Food material heating agitator

Abstract

To provide a food material heating agitator appropriately effective mainly for stir-frying of fried rice.SOLUTION: A food material heating agitator includes: a horizontally rotated food material containing pan (5) whose bottom surface (5a) is flat; an IH heater (H) for the pan; and an inclination rotary shaft (56) for agitation blade inserted in the food material containing pan by crossing the flat bottom surface at an acute angle (γ) for use. On the inclination rotary shaft, food material scooping blades (60a), (60b), (60c) on upper, middle and lower stages and two food material crushing blades (61b), (61c) on the lower stage are fitted, the entire blades rotate so as to draw a conical motion trajectory, unravel and decompose with the crushing blades the food material which is successively scooped by the scooping blades and falls.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a heating and mixing machine for food ingredients that is suitable and effective for stir-frying, such as fried rice, pilaf, stir-fried vegetables, and fried noodles. [Background technology]

[0002] Patent documents 1 to 3 disclose a heating mixer that is equipped with a rotation drive means for a food-containing pot and a bottom heating means, as well as a rotation drive means for a stirring blade, and that inserts the rotating shaft of the stirring blade into the food-containing pot from the outside in an inclined position to heat and stir the food (object to be stirred).

[0003] Among these, the mixer described in Patent Document 1 in particular is considered to be the publicly known technology closest to the present invention in that it has a plurality of plate-shaped blade bodies (110), (120), (130) that repeat a series of actions of scooping up, lifting, and dropping fried rice (the object to be mixed) as it rotates. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2022-102763 A [Patent Document 2] Patent No. 6751984 [Patent Document 3] Patent No. 5981781 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the mixing blade (100) used in the mixer (300) of Patent Document 1 is an approximately U-shaped one-piece product as shown in FIG. 1, and the first to third blade bodies (110), (120), (130) are assembled into a three-dimensional shape by the first and second connecting members (20a), (20b). Therefore, the configuration required for mixing is extremely special, and it must be said that the cost-effectiveness of this machine is poor as a dedicated machine for stir-frying fried rice (the object to be stirred).

[0006] Furthermore, even though the blade tips (110a), (120a), (130a) of each of the first to third blade bodies (110), (120), (130) perform a scooping action, and the fanning surfaces (surfaces) (110b), (120b), (130b) perform a lifting action and a sliding action, they are not designed to actively or proactively crush the lumps of fried rice formed by the rice grains sticking together, and to break down and break down the grains into smaller pieces.

[0007] Therefore, coupled with the fact that the crossing angle between the first and second blade bodies (110)(120) and the crossing angle between the second and third blade bodies (120)(130) and the mounting height positions of the first to third blade bodies (110)(120)(130) relative to the rotating shaft (10) cannot be changed or adjusted, it can be difficult to quickly and reliably loosen and break down the chunks of fried rice and achieve a mixed state in which the rice grains are very fluffy, depending on the relationship between the rotation speed of the mixing blade (100) and the rotation speed of the food storage pot (container) (200).

[0008] Furthermore, the fried rice lumps tend to concentrate in the deepest center of the conical food container (200), and because no centrifugal force acts in that center, it is difficult to break down the fried rice lumps into rice grains, which creates the problem that the rice grains cannot be heated efficiently and uniformly in a short time. [Means for solving the problem]

[0009] The present invention aims to solve the above problems, and to achieve this aim, claim 1 provides a food heating and mixing device comprising a cooking kettle, a food storage pot installed on the top surface of the cooking kettle so as to be horizontally rotatable about a vertical axis, an IH heater built into the cooking kettle to heat the flat bottom surface of the food storage pot, a mixing blade for the food stored in the food storage pot, and a rotation shaft for the mixing blade,

[0010] The rotating shaft of the stirring blade is inserted into the inside of the food storage pot as an inclined rotating shaft that maintains a constant acute angle with the flat bottom surface of the food storage pot,

[0011] The stirring blades are of two types, a first set consisting of a pair of blades for scooping up ingredients, and a second set consisting of a pair of a scooping blade and a crushing blade. The first set is attached to an upper position on the base end side of the inclined rotating shaft, and the second set is attached to a middle position midway along the inclined rotating shaft and a lower position on the tip end side, so that they can rotate together.

[0012] The first and second sets of agitating blades rotate as a whole in a cone-shaped motion path that gradually tapers from the upper position to the lower position of the inclined rotation axis,

[0013] The food ingredients guided from the periphery of the food containing pot to the center by the first set of scooping blades are successively scooped up and dropped from the bottom of the food containing pot by the second set of scooping blades in the middle and lower positions, and the dropped food ingredients are successively loosened and broken down by the crushing blades also in the middle and lower positions against the bottom of the food containing pot.

