Folding box, in particular a pizza box
Patent Information
- Application Number
- EP2023798337
- Authority / Receiving Office
- EP · EP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2022-09-27
- Filing Date
- 2023-09-26
- Publication Date
- 2025-08-13
- Estimated Expiration
- 2043-09-26
AI Technical Summary
Existing folding boxes, such as pizza boxes, face issues with stability and ease of stacking due to deformation of side walls during closure, leading to potential sticking problems and inefficient stacking and transportation.
A folding box design featuring a base part and lid part connected via a film hinge, with convex-polygonal shapes and angled side walls that maintain stability without bending, allowing for pre-assembly and easy stacking, and utilizing closure connections to secure the lid part in place, ensuring minimal effort for users and resource-saving packaging.
The design provides a stable, resource-efficient, and volume-saving folding box that maintains structural integrity during handling and transportation, with enhanced torsional rigidity and load capacity, facilitating efficient work processes and cost-effective production.
Smart Images

Figure 1.1
Abstract
Description
Folding box, especially pizza box Field of the invention The invention relates to an open stackable folding box, in particular a pizza box. State of the art The closest prior art is considered to be the solution according to EP 0 912 406 B1. This document describes a carton designed as a hinged-lid container for food. In a first embodiment (Figs. 1-5), the container has a base with four sloping, interconnected side walls 14a-d and a lid with three interconnected side walls 17a-c. When closing the container, the side walls of the base must be deformed inward. In other words, the side walls of the lid are forced over the side walls of the base. In a second embodiment (Figs. 6-9), the side walls of the base and lid are provided with fold lines (Fig. 6, items 22 / 23) so that the container can be folded flat. The closing problem is the same as in the first embodiment. The container is held in its closed state only by the mutual abutment of the sloping side walls.Furthermore, when closing this container according to EP 0 912 406 B1, the error may occur that the parts 14b in Fig. 1 or 14a / c in Fig. 6 get stuck and do not "unfold" outwards into the edge of the lid part, which is detrimental to the stability of the container. Another relevant solution is disclosed in EP 2 263 951 B1. This shows (see, for example, Figs. 5 and 6A / 6B) a folding carton for food products, which has a base part with sloping, fixed side walls and a lid part with movable side walls. In Figs. 2A / 2B, tab connections 212 / 232 are shown on the side flaps, but they have an insert ("tray 124", para.
[0034] ) for the storage of food. The carton itself is described in paragraph
[0010] This is described in more detail in the corresponding Figs. 5-6B. The document provides no indication that the two side walls are even adjacent, let alone fixed in one position. The publication FR 2 936 226 A1 discloses stackable cartons with sloping side walls on the base part (Figs. 2 and 17). Figures 10 to 17 show numerous embodiments in which the sloping side walls of the base part are provided with recesses into which corresponding areas of the lid part engage to form positive connections between the lid and base part. EP 0 548 879 A1 also discloses stackable cartons with sloping side walls and many different form-fitting connections between the lid and base, see Figures 1 to 32. Based on this prior art, the present invention seeks to provide an open-stackable folding box that allows for a defined alignment of the side walls of an upper part to the corresponding side walls of a lower part, while maintaining this alignment with minimal effort for the user. Furthermore, the object is to provide a pre-assembled folding box that can be stacked in a volume-saving manner and thus transported inexpensively. Furthermore, the object is to provide a folding box that saves resources and is nevertheless stable in handling, thanks to clever mutual support of the side walls and a membrane-supporting effect. The object is achieved with a folding box according to the present invention having the features of claim 1. A folding box (1) is provided which is in one piece and has a base part (10) and a lid part (12) which are movable relative to one another via a film hinge (11), wherein the base part (10) has a convex-polygonal base part base body (10a) having at least three corners, and in the pre-assembled as well as in the closed state of the folding box (1), a hinged side wall (16) extends upwards from one side edge of the base part base body (10a) and a base part side wall (15) extends upwards from each of the other side edges of the base part base body (10a), wherein the base part side walls (15) are substantially planar and are connected circumferentially to the hinged side wall (16), and the base part side walls (15) form an individual angle ß_sw_i of more than 90° relative to the base part base body (10a). have, wherein the lid part (12) has a lid part base body (12a) which has substantially the same convex-polygonal shape as the bottom part base body (10a) of the bottom part (10), but is larger than the bottom part base body (10a), and the film hinge (11) to the bottom part (10) is provided on one side edge of the lid part base body (12a), and a lid part side wall (17) is provided on each of the other side edges of the lid part base body (12a), wherein a folding edge (55) is formed between each lid part side wall (17) and the lid part base body (12a) at the latest when the folding box (1) is closed, characterized in that in the