JP2013180093A - Heating cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To securely prevent heat dissipation of a flange of an inner container without hindering the inner container from being taken out.SOLUTION: A heating cooker includes: an inner container 11 having a flange 13; a cooker body 14 having an inner container accommodating part 16 and heating means 18 for heating the inner container 11; and a lid 25 for sealing the opening of the inner container 11. The cooker is provided with: a heat dissipation preventing frame 47 located on the periphery of the flange 13 of the inner container 11; and a moving mechanism (elastic member 54 or receiving member 61) configured to move the inner container 11 and the heat dissipation preventing frame 47 relative to each other such that when the cooker comes to a protective state, the upper end 47a of the heat dissipation preventing frame 47 is located above or in substantially the same plane as the flange 13 of the inner container 11, and when the cooker comes to a non-protective state, the upper end 47a of the heat dissipation preventing frame 47 is located below the flange 13 of the inner container 11.

Description

  The present invention relates to a heating cooker such as a rice cooker or an electromagnetic cooker.

  This type of heating cooker includes a cooker main body that detachably accommodates an inner container, and a lid that closes an upper end opening of the inner container accommodated in the cooker main body. The cooker main body is provided with an inner container housing portion for placing the inner container inside the outer body, and between the outer body and the inner container housing portion, a heating means for heating the inner container, a control board, etc. Contains parts. In the inner container, a flange portion that is placed on the opening at the upper end of the inner container housing portion protrudes radially outward. The user attaches or removes the inner container to / from the rice cooker body with the flange portion.

  However, in the cooking device, the heat of the heated food is transferred from the outer peripheral wall portion of the inner container to the flange portion, and is dissipated from the flange portion exposed on the inner container housing portion, so that useless power is consumed. In addition, there is a problem that the heat insulation efficiency is deteriorated.

  Then, in the rice cooker of patent document 1, it is set as the structure which arrange | positions the cyclic | annular frame formed in the outer periphery of the opening part of an inner container accommodating part, and mounts the flange part of an inner container on this frame. The frame is formed of a resin having high heat resistance, and includes a support portion that supports the lower surface of the flange portion of the inner container, and a rising piece that is positioned outside the outer peripheral portion of the flange portion.

  However, although the rice cooker of this patent document 1 can achieve the purpose of suppressing heat dissipation from the inner container, there is a problem in that it is difficult to take out the inner container from the inner container accommodating portion, and thus the convenience is poor. In addition, in order to prevent this problem, there is described a configuration in which a notch is provided, or a frame body is configured with two or more parts and arranged with a gap between each other. The effect of preventing heat dissipation is diminished.

JP 2010-75521 A

  This invention makes it a subject to provide the heating cooker which can prevent reliably the thermal radiation from the flange part of an inner container, without impairing the taking-out operation | work of an inner container.

  In order to solve the above-mentioned problems, a heating cooker according to the present invention has an inner container having a flange portion projecting outward at an upper end opening, and an inner container accommodating portion having an upper end opening for detachably accommodating the inner container. A cooker body having a heating means for heating the inner container disposed in the inner container housing section, and a lid body disposed in the cooker body so as to be openable and closable and sealing the opening of the inner container. In the heating cooker, a heat dissipation prevention frame having a circular shape in plan view located on the outer periphery of the flange portion of the inner container is provided on the outer periphery of the opening of the inner container housing portion of the cooker body, and the lid When the body is closed or the inner container containing the food is in a protected state accommodated in the inner container accommodating portion, the upper end of the heat dissipation prevention frame is positioned above or on the same plane as the flange portion of the inner container. The lid is When the inner container that does not store the release or cooked food is in an unprotected state accommodated in the inner container accommodating portion, the upper end of the heat dissipation prevention frame is positioned below the flange portion of the inner container, A moving mechanism for moving at least one of the inner container and the heat dissipation prevention frame relative to the other is provided.

