CN111216995A

CN111216995A - Folding cut-parts and transport cardboard box folded therefrom

Info

Publication number: CN111216995A
Application number: CN201911168423.3A
Authority: CN
Inventors: 亚历克斯·黑塞尔; 斯特芬·泰斯
Original assignee: Coburg Carton Manufacturing Co Ltd
Current assignee: Coburg Carton Manufacturing Co Ltd
Priority date: 2017-11-24
Filing date: 2019-11-25
Publication date: 2020-06-02
Also published as: EA201992539A2; EA201992539A3; EP3489161A2; EP3489161A3; EP3489161B1; US20200180810A1; EA038735B1; DE202017006084U1

Abstract

The invention relates to a one-piece folded cut piece, in a square cover plate having a square cutout rotated by 45 ° relative to the square shape of the cover plate. The square cut-out is arranged concentrically with the convex octagonal groove line and cutting line configuration. In this case, the groove lines and the cutting lines are each alternated in such a way that the cutting lines are parallel to the outer edge of the cover plate and the groove lines are parallel to the outer edge of the square cut. The movable lid is separated from the cut-out perpendicularly to the cut-out from the center of the cut-out until the corresponding corner of the square cut-out located inside is introduced into the cover plate. Alternatively, the movable lid main separating slit is introduced into the lid plate from the respective corner portion of the square cut-out portion located inside in the direction of the center of the respectively opposing cutting lines and perpendicularly to the cutting lines.

Description

Folding cut-parts and transport cardboard box folded therefrom

Technical Field

The present invention relates to a folded panel, in particular a one-piece, flat folded panel made of corrugated cardboard, paperboard or similar cellulose-or natural fiber-based packaging material, and a transport carton which can be folded from the folded panel, for example for intermediate packaging of confectionery products such as cake (torrete) or cake.

Background

Confectionery products such as for example a cream cake or a waffle cake (eisport) are usually provided in deep-cooled form at retail outlets. For this purpose, it is necessary to choose a type of packaging in which the confectionery products are well protected from damage caused by transport. Folded cardboard, such as disclosed for example in DE 8007232U 1, is in principle well suited for such packages, but generally does not have the necessary mechanical stability.

Other packaging types, for example made of expanded or expanded polystyrene, as exemplarily shown in DE 8018011U 1, cannot be transported and stored in a space-saving manner. Further disadvantages are poor environmental compatibility, low sustainability of the resources used to manufacture these packages, and cumbersome clean-up at the consumer site.

The solutions hitherto produced from cardboard are, for example, shape-stable cake packs having a bottom section and a lid section, which are connected by a connecting web section (Stegabschnitt), as disclosed, for example, in DE 202017102150U 1, and a separate cardboard sleeve as a cake receptacle. However, for manufacturing reasons, such cake packages are multi-piece and therefore complicated to assemble. However, other packages consisting of one-piece cut pieces-such as disclosed for example in US 2,189,151 a or US 5,368,225 a-are inherently unstable and do not adequately protect the confectionery article transported therein from slipping and damage.

There is therefore a need for a feasible solution for manufacturing a transport carton, which enables an efficient manufacturing process from one piece folded cut pieces. Furthermore, there is a need for shipping carton boxes with high mechanical shipping stability.

Disclosure of Invention

According to the invention, an important idea is to use a one-piece folded cut piece, for example made of cardboard or corrugated cardboard (Wellpappe), which in a square cover panel has a square cut rotated 45 ° with respect to the square shape of the cover panel. The square cut is arranged concentrically with the convex octagonal flute line (Rilllinie) and cutting line configuration. In this case, the groove lines and the cutting lines are each alternated in such a way that the cutting lines are parallel to the outer edge of the cover plate and the groove lines are parallel to the outer edge of the square cut.

In a first possible embodiment of the invention, a flap separating cut (klapptrennschnitt) is introduced into the cover plate from the center of the cutting line, in each case perpendicularly to the cutting line, up to the respective corner of the inner square cutout.

In a second possible embodiment of the invention, the movable lid main separating slit is introduced into the cover plate from the respective corner of the square cutout located on the inside in the direction of the center of the respectively opposite cutting line and perpendicularly thereto. The movable-lid main separating slit branches into two movable-lid clearance separating slits (Klapppeneistellungstenschnitt) at a branch point along a section between a respective corner portion of the inner square cut portion and a center of the respectively opposing cutting line, the movable-lid clearance separating slits extending from the branch point to the respective cutting line symmetrically to each other with respect to an axis of the movable-lid main separating slit.

In principle, in both possible embodiments, the cutting line and the flap separation cut or the flap main separation cut and the flap clearance separation cut enable a separation of the inner wall flap between the square cut and the octagonal groove line and cutting line structure, which remains articulated on the cover plate via the groove line when the folded cut is folded and forms the octagonal inner recess underneath the cover plate, folding down there.

Thus, together with the four side walls hinged via the outer groove lines outside the outer edge of the square cover plate, the inner wall flap defines an octagonal inner wall structure which can accommodate round products to be packaged, such as cake cakes or cakes, considerably better than a square inner wall structure.

In a first possible embodiment of the invention, the inner wall flap has a scoring line (Ritzlinie) at the corner defined by the cutting line and the flap separation cut, on which the respective inner wall flap can be turned (umschlagen). In this way, a plug tab can be formed on the vertical inner wall flap edge, which plug tab can be brought into engagement with a plug opening or a plug tab receptacle of a size and position in the side wall of the folded cut segment during folding. The inwardly turned corner of the inner wall flap forms on the one hand a mechanical reinforcement of the inner wall flap on the plug contact, but on the other hand contributes to an increase in the material thickness on the plug contact receptacle.

In a second possible embodiment of the invention, it can therefore be advantageous if in the first possible embodiment the corner sections to be respectively turned inwards are omitted from the beginning. To this end, the two movable lid clearance separation cuts form, together with the section of the cutting line between their intersection points with the cutting line, a substantially triangular recess. The material in the folded cut pieces which is omitted by the recess enables a direct snap-fit of the inner wall flap with a corresponding snap-fit receptacle in the side wall or with an intermediate wall flap arranged in front in the side wall.

In any case, the one-piece folded cut segment thus provides a high mechanical stability in the folded state with respect to torsion, shear loads, shear forces or pressure forces, since the side walls are already stably connected to the cover plate by the side bending lines and the inner wall flap fixes the two adjacent side walls in their orientation relative to one another by the plug-in tab connection. The one-piece folded cut piece according to the invention provides here the significant advantage that an adhesive connection is not necessarily required in order to hold the folded transport carton in shape.

Drawings

The invention will be described in more detail hereinafter with reference to exemplary embodiments thereof and illustrated in the accompanying drawings.

The attached drawings serve to better understand the invention and to illustrate exemplary embodiment variants thereof. They are used to explain principles, advantages, technical effects and alternatives. Of course, other embodiments of the invention and many of the intended advantages are also contemplated, especially in light of the detailed description of the invention set forth below. The elements in the drawings are not necessarily to scale and have been partially simplified or schematically shown for visibility reasons. The same reference numerals are used herein to designate the same or similar components or elements.

Fig. 1 shows a schematic view of a folded panel according to an embodiment.

Fig. 2 shows a perspective bottom view of a transport carton folded from the folded cut pieces according to fig. 1.

