JP2004261248A - Cooker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cooker which is equipped with both of the functions of a rice cooker with warmer and a bread maker, and is compact and can provide a good performance. <P>SOLUTION: This cooker includes a main body case 1, a lid body 6, an internal pot 16 which can be induction-heated, a rotating shaft top 22 which goes through the bottom part of the internal pot 16 and is freely rotatably fitted, a temperature detecting device coming into contact with the bottom part of the internal pot 16, a bottom container 48 which is the lower part of the internal pot 16 and is attached to the outside of the temperature detecting device, and an induction heating coil 47 which is attached to the lower surface part of the bottom container 48 and induction-heats the bottom surface part of the internal pot 16. The cooker also includes a chassis 37 being arranged at a lower side in the main body case 1, a motor 43 being fixed to the chassis 37, a bread case 24 which transmits the power of the motor 43 to the rotating shaft top 22 and is freely detachably and water-tightly mounted on the internal bottom part of the internal pot 16 while coming into contact with an internal lid 10, and a kneading blade 60 which is freely detachably fitted on the rotating shaft top 22. The rotating shaft top 22 goes through the bottom part of the bread case 24 and protrudes in the bread case 24. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a heating cooker having both functions of a jar rice cooker and a bread maker.
[0002]
[Prior art]
As this type of conventional heating cooker, for example, Japanese Patent No. 3119402 is known as a jar rice cooker which is an induction heating cooker. This has a protective frame made of a non-magnetic material for detachably storing the inner pot in the main body, and an induction heating coil in which an electric wire is formed in a coil shape is disposed on the bottom or outer periphery of the protective frame, and an inverter circuit is provided. The device is mounted on the bottom of the main body, and the inner pot containing the food is cooked by an alternating magnetic field generated from the induction heating coil.
[0003]
Further, as a bread maker that can cook rice, for example, Japanese Patent No. 2719802 is known. It has a dough container that can also be used as a bread baking mold in a heating chamber, and has a temperature detection sensor pressed against the kneading vessel and a heater to heat the heating chamber. A rice cooker lid is put on a dual-purpose dough container to make a rice cooker container, and the bread and rice cooker are switched by a switching key for use.
[0004]
Further, as a rice cooker with a bread making function, there is Japanese Patent Application Laid-Open No. 9-164074. This rice cooker is a gas rice cooker, which has an inner pot for cooking rice and a pan kneading function in the inner pot. A pan case that can also be used for bread baking is detachably mounted.The inner pot is heated with a gas burner during cooking and baking, and the inner pot is heated with radiant heat using a seeds heater during warming or fermentation. is there.
[0005]
[Patent Document 1] "Japanese Patent No. 3119402"
[Patent Document 2] "Japanese Patent No. 2719802"
[Patent Literature 3] "Japanese Patent Application Laid-Open No. 9-164074".
[0006]
[Problems to be solved by the invention]
In the conventional example of Japanese Patent No. 3119402, cooking can be performed with high heat by induction heating. However, it is a jar rice cooker, and cooking that cooks uniformly while causing convection in an inner pot, for example, rice cooking or porridge Etc. can be done well. Also, by slightly changing the control method, for example, if kneaded dough is put in and the temperature of the inner pan is raised and baking is performed, the cake that can be baked in a short time without increasing the temperature is about The case could not be cooked well.
[0007]
In Japanese Patent No. 2719802, rice cooking and baking are both possible, but the heating means is a circulation of hot air by a sheath heater and a fan, it takes time to heat, and heating is partial heating, and the entire bread case is heated. In order to uniformly heat the pan, it is necessary to increase the space between the pan case and the heater, and there is a problem that the main body becomes large. In addition, because the bread case is narrow, it is difficult to take out rice when cooking rice, and furthermore, since the rice cooker is placed on the pan case and cooked, the sealing degree is poor, and if you keep it for a long time, it will dry out. was there. In addition, since the bread made by this machine is a chevron, it causes the height of the main body to increase, and it is necessary to provide sufficient clearance with the inner lid to keep the temperature of the head similar to that of the surroundings. Was. Also, when trying to make a Pullman type (square) bread, it was necessary to cover the bread case with a separate lid that resisted the expanding force of the bread.
