EP0683035A1 - Procedures for obtaining parts for cardboard containers or similar materials; parts and containers so obtained - Google Patents

Procedures for obtaining parts for cardboard containers or similar materials; parts and containers so obtained Download PDF

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Publication number
EP0683035A1
EP0683035A1 EP95400921A EP95400921A EP0683035A1 EP 0683035 A1 EP0683035 A1 EP 0683035A1 EP 95400921 A EP95400921 A EP 95400921A EP 95400921 A EP95400921 A EP 95400921A EP 0683035 A1 EP0683035 A1 EP 0683035A1
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EP
European Patent Office
Prior art keywords
blank
elements
lines
volume
side walls
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
EP95400921A
Other languages
German (de)
French (fr)
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EP0683035B1 (en
Inventor
Alain Henri Fassier
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.)
Parisienne D'impression Et De Cartonnage- Spic Sa Ste
Original Assignee
Parisienne D'impression Et De Cartonnage- Spic Sa Ste
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Publication of EP0683035A1 publication Critical patent/EP0683035A1/en
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Publication of EP0683035B1 publication Critical patent/EP0683035B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/60—Containers, packaging elements or packages, specially adapted for particular articles or materials for sweets or like confectionery products
    • 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
    • B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D3/00—Making articles of cellular structure, e.g. insulating board
    • B31D3/04—Making articles of cellular structure, e.g. insulating board cellular packaging articles, e.g. for bottles
    • 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
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/0003—Shaping by bending, folding, twisting, straightening, flattening or rim-rolling; Shaping by bending, folding or rim-rolling combined with joining; Apparatus therefor
    • B31F1/0006—Bending or folding; Folding edges combined with joining; Reinforcing edges during the folding thereof
    • B31F1/0009—Bending or folding; Folding edges combined with joining; Reinforcing edges during the folding thereof of plates, sheets or webs
    • B31F1/0012—Bending or folding; Folding edges combined with joining; Reinforcing edges during the folding thereof of plates, sheets or webs combined with making folding lines
    • 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
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/0077—Shaping by methods analogous to moulding, e.g. deep drawing techniques
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/44—Integral, inserted or attached portions forming internal or external fittings
    • B65D5/50—Internal supporting or protecting elements for contents
    • B65D5/5028—Elements formed separately from the container body
    • 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
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/59—Shaping sheet material under pressure
    • B31B50/592—Shaping sheet material under pressure using punches or dies

Definitions

  • cardboard or other similar material is difficult because of their intrinsic non-deformability, unlike plastic films which lend themselves, in particular, to thermoforming and can thus acquire the forms, even complex, of a model.
  • Cardboard on the contrary, can only be shaped by bending or folding and conforms only to developable volumes, that is to say geometrically reducible to a plane.
  • the present invention provides a new solution by which it is possible to produce cardboard or similar material, container components which have a reasonable cost price, while offering customers qualities of solidity and excellent aesthetic presentation.
  • the subject of the invention is a process for obtaining components for containers of cardboard or the like, of the type according to which elements are created in a blank by precut lines and by creasing other lines, the blank opposite a shaping device comprising a concave matrix and a convex stamper, the blank is shaped in the matrix by means of the stamper, the blank is kept in shape in particular by bonding close parts, the matrix is separated from the stamper and the blank is removed, characterized in that a blank whose dimensions are larger than those of a developed element is used, the precut lines and the crease lines are created in order to determine several elements holding to each other by precut lines, the entire blank is placed opposite a conformator whose matrix on the one hand and the stamper on the other hand comprise respectively as many cells and as many punches as there are elements, including only one, we put the blank in shape while causing the separation of the different elements by fracturing the blank along the precut lines by which the elements hold to each other in order to individually form independent elements having a
  • the invention also relates to a component for containers of cardboard or similar material, of the type formed from a part of a blank cut, creased, folded, shaped and maintained in volume, characterized in that it comprises two parts rendered integral, one consisting of at least one volume element and the other by a planar frame, the volume element having at least one periphery of a bottom as well as side walls integral with the frame.
  • Figure 1 is a partial schematic view of a blank according to the invention, crossed with openings, marked with precut lines and crease lines.
  • Figure 2 is a partial schematic view of a second blank according to the invention, through openings through which elements from the blank of Figure 1 must be placed during their forming.
  • Figure 3 is a partial schematic sectional view illustrating the forming of an element according to the invention and showing the blanks of Figures 1 and 2 placed in position between a cell of the matrix and a punch of the stamper, before forming .
  • Figure 4 is a partial schematic sectional view illustrating the forming of an element according to the invention and showing the blanks of Figures 1 and 2 after forming the element in the cell by the punch.
  • Figure 5 is a schematic plan view showing an isolated planar element, that is to say not formed, which does not correspond to the reality of the method according to the invention but allows to distinguish its different parts better than in figure 1.
  • Figure 6 is a schematic view showing the two blanks of Figures 1 and 2 after forming the elements, these appearing by their convex part.
  • Figure 7 is a schematic view showing the two blanks of Figures 1 and 2 after forming the elements, these appearing by their concave part, their fixing lugs then being visible.
  • Figure 8 is a schematic view similar to that of Figure 7 and illustrating a variant of the invention according to which the second blank has wedges.
  • Figure 9 is a partial schematic sectional view showing the two blanks of Figures 1 and 2 after forming the elements (only one is shown) and establishment of a panel attached to the blanks and covering the concave part of the elements.
  • Figure 10 is a schematic view similar to that of Figure 9 and showing the presence of shims, the panel being applied both on the legs of the elements and on the shims.
  • Figure 11 is a schematic view illustrating a variant of the invention according to which the panel is formed by a folded part of the second blank.
  • Figure 12 is a partial schematic view of a blank according to the invention, traversed by openings, marked with precut lines and creasing lines, for the simultaneous obtaining of a plurality of independent trays.
  • FIG. 13 is a schematic view in light perspective, showing the top of a tray according to the invention kept in volume by gluing tabs provided at the ends of a rim and obtained from the blank of FIG. 12.
  • Figure 14 is a schematic view in light perspective similar to that of Figure 13 and showing the same tray but from below it.
  • FIG. 15 is a schematic view at the end of the container of FIG. 13.
  • FIG. 16 is a partial schematic view of a blank in accordance with the invention, crossed with openings, marked with precut lines and crease lines, with a view to obtaining simultaneously a plurality of independent trays, according to an embodiment similar, but different, to that of FIGS. 12 to 15.
  • Figure 17 is a schematic view in light perspective, showing the top of a tray according to the invention maintained in volume by a frame in one piece, from a second blank (not shown).
  • Figure 18 is a schematic view in light perspective similar to that of Figure 17 and showing the same tray but from below it.
  • FIG. 19 is a schematic end view of the tray of FIG. 17.
  • FIG. 20 is a partial schematic view of a blank according to the invention, according to a particular embodiment, crossed with openings, marked with precut lines and crease lines.
  • FIG. 21 is a partial schematic view of a second blank according to the invention, according to the same embodiment as that of FIG. 20, also traversed by openings and having elements to be engaged in the openings of the blank Figure 19 during the simultaneous forming of the two blanks.
  • FIG. 22 is a partial schematic view showing the result of the combination of the blanks of FIGS. 20 and 21.
  • the method according to the invention makes it possible to obtain elements of cardboard or other similar material from a single blank.
  • the precut lines are broken by pulling parallel to the plane of the blank, while the thrust is exerted perpendicular to this same plane.
  • Maintaining volume can be obtained in different ways, in particular by bonding tabs close together during the forming of the elements.
  • the elements can be given a wide variety of forms, as long as they are developable forms, that is to say capable of coming from the plane of the blank, without "left" deformation which can destroy the integrity of the carton.
  • the blank 1 is marked with precut lines 2 in solid lines and crease lines 3 in dotted lines.
  • some of the precut lines form the sides of polygons and create openings 4 revealing the dark background on which the blank 1 is supposed to be applied.
  • the elements have substantially the shape of a cross of Saint Andrew whose branches are divided by creasing lines 3 to facilitate the folding of the parts they determine and which are, for each element: a central bottom 5, four side walls 6 and four legs 7.
  • each element is composed of the bottom 5, the four walls 6 straightened perpendicular to the bottom 5 and the four legs 7 folded down with respect to the walls 6 so as to be parallel to the plane of the bottom 5.
  • the walls 6 are not interconnected, the legs 7 either.
  • FIG. 2 To maintain in volume all the elements coming from the blank 1, in order to form a complete component, a second blank 10 is used (FIG. 2) which is crossed by as many openings 11 as there are elements on the blank 1.
  • the openings 11 have dimensions, shapes and positions which correspond to those of the elements formed. In other words, the openings 11 are arranged like the bottoms 5 of the elements.
  • a shaper For the forming of the elements, their retention in volume and, therefore, the constitution of a container component, a shaper is used ( Figures 3 and 4) which comprises on the one hand a stamper 20 having as many punches 21 as it there are elements and, on the other hand, a matrix 30 having as many cells 31 as there are punches 21, and therefore elements.
  • the second blank 10 is first placed by positioning it so that its openings 11 are each facing a cell 31, then the first blank 1 is placed on the second, by positioning it in such a way so that the bottom 5 of each element is opposite an opening 11.
  • the stamper 20 is lowered so that all the punches 21 push the bottom 5 of all the elements towards the bottom of the cell 31.
  • the bottom 5 exerts traction on the walls 6 and the latter exerts traction on the legs 7.
  • the pulls due to the corresponding punch 21 are opposite, they cause the break of the precut lines 2, which separates the elements from each other and makes them all independent.
  • the walls 6 can therefore follow the bottom 5.
  • the latter is placed on the bottom 32 of the cell 31 while the walls 6 fold along the creasing lines 3 and are placed against the walls 33 of the cell 31.
  • the punch 21 has housings 22 whose depth is substantially equal to the thickness of the cardboard constituting the first blank 1, in order to be able to contain the tabs 7 and press them against the second blank 10 ( Figure 4).
  • the second blank 10 encloses each element by its periphery determined by the walls 6, straightened from the bottom 5 perpendicularly to it.
  • This fixing can be obtained by gluing, in particular by providing an adhesive either under the first blank 1, or on the second blank 10. But, given the relative sliding movement of the two blanks one on the other during the forming of the elements, irregular bonding must be avoided and one can, for example, provide a dry thermoactive adhesive which is made effective only after forming the elements, by heating the punch, which is within the reach of man business.
  • the finished component is presented on one side as shown in FIG. 6 and by its other side as shown in FIG. 7.
  • the "useful" side is, here, that which presents the convex part of the elements because the elements in relief are used as wedging for objects to be immobilized in a container of any known type such as a box, a box or a case. . There is shown in dotted lines in FIG. 6 such an object A blocked by four elements.
  • the component On its other face, the component has the concave part of the elements and the tabs 7 glued to the second blank 10.
  • the panel 40 is applied to a surface all the more irregular as the cardboard constituting the first blank 1 is thicker, which can cause unsightly undulations of the panel 40, as evokes it in figure 9.
  • the panel 40 then has little or no ripples, as shown in FIG. 10.
  • the panel 40 covers the opening of the concave part of the elements, which supposes that we consider their convex part as the only useful part, which is indeed the case when using the component as timing (figure 6).
  • the panel 40 must be traversed by openings centered on the elements in order to hide the tabs 7 while leaving free access to the interior of the elements.
  • the panel 40 is an independent panel, attached and fixed to the blanks 1 and 10.
  • FIG. 11 an alternative embodiment of the covering panel is shown, which consists in providing a second blank 10 of approximately double length in order to have two parts 10 a and 10 b separated by a transverse fold line 10 c .
  • the second blank 10 is then folded along line 10 c , as indicated by the arrow, to be applied to the first blank 1 and to the back of its part 10 a .
  • FIGS. 12 to 15 an element according to the invention is seen, consisting of a simple tray, coming from a blank 50 cut out and possibly printed, represented in FIG. 12.
  • Crease lines 53 determine, for the tray to result from each blank, a bottom 54 and opposite side walls 55 and 56, while crease lines 57 determine opposite segments 58 and 59 to determine a frame as will be seen. describe below.
  • the blanks After having made these pre-cut lines 51 and 52 as well as these crease lines 53 and 57, the blanks are shaped.
  • the breaking of the precut lines 51 and 52 is effected by traction parallel to the plane of the blank 50, while the thrust of the punches is exerted perpendicular to this same plane.
  • Maintaining volume is obtained by bonding neighboring segments 58 and 59 close together during the formation of the trays, or more generally by any means of assembly and, in particular, by thermoadhesion.
  • the blank 50 Before passing to the shaper, the blank 50 therefore has a plurality of blanks fixed to each other and after passing to the shaper, individual and independent trays are obtained which are each presented as shown in FIGS. 13 to 15.
  • the length of the segments 58 on the one hand and the length of the segments 59 on the other hand are calculated so that a segment 59 covers the end of the two contiguous segments 58 after forming.
  • This covering is used to fix the segments 58 and 59 together, in particular by gluing.
  • FIGS. 16 to 19 an element according to the invention is seen, consisting of a simple tray, coming from a blank 60 cut out and possibly printed, represented in FIG. 16.
  • Crease lines 63 determine, for the tray to result from each blank, a bottom 64 and opposite side walls 65 and 66, while crease lines 67 determine glue tabs 68 and 69 to cooperate with a frame as will describe it below.
  • the blanks After having made these precut lines 61 and 62 as well as these crease lines 63 and 67, the blanks are shaped.
  • the entire blank 60 is placed opposite a shaping device which will not be described in detail since it is of the same type as that described with regard to FIGS. 3 and 4.
  • the breaking of the precut lines 61 and 62 is effected by traction parallel to the plane of the blank 60, while the thrust of the punches is exerted perpendicular to this same plane.
  • Maintaining volume is obtained, here, by bonding the legs 68 and 69, folded during the formation of the trays, against a frame 70 from a second blank (not shown).
  • This second blank comprises as many frames as there are blanks of trays on the blank 60.
  • the central part of each frame 70 is hollowed out and they hold to each other by their edges.
  • the two blanks Before passing to the shaper, the two blanks are superimposed and during the forming of the blanks of trays, they penetrate into the hollowed-out central part of the frame 70, the tabs 68 and 69 each applying against one of the sides of the frame and being there fixed, in particular by simultaneous bonding.
  • the frames are not separated from each other automatically since they do not undergo any tensile force in their plane since they undergo no training, no deformation.
  • This plate is obtained in a single forming operation, from two coordinated blanks.
  • FIG. 20 we see a first blank 80, presenting a plurality of blanks and notched, for this purpose, with parallel cut lines 81 and cut lines 82 perpendicular to the previous ones and connected by an oblique line 83, giving this set of three lines 82-83 has a substantially "Z" shape.
  • the cutting lines 81 and the creasing lines 84 together define a frame 86 whose sides are joined by perpendicular segments, this frame 86 being intended to remain flat and in one piece.
  • the two blanks 80 and 90 are superimposed, the frames 86 and 94 respectively of which are perfectly superimposed, as well as the perpendicular segments which join their sides, so that the walls 95 and the flaps 96 are placed on and against the walls 87 and the flaps 88.
  • the pushing of the conformator has the effect of acting simultaneously on the two blanks, so that the walls 95 fold “downwards” along the outer lines 93 and push the walls 87 which fold in the same way along the lines 84, while the flaps 96 separate along the line 92, remain parallel to themselves thanks to the interior lines 93 and push the flaps 88. These separate along the line in Z 82-83-82 and remain parallel to themselves through lines 85.
  • each cell is therefore not integral, but has a central opening 100.
  • This embodiment can be adopted to produce a honeycomb tray intended for wedging and for the presentation of small solid objects which are compatible with the presence of the opening 100 in the bottom of each cell.
  • the invention finds numerous applications, both in food and non-food products, especially when it is desired to obtain both an efficient setting and a good presentation.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Table Devices Or Equipment (AREA)
  • Cartons (AREA)
  • Laminated Bodies (AREA)

