JPH0642854B2 - Heating container - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heating container (eg, kettle) capable of containing and heating an object to be heated such as water.

[0002]

2. Description of the Related Art FIG. 6 is a sectional view showing a schematic structure of a kettle which is a typical example of a heating container. As shown in FIG. 6, the conventional kettle has an object W to be heated such as water.
A main body 10A for accommodating and heating / keeping heat, and this main body 1
It is generally configured to include a lid 21, which is detachably attached to the opening of the upper part of 0A, a spout 22, and a handle 23. In order to heat and keep the object W to be heated using the kettle, first, the object W to be heated is poured into the main body 10A and then heat is applied from the bottom surface of the main body 10A so that the object W to be heated is heated. When the temperature reaches a predetermined temperature, heating is stopped and the temperature is maintained.

[0003]

By the way, the object W to be heated which has been once heated to a predetermined temperature using the kettle described above.
Also, heat is taken to the outside through the wall surface portion 11A of the main body 10A and the like, and the temperature drops. Especially, the main body 10A of the kettle is
When it is formed of a material having a high thermal conductivity (for example, copper) so that it can be quickly heated, the object W to be heated in the main body 10A can be cooled more easily.

After heating, the kettle body 10A is
If, for example, it is placed directly on the sink without pulling the insole or the like, the heat will escape through the sink, and the object W to be heated can be cooled more easily. Therefore, it is often necessary to reheat the object to be heated W each time it is used, which is complicated and uneconomical.

Therefore, in order to solve the above-mentioned drawbacks,
It is conceivable that the wall surface portion 11A of the kettle body 10A and the like are made thick to make it difficult for heat to escape. However, in this case, the kettle becomes heavy and the handleability is deteriorated, and it is difficult to heat the kettle.

In view of the above circumstances, an object of the present invention is to efficiently heat an object to be heated such as water contained in the main body without deteriorating the handleability, and it is effective regardless of the mounting place.
It is to provide a heating container that can keep warm efficiently .

[0007]

DISCLOSURE OF THE INVENTION The present invention is a heating container having a main body capable of containing an object to be heated such as water and heating / keeping heat, at least the wall surface portion of the main body ,
An inner closed air layer should be formed between this inner wall surface and
Between the intermediate wall surface provided on the
From the outer wall surface provided so that the side air layer is formed
Configured, in the lower part of the outer wall surface, provided with a support portion having a predetermined distance and protruding and opening from the bottom surface portion in contact with the object to be heated, first to release the air that has thermal expansion of the outer air layer prior SL body Rutotomoni provided an air escape portion, the intermediate wall portion
The heat expansion air in the inner closed air layer to the outer air layer.
A second air escape section is provided to remove the
Attach the saucer so that it covers the opening, and attach it to the outside
The air layer is shielded from heat from the outside and there is no space between it and the bottom.
It is characterized in that an air layer is formed .

[0008]

[Action] In the present invention having the above structure, To that Nessu pressurizing an object to be heated such as water accommodated in the body to a predetermined temperature, from the support portion
After removing the saucer for heat retention, the main body is heated (for example,
Place it on a gas stove) and apply heat from the bottom.
Then, stop the heating when the object to be heated has reached a predetermined temperature
You.

[0009] At this time, air in the inner closed air layer in the body wall surface portion is thermally expanded, the outer air through the second air escape portion
Since it is released into the air layer, the internal pressure of the inner closed air layer is
There is nothing too big. Also, the sky in the outer air layer
Since the air is also released to the outside through the first air escape section,
Again, the internal pressure does not become excessive. Therefore, during heating, the wall surface of the main body is not abnormally deformed by the internal pressure of each air layer.

The object to be heated housed in the main body is
Is a triple-structured wall with two air layers
Air that has been heat-insulated and that has been thermally expanded in the inner closed air layer
Air is released into the outer air layer and heats the outer air layer.
Because it helps, it can be heated efficiently. Further, since each air layer is configured as a heat insulating layer to block heat, the weight can be easily reduced and the handleability does not deteriorate .