pre-assembled and in the closed state of the folding box (1), the bottom part side walls (15) and the hinge side wall (16) are arranged relative to the bottom part base body (10a) are fixed,while, when the folding box (1) is closed, the lid part side walls (17) are moved relative to one another without them themselves having to be curved or bent for closing, wherein, in the closed state of the folding box (1), the lid part side walls (17) rest on the outside of the corresponding base part side walls (15) in an at least partially overlapping manner (= position A) and the lid part side walls (17) are fixed in this position A as a whole by at least one closure connection, and at least two base part side walls (15) support the lid part (12) in the region of the respective folding edge (55) at least in a partial section at their edges (15R). Advantageous embodiments of the device according to the invention are set out in the subclaims. The folding box according to the invention generally serves the purpose of providing stable, yet resource-saving, flat packaging, and is used in particular as transport packaging for flat to-go food items, such as pizza boxes for ready-made pizzas. It is preferably a flat folding box for flat contents (height << length / width). However, taller folding boxes are also envisaged, which can accommodate, for example, cakes, cake slices, chicken pieces, etc. A folding box is understood to be a three-dimensional, closed container produced from a plate-shaped, cut, and grooved or perforated precursor by folding and joining. In this context, "closed" means that all sides of the container have a wall, which may, however, contain perforations or openings. The steps of producing the folding box from the pre-product include firstly, pre-assembly and secondly, closing it. After pre-assembly, the folding box has a pre-assembled state in which the base part is trough-shaped and the lid part is flat (whereby “flat” does not mean strictly planar, but rather this lid part can be pre-folded along grooves). In the pre-assembled state, the lid part can already rest on the base part, but usually the lid part and base part are opened quite widely, e.g. slightly over 90° or even by around 180°. With an opening angle of around 180°, the folding boxes can be stacked in a volume-saving manner in the pre-assembled state and can therefore be easily stored, transported and shipped. This stacked state is shown in Fig. 5 for clarity.With an opening angle of just over 90°, the pre-assembled folding boxes are also space-saving and stackable, as the lids are positioned vertically, reducing the footprint. This allows for more efficient workflows when used as a pizza box, for example, than with comparable conventional pizza boxes, which are only stackable when closed in the pre-assembled state and must first be opened again for filling. Unlike comparable conventional folding boxes, pre-assembly can be performed earlier and / or in larger quantities, and if necessary, automated. Pre-assembly can be performed in partial steps and can also be partially or completely reversed, provided the joints are detachable or partially detachable. Before the folding box is used, specifically before the pizza is placed in it and the box is closed, it is in a pre-assembled state and is usually stored or transported and stored in this state. Pre-assembly can only be carried out by folding and form-fitting, force-fitting and / or material-fitting joining. Pre-assembly can be carried out by hand in the simplest case without any tools or entirely by machine. Pre-assembly can be carried out by the user of the folding box or by the manufacturer or a processing company. In the latter case, the user of the folding box, such as a pizza maker, only has to fill and close the folding box before use. Closing is achieved by folding and force-fitting, form-fitting, and / or material-fit joining, which can be detachable, detachable by destruction, or non-detachable. Material-fit joining by adhesive bonding can be achieved using adhesive surfaces between parts of the folding box or using adhesive tape or stickers. There is also the option of using separate parts that are removed during the process. be glued together with adhesive. The material used for the folding box is particularly suitable for solid or corrugated cardboard, as well as carton or paper; plastics or metals are also conceivable. The special lightweight design of the folding box essentially represents a lightweight supporting structure with high torsional rigidity and pressure stability. This results in robust handling while simultaneously requiring significantly less material. Compared to the prior art, the folding box according to the invention, made of thin / light cardboard or solid board, is a very resource-efficient folding box. This not only involves savings in terms of the material itself, but also considers the ecological aspect of resource conservation. The special lightweight design of the folding box according to the invention is based on the following aspects. Even in the pre-assembled state, the fixed, circumferentially interconnected side walls of the base section provide the box with a basic level of rigidity for handling during filling and closing. The side walls do not need to be bent or folded for closing, thus exhibiting no weak points in terms of rigidity, regardless of the pre-assembled or closed state of the folding box. When closed, at least two base part side walls support the fold edges of the lid part, which already provide rigidity, and give them additional rigidity. At the same time, the guidance of the edge of the base part side walls in the acute-angled fold edge prevents this edge from bulging inwards, which would not