FR2930236A1 - PACKAGING CASE COMPRISING MEANS OF INVIOLABILITY - Google Patents

Abstract

The blank for the constitution of the case comprises: - a first lateral assembly (four side walls side by side) and a connecting strip, connected by fold lines in a first direction, - two second end assemblies, connected to the first set by pivoting lines in a second direction, at least one of which comprises a closure flap, a locking tongue, two flaps, a locking tooth on the edge of each flap, two cutouts on the locking tab adapted to form two locking slots of the two locking teeth, characterized in that: - the pivot line of each flap has a curvature providing a self-locking elastic resistance function, - the free edge of each flap comprises a section in the extension of the fold line of the side side wall, without offset or lateral offset, able to come against the inner face of the folding line of the wall and the flap, providing a self-blocking anti-push resistance function.

Description

The invention relates to packaging cases comprising tamper evident means. It relates more particularly to a blank made of cardboard or the like material specially intended for the constitution of a case comprising: tamper proof means, such a volume and open case constituted by such a blank, and an assembly comprising such a shaped and locked case, comprising such tamper evidence means, and, inside, the desired content . The field of the invention is that of cases intended to receive contents likely to provoke malicious acts of persons who may be led to want to open the case to take its contents, in abnormal conditions, for example, the product in question that has not been paid. This is especially true in the case of sets (contained in their cases) whose contents are attractive (for example health products, medicines or cosmetics) and which are either presented for sale on shelves. accessible to the public is presented to professional users (emergency doctors, first responders, doctors ...) or to commercial professionals (wholesalers, retailers, pharmacists ...).

In any case, it is important to inform the buyer, the user or the merchant of the authenticity and integrity of the contents of the set sold or supplied.

The same need exists for countering the parallel market and counterfeiting using genuine packaging.

Cases, or blanks intended for the creation of cases, which are presented as inviolable or tamper-evident, for example those described in documents FRA-2794722, FR-A-2850633, EP-A-318750, are already known. EP-A-1671888, EP-A-519389, EP-A-709293, EP-A-1538089 and EP-A-1820740.

The aim of the invention is to provide a holster which at the same time is of increased tamperproofness, comprises means of very visible tamper evidence making it possible to easily detect that the holster has been opened maliciously and, if appropriate, that the case can be closed properly once opened normally, but nevertheless with a visible indicator of this opening. For this purpose, and according to a first aspect, the invention provides a blank made of cardboard or the like material specially intended for the constitution of a case comprising tamper proof means, comprising: a first set sidewall comprising four side walls side by side - a base wall, an opposing locking wall and two opposite side walls - and a terminal connecting strip, connected by fold lines extending in a first direction, - two seconds end assemblies placed on either side of the lateral assembly along the first direction, connected to the first assembly by pivot lines extending in a second direction substantially perpendicular to the first direction. at least one of the two second assemblies comprising: an end closure flap, in the extension of the base lateral wall, connected thereto by a closing / opening pivoting line; a locking tongue, in the extension of the end closure flap, connected to the flap by a locking / unlocking pivot line. two flaps, in the extension of the two side side walls, connected to them by two flap pivoting lines, a locking tooth, on the free edge of each flap which extends in the first direction and is turned towards the locking side wall, - two or a U-shaped cut-out (s) or the like, each of the two U-shaped cuts or the U-cut being formed on the locking tongue being adjacent by the ends of its branches to the pivot line locking / unlocking, suitable (s), once the blank shaped to form the case, to form, respectively, two or a slot (s) for locking the two locking teeth, characterized in that: - the line of pivoting of each flap has a curvature or the like ensuring a self-locking elastic resistance function, - the free edge of each flap which extends in the first direction and is turned towards the base side wall, comprising for a certain length from the side side wall, a section located in the extension of the corresponding fold line of the lateral side wall, without offset or lateral recess, thus being able to come against the inner face of the fold line of the base side wall and the end closure flap, providing a self-blocking thrust resistance function.

According to one embodiment, said at least one of the two second assemblies also comprises at least a first line of lower curved resistance, formed on the locking side wall, the ends of which, adjacent to the free edge adjacent to the locking wall, are located on either side of the or the slot (s) locking once the blank shaped to form the holster, so as to delimit between it and this free edge adjacent the locking wall a first tear-off blank area torn off during the opening of the case, this first line of lower resistance and this first tear-off area acting as tamper-proof indicator means, the first torn blank area does not prevent the reclosing of the case.

According to one embodiment, the greatest length of the first tear-off blank area, counted along the first direction, is greater than the length of the portion of the locking tongue coming face-to-face once the blank has been shaped to constitute the holster, so as to arrange between them, once the first torn blank area torn off, a gripping space adapted to allow the introduction of a finger or an instrument for the complete opening of the holster.

According to one embodiment, the free edge of the locking tab extending in the second direction is curved convexly turned towards the end closure flap to participate in the delimitation of the entry space able to allow the introduction of a finger or an instrument for the complete opening of the case. According to one embodiment, in the said at least one of the second two sets, the free edge of the locking wall is slightly outward projection, this slight outward projection providing an anti-burglary function.

