EP0729428B1 - Crate made of sheet material and provided with a lockable lid, and blank for producing same - Google Patents
Crate made of sheet material and provided with a lockable lid, and blank for producing same Download PDFInfo
- Publication number
- EP0729428B1 EP0729428B1 EP95902157A EP95902157A EP0729428B1 EP 0729428 B1 EP0729428 B1 EP 0729428B1 EP 95902157 A EP95902157 A EP 95902157A EP 95902157 A EP95902157 A EP 95902157A EP 0729428 B1 EP0729428 B1 EP 0729428B1
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- EP
- European Patent Office
- Prior art keywords
- flaps
- tab
- flap
- line
- folding lines
- 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.)
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Classifications
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- 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
- B65D5/02—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body
- B65D5/10—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body with end closures formed by inward-folding of self-locking flaps hinged to tubular body
Definitions
- the present invention aims to provide a box and a flan responding better than those previously known to requirements of the practice in particular in that it offers a lid locking system allowing good squaring the box when it is closed, simple and easy to implement, at no additional cost, and authorizing successive locks and unlocks cover, easy, reliable and reproducible.
- the invention notably proposes a box of material made of corrugated cardboard sheet or equivalent having a polygonal section, said box being of the type mentioned above, characterized in that the end of each tab is in the shape of a point and is arranged to come into abutment from below with the peripheral edge the corresponding slot located on the side opposite to the fold line of said tongue, over a distance h less than or equal to around 5mm.
- Figure 1 shows a blank 1 comprising a series of eight side flaps, namely four flaps main including two large shutters 2 and 3 interspersed with two small parts 4 and 5, and four parts intermediaries 6 suitable for forming the cut corners of the body, said intermediate flaps being respectively between a large flap and a small flap when the fund is formed.
- shutters are finished on one side, in the embodiment more particularly described here, by a tab 7 suitable for being fixed on the intermediate flap 6 attached to the flap main 2 located on the other side of the suite flaps relative to said tongue.
- Shutters are interconnected by the first lines of parallel folding 8.
- the blank includes a first set of flaps 9 located on one side of the flaps and intended to form the bottom of the box, and a second set 10 of flaps located on the other side of the shutters and intended to form the cover of the box.
- the first set 9 includes four substantially rectangular flaps connected to the lateral sides of the four flaps main by fold lines 11, perpendicular to the first fold lines, at know two large flaps 12 and 13, connected to the large flaps 2 and 3, and two small flaps 14 and 15, connected with small flaps 4 and 5.
- the intermediate flaps 6 are devoid of flaps.
- the two large flaps 12 and 13 have a width, in the direction transverse, equal to or substantially equal to half the width of the box formed.
- the large flaps 12 and 13 are identical. Each large flap has three sides 12.1, 12.2 and 12.3, (13.1, 13.2 and 13.3) namely two sides side 12.1 and 12.3 (13.1 and 13.3) located on the side on either side of said flap and one side 12.2 (13.2) parallel and opposite to the second fold line 11 of the flap with the corresponding flap.
- Each lateral side of the large flap comprises a first part at an angle of 45 ° to the outside of the flap from the second fold lines, arranged to cover the adjacent intermediate flap when the body is formed, said first part being extended by a second part perpendicular to said second fold lines, said lateral side ending at the angle with the peripheral edge by a notch 16 having a first recess 17, towards the inside of the flap, for example rounded, and a second recess 18, always directed towards the inside of the flap, for example at a right angle, the length of the peripheral edge 12.2; 13.2 on the parallel side between upper ends 16 ′ of the notches being L.
- the small flaps 14 and 15 are identical and rectangular, in the mode of realization more particularly described here. Their lateral sides are also located at a distance lateral sides of the corresponding large flaps, for example a few millimeters.
- the second set 10 of flaps is connected to the four main strands by third lines of folding 19, 20 and 21 perpendicular to the first fold lines 8. More precisely the second set has two large flaps 22 and 23 connected respectively to the large shutters by the lines of folding 19, and two small flaps 24 and 25 connected respectively to the small shutters by the lines of folding 20 and 21, as will be described more specifically below.
- Large flaps 22 and 23 each include three sides respectively 22.1, 22.2 and 22.3 and 23.1, 23.2 and 23.3, namely two lateral sides [22.1 and 22.3; 23.1 and 23.3] and a parallel side and opposite the third fold lines [22.2 and 23.2].
- Each lateral side includes a first angled at 45 ° outwards from third fold lines arranged to come styling the corresponding intermediate flaps when the body is formed, a second part perpendicular to the third lines and part end 26 beveled towards the inside of the flap.
- the peripheral edges of the sides 22.2 and 23.2 moreover respectively comprise two identical rectangular or substantially rectangular slots 27 and 28, perpendicular to said edges, located on either side of the flap at a determined distance d from the lateral edges 22.1 and 22.3 d ' on the one hand, 23.1 and 23.3 on the other hand, of length x / 2 and of width e, for example from 3 to 5 mm.
- the width l of the flaps 22 and 23, between the fold lines 19 and the peripheral edges 22.2 and 23.2, is equal to half the width of the cover of the box, so that, when the latter is formed, said edges are joined, the slots 27 and 28 of the flap 22 facing the corresponding slots 27 and 28 of the flap 23, to form two identical parallel slots straddling the junction between flaps.
- the small flaps 24 and 25 are rectangular, for example of the same width l as the large flaps 22 and 23. They each have a tongue 29 cut on one side in the flap and connected on the other side to the flap 4 or 5 by a fold line 21 slightly offset towards the inside of the flap, for example by 1 or 2 mm relative to the fold line 20, which is distributed on either side of said tongue centered relative to the Rabat.
- the tongue has an end 30 shaped tip, for example forming an obtuse vertex angle of the order of 160 or 170 °, the distance between the fold line 21 and the end of the tip 30 being of, with of slightly greater than d for example greater than two to three millimeters to d.
- the tongue also has a shape in T complementary to that of two notches 16 symmetrically joined.
