JPH0523161Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention relates to a heating container that heats food and drinks and other stored items by the heat generated by the hydration reaction of an exothermic agent. The present invention relates to an improvement in the storage form of.

[Conventional technology]

Conventionally, a heating container as shown in FIG. 4 has been known. This heating container 20 (hereinafter simply referred to as "container 20") consists of a rectangular box-shaped container body 2, an inner plate 3 stored in the upper part of the container body 2, and the container body 2 and the inner plate. A container body is constituted by a lid body 4 that opens and closes the upper part of the dish 3, and between the container body 2 and the inner dish 3, an exothermic agent 5 that generates heat by the hydration reaction of quicklime, etc. and water W are placed. are stored in a stacked state.

The container body 2 is made of a heat-resistant and heat-insulating material, such as cardboard, plastic, or polymeric foam material. Further, the above-mentioned inner plate 3 stores food and drinks in its storage recess 3a, and is made of a heat-resistant material.

In addition, the above-mentioned water W is primary water W ₁ for reacting with a part of the exothermic agent 5 to generate initial heat generation,
Thereafter, the exothermic agent 5 is separated into secondary water W ₂ for causing almost complete hydration reaction. The primary water W ₁ is sealed in a band-shaped water bag 6 so as to cover almost the entire bottom surface of the container body 2, and both ends of the band-shaped water bag 6 are connected to the container body 2 and the lid as shown in the figure. The container body 2 is sandwiched between the container body 4 and the container body 4.
being pulled out of the The band-shaped water bladder 6 is made of an easily tearable synthetic resin film, such as polyethylene, nylon, polyester, or the like.

On the other hand, secondary water W ₂ is sealed in the flat water bag 7,
Further, the flat water bag 7 is placed above the exothermic agent 5 and housed together with the exothermic agent 5 in a water permeable bag body 8. Above flat water bag 7
is made of a material that melts and breaks when heated, such as polyethylene, nylon, polyester, etc.

The water-permeable bag body 8 can be made of materials through which water easily permeates, such as paper, cloth, non-woven fabric, or aluminum foil (or aluminum foil with a synthetic resin film attached). It is made of a material such as the one provided in the bag, and is either formed into a bag shape in advance, or is folded to enclose the exothermic agent 5 and the flat water bag 7 inside. Then, the bag body 8 is placed on the belt-shaped water bag 6, whereby the exothermic agent 5 is mixed with the secondary water W ₂ and the primary water.
It is sandwiched from above and below by W ₁ .

This container 20 is capable of heating the food and drink (not shown) stored in the inner plate 3 by itself to a temperature suitable for eating. That is, when one of both ends of the band-shaped water bag 6 pulled out from the container body 2 is broken open and pulled out to the other end,
Primary water W ₁ is released from inside the strip-shaped water bag 6 to the bottom of the container body 2 and immediately permeates into the inside of the bag body 8 or flows through the water passage hole, and the exothermic agent 5 stored in the bag body 8 is heated. cause a hydration reaction. When the exothermic agent 5 starts a hydration reaction with the primary water _W1 , the reaction heat melts and ruptures the flat water bag 7 placed above the exothermic agent 5, and the water sealed inside the bag 7 melts and ruptures. Subsequent water W ₂ is released to complete the reaction of the unreacted part of the exothermic agent 5.

In this way, the hydration reaction is caused in two stages in the container 20, and therefore a complete reaction of the exothermic agent 5 can be expected and sufficient reaction heat can be obtained. It is capable of sufficiently heating the food and drinks stored in the refrigerator.

[The problem that the idea attempts to solve]

By the way, in the conventional heating container 20,
The exothermic agent 5 and the flat water bag 7 are housed inside the bag body 8.
Since the exothermic agent 5 and the flat water bag are packed in bulk, it is troublesome to pack or wrap the exothermic agent 5 and the flat water bag into the bag body. In particular, when the container 20 is circular like a bowl or bowl, the bag 8 must also be circular in plan view, and the exothermic agent 5 must be evenly distributed in such a circular bag 8. It is not always an easy task to cram it into a container or wrap it neatly into a circular shape.

Furthermore, if the container 20 is tilted or subjected to vibration, the exothermic agent 5 may be unevenly distributed inside the bag 8. In this case, there will be parts where the hydration reaction occurs and parts where it does not occur, resulting in an uneven temperature distribution. This may cause uneven heating of the food and drinks stored in the inner plate 3, or if the heating is extremely uneven, there is a risk that a complete hydration reaction may not be carried out and sufficient heat may not be obtained. Ta. Furthermore, the exothermic agent 5 expands when it undergoes a hydration reaction, but if the exothermic agent 5 is unevenly distributed, a large expansion occurs locally, and as a result, the inner plate 3 is lifted from the container body 2. There were times when it would slip or tilt.

This idea was devised in view of the above circumstances, and its purpose is to save as much effort as possible in the container manufacturing process, and to ensure that the hydration reaction of the exothermic agent is carried out completely and evenly. To provide a heating container capable of giving a sufficient and uniform amount of heat to a dish.

