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EP0944531B1 - Case made of sheet material with centring tabs and blank for producing same - Google Patents

Case made of sheet material with centring tabs and blank for producing same Download PDF

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Publication number
EP0944531B1
EP0944531B1 EP97953003A EP97953003A EP0944531B1 EP 0944531 B1 EP0944531 B1 EP 0944531B1 EP 97953003 A EP97953003 A EP 97953003A EP 97953003 A EP97953003 A EP 97953003A EP 0944531 B1 EP0944531 B1 EP 0944531B1
Authority
EP
European Patent Office
Prior art keywords
flaps
box
tabs
blank
flap
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP97953003A
Other languages
German (de)
French (fr)
Other versions
EP0944531A1 (en
Inventor
Jean-Yves Bacques
Gérard Mathieu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Otor SA
Original Assignee
Otor SA
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Filing date
Publication date
Application filed by Otor SA filed Critical Otor SA
Publication of EP0944531A1 publication Critical patent/EP0944531A1/en
Application granted granted Critical
Publication of EP0944531B1 publication Critical patent/EP0944531B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • 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
    • B65D5/001—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 stackable
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S229/00—Envelopes, wrappers, and paperboard boxes
    • Y10S229/915—Stacking feature

Definitions

  • the present invention relates to a case of corrugated sheet material or equivalent, of type having a polygonal section, comprising lateral faces, an upper face forming cover and a lower face forming the bottom of the box.
  • the invention finds a particularly important, although not exclusive, application in the field of stackable boxes on pallets, the lower boxes of which tend to be crushed in the event of a stack of too large a size.
  • the invention is also applicable to polygonal boxes with more than four sides which can present, when they are not completely filled, deformations in the event of lateral stress as well as a lower resistance to compression.
  • Document FR-A-2 311 717 describes a package whose lid formed by flaps has flaps in a shape complementary to that of notches practiced in the bottom flaps to avoid sliding of two boxes placed one on top of the other.
  • the present invention aims to provide a box and a blank responding better than those previously known to the requirements of practice especially in this that it offers centering of the boxes one on the other making it possible to stack the boxes one on top of the other, directly above one of the other, which has never been achieved in the past, in an industrial and repetitive way.
  • the invention proposes in particular a box of material made of corrugated cardboard sheet or equivalent, having a polygonal section, comprising lateral faces, an upper face forming a cover and a lower face forming the bottom of the box, said upper face.
  • protruding parts projecting from the outer surface of the upper face, and said bottom comprising recessed parts, of shape complementary to the protruding parts and arranged to fit together with said protruding parts of a box arranged below, characterized in that the protruding parts are formed by at least two tabs respectively located on two opposite sides of said cover, cut on one side either in a flap of the upper face, the latter then being formed by the superposition of flaps, or in the side face adjacent to said upper face, and articulated on the other side parallel and substantially coincident with the junction line between said upper face and the adjacent side face, said tabs being respectively folded down on the outer surface of said face to which they are glued, and in that the hollow parts are formed by at least two recesses or by parts of indentations corresponding to said tongues, produced in said lower face, of overall shapes complementary to the shapes of the tongues.
  • the invention also provides a blank allowing to obtain a case as described above.
  • the blank comprises a series of at least four parts main interconnected by lines of junction, each main flap being provided on the and on the other with an upper flap and a flap lower respectively located on both sides of said main component, a first main component being suitable for forming the cover of the box, and a second main shutter, not adjacent to the first main component, being suitable for forming the bottom of the body, and in that the tabs are cut in the lower and upper flaps of said first main flap, the recesses being made in the second main component.
  • the blank has side flaps connected to each other by means of first parallel fold lines, a first set of flaps connected to one side of said side flaps by second fold lines orthogonal to said first fold lines, suitable for forming the bottom of the box, and a second set of flaps connected to the other side of said side flaps by third fold lines orthogonal to said first fold lines, suitable for forming the cover of the box, said first and second sets being formed of two so-called external side flaps interposed with two so-called internal side flaps, characterized in that said internal flaps of the cover each have a tongue cut out on one side in said flap, and connected on the other side to the adjacent flap by a line of folding substantially coincident with the third fold line of said flap, said external flaps being arranged to be glued to the portions of internal flaps adjacent to the tabs and said tabs to respectively cover said external flaps to which they are suitable for being glued, and in that the lateral sides of the outer flaps of the bottom have notches of shape complementary to that of a half-
  • the peripheral edges of the external flaps opposite the third lines of folding respectively include two half-slots located on either side of said external flaps, a determined distance from the lateral edges of said corresponding flaps.
  • the blank or the set of blanks comprises two slots made in the flap intended to form the cover of the box.
  • each end of slot or half-slot is extended by a breakable line or break in said cover over a determined distance, said breakable line being angled toward the corner angle of the junction line with the lateral face adjacent to and adjacent to a tongue and being arranged to be located towards the center of the cover and beyond the corresponding edge of said tongue and bonding points of the cover, when said body is formed.
  • each tab has a isosceles rectangular or trapezoidal shape.
  • the tabs are also cut into providing a recess around said tongues peripheral.
  • FIG. 1 shows a box 1 of corrugated cardboard, for example double sided or double double, thick 3 mm or 5 mm, in the shape of a parallelepiped, comprising four rectangular lateral faces 2, 3, 4 and 5, namely two large faces 2 and 4 facing each other and two small end faces 3 and 5 in vis-a-vis.
  • Box 1 also includes an upper face 6 forming the cover of the box and one side lower 7 forming the bottom of the box.
  • the cover includes two rectangular tabs 8 and 9, of width greater than 3 cm, for example of 4 cm, and longer than 2 cm, for example 4 cm in length, thickness equal to that of cardboard, and respectively cut in the faces lateral 3 and 5 adjacent to the upper face 6, on three sides of said tabs, which are folded down and glued to the outer face 10 of the upper side, for example with glue says "Hot Melt” in Anglo-Saxon language.
  • the tongue is hinged on its fourth side in parallel and substantially combined with junction line 11, between face upper and lateral face, around a double fold line 12 of which at least one line is offset towards the tongue relative to the line of junction 11.
  • the tongues 8 and 9 are for example centered with respect to the corresponding lateral face. They can also be arranged symmetrically by relative to the center C of the upper face 6.
  • FIG. 2 shows the blank 15 having allowed to make the box 1 of Figure 1.
  • the blank 15 comprises a series of four components main 7, 4, 6 and 2 terminated by a tongue 16 of glue extending over the entire length of the shutters.
  • the shutters are interconnected by lines of folding or joining 17.
  • the series of shutters is bordered on one side by a first set 18, upper flaps, and the other side by a second set 19, of flaps lower.
  • each main component comprises an upper flap and a lower flap.
  • Sides 2 and 4 suitable for forming faces sides of the body each include a flap upper 18 'and lower flap 19', rectangular, identical to each other.
  • the flaps 18 'and 19' are arranged to form the internal part of the side walls 3 and 5 of the box 1, for example by being joined at the level of their ends when the body is made.
  • the flap 6 intended to form the cover of the body is connected by the fold lines 11, with two rectangular flaps 18 "and 19" which include rectangular tabs 8 and 9.
  • Each tab is cut on three sides 20 in the corresponding flap and is connected to flap 6 on the fourth side 21 by the double line of folding 12.
  • This recess allows the retention of the tongues 8 and 9 horizontally, in the extension of shutter 6 when folding the 18 "and 19" flaps around a mandrel, during the formation of the body.
  • the flap 7 is connected as for it via fold lines 24 perpendicular to lines 17, at two rectangular flaps 18 ′′′ and 19 ′′′ of dimensions equal to those of the 18 "and 19" flaps, but without tongue, the transverse dimension of the flaps 18 ", 18" ', 19 “and 19”' being such that said flaps are joined two by two along line 25 when box 1 is formed (see figure 1).
  • Part 7 includes the two recesses rectangular 13 and 14, for example practiced in only part of the thickness of the cardboard if it is a double double, the end 26 of the side of the flap overlaps fold line 24, which allows, once the box is formed, to spare 27 more overcut thickness at plumb with line 12, allowing better embedding with the larger projection 28 due offset from double line 12.
  • Figure 1A shows schematically in section the embedding of the projection 28 'of the body 1' in the recess 27 in the body 1.
  • FIGs 3, 4A and 4B show a tray open 30, parallelepiped, formed by a blank 31 of a type known in itself (cf. FIG. 4A), comprising a central flap 32, provided on each side with flaps, namely two first rectangular flaps identical 33 vis-à-vis connected to the central flap 32 by fold lines 34 and two second flaps rectangular 35 connected to flap 32 by lines fold 36 perpendicular to the fold lines 34, and themselves comprising two third flaps identical 37, respectively connected to each side lateral, intended to form by bonding with rectangular flaps 33 two of the side walls in opposite the tray, the other two walls being formed by the flaps 35.
  • a central flap 32 provided on each side with flaps, namely two first rectangular flaps identical 33 vis-à-vis connected to the central flap 32 by fold lines 34 and two second flaps rectangular 35 connected to flap 32 by lines fold 36 perpendicular to the fold lines 34, and themselves comprising two third flaps identical 37, respectively connected to each side lateral, intended to form by bonding with rectangular flaps 33 two of
  • the central flap 32 has four hollow parts 38, for example identical, centered relative to the side walls of the body, rectangular and one side 39 of which is substantially confused with a central part of the lines of folding 34 and 36.
  • FIG. 4B shows the blank 40 to constitute the cover of the box obtained with the tray 30 in Figure 3.
  • the blank 40 has a central flap 41 rectangular connected by fold lines perpendicular two by two 42, with flaps rectangular 43.
  • Each flap 43 has a tongue 44 along the invention, for example rectangular, cut out of three sides in the flap, leaving a recess peripheral 45, and connected on the side of the central flap 41 central flap audit by a double fold line 46, or by a simple fold line offset to the inside of the tongue.
  • the tongues 44 have a shape complementary to that of the recesses 38 and are therefore arranged for be turned over and glued, for example with "Hot Melt” glue in Anglo-Saxon language, on the face flap 41.
  • the remaining parts of the flaps 43 are they glued to the outer faces of the flaps 33 and 35 from tray 30.
  • FIG. 5 shows a blank 50 comprising a series of four side flaps, namely two large rectangular shutters 51 and 52 interspersed with two small rectangular flaps 53 and 54.
  • the series of shutters is finished on one side, by a tongue 55 suitable for being fixed on the periphery of the end flap 51.
  • the flaps are connected between them by first parallel fold lines 56.
  • the blank includes a first set 57 of flaps located on one side of the flaps and intended to form the bottom of the box, and a second set 58 of flaps located on the other side of the flaps and intended to form the cover of the box.
  • the first set 57 comprises four substantially rectangular flaps connected to the lateral sides of the four flaps by lines of folding 59 aligned, perpendicular to the first fold lines, i.e. two large flaps 60 identical, called external connected to the large shutters 51 and 52 and two small 61 identical flaps called internal, connected to small flaps 53 and 54.
  • the two large flaps 60 have a width, transverse, equal or substantially equal to half the width of the closed body.
  • Each large external flap 60 has two sides side finished on the corner side with the edge parallel device with the fold line 59, by a notch 62 of rectangular shape complementary to that of a half tab which goes be described below.
  • the small internal 61 flaps are identical and rectangular.
  • the second set 58 of flaps is connected to the four main strands by third lines of folding 63 perpendicular to the first lines of folding 56.
  • Each flap external 64 has two lateral sides each provided a notch 65 for example in the form of a portion of circle, at the junction angle with the lines of folding 63, so that said folding line is ends with a portion free of any flap on a distance d, portion which can advantageously be find a little below said line, for allow better embedding.
  • edges of the flaps 64 opposite to the third fold lines also include two half-slots 66 located on either side of the flaps, at a determined distance from the lateral edges of said flaps.
  • Each end of the half-slots is extended by a breakable line 67 over a determined distance, angled to the corner corner of the flap with the third fold line, leading to the end of the cutout 65, junction with this fold line.
  • the width of the flaps 64, between the third fold lines 63 and the peripheral edges is equal to half the width of the cover of the body so that, when formed, said edges are joined, the half-slots 66 coming in opposite to form two identical slots, parallel, straddling the junction between flaps.
  • the small flaps 68 are rectangular, for example the same width as the large flaps 64.
  • Small flaps 68 include on each side lateral, at the junction with the line of folding 63, a rectangular projecting part 72 arranged to cooperate with the recessed part 65, way to come to rest on the top edge of the wall 51 or 52 which thus constitutes a support for the detachable flap part of the tongue 69.
  • breakable lines 72 ′ in bias, cutting the top angles of the little ones flaps, to allow better removal of the lid.
  • Figures 6 to 10 show the formation of a box 73, formed with a blank of the type corresponding to figure 5.
  • the bottom 74 is formed in a manner known per se, with the recesses 75 according to the invention, obtained at from the notches 62.
  • the lateral parts 76 of the flaps 68 have been previously glued, with "Hot Melt” glue for example, by dots or lines of glue 77, on a sufficient portion to allow good fixing the flaps together, but inside the internal flap relative to the breakable lines 67 of external flaps 64.
  • the internal flaps do not sink further not, the projecting parts 72 coming to bear on the upper edge of the walls 54, thereby preventing dipping thanks to the back pressure thus exerted.
  • the outer flaps 64 are then folded down (cf. Figure 8) forming the slots 78, and applied to the internal flaps 68.
  • the dividable lines 67 are entirely outside the points and / or lines of collage 77, which will allow easy tearing of the cover when user pulls from slots 78.
  • Gluing lines 79 have also been previously provided on the upper external face external flaps 64 in line with the tabs 69.
  • the tongues 69 are folded down and glued to the upper side of the external flaps 64 for making the means of centering by tab according to the invention.
  • FIG. 10 shows a view in perspective of the body 73 thus obtained, with its 80 anti-dive corners, formed by projections 72 in the notches 65, and its centering tabs 69 in outgrowth, especially with a shift in 81 for better authorize embedding, as specified in reference to Figures 1 and 1A.
  • Figures 11 and 12 show a variant of the body described with reference to Figures 5 to 10.
  • Figures 11 and 12 show a box 83 provided with tabs 84 cut from internal flaps 85.
  • Each internal flap 85 has on its edges lateral 86, two projecting parts, rectangular, from 2 to 5 mm in width, i.e. the first part protruding 87 at the junction with the line of folding 88, as described with reference to FIG. 5, and a second projecting part 89, at the end, located at the end corner of the flap opposite the lines folding 88.
  • Each protruding part 87 and 89 is arranged to rest and click into a recess 90 and 91 correspondent at the fold line 92 of the outer flap 93 with the lateral side of the box 94.
  • Figure 13 shows another embodiment blank 96 according to the invention for an eight-sided box with cut corners.
  • the blank 96 comprises four main components 97 and four intermediate components 98 suitable for forming cut corners of the body, said flaps having no flaps, the rest being terminated by a fixing tab suitable for being fixed on the intermediate flap 98 attached to the flap main end 97.
  • the shutters are interconnected by first 99 parallel fold lines.
  • the blank includes a first set flaps intended to form the bottom and a second set of flaps including those with tab 100 as described with reference to the blank in Figure 5.
  • Each flap of the second set has two lateral sides having a first bias portion at 45 ° towards the outside of the flap from second fold lines 101 which are aligned, said part at an angle being arranged to come over the shutter adjacent intermediary when the body is formed.
  • the large external flaps of the first set also include this biased portion and end notches 102 to form the bottom recesses according to the invention as described in reference to figure 5.
  • Figure 14 shows two boxes 103, 103 'along another embodiment of the invention, comprising four tabs 104 and four recesses 105 'correspondents.
  • two tabs 104 are provided at each end of the big flaps 106 which are here internal, the small flaps 107 being taken into sandwich between the remaining part, openwork of the large flap and the two tabs facing the two large flaps, the edges 108 of which are otherwise adjacent to close the lid.
  • FIG. 15 shows the blank 109 to obtain the box 103 of Figure 14.
  • the tabs are designed identically to which has been described previously. They are cut from the 106 internal flaps with peripheral recess 110, the flaps 107 external being simply rectangular.
  • the recesses are made in the 111 rectangular flaps identical in size to that of the flaps 106, intended to form the bottom.
  • the recesses have complementary dimensions with the tabs as described above.
  • One of the important elements in several modes of realization of the invention lies in the shift to level of the tongue fold line, which can be obtained either by a double fold or by a simply fold line offset, this offset always being greater than or equal to the thickness of the cardboard, towards and inside the tongue.
  • the present invention is not limited to more embodiments particularly described here. She embraces contrary all the variants and in particular those where it also has a sheet of cardboard reported, strengthening the bottom to avoid holes or holes and those where the joining edges between the bottom flaps are at an angle and not perpendicular to the side faces in opposite and centered.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Making Paper Articles (AREA)

