Cuboid folding carton, carton cutting and use thereof, as well as methods for manufacturing a folding carton

Abstract

A cuboid folding carton (1) with a front wall (5) and a rear wall (6) which are connected to each other by a left side wall (7) and a right side wall (8) to form a wall (9) surrounding an interior space (3), wherein the left side wall (7) and the right side wall (8) each have a first recess (31) designed as a handle (30), wherein an upper inner flap (10) is hinged to at least one of the side walls (7, 8) along a first fold line (11), characterized in that the inner flap (10) comprises a second fold line (12) and a third fold line (13), wherein a first section (21) of the inner flap (10) is located between the first fold line (11) and the second fold line (12), a second section (22) is located between the second fold line (12) and the third fold line (13), and a third section (23) is located between the third fold edge (13) and a free end (14) of the inner flap (10) extends,wherein by folding the inner flap (10) at the first fold line (11) the first section (21) forms a support edge (20) extending at least approximately orthogonally to the at least one side wall (7, 8), wherein the second section (22) is folded at the second fold line (12) by more than 90° relative to a lid plane (42) into the interior (3), wherein the folding carton (1) comprises a second recess (24) which is provided in the inner flap (10) at the level of the third fold line (13).

Description

The invention relates to a cuboidal folding carton having a front wall and a rear wall which are connected to one another by a left side wall and a right side wall to form a wall surrounding an interior space, wherein the left side wall and the right side wall each have a first recess designed as a handle, wherein an upper inner flap is articulated on at least one of the side walls along a first folding edge. The invention further relates to a carton blank, the use of a carton blank and a method for producing a folding carton.Cuboidal folding cartons are generally known and are used, for example, as transfer cartons. The carton is often supplied as a prepared carton blank in the flat state to a user who builds up the folding carton therefrom. Many folding cartons used as transfer cartons exhibit weaknesses in practical use. For example, their stability and reliability are deficient, so that it is often necessary to reinforce the cardboard with additional aids such as adhesive tapes, metal clamps, cords or the like. A weak point is often, for example, the handles which can tear during the transport of the cartons or are damaged otherwise if the carton is heavily loaded. Even when stacking the folding cartons, the cartons are often damaged if one or more heavily loaded cartons are placed on a lid of a carton arranged beneath it. A rectangular folding carton is disclosed, for example, in EP 1 498 356 A2.U.S. Pat. No. 3,522,904 A shows a container for transporting animals with inner flaps which form horizontal support surfaces.U.S. Pat. No. 3,143,275 A shows a collapsible carton with handles which has horizontal support surfaces.AT 240 258 B discloses a container made of a one-piece blank, the side walls of which form one-piece support strips.It is an object of the invention to specify a cuboidal folding carton, a carton blank for producing a folding carton, the use of a carton blank and a method for producing a folding carton, with which damage during the carrying and stacking of the folding carton is intended to be avoided.The object is achieved by a cuboidal folding carton having a front wall and a rear wall which are connected to one another by a left side wall and a right side wall to form a wall surrounding an interior space, wherein the left side wall and the right side wall each have a first recess configured as a handle, wherein an upper inner flap is articulated along a first folding edge on at least one of the side walls, wherein the folding carton is further developed in that the inner flap comprises a second folding edge and a third folding edge, wherein a first portion of the inner flap extends between the first folding edge and the second folding edge, a second portion extends between the second folding edge and the third folding edge, and a third portion extends between the third folding edge and a free end of the inner flap, wherein, by bending the inner flap at the first bending edge, the first portion forms a support edge which extends at least approximately orthogonally to the at least one side wall, wherein the second portion is bent at the second bending edge by more than 90° relative to a cover plane into the interior space, wherein the folding carton comprises a second recess which is introduced into the inner flap at the height of the third bending edge.The three-section upper inner flap according to the invention significantly increases the stability of the folding carton in the region of the upper side walls. By the first section of the inner flap being designed as a support edge running approximately orthogonally to the side wall, the stackability of the folding carton is improved, since the weight force of the cartons arranged above it no longer acts only on the thin wall but also on the support edge. Since the second section of the inner flap is bent at the second bending edge by more than 90° into the interior space, the second section is deflected in the direction back to the side wall. Thus, in particular in cross section, a substantially triangular shape is formed, which