JPH09216661A - Package - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent stuffs from being mixed with each other and prevent a liquid added to the stuff from sticking to other stuff, in case of storing a plurality of the stuffs into a package. SOLUTION: An inner-container main body 20 with a recess made by deep drawing is inserted into the top opening of an outer-container main body 10 with a recess made by deep drawing. In both the container main bodies, their faces are in contact with each other all round in the form of ribs 11 and 21 made at their upper ends. Further, the rib 21 of the inner-container main body is in contact with the peripheral edge 31 of the film 30 all round. Both the container main bodies and film are heat-sealed with each other at the superimposed peripheral edges, so that they are tightly closed. Thus, because a tightly closed space can be obtained in each of the container main bodies, a stuff and liquid oozing out from it, stored in each container main body, are prevented from being moved to stuff in the other one.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a package, and more particularly, to a package for storing a plurality of types of articles.

[0002]

2. Description of the Related Art Lunch boxes and other food items are sold at convenience stores and supermarkets. Then, the sales form is performed in a state where a rice or a side dish is arranged at an appropriate position in a predetermined container body, and a lid or a film is attached to the upper portion of the container body to seal it. When a film is used, the peripheral edge of the upper end of the container and the contact point of the film are heat-sealed so as to be in close contact with each other.

[0003] The contents in the package include not only a lunch box in which rice and side dishes are put together, but also rice alone or side dishes (including side dishes).

Further, when a plurality of kinds of foodstuffs are stored in one container body, a protrusion is formed on the bottom surface of the container body so as not to mix with each other, and the protrusion is used as a partition wall. Each of them is housed in each space formed by the partition wall.

[0005]

However, the above-mentioned conventional package has the following problems. That is, the partition wall is formed by raising the bottom surface of the container by integral formation. Then, there is a certain gap between the upper end of the partition wall and the lid or film attached to the container. Therefore, for example, if the package is tilted, or is erected or inverted for some reason, the contents (articles) may move through the gap, and different types of food items may be mixed. There is.

Further, even if the articles are not moved, for example, meat juice of meat, oil of fried food, etc. are liquids, so that even if the package is slightly tilted, it moves over the partition wall. Therefore, for example, there is a problem that the oil is soaked with oil or gravy, the flavor is deteriorated, and when oil such as sliced cabbage and vegetables, salads, etc. is applied, the crispy texture is lost.

Further, in the conventional bento etc., each food material is arranged in a plane. Therefore, when the volume is increased, the planar shape of the package naturally increases. On the other hand, a person who purchases such a lunch box or the like often heats it with a microwave oven placed at the shop where the lunch box or the like is brought back (at home or the like). Then, in the case of a package having a large planar shape as described above, it cannot be placed in a small microwave oven, or even if it can be placed temporarily, it becomes larger than the diameter of the turntable, and the turntable cannot be driven to rotate. .

In order to solve such a problem, there is also a type in which side dishes are directly placed on the rice to prevent the planar shape from increasing, but the problem that the gravy or oil permeates the rice as described above. It is not preferable because it has

The present invention has been made in view of the above background, and an object of the present invention is to solve the above problems and to mix a plurality of articles in a package when the articles are mixed with each other. The purpose of the present invention is to provide a package in which the liquid accompanying one article does not adhere to the side of another article.

[0010]

In order to achieve the above-mentioned object, in a package according to the present invention, an outer container body having an upper opening and an inner container having an upper opening accommodated inside the outer container body. A container body is provided, and the upper end portion of the outer container body (corresponding to “rib” in the embodiment) and the upper end portion of the inner container body (corresponding to “rib” in the embodiment) are located on substantially the same plane. At the same time, both upper ends are directly or indirectly adhered to the same film to seal the outer container body and the inner container body, respectively (claim 1).

