ES2967258T3 - folding box - Google Patents

Abstract

Folding box for storing items for quick consumption, comprising: - a lower front wall part (2) with a lower locking element (21), - a bottom wall (4) connected to the lower front wall part through a lower front fold line (3), - through a lower part of the lower side wall (6.1, 6.2) connected to the lower wall by fold lines, - a rear wall (8) connected to the wall bottom through a lower rear fold line, - an upper wall (10) connected to the rear wall through an upper rear fold line, - through upper side fold lines, parts of the upper side wall ( 12.1, 12.2) connected to the upper wall, - rear folding flaps (13.1, 13.2) connected to the rear wall through side fold lines, - lower rear delta flaps (15.1, 15.2), - upper rear delta flaps ( 17.1, 17.2), - an upper part of the front wall with an upper locking element (26). (Automatic translation with Google Translate, without legal value)

Description

DESCRIPTION

folding box

The invention relates to a folding box manufactured from a cut-out in a single piece of cardboard or other flat material, in particular for housing fast-moving consumer items.

The folding box according to the invention is especially suitable for housing hamburgers, chicken nuggets, French fries or popcorn.

Document DE9203448U1 describes a two-tray container made from a one-piece cutout of a foldable flat material, comprising a base tray with a base wall and base side walls and a lid tray with a wall of lid and lid side walls, wherein the base tray and the lid tray are hingedly joined together via a fold line between a base side wall and a lid side wall. The base tray and the lid tray can be locked together by locking means which are formed by lateral base locking projections on the base side wall opposite the fold line and by lateral lid locking projections on the base side wall opposite the fold line. the adjoining edges of two lid side walls. The adjoining base side walls and the adjoining lid side walls are connected to each other via connecting flaps which are respectively attached to one of the adjoining side walls via a fold line and glued to the other of the side walls. contiguous. The base side walls are inclined slightly outward with respect to the base wall and the lid side walls are inclined slightly outward with respect to the lid wall, so that the base tray and the lid tray are widened respectively slightly towards its opening. In the folding box factory, the cardboard for the manufacture of the two-tray container is printed, the cardboard cutouts are die-cut and slotted, the base side walls and the lid side walls are raised and glued to the flaps of union, and the two-tray containers prepared in this way are stacked one inside the other. In the form of stacks they arrive at fast food restaurants, food stalls, mobile food stalls and other fast food outlets. After filling with burgers or other fast-moving items, the lid tray and base tray lock together by simply folding them towards each other and the filled container is delivered. One disadvantage is the large space that stacked two-tray containers take up. This is due to the air spaces present between the trays inserted into each other, without which it would be very difficult to remove the individual trays from the stack. However, in fast food outlets there is generally little storage space available.

Documents KR2014/0003403 U, US3,193,175A and FR1089436A describe folding boxes that have folding flaps respectively at both rear corners and at the four front corners. Lifting folding boxes is made difficult by the simultaneous folding of all the flaps.

Starting from this, the invention has the objective of providing a folding box, in particular for housing fast-moving objects, which requires less space during storage and which can be easily prepared at points of sale to dispense fast-moving objects.

The objective is achieved by a folding box with the features of claim 1. Advantageous embodiments of the folding box are indicated in the subordinate claims.

The folding box according to the invention, formed by a cutout in a single piece of cardboard or other foldable flat material, in particular for housing fast-moving consumer items, comprises:

• a lower front wall portion with a lower locking element,

• a base wall joined to the lower front wall portion through a lower front fold line,

• lower side wall parts joined to the base wall through lower side fold lines, • a rear wall joined to the base wall through a lower rear fold line,

• a lid wall joined to the rear wall through a rear top fold line,

• upper side wall parts attached to the lid wall via upper side fold lines, • rear folding flaps attached to the rear wall via side fold lines,

• lower rear delta flaps, attached to the rear edges of the lower side wall portions and to the lower edges of the rear folding flaps via lower rear side fold lines,

• rear upper delta flaps, attached to the rear edges of the upper side wall portions and to the upper edges of the folding flaps via rear upper side fold lines, • an upper front wall portion, attached to the rear upper side wall portion. lid through a front top folding line, with a top interlocking element,

• characterized because

• between the lower front wall part and the lower side wall parts, as well as between the upper front wall part and the upper side wall parts, no folding flaps or delta flaps are respectively present, and

• the folding box can be lifted by lifting the lower side wall parts, folding the folding flaps inward, lifting the rear wall, lifting the upper side wall parts, folding the lid wall in parallel orientation on the base wall, folding the lower front wall portion and the upper front wall portion towards each other and locking the lower and upper locking elements together.

