WO2016198317A1

WO2016198317A1 - Blank and three-dimensional structure produced therefrom

Info

Publication number: WO2016198317A1
Application number: PCT/EP2016/062548
Authority: WO
Inventors: Uwe Theis; Jürgen Kollmann
Original assignee: Mayr-Melnhof Karton Ag
Priority date: 2015-06-12
Filing date: 2016-06-02
Publication date: 2016-12-15
Also published as: JP6496426B2; RU2018100652A3; EP3103740B1; KR102033111B1; RU2018100652A; RU2704885C2; EP3103740A1; KR20180011803A; MX2017016079A; US20180178944A1; JP2018516818A; PH12017502256A1

Abstract

The present invention relates to a blank (10) for producing a three-dimensional structure of paper, cardboard or plastic, in particular. The invention further relates to a three-dimensional structure produced from the blank, a folding box for storing goods, in particular a folding box made from cardboard, paper or the like as well as to a method for producing the blank (10).

Description

Blank and resulting three-dimensional structure

Description:

The present invention relates to a blank for producing a three-dimensional structure of paper, cardboard or plastic, in particular a packaging or the like, comprising at least one folding surface for forming a rounded edge region of the three-dimensional structure in a folded state of the blank, wherein the folding surface by two parallel to each other extending lateral fold lines is limited. The invention further relates to a three-dimensional structure made of paper, cardboard or plastic, a folding box for storing goods, in particular folding box made of cardboard, paper or the like, and a method for producing a blank.

Such blanks, three-dimensional structures and cartons are known in a wide variety. Among other things, these blanks or three-dimensional structures or folding boxes are folding boxes, which are a widely used form of packaging for cigarettes and the like. Thus, DE 43 11 568 A1, EP 2 141 090 A1, DE 101 06 547 A1, US Pat. No. 6,276,600 B1 and DE 600 28 078 T2 describe packages in the form of a prismatic body along their longitudinal axis, wherein a container-like Receiving area a lid is hinged. From WO 2012/123189 A1 are

Folding cartons with rounded edge areas known. The rounded edge areas are achieved by a variety of cuts in these areas. The cuts produce a large number of individual surfaces which can be folded into a rounded edge region as a whole. A disadvantage of this known packaging, however, that the formation of the rounded

Edge areas a variety of cuts is needed. The preparation of appropriate punching tools is extremely time consuming and therefore expensive. A production by means of laser energy is due to the large number of required Cutting lines relatively time consuming and energy-intensive.

It is therefore an object of the present invention to provide a generic blank for producing a three-dimensional structure made of paper, cardboard or plastic, a corresponding three-dimensional structure, a corresponding folding box made of paper, cardboard or plastic and a method for producing said blank, which simply, is fast and inexpensive to produce or feasible. To solve these objects are a blank with the features of claim 1, a three-dimensional structure with the features of claim 9, a carton with the features of claim 12 and a method having the features of claim 15. Advantageous embodiments with expedient developments of the invention specified in the respective subclaims, wherein advantageous embodiments of the blank are to be regarded as advantageous embodiments of the inventive three-dimensional structure or the carton according to the invention and the method according to the invention and vice versa. A first aspect of the invention relates to a blank for producing a three-dimensional structure of paper, cardboard or plastic, in particular a packaging or the like, comprising at least one folding surface for forming a rounded edge region of the three-dimensional structure in a folded state of the blank, wherein the folding surface by two is limited parallel to each other lateral fold lines. According to the invention is within the

Folding line formed at least one extending at an angle to the lateral fold lines crease line. Surprisingly, it has been found that a rounded edge region of the three-dimensional structure can already be produced in a correspondingly folded state of the blank by means of such a score line. As a result, the time required for the preparation of appropriate punching or

