Electromagnetic induction heating food mixer

Abstract

In addition to being able to load ingredients and remove them after cooking in a comfortable working position, it also allows for convenient and unrestricted adjustment of the installation position of the induction heating coil that heats the bottom of the food storage pot, as well as maintenance. [Solution] An IH heater that heats the flat bottom surface of the food storage pot T is fixedly mounted horizontally between the left and right installation boxes on the stirring side and the operation side, while the body surface 6 of the food storage pot, which is rotating due to a pot rotation drive motor 17 fixedly installed on the pot holder M, is supported by a plurality of freely rotatable pot support rollers journaled on the pot holder, and the pot holder is pivotally attached to both installation boxes so that it can rotate up and down freely by a pair of left and right rotating support shafts 29L, 29R that extend from a position eccentric forward of the diameter line that crosses the center of the food storage pot, so that the food storage pot can be raised and turned over from behind it.

Description

[Technical Field]

[0001] The present invention relates to an electromagnetic induction heating type commercial mixer used for stir-frying various ingredients, as well as for simmering, mixing, and other cooking. [Background technology]

[0002] Patent documents 1 and 2 disclose commercial food mixers equipped with an electromagnetic induction heater (IH heater) that heats the bottom of a food storage pot, a rotation drive mechanism for the food storage pot, and a tipping operation mechanism, both of which have been implemented by the applicant of the present invention. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 3643027 [Patent Document 2] Patent No. 7553144 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the configuration of the invention described in Patent Document 1, firstly, the cooking container for storing ingredients (ingredients storage pot) (A) is a bowl pot with a curved bottom, which makes it difficult to manufacture the IH heating coil in the IH heater (C) and to adjust it to prevent uneven heating, requiring high manufacturing costs and considerable adjustment effort. Depending on the adjustment, this can result in a reduction in the heating area or failure of the IH heating inverter.

[0005] Secondly, it is not possible to completely seal the space between the rotating cooking vessel (A) and the support frame (IH heating coil case) (34) of the fixed IH heater (C), so the IH heating coil cannot be made waterproof or dustproof.

[0006] Thirdly, the cooking vessel rotation drive mechanism (B) employs a chain (14) attached and integrated to the body of the cooking vessel (A) that engages with an output sprocket wheel (29) that is fitted and integrated with the rotary transmission shaft (25) from the drive motor (18). This makes it essential to supply lubricating oil or grease to the engaging portion, and there is a risk that these may become contaminated with the food ingredients and get mixed into the cooking vessel (A).

[0007] Furthermore, fourthly, the induction heater (C) that heats the bottom surface of the cooking vessel (A) is installed together with the cooking vessel rotation drive mechanism (B) in a drive box (3) that is approximately U-shaped when viewed from the front, and the drive box (3) is pivotally attached to a pair of left and right bearing boxes (2a) and (2b) on the installation base (1) by a pair of left and right parallel rotating support shafts (4a) and (4b) on a diameter line that crosses the center of the cooking vessel (A) so that it can rotate up and down (so that it can be turned over). Therefore, when the cooking vessel (A) is installed horizontally, the installation height is high, making it difficult to add ingredients, and when it is turned over in a tilted position with the front downwards, the lower edge of the opening of the cooking vessel (A) becomes too low, making it difficult to remove ingredients from the cooking vessel in a comfortable working position.

[0008] Furthermore, since the cooking vessel (A), its rotation drive mechanism (B), and the entire IH heater (C) are raised and tipped around the horizontal axis of the pivot shafts (4a) and (4b), not only is the load at the time of tipping excessive, but it is also difficult to ensure waterproofing of the IH heating coil of the IH heater (C) or to perform maintenance without any restrictions.

[0009] On the other hand, according to the configuration of the invention described in Patent Document 2, the bottom surface (5a) of the food-containing pot (5) is flat, thereby solving the first problem described for the invention of Patent Document 1, and since the pot horizontal rotation drive mechanism (D) consists of a rotating support shaft (23) that hangs down integrally from the center of the bottom surface of the food-containing pot (5) and a drive motor (24) that is connected to it, it can be said that the second and third problems described for the invention of Patent Document 1 are almost solved.

[0010] However, the rotating support shaft (23) of the food-containing pot (5) passes through the IH frame (6) of the cooking pot (T) that holds the pot (5) and the pot support frame (9), and hangs down to the inside of the pot bottom cover (12). Since the IH heater (H) is stored inside the IH frame (6), the existence of the rotating support shaft (23) significantly restricts the degree of freedom in the arrangement layout of the IH heating coils (7), (8a), and (8b), adjustments to prevent uneven heating, maintenance, and so on. This becomes noticeable when it becomes necessary to significantly increase the IH heating capacity, for example, from 25 kW to 45 kW.

[0011] Furthermore, the central induction heating coil (7) must be manufactured as a special, expensive, dedicated item different from the peripheral induction heating coils (8a) and (8b). In addition, the space between the bearing boss (22) of the rotating support shaft (23) in the food storage pot (5) and the top plate (lid plate / insulating cover) of the induction frame (6) in which the induction heater (H) is built cannot be completely sealed, which creates the problem that the induction heating coils (7), (8a), and (8b) cannot be made waterproof or dustproof.

[0012] Furthermore, in the configuration of the invention described in Patent Document 2, a beam-shaped pot support frame (9) supporting a food storage pot (5) is fixed horizontally at the bottom of an IH frame (6) incorporating an IH heater (H), and the food storage pot (5) and the IH heater (H) that heats its bottom surface (5a) are both pivotally attached to a corresponding pair of left and right mounting mechanisms (1L) (1R) so that they can rotate up and down (so that they can tip over) by a pair of pot-tipping arms (10L) (10R) and pot-tipping shafts (11L) (11R) that are aligned on a diameter line that crosses the center of the food storage pot (5) from both ends of the pot support frame (9). Therefore, there is the fourth problem described above for the invention of Patent Document 1, and this has not yet been solved.

[0013] Furthermore, in the configuration of the invention described in Patent Document 2, an operating mechanism (C) is installed that raises the agitator drive box (2) mounted on the installation housing (1L) from the installation housing (1L), but this only raises the agitator drive box (2) by a certain angle (α) (for example, 60 degrees) around the horizontal axis of the pivot shaft (4) in order to remove the food agitating blades (A1) (A2) and scraping blade (50) from the top opening of the food storage pot (5), and is not configured to further retract the agitator drive box (2) radially (horizontally) from the top opening of the food storage pot (5).

[0014] The agitator drive box (2) still remains, so to speak, above the food storage pot (5), and as a result of its raised height, it is difficult to remove, attach, or replace the blades (A1), (A2), (50). This problem becomes more pronounced as the opening diameter of the food storage pot (5) becomes larger. In addition, the agitator drive box (2), which has been raised by the above-mentioned certain angle (α), protrudes significantly laterally from its installation cabinet (1L), unnecessarily increasing the installation space and potentially creating a danger during work. [Means for solving the problem]

[0015] The present invention aims to fundamentally solve such problems, and to achieve this aim, claim 1 provides a conductive food storage pot with a flat bottom that is interposed between a stirring side installation box and an operation side installation box that face each other,

[0016] An electromagnetic induction heater for heating the pot is fixed horizontally between the left and right mounting boxes in a horizontal installation state that maintains a certain gap between the bottom of the food-containing pot and the heater;

[0017] a pot rotation drive motor fixed to a ring-shaped pot holder surrounding the body of the food storage pot;

[0018] In order to stably support the body surface of the food-containing pot, the pot support stand is provided with a plurality of pot support rollers each rotatably supported in a radially symmetrical distribution pattern,

[0019] The pot rotation drive motor has an output shaft that stands upright, and the radial drive arm that acts as the drive wheel is fitted and integrated into it.

