JPS5812768Y2 - food containers - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a food container that is convenient for heating a plurality of stored dishes at once in a microwave oven.

There are some foods that can be heated and some that should not be heated, and among those that should be heated, there are some that are best heated and some that should not be heated too much.
The optimal temperature for delicious food varies depending on the type of food.

Therefore, when heating pre-cooked food in a microwave oven for consumption, it is common to place each type of food separately in the microwave oven.

Incidentally, in recent years, hospitals and other institutions have begun to use external catering companies for their school lunch systems, and it has become common for hospitals to serve staple food such as rice and multiple side dishes in bento box-style containers. .

In this case, the food is usually kept cold.

Moreover, the plurality of dishes in the container include not only those that can be heated, but also those that should not be heated, such as vinegared dishes, salads, and fruits.

Therefore, when heating such food in a microwave oven in order to enjoy it, it is necessary to take out only the food that can be heated, which is time-consuming and requires a separate container. be.

However, it is better not to heat containers containing multiple dishes all at once in the microwave. Not only will all the dishes, including vinegared dishes and salads, be heated evenly, but there are also foods that can be heated. Even if the temperature of one of these dishes is appropriate, it is not necessarily the appropriate temperature for other dishes, which is not at all preferable.

Also, when heating food in separate dishes for each type of food in a microwave oven in a general household, there is no problem if the food is of the same type, but if multiple dishes of different types are heated in the microwave at once, It is not preferable to heat the food to an appropriate temperature.

In view of the above, the present invention was devised so that a plurality of stored dishes can be heated in a microwave oven at once according to their types, and the interior of the container is divided into multiple storage sections. At the same time, a metal layer that can block microwave oven microwaves is laid out and laminated on the bottom and lid plate of at least the storage compartment, so that the passage of microwaves can be regulated depending on the storage compartment, so that the stored food is not heated. This makes it possible to create storage sections that are heated and storage sections that are not heated, or storage sections that are heated to different degrees by varying the amount of microwaves that pass through them.

In this case, due to heat conduction from the heated storage area to the unheated storage area or storage areas with different degrees of heating, there is a risk that items that should be cold may be heated or heated items may cool down in a short period of time. In order to prevent such drawbacks, the present invention is made entirely of synthetic resin foam.

Next, embodiments of the present invention will be described based on the drawings.

Reference numeral 10 denotes a container having an appropriate shape, and 20 a lid plate corresponding to the container 10, both of which are mainly made of heat-resistant synthetic resin foam.

Examples of materials for heat-resistant plastic foam include polystyrene resin, polypropylene resin, polyethylene resin, polyvinyl chloride resin, styrene-maleic acid copolymer, ABS resin, and AS resin. I can do it.

The inside of the container 10 is partitioned into a plurality of storage sections 13 a , 13 b , and 13 C by a partition wall 12 erected on the bottom 11 .

A metal layer 14 such as aluminum foil, which can block microwaves from a microwave oven, is laid out and laminated on the bottom of at least the storage section. A metal layer 24 of the same quality and form as the metal layer 14 is spread and laminated at a position corresponding to 17F,
The passage of microwaves from the microwave oven can be regulated in the storage area between metal #14 and #24 under these -L.

Therefore, it is desirable to have a container shape that allows the lid plate 20 to be fixed at a fixed position with respect to the container 10, but in the case of the shape shown in the figure, it is preferable to provide positioning means such as marks or irregularities.

Metal layer 14 of container bottom 11 and metal layer 24 of lid plate 20
For example, as shown in FIGS. 1 and 2, the metal layer 1
When the metal layers 14 and 24 are laid out and stacked on the bottom 11 and the cover plate 20 of the parts corresponding to the storage parts 2 to 7, the metal layers 14 and 24
Among them, a perforated portion having through holes 15 and 25 can be provided to correspond to one or more storage portions 13b, and a non-porous portion can be provided to correspond to another storage portion 13a.