According to one embodiment, the locking / unlocking pivot line of the locking tab has a curvature or the like providing a self-locking elastic resistance function.

In one embodiment, the curvature or the like of the pivot line of each flap or the locking / unlocking pivot line of the locking tab is a slightly curved or slightly non-linear crease.

According to one embodiment, the blank comprises one (or two) second (s) line (s) of lower strength, the or each of the two second lines of lower resistance being formed on the end closure flap between a cutout U-shaped or in its vicinity and the free edge close to the end closure flap, so as to delimit between it, this free edge and the locking / unlocking pivot line of the locking tab, a second tear-off blank area, pulled off when opening the case, this (or these) second (s) line (s) of lower resistance and this (or these) second (s) zone (s) tear (s) acting 35 tamper evidence means, the (or) second (s) blank area (s) torn (s) preventing the reclosing of the holster 15 -4- In one embodiment, the blank has a second line of more low substantially rectilinear directional resistance, extending substantially between the outer edge of the or one of the two U-shaped cut-outs and the free edge near the end closure flap extending in the first direction, the second tear-off blank area having a generally triangular shape, so that the two seconds line of lower resistance, when there are two, extend divergently from the locking / unlocking pivot line of the locking tongue.

According to one embodiment, the portion of the free edge of each flap located in the extension of the corresponding fold line of the side side wall, is of the order of at least about one tenth of the length of the shutter counted from side side wall.

According to one embodiment, a locking tooth is spaced from the free end of the free edge of the flap on which it is located, more specifically is located at or near two-thirds of the length of the flap counted along the first direction.

According to one embodiment, the free edge of each flap on which the locking tooth is located has, for a certain length from the lateral side wall, a section situated generally in the extension of the corresponding fold line of the side wall. side, with a shift or lateral recess, inwardly, thus being adapted to come opposite the inner face of the locking side wall with a day ensuring the function of passage of the locking tab.

In one embodiment, the tip of a locking tooth is set back inwardly from the line located in the extension of the corresponding fold line of the side side wall.

According to one embodiment, the spacing set back from the point of a locking tooth with respect to the line situated in the extension of the corresponding fold line of the side side wall is greater than the lateral offset or offset of the section. the free edge of each flap on which the locking tooth adjoining the lateral side wall is located,

In one embodiment, the width of the end closure flap between its closing / opening pivot line and the locking / unlocking pivot line of the locking tab, counted along the first direction, is slightly smaller than the sidewall width between its two fold lines, counted along the second direction. According to a first embodiment, the dimensions are chosen so that, once the blank is shaped and locked to form the holster, the two locking teeth are spaced from each other and cooperate, respectively, with two slots separate locking means, one tooth per slot, the blank having two U-shaped cutouts spaced from each other in the second direction.

According to this embodiment, the blank comprises a third line of lower resistance, curved, formed on the end closure flap extending substantially between the inner edge of the two U-shaped cutouts of the locking / unlocking pivot line of the locking tongue, so as to delimit between it and the locking / unlocking pivot line of the locking tab a third tear-off blank area, torn off when opening the case, this third line of lower strength and this third tear-off zone acting as a tamper evidence means.

According to a second embodiment, the dimensions are chosen so that, once the blank shaped and locked to form the case, the two locking teeth are superimposed or close to each other, so as to cooperate with the same slot locking, the blank having a single U-shaped cutout.

According to one embodiment, two cuts are provided with or without removal of material at the two end parts of the locking / unlocking pivot line of the locking tab, able to cooperate with the section situated in the extension of the corresponding fold line. lateral side wall, with offset or lateral recess, of the free edge of each flap on which the locking tooth is located.

In one embodiment, the edge of the latch side panel extending in the second direction is a free edge from which no wall, flap, tongue, flap, or the like extends.

In one embodiment, the two second sets are analogous. According to this embodiment and a first variant, the same side wall acts as a base wall for a first second set and a locking wall for a second second set.

According to this embodiment and a second variant, the same side wall acts as a base wall or a locking wall for a first and a second second assembly. According to a second aspect, the invention proposes a holster consisting of a blank as just described, the terminal connecting strip being secured to the opposite end side wall, one or both of the second end assembly (s) being in the open state.

According to a third aspect, the invention proposes an assembly comprising a shaped and locked case, comprising the inviolability witness means, and, inside, a content, the case being constituted by a blank such as it comes from be described, the terminal band of connection being secured to the opposite end side wall and the two second end assemblies being in the closed state, the inviolability witness means being constituted by the first, the second, the third zone; (s) tear off (s).

