KR20170057332A - Packing case with stacking lugs cutout and set of cutouts for creating such a case - Google Patents

Abstract

The present invention relates to a case made of cardboard comprising side walls (2, 2 ', 3, 3'; 45, 47; 57, 59) and a bottom (4; 46; 58) Wherein the at least one sidewall (3, 3 '; 45, 47) comprises at least one lamination lug (7) and the bottom (4; 46; 58) Respectively. Each lug 7 has a substantially rectangular trapezoidal shape including at least another side 16 which is straight at the bottom with one inclined side 15 and each corresponding recess 8 has a substantially rectangular trapezoidal shape, Is formed from a first rectangular section 21 cut from the first side 4 and an adjacent triangular second section 24 cut from the adjacent side walls 2, 2 ', 3, 3'; 45, 47; 57, 59, The bottom portion (4; 46; 58) and the adjacent side wall (2, 2 ', 3, 3'; 45, 47; 57, 59 ') at the end of the recessed triangular section (24) and the recessed rectangular section ) Forming a squarhed triangular edge at an angle to the bottom (4; 46; 58) to form a guide ramp for nesting or ejecting the lug (7) of the lower case .

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a packing case with a laminated lug cutout and a set of cutouts for producing such a case. ≪ Desc / Clms Page number 1 >

The present invention relates to a packing case made of a corrugated cardboard comprising side walls and a bottom, wherein at least one side wall has at least one lug for lamination and the bottom has a corresponding recess.

The invention also relates to a set of cutouts or cutouts for forming such a case.

The present invention can be laminated together on a pallet, and it is not exclusive but particularly important applications in the field of cases having laminated lugs and in particular requiring various handling operations during the depalletization phase are identified.

A case-laminating system of the tenon / mortise type is already known and the lug is made to cooperate with corresponding recesses of a vertical, rectangular and complementary rectangular shape to allow side slip Is designed.

Such systems are admittedly well locked together, but for the same reason, it is difficult to separate the case when attempting to lift it from one side of it. Such systems are also vulnerable and can not withstand repetitive handling tasks.

Packaging is also known (FR-A-2 311 717), the lid of the packaging is formed of flaps, and some of these flaps have a shape complementary to the shape of the notches formed in the bottom, , Mutual locking and thus lateral locking.

In addition to the fact that such an embodiment indicates a blank shape with a double set of flaps, such an embodiment is not suitable for low grammage boards and does not always permit perfect vertical stacking due to differences in case construction .

A case is also known in which a tab is attached to, for example, a side wall and is folded about a fold line between the wall and the flap to thereby adhere to the upper surface thereof.

While such a case allows for good centering and locks together firmly and very robustly, the design can generally prove to result in weakening of the wall and locking together insufficiently for strikes with excessive lateral stress .

The present invention seeks to overcome these shortcomings and is intended to solve such disadvantages and in particular to allow the lugs of the case to be easily released and guided particularly during unstacking from one side of the stack and without risk of tearing the sides of the case gripped by the operator Cutout and cutout set that satisfies the requirements of the actual experience better than previously known in that it presents the solution to be performed.

Thus, the present invention particularly facilitates unbonding of low-weight cardboard trays while maintaining excellent lateral locking and retention of the cases relative to each other during palletizing.

It also allows a simple and inexpensive configuration of the case, and is not limited to a case with a lead, but rather is particularly advantageous for a tray.

Therefore, according to the present invention, in the packaging without the risk of the packaging it is as stacked on top of each other damage to packaging and at the same time using a light basis weight (less than 150 g / m ²⁾ to avoid any slipping of the packaging when a palettized that, It would be possible to allow good release and unlocking with respect to each other.

The construction of the case also permits optimized transfer of the weight of the weight of the upper case to the lower case, allowing for an excellent centering of the walls vertically aligned with one another.

