JPH05319460A - Self-combustion type can - Google Patents

Abstract

PURPOSE:To provide a self-combustion type can which is suitable for cooking or heating the contents and is lightweight, compact and excellent in safety. CONSTITUTION:The container is a self-combustion type can with a built-in heating element inside to boil or heat the contents such as corn, noodle or beverage contained in the can. A protruding part is formed in the lower part of a can main body 1 as an inner drum 4, and a solid heating element 5 is located in contact with an upper cover 2 of a combustion chamber in the inner drum 4 and supported on a special ceramic heat-insulator 6 having a through- hole 3a at the center. An igniting agent 8 with a high-temperature spontaneous igniting agent 8a on top is filled in the through-hole 3a and a match head agent 8b is projected outside from the lower end of the through-hole 3a through a bottom cover 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-burning can container in which the contents of the can, such as grains, noodles or liquid beverages, are boiled or heated by a heating element incorporated in the can. Regarding the improved structure of.

[0002]

2. Description of the Related Art Conventionally, so-called heating type can containers having various structures have been known for boiling or heating foods and beverages stored in can containers as they are.

Most of these exothermic means are lime-based ones, which utilize the heat of reaction by hydrating into quicklime, but some of them are metal oxides such as iron powder, aluminum powder or ferrosilicon powder. A self-combustion type exothermic means that uses a heat of oxidation by mixing a substance with a peroxide has been known.

[0004]

Among the above-mentioned conventionally known heat generating means, the former, that is, the lime type, consumes a large amount of the heat generating agent to obtain a constant temperature, and additionally has water to which a breaking means is additionally provided. Since it was necessary to enclose the bladder, the volume of the can was large relative to the contents, and there was the inconvenience that the product (waste) after the reaction became powdery and a large amount was generated. There is also a problem in that heat generation often occurs due to moisture absorption of the heat generating agent over time. The latter, which is a self-combustion type metal exothermic agent by ignition, has the advantage that high heat can be obtained during the reaction, and it is recognized that the boiling function, which was not expected in the former, can be obtained. In addition to the complicated heat insulation structure that causes the size of the can to increase, this type of exothermic agent also has a high ignition temperature, so the ignition device also requires cost, and the product cost rises sharply, resulting in a disposable can container. However, the reality is that it has not reached the level of practical application.

[0005]

[Means for Solving the Problems] In view of such a situation,
The inventors of the present invention have repeatedly conducted extensive experiments and improvements to reduce the size of heating elements, increase heat generation, reduce the size and weight of heat insulators, and rational configuration of ignition devices, and have solved the problems described in the related art. Is.

Further, the can container of the present invention comprises rice, wheat, beans, and other grains and udon noodles, buckwheat, instant noodles, and other noodles, which are called fever foods by quantitatively adjusting the solid heating element, and other boiling and cooking. From foods intended for (hereinafter referred to as "FF") to liquid drinks such as sake, coffee, tea, etc. called fever drinks and ready-made cooked foods, that is, soup, miso soup, porridge, etc. before meals. Foods that need to be heated to a certain temperature (hereinafter "F.
The purpose of the invention is to provide a highly safe can container at low cost, which can be applied to everything from "D").

That is, in order to achieve the above object, the present invention provides a combustion chamber in the lower part of the can body, and contacts the upper bottom of the combustion chamber with ferrosilicon powder, ferric oxide powder and lower than that. Position the solid heating element that is formed by compression mixing the following iron oxide powder into a flat shape, and support it with a special ceramic heat insulating body that has a through hole in the center, and place it in the through hole. Used a means of filling the upper layer with an igniting agent in which a high-temperature instantaneous ignition agent was laminated, and penetrating the bottom lid at the lower end of the through hole to expose the match pill.

Further, in particular, In the case of the F can container, the lower half peripheral wall of the combustion chamber is inscribed in the can body to facilitate the maintenance of the heat insulating effect and the taking out of the contents. Regarding the D can container, a measure was taken to further improve the heat insulating effect by keeping a constant distance between the peripheral wall of the combustion chamber and the inner wall of the can body.

Further, in the can container of the present invention, the members other than the members such as the upper lid or the bottom lid which are fastened to the can body and joined together, and the joints of the heating element and the heat insulator are joined by an adhesive. The means to do was also used.

Furthermore, in the present invention, a means is provided in which a protrusion is provided on the upper surface of the solid heating element so as to hold an air layer between the heating element and the heat insulating body.

[0011]

In the can container of the present invention having the above-mentioned structure, the volume of the combustion chamber is smaller than that of the conventional one because the heat generating agent is solidified and the heat insulator is made smaller and lighter with the high heat insulating special ceramics. It is possible to reduce the strength by 60% or more, and with this, the weight per aluminum can container can be reduced by about 25% when the same volume of contents as the conventional can container is heated to the same temperature. Have.