Abstract

The procedure consists of cutting and scoring a sheet of cardboard along appropriate lines and then stamping it between a die (20) and a matrix (30) to make the container of the required shape. The initial sheet is of greater dimensions than the container to be made from it, and its cut and scored lines are situated so that they form a number of linked components of the container, e.g. sides and a base, some of which are glued together after shaping. The containers can be made with adjoining or separate panels which forms a top of each of the containers. A single sheet of cardboard can be used for a whole series of containers, cut from it in rows. <IMAGE>

Description

On sait que beaucoup de contenants doivent maintenir au plus près de leur contour des petits objets de toutes sortes : flacons de parfum, confiseries, ampoules et autres objets fragiles ou devant être mis en valeur.We know that many containers have to keep as close as possible to their outline small objects of all kinds: perfume bottles, confectionery, bulbs and other fragile or must be highlighted objects.

Certains objets doivent être placés dans des concavités telles que des barquettes, d'autres doivent être maintenus par des reliefs qui ne les enveloppent pas entièrement mais forment des appuis ponctuels judicieusement disposés, ces reliefs étant nommés "calages".Certain objects must be placed in concavities such as trays, others must be maintained by reliefs which do not entirely envelop them but form judiciously placed point supports, these reliefs being called "wedges".

L'utilisation de carton ou autre matériau similaire est difficile en raison de leur indéformabilité intrinsèque, contrairement aux films plastiques qui se prêtent, notamment, au thermoformage et peuvent ainsi acquérir les formes, même complexes, d'un modèle.The use of cardboard or other similar material is difficult because of their intrinsic non-deformability, unlike plastic films which lend themselves, in particular, to thermoforming and can thus acquire the forms, even complex, of a model.

Le carton, au contraire, ne peut être mis en forme que par cintrage ou pliage et ne se conforme qu'à des volumes développables, c'est-à-dire géométriquement réductibles à un plan.Cardboard, on the contrary, can only be shaped by bending or folding and conforms only to developable volumes, that is to say geometrically reducible to a plane.

En outre, les petits objets supposent que les parties qui doivent les maintenir soient également de petites dimensions.In addition, small objects assume that the parts that must hold them are also small.

Or, l'obtention en carton de parties ayant des dimensions faibles entraîne des prix de revient souvent prohibitifs, raison pour laquelle on préfère adopter les matières plastiques.However, obtaining cardboard parts having small dimensions often leads to prohibitive cost prices, which is why we prefer to adopt plastics.

Mais les matières plastiques sont plus économiques que le carton à condition d'avoir une épaisseur faible. Il est pratiquement impossible, actuellement, de réaliser en matière plastique des articles de conditionnement ayant la tenue et l'aspect du carton.But plastics are more economical than cardboard provided they are thin. At present, it is practically impossible to produce plastic articles having the strength and appearance of cardboard.

La présente invention apporte une solution nouvelle grâce à laquelle on peut réaliser en carton, ou matériau similaire, des composants de contenants qui ont un prix de revient raisonnable, tout en offrant à la clientèle des qualités de solidité et de présentation esthétique excellentes.The present invention provides a new solution by which it is possible to produce cardboard or similar material, container components which have a reasonable cost price, while offering customers qualities of solidity and excellent aesthetic presentation.

A cette fin, l'invention a pour objet un procédé d'obtention de composants pour contenants en carton ou matière analogue, du type selon lequel on crée des éléments dans un flan par prédécoupe de lignes et par rainage d'autres lignes, on place le flan en regard d'un conformateur comprenant une matrice concave et un emboutisseur convexe, on met le flan en forme dans la matrice au moyen de l'emboutisseur, on maintient en forme le flan notamment par collage de parties rapprochées, on sépare la matrice de l'emboutisseur et l'on retire le flan, caractérisé en ce que l'on utilise un flan dont les dimensions sont supérieures à celles d'un élément développé, on crée les lignes de prédécoupe et les lignes de rainage afin de déterminer plusieurs éléments tenant les uns aux autres par des lignes de prédécoupe, on place le flan tout entier en regard d'un conformateur dont la matrice d'une part et l'emboutisseur d'autre part comprennent respectivement autant d'alvéoles et autant de poinçons qu'il y a d'éléments, y compris un seul, on met le flan en forme tout en provoquant la séparation des différents éléments par fracture du flan le long des lignes de prédécoupe par lesquelles les éléments tiennent les uns aux autres afin de former individuellement des éléments indépendants présentant une partie concave et une partie convexe formées par des parois latérales et par un fond.To this end, the subject of the invention is a process for obtaining components for containers of cardboard or the like, of the type according to which elements are created in a blank by precut lines and by creasing other lines, the blank opposite a shaping device comprising a concave matrix and a convex stamper, the blank is shaped in the matrix by means of the stamper, the blank is kept in shape in particular by bonding close parts, the matrix is separated from the stamper and the blank is removed, characterized in that a blank whose dimensions are larger than those of a developed element is used, the precut lines and the crease lines are created in order to determine several elements holding to each other by precut lines, the entire blank is placed opposite a conformator whose matrix on the one hand and the stamper on the other hand comprise respectively as many cells and as many punches as there are elements, including only one, we put the blank in shape while causing the separation of the different elements by fracturing the blank along the precut lines by which the elements hold to each other in order to individually form independent elements having a concave part and a convex part formed by side walls and by a bottom.

