EP0846070A2

EP0846070A2 - Container supplied in flat condition, and set into shape in two distinct phases and having extended adhesive effect

Info

Publication number: EP0846070A2
Application number: EP96928497A
Authority: EP
Inventors: Pierre Chevalier
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-09-15
Filing date: 1996-08-08
Publication date: 1998-06-10
Anticipated expiration: 2016-08-08
Also published as: ES2193257T3; FR2738798B1; AU6823996A; EP0846070B1; DE69626121D1; DE69626121T2; ATE232172T1; WO1997010137A3; WO1997010137A2; FR2738798A1; NZ316086A; CA2228892A1; US6032853A

Abstract

PCT No. PCT/FR96/01268 Sec. 371 Date Apr. 24, 1998 Sec. 102(e) Date Apr. 24, 1998 PCT Filed Aug. 8, 1996 PCT Pub. No. WO97/10137 PCT Pub. Date Mar. 20, 1997The container made of cardboard or similar material intended to the packaging of objects is formed from a blank which is comprised at least one flat rough form and which presents, when in flat condition, different components: a polygonal planar base intended to receive the objects to be packaged and walls adjacent to the base and intended to be straightened up with respect to said base in order to set the container in volume, a so-called "closure " panel being optionnally provided in order to close the container once the objects to be packaged have been placed on the base. It is characterized in that the blank is associated to at least one distinct element (120-121, 122-123, 124-125, 126-127) which is intended to be set in a definitive active position wherein, on the one hand the base (106) is completely cleared and accessible to objects to be laid thereon and, on the other hand, it joins and holds out of their original plane at least two components (107-108-109-110) of said container which are adjacent to the base (106), having a surface smaller than that of said base (106), and others than the optionnal closure panel (140), the distinct element (120-121, 122-123, 124-125, 126-127) placed flat directly against at least one of the components (107-108) of the container, the extended adhesive effect (131) being provided in order to keep in a definitive position the raised up components (107-108-109-110) and the distinct element or elements (120-121, 122-123, 124-125, 126-127).

Description

CONTAINER FLAT BOOK, THEN VOLUME IN

TWO SEPARATE PHASES, AND BEARING

LONG-TERM ADHESIVE

In addition to rigid containers and those used in the industry for automatic packaging, containers can be divided into two main categories:

- those presented in volume to the user,

- those which require assembly at the time of their use. The present invention relates to this second category.

It aims to remedy a well-known defect which comes from the fact that a container which is not completely closed is often unstable, which obliges the user to inconvenient and hazardous manipulations since he should both maintain volume. at least part of the container and set up the objects to be packed.

In short, the user would have to have three hands: two to hold the container and one to handle the objects.

To avoid this, you must use accessories external to the container itself: staples, adhesive tape, glue, etc. , all things currently only available to professional users who have at their disposal a location suitable for packaging tasks as well as all the accessories and equipment required.

This is obviously not the case for occasional users who must more or less improvise the actual packaging operations, in addition to mounting a container delivered flat. Of course, it is sometimes possible to hold the container with one hand and place the objects with the other.

But this "approximately" is very insufficient for a container which is intended to be offered to users for all cases of packaging which may arise while it is industrially mass produced.

This is exactly what currently exists. Examples include folding containers sold in post offices. They are delivered flat to the user and the latter must straighten walls or shutters (which is equivalent), maintain them and simultaneously set up the objects to be packaged because the container only becomes stable by its final closure.

We understand that if the user operates in the post office itself, it has no convenience.

If he operates at home, he can use an unobstructed table, adhesive tape, string or staples, but this proves that the container is not practical because it is not sufficient by itself.

The present invention mainly remedies this drawback by making it possible to provide users, individuals or professionals, with a container which incorporates all that is necessary for its practical use, which makes any accessory useless, so that it is stable and fixed before the objects to be packed have to be placed.

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.

Figures 1 to 49 illustrate different embodiments of the invention for a container having predetermined dimensions, such as a tray or a box. More specifically: Figure 1 is a schematic plan view of a blank according to the invention, intended to constitute a container without cover.

FIG. 2 is a schematic perspective view of a container without cover during assembly, originating from the folding of the blank of FIG. 1.

Figure 3 is a schematic plan view of a blank according to the invention, intended to constitute a blank then a container without cover. FIG. 4 is a schematic plan view of a ready-made blank, obtained from the blank of FIG. 3.

FIG. 5 is a schematic perspective view of a container without cover during assembly, originating from the folding of the blank of FIG. 4.

Figure 6 is a schematic perspective view of the container of Figure 5, in the final assembly phase.

Figure 7 is a schematic plan view of a blank according to the invention, intended to constitute a blank then a container with lid.

Figure 8 is a schematic plan view of a ready-to-use blank obtained from the blank of Figure 7. Figure 9 is a schematic perspective view of a container with lid during assembly , from the partial folding of the blank in Figure 8.

FIG. 10 is a schematic view showing a detail of the container of FIG. 9.

Figure 11 is a schematic perspective view of the container of Figures 9 and 10 in the final closing phase.

Figure 12 is a schematic perspective view showing the container of Figure 11 seen from above. Figure 13 is a schematic perspective view showing the container of Figure 11 seen from above, in a closing phase which follows that of Figure 12. Figure 14 is a schematic view of the container of Figures 12 and 13 seen from the front.

Figure 15 is a schematic view of the container of Figures 12 and 13 seen from the side. Figure 16 is a schematic perspective view of the container of Figures 9 to 15 after complete closure.

FIG. 17 shows schematically and from the front an alternative embodiment of the container of the preceding figures, according to which the closure of this container is provided at the lower part of one face of the container.

Figure 18 shows schematically and from the side the container of Figure 17 completely closed.

Figure 19 is a schematic perspective view of the container of Figures 17 and 18 after complete closure.

Figure 20 is a schematic plan view of a blank according to the invention, intended to constitute a blank then a container with cover and lateral protective rims.

FIG. 21 is a schematic plan view of a ready-to-use blank, obtained from the blank of FIG. 20.

FIG. 22 is a diagrammatic perspective view of a container being assembled from the blank of FIG. 21.

Figures 23 and 24 are two partial schematic views showing two stages of mounting the container of Figure 22. Figures 25 and 26 are two partial schematic views showing alternative embodiments of the container of Figures 22 to 24.

Figure 27 is a schematic plan view of a blank according to the invention, similar to that of Figure 21 and corresponding to an alternative embodiment.

FIG. 28 is a partial schematic perspective view of a container obtained from the blank of FIG. 27.

Figure 29 is a schematic perspective view of the container of Figure 28, during complete closure.

FIG. 30 is a schematic top view of the container obtained from the blank of FIG. 27. FIG. 31 is a schematic front view of the container of FIG. 30.

Figure 32 is a schematic plan view of a blank according to the invention, intended to constitute a blank then a container with cover and lateral protective rims, and showing an alternative embodiment.

Figure 33 is a schematic plan view of a ready-to-use blank obtained from the blank of Figure 32. Figure 34 is a schematic perspective view of a container being assembled from of the blank in Figure 33.

Figures 35 and 36 are two partial schematic views showing two phases of mounting the container of Figure 34.

Figures 37 and 38 are two partial schematic sectional views of the container of Figures 34 to 38, respectively before and after complete closure. Figures 39 and 40 are two schematic views showing two variants of the blocking of lateral tabs applied as reinforcement outside the lateral faces of the container of Figures 7 to 38. Figures 41 to 48 are schematic views of an embodiment of the invention consisting of a container with a covering lid.

FIGS. 49 to 51 are schematic views of a blank according to the invention having segments of adhesive arranged lengthwise and no longer crosswise, and more precisely:

FIG. 49 shows segments of adhesive arranged lengthwise on two separate elements for the initial partial formation of the container and on the fixing flap for closing the container.

Figure 50 is a view similar to Figure 49 showing the same segments of adhesive supplemented by segments of adhesive placed on the side walls.

Figure 51 is a view similar to Figures 49 and 50, showing the same segments of adhesive supplemented by segments of adhesive placed on four separate elements.

FIG. 52 is a schematic view showing in perspective a container in the process of being set up and closed, from the blank of FIG. 51.

Figure 53 is a schematic view of a blank according to the invention similar to that of Figure 49 but whose fixing flap has a closing tab to cooperate with a slot of a transverse wall, and not segments d 'adhesive.

Figures 54, 55 and 56 are examples of embodiment of separate elements separated from the blanks. More precisely :

Figure 54 is a schematic perspective view of a separate element according to the invention, according to the embodiment providing that the element separate separate from the corresponding blank carries long-acting adhesive arranged longitudinally.

Figure 55 is a schematic perspective view of a stock of elements distinct from Figure 54, as it may appear in practice.

Figure 56 is a schematic perspective view of a separate element, similar to that of Figure 54 but carrying long-acting adhesive disposed transversely. Figures 57 to 74 illustrate different embodiments of the invention for a container having a variable height adjusted case by case depending on the objects to be packaged. More specifically:

Figure 57 is a schematic plan view of a blank according to the invention, intended to constitute a blank then a container with variable height, depending on the objects to be packaged.

FIG. 58 is a schematic plan view of a ready-made blank, obtained from the blank of FIG. 57.

Figure 59 is a schematic view of the blank of Figure 58 and the separate element of Figure 54, being formed of the container.

Figure 60 is a view similar to that of Figure 59 showing the same blank as that of Figure 58 but with a separate larger element, suitable for packaging objects of small dimensions.

Figure 61 is a schematic view showing the blank of Figure 58 during the immobilization phase of side walls by means of the separate element. Figure 62 is a schematic view similar to Figure 61 showing the container and the objects to be packaged partially covered by transverse flaps extending the side walls. Figures 63 and 64 are two schematic perspective views respectively showing the lower face and the upper face of the container of Figures 58 to 62 after complete closure. Figure 65 is a schematic plan view of a blank according to the invention comprising two parallel strips connected together.

Figures 66 and 67 show two intermediate situations of putting the blank in the use position by relative pivoting of the two strips.

Figure 69 is a schematic perspective view of the blank of Figure 68, after partial straightening of the side flaps.

Figure 70 is a schematic perspective view of the blank of Figure 69 after placement of the objects to be packaged and folding of one of the side flaps.

