JP6340695B2 - Insulation cooker - Google Patents

Description

  The present invention relates to a heat retaining cooker.

  For example, after heating a cooking pot containing ingredients with a stove or the like to boil, and storing in a heat insulation container having a vacuum insulation structure, heat insulation cooking that keeps the ingredients heated while confining the heat applied to the cooking pot (For example, refer to Patent Documents 1 to 4.)

  Specifically, the heat insulation cooker includes a heat insulation outer container (heat insulation container) having a vacuum heat insulation structure, a heat insulation outer container lid for closing the upper end opening of the heat insulation outer container, and an inner container (cooking) accommodated in the heat insulation outer container. Pan) and an inner container lid for closing the upper end opening of the inner container.

  In such a heat-retaining cooker, for example, when performing long-time stewed cooking, there is no need to continuously heat, so there is a merit that it is safe and can save utility costs. In addition, it is possible to save time and labor to look at the cooking pan during heat insulation cooking.

JP-A-2005-192697 JP 2011-250954 A JP2012-148005A JP 2013-226325 A

  However, while the conventional heat-retaining cooker has the above-described advantages, it has not been always good in storage because it takes a place for storage. For example, when taking out a cooking pan from a heat-retaining cooker and storing it separately (when storing a cooking pan in a refrigerator, etc.), even if the heat-retaining cooker is empty, the size of itself changes. Absent. For this reason, when storing a heat-retaining cooker (a heat insulation outer container and a heat insulation outer container lid), it was necessary to ensure the same storage space irrespective of the presence or absence of a cooking pan (inner container).

  The present invention has been proposed in view of such a conventional situation, and an object thereof is to provide a heat-insulating cooker having excellent storability.

In order to achieve the above object, the present invention provides the following means.
[1] A food container having a vacuum heat insulating container and a heat insulating lid is provided, and the heated cooking container with the lid is accommodated inside the vacuum heat insulating container and the heat insulating lid, so that the food in the cooking container with the lid is kept warm. A thermal cooker,
The vacuum heat insulating container has a bottom wall and a container side peripheral wall that rises in a cylindrical shape from a peripheral portion of the bottom wall,
The heat insulating lid has a top wall and a lid side peripheral wall that falls in a cylindrical shape from a peripheral portion of the top wall,
With the inner surface of the bottom wall and the inner surface of the top wall facing each other, the vacuum heat insulating container can be stored inside the heat insulating lid, and the outer peripheral surface of the container side peripheral wall and the lid side peripheral wall With the inner peripheral surface overlapping each other, the interval between the inner surface of the bottom wall and the inner surface of the top wall is freely changeable ,
A cooking container with a lid accommodated inside the vacuum insulation container and the insulation lid;
In the state where the vacuum heat insulating container is housed inside the heat insulating lid, the interval is less than the height of the cooking container with the lid,
In the state which accommodated the cooking container with a lid inside the vacuum heat insulation container and the heat insulation lid, the above-mentioned space is more than the height of the cooking container with a lid, The heat-retaining cooker characterized by things.
[2] The heat insulation cooking according to [1], wherein an upper end portion of the peripheral wall of the container is in contact with an inner surface of the top wall in a state where the vacuum heat insulating container is housed inside the heat insulating lid. vessel.
[3] The vacuum heat insulating container has a diameter-enlarged portion that is larger than the outer diameter of the container-side peripheral wall on the lower end side of the container-side peripheral wall,
In the state which accommodated the said vacuum heat insulation container inside the said heat insulation lid | cover, the lower end part of the said lid side surrounding wall is contact | abutted with the said enlarged diameter part, The heat retention cooker as described in [1] characterized by the above-mentioned.
[4] The heat insulating lid has a leg portion on an outer peripheral surface of the lid side peripheral wall,
The heat retaining cooker according to any one of [1] to [3], wherein the leg portion supports the heat insulating lid in a self-supporting state.
[5] The heat-retaining cooker according to [4], wherein a pair of the leg portions are provided to face the outer peripheral surface of the lid-side peripheral wall.
[6] Any one of [1] to [5], further comprising: a fixture that fixes the vacuum heat insulating container to the heat insulating lid in a state where the vacuum heat insulating container is housed inside the heat insulating lid. The heat-retaining cooker according to claim 1.
[7] The fixing tool is a loop-shaped band member that is elastic in the circumferential direction,
By covering the vacuum heat insulating container and the heat insulating lid with the band member so that the circumferential direction of the band member is along the radial direction of the vacuum heat insulating container and the heat insulating lid, the vacuum heat insulating container is placed on the heat insulating cover. The heat-retaining cooker as described in [6], wherein
[8] The heat insulating lid has a recess provided in the center of the top surface of the top wall and a knob provided in the center of the bottom surface of the recess,
The heat-retaining cooker according to [7], wherein the height of the knob is equal to or less than the depth of the recess.
[9] The fixture is a long plate-like member that can be elastically deformed,
The plate-like member has a pair of bent pieces that are bent in the same direction on both sides in the longitudinal direction, and a pair of locking portions on the tip side of the pair of bent pieces,
With the plate-like member sandwiching the lid-side peripheral wall in the radial direction by the pair of bent pieces from the bottom wall side, the pair of locking portions are provided on a pair of outer peripheral surfaces of the lid-side peripheral wall. The heat insulating cooker according to [6], wherein the vacuum heat insulating container is fixed to the heat insulating lid by being locked to a locked portion .
[ 10 ] The cooking container with a lid includes a bottomed cylindrical container body, a lid body that closes an upper surface opening of the container body, and a pair of handle portions that are attached to face the outer peripheral surface of the container body. The heat-retaining cooker according to any one of [1] to [9], including:
[11] In the state in which housing the lid cooking vessel on the inside of said vacuum thermal insulation vessel and the thermal insulation cover, according to the above feature (10) in that the handle portion is in contact with the inner surface of the top wall Insulation cooker.
[ 12 ] The heat insulating lid has a slit cut out upward from a lower end portion of the lid side peripheral wall,
In the state which accommodated the cooking container with a lid inside the said vacuum heat insulation container and the said heat insulation lid, the said handle part is exposed to the outer side of the said heat insulation lid through the said slit, [ 10 ] Thermal insulation cooker of mention.
[ 13 ] The handle portion has a structure attached to an outer peripheral surface of the container body via an arm portion,
In the state which accommodated the cooking container with a lid inside the said vacuum heat insulation container and the said heat insulation lid | cover, the said arm part contact | abuts to the inner side upper end part of the said slit, The heat retention as described in [ 12 ] characterized by the above-mentioned. Cooking device.

