JPH05305977A - Canned goods to be used by heating - Google Patents

Abstract

PURPOSE:To mix up contents of canned goods that are put in a container separately and are kept separate when heated up in disinfection process by releasing the state of such separation when the contents are heated up for consumption. CONSTITUTION:The interior of the main body 6c of a heat-resistant can with an opening part 6a provided on its upper part is divided by an elastic film 5 into two parts of an upper and a lower housing parts 7a and 7b, and liquefied contents 20 is put in the lower part while other contents 21 are separately put in the upper part. Furthermore, a needle-like member 22 is provided to a location above the elastic film so that the needle-like member can touch and rupture the elastic film when the film is swelled and deformed by heating-up of the can main body.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heating canned product in which the contents are directly heated together with the can body during use.

[0002]

2. Description of the Related Art Conventionally, canned foods have been used for preserved foods, and when the contents are heated and cooked, the canned foods are opened and the contents are cooked. Further, the contents are contained in a mixed state without being divided.

[0003]

However, since the contents are mixed in advance in the above-mentioned canned goods, it is possible to improve the commercial value by mixing the contents at the time of heating, as compared with simply heating such a mixture. In some cases, conventional canned food cannot meet the above requirements.

Further, the inside of the can is partitioned by a partition member that melts when the temperature rises, the contents are separated and stored, and the partition member is melted to release the partition when heated. Although canned can be considered, the contents are sealed and then heat-treated at a temperature and time according to the contents for sterilization. Depending on the type of contents, the compartment is released during heat sterilization. There is a risk that

In view of the above circumstances, the present invention has an object to provide a canned food for heating in which the contents of the canned food can be sorted and stored even after the sterilization step and the sorting can be released during heating and use. Is.

[0006]

In the heating can of the present invention for solving the above-mentioned problems, the inside of a heat-resistant can main body having an opening portion formed in the upper portion is divided into upper and lower accommodating portions by an elastic film, and the lower portion is A liquid content such as water is contained in the upper part separately from the other content, and further, above the elastic film, the elastic film bulged and deformed when the can body is heated is contacted to rupture the elastic film. It is characterized in that a needle-shaped member is installed.

[0007] It is preferable to precharge by enclosing carbon dioxide gas or nitrogen gas in the upper accommodation part, or to mix carbon dioxide gas or alcohol in the liquid content of the lower accommodation part. You may do so.

[0008]

As described above, in the canned food for heating according to the present invention, the inside of the heat-resistant can body is divided into the upper and lower storage portions by the elastic film, and the liquid content such as water and the other content are separately stored. When heat sterilization is performed after enclosing the contents, the pressure difference between the storage parts on both sides partitioned by the elastic film is small and the elastic film is not deformed so much that it is ruptured by the needle-shaped member. Without heating, it is preserved in a state where the compartment is maintained even after heating. On the other hand, at the time of use, the container below the elastic film is sealed and the container above it is opened as the canned food is heated in an opened state. It bulges and deforms, breaks by contacting the needle-shaped member and bursts, and the contents contained in the upper container drop into the liquid contents to mix and cook, etc. ..

If carbon dioxide gas, nitrogen gas, or the like is sealed in the upper container and pre-pressurized, the amount of upward deformation of the elastic film during sterilization heating is reduced, and a higher temperature sterilization process can be performed. On the other hand, if carbon dioxide, alcohol, or the like is mixed into the liquid content of the lower storage portion, the processing temperature in the sterilization step is lowered, and the amount of upward deformation of the elastic film is reduced. The elastic membrane compartment can be maintained.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a canned food for heating according to the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view showing the basic structure of a canister with a burner using the canned food for heating of the present embodiment, and FIG. 2 is a partially cutaway perspective view showing an example of its appearance.

In the canned product with a burner, a cylindrical outer case 2 which is basically open at least at the upper end, and a gap 4 in which combustion gas rises are formed between the outer case 2 and the outer case 2 inside the upper case. Then, the opening portion 6a is accommodated and fixed on the upper end surface.
A heating can 6 composed of a cylindrical heat-resistant can body 6c having a lid 6b having a (opening tab), and an ignition means housed and fixed inside the lower part of the outer case 2 so as to heat the can 6. And a fuel tank 12 fixed inside the lower part of the outer case 2 so as to supply fuel to the burner 10. The outer case 2 includes the burner 10.
The vent 10 has a vent 2a for supplying external air and an opening 2b for operating the ignition means 8 from the outside.

