Packaging container and blank sheet thereof
A paper packaging container with a shaped lid window and tray windows addresses the challenge of visibility and plastic waste by ensuring clear item visibility and preventing ejection, while being eco-friendly.
Patent Information
- Application Number
- JP2025170404
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2025-10-08
- Publication Date
- 2025-12-11
AI Technical Summary
Existing packaging containers face challenges in providing visibility of stored items while reducing plastic waste, as replacing plastic with other materials requires redesigning to maintain visibility and prevent items from falling out.
A paper packaging container with a tray and lid, featuring a first through window on the lid shaped to match the stored item and a second through window in the tray, allowing clear visibility and preventing items from falling out, using a configuration of five continuous surfaces and specific folding lines for assembly.
The solution provides clear visibility of stored items, prevents them from falling out, and is environmentally friendly by using paper materials, enhancing both aesthetic appeal and functionality.
Smart Images
Figure 2025182144000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to a packaging container that can store articles while improving visibility. [Background technology]
[0002] BACKGROUND ART Conventionally, packaging containers have been widely used to store and package goods to prevent them from getting dirty or damaged during the distribution process of goods, and many of the packaging containers not only have the function of simply packaging goods but also incorporate various features.
[0003] For example, Patent Documents 1 and 2 disclose a configuration in which a packaging container is made up of two parts, a tray and a lid (a so-called blister pack configuration), to prevent stored items from accidentally falling out when opened, and the stored items are temporarily held in the tray by opening the lid with the tray side facing down, or a configuration in which transparent plastic is used for the tray so that the stored items can be seen from the outside. [Prior art documents] [Patent documents]
[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-175674 [Patent Document 2] Japanese Patent Application Laid-Open No. 2014-172629 Summary of the Invention [Problem to be solved by the invention]
[0005] Incidentally, in recent years, the problem of plastic waste has become more serious worldwide, and there is a desire to replace plastic with other materials in order to improve the global environment. However, even if the plastic of the tray were replaced with another material, it would still be necessary to redesign it from the perspective of making the stored items visible from the outside, and there is still room for improvement in the structure of packaging containers.
[0006] An object of the present invention is to provide a packaging container having a tray and a lid, which can improve the visibility of stored items. [Means for solving the problem]
[0007] The packaging container according to the present invention is a paper packaging container formed by adhering a container body having a storage section capable of storing an article and a lid, wherein the lid is formed with a first through window that is shaped to correspond to the outer contour of the stored article and is smaller than the outer contour, and the storage section of the container body is formed with a second through window that allows the stored article to be visually confirmed, and the length of the second through window in the longitudinal direction of the container body is shorter than the length of the article, and the storage section is made up of five continuous surfaces that define the storage space. The device is configured to include five side portions: a rectangular first side portion; a pair of second side portions that are bent from a pair of mutually parallel first edges of the first side portion and are respectively connected to the first side portion; and a third side portion and a fourth side portion that are perpendicular to the pair of first edges and are bent from a pair of mutually parallel second edges of the first side portion and are respectively connected to the first side portion, and the second through window portion is formed from one of the second side portions to the other second side portion so as to straddle the first side portion.