To this end, the invention relates in particular to a packing case made of corrugated cardboard comprising side walls and a bottom, wherein at least one side wall has at least one lug for lamination and the bottom has a corresponding recess, Each lug is of a substantially rectangular trapezoidal shape comprising one oblique side and at least another straight side at a bottom portion, each corresponding recess being defined by a first rectangular rectangular section recessed within the bottom of the case, And a junction zone in which the bottom and the adjacent side wall meet at an end of the recessed triangular zone and the recessed rectangular zone are angled with respect to the bottom to form a squashed triangular edge A guide lamp for mutually locking with the lug of the lower case or releasing the lug is formed , It offers a case characterized in that.

An adjacent triangular zone is a recessed zone adjacent to a recessed rectangular first zone and within its lateral continuation (on an adjacent wall thereto).

In some advantageous embodiments, one and / or the other of the following arrangements is additionally and / or additionally used:

- a recessed rectangular first section (when the case is constructed) which is capable of abutting against the straight sides of the lug of the upper case (at least at the bottom portion), which is facing the straight sides of the lug and perpendicular to said side And a second side bounded within the contiguous side wall, one side of the recessed triangular area being angled with respect to the bottom and capable of forming a squared triangular edge, wherein the squared triangular edge It is designed to abut the inclined side of the lug of the lower case. What the angled side with respect to the bottom means, in particular, the side that is inscribed in the plane at an angle to the plane of the bottom;

The case includes a bottom and at least four sidewalls, two opposing walls of the sidewall being connected at one side to the bottom by a first fold line and an upper edge at the other side, the upper edge comprising at least one of the lugs The lower edge of the bottom and the lower edge of the adjacent sidewall have at least one of the corresponding recesses that are vertically aligned with the lug and cooperating with the lug, each lug being aligned and aligned with the upper edge of the corresponding side wall, / RTI > and / or < RTI ID = 0.0 > coincident, < / RTI > a long base having a determined first length, a first side forming an angle determined relative to the edge and directed toward the interior of the lug to form the oblique side, An opposing second side having a first portion, the second side extending perpendicularly to and adjacent to a corresponding upper edge, Each of the rectangular first sections recessed in the bottom of the case having a second base portion having a second base portion and a second base portion having a first base portion and a second base portion, A first portion of a determined third length having one side coinciding with (or substantially coinciding with) one fold line, and a second portion within an extension of the first rectangular region, the second portion being vertically aligned with the triangular region, The two adjacent portions of the triangular section and the lateral outer edge of the triangular section are squashed to form the squared triangular edge;

The width of the recessed rectangular first zone is comprised between 0.7 cm and 1.2 cm;

- the length of the recessed rectangular first zone is between 2 cm and 5 cm;

The inclination of the inclined side of the lug is comprised between 10 ° and 45 °, for example 30 °;

The case is formed of a tray comprising a central panel board having lateral flaps, at least two opposing lateral flaps having lugs;

- the tray contains the rim cut lugs;

The case is formed from a cutout or blank comprising a series of at least four main panels, terminated with a glue tab, the main panels being joined together by a first fold line, The panel forms a bottom portion and a cover of the case and the other two main panels form two first opposing side walls, the series of main panels having a first set of flaps on one side and a second set of flaps on the other side The sets forming two other side walls adjacent the first opposing sidewall, the recess and the lug being formed in the panel at a level of the first fold line and / or the outer edge of the main panel without a flap;

The case is formed from a cutout comprising a series of at least four main panels terminated with glue taps, the main panels being joined together by a first fold line, forming a side wall of the case, Is connected by a second fold line, on one side, to a first flap set which forms the bottom of the case and on the other side to a second flap set which forms a cover, said recess and said lug being of a level of a second fold line In the flap;

The case is formed from a first cutout capable of forming two cutouts of corrugated cardboard sheet material, i.e. an open box for the bottom of the case, and a second cutout capable of forming a cover of the case, One cutout includes a lug and / or recess, and the second cutout includes a corresponding lug or recess.

The present invention also proposes a cutout or cutout set for forming a case as described above.