Figure 71 is a schematic perspective view of the blank of Figure 70 after folding the two side flaps, fixing the separate element and partial straightening of the two ends of a strip to wrap the folded flaps and close the container.

Figure 72 is a schematic perspective view of the blank of Figure 71 after folding down one of the ends of the strip.

Figure 73 is a schematic perspective view of the container completely closed by means of long-acting adhesive, and taken from the blank of Figures 65 to 72. Figure 74 is a schematic perspective view of the container of Figure 73 and showing the 'one of its little faces.

The word "adhesive" is used here when it is a substance which retains its properties for a relatively long time, especially when it is protected by a tape. It is, in fact, to defer the use of said adhesive after it has been placed, during manufacture.

Such an adhesive is known per se and is sometimes defined by calling it an adhesive with "permanent setting time", which provides a "self-adhesive surface".

This word "adhesive" should not be confused with the word "glue" which concerns a substance which can only be used within a very short time, immediately after its installation, for a final fixation, before it has not hardened by drying, polymerization, evaporation of solvents and / or cooling. When glue is used for the manufacture of containers, it definitively assembles two parts of the blank from which the container is set in volume by the user, the latter therefore having no access to the glue, which is a means irreversible fixing.

Fixing by irremovable means or those that leave indelible marks if they are removed is also considered irreversible, which is the case with staples, for example.

The adhesive can be of any known type, in particular of the double-sided tape type, often designated by the expression "adhesive transfer tape" or else, for example, according to the provisions of European patent 431,144 in the name of the applicant.

In the description which follows, it is assumed that the invention is applied to cardboard but, of course, it can be used with any other material suitable for the use for which the containers are intended. As explained at the beginning of this description, the invention relates to the packaging of objects in containers which are produced and then delivered in the form of a flat blank, having, as the case may be, one or more thicknesses, placing in volume of the blank to make a container being produced by the user (and not by the manufacturer). This means that the container according to the invention can be presented in several forms depending on the phase of its cycle in which it is placed:

- a cut blank, a flat blank already fitted with a long-acting adhesive,

- a blank already provided with a long-acting adhesive and partly already folded on itself,

- a blank already provided with a long-acting adhesive and partly already folded on itself, certain parts being fixed in an irreversible manner (by glue, staples or the like),

- a container that has been partially or completely put into volume, empty or in the process of packaging,

- a closed container. Referring to Figure 1, we see a blank

101 made up of a blank cut out and marked with four pre-folding lines arranged in cross in pairs 102, 103 and 104, 105 which determine a base (or bottom)

106, two so-called "transverse" panels 107 and 108 and two so-called "lateral" panels 109 and 110.

We understand that after straightening the panels

107, 108, 109 and 110 along lines 102, 103, 104 and 105 in planes perpendicular to that of the base 106, a bowl or tray is formed, having a bottom 106 and four outer walls 107, 108, 109 and 110, the walls 107 and 108 being called "transverse" and the walls 109 and 110 being called "lateral".

In addition to these five necessary and sufficient components, in theory, to constitute a container, the precut lines 102, 103, 104 and 105 determine four distinct elements 111, 112, 113 and 114, of quadrangular shape and exactly inscribed in the outline of the 'blank blank 101 and which, if they were not kept for reasons which will emerge from the description below, would constitute scrap to be eliminated in pure loss. Four pre-folding lines 115, 116, 117 and 118 placed diagonally determine for each separate element two triangular tabs 120-121, 122-123, 124-125 and 126-127. On the face of the blank 101 opposite to that which is visible in FIG. 1, there is the extended-effect adhesive 130 on the four distinct elements 111, 112, 113 and 114 in four parallel lines two by two, this adhesive being covered with removable protective tape 131.

Naturally, each time that the long-acting adhesive 130 is mentioned, especially when it is arranged in lines, it should be understood that this adhesive 130 can be arranged in more or less extensive zones, in flat or dotted lines. and, therefore, in continuous or broken lines, straight, curved or broken.

Note that the adhesive lines are located substantially halfway up the separate elements and therefore cross the oblique pre-folding lines 115, 116, 117 and 118, which is of great interest, as will be explained below.

With the embodiment which has just been described, it can be seen that the blank, after manufacture, is determined by its external contour cut out from a plate and by the pre-folding lines 102, 103, 104, 105 and 115, 116, 117 and 118.

When the blank is provided with prolonged-effect adhesive 130 covered with a protective tape 131, we are in the presence of a complete blank which incorporates, by manufacture, all the elements necessary for making up a container by a user.

The blank of FIG. 1 is therefore ready to be marketed and, to this end, the production is followed by a grouping of several blanks 101, of possible packaging, storage and delivery to the customer, that is to say to users. The user receives one or more blanks, possibly stores them and then takes them one by one to constitute as many containers.

For this, it removes the protective tape 131 corresponding to the triangular tabs 124-125 and 126-127, it straightens the two side walls 109 and 110 according to the arrows Fl, then the transverse wall 108 according to the arrow

F2.

Consequently, the separate elements 113 and 114 automatically fold in a bellows along the lines 103-104-117 and 103-105-118, as can be seen in FIG. 2.

In practice, the separate elements 113 and 114 being integral with both a side wall and the transverse wall 108, the straightening of the walls 109 and 110 initiates the straightening of the transverse wall 108, so that the user does not that complete the straightening of this wall 108 by gripping and clamping the wall 108 and the triangular tabs 124 and 126.

Due to the oblique pre-folding lines 117 and

118, the adhesive 130 is broken down into two segments for each of the separate elements 113 and 114: one segment is on the triangular tab 124-126 and the other on the triangular tab 125-127.

The 45 ° folding of these triangular legs along these oblique lines 117 and 118 has the very favorable consequence that after complete folding, the two segments of the same separate element 113-114 are facing each other by being perpendicular.

That of the leg 124-126 is applied vertically (that is to say perpendicular to the pre-folding line 103) against the triangular leg located opposite 125-127, while the segment of this leg 125-127 s' applies horizontally (that is to say parallel to the pre-folding line 103) against the triangular tab situated opposite 124-126 (see FIG. 2). The user completes the assembly by pinching the wall 108 and the triangular tabs 124 and 126 between two fingers.

These very simple gestures do not call on any accessory external to the blank delivered by the manufacturer. At this stage, the user has formed only part of the complete container: the base 106, a transverse wall 108 and two side walls 109 and 110. And yet this only part is already stable in itself when it is placed at flat, by the base (or bottom) 106, on any flat support such as a table.

The user can then use both hands to place the objects to be packaged on the base 106.

Similarly, after placing these objects, he retains the use of both hands to complete the container.

This completion consists in removing the protective tape 131 from the separate elements 111 and 112, then pinching between two fingers the transverse wall 107 and the triangular tabs 121 and 123, after this wall 107 has been completely raised according to arrow F3.

The explanations given above on the separate elements 113 and 114, are valid for the separate elements 111 and 112, so that after complete straightening of the wall 107 and folding flat of the separate elements 111 and 112, the triangular legs are fixed two by two in their final position: the legs 120 and 122 against the legs 121 and 123.

The user then has a complete container, without lid, of the type known by various names: tray, tray, bowl, crate, crate and others.

Depending on the nature of the objects to be packaged, they can be left uncovered or be protected by a cover or a lid. For example, some fruits are only protected by a simple light sheet of paper or by a plastic film, sometimes perforated, to allow the ventilation of the contents, while others must be enclosed by means of a rigid cover, as will described later.

The container of FIGS. 1 and 2 is very simple and requires only elementary and inexpensive operations for its manufacture.

On the other hand, the blank 101 delivered is relatively bulky because it has only one thickness, without overlapping, and, as a consequence, has a fairly large width, equal to the sum of the widths of the wall 109, of the base 106 and of the wall 110.

The embodiment which will now be described with reference to FIGS. 3 to 6 differs from the previous one by an additional connection, produced during manufacture, between the transverse walls and the separate elements, which has, moreover, the advantage to make the blank delivered narrower. In Figure 3, we see a blank corresponding exactly in shape and size to the blank of Figure 1, because both are intended to obtain a container of the same design and the same capacity. The triangular tabs 120, 122, 125 and 127 receive, during manufacture, glue represented by a dotted sowing and which, here, is provided over the entire surface of the triangular tab but which, of course, could also be arranged in the form of one or more one-off or online deposits.

As explained above, this glue should not be confused with the long-acting adhesive 130. It should be used immediately after it has been placed in its place. Here, this adhesive must irreversibly join each of the two transverse walls 107 and 108 with the adjacent triangular legs, namely the wall 107 with the legs 120 and 122, and the wall 108 with the legs 125 and 127, which is obtained, during of manufacture, by folding over the transverse walls 107, 108 and the base 106, on the one hand the wall assembly 109 and separate elements 111 and 113 along the pre-folding line 104, and on the other hand the wall assembly 110 and separate elements 112 and 114 along the pre-folding line 105 (FIG. 4).

The blank of Figure 3 is therefore only an intermediary between its cutting and its preparation of blank ready for delivery, as shown in Figure 4. This blank is narrower than that of Figure 1 , that is to say less bulky and if it has a double thickness due to the superposition of two lateral parts on the central part, this is not a significant drawback with regard to the advantages it has for its delivery and for its assembly by the user.

Indeed, thanks to the fixing of the triangular legs to the transverse walls, the straightening of the walls and the automatic folding of the separate elements are facilitated.

FIG. 5 illustrates the setting in volume of the blank which, here, begins not with the straightening of the side walls 109, 110 and that of the transverse wall 108, but by the lifting of the side walls 109 and 110 according to the arrows F4.

The separate elements 111, 112, 113 and 114 being integral with the adjacent transverse and lateral walls and the triangular tabs 120, 122, 125 and 127 being fixed (as soon as they are made) to the transverse walls 107 and 108, the lifting of the lateral walls 109 and 110 has the effect of automatically straightening the walls 107 and 108 and force the separate elements to bend along the oblique pre-folding lines 115, 116, 117 and 118.

The user removes the protective tape 131 from the separate components 113 and 114, before or after having lifted the side walls 109 and 110.