  As described above, according to the present invention, it is possible to provide a heat-insulating cooker with excellent storage properties.

It is a heat-insulating cooker which concerns on the 1st Embodiment of this invention, and is a perspective view which shows the state which accommodated the heat insulation container inside the heat insulation lid. FIG. 2 is a cross-sectional view of the heat retaining cooker along line A-A ′ shown in FIG. 1. In the heat retention cooker shown in FIG. 1, it is a perspective view which shows the state which accommodated the cooking pot with a lid inside the heat insulation container and the heat insulation lid. FIG. 4 is a cross-sectional view of the heat retaining cooker along line B-B ′ shown in FIG. 3. It is a heat retention cooker which concerns on the 2nd Embodiment of this invention, and is a side view which shows the state which accommodated the cooking pot with a lid inside the heat retention container and the outer cover. It is a top view of the heat retention cooking appliance shown in FIG. FIG. 7 is a cross-sectional view of the heat retaining cooker along line C-C ′ shown in FIG. 6. It is the heat insulation cooker which concerns on the 3rd Embodiment of this invention, and is the perspective view which looked at the state which accommodated the heat insulation container inside the heat insulation cover, and was fixed with the fixing tool from the bottom wall side. It is a heat insulation cooking appliance which concerns on the 4th Embodiment of this invention, and is a side view which shows the state which accommodated the heat insulation container inside the outer cover. It is sectional drawing of the heat retention cooking appliance shown in FIG. It is a top view of the heat insulation cooking appliance which shows the modification of an external appearance shape. It is a side view of the heat retention cooker which illustrates the modification of a leg part.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
(First embodiment)
First, as a first embodiment of the present invention, for example, a heat retaining cooker 1A shown in FIGS. 1 to 4 will be described. FIG. 1 is a perspective view showing a state in which the heat insulation container 2 is housed inside the outer lid 3 in the heat insulation cooker 1A. FIG. 2 is a cross-sectional view of the heat retaining cooker 1A along the line AA ′ shown in FIG. FIG. 3 is a perspective view showing a state in which the cooking pot 4 with the lid is accommodated inside the thermal insulation container 2 and the outer lid 3 in the thermal insulation cooker 1A. FIG. 4 is a cross-sectional view of the heat retaining cooker 1A along the line BB ′ shown in FIG.

  As shown in FIGS. 1 to 4, the heat retaining cooker 1 </ b> A includes a heat retaining container (vacuum heat insulating container) 2 having a vacuum heat insulating structure, an outer lid (heat insulating cover) 3 having a heat insulating structure, a heat retaining container 2 and an outer cover. 3 and a cooking pot with a lid 4 (cooking vessel with a lid) 4 housed inside.

  The heat insulating container 2 has a bottomed cylindrical outer container 2a and an inner container 2b made of, for example, stainless steel, etc., and the mouth portions of each other are joined in a state in which the inner container 2b is accommodated inside the outer container 2a. It is comprised by the container of a structure. A vacuum heat insulating layer 2c is provided between the outer container 2a and the inner container 2b. The vacuum heat insulating layer 2c can be formed, for example, by closing a deaeration hole provided in the center of the bottom surface of the outer container 2a in a chamber that is depressurized (evacuated) to a high vacuum. Note that the outer peripheral surface of the heat retaining container 2 may be painted or printed.

  The heat insulating container 2 includes a substantially circular bottom wall 5, a container side peripheral wall 6 that rises in a substantially cylindrical shape from the peripheral edge of the bottom wall 5, and an upper end opening 7 that opens in a substantially circular shape at the upper end of the container side peripheral wall 6. have.

Here, the height H ₁ of the container side wall 6 is smaller than the height H ₀ of the lid cooking pot 4, slightly greater than half the height H ₀ of the lid cooking pot 4 and more specifically To a high degree. The inner diameter D ₁ of the container side wall 6 is larger than the outer diameter D ₀ of the lid cooking pot 4, and more specifically a slightly larger than the outer diameter D ₀ of the lid cooking pot 4.

