EP0500428B1 - Bag-in-box with automatic unfolding bottom and method of assembling the same - Google Patents

Bag-in-box with automatic unfolding bottom and method of assembling the same Download PDF

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Publication number
EP0500428B1
EP0500428B1 EP92400397A EP92400397A EP0500428B1 EP 0500428 B1 EP0500428 B1 EP 0500428B1 EP 92400397 A EP92400397 A EP 92400397A EP 92400397 A EP92400397 A EP 92400397A EP 0500428 B1 EP0500428 B1 EP 0500428B1
Authority
EP
European Patent Office
Prior art keywords
box
bag
additional plate
automatic
automatic bottom
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
EP92400397A
Other languages
German (de)
French (fr)
Other versions
EP0500428A1 (en
Inventor
Patrick L'huissier
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.)
ROCHETTE CENPA ONDULE
La Rochette Cenpa SA
Original Assignee
ROCHETTE CENPA ONDULE
La Rochette Cenpa SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ROCHETTE CENPA ONDULE, La Rochette Cenpa SA filed Critical ROCHETTE CENPA ONDULE
Publication of EP0500428A1 publication Critical patent/EP0500428A1/en
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Publication of EP0500428B1 publication Critical patent/EP0500428B1/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
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/56—Linings or internal coatings, e.g. pre-formed trays provided with a blow- or thermoformed layer
    • B65D5/60—Loose, or loosely attached, linings
    • B65D5/603—Flexible linings loosely glued to the wall of the container
    • B65D5/606—Bags or bag-like tubes loosely glued to the wall of a "tubular" container
    • 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
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/04—Articles or materials enclosed in two or more containers disposed one within another
    • B65D77/06—Liquids or semi-liquids or other materials or articles enclosed in flexible containers disposed within rigid containers
    • B65D77/062—Flexible containers disposed within polygonal containers formed by folding a carton blank
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2105/00—Rigid or semi-rigid containers made by assembling separate sheets, blanks or webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2105/00—Rigid or semi-rigid containers made by assembling separate sheets, blanks or webs
    • B31B2105/002—Making boxes characterised by the shape of the blanks from which they are formed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2120/00—Construction of rigid or semi-rigid containers
    • B31B2120/40—Construction of rigid or semi-rigid containers lined or internally reinforced
    • B31B2120/408—Construction of rigid or semi-rigid containers lined or internally reinforced by folding a sheet or blank around an inner tubular liner