[0008] Furthermore, the blank sheet for a packaging container according to the present invention is a blank sheet for the container body, and comprises a rectangular first surface portion having a pair of first folding lines parallel to each other and a pair of second folding lines perpendicular to the first folding lines and parallel to each other; a pair of quadrangular second surface portions each connected to the first surface portion via the pair of first folding lines and having a pair of third folding lines parallel to each other and facing the first folding lines; and a pair of quadrangular fourth folding lines each connected to the first surface portion via the pair of second folding lines and having a pair of fourth folding lines parallel to each other and facing the second folding lines. The container body has a blank sheet for the lid, the blank sheet for the lid having a third surface portion and a fourth surface portion, a pair of fifth surface portions respectively connected to the pair of second surface portions via the pair of third folding lines, and a sixth surface portion and a seventh surface portion respectively connected to the third surface portion and the fourth surface portion via the pair of fourth folding lines, and the second through window portion is formed so that the pair of first folding lines are interrupted and separated at the middle portion in the first surface portion and the pair of second surface portions, and the blank sheet for the lid has the first through window portion formed at the middle portion. [Effects of the Invention]
[0009] According to the present invention, the entire packaging container is made of paper, making it environmentally friendly. In addition, the lid of the packaging container is formed with a through window that is shaped to correspond to the outer contour of the stored items and is smaller than the outer contour, allowing the stored items to be clearly visible from the outside and preventing the stored items from falling out of the packaging container. [Brief explanation of the drawings]
[0010] [Figure 1] 1A and 1B are six-view diagrams of a packaging container according to a first embodiment of the present invention, where (a) is a front view, (b) is a right side view, (c) is a left side view, (d) is a plan view, (e) is a bottom view, and (f) is a back view. [Figure 2]1(a) is an enlarged cross-sectional view taken along line AA in FIG. 1(a), and FIG. 1(b) is an enlarged cross-sectional view taken along line BB in FIG. 1(a). [Figure 3] 1A and 1B are perspective views of a packaging container according to a first embodiment of the present invention, in which (a) is an overall perspective view seen from the lid side, and (b) is an overall perspective view seen from the container body side. [Figure 4] 1A and 1B are perspective views of a first embodiment of the present invention, in which FIG. 1A is a perspective view of a container body, and FIG. 1B is an exploded perspective view of a packaging container. [Figure 5] 1A and 1B are perspective views of a packaging body in which an item is contained in a packaging container according to a first embodiment of the present invention, where (a) is an overall perspective view seen from the lid side, and (b) is an overall perspective view seen from the container body side. [Figure 6] These are plan views of blank sheets for the container body and lid of a packaging container according to the first embodiment of the present invention, where (a) is a plan view of the blank sheet for the container body, and (b) is a plan view of the blank sheet for the lid. [Figure 7] 6A and 6B are six-view diagrams of a packaging container according to a second embodiment of the present invention, where (a) is a front view, (b) is a right side view, (c) is a left side view, (d) is a plan view, (e) is a bottom view, and (f) is a back view. [Figure 8] 1(a) is an enlarged cross-sectional view taken along line AA in FIG. 1(a), and FIG. 1(b) is an enlarged cross-sectional view taken along line BB in FIG. 1(a). [Figure 9] 5A and 5B are perspective views of a packaging container according to a second embodiment of the present invention, where (a) is an overall perspective view seen from the lid side, and (b) is an overall perspective view seen from the container body side. [Figure 10] 5A and 5B are perspective views according to a second embodiment of the present invention, in which (a) is a perspective view of a container body, and (b) is an exploded perspective view of a packaging container. [Figure 11] 10A and 10B are perspective views of a packaging body in which an item is contained in a packaging container according to a second embodiment of the present invention, where (a) is an overall perspective view seen from the lid side, and (b) is an overall perspective view seen from the container body side. [Figure 12]10A and 10B are plan views of blank sheets for the container body and lid of a packaging container according to a second embodiment of the present invention, where (a) is a plan view of the blank sheet for the container body, and (b) is a plan view of the blank sheet for the lid. DETAILED DESCRIPTION OF THE INVENTION
[0011] Hereinafter, an embodiment of the present invention will be described in detail with reference to Figures 1 to 12. However, the present invention is not limited to this embodiment. In this specification and claims, the term "rectangle" includes not only rectangular and approximately rectangular shapes, but also squares and approximately squares.
[0012] First Embodiment FIG. 1 is a six-view diagram of a packaging container 1 according to a first embodiment of the present invention, with FIG. 1(a) being a front view, FIG. 1(b) being a right side view, FIG. 1(c) being a left side view, FIG. 1(d) being a plan view, FIG. 1(e) being a bottom view, and FIG. 1(f) being a back view. FIG. 2 is a cross-sectional view of the packaging container 1 according to this embodiment, with FIG. 2(a) being an enlarged cross-sectional view taken along line AA in FIG. 1(a), and FIG. 2(b) being an enlarged cross-sectional view taken along line BB in FIG. 1(a). FIG. 3 is a perspective view of the packaging container 1 according to this embodiment, with FIG. 3(a) being an overall perspective view seen from the lid 20 side, and FIG. 3(b) being an overall perspective view seen from the container body 10 side. FIG. 4 is a perspective view according to this embodiment, with FIG. 4(a) being a perspective view of the container body 10, and FIG. 4(b) being an exploded perspective view of the packaging container 1. Figure 5 is an oblique view of a packaging body 1P in which an item P is contained in a packaging container 1 according to this embodiment, where Figure 5(a) is an overall oblique view seen from the lid portion 20 side, and Figure 5(b) is an overall oblique view seen from the container main body portion 10 side.