  The outer lid 3 includes an outer casing 3a and an inner casing 3b made of, for example, heat resistant resin such as polypropylene, and is configured by a double-structure lid in which the outer casing 3a and the inner casing 3b are joined. . The inside of the outer lid 3 has a configuration in which air or a heat insulating material is disposed as the heat insulating layer 3c.

  The outer lid 3 includes a substantially circular top wall 8, a lid side peripheral wall 9 that falls in a substantially cylindrical shape from the peripheral edge of the top wall 8, and a lower end opening 10 that opens in a substantially circular shape at the lower end of the lid side peripheral wall 9. And have.

Here, the height H ₂ of the cover side wall 9 is smaller than the height H ₀ of the lid cooking pot 4, slightly greater than half the height H ₀ of the lid cooking pot 4 and more specifically To a high degree. The inner diameter D ₂ of the lid-side peripheral wall 9 is larger than the outer diameter D ₃ of the container-side peripheral wall 6, more specifically, slightly larger than the outer diameter D ₃ of the container-side peripheral wall 6.

  The outer lid 3 has a substantially circular recess 11 provided at the center of the top surface of the top wall 8 and a knob 12 provided at the center of the bottom of the recess 11. In order to make it easy to grasp, the knob portion 12 has, for example, a flange shape whose diameter is gradually expanded from the proximal end side toward the distal end side. The height of the knob 12 is equal to or less than the depth of the recess 11 so as not to protrude above the upper surface of the top wall 8.

  The outer lid 3 has legs 13 on the outer peripheral surface of the lid-side peripheral wall 9. In order to support the outer lid 3 in a self-supporting state, the leg portion 13 has, for example, a shape that protrudes from the outer peripheral surface of the lid-side peripheral wall 9 and is flattened. A pair of leg portions 13 are provided at positions facing each other on the outer peripheral surface of the lid-side peripheral wall 9.

  The heat retaining cooker 1 </ b> A includes a fixture 14 that fixes the heat retaining container 2 to the outer cover 3 in a state where the heat retaining container 2 is housed inside the outer cover 3. As the fixture 14, for example, a loop-shaped band member 15 that can be expanded and contracted in the circumferential direction can be used. For the band member 15, for example, a rubberized cloth or the like can be used.

  On the other hand, a guide groove 16 for guiding the band member 15 is provided on the outer peripheral surface of the lid-side peripheral wall 9. The guide grooves 16 are provided so as to divide the central portion of the pair of leg portions 13 along the height direction of the lid-side peripheral wall 9. Further, the width of the guide groove 16 is substantially the same as the width of the band member 15. The depth of the guide groove 16 is equal to or greater than the thickness of the band member 15 so that the band member 15 does not protrude from between the flattened surfaces of the legs 13.

  In the heat retaining cooker 1 </ b> A, the band member 15 is placed on the heat retaining container 2 and the outer lid 3 so that the circumferential direction of the band member 15 is along the radial direction of the heat retaining container 2 and the outer lid 3. At this time, the band members 15 are respectively positioned inside the pair of guide grooves 16 so that the band members 15 are not displaced. Thereby, the heat insulating container 2 can be fixed to the outer cover 3 while the heat insulating container 2 is housed inside the outer cover 3.

  The cooking pan 4 with a lid has a bottomed cylindrical container body 17, a lid 18 that closes the upper surface opening 17 a of the container body 17, and a pair of handle parts that are attached to face the outer peripheral surface of the container body 17. 19. The handle portion 19 is attached to the outer peripheral surface of the container body 17 via the arm portion 20. The arm part 20 is extended upward. As a result, the handle portion 19 is positioned above the knob portion 18 a provided at the center of the upper surface of the lid body 18.

  In addition, about the container main body 17 and the arm part 20, it consists of stainless steel etc., for example. The lid 18 is made of, for example, stainless steel or heat resistant glass. About the handle part 19 and the knob | pick part 18a, it consists of thermosetting resins, such as a phenol resin, for example.

  In the heat retaining cooker 1A having the above-described configuration, the heat retaining container 2 can be stored inside the outer lid 3 while the inner surface of the bottom wall 5 and the inner surface of the top wall 8 face each other. The distance between the inner surface of the bottom wall 5 and the inner surface of the top wall 8 can be changed while the outer peripheral surface of the side peripheral wall 6 and the inner peripheral surface of the lid side peripheral wall 9 overlap each other.

Specifically, in this heat retaining cooker 1 </ b> A, as shown in FIGS. 1 and 2, when the heat retaining container 2 is stored inside the outer lid 3, the upper end portion of the container side peripheral wall 6 is in contact with the inner surface of the top wall 8. It will be in the state contact | abutted. Further, the distance S ₁ between the inner surface of the bottom wall 5 and the inner surface of the top wall 8 in this state is less than the height H ₀ of the cooking pan 4 with a lid. That is, in the state where the heat insulation container 2 is housed inside the outer lid 3, the overall height of the heat insulation cooker 1A is made lower than the state where the cooking pot 4 with the lid is housed inside the heat insulation container 2 and the outer lid 3. be able to. Thereby, in the heat retention cooker 1A of this embodiment, the storage space required for storage can be made smaller than the conventional heat insulation cooker, and the storage property can be improved.

  Furthermore, in the heat retaining cooker 1A, the leg portion 13 can be made to stand on its own while being fixed by the band member 15 (fixing tool 14) described above. Thereby, the heat-retaining cooker 1A can also be stored in a so-called vertical state.

