EP0605611A1 - Packaging made from a thin folded sheet. - Google Patents

Packaging made from a thin folded sheet.

Info

Publication number
EP0605611A1
EP0605611A1 EP92920893A EP92920893A EP0605611A1 EP 0605611 A1 EP0605611 A1 EP 0605611A1 EP 92920893 A EP92920893 A EP 92920893A EP 92920893 A EP92920893 A EP 92920893A EP 0605611 A1 EP0605611 A1 EP 0605611A1
Authority
EP
European Patent Office
Prior art keywords
pleated
zone
semi
rigid
deployed
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.)
Granted
Application number
EP92920893A
Other languages
German (de)
French (fr)
Other versions
EP0605611B1 (en
Inventor
Akiva Buchberg
Gilbert Capy
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.)
Wrapco International NV
Original Assignee
Wrapco International NV
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 Wrapco International NV filed Critical Wrapco International NV
Publication of EP0605611A1 publication Critical patent/EP0605611A1/en
Application granted granted Critical
Publication of EP0605611B1 publication Critical patent/EP0605611B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/28—Articles or materials wholly enclosed in composite wrappers, i.e. wrappers formed by associating or interconnecting two or more sheets or blanks
    • 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
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/02—Wrappers or flexible covers
    • B65D65/10—Wrappers or flexible covers rectangular
    • B65D65/12—Wrappers or flexible covers rectangular formed with crease lines to facilitate folding

Definitions

  • the invention relates to a package of which certain elements are semi-rigid in order to delimit a space intended to contain in particular solid products in bulk.
  • the invention is an improvement of the patents and patent applications N ° FR-86 03956, N ° FR-88 03654, N ° FR-90 13589 and N ° FR-91 05719.
  • Patent application No. FR-91 05719 describes a packaging comprising a pleated part composed of a thin and flexible film, and an unpleated part which can be formed by the same film, but also attached in the same film, or in a different flexible or semi-rigid film; this non-pleated part is placed around the convex object to be packaged, then the pleated part is deployed, so as to cover the convex object to be packaged while covering, at least partially, the non-pleated part; one can thus obtain an object entirely covered by the packaging; this packaging allows to cover, as we said, convex objects generally formed in one piece; when several pieces are sufficiently coherent with each other, they can form a relatively compact whole, holding in the hand, and it is then possible to deploy the packaging all around.
  • the object of the invention is to solve this problem in order to be able to package, in a package, a part of which is formed from a pleated thin sheet, solid bulk products such as fried potatoes.
  • One of the objectives, targeted by such an invention is in particular to replace the traditional French fries cone widely used in fast food; in fact, this fries cone is not satisfactory because, on the one hand, it is not stable and easily overturns its content, on the other hand, it does not protect its content from soiling and heat loss; finally, it is not practical to use when the fries are delivered directly to people seated in a car.
  • the invention can also be used to package products which are not rigid enough to do without reinforcements such as whole or cut pizzas.
  • Fig.l shows a package according to the invention before deployment.
  • Fig.2 shows the packaging according to the invention with the semi-rigid shaped area containing a solid bulk product.
  • Fig.3 shows the packaging according to the invention with the pleated area deployed to ensure the closure.
  • Fig.4 shows a variant of the packaging according to the invention before deployment, part of which serves as a support for the product to be wrapped.
  • Fig.5 shows the packaging of Fig.4 during deployment and containing for example a pizza.
  • Fig.6 shows the packaging of Fig.4 fully deployed.
  • Fig.7 shows another variant of the invention comprising a semi-rigid part cut and grooved to be able to form a horn.
  • Fig.8 shows the previous packaging whose * • horn is formed but folded for storage before implementation.
  • * Fig. 9 shows the previous packaging with
  • Fig.10 shows the previous packaging with the pleated area deployed to ensure the closure.
  • the invention lies in the assembly of a non-pleated area 1 Fig.l consisting of a semi-rigid sheet,
  • the non-pleated zone 1 Fig. 2 is shaped to, on the one hand, serve as a receptacle for the solid bulk product 3 to be conditioned, on the other hand, to constitute
  • a semi-rigid area 1 Fig.l formed for example of a cardboard box having in its center an elongated rectangular area 4 bordered, on either side of the two of the parallel sides 5, by a half-shaped area -circle 6 having said side 5 as a diameter, thus forming an arc of a circle
  • each of the two parallel sides 5, common to rectangle 4 and to the semi-circular zones 6, has a creasing allowing folding;
  • the pleated paper zone 1 is fixed in the vicinity of its edge 34 according to a fixing zone 33 which runs along it, using one of the fixing methods described in patent application No. FR-91-