The present invention also relates to a cutout or cutout set for forming a corrugated cardboard case comprising a lateral panel board and a main panel board forming a bottom, wherein the lateral panel board comprises at least one lug for nesting And wherein the main panel board has a corresponding recess, wherein each lug is substantially rectangular trapezoidal in shape, including one oblique side and at least partially straight side, Each corresponding recess is formed by a first rectangular rectangular section recessed in the main panel board and a second adjacent rectangular triangular section recessed in the adjacent lateral panel board and the recessed triangular section and the recessed rectangular section The junction area at the end where the bottom and the adjacent side wall meet can be squared at an angle to the bottom when the case is constructed Proposes the, cut-out or cut-out set, characterized in that for configuring the light guide for guiding the release of the interlocking lug or the lugs and the bottom of the case, to form a triangular edge.

Advantageously, the lateral panel board is connected to the central panel board by two opposing lateral panel boards by a first fold line on one side, the panel board comprises an upper edge on the other side, and the upper edge comprises at least one Wherein the lower surface of the main panel board and the lower surface of the adjacent lateral panel board have at least one corresponding recess that is vertically aligned with the lug and designed to cooperate with the lug, A first side defining an inclined side directed toward the interior of the lug and forming an angle determined relative to the edge, a second side defining an inclined side towards the interior of the lug, An opposing second side having an upper first portion to be chamfered, the second opposing second side being extended by a lower second portion perpendicular to and adjacent to the corresponding upper edge And a short base portion having a determined second length connecting the apexes of the two sides and defining a second side which is straight at the bottom portion of the case, Zone 1 has a first portion of a determined third length having a side coinciding with the first fold line and a second portion within the extension of the rectangular first zone that is vertically aligned with the triangular zone, The area adjacent to the outer edge of the triangular area is designed to be squashed when the case is constructed.

Advantageously, the cutout or cutout set comprises at least one cutout made of corrugated sheet material, that is, a first cutout capable of forming an open box, said first cutout comprising lugs and / or And a recess.

Advantageously, the set also includes a second cutout, wherein the second cutout can form a cover and includes a recess and / or a lug corresponding to a lug or recess of the first cutout.

BRIEF DESCRIPTION OF THE DRAWINGS The invention will be better understood by reading the following description of some embodiments which are provided by way of non-limiting example only.

It refers to the attached drawings.

1 is a perspective view of a tray illustrating a first embodiment of the present invention.
2 is a plan view of a cutout corresponding to the tray of FIG.
Figure 2a is an enlarged view of the lug of Figure 2 and the corresponding recess.
Figures 3a and 3b are exploded perspective views from front and rear of a locking lug / mortise (recess) locking according to an embodiment more specifically described herein.
4A-4D are plan views of a cutout in accordance with an embodiment of the present invention in the form of a tray.
Figure 4e shows a top view of a cutout according to another embodiment of the present invention for a tray with a rim.
Figures 5a and 5b show a top view of two embodiments of cutouts forming a series of panels with flaps according to the invention in which the recesses and lugs are in the panel.
Figures 6a and 6b show a top view of two embodiments of a cutout according to the invention in which the recess and the lug are in the flap.
7A to 7C are plan views of a cutout for a tray with a cover according to another embodiment of the present invention.
Figures 8A-8C illustrate steps involved in disengaging two interlocked cases according to the present invention.

Fig. 1 shows a corrugated cardboard tray 1 according to a first embodiment of the present invention.

The corrugated tray comprises four rectangular sidewalls, two lateral walls 2, 2 'and two longitudinal walls 3, 3', connected to and opposed to the rectangular bottom 4 facing each other in pairs.

The longitudinal walls 3 and 3 'each include a lower edge 5 connected to the bottom by a first fold line and an upper edge 6 provided with two lugs 7 for lamination.

The lower edge (5) has a corresponding recess (8) located in line with the lug.

Throughout the remainder of this description, the same reference numerals will be used to denote the same or similar elements.

2 is a plan view of a cutout 9 that can be used to obtain the tray 1 of FIG.

This cutout comprises a central panel board 4 which forms a bottom which, via the first fold line 11 on both sides, forms two rectangular lateral panel boards 3, 3 ') - which are symmetrical about the central longitudinal axis 10.

Each of the lateral panel boards 3, 3 'is also connected to a rectangular or square flap 12 by a second fold line 13 at each of its ends.

The central panel board 4 is also connected to the two panel boards 2, 2 'which form the transverse wall, in a manner known per se by the third fold line 14 on the other two sides thereof.

