JPH08151071A - Simple package of resin sheet - Google Patents

Abstract

PURPOSE: To enable sealing the contents easily with a hand by using a semi- spherical packaging container of resin sheet. CONSTITUTION: A resin sheet is pressed to form a simple semi-spherical packaging container 1 obtained by cutting a hollow sphere with a diameter of (a) with an imaginary plane passing through the section of the maximum diameter. With the container 1 put on a palm, an article (P) is put in the container 1 by the other hand. then, the palm is closed gradually to round the container 1, and the overlapped part of the container 1 is adhered with adhesive tape by the other hand. The container 1 can keep the maximum opening area when no external force is applied to it. A number of the containers 1 can be stacked closely. The containers 1 need no large storage space when not in use.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simple packaging container made of a resin sheet, and more particularly to a simple packaging container capable of easily enclosing contents with one hand.

[0002]

2. Description of the Related Art Conventionally, a food packaging container or a daily sundries packaging container is roughly classified into a so-called envelope-shaped container in which the peripheral portions of two overlapping thin leaf pieces are continuous with a partial section left. , And a so-called three-dimensional container including a bottom surface, a side wall integrally provided around the bottom surface, and a lid attached as necessary is usually used. Various materials such as a paper material, a cloth material, a resin material, a metal material, or a combination material thereof are used as the material of the container.

[0003]

[Problems to be Solved by the Invention] In a retail store or the like that handles groceries and daily necessities as sales products, it is necessary to perform a quick product packaging operation from the viewpoint of improving service to customers. In addition, from the viewpoint of effective utilization of the sales area, it is required to reduce the area occupied by articles other than the sales target article such as packaging containers as much as possible.

The envelope-shaped container described above is generally thin, and since it is possible to stack and store a large number of sheets in a limited space, no space problem is raised, but the product is stored in the container. If you do, it is usually necessary to open the product insertion port of the container with both hands, and after inserting the product into the container with the opened container (bag) held with one hand, Again, it is necessary to use the both hands to close the opening of the container, and it cannot be said that the packaging work is quick.

On the other hand, the three-dimensional container has an open product insertion port in advance, and the product can be easily accommodated in the container by simply opening the lid with one hand as necessary.
Further, since the lid closing work with one hand is easy, the packaging work can be performed quickly. However, since a three-dimensional container requires a lot of space during its storage, it cannot always be said that it is a good idea to use this as all packaging containers. There is also one that is stored in a flat shape when not in use and is assembled into a three-dimensional shape when used as a storage container.However, considering the time required for assembly, such a container is also satisfactory. It is not a packaging container that can be used.

An object of the present invention is to obtain a container in which the above-mentioned inconveniences of existing packaging containers are solved, and more specifically, a three-dimensional container having an always-opened product insertion port. Although it is a container, it is possible to store many containers in a small space when not in use,
Moreover, it is an object of the present invention to provide a simple packaging container that can be easily closed with one hand even when the container is closed after the product is stored, and that enables a quick packaging operation.

[0007]

A simple packaging container according to the present invention for solving the above-mentioned problems and achieving the object is basically made of a resin sheet, and a hollow, substantially spherical body is cut by an imaginary plane. A simple packaging container having a shape obtained by the above, wherein the virtual plane is a virtual plane capable of taking the maximum cross-sectional area of the substantially spherical body or a virtual plane parallel to the virtual plane. .

An imaginary plane parallel to the imaginary plane may be a position between a position where the maximum cross-sectional area of the substantially spherical body can be taken and about 2/3 of the depth of the substantially spherical body. If the imaginary plane has a shape located at a position deeper than ⅔ of the depth of the substantially spherical body, it becomes difficult to encapsulate the product in the container.

Further, a flange having a predetermined width is integrally formed on an edge portion corresponding to a cutting position on the virtual plane, or an adhesive is applied to a part or all of the flange portion, and further, the edge portion. It is a more preferable embodiment of the simple packaging container according to the present invention that the notches are formed at the two most spaced positions.

As will be apparent from the following description, in the present invention, the shape of the simple packaging container is not limited to the shape obtained by cutting a hollow spherical body by an imaginary plane. It may be a hollow body having a shape in which the major axis and the minor axis have different lengths, such as a spheroid. Further, the outer surface and / or the inner surface of the container do not necessarily have to be smooth surfaces, and may have some unevenness or streaky unevenness pattern. In the present specification, the term "hollow substantially spherical body" is used as a generic term for those shapes.