It is the position thus reached which is represented by FIG. 5 in which it can be observed that the triangular tabs 120, 122, 125 and 127 are clearly applied against the transverse walls 107 and 108, while in the equivalent position (FIG. 2 ) of the previous embodiment, the two triangular legs of each separate element 111, 112, 113 and 114 are further apart in bellows. It is understood that the fixing of the triangular legs to the transverse walls still has an advantage since the triangular legs cannot deviate from the transverse wall to which they are subject, whereas with the embodiment of Figures 1 and 2 they do not are kept in place only thanks to the geometry of the parts in question, geometry which opposes their separation if the walls are straightened and immobilized, which is obtained with the adhesive 130.

In FIG. 6, the position of the container is seen after straightening and fixing of the side walls 109, 110 and of the transverse wall 108.

The legs 124, 125 and 126, 127 form with the wall 108 a fixed and inseparable assembly, the legs 125 and 127 being glued to the wall 108 and the legs 124 and 126 being fixed to the legs 125 and 127 by the adhesive 130.

The transverse wall 107 is shown in the position it occupies when it has been partially straightened, automatically, under the pulling effect exerted by the separate elements 111 and 112, themselves pulled by the raised side walls 109 and 110 by the user. The protective tape 131 has been removed and the user only has to pinch the wall 107 and the triangular tabs 121 and 123 to have a finished container. The objects to be packaged can be placed on the base 106, either before or after having fixed the wall 107 and the legs 121 and 123.

The container according to the invention may have an integrated cover, as will now be described with reference to FIGS. 7 to 19.

In these figures, the same parts have the same references as the previous ones and their description and their usefulness will only be repeated if this is useful for the proper understanding of the drawings. 7 shows a blank similar to that of Figure 3. The transverse wall 107 is secured to a closure panel 140 by a pre-folding line 141 and this panel 140 is itself secured to a so-called "fixing flap "142 by a pre-folding line 143. The closure panel 140 has two so-called" locking "tabs 144 and 145, differentiated from the panel 140 by pre-folding lines 146 and 147.

The side walls 109 and 110 are secured by pre-folding lines 148 and 149 of flaps 150 and 151 marked with precut lines 152 and 153.

The triangular tabs 120, 122, 125 and 127 receive glue, as already indicated with regard to FIG. 3.

Long-lasting adhesive 130 covered with a protective tape 131 is placed on the hidden face of the blank of FIG. 7 and extends transversely, in a single line, from one edge to the other of the blank, crossing the oblique pre-folding lines 117 and 118.

In addition, two glue dots 154 and 155 are placed on the closure panel 140 opposite the tabs 144 and 145. As with the previous embodiment, the adhesive must irreversibly join each of the two transverse walls 107 and 108 with the adjacent triangular legs, namely the wall 107 with the legs 120 and 122, and the wall 108 with the legs 125 and 127, which is obtained, during manufacture, by folding over the transverse walls 107, 108 and the base 106, on the one hand the wall assembly 109 and separate elements 111 and 113 along the pre-folding line 104, and on the other hand the wall assembly 110 and separate elements 112 and 114 along the pre-folding line 105 (Figure 8).

In doing so, the locking tabs 144 and 145 are also folded along the pre-folding lines 146 and 147 and they are fixed to the panel 140, inside its outline, by means of the glue dots 154 and 155.

The blank of FIG. 7 is therefore only an intermediary between its cutting and its preparation of blank ready for delivery, as shown in FIG. 8.

When using the blank of FIG. 8, the user performs the same operations as those described with the previous embodiment, with reference to FIGS. 3 to 6 and, in addition, he straightens the locking tabs 144 and 145 , which is possible because the glue dots 154 and 155 are of small extent and / or made of a substance having, by design, a low coefficient of adhesion.

The locking tabs 144 and 145 are simply peeled off and they are only put in the active position when the container is closed, which is described below.

The user lifts the side walls 109 and 110 according to the arrows F4, which puts the blank in the situation mentioned in FIG. 9. It removes the protective tape 131 from the ends of this tape located near the edges of the triangular tabs 124 and 126, this tape remaining in place over its entire length located on the outside of the transverse wall 108 thanks to the fact that, when of manufacture, this ribbon is cut transversely to itself in line with the pre-folding lines 104 and 105 which form the delimitation between the wall 108 and the triangular tabs 125 on the one hand and 127 on the other hand. Thus, the user can fix, by the adhesive 130 uncovered, the legs 124 and 126 to the legs 125 and 127 glued to the wall 108 during manufacture, an operation which is evoked by FIG. 10.

As previously described, this single operation makes it possible to make the part of the container formed by the base 106, the transverse wall 108 and the side walls 109 and 110 perfectly stable and fixed, by means of the separate elements 113 and 114.

The user can then place the objects to be packaged on the base 106 using his two hands.

Note that, unlike the previous embodiment, there is no adhesive 130 on the triangular legs 120-121 and 122-123 because it is not essential, as will be seen below, but, of course, it is also possible to adopt the same solution as that of FIGS. 1 to 6 if one wishes to completely complete the tray 106-107-108-109-110, independently of its closure by the panel 140 and the fixing flap 142 .

When the objects to be packaged are installed, the user lowers the flaps 150 and 151 inwards, which releases the cardboard parts cut by the pre-cut lines 152 and 153, these parts determining two ribs 156 and 157 which are protruding above the flaps 150 and 151 because these parts remain in the extension of the side walls 109 and 110 instead of folding with the flaps 150 and 151. The lowering of the flaps 150 and 151 unmask two slots 158 and 159 whose width is coordinated with the thickness of the cardboard so that a tab 144-145 can penetrate there. The ribs 156 and 157 can be removed if they are not used, for example to cooperate with the closure panel 140. Here, they are useful during manufacture because they create the slots 158 and 159 which are needed, while avoiding the delicate operation of removing and eliminating the cardboard cut on the four sides of each slot.

After having lowered the flaps 150 and 151, the user straightens the closure panel 140 which, holding on to the wall 107, urges the latter towards its straightening position, the separate elements 111 and 112 automatically folding in bellows as already indicated, what figures 11 and 12 represent.

Then, if he has not already done so, the user removes the protective tape 131 still in place outside the wall 108, then lowers the closure panel 140 and introduces the locking tabs 144 and 145 into the corresponding slots 158 and 159 (Figures 13 and 14).

Finally, the user completes the closure of the container by applying the fixing flap 142 against the transverse wall 108 to which it is permanently fixed by the adhesive 130 which was unmasked during the removal of the tape.

131 (Figure 15).

The finished container constitutes a box, the manufacture of which is simple and inexpensive because it involves processes and means accessible to those skilled in the art.

The blanks are delivered flat and occupy a small volume for shipping and storage. The setting up of a blank to mount it in a container is extremely simplified compared to known comparable models, and it does not require any mounting or closing accessory. This makes it a particularly well-suited box for the general public and, in particular, for postal items.

The presence of the legs 144 and 145 removes, between the top of the side walls 109-110 and the closure panel 140, any space through which could, voluntarily or accidentally, pass a thin object such as an envelope, a postcard, a sheet or the like, both from the inside to the outside and vice versa from the outside to the inside. This guarantees both the integrity of the content and the security of documents and of postal mail in general, capable of rubbing shoulders with a closed box in accordance with the invention.

In addition, the closed box is inviolable, even by fraudulent practices, because when the adhesive 130 of the fixing flap 142 has been unmasked and then applied against the wall 108, it is impossible to open the box and access the content other than by destroying an external part, which immediately reveals the fraud and prevents it from being practiced secretly.

Experience has shown that an attempt to peel off the fixing flap 142, even with delicacy, on a corrugated cardboard box has the effect of tearing the paper constituting the face of the corrugated cardboard carrying the adhesive, and of discovering the grooves internal, even beyond the originally hidden area, so that the opening (or attempted opening) is immediately visible.

With reference to FIGS. 7 to 16, an embodiment has been described according to which there is available the long-acting adhesive 130 along a single transverse line and we have given the significant advantage of simplicity and efficiency represented by the arrangement of this adhesive 130 across separate elements 113 and 114, approximately halfway up to cross the pre-folding lines 117 and 118. But this simplicity leads to the need to provide the adhesive 130 of the wall 108 at the same height of the finished box as that necessary for crossing the pre-folding lines 117 and 118.

Consequently, the height of the fixing flap 142 must simply be sufficient for it to cover the wall 108 up to the level of the adhesive 130 and, for safety, a little below.

Now, it is understood that the lower the adhesive 130 is placed, near the base 106, the greater the height of the fixing flap 142 must be, but the more energetic it is to be fixed by the adhesive 130.

Indeed, the fixing flap 142, the closure panel 140 and even the transverse wall 107 are subjected to a force which tends to return these components to their original position, flat, since they are brought to their position. final by constraining the carton along the pre-folding lines 102, 141 and 143.

This effort results in a permanent stress on the tearing of the fixing flap 142, therefore on its separation from the wall 108, and if this happened, the entire box would be dislocated and its qualities destroyed.

It is therefore necessary, not only that the long-acting adhesive 130 be of excellent quality, but also that the fixing flap 142 is retained as far as possible from the pre-folding line 141, that is to say also as close as possible to the edge of the base 106, to oppose a lever arm as long as possible to the pulling force. It is then necessary to have the adhesive 130 on the wall 108 lower than the mid-height of the triangular tabs 124-125 and 126-127, which is shown in Figures 17 to 19. Here, we has only represented a single line of adhesive 130 (FIG. 17), because it is a suitable solution, because this avoids overloading the drawing and this makes it possible to clearly show, in dotted lines, the arrangement of the adhesive 130 on the triangular legs in two perpendicular segments.

But one could also provide two lines of adhesive 130 on the wall 108: one at the same level as the mid-height of the triangular legs, as in Figures 7 to 16, and another lower, as in Figures 17 to 19, especially if an unreliable adhesive 130 is used.

The closer the adhesive 130 is to the base 106, the more energetic the fixing of the fixing flap 142.

Indeed, the pressure action exerted by the user when the box is closed causes a correlative reaction of the wall 108 and, as this wall 108 is flexible, its resistance to deformation depends on the rigidity of the structure, which is maximum on the pre-folding line 103 and decreases as it moves away from it, because this line determines two perpendicular planes (base 106 and wall 108) and is equivalent to a stiffening rib.

