JP2000107031A - Agitator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an agitator free from the co-turn of foodstuffs together with an agitation vane for preventing the gathering of foodstuffs ad the center of a heating kettle or leaving non-agitated foodstuff by applying the constitution that agitation vanes on the end of an agitation shaft inserted in a heating kettle are made to give a unique motion respectively. SOLUTION: A drive transmission shaft 5 rotated on the operation of an electric motor, and agitation vanes 19a laid on the lower end of an agitation drive shaft 15 interlocked with the drive transmission shaft 5 are inserted in a heating kettle 2 for agitation. In this case, a support arm 17 is provided at the lower end of an agitation drive shaft so as to be capable of freely turning in a vertical direction, in such a state as preventing the turn of the agitation drive shaft radially extended. Also, at least one agitation vane inclined at a preset angle for moving an agitation object in an axial direction is attached to the front end of the support arm 17. Furthermore, the lower end of the agitation vane is formed t suit the inner bottom shape of the heating kettle and the agitation drive shaft is provided with an energization means 16A for energizing and causing the lower end of the agitation vane to come in slidable contact with the heating kettle at all times.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stirrer for a heating kettle used for producing foods such as kneaded bean paste, custard cream, jam or general food curry roux, sauce and soup used for confectionery.

[0002]

2. Description of the Related Art Conventionally, foodstuffs put into a foodstuff heating kettle having a curved bottom or a hemispherical bottom are dropped into a heating kettle with a stirring drive shaft interlocked with a drive transmission shaft driven by an electric motor. In addition, a stirrer is provided in which a stirring blade that is in sliding contact with the inner surface of the heating pot is attached to a tip portion of the stirring drive shaft to stir the food so that the food is not scorched. Further, in the conventional stirrer, the stirring drive shaft is connected to the planetary shaft of the planetary gear circumscribing the sun gear arranged corresponding to the center of the heating pot,
The agitating drive shaft can be rotated and revolved, and the stirring drive shaft can be inclined in the heating kettle with respect to the vertical shaft with the stirring operating shaft suspended from above in the heating kettle or the planetary shaft of the planetary gear meshing with the sun gear. A stirring oblique shaft configuration inserted obliquely from above is known.

[0003]

As described above, in the conventional stirrer, the food in the heating pot is stirred by rotating the stirring blade attached to the tip of the vertical axis or the oblique axis. The food in the kettle is pushed in a direction perpendicular to the stirring blades and rotates together with the stirring blades, so that some foods are accompanied by the stirring blades, causing uneven cooking and burning of the foods. is there. In addition, since the stirring blades are attached to the tip of the rotating stirring vertical axis or stirring oblique axis so that they are positioned in a straight line symmetrically to the left and right, food that is not stirred is placed in the center of the heating pot. If the ingredients are left or the stirring blades rotate,
There was a problem that they gathered in the center of the heating pot. The present invention solves the above-mentioned problems, and causes the left and right stirring blades pivotally attached to the tip of the stirring shaft inserted into the heating kettle to perform their own movements, thereby lowering the inner bottom of the heating kettle. Even if it has a special shape other than an arc shape, the stirring of the ingredients is performed completely by securely sliding the lower end of the stirring blade, the food does not rotate with the stirring blade, and the food is further placed in the center of the heating pot. It is an object of the present invention to provide a stirrer capable of preventing gathering and leaving no stirring.

[0004]

According to a first aspect of the present invention, a drive transmission shaft rotatably driven by an electric motor and a stirring blade disposed at a lower end portion of a stirring drive shaft interlocked with the drive transmission shaft are provided in a heating pot. In a stirrer that stirs the object to be stirred by being inserted into the stirrer, a support arm that extends in the outer peripheral direction at the lower end of the stirrer drive shaft and that is pivotally attached to the stirrer drive shaft so as to be rotatable in the vertical direction is fixed around the axis of the stirrer drive shaft, At least one of the distal ends of the support arm is inclined at a predetermined angle so as to move the object to be stirred in the outer peripheral direction of the heating pot with respect to the axial direction of the support arm.
The stirring drive shaft is provided with a biasing means for biasing the lower end portion of the stirring blade in a direction in which the lower end portion of the stirring blade is always in sliding contact with the inner surface of the heating pot.

