JP2004123199A - Heating container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heating container which can be heated by direct fire and also through electromagnetic induction. <P>SOLUTION: This heating container has a side portion 2 and a bottom portion 3 forming a container together with the side portion 2. The side portion 2 and the bottom portion 3 contain aluminum layers 4, 5 containing aluminum. The bottom portion 3 includes a heating layer 6 laminated on the aluminum layers 4, 5. The heating layer 6 generates heat by an electromagnetic heating cooker. Such a heating container 1 as above can be applied to a gas range against a direct fire and heated and also heated through the electromagnetic heating type cooker. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a heating container, and more particularly to a heating container used when transporting an object to be heated and used when heating the object to be heated.
[0002]
[Prior art]
Noodles of frozen food packaged in aluminum containers are on the market. The aluminum container is formed of aluminum foil and is used to heat frozen foods by direct heat using a gas range. According to such frozen food, the purchaser does not need to separately prepare a pot when heating the frozen food, which is convenient. A more convenient aluminum container is desired.
[0003]
A known cooking utensil disclosed in Japanese Patent Application Laid-Open No. 8-56844 is formed by combining a thin plate of iron or stainless steel, which generates electromagnetic induction, with aluminum by a pressure joining method only at a necessary portion. Such a cooking utensil can heat an internal heating target by direct heat using a gas range, and can also use an electromagnetic heating type cooker.
[0004]
[Patent Document 1]
JP-A-8-56844 [0005]
[Problems to be solved by the invention]
An object of the present invention is to provide a more convenient heating container.
Another object of the present invention is to provide a heating container that can be heated by direct heat using a gas range and that can be heated using an electromagnetic heating cooker.
Still another object of the present invention is to provide a heating vessel that can be heated over an open flame using a gas range, can be heated using an electromagnetic heating cooker, and is less expensive. is there.
[0006]
[Means for Solving the Problems]
Hereinafter, means for solving the problem will be described using the numbers and symbols used in [Embodiments of the invention] in parentheses. These numbers and symbols are added to clarify the correspondence between the description of [Claims] and the description of [Embodiments], and are described in [Claims]. It should not be used to interpret the technical scope of a given invention.
[0007]
The heating container (1) (11) (21) according to the invention comprises a side part (2) (12) (22) and a bottom part (3) which together with the side parts (2) (12) (22) forms a container. (13) and (23). The side portions (2) (12) (22) and the bottom portions (3) (13) (23) include aluminum layers (4, 5) (14, 15) (24) containing aluminum. The bottom portions (3) (13) (23) include heating layers (6) (16) (26) laminated to the aluminum layers (4, 5) (14, 15) (23). The heating layers (6), (16), and (26) generate heat by an electromagnetic heating cooker. The electromagnetic heating type cooker generates eddy currents in the heating layers (6), (16), and (26) by electromagnetic induction to heat them. The heating containers (1), (11), and (21) can be heated by direct heat using a gas range, and can be heated using an electromagnetic heating cooker.
[0008]
It is preferable that the heating containers (1), (11), and (21) be put on the market with the object to be heated placed inside the container. At this time, the aluminum layers (4, 5) (14, 15) (24) are formed of aluminum foil. Food items are exemplified as the heating target.
[0009]
The heating layers (6), (16) and (26) are made of high-purity iron containing 99.95% by mass or more of iron. Such high-purity iron has a higher magnetic permeability than soft iron sold on the market, and can reduce the thickness of the layer. High-purity iron is preferable because it is less rusted than ordinary steel that generates heat by an electromagnetic heating cooker. High-purity iron is further preferred because it has a softer hardness than soft iron and can be easily processed into a container shape.
[0010]
The aluminum layers (4, 5) include an inner aluminum layer (4) and an outer aluminum layer (5). The heating layer (6) is sandwiched between the inner aluminum layer (4) and the outer aluminum layer (5). The side part (2) contains a heating layer (6). Such a heating vessel (1) can be easily manufactured from a clad material formed by a heating layer (6) sandwiched between an inner aluminum layer (4) and an outer aluminum layer (5). In such a heating vessel (1), since the heating layer (6) is not exposed to the outside, the heating layer (16) does not easily rust.
[0011]
The aluminum layers (14, 15) include an inner aluminum layer (14) and an outer aluminum layer (15). The heating layer (16) is sandwiched between an inner aluminum layer (14) and an outer aluminum layer (15), and the side portions (12) do not include the heating layer (16). In such a heating vessel (11), since the heating layer (6) is not exposed to the outside, the heating layer (16) is hardly rusted. Such a heating vessel (11) further has a smaller amount of high-purity iron, is lighter, and has a lower manufacturing cost than the heating vessel (1) formed of a clad material.
