JP2554966Y2 - Food cardboard containers - Google Patents

Description

[Detailed description of the invention]

[0001]

[Industrial application field] This invention is a cardboard container made of cardboard made of cardboard for distinguishing "side dishes" and "rice" in lunch boxes sold at supermarkets and stations, and used as a lunch box. It is related to.

[0002]

2. Description of the Related Art Conventionally, containers made of aluminum foil are generally used as food containers such as "side dishes" to be put in a lunch box sold at supermarkets and stations. Further, the inventor of the present invention has provided a mutually continuous connecting portion on the side of the adjacent inner side wall and the inner side wall, and formed a connecting portion from three or more fold curves formed at predetermined intervals in this connecting portion. Has already filed a cardboard container for food that has been bent outward (Jpn.
-78410).

[0003]

[Problems to be Solved by the Invention] In the former conventional aluminum foil container for foods, there is a problem that foods such as hot boiled foods and rice cool relatively quickly because of good thermal conductivity. There is a problem that a lunch box containing an aluminum foil container cannot be directly heated in a microwave oven when eating because the container is made of metal aluminum foil. And if there is a non-burnable aluminum foil container in the lunch box after use, it is necessary to separate the non-burnable garbage from the burning garbage, and the burning garbage may be incinerated, but the aluminum foil container is incinerated. There was a problem that it could not be disposed of. Further, in the latter case (Japanese Utility Model Application No. 4-78410), there is a problem in that it is difficult to form the food cardboard container from cardboard because it is necessary to fold the cardboard container from at least three folding curves. .

[0004] This invention solves these problems of the conventional food container, and makes it easier to mold the cardboard container for food from cardboard, to keep warm food from cooling, and to put it in a container. The purpose is to be able to heat food in a microwave oven as it is, to prevent liquids such as food broth from flowing out of the container, to eat food deliciously, and to incinerate the container after use as burning garbage. It is.

[0005]

The food cardboard container of the present invention is provided with a double side wall inclined to be continuous with the bottom wall of the waterproof cardboard, and an inner side wall adjacent to the inner side wall of the double side wall. Are continuously connected to each other by a closing piece and a synthetic resin film on the side, and a continuous connecting piece is provided on the side of the outer side wall, and the connecting piece is adhered to each of the adjacent outer side walls to form a corner of the double side wall. Is a cardboard container for food in which is doubled.

[0006]

In the cardboard container for food, the inner side wall and the adjacent inner side wall are laterally connected to each other with a cardboard closing piece and a soft synthetic resin film, so that one soft synthetic resin film can be easily bent. The cardboard container for food is easy to mold when it is molded from cardboard. The cardboard container for food has a double side wall with a predetermined space, and the corner has a double piece with a closed piece, a synthetic resin film and a connecting piece. As a result, it becomes difficult to cool the food by putting warm food in the container. Then, since a metal such as aluminum foil is not used for the container, the container containing the food or the lunch containing the container containing the food can be heated by a microwave oven. And since the corners of the double side walls are doubled and the cardboard container is waterproofed, liquids such as delicious juice of food do not flow out, and the surroundings of the container are not stained, and food is eaten with delicious juice. Can be Further, the cardboard container is incinerated with the lunch box after use.

[0007]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a food cardboard container according to the present invention. A bottom wall 1 made of a cardboard made of a synthetic resin film, for example, a polypropylene film laminated on one side and waterproofed, is provided in a square shape, and the inner side wall 2 of the cardboard waterproofed is connected to the bottom wall 1 in the front-rear direction and the left-right direction. It is provided inclining in each of the four directions.
An upper wall 3 connected to the upper end of the inner side wall 2 is provided in each of four directions, and a space 5 of about 5 mm is formed between the outer side wall 4 of the thick paper connected to the upper wall 3 and the inner side wall 2. It is provided inclining in each of four directions so as to have. A triangular cardboard closing piece 6 is provided on one side of the inner side wall 2 adjacent to the inner side wall 2 and an opening between the closing piece 6 and the other opposing inner side wall 2 is provided. 7 are bonded to each other with a triangular polypropylene film 8 slightly larger than the opening 7 so as to be closed from the back side, and the closing piece 6 and the polypropylene film 8 are bent outward. On both sides of the outer side wall 4 opposed in the front-rear direction, there are provided connecting pieces 9 of thick paper continuous with the outer side wall 4, and the connecting piece 9 attaches an adhesive 10 to each of the outer side walls 4 adjacent thereto.
Adhere with. Further, continuous adhesive strips 11 made of cardboard are provided at the lower end of the outer side wall 4, and the adhesive strip 11 is attached to the bottom wall 1.
Is a cardboard container 13 for food, which is adhered to the back surface with an adhesive 12.