- Figures 2 to 5 show the formation of a box 31 with cut corners 32, formed with a blank of the type shown in Figure 1.
- Box 31 has side faces main 33, a bottom 34 and a cover 35, comprising two opposite upper flaps 36 identical and two opposite lower flaps identical 37, connected respectively to the faces side by fold lines 38 and 39.
- Figures 4 and 5 show more precisely the cover of the box which comprises two slots 40 formed in the upper flaps respectively on either side of the cover, parallel to, and at the distance d from, fold lines 39 of the lower flaps 37, with the faces to which they are connected.
- Lid also includes two tabs 41, cut on one side in said flaps lower 37, and articulated on the other side respectively with respect to the lateral face corresponding to said flap 37, around lines of folding 42 parallel and slightly above the fold lines 39 of lower flaps 37.
- the tabs cover the flaps superiors, who themselves cover the part complementary to the cutting of the flap tabs lower, the end 43 of said tabs snapping into the slots 40.
- the bottom of the body has two small interior flaps 44 and two large flaps external 45 respectively connected to the faces corresponding sides by fold lines 46 and 47.
- the bottom includes two recesses 48, of shape complementary to that of the tabs, so that when stacking boxes on top of each other others, the tabs fit into the recesses of an upper box, which allows a lateral locking of the boxes against each other other.
- FIG. 6 Another mode has been represented in FIG. 6. for producing a blank 50 according to the invention.
- the blank 50 here comprises only four flaps 51, and a bonding tab 52 end, to form a box cuboid.
- the flaps 53 forming the cover are here same width, two of said flaps include tabs 54, of substantially rectangular shape the end of which is adapted to cooperate with the half-slots 55 which, when joined, form the slots of the cover as described above.
- the flaps 56 forming the bottom of the box are, for example, devoid of indentations here, and are classic type, for American box.
- the side walls of the body are formed by winding around a mandrel, the flaps interior of the bottom being first folded. Then the outer flaps are in turn folded over the interior flaps, as shown in Figure 2.
- Figure 7 shows a blank 60 of corrugated cardboard double-sided, for example very thick (higher at 5mm) according to another embodiment of the invention, comprising four side flaps rectangular 61, 62, 63 and 64 connected two by two by fold lines 65 parallel to each other.
- the blank is finished laterally, on one side, by a bonding tab 66 and comprises, in the transverse direction, on one side, a first set 67 of four flaps connected respectively to one side of each side flap by second lines of folding 68 perpendicular to the first and intended for form the bottom of the body, and, on the other side, a second set 69 of four flaps connected to the side opposite of said flaps by third lines of folding 70, and intended to form the cover of the checkout.
- Set 69 consists of two flaps lateral 71 and 72 rectangular, called flaps upper, interspersed with two side flaps 73 and 74, called lower flaps.
- the lower flaps are for example trapezoidal, isosceles, including angle at base ⁇ between around 88 ° and around 70 °.
- Each tongue comprises a lower part in the form of an isosceles trapezium advantageously of height d 0 and of angle at the base ⁇ (long side of the trapezoid), said base being coincident or substantially coincident with the fold line 70.
- the angle ⁇ is for example between about 85 ° and about 60 °, for example equal to 80 °.
- the tongue is terminated by a triangular end portion 76, with an obtuse apex angle for example equal to around 160 ° and of low height i , for example equal to 2mm.
- the upper flaps 71 and 72 comprise, for their part, and starting from their peripheral edge 77 opposite the fold lines 70, a rectangular half-slot 78, perpendicular to said peripheral edge 77 and whose internal edge 79 (directed towards the center of the flap) is located at a distance equal to or substantially equal to d 0 , from the nearest adjacent lateral edge 79 of the flap, perpendicular to the peripheral edge 77 of said flap.
- Each half-slot 78 ends with a cut or breakable line 80, directed at an angle towards the adjacent edge 79 and the fold line 70, over a determined length l for example equal to around 1 to 2 cm.
- the assembly 67 intended to form the bottom of the body includes two flaps 81 and 82 substantially rectangular, inserted two by two with two isosceles trapezoidal flaps 83 and 84.
- the flaps 81 and 82 each have an edge outdoor device 85 in two parts for example equal, parallel to the second fold lines 68, said edge being provided with a recess between its two parts.
- Each end of the flaps 81 and 82 includes '' also a hollow part 87 or 88 of shape complementary to that of a half-tab, as we saw it previously.
- cut lines 80 facilitates openings and closings successive cases of the fund 89.
- the release of the tongue 75 is produced by pressing the upper flaps 71 and 72 adjacent to the tongue, or by pushing in the middle of the crate cover, allowing the tongue whose end is hardly engaged under the upper flaps beyond the slot 90 constituted by the two half-slots 78, to free themselves automatically with good elasticity, the part internal 91 of the upper flaps, bounded by lines 80, acting as a return spring.
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Description
La présente invention concerne une caisse de matière en feuille de carton ondulé ou équivalent, présentant une section polygonale, du type comportant des faces latérales, un fond et un couvercle comprenant deux rabats supérieurs opposés et deux rabats inférieurs opposés situés en dessous desdits rabats supérieurs, lesdits rabats étant reliés respectivement aux faces latérales par des lignes de pliage, le couvercle comprenant :
- deux fentes formées dans les rabats supérieurs, respectivement de part et d'autre du couvercle parallèlement et à une distance d des lignes de pliage des rabats inférieurs, et
- deux languettes découpées respectivement d'un côté dans les rabats inférieurs, et articulées respectivement de l'autre côté parallèlement aux lignes de pliage desdits rabats inférieurs, recouvrant respectivement lesdits rabats supérieurs et agencées pour que leurs extrémités pénètrent respectivement dans les fentes correspondantes du couvercle.
- two slots formed in the upper flaps, respectively on either side of the cover parallel to and at a distance d from the fold lines of the lower flaps, and
- two tabs cut respectively on one side in the lower flaps, and articulated respectively on the other side parallel to the fold lines of said lower flaps, respectively covering said upper flaps and arranged so that their ends penetrate respectively into the corresponding slots of the cover.
