other pre-cuts distributed over the surface of said central portion from the small closed contour of the tear pre-cut precut.
  • the joints which are parallel to the groove, between the different flaps and the central part are characterized by the superposition of a creasing and, on at least part of the joint, of a pre-cut, without these pre-cuts reaching the end of said joints.
  • the figure 1 shows a type of box 1 which is composed of a bottom 1e and four sidewalls 1a, 1b, 1c and 1d, this type of box being commonly used for shipping parcels containing various articles of different shapes which, when they are housed in the box, may have a very uneven top surface.
  • the bottom 1e has a rectangular shape, so that the box provided with this bottom has the shape of a rectangular parallelepiped.
  • the side walls 1a and 1c are parallel to the width of the box 1 and the side walls 1b and 1d are parallel to the length of the box 1.
  • bottom and the side walls could have a different shape, for example a square shape or a general square or rectangular shape with cut corners.
  • This box 1 can be made of cardboard, corrugated cardboard, or any other equivalent sheet material having the required qualities of rigidity and possibility of folding.
  • the figure 2 shows a shim made according to the invention.
  • Said shim 2 comprises a central portion 2k of shape and dimensions substantially equivalent to those of the bottom 1e of the box 1, so as to slide without significant play between the side walls of said box during its insertion into the latter.
  • Said shim 2 also comprises foldable shutters 2a, 2b, 2c, 2d, 2e, 2f, 2g, 2h, 2i and 2j.
  • Said shim 2 may be constituted by a rigid sheet made of rigid and deformable cardboard, corrugated cardboard, or any other equivalent sheet material identical or not to that in which are made boxes likely to receive such a wedging element.
  • said creases 4a, 4b, 4c, 4d, 4e, 4f, 4g, 4h, 4i and 4j constitute folding lines which make it possible to reduce the area of said flaps applied against the internal face of said four lateral walls in favor of the surface brought into contact with said stack of objects when it is not flat and therefore has a surface area greater than that of said central portion 2k.
  • the figure 3 shows said wedge 2 made according to the invention, consisting of the central portion 2k and foldable flaps 2a, 2b, 2c, 2d, 2e, 2f, 2g, 2h, 2i and 2j.
  • said flaps have been folded upwardly around said joints 3a, 3b, 3c, 3d, 3e, 3f, 3g, 3h, 3i and 3j.
  • Adhesive lines 5c, 5d, 5e, 5f and 5g are seen when the wedging element 2 has been inserted into the latter.
  • the figure 4 also shows said wedge 2 made according to the invention, and shown flat, before folding and raising the peripheral flaps.
  • the central portion 2k of the sheet comprises a plurality of creases 6a, 6b, 6c, 6d consisting of curve or straight segments, along which the material in which said sheet is executed, is crushed and its thickness reduced.
  • the two ends or each creasing 6a, 6b, 6c, 6d lead to the periphery or near the periphery of said central portion 2k of said sheet; on the other hand, the two ends of this creasing or of each creasing end preferably at the ends of the joints 3a, 3b, 3c, 3d, 3e, 3f, 3g, 3h, 3i and 3j between said foldable flaps and said portion 2k, or outside said joints.
  • the creases 6a, 6b, 6c, 6d are not parallel to one another, nor to the sides of the central portion 2k of the sheet 2 (in the case of a square-shaped central portion), or neither with the long sides of the central part 2k of the plate 2, nor with the short sides of said central part (in the case of a central part of rectangular shape).
  • each groove 6a, 6b, 6c, 6d end on two adjacent sides, respectively 3j-3i-3h 3g-3f; 3g-3f 3e-3d-3c; 3e-3d-3c 3b-3a; 3b-3a 3j-3i-3h, of the central portion 2k of the hold 2.
  • each groove 6a, 6b, 6c, 6d end at the ends of the joints 3a, 3b, 3c, 3d, 3e, 3f, 3g, 3h, 3i, 3j, between the foldable flaps and the central part, or to outside said joints.
  • Said creasing 6a has an end substantially coincident with one of the ends of said joints 3d and 3e of said shutters 2d and 2e and its other end terminates between the ends of said joints 3f and 3g of said shutters 2f and 2g and at a distance from the ends of two joints successive.
  • said creasing 6b has an end which terminates between the ends of said joints 3f and 3g of said flaps 2f and 2g and at a distance from the ends of said successive joints and its other end is substantially coincidental with one of the ends of said joints 3h and 3i of said flaps 2h and 2i
  • said creasing 6c has an end substantially coincident with one of the ends of said hinges 3i and 3j of said flaps 2i and 2j and at a distance from the ends of said successive hinges and its other end terminates between the ends of said hinges 3a and 3b of said flaps 2a and 2b
  • said creasing 6d has an end which terminates between the ends of said hinges 3a and 3b of said flaps 2a and 2b and at a distance from the ends of said successive hinges and its other end substantially coincides with one of said ends. joints 3c and 3d of said flaps 2c and 2d.
  • said creases 6a, 6b, 6c and 6d constitute folding lines for said central portion 2k, which facilitate the deformation of said wedge 2 which can take a a wide variety of conformations, to best fit the shape of the upper face of said stack of objects, especially when said wedge is made of a strong and rigid material.
  • the central portion 2k of the sheet could comprise grooves of various shapes adapted to specific articles to be shipped and transported in the boxes.
  • the pre-cut 7 in the form of a non-circular ring.
  • This pre-cut 7 consists of a succession of straight or curved segments along which the material is cut over all or part of its thickness. Said precut 7 defines a closed contour of small area. It is understood that the portion of material included in this closed contour is attached to said central portion 2k but can be easily detached from said central portion 2k by depressing or tearing said material.
  • pre-cut sets 8a, 8b, 8c and 8d pre-cut sets 8a, 8b, 8c and 8d. It will be understood that when the portion of material included in the closed contour delimited by said precut 7 has been detached, it is possible to open said central portion 2k, by exerting a pull from the opening resulting from the tearing out. the portion of material defined by the precut 7, so as to detach and lift the material languages 14a, 14b, between the cutting torques 8a, 8b and 8c, 8d, and thereby open a large part of the part central 2k, then we have easy access to items previously housed in the box.
  • zones A, B, C and D These zones of said wedge 2 are shown in greater detail respectively on the Figures 5, 6 , 7 and 8 .
  • zone E In the particular representation mode illustrated by the figure 4 , the material used for producing said wedge 2 is corrugated cardboard or other material incorporating a corrugated sheet. Said zone E illustrates a "cutaway" view of said wedge 2 which shows the groove of said material.
  • the figure 5 shows in detail the zone A of said wedge 2 made according to the invention.
  • This figure shows the central portion 2k and the foldable flap 2f.
  • the hinge 3f which connects said flap 2f to said central portion 2k.
  • said articulation 3f is parallel to the groove of the material used for producing said wedge 2, when it is corrugated cardboard, and we also see on the figure 5 said articulation 3f consists of the superposition of a creasing 9f and a precut 10f, itself consisting of a succession of straight segments along which the material is cut over all or part of its thickness.
  • joints 3a, 3b and 3g parallel to the groove of the material used for producing said wedge 2, are likewise constituted by the superposition of a crease and a precut.
  • the figure 6 shows in detail the zone B of said wedge 2 made according to the invention.
  • the central part 2k and the foldable flap 2j We also see on the figure 6 the hinge 3j which connects said flap 2j to said central portion 2k.
  • the foldable flap 2a and the hinge 3a which connects said flap 2a to said central portion 2k.
  • point 11ja which corresponds to one of the angles of the rectangle formed by said central portion 2k in the particular embodiment shown. It can be seen that said point 11ja is located at the intersection of the lines aligned on said joints 3j and 3a.
  • said hinge 3a is constituted by the superposition of a creasing 9a and a precut 10a.
  • said hinge 3a is parallel to the groove of the material used for producing said shim 2.
  • the figure 7 shows, in detail, the zone C of said wedge 2 made according to another embodiment of the invention.
  • This figure shows the central portion 2k and the foldable flap 2a.
  • the articulation 3a consisting of the superposition of the creasing 9a and the precut 10a, which connects said flap 2a to said central portion 2k.
  • the foldable flap 2b and the hinge 3b consisting of the superposition of the creasing 9b and the precut 10b, which connects said flap 2b to said central portion 2k.
  • Said segment 12ab which belongs to the periphery of said central portion 2k.
  • Said segment 12ab has the characteristic of being tangent to said articulation 3a, at point 3ab, and of being also tangent to said articulation 3b, at point 3ba. It is understood that this characteristic makes it possible to favor the folding of said shutter 2a along said creasing 9a and of said precut 10a, starting from the point 3ab as well as the folding of said shutter 2b along said creasing 9b and said precut 10b, starting from point 3ba.
  • the figure 8 shows, in detail, the zone D of said shim 2 made according to another embodiment of the invention.
  • This figure shows the central portion 2k and the foldable flap 2h.
  • the hinge 3h which connects said flap 2h to said central portion 2k.
  • the foldable flap 2i and the hinge 3i which connects said flap 2i to said central portion 2k.
  • the curve segment 13hi which belongs to the periphery of said central portion 2k.
  • Said segment 13hi has the characteristic of being tangent to the periphery of said folding flap 2h at point 3hi and also tangent to the periphery of said foldable flap 2i at point 3ih. It is understood that this characteristic makes it possible to avoid weakening said joints 3h and 3i by creating a breaking primer respectively at the points 3hi and 3ih.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Catalysts (AREA)

Description

La présente invention est relative à un élément de calage pour immobiliser des objets dans une boîte en carton, carton ondulé ou en matière en feuilles analogue, dont la section est carrée ou rectangulaire, notamment en vue de l'expédition et du transport desdits objets, de telles boîtes comportant un fond plat de forme polygonale (généralement rectangulaire ou carrée) et quatre faces ou parois latérales.The present invention relates to a wedging element for immobilizing objects in a cardboard box, corrugated cardboard or similar sheet material, whose section is square or rectangular, especially for the purpose of shipping and transporting said objects, such boxes having a flat bottom of polygonal shape (generally rectangular or square) and four sides or side walls.