Definitions

  • the present invention relates to an automatic bottom case and its method of assembly.
  • the automatic bottom boxes are in a manner known per se, boxes whose bottom flaps are partly glued to each other. These boxes are delivered flat and their implementation is very rapid since it suffices to open them so that their bottom is formed, any bonding means then being unnecessary.
  • Boxes-bottles are also known per se and consist of a box inside which is disposed a bag generally made of plastic.
  • This type of box is, for example, used for the packaging of powdery products or for the recovery of waste in hospitals. Their success lies in the fact that after filling the bag, it suffices to close it for example by welding before closing the box to very quickly obtain a practical and reliable packaging.
  • a second model of box-bottles has an automatic bottom.
  • there has never been an automatic bottom case containing the flat plastic bag because it is not possible to provide means machines capable of inserting the plastic bag into the glued and joined box which is flat.
  • the plastic bag is a thin element and it is difficult to provide a clamp capable of grasping it without piercing it, all the more so because of the static electricity created between the bags, it is necessary to exercise a force large enough to take one from a pile.
  • Another difficulty which arises is that it is quite difficult to drag the bag towards the bottom of the box without it getting in the way or folding back on itself.
  • Such a case cannot be flattened for delivery so that one must deliver a set of flat cases and a set of bags, which obliges the buyer to have the means allowing the placement of the bags. in the crates.
  • Document US-A-4,194,439 describes a process for the simultaneous production of two boxes with automatic bottom, from a single cardboard blank and a single plastic bag closed at its two ends. After being made flat, the assembly is cut through the middle to form two symmetrical box-bottles, stored and delivered flat, shaped by lateral pressure, but not capable of being closed by means inherent in the box-bottles.
  • the present invention tends to propose a box-bottom with automatic bottom of rapid production and which can be totally automated in order to be of an attractive cost and to be able to be delivered flat.
  • the invention proposes a box-addition with automatic bottom, in corrugated cardboard, of the type in which a bag is fixed in the box so that the box is delivered flat with the bag inside, characterized in that it comprises an additional plate on which the bag is fixed, said additional plate being fixed to a flap of the automatic bottom of the box so that the box-addition is delivered flat and that upon opening of the body, the automatic bottom is covered by the additional plate.
  • a cardboard blank intended for the manufacture of an automatic bottom case generally consists of four portions.
  • Flaps 11, 21, 31, 41 are formed at the upper ends of said side faces and are intended for closing the top of the box after it has been filled.
  • Bottom flaps 12, 22, 32, 42 are also provided at the lower ends of the side faces for the formation of the bottom of the box. There are two large flaps bottom 12, 32 at the bottom of the wide side faces 10, 30 and two small bottom flaps 22, 42.
  • a lateral tab 13 is arranged along one of the lateral sides of the cutout, here along the wide lateral face 10.
  • the bottom flaps 12, 22, 32, 42 are, in a manner known per se, of generally trapezoidal shape in order to allow the deployment of the automatic bottom when the box is opened.
  • the different parts of the cut are separated from each other by creasing lines to allow them to be articulated and folded relative to each other during the formation of the box.
  • folding flaps 14, 34 extend two bottom flaps of the blank. These foldable flaps 14, 34 are arranged so as to be glued to the adjacent flaps, for the manufacture of the automatic bottom.
  • said folding flaps 14, 34 are arranged along the large bottom flaps 12, 32 secured to the wide side faces 10, 30 but they could also be arranged along the small bottom flaps 22, 42 secured to the side faces narrow 20, 40.
  • This additional plate 5 is a quadrilateral of the same shape and having the same length L and the same width l as the face of the bottom located inside the box after folding and joining it. In the figures, this additional plate is rectangular like the bottom of the box-body which must be made using the cutout shown in Figure 1.
  • the bag 6 is a plastic bag whose opening has the same shape and dimensions as the opening of the box, its height is greater than the height of the box so that it is possible to close the end upper of said bag after filling.
  • This bag 6 is a flat bottom bag and side bellows.
  • the flat bottom of the bag is externally in the form of a trapezoid 61.
  • the end 60 of the bag is narrower than the rest of the bag and has the weld ensuring the closure of it.
  • Said bag 6 is fixed to the additional plate 5 for example by gluing on the face thereof visible in FIG. 2. This fixing tends to secure the bag 6 to the additional plate 5 and can be ensured by a simple point of glue in the bottom area 61 of the bag.
  • One way of making this attachment in a manner that is both safe and rapid consists in providing a slot 50 disposed in the middle part of the additional plate 5.
  • the end 60 of the bag 6 is then passed through this slot 50 in order to be disposed against the face of the additional plate 5 intended to be in abutment on the bottom of the box visible in FIG. 3.
  • the protruding end portion 60 can then be glued to the additional plate 5 in order to obtain a totally secure connection.
  • the bonding of the bottom of the bag is preferably carried out in addition to this joining in order to allow easy opening of said bag at the time of use.
  • This bonding is done on at least one area of the bottom 61.
  • This bonding area must extend over a large part between the slot 50 and the edge of the additional plate in order to concern a large part of the width of the half bottom of the bag. .
  • This bonding can be done over the entire hatched area A shown which generally corresponds to the trapezoid 61 by which the bag 6 is in contact with the additional plate 5.
  • the additional plate 5 must also be fixed to the automatic bottom of the box in order to form, according to the invention, a box with an automatic bottom, the addition of which is perfectly in place when the box is opened.
  • a first method of manufacturing the case in addition to the invention consists in folding and gluing the cardboard blank in order to form the case and join it together as usual.
  • the additional plate 5 being a corrugated cardboard plate having a certain mechanical resistance, this can be gripped by automatic means of the kind of those usually used in the cardboard industry.
  • the bag 6 being fixed as previously described on the additional plate 5, it is driven by any movement of the additional plate without the risk of being torn or folding back on itself. It is thus possible to slide the bag 6 precisely in the box and ensure its perfect positioning at the bottom thereof.
  • the additional plate 5 carrying the bag 6 is positioned on one of the wide lateral faces, here the face 30, of the cardboard blank while the latter is placed flat before folding.
  • said additional plate 5 is disposed against the crease line separating the wide side face 30 of the large bottom flap 32 located in its extension and ensuring the articulation of said flap.
  • the additional plate 5 is placed with its face carrying the adhesive zone B on the top.
  • bottom flaps 12, 22, 32 and 42 are then folded against the side faces 10, 20, 30 and 40 in the usual manner. It can be noted that the large bottom flap 32 is then positioned on the additional plate 5 and in contact with the glue from zone B.
  • the foldable flaps 14 and 34 are then folded outwards and the faces thereof situated outside are glued as shown by the hatched zones C.
  • the tongue 13 is glued on its underside as shown by the dotted hatching shown in FIG. 4.
  • the folding and joining of the box are then carried out as usual by folding, according to arrows F, the side face 10 on the side face 20 then the side face 40 on the side face 30; the tongue 13 is by this folding positioned under the edge of the lateral face 40 with the adhesive directed towards the latter.
  • the bonding of the different elements to each other is completed as usual, for example by pressing.
  • the box-addition according to the invention can be delivered flat, the implementation thereof for its use is made very quickly, simply by its opening. Indeed, the automatic bottom drives during its movement to get flat the additional plate 5 which is integral with it. When the opening of the box is finished, the automatic bottom is flat and is covered by the additional plate.
  • the implementation of the additional plate according to the invention makes it possible to propose a box-addition whose bottom is, on the interior side, perfectly flat since it is covered by the additional plate whose shape and dimensions are provided in order to cover exactly said bottom.
  • This additional plate further strengthens the bottom of the box according to the invention.
  • the opening of the bag can be done very easily by the fact that its bottom is held at least in part on the additional plate.
  • the bag is made of plastic, but it can just as easily be made of paper or composite material.
  • the invention proposes a box-box with automatic bottom, ready for use. .

