Cooker

Abstract

To realize a cooker that can efficiently agitate contents such as food materials in an inner pot.SOLUTION: A cooker (1) comprises an inner pot (5), a lid body, and an agitating device (20) provided in the lid body, and for agitating contents in the inner pot. The agitating device comprises: a carrier (24) rotatably holding an agitating member (21) at a second rotation center; an internal gear (23) fixed to a surface of the lid body opposed to the inner pot, and whose center is located at a first rotation center; and a planetary gear (22) fixed to the agitating member, whose center is located at the second rotation center, and engaged with the internal gear.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a cooking device that heats and cooks food while stirring it. [Background technology]

[0002] Conventionally, as shown in Patent Document 1, a cooking device has been used that heats and cooks food contained inside an inner pot, for example with a heater. This type of cooking device includes a cooking device body and a lid, where the cooking device body has an inner pot, and the lid has an inner lid and an outer lid. The inner pot is covered by the inner lid by closing the lid on the cooking device body.

[0003] The cooking device described in Patent Document 1 can heat the ingredients inside the inner pot while stirring them with the stirring member of the stirring device. Specifically, the stirring member is provided on the inside surface of the inner lid, has a rotor and two stirring arms, and stirs the ingredients inside the inner pot with the two stirring arms that extend downward from the rotor. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2013-223705 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, although the stirring member of the above-mentioned conventional cooking device has two stirring arms, the two stirring arms are located at the same position relative to the center of rotation of the rotor. Therefore, the two stirring arms stir the same position in the inner pot, which causes a problem that the ingredients in the inner pot cannot be stirred efficiently. In cooking with little moisture, such as stir-frying, it is desirable to stir the ingredients evenly in order to prevent burning and to cook the ingredients thoroughly.

[0006] An object of the present invention is to provide a cooking device equipped with a stirring device that efficiently stirs the contents, such as ingredients, in an inner pot. [Means for solving the problem]

[0007] In order to solve the above problems, a heating cooker according to one embodiment of the present invention comprises an inner pot, a lid body that covers the inner pot, and a stirring device attached to the lid body that stirs the contents of the inner pot, the stirring device comprising a motor, a stirring member that rotates to stir the contents, a rotating holding member that rotates about a first rotation center by the driving force of the motor and holds the stirring member rotatably about a second rotation center radially outside the first rotation center, an internal gear fixed to a surface of the lid body facing the inner pot and whose center is located at the first rotation center, and a planetary gear fixed to the stirring member, whose center is located at the second rotation center, and meshes with the internal gear. Effect of the Invention

[0008] According to one aspect of the present invention, the stirring member can efficiently stir the contents, such as ingredients, in the inner pot. [Brief description of the drawings]

[0009] [Figure 1] FIG. 2 is a perspective view showing the cooking device of the present embodiment in an open state; [Diagram 2] FIG. 4 is a perspective view showing a lid body of the cooking device to which a stirring member is attached. [Diagram 3] FIG. 2 is an exploded perspective view of a lid body of the cooking device to which a stirring member is attached. [Figure 4] FIG. 4 is a bottom view of the lid of the cooking device to which the stirring member is attached. [Diagram 5] 4 is a cross-sectional view showing an internal structure of a lid body of the cooking device to which a stirring member is attached. FIG. [Figure 6] 4 is an explanatory diagram showing an example of trajectories of two stirring arms of a stirring member in the cooking device. FIG. [Figure 7]1 is a diagram showing the orbits of the stirring arm in a stirring device when the number of teeth of the internal gear is fixed and the number of teeth of the planetary gear is changed. FIG. [Figure 8] FIG. 13 is a diagram showing the trajectory when the number of teeth of the internal gear and planetary gear are fixed and the attachment position of the stirring arm is changed in a stirring device. [Figure 9] 1A and 1B are diagrams showing an example of an agitation device in which the orbit of an agitation arm does not deviate in the circumferential direction. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] [Embodiment 1] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

[0011] (1. Overview of the structure of the cooking device 1) Fig. 1 is a perspective view showing a cooking device 1 of this embodiment in an open state. As shown in Fig. 1, cooking device 1 includes a cooking device main body 2 and a lid 3. Cooking device main body 2 and lid 3 are connected by a rotation support part 4 at the rear. Therefore, lid 3 rotates around rotation support part 4, and can be opened and closed with respect to cooking device main body 2.