Elle concerne également un flan pour la réalisation d'une telle caisse. Elle trouve une application particulièrement importante bien que non exclusive dans le domaine des caisses polygonales à plus de quatre côtés, par exemple à huit côtés dont quatre coins coupés, qui peuvent présenter lorsque elles ne sont pas entièrement remplies, des déformations en cas de sollicitations latérales.It also concerns a blank for the creation of such a fund. She finds a particularly important application although not exclusive in the field of polygonal boxes with more than four sides, for example eight sides of which four cut corners, which can show when they are not completely filled, deformations in the event of lateral stresses.
On connaít déjà 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 bande adhésive.We already know locking systems allowing to block a box cover, which then avoids these untimely deformations. It's about in particular locking by adhesive strip.
De tels systèmes présentent cependant des inconvénients. Ils nécessitent en effet un élément constitutif supplémentaire de la caisse, à savoir la bande adhésive, et entraínent de ce fait des coûts et des opérations supplémentaires lors de la fabrication.However, such systems have drawbacks. They indeed require a constituent element additional of the body, namely the adhesive strip, and thereby entail costs and operations additional during manufacturing.
On connait également (US-A-3.302.853) une caisse du type ci-dessus définie, mais qui présente ici encore des inconvénients. Le verrouillage des languettes s'effectue en effet par accrochage de leur extrémité élargie dans les fentes correspondantes, ce qui autorise un blocage efficace du couvercle en position fermée, mais rend la réouverture de la caisse difficile, par exemple pour réaliser un étiquetage du contenu ou pour rajouter des pièces au contenu de la caisse préalablement fermée une première fois.We also know (US-A-3,302,853) a case of type defined above, but which again presents disadvantages. The tabs are locked in fact by hooking their widened end in the corresponding slots, which allows effective blocking of the cover in the closed position, but makes the reopening difficult body, for example to make a content labeling or to add parts to the contents of the box previously closed for the first time.
On connaít aussi (FR-A-1 083 621 ; US-A-2 167 917) des systèmes de verrouillage à languettes se bloquant par excroissance latérale ou transversale sous le bord de fentes, situé en vis à vis. Ici encore, de tels systèmes présentent l'inconvénient d'entraíner la réouverture difficile, voire impossible de la caisse une fois verrouillée.We also know (FR-A-1 083 621; US-A-2 167 917) tab locking systems locking by lateral or transverse protrusion under the edge of slots, located opposite. Again, such systems have the disadvantage of causing reopening difficult if not impossible to checkout once locked.
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 système de verrouillage du couvercle permettant un bon équerrage de la caisse lors de sa fermeture, simple et aisé à mettre en oeuvre, sans coûts additionnels, et autorisant des verrouillages et déverrouillages successifs du couvercle, faciles, fiables et reproductibles.The present invention aims to provide a box and a flan responding better than those previously known to requirements of the practice in particular in that it offers a lid locking system allowing good squaring the box when it is closed, simple and easy to implement, at no additional cost, and authorizing successive locks and unlocks cover, easy, reliable and reproducible.
Dans ce but l'invention propose notamment une caisse de matière en feuille de carton ondulé ou équivalent présentant une section polygonale, ladite caisse étant du type ci-dessus mentionné, caractérisée en ce que l'extrémité de chaque languette est en forme de pointe et est agencée pour venir en butée par en dessous avec le bord périphérique la fente correspondante situé du coté opposé à la ligne de pliage de ladite languette, sur une distance h inférieure ou égale à de l'ordre de 5mm.To this end, the invention notably proposes a box of material made of corrugated cardboard sheet or equivalent having a polygonal section, said box being of the type mentioned above, characterized in that the end of each tab is in the shape of a point and is arranged to come into abutment from below with the peripheral edge the corresponding slot located on the side opposite to the fold line of said tongue, over a distance h less than or equal to around 5mm.
Dans des modes de réalisation avantageux on a de plus recours à l'une et/ou à l'autre des dispositions suivantes :
- h est inférieure ou égale à de l'ordre de 2mm ;
- chaque fente est constituée de deux demi-fentes respectivement réalisées en vis à vis dans les bords périphériques des rabats supérieurs, les languettes étant centrées latéralement par rapport aux rabats inférieurs correspondants ;
- chaque demi-fente est prolongée à sa portion d'extrémité située du coté opposé à l'autre demi-fente en vis à vis, par une ligne sécable ou découpée dans le rabat supérieur correspondant, ladite ligne sécable ou découpée étant dirigée vers la ligne de pliage du rabat inférieur de la languette correspondant à ladite demi-fente sur une distance déterminée, et étant située au droit du bord correspondant de ladite languette.
- h is less than or equal to around 2mm;
- each slot consists of two half-slots respectively made opposite one another in the peripheral edges of the upper flaps, the tongues being centered laterally with respect to the corresponding lower flaps;
- each half-slot is extended to its end portion located on the side opposite the other half-slot opposite, by a line which can be cut or cut in the corresponding upper flap, said breakable or cut line being directed towards the line folding the lower flap of the tongue corresponding to said half-slot over a determined distance, and being located to the right of the corresponding edge of said tongue.
Une telle disposition permet un bon fonctionnement du système lors des verrouillages et déverrouillages successifs, en autorisant une plus grande élasticité de la charnière constituée par la ligne de pliage de la languette.
- chaque languette présente sensiblement une forme de T dont la barre transversale est reliée à la ligne de pliage de la languette par rapport à la face correspondante ;
- chaque languette présente une forme rectangulaire ou trapézoïdale isocèle se terminant par une partie d'extrémité triangulaire d'angle obtu au sommet.
- le fond est constitué de rabats reliés respectivement aux faces latérales par des lignes de pliage, à savoir deux rabats intérieurs opposés et deux rabats extérieurs opposés et comprend deux parties évidées dans lesdits rabats extérieurs, de forme complémentaire à celle des languettes.