[0008]
Further, in Japanese Unexamined Patent Application Publication No. 9-164074 described in Patent Document 3, since the rice cooker and the baking are performed by heating the inner pot with a gas burner, it is difficult to control the temperature, and the outer case is harder than the inner case. The escape of heat to the direction was large, and the heat efficiency was poor. Also, between the inner pot and the pan case, the bottom part is in contact and there is no heat insulation between them, so it is called indirect heating, but it is not completely indirect heating, and the bottom part is Since it is in a state of direct heat conduction, the bottom portion is considerably darker than the upper portion, making uniform baking difficult.
[0009]
Further, since the upper part of the bread case is open, the baked bread has a mountain shape. Therefore, it is necessary to take a large space in the upper part, and it cannot be small and compact.
[0010]
Further, at the fitting portion between the inner pot and the pan case, there are provided projections called anti-rotation members and cutouts, etc., which serve to prevent the bread case from rotating in the radial direction when kneading the dough. There is no function to prevent lifting in the direction, so that there is a possibility that the bread case comes off during the kneading process and the kneading becomes impossible.
[0011]
[Means for Solving the Problems]
In order to solve the above problems, the present invention is an induction heating type jar rice cooker, which can cook rice, keep warm, and further has a function of kneading, fermenting and baking, and is a machine for rice cooking and automatic baking. It is.
[0012]
Specifically, the main case, an openable lid that covers the upper opening of the main case, has an inner lid equipped with a lid heater, and a seal packing, and is detachably attached to the opening of the main case. An inner pot capable of induction heating mounted on a rotary shaft penetrating the bottom of the inner pot and rotatably mounted thereon, a temperature detecting device in contact with the bottom of the inner pot, and a lower portion of the inner pot. A bottom container attached to the outside of the temperature detecting device, an induction heating coil attached to the lower surface of the bottom container and induction-heating the bottom of the inner pot; The arrangement of the chassis, the motor attached to and fixed to this chassis, and the structure of transmitting the power of this motor to the rotating shaft by the deceleration means and the joint means, and detachably and water-tightly mounted on the inner bottom of the inner pot Place A pan case in which the upper end opening is in contact with the lower surface side of the inner lid; and a through-hole provided in the bottom of the pan case, the rotary shaft penetrates through the through-hole and projects into the pan case. This is a heating cooker provided with a kneading blade detachably mounted thereon.
[0013]
In addition, a container base made of a heat-resistant non-metallic material is attached to the outside of the bottom of the pan case so that the inner pot and the pan case are not in contact with each other.
[0014]
Furthermore, as the bread baking means, indirect baking is applied to portions other than the upper surface.
[0015]
The present invention adopts such a configuration, so that the inner pot is induction-heated by using the induction heating coil and the lid heater not only during rice cooking and heat retention, but also during baking, so that the inner pot is rapidly heated and surrounded by the inner lid and the inner pot. The inside of the pan becomes a kind of compact oven that is uniformly heated, which uniformly heats the pan case set in the inner pot, and the upper opening of the pan case is in contact with the inner lid. Therefore, a general Pullman-type (square) bread can be used, the height of the main body can be kept low, and a compact and efficient cooking device for both rice cooking and baking can be provided.
[0016]
【Example】
Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS.
[0017]
In the drawing, reference numeral 1 denotes a main body case, and 2 denotes an inner wall formed integrally with or separately from the main body case 1. A body heater 69 is wound around the outside of the inner wall 2. Reference numeral 3 denotes an inner bottom portion of the main body case 1 formed integrally with or separate from the inner wall 2. Reference numeral 4 denotes a lower portion of the inner wall 2, a concave portion formed on the outer peripheral portion of the inner bottom portion 3, which is formed all around or at a plurality of locations.
