WO2012081598A1

WO2012081598A1 - Cooking device and rice cooker

Info

Publication number: WO2012081598A1
Application number: PCT/JP2011/078864
Authority: WO
Inventors: 高木　真也; 務大山
Original assignee: シャープ株式会社
Priority date: 2010-12-14
Filing date: 2011-12-14
Publication date: 2012-06-21
Also published as: CN103260479B; JPWO2012081598A1; JP5796018B2; CN103260479A

Abstract

A rice cooker is provided with: an inner pot (2) for containing, for example, rice and water; a rice cooker body (1) in which the inner pot (2) is received; an induction coil (4) disposed within the rice cooker body (1) and heating the inner pot (2); a lid body (3) mounted to the upper part of the rice cooker body (1) so that the lid body (3) can be opened and closed and capable of being closed so as to cover the inner pot (2); and a rotating body (9) rotatably mounted to the side of the lid body (3) which faces the inner pot (2). A control unit (22) controls a motor (11), a small pulley (12), a belt (13), a large pulley (14), a drive-side coupling (15), first and second transmission shafts (18, 19), a driven-side coupling (23), first to fourth miter gears, and a pivoting shaft (28) so that the rotating body (9) rotates while bubbles are generated from the water within the inner pot (2).

Description

Heating cooker and rice cooker

The present invention relates to a heating cooker and a rice cooker for home use and business use, for example.

Conventionally, as a rice cooker, as described in JP-A-9-000433 (Patent Document 1), an inner pot for storing rice, a rice cooker main body for storing the inner pot, and this rice cooker Some have an operation panel connected to the upper surface of the main body.

The operation panel is inclined so that the side opposite to the main body side is located below the main body side. That is, the operation panel is provided so as to face obliquely upward. Further, a transparent resin cover is rotatably attached to the operation panel, and the cover can cover the surface of the operation panel.

According to the rice cooker having the above configuration, by covering the surface of the operation panel with a cover, even if the stickiness of the inner pot spills out during cooking, it prevents entry of stickiness into the operation panel. Can do.

As described above, in the conventional rice cooker, measures against the sticky spilled from the inner pot to the outside of the inner pot are set, but no measures are taken to prevent the sticky from spilling out. Absent. Since this mucilage contains a umami component that is extracted from rice by heating, the spilling of the mucilage discards the umami component of rice.

That is, the above-mentioned conventional rice cooker has a problem that the taste of rice is lowered due to the spilling of gummy.

In recent years, there has been a growing need to cook things other than rice with a rice cooker. For example, when cooking jams and the like, sticky bubbles are generated by heating the boiled juice from the fruits, and spills There is a problem that it is likely to occur.

Japanese Patent Laid-Open No. 9-000433

Therefore, an object of the present invention is to provide a heating cooker and a rice cooker that can prevent spilling from the inner pot during heating.

In order to solve the above problems, the heating cooker of the present invention is
An inner pot for storing the object to be heated;
A heating cooker body in which the inner pot is stored;
A heating unit that is arranged in the heating cooker body and heats the inner pot;
A lid that is attached to the top of the heating cooker body so as to be openable and closable, and can be closed so as to cover the inner pot,
A rotating body rotatably attached to the inner pot side of the lid,
A drive mechanism for rotating the rotating body;
And a controller that controls the drive mechanism so that the rotating body rotates when bubbles are generated from the object to be heated.

According to the above configuration, when bubbles are generated from the heated object as the heated object is heated, the control unit controls the drive mechanism so that the rotating body rotates. Thereby, the to-be-heated object which is going to spill from the said inner pot can be returned to an inner pot with a rotary body. Therefore, it is possible to prevent spilling from the inner pot during the heating.

In the heating cooker of one embodiment,
The control unit controls the drive mechanism so that the rotating body rotates in the step of boiling the object to be heated.

According to the embodiment, the control unit controls the drive mechanism so that the rotating body rotates in the step of boiling the object to be heated, so that the object to be heated that spills from the inner pot can be reliably reduced.

The cooking device of one embodiment is
It has a temperature sensor that detects the temperature of the inner pot,
The control unit controls the drive mechanism so that the rotating body rotates when it is determined that the temperature of the inner pot exceeds 100 ° C. using the temperature sensor.

According to the embodiment, the control unit controls the drive mechanism so that the rotating body rotates when it is determined that the temperature of the inner pot exceeds 100 ° C. using the temperature sensor. The object to be heated that spills from can be reliably reduced.

In the heating cooker of one embodiment,
The heated object is rice,
The controller controls the drive mechanism so that the rotating body rotates when sticky is generated from the rice.

According to the embodiment, since the control unit controls the drive mechanism so that the rotating body rotates when the sticky is generated from the rice, the sticky spilled from the inner pot can be reliably reduced. .

In the heating cooker of one embodiment,
The rotating body has at least one stirring unit that can receive a driving force of the driving mechanism and change from a lying state to a standing state and from a standing state to a lying state, and the stirring unit remains in a lying state. It can be rotated.

According to the above embodiment, when the rotating body rotates with the stirring unit lying down, the bubbles generated from the heated object can be physically destroyed by the stirring unit rotating together with the rotating body. It is possible to effectively suppress the spilling of water.

In the heating cooker of one embodiment,
The rotator has a plurality of the agitation units.

According to the above embodiment, since the rotating body has a plurality of stirring sections, the effect of suppressing the spilling of the heated object can be enhanced.