Selon d'autres caractéristiques de ce procédé :

  • on maintient chaque élément en volume indépendamment des autres, par collage de pattes mises en regard lors du formage;
  • dans un deuxième flan, on crée autant de découpes qu'il y a d'éléments déterminés dans le premier flan, on place le deuxième flan dans la matrice de telle sorte que les découpes soient en regard des alvéoles, on place le premier flan sur le deuxième, on met en forme tous ces éléments en provoquant le repliement de parois latérales faisant partie de chaque élément et l'on fait pénétrer chaque élément indépendant dans une découpe du deuxième flan afin que celui-ci maintienne en volume tous les éléments, puis on fixe les éléments audit deuxième flan;
  • on fixe chaque élément au deuxième flan par collage de pattes que chacun présente après formage;
  • on applique un panneau contre la face du deuxième flan sur laquelle apparaissent les parties concaves des éléments en emprisonnant entre lui et le deuxième flan des pattes que chaque élément présente après formage, puis l'on fixe le panneau au deuxième flan, notamment par collage;
  • le panneau est constitué par un troisième flan, indépendant des deux premiers;
  • on donne au deuxième flan une largeur sensiblement égale à celle du premier flan et une longueur sensiblement double de celle du premier flan, on plie le deuxième flan transversalement à lui-même et on l'applique sur les deux faces du premier flan qui est alors pris "en sandwich", la partie du deuxième flan qui est appliquée contre la face du premier flan sur laquelle apparaissent les parties concaves des éléments, constituant le panneau;
  • le panneau est plein et recouvre les parties concaves des éléments;
  • le panneau présente des ouvertures dont les dimensions et les positions correspondent aux parties concaves des éléments;
  • on applique les pattes en surépaisseur contre le deuxième flan et l'on fixe des cales de même épaisseur sur ledit deuxième flan, entre les pattes, afin que l'on puisse appliquer le panneau aussi uniformément que possible, à la fois sur les pattes et sur les cales;
  • on découpe dans le même deuxième flan les éléments et les cales en les séparant par des lignes de prédécoupe, on met les éléments en forme tout en provoquant la séparation desdits éléments et des cales par fracture du deuxième flan le long des lignes de prédécoupe par lesquelles les éléments tiennent aux cales afin de former individuellement les éléments tout en appliquant les cales sur le premier flan;
  • après formage des éléments, on découpe le deuxième flan autour de chaque élément afin de constituer autant d'ensembles composés chacun d'un élément en volume et d'un cadre sur lequel sont fixées, notamment par collage, des pattes solidaires de chaque paroi latérale;
  • on crée des découpes dans deux flans différents, on place les deux flans dans la matrice l'un sur l'autre de telle sorte que les découpes soient en regard des alvéoles, on met en forme tous les éléments en même temps en provoquant le repliement, par rabattement, de parois latérales de chaque élément dont certaines sont prévues sur le premier flan et les autres sur le deuxième flan, et le repliement, par redressement, de volets solidaires des parois latérales afin de constituer un pourtour d'un fond, puis on fixe entre eux au moins certains de ces volets placés en partie l'un sur l'autre.
  • on crée les découpes en ménageant entre elles des séparations formées par des bandes qui constituent un cadre demeurant dans le plan d'origine des flans.
According to other characteristics of this process:
  • each element is kept in volume independently of the others, by bonding tabs facing each other during forming;
  • in a second blank, we create as many cutouts as there are determined elements in the first blank, we place the second blank in the matrix so that the cutouts are facing the alveoli, we place the first blank on the second, all of these elements are shaped by causing the side walls forming part of each element to be folded over and each independent element is made to penetrate into a cutout of the second blank so that the latter keeps all the elements in volume, then the elements are fixed to said second blank;
  • each element is fixed to the second blank by bonding tabs that each has after forming;
  • a panel is applied against the face of the second blank on which the concave parts of the elements appear, trapping between it and the second blank of the tabs that each element has after forming, then the panel is fixed to the second blank, in particular by gluing;
  • the panel consists of a third blank, independent of the first two;
  • the second blank is given a width substantially equal to that of the first blank and a length substantially double that of the first blank, the second blank is folded transversely to itself and it is applied to the two faces of the first blank which is then taken "in sandwich", the part of the second blank which is applied against the face of the first blank on which the concave parts of the elements appear, constituting the panel;
  • the panel is full and covers the concave parts of the elements;
  • the panel has openings whose dimensions and positions correspond to the concave parts of the elements;
  • applying the legs in excess thickness against the second blank and fixing shims of the same thickness on said second blank, between the legs, so that the panel can be applied as uniformly as possible, both on the legs and on the holds;
  • the elements and the shims are cut from the same second blank by separating them by precut lines, the elements are shaped while causing the separation of said elements and shims by fracturing of the second blank along the precut lines by which the elements hold to the shims in order to individually form the elements while applying the shims to the first blank;
  • after forming the elements, the second blank is cut around each element in order to constitute as many assemblies each composed of an element in volume and of a frame on which are fixed, in particular by gluing, tabs integral with each side wall ;
  • we create cutouts in two different blanks, we place the two blanks in the matrix one on the other so that the cutouts are facing the cells, we shape all the elements at the same time by causing the folding , by folding down, side walls of each element, some of which are provided on the first blank and the others on the second blank, and the folding, by straightening, of flaps integral with the side walls so as to constitute a periphery of a bottom, then at least some of these flaps placed partly one on the other are fixed together.
  • the cutouts are created by providing separations between them formed by strips which constitute a frame remaining in the plane of origin of the blanks.

L'invention a également pour objet un composant pour contenants en carton ou matière analogue, du type formé d'une partie d'un flan découpé, rainé, plié, conformé et maintenu en volume, caractérisé en ce qu'il comprend deux parties rendues solidaires, l'une étant constituée par au moins un élément en volume et l'autre par un cadre plan, l'élément en volume présentant au moins un pourtour d'un fond ainsi que des parois latérales solidaires du cadre.The invention also relates to a component for containers of cardboard or similar material, of the type formed from a part of a blank cut, creased, folded, shaped and maintained in volume, characterized in that it comprises two parts rendered integral, one consisting of at least one volume element and the other by a planar frame, the volume element having at least one periphery of a bottom as well as side walls integral with the frame.

Selon d'autres caractéristiques de ce composant :

  • il comprend un seul élément en volume et un seul cadre;
  • il comprend plusieurs éléments en volume et un seul cadre commun à tous les éléments, ce cadre étant alors constitué par un flan traversé d'au moins autant d'ouvertures qu'il y a d'éléments;
  • les parois latérales sont solidaires de pattes repliées sur le cadre et fixées à lui en surépaisseur;
  • des parois latérales sont solidaires d'un premier flan et d'autres parois latérales sont solidaires d'un deuxième flan, certaines au moins de ces parois latérales portant un volet formant une partie d'un pourtour d'un fond;
  • il comprend un seul élément en volume et un seul cadre;
  • il comprend plusieurs éléments en volume et un seul cadre commun à tous les éléments, ce cadre étant alors constitué par un flan traversé d'au moins autant d'ouvertures qu'il y a d'éléments;
  • les éléments sont à considérer par leurs partie convexe et constituent des reliefs destinés au maintien d'objets;
  • les éléments sont à considérer par leur partie concave et constituent des alvéoles destinés à recevoir des objets;
According to other characteristics of this component:
  • it includes a single volume element and a single frame;
  • it comprises several elements in volume and a single frame common to all the elements, this frame then being constituted by a blank crossed by at least as many openings as there are elements;
  • the side walls are integral with legs folded over the frame and fixed to it in excess thickness;
  • side walls are secured to a first blank and other side walls are secured to a second blank, at least some of these side walls carrying a flap forming part of a periphery of a bottom;
  • it includes a single volume element and a single frame;
  • it comprises several elements in volume and a single frame common to all the elements, this frame then being constituted by a blank crossed by at least as many openings as there are elements;
  • the elements are to be considered by their convex part and constitute reliefs intended for the maintenance of objects;
  • the elements are to be considered by their concave part and constitute cells intended to receive objects;

L'invention sera mieux comprise par la description détaillée ci-après faite en référence au dessin annexé. Bien entendu, la description et le dessin ne sont donnés qu'à titre d'exemple indicatif et non limitatif.The invention will be better understood from the detailed description below made with reference to the accompanying drawing. Of course, the description and the drawing are given only by way of an indicative and nonlimiting example.

La figure 1 est une vue schématique partielle d'un flan conforme à l'invention, traversé d'ouvertures, marqué de lignes de prédécoupe et de lignes de rainage.Figure 1 is a partial schematic view of a blank according to the invention, crossed with openings, marked with precut lines and crease lines.

La figure 2 est une vue schématique partielle d'un deuxième flan conforme l'invention, traversé d'ouvertures par lesquelles des éléments issus du flan de la figure 1 doivent être placés lors de leur formage.Figure 2 is a partial schematic view of a second blank according to the invention, through openings through which elements from the blank of Figure 1 must be placed during their forming.

La figure 3 est une vue schématique partielle en coupe illustrant le formage d'un élément conformément à l'invention et montrant les flans des figures 1 et 2 mis en position entre un alvéole de la matrice et un poinçon de l'emboutisseur, avant formage.Figure 3 is a partial schematic sectional view illustrating the forming of an element according to the invention and showing the blanks of Figures 1 and 2 placed in position between a cell of the matrix and a punch of the stamper, before forming .

La figure 4 est une vue schématique partielle en coupe illustrant le formage d'un élément conformément à l'invention et montrant les flans des figures 1 et 2 après formage de l'élément dans l'alvéole par le poinçon.Figure 4 is a partial schematic sectional view illustrating the forming of an element according to the invention and showing the blanks of Figures 1 and 2 after forming the element in the cell by the punch.

La figure 5 est une vue schématique en plan montrant un élément isolé en plan, c'est-à-dire non formé, ce qui ne correspond pas à la réalité du procédé conforme à l'invention mais permet de discerner ses différentes parties mieux que sur la figure 1.Figure 5 is a schematic plan view showing an isolated planar element, that is to say not formed, which does not correspond to the reality of the method according to the invention but allows to distinguish its different parts better than in figure 1.

