Folding blank and shipping package folded therefrom
In a square cover plate, a one-piece folding blank has a square cutaway that is rotated by 45° relative to the square shape of the cover plate. This square cutaway is arranged concentrically to a convex, octagonal groove-line and scoring-line structure. In this case, groove lines and scoring lines alternate respectively in such a way that the scoring lines wind up parallel to the outside edges of the cover plate, and the groove lines wind up parallel to the outside edges of the square cutaway. From the center of the scoring lines, in each case perpendicular to the scoring line, a flap separation cut up to the respective corner of the inside square cutaway is inserted into the cover plate. As an alternative, a flap main separation cut is inserted in the direction of the center of the respectively opposite scoring line and perpendicular to this scoring line in the cover plate from the respective corner of the inside square cutaway. This flap main separation cut branches at a bifurcation point into two flap free-position separation cuts at a point along the stretch between the respective corner of the inside square cutaway and the center of the respectively opposite scoring line, which cuts run symmetrically to one another to the axis of the flap main separation cut from the bifurcation point up to the respective scoring line.
This invention relates to a folding blank, in particular a one-piece, flat folding blank made of corrugated cardboard, cardboard or similar pulp-based or natural-fiber-based packaging materials, as well as a shipping package that can be folded from a folding blank, for example for intermediate packaging of pastry products, such as, for example, tarts or cakes.
TECHNICAL BACKGROUND OF THE INVENTIONConfectionery goods, such as, for example, custard pies or ice cream cakes, are often retailed in deep-frozen form. To this end, it is necessary to select a type of packaging in which the confectionery goods are well protected against shipping damage. Folding packages, as disclosed in, for example, DE 80 07 232 U1, are well-suited in principle for such packaging, but frequently do not have the necessary mechanical stability.
Other types of packaging, for example made of foamed or expanded polystyrene, as shown by way of example in DE 80 18 011 U1, cannot be shipped and stored in a compact form. To this are added the poor environmental sustainability, the low sustainability of the resources that are used for the production thereof, as well as the cumbersome disposal by the consumer.
Previous solutions made of cardboard relate to, for example, dimensionally-stable cake packaging with bottom and cover sections, which are connected by a crosspiece section as well as a separate laminated-paper sleeve as a cake receptacle, as disclosed in, for example, DE 20 2017 102 150 U1. Such cake packages are, however, composed of multiple parts due to production requirements and are therefore complicated to put together. Other packages that consist of one-piece blanks—as disclosed in, for example, U.S. Pat. No. 2,189,151 A or U.S. Pat. No. 5,368,225 A—are inherently unstable, however, and cannot adequately protect confectionery goods transported therein from shifting and damage.
There is therefore a need for options for the production of shipping packages, which make possible an efficient production process that consists of a one-piece folding blank. In addition, there is a need for shipping packages with a high mechanical shipping stability.
ABSTRACT OF THE INVENTIONAccording to this invention, an essential idea is to use a one-piece folding blank, for example made of cardboard or corrugated cardboard, which in a square cover plate has a square cutaway that is rotated by 45° relative to the square shape of the cover plate. This square cutaway is arranged concentrically to a convex, octagonal groove-line and scoring-line structure. In this case, groove lines and scoring lines alternate respectively in such a way that the scoring lines wind up parallel to the outside edges of the cover plate, and the groove lines wind up parallel to the outside edges of the square cutaway.
In a first possible implementation of this invention, in this case from the center of the scoring lines, in each case perpendicular to the scoring line, a flap separation cut up to the respective corner of the inside square cutaway is inserted into the cover plate.
In a second possible implementation of this invention, a flap main separation cut is inserted in the direction of the center of the respectively opposite scoring line and perpendicular to this scoring line in the cover plate from the respective corner of the inside square cutaway. This flap main separation cut branches at a bifurcation point into two flap free-position separation cuts at a point along the stretch between the respective corner of the inside square cutaway and the center of the respectively opposite scoring line, which cuts run symmetrically to one another to the axis of the flap main separation cut from the bifurcation point up to the respective scoring line.
In principle, the scoring lines and flap separation cuts or flap main separation cuts and flap free-position separation cuts in both possible implementations in this case make possible the separation of inside-wall flaps that are placed between the square cutaway and the octagonal groove-line and scoring-line structure and that remain hinged on the cover plate when the folding section is folded over the groove lines and in this case folded downward form an octagonal inner recess below the cover plate.
Together with four side walls that are hinged outside at the outside edges of the square cover plate via outside groove lines, the inside-wall flaps therefore define an octagonal inside-wall structure that can accommodate circular packing goods, such as, for example, tarts or cakes, considerably better than square inside-wall structures.
