JP2013223597A - Cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cooker capable of reliably turning an agitator body.SOLUTION: A rice cooker which is one example of a cooker, includes: an inner pot 7 accommodating rice and water; a rotator 11 provided at the upper part of the inner pot 7; first and second agitation arms 12A and 12B which are turnably attached to the rotator 11 and which agitate the rice and the water in the inner pot 7; a drive motor which turns the rotator 11; and a control unit which controls the drive motor. The rotator 11 includes an umbrella gear 30 for use in both of the first and second agitation arms, an umbrella gear for the first agitation arm, and an umbrella gear 31B for the second agitation arm, which transmit a driving force of the drive motor to the first and second agitation arms 12A and 12B so as to turn the first and second agitation arms 12A and 12B. When the rotator 11 remaining stationary with respect to the inner pot 7 is turned, the inertia moment of the rotator 11 is great enough to generate at least the turning of the first and second agitation arms 12A and 12B among the rotation of the rotator 11 and the rotation of the first and second agitation arms 12A and 12B.

Description

  The present invention relates to a cooking device such as a rice cooker or a microwave oven.

  Conventionally, as a rice cooker that is an example of a heating cooker, a rice cooker body that houses an inner pot, a lid that can be opened and closed attached to the upper part of the rice cooker body, and a gap between the lid and the inner pot (1) (Japanese Patent Laid-Open No. 7-289424 (Patent Document 1)), which is provided with a rotating body that is rotatably arranged, a drive unit that rotates the rotating body, and a stirring body that is rotatably attached to the rotating body. Reference 1)).

  Therefore, the conventional rice cooker can stir the rice in the inner pot with the stirrer by rotating the rotating body after rotating the stirrer and bringing it into contact with the rice in the inner pot.

JP-A-7-289424

  By the way, if a plurality of gears are mounted on the rotating body and the driving force received by the rotating body from the drive unit is transmitted to the stirring body by the plurality of gears, the stirring body can be rotated.

  However, when the above gear is used, when the rotating body stationary with respect to the inner pot is rotated, if the torque generated by the drive unit is small, the stirring body cannot be rotated, and only the rotating body is The problem of rotating will occur.

  Then, the subject of this invention is providing the heating cooker which can rotate a stirring body reliably.

In order to solve the above problems, the heating cooker of the present invention is
An accommodating portion for accommodating an object to be heated;
A rotating body provided on the housing part;
A stirrer that is rotatably attached to the rotating body and stirs the object to be heated in the housing;
A drive unit for rotating the rotating body;
A control unit for controlling the driving unit;
A plurality of gears mounted on the rotating body and transmitting the driving force of the driving unit to the stirring body to rotate the stirring body;
The moment of inertia of the rotating body is such that when the rotating body that is stationary with respect to the housing portion is rotated, at least rotation of the stirring body occurs between rotation of the rotating body and rotation of the stirring body. It is characterized by a large degree.

  According to the above configuration, when the rotating body that is stationary with respect to the housing portion is rotated, the driving force of the driving unit is transmitted to the stirring body via the plurality of gears, so that the stirring body can be rotated. . At this time, since the moment of inertia of the rotating body is large enough to cause at least the rotation of the stirring body between the rotation of the rotating body and the rotation of the stirring body, the stirring body rotates even if the rotating body rotates. It is possible to prevent a state where no operation occurs. That is, only the rotation of the rotating body does not occur, and the stirring body can be reliably rotated.

In the heating cooker of one embodiment,
When the control unit rotates the rotating body that is stationary with respect to the housing unit, at least the stirrer rotation of the rotation of the rotation body and the rotation of the stirring body is abrupt. Rapid acceleration control means for controlling the drive unit is provided so that acceleration occurs.

  According to the embodiment, when the rotating body that is stationary with respect to the housing portion is rotated, the rapid acceleration control unit is configured to rotate at least the stirring body between the rotation of the rotating body and the rotation of the stirring body. Since the drive unit is controlled so that rapid acceleration to the extent that it occurs, a large driving force can be applied to the plurality of gears. Therefore, the agitator can be rotated more reliably.