is formed by the first section, the second section and the side wall. This triangular shape absorbs the forces acting on the supporting edge and thus increases the stability of the folding carton. Since forces acting from above on the folding carton are now no longer absorbed solely by the wall and thus the side walls, the stability of the side walls as such is increased. This also counteracts tearing of the handles provided in the side walls.A bending edge is in particular an embossing introduced along an edge into the material of the folding carton and / or targeted linear material weakening, at or by means of which bending or bending at this edge is facilitated.The first section runs at least approximately orthogonally to the at least one side wall. This means in particular that the first section encloses an angle between 75° and 105° with the at least one side wall. In other words, the first section is arranged in particular at an angle of between -15° and 15° with respect to the cover plane. The lid plane is in particular a plane which runs at least approximately through a lid of the folding carton when this lid is closed. In particular, the lid plane is orthogonal to the wall of the folding carton.The second section is in particular arranged non-parallel to the side wall. In particular, the second section and the side wall and / or the second section and the third section enclose an acute angle in cross section, which is open in the direction of the support edge. According to an embodiment, the first portion, the second portion and the side wall substantially form the shape of a right triangle in cross section.The inner flap is in particular hinged on the side of the side wall opposite a base of the folding carton. In other words, the inner flap is in particular articulated on an upper side of the side wall. Such an arrangement of the inner flap is expedient since in this way the stability of the folding carton is increased if further cartons are stacked from above onto the folding carton.The folding cardboard comprises in particular cardboard or consists of cardboard, furthermore in particular single- or multi-ply corrugated cardboard.Preferably, the inner flap is bent over at the third folding edge in such a way that the third section of the inner flap extends starting from the third folding edge in the direction of a base or a lid of the folding carton, wherein the third section bears in particular against the side wall or the second section.The third portion of the inner flap further stabilizes the folding carton. If the third section is bent in the direction of the bottom, it reinforces the handle in the side wall, since with the side wall and the third section there are two layers in the region of the handle. Thus, a lower region of the handle is also reinforced, which is advantageous, for example, if the carton is pulled on the handle with the palm pointing downward. If, on the other hand, the third section is bent in the direction of the cover, it reinforces the upper region of the side wall; in this region, three layers are now provided, namely the side wall, the third section and the second section.According to one embodiment, the inner flap is bent over at the third folding edge in such a way that the third section of the inner flap is arranged between the second section of the inner flap and that side wall to which the inner flap is articulated.Such an arrangement leads to a particularly good stabilization of the upper region of the side wall. In particular, the third bending edge comprises two separate bending lines, which are arranged in particular parallel to one another. In this way, the inner flap can be bent over at a wide angle at the third bending edge. The inner tab is bent over from the second section to the third section in particular at the third bending edge by more than 90°, in particular more than 120°, further in particular more than 150°.Preferably, the folding carton comprises two upper inner flaps, each hinged to one of the side walls.The two upper inner flaps each comprise in particular the features of the upper inner flap described above. In other words, one of the upper inner flaps described above is in each case articulated in particular on the left side wall and the right side wall.Preferably, the at least one side wall, on which the inner tab is articulated, comprises a handle tab, wherein the handle tab is articulated on an edge of the first recess and is bent into the interior space, such that the handle tab abuts the inner tab and forms a grip surface running at least approximately orthogonally to the wall, wherein the handle tab is in particular made of material which is cut out of the first recess.The grip surface provided by the handle tab bent into the interior space facilitates the carrying of the folding carton and prevents the side wall from tearing in the region of the handle. By the handle flap resting against the inner flap, the gripping surface is stabilized, so that damage to the folding carton during wear is avoided and comfort during wear is increased. In particular, the handle flap abuts the inner flap in the region of the third bending edge.The handle tab preferably has a widened front section which is connected to the edge of the first recess by means of a narrower connecting section, wherein in particular the connecting section forms the grip surface running at least approximately orthogonally to the wall, wherein in particular the front section abuts the second section of the inner tab. In particular, the handle