According to the can container of the present invention, the F.I. For F,
F. Regardless of the type for D, at least in the upper half of the combustion chamber, since the stored items are present between the inner wall of the can and the inner wall of the can, it also has the function of improving the heat insulating effect of this portion. In the structure which is supported via the protrusions, the heat insulating effect due to the air layer formed therebetween can be expected, and a can container with higher safety can be obtained.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of the present invention will be described in more detail below with reference to some embodiments shown in the drawings. F
An example of a can container for use, 1 is a can main body made of steel, aluminum, plastic, or the like, 2 is a top lid of a pull-top structure, 3 is a bottom lid, and has a through hole 3a in the center,
In each case, the can body 1 is wound and fixed. Reference numeral 4 is a convex inner cylinder, which is bonded and fixed so that the peripheral wall of the lower half portion is inscribed in the can body 1 to form a combustion chamber 4a.

Further, 5 is a solid heating element loaded in the upper part of the combustion chamber 4a, 6 is a heat insulating body molded from special ceramics for supporting the heating element, and 7 is a solid penetrating the center of the heat insulating body 6. Reference numeral 8 denotes an igniter cylinder that opens close to the lower surface of the heating element 5, and 8 is an igniting agent filled in the igniter tube. Furthermore, the match head 8b is exposed at the lower end of the ignition cylinder by penetrating the through hole 3a of the bottom lid 3.

FIG. 2 is mainly used for F.I. FIG. 10 shows an example of a D can container. In FIG. 10, reference numeral 10 is, for example, an aluminum plate that is deep-drawn and integrally formed with a combustion chamber 40a in which a peripheral wall keeps a constant distance from the inner wall of the can at the center of the bottom surface. In the combustion chamber 40a, reference numeral 20 designates a can body formed, and 20 designates an upper lid with a pull-top mechanism that is wound around the upper opening of the can body 10, and 30 designates a bottom lid having a through hole 30a formed in the center thereof. Similarly to the first embodiment, the solid heating element 5 and the ignition cylinder 7 are pierced through the central portion thereof to stack and fill the high-heat instantaneous ignition agent 8a and the ignition agent 8, and the match head 8b is projected at the lower end of the ignition cylinder. After attaching a thick ceramic heat insulator 6 made of a special ceramic that is made to be made, it is tightened integrally to the lower end of the can body 10, and the match pill 8b is exposed from the through hole 30a of the bottom lid. Is.

In the solid heating element 5 in each of the above-mentioned embodiments, ferrosilicon powder is mixed with ferric oxide powder and iron oxide powder of a lower order than this, and a certain amount of the powder is flattened. The special ceramics that are compression-molded and solidified and that constitute the heat insulating body 6 are obtained by firing in a sponge-like shape with silicon as a main component. Further, each of the ignition agent 8 and the high-heat instantaneous ignition agent 8a is a composition synthesized from finely divided metal and metal oxide, and the ignition agent 8 is easily ignited by a match pill and has a high burning rate. And a composition having a combustion temperature of about 1000 to 1500 ° C. is used as the upper layer of the high-heat instantaneous igniter.

In both figures, 9 and 9a respectively indicate a bottom cover and an upper cover made of a plastic material, and (S).
Shows a heat insulating sheet laid between the heat insulating body and the bottom cover as needed.

The F.D. An example of the use of the F can container is as follows: 60 g of solid heating element is loaded in the combustion chamber 4a, 140 g of processed (early cooked) rice (R) and 110 ml of fresh water are packed in the upper chamber of the can body. Then, the can body 1 is sealed with the upper lid 2.
Before cooking this, first remove the upper cover 9a to open the entire pull-top type upper lid 2 and take out the fresh water pack (P) (when processed rice is also packed, open it in the same manner). Then, the whole amount is poured onto the processed rice and the upper cover 9a is fitted again.

Then, the bottom cover 9 is removed, and the match pills 8 are attached by a side drug plate (not shown) attached to the bottom cover surface or the like.
If b is rubbed, the flame instantly ignites the solid heating element 5 through the igniting agent 8 and the high-heat instantaneous ignition agent 8a, and causes the heating element to self-combust. 14
It was 00 ° C.

When the solid heating element 5 was ignited in this manner, the rice in the can was boiled in about 10 minutes, and cooked rice without any kogation was obtained. However, a more delicious cooked rice can be obtained by performing unevenness for about 5 minutes after completion of boiling. In addition, steam during boiling is discharged to the outside from the gap of the upper cover 9a, and the rice juice blown out is discharged from the upper cover between the can body and a heat insulating sheet (not shown) wrapped around the can body. It flows down through.