Abstract

The invention concerns a case and a blank made of sheet corrugated cardboard or the like, the case having a polygonal cross section, having side faces, an upper face forming a lid, and a lower face forming the bottom of the case. The lid has at least two tabs located on two opposite sides of the lid, cut from the upper face or from side faces adjacent the upper face. The bottom has at least two recesses on its lower surface corresponding to the tabs, complementary in shape to the tabs and arranged such that the recesses fit into the tabs of a case stacked beneath.

Description

La présente invention concerne une caisse de matière en feuille de carton ondulé ou équivalent, du type présentant une section polygonale, comportant des faces latérales, une face supérieure formant couvercle et une face inférieure formant le fond de la caisse.The present invention relates to a case of corrugated sheet material or equivalent, of type having a polygonal section, comprising lateral faces, an upper face forming cover and a lower face forming the bottom of the box.

Elle concerne également un flan pour la réalisation d'une telle caisse.It also concerns a blank for the creation of such a fund.

Elle trouve une application particulièrement importante, bien que non exclusive, dans le domaine des caisses gerbables sur palettes, dont les caisses inférieures ont tendance à l'écrasement en cas de pile de taille trop importante.
L'invention est également applicable aux caisses polygonales à plus de quatre côtés qui peuvent présenter lorsqu'elles ne sont pas entièrement remplies, des déformations en cas de sollicitation latérale ainsi qu'une moins bonne résistance à la compression.It finds a particularly important, although not exclusive, application in the field of stackable boxes on pallets, the lower boxes of which tend to be crushed in the event of a stack of too large a size.
The invention is also applicable to polygonal boxes with more than four sides which can present, when they are not completely filled, deformations in the event of lateral stress as well as a lower resistance to compression.

On connaít déjà des systèmes de centrage de caisse par tenons latéraux venant coopérer avec des orifices placés sur les arêtes des emballages. De tels moyens sont fragiles et ne résistent pas aux manipulations répétées. We already know body centering systems by lateral pins coming to cooperate with orifices placed on the edges of the packaging. Such means are fragile and do not resist handling repeated.

On connaít également des systèmes de verrouillage permettant de bloquer un couvercle de boíte ce qui évite ensuite ces déformations intempestives. Il s'agit notamment du verrouillage par bandes adhésives. De tels systèmes présentent cependant des inconvénients. Ils nécessitent en effet un élément constitutif supplémentaire de la caisse, à savoir la bande adhésive et entraíne de ce fait des coûts et des opérations supplémentaires lors de la fabrication.We also know locking systems allowing to block a box cover which then avoids these untimely deformations. he these include strip locking adhesives. However, such systems have disadvantages. They indeed require an element additional constituent of the case, namely the adhesive tape and therefore entails costs and additional operations during the manufacturing.

Le document FR-A-2 311 717 décrit un emballage dont le couvercle formé de rabats comporte des rabats de forme complémentaire à celle d'échancrures pratiquées dans les rabats du fond pour éviter le glissement de deux caisses posées l'une sur l'autre.Document FR-A-2 311 717 describes a package whose lid formed by flaps has flaps in a shape complementary to that of notches practiced in the bottom flaps to avoid sliding of two boxes placed one on top of the other.

L'empilage des caisses obtenu n'est cependant jamais parfaitement vertical.The stacking of the boxes obtained is however not never perfectly vertical.

La présente invention vise à fournir une boíte et un flan répondant mieux que ceux antérieurement connus aux exigences de la pratique notamment en ce qu'elle propose un centrage des caisses l'une sur l'autre rendant possible un empilage parfait des caisses l'une sur l'autre, à l'aplomb l'une de l'autre, ce qui n'a jamais été obtenu par le passé, de façon industrielle et répétitive.The present invention aims to provide a box and a blank responding better than those previously known to the requirements of practice especially in this that it offers centering of the boxes one on the other making it possible to stack the boxes one on top of the other, directly above one of the other, which has never been achieved in the past, in an industrial and repetitive way.

On a ainsi pu observer une amélioration de 15 % en résistance à la compression des caisses situées en pied de palette, à qualité de carton égale, grâce au centrage selon l'invention. We could thus observe a 15% improvement in compressive strength of the boxes located in pallet base, with equal cardboard quality, thanks to the centering according to the invention.

Du fait des possibilités d'empilement parfait que le centrage selon l'invention autorise, les caisses inférieures sont donc mieux sollicitées en compression et résistent mieux.Due to the perfect stacking possibilities that the centering according to the invention allows, the boxes are therefore better used in compression and resist better.

Avec l'invention, il est également possible de prévoir un système de verrouillage du couvercle permettant un bon équerrage de la caisse lors de sa fermeture, simple et aisée à mettre en oeuvre, sans coûts additionnels et autorisant un blocage définitif, ce qui améliore encore la tenue à la compression.With the invention, it is also possible to provide a lid locking system allowing a good squaring of the body during its closing, simple and easy to implement, without additional costs and authorizing a blockage final, which further improves the resistance to compression.