[0012]
The heating layer (26) is preferably exposed to the outside. That is, the heating layer is exposed outside the container or exposed inside the container. Such a heating container has a structure in which the heating layers (6) and (16) are sandwiched between the inner aluminum layers (4) and (14) and the outer aluminum layers (5) and (15). It can be easily manufactured and the manufacturing cost is low.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of a heating container according to the present invention will be described with reference to the drawings. The heating vessel 1 is formed from a side part 2 and a bottom part 3, as shown in FIG. The side part 2 forms a cylinder and substantially forms the side surface of a column (a cylinder or a prism). The bottom part 3 is integrally joined to the side part 2 and closes one end of the cylinder of the side part 2 to form a container with the side part 2. At this time, it is preferable that the side portion 2 has a slightly smaller bottom area on the side joined to the bottom portion 3 than on the opposite side.
[0014]
The side part 2 and the bottom part 3 are formed from a plurality of layers. The plurality of layers are formed of an inner aluminum layer 4, an outer aluminum layer 5, and a high-purity iron layer 6. The inner aluminum layer 4 is arranged inside the heating vessel 1. The outer aluminum layer 5 is arranged outside the heating vessel 1. Inner aluminum layer 4 and outer aluminum layer 5 are each formed of pure aluminum or an aluminum alloy, and each have a thickness of 100 μm or less. The high-purity iron layer 6 is sandwiched between the inner aluminum layer 4 and the outer aluminum layer 5. The high-purity iron layer 6 is formed of high-purity iron containing 99.95% by mass or more of iron, and has a thickness of 5 μm to 100 μm.
[0015]
In order to manufacture the heating container 1, first, a thin plate having a thickness of 100 μm formed of high-purity iron is manufactured. Next, two aluminum foils each formed of an aluminum alloy and having a thickness of 100 μm are manufactured. The thin plate is sandwiched between two aluminum foils and rolled to produce a clad material. The clad material is a material in which a high-purity iron layer formed of high-purity iron is mechanically joined and laminated between two aluminum layers. The clad material is cut into an appropriate size, processed, and formed in the heating vessel 1.
[0016]
The soft iron sheet sold on the market has the thinnest thickness of 50 μm to 100 μm. High-purity iron has good workability and can be easily formed on a thin plate having a thickness of 5 μm to 100 μm as compared with soft iron. At this time, the heating container 1 is preferable because it is light.
[0017]
In the heating container 1, food items exemplified by frozen udon are put, and the outside thereof is further packaged with a resin and sold on the market. The purchaser can remove the resin on the outside and heat the foodstuff inside by heating the heating container 1 directly using a gas range, or heat the heating container 1 using an electromagnetic heating cooker. To heat the foodstuffs inside.
[0018]
FIG. 2 shows another embodiment of the heating container according to the present invention. The heating vessel 11 is formed from a side part 12 and a bottom part 13. The side portion 12 forms a cylinder and generally forms the side surface of a column (a cylinder or a prism). The bottom portion 13 is integrally joined to the side portion 12 and closes one end of the cylinder of the side portion 12 to form a container with the side portion 12. At this time, it is preferable that the side portion 12 has a slightly smaller bottom area on the side joined to the bottom portion 13 than on the opposite side.
[0019]
The side portions 12 are formed from pure aluminum or an aluminum alloy.
The bottom portion 13 is formed from a plurality of layers. The plurality of layers are formed from an inner aluminum layer 14, an outer aluminum layer 15, and a high-purity iron layer 16. The inner aluminum layer 14 is disposed inside the heating vessel 11. The outer aluminum layer 15 is disposed outside the heating vessel 11. Inner aluminum layer 14 and outer aluminum layer 15 are each formed of pure aluminum or an aluminum alloy, and each have a thickness of 100 μm or less. The high-purity iron layer 16 is sandwiched between the inner aluminum layer 14 and the outer aluminum layer 15. The high-purity iron layer 16 is formed of high-purity iron containing 99.95% by mass or more of iron, and has a thickness of 5 μm to 100 μm.
[0020]
To manufacture the heating container 11, first, a thin plate having a thickness of 100 μm formed of high-purity iron is manufactured. The sheet is cut into a figure that is congruent with the bottom part 13 of the heating vessel 11. Next, two aluminum foils each formed of an aluminum alloy and having a thickness of 100 μm are manufactured. The thin plate is pressed between two aluminum foils. The pressed material is cut into a suitable size and processed so that the thin plate becomes the bottom portion 13 of the heating vessel 1.