[0014] In claim 2, the surface of each scooping blade is formed into an arc shape that gradually curves upward from the front to the rear in the rotational direction.

[0015] The food pressing surface of each pressing blade is formed as a flat surface that gradually slopes upward from the center toward the front in the direction of rotation,

[0016] The gap between the food pressing surface and the inner bottom surface of the food containing pot is set larger than the gap between the food scooping surface and the inner bottom surface of the food containing pot.

[0017] In claim 3, the first set of paired scooping blades and the second set of paired scooping blades and crushing blades at the middle and lower positions are attached to the inclined rotating shafts via support arms having approximately the same overhang length,

[0018] The projection length of each support arm can be extended or shortened to adjust the gap between the food scooping surfaces of the scooping blades in the first and second sets and the inner bottom surface of the food storage pot, and / or the gap between the food pressing surfaces of the crushing blades in the second set and the inner bottom surface of the food storage pot.

[0019] In claim 4, the rotation direction of the food container as viewed from above and the rotation direction of the inclined rotation shaft of the stirring blade as viewed from below the tip side are the same counterclockwise or clockwise direction.

[0020] The food material is scooped up by the scooping blade along the rotation direction of the food material storage pot, and is broken down and decomposed by the crushing blade, and then moved to the peripheral edge side of the food material storage pot.

[0021] In claim 5, the pair of scooping blades in the first set and the pair of scooping blades and crushing blades in the middle and lower positions in the second set are all positioned to face each other on a straight line between the support arms when viewed from the tip end side of the inclined rotation shaft,

[0022] Furthermore, the first set is attached to the upper position of the inclined rotation shaft via the support arms, and the second set is attached to the middle and lower positions of the inclined rotation shaft via the same support arms, respectively, and is arranged in a relationship that maintains a substantially equal and constant cross angle between adjacent support arms.

[0023] In claim 6, a first set of scooping blades attached to an upper stage of the inclined rotating shaft and a second set of scooping blades attached to a middle stage and a lower stage of the inclined rotating shaft are arranged so that adjacent pairs of scooping blades overlap each other by a certain amount,

[0024] The second set of crushing blades attached to the middle and lower positions of the inclined rotation shaft are also arranged so that adjacent ones of the crushing blades overlap each other by a certain amount.

[0025] In claim 7, the tip of the inclined rotating shaft is inserted toward the inside of the food storage pot, and is inclined so that the cross angle with the flat bottom surface of the food storage pot is kept at 30 to 35 degrees.

[0026] The overall stirring area of ​​the ingredients caused by the rotation of the stirring blades attached to the inclined rotating shaft is limited to an eccentric portion that occupies approximately half of the inner bottom surface of the ingredients storage pot.

[0027] In claim 8, the second set of scooping blades and crushing blades attached to the middle and lower positions of the inclined rotation shaft are formed to be approximately the same size as each other,

[0028] Similarly, the first set of scooping blades attached to the upper position of the inclined rotation shaft are shaped to be larger than the second set of scooping blades.

[0029] Furthermore, in claim 9, in addition to the inclined rotating shaft that is inserted into the inside of the food storage pot as the rotating shaft of the stirring blade, a vertical rotating shaft that is used alternatively to the inclined rotating shaft and that hangs down toward an eccentric part inside the food storage pot is also provided.

[0030] The present invention is characterized in that a second agitating blade, different from the first agitating blade attached to the inclined rotating shaft, is attached to the tip of the vertical rotating shaft and used. Effect of the Invention

[0031] According to the configuration of claim 1, a first set of paired food scooping blades is attached at the upper position of the inclined rotating shaft inserted in an inclined installation state that maintains an acute intersection angle with the flat bottom surface of the food storage pot, and a second set of paired food scooping blades and food crushing blades are attached at the middle and lower positions so that both can rotate together.

[0032] Furthermore, the stirring blades as a whole are arranged so that they describe a conical rotational motion trajectory that gradually tapers from the upper to the lower position of the inclined rotation axis. Therefore, even when used in stir-frying fried rice, the crushing blades actively and proactively crush the lumps of cooked rice particles that are stuck together, efficiently loosening and breaking them down, and the heating and drying action is evenly distributed to the inside, resulting in the ideal fried rice with a fluffy texture.