Figure 3 shows a perspective top view of a transport carton folded from folded panels according to figure 1.

Figure 4 shows a detail of one corner portion of a transport carton folded from the folded cut pieces according to figure 1.

Fig. 5 shows a schematic view of a folded panel according to another embodiment.

Fig. 6 shows a schematic view of a folded panel according to another embodiment.

Fig. 7 shows a schematic view of a folded panel according to another embodiment.

Fig. 8 shows a schematic view of a folded panel according to another embodiment.

Fig. 9 shows a schematic view of a folded panel according to another embodiment.

Fig. 10 shows a schematic view of a folded panel according to another embodiment.

Fig. 11 shows a schematic view of a folded panel according to another embodiment.

Fig. 12 shows a schematic view of a folded panel according to another embodiment.

Fig. 13 shows a schematic view of a folded panel according to another embodiment.

Fig. 14 shows a schematic view of a folded panel according to another embodiment.

Figure 15 shows a schematic view of a folded panel according to another embodiment.

Fig. 16 shows a schematic view of a folded panel according to another embodiment.

Fig. 17 shows a schematic view of a folded panel according to another embodiment.

Fig. 18 shows a schematic view of a folded panel according to another embodiment.

Fig. 19 shows a schematic view of a folded panel according to another embodiment.

Fig. 20 shows a schematic view of a folded panel according to another embodiment.

Fig. 21 shows a schematic view of a folded panel according to another embodiment.

Fig. 22 shows a schematic view of a folded panel according to another embodiment.

Fig. 23 shows a schematic view of a folded panel according to another embodiment.

Figure 24 shows a perspective bottom view of a transport carton folded from the folded panels according to figure 23.

List of reference numerals

A1, a 4-groove line region; a11, a 42-plug tab receiving portion; a5, A8-plug tab receiving portion; AB1, AB4 — removable cover receptacle; AL1, AL 4-plug tab receptacle; b1, B4-side wall tabs/intermediate wall flaps; b12, B34-a movable cover of the middle wall; c1, C4-inner flip reinforcement; d-a cover plate; DB-baseboard; d-projection width; d1.. D4-side wall bending line; e1, E4-side wall reinforcement; e5, E8-sidewall plug-in tabs; e9, E12-sidewall corner reinforcements; f11, F42-plug-in tab; FL1, FL 4-mating plug-in tabs; g11, 9, G42-movable cover leaving a hollow separation cut; h1.., H4 — movable lid main separation incision; l1, L4-inner wall movable cover; LB1, LB4 — inner wall flap stiffener; LT1,.., LT 4-removable lid separation cut; m1, M4-sidewall tab bend lines; o1, O4-inner wall movable cover bending line; a P-bifurcation point; PK-shipping carton; q11, Q34-mid-wall removable cover section; q-an internal cut; QB-bottom plate cutting part; r1, R4-inner wall movable cover scratch line combination; s1, S4-side wall; t1,.., T4-cut line; u1, U8-double groove line; z-fold the cut pieces.

Although specific embodiments have been illustrated and described herein, it will be appreciated by those of ordinary skill in the art that a variety of other alternate and/or equivalent implementations may be selected for the embodiments without substantially departing from the basic concepts of the present invention. In general, all changes, modifications and variations of the exemplary embodiments described herein are also to be considered covered by the present invention.

Detailed Description

The folded panels shown below are each of one piece, that is to say they are produced from a continuous piece of panel material by cutting out the outer edge and forming a recess or cutout (ausstanzong) in the inner region of the panel material. The cut pieces material may here comprise, for example, corrugated cardboard, paperboard or similar cellulose-based materials of different corrugation types (a-, B-, C-, D-, E-, F-, G-, N-corrugation or combinations thereof), like for example composite paper with or without plastic coating.

In order in particular to avoid sticking on the inside of the transport carton of food, like for example ice cake, cake and similar confectionery products, which is held in a transport carton made of one of the folded cut pieces shown below, the individual, internally located folded cut piece elements, such as for example tabs, removable covers or side walls, are provided on one side (or also on both sides) with a grease-and/or moisture-impermeable coating or barrier, like for example a PE coating.

The fold lines in the sense of the present invention are all pre-embossed target fold lines or groove lines in the cut piece material along which folds are provided in the cut piece material for the subsequent three-dimensional manufacture of the transport carton. A cut in the sense of the present invention is here an opening cut, punched out or otherwise introduced into the cut piece material, which is completely surrounded by the cut piece material in the plane of the folded cut piece. In particular, a cut in the sense of the present invention may be an elongated opening with a width of about 1 to 2 cm, which may extend over an opening slot of 1 to several tens of cm. Such a cut portion may be formed by blanking cut pieces of material and have a gradually tapering or rounded blanking end portion at the starting and ending points.

Score lines in the sense of the present invention are all the target fold lines at which the cut piece material is cut to a portion of its thickness, for example two thirds of the thickness. Along such score lines, the panel material may be folded under less tension than the full thickness panel material, such as, for example, over a score line.

Figure 1 shows a schematic view of an unfolded folded panel Z in a top view in the plane of the folded panel. The shown folded panel Z is here generally flat. The outer contours of the entire folded panel Z each include cut edges from which the folded panel Z is cut out of the larger layer of panel material — the inner edges shown (in addition to the contour of the inner cut Q, which will be explained below) are typically respectively a crease or a score line along which the subsequent folds of the folded panel Z are arranged.

The folded panel Z generally comprises a cover panel D as central panel element which, in the folded or unfolded (afstein) state of the folded panel Z, defines the upper lying flat plane of the formed transport carton. The lid plate D has a square outer contour and has an inner cutout portion Q in its interior, which has the shape of a square located on the tip with respect to the square outer contour of the lid plate D. The inner cut-out Q defines the lower edge of the inner wall flaps L1 to L4 formed by the respective portions of the lid panel D.

In the example of fig. 1, the cover panel D of the folded panel Z comprises two side wall bending lines D1 and D2 (on the left and right in fig. 1) and two side wall bending lines D3 and D4 (below and above in fig. 1), two side walls S1 and S2 are hinged on the side wall bending lines D1 and D2, respectively, and two side walls S3 and S4 are hinged on the side wall bending lines D3 and D4, respectively. To fold the transport carton PK the side walls S1 to S4 are folded 90 ° downwards (in fig. 1 towards the drawing plane) from the folded cut pieces around the side wall fold lines D1 to D4 with respect to the cover panel D.

The side wall tabs B1 to B4 are respectively hinged on the end sides of the side walls S1 and S2 via side wall tab bending lines M1 to M4. The side wall tabs B1 to B4 may be embodied with chamfered inner edges and with a slightly reduced width relative to the width of the side walls S1 and S2, respectively. After unfolding the side walls S1 to S2, the side wall tabs B1 to B4 can lie (auflegen) inward on the inner side of the side wall S3 or S4 turned downward and there adhere to the inner side of the side wall S3 or S4. For this purpose, it can be advantageous if the side walls S3 and S4 are each provided at the end-side end sections with double groove lines U1 to U4 running diagonally with respect to the width of the side walls S3 and S4, on which the edges of the side walls S3 and S4 can be reinforced in a double-walled manner by folding the formed side wall reinforcements E1 to E4 onto the inner sides of the side walls S3 and S4. The respective sidewall tabs B1-B4 may then be bonded to the inwardly turned sidewall reinforcements E1-E4. It should be clear here that the double groove lines U1 to U4 do not necessarily have to be provided, and that the corresponding side wall tabs B1 to B4 can also be glued, adhered or plugged to the single-walled side walls S3 and S4. In a further alternative, simple groove lines U1 to U4 can also be provided.

