JP2005211358A - Inner pot for rice cooker, and rice cooker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inner pot for a rice cooker and the rice cooker not to be easily scratched or chipped by external force by a cooking instrument such as a rice scoop while keeping the effect of preventing boiled rice from sticking or the like by forming a fluororesin on the inner surface of the inner pot. <P>SOLUTION: The inner pot 3 for the rice cooker relating to this invention is composed of a pot part 26a in a bottomed cylindrical shape, a flange part 26b provided so as to be extended outwards and a connection part 26c connecting the flange part 26b and the pot part 26a. On the inner surface of the pot part 26a, at least the resin coating layers of a primer layer 27 and a top layer 28 are formed. On the inner surface of the connection part 26c, at least the resin coating layer of the primer layer 27 is formed and the top layer 28 is not provided. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an inner pot for a rice cooker and a rice cooker, and particularly to an inner surface resin coating layer of an inner pot for a rice cooker.

  In the conventional inner pot for rice cookers, a fluororesin layer was formed as an inner surface resin coating layer in order to prevent rice from sticking to the inner pot inner surface. FIG. 9 is a cross-sectional view of a conventional inner pot for a rice cooker. As shown in FIG. 9, the inner pot 101 includes a pot portion 102a, a flange portion 102b, a metal container 102 including a connecting portion 102c that is an R portion connecting the pot portion 102a and the flange portion 102b, a pot portion 102a, and a connecting portion. It comprises a primer layer 103 formed on the inner surface of 102c and the upper surface of the flange portion 102b, and a top layer 104 as a fluororesin layer formed on the surface of the primer layer. Thus, the fluororesin layer 104 on the inner surface of the inner pot 101 was coated on the entire inner surface including the bottom surface of the pot portion 102a from the end surface of the flange portion 102b on the inner surface of the inner pot. (For example, refer patent document 1) Moreover, there exists a technique like patent document 2 as a technique which improves durability, such as hot water resistance, steam resistance, and corrosion resistance, of such a resin coating layer.

JP 2000-271002 A JP 2003-199675 A

  However, the transparent fluororesin coating layer constituting the fluororesin layer as described above is generally low in hardness, for example, polishing a rice with a colander on the inner pot, or after sharpening the rice with a colander, When transferring the rice to the inner pot, when the rice remaining on the colander is wiped off, the colander is used to strike the flange 102b, or the rice stuck to the rice scoop is dropped, the rice paddle is struck or rubbed against the flange 102b, etc. There is a problem that the fluororesin layer is likely to be scratched or peeled off due to the external force in actual use. When such scratches and peeling occur at one place, there is a problem that the scratches and peeling gradually spread over the entire inner surface.

  The present invention has been made in view of the above-mentioned problems, while forming an fluororesin on the inner surface of the inner pot and maintaining the effect of preventing sticking of rice, etc., against external force caused by cooking utensils such as rice scoop An object is to provide an inner pot for a rice cooker and a rice cooker which are hard to be damaged and peeled off.

  In order to achieve the above object, an inner pot for a rice cooker according to the present invention comprises a bottomed cylindrical pot part, a flange part provided to extend outward, and a connection connecting the flange part and the pot part. At least a primer layer and a top resin coating layer are formed on the inner surface of the pan portion, and at least a primer resin coating layer is formed on the inner surface of the connection portion, It is characterized by not having.

  Moreover, the rice cooker concerning this invention is equipped with the main body, the inner pot accommodated in the said main body, the cover body attached to the said main body, and the heating means which heats the said inner pot, A bottomed cylindrical pan portion and a flange portion provided so as to extend outward, and a connecting portion connecting the flange portion and the pan portion, and on the inner surface of the pan portion, at least a primer layer, A resin coating layer as a top layer is formed, and at least a resin coating layer as a primer layer is formed on the inner surface of the connecting portion, and there is no top layer.

  ADVANTAGE OF THE INVENTION According to this invention, the inner pot for rice cookers and a rice cooker which have a resin coating layer which is hard to be damaged and cannot be easily peeled off against rubbing and knocking such as a monkey and rice scoop can be obtained.