La figure 6 est une vue schématique montrant les deux flans des figures 1 et 2 après formage des éléments, ceux-ci apparaissant par leur partie convexe.Figure 6 is a schematic view showing the two blanks of Figures 1 and 2 after forming the elements, these appearing by their convex part.

La figure 7 est une vue schématique montrant les deux flans des figures 1 et 2 après formage des éléments, ceux-ci apparaissant par leur partie concave, leurs pattes de fixation étant alors visibles.Figure 7 is a schematic view showing the two blanks of Figures 1 and 2 after forming the elements, these appearing by their concave part, their fixing lugs then being visible.

La figure 8 est une vue schématique analogue à celle de la figure 7 et illustrant une variante de l'invention selon laquelle le deuxième flan comporte des cales.Figure 8 is a schematic view similar to that of Figure 7 and illustrating a variant of the invention according to which the second blank has wedges.

La figure 9 est une vue schématique partielle en coupe montrant les deux flans des figures 1 et 2 après formage des éléments (un seul est représenté) et mise en place d'un panneau fixé aux flans et recouvrant la partie concave des éléments.Figure 9 is a partial schematic sectional view showing the two blanks of Figures 1 and 2 after forming the elements (only one is shown) and establishment of a panel attached to the blanks and covering the concave part of the elements.

La figure 10 est une vue schématique analogue à celle de la figure 9 et montrant la présence de cales, le panneau étant appliqué à la fois sur les pattes des éléments et sur les cales.Figure 10 is a schematic view similar to that of Figure 9 and showing the presence of shims, the panel being applied both on the legs of the elements and on the shims.

La figure 11 est une vue schématique illustrant une variante de l'invention selon laquelle le panneau est formé par une partie repliée du deuxième flan.Figure 11 is a schematic view illustrating a variant of the invention according to which the panel is formed by a folded part of the second blank.

La figure 12 est une vue schématique partielle d'un flan conforme à l'invention, traversé d'ouvertures, marqué de lignes de prédécoupe et de lignes de rainage, en vue de l'obtention simultanée d'une pluralité de barquettes indépendantes.Figure 12 is a partial schematic view of a blank according to the invention, traversed by openings, marked with precut lines and creasing lines, for the simultaneous obtaining of a plurality of independent trays.

La figure 13 est une vue schématique en légère perspective, montrant le dessus d'une barquette conforme à l'invention maintenue en volume par collage de pattes prévues aux extrémités d'un rebord et obtenue à partir du flan de la figure 12.FIG. 13 is a schematic view in light perspective, showing the top of a tray according to the invention kept in volume by gluing tabs provided at the ends of a rim and obtained from the blank of FIG. 12.

La figure 14 est une vue schématique en légère perspective analogue à celle de la figure 13 et montrant la même barquette mais par le dessous de celle-ci.Figure 14 is a schematic view in light perspective similar to that of Figure 13 and showing the same tray but from below it.

La figure 15 est une vue schématique en bout de la barquette de la figure 13.FIG. 15 is a schematic view at the end of the container of FIG. 13.

La figure 16 est une vue schématique partielle d'un flan conforme à l'invention, traversé d'ouvertures, marqué de lignes de prédécoupe et de lignes de rainage, en vue de l'obtention simultanée d'une pluralité de barquettes indépendantes, selon un mode de réalisation voisin, mais différent, de celui des figures 12 à 15.FIG. 16 is a partial schematic view of a blank in accordance with the invention, crossed with openings, marked with precut lines and crease lines, with a view to obtaining simultaneously a plurality of independent trays, according to an embodiment similar, but different, to that of FIGS. 12 to 15.

La figure 17 est une vue schématique en légère perspective, montrant le dessus d'une barquette conforme à l'invention maintenue en volume par un cadre en une seule pièce, issu d'un second flan (non représenté).Figure 17 is a schematic view in light perspective, showing the top of a tray according to the invention maintained in volume by a frame in one piece, from a second blank (not shown).

La figure 18 est une vue schématique en légère perspective analogue à celle de la figure 17 et montrant la même barquette mais par le dessous de celle-ci.Figure 18 is a schematic view in light perspective similar to that of Figure 17 and showing the same tray but from below it.

La figure 19 est une vue schématique en bout de la barquette de la figure 17.FIG. 19 is a schematic end view of the tray of FIG. 17.

La figure 20 est une vue schématique partielle d'un flan conforme à l'invention, selon un mode de réalisation particulier, traversé d'ouvertures, marqué de lignes de prédécoupe et de lignes de rainage.FIG. 20 is a partial schematic view of a blank according to the invention, according to a particular embodiment, crossed with openings, marked with precut lines and crease lines.

La figure 21 est une vue schématique partielle d'un deuxième flan conforme à l'invention, selon le même mode de réalisation que celui de la figure 20, également traversé d'ouvertures et présentant des éléments devant être engagés dans les ouvertures du flan de la figure 19 lors du formage simultané des deux flans.FIG. 21 is a partial schematic view of a second blank according to the invention, according to the same embodiment as that of FIG. 20, also traversed by openings and having elements to be engaged in the openings of the blank Figure 19 during the simultaneous forming of the two blanks.

La figure 22 est une vue schématique partielle montrant le résultat de la combinaison des flans des figures 20 et 21.FIG. 22 is a partial schematic view showing the result of the combination of the blanks of FIGS. 20 and 21.

Le procédé selon l'invention permet d'obtenir des éléments en carton ou autre matériau similaire à partir d'un seul flan.The method according to the invention makes it possible to obtain elements of cardboard or other similar material from a single blank.

Sur ce flan, on pratique des lignes de prédécoupe, des lignes de rainage et, le cas échéant, des ouvertures. Ensuite, on procède à la mise en forme des éléments qui se séparent les uns des autres par rupture des lignes de prédécoupe, sous l'effet de la poussée que l'on exerce sur chaque élément pour l'enfoncer dans un alvéole.On this blank, precut lines, crease lines and, where appropriate, openings are practiced. Then, the elements which separate from each other are shaped by breaking the precut lines, under the effect of the push which is exerted on each element to push it into a cell.

La rupture des lignes de prédécoupe se fait par traction parallélement au plan du flan, alors que la poussée s'exerce perpendiculairement à ce même plan.The precut lines are broken by pulling parallel to the plane of the blank, while the thrust is exerted perpendicular to this same plane.

Par conséquent, on met en oeuvre une seule opération sur un seul flan alors que l'on obtient une pluralité d'éléments mis en volume.Consequently, a single operation is carried out on a single blank while a plurality of elements set in volume is obtained.

Le maintien en volume peut être obtenu de différentes manières, notamment par collage de pattes rapprochées lors du formage des éléments.Maintaining volume can be obtained in different ways, in particular by bonding tabs close together during the forming of the elements.

On peut donner aux éléments des formes très variées, du moment qu'il s'agit de formes développables, c'est-à-dire susceptibles de provenir du plan du flan, sans déformation "gauche" pouvant détruire l'intégrité du carton.The elements can be given a wide variety of forms, as long as they are developable forms, that is to say capable of coming from the plane of the blank, without "left" deformation which can destroy the integrity of the carton.

Sur les figures 1 à 11 on a représenté un premier mode de réalisation de l'invention, selon quelques variantes que l'on va expliciter.In Figures 1 to 11 there is shown a first embodiment of the invention, according to some variants which will be explained.

Sur la figure 1, on voit un flan conforme à l'invention que l'on a représenté sur un fond plus foncé pour mieux faire ressortir ses caractéristiques.In Figure 1, we see a blank according to the invention which is shown on a darker background to better highlight its characteristics.

Le flan 1 est marqué de lignes de prédécoupe 2 en traits pleins et de lignes de rainage 3 en traits pointillés.The blank 1 is marked with precut lines 2 in solid lines and crease lines 3 in dotted lines.

Ici, certaines des lignes de prédécoupe forment les côtés de polygones et créent des ouvertures 4 laissant apparaître le fond foncé sur lequel le flan 1 est supposé être appliqué.Here, some of the precut lines form the sides of polygons and create openings 4 revealing the dark background on which the blank 1 is supposed to be applied.

Les éléments ont sensiblement la forme de croix de saint André dont les branches sont divisées par des lignes de rainage 3 devant faciliter le pliage des parties qu'elles déterminent et qui sont, pour chaque élément : un fond central 5, quatre parois latérales 6 et quatre pattes 7.The elements have substantially the shape of a cross of Saint Andrew whose branches are divided by creasing lines 3 to facilitate the folding of the parts they determine and which are, for each element: a central bottom 5, four side walls 6 and four legs 7.

Les éléments tiennent les uns aux autres par les pattes 7 adjacentes, de sorte que le flan tout entier peut être manipulé comme un ensemble complet.The elements hold to each other by the adjacent tabs 7, so that the entire blank can be handled as a complete set.

Après formage, comme on va le décrire plus loin, chaque élément est composé du fond 5, des quatre parois 6 redressées perpendiculairement au fond 5 et des quatre pattes 7 rabattues par rapport aux parois 6 pour être parallèles au plan du fond 5. Les parois 6 ne sont pas reliées entre elles, les pattes 7 non plus.After forming, as will be described below, each element is composed of the bottom 5, the four walls 6 straightened perpendicular to the bottom 5 and the four legs 7 folded down with respect to the walls 6 so as to be parallel to the plane of the bottom 5. The walls 6 are not interconnected, the legs 7 either.

Pour maintenir en volume tous les éléments issus du flan 1, en vue de former un composant complet, on utilise un deuxième flan 10 (figure 2) qui est traversé d'autant d'ouvertures 11 qu'il y a d'éléments sur le flan 1.To maintain in volume all the elements coming from the blank 1, in order to form a complete component, a second blank 10 is used (FIG. 2) which is crossed by as many openings 11 as there are elements on the blank 1.

Les ouvertures 11 ont des dimensions, des formes et des positions qui correspondent à celles des éléments formés. En d'autres termes, les ouvertures 11 sont disposées comme les fonds 5 des éléments.The openings 11 have dimensions, shapes and positions which correspond to those of the elements formed. In other words, the openings 11 are arranged like the bottoms 5 of the elements.

Pour le formage des éléments, leur maintien en volume et, donc, la constitution d'un composant de contenant, on utilise un conformateur (figures 3 et 4) qui comprend d'une part un emboutisseur 20 possédant autant de poinçons 21 qu'il y a d'éléments et, d'autre part, une matrice 30 ayant autant d'alvéoles 31 qu'il y a de poinçons 21, et donc d'éléments.For the forming of the elements, their retention in volume and, therefore, the constitution of a container component, a shaper is used (Figures 3 and 4) which comprises on the one hand a stamper 20 having as many punches 21 as it there are elements and, on the other hand, a matrix 30 having as many cells 31 as there are punches 21, and therefore elements.