In the first possible implementation of this invention, the inside-wall flaps can have score lines on the corners that are defined by scoring lines and flap separation cuts, on which score lines the respective inside-wall flap can be turned down. As a result, locking straps can be made on the vertical inside-wall flap edges, which straps can be engaged in the side walls of the folding blank during folding with plug-in openings or locking strap receptacles corresponding in size and position in the side walls of the folding blank. The corners of the inside-wall flaps that are turned down toward the inside form, on the one hand, a mechanical reinforcement of the inside-wall flaps on the locking straps, but on the other hand contribute to an increase in the material thickness on the locking strap receptacles.
Therefore, in the second possible implementation of this invention, it can be advantageous for the corners that in each case fold inward in the first possible implementation to be omitted from the outset. To this end, the two flap free-position separation cuts together with the section of the scoring line placed between the points of intersection thereof with the scoring line form an approximately delta-shaped recess. The material in the folding blank that is omitted by this recess makes possible a direct latching of the inside-wall flaps with corresponding locking receivers in the side walls or in the intermediate-wall flaps that are upstream in the side walls.
In each case, the one-piece folding blank in the folded state therefore offers high mechanical stability relative to warp, shear stress, shear forces or pressure, since the side walls are already connected in a stable manner to the cover plate via the side knuckle lines and the inside-wall flaps in each case secure two adjacent side walls to one another in their orientation via the locking strap connections. In this case, the one-piece folding blank according to the invention offers the considerable advantage that adhesive connection are not absolutely necessary to keep the folded shipping package in its proper shape.
The invention is described more precisely below in connection with and relative to the exemplary embodiments as in the attached drawings.
The attached drawings are used for better understanding of this invention, and they illustrate exemplary variant embodiments of the invention. They are used to explain principles, advantages, technical effects and variation possibilities. Of course, other embodiments and many of the intended advantages of the invention are also conceivable, in particular examining the detailed description of the invention that is presented below. The elements in the drawings are not necessarily depicted to scale and are depicted in partially simplified or schematized form for the sake of clarity. The same reference numbers in this case refer to the same or similar components or elements.
Although special embodiments are described and depicted herein, it is clear to one skilled in the art that many other alternative and/or equivalent implementations can be selected for the embodiments, without departing significantly from the basic idea of this invention. In general, all variations, modifications and variants of the embodiments described herein are also to be considered as being covered by the invention.
DETAILED DESCRIPTION OF EMBODIMENTSThe folding blanks that are shown below are in each case one piece, i.e., they are produced from a continuous piece of blank material by cutting outside edges and forming recesses or punch-outs in the inside area of the blank material. The blank material can in this case comprise, for example, corrugated cardboard with various types of waves (A-, B-, C-, D-, E-, F-, G-, N-waves or combinations thereof), cardboard or similar pulp-based materials, such as, for example, paper composites with or without plastic coating.
In particular, to avoid adhesion of foodstuffs stored in a shipping package produced from a folding blank shown below, such as, for example, ice cream cakes, cakes, tarts and similar confectionery goods, individual inside folding blank elements such as straps, flaps or side walls can be provided with a grease-proof and/or moisture-proof coating or barrier, such as, for example, a PE coating, on an inner side of the shipping package on one side (or else on two sides).
In terms of this invention, knuckle lines are all pre-shaped target folding lines or groove lines in the blank material, along which a knuckle is provided in the blank material for later three-dimensional production of a shipping package. In terms of this invention, cutaways are in this case openings that are cut, punched-out or otherwise cut into the blank material and are completely surrounded by blank material in the folding blank plane. In particular, in terms of this invention, cutaways can be narrow, elongated openings of approximately 1 millimeter to 2 centimeters in width, which can extend over an opening slot of 1 centimeter up to a few tens of centimeters. Such cutaways can be formed by punching out blank material and have punch ends that run toward the starting and end points in a pointed or rounded manner.
In terms of this invention, score lines are all target folding lines in which the blank material is cut to a portion of its thickness, for example two-thirds of the thickness. The blank material can then be folded along such score lines under less stress than blank material of full thickness, such as, for example, on a groove line.
The folding blank Z in general comprises a cover plate D as a central blank element, which defines an upper flat plane of the formed shipping package in the folded or arranged state of the folding blank Z. The cover plate D has a square outside contour and has in its interior an inside cutaway Q, which has a square shape at the point relative to the square outside contour of the cover plate D. The inside cutaway Q defines the lower edges of inside-wall flaps L1 to L4 that are formed by parts of the cover plate D.