According to one embodiment, (i) the two flaps are located substantially in the plane of the opening defined by the side walls, the section of the free edge of each flap located in the extension of the corresponding fold line of the lateral side wall. , without recess, coming against the inner face of the fold line of the base side wall and the end closure flap; (ii) the end closure flap is disposed flat against the two flaps and closes the opening defined by the side walls; (iii) the locking tongue is disposed substantially perpendicular to the end closure flap and against the inner face of the locking wall, the two or the U-shaped cutout (s) formed on the locking tongue forming the two or the slot (s) suitable for locking the two locking teeth; and (iv) the two locking teeth of the two flaps are locked in both or the locking slot (s).

The invention will be better understood on reading the following description of several embodiments and embodiments, with reference to the following figures:

FIG. 1 is a plan view of a first variant embodiment of a blank according to the invention shown flat, this blank having for each second set two U-shaped blanks. FIG. 2 is a schematic view illustrating a blank. case made from the blank according to the first variant of Figure 1, this view being a theoretical presentation of the case for viewing its arrangement.

- Figure 3 is a partial view on a larger scale of Figure 1 of a flap and adjacent parts of the blank.

- Figure 4 is a partial view on a larger scale of Figure 1 of a flap and the adjoining locking tab. FIG. 5 is a plan view of a second variant embodiment of a blank according to the invention presented flat, this blank having for each second assembly a single U-shaped blank. A blank 1 according to the invention is especially intended for the constitution of a case 2 comprising means 3 inviolability witness. For this reason, the constitution of the blank 1 induces that of the case 2. Similarly, the description of the blank 1 induces that of the case 2.

The blank 1, the case 2 is made from cardboard or a similar sheet material, of suitable thickness for use.

As will be seen in detail later, the sheet constituting the blank 1 comprises a number of fold lines or pivot lines, each between two panels of the blank 1. The word panel is here used in its generic sense to designate a certain zone identified as such of the sheet constituting the blank 1, whatever the function, the size and the shape of this zone. Such a folding or pivoting line may be made by creasing the sheet constituting the blank 1. Such a folding or pivoting line is intended either for mounting the case 2 from the blank 1, which involves relative pivoting 20 panels relative to each other is pivoting for the opening or closing of the case 2.

On the other hand, and as will also be seen later, the constituent sheet of the blank 1 comprises lines of lower strength capable of constituting zones of weakness of the case 2, which can be torn off or torn when Sufficient effort is applied. Such a line of lower strength can be achieved by a continuous or discontinuous precut (for example in the form of stairs or the like (see figures for the second lines of lower resistance) of the sheet constituting the blank 1 or by perforations .

The effort applied is either that normally applied by a user wanting to open the case 2 or that applied by a malicious person.

The blank 1 allows the constitution of a case 2, in volume and open. The case 2 can then receive a content and then be permanently shaped and locked. In this state, the case 2 has increased tamper resistance. It can be closed if it has been opened appropriately. As a result of an act of malevolence, the means 3 witness inviolability, very visible, can easily detect that the case 2 has been opened.5 -8- The case 2 is indeed intended to receive a content of nature to be able to arouse malicious acts of people wanting to open the case to take the contents. This is especially true in the case of sets (contained in their cases) whose contents are attractive (for example health products, medicines or cosmetics) and which are either offered for sale on accessible shelves to the public is presented to professional users (emergency doctors, first-aid workers, doctors ...) or to commercial professionals (wholesalers, retailers, pharmacists ...).

In any case, it is important to inform the buyer, the user or the merchant of the authenticity and integrity of the contents of the set sold or supplied.

The same need exists for countering the parallel market and counterfeiting using genuine packaging. The blank 1 consists of a first lateral assembly 4 and two second end assemblies 5.

The first lateral assembly 4 comprises four lateral side-by-side walls, namely a base side wall 6, a lateral locking wall 7 and two side side walls 8a, 8b. The first lateral assembly 4 also comprises a terminal link band 9. In the embodiment of FIG. 1, these lateral walls 6, 7, 8a and 8b and this band 9 follow one another in the following order: band 9, locking wall 7, side wall 8a, base wall 6 and wall of FIG. side 8b.

In all cases, a side wall 8a or 8b is interposed between the base wall 6 and the locking wall 7, while the band 9 is located at one end of the blank 1.

The side walls 6, 7, 8a and 8b and the strip 9 are connected by four fold lines extending in the same first direction D1 located in the plane of the blank 1: a fold line 10 between the strip 9 and the lock wall 7; a fold line 11 between the locking wall 7 and the side wall 8a; a fold line 12 between the side wall 8a and the base wall 6; and a fold line 13 between the base wall 6 and the side wall 8b.

The base wall 6 and the locking wall 7, which are similar to one another, are opposite each other, in particular arranged parallel to one another in the case 2. presentation of Figure 2, the locking wall 7 is a vertical front wall, while the base wall 6 is a rear vertical wall. Similarly, the two side walls 8a, 8b of side, similar to each other, are opposite to each other, in particular arranged parallel facing each other in the case 2. Finally, in the case 2, the walls 6 and 7 are arranged substantially perpendicular to the side walls 8a, 8b. This arrangement makes it possible to produce a case 2 of generally parallelepipedal shape.