be possible without this guidance, i.e. if the lid part side walls protruded perpendicularly from the lid part base body. In addition, the abutting base part and lid part side walls create a double wall. This means that the base part and lid part side walls can withstand lateral compressive forces in particular as well as compressive and shear loads acting in the plane of the walls. This makes the folding box less sensitive to lateral impacts and it has high local rigidity against compression, e.g. when the folding box is held clamped with one hand as a cantilever arm. When closed, the inclined position of the base part in the same direction The side walls are directed outwards, and the external and fixed arrangement of the lid section side walls relative to the corresponding base section side walls, as well as the additional supporting effect of the base section side walls in the lid section base body described above, creates a kind of membrane-type load-bearing effect. This leads, firstly, to increased load-bearing capacity against vertical compressive loads acting from the outside on the lid section base body (e.g., with smaller folding boxes / containers placed on the lid section) and, secondly, to increased torsional rigidity of the folding box itself. The terms "base part" and "lid part" used here are used for clarity and because this is expected to be the norm. A use of the folding box according to the invention in which the lid part is spatially located at the bottom and the base part at the top, or both are spatially oriented differently, is also conceivable and included. The folding box, in particular, has a one-piece construction, meaning the base and lid sections are made from the same pre-product, are cut out together, and remain intact at least until the folding box is closed. Additionally, pre-prepared separation options can be present in the area between the base and lid sections, e.g., perforation and / or a tear strip. This has the advantage of providing two "plates" and is similar to the freshness seal on Call a Pizza. In addition, both sections can also have perforations or cutouts. The shape of the base and lid parts is a convex polygonal surface with at least three corners. Typically, they will have four corners and be rectangular, especially nearly square. However, three, six, and eight corners are also conceivable, as are other numbers starting from three. The term "convex polygon" meant that all interior angles of the polygon enclosing the surface are less than 180°. The base and lid side walls, as well as the hinge side wall, are in the simplest case trapezoids (true or convex, not overlapped), with one base side being at the fold line to the base body and the other base side being the outer edge (also called the rim) or film hinge, and the two legs representing the lateral ends of the side wall. In other cases, the surfaces of the trapezoids can have reducing openings or cutouts and / or be The trapezoids have extended tabs attached. In other cases, the two parallel sides of a trapezoid may also be only approximately parallel to each other, which means, for example, that the base and lid parts may not be arranged parallel to each other, or that one or both base parts may be curved. In the context of the base section side walls and the hinged side wall, "fixed" means that they have a certain shape-retaining rigidity and do not need to be folded, bent, or twisted to close the folding box. The circumferential connection between these side walls does not have to extend over the entire height of the folding box. The fact that the base part side walls have an individual angle of more than 90° to the base part base body means that they are not perpendicular, but are inclined outwards away from the base part base body. "Individual" means that this angle can vary from base part side wall to base part side wall. The hinged side wall is preferably also inclined outwards, but could also be perpendicular to the base part base body or inclined inwards. The load-bearing capacity of the folding box is higher if the hinged side wall is also inclined outwards. Stackability is somewhat impaired by a vertical or inward-tilted hinged side wall, but this could be compensated for, for example, in a rectangular design, by a greater inclination of the base part side wall on the opposite side. The lid part has fold edges between the lid part's base body and its lid part's side walls. When the folding box is closed, at least two base part side walls touch these fold edges over at least a portion of the fold, providing additional support. The support effect can also extend along the entire length of the fold edge. There are three options for holding down or fixing the lid part side walls in position A, which takes place when the folding box is closed, which can also be combined: 1a) at least one is connected to the base part at at least one point in addition to the hinged side wall, 1b) two adjacent lid part side walls are connected to each other at at least one point or 2) two adjacent lid part side walls are coupled to each other. The connection in options 1a and 1b is referred to in this application as a closure connection. This closure connection can be force-fitting or form-fitting or with additional connecting means such as adhesive, stickers, adhesive tape or stapler. The connection point can be point-shaped, linear or flat. Each lid part side part can be connected to the base part or to another lid part side part by a closure connection to hold it down or fix it in position A. In the case of a rectangular folding box, for example, at least two closure connections between the lid part side walls or at least three closure connections between the lid part side