Pour la simplicité de l'exposé, on n'a représenté qu'un seul poinçon 21 et un seul alvéole 31, pour le formage d'un seul élément mais, comme on l'a précisé plus haut, le procédé de l'invention s'applique à l'obtention simultanée de plusieurs éléments.For the simplicity of the description, only one punch 21 and a single cell 31 have been shown, for the forming of a single element, but, as stated above, the method of the invention applies to the simultaneous obtaining of several elements.

Sur la matrice 30, on dispose d'abord le deuxième flan 10 en le positionnant de telle sorte que ses ouvertures 11 soient chacune en regard d'un alvéole 31, puis on place le premier flan 1 sur le deuxième, en le positionnant de telle sorte que le fond 5 de chaque élément soit en regard d'une ouverture 11.On the matrix 30, the second blank 10 is first placed by positioning it so that its openings 11 are each facing a cell 31, then the first blank 1 is placed on the second, by positioning it in such a way so that the bottom 5 of each element is opposite an opening 11.

On abaisse l'emboutisseur 20 afin que tous les poinçons 21 poussent le fond 5 de tous les éléments vers le fond de l'alvéole 31.The stamper 20 is lowered so that all the punches 21 push the bottom 5 of all the elements towards the bottom of the cell 31.

Ce faisant, le fond 5 exerce une traction sur les parois 6 et celles-ci exercent une traction sur les pattes 7.In doing so, the bottom 5 exerts traction on the walls 6 and the latter exerts traction on the legs 7.

Comme pour deux éléments adjacents, les tractions dues au poinçon 21 correspondant sont contraires, elles provoquent la rupture des lignes de prédécoupe 2, ce qui sépare les éléments les uns des autres et les rend tous indépendants.As for two adjacent elements, the pulls due to the corresponding punch 21 are opposite, they cause the break of the precut lines 2, which separates the elements from each other and makes them all independent.

Les parois 6 peuvent donc suivre le fond 5. Celui-ci se place sur le fond 32 de l'alvéole 31 tandis que les parois 6 se plient selon les lignes de rainage 3 et se placent contre les parois 33 de l'alvéole 31.The walls 6 can therefore follow the bottom 5. The latter is placed on the bottom 32 of the cell 31 while the walls 6 fold along the creasing lines 3 and are placed against the walls 33 of the cell 31.

Les pattes 7 suivent les parois 6 mais restent parallèles à elles-mêmes, le poinçon 21 les obligeant à se plier selon les lignes de rainage 3 qui les séparent des parois 6.The tabs 7 follow the walls 6 but remain parallel to themselves, the punch 21 forcing them to bend along the creasing lines 3 which separate them from the walls 6.

On remarque que le poinçon 21 présente des logements 22 dont la profondeur est sensiblement égale à l'épaisseur du carton constituant le premier flan 1, afin de pouvoir contenir les pattes 7 et les presser contre le deuxième flan 10 (figure 4).Note that the punch 21 has housings 22 whose depth is substantially equal to the thickness of the cardboard constituting the first blank 1, in order to be able to contain the tabs 7 and press them against the second blank 10 (Figure 4).

On comprend que le deuxième flan 10 enserre chaque élément par sa périphérie déterminée par les parois 6, redressées du fond 5 perpendiculairement à lui.It is understood that the second blank 10 encloses each element by its periphery determined by the walls 6, straightened from the bottom 5 perpendicularly to it.

Cependant, cela n'est pas suffisant pour assurer la fixation des éléments sur le deuxième flan 10.However, this is not sufficient to ensure the fixing of the elements on the second blank 10.

Cette fixation peut être obtenue par collage, notamment en prévoyant un adhésif soit sous le premier flan 1, soit sur le deuxième flan 10. Mais, étant donné le mouvement de glissement relatif des deux flans l'un sur l'autre lors du formage des éléments, il faut éviter un collage irrégulier et l'on peut, par exemple, prévoir un adhésif sec thermoactif qui n'est rendu effectif qu'après formage des éléments, par chauffage du poinçon, ce qui est à la portée de l'homme de métier.This fixing can be obtained by gluing, in particular by providing an adhesive either under the first blank 1, or on the second blank 10. But, given the relative sliding movement of the two blanks one on the other during the forming of the elements, irregular bonding must be avoided and one can, for example, provide a dry thermoactive adhesive which is made effective only after forming the elements, by heating the punch, which is within the reach of man business.

Quand ces opérations sont terminées, le composant terminé se présente sur une face comme représenté sur la figure 6 et par son autre face comme représenté sur la figure 7.When these operations are completed, the finished component is presented on one side as shown in FIG. 6 and by its other side as shown in FIG. 7.

La face "utile" est, ici, celle qui présente la partie convexe des éléments car on utilise les éléments en relief comme calage pour des objets devant être immobilisés dans un contenant de tout type connu tel qu'une boîte, un coffret ou un étui. On a représenté en pointillés sur la figure 6 un tel objet A bloqué par quatre éléments.The "useful" side is, here, that which presents the convex part of the elements because the elements in relief are used as wedging for objects to be immobilized in a container of any known type such as a box, a box or a case. . There is shown in dotted lines in FIG. 6 such an object A blocked by four elements.

Sur son autre face, le composant présente la partie concave des éléments et les pattes 7 collées au deuxième flan 10.On its other face, the component has the concave part of the elements and the tabs 7 glued to the second blank 10.

Pour certaines applications, on peut se contenter de laisser apparentes les pattes 7, comme cela se voit sur la figure 7, ce qui est le cas lorsque l'ensemble flan 10-éléments est collé contre une paroi car, alors, la face apparente sur la figure 7 reste dissimulée.For certain applications, it is sufficient to leave the legs 7 visible, as can be seen in FIG. 7, which is the case when the 10-element blank assembly is glued against a wall because, then, the visible face on Figure 7 remains concealed.

Pour d'autres applications, on ne peut se contenter de cet aspect brut et il faut soigner la finition, ce que l'on obtient en appliquant un panneau 40 uni ou décoré et qui, de toutes façons, cache toute la face du deuxième flan et les pattes collées 7.For other applications, we cannot be satisfied with this raw appearance and care must be taken over the finish, which is obtained by applying a plain or decorated panel 40 which, in any case, hides the entire face of the second blank. and glued legs 7.

Les pattes 7 étant en surépaisseur sur le deuxième flan 10, le panneau 40 est appliqué sur une surface d'autant plus irrégulière que le carton constituant le premier flan 1 est plus épais, ce qui peut provoquer des ondulations inesthétiques du panneau 40, comme on l'évoque sur la figure 9.The tabs 7 being in excess thickness on the second blank 10, the panel 40 is applied to a surface all the more irregular as the cardboard constituting the first blank 1 is thicker, which can cause unsightly undulations of the panel 40, as evokes it in figure 9.

Pour atténuer ce défaut, on conserve le maximum de surface lors du marquage du premier flan 1.To mitigate this defect, the maximum surface area is retained when marking the first blank 1.

En se reportant à la figure 1, on voit qu'il est possible, par exemple, de conserver les parties de carton 15 qui avaient été retirées pour laisser apparaître des ouvertures 4 en forme de losange, de plus grande étendue que les petites ouvertures carrées (figure 8).Referring to Figure 1, we see that it is possible, for example, to keep the cardboard parts 15 which had been removed to reveal diamond-shaped openings 4, larger than the small square openings (figure 8).

Il est également possible de laisser subsister un cadre 16 présentant des parties triangulaires 17 équivalents à des demi-losanges 15, ainsi que des parties linéaires 18 et des languettes 19.It is also possible to leave a frame 16 having triangular parts 17 equivalent to half-diamonds 15, as well as linear parts 18 and tongues 19.

Le tout provenant du premier flan 1, a évidemment la même épaisseur que les pattes 7 et vient compenser en grande partie les espaces laissées par le retrait des fonds 5 et des parois latérales 6 lors du formage des éléments.The whole coming from the first blank 1, obviously has the same thickness as the tabs 7 and largely compensates for the spaces left by the withdrawal of the bottoms 5 and the side walls 6 during the forming of the elements.

Le panneau 40 présente alors peu ou pas d'ondulations, comme on l'évoque sur la figure 10.The panel 40 then has little or no ripples, as shown in FIG. 10.

On remarque sur les figures 7 à 10 que le panneau 40 recouvre l'ouverture de la partie concave des éléments, ce qui suppose que l'on considère leur partie convexe comme seule partie utile, ce qui est bien le cas lorsque l'on utilise le composant comme calage (figure 6).Note in FIGS. 7 to 10 that the panel 40 covers the opening of the concave part of the elements, which supposes that we consider their convex part as the only useful part, which is indeed the case when using the component as timing (figure 6).

Mais l'on pourrait aussi utiliser les parties concaves des éléments comme des alvéoles destinés à recevoir un ou plusieurs articles, ou bien un produit en vrac.But one could also use the concave parts of the elements such as cells intended to receive one or more articles, or else a bulk product.

Dans ce cas, le panneau 40 doit être traversé d'ouvertures centrées sur les éléments afin de cacher les pattes 7 tout en laissant libre l'accès à l'intérieur des éléments.In this case, the panel 40 must be traversed by openings centered on the elements in order to hide the tabs 7 while leaving free access to the interior of the elements.

Sur les figures 7 à 10, le panneau 40 est un panneau indépendant, rapporté et fixé sur les flans 1 et 10.In FIGS. 7 to 10, the panel 40 is an independent panel, attached and fixed to the blanks 1 and 10.

Sur la figure 11, on a représenté une variante de réalisation du panneau de recouvrement qui consiste à prévoir un deuxième flan 10 de longueur à peu près double pour disposer de deux parties 10a et 10b séparées par une ligne de pliage transversale 10c.In FIG. 11, an alternative embodiment of the covering panel is shown, which consists in providing a second blank 10 of approximately double length in order to have two parts 10 a and 10 b separated by a transverse fold line 10 c .

Après formation des éléments et retrait de l'ensemble du conformateur, le deuxième flan 10 est alors plié selon la ligne 10c, comme indiqué par la flêche, pour être appliqué sur le premier flan 1 et sur le verso de sa partie 10a.After forming the elements and removing the entire shaper, the second blank 10 is then folded along line 10 c , as indicated by the arrow, to be applied to the first blank 1 and to the back of its part 10 a .