Creasing tools for the design of this crease line are significantly reduced. In addition, compared to known blanks significantly less laser energy for the production of the score line according to the invention and thus to the embodiment rounded edge regions of, for example, packaging, in particular cigarette packaging, are used. Known blanks have, for example, five to seven parallel to the folding surface laterally limiting fold lines extending bending lines. Due to the inventive design of the score line within the folding surface, the number of score lines can be significantly reduced. In addition to corresponding cost savings, the production speed between 25 and 75% compared to conventional blanks can be increased. The creasing lines for producing the rounded edge region can thereby be cut lines, that is to say as cuts which pass completely through the blank or the substrate of the blank, or as halfcuts, that is to say incompletely through the blank or the substrate of the blank line-shaped recesses, In addition, the creasing lines can be arranged on the inside and / or the outside of the blank or the blank in the folded state, namely the resulting folding box 15. For example, all creasing lines and / or lateral folding lines are formed on the inside or outside of the blank But it is also conceivable that different creasing and / or lateral fold lines on different sides, ie a front and / or back of the blank can be arranged and thereby a particularly memorable pattern on the carton in gef stamp out the old condition of the blank.

In a further advantageous embodiment of the blank according to the invention, the lateral fold lines and the score line are produced by means of laser energy and / or punching. By an exclusive or at least partial use of

Laser energy for the preparation of the blank, the corresponding elements of the blank can be made very accurately and quickly. In addition, changes in the design of individual elements can be carried out particularly simply and quickly, without, for example, having to produce new stamping or embossing tools. In addition, results from the present invention of

Advantage that less powerful or slower laser can be used to produce the creasing lines according to the invention, resulting in a significant cost advantage in the production of the blank. by virtue of The significantly less required crease lines compared to known blanks for forming a rounded edge region of the three-dimensional structure produced from the blank still results in a significantly higher production and production speed.

In further advantageous embodiments of the blank according to the invention, the creasing line formed within the folding surface extends between a first end and / or corner region of the folding surface and a second end and / or corner region of the folding surface opposite the first end and / or corner region. But it is also possible that the score line between a first end and / or corner of the folding surface and a region which is spaced from a first end and / or corner opposite the second end and / or corner area extends. In addition, there is the possibility that the creasing line is formed outside of a first end and / or corner region of the folding surface and outside a second end and / or corner region of the folding surface opposite the first end and / or corner region within the folding surface. Due to the refinement of the invention, the most varied courses of the score line within the fold surface are conceivable for the final design of a rounded edge region of the three-dimensional structure. As a result, corresponding design specifications can be easily met.

In further advantageous embodiments of the blank according to the invention, at least one end of the score line intersects or adjoins a corresponding lateral fold line of the fold surface. Again, the design of the score line within the folding surface can meet corresponding production and / or design specifications.

In further advantageous embodiments of the blank according to the invention, the folding surface is subdivided into at least two subregions by means of the at least one score line, wherein the subregions are each triangular in shape. By the

Triangular shape of the sub-areas result in particularly advantageous designed rounding in the folded state of the blank. In this case, further score lines can be formed in at least one of the subregions so that further, in particular finer rounding structures can be formed in these areas.

In further advantageous embodiments of the blank according to the invention, the score line is straight, curved, wave-like, meandering, step-like or of corresponding combinations thereof. In addition, the crease line can be formed as a continuous or interrupted creasing line between the lateral fold lines. Advantageously, this in turn can be met a variety of design requirements.

A second aspect of the present invention relates to a three-dimensional structure of paper, cardboard or plastic, which is produced by folding and / or gluing a blank, as has been described above. The design possibilities and advantages of a three-dimensional structure produced in this way result from the design possibilities and advantages of the described blank according to the invention described above also according to the first aspect of the invention. In this case, the three-dimensional structure can be designed as a packaging, in particular as a packaging for the storage of cigarettes.

A third aspect of the present invention relates to a carton for storing goods, in particular a carton, paper or the like carton, wherein the carton at least one front wall, at least one rear wall and at least one first and second side wall for connecting the front and rear walls and a floor construction to the bottom

Closure of the carton and a plurality of folding surfaces for forming each of a rounded edge portion of the carton comprises. In this case, according to the invention, at least one folding surface is bounded by lateral fold lines, wherein at least one score line extending at an angle to the lateral fold lines is formed within the fold surface. Such a carton can be made much cheaper compared to known cartons with rounded edge areas, since for the design of the rounded edge portions of the carton only one or at least one in the corresponding fold surface trained crease line must be present. Both in the mechanical production by punching, grooving or embossing as well as the use of laser energy for the production of the crease line, there are significant time and cost advantages.