[0013] The packaging container 1 according to this embodiment is a paper container made of cardboard, and the packaging body 1P according to this embodiment is configured by storing the main part of an item P (in this embodiment, a ballpoint pen) in the storage section 11 of the tray-shaped container body 10 of the packaging container 1. The item P is represented by a two-dot chain line in FIGS. 4(b), 5(a), and 5(b) of this embodiment and in FIGS. 10(b), 11(a), and 11(b) of the second embodiment described below. In this specification and claims, "storing the main part of the item" refers to a state in which more than half of the item is stored in the storage section, and includes, for example, a state in which the knock portion N of the ballpoint pen P protrudes from the first through window 21 of the lid 20, as shown in FIGS. 5(a) and 5(b). In this invention, the item stored in the packaging container is not limited to a ballpoint pen, but may also be, for example, a thin writing instrument other than a ballpoint pen (including a pencil) or everyday items such as a toothbrush.
[0014] 1 to 4, the packaging container 1 according to this embodiment is a paper packaging container 1 formed by adhering a container body 10 having a storage section 11 capable of storing an article P to a lid 20, and the lid 20 is formed with a first through window 21 that has a shape corresponding to and is smaller than the outer contour of the stored article P. In this embodiment, the lid 20 is flat, but the present invention is not limited to this, and lids of various shapes can be used as long as they can be attached to the container body 10 to store the article P and have the first through window 21 formed.
[0015] 1 to 4, the container body 10 is made up of a storage section 11 and a flange section 12, and the flange section 12 is made up of a pair of fifth surface sections S5, sixth surface sections S6, and seventh surface sections S7, and the lid section 20 is bonded to the flange section 12 via an adhesive. The bonding method may be a heat sealing process using a heat sealing material, a process using a laminating material, or a method of applying an adhesive layer using double-sided tape or dry lamination using an adhesive.
[0016] Heat sealing materials are bonded by applying heat, ultrasound, etc., and the heat sealing materials are not particularly limited, but include polyolefin resins (polyethylene, polypropylene, etc.), ethylene-vinyl acetate copolymers, vinyl chloride resins, styrene resins, styrene / butadiene copolymers, styrene / unsaturated carboxylic acid copolymers (for example, styrene / (meth)acrylic acid copolymers), styrene / acrylic copolymers (for example, styrene / (meth)acrylic acid ester copolymers), acrylic resins, acrylonitrile / styrene copolymers, acrylonitrile / butadiene copolymers, ABS resins, AAS resins, etc. Examples of suitable resins include resins, AES resins, vinylidene chloride resins, polyurethane resins, poly-4-methylpentene-1 resins, polybutene-1 resins, vinylidene fluoride resins, vinyl fluoride resins, fluorine-containing resins, polycarbonate resins, polyamide resins, acetal resins, polyphenylene oxide resins, polyester resins (polyethylene terephthalate, polybutylene terephthalate, etc.), polyphenylene sulfide resins, polyimide resins, polysulfone resins, polyethersulfone resins, polyarylate resins, olefin / unsaturated carboxylic acid copolymers, and modified versions thereof. These may be used alone or in combination. Among these, ethylene-vinyl acetate copolymers, olefin / unsaturated carboxylic acid copolymers, and / or styrene / butadiene copolymers are preferred due to their high heat seal strength. Among these, styrene / butadiene copolymers are more preferred from the standpoints of adhesiveness and recyclability.
[0017] The laminating material is also bonded by heating, applying ultrasonic waves, etc., and there are no particular limitations on the laminating material as long as it can be laminated onto paper, and it may be appropriately selected from known thermoplastic resins.
[0018] Specific examples include polyester resins such as polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, polylactic acid, and polybutylene succinate; polyolefin resins such as polyvinyl chloride, polyvinylidene chloride, polybutene, polybutadiene, ethylene-vinyl acetate copolymer, polyethylene, polypropylene, ethylene-propylene copolymer, and polymethylpentene; polycarbonate; polyurethane; polyamide; polyacrylonitrile; and poly(meth)acrylate.
