JPH0445658Y2 - - Google Patents

Description

[Detailed explanation of the invention] Industrial application field This invention is used to seal alcohol, coffee, etc.
The present invention also relates to a self-heating container that can heat the contents without applying heat from the outside.

Conventional technology and its problems Conventionally, self-heating containers have been equipped with a heating chamber in the lower part of the container, in which water and a substance that causes an exothermic reaction with water are stored vertically and separated by a single partition wall. The lower wall of the heating chamber is exposed to the outside of the container, and a pin insertion hole is formed in the lower wall of the heating chamber through which a pin that penetrates the partition wall is inserted. The one that is closed is used. When heating the contents in such a self-heating container,
With the container turned upside down, a pin is inserted into the heating chamber through the pin insertion hole, and the pin breaks through the partition wall to form a through hole, and the water that flows out through this through hole undergoes an exothermic reaction with it. The container was brought into contact with a substance that causes an exothermic reaction, and then left upside down again, and the contents were heated by the heat generated by the exothermic reaction.

However, in such self-heating containers,
Since the water only flows out of one hole formed by the pin, it takes a long time to contact the entire particulate material. Therefore, there was a problem that it took a long time for the exothermic reaction to occur, and the heating efficiency of the contents was poor.

The purpose of this invention is to provide a self-heating container that solves the above problems.

Means for Solving the Problems The self-heating container according to this invention is equipped with a heating chamber containing a container in which water is sealed and a particulate material that causes an exothermic reaction with water. The lower wall is exposed to the outside, and a pin insertion hole is formed in the lower wall of the heating chamber through which a pin that penetrates the peripheral wall of the watertight container is inserted. This is a self-heating container that can heat the contents by breaking the surrounding wall and letting the water flow out, causing an exothermic reaction by bringing the water and particulate matter into contact, and using this heat to heat the contents, with two watertight containers inside the heating chamber. They are arranged one above the other, and a predetermined distance is maintained between both water-tight containers, between the upper water-tight container and the upper wall of the heating chamber, and between the lower water-tight container and the bottom wall of the heating chamber. The granular material is densely packed to fill the remaining space in the heating chamber.

In the above, there are many known substances that cause an exothermic reaction with water, and among them, quicklime, caustic soda, sulfuric acid, nitric acid, calcium hydroxide, metallic sodium, magnesium chloride, iron chloride, etc. are preferably used.

Function: Two water-tight containers are arranged in the heating chamber, and the space between the two water-tight containers, between the upper water-tight container and the upper wall of the heating chamber, and between the lower water-tight container and the lower wall of the heating chamber. There is a predetermined interval between them, and the granular material is densely filled to fill the remaining space in the heating chamber, so when the pin is inserted through the pin insertion hole during use, the pin seals both water-tight. Both the upper and lower parts of the container are torn to form through holes, and the water in both watertight containers flows out from these holes at the same time, so the water quickly spreads throughout the heating chamber and comes into contact with all particulate matter. do. Therefore,
An exothermic reaction occurs in a short time.

Embodiments Hereinafter, embodiments of this invention will be described with reference to the drawings.

In FIG. 1, a self-heating container 1 includes a cylindrical body 2 made of a composite material mainly made of paper, and recesses 5 and 6 that are fitted into openings at both upper and lower ends of the cylindrical body 2. And 2 at both upper and lower ends of body 2
It consists of a metal top closure body 3 and a metal bottom closure body 4 that are fixed by heavy wrapping, and a heater 7 placed in the lower part of the body 2.
The heating chamber 8 contains two sealed containers 23, upper and lower, and quicklime 21.

The bottom wall 5a of the concave portion 5 of the top closing body 3 is provided with a removed portion 13 surrounded by a score line 12 formed around the entire circumference near the periphery thereof. A pull tab 14 is attached to the removal section 13 .

A pin insertion hole 15 is formed in the bottom wall 6a of the concave portion 6 of the bottom closure body 4. This pin insertion hole 1
5 is closed with a closure piece 16 made of flexible packaging material such as laminated aluminum foil, plastic film, paper and plastic laminate, etc. which is glued to the outer surface of the bottom wall 6a.

