JP2015070979A - Cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cooker in which an inner lid is safely attached to, detached from and fixed to an outer lid by simple operation.SOLUTION: A cooker 100 includes a lower housing 11 with an opening formed in the top face, a pot-shaped container 50 housed in the opening of the lower housing 11 freely attachably/detachably, a heating coil 22 provided in the lower housing 11 and heating the pot-shaped container 50, an outer lid 12 that is attached to the lower housing 11 and covers the opening of the lower housing 11 so as to open/close it freely, an inner lid 40 that is mounted on the outer lid 12 and seals the pot-shaped container 50, and an inner lid fixing part 60 one end of which is attached to the lower surface side of the outer lid 12, an intermediate part of which penetrates the inner lid 40, and the other end of which abuts on the lower surface of the inner lid 40 to fix the inner lid 40 to the outer lid 12.

Description

  The present invention relates to a cooking device having a structure in which components can be safely attached / detached and fixed.

  Conventionally, "the outer cover body that opens and closes the open upper body and the inner cover that is attached to and detached from the outer cover body, and the heater cover that heats the inner cover is disposed on the lower surface of the outer cover body. In the rice cooker, one of the outer lid and the inner lid is provided with an attachment shaft that protrudes toward the other side, and the other is provided with an insertion port for the attachment shaft, and the attachment shaft on the inner lid side or the The inner lid can be attached to the outer lid body by pushing the insertion port into the insertion port or the mounting shaft on the outer lid body side and elastically engaging the mounting shaft and the insertion port. In the engaged state, the outer peripheral portion of the inner lid is folded back to the center side so that the outer peripheral portion of the lower surface of the inner lid is in contact with the outer peripheral portion of the heater cover. Projects to the lower surface of the shaft or the insertion slot in a linear arrangement in the axial direction. It provided the knob portion "cooking device is disclosed as (e.g., see Patent Document 1).

Japanese Patent No. 44633782 (6th page, FIG. 4 etc.)

  In the conventional cooking device as described in Patent Document 1, the inner lid is attached by elastically coupling the inner lid to the outer lid body. However, when a member to be elastically coupled is used, there has been a problem that the coupling force is reduced due to deterioration such as scraping or deformation in the coupling portion while repeatedly attaching and detaching. If the binding force is reduced, the inner lid may come off unintentionally, or the inner lid may fall during cooking, and a certain sense of coupling may not be obtained, causing anxiety to the user. There is sex.

  In addition, when the bonding force is reduced, the connection state with the steam port installed in the outer lid deteriorates, or the contact state with the lid heater used for cooking and heat insulation deteriorates, so that cooking and heat retention performance There was also a problem that it would get worse.

  Furthermore, when the inner lid is elastically coupled to the outer lid body, it is difficult to adjust the coupling force, and during the pushing operation, it is difficult to push in if the reaction force is large, and if the reaction force is small, the inner lid is deformed too much. There is a possibility that it will end up.

  On the other hand, during the removal work, it is difficult to understand how the force is applied at the time of pulling, and when it is removed vigorously, a reversal phenomenon (a phenomenon in which the inner lid undulates) may occur. The removal work is inevitably after the end of cooking, and high-temperature dew condensation water may adhere to the inner lid. There was a problem of giving burns and high temperature discomfort to the skin.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a cooking device in which an inner lid can be attached to and detached from and fixed to the outer lid safely and easily by a simple operation. It is said.

  The cooking device according to the present invention is provided in the lower casing having an opening formed on the upper surface, a pan-like container that is detachably accommodated in the opening of the lower casing, and the lower casing, A heating means for heating the pan-like container, an outer lid attached to the lower housing and covering the opening of the lower housing so as to be openable and closable, and attached to the outer lid to seal the pan-like container An inner lid, one end of which is attached to the lower surface side of the outer lid, an intermediate portion penetrates the inner lid, and the other end contacts the lower surface of the inner lid so that the inner lid is fixed to the outer lid. And a lid fixing part.

  According to the cooking device of the present invention, since the inner lid fixing portion is provided, the inner lid can be attached to and detached from and fixed to the outer lid safely by a simple operation.