Dans ce but, l'invention propose notamment une caisse de matière en feuille de carton ondulé ou équivalent, présentant une section polygonale, comportant des faces latérales, une face supérieure formant couvercle et une face inférieure formant le fond de la caisse, ladite face supérieure présentant des parties en excroissance en saillies par rapport à la surface extérieure de la face supérieure, et ledit fond comprenant des parties en creux, de forme complémentaire aux parties en excroissance et agencées pour s'emboíter avec lesdites parties en excroissance d'une caisse disposée en dessous,
caractérisée
en ce que les parties en excroissance sont formées par au moins deux languettes respectivement situées sur deux côtés opposés dudit couvercle, découpés d'un côté soit dans un rabat de la face supérieure, celle-ci étant alors formée par la superposition de rabats, soit dans la face latérale adjacente à ladite face supérieure, et articulées de l'autre côté parallèlement et sensiblement de façon confondue avec la ligne de jonction entre ladite face supérieure et la face latérale adjacente, lesdites languettes étant respectivement rabattues sur la surface extérieure de ladite face supérieure à laquelle elles sont collées, et en ce que les parties en creux sont formées par au moins deux évidements ou par des parties d'échancrures correspondant auxdites languettes, réalisées dans ladite face inférieure, de formes globales complémentaires aux formes des languettes.To this end, the invention proposes in particular a box of material made of corrugated cardboard sheet or equivalent, having a polygonal section, comprising lateral faces, an upper face forming a cover and a lower face forming the bottom of the box, said upper face. having protruding parts projecting from the outer surface of the upper face, and said bottom comprising recessed parts, of shape complementary to the protruding parts and arranged to fit together with said protruding parts of a box arranged below,
characterized
in that the protruding parts are formed by at least two tabs respectively located on two opposite sides of said cover, cut on one side either in a flap of the upper face, the latter then being formed by the superposition of flaps, or in the side face adjacent to said upper face, and articulated on the other side parallel and substantially coincident with the junction line between said upper face and the adjacent side face, said tabs being respectively folded down on the outer surface of said face to which they are glued, and in that the hollow parts are formed by at least two recesses or by parts of indentations corresponding to said tongues, produced in said lower face, of overall shapes complementary to the shapes of the tongues.

Dans des modes de réalisations avantageux, on a de plus recours à l'une et/ou à l'autre des dispositions suivantes :

  • la face inférieure et les faces latérales sont formées par une barquette ouverte, le couvercle de la caisse étant constitué par un volet muni d'au moins un rabat latéral, au moins une languette étant découpée dans ledit rabat latéral, lesdites languettes étant retournées pour être collées sur ledit volet formant la face supérieure ;
  • la face inférieure et les faces latérales sont formées à partir d'un flan comprenant une suite d'au moins quatre volets principaux propres à former les faces latérales, reliés entre eux par des lignes de jonction, chaque volet principal étant muni d'un rabat inférieur, lesdits rabats inférieurs étant propres à former le fond de la caisse, le couvercle de la caisse étant constitué par un volet central muni d'au moins un rabat latéral, au moins une languette étant découpée dans ledit rabat latéral, lesdites languettes étant retournées pour être collées sur ledit volet central formant la face supérieure ;
  • la caisse est formée à partir d'un flan comprenant une suite d'au moins quatre volets principaux propres à former les faces latérales, reliés entre eux par des lignes de jonction, chaque volet principal étant muni d'un rabat supérieur et d'un rabat inférieur respectivement situés de part et d'autre dudit volet principal, lesdits rabats supérieurs étant propres à former le couvercle de la caisse, lesdits rabats inférieurs étant propres à former le fond de la caisse, les languettes étant découpées dans les faces latérales de la caisse et les évidements étant réalisés dans les rabats inférieurs ;
  • la caisse est formée à partir d'un flan comprenant une suite d'au moins quatre volets principaux propres à former deux faces latérales, le fond et le couvercle de la caisse, reliés entre eux par des lignes de jonction, chaque volet principal étant muni d'un rabat supérieur et d'un rabat inférieur respectivement situés de part et d'autre dudit volet principal, lesdits rabats supérieurs ou inférieurs étant propres à former les deux autres faces latérales de la caisse et les languettes sont découpées dans les rabats inférieur et supérieur d'un premier volet formant le couvercle, les évidements étants réalisés dans un second volet formant le fond de la caisse ;
  • le fond et le couvercle comprennent chacun deux rabats externes opposés et deux rabats internes opposés situés en dessous desdits rabats externes, lesdits rabats étant reliés respectivement aux faces latérales par des lignes de pliage et les deux languettes sont découpées d'un côté dans les rabats internes, et articulées respectivement de l'autre côté parallèlement aux lignes de pliage desdits rabats internes, lesdits rabats externes étant collés sur les portions de rabats internes adjacentes aux languettes et lesdites languettes recouvrant respectivement lesdits rabats externes auxquels elles sont collées ;
  • les rabats externes comprennent des encoches aux angles de jonction avec les lignes de pliage et les rabats internes comprennent des parties en saillie d'extrémité en vis-à-vis s'encliquant dans lesdites encoches ;
  • les rabats externes comprennent des encoches intermédiaires, situées sur les lignes de pliage et les rabats internes comprennent des parties en saillie d'extrémité en vis-à-vis s'encliquant dans lesdites encoches intermédiaires ;
  • la caisse comporte quatre languettes opposées deux à deux, collées sur la surface externe de la face supérieure formant couvercle de la caisse, et quatre évidements en vis-à-vis dans la face inférieure de la caisse ;
  • les languettes sont découpées en ménageant autour desdites languettes un évidement périphérique ;
  • chaque languette présente une forme rectangulaire ou trapézoïdale isocèle ;
  • le couvercle comprend deux fentes centrées, respectivement situées de part et d'autre du couvercle, parallèlement et à une distance déterminée des lignes de jonction entre face latérale et face supérieure munie de languettes collées, les extrémités desdites fentes étant reliées par des lignes de rupture aux coins d'extrémité de jonction avec lesdites lignes de jonction, propres à permettre l'ouverture de la caisse par arrachage dudit couvercle en tirant vers l'extérieur de la caisse à partir des deux fentes ;
  • la caisse est à huit côtés, à savoir quatre côtés principaux séparés par des côtés intermédiaires formant coins coupés, et elle est formée autour d'un mandrin.
In advantageous embodiments, use is made of one and / or the other of the following arrangements:
  • the underside and the side faces are formed by an open tray, the cover of the box being constituted by a flap provided with at least one lateral flap, at least one tab being cut out in said lateral flap, said tabs being turned over to be glued to said flap forming the upper face;
  • the underside and the side faces are formed from a blank comprising a series of at least four main flaps suitable for forming the side faces, connected together by junction lines, each main flap being provided with a flap lower, said lower flaps being able to form the bottom of the box, the cover of the box being constituted by a central flap provided with at least one side flap, at least one tab being cut out from said side flap, said tabs being turned over to be glued to said central flap forming the upper face;
  • the box is formed from a blank comprising a series of at least four main flaps suitable for forming the lateral faces, connected together by junction lines, each main flap being provided with an upper flap and with a lower flap respectively located on either side of said main flap, said upper flaps being able to form the cover of the box, said lower flaps being able to form the bottom of the box, the tabs being cut in the lateral faces of the body and the recesses being made in the lower flaps;
  • the box is formed from a blank comprising a series of at least four main flaps suitable for forming two lateral faces, the bottom and the cover of the box, interconnected by junction lines, each main flap being provided an upper flap and a lower flap respectively located on either side of said main flap, said upper or lower flaps being suitable for forming the two other lateral faces of the body and the tongues are cut in the lower flaps and upper part of a first flap forming the cover, the recesses being made in a second flap forming the bottom of the box;
  • the bottom and the cover each comprise two opposite external flaps and two opposite internal flaps located below said external flaps, said flaps being connected respectively to the lateral faces by fold lines and the two tabs are cut from one side in the internal flaps , and articulated respectively on the other side parallel to the fold lines of said internal flaps, said external flaps being glued to the portions of internal flaps adjacent to the tabs and said tabs respectively covering said external flaps to which they are glued;
  • the outer flaps include notches at the angles of junction with the fold lines and the inner flaps include opposite protruding parts snapping into said notches;
  • the external flaps comprise intermediate notches, situated on the fold lines and the internal flaps comprise opposite protruding parts which snap into said intermediate notches;
  • the box has four opposing tongues two by two, glued to the external surface of the upper face forming the cover of the box, and four opposite recesses in the lower face of the box;
  • the tongues are cut by providing around said tongues a peripheral recess;
  • each tongue has an isosceles rectangular or trapezoidal shape;
  • the cover comprises two central slots, respectively located on either side of the cover, in parallel and at a determined distance from the junction lines between lateral face and upper face provided with glued tabs, the ends of said slots being connected by breaking lines at the end corners of junction with said junction lines, suitable for allowing the opening of the box by tearing off said cover by pulling out of the box from the two slots;
  • the body is eight sides, namely four main sides separated by intermediate sides forming cut corners, and it is formed around a mandrel.

L'invention propose également un flan permettant d'obtenir une caisse telle que décrite ci-avant.The invention also provides a blank allowing to obtain a case as described above.

Elle propose également et notamment un flan ou ensemble de flans de matière en feuille de carton ondulé ou équivalent destiné à former une caisse à section polygonale,
   comportant des faces latérales, une face supérieure formant couvercle et une face inférieure formant le fond de la caisse, ledit flan ou ensemble de flans comportant

  • un premier flan ou une première portion de flan destiné à former le couvercle de la caisse, ledit premier flan ou ladite première portion de flan comprenant un volet muni d'au moins un rabat latéral, ou comprenant deux rabats dits supérieurs, ledit volet ou les deux rabats supérieurs étant destinés à former ladite face supérieure, et
  • un second flan ou une seconde portion de flan propre à constituer le fond de la caisse, comprenant un volet inférieur ou comprenant au moins deux rabats inférieurs, ledit volet inférieur ou lesdits deux rabats inférieurs étant propres à former la face inférieure de la caisse, caractérisé
    • en ce que ledit rabat latéral ou lesdits rabats supérieurs comportent chacun au moins une languette découpée d'un côté dans ledit rabat, et reliée de l'autre côté à la face supérieure ou au volet adjacent par une ligne de pliage un peu décalée par rapport à la ligne de pliage dudit rabat avec ledit volet adjacent,
    lesdites languettes étant agencées pour recouvrir respectivement la face supérieure pour y être collées,
    et en ce que ledit volet inférieur ou lesdits rabats inférieurs comportent des évidements ou des portions d'échancrures dont la forme globale est complémentaire à celle d'une languette une fois la caisse formée.It also proposes, in particular, a blank or set of blanks of material made of corrugated cardboard sheet or equivalent intended to form a box with polygonal section,
    comprising side faces, an upper face forming a cover and a lower face forming the bottom of the box, said blank or set of blanks comprising
  • a first blank or a first blank portion intended to form the cover of the box, said first blank or said first blank portion comprising a flap provided with at least one lateral flap, or comprising two so-called upper flaps, said flap or the two upper flaps being intended to form said upper face, and
  • a second blank or a second blank portion suitable for constituting the bottom of the box, comprising a lower flap or comprising at least two lower flaps, said lower flap or said two lower flaps being suitable for forming the lower face of the box, characterized
    • in that said lateral flap or said upper flaps each have at least one tongue cut out on one side in said flap, and connected on the other side to the upper face or to the adjacent flap by a fold line slightly offset from to the fold line of said flap with said adjacent flap,
    said tabs being arranged to respectively cover the upper face to be glued thereto,
    and in that said lower flap or said lower flaps have recesses or notch portions whose overall shape is complementary to that of a tongue once the body is formed.