parts and the base part are necessary. In principle, a closure connection can also connect two lid part side parts and the base part to one another at the same time.There may also be at least two closure connections, at least one of which acts between at least one lid part side wall and the base part and at least one of which acts between two adjacent lid part side walls. All cover part side walls not held down or fixed in this way by a locking connection are held down or fixed in position A by a coupling with at least one other cover part side part, in accordance with option 2) above. The difference between the coupling and the locking connection between two cover part side parts lies in the simplicity of the design and the associated unidirectional effect. Due to the coupling, one cover part side part is held down or fixed by another, without a similar reaction on the other. A further difference is the ease of handling when closing, which will be shown in the embodiments. Several couplings can also be connected in series, so that, for example, one cover part side part is held down or fixed in position A by a second one, and this in turn is held down or fixed in its position A by a third cover part side part.is fixed, and only the third lid part side part is connected to the base part by a locking connection to hold it down or fix it in position A. These connections reduce the number of locking connections required to close the folding box to one in the best case scenario. This also makes later opening of the folding box to remove the contents as easy as possible. Short description of the characters Fig. 1A shows a folding box according to the invention according to a first embodiment; Fig. 1B shows a folding box according to the invention according to a second embodiment; Fig. 2 shows a plan view of the lid part with the lid part side walls and retaining tabs according to the first embodiment; Fig. 3 shows a plan view of the lid part with the lid part side walls and gussets according to the second embodiment; Fig. 4 shows a perspective view of the folding box according to the invention in the closed state; Fig. 5 shows schematically how the folding boxes according to the invention can be stacked in a space-saving manner; Fig. 6 shows a further perspective view of the folding box according to the invention in the closed state in the embodiment with couplings between the respective lateral lid part side walls and the front lid part side wall; Fig. 7 shows a section along the section line AA of Fig. 6; and Fig. 8 shows a plan view of the front area of the cover part base body. Detailed description of the preferred embodiments Fig. 1A shows a folding box 1, which consists in one piece of a base part 10 and a lid part 12. The base part 10 consists of a convex-polygonal base part base body 10a having at least three corners. In this specific case, the base part base body 10a is square and has three base part side walls 15 and a hinged side wall 16. In the preassembled state, the side walls 15, 16 are inclined outwards relative to the base part base body 10a and are connected to one another circumferentially. The base part side walls 15 have an inclination angle ß_sw_i of more than 90° to the base part base body 10a. The inclination angles ß_sw_i are the same for all base part side walls 15, and the hinged side wall 16 is also inclined outwards at the same angle. The cover part 12 consists of a cover part base body 12a and cover part side walls 17. The cover part base body 12a has the same basic shape as the base part base body 10, but is slightly larger than the latter. The cover part base body 12a is connected to the hinge side wall 16 via a film hinge 11. connected. In the preassembled state, the cover part side walls 17 are movable relative to one another and relative to the cover part base body 12a without having to be bent themselves. In the preassembled state, the cover part side walls are at least partially movable independently of one another. To facilitate understanding, three states are defined. The first state refers to the stage in which a planar, two-dimensional blank (not shown) is present, from which the folding box 1 according to the invention is later produced. The second state is the so-called "pre-assembled" state (see, for example, Fig. 1A or Fig. 1B), which shows the stackable folding box 1 according to the invention with the tub-shaped base part after the blank has been folded. The third state is the closed state of the folding box 1 (Fig. 4 or 6). As shown in Fig. 6, the lid part side wall 17 can be cut or punched such that it becomes increasingly narrower from front to back towards the film hinge 11. The height of the lid part side wall 17 can theoretically be reduced to zero at its rear end. When the folding box 1 is closed, the lid part side walls 17 approximately (not technically exact) rest on the outside of the respective base part side walls 15 and are held down or fixed in this position A. When the folding box is closed, the edges 15R of the base part side walls 15 touch the area of the folded edges 55 over at least part of their length. At the upper edge of the base part side wall 15 (in Fig. 1B at the front position 15R), one or more projections (not shown) of any shape can be present, for example, in the form of a circular segment. This creates one or more defined contact points in the area of the folded edge between the lid part base body 12a and the front lid part side wall 17 (in Fig. 1B, the "upper" position 17 at the top of 12A). This allows the torsional rigidity of the closed folding box to be further increased. In the first embodiment according to Fig. 1A, two retaining tabs 20 are provided for holding down or fixing the two