In the example of
In each case, side-wall straps B1 to B4 are hinged on the front sides of the side walls S1 and S2 via side-wall strap knuckle lines M1 to M4. The side-wall straps B1 to B4 can be implemented with a tilted inside edge and have in each case a slightly reduced width compared to the width of the side walls S1 and S2. The side-wall straps B1 to B4 can be attached inward to the insides of the side walls S3 or S4 that are folded downward and can be glued there with the insides of the side walls S3 or S4 after the side walls S1 to S2 are arranged. To this end, it can be advantageous for the side walls S3 and S4 to be provided in each case on the front end sections with double groove lines U1 to U4 that run diagonally to the width of the side walls S3 and S4, at which double groove lines the edges of the side walls S3 and S4 can be reinforced as double walls by folding the side-wall reinforcements E1 to E4 that are produced on the insides of the side walls S3 and S4. The respective side-wall straps B1 to B4 can then be glued to the side-wall reinforcements E1 to E4 that are folded inward. In this case, it should be clear that the double groove lines U1 to U4 do not necessarily have to be provided and that the respective side-wall straps B1 to B4 can also be glued, attached or plugged into the single-wall side walls S3 and S4. In additional alternatives, single groove lines U1 to U4 can also be provided.
In many variants, it can also be possible to leave open a slot between the two groove lines that form the respective double groove lines U1 to U4, so that the side-wall straps B1 to B4 do not have to be glued to the insides of the side walls S3 and S4 but rather can instead be plugged into the slot that is left open between the double groove lines U1 to U4. As a result, at the expense of mechanical stability of the side-wall structure, an expensive gluing of the side-wall straps B1 to B4 is no longer necessary.
The inside cutaway Q in the interior of the cover plate D is arranged concentrically to a convex octagonal sequence that consists of scoring lines T1 to T4 and groove lines O1 to O4 that adjoin one another. In this case, the scoring lines T1 to T4 run respectively parallel to the side-wall knuckle lines D1 to D4. Between the ends of each two adjacent scoring lines T1 to T4, each one of the groove lines O1 to O4 runs at a 45° angle thereto. As a result of the scoring lines T1 to T4 being in each case the same length, and the groove lines O1 to O4 also being in each case the same length, the sequence that consists of scoring lines T1 to T4 and groove lines O1 to O4 forms a double symmetrical octagon. Because of this double symmetry, the groove lines O1 to O4 run parallel to the edges of the inside cutaway Q.
The inside-wall flaps L1 to L4 that are formed from parts of the inside area of the cover plate D are ultimately separated from one another by flap separation cuts LT1 to LT4. The flap separation cuts LT1 to LT4 in this case run from the center of each one of the scoring lines T1 to T4 perpendicular to the scoring line up to in each case one of the corner points of the inside cutaway Q. The inside-wall flaps L1 to L4 thus have a convex hexagonal outside contour, which in each case is formed by an inside edge of the inside cutaway Q, one of the groove lines O1 to O4, two of the flap separation cuts LT1 to LT4, and in each case one-half of two of the scoring lines T1 to T4. Because of the free-standing nature of the inside-wall flaps L1 to L4 at all edges of the outside contour thereof up to the edge formed by the respective one of the groove lines O1 to O4, the inside-wall flaps L1 to L4 can be folded through relative to the cover plate plane of the cover plate D into the drawing plane of
In addition to the free-standing nature of the inside-wall flaps L1 to L4 along a portion of the outside contour thereof, locking straps F11 to F42 are made free-standing diagonally via the corners of the inside-wall flaps L1 to L4 that are formed by the flap separation cuts LT1 to LT4 and the scoring lines T1 to T4. This is carried out in such a way that strap sections become free-standing approximately in the center of the diagonal connections over the corners, and the edge-side diagonal connections are provided with knuckle lines. As a result, the respective corner can be bent inward or outward in an approximately triangular shape, and thus the respective locking strap F11 to F42 is able to project outward freely. For example, the locking strap F11 is formed by a press cut in the center of the diagonal connection between the scoring line T1 and the flap separation cut LT1. The other locking straps F12 to F42 are formed in a corresponding way. The shape of the locking straps F11 to F42 is in this case approximately rectangular and can optionally be configured with rounded or tilted corners.
The locking straps F11 to F42 are used in the respective securing of the inside-wall flaps L1 to L4 to the side walls S1 to S4 that are also bent downward. To this end, two locking strap receptacles A11 to A42 each that correspond in each case in shape and position are inserted into the side walls S1 to S4 as cutaways in the side walls S1 to S4. As depicted in
Even if in each case corners of the inside-wall flaps L1 to L4 that are turned down toward the rear are depicted in
The detail view of
Below, with reference to the exemplary views of
After being made free-standing, the locking straps F11 to F42 are in this case guided by folding the respective corners of the inside-wall flaps L1 to L4 at a 45° angle through the locking strap receptacles A11 to A42 that are assigned in each case. Both in the vertical direction and in the diagonal direction along the plane of the inside-wall flaps L1 to L4, mechanical stabilization of the entire shipping package PK is thus produced, which stabilization counteracts undesirable shearing strain along both extending directions of the side walls. In addition, to this end, the inside-wall flaps L1 to L4 are in each case halted at a 45° angle relative to the side walls and offer improved shifting protection for the essentially circular confectionery goods that are accommodated in the shipping package PK.