[Means to solve the problem]

This device consists of water sealed in a water bag and an exothermic agent that generates heat through a hydration reaction, which are stored in a layered manner at the bottom. In a heating container configured to heat and heat stored items through a hydration reaction with
The exothermic agent is stored in the bottom of a tray whose interior is divided by a partition wall and has a water passage hole formed in the bottom, and a flat water bag filled with water is placed in the upper part of the tray. The tray is housed in a water-permeable bag together with the flat water bag, and the bag is housed in the bottom of a container body in which a band-shaped water bag is housed at the bottom.

〔Example〕

An example of this invention is shown below in Figures 1 and 2.
This will be explained with reference to the figures. Figure 1 shows a heating container 1 (hereinafter simply referred to as "container 1") of this embodiment.
The same components as those of the conventional container 20 shown in FIG.

In the container 1 of this embodiment, a heating agent 5 such as quicklime and a flat water bag 7 are housed inside a tray 10 and then inside a bag body 8. The tray 10 described above is made of a heat-resistant material such as heat-resistant plastic or heat-resistant paper, and its interior is partitioned into four parts by partition walls 11, 11, as shown in FIG. At the same time, a large number of water holes 12 are formed in the bottom surface. Above partition wall 1
1 and 11 are trays 10 formed such that the bottom surface bulges upward. The bottom of the tray 10 is filled with the exothermic agent 5 up to the height of the partition walls 11, 11, and the flat water bag 7 is placed on top of the exothermic agent 5.

When manufacturing the container 1 having the above configuration, a predetermined amount of exothermic agent 5 is placed in the tray 10, and a substantially constant amount is evenly filled in each compartment, and after the upper surface of the exothermic agent 5 is leveled, A flat water bag 7 filled with primary water _W1 is placed on top of it. Then, the tray 10 is stored in the bag 8 or wrapped with the bag 8, and the bag 8 is stored at the bottom of the container body 2 in which the band-shaped water bladder 6 is placed in advance.

In the container 1 having the above configuration, the conventional container 2 described above is
0, when one of both ends of the band-shaped water bag 6 pulled out from the container body 2 is broken and opened, the primary water W ₁ is released from inside the band-shaped water bag 6 to the bottom of the container body 2. , this primary water W ₁ permeates or flows into the bag body 8 and further flows into the tray 10 through the water passage holes 12 on the bottom surface of the tray 10, causing the exothermic agent 5 to undergo a hydration reaction. When the exothermic agent 5 starts a hydration reaction with the primary water W ₁ , the flat water bag 7 ruptures due to the reaction heat, and the secondary water W ₂ sealed inside the bag 7 is released into the tray 10 . The exothermic agent 5 is released into each compartment to complete the reaction of the exothermic agent 5 in the unreacted portion, thereby making it possible to obtain sufficient reaction heat similarly to the conventional container 20.

In this container 1, since the exothermic agent 5 and the flat water bag 7 are stored in the tray 10, compared to the conventional case where the exothermic agent 5 is packed directly into the bag body 8, Exothermic agent 5 and flat water bag 7
The filling or wrapping work into the bag body 8 becomes extremely easy, and the manufacturing process can be made more efficient and labor-saving.

Moreover, since the tray 10 is internally divided by the partition walls 11, 11, even if the container 1 is tilted, the tray 10 of the exothermic agent 5
It is possible to prevent unevenness within 0, and prevent the occurrence of non-uniform and incomplete hydration reactions due to uneven distribution of the exothermic agent 5. Also,
The exothermic agent 5 expands uniformly over the entire tray 10, and it is possible to prevent the inner tray from lifting or tilting due to non-uniform expansion, which sometimes occurred in the past. This is particularly effective when the container 1 is carried not only horizontally but also vertically and is likely to be subjected to frequent vibrations, such as when the container 1 is used as a lunch box. It is. If the exothermic agent 5 is unevenly distributed, the exothermic agent 5 can easily slide on the bottom surface of the tray 10 by slightly shaking the container 1 horizontally and laterally, so that the exothermic agent 5 can be quickly corrected. It is possible to resolve this issue.

Furthermore, the tray 10 described above has partition walls 11,1
1 also acts as a reinforcing rib, so it has sufficient strength, and the partition walls 11, 11
The space formed inside the heating agent 5 also acts as a water passage, allowing the hydration reaction of the exothermic agent 5 to occur more uniformly.

That is, in the conventional container 20, the primary water
It was difficult for W ₁ to flow in the lateral direction, which caused the initial hydration reaction to occur locally, but in this container 1, the primary water W ₁ that permeated or flowed into the inside of the bag body 8 was 11, 11 can also flow laterally through the internal spaces of the trays 11, 11, so that the primary water _W1 easily spreads over the entire bottom surface of the tray 10, and almost evenly flows through the tray 10 from all the water passage holes 12... It will flow inside. As a result, the entire exothermic agent 5 in the tray 10 evenly undergoes an initial hydration reaction and generates heat, and the reaction heat melts and ruptures the flat water bag 7 over a wide area almost simultaneously. The secondary water W ₂ is released over a wide range, and a uniform hydration reaction can occur throughout the exothermic agent 5.

