EP2155567B1 - Bottle packaging box and corresponding cutouts - Google Patents

Abstract

The invention relates to a packaging box (1) for substantially oblong products (2), each product having an intermediate part (3) of overall width which is greater than those of its ends (4, 5), comprising a bottom (6, 111, 112) and a lid (7; 109, 110, 112) made of cardboard sheet or corrugated cardboard material. The lid (7) comprises two lateral walls (8, 9; 110, 112) connected to one another by an upper wall (110, 109), the bottom and the upper wall having a width which is smaller than or equal to said overall width and the lateral walls (8, 9) being perforated by apertures (11) spaced apart at regular intervals opposite one another, arranged to allow the respective intermediate parts (3) of said products to be tightly packed.

Description

The present invention relates to a packaging box for substantially oblong products such as bottles or bottles of glass or plastic, each product having an intermediate portion of overall width greater than that of its ends, the box comprising a bottom and a cap in cardboard sheet material or corrugated cardboard.

It also relates to a blank or a set of blanks for obtaining such a packaging box.

Methods for packaging products in bottles or plastic bottles in particular (such as shampoos, creams, shower gels, etc.) which use a shrink film with or without a support cardboard plate, most often by batch, are already known. from four to ten products.

Such packaging makes it possible to limit the width of the package, which in fact corresponds substantially to that of the bottles themselves, the plastic film being of a very thin thickness.

This type of packaging, however, has disadvantages.

Indeed, the plastic film must be torn for the shelving of the products and their placement one by one in the shelves. This leads to loss of time related to the many manipulations to which are added the difficulties to store the products in an aligned manner.

There is also a lack of orientation and / or the risk of falls due to a lack of stability when a consumer delivers a product on the shelf.

The palatability of filmed products is more unstable, the film tends to relax over time. It may also have been poorly manufactured and / or poorly put in place during the formation of the packaging, given the sometimes random conditions of shrinkage related to the temperature of the furnace upstream, to untimely differences in the speed of movement of plastic films during their continuous installation, or even the quality of the plastic used, often poorly controlled.

Finally, although with such packaging the products are almost covered with plastic, the dust manages to be deposited on the products during the long-term storage, taking into account the existence of electrostatic phenomena.

In conclusion, if the advantages of the plastic film in relation to a carton-type packaging are in particular the low cost of the materials and the high packaging rates, this has inconvenient disadvantages.

Also known cardboard packaging in the form of tray with cap, or in the form of wrap, which do not have the disadvantages of the plastic film mentioned above but which are not all that satisfactory, because too cumbersome.

Such packages have indeed extra thicknesses when they are paled side by side.

As a result, the total width of a packaging layer is greater than with plastic films.

But this extra thickness compared to plastic packaging specifically designed to optimize pallet storage values is unacceptable.

Indeed, there is up to five centimeters difference in cumulative, which results in usable volume losses, no packaging can not be cantilevered astride a pallet edge.

We also know ( FR 2-215-354 ) packaging sheets for embedding the products, but in addition that they require a complex apparatus to be closed on the products, they do not allow the stability and rigidity necessary for good palletizing.

The present invention therefore aims first of all to overcome the disadvantages mentioned above of the types of packaging of the prior art, whether in the form of plastic film or cardboard, while having their advantages.

It is further noted that users have increasing demands for packaging type "ready to sell", ie easy to put on the shelf and promoting the products, which will be possible with the present invention.

It therefore aims to provide a packaging box and a set of cuts better than those previously known to the requirements of practice, in particular in that it allows the grouping of products on a partially printed support, which can be placed on the shelf and thus ensure promotion of products, and this by dispensing with non-ecological retractable films, while retaining their logistical advantages, namely not to degrade the filling rate of products on pallet because of the extra thicknesses related to cardboard.

It also aims to improve the holding of the products on said pallets and to produce a package whose overall width does not exceed that of the products.

This makes it possible not to create space between the products in linear and therefore optimize the filling rate of the shelves in distribution stores, while minimizing the amount of cardboard consumed.

For this purpose the present invention essentially provides a packaging box for substantially oblong products, each product having an intermediate portion of overall width greater than those of its ends, comprising a bottom and a cap made of cardboard sheet or corrugated material , characterized in that the cap comprises two side walls interconnected by an upper wall, the bottom and the upper wall being of width less than or equal to said overall width and the side walls being perforated by openings regularly distributed in screws to screws arranged to allow the embedding of the respective intermediate parts of said products.