In further advantageous embodiments of the folding box according to the invention, at least one end of the score line intersects or adjoins a corresponding lateral folding line of the folding surface. In addition, the crease line can be formed as a continuous or interrupted creasing line between the lateral fold lines. Even with these refinements of the score line within the fold surface, rounded edge regions of the folding box can be produced simply and cost-effectively. In addition, a wide variety of design requirements for these areas of the carton can be dealt with easily. In addition, the score lines can be arranged on the inside and / or the outside of the folding box. For example, all score lines and / or lateral fold lines are formed on the inside or outside of the folding box. But it is also conceivable that different creasing and / or lateral fold lines on different sides, i. can be arranged on the inside and / or back of the carton and thereby express a particularly memorable pattern on the carton.

Further features and their advantages will become apparent from the description of the first and second aspect of the invention, wherein advantageous embodiments of the first and second aspects of the invention are to be regarded as advantageous embodiments of the third aspect of the invention and vice versa.

A fourth aspect of the invention relates to a method of making a blank as described above. According to the invention, an outer contour of the blank and / or fold lines and / or cut lines and / or an inner contour of the blank and / or score lines can be generated by means of laser energy. Due to the exclusive or at least partial use of laser energy for the production of the blank, the corresponding elements of the blank can be produced very accurately and quickly. In addition, changes in the design of individual elements can be particularly be performed easily and quickly, without, for example, new stamping or embossing tools must be made.

Further advantages, features and details of the invention will become apparent from the following description of two embodiments and with reference to the drawings. The features and combinations of features mentioned above in the description as well as the features and feature combinations mentioned below in the description of the figures and / or shown alone in the figures can be used not only in the respectively specified combination but also in other combinations, or in isolation, without the frame to leave the invention.

1 shows a schematic representation of a blank according to the invention according to a first embodiment; and

Figure 2 is a schematic representation of a blank according to the invention according to a second embodiment.

1 shows a schematic representation of a blank 10 for producing a three-dimensional structure of cardboard. The three-dimensional structure is a packaging, in particular a folding box. The blank comprises wall and floor elements 12, 14, 16, 26, 28, 30, 32 connected via folding surfaces 50, 52, 54, 56 and fold lines 82, 84 for forming at least one container-like receiving area in the folded state of the blank 10 (FIG. not shown). Furthermore, it can be seen that the rear wall 16 via a bending line 86 with a first cover wall 22, the first cover wall 22 via a bending line 88 with a second cover wall 18 and the second cover wall 18 via a third bending line 90 with a third cover wall 20 to form a

Closure cap 92 in the folded state of the blank 10 (not shown) are connected. The first cover wall 22 is also connected via the folding surfaces 54, 56 with cover side walls 34, 36. The third cover wall 20 is over folded edges 58, 58 'with further cover side walls 38, 40 are connected. In addition, adhesive tabs 46, 48 are formed on the lid side walls 34, 36 via bending lines 94, 96, which abut in the folded state of the blank 10 on an inner side of the second lid wall 18 and are glued thereto. On the side opposite the second cover wall 18 side, the third cover wall 20 also has a bending line 92 ', via which it is connected to a further adhesive tab 24.