It should be understood that the invention may be transposed to other forms.

The basic, locking and side qualifiers are given in order to distinguish the walls from each other, in relation to the function or the position of the walls in the case 2 and this, relative to the second end assembly 5.

According to the embodiment of FIG. 1, one and the same side wall acts as a base wall 6 or a locking wall 7 for a first and a second second assembly 5. According to the embodiment of FIG. base wall 6 for a first second assembly 5 and locking wall 7 for a second second assembly 5.

The walls 6, 7, 8a and 8b have substantially the same length, in the direction of the first direction D1, the side wall 7 locking being, in one embodiment, slightly larger as will be described. Their widths in a second direction D2 located in the plane of the blank 1 (or the wall in question thereof) and disposed substantially orthogonal to the first direction D1, are identical or not. For example, in a typical embodiment, the walls 6, 7 have the same width L1, which is generally larger than that L2 of the walls 8a, 8b. However, the invention also relates to the case where the width L1 is equal to L2 or the case where the width L2 is greater than L1.

In the holster 2 in volume and open, as in the case 2 permanently shaped and locked, the terminal band connecting 9 is rigidly secured to the opposite end side wall, in this case the side wall 8b. This joining is performed by gluing or the like. The case 2 then has a generally tubular parallelepiped shape.

The edge 28 of the locking panel 7 extending in the second direction D2 is a free edge from which no wall, flap, tongue, flap or the like extends, as is clearly visible in the figures. Furthermore, in one embodiment, this free edge 28 is slightly protruding towards the outside of the blank 1 or the case 2, the locking wall 7 being thus slightly longer than the other side walls 6, 8a and 8b, as just indicated. This slight protrusion towards the outside of the free edge 28 which, in the case 2 produced, is placed in the vicinity of the pivoting line 17 of locking / unlocking of the tongue 16, provides an anti-burglary function.

The two second sets 5 are intended to ensure the closure of the case 2 permanently shaped and locked at both ends. For this purpose, the two second end assemblies are placed on either side of the first lateral assembly 4, along the first direction D1. They are connected to the first set 4 by pivot lines extending in the second direction D2.

According to the embodiments, the second two sets 5 are analogous or not. According to the embodiments, the relative positions of the two second assemblies 5 with respect to the first lateral assembly 4 are opposite (FIG. 1) or offset (FIG. 5).

The structure of at least one of the two second assemblies 5 according to the invention is now described.

This second assembly 5 comprises in the first place a flap 14 qualified as an end closure located (with respect to the blank 1) in the extension of the base wall 6 (thus qualified for this reason) and connected to it by a line pivoting device characterized as closure / opening 15.

The flap 14 has a width L3, counted in the direction D1 adapted to the width L2 of the side walls 8a, 8b, so as to be able to conceal the corresponding end of the first set 4 set volume. In the embodiment considered, the width L3 of the flap 4 is slightly smaller than the width L2 of the side walls 8a, 8b.

This second assembly 5 comprises, secondly, a tab 16 qualified as a lock, situated in the extension of the end closure flap 14 (in the opposite direction to the wall 6), connected to it by a so-called locking / pivoting line. unlocking 17.

This tongue 16 is limited, opposite the locking / unlocking pivot line 17 by a free edge 18.

In one embodiment, the locking / unlocking pivot line 17 of the tongue 16 has a curvature or the like. Such curvature or the like provides a function of self-locking elastic resistance of the tongue 16. The latter, once in position, tends to remain there. This constructive arrangement has the effect of accentuating the removal of the tongue 16 under the flaps 19a, 19b of the case 2, without preventing the mechanization of the packaging. The second assembly 5 comprises thirdly two flaps 19a, 19b located (with respect to the blank 1) in the extension of the two walls 8a, 8b, respectively, and connected to them by two flap pivot lines, respectively 20a, 20b.

Each of the pivot lines 20a, 20b of each flap 19a, 19b has a curvature or the like. Such a curvature or the like provides a function of self-locking elastic resistance of the flap 19a, 19b, which means that the flap 19a, 19b once placed in the plane of the opening of the case 2 tends to remain there, including when it is urged towards the inside of the case 2 by the tongue 16 during its locking. It follows that the locking teeth 24 of the case 2 penetrate easily and securely into the locking slots 29, which contributes to the desired purpose.

In one embodiment, the curvature or the like of the pivot lines 20a, 20b has a convexity or pseudo convexity directed towards the flap 19a, 19b and a concavity or pseudo concavity directed towards the wall 8a, 8b of adjoining side.

The curvature or the like of the locking / unlocking pivot line 17 of the tongue 16 or the pivot line 20a, 20b of each flap 19a, 19b can be the subject of different embodiments. In one embodiment, the curvature or the like is constituted by a curved or non-linear crease forming an angle.

We now more specifically describe the flaps 19a, 19b.

The flaps 19a, 19b are similar and arranged symmetrically opposite on either side of the side wall 6 or 7 which separates and which they are adjacent.