- each tongue has a substantially T-shape, the cross bar of which is connected to the fold line of the tongue with respect to the corresponding face;
- each tongue has a rectangular or isosceles trapezoidal shape ending in a triangular end part with an obtuse angle at the top.
- the bottom consists of flaps connected respectively to the lateral faces by fold lines, namely two opposite inner flaps and two opposite outer flaps and comprises two recessed parts in said outer flaps, of shape complementary to that of the tongues.
L'invention concerne également un flan de matière en feuille de carton ondulé ou équivalent destiné à former une caisse à section polygonale, comportant :
- 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, propre à former le couvercle de la caisse, ledit ensemble étant constitué de deux rabats latéraux dits supérieurs intercalés avec deux rabats latéraux dits inférieurs,
les bords périphériques des rabats supérieurs opposés aux troisièmes lignes de pliage comprennant respectivement deux portions de fentes situées de part et d'autre desdits rabats supérieurs, à une distance déterminée d des bords latéraux desdits rabats correspondants,
caractérisé en ce que l'extrémité des languettes est en forme de pointe et la longueur desdites languettes d', entre l'extrémité de la pointe et la ligne de pliage de la languette avec le volet auquel elle est reliée, est un peu supérieure à ladite distance d.The invention also relates to a blank of material of corrugated cardboard sheet or equivalent intended to form a box with polygonal section, comprising:
- side flaps connected to each other by means of first parallel fold lines,
- a first set of flaps connected to one side of said lateral 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 set consisting of two so-called upper side flaps interposed with two flaps so-called lower sides,
the peripheral edges of the upper flaps opposite the third fold lines comprising respectively two portions of slots situated on either side of said upper flaps, at a determined distance d from the lateral edges of said corresponding flaps,
characterized in that the end of the tabs is shaped tip and the length of said tabs d ', between the end of the point and the folding line of the tab with the flap to which it is connected, is slightly greater than said distance d .
L'invention sera mieux comprise à la lecture de la description qui suit de modes de réalisation donnés à titre d'exemple non limitatif. Elle se réfère aux dessins qui l'accompagnent dans lesquels :
- La figure 1 est une vue en plan d'un flan selon un mode de réalisation de l'invention.
- Les figures 2 à 5 montrent les étapes de formation et de verrouillage du couvercle d'une caisse constituée à partir d'un flan du type de celui décrit en référence à la figure 1.
- La figure 6 est une vue en plan d'un autre mode de réalisation d'un flan selon l'invention.
- La figure 7 est une vue en plan d'un flan selon un autre mode de réalisation de l'invention.
- La figure 8 montre deux vues en perspective, partielles, de la languette de verrouillage du couvercle obtenu avec le flan de la figure 7, en position verrouillée, et lorsqu'elle se libère de façon élastique par simple pression sur le couvercle.
- Figure 1 is a plan view of a blank according to an embodiment of the invention.
- FIGS. 2 to 5 show the steps for forming and locking the lid of a box formed from a blank of the type described with reference to FIG. 1.
- Figure 6 is a plan view of another embodiment of a blank according to the invention.
- Figure 7 is a plan view of a blank according to another embodiment of the invention.
- Figure 8 shows two partial perspective views of the locking tab of the cover obtained with the blank of Figure 7, in the locked position, and when it is released elastically by simple pressure on the cover.
La figure 1 montre un flan 1 comprenant une
suite de huit volets latéraux, à savoir quatre volets
principaux dont deux grands volets 2 et 3 intercalés
avec deux petits volets 4 et 5, et quatre volets
intermédiaires 6 propres à former les coins coupés de
la caisse, lesdits volets intermédiaires étant
respectivement entre un grand volet et un petit volet
lorsque la caisse est formée.Figure 1 shows a blank 1 comprising a
series of eight side flaps, namely four flaps
main including two
La suite des volets est terminée d'un côté,
dans le mode de réalisation plus particulièrement
décrit ici, par une languette 7 propre à être fixée
sur le volet intermédiaire 6 accolé au volet
principal 2 situé de l'autre côté de la suite de
volets par rapport à ladite languette. Les volets
sont reliés entre eux par des premières lignes de
pliage parallèles 8.The continuation of the shutters is finished on one side,
in the embodiment more particularly
described here, by a tab 7 suitable for being fixed
on the
Le flan comprend un premier ensemble de rabats
9 situé d'un côté des volets et destiné à former le
fond de la caisse, et un second ensemble 10 de rabats
situé de l'autre côté des volets et destiné à former
le couvercle de la caisse.The blank includes a first set of
Plus précisément, le premier ensemble 9
comprend quatre rabats sensiblement rectangulaires
reliés aux côtés latéraux des quatre volets
principaux par des lignes de pliage 11,
perpendiculaires aux premières lignes de pliage, à
savoir deux grands rabats 12 et 13, reliés aux grands
volets 2 et 3, et deux petits rabats 14 et 15, reliés
aux petits volets 4 et 5.Specifically, the
Les volets intermédiaires 6 sont quant à eux
dépourvus de rabats.The
Dans le mode de réalisation plus
particulièrement décrit ici, les deux grands rabats
12 et 13 présentent une largeur, dans le sens
transversal, égale ou sensiblement égale à la moitié
de la largeur de la caisse formée.In the more embodiment
particularly described here, the two
Les grands rabats 12 et 13 sont identiques.