[0033] In that case, if the configuration of claim 2 is adopted, the food scooping surface (front / upper surface) of each scooping blade can reliably scoop up even the rice grains of the fried rice from the flat inner bottom surface of the food containing pot, while the food pressing surface (back / lower surface) of each crushing blade can reliably loosen and break down clumps of rice grains stuck together without the risk of unnecessarily crushing the rice grains of the fried rice.

[0034] If the configuration of claim 3 is adopted, support arms of approximately the same length, which is the rotation radius, are used for the paired scooping blades of the first set and for each pair of scooping blades and crushing blades in the lower two rows of the second set, but by expanding or contracting the length of each support arm, the gap between the food scooping surface and the flat inner bottom surface of the food storage pot and / or the gap between the food pressing surface and the inner bottom surface of the food storage pot can be adjusted to be wider or narrower depending on the type of food and the cooking purpose, which helps to expand convenience and uses.

[0035] Furthermore, if the configuration of claim 4 is adopted, the rotation direction seen from above the food storage pot and the rotation direction of the inclined rotating shaft for the stirring blade seen from below its tip side are set to the same counterclockwise or clockwise direction, so that the food ingredients are stably scooped up and dropped by the scooping blade along the rotation direction of the food storage pot, and the dropped food ingredients are reliably loosened and broken down by the crushing blade, and the food ingredients can naturally and smoothly move to the peripheral side (centrifugal side) of the food storage pot.

[0036] If the configuration of claim 5 is adopted, the adjacent support arms of the first set of paired scooping blades and the second set of paired scooping blades and crushing blades are arranged in a relationship that maintains a nearly equal, constant cross angle. This, combined with the first and second sets of stirring blades rotating as a whole to describe the above-mentioned conical motion locus, means that the group of blades scattered in a radially symmetrical distribution at constant intervals, so to speak, can efficiently stir the ingredients in a short amount of time.

[0037] If the configuration of claim 6 is adopted, the first set of scooping blades and the second set of scooping blades are arranged in a relationship in which adjacent blades overlap each other by a certain amount, and the second set of crushing blades are also arranged in a relationship in which adjacent blades overlap each other by a certain amount, so that the scooping and crushing functions of food can be performed reliably and without omissions.

[0038] If the configuration of claim 7 is adopted, the eccentric portion occupying approximately half of the inner bottom surface of the food storage pot is used as the stirring area, and the scooping blade and crushing blade perform the stirring action of the food ingredients, while the remaining approximately half is used as a non-stirring area (blank area) where only the heating action of the food ingredients is performed, thereby having the effect of uniformly heating and drying the entire surface of the food ingredients such as rice grains, vegetable pieces and other solid matter without unevenness.

[0039] Furthermore, if the configuration of claim 8 is adopted, the first set of scooping blades located at the upper position of the inclined rotating shaft have a long support arm, which is their rotation radius, and a slow peripheral speed, so that their food scooping surface is shaped to be larger than that of the other scooping blades in the lower two rows, and so they can slowly lift a relatively large amount of food located on the peripheral side of the food containing pot to a high position and drop it, and the large movement of the scooping blades also helps to loosen and break down the food.

[0040] If the configuration of claim 9 is adopted, the inclined rotation shaft of the first stirring blade and the vertical rotation shaft of the second stirring blade can be selected, for example, to use a vertical rotation shaft to which a second stirring blade suitable for stir-fried vegetables or yakisoba, different from the first stirring blade suitable for stir-fried rice, can be attached, and the second stirring blade can be used for stir-frying vegetables, yakisoba, etc., thereby improving the convenience and versatility of the heating stirrer. [Brief description of the drawings]