lateral lid part side walls 17 in the closed state. To close the folding box 1, starting from the pre-assembled state shown in Fig. 1A, the lid part 12 is folded downwards, then the two lateral lid part side walls 17 are placed on the outside against the corresponding base part side walls 15. Then, in an ergonomically designed process, the retaining tabs 20 are folded over and attached to the left and right edge area of the box shown in Fig. 1A. front base part side wall 15. The front lid part side wall 17 shown in Fig. 1A is then folded downward, whereby the retaining tabs 20 and, with them, the corresponding lid part side walls 17 are positively locked. Finally, one or more lid part closure regions 51 are brought into engagement with one or more corresponding base part closure regions 50 between the front lid part side wall 17 and the base part 10. Fig. 1B shows a second embodiment of the folding box. The only difference from the solution according to Fig. 1A is that the function of the retaining tabs 20 is now taken over by gussets 30. When the folding box 1 is closed, the gusset 30 is folded inward so that it lies between the front lid part side wall 17 and the front base part side wall 15. The gusset 30 of the second embodiment is explained in more detail with reference to Fig. 3. This connects two adjacent lid part side walls 17 and couples them. It consists of two surface elements 30a-b and three fold lines 31a-c, wherein the angle between the fold lines 31a and 31b is as large as the angle between the fold lines 31b and 31c. The surface element 30a adjoins one lid part side wall 17 via the fold line 31a. The surface element 30b adjoins the surface element 30a via the fold line 31b. Furthermore, the surface element 30b is connected to the other lid part side wall 17 via the fold line 31c. The gusset is preferably made in one piece, extending from one side wall to the other, or can also be created / manufactured subsequently (by subsequently embossing the cardboard material, by connecting existing flaps or adding flaps, etc.). The gusset is as shown in Fig.3, it is grooved or perforated along the three fold lines 31a-c so that it can be easily folded inwards when the folding box is closed. To ensure that the gussets 30 can be folded easily, punched out portions (i.e., openings) of any shape can be introduced into the gusset areas 30a, 30b. Another possibility for facilitating the folding process is to partially cut or punch through the cardboard material in the area of the fold lines 31a, 31b and / or 31c. This latter measure is of course not limited to the fold lines 31a-c, but can also be used, for example, on the fold edges 55. If a fold line or fold edge is cut through in sections, the carton can be folded more easily and the recovery force of the cardboard material is lower. When the folding box 1 is closed, the gusset 30 is in In a folded form, it is clamped between the lid part side wall 17 (in Fig. 1B, the front lid part side wall 17) and the corresponding base part side wall 15 (in Fig. 1B, the front base part side wall 15) and is fixed between them. By being predeterminably fixed in this way, it ensures that the other lid part side wall (in Fig. 1B, one of the lateral lid part side walls 17) is held down and fixed in its position A without requiring its own locking connection to the base part 10. For the first and second embodiments of the invention, a lid part side wall 17, preferably the one that secures the retaining tabs 20 or the gussets 30, is connected to a corresponding base part closure region 50 via a lid part closure region 51. This can be done, for example, in the form of a type of push-through connection. It is also possible to design the lid part closure region 51 in the form of a closure tab that engages the base part closure region 50. It is equally possible to design the base part closure region 50 in the form of a closure tab that engages the lid part closure region 51.The specific implementation of this closure connection is not crucial for the invention per se - it must only be ensured that these elements fix all lid part side walls directly or indirectly via the retaining tabs 20 or the gussets 30 in the respective position A. The retaining tabs 20 or the gussets 30, arranged according to the invention, effect a coupling between two adjacent lid part side walls in the closed state of the folding box 1 and serve to reduce the number of closure connections between lid part side walls 17 and the base part 10. In the closed state of the folding box 1, depending on the embodiment according to the invention, the two lateral lid part side walls are fixed in position A either by the holding tabs 20 or by two gussets 30, which are each clamped between a base part side wall 15 and the front lid part side wall 17. With reference to Fig. 1A and Fig. 1B, the edges 15R of at least one base part side wall 15 have, over at least a partial section of the edge 15R, an engagement part 44 which engages in a corresponding recess 40 provided in the lid part base body 12a. In Fig. 1A and 1B, two engagement parts 44 are shown as examples, which engage in the two corresponding recesses 40. Other numbers of engagement parts 44 can also be selected; the location of the attachment should also be determined by the The illustration shown in FIGS. 1A and 1B is not limited to this. For example, it is also possible to provide at least one engagement part 44 on the front side wall 15 (the side wall on which the base part closure regions 50 are shown), for which a corresponding recess 40 is naturally also provided. The engagement of the engagement parts 44 in the recess 40 results in a very shear-stable and torsion-resistant construction of the folding box 1. Fig. 