In other words, the invention proposes a packaging box whose cap covers the products and keeps them grouped rigidly, being perforated in various places so that the shoulders of products at the level in their greatest width pass through perforated areas.

Also and in other words, a package is proposed comprising on the one hand products as described, and on the other hand a box with perforated walls in which said products are embedded as indicated above.

As a result, although the products are grouped under a cap and on a tray which keep them stable to be palletized and transported, the outer dimensions of the batch on its periphery are identical or inferior to those of the single product of predetermined size, without the cap. and / or the tray. There is therefore no extra thickness compared to a bundling film and therefore no additional cost of logistics.

Advantageously, the bottom is in the form of a base with vertical or substantially vertical walls.

It is thus also proposed a packaging box for several substantially oblong products, comprising a bottom and a cap, characterized in that the bottom is in the form of a base with vertical walls to a given height, to wrap at least partly a first end of the products, and having a first predetermined width, in that the cap comprises two side walls interconnected by an upper wall provided with locking means regularly distributed for the respective second end of each of the products and having a second determined equal width or substantially equal to the first determined width, said side walls being perforated by openings regularly distributed to the right of the corresponding blocking means, to allow lateral embedding of said products.

• la paroi supérieure est régulièrement ajourée par des ouvertures régulièrement réparties et agencées pour permettre l'encastrement des extrémités supérieures respectives des produits, lesdites ouvertures formant ainsi les moyens de blocage des deuxièmes extrémités ;
• le fond et la coiffe sont d'une pièce ;
• la boîte est formée d'une découpe comprenant une suite de quatre volets, à savoir un volet principal formant le fond muni latéralement sur ses deux bords libres de rabats avec languettes d'extrémité, deux volets latéraux respectivement rattachés de part et d'autre au volet principal formant les parois latérales ajourées, et un volet d'extrémité rattaché à un des volets latéraux formant la paroi supérieure, l'autre volet latéral et/ou ledit volet d'extrémité, étant muni d'une languette de collage ;
• l'emballage comprend deux éléments séparables manuellement l'un de l'autre formés à partir de découpes, à savoir un premier élément formant le fond et un second élément formant la coiffe ;
• le premier élément formant le fond constitue une barquette présentoir formée d'une paroi centrale reliée à quatre parois latérales fixées entre elles perpendiculairement à la paroi centrale par l'intermédiaire de rabats d'extrémité ;
• le second élément est formé d'une découpe comprenant une suite de trois volets, à savoir un volet central formant la paroi supérieure et deux volets latéraux formant les parois latérales dont les parties périphériques inférieures sont fixées respectivement sur les deux parois latérales en vis à vis de la barquette ;
• les parties périphériques inférieures comportent une languette frangible permettant la désolidarisation barquette/coiffe par arrachage ;
• les parties périphériques inférieures des parois latérales de la coiffe et les parois latérales de la barquette comportent des moyens de fixation de l'un avec l'autre par encliquetage ;
• les parois latérales de la coiffe comportent à leur périphérie des languettes de collage propres à se rabattre et à être collées sous le fond de la barquette ;
• la boîte comporte des retours intérieurs avec échancrures propres à assurer le calage des extrémités des produits.

In advantageous embodiments, one and / or the other of the following provisions is also used:

• the upper wall is regularly perforated by regularly distributed openings and arranged to allow the embedding of the respective upper ends of the products, said openings thus forming the locking means of the second ends;
• the bottom and the cap are of a piece;
• the box is formed of a cutout comprising a sequence of four flaps, namely a main flap forming the bottom provided laterally on its two free edges flaps with end tabs, two side flaps respectively attached to both sides to main flap forming the perforated side walls, and an end flap attached to one of the side flaps forming the top wall, the other side flap and / or said end flap being provided with a gluing tab;
• the package comprises two manually separable elements formed from cutouts, namely a first element forming the bottom and a second element forming the cap;
• the first element forming the bottom constitutes a display tray formed of a central wall connected to four side walls fixed together perpendicularly to the central wall by means of end flaps;
• the second element is formed of a cutout comprising a series of three shutters, namely a central flap forming the upper wall and two lateral flaps forming the side walls whose lower peripheral parts are respectively fixed on the two side walls facing each other; of the tray;
• the lower peripheral parts comprise a frangible tongue allowing the disconnection tray / cap by tearing;
• the lower peripheral parts of the side walls of the cap and the side walls of the tray comprise means for fixing one with the other by snapping;
• the side walls of the cap have at their periphery gluing tabs adapted to fall back and be glued under the bottom of the tray;
• the box has internal returns with notches adapted to ensure the wedging of the ends of the products.

