JPH09169367A - Packaging box for pizza - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a packaging box that can be heated even with a household microwave oven by a method wherein a severable double perforation is provided along scores extending in parallel with one side of the box to the top, to both sides, and to the base. SOLUTION: A flat box is made with its top and base being made in the same square, and a circular sheet of microwave heating element is softly stuck to the inside at the base of the box. Two perforations 1, being in parallel with each other, are provided, being in parallel with one side of the box, at positions separating respectively by 2cm and 6cm from the side. On heating a pizza, the box is severed at the perforation 1 separating by 6cm from the side. Then the box, with the pizza being put therein, is placed upside down, namely with the base to which the circular sheet of microwave heating element is stuck placed to face upward, on a turn table of a household microwave oven in a normal size, and the pizza is heated together with the box. As the pizza is held under an appropriate protection by the top of the box while being heated, the pizza itself can be prevented from being heated excessively.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a packaging box for pizza. More specifically, the present invention relates to a pizza packaging box that can be used as a heating container when packaging pizza and roasting and heating the pizza prior to eating.

[0002]

2. Description of the Related Art There have already been a few reports on so-called one-way pizza packaging boxes that can be roasted and heated together with a container in a heating means such as a microwave oven.

For example, in the following two patent publications, the description of a heatable pizza packaging container is recognized. 1: Japanese Patent Publication No. 4-62951 (published on October 8, 1992) "Food heating container for microwave oven and manufacturing method thereof" 2: Japanese Patent Publication No. 4-65514 (publicized on October 20, 1992) " Package Assembly Containing Multi-Side Microwave Interaction Tray "

Pizza is often used in home parties and the like. In terms of usage, it is most often heated in a microwave oven for home use. Generally, the microwave oven for home use does not have a large capacity, so even if it is in a heatable pizza packaging container, it is necessary to heat a relatively large pizza used for a party. In some cases, the heatable container was not available. Therefore, a large pizza must be taken out of the container, cut, and then heated, but there is a risk of burns when taken out of the oven after heating.

[0005]

SUMMARY OF THE INVENTION In consideration of the above problems, it is an object of the present invention to provide a heatable pizza packaging container that can be used in a household microwave oven.

[0006]

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present inventors collected a large number of heatable pizza packaging boxes currently in use and compared and examined them. )-(3) were obtained.

(1) When the pizza is heated as it is in the packaging container, it is not necessary to heat the pizza while it is contained in the entire packaging container.

(2) Even if the pizza is heated while it is partially inside the packaging container, a heated pizza having the same taste and texture as when the entire pizza is housed in the packaging container and heated. You can get it. That is, even if the heating is performed with a part of the packaging container protruding, it does not become excessively dry.

(3) It is effective and practical to preserve the form and flavor of the pizza that the whole pizza is stored in a flat box-shaped container having a size slightly larger than the diameter of the pizza until just before eating. That's the method.

The present invention has been completed based on the above findings.

That is, the first invention according to claim 1 is
At least a part of which is composed of a microwave heating element, and the lid surface and the bottom surface are substantially square flat plate-like boxes, and / or a lid in which a circular flat plate-shaped paperboard composed of microwave heating elements is enclosed. A box-like box having a substantially square surface and bottom surface, and a double cut line (1) that is cut along a cut line extending parallel to one side of the box and extending to the lid surface, both side surfaces and the bottom surface. A pizza packaging box characterized in that cut edges (2) are provided at both edges of a lid surface orthogonal to a side.

According to a second aspect of the present invention, at least a part of the microwave heating element is constituted by a microwave heating element, and the cover surface and the bottom surface are substantially square flat plate-like boxes, and / or the microwave heating element. A substantially square plate-like box with a lid surface and a bottom surface that have the same shape as the enclosed circular flat paperboard, along a cut that extends parallel to one side of the box to the lid surface, both side surfaces, and the bottom surface. Double cuts (1) that can be cut by cutting, folds (3) that are provided on the lid surface parallel to the double cuts (1), and can be cut at both edges of the lid surface that reach the fold line It is a packaging box for pizza, which is provided with a cut line (2).