[0020] A wave-shaped engaging flange, which becomes a driven wheel corresponding to the driving wheel, is integrally protruded from the body surface of the food storage pot,

[0021] The free-wheeling roller supported on the tip of the drive arm is engaged with the arc groove of the engagement flange, and the food-containing pot can be rotated by the pot rotation drive motor.

[0022] A pair of left and right mounting legs for both installation boxes are extended from the pot holder to a position eccentric to one side by a certain distance forward from a diameter line crossing the center of the food storage pot in the left-right direction,

[0023] The pot holder is pivotally attached to both mounting boxes so as to be freely rotatable up and down by a pair of left and right rotating shafts each extending parallel to the diameter line from the mounting legs, and the food-containing pot can be raised and turned over from the rear around the horizontal axis of both rotating shafts on the pot holder.

[0024] In claim 2, a plurality of roller mounting brackets are erected from the base frame of the pot holder in a radially symmetrical distribution pattern.

[0025] The unit consists of two types of rollers: the first pot support roller, which supports the reinforcing stays that extend from the body of the food storage pot from below, and the second pot support roller, which restrains the reinforcing bands wrapped around the body of the food storage pot from the side.

[0026] The first pot support roller is supported by a horizontal roller pin and the second pot support roller is supported by a vertical roller pin on each of the roller mounting brackets, both of which are freely rotatable.

[0027] Claim 3 is characterized in that the first pot support roller and the second pot support roller are completely covered by a ring-shaped safety cover attached and fixed to a reinforcing stay extending from the body of the food-containing pot.

[0028] In claim 4, a rotating lever that integrally projects from a rotating support shaft that is pivotally attached to the operation side installation box of the mounting leg of the pot holder, and a piston rod of a pot tipping operating cylinder that is built into the operation side installation box are pivotally connected inside the installation box,

[0029] Similarly, the rotational angle position of the sensor detection plate that protrudes integrally from the rotating support shaft pivotally attached to the stirring side installation box on the mounting leg of the pot holder is detected by a corresponding proximity switch installed inside the stirring side installation box.

[0030] In claim 5, the upper and lower ends of the lifting shaft supporting the mixer drive case in which the rotation drive motor for the food mixing blades is built-in are inserted into the drive case and the mixing side installation box so that they can only be raised and lowered,

[0031] The lifting shaft is raised and lowered by a certain stroke by a mixer lifting actuation cylinder installed inside the mixing side installation box, up to a floating height at which the mixing blades of the ingredients are pulled out from the upper surface of the opening of the ingredients containing pot,

[0032] The agitator drive case, which has risen from the agitation-side installation box to the floating height, is then retracted radially from the upper surface of the opening of the food-containing pot by rotating a worm that engages with a worm wheel that is fitted and integrated into the upper end of the lifting shaft using an agitator rotation drive motor that is built into the drive case.

[0033] The agitator drive case is characterized in that it is set to rotate forward by a fixed angle around the vertical axis of the lifting shaft.

[0034] In claim 6, the lifting slider, which is fitted and integrated with the lower end of the lifting shaft, is raised and lowered linearly along a pair of front and rear lifting guide supports that are parallel to the lifting shaft that stands vertically inside the mixing side installation box, and

[0035] The upper and lower limit positions of the elevation detection plate attached and integrated to the elevation slider are detected by a pair of upper and lower proximity switches installed corresponding to a sensor support that is parallel to the elevation guide support.

[0036] In claim 7, a pair of upper and lower sensor detection plates are attached and fixed to the mid-height position of the lifting shaft inserted into the inside of the agitator drive case and erected vertically,

[0037] A pair of upper and lower proximity switches for detecting the rotation angle position of each sensor detection plate are installed inside the agitator drive case,

[0038] The target rotation angle position of the agitator drive case is determined by either the upper or lower proximity switch.

[0039] In claim 8, a stopper pin is attached and fixed to either the bottom surface of the agitator drive case supported by the lifting shaft or the top surface of the agitator side installation box facing it, and a receiving socket for the stopper pin is correspondingly installed on the remaining other,

[0040] When the agitator drive case is lowered to the lowest position, a stopper pin is inserted into and fitted into the receiving socket, thereby preventing the agitator drive case from rotating around the vertical axis of the lifting shaft.

[0041] In claim 9, a rotary drive motor for the first agitating blade, which is used alternatively, and a rotary drive motor for the second agitating blade, which is different from the first agitating blade, are attached and fixed to the lower and upper parts of the agitator drive case, respectively;

[0042] The rotation axis of the first stirring blade rotated by the rotation drive motor for the first stirring blade is an inclined rotation axis that intersects with the flat bottom surface of the food-containing pot at an acute angle,

[0043] The rotation axis of the second stirring blade rotated by the second stirring blade rotation drive motor is also set to a vertical rotation axis perpendicular to the flat bottom surface of the food storage pot,

[0044] The stirring area of ​​the ingredients by the first stirring blade and the stirring area of ​​the ingredients by the second stirring blade are limited to the eccentric portion that occupies approximately the same half of the ingredients storage pot,

[0045] The remaining part of the food-containing pot is entirely covered with a pot lid attached to the pot holder.

[0046] In claim 10, the positioning frame piece is partially extended rearward from the pot holder along a longitudinal diameter line perpendicular to the transverse diameter line of the food-containing pot;

[0047] A pot holder stopper with an adjustable vertical height is hung vertically from the middle of a horizontal base bar fixed between the left and right sides of the stirring side installation box and the operation side installation box.

[0048] The pot holder stopper receives the positioning frame piece from below, so that the flat bottom surface of the food-containing pot suspended by the pot support rollers of the pot holder is always placed horizontally parallel to the electromagnetic induction heater, ensuring a certain gap.

[0049] In claim 11, a coil movement base having a plurality of movement guide long holes formed therethrough in an arrangement extending parallel to the front-rear direction is horizontally fixed and traversed inside an electromagnetic induction heater housing case covered with a top plate that also serves as a heat insulating cover,

[0050] A plurality of electromagnetic wave rectifying plates are attached to the upper surface of the coil moving base, and a plurality of identical screw seat plates are attached to the lower surface thereof, by a plurality of mounting position adjusting bolts which are passed through the movement guide elongated holes from above,

[0051] The electromagnetic induction heating coils are all installed on the upper surfaces of horizontal coil bases fixedly supported within frames having a U-shaped cross section in each of the electromagnetic wave rectifying plates, and the mounting positions of the electromagnetic induction heating coils are made changeable and adjustable along the elongated movement guide holes of the coil movement base.

[0052] In claim 12, the pot tipping operating cylinder built into the operation side installation box and the agitator lifting operating cylinder built into the agitation side installation box are both hydraulic cylinders,

[0053] A common hydraulic pump unit that pumps hydraulic oil to both hydraulic cylinders is installed inside one of the installation boxes,

[0054] In order to connect the operation side installation box and the stirring side installation box, the connection pipes between the hydraulic pump unit and both hydraulic cylinders are passed through a wiring passage fixed horizontally between the left and right sides of the both installation boxes, together with the connection wiring between the electromagnetic induction heating coil in the electromagnetic induction heater and its heating inverter. [Effects of the Invention]

[0055] According to the above configuration of claim 1, there is an effect that the problems of the prior art mentioned at the beginning can be completely solved.