In the heating cooker of one embodiment,
When the rotating part that is stationary with respect to the housing part is rotated, the control part includes a sudden reversing control unit that controls the driving part so as to suddenly reversely rotate in the reverse direction after the forward rotation has occurred. Have.

  According to the above embodiment, when rotating the rotating body that is stationary with respect to the housing portion, the sudden reversing control means controls the driving unit so as to suddenly reversely rotate in the reverse rotation after the forward rotation has occurred. Therefore, rapid acceleration can be obtained by utilizing the reaction force of torque during forward rotation. Therefore, as a result of being able to apply a large driving force to the plurality of gears, the stirrer can be rotated more reliably.

The cooking device of one embodiment is
A restricting portion capable of restricting the rotation of the rotating body is provided.

  According to the above embodiment, when rotating the rotating body that is stationary with respect to the housing portion, by restricting the rotation of the rotating body with the restricting portion, the rotation of the rotating body and the rotation of the stirring body, Only the rotation of the rotating body can be surely prevented.

The heating cooker of the present invention is
An accommodating portion for accommodating an object to be heated;
A rotating body provided on the housing part;
A stirrer that is rotatably attached to the rotating body and stirs the object to be heated in the housing;
A drive unit for rotating the rotating body;
A control unit for controlling the driving unit;
A plurality of gears mounted on the rotating body and transmitting the driving force of the driving unit to the stirring body to rotate the stirring body;
When the control unit rotates the rotating body that is stationary with respect to the housing unit, at least the stirrer rotation of the rotation of the rotation body and the rotation of the stirring body is abrupt. It is characterized by having rapid acceleration control means for controlling the drive unit so that acceleration occurs.

The heating cooker of the present invention is
An accommodating portion for accommodating an object to be heated;
A rotating body provided on the housing part;
A stirrer that is rotatably attached to the rotating body and stirs the object to be heated in the housing;
A drive unit for rotating the rotating body;
A control unit for controlling the driving unit;
A plurality of gears mounted on the rotating body and transmitting the driving force of the driving unit to the stirring body to rotate the stirring body;
When the rotating part that is stationary with respect to the housing part is rotated, the control part includes a sudden reversing control unit that controls the driving part so as to suddenly reversely rotate in the reverse direction after the forward rotation has occurred. It is characterized by having.

The heating cooker of the present invention is
An accommodating portion for accommodating an object to be heated;
A rotating body provided on the housing part;
A stirrer that is rotatably attached to the rotating body and stirs the object to be heated in the housing;
A drive unit for rotating the rotating body;
A control unit for controlling the driving unit;
A plurality of gears mounted on the rotating body and transmitting the driving force of the drive unit to the stirring body to rotate the stirring body;
And a restricting portion capable of restricting the rotation of the rotating body.

  According to the heating cooker of the present invention, the storage unit for storing the object to be heated, the rotating body provided on the storage unit, and the rotating body are rotatably attached to the object to be heated in the storage unit. A plurality of agitators, a driving unit that rotates the rotating body, a control unit that controls the driving unit, and a plurality of components that are mounted on the rotating body and transmit the driving force of the driving unit to the agitating body to rotate the agitating body The rotation moment of the rotating body is at least one of the rotation of the rotating body and the rotation of the stirring body. Since it is large to the extent, it is possible to prevent only the rotation of the rotating body, and to reliably rotate the stirring body.

FIG. 1 is a schematic perspective view of the heating cooker according to the embodiment of the present invention when the lid is closed. FIG. 2 is a schematic perspective view of the heating cooker when the lid is opened. FIG. 3 is a schematic bottom view of the rotating body of the rice cooker. FIG. 4 is a schematic perspective view for explaining the stirring state of the first and second stirring arms. FIG. 5 is a schematic end view of the rice cooker. FIG. 6 is a control block diagram of the rice cooker. FIG. 7 is a control block diagram for explaining a modification of the rice cooker. FIG. 8 is a control block diagram for explaining a modification of the rice cooker. FIG. 9 is a schematic cross-sectional view for explaining a modification of the rice cooker. FIG. 10 is a schematic bottom view for explaining a modification of the rice cooker.

  Hereinafter, the heating cooker of this invention is demonstrated in detail by embodiment of illustration.

  FIG. 1 is a schematic perspective view of a rice cooker according to an embodiment of the present invention viewed obliquely from above.

