JPH0447054Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention uses a so-called single-sided corrugated sheet material made by laminating a corrugated sheet and a back liner, and is particularly suitable for packaging paper containers based on a rolled structure. It is related to the structure of

[Prior art and its problems] As is well known, conventional packaging paper containers use plain paper sheet materials with the intention of reducing weight, and double-sided corrugated sheet materials or laminated structures with the intention of increasing rigidity and strength. They are provided as structures based on conventional paper carton forming techniques, namely folding structures and folding structures, respectively. These conventional paper containers are one-dimensional in their purpose, do not have comparable functions, and are designed with emphasis on functionality and lack visual interest. It was hot.

[Purpose of the invention] Therefore, this invention is based on an extremely novel technical idea that goes beyond the traditional technical idea (structure based on folding and folding) of conventional packaging paper containers, namely packaging based on a rolled structure. Our purpose is to provide paper containers.

Furthermore, this invention aims to provide a paper carton container that has a simple structure and is suitable for mass production, a paper carton container that is lightweight, rigid and strong, and a paper carton container that has excellent visual interest.

[Means for Solving the Problem] In order to achieve the above-mentioned object, this invention specifically provides a back liner on one side of a corrugated sheet that is regularly corrugated in a predetermined direction. at least a pair of end wall forming bodies made of bonded single-sided corrugated sheet materials, the single-sided corrugated sheet materials being wound such that the corrugated sheets extend along the axial direction; A peripheral wall forming body that holds end wall forming bodies coaxially at a predetermined interval and is wound around the outer periphery of the end wall forming body so that the corrugated lines of the corrugated sheet extend along the axial direction. This is a packaging paper container using a single-sided corrugated cardboard sheet material, which is formed by partially cutting out a part of the circumferential surface of the circumferential wall forming body to form an opening for entering and exiting the contents.

[Description of Examples] Hereinafter, the packaging paper container using the single-sided corrugated sheet material of this invention will be described based on specific examples shown in the drawings.

The wrapping paper container of this invention is based on a rolled structure, and in order to fully satisfy the above objectives, single-sided corrugated sheet material is very effectively applied. That is,
The single-sided corrugated sheet material is relatively lightweight, is extremely easy to wind in one direction, is rigid and strong in the direction that intersects the corrugated ridge lines of the corrugated sheet, and is particularly strong in the axial direction when wound. Many ribs are formed along the sheet, which further enhances rigidity and toughness, and the exposed corrugated sheet surface allows for innovative designs.

FIGS. 1 and 2 show two different preferred embodiments of the paper packaging container according to this invention. The packaging paper container 1 shown in FIG. 1 is formed from a single-sided corrugated cardboard sheet material 2 cut into the shape shown in FIG. 3, for example. As shown in FIG. 5, the single-sided corrugated sheet material 2 is made up of a regularly corrugated sheet 2A and a back liner 2B bonded to one side of the corrugated sheet 2A. The single-sided corrugated cardboard sheet material 2 has portions 3a, 3a forming a pair of end wall forming pairs 3, 3, and a portion 4a forming a peripheral wall forming body 4. As shown by the imaginary line (two-dot chain line) in FIGS. 1 and 3, in this embodiment, in order to provide an intermediate wall structure 5 at an axially intermediate position for the purpose of partitioning and reinforcing, the single-sided corrugated sheet material 2 can be provided with a portion 5a forming an intermediate wall formation. The end wall forming bodies 3, 3, the peripheral wall forming body 4 and the intermediate wall forming body 5
may be formed integrally with the single-sided corrugated sheet material 2, as shown in FIG. It may be something that forms. In the latter case, the peripheral wall forming body 4 may be a plain paper sheet having appropriate rigidity. After winding, the end wall forming bodies 3, 3 and the intermediate wall forming body 5 are fixed by appropriate means such as adhesive so as not to unwind. The end wall forming body 3
Different embodiments are shown in schematic cross-sectional views in FIG. 4. The end wall forming body 3A shown in FIG. 4A is obtained by winding a single-sided corrugated cardboard sheet band of the same width from the winding start end 6 to the winding end 7 without displacing it in the axial direction during the winding process. The end wall forming body 3B shown in B is obtained by winding a single-sided corrugated cardboard sheet band having the same width as above while displacing it in the axial direction during the winding process. The end wall forming body 3C shown in FIG. 4C is made by winding a single-sided corrugated cardboard sheet band that gradually becomes wider from the winding start end 6 to the winding end 7, and the end wall forming body 3D shown in FIG. 4D
is made up of a wound single-sided corrugated cardboard sheet band whose width gradually narrows from the winding start end 6 to the winding end 7. End wall forming body 3E shown in FIG. 4E
is a primary winding body 8, a secondary winding body 9 wound around the outer periphery of the primary winding body 8 with displacement in the axial direction, for example;
and a tertiary winding 10 similarly wound around the outer peripheral surface of the secondary winding 9. In this case, for the single-sided corrugated cardboard sheet bands constituting each roll 8, 9, and 10, different aspects such as band width, color, and wave pitch of the corrugated sheet can be selectively combined. The end wall forming body 3F shown in FIG.
1, and a single-sided corrugated cardboard sheet band is wound around the winding core 11. In this embodiment, the winding core 11 may be either a solid core or a pipe core, and
Furthermore, its cross-sectional shape is not limited to circular,
It can be designed to have an appropriate shape such as an ellipse, a triangle, a square, a hexagon, or the like. The winding core 11
can also be removed after winding a single-sided corrugated cardboard sheet.

