JPH09294681A - Insulating cooking tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an insulating cooking tool wherein handles do not obstruct to put an inner pot in and to draw it out and which is easily carried and has a simple structure and is inexpensive. SOLUTION: This cooking tool is constituted by storing an inner pot 3 in an insulating container with an opening part being opened upward so as to put it in and draw it out and covering the opening part of the insulating container with an insulating lid 2. In this case, a pair of handles 46 extending more upward than the opening part on the outer side face of the inner pot 3 are fitted by approximately the same distance between the outer side face as the dimension of the outer diameter of the trunk of the inner pot 3 and recessed parts 33 wherein the handles 46 of the inner pot 3 are stored are formed on the inner face of the insulating lid 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an adiabatic cooker used for putting an inner pan prepared for stewed dishes in an adiabatic container for cooking, and for keeping and warming beverages and foods.

[0002]

2. Description of the Related Art In a conventional heat-insulating cooker, there are a type in which a handle of an inner pot projects outside the heat-insulating container and a type in which the handle is housed inside the heat-insulating container. As a form in which the handle of the inner pot protrudes to the outside of the heat insulating container, as shown in Japanese Utility Model Publication No. 4-28490 and Japanese Utility Model Publication No. 7-29938, when the inner pot is stored in the heat insulating container, the handle of the inner pot is used. There is a type that extends outside the opening of the heat insulating container and is sandwiched or stored between the grip of the heat insulating container and the grip of the heat insulating lid. However, since the handle of the inner pot extends outward from the opening of the heat insulating container, it is necessary to form a communication groove in the heat insulating lid that communicates with the inside and outside, and escape of heat from this communication groove cannot be avoided. . Also, since the handle must be fitted to this communication groove, the storage direction of the inner pot is fixed, and storage is difficult. Furthermore, when carrying only the handle of the inner container held between the grip portion of the heat insulating container and the grip portion of the heat insulating lid, there is a possibility that the heat insulating container may come off on the way.

On the other hand, as a type in which the handle of the inner pot is housed inside the heat insulating container, as shown in Japanese Utility Model Publication No. 3-10920, the inner pot is housed in the heat insulating container and covered. There is a U-shaped handle attached to the outer surface of the mouth of the inner pot so that it does not get in the way. Also,
As shown in Japanese Utility Model Publication No. 7-13619, the handle of the inner pot is attached so as to be foldable by sliding or rotating, and when the inner pot is taken in and out, the handle is projected laterally from the opening of the heat insulating container, and the inner pot is opened. In some cases, the handle is folded inside the heat insulating container when the lid is housed in the heat insulating container. However, in the former case, the handle is lying down while preparing the dish in the inner pot, which makes it difficult to hold and cook. Further, in the latter case, the structure for sliding and rotating the handle is complicated, and there is concern about the strength, and the manufacturing cost is high. Furthermore, both of them are inconvenient because the handle is lying or folded when removing the inner pot from the heat-insulating container, which is inconvenient, and when removing the inner pot after heat insulation cooking, the handle It was hard to hold because it was heated.

[0004]

SUMMARY OF THE INVENTION The present invention solves the problems of both the above-mentioned type in which the handle of the inner pot projects outside the heat insulating container and the type in which it is housed inside, that is, The handle doesn't get in the way of putting in and out the inner pot,
Moreover, it is an object of the present invention to provide an inexpensive cooker that is easy to hold and has a simple structure that prevents the handle from becoming hot.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention stores an inner pot so that it can be put in and taken out from a heat insulating container having an opening opening upward, and the opening of the heat insulating container is covered with a heat insulating lid. In a heat-insulated cooker that is covered with a pair of grips extending above the opening on the outer surface of the inner pot with an outer surface distance substantially the same as the outer diameter of the barrel of the inner pot, A recess for accommodating the handle of the inner pot is formed on the inner surface of the heat insulating lid.

