JP2016129615A - rice cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rice cooker including an inner pot having a shape of a flanged pot, hardly cooling a flange part or an upper portion of the inner pot than the flange part, and being capable of preventing condensation.SOLUTION: The rice cooker includes: an inner pot; a rice cooker body including an inner pot accommodation part accommodating the inner pot; and a lid body closing an upper part of the rice cooker body to be covered. The inner pot includes: a bottom part; and a cylinder part arranged in an upper part of the bottom part and extended up to an opening edge of the inner pot. The cylinder part includes: a lower cylinder part accommodated in the inner pot accommodation part; and an upper cylinder part protruded upward from the inner pot accommodation part and extended up to the opening edge. In a lower edge of the upper cylinder part, a flange part is arranged which is protruded in an outer side so as to surround a periphery of the upper cylinder part. In an outer lid, a seal member is arranged which seals a gap between an upper face of the flange part and the outer lid in a state of the inner pot mounted in the rice cooker body.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a rice cooker that cooks cooked rice.

  2. Description of the Related Art Conventionally, there is a rice cooker having a so-called feather pot-shaped inner pot provided with a flange that protrudes outward from the outer peripheral surface of the inner pot (see, for example, Patent Document 1).

JP 2002-65457 A

In the conventional configuration, when the inner pot is stored in the rice cooker body, the upper part of the inner pot protrudes from the rice cooker body and closes with a lid from above, so that the inside of the rice cooker is inside. The pot is stored.
However, even when the rice cooker main body is closed with the lid, a gap is formed between the upper surface of the rice cooker main body and the lid (position where the rice cooker main body and the lid are aligned). The space surrounded by the lid where the inner pot portion above the bowl is located is in communication with the space outside the rice cooker through this gap.
Therefore, the outside air of the rice cooker, which is lower than the temperature inside the inner pot at the time of heat insulation, penetrates into the space in which the hook part and the inner pot part above the hook part are stored from this gap. There is a problem in that the portion of the inner hook above is cooled, causing condensation inside the inner hook.

  The present invention has been made to solve the above-described problems, and provides a rice cooker that is difficult to cool the ridge part and the portion of the inner pot above the ridge part and can prevent condensation. With the goal.

  In order to solve the above problems, in the rice cooker, the inner pot, the rice cooker main body having an inner pot accommodating portion for accommodating the inner pot, and a lid that closes to cover the upper portion of the rice cooker main body, The inner hook has a bottom portion and a cylindrical portion that extends to the opening end of the inner hook above the bottom portion, and the cylindrical portion protrudes upward from the inner hook accommodating portion and opens to the lower cylindrical portion that is accommodated in the inner hook accommodating portion. It is the structure containing the upper cylinder part extended to an edge part, The collar part which protrudes outward is formed in the lower end of an upper cylinder part so that the circumference | surroundings of an upper cylinder part may be enclosed, and a rice cooker is provided in an outer cover. In a state where the inner hook is mounted on the main body, a seal member is provided that closes a gap between the upper surface of the collar portion and the outer lid.

  ADVANTAGE OF THE INVENTION According to this invention, the rice cooker which can suppress that the temperature of the site | part of the inner hook in the upper part of a hook part or a hook part cannot cool easily, and can suppress that dew condensation arises inside an inner pot can be comprised.

The perspective view of the rice cooker 100 which concerns on Embodiment 1. FIG. XX sectional view in FIG. Enlarged view of portion Y in FIG. Perspective view of inner pot Sectional drawing of the principal part of the inner hook 5 which concerns on Embodiment 2 (a cross-sectional position applies to FIG. 1). It is principal part sectional drawing of the inner pot 5 which concerns on Embodiment 3 (a cross-sectional position is based on FIG. 1), Comprising: (a) The state which accommodated the inner pot in the rice cooker main body, (b) From the rice cooker main body to an inner pot When removed Enlarged view of portion Y in FIG.

  Embodiments of the present invention will be described below with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals, and the description thereof is omitted or simplified as appropriate. In addition, the shape, size, arrangement, and the like of the configuration described in each drawing can be changed as appropriate within the scope of the present invention.

Embodiment 1 FIG.
[rice cooker]
FIG. 1 is a perspective view of a rice cooker according to an embodiment of the present invention as viewed from obliquely above. 2 is a cross-sectional view taken along the line XX in FIG. 1, which is the center position of the inner hook 5 in the front-rear direction. FIG. 3 is an enlarged view of a portion Y in FIG. FIG. 4 is a perspective view of the inner hook as viewed obliquely from above.