[0019] Among these thermoplastic resins, polyethylene (PE) or polypropylene (PP) are preferred due to their excellent adhesiveness and extrusion lamination properties. PE is classified into linear low-density polyethylene (LLDPE), low-density polyethylene (LDPE), medium-density polyethylene (MDPE), and high-density polyethylene (HDPE), and low-density polyethylene (LDPE) is preferred due to its excellent extrusion lamination properties and foamability.
[0020] The adhesive is not particularly limited as long as it can be dry-laminated to paper, and may be appropriately selected from known resins. Specifically, adhesives such as water-based, solvent-based, and UV-based adhesives can be used, and among them, water-based adhesives are preferred from the viewpoint of reducing environmental impact. Among the water-based adhesives, at least one selected from the group consisting of acrylic adhesives, polyurethane adhesives, and isocyanate adhesives is preferred, and acrylic adhesives are more preferred from the viewpoint of adhesion and durability.
[0021] The thickness of the adhesive layer is preferably 1 to 50 μm, more preferably 2 to 40 μm, and even more preferably 5 to 30 μm.
[0022] In the present invention, a laminate layer may be provided on the outer side (the side that comes into contact with hands) of the paperboard of the container body or lid of the packaging container in order to impart water resistance.
[0023] 1 to 4, the flange portion 12 of the packaging container 1 according to this embodiment is formed by butting each surface portion together with no gaps, forming a flange shape with almost no seams. This configuration improves aesthetic appeal and firmly bonds the container body 10 and the lid 20 together, preventing the packaging from easily coming undone.
[0024] In this embodiment, as shown in Figures 1 to 4, the first through window 21 is formed to correspond to the shape of the stored item and is formed to be smaller than the outer shape of the stored item. The first through window 21 has cutouts so that the knock portion (or eraser portion) on the top of the ballpoint pen P and the clip portion (or knock portion) on the side can be seen. Due to this shape, even if the clip portion (or knock portion) of the ballpoint pen P protrudes from the first through window 21, the ballpoint pen P can be kept stored.
[0025] In this embodiment, as shown in Figures 5(a) and 5(b), as described above, the ballpoint pen P is stored in the packaging container 1 with the knock portion N of the ballpoint pen P protruding from the first through window portion 21, forming a package 1P.
[0026] 1 to 4, in the packaging container 1 according to this embodiment, the storage section 11 of the container body 10 is formed with a second through window 111 so that the stored item P can be seen. With this configuration, light can be allowed to enter from the first through window 21 through the second through window 111, thereby improving the visibility of the product. While the first through window 21 alone allows the packaged item to be seen, the provision of the second through window 111 allows light to enter, further improving visibility. Note that the present invention also allows for an embodiment in which the second through window 111 is not provided.
[0027] Furthermore, in the packaging container 1 of this embodiment, as shown in Figures 1 to 4, the storage section 11 is composed of five continuous surfaces that define the storage space R, including a rectangular first side surface S1, a pair of second side surfaces S2 that are bent from a pair of mutually parallel first edges L1 of the first side surface S1 and each connected to the first side surface S1, and a third side surface S3 and a fourth side surface S4 that are each perpendicular to the pair of first edges L1 and bent from a pair of mutually parallel second edges L2 of the first side surface S1 and each connected to the first side surface S1.
[0028] 1 to 4, in this embodiment, the second through window 111 is formed from one second side surface portion S2 to the other second side surface portion S2 so as to straddle the first side surface portion S1. With this configuration, part of the appearance of the stored product can be seen through the second through window 111 not only when the package 1P is viewed from the front or back side but also when viewed from the side.
[0029] 1 to 4, in the packaging container 1 according to this embodiment, the storage section 11 of the container body 10 has an elongated shape, and the cross sections of the pair of second side surfaces perpendicular to the longitudinal direction of the storage section 11 are inclined inward as they move away from the lid 20. This configuration improves the fit of round products such as ballpoint pens and also improves the visibility of the products.
[0030] 1 to 4, a circular hole 123 is provided in the upper portion of the packaging container 1 according to this embodiment so that the packaging container 1 can be hung from a hook on a product display shelf or the like. The hole 123 is provided by forming a hole 13 in the upper portion of the sixth surface S6 of the container body 10 and a hole 23 in the upper portion of the lid 20. In the present invention, the shape of the hole 123 is not limited to a circle, and may be an oval, a rounded rectangle, or another shape.