On the other hand, in the heat retaining cooker 1A, as shown in FIGS. 3 and 4, when the cooking pan 4 with the lid is accommodated inside the heat retaining container 2 and the outer lid 3, the handle portion 19 is placed on the inner surface of the top wall 8. It will be in the state contact | abutted. The space S ₂ between the inner surfaces and the top wall 8 of the bottom wall 5 in this state, a height H ₀ above lidded cooking pot 4. That is, in the heat insulating cooker 1A, in accordance with the height H ₀ of the lid cooking pot 4 which is housed inside the insulated container 2 and the outer lid 3, it is possible to increase the spacing S _2. Thereby, in 1 A of heat retention cookers of this embodiment, it is possible to arrange | position the cooking pan 4 with a lid | cover in the heat insulation space K formed inside the heat retention container 2 and the outer cover 3. As shown in FIG.

  Therefore, in the heat retaining cooker 1A, the cooking pan 4 with the lid containing the ingredients is heated with a stove or the like and boiled, and then accommodated inside the heat retaining container 2 and the outer lid 3 to thereby prepare the cooking pan 4 with the lid. Ingredients can be kept warm while confining the heat applied. In this heat-retaining cooker 1A, for example, when performing stew cooking for a long time, there is no need to continuously heat, so there is a merit that it is safe and can save utility costs. Further, it is possible to save labor and time for watching the cooking pot 4 with the lid during the heat insulation cooking.

  In the heat retaining cooker 1A of the present embodiment, the inner surface of the bottom wall 5 and the inner surface of the top wall 8 are within a range where the outer peripheral surface of the container side peripheral wall 6 and the inner peripheral surface of the lid side peripheral wall 9 overlap each other. The interval can be arbitrarily changed. Therefore, it is not limited to the case where the above-described dedicated cooking pot 4 with a lid is accommodated, but it is also possible to accommodate cooking pots with lids (cooking containers with a lid) of different sizes inside the heat retaining container 2 and the outer lid 3. is there. That is, in this heat retaining cooker 1A, it is possible to form the heat insulating space K in accordance with the size (height) of the cooking pot with the lid inside the heat retaining container 2 and the outer lid 3.

(Second Embodiment)
Next, as a second embodiment of the present invention, for example, a heat retaining cooker 1B shown in FIGS. 5, 6, and 7 will be described. FIG. 5 is a side view showing a state in which the cooking pot 4 with the lid is accommodated inside the thermal insulation container 2 and the outer lid 3 in the thermal insulation cooker 1B. 6 is a plan view of the heat retaining cooker 1B shown in FIG. FIG. 7 is a cross-sectional view of the heat-retaining cooker 1B along the line CC ′ shown in FIG. Moreover, in the following description, about the site | part equivalent to the said heat retention cooker 1A, while omitting description, the same code | symbol shall be attached | subjected in drawing.

  As shown in FIGS. 5 to 7, the heat-insulating cooker 1 </ b> B has a pair of handle portions 19 on the outside of the outer lid 3 in a state where the cooking pot 4 with the lid is accommodated inside the heat-insulating container 2 and the outer lid 3. Except for the exposed configuration, the configuration is basically the same as that of the heat retaining cooker 1A.

  Specifically, in this heat retaining cooker 1B, the outer lid 3 has a slit 21 for exposing the pair of handle portions 19 to the outside. The slits 21 are respectively provided at positions substantially orthogonal to the positions at which the pair of leg portions 13 of the lid side peripheral wall 9 are provided.

  Here, the shape of the arm portion 20 in the present embodiment is different from that of the arm portion 20 in the first embodiment. That is, the arm portion 20 in the present embodiment has a shape in which two arm members 20a and 20b arranged in parallel with each other are extended upward and extended outward in the middle thereof. The handle portion 19 is attached so as to connect the tips of these two arm members 20a and 20b.

  The lid-side peripheral wall 9 is provided with a pair of slits 21 arranged in parallel to allow the two arm members 20a and 20b to be inserted inside and outside. Each slit 21 is cut out linearly upward from the lower end of the lid-side peripheral wall 9.

  In the heat retaining cooker 1B having the above-described configuration, the heat retaining container 2 is placed inside the outer lid 3 with the inner surface of the bottom wall 5 and the inner surface of the top wall 8 facing each other, like the heat retaining cooker 1A. And the space between the inner surface of the bottom wall 5 and the inner surface of the top wall 8 can be changed in a state where the outer peripheral surface of the container-side peripheral wall 6 and the inner peripheral surface of the lid-side peripheral wall 9 overlap each other. Has been.

Specifically, in this heat retaining cooker 1B, when the heat retaining container 2 is housed inside the outer lid 3, the upper end portion of the container side peripheral wall 6 is similar to the heat retaining cooker 1A shown in FIGS. It will be in the state contact | abutted with the inner surface of the top wall 8. FIG. Further, the distance S ₁ between the inner surface of the bottom wall 5 and the inner surface of the top wall 8 in this state is less than the height H ₀ of the cooking pan 4 with a lid. That is, in the state where the heat insulation container 2 is housed inside the outer lid 3, the overall height of the heat insulation cooker 1B is made lower than the state where the cooking pot 4 with the lid is housed inside the heat insulation container 2 and the outer lid 3. be able to. Thereby, in the heat insulation cooker 1B of this embodiment, it is possible to make the storage space required for storage smaller than the conventional heat insulation cooker, and to improve storage property.