According to the structure of the invention, since the handle of the inner pot has an outer surface distance which is substantially the same as the outer diameter of the body of the inner pot, it hinders the accommodation of the inner pot in the heat insulating container. In addition, since the handle of the inner pot projects from the opening of the heat-insulating container when the inner pot is stored in the heat-insulating container, it is easy to put the inner-pot in and out. In addition, since the heat insulating lid is formed with a recess for accommodating the handle of the inner pot, the handle does not interfere when the heat insulating container is closed by the heat insulating lid. Furthermore, since the handle of the inner pot extends upward, the handle can be easily held when preparing the cooking in the inner pot, which facilitates cooking.

In the above invention, the recess is preferably annular. In this way, no matter how the inner pot is stored, the handle will be stored in the recess of the heat insulating lid, so the position of the handle is not restricted when storing the inner pot in the heat-insulating container, and storage is easy. You can do it.

Further, the recess may be an annular shape having a discontinuous portion. Normally, the position of the handle when the inner pot is stored in the heat-insulating container is almost fixed, so the recess of the heat-insulating lid is formed to match that position, and the rest of the handle can be used as a discontinuous part when storing. The convenience is not impaired.

When the recess is formed in an annular shape having a discontinuous portion as described above, it is preferable to form an inclined surface or a curved surface extending in the circumferential direction toward the recess in the discontinuous portion. According to this, even if the position of the handle of the inner pot is slightly displaced from the position of the recess, the tip of the handle hits the inclined surface or the curved surface when the heat-insulating lid is closed, and the handle moves on the inclined surface or while the inner pot rotates. While being slid on the curved surface, it is guided toward the recess and is stored in the recess.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 shows an insulation cooker according to the present invention, which comprises an insulation container 1 and an insulation lid 2.
And inner pot 3.

The heat insulating container 1 is made of stainless steel, and the inner container 5 is housed in the outer container 4 and their openings are joined, and the space between the outer container 4 and the inner container 5 is evacuated to form a vacuum space 6. It is a so-called vacuum double structure container. The opening edge portion 7 at the upper end of the heat insulating container 1 is folded outward in an L shape. The bottom surface of the inner container 5 has a shape that is gently inclined downward toward the center thereof, so that the inner pot 3 housed in the heat insulating container 1 makes a line contact with the bottom surface of the inner container 5 in a circle at the X position in the figure. It is supposed to do. In addition, instead of line contact, the inner pot 3
Alternatively, a protrusion may be formed on the inner container 5 to make point contact. The bottom surface of the bottom of the inner container 5 has a support member 8 having a substantially spoon shape.
Is attached. As shown in FIG. 2, the support member 8 includes a handle portion 9, a hemispherical portion 10 provided at one end of the handle portion 9, and a recessed portion 11 provided at the other end of the handle portion 9, With the getter 12 held in the recess 11, the handle 9 is attached by spot welding to the bottom surface of the bottom of the inner container 5. The apex of the hemispherical portion 10 of the support member 8 is in point contact with the upper surface of the bottom of the outer container 4 at the Y position, and prevents the bottoms of the outer container 4 and the inner container 5 from being deformed by negative pressure due to vacuum. A chip tube 13 used for exhausting air between the outer container 4 and the inner container 5 is attached to the bottom of the outer container 4 in a sealed state. An outer peripheral groove 14 is formed in the lower portion of the body of the outer container 4, and an outer peripheral protrusion 15 is formed in the upper portion.

A bottom body 16 made of metal such as iron or stainless steel is attached to the bottom of the heat insulating container 1. This bottom 16
Is a bottomed tubular shape having a low height, and the curling portion 17 is formed by the upper end edge thereof being wound inward as shown in FIG. A bulging portion 18 that bulges upward in the center of the bottom of the bottom body 16.
A ring-shaped spacer 19 made of stainless steel is arranged near the outer periphery of the bulging portion 18. The bottom body 16 is attached to the heat insulating container 1 by forcibly fitting the curling portion 17 into the outer peripheral groove 14 of the heat insulating container 1. The spacer 19 prevents the bottom of the outer container 4 of the heat insulating container 1 from falling into the bottom body 16. The bottom body 16 may be made of resin instead of metal. The attachment to the heat insulating container 1 is not limited to forced fitting, but can be performed by any method such as bonding.