  This heating cooker is provided with a heat dissipation prevention frame so as to be positioned on the outer peripheral portion of the flange portion of the inner container, and at least one of the inner container and the heat dissipation prevention frame is movable relative to the other. In the protected state in which the lid is closed, or in the protected state in which the inner container containing the food is placed in the inner container housing part, the upper end of the heat dissipation prevention frame is positioned above or on the same plane as the flange part of the inner container. Therefore, it is possible to reliably prevent heat dissipation from the flange portion in this protected state. On the other hand, in the unprotected state with the lid open or the unprotected state in which the inner container that does not contain the food is placed in the inner container housing part, the upper end of the heat dissipation prevention frame is positioned below the flange part of the inner container. Since the flange portion is exposed, the workability of taking out the inner container can be improved. In addition, the non-protection state in which the inner container that does not contain the cooked food is arranged means that all or almost all the cooked food in the inner container has been eliminated by using the cooked food in the inner container, and no heat dissipation prevention measures are required. Intended state.

In this heating cooker, in order to move the inner container relative to the heat dissipation prevention frame, the flange portion of the inner container is placed on the upper side as the moving mechanism, and is elastic in the protected state. It is preferable to provide an elastic member that moves the inner container downward by simple compression and moves the inner container upward by elastic restoration in the unprotected state. In this way, the inner container can be reliably moved relative to the heat dissipation prevention frame with a simple configuration.
In addition, in this structure, even if the inner container which accommodated the foodstuff is arrange | positioned in an inner container accommodating part, the elastic member of the elasticity modulus which only compresses elastically only to the extent that a flange part is located upwards rather than the upper end of a heat-radiation prevention frame When the cover is used, the lid is protected by closing the lid, and the lid is opened to be unprotected. In addition, when the inner container that contains the food is disposed in the inner container accommodating portion, an elastic member having an elastic modulus that is elastically compressed to such an extent that the flange portion is positioned below or on the same plane as the upper end of the heat dissipation prevention frame is used. If the food is stored in the inner container containing the cooked food, it is in a protected state.

  In this case, in the protected state in which the elastic member is compressed, it is preferable that the inner peripheral portion press-contacts the lower outer peripheral wall portion of the flange portion of the inner container. If it does in this way, when it will be in a protection state, an inner container can be located in the center of an inner container accommodating part. Therefore, the inner container can be heated evenly by the heating means. Moreover, it can prevent that an inner container rotates or moves within an inner container accommodating part. Therefore, the convenience at the time of reading the food in an inner container can be improved.

Further, in order to move the heat dissipation prevention frame relative to the inner container, the heat dissipation prevention frame is disposed in the cooker body so as to be able to appear and retract, and the lid or the inner container is used as the moving mechanism. In the protected state, it moves from the non-operating position to the operating position by the contact and moves the heat radiation prevention frame upward, and in the non-protected state, the non-contacting state moves from the operating position to the non-operating position. It is preferable to provide a passive member for moving the heat dissipation prevention frame downward. In this way, the heat radiation prevention frame can be reliably moved relative to the inner container.
In this configuration, when the passive member is moved to the operating position by contact with the lid or the lock member provided on the lid, the lid is protected due to the closure, and the lid is not opened when the lid is opened. Protected state. Moreover, when it is set as the structure which a passive member moves to an operation position by contact | abutting with an inner container, it will be in a protection state by arrangement | positioning of an inner container, and will be in a non-protection state by removal of an inner container. Furthermore, by further disposing the biasing member on the passive member, it is possible to switch between the protected state and the unprotected state depending on the presence or absence of the cooked food in the inner container.

  Furthermore, it is preferable to provide a gripping space portion located on the lower side of the outer peripheral edge of the flange portion of the inner container in the unprotected state. In this way, the convenience when taking out the inner container in an unprotected state can be further improved.

  In the cooking device of the present invention, the flange portion of the inner container is covered with a heat dissipation prevention frame in the protected state, and the flange portion of the inner container can be exposed in the non-protected state, so that the workability of taking out the inner container is not impaired. Heat radiation from the flange portion can be surely prevented.

It is a longitudinal cross-sectional view which shows the non-protection state of the rice cooker of 1st Embodiment of this invention. It is a longitudinal cross-sectional view which shows the protection state of the rice cooker of 1st Embodiment. FIG. 3 is a cross-sectional view of FIG. 2. (A), (B), (C) is a principal part expanded sectional view which shows the transition from a non-protection state to a protection state. (A), (B), (C) is a principal part expanded sectional view which shows the transition from the non-protection state to the protection state in the rice cooker of the modification of 1st Embodiment. It is a longitudinal cross-sectional view which shows the non-protection state of the rice cooker of 2nd Embodiment. It is a longitudinal cross-sectional view which shows the protection state of the rice cooker of 2nd Embodiment. (A), (B) is a principal part expanded sectional view which shows the transition from the non-protection state to the protection state in the rice cooker of 2nd Embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(First embodiment)
1 and 2 show a rice cooker 10 that is a heating cooker according to a first embodiment of the present invention. The rice cooker 10 includes an inner pot 11 that is an inner container having a circular shape in plan view, a rice cooker body 14 that detachably houses the inner pot 11, and a lid 25 that is rotatably attached to the rice cooker body 14. And.