strap has a substantially oval shape, wherein the connecting portion is formed in particular as a rectangular portion extending from the edge of the oval shape in the direction of the center of the handle strap.By forming the handle strap with a widened front section and a narrower connecting section, the stability of the grip surface is increased. By the front section resting against the second section, the holding comfort is further improved if the fingertips are encompassing the orthogonally running connecting section. In particular, a bending edge is provided between the edge of the first recess and the connecting portion and / or between the connecting portion and the front portion. This bending edge or bending edges facilitate bending of the handle strap at the edges provided for this purpose.The folding carton comprises a second recess which is introduced into the inner flap at the level of the third folding edge. In other words, the third folding edge runs in particular through a region of the inner tab which is cut out in order to form the second recess. Improved handling is achieved by the second recess, since during transport of the folding carton the hands can grasp through the first recess and the second recess and thus can hold the carton better. In particular, the handle tab abuts an edge of the second recess.A width of the second recess is preferably at least in sections smaller than a width of the front section of the handle tab. The second recess is bordered along its width in particular by two edges, which form a locking for the front section.By means of these two edges of the second recess, the front section of the handle tab is held in the interior of the folding carton. Since the front portion is wider than the portion of the second recess between the two edges, the front portion cannot slip between the two edges. The narrower connecting section, in contrast, is in particular narrower than the width of the second recess between the two edges. In particular, the connecting portion is passed through between the two edges and extends from the edge of the first recess in the direction of the interior space into the folding carton, where it is connected to the front portion.In particular, the front section comprises at least one, in particular two, support sections which support the front section on the second section of the inner link plate. The support section or sections are arranged in particular rearward on the front section. The front portion is additionally held in position by the support portion or portions. The two edges of the second recess are provided in particular in the longitudinal direction of the inner tab.In particular, the second cutout comprises a wide portion and a narrower portion. The two edges, the distance between which is smaller than the width of the front section, are provided in particular in the second section of the inner flap. The wide portion of the second cutout is provided in particular in the third portion of the inner tab.Preferably, a front lid flap is hinged to the front wall and a rear lid flap is hinged to the rear wall, said lid flap forming a lid of the interior space, which lid closes the interior space, wherein the lid rests on the first section of the inner flap, which section is formed as a supporting edge, when the lid is closed.The lid flaps form the lid which closes the interior of the folding carton. By the cover resting on the support edge, a force acting on the cover is dissipated via the support edge, so that damage to the wall is avoided. The front lid flap and / or the rear lid flap comprise in particular a first closure section and a second closure section, the free edges of which each run parallel to a lid folding edge, by means of which the lid flap is articulated on the front wall or the rear wall. The first closure section is in particular longer than the second closure section in the direction from the cover bending edge to its free end. Between the first closure section and the second closure section, in particular an incision is made. An edge of the cut on the side of the first closure section runs in particular orthogonally to the cover bending edge on the side of the second closure section, in particular bent. By this shaping of the lid flap or lid flaps, the lid can be closed easily and securely.Preferably, the second section is bent at the second bending edge between 90° and 180°, in particular between 95° and 120°, relative to the cover plane into the interior space.By bending the second section of the inner flap in this angular range, a triangular shape is formed in cross section from the first section, the second section and the side wall, which increases the stability of the folding carton. In particular, the second section and / or the third folding edge and / or the third section touches the side wall.Preferably, the first portion of the inner flap, which forms the supporting edge, has a length from the first folding edge to the second folding edge, which corresponds to 3% to 10% of a length of the front wall and / or of the rear wall.The length of the front wall or rear wall is the extension of this wall as viewed from the left side wall to the right side wall. The length of the first portion of the inner flap is the extension from the first folding edge to the second folding edge. In particular, the length of the first portion of the inner tab corresponds to 5% to 15% of a height of the left side wall and / or of the right side wall. The height of a side wall is the extension of this