In some variants, a slot may also be left between the two score lines forming the respective double score lines U1 to U4, so that the side wall tabs B1 to B4 do not have to be glued to the inner sides of the side walls S3 and S4, but may instead be inserted into the slot left between the double score lines U1 to U4. In this way, the complex bonding of the side wall webs B1 to B4 can be dispensed with, at the expense of the mechanical stability of the side wall structure.

The inner cut-out Q in the lid D is arranged concentrically with a sequence of convex octagons (Sequenz) made up of mutually adjoining cutting lines T1 to T4 and groove lines O1 to O4. Here, the cutting lines T1 to T4 are respectively parallel to the side wall bending lines D1 to D4. Between the ends of each two adjacent cutting lines T1 to T4, each of the score lines O1 to O4 extends at an angle of 45 ° thereto. By making the lengths of the cut lines T1 to T4 respectively equal and the lengths of the groove lines O1 to O4 also respectively equal, the sequence of cut lines T1 to T4 and groove lines O1 to O4 thus forms an octagon of double symmetry. Due to this double symmetry, the groove lines O1 to O4 are parallel to the edge of the inner cut Q.

Finally, the inner wall movable lids L1 to L4 formed by portions of the inner area of the lid panel D are separated from each other by movable lid separation notches LT1 to LT 4. Here, the flap separation cuts LT1 to LT4 each extend perpendicularly to the cutting line from the center of one of the cutting lines T1 to T4 up to one of the corner points of the inner cutout Q. The inner wall flaps L1 to L4 thus have a convex hexagonal outer contour which is formed by the inner edge of the inner cutout Q, one of the groove lines O1 to O4, two of the flap separation notches LT1 to LT4 and the corresponding half of two of the cutting lines T1 to T4, respectively. By leaving the inner wall flaps L1 to L4 free at all edges of their outer contour, except for the edges formed by the respective one of the groove lines O1 to O4, the inner wall flaps L1 to L4 can be tilted into the drawing plane of fig. 1 relative to the cover plane of the cover D.

In addition to leaving the inner wall flaps L1 to L4 empty along a part of the outer contour of the inner wall flaps L1 to L4, the plug tabs F11 to F42 are diagonally left empty by corner portions of the inner wall flaps L1 to L4 formed by the flap separation notches LT1 to LT4 and the cut lines T1 to T4. This is achieved in that the cut-outs of the web sections are made on the corner sections approximately in the middle of the diagonal connection and the diagonal connections on the edge side are provided with bending lines. As a result, the respective corner can be bent inward or outward in a substantially triangular manner, whereby the respective plug-in tab F11 to F42 can freely project outward. The plug tab F11 is formed, for example, by blanking in the middle of the diagonal connection between the cut line T1 and the movable lid separation slit LT 1. The remaining plug tabs F12 to F42 are formed in a corresponding manner. The plug tabs F11 to F42 are substantially rectangular in shape and can be designed with rounded or chamfered corners, if appropriate.

The plug tabs F11 to F42 serve to fasten the inner wall flaps L1 to L4 to the side walls S1 to S4, which are likewise bent downward. For this purpose, the two plug-in tab receptacles a11 to a42 are each inserted in the side walls S1 to S4 in a corresponding manner in terms of shape and position into the side walls S1 to S4 as cutouts. As shown in greater detail in fig. 4, the respective corners of the inner wall flaps L1 to L4 can be folded back, i.e. in the direction of the closer corner of the finished transport carton PK, so that the plug tab (in fig. 4, for example, the plug tab F31) can engage with the plug tab receptacle (in fig. 4, for example, the plug tab receptacle a 31).

Even though the corner portions of the inner wall flaps L1 to L4, which are turned back, are shown in fig. 2 to 4, respectively, the corner portions of the inner wall flaps L1 to L4 may be turned back forward, that is, toward the inside of the formed octagonal inner space. Although no smooth or planar faces pointing inward to the inner space are thereby produced on the inner side of the side walls S1 to S4; however, the angle at which the corner portions of the inner wall flaps L1 to L4 must be folded is no longer 135 °, as shown in the examples in fig. 2 to 4, but is still only 45 °. The material load on the bending line can thereby be reduced at the expense of the smoothness of the inner side of the transport carton PK.

Fig. 4 shows a detail view from below into one corner of the transport carton PK. As shown, the corner portions of the transport carton PK are covered upwardly by a portion of the cover D. The respective central regions along the side walls S1 to S4 are covered by a narrow web of material of the cover D, the thickness D of which can be between 0.5mm and 3.0cm, depending on the size of the cut. The thickness D is determined by the distance between the cutting lines T1-T4 and the side wall bending lines D1-D4.

Fig. 2 and 3 show an example view of how the inner wall flaps L1 to L4 fold down to form an octagonal interior recess in the cover panel D and are locked in the side walls S1 to S4 by the plug tab receptacles a11 to a42 via the plug tabs F11 to F42. The exemplary view in fig. 2 shows a perspective bottom view of a transport carton PK folded from a one-piece folded panel Z according to fig. 1. The exemplary view in fig. 3 shows a perspective view from above of a transport carton PK folded from a one-piece folded cut segment Z according to fig. 1.

After leaving the recess, the plug-in tabs F11 to F42 are folded back at an angle of 45 ° by the respective corners of the inner wall flaps L1 to L4 and are guided through the corresponding plug-in tab receptacles a11 to a 42. Thereby, a mechanical stability of the entire transport carton PK is created along the plane of the inner wall flaps L1 to L4 not only in the vertical direction but also in the diagonal direction, which mechanical stability is resistant to undesired shearing along the two directions of extension of the side walls. In addition to this, the inner wall flaps L1 to L4 are each locked at an angle of 45 ° relative to the side walls and may provide better protection against slipping for the substantially circular confectionery products contained in the transport carton PK.

Further possible variants of the folded panels Z are described below with reference to the schematic drawings of figures 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19 and 20. All these figures show the unfolded folded panel Z in a top view in the plane of the folded panel. The shown folded panel Z is here in all cases generally flat. In all cases, the outer contour of the entire folded cut segment Z comprises the respective cut edge from which the folded cut segment Z is cut out of a larger layer of cut segment material — the inner edge shown (except for the contour of the inner cut Q explained further below and, if necessary, the cover-side join of the inner wall flaps L1 to L4)

Outside the substantially triangular recesses in between) are typically respectively bending or grooving lines along which the subsequent bending of the folded panel Z is arranged.