  The rice cooker includes a rice cooker body 1 and a lid 2 attached to the rice cooker body 1 so as to be openable and closable. In addition to rice cooking, the rice cooker can cook boiled food and steamed food.

  An open button 3 for opening the lid 2 is provided on the front surface of the rice cooker body 1. On the other hand, the tip of the power cord 4 protrudes from the rear surface of the rice cooker body 1. Most of the power cord 4 is wound around a cord reel (not shown) in the rice cooker body 1 so that it can be pulled out.

  In the front part of the upper surface of the lid 2, a liquid crystal display unit 5 for displaying a cooking method, a cooking name, and the like, and a plurality of operation buttons 6, 6,. Further, the steam in the inner pot 7 (see FIG. 2) is discharged from a steam discharge port 51 at the rear of the upper surface of the lid 2.

  FIG. 2 is a schematic perspective view of the rice cooker with the lid 2 opened.

  The rice cooker body 1 contains an inner pot 7, and rice, water, and the like as an example of an object to be heated enter the inner pot 7. Further, a locked portion 8 is provided at the front portion of the upper surface of the rice cooker body 1. A locking portion 23 provided at the front portion of the lower surface of the lid 2 is releasably locked to the locked portion 8. In addition, a lock mechanism 9 that locks the lid 2 is provided in the rice cooker body 1. When the lock mechanism 9 is not locking the lid 2, when the open button 3 is pressed, the locked portion 8 moves rearward and the locking of the locking portion 23 with respect to the locked portion 8 is released. The On the other hand, when the lock mechanism 9 locks the lid 2, even if the open button 3 is pressed, the locked portion 8 does not move backward, and the locking portion 23 is locked to the locked portion 8. It will not be released. Further, an induction heating coil 10 for induction heating the inner pot 7 is installed in the rice cooker body 1. In addition, the inner pot 7 is an example of an accommodating part.

  The inner pan 7 is formed of a high heat conductive member such as aluminum, and a magnetic material such as stainless steel is attached to the outer surface of the inner pan 7 to improve heating efficiency. It is coated.

  The lid body 2 includes an outer lid 21 positioned on the side opposite to the inner pot 7 side when the lid body 2 is closed, and an inner lid 22 positioned on the inner pot 7 side when the lid body 2 is closed. Have. One drive motor 24 is installed in the right corner of the rear portion of the outer lid 21. A connecting shaft 55 (see FIG. 5) is rotatably attached to the central portion of the outer lid 21. The connecting shaft 55 rotates by receiving the rotational driving force generated by the drive motor 24 via a pulley (not shown) and a belt (not shown). The drive motor 24 is an example of a drive unit.

  Moreover, the rotary body 11 is rotatably arranged between the rice cooker body 1 and the lid body 2. The rotating body 11 is detachably attached to the lid body 2. More specifically, one end of the rotating shaft 15 protrudes from the portion of the rotating body 11 on the lid 2 side (see FIG. 4). One end of the rotating shaft 15 is detachably connected to the connecting shaft 55 of the outer lid 21 and rotates integrally with the connecting shaft 55. The rotating shaft 15 is rotatable with respect to the rotating body 11.

  First and second stirring arms 12A and 12B are attached to the rotating body 11. The first and second stirring arms 12A and 12B are adjacent to the rotating body 11 in the radial direction, and are separated from the stirring state in contact with the rice in the inner pot 7 and the rice in the inner pot 7. It is possible to take a non-stirring state. That is, each of the first and second stirring arms 12A and 12B has a base end portion rotatably attached to the rotating body 11, and a distal end portion is separated from the rotating body 11 or approaches the rotating body 11. It is possible. The first and second stirring arms 12A and 12B are examples of stirring bodies.

  FIG. 3 is a schematic view of the rotating body 11 as viewed from the inner pot 7 side.