The invention also proposes a blank or a set of blanks made of cardboard or corrugated board materials for the constitution of a packaging box as described above.

It also proposes a blank or a set of blanks made of cardboard or corrugated cardboard material for the constitution of a packaging box provided with a bottom and a cap for substantially oblong products, each product having an intermediate portion of overall width greater than that of its ends, comprising a shutter suitable for forming the bottom and a series of three shutters adapted to form the cap, characterized in that the following comprises two lateral flaps adapted to form the side walls of said cap interconnected by an upper flap adapted to form the upper wall of said cap, the shutter clean to form the bottom and the upper flap being of width less than or equal to said overall width and the side flaps being perforated by regularly distributed openings arranged to be opposite and allow the embedding of the respective intermediate portions of said products when the box is formed.

The invention will be better understood on reading the following description of embodiments given below by way of non-limiting examples.

• Les figures 1A à 1D montrent les étapes de réalisation d'une boîte d'emballage selon un premier mode de réalisation de l'invention, autour des produits.
• La figure 2 est une vue en perspective de l'emballage fini représenté sur les figures 1.
• La figure 3 montre l'emballage de la figure 2 après réouverture pour mise en rayon.
• Les figures 4A et 4B montrent en vue de dessus l'ensemble de découpes correspondant à l'emballage de la figure 2.
• Les figures 5A et 5B donnent respectivement des vues de profil et de face de l'emballage de la figure 2.
• Les figures 6A, 6B ; 7A, 7B ; 8A, 8B ; 9A et 9B donnent en vue de dessus des ensembles de découpes selon d'autres modes de réalisation de l'invention.
• La figure 10 est une vue en perspective d'un autre mode de réalisation d'une boîte d'emballage selon l'invention correspondant aux découpes des figures 11A et 11B.
• Les figures 12A, 12B, 13A et 13B sont des vues de dessus en plan d'autres modes de réalisation d'ensembles de découpes selon un mode de réalisation de l'invention.
• Les figures 14A et 14B montrent en perspective un autre mode de réalisation d'un emballage selon l'invention lors de sa mise en place autour des produits.
• La figure 15 est une vue en perspective de l'emballage terminé des figures 14 avec système de blocage.
• Les figures 16A et 16B sont en vue de dessus, les découpes permettant la réalisation de l'emballage de la figure 15.
• Les figures 17A et 17B sont des vues en perspectives d'un autre mode de réalisation d'une barquette d'un emballage selon l'invention, en cours de formation avec produits.
• Les figures 18A et 18B donnent en vue de dessus un autre ensemble de découpes selon l'invention.
• Les figures 19A et 19B montrent de profil, deux autres modes de réalisation d'emballages selon l'invention avec produits.
• La figure 20 est une vue de dessus d'une découpe pour barquette avec moyens de blocage, selon un mode de réalisation de l'invention.
• La figure 21 montre en vue de face et de côté un autre mode de réalisation de l'invention avec une barquette bloquante.
• Les figures 22A et 22B donnent en vue de face et de côté deux autres modes de réalisation d'emballages selon l'invention.
• La figure 23 est une vue de dessus en plan d'une découpe en forme de wrap selon un mode de réalisation de l'invention.