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)
  • Making Paper Articles (AREA)

Description

La présente invention concerne une caisse-outre à fond automatique et son procédé d'assemblage.The present invention relates to an automatic bottom case and its method of assembly.

Les caisses à fond automatique sont de manière connue en soi, des caisses dont les rabats de fond sont en partie collés les uns aux autres. Ces caisses sont livrées à plat et leur mise en oeuvre est très rapide puisqu'il suffit de les ouvrir pour que leur fond se constitue, tout moyen de collage étant alors inutile.The automatic bottom boxes are in a manner known per se, boxes whose bottom flaps are partly glued to each other. These boxes are delivered flat and their implementation is very rapid since it suffices to open them so that their bottom is formed, any bonding means then being unnecessary.

Les caisses-outres sont elles aussi connues en soi et se composent d'une caisse à l'intérieur de laquelle est disposé un sac généralement en matière plastique. Ce type de caisse est, par exemple, utilisé pour l'emballage de produits pulvérulents ou encore pour la récupération des déchets dans les hôpitaux. Leur succès réside dans le fait qu'après le remplissage du sac, il suffit de fermer celui-ci par exemple par soudure avant de fermer la caisse pour obtenir de manière très rapide un emballage pratique et fiable.Boxes-bottles are also known per se and consist of a box inside which is disposed a bag generally made of plastic. This type of box is, for example, used for the packaging of powdery products or for the recovery of waste in hospitals. Their success lies in the fact that after filling the bag, it suffices to close it for example by welding before closing the box to very quickly obtain a practical and reliable packaging.

Actuellement, les caisses-outres sont souvent munies de leur sac en matière plastique au moment de leur utilisation.Currently, the case-bottles are often provided with their plastic bag at the time of their use.

Pour un premier modèle de telles caisses, des caisses en carton qui ne comportent pas de fond automatique sont livrées ainsi que des sacs en matière plastique. L'utilisateur met alors lui-même la caisse en forme et dispose le sac dans le fond de celle-ci en le collant ou en faisant dépasser des portions d'extrémité de celui-ci sous la caisse afin de les fixer avec les rabats de fond.For a first model of such boxes, cardboard boxes which do not have an automatic bottom are delivered as well as plastic bags. The user then puts the box himself in shape and places the bag in the bottom of the latter by sticking it or making protruding end portions of it under the box in order to fix them with the flaps of background.

Un second modèle de caisses-outres présente un fond automatique. Jusqu'alors, il n'a jamais été livré de caisse à fond automatique contenant le sac en matière plastique à plat car il n'est pas possible de prévoir des moyens automatiques capables d'insérer le sac en matière plastique dans la caisse collée et jonctionnée se présentant à plat.A second model of box-bottles has an automatic bottom. Until now, there has never been an automatic bottom case containing the flat plastic bag because it is not possible to provide means machines capable of inserting the plastic bag into the glued and joined box which is flat.

En effet, le sac en matière plastique est un élément mince et il est difficile de prévoir une pince capable de le saisir sans le percer, d'autant plus qu'à cause de l'électricité statique se créant entre les sacs, il faut exercer une force assez importante pour en prélever un sur une pile. Une autre difficulté qui se présente tient au fait qu'il est tout à fait malaisé d'entraîner le sac vers le fond de la caisse sans que celui-ci se mette en travers ou se replie sur lui-même.Indeed, the plastic bag is a thin element and it is difficult to provide a clamp capable of grasping it without piercing it, all the more so because of the static electricity created between the bags, it is necessary to exercise a force large enough to take one from a pile. Another difficulty which arises is that it is quite difficult to drag the bag towards the bottom of the box without it getting in the way or folding back on itself.

Pour la fabrication d'une caisse-outre avec fond automatique, il est de ce fait nécessaire après le jonctionnement de la caisse, d'ouvrir celle-ci afin d'engager et coller au fond le sac en matière plastique. Cet engagement doit être fait soit par une personne qui passe son bras jusqu'au fond de la caisse, soit en utilisant un mandrin spécialement conçu à cet effet.For the manufacture of a box-addition with automatic bottom, it is therefore necessary after joining the box, to open it in order to engage and stick to the bottom the plastic bag. This engagement must be made either by a person who passes his arm to the bottom of the box, or by using a mandrel specially designed for this purpose.

Une telle caisse ne peut pas être remise à plat pour sa livraison si bien que l'on doit livrer un ensemble de caisses à plat et un ensemble de sacs, ce qui oblige l'acheteur à posséder les moyens permettant la mise en place des sacs dans les caisses.Such a case cannot be flattened for delivery so that one must deliver a set of flat cases and a set of bags, which obliges the buyer to have the means allowing the placement of the bags. in the crates.