For each of the folded panels Z of fig. 5 to 15 and 19, the inner wall flaps L1 to L4 can be folded down to form an octagonal or substantially octagonal inner void in the cover panel D and be locked by corresponding plug tabs with the plug tab receptacles a11 to a42 placed in or on the side walls S1 to S4, respectively. Here, each of the one-piece folded panels Z of fig. 5 to 15 and 19 may be used as a base for erecting the transport carton PK (Aufrichtung). For each of the folded panels Z of fig. 16 to 18 and 20, the inner wall flaps L1 to L4 may also be folded down to form an octagonal or substantially octagonal internal void in the cover panel D. However, for these fold panels Z, other fixing options of the inner wall flaps L1 to L4 may be selected, for example, fixing in the bottom panel via a plug tab accommodation in the respective counterpart wall flap or fixing in the bottom panel via adhesion with the respective counterpart wall flap.

The folded panels Z of figures 5 to 20 have in common that they generally comprise a cover panel D as central panel element which, in the folded or unfolded state of the folded panel Z, defines the flat plane of the formed transport carton lying on top. The lid plate D has a square outer contour and has an inner cutout portion Q in its interior, which has the shape of a square located on the tip with respect to the square outer contour of the lid plate D. The inner cut-out Q defines the lower edge of the inner wall flaps L1 to L4 formed by the respective portions of the lid panel D.

The cover panel D of the folded panel Z comprises, in the example of fig. 5 to 20, two side wall bending lines D1 and D2 (above and below, respectively, in fig. 5 to 15 and 19; similarly, but not explicitly shown, in fig. 16, 17, 18 and 20) and two side wall bending lines D3 and D4 (left and right, respectively, in fig. 5 to 15 and 19; similarly, but not explicitly shown, in fig. 16, 17, 18 and 20), two side walls S1 and S2 are hinged to said side wall bending lines D1 and D2, respectively, and two side walls S3 and S4 are hinged to said side wall bending lines D3 and D4, respectively. The side walls S1 to S4 are folded in order to fold the transport carton PK from the folded panels by 90 ° downwards (in fig. 5 to 20 towards the plane of the drawing) relative to the cover panel D around the side wall fold lines D1 to D4.

Intermediate wall webs B1 to B4 are respectively articulated on the end sides of the side walls S1 and S2 via side wall web folding lines M1 to M4. The intermediate wall webs B1 to B4 may be embodied with chamfered inner edges and with a slightly reduced width in relation to the width of the side walls S1 and S2, respectively. Intermediate wall webs B1 to B4 can lie inward after unfolding of side walls S1 to S2 on the inside of side wall S3 or S4 turned downward and can adhere there to the inside of side wall S3 or S4. For this purpose, it can be advantageous if the side walls S3 and S4 are each provided at the end-side end sections with double groove lines U1 to U4 running diagonally with respect to the width of the side walls S3 and S4, on which the edges of the side walls S3 and S4 can be reinforced in a double-walled manner by folding the formed side wall reinforcements E1 to E4 onto the inner sides of the side walls S3 and S4. The respective intermediate wall tabs B1-B4 may then be bonded to the inwardly turned sidewall reinforcements E1-E4. It should be clear here that the double groove lines U1 to U4 need not necessarily be provided, and that the respective intermediate wall tabs B1 to B4 can also be glued, adhered or plugged to the single-walled side walls S3 and S4. In a further alternative, simple groove lines U1 to U4 can also be provided.

In addition, intermediate wall webs B12 or B34 are respectively articulated at the edges of the side walls S1 and S2 opposite the respective side wall fold lines D1 or D2, which, likewise after unfolding of the side walls S1 to S2, lie inward on the inner side of the downwardly turned side walls S1 or S2 and are bonded there to the inner side of the side walls S1 or S2, as a result of which a smooth structure without functional elements running through is obtained on the outer side of all side walls S1 to S4, which structure on the one hand gives the user a more aesthetically pleasing impression and on the other hand can also slide more easily and without friction in the outer cardboard folded over (ü ber ü lpen) around the transport cardboard box PK erected from the folded cut pieces Z (aufricten), in other words with the intermediate wall webs B1 to B4 and B12 and B34, all the mechanical folding and folding of the intermediate walls PK required for fastening together can be seen from the interior of the transport cardboard box PK.

In some variants, it is also possible to leave a slot between the two score lines forming the respective double score lines U1 to U4, so that the intermediate wall tabs B1 to B4 do not have to be glued to the inner sides of the side walls S3 and S4, but can instead be inserted into the slot left between the double score lines U1 to U4. In this way, the complex bonding of the side wall webs B1 to B4 can be dispensed with, at the expense of the mechanical stability of the side wall structure.

The inner cut Q in the cover D is arranged concentrically with the substantially convex octagonal sequence of mutually adjoining cutting lines T1 to T4 and flute lines O1 to O4. Here, the cutting lines T1 to T4 are substantially parallel to the side wall bending lines D1 to D4, respectively. In particular, the cutting lines T1 to T4 may have a slightly curved or convexly curved trend, so that the sequence of octagons produced better approximates the circular outer shape. Between the ends of each two adjacent cutting lines T1 to T4, each of the score lines O1 to O4 extends at an angle of 45 ° thereto. By making the lengths of the cut lines T1 to T4 respectively equal, and the lengths of the groove lines O1 to O4 also respectively equal, the sequence of cut lines T1 to T4 and groove lines O1 to O4 forms an octagon of double symmetry. Due to this double symmetry, the groove lines O1 to O4 are parallel to the edge of the inner cut Q.

Finally, the inner wall flaps L1 to L4 formed by portions of the inner area of the lid panel D are separated from each other by a combination of separation slits. Here, first, the movable lid main separation slits HT1 to HT4 extend from one of corner points of the inner cutout portion Q in the direction of the centers of the cutting lines T1 to T4 which are respectively opposed. The movable lid main separation slits HT1 to HT4 are introduced into the lid panel D perpendicularly to the cutting line. The movable lid main separation cuts HT1 to HT4 respectively terminate at a branch point P at a position along a section between the respective corner portions of the inner cutout portion Q and the centers of the respectively opposed cutting lines T1 to T4.

Then, two of the total eight flap clearance separation slits G11 to G42 branch off from the bifurcation point P, respectively. In this case, flap clearance separation notches G11 to G42 are connected to flap main separation notches HT1 to HT4 and extend symmetrically to one another with respect to the axis of the associated flap main separation notches HT1 to HT4 from bifurcation point P as far as respective cutting lines T1 to T4. A generally triangular cutout is thereby left between two of the flap clearance cutouts G11 to G42 and the respective cutting lines T1 to T4, so that the inner wall flaps L1 to L4 thus have a convex octagonal outer contour which is formed by the inner edge of the inner cutout Q, one of the groove lines O1 to O4, two of the flap main separation cutouts HT1 to HT4, two of the flap clearance cutouts G11 to G42 and the respective half of two of the cutting lines T1 to T4, respectively. By leaving the inner wall flaps L1 to L4 free at all edges of their outer contour, except for the edges formed by the respective one of the groove lines O1 to O4, the inner wall flaps L1 to L4 can be tilted into the drawing planes of fig. 5 to 20 relative to the cover plane of the cover D.

