Packaging containers, templates and packaging

Abstract

To provide a packaging container and a package body which can be made lightweight while sufficiently protecting a cut flower or an artificial flower in delivery.SOLUTION: A paper-made packaging container 100 having an internal space for storing a cut flower or an artificial flower, comprises: a pair of side walls 10, 20; an upper wall 50 which is provided on the upper end side of the pair of side walls 10, 20; a lower wall 60 which is provided on the lower end side of the pair of side walls 10, 20; and a pair of gusset parts 30A which is folded into a space between the pair of side walls 10, 20 such that the tips face each other to maintain a gap between the pair of side walls. The folding width of the pair of gusset parts 30A becomes larger as heading toward the lower end side from the upper end side.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to packaging containers, paper patterns, and packages. [Background technology]

[0002] Cardboard cases for storing plants in flowerpots are known. For example, Patent Document 1 discloses a cardboard case for potted flowers, which has a structure in which a base with a fitting hole for fitting and holding a flowerpot is fitted into the case body. Patent Document 2 discloses a hollow box with a triangular cross section as a storage case used for transporting potted flowers and ornamental plants. Meanwhile, for cut flowers, a tray for supporting cut flowers is known (for example, Patent Document 3). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Utility Model Application Publication No. 63-177224 [Patent Document 2] Utility Model Registration No. 2546883 [Patent Document 3] Utility Model Registration No. 3092485 Summary of the Invention [Problem to be solved by the invention]

[0004] There is an increasing demand for packaging and shipping cut flowers or artificial flowers. Cut flowers and artificial flowers are smaller than plants in flowerpots, so they can be packaged compactly. The present disclosure provides a packaging container and package that can be made lightweight while adequately protecting cut flowers or artificial flowers during delivery. The present disclosure also provides a pattern that can easily produce such a packaging container. [Means for solving the problem]

[0005] The present disclosure provides a paper packaging container having an internal space for accommodating cut flowers or artificial flowers, the packaging container comprising a pair of side walls, an upper wall provided on the upper end side of the pair of side walls, a lower wall provided on the lower end side of the pair of side walls, and a pair of gusset portions folded between the pair of side walls with their tips facing each other to maintain the distance between the pair of side walls, and the folding width of the pair of gusset portions increasing from the upper end side toward the lower end side.

[0006] The packaging container is made of paper, and therefore can be made lightweight. In addition, the container has a pair of gussets that are folded so that their tips face each other to maintain the distance between the pair of side walls, and the width of the gussets increases from the upper end side to the lower end side, making it easier to fit the shape of the internal space to the shape of the cut flowers or artificial flowers. When the cut flowers or artificial flowers are placed in such an internal space with the flowers at the upper end side and the stems at the lower end side, the cut flowers or artificial flowers are prevented from moving significantly inside the packaging container during delivery. This can reduce the collision of the flowers with the inner surface of the side walls due to vibrations or the like during delivery. This can therefore prevent the cut flowers or artificial flowers from being damaged during delivery, and can adequately protect the cut flowers or artificial flowers.

[0007] It is preferable that the width of the pair of side walls is decreased as the folded width of the pair of gusset parts increases from the upper end side to the lower end side of the pair of side walls. This allows the inner space to be narrowed by the gusset parts from the upper end side to the lower end side, and the shape of the inner space can be made more suitable for storing stems on the lower end side and flowers on the upper end side. In such a packaging container, the stems are prevented from moving significantly inside the packaging container during delivery between the pair of gusset parts. This makes it possible to sufficiently prevent the flowers from colliding with the inner surface of the side walls due to the movement of the stems caused by vibrations or the like during delivery.

[0008] It is preferable that both the upper and lower walls of the packaging container are polygonal, and that the pair of side walls each have mountain fold lines that extend linearly from a pair of corners of the upper wall to the midpoint of the opposing sides of the lower wall. This allows the distance between the pair of side walls to be increased. This further prevents damage to the cut flowers or artificial flowers, and provides sufficient protection for the cut flowers or artificial flowers. In addition, the number of cut flowers or artificial flowers that can be stored can be increased.

[0009] In a top view of the packaging container, it is preferable that a first diagonal line connecting a pair of corners of the upper wall is perpendicular to the opposing direction of the tips of the pair of gusset parts. An upper wall having such a first diagonal line can ensure a thickness along the opposing direction of the pair of side walls in the portion where the flowers are held at the upper end of the internal space. Therefore, even if the size of the flowers or the number of flowers is increased, the flowers can be prevented from being crushed by the inner surface of the side walls.

