Package with stress relief panels
The package design with stress relief panels and defined folds addresses the challenge of maintaining rigidity and preventing damage in complex laminated packaging, achieving improved manufacturing and air circulation for visually appealing and functional packages.
Patent Information
- Application Number
- JP2022531397
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2019-11-29
- Filing Date
- 2020-10-21
- Publication Date
- 2025-12-22
- Estimated Expiration
- 2040-10-21
AI Technical Summary
Existing laminated packaging technologies face challenges in achieving complex geometric designs while maintaining rigidity and preventing damage from sharp folds, which can lead to cracking and reduced stiffness.
The package design incorporates stress relief panels between the front and side panels, featuring folds with less steep angles and defined paths, along with optional barrier layers for improved rigidity and moisture resistance, allowing for complex shapes and enhanced air circulation.
This design reduces the risk of cracking, improves rigidity, facilitates manufacturing, and enhances air circulation, while enabling visually appealing and functional packages with improved gripping and space efficiency.
Smart Images

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Abstract
Description
[Technical Field]
[0001] The present invention relates to a laminated packaging comprising: a package bottom having two bottom front corners and two bottom rear corners; a package gable having two front gable corners and two rear gable corners; a package base having a front panel, a first side panel, a second side panel, and a rear panel; the package bottom and package gable disposed at opposite ends of the package base; and the laminate having a polymeric outer layer, a polymeric inner layer, and a fibrous support layer disposed between the polymeric outer layer and the polymeric inner layer. [Background technology]
[0002] Packaging (which becomes a package when filled) can be produced in several different ways and from a wide range of materials. One widely used production method involves producing a blank from a laminate, then folding and further processing the blank to first produce a packaging sleeve and finally the package. Alternatively, packaging can be produced directly from the blank, i.e., without the intermediate step of a packaging sleeve. This production method has the advantage, among other things, that the blanks and packaging sleeves are very flat and can be stacked in a space-saving manner. This allows the production of the blanks or packaging sleeves to take place in a location different from the location where the packaging sleeve is folded and filled. Laminates are often used as materials. For example, they consist of multiple thin layers of paper, cardboard, plastic, and / or metal, especially aluminum. Such packages are widely used, especially in the food industry.
[0003] Various packages made of laminated material are known from the prior art. While such packages originally had very simple geometric shapes, for example rectangular parallelepipeds, there is a demand for increasingly complex geometric designs in order to provide customers with visually appealing and functionally advantageous packages. Packages made of laminated material with more complex shapes are known, for example, from Patent Documents 1 to 3.
[0004] One drawback of the packaging container described in Patent Document 1 is the structure of the laminated material, as Patent Document 1 does not describe that the laminated material has an inner plastic layer and an outer plastic layer, and does not particularly describe the inner polymer layer or the outer polymer layer.
[0005] A disadvantage of the package known from DE 10 200 09 14 56 is that it is folded relatively strongly, since each fold in the sleeve region is approximately 90°, which can cause damage to the laminate, in particular cracks in the paper or cardboard layers of the laminate.
[0006] One drawback of the laminated packaging known from US 2007 / 0129994 resides in the fact that the front side of the packaging transitions to both sides of the packaging without creases or folds, so that the front side and both sides of the packaging form one common bulge. A continuous transition from the front side to the both sides reduces stresses on the laminate, but makes it more difficult to achieve a defined shape of the packaging and may also result in a reduced stiffness of the packaging sleeve. [Prior art documents] [Patent documents]
[0007] [Patent Document 1] International Publication No. 02 / 04301(A1) [Patent Document 2] International Publication No. 2011 / 154173(A1) [Patent Document 3] International Publication No. 2017 / 174210(A1) Summary of the Invention [Means for solving the problem]
[0008] Against this background, the object on which the present invention is based is to design and further develop the packaging mentioned at the outset and explained in more detail, in such a way that the production of packagings with even more complex shapes, in particular liquid-tight packagings, becomes possible without compromising the rigidity of the packaging.
[0009] This object is achieved in a package according to the preamble of claim 1 in that the package base comprises at least one stress relief panel arranged between the front panel and one of the two side panels.