With adhesive 130 located near the base 106, the closing of the box is therefore safer, even if the user, on this occasion, exerts an average pressure on the flap 142.

In addition, by placing the adhesive 130 and its protective tape 131 in a single transverse line, across separate elements 113 and 114, and as low as possible in the box, the crossing of the two segments of adhesive 130 on the triangular legs is done in such a way that the horizontal segment is short but the segment very long vertical (Figure 17), which is a very good solution because it offers excellent fixation.

To increase the reliability of the fixing of the flap 142, it is also possible to adopt another solution which consists in providing on the one hand a reinforcement tab.

142a _. integral with the free edge of this flap 142 and on the other hand a slot 108a. in wall 108.

With the provisions of Figures 7 to 16, the slot 108a _. is located below the adhesive 130 and above the lower edge of the transverse wall 108, because the fixing flap 142 is lower than the transverse wall 108.

It is necessary that this slot 108a _. either below the adhesive 130 but its best situation is to be just above the bottom 106, that is to say that this security system is better suited to the embodiment of FIGS. 17 to 19 which provides that the fixing flap 142 has the same height as the transverse wall 108.

We can see, especially in Figure 18, that the tongue 142a _. enters slot 108a _. by bending at 90 ° and is placed against the bottom 106 without creating discomfort to the contents of the closed box.

The skilled person knows how to make the tongue 142a _. and the corresponding slot 108a according to different variants which will therefore not be described here.

All the containers which have just been described have in common the fact of having side walls connected directly to the base 106, at right angles. The invention allows its application to containers which have lateral edges which are very useful because they provide excellent protection of the container itself and of the packaged objects, against shocks, falls and other violent accidental forces than any container inevitably undergoes during its handling and transport. We will now describe a container of this type with reference to FIGS. 20 to 40.

In these figures, the same parts bear the same references as in the preceding figures and their description and their usefulness will only be repeated if this is useful for the proper understanding of the drawings.

The blank of FIG. 20 receives glue not only on the triangular tabs 120, 122, 125 and 127 but also on two lateral strips 160 and 161 located beyond the lateral edges of the base 106, which widens by both the blank, both at the base of the side walls 109 and 110 and along the triangular legs 120, 122, 125 and 127.

The diagonal lines 115, 116, 117 and 118 are identical to those of the previous embodiments, that is to say that they always end at the base of the side walls 109 and 110.

Pre-folding lines 162 and 163 border these strips 160 and 161 and form a separation between the side walls 109-110 and these strips 160-161.

Lines 162 and 163 therefore end at diagonal lines 115, 116, 117 and 118.

As with an embodiment described above, the blank is ready for use, during manufacture, by folding over the transverse walls 107, 108 and the base 106, on the one hand the wall assembly 109 , separate elements 111 and 113 and side strip 160 along the pre-folding line 104, and on the other hand the wall assembly 110, separate elements 112 and 114 and side strip 161 along the pre-folding line 105 (FIG. 21 ).

In this way, two folds 165 and 166 are created, after folding during manufacture, which are very useful for absorbing the shocks to which the container is subjected since they are located in front of the side walls 109 and 110. The side walls 109 and 110 being set back, the transverse walls 107 and 108 extend to the outer limit of the edges 165 and 166, thanks to their widening by the bands 160 and 161.

The side walls 109 and 110 are thus protected on three sides. It is therefore advantageous to complete this protection by the fourth side, that is to say by the closure panel 140.

Therefore, if the locking tabs 144 and 145 were, as with the previous embodiment, located at the edge of the closure panel 140, they would no longer be in alignment with the slots 158 and 159.

For all these reasons, the closure panel 140 is widened by two strips 167 and 168 which are glued against it during the folding of the blank of FIG. 20 to obtain the blank of FIG. 21.

As a result, two lateral flanges 169 and 170 are created after folding, during manufacture, which complete the protection of the recessed side walls 109 and 110. The tabs 144 and 145 are connected to these flanges

169 and 170 by pre-folding lines 171 and 172.

With the example taken here, we take advantage of the cardboard blank available on both sides of the panel 140 to create, without wasting, reinforcements 173-174 and 175-176 on either side of the lug 144 and tab 145, in one piece with the strips 167 and 168.

The strips 167 and 168, just like the reinforcements 173 to 176 can of course be fixed irreversibly to the panel 140 other than by glue placed according to the drawing in FIG. 20 (by staples in particular), or else the glue can be placed other than on flat surfaces (solid and continuous surfaces), for example: points, dots, lines, etc.

The locking tabs 144 and 145, they must not be fixed irreversibly since they must be straightened out of their plane. For this, it is possible to plan to deposit a point of glue of the same quality as that of the strips 167 and 168 because the glued surface is so small that it can easily be removed without damage. But we can also create "bridges" or "attachment points" when cutting the blank, that is to say small fractions of cardboard 177 not cut when cutting the lines which give the outline of the legs 144 and 145 and isolate them from the reinforcements 173, 174, 175 and 176, and joining the two sides of the slots coming from this cutout.

When the user wishes to straighten these locking tabs 144 and 145, they need only make a minor effort because the bridges 177 are small, fragile, and break easily by releasing the legs 144 and 145. as soon as the locking tabs are straightened 144 and 145, the user raises the side walls 109 and 110 according to the arrows F4 and continues the volume setting as indicated above: removal of the tape 131 on the separate elements 113 and 114, straightening of the transverse wall 108 and fixing by the long-acting adhesive 130.

It then engages the legs 144 and 145 in the slots 158 and 159 and, here, these legs 144 and 145 were given a length such that well before having folded down the closure panel 140, the free end of the legs 144 and 145 reaches the entrance to the slots 158 and 159, so that the user sees the two legs at the same time and can easily guide them to partially engage them. By folding down the panel 140, the user is assured that the tabs 144 and 145 will fully penetrate into the slots 158 and 159, according to the arrows F5, (FIG. 29) until the closure panel 140 is applied in stop against the flaps 150 and 151.

By observing the blank of FIG. 20, it can be seen that the locking tabs 144 and 145 can be given the same width as the walls 109 and 110, without wasting cardboard, as indicated by lines x and y _. in dashed line.

After setting in volume, the legs 144 and 145 therefore extend over the entire height of the side walls 5 109 and 110 and bear on the base 106.

In FIG. 22, it can be seen that the height H of the legs 144 and 145 is indeed equal to the height H of the walls

109 and 110 and therefore constitute effective reinforcements, increasing the crush resistance of the

10i box finished.

So that the support of the legs 144 and 145 on the base 106 is effective, their free end 144a _. - 145a _. is flat because it extends in a straight line.

As seen above, when the separate elements 111 and 112 have no adhesive, which is the case here, the triangular legs 121 and 123 are somewhat spaced from the neighboring triangular legs 120 and 122, which leaves the pre-folding line 141 offset backwards along which the closure panel 140 is articulated to the transverse wall 107.

By bringing the panel 140 forward, the user does not necessarily tighten the triangular tabs 120 and 122 towards the corresponding triangular tabs 121 and 123, so that the free ends 144a _. and 145a _. _yz - tabs 144 and 145 do not necessarily appear in the middle of the length of the slots 158 and 159.

In addition, the inclination of these legs 144 and 145 relative to the vertical of the walls 109 and 110, joined to the stress of the cardboard which tends to bring the partition 30 107 and therefore the closure panel 140 backwards, has the natural effect that the first contact between the legs 144 and 145 and the flaps 150 and 151 occurs by the rear edge of the legs with the end of the slots 158 and 159 closest to the partition 107 and the panel 140. In FIGS. 24 and 29, it can be seen that the rear edge 144b and 145b _. tabs 144 and 145 are rectilinear and that, with respect to the so-called "front" end 158a _. and 159a of the slots 158 and 159, the opposite end called "rear" 158b and 159b is wider than the front end 158a-159a _. .

In fact, experience shows that, depending on the proportions of the box, contact between the legs 144 and 145 and the flaps 150 and 151 can also occur around the middle of the slots 158 and 159.

In practice, there is therefore a choice between slots with parallel edges or slots with non-parallel edges, either because the slots are wider at one of their ends than at the other, or because they are wider in their central part.

The latter solution is clearly shown in Figures 25 to 30.

As for the straightness of the edges 144b _. and 145b, it makes it possible to exert a mechanical leverage effect when the closure panel 140 is folded down:

When the box is completely closed, the longitudinal axis of the legs 144 and 145 is parallel to the vertical edges of the walls and perpendicular to the plane of the base

106, their free ends 144a _. and 145a _. based on base 106.

Their rear edges 144b and 145b are therefore also vertical, their lower parts 144c _. and 145c _. being plumb with the rear ends 158b and 159b.

However, the folding down of the panel 140 takes place not along a straight line but along a curve which is the result of the pivoting of the wall 107 around the pre-folding line 102 and the pivoting of the panel 140 around the pre-folding line 141. Thanks to the support of the edges 144b. and 145b against the edges of the ends 158b and 159b of the slots 158 and 159, the simple action of folding the panel 140 over the packaged objects automatically causes the wall 107 to pivot and the triangular tabs 121 and 123 to fold since the edges 144b _. and 145b push on the ends 158b and 159b because the legs 144 and 145 cannot be lowered without simultaneously forcing any point whatsoever of their edges 144b and 145b to remain in contact with the ends 158b and 159b.

At the end of movement, it is therefore the upper parts 144d and 145d of these edges 144b and 145b which are situated at the ends 158b and 159b of the slots 158 and 159. The front edges 144e. and 145th _. are advantageously curved, to penetrate without gene near the front ends 158a. and 159a _. .

The existence of the edges 165 and 166 has the consequence that the triangular tabs 120-122 and 125-127 have an exposed part which vertically extends the corresponding edge 165-166, which is very advantageous.

However, the triangular tabs 125 and 127 receive extended-effect adhesive 130 over their entire width, so that if this adhesive 130 were disposed as described with the embodiment of FIGS. 7 to 19, removing the protective tape 131 at this point, would leave the adhesive 130 exposed, accessible to all dust and impurities and presenting the danger of retaining objects located near the closed box, without even mentioning the inconvenience for the user involuntarily placing their fingers on this adhesive.