In the heating cooker of one embodiment,
The surface on the inner pot side of the rotating body includes a concave end spreading surface.

According to the embodiment, when the rotating body is rotating, if the object to be heated that is about to go out of the inner pan has a concave end-spreading surface on the inner pan side surface of the rotating body, it receives centrifugal force. , Descend along the concave end-spreading surface and fall into the inner pot. Therefore, the object to be heated that is about to go out of the inner pot can be reliably returned to the inner pot.

Also, when the heated object returns from the rotating body into the inner pot, the rotating body is rotating, so that the heated object can be returned evenly into the inner pot.

Note that the divergent surface may be a part of a conical surface as shown in FIG. 8, or a part of a conical surface as shown in FIG. It may be a surface having a circular arc shape as shown.

In the heating cooker of one embodiment,
At least one step portion is provided on the surface of the rotating body on the inner pot side.

According to the embodiment, by providing at least one step on the inner pan side surface of the rotating body, it is possible to physically destroy the bubbles generated from the heated object. Can be suppressed.

In the heating cooker of one embodiment,
The said control part controls the said drive mechanism so that the rotation speed of the said rotary body changes according to the output of the said heating part.

According to the embodiment, the control unit controls the drive mechanism so that the rotation number of the rotating body changes according to the output of the heating unit, so when the bubbles generated from the heated object increase, The drive mechanism can be controlled so that the number of rotations of the rotating body increases. Therefore, it is possible to effectively suppress the spill of the heated object.

For example, the control unit may control the drive mechanism so that the number of rotations of the rotating body increases with an increase in the output of the heating unit.

The rice cooker of the present invention
An inner pot for storing the object to be heated;
A rice cooker body in which the inner pot is stored;
A heating unit arranged in the rice cooker body and heating the inner pot;
A lid that can be opened and closed at the top of the rice cooker body, and can be closed to cover the inner pot,
A rotating body rotatably attached to the inner pot side of the lid,
A drive mechanism for rotating the rotating body,
A surface of the rotating body on the inner pot side includes a concave end spreading surface.

According to the above configuration, for example, at the time of cooking, the sticky substance is about to spill from the inner pot and adheres to the surface of the rotating body on the inner pot side. At this time, when the rotating body is rotated, the inner pot side surface of the rotating body includes a concave divergent surface. Therefore, as shown in FIG. 8, the sticking on the inner pot side surface of the rotating body is concave. It descends along the spreading surface and falls into the inner pot.

Thus, it is possible to forcibly return the mucilage going out of the inner pot to the inner pot by centrifugal force, thus preventing the mucus from going out of the inner pot. Therefore, it is possible to prevent spilling from the inner pot during heating.

In addition, since the above-mentioned mucilage can be prevented from going out of the inner pot, the pregelatinization of rice is promoted, and delicious rice with many umami ingredients can be obtained.

In the rice cooker of one embodiment,
At least one step portion is provided on the surface of the rotating body on the inner pot side.

According to the above embodiment, when the rotating body is rotated at the time of rice cooking, since at least one step portion is provided on the surface on the inner pot side of the rotating body, the viscous foam is physically removed by this step portion. Can be destroyed. As a result, it is possible to suppress the spilling of the above-mentioned stickiness, and to surely promote the alpha conversion of rice.

Moreover, since at least one step portion is provided on the surface of the rotating body on the inner pot side, the viscosity can be returned from the step portion into the inner pot. Accordingly, it is possible to prevent the above-mentioned viscosity from being concentrated and returned to one place in the inner pot, and to widen the area where the alpha conversion of rice is promoted.

According to the heating cooker of the present invention, an inner pot that accommodates an object to be heated, a heating cooker body that houses the inner pot, a heating unit that is disposed in the heating cooker body, and heats the inner pot; A lid that can be opened and closed at the top of the heating cooker body and can be closed so as to cover the inner pot; a rotating body that is rotatably attached to the inner pot side of the lid; and a rotating body And a control unit that controls the drive mechanism so that the rotating body rotates when bubbles are generated from the object to be heated. When bubbles are generated from the heated object, the object to be heated that is about to spill from the inner pot can be returned to the inner pot by the rotating body. Therefore, it is possible to prevent spilling from the inner pot during the heating.

According to the rice cooker of the present invention, it is provided with a rotating body rotatably attached to the inner pot side of the lid, and a drive mechanism for rotating the rotating body, and the inner pot side surface of the rotating body is concave. By including at least a part of the conical surface, the object to be heated can be forced out of the inner pot by centrifugal force. Can be prevented. That is, it is possible to prevent spilling from the inner pot during heating of the object to be heated.

In addition, when the material to be heated is viscous, it can be forced to return to the inner pot by centrifugal force. You can cook delicious rice with many ingredients.

FIG. 1 is a schematic sectional view of a rice cooker according to an embodiment of the present invention. FIG. 2 is a schematic perspective view of the first and second transmission shafts and the rotating arm. FIG. 3 is a schematic perspective view for explaining a lying state of the rotating arm. FIG. 4 is a schematic perspective view for explaining the inverted state of the rotating arm. FIG. 5 is a schematic perspective view of the rotating arm, the inner lid, and the rotating body. FIG. 6 is another schematic perspective view of the rotating arm, the inner lid, and the rotating body. FIG. 7 is a schematic cross-sectional view of the rotating body. FIG. 8 is a schematic cross-sectional view of a rotating body according to an embodiment of the present invention. FIG. 9 is a schematic cross-sectional view of a rotating body according to another embodiment of the present invention. FIG. 10 is a schematic cross-sectional view of a rotating body according to another embodiment of the present invention. FIG. 11 is a schematic bottom view of another rotating body. FIG. 12 is a schematic perspective view of the other rotating body and the inner pot. FIG. 13 is a graph showing the relationship between the temperature detected by the temperature sensor and time. FIG. 14 is a graph showing the relationship between the input power of the induction coil and time. FIG. 15 is a graph showing the relationship between motor ON / OFF and time.