[0018]
Reference numeral 5 denotes an opening of the main body case 1. The opening 5 is covered by a hinge 6 around a hinge 7 by a hinge spring 8 so as to be freely opened and closed. Reference numeral 9 denotes a locking device for the lid 6 attached to the body case 1 side. Reference numeral 10 denotes an inner lid attached to the lower opening of the lid 6, and a plurality of steam holes 68 are provided in the center. A lid heater 11 is mounted on the upper surface of the inner lid 10. Reference numeral 12 denotes a seal packing mounted on the outer peripheral portion of the inner lid 10, which seals a gap between the inner pot 16 and the flange on the upper surface of the inner pot 16 when the inner pot 16 is placed in the opening 5.
[0019]
Reference numeral 13 denotes a pressure control valve mounted in a steam port lid 14 mounted on the upper opening of the lid 6. Reference numeral 15 denotes a steam port provided on the steam port lid 14. The steam generated in the inner pot 16 enters the steam port lid 14 through the steam hole 68 of the inner lid 10, passes through the pressure control valve 13, and is discharged outward from the steam port 15.
[0020]
Reference numeral 17 denotes a circumferential or a plurality of legs provided on an outer peripheral portion of the lower portion of the inner pot 16, which is inserted into a concave portion 4 provided at a lower portion of the inner wall 2 and mounted on a plurality of ribs 71 provided in the concave portion 4. Is placed. This is to prevent the leg 17 of the inner pot 16 placed on the dust from climbing up and tilting the inner pot 16 even if dust or the like falls into the recess 4. When the legs 17 are positioned in the recesses 4 and when they are taken out of the main body, the projections 18 project downward from the center of the bottom of the inner hook 16 so that the legs 17 serve as a support for preventing falling. It is.
[0021]
Reference numeral 19 denotes a bearing press-fitted and fixed to a lower portion of the projection 18. Reference numeral 20 denotes an oil seal, and a labyrinth 21 having a triangular cross section is formed on the upper surface of the oil seal 20 in a ring shape. Reference numeral 22 denotes a rotating shaft which penetrates the bearing upper portion 19 and the oil seal 20 and protrudes into the inner hook 16, and a coupling upper portion 35 is fixed to a lower end thereof.
[0022]
Reference numeral 23 denotes a plurality of fitting projections formed on the inner surface upper portion of the projection 18. The fitting projection 23 is formed of a heat-resistant non-metallic material on the outside of the projection 26 provided at the bottom center of the pan case 24. The thus configured container base 27 is mounted, and a plurality of fitting protrusions 28 provided on the outer peripheral portion of the container base 27 are fitted and fixed by bayonet-type twisting. At this time, the rotating shaft upper 22 penetrates through the through-hole 62 provided in the projecting portion 26 of the pan case 24 and projects into the pan case 24, and the lower surface of the projecting portion 26 has a labyrinth provided on the oil seal 20. 21 and is fixed in a watertight manner. Furthermore, the upper end opening of the pan case 24 is configured to contact the lower surface side of the inner lid 10. Reference numeral 25 denotes a plurality of ribs provided on the side surface of the pan case 24.
[0023]
Reference numeral 29 denotes a step provided on the outer periphery of the protruding portion 18 of the inner pot 16, and a temperature detecting device 32 containing a temperature detecting sensor 30 in a thermo case 31 formed in a ring shape abuts on the step 29, A plurality of lower claws 34 are inserted into the through holes 70 of the inner bottom 3 to prevent the lower claws 34 from coming off.
[0024]
Reference numeral 36 denotes mounting bosses provided at a plurality of locations below the concave portion 4 provided below the inner wall 2 of the main body case 1. A chassis 37 is attached and fixed below the boss 36. Reference numeral 38 denotes a receiving stand fixed to a chassis 37, the axis of which is aligned with the rotation shaft 22 of the inner shuttle 16. Reference numeral 39 denotes a bearing under a press fit and fixed to the receiving base 38, and a lower rotating shaft 40 is rotatably inserted. Reference numeral 41 denotes a pulley inserted and mounted on the upper part of the lower rotating shaft 40, and a lower coupling 42 is attached and fixed above the pulley 41. Reference numeral 43 denotes a motor attached to and fixed to the chassis 37. The power of the motor 43 is transmitted to the motor pulley 44, the belt 45, and the pulley 41, and is transmitted to the upper rotating shaft 22 via the lower coupling 42 and the upper coupling 35. .