wall, as viewed from the bottom to the lid of the folding carton.Preferably, the third bending edge is arranged at the height of the handles.In other words, the length of the second section of the inner flap and a bending angle at the second bending edge are selected such that the third bending edge adjoins the first recess which is introduced into the side wall. When a hand passes through the first recess configured as a handle during the carrying of the folding carton, it simultaneously holds the inner flap, whereby the handle is stabilized and the wearing comfort is increased.Preferably, the third section of the inner link plate is supported at least in sections on the side wall on which the inner link plate is articulated.By the third section of the inner flap being supported on the side wall, the weight force acting on the supporting edge is transmitted laterally to the side wall via the second section and the third section, whereby the stability of the folding carton is further increased.The object is furthermore achieved by a carton blank for producing a folding carton according to one or more of the aforementioned embodiments.This carton blank is in particular configured such that the front wall, the rear wall and the right and left side walls are connected to one another. Starting from a flat folded state, the carton can be folded open very quickly by bringing the front or rear wall to the side walls into a 90° position. Subsequently, the one or more inner flaps may be folded to form the support edge or edges.In other words, the carton is designed such that neither a side wall has to be connected to the front or rear wall or vice versa before a usable folding carton is available by corresponding folding processes.Furthermore, the object is achieved by the use of a carton blank for producing a folding carton according to one or more of the aforementioned embodiments.Finally, the object is also achieved by a method for producing a folding carton according to one or more of the aforementioned embodiments, wherein in this method the front or rear wall is connected to the left or right side wall at a joint. For example, a joining process takes place by setting a tack connection or by producing an adhesive or embossed connection.The carton blank, its use and the method for producing the folding carton are subject to the same or similar advantages as already mentioned with regard to the cuboidal folding carton itself, so that repetitions should be dispensed with.Further features of the invention will become apparent from the description of embodiments of the invention taken in conjunction with the claims and the accompanying drawings. Embodiments according to the invention may fulfil individual features or a combination of several features.Within the scope of the invention, features which are marked "in particular" or "preferably" are to be understood as optional features.The invention is described below without limiting the general concept of the invention on the basis of exemplary embodiments with reference to the drawings, wherein reference is expressly made to the drawings with respect to all details according to the invention which are not explained in more detail in the text. The following are shown: FIG. 1 shows a schematically simplified perspective illustration of a folding carton with the lid open, FIG. 2 shows a schematically simplified perspective illustration of the folding carton with a semi-collapsed inner flap, FIG. 3 shows a schematically simplified perspective illustration of the folding carton with a bent inner flap which forms a supporting edge, FIG. 4 shows a schematically simplified perspective illustration of the folding carton with a bent-in inner flap and a bent-over handle flap, FIG. 5 shows a schematically simplified inner view of a side wall of a folding carton, FIG. 6 shows a schematically simplified sectional illustration through the folding carton according to a first embodiment, FIG. 7 shows a schematically simplified cross-sectional illustration through the folding carton according to the first embodiment along another section line, FIG. 8 shows a schematically simplified cross-sectional illustration through the folding carton according to a second embodiment, FIG. 9 shows a schematically simplified cross-sectional illustration through the folding carton according to the second embodiment along another section line, FIG. 10 is a schematically simplified top view of a carton blank.FIG. 1 shows a schematically simplified perspective illustration of a cuboidal folding carton 1, which is a folding carton, for example. The folding carton 1 comprises a base 2, which cannot be seen because of the selected perspective, a wall 9 and a lid 4. the wall 9 comprises a front wall 5, a right side wall 8, a rear wall and a left side wall, of which only the front wall 5 and the right side wall 8 are visible because of the perspective. The lid 4 comprises a front lid flap 40 and a rear lid flap 41, which are hinged to the front wall 5 and the rear wall by means of folding edges. The lid flaps 40, 41 can be folded and engage with each other to form the lid 4. In each of the right side wall 8 and the left side wall, a first recess 31 designed as a handle 30 is provided. In FIG. 1, a handle tab 33 is arranged in the first recess 31, which is hinged to an edge of the first recess 31 and can be folded over into an interior space of the folding carton 1.At an upper edge of the side walls 8, an inner flap 10 is hinged along a first folding edge 11. The inner flap 10 has