[0012] The cooker body 2 has an inner pot 5, and the inner pot 5 is stored in a recess inside the cooker body 2 so as to be removable.

[0013] A locking mechanism (not shown) keeps the lid 3 in a closed state. The lid 3 has an open button (not shown) on the top surface, and when the open button is pressed in the closed state, the locking mechanism is released and the lid opens.

[0014] The lid body 3 has an outer lid 6 and an inner lid 7. The outer lid 6 is the housing part of the lid body 3, and houses a motor and the like described later in the internal space. The outer lid 6 is mainly made of resin. The inner lid 7 is made of a metal material such as aluminum or stainless steel. When the lid body 3 is closed, the inner lid 7 becomes a lid for the inner pot 5 and covers the upper surface of the inner pot 5. The inner lid 7 has a packing 8 made of, for example, rubber on its outer periphery. The inner lid 7 is provided on the inner surface of the outer lid 6, and is detachable from the outer lid 6.

[0015] The cooking device 1 includes an agitator 20. The agitator 20 is provided on the lid 3. The agitator 20 includes an agitator member 21 that rotates to agitate the ingredients (contents) in the inner pot 5. In this embodiment, the agitator member 21 includes an agitator arm 212, more specifically, two agitator arms 212A, 212B. The agitator arm 212 may be configured to include only one agitator arm 212, or three or more agitator arms 212A, 212B. The two agitator arms 212A, 212B will be described later.

[0016] (2. Structure of the Stirring Device 20) Fig. 2 is a perspective view showing the lid body 3 of the cooking device 1 with the stirring member 21 attached. Fig. 3 is an exploded perspective view of the lid body 3 of the cooking device 1 with the stirring member 21 attached. Fig. 4 is a bottom view of the lid body 3 of the cooking device 1 with the stirring member 21 attached. Fig. 5 is a cross-sectional view showing the internal structure of the lid body 3 of the cooking device 1 with the stirring member 21 attached.

[0017] As shown in FIGS. 2 and 3, the stirring device 20 includes, in addition to the stirring member 21 described above, a motor (not shown), a planetary gear 22, an internal gear 23, and a carrier (a rotation holding member) 24.

[0018] The motor drives the stirring member 21. The motor is provided in the space inside the outer lid 6 (see FIG. 5). The planetary gear 22 is provided integrally with the stirring member 21. The internal gear 23 is provided on the lower surface (inner surface) of the inner lid 7. The carrier 24 is provided on the outer lid 6 so as to protrude from the lower surface of the inner lid 7. The stirring member 21 is detachably held by the carrier 24. Each of the components constituting the stirring device 20 will be described in detail below.

[0019] 3 and 5, the carrier 24 protrudes from inside the outer lid 6 through an opening 6a formed in the center of the underside of the outer lid 6. Furthermore, the carrier 24 protrudes to the underside of the inner lid 7 through a circular opening 7a formed in the center of the inner lid 7.

[0020] The carrier 24 rotates by the driving force of the motor. The carrier 24 rotates about a first rotation center X1 by the driving force of the motor, and holds the stirring member 21 rotatably about a second rotation center X2 radially outside the first rotation center X1.

[0021] In this embodiment, the carrier 24 has a first shaft portion 241 whose axis is located at the first rotation center X1 and is rotated by the driving force of the motor, and a second shaft portion 243 whose axis is located at the second rotation center X2 and rotatably holds the stirring member 21. The first shaft portion 241 and the second shaft portion 243 are parallel to each other.

[0022] More specifically, the first shaft portion 241 protrudes from the inside of the outer lid 6, and an extension portion 242 extends from the lower end of the first shaft portion 241 radially outward of the first shaft portion 241. The second shaft portion 243 protrudes from the outer end side of the extension portion 242 in a direction away from the outer lid 6. The second shaft portion 243 is parallel to the first shaft portion 241, and holds the stirring member 21 radially outward of the first shaft portion 241. The second shaft portion 243 holds the stirring member 21 rotatably around its axis.

[0023] As shown in Fig. 4, in this embodiment, the first rotation center X1 of the first shaft portion 241 is located at the center of the inner lid 7. The center of the inner lid 7 is also the central portion of the inner pot 5. The first shaft portion 241 rotates about the first rotation center X1 by the driving force of the motor provided inside the outer lid 6. The driving force of the motor may be transmitted to the first shaft portion 241 via, for example, a pulley and a belt.

