JP3723965B2 - Insulated cooking container - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
TECHNICAL FIELD The present invention relates to an insulated cooking container that can be suitably used for a cooking method in which food cooked as a semi-cooked product by heating is used to make a finished cooked product.
[0002]
[Prior art]
In this type of insulated cooking container, for example, as described in Japanese Utility Model Laid-Open No. 7-36949, an inner container for storing a cooked product is housed in an outer container having heat insulation properties. The outer container is a vacuum double container in which a vacuum heat insulating layer is formed between the outer cylinder and the inner cylinder, but the material of the outer cylinder and the inner cylinder is stainless steel.
[0003]
By the way, in the insulated cooking container described in the above publication, when the inner container is housed in the outer container, the handle base of the inner container rests on the upper end of the outer container, and when the inner container is taken in and out, The side surface contacts the outer surface of the inner container. Thus, there is a contact portion between the inner container and the inner cylinder of the outer container, but if the inner container is made of a different kind of metal from the inner cylinder, there is a risk that corrosion or rust will occur in the contact portion. The material of the inner container was the same stainless steel as the inner cylinder.
[0004]
[Problems to be solved by the invention]
As described above, in the conventional heat insulation cooking container, since it is inevitable that the stainless steel constituting the inner cylinder of the outer container and the metal material constituting the inner container are in direct contact, 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.
[0005]
Then, this invention is made | formed in view of the said conventional problem, and it aims at providing the heat insulation cooking container which can select the material of an inner container freely, without causing generation | occurrence | production of corrosion and rust.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the present invention includes an outer container having a heat insulating property, and a handle base that is detachably accommodated in the outer container via its opening and rests on the upper end of the outer container. An insulated cooking container comprising an inner container made of a metal different from the outer container, and a lid member having a heat insulating property for closing the opening of the outer container in a state in which the inner container is accommodated. On the inner surface of the container, a coating is formed on the entire inner surface including the upper end portion, or the entire outer surface of the inner container and the outer surface of the handle base.
[0007]
Thereby, an outer container and an inner container contact through a coating, and a base material part does not contact directly. Therefore, even if the outer container and the inner container are made of different metal materials, the problem of corrosion or rusting does not occur, and the material of the inner container can be freely selected.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a first embodiment of the heat insulating cooking container of the present invention will be described with reference to FIGS. 1 and 2. Reference numeral 1 denotes a heat-insulating cooking container main body. The heat-insulating cooking container main body 1 includes an outer container 3 having an upper surface as an opening 2 and a synthetic resin bottom member 4 fitted and fixed to the outside of the bottom of the outer container 3. And. The said outer container 3 forms the vacuum heat insulation layer 7 between the inner cylinder 5 and the outer cylinder 6 which consist of stainless steel, and has heat insulation. The inner cylinder 5 and the outer cylinder 6 are connected to each other at the upper end on the opening 2 side. Further, a sealing lid 8 that seals a hole used when the inner cylinder 5 and the outer cylinder 6 are evacuated is joined to the bottom of the outer cylinder 6 by means such as brazing. Further, a spacer 9 is fixed between the center of the bottom of the inner cylinder 5 and the center of the bottom of the outer cylinder 6 so as to maintain a gap therebetween. A coating 10 made of enamel or the like is formed on the inner surface of the inner cylinder 5 including the upper end portion 5a. Further, an upper frame 11 made of synthetic resin is fixed to the upper outer peripheral portion of the outer cylinder 6, and handle portions 12 are formed on both sides of the upper frame 11 so as to project outward.
[0009]
Reference numeral 15 denotes a metal inner container into which food is put. The inner container 15 is accommodated in the outer container 3 through the opening 2 so as to be freely put in and out. The inner container 15 is provided with handles 17 on both upper sides of the inner container body 16. These handles 17 include a metal handle base 18 joined to the inner container body 16 and a synthetic resin grip 19 fixed to the tip of the handle base 18. The handle base 18 is formed in a substantially inverted L shape, and the handle base 18 is placed on the upper end 5a of the inner cylinder 5 so that the inner container 15 is supported. 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, the two gripping portions 19 are respectively located above the handle portions 12 of the upper frame 11 of the outer container 3. Furthermore, the upper surface opening of the inner container body 16 is closed by a removable inner lid 20. This inner lid 20 is provided with a synthetic resin knob 21 at the center of the upper surface thereof.
