Abstract
Provided is a package made of a composite material is represented and described, including a package base with two front base corners and with two rear base corners, a package gable with two front gable corners and with two rear gable corners, and a package base body with a front panel, a first side panel, a second side panel and a rear panel. The package base and the package gable are arranged on opposite sides of the package base body. The composite material has a polymer inner layer, a polymer outer layer and a fibrous support layer, which is arranged between the polymer outer layer and the polymer inner layer. In order to enable the manufacture of packages with even more complex geometries without impairing the rigidity of the package, it is proposed to provide a third sleeve fold line, which has a plurality of sections, which each adjoin a side panel and the rear panel, and of which at least one section is curved.
Claims
1. A package made of composite material, comprising: a package base with two front base corners and with two rear base corners, a package gable with two front gable corners and with two rear gable corners, and a package base body with a front panel, a first side panel, a second side panel and a rear panel, wherein the package base and the package gable are arranged on opposite sides of the package base body, wherein the composite material has a polymer outer layer, a polymer inner layer and a fibrous support layer, which is arranged between the polymer outer layer and the polymer inner layer, and a third sleeve fold line, which has a plurality of sections, which each adjoin a side panel and the rear panel, and of which at least one section is curved, wherein at least one section of the third sleeve fold line is straight and/or at least two sections of the third sleeve fold line have opposite curvature direction.
2. (canceled)
3. The package according to claim 1, wherein the third sleeve fold line ends with one of its two ends at one of the two rear gable corners and ends with its other end at one of the two rear base corners.
4. The package according to claim 3, wherein the section of the third sleeve fold line adjoining the package base and the section of the third sleeve fold line adjoining the package gable are straight.
5. (canceled)
6. The package according to claim 1, wherein the package base body has at least one stress-relief panel which is arranged between the front panel and one of the two side panels.
7. The package according to claim 6, wherein the stress-relief panel and the front panel adjoin the same edge of the package, in particular an edge of the package base.
8. The package according to claim 6, wherein the stress-relief panel and one of the two side panels adjoin the same edge of the package, in particular an edge of the package gable.
9. The package according to claim 6, wherein a first sleeve fold line, which is preferably curved at least in sections, is provided between at least one stress-relief panel and the adjoining front panel.
10. The package according to claim 9. wherein the first sleeve fold line fends only with one of its two ends at one of the two front gable corners or at one of the two front base corners and does not end with its other end at a gable corner or at a base corner.
11. The package according to claim 1, wherein a second sleeve fold line, which is preferably curved at least in sections, is provided between at least one stress-relief panel and the adjoining side panel.
12. The package according to claim 11, wherein the second sleeve fold line ends only with one of its two ends at one of the two front gable corners or at one of the two front base corners and does not end with its other end at a gable corner or at a base corner.
13. The package according to claim 1, wherein the package has a fin seam in the region of the package gable, which is turned over in the direction of the front panel.
14. The package according to claim 1, wherein the package gable is approximately trapezoidal.
15. The package according to claim 1, wherein the package gable is an oblique gable.
16. The package according to claim 1, wherein the package gable has a front edge, which is curved and which adjoins the front panel.
17. The package according to claim 1, wherein the front panel is convex and/or the rear panel is at least partially concave.
18. The package according to claim 17, wherein the front panel has its maximum convex bulge above half the height of the package base body.
19. The package according to claim 1, wherein the two front gable corners have two large gable corner angles, which are each greater than 90°.
20. The package according to claim 1, wherein the two rear gable corners have two small gable corner angles which are each smaller than 90°.
21. The package according to claim 1, wherein the four gable corner angles have an angle sum, which is greater than 360°.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0029] The invention will be explained in more detail below with reference to a drawing which simply represents a preferred exemplary embodiment, in which is shown:
[0030] FIG. 1A: a package according to the invention in perspective view,
[0031] FIG. 1B: the package from FIG. 1A in a front view,
[0032] FIG. 1C: the package from FIG. 1A in a rear view,
[0033] FIG. 1D: the package from FIG. 1A in a side view,
[0034] FIG. 2A: a first region of the package from FIG. 1A in enlarged view, and
[0035] FIG. 2B: a second region of the package from FIG. 1A in enlarged view.