Other possible variants for folding blanks Z are explained below with reference to the diagrammatic depictions of
For each of the folding blanks Z of
Common to the folding blanks Z of
In the example of
On the front sides of the side walls S1 and S2, in each case intermediate-wall straps B1 to B4 are hinged via side-wall-strap knuckle lines M1 to M4. The intermediate-wall straps B1 to B4 can be implemented with a tilted inside edge and have in each case a slightly reduced width compared to the width of the side walls S1 and S2. The intermediate-wall straps B1 to B4 can be attached inward to the insides of the side walls S3 or S4 that are folded downward and can be glued there with the insides of the side walls S3 or S4 after the side walls S1 to S2 are arranged. To this end, it can be advantageous for the side walls S3 and S4 to be provided in each case on the front end sections with double groove lines U1 to U4 that run diagonally to the width of the side walls S3 and S4, at which double groove lines the edges of the side walls S3 and S4 can be reinforced as double walls by folding the side-wall reinforcements E1 to E4 that are produced on the insides of the side walls S3 and S4. The respective intermediate-wall straps B1 to B4 can then be glued to the side-wall reinforcements E1 to E4 that are folded inward. In this case, it should be clear that the double groove lines U1 to U4 do not necessarily have to be provided and that the respective intermediate-wall straps B1 to B4 can also be glued, attached or plugged into the single-wall side walls S3 and S4. In additional alternatives, single groove lines U1 to U4 can also be provided.
In addition, in each case, intermediate-wall straps B12 or B34 are hinged on the edges of the side walls S1 and S2 that are opposite to the respective side-wall knuckle line D1 or D2, which straps can also be attached inward to the insides of the side walls S1 or S2 that are folded downward and can be glued there with the insides of the side walls S1 or S2 after the side walls S1 to S2 are arranged. As a result, a smooth structure that is not interrupted by functional elements is produced on the outside of all side walls S1 to S4, which structure, on the one hand, makes an aesthetically pleasing impression on a user, and, on the other hand, can also glide easily and smoothly in an outer package that is wrapped around a shipping package PK that is set up from the folding blank Z. In other words, all knuckles, straps and cutaways that are necessary for mechanical solidarity of the shipping package PK can be moved by the intermediate-wall straps B1 to B4 as well as B12 and B34 into the interior of the righted shipping package PK and can be made invisible from the outside.
In many variants, it can also be possible to leave open a slot between the two groove lines that form the respective double groove lines U1 to U4, so that the intermediate-wall straps B1 to B4 do not have to be glued to the insides of the side walls S3 and S4 but rather can instead be plugged into the slot that is left open between the double groove lines U1 to U4. As a result, at the expense of mechanical stability of the side-wall structure, an expensive gluing of the side-wall straps B1 to B4 is no longer necessary.
The inside cutaway Q in the interior of the cover plate D is arranged concentrically to an essentially convex octagonal sequence that consists of scoring lines T1 to T4 and groove lines O1 to O4 that adjoin one another. In this case, the scoring lines T1 to T4 run essentially parallel to the side-wall knuckle lines D1 to D4. In particular, the scoring lines T1 to T4 can have a slightly bent or convex curvilinear course, so that the octagonal sequence that is produced better approximates the outside shape of a circle. Between the ends of each two adjacent scoring lines T1 to T4, each one of the groove lines O1 to O4 runs at a 45° angle thereto. As a result of the scoring lines T1 to T4 being in each case the same length, and the groove lines O1 to O4 also being in each case the same length, the sequence that consists of scoring lines T1 to T4 and groove lines O1 to O4 forms a double symmetrical octagon. Because of this double symmetry, the groove lines O1 to O4 run parallel to the edges of the inside cutaway Q.
The inside-wall flaps L1 to L4 that are formed from parts of the inside area of the cover plate D are ultimately separated from one another by combinations of separation cuts. In this case, first flap main separation cuts HT1 to HT4 run from one of the corner points of the inside cutaway Q in the direction of the center of the respectively opposite scoring lines T1 to T4. The flap main separation cuts HT1 to HT4 are perpendicular to this scoring line into which cover plate D is inserted. The flap main separation cuts HT1 to HT4 in each case end at a bifurcation point P at a point along the stretch between the respective corner of the inside cutaway Q and the center of the respectively opposite scoring lines T1 to T4.