The upper edge 6 has a substantially rectangular trapezoidal lug 7 and the lug has an outer side of the lug 7, Inclined first side 15 forming an angle alpha of, for example, 30 degrees, which is oriented towards the upper edge 6, i.e. between 10 and 45 degrees relative to the upper edge 6, The sides have a determined first length d comprised, for example, between 1 cm and 3 cm.

On the opposite side, the lug 7 comprises a second side 16 which is essentially perpendicular to the corresponding upper edge, at least over a portion 17 (at the bottom portion) adjacent the corresponding upper edge 6.

More specifically, the second side 16 connects the lug long base 18 and the trapezoidal external short base 19, which are aligned with the edge 6. The second side includes a chamfered or cut edge 20 in the upper portion to facilitate mutual locking at the outward extension of the portion 17.

The length of the long base 18 is L (for example 5 cm) and the length of the short base 19 is l (including the chamfered portion) (for example 3 cm) The height of the trapezoid is h (for example, 1 cm).

The recesses 8 corresponding to the lugs are longitudinally elongated, that is to say parallel to the first fold line 11, a recessed rectangular first section 21 ).

The first zone has a length l 'comprised, for example, between 1 cm and 7 cm, for example between 2 cm and 5 cm, for example between 0.4 cm and 1.5 cm, for example between 0.7 cm and 1.2 cm With a width x, where l 'is equal to or substantially equal to l (slightly less than l, e.g., 0.1 cm less to facilitate mutual locking).

Thus, the recessed rectangular first section 21 has two longitudinal side portions 22, 23, an outer first side 22 of length l, and a first fold line 22 on a first portion of its length l, And a second side portion 23 coinciding with the first side portion 11.

The recess 8 also includes a recessed triangular second zone 24 adjacent the end portion 25 of the first zone 21.

In other words, the recess 8 traverses the first fold line 11, where the rectangular section 21 is on one side on the bottom 4 and the triangular section 24 is on the other side, (3 '). The triangle constituting the recessed second zone 24 is a right triangle and continues up to the vertex A in the panel board 3.

One side 26 of a right angle of the triangle is aligned with one lateral side 27 of the rectangular first section (starting from vertex A), wherein the other (imaginary) And is on the extension of the coplanar line 11.

The hypotenuse 28 of the recessed triangular second zone 24 is located midway between the apex A and the second longitudinal side 23 of the rectangular zone 21 (located on the first fold line) By connecting the ends B, the first and second sections of the recess form only one single hole transverse to the line 11.

According to the present invention, to form a squared edge, a triangular junction area 29 is provided in which the bottom and sidewalls meet and are made of corrugated cardboard.

The triangular junction area is vertically aligned with an apex D formed on the inclined side of the trapezoid of the lug 7 or the end of the first side 15 located on the edge 6 and corresponding to the recess 8, Are bounded by the two fourth fold lines 30, 31 starting from the point C located on the fold line 11. The junction area 29 is thus defined by the edges A and E of the sides of the recess 8 formed by the recessed first and second zones facing each other across the recess zone 8, (C).

It forms a triangular squared edge fixed at one side to the bottom and at the other side to the wall at an angle to the bottom so that the recessed area (as will be described in more detail below with reference to Figures 8a to 8c) 8 to lock or release the lugs of the upper tray.

3a and 3b), the lugs 7 can be inserted into corresponding recesses 8 of a case or tray that is stacked on a first tray, The triangles of the tray 29 adopt an oblique planar orientation with respect to the bottom 4 and against the wall 3 'to form a squared edge (during construction of the tray).

Thus, the squared edge forms a tetrahedron whose vertex (C) is on the first fold line and whose bottom surface (AE) is angled and is extended by the recessed first rectangular region.

In other words, the inner surface 32 of the junction area 29 (squared edge) of the tetrahedron thus forms an inclined plane, and a guide for mutual locking or ejection of the lugs 7 of the tray, Construct a lamp.

More specifically, during insertion, the inclined first side 15 of the lug 7 abuts against the face 32 and is guided vertically by the face.