It is a perspective view which shows roughly an example of a structure of the heating cooker which concerns on Embodiment 1 of this invention. It is principal part sectional drawing which shows the principal part cross section of the heating cooker which concerns on Embodiment 1 of this invention. It is a schematic perspective view which shows the structure of the outer cover of the state which removed the inner cover of the heating cooker which concerns on Embodiment 1 of this invention, and the inner cover. It is explanatory drawing for demonstrating the inner cover fixing | fixed part of the heating cooker which concerns on Embodiment 1 of this invention. It is a schematic perspective view which shows the structure of the outer cover of the state which removed the inner cover of the heating cooker which concerns on Embodiment 2 of this invention, and the inner cover.

  Hereinafter, embodiments of a heating cooker according to the present invention will be described with reference to the drawings. The present invention is not limited to the embodiments described below. Moreover, in the following drawings including FIG. 1, the relationship of the size of each component may be different from the actual one.

Embodiment 1 FIG.
FIG. 1 is a perspective view schematically showing an example of the configuration of a heating cooker 100 according to Embodiment 1 of the present invention. FIG. 2 is a cross-sectional view of a main part showing a cross-section of the main part of the heating cooker 100. Based on FIG.1 and FIG.2, the structure of the heating cooker 100 is demonstrated. The cooking device 100 is configured to insert a pot-like container 50 into which an object to be heated (rice, water, etc.) is inserted, and to perform cooking through the pot-like container 50.

  The heating cooker 100 includes a casing 10 that includes a lower casing 11 and an outer lid 12. A pot-shaped container 50 in which an object to be heated can be put and cooked can be detachably inserted into the housing 10. That is, an opening into which the pan-like container 50 can be inserted is formed on the upper surface of the lower housing 11. And the outer cover 12 covers the opening part of the lower housing | casing 11 so that opening and closing is possible.

  An open / close button 18 is provided on the front surface of the outer lid 12. When the outer lid 12 is closed, the outer lid 12 is hooked by a locking portion provided in the lower housing 11 and closed. When the open / close button 18 is pressed while the outer lid 12 closes the opening of the lower housing 11, the locking portion is released and the outer lid 12 opens upward with the hinge 14 as a fulcrum. . The outer lid 12 is attached to the lower housing 11 via the hinge 14 so as to be opened by a restoring force of a spring (not shown) provided around the hinge 14.

  A display unit 16 and an operation unit 17 are provided on the upper surface of the outer lid 12. The display unit 16 and the operation unit 17 are used to input settings such as time, temperature, menu, etc. in cooking when the pan-like container 50 is housed in the housing 10 and the outer lid 12 is closed and then heating is performed. Accept and display them. The display unit 16 and the operation unit 17 may be integrated.

  The cooking content set by the operation unit 17 is sent as a signal to the control device 15 a mounted on the control board 15 located on the back surface of the housing 10. The control device 15a to which the signal is input instructs the heating means such as the heating coil 22 to be described later on the heating amount and time, and performs the cooking so as to obtain an appropriate cooking finish. The cooking state, for example, the remaining time for cooking, the setting state, the operation state, and the like are displayed on the display unit 16 configured by liquid crystal or the like.

  The control device 15 a controls the operation of the heating cooker 100 based on instructions from the user input via the operation unit 17 and detection information of various sensors, and is provided on the back surface of the lower housing 11. It is mounted on the control board 15.

  The pot-like container 50 is an open-side container made by pressing a magnetic material such as a stainless steel layer and a clad material made of a layer having excellent heat conduction such as aluminum or copper. The user inserts and installs the pot-shaped container 50 into the coil base 21 inside the lower housing 11 with the object to be heated put in the pot-shaped container 50, and instructs the cooking device 100. It's out. Upon receiving the instruction, the control device 15a performs cooking on the object to be heated put in the pot-like container 50 based on the instructed content. In addition, the straight line illustrated inside the pot-shaped container 50 shown in FIG. 2 has shown the position of the water surface.