  Furthermore, in the heat-retaining cooker 1B, the leg portion 13 can be made to stand on its own while being fixed by the band member 15 (fixing tool 14) described above. Thereby, the heat-retaining cooker 1B can also be stored in a so-called vertical position.

  On the other hand, in the heat retaining cooker 1B, as shown in FIGS. 5 to 7, when the cooking pan 4 with the lid is accommodated inside the heat retaining container 2 and the outer lid 3, the arm members 20a and 20b (arm portion 20) are accommodated. ) Is in contact with the inner upper end of each slit 21. Thereby, in the heat-retaining cooker 1 </ b> B, the pair of handle portions 19 are exposed to the outside of the outer lid 3 through the respective slits 21.

The space S ₂ between the inner surfaces and the top wall 8 of the bottom wall 5 in this state, a height H ₀ above lidded cooking pot 4. That is, in the heat insulating cooker 1B, in accordance with the height H ₀ of the lid cooking pot 4 which is housed inside the insulated container 2 and the outer lid 3, it is possible to increase the spacing S _2. Thereby, in the heat insulation cooker 1B of this embodiment, it is possible to arrange | position the cooking pan 4 with a lid | cover in the heat insulation space K formed inside the heat insulation container 2 and the outer cover 3. As shown in FIG.

  Therefore, in the heat-insulating cooker 1B, like the above-mentioned heat-insulating cooker 1A, the cooking pan 4 with a lid containing ingredients is heated by a stove or the like and boiled, and then accommodated inside the heat-insulating container 2 and the outer lid 3 By doing this, the food can be cooked while keeping the heat applied to the cooking pan 4 with a lid confined. In this heat-retaining cooker 1B, for example, when performing stew cooking for a long time, it is not necessary to continuously heat, so that there is an advantage that it is safe and can save utility costs. Further, it is possible to save labor and time for watching the cooking pot 4 with the lid during the heat insulation cooking.

  In addition, in the heat retaining cooker 1B of the present embodiment, the inner surface of the bottom wall 5 and the inner surface of the top wall 8 are within a range where the outer peripheral surface of the container-side peripheral wall 6 and the inner peripheral surface of the lid-side peripheral wall 9 overlap each other. The interval can be arbitrarily changed. Therefore, it is not limited to the case where the above-described dedicated cooking pot 4 with a lid is accommodated, but it is also possible to accommodate cooking pots with lids (cooking containers with a lid) of different sizes inside the heat retaining container 2 and the outer lid 3. is there. That is, in this heat retaining cooker 1B, it is possible to form the heat insulation space K in accordance with the size (height) of the cooking pot with the lid inside the heat retaining container 2 and the outer lid 3.

(Third embodiment)
Next, as a third embodiment of the present invention, for example, a heat retaining cooker 1C shown in FIG. 8 will be described. In addition, FIG. 8 is the perspective view which looked at the state which accommodated the heat insulation container 2 inside the outer cover 3, and was fixed with the fixing tool 14 in the heat insulation cooking appliance 1C from the bottom wall 5 side. Moreover, in the following description, about the site | part equivalent to the said heat retention cooker 1A, while omitting description, the same code | symbol shall be attached | subjected in drawing.

  As shown in FIG. 8, the heat-insulating cooker 1 </ b> C is configured as described above except that the fixing member 14 uses a long plate-like member 22 that can be elastically deformed instead of using the band member 15. The configuration is basically the same as that of the container 1A.

  Specifically, in the heat retaining cooker 1C, the plate-like member 22 includes a long plate-like presser plate portion 22a and a pair of bent pieces 22b bent in the same direction on both sides in the longitudinal direction of the presser plate portion 22a. And a pair of latching | locking part 22c is provided in the front end side of a pair of bending piece 22b. The plate member 22 can be a metal plate, a plastic plate, or the like.

  On the other hand, a pair of locked portions 23 for locking the pair of locking portions 22 c are provided on the outer peripheral surface of the lid-side peripheral wall 9 instead of the guide groove 16. A pair of to-be-latched part 23 is each provided so that the center part of a pair of leg part 13 may be partly notched from the lower end side of the lid side surrounding wall 9 to the middle part of a height direction. Further, the width of the notched portion of the locked portion 23 is substantially the same as the width of the plate-like member 22. The depth of the notched portion of the locked portion 23 is equal to or greater than the thickness of the plate-like member 22 so that the bent piece 22b does not protrude from between the flattened surfaces of the leg portion 13. .

  In the heat retaining cooker 1C, the plate-like member 22 is sandwiched between the pair of bent pieces 22b from the bottom wall 5 side in the radial direction and the pair of locking portions 22c is paired with the pair of locked portions 23. Lock to. At this time, the presser plate 22a is pressed against the bottom wall 5 side of the heat retaining container 2 housed inside the outer lid 3. Thereby, the heat insulating container 3 can be fixed to the outer cover 3 while the heat insulating container 2 is housed inside the outer cover 3.

  In the heat retaining cooker 1C having the above-described configuration, the heat retaining container 2 is placed inside the outer lid 3 with the inner surface of the bottom wall 5 and the inner surface of the top wall 8 facing each other, like the heat retaining cooker 1A. And the space between the inner surface of the bottom wall 5 and the inner surface of the top wall 8 can be changed in a state where the outer peripheral surface of the container-side peripheral wall 6 and the inner peripheral surface of the lid-side peripheral wall 9 overlap each other. Has been.