a first section 21, a second section 22 and a third section 23, which are separated from one another by a second folding edge 12 and a third folding edge 13. At the level of the third folding edge 13, a second recess 24 is made in the inner tab 10, which extends from the second section 22 to the third section 23. The second recess 24 is wider in the region of the third section 23 than in the region of the second section 22, and the inner tab 10 is formed narrower at its free end by inclined surfaces than in the region of the second section 22 and the first section 21.FIGS. 1, 2, 3 to 4 show how the inner flap 10 can be folded or folded over in order to form a supporting edge 20 and to increase the stability of the folding carton 1, even in the region of the handle 30. In FIG. 2, the third section 23 of the inner flap 10 is folded over by approximately 180° along the third folding edge 13, so that it bears against the second section 22. In order to facilitate folding over in this angular range, the third folding edge 13 has in particular two separate folding lines, along which the inner flap 10 is bent by approximately 90°. The position of the third section 23 after bending is shown by dashed lines. By bending over the third section 23, two edges 25, 26 of the second recess 24 are formed on the upper side of the second section 22, which now forms an incision or a groove in the second section 22.In FIG. 3, the folding carton 1 is shown schematically in simplified form after the inner flap 10 has been bent away about the first bending edge 11 and the second bending edge 12 in the direction of the inner space 3. The first section 21 now runs substantially orthogonally to the wall 9 and thus forms the support edge 20. The second section 22 is bent along the second bending edge 12 by more than 90° with respect to the orthogonal line, so that it approaches the side wall 8. The course of the second section 22 and of the third section 23 are again shown in dashed lines. As a result of the bending, a bottom surface of the second recess 24, which is arranged between the two edges 25, 26, is now approximately at the height of an upper edge of the first recess 31.In FIG. 4, it is schematically shown in simplified form that the handle flap 33 is folded over inwards and abuts the inner flap 10 there. Specifically, in the embodiment shown, the handle tab 33 bears against the bottom surface of the second recess 24 and is gripped there by the two edges 25, 26. In addition, a widened front section of the handle strap 33 abuts the second section 22 of the inner strap. Since the handle flap 33 is fastened to an upper region of an edge 32 of the first recess 31, the handle flap 33 forms a grip surface which increases the wearing comfort and the stability when the folding carton 1 is worn by means of the handles 30.After the second inner flap 10 has also been folded in this way and the second handle flap 33 has been placed against the inner flap 10, the lid flaps 40, 41 can rest on the supporting edges 20 when the lid 4 is closed. In this way, the stability of the folding carton 1 is significantly increased by the supporting edges 20, for example if other cartons or articles are arranged on the folding carton 1. In addition, the bending of the inner flap 10 and the handle flap 33 supports the support edges 20 laterally on the side walls 8, whereby the stability of the folding carton 1 is further reinforced.FIG. 5 schematically shows, in simplified form, an inner view of the right side wall 8 after the inner flap 10 and the handle flap 33 have been folded as illustrated. As is readily visible in this view, the inner flap 10 is also somewhat narrower than the side wall 8 of the folding carton 1 in the region of the first section 21 and the second section 22, so that the inner flap 10 can be folded into the interior 3 of the folding carton 1 without problems. As illustrated, the first section 21 of the inner flap 10 forms the supporting edge 20, from which the second section 22 is bent away downward. The third section 23 is not visible in the selected view, since it lies behind the second section 22. The handle tab 33 is inserted inwardly through the first recess 31 and rests with a widened front section 35 against the second section 22 of the inner tab 10. The front portion 35 also has two rearward-directed support portions 37 which abut against the second portion 22. In this way, the front portion 35 of the handle tab 33 is locked. The front portion 35 is wider than the edges 25, 26 of the second recess 24 and is therefore retained by the edges 25, 26. In the illustration in FIG. 5, the edges 25, 26 are concealed by the front portion 35 and the support portions 37.FIGS. 6 and 7 show cross-sectional views through the folding carton 1 along the section lines 60 and 61 shown in FIG. 5 ; in the cross-sectional view through the section line 60 shown in FIG. 6, the section runs through a region lying on an edge of the inner flap 10 and not intersecting the handle 30. In this illustration, the substantially triangular shape formed by the side wall 8, the first section 21 and the second section 22 can be seen. Together, an acute-angled triangle with an angle β is defined between the right side wall 8 and the second section 22. It can also be clearly seen that the second section 22 is bent at the second bending edge 12 by an angle α with respect to its cover plane 42 which is greater than 90°. In the embodiment according to FIGS. 6 and 7, the first section 21 runs parallel to this lid plane 42. By bending over 