When the food cardboard container 13 of this embodiment is actually manufactured, as shown in FIG. 5, a synthetic resin film is laminated on the front or back of the cardboard and waterproof paper is subjected to a folding curve (chain line). ) Is provided in advance at the place to be bent, and an adhesive (indicated by dots) is applied in advance to one of the places to be bonded, and the part to be bent and bonded along this bending curve is bonded. Cardboard container 13 by bonding with
Can be easily formed. In particular, a triangular closing piece 6 continuous to one side of the inner side wall 2 and the inner side wall 2
Is not continuous with both adjacent inner side walls 2, but is continuous with one inner side wall 2, and has an opening 7 between the closing piece 6 and the other inner side wall 2. Is closed by the film 8, so that when the cardboard container 13 is formed, the cardboard closing piece 6 is smoothly bent to the outside of the adjacent inner side wall 2 at the corner of the inner side wall 2 and the closing piece 6 is When folded to the outside of the side wall 2, the film 8 is pulled by the closing piece 6 and smoothly bent to the outside of the inner side wall 2, so that the cardboard container 13 can be formed smoothly.

When the food cardboard container 13 of this embodiment is actually used, the food, for example, boiled stew is put into the container 13 and the container 13 is stored in a cardboard lunch box or used as a lunch box as it is. use. When the boiled food is put, the container 13 housed in the lunch box has double side walls and the four corners are doubled with the closing piece 6 and the connecting piece 9 so that the warm boiled food and the broth are cooled during storage. Because it is difficult, you can eat relatively warm boiled foods with the broth. When the eater buys a cold lunch at a supermarket or a train station and eats it, the lunch box with the container 13 stored therein or the container 13 taken out from the lunch box or the container 13 as a lunch box is placed in a microwave oven at a supermarket or house. Heat the food in and eat the warm food. And since the four corners of the double side wall are doubled, the food can be eaten deliciously with the liquid such as the delicious broth and oil without the liquid such as the delicious broth and oil of the food flowing out. No contamination with liquids. After use, the container 13 is incinerated as burning waste together with burning waste such as a cardboard lunch box. Although the food cardboard container 13 of this embodiment is described with the connecting pieces 9 provided on both sides of the outer side wall 4 opposed in the front-rear direction, the connecting pieces are formed on both sides of the outer side wall opposed in the left-right direction. The connecting pieces may be provided one by one on each side of the four outer side walls, for example, clockwise. The adhesive may be provided on both sides of the adhesive, and the bottom wall may be rectangular, triangular, hexagonal or more, instead of square. Further, as the thick paper subjected to the waterproof processing, a thick paper coated with a molten synthetic resin may be used.

The cardboard container for food shown in FIGS. 7 to 9 is another embodiment, which differs from the above embodiment in that the bottom wall of the cardboard 21 is closer to the triangular closing piece 22 and the cardboard 21 is closer to the bottom wall. Is 3
A synthetic resin film 24 cut into a shape that also covers the opening 23 of the cardboard 21 is adhered to the front side of the cardboard 21 cut into a predetermined shape so as to have the rectangular opening 23, and the ordinary cardboard 21 is waterproofed. Opening 2 of cardboard 21
3 is a cardboard container 25 for food in which the film 3 is closed by a film 24. In the food cardboard container 25 of this other embodiment, since one continuous film 24 appears on the front side such as the inner wall, the upper wall, and the outer side wall from the bottom wall, the appearance of the food cardboard container 25 is good, and the food cardboard container 25 has good appearance. It is possible to completely prevent the liquid such as the broth or oil from leaking from the cardboard container 25.

