JP5032693B2 - rice cooker - Google Patents

Description

  The present invention relates to rice cookers for home use and business use, for example.

  Conventionally, as a rice cooker, there exists what was disclosed by Unexamined-Japanese-Patent No. 2008-278924 (patent document 1). This rice cooker is pivotally attached to the inner pot for storing the rice to be heated, the rice cooker body in which the inner pot is stored, and the upper portion of the rice cooker body, and opens and closes the opening of the inner pot. And a lid.

  An upper end portion of a stirring body having a substantially cross-sectional shape is rotatably attached to a surface (a surface facing the inner surface of the inner pot) which is a lower surface when the lid is closed. This stirring body is located from the upper end of the inner space of the inner pot to the vicinity of the lower end of the inner space of the inner pot when the lid is closed.

  A rotation drive device is installed in the lid body, and the rotation body is rotated by the rotation drive device to loosen the rice in the inner pot.

  However, in the conventional rice cooker, when the lid is closed, the stirring body extends from the upper end of the inner space of the inner pot to the vicinity of the lower end of the inner space of the inner pot, and the upper end of the stirring body is attached to the inner surface of the lid. Therefore, even if it is going to open a cover, there exists a problem that the lower end part of a stirring body is caught in an inner pot, and a cover cannot be opened.

JP 2008-278924 A (FIG. 1)

  Then, the subject of this invention is providing the rice cooker which can prevent that a stirring body inhibits opening of a cover body.

In order to solve the above problems, the rice cooker of the present invention is
An inner pot for storing the object to be heated;
A rice cooker body in which the inner pot is stored;
A heating unit attached to the rice cooker body and for heating the object to be heated,
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 arranged between the rice cooker body and the lid;
And 攪拌体attached to the rotating body,
A driving mechanism that has one driving unit that generates a driving force and rotates the rotating body with the driving force of the driving unit;
The 攪拌体is movable to the object to be heated accommodated in the inside the pot and 攪拌possible positions, in a position deviated from the object to be heated,
The stirrer has a first end rotatably attached to the rotating body, and a second end located on the opposite side of the first end separates from the rotating body, or the rotating body It is possible to get closer to
The driving unit generates a driving force for rotating the rotating body in the first direction, whereby the second end of the stirring body is separated from the rotating body, while the driving unit moves the rotating body to the By generating a driving force for rotating in a second direction opposite to the first direction, the second end portion of the stirring body approaches the rotating body .

According to the above configuration, the 攪拌体includes 攪拌possible positions of the object to be heated housed in the inner bowl, since movable in a position deviated from the object to be heated, the lid during opening, it moves the 攪拌体at a position deviated from the heated object, it is possible to make a portion of the stirring body is not caught in the inner pot. Therefore, it can prevent that the said stirring body inhibits opening of a cover body.

In addition , the driving unit generates a driving force for rotating the rotating body in the first direction, whereby the second end of the stirring body is separated from the rotating body, while the driving unit defines the rotating body in the first direction. By generating a driving force for rotating in the opposite second direction, the second end of the stirrer approaches the rotating body. Therefore, when the lid is opened, the second end of the stirrer is used as the rotating body. The second end of the stirrer can be prevented from being caught by the inner pot. Therefore, it can prevent that the said stirring body inhibits opening of a cover body.

  Furthermore, since the drive mechanism applies the driving force of the drive unit to the rotator, the second end of the agitator moves away from or approaches the rotator, so the second end is away from the rotator. The rotating body can be rotated together with the stirrer in a separated state, and the heated object in the inner pot can be stirred with the stirrer.

  In addition, the second end portion can be rotated from the rotating body or rotated by the driving force of one driving unit of the driving mechanism, and the rotating body can be rotated. The device can be downsized.

  Temporarily, while providing the drive part which rotates the stirring body in which the said 2nd end part leaves | separates from a rotary body or approaches a rotary body, the drive part which rotates a rotary body is provided separately from this drive part If it becomes, the space which arrange | positions two drive parts will be needed, and a rice cooker will enlarge.

  Moreover, since the 1st end part of the stirring body is rotatably attached to the said rotary body, the attitude | position of a stirring body can be changed greatly. Therefore, it is possible to make the agitator surely take a posture that does not hinder the opening of the lid.

In 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 attached to the rice cooker body and for heating the object to be heated,
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 arranged between the rice cooker body and the lid;
A stirring body attached to the rotating body;
A driving mechanism that has one driving unit that generates a driving force and rotates the rotating body with the driving force of the driving unit;
With
The stirrer is movable to a position where the object to be heated contained in the inner pot can be stirred and a position deviated from the object to be heated.
The operation of the drive mechanism for rotationally driving the rotating body in one direction changes the posture of the stirring body with respect to the rotation surface of the rotating body, and further, the operation of the driving mechanism is continued, whereby the stirring It is characterized in that a body can be locked to the rotating body and rotate together with the rotating body.

According to the above configuration, the stirring body can be moved to a position where the object to be heated contained in the inner pot can be stirred and a position deviated from the object to be heated. The stirrer can be moved to a position deviated from the object to be heated so that a part of the stirrer is not caught on the inner pot. Therefore, it can prevent that the said stirring body inhibits opening of a cover body.
Further , since the posture of the stirring body with respect to the rotating surface of the rotating body can be changed by the operation of the driving mechanism for driving the rotating body to rotate in one direction, the posture that does not hinder the opening of the lid body is set. Can be easily taken.

In the rice cooker of one embodiment,
At least a part of the 攪拌体was receivable in the rotating body.

According to the above embodiment, by accommodating the rotating body at least part of the 攪拌体, in such case that houses the Uchinabe the rice cooker main body, it can be made to the stirrer out of the way.

In the rice cooker of one embodiment,
The rotating body is rotatably attached to the inner pot side of the lid body.

  According to the above embodiment, when the rotating body is rotatably attached to the inner pot side of the lid body, the rotating body moves together with the lid body when the lid body is opened. Therefore, when the object to be heated is taken out from the inner pot or the object to be heated is put into the inner pot, the rotating body should not be positioned in the region through which the object to be heated passes. be able to. Therefore, it is possible to prevent the rotating body from interfering with taking in and out the object to be heated.

In the rice cooker of one embodiment,
The stirrer can take a standing state and a lying state with respect to the rotating surface of the rotating body.

  According to the embodiment, the stirrer can be brought into contact from one end portion to the other end portion of the object to be heated by the standing state of the stirrer with respect to the rotation surface of the rotating body. Therefore, the to-be-heated object can be stirred with high efficiency by rotating the stirrer that is in contact with the rotating object from one end to the other end of the to-be-heated object.

  On the other hand, the stirrer can be prevented from coming into contact with the object to be heated by taking the lying state with respect to the rotating surface of the rotating body. Therefore, even if the stirring body rotates together with the rotating body, the object to be heated can be prevented from being stirred by the stirring body.