[0010]
Reference numeral 26 denotes a lid member. The lid member 26 is rotatably supported by the outer container 3 by a hinge 27. With the inner container 15 stored in the outer container 3, the opening 2 of the outer container 3 is opened. Close. The lid member 26 is made of synthetic resin, but has a built-in heat insulating material 28 and has heat insulating properties. Reference numeral 29 denotes a clamp for holding the lid member 26 in a closed state with respect to the outer container 3. In addition, with the lid member 26 closed, the grip portion 19 of the handle 17 of the inner container 15 is positioned so as to protrude outward from the lid member 26.
[0011]
Next, the operation of the above configuration will be described. In a state where 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 part 5 a of the inner cylinder 5 of the outer container 3, but the upper end part 5 a of the inner cylinder 5 is included. Since the coating 10 is formed on the entire inner surface, the handle base 18 is in contact with the coating 10 and the base portion of the handle base 18 and the inner cylinder 5 is not in direct contact. In addition, when the inner container 15 is taken in and out of the outer container 3, the outer surface of the inner container body 16 can come into contact with the inner surface of the inner cylinder 5. At this time, the inner container body 16 is also in contact with the coating 10 of the inner cylinder 5. 16 is in contact, and the inner container body 16 and the base portion of the inner cylinder 5 are not in direct contact.
[0012]
Therefore, even if the inner container main 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, the problem of corrosion or rusting due to contact does not occur. As a result, an appropriate material such as aluminum or a copper-based alloy can be freely selected as the material of the inner container 15 in addition to stainless steel. That is, as the material of the inner container 15, an appropriate material such as a material cheaper than stainless steel, a material that is easier to process, a material that is superior in heat insulation, or a material that is lighter and easier to handle for the user can be selected.
[0013]
Next, a second embodiment of the heat insulating cooking container of the present invention will be described with reference to FIG. In addition, since the heat insulation cooking container of 2nd Example has the same structure except the heat insulation cooking container of said 1st Example, and coating, the same code | symbol is attached | subjected to the part corresponding to this 1st Example. 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, the inner container body 16 and the handle base 18 of the inner container 15 are in contact with each other through the coating 31, and the base portion is not in direct contact. The same effect as 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 terms of manufacturing.
[0014]
In particular, 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 also to the inner surface of the inner container body 16 in which food is put, the effect of improving the detergency is great. It is also possible to coat both the inner cylinder 5 and the inner container 15 by combining the configurations of the above two embodiments.
[0015]
Next, a third embodiment of the heat insulating cooking container of the present invention will be described with reference to FIGS. 51 is a heat insulating cooking container main body, the heat insulating cooking container main body 51 includes an outer container 53 having an upper surface as an opening 52, and a synthetic resin bottom member 54 fitted and fixed to the outside of the bottom of the outer container 53. And. The outer container 53 is formed by forming a vacuum heat insulating layer 57 between an inner cylinder 55 and an outer cylinder 56 made of stainless steel, and has a heat insulating property. In addition, a spacer 58 is secured between the center of the bottom portion of the inner cylinder 55 and the center of the bottom portion of the outer cylinder 56. A receiving portion 59 bulging upward is formed at the bottom of the tube 55. A coating 60 made of enamel or the like is formed on the entire inner surface of the inner cylinder 55. Further, an upper frame 61 made of synthetic resin is fixed to the upper outer periphery of the outer cylinder 56, and both ends of a substantially U-shaped handle 62 are respectively supported by a support shaft 63 on both sides of the upper frame 61. It is supported rotatably.
[0016]
65 is a metal inner container into which food is put, and this inner container 65 is housed in the outer container 53 so as to be freely put in and out through its opening 52, and a receiving part 59 at the bottom of the inner cylinder 55. It is to be supported on top. In the inner container 65, both end portions of a substantially semicircular handle 67 are rotatably supported by support shafts 68 on both upper sides of the inner container main body 66, respectively. Furthermore, the upper surface opening of the inner container body 66 is closed by a removable inner lid 70. The inner lid 70 is provided with a synthetic resin knob 71 at the center of the upper surface thereof.