We can therefore describe only one of the components, for example the flap 19a (see Figure 3).

The flap 19a is limited in the first place by a free edge 21 which extends in the first direction D1 and is turned towards the base wall 6.

This free edge 21 has, at least for a certain length from the adjoining side wall 8a, a section 22 located in the extension, in particular exact or almost exact, of the corresponding fold line 12 of the wall 8a from the side with the base wall 6. This constructive arrangement is such that this section 22 does not form, as is known in the standard manner in the state of the art, an inward recess.35 -12- The section 22 is thus able to come against the inner face of the fold line 15 of the base wall 6 and the end closure flap 14, providing a self-blocking anti-thrust resistance function (external thrust, in the plane of the flap of closing the case closed, on the fold line), avoiding inadvertent release of the locking tab 16 once it has been fixed by the flaps 19a, 19b at the time of locking the case 2.

In one embodiment, the section 22 has a length of the order of at least about one-tenth of the length L4 of the flap counted from the lateral side wall 8a, in the direction of the first direction D1. The flap 19a is limited secondly by a free edge 23 which extends in the first direction D1 and is turned towards the locking wall 7. This free edge 23 is shaped to define a locking tooth 24 projecting in the second direction D2 towards the locking wall 7. The free edge 23 has, extending over a certain length from the wall 8a from the side, a section 25 situated generally in the extension of the fold line 11 of the side wall 8a, with, as is well represented on FIG. 3, a lateral offset or recess 26. As a result, the free edge 23 is able to face the inner face of the locking wall 7 with one day ensuring the function of passage of the locking tab 16.

The tip of the locking tooth 24 is also spaced back from the line located in the extension of the fold line 11 of the side wall 8a.

As shown in FIG. 3, the spacing set back from the tip of the locking tooth 24 (with respect to the line situated in the extension of the fold line 11 of the wall 8a from the side) and greater than the offset or recess 26 of the section 25 of the free edge 23.

The flap 19a is limited on one side by the pivot line 20a and, on the opposite side, by a free edge 27 extending in the direction D2 and connecting the free edges 21 and 23.

The spacing between the pivot line 20a and the free edge 27 defines the length L4.

The length L4 is at most equal to (or more exactly slightly less than) the width L1 of the walls 6, 7. Most often, L4 is a fraction of L1, for example of the order of one-third to a little more than In the embodiment of FIGS. 1 and 2, it is provided that in the case 2 made, the two locking teeth 24 cooperate with two distinct locking slots 29, one tooth 24 per slot 29.

These two locking slots 29 are obtained once the blank 1 shaped by folding constituent panels. For this purpose, there is provided on the blank 1 two blanks 30, U-shaped or of similar form. Each of these two cutouts 30 is formed on the locking tab 16, being adjacent by the ends of its branches to the line 17 of pivoting locking / unlocking of the tongue 16.

The two cutouts 30 and the two slots 29 are spaced from each other along the second direction D2 and the line 17 of pivoting locking / unlocking by a space 31.

Of course, the dimensions of the blank 1 and its constituent elements are chosen so that, once the blank shaped to form the case, the two locking teeth 24 are also moved away from each other and can cooperate, respectively, with the two locking slots 29.

In the embodiment of FIG. 5, it is provided that in the case 2 made, the two locking teeth 24 cooperate with a single locking slot 29, the two teeth being superimposed or close to each other in this case. same slot 29. The dimensions of the blank 1 and its constituent elements are then chosen so that, once the blank 1 shaped to form the case 2, the two locking teeth 24 are superimposed or close to each other .

In one embodiment, two cutouts 32, with or without removal of material, are provided at the two end portions of the line 17 for pivoting the locking / unlocking of the tongue 16.

These two cutouts 32 are provided so as to cooperate with the sections 25 of the free edges 23 of the flaps 19a, 19b, when the case 2 is shaped and locked.

The blank 1 and the case 2 which it allows to constitute, comprise, as mentioned, a number of lines of lower strengths to constitute weakening zones of the case 2, can be torn or torn when sufficient effort is applied.

On the second assembly 5 which has just been described, there is provided a first line of lower resistance 33, formed on the wall 7 of locking. Here, this line of lower resistance 33 is curved and forms a substantially semicircle. This form is however not exclusive, others are also adapted to the job.

The ends of the first line of lower resistance 33 are adjacent to the adjacent free edge 28 of the locking wall 7. They are located on both sides of the two locking slots 29, once the blank 1 shaped to constitute the case 2.

In doing so, the first line of lower resistance 33 delimits between it and the neighboring free edge 28 of the locking wall 7 a first zone 34 of tear-off blank. This first torn zone 34 is torn off when the case 2 is opened.

The first line of lower resistance 33 and the first tear-off zone 34 act as tamper-indicating means 3, the first blank zone 34 not preventing, however, the reclosing of the case 2.