    Dans un mode de réalisation avantageux, le flan ou ensemble de flans comporte

  • un premier flan ou une première portion de flan destiné à former le couvercle de la caisse comprenant un volet muni de rabats latéraux, au moins une languette étant découpée dans au moins un desdits rabats latéraux et agencée pour être retournée et collés sur ledit volet formant la face supérieure,
  • et un second flan ou une seconde portion de flan destiné à former le fond de la caisse, comprenant un volet central rectangulaire muni sur chacun de ses côtés d'un premier rabat complété pour certains de second rabats latéraux et propres à former les parois latérales de la caisse, ledit volet central comprenant au moins deux évidements situés en vis-à-vis le long des lignes de jonction avec les premiers rabats, lesdits évidements étant de forme complémentaire à celle des languettes et agencés pour être à l'aplomb desdites languettes lorsque la caisse est formée.
    • In an advantageous embodiment, the blank or set of blanks comprises
  • a first blank or a first blank portion intended to form the cover of the box comprising a flap provided with lateral flaps, at least one tab being cut from at least one of said lateral flaps and arranged to be turned over and glued to said flap forming the upper side,
  • and a second blank or a second portion of blank intended to form the bottom of the box, comprising a rectangular central flap provided on each of its sides with a first flap completed for some of the second lateral flaps and suitable for forming the side walls of the body, said central flap comprising at least two recesses located vis-a-vis along the lines of junction with the first flaps, said recesses being of shape complementary to that of the tongues and arranged to be perpendicular to said tongues when the fund is formed.

    • Dans un mode de réalisation avantageux, le flan comporte une suite d'au moins quatre volets principaux reliés entre eux par des lignes de jonction, chaque volet principal étant muni de part et d'autre d'un rabat supérieur et d'un rabat inférieur respectivement situés de part et d'autre dudit volet principal, un premier volet principal étant propre à former le couvercle de la caisse, et un second volet principal, non adjacent au premier volet principal, étant propre à former le fond de la caisse, et en ce que les languettes sont découpées dans les rabats inférieur et supérieur dudit premier volet principal, les évidements étant réalisés dans le second volet principal.In an advantageous embodiment, the blank comprises a series of at least four parts main interconnected by lines of junction, each main flap being provided on the and on the other with an upper flap and a flap lower respectively located on both sides of said main component, a first main component being suitable for forming the cover of the box, and a second main shutter, not adjacent to the first main component, being suitable for forming the bottom of the body, and in that the tabs are cut in the lower and upper flaps of said first main flap, the recesses being made in the second main component.

    Avantageusement, le flan comporte des volets latéraux reliés entre eux par l'intermédiaire de premières lignes de pliage parallèles, un premier ensemble de rabats reliés à un côté desdits volets latéraux par des deuxièmes lignes de pliage orthogonales auxdites premières lignes de pliage, propre à former le fond de la caisse, et un second ensemble de rabats reliés à l'autre côté desdits volets latéraux par des troisièmes lignes de pliage orthogonales auxdites premières lignes de pliage, propres à former le couvercle de la caisse, lesdits premier et second ensembles étant constitués de deux rabats latéraux dits externes intercalés avec deux rabats latéraux dits internes, caractérisé en ce que lesdits rabats internes du couvercle comportent chacun une languette découpée d'un côté dans ledit rabat, et reliée de l'autre côté au volet adjacent par une ligne de pliage sensiblement confondue avec la troisième ligne de pliage dudit rabat,
    lesdits rabats externes étant agencés pour être collés sur les portions de rabats internes adjacentes aux languettes et lesdites languettes pour recouvrir respectivement lesdits rabats externes auxquels elles sont propres à être collées,
    et en ce que les côtés latéraux des rabats externes du fond comportent des échancrures de forme complémentaire à celle d'une demi-languette.    Advantageously, the blank has side flaps connected to each other by means of first parallel fold lines, a first set of flaps connected to one side of said side flaps by second fold lines orthogonal to said first fold lines, suitable for forming the bottom of the box, and a second set of flaps connected to the other side of said side flaps by third fold lines orthogonal to said first fold lines, suitable for forming the cover of the box, said first and second sets being formed of two so-called external side flaps interposed with two so-called internal side flaps, characterized in that said internal flaps of the cover each have a tongue cut out on one side in said flap, and connected on the other side to the adjacent flap by a line of folding substantially coincident with the third fold line of said flap,
    said external flaps being arranged to be glued to the portions of internal flaps adjacent to the tabs and said tabs to respectively cover said external flaps to which they are suitable for being glued,
    and in that the lateral sides of the outer flaps of the bottom have notches of shape complementary to that of a half-tab.

    Avantageusement, les bords périphériques des rabats externes opposés aux troisièmes lignes de pliage comprennent respectivement deux demi-fentes situées de part et d'autre desdits rabats externes, à une distance déterminée des bords latéraux desdits rabats correspondants.Advantageously, the peripheral edges of the external flaps opposite the third lines of folding respectively include two half-slots located on either side of said external flaps, a determined distance from the lateral edges of said corresponding flaps.

    Egalement avantageusement dans un autre mode de réalisation, le flan ou l'ensemble de flans comporte deux fentes réalisées dans le volet destiné à former le couvercle de la caisse.Also advantageously in another mode of realization, the blank or the set of blanks comprises two slots made in the flap intended to form the cover of the box.

    Dans un autre mode de réalisation avantageux, chaque extrémité de fente ou de demi-fente est prolongée par une ligne sécable ou de rupture dans ledit couvercle sur une distance déterminée, ladite ligne sécable étant dirigée en biais vers le coin d'angle de la ligne de jonction avec la face latérale adjacente et contiguë à une languette et étant agencée pour être située vers le centre du couvercle et au delà du bord correspondant de ladite languette et des points de collage du couvercle, lorsque ladite caisse est formée.In another advantageous embodiment, each end of slot or half-slot is extended by a breakable line or break in said cover over a determined distance, said breakable line being angled toward the corner angle of the junction line with the lateral face adjacent to and adjacent to a tongue and being arranged to be located towards the center of the cover and beyond the corresponding edge of said tongue and bonding points of the cover, when said body is formed.

    Avantageusement, chaque languette présente une forme rectangulaire ou trapézoïdale isocèle. Advantageously, each tab has a isosceles rectangular or trapezoidal shape.

    Selon l'invention plus particulièrement décrite ici, les languettes sont par ailleurs découpées en ménageant autour desdites languettes un évidement périphérique.According to the invention more particularly described here, the tabs are also cut into providing a recess around said tongues peripheral.

    L'invention sera mieux comprise à la lecture de la description qui suit de modes de réalisation donnés à titre d'exemple non limitatif.The invention will be better understood on reading the description which follows of embodiments given to by way of nonlimiting example.

    Elle se réfère aux dessins qui l'accompagnent, dans lesquels :

    • la figure 1 est une vue en perspective d'une caisse selon un premier mode de réalisation de l'invention.
    • la figure 1A est une vue schématique et partielle en coupe montrant le principe du centrage entre deux caisses de la figure 1.
    • la figure 2 est une vue en plan du flan de la figure 1.
    • la figure 3 est une vue en perspective de la partie inférieure d'une caisse en forme de barquette, selon un second mode de réalisation de l'invention.
    • les figures 4A et 4B montrent les flans permettant respectivement d'obtenir ladite partie inférieure de la figure 3 et le couvercle de la caisse correspondante.
    • la figure 5 est une vue en plan d'un autre mode de réalisation d'un flan selon l'invention à quatre volets.
    • la figure 6 est une vue en perspective de la caisse, couvercle ouvert, selon le flan de la figure 5.
    • les figures 7, 8 et 9 sont des vues de dessus de la caisse de la figure 5 montrant la formation successive du couvercle.
    • la figure 10 est une vue en perspective de la caisse des figures 6 à 9 une fois formée.
    • la figure 11 est une vue en perspective d'un quatrième mode de réalisation d'une caisse selon l'invention, couvercle ouvert.
    • la figure 12 est une vue en perspective de la caisse de la figure 11 couvercle fermé.
    • la figure 13 est une vue en plan d'un autre mode de réalisation selon l'invention d'un flan à huit côtés.
    • la figure 14 montre en perspective un autre mode de réalisation de caisses selon l'invention, avec quatre languettes de centrage, faisant apparaítre les possibilités d'emboítement entre couvercle et fond.
    • la figure 15 est le flan en plan de la caisse de la figure 14.
    It refers to the accompanying drawings, in which:
    • Figure 1 is a perspective view of a box according to a first embodiment of the invention.
    • FIG. 1A is a schematic and partial sectional view showing the principle of centering between two boxes of FIG. 1.
    • Figure 2 is a plan view of the blank of Figure 1.
    • Figure 3 is a perspective view of the lower part of a container-shaped box, according to a second embodiment of the invention.
    • FIGS. 4A and 4B show the blanks making it possible respectively to obtain said lower part of FIG. 3 and the cover of the corresponding box.
    • Figure 5 is a plan view of another embodiment of a blank according to the invention with four components.
    • FIG. 6 is a perspective view of the box, lid open, according to the blank of FIG. 5.
    • Figures 7, 8 and 9 are top views of the box of Figure 5 showing the successive formation of the cover.
    • Figure 10 is a perspective view of the box of Figures 6 to 9 once formed.
    • Figure 11 is a perspective view of a fourth embodiment of a box according to the invention, open lid.
    • Figure 12 is a perspective view of the box of Figure 11 with the cover closed.
    • Figure 13 is a plan view of another embodiment according to the invention of an eight-sided blank.
    • Figure 14 shows in perspective another embodiment of boxes according to the invention, with four centering tabs, showing the possibilities of nesting between cover and bottom.
    • FIG. 15 is the blank in plan of the box of FIG. 14.

    La figure 1 montre une caisse 1 en carton ondulé, par exemple double face ou double double, d'épaisseur de 3 mm ou de 5 mm, de forme parallélépipédique, comportant quatre faces latérales rectangulaires 2, 3, 4 et 5, à savoir deux grandes faces 2 et 4 en vis-à-vis et deux petites faces d'extrémité 3 et 5 en vis-à-vis. FIG. 1 shows a box 1 of corrugated cardboard, for example double sided or double double, thick 3 mm or 5 mm, in the shape of a parallelepiped, comprising four rectangular lateral faces 2, 3, 4 and 5, namely two large faces 2 and 4 facing each other and two small end faces 3 and 5 in vis-a-vis.