Le document US-A-4.194.439 décrit un procédé de fabrication simultanée de deux caisses-outres à fond automatique, à partir d'une seule découpe de carton et d'un seul sac plastique fermé à ses deux extrémités. Après réalisation à plat, l'ensemble est coupé par le milieu pour constituer deux caisses-outres symétriques, stockées et livrées à plat, mises en forme par pression latérale, mais non susceptibles d'être fermées par des moyens inhérents aux caisses-outres.Document US-A-4,194,439 describes a process for the simultaneous production of two boxes with automatic bottom, from a single cardboard blank and a single plastic bag closed at its two ends. After being made flat, the assembly is cut through the middle to form two symmetrical box-bottles, stored and delivered flat, shaped by lateral pressure, but not capable of being closed by means inherent in the box-bottles.

C'est pourquoi la présente invention tend à proposer une caisse-outre à fond automatique de fabrication rapide et pouvant être totalement automatisée afin d'être d'un coût intéressant et de pouvoir être livrée à plat.This is why the present invention tends to propose a box-bottom with automatic bottom of rapid production and which can be totally automated in order to be of an attractive cost and to be able to be delivered flat.

A cet effet, l'invention propose une caisse-outre à fond automatique, en carton ondulé, du type dans lequel un sac est fixé dans la caisse de telle sorte que la caisse soit livrée à plat avec le sac à l'intérieur, caractérisée en ce qu'elle comporte une plaque additionnelle sur laquelle est fixé le sac, ladite plaque additionnelle étant fixée à un rabat du fond automatique de la caisse de sorte que la caisse-outre soit livrée à plat et que lors de l'ouverture de la caisse, le fond automatique soit recouvert par la plaque additionnelle.To this end, the invention proposes a box-addition with automatic bottom, in corrugated cardboard, of the type in which a bag is fixed in the box so that the box is delivered flat with the bag inside, characterized in that it comprises an additional plate on which the bag is fixed, said additional plate being fixed to a flap of the automatic bottom of the box so that the box-addition is delivered flat and that upon opening of the body, the automatic bottom is covered by the additional plate.

La caisse-outre selon l'invention est encore remarquable en ce que :

  • ladite plaque additionnelle est un quadrilatère de même forme que le fond de la caisse et ayant les dimensions internes de celui-ci.
  • ladite plaque additionnelle est fixée par collage sur un grand rabat du fond de la caisse.
  • le sac est fixé au milieu de ladite plaque additionnelle.
  • l'extrémité du sac passe dans une fente de ladite plaque additionnelle.
  • le sac est collé sur ladite plaque additionnelle.
The box addition according to the invention is also remarkable in that:
  • said additional plate is a quadrilateral of the same shape as the bottom of the box and having the internal dimensions thereof.
  • said additional plate is fixed by gluing to a large flap at the bottom of the box.
  • the bag is fixed in the middle of said additional plate.
  • the end of the bag passes through a slot in said additional plate.
  • the bag is glued to said additional plate.

L'invention concerne également un procédé d'assemblage de la caisse-outre selon l'invention, caractérisé en ce que :

  • l'on fixe le sac sur la plaque additionnelle,
  • l'on met en place l'ensemble constitué par la plaque additionnelle et le sac, la plaque additionnelle entraînant alors le sac, pour que la plaque soit collée sur l'un des grands rabats du fond de la caisse.
The invention also relates to a method for assembling the body-box according to the invention, characterized in that:
  • the bag is fixed on the additional plate,
  • the assembly constituted by the additional plate and the bag is put in place, the additional plate then driving the bag, so that the plate is glued to one of the large flaps at the bottom of the box.

Selon d'autres caractéristiques de l'invention :

  • la plaque additionnelle est insérée par des moyens automatiques dans la caisse déjà jonctionnée et disposée à plat :
  • l'on dispose à plat la découpe en carton destinée à former la caisse-outre à fond automatique,
    • . l'on applique la plaque additionnelle sur une face latérale large de la découpe, au voisinage de la ligne d'articulation du rabat de fond,
    • . l'on replie le rabat de fond pour le coller sur la plaque additionnelle,
    • . l'on termine l'assemblage de la caisse de la manière habituelle.
According to other characteristics of the invention:
  • the additional plate is inserted by automatic means into the already joined box and placed flat:
  • the cardboard cutout intended to form the box with automatic bottom is laid out flat,
    • . the additional plate is applied to a wide lateral face of the cutout, in the vicinity of the line of articulation of the bottom flap,
    • . we fold the bottom flap to stick it on the additional plate,
    • . the assembly of the body is completed in the usual manner.

La présente invention sera mieux comprise par la description qui va suivre en référence au dessin sur lequel :

  • la figure 1 représente une découpe en carton destinée à la fabrication d'une caisse à fond automatique,
  • la figure 2 est une vue de la face de la plaque additionnelle destinée à supporter l'outre,
  • la figure 3 est une vue de la face de la plaque additionnelle destinée à être en appui sur le fond de la caisse,
  • la figure 4 montre la découpe de carton sur laquelle est positionnée la plaque additionnelle munie du sac en matière plastique au cours de la fabrication de la caisse-outre selon l'invention.
The present invention will be better understood from the description which follows with reference to the drawing in which:
  • FIG. 1 represents a cardboard cutout intended for the manufacture of an automatic bottom case,
  • FIG. 2 is a view of the face of the additional plate intended to support the addition,
  • FIG. 3 is a view of the face of the additional plate intended to be supported on the bottom of the box,
  • Figure 4 shows the cardboard blank on which is positioned the additional plate provided with the plastic bag during the manufacture of the box-addition according to the invention.