In the rice cooker of one embodiment,
The first stirring body and the second stirring body are provided.

  According to the said embodiment, since the said 1st, 2nd stirring body is provided, the to-be-heated material in an inner pot can be moved moderately with the 1st, 2nd stirring body. Therefore, stirring of the object to be heated can be sufficiently performed with low vibration.

In the rice cooker of one embodiment,
The first and second stirring bodies are locked to the rotating body in a state where the distance between the first stirring body and the second stirring body becomes narrower as the distance from the rotating body increases. Rotates with the body.

  According to the embodiment, when the distance between the first stirrer and the second stirrer becomes narrower as the distance from the rotating body increases, the first and first portions are arranged at the center portion and the peripheral portion of the heated portion. 2 stirring bodies can be brought into contact. Therefore, the first and second stirring bodies are locked to the rotating body and rotate together with the rotating body in a state where the distance between the first stirring body and the second stirring body becomes narrower as the distance from the rotating body increases. Therefore, the object to be heated can be stirred more uniformly.

In the rice cooker of one embodiment,
When the first and second stirring bodies are locked to the rotating body and rotate together with the rotating body, the angle formed by the first stirring body with respect to the rotating surface of the rotating body is such that the angle of the rotating body is It is different from the angle formed by the second stirring body with respect to the rotating surface.

  Here, the “rotation surface of the rotator” refers to a surface perpendicular to the rotation axis of the rotator.

  According to the embodiment, when the first and second stirring bodies are locked to the rotating body and rotate together with the rotating body, the angle formed by the first stirring body with respect to the rotating surface of the rotating body is the rotation Since it differs from the angle which a 2nd stirring body makes with respect to the rotation surface of a body, the part which a 1st, 2nd stirring body contacts in a to-be-heated material can be increased. Therefore, the uniformity of stirring of the object to be heated can be improved.

In the rice cooker of one embodiment,
The rotating body has a plurality of gears for rotating the first and second stirring bodies,
When the rotary body is viewed from a direction perpendicular to the rotation surface of the rotary body, the first and second stirring bodies are located on the sides of the plurality of gears.

  According to the above embodiment, when the rotating body is viewed from a direction perpendicular to the rotating surface of the rotating body, the first and second stirring bodies are located on the sides of the plurality of gears. The thickness of the structure having the rotating body and the first and second stirring bodies can be made thinner than when the first and second stirring bodies overlap the plurality of gears in the direction of the rotation axis.

In the rice cooker of one embodiment,
When the rotating body is viewed from a direction perpendicular to the rotation surface of the rotating body, the plurality of gears are positioned so that the plurality of gears are positioned between the first stirring body and the second stirring body. First and second stirring bodies are provided.

  According to the embodiment, when the rotating body is viewed from a direction perpendicular to the rotation surface of the rotating body, a plurality of gears are positioned between the first stirring body and the second stirring body. By providing the first and second stirring bodies, the rotation of the rotating body can be stabilized. Therefore, vibration of the rotating body can be reduced when the rotating body rotates.

In order to solve the above problems, the rice cooker of the present invention is
An inner pot for storing the object to be heated;
A rice cooker body in which the inner pot is stored;
A heating unit disposed in the rice cooker body for heating the heated object;
A lid that can be freely opened and closed at the top of the rice cooker body, and can be closed to cover the inner pot,
A rotating body rotatably disposed between the rice cooker body and the lid;
A stirrer for stirring the object to be heated in the inner pot;
A drive mechanism for rotating the rotating body,
The operation of the drive mechanism for rotationally driving the rotating body in one direction changes the posture of the stirring body with respect to the rotation surface of the rotating body, and further, the operation of the driving mechanism is continued, whereby the stirring It is characterized in that a body can be locked to the rotating body and rotate together with the rotating body.

  According to the above configuration, the posture of the stirring body with respect to the rotating surface of the rotating body can be changed by the operation of the driving mechanism for rotating the rotating body in one direction, so that the opening of the lid is not hindered. The posture can be taken by the stirring body. Therefore, it is possible to avoid a situation in which a part of the stirring body is caught on the inner pot and the lid cannot be opened. That is, it can prevent that the said stirring body inhibits opening of a cover body.

  Furthermore, since the stirring mechanism can be locked to the rotating body and rotate together with the rotating body by continuing the operation of the drive mechanism, the stirring body can be rotated together with the rotating body to rotate the stirring body in the inner pot. The heated product can be stirred with a stirring body.

  Moreover, since the said drive mechanism serves as the drive mechanism for changing the attitude | position of a stirring body, and the drive mechanism for stirring a to-be-heated material, a rice cooker can be reduced in size.

  If a drive mechanism for changing the posture of the stirring body and a drive mechanism for stirring the object to be heated are provided separately, a space for arranging the two drive mechanisms is required, and the rice cooker Will become larger.

In the rice cooker of one embodiment,
The rotating body is rotatably attached to the inner pot side of the lid body,
One end of the stirring body is rotatably attached to the rotating body.

  According to the embodiment, when the rotating body is rotatably attached to the inner pot side of the lid body, the rotating body moves together with the lid body when the lid body is opened. Therefore, when the object to be heated is taken out from the inner pot or the object to be heated is put into the inner pot, the rotating body should not be positioned in the region through which the object to be heated passes. be able to. Therefore, it is possible to prevent the rotating body from interfering with taking in and out the object to be heated.

  Moreover, the attitude | position of a stirring body can be changed greatly by attaching the one end part of a stirring body to the said rotary body so that rotation is possible. Therefore, it is possible to make the agitator surely take a posture that does not hinder the opening of the lid.

In the rice cooker of one embodiment,
The stirrer can take a standing state and a lying state with respect to the rotating surface of the rotating body.

  According to the embodiment, the stirrer can be brought into contact from one end portion to the other end portion of the object to be heated by the standing state of the stirrer with respect to the rotation surface of the rotating body. Therefore, the to-be-heated object can be stirred with high efficiency by rotating the stirrer that is in contact with the rotating body from one end to the other end.

  On the other hand, the stirrer can be prevented from coming into contact with the object to be heated by taking the lying state with respect to the rotating surface of the rotating body. Therefore, even if the stirring body rotates together with the rotating body, the object to be heated can be prevented from being stirred by the stirring body.

In the rice cooker of one embodiment,
When the stirring body is in the above-described lying state, at least a part of the stirring body protrudes from the rotating body.

  According to the above embodiment, when the stirrer is in the lying state, at least a part of the stirrer protrudes from the rotating body. You can physically destroy the sticky bubbles. As a result, it is possible to suppress the spilling of the above-mentioned viscous without reducing the output of the heating unit and to keep the temperature of the rice at a high temperature, so that the alpha conversion of the rice can be surely promoted.