To avoid this, it is advisable not to have adhesive on the outside of the triangular tabs 125 and 127, which is almost automatic if the adhesive is placed in small areas: dots, dots. When we choose to have the adhesive in a continuous line over the entire width of the blank, as described above, we create a neutral zone, that is to say without accessible adhesive, on the triangular legs 125 and 127, along a length substantially equal to the width L of the flanges 165 and 166.

According to a first solution, one avoids applying adhesive 130 at the desired location for the neutral zone 180, as can be seen in FIGS. 23 and 26. This solution is easy, especially by applying the adhesive according to the provisions described in European patent 431,144 in the name of the applicant.

On the other hand, it is more difficult not to put ribbon 131, because by working continuously, this amounts to cutting the ribbon 131 at the start of zone 180 and to start again to place it just after zone 180.

It is therefore recommended to cover the neutral zone 180 with the ribbon 131 in order to benefit from its continuous positioning, which is shown in FIG. 25. It will be recalled that this ribbon 131 is cut in line with the vertical edges 104 and 105 which separate the partition 108 and the triangular lugs 125 and 127, this cut being very easily obtained by a simple cutting blade, after the tape 131. is put in place. Another solution consists in normally depositing the adhesive 130 and its protective tape 131 then to remove them locally, which is shown in FIGS. 27 and 28.

This removal consists in cutting the cardboard from the blank, but obviously after placing the adhesive and protective tape 131, according to a window 181 which constitutes the desired neutral zone. The embodiments described above always provide for the direct retention of the triangular legs 125 and 127 (as well as possibly the triangular legs 120 and 122) against the wall 108 (as well as possibly against the wall 107) with glue. and holding the corresponding triangular tabs 121-123 and 124-126 by extended-effect adhesive 130 which joins them together without an intermediary.

The embodiment of Figures 32 to 40 provides for the maintenance of the triangular legs, and therefore separate elements 113 and 114 (and possibly 111 and 112) as a whole by different means, so that the separate elements are maintained indirectly. In these figures, the same parts bear the same references as in the preceding figures and their description and their usefulness will only be repeated if this is useful for the proper understanding of the drawings.

The blank in FIG. 32 has two so-called "blocking" flaps 184 and 185 secured to the transverse wall 108 by pre-folding lines 186 and 187 and each carrying a segment of adhesive 130 and protective tape 131.

The triangular tabs 125 and 127 do not receive adhesive 130.

On the ready-to-use blank of FIG. 33, the locking flaps 184 and 185 remain in their position and, therefore, exceed the outline of the blank.

As with the locking tabs 144 and 145 of FIGS. 7 and 8, the flaps 184 and 185 can be folded back inside the outline of the blank, by folding against the inside face of the transverse wall 108, in order to be protected from accidental catching. When the container is placed in volume (FIG. 34) the user lifts the side walls 109 and 110 according to the arrows F4, then straightens the transverse wall 108 according to the arrow F2. In doing so, the separate elements 113 and 114 fold, their triangular legs 124-125 and 126-127 bending against each other and against the wall 108.

The user folds the flaps 184 and 185 inwards according to the arrows F6, after having removed the protective tape 131 from each of these two flaps (preferably before even lifting the side walls 109 and 110).

By being fixed against the inner face of the triangular tabs 124 and 126 by the adhesive 130, the flaps 184 and 185 block all of the separate elements 113 and

114 against the transverse wall 108, which is the desired result.

This embodiment also illustrates a variant concerning the locking tabs 144 and 145, a variant which is, of course, usable independently of the embodiment chosen for the other components of the container.

Here, these tabs 144 and 145 must no longer be placed inside the side walls 109 and 110 but outside.

For this, they have here substantially the same surface as these walls and have tongues 188-189 intended to penetrate into slots 190 and 191 formed in the thickness of cardboard forming the strips 160 and 161. It is observed that here there n there are no flaps 150 and

151 because they are no longer useful.

After having set in volume and joined the side walls 109, 110 and the transverse wall 108, the user removes the protective tape 131 located on the fixing flap 142, straightens the locking tabs 144 and 145 then brings back the closure panel 140 forward, in now the legs 144 and 145 on the outside and against the walls 109 and 110.

By applying the fixing flap 142 to the wall 108, the user simultaneously tightens the separate elements 111 and 112, and the tabs 188 and 189 are automatically opposite the slots 190 and 191.

The legs 144 and 145 are held in position where they double the resistance of the side walls 109 and 110. At the place where its slots 190 and 191 are to be found, there are two thicknesses of cardboard: that of the side edge 165- 166 and that of base 106.

To block the tongue 188-189, it may suffice to constitute the slot 190-191 by a single cut of the blank perpendicular to the lateral strip 160-161, the opposite face of which constitutes the lateral edge 165-166.

But, for greater safety, the tongue 188-189 can be given a height equal to that of the two thicknesses of cardboard and a second slot 190a respectively _. and 191a in the bottom 106 proper (FIG. 32), so that after being put in place, the tongue 188-189 crosses both the lateral edge 165-166 and the bottom 106 (FIG. 38).

Another solution is to provide two tabs for each side of the container, and no longer just one 188-189. Two variants of this solution are shown in Figures 39 and 40 which each represent only one side of the container, so that what will be described for this single side is obviously the symmetrical equivalent of the opposite side not visible, whether it is the blank, the blank or the container itself.

In Figure 39, there is the tab 145 placed outside the side wall 110 and provided with a lower tab 189. Here, a second tab 189a is provided _. secured to the side of tab 145 in front be perpendicular to the bottom 106 of the upright container.

This tongue 189a is blocked by the edges of a slot 191b formed in the triangular tab 122 and, possibly in the transverse wall 107. The tongue 189a _. automatically places itself in slot 191b _. when the container is closed.

In FIG. 40, a tab 145 is shown which is less high than the side wall 110, so that it does not have a lower tongue which could not reach the level of the side edge 166.

It is then possible to provide two lateral tabs, the tab 189a, already described and another 189b on the opposite edge of the tab 145, which must cooperate with a slot.

191ç_ formed in the triangular tab 127 and, possibly in the transverse wall 108.

Naturally, it is possible to combine the different variants that have just been described, for example by providing, on the same locking tab 145 the three tabs 189, 189a _. and 189b or by placing on each edge of the tab 145 a number of tabs different from zero and one, as well as any other method of fixing the tabs 144 and 145 is possible.

By way of example, one can provide long-lasting adhesive on the legs 144 and 145 or on the walls 109 and 110.

In Figures 32 to 36, there is shown the case where the adhesive 130 and a protective tape 131 are deposited in a segment of a certain length, but it can also be a simple punctual deposit. In FIG. 32, the adhesive 130 and the protective tape 131 are provided inside the tabs 144 and 145, while in FIGS. 33 to 36, the adhesive 130 and the protective tape 131 are provided in the outside walls 109 and 110. Independently of the embodiment adopted, from that of FIG. 7 to that of FIG. 32, concerning the upright holding and / or the closing of the container, one can use the locking tabs 144-145 placed outside the walls. side 109-110 and associated with different holding means.

The presence of adhesive 130 makes the tongues 188 and 189 as well as the slots 190 and 191 unnecessary and these two possibilities are shown together here for the purpose of simplification.

As indicated above, the structure of the box and the use of a long-acting adhesive, make it possible to obtain a tamper-evident closure.

This is a high quality to ensure the integrity of the box and its contents.

On the other hand, this can become a gene for the legitimate recipient of the box when he wants to open it to access the content.

To facilitate the opening operation, provision is made under the fixing flap 142, during manufacture, for a robust and thin link 195 arranged transversely and at the two ends of which two V-shaped cuts have been made which determine two small tabs 196 and 197 (see Figures 20-22 and 29). When the box is closed, only the tabs 196 and 197 can be seen from the outside, the link 195 being on the hidden face of the flap 142 (FIG. 29).

To open the box, the user grasps one or the other of the two tabs 196 or 197 and makes the gesture of tearing it off, which has the effect of exerting a strong pull on the link 195 which is too robust to break, follows the tongue to which it is securely attached and cuts in a straight line the cardboard sheet constituting the shutter 142. The adhesive 130 always brings together (since it is an irreversible connection) the fixing flap 142 and the transverse wall 108 but since the flap 142 is cut by the opening link 195, this amounts to removing the fixing flap 142 and the user can easily disassemble the box.

This opening means, or any other equivalent, can of course be applied to all the containers in accordance with the invention, whatever the variant chosen, provided that the container has a closure panel.

In FIGS. 41 to 48, another embodiment of the invention is shown, making it possible to obtain a very simple container and of reasonable cost price. FIG. 41 represents a blank on which there are always the same elements making it possible first to form a stable part of the container: the bottom 106, two transverse walls 107 and 108 and two side walls 109 and 110, as well as the separate elements 113 and 114 which will not be re-described.

The essential difference of this embodiment compared to the previous ones lies in the constitution of a cover of the "styling" type.

For this, the closure panel 140 is secured to two side tabs 201 and 202 whose dimensions are substantially the same as those of the side walls 109 and 110, and the fixing flap 142 has substantially the same dimensions as those of the transverse wall. 108. This flap 142 is integral with two lateral tabs 203 and 204 determined by fold lines 205 and 206, and also has two 45 ° oblique fold lines, 207 and 208.

During the production of this blank, adhesive is deposited on the one hand on the triangular lugs 125 and 127 of the separate elements 113 and 114, and on the other share on the upper part 201a_-202a _. side tabs 201 and 202.

To constitute a ready-to-use blank, the fixing flap 142 is folded along lines 207 and 208 (left part of FIG. 42), which shows two triangular fractions 209 and 210 of the fixing flap 142. Then, the assembly 201, 109, 113 is folded towards the center on one side and 202, 110, 114 on the other.

This operation is still to be performed on the left side of FIG. 42 and is already accomplished on the right side.

Thus, on the one hand, the lateral tabs 203 and 204 are glued to the upper part 201a-202a _. legs 201 and 202, and on the other hand the triangular legs 125 and 127 to the transverse wall 108.

The finished blank then appears as in Figure 43.