According to a third aspect of the present invention, at least a part of which is constituted by a microwave heating element, and the lid surface and the bottom surface are substantially square flat plate-like boxes, and / or the microwave heating element. A substantially square plate-like box with a lid surface and a bottom surface that have the same shape as the enclosed circular flat paperboard, along a cut that extends parallel to one side of the box to the lid surface, both side surfaces, and the bottom surface. Double cuts (1) that can be cut by cutting, and cuts (2) that can be cut at the four corners of the lid surface
A packaging box for pizza, characterized in that

According to a fourth aspect of the present invention, at least a part thereof is constituted by a microwave heating element, and the lid surface and the bottom surface are substantially square flat plate-like boxes, and / or the microwave heating element. A substantially square plate-like box with the same shape of the lid surface and the bottom surface, in which the configured circular flat-plate paperboard is enclosed, and along the cut extending to the lid surface, both side surfaces and the bottom surface parallel to one side of the box. Double cuts that can be cut by cutting (1)
And a severable cut (2) is provided at both edges of the lid surface orthogonal to the side, and in addition, a double severable cut (1) is formed in a direction perpendicular to and opposite to each other. The pizza packaging box is characterized in that it has two cuts (4) extending over substantially the center of the gap between the cuts.

That is, the first aspect of the present invention is the basis of the present invention, and is a double cut line (1) that can be cut immediately before heating pizza without using a special cutting tool.
There is the convenience that the packaging box can be halved by hand and the container part containing pizza can be housed in the microwave oven and heated.

The second invention is one of the application inventions of the first invention, in which the packaging box is divided into two and the portion containing the pizza is heated, but after heating, the lid surface is manually pressed. When lifted,
The lid can be easily opened up to the line of the fold line (3) on the lid surface.
When heated, the pizza does not overheat itself, allowing for moderate protection of the lid. In addition, the hot pizza immediately after being heated has the convenience of handling that it can be safely taken out of the container without being burned.

The third invention is also one of the application inventions of the first invention, and the packaging box is divided into two to heat the portion containing the pizza. After heating, the lid surface is manually opened. When lifted,
According to the cut (2) on all sides around the lid surface,
The entire lid surface can be easily removed. Since the lid surface does not become extremely hot even immediately after heating, there is a handling convenience that it can be safely taken out from the container without being burned by hot pizza immediately after heating. In addition, since the empty container after eating pizza is dusty, it can be used for cleaning the table such as collecting scattered pizza scraps.

The fourth invention is also one of the application inventions of the first invention. The packaging box is divided into two parts, and one part of the hollow or rectangular container piece that can be separated along the double cut (1) from the part without pizza is cut and expanded to form a strip. Then, the two notches (4) provided in advance are engaged with each other vertically to form a loop. This ring
Is laid under a container portion containing pizza in a microwave oven and is used for uniformly adjusting the heating state of the pizza.

Generally, when a relatively thin and large food such as pizza is heated in a microwave oven, heating unevenness due to a difference in electron beam density depending on the location in the oven is likely to occur. Moreover, if it is attempted to heat the entire surface evenly, it is likely that a partially overheated portion will occur. In particular, when food is placed directly on the rotating plate and heated, uneven heating is likely to occur.

In order to prevent uneven heating, it is advisable to hold the food at a position where the electron beam density is kept uniform, that is, at a position higher than the rotating plate. The ring (loop) obtained in the fourth invention
Is useful for properly heating the pizza in a microwave oven.

The height of the loop is determined by the heating performance of the microwave oven used. Usually, about 4 cm is enough. Therefore, in the fourth invention, the interval (width) between the double cuts (1) that can be cut along the cuts extending to the lid surface, both side surfaces and the bottom surface in parallel to one side of the box is 4
It is good to have about cm. Of course, this interval (width) may be changed appropriately.

[0022]

BEST MODE FOR CARRYING OUT THE INVENTION The pizza packaging box of the present invention is a substantially square flat plate-like box having a lid surface and a bottom surface having the same shape, at least a part of which is constituted by a microwave heating element. For example, a flat-plate box in which a microwave heating element is attached to a part, or a substantially square flat-plate box having the same lid surface and bottom surface in which a circular flat-plate-shaped paperboard constituted by the microwave heating element is enclosed. Is.

The material used for the flat box is not particularly limited as long as it has microwave heating resistance. For example, cardboard whose surface is coated with a water-resistant and heat-resistant resin is used.

There is no particular limitation on the method of connecting the respective surface panels forming the box. Appropriate joining methods such as panel-to-panel adhesion with adhesive flaps and panel-to-panel contact with insert flaps are adopted.

Hereinafter, the first to fourth inventions will be described.
Each embodiment of the invention will be described with reference to the drawings. The pizza itself housed in the box is not shown in order to avoid complication of the drawing.