[0041] [Figure 1] FIG. 1 is a perspective view showing a heating and mixing machine suitable for stir-frying ingredients according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a perspective view of the cooking pot of FIG. 1 in an upturned state. [Diagram 3] FIG. 2 is an enlarged front view of the heating and stirring machine of FIG. [Figure 4] FIG. 4 is a plan view of FIG. [Diagram 5] 4 is a sectional front view corresponding to FIG. 3, showing a state in which the cooking pot is supported. FIG. [Figure 6] FIG. 6 is a plan view of FIG. 5. [Figure 7] FIG. 6 is a right side view of FIG. 5. [Figure 8] FIG. 2 is a plan view showing a scattered arrangement of IH heating coils in an IH heater. [Figure 9] FIG. 4 is a sectional front view showing the lifting mechanism of the agitator drive box. [Figure 10] FIG. 10 is a sectional front view of the agitator drive box raised from the horizontal installation state of FIG. 9. [Figure 11] FIG. 4 is a perspective view illustrating a main part of the raising mechanism. [Figure 12] FIG. 12 is an enlarged front view of FIG. [Figure 13] FIG. 12 is an enlarged side view of FIG. [Figure 14] FIG. 10 is an enlarged front view showing the agitator drive box of FIG. 9 with a cutaway; [Figure 15] FIG. 15 is a plan view of FIG. [Figure 16] FIG. 15 is an external perspective view of FIG. [Figure 17] 17 is a perspective view of FIG. 16 as viewed from diagonally below. [Figure 18] FIG. 2 is a front view of a scraper attached to the agitator drive box. [Figure 19] FIG. 19 is a plan view of FIG. [Figure 20] FIG. 19 is a perspective view showing the attachment state of the scraping blade extracted from FIG. 18. [Figure 21] 1 is a front view showing the cooking pot in an overturned state and the scraping blade in a raised state. FIG. [Figure 22] FIG. 4 is a perspective view showing the overall mounting state of a first agitating blade relative to an inclined rotating shaft, as viewed from below. [Diagram 23] FIG. 23 is a side view of FIG. 22. [Figure 24] FIG. 2 is a perspective view showing a single scooping blade in the first agitating blade. [Diagram 25] FIG. 25 is a plan view of FIG. 24. [Figure 26] FIG. 25 is a front view of FIG. 24. [Figure 27] FIG. 13 is a perspective view showing a single crushing blade. [Figure 28] FIG. 28 is a plan view of FIG. 27. [Figure 29] FIG. 28 is a front view of FIG. 27. [Diagram 30] FIG. 2 is a front view showing a schematic diagram of the overall arrangement and distribution state of the scooping blades and the crushing blades in the first agitating blade. [Figure 31(a)]FIG. 13 is a side view for explaining the action of the scooping blade attached at the upper stage position of the inclined rotation shaft. [Figure 31(b)] FIG. 31(a) is a front view of FIG. [Figure 32(a)] FIG. 11 is a side view for explaining the action of the scooping blade attached at the middle position of the inclined rotation shaft. [Figure 32(b)] FIG. 32(a) is a front view of FIG. [Figure 33(a)] FIG. 13 is a side view for explaining the action of the scooping blade attached at a lower position of the inclined rotation shaft. [Figure 33(b)] FIG. 33(a) is a front view of FIG. [Figure 34(a)] FIG. 13 is a side view for explaining the action of the crushing blade attached at the middle position of the inclined rotating shaft. [Figure 34(b)] FIG. 34(a) is a front view of FIG. [Figure 35(a)] FIG. 13 is a side view for explaining the action of the crushing blade attached at a lower position of the inclined rotation shaft. [Figure 35(b)] FIG. 35(a) is a front view of FIG. [Diagram 36] FIG. 31 is a schematic side view of the assembled state in which all the scooping blades in FIG. 30 have reached bottom dead center. [Figure 37] FIG. 31 is a schematic side view of the combined state in which all the crushing blades in FIG. 30 have reached bottom dead center. [Figure 38] FIG. 13 is a front view showing a state in which a separate second agitating blade is attached to the vertical rotation shaft (agitating sub-shaft) when in use. [Figure 39] FIG. 39 is a side view of FIG. 38. [Diagram 40] 40 is a perspective view showing the second agitating blade of FIG. 39. FIG. [Diagram 41] 39 is a cross-sectional front view of the agitator drive box raised from the horizontal installation state of FIG. 38. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0042] A preferred embodiment of the present invention will be described in detail below with reference to the drawings. Figures 1 to 21 show an ingredient heating and mixing machine that is suitable and effective for stir-frying fried rice, vegetables, etc., and (1L) and (1R) are a pair of left and right installation cabinets that fix the machine to the work floor. One of the installation cabinets (1L) (left side of Figures 1 to 6) is equipped with an agitator drive box (2), and the other installation cabinet (1R) (right side of the figures) has a built-in pot overturning mechanism (B) described later.

[0043] Moreover, the agitator drive box (2) is pivotally mounted to a pair of front and rear bearing masts (3) that stand up integrally from the installation machine cabinet (1L) that forms its support base, by a horizontal pivot fulcrum shaft (4) that passes through it, so that it can be raised and lowered by a certain angle (α) (preferably 60 degrees). The raising operating mechanism (C) of the agitator drive box (2), which will be described later, is built into the left-side installation machine cabinet (1L) mentioned above.