Specifically, in this heat retaining cooker 1C, as with the heat retaining cooker 1A shown in FIGS. 1 and 2, when the heat retaining container 2 is housed inside the outer lid 3, the upper end of the container side peripheral wall 6 is It will be in the state contact | abutted with the inner surface of the wall 8. FIG. Further, the distance S ₁ between the inner surface of the bottom wall 5 and the inner surface of the top wall 8 in this state is less than the height H ₀ of the cooking pan 4 with a lid. That is, in the state where the heat insulation container 2 is housed inside the outer lid 3, the overall height of the heat insulation cooker 1C is made lower than the state where the cooking pot 4 with the lid is housed inside the heat insulation container 2 and the outer lid 3. be able to. Thereby, in the heat retention cooker 1C of this embodiment, the storage space required for storage can be made smaller than the conventional heat retention cooker, and the storage property can be improved.

  Furthermore, in the heat-retaining cooker 1C, the leg portion 13 can be made to stand on its own while being fixed by the plate-like member 22 (fixing tool 14) described above. Thereby, the heat-retaining cooker 1C can be stored in a so-called vertical state.

On the other hand, in the heat retaining cooker 1C, when the cooking pan 4 with the lid is accommodated inside the heat retaining container 2 and the outer lid 3, the handle portion 19 is tempered as in the heat retaining cooker 1A shown in FIGS. It will be in the state contact | abutted to the inner surface of the wall 8. FIG. The space S ₂ between the inner surfaces and the top wall 8 of the bottom wall 5 in this state, a height H ₀ above lidded cooking pot 4. That is, in the heat insulating cooking vessel 1C, according to the height H ₀ of the lid cooking pot 4 which is housed inside the insulated container 2 and the outer lid 3, it is possible to increase the spacing S _2. Thereby, in 1 C of heat insulation cooking appliances of this embodiment, it is possible to arrange | position the cooking pan 4 with a lid in the heat insulation space K formed inside the heat insulation container 2 and the outer cover 3. As shown in FIG.

  Therefore, in the heat-retaining cooker 1C, the cooking pan 4 with the lid containing the ingredients is heated by a stove or the like and boiled, and then accommodated inside the heat-retaining container 2 and the outer lid 3 to thereby prepare the cooking pan 4 with the lid. Ingredients can be kept warm while confining the heat applied. In this heat-retaining cooker 1C, for example, when performing stew cooking for a long time, it is not necessary to continuously heat, so there is a merit that it is safe and can save utility costs. Further, it is possible to save labor and time for watching the cooking pot 4 with the lid during the heat insulation cooking.

  In the heat retaining cooker 1C of the present embodiment, the inner surface of the bottom wall 5 and the inner surface of the top wall 8 are within a range in which the outer peripheral surface of the container-side peripheral wall 6 and the inner peripheral surface of the lid-side peripheral wall 9 overlap each other. The interval can be arbitrarily changed. Therefore, it is not limited to the case where the above-described dedicated cooking pot 4 with a lid is accommodated, but it is also possible to accommodate cooking pots with lids (cooking containers with a lid) of different sizes inside the heat retaining container 2 and the outer lid 3. is there. That is, in this heat retaining cooker 1C, it is possible to form the heat insulation space K in accordance with the size (height) of the cooking pot with the lid inside the heat retaining container 2 and the outer lid 3.

(Fourth embodiment)
Next, as a fourth embodiment of the present invention, for example, a heat retaining cooker 1D shown in FIGS. 9 and 10 will be described. FIG. 9 is a side view showing a state in which the heat insulation container 2 is housed inside the outer lid 3 in the heat insulation cooker 1D. FIG. 10 is a cross-sectional view of the heat retaining cooker 1D shown in FIG.

  As shown in FIGS. 9 and 10, the warming cooker 1 </ b> D is the above warming cooker except that the warming container 2 is in contact with the outer lid 3 when the warming container 2 is housed inside the outer lid 3. The configuration is basically the same as 1A.

  Specifically, in this heat retaining cooker 1D, the heat retaining container 2 has a structure in which a ring-shaped bottom member 24 is attached to the lower end side of the container-side peripheral wall 6. The bottom member 24 constitutes a diameter-expanded portion that is larger than the outer diameter of the container-side peripheral wall 6. For the bottom member 24, polypropylene (PP) or the like is used as a synthetic resin material having heat resistance and high strength and light weight.

  In the heat retaining cooker 1D having the above-described configuration, the heat retaining container 2 is placed inside the outer lid 3 with the inner surface of the bottom wall 5 and the inner surface of the top wall 8 facing each other, similarly to the heat retaining cooker 1A. And the space between the inner surface of the bottom wall 5 and the inner surface of the top wall 8 can be changed in a state where the outer peripheral surface of the container-side peripheral wall 6 and the inner peripheral surface of the lid-side peripheral wall 9 overlap each other. Has been.

  Specifically, in this heat retaining cooker 1D, as shown in FIGS. 9 and 10, when the heat retaining container 2 is housed inside the outer lid 3, the lower end portion of the lid side peripheral wall 9 abuts against the bottom member 24. It will be in the state. At this time, the outer peripheral surface of the lid side peripheral wall 9 and the outer peripheral surface of the bottom member 24 are substantially flush. Thereby, in thermal insulation cooking appliance 1D, it is possible to improve appearance.