The folding box according to the invention has, to join the lower side walls and the lid side walls, instead of the connecting flaps glued to the side walls, folding flaps and delta flaps (triangular flaps).

As a result, the folding box can be lifted without gluing. The raised folding box is held in the raised position by the inwardly folded folding flaps, the delta flaps and the interlocking locking elements. In this way, it is possible to store the flat cuttings stacked on top of each other. The space occupied by flat cuttings stacked flat on top of each other is significantly less than the space occupied by two-tray containers stacked inside each other, since no air spaces are required to easily remove the cuttings from the stack. Two-tray containers stacked on top of each other take up a multiple of the space occupied by flat cutouts stacked on top of each other. Therefore, the invention significantly reduces the space required to store the folding box and nevertheless achieves a foldable box that is easy to handle at points of sale until it is dispensed. Furthermore, the invention makes possible space-saving, stackable folding boxes that are parallelepiped in the raised state and can therefore be stored space-saving when filled. In the conventional two-tray container, this is not possible due to the outward inclination of the base side walls and the lid side walls. When lifting the folding box, the steps of the last point of the relationship in claim 1 can be carried out exactly in the order indicated or in a different order. It is also possible to carry out several of the indicated steps at the same time.

Between the lower front wall part and the lower side wall parts, as well as between the upper front wall part and the upper side wall parts, no folding flaps or delta flaps are respectively present. In this embodiment, the entire folding box is held in the raised position by the locking elements interlocking with each other, and the lower side wall portions and the upper side wall portions are secured in the raised position by the flaps. rear folding flaps and rear delta flaps.

According to another embodiment, the lower front fold line, the lower rear fold line, the upper rear fold line and the upper front fold line are arranged parallel to each other. In this way, a folding box can be realized with a flat base wall and a flat top wall, which is advantageous for stacking filled folding boxes on top of each other. In particular, the folding box can be configured entirely parallelepipedally.

According to another embodiment, the lower front fold line and the lower rear fold line are respectively curved inwards and the upper rear fold line and the upper front fold line are respectively curved inwards. In this way, a folding box is made possible, which in the flat state of the cut-out can be stored space-savingly and which in the raised state of the cut-out has a downwardly arched base wall and an upwardly arched lid wall. In this way, hamburgers and other fast-moving consumer items that have a bulging shape at the top and bottom can be packaged, saving material.

According to another embodiment, the lower side wall parts are higher than the upper side wall parts and the lower side wall parts are laterally overlapped above by the upper side wall parts at least in sections. In this way, lateral sealing of the raised folding box is achieved, which prevents impurities from entering through the sides. According to another embodiment, the lower side wall portions are as high as the rear wall. In this way, it is achieved that the lid wall of the raised folding box can rest on the upper edges of the lower side wall parts. This stabilizes the folding box in the raised position. This is advantageous when grasping and stacking filled folding boxes.

According to another embodiment, the lower side wall portions have rearward-facing lower bevels at the upper edge. The rearward-facing lower bevels promote lateral deviation of the rear upper delta flaps and/or the upper side wall parts towards the outer sides of the lower side wall parts during lifting, so that, in the raised state, the lower side wall portions are overlapped on the outside by the upper side wall portions. The rear-facing bottom bezels can be straight or curved.

According to another embodiment, the lower side wall parts have on the upper edge between the ends lower bevels facing rearwards and/or forwards, and the upper side wall parts have on the lower edge between the ends upper bevels facing towards forward and/or backward. When lifting the folding box, the lower side wall portions and the upper side wall sections can interlock and abut each other by the mutual engagement of the lower bevels and the upper bevels. The interlocking bevels of the lower and upper side wall sections are oriented in different directions, that is, one of the two bevels faces rear and the other faces forward. According to another embodiment, the lower bevels are oriented in different directions and the upper bevels are also aligned in different directions. According to another embodiment, the lower bevels are formed adjacent to a lower corner of the upper edge of the lower side wall portion and the upper bevels are formed adjacent to a lower corner of the lower edge of the lower side wall portion. The upper side wall parts and the lower side wall parts can be interlocked with each other until the lower corners and the upper corners are in contact with each other, so that the lower corners and the upper corners define a stable final position for interlocking the lower side wall parts and the upper side wall parts with each other. According to another embodiment, the lower bevels and the upper bevels are rectilinear or curved.