Le domaine technique de l'invention est celui des machines, de fabrication, conditionnement ou de fermeture d'emballages et celui de la fabrication et de la mise en oeuvre de matériaux de calage pour de tels emballages.The technical field of the invention is that of machines, manufacture, packaging or closure of packaging and that of the manufacture and implementation of cushioning materials for such packaging.

La présente invention est plus particulièrement relative à un élément de calage destiné à être mis en place à l'intérieur de boîtes utilisées pour la préparation et l'expédition de commandes mono ou multi-articles et plus généralement de boîtes dont le contenu occupe un volume variable d'une boîte à une autre et, la plupart du temps, sensiblement inférieur au volume total de la boîte, auquel cas ledit matériau de calage a pour fonction d'immobiliser les articles à l'intérieur du volume utile de la boîte.The present invention more particularly relates to a wedging element intended to be set up inside boxes used for the preparation and shipping of single or multi-item orders and more generally boxes whose content occupies a volume. variable from one box to another and, most of the time, substantially less than the total volume of the box, in which case said cushioning material serves to immobilize the articles within the useful volume of the box.

On sait que les boîtes de ce type sont formées par des machines à partir d'un ou plusieurs flancs de matière en feuille pliable rigide et dont la partie supérieure comporte différents volets et rabats de fermeture assemblés par collage ou par ruban adhésif ou un couvercle coiffant ladite partie supérieure. Ces boîtes ont pour caractéristique d'offrir un volume constant après fabrication et fermeture.It is known that boxes of this type are formed by machines from one or more flanks of foldable rigid sheet material and whose upper part comprises different shutters and closure flaps assembled by gluing or by adhesive tape or a styling lid. said upper part. These boxes have the characteristic of offering a constant volume after manufacture and closure.

Plusieurs moyens sont employés par les utilisateurs ou intégrés aux machines de formage ou de fermeture des boîtes, pour caler les objets dont le nombre et le volume unitaire varient d'une boîte à l'autre.Several means are used by the users or integrated in the forming machines or closing the boxes, to wedge objects whose number and unit volume vary from one box to another.

On connaît, par exemple, des moyens de calage constitués par des films en plastique thermorétractable dont une ou plusieurs feuilles sont solidarisées avec le fond ou les parois latérales de la boîte pendant son formage. Après remplissage de la boîte, ces films sont rabattus sur la pile d'objets puis rétractés par passage dans un tunnel chauffant.There are known, for example, wedging means constituted by heat-shrinkable plastic films, one or more sheets of which are secured to the bottom or the side walls of the box during its forming. After filling the box, these films are folded on the stack of objects and then retracted by passing through a heating tunnel.

Un tel procédé présente plusieurs inconvénients. En effet :

  • ce film plastique thermorétractable doit être nécessairement désolidarisé de l'emballage carton avant collecte et recyclage éventuel des déchets correspondants ; cette collecte est donc une opération complexe et très onéreuse ;
  • ce matériau de calage est lui-même coûteux ;
  • sa mise en oeuvre est difficile et nécessite, soit des machines automatisées complexes, soit un grand nombre d'heures de main d'oeuvre ; le coût de ces opérations est donc élevé.
Such a method has several disadvantages. Indeed :
  • this heat-shrinkable plastic film must necessarily be disconnected from the cardboard packaging before collection and possible recycling of the corresponding waste; this collection is therefore a complex and very expensive operation;
  • this cushioning material is itself expensive;
  • its implementation is difficult and requires either complex automated machines or a large number of manpower hours; the cost of these operations is therefore high.

On connaît également l'utilisation de particules de polystyrène ou autre matériau léger, qui sont répandues à l'intérieur de la boîte après introduction des objets, pour combler le volume inutilisé.Also known is the use of polystyrene particles or other lightweight material, which are spread inside the box after introduction of objects, to fill the unused volume.

Un autre procédé de calage consiste à utiliser des poches en plastique gonflables qui sont disposées à l'intérieur des boîtes pour combler ce volume inutilisé.Another method of wedging is to use inflatable plastic bags that are arranged inside the boxes to fill this unused volume.

Il est également connu d'utiliser des copeaux, particules, boules agglomérées,... de papier, de carton ou de bois qui sont, sous diverses formes, disposés à l'intérieur des boîtes pour combler le volume non occupé par les objets.It is also known to use chips, particles, agglomerated balls, paper, cardboard or wood which are, in various forms, arranged inside the boxes to fill the volume not occupied by the objects.

De tels processus de fabrication présentent également plusieurs inconvénients.Such manufacturing processes also have several disadvantages.

En effet :

  • le dosage de la distribution de ces matériaux de calage, de façon à occuper exactement le volume inutilisé, est une opération difficilement automatisable qui nécessite, soit des machines automatisées complexes, soit un grand nombre d'heures de main d'oeuvre; le coût de ces opérations est donc élevé ;
  • la collecte de ces matériaux après ouverture de l'emballage, nécessite de rassembler une multitude d'éléments épars et est donc une opération peu aisée à réaliser pour l'utilisateur final.
Indeed :
  • the dosage of the distribution of these setting materials, so as to occupy exactly the unused volume, is an operation that is difficult to automate and which requires either complex automated machines or a large number of hours of labor; the cost of these operations is therefore high;
  • the collection of these materials after opening the package, requires gathering a multitude of scattered elements and is therefore an operation difficult to achieve for the end user.

On connaît enfin des éléments de calage qui se présentent sous la forme d'une feuille de carton, carton ondulé ou matériau en feuille équivalent, comportant une partie centrale qui est mise en contact avec la surface supérieure de la pile d'objets disposés dans la boîte, et des volets pliables, sur au moins deux des côtés de la partie centrale de la feuille, qui sont rabattus et fixés, par exemple par collage, contre la face interne des parois latérales de ladite boîte.Also known are wedging elements which are in the form of a sheet of cardboard, corrugated cardboard or equivalent sheet material, having a central portion which is brought into contact with the upper surface of the stack of objects arranged in the box, and foldable shutters, on at least two sides of the central portion of the sheet, which are folded and fixed, for example by gluing, against the inner face of the side walls of said box.

De tels éléments de calage sont, par exemple, décrits dans le document EP-1 197 436 . Les documents FR-2 828 169 , DE-2 02 04 975 , EP-1 452 453 , EP-0 251 945 , US-6 216 871 , FR-1 575 635 , FR-919 469 , US-3 108 731 , US-2 883 046 et FR-2 770 447 illustrent d'autres modes d'exécution d'éléments de calage de ce type ou l'arrière-plan technologique.Such locking elements are, for example, described in the document EP-1 197 436 . The documents FR-2,828,169 , DE-2 02 04 975 , EP-1 452 453 , EP-0 251 945 , US-6,216,871 , FR-1,575,635 , FR-919,469 , U.S. 3,108,731 , U.S. 2,883,046 and FR-2,770,447 illustrate other embodiments of calibration elements of this type or the technological background.

La mise en oeuvre de l'élément de calage décrit dans le document EP-1 197 436 présente de nombreux avantages :

  • cet élément de calage n'a pas pour objet d'occuper l'ensemble du volume non utilisé à l'intérieur de la boîte ; la quantité de matériau utilisée est toujours la même et reste modérée, y compris lorsque les objets préalablement conditionnés n'occupent qu'une très faible partie du volume de la boîte ;
  • cette feuille peut être réalisée dans un matériau similaire à celui qui est employé pour fabriquer la boîte elle-même, ce qui simplifie grandement les opérations de recyclage des déchets issus des éléments constituant un tel emballage ;
  • la dépose et la fixation de cette feuille à l'intérieur de la boîte sont des opérations dont la mécanisation peut être automatisée.
The implementation of the calibration element described in the document EP-1 197 436 has many advantages:
  • this wedging element is not intended to occupy the entire unused volume inside the box; the quantity of material used is always the same and remains moderate, even when the previously packaged objects occupy only a very small part of the volume of the box;
  • this sheet may be made of a material similar to that used to manufacture the box itself, which greatly simplifies the recycling operations of the waste from the elements constituting such a package;
  • the removal and fixing of this sheet inside the box are operations whose mechanization can be automated.

Mais la mise en oeuvre d'un tel élément de calage présente également différents inconvénients.But the implementation of such a wedging element also has various disadvantages.