Embodiment 1 FIG.
Hereinafter, the present invention will be described in more detail using an embodiment. FIG. 1 shows a cross-sectional view of a rice cooker according to an embodiment of the present invention. A rice cooker 1 shown in the figure includes a rice cooker body 2 having an opening on the upper surface, an inner pot 3 accommodated in a recess inside the body from the upper surface opening of the body 2, and a hinge comprising a shaft and a spring at the rear of the body 2. 4, a lid 5 is attached to the main body 2 so that the upper surface opening of the main body 2 can be freely opened and closed. A cord reel 6 having a power cord for supplying power for operating the rice cooker 1 from a commercial power source is disposed at the rear of the main body 2. An operation unit 7 provided with a liquid crystal display device that displays an operation state of the rice cooker 1 and an operation button for inputting operation information of the rice cooker 1 on the upper surface of the front part of the main body 2. Is provided. Behind the operation unit 7 is provided a microcomputer 8 as a control means for operating the rice cooker 1 based on input operation information from the operation unit 7 and displaying current setting information and operation status on the display unit. .

  The rice cooker 1 has a temperature measuring section 9 that protrudes freely on the bottom surface of the recess inside the main body 2 and contacts the center of the outer bottom surface of the inner pot 3 when the inner pot 3 is disposed inside the main body 2. The temperature information measured by the temperature measuring unit 9 is sent to the microcomputer 8. Furthermore, the rice cooker 1 is provided with an inner peripheral induction heating coil 10 provided so as to surround the temperature measuring unit 9 at the bottom of the main body 2 and an outer peripheral induction heating coil 11 provided corresponding to the bottom curved surface of the inner pot 3. Yes. Corresponding to the body part of the inner pot 3, a body heater 12 by a heater wire is also provided. Thus, the rice cooker 1 of this embodiment has the inner periphery induction heating coil 10, the outer periphery induction heating coil 11, and the trunk | drum heater 12 as a heating means which heats the inner pot 3. FIG. The operation of these heating means is controlled by a microcomputer 8 which is a control means, and the microcomputer 8 operates the heating means based on temperature information of the temperature measurement unit 9 and input operation information from the operation unit 7. And since the inner pot 3 is heated by the heating means arrange | positioned so that the outer periphery may be enclosed, uniform heating can be implement | achieved and it can cook delicious rice.

  The lid 5 has a protrusion 13 at the front end, and when the lid 5 is closed, the lid 5 is held by a lid opening button 14 attached to the main body 2 and closes the upper surface of the main body. When the lid opening button 14 is pressed when the lid is opened, the holding of the projection 13 is released, and the lid 5 is opened by the spring of the hinge 4. The lid 5 includes an outer lid 15 and an inner lid 16, and a lid heater 17 is provided inside the outer lid 15. The lid heater 17 heats the inner lid 16 to prevent a temperature drop inside the rice cooker body 2 and prevents water droplets or the like adhering to the inner lid surface from being generated by steam. Thereby, while improving the heat retention performance of the rice cooker 1, it can prevent that the water droplet which generate | occur | produced inside the main body adheres to rice, and makes rice cook or it becomes a cause of corruption.

  A vapor cartridge 18 is attached to a recess provided in the center of the lid 5. The steam cartridge 18 has an inlet 19 for introducing a mixture of steam and rice produced during rice cooking into the steam cartridge 18 and an exhaust 20 for discharging steam to the outside of the rice cooker 1. A plurality of ribs 22 are formed from an upper surface and a lower surface of the vapor cartridge 18 in an exhaust path 21 from the introduction port 19 to the exhaust port 20, and an exhaust path 21 in which the mixed gas of steam and rice is formed with the ribs 22. Are separated while passing through the zigzag, and only the vapor is discharged from the exhaust port 20.