It refers to the accompanying drawings in which:

• The Figures 1A to 1D show the steps of making a packaging box according to a first embodiment of the invention, around the products.
• The figure 2 is a perspective view of the finished package shown on the figures 1 .
• The figure 3 shows the packaging of the figure 2 after reopening for shelving.
• The Figures 4A and 4B show in top view the set of cutouts corresponding to the packaging of the figure 2 .
• The Figures 5A and 5B give respectively profile and front views of the packaging of the figure 2 .
• The Figures 6A, 6B; 7A, 7B ; 8A, 8B; 9A and 9B provide in top view sets of blanks according to other embodiments of the invention.
• The figure 10 is a perspective view of another embodiment of a packaging box according to the invention corresponding to the blanks of the Figures 11A and 11B .
• The FIGS. 12A, 12B, 13A and 13B are top plan views of further embodiments of die sets according to one embodiment of the invention.
• The Figures 14A and 14B show in perspective another embodiment of a package according to the invention during its establishment around the products.
• The figure 15 is a perspective view of the completed packaging of figures 14 with locking system.
• The Figures 16A and 16B are in plan view, the cuts allowing the realization of the packaging of the figure 15 .
• The Figures 17A and 17B are perspective views of another embodiment of a container of a package according to the invention, being formed with products.
• The Figures 18A and 18B give in top view another set of cutouts according to the invention.
• The Figures 19A and 19B show in profile, two other embodiments of packaging according to the invention with products.
• The figure 20 is a top view of a cutout for tray with locking means, according to one embodiment of the invention.
• The figure 21 shows in front view and side another embodiment of the invention with a blocking tray.
• The Figures 22A and 22B show in front view and side two other embodiments of packaging according to the invention.
• The figure 23 is a top plan view of a wrap-shaped cutout according to one embodiment of the invention.

The Figures 1A to 1D and 2 show in perspective a packaging box 1 (cf. figure 2 ) for products 2 substantially oblong, each product 2 having an intermediate portion 3 of overall width greater than that of its ends 4 and 5, for example constituted by the bottom of the product and its cap 5.

The box 1 comprises a bottom 6 of a first predetermined width and a cap 7 made of cardboard sheet material for example flat cardboard or corrugated cardboard with a thickness of 2 mm or 3 mm.

The cap 7 comprises two identical rectangular lateral walls 8 and 9 interconnected by a rectangular upper wall 10 of a second determined width equal to or substantially equal to the first width, for example equal to said first width plus two thicknesses of cardboard, the bottom 6 forming a base of determined height, for example on 1/5 ^th of the height of the cap and / or the box. The determined height is for example comprised between ^1/10 and 1/3 of the total height of the cap and / or the box.

The first and the second width are of width less than the overall width of the product in its intermediate portion 3.

The side walls 8 and 9 are perforated by oval, oblong, rectangular or substantially rectangular openings 11, regularly distributed facing each other and arranged to allow the embedding of the respective intermediate portions 3 of the products.

More precisely and in this embodiment, these openings 11 are for example constituted by perforated strips of slightly trapezoidal shape of one to two centimeters in width, depending on the intermediate part to be embedded in the product.

The upper wall 10 is itself also perforated by openings 12 oval or circular, horizontal, regularly distributed, located in line with the openings 11, that is to say axes centered in the same vertical plane and / or symmetrically centered identical way (in other words the center or the vertical axis of the horizontal openings is parallel to the vertical axis of symmetry of the openings 11) arranged to allow the embedding of the upper ends 4 of the products, for example formed by the bottom of these.

In the embodiment described in Figures 1A to 3 the bottom and the cap are formed by two cutouts represented on the Figures 4A and 4B . This is a first cut 13 suitable for forming the tray-shaped bottom and a second cutout 14 suitable for forming the cap.

The first cutout 13 arranged to form the display tray 6 comprises a rectangular central flap 15 connected on each of its edges 16 by first fold lines 17 with four lateral flaps opposite two by two, namely two small transverse flaps 18 and two large longitudinal flaps 19, the small flaps 18 being provided with rectangular or trapezoidal end flaps located on either side, connected to the lateral edges of these transverse flaps 18 by second perpendicular fold lines or in the extension or substantially in the extension of the first fold lines.

The second cutout 14 capable of forming the cap 7, for its part comprises a series of three parts, namely a central flap (upper wall) 10 rectangular perforated by the oblong holes 12 intended to receive the bottom and / or plug portions 4 or 5 of the products 2 and two lateral flaps (side walls) 8 and 9, connected to the central flap 10 by parallel fold lines 21, the two lateral flaps 8 and 9 being themselves also perforated by the holes 11 adapted to receive the wider intermediate parts of the products, for example in the form of an elongate opening of substantially rectangular or slightly trapezoidal type.