By leaving the inner wall flaps L1 to L4 free from one another by the triangular cut-out, it is no longer necessary to fold over the corner portions, as in the variant of fig. 1, in order to form the plug-in tabs F11 to F42 along the flap cut-out cutouts G11 to G42. Instead, it suffices to use the entire length of the flap clearance cut G11 to G42 as a plug tab (as shown in the configuration in fig. 14, for example), or to make the plug tabs F11 to F42 for the inner wall flaps L1 to L4 along the 8 flap clearance cuts G11 to G42, respectively, empty between the bifurcation point P and the corresponding cut lines T1 to T4 (as shown in the configuration in fig. 5 to 13 and 19, for example). This can be achieved, for example, by the fact that the already empty plug-in tabs F11 to F42 are hinged to the inner wall flaps L1 to L4 via a straight connection between the branching point P and the groove line following the respective cutting lines T1 to T4. However, it is also possible to implement very simply by selecting the shape of the cover cutouts G11 to G42 such that the plug-in tabs are formed by suitable punching of the cover cutouts G11 to G42. For example, the plug tab F11 can be formed by a corresponding blanking in the middle of the connection between the cutting line T1 and the bifurcation point P. The remaining plug tabs F12 to F42 are formed in a corresponding manner. The plug tabs F11 to F42 are substantially rectangular in shape and can be designed with rounded or chamfered corners, if appropriate. Furthermore, the plug-in tabs F11 to F42 can be connected directly to the branching point P (as in fig. 5 and 13, for example) or can be formed in the middle along the course of the free separation notches G11 to G42 (as in fig. 6 to 11 and 19, for example).

The plug-in tabs F11 to F42 serve to fasten the inner wall flaps L1 to L4 to the side walls S1 to S4, which are likewise bent downward. For this purpose, in each of the intermediate wall flaps B1 to B4 or B12 and B34, two plug-in tab receptacles a11 to a42 are each inserted in a corresponding manner in form and position as cutouts. As shown in fig. 5 to 14 with a higher level of detail, the shape, size, positioning and number of such plug tab receptacles a11 to a42 may vary, as explained in further detail below. In any case, the plug tab (e.g., plug tab F31) can be brought into engagement with the corresponding plug tab receptacle (e.g., plug tab receptacle a 31).

The plug tabs F11 to F42 can be guided through the associated plug tab receptacles a11 to a42, respectively, at an angle of 45 °. Thereby, the mechanical stability of the entire transport carton PK is obtained not only in the vertical direction but also in the diagonal direction along the plane of the inner wall flaps L1 to L4, which mechanical stability is resistant to undesired shearing along the two directions of extension of the side walls. In addition to this, the inner wall flaps L1 to L4 are each locked at an angle of 45 ° relative to the side walls and may provide better protection against slipping for the substantially circular confectionery products contained in the transport carton PK. As already mentioned, in fig. 5 to 19, the plug connections between the inner wall flaps L1 to L4 and the corresponding side wall elements are designed in such a way that the side faces of the side walls S1 to S4 which are visible from the outside are each free of plug connection elements. The erected transport carton PK thus appears smooth and can be guided more easily in the turned-over outer carton.

The features of the variant of the folded panel Z shown in figures 5 to 20 are discussed in detail below. It should be understood here that the individual specific configurations of the different variants can also be combined with other variants from the other figures. In particular, the shape of the cover panel D, together with the shape, dimensions and specific profile of the inner wall flaps L1 to L4, can be matched to the corresponding shape, dimensions and specific profile of the side walls S1 to S4, of the functional elements hinged on the side walls S1 to S4 and of their corresponding cuts and recesses, in order to ensure a mechanically matching snap of the inner wall flaps L1 to L4 to the side walls of the folded cut pieces Z erected into the transport carton PK.

In fig. 5 and 6, two plug-in tab receptacles a11, a12 or a21, a22 are respectively cut out in intermediate wall flaps B12 and B34 in order to form a plug connection with corresponding plug-in tabs F12, F21 or F32, F41. The intermediate wall flaps B12 and B34 are folded inward after the side walls S1 or S2 are folded, and thus form an intermediate wall in front of the side walls S1 or S2 in the interior of the transport carton PK. Likewise, the recesses a31, a32, a41, a42 formed in the intermediate wall flaps B1 to B4 each form a plug-tab receptacle for the plug-tabs F11, F22 or F31, F42 in the intermediate wall in front of the side walls S3 or S4 in the interior of the transport carton PK.

As shown in fig. 5, the two plug tab receptacles located on the intermediate wall can additionally be connected to one another by means of the groove line regions a1 to a 4. In these groove line regions a1 to a4, the wall material is thinner and therefore stiffer, so that the plug tabs are easier to insert into the plug tab receptacles when erecting the transport carton PK.

The variant of fig. 7 and 8 differs from the variant of fig. 6 essentially in that two further plug-in tab receptacles a5 and a6 or a7 and a8 are formed in the intermediate wall flaps B12 and B34, respectively. These plug tab receptacles serve to receive side wall plug tabs E5, E7 or E6, E8 which are hinged to the respective side walls S3 and S4. Thereby, the corner portions of the side walls S1 to S4 are better mechanically locked to each other and the side walls S1 to S4 are prevented from springing away from each other. The plug-in tab receptacles a5 to A8 may be formed parallel to the plug-in tab receptacles a11 to a42, as shown in fig. 7, or perpendicular to the plug-in tab receptacles a11 to a42, as shown in fig. 8. This means that, depending on the orientation of the plug tab receptacles a5 to A8, the respective side wall plug tab E5, E7 or E6, E8 must or does not have to be provided with a bending line in order to achieve mechanical latching of the respective latching element.

In the variant of fig. 9 and 10, the corner reinforcements of the side wall junction are formed by side wall corner reinforcements E9 to E12 which are hinged in the corner between adjacent intermediate wall flaps. For this reason, the intermediate wall flaps B12, B34 of the longitudinal sides may be shortened with respect to the side wall lengths of the side walls S1 and S2, respectively, in order to provide space for the side wall corner reinforcements E9 to E12 and at the same time avoid the side walls S1 and S2 together with the side wall thickness of the intermediate wall being too high.

The variant of fig. 11 and 12 is characterized in that the inner flap reinforcements C1 to C4 are hinged on the outside via fold lines to the respective intermediate wall flaps B12, B34. These inner flap reinforcements C1 to C4 may be folded inward and serve to reinforce the intermediate wall with respect to the inwardly projecting inner wall flaps L1 to L4, that is, the inner flap reinforcements C1 to C4 may be folded respectively behind the inner wall flaps L1 to L4 and increase the effective flap thickness of the inner wall flaps L1 to L4.

In the variant of fig. 13, in addition to the inner flap reinforcements C1 to C4, a complex structure of the plug tab receptacles a11 to a42 is provided. For this purpose, bridge-like webs can be left on the actual recess, which webs are hinged on the inner side to the edges of the recess via bending lines. The recess itself has a handle hole on the side opposite the bending line, so that the bridge-like web can be folded back around the bending line after the insertion of the insertion web into the insertion web receptacle. As a result, the plug-in tab can be locked better in the plug-in tab receptacle, so that unintentional slipping out is avoided and the risk of unraveling of the inner wall flap (Auffalten) is reduced as a result.

Fig. 14 shows how the plug tab receptacles a11, a12, a21 and a22 can be introduced diagonally into the side regions of the intermediate wall flaps B12 and B34. In this case, the plug tab receptacles a11, a12, a21 and a22 of the folded panel Z of fig. 14 serve to receive the complete outer edge of the inner wall flaps L1 to L4, which is formed by the flap main separating slits HT1 to HT4, so that (as in the variant described above) it is no longer necessary to form the corresponding plug tabs F11 to F42. The groove lines (or double groove lines) U5 to U8 running obliquely in the side regions of intermediate wall flaps B12 and B34 and the corresponding vertical incisions (Einschnitt) in intermediate wall flaps B12 and B34 ensure that the triangular flap elements can be folded back using plug tab receptacles a11, a12, a21 and a22 inwardly around the corresponding outer edges of inner wall flaps L1 to L4.