In the present invention, the resin sheet comprises, as the resin species, a crystalline hydrocarbon resin such as polyethylene, polypropylene, polymethylpentene, polybutene and crystalline polybutadiene, and an amorphous resin such as polystyrene, polybutadiene and styrene butadiene resin. Hydrocarbon resin, polyvinyl chloride, polyvinyl acetate, polymethylmethacrylate, polyvinylidene chloride, polytetrafluoroethylene, ethylene polytetrafluoroethylene copolymer, ethylene vinyl acetate copolymer, AS resin, ABS resin, ionomer , Polar vinyl resins such as AAS resin and ACS resin, polyacetal, polyamide, polycarbonate,
Linear structure resin such as polyphenylene oxide, polyethylene terephthalate, polybutylene terephthalate, polyarylate, polysulfone, polyether sulfone, polyimide, polyamideimide, polyphenylene sulfide, or cellulose acetate, cellulose acetate butyrate,
A sheet made of a cellulosic or other cellulose resin or the like can be used. The sheet may be non-foamed or foamed. The foam sheet is particularly effective as a material for a packaging container for products that require heat retention or products that do not like shock. In the case of a non-foamed sheet, it may be opaque, transparent or tinted transparent. It may have an appropriate printed pattern on the surface.

The thickness of the sheet is preferably about 0.05 to 5.0 mm from the viewpoint of facilitating the packaging work with one hand, but the thickness is not necessarily limited to this, and may be appropriately selected according to the purpose of use of the container. The simple packaging container according to the present invention can be easily manufactured by using a molding device such as a conventional vacuum molding device, a pressure molding device, or a press molding device that processes and molds a resin sheet into a container shape, and the same shape can be used. At the same time, since it can be mass-produced, the manufacturing cost is low.

[0013]

Since the simple packaging container according to the present invention has the above-mentioned structure, its opening portion always maintains the maximum opening cross-sectional area in the natural state, and a large number of containers are stacked in close contact with each other. Therefore, a large space is not required for storing the container when not in use.

When used as a container, one container is taken out from a plurality of stacked containers and placed on the palm. If the outer surface and / or the inner surface of the container has unevenness or streaky unevenness pattern, this removal is particularly easy. With the other hand, hold the product to be stored and put it in the container. After loading, gradually close the palm holding the packaging container and roll the container. This rounding amount can be set arbitrarily according to the amount of the contents. As a result, the vicinity of the edge portion of the packaging container overlaps with each other, and the product put in the container is sealed in the container. In the container in which the notches are formed at the two most distant positions of the edge portion, this containment work can be performed more easily and more reliably.

Hold the adhesive tape or the rubber band with the other hand, and stick the overlapped portion with the adhesive tape or tighten the rubber band so that the rolled-up container is not opened. This completes the packaging work. In that state, the product is handed to the purchaser.

In the case where the packaging container has a flange, after the product is put in, the palm holding the packaging container is closed, and the above-mentioned procedure is performed with the flanges formed at the edge portions of the packaging container abutting each other. It may be performed. Instead of using adhesive tape or rubber bands, the joined flanges may be closed with something like a stapler, and if an adhesive is provided on the flanges, release paper may be used if necessary. It is also possible to join them by pressing the flanges together after peeling.

When a packaging container is molded from a transparent or colored transparent resin material, the contained product can be seen from the outside, so that a display effect can be exhibited, and the product can be directly displayed on the product display shelf after packaging. You can also exhibit in the form of. Furthermore, the shape of the packaging container after packaging is a rugby ball shape or an ocarina shape, and in addition to the function as a packaging container, the effect of decorating a product can be expected. Further, when the packaging container is formed of a foam sheet, it is particularly effective as a packaging container for a product requiring heat retention because the container itself has heat retaining properties.

Further, when the packaging container is unsealed, the entire container can be easily opened while maintaining the maximum opening cross-sectional area, and the state is maintained. Therefore, the contents can be taken out very easily.

[0019]

The present invention will be described in more detail based on the following examples. FIG. 1 is a perspective view showing an embodiment of a simple packaging container made of a resin sheet according to the present invention. The simple packaging container 1 in this example is a high-impact polystyrene sheet manufactured by press molding, and is obtained by cutting a hollow spherical body having a diameter a as a whole by an imaginary plane passing through the maximum cross-section position. It has a shape. The thickness of this sheet is 0.5 mm. P indicates a stapler as an example of a product placed in the simple packaging container 1.