We have shown on Figures 5A and 5B two other embodiments of packages 22 and 23 containing products 24 according to the invention to show the embedding of the intermediate portions 25 in the holes 26 of the side walls 27 of the cap 28 wider and showing clearly that the overall dimension of packaged products is identical to that of unpackaged products.

Products can be arranged upside down in the tray ( Figure 5A ) or head up ( Figure 5B ), the ends 29 or 30 then protruding from the cap by orifices provided for this purpose.

The same reference numbers will subsequently be used to designate identical or similar elements.

The Figures 6A and 6B show a set 31 of cuts according to one embodiment of the invention showing a first cutout 13 for trays of the type described with reference to the Figure 4B and a second cutout 14 for a cap provided on either side outwardly of each of the lateral flaps 32, at the outer periphery and connected by a fold line 33, with a substantially rectangular tongue 34 adapted to be fixed on the bottom of the tray after coating the products by the cap for example by gluing. Each of the side flaps 32 comprises for example in the lower part a frangible tab 35 for disengaging the tray / cap pulling in a manner known per se.

The Figures 7A and 7B show another set 36 of two cutouts 37 and 38 according to the invention, again for six aligned products.

Here the first cutout 37 and the second cutout 38 comprise fastening means 39 of one of the cutouts with the other snap-fastening at their overlap. More precisely the first cutout comprises, regularly distributed longitudinally along the main side flaps 19 one, two, three or more parts 40 formed of small squares partially frangible or pre-cut on the Y-shaped middle, to form a wedge settable, arranged to come snap in force with spacing in pre-established holes 41 of complementary shape made in the lower part 42 of the flaps of the cap, to allow snapping in a manner known per se.

The FIGS. 8A and 8B, 9A and 9B give two other embodiments of an assembly, respectively 43,44, cuts according to the invention, for six aligned products, having first cutouts 45 whose central flap 46 is provided with cut corners 47 giving the tray thus formed a generally octagonal shape, the end flaps 48 of the transverse flaps 49 on the side of the cut corners, being provided on each side with a small complementary rectangular end flap 50, which will make it possible to glue said flap on the outer face or internal part of the adjacent flap, so as to form the octagonal configuration tray.

The second cutouts 51 comprise, for their part, tear strips 52 as specified with reference to FIG. Figure 6A ( Figure 9A ) with gluing tab or locking means 53, 54 as indicated with reference to FIG. Figure 7A ( figure 8A ).

In the embodiments described here, the second cutouts 51 comprise lateral flaps 55 provided with lateral edges presenting recesses 56, for example forming lines. rectilinear discontinuous, to replace the openwork part allowing the embedding of end products.

The Figures 10, 11A and 11B respectively give a package 57 for six products 58 in two rows of three, and the corresponding cuts 59, 60 to form them of the type described with reference to Figures 8 and 9 .

The FIGS. 12A, 12B, 13A, 13B provide further embodiments of set of cutouts 61, 62 and 63, 64 according to the invention with rectangular end tabs 61 ', 63', to be glued to the underside of the tray.

More specifically, Figures 12A and 12B corresponding to a package for six products (2x3) of the type described with reference to figures 6 , without pull tab and the Figures 13A and 13B correspond to Figures 11A and 11B .

The figure 14A shows the formation of a package 65 around products whose lower tray 66 has an octagonal bottom making it possible to better fit the end, for example of the product cap, of the same type as that described with reference to FIG. Figure 9B .

The outer edge 67 of the flaps of the cap is in turn recess, as described with reference to FIGS. 8A or 9A , which allows a better visibility of the products 68 while allowing a bulk overall identical to them.

In the embodiments of the cap of the Figures 14B and 15 , there are provided locking means 69 formed by a part 70 precut on horseback on the upper edge 71 of the cap formed by the junction fold line between the upper flap 72 and the side flap 73 of the cap and which, when pressed inwardly of the cap, takes a shaped configuration orthogonal angle for blocking, as shown in FIG. figure 15 .

The Figures 16A and 16B give the cutouts 74 and 75 for forming the packaging of the Figures 14A to 15 .