Comme on peut le voir sur la figure 1, et de manière connue en soi, une découpe en carton destinée à la fabrication d'une caisse à fond automatique se compose globalement de quatre portions.As can be seen in FIG. 1, and in a manner known per se, a cardboard blank intended for the manufacture of an automatic bottom case generally consists of four portions.

Celles-ci sont destinées à la formation des deux faces latérales larges 10 et 30 et des deux faces latérales étroites 20 et 40 de la caisse.These are intended for the formation of the two wide side faces 10 and 30 and the two narrow side faces 20 and 40 of the body.

Des rabats 11, 21, 31, 41 sont formés aux extrémités supérieures desdites faces latérales et sont destinés à la fermeture du dessus de la caisse après son remplissage.Flaps 11, 21, 31, 41 are formed at the upper ends of said side faces and are intended for closing the top of the box after it has been filled.

Des rabats de fond 12, 22, 32, 42 sont également prévus aux extrémités inférieures des faces latérales pour la formation du fond de la caisse. Il y a deux grands rabats de fond 12, 32 en bas des faces latérales larges 10, 30 et deux petits rabats de fond 22, 42.Bottom flaps 12, 22, 32, 42 are also provided at the lower ends of the side faces for the formation of the bottom of the box. There are two large flaps bottom 12, 32 at the bottom of the wide side faces 10, 30 and two small bottom flaps 22, 42.

Une languette latérale 13 est disposée le long de l'un des côtés latéraux de la découpe, ici le long de la face latérale large 10.A lateral tab 13 is arranged along one of the lateral sides of the cutout, here along the wide lateral face 10.

Les rabats de fond 12, 22, 32, 42 sont, de manière connue en soi, de forme globalement trapézoïdale afin de permettre le déploiement du fond automatique lors de l'ouverture de la caisse.The bottom flaps 12, 22, 32, 42 are, in a manner known per se, of generally trapezoidal shape in order to allow the deployment of the automatic bottom when the box is opened.

Les différentes parties de la découpe sont séparées les unes des autres par des lignes de rainage afin de permettre leur articulation et leur pliage les unes par rapport aux autres lors de la formation de la caisse.The different parts of the cut are separated from each other by creasing lines to allow them to be articulated and folded relative to each other during the formation of the box.

Pour la formation d'une caisse à fond automatique, des volets repliables 14, 34 prolongent deux rabats de fond de la découpe. ces volets repliables 14, 34 sont disposés de manière à être collés sur les rabats adjacents, pour la fabrication du fond automatique. Sur le dessin, lesdits volets repliables 14, 34 sont disposés le long des grands rabats de fond 12, 32 solidaires des faces latérales larges 10, 30 mais ils pourraient également être disposés le long des petits rabats de fond 22, 42 solidaires des faces latérales étroites 20, 40.For the formation of an automatic bottom box, folding flaps 14, 34 extend two bottom flaps of the blank. these foldable flaps 14, 34 are arranged so as to be glued to the adjacent flaps, for the manufacture of the automatic bottom. In the drawing, said folding flaps 14, 34 are arranged along the large bottom flaps 12, 32 secured to the wide side faces 10, 30 but they could also be arranged along the small bottom flaps 22, 42 secured to the side faces narrow 20, 40.

On peut voir sur les figures 2 et 3 la plaque additionnelle 5 conçue selon l'invention pour la mise en place du sac en matière plastique 6 dans la caisse-outre.We can see in Figures 2 and 3 the additional plate 5 designed according to the invention for the establishment of the plastic bag 6 in the box-addition.

Cette plaque additionnelle 5 est un quadrilatère de même forme et ayant la même longueur L et la même largeur l que la face du fond située à l'intérieur de la caisse après le pliage et le jonctionnement de celle-ci. Sur les figures, cette plaque additionnelle est rectangulaire comme le fond de la caisse-outre devant être fabriquée à l'aide de la découpe représentée à la figure 1.This additional plate 5 is a quadrilateral of the same shape and having the same length L and the same width l as the face of the bottom located inside the box after folding and joining it. In the figures, this additional plate is rectangular like the bottom of the box-body which must be made using the cutout shown in Figure 1.

Le sac 6 est un sac en matière plastique dont l'ouverture est de même forme et de mêmes dimensions que l'ouverture de la caisse, sa hauteur est supérieure à la hauteur de la caisse afin qu'il soit possible de fermer l'extrémité supérieure dudit sac après son remplissage.The bag 6 is a plastic bag whose opening has the same shape and dimensions as the opening of the box, its height is greater than the height of the box so that it is possible to close the end upper of said bag after filling.

Ce sac 6 est un sac à fond plat et soufflets latéraux.This bag 6 is a flat bottom bag and side bellows.