[0056] In other words, the mounting legs of the pot holder for the stirring side mounting box and the operating side mounting box are not on the diameter line that crosses the center of the food storage pot from side to side in the left-right direction, but are positioned eccentrically a certain distance forward from this line, and the pot holder for the food storage pot is pivoted to the two mounting boxes so that it can rotate up and down freely by means of a rotating shaft that extends parallel to the cross diameter line from the pair of left and right mounting legs, and the food storage pot is raised and tilted from the rear around the horizontal axis of the two rotating shafts.This, combined with the fact that the heat source (IH heater) and pot rotation drive mechanism are not attached and integrated into the bottom of the food storage pot, means that the food storage pot can be installed at a low height when in a horizontal position, allowing even short workers to easily add ingredients, and when the pot is tilted down at the front, the lower edge of the opening is high, so there is no need to uncomfortable bend over to remove ingredients after cooking, which improves workability.

[0057] Furthermore, unlike conventional technology, there is no rotating shaft hanging down from the centre of the bottom of the food storage pot, and the IH heater and pot rotation drive mechanism are not raised and tipped together with the food storage pot. The food storage pot, which is supported by the pot holder, and the IH heater that heats its bottom are physically separated and are installed horizontally with a certain gap between them, which not only improves the waterproof and dustproof properties of the IH heater, but also means that by raising and tipping the food storage pot from the rear, the top plate of the IH heater can be removed and the entire IH heating coil can be seen, which has the effect of allowing the heating coil's mounting position to be changed, adjusted, and maintained conveniently without any restrictions.

[0058] Furthermore, the ring-shaped pot holder has multiple pot support rollers supported on it in a radially symmetrical distribution, and the body of the food-containing pot is supported by these freely rotatable pot support rollers, so that the rotation of the food-containing pot is always stable and smooth.

[0059] Furthermore, the radial drive arm (drive wheel) on the output shaft of the pot rotation drive motor fixedly supported on the pot holder and the wavy engagement flange (driven wheel) that protrudes integrally from the body surface of the food storage pot are engaged via a free-wheeling roller, so compared to the rotation drive mechanism consisting of the meshing of a chain and a sprocket wheel as in conventional technology, lubricating oil or grease, which can become foreign matter for food, is not required and there is no risk of them getting mixed into the inside of the food storage pot.

[0060] In particular, if the configuration of claim 5 is adopted, the lifting shaft of the agitator drive case, which has a built-in rotary drive motor for the food stirring blades, is raised and lowered in a straight line by a fixed stroke by an agitator lifting operating cylinder built into the agitator side installation box.After the agitator blades rise to a height position where they will be pulled out from the top opening of the food storage pot, the agitator rotation drive motor built into the drive case rotates the agitator drive case forward by a fixed angle around the vertical axis of the lifting shaft through a meshing rotation mechanism of a worm and worm wheel, and causes it to retreat radially (horizontally) from the top opening of the food storage pot.As a result, the lifting and rotating mechanism does not protrude significantly laterally from the agitator side installation box, and the installation space can be reduced to the minimum necessary.In addition, since it rotates only forward, it has the effect of making it easy to attach, detach, and replace the agitator blades without any danger. [Brief explanation of the drawings]

[0061] [Figure 1] 1 is a schematic perspective view showing an overall food mixer for stir-fry cooking according to a preferred embodiment of the present invention. [Figure 2] 2 is a schematic perspective view of the foodstuff container of FIG. 1 in an upside-down state. FIG. [Figure 3] FIG. 3 is a schematic plan view of FIG. 2. [Figure 4] FIG. 2 is a front view of the food mixer. [Figure 5] FIG. 5 is a plan view of FIG. [Figure 6] FIG. 5 is a right side view of FIG. 4, showing the agitator drive case in an ascending state. [Figure 7] FIG. 5 is a left side view of the same in FIG. [Figure 8] 4 with both installation boxes and the agitator drive case cut away. FIG. [Figure 9] This is an enlarged front view showing the pot holder for the food-containing pot and the IH heater case cut away. [Figure 10] 5, with both installation boxes and the agitator drive case cut away. FIG. [Figure 11] 11 is an enlarged plan view showing the food container pot and pot holder of FIG. 10 removed. FIG. [Figure 12] This is a plan view showing the food container pot. [Figure 13] FIG. 13 is a bottom view of FIG. 12. [Figure 14] FIG. 13 is a central cross-sectional view of FIG. 12. [Figure 15] FIG. 15 is a partially enlarged view of FIG. [Figure 16] FIG. 2 is a plan view showing the rotational drive relationship of the food container pot. [Figure 17] This is a plan view showing the pot holder. [Figure 18] FIG. 18 is a front view of FIG. 17. [Figure 19] FIG. 18 is a left side view of FIG. 17. [Figure 20] FIG. 18 is a right side view of FIG. 17. [Figure 21] 10 is a plan view showing the state in which the food-containing pot is supported by the pot holder. FIG. [Figure 22] FIG. 22 is a side cross-sectional view of FIG. 21. [Figure 23] FIG. 23 is an enlarged view showing the drive wheels extracted from FIG. 22. [Figure 24] FIG. 23 is a partially enlarged view of FIG. 22, showing the assembled unit state of the pot support rollers. [Figure 25] This is a side view of the action of lifting and tipping the food container from the rear. [Figure 26] FIG. 4 is a side cross-sectional view showing the inside of the operation-side installation box. [Figure 27] FIG. 27 is a partially cutaway front view of FIG. 26. [Figure 28] FIG. 10 is a side cross-sectional view showing the interior of the agitator side installation box and the agitator drive case in the raised operating state. [Figure 29] FIG. 29 is a front view showing the agitation side installation box of FIG. 28 with a part cut away. [Figure 30] This is a plan view showing the IH heater of the food container pot. [Figure 31] FIG. 31 is a front view of FIG. 30. [Figure 32] FIG. 32 is a partially enlarged view of FIG. 31. [Figure 33] This is a side cross-sectional view showing the bottom of the rotating food container and its relationship to the IH heater. [Figure 34] 29 is a partially enlarged view of FIG. 28 showing the agitator lifting and lowering actuation mechanism. [Figure 35] FIG. 35 is a plan view of FIG. 34. [Figure 36] FIG. 10 is a partially enlarged view of FIG. [Figure 37] 10 is a partially enlarged view of the same FIG. 9, showing the agitator rotation drive mechanism. [Figure 38] FIG. 38 is a plan view of FIG. 37. [Figure 39] FIG. 2 is a schematic front view showing a first agitating blade. [Figure 40] FIG. 2 is a schematic front view showing a second agitating blade. [Figure 41] A plan view showing the state in which the pot lid is placed on the food containing pot. [Figure 42] FIG. 42 is a side view of FIG. 41. DETAILED DESCRIPTION OF THE INVENTION

[0062] A preferred embodiment of the present invention will be described in detail below with reference to the drawings. Figures 1 to 11 show the entirety of a commercial food mixer that is primarily suitable for stir-frying dishes such as fried rice and vegetables. (1L) and (1R) are a pair of installation boxes, one for the mixing side and the other for the operation side, which secure the mixer to the work floor. An agitator drive case (2) is mounted on the relatively short mixing side installation box (1L), while an operation panel (3) is installed on the front face of the relatively tall operation side installation box (1R). A required number of height-adjustable installation legs (4) and a load cell (weight scale) (5) for measuring the amount of ingredients added are attached to the bottom of both installation boxes (1L) and (1R).