Ici, on a illustré le cas où l'on souhaite accéder à l'intérieur des éléments, en prévoyant des ouvertures 10d centrées chacune sur un élément, la partie 10b du deuxième flan 10 ne devant masquer que les pattes 7.Here, we have illustrated the case where it is desired to access the interior of the elements, by providing openings 10 d each centered on an element, the part 10 b of the second blank 10 should only mask the tabs 7.

En se reportant maintenant aux figures 12 à 15, on voit un élément conforme à l'invention constitué par une barquette simple, issue d'un flan 50 découpé et éventuellement imprimé, représenté sur la figure 12.Referring now to FIGS. 12 to 15, an element according to the invention is seen, consisting of a simple tray, coming from a blank 50 cut out and possibly printed, represented in FIG. 12.

Sur ce flan 50, on pratique des lignes de prédécoupe longitudinales 51 et transversales 52 ainsi que des lignes de rainage.On this blank 50, longitudinal precut lines 51 and transverse lines 52 are practiced as well as crease lines.

Des lignes de rainage 53 déterminent, pour la barquette devant résulter de chaque ébauche, un fond 54 et des parois latérales opposées 55 et 56, tandis que des lignes de rainage 57 déterminent des segments opposés 58 et 59 devant déterminer un cadre comme on va le décrire ci-après.Crease lines 53 determine, for the tray to result from each blank, a bottom 54 and opposite side walls 55 and 56, while crease lines 57 determine opposite segments 58 and 59 to determine a frame as will be seen. describe below.

Après avoir pratiqué ces lignes de prédécoupe 51 et 52 ainsi que ces lignes de rainage 53 et 57, on procède à la mise en forme des ébauches.After having made these pre-cut lines 51 and 52 as well as these crease lines 53 and 57, the blanks are shaped.

Pour cela, on dispose le flan 50 tout entier en regard d'un conformateur que l'on ne décrira pas en détails car il est du même type que celui décrit en regard des figures 3 et 4.For this, the entire blank 50 is placed opposite a shaper which will not be described in detail since it is of the same type as that described with regard to FIGS. 3 and 4.

Lorsque les poinçons agissent, ils provoquent le pliage des parois 55 et 56 "vers le haut" pour border le fond 54 et le pliage opposé "vers le bas" des segments 58 et 59, après que les ébauches se soient séparées les unes des autres par rupture des lignes de prédécoupe 51 et 52, sous l'effet de la poussée que chaque poinçon exerce sur chaque ébauche, à l'aplomb du fond 54.When the punches act, they cause the folding of the walls 55 and 56 "upwards" to border the bottom 54 and the opposite folding "downwards" of the segments 58 and 59, after the blanks have separated from each other by breaking the precut lines 51 and 52, under the effect of the thrust that each punch exerts on each blank, perpendicular to the bottom 54.

Comme expliqué précédemment, la rupture des lignes de prédécoupe 51 et 52 se fait par traction parallélement au plan du flan 50, alors que la poussée des poinçons s'exerce perpendiculairement à ce même plan.As explained above, the breaking of the precut lines 51 and 52 is effected by traction parallel to the plane of the blank 50, while the thrust of the punches is exerted perpendicular to this same plane.

Par conséquent, on met en oeuvre une seule opération sur un seul flan 50 alors que l'on obtient une pluralité de barquettes mises en volume.Consequently, a single operation is carried out on a single blank 50 while a plurality of trays placed in volume are obtained.

Le maintien en volume est obtenu par collage des segments voisins 58 et 59 rapprochés lors du formage des barquettes, ou plus généralement par tout moyen d'assemblage et, notamment, par thermoadhésion.Maintaining volume is obtained by bonding neighboring segments 58 and 59 close together during the formation of the trays, or more generally by any means of assembly and, in particular, by thermoadhesion.

Avant passage au conformateur, le flan 50 présente donc une pluralité d'ébauches fixées les unes aux autres et après passage au conformateur, on obtient des barquettes individuelles et indépendantes les unes des autres qui se présentent chacune comme cela est représenté sur les figures 13 à 15.Before passing to the shaper, the blank 50 therefore has a plurality of blanks fixed to each other and after passing to the shaper, individual and independent trays are obtained which are each presented as shown in FIGS. 13 to 15.

On voit que la longueur des segments 58 d'une part et la longueur des segments 59 d'autre part sont calculées pour qu'un segment 59 recouvre l'extrémité des deux segments 58 contigus après formage.It can be seen that the length of the segments 58 on the one hand and the length of the segments 59 on the other hand are calculated so that a segment 59 covers the end of the two contiguous segments 58 after forming.

Ce recouvrement est utilisé pour fixer entre eux les segments 58 et 59, notamment par collage.This covering is used to fix the segments 58 and 59 together, in particular by gluing.

En se reportant maintenant aux figures 16 a 19, on voit un élément conforme à l'invention constitué par une barquette simple, issue d'un flan 60 découpé et éventuellement imprimé, représenté sur la figure 16.Referring now to FIGS. 16 to 19, an element according to the invention is seen, consisting of a simple tray, coming from a blank 60 cut out and possibly printed, represented in FIG. 16.

Sur ce flan 60, on pratique des lignes de prédécoupe longitudinales 61 et transversales 62 ainsi que des lignes de rainage.On this blank 60, longitudinal precut lines 61 and transverse lines 62 are practiced as well as crease lines.

Des lignes de rainage 63 déterminent, pour la barquette devant résulter de chaque ébauche, un fond 64 et des parois latérales opposées 65 et 66, tandis que des lignes de rainage 67 déterminent des pattes de collage 68 et 69 devant coopérer avec un cadre comme on va le décrire ci-après.Crease lines 63 determine, for the tray to result from each blank, a bottom 64 and opposite side walls 65 and 66, while crease lines 67 determine glue tabs 68 and 69 to cooperate with a frame as will describe it below.

Après avoir pratiqué ces lignes de prédécoupe 61 et 62 ainsi que ces lignes de rainage 63 et 67, on procède à la mise en forme des ébauches.After having made these precut lines 61 and 62 as well as these crease lines 63 and 67, the blanks are shaped.

Pour cela, on dispose le flan 60 tout entier en regard d'un conformateur que l'on ne décrira pas en détails car il est du même type que celui décrit en regard des figures 3 et 4.For this, the entire blank 60 is placed opposite a shaping device which will not be described in detail since it is of the same type as that described with regard to FIGS. 3 and 4.

Lorsque les poinçons agissent, ils provoquent le pliage des parois 65 et 66 "vers le haut" pour border le fond 64 et le pliage opposé "vers le bas" des pattes 68 et 69, après que les ébauches se soient séparées les unes des autres par rupture des lignes de prédécoupe 61 et 62, sous l'effet de la poussée que chaque poinçon exerce sur chaque ébauche, à l'aplomb du fond 64.When the punches act, they cause the folding of the walls 65 and 66 "upwards" to border the bottom 64 and the opposite folding "downwards" of the legs 68 and 69, after the blanks have separated from each other by breaking the precut lines 61 and 62, under the effect of the thrust that each punch exerts on each blank, directly above the bottom 64.

Comme expliqué précédemment, la rupture des lignes de prédécoupe 61 et 62 se fait par traction parallèlement au plan du flan 60, alors que la poussée des poinçons s'exerce perpendiculairement à ce même plan.As explained above, the breaking of the precut lines 61 and 62 is effected by traction parallel to the plane of the blank 60, while the thrust of the punches is exerted perpendicular to this same plane.

Par conséquent, on met en oeuvre une seule opération sur un seul flan 60 alors que l'on obtient une pluralité de barquettes mises en volume, celles-ci, néanmoins n'étant pas simultanément maintenues en volume, contrairement au mode de réalisation des figures 12 à 15.Consequently, a single operation is carried out on a single blank 60 while a plurality of trays placed in volume is obtained, these, nevertheless not being simultaneously maintained in volume, unlike the embodiment of the figures 12 to 15.

Le maintien en volume est obtenu, ici, par collage des pattes 68 et 69, repliées lors du formage des barquettes, contre un cadre 70 issu d'un second flan (non représenté).Maintaining volume is obtained, here, by bonding the legs 68 and 69, folded during the formation of the trays, against a frame 70 from a second blank (not shown).

Ce second flan comprend autant de cadres qu'il y a d'ébauches de barquettes sur le flan 60. La partie centrale de chaque cadre 70 est évidée et ils tiennent les uns aux autres par leurs bords.This second blank comprises as many frames as there are blanks of trays on the blank 60. The central part of each frame 70 is hollowed out and they hold to each other by their edges.

Avant passage au conformateur, les deux flans sont superposés et lors du formage des ébauches de barquettes, elles pénétrent dans la partie centrale évidée des cadre 70, les pattes 68 et 69 s'appliquant chacune contre l'un des côtés du cadre et y étant fixées, notamment par collage simultané.Before passing to the shaper, the two blanks are superimposed and during the forming of the blanks of trays, they penetrate into the hollowed-out central part of the frame 70, the tabs 68 and 69 each applying against one of the sides of the frame and being there fixed, in particular by simultaneous bonding.

A noter qu'avec ce mode de réalisation, les cadres ne sont pas séparés les uns des autres automatiquement puisqu'ils ne subissent aucun effort de traction dans leur plan puisqu'ils ne subissent aucune formation, aucune déformation.Note that with this embodiment, the frames are not separated from each other automatically since they do not undergo any tensile force in their plane since they undergo no training, no deformation.

Il faut donc les découper, ce qui est obtenu facilement comme le pratique couramment l'homme de métier, en munissant l'emboutisseur de lames coupantes et la matrice de leurs contreparties habituelles.It is therefore necessary to cut them, which is easily obtained as is commonly practiced by those skilled in the art, by providing the stamper with cutting blades and the die with their usual counterparts.

La présence de lignes de prédécoupes séparant les cadres les uns des autres n'est donc pas indispensables avec ce mode de réalisation.The presence of pre-cut lines separating the frames from each other is therefore not essential with this embodiment.

En se reportant maintenant aux figures 20 à 22, on voit un mode de réalisation de l'invention permettant d'obtenir un plateau alvéolé pour le calage individuel de petits articles tels que des bonbons et confiseries.Referring now to Figures 20 to 22, we see an embodiment of the invention to obtain a honeycomb tray for the individual wedging of small items such as candies and confectionery.

Ce plateau est obtenu en une seule opération de formage, à partie de deux flans coordonnés.This plate is obtained in a single forming operation, from two coordinated blanks.