The heater 7 has a substantially inverted U-shape in vertical section and is open downward. An outwardly protruding horizontal wall 18 is integrally provided at the periphery of the lower end opening and is in contact with the upper surface of the bottom wall 6a of the concave portion 6 of the bottom closing body 4. A vertical annular wall 19, which is sandwiched between the circumferential wall of the body 2 and the circumferential wall 6b of the concave portion 6 of the bottom closure body 4, is integrally provided in a downwardly projecting manner. A flange 20 is integrally provided at the lower edge of the vertical annular wall 19, and this flange 20
are wound together in the seam portion 10 of the body 2 and the bottom closure body 4. The heater 7 is made of a metal that has good thermal conductivity and has been subjected to anti-corrosion treatment, such as an aluminum alloy that has been subjected to anodization treatment.

Inside the heater 7, two watertight containers 23 are arranged one above the other. Between both water-sealed containers 23,
between the upper water-tight container 23 and the upper wall 7a of the heater 7, and between the lower water-tight container 23 and the bottom closure body 4.
(the lower wall of the heating chamber 8), respectively, with a predetermined interval between them. The quicklime 21 is densely packed to fill the remaining space within the heater 7. The sealed container 23 is made of plastic film, laminated aluminum foil, or the like.

A sheet-like leak prevention member 24 is arranged so as to cover the entire inner surface of the bottom closure body 4. The leakage prevention member 24 is made of expanded polystyrene which has elasticity and whose thickness is reduced by plane compression force. Further, the thickness and the amount of plane compression of the preventing member 24 are such that it can absorb the expansion when the quicklime 21 and water 22 undergo an exothermic reaction.

In such a configuration, when heating a liquid L to be heated and drunk, such as alcohol or coffee, sealed in the container 1, as shown in FIG. 2, it is turned upside down from the state shown in FIG. break the closure piece 16 and insert the pin 25 into the hole 15 of the bottom closure body 4,
A through hole is formed by penetrating the leakage prevention member 24 and breaking through both upper and lower walls of both sealed containers 23. Then, after pulling out the pin 25, the container 1 is turned upside down again to return to the state shown in FIG. Then, the water 22 in both water-sealed containers 23 flows out from these through holes at the same time, and the heating chamber 8
It spreads throughout the interior and comes into contact with all the quicklime 21. Therefore, the exothermic reaction occurs in a short time, and as a result, the liquid L is efficiently heated by the exothermic reaction.

After the pin 25 is pulled out, the pin penetration portion of the leakage prevention member 24 is closed by the elastic force of the prevention member 24 itself. As a result, water 22, quicklime 21, and substances produced as a result of the reaction between the two are prevented from leaking to the outside of container 1 through pin insertion hole 15. Moreover, since the prevention member 24 is made of expanded polystyrene and has heat insulating properties, the bottom closure body 4 is also prevented from becoming hot.

3 to 6 show modified examples of the sheet-like leakage prevention member.

In FIGS. 3 and 4, the sheet-like leakage prevention member 30 is made of a base paper used for forming paper tips, and has a size approximately equal to the bottom wall 6a of the concave portion 6 of the bottom closure body 4. It is placed in the heating chamber 8 so that the tip of the peripheral wall 30a comes into contact with the inner surface of the bottom closing body 4. Further, a cross-shaped pin insertion slit 31 is formed in a portion of the bottom wall 30b of the leakage prevention member 30 that corresponds to the pin insertion hole 16. When the pin 25 is inserted into the heating chamber 8 through the pin insertion hole 15, the portion around the slit 31 is deformed inward to form a pin penetration portion 32, as shown in FIG.
Then, when the pin 25 is pulled out, the deformed portion returns to its original state, the pin penetration portion 32 closes, and leakage of the substance within the heating chamber 8 is prevented.

In FIG. 5, a sheet-like leakage prevention member 33
is made of double-sided corrugated cardboard and has approximately the same size as the bottom wall 6a of the concave portion 6 of the bottom closure body 4. A cross-shaped pin insertion slit 34 is formed at a position corresponding to the pin insertion hole 15. Insert the pin 25 through the pin insertion hole 15 into the heating chamber 8.
When inserted into the pin, the portion around the slit 34 is deformed to form a pin penetration portion. pin 2
When 5 is pulled out, the deformed part returns to its original shape and the pin penetration part is closed.