    La caisse 1 comprend également une face supérieure 6 formant le couvercle de la caisse et une face inférieure 7 formant le fond de la caisse.Box 1 also includes an upper face 6 forming the cover of the box and one side lower 7 forming the bottom of the box.

    Selon ce mode de réalisation de l'invention, le couvercle comprend deux languettes rectangulaires 8 et 9, de largeur supérieure à 3 cm, par exemple de 4 cm, et de longueur supérieure à 2 cm, par exemple de 4 cm de longueur, d'épaisseur égale à celle du carton, et respectivement découpées dans les faces latérales 3 et 5 adjacentes à la face supérieure 6, sur trois côtés desdites languettes, qui sont rabattues et collées sur la face extérieure 10 de la face supérieure, par exemple avec de la colle dit "Hot Melt" en langage anglo-saxon.According to this embodiment of the invention, the cover includes two rectangular tabs 8 and 9, of width greater than 3 cm, for example of 4 cm, and longer than 2 cm, for example 4 cm in length, thickness equal to that of cardboard, and respectively cut in the faces lateral 3 and 5 adjacent to the upper face 6, on three sides of said tabs, which are folded down and glued to the outer face 10 of the upper side, for example with glue says "Hot Melt" in Anglo-Saxon language.

    Pour ce faire la languette est articulée sur son quatrième côté parallèlement et de façon sensiblement confondue avec la ligne de jonction 11, entre face supérieure et face latérale, autour d'une double ligne de pliage 12 dont une ligne au moins est décalée vers la languette par rapport à la ligne de jonction 11.To do this, the tongue is hinged on its fourth side in parallel and substantially combined with junction line 11, between face upper and lateral face, around a double fold line 12 of which at least one line is offset towards the tongue relative to the line of junction 11.

    Le décalage de la double ligne permet un décrochage de l'extrémité de la languette du côté de sa ligne de jonction 12, entraínant une saillie plus importante à ce niveau qui favorise l'encastrement avec les évidements de la caisse du dessus (cf. figure 1A).The offset of the double line allows a stall of the end of the tongue on the side of its junction line 12, resulting in a more protruding important at this level which favors the embedding with the recesses in the top box (cf. Figure 1A).

    Les languettes 8 et 9 sont par exemple centrées par rapport à la face latérale correspondante. Elles peuvent également être disposées symétriquement par rapport au centre C de la face supérieure 6.The tongues 8 and 9 are for example centered with respect to the corresponding lateral face. They can also be arranged symmetrically by relative to the center C of the upper face 6.

    Le fond constitué par la face inférieure 7 comprend quant-à lui, à l'aplomb des languettes 8 et 9, des évidements rectangulaires 13 et 14 de même dimension que les languettes avec une tolérance d'ajustement inférieure au millimètre, ce qui autorise un encastrement parfait entre languette d'une caisse inférieure et évidement d'une caisse supérieure.The bottom formed by the underside 7 meanwhile, plumb with the tongues 8 and 9, rectangular recesses 13 and 14 likewise dimension as the tabs with a tolerance adjustment less than a millimeter, which allows perfect embedding between tongue of a lower case and of course a case superior.

    On a représenté sur la figure 2 le flan 15 ayant permis de réaliser la caisse 1 de la figure 1.FIG. 2 shows the blank 15 having allowed to make the box 1 of Figure 1.

    Le flan 15 comprend une suite de quatre volets principaux 7, 4, 6 et 2 terminée par une languette 16 de collage s'étendant sur toute la longueur des volets.The blank 15 comprises a series of four components main 7, 4, 6 and 2 terminated by a tongue 16 of glue extending over the entire length of the shutters.

    Les volets sont reliés entre eux par des lignes de pliage ou de jonction 17.The shutters are interconnected by lines of folding or joining 17.

    La suite de volets est bordée d'un côté par un premier ensemble 18, de rabats supérieurs, et de l'autre côté par un second ensemble 19, de rabats inférieurs.The series of shutters is bordered on one side by a first set 18, upper flaps, and the other side by a second set 19, of flaps lower.

    Plus précisément chaque volet principal comporte un rabat supérieur et un rabat inférieur.More precisely, each main component comprises an upper flap and a lower flap.

    Les volets 2 et 4, propres à former des faces latérales de la caisse comprennent chacun un volet supérieur 18' et un volet inférieur 19', rectangulaire, identiques entre eux. Sides 2 and 4, suitable for forming faces sides of the body each include a flap upper 18 'and lower flap 19', rectangular, identical to each other.

    Les volets 18' et 19' sont agencés pour former la partie interne des parois latérales 3 et 5 de la caisse 1, par exemple en étant jointifs au niveau de leurs extrémités lorsque la caisse est réalisée.The flaps 18 'and 19' are arranged to form the internal part of the side walls 3 and 5 of the box 1, for example by being joined at the level of their ends when the body is made.

    Le volet 6 destiné à former le couvercle de la caisse est relié quant-à lui par les lignes de pliage 11, à deux rabats rectangulaires 18" et 19" qui comprennent les languettes rectangulaires 8 et 9.The flap 6 intended to form the cover of the body is connected by the fold lines 11, with two rectangular flaps 18 "and 19" which include rectangular tabs 8 and 9.

    Chaque languette est découpée sur trois côtés 20 dans le rabat correspondant et est reliée au volet 6 sur le quatrième côté 21 par la double ligne de pliage 12.Each tab is cut on three sides 20 in the corresponding flap and is connected to flap 6 on the fourth side 21 by the double line of folding 12.

    Un évidement 22 ou 23, de largeur suffisante pour permettre un bon dégagement de la languette par rapport au rabat, par exemple de largeur comprise entre 1 mm et 5 mm, par exemple de 3 mm, est respectivement prévu autour des languettes 8 et 9.A recess 22 or 23, of sufficient width to allow good release of the tongue by relative to the flap, for example of width included between 1 mm and 5 mm, for example 3 mm, is respectively provided around the tongues 8 and 9.

    Cet évidement permet le maintien des languettes 8 et 9 à l'horizontal, dans le prolongement du volet 6 lors du pliage des rabats 18" et 19" autour d'un mandrin, lors de la formation de la caisse.This recess allows the retention of the tongues 8 and 9 horizontally, in the extension of shutter 6 when folding the 18 "and 19" flaps around a mandrel, during the formation of the body.

    Il suffit ensuite de pousser par au dessous et de rabattre la languette vers le volet 6 autour de la double ligne de pliage 12 pour venir coller ladite languette en position en saillie pour constituer les moyens de centrage selon l'invention.Then just push from below and fold the tab towards flap 6 around the double fold line 12 to glue said tongue in projecting position to constitute the centering means according to the invention.

    Enfin le volet 7 est relié quant-à lui via des lignes de pliage 24 perpendiculaires aux lignes 17, à deux rabats rectangulaires 18‴ et 19‴ de dimensions égales à celles des rabats 18" et 19", mais dépourvus de languette, la dimension transversale des rabats 18",18"', 19" et 19"' étant telle que lesdits rabats sont jointifs deux à deux selon la ligne 25 lorsque la caisse 1 est formée (cf. figure 1).Finally, the flap 7 is connected as for it via fold lines 24 perpendicular to lines 17, at two rectangular flaps 18 ‴ and 19 ‴ of dimensions equal to those of the 18 "and 19" flaps, but without tongue, the transverse dimension of the flaps 18 ", 18" ', 19 "and 19"' being such that said flaps are joined two by two along line 25 when box 1 is formed (see figure 1).

    Le volet 7 comprend les deux évidements rectangulaires 13 et 14, par exemple pratiqués dans une partie seulement de l'épaisseur du carton si c'est un double double, dont l'extrémité 26 située du côté du rabat chevauche la ligne de pliage 24, ce qui permet, une fois la caisse formée, de ménager une sur-épaisseur d'évidement 27 plus importante à l'aplomb de la ligne 12, permettant un meilleur encastrement avec la saillie plus importante 28 due au décalage de la double ligne 12.Part 7 includes the two recesses rectangular 13 and 14, for example practiced in only part of the thickness of the cardboard if it is a double double, the end 26 of the side of the flap overlaps fold line 24, which allows, once the box is formed, to spare 27 more overcut thickness at plumb with line 12, allowing better embedding with the larger projection 28 due offset from double line 12.

    La figure 1A montre ainsi schématiquement en coupe l'encastrement de la saillie 28' de la caisse 1' dans l'évidement 27 de la caisse 1.Figure 1A shows schematically in section the embedding of the projection 28 'of the body 1' in the recess 27 in the body 1.

    De tels ajustements sont possibles avec la précision recherchée, notamment parce que les caisses sont formées autour de mandrins comme décrit dans le document FR-A-2 629 012.Such adjustments are possible with the precision sought, in particular because the cases are formed around mandrels as described in the document FR-A-2 629 012.

    Les figures 3, 4A et 4B montrent une barquette ouverte 30, parallélépipédique, formée par un flan 31 de type connu en lui-même (cf. figure 4A), comprenant un volet central 32, muni sur chaque côté de rabats, à savoir deux premiers rabats rectangulaires identiques 33 en vis-à-vis reliés au volet central 32 par des lignes de pliage 34 et deux seconds rabats rectangulaires 35 reliés au volet 32 par des lignes de pliage 36 perpendiculaires aux lignes de pliage 34, et comprenant eux-mêmes deux troisièmes rabats identiques 37, respectivement reliés à chaque côté latéral, destinés à former par collage avec les rabats rectangulaires 33 deux des parois latérales en vis-à-vis de la barquette, les deux autres parois étant formées par les rabats 35.Figures 3, 4A and 4B show a tray open 30, parallelepiped, formed by a blank 31 of a type known in itself (cf. FIG. 4A), comprising a central flap 32, provided on each side with flaps, namely two first rectangular flaps identical 33 vis-à-vis connected to the central flap 32 by fold lines 34 and two second flaps rectangular 35 connected to flap 32 by lines fold 36 perpendicular to the fold lines 34, and themselves comprising two third flaps identical 37, respectively connected to each side lateral, intended to form by bonding with rectangular flaps 33 two of the side walls in opposite the tray, the other two walls being formed by the flaps 35.

    Dans le mode de réalisation décrit ici, il est prévu quatre moyens de centrage.In the embodiment described here, it is provided four centering means.

    Pour ce faire le volet central 32 comporte quatre parties évidées 38, par exemple identiques, centrées par rapport aux parois latérales de la caisse, rectangulaires et dont un côté 39 est sensiblement confondu avec une partie centrale des lignes de pliage 34 et 36.To do this, the central flap 32 has four hollow parts 38, for example identical, centered relative to the side walls of the body, rectangular and one side 39 of which is substantially confused with a central part of the lines of folding 34 and 36.

    La figure 4B montre le flan 40 pour constituer le couvercle de la caisse obtenue avec la barquette 30 de la figure 3.FIG. 4B shows the blank 40 to constitute the cover of the box obtained with the tray 30 in Figure 3.

