JPH1099212A - Heat insulating cooking vessel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To freely select the material for an inner vessel of a heat insulating cooking pot without generation of corrosion or rust. SOLUTION: An inner vessel 15 is stored inside an outer vessel 3 and can be taken out/in freely. The outer vessel 3 consists of an inner cylinder 5 and an outer cylinder 6 which are made of stainless steel, and a vacuum heat insulating layer 6 is formed between the cylinders. A coating layer made of such material as enamel, self-cleaning paint, or fluorocarbon resin, etc., is formed on the inner surface of the inner cylinder 5, or all over the outer surface of the inner vessel 15. Because of this coating layer, corrosion or rust caused by the contact of the inner cylinder 5 and the inner vessel 15 can be prevented even when a material other than stainless steel is used for the inner cylinders 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insulated cooking container which can be suitably used for a cooking method in which a semi-cooked food is kept warm by heating to obtain a finished cooked food.

[0002]

2. Description of the Related Art In this kind of insulated cooking container, as described in, for example, Japanese Utility Model Application Laid-Open No. 7-36949, an inner container for containing cooked goods is housed in an outer container having heat insulation. ing. The outer container is a vacuum double container in which a vacuum heat insulating layer is formed between the outer tube and the inner tube, and the material of the outer tube and the inner tube is stainless steel.

In the heat insulating cooking container described in the above publication, when the inner container is stored in the outer container, the handle base of the inner container is placed on the upper end of the outer container. The inner surface of the tube contacts the outer surface of the inner container. As described above, there is a contact portion between the inner container and the inner cylinder of the outer container, but when the inner container is made of a metal different from the inner cylinder,
Conventionally, corrosion or rust may occur at the contact area.
The inner container was made of the same stainless steel as the inner cylinder.

[0004]

As described above, in the conventional insulated cooking container, it is inevitable that the stainless steel constituting the inner cylinder of the outer container is in direct contact with the metal material constituting the inner container. In order to prevent the occurrence of corrosion and rust, there is a problem that the material of the inner container is limited to stainless steel, which is the same material as the outer container.

Accordingly, the present invention has been made in view of the above-mentioned conventional problems, and has as its object to provide an insulated cooking container in which the material of an inner container can be freely selected without causing corrosion or rust. And

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides an outer container having heat insulation, an inner container which is freely inserted into and removed from the outer container through an opening thereof. A heat-insulating cooking container comprising: a heat-insulating lid that closes an opening of the outer container in a state in which the inner container is housed, wherein at least one of the inner surface of the outer container and the outer surface of the inner container A coating is formed on the substrate.

Thus, the outer container and the inner container come into contact via the coating, and the base portion does not come into direct contact. Therefore, even if the outer container and the inner container are made of different kinds of metal materials, there is no problem of corrosion and rust, and the material of the inner container can be freely selected.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the first embodiment of the insulated cooking container of the present invention will be described.
An embodiment will be described with reference to FIGS. Reference numeral 1 denotes an insulated cooking container main body.
Is an outer container 3 having an opening 2 at the upper surface, and a synthetic resin bottom member 4 fitted and fixed to the outside of the bottom of the outer container 3.
And The outer container 3 is formed by forming a vacuum heat insulating layer 7 between an inner tube 5 and an outer tube 6 made of stainless steel, and has heat insulating properties. The inner cylinder 5 and the outer cylinder 6 are connected to each other at the upper end on the opening 2 side. Also,
At the bottom of the outer cylinder 6, a sealing lid 8 for sealing a hole used to make a vacuum between the inner cylinder 5 and the outer cylinder 6 is joined by means such as brazing. Further, a spacer 9 is fixed between the bottom central portion of the inner cylinder 5 and the bottom central portion of the outer cylinder 6 to keep a space therebetween. The inner surface of the inner cylinder 5 has an upper end 5a.
Enamel coating on the entire inner surface including
10 are formed. An upper frame 11 made of a synthetic resin is fixed to an upper portion of the outer periphery of the outer cylinder 6, and handles 12 are formed on both sides of the upper frame 11 so as to project outward.