Next, as shown in FIG. To describe an example of use of the can container for D, the solid heating element 5 of the combustion chamber 40a is set to 20 g, and 200 ml of the coffee liquid (D) is injected into the upper chamber of the can main body 10 and hermetically sealed. Bottom cover 9
After removing and igniting the match pills with a scraping paper and refitting the bottom cover, the coffee liquid inside rose to room temperature plus 40 ° C in about one and a half minutes, and a coffee having an appropriate temperature was obtained.

[0022]

[Effects of the Invention] The can container of the present invention, which has been described in detail in each of the above embodiments, has a low solid heating element, has a high combustion temperature, and has sufficient heat generation continuity for cooking or heating the contents. Therefore, the time from ignition to serving for eating and drinking is remarkably shortened as compared to the conventional can container of this kind, and the solid heating element shows almost no pulverization or volume expansion even after combustion, and remains in its original shape. Therefore, it is extremely advantageous for disposal.

Further, the heat insulator made of special ceramic has a small size, a light weight and a high heat insulating property, and the heat dissipation to the outside can be suppressed to the minimum, so that an efficient boiling or heating effect can be obtained. However, the F.V. having a constant distance from the inner wall of the can over the front surface of the peripheral wall of the combustion chamber. In addition to the can container for D, only the lower half of the heat insulating body is in contact with the inner wall of the can. Also in the can container for F, the inner wall of the upper half or more of the heat-insulating body, which has a particularly high degree of heating, is always in contact with the liquid or vapor. By forming an air insulation layer between the bottom lid and the bottom lid, there is no danger of overheating of nearby objects or burns due to abnormal heating of the can body, even for solid heating elements with extremely high combustion temperatures. Of.

Further, in the present invention, as a means for igniting a solid heating element, an ignition agent having a relatively low ignition temperature and an ignition agent having a high-heat flashing property are used in combination as an upper layer, so that a match head can be used quickly and easily. It becomes possible to burn the solid heating element, and in particular, it can be attached to the can container without breaking a large space in the ignition device, which brings great practical convenience.

Further, F. When boiling cereals in the F can container, the fresh water pack required for cooking is enclosed in the can body, so even if you forget to pour the fresh water into the can body and ignite it, boiling will start. Later, the high temperature inside melts the pack material early, and the water inside flows into the can, which can prevent the inconvenience caused by the empty heating.

Besides, according to the structure of the can container of the present invention,
The solid heating element, the heat insulator, the igniting means, and other components in the heat generating chamber are small in size and can be obtained at a low cost. Therefore, the volume of the can body for storing the same amount of the heating target as the conventional one can be small, In consideration of the cost of materials used, the production cost per can is reduced at a stretch, and the practicality as a self-fuel type disposable can container can be greatly increased.

Further, by fixing the joining members of the can container according to the present invention with an adhesive, the production cost can be kept further low, and the disassembling of the members becomes difficult, and also from the viewpoint of safety. It has many advantages that could not be expected from a conventional can container of this kind, such as advantages.

[Brief description of drawings]

 Figure 1 Vertical sectional view of the center of the F / F can container. Vertical sectional view of the center of the D container

[Explanation of symbols]

 1/10 Can main body 2/20 Top lid 3/30 Bottom lid 4/40 Inner cylinder 5 Solid heating element 6 Heat insulator 7 Ignition cylinder 8 Ignition agent

Claims (5)

[Claims] 1. A combustion chamber is provided at the bottom of a can body, and a ferrosilicon powder and ferric oxide powder are in contact with the upper bottom of the combustion chamber,
A solid heating element obtained by appropriately mixing and molding iron oxide powder of a lower order than this is positioned, and the solid heating element is supported by a heat insulating body made of a special ceramic having a through hole formed in the center thereof. The inside of the through hole is filled with an igniting agent whose upper layer is a high-temperature instantaneous ignition agent, and the bottom lid is penetrated through the lower end of the through hole to expose the match head medicine. A self-burning can container characterized by being removable. 2. A can container for cooking and cooking grains according to claim 1, wherein the lower half of the combustion chamber is inscribed in the can body. 3. A can container for heating a beverage liquid according to claim 1, wherein a constant space is maintained between the peripheral wall of the combustion chamber and the inner wall of the can body. 4. A component such as a top heating element or a bottom lid, which is fastened to the main body of the can, except for a member to be fastened to the main body, and each adhesive portion such as a solid heating element or a heat insulating element is fixed by an adhesive agent. The self-burning can container described. 5. A heat-insulating body, wherein a projection is provided on the upper surface of the heat-insulating body.
The self-burning can container described in 2, 3, or 4.