DESCRIPTION OF THE INVENTION
[0036] FIG. 1A shows a package 1 according to the invention in perspective view. FIG. 1B shows the package 1 from FIG. 1A in a front view, FIG. 1C in a rear view and FIG. 1D in a side view. The package 1 has a quadrangular package base B, which has two front base corners BV1, BV2 and two rear base corners BH1, BH2. The package 1 also has a quadrangular package gable G, which has two front gable corners GV1, GV2 and two rear gable corners GH1, GH2. In addition, the package 1 has a package base body K which comprises a front panel F, a first side panel S1, a second side panel S2 and a rear panel R. The package base body K is arranged between the package base B and the package gable G such that the package base B and the package gable G are arranged on opposite sides of the package base body K and form a sleeve surface of the package 1. The package 1 is partially or completely manufactured from a composite material which has a polymer outer layer, a polymer inner layer and a fibrous support layer, which is arranged between the polymer outer layer and the polymer inner layer. The fibrous support layer can for example be a layer of paper or cardboard. In the region of the package gable G, the package 1 has a fin seam 2, which is turned over in the direction of the front panel F. In the region of the package gable G, the package 1 also has two ears 3, of which one ear 3 is applied on the first side panel S1 and of which the second ear 3 is applied on the second side panel S2. In the region of the rear panel R, the package 1 has a longitudinal seam 4. The package gable G is approximately trapezoidal and designed as an oblique gable (like a pitched roof). The package gable G has a front edge V, which is curved in the direction of the front panel F and adjoins the front panel F. More detail will be given on the shape of the package gable in connection with FIG. 2A.
[0037] The package base body K of the package 1 shown in FIG. 1A to FIG. 1D has two stress-relief panels E1, E2, of which the first stress-relief panel E1 is arranged between the front panel F and the first side panel S1 and of which the second stress-relief panel E2 is arranged between the front panel F and the second side panel S2. The stress-relief panels E1, E2 therefore separate the front panel F from the two side panels S1, S2 and form a transition between the front panel F and the two side panels S1, S2. The first stress-relief panel E1 and the second stress-relief panel E2 lie in the region adjoining the package base B with the front panel F in sections in one plane. However, the first stress-relief panel E1 lies in the region adjoining the package gable G with the first side panel S1 in sections in one plane; similarly, the second stress-relief panel E2 lies in the region adjoining the package gable G with the second side panel S2 in sections in one plane. The two stress-relief panels E1, E2 are therefore assigned in their lower regions to a different side of the package 1 than in their upper regions; the two stress-relief panels E1, E2 therefore “wrap” around an imaginary package edge from the front panel F in the direction of one of the two side panels S1, S2.
[0038] In the package 1 shown in FIG. 1A to FIG. 1D, a first sleeve fold line M1, which is continuously curved, is provided between the front panel F and the first stress-relief panel E1. A first sleeve fold line M1, which is continuously curved, is also provided between the front panel F and the second stress-relief panel E2. The two first sleeve fold lines M1 adjoin, with their upper ends, the two front gable corners GV1, GV2. With their two lower ends, however, the two first sleeve fold lines M1 do not adjoin the two front base corners BV1, BV2, but rather at points of the lower front package edge located between them. In the package 1, a second sleeve fold line M2, which is continuously curved, is also provided between the first stress-relief panel E1 and the adjoining first side panel S1. A second sleeve fold line M2, which is continuously curved, is also provided between the second stress-relief panel E2 and the adjoining second side panel S2. The two second sleeve fold lines M2 adjoin, with their lower ends, the two front gable corners BV1, BV2. With their two upper ends, however, the two second sleeve fold lines M1 do not adjoin the two front gable corners GV1, GV2, but at points of the upper lateral package edges located between the front gable corners GV1, GV2 and the rear gable corners GH1, GH1. In package 1 shown in FIG. 1A to FIG. 1D, a third sleeve fold line M3 is provided between the first side panel 51 and the adjoining rear panel R. A third sleeve fold line M3 is also provided between the second side panel S1 and the adjoining rear panel R. The third sleeve fold line M3 adjoins, with its one end, one of the two rear gable corners GH1, GH2 and adjoins, with its other end, one of the two rear base corners BH1, BH2. More detail will be given on the exact course of the third sleeve fold line M3 in connection with FIG. 2B.
[0039] From the side view (FIG. 1D), it is particularly clear that the front panel F is convex, i.e. arched outwards. The front panel F has the maximum convex bulge above half the height of the package base body K. It is also discernible in FIG. 1D that the rear panel R is concave, i.e. arched inwards.