  • this fixing zone 33 is situated substantially in the middle of the edge 34 of the pleated part 2 and occupies substantially the length of the side 7 of the rectangular zone 4; the shape of the folds 8 of the pleated zone 2, their number and the distance 9 FIG. 2 between the zones for fixing the folds 10 to each other is calculated by applying either the formulas of patent N ° FR-86-03956, or the formulas of patent application No.
  • the packaging When the packaging is deployed Fig.3 it forms a closed self-locked enclosure insofar as the length of the previously folded and deployed zone 14 is greater than the length of the semicircle 13 Fig.2 forming the edge of the zone semi-rigid 1; indeed the distance 16 between the end 15 Fig. 3 of the pleated deployed zone 14 and the fixing zone 33 Fig.l is then less than the length of the common side
  • the two semicircular zones 6 Fig.l taken by way of example can be replaced by zones limited by arcs of circles passing through the ends 17 of each of the two sides 5 of the rectangle common with the lateral zones 6; there are obviously an infinite number of possibilities; in particular for all the arcs of circles of less than 180 ° delimiting lateral zones 6 smaller than those consisting of semicircles previously described, the deployment of a pleated part 1 calculated according to the cylindrical shape obtained is not automatically self-locking; in return for all the arcs of circles of more than 180 ° delimiting zones larger than the semi-circular zone 6 Fig.3 previously described, the deployment of the pleated part 14 is self-locking because the zone pleated 14 passes during its deployment through a zone diametrically opposite its • fixing point 7 before returning to cover the opposite side 11 Fig.2 of the rectangular zone 4, the distance to the attachment point 7 is less than the diameter of the arc of a circle; more simply it
  • the methods of fixing the pleated part 2 to the non-pleated part 1 are the same as those described in patent application No. FR-91-05719; the pleated part is fixed over all or part of its length depending on what is most practical for use for the proper functioning of the packaging.
  • the packaging is fixed over a length equivalent to that of the side 7, but nothing prevents it from being fixed over a greater length by overflowing onto the lateral parts; the choice is made during the development of the packaging.
  • the rectangular zone 24 Fig.4 has a width 27 slightly greater than the height of the pizza to be packaged; its common side 28 with the area 18 for supporting the pizza - is small enough not to significantly interfere with the positioning thereof; the rectangular area laire has its other side 29 common with the lateral zone 19 which can have a variable shape since its role mainly consists in plugging the portion of round cen ⁇ tral 20 Fig.6 left uncovered by the pleated part 21 when it is deployed around the assembly formed by the pizza and its cardboard support 22.
  • the edge 31 of the pleated part 30 Fig. 4, which is parallel to the folds 32, is fixed in a fixing zone 35 perpendicular to the side 28 of the rectangular zone 24; the rectangular area 24 passes substantially in the middle of the side.31 of the pleated area and is determined using the formulas contained in the cited patents, considering that there is a cylindrical volume whose diameter is that of the zone 18 and height that 27 of the rectangle 24.
  • the implementation of the packaging Fig.4 is done as follows: the packaging Fig.4 is laid flat and the pizza 23 Fig.5 is placed on the support zone 22; the area 19 is folded over the pizza forming the folds along the sides 28 and 29 of the rectangular area 24; a plastic piece can be interposed between the area 19 and the pizza 23 to avoid their contact; then it remains to deploy the pleated part 21 Fig.6 which ver ⁇ rust naturally when its end comes recou ⁇ vir including the rectangular part 36 of the non-pleated area.
  • the lateral zones 37 FIG. 9 are connected by a wall 38 which reduces the opening 39 for loading the parts 40 and makes it possible to facilitate their accumulation before the deployment of the pleated zone 41.
  • a cornet can be produced, the fourth side 38 of which consists of a flat face, for example rectangular, two sides 42 of which are common with the lateral zones 37 and one side 43 adjacent to one of the sides 44 Fig. 7 of the rectangular area 45, which is perpendicular to the sides 46 common with the areas lateral 37; the means for producing the various forms of horn from semi-rigid sheets are perfectly known, as is their folding allowing them to be stored flat before use; by way of example, the connecting wall 38 Fig.
  • the side walls can be connected by several walls 38 which connect the side walls and which either are put in place automatically during the shaping of the semi-rigid part 50, or are put in place at the time of this deployment.
  • the packaging may include vents made up of holes 52 Fig.l and Fig.9 made through the non-pleated area 1 and 50; these holes can lead into an area covered by the deployment of the pleated area if we want to avoid direct contact with the outside, but this is not compulsory; they may be necessary to avoid too high a concentration of humidity in the cavity thus formed, when it contains for example fried potatoes.
  • vents made up of holes 52 Fig.l and Fig.9 made through the non-pleated area 1 and 50; these holes can lead into an area covered by the deployment of the pleated area if we want to avoid direct contact with the outside, but this is not compulsory; they may be necessary to avoid too high a concentration of humidity in the cavity thus formed, when it contains for example fried potatoes.