Also, the ignition means 8 in the outer case 2
The opening 2b for operating the burner 10 from the outside is further provided with a scale for confirming the amount of residual fuel in the window 14 and the fuel tank 12 so that it is possible to confirm from outside whether the flame of the burner 10 is burning. It has a window 16 (see FIG. 2).

In the heating can 6, the diaphragm-like elastic film 5 having rubber elasticity is fixed to the inner peripheral surface of the heat-resistant can body 6c,
The inside of the can body 6c is divided into upper and lower storage portions 7a, 7b, the liquid content 20 (eg, water, drinking liquid, etc.) is stored and sealed in the lower storage portion 7b, and the upper storage portion 7a is A solid content 21 (for example, instant coffee, soup stock, tea bag, tea leaves, noodles, etc.) is contained and sealed.

If necessary, carbon dioxide gas, nitrogen gas, or the like is sealed in the upper housing portion 7a, and the pressure in the upper housing portion 7a is preloaded so as to be higher than the pressure in the lower housing portion 7b. Alternatively, carbon dioxide gas, alcohol, or the like is mixed into the liquid content of the lower containing portion 7b. Also, the lower housing
When carbon dioxide gas, nitrogen gas, or the like is sealed in 7a, carbon dioxide gas, nitrogen gas, or the like may be sealed in the upper housing portion 7a with a difference such that the pressure becomes higher than this pressure.

Further, a needle-like member 22 having a sharp tip downward is provided above the elastic film 5 by a predetermined distance. In this needle-shaped member 22, the rod-shaped support portion 23 has a can body.
It is arranged in the diametrical direction of 6c and is attached to the lower surface of this support portion 23. The shape and mounting structure of the needle-shaped member 22 can be appropriately changed in design. The contents 21 of the upper storage portion 7a are actually stored in a state of being placed on the elastic film 5 avoiding the vicinity of the needle-shaped member 22.

At the tip position of the needle-shaped member 22, the heating can 6 is heated by the burner 10 with the opening 6a opened and the upper housing 7a opened to the atmosphere as described later.
The temperature of the liquid content 20 rises to a predetermined temperature (for example, 90 ° C.), and as the pressure of the lower containing portion 7b rises, the elastic film 5
Is provided at a position where it will contact and burst when deformed so as to bulge upward as shown by the chain line, and the actual position may be changed according to the deformation characteristics of the elastic film 5, the distance from the center, and the like. Is set.

Further, between the outer peripheral surface of the outer case 2 and the can main body 6c of the canned product 6, a gap 4 for combustion gas to rise is formed. A means for fixing the can body 6c is also provided.
That is, as shown in the horizontal cross section in FIG. 3, a vertically extending corrugated partition plate 9 is provided between the outer case 2 and the can body 6c. The corrugated partition plate 9 is shown in FIGS. As shown,
It is formed to extend below the lower end of the can body 6c.
At this time, the partition plate 9 has a function of fixing the both, and the space 9a inside the corrugated shape of the partition plate 9 becomes the gap 4 in which the combustion gas rises. The partition plate 9 may have a corrugated shape including a curved surface portion as shown in the figure, or may have a triangular wave shape bent in a planar shape.

As the ignition means 8 of the burner, it is practically preferable to employ a piezo type automatic ignition device because of its simplicity and the like. Further, it is desirable for safety that the burner 10 is equipped with a safety device that automatically shuts off the fuel supply to the burner 10 when the flame is extinguished.

The operation of the above embodiment will be described.
Immediately after the cans 6 are filled with 0 and 21, the liquid contents 20 and the solid contents are stored in the storage portions 7a and 7b partitioned by the elastic film 5.
21 and 2 are separately housed, and carbon dioxide gas or nitrogen gas is housed in the upper housing 7a or both housings by changing the pressure as required.
The liquid contents 20 in the lower containing portion 7b are filled with carbon dioxide gas, alcohol, etc.