[0010] It is preferable that the upper wall of the packaging container is rhombic in which a second diagonal perpendicular to the first diagonal is longer than the first diagonal, and the lower wall is rectangular in shape with a short side parallel to the first diagonal and a long side parallel to the second diagonal, and the upper wall has a larger area than the lower wall. This allows the thickness of the packaging container (the length along the opposing direction of the pair of side walls) to be reduced while ensuring a sufficient size for the flower holder in the internal space. This makes it easier to use a mailbox, for example, and further improves the convenience of delivery.

[0011] It is preferable that the cross section of the internal space of the packaging container has a maximum area and has a flat cross section. This allows the thickness of the packaging container to be thin while still allowing multiple cut flowers or artificial flowers to be stored. This makes it easier to use a mailbox, for example, and further improves the convenience of delivery.

[0012] The side wall of the packaging container preferably includes a central cut or through hole and an opening section defined by two perforation lines extending radially from the cut or through hole to the upper end of the side wall, thereby facilitating smooth opening of the package containing cut flowers or artificial flowers.

[0013] The packaging container is preferably made of a single sheet of paper material, which can be easily assembled.

[0014] The present disclosure provides a paper pattern for forming any one of the above-mentioned packaging containers. By using this paper pattern, the packaging container can be easily produced. The packaging container thus obtained can be lightweight while adequately protecting the cut flowers or artificial flowers during delivery.

[0015] The present disclosure provides a package including any one of the packaging containers described above and cut flowers or artificial flowers contained in the packaging container. Since the package includes the packaging container described above, the package can be lightweight while adequately protecting the cut flowers or artificial flowers during delivery. Effect of the Invention

[0016] It is possible to provide a packaging container and a package that can be made lightweight while adequately protecting cut flowers or artificial flowers during delivery. It is also possible to provide a pattern that can easily manufacture such a packaging container. [Brief description of the drawings]

[0017] [Figure 1] FIG. 2 is a perspective view showing the front side of a packaging container according to one embodiment. [Diagram 2] FIG. 2 is a perspective view showing the rear side of a packaging container according to one embodiment. [Diagram 3] FIG. 2 is a front view of a packaging container according to one embodiment. [Figure 4] FIG. 2 is a side view of a packaging container according to one embodiment. [Diagram 5] FIG. 2 is a top view of a packaging container according to one embodiment. [Figure 6] 6A is a diagram showing the lower wall of the packaging container, and FIG. 6B is a diagram showing the shape of the internal space when cut along the line VI(B)-VI(B) in FIG. [Figure 7] FIG. 2 is a schematic diagram of a package according to an embodiment. [Figure 8] FIG. 2 is a diagram showing a paper template according to an embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] Hereinafter, an embodiment of the present disclosure will be described with reference to the drawings as needed. However, the following embodiment is an example for explaining the present disclosure, and is not intended to limit the present disclosure to the following content. In the description, the same reference numerals are used for the same elements or elements having the same functions, and redundant description is omitted as the case may be. In addition, the positional relationship such as up, down, left, right, etc. is based on the positional relationship shown in the drawings unless otherwise specified. Furthermore, the dimensional ratio of each element is not limited to the ratio shown in the drawings.

[0019] FIG. 1 is a perspective view showing the front side of the packaging container 100. FIG. 2 is a perspective view showing the rear side of the packaging container 100. FIG. 3 is a front view of the packaging container 100. The packaging container 100 includes a pair of side walls 10, 20 arranged to face each other, an upper wall 50 arranged on the upper end side of the pair of side walls 10, 20, and a lower wall 60 arranged on the lower end side of the pair of side walls 10, 20. Cut flowers (fresh flowers) or artificial flowers (hereinafter, sometimes collectively referred to as "cut flowers, etc.") are stored in an internal space surrounded by the side walls 10, 20, the upper wall 50, the lower wall 60, and a pair of gusset parts 30A folded so that their tips face each other. Examples of cut flowers and artificial flowers include those composed of a stem and a flower, or a stem, a flower, and a leaf.