Abstract

A wrapper is formed of a semi-rigid section is fixed to a pleated section made of a thin flexible sheet. The semi-rigid unpleated section is folded to form a cavity for containing loose products. The pleated section is deployed around the cavity to form a self-closing wrapper. After opening the wrapper the products may be consumed from either section. The wrapper is particularly suited for french fries or pizza pies.

Description

Emballage réalisé à partir d'une feuille mince plissée Packaging made from a thin pleated sheet
L'invention concerne un emballage dont certains éléments sont semi-rigides afin de délimiter un espace destiné à contenir notamment des produits solides en vrac. L'invention est un perfectionnement des brevets et demandes de brevets N° FR-86 03956, N° FR-88 03654, N° FR-90 13589 et N° FR-91 05719.The invention relates to a package of which certain elements are semi-rigid in order to delimit a space intended to contain in particular solid products in bulk. The invention is an improvement of the patents and patent applications N ° FR-86 03956, N ° FR-88 03654, N ° FR-90 13589 and N ° FR-91 05719.
La demande de brevet N° FR-91 05719 décrit un embal¬ lage comportant une partie plissée composée d'un film mince et souple, et une partie non plissée pouvant être constituée par le même film, mais aussi rapportée dans le même film, ou dans un film différent souple ou semi- rigide; cette partie non plissée est placée autour de l'objet convexe à emballer, puis la partie plissée est déployée, de manière à recouvrir l'objet convexe à emballer tout en recouvrant, au moins partiellement, la partie non plissée; on peut obtenir ainsi un objet entièrement recouvert par l'emballage; cet emballage permet de recou¬ vrir, comme on l'a dit, des objets convexes généralement formés d'une seule pièce; lorsque plusieurs pièces sont suffisamment cohérentes entre-elles, elles peuvent former un ensemble relativement compact, tenant dans la main, et il est alors possible de déployer l'emballage tout autour. En contre partie, s'il s'agit d'emballer en vrac un ensemble de pièces non cohérentes entre-elles, comme des pommes de terre frites ou des pommes dauphines, ou des billes, il n'est plus possible d'utiliser l'emballage • tel quel; en effet, l'ensemble des pièces à emballer ne constitue pas une masse suffisamment cohérente pour permet¬ tre le déploiement de l'emballage permettant de les conte- nir; il n'est pas pratiquement possible de conformer préala blement l'emballage comme on le ferait avec un sac en papier, car cet emballage se forme et se verrouille simulta¬ nément à son déploiement autour de l'objet à emballer.Patent application No. FR-91 05719 describes a packaging comprising a pleated part composed of a thin and flexible film, and an unpleated part which can be formed by the same film, but also attached in the same film, or in a different flexible or semi-rigid film; this non-pleated part is placed around the convex object to be packaged, then the pleated part is deployed, so as to cover the convex object to be packaged while covering, at least partially, the non-pleated part; one can thus obtain an object entirely covered by the packaging; this packaging allows to cover, as we said, convex objects generally formed in one piece; when several pieces are sufficiently coherent with each other, they can form a relatively compact whole, holding in the hand, and it is then possible to deploy the packaging all around. On the other hand, if it is a question of packing in bulk a set of parts that are not coherent with each other, such as fried potatoes or dauphine potatoes, or balls, it is no longer possible to use the 'packaging • as is; indeed, all of the parts to be packaged do not constitute a sufficiently coherent mass to allow the deployment of the packaging making it possible to contain them; it is not practically possible to comply beforehand badly the packaging as we would do with a paper bag, because this packaging forms and locks simultaneously ¬ nement when deployed around the object to be packed.
L'invention a pour but de résoudre ce problème afin de pouvoir conditionner dans un emballage dont une partie est formée d'une feuille mince plissée, des produits so¬ lides en vrac comme des pommes de terre frites. Un des objectifs, visés par une telle invention, est notamment de remplacer le traditionnel cornet à frites largement utilisé en restauration rapide; en effet ce cornet à frites ne donne pas satisfaction car, d'une part, il n'est pas stable et renverse facilement son contenu, d'autre part, il ne protège pas son contenu des souillures et des déper¬ ditions de chaleur; enfin il n'est pas pratique d'emploi lorsque les frites sont délivrées directement à des per¬ sonnes assises dans une voiture. L'invention peut aussi servir à emballer des produits qui ne sont pas assez rigi¬ des pour se passer de renfort comme les pizzas entières ou découpées. La Fig.l représente un emballage selon l'invention avant son déploiement.The object of the invention is to solve this problem in order to be able to package, in a package, a part of which is formed from a pleated thin sheet, solid bulk products such as fried potatoes. One of the objectives, targeted by such an invention, is in particular to replace the traditional French fries cone widely used in fast food; in fact, this fries cone is not satisfactory because, on the one hand, it is not stable and easily overturns its content, on the other hand, it does not protect its content from soiling and heat loss; finally, it is not practical to use when the fries are delivered directly to people seated in a car. The invention can also be used to package products which are not rigid enough to do without reinforcements such as whole or cut pizzas. Fig.l shows a package according to the invention before deployment.
La Fig.2 représente l'emballage selon l'invention avec la zone semi-rigide conformée contenant un produit solide en vrac. La Fig.3 représente l'emballage selon l'invention avec la zone plissée déployée pour en assurer la fermeture.Fig.2 shows the packaging according to the invention with the semi-rigid shaped area containing a solid bulk product. Fig.3 shows the packaging according to the invention with the pleated area deployed to ensure the closure.
La Fig.4 représente une variante de l'emballage selon 1'invention avant son déploiement dont une partie sert de support au produit à envelopper. La Fig.5 représente l'emballage de la Fig.4 en cours de déploiement et contenant à titre d'exemple une pizza.Fig.4 shows a variant of the packaging according to the invention before deployment, part of which serves as a support for the product to be wrapped. Fig.5 shows the packaging of Fig.4 during deployment and containing for example a pizza.