According to a second aspect of the present invention, in the stirrer according to the first aspect, a planetary gear meshing with the outer periphery of a sun gear driven by the electric motor is provided with a planetary gear that rotates and revolves. The stirring drive shaft is connected to a planetary shaft having an inclination angle, and a lower end of the stirring drive shaft is provided with the stirring blade inclined at a predetermined angle with respect to the axis of the stirring drive shaft and above the stirring blade. It is characterized in that the rim is disposed so as to be at a position retracted in the rotation direction.

According to a third aspect of the present invention, in the stirrer according to any one of the first to second aspects, a vertical direction extending around the lower end of the stirring drive shaft and fixed around the axis of the stirring drive shaft. A support arm rotatably mounted on the support arm is provided symmetrically, and the stirring blades are disposed at both ends of the support arm.

According to a fourth aspect of the present invention, in the stirrer according to any one of the first to third aspects, the predetermined inclination angle for moving the object to be stirred in the outer peripheral direction of the heating pot is in a range of 5 to 45 degrees. It is characterized by having.

According to a fifth aspect of the present invention, in the stirrer according to any one of the first to fourth aspects, the shapes and lengths of the stirring blades respectively attached to the left and right bent end portions of the support arm are different from each other. It is characterized by having been made different.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of a stirrer according to the present invention will be described below with reference to FIGS. FIG.
FIG. 2 is a longitudinal sectional view of a main part of the stirrer according to the first embodiment of the present invention. FIG. 2A shows a stirring shaft and a part of a stirring blade rotatably mounted on a lower end portion of the stirring shaft. FIG. 3 (B) is a right side view as viewed in the direction of arrow A in FIG.
FIG. 4 is a plan view showing a state in which a stirring blade is attached to a tip end portion of a stirring shaft via a support arm and a support arm of the stirring blade.

In FIG. 1, 1 is a stirrer, 2 is a heating pot, and the heating pot 2 is made of a material such as iron, copper, stainless steel or a laminated steel plate of copper and stainless steel, and has a bottom surface formed into a curved surface or a semicircular shape. The heater is heated by a heating means such as a gas (not shown) or steam supplied to a steam chamber formed to cover the outer periphery of the bottom of the heating pot 2. Above one side of the heating pot 2, there is provided a speed reducer for reducing the driving force from an electric motor (not shown) covered by a cover 3. An endless chain is attached to a chain sprocket fixed to an output shaft of the speed reducer. The chain 4 is engaged with a chain sprocket 6 of a drive transmission shaft 5 which is a rotation mechanism on the drive side. A gear 7 is fixed to the drive transmission shaft 5, and a gear 8 meshing with the gear 7 is fixed to an upper end 9 a of a sun shaft 9. In this case, the planetary shaft 12 is inclined at a predetermined inclination angle γ, preferably 15 to 25 degrees, with respect to a vertical line in the direction of gravity.
The sun shaft 9 is rotatably supported at the lower end of the cover 3 via a bearing 10. A sun gear 11 is fixed to the lower end of the sun shaft 9, and meshes with a planet gear 13 attached to the tip of the planet shaft 12.

The planetary shaft 12 is rotatably supported by a rotating member 14 fixed to the sun shaft 9, and the planetary shaft 1
The stirring drive shaft 15 whose axis coincides with the axis 2 is removably connected by a connection mechanism 16 and is arranged obliquely from above toward the inside of the heating pot 2. The stirring drive shaft 15 includes a connection shaft 15a provided with a coil spring 16a, which is an elastic member that acts to constantly press the lower end surfaces of stirring blades 19a and 19b described later on the inner surface of the heating pot 2, and the connection shaft. And a hollow shaft tube 15b which is slidably fitted in a vertical direction via a sliding member 15d such as a bearing or a roller attached to the lower end of the shaft 15a.

The elastic member 16a and the sliding member 15
d, the stirring blades 19a, 1
The urging means 16A which always acts so as to press the lower end surface of 9b against the inner surface of the heating pot is constituted. The hollow shaft tube 1
A support arm 17 is provided at the lower end 15c of the heating pot 5b along the inner surface of the heating pot 2. The support arm 17 pivots at a substantially central portion in the longitudinal direction by a pivot pin 18 in the vertical direction. It is freely pivoted, but its axial rotation is restricted.

