JPH0529419U - Aluminum lunch case - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a lightweight lunch case that is advantageous for resource reuse without having any problems in processing hazardous industrial waste. [Constitution] In a lunch box case in which a partition frame is provided in a main body container composed of a bottom surface and sidewalls provided upright on the periphery thereof, these bottom surface, sidewalls and partition frame are integrally formed by molding aluminum foil. It is an integrated all-aluminum lunch case. Further, the assembling type all-aluminum lunch case main body container 1 is integrally formed by molding of aluminum foil, and the side wall 1 1 to ₂ of the upper edge or a plurality of the clip flap 4 is formed integrally In this case, one or a plurality of aluminum partition frames are housed in the main body container. A small container made of aluminum may be housed in the main body container.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a lunch case, and more particularly, to an all-aluminum lunch case.

[0002]

[Problems to be solved by conventional techniques and devices]

 Conventionally, in cases such as bento cases, especially those sold for vacations, plastic cases are often used because of their ease of manufacturing, cost savings, ease of handling, and lightness. In the case of a bento case, a partition frame is often provided inside, but since the plastic is easy to mold, there is an advantage that the main body container and the partition frame can be integrally injection-molded.

However, in recent years, from the viewpoints of treatment of harmful industrial waste, reuse of resources, and the like, what can be replaced with a plastic lunch case has been demanded. In this respect, a lunch box case made of cardboard can meet the requirements from these points of view, but it cannot be used multiple times because it is disposable. Further, since there is a problem that the liquid oozes depending on the food to be placed in the bento case, it is necessary to perform a special surface treatment on the thick paper, which increases the cost.

The present invention has been made in order to meet the above-mentioned demand, and an object thereof is to provide a lightweight lunch case that is free from the problem of treating harmful industrial waste and is advantageous for resource reuse. It is in.

[0005]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the present inventor has conducted earnest research on a method of making the lunch case made of all-aluminum from the viewpoint of lightness and ease of molding without the problem of plastic, and as a result, the present book This is a completed device.

That is, according to the present invention, in a lunch case in which a partition frame is provided in a main body container having a bottom surface and sidewalls provided upright on the periphery thereof, these bottom surface, sidewalls and partition frame are formed by molding aluminum foil. It is characterized by being integrally formed.

According to another aspect of the present invention, the main body container is integrally formed by molding an aluminum foil, and one or more clip flaps are integrally formed on the upper edge of the side wall. In the main body container, one or a plurality of aluminum partition frames are stored, or if necessary, a small aluminum container is stored in the main body container. ..

Hereinafter, the present invention will be described in detail with reference to the drawings.

[0009]

【Example】

The aluminum lunch case according to the present invention is an integrally-formed lunch case in which the entire case is integrally formed using aluminum foil, and a main body container is integrally formed using aluminum foil, and an aluminum partition frame is housed therein. It is roughly divided into assembled lunch boxes. The bento case referred to in the present invention includes not only Japanese foods and western foods but also cases used for serving foods for the same purpose as bento.

As shown in FIG. 1, the former integrated aluminum lunch case is formed by press forming using aluminum foil, bending process, etc., and a main frame 1 (bottom face 1 ₁ , side wall 1 ₂ ) and a partition frame 2 are provided. Is integrally molded. The small frame 3 may be defined by the partition frame 2.

Since the material is aluminum foil, the elongation is lower than that of plastic, and it is difficult to replenish the material with the progress of processing. It tends to be lower than that, and it is difficult for the corners to form an acute angle. In such a case, it can be solved by heating the aluminum foil and integrally forming it by warm working.

In the latter assembly type aluminum lunch case, as shown in FIG. 2, only the main body container 1 is integrally formed by press forming or bending using aluminum foil. The upper edge of the side wall of the main body container is preferably curled inward or outward, which is effective for maintaining the shape of the main body container. At that time, integrally molded hula-up 4 for clip the upper edge of the side wall 1 ₂ of the main body container 1 by an appropriate number. The clip flap 4 is usually used to lock the partition frame to the main body container, but it is also used to lock the small container in some cases. The clip flap 4 is made of aluminum foil, and since the aluminum foil has excellent holdability, the clip effect is great, and especially when the lunch case is used again, the holdability is maintained. There is.

As shown in FIG. 3, the partition frame 2 is separately formed into an appropriate shape and size by using a strip-shaped aluminum foil or an aluminum thin plate if necessary. It is preferable to bend (bend) at least the upper edge of the partition frame as shown in FIG. 4 to prevent danger. To store this in the main body container, as shown in FIG. 5, the clip flap 4 integrally formed on the upper edge of the main body container 1 can be fixed by bending it inward and sandwiching it.

The clip flap integrally formed with the partition frame may be used instead of integrally forming the clip flap with the main body container. Although it is possible to separately manufacture and use the clip flap, the number of points will increase and there will be a problem in handling.

In the case of the assembled aluminum lunch case, there are a lunch case in which only the partition frame is housed in the main body container, and a lunch case in which the partition frame and a small container made of aluminum are housed together. It goes without saying that this small container made of aluminum is integrally molded into an appropriate shape using an aluminum foil, like the main container (see FIG. 6).

The shape of the bento case can be appropriately determined to be rectangular, circular, or the like. Since the main body container is integrally formed by press forming of aluminum foil, the side wall inclines slightly upward, but due to this slope, it is easy to stack when stacking multiple aluminum lunch cases. In addition, wrinkles are more likely to occur in the corners of the main body container, but if colored, wrinkles are less noticeable.

[0018]

[Effect of the device]

 As explained above, according to the present invention, there is no problem in the treatment of harmful industrial waste, and it is further advantageous in resource reuse. Since it is made of all aluminum, it is lightweight and has excellent heat resistance and corrosion resistance, and is particularly advantageous for repeated use.

[Brief description of drawings]

FIG. 1 is a perspective view showing an integrated aluminum lunch case.

FIG. 2 is a perspective view showing a main body container in an assembled aluminum lunch case.

FIG. 3 is a diagram showing an example of a partition frame used in an assembled aluminum lunch case.

FIG. 4 is a cross-sectional view showing a state in which an upper edge of the partition frame is bent (folded).

FIG. 5 is a diagram illustrating a state in which the partition frame is clipped to the side wall of the main body container in the assembled aluminum lunch case.

FIG. 6 is a perspective view showing a small container.

[Explanation of symbols]

1 the main body container 1 ₁ body vessel bottom 1 ₂ container body side wall 2 partition frame 3 small container 4 clip flap

Claims (4)

[Scope of utility model registration request] 1. In a lunch box case in which a partition frame is provided in a main body container having a bottom surface and a side wall standing upright on the periphery thereof, the bottom surface, the side wall and the partition frame are integrally formed by molding an aluminum foil. Aluminum lunch case characterized by being. 2. A lunch box case in which a partition frame is provided in a main body container composed of a bottom surface and side walls erected on the periphery thereof, wherein the main body container is integrally formed by molding aluminum foil, and An aluminum lunch case characterized in that one or more clip flaps are integrally formed on the upper edge, and one or more aluminum partition frames are housed in the main body container. 3. The aluminum lunch case according to claim 2, wherein a small container made of aluminum is contained in the main body container. 4. The aluminum lunch case according to claim 2, wherein at least an upper edge of the aluminum partition frame is bent to prevent danger.