Hereinafter, the rice cooker of the present invention will be described in detail with reference to the illustrated embodiments.

FIG. 1 is a schematic view of a cross section of a rice cooker according to an embodiment of the present invention cut along a vertical plane.

The rice cooker is attached to the top of the rice cooker body 1, the inner pot 2 housed in the rice cooker body 1, and the upper portion of the rice cooker body 1, and can be closed to cover the inner pot 2. A lid 3, an induction coil 4 for inductively heating the inner pot 2, a temperature sensor 5 for detecting the temperature of the inner pot 2, and a single stick And a rotating arm 6 having a shape. The induction coil 4 is an example of the heating unit of the present invention. Moreover, the rice cooker main body 1 is an example of a heating cooker main body. The rotating arm 6 is an example of a stirring unit.

The rice cooker body 1 has an outer case 10 and an inner case (not shown) disposed in the outer case 10. Further, when the inner pot 2 is stored in the rice cooker body 1, the inner case holds the inner pot 2. This inner case is formed of a material having heat resistance and electrical insulation.

The inner pot 2 is formed of a clad material containing a magnetic material. For example, rice or water is put into the inner pot 2. In addition, an annular flange portion 2 a is provided on the edge of the opening at the upper end of the inner pot 2. In addition, the said rice and water are examples of the to-be-heated material of this invention.

The lid body 3 includes an outer lid 7 that is rotatably supported by the rice cooker body 1 and an inner lid 8 that is detachably attached to the inner lid 2 side of the outer lid 7. Moreover, the substantially disc-shaped rotary body 9 is rotatably attached to the inner pan 2 side of the inner lid 8.

In the outer lid 7, a motor 11, a small pulley 12, a belt 13 and a large pulley 14 are arranged. The motor 11 has a rotating shaft 11a, and a small pulley 12 is fixed to the rotating shaft 11a. The belt 13 is wound around a part of the outer periphery of the small pulley 12 and a part of the outer periphery of the large pulley 14. The large pulley 14 is connected to a substantially cup-shaped drive side coupling 15. Thereby, the rotational driving force generated by the motor 11 can be transmitted to the driving side coupling 15 via the small pulley 12, the belt 13 and the large pulley 14. Further, due to the transmission of the rotational driving force by the small pulley 12, the belt 13 and the large pulley 14, the rotational speed of the drive side coupling 15 becomes slower than the rotational speed of the rotational shaft 11 a of the motor 11. The ratio of the rotational speed of the drive side coupling 15 to the rotational speed of the rotating shaft 11a of the motor 11 can be adjusted by changing the sizes of the small pulley 12 and the large pulley 14. The motor 11, the small pulley 12, the belt 13, the large pulley 14 and the driving side coupling 15 are an example of a part of the driving mechanism of the present invention.

The drive side coupling 15 is rotatably accommodated in a recess 3a provided on the inner pan 2 side of the outer lid 7. A driven side coupling 23 is detachably fitted in the driving side coupling 15. By fitting the driven side coupling 23 into the driving side coupling 15, the inner lid 8 and the rotating body 9 are held. Further, the inner surface of the drive side coupling 15 is provided with irregularities. The driven side coupling 23 is an example of a part of the driving mechanism of the present invention.

The inner lid 8 has an outer peripheral edge portion 8a having a substantially U-shaped cross section, and the outer peripheral edge portion 8a is in close contact with the upper surface of the flange portion 2a provided on the upper portion of the inner pot 2 when the lid body 3 is closed. . Thereby, the space between the outer peripheral edge portion 8a of the inner lid 8 and the flange portion 2a of the inner pot 2 is sealed, and it is possible to prevent the stickiness and the like from flowing out therebetween. The inner lid 8 is provided with a steam hole (not shown). The steam in the inner pot 2 is discharged out of the rice cooker through the steam hole. The outer peripheral edge 8a of the inner lid 8 may be formed of a material (for example, a heat resistant elastic material) different from other portions of the inner lid 8.

The rotating body 9 has first and

second frame bodies

16 and 17, and the first transmission shaft 18 passes through the first frame body 16. In addition, a second transmission shaft 19 is disposed between the first frame body 16 and the second frame body 17 so as to be substantially orthogonal to the first transmission shaft 18. Further, the second frame body 17 is positioned on the opposite side of the first housing portion 20 that houses one end portion (terminal portion) of the rotating arm 6 and the first housing portion 20 approximately 180 °, A second accommodating portion 21 that accommodates the other end portion (tip portion) of the rotating arm 6 is provided. Here, one end of the rotating arm 6 is pivotally supported by the second frame 17. Thereby, the rotation arm 6 can be in an upright state substantially parallel to the rotation axis of the rotating body 9 and a lying state substantially perpendicular to the rotation axis of the rotating body 9. In other words, the rotating arm 6 can take a standing state and a lying state with respect to the rotating surface of the rotating body 9. In the upright state, one end of the rotating arm 6 abuts against an inverted stopper 20a that is a part of the first housing portion 20, while the other end of the rotating arm 6 is near the bottom of the inner pan 2. To position. On the other hand, in the above-described lying state, one end of the rotating arm 6 has a gap with the inverted stopper 20a and is not in contact with the inverted stopper 20a, but the other end of the rotating arm 6 is It abuts on a lodging stopper 21a which is a part of the second accommodating portion 21. In addition, you may form the inverted stopper 20a and the fall stopper 21a with a heat resistant elastic material, for example. The first and

second transmission shafts

18 and 19 are an example of a part of the drive mechanism of the present invention.