As shown in FIG.1 and FIG.2, the rice cooker 100 which concerns on this embodiment has the rice cooker main body 1 which has the inner pot accommodating part 1a, and the inner pot 5 detachably installed in the inner pot accommodating part 1a. And a lid 2 that covers the upper portion of the rice cooker body 1.
The lid 2 is attached to the rice cooker body 1 so as to be freely opened and closed. The user can open the lid 2 by operating the lid opening button 2p, and can install the inner hook 5 in the inner hook accommodating portion 1a or take out the inner hook 5 from the inner pot accommodating portion 1a, for example. In addition, the user can, for example, close the lid 2 and cook an object to be cooked such as rice prepared in the inner pot 5.

[Inner pot]
As shown in FIG.2 and FIG.4, the inner hook 5 includes a bottom portion 5a, a cylindrical portion 5c extending to the opening end portion 5d above the bottom portion 5a, a corner portion 5b between the bottom portion 5a and the cylindrical portion 5c, It is a bottomed cylindrical cooking container. The inner hook 5 is formed, for example, by cutting out a baked carbon material.
The inner hook 5 may be formed of, for example, a metal such as iron, aluminum, or copper, or an alloy containing these, and in that case, is formed through processes such as casting and cutting.

The cylinder part 5c of the inner hook 5 of this embodiment includes a lower cylinder part 5c1 connected to the corner part 5b, and an upper cylinder part 5c2 extending to the opening end part 5d above the lower cylinder part 5c1.
The lower cylinder part 5c1 has an inner peripheral surface formed along the vertical direction. The upper cylinder part 5c2 is a part above the collar part 50 mentioned later, and has an inner peripheral surface gradually narrowed in the radial direction toward the upper opening end part 5d.

Further, the outer peripheral surfaces of the lower cylinder portion 5c1 and the upper cylinder portion 5c2 are formed in substantially the same shape as the respective inner peripheral surfaces. That is, the outer peripheral surface of the lower cylindrical portion 5c1 is formed in a substantially straight shape along the vertical direction, and the outer peripheral surface of the upper cylindrical portion 5c2 is radially directed from the lower side toward the upper opening end portion 5d. It is gradually narrowed and formed.
That is, the inner hook 5 has a substantially bowl-shaped outer shape whose upper end portion is formed smaller than the maximum diameter of the inner hook 5.

  Moreover, the collar part 50 is provided in the outer peripheral surface of the inner hook 5 and the position which hits the lower end of the upper cylinder part 5c2. That is, the upper cylinder part 5c2 is above the flange part 50. The flange portion 50 protrudes outward from the outer peripheral surface of the upper tube portion 5c2, and has a ring shape surrounding the periphery of the tube portion 5c (upper tube portion 5c2). The cylinder part 5c (upper cylinder part 5c2) is located above the collar part 50, and the inner space of the inner hook 5 is formed above the collar part 50 inside the inner hook 5.

That is, the outer shape of the inner hook 5 has a so-called feather pot shape in which the flange portion 50 projects and surrounds from the outer peripheral surface toward the periphery.
Further, the inner peripheral surface of the inner hook 5 is gradually narrowed in the radial direction from the lower side toward the upper opening end 5d. The height h1 from the lower part of the flange 50 to the opening end 5d is 15% or more of the height h from the inner bottom of the inner hook 5 to the opening end 5d.

[Rice cooker body]
As shown in FIG.1 and FIG.2, the rice cooker main body 1 has the inner pot accommodating part 1a with which the upper part was opened. The upper end of the inner hook accommodating portion 1a constitutes a hook support portion 1a1 that supports the hook portion 50 of the inner hook 5 from below. A ring-shaped inner hook seal member 1a2 that is in contact with the lower side of the hook portion 50 of the inner hook 5 is disposed on the hook support portion 1a1.
The inner hook seal member 1a2 seals between the lower side of the flange portion 50 and the flange support portion 1a1, and is formed of an elastic material such as silicon resin, for example. When the inner pot 5 is installed in the rice cooker main body 1, the space between the outside of the inner pot 5 and the inner side of the inner pot accommodating portion 1 a is sealed below the flange portion 50 of the inner pot 5.