With the simple packaging container 1 placed on the palm of one hand, the stapler P is put into the container 1 by the other hand, and the palm holding the container 1 is gradually closed after the insertion and the container 1 is rolled. As a result, the vicinity of the opposite edge portions of the container 1 are overlapped with each other, and the edge portion of the overlapped portion is adhered with the adhesive tape 2 by another hand (see FIG. 2). This state is the state where the packaging is completed. The size of the space in the packaging container can be freely adjusted by adjusting the degree of overlap.

3 and 4 show another embodiment of the simple packaging container according to the present invention. Simple packaging container 10 in this example
1 shows that a flange 11 having a width substantially equal to the peripheral edge of the edge is integrally formed, and notches 12 and 12 are provided at two positions of the edge portion that are most distant from each other. The packaging container has a different structure. This flange 1
As shown in FIG. 5, 1 can also be formed by concentrically cutting the trimming loss portion 11a that occurs when a large number of molding machines are used.

In the container 10 of this form, the notches 12 and 12 are formed when the container 10 is rolled by the palm.
Is a bent part and is rolled up, and the opposing flange 11
It stops when the parts are in collision (see Fig. 4). The container 10 of this form has the notches 12 and 12 to facilitate rounding. Further, the bent portion is less likely to be damaged, and the repeated use is further possible. Further, since the opposing flanges 11 stop in a state of abutting against each other, this is particularly effective when a packaging space having a constant volume is required. In FIG. 4, 2 is an adhesive tape for closing the abutting portion of the flange 11.
Since this container 10 has the flange 11, the flange portion may be closed by using a stapler or the like without using an adhesive tape.

6 and 7 show another embodiment of the simple packaging container according to the present invention. Also in the simple packaging container 20 in this example, the flange 21 is integrally formed at the peripheral edge portion of the edge, but in this example, the flange 21 has wide portions 22 and 22 in a part thereof, and the flange 21 Adhesive is applied to the entire surface. Although particularly illustrated, a release paper may be arranged on the adhesive.

In the container 20 of this embodiment, since the adhesive is applied to the opposing flange 21 portions,
The packaging work can be completed easily and surely simply by abutting and pressing the flange 21 portion, particularly the wide portion 22 portion without using a special means such as an adhesive tape when closing the container (see FIG. 7). ). Of course, closure means such as adhesive tape or staples can be used simultaneously if desired.

FIG. 8 shows still another embodiment of the simple packaging container according to the present invention. Simple packaging container 30 of this example
Has a locking insert piece 31 formed at a part of the peripheral edge of the edge, and a fence insertion groove 32 is formed at a position facing the insert piece 31. The reentrant piece 31 is preferably formed such that the distal end side is somewhat wider than the proximal end side as shown in the figure. Even in the simple packaging container 30 of this embodiment, by inserting and inserting the insertion piece 31 into the insertion groove 32 at the time of packaging, the packaging work can be easily performed without using other means such as an adhesive tape. Can be finished.

FIG. 9 shows still another embodiment of the simple packaging container according to the present invention. Simple packaging container 40 of this example
Is another embodiment of the packaging container having the flange 21 shown in FIG. 6, in which one of the wide portions 22, 22 is integrally formed with the locking projection 41, and the other wide portion is formed. An engagement opening 42 is formed at a portion where the locking projection 41 abuts during packaging. The locking projection 41 preferably has a spherical body on the tip side as shown in the drawing. Even in the case of the simple packaging container 40 of this embodiment, the locking projections 4 are provided at the time of packaging.
The packaging work can be easily completed simply by inserting 1 into the engagement opening 42 and locking it.

FIG. 10 shows still another embodiment of the simple packaging container according to the present invention. Simple packaging container 50 of this example
6 is still another mode of the packaging container having the flange 21 shown in FIG. 6, in which the folded portion 51 is formed at the tip of only one of the wide portions 22, 22. In the simple packaging container 50 of this embodiment, the folded portion 51 is temporarily expanded with a fingertip at the time of packaging, the other wide portion is inserted therein, and then the fingertip is released from the folded portion 51. The packaging operation can be easily completed without using other means such as an adhesive tape. It will be easily understood that in the packaging container shown in FIGS. 9 and 10, it is not always necessary to apply the adhesive to the flange portion 21.

In any of the above-mentioned containers, by unsealing the sealing means such as an adhesive tape, the entire container easily expands to its maximum opening cross-sectional area by its own repulsive force, forming a bowl shape. And the state is maintained.
Therefore, for example, as shown in FIG. 9 and FIG. 10, even when a granular food item P ₁ such as peanut is stored as shown in FIG. 9 and FIG. The contents can be easily taken out without being scattered from the inside.