Further, in the space between the outer case 10 and the inner case, a control unit 22 that controls induction heating by the induction coil 4 and rotational driving force by the motor 11 is disposed.

In FIG. 1, 41 is a lid heater, and 42 is a horizontal heater. The lid heater 41 and the lateral heater 42 are examples of the heating unit.

FIG. 2 is a schematic view of the first and

second transmission shafts

18 and 19 and the rotating arm 6 as viewed obliquely from above.

The first transmission shaft 18 is rotatable with respect to the first and

second frames

16 and 17. A driven side coupling 23 is integrally provided at one end of the first transmission shaft 18. A first miter gear 24 is integrally provided at the center of the first transmission shaft 18. The first miter gear 24 is an example of a part of the drive mechanism of the present invention.

The driven side coupling 23 has a shape that can be fitted into the driving shaft side coupling 15. Further, the upper surface (surface on the outer lid 7 side) of the driven side coupling 23 is provided with unevenness that meshes with the unevenness of the inner surface of the drive shaft side coupling 15.

A second miter gear 25 that meshes with the first miter gear 24 is integrally provided at one end of the second transmission shaft 19. On the other hand, a third miter gear 26 that meshes with the fourth miter gear 27 is integrally provided at the other end of the second transmission shaft 19. The fourth miter gear 27 is fixed to one end portion of the rotation shaft 28. The second to fourth miter gears 25 to 27 and the rotation shaft 28 are an example of a part of the drive mechanism of the present invention.

The central portion of the rotating shaft 28 is detachably fitted into a notch 6a provided at one end of the rotating arm 6. Accordingly, when the rotation shaft 28 rotates, the rotation arm 6 rotates about the rotation shaft 28. That is, the rotating arm 6 is rotated with the rotation of the rotating shaft 28.

In the state of FIG. 3, when the first miter gear 24 rotates in the direction of arrow R, the second miter gear 25, the third miter gear 26, and the fourth miter gear 27 also move with respect to the second frame 17. The rotating arm 6 rotates in a direction in which the other end of the rotating arm 6 is separated from the second frame 17. While the rotating arm 6 is rotating, the rotating body 9 is stationary with respect to the inner lid 8. Thereafter, as shown in FIG. 4, when one end of the rotating arm 6 comes into contact with the inverted stopper 20 a, the rotation of the rotating arm 6 is stopped, and the second miter gear 25 and the third miter gear 26. The fourth miter gear 27 cannot rotate with respect to the second frame 17. When the first transmission shaft 18 rotates in the arrow R direction in this state, the rotating body 9 rotates in the arrow R direction with respect to the inner lid 8. At this time, the rotating arm 6 rotates integrally with the rotating body 9 in an inverted state.

In the state of FIG. 4, when the first miter gear 24 rotates in the direction of the arrow L, the second miter gear 25, the third miter gear 26, and the fourth miter gear 27 also move with respect to the second frame 17. The rotation arm 6 rotates in a direction in which the other end of the rotation arm 6 approaches the second frame body 17. While the rotating arm 6 is rotating, the rotating body 9 is stationary with respect to the inner lid 8. Thereafter, as shown in FIG. 3, the other end of the rotating arm 6 abuts against the overturning stopper 21 a, whereby the rotation of the rotating arm 6 is stopped, and the second miter gear 25 and the third miter gear are stopped. 26 and the fourth miter gear 27 cannot rotate with respect to the second frame 17. In this state, when the first transmission shaft 18 rotates in the arrow L direction, the rotating body 9 rotates in the arrow L direction with respect to the inner lid 8. At this time, the rotating arm 6 rotates integrally with the rotating body 9 in a lying state.

FIG. 5 is a schematic view of the inner lid 8 and the rotating body 9 removed from the outer lid 7 as seen obliquely from below. In addition, in FIG. 5, illustration of the said steam hole is abbreviate | omitted.

The rotating body 9 basically has a structure in which water does not enter with a sealing material such as an O-ring, and can be separated from the inner lid 8 so as to be easily cleaned. Further, in order to improve the cleanability, a non-adhesive process (for example, a fluorine coating process) is performed on the outer surface of the rotating body 9. Further, the same non-adhesive treatment as that of the outer surface of the rotating body 9 is applied to the inner surface of the rotating body 9. Thereby, the washing | cleaning property inside the rotary body 9 is also high.

Further, a part of the rotating arm 6 in a lying state protrudes from the surface of the rotating body 9 on the inner pot 2 side.

In addition, 8b of FIG. 5 is an insertion hole. The driven side coupling 23 is inserted through the insertion hole 8b.

FIG. 6 is a schematic view of the state in which the rotating arm 6 is removed from the state of FIG. 6 as viewed obliquely from above. In addition, in FIG. 6, illustration of the said steam hole is abbreviate | omitted.