Therefore, the heat generating agent 5 can be uniformly caused to undergo a hydration reaction, and the food/drink portion etc. stored in the inner plate 3 can be uniformly heated. Further, by uniformly heating the flat water bag 7 and melting and breaking it, secondary heating can be performed evenly. Also,
If the amount of water stored in the flat water bladder 7 and the strip water bladder 6 is sufficient for the hydration reaction, steaming and heating will be possible using the steam generated during the hydration reaction.

Although one embodiment of this invention has been described above, this invention is not limited to the upper air embodiment, and various modifications and applications are possible.

For example, in the above embodiment, the container body 2 is shaped like a rectangular box, and therefore the shape of the tray 10 is also rectangular to correspond to the shape of the container body 2. In the case of a circular tray, a circular tray 15 as shown in FIG. 3 may be used. Of course, it is not limited to rectangular or circular shapes, but can be freely adapted to any other shape, and no matter what shape it is, it is possible to store the exothermic agent 5 and the flat water bag 7 in the tray, and the bag body 8. The task of storing the tray in the tray can be carried out extremely easily by following the same procedure as described above. This is a great advantage considering that in the conventional case of packing the exothermic agent 5 in bulk, it is not necessarily easy to evenly fill or wrap the exothermic agent in the bag 8 having a complicated shape. In addition, Figure 2,
Both of the trays 10 and 15 shown in FIG. 3 have their interiors partitioned into four compartments by a partition wall 11, but the number of compartments may be increased considering the size of the tray, etc. It goes without saying that you may set it as appropriate.

Further, after storing the tray 10 (or tray 15) containing the exothermic agent 5 and the flat water bag 7 in the bag body 8, the bag body 8 is further stored in a moisture-proof bag and sealed, and then the container body 2 It may be stored inside. In that case, it will be necessary to take out the bag body 8 from the moisture-proof bag before using the container 1 or when storing food and drinks in the inner plate 3. It is possible to prevent the exothermic agent 5 from becoming moist and causing a hydration reaction.

In addition, when a material with good thermal conductivity such as aluminum foil is used as the bag body 8, uniform temperature transfer to the inner plate 3 is expected due to the heat transfer effect of the reaction heat by the bag body 8. be able to.

[Effect of idea]

As explained in detail above, this invention stores the exothermic agent at the bottom of a tray whose interior is partitioned by a partition wall and has water holes formed at the bottom.
A flat water bag filled with water is placed in the upper part of the tray, the tray is housed together with the flat water bag in a water-permeable bag, and the bag is placed in a container with a strip-shaped water bag stored in the bottom. Since it is stored in the bottom of the main body, the water discharged by the breakage of the band-shaped water bag penetrates into the inside of the bag, and further flows uniformly into the tray from the water passage hole at the bottom of the tray. It is possible to uniformly cause a hydration reaction in the exothermic agent, and therefore, it is possible to uniformly heat and warm the stored items in the inner tray. Furthermore, by uniformly heating and melting the flat water bag,
Secondary heating can be performed evenly. Further, if the amount of water stored in the flat water bladder and the band-shaped water bladder is sufficient for the hydration reaction, steaming and heating can be performed using the steam generated during the hydration reaction. In addition, it is easier to manufacture than conventional containers in which exothermic agents are packaged in bulk, and can be freely accommodated in containers of any shape.Moreover, it prevents the exothermic agents from being unevenly distributed within the tray. Therefore, the stored items can be reliably and evenly heated with a sufficient amount of heat.

[Brief explanation of drawings]

Figures 1 and 2 show an embodiment of this invention. Figure 1 is a side sectional view showing the overall schematic structure of the heating container of this embodiment, and Figure 2 is a perspective view of the tray. be. FIG. 3 is a perspective view showing another example of the tray. FIG. 4 is a side sectional view showing an example of a conventional heating container. 1... Heating heating container, 2... Container body, 3...
Inner plate, 4... Lid, 5... Exothermic agent, 6... Band-shaped water bag, 7... Flat water bag (water bag), 8... Bag body, 10
... Tray, 11 ... Partition wall, 12 ... Water hole,
15...Tray, W (W ₁ , W ₂ )...Water.

Claims (1)

[Claims for Utility Model Registration] Water sealed in a water bag and an exothermic agent that generates heat through a hydration reaction are stored in a layered state at the bottom, and the water bag is broken. In a heating container configured to heat and heat stored items through a hydration reaction between water and an exothermic agent, the interior of the exothermic agent is divided by a partition wall and a water passage hole is formed at the bottom. A flat water bag filled with water is placed in the upper part of the tray, and the tray and the flat water bag are stored in a water-permeable bag body, and the bag body is A heating container characterized in that a water bladder is housed in the bottom of a container body.