In the variant of fig. 15, instead of introducing the plug tab receptacles into the intermediate wall flaps B12 and B34, the rollers of the inner wall flaps L1 to L4 and of the intermediate wall flaps B12 and B34 are exchanged as latching elements and counter-latching elements (vertauschen), the plug tab receptacles being cut out of the inner wall flaps L1 to L4. Then, mating plug tabs FL1 to FL4 hinged on U5 to U8 by means of a grooved wire (or a double grooved wire) extending obliquely again in the side regions of the intermediate wall flaps B12 and B34 serve as mating elements.

The variant of the folded panel Z in fig. 16, 17 and 18 is characterized in that a base panel DB is hinged on one of the side walls (in each case side wall S3, respectively) via the other side wall fold line DS3, having a sequence of octagons that are identical in terms of shape, size and positioning, consisting of cutting lines adjoining one another and of furrow lines with corresponding base panel cuts QB. In this octagonal sequence, similar to the recesses in the cover panel D, the internal flap reinforcements LB1 to LB4 are also recessed, and after the base panel DB is folded around the side wall folding line DS3, the internal flap reinforcements LB1 to LB4 can be folded upward in the direction of the cover panel D in the opposite direction to the internal wall flaps L1 to L4 and in parallel to the internal wall flaps L1 to L4. Thus, double-walled inner wall flaps are obtained from flap elements L1 to L4 and LB1 to LB4, respectively. The inner flap flaps L1 to L4 can engage with their lower outer edge in a snap-fit manner with the respective flap receptacles AB1 to AB4, which are introduced as recesses into the respective inner flap reinforcements LB1 to LB 4.

Further side walls S5 and S6 are hinged on the bottom panel DB corresponding to the side walls S1 and S2. Side walls S1 and S5 or S2 and S6 collectively form the double-walled side walls after erection of folded panels Z into transport carton PK. This enables the side walls S1 and S5 or S2 and S6 to be configured with only half the height and corresponding adhesive tabs in order to save material in the folded panel Z. The side walls S4 may be glued after erection of the folded panels Z to short adhesive tabs K hinged on opposite sides of the bottom panel DB, in order to obtain a transport carton PK closed all around on the sides.

The variants of fig. 16 and 17 differ only in the type of flap receptacles AB1 to AB4, which can be shaped either as closed cutouts (fig. 16) in the interior of the interior flap reinforcements LB1 to LB4 or as cutouts (fig. 17) which are slotted, partially open and are located on the edges of the outer contour of the interior flap reinforcements LB1 to LB 4. The variant of fig. 18 is an automatic variant, that is to say a variant which can be erected mechanically by means of an automatic folding device. In this case, the respective side faces are bonded to one another. For easier machining, intermediate wall flaps B2 and B4 are not hinged to side wall S4, but rather to an extended adhesive tab K on the side edge of base panel DB opposite side wall S4.

Fig. 19 shows an automatic device variant, which is similar to the variant of fig. 6. Here, too, for simpler machining, intermediate wall flaps B1 to B4 are not hinged to side walls S1 and S2, but to side walls S3 or S4. In particular, intermediate wall flaps B1-B4 are divided into three sections Q11-Q43, respectively, separated from each other by a cut/flute combination. In this case, the respective first two sections are each folded inward, as seen from the boundary line toward the side wall, in order to ensure the stability of the corner of the transport carton by means of the respective inner support.

Fig. 20 likewise shows an automatic variant which is similar to the variant of fig. 18. However, the plug-in tab receptacles in the inner flap reinforcements LB1 to LB4 are omitted here. In contrast, inner flap reinforcements LB 1-LB 4 are mounted (hingleben) to inner wall flaps L1-L4.

Fig. 21, 22 and 23 show schematic views of an unfolded folded panel Z in a top view in the plane of the folded panel, respectively. The shown folded panel Z is here generally flat. The outer contour of the entire folded cut segment Z comprises in each case a cutting edge by which the folded cut segment Z is cut out of the larger layer of cut segment material-the inner edges shown (apart from the contour of the inner cut Q explained further below) are in general in each case a fold or furrow or score line along which the subsequent folding of the folded cut segment Z is arranged.

The folded panel Z generally comprises a cover panel D as central panel element which, in the folded or unfolded state of the folded panel Z, defines the upper lying flat plane of the formed transport carton. The lid plate D has a square outer contour and has, in its interior, an inner cutout portion Q having a square shape located on the tip end with respect to the square outer contour of the lid plate D. The inner cut-out Q defines the lower edge of the inner wall flaps L1 to L4 formed by the respective portions of the lid panel D.

In the example of fig. 21, 22 and 23, the cover panel D of the folded panel Z comprises two side wall bending lines D1 and D2 (below and above in fig. 21, 22 and 23) and two side wall bending lines D3 and D4 (left and right in fig. 21, 22 and 23), two side walls S1 and S2 are hinged on said side wall bending lines D1 and D2, respectively, and two side walls S3 and S4 are hinged on said side wall bending lines D3 and D4, respectively. The side walls S1 to S4 are folded in order to fold the transport carton PK from the folded panels by 90 ° downwards (in fig. 21, 22 and 23 towards the plane of the drawing) relative to the cover panel D around the side wall fold lines D1 to D4.

Intermediate wall flaps B1 to B4 are respectively hinged to the end sides of the side walls S3 and S4 via side wall tab folding lines. The folded panels Z of figures 21, 22 and 23 respectively show a variant of the automatic device in which, for simpler machining, the intermediate wall flaps B1 to B4 are not hinged on the side walls S1 and S2, but on the side walls S3 or S4. In particular, intermediate wall flaps B1-B4 are divided into three sections Q11-Q43, respectively, separated from each other by a cut/flute combination. In this case, the respective first two sections are each folded inward, as seen from the boundary line toward the side wall, in order to ensure the stability of the corner of the transport carton by means of the respective inner support.

Fig. 24 shows the shipping carton PK partially erected from the folded panels Z of fig. 23, wherein it can be seen that intermediate wall removable cover sections Q12 (or Q22, Q32 and Q42) are obliquely unfolded between adjacent side walls and supported on the side walls by respective adjoining intermediate wall removable cover sections Q11 and Q13 (or Q21 and Q23, Q31 and Q33 and Q41 and Q43). The intermediate wall flap section thus serves as a rear wall of the inner wall flaps L1 to L4 described below, which are turned out downward from the lid panel D.

Intermediate wall flaps B1 to B4 can, after unfolding of side walls S1 to S2, lie inwardly on the inside of downwardly turned side walls S3 or S4 and there can be glued to the inside of side walls S3 or S4.