[0063] (T) is a large food storage pot (total capacity: approximately 307 liters) located between the opposing left and right mounting boxes (1L) and (1R). It is preferably made of a three-layer clad material of stainless steel and aluminum (inner: SUS304, middle: aluminum, outer: SUS430) and has a roughly U-shaped cross section with a fixed diameter (e.g., 1100 mm) and depth (e.g., 325 mm) as shown in Figures 12 to 15. The body (6) is made of austenitic stainless steel (SUS304) and the welded bottom (7) is made of ferritic stainless steel (SUS430), forming a flat surface. Furthermore, the bottom (7) forms a thick heat storage layer. However, as long as the food storage pot (T) has a flat, conductive bottom (7), it may also be made of a two-layer clad material of stainless steel (SUS304) and iron (SS400).

[0064] A ring-shaped reinforcing stay (8) with an L-shaped cross section is welded to the upper part of the body surface (6) of the food storage pot (T), and a ring-shaped reinforcing band (9) is welded to the middle part. A plurality of (e.g., eight) horizontal plate pieces (8a) extending from the reinforcing stay (8) in a radially symmetrical distribution pattern are provided with screw holes (10) for attaching a safety cover (described later).

[0065] Similarly, a plurality of (e.g., eight) base flanges (11) for mounting driven wheels protrude integrally from the lower portion of the body surface (6) of the food-containing pot (T) in a radially symmetrical distribution, and ring-shaped engaging flanges (12) that function as driven wheels are attached and fixed to the underside of the base flanges (11) with bolts (13). The outer periphery of the engaging flanges (12) is cut out in a wave-like shape in plan view as shown in Figure 16, and the tips of radial drive arms that serve as drive wheels, described below, are set to engage with a plurality of arc-shaped grooves (12a) that are, so to speak, scattered at regular intervals.

[0066] (M) is a ring-shaped pot holder that surrounds the body (6) of the food-containing pot (T), and as is clear from Figures 17 to 24, it comprises a frame body (14) that is shaped like an inverted L in cross section, a pair of left and right mounting legs (15L) (15R) that extend from the frame body (14) to an eccentric position that is a certain distance (E) forward from a diameter line (OO) that crosses the center of the food-containing pot (T) in the left-right direction, and a motor support frame (16) that also extends from the frame body (14) to an eccentric position that is diagonally backward from the diameter line (OO) of the food-containing pot (T), and a pot rotation drive motor (geared motor) (17) is attached and fixed within the frame of the motor support frame (16) via an attachment bracket (18).

[0067] In this case, the output shaft (17a) of the pot rotation drive motor (17) extends vertically upward, and the bosses (19a) of the radial drive arms (19) that serve as the drive wheels are fitted and integrated onto it. Multiple (e.g., six) free-wheeling rollers (20) axially supported on the radial tips of the drive arms (19) engage with arc-shaped grooves (12a) of the engagement flanges (12) attached as driven wheels to the body surface (6) of the food-containing pot (T). This allows the pot rotation drive motor (17) to rotate the food-containing pot (T) around its vertical centerline. The rotation speed is, for example, 8 to 10 rpm, and can be adjusted to a speed suitable for the type of food and cooking method.

[0068] In addition, a plurality of (e.g., eight) roller mounting brackets (21) are integrally erected in a radially symmetrical distribution from the horizontal plate portion (14a) of the frame main body (14) of the pot holder (M), and a first pot support roller (23) is freely rotatably supported at the upper position of each roller mounting bracket (21) via a horizontal roller pin (22), which supports from below the reinforcing stay (8) extending from the corresponding upper position of the food storage pot (T). At the same time, a second pot support roller (25), also freely rotatably supported at the lower position of each roller mounting bracket (21) via a vertical roller pin (24), restrains from the side a reinforcing band (9) of a constant width wrapped around the corresponding middle position of the food storage pot (T), thereby stably supporting the body surface (6) of the food storage pot (T) and allowing it to rotate smoothly.

[0069] In other words, a plurality of roller mounting brackets 21 are attached and fixed to the horizontal plate portion 14a of the frame body 14 by a plurality (for example, two) of bolts 26 (indicated by the screw holes in Figure 17) in an upright state so that they can be easily attached and replaced, and two types of first and second pot support rollers 23, 25 are assembled together with each roller mounting bracket 21 to form a unit. Each of these two types of roller mounting brackets 21, which are pre-assembled as a unit, can then be easily and conveniently fixed to the frame body 14 of the pot holder M.

[0070] In this case, the first and second pot support rollers (23) and (25), each supported by a roller mounting bracket (21), are exposed and dangerous, and there is a risk of water or food debris getting in. Therefore, a ring-shaped safety cover (27) that covers all of these is fitted with mounting bolts (28) that are screwed into threaded holes (10) in the reinforcing stay (8) of the food storage pot (T). The engagement portion between the radial drive arm (19) of the pot rotation drive motor (17) and the engagement flange (12) of the food storage pot (T) is enclosed within the frame of the base frame body (14), which is an inverted L-shaped cross section of the ring-shaped pot holder (M), and therefore there is no danger of this happening.

[0071] Furthermore, the pair of left and right mounting legs (15L) (15R) of the pot holder (M) are extensions of the frame body (14) extending forward, forming an inverted L-shape in cross section, and horizontal pivot shafts (29L) (29R) extend outward from the vertical plate portions (15a) as shown in Figure 21, parallel to the diameter line (OO) of the food-containing pot (T).The pair of left and right pivot shafts (29L) (29R) are pivotally mounted to the mixing-side mounting box (1L) and the operating-side mounting box (1R) so that they can be rotated up and down freely.As a result, the food-containing pot (T) can be raised and tilted from the rear about the horizontal axis (X-X) of the pivot shafts (29L) (29R) of the pot holder (M) as shown in Figures 1 to 2, 3, 6, and 25, resulting in a tilted state with the front downward. (30) is a radiation thermometer that measures the heating temperature of the bottom of the pot.

[0072] The protruding ends of the pivot shafts (29L) (29R) flange-joined to the mounting legs (15L) (15R) of the pot holder (M) are rotatably inserted into the walls of the mixing-side installation box (1L) and the operation-side installation box (1R) via bearings (31), bushings, seal plates, etc., as shown in Figures 8, 10, and 11. A pivot lever (32) protruding from the end of the pivot shaft (29R) inserted into the operation-side installation box (1R) is pivotally connected to a piston rod (34) of a pot-tipping operating cylinder (hydraulic cylinder) (33) built into the installation box (1R), as shown in Figures 26 and 27. Therefore, by moving the piston rod (34) back and forth, the food-containing pot (T) can be raised and tipped from the rear via the pivot shafts (29L) (29R). The angle of inversion (α) is, for example, approximately 95 degrees.

[0073] On the other hand, as shown in Figures 10, 11, 28 and 29, a sensor detection plate (35) protrudes integrally from the tip of the rotating support shaft (29L) inserted into the stirring side installation box (1L), and the rotation angle position of the sensor detection plate (35) is detected by a proximity switch (position detection sensor) (36) correspondingly installed in the installation box (1L), making it possible to determine whether the pot holder (M) and, by extension, the food storage pot (T) are in a horizontal position or in an upturned position when raised from behind.