[0020] The upper wall 50 of the packaging container 100 has a larger area than the lower wall 60. Cut flowers or the like are stored inside the packaging container 100 such that the stems of the cut flowers or the like are arranged closer to the lower wall 60 and the flowers of the cut flowers or the like are arranged closer to the upper wall 50 in the internal space of the packaging container 100. That is, the lower part of the packaging container 100 forms a holding part 40 that holds the stems of the cut flowers or the like, and the upper part of the packaging container 100 forms a holding part 41 that holds the flowers of the cut flowers or the like. In the packaging container 100, the holding part 40 is narrower than the holding part 41. This reduces the volume of the internal space of the packaging container 100, making it lighter and easier to carry the packaging container 100.

[0021] As shown in FIG. 1 and FIG. 3, the side wall 10 has a notch 11 in the center and two opening perforation lines 12 extending radially from the notch 11 toward the corners of the side wall 10 (a pair of corners 52, 54 of the upper wall 50). The notch 11 is provided below the corner 53. The two opening perforation lines 12 define a section to be opened 14. In a packaging container 100 having a side wall 10 including such a section to be opened 14, after storing cut flowers or the like in the internal space, a finger is pressed into the notch 11 to form a through hole, and the section to be opened 14 is picked up from the lower end side to the upper end side, whereby the section to be opened 14 is cut and opened along the two opening perforation lines 12. In this way, the packaging container 100 (package 200 containing cut flowers or the like) can be opened. In a modified example, a through hole may be formed instead of the notch 11, and in another modified example, the intended opening portion may not be provided, and cut flowers, etc. may be removed by opening the upper wall 50.

[0022] As shown in FIG. 1 and FIG. 3, the side wall 10 has a mountain fold line 81 that extends linearly from the corner 53 of the upper wall 50 toward the midpoint of one side of the lower wall 60. The mountain fold line 81 extends so as to bisect the intended opening portion 14 and intersects with the incision 11. The mountain fold line 81 of the side wall 10 can increase the thickness of the packaging container 100. In a modified example, when a through hole is provided instead of the incision 11, the mountain fold line 81 may be divided by the through hole. In addition, the mountain fold line 81 does not necessarily have to be continuous from the corner 53 of the upper wall 50 to the midpoint of one side of the lower wall 60, and may be divided or may be formed only on a part of the side wall 10. For example, the mountain fold line 81 may be provided only on the part of the side wall 10 that constitutes the holding portion 41 in which the flower is accommodated. This can sufficiently prevent the flower from being crushed by the side wall 10 that constitutes the holding portion 41. The mountain fold line 81 may be a perforation line or a ruled line.

[0023] As shown in FIG. 2, the side wall 20 has a mountain fold line 82 that extends linearly from the corner 51 of the upper wall 50 to the midpoint of one side of the lower wall 60. The mountain fold line 82 is divided by a tongue-shaped portion 65 that fixes the lower wall 60 to the side wall 20. In this way, the mountain fold line 82 may be divided in the same manner as the mountain fold line 81. By having the mountain fold line 82 in the side wall 20, the thickness of the packaging container 100 can be increased. In a modified example, the mountain fold line 82 may be continuous from the corner 51 of the upper wall 50 to the midpoint of one side of the lower wall 60 without providing the tongue-shaped portion 65. In another modified example, the mountain fold line 82 may be divided by another member or a through hole or the like. Also, the mountain fold line 82 may be provided only in the part of the side wall 20 that constitutes the holding portion 41 in which the flower is accommodated. This makes it possible to sufficiently prevent the flower from being crushed by the side wall 20. The mountain fold line 82 may be a perforation line or a ruled line.

[0024] The side wall 20 is formed by bonding two side wall materials 20A, 20B together at the bonding portion 22. The side end 24 of the outer side wall material 20B bonded together at the bonding portion 22 extends from the upper end to the lower end of the side wall 20 along the mountain fold line 82. In this way, the bonding portion 22 extends in a strip shape from the upper end to the lower end of the side wall 20, and the mountain fold line 82 is provided at the bonding portion 22. By forming at least one of the mountain fold lines 81, 82 of the side walls 10, 20 at the bonding portion 22 in this way, the strength of the side wall can be sufficiently increased. At the lower part of the side wall 20, a tongue-shaped portion 65 connected to the lower wall 60 is inserted into a notch formed in the bonding portion 22 and engaged therewith. In this way, by providing an engaging portion that engages the lower wall 60 to the side wall 20, the strength of the holding portion 40 can be sufficiently increased.