The left and right distal ends 17a of the support arm 17 are
As can be seen in FIG. 2A, plastic stirring blades 19a and 19b having excellent heat resistance are fixed to the mounting member 17a by mounting brackets 20a. The support arm 17 is formed by bending the left and right front ends 17a and 17b in the longitudinal direction in opposite directions in the front-rear direction, and furthermore, bending the support arms 17 vertically downward to form bent ends 17c and 1b.
7d is formed. And, each bent end portion 17
As shown in FIG. 3, c and 17d have a predetermined angle α with respect to the longitudinal axis of the support arm 17, for example, an attachment angle in a range of 5 ° to 45 °, preferably an angle inclined at 25 to 35 °. Of each stirring blade 19 in the same direction (parallel).
a and 19b are positioned and fixed.

As shown in FIG. 2 (B), the agitating blades 19a and 19b have their food contact surfaces opposite to each other so that their upper edges are retracted in the rotational movement direction. An angle β with respect to the stirring drive axis, preferably 15
Tilted about 25 degrees (stirring blades 19a, 19b
(The direction in which the food contact surface 23 approaches the inner surface of the bottom of the heating pot 2).

Reference numeral 21 denotes a bellows provided at the upper end opening of the hollow shaft tube 15b for preventing food from adhering to the connecting shaft 15a and the coil spring 16a and scattering of lubricating oil and the like. is there. Reference numeral 22 denotes a rail fixed to the inner wall surface of the hollow shaft tube 15b.
Sliding members 1 such as rollers and bearings attached to the tip of
5d is guided vertically. The coil spring 16a is supported between the locking member 15e of the connecting shaft 15a and the upper end of the rail 22. Also,
The inclination angle γ of the planet shaft 12 with respect to the vertical line in the direction of gravity.
Is preferably greater than γ between the angle β of the stirring blades 19a and 19b with respect to the stirring drive shaft 15.

The operation of the stirrer according to the first embodiment configured as described above will be described. Ingredients such as bean paste to be heated and stirred are put into the heating kettle 2, and while the heating kettle 2 is heated by a heating means such as gas, an electric motor (not shown) of the stirrer 1 is driven to drive the electric power via the endless chain 4. To the transmission shaft 5 of the rotation mechanism. The driving force of the transmission shaft 5 is transmitted to the sun gear 11 via the gear 8 of the sun shaft 9 and has a predetermined inclination angle with respect to the planetary gear 13 meshed with the outer periphery of the sun gear 11 and a vertical line in the direction of gravity. While the planetary shaft 12 revolves and rotates, the stirring drive shaft 15 connected to the lower end of the planetary shaft 12 is rotationally driven, and the stirring blades 19 a and 19 b attached to the lower end of the stirring drive shaft 15 via the support arm 17.
Is moved while revolving and rotating, and the ingredients in the heating pot 2 are stirred and mixed while being heated.

At the time of mixing and stirring the above-mentioned ingredients, the stirring blades 19a and 19b attached to the lower end of the stirring drive shaft 15 are used.
Is a hollow shaft tube 15 which is a component of the stirring drive shaft 15.
b, the left and right distal ends 17a, 1 of a support arm 17 rotatably connected to the lower end 15c along the inner surface of the heating pot 2.
7b are bent in opposite directions in the front-rear direction, and further bent vertically toward the lower side.
As shown in FIG. 3, c and 17d are, as shown in FIG. 3, a predetermined angle α with respect to the longitudinal axis of the support arm 17, for example, a mounting angle in a range of 5 ° to 45 °, preferably a mounting angle inclined at 25 to 35 °. Since the foodstuffs slide in the foodstuff contact surface 23 of the stirring blades 19a and 19b in accordance with the rotational movement of the stirring blades 19a and 19b, the foodstuffs are attached. Elimination of concentration at the center of the heating pot has been eliminated.

Further, as shown in FIG. 2B, the stirring blades 19a and 19b mounted on the support arm 17 are respectively positioned at positions retracted from each other in the rotational movement direction. Angle β to the heart, preferably 15-2
Since it is fixed to the left and right ends of the support arm 17 in a state in which the support arm 17 is tilted about 5 degrees, individual movements are possible individually,
The relative movement of the inclined stirring blades 19a and 19b with respect to the inner surface of the bottom of the heating pot 2 is performed by rotating in an arc shape about the center of the heating pot 2 so that one of the stirring blades 19a moves relative to the inner surface of the bottom of the heating pot 2. During the rotation from the most inclined state by 180 degrees, the agitating drive shaft 15 gradually rises up and becomes close to the vertical direction.
Is rotated in the most inclined state from the vertical state in which the stirring blade 19a rises, so that the object to be stirred is pushed up to the outer edge side of the inner surface of the heating pot 2 due to the rotational movement of the stirring blades 19a and 19b. The object to be stirred is rotated while the attitude is controlled in the direction in which the stirring blades 19a and 19b rise or sleep without sticking.
9a, 19b without being fixed to the stirring blades 19a, 19b.
The object to be stirred is not pressed against the bottom of the inner surface of the heating pot 2 by the inclination of 19b.