Comme visible sur les figures et de manière connue en soi, le fond plat du sac se présente extérieurement sous la forme d'un trapèze 61. L'extrémité 60 du sac est plus étroite que le reste du sac et présente la soudure assurant la fermeture de celui-ci.As visible in the figures and in a manner known per se, the flat bottom of the bag is externally in the form of a trapezoid 61. The end 60 of the bag is narrower than the rest of the bag and has the weld ensuring the closure of it.

Ledit sac 6 est fixé à la plaque additionnelle 5 par exemple par collage sur la face de celle-ci visible à la figure 2. Cette fixation tend à solidariser le sac 6 à la plaque additionnelle 5 et peut être assurée par un simple point de colle dans la zone du fond 61 du sac.Said bag 6 is fixed to the additional plate 5 for example by gluing on the face thereof visible in FIG. 2. This fixing tends to secure the bag 6 to the additional plate 5 and can be ensured by a simple point of glue in the bottom area 61 of the bag.

Une manière de réaliser cette fixation de façon à la fois sûre et rapide consiste à prévoir une fente 50 disposée dans la partie médiane de la plaque additionnelle 5. L'extrémité 60 du sac 6 est alors passée dans cette fente 50 afin d'être disposée contre la face de la plaque additionnelle 5 destinée à être en appui sur le fond de la caisse visible à la figure 3. La partie d'extrémité 60 dépassante peut alors être collée sur la plaque additionnelle 5 afin d'obtenir une solidarisation totalement sûre.One way of making this attachment in a manner that is both safe and rapid consists in providing a slot 50 disposed in the middle part of the additional plate 5. The end 60 of the bag 6 is then passed through this slot 50 in order to be disposed against the face of the additional plate 5 intended to be in abutment on the bottom of the box visible in FIG. 3. The protruding end portion 60 can then be glued to the additional plate 5 in order to obtain a totally secure connection.

Le collage du fond du sac est de préférence réalisé en plus de cette solidarisation afin de permettre une ouverture aisée dudit sac au moment de l'utilisation. Ce collage est fait sur au moins une zone du fond 61. Cette zone de collage doit s'étendre sur une grande partie entre la fente 50 et le bord de la plaque additionnelle afin de concerner une grande partie de la largeur du demi fond du sac. Ce collage peut être fait sur toute la zone hachurée A représentée qui correspond globalement au trapèze 61 par lequel le sac 6 est en contact avec la plaque additionnelle 5.The bonding of the bottom of the bag is preferably carried out in addition to this joining in order to allow easy opening of said bag at the time of use. This bonding is done on at least one area of the bottom 61. This bonding area must extend over a large part between the slot 50 and the edge of the additional plate in order to concern a large part of the width of the half bottom of the bag. . This bonding can be done over the entire hatched area A shown which generally corresponds to the trapezoid 61 by which the bag 6 is in contact with the additional plate 5.

La plaque additionnelle 5 doit encore être fixée au fond automatique de la caisse afin de former selon l'invention une caisse-outre à fond automatique dont l'outre est parfaitement mise en place lors de l'ouverture de la caisse.The additional plate 5 must also be fixed to the automatic bottom of the box in order to form, according to the invention, a box with an automatic bottom, the addition of which is perfectly in place when the box is opened.

A cet effet, l'on encolle la face de la plaque additionnelle 5 destinée à être en appui sur ledit fond selon la zone hachurée B de la figure 3.To this end, the face of the additional plate 5 intended to be supported on said bottom is glued according to the hatched area B of FIG. 3.

Les différents éléments nécessaires à la fabrication d'une caisse-outre selon l'invention ayant été décrits, la fabrication de celle-ci peut être faite de différentes manières.The various elements necessary for the manufacture of a box-addition according to the invention having been described, the manufacture of the latter can be done in different ways.

Un premier procédé de fabrication de la caisse-outre selon l'invention, consiste à plier et coller la découpe de carton afin de former la caisse et de la jonctionner comme à l'habitude.A first method of manufacturing the case in addition to the invention consists in folding and gluing the cardboard blank in order to form the case and join it together as usual.

Lorsque la caisse à fond automatique est ainsi préparée, l'on insère la plaque additionnelle 5 et le sac 6 qui en est solidaire dans ladite caisse. La plaque additionnelle 5 étant une plaque en carton ondulé présentant une certaine résistance mécanique, celle-ci peut être saisie par des moyens automatiques du genre de ceux usuellement mis en oeuvre dans l'industrie du carton.When the automatic bottom case is thus prepared, the additional plate 5 and the bag 6 which is integral with it are inserted into said case. The additional plate 5 being a corrugated cardboard plate having a certain mechanical resistance, this can be gripped by automatic means of the kind of those usually used in the cardboard industry.

Le sac 6 étant fixé comme précédemment décrit sur la plaque additionnelle 5, il est entraîné par tout déplacement de la plaque additionnelle sans risquer d'être déchiré ou de se replier sur lui-même. Il est ainsi possible de faire coulisser de manière précise le sac 6 dans la caisse et d'assurer sa mise en place parfaite au fond de celle-ci.The bag 6 being fixed as previously described on the additional plate 5, it is driven by any movement of the additional plate without the risk of being torn or folding back on itself. It is thus possible to slide the bag 6 precisely in the box and ensure its perfect positioning at the bottom thereof.