[0044] (T) is a cooking pot that is interposed between the left and right sides of the above-mentioned installation units (1L) and (1R) and holds a large circular food storage pot (5). The food storage pot (5) has a roughly U-shaped cross section with a certain diameter (e.g., 1100 mm) and depth (e.g., 294 mm) as shown in Figures 5 and 6, and is equipped with a flat bottom surface (5a) made of ferritic stainless steel (SUS430) and a body surface (5b) made of austenitic stainless steel (SUS304) welded thereto, with the bottom surface (5a) being conductive and forming a thick heat storage layer.

[0045] (6) is an IH (electromagnetic induction heating) frame that is rectangular in plan view and faces the bottom surface (5a) of the food storage pot (5) in the cooking pot (T). It is made of stainless steel (SUS304) and has a cross section that is approximately an inverted U-shape. An IH heater (electromagnetic induction heater) (H) that serves as the heating source for the food storage pot (5) is stored inside it.

[0046] As shown in Figure 8, the IH heater (H) consists of a total of five coils: one central IH heating coil (7) for heating the central area of ​​the bottom of the food-containing pot (5), and two each of the first and second peripheral IH heating coils (8a) (8b) which are responsible for heating the peripheral areas of the bottom, and the two each of the first and second peripheral IH heating coils (8a) (8b) are scattered in an overall radial arrangement centered around the central IH heating coil (7).

[0047] (9) is a rigid beam-like pot support frame fixed to the lower part of the IH frame (6), and a pair of pot-tilting arms (10L) (10R) stand up integrally from both ends of the frame. (11L) (11R) are horizontal pot-tilting shafts that protrude outward from the upper ends of the pot-tilting arms (10L) (10R), and are both pivotally attached to the pair of left and right mounting mechanisms (1L) (1R) mentioned above via bearing metals or the like. (12) is a pot bottom cover attached and fixed from below to the pot support frame (9), and (13) is a non-contact temperature sensor fixed to the bottom of the pot bottom cover (12), which is directed toward the area around the bottom of the food-containing pot (5) and detects the heating temperature of the pot bottom.

[0048] As is clear from Figures 5 to 7, the hook overturning operating mechanism (B) mentioned above comprises a drive motor (14) fixed in the right-side mounting cabinet (1R) and a reduction gear (15) installed in parallel in front of it, and a first transmission chain (18) is wound around the front and rear of a small-diameter constant-speed sprocket (16) of the reduction gear (15) and an output sprocket (17) of the drive motor (14).

[0049] In addition, a second transmission chain (21) is wound between the vertical intersection of the transmission sprocket (19) on the right (driving side) hook tipping shaft (11R) corresponding to the drive motor (14) and the large-diameter reduction sprocket (20) of the reducer (15).

[0050] When the pot-tilting shafts (11L) (11R) are rotated by the drive motor (14) of the pot-tilting operating mechanism (B), the cooking pot (T), which is suspended via the pot-tilting arms (10L) (10R) of the pot support frame (9), rotates up and down about the horizontal axis of both pot-tilting shafts (11L) (11R). As a result, as shown in Figures 1 and 2, the food-containing pot (5) supported by the pot support frame (9) can be tilted together with the IH frame (6) in the forward and backward directions by a certain angle (β) (preferably 90 degrees). This makes it easy and convenient to remove food ingredients such as fried rice that have been stir-fried from inside the food-containing pot (5).

[0051] (22) is a bearing boss welded to the center of the flat bottom surface (5a) of the food storage pot (5), and is made of a cylindrical nut made of stainless steel (SUS304), to which the rotating support shaft (23) made of a stainless steel rod (SUS304) of the food storage pot (5) is screwed from below to be integrated. As is clear from Figure 5, the rotating support shaft (23) of the food storage pot (5) passes through the IH frame (6) and pot support frame (9) of the cooking pot (T) and hangs down until it reaches the inside of the pot bottom cover (12).

[0052] (D) shows the horizontal rotation drive mechanism for the food storage pot (5), in which the drive motor (24) for the rotation support shaft (23) of the food storage pot (5) is attached and fixed to the underside of the pot support frame (9) as shown in Figure 5, and a drive sprocket (26) is fitted and integrated into the upper end of an output shaft (25) that stands vertically parallel to the rotation support shaft (23) of the food storage pot (5). A driven sprocket (27) that corresponds to the drive sprocket (26) is fitted and integrated into the rotation support shaft (23) at a mid-height position, and a transmission chain (28) is wound around the left and right sides of the two parallel sprockets (26), (27).