[0025] The packaging container 100 may be made of a single sheet of paper material. Examples of the paper material include corrugated cardboard and coated cardboard. By using corrugated cardboard, the packaging container 100 can be made lightweight and excellent in rigidity. By using coated cardboard, processing such as mountain folds and valley folds can be easily performed, and the container can be processed into various shapes. Furthermore, even if the mountain folds and valley folds are formed by perforations, the container can maintain sufficient strength.

[0026] As shown in Figs. 1, 2 and 4, the packaging container 100 has a pair of gusseted portions 30A, 30B on the side walls. The pair of gusseted portions 30A, 30B are folded between the side walls 10, 20 so that their tips face each other. The gusseted portions 30A, 30B are provided in a holding portion 40 that holds stems of cut flowers and the like. Since the gusseted portions 30A, 30B are folded in an accordion-like shape, the thickness of the packaging container 100 at the holding portion 40 can be thin enough to hold the stems. In addition, the size of the internal space in the holding portion 40 can be changed depending on the size of the stem, and the stems can be clamped between the inner surfaces of the side walls 10, 20. This prevents the stems from moving significantly within the internal space during delivery. This reduces the collision or rubbing of the flowers against the inner surfaces of the side walls 10, 20 due to the movement of the stems, and prevents the flowers from being damaged.

[0027] The pair of gusset portions 30A, 30B are formed so that the folded width W2 (FIG. 8) increases from the upper end side to the lower end side of the side walls 10, 20. As the folded width W2 increases from the upper end side to the lower end side of the side walls 10 (20), the width W1 of the side walls 10, 20 may decrease as shown in FIG. 3. That is, the holding portion 40 of the packaging container 100 may have a tapered shape that narrows from the upper end side to the lower end side of the side walls 10, 20. This allows the packaging container 100 (holding portion 40) to be compact while ensuring the size of the internal space in the holding portion 41 that holds the flowers. The width W1 of the side walls 10, 20 refers to the length of the side walls 10, 20 in the cross section of the packaging container 100.

[0028] As shown in FIG. 4, the gusset portion 30A is formed by a pair of mountain fold lines 32 and a valley fold line 33 formed between the pair of mountain fold lines 32 and forming the tip of the gusset portion 30A. The gusset portion 30A is folded in an accordion-like shape between the side walls 10 and 20, and is configured to be elastically deformable in the thickness direction of the packaging container 100. The gusset portion 30A is formed to maintain the distance between the inner surfaces of the side walls 10 and 20. The gusset portion 30A may bias the side walls 10 and 20 toward the outside (the side opposite to the internal space side). The gusset portion 30A may also be configured to be elastically deformable. In this case, when the packaging container 100 is deformed by an external force so that the distance between the side walls 10 and 20 becomes narrower, the gusset portion 30A is elastically deformed and generates a repulsive force against the deformation. This not only prevents the inner surfaces of the side walls 10 and 20 from contacting each other, but also allows the thickness of the internal space to be sufficiently maintained. From the viewpoint of ensuring a sufficiently large repulsive force against deformation, the packaging container 100 is preferably made of coated cardboard.

[0029] Through holes 31, 35 are provided above and below the gusset portion 30A. This makes it easier to form the packaging container 100 having the gusset portion from a paper pattern. A dividing line 85 consisting of a mountain fold line that divides the side wall 10 and the side wall 20 is provided above the gusset portion 30A (through hole 31). The dividing line 85, the mountain fold line 32, and the valley fold line 33 may be formed as a perforation line or a ruled line. The side portion opposite to the side portion of the packaging container 100 shown in FIG. 4 may have the same structure as that shown in FIG. 4. That is, the gusset portion 30B may have the same structure as the gusset portion 30A.

[0030] FIG. 5 is a top view of the packaging container 100, showing the upper wall 50. The upper wall 50 has a diamond shape and has four corners 51, 52, 53, and 54. A first diagonal L1 connecting a pair of opposing corners 51, 53 and a second diagonal L2 connecting a pair of opposing corners 52, 54 are perpendicular to each other. When the packaging container 100 is viewed from above as shown in FIG. 5, one of the diagonals L1, L2 in the upper wall 50 (the first diagonal L1) is perpendicular to the opposing direction of the pair of gusset portions 30A, 30B. On the other hand, the other of the diagonals L1, L2 (the second diagonal L2) is parallel to the opposing direction of the pair of gusset portions 30A, 30B.