  The rotating body 11 is equipped with a plurality of bevel gears that transmit the driving force of the drive motor 24 to the first and second stirring arms 12A and 12B in order to rotate the first and second stirring arms 12A and 12B. . More specifically, the rotator 11 has a resin lid member 13 and a resin inner pan member 14 detachably attached to the inner pan 7 surface of the lid member 13. ing. Between the lid member 13 and the inner pan member 14, the first and second stirring arm umbrella gears 30, the first stirring arm umbrella gears 31A, 32A, 33A, and the second stirring arm umbrella gear 31B are provided. , 32B, 33B. The rotational drive of the rotary shaft 15 is transmitted to the metal first stirring arm rotation shaft 34A via the first and second stirring arm umbrella gears 30 and the first stirring arm umbrella gears 31A, 32A, 33A. The second stirring arm umbrella gear 30 and the second stirring arm umbrella gears 31B, 32B, 33B are transmitted to the metal second stirring arm rotating shaft 34B. As a result, when the rotary shaft 15 rotates, the first and second stirring arms 12A and 12B are rotated about the first and second stirring arm rotating shafts 34A and 34B. It is possible to switch from the non-stirring state shown to the stirring state shown in FIG. 4 or from the stirring state to the non-stirring state. The first and second stirring arm umbrella gears 30, the first stirring arm umbrella gears 31A, 32A, and 33A and the second stirring arm umbrella gears 31B, 32B, and 33B are examples of gears.

  Moreover, as shown in FIG. 3, the part by the side of the inner pan 7 of the rotary body 11 has the narrow part 11a in the rotation center vicinity, and has the wide parts 11b and 11c wider than the narrow part 11a. At the end. The narrow width portion 11a is narrower than the wide width portions 11b and 11c. That is, the portion on the inner pan 7 side of the rotating body 11 has a shape like a flat gourd. The portion of the rotating body 11 on the inner pan 7 side has a first curved surface 16A having a circular arc shape in plan view on the first stirring arm 12A side, and a second curved shape having a circular arc shape in plan view on the second stirring arm 12B side. It has a surface 16B. Thus, the first and second stirring arms 12A and 12B are adjacent to the rotating body 11 in the radial direction and have gaps S1 and S2 between the rotating body 11 in the non-stirring state. .

  The base part of the first stirring arm 12A is attached to the wide part 11b via the first stirring arm rotating shaft 34A, while the base part of the second stirring arm 12B is secondly attached to the wide part 11c. It is attached via the rotating shaft 34B for the stirring arm.

  As shown in FIG. 4, a slide lock portion 40 that is slidable with respect to the lid member 13 is provided on the lid member 13. A through hole 140 through which the rotary shaft 15 is inserted is provided at the center of the slide lock portion 40. The through hole 140 includes a small diameter through hole 140a and a large diameter through hole 140b having a diameter larger than that of the small diameter through hole 140a. The small diameter through hole 140a and the large diameter through hole 140b are arranged side by side in the slide direction of the slide lock portion 40.

  When the slide lock portion 40 is slid in the direction of the arrow S1 and the rotary shaft 15 is positioned in the small diameter through hole 140a, the peripheral portion of the small diameter through hole 140a is an annular groove 55a of the connecting shaft 55 (see FIG. 5). ). As a result, the connection between the rotating shaft 15 and the connecting shaft 55 cannot be released, and the rotating body 11 cannot be removed from the lid 2. On the other hand, when the slide lock 40 is slid in the direction of the arrow S2 and the rotary shaft 15 is positioned in the large diameter through hole 140b, the peripheral edge of the large diameter through hole 140b is fitted into the annular groove 55a of the connecting shaft 55. do not do. Accordingly, the connection between the rotating shaft 15 and the connecting shaft 55 can be released, and the rotating body 11 can be detached from the lid body 2.

  In addition, in FIG. 4, illustration of the rice cooker main body 1 and the cover body 2 is abbreviate | omitted so that 1st, 2nd stirring arm 12A, 12B of the stirring state can be visually recognized.

  Drawing 5 is a figure showing typically the end face which cut the above-mentioned rice cooker with the perpendicular plane.

  The rice cooker body 1 has an outer case 41 and an inner case 42 that is disposed in the outer case 41 and in which the inner pot 7 is accommodated. The inner case 42 is formed of a material having heat resistance and electrical insulation. A temperature sensor 43 that contacts the bottom of the inner pot 7 is disposed from the center of the bottom of the inner case 42. The temperature sensor 43 sends a signal indicating the temperature of the inner pot 7 to the control unit 100 (see FIG. 6).