[0010] The packaging according to the present invention is made entirely or partially from a laminate. The flat laminate has multiple layers that are superimposed and interconnected, thus forming a flat laminate. The flat laminate comprises an outer polymer layer, an inner polymer layer, and a fibrous support layer disposed between the outer and inner polymer layers. The inner and outer polymer layers are made of plastic and thus provide the laminate with liquid-tight properties. On the other hand, the fibrous support layer (preferably paper or cardboard) primarily serves to provide the laminate with improved mechanical properties, particularly improved rigidity. Optionally, a barrier layer may also be provided. The barrier layer is also disposed between the outer and inner polymer layers (preferably between the fibrous support layer and the inner polymer layer). The barrier layer can be made, for example, from aluminum and its purpose is to prevent the passage of light and / or oxygen. The packaging may also have multiple folds. These folds are formed by folding the flat laminate along crease lines during the manufacturing process. The package first includes a package bottom having two bottom front corners and two bottom rear corners. Adjacent bottom corners are connected to each other by a package bottom edge. The package further includes a package gable having two gable front corners and two gable rear corners. Adjacent gable corners are connected to each other by a package top edge. The package further includes a package base having a front panel, a first side panel, a second side panel, and a rear panel. The front panel is preferably located opposite the rear panel, and the first side panel is preferably located opposite the second side panel. The package bottom and package gable are located at opposite ends of the package base. When the package is standing upright on the package bottom, the package bottom is located below the package base and the package gable is located above the package base.
[0011] According to the present invention, the package base has at least one stress relief panel arranged between the front panel and one of the two side panels. The stress relief panel is used to create as smooth a transition as possible between the front panel and the side panel. Preferably, the stress relief panel extends over the entire height of the package base, i.e., from the package bottom to the package gable, separating the front panel from the two side panels. The technical effect of the stress relief panel is that the transition from the front panel to the two side panels is made via two less curved ("more obtuse") folds, so that the laminate only needs to be folded or bent at a less steep angle compared to the 90° folds of a rectangular package. This reduces stresses on the laminate, and in particular the risk of cracking or breaking of the fibers in the fibrous support layer (paper or cardboard layer) of the laminate. Preferably, the package has two stress relief panels, one arranged between the front panel and each of the two side panels. These stress relief panels also ensure that between adjacent packages there is a gap or free space in the area of the stress relief panel through which air can circulate, unlike rectangular packages. This has the advantage of reducing the risk of mould forming as a result of moisture. A further advantage of stress relief panels is that each panel or surface adjacent to the stress relief panel can be designed to be narrower and therefore more stable, which can improve gripping strength when pouring out of the filled package.
[0012] According to one configuration of the package, the stress relief panel and the front panel are adjacent to the same edge of the package, in particular the edge of the bottom of the package. In particular, the stress relief panel and the front panel can both be adjacent to the lower edge of the front of the package. According to a further configuration of the package, the stress relief panel and one of the two side panels are adjacent to the same edge of the package, in particular the edge of the gable of the package. In particular, the stress relief panel and one of the two side panels can both be adjacent to the upper edge of the side of the package. With this configuration, the stress relief panel and the adjacent front panel and / or side panel preferably extend obliquely relative to each other (except in the region of the bottom edge or gable edge where these panels converge). In other words, the stress relief panel's lower region corresponds to the front panel of the package, and its upper region corresponds to the side panel of the package. Thus, the stress relief panel completely "wraps" around the (imaginary) vertical fold of the package. Stress relief panels of this design have the advantage that the above mentioned technical effects (reduced stress on the laminate, improved air circulation) occur not only on one side of the package, but also on two sides of the package.
[0013] A further design of the package proposes that a first sleeve fold line, preferably at least partially curved, be provided between at least one stress relief panel and the adjacent front panel. By providing a fold line between the stress relief panel and the front panel, a fold with a defined path is realized, facilitating the manufacture of the package. This fold also improves the structural properties of the package, particularly its rigidity, compared to a curved shape without a fold line. The curved path of the sleeve fold line also makes it easier to form convex or concave surfaces or panels that create gaps between adjacent packages, improving air circulation. A first sleeve fold line, preferably at least partially curved, may be provided between each of the stress relief panels and the adjacent front panel. The first sleeve fold line may also be continuously curved.