According to another embodiment, the upper front wall portion is higher than the lower front wall portion, and in the raised state, the lower front wall portion is in contact with the outer side of the upper front wall portion. In this way, locking the folding box can be facilitated. According to another embodiment, the upper front wall part is as high as the rear wall, so that, in the raised state, the folding box is stabilized by the support of the lower edge of the upper front wall part on the wall. base.

According to another embodiment, the lower front wall portion is higher than the upper front wall portion, and in the raised state of the folding box, the upper front wall portion is in contact with the lower front wall portion. In this way, better sealing of the folding box against the entry of impurities from above is achieved. According to another embodiment, the lower front wall part is as high as the rear wall, so that, in the raised folding box, the lid wall can rest on the upper edge of the lower front wall part. This stabilizes the raised folding box.

According to another embodiment, the lower locking elements and the upper locking elements have a pivotable locking tongue in the lower front wall part and a locking groove, formed to receive the locking tongue, in the front wall part superior. According to another embodiment, the lower locking elements and the upper locking elements have a pivotable locking tongue in the upper front wall part and a locking groove, formed to receive the locking tongue, in the front wall part lower. In this way, a particularly easy and effective interlocking of the front wall parts with each other is achieved.

According to another embodiment, the lower front wall part is connected at the upper edge, via a central folding line, to a locking tab which is connected at an interruption of the central folding line to a locking tab. punched from the lower front wall part, which can be inserted into the locking groove of the upper front wall part by pivoting the locking flap. According to another embodiment, the upper front wall part is connected at the lower edge, via a central folding line, to a locking flap which, at an interruption of the central folding line, is connected to a locking tab. punched from the upper front wall part, which can be inserted into the locking groove of the lower front wall part by pivoting the locking flap. These two variants make possible a particularly simple locking and a particularly simple opening of the folding box.

In this application, the terms "upper" and "lower", "horizontal" and "vertical" and terms derived from them, such as "above" and "below" and "above" and "below", are refer to an orientation of the folding box completely raised with the base wall on a horizontal surface and the lid wall above the base wall The indications "front" and "rear" and "side" are chosen from the point. view of an observer in an upright posture looking at the front wall portions of the fully raised folding box with the base wall resting on a horizontal surface.

Below, the invention is explained in more detail with the help of the accompanying drawings of embodiments. In the drawings, they show:

FIG. 1 shows a plan view of a folding box with rectilinear folding lines in a top plan view;

Figure 2 the same cutout in a first folding step obliquely from above and from the side;

Figure 3 shows the same cut-out during lifting of the lower side wall parts and the rear wall in a perspective view obliquely from above and from the side;

Figure 4 the same cutout inserted in a lifting aid with the rear wall raised, in a perspective view obliquely from above and from the side;

Figure 5 shows the same cut-out during the lifting of the upper side wall parts and the closing of the lid wall in a perspective view obliquely from above and from the side;

FIG. 6 shows the same cut-out with the lid wall almost completely closed in a perspective view obliquely from above and from the side;

Figure 7 the folding box fully raised and locked in a perspective view obliquely from above and from the side;

FIG. 8 shows the fully raised and locked folding box, removed from the lifting aid, in a perspective view obliquely from above and from the side;

FIG. 9 is a plan view of a folding box with curved folding lines and arched edges of the side wall parts in top plan view;

FIG. 10 shows the same cut-out during the folding of the folding flaps inwards and the lifting of the rear wall and the folding closure of the lid wall, in a perspective view obliquely from above and from the side;

Figure 11 shows the same cut-out with the lid wall closed before locking the locking elements, in a perspective view obliquely from above and from the side;

Figure 12 shows the same cut-out after locking the locking elements in a perspective view obliquely from above and from the side;

Figure 13 shows the same cut-out during lifting of the lower side wall parts in a perspective view obliquely from above and from the side;

Figure 14 the same cutout completely raised in a perspective view obliquely from above and from the side.