Chaque grand rabat comprend trois côtés 12.1, 12.2 et
12.3, (13.1, 13.2 et 13.3) à savoir deux côtés
latéraux 12.1 et 12.3 (13.1 et 13.3) situés de part
et d'autre dudit rabat et un côté 12.2 (13.2)
parallèle et opposé à la deuxième ligne de pliage 11
du rabat avec le volet correspondant.The
Chaque côté latéral de grand rabat comprend une
première partie en biais à 45° vers l'extérieur du
rabat à partir des deuxièmes lignes de pliage,
agencée pour venir coiffer le volet intermédiaire
adjacent lorsque la caisse est formée, ladite
première partie étant prolongée par une deuxième
partie perpendiculaire auxdites deuxièmes lignes de
pliage, ledit côté latéral se terminant à l'angle
avec le bord périphérique par une échancrure 16
présentant un premier décrochement 17, vers
l'intérieur du rabat, par exemple arrondi, et un
deuxième décrochement 18, toujours dirigé vers
l'intérieur du rabat, par exemple à angle droit, la
longueur du bord périphérique 12.2 ; 13.2 du côté
parallèle entre extrémités supérieures 16' des
échancrures étant L.Each lateral side of the large flap comprises a first part at an angle of 45 ° to the outside of the flap from the second fold lines, arranged to cover the adjacent intermediate flap when the body is formed, said first part being extended by a second part perpendicular to said second fold lines, said lateral side ending at the angle with the peripheral edge by a
Les petits rabats 14 et 15 sont quant à eux identiques et rectangulaires, dans le mode de réalisation plus particulièrement décrit ici. Leurs côtés latéraux sont par ailleurs situés à distance des côtés latéraux des grands volets correspondants, par exemple à quelques millimètres.The small flaps 14 and 15 are identical and rectangular, in the mode of realization more particularly described here. Their lateral sides are also located at a distance lateral sides of the corresponding large flaps, for example a few millimeters.
Le second ensemble 10 de rabats est relié aux
quatre volets principaux par des troisièmes lignes de
pliage 19, 20 et 21 perpendiculaires aux premières
lignes de pliage 8. Plus précisément le second
ensemble comporte deux grands rabats 22 et 23 reliés
respectivement aux grands volets par les lignes de
pliage 19, et deux petits rabats 24 et 25 reliés
respectivement aux petits volets par les lignes de
pliage 20 et 21, comme cela va être décrit plus
précisément ci-après.The second set 10 of flaps is connected to the
four main strands by third lines of
folding 19, 20 and 21 perpendicular to the first
fold lines 8. More precisely the second
set has two
Les grands rabats 22 et 23 comprennent chacun
trois côtés respectivement 22.1, 22.2 et 22.3 et
23.1, 23.2 et 23.3, à savoir deux côtés latéraux
[22.1 et 22.3 ; 23.1 et 23.3] et un côté parallèle et
opposé aux troisièmes lignes de pliage [22.2 et
23.2].
Chaque côté latéral comprend une première partie en biais à 45° vers l'extérieur à partir des troisièmes lignes de pliage agencée pour venir coiffer les volets intermédiaires correspondants lorsque la caisse est formée, une deuxième partie perpendiculaire aux troisième lignes et une partie d'extrémité 26 en biseau vers l'intérieur du rabat.Each lateral side includes a first angled at 45 ° outwards from third fold lines arranged to come styling the corresponding intermediate flaps when the body is formed, a second part perpendicular to the third lines and part end 26 beveled towards the inside of the flap.
Les bords périphériques des côtés 22.2 et 23.2,
comprennent par ailleurs respectivement deux fentes
identiques rectangulaires ou sensiblement
rectangulaires 27 et 28, perpendiculaires auxdits
bords, situées de part et d'autres du rabat à une
distance déterminée d des bords latéraux 22.1 et 22.3
d'une part, 23.1 et 23.3 d'autre part, de longueur
x/2 et de largeur e, par exemple de 3 à 5 mm.The peripheral edges of the sides 22.2 and 23.2, moreover respectively comprise two identical rectangular or substantially
La largeur l des rabats 22 et 23, entre les
lignes de pliage 19 et les bords périphériques 22.2
et 23.2, est égale à la moitié de la largeur du
couvercle de la caisse, de sorte que, lorsque celle-ci
est formée, lesdits bords sont jointifs, les
fentes 27 et 28 du rabat 22 venant en vis à vis des
fentes correspondantes 27 et 28 du rabat 23, pour
former deux fentes identiques parallèles à cheval sur
la jonction entre rabats.The width l of the
Les petits rabats 24 et 25 sont quant à eux
rectangulaires, par exemple de même largeur l que les
grands rabats 22 et 23. Ils comportent chacun une
languette 29 découpée d'un côté dans le rabat et
reliée de l'autre côté au volet 4 ou 5 par une ligne
de pliage 21 légèrement décalée vers l'intérieur du
rabat, par exemple d'1 ou 2 mm par rapport à la ligne
de pliage 20, qui se répartit de part et d'autre de
ladite languette centrée par rapport au rabat.The small flaps 24 and 25 are rectangular, for example of the same width l as the
La languette comporte une extrémité 30 en forme
de pointe, par exemple formant un angle au sommet
obtu de l'ordre de 160 ou 170°, la distance entre la
ligne de pliage 21 et l'extrémité de la pointe 30
étant d', avec d' un peu supérieur à d par exemple
supérieur de deux à trois millimètres à d.The tongue has an
La languette présente par ailleurs une forme en
T complémentaire de celle de deux échancrures 16
symétriquement accolées.The tongue also has a shape in
T complementary to that of two
Les figures 2 à 5 montrent la formation d'une
caisse 31 à coins coupés 32, constituée avec un flan
du type de celui représenté en figure 1.Figures 2 to 5 show the formation of a
La caisse 31 comporte des faces latérales
principales 33, un fond 34 et un couvercle 35,
comprenant deux rabats supérieurs opposés 36
identiques et deux rabats inférieurs opposés
identiques 37, reliés respectivement aux faces
latérales par des lignes de pliage 38 et 39.