Reference numeral 15 denotes a metal inner container into which food is put. The inner container 15 is housed in the outer container 3 through the opening 2 so as to be freely taken in and out. And
The inner container 15 has handles 17 on both sides of the upper part of the inner container body 16. These handles 17 are
A metal handle base 18 joined to the base 16 and the handle base 18
And a gripping portion 19 made of synthetic resin fixed to the front end portion. The handle base 18 is formed in a substantially inverted L-shape, and the inner container 15 is supported by placing the handle base 18 on the upper end 5a of the inner cylinder 5. In this state, the side surface of the inner container body 16 and the side surface of the inner cylinder 5 are generally in a non-contact state. On the other hand, both grip portions 19 are located above both handle portions 12 of the upper frame 11 of the outer container 3, respectively. Further, the upper surface opening of the inner container body 16 is closed by a detachable inner lid 20. This inner lid 20
Is provided with a knob 21 made of a synthetic resin at the center of the upper surface.

Reference numeral 26 denotes a lid member.
The outer container 3 is rotatably supported by the outer container 3, and the inner container 15 is stored in the outer container 3.
Is to close. Although the lid member 26 is made of a synthetic resin, a heat insulating material 28 is built in and has heat insulating properties. Reference numeral 29 denotes a clamp for holding the lid member 26 closed with respect to the outer container 3. Also, the lid member 26
With the closed, the grip 19 of the handle 17 of the inner container 15 is
It is located so as to protrude outward from the lid member 26.

Next, the operation of the above configuration will be described. When the inner container 15 is stored in the outer container 3, the metal handle base 18 of the inner container 15 is placed on the upper end 5 a of the inner cylinder 5 of the outer container 3, but the upper end 5 a of the inner cylinder 5 is included. Since the coating 10 is formed on the entire inner surface, the handle base 18 comes into contact with the coating 10, and the handle base 18 and the base portion of the inner cylinder 5 do not come into direct contact with each other. When the inner container 15 is put in and out of the outer container 3, the inner cylinder 5
The outer surface of the inner container body 16 may come into contact with the inner surface of the inner container. There is no contact.

Therefore, even if the inner container body 16 and the handle base 18 of the inner container 15 are made of a material other than stainless steel different from the inner cylinder 5, there is no problem of corrosion or rust caused by contact. . Thereby, as the material of the inner container 15, an appropriate material such as aluminum or a copper-based alloy other than stainless steel can be freely selected. That is, as the material of the inner container 15, a material that is cheaper than stainless steel, a material that is easier to process, a material that has excellent heat insulation,
Alternatively, an appropriate material such as a lighter material that is easy for the user to handle can be selected.

Next, a second embodiment of the insulated cooking container of the present invention will be described with reference to FIG. The heat-insulating cooking container of the second embodiment has the same configuration as the heat-insulating cooking container of the first embodiment except for the coating, and the same reference numerals are given to portions corresponding to those of the first embodiment. The description is omitted. In the second embodiment, the coating 31 is formed not on the inner surface of the inner cylinder 5 of the outer container 3 but on the entire outer surface of the inner container body 16 of the inner container 15 and the outer surface of the handle base 18. Also in the second embodiment, the inner cylinder 5 of the outer container 3 and the inner container body 16 and the handle base 18 of the inner container 15 are in contact with each other via the coating 31, and the base portion is not in direct contact. The same effects as in the first embodiment can be obtained. However,
In the second embodiment, since the coating 31 must be applied to both the inner container body 16 and the handle base 18, the first embodiment is more advantageous in manufacturing.

In the second embodiment, the coating may be applied not only to the outer surface of the inner container body 16 but also to the inner surface. When coating is applied to the inner surface of the inner container body 16 into which food is put, the effect of improving the cleaning property is great. Further, it is also possible to apply a coating to both the inner cylinder 5 and the inner container 15 by combining the configurations of the above two embodiments.

Next, a third embodiment of the insulated cooking container of the present invention will be described with reference to FIGS. 51
Is an insulated cooking container main body, the insulated cooking container main body 51 has an outer container 53 having an upper surface as an opening 52, and a synthetic resin bottom member 54 fitted and fixed to the bottom outside of the outer container 53. It has. The outer container 53 has an inner cylinder 55 made of stainless steel.
And a vacuum heat insulating layer 57 formed between the outer cylinder 56 and
Has heat insulation. Also, the bottom center of the inner cylinder 55 and the outer cylinder
A spacer 58 for holding a space therebetween is fixed between the bottom and the center of the 56, and at the position where the spacer 58 is located, the bottom of the inner cylinder 55 bulges upward. A receiving portion 59 is formed. A coating 60 made of enamel or the like is formed on the entire inner surface of the inner cylinder 55. An upper frame 61 made of a synthetic resin is fixed to an upper portion of the outer periphery of the outer cylinder 56. On both sides of the upper frame 61, both ends of a substantially U-shaped handle 62 are respectively supported by shafts 63.
And are rotatably supported.