  Although not shown, a power source, a cord reel for winding the power cord 4 and the like are arranged on the rear side (right side in FIG. 5) of the space between the outer case 41 and the inner case 42. The power supply unit includes a power supply circuit, an induction heating coil inverter circuit 51 (see FIG. 6), and the like, and the induction heating coil inverter circuit 51 generates an alternating magnetic field in the induction heating coil 10.

  A support portion 52 that supports one end of the inner pot 22 is provided on the inner portion of the outer lid 21. A steam cap 60 made of heat-resistant plastic is detachably attached to the inner part of the outer lid 21. The steam cap 60 guides the steam generated in the inner pot 7 to the outside of the rice cooker body 1 as indicated by an arrow in the figure. Further, a part of the inner cap 22 overlaps a part of the steam cap 60, and the steam cap 60 cannot be removed from the outer lid 21 unless the inner lid 22 is removed from the outer lid 21. More specifically, the steam cap 60 includes a first extending portion 61 extending from the connecting shaft 55 side toward the hinge shaft 53 side, and a second extending portion 62 extending in a direction substantially parallel to the connecting shaft 55. And have. At the end of the first extending portion 61 on the connecting shaft 55 side, an inlet 63 through which steam flows is provided, while on the outer side of the second extending portion 62 (on the side opposite to the inner pot 7 side) An outlet 64 through which steam flows out is provided. Further, an elastically deformable claw portion 65 that is releasably locked with the other end of the inner lid 22 is provided at an end portion of the first extending portion 61 on the hinge shaft 53 side. In addition, an opening 66 through which blown air from the steam exhaust fan 56 flows is provided in the middle of the second extending portion 62.

  In addition, 54 of FIG. 5 is a spring which urges the lid body 2 in the opening direction.

  FIG. 6 is a control block diagram of the rice cooker. In FIG. 6, only main components are shown, and other components are not shown.

  The rice cooker includes a control unit 100 including a microcomputer and an input / output circuit. The control unit 100 controls the liquid crystal display unit 5, the drive motor 24, the induction heating coil inverter circuit 44, and the like based on signals from the operation buttons 6, 6,..., The lock mechanism 9, and the temperature sensor 43. Further, the control unit 100 is necessary to rotate the first and second stirring arms 12A and 12B when the rotating body 11 stationary with respect to the lid body 2 and the inner pot 7 is rotated by the drive motor 24. The drive motor 24 is controlled such that the drive motor 24 generates a torque that is greater than or equal to a certain torque.

  According to the rice cooker having the above configuration, when the first and second stirring arms 12A and 12B are in the non-stirring state of FIG. Clockwise). Then, the driving force of the drive motor 24 is changed through the first and second stirring arm umbrella gears 30, the first stirring arm umbrella gears 31A, 32A, 33A and the second stirring arm umbrella gears 31B, 32B, 33B. 1, transmitted to the second stirring arms 12A, 12B. Thereby, the 1st, 2nd stirring arms 12A and 12B can be rotated below, and it can be in the stirring state of FIG. Further, when the rotation shaft 15 is continuously rotated in the forward direction, the base ends of the first and second stirring arms 12A and 12B (ends on the first and second stirring arm rotating shafts 34A and 34B side) are rotated. The first and second stirring arms 12A and 12B in the stirring state can be rotated integrally with the rotating body 11 because they cannot rotate by contacting the wide portions 11b and 11c. As a result, for example, rice and water in the inner pot 7 can be stirred by the first and second stirring arms 12A and 12B.

  On the other hand, when the first and second stirring arms 12A and 12B are in the stirring state shown in FIG. 4, the drive motor 24 rotates the rotating shaft 15 in the reverse direction (counterclockwise as viewed from the lid 2 side). Then, the driving force of the drive motor 24 is changed through the first and second stirring arm umbrella gears 30, the first stirring arm umbrella gears 31A, 32A, 33A and the second stirring arm umbrella gears 31B, 32B, 33B. 1, transmitted to the second stirring arms 12A, 12B. Thereby, the 1st, 2nd stirring arms 12A and 12B can be rotated upward, and it can be in the non-stirring state of FIG. 2, FIG. Furthermore, if the rotating shaft 15 is continuously rotated in the reverse direction, the tip portions of the first and second stirring arms 12A and 12B (end portions on the opposite side to the first and second stirring arm rotating shafts 34A and 34B side) are The first and second stirring arms 12A and 12B in the non-stirring state can be rotated integrally with the rotating body 11 because they cannot rotate by contacting the lid member 13. As a result, the viscous foam in the inner pot 7 can be physically destroyed by the rotating body 11 and the first and second stirring arms 12A and 12B. As a result, it is possible to reduce the spilling of the above-mentioned mucilage and promote the alpha conversion of rice.