The inner cut Q inside the cover D is arranged concentrically with the sequence of convex octagons made up of the cutting lines T1 to T4 and the cutting/grooving line combinations O1 to O4 adjoining one another. Here, the cutting lines T1 to T4 are respectively parallel to the side wall bending lines D1 to D4. Between the ends of each two adjacent cutting lines T1 to T4, each one of the cutting/grooving line combinations O1 to O4 extends at an angle of 45 ° relative thereto. By making the lengths of the cutting lines T1 to T4 correspondingly identical and the lengths of the cut/groove line combinations O1 to O4 likewise correspondingly identical, the sequence of cutting lines T1 to T4 and cut/groove line combinations O1 to O4 forms an octagon which is doubly symmetrical. Due to this double symmetry, the cutting/grooving line combinations O1 to O4 are parallel to the edge of the inner cutting Q.

The cutting/groove line combinations O1 to O4 have groove lines in the central region and are cut in the respective outer regions. Thereby, the inner wall flaps L1 to L4 formed by the portions of the inner area of the lid panel D are partially left empty at the edges and finally separated from each other by a combination of separation cuts. Here, first, the movable lid main separation slits HT1 to HT4 extend from one of corner points of the inner cutout portion Q in the direction of the centers of the cutting lines T1 to T4 which are respectively opposed. The movable lid main separation slits HT1 to HT4 are introduced into the lid panel D perpendicularly to the cutting line. The movable lid main separation cuts HT1 to HT4 respectively terminate at a branch point P at a position along a section between the respective corner portions of the inner cutout portion Q and the centers of the respectively opposed cutting lines T1 to T4.

Then, two of the total eight flap clearance separation slits G11 to G42 branch off from the bifurcation point P, respectively. In this case, flap clearance separation notches G11 to G42 are connected to flap main separation notches HT1 to HT4 and extend symmetrically to one another with respect to the axis of the associated flap main separation notches HT1 to HT4 from bifurcation point P as far as respective cutting lines T1 to T4. A substantially triangular cutout is thereby left between two of the flap clearance separation notches G11 to G42 and the respective cutting lines T1 to T4, so that the inner wall flaps L1 to L4 thereby have a convex octagonal outer contour which is formed by the inner edge of the inner cutout Q, one of the cut/groove line combinations O1 to O4, two of the flap main separation notches HT1 to HT4, two of the flap clearance separation notches G11 to G42 and the respective half of two of the cutting lines T1 to T4, respectively. By leaving the inner wall flaps L1 to L4 exposed at all edges of their outer contour, in addition to the edges formed by the respective one of the cut/groove line combinations O1 to O4, the inner wall flaps L1 to L4 can be folded back relative to the flap plane of the flap D into the drawing planes of fig. 21, 22 and 23, as is shown by way of example in the perspective view of fig. 24.

In contrast to the variants of fig. 1 to 20, the inner wall flaps L1 to L4 are glued to the respective intermediate wall flaps or side walls and are not fixed by a plug-in tab connection. For this reason, inner wall flap score line combinations R1 to R4 composed of three sides of a score line imitating a (nachformen) rectangle are introduced into the inner wall flaps L1 to L4. The region lying within the inner wall flap score line combination R1 to R4 then forms the actual inner wall flap, while the edge region can be partially turned over (einschlagen) in order to ensure a plane-parallel bonding with the respective adjoining face of the intermediate wall flap or the side wall of the transport carton.

The profile of the free separation notches G11 to G42 of the flap can be selected precisely here, since the plug-in tabs are no longer present at all. In order to improve the clearance of these edge regions beyond the inner wall flap score line combinations R1 to R4, different possibilities are conceivable. For example, the movable lid main separation slits HT1 to HT4 between the crotch point P and the inner cut portion Q may be weakened by a diamond-shaped recess (see fig. 21). As an alternative, partial incisions can be introduced into the edge regions of the inner wall movable cover score line combinations R1 to R4, away from the movable cover main separation cuts HT1 to HT4, in order to thus achieve a better separation of these edge regions (see fig. 22). Finally, the geometry of the edge region can also be selected such that the corner portions of the inner wall flap score line combinations R1 to R4 lie directly above the flap main separation notches HT1 to HT4, so that no further separate or empty cutting lines have to be introduced into the lid panel D (see fig. 23).

Fig. 24 shows how one of the inner wall flaps L1 is folded down around the corresponding groove line O1. The edge regions defined by the inner wall flap score line combinations R1 to R4 are here deflected slightly inwards so as to be able to lie flat against the side walls.

In addition, the special cutting line or groove line pattern in the region of the side walls and/or the intermediate flap of fig. 1 to 20 can also be transferred in a suitable manner to the variants of fig. 21 to 23 without the basic principle of the inner wall flap clearances L1 to L4 being affected or changed in this way.

The articles contained in the transport carton PK erected from one of the further above-mentioned folded panels Z, like for example cake cakes or cakes, can be stored on a separate transport bottom before they are contained in the transport carton P, since the transport carton PK is open at the bottom for manufacturing reasons. Likewise, when removing the transport carton PK, the packaged article may remain on the separate transport base and be removed at a later point in time if necessary.

In some embodiment variants it is also possible to hinge a bottom plate on one of the side walls of the folded panel Z as a transport bottom integrated into the folded panel Z. Whereby the transport bottom is constructed integrally with the transport carton PK when folding the folded cut pieces Z. The hinged transport base can be fastened to the opposite side wall, for example, by means of further plug connections.

The transport carton PK may furthermore also serve as an inner package for another outer package, for example a common rectangular folded cardboard sheet or a surrounding folded web roll. Thus, it is not imperative that the transport carton PK or the folded panels Z as a basis are printed with decorations or markings-such printed markings for e.g. retail stores or for wholesalers can be placed on the outer package.

The transport carton PK to be folded from the folded cut pieces Z shown and described is simple to produce, since no additional tools or aids are required, apart from possibly some adhesive for adhesively connecting the side wall webs to the adjoining side walls. Moreover, the matching of the different panel parts to each other is eliminated, since the folded panel Z is already present in one piece or piece.

The folded panels Z provide a possibility to manufacture a mechanically stable transport carton PK which is suitable on the one hand for protecting the articles packed therein, like for example food in the field of confectionery. In the transport carton PK, the intermediate wrapped and substantially cylindrical biscuit products, such as for example a cream cake, a waffle, a small cake (Oblaten), a tower cake, a pepper cake or similar products, are protected against slipping within an outer wrapper constructed around the transport carton PK.

On the other hand, transport cardboard boxes PK made of folded panels Z can also be used within the scope of the manufacture of confectionery products, for example to ensure the reliable transport of cylindrical cakes or cakes from one processing station to the next. For example, a cake blank consisting of one or more layers of cake bottoms may be baked first to make a creamy cake. These cake blanks may then be intermediate-packed in a transport cardboard box PK in order to ensure the stability of the cake blanks during transport and to avoid collision of side-by-side cake blanks with each other. When the cake blanks are cooled, they may be transported from the baking station to a coating station, where the transport carton PK is removed again and the cake blanks may be coated with a creamy cream and/or other decoration, such as a frosting.

Moreover, the folded panel Z enables an extremely efficient and durable production, since very little leftover material and therefore very little waste material is produced when manufacturing the folded panel Z. This is particularly advantageous when the transport carton PK made of folded panels Z is used as temporary protective cardboard in the manufacture of confectionery products. However, even when the transport carton PK is used as intermediate packaging for confectionery products to be transported at the end user, folded cuts made of corrugated cardboard or paperboard offer advantages, since they have on the one hand a small weight and on the other hand can replace packaging materials that need to be removed, like for example foamed plastic mouldings, in a cumbersome and not always environmentally friendly manner.

