Package
The package design with a U-shaped core and folded sheet-like materials addresses the issue of large display area and instability by enabling stable placement with the narrow surface down, reducing collapse risks.
Patent Information
- Application Number
- JP2023106576
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-06-29
- Publication Date
- 2025-01-17
- Estimated Expiration
- 2043-06-29
AI Technical Summary
Conventional packages, especially those containing sheet-like articles, require a large display area due to their rectangular shape, leading to instability when stacked or placed with a smaller surface facing down, and often result in collapse or instability on shelves.
A package design where sheet-like articles are wrapped in a packaging material with a core material forming a U- or ⊃-shaped cross section, with the sheet-like materials covering the connecting portion and ends folded inward, allowing stable placement with the narrow surface facing down.
This design reduces the required display area and ensures stable placement, preventing collapse of the contents even when the smaller surface is facing down, maintaining structural integrity.
Smart Images

Figure 2025006035000001_ABST
Abstract
Description
[Technical field]
[0001] The present invention relates to a package in which one or more sheet-like objects are packaged in a packaging material. [Background technology]
[0002] Conventionally, there has been known a package in which a large number of sheet-like plastic bags are stored and from which the plastic bags can be taken out one by one (see Patent Documents 1 to 4). [Prior art documents] [Patent documents]
[0003] [Patent Document 1] Patent Publication No. 2021-41936 [Patent Document 2] Registered Utility Model No. 3217095 [Patent Document 3] Registered Utility Model No. 3170655 [Patent Document 4] Registered Utility Model No. 3139770 Summary of the Invention [Problem to be solved by the invention]
[0004] Conventional packaging bodies are generally formed into a rectangular parallelepiped, and are placed on a placement surface with the surface with the largest area among the six surfaces of the rectangular parallelepiped serving as the bottom surface. For this reason, a large area is required for placing the packages. For example, in a display shelf of a store that sells packages, if the area required for displaying the packages becomes large, a large area of the display shelf is required in order to display a large number of packages on the limited display shelf. If a large area is required for displaying the packages, problems arise such as the inability to display many products on the limited display shelf, or the inability to display other products.
[0005] In response to this, in order to display a large number of packages in as small an area as possible, packages are sometimes stacked in the vertical direction for display. However, when packages are stacked and displayed, problems arise such as the stacked packages collapsing when the packages are removed from the display shelf. Furthermore, if the smaller surface area of the package is forcibly placed on the bottom, the package cannot be placed stably, and there is a problem that it may tip over or collapse on the display shelf. These problems that arise on display shelves can also occur where the packaging is used, such as in an ordinary domestic kitchen.
[0006] Furthermore, in cases where the packaging body is made of relatively high rigidity, such as cardboard (Patent Document 4), the packaging body can be placed stably even if the smaller surface area of the packaging body is placed on the bottom. However, the plastic bags are simply stacked and stored inside the packaging body, and when the number of stored plastic bags decreases in particular, the stacked plastic bags inside the packaging body collapse, causing problems in that the bags cannot be easily removed.
[0007] The above-mentioned problems are not limited to packages that contain a large number of sheet-like plastic bags inside, but can also occur in packages that contain a large number of sheet-like items such as paper towels or paper cooking sheets that are resin-coated. Naturally, this can also occur in packages containing one or a small number of sheet-like items.
[0008] To provide a package in which a sheet-like material is wrapped in a packaging material and placed with the narrow side facing the bottom, thereby reducing the placement area and allowing the package to be placed stably even when placed with the narrow side facing the bottom, and preventing the sheet-like material stored inside the packaging material from collapsing inside. [Means for solving the problem]
[0009] In order to solve the above problems, the package of the present invention has the following configuration. A package in which one or more sheet-like objects are packaged in a packaging material, The core material has two surfaces connected by a connecting portion and is formed into a cross section that is approximately U-shaped or approximately ⊃-shaped, A package characterized in that one or more of the sheet-like materials are placed on the core material to cover the outside of the connecting portion, and both ends of the one or more sheet-like materials are folded inside the core material, and the packaged object is packaged in the packaging material. Effect of the Invention
[0010] The present invention reduces the placement area by placing a package in which sheet-like material is wrapped in packaging material with the narrower side facing the bottom, and provides a package that can be placed stably even when placed with the narrower side facing the bottom, and in which the sheet-like material stored inside does not collapse. [Brief description of the drawings]
[0011] [Figure 1] FIG. 1 is a perspective view of a food storage bag package 1 according to an embodiment of the present invention. [Diagram 2] FIG. 1 is a perspective view of a laminated folded body 4 of a food storage bag according to an embodiment of the present invention. [Diagram 3] 1A to 1C are diagrams showing a process for producing a laminated folded food storage bag 4 according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0012] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the following description, the same reference numerals in different drawings indicate parts having the same function, and duplicated descriptions in each drawing will be omitted as appropriate.