  On the outside of the coil base 21, a heating coil 22 composed of a metal strand is installed. By passing a high-frequency current driven by an inverter through the heating coil 22, the pot-like container 50 generates heat by induction heating. In addition, you may make it provide the heating coil 22 not only in the position corresponding to the bottom face of the pan-shaped container 50 but in the part corresponding to the side surface of the pan-shaped container 50.

  The lower housing 11 is provided with a pan temperature sensor 23. As an example, the pan temperature sensor 23 may be a contact type thermistor. And it is good to install the pan temperature sensor 23 urging | biasing with a spring toward the upper part so that the pan temperature sensor 23 may contact the pan-shaped container 50 reliably. The temperature of the pot-like container 50 detected by the pot temperature sensor 23 is used as a judgment material for controlling the amount of current applied to the heating coil 22 and ON / OFF.

  An inner lid 40 is detachably attached to the lower surface side of the outer lid 12. When the inner lid 40 is attached to the outer lid 12, the inner lid 40 is fixed to the outer lid 12 and the upper surface of the pan-like container 50 is closed. The pot-like container 50 is hermetically sealed around the opening by a packing 24 and an inner lid 40 that are sealing materials for preventing escape of steam generated from an object to be heated. Therefore, steam is generated from the object to be heated inside the pan-shaped container 50 that generates heat, but there is no place for the steam to escape, so the internal pressure inside the pot-shaped container 50 is increased by heating the pot-shaped container 50. Will go up.

  Since the boiling temperature of the object to be heated rises as the internal pressure of the pot-like container 50 rises, it can be heated at a high temperature of 100 ° C. or higher without being in a boiling state. It becomes possible to obtain a texture and finish that are not. The pressure inside the pot-like container 50 is adjusted by the pressure adjusting unit 25.

  The outer lid 12 is provided with a steam cartridge 42 for releasing steam generated during rice cooking. A steam port 13 is formed in the steam cartridge 42. A steam port 13 may be formed in the outer lid 12. The outer lid 12 is formed with a pressure adjusting portion hole 63 in which the pressure adjusting portion 25 can be installed. Further, the inner lid 40 can be provided with a pressure regulating unit 25 and is formed with an inner lid opening 43 through which steam flows.

  The pressure adjusting unit 25 includes a pressure adjusting ball 26, a solenoid 27, and a pressure adjusting unit cover 28. The pressure adjusting unit 25 is provided in the inner lid 40 and the outer lid 12, and has an opening 51 (a hole that is opened and closed by the pressure adjusting ball 26. ) And the weight of the pressure adjusting ball 26 are set appropriately, the pressure state inside the pan-like container 50 can be made constant. When the inside of the pan-like container 50 exceeds a certain pressure, the pressure adjusting unit 25 opens the opening 51 so that the pressure is released. For this reason, the pot-like container 50 is held so that the inside thereof does not rise above a certain pressure.

  Specifically, when the inside of the pot-like container 50 exceeds a certain pressure, the surface exceeding the weight of the pressure adjusting ball 26 with respect to the pressure adjusting ball 26 installed on the opening 51 of the pressure adjusting portion 25. Pressure is applied. Then, the pressure adjusting ball 26 comes off the opening 51 and opens the opening 51. By doing so, the pressure can be released, and the pressure inside the pot-like container 50 can be regulated.

  The pressure adjusting ball 26 may be forcibly moved by a solenoid 27 to which a current is applied by a signal from the control device 15a. When a current is applied to the solenoid 27, the tip portion is drawn or extended, and the opening 51 can be opened and closed via the pressure adjusting ball 26 by switching the current ON and OFF. That is, the solenoid 27 opens or closes the path from the pot-shaped container 50 to the steam port 13 via the pressure adjusting ball 26. For example, when the solenoid 27 pushes the pressure adjusting ball 26, the opening 51 is opened. Further, for example, when the solenoid 27 contracts, the pressure adjusting ball 26 returns and the opening 51 is closed.