In the rice cooker of one embodiment,
The drive mechanism is
A driving unit for generating a driving force;
A first bevel gear that rotates in response to the driving force generated by the driving unit;
A second bevel gear meshing with the first bevel gear;
A third bevel gear disposed on the opposite side of the second bevel gear from the first bevel gear and rotating with the rotation of the second bevel gear;
A fourth bevel gear provided on the end side of the agitator and meshing with the third bevel gear;

  According to the above-described embodiment, the drive mechanism includes the drive unit, the first bevel gear, the second bevel gear, the third bevel gear, and the fourth bevel gear, thereby preventing the drive mechanism from being complicated and enlarged. it can.

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

  According to the above-described embodiment, when cooking rice, the sticky spills 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.

  In this way, it is possible to forcibly return the mucilage going out of the inner pot to the inner pot by centrifugal force, so that the alpha conversion of rice is promoted and a delicious rice with a lot of umami ingredients is obtained. It is done.

  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 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 1 step part is provided in the surface by the side of the inner pot of the said rotary body, stickiness can be returned in the inner pot from the step part. 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.

In the rice cooker of one embodiment,
The stirring body is a rotating arm whose one end is pivotally supported by the rotating body,
The rotating body includes a first locked portion where the one end portion of the rotating arm is locked and a second locked portion where the other end portion of the rotating arm is locked.

  According to the embodiment, the rotating body includes a first locked portion where one end of the rotating arm is locked, and a second locked portion where the other end of the rotating arm is locked. Therefore, it is possible to reliably rotate the rotating arm in the lying state and the standing state together with the stirring body.

In the rice cooker of one embodiment,
There is one rotating arm.

  According to the embodiment, the amount of movement of the heated object can be increased by rotating the single rotating arm that contacts the heated object together with the rotating body. Therefore, the heated portion can be sufficiently agitated by the single rotation arm.

  For example, when the object to be heated is stirred with two rotating arms, the amount of movement of the object to be heated is smaller than when the object to be heated is stirred with one rotating arm.

According to cooker of the present invention, by 攪拌体it is that the 攪拌possible positions of the object to be heated housed in the inner bowl, and is movable to a position deviated from the object to be heated, during opening of the lid, inhibiting the release of moving the 攪拌体at a position deviated from the heated object, it is possible to make a portion of the stirring body is not caught in the inner bowl, the stirring member is a lid member Can be prevented.

FIG. 1 is a schematic sectional view of a rice cooker according to a first embodiment of the present invention. FIG. 2 is a schematic perspective view of the first and second transmission shafts and the rotating arm of the rice cooker. 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 cross section of the rice cooker of 2nd Embodiment of this invention. FIG. 12 is a schematic view of the rotating body of the rice cooker as seen from the axial direction. 13 is a schematic cross-sectional view taken along line XIII-XIII in FIG. FIG. 14 is another schematic view of the rotating body viewed from the axial direction. FIG. 15 is a schematic perspective view of the rotating body.

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

[First Embodiment]
Drawing 1 is a schematic diagram of the section which cut the rice cooker of a 1st embodiment of the present invention with the vertical plane.

  The rice cooker is attached to the top of the rice cooker body 1, the inner pot 2 accommodated in the rice cooker body 1, and the upper portion of the rice cooker body 1 so as to be openable and closable, and is closed so as to cover the inner pot 2. A lid 3, an induction coil 4 for induction heating the inner pot 2, a temperature sensor 5 for detecting the temperature of the inner pot 2, and one The substantially rod-shaped rotation arm 6 is provided. The induction coil 4 is an example of the heating unit of the present invention, and the rotating arm 6 is an example of the stirring member of the present invention.

  The rice cooker body 1 has an outer case 10 and an inner case (not shown) arranged 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 3 includes an outer lid 7 that is pivotally supported by the rice cooker body 1, and an inner lid 8 that is detachably attached to the inner pan 2 side of the outer lid 7. It has. Further, a substantially disc-shaped rotating body 9 is attached to the inner lid 8 side of the inner lid 8 so as to be rotatable, that is, detachable.

  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 motor 11 is an example of a drive unit of the present invention.

  The driving side coupling 15 is rotatably accommodated in a recess 3 a 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 this 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 turning 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 rotating 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, a control unit 22 that controls induction heating by the induction coil 4 and rotational driving force by the motor 11 is disposed in the space between the outer case 10 and the inner case.

  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 frame bodies 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 first miter gear 24 is an example of the first bevel gear 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 examples of a part of the drive mechanism of the present invention. The second to fourth miter gears 25 to 27 are examples of the second to fourth bevel gears of the present invention.

  The central portion of the rotation shaft 28 is detachably fitted into a notch 6 a provided at one end of the rotation 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 when viewed 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.

  In addition, 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. 5 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.

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

  3, the first miter gear 24 is rotated in the direction of the arrow R by the rotational power of the motor 11, thereby rotating the rotating arm 6 to the inverted state as shown in FIG. Can do. 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.

  Further, although there is one motor 11, the single 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.

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

  Moreover, since the spilling of the above-mentioned stickiness can be suppressed, rice cooking can be performed at a high heating power to shorten the rice cooking time.

  Moreover, since the said rotation arm 6 is one, movement of rice etc. by rotation of the one rotation arm 6 is large, and can fully stir rice.

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

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

  In the first embodiment, the rotating arm 6 and the rotating body 9 are rotated by the first miter gear 24 to the fourth miter gear 27 and the like. If the rotation arm 6 and the rotating body 9 can be operated, the rotation arm 6 can be moved by a gear other than the first miter gear 24 to the fourth miter gear 27 or another power transmission mechanism. You may make it rotate or the rotary body 9 may rotate.

  In the said 1st Embodiment, although one part of the rotation arm 6 of the fall state protruded from the surface by the side of the inner pot 2 of the rotary body 9, it is a fallen state from the surface by the side of the inner pot 2 of the rotary body 9 All of the rotating arms 6 may be protruded.

  In the first embodiment, three umbrella-shaped tapered surfaces are formed on the surface of the rotating body 9 on the inner pot 2 side. However, one, two, four or more umbrella-shaped tapered surfaces are formed. May be. 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 first 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, but one or three or more annular portions are formed. The step portion may be formed.

  In the first embodiment, the substantially rod-shaped rotation arm 6 is used. However, a rotation arm having a shape other than a substantially rod shape (for example, a substantially L-shaped side view) may be used.

  In the first embodiment, a substantially blade-shaped stirrer may be used instead of the substantially rod-shaped rotating arm 6.

  In the first embodiment, a plurality of rotation arms similar to the rotation arm 6 may be used.

  In the said 1st Embodiment, although the inner pot 2 was induction-heated, you may make it carry out resistance heating of the inner pot 2, 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.

[Second Embodiment]
FIG. 11: is a schematic cross section for demonstrating the structure of the rice cooker of 2nd Embodiment of this invention.