En effet :

  • la partie centrale plane de la feuille de calage doit être suffisamment robuste et rigide pour résister aux contraintes liées au transport de la boîte et maintenir de manière stable les produits logés dans celle-ci ; dans ces conditions, il est donc souvent nécessaire d'exercer des efforts importants pour la déformer, afin que la plus grande partie de sa surface soit au contact de la surface supérieure de la pile d'objets ; ces efforts sont inévitablement transmis à certains de ces objets et peuvent les endommager si certains de ceux-ci sont fragiles ;
  • lorsque le couvercle de la boîte est retiré, cette feuille de calage constitue un obstacle qui empêche d'accéder directement aux objets conditionnés ; il est pour cela nécessaire d'arracher cette feuille, mais cette opération est rendue difficile par l'absence de zone de préhension ; pour rendre cette opération plus aisée, on sait que les fabricants déposent habituellement un ruban en plastique, appelé bande d'arrachage, sur la face inférieure des couvercles de boîtes, afin de faciliter l'ouverture du couvercle par déchirement du couvercle le long de la ligne matérialisée par ce ruban ; le problème est que cette bande d'arrachage ne peut être déposée aisément par les fabricants que sur la face du couvercle sur laquelle sont faits les rainages (également appelés rainurages) qui marquent l'emplacement des plis des volets ; sur un couvercle, cette face correspond bien à la face inférieure; dans le cas d'une feuille de calage telle que décrite, la face sur laquelle sont faits les rainages correspond à la face supérieure de la cale ; il n'est donc pas possible de déposer aisément une bande d'arrachage sur la face inférieure de la cale ;
  • le matériau employé pour la réalisation d'une telle feuille de calage est le plus souvent du carton ondulé ; ce matériau, constitué dans sa version dite "simple cannelure" de 3 feuilles de papier superposées (deux feuilles planes emprisonnant une feuille ondulée) pose un problème particulier lié à son caractère anisotrope : en effet, le pliage des différents volets le long des rainages qui sont disposés perpendiculairement aux cannelures du matériau ne pose pas de problème particulier, tandis que le pliage des volets le long des rainages disposés parallèlement aux cannelures du matériau a tendance à dévier de la ligne de pliage théorique matérialisée par le rainage au profit d'une ligne de pliage le plus souvent polygonale, correspondant au moindre effort à fournir pour plier le volet compte tenu de la position des ondulations de la cannelure dans la zone de pliage ; il résulte de ce cette déviation une géométrie de cale incorrecte avec des dimensions entre volets repliés qui peuvent varier dans des proportions importantes (de l'ordre de l'épaisseur de la feuille de calage, c'est-à-dire plusieurs millimètres) ;
  • la zone de pliage qui relie les volets à la partie centrale de la feuille est une zone de fragilité ; si des précautions particulières ne sont pas prises lors de la fabrication de cette feuille de calage, il existe un risque important de déchirure de la matière le long de ce pli.
Indeed :
  • the flat central part of the wedging sheet must be sufficiently robust and rigid to withstand the constraints of transporting the box and stably maintain the products housed therein; under these conditions, it is therefore often necessary to exert great efforts to deform it, so that the greater part of its surface is in contact with the upper surface of the stack of objects; these efforts are inevitably transmitted to some of these objects and can damage them if some of them are fragile;
  • when the cover of the box is removed, this blocking sheet constitutes an obstacle which prevents direct access to the packaged objects; he is for that it is necessary to tear off this leaf, but this operation is made difficult by the absence of a gripping zone; to make this operation easier, it is known that manufacturers usually deposit a plastic tape, called tear tape, on the underside of the can covers, to facilitate the opening of the lid by tearing the lid along the line materialized by this ribbon; the problem is that this tear strip can be easily deposited by manufacturers on the face of the cover on which are made creases (also called grooves) which mark the location of the folds of the shutters; on a lid, this face corresponds to the lower face; in the case of a wedging sheet as described, the face on which the creases are made corresponds to the upper face of the wedge; it is therefore not possible to easily drop a tear strip on the underside of the hold;
  • the material used for the production of such a setting sheet is most often corrugated cardboard; this material, constituted in its so-called "single-flute" version of 3 sheets of paper superimposed (two flat sheets trapping a corrugated sheet) poses a particular problem related to its anisotropic nature: indeed, the folding of the various flaps along the creases which are arranged perpendicular to the grooves of the material does not pose any particular problem, while the folding of the flaps along the grooves arranged parallel to the grooves of the material tends to deviate from the theoretical fold line materialized by the creasing in favor of a line most often polygonal folding, corresponding to the least effort required to fold the flap given the position of the undulations of the groove in the fold zone; it results from this deviation incorrect wedge geometry with dimensions between folded flaps which can vary in significant proportions (of the order of the thickness of the wedging sheet, that is to say several millimeters);
  • the fold zone that connects the flaps to the central part of the sheet is an area of weakness; if special precautions are not taken during the manufacture of this setting sheet, there is a significant risk of tearing the material along this fold.

Le problème posé consiste donc à procurer un moyen de calage sous la forme d'une feuille de carton, carton ondulé ou matériau en feuille équivalent, comportant une partie centrale qui est mise en contact avec la surface supérieure de la pile d'objets disposés dans la boîte et des volets pliables, sur au moins deux des côtés de la feuille, qui sont destinés à être rabattus et fixés, par exemple par collage, contre la face interne des parois latérales de ladite boîte, cette feuille :

  • devant avoir une partie centrale suffisamment robuste et rigide pour résister aux contraintes liées au transport de la boîte et maintenir correctement les produits dans ces conditions, mais être également suffisamment déformable pour que la plus grande partie de sa surface puisse être mise au contact de la surface supérieure de la pile d'objets sans exercer des efforts importants sur ces objets ;
  • devant permettre un pliage précis des volets le long de la ligne de pliage théorique au niveau de leur articulation avec la partie centrale de la feuille, sans fragiliser exagérément ladite articulation.
The problem thus posed is to provide a wedging means in the form of a sheet of cardboard, corrugated cardboard or equivalent sheet material, having a central portion which is brought into contact with the upper surface of the stack of objects disposed in box and foldable shutters, on at least two sides of the sheet, which are intended to be folded and fixed, for example by gluing, against the inner face of the side walls of said box, this sheet:
  • having a central portion sufficiently robust and rigid to withstand the constraints of transporting the box and properly maintain the products under these conditions, but also be deformable enough so that most of its surface can be brought into contact with the surface upper stack of objects without exerting significant effort on these objects;
  • to allow a precise folding of the flaps along the theoretical fold line at their articulation with the central portion of the sheet, without unduly weakening said joint.

Le dispositif décrit dans le document FR-2 828 169 ne permet pas de résoudre efficacement le problème exposé précédemment. Ce dispositif est constitué par une plaque en un matériau semi-rigide, tel que carton ou carton ondulé, comprenant une partie centrale polygonale dont au moins deux bords parallèles sont articulés, par des lignes de pliage, des bandes ou des volets, dont les faces disposées en regard des parois latérales de la caisse ou boîte contenant les objets à expédier sont munies d'un adhésif permettant de les rendre solidaires desdites parois. Il est indiqué incidemment que la partie centrale comporte des lignes de pliage parallèles à deux de ses bords parallèles lesquelles permettent de déformer ladite plaque pour l'appliquer sur des parties de hauteurs différentes de lots hybrides d'articles à maintenir en position dans les boîtes. Selon le mode d'exécution illustré à la figure 3 du document FR-2 828 169 , la partie centrale polygonale de la plaque de calage comporte seulement deux lignes de pliage ou rainages parallèles à ses petits côtés. Ladite partie centrale comporte, d'autre part, deux lignes d'affaiblissement rapprochées parallèles à ses grands côtés, mais il ne s'agit pas de lignes de pliage, mais de lignes de prédécoupage associées à une bande d'arrachage munie d'une languette ou "tête de vipère" de traction.The device described in the document FR-2,828,169 does not effectively solve the problem discussed above. This device is constituted by a plate made of a semi-rigid material, such as cardboard or corrugated cardboard, comprising a polygonal central part of which at least two parallel edges are articulated, by fold lines, strips or shutters, whose faces disposed opposite the side walls of the box or box containing the objects to be shipped are provided with an adhesive to make them integral with said walls. It is indicated incidentally that the central portion has fold lines parallel to two of its parallel edges which allow to deform said plate to apply it to parts of different heights of hybrid batches of articles to maintain in position in the boxes. According to the embodiment shown in figure 3 of the document FR-2,828,169 , the polygonal central portion of the wedging plate has only two fold lines or grooves parallel to its short sides. Said central part also has two attenuation lines that are close parallel to its long sides, but it is not a question of folding lines, but of pre-cutting lines associated with a tear strip provided with a tongue or "head of viper" traction.

Un tel agencement de la feuille de calage ne permet pas de résoudre le problème du calage efficace d'objets hétéroclites.Such an arrangement of the wedging sheet does not solve the problem of effective wedging of heterogeneous objects.

En effet,

  • soit la feuille de calage est réalisée dans un matériau trop rigide et, dans ce cas :
  • elle ne peut épouser au plus près la surface supérieure de hauteur inégale de la pile d'objets ;
  • elle peut exercer des pressions importantes sur ladite surface supérieure, de sorte que certains objets fragiles peuvent être écrasés et détériorés par cette pression ;
  • soit la feuille de calage est exécutée dans un matériau trop souple et elle risque de s'ouvrir si les lignes de prédécoupage cèdent sous la pression, en entraînant la déchirure de ladite feuille de calage, lors de son enfoncement dans la boîte.
Indeed,
  • either the wedging sheet is made of a material that is too rigid and, in this case:
  • it can not marry more closely the upper surface of unequal height of the pile of objects;
  • it can exert significant pressure on said upper surface, so that some fragile objects can be crushed and deteriorated by this pressure;
  • either the wedging sheet is made of a material that is too soft and it may open if the precut lines give way under pressure, causing the tearing of said blocking sheet during its insertion into the box.