According to Figure 1, a cutout 1.1 of a folding box has a lower front wall part 2, which is connected to a base wall 4 through a lower front folding line 3. The base wall 4 is connected to parts of lower side wall folding lines 6.1, 6.2 through the lower side fold lines 5.1, 5.2. Furthermore, the base wall 4 is attached to a rear wall 8 through a lower rear fold line 7. Through an upper rear fold line 9, the rear wall 8 is attached to a lid wall 10. A Through the upper side fold lines 11.1, 11.2, the lid wall 10 is attached to upper side wall parts 12.1, 12.2.

The rear folding flaps 13.1, 13.2 are attached to the rear wall 8 through side folding lines 14.1, 14.2. The lower rear delta flaps 15.1, 15.2 are attached via lower rear side fold lines 16.1, 16.2, 16.3, 16.4 to the rear edges of the lower side wall parts 6.1, 6.2 and to the lower edges of the rear fold flaps 13.1, 13.2. The upper rear delta flaps 17.1, 17.2 are attached through the upper rear side fold lines 18.1, 18.2, 18.3, 18.4 to the rear edges of the upper side wall parts 12.1, 12.2 and to the upper edges of the fold flaps rear 13.1, 13.2.

Through an upper front folding line 19, an upper front wall part 20 is attached to the lid wall 10.

The lower front wall part 2 has a lower locking element 21. This comprises a locking flap 22 which is attached to the upper edge of the lower front wall part 2 through a central folding line 23. Furthermore, the element The locking tab 21 comprises a locking tab 24 attached to the locking flap 22, which is punched from the lower front wall portion 2 at an interruption 25 of the central fold line 23.

The upper front wall portion 20 comprises an upper locking member 26 which is formed by a locking slot 27 for receiving the locking tab 24.

The base wall 4, the rear wall 8 and the cover wall 10 are each rectangular in shape. The lower front wall portion 2 and the upper front wall portion 20 are configured substantially rectangular in shape.

The upper edges of the lower side wall parts 6.1, 6.2 are rectilinear at the front and have a rearward facing bevel 28.1, 28.2 at the rear. Therefore, at the front, the lower side wall parts 6.1, 6.2 have their greatest height, and at the rear, the height of the front side wall parts 6.1, 6.2 gradually decreases. The maximum height of the lower side wall parts 6.1, 6.2 is greater than that of the upper side wall parts 12.1, 12.2.

In the state according to Figure 1, a multiplicity of cutouts 1.1 can be stored stacked on top of each other, saving space. For lifting, individual cuttings 1.1 are removed from the pile.

According to Figure 2, the lower side wall parts 6.1, 6.2, the folding flaps 13.1, 13.2 and the upper side wall parts 12.1, 12.2 are first folded inward during assembly thereby pre-breaking the fold lines laterals 5.1, 5.2, 18.1, 18.2, 14.1, 14.2.

According to Figure 3, the lower side wall parts 6.1, 6.2 and the rear wall 8 are then lifted.

Next, the lower front wall part 2 is lifted and, according to Figure 4, the cutout 1.1 prepared in this way is inserted into a lifting aid 29 in the form of a rectangular frame. In the position shown in Figure 4, fast-moving consumer items can be advantageously introduced into the pre-folded cutout 2 or into the pre-folded folding box 30.1.

According to Figure 5, then, the upper side wall parts 12.1, 12.2 are lifted and the lid wall 10 is closed. During this, the lower edges of the upper side wall parts 12.1, 12.2 slide over the bevels 28.1, 28.2 towards the outer sides of the lower side wall parts 6.1, 6.2.

In Figure 6, the lid wall 10 is almost completely closed.

Figure 7 shows the lid wall 10 completely closed during the insertion of the locking tab 24 into the locking slot 27. To do this, the locking flap 22 is folded into a horizontal orientation. Finally, the locking flap 22 is folded upward and the folding box 30.1 is closed, as shown in Figure 8.

The cutout 1.2 of Figure 9 differs from the cutout 1.1 of Figure 1 in particular in that the lower fold lines 3, 7 between the lower front wall part 2, the rear wall 8 and the base wall 4 are curved towards inside. Furthermore, the upper fold lines 9, 19 between the lid wall 10, the rear wall 8 and the upper front wall portion 20 are curved inward.

Furthermore, the lower side wall part 6.1 has at the upper edge between the ends a rearwardly facing lower bevel 31.1 in the form of a rearwardly curved lower area ending behind in a lower corner 32.1. Furthermore, the lower side wall part 6.2 has on the upper edge between the ends a forward-facing lower bevel 31.2 in the form of a forward-curved lower area, which ends at the front in a lower corner 32.2.