The lug 7 is also guided by the side of the rectangular section 21 which is rubbed until the second side 16 of the lug 7 is reliably abutted against the first transverse side of the recess 8. [ do.

The lug 7 is then locked by the upper edge of the recess and by the bottom 4 of the stacked tray.

Thus, the tray 1 is accurately held in place when it is moved.

Figures 4A-C illustrate various embodiments of cutouts for a case or tray according to the present invention.

In the embodiment shown in Figures 4A-4D, each tray has four lugs 7 and four recesses 11 distributed in pairs on the first fold line 11 and the upper edge 6 of the tray, (8).

4A, the cutout has a center of symmetry 33, so that the lugs 7 and the recesses 8 are formed symmetrically about the center 33. As shown in Fig.

In Figure 4b there is longitudinal symmetry about the longitudinal axis 34 of the cutout and in Figure 4c there is lateral symmetry about the transverse axis 35. [

4A-4C, the set formed by the four lug / recess pairs is vertically centered so that for each pair, the second fold line 14 closest to the pair and the same Leaving an average distance y.

Figure 4d shows an arrangement 36 for simultaneously obtaining two identical cutouts with staggered configurations to form two trays to limit the offcut of the cardboard.

Here, the pair of lugs 7 / recesses 8 are centered or not symmetrical, so that the distance a between the first pair 37 and the second fold line 14 is greater than the distance between the corresponding fold line of the other side and the second pair B "

Since the first and second cutouts are completely arranged with respect to each other, this allows the paperboard to be economized.

Figure 4e shows another embodiment of a cutout 39 according to the present invention for constructing a tray with a rim. The cut-out here is one in which the transverse walls 2, 2 'are substantially T-shaped, the outer edge of the T-shaped horizontal bar is of T-shape coinciding with the second fold line 14, and, on the other hand, Except that on both sides of the longitudinal panel boards 3 and 3 ', the longitudinal panel board further comprises a rectangular flap 40 connected by a fifth fold line 41 parallel to the first fold line And is generally similar to the cut-out in Fig. 4A.

Each of the fifth fold lines includes two discontinuities 42 forming a lug (excepting along its long base) by cutting around its periphery.

The rectangular flaps 40 form rims for the configured trays and include a glue flap 43 articulately connected to each of their longitudinal ends in a manner known per se.

Figures 5A-7C illustrate an embodiment according to the present invention for a cardboard case comprising a bottom and a cover.

Figures 5A and 5B illustrate cutouts for forming a case comprising a series of four main panels 44, 45, 46, 47 terminated by a fold tab 48. [

The main panel and the glue tab are connected to each other by the first folding lines 49, 50, 51 and 52.

Two of the non-adjacent main panels (44, 46 in FIG. 5A or 45 and 47 in FIG. 5B) form the bottom of the case and the cover, where the other two panels, when the case is constructed, Thereby forming side walls.

The series of panels has a first flap set 53 on one side and a second flap set 54 on the other side, which are intended to form part of the sidewall.

5A, the recess 8 is formed on one of the first fold lines 50 of one of the main panels 45 forming the bottom portion 4. The lugs 7 themselves are formed on the first fold line 51 opposite the adjacent panel 46 and in the corresponding adjacent panel 47 facing each other.

5b, there is a first pair of lugs 7, on the one hand, on the upper edge 6 of the panel 44, and on the other hand on the first fold lines 49 to 52, On the first fold line 49 there is a corresponding pair of recesses 8 followed by another pair of recesses 8 on the fold line 50 behind and finally the panel 46 On the next fold line 51, there is a second pair of corresponding lugs 7. A recess 55 in the glue tab 48 is also provided for receiving the lug 7 of the panel 44.

In summary, the recesses 8 and the lugs 7 are formed in the panel at the level of the first fold line and / or the outer edge 6 of the continuous flap.

Of the first pair of lugs 7, the lugs 7 have, for example, a height greater than the height of the second pair of lugs, or they lie on the upper edge and a rectangular base therebetween. Thus, the thickness of the cardboard through which they pass is compensated, which provides the same holding ability to the lugs 7 on each side of the case.