At the center of the inner surface of the heating pot 2 where the objects to be stirred (foodstuffs) are concentrated, the stirring blades 19a, 19b
The stirrer of any of the above is in a tall state in which the contact surface 23 with the object to be stirred stands upright with respect to the vertical direction. It is possible to stir a food while scooping it up toward the upper edge of the stirring blade.

Further, as shown in FIG. 7, when the movement of one specific point (the tip is shown in the figure) on one side of the stirring blades 19a, 19b is observed, a trochoid curve or a cycloid curve is drawn. Both stirring blades 19
Looking at a and 19b, it is possible to stir the entire area of the heating pot 2.

Further, a coil spring 16a which is an elastic member attached to the connecting shaft 15a, a sliding member 15
By the urging means 16A made of d, the inner shape of the heating pot 2 can be adapted to a special shape having a curved surface other than an arc shape which is a part of a circle, and the stirring blades 19a, 19a.
The lower end surface of b can be always brought into close contact with the inner surface of the heating pot 2, so that the ingredients can be surely mixed without being scorched on the inner surface of the heating pot.

FIG. 4 shows a second embodiment of the present invention. In this embodiment, the sun gear 30 is a spur gear,
And a planetary gear 32 and a planetary shaft 3 at the lower end of the sun shaft 31.
3 is formed, and the planetary shaft 33 is formed with a hollow portion 35 into which the tip of a stirring drive shaft 34 is fitted and connected. The upper bottom 35a of the hollow portion 35 and the stirring drive shaft 34 are formed. A coil spring 36, which is an elastic member, is provided between the lower end of the stirring blade and the upper end surface 34a of the stirring drive shaft 34. An urging means 16B for urging the portion in such a manner as to constantly slide the portion on the inner surface of the heating pot is provided.

In this embodiment, the stirring drive shaft 34
Is a vertical axis to the inner surface of the heating pot 2,
In other configurations, since the planetary shaft 33 is vertical, the stirring blades 19a and 19b cannot be inclined at a predetermined angle with respect to the axis of the stirring drive shaft 15; Since it is almost the same as in the first embodiment to incline at a predetermined angle so as to move the inner surface of the heating kettle 2 toward the outer periphery, the same portions are denoted by the same reference numerals and description thereof will be omitted.

FIG. 5 shows a third embodiment of the present invention. In this embodiment, a large-diameter portion 40 having a rectangular cross section in a plane at the upper end of a stirring drive shaft 40 is provided.
a, and radial bearings or rollers 42a are disposed at both ends of a short shaft 43 fitted orthogonally to the lower end of the planetary shaft 41 to slide on the wall surface of the rectangular hollow portion 40b of the large diameter portion 40a. The hollow part 4 is fitted movably.
A coil spring 36, which is an elastic member, is disposed between the bottom 40c of the planetary shaft 41 and the lower end surface 41a of the planetary shaft 41. The rectangular hollow portion 40b and a bearing or roller 42a attached to the lower end of the planetary shaft 41 are provided. The stirring blades 19a, 19
The urging means 16C for urging the lower end portion b in the direction in which the lower end portion always slides on the inner surface of the heating pot 2 is constituted.

The urging means 16A, 16B, 16C provided in the first to third embodiments can be used in any of the first to third embodiments.

FIG. 6 shows a fourth embodiment of the present invention. In this embodiment, the stirring blade 1 constituted by the coil spring 36 as an elastic member and the planet shaft 51 is used.
In a stirrer provided with biasing means 16B for constantly biasing the lower ends of 9a and 19b in a direction of slidingly contacting the inner surface of the heating pot 2, a support arm 17 attached to a tip 53 of a stirring drive shaft 52, This shows a modification of the state in which the stirring blades 19a and 19b provided at both ends of the arm 17 are attached. That is, in the above embodiment, the stirring blades 19a, 19 attached to both ends of the support shaft arm 17 mounted on the lower end portion 53 of the stirring drive shaft 52 by the pivot pin 54.
b are attached in a fixed state. In this embodiment, the bent ends 17c and 17d of the support arm 17 are used.
And the stirring blades 19a and 19b are connected by a pivot pin 55,
The stirring blades 19a and 19b are respectively connected to the pivot pin 5
5 so that the stirring blades 19a and 1 of the first embodiment can rotate vertically.
9b is tilted at a predetermined angle with respect to the axis 15 of the stirring drive shaft 15, and the stirring blades 19a and 19b of the second embodiment are both not tilted with respect to the axis of the stirring drive shaft 15. Since the configuration is the same as that of the embodiment, the same portions are denoted by the same reference numerals and description thereof will be omitted.