[0074] (37) is a positioning frame piece that partially projects rearward from the base frame body (14) of the pot holder (M) along what is called the longitudinal diameter line (YY) perpendicular to the transverse diameter line (OO) of the food-containing pot (T), and a pot holder stopper (38) that receives this from below is erected at a certain height from the corresponding intermediate portion of a horizontal base bar (39) that bridges the left and right sides of the two mounting boxes (1L) and (1R) as shown in Figures 10 and 11. (40) is a bolt that secures the pot holder stopper (38) to the base bar (39).

[0075] Moreover, this is made up of a screw fastener that can fine-tune the vertical height, so that the flat bottom surface (7) of the food-storing pot (T) suspended from the pot holder (M) and its heating source, the electromagnetic induction heater (IH heater) (H), are always parallel and horizontally installed, ensuring an appropriate constant gap (S). The constant gap (S) is, for example, 10 to 15 mm, preferably 13 mm, and is used as a passage for air with low thermal conductivity to prevent reflected heat from the bottom of the pot from propagating to the insulating cover (top plate) described below.

[0076] In other words, the IH heater (H) is installed horizontally between the left and right sides of the stirring side installation box (1L) and the operation side installation box (1R) in a horizontal installation state that maintains the above-mentioned constant gap (S) with the flat bottom surface (7) of the food storage pot (T) as shown in Figure 9, and is installed in a fixed state that is physically separated from the above-mentioned pot holder (M) and food storage pot (T).

[0077] The IH heater (H) is composed of multiple electromagnetic induction heating coils (IH heating coils) (41a) (41b) and has an IH heating capacity of, for example, 45 kW. In the illustrated embodiment, four 10 kW IH heating coils (41a) and one 5 kW IH heating coil (41b) are arranged in parallel in a layout as shown in Figures 11, 30, and 31, allowing the entire bottom surface (7) of a food storage pot (T) with a total capacity of approximately 307 liters to be heated uniformly.

[0078] (42) is a generally circular heater storage case (container) slightly larger in diameter than the flat bottom surface (7) of the food storage pot (T), has an approximately U-shaped cross section, and the upper surface of its opening is covered with a top plate that also serves as an insulating cover (43), while the left and right ends of a wiring passage (44) welded to the bottom surface of the storage case (42) are attached and fixed to the stirring side installation box (1L) and the operation side installation box (1R) in a state of internal communication, respectively.

[0079] The insulating cover (43) is made of thermosetting resin reinforced with glass fiber and prevents the radiant heat emitted from the bottom surface (7) of the food storage pot (T) due to electromagnetic induction heating from being transmitted to the IH heating coils (41a) (41b) of the IH heater (H) or the IH heating inverter (high frequency power supply) (45). The insulating cover (43) is sealed watertight around the opening periphery of the heater storage case (42) with heat-resistant silicone caulking (not shown).

[0080] Inside the heater housing case (42), a single coil moving base (46) is fixed and supported like a partition shelf via a plurality of spacers (47) and flat head bolts (48). Furthermore, a plurality of electromagnetic wave rectifying plates (49) with a U-shaped cross section (four plates corresponding to the above-mentioned 10 kW IH heating coil) are attached to the upper surface of the coil moving base (46), and the same number (four plates) of screw seat plates (50) are attached to the lower surface of the coil moving base (46) by a plurality of mounting position adjustment bolts (51) (for example, four plates) common to both plates (49) and (50).

[0081] As is clear from Figures 30 to 33, a single relatively large coil moving base (46) serves as a common base plate, so to speak, and a number of smaller rectangular electromagnetic wave rectifying plates (49) and screw seat plates (50) are attached and fixed together from above and below to the coil moving base (46) by means of four of the above-mentioned adjustment bolts (51) that are screwed into the screw seat plates (50) at the corners of the rectangle.

[0082] Moreover, in this case, the movement guide elongated holes (52) that receive the multiple (four) mounting position adjustment bolts (51) are formed through the coil movement base (46) in an arrangement that extends parallel to the front-to-rear direction as shown in Figure 30.

[0083] Within the frame of each electromagnetic wave rectifying plate (49) having a U-shaped cross section, one coil base (55) is fixedly supported horizontally via one center support (53a), multiple (four) corner supports (53b) and countersunk screws (54), and the IH heating coil (41a) is fixedly installed in a spiral shape on the top surface of the coil base (55).

[0084] Therefore, by appropriately moving each of the electromagnetic wave rectifying plates (49) and the screw seat plates (50) in the forward and backward directions along the elongated movement guide holes (52) opening in the coil movement base (46), the mounting positions of the four IH heating coils (41a) arranged in parallel to provide a heating capacity of 10 kW can be easily changed and adjusted.

[0085] The four 10 kW IH heating coils (41 a) are custom-made and all have the same configuration and shape. A required number of heat dissipation fans (56) (for example, two fans) are installed in parallel inside the heater housing case (42), particularly below the coil moving base (46).

[0086] In contrast, the single IH heating coil (41b) having a heating capacity of 5 kW is installed in the remaining part of the heater housing case (42) as a general-purpose (commercially available) unit assembled together with its low-power heating inverter (high-frequency power supply) (57) and heat dissipation fan (58). This may be fixed in place as a spare, or its installation may be omitted and the IH heating capacity of the food storage pot (T) may be set at 40 kW.

[0087] In any case, the food-containing pot (T) is rotated around its own vertical centerline by the pot rotation drive motor (17), and as can be seen from the arrangement layout of the IH heating coils (41a) (41b) shown in the plan view of Figure 30, as long as the IH heating coils (41a) (41b) of the IH heater (H) are distributed at multiple positions with different pot rotation radii, the entire flat bottom surface (7) of the food-containing pot (T) can be heated uniformly and efficiently.

[0088] Furthermore, the rotating food-containing pot (T) and the IH heater (H) that heats its flat bottom surface (7) are physically separated, maintaining a certain gap (S). Therefore, by using the pot-tilting actuation cylinder (33) to lift and tilt the food-containing pot (T) from behind about the horizontal axis (XX) of the pivoting support shafts (29L) and (29R) of the pot holder (M), the top plate (insulating cover) (43) of the heater housing case (42) can be removed from above, as shown in Figures 3 and 11, and the IH heating coils (41a) and (41b) of the IH heater (H) inside it can be fully opened. As a result, the entire system can be viewed without any restrictions, and the IH heating coils (41a) and (41b) can be easily and conveniently repositioned, adjusted, or maintained without any restrictions, preventing uneven heating of food and electrical leakage in the IH heater (H).

[0089] The agitator drive case (2) mentioned earlier is supported by a single lifting shaft (60) that stands vertically from the agitation side installation box (1L), and is configured to move up and down together with the lifting shaft (60) by a fixed stroke (L) (for example, 450 mm), and also to rotate (change direction) forward by a fixed angle (β) (for example, 105 degrees) around the vertical axis (ZZ) of the lifting shaft (60) so as to retreat radially (horizontally) from the top opening of the food storage pot (T).

[0090] That is, as is clear from Figures 28, 29 and Figures 34 to 38, the lower end of the lifting shaft (60) is inserted into the agitator side installation box (1L) via the lifting bearing (61) so that it can only move up and down in a straight line, while the upper end of the lifting shaft (60) inserted into the agitator drive case (2) is supported by the bottom surface of the agitator drive case (2) via the flange pillow (62) so that it can rotate (turn).

[0091] (63) is a long, thin, flat lift slider that is horizontally fitted onto and integrated with the lower end of the lift shaft (60), and its front and rear ends are fitted into lift guide posts (linear shafts) (65) via a pair of linear bushings (64). The pair of front and rear lift guide posts (65) naturally stand vertically parallel to the lift shaft (60), and both of their upper and lower ends are attached and fixed to the agitator-side installation box (1L).