6A and 6B, the cutout includes a series of four rectangular panels 56, 57, 58, 59 with glue tabs 60, which are joined at the sides of the panels 63, 64 which are connected to it by two sets of flaps 61, 62. Here, the lugs 7 and recesses 8 are located on the joining lines 63, 64, respectively, where they meet the panel, and the bottom 4 and the cover are formed in and by the flaps at the level of the joining line .

In Figure 6a, lugs 7 and recesses 8 are formed on each side of the same panel 58.

In Figure 6b, two non-adjacent panels 56, 58 include lugs 7 and recesses 8.

Figures 7a-7c illustrate three sets 65, 66, 67 of two cutouts 70, 71, 72, 73 and 74, 75 for constructing a case according to another embodiment of the present invention. do.

The case comprises a first cutout (70, 72, 74) capable of forming two cutouts of cardboard sheet material, namely an open box for the bottom part (4) of the case, and a second cutout (71, 73, 75) capable of forming the second cutout (71, 73, 75).

7A and 7B, the first cutout 70, 72 comprises a lug 7 or recess 8 and the second cutout comprises a corresponding recess 8 on the corresponding fold line ) Or lugs (7).

The first cutout forming the bottom portion 4 is similar to that depicted in FIG. 2, but differs in that it only includes lugs or recesses 8.

The second cutout forming the cover itself is attached to the first flap 77 by the first fold line 78 in the longitudinal direction and by the second fold line 80 by the second fold line 80 in the lateral direction As shown in Fig.

7A, the first cutout 70 includes two lugs 7 on each of the second fold lines, which are formed in the central panel board 4 and on both sides of its second fold line 82 do. The cover includes four recesses distributed in pairs on each first fold line 83 of the second cutout.

7B, the position of the lugs and recesses is reversed, and the lugs are formed in the main panel 76 of the second cutout.

In FIG. 7C, the first cutout is similar to that depicted in FIG.

The second cutout itself includes a rectangular opening 84 of length and width suitable for allowing the lug 7 to penetrate, in a position perpendicular to the lug 7 and located within the main panel 76 do.

Now, the stacking function according to the present invention will be described with reference to FIGS. 8A to 8C more specifically.

In FIG. 8A, a first tray 85 is overlaid and stacked on a second tray 86. Thus, the lug 7 of the second tray 86 is locked in the corresponding recess 8 of the first tray 85, so that the recess acts like a mortise.

8B, a normal force (arrow 87) is applied to one of the ends 88 of the first tray by, for example, an operator.

Thus, the upper first tray 85 is lifted as a result of the applied force, freeing the lug 7 from the lower second tray 86 at that side.

On the other side, the inclined surface of the first side 15 of the lug 7 is pressed and slightly pivots on the joint area and / or on the second side of the corresponding recess 8.

The operator then applies a longitudinal bevel force 89 to the tray by pulling the first tray toward it (see FIG. 8C).

The lug 7 slides in the longitudinal direction along the rectangular recess 8 on the other side and the surface of the squared edge forms a guide ram while simultaneously applying a force to the lug.

The lateral force then tends to move the lug laterally when the lug is no longer held vertically by the side wall of the upper first tray.

The lug is then ejected from the tray at the other side of the side wall of the upper tray as the lug slides until the straight edge of the lug moves past the first portion of the corresponding rectangular region of the recess.

The chamfering of the straight edge facilitates this release by preventing the straight edge from catching on the second side of the recess of the upper tray. Thus, the palletizing can be considerably easier.

Needless to say, and as is apparent from the foregoing, the invention is not limited to more specifically described embodiments. Rather, it includes all alternative forms and, in particular, the form in which the lug is placed on a wall other than the wall forming the outer wall of the case, for example on a reinforced inner panel board.