  The inner pot 11 has a bottomed cylindrical shape that closes the lower end of the substantially cylindrical outer peripheral wall portion 12 and opens the upper end, and the cooked rice is set together with water in the rice cooker body 14. Is to be accommodated. The inner pot 11 is provided with a flange portion 13 located above the opening 41 of the inner pot accommodating portion 16 in a state of being accommodated in the rice cooker body 14 so as to protrude radially outward. The inner pot 11 is heated by electromagnetic induction by causing an eddy current to flow by a generated magnetic field by passing a high-frequency current through an induction heating coil 18 described later.

  The rice cooker main body 14 includes an inner pot accommodating portion 16 that detachably accommodates the inner pot 11 inside the outer body 15. The space between these exterior body 15 and the inner pot accommodating part 16 comprises the components accommodating part 17 which accommodates each component for performing a rice cooking process and a heat retention process. An induction heating coil 18, which is a heating means, is disposed in the component housing portion 17 via a ferrite core 19 so as to be positioned below the inner pot housing portion 16. Further, a temperature sensor 20 for detecting the temperature of the inner pot 11 is disposed on the rear side of the component housing portion 17. Further, a control board 21 is disposed in a wide space on the front side of the component housing portion 17, and a cooling fan 22 is disposed on the front side thereof. An operation panel 23 is provided on the upper front side of the exterior body 15, and an operation board 24 is disposed so as to be positioned inside the operation panel 23.

  The lid body 25 is attached to the rice cooker body 14 so as to be openable and closable so as to close the upper portion of the inner pot accommodating portion 16. An inner lid 26 that seals the upper end opening of the inner pot 11 is disposed on the surface of the lid 25 that faces the inner pot 11. The lid 25 is provided with an exhaust passage 27 that allows the inside of the inner pot 11 to communicate with the outside, and a reed valve 28 that can block the exhaust passage 27 is disposed on the inlet side. In the reed valve 28, when the rod is retracted by driving the solenoid 29, the ball member 28a closes the vent hole by rolling and shuts off the exhaust passage 27. Thereby, the inside pot 11 can be boosted to a pressure higher than the atmospheric pressure. On the other hand, when the rod of the solenoid 29 is advanced, the ball member 28a is separated from the vent hole, and the exhaust passage 27 is opened (communication). Thereby, the pressure in the inner pot 11 and atmospheric pressure are balanced.

  The lid 25 is provided with an operation member 30 for opening operation on the front side. The operation member 30 includes a lock release operation portion 31 exposed on the surface, and a pressing portion 32 for rotating the lock member 33 in the engagement release direction on the inner surface side thereof. The operation member 30 is biased upward by a kick spring (not shown). The lock member 33 is rotatably attached to the lid body 25 and includes a receiving portion 34 that extends obliquely upward in the rear side and abuts the pressing portion 32 of the operation member 30. The locking member 33 is provided with a locking claw portion 35 for maintaining the lid 25 in a closed state with respect to the rice cooker body 14. And the locking member 33 is urged | biased by the direction which the latching claw part 35 engages with the rice cooker main body 14 with the kick spring which is an urging means (not shown).

  This rice cooker 10 controls the induction heating coil 18 and the solenoid 29 based on the detected value of the temperature sensor 20 by a microcomputer mounted on the control board 21 to maintain a preheating temperature that promotes water absorption into the rice. The rice cooking process which has the temperature rising (medium patch) process which boils the inside of the inner pot 11, the boiling maintenance process which maintains the inside of the inner pot 11 at a boiling temperature, and the steaming process which steams the cooked cooked rice is performed. Moreover, when a rice cooking process is complete | finished, the heat retention process which maintains a cooked rice at the set heat retention temperature continuously will be performed. In the rice cooking process that cooks cooked rice and the heat-retaining process that keeps the cooked cooked rice warm, the heat heated by the induction heating coil 18 is located outside the inner pot housing part 16 from the outer peripheral wall part 12 of the inner pot 11. Heat is transferred to the portion 13 and is radiated from the flange portion 13 to the outside of the inner pot 11.