A shoulder body 20 made of synthetic resin is attached to the opening edge portion 7 of the heat insulating container 1. The shoulder body 20 is an annular shape having an inner diameter slightly larger than the outer diameter of the body of the heat insulating container 1. The outer peripheral projection 1 of the outer container 4 is provided on the inner peripheral surface of the shoulder body 20.
An inner peripheral projection 21 that engages with No. 5 is formed. In addition, a groove 22 into which the opening edge portion 7 of the heat insulating container 1 is fitted is formed on the upper surface of the shoulder body 20. Further, on the outer peripheral surface of the shoulder body 20, as shown in FIG. 4, handles 23 are formed at positions separated by 180 °, and as shown in FIG. 1, hinges are formed at positions separated by 90 ° from the handles 23, respectively. Stand 24
And an engaging portion 25 are formed. At the upper end of the engaging portion 25, as shown in FIG. 4, a guide portion 26 having an inclined upper surface for guiding the hook-side end of the heat insulating lid 2 to a correct position is formed. Guide walls 27 are formed at both ends of the guide portion 26. Further, at the lower end of the engaging portion 25, an engaging protrusion 28 protruding in the horizontal direction with which the hook 36 of the heat insulating lid 2 is engaged is formed.

The heat insulating lid 2 accommodates a heat insulating material 31 such as styrofoam in the space between the upper plate 29 and the lower plate 30, and is rotated by a hinge pin 32 on the hinge base 24 of the shoulder body 20 of the heat insulating container 1. It is movable and detachably attached. The lower plate 30 is formed with an annular recess 33 for accommodating a handle 46 of the inner pot 3 described later. Also, the lower plate 30
As shown in FIG. 4, a pair of projecting pieces 34 is formed at the tip on the side opposite to the hinge side, and a hook 36 is attached by a pin 35 provided between the pair of projecting pieces 34. The lower end of the hook 36 hangs down from the lower plate 30 and engages with the engaging protrusion 28 formed on the shoulder body 20 of the heat insulating container 1. At the top of hook 36, hook 3
A spring 37 for urging 6 in the direction in which it engages with the engaging protrusion 28 is mounted. A pair of guide step portions 38 are formed inside the pair of projecting pieces 34. The distance between the pair of guide step portions 38 is such that the upper surface of the guide portion 26 formed on the engaging portion 25 of the shoulder body 20 of the heat insulating container 1 is inclined.
Set slightly wider than the width of these guide steps 38
Are formed so as to engage with the guide walls 27 at both ends of the guide portion 26.