  Thus, the rotation of the rotating body 11 and the rotation of the first and second stirring arms 12A and 12B can be performed by one drive motor 24.

  The rotating body 11 has metal first and second stirring arm rotation shafts 34A and 34B mounted on the end portions and wide portions 11b and 11c that are wider than the narrow portion 11a. At the end. As a result, the moment of inertia of the rotating body 11 causes the rotation of the rotating body 11 and the first and second stirring arms 12A and 12B when rotating the rotating body 11 stationary with respect to the lid body 2 and the inner pot 7. The rotation is large enough to cause at least the rotation of the first and second stirring arms 12A and 12B. Therefore, although the rotary body 11 rotates, it can prevent that 1st, 2nd stirring arm 12A, 12B does not turn. That is, only the rotation of the rotating body 11 can be prevented, and the first and second stirring arms 12A and 12B can be reliably rotated.

  Further, in order to reliably rotate the first and second stirring arms 12A and 12B, the rotational speed of the rotation of the first and second stirring arms 12A and 12B may not be excessively increased. The rotational speed of the rotation of the second stirring arms 12A and 12B can be kept low. Therefore, the noise generated when the first and second stirring arms 12A and 12B are rotated can be reduced, and the grade of the drive motor 24 can be lowered.

  Further, since the first and second stirring arms 12A and 12B can be reliably rotated, the first and second stirring arms 12A and 12B are in contact with rice and water halfway, that is, 1 and the second stirring arms 12A and 12B can be prevented from rotating together with the rotating body 11 in a state where the tip ends of the second stirring arms 12A and 12B are not lowered. Therefore, scattering of the rice and water can be prevented.

  In the above embodiment, an example in which the present invention is applied to an induction heating rice cooker has been described. However, the present invention may be applied to, for example, a resistance heating rice cooker.

  In the above embodiment, the base end portions of the first and second stirring arms 12A and 12B are rotatably attached to the rotating body 11, but the rotating body 11 includes the first stirring arms 12A and 12B. Only one base end may be pivotably attached. That is, in the present invention, the number of stirring bodies is not limited to two, but may be one, for example.

  In the said embodiment, although the rice cooker was provided with the control part 100, you may provide the control part 200 shown in FIG. When the control unit 200 rotates the rotating body 11 that is stationary with respect to the lid body 2 and the inner pot 7, of the rotation of the rotating body 11 and the rotation of the first and second stirring arms 12 </ b> A and 12 </ b> B. A rapid acceleration control unit 200a for controlling the drive motor 24 is provided so that the rotating shaft 15 rotates at a rapid acceleration to the extent that the first and second stirring arms 12A and 12B rotate. Accordingly, a large driving force can be applied to the first and second stirring arm umbrella gears 30, the first stirring arm umbrella gears 31A, 32A, and 33A and the second stirring arm umbrella gears 31B, 32B, and 33B. Therefore, the first and second stirring arms 12A and 12B can be rotated more reliably. The rapid acceleration control unit 200a is an example of rapid acceleration control means.

  In the said embodiment, although the rice cooker was provided with the control part 100, you may provide the control part 300 shown in FIG. When the control unit 300 rotates the rotating body 11 that is stationary with respect to the lid body 2 or the inner pot 7, after the rotating shaft 15 rotates forward, the rotation of the rotating shaft 15 suddenly reverses to reverse rotation. In addition, a sudden inversion control unit 300a for controlling the drive motor 24 is provided. Thereby, rapid acceleration is obtained using the reaction force of the torque during forward rotation. As a result, a large driving force can be applied to the first and second stirring arm umbrella gears 30, the first stirring arm umbrella gears 31A, 32A, and 33A and the second stirring arm umbrella gears 31B, 32B, and 33B. Therefore, the first and second stirring arms 12A and 12B can be rotated more reliably. Note that the sudden inversion control unit 300a is an example of the sudden inversion control means.