  So, in the rice cooker 10 of this embodiment, the heat radiation prevention frame 47 located in the outer peripheral part of the flange part 13 is provided in the outer periphery of the opening part 41 of the inner pot accommodating part 16. FIG. Here, basically, the state requiring the heat radiation prevention measure is a state in which the lid body 25 is closed, and the state requiring no heat radiation prevention measure is a state in which the lid body 25 is opened. Therefore, the flange portion 13 is covered in the protection state where the heat dissipation prevention measure is necessary, and the flange portion is not protected in the non-protection state where the heat dissipation prevention measure is unnecessary, so that the workability of attaching and detaching the inner pan 11 is not impaired in the state where the heat dissipation prevention measure is unnecessary. The inner pot 11 is configured to be movable relative to the heat dissipation prevention frame 47 by a moving mechanism so that the heat release 13 can be exposed.

  Specifically, the exterior body 15 includes a cylindrical body 36, a bottom body 37 disposed at the lower end of the body 36, and a shoulder body 39 disposed at the upper end of the body 36. The body 36 has a cylindrical shape in which the width dimension in the left-right direction is smaller than the depth dimension in the front-rear direction. The body 36 is formed in a substantially oval shape in plan view by bending a thin stainless steel plate. The bottom body 37 is made of resin and closes the lower end opening of the body 36. The bottom body 37 has a saucer shape, and a lower rib 38 that supports the inner periphery of the body 36 is formed on the outer periphery of the upper end. The shoulder 39 is made of resin and closes the upper end opening of the body 36. The shoulder body 39 is formed with an upper rib 40 that maintains the inner periphery of the body 36 at the outer periphery of the lower end. The exterior body 15 is assembled in a state where the body 36 is sandwiched between the exterior body 15 by screwing it to the shoulder body 39 through a boss (not shown) provided on the bottom body 37.

  An opening 41 for detachably placing the inner pot 11 is provided at the center of the shoulder body 39, and the inner pot accommodating portion 16 is formed below the opening 41. The inner pot accommodating portion 16 includes an inner trunk 44 disposed below the opening 41 and a protective frame 45 disposed at the lower end of the inner trunk 44. And in this embodiment, the upper frame part 42 which comprises the upper end of the inner pot accommodating part 16 is integrally molded by the shoulder body 39. As shown in FIG. The upper frame portion 42 has a cylindrical shape, and an upper support portion 43 for supporting the outer periphery of the upper end of the inner body 44 is provided at the lower end edge thereof. The inner cylinder 44 is formed in a cylindrical shape by bending a stainless steel plate. The protective frame 45 is made of resin (non-conductive material) and is formed in a tray shape that closes the lower end portion of the inner body 44. A lower support 46 is provided at the upper edge of the protective frame 45 to support the outer periphery of the lower end of the inner body 44.

  The shoulder body 39 of the present embodiment is integrally provided with a heat dissipation prevention frame 47 erected upward. The heat dissipation prevention frame 47 is provided with an inner diameter larger than the outer diameter of the flange portion 13 so as to surround the outer periphery of the flange portion 13 of the inner pot 11 disposed in the inner pot accommodating portion 16. The heat radiation prevention frame 47 is formed such that the total height from the bottom of the inner pot accommodating portion 16 to the upper end 47 a is higher than the total height of the inner pot 11.

  The heat radiation prevention frame 47 is provided with a latch receiving portion 48 on the front side for releasably latching the lock member 33 of the lid 25. The latch receiving portion 48 is erected so as to be positioned on the rear side with a predetermined interval with respect to the operation panel 23, and an entry portion 49 into which the latch claw portion 35 of the lock member 33 enters is provided therebetween. A locking hole 50 for locking the locking claw portion 35 of the lock member 33 is provided so that the side of the entry portion 49 is opened. Further, in the present embodiment, the heat insulating wall 51 is provided on the outer side with a predetermined interval with respect to the wall surface of the heat dissipation prevention frame 47 over the rear side and the left and right sides excluding the front side where the locking receiving portion 48 is formed. . Thereby, the heat insulation space part 52 is formed in the rear side and the left-right both sides with a small clearance with the exterior body 15.