Further, the distance S ₁ between the inner surface of the bottom wall 5 and the inner surface of the top wall 8 in this state is less than the height H ₀ of the cooking pan 4 with a lid. That is, in the state where the heat insulation container 2 is housed inside the outer lid 3, the overall height of the heat insulation cooker 1D is made lower than the state where the cooking pot 4 with the lid is housed inside the heat insulation container 2 and the outer lid 3. be able to. Thereby, in the heat insulation cooking appliance 1D of this embodiment, it is possible to make the storage space required for storage smaller than the conventional heat insulation cooker, and to improve storage property.

  Furthermore, in the heat-retaining cooker 1D, the leg portion 13 can be made to stand on its own while being fixed by the above-described fixture 14 (not shown). Thereby, the heat-retaining cooker 1D can also be stored in a so-called vertical state.

On the other hand, in the heat retaining cooker 1D, when the cooking pan 4 with the lid is accommodated inside the heat retaining container 2 and the outer lid 3, the handle portion 19 is placed on the top as in the heat retaining cooker 1A shown in FIGS. It will be in the state contact | abutted to the inner surface of the wall 8. FIG. The space S ₂ between the inner surfaces and the top wall 8 of the bottom wall 5 in this state, a height H ₀ above lidded cooking pot 4. That is, in the heat insulating cooking vessel 1D, according to the height H ₀ of the lid cooking pot 4 which is housed inside the insulated container 2 and the outer lid 3, it is possible to increase the spacing S _2. Thereby, in the heat insulation cooker 1D of this embodiment, it is possible to arrange | position the cooking pan 4 with a lid | cover in the heat insulation space K formed inside the heat insulation container 2 and the outer cover 3. As shown in FIG.

  Therefore, in the heat-retaining cooker 1D, the cooking pan 4 with the lid containing the ingredients is heated by a stove or the like and boiled, and then accommodated inside the heat-retaining container 2 and the outer lid 3 to thereby prepare the cooking pan 4 with the lid. Ingredients can be kept warm while confining the heat applied. In this heat-retaining cooker 1D, for example, when performing stew cooking for a long time, there is no need to continuously heat, so there is a merit that it is safe and can save utility costs. Further, it is possible to save labor and time for watching the cooking pot 4 with the lid during the heat insulation cooking.

  In the heat retaining cooker 1D of the present embodiment, the inner surface of the bottom wall 5 and the inner surface of the top wall 8 are within a range where the outer peripheral surface of the container side peripheral wall 6 and the inner peripheral surface of the lid side peripheral wall 9 overlap each other. The interval can be arbitrarily changed. Therefore, it is not limited to the case where the above-described dedicated cooking pot 4 with a lid is accommodated, but it is also possible to accommodate cooking pots with lids (cooking containers with a lid) of different sizes inside the heat retaining container 2 and the outer lid 3. is there. That is, in this heat retaining cooker 1D, it is possible to form the heat insulating space K in accordance with the size (height) of the cooking pot with the lid inside the heat retaining container 2 and the outer lid 3.

In addition, this invention is not necessarily limited to the thing of the said 1st-4th embodiment, A various change can be added in the range which does not deviate from the meaning of this invention.
For example, the heat-insulating cooker to which the present invention is applied is not limited to the one having the above-described external shape, and can be appropriately changed according to its size, function, design, and the like. Specifically, the external shape of the heat-retaining cooker is not limited to the above-described substantially cylindrical shape, and may be a substantially rectangular tube shape as shown in FIG. 11, for example. In addition, in FIG. 11, while it abbreviate | omits description about the site | part equivalent to the said heat retention cooker 1A, and shall attach | subject the same code | symbol in drawing.

  Further, the leg portion 13 is not limited to the configuration described above, and can be appropriately changed. For example, like the leg part 13A shown to Fig.12 (a), you may comprise by a pair of protruding part 13a which protruded from the outer peripheral surface of the lid side surrounding wall 9. As shown in FIG. The pair of projecting portions 13a are arranged in parallel along the height direction of the lid-side peripheral wall 9 at the same height in order to support the outer lid 3 in a self-standing manner. Thereby, the heat insulation cooker can be made self-supporting with the leg portion 13A down, and the heat insulation cooker can be stored in a so-called vertical position.

  On the other hand, like the leg part 13B shown in FIG.12 (b), you may comprise by the three protrusion parts 13b which protruded from the outer peripheral surface of the lid side surrounding wall 9. As shown in FIG. In order to support the outer lid 3 in a self-supporting state, the three protrusions 13b are arranged at the same height so as to be positioned at each vertex of the triangle. Thereby, the heat insulation cooker can be made self-supporting with the leg part 13B downward, and the heat insulation cooker can be stored in a so-called vertical state.

  Further, the fixing device 14 is not limited to the case where the band member 15 or the plate-like member 22 described above is used, and the heat insulating container 2 is attached to the outer cover 3 in a state in which the heat insulating container 2 is stored inside the outer cover 3. Other fixing tools may be used as long as they can be fixed.