Sur la figure 20, on voit un premier flan 80, présentant une pluralité d'ébauches et entaillé, à cet effet, de lignes de découpes parallèles 81 et de lignes de découpe 82 perpendiculaires aux précédentes et reliées par une ligne oblique 83, donnant à cet ensemble de trois lignes 82-83 une forme sensiblement en "Z".In FIG. 20, we see a first blank 80, presenting a plurality of blanks and notched, for this purpose, with parallel cut lines 81 and cut lines 82 perpendicular to the previous ones and connected by an oblique line 83, giving this set of three lines 82-83 has a substantially "Z" shape.

Des lignes de rainage 84 parallèles entre elles, joignent les extrémités de deux lignes de découpe 81 et des lignes de rainage 85 prolongeant les lignes de découpe 82 jusqu'à la ligne de découpe 81 voisine.Crease lines 84 parallel to each other join the ends of two cut lines 81 and crease lines 85 extending the cut lines 82 to the neighboring cut line 81.

Les lignes de découpe 81 et les lignes de rainage 84 déterminent ensemble un cadre 86 dont les côtés sont réunis par des segments perpendiculaires, ce cadre 86 étant destiné à rester plan et en une seule pièce.The cutting lines 81 and the creasing lines 84 together define a frame 86 whose sides are joined by perpendicular segments, this frame 86 being intended to remain flat and in one piece.

On distingue ainsi, pour chaque ébauche, deux parois opposées 87 et deux volets trapézoïdaux 88.There are thus, for each blank, two opposite walls 87 and two trapezoidal flaps 88.

Sur la figure 21, on voit un second flan 90 traversé d'ouvertures 91, entaillé de lignes de découpe 92 réunissant, pour chaque ébauche, deux ouvertures 91 et marqué de lignes de rainage parallèles 93 a raison de quatre par ébauche.In Figure 21, we see a second blank 90 crossed with openings 91, notched with cutting lines 92 joining, for each blank, two openings 91 and marked with parallel creasing lines 93 at a rate of four per blank.

Le grand côté extérieur des ouvertures 91 et les lignes de rainage extérieures 93, déterminent un cadre 94 dont les côtés sont réunis par des segments perpendiculaires, ce cadre 94 étant destiné à rester plan et en une seule pièce.The large outer side of the openings 91 and the outer crease lines 93, define a frame 94 whose sides are joined by perpendicular segments, this frame 94 being intended to remain flat and in one piece.

On distingue ainsi, pour chaque ébauche, deux parois trapézoïdales opposées 95 et deux volets rectangulaires 96.There are thus, for each blank, two opposite trapezoidal walls 95 and two rectangular flaps 96.

Pour le formage de l'ensemble du plateau alvéolé, on superpose les deux flans 80 et 90 dont les cadres respectivement 86 et 94 se superposent parfaitement, ainsi que les segments perpendiculaires qui réunissent leurs côtés, de telle sorte que les parois 95 et les volets 96 sont placés sur et contre les parois 87 et les volets 88.For the forming of the entire honeycomb plate, the two blanks 80 and 90 are superimposed, the frames 86 and 94 respectively of which are perfectly superimposed, as well as the perpendicular segments which join their sides, so that the walls 95 and the flaps 96 are placed on and against the walls 87 and the flaps 88.

La poussée du conformateur a pour effet d'agir simultanément sur les deux flans, de telle manière que les parois 95 se plient "vers le bas" selon les lignes extérieures 93 et poussent les parois 87 qui se plient de la même manière selon les lignes 84, tandis que les volets 96 se séparent selon la ligne 92, restent parallèles à eux-mêmes grâce aux lignes 93 intérieures et poussent les volets 88. Ceux-ci se séparent selon la ligne en Z 82-83-82 et restent parallèles à eux-mêmes grâce aux lignes 85.The pushing of the conformator has the effect of acting simultaneously on the two blanks, so that the walls 95 fold "downwards" along the outer lines 93 and push the walls 87 which fold in the same way along the lines 84, while the flaps 96 separate along the line 92, remain parallel to themselves thanks to the interior lines 93 and push the flaps 88. These separate along the line in Z 82-83-82 and remain parallel to themselves through lines 85.

Ainsi, pour chaque alvéole résultant d'une ébauche, on obtient un cadre 86-94, quatre parois latérales 87-95 et un pourtour de fond formé de quatre volets 88-96.Thus, for each cell resulting from a blank, one obtains a frame 86-94, four side walls 87-95 and a bottom periphery formed by four flaps 88-96.

Le fond de chaque alvéole n'est donc pas intégral, mais présente une ouverture centrale 100.The bottom of each cell is therefore not integral, but has a central opening 100.

Ce mode de réalisation peut être adopté pour réaliser un plateau alvéolé destiné au calage et à la présentation de petits objets solides qui sont compatibles avec la présence de l'ouverture 100 du fond de chaque alvéole.This embodiment can be adopted to produce a honeycomb tray intended for wedging and for the presentation of small solid objects which are compatible with the presence of the opening 100 in the bottom of each cell.

C'est le cas, en particulier, des confiseries de chocolat.This is the case, in particular, for chocolate confectionery.

L'invention trouve de nombreuses applications, tant dans les produits alimentaires que non alimentaires, surtout lorsque l'on veut obtenir à la fois un calage efficace et une bonne présentation.The invention finds numerous applications, both in food and non-food products, especially when it is desired to obtain both an efficient setting and a good presentation.

Claims (21)

