JPH08133349A - Food container wherein partial hot insulation/cold insulation is possible - Google Patents

Abstract

PURPOSE: To provide a food container wherein a food requiring a hot insulation and a food of which the quality may change when being heated, and in addition a food requiring a cooling, etc., can be contained together and served. CONSTITUTION: For a container wherein a plurality of storage spaces to contain a plurality of foods with different temperatures are formed, there are unevennesses for partitioning on the container or lid, and individual covering container 5 or covering lid 3 with a structure which can be fitted on the unevenness is attached to constitute a food container wherein a partial hot insulation/ cold insulation is possible. The covering container 5 or covering lid 3 is formed of a hot insulation material such as an expanded resin, or an electromagnetic wave-shielding material to shield an electromagnetic heating wave such as a metal sheet. Also, when the covering container 5 or covering lid 3 is formed of a hot insulation material such as an expanded resin, a moisture condensation- preventing means is provided on the internal surface.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a food container for individually storing cooked pickled vegetables and rice in separate compartments.

[0002]

2. Description of the Related Art Take-away lunch boxes, banquets,
Food containers that are used for legal purposes, cherry blossom viewing, etc. and that have multiple storage areas for storing food are separated in the container, but warm and cold ones For example, the sashimi, fruits, and salads that are stored together for warm rice may become warm and spoil the taste, and may cause decay. In addition, there is a product made entirely of styrofoam to improve heat retention. This means that the container as a whole has only the same heat retaining condition.

[0003]

Therefore, the present invention provides the same food container by accommodating foods that need to be kept warm, foods that change in quality when heated, and foods that need to be cooled. It tries to be able to do it.

[0004]

According to the present invention, the above problems are solved.
In a container formed with a plurality of storage locations for storing a plurality of foods with different temperatures, the container or lid has irregularities for partitioning, and individual covering containers or lids with a fitting structure are attached to the irregularities. Partial warming and cooling can be achieved.

In this food container, the cover container or cover is preferably made of a heat insulating material such as foamed resin or an electromagnetic wave shielding material such as a thin metal plate for shielding electromagnetic heating waves. Both the heat insulating material and the electromagnetic wave shielding material are provided outside the bottom surface of the food container depending on the usage. In addition, the cover container or cover such as a foamed resin of a portion capable of retaining heat may be provided with a dew condensation preventing means on the inner surface. A cloth, a non-woven fabric, or a water-absorbent film material in which a cross-linked product of sodium polyacrylate is mixed is attached, and a water-absorbent substance is mixed in a covering container or a cover lid body forming raw material.

[0006]

According to the present invention, an adiabatic section required for heat retention and cooling can be formed at a necessary portion in the same food container.
As a result, the food can be stored in a warm state, a cooled state, and a state in which heating from other food can be prevented.

When the cover container or cover is made of a heat insulating material such as foamed resin, the temperature can be kept constant. Adhesion of water droplets due to dew condensation during heat retention can be prevented by dew condensation prevention means provided on the inner surface of the cover container or cover. Further, when an electromagnetic wave shielding material that shields electromagnetic heating waves such as a thin metal plate is partially used, when the food container is heated in a microwave oven, even if other foods are warmed, the portion with the electromagnetic wave shielding material is Foods such as vegetables can be escaped from heating. It is not necessary to put a cover container or cover on each individual food container, remove it when it is displayed at the store so that the contents can be seen well, and only when it is necessary to keep warm or cool It can also be placed in the necessary compartment and heated in a microwave oven.

[0008]

1 is a plan view of a food container of the present invention, and FIG. 2 is a sectional view taken along line AA in FIG. This food container has a container body 1
For example, sashimi to be kept cold is stored in the section A on the side, and rice that is better kept warm is stored in the section B.
C, D, and E can be left at room temperature, and C has a structure suitable for accommodating omelet and pickles, D for salad, and E for boiled food.
The characteristic of this food container is section A that you want to keep cold.
Then, the lids 3 and 4 are fitted on the section B which is desired to be kept warm, so that the lids can be individually formed in addition to the food container lid 2. The cover lids 3 and 4 may be provided on the opening portions of the compartments A and B, for example, as shown by broken lines, or may be placed on the recesses of the food container lid 2 as shown by chain double-dashed lines. It is preferable that the cover lids 3 and 4 are made of synthetic resin foam having a large heat insulating effect. When the food container lid 2 is put over the lids 3 and 4, the lids 3 and 4 are covered.
Is even more difficult to come off and has good heat retention. Also, if you just want to keep warm until the time of sale,
It is preferable that the lid 3 is placed so as to cover the concave portion 2a on the upper surface of the food container lid 2, and is removed and reused at the time of sale.

In order to improve the heat insulating property, in the example of FIG. 1, individual covering containers 5 and 6 may be provided inside or outside the compartment A and the compartment B as shown by a chain double-dashed line. Since the cover lids 3 and 4 and the cover containers 5 and 6 are independent of the food container body, they may be used as needed. As the dew condensation preventing means 11, a commercially available water-absorbing material obtained by impregnating and cross-linking a non-woven fabric with sodium polyacrylate is attached to the inner surfaces of the covering covers 3 and 4 made of polystyrene foam. In addition, a cold pack 10 should be placed in areas that need to be kept cold, such as sashimi.
(Ice non, etc.), dry ice, etc. are appropriately used.

The present invention can also heat some of the food contained in the food container to heat it. Therefore, as shown in FIG. 3, an electromagnetic wave shielding material that shields electromagnetic heating waves of a metal (aluminum) thin plate is used as a lid 7 on a portion that does not require heating. The lid 7 covered with the electromagnetic wave shielding material may be placed on the concave portion of the upper food container lid 2 and used. In addition, a container covered with an electromagnetic wave shielding material is also used outside the bottom surface of the food container body to prevent heating due to reflection of electromagnetic waves.

The shape of the cover is not limited to this rectangular shape. For example, if it is not desired to heat the salad in the section D in FIG. 1, a substantially triangular plan view is used. The one shown in FIG. 3 is used to shield the sashimi in the section D. As the electromagnetic wave shielding material, in addition to a thin metal plate, a material obtained by mixing metal powder, metal pieces, and metal cotton in a synthetic resin and molding it into a lid shape may be used.

[0012]

As described above, according to the present invention, it is possible to accommodate and provide foods that need to be kept warm, foods that deteriorate when heated, and foods that need to be cooled in the same food container.

[Brief description of drawings]

FIG. 1 is a plan view of a food container of the present invention.

FIG. 2 is a sectional view taken along line AA in FIG.

[FIG. 3] (a) is a plan view and (b) is B of the cover for covering the electromagnetic wave shielding material.
It is a -B sectional view.

[Explanation of symbols]

 1 container body 2 food container lid 3 cover lid 4 cover lid 5 cover container 6 cover container 7 cover of electromagnetic wave shielding material

Claims (3)

[Claims] 1. A container in which a plurality of storage locations for storing a plurality of foods having different temperatures are formed, and the container or lid has irregularities for partitioning, and individual covering containers having a fitting structure with respect to the irregularities. Alternatively, a food container that can be partially kept warm by attaching a cover. 2. The food container according to claim 1, wherein the cover container or cover is a heat insulating material such as foamed resin or an electromagnetic wave shielding material such as a metal thin plate that shields electromagnetic heating waves. 3. The food container according to claim 1, wherein the covering container or the covering cover is made of a heat insulating material such as foamed resin and has a dew condensation preventing means on the inner surface thereof.