    Le flan 40 comporte un volet central 41 rectangulaire relié par des lignes de pliage perpendiculaires deux à deux 42, à des rabats rectangulaires 43.The blank 40 has a central flap 41 rectangular connected by fold lines perpendicular two by two 42, with flaps rectangular 43.

    Chaque rabat 43 comporte une languette 44 selon l'invention, par exemple rectangulaire, découpée sur trois côtés dans le rabat en ménageant un évidement périphérique 45, et reliée du côté du volet central 41 audit volet central par une double ligne de pliage 46, ou par une simple ligne de pliage décalée à l'intérieur de la languette.Each flap 43 has a tongue 44 along the invention, for example rectangular, cut out of three sides in the flap, leaving a recess peripheral 45, and connected on the side of the central flap 41 central flap audit by a double fold line 46, or by a simple fold line offset to the inside of the tongue.

    Les languettes 44 ont une forme complémentaire à celle des évidements 38 et sont donc agencées pour être retournées et collées, par exemple avec de la colle "Hot Melt" en langage anglo-saxon, sur la face extérieure du volet 41.The tongues 44 have a shape complementary to that of the recesses 38 and are therefore arranged for be turned over and glued, for example with "Hot Melt" glue in Anglo-Saxon language, on the face flap 41.

    Les parties restantes des rabats 43 sont quant-à elles collées sur les faces externes des rabats 33 et 35 de la barquette 30.The remaining parts of the flaps 43 are they glued to the outer faces of the flaps 33 and 35 from tray 30.

    La figure 5 montre un flan 50 comprenant une suite de quatre volets latéraux, à savoir deux grands volets rectangulaires 51 et 52 intercalés avec deux petits volets rectangulaires 53 et 54.FIG. 5 shows a blank 50 comprising a series of four side flaps, namely two large rectangular shutters 51 and 52 interspersed with two small rectangular flaps 53 and 54.

    La suite de volets est terminée d'un côté, par une languette 55 propre à être fixée sur la périphérie du volet d'extrémité 51. Les volets sont reliés entre eux par des premières lignes de pliage 56 parallèles.The series of shutters is finished on one side, by a tongue 55 suitable for being fixed on the periphery of the end flap 51. The flaps are connected between them by first parallel fold lines 56.

    Le flan comprend un premier ensemble 57 de rabats situés d'un côté des volets et destiné à former le fond de la caisse, et un second ensemble 58 de rabats situés de l'autre côté des volets et destiné à former le couvercle de la caisse.The blank includes a first set 57 of flaps located on one side of the flaps and intended to form the bottom of the box, and a second set 58 of flaps located on the other side of the flaps and intended to form the cover of the box.

    Plus précisément le premier ensemble 57 comprend quatre rabats sensiblement rectangulaires reliés aux côtés latéraux des quatre volets par des lignes de pliage 59 alignées, perpendiculaires aux premières lignes de pliage, à savoir deux grands rabats 60 identiques, dits externes reliés aux grands volets 51 et 52 et deux petits rabats 61 identiques dits internes, reliés aux petits volets 53 et 54.More precisely, the first set 57 comprises four substantially rectangular flaps connected to the lateral sides of the four flaps by lines of folding 59 aligned, perpendicular to the first fold lines, i.e. two large flaps 60 identical, called external connected to the large shutters 51 and 52 and two small 61 identical flaps called internal, connected to small flaps 53 and 54.

    Dans le mode de réalisation plus particulièrement décrit ici, les deux grands rabats 60 présentent une largeur, dans le sens transversal, égale ou sensiblement égale à la moitié de la largeur de la caisse fermée.In the embodiment more particularly described here, the two large flaps 60 have a width, transverse, equal or substantially equal to half the width of the closed body.

    Chaque grand rabat externe 60 comporte deux côtés latéraux terminés du côté de l'angle avec le bord périphérique parallèle avec la ligne de pliage 59, par une échancrure 62 de forme rectangulaire complémentaire à celle d'une demi-languette qui va être décrite ci-après.Each large external flap 60 has two sides side finished on the corner side with the edge parallel device with the fold line 59, by a notch 62 of rectangular shape complementary to that of a half tab which goes be described below.

    Les petits rabats 61 internes sont quant-à eux identiques et rectangulaires.The small internal 61 flaps are identical and rectangular.

    Le second ensemble 58 de rabats est relié aux quatre volets principaux par des troisièmes lignes de pliage 63 perpendiculaires aux premières lignes de pliage 56.The second set 58 of flaps is connected to the four main strands by third lines of folding 63 perpendicular to the first lines of folding 56.

    Il comporte deux grands rabats identiques 64 externes sensiblement rectangulaires. Chaque rabat externe 64 comporte deux côtés latéraux munis chacun d'une encoche 65 par exemple en forme de portion de cercle, à l'angle de jonction avec les lignes de pliage 63, de sorte que ladite ligne de pliage se termine par une portion libre de tout rabat sur une distance d, portion qui peut avantageusement se trouver un peu en dessous de ladite ligne, pour permettre un meilleur encastrement. It has two large identical flaps 64 substantially rectangular external. Each flap external 64 has two lateral sides each provided a notch 65 for example in the form of a portion of circle, at the junction angle with the lines of folding 63, so that said folding line is ends with a portion free of any flap on a distance d, portion which can advantageously be find a little below said line, for allow better embedding.

    Les bords des rabats 64 opposés aux troisièmes lignes de pliage comprennent par ailleurs deux demi-fentes 66 situées de part et d'autre des rabats, à une distance déterminée des bords latéraux desdits rabats.The edges of the flaps 64 opposite to the third fold lines also include two half-slots 66 located on either side of the flaps, at a determined distance from the lateral edges of said flaps.

    Chaque extrémité des demi-fentes est prolongée par une ligne sécable 67 sur une distance déterminée, dirigée en biais vers le coin d'angle du rabat avec la troisième ligne de pliage, pour aboutir à l'extrémité de la découpe 65, de jonction avec cette ligne de pliage.Each end of the half-slots is extended by a breakable line 67 over a determined distance, angled to the corner corner of the flap with the third fold line, leading to the end of the cutout 65, junction with this fold line.

    La largeur des rabats 64, entre les troisièmes lignes de pliage 63 et les bords périphériques est égale à la moitié de la largeur du couvercle de la caisse de sorte que, lorsqu'elle est formée, lesdits bords sont jointifs, les demi-fentes 66 venant en vis-à-vis pour former deux fentes identiques, parallèles, à cheval sur la jonction entre rabats.The width of the flaps 64, between the third fold lines 63 and the peripheral edges is equal to half the width of the cover of the body so that, when formed, said edges are joined, the half-slots 66 coming in opposite to form two identical slots, parallel, straddling the junction between flaps.

    Les petits rabats 68 sont quant-à eux rectangulaires, par exemple de même largeur que les grands rabats 64.The small flaps 68 are rectangular, for example the same width as the large flaps 64.

    Ils comportent chacun une languette 69 rectangulaire découpée d'un côté dans le rabat en ménageant sur la plus grande partie de sa périphérie, c'est-à-dire tout autour sauf sur une petite portion de part et d'autre au niveau de la ligne de pliage, un évidement périphérique 70, et reliée de l'autre côté au volet 53 ou 54 par une ligne de pliage 71 légèrement décalée vers l'intérieur du rabat, d'une épaisseur de carton par exemple, par rapport à la troisième ligne de pliage 63, qui se répartit de part et d'autre de ladite languette, centrée par rapport au rabat.They each have a tab 69 rectangular cut on one side in the flap sparing over most of its periphery, that is to say all around except on a small portion on both sides at the fold line, a peripheral recess 70, and connected to the other side to flap 53 or 54 by a fold line 71 slightly offset towards the inside of the flap, thickness of cardboard for example, compared to the third fold line 63, which is divided equally and other of said tab, centered relative to on the flap.

    Les petits rabats 68 comprennent sur chaque face latérale, au niveau de la jonction avec la ligne de pliage 63, une partie en saillie rectangulaire 72 agencée pour coopérer avec la partie évidée 65, de façon à venir reposer sur le bord supérieur de la paroi 51 ou 52 qui constitue ainsi un support pour la partie de rabat désolidarisable de la languette 69.Small flaps 68 include on each side lateral, at the junction with the line of folding 63, a rectangular projecting part 72 arranged to cooperate with the recessed part 65, way to come to rest on the top edge of the wall 51 or 52 which thus constitutes a support for the detachable flap part of the tongue 69.

    Enfin, il est prévu des lignes sécables 72', en biais, coupant les angles supérieurs des petits rabats, pour permettre un meilleur arrachage du couvercle.Finally, there are provided breakable lines 72 ′, in bias, cutting the top angles of the little ones flaps, to allow better removal of the lid.

    Les figures 6 à 10 montre la formation d'une caisse 73, constituée avec un flan du type correspondant à la figure 5.Figures 6 to 10 show the formation of a box 73, formed with a blank of the type corresponding to figure 5.

    Dans la suite, on utilisera les mêmes numéros de référence que pour le flan de la figure 5, pour désigner les mêmes éléments.In the following, we will use the same numbers reference only for the blank of Figure 5, for designate the same elements.

    Le fond 74 est formé de façon connue en elle-même, avec les évidements 75 selon l'invention, obtenus à partir des échancrures 62.The bottom 74 is formed in a manner known per se, with the recesses 75 according to the invention, obtained at from the notches 62.

    Le fond de la caisse étant formée et la caisse érigée autour d'un mandrin, on commence par rabattre les petits rabats internes 68, les languettes 69 se maintenant alors naturellement verticalement à l'aplomb des côtés latéraux 53 et 54 (cf. figures 6 et 7) en libérant les évidements correspondants 70'.The bottom of the body being formed and the body erected around a mandrel, we start by folding the small internal flaps 68, the tabs 69 are now then naturally vertically at plumb with the lateral sides 53 and 54 (cf. figures 6 and 7) by releasing the corresponding recesses 70 '.

    Les parties latérales 76 des rabats 68 ont été préalablement encollées, avec de la colle "Hot Melt" par exemple, par points ou lignes de colle 77, sur une portion suffisante pour permettre une bonne fixation des rabats entre eux, mais à l'intérieur du rabat interne par rapport aux lignes sécables 67 des rabats externes 64.The lateral parts 76 of the flaps 68 have been previously glued, with "Hot Melt" glue for example, by dots or lines of glue 77, on a sufficient portion to allow good fixing the flaps together, but inside the internal flap relative to the breakable lines 67 of external flaps 64.

    Les rabats internes ne s'enfoncent par ailleurs pas, les parties en saillie 72 venant en appui sur le bord supérieur des parois 54, empêchant de ce fait le plongement grâce à la contrepression ainsi exercée.The internal flaps do not sink further not, the projecting parts 72 coming to bear on the upper edge of the walls 54, thereby preventing dipping thanks to the back pressure thus exerted.