Since the rotation arm 6 is connected to the rotation shaft 28 by fitting the central portion of the rotation shaft 28 into the notch 6a, the rotation arm 6 is parallel to the rotation axis of the rotating body 9 in the lying state. If it is moved in the direction and away from the rotating body 9, it can be easily detached from the rotating body 9. Thereby, the washing | cleaning property of the rotation arm 6 can also be performed now easily. Further, a heat-resistant resin (for example, POM (polyacetal) or fluorine-based resin) is used as the material of the rotating arm 6.

FIG. 7 is a schematic view of a cross section of the rotating body 9 taken along a plane including the rotation axis.

The surface of the rotating body 9 on the inner pot 2 side includes a plurality of umbrella-shaped tapered surfaces. More specifically, on the surface of the rotating body 9 on the inner pan 2 side, an annular first inclined surface 29 corresponding to a concave conical surface, and a radially outer side than the first inclined surface 29, A second inclined surface 30 corresponding to a part of the concave conical surface, and an annular third inclined surface that is located radially outward from the second inclined surface 30 and corresponds to a part of the concave conical surface The surface 31 is formed. The first inclined surface 29, the second inclined surface 30, and the third inclined surface 31 have substantially the same inclination angle. The first to third inclined surfaces 29 to 31 are examples of the end spread surface of the present invention.

Further, on the surface of the rotating body 9 on the inner pot 2 side, annular first and second step portions 32 and 33 are formed substantially concentrically with the outer peripheral edge of the rotating body 9. The first step portion 32 is located on the radially inner side than the second step portion 33.

According to the rice cooker having the above configuration, the rotating arm 6 is rotated by rotating the first miter gear 24 in the direction of arrow R by the rotational power of the motor 11 in the state of FIG. Such an inverted state can be achieved. Further, by rotating the first miter gear 24 in the direction of the arrow R by the rotational power of the motor 11, the inverted rotating arm 6 can be rotated integrally with the rotating body 9, so that it rotates. For example, rice and water in the inner pot 2 can be agitated by the rotating arm 6 in an inverted state to perform sufficient washing of the rice.

In the state of FIG. 4, when the first miter gear 24 is rotated in the direction of the arrow L by the rotational power of the motor 11, the rotating arm 6 is rotated to be in a lying state as shown in FIG. 3. When the lid 3 is opened, the pivot arm 6 is not caught, so that the lid 3 can be easily opened. Therefore, the rotation arm 6 can be prevented from obstructing the opening of the lid 3.

Further, although there is one motor 11, the one motor 11 can rotate the rotating arm 6 and rotate the rotating arm 6 and the rotating body 9. Therefore, the lid 3 can be made smaller than the case where the rotation motor for the rotation arm 6 and the rotation motor for the rotation arm 6 and the rotation body 9 are separately provided. As a result, the height of the rice cooker can be reduced.

Moreover, the inner pot 2 is stirred by, for example, rice and water in the inner pot 2 in the preheating process (operation in which the temperature in the inner pot 2 is set to about 60 ° C.) during the rice cooking, for example. The temperature inside can be made uniform. As a result, the water supply unevenness of the rice can be prevented, and the temperature zone (around about 60 ° C.) in which the saccharifying enzyme actively acts in the inner pot 2 increases, so that an effect of increasing the total sugar can be obtained.

In addition, in the start-up process performed next to the preheating process, starch gelatinization starts, and stirring is excellent, such as excessively increasing the viscosity of the rice cooking liquid or deteriorating heat transfer in the inner pot 2. The opposite effect of cooking rice. Therefore, before the start-up step, the first miter gear 24 is rotated in the direction of the arrow L by the rotational power of the motor 11 to rotate the rotating arm 6 to be in a lying state.

And if the said rotation arm 6 will be in a lying state, you may stop the motor 11, but as a means for obtaining further delicious rice, the drive of the motor 11 is continued and the turning arm in the lying state is continued. 6 is rotated integrally with the rotating body 9. If it does so, the viscous material adhering to the said 1st inclined surface 29, the 2nd inclined surface 30, and the 3rd inclined surface 31 will receive centrifugal force, will fall, and will return in the inner pot 2. FIG. As a result, the alpha conversion of the rice in the inner pot 2 is promoted, and delicious rice with a large amount of umami components can be obtained.

Moreover, since the above-mentioned viscosity falls below the first and second step portions 32 and 33, the concentration of the viscosity on one place in the inner pot 2 is prevented and the alpha conversion of the rice is promoted. The area can be expanded.

Moreover, when the above-mentioned rice cooking liquid is boiled, the rotating arm 6 in a lying state is rotated integrally with the rotating body 9, so that it is controlled by a part of the rotating arm 6 protruding from the surface on the inner pan 2 side of the rotating body 9. Can physically destroy viscous bubbles. As a result, it is possible to suppress the spilling of the above-mentioned stickiness and to surely promote the alpha conversion of rice.

Moreover, since the viscous bubbles can be physically destroyed also in the first and second step portions 32, 33, the effect of suppressing the spilling of the viscous powder is high.

Moreover, since the spilling of the above-mentioned viscosity can be suppressed, the cooking time can be shortened by cooking with high heat power.

Further, since there is one rotating arm 6, movement of rice and the like due to rotation of one rotating arm 6 is large, and the rice can be sufficiently stirred.