[0031] When the packaging container 100 is viewed from above, the first diagonal L1 of the upper wall 50 is perpendicular to the opposing direction D (FIG. 6(B)) of the tips 36A, 36B of the pair of gusseted portions 30A, 30B, so that the thickness of the holding portion 41 for holding the flowers can be ensured by the upper wall 50. In addition, since the second diagonal L2 is longer, the upper wall 50 can be made flat. This makes it easier to post the packaging container 100 and the package 200 in a mailbox, improving the convenience of delivery. The ratio of the second diagonal L2 to the first diagonal L1 may be 1.3 to 4, 1.5 to 3, or 1.7 to 2.5. This allows the convenience of delivery to be sufficiently improved while ensuring a sufficient space for holding the flowers.

[0032] The shape of the upper wall 50 is not limited to a diamond shape, and may be a polygon having a diagonal perpendicular to the facing direction D of the tips 36A, 36B of the pair of gusset portions 30A, 30B, similar to the first diagonal L1. In this case, it is preferable that the number of corners is an even number, and the lengths of the opposing sides of the upper wall are equal. For example, the shape of the upper wall may be a regular hexagon or a hexagon flattened in one direction, with two diagonals drawn parallel to each other perpendicular to the facing direction D.

[0033] 6(A) is a diagram of the bottom wall 60 of the packaging container 100 as viewed from below. The bottom wall 60 is rectangular, and has long sides E1, E2 which are opposing sides facing each other, and short sides E3, E4 which are other opposing sides facing each other. The ratio of the length of the long sides E1, E2 to the length of the short sides E3, E4 is preferably 2 to 10, and more preferably 3 to 8. By setting such a ratio, the holding portion 40 can be made to a size suitable for holding multiple stems.

[0034] Side walls 10 and 20 are provided on the long sides E1 and E2, respectively, and gusset portions 30A and 30B are provided on the short sides E3 and E4, respectively. The short sides E3 and E5 are shorter than the folding width W2 (FIG. 8) of the gusset portions 30A and 30B. This prevents the thickness of the packaging container 100 from becoming too large. The mountain fold line 81 in FIG. 1 and FIG. 3 extends toward the midpoint of the long side E1, and the mountain fold line 82 in FIG. 2 extends toward the midpoint of the long side E2. The long sides E1 and E2 are parallel to the opposing direction D (FIG. 6(B)) of the tips of the gusset portions 30A and 30B and the second diagonal line L2 (FIG. 5). The short sides E3 and E4 are parallel to the first diagonal line L1 (FIG. 5).

[0035] The lower wall 60 has an area smaller than that of the upper wall 50. The area ratio of the upper wall 50 to the lower wall 60 may be 3 to 20, 5 to 15, or 7 to 13. By setting such an area ratio, the internal space can be made into a shape suitable for storing cut flowers, etc. The upper wall 50 and the lower wall 60 may be flat or curved.

[0036] FIG. 6(B) is a diagram showing the outline of the internal space 88 when cut along the line VI(B)-VI(B) in FIG. 3. A cross section cut along a direction perpendicular to the longitudinal direction of the stem is called a "cross section". The cross section of the internal space 88 has a flat shape. In the present disclosure, a flat shape refers to a rectangle when a minimum imaginary rectangle VR is drawn that circumscribes the cross section of the internal space 88. The ratio of the long side to the short side of VR is preferably 2 to 10, and more preferably 3 to 8. By setting such a ratio, it is easy to adjust the size of the mailbox to a usable size while ensuring sufficient storage space for cut flowers, etc.

[0037] The cross section of the internal space 88 may have a flat shape from the upper end to the lower end of the packaging container 100, but is not limited thereto. For example, it is preferable that the cross section of the internal space 88 at the portion with the largest area has a flat shape. This allows the thickness of the packaging container 100 to be thin while allowing a plurality of cut flowers, etc. to be accommodated. This makes it easier to use a mailbox, for example, and further improves the convenience of delivery. In the packaging container 100, the cross section of the internal space 88 at the portion with the largest area is the cross section at the upper end of the internal space 88.

[0038] Fig. 7 is a schematic diagram showing a package 200 in which cut flowers 150 are accommodated in a packaging container 100. In Fig. 7, the upper wall 50 is shown in an open state in order to show the inside of the package 200. The package 200 may be closed so that the upper wall 50 covers the upper ends of the side walls 10 and 20, as shown in Figs.