La solution au problème posé consiste à réaliser une cale permettant de caler des objets, en particulier des objets hétéroclites, dans une boîte comportant un fond et au moins quatre faces ou parois latérales rattachées audit fond par des lignes de pliage ou articulations, cette cale étant constituée par une feuille en carton, carton ondulé ou autre matériau rigide et pliable équivalent, comportant une partie centrale de forme polygonale, par exemple carrée ou rectangulaire ou approximativement carrée ou rectangulaire, de dimensions sensiblement équivalentes à celles du fond de ladite boîte, ladite partie centrale étant rattachée, sur au moins deux de ses côtés parallèles, à au moins un et préférentiellement à plusieurs volets pliables, par l'intermédiaire de lignes de pliage ou articulations, ladite cale étant notamment remarquable en ce que sa partie centrale comporte plusieurs rainages (également appelés rainurages et constitués de segments de courbe ou de droite le long desquels le matériau est écrasé et son épaisseur réduite) dont les deux extrémités aboutissent à la périphérie de ladite partie centrale et, de préférence, aux extrémités des articulations entre les différents volets et ladite partie centrale ou à l'extérieur desdites articulations, ces rainages n'étant pas parallèles entre eux, ni avec les grands côtés de la partie centrale de la cale, ni avec les petits côtés de ladite partie centrale.The solution to the problem is to make a wedge for wedging objects, particularly heterogeneous objects, in a box having a bottom and at least four faces or side walls attached to said bottom by fold lines or joints, this wedge being constituted by a sheet of cardboard, corrugated cardboard or other equivalent rigid and foldable material, comprising a central portion of polygonal shape, for example square or rectangular or approximately square or rectangular, of dimensions substantially equivalent to those of the bottom of said box, said portion central being attached, on at least two of its parallel sides, to at least one and preferably to several foldable flaps, by means of fold lines or joints, said wedge being particularly remarkable in that its central portion comprises a plurality of creases ( also called grooves and consist of curve segments or right along which the material is crushed and its reduced thickness) whose two ends terminate at the periphery of said central portion and, preferably, at the ends of the joints between the different flaps and said central portion or outside of said joints, these creases are not parallel to each other, neither with the long sides of the central part of the hold, nor with the short sides of said central part.

Selon une disposition avantageuse, les extrémités des rainages aboutissent sur deux côtés adjacents de la partie centrale de la feuille de calage.According to an advantageous arrangement, the ends of the creases terminate on two adjacent sides of the central portion of the wedging sheet.

Avantageusement, lorsque le matériau utilisé est du carton ondulé ou tout autre matériau intégrant une feuille ondulée, les articulations qui sont parallèles à la cannelure, entre les différents volets et la partie centrale, ne sont pas contiguës mais sont précédées et succédées par des segments de droite ou de courbe appartenant à la périphérie de la partie centrale de ladite cale et sensiblement tangents avec lesdites articulations.Advantageously, when the material used is corrugated cardboard or any other material incorporating a corrugated sheet, the joints which are parallel to the groove, between the different parts and the central part, are not contiguous but are preceded and replaced by segments of straight or curve belonging to the periphery of the central portion of said wedge and substantially tangent with said joints.

Avantageusement, lorsque le matériau utilisé est du carton ondulé ou tout autre matériau intégrant une feuille ondulée, les articulations qui ne sont pas parallèles à la cannelure (ou, si le matériau est homogène, toutes les articulations), entre les différents volets et la partie centrale, ne sont pas contigües mais sont précédées et suivies par des segments de droite ou de courbe dont les extrémités sont sensiblement tangentes avec la périphérie desdits volets aux points d'intersection avec lesdites articulations.Advantageously, when the material used is corrugated cardboard or any other material incorporating a corrugated sheet, the joints which are not parallel to the groove (or, if the material is homogeneous, all the joints), between the different parts and the part central, are not contiguous but are preceded and followed by segments of line or curve whose ends are substantially tangent with the periphery of said flaps at the points of intersection with said joints.

De ces dispositions, il résulte que la cale peut être réalisée dans un matériau rigide robuste et résistant mais que celle-ci peut être quand même déformée, sans exercer d'effort très important, par pliage du matériau autour des rainages qui ont été réalisés sur la partie centrale de ladite cale.From these provisions, it follows that the wedge can be made of a strong and strong rigid material but that it can still be deformed, without exerting very great effort, by folding the material around the creases that have been made on the central part of said wedge.

Dans un mode de réalisation avantageux, ladite partie centrale comporte également une prédécoupe d'amorce de déchirure (constituée d'une succession de segments de courbe ou de droite le long desquels le matériau est découpé sur tout ou partie de son épaisseur) qui délimite un contour fermé de petite superficie.In an advantageous embodiment, said central portion also comprises a pre-cut tear initiation (consisting of a succession of curve or straight segments along which the material is cut over all or part of its thickness) which delimits a closed outline of small area.

Avantageusement, ladite partie centrale comporte également d'autres prédécoupes réparties sur la surface de ladite partie centrale à partir du contour fermé de petite dimension de la prédécoupe d'amorce de déchirure.Advantageously, said central portion also comprises other pre-cuts distributed over the surface of said central portion from the small closed contour of the tear pre-cut precut.

Ces autres prédécoupes délimitent des langues de déchirure permettant d'obtenir, par simple traction, une large ouverture de la partie centrale de la cale, donnant ainsi accès aux articles logés dans la boîte.These other precuts delimit tear tongues to obtain, by pulling, a wide opening of the central part of the hold, thus giving access to the items housed in the box.

Avantageusement, lorsque le matériau utilisé est du carton ondulé ou tout autre matériau intégrant une feuille ondulée, les articulations qui sont parallèles à la cannelure, entre les différents volets et la partie centrale, se caractérisent par la superposition d'un rainage et, sur au moins une partie de l'articulation, d'une prédécoupe, sans que ces prédécoupes n'atteignent l'extrémité desdites articulations.Advantageously, when the material used is corrugated cardboard or any other material incorporating a corrugated sheet, the joints which are parallel to the groove, between the different flaps and the central part, are characterized by the superposition of a creasing and, on at least part of the joint, of a pre-cut, without these pre-cuts reaching the end of said joints.

Il résulte également qu'il est possible de procéder à l'ouverture de la cale par enlèvement de la matière située à l'intérieur du contour fermé de petite superficie, lequel enlèvement peut être obtenu par enfoncement ou arrachement de ladite matière.It also follows that it is possible to open the shim by removing the material located within the closed contour of small area, which removal can be obtained by depressing or tearing said material.

Il est ensuite possible de procéder à l'enlèvement d'une grande part de la partie centrale de ladite cale par déchirement de la matière le long des lignes de prédécoupes qui sont réparties sur la surface de ladite partie centrale et qu'il est ainsi possible d'accéder aisément aux objets qui ont été préalablement disposés dans la boîte.It is then possible to remove a large part of the central part of said wedge by tearing the material along the pre-cut lines which are distributed over the surface of said central portion and that it is thus possible easy access to objects that have been previously arranged in the box.

Il en résulte, d'autre part, que les volets qui sont reliés à ladite partie centrale par des articulations parallèles à la cannelure éventuelle peuvent être aisément et précisément repliés le long des prédécoupes qui ont été réalisées au niveau desdites articulations, dans l'alignement de la périphérie de ladite partie centrale, mais que ces articulations ne sont pas exagérément fragilisées dans la mesure où l'extrémité desdites prédécoupes est éloignée de l'extrémité desdites articulations.It follows, on the other hand, that the flaps which are connected to said central portion by hinges parallel to the possible groove can be easily and accurately folded along pre-cuts that have been made at said joints, in alignment from the periphery of said central portion, but that these joints are not excessively weakened insofar as the end of said precuts is removed from the end of said joints.

Il en résulte enfin que les articulations qui ne sont pas perpendiculaires à la cannelure (ou, si le matériau est homogène, toutes les articulations) entre les volets et ladite partie centrale ne sont pas fragilisées dans la mesure où l'extrémité desdites articulations n'est pas tangente à la périphérie de la matière.It finally follows that the joints that are not perpendicular to the groove (or, if the material is homogeneous, all the joints) between the flaps and said central portion are not embrittled to the extent that the end of said joints n ' is not tangent to the periphery of matter.

Ainsi, grâce à l'invention, on dispose d'un moyen de calage permettant de parfaitement immobiliser, de façon stable, les objets à l'intérieur de la boîte, sans exercer de contrainte élevée sur lesdits objets et en produisant un emballage écologique qui peut être aisément recyclé après utilisation.Thus, thanks to the invention, there is a locking means to perfectly immobilize, stably, the objects inside the box, without exerting high stress on said objects and producing an ecological packaging that can be easily recycled after use.

Les avantages procurés par l'invention seront mieux compris au travers de la description suivante qui se réfère aux dessins annexés, qui illustrent, sans aucun caractère limitatif, un mode particulier de réalisation d'une cale selon l'invention.

  • La figure 1 est une vue en perspective d'une boîte vide utilisable pour caler des objets avec une cale selon l'invention, représentée sans son couvercle.
  • La figure 2 est une vue en perspective d'un élément de calage selon l'invention, avant utilisation.
  • La figure 3 est une vue en perspective d'une cale selon l'invention, dont les volets ont été repliés avant son introduction dans la boîte pour caler des objets.
  • La figure 4 est une vue en plan, avec arrachement partiel, d'une cale selon l'invention.
  • Les figures 5, 6, 7 et 8 sont des vues de détail et en plan de quatre zones différentes d'une cale selon l'invention.
The advantages provided by the invention will be better understood through the following description which refers to the accompanying drawings, which illustrate, without any limiting character, a particular embodiment of a shim according to the invention.
  • The figure 1 is a perspective view of an empty box used to wedge objects with a wedge according to the invention, shown without its lid.
  • The figure 2 is a perspective view of a wedging element according to the invention, before use.
  • The figure 3 is a perspective view of a wedge according to the invention, whose flaps have been folded before its introduction into the box to wedge objects.
  • The figure 4 is a plan view, partially cut away, of a shim according to the invention.
  • The Figures 5, 6 , 7 and 8 are detail and plan views of four different zones of a shim according to the invention.