In the above structure, a plurality of inner container bodies may be provided. When the number of the inner container bodies is plural (for example, two), the inner containers may be overlapped with each other (the other inner container body is housed inside one inner container body), Alternatively, the inner container bodies may be separated from each other. Then, in any of the configurations, three independent spaces are formed. Further, the adhesion in the present invention may be heat sealing or may be one using various adhesives such as hot melt.

The relative positional relationship between the outer container body and the inner container body is, for example, as defined in claim 2, the entire circumference of the upper end portion of the outer container body and the entire circumference of the upper end portion of the inner container body. Can be overlapped (corresponding to the first embodiment).

As another configuration, as defined in claim 3, a part of the upper end portion of the outer container body and a part of the upper end portion of the inner container body are overlapped with each other, and The portion may be directly adhered to the film (corresponding to the second embodiment).

Further, as defined in claim 4, the upper end portion of the outer container body and the upper end portion of the inner container body are brought into non-contact with each other, and both upper end portions are directly bonded to the film, respectively. Alternatively (corresponding to the third embodiment).

With the above construction, each container body is
Spaces that are independent of each other are formed, and each space is sealed, so that not only the articles contained in each container body, but also the liquid or the like flowing out from the article does not move to the other container body. . Therefore, the article stored in each container body can hold the initial state.

In any of the above-mentioned configurations, at least one of the outer container body and the inner container body may be filled with vacuum or a predetermined gas (claim 5).

As a structure corresponding to the fifth aspect, specifically, the insides of all the container bodies can be evacuated or the insides of all the container bodies can be filled with the same gas. Further, it also includes one in which one is left as air and the other is vacuum or gas filled. Further, various configurations can be adopted, such as filling the inside of each container main body with different gas, or as described in claim 6 in which one is evacuated and the other is filled with a predetermined gas.

In this way, when the article is food,
Can be stored for a long time. Moreover, since the space of each container body is sealed independently, it is possible to create different atmospheres in each container body, making it suitable for the type of food to be stored and further extending the storage period. Become.

More preferably, the upper end portion of the outer container body and the upper end portion of the inner container body are overlapped with each other, and a seal in a region where the film is overlapped is formed between the upper end portions of both container body parts. Than adhesive strength
It is to increase the adhesive strength between the inner container body and the film (claim 7).

With such a structure, even when the upper end portions of the outer container body and the inner container body are bonded at the overlapped portions, the outer container body is always opened. As a result, the inner container body can also be easily opened by simply grasping and lifting the end portion of the film.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a first package of the present invention.
The embodiment of is shown. As shown in the figure, the inner container body 20 formed into a concave shape by deep drawing is inserted into the upper opening side of the outer container body 10 formed into a concave shape by deep drawing. Outer container body 10 and inner container body 20
The ribs 11 and 2 projecting to the outer periphery, respectively, at their upper ends.
One. Both ribs 11 and 21 are formed in substantially the same shape and are in surface contact over the entire circumference. That is, the upper end openings of both container bodies 10 and 20 have the same planar shape and are located on substantially the same plane. Further, since the upper end openings of both container bodies 10 and 20 are made substantially the same, the upper part of the outer container body 10 is easily closed by the inner container body 20.

Further, the rib 21 of the inner container body 20 is
The entire circumference is in contact with the outer peripheral edge 31 of the film 30.
And both of these container bodies 10 and 20 and the film 3
The 0s are heat sealed and sealed to each other at the polymerized outer perimeter. That is, the two container bodies 10 and 20 are fused and integrated at the contact surface A of the ribs 11 and 21. Further, the ribs 21 of the inner container body 20 and the contact surface B of the film 30 are melted and integrated. Therefore, the inner container body 20 and the film 30 are directly heat-sealed over the entire circumference thereof, and the outer container body 10 and the film 30 are indirectly heat-sealed over the entire circumference thereof via the ribs 21 of the inner container body 20. Will be done. Further, the adhesive strength between the contact surfaces A and B is weaker than that of the contact surface A.