[0014] This design further proposes that only one of the two ends of the first sleeve fold line terminate at one of the two front gable corners or one of the two front bottom corners, and the other end does not terminate at a gable corner or a bottom corner. Having one end of the first sleeve fold line terminate at or adjacent to one of the two front gable corners or one of the two front bottom corners improves the rigidity of these corners of the package. On the other hand, having the other end of the first sleeve fold line not terminate or adjacent to a corner of the package allows for a smooth and flat transition between the two surfaces or panels separated by the first sleeve fold line. For example, the other end of the first sleeve fold line can terminate at or adjacent to one edge of the package. This allows the two surfaces or panels separated by the first sleeve fold line and adjacent to the fold of the package to be positioned partially in approximately one plane.
[0015] A further design of the package includes a second sleeve fold line, preferably at least partially curved, between at least one stress relief panel and the adjacent side panel. As already described with respect to the first sleeve fold line, the second sleeve fold line also provides a fold with a defined path, facilitating the manufacture of the package. This fold also improves the structural properties, particularly rigidity, of the package compared to a curved shape without a fold. The curved path of this sleeve fold line also facilitates the formation of convex or concave surfaces or panels that create gaps between adjacent packages that improve air circulation. Second sleeve fold lines, preferably at least partially curved, may be provided between each of the stress relief panels and the adjacent side panel. The second sleeve fold line may also be continuously curved.
[0016] A further suggestion regarding this design is that only one of the two ends of the second sleeve fold line terminates at one of the two front gable corners or one of the two front bottom corners, and the other end does not terminate at a gable corner or a bottom corner. As already explained with respect to the first sleeve fold line, terminating one end of the second sleeve fold line at or adjacent to a corner of the package can improve the rigidity of this corner. On the other hand, by not terminating or adjacent to the other end of the second sleeve fold line at a corner of the package, it is possible to achieve as smooth and flat a transition as possible between the two surfaces or panels separated by the second sleeve fold line. For example, the other end of the second sleeve fold line can terminate at or adjacent to the edge of the package. This allows the two surfaces or panels separated by the second sleeve fold line and adjacent to the fold of the package to be positioned partially in approximately one plane.
[0017] According to a further configuration of the package, a third sleeve fold line, preferably at least partially curved, may be provided between at least one side panel and the adjacent rear panel. As already described with respect to the first and second sleeve fold lines, the third sleeve fold line also provides a fold with a defined path, thereby facilitating the manufacture of the package. This fold also improves the structural properties, particularly rigidity, of the package compared to a curved shape without a fold. The curved path of this sleeve fold line also facilitates the formation of convex or concave surfaces or panels that create gaps between adjacent packages that improve air circulation. The third sleeve fold line, preferably at least partially curved, may be provided between each of the side panels and the adjacent rear panel. The third sleeve fold line may also be continuously curved.
[0018] It is further proposed with respect to this configuration that one of the two ends of the third sleeve fold line terminates in one of the two gable rear corners and the other end terminates in one of the two bottom rear corners. By terminating or adjoining both ends of the third sleeve fold line in the gable corner or bottom corner, the rigidity of these corners of the package is improved.
[0019] It is further proposed that the third sleeve fold line have multiple sections, each adjacent to a side panel and a rear panel, at least one of the sections being curved and at least one of the sections being straight. By providing a fold line between a side panel and the adjacent rear panel, a fold having a defined path is realized, facilitating the manufacture of the package. This fold also improves the structural properties, particularly rigidity, of the package compared to a curved shape without a fold. The curved path of the sleeve fold line also facilitates the formation of convex or concave surfaces or panels that create gaps between adjacent packages that improve air circulation. Providing a straight section in addition to the curved section in the third sleeve fold line facilitates the manufacture of the package. A third sleeve fold line having multiple sections, each adjacent to a side panel and a rear panel, at least one of the sections being curved and at least one of the sections being straight, may be provided between each of the side panels and the adjacent rear panel. Additionally, the third sleeve fold line can have at least two curved portions ("curved folds") that face in different directions, i.e., a first curved portion faces toward a side panel and a second curved portion faces toward the rear panel adjacent to the side panel, further improving air circulation between adjacent packages.