  The pressure adjusting unit cover 28 prevents food fragments that are heated objects from entering the pressure adjusting unit 25. The pressure adjusting unit cover 28 is installed on the most side of the pressure adjusting unit 25 on the pot-like container 50 side. In other words, the pressure adjusting unit cover 28 prevents the pressure adjusting function from being impaired by clogging the opening 51 of the pressure adjusting unit 25 with food debris that is the object to be heated. For example, the pressure adjusting unit cover 28 may have a filter shape having many fine holes. The material and shape of the pressure adjusting unit cover 28 are not particularly limited.

  When the pressure adjusting unit 25 is opened, the steam inside the pot-like container 50 is ejected into the steam cartridge 42. The steam cartridge 42 has an effect of weakening the momentum of the ejected steam. The steam whose strength is weakened by the steam cartridge 42 is discharged from the steam port 13 to the outside of the housing 10. The vapor cartridge 42 is preferably cleaned regularly because dirt, scales, and the like may be attached due to vapor components in the pan-like container 50.

  A pressure adjusting portion packing 30 is provided between the inner lid 40 and the outer lid 12 and around the pressure adjusting portion 25. The pressure adjusting portion packing 30 is installed to securely close the space between the outer lid 12 and the inner lid 40. In other words, by providing the pressure regulating portion packing 30, the vapor that escapes from the pressure regulating portion 25 is reliably guided to the steam port 13 and is not leaked to the other.

  For some reason, the inner lid 40 is provided with a safety valve 29 in case the pressure adjusting unit 25 is clogged or cannot be opened. As the safety valve 29, for example, an open valve method in which the pressure adjusting unit 25 is opened at a pressure higher than the pressure released by the internal pressure, or when the temperature becomes a temperature that cannot be increased by a normal internal pressure, is dissolved. A melting valve system that can be opened is considered. Here, an example in which the safety valve 29 is configured by an open valve system is illustrated.

  The inner lid 40 is provided with a lid temperature sensor 19. A lid temperature sensor packing 20 that seals the periphery of the lid temperature sensor 19 is provided around the lid temperature sensor 19. A temperature sensor hole 41 is formed around the lid temperature sensor 19 of the inner lid 40. By detecting the temperature inside the pot-like container 50 with the lid temperature sensor 19, it is possible to detect the finish of cooking or adjust the input via the control device 15a. Further, it is also used as means for estimating the internal pressure based on the temperature detected by the lid temperature sensor 19.

  In FIG. 2, the case where the lid temperature sensor 19 is installed so as to directly desire the pan-like container 50 through the temperature sensor hole 41 is illustrated as an example. It is also possible to adopt a configuration in which the temperature inside the pot-like container 50 is indirectly estimated by contacting with.

  An inner lid fixing part 60 is provided on the lower surface side of the outer lid 12 so as to protrude toward the pan-like container 50 side. The inner lid fixing part 60 is for fixing the inner lid 40 to the outer lid 12. The inner lid fixing portion 60 includes a fixed insertion portion 64 installed on the outer lid 12 side, a gripping portion 62 installed on the inner lid 40 side, and an intermediate portion 66 connecting the fixed insertion portion 64 and the gripping portion 62. ,have. The inner lid fixing portion 60 is set such that the intermediate portion 66 penetrates the inner lid 40. A through hole 67 through which the inner lid fixing part 60 passes is formed in the inner lid 40.

  A fixed insertion portion hole 61 into which the fixed insertion portion 64 of the inner lid fixing portion 60 is inserted is formed in the lower surface of the outer lid 12. A lid heater 31 is provided in the space between the outer lid 12 and the inner lid 40. Similarly to the heating coil 22, the lid heater 31 has a function as a heating unit that heats the inner lid 40.

  From here, the configuration of the heating cooker 100 will be described in detail with reference to FIGS. 3 and 4 in addition to FIGS. FIG. 3 is a schematic perspective view showing the configuration of the inner lid 40 of the cooking device 100 and the outer lid 12 with the inner lid 40 removed. FIG. 4 is an explanatory diagram for explaining the inner lid fixing part 60 of the heating cooker 100. 4A is a perspective view showing the movement of the fixed insertion portion 64, FIG. 4B is a top view showing the movement of the fixed insertion portion 64, and FIG. 4C is a movement of the fixed insertion portion 64. Side sectional views are shown respectively.