The rice cooker body 1 has a main heating means 7, a temperature sensor 8, and a control unit 10.
The temperature sensor 8 detects the temperature in the vicinity of the center of the bottom portion 5a of the inner hook 5, and is composed of, for example, a thermistor. The control unit 10 performs operations of various components constituting the rice cooker 100 such as the main heating unit 7 and a main body display unit 4 described later based on an input from operating the operation unit 3 described later and an input from the temperature sensor 8. For example, the control unit includes a CPU or a dedicated IC. In addition, the control part 10 is provided in the main body rear part in this Embodiment.

The main heating means 7 heats the inner pot 5 and operates based on an instruction from the control unit 10. The main heating means 7 includes, for example, a bottom heating means 7a, a corner heating means 7b, and a lower cylinder heating means 7c. The bottom heating means 7a heats the bottom 5a of the inner pot 5. The corner part heating means 7b heats the corner part 5b of the inner hook 5.
In the example of this embodiment, the bottom heating means 7a and the corner heating means 7b are constituted by induction coils. However, the bottom heating means 7a and the corner heating means 7b are constituted by heating wires or the like. May be. The lower cylinder part heating means 7c heats the lower cylinder part 5c1 of the inner hook 5, and is composed of, for example, a cord heater.

[Lid]
As shown in FIGS. 1-3, the cover body 2 has the outer cover 2a and the inner cover 2b. The outer lid 2a covers the top of the rice cooker body 1. The outer lid 2a is attached to the rice cooker body 1 so as to be openable and closable behind the rice cooker body 1 by a connecting mechanism 6 such as a hinge 6. In addition, the cover body 2 of this Embodiment is pivotally supported by the rice cooker main body 1 via the hinge 6, and force is applied by the spring force in the direction which the cover body 2 opens with the hinge spring provided with the hinge 6. Yes. Therefore, when the user operates the lid opening button 2p to release the locked state of the lid body 2 and the rice cooker body 1, the lid body 2 moves in the direction of arrow H in FIG. To do.

An operation unit 3 and a main body display unit 4 are provided on the upper surface of the outer lid 2a.
The operation unit 3 gives instructions to the rice cooker 100, and is configured by, for example, a touch sensor. The user can operate the operation unit 3 to give instructions for selecting a cooking menu, setting a cooking time, and the like.
The main body display unit 4 displays an operation state and the like of the rice cooker 100, and is composed of, for example, a liquid crystal panel. The operation unit 3 and the main body display unit 4 may be configured by a touch panel in which these are integrally formed.

Inside the outer lid 2a, there is provided a pressure adjusting means 60 for adjusting the pressure by reducing or increasing the pressure (pressure) inside the inner hook 5 sealed by the inner lid 2a.
The pressure adjusting means 60 communicates with the internal space of the inner pot 5 through the space in the inner lid 2a, and appropriately changes the internal pressure of the inner pot 5 according to the rice cooking process during rice cooking. It is for adjusting the cooking of rice.

  An inner lid 2b is detachably attached to the lower surface of the outer lid 2a. The inner lid 2b covers the opening of the inner hook 5, and a ring-shaped inner hook seal member 12 is disposed on the lower surface side of the inner lid 2b. When the lid 2 is closed, the inner hook seal member 12 comes into contact with the opening end 5d of the inner hook 5 and seals between the opening end 5d of the inner hook 5 and the inner lid 2b. . The inner hook seal member 12 is formed of an elastic material such as silicon resin, for example.

  In addition, a steam hole 2b1 is formed in the inner lid 2b. An opening / closing valve 11 is provided in the steam hole 2b1 of the inner lid 2b. The on-off valve 11 is moved up and down by the pressure inside the inner hook 5. A part of the steam generated during rice cooking or the like passes through the steam hole 2b1 and is guided to the cartridge 20 installed above the inner lid 2b.

The cartridge 20 is mounted on the outer lid 2a above the inner lid 2b. The cartridge 20 separates the steam containing the rice cake component at the time of rice cooking into the rice cake ingredient and the steam, guides the separated steam to the outside of the rice cooker 100, and returns the rice cake component to the inside of the inner pot 5 It is.
In other words, the steam including the component that has passed through the steam hole 2b1 of the inner lid 2b flows into the cartridge 20 from the inflow portion (not shown) of the cartridge 20, and is separated into the component and the steam in the cartridge 20. The separated steam is discharged from the steam discharge section 20b.