[0020] According to a further configuration of the package, the section of the third sleeve fold line adjacent to the package bottom surface and the section of the third sleeve fold line adjacent to the package gable are linear. The use of linear sections adjacent to the package bottom surface and linear sections adjacent to the package gable is particularly advantageous because it allows the package bottom surface and gable to be manufactured using simpler tooling.
[0021] According to a further design of the package, at least two sections of the third sleeve fold line have opposite curvature directions. In particular, one section can be curved toward the rear panel and one section can be curved toward the side panel. This allows a package with convex and concave surfaces or panels to be realized. The section of the third sleeve fold line curved toward the side panel is preferably positioned above the section of the third sleeve fold line curved toward the rear panel. This results in a wide, concave rear side of the package in its upper region, particularly the upper half. The package preferably has a narrow, convex front side in its upper region, particularly the upper half, thereby enabling multiple packages to be placed in front of or behind each other in a space-saving manner, thereby achieving efficient space utilization. In addition, the opposite curvature directions allow the filling volume reduced by one curvature direction to be compensated for by the other curvature direction, so that the package height for a given package volume does not need to be changed.
[0022] A further configuration of the package allows the package to have a fin seam in the area of the package gable that is folded over in the direction of the front panel. This design allows for better drainage from the package gable, since no open-top "pockets" that can collect moisture are formed, for example in the case of a sloping gable that slopes forward. This design also allows for a larger space for a spout that is sealed from the inside.
[0023] According to a further design of the package, the package gable is approximately trapezoidal. The trapezoidal shape of the package gable has the advantage that one of the two parallel sides or edges (preferably the front edge of the package gable) is shorter than the opposite side or edge (preferably the rear edge of the package gable), unlike a rhomboid shape in which opposite sides are the same length. This allows a package with a larger volume to be easily grasped from the front with one hand.
[0024] In a further configuration of the package, the package gable is a sloping gable. In particular, the package gable can be sloping forward, i.e., the height of the package cable is lower in the front region of the package than in the rear region of the package. Due to the sloping package gable, a spout element located in the region of the package gable does not interfere with the stacking of packages as much as in packages with flat package gables. This is due to the fact that in packages with sloping gables, the spout element does not necessarily form the highest point of the package, as opposed to packages with flat gables. In addition, better drainage from the package gable can be achieved.
[0025] According to a further configuration of the package, the package gable has a curved front edge adjacent to the front panel. The front edge of the package gable is preferably curved in the direction of the front panel. This allows the surface of the package gable to be enlarged, which facilitates the attachment of, for example, a spout element with a larger diameter. The curved front edge of the package gable also influences the shape of the package's front panel. In particular, a front edge curved in the direction of the front panel allows the package to have an outwardly arched (convex) front panel. In addition to an attractive appearance, this also has the above-mentioned technical advantage of improving air circulation between adjacently arranged packages and reducing the risk of mold growth.
[0026] According to a further design of the packaging, the front panel is convex and / or the rear panel is at least partially concave. In particular, the upper area, especially the upper half, of the front panel of the packaging can be convex and / or the upper area, especially the upper half, of the rear panel can be concave. The combination of a convex front side and a concave rear side allows several packagings to be placed in front of or behind each other in a space-saving manner, despite their visually complex design.
[0027] A further suggestion with this configuration is that the front panel has its maximum convexity above half the height of the package base. By making the upper region of the front panel particularly large outward or forward arching, the upper region of the front panel can be designed to be particularly narrow compared to a rectangular package without reducing the volume of the package. In other words, the forward bulge compensates for the slimmer width. The slimmer width allows the package to be easily grasped from the front, so that it can be removed from a sales shelf with one hand, for example.
[0028] According to a further design of the packaging, the two front gable corners each have two large gable corner angles greater than 90°. Alternatively or additionally, the two rear gable corners each can have two small gable corner angles less than 90°. Angles other than 90° result in packaging gables with shapes that deviate from a rectangle or square. A rectangular packaging gable with two small (<90°) and two large (>90°) gable corner angles can be realized, for example, by a trapezoid, parallelogram, or rhombus. This allows packaging gables with different edge lengths to be realized. Therefore, for example, a short front edge can be realized, making the packaging particularly easy to grip from the front.