  In the above embodiment, for example, as shown in FIG. 9, a side-view L-shaped rotation stopper 81 that can move in the vertical direction in the figure so as to protrude from the inner lid 22 to the rotating body 11 side is attached to the lid body 2. It may be attached. More specifically, when rotating the rotating body 11 that is stationary with respect to the lid 2 or the inner pot 7, the rotation stopper 81 is moved to the position of the two-dot chain line in FIG. Thus, the rotating body 11 may not be rotated until the rotation of the first and second stirring arms 12A and 12B is completed.

  Alternatively, instead of the rotation stopper 81, as shown in FIG. 10, a rod-shaped member 181 that can move similarly to the rotation stopper 81 may be attached to the lid 2. If this rod-shaped member 181 is protruded from the inner lid 22 to the inner pot 7 side, the rod-shaped member 181 comes into engagement with the slide lock portion 40 and the rotating body 11 cannot be rotated. Therefore, until the rotation of the first and second stirring arms 12A and 12B is completed, the rotation of the rotating body 11 is blocked by the rod-shaped member 181 and the first and second stirring arms 12A and 12B are reliably rotated. Can be made. Further, by moving the rod-shaped member 181 to the side opposite to the inner pot 7 side, the engagement of the rod-shaped member 181 with the slide lock portion 40 is released, and the rotating body 11 can be rotated.

  The rotation stopper 81 and the rod-shaped member 181 can be moved by, for example, a plunger or a link mechanism. Moreover, the rotation stopper 81 and the rod-shaped member 181 are examples of a restricting portion.

  Further, when the rotation stopper 81 or the rod-shaped member 181 is used, the rotating body 11 has, for example, a resin-made first and second stirring arm rotation shaft mounted on the end portion and wider than the narrow width portion 11a. The wide portions 11b and 11c that are formed may not be provided at the ends.

  Although the said embodiment demonstrated the example which applied this invention to the rice cooker, you may apply this invention also to heating cookers, such as a range and a microwave oven.

DESCRIPTION OF SYMBOLS 1 ... Rice cooker main body 2 ... Cover body 7 ... Inner pan 10 ... Induction heating coil 11 ... Rotating body 12A ... 1st stirring arm 12B ... 2nd stirring arm 24 ... Drive motor 30 ... 1st, 2nd stirring arm umbrella gear 31A, 32A, 33A ... first agitation arm bevel gear 31B, 32B, 33B ... second agitation arm bevel gear 81 ... rotation stopper 100, 200, 300 ... control unit 200a ... rapid acceleration control unit 300a ... rapid reverse control unit

Claims (4)

An accommodating portion for accommodating an object to be heated;
A rotating body provided on the housing part;
A stirrer that is rotatably attached to the rotating body and stirs the object to be heated in the housing;
A drive unit for rotating the rotating body;
A control unit for controlling the driving unit;
A plurality of gears mounted on the rotating body and transmitting the driving force of the driving unit to the stirring body to rotate the stirring body;
The moment of inertia of the rotating body is such that when the rotating body that is stationary with respect to the housing portion is rotated, at least rotation of the stirring body occurs between rotation of the rotating body and rotation of the stirring body. A cooking device characterized by being large to the extent. The heating cooker according to claim 1, wherein
When the control unit rotates the rotating body that is stationary with respect to the housing unit, at least the stirrer rotation of the rotation of the rotation body and the rotation of the stirring body is abrupt. A heating cooker characterized by comprising rapid acceleration control means for controlling the drive unit so that acceleration occurs. The heating cooker according to claim 1 or 2,
When the rotating part that is stationary with respect to the housing part is rotated, the control part includes a sudden reversing control unit that controls the driving part so as to suddenly reversely rotate in the reverse direction after the forward rotation has occurred. A heating cooker characterized by comprising: In the heating cooker according to any one of claims 1 to 3,
A heating cooker comprising a restricting portion capable of restricting rotation of the rotating body.

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