In the above-described embodiment, the stirring blades 19a, 19d fixed to the bent ends 17c, 17d of the support arm 17 rotatably connected to the lower end 53 of the stirring drive shaft 52.
Although the embodiment in which the pair of left and right 19b are arranged symmetrically has been described, the stirring blade 19a may be provided on only one of the support arms 17, and one stirring blade 19a may be provided.
7, the tip L1 on the outer peripheral side of the stirring blade 19a rotates while drawing a locus like a solid line, and the rear end L2 of the stirring blade 19a located on the center side of the heating pot 2 is a chain line. The stirrer 19a
As a whole, the agitating sliding movement is performed over almost the entire bottom inner surface of the heating pot 2, and the food material to be agitated can be sufficiently agitated.

Further, the first and second embodiments are arranged such that the stirring blades 19a and 19b are arranged symmetrically as a pair of left and right sides, or that the stirring blades 19a are provided on only one of the support arms 17. Falls under both. Further, FIG. 7 also shows the trajectory of the leading end L1 and the trailing end L2 of only one stirring blade 19a, which corresponds to the first and second embodiments as described above. If the number of stirring blades 19a and 19b becomes two, Sliding and stirring more areas.

Furthermore, the shape of the stirring blades 19a, 19b fixed to the bent ends 17c, 17d of the support arm 17 rotatably pivoted to the lower end of the stirring drive shaft is provided at the lower end of the stirring drive shaft. Bending end 1 of support arm 17 rotatably pivoted
Although the shape and length of the stirring blades 19a and 19b fixed to 7c and 17d are made larger and smaller than each other, a turbulent flow is generated in the object to be stirred and the stirring capacity is increased. Even if the shapes and lengths of the stirring blades 19a and 19b are the same, the same stirring operation can be expected.

[0030]

As described above, according to the stirrer according to the present invention, the drive transmission shaft rotatably driven by the electric motor and the stirring blade disposed at the lower end of the stirring drive shaft interlocked with the drive transmission shaft are heated. In a stirrer that stirs an object to be stirred by being inserted into a kettle, a supporting arm that extends in the outer peripheral direction at a lower end portion of the stirring drive shaft and that is pivotally attached to the stirring drive shaft so as to be rotatable in the vertical direction and fixed around the axis of the stirring drive shaft. At least one agitating blade is provided at the tip of the support arm and is inclined at a predetermined angle so as to move the object to be stirred in the outer peripheral direction of the heating pot with respect to the axial direction of the support arm. Since the drive shaft is provided with an urging means for urging the lower end portion of the stirring blade in a direction of always slidingly contacting the inner surface of the heating pot, the following effects are obtained.

That is, the foodstuffs move while sliding outward on the stirring movement surface of the stirring blades as the stirring blades rotate, so that the foodstuffs are prevented from gathering at the center of the heating pot. Also, the inner shape of the heating pot can be adapted to a special shape having a curved surface other than an arc shape that is a part of a circle, and the stirring blade is further provided by an urging means including an elastic member attached to the connection shaft. The bottom end surface of the cooking pot can be always brought into close contact with the inner surface of the heating pot, and the ingredients can be surely mixed without being scorched on the inner surface of the cooking pot.

Further, the stirring blades mounted on the support arm are turned around the support arm in a state in which the stirring blades are inclined at a predetermined angle with respect to the axis of the stirring drive shaft in a direction opposite to the rotational movement direction. Since it is movably pivoted, it can move independently of each other, and at the center of the inner surface of the heating pot 2 where the object to be stirred is concentrated, the stirring blade moves the contact surface with the object to be stirred by gravity. In order to maintain a high increasing posture with respect to the direction, the amount of departure beyond the upper edge of the stirring blade is minimized and the object to be stirred can be stirred while scooping up toward the upper edge of the stirring blade. The mixture can be reliably stirred and mixed without being scorched.