As described above, since both container bodies 10 and 20 are directly or indirectly heat-sealed to the film 30 to be mutually sealed, the spaces 12 and 22 independent from each other are provided.
Is formed. Therefore, when different articles 40a and 40b are stored in the two spaces 12 and 22, respectively, even if the packaging body is tilted or shaken during transportation, display, and after taking-out after purchase, the articles 40a and 40b are stored. Does not fall into the other party's space.

As an example of the articles to be stored, the cabbage is shredded in the space 12 of the outer container body 10.
There is a food 40a such as a vegetable salad and the like, and a food 40b such as ham, pork cutlet, fried food and the like that easily stains oil 40b etc. in the space 22 of the inner container body 20.

In the case of such a combination, even if gravy or oil stains the food 40a, it will only collect on the bottom surface of the outer container body 10, and even if the top and bottom of the package are reversed, It does not enter the space 22. Therefore, the oil or the like does not come into contact with the food 40b, the cabbage, vegetables, or the like do not change, and the crispy texture can be maintained.

When opening, when the end of the film 30 is grasped and lifted upward, the seal portion is peeled off and opened, as in the case of opening a normal deep-drawing type container. At this time, in this example, the adhesive strength of the contact surface A between the container bodies 10 and 20 is made smaller, so that the outer container body 10 is first opened. At this time, the inner container body 2
0 and the film 30 remain heat sealed. Then, after that, the inner container body 20 is opened again by gripping the end portion of the film 30 and lifting it upward.

Further, since the inside of the package is hermetically sealed as described above, the spaces 12 and 22 can be evacuated by sealing in the vacuum chamber. Alternatively, gas replacement may be performed and a predetermined gas (for example, an inert gas such as nitrogen) may be filled. In this way, the food can be stored for a long period of time.

Further, in the present invention, the two spaces 12, 2 are
Since two can exist independently, each space 12,
The atmosphere in 22 can be made different. That is, one may be evacuated and the other may be filled with a predetermined gas.
In this way, for example, when paying attention to foods, it is generally possible to store them for a long period of time by vacuum packaging, but for various reasons, it is better to perform gas replacement without vacuuming. In this case, the shelf life is extended by selecting the state of the atmosphere according to the food stored in each container body. Further, depending on the type of food, there is no problem even in air, so in such a case, long-term storage can be ensured even if one is vacuumed and filled with a predetermined gas and the other is left as air.

It should be noted that the specific names of the above-mentioned foods are merely examples, and the application examples of the present invention are not limited to this combination. For example, by using one rice as a side dish and the other as a side dish, the flat area can be reduced. It is also possible to increase the contents without increasing and to be able to heat even a small microwave oven. Further, it is not limited to foods and can be used for various things.

FIG. 2 shows a second embodiment of the present invention. In this embodiment, the inner container body 20 is housed inside the outer container body 10 and the opening portions of both container bodies are provided with the film 30 in the same manner as in the first embodiment described above.
It is covered with and is hermetically sealed. Here, in the present embodiment, a part 2 of the rib formed on the upper end of the inner container body 20.
This is different from the first embodiment in that 1a is overlapped with the rib 11 of the outer container body 10.

Due to this structure, the rib 21 of the outer container body 10 and the end portion 31 of the film 30 are superposed on each other at the portion 21a, as in the first embodiment. Although heat-sealed in the state, the remaining three side portions 21b of the rib of the inner container body 20 are heat-sealed only with the film 30. The remaining three sides of the outer container body 10 are also directly heat-sealed with the film 30.

With this configuration, for example, when opening the package,
When the outer container body 10 and the film 30 are opened directly from the portion C where they are heat-sealed, each of them can be opened first from the outer container body 10 side. Therefore, the adhesive strength between the two container bodies 10 and 20 and the adhesive strength between the inner container body 20 and the film 30 need not be changed (of course they may be changed).