  The inner lid fixing part 60 will be described in detail. As described above, the inner lid fixing portion 60 is positioned between the fixed insertion portion 64 that is one end located on the outer lid 12 side, the gripping portion 62 that is the other end located on the inner lid 40 side, and the middle thereof. An intermediate portion 66. Further, the inner lid fixing part 60 has a rod shape having a length from the fixed insertion part 64 to the gripping part 62. The inner lid fixing part 60 is rotatable about a rod-shaped shaft as a rotation center. Note that the rod shape includes a prismatic shape, a columnar shape, a rectangular tube shape, a cylindrical shape, and the like.

  The fixed insertion portion 64 is located on the outer lid 12 side of the inner lid 40 in a state where the inner lid fixing portion 60 is attached to the inner lid 40. The fixed insertion part 64 is connected to the grip part 62 via an intermediate part 66 that penetrates the inner lid 40. Therefore, when the user rotates the grip portion 62, the fixed insertion portion 64 also rotates in conjunction with it. Further, the shape of the fixed insertion portion 64 viewed from above is preferably a rectangular shape as shown in FIG. However, it does not have to be a strict rectangular shape, and the corner portion may be formed of a curved surface. The shape of the fixed insertion portion 64 viewed from above may be an elliptical shape, an oval shape, a rhombus shape, or the like. Note that the rotation of the grip portion 62 means that the grip portion 62 is rotated in parallel with the lower surface of the inner lid 40.

  The grip portion 62 is located on the pan-like container 50 side of the inner lid 40 in a state where the inner lid fixing portion 60 is attached to the inner lid 40. That is, the gripping portion 62 comes into contact with the lower surface of the inner lid 40 when the inner lid fixing portion 60 is attached to the inner lid 40. The grip part 62 receives an operation of a user who handles the inner lid fixing part 60.

  In order to make it easy to pick the grip part 62 with the thumb and index finger of the user's hand, it is preferable that the grip part 62 has a shape that allows the user to easily apply force. For example, the gripping portion 62 may be formed in a nut shape as shown in FIGS. 2 and 3 and a shape in which a part of the central portion in the axial direction is recessed. Further, for example, the axial center of the portion that becomes the gripping portion 62 of the inner lid fixing portion 60 is dented over the entire circumference, or a plurality of outer peripheral portions of the portion that becomes the gripping portion 62 of the inner lid fixing portion 60 are provided. It is preferable to form a shape in which the protrusion is provided or a combination of them so that the user can easily apply force.

  The intermediate portion 66 penetrates the inner lid 40 in a state where the inner lid fixing portion 60 is attached to the inner lid 40. The intermediate portion 66 connects the fixed insertion portion 64 and the grip portion 62. That is, the intermediate portion 66 transmits the user force received by the grip portion 62 to the fixed insertion portion 64. The shape of the intermediate portion 66 is not particularly limited, but may be configured in a rod shape as shown in FIG.

  The fixed insertion portion hole 61 is formed in the lower surface of the outer lid 12. The fixed insertion portion hole 61 serves as an insertion port into which the fixed insertion portion 64 is inserted in order to attach the inner lid 40 to the outer lid 12. Moreover, the hole 61 for fixed insertion parts has the volume which can rotate the hole 61 for fixed insertion parts inserted. The entire circumference of the fixed insertion portion hole 61 is set to be several mm larger than the entire circumference of the fixed insertion portion 64 so that the fixed insertion portion 64 can be smoothly inserted into the fixed insertion portion hole 61. An opening may be formed in the lower surface of the lid 12. The shape of the fixed insertion portion hole 61 may be determined in accordance with the shape of the fixed insertion portion 64.

  The through hole 67 has a diameter that does not allow the fixed insertion portion 64 and the gripping portion 62 of the inner lid fixing portion 60 to pass therethrough and allows the intermediate portion 66 to pass therethrough.