Les figures 4 et 5 montrent plus précisemment
le couvercle de la caisse qui comprend deux fentes 40
formées dans les rabats supérieurs respectivement de
part et d'autre du couvercle, parallèlement aux, et à
la distance d des, lignes de pliage 39 des rabats
inférieurs 37, avec les faces auxquelles ils sont
reliés.Figures 4 and 5 show more precisely the cover of the box which comprises two
Le couvercle comprend également deux languettes
41, découpées d'un côté dans lesdits rabats
inférieurs 37, et articulées de l'autre côté
respectivement par rapport à la face latérale
correspondant audit rabat 37, autour de lignes de
pliage 42 parallèles et légèrement au dessus des
lignes de pliage 39 des rabats inférieurs 37.Lid also includes two
Les languettes recouvrent les rabats
supérieurs, qui recouvrent eux-mêmes la partie
complémentaire de la découpe des languettes de rabat
inférieur, l'extrémité 43 desdites languettes
s'enclignant dans les fentes 40. The tabs cover the flaps
superiors, who themselves cover the part
complementary to the cutting of the flap tabs
lower, the
Le fond de la caisse comporte quant à lui, deux
petits rabats intérieurs 44 et deux grands rabats
extérieurs 45 reliés respectivement aux faces
latérales correspondantes par des lignes de pliage 46
et 47.The bottom of the body has two
small
Le fond comprend deux évidements 48, de forme
complémentaire à celle des languettes, de sorte que
lors de l'empilement des caisses les unes sur les
autres, les languettes s'emboítent dans les
évidements d'une caisse supérieure, ce qui permet un
blocage latéral des caisses les unes par rapport aux
autres.The bottom includes two
On a représenté sur la figure 6 un autre mode de réalisation d'un flan 50 selon l'invention.Another mode has been represented in FIG. 6. for producing a blank 50 according to the invention.
Le flan 50 comporte ici uniquement quatre
volets 51, et une languette de collage 52
d'extrémité, pour former une caisse
parallélépipèdique.The blank 50 here comprises only four
Les rabats 53 formant le couvercle sont ici de
même largeur, deux desdits rabats comprennent des
languettes 54, de forme sensiblement rectangulaires
dont l'extrémité est propre à coopérer avec les demi-fentes
55 qui, une fois accolées, forment les fentes
du couvercle comme décrit ci-avant.The
Les rabats 56 formant le fond de la caisse
sont, par exemple, démunis ici d'échancrures, et sont
de type classique, pour caisse américaine.The
On va maintenant décrire la formation du fond et du couvercle d'une caisse selon l'invention en références aux figures 2 à 5.We will now describe the formation of the bottom and of the cover of a box according to the invention in references to Figures 2 to 5.
Les parois latérales de la caisse sont formées par enroulement autour d'un mandrin, les rabats intérieurs du fond étant d'abord repliés. Puis les rabats extérieurs sont à leur tour repliés sur les rabats intérieurs, comme schématisé sur la figure 2. The side walls of the body are formed by winding around a mandrel, the flaps interior of the bottom being first folded. Then the outer flaps are in turn folded over the interior flaps, as shown in Figure 2.
La caisse est alors remplie par le haut. On
replie ensuite les rabats inférieurs du couvercle. Du
fait du décalage entre lignes de pliage 20 et 21, les
lignes 20 étant également et par exemple plus
prononcées que les lignes de pliage 21, les
languettes restent droites ou verticales (voir figure
3).The box is then filled from above. We
then fold the lower flaps of the cover. Of
offset between
Puis on replit les rabats supérieurs du couvercle, les bords périphériques desdits rabats devenant jointifs (voir figures 4).Then we fold the upper flaps of the cover, the peripheral edges of said flaps becoming contiguous (see Figures 4).
Enfin, on replit les languettes dont l'extrémité vient s'encliquer dans les fentes.Finally, we fold the tabs of which the end clicks into the slots.
La figure 7 montre un flan 60 en carton ondulé
double face par exemple de forte épaisseur (supérieur
à 5mm) selon un autre mode de réalisation de
l'invention, comportant quatre volets latéraux
rectangulaires 61, 62, 63 et 64 reliés deux à deux
par des lignes de pliages 65 parallèles entre elles.Figure 7 shows a blank 60 of corrugated cardboard
double-sided, for example very thick (higher
at 5mm) according to another embodiment of
the invention, comprising four side flaps
rectangular 61, 62, 63 and 64 connected two by two
by
Le flan est terminé latéralement, d'un coté,
par une languette de collage 66 et comprend, dans le
sens transversal, d'un coté, un premier ensemble 67
de quatre rabats reliés respectivement à un coté de
chaque volet latéral par des deuxièmes lignes de
pliage 68 perpendiculaires aux premières et destiné à
former le fond de la caisse, et, de l'autre coté, un
second ensemble 69 de quatre rabats reliés au coté
opposé desdits volets par des troisièmes lignes de
pliage 70, et destiné à former le couvercle de la
caisse.The blank is finished laterally, on one side,
by a
L'ensemble 69 est constitué de deux rabats
latéraux 71 et 72 rectangulaires, dits rabats
supérieurs, intercalés avec deux rabats latéraux 73
et 74, dits rabats inférieurs.
Les rabats inférieurs sont par exemple trapézoïdaux, isocèles, d'angle à la base α compris entre de l'ordre de 88° et de l'ordre de 70°.The lower flaps are for example trapezoidal, isosceles, including angle at base α between around 88 ° and around 70 °.
Ils sont par exemple de même hauteur que les
rabats supérieurs et comportent chacun une languette
75 découpée dans le rabat et reliée au volet
correspondant (62 ou 64), par exemple comme on l'a vu
en référence à la figure 1.They are for example of the same height as the
upper flaps and each has a
Chaque languette comprend une partie inférieure
en forme de trapèze isocèle avantageusement de
hauteur d0 et d'angle à la base β (grand coté du
trapèze), ladite base étant confondue ou sensiblement
confondue avec la ligne de pliage 70. L'angle β est
par exemple compris entre de l'ordre de 85° et de
l'ordre de 60°, par exemple égal à 80°.Each tongue comprises a lower part in the form of an isosceles trapezium advantageously of height d 0 and of angle at the base β (long side of the trapezoid), said base being coincident or substantially coincident with the
La languette est terminée par une portion
d'extrémité triangulaire 76, d'angle au sommet obtu
par exemple égal à de l'ordre de 160° et de faible
hauteur i, par exemple égale à 2mm.The tongue is terminated by a
La hauteur de la languette (distance d' = d0 + i)est par exemple égale à la moitié de la largeur H du rabat.The height of the tongue (distance d = d 0 + i ) is for example equal to half the width H of the flap.