  Between the opening part 41 of the inner pot accommodating part 16 and the heat dissipation prevention frame 47, an annular arrangement part 53 having a step shape is formed. In the annular arrangement portion 53, an elastic member 54 is provided as a moving mechanism for moving the inner pot 11 relative to the heat dissipation prevention frame 47. The elastic member 54 is made of a heat-resistant rubber material, has an annular shape having an inner diameter substantially the same as the inner diameter of the opening 41, and the flange portion 13 of the inner pot 11 is placed on the upper side. Is held in the inner pot accommodating portion 16 in a suspended state. The elastic member 54 is elastically compressed when a predetermined load F is applied downward via the inner pot 11 and is elastically restored (extended) when the load F is released (when the load becomes less than F). The upper end of the elastic member 54 protrudes upward from the upper end 47a of the heat dissipation prevention frame 47 in the non-compressed state, and is in a state of being recessed below the upper end 47a of the heat dissipation prevention frame 47 in the compression state. A chamfered portion 55 for reducing the contact area with the flange portion 13 is provided at a portion protruding from the heat dissipation prevention frame 47 in an uncompressed state. The chamfered portion 55 serves to form a gripping space portion 56 below the outer peripheral edge of the flange portion 13.

  The elastic member 54 of the present embodiment is arranged in the state where the cooked rice and water for full rice cooking are accommodated in the inner pot 11 and the inner pot 11 is arranged in the inner pot accommodating portion 16 as shown in FIG. In addition, an elastic modulus having a weight (load F1) that is elastically compressed only to such an extent that the flange portion 13 is positioned above the upper end 47a of the heat radiation prevention frame 47 is used. Also, as shown in FIGS. 2 and 3, a material having an elastic modulus that is elastically compressed when a downward pressing force (load F2) is applied by closing the lid body 25 is used (F1 <F <F2). . In this compressed state, the upper end of the flange portion 13 of the inner pot 11 placed on the upper side is positioned below the upper end 47 a of the heat dissipation prevention frame 47. In the compressed state, the inner peripheral portion that bulges inward due to elastic deformation is configured to be in pressure contact with the outer peripheral wall portion 12 of the inner pot 11.

  In the rice cooker 10 configured as described above, the elastic member 54 prevents heat dissipation as shown in FIG. 4A when the lid 25 is opened and the inner pot 11 is not disposed in the inner pot accommodating portion 16. A state of projecting upward from the frame 47 is formed. In addition, when a predetermined amount of cooked rice and water is set in the inner pot 11 and the inner pot 11 is disposed in the inner pot accommodating portion 16, the elastic member 54 has a heat dissipation prevention frame 47 as shown in FIG. The state where it protrudes further upward is maintained, and the flange portion 13 is in an unprotected state positioned above the heat dissipation prevention frame 47. Then, when the lid 25 is closed, the inner lid 26 seals the inner peripheral portion of the upper end opening of the inner pot 11 and presses the inner pot 11 downward, so that it is elastic as shown in FIG. The member 54 is compressed, the inner pot 11 is moved downward, and the flange portion 13 is in a protected state positioned below the upper end 47 a of the heat dissipation prevention frame 47. On the other hand, when the lid body 25 is opened, the downward pressing on the inner pot 11 is released. Therefore, as shown in FIG. 4B, the elastic member 54 is elastically restored, so that the inner pot 11 faces upward. The flange portion 13 is moved to be in an unprotected state in which the flange portion 13 is positioned above the upper end 47 a of the heat dissipation prevention frame 47.

  Thus, the rice cooker 10 of this embodiment makes the protection state which covered the flange part 13 of the inner pot 11 with the heat dissipation prevention frame 47 by obstruction | occlusion of the cover body 25, and the flange part of the inner cover 26 by open | release of the cover body 25. Since 13 is in an unprotected state exposed upward from the heat radiation prevention frame 47, heat radiation from the flange portion 13 can be reliably prevented without impairing the workability of taking out the inner pot 11.