Here, the outer lid 2a has a concave shape that opens downward, and a space 2d is formed above the outer lid lower end portion 2c that is a portion constituting the lower end of the lid 2. The inner lid 2b is the lower surface of the outer lid 2a and is provided in the space 2d.
Thus, the lid body 2 has a cup shape that opens downward, and the downward opening is configured in a circular shape that allows the inner hook 5 to enter and leave the space 2d from the opening end 5d.
The outer lid lower end portion 2c is a portion facing the rice bran support portion 1a1 of the rice cooker body 1 in a state where the lid 2 closes the upper surface of the rice cooker body 1, and is a concave opening facing downward of the outer lid 2a. A heel seal member 70 is provided so as to surround the. The collar seal member 70 is made of an elastic material such as silicon resin.

[Installation of the inner pot on the rice cooker body]
The state which installed the inner pot 5 comprised as mentioned above in the rice cooker main body 1, and closed the cover body 2 is demonstrated.
As shown in FIGS. 2 and 3, when the inner pot 5 is installed in the rice cooker body 1, the lower portion of the hook portion 50 of the inner pot 5 comes into contact with the hook support portion 1a1 at the upper end of the inner pot receiving portion 1a. The inner hook 5 is supported by the hook support portion 1a1.
That is, the lower cylinder part 5c1 located on the lower side of the collar part 50 is accommodated in the inner hook accommodating part 1a, and the upper cylinder part 5c2 located above the lower surface of the collar part 50 is located upward from the inner pot accommodating part 1a. Protruding.

When the lid 2 is closed to the rice cooker main body 1, the upper cylindrical portion 5c2 positioned above the lower surface of the bowl 50 enters the space 2d of the outer lid 2a, and the inner pot seal member 12 is The opening end 5d is closed, and the opening of the inner hook 5 is closed by the inner lid 2a.
At this time, the heel seal member 70 comes into contact with the upper surface of the heel section 50 supported by the heel support section 1a1. The part where both the members contact is in contact with and sealed over the front periphery of the collar part 50 so that the collar seal member 70 surrounds the outside of the opening of the inner hook 5.

As described above, the inner pot 5 is housed inside the rice cooker body 1, the lid 2 closes the upper surface of the rice cooker body 1, and the heel seal member 70 is provided on the upper lid 2 outside the opening of the inner pot 5. Between the space 2d in which the upper tube portion 5c2 is located and the alignment gap 14 formed at the alignment position of the rice cooker body 1 and the lid body 2 The communicating part is sealed.
That is, in the portion from the gap 14 to the space 2d, the space 2d is sealed from the outside of the rice cooker 100, and the heat of the space 2d is difficult to escape from the gap 14 to the outside of the rice cooker 100.
Thereby, it becomes possible to suppress the temperature drop of the flange 50 and the upper cylindrical portion 5c2 on the upper side of the flange 50, and the occurrence of condensation on the inner surface of the upper cylindrical portion 5c2 inside the inner hook 5 is suppressed. The rice cooker 100 which can be comprised can be comprised.

Embodiment 2
Next, the rice cooker 100 which concerns on Embodiment 2 is demonstrated. Note that the same components as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted. The second embodiment is a modification of the heel seal member.
Referring to FIG. 5, a flange seal member 80 is provided at the lower end 2 c of the outer lid as in the first embodiment. The heel seal member 80 is in contact with the upper surface of the heel portion 50, spreads toward the outside of the rice cooker 100, and has a shape having a pleated portion 80 a reaching the outside of the heel portion 50.

  Such a shape of the heel seal member 80 improves the sealing effect of the portion extending from the gap 14 to the space 2d, and can suppress heat radiation from the outside of the heel portion 50. It is possible to suppress a decrease in the temperature of the upper cylindrical portion 5c2 on the upper side of the rice cooker 100, and the rice cooker 100 that can suppress the occurrence of condensation on the inner surface of the upper cylindrical portion 5c2 inside the inner pot 5 is configured. be able to.

Embodiment 3
Next, the rice cooker 100 which concerns on Embodiment 3 is demonstrated. Note that the same components as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.
FIG. 6A is an enlarged view of a main part of a cross-sectional view showing a state in which the inner pot 5 is housed inside the rice cooker 100. FIG. 6B is an enlarged view of a main part of a cross-sectional view showing a state where the inner pot 5 is removed from the inside of the rice cooker 100 and the lid 2 is closed to the rice cooker body 1. FIG. 7 is an enlarged view of a Y portion in FIG.