[0021]
High-purity iron is more expensive than aluminum. The heating container 11 uses less high-purity iron and has a lower manufacturing cost than the heating container 1 in the above-described embodiment.
[0022]
The food container exemplified by the frozen udon is put in the heating container 11, and the outside thereof is packaged with a resin and sold on the market. The purchaser can remove the resin on the outside and heat the food container by directly heating the heating container 11 using a gas range, or heat the heating container 11 using an electromagnetic heating cooker. To heat the foodstuffs inside.
[0023]
FIG. 3 shows a further embodiment of the heating vessel according to the invention. The heating vessel 21 is formed from a side part 22 and a bottom part 23. The side portion 22 forms a cylinder and generally forms the side surface of a column (a cylinder or a prism). The bottom portion 23 is integrally joined to the side portion 22 and forms a container together with the side portion 22 by closing one end of a cylinder of the side portion 22. At this time, it is preferable that the side portion 22 has a slightly smaller bottom area on the side joined to the bottom portion 23 than on the opposite side.
[0024]
The side portions 22 are formed from pure aluminum or an aluminum alloy.
The bottom portion 23 is formed from a plurality of layers. The plurality of layers are formed from an aluminum layer 24 and a high-purity iron layer 26. The aluminum layer 24 is disposed inside the heating container 21. The aluminum layer 24 is formed of pure aluminum or an aluminum alloy, and has a thickness of 100 μm or less. The high-purity iron layer 26 is arranged on the outside of the heating vessel 21, is joined to the aluminum layer 24 and is exposed to the outside. The high-purity iron layer 26 is formed of high-purity iron containing 99.95% by mass or more of iron, and has a thickness of 5 μm to 100 μm. High-purity iron is less likely to rust than ordinary steel, and the heating vessel 21 can be handled in the same manner as the heating vessels 1 and 11.
[0025]
In order to manufacture the heating container 21, first, a container formed of aluminum foil formed of aluminum is manufactured. Next, a high-purity iron thin plate having a thickness of 100 μm formed from high-purity iron is manufactured, and the high-purity iron thin plate is cut into a figure congruent with the bottom portion 23. In the container, the high-purity iron thin plate is crimped to the bottom portion and joined to an aluminum foil in the same manner, whereby the heating container 21 is manufactured. Such a manufacturing method eliminates the step of pressing a high-purity iron thin plate between two aluminum foils and pressing the same, and can easily manufacture a heating container.
[0026]
【The invention's effect】
The heating container according to the present invention can be heated over an open flame using a gas range, and can be heated using an electromagnetic heating cooker.
[Brief description of the drawings]
FIG. 1 is a sectional view of an embodiment of a heating container according to the present invention.
FIG. 2 is a sectional view showing another embodiment of the heating container according to the present invention.
FIG. 3 is a sectional view showing still another embodiment of the heating container according to the present invention.
[Explanation of symbols]
1: heating container 2: side portion 3: bottom portion 4: inner aluminum layer 5: outer aluminum layer 6: high-purity iron layer 11: heating container 12: side portion 13: bottom portion 14: inner aluminum layer 15: outer aluminum layer 16: high-purity iron layer 21: heating vessel 22: side part 23: bottom part 24: aluminum layer 26: high-purity iron layer

Claims (6)

Side parts,
A bottom portion forming a container with the side portions,
The side portion and the bottom portion include an aluminum layer containing aluminum,
The bottom portion includes a heating layer laminated to the aluminum layer,
The heating layer is a heating container that generates heat by an electromagnetic heating cooker. In claim 1,
The heating container is characterized in that a heating target is placed inside the container and sold on the market. In any of claim 1 or claim 2,
The said heating layer is formed from high-purity iron containing 99.95 mass% or more of iron, The heating container characterized by the above-mentioned. In claim 3,
The aluminum layer includes an inner aluminum layer and an outer aluminum layer, the heating layer is sandwiched between the inner aluminum layer and the outer aluminum layer,
The heating container, wherein the side portion includes the heating layer. In claim 3,
The aluminum layer includes an inner aluminum layer and an outer aluminum layer, the heating layer is sandwiched between the inner aluminum layer and the outer aluminum layer,
The heating container, wherein the side portion does not include the heating layer. In claim 3,
The heating container is characterized in that the heating layer is exposed to the outside.

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