Les rabats supérieurs 71 et 72 comprennent,
quant à eux, de part et d'autre et partant de leur
bord périphérique 77 opposé aux lignes de pliage 70,
une demi-fente rectangulaire 78, perpendiculaire
audit bord périphérique 77 et dont le bord interne 79
(dirigé vers le centre du rabat) est situé à une
distance égale ou sensiblement égale à d0 , du bord
latéral adjacent le plus proche 79 du rabat,
perpendiculaire au bord périphérique 77 dudit rabat.The upper flaps 71 and 72 comprise, for their part, and starting from their
Chaque demi-fente 78 se termine par une ligne
découpée ou sécable 80, dirigée en biais vers le bord
79 adjacent et la ligne de pliage 70, sur une
longueur déterminée l par exemple égale à de l'ordre
de 1 à 2cm.Each half-
L'ensemble 67 destiné à former le fond de la
caisse comprend quant à lui deux rabats 81 et 82
sensiblement rectangulaires, intercalés deux à deux
avec deux rabats trapézoïdaux isocèles 83 et 84.The
Les rabats 81 et 82 comportent chacun un bord
périphérique extérieur 85 en deux parties par exemple
égales, parallèles aux deuxièmes lignes de pliage 68,
ledit bord étant muni d'un décrochement entre ses
deux parties.The
Chaque extrémité des rabats 81 et 82 comprend
'par ailleurs une partie évidée 87 ou 88 de forme
complémentaire à celle d'une demi-languette, comme on
l'a vu précédemment.Each end of the
Le fonctionnement du verrouillage/déverrouillage du couvercle est maintenant précisé en faisant référence à la figure 8.Locking / unlocking operation of the cover is now specified in referring to figure 8.
Pour ce faire, la présence des lignes découpées
80 facilite les ouvertures et les fermetures
successives de la caisse 89.To do this, the presence of
Le déverrouillage de la languette 75 est
réalisé en appuyant sur les rabats supérieurs 71 et
72 adjacents à la languette, ou encore en enfonçant
le milieu du couvercle de la caisse, ce qui permet à
la languette dont l'extrémité est peu engagée sous
les volets supérieurs au delà de la fente 90
constituée par les deux demi-fentes 78, de se libérer
automatiquement avec une bonne élasticité, la partie
interne 91 des rabats supérieurs, délimitée par les
lignes 80, jouant un rôle de ressort de rappel.The release of the
Claims (12)
- Case (31, 89) made of corrugated cardboard sheet material or equivalent, having a polygonal section, comprising side faces (33), a bottom (34) and a lid (35) including two opposite upper flaps (36) and two opposite lower flaps (37) located below said upper flaps, said flaps being connected respectively to the side faces by folding lines (38, 39), the lid (35) including:two slots (40, 90) formed in the upper flaps (36, 71, 72), respectively on either side of the lid, parallel to and at a distance (d, d0) from the folding lines (39) of the lower flaps (37), andtwo tabs (41, 75) cut out respectively on one side from the lower flaps, and hinged respectively on the other side parallel to the folding lines (39) of said lower flaps, overlapping respectively said upper flaps and each having an end (43) that penetrates into a corresponding slot of the lid,
in that the length d' of said tabs, between the end of the point and the folding line of the tab with the flap to which it is fixed, is slightly greater than said distance (d, d0 ), said ends respectively going underneath in abutment with the peripheral edge of the corresponding slot located on the side opposite the folding line of the tab over a distance h less than or equal to a value of the order of 5 mm. - Case according to Claim 1, characterised in that h is less than or equal to a value of the order of 2 mm.
- Case according to any one of the preceding claims, characterised in that each slot (40) is constituted by two half-slots respectively produced facing each other in the peripheral edges of the upper flaps (36), the tabs (41) being centred laterally with respect to the corresponding lower flaps (37).
- Case according to Claim 3 characterised in that each half-slot is extended at its end portion located on the side opposite the other half-slot facing it, by a scored or cut-out line (80) in the corresponding upper flap, said line being directed towards the folding line of the lower flap for the tab (75) corresponding to said half-slots over a given distance and being located in line with the corresponding edge of said tab.
- Case according to any one of the preceding claims, characterised in that each tab (41) is substantially T-shaped, the transverse bar of the T being connected to the folding line (39) of the tab with respect to the corresponding face.
- Case according to any one of Claims 1 to 4 characterised in that each tab (75) is shaped substantially as a rectangle or isosceles trapezoid ending in a triangular portion with an obtuse angle at the vertex.
- Case according to any one of the preceding claims characterised in that, the bottom (34) being constituted by flaps (44, 45) connected respectively to the side faces by folding lines (46, 47), namely two opposite inner flaps (44) and two opposite outer flaps (45), said bottom comprises two portions (48) hollowed out from said outer flaps, complementary in shape to that of the tabs (41).
- Blank (1, 50, 60) made of corrugated cardboard sheet material or equivalent intended to form a case with a polygonal section, comprising:side panels (2, 3, 4, 5, 6; 51; 61, 62, 63, 64) connected to each other via parallel first folding lines,a first set (9, 56, 67) of flaps connected to one side of said panels by second folding lines orthogonal to said first folding lines, suitable for forming the bottom of the case, anda second set (10, 53, 69) of flaps connected to the other side of said panels by third folding lines orthogonal to said first folding lines, suitable for forming the lid of the case, said set being constituted by two side flaps said to be upper (22, 23; 71, 72) interpolated with two side flaps said to be lower (24, 25; 73, 74)
the peripheral edges (22.2, 23.2; 77) of the upper flaps opposite the third folding lines including respectively two portions of slots (27, 28; 55; 78) located on either side of said upper flaps, a given distance (d, d0 ) away from the side edges of said corresponding flaps,
characterised in that the end of the tabs is pointed and the length of said tabs d', between the end of the point and the folding line of the tab with the flap to which it is fixed, is slightly greater than said distance (d, d0 ), by a distance h less than or equal to a value of the order of 5 mm. - Blank according to Claim 8, characterised in that each half-slot (78) is extended at its end portion located on the side opposite the outer peripheral edge (77) of the corresponding upper flap (71, 72) by a scored or cut-out line in said upper flap over a given distance, said scored or cut-out line being directed slantwise towards the folding line (70) of the upper flap and towards the side peripheral edge (79) of said upper panel closest to said half-slot, and being arranged so as to be located in line with the corresponding edge of the tab when the case is formed.