The lower edge of the upper side wall part 12.1 has a forward-facing upper chamfer 33.1 in the form of a forward-curved upper area, which ends at the front in an upper corner 34.1. The lower edge of the upper side wall part 12.2 has a rearwardly facing upper bevel 33.2 in the form of a rearwardly curved upper area, which ends behind in an upper corner 34.2.

According to Figure 10, by lifting this cutout 1.2, first of all, the rear wall 8 is raised and the cover wall 10 is folded onto the base wall 4. In this partially raised position, fast-moving consumer items can be advantageously placed. on the base wall 4.

According to Figure 11, then the lower side wall parts 6.1, 6.2 and the upper side wall parts 12.1, 12.2 are lifted and the lower locking elements 21 and the upper locking elements 26 are locked together in the manner described with reference to Figures 8 and 9. The locked state is shown in Figure 12. Via the open side walls, fast-moving consumer items can then also be introduced laterally into the folding box 30.2.

Finally, the lower and upper side wall parts 6.1, 12.1, 6.2, 12.2 are locked together by first lifting the lower side wall parts 6.1, 6.2, as shown in Figure 13. Next, when the lower side wall parts 6.1, 6.2 are locked together, upper side wall parts 12.1, 12.2 are pressed against the lower side wall parts 6.1, 6.2 until the upper side wall parts 12.1, 12.2 are left with the upper curved areas 33.1, 33.2 in contact with the outer sides of the side wall parts lower edges 6.1, 6.2 and the adjacent less curved sections of the lower edges of the upper side wall parts 12.1, 12.2 are pressed behind the lower curved areas 31.1, 31.2 of the lower side wall parts 6.1, 6.2. Finally, the curved areas 31.1, 31.2, 33.1, 33.2 of the upper and lower side wall parts 12.1, 12.2, 6.1, 6.2 are in contact with each other at the upper and lower corners 34.1, 34.2, 32.1, 32.2 and nested together stably. In this situation, the folding box 30.2 is shown in Figure 14.

List of reference signs

1.1, 1.2 Trimming

2 Lower front wall part

3 Lower front fold line

4 Base wall

5.1, 5.2 Bottom Side Fold Line

6.1, 6.2 Lower side wall part

7 Rear bottom fold line

8 Rear wall

9 Rear top fold line

10 Cap wall

11.1, 11.2 Top Side Fold Line

12.1, 12.1 Upper side wall part

13.1, 13.2 Rear folding flap

14.1, 14.2 Side Fold Line

15.1, 15.2 Lower rear delta flap

16.1, 16.2, 16.3, 16.4 Bottom Rear Side Fold Line

17.1, 17.2 Upper rear delta flap

18.1, 18.2, 18.3, 18.4 Upper rear fold line

19 Upper front fold line

20 Upper front wall part

21 Lower locking element

22 Interlocking flap

23 Center fold line

24 Locking tab

25 Interruption

26 Upper locking element

27 Locking slot

28.1,28.2 Bevel

29 Lifting aid

30.1, 30.2 Folding box

31.1, 31.2 Backward curved area

32.1, 32.2 Bottom corner

33.1, 33.2 Upper area curved forward

34.1, 34.2 Top corner

Claims (15)