  A reservoir 23 is provided in the vicinity of the inlet 19, and the bottom surface of the vapor cartridge 18 is inclined from the exhaust port 20 toward the reservoir 23. For this reason, the rice cake separated from the steam flows through the bottom surface of the vapor cartridge 18 and is stored in the rice pool 23. A pressure valve 24 and a tongue return port 25 are provided on the bottom surface of the pocket 23. When the pressure inside the main body during cooking is high, the return valve 25 is closed if the pressure valve 24 is lifted, and when the internal pressure decreases, the pressure valve 24 is lowered and the return port 25 is opened. The rice balls collected in the water reservoir are returned to the inner pot 3. By providing such a steam cartridge 18, even if heating with high heat is continued during cooking, rice can be cooked without steam blowing from the exhaust port 20 with steam, so cook delicious rice. Is possible.

  FIG. 2 is a cross-sectional view of the inner pot 3 for a rice cooker in one embodiment of the present invention. As shown in the figure, the inner pot 3 in the present embodiment includes a bottomed cylindrical pot portion 26a, a flange portion 26b provided to extend outward from the pot portion 26a, a flange portion 26b, and a pot. A metal container 26 having a connecting portion 26c for connecting the portion 26a is formed as a base. The connection part 26c in this embodiment is comprised by R part which is a curved surface which connects the flange part 26b and the pan part 26a gently. Further, at least the primer layer 27 and the resin coating layer of the top layer 28 are formed on the inner surface of the pot portion 26a of the inner pot 3 in the present embodiment. At least the resin coating layer of the primer layer 27 is formed on the inner surface of the connection portion 26c, and the top layer 28 is not provided. In the present embodiment, the connecting portion 26c refers to the R portion that connects the pan portion 26a and the flange portion 26b, and the 30 portion shown in FIG. 2 is referred to as the connecting portion 26c.

  The inventors collected cases where problems occurred in the resin coating layer at an earlier time than the expected durability period from the start of use of the product, and analyzed the actual usage of the user. To sharpen rice by placing a colander on the inner pot 3 or to sharpen rice in another container such as a colander and then transfer the rice to the inner pot 3, the flange part is used to drop the rice remaining in the colander. It is expected in the normal use state of the inner pot 3 by hitting or rubbing cooking utensils, such as hitting a colander on 26b or dropping rice sticking to a scoop, hitting or rubbing a rice scoop on the flange 26b, etc. In most cases, it was affected by external forces such as a stronger impact force and a greater frictional force. In particular, it was found that the portions affected by such strong external force are concentrated in the vicinity of the connecting portion 26c of the inner pot 3 in the actual usage of the user.

  Further, when the adhesiveness of the coating layers such as the primer layer 27 and the top layer 28 was examined, the adhesiveness between the primer layer 27 and the metal container 26 is that of the top layer 28 and the resin layer such as the primer layer 27 under the top layer 28. It was found to be stronger than That is, when the primer layer 27 is provided on the surface of the metal container 26 and the top layer 28 is further formed on the upper surface thereof, it can be said that the top layer 28 is more easily peeled off than the primer layer 27.

  As a result of such research, the inner pot 3 in the present embodiment is not provided with the top layer 28 having weak adhesion on the connection portion 26c of the inner pot 3 that is affected by strong external force, and only the primer layer 27 that is more difficult to peel off than the top layer 28. So, when the utensils are struck or rubbed, such as colander or rice scoop, the top layer will not be peeled off or scratched, and the peeling will not spread throughout the inner pot 3 An inner pot 3 having a resin coating layer that is difficult to peel off can be obtained. And since the top layer 28 is formed in the inner surface of the pot part 26a of the inner pot 3, it can also prevent well that rice sticks to the inner pot 3.

  The top layer 28 is preferably made of a fluororesin. By comprising a fluororesin, it is possible to further prevent rice sticking and the like. The primer layer 27 is preferably mixed with a fluororesin. By mixing the fluororesin into the primer layer 27, it is possible to give the primer layer 27 the characteristic of preventing sticking of rice and the like, and the connecting portion 26c in which the top layer 28 is not formed, or the flange in the present embodiment. This is because it is possible to prevent sticking of rice and the like on the upper surface of the portion 26b.