  The rice cooker is attached to the top of the rice cooker body 101, the inner pot 102 accommodated in the rice cooker body 101, and the upper portion of the rice cooker body 101, and can be closed to cover the inner pot 102. A lid 103, a rotating body 104 rotatably disposed between the rice cooker body 101 and the lid 103, and two substantially rod-shaped first and second attached to the rotating body 104 so that the posture can be changed. Second stirring members 105 and 106 are provided. The first and second stirring members 105 and 106 are examples of the stirring body of the present invention. Moreover, the 1st stirring member 105 is an example of the 1st stirring body of this invention, and the 2nd stirring member 106 is an example of the 2nd stirring body of this invention.

  The rice cooker main body 101 includes an outer case 107 and an inner case 108 disposed in the outer case 107. Further, when the inner pot 102 is stored in the rice cooker body 101, the inner case 108 holds the inner pot 102. The inner case 108 is formed of a material having heat resistance and electrical insulation. Further, an IH (induction heating) heater 109 having an induction coil and a temperature sensor 110 that detects the temperature of the inner pot 102 are attached to the bottom of the inner case 108. The IH heater 109 is an example of the heating unit of the present invention.

  The inner pot 102 is formed of a clad material containing a magnetic material. For example, rice 150 and water 151 enter the inner pot 102. In addition, an annular flange portion 102 a is provided on the edge of the opening at the upper end of the inner pot 102. Rice 150 and water 151 are examples of the object to be heated of the present invention.

  The lid 103 is detachably attached to the outer lid 112 whose rear end portion is pivotally attached to the rear portion of the rice cooker body 101 by the pivot mechanism 111 and to the inner pan 102 side of the outer lid 112. And an inner lid 113. A rotating body 104 is rotatably attached to the inner lid 113.

  One rotating stirring DC (direct current) brushless motor 115 is attached to the outer lid 112 so as to be positioned in the vicinity of the rotating mechanism 111. More specifically, the rotary stirring DC brushless motor 115 and the timing belt 116 are accommodated in the outer lid 112. The timing belt 116 is wound around a part of the outer periphery of the small pulley 117 attached to the drive shaft 115 a of the DC brushless motor 115 for rotary stirring and a part of the outer periphery of the large pulley 118 attached to the input shaft 119. Has been. Thereby, the driving force of the rotary stirring DC brushless motor 115 is transmitted to the input shaft 119 of the rotating body 104 via the timing belt 116. The rotary stirring DC brushless motor 115, the small pulley 117, the timing belt 116, and the large pulley 118 are an example of a part of the drive mechanism of the present invention. Moreover, the DC brushless motor 115 for rotation stirring is an example of the drive part of this invention.

  The first and second stirring members 105 and 106 are made of heat-resistant resin (for example, POM (polyacetal) or fluorine-based resin) and are formed separately from each other. The first and second agitating members 105 and 106 have first end portions 105a and 106a and second end portions 105b and 106b located on the opposite side of the first end portions 105a and 106a. ing. The first end portions 105a and 106a of the first and second stirring members 105 and 106 are rotatably attached to the rotating body 104. Further, the DC brushless motor 115 for rotary stirring generates a driving force for rotating the rotating body 104 in the first direction (the direction corresponding to the arrow R direction in FIG. 15), whereby the first and second stirring members The second end portions 105 b and 106 b of the 105 and 106 are separated from the rotating body 104 and are in an upright state with respect to the rotating surface of the rotating body 104. On the other hand, the DC brushless motor 115 for rotating agitation generates a driving force for rotating the rotating body 104 in the second direction (the direction corresponding to the arrow L direction in FIG. 15), whereby the first and second agitating members are generated. The second end portions 105 b and 106 b come close to the rotating body 104, and 105 and 106 are in a lying state with respect to the rotating surface of the rotating body 104. That is, when the DC brushless motor 115 for rotating agitation generates a driving force for rotating the rotating body 104 in the first direction and the second direction, the first and second agitating members 105 and 106 are moved in the direction of arrow D. , Rotate in the direction of arrow U.

  Further, in the space between the outer case 107 and the inner case 108, a control device (not shown) for controlling the heater 109, the DC brushless motor 115 for rotary stirring and the like is installed.

  FIG. 12 is a schematic view of the rotating body 104 as viewed from the direction perpendicular to the rotating surface of the rotating body 104 on the inner pot 102 side (the side opposite to the inner lid 113 side). FIG. 13 is a schematic cross-sectional view taken along line XIII-XIII in FIG. In FIG. 13, illustration of a part of the components of the rotating body 104 is omitted.

  As shown in FIG. 12, the rotating body 104 has a container-shaped rotating body main body 120. A first miter gear mounting portion 121 having a shape that bulges toward the inner pot 102 is provided at the center of the surface of the rotating body 120 on the inner pot 102 side. The first miter gear mounting portion 121 has a plurality of drain holes 125 for returning water that has entered between the first miter gear mounting portion 121 and the gear cover 124 (see FIG. 14) into the inner pot 102. is doing. The drain hole 125 has a substantially rectangular shape when viewed from the inner pot 102 side, and extends from the surface on the inner pot 102 side of the first miter gear mounting portion 121 to the outer surface in the radial direction. Thereby, as for the drain hole 125, about half is opened toward the inner pot 102 side, and the remainder is opened toward the radial direction outer side.

  In addition, the peripheral portion of the surface of the rotating body 120 on the inner pot 102 side is located on one side of the first miter gear mounting portion 121 and has a shape that bulges toward the inner pot 102 side. There is provided a miter gear mounting portion 122 and a third miter gear mounting portion 123 that is located on the other side of the first miter gear mounting portion 121 and bulges toward the inner pot 102 side. The water that has entered between the second and third miter gear mounting portions 122 and 123 and the gear cover 124 is applied to the non-curved surfaces on the radially outer sides of the second and third miter gear mounting portions 122 and 123. A drain hole 126 for returning to the inner pot 102 is provided. In addition, water that has entered between the second and third miter gear mounting portions 122 and 123 and the gear cover 124 is also applied to the curved outer surfaces in the radial direction of the second and third miter gear mounting portions 122 and 123. A drain hole 127 for returning to the inner pot 102 is provided. Thereby, almost all of the drain holes 127 are opened outward in the radial direction. In addition, the shape which looked at the drain hole 127 from the inner pot 102 side is a substantially rectangular shape.