[0053] Therefore, the food containing pot (5) can be rotated horizontally around the vertical axis of the rotation support shaft (23) by the drive motor (24). The rotation speed is, for example, 2.9 to 11.6 rpm, and preferably 7.3 rpm.

[0054] As shown in Figures 9 to 13, the lifting mechanism (C) of the agitator drive box (2) described above comprises a drive motor (29) attached and fixed to the lower part within the left-side installation cabinet (1L) and a reduction gear (30) correspondingly installed at a mid-height position, and a transmission chain (33) is wound between the reduction sprocket (31) of the reduction gear (30) and the output sprocket (32) of the drive motor (29) above and below.

[0055] In addition, the horizontal pivot shaft (4) that passes through the agitator drive box (2) and the horizontal power take-off shaft (34) of the reducer (30) inside the installation cabinet (1L) are pivotally connected vertically via a swing link arm (35). When the swing link arm (35) is pushed up (raised) by the drive motor (29) as shown in Figure 10, the agitator drive box (2) is raised by a certain angle (α) (60 degrees as exemplified above) around the horizontal axis of the pivot shaft (4). This allows the first and second agitator blades and scraper (scraper), which will be described later, to be removed and retracted from the inside of the food storage pot (5).

[0056] When the swing link arm (35) is pulled down (lowered) by the drive motor (29), the agitator drive box (2) rotates in the opposite direction about the horizontal axis of its pivot shaft (4) by the same fixed angle (α) and is fixed and maintained in the horizontal installation state as shown in Figure 9. (36) is a detection plate for the sensor (not shown) at the fixed angle (α), (37) is a sensor bracket, and (38) is a receiving stopper for the agitator drive box (2).

[0057] A first agitator blade drive motor (39) is attached and fixed to the lower part of the agitator drive box (2), which can be raised around the horizontal axis of the pivot shaft (4), and a second agitator blade drive motor (40) is attached and fixed to the upper part of the same box (2). The pair of upper and lower drive motors (39), (40) can be selectively used depending on the ingredients and the cooking purpose, etc.

[0058] Moreover, as shown in Figures 14 to 17, the drive motor (39) for the first mixing blade is installed in an inclined state by an inclined support base (41) so as to maintain a constant acute intersection angle (γ) (for example, 30 to 35 degrees, preferably 32 degrees) with the flat bottom surface (5a) of the food storage pot (5) (the angle at which it intersects with the vertical axis of the food storage pot is preferably 58 degrees), and the tip of its drive shaft (42) protrudes from the mixer drive box (2) toward the inside of the food storage pot (5).

[0059] In contrast, the drive motor (40) for the second mixing blade is maintained in a horizontal installation state by a horizontal support base (43), and a vertical mixing main shaft (46) which is power-connected to the tip of the horizontal drive shaft (44) via a bevel gear mechanism (45), and a vertical mixing sub-shaft (47) which revolves around the main shaft (46) while rotating on its own axis, extend from the mixer drive box (2) toward the eccentric portion, particularly, of the food-containing pot (5).

[0060] In addition, (48) is an angle stay attached and fixed to the lower part of the front wall of the agitator drive box (2), and (49) is a holding arm for a scraper (50), the base end of which is attached to the angle stay (48) via an adjustment bolt (51) so that the extension length and angle can be adjusted freely, while the scraper (50) made of synthetic resin is attached to a support rod (52) hanging down from the tip of the angle stay (49) so that the installation height can be adjusted freely.

[0061] As shown in Figures 19 to 21, the scraping blade (scraper) (50) comes into contact with the body surface (inner surface) (5b) of the rotating food storage pot (5), scraping the food ingredients while guiding the food ingredients from the periphery to the center of the food storage pot (5). However, since it is attached to the front wall of the agitator drive box (2), when the agitator drive box (2) is raised by the above-mentioned certain angle (α), the food scraping blade (scraper) (50) also follows and is removed from the inside of the food storage pot (5) and retracted.

[0062] In this case, as illustrated in Figures 14 to 17, a slide plate (53) is extended from the support rod (52) of the scraper (50), and a contact-type wireless thermometer (55) is attached to the tip of the slide plate (53) via a bracket (54), so that the heating temperature (product temperature) of the ingredients in the ingredient storage pot (5) can be detected (measured) by the thermometer (55).