Next, the operation of the inner lid fixing part 60 will be described.
As shown in FIG. 4B, the fixed insertion portion 64 inserted into the fixed insertion portion hole 61 rotates through the gripping portion 62 so that the fixed insertion portion 64 and the fixed insertion portion hole 61 are viewed from above. To cross each other. Therefore, the inner lid fixing portion 60 is locked to the outer lid 12 by inserting the fixed insertion portion 64 into the fixed insertion portion hole 61 and rotating the grip portion 62.

  As shown in FIGS. 4B and 4C, a fastening protrusion 65 is provided in the vicinity (periphery) of the fixed insertion portion hole 61. Specifically, the fastening protrusion 65 is provided inside the outer lid 12 at a position facing the two long sides of the opening shape of the fixed insertion portion hole 61. The fastening protrusion 65 is formed by projecting a member constituting the lower surface of the outer lid 12 from the inner lid 40 side toward the outer lid 12 side. When the inner lid fixing part 60 is attached, the tightening projection 65 is configured such that the tip part comes into contact with the lower surface of the fixed insertion part 64. The projection shape of the tightening projection 65 is not limited to that illustrated.

  FIG. 4C shows a state after the fixed insertion portion 64 is inserted into the fixed insertion portion hole 61 and the fixed insertion portion 64 is rotated. As shown in FIG. 4 (c), after the fixed insertion portion 64 is inserted into the fixed insertion portion hole 61 and the fixed insertion portion 64 is rotated, the fastening protrusion 65 is brought into contact with the lower surface of the fixed insertion portion 64. Thus, when the inner lid 40 is fixed to the outer lid 12, the inner lid 40 can be tightened in the direction of the outer lid 12 (direction in which the gap dimension between the inner lid 40 and the outer lid 12 is reduced). Thereby, it is possible to make it difficult for the inner lid 40 to be detached from the outer lid 12. You may provide the hole which the front-end | tip of the clamp | tightening protrusion 65 fits in the lower surface of the fixed insertion part 64. FIG. If it does in this way, position shift of fixed insertion part 64 can be prevented.

  In addition, the inner lid fixing part 60 is installed in at least two places of the inner lid 40. In this way, each inner lid fixing portion 60 is rotated and fixed to the outer lid 12, so that the inner lid 40 does not wobble even when the outer lid 12 is opened, and is fixed to the outer lid 12. Is maintained. Here, the case where the inner lid fixing part 60 is installed at two locations has been described as an example. However, as the number of locations to be fixed increases, the inner lid 40 is less likely to come off, and the adhesion between the inner lid 40 and the outer lid 12 is increased. Therefore, it is possible to increase the number of places to be fixed. When the inner lid fixing part 60 is installed at two locations, the inner lid fixing part 60 may be installed at the control position.

  Furthermore, since the effect of fixing the inner lid 40 in close contact with the outer lid 12 side is obtained by installing the inner lid fixing portion 60, the adhesion between the inner lid 40 and the lid heater 31 can also be improved. Therefore, since the amount of heat of the lid heater 31 can be efficiently applied to the inner lid 40, the amount of heat from the inner lid 40 can be transmitted to the object to be heated as radiant heat. In addition, since the temperature of the inner lid 40 can be increased by the lid heater 31, dew condensation on the inner lid 40 can be suppressed.

  Similarly, by installing the inner lid fixing part 60, the adhesion between the lid temperature sensor 19 and the inner lid 40 can be improved. Therefore, since the lid temperature sensor 19 is in close contact with the temperature sensor hole 41, it is possible to prevent the inflow of steam at the upper portion of the inner lid 40. In addition, since the lid temperature sensor packing 20 is in close contact between the outer lid 12 and the inner lid 40, for example, it is possible to suppress the inflow of steam from the pressure adjusting unit 25.

  Similarly, by installing the inner lid fixing portion 60, the pressure regulating portion packing 30 around the pressure regulating portion 25 is brought into close contact between the outer lid 12 and the inner lid 40. Therefore, the steam discharged from the pressure adjusting unit 25 and the safety valve 29 is guided to the steam port 13 inside the steam cartridge 42 without flowing to other parts. The steam cartridge 42 has an action of receiving the primary discharged steam and weakening the momentum. However, the steam cartridge 42 condenses a part of the steam and is heated through a condensate valve (not shown) provided in the inner lid 40. It is also possible to adopt a configuration for returning to an object.