[0029] Finally, according to a further configuration of the package, the sum of the four gable corner angles exceeds 360°. An angle sum other than 360° can be achieved, for example, by having one or more sides or edges of the rectangular package gable not extend in a straight line but are curved (for example, as in the case of an arched quadrilateral or an arched polygon). An angle sum greater than 360° can be achieved by having at least one side or edge of the rectangular package gable curve outward. On the other hand, the bottom corner angles are preferably 90°, resulting in a rectangular, particularly square, package bottom. This design of the package gable has several advantages. In addition to a more visually appealing shape, one edge (preferably the front edge) of the package gable is shorter than the other edge (particularly the rear edge), resulting in a narrower front side of the package, which provides the technical effect of making it easier to grip the package with one hand. This design also has the technical effect that the contact surface between adjacently placed packages (e.g., during transport or on the sales shelf) is smaller than in the case of rectangular packages, where the side panels of the packages are in almost complete contact with each other. In other words, there are gaps or free spaces between adjacently placed packages, through which air can circulate. This has the advantage of reducing the risk of mold formation as a result of moisture. An angle sum of more than 360° also provides more space for the spout element. It is preferred that the rectangular package gable has an angle sum of at least 370°, in particular at least 380°, and preferably at least 390°. An angle sum within the range between 390° and 410° has proven advantageous.
[0030] In the following, the invention will be explained in more detail with reference to the drawings, which merely represent one preferred exemplary embodiment. [Brief explanation of the drawings]
[0031] [Figure 1A] 1 shows a package according to the invention in a perspective view; [Figure 1B] 1B shows the package of FIG. 1A in front view. [Figure 1C] 1B shows the package of FIG. 1A in rear view. [Figure 1D] 1B shows the package of FIG. 1A in side view. [Figure 2A] 1B shows an enlarged view of a first region of the package of FIG. 1A. [Figure 2B] 1B shows an enlarged view of a second region of the package of FIG. 1A. DETAILED DESCRIPTION OF THE INVENTION
[0032] FIG. 1A shows a perspective view of a package 1 according to the present invention. FIG. 1B shows the package 1 of FIG. 1A in a front view, FIG. 1C shows the package 1 in a back view, and FIG. 1D shows the package 1 in a side view. The package 1 has a rectangular package bottom B. The package bottom B has two bottom front corners BV1 and BV2 and two bottom rear corners BH1 and BH2. The package 1 also has a rectangular package gable G. The package gable G has two gable front corners GV1 and GV2 and two gable rear corners GH1 and GH2. In addition, the package 1 has a package base K. The package base K includes a front panel F, a first side panel S1, a second side panel S2, and a rear panel R. The package base K is disposed between the package bottom B and the package gable G. The package bottom B and the package gable G are located at opposite ends of the package base K and form the sleeve surfaces of the package 1. The package 1 is made in part or entirely from a laminate material. This laminate material has a polymer outer layer, a polymer inner layer, and a fibrous support layer arranged between the polymer outer layer and the polymer inner layer. The fibrous support layer can be, for example, a paper or cardboard layer. The package 1 has a fin seam 2 in the area of the package gable G. The fin seam 2 is folded over in the direction of the front panel F. The package 1 also has two selvedge edges 3 in the area of the package gable G. One selvedge edge 3 is attached to the first side panel S1, and the second selvedge edge 3 is attached to the second side panel S2. The package 1 has a longitudinal seam 4 in the area of the rear panel R. The package gable G is approximately trapezoidal and designed as a sloped gable (like a pitched roof). The package gable G has a leading edge V. The leading edge V curves toward and is adjacent to the front panel F. The shape of the package gable is described in more detail in connection with Figure 2A.
[0033] The package base K of the package 1 shown in FIGS. 1A-1D has two stress relief panels E1 and E2. The first stress relief panel E1 is disposed between the front panel F and the first side panel S1, and the second stress relief panel E2 is disposed between the front panel F and the second side panel S2. Thus, the stress relief panels E1 and E2 separate the front panel F from the two side panels S1 and S2 and form a transition between the front panel F and the two side panels S1 and S2. The first stress relief panel E1 and the second stress relief panel E2 are partially coplanar with the front panel F in the region adjacent to the package bottom B. However, the first stress relief panel E1 is partially coplanar with the first side panel S1 in the region adjacent to the package gable G. Similarly, the second stress relief panel E2 is partially coplanar with the second side panel S2 in the region adjacent to the package gable G. Therefore, the lower regions of the two stress relief panels E1, E2 are associated with different sides of the package 1 than the upper regions of the two stress relief panels E1, E2. Therefore, the two stress relief panels E1, E2 are "wrapped" around the imaginary fold of the package in the direction from the front panel F to one of the two side panels S1, S2.