In this case, there is a storage section 13a where the passage of microwaves is completely blocked and a storage section 13b where the passage of microwaves is partially blocked, and especially when there is a storage section 13C where no box is laid out as shown in the figure, Storage section 13C where passage of microwaves is not blocked at all
By adding , you can create a three-stage storage compartment.

Furthermore, if the perforated part spans two or more storage parts,
The size of the through hole can also be made different so that the amount of microwave passing through each storage section is different.

Further, the metal layers 14 and 24 may be completely non-porous in addition to the above, and in this case, as shown in FIG. 13 Spread and laminate the entire surface of the area corresponding to a.

In this embodiment, there is a storage section 13a where the passage of microwaves is completely blocked, and storage sections 13b and 13 where the passage of microwaves is not blocked at all.
Can do C.

Furthermore, the metal layers 14 and 24 have through-holes 15 and 25 such that the microwave shielding degree differs for each storage section in all the storage sections in which they are spread and stacked, as shown in FIGS. 4 and 5. There may be.

In particular, if the ratio occupied by the through holes 15 and 25 is increased, the state becomes close to that where no metal layer is provided.

In the embodiments described above, in order to form the through holes 15 and 25 in the metal layers 14 and 24, the hole portions of the metal layers are usually cut out, and the shape thereof may be rectangular, circular, or any other shape. good.

In addition, it is possible to combine a plurality of strip-shaped foil pieces into a grid or form a net, and form holes between the grids or in the mesh.

In any of the embodiments, when the metal layers are made of aluminum foil or other foil, the means for spreading and laminating the metal layers 14 and 24 on the container bottom 11 and the lid plate 20 are as shown in the figure. In addition to the case where the bottom part 11 and the cover plate 2 are embedded and molded inside the synthetic resin foam that constitutes the
It can be pasted on one of the inner and outer surfaces of 0.

It is also possible to attach fine metal particles to the surface of the synthetic resin by metal vapor deposition or to apply metal coating.

In this case, the degree of microwave shielding can be changed depending on the degree of density of the metal layer, and the metal layer can be molded after being provided.

A metal layer 17 capable of blocking microwaves from a microwave oven is laid down on almost the entire surface of the outer circumferential wall 16 of the container 10, if necessary, and a metal layer 18 is also laid down on the entire surface of the partition wall 12. .

These metal layers 17 and 18 may regulate heat conduction within the foam and enhance thermal insulation.

The food container of the present invention is constructed as described above, and the storage portion in which the bottom 11 and lid plate 20 of the container 10 are not provided with a metal layer is used to store foods that should be heated hot, such as boiled food and grilled fish. In addition, among the storage parts provided with the metal layers 14 and 24, the storage parts in which the through holes 15 and 25 are formed store dishes that should be heated to a certain degree depending on the degree of the through holes 15 and 25, The storage section corresponding to the non-porous portion stores food that must not be heated, such as vinegared foods, salads, fruits, and ice cream.

When the previously cooked and stored food is to be heated in a microwave oven before being eaten as described above, the container is placed in the microwave oven with the lid plate 20 still attached to the container 10.

Microwaves from a microwave oven are transmitted in a straight line in the vertical direction, and in a storage section where a metal layer is not provided on the container bottom 11 and lid plate 20, the microwaves pass through without being blocked at all. Dishes stored in this part, such as boiled food and grilled fish, are heated by the microwave energy.

In addition, in the case where the bottom part 11 and the lid plate 20 are provided with metal layers 14 and 24 having through holes 15 and 25, microwaves are not blocked at the through holes 15 and 25 but beyond the through holes 15 and 25. Metal layer 14.2 in the magnolia part
4 blocks the microwaves, so depending on the size, shape, position, etc. of the through holes 15 and 25, the microwaves partially pass through, and the food stored in this area will not receive the microwaves. It is heated by absorbing microwave energy corresponding to the amount of water that passes through it.

In particular, if the sizes, shapes, etc. of the through holes 15 and 25 are set so that the amount of microwave passing through each storage section is different, the heating temperature of the food will be different for each storage section.