FIG. 1 is a perspective view of a pizza packaging box illustrating an embodiment of the first invention. In the figure, the broken line indicates a break that can be cut. That is, the box has two types of cuts (2), which are parallel to one side of the box and extend to the lid surface, both side surfaces and the bottom surface, and a double cut (2) on both sides of the lid surface orthogonal to the side. A break is provided.

FIG. 2A is a perspective view of a pizza packaging box illustrating an embodiment of the second invention. In the figure, thick broken lines indicate cuts that can be cut, and medium thick lines indicate folds. That is, the box has a fold (3) parallel to the double cut (1) on the lid surface of the box, and a double cut (1) parallel to one side of the box and extends to the lid surface, both side surfaces and the bottom surface. Further, three types of lines, that is, a fold (3) to a nick (1), are provided on both edge angles of the lid surface orthogonal to the side.

FIG. 2 (b) shows a double cut (1) extending from the pizza packaging box of this embodiment to the lid surface, both side surfaces and the bottom surface in parallel with one side of the box. A box after use in which a part of the box is cut off and most of the edge is cut and released along the cuts from the fold (3) to the double cut (1) on both sides of the lid surface. It is a reference diagram showing the state of.

FIG. 3A is a perspective view of a pizza packaging box exemplifying an embodiment of the third invention. In the figure, a thick broken line indicates a break. That is, the box has a cut (2) on the four corners of the cover surface capable of cutting the cover surface of the box (2) and a double cut (1) parallel to one side of the box and extending to the cover surface, both side surfaces and the bottom surface. ) Two kinds of cuts are provided.

Further, FIG. 3 (b) shows that the pizza packaging box of this embodiment has a box cut along a double cut extending parallel to one side of the box and extends to the lid surface, both side surfaces and the bottom surface. It is a reference drawing which shows the state of the box after use which cut | disconnected the part and cut | disconnected and opened the whole lid surface along the notch | corner on the edge of four sides of a lid surface.
After use, the box will look like a dust remover.

FIG. 4A is a perspective view of a pizza packaging box illustrating the embodiment of the fourth invention. In the figure, a thick broken line indicates a break. That is, the box has two types of cuts (1), which are parallel to one side of the box and extend to the lid surface, both side surfaces and the bottom surface, and two (2) edges of the lid surface which are orthogonal to the side. A break is provided. Also, double break (1)
Two cuts (4) are formed on the inner side of the double cut (4) in a direction perpendicular to the double cut and opposite to each other and extending to approximately the center of the space between the double cuts.

Further, FIG. 4 (b) shows that the pizza packaging box according to this embodiment is separated from the pizza packaging box along the double cut line (1) when a part of the box is cut off, to form a hollow or square ring. One part of the container fragment was cut and expanded to form a band, and two cuts (4) provided in advance in the double cut (1) were engaged with each other vertically to form a loop (loop). It is a reference drawing showing a structure. The structure is laid in the oven under the part of the container containing the pizza and is used to adjust the heating condition of the pizza.

The present invention will be described below with reference to examples. The present embodiment does not limit the technical scope of the present invention.

[0034]

【Example】

(Example 1) = Example of heating pizza = (1-1) Production of packaging box for pizza: A 0.1 cm thick cardboard is cut, and external length 26.5 cm, width 26.5 cm height (thickness) 3.5 cm
We made a square box with the same lid and bottom. On the inner bottom surface of this box, a microwave heating element circular sheet attached to a cardboard paper having a diameter of 25.5 cm and a thickness of 0.2 cm was lightly attached. In addition, parallel to one side of the box, two lines of perforations at positions 2 cm and 6 cm inward of the box from the same side, and the edge angles on both sides of the lid surface orthogonal to the same side. Two perforation breaks were made in position. Furthermore, 2.5 cm incisions were made at two locations inside the parallel line cut, which were perpendicular to the parallel line and opposite to each other. In addition, this packaging box is the fourth
It corresponds to the packaging box of the invention.

(1-2) Preparation of pizza: A pizza prepared by cutting onion, chopped salami sausage and cheese for pizza from the usual ingredients was prepared. The diameter of the pizza was 25 cm. The pizza was placed in the pizza packaging box and stored in a freezer kept at -18 ° C for 24 hours.