Moreover, since the said rotation arm 6 is removable from the rotary body 9, it can replace | exchange for the rotation arm of another shape according to the to-be-heated object in the inner pot 2. As shown in FIG.

In the above-described embodiment, the rotating arm 6 in an inverted state may be continuously rotated integrally with the rotating body 9 at the time of washing the rice, or the rotating arm 6 in an inverted state at the time of washing the rice may be the rotating body 9. And may rotate intermittently integrally. That is, the stirring at the time of washing the rice may be either continuous or intermittent.

In the above embodiment, the lid 3 including the outer lid 7 and the inner lid 8 is used. However, a lid that does not include the inner lid 8 may be used.

In the above embodiment, the rotating arm 6 and the rotating body 9 are rotated by the first miter gear 24 to the fourth miter gear 27, etc., but the same operation as the above embodiment is performed. Can be turned by the rotating arm 6 and the rotating body 9, the rotating arm 6 can be rotated by a gear other than the first miter gear 24 to the fourth miter gear 27 and other power transmission mechanisms. Or the rotating body 9 may be rotated.

In the above-described embodiment, a part of the rotating arm 6 in the lying state protrudes from the surface of the rotating body 9 on the inner pot 2 side. The entire moving arm 6 may be protruded.

In the above embodiment, three umbrella-shaped tapered surfaces are formed on the surface of the rotating body 9 on the inner pot 2 side, but one, two, or four or more umbrella-shaped tapered surfaces may be formed. Good. That is, in one embodiment of the present invention, at least one concave divergent surface may be formed on the surface of the rotating body 9 on the inner pot 2 side.

In the above embodiment, the two annular first and second step portions 32 and 33 are formed on the surface of the rotating body 9 on the inner pot 2 side. However, one or three or more annular steps are formed. A part may be formed.

In the above embodiment, the substantially rod-shaped turning arm 6 is used, but a turning arm 6 having a shape other than the substantially rod-like shape (for example, a substantially L-shaped side view) may be used.

In the above-described embodiment, a substantially blade-shaped stirring body may be used instead of the substantially rod-shaped rotating arm 6.

In the above embodiment, a plurality of rotating arms similar to the rotating arm 6 may be used. For example, instead of the rotating body 9, as shown in FIG. 11, a rotating body 209 to which one end portions of the first and second

rotating arms

206A and 206B are rotatably attached may be used. The first and second

rotating arms

206A and 206B are an example of a stirring unit.

The rotating body 209 has a lid side member 250 and an inner pan side member 251 that can be attached to and detached from the surface of the lid side member 250 on the inner pan 2 side, and can be rotated to the inner pan 2 side of the lid 3. Attached to. Between the lid side member 250 and the inner pan side member 251, umbrella gears 225A, 225B, 226A, 226B, 227A, 227B for rotating the first and second

rotating arms

206A, 206B are arranged. Yes. A gear cover 252 that covers the

bevel gears

225A, 225B, 226A, 226B, 227A, and 227B is also disposed between the lid member 250 and the inner pan member 251. First and

second recesses

252A and 252B are provided on the surface of the lid member 250 on the inner pot 2 side, and the user can easily attach and detach the rotating body 209 by grasping the first and

second recesses

252A and 252B. Can be done. In addition, the inner pot side member 251 does not cover the first and

second recesses

252A and 252B, but has a shape that covers the gear cover 252 so that the front ends of the first and

second hooks

254A and 254B can be released. Lock to. The base end portions of the first and

second hooks

254A and 254B are rotatably attached to the lid member 250, and the tip portions of the first and

second hooks

254A and 254B are covered by this rotation. The body side member 250 is locked or the locking is released. Note that the umbrella gears 225A, 225B, 226A, 226B, 227A, and 227B are examples of a part of the drive mechanism.

The first and second

rotating arms

206A and 206B rotate in the same manner as the rotating arm 6 when the transmission shaft 218 that receives the rotational driving force of the motor 11 rotates, so that the lying state of FIG. 12 to the standing state of FIG. 12, or the standing state of FIG. 12 can be transitioned to the lying state of FIG. Note that the basic driving method and the control method of the fallen state and the standing state of the first and second

rotating arms

206A and 206B are the same as those in the above embodiment, and therefore will be omitted. The transmission shaft 218 is an example of a part of the drive mechanism.

As described above, since the surface of the rotating body 209 on the inner pot 2 side is uneven, when the rotating body 209 rotates, the viscous bubbles are physically destroyed on the surface of the rotating body 209 on the inner pot 2 side. Can suppress the spilling of mucus.

In the above embodiment, the inner pot 2 is induction-heated, but the inner pot 2 may be resistance-heated, for example. In this case, instead of the induction coil 4, a resistance heater may be used as an example of the heating unit of the present invention.

In the above embodiment, the control unit 22 may control the motor 11 and the like so that the rotating body 9 rotates when bubbles are generated in the liquid in the inner pot 8.

In the said embodiment, you may make it the control part 22 control the motor 11 etc. so that the rotary body 99 may rotate in the process (for example, starting process or boiling maintenance process) of boiling the water in the inner pot 2. . At this time, the control part 22 may determine whether it became the process of boiling the water in the inner pot 2 based on the time preset from the start of rice cooking, or a temperature sensor. The determination may be made based on the output of 5.

In the said embodiment, when the control part 22 judges that the temperature of the inner pot exceeds 100 degreeC using the temperature sensor 5, it controls the motor 11 etc. so that the rotary body 9 may rotate. Also good.