[0092] Furthermore, (66) is an agitator lifting operating cylinder (hydraulic cylinder) that raises and lowers the lifting shaft (60) and, by extension, the agitator drive case (2), and is erected inside the agitator side installation box (1L). A lifting sprocket (69) is rotatably supported on the cylinder tip fitting or piston rod (67) by a horizontal through pin (68).

[0093] A chain (70) is wound around the lifting sprocket (69) in an inverted U-turn shape, and one lower end of the chain is connected and fixed to the lifting slider (63) via a chain bolt (71a), while the other lower end is attached and fixed to the agitator-side installation box (1L) via a chain bolt (71b). Therefore, when the lifting sprocket (69) is raised by the agitator lifting actuation cylinder (66), the lifting shaft (60) is raised via the chain (70), and the agitator drive case (2) supported thereby is also raised.

[0094] In this case, a lift detection plate (72) is attached and fixed to the front end of the lift slider (63), and a pair of upper and lower proximity switches (position detection sensors) (73a) and (73b) that detect the upper and lower limit positions of the lift detection plate (72) are installed corresponding to a sensor support (74) that stands upright adjacent to the lift guide support (65).

[0095] The upper limit position of the lift detection plate (72) detected by the proximity switch (73a) indicates the height to which the agitator drive case (2) supported by the lift shaft (60) is raised, and is the height to which the agitator blade (described below) extending from the agitator drive case (2) rises until it is pulled out from the top surface of the opening of the food storage pot (T).

[0096] A hydraulic pump unit (75) is also installed in the rear of the agitator-side installation box (1L). This pumps hydraulic oil not only to the agitator lifting / lowering operating cylinder (hydraulic cylinder) (66) but also to the pot tipping operating cylinder (hydraulic cylinder) (33) in the operator-side installation box (1R). The necessary piping (hoses) (not shown) connecting the two operating cylinders (33) and (66) is routed through the wiring passage (44) on the bottom of the heater housing case (42), along with the electrical wiring (not shown) connecting the induction heating coils (41a) and (41b) of the induction heater (H) to their corresponding heating inverters (45) and (57). However, the hydraulic pump unit (75) can also be installed inside the operator-side installation box (1R) without any problems.

[0097] Furthermore, inside the agitator drive case (2), there are stored a first agitator blade rotation drive motor (geared motor) (77) that drives the inclined rotation shaft (76) of the first agitator blade (A1) described later, a second agitator blade rotation drive motor (geared motor) (79) that drives the vertical rotation shaft (78) of the second agitator blade (A2), which is different from the first agitator blade (A1), and an agitator rotation drive motor (geared motor) (80) as shown in Figure 28 that rotates (changes direction) the agitator drive case (2) itself.

[0098] Reference numeral (81) denotes a mounting base for the agitator rotation drive motor (80) relative to the agitator drive case (2), and the rotation drive motor (80) is mounted to the mounting base (81) so that the installation height can be adjusted freely using parallel elongated guide holes (82) opening into a pair of protruding flanges and a required number of fixing bolts (83). A drive sprocket (84) is fitted integrally onto the output shaft (80a) of the rotation drive motor (80).

[0099] (85) is a horizontal flange that protrudes inward integrally from the mid-height position of the agitator drive case (2), and the flange pillow (86) and thrust bearing (87) attached and fixed here, in combination with the flange pillow (62) fixedly installed on the bottom surface of the agitator drive case (2) as shown in Figure 37, the drive case (2) and the lifting shaft (60) are fitted together so that they can rotate freely relative to each other, and a stable bearing state is maintained at the two levels, upper and lower.

[0100] Also, (88) is a worm wheel fitted and integrated into the upper end of the lifting shaft (60), and (89) is a worm shaft extending parallel to the output shaft (80a) of the agitator rotation drive motor (80), which is horizontally suspended along the front-to-rear direction within the agitator drive case (2) and is rotatably supported by a pair of flange pillows (90) at both the front and rear ends.

[0101] Moreover, in addition to the worm (91) that meshes with the worm wheel (88), a driven sprocket (92) that corresponds to the drive sprocket (84) is also fitted and integrated onto the rotating worm shaft (89), and an endless transmission chain (93) is wound between the drive sprocket (84) and the driven sprocket (92).

[0102] Therefore, as shown in Figures 5, 10, 37 and 38, the agitator rotation drive motor (80) rotates the worm (91) and the worm wheel (88) in mesh with each other, and the agitator drive case (2) can be rotated (changed direction) forward by a certain angle (β) (105 degrees as exemplified above) around the vertical axis (ZZ) of the lifting shaft (60) that supports it.

[0103] In this case, a pair of upper and lower sensor detection plates (94a) and (94b) are attached and fixed to the mid-height position of the lifting shaft (60) inserted into the agitator drive case (2), and a pair of upper and lower proximity switches (position detection sensors) (95a) and (95b) are attached and fixed to the mid-height positions of the agitator drive case (2) corresponding to these, for detecting the rotational (rotational) angle positions of the sensor detection plates (94a) and (94b).

[0104] If it is assumed that one of the upper or lower proximity switches (95a) determines that the rotation angle (β) of the agitator drive case (2) is zero degrees based on the detection result of the corresponding sensor detection plate (94a), meaning that the drive case (2) is stopped directly above the food storage pot (T), then the remaining proximity switch (95b) determines that the agitator drive case (2) has reached the target constant rotation angle (β) (the above-mentioned 105 degrees) based on the detection result of the corresponding other sensor detection plate (94b), and determines that the drive case (2) is retracted a constant angle (β) forward from the top opening of the food storage pot (T).

[0105] (96) is a stopper pin fixed in a vertical state to the top surface of the agitator side installation box (1L), and when the agitator drive case (2) descends to the lowest position, it is inserted into and fitted into a pin receiving socket (97) correspondingly installed on the bottom surface of the drive case (2), so that there is no risk of the agitator drive case (2) rotating around the vertical axis (ZZ) of its lifting shaft (60).

[0106] In other words, unless the agitator drive case (2) is first raised to its upper limit position by the lifting cylinder (66), the drive case (2) cannot be rotated (changed direction) by the rotation drive motor (80). Conversely, the stopper pin (96) may be fixed to the bottom surface of the drive case (2) and its pin receiving socket (97) may be correspondingly installed on the top surface of the installation box (1L).

[0107] The first agitating blade (A1) and the second agitating blade (A2) are used alternatively depending on the type of food material and its cooking method, and the rotary drive motor (77) for the first agitating blade is fixedly attached to the bottom of the agitator drive case (2) so that its drive shaft (98) is inclined at an acute, constant intersection angle (γ) (for example, 30 to 35 degrees) with the flat bottom surface (7) of the food material storage pot (T), and the inclined rotary shaft (76) of the first agitating blade (A1) is removably inserted into the tip of the drive shaft (98) using a connecting socket, crank boss, or other suitable connector (99) to form an integrated unit.

[0108] The first stirring blade (A1) is made up of multiple scooping blades that extend radially from an inclined rotating shaft (76) as shown in Figures 7 and 39, and rotates in a manner that describes a conical path as a whole, scooping up ingredients such as fried rice and vegetables and causing them to invert and drop. However, the lower tip of the inclined rotating shaft (76) reaches a position that almost reaches the center of the food-containing pot (T), and the stirring area of ​​the first stirring blade (A1) is limited to an eccentric portion that occupies about half of the pot's interior.