  Moreover, in this embodiment, since the moving mechanism for moving the inner pot 11 relative to the heat dissipation prevention frame 47 is constituted by the elastic member 54 on which the flange portion 13 of the inner pot 11 is placed, The inner pan 11 can be reliably moved relative to the heat dissipation prevention frame 47 with a simple configuration. And since the inner peripheral part which deform | transformed in the compressed protection state is the elastic member 54 is the structure which press-contacts to the outer peripheral wall part 12 of the inner pot 11, the inner pot 11 is made into the center of the inner pot accommodating part 16 in this state. Can be positioned. Therefore, the inner pot 11 can be evenly heated by the induction heating coil 18. And since it is comprised so that the space part 56 for holding may be formed in the outer peripheral periphery lower side of the flange part 13 of the inner pot 11 in a non-protection state, the convenience at the time of taking out the inner pot 11 can further be improved. .

(Modification of the first embodiment)
FIG. 5 shows a rice cooker 10 according to a modification of the first embodiment. This modification is different only in that the change timing of the protection state and the non-protection state is changed by changing the elastic modulus of the elastic member 54. Specifically, as described above, the state requiring the heat radiation prevention measure is a state in which the lid body 25 is closed, and the state requiring no heat radiation prevention measure is a state in which the lid body 25 is opened. However, even when the lid 25 is opened, if the cooked rice remains in the inner pot 11, heat dissipation prevention measures may be taken. Therefore, in this modification, the elastic member 54 is in a non-protected state when the inner pot 11 having no or almost no cooked rice is disposed in the inner pot accommodating portion 16 and can cook rice such as 1 cup. When the inner pot 11 containing a minimum amount of cooked rice is disposed in the inner pot accommodating portion 16, a material having an elastic modulus that is in a protected state is used.

  In the state where the rice cooker 10 thus configured opens the lid 25 and the inner pot 11 is not disposed in the inner pot accommodating portion 16, the elastic member 54 has a heat dissipation prevention frame as shown in FIG. It protrudes upward from 47. Moreover, in the state which set predetermined amount rice rice and water to the inner pot 11, and this inner pot 11 has been arrange | positioned in the inner pot accommodating part 16, as shown to FIG. 5 (B), with the weight of the inner pot 11 and rice rice. The elastic member 54 is compressed, the inner pot 11 is moved downward, and the flange portion 13 is in a protected state positioned below the upper end 47 a of the heat dissipation prevention frame 47. This protected state is maintained until the cooked rice in the inner pot 11 disappears regardless of whether the lid 25 is open or closed. Then, when the user opens the lid body 25 and the cooked rice is removed, the cooked rice in the inner pan 11 disappears, as shown in FIG. The inner pot 11 is moved upward, and the flange portion 13 is positioned above the upper end 47a of the heat dissipation prevention frame 47 to be in an unprotected state.

  This rice cooker 10 can obtain the same operation and effect as the above-described embodiment. Moreover, in this modification, when cooked rice is present in the inner pot 11, the protected state is maintained even when the lid 25 is opened. And in this protection state, since the inner peripheral part of the elastic member 54 deformed by the compression is in pressure contact with the outer peripheral wall part 12 of the inner pot 11, the inner pot 11 is inside the inner pot accommodating part 16 when the cooked rice is used. Can be prevented from rotating or moving, and convenience can be improved.

(Second Embodiment)
6 and 7 show the rice cooker 10 of the second embodiment. This second embodiment is greatly different from the first embodiment in that the heat radiation prevention frame 59 can be moved relative to the inner pot 11. In addition, the same structure as 1st Embodiment attaches | subjects the same code | symbol, and abbreviate | omits detailed description.

  First, the shoulder 39 according to the second embodiment is not provided with the annular arrangement portion 53 for arranging the elastic member 54. And the mounting part 57 for mounting the flange part 13 of the inner pot 11 instead of the elastic member 54 is integrally formed so that it may bulge upward. Further, the shoulder 39 is provided with an insertion portion including a hole through which the heat dissipation prevention frame 59 is movably inserted. Further, the shoulder body 39 is provided with a moving mechanism disposing portion 58 for moving the heat radiation preventing frame 59 below the locking receiving portion 48.

  And in 2nd Embodiment, in order to form the heat-radiation prevention frame 59 which consists of a separate annular member, and to move this heat-radiation prevention frame 59 relatively with respect to the inner pot 11, it is in the insertion part of the shoulder body 39. It is arranged so that it can appear and disappear. This heat dissipation prevention frame 59 has an inner diameter larger than the outer diameter of the flange portion 13 of the inner pot 11 as in the first embodiment. Further, as shown in FIGS. 8A and 8B, on the front side of the heat radiation prevention frame 59, a shaft attaching portion 60 for engaging the link member 64 constituting the moving mechanism is provided.