[0024] Rotation of the first shaft portion 241 causes the entire carrier 24 to rotate about the first rotation center X1. The second shaft portion 243, which is positioned radially outward from the first shaft portion 241, rotates in a circular orbit about the first rotation center X1.

[0025] The agitating member 21 is attached to such a second shaft portion 243. Therefore, the agitating member 21 held by the carrier 24 rotates together with the second shaft portion 243 in a circular orbit centered on the first rotation center X1.

[0026] 2 and 3, the stirring member 21 has a main body 211 that is disposed along the lower surface of the inner lid 7. The first stirring arm 212A and the second stirring arm 212B described above are provided on this main body 211.

[0027] 5, the main body 211 is provided with a connection portion 214 that is connected to the second shaft portion 243 of the carrier 24. The second shaft portion 243 and the connection portion 214 detachably mount the agitating member 21 (main body 211) to the second shaft portion 243. The second shaft portion 243 and the connection portion 214 mount the agitating member 21 so that the agitating member 21 does not fall off the second shaft portion 243 and is rotatable in the circumferential direction (around the axis) of the second shaft portion 243. As a result, the agitating member 21 is held rotatably about X2, which is the center of the second shaft portion 243.

[0028] In this embodiment, the first agitation arm 212A and the second agitation arm 212B are attached at positions offset from the second rotation center X2, which is the center of the second shaft portion 243 in the main body portion 211. Furthermore, in this embodiment, the first agitation arm 212A and the second agitation arm 212B have different distances from the second rotation center X2 when the agitation member 21 rotates.

[0029] 4, if the distance between the first agitation arm 212A and the second rotation center X2 is W1 and the distance between the second agitation arm 212B and the second rotation center X2 is W2, then W2>W1. In other words, the second agitation arm 212B is farther away from the second rotation center X2 than the first agitation arm 212A, and is further away from the second rotation center X2 than the first agitation arm 212A.

[0030] Furthermore, when the distances from the second rotation center X2 of the first agitation arm 212A and the second agitation arm 212B are different, the distances from the first rotation center X1 of the first agitation arm 212A and the second agitation arm 212B will necessarily be different as well.

[0031] In the following, when it is necessary to distinguish between the agitation arms 212 that are at different distances from the second rotation center X2, first agitation arm 212A and second agitation arm 212B are used, and when there is no need to distinguish between them, agitation arm 212 is used.

[0032] 3 and 5, the planetary gear 22 is provided on a surface (upper surface) of the main body 211 facing the inner lid 7 (lid body 3). The planetary gear 22 is fixed to the main body 211, and is provided integrally with the main body 211 in this embodiment.

[0033] The internal gear 23 is provided on the underside of the inner lid 7 (the surface facing the inner pot 5), and the internal gear 23 is fixed to the inner lid 7. The internal gear 23 is provided on the outer periphery of the above-mentioned opening 7a provided in the inner lid 7 so as to surround the periphery of the opening 7a. The center of the internal gear 23 is located at the first rotation center X1.

[0034] The planetary gear 22 is adapted to mesh with the internal gear 23 in a state in which the stirring member 21 is attached to the first shaft portion 241 of the carrier 24. Teeth 22a provided on the outer periphery of the planetary gear 22 mesh with teeth 23a provided on the inner periphery of the internal gear 23.

[0035] (3. Movement of the Stirring Device 20) According to the above configuration, when the motor is driven, the driving force is transmitted to the first shaft portion 241 of the carrier 24, and the carrier 24 rotates around the first center of rotation X1. When the carrier 24 rotates, the second shaft portion 243 rotates in a circular orbit around the first center of rotation X1, so that the stirring member 21 held by the second shaft portion 243 also rotates (moves) on the circular orbit together with the second shaft portion 243.

[0036] When the stirring member 21 is moved on a circular orbit by the carrier, the stirring member 21 rotates about a second rotation center X2, which is the center of the second shaft portion 243, due to the meshing of the planetary gear 22 and the internal gear 23 that are integrally provided.

[0037] In other words, when the carrier 24 rotates, the stirring member 21 rotates (revolves) along the inside of the internal gear 23 in a circular orbit centered on the first center of rotation X1 as shown by arrow Y1, while rotating (spinning) about the second center of rotation X2 as shown by arrow Y2 due to the meshing of the internal gear 23 and the planetary gear 22.