Referring to FIG. 6 (a), as in the first embodiment, the collar seal member 90 is in contact with the upper surface of the collar section 50 and is in a state of sealing the portion from the gap 14 to the space 2d. It is in a state where it is possible to suppress a decrease in the temperature of the bowl 50 during the rice cooking operation or the warming operation or the upper cylinder part 5c2 above the bowl 50.
Next, referring to FIG. 6B and FIG. 7, in the present embodiment, when the inner pot 5 is not housed inside the rice cooker body 1, the rice cake seal member 90 reaches the space 2 d from the gap 14. It is comprised so that a part may not be sealed. For example, when the gap D1 in the vertical direction of the gap 14 is an amount D2 that the heel seal member 90 protrudes downward from the lower end 2c of the outer lid, D1> D2.

Thus, in the state where the inner pot 5 is not attached to the rice cooker main body 1, the gap 14 is not sealed by the rice cake seal member 90, and the inside and outside of the rice cooker 100 are connected via the gap 14. It is in a state where ventilation is possible.
In this way, if the rice cooker 100 is not in use, if the inner pot 5 is removed, the lid 2 is closed and the ventilation between the inside and the outside of the rice cooker 100 is ensured. Can do.

In particular, the inside of the rice cooker 100 can be dried by operating the main heating means 7 and the inner lid heater (not shown) for heating the inner lid 2a, which is not the induction heating method. Moreover, the pressure adjusting means 60 can be operated to discharge the internal air from the gap 14 or take in fresh air from the gap 14, and the inside of the rice cooker 100 can be cleaned. That is, the inside of the rice cooker can be cleaned by using the pressure adjusting means 60 as a ventilation means for ventilating the inside of the rice cooker 100.
Moreover, the scissor seal member 90 can be removed and cleaned by being detachably attached to a recess opening downwardly at the lower end 2c of the outer lid.

  DESCRIPTION OF SYMBOLS 1 Rice cooker main body, 1a Inner pot accommodating part, 1a1 Rice bran support part, 1a2 Inner pot seal member, 2 Cover body, 2a Outer cover, 2b Inner cover, 2b1 Steam hole, 3 Operation part, 4 Main body display part, 5 Inner pot 5a bottom part, 5b corner part, 5c cylinder part, 5c1 upper cylinder part, 5c2 lower cylinder part, 5d open end part, 6 connecting mechanism, 7 heating means, 7a bottom part heating means, 7b corner part heating means, 7c lower cylinder part Heating means, 8 Temperature sensor, 10 Control section, 11 Open / close valve, 12 Seal member, 13 Heat radiation space, 14 Air passage, 20 Cartridge, 20b Steam discharge section, 50 collar section, 60 Pressure regulation section, 70, 80, 90 Seal member, 54 display part, 30 upper cylinder part heating means, 100 rice cooker

Claims (5)

An inner pot, a rice cooker body having an inner pot accommodating portion that accommodates the inner pot, and a lid that covers the upper portion of the rice cooker body;
The inner hook has a bottom portion and a cylindrical portion that extends to the opening end of the inner hook above the bottom portion, and the cylindrical portion is accommodated in the inner hook accommodating portion, and the inner pot accommodating The upper cylindrical portion that protrudes upward from the portion and extends to the opening end,
At the lower end of the upper cylinder part, a collar part protruding outward is formed so as to surround the periphery of the upper cylinder part,
The rice cooker characterized in that the outer lid is provided with a sealing member that closes a gap between the upper surface of the bowl and the outer lid when the inner pot is mounted on the rice cooker body.   The rice cooker according to claim 1, wherein the sealing member has a shape extending from an upper surface to a side surface of the heel portion. In the state where the inner pot is removed from the rice cooker body, and the outer lid is closed to the rice cooker body,
The rice cooker according to claim 1, wherein a gap is formed between the seal member and the rice cooker body. Has ventilation means to ventilate the interior,
The rice cooker according to claim 3, wherein the ventilation means is driven when the inner pot is removed from the rice cooker body.   The rice cooker according to claim 4, wherein the ventilation means is a pressure adjusting means for adjusting a pressure inside the inner pot.