In each case, two from a total of eight flap free-position separation cuts G11 to G42 then branch from the bifurcation point P. The flap free-position separation cuts G11 to G42 in this case connect to flap main separation cuts HT1 to HT4 and run symmetrically to one another to the axis of the related flap main separation cuts HT1 to HT4 from the bifurcation point P up to the respective scoring lines T1 to T4. As a result, between two of the flap free-position separation cuts G11 to G42 and the respective scoring lines T1 to T4, an approximately delta-shaped cutaway is made free-standing, so that the inside-wall flaps L1 to L4 thus have a convex octagonal outside contour, which is formed in each case by an inside edge of the inside cutaway Q, one of the groove lines O1 to O4, two of the flap main separation cuts HT1 to HT4, two of the flap free-position separation cuts G11 to G42, and in each case, one-half of two of the scoring lines T1 to T4. Because of the free-standing nature of the inside-wall flaps L1 to L4 at all edges of the outside contour thereof up to the edge formed by the respective one of the groove lines O1 to O4, the inside-wall flaps L1 to L4 can be folded through relative to the cover plate plane of the cover plate D into the drawing plane of
Since the inside-wall flaps L1 to L4 are already detached from one another via the delta-shaped cutaway, no more corners have to be turned down in order to form locking straps F11 to F42 along the flap free-position separation cuts G11 to G42, as in the variant in
The locking straps F11 to F42 are used in the respective securing of the inside-wall flaps L1 to L4 to the side walls S1 to S4 that are also bent downward. To this end, two locking strap receptacles A11 to A42 each that correspond in each case in shape and position are inserted into the intermediate-wall flaps B1 to B4 or B12 and B34 as cutaways. As depicted in
The locking straps F11 to F42 can in this case be guided at a 45° angle through the respectively assigned locking strap receptacles A11 to A42. Both in the vertical direction and in the diagonal direction along the plane of the inside-wall flaps L1 to L4, mechanical stabilization of the entire shipping package PK is thus produced, which stabilization counteracts undesirable shearing strain along both extending directions of the side walls. In addition, to this end, the inside-wall flaps L1 to L4 are in each case halted at a 45° angle relative to the side walls and offer improved shifting protection for the essentially circular confectionery goods that are accommodated in the shipping package PK. As already mentioned, in
Below, characteristics of the variants of the folding blanks Z, shown in
In
As illustrated in
The variants of
In the variants of
The variants of
In the variant of
In the variant of
The variants of the folding blanks Z in
Additional side walls S5 and S6 are hinged on the base plate DB corresponding to the side walls S1 and S2. The side walls S1 and S5 or S2 and S6 form common double-walled side walls after the folding blank Z is set up to form a shipping package PK. This makes it possible to design the side walls S1 and S5 or S2 and S6 with only half the height and corresponding adhesive straps in order to save on material in the folding blank Z. After the folding blank Z is set up, the side wall S4 can be glued to a short adhesive strap K that is hinged on the opposite side of the base plate DB, in order to produce a shipping package PK that is closed all around on the side surfaces.
The variants of
The folding blank Z in general comprises a cover plate D as a central blank element, which in the folded or arranged state of the folding blank Z defines an upper flat plane of the formed shipping package. The cover plate D has a square outside contour and has in its interior an inside cutaway Q, which has a square shape at the point relative to the square outside contour of the cover plate D. The inside cutaway Q defines the lower edges of inside-wall flaps L1 to L4 that are formed by parts of the cover plate D.
In the example of
On the front sides of the side walls S3 and S4, in each case intermediate-wall straps B1 to B4 are hinged via side-wall strap knuckle lines. In each case, the folding blanks Z of
The intermediate-wall flaps B1 to B4 can be attached inward to the insides of the side walls S3 or S4 that are folded downward according to an arrangement of the side walls S1 to S2 and are glued there with the insides of the side walls S3 or S4.
In the interior of the cover plate D, the inside cutaway Q is arranged concentrically to a convex octagonal sequence that consists of scoring lines T1 to T4 that adjoin one another and scoring line/groove line combinations O1 to O4. In this case, the scoring lines T1 to T4 in each case run parallel to the side-wall knuckle lines D1 to D4. Between the ends of each two adjacent scoring lines T1 to T4, each one of the scoring line/groove line combinations O1 to O4 runs at a 45° angle thereto. Since the scoring lines T1 to T4 are in each case the same length and the scoring line/groove line combinations O1 to O4 are also in each case the same length, the sequence that consists of scoring lines T1 to T4 and scoring line/groove line combinations O1 to O4 forms a double symmetrical octagon. The scoring line/groove line combinations O1 to O4 run parallel to the edges of the inside cutaway Q based on this double symmetry.