(1-3) Heating of Pizza: The above frozen pizza was taken out from the freezer and left at room temperature for 30 minutes, and then the box was cut according to the perforations at the position of 6 cm of the packaging box. A hollow, square-ring-shaped container fragment was obtained by cutting out the box portion not containing pizza according to the perforations at a position of 2 cm. One part of this fragment was cut and expanded to form a band, and two cuts provided in advance were engaged with each other to form a loop. Place this ring (loop) in the center of a rotating disk inside a normal-sized (800W) household microwave oven, and turn the box of pizza on it upside down, that is, The bottom surface of the microwave heating element circular sheet adhered was placed face up, and the container was heated. The heating time was 6 minutes.

(1-4) State after heating pizza: The pizza was uniformly heated, and no overheated state such as charring of the crust portion or the topping portion was found. The pizza itself and the heating element circular sheet were sufficiently heated so that they could not be touched by hands. On the other hand, the temperature of the outer part of the packaging box did not rise so much and it was possible to pull it out of the oven by hand without worrying about burns. Further, the lid portion (lower portion when heated) of the packaging box could be easily and safely cut and removed according to the perforations. The heating element circular sheet and the lid were removed from the container, and the pizza was served on the table as it was.

[0038]

As described above, the pizza packaging box of the present invention can be used to heat a pizza evenly, even if it is a relatively large size pizza, when it is heated in a household microwave oven. Without overheating or burning,
It has the effect that it can be handled safely without causing accidents such as burns during handling.

[Brief description of the drawings]

FIG. 1 is a perspective view of a pizza packaging box illustrating an embodiment of a first invention.

FIG. 2 (a) is a perspective view of a pizza packaging box illustrating an embodiment of the second invention, and FIG. 2 (b) is a reference diagram showing a state of the box after its use.

FIG. 3 (a) is a perspective view of a pizza packaging box illustrating an embodiment of a third invention, and FIG. 3 (b) is a reference view showing a state of the box after its use.

FIG. 4 (a) is a perspective view of a pizza packaging box illustrating an embodiment of a fourth invention, and FIG. 4 (b) is a reference view showing a ring (loop) manufactured from a part of the box. Is.

[Explanation of symbols]

 1: Double cut that extends to the lid surface, both sides and bottom 2: Cut that can cut the edge of the lid surface 3: Fold of the lid surface 4: Notch in the double cut

Claims (4)

[Claims] 1. A substantially square flat plate-like box having a lid surface and a bottom surface having the same shape, and / or a circular flat plate-like paperboard, at least a part of which is formed of a microwave heating element. Is a substantially square flat plate-like box having the same lid surface and bottom surface, and a double cut that can be cut along a cut extending to the lid surface, both side surfaces and the bottom surface parallel to one side of the box ( 1) and a cut box (2) which can be cut at both edge angles of a lid surface orthogonal to the side, and a packaging box for pizza. 2. A flat plate box having a substantially square shape, at least a part of which is composed of a microwave heating element and having the same lid surface and a bottom surface, and / or a circular flat board which is constituted by the microwave heating element. Is a substantially square flat plate-like box having the same lid surface and bottom surface, and a double cut that can be cut along a cut extending to the lid surface, both side surfaces and the bottom surface parallel to one side of the box ( 1), a fold line (3) provided on the lid surface parallel to the double cut line (1), and a severable cut line (2) provided at both edges of the lid surface up to the line of the fold line. Packaging box for pizza characterized by. 3. A substantially square plate-like box having a lid surface and a bottom surface having the same shape, and / or a circular plate-like paperboard formed by the microwave heating element, at least a part of which is formed of a microwave heating element. Is a substantially square flat plate-like box having the same lid surface and bottom surface, and a double cut that can be cut along a cut extending to the lid surface, both side surfaces and the bottom surface parallel to one side of the box ( 1) and a cut box (2) which can be cut at the four corners of the lid surface. 4. A substantially square flat plate-like box having a lid surface and a bottom surface having the same shape, and / or a circular flat plate-like paperboard, at least a part of which is formed of a microwave heating element. Is a substantially square flat plate-like box having the same lid surface and bottom surface, and a double cut that can be cut along a cut extending to the lid surface, both side surfaces and the bottom surface parallel to one side of the box ( 1) and cut edges (2) at both edges of the lid surface orthogonal to the side, and in addition,
From the severable double cut (1) in a direction perpendicular to and opposite to each other, extending to approximately the center of the space between the double cuts 2
A packaging box for pizza characterized by having cuts (4).