    Les rabats externes 64 sont ensuite rabattus (cf. figure 8) formant les fentes 78, et appliqués sur les rabats internes 68. Les lignes sécables 67 sont entièrement à l'extérieur des points et/ou lignes de collage 77, ce qui va autoriser un arrachage aisé du couvercle lorsque l'utilisateur tirera à partir des fentes 78.The outer flaps 64 are then folded down (cf. Figure 8) forming the slots 78, and applied to the internal flaps 68. The dividable lines 67 are entirely outside the points and / or lines of collage 77, which will allow easy tearing of the cover when user pulls from slots 78.

    Des lignes de collage 79 ont par ailleurs été préalablement prévues sur la face externe supérieure des rabats externes 64 au droit des languettes 69.Gluing lines 79 have also been previously provided on the upper external face external flaps 64 in line with the tabs 69.

    Enfin (cf. figure 9), les languettes 69 sont rabattues et collées sur la face supérieure des rabats externes 64 pour réaliser les moyens de centrage par languette selon l'invention.Finally (cf. FIG. 9), the tongues 69 are folded down and glued to the upper side of the external flaps 64 for making the means of centering by tab according to the invention.

    On a représenté sur la figure 10 une vue en perspective de la caisse 73 ainsi obtenue, avec ses coins 80 antiplongée, formés par les saillies 72 dans les encoches 65, et ses languettes 69 de centrage en excroissance, notamment avec un décalage en 81 pour mieux autoriser l'encastrement, comme précisé en référence aux figures 1 et 1A.FIG. 10 shows a view in perspective of the body 73 thus obtained, with its 80 anti-dive corners, formed by projections 72 in the notches 65, and its centering tabs 69 in outgrowth, especially with a shift in 81 for better authorize embedding, as specified in reference to Figures 1 and 1A.

    Pour ouvrir la caisse, extrêmement solide et rigide, il suffit de tirer selon les flèches 82, comme décrit ci-avant.To open the box, extremely solid and rigid, just pull according to the arrows 82, as described above.

    Les figures 11 et 12 montrent une variante de la caisse décrite en référence aux figures 5 à 10.Figures 11 and 12 show a variant of the body described with reference to Figures 5 to 10.

    Plus précisément, les figures 11 et 12 montrent une caisse 83 munie de languettes 84 découpées dans des rabats internes 85.More specifically, Figures 11 and 12 show a box 83 provided with tabs 84 cut from internal flaps 85.

    Chaque rabat interne 85 comporte sur ses bords latéraux 86, deux parties en saillie, rectangulaires, de 2 à 5 mm de largeur, à savoir une première partie en saillie 87 au coin de jonction avec la ligne de pliage 88, comme décrit en référence à la figure 5, et une seconde partie en saillie 89, d'extrémité, située au coin d'extrémité du rabat opposé aux lignes de pliage 88.Each internal flap 85 has on its edges lateral 86, two projecting parts, rectangular, from 2 to 5 mm in width, i.e. the first part protruding 87 at the junction with the line of folding 88, as described with reference to FIG. 5, and a second projecting part 89, at the end, located at the end corner of the flap opposite the lines folding 88.

    Chaque partie en saillie 87 et 89 est agencée pour reposer et s'encliquer dans un évidement 90 et 91 correspondant ménagé au niveau de la ligne de pliage 92 du rabat externe 93 avec le côté latéral de la caisse 94.Each protruding part 87 and 89 is arranged to rest and click into a recess 90 and 91 correspondent at the fold line 92 of the outer flap 93 with the lateral side of the box 94.

    Lorsque les rabats ont été successivement rabattus les uns sur les autres et collés comme décrit ci-avant, on obtient ainsi une caisse selon la figure 12 avec huit saillies antiplongée 95.When the flaps have been successively folded on top of each other and glued as described above, a box is thus obtained according to FIG. 12 with eight anti-dive projections 95.

    Ici encore la prise en sandwich des rabats externes entre rabats internes et languettes autorise un excellent équerrage et blocage de la caisse, qui se comporte comme un bloc rigide extrêmement solide.Here again the sandwiching of the flaps external between internal flaps and tabs allows excellent squaring and blocking of the body, which behaves like an extremely solid rigid block.

    La figure 13 montre un autre mode de réalisation de flan 96 selon l'invention pour caisse à huit côtés avec coins coupés.Figure 13 shows another embodiment blank 96 according to the invention for an eight-sided box with cut corners.

    Le flan 96 comprend quatre volets principaux 97 et quatre volets intermédiaires 98 propres à former les coins coupés de la caisse, lesdits volets intermédiaires étant dénués de rabats, la suite étant terminée par une languette de fixation propre à être fixée sur le volet intermédiaire 98 accolé au volet principal d'extrémité 97.The blank 96 comprises four main components 97 and four intermediate components 98 suitable for forming cut corners of the body, said flaps having no flaps, the rest being terminated by a fixing tab suitable for being fixed on the intermediate flap 98 attached to the flap main end 97.

    Les volets sont reliés entre eux par des premières lignes de pliage 99 parallèles.The shutters are interconnected by first 99 parallel fold lines.

    Ici encore, le flan comprend un premier ensemble de rabats destinés à former le fond et un second ensemble de rabats dont ceux avec languette 100 comme décrit en référence au flan de la figure 5.Here again, the blank includes a first set flaps intended to form the bottom and a second set of flaps including those with tab 100 as described with reference to the blank in Figure 5.

    Chaque rabat du second ensemble présente deux côtés latéraux ayant une première partie en biais à 45° vers l'extérieur du rabat à partir de deuxièmes lignes de pliage 101 qui sont alignées, ladite partie en biais étant agencée pour venir coiffer le volet intermédiaire adjacent lorsque la caisse est formée. Each flap of the second set has two lateral sides having a first bias portion at 45 ° towards the outside of the flap from second fold lines 101 which are aligned, said part at an angle being arranged to come over the shutter adjacent intermediary when the body is formed.

    Les grands rabats externes du premier ensemble comprennent également cette partie en biais et des échancrures d'extrémité 102 pour former les évidements du fond selon l'invention comme décrit en référence à la figure 5.The large external flaps of the first set also include this biased portion and end notches 102 to form the bottom recesses according to the invention as described in reference to figure 5.

    La figure 14 montre deux caisses 103, 103' selon un autre mode de réalisation de l'invention, comprenant quatre languettes 104 et quatre évidements 105' correspondants.Figure 14 shows two boxes 103, 103 'along another embodiment of the invention, comprising four tabs 104 and four recesses 105 'correspondents.

    Ici, deux languettes 104 sont prévues à chaque extrémité des grands rabats 106 qui sont ici internes, les petits rabats 107 étant pris en sandwich entre la partie restante, ajourée du grand rabat et les deux languettes en vis-à-vis des deux grands rabats, dont les bords 108 sont par ailleurs adjacents pour assurer une fermeture du couvercle.Here, two tabs 104 are provided at each end of the big flaps 106 which are here internal, the small flaps 107 being taken into sandwich between the remaining part, openwork of the large flap and the two tabs facing the two large flaps, the edges 108 of which are otherwise adjacent to close the lid.

    On a représenté sur la figure 15 le flan 109 permettant d'obtenir la caisse 103 de la figure 14.FIG. 15 shows the blank 109 to obtain the box 103 of Figure 14.

    Les languettes sont conçues de façon identique à ce qui a été décrit précédemment. Elles sont découpées dans les rabats 106 dits internes avec évidement périphérique 110, les rabats 107 externes étant simplement rectangulaires.The tabs are designed identically to which has been described previously. They are cut from the 106 internal flaps with peripheral recess 110, the flaps 107 external being simply rectangular.

    Les évidements sont quant-à eux pratiqués dans les rabats 111 rectangulaires de dimension identiques à celle des rabats 106, destinés à former le fond.The recesses are made in the 111 rectangular flaps identical in size to that of the flaps 106, intended to form the bottom.

    Les évidements ont des dimensions complémentaires aux languettes comme décrit précédemment. The recesses have complementary dimensions with the tabs as described above.

    Un des éléments importants dans plusieurs modes de réalisation de l'invention réside dans le décalage au niveau de la ligne de pliage des languettes, qui peut s'obtenir soit par un double pli, soit par un décalage de la ligne de pliage tout simplement, ce décalage étant toujours supérieur ou égal à l'épaisseur du carton, vers et à l'intérieur de la languette.One of the important elements in several modes of realization of the invention lies in the shift to level of the tongue fold line, which can be obtained either by a double fold or by a simply fold line offset, this offset always being greater than or equal to the thickness of the cardboard, towards and inside the tongue.

    Le décalage au niveau de la jonction des languettes et au niveau de l'évidement à l'aplomb, favorise considérablement l'encastrement et consolide donc encore la pile de caisses lors du gerbage.The offset at the junction of tabs and at the level of the recess plumb, considerably promotes embedding and consolidates so still the stack of boxes during stacking.

    De tels ajustements sont de plus possibles car les caisses peuvent être réalisées avec une précision suffisante, notamment parce qu'elles sont formées autour d'un mandrin.Such adjustments are also possible because the boxes can be made with precision sufficient, especially because they are formed around a mandrel.

    Comme il va de soi et comme il résulte d'ailleurs de ce qui précède, la présente invention n'est pas limitée aux modes de réalisation plus particulièrement décrits ici. Elle en embrasse au contraire toutes les variantes et notamment celles où elle comporte de plus une feuille de carton rapportée, de renforcement du fond pour éviter les trous ou orifices et celles où les bords de jonction entre rabats du fond sont en biais et non perpendiculaires par rapport au faces latérales en vis-à-vis et de façon centrée.As it goes without saying and as it results from elsewhere of the above, the present invention is not limited to more embodiments particularly described here. She embraces contrary all the variants and in particular those where it also has a sheet of cardboard reported, strengthening the bottom to avoid holes or holes and those where the joining edges between the bottom flaps are at an angle and not perpendicular to the side faces in opposite and centered.