Claims

1. A one-piece folded panel (Z), in particular made of corrugated cardboard or paperboard, having:

a cover plate (D) having a square outer contour;

four side walls (S1, S2, S3, S4) hinged on the cover plate (D) via side wall bending lines (D1, D2, D3, D4);

a square inner cut-out (Q) arranged in the center of the cover plate (D); and

a substantially convex octagonal sequence consisting of cutting lines (T1, T2, T3, T4) and groove lines (O1, O2, O3, O4) adjoining one another, said cutting lines and groove lines being introduced into the cover sheet (D) around the inner cut (Q).

2. The folded panel (Z) according to claim 1, further having:

four flap main separation cuts (HT1, HT2, HT3, HT4) introduced into the lid panel (D) from respective corner portions of the inner cut-out (Q) in the direction of the centers of respectively opposite cutting lines (T1, T2, T3, T4) and perpendicularly to said cutting lines; and

eight movable lid clearance separation cuts (G11, G12, G21, G22, G31, G32, G41, G42), two of which respectively extend from a bifurcation point (P) at a position along a section between respective corner portions of the inner cutout (Q) and centers of respectively opposed cutting lines (T1, T2, T3, T4) of the movable lid main separation cuts (HT1, HT2, HT3, HT4) to the respective cutting lines (T1, T2, T3, T4) symmetrically to each other with respect to an axis of the movable lid main separation cuts.

3. A folded panel (Z) according to claim 2, wherein along the eight flap clearance separation cuts (G11, G12, G21, G22, G31, G32, G41, G42) a splicing tab (F11-F42) for an inner wall flap (L1, L2, L3, L4) is left free between a crotch point (P) for the inner wall flap (L1, L2, L3, L4) and the respective cutting line (T1, T2, T3, T4), respectively.

4. A folded panel (Z) according to claim 3, wherein the left-over tab (F11-F42) is hinged on the inner wall flap (L1, L2, L3, L4) at a straight connection between the crotch point (P) and the score line following the respective cut line (T1, T2, T3, T4).

5. The folded panel (Z) according to any of claims 2 to 4, further having:

intermediate wall flap (B1, B2, B3, B4, B12, B34) hinged to two opposite side walls (S1, S2, S3, S4) via intermediate wall folding lines.

6. A folded panel (Z) according to claim 5 wherein a plug tab receptacle (A11-A42) is introduced in the intermediate wall flaps (B1, B2, B3, B4, B12, B34) as a cut-out in the intermediate wall flaps (B1, B2, B3, B4, B12, B34).

7. A folded panel (Z) according to claim 2, wherein a plug tab receiving portion (AL1, AL2, AL3, AL4) is introduced in the inner wall flap (L1, L2, L3, L4) as a cut-out in the inner wall flap (L1, L2, L3, L4).

8. The folded panel (Z) according to claim 7, further having:

intermediate wall movable covers (B12, B34) hinged on two opposite side walls (S1, S2, S3, S4) through intermediate wall bending lines, and mating plug tabs (FL1, FL2, FL3, FL4) for being buckled with plug tab accommodating parts (AL1, AL2, AL3, AL4) of the inner wall movable covers (L1, L2, L3, L4) are hinged on the intermediate wall movable covers.

9. The folded panel (Z) according to claim 2, further having:

a base plate (DB) which is hinged on one of the side walls (S3) via a side wall bending line (DS3) and has a square base plate cutting part (QB) arranged in the center of the base plate (DB) and a basically convex octagonal sequence formed by cutting lines and groove lines which are adjacent to each other and are introduced into the base plate (DB) around the base plate cutting part (QB).

10. A folded panel (Z) according to claim 9, wherein the inner flap reinforcements (LB1, LB2, LB3, LB4) are left empty in the sequence of convex octagons of the bottom panel (DB).

11. A folded panel (Z) according to claim 10, wherein in the inner flap reinforcement (LB1, LB2, LB3, LB4) a flap accommodation (AB1, AB2, AB3, AB4) is introduced as a cut-out, which can be engaged in a snap-fit manner with an outer edge of a lower portion of one of the inner wall flaps (L1, L2, L3, L4), respectively.

12. The folded panel (Z) according to claim 1, further having: four movable lid separation cuts (LT1, LT2, LT3, LT4) extending in the lid panel (D) perpendicularly to the cutting lines (T1, T2, T3, T4) from the center of a respective one of the cutting lines (T1, T2, T3, T4) to a respective one of the corners of the square inner cutout (Q).

13. A folded panel (Z) according to claim 12, wherein four inner wall flaps (L1, L2, L3, L4) are left empty from the cover panel (D) and each have a convex hexagonal outer contour formed by the inner edge of the inner cut (Q), one of the groove lines (O1, O2, O3, O4), two of the flap separation cuts (LT1, LT2, LT3, LT4) and a respective half of two of the cut lines (T1, T2, T3, T4).

14. A folded panel (Z) according to claim 13, wherein along a part of the outer contour of each of the inner wall flaps (L1, L2, L3, L4), two tabs (F11-F42) are left free in each of the corners of the inner wall flaps (L1, L2, L3, L4) formed by the flap separation cuts (LT1, LT2, LT3, LT4) and the cut lines (T1, T2, T3, T4).

15. A folded panel (Z) according to claim 14, wherein two respective plug tab receptacles (a11-a42) in the side walls (S1, S2, S3, S4) are introduced as cut-outs in the side walls (S1, S2, S3, S4).

16. A folded panel (Z) according to any of claims 1 to 15, wherein side wall tabs (B1, B2, B3, B4) are hinged on the end sides of two of the side walls (S1, S2) via side wall tab bending lines (M1, M2, M3, M4), respectively.

17. A folded panel (Z) according to claim 16, wherein the side wall tabs (B1, B2, B3, B4) each have a reduced width relative to the width of the side walls (S1, S2).

18. A folded panel (Z) according to any of claims 1 to 17, wherein two of the side walls (S3, S4) are provided with double groove lines (U1, U2, U3, U4) on end side end sections, respectively, extending diagonally relative to the width of the side walls (S3, S4).

19. The folded panels (Z) according to any of claims 1 to 18, formed of corrugated cardboard with corrugation type F or E.

20. A transport carton (PK) made of folded panels (Z) according to any of claims 1 to 19.

21. Transport carton (PK) for confectionery products, made of folded panels (Z) according to claim 15, wherein said inner wall flap (L1, L2, L3, L4) and said side walls (S1, S2, S3, S4) are turned downwards by 90 ° with respect to said cover panel (D), and wherein said splicing tabs (F11-F42) are respectively engaged with one of said splicing tab housings (a11-a 42).

22. Transport carton (PK) for confectionary products, made of folded panels (Z) according to claim 11, wherein two of said inner wall flap (L1, L2, L3, L4) and inner flap reinforcement (LB1, LB2, LB3, LB4) are respectively arranged parallel with respect to each other and said inner wall flap (L1, L2, L3, L4) is engaged in a snap-fit manner with said inner flap reinforcement (LB1, LB2, LB3, LB4) through said flap housing (AB1, AB2, AB3, AB 4).