Lorsque la plaque additionnelle 5 et le sac 6 sont ainsi disposés dans la caisse, l'on applique une pression sur la partie inférieure de celle-ci afin de coller la plaque additionnelle 5 contre le grand rabat de fond avec lequel elle est en contact par la partie encollée B.When the additional plate 5 and the bag 6 are thus arranged in the box, pressure is applied to the lower part thereof in order to glue the plate additional 5 against the large bottom flap with which it is in contact with the glued part B.

De manière avantageuse, on peut également assurer la fabrication de la caisse-outre à fond automatique selon l'invention selon un procédé schématisé à la figure 4.Advantageously, it is also possible to ensure the manufacture of the automatic bottom case according to the invention according to a process shown diagrammatically in FIG.

Selon ce procédé de fabrication, la plaque additionnelle 5 portant le sac 6 est positionnée sur l'une des faces latérales larges, ici la face 30, de la découpe de carton tandis que celle-ci est disposée à plat avant son pliage.According to this manufacturing process, the additional plate 5 carrying the bag 6 is positioned on one of the wide lateral faces, here the face 30, of the cardboard blank while the latter is placed flat before folding.

Comme visible sur la figure 4, ladite plaque additionnelle 5 est disposée contre la ligne de rainage séparant la face latérale large 30 du grand rabat de fond 32 situé dans son prolongement et assurant l'articulation dudit rabat. La plaque additionnelle 5 est posée avec sa face portant la zone de colle B sur le dessus.As visible in Figure 4, said additional plate 5 is disposed against the crease line separating the wide side face 30 of the large bottom flap 32 located in its extension and ensuring the articulation of said flap. The additional plate 5 is placed with its face carrying the adhesive zone B on the top.

Les rabats de fond 12, 22, 32 et 42 sont alors repliés contre les faces latérales 10, 20, 30 et 40 de la manière habituelle. L'on peut remarquer que le grand rabat de fond 32 est alors positionné sur la plaque additionnelle 5 et en contact avec la colle de la zone B.The bottom flaps 12, 22, 32 and 42 are then folded against the side faces 10, 20, 30 and 40 in the usual manner. It can be noted that the large bottom flap 32 is then positioned on the additional plate 5 and in contact with the glue from zone B.

Les volets repliables 14 et 34 sont ensuite repliés vers l'extérieur et les faces de ceux-ci situées vers l'extérieur sont encollées comme représenté par les zones hachurées C.The foldable flaps 14 and 34 are then folded outwards and the faces thereof situated outside are glued as shown by the hatched zones C.

La languette 13 est encollée sur sa face de dessous comme représenté par les hachures en pointillés portées sur la figure 4.The tongue 13 is glued on its underside as shown by the dotted hatching shown in FIG. 4.

Le pliage et le jonctionnement de la caisse sont alors effectués comme à l'habitude en repliant selon les flèches F la face latérale 10 sur la face latérale 20 puis la face latérale 40 sur la face latérale 30 ; la languette 13 est par ce pliage positionnée sous la bordure de la face latérale 40 avec la colle dirigée vers celle-ci.The folding and joining of the box are then carried out as usual by folding, according to arrows F, the side face 10 on the side face 20 then the side face 40 on the side face 30; the tongue 13 is by this folding positioned under the edge of the lateral face 40 with the adhesive directed towards the latter.

Le collage des différents éléments les uns aux autres est terminé comme à l'habitude par exemple par pressage.The bonding of the different elements to each other is completed as usual, for example by pressing.

La caisse-outre selon l'invention peut être livrée à plat, la mise en oeuvre de celle-ci pour son utilisation est faite de manière très rapide, simplement par son ouverture. En effet, le fond automatique entraîne lors de son mouvement pour se disposer à plat la plaque additionnelle 5 qui en est solidaire. Lorsque l'ouverture de la caisse est terminée, le fond automatique est plat et est recouvert par la plaque additionnelle.The box-addition according to the invention can be delivered flat, the implementation thereof for its use is made very quickly, simply by its opening. Indeed, the automatic bottom drives during its movement to get flat the additional plate 5 which is integral with it. When the opening of the box is finished, the automatic bottom is flat and is covered by the additional plate.

La mise en oeuvre de la plaque additionnelle selon l'invention permet de proposer une caisse-outre dont le fond est, du côté intérieur, parfaitement plat puisqu'il est recouvert par la plaque additionnelle dont la forme et les dimensions sont prévues afin de recouvrir exactement ledit fond. Cette plaque additionnelle renforce de plus le fond de la caisse selon l'invention.The implementation of the additional plate according to the invention makes it possible to propose a box-addition whose bottom is, on the interior side, perfectly flat since it is covered by the additional plate whose shape and dimensions are provided in order to cover exactly said bottom. This additional plate further strengthens the bottom of the box according to the invention.

Après l'ouverture de la caisse-outre tendant à mettre son fond à plat, l'ouverture du sac peut se faire très facilement par le fait que son fond est maintenu au moins en partie sur la plaque additionnelle. Dans la description qui précède, le sac est en matière plastique, mais il peut tout aussi bien être en papier ou en matériau composite.After opening the case, besides tending to lay its bottom flat, the opening of the bag can be done very easily by the fact that its bottom is held at least in part on the additional plate. In the above description, the bag is made of plastic, but it can just as easily be made of paper or composite material.