Claims (17)

A packing case made of corrugated cardboard comprising side walls (2, 2 ', 3, 3'; 45, 47; 57, 59) and a bottom (4; 46; 58), wherein at least one side wall (3; 45 and 47 have at least one lug 7 for lamination and the bottoms 4 and 46 and 58 have corresponding recesses 8,
Each lug 7 has a substantially rectangular trapezoidal shape including one oblique side 15 and at least another side 16 straight at the bottom portion and each corresponding recess 8 has a bottom 4, a rectangular first zone 21 recessed in the first side wall 4 and a second adjacent zone 24 recessed in the adjacent side walls 2, 2 ', 3, 3'; 45, 47; 46, 58 and adjacent sidewalls 2, 2 ', 3, 3'; 45, 47; 57, 57 at the ends of the recessed triangular section 24 and the recessed rectangular section 21, 59 to form a squarhed triangular edge at an angle with respect to the bottom 4, 46, 58 so as to interlock with the lug 7 of the lower case, Wherein the lamp comprises a lamp. 2. A device according to claim 1, wherein the recessed rectangular first section (21) abuts the lug (7) of the upper box, at least at the bottom portion, towards the straight side (17) of the lug (7) One side of the recessed triangular section 24 which may form an angled and squared triangular edge with respect to the bottom section 4 (46; 58) And a second side (23) that delimits within the first case (2 ', 3', 3 ', 4', 5 ' Is designed to abut the side (15). 3. A device according to claim 2, characterized in that the case comprises a bottom (4; 46; 58) and at least four side walls (2, 2 ', 3, 3'; 45, 47; 57, 59) Wherein the upper edge (6) is connected to the bottom (4; 46; 58) by a first fold line (11; 49, 50, 51, 52) (7), the lower edge of the bottom (4; 46; 58) and the lower edge of the adjacent side wall (2, 2 ', 3, 3'; 45, 47; 57, 59) comprise at least one of the lugs , Each said lug (7) having at least one of said corresponding side walls (2, 2 ', 3, 3'; 45, Determined as a long base 18 and a first side 15 of the determined first length L aligned and / or coincident with the top edge 6 of the edge 16 A first side which forms an angle alpha and which is directed towards the interior of the lug 7 to form the inclined side 15, (16), which is perpendicular to and adjacent to a corresponding upper edge (16) and extends by a lower second portion (17) adjacent to the upper edge (16) Has a short base portion of a determined second length (l) connecting the apexes of the two sides (15, 16), the opposed second side forming the other side (16) Each rectangular first section 21 recessed in the bottom portion 4 of the first fold line 4 is formed with a determined third length 21 having one side coinciding with the first fold line 11, 49, 50, 51, 1 part 23 and a second part 25 in the extension of the rectangular first section 21 and perpendicular to the triangular section 22 and having a second part and a side of the triangular section 22 And the area adjacent the direction outer edge is squashed to form the squared triangular edge. The case according to claim 3, characterized in that the width (x ') of the recessed rectangular first zone is comprised between 0.7 cm and 1.2 cm. 5. A case according to any one of claims 1 to 4, characterized in that the length of the recessed rectangular first zone (21) is comprised between 2 cm and 5 cm. 6. A case as claimed in any one of the preceding claims, characterized in that the inclination (alpha) of the inclined side (15) of the lug (7) is comprised between 10 and 45 degrees. 7. A device according to any one of the preceding claims, characterized in that the case comprises a central panel board (4; 46; 58; 59; 47; 57; 59) having lateral flaps ), Characterized in that at least two opposite lateral flaps (10) are provided with lugs (7). 8. A case according to claim 7, characterized in that the tray comprises a rim (40) on which the lugs (7) are cut. 7. A method according to any one of claims 1 to 6, wherein the case is formed from a cutout comprising a series of at least four main panels (44, 45, 46, 47) terminated with glue tabs (48) The two main panels 44 and 46 of the main panel form a bottom portion and a cover of the case, and the other two main panels 44 and 46 are connected to each other by the first fold lines 49, 50, 51 and 52, (45, 47) form two first facing sidewalls, said series of main panels having a first flap set (53) at one side and a second flap set (54) at the other side, Wherein the recesses (8) and the lugs (7) form two other sidewalls adjacent one side wall, the panels (44, 45) at the level of the first fold line and / , 46, 47). 7. A device according to any one of claims 1 to 6, wherein the case is formed from a cutout comprising a series of at least four main panels (56, 57, 58, 59) terminated with glue tabs (60) The main panels are joined together by a first fold line to form a side wall of the case, and the series of main panels are folded by the second fold lines (63, 64), at one side, Is connected to a second flap set (62) forming a cover on the other side and to the flap set (61), said recesses (8) and said lugs (7) being located at the level of the second fold lines Wherein the flaps are formed in the flaps. 