To use this blank, the protective tapes 131 are removed from the two separate elements 113 and 114, then the transverse wall 108 is straightened towards the center according to arrow F2, while the two are straightened by spreading them apart according to arrows F4. side walls 109 and 110, which automatically brings the triangular tabs 124 and 126 against the triangular tabs 125 and 127 glued to the wall 108, to which they are fixed by means of the adhesive 130 unmasked, which is comforted by tightening between the fingers the legs 124-126 and the wall 108.

As previously described, a partially upright and completely stable container is obtained for placing the objects on the bottom 106.

To finish the container and close it, the protective tape 131 is removed from the wall 108 to unmask the adhesive 130, then the side tabs 201 and 202 are moved aside, which pulls the fixing flap 142 in the direction of its straightening. , and rotate the triangular fractions 209 and 210 along the lines 207 and 208, to bring the flap 142 and its fractions 209 and 210 substantially in the same plane.

Thus, the three faces 201-142-202 of a styling cover articulated to the transverse wall 107 have practically been set in volume (FIG. 44).

This wall 107 is straightened and the side tabs 201 and 202 are kept apart so as to lead them outside the side walls 109 and 110, and finally the flap 142 is passed in front of the wall 108 until the cover styling covers this wall 108 and the side walls 109 and 110 (Figure 45).

The external face of the flap 142 is pressed to apply its internal face 142b to the adhesive 130.

Those skilled in the art know that a styling cover 5 requires certain precautions in the precise dimensioning of the styled elements relative to that of the styling elements, so that the lid can be put in place easily, so that the means for doing this do not will not be described here. o It should be remembered, however, that one of the consequences of such a structure is that the internal face 142b of the fixing flap 142 is badly applied against the external face 148a _. of the transverse wall 148. 5 The diagram in FIG. 46 shows that here this phenomenon is all the more clear as the folds 205-206 and 207-208 tend to deform the flap 142 in the direction of its swelling, it that is to say that the "nerve" and the elasticity of the folded cardboard urge the flap 142 towards its spacing from 0 the external face 148a _. .

This creates a stress directed towards the detachment of the flap 142, by traction perpendicular to the plane of the adhesive 130.

To avoid this, two slots (at least 5) 211 and 212 are provided which pass through the thickness of the flap 142 at the level which corresponds to that of the adhesive 130 deposited. on the outer face 148a.

When one presses transversely on the outside of the shutter 142, its inner face 142b is strongly applied against the adhesive 130, and the slots 211 and 212 open by themselves, which prevents the force of the cardboard from the folds 205-206 area to be transmitted (Figure 47).

Referring now to FIG. 49, we see another embodiment of the invention concerning the arrangement of the adhesive on the separate elements 113 and 114.

One can apply the adhesive 130 and its protective tape 131 as well as the opening link 195 on the so-called "corrugator" machine which produces the corrugated cardboard from reels of paper.

But it is also possible, during the manufacture of the blanks by cutting plates, to apply the adhesive 130 and its protective tape 131, as well as possibly the opening link 195, either on the plates before their cutting, or on the blanks or blanks, after cutting.

For this, we can provide a specific operation for the installation of the adhesive 130 and its protective tape 131 but it is clear that we would like to carry out all the operations on the same machine, called

"folder-gluer".

It can then be difficult to apply the adhesive 130 and its protective tape 131 across the blank, on the transverse wall 108 and on the separate elements 113 and 114 because the folder-gluer imposes a direction of advance of the blanks which is longitudinal and not transverse.

In this case, as shown in FIG. 49, a short segment of adhesive 130 and of tape 131 can be applied to each of the two distinct elements 113 and 114 after folding the blank, in the longitudinal direction. and no longer transverse, so that these segments always cross the fold line 117-118 and extend on the two triangular legs 124-125 and 126-127. In Figure 50, we see that we take advantage of the adhesive deposit on the separate elements 113 and 114 to extend this deposit on the side walls 109 and 110, which allows, after removing the protective tape 131, d on the one hand to partially erect the container (wall 108 and side walls 109-110) and on the other hand when closing, to fix the locking tabs 144 and 145 outside and against the walls 109 and 110.

In Figure 51, we see that we take advantage of the adhesive deposit on the walls 109 and 110 to extend this deposit on the separate elements 111 and 112, so that the triangular lugs 120-121 and 122-123 are fixed l to one another, in the same way as the triangular tabs of the separate elements 113 and 114. It is observed, in fact, that the segments of adhesive 130 and of protective tape 131 do indeed cross the oblique fold lines 115 and 116 and indeed extend from one edge to the other of the separate elements 111 and 112 (FIG. 52).

It should be remembered that the presence of adhesive on these separate elements 111 and 112 is not essential since they are kept in good place, when the container is closed, by fixing the flap 142 secured to the panel 140 and the wall. transverse 107.

But this presence is useful for the comfort of the user and for the solidity of the finished container, because it allows the container to be raised by its four faces 107, 108, 109 and 110, thus creating a complete and perfectly stable bowl when introduce the articles to be packed.

Once closed, the container is particularly solid and rigid. There is therefore a choice, having the adhesive longitudinally when making the blanks, between the three solutions of Figures 49 (separate elements 113 and 114 only), 50 (separate elements 113 and 114 and walls 109 and 110) , 51-52 (separate elements 113 and 114, walls 109 and 110, separate elements 111 and 112).

On the other hand, since there is no adhesive disposed transversely, the closure of the container by the panel 140 and the flap 142 cannot be done as described above.

This closure can be obtained in two different ways, depending on whether one still wishes to use adhesive 130 or not.

Referring to FIG. 49, it can be seen that two segments of adhesive 130 and their protective tape 131 have been applied longitudinally to the flap 142, in the extension of the segments arranged on the separate elements 113 and 114.

When closing, the protective tapes 131 are removed from the shutter 142 and this shutter is applied to the outside face of the transverse wall 108.

The attachment to the transverse wall 108 is therefore done in the same way as if the segments 130-131 were crosswise. In Figures 49, 50, 51 and 52, this solution is shown using adhesive 130.

The fixing of the flap 142 can be provided with the only two segments of adhesive 130 and of protective tape 131 situated in the extension of the two longitudinal segments, but it can also be supplemented by at least one other segment, such as that which is visible on Figures 51 and 52, substantially in the axis of the container.

The second way is to provide a closing tab 220, of known type, secured to the free edge of the fixing flap 142 and to be introduced into a slot 221 formed in the transverse wall 108.

The closure is carried out as described above with reference to the tongue 142a _. and at slot 108a _. , this being equivalent to the slot 221.

Here, it is assumed that there is no adhesive at all for closing the container, so it is necessary to provide resistant and safe means.

The tongue 220 is therefore advantageously provided with two opposite teeth 222 and 223 which are folded flat on the tongue 220 before introducing everything into the slot 221, the fact of loosening the bending of the teeth 222 and 223, causing the return of the latter to their original position but after passing through the cardboard through the slot 221, against the inner face of the wall 108.

These provisions are well known in themselves and do not require further explanation.

With the embodiment of FIGS. 32 to 38, the flaps 184 and 185 hold on to the blank by the pre-folding lines 186 and 187, but the same result could also be obtained by using an additional separate element, independent of the blank.

Referring to FIG. 54, one sees such a separate element produced in the form of a simple plate 300 carrying a line of long-acting adhesive covered with a protective tape 131.

When the plate 300 is given a surface corresponding to that of the transverse wall 108, it is placed inside the box, against the folded triangular tabs 124 and 126 to which the plate 300 is fixed by the adhesive to extended effect 130.

Note that the plate 300 need not also be fixed to the transverse wall 108 since it is sufficient for it to join the two triangular tabs 124 and 126. The joining of these two legs has the effect of keeping the walls 109 and 110 upright because the plate 300 prevents them from moving apart, which also prevents the triangular legs 124 and 126 from moving away from the wall 108, so that the presence of the adhesive 130 between the triangular tabs is superfluous.

When the blanks are provided on the one hand and the separate elements on the other hand, they are grouped into two different stocks, so that at the time of packaging, the user gathers them to create an assembly conforming to the invention, the blanks and the separate elements then forming an inseparable whole since the separate elements are fixed irreversibly to the blanks.

The plates 300 can receive long-acting adhesive either longitudinally (FIGS. 54 and 55) or transversely (FIG. 56) and, after manufacture, the plates 300 are assembled in a stock like that illustrated in FIG. 55, then delivered to customers with or independently of the blanks themselves. The production of a separate element in the form of a plate 300 makes it possible to apply the invention to containers with variable height, whereby this height can be adjusted to that of the objects to be packaged, so that they are wrapped in closer to be properly maintained, immobilized and protected.

In FIGS. 57 to 64, there is shown the example of a very simple variable height container, the blank of which (FIG. 57) is an exactly rectangular band 301 which does not create any fall when it is cut from a plate, provided that the dimensions of the strip and the plate are suitably coordinated.

The strip 301 is marked with two transverse precut lines 302 and 303 on either side of a central pre-folding line 304 and between two pre-folding lines 305 and 306, which determines an end panel 307. The end panel 307 is marked with two lateral longitudinal pre-folding lines 308 and 309 and a central longitudinal pre-cutting line 310 in the general shape of a very elongated S, which joins the middle of the pre-folding line 304 and the center d a notch 311. At the end 312 of the strip 301 opposite the panel 307, long-acting adhesive 130 is placed transversely and covered with a protective tape 131.

Near the adhesive 130 and the tape 131, two symmetrical lines of perforations 313 are cut during manufacture, arranged transversely and at the two ends of which two V-shaped cuts have been made which determine two small tongues 314 and 315.

The blank of FIG. 57 receives glue on two lateral bands 316 and 317 intended to receive the margins of the panel 307 comprised between the longitudinal edges of the band 301 and the pre-folding lines 308 and 309, by folding the panel 307 along the lines 302-303-304-305-306, which makes the blank of Figure 42, the blank ready for use of Figure 58. As a result, after the panel 307 has been folded down, , during manufacture, two side edges 318 and 319 of width L, corresponding to the edges 165 and 166 of the embodiments of FIGS. 20 to 40.

The pre-folding and precut lines 308, 309 and 310 of the panel 307 give rise to two transverse flaps 320 and 321 articulated at the edges 318 and 319 and separated from each other, during packaging, by the line of central precut 310.