La Fig.6 représente l'emballage de la Fig.4 complète¬ ment déployé.Fig.6 shows the packaging of Fig.4 fully deployed.
La Fig.7 représente une autre variante de l'invention comprenant une partie semi-rigide découpée et rainée pour pouvoir former un cornet. La Fig.8 représente l'emballage précédent dont le *• cornet est formé mais replié pour le stockage avant mise en oeuvre. * La Fig.9 représente l'emballage précédent avecFig.7 shows another variant of the invention comprising a semi-rigid part cut and grooved to be able to form a horn. Fig.8 shows the previous packaging whose * • horn is formed but folded for storage before implementation. * Fig. 9 shows the previous packaging with
5 le cornet conformé contenant un produit solide en vrac. La Fig.10 représente l'emballage précédent avec la zone plissée déployée pour en assurer la fermeture.5 the shaped horn containing a solid bulk product. Fig.10 shows the previous packaging with the pleated area deployed to ensure the closure.
L'invention réside dans l'assemblage d'une zone non plissée 1 Fig.l constituée d'une feuille semi-rigide,The invention lies in the assembly of a non-pleated area 1 Fig.l consisting of a semi-rigid sheet,
10 susceptible d'être conformée, .et d'un film mince et souple plissé 2 comme décrit dans les brevets et demandes de brevet cités; la zone non plissée 1 Fig.2 est conformée pour, d'une part, servir de réceptacle au produit solide en vrac 3 à conditionner, d'autre part, pour constituer10 capable of being shaped, .and of a thin and flexible pleated film 2 as described in the cited patents and patent applications; the non-pleated zone 1 Fig. 2 is shaped to, on the one hand, serve as a receptacle for the solid bulk product 3 to be conditioned, on the other hand, to constitute
15 l'objet de forme convexe, comme décrit dans les brevets cités, qui peut-être alors recouvert, totalement ou partiellement, par le déploiement de la zone plissée 14 Fig.3 de l'emballage; la zone constituée d'une feuille semi-rigide 1 Fig.2 sert à rassembler le produit solide15 the object of convex shape, as described in the cited patents, which may then be covered, totally or partially, by the deployment of the pleated zone 14 Fig.3 of the package; the area consisting of a semi-rigid sheet 1 Fig. 2 is used to collect the solid product
20 en vrac 3, afin de donner à l'ensemble une forme suffisam¬ ment cohérente, sans être pour cela fermée, qui permette ensuite le déploiement de la zone de film mince plissée 14 Fig.3 permettant d'assurer la fermeture et le verrouil¬ lage de l'ensemble; dans cette configuration ce n'est20 in bulk 3, in order to give the assembly a sufficiently coherent shape, without being closed for this, which then allows the deployment of the pleated thin film zone 14 FIG. 3 making it possible to ensure closure and locking ¬ age of the whole; in this configuration it is not
25 plus l'objet à emballer qui sert de support au déploiement de la zone plissée,- mais la zone semi-rigide 1 Fig.3 de l'emballage lui-même. Pour illustrer l'invention, on va décrire un exemple d'application qui n'est qu'un cas parmi de nombreuses autres possibilités. L'emballage est constitué25 plus the object to be packaged which serves as a support for the deployment of the pleated zone, - but the semi-rigid zone 1 FIG. 3 of the packaging itself. To illustrate the invention, an example of application will be described which is only one case among many other possibilities. The packaging is made up
30 d'une zone semi-rigide 1 Fig.l formée par exemple d'une cartonnette comportant en son centre une zone rectangulaire allongée 4 bordée, de part et d'autre des deux des côtés parallèles 5, par une zone en forme de demi-cercle 6 ayant ledit côté 5 comme diamètre, formant ainsi un arc de cercle30 of a semi-rigid area 1 Fig.l formed for example of a cardboard box having in its center an elongated rectangular area 4 bordered, on either side of the two of the parallel sides 5, by a half-shaped area -circle 6 having said side 5 as a diameter, thus forming an arc of a circle
35 de 180°; chacun des deux côtés parallèles 5, commun au rectangle 4 et aux zones demi-circulaires 6, comporte un rainage permettant le pliage; la zone de papier plissée 1 est fixée au voisinage de son bord 34 suivant une zone de fixation 33 qui la longe, en utilisant un des modes de fixation décrit dans la demande de brevet N° FR-91-35 of 180 °; each of the two parallel sides 5, common to rectangle 4 and to the semi-circular zones 6, has a creasing allowing folding; the pleated paper zone 1 is fixed in the vicinity of its edge 34 according to a fixing zone 33 which runs along it, using one of the fixing methods described in patent application No. FR-91-
05719, parallèlement à l'un des autres côtés 7 du rectangle 4 de manière que les plis 8 situés au voisinage du côté 7 lui soient parallèles; cette zone de fixation 33 est située sensiblement au milieu du bord 34 de la partie plissée 2 et occupe sensiblement la longueur du côté 7 de la zone rectangulaire 4; la forme des plis 8 de la zone plissée 2 leur nombre et la distance 9 Fig.2 entre les zones de fixation des plis 10 entre eux est calculée en appliquant soit les formules du brevet N° FR-86-03956, soit les formules de la demande de brevet N° FR-90-13589; on applique par exemple les formules relatives au cylindre en considérant que le produit à emballer à la forme d'un demi-cylindre ayant pour diamètre 5 celui des demi-cercles 6 et comme hauteur la longueur des côtés 11 perpendiculaires aux côtés 5 communs avec les zones demi-circulaires 6.05719, parallel to one of the other sides 7 of the rectangle 4 so that the folds 8 located in the vicinity of the side 7 are parallel to it; this fixing zone 33 is situated substantially in the middle of the edge 34 of the pleated part 2 and occupies substantially the length of the side 7 of the rectangular zone 4; the shape of the folds 8 of the pleated zone 2, their number and the distance 9 FIG. 2 between the zones for fixing the folds 10 to each other is calculated by applying either the formulas of patent N ° FR-86-03956, or the formulas of patent application No. FR-90-13589; the formulas relating to the cylinder are applied for example, considering that the product to be packaged in the form of a half-cylinder having the diameter 5 of that of the semicircles 6 and as height the length of the sides 11 perpendicular to the sides 5 common with the semi-circular areas 6.