The cutout 75 is for example substantially identical to the cutout 45 of the Figure 9B with an orifice, for example substantially oval or circular, central 76 straddling the fold line 77 connecting the central flap 78 and the longitudinal side flap 79 for detaching the fixed tray bonding point easily peelable by lateral traction, as for most trays usable with the invention.

The cutout 74 is for its break-off 80 in the form of broken line and provided with rectangular frangible portions 81 to form the angles 69, comprises two cut edges 82 and three fold lines 83, 83 ', 83 ", parallel to the line. 84, namely two lines in the lateral flap 85 and a line in the central flap 86.

The Figures 17A and 17B show other embodiments of locking means 87 this time at the tray 88 and not the product cap 89 in the package.

They are for example constituted by oblong holes 90 regularly precut, in the form of inverted arches in a longitudinal flap 91, it itself connected to an outer flap 92. A portion 93 pre-cut on two sides and connected to the flap 92 without folding is provided to fit into the oblong hole to form blocking at each cap, once the flap 91 folded towards the inside of the tray and the outer flap 92 bent perpendicularly and plated on the bottom of the tray.

The Figures 18A and 18B give in top view the blanks or cutouts 94 and 95 to make the tray of the Figure 17B and the packaging of Figures 19A, and 19B .

These give the side views of packages 96 and 97 with the products inside either the product plug being up ( figure 19A ) or down ( figure 19B ), the peripheries (plugs at the bottom) coming to be embedded in the oblong holes.

The figure 20 gives another embodiment of the first blank 98 forming a tray with a locking device 71 of the type described with reference to FIG. Figure 14B for the headdress.

The Figures 21, 22A and 22B give other embodiments in side views of the packages according to the invention.

The packages 99, 100 and 101 respectively comprise trays 102, 103, 104 respectively of the type of the blank 98 (tray 102), or the blank 94 (trays 100 and 101).

The caps, respectively 105, 106, 107, are, for their part, either of the conventional type (105) as described with reference to the figure 2 , of the type enveloping (106, 107) with cut sides 108 conforming laterally to the shape of the bottom or the cap.

The figure 23 is a blank according to another embodiment of the invention comprising a series of four rectangular flaps, 109, 110, 111, 112, attached to each other, where appropriate, by parallel fold lines, namely a flap main 111 forming the bottom provided laterally on its two free flap edges 111 'with end tab 113 on either side, two side flaps 110 and 112 perforated according to the invention, respectively attached to both sides to main flap 111, forming the perforated side walls, and an end flap 109 attached to one of the side flaps forming the perforated upper wall, this flap 110 comprising on its outer edge a tab 114 of bonding, as the flap 112 .

We will now describe with reference to Figures 1 to 3 forming a package 1 according to an embodiment of the invention.

From the bottom 6 disposed flat, the products 2 (for example six in number) are placed in a row in a known manner in itself, plugs 5 plated on the central flap.

Then the previously glued side flaps are folded (cf. Figure 1B ) to form the tray 6 which keeps the plugs 5 tight.

The cap 7 is then fed over, the parts 4 of the products 2 being inserted into the holes 12 vis-à-vis the upper flap, then the side walls 8 and 9 of the cap, here again also previously glued internally are folded down , the lower ends being vis-à-vis vertical walls of the tray with which they come to cooperate by gluing, the intermediate portions 3 of the products then returning to be inserted into the lateral orifices 11, to obtain the packaging 1 of the figure 2 , which can then be stored and transported.

When it is desired to put the products on the shelf, the lower parts of the walls are removed, by separating them in a manner known per se, by manual lateral pulling towards the outside, then the cap is lifted and removed (cf. figure 3 ) to release the tray and products that can be placed in a block radius.

As is obvious and as also follows from the above, the present invention is not limited to the embodiments more particularly described. On the contrary, it embraces all the variants and in particular those where the products are different from those shown and / or those where the cap and the tray are reversed, or those where the tray is stuck externally on the lower edges of the cap, the games being compensated by clamping / plating the tray on said edges of the cap.