  As described above, according to the heating cooker 100, the inner lid 40 can be attached to and detached from the outer lid 12 in an extremely simple and safe manner by providing the inner lid fixing portion 60. Therefore, it is possible to greatly improve the convenience for the user. Further, according to the heating cooker 100, the inner lid fixing part 60 can improve the adhesion between the inner lid 40 and the outer lid 12, which contributes to the improvement of cooking performance and heat retention performance. .

  A bayonet structure for rotating the lid as used in a pressure vessel or a clamping structure for screwing several places around the lid may require a complicated lid fixing structure around the pan-like container. However, according to the heating cooker 100, by providing the inner lid fixing portion 60 on the inner peripheral portion of the outer lid 12, the inner structure is not interfered with the fixing structure or the opening / closing portion installed on the outer peripheral portion of the outer lid 12. Since the lid 40 can be attached and detached, both safety and ease of attachment and detachment are possible.

Embodiment 2. FIG.
FIG. 5 is a schematic perspective view showing the configuration of the inner lid 40 of the heating cooker 200 according to the second embodiment of the present invention and the outer lid 12 with the inner lid 40 removed. Based on FIG. 5, the structure of the heating cooker 200 is demonstrated. As with the cooking device 100 according to the first embodiment, the cooking device 200 is inserted with a pan-like container 50 containing an object to be heated (rice, water, etc.), and cooked via the pan-like container 50. Is to implement. In the second embodiment, the difference from the first embodiment will be mainly described, and the description of the same parts as those in the first embodiment will be omitted.

  In the second embodiment, the shape of the through hole 67 formed in the inner lid 40 and the configuration of the inner lid fixing portion 60 are different from those in the first embodiment.

The inner lid fixing part 60 is attached to the lower surface side of the outer lid 12 so as to be rotatable about an axis. In other words, the fixed insertion portion 64 is rotatably inserted into the fixed insertion portion hole 61 formed in the outer lid 12 in advance. Therefore, in FIG. 5, the fixed insertion part 64 is hidden.
In addition, the gripping part 62 has a smaller shape than the gripping part 62 described in the first embodiment.
The shape of the through hole 67 corresponds to the grip portion 62.

  After inserting the gripping part 62 of the inner lid fixing part 60 attached to the outer lid 12 into the through hole 67 of the inner lid 40, the user holds the gripping part 62 and rotates the inner lid fixing part 60. The grip portion 62 comes into contact with the lower surface of the inner lid 40, and the inner lid 40 can be fixed to the outer lid 12.

  In the heating cooker 200, since there is no large movable part on the inner lid 40 side, problems such as food clogging can be made difficult to occur. The tightening protrusion 65 may be formed on the outer lid 12 in the same manner as in the first embodiment, but it is the lower surface of the inner lid 40 and around the through hole 67 from the outer lid 12 side to the inner lid 40 side. It may be formed by projecting toward. In this case, the tightening protrusion 65 comes into contact with the upper surface of the grip portion 62. In this case, in order to prevent displacement of the grip portion 62, it is preferable to form a hole portion on the upper surface of the grip portion 62 so that the tip of the fastening protrusion 65 fits.

  In addition, about another structure, it is the same as or equivalent to the heating cooker 100 which concerns on Embodiment 1, and there exists the effect which the heating cooker 100 which concerns on Embodiment 1 show | plays similarly.

  As an application example of the present invention, it can be applied to improve the safety of a cooking device for business use and home use, particularly a cooking device used by increasing the internal pressure of a pan.