[0039] If cut flowers or the like are accommodated in the internal space of the packaging container 100 as shown in FIG. 7, a package 200 can be obtained. The number and type of cut flowers 150 accommodated are not limited. The cut flowers 150 may be dried flowers. Artificial flowers may be accommodated instead of cut flowers, or both cut flowers and artificial flowers may be accommodated. Since the internal space 88 of the packaging container 100 has a flat shape, the number of cut flowers 150 or the like accommodated can be increased while reducing the thickness of the packaging body 200. Since the packaging body 200 includes the packaging container 100 made of paper, it is lightweight and packed compactly. This provides excellent convenience for delivery. In addition, damage to the cut flowers 150 or the like during delivery can be suppressed, and the cut flowers 150 or the like can be adequately protected.

[0040] The upper wall 50 of the packaging container 100 may be composed of a plurality of members as shown in FIG. 7. FIG. 7 shows an example of the structure of the upper wall 50. The upper wall 50 has a pair of flaps 56, 57, and an exterior part 55 that covers the flaps 56, 57 folded toward the internal space 88 and is exposed to the outside. The upper wall 50 is formed by covering the flaps 56, 57 with the exterior part 55 and inserting the flap 55A at the tip of the exterior part 55 so as to follow the inner surface of the side wall 20. If the tongue part 25 provided at the upper end of the upper wall is inserted into the notch 55B provided at the base of the flap 55A of the exterior part 55, the upper wall 50 can be engaged with the side wall 20. In this way, by providing an engagement part that engages the upper wall 50 with the side wall 20, the strength of the holding part 41 can be sufficiently increased. The upper wall 50 does not have to be composed of a plurality of members. For example, in a modified example, the upper wall 50 may be composed of only the exterior part 55. The upper wall 50 may be structured so as to open like double doors.

[0041] FIG. 8 shows an example of a paper pattern for forming the packaging container 100. The packaging container 100 can be obtained by assembling a paper pattern 101 made of a single sheet of paper. FIG. 8 shows the front side of the packaging container 100 when the packaging container 100 is unfolded. Side wall materials 20A and 20B that become the side walls 20 are connected to both sides of the side wall 10 via mountain fold lines 85 and 86, respectively. Gusset portions 30A and 30B are provided below the mountain fold lines 85 and 86 between the side wall 10 and the side wall materials 20A and 20B. The folding width W2 of the gusset portions 30A and 30B increases toward the lower end side of the side walls 10 and 20.

[0042] The side wall 10 and the side wall material 20A are partitioned by a partition line 85 and a gusset portion 30A, and the side wall 10 and the side wall material 20B are partitioned by a partition line 86 and a gusset portion 30B. A lower wall member forming a lower wall 60 is connected to the lower end of the side wall 10. The lower wall member has a main member 62 connected to the side wall 10 and a flap 62A connected to its tip. A tongue-shaped portion 65 is provided at the tip of the flap 62A. This tongue-shaped portion 65 is inserted through the through hole 27 from the internal space side and is inserted into the notch 26. An upper wall member forming an upper wall 50 is connected to the upper ends of the side wall 10 and the side wall materials 20A and 20B. The upper wall member includes an exterior portion 55 and a flap 56 connected adjacent to the upper end of the side wall 10, a flap 57 connected to the upper end of the side wall material 20A, and a tongue-shaped portion 25 connected to the upper end of the side wall material 20B.

[0043] The packaging container 100 and the package 200 can be obtained by assembling the template 101 in the following procedure. The side wall 10 is folded along the central mountain fold line 81, and the side wall materials 20A, 20B are folded along mountain fold lines 85, 86 relative to the side wall 10 to form a tube. At the same time, the template 101 is folded along the valley fold line 33 and mountain fold line 32, and the portions that will become the gusset portions 30A, 30B are folded between the side walls 10, 20. After mountain folding along the mountain fold lines 82, 83, the bonding portions 22, 23 are overlapped with the bonding portion 22 facing outward. If an adhesive is applied to the surface of the bonding portion 23 in advance, the bonding portions 22, 23 can be bonded together smoothly. Instead of adhesive, for example, double-sided tape may be used for bonding.

[0044] Next, the bottom wall 60 is assembled. Specifically, the main member 62 is mountain-folded along the crease to form the long side E1. The flap 62A at the tip of the main member 62 is mountain-folded along the crease to form the long side E2, and the flap 62A is inserted so as to fit along the inner surface of the side wall material 20B. Then, the tongue-shaped portion 65 provided at the tip of the flap 62A is inserted into the slit 26 through the through hole 27. As a result, the gusset portions 30A, 30B are folded between the side walls 10, 20, and the bottom wall 60 is engaged with the side wall 20.