7. A method according to any one of claims 1 to 6, wherein the case comprises two cutouts (70, 71; 72, 73; 74, 75) of cardboard sheet material, (71, 73, 75) capable of forming a cover of the case, the first cutout being formed by lugs (7, And / or a recess (8), said second cutout comprising a corresponding lug (7) or recess (8). A cutout or cutout set (9; 39; 70; 71; 72, 73; 74, 75) for forming a corrugated cardboard case comprising a main panelboard forming a lateral panel board and a bottom, Wherein the main panel board has at least one lug (7) for nesting and the main panel board has a corresponding recess (8), wherein the main panel board (2, 2 ', 3' In a cut-out or cut-out set,
Each lug 7 has a substantially rectangular trapezoidal shape including one oblique side 15 and at least partially straight another side 16 and each corresponding recess 8 has a substantially rectangular cross- A recessed rectangular first section (21) and an adjacent triangular second section (24) recessed in an adjacent lateral panel board, wherein the recessed triangular section (24) and the recessed rectangular section (21) The junction area 29 where the bottom and the adjacent side wall meet form a triangular edge that can be squashed at an angle relative to the bottom when the case is constructed so that the locking or interlocking with the lug 7 of the lower case A cutout or cutout set characterized by being able to constitute a guide ramp for guiding the release of the lugs. 13. The panel board of claim 12, wherein the lateral panel board is connected to the central panel board by two opposed lateral panel boards by a first fold line (11; 49, 50, 51, 52) Wherein the lower edge of the main panel board and the lower surface of the adjacent lateral panel board are vertically aligned with the lug (7) Each of the lugs 7 having at least one corresponding recess 8 that is designed to cooperate with the lug, each lug 7 having a longitudinal length L of a determined first length L, (7) which forms an angle (?) Relative to said edge (6) and which is directed towards the interior of the lug (7) to form said inclined side, said first side (18) (16) having an upper first portion (20) chamfered towards the interior of the corresponding upper portion An opposing second side which is perpendicular to and adjacent to the edge 6 and which is extended by the lower second portion 17 to form the straight another side 17, Each rectangular first section 21 recessed in the bottom of the case has a first base line 11 of a first fold line 11, 49, 50, 51, 52 and a short base 19 of a determined second length l, And a second portion that is vertically aligned with the triangular section (24) within an extension of the rectangular first section (21), wherein the first portion (23) has a determined third length Characterized in that the zones adjacent to the two edges and the outer edges of the triangular zones are designed to be squashed when the case is constructed. 14. The apparatus of claim 12 or 13, wherein the cutout is constructed from a blank comprising a series of at least four main panels (56, 57, 58, 59) terminated with glue tabs (60) Are joined together by a first folding line to form a side wall of the case, and the series of main panels are folded by a second fold line (63, 64) on one side to form a first flap set (61 And on the other side to a second flap set (62) forming a cover, said recess and said lug being formed in said flap at a level of a second fold line. 14. The apparatus of claim 13, wherein the cutout or cutout set is constructed from a blank comprising a series of at least four main panels (44, 45, 46, 47) terminated with glue tabs (48) Are connected to each other by a first folding line (49, 50, 51, 52) to form a side wall of the case, and the series of main panels has, on one side, a first flap set (53) Wherein the recesses (8) and the lugs (7) are provided with a flap-less outer edge of a series of main panels and / or at the level of the first fold line Wherein the cutout or cutout set is formed within the cutout or cutout set. 14. The method of claim 12 or 13, wherein the cutout or cutout set comprises at least one cutout (70; 72; 74) made of corrugated sheet material, that is, a first cutout Characterized in that the first cutout comprises a lug (7) and / or a recess (8). 17. The method of claim 16, wherein the cutout set includes a second cutout (71; 73; 75), the second cutout can form a cover, and the lug (7) or recess Characterized in that it comprises a recess (7) and / or a lug (8) corresponding to the recess (8).

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