[0040] FIG. 2A shows a first region of the package 1 from FIG. 1A in enlarged view. The regions of the package 1 already described in connection with FIG. 1A to FIG. 1D are provided with corresponding reference numerals in FIG. 2A. The first region of the package represented in FIG. 2A relates to the region of the package gable G, in particular to the region of the front gable angle GV2 (and the gable corner angle α.sub.GV2) and to the region of the rear gable angle GH1 (and the gable corner angle α.sub.GH1). The same applies to the other half of the package gable G (not represented in FIG. 2A) due to symmetry. The four corners of the package gable G are not at right angles: The two front gable corners GV1, GV2 have front gable corner angles α.sub.GV1, α.sub.GV2, which are slightly larger than 90° (α.sub.GV1, α.sub.GV2>90°) and the two rear gable corners GH1, GH2 have rear gable corner angles α.sub.GH1, α.sub.GH2, which are slightly smaller than 90° (α.sub.GH1, α.sub.GH2<90°. For the rear gable corner angles α.sub.GH1, α.sub.GH2, the deviation from a right angle is due to the fact that the upper lateral package edges adjoining the rear gable corner angles α.sub.GH1, α.sub.GH2 do not run at right angles to the upper rear package edge, but are inclined by an angle β.sub.1 with respect to a vertical SRI (α.sub.GH1=α.sub.GH2=90°−β.sub.1). For the front gable corner angles α.sub.GV1, α.sub.GV2, the deviation from a right angle has two reasons: Firstly, the upper lateral package edges adjoining the front gable corner angles α.sub.GV1, α.sub.GV2 do not run at right angles to the rear package edge, but are inclined by an angle β.sub.2 with respect to a vertical SR2. Secondly, the front edge V also adjoining the front gable corner angles α.sub.GV1, α.sub.GV2 does not run straight, but curved in the direction of the front panel F, wherein the front edge V (or a tangent which touches the front edge V in the region of the front gable corners GV1, GV2 or the gable corner angle α.sub.GV1, α.sub.GV2 is inclined by an angle γ with respect to a horizontal WR (which runs parallel to the upper rear package edge) (α.sub.GV1=α.sub.GV2=90°+β.sub.2+γ). The angle β.sub.1 corresponds to the angle β.sub.2; both angles are preferably in the range between 2° and 6°. The two rear gable corner angles α.sub.GH1, α.sub.GH2 can therefore, for example, be in the range of approx. 86°. The angle γ is preferably in the range between 15° and 25°. The two front gable corner angles α.sub.GV1, α.sub.GV2 can therefore be in the range of approximately 113°, for example. From the described design, in particular from the curved front edge V, it follows that the angle sum of the quadrangular package gable G is greater than 360° (α.sub.GV1+α.sub.GV2+α.sub.GH1+α.sub.GH2>360°.
[0041] FIG. 2B shows a second region of the package 1 from FIG. 1A in enlarged view. The regions of the package 1 already described in connection with FIG. 1A to FIG. 2A are provided with corresponding reference numerals in FIG. 2B. The second region of the package 1 represented in FIG. 2B relates to the region of the third sleeve fold line M3, which separates the rear panel R from the two side panels S1, S2 (in FIG. 2B only one of the two third sleeve fold lines M3 is represented; the same applies to the other third sleeve fold line M3 due to symmetry). The third sleeve fold line M3 arranged between the rear panel R and the adjoining side panels S1, S2 has four sections I-IV: the first section I adjoins the package base B and runs straight. The second section II adjoins the first section I and runs curved (in the direction of the rear panel R). As a result of the curvature, there is a maximum distance d.sub.II between the third sleeve fold line M3 and a vertical SR3, which can lie in the range between 0.5 mm and 2.5 mm. The third section III adjoins the second section II and runs curved (in the direction of the first side panel S1). As a result of the curvature, there is a maximum distance dm between the third sleeve fold line M3 and the vertical SR3, which can lie in the range between 0.5 mm and 2.5 mm. The second section II and the third section III therefore have opposite curvatures or curvature directions. The fourth section IV adjoins the third section III and the package gable G and runs straight. The third sleeve fold line M3 therefore runs straight in sections (in the section I adjoining the package base B and in the section IV adjoining the package gable G) and curved in sections (in the two “centre” sections II, III).
LIST OF REFERENCEe NUMERALS
[0042] 1: Package
[0043] 2: Fin seam
[0044] 3: Ear
[0045] 4: Longitudinal seam
[0046] α.sub.GV1, α.sub.GV2: Front gable corner angles
[0047] α.sub.GH1, α.sub.GH2: Rear gable corner angles
[0048] β.sub.1, β.sub.2: Inclination angle
[0049] γ: Inclination angle
[0050] B: Package base
[0051] BV1, BV2: Front base corner
[0052] BH1, BH2: Rear base corner
[0053] d.sub.II, d.sub.III: Distance
[0054] E1 E2: Stress-relief panel
[0055] F: Front panel
[0056] G: Package gable
[0057] GV1, GV2: Front gable corner
[0058] GH1, GH2: Rear gable corner
[0059] K: Package base body
[0060] M1: First sleeve fold line
[0061] M2: Second sleeve fold line
[0062] M3: Third sleeve fold line
[0063] R: Rear panel
[0064] S1, S1: Side panel
[0065] SR1, SR2, SR3: Vertical
[0066] V: Front edge (of package gable G)
[0067] WR: Horizontal
[0068] I, II, III, IV: Sections (of the third sleeve fold line M3)