[0011] In the case of thermal insulation after pressure heat receiving the support portion
Attach the plate. This allows the space between the bottom of the main unit and the saucer to
A new air layer is formed at. Therefore, each sky mentioned above
In combination with the heat retention effect of the air layer, what kind of place the main body is
(E.g., gas stove on) can effectively suppress the heat from escaping even placed on.

Therefore, an object to be heated such as water contained in the main body can be efficiently heated without deteriorating handleability .
In addition to being able to maintain the temperature, it is possible to efficiently maintain the temperature regardless of the placement place .

[0013]

An embodiment of the present invention will be described with reference to the drawings. As shown in FIGS. 1 to 4, the heating container according to the present invention (a kettle in this embodiment) includes a main body 10, a lid 21, a spout 22 ,
It is configured to include a handle 23 and a tray 31 for keeping heat. The same components as those shown in the conventional example ( FIG. 6 ) are designated by the same reference numerals, and the description thereof will be omitted or simplified.

Here, the main body 10 has at least the wall surface portion 1.
1 has a triple wall structure having two air layers in the middle. In the present embodiment, only the wall surface portion 11 of the main body 10 has a triple wall structure in consideration of thermal efficiency and workability. Specifically, the wall surface portion 11 of the main body 10 has an inner wall surface portion 12
And an outer wall surface portion 14 provided at a predetermined distance from the inner wall surface portion 12 and an intermediate wall surface portion 13 provided between both wall surface portions 12 and 14, and between the outer wall surface portion 14 and the intermediate wall surface portion 13. An outer air layer A is formed on the inner wall surface portion 13 and an inner closed air layer B is formed between the intermediate wall surface portion 13 and the inner wall surface portion 12.

The wall surfaces 12, 13, 14 are made of the same or different materials (different materials in this embodiment). Specifically, the inner wall surface portion 12 (and the bottom surface portion 15) of the main body 10 is formed of copper (heat conductivity; 332 kcal / mh ° C.) having high heat conductivity so that it can be quickly heated. Further, the intermediate wall surface portion 13 and the outer wall surface portion 14 of the main body 10 are made of stainless steel (heat conductivity; 14 kcal / mh ° C.) in order to improve heat retention. As the material for forming the main body 10 and the like, various materials such as metal materials (stainless steel, aluminum, copper, etc.), pottery, enameled metal materials and the like can be cited.

Further, at the lower portion of the outer wall surface portion 14 of the main body 10, an opening 17 is projected from the bottom surface portion 15 which comes into contact with a liquid or solid object (water in this embodiment) W by a predetermined distance H. A supporting portion 16 having the same is provided. In this embodiment, the support portion 16 is provided integrally with the outer wall surface portion 14, and the opening portion 17 of the support portion 16 is
As shown in FIGS. 1 and 2, the diameter of the bottom portion 15 is larger than that of the bottom portion 15 so that the bottom portion 15 can be directly heated.

Further, in the main body 10, the air layers A,
Air escape section (1 for releasing the heat-expanded air inside)
8, 19) are provided. In the present embodiment, the air escape portion has a first air escape portion 18 for escaping the thermally expanded air in the outer air layer A and a second air escape portion 18 for escaping the thermally expanded air in the inner closed air layer B. Air escape section 19
It consists of and.

Specifically, the first air escape portion 18 is formed in an annular shape between the outer wall surface portion 14 and the intermediate wall surface portion 13 at the lower portion of the main body 10 and serves to remove the thermally expanded air in the outer air layer A. It is configured to escape to the outside through the opening 17 of the support portion 16 and the like. The second air escape portion 19, comprises an intermediate wall portion 13 hole 19a provided in an upper portion of the main body 10, the outer-side air heat inflated air inside closed air layer B through the hole 19 a It is configured to escape to the layer A. More specifically, the holes 19a are pores (holes having a diameter of about 2 mm in this embodiment).

