JPH0331737Y2 - - Google Patents

Description

[Detailed explanation of the idea]

[Industrial Application Fields] This invention relates to a heating container using a heating agent such as quicklime, and can be used for liquid beverages such as soup, miso soup, milk, coffee, and sake, cooked rice, vegetables such as potatoes and carrots, etc. For heating solid or semi-solid beverages such as meat such as beef and pork, fish and shellfish, canned or bottled beverages, and beverages filled in synthetic resin or bags made of aluminum laminated with synthetic resin. This invention relates to a heating container, and particularly to one with improved water injection means. <Prior Art> Various attempts have been made to heat various beverages using the heat of the hydration reaction between quicklime and water.
An example of this is disclosed in Publication No. 54382. However, in the heating container described in the same issue, an openable opening is provided at the top of the container for injecting water, and when used, the opening is opened and water is poured into the quicklime, so the hydration reaction This has the disadvantage that hot steam spews out from the opening, and when used outdoors, it is necessary to carry water separately. Therefore, as seen in, for example, Japanese Utility Model Publication No. 57-2867, a container has been proposed in which water for the hydration reaction is built into the container and the water is broken with an opening needle. The method also had the following problems. <<Problems to be solved by the invention>> In other words, the water injection means in the above publication is broken by piercing the water bag with an opening needle;
According to this method, the hole in the broken water bag has a diameter that is almost the same as the outer diameter of the opening needle, so the amount of water supplied at the beginning of the hydration reaction is insufficient, and not enough water is distributed throughout the quicklime. A large amount of unreacted quicklime remains, and the temperature of the heated object does not rise sufficiently. Moreover, if the amount of water supplied to the quicklime per unit time is insufficient at the beginning, the quicklime that reacts near the outlet of the hole in the water bag becomes slaked lime, and when the slaked lime is released from the hole, it may absorb water.
The hydration reaction occurs only in a relatively narrow area around the pores, making it extremely difficult to apply this method to heating solid or semi-solid foods and drinks, which require a large amount of heating energy. This invention was made in view of the above-mentioned problems, and its purpose is to provide a relatively simple and cost-increasing food and drink heating container that utilizes the hydration reaction between quicklime and water. It is an object of the present invention to provide a heating container equipped with water injection means that is extremely convenient and suitable for mass production, and particularly suitable for large-scale hydration reactions. <Means for Solving the Problems> In order to achieve the above object, this invention provides an insulated container consisting of a container part and a lid part, an inner container to be stored in the container part, and a heat-insulating container to be stored in the container part. a bag housed between the lever and the medium container and having water permeability at least on its lower surface; A belt-shaped water bag for a primary reaction whose closing part is held between the container part and the lid part, and which releases the water inside by breaking one of the closing parts and pulling it out to the other side when in use. The bag body contains an exothermic agent that causes a hydration reaction with water released from the belt-shaped water bladder for the primary reaction, and a water bladder for the secondary reaction that is torn by the hydration reaction. do. <<Embodiments and Operations>> Hereinafter, preferred embodiments of this invention will be described in detail with reference to the accompanying drawings. FIG. 1 shows an embodiment of the heating container according to this invention. The heating container shown in the figure is roughly composed of an insulating container 20, a band-shaped water bag 22, a water-permeable bag body 28 that stores a flat water bag 24 and quicklime 26, and an inner container 30 that stores food and drinks that are heated objects. It is configured. The insulation container 20 is made of paper, plastic, glass,
It is a box-shaped or cylindrical container assembled from plates of ceramics, metal covered with a heat insulating material, etc., and consists of a container part 20a with an open top end and a lid part 20b that closes the container part 20a. As shown in FIGS. 2A and 2B, the band-shaped water bag 22 has both ends closed, a predetermined amount of water 34 is sealed, and the insulating container 20 is located between the water-permeable bag body 28 and the container portion 20a. It is placed on the inner surface of the container part 20a or between the water-permeable bag 28 and the inner container 30, and the closing parts at both ends are placed between the container part 20a and the lid part 20b of the heat-insulating container 20. Let me hold it. The material used for the band-shaped water bag 22 is a thin film made of synthetic resin such as polyethylene, nylon, or polyester, or a laminate of two or more of them, or a resin film laminated with aluminum foil. Flat water bag 24 housed within a water permeable bag body 28
is broken by the hydration reaction of the quicklime 26, and releases the water inside for the secondary reaction of the quicklime 26. As shown in FIG. 3, a water bag 24 is placed at the center of the quicklime 26. Alternatively, the water bag 24 may be stored above the quicklime 26. Also, how to seal the water in the flat water bag 24 is as follows.
It is better to divide the room into multiple rooms as shown in Figure 4B rather than the integrated one shown in Figure A, and
Part of the partitioned area may be separated, or dotted line slits 1 may be inserted to facilitate separation. Of course, a plurality of completely independent water bags 24 may be used as shown in FIG. 4C. If the flat water bag 24 is partitioned or divided in this way, when the quicklime 26 undergoes a hydration reaction, the heat of the primary hydration reaction will be uneven, and if the flat water bag 24 breaks at any point, In addition, the internal water is released only at one place, and the reaction is prevented from proceeding only in the vicinity of the broken point, as in the case of breaking with an opening needle, and the quicklime 26 is reacted sufficiently and uniformly. becomes possible. The material of the flat water bag 24 is the same as that of the band-shaped water bag 22.