Since the other constructions and effects are similar to those of the first embodiment, detailed description thereof will be omitted. In addition, it goes without saying that the present embodiment can be similarly applied to the modification described in the first embodiment. Further, in the above-described example, one side 21a of the rib of the inner container body 20 and the outer container body 10
However, the present invention is not limited to this. For example, as shown in FIG. 3, three sides of the rib of the inner container body 20 and the ribs of the outer container body 10 are overlapped. You may do it (the overlapping part is 2
1a). Further, although not shown in the figure, it is of course possible to overlap with two predetermined sides.

FIG. 4 shows a third embodiment of the packaging body according to the present invention. As shown in the figure, in the present embodiment, the ribs 11 and 21 formed on the upper ends of the outer container body 10 and the inner container body 20 are heat-sealed directly on the film 30 over the entire circumference without overlapping. It is glued. With such a configuration, the outer container body 10 can be opened first regardless of which part of the end portion of the film 30 is opened. Note that, since the other configurations and operational effects are the same as those of the above-described respective embodiments and modified examples, detailed description thereof will be omitted.

[0035]

As described above, in the packaging body according to the present invention, since each container main body forms an independent closed space, when storing a plurality of articles in the packaging body, the inside of each container main body is stored. By storing the articles, it is possible to prevent the articles from being mixed with each other and the liquid accompanying one article from adhering to another article side. As a result, in the case of storing food items such as a lunch box, the texture of each can be maintained. Further, by stacking in multiple stages, the plane area can be suppressed as much as possible while increasing the amount of contents.

Further, since the plurality of container bodies are closed with the same film, the amount of film material used can be reduced. Furthermore, since the inner container body is also bonded to the same film as the outer container body, the relative positional relationship between the inner container body and the outer container body is fixed, and the inner container body does not move freely within the package. Therefore, by appropriately setting the height of the article housed in the outer container body, it is possible to prevent the article from coming into contact with the bottom surface of the inner container body. Along with this, not only is it hygienic, but when the package is opened and the inner container body is taken out, the inner container body can be placed on a table or the like (even if it is placed, the table will not become dirty). .

[Brief description of drawings]

FIG. 1 is a diagram showing a first embodiment of a package according to the present invention.

FIG. 2 is a diagram showing a second embodiment of the packaging body according to the present invention.

FIG. 3 is a diagram showing a modified example of the second embodiment of the packaging body according to the present invention.

FIG. 4 is a diagram showing a third embodiment of the packaging body according to the present invention.

[Explanation of symbols]

 10 Outer Container Main Body 11 Rib 20 Inner Container Main Body 21 Rib 30 Film

Claims (7)

[Claims] 1. An outer container body having an upper opening, and an inner container body having an upper opening accommodated inside the outer container body, the upper end portion of the outer container body and the upper end portion of the inner container body. Is located substantially on the same plane, and both upper end portions are directly or indirectly adhered to the same film to seal the outer container body and the inner container body, respectively. 2. The package according to claim 1, wherein the entire circumference of the upper end of the outer container body and the entire circumference of the upper end of the inner container body are overlapped with each other. 3. A part of an upper end portion of the outer container body and a part of an upper end portion of the inner container body are overlapped with each other, and the other portions of the both upper end parts are directly adhered to the film. The package according to claim 1, which is characterized in that. 4. The upper end portion of the outer container body and the upper end portion of the inner container body are brought into non-contact with each other, and the both upper end portions are directly adhered to the film, respectively. 1. The package according to 1. 5. The inside of at least one of the outer container body and the inner container body is filled with vacuum or a predetermined gas, according to any one of claims 1 to 4. Packaging. 6. The package according to claim 1, wherein one of the outer container body and the inner container body is evacuated and the other is filled with a predetermined gas. 7. The seal in the region where the upper end of the outer container body and the upper end of the inner container body are overlapped with each other and the film is overlapped on the upper part of the outer container body has a bonding strength between the upper end parts of both container bodies. The packaging body according to any one of claims 1 to 6, characterized in that the adhesive strength between the inner container body and the film is stronger than that.