The scoring line/groove line combinations O1 to O4 have groove lines in a central area and are cut in the respective outside areas. Thus, the inside-wall flaps L1 to L4 that are formed from parts of the inside area of the cover plate D are made partially free-standing at the edges and are ultimately separated from one another by combinations of separation cuts. In this case, flap main separation cuts HT1 to HT4 first run from one of the corner points of the inside cutaway Q in the direction of the center of the respectively opposite scoring lines T1 to T4. The flap main separation cuts HT1 to HT4 are inserted perpendicular to this scoring line in the cover plate D. The flap main separation cuts HT1 to HT4 in each case end at a bifurcation point P at a point along the stretch between the respective corner of the inside cutaway Q and the center of the scoring lines T1 to T4 that are opposite in each case.
In each case, two from a total of eight flap free-position separation cuts G11 to G42 then branch from the bifurcation point P. The flap free-position separation cuts G11 to G42 in this case connect to the flap main separation cuts HT1 to HT4 and run symmetrically to one another to the axis of the related flap main separation cuts HT1 to HT4 from the bifurcation point P up to the respective scoring line T1 to T4. As a result, an approximately delta-shaped cutaway is made free-standing between two of the flap free-position separation cuts G11 to G42 and the respective scoring line T1 to T4, so that the inside-wall flaps L1 to L4 thus have a convex octagonal outside contour, which is formed in each case by an inside edge of the inside cutaway Q, one of the scoring line/groove line combinations O1 to O4, two of the flap main separation cuts HT1 to HT4, two of the flap free-position separation cuts G11 to G42 and in each case one-half of two of the scoring lines T1 to T4. Because of the free-standing nature of the inside-wall flaps L1 to L4 at all edges of the outside contour thereof up to the edge formed by the respective one of the scoring line/groove line combinations O1 to O4, the inside-wall flaps L1 to L4 can be folded through relative to the cover plate plane of the cover plate D into the drawing plane of
Unlike in the variants of
The paths of the flap free-position separation cuts G11 to G42 can in this case be selected specifically, since no more locking straps whatsoever are to be made. To allow an improved free-standing nature of the edge areas outside of the inside-wall flap score line combinations R1 to R4, various possibilities can be taken into consideration. For example, the flap main separation cuts HT1 to HT4 between the bifurcation point P and the inside cutaway Q can be weakened by a rhombic recess (see
Moreover, specific scoring-line or groove-line paths in the area of the side walls and/or the intermediate-wall flaps of
The goods, such as, for example, tarts or cakes, which are accommodated in a shipping package PK that is set up from one of the folding blanks Z that are further described above, can be stored on a separate shipping base before they are accommodated in the shipping package P, since the shipping package PK is open on the base side due to production requirements. In a like manner, when the shipping package PK is removed, the packaged goods remain on the separate shipping base and the latter are removed optionally only at a later time.
In many variant embodiments, it can also be possible to hinge a base plate as a shipping base that is integrated into the folding blank Z on one of the side walls of the folding blank Z. As a result, when the folding blank Z is folded, the shipping base is made integral with the shipping package PK. The hinged shipping base can be secured, for example, via additional plug-in connections to the opposite side wall.
In addition, the shipping package PK can be used as inner packaging for another outer packaging, for example a customary rectangular folding package or a circumferential folding sleeve. As a result, it is not absolutely necessary that the shipping package PK or the underlying folding blank Z have decorations or markings printed on it—such printing, for example for retail or wholesale, can be applied to the outside packaging.
The shipping packages PK that are to be folded from the depicted and described folding blanks Z are simple to produce since, except for optionally some material for an adhesive connection of the side-wall straps to the adjoining side walls, no additional tools or aids are necessary. Adaptation of various blank parts to one another also is avoided since the folding blank Z already exists in single-part or one-piece form.
The folding blanks Z offer the possibility of producing a mechanically stable shipping package PK, which is suitable, on the one hand, for the production of goods packaged therein, such as, for example, foodstuffs in the confectionery field. In the shipping package PK, intermediately-packaged and essentially cylindrical pastry products, such as, for example, custard pies, cream tarts, ice cream cakes, wafers, pyramid cakes, gingerbread or the like are protected against shifting within an outer package that is designed around the shipping package PK.
On the other hand, the shipping package PK that is produced from the folding blanks Z can also be used within the framework of the manufacture of pastry products, for example to ensure more reliable shipping of cylindrical tarts or cakes from one processing station to the next. For example, first for producing custard pies, tart blanks can first be baked from one or more layers of tart bases. These tart blanks can then be intermediately packaged in shipping packages PK in order to ensure the stability of the tart blanks during shipping and to prevent tart blanks that are lying beside one another from sliding into one another. When the tart blanks are cooled, they can be moved from the baking station to a frosting station, where the shipping packages PK are removed again, and the tart blanks can be frosted with custard cream and/or other decorations such as fondant.