  As a moving mechanism for moving the heat dissipation prevention frame 59 up and down, a passive member 61 that can move between the non-operating position and the operating position by contacting the lid body 25 and the movement of the passive member 61 are interlocked. A link member 64 for moving the heat dissipation prevention frame 59 is provided.

  The passive member 61 is disposed in the locking hole 50 of the shoulder body 39 so as to be able to appear and retract. Specifically, the passive member 61 is supported in the movement mechanism disposition portion 58 of the shoulder body 39 so as to be slidable in the vertical direction. A shaft attachment portion 62 for engaging the link member 64 is provided at the lower end of the passive member 61. The passive member 61 is urged upward by a spring 63 that is an urging member, which is an inoperative position that has advanced into the locking hole 50. Thus, the passive member 61 is moved from the non-operating position to the operating position against the urging force of the spring 63 when the engaging claw portion 35 of the locking member 33 of the lid body 25 enters and contacts the engaging hole 50. When the contact with the locking claw portion 35 is released, the spring 63 moves upward from the operating position toward the non-operating position. The locking claw portion 35 of the lock member 33 is tapered so as to move the passive member 61 downward.

  In the link member 64, the passive member 61 moves from the non-operating position to the operating position, thereby moving the heat dissipation prevention frame 59 upward to be in a protected state, while the passive member 61 moves from the operating position to the non-operating position. Thus, the heat radiation prevention frame 59 is moved downward to bring it into an unprotected state. The link member 64 is supported so as to be rotatable around the rotation shaft 65 in the moving mechanism arrangement portion 58. Engaging grooves 66a and 66b having an oval shape are provided at both ends of the rotating shaft 65 so as to be engaged with the shaft attaching portions 60 and 62.

  In the rice cooker 10 of the second embodiment configured as described above, the passive member 61 is positioned at the non-operating position by the biasing force of the spring 63 as shown in FIG. Thereby, it will be in the non-protection state which the heat-radiation prevention frame 59 moved downward and the flange part 13 of the inner pot 11 was exposed. When the lid 25 is closed, as shown in FIG. 8B, the locking claw 35 of the locking member 33 enters the locking hole 50, so that the passive member 61 is moved from the non-operating position to the operating position. Move downwards. As a result, the link member 64 rotates about the rotation shaft 65 and moves the heat dissipation prevention frame 59 upward, thereby providing a protection state in which the outer periphery of the flange portion 13 of the inner pan 11 is surrounded by the heat dissipation prevention frame 59. . On the other hand, when the lid 25 is opened by the operation of the operation member 30, the locking claw 35 is separated from the locking hole 50 by the rotation of the lock member 33. As a result, the passive member 61 moves upward from the operating position to the non-operating position by the biasing force of the spring 63. As a result, the link member 64 rotates about the rotation shaft 65 and moves the heat dissipation prevention frame 59 downward, whereby the flange portion 13 of the inner pot 11 is exposed.

  Thus, the rice cooker 10 of 2nd Embodiment sets it as the protection state which covered the flange part 13 of the inner pot 11 with the heat-radiation prevention frame 59 by obstruction | occlusion of the cover body 25 similarly to 1st Embodiment, and the cover body 25 Since the flange portion 13 of the inner lid 26 is exposed to the upper side from the heat radiation prevention frame 59 by opening, the heat radiation from the flange portion 13 is reliably prevented without impairing the workability of taking out the inner pot 11. it can. Therefore, the same operations and effects as those of the first embodiment can be obtained.

  In addition, the cooking-by-heating machine of this invention is not limited to the structure of the said embodiment, A various change is possible.

  For example, in the second embodiment, the passive member 61 is configured to move from the non-operating position to the operating position by contact with the locking claw portion 35 of the locking member 33 of the lid 25. However, the lid 25 itself You may comprise so that it can move by contacting. Moreover, even if it comprises so that it may become a protection state by arrangement | positioning of the inner pot 11 by arrange | positioning the passive member 61 so that it can protrude and retract in the inner pot accommodating part 16, and it will become a non-protection state by taking out the inner pot 11. Good. In this case, the passive member 61 is disposed on the bottom of the inner pot accommodating portion 16, and the urging force of the spring 63 is adjusted so that when the inner pot 11 has cooked rice, it is in a protected state. It is also possible to enter a non-protected state when there is no more. In the second embodiment, the link member 64 is used to move the heat dissipation prevention frame 59 in conjunction with the movement of the passive member 61. However, the mechanism to be interlocked can be variously changed as desired.