La caisse-outre étant livrée à plat, avec le sac inséré à l'intérieur, et parfaitement solidarisé à la caisse par l'intermédiaire de la plaque additionnelle, l'invention propose une caisse-outre à fond automatique, prête à l'emploi.The box-addition being delivered flat, with the bag inserted inside, and perfectly secured to the box via the additional plate, the invention proposes a box-box with automatic bottom, ready for use. .

Claims (9)

  1. A bag-in-box with automatic bottom, made of corrugated cardboard, of the type in which a bag (6) is fixed in the box such that the bag-in-box is delivered flat with the bag on the inside, characterised in that it comprises an additional plate (5) to which the bag (6) is fixed, said additional plate (5) being fixed to a flap (32) of the automatic bottom of the box such that the bag-in-box is delivered flat and that when the box is opened the automatic bottom is covered by the additional plate (5).
  2. A bag-in-box with automatic bottom according to Claim 1, characterised in that said additional plate (5) is a quadrilateral of the same shape as the bottom of the box and having the internal dimensions (L, l) thereof.
  3. A bag-in-box with automatic bottom according to Claim 1 or Claim 2, characterised in that said additional plate (5) is fixed by gluing to a large flap (12, 32) of the bottom of the box.
  4. A bag-in-box with automatic bottom according to any one of the preceding claims, characterised in that the bag (6) is fixed to the centre of said additional plate (5).
  5. A bag-in-box with automatic bottom according to any one of the preceding claims, characterised in that the end (60) of the bag (6) passes into a slot (5) in said additional plate (5).
  6. A bag-in-box with automatic bottom according to any one of the preceding claims, characterised in that the bag (6) is glued to said additional plate (5).
  7. A process for assembling a bag-in-box according to Claim 1, characterised in that:
    - the bag (6) is fixed to the additional plate (5),
    - the unit formed by the additional plate (5) and the bag (6) is put in place, the additional plate (5) then entraining the bag (6), so that the plate is glued to one of the large flaps (12, 32) of the bottom of the box.
  8. An assembly process according to Claim 7, characterised in that the additional plate (5) is inserted by automatic means into the box already joined and arranged flat.
  9. An assembly process according to Claim 7, characterised in that:
    - the cardboard blank intended to form the bag-in-box with automatic bottom is laid flat,
    - the additional plate (5) is applied to a wide lateral face (10, 30) of the blank, in the vicinity of the joint line of the bottom flap (12, 32),
    - the bottom flap (12, 32) is folded to be glued to the additional plate (5),
    - the assembly of the box is terminated in the conventional manner.
EP92400397A 1991-02-18 1992-02-14 Bag-in-box with automatic unfolding bottom and method of assembling the same Expired - Lifetime EP0500428B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9101875A FR2672874B1 (en) 1991-02-18 1991-02-18 AUTOMATIC BOTTOM BOX AND METHOD OF ASSEMBLY.
FR9101875 1991-02-18

Publications (2)

Publication Number Publication Date
EP0500428A1 EP0500428A1 (en) 1992-08-26
EP0500428B1 true EP0500428B1 (en) 1995-07-19

Family

ID=9409802

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92400397A Expired - Lifetime EP0500428B1 (en) 1991-02-18 1992-02-14 Bag-in-box with automatic unfolding bottom and method of assembling the same

Country Status (3)

Country Link
EP (1) EP0500428B1 (en)
DE (1) DE69203478T2 (en)
FR (1) FR2672874B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2717781B1 (en) * 1994-03-23 1996-06-21 Jacky Guy Flexible grouping packaging and associated overpacking container.
FR2791327B1 (en) * 1999-03-25 2001-04-27 Rossmann CARDBOARD DISTRIBUTOR BOX FOR THE DISTRIBUTION OF PLASTIC SHOULDER BAGS
FR3123797B1 (en) * 2021-06-10 2024-01-05 Marguerite & Cie Menstrual product refills

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3565244A (en) * 1969-10-16 1971-02-23 Coca Cola Co Foldable container
US4194439A (en) * 1978-01-03 1980-03-25 Somerville Belkin Industries Limited Method of making collapsible paperboard cup
FR2440324A1 (en) * 1978-11-06 1980-05-30 Doc Emballages Liquid container with flexible inner lining - has rigid outer box with lid and base attached to inner lining which has filling opening
FR2521103A1 (en) * 1982-02-09 1983-08-12 Doc Emballages Foldable supple sack for fluid materials - fits in rigid container and is glued to rigid panel duplicating container wall or base
FR2629798A1 (en) * 1988-04-07 1989-10-13 Rochette Cenpa CASE-OUTRE

Also Published As

Publication number Publication date
EP0500428A1 (en) 1992-08-26
DE69203478D1 (en) 1995-08-24
DE69203478T2 (en) 1996-02-29
FR2672874A1 (en) 1992-08-21
FR2672874B1 (en) 1993-06-11

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