Moreover, the folding blanks Z make possible an extremely efficient and permanent production, since in the production of folding blanks Z, very little scrap and thus very little waste accumulates. This is of great advantage in particular when using the shipping package PK that is produced from the folding blanks Z as a temporary protective package within the manufacture of pastry products. However, even when the shipping package PK is used as intermediate packaging of confectionery goods that are to be supplied to end customers, the folding blanks that consist of corrugated cardboard or cardboard offer advantages, since, on the one hand, they are lightweight and, on the other hand, they can replace package material that is cumbersome to dispose of and not always environmentally sound, such as Styrofoam molded parts.
REFERENCE SYMBOL LIST
- A1, . . . , A4 Groove line areas
- A11, . . . , A42 Locking strap receptacles
- A5, . . . , A8 Locking strap receptacles
- AB1, . . . , AB4 Flap receptacles
- AL1, . . . , AL4 Locking strap receptacles
- B1, . . . , B4 Side-wall straps/Intermediate-wall flaps
- B12, B34 Intermediate-wall flaps
- C1, . . . , C4 Inside-flap reinforcements
- D Cover plate
- DB Base plate
- d Projection width
- D1, . . . , D4 Side-wall knuckle lines
- E1, . . . , E4 Side-wall reinforcements
- E5, . . . , E8 Side-wall locking straps
- E9, . . . , E12 Side-wall corner reinforcements
- F11, . . . , F42 Locking straps
- FL1, . . . , FL4 Mating locking straps
- G11, . . . , G42 Flap free-position separation cuts
- H1, . . . , H4 Flap main separation cuts
- L1, . . . , L4 Inside-wall flaps
- LB1, . . . , LB4 Inside-flap reinforcements
- LT1, . . . , LT4 Flap separation cuts
- M1, . . . , M4 Side-wall strap knuckle lines
- O1, . . . , O4 Inside-wall flap knuckle lines
- P Bifurcation point
- PK Shipping package
- Q11, . . . , Q34 Intermediate-wall flap sections
- Q Inside cutaway
- QB Base plate cutaway
- R1, . . . , R4 Inside-wall flap score line combinations
- S1, . . . , S4 Side walls
- T1, . . . , T4 Scoring lines
- U1, . . . , U8 Double groove lines
- Z Folding blank
Claims
1. One-piece folding blank (Z), in particular that consists of corrugated cardboard or cardboard, with:
- a cover plate (D) with a square outside contour;
- four side walls (S1, S2, S3, S4) that are hinged on the cover plate (D) via side-wall knuckle lines (D1, D2, D3, D4);
- a square inside cutaway (Q) that is arranged in the center of the cover plate (D); and
- an essentially convex octagonal sequence that consists of scoring lines (T1, T2, T3, T4) and groove lines (O1, O2, O3, O4) that adjoin one another and that are cut into the cover plate (D) around the inside cutaway (Q).
2. Folding blank (Z) according to claim 1, in addition with:
- four flap main separation cuts (HT1, HT2, HT3, HT4), which are cut from the respective corners of the inside cutaway (Q) in the direction of the center of the scoring line (T1, T2, T3, T4) that is opposite in each case and perpendicular to this scoring line in the cover plate (D); and
- eight flap free-position separation cuts (G11, G12, G21, G22, G31, G32, G41, G42), of which in each case two run at a bifurcation point (P) at a point along the stretch between the respective corners of the inside cutaway (Q) and the center of the respectively opposite scoring line (T1, T2, T3, T4) from the flap main separation cut (HT1, HT2, HT3, HT4) symmetrically to one another to the axis of the flap main separation cut from the bifurcation point (P) up to the respective scoring line (T1, T2, T3, T4).
3. Folding blank (Z) according to claim 2, whereby along the eight flap free-position separation cuts (G11, G12, G21, G22, G31, G32, G41, G42), in each case locking straps (F11-F42) are released for the inside-wall flaps (L1, L2, L3, L4) between the bifurcation point (P) and the respective scoring line (T1, T2, T3, T4) for the inside-wall flaps (L1, L2, L3, L4).
4. Folding blank (Z) according to claim 3, whereby the free-standing locking straps (F11-F42) are hinged via the straight connection between bifurcation point (P) and groove lines following the respective scoring line (T1, T2, T3, T4) at the inside-wall flaps (L1, L2, L3, L4).
5. Folding blank (Z) according to claim 2, in addition with:
- intermediate-wall flaps (B1, B2, B3, B4, B12, B34) that are hinged on two opposite ones of the side walls (S1, S2, S3, S4) via intermediate-wall knuckle lines.
6. Folding blank (Z) according to claim 5, whereby in the intermediate-wall flaps (B1, B2, B3, B4, B12, B34), locking strap receptacles (A11-A42) are inserted into the intermediate-wall flaps (B1, B2, B3, B4, B12, B34) as cutaways.
7. Folding blank (Z) according to claim 2, whereby in the inside-wall flaps (L1, L2, L3, L4), locking strap receptacles (AL1, AL2, AL3, AL4) are inserted into the inside-wall flaps (L1, L2, L3, L4) as cutaways.