Further, in FIG. 1, 31 in the pan for thermal insulation, and is detachably attached to the lower portion of the body 10. Here, when the saucer 31 is attached to the main body 10, the opening 17 of the support portion 16 of the main body 10 is held by the saucer 31.
Are coated. Therefore, Rutotomoni outer formed air layer C is between the bottom portion 15 and the pan 31 of the main body 10
Heat of the air layer A is shielded from the outside, and heat is effectively prevented from escaping through the bottom surface portion 15 and the like.

Next, the operation will be described. To that Nessu pressure to the heated object W to a predetermined temperature, receiving for thermal insulation from the support portion 16
After removing the dish 31, the main body 1 containing the object W to be heated
0 was loaded on a gas stove (not shown), Ru applying heat from the bottom portion 15 and the like of it. Then, that abolish stop the heating when the object to be heated W has reached a predetermined temperature.

At this time, the opening 1 of the supporting portion 16 of the main body 10
Since 7 has a larger diameter than the bottom surface portion 15, the bottom surface portion 15 can be directly heated. Therefore, the object to be heated can be efficiently heated. At this time, the air in each of the air layers A and B formed on the wall surface portion 11 of the main body 10 thermally expands, but the first and second air escape portions 18 and 1 are formed.
It is escaped to the outside from 9. Therefore, when heating, the main body 1
The wall portion 11 of 0 and the like will not be abnormally deformed by the pressure of the thermally expanded air in the air layers A and B.

Here, the air expanded in the air layer B
Air is released into the air layer A and heats the air layer A.
To help. Further, the object to be heated W housed in the main body 10
Is the air layers A and B (the thermal conductivity of air; 0.02
because it is thermally blocked by the wall portion 11 or the like of a triple structure having kcal / mh ℃), it can efficiently pressurized Nessu Rukoto. Further, since the air layers A and B are used as heat insulating layers to block heat, the weight can be easily reduced and the handleability does not deteriorate.

Further, since the saucer 31 is detachably attached to the lower portion of the main body 10, the saucer 31 is detached from the main body 10 at the time of heating and the bottom portion 1 of the main body 10 is removed.
The heat can be directly applied to 5, and the object to be heated can be efficiently heated.

When the tray 31 is attached to the main body 10 when the temperature is kept warm, the opening 17 of the supporting portion 16 is covered and the air layer A (and further the air layer B) is closed. As a result, the object W to be heated can be effectively kept warm by the air (warm air) enclosed in the air layers A and B. Moreover, since the air layer C is formed between the tray 31 and the bottom surface portion 15 by the support portion 16, the temperature can be kept more efficiently.

However, according to this embodiment, the main body 10
The wall surface portion 11 of the inner wall surface 12, and the inner wall surface 12
Was provided so that an inner closed air layer B was formed between
An outer space is provided between the intermediate wall surface portion 13 and the intermediate wall surface portion 13.
Such as the outer wall surface portion 14 provided so that the air layer A is formed
And et arrangement, the bottom of the outer wall surface portions 14, the supporting portion 16 having a predetermined distance H by projecting and opening 17 from the bottom surface portion 15 which contacts the object to be heated is provided in the body 10 and thermal expansion of the outer air layer A The first air escape portion (1 for releasing air)
Rutotomoni provided 7), the inner closed air in the intermediate wall portion 13
For releasing the heat-expanded air in layer B to the outer air layer A
The second air escape portion 19 is provided, and the support portion 16 is provided with a heat-retaining receiving portion.
Since the only dish 31 was detachably attached to the <br/> configured to cover the opening 17, it is easy to handle physician, it is possible to efficiently heat an object to be heated W in the body 10, the mounting Storage
It can keep warm efficiently regardless of the place .