So that the flaps 320 and 321 do not accidentally lift when handling the blanks, two "bridges" 322 are provided, similar to those 177 of the embodiment of FIGS. 20 to 31.

During packaging, the user straightens the transverse flaps 320 and 321 and breaks the bridges 322 by using the notch 311 to slide his fingers under the flaps 320 and 321, which releases a base 323 intended for the objects to be packaged, constituted by the part of the strip 301 which extends from the lines 302 to 306 over a length equal to that of the edges 318-319. The width of the base 323 is equal to the distance between the pre-folding lines 308 and 309.

The user then places the objects to be packaged on the base 323, then places on them, according to arrow F7, a separate element 300 (Figures 59 and 60) from which he has removed the protective tape 131, then folds down the transverse flaps 320 and 321, according to the arrows F8, over the separate element 300, these flaps attaching to the separate element 300 by the long-acting adhesive 130.

The flaps 320 and 321 automatically fold at the height of the top of the objects to be packaged, forming an upper part 324-325 substantially parallel to the plane of the base 323 and a lateral part 326-327 either perpendicular to said plane, or more or less inclined. depending on the width of the objects to be packed. Only the upper parts 324 and 325 must be fixed to the separate element 300, but these parts are more or less distant from each other depending on whether the objects to be packaged are more or less high since the length of the flaps 320 and 321 being finished, it is divided into upper part 324-325 and lateral part 326-327 according to the height and the width of the objects to be packaged, these measurements being by hypothesis variable.

The separate element 300 tends to eliminate the possible difficulties arising from unforeseeable differences in the dimensions of the objects to be packaged, since it makes it possible to join the two upper parts 324 and 325, and therefore the two whole flaps 320 and 321, whatever the spacing of the edges opposite the upper parts 324 and 325. It follows from these considerations that the separate element 300 can be more or less long depending on the height of the objects to be packaged and more or less short depending on the length of these same objects (it is indeed length, although the latter is measured according to the width of the strip 301).

To be sure of covering all possible cases, two or more separate elements 300 of different lengths can be available. To illustrate this, FIGS. 59, 61 and 62 show a large object to be packaged A and a small separate element 300, while in FIG. 60, a small object to be packaged B and a large separate element 300 are shown, in fact of the same dimensions as those of the base 323.

To facilitate the correct positioning of the element 300 before final fixing of the flaps 320 and 321, two oblong windows 328 and 329 are cut out during manufacture from the carton constituting the flaps 320 and 321, in order to allow the 'user apply a finger on the element 300 through the windows 328 and 329 and slide it, if necessary, to its correct position.

After having folded down the two flaps 320 and 321 on the separate element 300 (FIG. 62), the user has both hands to complete the container, that is to say to remove the protective tape 131 located at the end 312 of the strip 301 and then to bring back over the flaps 320 and 321 and the objects to be packaged, according to the arrows F9, the part of the strip 301 situated beyond the base 323, to its end 312.

This part automatically folds along the first transverse edge 330 of the flaps 320 and 321, then along the second transverse edge 331 of these same flaps, then finally along the edge 332 corresponding to the fold line of the end panel 307 on the strip 301.

The user thus achieves a complete wrap by closing the strip 301 on itself, and immobilizes the whole by applying the end of the strip 301 against the external face of the base 323 (FIGS. 63 and 64), the adhesive 130 close of the end 312, previously unmasked, irreversibly joining the strip 301 and the base 323.

The finished container (figure 64) can receive a label to be sent by post.

The recipient opens the container to remove the wrapped objects, by grasping one or the other of the two tabs 314 or 315 and gestures to tear it off, which has the effect of exerting a strong pull on the fraction of cardboard located between the two lines of perforations 313 which yield in series and thus create a cut in a straight line which releases the strip 301 since its end 312 fixed to the outside of the container remains only integral with the base 323. Referring now to Figures 65 to 74, we see an embodiment of the invention among many other possible, according to which the separate element is integral with the blank.

In these figures, the same parts have the same references as the previous ones and their description and their usefulness will only be repeated if this is useful for the proper understanding of the drawings.

In these figures 65 to 74, the blank comprises two parallel strips 401 and 402 joined by a pre-folding line 403 with a tab 404 determined in the strip 401 by this line 404, a second pre-folding line 405 and two cutting lines 406 and 407, the latter being oriented at 45 ° relative to the axis of the strip 401.

This strip 401 is, here, longer than the strip 402, but in practice, according to the proportions which it is desired to give to the blank in order to make it compatible with a certain maximum length of the objects to be packaged, the bands 401 and 402 can be equal or unequal, one or the other being the longest.

The important thing is that the cardboard of the strip 401 is longer than that which is only necessary to form side flaps, the separate element 400 being constituted, with this embodiment, by this excess of length, so that the it is possible not only to deposit therein long-lasting adhesive 130 and its protective tape 131, but that in addition the two ends of the strip 401 can be superimposed, as will be seen a little later.

The strip 401 is marked with two pre-folding lines 408 and 409 which determine between them a central base for receiving the objects. The rule to follow to determine the length of the strip 401 is that it must be equal to twice the distance between the two lines 408 and 409, plus a more or less important length which is that intended to constitute the separate element. 400 ensuring the fixing between them of the two ends of the strip 401 over the objects to be packaged.

The strip 402 is also marked with two pre-folding lines 410 and 411, but offset from the lines 408 and 409, which are only useful if the blank is made of corrugated cardboard, the grooves of the latter are longitudinal with reference to the band 402.

The two strips 401 and 402 receive adhesive 130 along two lines located in the extension of one another. In fact, they are only one and the same line arranged at one time and cut transversely at the same time as the cutting lines 412 and 413 are created, on either side of the pre-folding line 403, which determine the two bands 401 and 402.

The pre-folding lines 408 and 409 determine between them a base 414 for receiving the objects to be packaged. The pre-folding lines 408 and 409 determine between them and the transverse edges 415 and 416 two flaps 417 and 418.

The very simple blank of Figure 65 is delivered either in the position of this figure, or after superimposition of the bands 401 and 402 by direct track along the line 403, so that this blank constitutes the finished blank, ready for use. .

When the user wishes to put the corresponding container in volume, he puts the blank in the position of FIG. 65, if it is not already, then he rotates the band 401 as indicated in FIGS. 66 and 67 to the position of figure 68.

The two strips 401 and 402 are then equivalent to a blank of the same type as that described with reference to FIG. 58, that is to say a blank ready to constitute a container with variable height formed by a strip and flaps lateral.

The user straightens the flaps 417 and 418 which fold along the pre-folding lines 408 and 409 which are spaced apart, it will be recalled, by a distance less than the width of the strip 402 (FIG. 69).

There then remain two edges 420 and 421 of width L and of the same type as those already described. The user deposits the objects to be packaged on the base 414, folds down the flap 418 and removes the protective tape 131 from the flap 417

(figure 70).

He then folds the flap 417 over the flap 418 which are fixed to one another by the adhesive 130 (FIG. 71). Note that in fact the separate element

400 is constituted by the flaps 417 and 418 together because the important thing is that they are fixed to one another.

The determination of the separate element 400 ultimately depends on the respective dimensions of the flaps 417 and 418 because they must be joined together regardless of the length and height of the objects to be packaged. The longest flap 417 must not have a length greater than the width of the strip 402 in order to be able to be applied to an object to be packaged of low height, or even almost zero. But it must have a sufficient length, as well as the flap 418, so that these two flaps can be fixed to each other by the adhesive 130, even if the objects to be packaged are thick (FIG. 71).

The user completes the container by folding the upper part (in the drawing) of the strip 402 over the separate element 400 formed by the cooperation of the two flaps 417 and 418 (FIG. 72) then the lower part (in the drawing ) of the strip 402, after removing the protective tape 131 (FIG. 73). The container is finished when the user firmly applies the end of the strip 402 so that the adhesive 130 is fixed on the other end of the same strip 402 (Figures 73 and 74).

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Claims

R E V E N D I C A T I O N S

1- Container made of cardboard or similar material, intended for the packaging of objects, formed of a blank which is formed from at least one planar blank and which has various components flat, namely a destination polygonal planar base objects to be packaged and walls adjacent to the base, to be straightened with respect to said base to form the container in volume, a so-called "closing" panel possibly being provided to close the container after being placed on the base of the objects to be packaged, characterized in that the blank is associated with at least one separate element (111-112-113-114, 300, 400) which is intended to be placed in the final active position in which, on the one hand, the base is completely unobstructed and accessible to the objects to be placed on it and, on the other hand, it brings together and maintains out of their original plane at least two components (107-108-109-110, 320-321, 417-418) of said container adjacent to the base (106, 332, 414), having a smaller surface than that of said base (106, 232, 414), and other than the possible closure panel (140), a separate element (111-112-113-114, 300, 400) which is placed flat directly against at least one of the components (107-108, 320-321, 417-418) of the container, long-acting adhesive (130) being provided to keep the components (107- 108-109-110, 320-321, 417-418) and the separate item (s) (111-112-113-114, 300, 400). 2- Container according to claim 1, characterized in that each blank (301) and each corresponding separate element (300) are separated from each other, the blanks (301) on the one hand and the distinct elements (300 ) on the other hand being grouped into two specific stocks.

3- Container according to claim 1, characterized in that each separate element (400) is, flat, inscribed in the original outline of the blank.

4- Container according to claim 1, characterized in that each blank (401) and each corresponding separate element (400) are connected to each other by a pre-folding line (408) along which said separate element (400) can be folded to go into final position. 5- Container according to claim 1, the blank of which is of the type comprising on the one hand a lateral band constituting a polygonal base for the objects to be packaged and two external walls called "transverse" and, on the other hand, two perpendicular external walls to the previous ones and said to be "lateral" and capable of being kept erected perpendicular to the plane of said base, characterized in that it comprises separate elements (111-112-113-114) intended to be placed in a position called "active""in which they maintain at least one transverse wall (108) and one side wall (109-110) adjacent erected with respect to the base (106), in the final position, means being provided for keeping the separate elements in the active position, by prolonged-effect adhesive (130) placed either on separate elements (111-112-113-114), or on at least one component (184-185) of the container, or partly on the elements separate and partly on at least one component of the container. 6- Container according to claim 5, characterized in that the long-acting adhesive (130) is arranged so that it must directly join a separate element (113-114) and a component (184-185) of the container .