It can be seen that the folding surfaces 50, 52 are bounded by lateral fold lines 60, 62, 64, 66. Within the fold surface 50, two score lines 70, 72 are formed, each extending at an angle to the lateral fold lines 60, 62. In this case, the score line 70 extends between a first end and / or corner region 120 of the folding surface 50 and a region spaced from a second end and / or corner region 122 opposite the first end and / or corner region 120. This area lies on the lateral fold line 60. In this case, the score line 70 intersects the fold line 60 or adjoins it. On the other hand, the second score line 72 formed in the fold area 50 extends from the second end and / or corner area 122 in the direction of the intersection of the first score line 70 with the lateral fold line 60 and adjoins the corresponding end of the first score line 70. As a result of this embodiment of the score lines 70, 72, three partial areas 106, 108, 110 are formed within the folding area 50. The partial areas are each triangular in shape and result in a rounded edge area when folded in the blank 10. In the also adjacent to the front wall 12 folding surface 52 only a score line 68 is formed. This extends between the first end and / or corner region 120 of the folding surface 52 and the corresponding opposite second end and / or corner region 122 of the folding surface 52. This embodiment results in two likewise triangular-shaped partial surfaces 102, 104 within the folding surface 52 In the folded state of the blank 10, these triangular sections 102, 104 again have a rounded edge region between the front wall 12 and the side wall 28.

Furthermore, it can be seen that the further folding surfaces 54, 56, 58, 58 ', which likewise result in rounded edge regions in the folded state of the blank 10, by a plurality of parallel to the corresponding lateral fold lines 112, 114, 116, 118 extending score lines 74, 76, 78, 80 are formed. Such a configuration of the folding surfaces 54, 56, 58, 58 'is known from the prior art. It can be seen that the configuration of the folding or rounding surfaces 54, 56, 58, 58 'differs significantly from those of the folding surfaces 50, 52.

Furthermore, it can be seen that the score lines 68, 70, 72 are formed straight and as continuous lines between the lateral fold lines 60, 62, 64, 66. But other design options of creasing lines 68, 70, 72 are conceivable.

Furthermore, it can be seen that the folded surfaces 50, 52, 54, 56, 58, 58 'in the folded state of the blank 10 each have a rounded fold region between the respective wall and floor elements 12, 16, 22, 20 and the adjacent side walls 26, 28, 30, 32 and the cover side walls 34, 36, 38, 40 form. In addition, the corners of the bottom element 14 and the second cover wall 18 are rounded, so that the shape of these two elements adapts to the shape of the folded surfaces in the folded state of the blank 10. Furthermore, it becomes clear that the side walls 30, 32 have adhesive tabs 46, 48 articulated via respective bending lines 98, 100, the adhesive tabs 46, 48 being glued to an inner surface of the bottom element 14 in the folded state of the blank 10 (not shown). At the adhesive tabs 46, 48 opposite ends of the side walls 30, 32 these are separated by corresponding cut lines of the cover side walls 34, 36. The

Cut lines run up to the respective starting point of the bending line 86, which is formed between the rear wall 16 and the first lid wall 22. The adhesive tabs 46, 48 serve in conjunction with the bottom element 14 to form a bottom construction 90 in the folded state of the blank 10.

FIG. 2 shows a schematic representation of a second embodiment of the blank 10. It can be seen that this second embodiment has the shape shown in FIG shown first embodiment is almost identical, so reference is made to the description of Figure 1 in the description of the figures. In contrast to the first embodiment, the blank 10 according to the second embodiment, another embodiment of the folding surfaces 50, 52. It can be seen that the folding surfaces 50, 52, which in turn in the folded state of the blank 10 form rounded edge regions, initially have two creasing lines 70, 72 extending within the folding surfaces 50, 52 at an angle to the lateral folding lines 60, 62, 64, 66 , The creasing lines 70, 72 intersect in a lying on the side fold lines 60, 64 point. This intersection is arranged in a central region of the folding surfaces 50, 52. As a result of this arrangement of the creasing lines 70, 72, three subregions 106, 108, 110 within the folding surfaces 50, 52 result. The subregions 106, 108, 110 are triangular in this case. In contrast to the exemplary embodiment illustrated in FIG. 1, further creasing lines 124 are formed within two partial areas 106, 110. The score lines 124 run parallel to the lateral fold lines 60, 62, 64, 66. The configuration of these further score lines 124 results in a particularly pronounced and fine rounding structure. By contrast, the further subregion 108 has no further creasing lines, so that this embodiment too can be produced more cost-effectively and more quickly compared with known blanks having rounded edge regions.

The described blanks 10 for producing three-dimensional structures or folding boxes usually consist of cardboard, paper or plastic. Other suitable materials are conceivable. The blanks 10 can be produced by punching and / or by means of laser energy. Other suitable manufacturing methods are conceivable.