Pour mettre en service l'emballage, il suffit de redresser les deux zones demi-circulaires 6 Fig.2 pour former avec la zone rectangulaire 4 une sorte de réceptacle 12 en forme de gouttière, de déposer à l'intérieur de ce récepta- cle 12 les produits 3 à emballer et ensuite de déplier la partie plissée 2 pour fermer l'ouverture délimitée par les deux arcs de cercles 13 bordant la zone semi-rigide 1. Le nombre de plis 8 est évidemment déterminé pour couvrir un demi-cylindre et non pas un cylindre entier, et il peut se déterminer de manière empirique. Lorsque l'emballage est déployé Fig.3 il forme une enceinte fermée autoverrouil- lée dans la mesure où la longueur de la zone préalablement plissée et déployée 14 est supérieure à la longueur du demi-cercle 13 Fig.2 formant le bord de la zone semi-rigide 1; en effet la distance 16 entre l'extrémité 15 Fig.3 de la zone plissée déployée 14 et la zone de fixation 33 Fig.l est alors inférieure à la longueur du côté communTo put the packaging into service, simply straighten the two semi-circular zones 6 Fig. 2 to form with the rectangular zone 4 a sort of receptacle 12 in the form of a gutter, to deposit inside this receptacle 12 the products 3 to be packaged and then to unfold the pleated part 2 to close the opening delimited by the two arcs of circles 13 bordering the semi-rigid zone 1. The number of plies 8 is obviously determined to cover a half-cylinder and not an entire cylinder, and it can be determined empirically. When the packaging is deployed Fig.3 it forms a closed self-locked enclosure insofar as the length of the previously folded and deployed zone 14 is greater than the length of the semicircle 13 Fig.2 forming the edge of the zone semi-rigid 1; indeed the distance 16 between the end 15 Fig. 3 of the pleated deployed zone 14 and the fixing zone 33 Fig.l is then less than the length of the common side
5, entre la zone rectangulaire 4 et la zone demi-circulaire5, between the rectangular area 4 and the semi-circular area
6, à l'extrémité duquel se situe le point le plus éloigné de la zone de fixation 33 de la zone plissée. Les deux zones demi-circulaires 6 Fig.l prises à titre d'exemple peuvent être remplacées par des zones limitées par des arcs de cercles passant par les extrémités 17 de chacun des deux côtés 5 du rectangle communs avec les zones latéra- les 6; il existe bien évidemment une infinité de possibili¬ tés; notamment pour tous les arcs de cercles de moins de 180° délimitant des zones latérales 6 plus petites que celles constituées de demi-cercles précédemment décri¬ tes, le déploiement d'une partie plissée 1 calculée suivant la forme cylindrique obtenue n'est pas automatiquement autoverrouillable; en contrepartie pour tous les arcs de cercles de plus de 180° délimitant des zones plus gran¬ des que la zone demi-circulaire 6 Fig.3 précédemment décri¬ te, le déploiement de la partie plissée 14 est autôverrouil- lable parce que la zone plissée 14 passe au cours de son déploiement par une zone diamétralement opposée à son • point de fixation 7 avant de revenir recouvrir le côté opposé 11 Fig.2 de la zone rectangulaire 4 dont la distance au point d'attache 7 est inférieure au diamètre de l'arc de cercle; plus simplement il se forme, lorsque la zone plissée 14 Fig.3 est déployée, une cavité comprenant une contre-dépouille qui l'empêche de s'ouvrir par simple basculement; ce qui n'est pas le cas lorsque l'arc de cercle est inférieur à 180° parce qu'il n'y a pas formation de contre-dépouille; on peut néanmoins réaliser ce verrouil¬ lage en appliquant à ce cas une zone plissée calculée pour un arc de cercle supérieur à 180° et suffisamment long pour que son extrémité 15 Fig.3, lorsqu'elle est déployée soit à une distance 16, de la zone de fixation 33 Fig.l, inférieure à la longueur du côté commun 5 entre le rectangle 4 et les zones latérales 6; il est aussi possible d'obtenir le verrouillage en modifiant par exemple la forme des plis afin d'en augmenter la courbure de la partie plissée déployée 14 à son extrémité, en réduisant 5 par exemple dans cette zone la distance 9 entre les zones de fixation des plis. Il est bien évident que le domaine de l'invention recouvre tous les cas intermédiaires où les zones latérales ont des formes différentes entre-elles et même des formes différentes de l'arc de cercle, comme 0 par exemple elliptique ou polygonale. De même on peut imaginer toute autre forme de réceptacle dont la forme peut-être assimilée à un volume convexe au sens décrit dans la demande de brevet 90-13589.6, at the end of which is located the point furthest from the attachment zone 33 of the pleated zone. The two semicircular zones 6 Fig.l taken by way of example can be replaced by zones limited by arcs of circles passing through the ends 17 of each of the two sides 5 of the rectangle common with the lateral zones 6; there are obviously an infinite number of possibilities; in particular for all the arcs of circles of less than 180 ° delimiting lateral zones 6 smaller than those consisting of semicircles previously described, the deployment of a pleated part 1 calculated according to the cylindrical shape obtained is not automatically self-locking; in return for all the arcs of circles of more than 180 ° delimiting zones larger than the semi-circular zone 6 Fig.3 previously described, the deployment of the pleated part 14 is self-locking because the zone pleated 14 passes during its deployment through a zone diametrically opposite its • fixing point 7 before returning to cover the opposite side 11 Fig.2 of the rectangular zone 4, the distance to the attachment point 7 is less than the diameter of the arc of a circle; more simply it forms, when the pleated area 14 Fig.3 is deployed, a cavity comprising an undercut which prevents it from opening by simple tilting; which is not the case when the arc of a circle is less than 180 ° because there is no formation of undercut; it is nevertheless possible to achieve this locking by applying in this case a pleated zone calculated for an arc of a circle greater than 180 ° and sufficiently long so that its end 15 Fig.3, when it is deployed is at a distance 16, from the fixing zone 33 Fig.l, less than the length of the common side 5 between the rectangle 4 and the lateral zones 6; it is also possible to obtain locking by modifying, for example, the shape of the folds in order to increase the curvature of the folded part deployed 14 at its end, by reducing 5 for example in this zone the distance 9 between the fixing zones. folds. It is obvious that the field of the invention covers all intermediate cases where the lateral zones have different shapes from one another and even different shapes from the arc of a circle, such as 0 for example elliptical or polygonal. Similarly, one can imagine any other form of receptacle whose shape can be assimilated to a convex volume in the sense described in patent application 90-13589.