1- Procédé d'obtention de composants pour contenants en carton ou matière analogue, du type selon lequel on crée des éléments dans un flan par prédécoupe de lignes et par rainage d'autres lignes, on place le flan en regard d'un conformateur comprenant une matrice concave et un emboutisseur convexe, on met le flan en forme dans la matrice au moyen de l'emboutisseur, on maintient en forme le flan notamment par collage de parties rapprochées, on sépare la matrice de l'emboutisseur et l'on retire le flan, caractérisé en ce que l'on utilise un flan dont les dimensions sont supérieures à celles d'un élément développé, on crée les lignes de prédécoupe et les lignes de rainage afin de déterminer plusieurs éléments tenant les uns aux autres par des lignes de prédécoupe, on place le flan tout entier en regard d'un conformateur dont la matrice d'une part et l'emboutisseur d'autre part comprennent respectivement autant d'alvéoles et autant de poinçons qu'il y a d'éléments, y compris un seul, on met le flan en forme tout en provoquant la séparation des différents éléments par fracture du flan le long des lignes de prédécoupe par lesquelles les éléments tiennent les uns aux autres afin de former individuellement des éléments indépendants présentant une partie concave et une partie convexe formées par des parois latérales et par un fond. 1- Method for obtaining components for cardboard containers or the like, of the type according to which elements are created in a blank by pre-cutting lines and by creasing other lines, the blank is placed opposite a conforming device comprising a concave matrix and a convex stamper, the blank is shaped in the matrix by means of the stamper, the blank is kept in shape in particular by bonding close parts, the matrix is separated from the stamper and removed the blank, characterized in that a blank whose dimensions are greater than those of a developed element is used, the precut lines and the crease lines are created in order to determine several elements holding to each other by lines of precut, the entire blank is placed opposite a shaping machine whose die on the one hand and the stamper on the other hand comprise respectively as many cells and as many punches as there are elements ents, including only one, the blank is shaped while causing the separation of the different elements by fracturing the blank along the precut lines by which the elements hold to each other in order to individually form independent elements having a part concave and a convex part formed by side walls and by a bottom. 2- Procédé selon la revendication 1, caractérisé en ce que l'on maintient chaque élément en volume indépendamment des autres, par collage de pattes mises en regard lors du formage. 2- A method according to claim 1, characterized in that each element is maintained in volume independently of the others, by bonding tabs facing each other during forming. 3- Procédé selon la revendication 1, caractérisé en ce que, dans un deuxième flan, on crée autant de découpes qu'il y a d'éléments déterminés dans le premier flan, on place le deuxième flan dans la matrice de telle sorte que les découpes soient en regard des alvéoles, on place le premier flan sur le deuxième, on met en forme tous ces éléments en provoquant le repliement de parois latérales faisant partie de chaque élément et l'on fait pénétrer chaque élément indépendant dans une découpe du deuxième flan afin que celui-ci maintienne en volume tous les éléments, puis on fixe les éléments audit deuxième flan. 3- A method according to claim 1, characterized in that , in a second blank, as many cuts are created as there are elements determined in the first blank, the second blank is placed in the matrix so that the cuts are facing the cells, the first blank is placed on the second, all of these elements are shaped by causing the side walls forming part of each element to be folded over and each independent element is made to penetrate a cutout of the second blank so that it maintains in volume all the elements, then the elements are fixed to said second blank. 4- Procédé selon la revendication 3, caractérisé en ce que l'on fixe chaque élément au deuxième flan par collage de pattes que chacun présente après formage. 4- A method according to claim 3, characterized in that each element is fixed to the second blank by bonding tabs that each has after forming. 5- Procédé selon la revendication 3, caractérisé en ce que l'on applique un panneau contre la face du deuxième flan sur laquelle apparaissent les parties concaves des éléments en emprisonnant entre lui et le deuxième flan des pattes que chaque élément présente après formage, puis l'on fixe le panneau au deuxième flan, notamment par collage. 5- Method according to claim 3, characterized in that one applies a panel against the face of the second blank on which the concave parts of the elements appear by trapping between it and the second blank of the legs that each element presents after forming, then the panel is fixed to the second blank, in particular by gluing. 6- Procédé selon la revendication 5, caractérisé en ce que le panneau est constitué par un troisième flan, indépendant des deux premiers. 6- A method according to claim 5, characterized in that the panel is constituted by a third blank, independent of the first two. 7- Procédé selon la revendication 5, catactérisé en ce que l'on donne au deuxième flan une largeur sensiblement égale à celle du premier flan et une longueur sensiblement double de celle du premier flan, on plie le deuxième flan transversalement à lui-même et on l'applique sur les deux faces du premier flan qui est alors pris "en sandwich", la partie du deuxième flan qui est appliquée contre la face du premier flan sur laquelle apparaissent les parties concaves des éléments, constituant le panneau. 7- A method according to claim 5, characterized in that the second blank is given a width substantially equal to that of the first blank and a length substantially double that of the first blank, the second blank is folded transversely to itself and it is applied to the two faces of the first blank which is then taken "in sandwich" form, the part of the second blank which is applied against the face of the first blank on which the concave parts of the elements appear, constituting the panel. 8- Procédé selon la revendication 5, caractérisé en ce que le panneau est plein et recouvre les parties concaves des éléments. 8- A method according to claim 5, characterized in that the panel is full and covers the concave parts of the elements. 9- Procédé selon la revendication 5, caractérisé en ce que le panneau présente des ouvertures dont les dimensions et les positions correspondent aux parties concaves des éléments. 9- A method according to claim 5, characterized in that the panel has openings whose dimensions and positions correspond to the concave parts of the elements. 10- Procédé selon la revendication 5, caractérisé en ce que l'on applique les pattes en surépaisseur contre le deuxième flan et l'on fixe des cales de même épaisseur sur ledit deuxième flan, entre les pattes, afin que l'on puisse appliquer le panneau aussi uniformément que possible, à la fois sur les pattes et sur les cales. 10- Method according to claim 5, characterized in that one applies the legs in excess thickness against the second blank and one fixes shims of the same thickness on said second blank, between the legs, so that one can apply the panel as evenly as possible, both on the legs and on the shims. 11- Procédé selon la revendication 10, caractérisé en ce que l'on découpe dans le même deuxième flan les éléments et les cales en les séparant par des lignes de prédécoupe, que l'on met les éléments en forme tout en provoquant la séparation desdits éléments et des cales par fracture du deuxième flan le long des lignes de prédécoupe par lesquelles les éléments tiennent aux cales afin de former individuellement les éléments tout en appliquant les cales sur le premier flan. 11- Method according to claim 10, characterized in that one cuts in the same second blank the elements and the shims by separating them by precut lines, that one puts the elements in shape while causing the separation of said elements and wedges by fracturing the second blank along the precut lines by which the elements hold to the wedges to individually form the elements while applying the wedges to the first blank. 12- Procédé selon la revendication 3, caractérisé en ce qu'après formage des éléments, on découpe le deuxième flan autour de chaque élément afin de constituer autant d'ensembles composés chacun d'un élément en volume et d'un cadre sur lequel sont fixées, notamment par collage, des pattes solidaires de chaque paroi latérale. 12- Method according to claim 3, characterized in that after forming the elements, the second blank is cut around each element in order to constitute as many sets each composed of an element in volume and a frame on which are fixed, in particular by gluing, lugs secured to each side wall. 13- Procédé selon la revendication 1, caractérisé en ce que l'on crée des découpes dans deux flans différents, on place les deux flans dans la matrice l'un sur l'autre de telle sorte que les découpes soient en regard des alvéoles, on met en forme tous les éléments en même temps en provoquant le repliement, par rabattement, de parois latérales de chaque élément dont certaines sont prévues sur le premier flan et les autres sur le deuxième flan, et le repliement, par redressement, de volets solidaires des parois latérales afin de constituer un pourtour d'un fond, puis on fixe entre eux au moins certains de ces volets placés en partie l'un sur l'autre. 13- Method according to claim 1, characterized in that cuts are created in two different blanks, the two blanks are placed in the matrix one on the other so that the cuts are facing the cells, all the elements are shaped at the same time by causing the side walls of each element to be folded back, by folding down, some of which are provided on the first blank and the others on the second blank, and the folding, by straightening, of flaps integral with the side walls so as to constitute a periphery of a bottom, then at least some of these flaps are fixed between them placed partly on top of each other. 14- Procédé selon la revendication 13, caractérisé en ce que l'on crée les découpes en ménageant entre elles des séparations formées par des bandes qui constituent un cadre demeurant dans le plan d'origine des flans. 14- A method according to claim 13, characterized in that the cuts are created by providing between them partitions formed by strips which constitute a frame remaining in the plane of origin of the blanks. 15- Composant pour contenants en carton ou matière analogue, du type formé d'une partie d'un flan découpé, rainé, plié, conformé et maintenu en volume, caractérisé en ce qu'il comprend deux parties rendues solidaires, l'une étant constituée par au moins un élément en volume et l'autre par un cadre plan, l'élément en volume présentant au moins un pourtour d'un fond ainsi que des parois latérales solidaires du cadre. 15- Component for containers made of cardboard or similar material, of the type formed from a part of a blank cut, creased, folded, shaped and maintained in volume, characterized in that it comprises two parts made integral, one being constituted by at least one volume element and the other by a planar frame, the volume element having at least one periphery of a bottom as well as side walls integral with the frame. 16- Composant selon la revendication 15, caractérisé en ce que les parois latérales sont solidaires de pattes repliées sur le cadre et fixées à lui en surépaisseur. 16- Component according to claim 15, characterized in that the side walls are integral with legs folded over the frame and fixed to it in excess thickness. 17- Composant selon la revendication 15, caractérisé en ce que des parois latérales sont solidaires d'un premier flan et d'autres parois latérales sont solidaires d'un deuxième flan, certaines au moins de ces parois latérales portant un volet formant une partie d'un pourtour d'un fond. 17- Component according to claim 15, characterized in that side walls are secured to a first blank and other side walls are secured to a second blank, at least some of these side walls carrying a flap forming a part d 'around a bottom. 18- Composant selon la revendication 15, caractérisé en ce qu'il comprend un seul élément en volume et un seul cadre. 18- Component according to claim 15, characterized in that it comprises a single element in volume and a single frame. 19- Composant selon la revendication 15, caractérisé en ce qu'il comprend plusieurs éléments en volume et un seul cadre commun à tous les éléments, ce cadre étant alors constitué par un flan traversé d'au moins autant d'ouvertures qu'il y a d'éléments. 19- Component according to claim 15, characterized in that it comprises several elements in volume and a single frame common to all the elements, this frame then being constituted by a blank crossed by at least as many openings as there has elements. 20- Composant selon la revendication 18, caractérisé en ce que les éléments sont à considérer par leurs partie convexe et constituent des reliefs destinés au maintien d'objets. 20- Component according to claim 18, characterized in that the elements are to be considered by their convex part and constitute reliefs intended for the maintenance of objects. 21- Composant selon la revendication 18, caractérisé en ce que les éléments sont à considérer par leur partie concave et constituent des alvéoles destinés à recevoir des objets. 21- Component according to claim 18, characterized in that the elements are to be considered by their concave part and constitute cells intended to receive objects.
EP95400921A 1994-05-20 1995-04-25 Method for obtaining parts for cardboard containers or similar materials and parts so obtained Expired - Lifetime EP0683035B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9406213 1994-05-20
FR9406213A FR2720973B1 (en) 1994-05-20 1994-05-20 Method for obtaining components for cardboard containers or similar material components and containers obtained.

Publications (2)

Publication Number Publication Date
EP0683035A1 true EP0683035A1 (en) 1995-11-22
EP0683035B1 EP0683035B1 (en) 1998-09-02

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EP95400921A Expired - Lifetime EP0683035B1 (en) 1994-05-20 1995-04-25 Method for obtaining parts for cardboard containers or similar materials and parts so obtained

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EP (1) EP0683035B1 (en)
AT (1) ATE170452T1 (en)
DE (1) DE69504409T2 (en)
ES (1) ES2123925T3 (en)
FR (1) FR2720973B1 (en)

Cited By (7)

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WO1998056571A1 (en) * 1997-06-13 1998-12-17 Tenneco Packaging Specialty And Consumer Products Inc. Tray-forming process and apparatus
WO2002051625A2 (en) * 2000-12-27 2002-07-04 Albany International Techniweave, Inc. Article and method of making
US6527687B1 (en) 1997-12-03 2003-03-04 Peerless Machine & Tool Corporation Pressed paper cut-in-place die
US6733862B2 (en) 2000-12-27 2004-05-11 Albany International Techniweave, Inc. Reinforced article and method of making
US6890612B2 (en) 2000-12-27 2005-05-10 Albany International Techniweave, Inc. Article and method of making
WO2015169280A1 (en) * 2014-05-08 2015-11-12 Technische Univerität Dresden Method and device for producing molded parts from a continuous fiber-material sheet
CN109334101A (en) * 2018-09-28 2019-02-15 上海烟草集团有限责任公司 Process the mold and method of carton folding line

Families Citing this family (2)

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Publication number Priority date Publication date Assignee Title
DE10310852B3 (en) * 2003-03-11 2004-09-16 Karl Linhardt Gmbh Device for embossing and / or punching a workpiece, in particular from cardboard
DE102022119953A1 (en) 2022-08-08 2024-02-08 Van Genechten Packaging N.V. Packaging

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US1782777A (en) * 1927-01-19 1930-11-25 Sanitary Products Corp Of Amer Machine for forming articles from sheet material
JPS57174208A (en) * 1981-04-22 1982-10-26 Niigata Kako Kk Production of louver for cooling tower

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DE51181C (en) * 1900-01-01 J. MOHS in Philadelphia, 251 North 4th Street, V. St. A Box press
US1782777A (en) * 1927-01-19 1930-11-25 Sanitary Products Corp Of Amer Machine for forming articles from sheet material
JPS57174208A (en) * 1981-04-22 1982-10-26 Niigata Kako Kk Production of louver for cooling tower

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998056571A1 (en) * 1997-06-13 1998-12-17 Tenneco Packaging Specialty And Consumer Products Inc. Tray-forming process and apparatus
US5904643A (en) * 1997-06-13 1999-05-18 Tenneco Packaging Tray-forming and apparatus
US6527687B1 (en) 1997-12-03 2003-03-04 Peerless Machine & Tool Corporation Pressed paper cut-in-place die
WO2002051625A2 (en) * 2000-12-27 2002-07-04 Albany International Techniweave, Inc. Article and method of making
WO2002051625A3 (en) * 2000-12-27 2003-01-03 Albany Int Techniweave Inc Article and method of making
US6733862B2 (en) 2000-12-27 2004-05-11 Albany International Techniweave, Inc. Reinforced article and method of making
US6890612B2 (en) 2000-12-27 2005-05-10 Albany International Techniweave, Inc. Article and method of making
US6899941B2 (en) 2000-12-27 2005-05-31 Albany International Techniweave, Inc. Reinforced article and method of making
AU2002231154B2 (en) * 2000-12-27 2006-09-28 Albany International Techniweave, Inc. Article and method of making
WO2015169280A1 (en) * 2014-05-08 2015-11-12 Technische Univerität Dresden Method and device for producing molded parts from a continuous fiber-material sheet
CN109334101A (en) * 2018-09-28 2019-02-15 上海烟草集团有限责任公司 Process the mold and method of carton folding line

Also Published As

Publication number Publication date
FR2720973A1 (en) 1995-12-15
ATE170452T1 (en) 1998-09-15
DE69504409T2 (en) 1999-05-20
EP0683035B1 (en) 1998-09-02
ES2123925T3 (en) 1999-01-16
FR2720973B1 (en) 1996-09-06
DE69504409D1 (en) 1998-10-08

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