In addition, it is expected that the length of the first torn blank area 34, counted in the first direction D1 is greater than the length of the portion of the locking tab 16 coming next once the blank 1 shaped to form the case 2. This constructive arrangement makes it possible to arrange between the first line of lower resistance 33 and the free edge 18 of the locking tab 16, once the first torn blank area 34 is torn off, a gripping space capable of permitting the introduction of a finger or an instrument for the complete opening of the case 2.

To participate in the delimitation of this entry space, it is provided in the embodiment shown, that the free edge 18 of the locking tab 16 is curved convexity facing the end closure flap 14.

On the second assembly 5 which has just been described, there is provided two second line of lower resistance 35, formed on the end closure flap 14 between a U-shaped cutout 30 or its vicinity - and especially its outer edge. 36 - and the free edge 37, close to the flap 14, this free edge extending in the first direction D1.

In doing so, each second line of lower resistance 35 delimits between it, the free edge 37 and the pivot line 17 for locking / unlocking the tongue 16, a second tear-off blank area 38. This second tear-off zone 38 is torn off during The second two lines of lower resistance 35 and these two second tear-off zones 38 act as inviolable tamper means 3, the two second blank zones 38 being cut off preventing the reclosing. of the case 2.

In the embodiment of FIG. 1, each second line of lower resistance 35 is of substantially rectilinear direction. It extends substantially between the outer edge 36 of one of the two U-shaped cutouts 30 and the near free edge 37 of the end closure flap 14. In the illustrated embodiment, each second line of lower strength is discontinuous and stair-shaped or the like.

Thus, the second tear-off blank area 38 has a generally triangular shape. And the second and second lines of lower resistance 35 extend divergently from the pivot line 17 for locking / unlocking the tongue 16.

On the second assembly 5 which has just been described, there is also provided a third line of lower resistance 39 formed on the flap 14. This third line of lower resistance 39 is here curved in the form of a semicircle or shaped analogous to the use, between a U-shaped cutout or its vicinity - and especially its inner edge 40 - and the latching / unlocking pivot line 17 of the locking tab 16.

In doing so, the third line of lower resistance 39 delimits between it and the pivoting line 17 of locking / unlocking of the tongue 16, a third tear-off blank area 41. This third tear-off zone 41 is torn off during the opening of the case 2. This third line of lower resistance 39 and this third tear-off zone 41 act as means 3 tamper evidence, the third area 41 of blank torn is likely otherwise to prevent the reclosing of the case 2 at least to make very visible its untimely opening. The invention relates not only to the blank 1 described but also the holster 2 in volume and open. This case 2 is constituted by the blank 1 whose side walls 6, 7, 8a and 8b have been folded around their fold lines 10, 11, 12 and 13, and whose terminal binding strip 9 has been secured to the opposite end side wall, in this case the side wall 8b, by gluing or the like. In this situation, the second end assemblies 5 are in the open state.

Such a case 2 may be filled with its contents. The invention concerns not only the case thus shaped and open, pre-finished, but also the assembly comprising a case 2 shaped but also locked.

In this case 2, which contains the desired content inside, the two second end assemblies 5 have been closed.

The tamper proof means 3 are thus constituted by the first tear-off zone 33, the second tear-off zone 38 and the third tear-off zone 41.

In this set, for each second set 5, the two flaps 19a, 19b are located substantially in the plane of the opening of the case 2, delimited by the side walls 6, 7, 8a and 8b. The section 22 of the free edge 21 of each flap 19a, 19b comes against the inner face of the fold line 15 of the base wall 6 and the end closure flap 14.

For its part, the flap 14 end closure is disposed flat against the two flaps 19a, 19b, and thus closes the opening defined by the side walls 6, 7, 8a and 8b.

The locking tongue 16 is, for its part, disposed substantially perpendicularly to the end closure flap 14 and against the inner face of the locking wall 7.

The passage of the locking tab 16 is ensured as a result of the presence, on the free edge 23, of the section 25 with the offset or lateral recess 26. In addition, the two cutouts 32 cooperate with the sections 25 of the free edges 23 of the flaps 19a, 19b.

These two cutouts 32 are provided so as to cooperate with the sections 25 of the free edges 23 of the flaps 19a, 19b, when the case 2 is shaped and locked.

The two U-cuts 30 provided on the locking tongue 16 form, as shown, the two locking slots 29. The two locking teeth 24 are locked in the two locking slots 29.35

Claims (26)