[0031] Figure 6 is a plan view of blank sheets 10B and 20B, respectively, of the container body 10 and lid 20 of the packaging container 1 of this embodiment, with Figure 6(a) being a plan view of blank sheet 10B of the container body 10, and Figure 6(b) being a plan view of blank sheet 20B of the lid 20.
[0032] In this embodiment, the blank sheet of the packaging container 1 is composed of a blank sheet 10B of the container body 10 having a second through window 111 formed in the middle thereof, and a blank sheet 20B of the lid 20 having a first through window 21 formed in the middle thereof, as shown in Fig. 6. As shown in Fig. 6(a), the blank sheet 10B of the container body 10 comprises a rectangular first surface S1 (first side surface) having a pair of first folding lines (first edges) L1 parallel to each other and a pair of second folding lines (second edges) L2 perpendicular to the first folding lines L1 and parallel to each other, a pair of quadrangular second surfaces S2 (second side surfaces) S2 each having a pair of third folding lines L3 parallel to each other and connected to the first surface S1 via the pair of first folding lines L1, and facing the first folding lines L1, and The second through window 111 includes a rectangular third surface (third side surface) S3 and a rectangular fourth surface (fourth side surface) S4, each of which is connected to the first surface S1 via a pair of second folding lines L2 and has a pair of parallel fourth folding lines L4 facing the second folding lines L2. A pair of fifth surface S5 connects to the pair of second surface S2 via the pair of third folding lines L3, and a pair of sixth surface S6 and seventh surface S7 connect to the third surface S3 and the fourth surface S4 via the pair of fourth folding lines L4. The second through window 111 is formed so that the pair of first folding lines L1 are interrupted and separated at the middle in the first surface S1 and the pair of second surface S2. In this embodiment, the pair of second surface S2, third surface S3, and fourth surface S4 each have a trapezoidal shape. In the present invention, each folding line may be configured as a crease, a lead crease, or a perforation. For example, the first folding line L1 and the second folding line L2 of the mountain fold may be configured as creases, and the third folding line L3 and the fourth folding line L4 of the valley fold may be configured as lead creases (or perforations), or other configurations may be used.
[0033] BACKGROUND ART Conventionally, packaging containers have been widely used to store and package goods to prevent them from getting dirty or damaged during the distribution process of goods, and many of the packaging containers not only have the function of simply packaging goods but also incorporate various features.
[0034] For example, it is known that a packaging container is made up of two parts, a tray and a lid, so that the stored items do not accidentally fall out when opened, and the stored items are temporarily held in the tray by opening the lid with the tray side facing down, or that transparent plastic is used for the tray so that the stored items can be seen from the outside.
[0035] Incidentally, in recent years, the problem of plastic waste has become more serious worldwide, and there is a desire to replace plastic with other materials in order to improve the global environment. However, even if the plastic of the trays were replaced with other materials, they would still need to be designed from the perspective of making the stored items visible from the outside, and there is still room for improvement in the structure of packaging containers.
[0036] According to this embodiment, the entire packaging container 1 is made of paper, making it environmentally friendly. In addition, the lid portion 20 of the packaging container 1 is formed with a through window portion 21 that is shaped to correspond to the outer contour of the stored item P and is smaller than the outer contour, so that the stored item P can be clearly seen from the outside and it is possible to prevent the stored item P from falling out of the packaging container 1.
[0037] In other words, according to this embodiment, it is possible to give the package a three-dimensional shape, so that it is possible to wrap packaged items such as ballpoint pens, and since the size of the long side of the first through window portion 21 of the lid portion 20 is set to be shorter than the product P stored therein, it is possible to prevent the product P from falling out of the package.
[0038] In order to achieve the effects of the present invention, the dimension of the long side of the first through window portion 21 is preferably 50% or more and 99% or less of the dimension of the long side of the object to be packaged, from the standpoint of preventing the product from falling out and aesthetic appeal, more preferably 70% or more and 95% or less, and even more preferably 80% or more and 90% or less.