[0034] The package 1 shown in FIGS. 1A to 1D has a continuously curved first sleeve fold line M1 between the front panel F and the first stress relief panel E1. A continuously curved first sleeve fold line M1 is also provided between the front panel F and the second stress relief panel E2. The upper ends of the two first sleeve fold lines M1 are adjacent to the two gable front corners GV1 and GV2. However, the lower ends of the two first sleeve fold lines M1 are not adjacent to the two bottom front corners BV1 and BV2, but are adjacent to points on the lower edge of the front face of the package located between them. The package 1 further has a continuously curved second sleeve fold line M2 between the first stress relief panel E1 and the adjacent first side panel S1. A continuously curved second sleeve fold line M2 is also provided between the second stress relief panel E2 and the adjacent second side panel S2. The lower ends of the two second sleeve fold lines M2 are adjacent to the two bottom front corners BV1, BV2. However, the upper ends of the two second sleeve fold lines M1 are not adjacent to the two gable front corners GV1, GV2, but are adjacent to points on the upper edge of the side of the package that are located between the gable front corners GV1, GV2 and the gable back corners GH1, GH1. The package 1 shown in FIGS. 1A to 1D has a third sleeve fold line M3 between the first side panel S1 and the adjacent rear panel R. A third sleeve fold line M3 is also provided between the second side panel S1 and the adjacent rear panel R. One end of the third sleeve fold line M3 is adjacent to one of the two gable back corners GH1, GH2, and the other end is adjacent to one of the two bottom back corners BH1, BH2. The exact path of the third sleeve fold line M3 is described in more detail in connection with FIG. 2B.
[0035] Particularly apparent from the side view (FIG. 1D) is that the front panel F is convex, i.e., arches outward, with the front panel F having a maximum convex bulge above half the height of the package base K. Also discernible in FIG. 1D is that the rear panel R is concave, i.e., arches inward.
[0036] FIG. 2A shows an enlarged view of a first region of the package 1 of FIG. 1A. In FIG. 2A, regions of the package 1 already described with reference to FIGS. 1A-1D are labeled with corresponding reference numerals. The first region of the package shown in FIG. 2A is the region of the package gable G, in particular the region of the gable front angle GV2 (and the gable corner angle α therein). GV2 ), and the area of the gable rear angle GH1 (and the gable corner angle α GH1 ), the same applies to the other half of the packaging gable G (not shown in FIG. 2A) due to symmetry. The four corners of the packaging gable G are not right angles. The two gable front corners GV1 and GV2 are spaced apart by a gable front corner angle α GV1 , α GV2 The gable front corner angle α GV1 , α GV2 is slightly larger than 90° (α GV1 , α GV2 >90°). The two gable rear corners GH1 and GH2 are the gable rear corner angle α GH1 , α GH2 The gable rear corner angle α GH1 , α GH2 is slightly smaller than 90° (α GH1 , α GH2 <90°). Gable rear corner angle α GH1 , α GH2 In this case, the deviation from the right angle is the gable rear corner angle α GH1 , α GH2 The upper edge of the side of the package adjacent to the upper edge of the rear surface of the package does not extend perpendicularly to the upper edge of the rear surface of the package, but is inclined at an angle β1 with respect to the vertical line SR1 (α GH1 =α GH2 = 90° - β1) The gable front corner angle α GV1 , α GV2 In this case, the deviation from the right angle has two reasons. First, the gable front corner angle α GV1 , α GV2 The upper edge of the side of the package adjacent to the gable does not extend perpendicular to the rear edge of the package, but is inclined at an angle β2 with respect to the vertical line SR2. Second, the gable front corner angle α GV1 , α GV2The front edge V adjacent to the gable panel F does not extend straight, but curves toward the front panel F. The front edge V (or the gable front corners GV1, GV2, or the gable corner angle α GV1 , α GV2 , the tangent line that contacts the leading edge V in the region of the α axis is inclined at an angle γ with respect to the horizontal line WR (which extends parallel to the upper edge of the rear surface of the package). GV1 =α GV2 = 90° + β2 + γ). The angle β1 corresponds to the angle β2. Both angles are preferably in the range between 2° and 6°. Therefore, the two gable rear corner angles α GH1 , α GH2 can be, for example, in the range of about 86°. The angle γ is preferably in the range between 15° and 25°. Therefore, the two gable front corner angles α GV1 , α GV2 can be, for example, in the range of about 113°. Due to the described design, and in particular due to the curved leading edge V, the sum of the angles of the rectangular packaging gable G is greater than 360° (α GV1 +α GV2 +α GH1 +α GH2 >360°).