1. Folding box formed by a cutout (1) in a single piece of cardboard or other flat folding material, in particular for housing fast-moving consumer items, comprising: • a lower front wall part (2) with a lower locking element (21), • a base wall (4) joined to the lower front wall part (2) through a lower front folding line (3), • lower side wall parts (6.1, 6.2) attached to the base wall (4) through lower side fold lines (5.1, 5.2), • a rear wall (8) joined to the base wall (4) through a lower rear folding line (7), • a lid wall (10) joined to the rear wall (8) through a line rear upper folding lines (9), • upper side wall parts (12.1, 12.2) attached to the lid wall (10) through upper side folding lines (11.1, 11.2), • rear folding flaps (13.1, 13.2) attached to the rear wall (8) through side folding lines (14.1, 14.2), • lower rear delta flaps (15.1, 15.2) attached to the rear edges of the lower side wall parts (6.1,6.2) and to the lower edges of the rear folding flaps (13.1, 13.2) via rear side fold lines lower (16.1 to 16.4), • rear upper delta flaps (17.1, 17.2) attached to the rear edges of the upper side wall parts (12.1, 12.2) and to the upper edges of the rear folding flaps (13.1, 13.2) via upper side fold lines rear (18.1 to 18.4), • an upper front wall part (20) joined to the lid wall (10) through a upper front folding line (19), with an upper locking element (26), •characterized because • between the lower front wall part (2) and the lower side wall parts (6.1, 6.2), as well as between the upper front wall part (20) and the upper side wall parts (12.1, 12.2) are not present respectively folding flaps and delta flaps, and • the folding box (30) can be lifted by lifting the lower side wall parts (6.1, 6.2), folding the rear folding flaps (13.1, 13.2) inwards, lifting the rear wall (8), lifting the side wall parts tops (12.1, 12.2), folding the cover wall (10) in parallel orientation on the base wall (4), folding the lower front wall part (2) and the upper front wall part (20) towards each other. and locking the lower and upper locking elements (21,26) with each other. 2. Folding box according to claim 1, wherein the lower front folding line (3), the lower rear folding line (7), the upper rear folding line (9) and the upper front folding line (19 ) are arranged parallel to each other. 3. Folding box according to claim 1, wherein the lower front fold line (3) and the lower rear fold line (7) are respectively curved inwards and in which the upper rear fold line (9) and the upper front folding line (19) are respectively curved inwards. 4. Folding box according to one of claims 1 to 3, wherein the lower side wall parts (6.1, 6.2) are higher than the upper side wall parts (12.1, 12.2) and the lower side wall parts ( 6.1,6.2) are laterally overlapped above by the upper side wall parts (12.1., 12.2) at least in sections. 5. Folding box according to claim 4, wherein the lower side wall parts (6.1, 6.2) are as high as the rear wall (8). 6. Folding box according to claim 4 or 5, wherein the lower side wall parts (6.1, 6.2) have rearward-facing lower bevels (28.1, 28.2) at the upper edge. 7. Folding box according to claim 5 or 6, wherein the lower bevels (28.1, 28.2) are arranged at the rear end of the lower side wall parts (6.1,6.2). 8. Folding box according to one of claims 1 to 4, wherein the lower side wall parts (6.1, 6.2) have on the upper edge between the ends lower bevels (31.1, 31.2) facing rearwards and/or forwards , and the upper side wall parts have upper bevels (33.1, 33.2) facing forwards and/or rearwards on the lower edge between the ends. 9. Folding box according to claim 8, wherein the lower side wall parts (6.1, 6.2) have on the upper edge next to the lower bevels (31.1, 31.2) lower corners (32.1, 32.2) and the wall parts The upper sides have, along with the upper bevels (33.1, 33.2), upper corners (34.1, 34.2). 10. Folding box according to one of claims 6 to 9, wherein the bevels (28.1,28.2; 31.1, 31.2; 33.1, 33.2) are rectilinear or curved. 11. Folding box according to one of claims 1 to 10, wherein the upper front wall part (20) is higher than the lower front wall part (2) and, in the raised state, the front wall part bottom (2) is in contact with the outer side of the upper front wall part (20), or in which the lower front wall part (2) is higher than the upper front wall part (20) and, In the raised state, the upper front wall part (20) is in contact with the outer side of the lower front wall part (2). 12. Folding box according to claim 11, wherein the upper front wall portion (20) is as high as the rear wall (8) or wherein the lower front wall portion (2) is as high as the wall rear (8). 13. Folding box according to one of claims 1 to 12, wherein the lower locking element (21) and the upper locking element (26) have a pivotable locking tongue (24) on the lower front wall part ( 2) and a locking slot (27), formed to receive the locking tab (24), in the upper front wall portion (20). 14. Folding box according to claim 13, wherein the lower front wall portion (2) is attached at the upper edge, via a central fold line (23), to a locking tab (22) which is joined at an interruption (25) of the central fold line (23) to a locking tab (24) punched from the lower front wall part (2), which can be inserted into the locking groove (27) of the upper front wall portion (20) by pivoting the locking tab (22). 15. Folding box according to one of claims 1 to 14, wherein the lower side wall parts (6.1, 6.2) have substantially rectilinear upper edges and the upper side wall parts (12.1, 12.2) have substantially rectilinear lower edges, or wherein the lower side wall portions (6.1, 6.2) have substantially curved upper edges and the upper side wall portions (12.1, 12.2) have substantially curved lower edges.