On se réfère auxdits dessins pour décrire un exemple avantageux, bien que nullement limitatif, de réalisation d'une cale des objets logés dans une boîte, selon l'invention.Referring to said drawings to describe an advantageous example, although not limiting, of making a wedge of objects housed in a box, according to the invention.

La figure 1 montre un type de boîte 1 qui est composée d'un fond 1e et de quatre parois latérales 1a, 1b, 1c et 1d, ce type de boîte étant couramment utilisé pour l'expédition de colis contenant des articles divers de différentes formes qui, lorsqu'ils sont logés dans la boîte, peuvent présenter une surface supérieure très inégale.The figure 1 shows a type of box 1 which is composed of a bottom 1e and four sidewalls 1a, 1b, 1c and 1d, this type of box being commonly used for shipping parcels containing various articles of different shapes which, when they are housed in the box, may have a very uneven top surface.

Selon l'exemple illustré, le fond 1e a une forme rectangulaire, de sorte que la boîte munie de ce fond a la forme d'un parallélépipède rectangle. On voit que, selon cet exemple, les parois latérales 1a et 1c sont parallèles à la largeur de la boîte 1 et que les parois latérales 1b et 1 d sont parallèles à la longueur de la boîte 1.According to the illustrated example, the bottom 1e has a rectangular shape, so that the box provided with this bottom has the shape of a rectangular parallelepiped. We see that, according to this example, the side walls 1a and 1c are parallel to the width of the box 1 and the side walls 1b and 1d are parallel to the length of the box 1.

On souligne que le fond et les parois latérales pourraient avoir une forme différente, par exemple une forme carrée ou une forme générale carrée ou rectangulaire avec angles coupés.It is emphasized that the bottom and the side walls could have a different shape, for example a square shape or a general square or rectangular shape with cut corners.

Cette boîte 1 peut être exécutée en carton, carton ondulé, ou en tout autre matériau en feuille équivalent présentant les qualités requises de rigidité et de possibilité de pliage.This box 1 can be made of cardboard, corrugated cardboard, or any other equivalent sheet material having the required qualities of rigidity and possibility of folding.

La figure 2 montre une cale réalisée selon l'invention. Ladite cale 2 comporte une partie centrale 2k de forme et de dimensions sensiblement équivalentes à celles du fond 1e de la boîte 1, de sorte à pouvoir glisser sans jeu notable entre les parois latérales de ladite boîte lors de son enfoncement dans cette dernière. Ladite cale 2 comporte également des volets pliables 2a, 2b, 2c, 2d, 2e, 2f, 2g, 2h, 2i et 2j.The figure 2 shows a shim made according to the invention. Said shim 2 comprises a central portion 2k of shape and dimensions substantially equivalent to those of the bottom 1e of the box 1, so as to slide without significant play between the side walls of said box during its insertion into the latter. Said shim 2 also comprises foldable shutters 2a, 2b, 2c, 2d, 2e, 2f, 2g, 2h, 2i and 2j.

Ladite cale 2 peut être constituée par une feuille rigide exécutée en carton rigide et déformable, carton ondulé, ou en tout autre matériau en feuille équivalent identique ou non à celui dans lequel sont réalisées les boîtes susceptibles de recevoir un tel élément de calage.Said shim 2 may be constituted by a rigid sheet made of rigid and deformable cardboard, corrugated cardboard, or any other equivalent sheet material identical or not to that in which are made boxes likely to receive such a wedging element.

On voit les articulations des volets constituées par des rainages ou rainurages 3a, 3b, 3c, 3d, 3e, 3f, 3g, 3h, 3i et 3j qui relient lesdits volets à ladite partie centrale. On voit également des rainages 4a, 4b, 4c, 4d, 4e, 4f, 4g, 4h, 4i et 4j dont sont munis lesdits volets, parallèlement auxdites articulations. On sait que lesdits rainages 4a, 4b, 4c, 4d, 4e, 4f, 4g, 4h, 4i et 4j constituent des lignes de pliage qui permettent de réduire la surface desdits volets appliquée contre la face interne desdites quatre parois latérales au profit de la surface mise en contact avec ladite pile d'objets lorsque celle-ci n'est pas plane et a donc une superficie supérieure à celle de ladite partie centrale 2k.We see the joints of the flaps constituted by creases or grooves 3a, 3b, 3c, 3d, 3e, 3f, 3g, 3h, 3i and 3j which connect said flaps to said central portion. We also see creases 4a, 4b, 4c, 4d, 4e, 4f, 4g, 4h, 4i and 4j which are provided with said flaps, parallel to said joints. It is known that said creases 4a, 4b, 4c, 4d, 4e, 4f, 4g, 4h, 4i and 4j constitute folding lines which make it possible to reduce the area of said flaps applied against the internal face of said four lateral walls in favor of the surface brought into contact with said stack of objects when it is not flat and therefore has a surface area greater than that of said central portion 2k.

La figure 3 montre ladite cale 2 réalisée selon l'invention, constituée de la partie centrale 2k et des volets pliables 2a, 2b, 2c, 2d, 2e, 2f, 2g, 2h, 2i et 2j. Sur cette figure, lesdits volets ont été repliés vers le haut autour desdites articulations 3a, 3b, 3c, 3d, 3e, 3f, 3g, 3h, 3i et 3j.The figure 3 shows said wedge 2 made according to the invention, consisting of the central portion 2k and foldable flaps 2a, 2b, 2c, 2d, 2e, 2f, 2g, 2h, 2i and 2j. In this figure, said flaps have been folded upwardly around said joints 3a, 3b, 3c, 3d, 3e, 3f, 3g, 3h, 3i and 3j.

On voit des traits de colle 5c, 5d, 5e, 5f et 5g, déposés respectivement sur la face externe desdits volets 2c, 2d, 2e, 2f et 2g, destinée à s'appliquer contre les parois latérales de la boîte, lorsque l'élément de calage 2 a été enfoncé dans cette dernière.Adhesive lines 5c, 5d, 5e, 5f and 5g, respectively deposited on the outer face of said shutters 2c, 2d, 2e, 2f and 2g, intended to be applied against the side walls of the box, are seen when the wedging element 2 has been inserted into the latter.

On comprend que des traits ou points de colle (non représentés) ont aussi été déposés sur lesdits volets 2a, 2b, 2h, 2i et 2j.It is understood that lines or dots of glue (not shown) have also been deposited on said flaps 2a, 2b, 2h, 2i and 2j.

On sait qu'après introduction de ladite cale 2 dans la boîte 1, mise en contact de ladite cale 2 contre ladite pile d'objets logés dans ladite boîte, et déformation de ladite cale 2 pour épouser au mieux la forme de la face supérieure de ladite pile d'objets, lesdits volets se trouvent repliés et plaqués contre la face interne des parois latérales 1a, 1b, 1c et 1d de ladite boîte 1.It is known that after introduction of said wedge 2 into the box 1, bringing said wedge 2 into contact with said stack of objects housed in said box, and deformation of said wedge 2 to best fit the shape of the upper face of said stack of objects, said flaps are folded and pressed against the inner face of the side walls 1a, 1b, 1c and 1d of said box 1.

On sait aussi qu'il existe d'autres moyens que le collage pour solidariser lesdits volets avec lesdites parois latérales, tels que l'agrafage, l'emboîtement de parties de matière les unes dans les autres ou tout autre moyen permettant d'obtenir un résultat équivalent.It is also known that there are other means than gluing for securing said shutters with said side walls, such as stapling, interlocking parts of material into each other or any other means to obtain a equivalent result.

La figure 4 montre également ladite cale 2 réalisée selon l'invention, et représentée à plat, avant pliage et relevage des volets périphériques.The figure 4 also shows said wedge 2 made according to the invention, and shown flat, before folding and raising the peripheral flaps.

On voit la partie centrale 2k et les volets pliables 2a, 2b, 2c, 2d, 2e, 2f, 2g, 2h, 2i et 2j reliés à ladite partie centrale 2k par les articulations 3a, 3b, 3c, 3d, 3e, 3f, 3g, 3h, 3i et 3j.We see the central part 2k and foldable shutters 2a, 2b, 2c, 2d, 2e, 2f, 2g, 2h, 2i and 2j connected to said central part 2k by the articulations 3a, 3b, 3c, 3d, 3e, 3f, 3g, 3h, 3i and 3j.

Selon une première disposition caractéristique de l'invention, la partie centrale 2k de la feuille comporte une pluralité de rainages 6a, 6b, 6c, 6d constitués de segments de courbe ou de droite, le long desquels le matériau dans lequel est exécutée ladite feuille, est écrasé et son épaisseur réduite. Les deux extrémités ou chaque rainage 6a, 6b, 6c, 6d, aboutissent à la périphérie ou à proximité de la périphérie de ladite partie centrale 2k de ladite feuille ; d'autre part, les deux extrémités de ce rainage ou de chaque rainage aboutissent, de préférence, aux extrémités des articulations 3a, 3b, 3c, 3d, 3e, 3f, 3g, 3h, 3i et 3j entre lesdits volets pliables et ladite partie centrale 2k, ou à l'extérieur desdites articulations.According to a first characteristic arrangement of the invention, the central portion 2k of the sheet comprises a plurality of creases 6a, 6b, 6c, 6d consisting of curve or straight segments, along which the material in which said sheet is executed, is crushed and its thickness reduced. The two ends or each creasing 6a, 6b, 6c, 6d, lead to the periphery or near the periphery of said central portion 2k of said sheet; on the other hand, the two ends of this creasing or of each creasing end preferably at the ends of the joints 3a, 3b, 3c, 3d, 3e, 3f, 3g, 3h, 3i and 3j between said foldable flaps and said portion 2k, or outside said joints.