90°, the second section 22 approaches the side wall 8 and creates the triangular shape, which increases the stability of the folding carton 1. The third section 23 with the free end 14 of the inner tab 10 abuts the side wall 8 in the embodiment shown.FIG. 7 shows, in a schematically simplified manner, the cross section along the section line 61 which runs centrally through the handle 30. In this illustration, it can be clearly seen how the handle flap 33 is folded over into the interior 3 and bears against the second portion 22 of the inner flap 10. In this region, the inner tab 10 has the second recess 24. The second recess 24 and the first recess 31 are shown in FIG. 7 with dashed lines. In this illustration, it can also be seen that the handle tab 33 comprises a connecting portion 36 which extends from the edge 32 of the first recess 31 to the front portion 35 and forms the grip surface 34. The connecting portion 36 is formed narrower than the front portion 35 so that it can be guided between the edges 25, 26 of the narrow portion of the second recess 24, while the front portion 35 with the support portions 37 abuts against the edges of the second recess 24.FIGS. 8 and 9 show schematically simplified cross-sectional views through a folding carton 1 according to a second embodiment, wherein the cutting lines are however guided along the same cutting planes as in FIGS. 6 and 7. The embodiment in FIG. 8 differs from the embodiment in FIG. 6 inter alia in that the first section 21 forming the support edge 20 does not run completely parallel to the lid plane 42 but is slightly bent into the interior space 3. The angle α with respect to the cover plane 42 is however also in this case greater than 90°. In addition, in FIG. 8, the third bending edge 13 is designed as a bending edge with two bending lines, so that the third section 23 can be bent by approximately 180° without problems with respect to the second section 22. As a result, the third section 23 bears against the side wall 8 only in a lower region. FIG. 9 also differs from FIG. 7 in that, in the embodiment according to FIG. 9, the connecting portion 36 which forms the grip surface 34 is also slightly inclined with respect to the orthogonal. Regardless of the embodiment chosen, however, a stable folding carton 1 is provided in both cases.According to a further embodiment, not shown, the third section 23 is bent downward at the third bending edge 13 in the direction of the base 2 in such a way that it runs at least approximately parallel to the side wall 8. The second recess 24 is arranged in this case substantially behind the first recess 31, in particular arranged in alignment therewith. This has the advantage that the third section 23 of the inner flap 10 now reinforces, in addition to the upper edge, also a lower edge of the handle 30, since with the side wall 8 and the third section 23, two layers are now located one above the other also in this region. It is precisely during a pulling of the folding carton 1 on the handle 30 that tearing of the handle 30 is prevented in this way.FIG. 10 shows, in a schematically simplified manner, a plan view of a carton blank 50 from which the folding carton 1 can be produced. In the view as a carton blank 50, in addition to the front wall 5 and the right side wall 8, the rear wall 6 and the left side wall 7 of the folding carton 1 can also be seen. By means of a joint 51, the rear wall 6 is connected, for example glued together, to the right side wall 8.The floor 2 is assembled from a front floor flap 70, a rear floor flap 71, a left floor closure flap 72 and a right floor closure flap 73. For this purpose, the bottom closure flaps 72, 73 each comprise two insertion tabs 76 which are inserted into slightly obliquely running insertion slots 75 in the bottom tabs 70, 71. In addition, an arcuate folding line 74 is provided in each of the bottom closure flaps 72, 73, by means of which folding line the insertion flaps 76 are pressed against the edges of the insertion slots 75. In this way, a particularly stable floor 2 is produced.In the drawings, identical or similar elements and / or parts are each provided with the same reference numerals, so that renewed presentation is omitted in each case.All features mentioned, including those taken alone from the drawings and also individual features which are disclosed in combination with other features, are considered to be essential to the invention alone and in combination. Embodiments according to the invention may be fulfilled by individual features or a combination of a plurality of features.List of reference characters1 Folding carton 2 Base 3 Interior 4 Lid 5 Front wall 6 Rear wall 7 Left side wall 8 Right side wall 9 Wall 10 Inner flap 11 First folding edge 12 Second folding edge 13 Third folding edge 14 Free end 20 Support edge 21 First section 22 Second section 23 Third section 24 Second recess 25, 26 Edge 30 Handle 31 First recess 32 Edge 33 Handle flap 34 Gripping surface 35 Front section 36 Connecting section 37 Support section 40 Front lid flap 41 Rear lid flap 42 Lid plane 50 Carton blank 51 Joint 60, 61 Cutting line 70 Front base flap 71 Rear base flap 72 Left base lid flap 73 Right base lid flap 74 Folding line 75 Insertion slot 76 Insertion flaps α Angle β Angle

Claims