[0038] As a result, the stirring member 21 moves within the inner pot 5 in an orbit that combines revolution and rotation rather than a simple circular orbit, stirring the contents within the inner pot 5, thereby enabling the contents to be stirred efficiently.

[0039] Furthermore, in this embodiment, the agitating arm 212 is attached at a position offset from the second rotation center X2, which is the center of the second shaft portion 243 in the main body portion 211. Therefore, the agitating arm 212 rotates in a circular orbit by rotating on its own axis as well, and moves within the inner pot 5 on a more complicated orbit that combines revolution and rotation to agitate the contents. This makes it possible to agitate the contents in the inner pot 5 more efficiently.

[0040] Furthermore, in this embodiment, the stirring arm 212 includes a first stirring arm 212A and a second stirring arm 212B that rotate at different distances from the second center of rotation X2. Therefore, each of the first stirring arm 212A and the second stirring arm 212B moves within the inner pot 5 on a more complicated trajectory that combines revolution and rotation to stir the contents, further improving stirring performance.

[0041] Fig. 6 is an explanatory diagram showing an example of trajectories of the first agitation arm 212A and the second agitation arm 212B of the agitation member 21 in the cooking device 1. The example of trajectories shown in Fig. 6 is an example of trajectories of one configuration example in which the number of teeth of the internal gear 23 is "58" and the number of teeth of the planetary gear 22 is "40". The trajectory L1 shown by the thin solid line is the trajectory of the first agitation arm 212A. The trajectory L2 shown by the dashed line is the trajectory of the second agitation arm 212B, which is farther from the second rotation center X2 than the first agitation arm 212A.

[0042] 6, first agitation arm 212A and second agitation arm 212B are at different distances from the second rotation center X2, so they follow different trajectories and their agitation areas are not the same. First agitation arm 212A, which is closer to the second rotation center X2, agitates the part closer to the center of the inner pot 5, and second agitation arm 212B, which is closer to the second rotation center X2, agitates the part farther from the center of the inner pot 5. Furthermore, there are some overlapping agitation areas between first agitation arm 212A and second agitation arm 212B.

[0043] In this way, by configuring the mixing bowl 5 with multiple stirring arms 212 at different distances from the second center of rotation X2, it is possible to more evenly stir the contents in the inner pot 5. Note that the example trajectory shown in Fig. 6 is merely one example, and the trajectory can be changed by changing the number of teeth of the planetary gear 22 relative to the number of teeth of the internal gear 23, or the distance of the stirring arm 212 from the second center of rotation X2.

[0044] (4. Relationship between the gear ratio and orbit of the internal gear 23 and the planetary gear 22) Here, the relationship between the number of teeth of the planetary gear 22 relative to the number of teeth of the internal gear 23 and the orbit of the agitation arm 212 will be described with reference to Fig. 7. Fig. 7 is a diagram showing each orbit of the second agitation arm 212B when the number of teeth of the internal gear 23 is fixed at "60" and the number of teeth of the planetary gear 22 is changed in the agitation device 20. The number of teeth of the planetary gear 22 / the number of teeth of the internal gear 23 is the gear ratio.

[0045] Reference numeral 701 indicates the trajectory of the second agitating arm 212B when the planetary gear 22 has 30 teeth and a gear ratio of 1 / 2. In this case, the greatest common denominator between the number of teeth of the internal gear 23 and the number of teeth of the planetary gear 22 is 30. Reference numeral 702 indicates the trajectory of the agitating arm 212 when the planetary gear 22 has 40 teeth and a gear ratio of 2 / 3. In this case, the greatest common denominator is 20.

[0046] Reference numeral 703 indicates the trajectory of the agitating arm 212 when the planetary gear 22 has 41 teeth and a gear ratio of 41 / 60. In this case, the greatest common denominator is 1. Reference numeral 704 indicates the trajectory of the agitating arm 212 when the planetary gear 22 has 45 teeth and a gear ratio of 3 / 4. In this case, the greatest common denominator is 15. Reference numeral 705 indicates the trajectory of the agitating arm 212 when the planetary gear 22 has 50 teeth and a gear ratio of 5 / 6. In this case, the greatest common denominator is 10.

[0047] 7, the number of vertices of orbit L3 is equal to the number of teeth of the internal gear 23 divided by the greatest common divisor mentioned above. As shown by the reference symbols 701, 702, 702, and 705, when the greatest common divisor is large, the number of vertices of the orbit decreases, and the orbit L3 does not have a shape that shifts uniformly in the circumferential direction of a circle centered on the first center of rotation X1.