During heating in the sterilization process, the canned product 6 is in an unopened state, the upper and lower storage portions 7a, 7b are both in a sealed state, and the pressure difference between the upper and lower storage portions 7a, 7b according to the temperature rise is small.
The elastic film 5 is not deformed so much that the elastic film 5 does not come into contact with the needle-shaped member 22 and explode, and the elastic film 5 is stored in a state where the compartment is maintained even after heating.

In particular, if carbon dioxide or the like is sealed in the upper container 7a to increase the internal pressure thereof, the temperature during sterilization heating is high, and the lower partial pressure of the liquid contents 20 in the lower container 7b increases. Even when the pressure increases, the amount of upward deformation of the elastic film 5 is reduced by the preload to prevent the elastic film 5 from bursting, and the compartment accommodation can be reliably maintained even in the sterilization process at a higher temperature. Further, when carbon dioxide gas, alcohol, or the like is mixed in the liquid content 20 in the lower containing portion 7b, the required heating temperature in the sterilization step that must be performed corresponding to this content can be lowered, and this sterilization can be performed. As the temperature decreases, the amount of upward deformation of the elastic film 5 decreases. When the inner pressure of the lower housing portion 7b is increased by enclosing the carbon dioxide gas or the like, the sterilization temperature is lowered by enclosing the carbon dioxide gas or the like in the upper housing portion 7a at a higher pressure. Combined with this, it is possible to more reliably prevent the elastic film 5 from rupturing in the sterilization step.

On the other hand, when the canned product 6 is used, before it is heated, the opening 6a is first operated to bring the canned product 6 into an opened state, whereby the accommodating part 7b below the elastic film 5 is in a sealed state. As it is, the upper accommodation portion 7a is open to the atmosphere. Then, the heating is performed directly from the bottom of the can body 6c by the flame that is ignited and ejected from the burner 10.
Since the lower end of the partition plate 9 is formed lower than the bottom of the can body 6c, the hot air from the flame of the burner 10 rises only in the space 9a inside the partition plate 9 facing the peripheral wall of the can body 6c. Then, the can 6 is efficiently heated, and the temperature rise of the outer case 2 is suppressed.

The liquid contents 20 are heated by the burner 10 described above.
When the temperature rises, the elastic film 5 is bulged and deformed upward due to the pressure increase in the sealed lower housing portion 7b, and when the deformation increases and comes into contact with the needle-shaped member 22, the tension increases due to the deformation. The elastic membrane 5 that is ruptured instantly releases the division of the contents 20 and 21 from each other, and the contents 21 contained in the upper containing portion 7a fall into the liquid contents 20. Are mixed and cooked.

The canned food for heating according to the present invention has a very wide range of applications, and its contents include noodles such as cup ramen, foods such as rice, miso soup and soup, and beverages such as coffee, tea and milk. Can also be applied to.

[0025]

The canned food for heating according to the present invention, in the unopened storage state until heating, the contents are accommodated in a separated state by the elastic membrane even after the sterilization process, and the elastic membrane is the needle-shaped member in the opened heating state. By contacting with and rupturing to release the compartment so that the contents are mixed, it is possible to easily obtain a storage state and a heating state suitable for the contents.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing the basic structure of a can with a burner using a heating can according to a first embodiment of the present invention.

FIG. 2 is a partially cutaway perspective view showing an example of the external appearance of the canister with a burner shown in FIG.

FIG. 3 is a schematic horizontal cross-sectional view showing an example of the structure between the outer case and the can of the can with burner in FIG.

[Explanation of symbols]

 5 Elastic film 6 Canned food for heating 6a Opening part 6c Can body 7a, 7b Storage part 20,21 Contents 22 Needle-like member 23 Support part

Claims (1)

[Claims] 1. The inside of a heat-resistant can main body having an opening portion formed in the upper portion is divided into upper and lower storage portions by an elastic film, and liquid contents such as water are separated in the lower portion and other contents are separated in the upper portion. In addition, a needle-shaped member is provided above the elastic film and ruptures the elastic film by contacting the elastic film that is bulged and deformed when the can body is heated. Canned food.