In the above embodiment, the control unit 22 may control the motor 11 and the like so that the number of rotations of the rotating body 9 changes according to the output of the induction coil 4 and the like.

Hereinafter, an example of the control performed by the control unit 22 will be described.

FIG. 13 is a graph showing the change over time of the temperature detected by the temperature sensor 5 from when the rice cooker starts cooking to the steaming step. Moreover, FIG. 14 is a graph which shows the time change of the input electric power of the induction coil 4 from the said rice cooker starting rice cooking to a steaming process. Moreover, FIG. 15 is a graph which shows the time change of ON / OFF of the motor 11 from the said rice cooker starting rice cooking to a steaming process.

As shown in FIG. 13 to FIG. 15, the rotating body 9 is driven at the end of the preheating process, and the inside of the inner pot 2 is uniformly stirred. Immediately after that, when the input power of the induction coil 4 is 1300 W which is the maximum, the power is also input to the lid heater 41 and the lateral heater 42 and the inner pot 2 is heated with the maximum output of 1400 W in total, and the preheating process is completed. And start the startup process.

When the start-up process is entered, in order to rapidly increase the temperature in the inner pot 2, the input power of the induction coil 4 is set to about 1000 W, and at the same time, the power is input to the lid heater 41 and the lateral heater 42, If the temperature of 2 reaches the boiling temperature of water, it will move to a boiling maintenance process.

In the boiling maintenance step, the temperature of the inner pot 2 is raised to 100 ° C or higher. At this time, the amount of water in the inner pot 2 is reduced, and a viscous viscosity is easily generated. Therefore, when a preset time has elapsed from the start of the boiling maintenance process or when the temperature of the inner pot 2 reaches a preset temperature, the motor 11 is turned on and the rotating body 9 is set at 400 rpm, for example. Rotate. Thereby, while being able to return the sticky adhering to the 1st inclined surface 29 of the rotary body 9, the 2nd inclined surface 30, and the 3rd inclined surface 31 in the inner pot 2 with a centrifugal force, it is the rotation state of a fallen state. The sticky bubbles can be physically destroyed by a part of the moving arm 6 to suppress the sticky spill.

In contrast, in conventional rice cookers, the amount of heating of the inner pot was reduced, and the amount of mucus produced was suppressed, thereby preventing the mucus from flowing out from the steam port provided on the lower surface of the inner lid. In addition, in other conventional rice cookers, a thickening portion is provided on the upper side of the inner lid, and the amount of stickiness is detected while accumulating the viscosity in this thickening portion to limit the heating amount of the inner pot. It was.

That is, the rice cooker of this embodiment does not need to reduce or limit the heating amount as described above in the boiling maintenance step.

Moreover, in the rice cooker of this embodiment, it is induced from about 25 minutes when the temperature of the inner pot 2 is rapidly increased to about 38 minutes when the temperature of the rice exceeds 100 ° C. and the water in the inner pot 2 is almost eliminated. Rice cooking can be performed while the input power of the coil 4 is kept high.

In addition, by cooking rice with such a high heating power, convection of rice and water in the inner pot 2 is promoted, and uniform heating becomes possible. As a result, since the pre-gelatinization of the whole rice in the inner pot 2 can be promoted, delicious rice can be cooked.

Moreover, by maintaining such a high thermal power, the generation of mucilage itself can be promoted. At this time, as described above, the mucus adhering to the first inclined surface 29, the second inclined surface 30 and the third inclined surface 31 of the rotating body 9 is returned into the inner pot 2 by centrifugal force, and the rice Since it is possible to re-adhere the sticky water, it is possible to easily form a water retaining film on the rice surface. Therefore, the surface gloss of the cooked rice can be improved, and cooked rice that looks delicious can be cooked.

Moreover, since the sticky can be returned into the inner pot 2 by the rotation of the rotating body 9, the sticky can be returned to the entire rice surface in the inner pot 2 and the finish of the whole rice surface is made uniform. be able to.

Moreover, compared with the other conventional rice cookers provided with the above-mentioned mucus reservoir, the mucilage, which is starchy material containing nutrition and umami, can be returned to the inner pot 2, leaving no nutrition and umami. It can be returned to the rice.

Moreover, in the said embodiment, it is made for the control part 22 to have a memory | storage part which memorize | stores the control program for controlling the induction coil 4 and the motor 11 in order to put fruit etc. in the inner pot 2 and to make jam. Also good. By doing this, it is possible to destroy the bubbles of the fruits that are generated when making jam, as well as the musk cutting in cooking rice, heating can be promoted without reducing the heating power, cooking time Shortening is possible.

Although specific embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the present invention. For example, a configuration in which the rotating arm 6 is eliminated in the above embodiment may be an embodiment of the present invention. In this case, even if the rice cannot be washed, it is possible to return the sticky into the inner pot 2 or destroy the sticky bubbles by rotating the rotating body 9.

For example, when people who live in high places such as Mt. Fuji and Everest use the heating cooker of the present invention, in the place where they live, even if the object to be heated does not reach 100 ° C, it boils. The control unit may control the drive mechanism so that the rotating body rotates when bubbles are generated from the object to be heated. In this case, the control unit may determine that bubbles are generated from the heated object when a preset time has elapsed since the heating of the heated object started. Alternatively, the temperature of the inner pot may be detected by a temperature sensor, and when the temperature of the inner pot reaches a preset temperature, it may be determined that bubbles are generated from the object to be heated. .