  Further, as the fluororesin constituting the top layer 28 and / or the fluororesin mixed in the primer layer 27, at least one of tetrafluoroethylene / perfluorovinyl ether copolymer (PFA) and polytetrafluoroethylene (PTFE) is used. By using it, it becomes possible to improve the durability of the resin coating layer. Further, when a metallic pigment is mixed in the primer layer 27, a non-leafing type aluminum pigment is preferably mixed as a metallic paint pigment. By using such a pigment, the design of the inner pot 3 can be improved, and the non-leafing type aluminum pigment contains pigment particles in the resin layer inner layer and does not float on the resin layer surface. It is possible to prevent the appearance from deteriorating due to melting or alteration, and the adhesion between the top layer 28 and the primer layer 27 and between the primer layer 27 and the metal container 26 can be improved. .

  Then, the manufacturing method of the inner pot 3 in this embodiment is demonstrated. As a first manufacturing method, for example, a metal disc such as aluminum or stainless steel is squeezed into a predetermined shape by press working, and a flange portion 26b is formed on the upper portion to manufacture the metal container 26. After roughening the inner surface by means such as spraying sand on the inner surface of the metal container 26, for example, a primer paint mixed with a fluororesin such as tetrafluoroethylene / perfluorovinyl ether copolymer (PFA) is applied. Then, the primer layer 27 is temporarily formed by drying. By forming the primer layer 27 after roughening the inner surface, the adhesion between the metal container 26 and the primer layer 27 can be increased. Then, a pure fluororesin paint such as tetrafluoroethylene / perfluorovinyl ether copolymer (PFA) is applied and baked on the surface of the primer layer 27 to form the top layer 28.

  FIG. 3 is a sectional view showing a state when the top layer is formed, and FIG. 4 is an enlarged view of a main part thereof. When forming the top layer 28, as shown in FIG. 3, a flange masking jig 29 is provided so that the fluororesin of the top layer 28 is not coated on the portion where the flange portion 26b changes to the body portion 26a, that is, the connecting portion 26c. Set, mask and paint. As shown in FIG. 4, the flange masking jig 29 is formed so as to contact the surface of the primer layer 27 at the flange portion 26b and to have a slight distance from the surface of the primer layer 27 at the connection portion 26c. When setting 29, the primer layer 27 temporarily formed at the end is prevented from being scratched. In the inner pot 3 formed in this way, there is no fluororesin of the top layer 28 from the flange portion 26b to the connecting portion 26c changing from the body portion 26a, and the primer layer 27 is the outermost surface.

  FIG. 5 shows a cross-sectional view of the main part of the inner pot 3 which is a finished product manufactured in this way. Since the top layer 28 formed by such a manufacturing method is baked after the masking coating, the boundary surface by masking becomes a gentle shape because the fluorine melts and burns, and the occurrence of a step or the like is eliminated. For this reason, cooking utensils such as rice paddles are not caught and rice is not stuck to the steps in actual use. Moreover, since there is no step, the cooking utensils are not caught, so that the top layer 28 is hardly damaged or peeled off.

  In the first manufacturing method, an example in which the flange masking jig 29 is used when the top layer 28 is formed has been described. However, the present invention is not limited to this, and other tools and tools such as a seal may be used. Good.

  In addition, as the first manufacturing method, the resin coating layer is formed after the metal container 26 is molded. However, the metal container 26 may be molded after the resin coating layer is formed. In the second production method, for example, after sanding the surface of a metal disk such as aluminum or stainless steel, the inner surface is roughened, and then fluorine such as tetrafluoroethylene / perfluorovinyl ether copolymer (PFA) is used. A primer paint mixed with resin or the like is applied and dried to temporarily form the primer layer 27. Then, the surface of the primer layer 27 is masked with a seal or the like before the molding by press working with a seal or the like, and, for example, a tetrafluoroethylene / perfluorovinyl ether copolymer (PFA) The top layer 28 is formed by applying a pure fluorine resin paint such as the above, removing the masked portion, and baking it. Thereafter, the inner pot 3 is formed by squeezing by pressing to form a predetermined shape, and forming the flange portion 26b on the upper portion.