Numeral 65 denotes a metal inner container into which food is put. The inner container 65 is housed in the outer container 53 through the opening 52 so as to be freely taken in and out. It is supported on the receiving portion 59. In the inner container 65, both ends of a substantially semicircular handle 67 are rotatably supported by support shafts 68 on both upper sides of the inner container body 66. Further, the upper surface opening of the inner container body 66 is closed by a detachable inner lid 70. The inner lid 70 is provided with a knob 71 made of synthetic resin at the center of the upper surface.

Reference numeral 76 denotes a lid member.
Is rotatably supported by the outer container 53, and this outer container
With the inner container 65 stored in the container 53, the opening 52 of the outer container 53 is opened.
Is to close. The lid member 76 is made of a synthetic resin, but has a built-in heat insulating material and has heat insulating properties. A handle 79 is provided on the side of the lid member 76 opposite to the hinge 77. Further, receiving projections 80 are provided on both sides of the lid member 76. On the other hand, cutouts 81 are formed at both ends of the handle 62, into which both the receiving projections 80 are inserted. And, when the handle 62 is tilted to one side,
The open portion of the notch 81 is located above the receiving projection 80 so that the cover 76 can be opened and closed. The lid member 76 is positioned above the projection 80 and is locked in a closed state.

Next, the operation of the above configuration will be described. When the inner container 65 is stored in the outer container 53, the bottom of the inner container 65 rests on the receiving portion 59 at the bottom of the inner cylinder 55 of the outer container 53. Further, at the time of storage or removal, the inner surface of the inner cylinder 55 may come into contact with the outer surface of the inner container 65 or the handle 62. However, since the coating 60 is formed on the entire inner surface of the inner cylinder 55, the inner container 65 comes into contact with the coating 60, and the base portions of the inner cylinder 55 and the inner container 65 do not directly contact. Therefore, as in the case of the first embodiment and the like, the problem of corrosion and rust caused by contact does not occur, and an appropriate material can be freely selected as the material of the inner container 65.

In the third embodiment, instead of forming a coating on the inner surface of the inner cylinder 55, a coating may be applied on the entire outer surface of the inner container 65 or on the inner surface in addition thereto. It is also possible to apply a coating to both the inner cylinder 55 and the inner container 65.

Further, the present invention is not limited to the above embodiments, and various modifications can be made. For example, in the above embodiment, an enamel was illustrated as a coating material. However, as a coating, a self-cleaning paint (an outer surface adhesion preventing agent), a fluororesin coating, or a case where the material of the inner container is aluminum Various types such as alumite processing are possible. By appropriately selecting the material of the coating, it is possible to obtain effects such as improvement in corrosion resistance, improvement in cleaning properties, and improvement in appearance.

[0021]

According to the heat-insulating cooking container of the present invention, since the coating is formed on at least one of the inner surface of the outer container and the outer surface of the inner container, the inner container can be formed without corrosion or rust. Materials can be freely selected. This makes it possible to provide an insulated cooking container that can be manufactured at low cost, can perform good cooking, and is easy to use.

[Brief description of the drawings]

FIG. 1 shows a first embodiment of an insulated cooking container according to the present invention, in which (a) is a sectional view of the entirety, and (b) and (c) are enlarged views of a part thereof.

FIG. 2 is a bottom view of the same.

FIGS. 3A and 3B show a second embodiment of the insulated cooking container of the present invention, wherein FIG. 3A is an overall sectional view, and FIGS. 3B and 3C are enlarged views of a part thereof.

FIGS. 4A and 4B show a third embodiment of an insulated cooking container according to the present invention, wherein FIG. 4A is an overall sectional view, and FIGS. 4B and 4C are enlarged views of a part thereof.

FIG. 5 is a perspective view of the same.

[Explanation of symbols]

 2 Opening 3 Outer container 10 Coating 15 Inner container 26 Lid member 31 Coating 52 Opening 53 Outer container 60 Coating 65 Inner container 76 Lid member

Claims (1)

[Claims] 1. An outer container having heat insulation properties, an inner container housed in the outer container through an opening thereof so as to be freely inserted into and removed from the outer container, and an opening of the outer container closed with the inner container housed. An insulated cooking container comprising: a heat-insulating lid member; and a coating formed on at least one of an inner surface of the outer container and an outer surface of the inner container.