The cardboard container for food shown in FIG. 10 is a still another embodiment, which is a synthetic resin film 26 cut into a shape covering the bottom wall, inner side wall and opening of the cardboard shown in FIG. The film 26 is adhered to the bottom wall and the inner side wall of the cardboard to waterproof this portion, and the opening of the cardboard is closed by the film 26 to be used as a cardboard container for food.

[0012]

In the cardboard container for food of the present invention, the closing piece is continuous with one of the inner side walls and an opening is provided in the other of the closing pieces, and the opening is closed with a film. When the cardboard container is formed, the cardboard closing piece is smoothly bent and the film is pulled by the closing piece and is smoothly bent, so that the cardboard container can be formed smoothly from the cardboard. In addition, since it is a waterproofed container, and the side walls are doubled and the corners are doubled, putting hot food in the container can prevent the food from cooling, so you can eat hot food. In addition, since a metal such as aluminum foil is not used for the container, a container containing food or a lunch box containing a container containing food can be heated with a microwave oven. And since the corners of the double side walls are doubled, it is possible to prevent liquids such as delicious juice of food from flowing out of the container,
Since the liquid such as the delicious juice of the food does not flow out of the container, the periphery of the container is not contaminated with the liquid, and the food can be eaten with the liquid such as the delicious juice. After use, the cardboard container can be incinerated as burning waste.

[Brief description of the drawings]

FIG. 1 is a plan view of a product of the present invention.

FIG. 2 is a front view of the same.

FIG. 3 is a bottom view of the same.

FIG. 4 is a sectional view taken along line AA of FIG. 1;

FIG. 5 is a development view of the product of the present invention.

FIG. 6 is an enlarged sectional view taken along line BB of FIG. 5;

FIG. 7 is a development view of another product of the present invention.

FIG. 8 is a plan view of cardboard before another product of the present invention is bonded.

FIG. 9 is a plan view of a film before bonding another product of the present invention.

FIG. 10 is a plan view of still another film of the present invention before bonding.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bottom wall 2 Inner side wall 3 Upper wall 4 Outer side wall 5 Space 6 Closing piece 7 Opening 8 Film 9 Connecting piece 10 Adhesive 11 Adhesive piece 12 Adhesive 13 Cardboard container 21 Cardboard 22 Closed piece 23 Opening 24 Film 25 Cardboard Container 26 film

Claims (8)

(57) [Scope of request for utility model registration] An inner side wall of a cardboard, which has been waterproofed and is continuously provided on a bottom wall of a cardboard which has been subjected to a waterproofing process with a polygon, is provided at an angle, and an upper wall of a horizontal cardboard is provided which is continuous with an upper end of the inner side wall. An outer side wall of the cardboard is provided to be inclined parallel to the inner side wall so as to have a predetermined space between the inner side wall and the inner side wall. A continuous cardboard closing piece is provided on each side, and the opening of the closing piece and the side of the other inner side wall are adhered so as to be closed with a synthetic resin film, respectively, so that the closing piece and the synthetic resin film are joined together. Bending outward, a cardboard connecting piece continuous to the side of the outer side wall is provided, and the connecting piece is bonded to each of the adjacent outer side walls, and a cardboard adhesive piece connected to the lower end portion of the outer side wall is provided. To provide A cardboard container for food, wherein the adhesive piece is adhered to the back surface of the bottom wall. 2. A waterproof synthetic resin film of cardboard,
2. The cardboard container for food according to claim 1, wherein the synthetic resin film adhered so as to close the opening between the closing piece and the side of the inner side wall is a continuous and integral synthetic resin film. 3. The cardboard container for food according to claim 1, wherein the bottom wall has a square shape. 4. The cardboard container for food according to claim 1, wherein the bottom wall is rectangular. 5. The cardboard container for food according to claim 1, wherein the bottom wall has a triangular shape. 6. The cardboard container for food according to claim 1, wherein the bottom wall has a hexagonal shape or more. 7. The cardboard container for food according to claim 1, wherein connecting pieces are provided on both sides of one of the opposed outer side walls. 8. The cardboard container for food according to claim 1, wherein one connecting piece is provided on each side of the outer side wall.