[0037] FIG. 2B shows an enlarged view of the second region of the package 1 of FIG. 1A. In FIG. 2B, the regions of the package 1 already described with reference to FIGS. 1A-2A are labeled with corresponding reference numerals. The second region of the package 1 shown in FIG. 2B corresponds to the region of the third sleeve fold line M3, which separates the rear panel R from the two side panels S1, S2. (Only one of the two third sleeve fold lines M3 is shown in FIG. 2B. The same applies to the other third sleeve fold line M3 for symmetry reasons.) The third sleeve fold line M3, located between the rear panel R and the adjacent side panels S1, S2, has four sections I-IV. The first section I is adjacent to the package bottom B and extends linearly. The second section II is adjacent to the first section I and is curved (toward the rear panel R). As a result of this curvature, there is a maximum distance d between the third sleeve fold line M3 and the vertical line SR3. II There exists a maximum distance d IIcan be in the range between 0.5 mm and 2.5 mm. The third section III is adjacent to the second section II and is curved (towards the first side panel S1). As a result of this curvature, there is a maximum distance d between the third sleeve fold line M3 and the vertical line SR3. III There exists a maximum distance d III can be 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 directions of curvature. The fourth section IV is adjacent to the third section III and the package gable G and extends linearly. The third sleeve fold line M3 is therefore partially linear (in section I adjacent to the package bottom B and in section IV adjacent to the package gable G) and partially curved (in the two "center" sections II, III). [Explanation of symbols]
[0038] 1 package 2 Finseam 3 ears 4 longitudinal seams α GV1 , α GV2 Gable front corner angle α GH1 , α GH2 Gable rear corner angle β1, β2 inclination angle γ Tilt angle B Bottom of package BV1, BV2 bottom front corner BH1, BH2 bottom rear corner d II , d III distance E1, E2 stress relief panels F Front Panel G Package Gable GV1, GV2 front corner of gable GH1, GH2 Gable rear corner K Packaging base M1 First sleeve fold line M2 Second sleeve fold line M3 Third sleeve fold line R Rear Panel S1, S1 side panel SR1, SR2, SR3 vertical line V (of the package gable G) WR horizontal line Sections I, II, III, IV (third sleeve fold line M3)
Claims
1. A packaging body (1) made of laminated material, the packaging body (1) comprising: a bottom package (B) having two front bottom corners (BV1, BV2) and two rear bottom corners (BH1, BH2); a packaging gable (G) having two front gable corners (GV1, GV2) and two rear gable corners (GH1, GH2); a package base (K) having a front panel (F), a first side panel (S1), a second side panel (S2) and a rear panel (R); Equipped with - the package bottom (B) and the package gable (G) are located at opposite ends of the package base (K), the package base (K) comprises at least one stress relief panel (E1, E2) arranged between the front panel (F) and one of the two side panels (S1, S2); In the package (1), the laminate comprises an outer polymeric layer, an inner polymeric layer and a fibrous support layer disposed between the outer polymeric layer and the inner polymeric layer; - the stress relief panels (E1, E2) and the front panel (F) are both adjacent to the lower edge of the front face of the package, and the stress relief panels (E1, E2) and one of the two side panels (S1, S2) are both adjacent to the upper edge of the side face of the package; A packaging (1) characterized in that
2. 2. The packaging (1) according to claim 1, characterized in that the stress relief panels (E1, E2) and the front panel (F) adjoin one edge of the bottom surface (B) of the packaging.