Furthermore, if the metal layers 14 and 24 laid out and laminated on the bottom part 11 and the lid plate 20 are non-porous, the passage of microwaves is completely blocked, and the vinegared food, salad, etc. in the storage part corresponding to these parts are completely blocked. The food is not heated at all.

As described above, the present invention divides the interior of the container into a plurality of storage sections, and at least the bottom of the storage section and the lid plate are laminated with a metal layer that can block microwaves from a microwave oven. Since the passage of microwaves is regulated by the metal layer, it is important to know whether a metal layer is provided inside the food container or whether the laid-out and laminated metal layers are non-porous or perforated. Depending on the difference, the stored food will be configured into storage areas that are heated by microwave energy and storage areas that are not heated, or storage areas that are heated to different degrees due to the difference in the amount of microwave energy that passes through them. If you separate the dishes that can be heated according to the degree of heating and the dishes that should not be heated and store them,
Even if the whole container is microwaved, food that should not be heated will not be heated or food that should not be heated too much will not be overheated, and each dish will be kept at the appropriate temperature.

Therefore, with this invention, multiple dishes stored in this container can be microwaved all at once, each dish can be kept at an appropriate temperature and delicious, and hot, cold, and hot food can be cooked at the same time. It heats up from inside, so there is no need to take out the food, and if it is used in a school lunch system in hospitals, etc., it is convenient and saves time on serving staff.

In particular, in the food container of the present invention, the internal storage compartment is divided by a partition wall, so that during or after heating in a microwave oven, the heat in the heated storage compartment is not transmitted to other parts such as the storage compartment that are not heated by convection. Not only that, but the entire container is mainly made of synthetic resin foam, so it has very good insulation properties, and the heat conduction through the partition walls is very small, so it must not be heated. It is possible to reliably keep food at a cool temperature, and to maintain each heating temperature well.

In other words, cold things do not get hot, and hot things do not cool down easily.

Furthermore, the food container of the present invention can also be used in general households when heating each type of food in a microwave oven at once. All you have to do is place each tableware in a storage compartment that corresponds to its heating degree and place it in the microwave, allowing you to heat different types of dishes to the appropriate temperature.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention, in which Fig. 1 is a partially cutaway perspective view with the cover plate removed, Fig. 2 is a longitudinal sectional view of the same, and Figs. 3 to 5 are respectively FIG. 7 is a schematic plan view showing another embodiment. 10...Container, 11...Bottom, 12.
...Partition wall, 13a13b, 13C...
Storage section, 14... Bottom metal layer, 20...
...Lid plate, 24...Metal layer of cover plate, 15.25
......Through hole.

Claims (1)

[Scope of utility model registration request] 1. Container 10 mainly made of heat-resistant synthetic resin foam
and a lid plate 20 corresponding thereto, and the container 10 has a plurality of storage compartments 13 a , 13 b , 1
3C, and a metal layer 14 that can block microwaves from a microwave oven at least at the bottom of the storage compartment.
A food container characterized in that a metal layer 24 having the same form as the metal layer 14 is spread and laminated on the other lid plate 20 at a position vertically corresponding to the metal layer 14 at the bottom of the container 10. . 2. The food container according to claim 1, wherein the metal layers 14 and 24 are non-porous and are laid out and stacked at least in a portion corresponding to the storage portion except for the negative storage portion. 3. The food container according to claim 1, wherein the metal layers 14 and 24 have through-holes 15 and 25 so that the amount of microwave passing through each storage section is different. 4. The metal layers 14 and 24 are laid out and stacked in locations corresponding to two or more storage areas, and the metal layers 14 and 24 are stacked according to the storage areas.
4. The food container according to claim 1, which has a portion formed with through holes 15 and 25 and a non-porous portion. 5. Utility model registration claims 1, 2, 3, or 4, in which a metal layer 17 capable of blocking microwave ovens is spread and laminated on almost the entire surface of the outer peripheral wall 16 of the container 10. Food containers listed in section. 6. Metal layer 1 that can block microwaves on the entire surface of the partition wall 12
The food container according to claim 1, 2, 3, 4, or 5 of the utility model registration claim, wherein 8 is laid out and stacked.