The above description is for some examples of the simple packaging container made of the resin sheet according to the present invention, and there are many other modified examples. For example, a mode in which the notches 12 and 12 are provided in the container shown in FIGS. 1 and 2, and the notches 12 and 1 from the container shown in FIGS.
2 may be omitted, an adhesive may be applied to the flange 11 of the container, an adhesive may not be applied to the flange 21 of the container shown in FIGS. 6 and 7. Further, the portion where the adhesive is applied to the flange portion does not necessarily have to be the entire surface of the flange, and may be a partial adhesive. Also, a means such as a double-sided adhesive tape may be used instead of the adhesive. Further, the resin type of the resin sheet as a material is not limited, and many types can be used as described above.

The position of the virtual plane is not limited to the position at which the maximum cross-sectional area of the spherical body can be taken as in the above-mentioned embodiment, but it may be a virtual plane parallel to the virtual plane. According to the experiments conducted by the present inventors, as shown in FIG. 11, the virtual plane is located between a position where the maximum cross-sectional area of the substantially spherical body can be taken and about 2/3 of the depth of the substantially spherical body. If it does, it has been confirmed that there is no problem in using it as a packaging container.

Further, in the above embodiment, the whole shape of the container is shown as a sphere having a smooth surface, but it has a shape in which the major axis and the minor axis have different lengths such as a hollow spheroid. It has been confirmed that even a hollow body can be used as a packaging container. Further, the outer surface and / or the inner surface of the container are not necessarily required to be smooth surfaces, and may have some unevenness or streaky unevenness pattern. Further, a print pattern may be added.

[0032]

Since the simple packaging container made of the resin sheet according to the present invention has the above-mentioned structure, its opening can always maintain the maximum opening cross-sectional area in a natural state, and the containers can be kept in close contact with each other. A large number of layers can be stacked, and a three-dimensional container does not require a large space for storing the container when not in use. When used as a container, one container can be taken out of a plurality of stacked containers, placed on the palm of the container, put the product in the container, and then the palm holding the packaging container can be closed to facilitate the container. Can be closed and the packaging operation can be done very quickly with one hand.

Further, when the packaging container is molded from a transparent or colored transparent resin material, the stored product can be seen from the outside, and the product may be displayed in its original shape on the product display shelf after packaging. it can. In the case of molding with a foam sheet, it can be used as a simple heat insulating container. Further, by opening the packaging container, the container can be easily expanded to the original shape and the state is maintained. Therefore, the contents can be taken out very easily.

[Brief description of drawings]

FIG. 1 is a perspective view showing an open state of a simple packaging container according to the present invention.

FIG. 2 is a perspective view showing a packaging end state of the container shown in FIG.

FIG. 3 is a perspective view showing an open state of a simple packaging container according to another embodiment.

FIG. 4 is a perspective view showing a packaging completed state of the container shown in FIG.

FIG. 5 is a view showing an example of a forming sheet in the case of forming the simple packaging container of the present invention by taking a large number of pieces.

FIG. 6 is a perspective view showing an open state of a simple packaging container according to still another embodiment.

FIG. 7 is a perspective view showing a packaging end state of the container shown in FIG.

FIG. 8 is a perspective view showing an open state of a simple packaging container according to still another embodiment.

FIG. 9 is a perspective view showing an open state of a simple packaging container according to still another embodiment.

FIG. 10 is a sectional view showing an open state of a simple packaging container according to still another embodiment.

FIG. 11 is a diagram illustrating a possible position of a virtual plane.

[Explanation of symbols]

1 ... Simple packaging container made of resin sheet, 2 ... Adhesive tape, P ... Packaged product

Claims (4)

[Claims] 1. A simple packaging container made of a resin sheet and having a shape obtained by cutting a hollow substantially spherical body along a virtual plane, wherein the virtual plane has a maximum cross-sectional area of the substantially spherical body. A simple packaging container characterized by being a virtual plane that can take any of the following or a virtual plane parallel to the virtual plane. 2. The simple packaging container according to claim 1, wherein a flange having a predetermined width is integrally formed at an edge portion corresponding to a cutting position on the virtual plane. 3. The simple packaging container according to claim 2, wherein an adhesive is applied to a part or all of the flange portion. 4. The simple packaging container according to any one of claims 1 to 3, wherein notches are provided at two positions of the edge portion that are most distant from each other.