  In the second manufacturing method, in addition to the effects described in the first manufacturing method, a very large tensile stress acts on the connection portion 26c when the inner pan 3 is formed in the press working. For this reason, the top layer 28 is likely to be peeled off by pressing at the connection portion 26c. However, according to the second manufacturing method, the top layer 28 does not exist at the site of the connection portion 26c having a severe stress environment. It has the effect of preventing scratches and peeling.

  Moreover, after manufacturing the inner pot 3 which formed the primer layer 27 and the top layer 28 in the whole upper surface of the inner surface of the pan part 26a, the connection part 26c, and the flange part 26b as a 3rd manufacturing method, There is also a method in which only the top surface 28 of the flange upper surface 26b and the connecting portion 26c is peeled off or removed. Note that the simple peeling or excision method cannot produce the effect that the end face of the top layer 28 has a gentle shape and the occurrence of a step or the like in the effects of the first and second manufacturing methods described above. If peeling or excision is performed so as not to cause such a step, cooking utensils such as rice paddles are not caught or rice or the like does not stick to the step in actual use. Can be difficult to be damaged or peeled off.

Embodiment 2. FIG.
Another embodiment of the present invention will be described. The inner pot and rice cooker in the present embodiment also have substantially the same configuration as that of the first embodiment. Hereinafter, different parts will be described.

  FIG. 6 is a sectional view of an inner pot 3 for a rice cooker according to another embodiment of the present invention, and FIG. In the figure, the same components as those of the first embodiment are denoted by the same reference numerals and description thereof is omitted. As shown in the figure, the inner pot 3 in the present embodiment also has a bottomed cylindrical pot portion 26a, a flange portion 26b provided so as to extend outward from the pot portion 26a, a flange portion 26b, and a pot. A metal container 26 having a connecting portion 26c for connecting the portion 26a is formed as a base. The connection part 26c in this embodiment is comprised by R part which is a curved surface which connects the flange part 26b and the pan part 26a gently. Further, at least the primer layer 27 and the resin coating layer of the top layer 28 are formed on the inner surface of the pot portion 26a of the inner pot 3 in the present embodiment. At least the resin coating layer of the primer layer 27 is formed on the inner surface of the connection portion 26c, and the top layer 28 is not provided. In the present embodiment, the connecting portion 26c is also called the R portion connecting the pan portion 26a and the flange portion 26b, and the portion 30 shown in FIG. 6 is called the connecting portion 26c.

  In the present embodiment, at least the primer layer 27 and the resin coating layer of the top layer 28 are formed on the upper surface of the flange portion 26b. For this reason, the inner pot 3 and the rice cooker 1 according to the present embodiment have the top layer 28 that has better anti-sticking properties than the primer layer 27, and the case where the rice is dropped on the flange portion 26b, or the rice is flanged. Even if the lid of the rice cooker is closed while remaining in the portion 26b, and the rice is crushed on the flange portion 26b, the rice is prevented from sticking better.

  In addition, as described above, the flange portion 26b is a part that is relatively susceptible to external force, such as a case where the rice is sharpened with a colander on the flange portion 26b when the rice is sharpened with a colander. Even if the top layer 28 on the upper surface of the flange portion 26b is peeled off or scratched by the influence of such an external force, the top layer 28 of the pan portion 26a and the top layer 28 on the upper surface of the flange portion 26b connect the connecting portion 26c. Because it is configured separately, the peeling and scratches on the upper surface of the flange portion 26b do not spread to the pan portion 26a, and it is prevented by peeling or scratching the minimum part that has little influence in actual use. Is possible.