A cuboidal folding carton (1) having a front wall (5) and a rear wall (6) which are connected to one another by a left side wall (7) and a right side wall (8) to form a wall (9) surrounding an interior space (3), wherein the left side wall (7) and the right side wall (8) each have a first recess (31) designed as a handle (30), wherein an upper inner flap (10) is articulated on at least one of the side walls (7, 8) along a first folding edge (11), characterized in that the inner flap (10) comprises a second folding edge (12) and a third folding edge (13), wherein a first portion (21) of the inner flap (10) extends between the first folding edge (11) and the second folding edge (12), a second portion (22) between the second bending edge (12) and the third bending edge (13) and a third portion (23) extends between the third bending edge (13) and a free end (14) of the inner flap (10), wherein by bending the inner flap (10) at the first bending edge (11) the first portion (21) forms a support edge (20) running at least approximately orthogonally to the at least one side wall (7, 8), wherein the second portion (22) at the second bending edge (12) is bent by more than 90° relative to a lid plane (42) into the inner space (3), wherein the folding carton (1) comprises a second recess (24) which is introduced into the inner flap (10) at the height of the third bending edge (13).Folding carton according to claim 1, characterised in that the inner flap (10) is bent over at the third folding edge (13) in such a way that the third section (23) of the inner flap (10) extends starting from the third folding edge (13) in the direction of a base (2) or a lid (4) of the folding carton (1), wherein the third section (23) bears in particular against the side wall (7, 8) or the second section (22).Folding carton according to claim 1 or 2, characterised in that the inner flap (10) is bent over at the third folding edge (13) in such a way that the third section (23) of the inner flap (10) is arranged between the second section (22) of the inner flap (10) and that side wall (7, 8) to which the inner flap (10) is articulated.Folding carton (1) according to one of claims 1 to 3, comprising two upper inner flaps (10), each hinged to one of the side walls (7, 8).Folding carton (1) according to one of claims 1 to 4, characterised in that the at least one side wall (7, 8) to which the inner flap (10) is articulated comprises a handle flap (33), wherein the handle flap (33) is articulated on an edge (32) of the first recess (31) and is bent into the interior space (3), so that the handle flap (33) abuts the inner flap (10) and forms a grip surface (34) running at least approximately orthogonally to the wall (9), wherein the handle flap (33) in particular consists of material which is cut out from the first recess (31).Folding carton (1) according to claim 5, characterised in that the handle flap (33) has a widened front section (35) which is connected to the edge (32) of the first recess (31) by means of a narrower connecting section (36), wherein in particular the connecting section (36) forms the grip surface (34) running at least approximately orthogonally to the wall (9), wherein in particular the front section (35) abuts the second section (22) of the inner flap (10).Folding carton (1) according to claim 6, characterised in that a width of the second recess (24) is at least in sections smaller than a width of the front section (35) of the handle flap (33).Folding carton (1) according to one of claims 1 to 7, characterised in that a front lid flap (40) is hinged to the front wall (5) and a rear lid flap (41) is hinged to the rear wall (6), said lid flaps forming a lid (4) of the interior space (3) which closes the interior space (3), wherein the lid (4) rests on the first section (21) of the inner flap (10), which section is formed as a supporting edge (20), when the lid (4) is closed.Folding carton (1) according to one of claims 1 to 8, characterised in that the first folding edge (11) runs parallel to the second folding edge (12) and / or the first folding edge (11) runs parallel to the third folding edge (13) and / or the second folding edge (12) runs parallel to the third folding edge (13), wherein in particular the first folding edge (11) and / or the second folding edge (12) and / or the third folding edge (13) run parallel to the side walls (7, 8) and a base (2) of the folding carton.Folding carton (1) according to one of claims 1 to 9, characterised in that the second section (22) is bent at the second bending edge (12) between 90° and 180°, in particular between 95° and 120°, relative to the lid plane (42) into the interior space (3).Folding carton (1) according to one of claims 1 to 10, characterised in that the first section (21) of the inner flap (10), which forms the supporting edge (20), has a length from the first folding edge (11) to the second folding edge (12), which corresponds to 3% to 10% of a length of the front wall (5) and / or of the rear wall (6).Folding carton (1) according to one of claims 1 to 11, characterised in that the third folding edge (13) is arranged at the height of the handles (30).Folding carton (1) according to one of claims 1 to 12, characterised in that the third section (23) of the inner flap (10) is supported at least in sections on the side wall (7, 8) on which the inner flap (10) is articulated.Cardboard blank (50) for producing a folding carton (1) according to one of Claims 1 to 13.Use of a carton blank (50) for producing a folding carton (1) according to one of claims 1 to 13.Method for producing a folding carton (1) according to one of Claims 1 to 13, in which the front or rear wall (5, 6) is connected to the left or right side wall (7, 8) at a joint (51).

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