The inner pot 3 is a container made of metal, the inner and outer surfaces of which are housed in the heat-insulating container 1 and which has an enamel finish. As shown in FIG. 5, the diameter of the opening edge portion 39 of the inner pot 3 is smaller than that of the body portion 40. The tip of the opening edge portion 39 is protected by attaching a cover (not shown) having an inverted U-shaped cross section. A step portion 42 on which the inner lid 41 is placed is formed below the opening edge portion 39, and the reduced diameter portion 4 is provided below the step portion 42.
3 and a curved portion 44 continuous from the reduced diameter portion 43 to the body portion 40. Then, the reduced diameter portion 43 and the curved portion 44.
A handle 46 made of synthetic resin is attached by a screw 47 to a pair of metal fittings 45 attached at positions 180 ° apart from each other and in the outer peripheral direction. The handle 46 includes a base portion 48 and a grip portion 49. A cover 50 for concealing the screw 47 is fitted to the base portion 48. The base 48 is located below the opening of the inner pot 3, and the grip 49
Extend above the opening. A hole portion 51 is formed in the grip portion 49, and has an elliptical ring shape so that a hand can be put. The holes 51 of the grips 46 on both sides face each other. As shown in FIG. 7, the outer surface of the grip portion 49 of the handle 46 is formed as a curved surface having a radius of curvature R _{1 which} is substantially the same as the outer surface of the body portion 40 of the inner pot 3. The distance L ₁ between the outer surfaces of the pair of grips 49 is substantially equal to the outer diameter of the body 40. The inner side surface of the grip portion 49 is formed by a curved surface having a larger radius of curvature R ₂ than the outer circumference of the inner lid 41, and the distance L ₂ between the inner side surfaces of the pair of grip portions 49 is greater than the outer diameter of the inner lid 41. Is also made large, which allows the inner lid 4
It does not get in the way of opening and closing 1. The cross section of the elliptical ring-shaped gripping portion 49 is formed thick so that sufficient strength can be obtained when holding the inner pot 3.

As shown in FIG. 5, the inner lid 41 for covering the inner pot 3 is curved upward from the outer peripheral edge toward the center,
A recess 52 is formed in the center and a knob 53 is attached to the center of the recess. This inner lid 41, like the inner pot 3,
The inner and outer surfaces are enamel finished. The outer peripheral edge of the inner lid 41 is bent downward, and its tip is protected by attaching a cover (not shown) having a U-shaped cross section.

In order to cook with the heat-insulating cooker having the above-mentioned structure, the food is put in the inner pot 3 taken out from the heat-insulating container 1, the inner lid 41 is closed, and the food is cooked by heating. Then, when the inner pot 3 with the inner lid 41 attached in that state is housed in the heat insulating container 1 and covered with the heat insulating lid 2, the inner pan 3 is thermally insulated by the heat insulating container 1 and the heat insulating lid 2 and cooked. As a result of the temperature being maintained almost as it is and adiabatic cooking, cooking of the ingredients in the inner pot 3 is completed. The finished dish can be kept warm. Further, in this heat-insulating cooker, it is also possible to put ice and a drink or food that requires freezing or cold storage in the inner pan 3, and then put the inner pan 3 in the heat insulating container 1 to keep it cool.

Since the grip portion 49 of the handle 46 extends above the opening of the inner pot 3, the inner pan 3 should be fired in a campground or the like while hanging a cross bar through the hole portion 51 of the grip portion 49. You can Further, the outer surface of the handle 46 of the inner pot 3 is almost the same as the diameter of the body portion 40, so that the handle does not get in the way even if it is arranged close to other inner pots 3, and the fire can be used effectively. . Since the inner surface of the handle 46 of the inner pot 3 is larger than the radius of curvature of the inner lid 41, the handle 46 does not interfere when opening and closing the inner lid 41. Since the handle 46 of the conventional inner pot 3 can be undulated and can be folded, there is concern about the strength, and it is not possible to cook with the handle 46. Since the handle 46 according to the embodiment of the present invention is fixed to the inner pot 3 and has a sufficient thickness, the handle 46 can be used for cooking. Since the knob 53 of the inner lid 41 is attached to the recess 52 at the center of the inner lid 41, the amount of protrusion upward is small and the knob 53 is compact. Further, the inner lid 41 has high strength due to the presence of the central concave portion 52.