  DESCRIPTION OF SYMBOLS 10 Housing | casing, 11 Lower housing | casing, 12 Outer lid, 13 Steam port, 14 Hinge, 15 Control board, 15a Control apparatus, 16 Display part, 17 Operation part, 18 Open / close button, 19 Lid temperature sensor, 20 Lid temperature sensor Packing, 21 Coil base, 22 Heating coil, 23 Pan temperature sensor, 24 Packing, 25 Pressure adjusting part, 26 Pressure adjusting ball, 27 Solenoid, 28 Pressure adjusting part cover, 29 Safety valve, 30 Pressure adjusting part packing, 31 Cover heater , 40 Inner lid, 41 Temperature sensor hole, 42 Steam cartridge, 43 Inner lid opening, 50 Pot-like container, 51 Opening, 60 Inner lid fixing part, 61 Fixed insertion part hole, 62 Gripping part, 63 Pressure regulation Hole for part, 64 fixed insertion part, 65 clamping protrusion, 66 intermediate part, 67 through-hole, 100 heating cooker, 200 heating cooker.

Claims (11)

A lower housing having an opening on the upper surface;
A pan-like container removably accommodated in the opening of the lower housing;
A heating means provided in the lower casing and for heating the pan-like container;
An outer lid attached to the lower housing and covering the opening of the lower housing so as to be freely opened and closed;
An inner lid attached to the outer lid and sealing the pan-like container;
One end is attached to the lower surface side of the outer lid, an intermediate portion penetrates the inner lid, and the other end contacts the lower surface of the inner lid, thereby fixing the inner lid to the outer lid; The cooking device characterized by having. The inner lid fixing part is
The cooking device according to claim 1, wherein the cooking device is configured in a rod shape and is rotatable about the rod-shaped axis. The inner lid fixing part is
A fixed insertion portion that is inserted into a hole for a fixed insertion portion formed on the lower surface of the outer lid and is detachably attached to the outer lid by rotating;
A gripping part that contacts the lower surface of the inner lid and receives an operation from a user;
The cooking device according to claim 1, further comprising: the intermediate portion that transmits the operation of the grip portion to the fixed insertion portion. The inner lid fixing part is
A fixed insertion portion attached in advance to the lower surface side of the outer lid;
A gripping part that is inserted into a through-hole formed in the lower surface of the inner lid and rotates to contact the lower surface of the inner lid and receive an operation from a user;
The cooking device according to claim 1, further comprising: the intermediate portion that transmits the operation of the grip portion to the fixed insertion portion. The fixed insertion portion hole formed on the lower surface of the outer lid is formed according to the shape of the fixed insertion portion,
Provided inside the outer lid and around the hole for the fixed insertion portion, and provided with a tightening projection that protrudes from the inner lid side toward the outer lid side,
The tightening protrusion is
5. The cooking device according to claim 3, wherein a clearance dimension between the inner lid and the outer lid is reduced by contacting a lower surface of the fixed insertion portion attached to the outer lid. The through hole formed in the lower surface of the inner lid is formed according to the shape of the gripping part,
A lower surface of the inner lid, provided around the through hole, and provided with a tightening protrusion that protrudes from the outer lid side toward the inner lid side,
The tightening protrusion is
The cooking device according to claim 4, wherein the gap between the inner lid and the outer lid is reduced by contacting the upper surface of the grip portion. A lid heater is provided between the outer lid and the inner lid,
The inner lid and the lid heater are in close contact with each other in a state where the inner lid is fixed to the outer lid by the inner lid fixing portion. Cooking cooker. The inner lid is provided with a lid temperature sensor,
The inner lid and the lid temperature sensor are in close contact with each other in a state where the inner lid is fixed to the outer lid by the inner lid fixing portion. Cooking device. A pressure adjusting unit that is provided on the inner lid and the outer lid and adjusts the pressure in the pan-like container;
A pressure regulating portion packing provided around the pressure regulating portion,
9. The inner lid and the pressure-regulating portion packing are in close contact with each other in a state where the inner lid is fixed to the outer lid by the inner lid fixing portion. The heating cooker described in 1. The gripping part is
It is configured to have a shape with a part of the central part in the axial direction, a shape with the whole periphery in the center in the axial direction, a form with multiple protrusions on the outer periphery, or a combination of them. The heating cooker according to any one of claims 5 and 7 to 9 dependent on claim 3 and claim 3. The cooking device according to any one of claims 3 to 10, wherein the fixed insertion portions are installed at two or more locations.

Images