[0039] Second Embodiment In the second embodiment of the present invention, unlike the first embodiment, in the storage section 11' of the packaging container 1', the height of the first surface portion S1 is changed from one end to the other in the longitudinal direction and is inclined relative to the lid portion 20', making it possible to store the protruding portion of the stored item P (in this embodiment, the clip portion (or knock portion) of a ballpoint pen) in the storage space R'. Therefore, unlike the first embodiment, the shape of the first through window portion 21' of the lid portion 20' can be made simple, the shape of the cutout of the first through window portion 21' is simplified, and the occurrence of defective products can be reduced.
[0040] Fig. 7 shows six views of a packaging container 1' according to a second embodiment of the present invention, with Fig. 7(a) being a front view, Fig. 7(b) being a right side view, Fig. 7(c) being a left side view, Fig. 7(d) being a plan view, Fig. 7(e) being a bottom view, and Fig. 7(f) being a back view. Fig. 8 shows cross-sectional views of the packaging container 1' according to this embodiment, with Fig. 8(a) being an enlarged cross-sectional view taken along line AA in Fig. 7(a), and Fig. 8(b) being an enlarged cross-sectional view taken along line BB in Fig. 7(a). Fig. 9 shows perspective views of the packaging container 1' according to this embodiment, with Fig. 9(a) being an overall perspective view seen from the lid 20' side, Fig. 9(b) being an overall perspective view seen from the container body 10' side, and Fig. 10 showing perspective views according to this embodiment, with Fig. 10(a) being a perspective view of the container body 10', and Fig. 10(b) being an exploded perspective view of the packaging container 1'. 11(a) is an overall perspective view seen from the lid portion 20' side, and FIG. 11(b) is an overall perspective view seen from the container body portion 10' side. Of the elements constituting the packaging container 1' according to this embodiment, those having similar functions are assigned the same reference numerals as in the first embodiment, and descriptions thereof will be omitted.
[0041] As in the first embodiment, the packaging container 1' of this embodiment is a paper packaging container 1' made by adhering a container body 10' having a storage section 11' capable of storing an item P to a lid section 20', as shown in Figures 7 to 10, and the lid section 20' has a first through window section 21' formed in a shape corresponding to the outer contour of the stored item P and smaller than the outer contour.
[0042] 7 to 10, in the packaging container 1' according to this embodiment, the storage section 11 of the container body 10 has an elongated shape, and the first side surface S1 of the storage section 11' is inclined with respect to the lid section 20' so that the height changes from one end to the other end in the longitudinal direction of the container body 10. More specifically, the first side surface S1 of the storage section 11' becomes lower from the third surface S3' side to the fourth surface S4' side in the longitudinal direction of the container body 10.
[0043] In this embodiment, as shown in Figures 11(a) and 11(b), the ballpoint pen P is stored in the packaging container 1' so that the knock portion N of the ballpoint pen P fits completely into the higher portion of the storage section 11' on the third surface portion S3' side, i.e., the portion of the storage space R' where the storage space is wider on the third surface portion S3' side, thereby forming a package 1P'.
[0044] In the packaging container 1' of this embodiment, as described above, as shown in Figures 7 to 10, the first through window portion 21' differs from the first through window portion 21 of the first embodiment in that, as described above, it has a simple configuration without any parts corresponding to the knock portion (or eraser portion) or clip portion (or knock portion) of a ballpoint pen.
[0045] Figure 12 is a plan view of blank sheets 10B' and 20B', respectively, which show the container body 10' and lid 20' of the packaging container 1' of this embodiment unfolded, Figure 12(a) is a plan view of blank sheet 10B' of container body 10', and Figure 12(b) is a plan view of blank sheet 20B' of lid 20'.
[0046] In this embodiment, the pair of second surface portions S2', third surface portion S3', and fourth surface portion S4' of the storage portion 11' in the blank sheet 10B' of the container body 10' of the packaging container 1' are configured so that the first surface portion S1 becomes lower from the third surface portion S3' side to the fourth surface portion S4' side in the longitudinal direction of the container body 10'. As one of the configurations, the two third folding lines L3 are each inclined with respect to the first folding line L1, as shown in Fig. 12, and are arranged so as to approach each other from the third surface portion S3' side to the fourth surface portion S4' side.
[0047] According to this embodiment, like the first embodiment, it is environmentally friendly, and allows the stored item P to be clearly visible from the outside, and in addition to preventing the stored item P from falling out of the packaging container 1', it also makes it easier to store rod-shaped items with a protrusion on one end, such as the clip portion (or knock portion) of a ballpoint pen, in the storage space R', thereby making it possible to reliably protect the stored item P during transportation.