[0017]
Reference numeral 76 denotes a lid member. The lid member 76 is rotatably supported by the outer container 53 by a hinge 77, and the inner container 65 is accommodated in the outer container 53 so that the opening 52 of the outer container 53 is opened. Close. The lid member 76 is made of 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, notches 81 into which the receiving projections 80 respectively enter are formed at both ends of the handle 62. When the handle 62 is tilted to one side, the open portion of the notch 81 is positioned above the receiving projection 80 so that the lid member 76 can be opened and closed, and the handle 62 is tilted or tilted to the other In the state, the closed portion of the notch 81 is positioned above the receiving projection 80 and is locked in a closed state.
[0018]
Next, the operation of the above configuration will be described. In a state where the inner container 65 is stored in the outer container 53, the bottom portion of the inner container 65 is placed on the receiving portion 59 at the bottom portion of the inner cylinder 55 of the outer container 53. Further, the inner side surface of the inner cylinder 55 and the outer side surface of the inner container 65 or the handle 62 may come into contact with each other during storage or withdrawal. However, since the coating 60 is formed on the entire inner surface of the inner cylinder 55, the inner container 65 is in contact with the coating 60, and the base portion of the inner cylinder 55 and the inner container 65 is not in direct contact. Therefore, as in the first embodiment, there is no problem of corrosion or rust caused by contact, and an appropriate material can be freely selected as the material of the inner container 65.
[0019]
In the third embodiment, instead of forming the coating on the inner surface of the inner cylinder 55, the entire outer surface of the inner container 65, or in addition thereto, the inner surface may be coated. It is also possible to coat both the inner cylinder 55 and the inner container 65.
[0020]
Further, the present invention is not limited to the above embodiments, and various modifications can be made. For example, in the above embodiment, enamel was exemplified as the coating material, but other coatings include self-cleaning paint (outer surface adhesion inhibitor), fluororesin coating, or the material of the inner container is aluminum. Can be various types such as those by anodizing. By appropriately selecting a coating material, it is possible to obtain effects such as improvement in corrosion resistance, improvement in cleanability and appearance.
[0021]
【The invention's effect】
According to the heat insulating cooking container of the present invention, the inner surface of the outer container is coated on the entire inner surface including the upper end, or the entire outer surface of the inner container and the outer surface of the handle base. The material of the inner container can be selected freely without causing rust. This makes it possible to provide an insulated cooking container that can be manufactured at low cost, can be cooked well, and is easy to use.
[Brief description of the drawings]
FIG. 1 shows a first embodiment of an insulated cooking container of the present invention, in which (a) is a sectional view of the whole, and (b) and (c) are enlarged views of a part thereof.
FIG. 2 is a bottom view of the same as above.
FIGS. 3A and 3B show a second embodiment of the heat insulating cooking container of the present invention, in which FIG. 3A is a sectional view of the whole, and FIGS.
FIG. 4 shows a third embodiment of the heat insulation cooking container of the present invention, in which (a) is a sectional view of the whole, and (b) and (c) are enlarged views of a part thereof.
FIG. 5 is a perspective view of the same.
[Explanation of symbols]
2 Opening 3 Outer container
5a Upper end
10 coating
15 Inner container
18 Toride base
26 Lid member
31 coating
52 opening
53 Outer container
60 coating
65 Inner container
76 Lid member

Claims (1)

An outer container having a heat insulating property, and an inner container made of a metal different from the outer container having a handle base portion that is housed in the outer container through the opening thereof and is mounted on the upper end of the outer container . And a heat-insulating cooking container having a heat insulating lid member that closes the opening of the outer container in a state in which the inner container is housed, and the inner surface of the outer container includes the upper end portion. An insulated cooking container, wherein a coating is formed on the entire inner surface, or the entire outer surface of the inner container and the outer surface of the handle base.

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