7 shows a section along section line AA of Fig. 6. In the area of detail B, outlined with a dot-dash line, one can see how the upper edge 15R of the base part side wall (see also Fig. 1B) is literally clamped at the folded edge 55 between the lid part base body 12a and the lid part side wall 17. This is due to the fact that the angle between positions 12a and 17 is less than 90°. The base part side wall 15 cannot deflect in the closed state, which contributes to the excellent stability and torsional rigidity of the box. Fig. 8 shows a plan view of the front area of the lid part base body 12a with the lid part side walls 17, the gussets 30, the lid part closure area 51 in the form of an extra-wide flap, and two further fold lines 57. The lid part closure area 51 in the form of the flap shown is inserted into a correspondingly wide base part closure area 50, which is punched in the lower area of the associated base part side wall 15 (cf. Fig. 1B). The two fold lines 57 help ensure that, when the box is closed, the gussets 30 do not exert any force to pull out the flap 51 again. The lid part closure area 51 can have a width in the range of, for example, 2 to 20 cm for a square folding box with an exemplary size of 30 cm x 30 cm. A key difference between the solution according to EP 0 912 406 and both embodiments of the folding box according to the invention is that, in the preassembled state, the lid-part side walls 17 are movable relative to one another without having to be bent and / or folded. As soon as crease lines are present on a side wall of a folding box such as that according to document EP 0 912 406 (regardless of whether the side wall belongs to the base part or the lid part), this has an extremely negative effect on the stability of the box as a whole. List of reference symbols:
Claims
Patent claims 1. Folding box (1) which is in one piece and has a base part (10) and a lid part (12) which are movable relative to one another via a film hinge (11), wherein the base part (10) has a convex-polygonal base part base body (10a) having at least three corners, and in the pre-assembled as well as in the closed state of the folding box (1), a hinged side wall (16) extends upwards from one side edge of the base part base body (10a) and a base part side wall (15) extends upwards from each of the other side edges of the base part base body (10a), wherein the base part side walls (15) are substantially planar and are connected circumferentially to the hinged side wall (16), and the base part side walls (15) have an individual angle ß_sw_i of more than 90° relative to the base part base body (10a), wherein the cover part (12) has a cover part base body (12a),which has substantially the same convex-polygonal shape as the base part base body (10a) of the base part (10), but is larger than the base part base body (10a), and on one side edge of the lid part base body (12a) the film hinge (11) to the base part (10) is provided, and on the other side edges of the lid part base body (12a) a lid part side wall (17) is provided, wherein between each lid part side wall (17) and the lid part base body (12a) at the latest when the folding box (1) is closed, a folding edge (55) is formed, characterized in that in the pre-assembled and in the closed state of the folding box (1), the base part side walls (15) and the hinge side wall (16) are designed to be fixed relative to the base part base body (10a), while when the folding box (1) is closed, the lid part side walls (17) are moved relative to each other,without them having to be curved or bent for closing, wherein in the closed state of the folding box (1) the inner sides of the lid part side walls (17) rest against the outer sides of the corresponding base part side walls (15) in an at least partially overlapping manner (= position A) and the lid part side walls (17) are fixed in this position A as a whole by at least one closure connection and at least two base part side walls (15) support the lid part (12) on the inside in the region of the respective folding edge (55) at least in a partial section.
2. Folding box according to claim 1, characterized in that the at least one Closure connection between at least one lid part side wall (17) and the base part (10).
3. Folding box according to claim 1 or 2, characterized in that the at least one closure connection acts between respectively adjacent lid part side walls (17).
4. Folding box according to claim 2 or 3, characterized in that at least one lid part side wall (17) is fixed in position A in the closed state of the folding box (1) only by coupling with an adjacent lid part side wall (17), which in turn is itself fixed in position A.
5. Folding box according to claim 4, characterized in that the coupling is produced by means of a retaining tab (20) on one lid part side wall (17) and its positive locking by an adjacent lid part side wall (17) which is itself fixed in position A.
6. Folding box according to claim 4, characterized in that the coupling is produced by means of a gusset (30) between two adjacent lid part side walls (17), in that one lid part side wall is fixed by a positive locking of the gusset from the adjacent lid part side wall (17), which in turn is itself fixed in position A.
7. Folding box according to one of claims 1 to 6, characterized in that at least one bottom part side wall (15) has at least one fixed tab (44) in a partial area of the edge (15R) and this, in the closed state of the folding box (1), projects into a corresponding opening (45) in the lid part (12) and here creates a supplementary positive connection acting in the direction of the folding edge (55).
Citation Information
Patent Citations
Improvements in or relating to containers
EP0912406B1