In the above embodiment, the first air escape portion 18 is formed in an annular shape between the outer wall surface portion 14 and the intermediate wall surface portion 13 at the lower portion of the main body 10. However, as shown in FIG. The first air escape portion 18 may be formed by closing (that is, the lower portion of the air layer A is also closed like the air layer B) and, instead, providing an air escape hole 18a in the upper portion of the outer wall surface portion 14. . In addition, the hole 18 for air escape
The shapes and the number of installed a and 19a can be arbitrarily selected within a range that does not impair the functions of the air layers A and B.

Although only the wall surface portion 11 of the kettle body 10 has the triple wall structure, the other portions may have the triple structure. For example, in a kettle of the type in which the upper portion of the main body 10 is not opened and water is poured into the main body 10 through the spout 22, the upper portion of the main body 10 may also have a triple structure. Further, the spout 22 of the main body 10 can also have a triple wall structure.

Further, the inner wall portion 12 and the outer wall surface portion 14 which forms the wall portion 11 of the main body 10 (intermediate wall portion 13) has been formed from different materials or may be formed from similar materials.

Further, the opening 1 of the supporting portion 16 of the main body 10
7 is formed in a circular shape having a diameter larger than that of the bottom surface portion 15, but its form can be arbitrarily selected as long as the bottom surface portion 15 can be heated with high thermal efficiency. For example,
The opening 17 may be formed in a circular shape having a diameter smaller than that of the bottom portion 15.

Furthermore, although the present invention is applied to kettles, it may be applied to other heating containers (eg, kettle, pan, etc.).

[0031]

According to the present invention, at least the wall surface portion of the main body is closed between the inner wall surface portion and the inner wall surface portion by the inside closed air.
The intermediate wall surface provided so that layers are formed, and
Provided so that an outer air layer is formed between the wall surface
Consist of a an outer wall surface portion, the lower portion of the outer wall surface, provided with a support portion having a predetermined distance and protruding and opening from the bottom surface portion in contact with the object to be heated, heat-expanded air in the outer air layer to the body the first air escape portion for releasing provided Rutotomo
In addition, the thermally expanded air in the inner closed air layer is
Providing a second air escape section for escape into the outer air layer,
A heat-retaining saucer can be attached to and detached from the support to cover the opening.
Since it is configured to be mounted on the body, the object to be heated such as water contained in the main body can be heated with good heat efficiency without deteriorating the handling property, and it can be affected by the mounting place.
It is possible to keep the heat efficiently .

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is a view taken along line Y in FIG.

FIG. 3 is an external view of an example.

FIG. 4 is a diagram showing a state in which a tray is attached to the main body.

FIG. 5 is a cross-sectional view showing a modified example.

FIG. 6 is a diagram showing a schematic configuration of a kettle, which is a typical example of a conventional heating container.

[Explanation of symbols]

10 Main body 11 Wall surface portion 12 Inner wall surface portion 13 Intermediate wall surface portion 14 Outer wall surface portion 16 Support portion 17 Opening portion 31 Saucepan

Claims (1)

[Claims] 1. A heating container having a main body capable of heating and retaining heat such as water to be heated, wherein at least the wall surface portion of the main body is provided with an inner wall surface portion and the inner wall portion.
Provided so that an inner closed air layer is formed between the
The outer air layer is formed between the intermediate wall surface part and the intermediate wall surface part.
And an outer wall surface portion provided so that
The bottom of the outer wall surface, only setting a support having only projecting and opening a predetermined distance from the bottom surface portion in contact with the object to be heated, first to release heat inflated air outside the air layer in the body
1 air escape portion provided Rutotomoni, inner closing the intermediate wall portion
To escape the heat-expanded air in the closed air layer to the outer air layer
The second air escape section of the
Attach it detachably to cover the opening and remove the outer air layer.
Insulates heat from the outside and forms an air layer between it and the bottom.
Heating container, characterized in that form have.