  DESCRIPTION OF SYMBOLS 1A, 1B, 1C, 1D ... Insulation cooker 2 ... Insulation container (vacuum insulation container) 3 ... Outer lid (insulation lid) 4 ... Cooking pot with lid (cooking container with lid) 5 ... Bottom wall 6 ... Container side peripheral wall 7 ... upper end opening 8 ... top wall 9 ... lid side peripheral wall 10 ... lower end opening 11 ... recess 12 ... knob 13, 13A, 13B ... leg 14 ... fixture 15 ... band member 16 ... guide groove 17 ... container body 18 ... Lid 19 ... Handle part 20 ... Arm part 21 ... Slit 22 ... Plate-like member 22a ... Holding plate part 22b ... Bending piece 22c ... Engagement part 23 ... Engagement part 24 ... Bottom member (expansion part)

Claims (13)

A heat insulating cooker that includes a vacuum heat insulating container and a heat insulating lid, and that heats and cooks the food in the cooking container with a lid by storing a heated cooking container with a lid inside the vacuum heat insulating container and the heat insulating lid. Because
The vacuum heat insulating container has a bottom wall and a container side peripheral wall that rises in a cylindrical shape from a peripheral portion of the bottom wall,
The heat insulating lid has a top wall and a lid side peripheral wall that falls in a cylindrical shape from a peripheral portion of the top wall,
With the inner surface of the bottom wall and the inner surface of the top wall facing each other, the vacuum heat insulating container can be stored inside the heat insulating lid, and the outer peripheral surface of the container side peripheral wall and the lid side peripheral wall With the inner peripheral surface overlapping each other, the interval between the inner surface of the bottom wall and the inner surface of the top wall is freely changeable ,
A cooking container with a lid accommodated inside the vacuum insulation container and the insulation lid;
In the state where the vacuum heat insulating container is housed inside the heat insulating lid, the interval is less than the height of the cooking container with the lid,
In the state which accommodated the cooking container with a lid inside the vacuum heat insulation container and the heat insulation lid, the above-mentioned space is more than the height of the cooking container with a lid, The heat-retaining cooker characterized by things.   The heat-insulating cooker according to claim 1, wherein an upper end portion of the container-side peripheral wall is brought into contact with an inner surface of the top wall in a state where the vacuum heat-insulated container is housed inside the heat-insulating lid. The vacuum heat insulating container has a diameter-expanded portion that is expanded from the outer diameter of the container-side peripheral wall on the lower end side of the container-side peripheral wall,
2. The heat retaining cooker according to claim 1, wherein a lower end portion of the lid-side peripheral wall is brought into contact with the enlarged diameter portion in a state where the vacuum heat insulating container is housed inside the heat insulating lid. The heat insulating lid has legs on the outer peripheral surface of the lid side peripheral wall,
The said leg part supports the said heat insulation lid | cover in the self-supporting state, The heat retention cooker as described in any one of Claims 1-3 characterized by the above-mentioned.   The heat retaining cooker according to claim 4, wherein a pair of the leg portions are provided to face the outer peripheral surface of the lid side peripheral wall.   The said heat insulation lid | cover is equipped with the fixing tool which fixes the said vacuum heat insulation container with respect to the said heat insulation lid | cover in the state accommodated in the inside of the said heat insulation lid | cover. Insulation cooker. The fixing device is a loop-shaped band member that is elastic in the circumferential direction,
By covering the vacuum heat insulating container and the heat insulating lid with the band member so that the circumferential direction of the band member is along the radial direction of the vacuum heat insulating container and the heat insulating lid, the vacuum heat insulating container is placed on the heat insulating cover. The insulated cooker according to claim 6, wherein The heat insulating lid has a recess provided in the center of the top surface of the top wall, and a knob provided in the center of the bottom surface of the recess,
The heat retaining cooker according to claim 7, wherein a height of the knob is equal to or less than a depth of the recess. The fixture is a long plate-like member that can be elastically deformed,
The plate-like member has a pair of bent pieces that are bent in the same direction on both sides in the longitudinal direction, and a pair of locking portions on the tip side of the pair of bent pieces,
With the plate-like member sandwiching the lid-side peripheral wall in the radial direction by the pair of bent pieces from the bottom wall side, the pair of locking portions are provided on a pair of outer peripheral surfaces of the lid-side peripheral wall. The heat insulation cooker according to claim 6, wherein the vacuum heat insulating container is fixed to the heat insulating lid by being locked to a locked portion. The cooking container with a lid includes a bottomed cylindrical container body, a lid that closes an upper surface opening of the container body, and a pair of handle portions that are attached to face the outer peripheral surface of the container body. The heat-retaining cooker according to any one of claims 1 to 9, wherein The heat retaining cooking according to claim 10 , wherein the handle is brought into contact with an inner surface of the top wall in a state where the cooking container with a lid is accommodated inside the vacuum heat insulating container and the heat insulating lid. vessel. The heat insulating lid has a slit cut upward from the lower end of the lid side peripheral wall,
The pair of handle portions are exposed to the outside of the heat insulating lid through the slit in a state where the cooking container with the lid is accommodated inside the vacuum heat insulating container and the heat insulating lid. 10. A warming cooker according to 10 . The handle part has a structure attached to the outer peripheral surface of the container body via an arm part,
The heat retention according to claim 12 , wherein the arm portion is in contact with an inner upper end portion of the slit in a state where the cooking vessel with a lid is accommodated inside the vacuum heat insulating container and the heat insulating lid. Cooking device.

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