CLAIMS1- Blank (1) made of cardboard or similar material specially intended for the constitution of a case (2) comprising means (3) tamper evidence, comprising: - a first lateral assembly (4) comprising four side walls rib to a base wall (6), an opposing locking wall (7) and two opposing side walls (8a, 8b) and an end connecting strip (9) connected by fold lines (10, 11) to one side wall (6). , 12, 14) extending in a first direction D1, - two second end assemblies (5) placed on either side of the lateral assembly (4) along the first direction D1, connected to the first together by pivoting lines (15) extending in a second direction D2 substantially perpendicular to the first direction D1 - at least one of the two second assemblies (5) comprising: - an end closure flap (14), in the extension of the base side wall (6), connected to it by a line of closing / opening pivot (15), - a locking tab (16), in the extension of the end closure flap (14), connected to the flap (14) by a locking / unlocking pivot line (17) - two flaps (19a, 19b), in the extension of the two lateral side walls (8a, 8b), connected to them by two flap pivoting lines (20a, 20b), - a locking tooth (24), on the free edge (23) of each flap (19a, 19b) which extends in the first direction D1 and is turned towards the locking side wall (7), - two or a U-shaped cutout (30) or the like, each of the two U-shaped cutouts (30) or the cutout U being provided on the locking tongue (16) being adjacent by the ends of its branches to the locking / unlocking pivot line (17), suitable ( s), once the blank (1) shaped and locked to form the case (2), to form, respectively, two or a slot (s) (29) of ve scrubbing the two locking teeth (24), characterized in that: - the pivoting line (20a, 20b) of each flap (19a, 19b) has a curvature or the like providing a self-locking elastic resistance function, - the edge (21) of each flap (19a, 19b) which extends in the first direction D1 and is turned towards the base side wall (6), has, over a certain length from the side side wall, a section (22) located in the extension of the corresponding folding line (12) of the lateral side wall (8a), without offset or lateral recess, thus being able to come against the internal face of the fold line (15) of the base side wall (6) and the end closure flap (14), providing a self-locking push-back function. 2- blank (1) according to claim 1, characterized in that the said at least one of the second two sets (5) also comprises at least a first line of lower resistance (33) curved, formed on the locking side wall (7), whose ends, adjacent to the adjacent free edge (28) of the locking wall (7), are located on either side of the or the slot (s) locking (29) once the blank (1) shaped to constitute the case (2), so as to delimit between it and this free edge close to the locking wall a first zone (34) blank (1) tearable, torn at the opening of the holster (2), this first line of lower resistance (33) and this first tear-off zone (34) acting as a tamper-indicating means (3), the first blank area (34) torn off does not prevent the reclosing of the case (2). 3- blank (1) according to claim 2, characterized in that the length of the first blank area (34) peelable, counted along the first direction Dl, is greater than the length of the portion of the tongue ( 16) next to the blank (1) shaped to form the holster (2), so as to arrange between them, once the first blank area (1) torn off, a gripping space suitable for allow the introduction of a finger or an instrument for the complete opening of the case (2). 4. blank (1) according to claim 3, characterized in that the free edge of the tongue (16) extending in the second direction D2 is curved convexity facing the flap (14) end closure to participate in the delimitation of the input space adapted to allow the introduction of a finger or an instrument for the full opening of the case (2). 5-blank (1) according to any one of claims 1 to 4, characterized in that, in said at least one of the second two sets (5), the free edge (28) of the locking wall (7) is slightly protruding outwards, this slight protrusion outwards providing an anti-burglary function. 6 blank (1) according to any one of claims 1 to 5, characterized in that the pivoting line of locking / unlocking (17) of the tongue (16) has a curvature or the like ensuring a resistance function self-locking elastic. 7- blank (1) according to any one of claims 1 to 6 characterized in that the curvature or the like of the pivot line (20a, 20b) of each flap (19a, 19b) or line-19- locking / unlocking pivoting (17) of the locking tongue (16) is constituted by a slightly curved or slightly non-linear creasing. 8- blank (1) according to any one of claims 1 to 7, characterized in that it comprises one (or two) second (s) line (s) of lower resistance (35), the or each of the two second lines of lower resistance (35) being provided on the end closure flap (14) between a U-shaped cutout (30) or its vicinity and the free edge (37) close to the closure flap (14); end, so as to delimit between it, this free edge and the locking / unlocking pivot line (17) of the tongue (16) locking, a second 10 blank area (38) tearable, torn at the opening of the case (2), this (or these) second line (s) of lower resistance (35) and this (or these) second (s) zone (s) tear (s) (38) making tamper-proof means function (3), the (or) second (s) blank area (s) (38) torn (s) preventing the reclosing of the case (2). 15 9- blank (1) according to claim 8, characterized by a second line of lower resistance (35) of substantially rectilinear direction, extending substantially between the outer edge (36) of the or one of the two cutouts (s). ) (30) and the near free edge (37) of the end closure flap (14) extending in the first direction D1, the second tapered blank area (38) having a generally triangular shape, that the two second weakest line (35), when there are two, extend divergently from the locking / unlocking pivot line (17) of the locking tongue (16). 10- Blank (1) according to any one of claims 1 to 9, characterized in that the section (22) of the free edge of each flap (19a, 19b) located in the extension of the corresponding fold line (12). ) of the side side wall (8a), is of the order of at least about one tenth of the length of the flap (19a, 19b) counted from the side side wall (8a, 8b). 