[0013] [Embodiment] Hereinafter, a package 1 will be described by taking as an example a laminated folded body 4 (packaged object) made of a large number of laminated food storage bags (bag-like objects such as polyethylene bags) for storing and preserving sheet-like objects such as food, and packaged in a packaging material 5 (bag-like packaging material such as polypropylene bags). The sheet-like object is not limited to a food storage bag, but may be a folded large resin bag such as a garbage bag, a paper bag, or a paper sheet-like object such as a paper towel or a cooking sheet, and may be any object formed of any material and formed into a sheet or folded into a sheet. The packaging material 5 may be made of polypropylene, or may be made of resin such as polyethylene or polyvinyl chloride, or may be made of paper. The packaging material 5 is not limited to a bag-like object, and may be a box-like object.
[0014] [Overall configuration] FIG. 1 is a perspective view of a food storage bag package 1 according to an embodiment of the present invention. The food storage bag package 1 is constructed by wrapping a food storage bag stack 4 made by folding a number of polyethylene food storage bags (plastic bags) folded into sheets around a core material 3 made of cardboard and shaped to have a roughly U-shaped cross section, in a packaging material 5 made of a polypropylene bag.
[0015] [Laminated folded body] FIG. 2 is a perspective view of a laminated folded body 4 of a food storage bag according to an embodiment of the present invention. The laminated folded body 4 is formed by overlapping a laminated body 2 of food storage bags, which is made up of a number of laminated food storage bags, with a core material 3, and folding the core material 3 so that its cross section has a substantially U-shaped configuration. The core material 3 is formed by folding the left and right longitudinal ends of a rectangular sheet toward the narrow central portion, forming two wide, approximately parallel facing planar portions 31 (two faces) and a connecting portion 32 connecting these two planar portions 31. The laminate 2 is placed over the core material 3 from the back of the core material 3, i.e., the outer surface of the connecting portion 32, and both longitudinal ends of the laminate 2 are folded inside the core material 3, i.e., into the space sandwiched between the two planar portions 31, and the laminate 2 is placed over the core material 3 so as to cover all of the outer and inner surfaces of the core material 3 which has been folded so as to have an approximately U-shaped cross section. The core material 3 is not limited to being bent to have a substantially U-shaped cross section, but may be bent to have a substantially ⊃-shaped cross section. The core material 3 is also not limited to cardboard, and may be any sheet-like material that has sufficient rigidity to stand on its own, such as a thick resin sheet or a highly complex resin sheet.
[0016] FIG. 3 shows the process of producing a laminated folded body 4 of a food storage bag according to an embodiment of the present invention, where (a) shows a core material 3 placed on top of the laminated body 2 of the food storage bag, (b) shows both ends of the laminated body 2 folded onto the core material 3, and (c) shows the laminated body 2 folded together with the core material 3 into an approximately U-shape. The laminated folded body 4 is produced as follows. As shown in FIG. 3(a), the laminate 2 and the core 3 of the food storage bag are overlapped with their longitudinal centers aligned. Then, the side portions 22 are folded toward the central portion 21 so that the core material 3 is sandwiched between the central portion 21 of the laminate 2 that is overlapped with the core material 3 and the side portions 22 that protrude outward from both ends in the longitudinal direction of the core material 3 of the laminate 2. The left and right ends of the laminate 2 are folded so as not to overlap the connecting portions 32 of the core material 3 but only to overlap the two flat portions. Next, as shown in Fig. 3(b), the two flat portions 31 are folded together with the laminate 2 toward the connecting portion 32 so that the cross-sectional shape of the core material 3, i.e., the shape seen from above in Fig. 3(c), becomes approximately U-shaped. At this time, it is advisable to make creases in the core material 3 beforehand. As a result, a laminated folded body 4 having a shape as shown in FIG. 3(c) is completed.