[0025]
Reference numeral 46 denotes a winding frame formed of a material having high heat resistance and insulation properties. The winding frame 46 is provided at the lower portion of the inner pot 16 and winds an induction heating coil 47 together with a bottom container 48 formed of a material having high heat resistance and insulation properties. It is formed as follows. A plurality of ferrites 49 are mounted below the coil, and absorb a downward magnetic field so that the alternating magnetic field generated by the induction heating coil 47 does not adversely affect other portions. Reference numeral 50 denotes a shielding plate made of a nonmagnetic material such as aluminum, which more reliably shields the side and downward magnetic fields so that the alternating magnetic field generated by the induction heating coil 47 does not adversely affect other parts. .
[0026]
A bottom frame 51 covers the bottom opening of the main body case 1. Reference numeral 52 denotes a plurality of feet formed integrally with or separately from the bottom frame 51. Reference numeral 53 denotes a power supply side control device, which constitutes an inverter circuit, and constitutes a control device together with the operation side control device 54. Reference numeral 55 denotes a display unit such as a liquid crystal which constitutes the operation control unit 54. Reference numeral 56 denotes an operation panel of the operation-side control device 54. 57 is a code reel. 58 is a handle for carrying the main body.
[0027]
Reference numeral 59 denotes a heating chamber (space) surrounded by the inner pot 16, the inner lid 10, and the pan case 24. Reference numeral 60 denotes a mixing blade which is inserted into the rotating shaft 22 protruding into the pan case 24 and rotates by rotation of the rotating shaft 22 while maintaining a predetermined gap with the pan case 24. Reference numeral 61 denotes a blade provided on the mixing blade 60.
[0028]
Reference numeral 63 denotes cutouts provided on the left and right of the upper part of the main body case 1. When the inner pot 16 is set in the main body with the inner pots 65 provided on the left and right of the flange 64 on the upper part of the inner pot 16. This is the part where the inner pot totte 65 escapes. Reference numeral 66 denotes a pan case flange provided on the upper end curl portion of the pan case 24 so as to face front and rear or left and right. A pan case totte 67 is inserted into a hole provided in the flange portion 66 and rotatably attached. .
[0029]
Hereinafter, the operation of the present embodiment will be described.
[0030]
First, the case of using as a jar rice cooker will be described. When the lock device 9 is released by pressing the button, the lid 6 rotates about the hinge 7 by the action of the hinge spring 8 and opens. Next, when the pan case 24 set in the inner pot 16 is twisted in a direction in which the pan case 24 is detached, the bayonet mechanism is detached.
[0031]
Next, when the inner hook 16 is pulled up, the portion above the coupling upper portion 35 is cut off from the main body side and comes off. At this time, the protruding portion 18 protrudes below the bottom of the inner hook 16, but there is a ring-shaped or a plurality of legs 17 provided on the outer peripheral portion. On the other hand, a predetermined gap is ensured, and a fall can be prevented.
[0032]
Next, the washed rice and a predetermined amount of water are put into the inner pot 16, the inner pot 16 is set in the opening 5 of the main body case 1, and the lid 6 is covered. Next, when the cord is pulled out from the cord reel 57, the power is connected, and the start key on the operation panel 56 is operated, rice cooking is started according to a sequence programmed in advance. At this time, the initial menu when the power is turned on is always a rice cooking menu.
[0033]
During rice cooking, the control devices 53 and 54 control the induction heating coil 47 and the lid heater 11 based on temperature information from the temperature detection device 32 abutting on the step portion 29 at the bottom of the inner pot 16. Control of the lid heater 11 is also performed so as to prevent spurting of the ash on the way. The pressure in the heating chamber 59 surrounded by the inner lid 10, the seal packing 12, and the inner pot 16 is adjusted to a predetermined pressure by the action of the pressure control valve 13 set on the lid 6, so that the rice can be cooked into delicious rice. increase. When the cooking is detected, the mode is switched to heat retention, the lid heater 11 and the body heater 69 are energized, and the temperature is kept at a predetermined temperature for a predetermined time.