8. Folding blank (Z) according to claim 7, in addition with:
- intermediate-wall flaps (B12, B34) that are hinged on two opposite ones of the side walls (S1, S2, S3, S4) via intermediate-wall knuckle lines, on which flaps mating locking straps (FL1, FL2, FL3, FL4) are hinged for latching with the locking strap receptacles (AL1, AL2, AL3, AL4) of the inside-wall flaps (L1, L2, L3, L4).
9. Folding blank (Z) according to claim 2, in addition with:
- a base plate (DB) that is hinged on one of the side walls (S3) via a side-wall knuckle line (DS3) with a square base plate cutaway (QB) that is arranged in the center of the base plate (DB) and an essentially convex octagonal sequence that consists of scoring lines and groove lines that adjoin one another and that are inserted into the base plate (DB) around the base plate cutaway (QB).
10. Folding blank (Z) according to claim 9, whereby inside-flap reinforcements (LB1, LB2, LB3, LB4) are made free-standing in the convex octagonal sequence of the base plate (DB).
11. Folding blank (Z) according to claim 10, whereby flap receptacles (AB1, AB2, AB3, AB4) are inserted into the inside-flap reinforcements (LB1, LB2, LB3, LB4) as cutaways, which can be latched in each case with a lower outside edge of one of the inside-wall flaps (L1, L2, L3, L4).
12. Folding blank (Z) according to claim 1, in addition with:
- four flap separation cuts (LT1, LT2, LT3, LT4), which in the cover plate (D) run perpendicular to the scoring lines (T1, T2, T3, T4) from the center in each case of one of the scoring lines (T1, T2, T3, T4) to in each case a corner of the square inside cutaway (Q).
13. Folding blank (Z) according to claim 12, whereby four inside wall flaps (L1, L2, L3, L4) are released from the cover plate (D) and in each case have a convex hexagonal outside contour, which is formed in each case by an inside edge of the inside cutaway (Q), one of the groove lines (O1, O2, O3, O4), two of the flap separation cuts (LT1, LT2, LT3, LT4) and in each case one-half of two of the scoring lines (T1, T2, T3, T4).
14. Folding blank (Z) according to claim 13, whereby along one part of the outside contour of each of the inside-wall flaps (L1, L2, L3, L4), each two locking straps (F11-F42) are made free-standing in corners of the inside-wall flaps (L1, L2, L3, L4) that are formed by the flap separation cuts (LT1, LT2, LT3, LT4) and the scoring lines (T1, T2, T3, T4).
15. Folding blank (Z) according to claim 14, whereby in the side walls (S1, S2, S3, S4), each two locking strap receptacles (A11-A42) are inserted as cutaways into the side walls (S1, S2, S3, S4).
16. Folding blank (Z) according to claim 1, whereby side-wall straps (B1, B2, B3, B4) in each case are hinged via side-wall strap knuckle lines (M1, M2, M3, M4) on the front sides of two of the side walls (S1, S2).
17. Folding blank (Z) according to claim 16, whereby the side-wall straps (B1, B2, B3, B4) in each case have a width that is reduced relative to the width of the side walls (S1, S2).
18. Folding blank (Z) according to claim 1, whereby two of the side walls (S3, S4) in each case are provided on the front-side end sections with double groove lines (U1, U2, U3, U4) that run diagonally to the width of the side walls (S3, S4).
19. Folding blank (Z) according to claim 1, which is formed from corrugated cardboard of the F-wave or E-wave wave type.
20. Shipping package (PK), which is produced from a folding blank (Z) according to claim 1.
21. Shipping package (PK) for confectionery goods, which is produced from a folding blank (Z) according to claim 15, whereby the inside-wall flaps (L1, L2, L3, L4) and the side walls (S1, S2, S3, S4) are folded downward relative to the cover plate (D) by 90° and whereby the locking straps (F11-F42) have been engaged in each case with one of the locking strap receptacles (A11-A42).
22. Shipping package (PK) for confectionery goods, which is produced from a folding blank (Z) according to claim 11, whereby in each case, two of the inside-wall flaps (L1, L2, L3, L4) and the inside-flap reinforcements (LB1, LB2, LB3, LB4) lie parallel to one another, and the inside-wall flaps (L1, L2, L3, L4) are latched with the inside-flap reinforcements (LB1, LB2, LB3, LB4) via the flap receptacles (AB1, AB2, AB3, AB4).
Type: Application
Filed: Nov 22, 2019
Publication Date: Jun 11, 2020
Applicant: Coburger Kartonagenfabrik GmbH & Co. KG (Dorfles-Esbach)
Inventors: Alex HESSEL (Dorfles-Esbach), Steffen THEISS (Dorfles-Esbach)
Application Number: 16/691,899