When the inner pot 3 is put in the heat insulating container 1, the handle 46 is projected upward from the opening of the heat insulating container 1 as shown in FIG. The protruding handle 46 is housed in the annular recess 33 of the heat insulating lid 2. Therefore, the inner pot 3 can be put in the heat-insulating container 1 and immediately closed without lying down or folding the handle 46. When the handle 46 is laid down or folded as in the conventional case, the inner lid 41 cannot be easily opened and closed. However, in the inner pot 3 according to the embodiment of the present invention, the handle 46 remains protruding upward. It is possible to easily open the inner lid 41 to check the cooking state and taste the inside of the pan 3 with the pan 3 kept in the heat insulating container 1, and it is also possible to add seasonings and additional foods. Since the recess 33 of the heat-insulating lid 2 in which the handle 46 of the inner pot 3 is housed is annular, the heat-insulating lid 2 should be closed when the handle 46 is put in the heat-insulating container 1 in any orientation. You can Therefore, there is no need to align the inner pot 3 when putting it in the heat insulating container 1,
The thermal insulation lid 2 can be closed quickly and closed. Also,
When the heat insulating lid 2 is closed, as shown in FIG.
Even if is shifted by S with respect to the heat insulating container 1, the guide step portion 38 of the lower plate 30 of the heat insulating lid 2 is brought into contact with the guide portion 26 in which the upper surface of the shoulder body 20 of the heat insulating container 1 is inclined and slides. Then, the hook 36 is guided by the engaging projection 28, so that the heat insulating lid 2 is reliably closed.

When taking out the inner pot 3, when the heat insulating lid 2 is opened, the handle 46 of the inner pot 3 projects upward from the opening of the heat insulating container 1, so that the handle 46 can be taken out immediately. Further, the grip portion 49 of the handle 46 is separated from the opening portion of the inner pot 3 and the recess 3 of the heat insulating lid 2 is provided.
Since it is stored in 3, the temperature rise due to heat conduction from the inner pot 3 is small and it is hard to get hot. Therefore, even after opening the heat insulating cover 2, the handle 46 can be directly held by the hand.

Since the handle 46 of the inner pot 3 is completely housed in the space formed by the heat insulating container 1 and the heat insulating lid 2 in the heat insulating cooker of the above-described embodiment, the handle 46 is passed outside the heat insulating container 1. It is not necessary to provide a communication groove for the above, a closed structure is formed by the heat insulating container 1 and the heat insulating lid 2, there is no escape of heat, and the heat insulating property is good. Then, since the handle 46 of the inner pot 3 is completely housed in the closed structure, the handle 46 of the inner pot 3 is different from the conventional one.
It is safe without the danger of being carried around.

In addition, since the bottom body 16 of the heat insulating container 1 is made of metal, the heat insulating cooker of the above embodiment is safe even if the heat insulating container 1 is accidentally burned directly. Bottom 16
When the curling portion 17 is forcibly fitted into the outer circumferential groove 14 of the heat insulating container 1, it is not necessary to use an adhesive, and the curling portion 17 can be manufactured easily and inexpensively. Since the spacer 19 is interposed between the bottom body 16 and the heat insulating container 1, the strength against the impact on the bottom body 16 due to dropping or the like is improved.

Further, in the heat insulating cooker of the above-mentioned embodiment, the support member 8 is provided between the outer container 4 and the inner container 5 of the heat insulating container 1, and the outer container 4 and the inner container 5 are in contact with each other. The deformation of the bottom due to negative pressure is prevented, and the strength is improved. Also,
Since the bottom of the inner container 5 has a gentle curved surface, it becomes compact in the height direction. And the bottom of the inner pot 3 and the inner container 5
The bottom of the outer container 4 and the inner container 5 are in point contact with each other at a position X distant from the center, and the bottoms of the outer container 4 and the inner container 5 are in point contact with each other at the central position Y via the support member 8. Because
The heat conduction distance from the inner pot 3 to the outer container 4 is long, and the escape of heat can be suppressed.