Further, according to the present invention, the movement of moving the object to be stirred in the outer peripheral direction of the inner surface of the heating pot, and the locus of a specific point on the stirring blade by using the sun gear and the planetary gear are particularly observed. The movement indicated by the trochoid curve moving through the entire area of the heating pot, and the movement of the stirring blade standing or sleeping by tilting the planetary shaft and tilting the stirring blade with respect to the axis of the stirring drive shaft The above three movements are combined to provide an excellent stirring function that cannot be expected from a conventional stirrer.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a main part of a stirrer according to a first embodiment of the present invention.

FIG. 2 (A) is a front view showing a cross section of a stirring shaft and a part of a stirring blade that is swingably mounted at a lower end portion of the stirring shaft,
(B) is a right side view as seen from the direction of arrow A in FIG. 3.

FIG. 3 is a plan view showing a state in which a stirring blade is attached to a tip end of a stirring shaft in FIG.

FIG. 4 is a longitudinal sectional view of a main part of a stirrer according to a second embodiment of the present invention.

FIG. 5 is a longitudinal sectional view of a main part of a stirrer according to a third embodiment of the present invention.

FIG. 6 is a longitudinal sectional view of a main part of a stirrer according to a fourth embodiment of the present invention.

FIG. 7 is an explanatory diagram showing a movement locus of a stirring blade of a stirrer according to a fourth embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Stirrer 2 Heating pot 3 Cover 4 Endless chain 5 Drive transmission shaft 7 Gear 8 Gear 9 Sun shaft 11 Sun gear 12 Planetary shaft 13 Planetary gear 15 Stirring drive shaft 15a Connection shaft 15b Hollow shaft tube 15c Lower end 15d Sliding member 16 Connection Mechanism 16a Coil spring (elastic member) 16A, 19B, 19C Energizing means 17 Support arm 17a, 17b Left, right tip 17c, 17d Left, right bent end 18 Pivot pin 19a, 19b Stirring blade 21 Bellows 22 Rail

Continued on the front page F-term (reference) 4B053 AA01 BA12 BB01 BC02 BC03 BC11 BC13 BE05 BE07 BE12 BE13 BF02 BF15 BH01 BH17 BK01 BK36 BL01 BL20 4B054 AA02 AA16 AA23 AB01 AC05 AC20 CD02 CD06 CD07 CD10 4G004 DA21A23 EA01 DB04

Claims (5)

[Claims] 1. A stirrer for rotating a drive transmission shaft driven by an electric motor and a stirring blade disposed at a lower end of a stirring drive shaft interlocked with the drive transmission shaft into a heating pot to stir the object to be stirred. A support arm extending in the outer circumferential direction at a lower end of the stirring drive shaft and rotatably pivoted in a vertical direction and fixed around the axis of the stirring drive shaft; and a support arm at a tip end of the support arm. At least one stirring blade inclined at a predetermined angle so as to move the object to be stirred in the outer peripheral direction of the heating pot with respect to the axial direction of the heating kettle, and the lower end of the stirring blade is always attached to the stirring drive shaft. A stirrer characterized by comprising an urging means for urging in a direction in which it slides on the inner surface of the heating pot. 2. The agitation drive shaft is mounted on a planetary shaft having a predetermined inclination angle with respect to a vertical line in the direction of gravity provided with a planetary gear that rotates and revolves around the sun gear that is rotationally driven by the electric motor. Connected, and at the lower end of the stirring drive shaft, the stirring blade is inclined at a predetermined angle with respect to the axis of the stirring drive shaft, and the upper edge of the stirring blade is at a position retracted in the rotation direction. The stirrer according to claim 1, wherein the stirrer is disposed in a stirrer. 3. A support arm extending circumferentially at a lower end portion of the stirring drive shaft and fixed around the axis of the stirring drive shaft and rotatably mounted in a vertical direction is provided symmetrically with respect to the left and right sides, and both ends of the support arm are provided. The stirrer according to any one of claims 1 to 2, wherein the stirrer blades are arranged in the respective stirrers. 4. The stirrer according to claim 1, wherein the predetermined inclination angle for moving the object to be stirred in the outer peripheral direction of the heating pot is in a range of 5 to 45 degrees. 5. The stirrer according to claim 1, wherein the shape and length of the stirring blades attached to the left and right bent ends of the support arm are different from each other. Stirrer.