[0109] On the other hand, the rotary drive motor (79) for the second stirring blade is similarly mounted and fixed to the upper part of the agitator drive case (2) with its drive shaft (100) horizontal. A vertical main agitation shaft (102a) is connected to the tip of the drive shaft (100) via a bevel gear mechanism (101), and a vertical sub-agitation shaft (102b) revolves around the main shaft (102a) while rotating on its own axis. These extend from the agitator drive case (2) toward the eccentric part inside the food-containing pot (T).

[0110] The vertical rotation shaft (78) of the second stirring blade (A2), which is different from the first stirring blade (A1) and consists of two vertical blades arranged in a rotationally symmetrical manner as shown in Figure 40, is inserted and integrated into the tip of the sub-shaft (102b) using the same connector (99) so that it can be freely inserted and removed.The vertical rotation shaft (78) of the second stirring blade (A2) is perpendicular to the flat bottom surface (7) of the food-containing pot (T), but the stirring area caused by its rotation is also limited to an eccentric part that occupies about half of the pot, the same as that of the first stirring blade (A1).

[0111] (103) is a scraper stand attached and fixed to the motor support frame (16) of the pot holder (M), (104) is a horizontal scraper holding arm that extends from the upper end of the stand (103) to the upper surface of the opening of the food-containing pot (T), and a scraper (107) that scrapes food from the body surface (6) of the food-containing pot (T) is pivotally attached to a support rod (105) that hangs down from the tip of the extension via a hinge (106). The coil spring that presses the scraper (scraping blade) (107) against the body surface (6) of the food-containing pot (T) is not shown in the figure.

[0112] In addition, a contact-type wireless thermometer (109) is attached to the support rod (105) of the scraper (107) via a sensor bracket (108), which makes it possible to detect (measure) the heating temperature (product temperature) of the ingredients inside the ingredient storage pot (T).

[0113] Furthermore, (C) is a pot lid that is detachably fitted over the entire remaining portion (non-stirring area that is only subjected to the heating action of the ingredients) of the food-containing pot (T) excluding the stirring action area (eccentric part that occupies about half of the pot) of the first and second stirring blades (A1) (A2), and is made up of a pair of large and small main lids (110a) and sub-lids (110b) that are combined into an approximately crescent shape in a plan view as shown in Figure 41.

[0114] (111) is a lid mounting stand erected from the motor support frame (16) of the pot holder (M), and a plurality of (for example, two) lid latching pins (113) protrude upward from the arc-shaped edge of the lid support flange (112) that extends from its upper end toward the body surface (6) of the food-containing pot (T).

[0115] The same number (two) of lid mounting flanges (114) protrude from the corresponding arc-shaped edge of the main lid (110a), and key holes (115) opening into these flanges are engaged with the lid locking pins (113), thereby allowing the main lid (110a) of the pot lid (C) to be placed over the top opening of the food-storing pot (T).

[0116] On the other hand, a lid receiving stand (116) is erected from the mounting leg (15L) of the pot receiving stand (M), and a lid centering adjustment flange (117) extends from the upper end of the lid receiving stand (116) toward the body surface (6) of the food-containing pot (T), from the tip of which a lid opening / closing fulcrum pin (118) protrudes upward.

[0117] A lid mounting flange (119) correspondingly projects from the arc-shaped edge of the secondary lid (110b), and an insertion hole (120) opening into this flange is inserted onto the lid opening / closing fulcrum pin (118), allowing the secondary lid (110b) of the pot lid (C) to be opened and closed freely, and when closed, it remains continuous with the main lid (110a) as shown in Figures 41 and 42. By using such a pot lid (C) to cover the upper surface of the opening of the food-storing pot (T), it is possible to shorten the time it takes for food to heat up using induction heating.

[0118] In addition, (121) denotes a plurality of (for example, two) handles attached to each of the main cover (110a) and the sub-cover (110b), and (122) denotes a small, approximately circular relief notch provided in the main cover (110a), which contributes to the relief of the attachment point of the scraper (scraping blade) (107). [Explanation of symbols]

[0119] (1L)····Agitation side installation box (1R) Operation side installation box (2) Agitator drive case (6) Body (7) Bottom (8) Reinforcement stay (9) Reinforcement band (12) Engagement flange (driven wheel) (12a) Arc groove (14) Frame body (15L) Mounting legs (15R) Mounting legs (16) Motor support frame (17) Pot rotation drive motor (17a) Motor output shaft (19) Radial drive arm (drive wheel) (20) Idler roller (21) Roller mounting bracket (22) Horizontal roller pin (23) First pot support roller (24) Vertical roller pin (25) Second pot support roller (27) Safety cover (29L)...Rotation shaft (29R)...Rotation shaft (30)... Radiation thermometer (32) Rotating lever (33) Pot tipping cylinder (hydraulic cylinder) (34) Piston rod (35) Sensor detection plate (36) Proximity switch (37) Positioning frame piece (38) Pot holder stopper (39) Base bar (40) Fixing bolt (41a) IH heating coil (41b) IH heating coil (42) Heater housing case (container) (43) Insulation cover (top plate) (44)...Wiring passage (46) Coil moving base (49)...Electromagnetic wave rectifier plate (50) Screw seat plate (51) Mounting position adjustment bolt (52) Long guide hole (55) Coil base (60) Elevating shaft (61) Elevating bearing (63) Lift slider (65) Lifting guide support (66) Agitator lifting cylinder (hydraulic cylinder) (67) Cylinder end fitting (69) Lifting sprocket (70) Chien (72) Lift detection plate (73a) Proximity switch (73b) Proximity switch (74) Sensor support (75) Hydraulic pump unit (76) Inclined rotation axis (77) Rotational drive motor for first agitator blade (78) Vertical rotation axis (79) Rotational drive motor for second agitator blade (80) Agitator rotation drive motor (82) Elevation guide slot (83) Fixing bolt (84) Drive sprocket (87) Thrust bearing (88) Worm Wheel (89) Worm shaft (91) Worm (92) Driven sprocket (93) Transmission chain (94a) Sensor detection plate (94b) Sensor detection plate (95a) Proximity switch (95b) Proximity switch (96) Stopper pin (97) Pin-receiving socket (98) Drive shaft (100) Drive shaft (101) Bevel gear mechanism (102a) Stirring shaft (102b) Stirring shaft (107) Scraper (scraping blade) (109) Wireless Thermometer (110a) Main lid (110b)...Secondary lid (A1) First agitating blade (A2) Second agitating blade (C)····Pot lid (E)... Fixed distance (eccentricity) (H)...IH heater (M) Pot holder (OO) Transverse diameter line of the pot (S)...Constant gap (T)...Ingredient storage pot (XX) Horizontal axis of the pivot shaft (YY) Longitudinal diameter line of pot (ZZ) Vertical axis of the lifting shaft (α) Pot tipping angle (β) Rotation angle of the agitator drive case (γ) Intersection angle between the tilted rotation axis and the bottom of the pot

Claims

1. a conductive food storage pot with a flat bottom interposed between the stirring side installation box and the operation side installation box facing each other; An electromagnetic induction heater for heating the pot is fixed horizontally between the left and right mounting boxes in a horizontal installation state that maintains a certain gap between the bottom of the food-containing pot and the heater; a pot rotation drive motor fixed to a ring-shaped pot holder surrounding the body of the food storage pot; In order to stably support the body surface of the food-containing pot, the pot support stand is provided with a plurality of pot support rollers each rotatably supported in a radially symmetrical distribution pattern, A radial drive arm serving as a drive wheel is fitted and integrated onto the output shaft of the pot rotation drive motor, which stands vertically upward, while a wavy engagement flange serving as a driven wheel corresponding to the drive wheel is integrally extended from the body surface of the food storage pot, The free-wheeling roller supported on the tip of the drive arm is engaged with the arc groove of the engagement flange, and the food-containing pot can be rotated by the pot rotation drive motor. A pair of left and right mounting legs for both installation boxes are extended from the pot holder to a position eccentric to one side by a certain distance forward from a diameter line crossing the center of the food storage pot in the left-right direction, The pot holder is pivotally attached to both mounting boxes so as to be freely rotatable up and down by a pair of left and right rotating shafts each extending parallel to the diameter line from the mounting legs, and the food storage pot can be raised and turned over from the rear around the horizontal axis of both rotating shafts on the pot holder.