[0048] In contrast, as shown by the reference symbol 703, when the greatest common divisor is “1”, the number of vertices of the orbit is the same as the number of internal gears, and the orbit L3 has a shape that is uniformly shifted in the circumferential direction of a circle centered on the first rotation center X1.

[0049] Therefore, in order to stir the inside of the inner pot 5 more uniformly, it is preferable that the greatest common divisor of the number of teeth of the internal gear 23 and the planetary gear 22 is a small value close to "1". By setting it to a number that has no common divisors other than "1", stirring can be performed most uniformly. In the example shown in Figure 6 described above, the greatest common divisor is "2", and the apex of the orbit is 29.

[0050] In other words, the number of teeth of the internal gear 23 and the number of teeth of the planetary gear 22 are set so that the orbit of the mixing arm 212 has a shape that is uniformly shifted in the circumferential direction of a circle centered on the first rotation center X1 of the carrier 24.

[0051] Reference numeral 706 in Fig. 7 is obtained by adding a trajectory L4 of the first agitating arm 212A to the trajectory of reference numeral 703. As with the example of the trajectory in Fig. 6, by providing two agitating arms 212 at different distances from the first rotation center X1, an overlapping region occurs in the respective trajectories, and the agitation regions overlap.

[0052] Fig. 8 is a diagram showing an example of a trajectory when the numbers of teeth of the internal gear 23 and the planetary gear 22 are fixed and the distance from the second center of rotation X2 to the stirring arm 212 is changed in the stirring device 20. The number of teeth of the planetary gear 22 relative to the number of teeth of the internal gear 23 in Fig. 8 is the same as that of reference numeral 702 in Fig. 7, and the position of the stirring arm 212 is changed.

[0053] The trajectory L5-1 is farthest from the second center of rotation X2, followed by the trajectory L5-2, the trajectory L5-3, the trajectory L5-4, and the trajectory L5-5 in order of shortest distance. As can be seen from Fig. 8, by changing the distance of the agitating arm 212 from the second center of rotation X2, the shape of the trajectory changes, but the number of vertices does not change.

[0054] 9 is a diagram showing an example in which the trajectory of the agitation arm 212 in the agitation device 20 does not deviate in the circumferential direction. Reference numeral 901 indicates a trajectory with a gear ratio of "1 / 2", reference numeral 902 indicates a trajectory with a gear ratio of "1 / 3", and reference numeral 903 indicates a trajectory with a gear ratio of "2 / 3". Reference numeral 904 indicates a trajectory with a gear ratio of "1 / 4", and reference numeral 905 indicates a trajectory with a gear ratio of "3 / 4". Reference numeral 906 indicates a trajectory with a gear ratio of "1 / 5", reference numeral 907 indicates a trajectory with a gear ratio of "2 / 5", reference numeral 908 indicates a trajectory with a gear ratio of "3 / 5", and reference numeral 909 indicates a trajectory with a gear ratio of "4 / 5". Reference numeral 910 indicates a trajectory with a gear ratio of "1 / 6", and reference numeral 911 indicates a trajectory with a gear ratio of "5 / 6".

[0055] The orbits indicated by symbols 902, 904, 906, 907, 908, and 909 pass through areas from near the first rotation center X1 to away from the first rotation center X1, and therefore have higher mixing performance than a stirring member moving in a simple circular orbit.

[0056] In other words, in the stirring device 20, the number of teeth of the internal gear 23, the number of teeth of the planetary gear 22, and the position of the stirring arm 212 relative to the second shaft portion 243 of the carrier 24 may be set so that the trajectory of the stirring arm 212 passes through a circular area of ​​a specified diameter centered on the first rotation center X1 and has three or more vertices.

[0057] 6 to 9 is the trajectory of the rod-shaped portion of stirring arm 212. Therefore, by changing the shape of the tip of stirring arm 212 that faces (or comes into contact with) the bottom surface of inner pot 5, it is possible to further improve the stirring performance.

[0058] In addition, the agitation arm 212 (first agitation arm 212A, second agitation arm 212B) may be detachable from the main body part 211, or may be rotatable relative to the main body part 211 and folded into a shape that fits along the underside of the inner lid 7.