  In the first embodiment, the inner pan 11 can be moved relative to the heat dissipation prevention frame 47, and in the second embodiment, the heat dissipation prevention frame 59 can be moved relative to the inner pot 11. However, the configurations of the first and second embodiments may be combined, and both the inner pot 11 and the heat dissipation prevention frame 59 may be configured to be relatively movable. Furthermore, in the said embodiment, although comprised so that the upper end of the heat-radiation prevention frame 59 may be located above the flange part 13 of the inner pot 11 in the protection state, the upper end of the heat-radiation prevention frame 59 is on the same plane of the flange part 13. You may comprise so that it may be located.

  And in the said embodiment, although the rice cooker 10 was mentioned as an example and demonstrated as a cooking rice cooker of this invention, if it is heating cookers, such as an electromagnetic cooker, a mochi machine, and a bread maker, any is applicable. Thus, similar actions and effects can be obtained.

10 ... Rice cooker (heating cooker)
11 ... Inner pot (inner container)
DESCRIPTION OF SYMBOLS 12 ... Outer peripheral wall part 13 ... Flange part 14 ... Rice cooker main body 16 ... Inner pan accommodating part (inner container accommodating part)
18 ... induction heating coil (heating means)
DESCRIPTION OF SYMBOLS 25 ... Lid 30 ... Operation member 33 ... Lock member 35 ... Locking claw part 41 ... Opening part 44 ... Inner trunk 45 ... Protection frame 47 ... Radiation prevention frame 47a ... Upper end 50 ... Locking hole 54 ... Elastic member (movement mechanism )
56 ... Space for grip 59 ... Heat radiation prevention frame 61 ... Passive member (movement mechanism)
64 ... Link member (movement mechanism)

Claims (5)

An inner container having a flange portion projecting outward at the upper end opening;
A cooker main body having a heating container for heating the inner container disposed in the inner container housing part, and having an inner container housing part with an upper end opening for detachably housing the inner container;
A lid that is arranged to be openable and closable in the cooker body, and seals the opening of the inner container;
In a heating cooker equipped with
In the outer periphery of the opening of the inner container housing portion of the cooker body, provided with a heat dissipation prevention frame having a circular shape in plan view located on the outer periphery of the flange portion of the inner container,
When the lid is closed or the inner container containing the food is in a protected state accommodated in the inner container accommodating portion, the upper end of the heat dissipation prevention frame is located above or on the same plane as the flange portion of the inner container. When the cover is opened or the inner container that does not contain the food is in an unprotected state accommodated in the inner container accommodating part, the heat dissipation prevention frame is disposed below the flange part of the inner container. A cooking device, wherein a moving mechanism is provided for moving at least one of the inner container and the heat dissipation prevention frame relative to the other so that the upper end is positioned.   In order to move the inner container relative to the heat dissipation prevention frame, the flange portion of the inner container is placed on the upper side as the moving mechanism, and the inner container is elastically compressed in the protected state. The cooking device according to claim 1, further comprising an elastic member that moves the inner container downward and moves the inner container upward by elastic restoration in the unprotected state.   3. The cooking device according to claim 2, wherein in the protected state in which the elastic member is compressed, an inner peripheral portion thereof is pressed against an outer peripheral wall portion on a lower side of the flange portion of the inner container. .   In order to move the heat dissipation prevention frame relative to the inner container, the heat dissipation prevention frame is disposed in the cooker body so as to be able to protrude and retract, and the moving mechanism is applied to the lid or the inner container. It is arranged so that it can contact, and in the protected state, it moves from the non-operating position to the operating position by contact and moves the heat dissipation frame upward, and in the non-protected state, it moves from the operating position to the non-operating position by non-contact. The heating cooker according to any one of claims 1 to 3, further comprising a passive member that moves the heat dissipation prevention frame downward.   The heating cooker according to any one of claims 1 to 4, wherein a gripping space portion is provided below the outer peripheral edge of the flange portion of the inner container in the unprotected state. .

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