[0063] Of the first and second agitator blade drive motors (39) and (40), the first agitator blade drive motor (39) has a tip end of the drive shaft (42) that projects in an inclined manner from the agitator drive box (2) into which an inclined rotating shaft (56) for the first agitator blade is inserted so as to be able to rotate integrally and to be removable via a connecting socket, connecting sleeve, or other suitable connector (57). (58) and (59) are a key pin that projects from the base end of the inclined rotating shaft (56) and a key groove that is formed correspondingly on the connector (57), which engage with each other.

[0064] The first stirring blade is a stirring blade (A1) made of stainless steel (SUS304) suitable for stir-frying food (fried rice) as shown in Figs. 3 and 4 and Figs. 22 and 23. It is made up of two types: a first set of paired blades (60a) for scooping up the food, and a second set of paired blades (60b) (60c) for scooping up the food and blades (61b) (61c) for crushing the food. The paired scooping blades of the first set are The blade (60a) is attached to an upper position (h1) on the base end of the inclined rotation shaft (56) so as to rotate integrally with the inclined rotation shaft (56), and a second pair of scooping blades (60b) (60c) and crushing blades (61b) (61c) are similarly attached to an intermediate position (h2) on the inclined rotation shaft (56) and a lower position (h3) on the tip end of the inclined rotation shaft (56) so as to rotate integrally with the inclined rotation shaft (56).

[0065] In this case, each of the scooping blades (60a), (60b), (60c) of the agitating blade (A1) has a smooth, arc-shaped food scooping surface (front surface / upper surface) (62) that gradually curves upward from the front end to the rear end in the direction of rotation, as shown in Figures 24 to 26, and support arms (63a), (63b), (63c) of a required length, which is the rotation radius, extend integrally from the front end of the scooping surface (62), and a two-split mounting boss (64) installed at the tip of the extension is clamped and fixed to the inclined rotation shaft (56) by a plurality of locking screws (65).

[0066] On the other hand, as shown in Figures 27 to 29, each of the crushing blades (61b) and (61c) has a flat food pressing surface (reverse surface / lower surface) (66) that gradually slopes upward from the center toward the front end in the direction of rotation, and a food releasing surface (67) that rises upward at an almost right angle from the rear end side opposite the direction of rotation. Support arms (63a), (63b), and (63c) of a required length, which is also the rotation radius, extend integrally from the center, and a two-split mounting boss (64) provided at the tip of the extension is clamped and fixed to the inclined rotation shaft (56) by a plurality of locking screws (65).

[0067] Moreover, the support arms 63a, 63b, and 63c of the scooping blades 60a, 60b, and 60c and the support arms 63b, 63c of the crushing blades 61b, 61c are provided with slide guide long holes 68 so that the required length that functions as the rotation radius can be adjusted, and with bolts 69 for fixing the adjusted length. (70) is a positioning and fixing ring for the mounting boss 64 relative to the inclined rotation shaft 56.

[0068] In this regard, the clamping and fixing structure of the support arms (63a), (63b), and (63c) relative to the inclined rotation shaft (56) and the length adjustment structure of the support arms (63a), (63b), and (63c) are common to each of the scooping blades (60a), (60b), and (60c) and each of the crushing blades (61b), (61c), and therefore the same reference numerals are used to denote those structures.

[0069] As explained above, the first set of scooping blades (60a) in the first agitating blade (A1) are paired, and the second set of scooping blades (60b) (60c) and crushing blades (61b) (61c) are paired. Here, however, as is clear from Figures 22 and 30, "paired" means that, when viewed from the tip side (below) of the inclined rotation shaft (56), each blade is positioned opposite its corresponding support arm (63a), (63b), (63c) in a straight line.

[0070] In this case, as can be seen from the schematic front view of Figure 30, the first set attached to the upper position (h1) of the inclined rotation shaft (56) via the support arm (63a), and the second set attached to the middle position (h2) and the lower position (h3) of the inclined rotation shaft (56) via the support arms (63b) and (63c), respectively, are arranged in a relationship such that the adjacent support arms (63a), (63b), and (63c) maintain an approximately equal and constant cross angle (θ) (for example, 120 degrees) between each other.

[0071] In addition, the first pair of scooping blades (60a) attached to the upper position (h1) of the inclined rotation shaft (56), and the second pair of scooping blades (60b) (60c) and crushing blades (61b) (61c) attached to the middle position (h2) and lower position (h3) of the inclined rotation shaft (56), respectively, rotate as a whole in a manner that describes a conical motion locus that gradually tapers from the upper position (h1) to the middle position (h2) to the lower position (h3) of the inclined rotation shaft (56) as is clear from the combined schematic side views of Figures 36 and 37.