3. 3. The packaging (1) according to claim 1 or 2, characterized in that the stress relief panels (E1, E2) and one of the two side panels (S1, S2) are adjacent to one edge of the packaging gable (G).
4. 4. The packaging (1) according to any one of claims 1 to 3, characterized in that a first sleeve fold line (M1), which is at least partially curved, is provided between at least one stress relief panel (E1, E2) and the front panel (F) adjacent thereto.
5. 5. The packaging (1) according to claim 4, characterized in that only one of the two ends of the first sleeve fold line (M1) terminates at one of the two gable front corners (GV1, GV2) or at one of the two bottom front corners (BV1, BV2), and the other end does not terminate at a gable corner (GV1, GV2, GH1, GH2) or at a bottom corner (BV1, BV2, BH1, BH2).
6. 6. The packaging (1) according to any one of claims 1 to 5, characterized in that a second sleeve fold line (M2), which is at least partially curved, is provided between at least one stress relief panel (E1, E2) and the side panel (S1, S2) adjacent thereto.
7. 7. The packaging (1) according to claim 6, characterized in that only one of the two ends of the second sleeve fold line (M2) terminates at one of the two gable front corners (GV1, GV2) or at one of the two bottom front corners (BV1, BV2), and the other end does not terminate at a gable corner (GV1, GV2, GH1, GH2) or a bottom corner (BV1, BV2, BH1, BH2).
8. 8. The packaging (1) according to any one of claims 1 to 7, characterized in that a third sleeve fold line (M3), which is at least partially curved, is provided between at least one side panel (S1, S2) and the adjacent rear panel (R).
9. The packaging (1) according to claim 8, characterized in that one of the two ends of the third sleeve fold line (M3) terminates in one of the two gable rear corners (GH1, GH2) and the other end terminates in one of the two bottom rear corners (BH1, BH2).
10. 10. The packaging (1) according to claim 8 or 9, characterized in that the third sleeve fold line (M3) has a plurality of sections (I, II, III, IV), each of which is adjacent to one side panel (S1, S2) and the rear panel (R), at least one section (II, III) being curved and at least one section (I, IV) being straight.
11. The packaging (1) according to any one of claims 8 to 10, characterized in that a section (I) of the third sleeve fold line (M3) adjacent to the bottom surface (B) of the packaging and a section (IV) of the third sleeve fold line (M3) adjacent to the gable (G) of the packaging are linear.
12. Packaging (1) according to any one of claims 8 to 11, characterized in that at least two sections (II, III) of the third sleeve fold line (M3) have opposite directions of curvature.
13. The packaging (1) according to any one of claims 1 to 12, characterized in that the packaging (1) has a fin seam (2) folded over in the direction of the front panel (F) in the area of the packaging gable (G).
14. Packaging (1) according to any one of claims 1 to 13, characterized in that the packaging gable (G) is substantially trapezoidal.
15. Packaging (1) according to any one of claims 1 to 14, characterized in that the packaging gable (G) is a sloping gable.
16. The package (1) according to any one of claims 1 to 15, characterized in that the package gable (G) has a curved front edge (V) adjacent to the front panel (F).
17. Packaging (1) according to any one of the preceding claims, characterized in that the front panel (F) is convex and / or the rear panel (R) is at least partially concave.
18. 18. Packaging (1) according to claim 17, characterized in that the front panel (F) has its maximum convex bulge above half the height of the packaging base (K).
19. The two gable front corners (GV1, GV2) each have two large gable corner angles (α GV1 , α GV2 Packaging (1) according to any one of claims 1 to 18, characterized in that it comprises a
20. The two rear gable corners (GH1, GH2) are each formed with two small gable corner angles (α GH1 , α GH2 20. Packaging (1) according to any one of claims 1 to 19, characterized in that it comprises a
21. The four gable corner angles (α ) of the packaging gable (G) having the two gable front corners (GV1, GV2) and the two gable rear corners (GH1, GH2) are GV1 , α GV2 , α GH1 , α GH2 21. Packaging (1) according to any one of claims 1 to 20, characterized in that the sum of the angles of the periphery ...
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