  The rotating body 120 is provided with first and second accommodation holes 128 and 129 for accommodating the first and second stirring members 105 and 106. The first accommodation hole 128 is located on one side of the first miter gear mounting portion 121, the second miter gear mounting portion 122, and the third miter gear mounting portion 123, while the second accommodation hole 129. Is located on the other side of the first miter gear mounting portion 121, the second miter gear mounting portion 122, and the third miter gear mounting portion 123. When the rice 150 and water 151 in the inner pot 102 are not stirred by the first and second stirring members 105 and 106, the first and second stirring members 105 and 106 are placed in the first and second accommodation holes 128 and 129. To accommodate. When the first and second stirring members 105 and 106 are accommodated in the first and second accommodation holes 128 and 129, the first and second stirring members 105 and 106 become the first and second accommodation holes 128. , 129 and the first surfaces 191 and 194 which are partial surfaces of the first and second stirring members 105 and 106 are exposed to the inner pot 102 side. At this time, the first surfaces 191 and 194 are substantially parallel to the rotation surface of the rotating body 104.

  As shown in FIG. 13, the first and second stirring members 105 and 106 have a substantially triangular cross section, and the width becomes narrower from the lower side to the upper side in the drawing. More specifically, the first and second stirring members 105 and 106 have first surfaces 191 and 194, second surfaces 192 and 195, and third surfaces 193 and 196. In the state where the first and second stirring members 105 and 106 are accommodated in the first and second accommodation holes 128 and 129, the first surfaces 191 and 194 are in contact with the rotation surface of the rotating body 104. The second surfaces 192 and 195 are substantially perpendicular to the rotation surface of the rotating body 104, and the third surfaces 193 and 196 are inclined with respect to the rotation surface of the rotating body 104. In other words, when the first and second stirring members 105 and 106 do not stir the rice 150 or the water 151 in the inner pot 102, the first surfaces 191 and 194 are relative to the rotation axis of the rotating body 104. The second surfaces 192 and 195 are substantially parallel to the rotation axis of the rotating body 104, and the third surfaces 193 and 196 are inclined with respect to the rotation axis of the rotating body 104.

  Further, the surface of the rotary body 120 on the inner pot 102 side includes a plurality of umbrella-shaped tapered surfaces as shown in FIGS. More specifically, a plurality of first inclined surfaces 134 and a second inclined surface 135 positioned radially outward from the first inclined surface 134 are provided on the surface of the rotating body 104 on the inner pan 102 side. Forming. The first and second inclined surfaces 134 and 135 are surfaces formed such that, when the lid 103 is closed, the edge on the radially outer side is lower than the edge on the radially inner side. The edge on the radially outer side of the first inclined surface 134 is connected to the edge on the radially outer side of the second inclined surface 135 via a step 136. In addition, a plurality of drain holes 137 having a substantially arc shape when viewed from the inner pot 102 side are provided on the radially outer edges of the first and second inclined surfaces 134 and 135. Thereby, the water that has entered between the inner lid 113 and the rotating body main body 120 can be returned into the inner pot 102.

  FIG. 14 is a schematic view of the rotating body 104 as viewed from the direction perpendicular to the rotating surface of the rotating body 104 on the inner lid 113 side. FIG. 15 shows a state in which the inner lid 113 side of the rotating body 104 from which the input shaft 119, the gear cover 124, and the bearing portion 138 (see FIGS. 11 and 14) are removed is inclined with respect to the rotating surface of the rotating body 104. FIG.

  As shown in FIGS. 14 and 15, the rotating body 104 includes an input shaft 119, a gear cover 124, a bearing portion 138, a first miter gear 139, a second miter gear 140, in addition to the rotating body main body 120. Third miter gear 141, fourth miter gear 142, fifth miter gear 143, sixth miter gear 144, seventh miter gear 145, first transmission shaft 146, first rotation shaft 147, A second transmission shaft 148 and a second rotation shaft 149 are provided. The third miter gear 141, the first transmission shaft 146, the second miter gear 140, the first miter gear 139, the fifth miter gear 143, the second transmission shaft 148 and the second miter gear 140 are The rotor body 120 is arranged in a substantially straight line along the radial direction. In addition, the first stirring member 105 and the second stirring member 106 are arranged substantially symmetrically with respect to the plane including the central axes of the first transmission shaft 146, the input shaft 119, and the second transmission shaft 148. ing. Further, when the position at which the first rotation shaft 147 is connected to the first stirring member 105 is rotated by 180 ° around the input shaft 119, the second rotation shaft 149 is moved to the second stirring member 106. It almost coincides with the position connected to. In other words, when the rotation center of the first stirring member 105 is rotated by 180 ° around the rotation axis of the rotating body 104, the rotation center of the second stirring member 106 substantially overlaps. The first miter gear 139, the second miter gear 140, the third miter gear 141, the fourth miter gear 142, the fifth miter gear 143, the sixth miter gear 144, and the seventh miter gear 145 Is an example of a plurality of gears of the present invention.

  The input shaft 119 is provided to be rotatable with respect to the rotating body 120 and the bearing portion 138. A first miter gear 139 is fixed to the end of the input shaft 119 on the rotating body main body 120 side. The bearing portion 138 is detachably fitted in a through hole (not shown) provided in the inner lid 113. When the bearing portion 138 is fitted into this through hole, the end of the input shaft 119 opposite to the rotating body main body 120 side enters between the outer lid 112 and the inner lid 113 and is connected to the small pulley 117. It is supposed to be.

  The first miter gear 139 meshes with the second miter gear 140. The second miter gear 140 is fixed to the radially inner end of the first transmission shaft 146, while the third miter gear 141 is secured to the radially outer end of the first transmission shaft 146. The second miter gear 140, the first transmission shaft 146, and the third miter gear 141 are integrally rotated. Further, the third miter gear 141 is in mesh with the fourth miter gear 142. The fourth miter gear 142 and the first end 105a of the first agitating member 105 are connected by a first rotating shaft 147, and the fourth miter gear 142, the first agitating member 105, and the first agitating member 105 are connected to each other. The rotating shaft 147 is integrated. When the first miter gear 139 rotates in such a state, the first agitating member 105 rotates about the first rotation shaft 147 within a certain range.

  Further, the first miter gear 139 meshes with the fifth miter gear 143. The fifth miter gear 143 is fixed to the radially inner end of the second transmission shaft 148, while the sixth miter gear 144 is secured to the radially outer end of the second transmission shaft 148. The fifth miter gear 143, the first transmission shaft 146, and the sixth miter gear 144 are integrally rotated. Further, the sixth miter gear 144 meshes with the seventh miter gear 145. The seventh miter gear 145 and the first end 106a of the second agitating member 106 are connected by a second rotating shaft 149, and the seventh miter gear 145, the second agitating member 106, and the second agitating member 106 are connected. The rotating shaft 149 is integrated. When the first miter gear 139 rotates in such a state, the second agitating member 106 rotates around the first rotation shaft 147 within a certain range.

  The second and fifth miter gears 140 and 143 are rotatably mounted in first and second recesses 152 and 153 formed in the first miter gear mounting portion 121. The spaces in the first and second recesses 152 and 153 communicate with the space in the inner pot 102 via the drain hole 125 when the lid 103 is closed.