7- A container according to claim 6, characterized in that the extended-effect adhesive (130) is disposed on the separate elements (113-114).

8- container according to claim 6, characterized in that the long-acting adhesive (130) is disposed on at least one of the components (184-185) of the container located opposite the separate elements (113-114) when these are in final position.

9- container according to claim 5, characterized in that each separate element (111-112-

113-114) is integral with at least one wall (107-108-109-110).

10- container according to claim 5, characterized in that the side walls (109 and 110), flat, are applied to the base (106) and are intended to be raised by releasing the base (106) to be placed in position definitive.

11- container according to claim 10, characterized in that each separate element (111-112-113-114) is constituted by a quadrangular flap having a diagonal pre-folding line (115-116-117-118) determining two triangular tabs (120-121, 122-123, 124-125, 126-127) one of which (121-123-124-126) is integral with a side wall (109-110) along an edge and another (120 -122, 125-127) of at least two separate elements (111-112, 113-114) is fixed irreversibly flat against an adjacent transverse wall (107, 108).

12- container according to claim 11, characterized in that those of the triangular tabs (120-122-125-127) which are fixed irreversibly against the adjacent wall (107-108), are by adhesive. 13- container according to claim 11, characterized in that the blank (101) has a separate element (111-112-113-114) located at each corner of the base (106) and joining two adjacent walls (107-109, 107-110, 108-109, 108-110) along pre-fold lines (102, 103, 104 and 105), with long-acting adhesive (130) being arranged in a transverse line, from one side to the other of the blank (101), passing through a transverse wall (108) and the two triangular legs (120-121, 122-123, 124-125, 126-127) of separate elements (111, 112, 113 and 114) located on either side of said transverse wall (107-108).

14- container according to claim 13, characterized in that the long-acting adhesive (130) being covered with a protective tape (131) for deferred use of said adhesive (130), this tape (131) is cut transversely to itself in line with two pre-folding lines (104 and 105) by which two separate elements (120 and 122, 125 and 127) hold on to the transverse wall (107-108). 15- container according to claim 13, characterized in that the long-acting adhesive (130) being arranged in a transverse line, from one side to the other of the blank (101), crossing a transverse wall (108) and the two distinct elements (113 and 114) located on either side of said transverse wall (108), this line of adhesive is interrupted on each of the two distinct elements (113 and 114) situated on either side of the transverse wall (108), along a neutral zone (180-181) of length substantially equal to the width of the rim (165-166).

16- container according to claim 15, characterized in that the adhesive (130) being covered with a protective tape (131), this tape (131) also covers the neutral zone (180). 17- container according to claim 15, characterized in that the adhesive (130) being covered with a protective tape (131), this tape (131) is absent from the neutral zone (181). 18- A container according to claim 15, characterized in that the neutral zone (181) is formed by a space devoid of cardboard, or similar material, which is made the blank (101).

19- container according to claim 11, characterized in that the blank (101) has separate elements (111-112-113-114) each located at at least two angles of the base (106) and joining two adjacent walls (108 -109, 108-110) along pre-folding lines (104 and 105), the long-acting adhesive (130) being arranged in two longitudinal lines each passing through the two triangular tabs (125-124, 127-126) d '' at least one of the separate elements (113 and 114).

20- Container according to claim 19, characterized in that each of the two longitudinal lines of long-acting adhesive (130) extends over a separate element (113-114) and over a side wall (109-110).

21- Container according to claim 20, characterized in that each of the two longitudinal lines of long-acting adhesive (130) extends over a separate element (113-114), over a side wall (109-110) and over a second separate element (111-112).

22- container according to claim 5, characterized in that. among the container components is at least one blocking flap (184 - 185) which is intended to hold the two distinct elements (113 and 114) adjacent to the same transverse wall (108) in final position, and which is articulated along an edge of said transverse wall (108) so that it can be folded back against the separate elements (113 and 114) when these are in the final position, the effect adhesive extended (130) being arranged either on the locking flap (184 - 185), or on each of the separate elements (113 - 114) in order to maintain them in their final position against the transverse wall (108). 23- container according to claim 5, characterized in that the walls (107, 108, 109 and 110) hold directly at the base (106), the corresponding pre-folding line (102-103-104-105) determining an edge of the base (106). 24- container according to claim 5, characterized in that the blank (101) having a lateral flange (165-166) on two sides of the base (106), the opposite side walls (109 and 110) indirectly hold at the base (106) by the rim (165-166), the corresponding pre-folding line (104-105) being located below the lateral edge (165-166) of the base (106).

25- container according to claim 1, characterized in that the base (106) is secured by a pre-folding line (102), a transverse wall (107), which is secured by a pre-folding line (141) , a closure panel (140) intended to be folded over the base (106), over the objects placed thereon, and this closure panel (140) is secured by a line of pre-folding (143), of a fixing flap (142), means being provided so that said fixing flap (142) can cooperate with a second transverse wall (108) opposite the previous one (107) in order to hold the panel closing (140) in the final position. 26- container according to claim 25, characterized in that the fixing flap (142) has a sufficient height to cover at least partially the outer face of the second transverse wall (108), the means so that said flap (142) can cooperate with said second transverse wall (108) being constituted by an extended-effect adhesive (130). 27- A container according to claim 25, characterized in that the long-acting adhesive (130) is disposed on the fixing flap (142).

28- container according to claim 27, characterized in that the long-acting adhesive (130) is disposed on the fixing flap (142) in at least two longitudinal segments.

29- Container according to claim 25, characterized in that the extended-effect adhesive (130) is disposed on the transverse wall (108).

30- Container according to claim 25, characterized in that the means so that said fixing flap (142) can cooperate with the second transverse wall (108) consist of a tongue (142a _. - 220) having to penetrate into a slot ( 108a _. - 221).

31- container according to claim 30, characterized in that the tongue (142a. - 220) is provided on the free edge of the fixing flap (142) and the slot (108a _. - 221) is formed in the transverse wall (108 ).

32- Container according to claim 30, characterized in that the tongue (220) is provided with retaining means (222-223).

33- container according to claim 25, characterized in that the closure panel (140) is provided with locking tabs (144 and 145) which must be straightened out of their plane parallel to that of the closure panel (140), and which must, after closing the container, be placed against two opposite side walls (109 and 110), fixing means (150-151, 158-159, 188-189, 190-191, 189a-189b, 191a_-191b, 130) being provided to hold these locking tabs (144-145) in position. 34- Container according to claim 33, characterized in that the blank (101) having a lateral flange (165-166) on two opposite sides of the base (106), the corresponding opposite lateral walls (109 and 110) hold on to the flange (165-166) below the sides of the base (106), and the locking tabs (144 and 145) must be placed outside of said side walls (109 and 110).

35- container according to claim 33, characterized in that the fixing means are constituted by at least one tongue (188-189-189a _. -L89b) located on a free edge of each locking tab (144-145) and intended to enter a corresponding slot (190-191-191a-191b) located against the wall (109-110).

36- container according to claim 34, characterized in that the fixing means are constituted by adhesive with prolonged effect (130) disposed either on the walls (109 and 110), or on the locking tabs (144 and 145 ).

37- Container according to claim 33, characterized in that the locking tabs (144 and 145) must be placed inside the side walls (109 and 110), these being each secured to a flap (150- 151) through a slot (158-159) in which a locking tab (144-145) must be engaged.

38- A container according to claim 36, characterized in that the slot (158-159) has two non-parallel longitudinal sides, at least over part of their length. 39- container according to claim 37, characterized in that the locking tabs (144 and 145) have a height such that their free end (144a-145a_) can be engaged in sight in the corresponding slot (158-159) then that the closing panel (140) is still far from its closed position. 40- A container according to claim 39, characterized in that each locking tab (144-145) has a straight edge (144b-145b) intended to be in contact with the end (158b-159b) called "rear" of the corresponding slot (158-159), namely the end of the slot (158-159) which is closest to the transverse wall (107) to which the closure panel (140) is connected.

41- Container according to claim 33, characterized in that the locking tabs (144 and 145) are cut from reinforcements (173-174 and 175-176) applied and fixed against the internal face of the closure panel (140).

42- container according to claim 41, characterized in that the end of the locking tabs (144 and 145) exceeds the contour of the reinforcements (173-174 and 175-176).

43- Container according to claim 1, characterized in that the blank (101) is cut from corrugated cardboard whose grooves are transverse, so that • after straightening of the components to form the container in volume, the grooves of the side walls (109 and 110) extend perpendicular to the parallel planes of the base (106) and the closure panel (140). 44- container according to claim 1, characterized in that the separate element (300) is independent and separate from the blank (301).

45- container according to claim 1, characterized in that the separate element (111-112-113-114, 300, 400) is integral with the blank (101, 301, 401-402).

46- Container according to claim 1, of the type comprising on the one hand at least one strip constituting a destination base for the objects to be packaged and at least one closure panel by wrapping and, on the other hand, transverse flaps capable of being folded over the objects placed on the base, characterized in that the separate element (300-400) is intended to be interposed between the objects placed on the base (323-414) and the flaps (320-321, 417-418) folded down.

47- Container according to claim 46, characterized in that the separate element (300) has substantially the same dimensions as the base (323).

48- Container according to claim 46, characterized in that at least one of the two dimensions of the plane of the separate element (300-400) is less than the corresponding dimension of the base (323-414).

49- Container according to claim 46, characterized in that the separate element (400) is integral with the blank (401-402) by a pre-folding line (408) along which it must be folded to be put in place.

50- container according to claim 46, characterized in that the blank being formed of two parallel strips (401 and 402) joined by a flap (404) delimited by two pre-folding lines (403 and 405) for its folding to bring by pivoting the two strips (401 and 402) one on the other and perpendicular to each other, the long-acting adhesive (130) is placed on the two strips (401 and 402), near one of their edges, in two lines located in continuation of one another, and the separate element (400) is constituted by an extension of one end of a strip (401) intended to be put in superimposition with the other end of the same strip (401), which is constituted by a flap (417), the extension (400) or the flap (417) having a length substantially equal to that of the base (414) intended for objects, located between the extension (400) and the flap (417).

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