- Blank according to any one of Claims 8 and 9, characterised in that each tab (29) is substantially T-shaped, the bar of the T being connected in its central portion to the corresponding third folding lines (20), parallel to them and slightly offset towards the inside of the flap with respect to them.
- Blank according to any one of Claims 8 and 9 characterised in that each tab (54, 75) is shaped substantially as a rectangle or isosceles trapezoid ending in a triangular portion with an obtuse angle at the vertex.
- Blank according to any one of Claims 8 to 11, characterised in that the lateral sides of the bottom flaps corresponding to the side faces provided on the other side with the upper flaps, comprise notches (16; 87, 88) with a shape complementary to that of a half-tab.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9313894A FR2712567B1 (en) | 1993-11-19 | 1993-11-19 | Box of sheet material with locking lid and blank for making such a box. |
FR9313894 | 1993-11-19 | ||
PCT/FR1994/001355 WO1995013968A1 (en) | 1993-11-19 | 1994-11-18 | Crate made of sheet material and provided with a lockable lid, and blank for producing same |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0729428A1 EP0729428A1 (en) | 1996-09-04 |
EP0729428B1 true EP0729428B1 (en) | 2002-04-03 |
Family
ID=9453065
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95902157A Expired - Lifetime EP0729428B1 (en) | 1993-11-19 | 1994-11-18 | Crate made of sheet material and provided with a lockable lid, and blank for producing same |
Country Status (10)
Country | Link |
---|---|
EP (1) | EP0729428B1 (en) |
JP (1) | JP3654649B2 (en) |
AU (1) | AU685886B2 (en) |
CA (1) | CA2176586A1 (en) |
CZ (1) | CZ144096A3 (en) |
DE (1) | DE69430319T2 (en) |
FR (1) | FR2712567B1 (en) |
NZ (1) | NZ276733A (en) |
PL (1) | PL314472A1 (en) |
WO (1) | WO1995013968A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2441817B (en) * | 2006-09-12 | 2011-08-17 | Ds Smith Packaging Ltd | A blank |
JP5834641B2 (en) * | 2011-09-02 | 2015-12-24 | 凸版印刷株式会社 | Packaging box |
JP6627362B2 (en) * | 2015-09-18 | 2020-01-08 | 王子ホールディングス株式会社 | Packaging box |
JP2021054524A (en) * | 2019-10-02 | 2021-04-08 | 王子ホールディングス株式会社 | Packaging box |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2167917A (en) * | 1936-04-29 | 1939-08-01 | Owens Illinois Glass Co | Carton |
US2451644A (en) * | 1946-04-02 | 1948-10-19 | Geoffrey H Wood | Container |
FR1083621A (en) * | 1953-06-19 | 1955-01-11 | Clergeau Papeteries Leon | Cutting device for box, American type, cardboard |
FR82619E (en) * | 1962-09-24 | 1964-03-20 | Packaging for round shaped products | |
US3272421A (en) * | 1964-05-11 | 1966-09-13 | Owens Illinois Inc | Self-locking carton |
US3302853A (en) * | 1965-06-21 | 1967-02-07 | Waldorf Paper Prod Co | Container closures |
FR2160735B3 (en) * | 1971-11-24 | 1974-07-19 | Ici Ltd | |
US4702408A (en) * | 1986-05-23 | 1987-10-27 | The Mead Corporation | Bulk bin |
-
1993
- 1993-11-19 FR FR9313894A patent/FR2712567B1/en not_active Expired - Lifetime
-
1994
- 1994-11-18 JP JP51427195A patent/JP3654649B2/en not_active Expired - Fee Related
- 1994-11-18 NZ NZ276733A patent/NZ276733A/en not_active IP Right Cessation
- 1994-11-18 WO PCT/FR1994/001355 patent/WO1995013968A1/en active IP Right Grant
- 1994-11-18 AU AU11113/95A patent/AU685886B2/en not_active Ceased
- 1994-11-18 CA CA 2176586 patent/CA2176586A1/en not_active Abandoned
- 1994-11-18 DE DE69430319T patent/DE69430319T2/en not_active Expired - Fee Related
- 1994-11-18 EP EP95902157A patent/EP0729428B1/en not_active Expired - Lifetime
- 1994-11-18 PL PL94314472A patent/PL314472A1/en unknown
- 1994-11-18 CZ CZ961440A patent/CZ144096A3/en unknown
Also Published As
Publication number | Publication date |
---|---|
JP3654649B2 (en) | 2005-06-02 |
CA2176586A1 (en) | 1995-05-26 |
FR2712567A1 (en) | 1995-05-24 |
EP0729428A1 (en) | 1996-09-04 |
AU1111395A (en) | 1995-06-06 |
WO1995013968A1 (en) | 1995-05-26 |
DE69430319T2 (en) | 2003-04-17 |
FR2712567B1 (en) | 1996-01-12 |
DE69430319D1 (en) | 2002-05-08 |
PL314472A1 (en) | 1996-09-16 |
AU685886B2 (en) | 1998-01-29 |
NZ276733A (en) | 1997-12-19 |
JPH09505018A (en) | 1997-05-20 |
CZ144096A3 (en) | 1997-03-12 |
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