  The third and fourth miter gears 141 and 142 are rotatably mounted in a third recess 154 provided in the second miter gear mounting portion 122. The space in the third recess 154 communicates with the space in the inner pot 102 through the drain holes 126 and 127 when the lid 103 is closed.

  The sixth and seventh miter gears 144 and 145 are rotatably mounted in a fourth recess 155 provided in the third miter gear mounting portion 123. The space in the fourth recess 155 communicates with the space in the inner pot 102 through the drain holes 126 and 127 when the lid 103 is closed.

  The gear cover 124 is in contact with the first and second stirring members 105 and 106 to limit the rotation of the first and second stirring members 105 and 106 in the arrow U direction. , 157. First and second magnets 158 and 159 are attached to the lower surfaces of the first and second stoppers 156 and 157 (surfaces on the first and second stirring members 105 and 106 side). The third and fourth magnets 160 and 161 having magnetic poles opposite to the magnetic poles of the first and second magnets 158 and 159 are connected to the first and second stirring members 105 and 106 by the first and second magnets. The magnets 158 and 159 are attached at locations where they can be contacted. Thereby, even when the DC brushless motor 115 for rotary stirring is not driven, the first and second magnets 158 and 159 and the third and fourth magnets 160 and 161 are attracted by the first and first magnets. The two stirring members 105 and 106 can maintain the state shown in FIGS. The gear cover 124 can be attached to and detached from the rotating body main body 120. By attaching the gear cover 124 to the rotating body 120, the first miter gear 139, the second miter gear 140, the third miter gear 141, the fourth miter gear 142, the fifth miter gear 143, and the sixth The miter gear 144, the seventh miter gear 145, the first transmission shaft 146 and the second transmission shaft 148 can be covered with a gear cover 124. For example, a snap-fit structure is preferably used as the attachment / detachment structure of the gear cover 124.

  On the other hand, the rotation of the first and second stirring members 105 and 106 in the direction of arrow D is limited by a part of the peripheral edge of the first and second accommodation holes 128 and 129. More specifically, when the first and second stirring members 105 and 106 housed in the first and second housing holes 128 and 129 are rotated in the direction of arrow D, the first and second stirring members 105 are moved. The first end portions 105a and 106a of the first and second receiving holes 128 and 129 are located in the vicinity of the first rotation shaft 147 and the second rotation shaft 149 (hereinafter referred to as the first rotation shafts 149 and 106). This is referred to as “a part of the peripheral edge of the first and second accommodation holes 128 and 129”), and the rotation after this contact is limited. When the first end portions 105a and 106a of the first and second stirring members 105 and 106 are in contact with part of the peripheral portions of the first and second accommodation holes 128 and 129, the rotation of the rotating body 104 The angle formed by the first and second stirring members 105 and 106 with respect to the surface is 80 °. In this state, when a driving force for rotating the first and second stirring members 105 and 106 in the direction of arrow D is applied to the input shaft 119, the peripheral edges of the first and second accommodation holes 128 and 129 The first end portions 105 a and 106 a of the first and second stirring members 105 and 106 are locked to a part of the portion, and the first and second stirring members 105 and 106 rotate together with the rotating body 104. That is, the first and second stirring members 105 and 106 are locked to the rotating body 104 in a state in which the distance between the first stirring member 105 and the second stirring member 106 becomes narrower as the distance from the rotating body 104 increases. Thus, it can be rotated together with the rotating body 104.

  When the rotating body 104 is viewed from a direction perpendicular to the rotation surface of the rotating body 104, the first agitating member 105 includes the first miter gear 139, the second miter gear 140, and the third miter. The second stirring member 106 is located on one side of the gear 141, the fourth miter gear 142, the fifth miter gear 143, the sixth miter gear 144, and the seventh miter gear 145, and One miter gear 139, second miter gear 140, third miter gear 141, fourth miter gear 142, fifth miter gear 143, sixth miter gear 144, and seventh miter gear 145 Located on the side. That is, when the rotator 104 is viewed from a direction perpendicular to the rotation surface of the rotator 104, the first miter gear 139 and the second migrating gear between the first agitating member 105 and the second agitating member 106. The miter gear 140, the third miter gear 141, the fourth miter gear 142, the fifth miter gear 143, the sixth miter gear 144, and the seventh miter gear 145 are arranged. The first stirring member 105 is substantially parallel to the second stirring member 106.

  According to the rice cooker having the above-described configuration, after putting a desired amount of rice 150 and water 151 according to the amount of the rice 150 into the inner pot 102, the inner pot 102 is placed in the rice cooker body 101. The lid 103 is closed so as to cover and cover the inner pot 102. At this time, as shown in FIG. 15, the first and second stirring members 105 and 106 are accommodated in the first and second accommodation holes 128 and 129 and are in a lying state. Then, the driving force of the DC brushless motor 115 for rotary stirring is transmitted to the input shaft 119 of the rotating body 104, and the first miter gear 139 is rotated in the direction of arrow R. Thereby, the 1st, 2nd stirring members 105 and 106 rotate in the arrow D direction as shown in FIG. 11 in a state where the rotating body 104 does not rotate. The rotation of the first and second stirring members 105 and 106 in the direction of arrow D is such that the first end portions 105a and 106a of the first and second stirring members 105 and 106 are in the first and second accommodation holes 128. , 129 stops in contact with a part of the peripheral edge. Further, when the driving force of the DC brushless motor 115 for rotary stirring is transmitted to the input shaft 119 of the rotating body 104 and the first miter gear 139 is rotated in the direction of arrow R, the first and second stirring members 105 and 106 are rotated. Rotates together with the rotating body 104. As a result, the rice 150 and the water 151 in the inner pot 102 can be stirred by the first and second stirring members 105 and 106.

  When the lid 103 is opened, the driving force of the rotary stirring DC brushless motor 115 is transmitted to the input shaft 119 of the rotating body 104 to rotate the first miter gear 139 in the direction of arrow L (see FIG. 15). . Accordingly, the first and second stirring members 105 and 106 rotate in the direction of the arrow U and are accommodated in the first and second accommodation holes 128 and 129 in a state where the rotating body 104 does not rotate. At this time, the first and second stoppers 156 and 157 are brought into contact with the first and second stirring members 105 and 106, whereby the first and second stirring members 105 and 106 are rotated in the arrow U direction. Stop. As a result, the second end portions 105b and 106b of the first and second stirring members 105 and 106 are surely not caught on the inner pot 102, and the lid 103 can be easily opened.

  Further, the rotation of the first and second stirring members 105 and 106 in the directions of the arrow D and the arrow U and the rotation of the rotating body 104 are performed by the driving force of one rotating stirring DC brushless motor 115. Yes. Therefore, compared to a case where a motor for rotating the first and second stirring members 105 and 106 in the direction of arrow D and arrow U and a motor for rotating the rotating body 104 are provided separately, The rice cooker can be downsized.