  As a manufacturing method of the inner pot 3 as in the present embodiment, the top layer 28 is coated on the pot portion 26a using the flange masking jig 29 in the first manufacturing method in the first embodiment, and then the connecting portion. 26c and pan portion 26a may be masked to form the top layer 28 on the flange portion 26b, or only the connection portion 26c may be masked using a seal or another jig to mask the flange portion 26b and the pan portion 26a. Alternatively, the top layer 28 may be coated and formed.

  Even in such a manufacturing method, the formed top layer 28 is baked after the masking coating, so that the boundary surface due to masking becomes a gentle shape because the fluorine melts and burns, and the occurrence of steps or the like is eliminated. For this reason, cooking utensils such as rice paddles are not caught and rice is not stuck to the steps in actual use. Moreover, since there is no step, the cooking utensils are not caught, so that the top layer 28 is hardly damaged or peeled off.

  In the second manufacturing method described above, the surface of the temporarily formed primer layer 27 is masked with a seal or the like before forming by press working, and then the top layer 28 is applied. Then, after removing the seal used for masking, it may be formed by baking. Even in such a manufacturing method, in addition to the effects described in the first manufacturing method described above, the top layer 28 is not provided at the site of the severely connected portion 26c in the stress environment, so that it can be satisfactorily prevented from being damaged or peeled off. Has an effect.

  Furthermore, in the third manufacturing method described above, a method may be employed in which only the top layer 28 of the connection portion 26c is peeled or removed. Similar to the third manufacturing method described above, the simple peeling or excision method means that the end face of the top layer 28 has a gentle shape and the occurrence of steps is eliminated in the effects of the first and second manufacturing methods described above. Since the effect cannot be achieved, if peeling or excising so that such a step does not occur, cooking utensils such as rice paddles will not get caught or rice etc. will stick to the step in actual use, so there is no step Since the cooking utensils are not caught, the top layer 28 can be hardly scratched or peeled off.

Embodiment 3 FIG.
Another embodiment of the present invention will be described. The inner pot and rice cooker in the present embodiment also have substantially the same configuration as that of the first embodiment. Hereinafter, different parts will be described.

  In the first and second embodiments described above, the metal container 26 constituting the inner pot 3 is described as being formed by press working. However, the present invention is not limited to the product formed by press working, but is molded with a mold. Even if it is a thing, it is applicable. Even if it is an object formed by such mold molding, if the connecting portion 26c has an R shape formed of a curved surface, the top layer 28 is formed as described in the first embodiment or the second embodiment. By not forming the connection portion 26c, the same effects as those of the above-described embodiments can be obtained.

  In addition, since molding can form the shape of a metal container relatively freely, there is a thing that does not have a curved portion R. These are shown in FIG. FIG. 8 is an enlarged cross-sectional view of a main part of the inner pot 3 formed by casting. In the figure, portions corresponding to the same components as those of the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

  The inner pot 3 shown in FIG. 8A is formed by mold molding, and a connecting portion 26c that connects the pot portion 26a and the flange portion 26b is formed by corners. The metal container 26 having such a shape is preferably configured such that the top layer 28 is not provided at the apex of the corner and in the vicinity thereof. In such a connection part 26c, the influence of external force is the largest at the corner vertex of the connection part 26c. When a cooking tool such as a colander or rice paddle is hit, the influence of external force is relatively large in the vicinity of about 1 cm in the vicinity of the apex of the corner of the connecting portion 26c. For this reason, by not providing the top layer 28 at the apex of the corner of the connecting portion 26c and in the vicinity thereof, it is possible to achieve the same effect as described in the first embodiment.

  Moreover, the inner pot 3 shown in FIG.8 (b) is formed by casting, and the connection part 26c which connects the pot part 26a and the flange part 26b is comprised by the linear part. The metal container 26 having such a shape is preferably configured so that the top layer 28 is not provided at the straight portion and the apex portion of the corner of the flange portion 26b and the pan portion 26a connected to the straight portion and the vicinity thereof. In such a connection part 26c, the influence of external force is the largest at the straight line part and corner apex part which are the connection parts 26c. In addition, when a utensil such as a colander or rice paddle is struck, the influence of external force is relatively large in the vicinity of about 1 cm in the vicinity of the straight portion and corner apex portion of the connecting portion 26c. For this reason, by not providing the top layer 28 at the straight line portion and corner apex portion of the connection portion 26c and in the vicinity thereof, the same effect as described in the first embodiment can be obtained.