Claims (13)

1. Packaging comprising substantially oblong products (2), each product exhibiting an intermediate part (3) having an overall width greater than that of its ends (4, 5), and a box comprising a bottom (6) and a top (7) made of cardboard or corrugated cardboard sheet material, the top (7) comprising two side walls (8, 9) connected to one another by an upper wall (10), the bottom and the upper wall having a width less than or equal to said overall width and the side walls (8, 9) being pierced with facing uniformly distributed openings (11) arranged to allow the engagement of the respective intermediate parts (3) of said products,
   characterised in that the bottom and the top are formed by two separate blanks, namely a first element (6) constituting the blank forming the bottom and a second element (7) constituting the blank forming the top, separable manually one from the other,
   in that the first element (6) forming the bottom constitutes a boat for presenting the products formed by a central wall (15) connected to four side walls (18, 19) fixed to one another perpendicularly to the central wall through the intermediary of end flaps (20),
   and in that the first and the second elements can be detached from one another by pulling sideways by hand towards the exterior to release the boat and the products.
2. Packaging according to claim 1, characterised in that the upper wall (10) is pierced uniformly with uniformly distributed openings (12) arranged to allow the engagement of the respective upper ends (4) of the products (2).
3. Packaging according to any one of the preceding claims, characterised in that the second element is formed from a blank comprising a series of three sections (8, 9, 10), namely a central section (10) forming the upper wall and two side sections (8, 9) forming the side walls the lower peripheral parts of which are fixed respectively to the two facing side walls of the boat.
4. Packaging according to claim 3, characterised in that the lower peripheral parts comprise a breakable tongue (35) allowing the detachment of the boat and the top fixed together by gluing.
5. Packaging according to claim 3, characterised in that the lower peripheral parts of the side walls of the top and the side walls of the boat comprise means (39; 53, 54) for fixing them together by engaging the one with the other.
6. Packaging according to claim 4, characterised in that at their periphery the side walls of the top comprise gluing tongues (34; 61'; 63') suitable for folding and gluing under the bottom of the boat.
7. Packaging according to any one of the preceding claims, characterised in that the box comprises internal turn-backs (92, 93) with cut-outs (90) suitable for ensuring that the ends of the products are wedged.
8. Box for packaging according to any one of the preceding claims, characterised in that it is made of corrugated cardboard.
9. Set of two blanks (13, 14) made of cardboard or corrugated cardboard sheet material to constitute a packaging box provided with a bottom and a top for substantially oblong products (2), each product having an intermediate part (3) of overall width greater than that of its ends (4, 5), comprising a series of three sections (8, 9, 10) suitable for forming the top, namely two side sections (8, 9) suitable for forming the side walls of said top connected to one another by an upper section suitable for forming the upper wall of said top, and said side sections (8, 9) being pierced with uniformly distributed openings (11) arranged to face one another and allow the engagement of the respective intermediate parts (3) of said products when the box is formed,
   characterised in that it comprises two blanks (13, 14) suitable for being fixed one to the other, namely a first blank (13) suitable for forming the bottom and a second blank (14) suitable for forming the top,
   in that the first blank (13) is arranged to form a boat for presentation and comprises a rectangular or substantially rectangular central section (15) connected at each of its edges to four side sections (18, 19) at least two of which are provided with end flaps (20),
   in that the second blank (14) comprises a series of three rectangular sections, namely a central section (10) and two side sections (8, 9) the external peripheral parts of which are arranged to be fixed, so as to be detachable by pulling sideways by hand towards the exterior, respectively to the two facing side walls of the first blank once the boat has been formed,
   and in that said central section (15, 46), at the bottom and the upper section (10) have a width which is less than or equal to said overall width of the products.
10. Set of two blanks according to claim 9, characterised in that the upper section (10) is pierced with uniformly distributed openings (12) arranged to allow the engagement of the respective upper ends of the products when the box is formed.
11. Set of blanks according to any one of claims 9 and 10, characterised in that the lower peripheral parts of the side walls of the top and the side walls of the boat comprise means (39; 53, 54) for fixing them together by engaging the one with the other.
12. Set of blanks according to any one of claims 9 and 10, characterised in that the lower peripheral parts of the side sections comprise a breakable tongue (35) allowing the detachment of the boat and the top by pulling them apart.
13. Set of blanks according to any one of claims 9 to 12, characterised in that at least one of the blanks comprises partially pre-cut portions (92, 93) arranged to constitute internal turn-backs with cut-outs (90) suitable for ensuring that the ends of the products are wedged when the box is formed.

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