Selon l'invention, les rainages 6a, 6b, 6c, 6d, ne sont pas parallèles entre eux, ni avec les côtés de la partie centrale 2k de la feuille 2 (dans le cas d'une partie centrale de forme carrée), ou ni avec les grands côtés de la partie centrale 2k de la plaque 2, ni avec les petits côtés de ladite partie centrale (cas d'une partie centrale de forme rectangulaire).According to the invention, the creases 6a, 6b, 6c, 6d are not parallel to one another, nor to the sides of the central portion 2k of the sheet 2 (in the case of a square-shaped central portion), or neither with the long sides of the central part 2k of the plate 2, nor with the short sides of said central part (in the case of a central part of rectangular shape).

Selon une disposition avantageuse, les deux extrémités de chaque rainage 6a, 6b, 6c, 6d, aboutissent sur deux côtés adjacents, respectivement 3j-3i-3h 3g-3f ; 3g-3f 3e-3d-3c ; 3e-3d-3c 3b-3a ; 3b-3a 3j-3i-3h, de la partie centrale 2k de la cale 2.According to an advantageous arrangement, the two ends of each groove 6a, 6b, 6c, 6d, end on two adjacent sides, respectively 3j-3i-3h 3g-3f; 3g-3f 3e-3d-3c; 3e-3d-3c 3b-3a; 3b-3a 3j-3i-3h, of the central portion 2k of the hold 2.

Les deux extrémités de chaque rainage 6a, 6b, 6c, 6d, aboutissent aux extrémités des articulations 3a, 3b, 3c, 3d, 3e, 3f, 3g, 3h, 3i, 3j, entre les volets pliables et la partie centrale, ou à l'extérieur desdites articulations.The two ends of each groove 6a, 6b, 6c, 6d, end at the ends of the joints 3a, 3b, 3c, 3d, 3e, 3f, 3g, 3h, 3i, 3j, between the foldable flaps and the central part, or to outside said joints.

Ledit rainage 6a a une extrémité sensiblement confondue avec l'une des extrémités desdites articulations 3d et 3e desdits volets 2d et 2e et son autre extrémité aboutit entre les extrémités desdites articulations 3f et 3g desdits volets 2f et 2g et à distance des extrémités de deux articulations successives. De même, ledit rainage 6b a une extrémité qui aboutit entre les extrémités desdites articulations 3f et 3g desdits volets 2f et 2g et à distance des extrémités desdites articulations successives et son autre extrémité est sensiblement confondue avec l'une des extrémités desdites articulations 3h et 3i desdits volets 2h et 2i, ledit rainage 6c a une extrémité sensiblement confondue avec l'une des extrémités desdites articulations 3i et 3j desdits volets 2i et 2j et à distance des extrémités desdites articulations successives et son autre extrémité aboutit entre les extrémités desdites articulations 3a et 3b desdits volets 2a et 2b, et ledit rainage 6d a une extrémité qui aboutit entre les extrémités desdites articulations 3a et 3b desdits volets 2a et 2b et à distance des extrémités desdites articulations successives et son autre extrémité sensiblement confondue avec l'une des extrémités desdites articulations 3c et 3d desdits volets 2c et 2d.Said creasing 6a has an end substantially coincident with one of the ends of said joints 3d and 3e of said shutters 2d and 2e and its other end terminates between the ends of said joints 3f and 3g of said shutters 2f and 2g and at a distance from the ends of two joints successive. Similarly, said creasing 6b has an end which terminates between the ends of said joints 3f and 3g of said flaps 2f and 2g and at a distance from the ends of said successive joints and its other end is substantially coincidental with one of the ends of said joints 3h and 3i of said flaps 2h and 2i, said creasing 6c has an end substantially coincident with one of the ends of said hinges 3i and 3j of said flaps 2i and 2j and at a distance from the ends of said successive hinges and its other end terminates between the ends of said hinges 3a and 3b of said flaps 2a and 2b, and said creasing 6d has an end which terminates between the ends of said hinges 3a and 3b of said flaps 2a and 2b and at a distance from the ends of said successive hinges and its other end substantially coincides with one of said ends. joints 3c and 3d of said flaps 2c and 2d.

On comprend que lesdits rainages 6a, 6b, 6c et 6d constituent des lignes de pliage pour ladite partie centrale 2k, qui facilitent la déformation de ladite cale 2 qui peut prendre une grande variété de conformations, pour épouser au mieux la forme de la face supérieure de ladite pile d'objets, en particulier lorsque ladite cale est fabriquée dans un matériau résistant et rigide.It is understood that said creases 6a, 6b, 6c and 6d constitute folding lines for said central portion 2k, which facilitate the deformation of said wedge 2 which can take a a wide variety of conformations, to best fit the shape of the upper face of said stack of objects, especially when said wedge is made of a strong and rigid material.

Comme indiqué précédemment, la partie centrale 2k de la feuille pourrait comporter des rainurages de formes diverses adaptées à des articles spécifiques appelés à être expédiés et transportés dans les boîtes.As indicated above, the central portion 2k of the sheet could comprise grooves of various shapes adapted to specific articles to be shipped and transported in the boxes.

On voit également, sur la figure 4, la prédécoupe 7, en forme d'anneau non circulaire. Cette prédécoupe 7 est constituée d'une succession de segments droits ou courbes le long desquels la matière est découpée sur tout ou partie de son épaisseur. Ladite prédécoupe 7 délimite un contour fermé de petite superficie. On comprend que la partie de matière incluse dans ce contour fermé est rattachée à ladite partie centrale 2k mais peut être aisément détachée de ladite partie centrale 2k par enfoncement ou arrachement de ladite matière.We also see, on the figure 4 , the pre-cut 7, in the form of a non-circular ring. This pre-cut 7 consists of a succession of straight or curved segments along which the material is cut over all or part of its thickness. Said precut 7 defines a closed contour of small area. It is understood that the portion of material included in this closed contour is attached to said central portion 2k but can be easily detached from said central portion 2k by depressing or tearing said material.

On voit aussi, sur la figure 4, les ensembles de prédécoupes 8a, 8b, 8c et 8d. On comprend que, lorsque la partie de matière incluse dans le contour fermé délimité par ladite prédécoupe 7 a été détachée, il est possible d'ouvrir ladite partie centrale 2k, en exerçant une traction à partir de l'ouverture résultant de l'arrachement de la portion de matière délimitée par la prédécoupe 7, de sorte à détacher et à soulever les langues de matière 14a, 14b, comprises entre les couples de découpe 8a, 8b et 8c, 8d, et d'ouvrir ainsi une grande part de la partie centrale 2k, on a alors un accès aisé aux articles logés préalablement dans la boîte.We also see, on the figure 4 , pre-cut sets 8a, 8b, 8c and 8d. It will be understood that when the portion of material included in the closed contour delimited by said precut 7 has been detached, it is possible to open said central portion 2k, by exerting a pull from the opening resulting from the tearing out. the portion of material defined by the precut 7, so as to detach and lift the material languages 14a, 14b, between the cutting torques 8a, 8b and 8c, 8d, and thereby open a large part of the part central 2k, then we have easy access to items previously housed in the box.

On voit également, sur la figure 4, les zones A, B, C et D. Ces zones de ladite cale 2 sont représentées de façon plus détaillée respectivement sur les figures 5, 6, 7 et 8.We also see, on the figure 4 zones A, B, C and D. These zones of said wedge 2 are shown in greater detail respectively on the Figures 5, 6 , 7 and 8 .

On voit enfin sur la figure 4 la zone E. Dans le mode de représentation particulier illustré par la figure 4, le matériau utilisé pour la réalisation de ladite cale 2 est du carton ondulé ou un autre matériau intégrant une feuille ondulée. Ladite zone E illustre une vue en "écorché" de ladite cale 2 qui montre la cannelure dudit matériau.We finally see on the figure 4 zone E. In the particular representation mode illustrated by the figure 4 , the material used for producing said wedge 2 is corrugated cardboard or other material incorporating a corrugated sheet. Said zone E illustrates a "cutaway" view of said wedge 2 which shows the groove of said material.

On voit que, dans le mode de représentation particulier de la figure 4, les articulations 3a, 3b, 3f et 3g sont parallèles aux cannelures 15 de la feuille de carton ondulé, alors que les articulations 3c, 3d, 3e, 3h, 3i et 3j sont perpendiculaires auxdites cannelures 15.We see that, in the particular mode of representation of the figure 4 , the joints 3a, 3b, 3f and 3g are parallel to the corrugations 15 of the corrugated sheet, while the joints 3c, 3d, 3e, 3h, 3i and 3j are perpendicular to said flutes 15.

La figure 5 montre de façon détaillée la zone A de ladite cale 2 réalisée selon l'invention. On voit, sur cette figure, la partie centrale 2k et le volet pliable 2f. On voit également sur la figure 5 l'articulation 3f qui relie ledit volet 2f à ladite partie centrale 2k.The figure 5 shows in detail the zone A of said wedge 2 made according to the invention. This figure shows the central portion 2k and the foldable flap 2f. We also see on the figure 5 the hinge 3f which connects said flap 2f to said central portion 2k.