Les modes de fixation de la partie plissée 2 sur la partie non plissée 1 sont les mêmes que ceux décrits dans la demande de brevet N° FR-91-05719; la partie plissée est fixée sur tout ou partie de sa longueur en fonction de ce qui est le plus pratique à l'usage pour le bon fonctionnement de l'emballage. Dans le cas décrit Fig.l l'emballage est fixé sur une longueur équivalente à celle du côté 7, mais rien n'empêche de le fixer sur une plus grande longueur en débordant sur les parties latérales; le choix est fait au cours de la mise au point de l'embal¬ lage. Dans une variante de l'invention, l'emballage pour pizza Fig.4, comporte une zone semi-rigide non plissée 25 comportant une zone latérale 18 limitée par un arc de cercle 26 largement supérieur à 180°, sensiblement du diamètre de la pizza 23 Fig.5 à emballer et qui constitue le carton support 22 Fig.5 de la pizza 23; la zone rectangulaire 24 Fig.4 a une largeur 27 légèrement supérieure à la hauteur de la pizza à emballer; son côté commun 28 avec la zone 18 de support de la pizza - est suffisamment petit pour ne pas gêner de manière signi- ficative la mise en place de celle-ci; la zone rectangu- laire a son autre côté 29 commun avec la zone latérale 19 qui peut avoir une forme variable puisque son rôle consiste principalement à boucher la portion de rond cen¬ tral 20 Fig.6 laissée découverte par la partie plissée 21 lorsqu'elle est déployée autour de l'ensemble formé par la pizza et son support carton 22. Le bord 31 de la partie plissée 30 Fig.4, qui est parallèle aux plis 32, est fixé suivant une zone de fixation 35 perpendiculaire¬ ment au côté 28 de la zone rectangulaire 24; la zone rec- tangulaire 24 passe sensiblement au milieu du côté.31 de la zone plissée et elle est déterminée en utilisant les formules contenues dans les brevets cités, en consi¬ dérant qu'on a un volume cylindrique dont le diamètre est celui de la zone 18 et la hauteur celle 27 du rec- tangle 24. La mise en oeuvre de l'emballage Fig.4 se fait de la façon suivante : l'emballage Fig.4 est posé à plat et la pizza 23 Fig.5 est posée sur la zone support 22; la zone 19 est rabattue sur la pizza en- formant les plis suivant les côtés 28 et 29 de la zone rectangulaire 24; on peut interposer entre la zone 19 et la pizza 23 une pièce plastique pour éviter leur contact; puis il reste à déployer la partie plissée 21 Fig.6 qui se ver¬ rouille naturellement lorsque son extrémité vient recou¬ vrir notamment la partie rectangulaire 36 de la zone non plissée.The methods of fixing the pleated part 2 to the non-pleated part 1 are the same as those described in patent application No. FR-91-05719; the pleated part is fixed over all or part of its length depending on what is most practical for use for the proper functioning of the packaging. In the case described in Fig.l the packaging is fixed over a length equivalent to that of the side 7, but nothing prevents it from being fixed over a greater length by overflowing onto the lateral parts; the choice is made during the development of the packaging. In a variant of the invention, the packaging for pizza Fig. 4 comprises a semi-rigid non-pleated zone 25 comprising a lateral zone 18 limited by an arc of a circle 26 much greater than 180 °, substantially of the diameter of the pizza 23 Fig.5 to be wrapped and which constitutes the support carton 22 Fig.5 of the pizza 23; the rectangular zone 24 Fig.4 has a width 27 slightly greater than the height of the pizza to be packaged; its common side 28 with the area 18 for supporting the pizza - is small enough not to significantly interfere with the positioning thereof; the rectangular area laire has its other side 29 common with the lateral zone 19 which can have a variable shape since its role mainly consists in plugging the portion of round cen¬ tral 20 Fig.6 left uncovered by the pleated part 21 when it is deployed around the assembly formed by the pizza and its cardboard support 22. The edge 31 of the pleated part 30 Fig. 4, which is parallel to the folds 32, is fixed in a fixing zone 35 perpendicular to the side 28 of the rectangular zone 24; the rectangular area 24 passes substantially in the middle of the side.31 of the pleated area and is determined using the formulas contained in the cited patents, considering that there is a cylindrical volume whose diameter is that of the zone 18 and height that 27 of the rectangle 24. The implementation of the packaging Fig.4 is done as follows: the packaging Fig.4 is laid flat and the pizza 23 Fig.5 is placed on the support zone 22; the area 19 is folded over the pizza forming the folds along the sides 28 and 29 of the rectangular area 24; a plastic piece can be interposed between the area 19 and the pizza 23 to avoid their contact; then it remains to deploy the pleated part 21 Fig.6 which ver¬ rust naturally when its end comes recou¬ vir including the rectangular part 36 of the non-pleated area.
Dans une autre variante de 1' invention les zones latérales 37 Fig.9 sont reliées par une paroi 38 qui réduit l'ouverture 39 de chargement des pièces 40 et permet de faciliter leur accumulation avant le déploiement de la zone plissée 41. Par exemple dans le cas d'un emballage destiné aux pommes de terres frites on peut réaliser un cornet dont le quatrième côté 38 est constitué d'une face plane par exemple rectangulaire dont deux côtés 42 sont communs avec les zones latérales 37 et un côté 43 voisin d'un des côtés 44 Fig.7 de la zone rectangulaire 45, qui est perpendiculaire aux côtés 46 communs avec les zones latérales 37; les moyens de réalisation des diverses formes de cornet à partir de feuilles semi-rigides sont parfaitement connus, de même que leur repliage permettant leur stockage à plat avant utilisation; à titre d'exemple la paroi de liaison 38 Fig.9 est formée par le recouvrement 47 Fig.8 et la fixation de deux excroissances 48 Fig.7 des zones latérales 37 comportant des rainages 49 permet¬ tant un repliage de la partie non plissée 50 Fig.8 pour positionner et fixer les excroissances 48 entre-elles suivant la zone de recouvrement 47; puis par redressement des zones latérales par pliage des arêtes 46 Fig.9, corres¬ pondant au côté commun de la zone rectangulaire 45, on ouvre le cornet par pliage simultané des