[0034]
Next, the case of using as a bread maker will be described. As in the case of the rice cooker, when the lock device 9 is first released by pressing the button, the lid 6 rotates about the hinge 7 by the action of the hinge spring 8 and opens. Next, if the pan case 24 set in the inner pot 16 is not removed, and the inner pot 16 is pulled upward while being set, the portion above the upper coupling 35 is cut off from the main body side and detached. At this time, as described in the case of the rice cooker, there is a ring-shaped or a plurality of legs 17 provided on the outer peripheral portion, and even at the position of the upper coupling 35 located at the bottom, a predetermined gap is formed with respect to the floor surface. Since it is secured, it is possible to prevent a fall.
[0035]
Next, in a state where the kneading blades 60 are set on the rotating shaft 22 protruding into the pan case 24, bread materials such as water and flour are measured and put into the pan case 24 by predetermined amounts, and the inner pot 16 and the pan case While the kneading blades 60 are still set in the opening 24, they are set in the opening 5 of the main body case 1, and the lid 6 is covered. Next, the cord is pulled out from the cord reel 57, the power is connected, the menu key on the operation panel 56 is operated to set the bread menu, and when the start key is pressed, the bread is started according to a previously programmed sequence.
[0036]
During baking, the control devices 53 and 54 control the motor 43, the induction heating coil 47, and the lid heater 11 with temperature information from the temperature detection device 32 abutting on the step portion 29 at the bottom of the inner pot 16. Then, it is operated at a predetermined temperature and time, and is baked into bread through a series of processes such as kneading, aging, primary fermentation, degassing, secondary fermentation, and baking.
[0037]
Also, at this time, as seen in, for example, Japanese Patent No. 2719802, in a general bread maker, the upper part of the bread case is in an open state, so that the bread becomes unlimitedly bulged and has a coarse mountain-shaped bread. However, in the case of the present invention, since the opening on the upper surface of the pan case 24 is in a positional relationship in contact with the inner lid 10, it is sandwiched between the inner lid 10 and the pan case 24, kneaded in a sealed state, and fermented. Since the dough swells, the dough does not dry and becomes a sufficiently moist and soft dough.
[0038]
In addition, the bread dough swelled sufficiently by the secondary fermentation after degassing has a head that hits the inner lid 10 and does not extend upward any more. Therefore, in the baking mold composed of the inner lid 10 and the pan case 24, Since it expands, it expands so as to fill gaps in the cloth, and the grain becomes very fine.
[0039]
In the baking process, the induction heating coil 47 and the lid heater 11 are energized. In the case of the induction heating coil 47, the bottom of the inner pot 16 is heated by the generated alternating magnetic field. Since the inner pot 16 is formed to be thick, it has very good heat conduction, and reaches a desired baking temperature in a short time and is maintained. On the other hand, in the case of the lid heater 11, when a current is supplied similarly, the temperature reaches a desired temperature and is maintained.
[0040]
Therefore, the bread dough in the bread case 24 is indirectly heated at a high temperature as if it is put into a high-temperature oven, and is baked into bread in a short time, so that the bread skin is thin and the grain is fine, It is baked into soft and delicious bread. Thus, the baked bread is not a chevron-shaped bread, but rather a pullman-type (square) bread with its head held down, which is generally the most preferred. When it is baked, it is informed by a notification means such as a melody, and the lid heater 11 and the body heater 69 are energized to keep the temperature at a predetermined temperature for a predetermined time.
[0041]
When taking out the baked bread, the power is turned off, the button is pressed and the lock device 9 is released, and the lid 6 is rotated about the hinge 7 by the action of the hinge spring 8 to open. At this time, since the upper surface of the bread is baked in a beautiful golden color, it does not stick to the inner lid 10.