DESCRIPTION OF SYMBOLS 1 ... Rice cooker main body 2 ... Inner pan 3 ... Cover body 4 ... Inductive coil 5 ... Temperature sensor 6 ... Turning arm 7 ... Outer cover 8 ... Inner cover 9,209 ... Rotating body 11 ... Motor 12 ... Small pulley 13 ... Belt DESCRIPTION OF SYMBOLS 14 ... Large pulley 15 ... Drive side coupling 18 ... 1st transmission shaft 19 ... 2nd transmission shaft 20 ... 1st accommodating part 20a ... Inverted stopper 21 ... 2nd accommodating part 21a ... Falling stopper 23 ... Driven Side coupling 24 ... first miter gear 25 ... second miter gear 26 ... third miter gear 27 ... fourth miter gear 28 ... rotating shaft 29 ... first inclined surface 30 ... second inclined surface 31 ... Third inclined surface 32 ... First step portion 33 ... Second step portion 41 ... Lid heater 42 ...

Horizontal heater

225A, 225B, 226A, 226B, 227A, 227B ... Umbrella gear 206A ... First rotation Arm 206B ... second Movement arm 218 ... transmission shaft

Claims

An inner pot (2) for storing the object to be heated;
A heating cooker body (1) in which the inner pot (2) is stored;
A heating unit (4, 41, 42) disposed in the heating cooker body (1) for heating the inner pot (2);
A lid (3) attached to the top of the heating cooker body (1) so as to be openable and closable so as to cover the inner pot (2);
A rotating body (9, 209) rotatably attached to the inner pot (2) side of the lid (3);
Drive mechanisms (11, 12, 13, 14, 15, 18, 19, 23, 24, 25, 26, 27, 28, 225A, 225B, 226A, 226B, and the like that rotate the rotating body (9, 209). 227A, 227B),
The drive mechanism (11, 12, 13, 14, 15, 18, 19, 23, 24, 25) so that the rotating body (9, 209) rotates when bubbles are generated from the heated object. , 26, 27, 28, 225A, 225B, 226A, 226B, 227A, 227B) and a controller (22) for controlling the cooking device.
The heating cooker according to claim 1, wherein
The control unit (22) includes the drive mechanisms (11, 12, 13, 14, 15, 18, 19, 23, and so that the rotating body (9, 209) rotates in the step of boiling the object to be heated. 24, 25, 26, 27, 28, 225A, 225B, 226A, 226B, 227A, 227B).
The heating cooker according to claim 1 or 2,
A temperature sensor (5) for detecting the temperature of the inner pot (2) is provided,
When the controller (22) determines that the temperature of the inner pot (2) exceeds 100 ° C. using the temperature sensor (5), the rotating body (9, 209) is rotated. And controlling the driving mechanism (11, 12, 13, 14, 15, 18, 19, 23, 24, 25, 26, 27, 28, 225A, 225B, 226A, 226B, 227A, 227B). To cook.
In the heating cooker according to any one of claims 1 to 3,
The heated object is rice,
The control unit (22) is configured to drive the drive mechanisms (11, 12, 13, 14, 15, 18, and so that the rotating body (9, 209) rotates when sticky is generated from the rice. 19, 23, 24, 25, 26, 27, 28, 225A, 225B, 226A, 226B, 227A, 227B).
In the heating cooker according to any one of claims 1 to 4,
The rotating body (9, 209) is connected to the drive mechanism (11, 12, 13, 14, 15, 18, 19, 23, 24, 25, 26, 27, 28, 225A, 225B, 226A, 226B, 227A, 227B), and has at least one stirring unit (6, 206A, 206B) capable of transitioning from the lying state to the standing state and from the standing state to the lying state, and the stirring unit (6, 206A). , 206B) can be rotated while in a lying state.
The cooking device according to claim 5,
The rotary cooker (9, 209) has a plurality of the stirring sections (6, 206A, 206B).
In the heating cooker according to any one of claims 1 to 6,
The heating cooker characterized in that the surface of the rotating body (9, 209) on the inner pan (2) side includes a concave end spreading surface (29, 30, 31).
In the heating cooker according to any one of claims 1 to 7,
A heating cooker characterized in that at least one step (32, 33) is provided on a surface of the rotating body (9, 209) on the inner pot (2) side.
In the heating cooker according to any one of claims 1 to 8,
The control unit (22) is configured to drive the drive mechanisms (11, 12, 13, and so that the number of rotations of the rotating body (9, 209) changes according to the output of the heating unit (4, 41, 42). 14, 15, 18, 19, 23, 24, 25, 26, 27, 28, 225A, 225B, 226A, 226B, 227A, 227B).
An inner pot (2) for storing the object to be heated;
A rice cooker body (1) in which the inner pot (2) is stored;
A heating unit (4, 41, 42) disposed in the rice cooker body (1) for heating the inner pot (2);
A lid (3) attached to the top of the rice cooker body (1) so as to be openable and closable so as to cover the inner pot (2);
A rotating body (9, 209) rotatably attached to the inner pot (2) side of the lid (3);
Drive mechanisms (11, 12, 13, 14, 15, 18, 19, 23, 24, 25, 26, 27, 28, 225A, 225B, 226A, 226B, and the like that rotate the rotating body (9, 209). 227A, 227B),
The rice cooker characterized in that the surface of the rotating body (9, 209) on the inner pot (2) side includes a concave end spreading surface (29, 30, 31).