rainages 42 Fig.7 bordant les excroissances 48 et redressement du pli 49 Fig.9 pour former la paroi latérale 37; on forme ainsi un cornet qu'il est aisé de remplir; la zone plissée est, quand à elle, dimensionnée, positionnée, fixée en utilisant les mêmes méthodes que celles décrites précédemment et illustrées par les Fig.l, Fig.2, Fig.3; lorsque la partie plissée 51 Fig.10 est déployée autour du cornet formé par la zone semi-rigide conformée 50 on obtient un conteneur fermé; il est bien évident qu'on peut relier les parois latérales par plusieurs parois 38 qui relient les parois latérales et qui, soit se mettent en place automatiquement lors du conformage de la partie semi-rigide 50, soit sont mises en place au moment de ce déploiement.In another variant of the invention, the lateral zones 37 FIG. 9 are connected by a wall 38 which reduces the opening 39 for loading the parts 40 and makes it possible to facilitate their accumulation before the deployment of the pleated zone 41. For example in in the case of a packaging intended for fried potatoes, a cornet can be produced, the fourth side 38 of which consists of a flat face, for example rectangular, two sides 42 of which are common with the lateral zones 37 and one side 43 adjacent to one of the sides 44 Fig. 7 of the rectangular area 45, which is perpendicular to the sides 46 common with the areas lateral 37; the means for producing the various forms of horn from semi-rigid sheets are perfectly known, as is their folding allowing them to be stored flat before use; by way of example, the connecting wall 38 Fig. 9 is formed by the covering 47 Fig. 8 and the fixing of two protrusions 48 Fig. 7 of the lateral zones 37 having grooves 49 allowing both folding of the non-pleated part 50 Fig.8 to position and fix the protrusions 48 therebetween according to the overlap zone 47; then by straightening the lateral zones by folding the edges 46 Fig. 9, corresponding to the common side of the rectangular zone 45, the horn is opened by simultaneous folding of the grooves 42 Fig. 7 bordering the protuberances 48 and straightening the fold 49 Fig .9 to form the side wall 37; a horn is thus formed which it is easy to fill; the pleated area is, when it is sized, positioned, fixed using the same methods as those described above and illustrated by Fig.l, Fig.2, Fig.3; when the pleated part 51 Fig.10 is deployed around the horn formed by the semi-rigid shaped area 50 a closed container is obtained; it is quite obvious that the side walls can be connected by several walls 38 which connect the side walls and which either are put in place automatically during the shaping of the semi-rigid part 50, or are put in place at the time of this deployment.
L'emballage peut comporter des aérations constituées de trous 52 Fig.l et Fig.9 effectués à travers la zone non plissée 1 et 50; ces trous peuvent déboucher dans une zone recouverte par le déploiement de la zone plissée si on veut éviter un contact direct avec l'extérieur, mais ce n'est pas obligatoire; ils peuvent être nécessaires pour éviter une trop grande concentration d'humidité dans la cavité ainsi constituée, lorsqu'elle contient par exemple des pommes de terre frites. Comme on l'a dit précé- demment on peut toujours assembler une zone plissée avec un cornet dont la forme est différente de celle décrite en appliquant pour dimensionner la partie plissée les méthodes de calcul décrites dans les brevets et demande de brevet précédemment cités; la zone de fixation 53 de la partie plissée et de la partie non plissée découle au cas par cas de la position de l'axe de référence définit notamment dans le brevet N° FR-86-03956 autour duquel la partie plissée est déployée et qui permet de déterminer les courbes dont la longueur entre dans la détermination des caractéristiques de la partie plissée.The packaging may include vents made up of holes 52 Fig.l and Fig.9 made through the non-pleated area 1 and 50; these holes can lead into an area covered by the deployment of the pleated area if we want to avoid direct contact with the outside, but this is not compulsory; they may be necessary to avoid too high a concentration of humidity in the cavity thus formed, when it contains for example fried potatoes. As we said before how one can always assemble a pleated area with a horn whose shape is different from that described by applying to size the pleated part the calculation methods described in the patents and patent application cited above; the fixing zone 53 of the pleated part and of the non-pleated part follows on a case-by-case basis from the position of the reference axis defined in particular in patent No. FR-86-03956 around which the pleated part is deployed and which used to determine the curves whose length is used to determine the characteristics of the pleated part.
Lorsque les emballages décrits contiennent des pro¬ duits en vrac, notamment ceux illustrés par la Fig.3 et la Fig.10, il est possible de déverrouiller l'emballage en faisant passer l'extrémité 15 de la partie plissée déployée 14 au-dessus de la zone de retenue précédemment décrite; l'ensemble. étant tourné de manière que la partie plissée déployée se trouve vers le bas de manière à recueillir le produit en vrac 3, contenu initialement dans la- cavité 12, dans la poche ainsi formée; il est possible de détacher la zone semi-rigide 1 de la zone plissée déployée 14 afin de ne conserver que cette dernière de manière à pouvoir y prélever le produit en vrac; cette façon de procéder est très pratique pour la consommation des frites dans une voiture. Il est néanmoins possible de faire l'inverse, en conservant en place le produit en vrac 3 ou la pizza 23 dans la zone semi-rigide pour s'en servir d'assiette après avoir détaché la partie plissée déployée.When the packages described contain bulk products, in particular those illustrated in FIG. 3 and FIG. 10, it is possible to unlock the packaging by passing the end 15 of the folded out folded part 14 above the retention zone previously described; all. being turned so that the folded folded part is located downward so as to collect the bulk product 3, initially contained in the cavity 12, in the pocket thus formed; it is possible to detach the semi-rigid zone 1 from the pleated deployed zone 14 so as to keep only the latter so as to be able to take the bulk product there; this procedure is very practical for consuming fries in a car. It is nevertheless possible to do the opposite, keeping in place the loose product 3 or the pizza 23 in the semi-rigid zone to use it as a plate after having detached the folded pleated part.
v. v.