[0042]
Next, with the inner pot 16 still inserted in the main body, the pan case 24 is twisted in the release direction using mittens or the like, the bayonet mechanism is removed, and the pan case totte 67 is lifted. It is taken out while buried in. Next, when the bread case 24 is inverted and shaken, the bread is taken out with the dough blades 60 buried in the bottom of the bread. The dough 60 is removed from the bottom of the bread.
[0043]
As described above, since the bread according to the present embodiment is not a Yamagata bread generally made by a bread maker, but a generally sold Pullman type (square) bread, the height of the bread case 24 and the heating chamber 59 is set. Can be kept low, so that the height of the main body can be kept low, miniaturization and compactness can be realized, and the skin can be made thin, fine-grained, soft and delicious bread.
[0044]
As described above, the present cooking device is convenient and has good performance, and can be provided as a small and compact rice cooker / breadmaker.
[0045]
【The invention's effect】
As described above, according to the present invention having such a configuration, the height of the pan case and the heating chamber can be kept low, and therefore, the height of the main body can be kept low. In addition, since the rice cooker and the bread maker are also used as a single unit, it can be placed in a small kitchen, rice and bread can be used properly according to preference, and an extremely convenient cooking device can be provided. It is.
[0046]
In addition, the induction heating method allows for quick heating and efficient heating, resulting in a high-performance cooking device. It can be used not only for cooking rice but also for making bread with thin skin, fine grain, soft and delicious bread. It can be finished.
[Brief description of the drawings]
FIG. 1 is a sectional view of a cooking device showing one embodiment of the present invention.
FIG. 2 is a sectional view showing a state where an inner pot and the like are removed.
FIG. 3 is an exploded perspective view of the same.
FIG. 4 is a perspective view of the same, with the inner hook inserted.
FIG. 5 is a perspective view showing a state in which an inner pot and a pan case are inserted.
FIG. 6 is an enlarged sectional view of a main part of the same.
FIG. 7 is a sectional view of the same, showing a cooked rice state.
FIG. 8 is a sectional view of the same, showing a bread-baked state.
[Explanation of symbols]
1: Body case, 6: Lid, 10: Inner lid, 11: Lid heater, 12: Seal packing, 16: Inner pot, 18: Projection, 20: Oil seal, 21: Labyrinth, 22: On rotating shaft, 24: Pan case, 32: Temperature detector, 35: Coupling, 37: Chassis, 42: Coupling, 43: Motor, 47: Induction heating coil, 48: Bottom container, 53: Power supply side controller, 54 : Operation side control device, 60: mixing blade, 62: through hole.

Claims (3)

An openable and closable lid comprising a main body case (1), an inner lid (10) covering an upper opening (5) of the main body case (1), and having a lid heater (11) mounted thereon, and a seal packing (12). A body (6), an inner pot (16) which is detachably mounted on an opening (5) of the main body case (1) and which can be induction-heated, and is rotatably mounted through the bottom of the inner pot (16). The temperature detector (32) abutting on the rotating shaft (22), the bottom of the inner pot (16), and the lower part of the inner pot (16) and attached to the outside of the temperature detector (32). A bottom container (48), an induction heating coil (47) attached to the lower surface of the bottom container (48) for induction heating the bottom of the inner pot (16), and a lower portion of the induction heating coil (47). A chassis (37) disposed below the main body case (1), and the chassis (37) A motor (43) attached and fixed, and a structure for transmitting the power of the motor (43) to the rotating shaft (22) by a deceleration means and a joint means, and is detachably attached to the inner bottom portion of the inner hook (16). A pan case (24), which is placed in a water-tight manner and has an upper end opening abutting on the lower surface side of the inner lid 10, and a through hole (62) formed in the bottom of the pan case (24) is mounted on a rotating shaft. (22) A heating cooker characterized by comprising a kneading blade (60) which penetrates and protrudes into a pan case (24) and is detachably mounted on the rotating shaft (22). The container case (27) formed of a heat-resistant nonmetallic material is attached to the outside of the bottom of the pan case (24), and the inner pot (16) and the pan case (24) are not in contact with each other. The heating cooker as described. 3. The cooking device according to claim 1, wherein the baking means is indirectly baked except for the upper surface.

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