On sait que ladite articulation 3f est parallèle à la cannelure du matériau utilisé pour la réalisation de ladite cale 2, lorsqu'il s'agit de carton ondulé, et on voit également sur la figure 5 que ladite articulation 3f est constituée de la superposition d'un rainage 9f et d'une prédécoupe 10f, elle-même constituée d'une succession de segments droits le long desquels la matière est découpée sur tout ou partie de son épaisseur.It is known that said articulation 3f is parallel to the groove of the material used for producing said wedge 2, when it is corrugated cardboard, and we also see on the figure 5 said articulation 3f consists of the superposition of a creasing 9f and a precut 10f, itself consisting of a succession of straight segments along which the material is cut over all or part of its thickness.

On comprend que les articulations 3a, 3b et 3g, parallèles à la cannelure du matériau utilisé pour la réalisation de ladite cale 2, sont, de même, constituées de la superposition d'un rainage et d'une prédécoupe.It will be understood that the joints 3a, 3b and 3g, parallel to the groove of the material used for producing said wedge 2, are likewise constituted by the superposition of a crease and a precut.

La figure 6 montre de façon détaillée la zone B de ladite cale 2 réalisée selon l'invention. On voit sur la figure 6 la partie centrale 2k et le volet pliable 2j. On voit également sur la figure 6, l'articulation 3j qui relie ledit volet 2j à ladite partie centrale 2k. On voit aussi, sur la figure 6, le volet pliable 2a et l'articulation 3a qui relie ledit volet 2a à ladite partie centrale 2k.The figure 6 shows in detail the zone B of said wedge 2 made according to the invention. We see on the figure 6 the central part 2k and the foldable flap 2j. We also see on the figure 6 the hinge 3j which connects said flap 2j to said central portion 2k. We also see, on the figure 6 , the foldable flap 2a and the hinge 3a which connects said flap 2a to said central portion 2k.

On voit aussi, sur la figure 6, le point 11ja qui correspond à l'un des angles du rectangle formé par ladite partie centrale 2k dans le mode de représentation particulier illustré. On voit que ledit point 11ja est situé à l'intersection des droites alignées sur lesdites articulations 3j et 3a.We also see, on the figure 6 point 11ja which corresponds to one of the angles of the rectangle formed by said central portion 2k in the particular embodiment shown. It can be seen that said point 11ja is located at the intersection of the lines aligned on said joints 3j and 3a.

Il en va de même en ce qui concerne les angles du rectangle situés respectivement à l'intersection des droites alignées sur lesdites articulations 3b et 3c, 3e et 3f, et 3g et 3h.The same applies to the angles of the rectangle located respectively at the intersection of the lines aligned on said joints 3b and 3c, 3e and 3f, and 3g and 3h.

On voit encore, sur la figure 6, le point 3ja qui correspond à l'une des deux extrémités de l'articulation 3j. On sait d'autre part que ladite articulation 3j est perpendiculaire à la cannelure du matériau utilisé pour la réalisation de ladite cale 2.We still see, on the figure 6 , the point 3ja which corresponds to one of the two ends of the articulation 3j. It is known on the other hand that said hinge 3j is perpendicular to the groove of the material used for producing said shim 2.

On voit également, sur la figure 6, le segment de courbe 13ja qui appartient à la périphérie de ladite partie centrale 2k. Ledit segment 13ja a pour caractéristique d'être tangent à la périphérie dudit volet pliable 2j au point 3ja. On comprend que cette caractéristique permet d'éviter de fragiliser ladite articulation 3j par la création d'une amorce de rupture au point 3ja.We also see, on the figure 6 , the curve segment 13ja which belongs to the periphery of said central portion 2k. Said segment 13ja has the characteristic of being tangent to the periphery of said folding flap 2j at point 3ja. We understand that this characteristic makes it possible to avoid weakening said articulation 3j by creating a rupture primer at the point 3ja.

On comprend que d'autres segments de courbe similaires au segment 13ja sont, de même, tangents à la périphérie desdits volets pliables 2c, 2e et 2h.It is understood that other curve segments similar to the segment 13ja are likewise tangent to the periphery of said foldable flaps 2c, 2e and 2h.

On voit aussi, sur la figure 6, que ladite articulation 3a est constituée par la superposition d'un rainage 9a et d'une prédécoupe 10a.We also see, on the figure 6 , that said hinge 3a is constituted by the superposition of a creasing 9a and a precut 10a.

On voit encore, sur la figure 6, le point 3aj qui correspond à l'une des deux extrémités de l'articulation 3a.We still see, on the figure 6 point 3aj which corresponds to one of the two ends of the articulation 3a.

On rappelle, d'autre part, que, selon un mode d'exécution, ladite articulation 3a est parallèle à la cannelure du matériau utilisé pour la réalisation de ladite cale 2.It is recalled, on the other hand, that, according to one embodiment, said hinge 3a is parallel to the groove of the material used for producing said shim 2.

On voit également, sur la figure 6, le segment de droite 12aj qui appartient à la périphérie de ladite partie centrale 2k. Ledit segment 12aj a pour caractéristique d'être tangent à ladite articulation 3a au point 3aj. On comprend que cette caractéristique permet de favoriser le pliage dudit volet 2a le long dudit rainage 9a et de ladite prédécoupe 10a, à partir du point 3aj.We also see, on the figure 6 , the right segment 12aj which belongs to the periphery of said central portion 2k. Said segment 12aj has the characteristic of being tangent to said articulation 3a at point 3aj. It is understood that this characteristic makes it possible to favor the folding of said shutter 2a along said creasing 9a and said precut 10a, starting from point 3aj.

On comprend que d'autres segments de droite similaires au segment 12aj sont, de même, tangents auxdites articulations 3b, 3f et 3g.It is understood that other line segments similar to segment 12aj are likewise tangent to said joints 3b, 3f and 3g.

La figure 7 montre, de façon détaillée, la zone C de ladite cale 2 réalisée selon un autre mode d'exécution de l'invention. On voit, sur cette figure, la partie centrale 2k et le volet pliable 2a. On voit également, sur la figure 7, l'articulation 3a, constituée de la superposition du rainage 9a et de la prédécoupe 10a, qui relie ledit volet 2a à ladite partie centrale 2k. On voit aussi, sur la figure 7, le volet pliable 2b et l'articulation 3b constituée de la superposition du rainage 9b et de la prédécoupe 10b, qui relie ledit volet 2b à ladite partie centrale 2k.The figure 7 shows, in detail, the zone C of said wedge 2 made according to another embodiment of the invention. This figure shows the central portion 2k and the foldable flap 2a. We also see, on the figure 7 , the articulation 3a, consisting of the superposition of the creasing 9a and the precut 10a, which connects said flap 2a to said central portion 2k. We also see, on the figure 7 , the foldable flap 2b and the hinge 3b consisting of the superposition of the creasing 9b and the precut 10b, which connects said flap 2b to said central portion 2k.

On rappelle, d'autre part, que lesdites articulations 3a et 3b sont parallèles à la cannelure du matériau utilisé pour la réalisation de ladite cale 2.It is recalled, on the other hand, that said joints 3a and 3b are parallel to the groove of the material used for producing said shim 2.

On voit également, sur la figure 7, les rainages 6c et 6d réalisés sur ladite partie centrale 2k et on voit que les extrémités desdits rainages 6c et 6d sont situées dans la même zone que l'extrémité 3ab de l'articulation 3a et que l'extrémité 3ba de l'articulation 3b mais à l'extérieur desdites articulations.We also see, on the figure 7 , creases 6c and 6d made on said central portion 2k and it can be seen that the ends of said creases 6c and 6d are located in the same zone as the end 3ab of the hinge 3a and that the end 3ba of the hinge 3b but outside said joints.

On voit aussi, sur la figure 7, le segment de droite 12ab qui appartient à la périphérie de ladite partie centrale 2k. Ledit segment 12ab a pour caractéristique d'être tangent à ladite articulation 3a, au point 3ab, et d'être également tangent à ladite articulation 3b, au point 3ba. On comprend que cette caractéristique permet de favoriser le pliage dudit volet 2a le long dudit rainage 9a et de ladite prédécoupe 10a, à partir du point 3ab ainsi que le pliage dudit volet 2b le long dudit rainage 9b et de ladite prédécoupe 10b, à partir du point 3ba.We also see, on the figure 7 , the line segment 12ab which belongs to the periphery of said central portion 2k. Said segment 12ab has the characteristic of being tangent to said articulation 3a, at point 3ab, and of being also tangent to said articulation 3b, at point 3ba. It is understood that this characteristic makes it possible to favor the folding of said shutter 2a along said creasing 9a and of said precut 10a, starting from the point 3ab as well as the folding of said shutter 2b along said creasing 9b and said precut 10b, starting from point 3ba.

On comprend qu'un autre segment de droite similaire au segment 12ab est, de même, tangent aux articulations 3 f et 3g.It will be understood that another line segment similar to segment 12ab is likewise tangent to joints 3f and 3g.