    Claims (22)

    1. Box (1; 73; 83; 103, 103') made of corrugated cardboard sheet material or equivalent, having a polygonal section, comprising lateral faces (2, 3, 4, 5; 33, 35; 51, 52, 53, 54; 97, 98), an upper face (6) forming a lid and a lower face (7) forming the bottom of the box, said upper face having outgrowing portions projecting in relation to the outer surface of the upper face, and said bottom comprising hollowed-out portions, complementary in shape to the outgrowing portions and arranged so as to fit together with said outgrowing portions of a box arranged underneath, characterised
      in that the outgrowing portions are formed by at least two tabs (8, 9; 44; 69; 84; 104) located respectively on two opposite sides of said lid, cut out on one side either from a flap of the upper face, said upper face then being formed by the superimposition of flaps, or from the lateral face adjacent to said upper face, and articulated on the other side parallel and substantially indistinguishable from the line (11; 42; 63; 88) of joining between said upper face and the adjacent lateral face, said tabs being respectively folded down over the outer surface of said upper face to which they are stuck,
      and in that the hollowed-out portions are formed by at least two cutouts or by portions of indentations (13, 14; 38; 62; 102; 105) corresponding to said tabs, produced in said lower face, the overall shapes of which are complementary to the shapes of the tabs.
    2. Box according to Claim 1, characterised in that the lower face (7) and the lateral faces are formed at least partly by an open container (30), the lid of the box being constituted by a section (41) provided with at least one lateral flap (43), at least one tab (44) being cut out from said lateral flap, said tabs being turned over in order to be glued to said section (41) forming the upper face.
    3. Box according to Claim 1, characterised in that the lower face and the lateral faces are formed from a blank comprising a series of at least four main sections capable of forming the lateral faces, connected together by joining lines, each main section being provided with a lower flap, said lower flaps being capable of forming the bottom of the box, the lid of the box being constituted by a central section provided with at least one lateral flap, at least one tab being cut out from said lateral flap, said tabs being turned over in order to be glued to said central section forming the upper face.
    4. Box according to Claim 1, characterised in that it is formed from a blank comprising a series of at least four main sections capable of forming the lateral faces, connected to each other by joining lines, each main section being provided with an upper flap and a lower flap located respectively on either side of said main section, said upper flaps being capable of forming the lid of the box, said lower flaps being capable of forming the bottom of the box, the tabs are cut out from the lateral faces of the box and the cutouts are produced from the lower flaps.
    5. Box according to Claim 1, characterised in that it is formed from a blank (15) comprising a series of at least four main sections (2, 3, 4, 5) connected to each other by joining lines (17), each main section being provided with an upper flap (18', 18", 18"') and a lower flap (19', 19", 19"') located respectively on either side of said main section, said upper and lower flaps being capable of forming two side walls of the box, and in that the tabs (8, 9) are cut out from the lower (19") and upper (18") flaps of a first section (6) forming the lid, the cutouts being produced in a second section (7), not adjacent to said first section, forming the bottom of the box.
    6. Box according to Claim 1, characterised in that the bottom and the lid each comprise two opposite outer flaps (60, 64) and two opposite inner flaps (61, 68) located below said outer flaps, said flaps being connected respectively to the lateral faces by folding lines (59, 63),
      in that the two tabs (69; 100) are cut out on one side from the inner flaps, and articulated respectively, on the other side, parallel to the folding lines of said inner flaps, said outer flaps being stuck to the portions of inner flaps adjacent to the tabs, and said tabs overlapping respectively said outer flaps to which they are stuck.
    7. Box according to Claim 6, characterised in that the outer flaps comprise notches (65) at the angles of joining with the folding lines and in that the inner flaps comprise projecting portions (72) clicking into said notches.
    8. Box according to any one of Claims 6 and 7, characterised in that the outer flaps comprise intermediate notches (91), located on the folding lines (92) and in that the inner flaps comprise projecting end portions (89) facing each other, clicking into said intermediate notches.
    9. Box according to any one of the preceding claims, characterised in that it comprises four tabs (104), opposite in pairs, stuck to the outer surface of the upper face forming a lid of the box, and four cutouts (105) facing each other, in the lower face of the box.
    10. Box according to any one of the preceding claims, characterised in that the tabs are cut out by providing, around said tabs, a peripheral cutout (22, 45, 70, 110).
    11. Box according to any one of the preceding claims, characterised in that each tab has the shape of a rectangle or isosceles trapezoid.
    12. Box according to any one of the preceding claims, characterised in that the lid comprises two slots (66, 78) respectively on either side of the lid, parallel to and at a specific distance away from the joining lines (63, 81) between the lateral face and the upper face provided with glued tabs (69), the ends of said slots being connected, by breaking lines (67), to the end corners joining to said joining lines, capable of allowing the box to be opened by tearing said lid by pulling towards the outside of the box from the two slots.
    13. Box according to any one of the preceding claims, characterised in that it is eight-sided, i.e. it has four main sides (97) separated by intermediate sides (98) forming cut corners, and in that it is formed around a mandrel.
    14. Blank (15; 50; 96) or set of blanks (31, 40) made of corrugated cardboard sheet material or equivalent intended to form a box with polygonal section comprising lateral faces (2, 3, 4, 5; 33, 35; 51, 52, 53, 54; 97, 98), an upper face (6) forming a lid and a lower face (7) forming the bottom of the box, said blank or set of blanks comprising
      a first blank or a first portion of blank intended to form the lid of the box, said first blank or said first portion of blank comprising a section (6; 41) provided with at least one lateral flap (18", 19"; 43), or comprising two flaps known as upper (68, 106), said section or the two upper flaps being intended to form said upper face, and
      a second blank (31) or a second portion of blank capable of constituting the bottom of the box, comprising a lower section (7, 32) or comprising at least two lower flaps (60; 111), said lower section or said two lower flaps being capable of forming the lower face of the box, characterised
      in that said lateral flap (18", 19"; 43) or said upper flaps (68, 106) each comprise at least one tab (8, 9; 44, 69; 84; 104) cut out on one side from said flap, and connected on the other side to the upper face or to the adjacent section by a folding line (12; 46) slightly offset relative to the line (11; 42) of folding between said flap and said adjacent section,
      said tabs being arranged so as to overlap respectively the upper face (6) in order to be stuck thereto,
      and in that said lower section (7, 32) or said lower flaps (60, 111) comprise cutouts (13, 14; 38; 105) or portions of indentations (62, 102), the overall shape of which is complementary to that of a tab once the box is formed.
    15. Blank or set of blanks according to Claim 14, characterised in that it comprises a first blank or a first portion of blank intended to form the lid of the box comprising a section (6, 41) provided with lateral flaps, at least one tab (8, 9, 44) being cut out from at least one of said lateral flaps and arranged so as to be turned over and stuck to said section forming the upper face,
      and a second blank (31) or a second portion of blank intended to form the bottom of the box, comprising a central rectangular section (7, 32) provided on each of its sides with a first flap supplemented in some cases with second lateral flaps and capable of forming the side walls of the box, said central section comprising at least two cutouts (13, 14; 38) located facing each other along the line (24, 34) joining to the first flaps, said cutouts being complementary in shape to the shape of the tabs and arranged so as to be in a vertical relationship with said tabs when the box is formed.
    16. Blank according to Claim 14, characterised in that it comprises a series of at least four main sections (2, 4, 6, 7) connected together by joining lines (17), each main section being provided respectively on either side with an upper flap and a lower flap, a first main section (6) being capable of forming the lid of the box, and a second main section (7), not adjacent to the first main section, being capable of forming the bottom of the box, and in that the tabs (8, 9) are cut out from the lower (19") and upper (18") flaps of said first main section, the cutouts (13, 14) being produced in the second main section (7).
    17. Blank according to Claim 14, characterised in that it comprises a series of lateral sections (51, 52, 53, 54; 97, 98) connected together via parallel first folding lines (56, 99), a first set of flaps connected to one side of said lateral sections by second folding lines (59) orthogonal to said first folding lines, capable of forming the bottom of the box, and a second set of flaps connected to the other side of said lateral sections by third folding lines (63) orthogonal to said first folding lines, capable of forming the lid of the box, said first and second sets being constituted by two lateral flaps known as (60, 64) interleaved with two lateral flaps (61, 68) known as inner, characterised in that
      said inner flaps of the lid each comprise a tab (69, 100) cut out on one side from said inner flap, and connected on the other side to the adjacent section by a folding line substantially indistinguishable from the third folding line of said flap,
      said outer flaps being arranged so as to be stuck onto the portions of inner flaps adjacent to the tabs, and onto said tabs, in order to overlap respectively said outer flaps to which they are stuck,
      and in that the lateral sides of the outer flaps of the bottom comprise indentations (62, 102) complementary in shape to that of a half-tab.
    18. Blank according to Claim 17, characterised in that the peripheral edges of the outer flaps opposite the third folding lines comprise respectively two half-slots (66) located on either side of said outer flaps, at a specific distance away from the lateral edges of said corresponding flaps.
    19. Blank or set of blanks according to any one of Claims 15 and 16, characterised in that it comprises two slots (78) facing each other, produced in the section intended to form the lid of the box.
    20. Blank or set of blanks according to any one of Claims 18 and 19, characterised in that each end of slot or half-slot is extended by a cuttable line (67) in said lid over a specific distance, said cuttable line pointing obliquely towards the angle corner of the line joining to the adjacent lateral face and contiguous to a tab (69) and being arranged so as to be located towards the centre of the lid and beyond the corresponding edge of said tab and the gluing points of the lid, when said box is formed.
    21. Blank according to any one of Claims 14 to 20, characterised in that each tab is shaped as a rectangle or isosceles trapezoid.
    22. Blank according to any one of Claims 14 to 21, characterised in that the tabs are cut out while producing, around said tabs, a peripheral cutout (22, 45, 70, 110).
    EP97953003A 1996-12-27 1997-12-23 Case made of sheet material with centring tabs and blank for producing same Expired - Lifetime EP0944531B1 (en)

    Applications Claiming Priority (3)

    Application Number Priority Date Filing Date Title
    FR9616138 1996-12-27
    FR9616138A FR2757833B1 (en) 1996-12-27 1996-12-27 SHEET MATERIAL BOX WITH CENTERING TABS AND BLANK FOR THE REALIZATION OF SUCH A BOX
    PCT/FR1997/002410 WO1998029316A1 (en) 1996-12-27 1997-12-23 Case made of sheet material with centring tabs and blank for producing same

    Publications (2)

    Publication Number Publication Date
    EP0944531A1 EP0944531A1 (en) 1999-09-29
    EP0944531B1 true EP0944531B1 (en) 2000-08-23

    Family

    ID=9499237

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP97953003A Expired - Lifetime EP0944531B1 (en) 1996-12-27 1997-12-23 Case made of sheet material with centring tabs and blank for producing same

    Country Status (11)

    Country Link
    US (1) US6257411B1 (en)
    EP (1) EP0944531B1 (en)
    JP (1) JP3890084B2 (en)
    AT (1) ATE195694T1 (en)
    AU (1) AU5669698A (en)
    CA (1) CA2275941A1 (en)
    DE (1) DE69702930T2 (en)
    FR (1) FR2757833B1 (en)
    NZ (1) NZ336911A (en)
    PL (1) PL334291A1 (en)
    WO (1) WO1998029316A1 (en)

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    Also Published As

    Publication number Publication date
    PL334291A1 (en) 2000-02-14
    US6257411B1 (en) 2001-07-10
    JP3890084B2 (en) 2007-03-07
    FR2757833B1 (en) 1999-03-26
    EP0944531A1 (en) 1999-09-29
    JP2001507317A (en) 2001-06-05
    DE69702930D1 (en) 2000-09-28
    NZ336911A (en) 2000-01-28
    ATE195694T1 (en) 2000-09-15
    FR2757833A1 (en) 1998-07-03
    CA2275941A1 (en) 1998-07-09
    DE69702930T2 (en) 2001-03-29
    WO1998029316A1 (en) 1998-07-09
    AU5669698A (en) 1998-07-31

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