The material may be the same as that of The material of the water-permeable bag 28 may be paper, cloth, non-woven fabric, etc., which allow water to pass through easily over its entire surface, but other materials may also be used, such as aluminum foil or aluminum foil with a synthetic resin film attached. The quicklime 26 and the flat water bag 22 may be wrapped around each other, and a through hole 28a may be formed in at least the lower surface to make it water permeable, and this is illustrated in the drawings of this embodiment. The medium container 30 for storing food and drink is placed on top of the water-permeable bag 28 as shown in FIG. It is placed and stored on the bag 22.
The inner container 30 is most preferably molded from a metal foil such as aluminum, but may also be a laminate of a synthetic resin film and a metal foil, or a heat-resistant synthetic resin film. In addition, in the case of a food or drink such as a Japanese lunch box in which cooked rice and vegetables are stored separately, a partition is provided to separate the cooked rice and vegetables, or the medium container 30 is divided into a plurality of parts and stored in the insulated container 20. It turns out. As shown in FIG. 1, the lid part 20b of the heat insulating container 20 is attached to the opening of the container part 20a so as to hold both ends of the band-shaped water bladder 22 hanging down from the opening end of the container part 20a. It's covered. In use, food and drink are placed in the medium container 30. In this case, food and drink may be poured directly into the container, or food and drink may be placed in cans, plastic, or aluminum containers. In the case of canned food or retort food, it is better to place approximately 30 to 100 c.c. of water as a heat medium in the medium container 30 in advance. Next, one end of the band-shaped water bag 22 is broken and unsealed with the lid part 20b covered, and the water in the band-shaped water bag 22 is removed from the container part 20a by pulling it out to the other end side of the band-shaped water bag 22.
The quicklime 2 inside the water-permeable bag body 28
6 starts the hydration reaction from the bottom. According to such water injection means, the water in the band-shaped water bag 22 is supplied first at once, so it is necessary to either pierce the insulating container 20 from the outside with a sharp protrusion as in the past, or install a protrusion inside. In this case, it is possible to avoid the problem of not being able to sufficiently heat the beverage due to the fact that the amount of water released per unit time is small and a large amount of unreacted quicklime remains when breaking with a protrusion rod. Also, put an opening stopper in the sealed water bag.
A water injection method in which the opening plug is pulled out with a string or the like may be considered, but the work of attaching the opening plug to the water bag is troublesome and increases the cost. If the water remains between the bags 28, the discharged water will be obstructed by the remaining water bags and will not be able to reach the quicklime 26 in the center, leaving a large unreacted quicklime portion in the center. On the other hand, when a water bag is placed on the water-permeable bag body 28 and water is poured using an opening stopper, if this water bag remains, it will become a major obstacle to transmitting the heat of the hydration reaction of the quicklime 26 to the inner container 30. It is preferable that the water bladder used for this type of hydration reaction be pulled out and removed to the outside, like the band-shaped water bladder 22 of the present invention, to allow the hydration reaction to occur without the above-mentioned problems. Furthermore, if the strip-shaped water bag 22 is pulled out slowly, there is a risk that the discharged water will be unevenly distributed. It is desirable to sandwich several balls. Then, by pulling out the band-shaped water bag 22, the quicklime 26
When the hydration reaction starts, the reaction heat causes the flat water bag 24 housed in the water permeable bag body 28 to
is broken by the primary reaction heat of the quicklime 26, and water is discharged, thereby completing the reaction of the unreacted part of the quicklime 26 and heating the food in the food and drink container 30 to a temperature suitable for eating. The function of the flat water bag 24 is that when the amount of water in the band-shaped water bag 22 is increased, the upper and side parts of the water permeable bag body 28 will not be burnt by the reaction heat, but a large amount of hot steam will be spewed out, making it dangerous. I don't like it at all. On the other hand, if the amount of water in the band-shaped water bag 22 is reduced to such an extent that hot steam does not blow out, the reaction heat of the quicklime 26 will burn the top and sides of the water-permeable bag 28, leaving the unreacted part of the quicklime 26. Undesirable. Therefore, the amount of water required for the hydration reaction of the quicklime 26 is divided into appropriate amounts between the band-shaped water bladder 22 and the flat water bladder 24, thereby avoiding the above-mentioned problem. More specific examples will be described below. Example 1 A belt-shaped water bag 22 with 50 c.c. of water sealed in a container part 20a and closed at both ends is placed in a container part 20a.
Let it hang outward from the upper edge opening of a,
The water-permeable water bag 22 is installed so that the water in the band-shaped water bag 22 is located at the center bottom of the container 20a, and filled with 120 g of quicklime 26 and a flat water bag 24 filled with 30 c.c. of water. Place the sex bag body 28, and then place the medium container 30 containing 250 c.c. of soup on top of it.
With the lid part 20b covered, one end of the band-shaped water bag 22 was opened by tearing it, and the other end of the band-shaped water bag 22 was loosely removed from the insulating container 20, and then the temperature change of the soup over time was measured. However, the following results were obtained, and after 3 minutes, the temperature had reached the appropriate temperature where it could be eaten within 12 minutes.