[0048] <Other> The present invention is not limited to the above-described embodiment or the modifications described throughout, and appropriate changes and modifications can be made without departing from the technical concept of the present invention.
[0049] For example, the combination of the container body 10 and the lid 20 in the first embodiment and the combination of the container body 10' and the lid 20' in the second embodiment may be reversed.
[0050] Additionally, in each of the above-described embodiments, the width of the first surface portion S1 may be varied to be shorter or longer as long as the effects of the present invention are achieved. The same applies to the dimensions of the other surfaces.
[0051] Furthermore, in each of the above-described embodiments, the container body 10 (or 10') and the lid 20 (or 20') are separate, but this is not limited to this in the present invention, and a configuration in which the container body and the lid are connected to form a single sheet is also acceptable. [Explanation of symbols]
[0052] 1, 1' packaging container 1P, 1P' packaging 10, 10' Container body 10B, 10B' Blank sheet for container body 11, 11' storage area 12 Flange 13 holes 111 Second through window R, R' storage space S1 1st side part (1st side part) S2, S2' 2nd side part (2nd side part) S3, S3' 3rd side part (3rd side part) S4, S4' 4th side part (4th side part) S5 5th side S6 6th side S7 7th side L1 First fold line (first edge) L2 Second fold line (second edge) L3 Third bending line L4 Fourth bending line L5 5th bending line 20, 20' Lid 20B, 20B' Blank sheet for lid 21, 21' First through window 23 holes P Goods
Claims
1. A paper packaging container comprising a container body having a storage section capable of storing an article and a lid attached thereto, wherein the lid has a first through window formed in a shape corresponding to an outer contour of the stored article and smaller than the outer contour, a second through window portion is formed in the storage portion of the container body portion so that the stored article can be visually confirmed, and the length of the second through window portion in the longitudinal direction of the container body portion is shorter than the length of the article; The storage section is configured to include five continuous surfaces that define the storage space, the five surfaces being a rectangular first side surface, a pair of second side surfaces that are bent from a pair of first edges that are parallel to each other of the first side surface and connected to the first side surface, and a third side surface and a fourth side surface that are perpendicular to the pair of first edges and bent from a pair of second edges that are parallel to each other of the first side surface and connected to the first side surface, The packaging container is characterized in that the second through window portion is formed from one of the second side surface portions to the other of the second side surface portions so as to straddle the first side surface portion.
2. The storage section of the container body has an elongated shape, 2. The packaging container according to claim 1, wherein the cross sections of the pair of second side surfaces perpendicular to the longitudinal direction of the storage section are inclined inward as they move away from the lid section.
3. The storage section of the container body has an elongated shape, The packaging container according to claim 1, characterized in that the first side portion of the storage portion is inclined relative to the lid portion so that its height changes from one end to the other end in the longitudinal direction of the container body portion.
4. The packaging container according to any one of claims 1 to 3, characterized in that a film provided to close the opening of the second through window portion is omitted.
5. 5. The packaging container according to claim 1, wherein the article is a writing implement.
6. 6. The packaging container according to claim 1, wherein the storage section of the container body stores a main part of the article or the writing implement.
7. A blank sheet for a packaging container according to any one of claims 1 to 5, A blank sheet for the container body, a rectangular first surface portion having a pair of first bending lines parallel to each other and a pair of second bending lines perpendicular to the first bending lines and parallel to each other; a pair of rectangular second surface portions connected to the first surface portion via the pair of first bending lines and having a pair of third bending lines facing the first bending lines; a rectangular third surface portion and a rectangular fourth surface portion, each connected to the first surface portion via the pair of second bending lines and each having a pair of fourth bending lines that are parallel to each other and face the second bending lines; a pair of fifth surface portions respectively connected to the pair of second surface portions via the pair of third folding lines; a sixth surface portion and a seventh surface portion connected to the third surface portion and the fourth surface portion, respectively, via the pair of fourth folding lines; Equipped with the second through window portion is formed in the first surface portion and the pair of second surface portions such that the pair of first folding lines are interrupted and separated at intermediate portions of the blank sheet of the container body portion; a blank sheet for the lid portion, the blank sheet for the lid portion having the first through window portion formed in a middle portion thereof; A blank sheet for a packaging container, comprising:
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