In FIG. 6, a sheet-like leakage prevention member 35
is made of a press-molded paper product on which a large number of protrusions 36 are formed, and is approximately the same size as the bottom wall 6a of the recessed part 6 of the bottom closing body 4, and the protrusions 3
6 is put into the heating chamber 8 so that the tip thereof is in contact with the bottom wall 6a. A cross-shaped pin insertion slit 37 is formed at a position corresponding to the pin insertion hole 15. When the pin 25 is inserted into the heating chamber 8 through the pin insertion hole 15, the portion around the slit 37 is deformed to form a pin penetration portion. When the pin 25 is pulled out, the deformed portion returns to its original state and the pin penetration portion is closed.

In addition, the sheet-like leakage prevention member can be made of foamed plastic such as expanded polystyrene or urethane foam, rubber, sponge, double-sided corrugated cardboard, single-sided corrugated cardboard, multilayer crepe paper, plate-shaped sheet made of base paper, or press-molded paper. A material with a large number of protrusions formed thereon, a material made of paper formed into a corrugated shape, etc. are used. It is preferable to form a pin insertion slit at a position corresponding to the pin insertion hole in the sheet-like leakage prevention member. However, if the sheet-like leakage prevention member is made of a material having rubber-like elasticity such as foamed plastic, rubber, or sponge, it is not necessary to form the slit.

In the above embodiments and modified examples, a sheet-like leak prevention member that prevents leakage of substances inside the heating chamber is arranged to cover the pin insertion hole, and the leak prevention member is able to pass through the pin, and when the pin is removed, the sheet-like leak prevention member Since the penetration part is designed to close, when the pin is inserted into the room through the pin insertion hole and penetrated through the leak prevention member, and after the pin breaks through the partition wall, the pin is pulled out. It is possible to prevent each substance in the room and the substances produced as a result of the exothermic reaction of two or more substances in the room from leaking to the outside of the container through the pin insertion hole. Therefore, it is possible to prevent problems caused by this leakage, such as insufficient heat generation or the substance accidentally entering the mouth when eating or drinking the contents in the container.

In addition, since the space inside the heating chamber is blocked by the leakage prevention member, during transportation and handling, etc.
Can prevent movement of quicklime and watertight containers. If quicklime or water-sealed containers are moved, the sealed container may rupture and an exothermic reaction may occur between the two. Also,
If the sealed container moves, even if the pin is inserted into the heating chamber, the pin may not be able to properly penetrate the peripheral wall of the sealed container, making it impossible to cause an exothermic reaction.

Effects of the invention According to the self-heating container of this invention, as mentioned above, the water in the watertight container quickly spreads throughout the heating chamber and comes into contact with all the particulate matter, so the exothermic reaction occurs quickly. happen. Therefore, the contents can be efficiently heated by exothermic reaction.

[Brief explanation of the drawing]

Fig. 1 is a vertical cross-sectional view of a self-heating container according to an embodiment of this invention, with the middle part omitted; Fig. 2 is a partial vertical cross-sectional view of the water-tight container broken with a pin; Fig. 3; 4 is a perspective view showing a modified example of the leak prevention member, FIG. 4 is a perspective view showing a state in which a pin penetration part is formed in the leak prevention member of FIG. 3, and FIG. 5 is a perspective view showing another modification of the leak prevention member. FIG. 6 is a perspective view showing still another modification of the leakage prevention member. 1... Self-heating container, 4... Bottom closure body, 8...
... Heating chamber, 15 ... Pin insertion hole, 21 ... Quicklime, 22 ... Water, 23 ... Water-tight container, 25 ...
pin.

Claims (1)

[Scope of utility model registration request] It is equipped with a heating chamber containing a sealed water container and particulate matter that causes an exothermic reaction with water.The lower wall of the heating chamber is exposed to the outside, and A pin insertion hole is formed through which a pin is inserted to break through the peripheral wall of the watertight container, and during use, the pin inserted through the pin insertion hole breaks the peripheral wall of the watertight container, allowing water to flow out and bringing the water and particulate matter into contact. causes an exothermic reaction,
It is a self-heating container that can heat the contents using this heat, and has two water-sealed containers arranged above and below in a heating chamber, and between the two water-sealed containers, the upper water-sealed container and the upper wall of the heating chamber. and between the lower water-tight container and the lower wall of the heating chamber, and the particulate matter is densely packed to fill the remaining space in the heating chamber. Heated container.