2. A plurality of roller mounting brackets are erected from the base frame of the pot holder in a radially symmetrical distribution pattern. The first pot support roller supports the reinforcing stays that extend from the body of the food storage pot from below, and the second pot support roller restrains the reinforcing bands that are wrapped around the body of the food storage pot from the side. An electromagnetic induction heating food mixer as described in claim 1, characterized in that the first pot support roller is supported by a horizontal roller pin and the second pot support roller is supported by a vertical roller pin on each of the roller mounting brackets, both of which are freely rotatable.

3. An electromagnetic induction heating type food mixer as described in claim 2, characterized in that the first pot support roller and the second pot support roller are completely covered by a ring-shaped safety cover attached and fixed to a reinforcing stay extending from the body of the food storage pot.

4. A rotating lever that integrally projects from a rotating support shaft pivotally attached to the operation side installation box of the mounting leg of the pot holder and a piston rod of a pot tipping operating cylinder that is built into the operation side installation box are pivotally connected inside the installation box, An electromagnetic induction heating food mixer as described in claim 1, characterized in that the rotational angle position of the sensor detection plate that extends integrally from the rotating support shaft pivotally attached to the stirring side installation box on the mounting leg of the pot holder is detected by a proximity switch correspondingly installed inside the stirring side installation box.

5. The upper and lower ends of the lifting shaft supporting the mixer drive case, which has a built-in rotation drive motor for the food mixing blades, are inserted into the drive case and the mixing side installation box, respectively, so that they can only be raised and lowered. The lifting shaft is raised and lowered by a certain stroke by a mixer lifting actuation cylinder installed inside the mixing side installation box, up to a floating height at which the mixing blades of the ingredients are pulled out from the upper surface of the opening of the ingredients containing pot, The agitator drive case, which has risen from the agitation-side installation box to the floating height, is then retracted radially from the upper surface of the opening of the food-containing pot by rotating a worm that engages with a worm wheel that is fitted and integrated into the upper end of the lifting shaft using an agitator rotation drive motor that is built into the drive case.

2. The electromagnetic induction heating food mixer according to claim 1, wherein the agitator drive case is configured to rotate forward by a fixed angle around the vertical axis of the lifting shaft.

6. The lifting slider, which is fitted and integrated with the lower end of the lifting shaft, is raised and lowered linearly along a pair of front and rear lifting guide supports that are parallel to the lifting shaft that stands vertically inside the mixing side installation box, and 6. An electromagnetic induction heating food mixer as described in claim 5, characterized in that the upper and lower limit positions of the lifting detection plate attached and integrated to the lifting slider are detected by a pair of upper and lower proximity switches installed corresponding to sensor supports parallel to the lifting guide supports.

7. A pair of upper and lower sensor detection plates are attached and fixed to the mid-height position of the lifting shaft inserted into the inside of the agitator drive case and erected vertically. A pair of upper and lower proximity switches for detecting the rotation angle position of each sensor detection plate are installed inside the agitator drive case, 6. An electromagnetic induction heating food mixer according to claim 5, wherein the target rotation angle position of the mixer drive case is detected by either the upper or lower proximity switch.

8. A stopper pin is attached and fixed to either the bottom surface of the agitator drive case supported by the lifting shaft or the top surface of the agitator side installation box facing it, and a socket for receiving the stopper pin is correspondingly installed on the remaining other surface, 6. The electromagnetic induction heating food mixer according to claim 5, wherein when the agitator drive case is lowered to its lowest position, a stopper pin is inserted into and fitted into the receiving socket, thereby preventing the agitator drive case from rotating around the vertical axis of the lifting shaft.

9. A rotary drive motor for the first agitating blade, which is alternatively used, and a rotary drive motor for the second agitating blade, which is different from the first agitating blade, are respectively attached and fixed to the lower and upper parts of the agitator drive case; The rotation axis of the first stirring blade rotated by the rotation drive motor for the first stirring blade is an inclined rotation axis that intersects with the flat bottom surface of the food-containing pot at an acute angle, The rotation axis of the second stirring blade rotated by the second stirring blade rotation drive motor is also set to a vertical rotation axis perpendicular to the flat bottom surface of the food-containing pot, The stirring area of ​​the ingredients by the first stirring blade and the stirring area of ​​the ingredients by the second stirring blade are limited to the eccentric portion occupying approximately the same half of the ingredients storage pot, 6. The electromagnetic induction heating food mixer according to claim 5, wherein the remainder of the food-containing pot is entirely covered with a pot lid attached to the pot holder.

10. A positioning frame piece is partially extended rearward from the pot holder along a longitudinal diameter line perpendicular to the transverse diameter line of the food-containing pot, A pot holder stopper with an adjustable vertical height is hung vertically from the middle of a horizontal base bar fixed between the left and right sides of the stirring side installation box and the operation side installation box.

2. An electromagnetic induction heating food mixer as described in claim 1, characterized in that the pot holder stopper receives the positioning frame piece from below, so that the flat bottom surface of the food storage pot, which is suspended by the pot support rollers of the pot holder, is always placed horizontally parallel to the electromagnetic induction heater, ensuring a constant gap.

11. A coil movement base having a plurality of movement guide elongated holes formed therethrough in an arrangement extending parallel to the front-rear direction is horizontally fixed and traversed within an electromagnetic induction heater housing case covered with a top plate that also serves as a heat insulating cover, A plurality of electromagnetic wave rectifying plates are attached to the upper surface of the coil moving base, and a plurality of identical screw seat plates are attached to the lower surface thereof, by a plurality of mounting position adjusting bolts which are passed through the movement guide elongated holes from above, 2. The electromagnetic induction heating food mixer according to claim 1, wherein electromagnetic induction heating coils of the same shape are installed on the upper surfaces of horizontal coil bases fixedly supported within frames having a U-shaped cross section in each of the electromagnetic wave rectifying plates, and the mounting positions of the electromagnetic induction heating coils are determined so that they can be changed and adjusted along the long movement guide holes in the coil movement base.

12. The pot tipping operating cylinder built into the operation side installation box and the agitator lifting operating cylinder built into the agitation side installation box are both hydraulic cylinders. A common hydraulic pump unit that pumps hydraulic oil to both hydraulic cylinders is installed inside one of the installation boxes, 2. The electromagnetic induction heating food mixer according to claim 1, wherein the connecting pipes between the hydraulic pump unit and both hydraulic cylinders are passed through a wiring passage fixed horizontally between the left and right sides of the operation side installation box and the mixing side installation box, together with the connecting wiring between the electromagnetic induction heating coil in the electromagnetic induction heater and its heating inverter.

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