[0045] Cut flowers or the like are inserted from the upper end side of the side walls 10 and 20 so that their stems face the lower wall 60 side. Then, the upper wall 50 is assembled. Specifically, the flaps 57 and 56 are each mountain-folded along the lines at the upper end of the side wall material 20A and the upper left end of the side wall 10, and then the exterior part 55 is mountain-folded along the lines at the upper right end of the side wall 10. The flap 55A at the tip of the exterior part 55 is folded and inserted into the internal space along the upper inner surface of the side wall material 20B. Then, the tongue-shaped part 25 provided at the upper end of the side wall material 20B is inserted into the notch 55B provided at the base of the flap 55A. In this manner, the upper wall 50 is engaged with the side wall 20.

[0046] In this manner, the packaging container 100 can be obtained by assembling one piece of paper template 101 (paper material). However, the packaging container 100 may also be obtained by assembling a paper template different from the paper template 101.

[0047] Although several embodiments and modified examples of the present disclosure have been described above, the present disclosure is not limited to the above. For example, the side walls 10, 20 of the packaging container 100 have only one mountain fold line on the surface, but two or more mountain fold lines may be provided. In this case, the upper wall 50 may be hexagonal, and mountain fold lines may be formed so as to extend from each corner of the upper wall toward the lower wall 60. The side wall materials 20A, 20B may be joined using tongue-shaped portions and cuts instead of adhesive. In this case, the bonding portions 22, 23 may be overlapping portions. There is no limit to the shape and number of the through holes 70, and the through holes may not be present. [Explanation of symbols]

[0048] 10, 20... side wall, 12... opening perforation line, 14... intended opening portion, 20A, 20B... side wall material, 22, 23... pasted portion (overlapped portion), 24... side edge, 25, 65... tongue-shaped portion, 27, 31, 35, 70... through hole, 30A, 30B... gusset portion, 32, 81, 82, 83... mountain fold line, 33... valley fold line, 36A, 36B... tip, 40, 41... holding portion, 50... upper Wall, 51, 52, 53, 54...corner, 55...exterior part, 55A, 56, 57, 62A...flap, 60...bottom wall, 62...main part, 85, 86...dividing line (mountain fold line), 88...internal space, 100...packaging container, 101...paper pattern, 150...cut flowers, 200...packaging body, E1, E2...long side, E3, E4...short side, L1, L2...diagonal, W1...width of side wall, W2...fold width.

Claims

1. A paper packaging container having an internal space for storing cut flowers or artificial flowers, A pair of side walls; a polygonal upper wall provided on the upper end sides of the pair of side walls; a polygonal bottom wall provided at the lower end of the pair of side walls; a pair of gusset portions that are folded between the pair of side walls so that their tips face each other to maintain a distance between the pair of side walls; The pair of side walls each have mountain fold lines extending linearly from a pair of corners of the upper wall toward a midpoint of the opposing sides of the lower wall, A packaging container, wherein a folding width of the pair of gusset portions increases from the upper end side toward the lower end side.

2. The packaging container according to claim 1 , wherein the width of the pair of side walls decreases as the folded width increases from the upper end side to the lower end side.

3. The packaging container according to claim 1 or 2, wherein, in a top view, a first diagonal line connecting a pair of corner portions of the upper wall is perpendicular to a direction in which the tips of the pair of gusset portions face each other.

4. the upper wall has a rhombus shape in which a second diagonal perpendicular to the first diagonal is longer than the first diagonal, the lower wall has a rectangular shape having a short side parallel to the first diagonal line and a long side parallel to the second diagonal line, The packaging container of claim 3 , wherein the upper wall has a larger area than the lower wall.

5. The packaging container according to any one of claims 1 to 4, wherein a cross section of the internal space at a portion having a maximum area has a flattened shape.

6. The packaging container according to any one of claims 1 to 5, wherein the side wall includes a cut or through hole in the center and an intended opening portion defined by two perforation lines extending radially from the cut or through hole toward the upper end of the side wall.

7. The packaging container according to any one of claims 1 to 6, which is made of a single sheet of paper material.

8. A template for forming the packaging container according to any one of claims 1 to 7.

9. A package comprising the packaging container according to any one of claims 1 to 7 and the cut flower or artificial flower contained in the packaging container.

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