  Moreover, when the said 1st, 2nd stirring members 105 and 106 are accommodated in the 1st, 2nd accommodation holes 128 and 129, when putting the inner pot 102 in and out of the rice cooker main body 101, etc., The second stirring members 105 and 106 can be prevented from getting in the way.

  Further, since the rotating body 104 is attached to the inner lid 113, when the lid body 103 is opened, the rotating body 104 moves together with the lid body 103. Therefore, when the inner pot 102 is put in and out of the rice cooker body 101, the rotating body 104 can be prevented from getting in the way of the inner pot 102.

  In addition, when the first and second stirring members 105 and 106 are raised with respect to the rotating surface of the rotating body 104, the first and second stirring members 105 and 106 become the rice 150 on the rotating body 104 side. Not only the water 151 but also the rice 150 and the water 151 on the bottom side of the inner pot 102 come into contact. Accordingly, by rotating the first and second stirring members 105 and 106 together with the rotating body 104 while standing with respect to the rotating surface of the rotating body 104, the rice 150 and the water 151 on the rotating body 104 side are rotated. While being able to fully stir, the rice 150 and water 151 near the bottom of the inner pot 102 can also be sufficiently stirred.

  On the other hand, when the first and second stirring members 105 and 106 are placed in a lying state with respect to the rotating surface of the rotating body 104, the first and second stirring members 105 and 106 No contact with water 151. Therefore, even if the first and second stirring members 105 and 106 are rotated together with the rotating body 104 while being in a state of being inclined with respect to the rotating surface of the rotating body 104, the rice 150 and the water 151 in the inner pot 102 are in the first state. It is possible to prevent stirring by the first and second stirring members 105 and 106.

  In addition, by stirring the rice 150 and water 151 in the inner pot 102 with the first and second stirring members 105 and 106, the rice 150 and water 151 in the inner pot 102 can be moved appropriately. it can. Therefore, the rice 150 and water 151 can be sufficiently stirred with low vibration.

  Further, when the first and second stirring members 105 and 106 are raised with respect to the rotating surface of the rotating body 104, the distance between the first stirring member 105 and the second stirring member 106 is the rotating body 104. If it becomes narrow as it leaves | separates from 1st, the 2nd stirring members 105 and 106 are not only the rice 150 and the water 151 near the center part in the inner pot 102, but the peripheral part vicinity in the inner pot 102. Also in contact with rice 150 and water 151. Therefore, the first and second stirring members 105 and 106 are raised with respect to the rotation surface of the rotating body 104, and the interval between the first stirring member 105 and the second stirring member 106 is set to the rotating body 104. The rice 150 and water 151 in the vicinity of the center in the inner pot 102 can be sufficiently agitated by rotating together with the rotating body 104 while being narrowed as the distance from the outer periphery is increased. Rice 150 and water 151 in the vicinity of the section can be sufficiently stirred.

  Further, the rotating body 104 in a state where the first and second stirring members 105 and 106 are housed in the first and second housing holes 128 and 129 is viewed from a direction perpendicular to the rotating surface of the rotating body 104. When the first and second stirring members 105 and 106 are viewed, the first miter gear 139, the second miter gear 140, the third miter gear 141, the fourth miter gear 142, and the fifth miter Since they are on the sides of the gear 143, the sixth miter gear 144, and the seventh miter gear 145, they do not overlap with these gears. Therefore, in the above state, the thickness of the structure including the first and second stirring members 105 and 106 and the rotating body 104 can be reduced.

  Further, the rotating body 104 in a state where the first and second stirring members 105 and 106 are housed in the first and second housing holes 128 and 129 is viewed from a direction perpendicular to the rotating surface of the rotating body 104. , The first miter gear 139, the second miter gear 140, the third miter gear 141, and the fourth miter gear 142 are provided between the first stirring member 105 and the second stirring member 106. Since the fifth miter gear 143, the sixth miter gear 144, and the seventh miter gear 145 are positioned, the rotation of the rotating body 104 can be stabilized even if the rotating body 104 is rotated in this state. it can. Therefore, vibration of the rotating body 104 can be reduced when the rotating body 104 in the above state rotates.

  The rotation center of the first stirring member 105 is substantially overlapped with the rotation center of the second stirring member 106 when rotated by 180 ° around the rotation axis of the rotating body 104. Even if the rotating body 104 is rotated in a state where the angle formed by the first and second stirring members 105 and 106 with respect to the rotating surface of the body 104 is 80 °, the rotation of the rotating body 104 can be stabilized. it can.

  Moreover, the rice cooker of this 2nd Embodiment can stabilize the water flow at the time of the stirring of the rice 150 or the water 151 compared with the rice cooker of the said 1st Embodiment, and can reduce a vibration and a water splash largely.

  Moreover, in the rice cooker of this 2nd Embodiment, the stirring effect obtained when the rotation speed of the rotary body 104 is made into about 200 rpm in the rice cooker of 1st Embodiment is obtained at the rotation speed of the rotary body 104 at about 150 rpm. It is done. Therefore, the rice cooker of the second embodiment has an effect of reducing the rotational speed.

  In the second embodiment, the rotating body 104 can be attached to and detached from the lid 103, but may be detachable from the lid 103.

  In the second embodiment, when the first and second stirring members 105 and 106 are locked to the rotating body 104 and rotate together with the rotating body 104, the first and second agitation members 105 and 106 rotate with the rotating body 104. Although the angle formed by the stirring members 105 and 106 is 80 °, it may be 75 ° or 85 °, for example.

  In the second embodiment, when the first and second stirring members 105 and 106 are locked to the rotating body 104 and rotate together with the rotating body 104, the first stirring member 105 with respect to the rotation surface of the rotating body 104. Is the same as the angle formed by the second stirring member 106 with respect to the rotating surface of the rotating body 104, but the angle formed by the first stirring member 105 with respect to the rotating surface of the rotating body 104 is You may make it differ from the angle which the 2nd stirring member 106 comprises with respect to the rotating surface of the rotary body 104. FIG. When it does in this way, the part which the 1st, 2nd stirring members 105 and 106 contact in the rice 150 or the water 151 can be increased.

  In the second embodiment, the first miter gear 139, the second miter gear 140,..., The sixth miter gear 144 are viewed from the direction perpendicular to the rotation surface of the rotating body 104. The first agitating member 105 is disposed on one side of the seventh miter gear 145, and the first miter gear 139, the second miter gear 140,. The second agitating member 106 is disposed on the other side of the seventh miter gear 145, but the first miter gear 139, the second miter gear 140,..., The sixth miter gear 144 and the seventh The first and second stirring members 105 and 106 may be disposed on one side of the miter gear 145.