Claims

Claims:

A blank (10) for producing a three-dimensional structure from paper, cardboard or plastic, in particular a packaging or the like, comprising at least one folding surface (50, 52) for forming a rounded edge region of the three-dimensional structure in a folded state of the blank (10). wherein the folding surface (50, 52) is delimited by two parallel side fold lines (60, 62, 64, 66),

characterized,

in that at least one creasing line (68, 70, 72) running at an angle to the lateral fold lines (60, 62, 64, 66) is formed within the folding surface (50, 52).

2. blank (10) according to claim 1,

characterized,

in that the lateral folding lines (60, 62, 64, 66) and the score line (68, 70, 72) are produced by means of laser energy and / or punching.

3. Blank (10) according to one of the preceding claims,

characterized,

in that the score line (68, 70, 72) between a first end and / or corner region (120) of the folding surface (50, 52) and a second end and / or opposite the first end and / or corner region (120)

Corner region (122) of the folding surface (50, 52) or between a first end and / or corner region (120) of the folding surface (50, 52) and a region which is opposite from the first end and / or corner region (120) End and / or corner region (122) is spaced extends.

4. blank (10) according to any one of claims 1 and 2,

characterized, in that the creasing line is formed outside a first end and / or corner region (120) of the folding surface and outside a second end and / or corner region (122) of the folding surface opposite the first end and / or corner region (120) within the folding surface ,

5. Blank (10) according to one of the preceding claims,

characterized,

at least one end of the score line (68, 70, 72) intersects or adjoins a corresponding lateral fold line (60, 62, 64, 66) of the fold surface (50, 52).

6. Blank (10) according to one of the preceding claims,

characterized,

the folding surface (50, 52) is divided into at least two partial regions (102, 104; 106, 108, 110) by means of the at least one score line (68, 70, 72), the partial regions (102, 104; 106, 108 , 110) are triangular in each case.

7. blank (10) according to claim 6,

characterized,

that further creasing lines (124) are formed in at least one partial area (102, 104; 106, 108, 110).

8. Blank (10) according to one of the preceding claims,

characterized,

the score line (68, 70, 72) is straight, curved, wave-like, meandering, step-like or combinations thereof.

9. Blank (10) according to one of the preceding claims,

characterized,

in that the score line (68, 70, 72) is in the form of a score line which is continuous or interrupted between the lateral fold lines (60, 62; 64, 66). Three-dimensional structure of paper, cardboard or plastic, which is produced by folding and / or gluing a blank (10) according to one of the preceding claims. Three-dimensional structure according to claim 10,

characterized,

that the three-dimensional structure is a packaging, in particular a packaging for the storage of cigarettes.

Folding box for storing goods, in particular folding box made of cardboard, paper or the like, comprising

at least one front wall (12), at least one rear wall (16) and at least one respective first and second side wall (26, 30, 28, 32) for connecting the front and rear walls (12, 16),

a bottom construction (90) for the bottom closure of the carton, and

a plurality of folding surfaces (50, 52, 54, 56, 58, 58 ') for forming in each case a rounded edge region of the folding box,

characterized,

in that at least one fold surface (50, 52) is bounded by lateral fold lines (60, 62; 64, 66) and at least one within the fold surface (50, 52) at an angle to the lateral fold lines (60, 62; 64, 66). extending score line (68, 70, 72) is formed.

Folding box according to claim 12,

characterized,

Folding box according to claim 12 or 13,

characterized,

in that the score line (68, 70, 72) is defined as between the lateral fold lines (60, 62; 64, 66) is formed continuous or interrupted creasing line.

Process for producing a blank (10) according to claims 1 to 9,

characterized,

an outer contour of the blank (10) and / or fold lines (60, 62, 64, 66, 82, 84, 86, 88, 90, 92, 94, 96, 98, 100) and / or cut lines and / or an inner contour the blank (10) and / or creasing lines (68, 70, 72, 74, 76, 78, 80) are generated by means of laser energy.