[0059] The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope of the claims. The technical scope of the present invention also includes embodiments obtained by appropriately combining the technical means disclosed in the different embodiments. Furthermore, new technical features can be formed by combining the technical means disclosed in the respective embodiments.

[0060] 〔summary〕 A cooking device according to aspect 1 of the present invention comprises an inner pot, a lid body that covers the inner pot, and a stirring device attached to the lid body that stirs the contents of the inner pot, the stirring device comprising a motor, a stirring member that rotates to stir the contents, a rotating holding member that rotates about a first rotation center by the driving force of the motor and holds the stirring member radially outside the first rotation center so that it can rotate about a second rotation center, an internal gear fixed to a surface of the lid body facing the inner pot and whose center is located at the first rotation center, and a planetary gear fixed to the stirring member, whose center is located at the second rotation center, and meshes with the internal gear.

[0061] A heating cooker according to aspect 2 of the present invention is similar to aspect 1 in that the stirring member may include a main body portion held by the rotating holding member, and a stirring arm attached to the main body portion at a position offset from the second center of rotation.

[0062] A cooking device according to a third aspect of the present invention is similar to the second aspect, in that the agitating arm may include a first agitating arm and a second agitating arm that is at a longer distance from the second center of rotation than the first agitating arm.

[0063] A heating cooker according to aspect 4 of the present invention is similar to aspect 2 or 3, in that the number of teeth of the internal gear and the number of teeth of the planetary gears may be set so that the orbit of the agitator arm has a shape that is uniformly shifted in the circumferential direction of a circle centered on the first center of rotation.

[0064] A heating cooker according to aspect 5 of the present invention is characterized in that, in aspect 2 or 3, the number of teeth of the internal gear, the number of teeth of the planetary gear, and the position of the agitator arm relative to the second center of rotation may be set so that the orbit of the agitator arm passes through a circular area of ​​a specified diameter centered on the first center of rotation and the orbit has three or more vertices.

[0065] A cooking device according to aspect 6 of the present invention is any one of aspects 1 to 5, wherein the rotatable supporting member has a first shaft portion whose axis is located at the first rotation center and which is rotated by the driving force of the motor, and a second shaft portion whose axis is located at the second rotation center and which rotatably supports the stirring member. [Explanation of symbols]

[0066] 1 Cooker 3 Lid 5. Inner pot 6 Outer lid 6a, 7a opening 7 Inner lid 20 Mixing device 21 Stirring member 22 Star Gear 22 Planetary Gear 23 Internal gear 24 Carrier (rotating holding member) 211 Main body 212 Mixing arm 212A First Mixing Arm 212B Second mixing arm 241 First shaft 243 Second shaft

Claims

1. The inner pot and A lid body for covering the inner pot; A stirring device provided on the lid for stirring the contents of the inner pot; The stirring device is A motor; A stirring member that rotates to stir the contents; a rotation holding member that rotates about a first rotation center by a driving force of the motor and holds the stirring member radially outwardly of the first rotation center so as to be rotatable about a second rotation center; An internal gear is fixed to a surface of the lid body facing the inner pot, and the center of the internal gear is located at the first rotation center; a planetary gear fixed to the stirring member, the center of which is located at the second rotation center, and the planetary gear meshing with the internal gear.

2. The stirring member is a main body portion held by the rotation holding member and to which the planetary gear is fixed; The cooking device according to claim 1 , further comprising: an agitating arm attached to the main body at a position offset from the second center of rotation.

3. 3. The cooking device according to claim 2, wherein the agitating arm includes a first agitating arm and a second agitating arm that is located at a greater distance from the second rotation center than the first agitating arm.

4. The heating cooker described in claim 2, wherein the number of teeth of the internal gear and the number of teeth of the planetary gear are set so that the orbit of the mixing arm has a shape that is uniformly shifted in the circumferential direction of a circle centered on the first center of rotation.

5. The heating cooker described in claim 2, wherein the number of teeth of the internal gear, the number of teeth of the planetary gear, and the position of the agitator arm relative to the second center of rotation are set so that the orbit of the agitator arm passes through a circular area of ​​a specified diameter centered on the first center of rotation and the orbit has three or more vertices.

6. The rotating holding member is 2. The cooking device according to claim 1, further comprising: a first shaft portion having an axis located at the first rotation center and rotated by a driving force of the motor; and a second shaft portion having an axis located at the second rotation center and rotatably holding the stirring member.

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