  In the second embodiment, the first and second stirring members 105 and 106 have a substantially triangular cross section, but may have a substantially trapezoidal cross section. Also in this case, the first and second stirring members 105 and 106 are accommodated in the state where the first and second stirring members 105 and 106 are accommodated in the first and second accommodation holes 128 and 129. It is preferable to make the width narrower with increasing distance from the inner pot 102 side.

  In the second embodiment, the gear cover 124 is provided with the first and second stoppers 156 and 157. However, the gear cover 124 may be provided with first and second stoppers having a notch at the tip. In this case, when the first and second agitating members 105 and 106 are accommodated in the first and second accommodation holes 128 and 129, for example, a hemispherical shape that fits and locks into the notch. Protrusions may be provided on the first and second stirring members 105 and 106.

  In the second embodiment, the gear cover 124 is provided with the first and second stoppers 156 and 157. However, for example, first and second stoppers having hemispherical protrusions may be provided at the tip. . In this case, when the first and second agitating members 105 and 106 are accommodated in the first and second accommodation holes 128 and 129, the notches to which the protrusions are fitted and locked are provided as the first and second agitation members 105 and 106, respectively. You may provide in the 1st, 2nd stirring member 105,106.

  In the second embodiment, the rotator 104 and the gear cover 124 may be made of metal, or may be made of heat-resistant resin like the first and second stirring members 105 and 106. There may be.

  In the second embodiment, when the first and second stirring members 105 and 106 are housed in the first and second housing holes 128 and 129, the first and second stirring members 105 and 106 are rotated by the rotating body 104. However, a part of the first and second stirring members 105 and 106 may protrude from the rotating body 104. That is, in the second embodiment, a stirring body that can accommodate at least a part in the rotating body 104 may be used.

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, agitation of the present invention, a possible position 攪拌an object to be heated housed in the inner bowl, moving if possible, whatever the configuration and position deviated from the object to be heated Also good. In addition, an embodiment in which the second embodiment or a modification thereof is appropriately combined with the first embodiment or a modification thereof may be an embodiment of the present invention.

DESCRIPTION OF SYMBOLS 1,101 ... Rice cooker main body 2,102 ... Inner pan 3,103 ... Cover body 4 ... Induction coil 6 ... Rotating arm 7, 112 ... Outer cover 8, 113 ... Inner cover 9, 104 ... Rotating body 11 ... Motor 12 , 117 ... small pulley 13 ... belt 14, 118 ... large pulley 15 ... drive side coupling 18, 146 ... first transmission shaft 19, 148 ... second transmission shaft 20 ... first accommodating portion 20a ... inverted stopper 21 ... 2nd accommodating part 21a ... Falling stopper 23 ... Driven side coupling 24, 139 ... 1st miter gear 25, 140 ... 2nd miter gear 26, 141 ... 3rd miter gear 27, 142 ... 4th Miter gear 28 ... rotating shaft 29, 134 ... first inclined surface 30, 135 ... second inclined surface 31 ... third inclined surface 32 ... first step portion 33 ... second step portion 105 ... first 1 stirring member 106 ... 2nd Stirring member 109 ... IH heater 115 ... DC brushless motor for rotating stirring 116 ... Timing belt 124 ... Gear cover 128 ... First accommodation hole 129 ... Second accommodation hole 136 ... Step portion 147 ... First rotation shaft 149 ... 2nd rotation axis 156 ... 1st stopper 157 ... 2nd stopper

Claims (10)

An inner pot for storing the object to be heated;
A rice cooker body in which the inner pot is stored;
A heating unit attached to the rice cooker body and for heating the object to be heated,
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 arranged between the rice cooker body and the lid;
And 攪拌体attached to the rotating body,
A driving mechanism that has one driving unit that generates a driving force and rotates the rotating body with the driving force of the driving unit;
The 攪拌体is movable to the object to be heated accommodated in the inside the pot and 攪拌possible positions, in a position deviated from the object to be heated,
The stirrer has a first end rotatably attached to the rotating body, and a second end located on the opposite side of the first end separates from the rotating body, or the rotating body It is possible to get closer to
The driving unit generates a driving force for rotating the rotating body in the first direction, whereby the second end of the stirring body is separated from the rotating body, while the driving unit moves the rotating body to the A rice cooker characterized in that the second end of the stirrer approaches the rotating body by generating a driving force for rotating in a second direction opposite to the first direction . An inner pot for storing the object to be heated;
A rice cooker body in which the inner pot is stored;
A heating unit attached to the rice cooker body and for heating the object to be heated,
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 arranged between the rice cooker body and the lid;
And 攪拌体attached to the rotating body,
A driving mechanism that has one driving unit that generates a driving force and rotates the rotating body with the driving force of the driving unit;
The 攪拌体is movable to the object to be heated accommodated in the inside the pot and 攪拌possible positions, in a position deviated from the object to be heated,
The operation of the drive mechanism for rotationally driving the rotating body in one direction changes the posture of the stirring body with respect to the rotation surface of the rotating body, and further, the operation of the driving mechanism is continued, whereby the stirring A rice cooker characterized in that a body can be engaged with the rotating body and rotate together with the rotating body . In the rice cooker according to claim 1 or 2 ,
Cooker, characterized in that the can be accommodated in the rotating body at least a part of the 攪拌体. In the rice cooker as described in any one of Claim 1 to 3 ,
The said rotary body is rotatably attached to the said inner pot side of the said cover body, The rice cooker characterized by the above-mentioned. In the rice cooker as described in any one of Claim 1 to 4 ,
The rice cooker characterized in that the stirrer can take a standing state and a lying state with respect to the rotating surface of the rotating body. In the rice cooker as described in any one of Claim 1-5 ,
A rice cooker comprising the first stirrer and the second stirrer. In the rice cooker according to claim 6 ,
The first and second stirring bodies are locked to the rotating body in a state where the distance between the first stirring body and the second stirring body becomes narrower as the distance from the rotating body increases. A rice cooker that rotates with the body. In the rice cooker according to claim 6 or 7 ,
When the first and second stirring bodies are locked to the rotating body and rotate together with the rotating body, the angle formed by the first stirring body with respect to the rotating surface of the rotating body is such that the angle of the rotating body is A rice cooker characterized by being different from an angle formed by the second stirring body with respect to a rotating surface. In the rice cooker as described in any one of Claim 6 to 8 ,
The rotating body has a plurality of gears for rotating the first and second stirring bodies,
The rice cooker characterized in that the first and second stirring bodies are located on the sides of the plurality of gears when the rotary body is viewed from a direction perpendicular to the rotation surface of the rotary body. In the rice cooker according to claim 9 ,
When the rotating body is viewed from a direction perpendicular to the rotation surface of the rotating body, the plurality of gears are positioned so that the plurality of gears are positioned between the first stirring body and the second stirring body. The rice cooker characterized by the 1st and 2nd stirring body being provided.

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