Claims

Revendications 1 - Emballage constitué d'une feuille mince et souple plissée (2) et d'une feuille non plissée (1) semi-rigide pouvant être conformée pour réaliser une cavité (12) sus¬ ceptible de contenir des produits solides en vrac (3), caractérisé en ce que la zone non plissée semi-rigide Claims 1 - Packaging consisting of a thin and flexible pleated sheet (2) and a semi-rigid non-pleated sheet (1) which can be shaped to create a cavity (12) capable of containing solid products in bulk ( 3), characterized in that the semi-rigid non-pleated zone
(1) sert de support au déploiement de la partie plissée(1) serves as support for the deployment of the pleated part
(2) pour fermer la cavité (12).(2) to close the cavity (12).
2 - Emballage suivant la revendication 1, caracté¬ risé en ce que la feuille non plissée (1) comporte une zone centrale (4), limitée par deux zones latérales (6), pouvant être identiques, susceptibles d'être redressées pour former une cavité (12) en forme de gouttière,tandis que la partie plissée (2), fixée par son extrémité (34) à 1*extrémité (7) de la partie centrale (4) , peut être déployée sur la cavité (12) en prenant appui sur les bords (13) des zones latérales (6).2 - Packaging according to claim 1, characterized in that the non-pleated sheet (1) comprises a central zone (4), limited by two lateral zones (6), which may be identical, capable of being straightened to form a cavity (12) in the form of a gutter, while the pleated part (2), fixed by its end (34) to the end (7) of the central part (4), can be deployed on the cavity (12) in bearing on the edges (13) of the lateral zones (6).
3 - Emballage suivant la revendication 1, caractérisé en ce que la zone non plissée comporte une zone centrale (24) limitée, d'une part, par une zone latérale (18) servant de support à un produit solide et, d'autre part, par une seconde zone latérale (19) venant se rabattre sur la partie supérieure du produit, de manière à obturer l'espace (20), laissé libre par la partie plissée (30) lorsqu'elle est déployée en s'appuyant notamment sur la zone latérale (18)-3 - Packaging according to claim 1, characterized in that the non-pleated zone comprises a central zone (24) limited, on the one hand, by a lateral zone (18) serving as a support for a solid product and, on the other hand , by a second lateral zone (19) which falls back on the upper part of the product, so as to close the space (20), left free by the pleated part (30) when it is deployed, relying in particular on the lateral area (18) -
4 - Emballage suivant l'une quelconque des revendica¬ tions précédentes, caractérisé en ce que la zone non plissée (50) comporte, lorsqu'elle est conformée, au moins une paroi supplémentaire (38) reliant les parois latérales (37) formant, avec les trois autres parois (45) et (37), un conteneur pouvant avoir la forme d'un cornet permettant de faciliter l'accumulation de produits solides en vrac.4 - Packaging according to any one of the preceding claims, characterized in that the non-pleated zone (50) comprises, when it is shaped, at least one additional wall (38) connecting the side walls (37) forming, with the three other walls (45) and (37), a container which can have the shape of a cone making it possible to facilitate the accumulation of solid products in bulk.
5 - Emballage suivant l'une quelconque des revendica¬ tions précédentes, caractérisé en ce que le simple déploie- ment, de la partie plissée (2) autour de la partie semi- rigide conformée (1), provoque le verrouillage de la fermeture, par création d'une contre dépouille, empêchant la partie plissée de s'ouvrir par simple basculement, la contre dépouille étant obtenue en faisant en sorte que l'extrémité (15) de la zone plissée déployée (14) soit plus proche de la zone de fixation (33) que la partie de la zone latérale (6) qui en est le plus éloigné, par augmentation du nombre de plis ou par la modification de la forme des plis et de leur fixation au voisinage de l'extrémité (15) pour en accentuer la courbure.5 - Packaging according to any one of the preceding claims, characterized in that the simple deployment of the pleated part (2) around the semi- rigid shaped (1), causes the locking of the closure, by creating an undercut, preventing the pleated part from opening by simple tilting, the undercut being obtained by ensuring that the end (15) of the deployed pleated zone (14) is closer to the fixing zone (33) than the part of the lateral zone (6) which is furthest away from it, by increasing the number of folds or by modifying the shape of the folds and their fixation in the vicinity of the end (15) to accentuate its curvature.
6 - Emballage suivant l'une quelconque des revendica¬ tions précédentes, caractérisé en ce que la partie plissée déployée (14) peut servir après séparation de la partie semi-rigide (1) du conteneur pour le produit solide en vrac (3 ) . -6 - Packaging according to any one of the preceding claims, characterized in that the deployed pleated part (14) can be used after separation of the semi-rigid part (1) of the container for the solid bulk product (3). -
7 - Emballage suivant l'une quelconque des revendica¬ tions de 1 à 5, caractérisé en ce que la partie semi-rigide (1) peut servir après séparation de la partie plissée déployée (14), de support pour le produit solide en vrac (3).7 - Packaging according to any one of claims 1 to 5, characterized in that the semi-rigid part (1) can serve, after separation from the deployed pleated part (14), as a support for the solid product in bulk (3 ) .
8 - Emballage suivant l'une quelconque des revendica¬ tions précédentes, caractérisé en ce que la partie semi- rigide comporte des trous (52) permettant l'aération du produit en vrac contenu dans l'emballage. 9 - Emballage suivant l'une quelconque des revendica¬ tions précédentes, caractérisé en ce que la partie semi- rigide comporte des trous (52) qui sont masqués, pour éviter tout contact direct du produit solide en vrac avec l'extérieur, par la partie plissée (51) lorsqu'elle est déployée sur la partie semi-rigide conformée (50). 8 - Packaging according to any one of the preceding claims, characterized in that the semi-rigid part has holes (52) allowing ventilation of the bulk product contained in the packaging. 9 - Packaging according to any one of the preceding claims, characterized in that the semi-rigid part has holes (52) which are masked, to avoid any direct contact of the solid product in bulk with the exterior, by the pleated part (51) when deployed on the shaped semi-rigid part (50).
EP92920893A 1991-09-24 1992-09-23 Packaging made from a thin folded sheet Expired - Lifetime EP0605611B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9111965 1991-09-24
FR9111965A FR2681582B1 (en) 1991-09-24 1991-09-24 PACKAGING MADE FROM A THIN PLEATED SHEET AND A SEMI-RIGID CONFORMABLE SHEET TO CONTAIN SOLID BULK PRODUCTS.
PCT/FR1992/000880 WO1993006022A1 (en) 1991-09-24 1992-09-23 Packaging made from a thin folded sheet

Publications (2)

Publication Number Publication Date
EP0605611A1 true EP0605611A1 (en) 1994-07-13
EP0605611B1 EP0605611B1 (en) 1995-09-13

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EP92920893A Expired - Lifetime EP0605611B1 (en) 1991-09-24 1992-09-23 Packaging made from a thin folded sheet

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EP (1) EP0605611B1 (en)
JP (1) JP2584715B2 (en)
KR (1) KR100239019B1 (en)
AT (1) ATE127757T1 (en)
AU (1) AU654745B2 (en)
CA (1) CA2078978A1 (en)
DE (1) DE69204848T2 (en)
DK (1) DK0605611T3 (en)
ES (1) ES2079892T3 (en)
FR (1) FR2681582B1 (en)
GR (1) GR3018224T3 (en)
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Also Published As

Publication number Publication date
CA2078978A1 (en) 1993-03-25
EP0605611B1 (en) 1995-09-13
ATE127757T1 (en) 1995-09-15
AU2676892A (en) 1993-04-27
DK0605611T3 (en) 1996-01-22
FR2681582A1 (en) 1993-03-26
WO1993006022A1 (en) 1993-04-01
DE69204848D1 (en) 1995-10-19
GR3018224T3 (en) 1996-02-29
KR100239019B1 (en) 2000-01-15
ES2079892T3 (en) 1996-01-16
MX9205403A (en) 1993-05-01
DE69204848T2 (en) 1996-05-23
JPH06510730A (en) 1994-12-01
AU654745B2 (en) 1994-11-17
FR2681582B1 (en) 1994-12-23
US5364016A (en) 1994-11-15
JP2584715B2 (en) 1997-02-26

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