On the other hand, in this invention, the peripheral wall forming body 4
The end wall forming bodies 3, 3 are arranged so that the end wall forming bodies 3, 3 are coaxially held at a predetermined interval.
is fixed to the outer circumferential surface of the When the peripheral wall forming body 4 is fixed to the end wall forming bodies 3, 3, a part of the circumferential surface is partially cut out to form an opening 12 for entering and exiting the stored items.

Furthermore, this invention provides the above-mentioned object entrance/exit opening 12.
It is additionally provided with a lid body 13 for closing. In the embodiment shown in FIG. 1, the lid body 13 is formed directly on the end of the winding of the peripheral wall forming body 4, and closes the stored material inlet/outlet opening 12 by winding, and is properly engaged. It is adapted to be fixed by stop means 14 and 15. The lid 13 may be a plain paper sheet material depending on the peripheral wall forming body 4.

On the other hand, the embodiment shown in FIG. 2 is composed of a container 16 formed similarly to the above structure and a lid 17 separated from the container 16. The lid body 17
is a cylindrical body formed by winding at least one layer of not only a single-sided corrugated sheet material but also a sheet material having appropriate rigidity, and is inserted into the container 16 in the axial direction to open the contents entrance/exit opening. 12 is configured to close.

[Effects of the invention] The packaging paper container using the single-sided corrugated sheet material invented with the above structure is relatively lightweight, rigid and strong, and has a rolling structure based on the easy-to-roll single-sided corrugated sheet material. It is provided as a packaging paper container for various purposes, and has many advantages such as being lightweight, rigid and strong, having a simple structure and suitable for mass production, and having excellent visual interest and changeability. It has the following characteristics, and can be said to be extremely effective in these respects.

[Brief explanation of the drawing]

Fig. 1 is a schematic perspective view showing one specific example of a packaging paper container using a single-sided corrugated sheet material of this invention, Fig. 2 is a schematic perspective view showing another specific example, and Fig. 3 1 is a developed plan view of the packaging paper container according to the embodiment shown in FIG. The cross-sectional view, FIG. 5, is a schematic cross-sectional view of a single-sided corrugated sheet material. 1... Packaging paper container container, 2... Single-sided corrugated sheet material, 3... End wall forming body, 4... Peripheral wall forming body,
5...Intermediate wall forming body, 12...Accommodated object entrance/exit opening,
13...lid body, 16...container, 17...lid body.

Claims (1)

[Claims for Utility Model Registration] A single-sided corrugated cardboard sheet material in which a back liner is pasted on one side of a corrugated sheet that is regularly corrugated in a predetermined direction, the corrugated sheet's wavy line runs along the axial direction. It consists of at least a pair of end wall forming bodies wound so as to extend, and a circumferential wall forming body coaxially holding the pair of end wall forming bodies at a predetermined interval, the circumference of the circumferential wall forming body being A packaging paper container using a single-sided corrugated cardboard sheet material, characterized in that a part of the surface is partially removed to form an opening for entering and exiting the stored items.