  In the present embodiment, the example in which the top layer 28 is not provided on the upper surface of the flange portion 26b has been described. Needless to say, the top layer 28 may be provided on the flange portion 26b. If the top layer 28 is provided in the flange portion 26b as described above, the same effects as described in the second embodiment can be obtained.

It is sectional drawing of the rice cooker concerning one Embodiment of this invention. It is sectional drawing of the inner pot 3 for rice cookers in one Embodiment of this invention. It is sectional drawing which shows a mode at the time of forming the top layer 28 of the inner pot 3 for rice cookers in one Embodiment of this invention. It is a principal part expanded sectional view which shows a mode at the time of forming the top layer 28 of the inner pot 3 for rice cookers in one Embodiment of this invention. It is principal part sectional drawing of the inner pot 3 which is the finished product in one Embodiment of this invention. It is sectional drawing of the inner pot 3 for rice cookers in other embodiment of this invention. It is a principal part expanded sectional view of the inner pot 3 for rice cookers in other embodiment of this invention. It is a principal part expanded sectional view of the inner pot 3 for rice cookers formed by casting in other embodiment of this invention. It is sectional drawing of the conventional inner pot 3 for rice cookers.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Rice cooker, 2 Rice cooker main body, 3 Inner pan, 4 Hinge, 5 Lid body, 6 Code reel, 7 Operation part, 8 Microcomputer (control means), 9 Temperature measurement part, 10 Inner circumference induction heating coil (heating means) , 11 outer periphery induction heating coil (heating means), 12 body heater (heating means), 13 protrusion, 14 lid opening button, 15 outer lid, 16 inner lid, 17 lid heater, 18 steam cartridge, 19 inlet 19, 20 exhaust Mouth, 21 Exhaust path, 22 Rib, 23 Stick pool, 24 Pressure valve, 25 Stick return port, 26 Metal container, 26a Pan, 26b Flange, 26c Connection, 27 Primer layer, 28 Top layer, 29 Flange Masking jig.

Claims (7)

  It consists of a bottomed cylindrical pan portion, a flange portion provided so as to extend outward, and a connecting portion connecting the flange portion and the pan portion, and the inner surface of the pan portion includes at least a primer layer and An inner pot for a rice cooker, wherein a resin coating layer of a top layer is formed, and at least a resin coating layer of a primer layer is formed on the inner surface of the connecting portion and does not have a top layer.   The inner pot for a rice cooker according to claim 1, wherein at least a primer layer and a resin coating layer of a top layer are formed on an upper surface of the flange portion.   The said top layer is comprised with the fluorine resin, The inner pot for rice cookers in any one of Claim 1 or 2 characterized by the above-mentioned.   The inner pot for a rice cooker according to any one of claims 1 to 3, wherein a fluororesin is mixed in the primer layer.   As the fluororesin constituting the top layer and / or the fluororesin mixed in the primer layer, at least one of tetrafluoroethylene / perfluorovinyl ether copolymer (PFA) and polytetrafluoroethylene (PTFE) is used. The inner pot for a rice cooker according to any one of claims 3 to 4, wherein the inner pot is formed.   The inner pan for a rice cooker according to claim 4, wherein a non-leafing type aluminum pigment is mixed in the primer layer as a metallic paint pigment. A main body, an inner pot housed in the main body, a lid attached to the main body, and heating means for heating the inner pot,
The inner pan is composed of a bottomed cylindrical pan portion and a flange portion provided so as to extend outward, and a connecting portion connecting the flange portion and the pan portion, and the inner surface of the pan portion includes at least A rice cooker characterized in that a primer layer and a resin coating layer of a top layer are formed, and at least a resin coating layer of a primer layer is formed on the inner surface of the connecting portion and does not have a top layer.

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