FIG. 8 shows another embodiment of the present invention.
In this embodiment, the recess 33 of the lower plate 30 of the heat insulating lid 2 in which the handle 46 is housed is not a continuous annular shape but a discontinuous one. That is, since the inner pan 3 is normally housed so that the handle 46 is located at the position of the handle 23 of the heat insulating container 1, the recess 33 is formed at the position corresponding to that position, and the rest is the discontinuous portion 54. There is. The recess 33 has a large size so that it can be stored even if the handle 46 is slightly displaced, and its range is about 90 °. Discontinuous portion 54
As shown in FIG. 9, a curved surface portion 55 is formed on the step portion formed by the recess 33. Therefore, the handle 46 is shown in FIG.
When the heat-insulating lid 2 is closed as it is when the heat-insulating lid 2 is stored with a large deviation as shown in FIG.
When the heat-insulating lid 2 is further closed, the inner pot 3 is rotated in the direction of arrow A by the curved surface 55, so that the handle 46 is housed in the recess 33. . Therefore, even if the handle 46 is displaced to some extent, the heat insulating lid 2 can be reliably closed. Needless to say, the same effect can be obtained by providing an inclined surface instead of the curved surface portion 55.

[0025]

As is apparent from the above description, according to the present invention, when the inner pot is housed in the heat-insulating container or the heat-insulating lid is closed, the handle does not get in the way, and the inner pot is immediately insulated. The lid can be closed, and the inner pot can be taken out immediately after opening the insulating lid, making it very easy to put in and take out. Moreover, since the handle of the inner pot is not to be undulated or folded as in the conventional case, it is easy to hold, inexpensive and has sufficient strength. And by making the concave part of the heat insulation lid annular, the inner pot can be stored without worrying about the position of the handle of the inner pot, and since it has a closed structure, it is excellent in heat retention and also the handle of the inner pot It has the effect of not getting hot easily.

[Brief description of drawings]

FIG. 1 is a sectional view of an adiabatic cooker according to a first embodiment of the present invention.

2A is a cross-sectional view of a support member, and FIG. 2B is a plan view thereof.

FIG. 3 is a partially enlarged sectional view of a heat insulating container and a bottom body.

FIG. 4 is a partial front view of the heat insulating cooker with a heat insulating lid opened.

FIG. 5 is a front view of the inner pot with the inner lid open.

FIG. 6 is a side view of the inner pot.

FIG. 7 is an enlarged cross-sectional view taken along line I-I of FIG.

FIG. 8 is a front view of the heat insulating cooker with the heat insulating lid opened according to the second embodiment of the present invention.

FIG. 9 is a side view of the heat-insulating cooker in a state immediately before the heat-insulating lid of FIG. 8 is closed.

[Explanation of symbols]

1 ... Insulating container, 2 ... Insulating lid, 3 ... Inner pot, 33 ... Recess, 4
6 ... Handle, 54 ... Discontinuous portion, 55 ... Curved portion

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[Procedure amendment]

[Submission date] May 10, 1996

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] All figures

[Correction method] Change

[Correction contents]

FIG.

[Fig. 2]

[Figure 3]

FIG. 4

FIG. 7

[Figure 5]

FIG. 6

[Figure 8]

[Figure 9]

Front page continuation (72) Inventor Toyohiko Takatsuki 1-20-5 Tenma, Kita-ku, Osaka-shi, Osaka Zojirushi Mahobin Co., Ltd.

Claims (4)

[Claims] 1. A heat-insulating cooker in which an inner pot is housed in a heat-insulating container having an opening that opens upward, and the opening of the heat-insulating container is covered with a heat-insulating lid. A pair of handles extending upward from the opening is attached to the side surface with an outer surface distance substantially equal to the outer diameter dimension of the body of the inner pot, and the inner pot handle is housed on the inner surface of the heat insulating lid. An insulating cooker characterized by forming a recess. 2. The adiabatic cooker according to claim 1, wherein the recess has an annular shape. 3. The adiabatic cooker according to claim 1, wherein the recess has an annular shape having a discontinuous portion. 4. The heat insulating cooker according to claim 3, wherein an inclined surface or a curved surface extending in the circumferential direction toward the recess is formed in the discontinuous portion.