[0017] [Packaging] The laminated folded body 4 prepared as described above is placed inside a packaging material 5, which is a polypropylene bag, and sealed, thereby completing the package 1 in which the laminated folded body 4 is packaged in the packaging material 5. 1, the packaging material 5 has perforations 52 formed at locations corresponding to the connecting portions 32 for forming removal openings 51 (openings) for removing the food storage bags one by one. Note that the perforations 52 for forming the removal openings 51 are not limited to locations corresponding to the connecting portions 32, but may be formed at other locations, in a direction perpendicular to the folding direction of the laminated folded body 4 (the upper portion of the packaging material in FIG. 1), at corners of the packaging material 5, or at locations corresponding to the flat portions 31, or further at multiple locations including these locations.
[0018] [Use of packaging] When the packaging body 1 as described above is placed on a support surface, it can be placed with the surface perpendicular to the folding direction of the laminated folded body 4 (the direction of the arrow in Figures 3(a) and (b)) as the bottom surface. The laminated folded body 4 is constructed by covering the core material 3, which has been folded so as to have an approximately U-shaped cross section, from the outer surface of the connecting portion 32, and folding both longitudinal ends into the space sandwiched between the two flat portions 31, so that the entire laminated folded body 4 forms a single, unified structure with high rigidity. With this structure, the stacked folded body 4, and further the package 1 in which the stacked folded body 4 is stored in the packaging material 5, can stably maintain their position even when they are stood upright with the smaller surface facing downwards. That is, even if the packaging material 5 is soft, such as a polypropylene bag, the large rigidity of the folded laminate 4 allows it to be stably placed on the smaller surface of the bottom.
[0019] This allows the packaging body 1 to be placed in a small placement area. Furthermore, regardless of the rigidity of the packaging material 5, even if the amount of polyethylene bags remaining in the laminated folded body 4 inside the packaging material 5 becomes small, the entire laminated folded body 4 has a single, unified structure with high rigidity, so the laminated folded body 4 will not collapse inside the packaging material 5. In this way, it is preferable that the bag-shaped packaging material 5 is configured so that the surface to be used as the bottom can be formed into a flat surface having a predetermined area required for stability, so that the bag-shaped packaging material 5 can be placed stably when the smaller area is placed on the bottom. Needless to say, the packaging material 5 is not limited to having the smaller surface area as the bottom surface, and may be placed with the larger surface area as the bottom surface.
[0020] Although the embodiments of the present invention have been described in detail above with reference to the drawings, the specific configuration is not limited to these embodiments, and the present invention also includes design changes and the like that do not deviate from the gist of the present invention. [Explanation of symbols]
[0021] 1 package 2. Laminate 21 Central part 22 Lateral part 3 Core material 31 Plane part 32 Connecting part 4. Laminated foldable body 5 Packaging materials 51 Outlet 52 Perforation
Claims
1. A package in which one or more sheet-like objects are packaged in a packaging material, The core material has two surfaces connected by a connecting portion and is formed into a substantially U-shaped or ⊃-shaped cross section. A packaged body, characterized in that the packaged object is formed by covering the core material from the outside of the connecting portion with one or more of the sheet-like materials and folding both ends of the one or more sheet-like materials inside the core material, and packaging the packaged object with the packaging material.
2. 2. The package according to claim 1, wherein the sheet-like material is a bag-like material formed into a sheet-like material.
3. 3. The package according to claim 2, wherein the bag-like object is a polyethylene bag.
4. 2. The package according to claim 1, wherein the packaging material is provided with perforations at locations corresponding to the joints for forming an opening for removing the sheet-like material.
5. 5. The package according to claim 1, wherein the one or more sheet-like materials are formed by stacking a plurality of the sheet-like materials.
6. 5. The package according to claim 1, wherein the packaging material is a bag-shaped packaging material.
Citation Information
Patent Citations
JP1976045038U
JP1982162125U
JP1990087792U
Bag group wrapping body from which bags can be smoothly taken out
JP2010126253A
Dispensing carton for corrugated plastic bags
US4175673A
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