11- Blank (1) according to any one of claims 1 to 10, characterized in that a tooth (24) locking is spaced from the free end of the free edge (23) of the flap (19a, 19b) on Which it is, more specifically is located at or near two-thirds of the length of the flap counted along the first direction D1. 12- blank (1) according to any one of claims 1 to 11, characterized in that the free edge (23) of each flap on which is the tooth (24) locking comprises, over a certain length from of the lateral side wall, a section (25) situated generally in the extension of the corresponding fold line (11) of the lateral side wall (8a), with an offset or lateral recess (26), towards the inside , thus being able to face the inner face of the locking side wall (7) with a day ensuring the function of passage of the tongue (16) locking. 13- blank (1) according to any one of claims 1 to 12, characterized in that the tip of a tooth (24) locking is spaced indented, inwardly, of the line located in the extension of the corresponding folding line (11) of the lateral side wall (8a). 14- blank (1) according to any one of claims 12 and 13, characterized in that the spacing set back from the tip of a tooth (24) locking relative to the line located in the extension of the line corresponding folding of the side side wall and greater than the offset or lateral recess (26) of the free edge section of each flap on which the locking tooth (24) adjoining the side side wall (8a) is located , 15- Blank (1) according to any one of claims 1 to 14, characterized in that the width L3 of the end closure flap (14) between its closing / opening pivot line (15) and the line of closure the locking / unlocking pivot (17) of the locking tongue (16), counted along the first direction D1, is slightly smaller than the side wall width L2 (8a, 8b) between its two fold lines ( 11, 12), counted along the second direction D2. 16- blank (1) according to any one of claims 1 to 15, characterized in that the dimensions are chosen so that, once the blank (1) shaped and locked to form the case (2), the two teeth (24) are spaced from each other and cooperate, respectively, with two separate locking slots (29), one tooth (24) per slot (29), the blank (1) having two cutouts (30). ) in U spaced from each other in the second direction D2. 17- Blank (1) according to claim 16, characterized in that it comprises a third line of lower resistance (39), curved, formed on the flap (14) end closure extending substantially between the edge interior (40) of the two U-shaped cuts (30) of the locking / unlocking pivot line (17) of the locking tab (16) so as to delimit between it and the locking / unlocking pivot line (17); ) of the latching tongue (16), a third blank zone (41) that can be torn off during the opening of the case (2), this third line of weaker resistance (39) and this third tear-off zone (41). ) acting as an inviolability witness means (3). 18- blank (1) according to any one of claims 1 to 15, characterized in that the dimensions are chosen so that, once the blank (1) shaped to form the case (2), the two teeth (24). ) are superimposed or close to each other, so as to cooperate with the same locking slot (29), the blank (1) having a single cutout (30) U. 19- blank (1) according to any one of claims 1 to 18, in that it depends on claim 12, characterized by two cutouts (32) with or without removal of material at the two end portions of the pivot line locking / unlocking (17) of the locking tab (16), adapted to cooperate with the section (25) situated in the extension of the corresponding fold line of the lateral side wall (8a, 8b), with offset or lateral recess, the free edge (23) of each flap (19a, 19b) on which is the tooth (24) lock. 20- Blank (1) according to any one of claims 1 to 19, characterized in that the edge of the locking side panel extending in the second direction is a free edge from which extends no wall, flap , tongue, shutter or the like. 21- blank (1) according to any one of claims 1 to 20, characterized in that the two second sets (5) are similar. 22- blank (1) according to claim 21, characterized in that one and the same side wall acts as a base wall (6) for a first second set (5) and a locking wall (7) for a second second together (5). 23- blank (1) according to claim 21, characterized in that one and the same side wall acts as a base wall (6) or a locking wall (7) for a first and a second second set (5). 24- Case (2) in volume and open, consisting of a blank (1) according to any one of claims 1 to 23, the terminal band connecting (9) being secured to the opposite end side wall (8b), l one or both of the second end assembly (5) being in the open state. 25- assembly comprising a case (2) shaped and locked, comprising means (3) tamper evidence, and inside a content, the case (2) being constituted by a blank (1) according to l any one of claims 1 to 23, the terminal connecting strip (9) being secured to the opposite end side wall (8b) and the two second end assemblies (5) being in the closed state, the control means tamper evident (3) being constituted by the first, the second, the third zone (s) stripping (s) (34, 38, 41). 26- The assembly of claim 25, characterized in that: - the two flaps (19a, 19b) are located substantially in the plane of the opening defined by the side walls (6, 7, 8a, 8b), the section of the free edge of each flap located in the extension of the corresponding fold line of the lateral side wall (8a, 8b), without recess, coming against the inner face of the fold line of the base side wall (6) and of the end closing flap (14), the end closing flap (14) is arranged flat against the two flaps (19a, 19b) and closes the opening defined by the side walls (6, 7, 8a, 8b), - the locking tab (16) is arranged substantially perpendicular to the end closure flap (14) and against the inner face of the locking wall (7), the two or the cutout (s) ( 30) arranged on the locking tongue (16) forming the two or the slot (s) (29) suitable for locking the two locking teeth (24) of the two flaps (19a, 19b) are locked in the two or the slot (s) (29) locking.