[Table] Example 2 A heating container with the same structure as in Example 1 was used, commercially available canned fish meat was selected as the object to be heated, two of these were placed in the medium container 30, and then a strip-shaped One end of the water bag 22 was broken and pulled out to the other end. When the canned food was taken out and opened after 7 minutes, the temperatures were 69.6°C and 70.2°C, respectively.
It was heated and could be eaten warmly. Example 3 The basic configuration of the heating container is the same as the above example.
The flat water bag 24, which is the same as 1 and filled with 30 c.c. of water, is divided into four parts so that each can hold an equal amount of water, and this flat water bag 24 has a weight of 120 g.
It was housed in a water-permeable bag 28 so as to be located in the center of the quicklime. In addition, as the objects to be heated, beef and vegetables such as potatoes, which have been stewed and cooled to room temperature, and cooked rice, which is also at room temperature, are selected, and these are placed in the medium container 30, and the same is used as in the above embodiment. It was heated using a suitable method. As a result, after 5 minutes, the temperature of the stewed food had risen to 78.8°C, and the temperature of the cooked rice had risen to 76.6°C. <<Effects of the invention>> As described above in detail in the examples, according to the heating container according to the invention, initial hydration can be achieved by breaking one end of the band-shaped water bag and pulling it out to the other side. Since the water necessary for the reaction is supplied all at once, there is no shortage of water necessary for the initial reaction of the exothermic agent, unlike the conventional broken supply using an opening needle. In addition, the band-shaped water bag is filled with water and closed at both ends, and is easy to manufacture.The heating container is also made by placing the band-shaped water bag, water-permeable bag body, and inner container in a predetermined order in an insulated container. The structure is suitable for mass production since it is simply stored in layers.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view showing an embodiment of the heating container of the present invention, Fig. 2 is an explanatory diagram of how the band-shaped water bag is stored in the container, and Fig. 3 shows the flat water bag and quicklime placed in a water-permeable bag. FIG. 4 is a cross-sectional view of the flat water bladder stored in the body, and a plan view of each of three forms of the flat water bladder. 20...Insulated container, 20a...Container part, 22...
... band-shaped water bag, 24 ... flat water bag, 26 ... quicklime, 28 ... water-permeable bag body, 30 ... medium container.

Claims (1)

[Scope of utility model registration request] A heat-insulating container consisting of a container part and a lid part, an inner container stored in the container part, and a bag housed in the container part between this and the inner container and having water permeability at least on the lower surface. is disposed between the bag body and the inner surface of the container part or between the bag body and the inner container, and the both end closing parts are sandwiched between the container part and the lid part, and when in use, the closing part and a belt-shaped water bag for primary reaction that releases and supplies water by breaking one side and pulling it out to the other side, and hydrating the bag with water released from the belt-shaped water bag for primary reaction. A heating container containing an exothermic agent that causes a reaction and a water bag for a secondary reaction that is broken by the hydration reaction.