La figure 8 montre, de façon détaillée, la zone D de ladite cale 2 réalisée selon un autre exemple d'exécution de l'invention. On voit, sur cette figure, la partie centrale 2k et le volet pliable 2h. On voit également, sur la figure 8, l'articulation 3h, qui relie ledit volet 2h à ladite partie centrale 2k. On voit aussi sur la figure 8 le volet pliable 2i et l'articulation 3i, qui relie ledit volet 2i à ladite partie centrale 2k.The figure 8 shows, in detail, the zone D of said shim 2 made according to another embodiment of the invention. This figure shows the central portion 2k and the foldable flap 2h. We also see, on the figure 8 the hinge 3h, which connects said flap 2h to said central portion 2k. We also see on the figure 8 the foldable flap 2i and the hinge 3i, which connects said flap 2i to said central portion 2k.

On rappelle, d'autre part, que lesdites articulations 3h et 3i sont perpendiculaires à la cannelure du matériau utilisé pour la réalisation de ladite cale 2.It is recalled, on the other hand, that said joints 3h and 3i are perpendicular to the groove of the material used for producing said wedge 2.

On voit également, sur la figure 8, le rainage 6b réalisé sur ladite partie centrale 2k et on voit que l'extrémité dudit rainage 6b est située dans la même zone que l'extrémité 3hi de l'articulation 3h et que l'extrémité 3ih de l'articulation 3i, mais à l'extérieur desdites articulations.We also see, on the figure 8 , the creasing 6b made on said central portion 2k and we see that the end of said creasing 6b is located in the same area as the end 3hi of the hinge 3h and the end 3ih of the hinge 3i, but to outside said joints.

On voit aussi, sur la figure 8, le segment de courbe 13hi qui appartient à la périphérie de ladite partie centrale 2k. Ledit segment 13hi a pour caractéristique d'être tangent à la périphérie dudit volet pliable 2h au point 3hi et d'être également tangent à la périphérie dudit volet pliable 2i au point 3ih. On comprend que cette caractéristique permet d'éviter de fragiliser lesdites articulations 3h et 3i par la création d'une amorce de rupture respectivement aux points 3hi et 3ih.We also see, on the figure 8 , the curve segment 13hi which belongs to the periphery of said central portion 2k. Said segment 13hi has the characteristic of being tangent to the periphery of said folding flap 2h at point 3hi and also tangent to the periphery of said foldable flap 2i at point 3ih. It is understood that this characteristic makes it possible to avoid weakening said joints 3h and 3i by creating a breaking primer respectively at the points 3hi and 3ih.

On comprend que d'autres segments de courbe similaires au segment 13hi sont, de même, tangents à la périphérie desdits volets pliables 2i et 2j, 2c et 2d et 2d et 2e.It will be understood that other curve segments similar to the segment 13hi are likewise tangent to the periphery of said foldable flaps 2i and 2j, 2c and 2d and 2d and 2e.

Claims (9)

  1. Wedge (2) intended for wedging objects in a box (1), comprising a base (1e) and at least four lateral faces, said wedge (2) being formed by a sheet of rigid, resistant and foldable material, for example made of cardboard, corrugated cardboard or an equivalent sheet of material, and comprising a central part (2k) of polygonal, square or rectangular or relatively square or rectangular shape, having dimensions that are substantially equivalent to those of the base (1e) of said box, said sheet comprising, on at least two of its sides, at least one or more foldable flaps (2a, 2b, 2c, 2d, 2e, 2h, 2i and 2j) attached to said central part (2k) by means of folding lines or articulations (3a, 3b, 3c, 3d, 3e, 3f, 3g, 3h, 3i, 3j) and intended to allow the wedge to be fixed to the literal walls of the box, after said wedge has been wedged into said box, characterised in that the central part (2k) of the wedging sheet (2) is provided with a plurality of creases (6a, 6b, 6c and 6d) formed by curved or straight segments, along which the material is compressed and its thickness is reduced, said creases (6a, 6b, 6c, 6d) forming folding lines inside said central part (2k) that facilitate the deformation of said wedge (2) in order to better conform to the shape of the upper surface of the stack of objects housed inside the box (1), said creases terminating at the periphery or in the vicinity of the periphery of said central part (2k) of the wedging sheet (2), they are not parallel to the sides of said central part (2k) and are not all parallel to each other.
  2. Wedge according to claim 1, characterised in that the ends of the creases (6a, 6b, 6c, 6d) terminate on two adjacent sides of the central part (2k) of said wedge (2) provided with flaps (2a-2b and 2j-2i-2h; 2j-2i-2h and 2g-2f; 2g-2f and 2e-2d-2c; 2e-2d-2c and 2b-2a).
  3. Wedge according to any one of claims 1 to 2, characterised in that the two ends of each crease (6a, 6b, 6c, 6d) terminate at the ends of the articulations (3a, 3b, 3c, 3d, 3e, 3f, 3g, 3h, 3i, 3j) between said foldable flaps and said central part or at the end of said articulations.
  4. Wedge according to any one of claims 2 to 3, characterised in that one of the ends of the creases (6a, 6b, 6c, 6d) coincides, or substantially coincides, with one of the ends of said articulations (3a, 3e; 3f, 3g; 3i, 3j; 3c, 3d) of said flaps (2d, 2e; 2h, 2i; 2i, 2j; 2c, 2d), whereas their other end terminates between the ends of the articulations (3f, 3g; 3g, 3f; 3a, 3b; 3a, 3b) of the flaps (2f, 2g; 2f, 2g; 2a, 2b; 2a, 2b) and at a distance from the ends of said articulations.
  5. Wedge according to any one of claims 1 to 4, wherein the wedging sheet (2) is made of corrugated cardboard or of any other material comprising parallel grooves (15), characterised in that the articulations (3a, 3b, 3f, 3g) that are parallel to said grooves, between the various flaps (2a, 2b, 2f, 2g) and the central part (2k), are formed by superposing a crease (9a, 9b, 9f, ... ) and, on at least part of the articulation, a pre-cut (10a, 10b, 10f, ...), without said pre-cuts reaching the end of said articulations.
  6. Wedge according to any one of claims 1 to 5, wherein the sheet (2) is made of corrugated cardboard or of any other material comprising parallel grooves (15), characterised in that the articulations (3a, 3b, 3f, 3g) that are parallel to said grooves, between the various flaps (2a, 2b, 2f, 2g) and the central part (2k), are not contiguous but are preceded and succeeded by straight or curved segments (12aj, 12ab) belonging to the periphery of said central part and being substantially tangent to said articulations.
  7. Wedge according to any one of claims 1 to 6, wherein the sheet (2) is made of corrugated cardboard or of any other material comprising parallel grooves (15) or of a homogenous material, characterised in that the articulations (3c, 3d, 3e, 3h, 3i, 3j) that are not parallel to said grooves (15) or, if the material is homogenous, all of the articulations between the various flaps (2c, 2d, 2e, 2h, 2i, 2j) and the central part (2k), are not contiguous but are preceded and followed by curved segments (13ja, 13hi), the ends of which are substantially tangent to the periphery of said flaps at the point of intersection with said articulations.
  8. Wedge according to any one of claims 1 to 7, characterised in that the central part (2k) comprises a pre-cut (7) formed by a succession of curved or straight sections, along which the material is cut on all or part of its thickness, said pre-cut (7) demarcating a closed outline with a small surface area.
  9. Wedge according to claim 8, characterised in that the central part (2k) further comprises pre-cuts (8a, 8b, 8c, 8d) distributed over the surface of said central part from the closed outline with a small surface area, said pre-cuts (8a, 8b, 8c, 8d) demarcating tearing tabs (14a, 14b) of said central part.
EP14709724.0A 2013-02-12 2014-02-06 Wedge for immobilizing objects in a box having a square or rectangular cross-section Active EP2956371B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1351177A FR3001955B1 (en) 2013-02-12 2013-02-12 CAGE FOR IMMOBILIZING OBJECTS IN A SQUARE OR RECTANGULAR BOX.
PCT/FR2014/050228 WO2014125193A1 (en) 2013-02-12 2014-02-06 Wedge for immobilizing objects in a box having a square or rectangular cross-section

Publications (2)

Publication Number Publication Date
EP2956371A1 EP2956371A1 (en) 2015-12-23
EP2956371B1 true EP2956371B1 (en) 2016-10-05

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP14709724.0A Active EP2956371B1 (en) 2013-02-12 2014-02-06 Wedge for immobilizing objects in a box having a square or rectangular cross-section

Country Status (11)

Country Link
US (2) US9555945B2 (en)
EP (1) EP2956371B1 (en)
JP (1) JP6275167B2 (en)
CN (1) CN105073588B (en)
AU (1) AU2014217712B2 (en)
BR (1) BR112015019267A2 (en)
CA (1) CA2898983C (en)
ES (1) ES2609254T3 (en)
FR (1) FR3001955B1 (en)
MX (1) MX366747B (en)
WO (1) WO2014125193A1 (en)

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Also Published As

Publication number Publication date
EP2956371A1 (en) 2015-12-23
US10005606B2 (en) 2018-06-26
US9555945B2 (en) 2017-01-31
CN105073588B (en) 2018-10-19
FR3001955B1 (en) 2015-10-30
FR3001955A1 (en) 2014-08-15
AU2014217712A1 (en) 2015-10-08
WO2014125193A1 (en) 2014-08-21
AU2014217712B2 (en) 2018-02-22
JP2016509980A (en) 2016-04-04
JP6275167B2 (en) 2018-02-07
CA2898983C (en) 2021-01-12
BR112015019267A2 (en) 2017-07-18
CA2898983A1 (en) 2014-08-21
CN105073588A (en) 2015-11-18
US20150353257A1 (en) 2015-12-10
ES2609254T3 (en) 2017-04-19
MX366747B (en) 2019-07-23
MX2015010200A (en) 2016-03-31
US20170158405A1 (en) 2017-06-08

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