[0072] In other words, the support arm (63a) which defines the radius of rotation of the pair of scooping blades (60a) attached to the upper position (h1) of the inclined rotation shaft (56) is the longest, the support arm (63c) which defines the radius of rotation of the pair of scooping blades (60c) and crushing blades (61c) attached to the lower position (h3) is the shortest, and the support arm (63b) which defines the radius of rotation of the pair of scooping blades (60b) and crushing blades (61b) attached to the middle position (h2) is sized to be intermediate between these two lengths.

[0073] In this regard, for the sake of convenience in explaining the trajectory of the conical rotational motion, the composite schematic side views of Figures 36 and 37 show the three scooping blades (60a), (60b), and (60c) located at the top, middle, and bottom positions being aligned in such a way that they are all, so to speak, closest to the inner bottom surface of the food storage pot (5) at the same time. However, as explained based on Figures 22 and 30, the scooping blades (60a), (60b), and (60c) and crushing blades (61b), (61c) as a whole are arranged in a relationship in which the adjacent support arms (63a), (63b), and (63c) maintain approximately the same intersection angle (θ), so that they always come closest to the inner bottom surface of the food storage pot (5) in sequence.

[0074] The closest position is called bottom dead center (P), and assuming that the inclined rotation shaft (56) rotates counterclockwise (R2) as seen from its tip side (below) as shown in Figures 22 and 30, and one of the scooping blades (60a) at its upper position (h1) reaches bottom dead center (P) first, the order in which the blades subsequently reach bottom dead center (P) is indicated by the numbers "No. 1 to No. 6" written in Figures 22, 23, and 30.

[0075] Furthermore, the support arms (63b) and (63c) of the squeezing blades (61b) and (61c) at the middle position (h2) and the lower position (h3) of the inclined rotation shaft (56) are slightly shorter than the support arms (63b) and (63c) of the scooping blades (60b) and (60c) that are paired with them. The gap (S1) between the food pressing surface (rear surface / lower surface) (66) and the inner bottom surface of the food storage pot (5) is set wider than the gap (S2) between the food scooping surfaces (front surface / upper surface) (62) of the scooping blades (including the scooping blades in the upper position) (60a), (60b), (60c) at the bottom dead center (P) position and the inner bottom surface of the food storage pot (5).

[0076] Taking the size of rice grains in fried rice as a guide, the scooping surfaces (62) of the scooping blades (60a), (60b), (60c) scoop up the rice grains from the flat inner bottom surface of the food storage pot (5), so the gap (S2) between the scooping surfaces and the inner bottom surface is set to a dimension equal to the size of the rice grain, for example 1 mm, at most. In contrast, the crushing blades (61b), (61c) do not crush the rice grains, but act to crush clumps of rice grains stuck together, so the gap (S1) between their pressing surfaces (66) and the inner bottom surface of the food storage pot (5) is set to a dimension equal to the size of the rice grain, for example 15 mm, at most, at most. However, in particular, the scooping blades 60a, 60b, and 60c may be provided with a fluororesin plate attached to their backsides (lower surfaces) with fixing screws or adhesives, or may be coated with a fluororesin, so that they can slide easily against the flat bottom surface 5a of the food storage pot 5. As long as they do not impose a large resistance to the rotation of the food storage pot 5, it is not necessary for the stirring blades to be kept out of contact with the bottom of the pot.

[0077] In any case, as described above, the support arms (63a), (63b), (63c) of the scooping blades (60a), (60b), (60c) and the crushing blades (61b), (61c) of the first mixing blade (A1) can be slidably operated so as to extend or contract the required length, which is the rotation radius, and therefore, by extending or contracting the length, the mutual gaps (S1), (S2) can be adjusted to be wider or narrower depending on the ingredients and the cooking purpose, etc.

[0078] As can be seen from Figures 36 and 37, the first set of scooping blades (60a) attached to the upper position (h1) of the inclined rotation shaft (56) and the second set of scooping blades (60b) (60c) attached to the middle position (h2) and the lower position (h3), respectively, are arranged in an operative relationship in which adjacent blades overlap each other by a certain amount (X1) (e.g., 26 to 28 mm), and the second set of crushing blades (61b) (61c) attached to the middle position (h2) and the lower position (h3), respectively, of the inclined rotation shaft (56) are also maintained in an operative relationship in which adjacent blades overlap each other by a certain amount (X2) (e.g., 26 to 28 mm).

[0079] In this case, the crushing blades (61b) (61c) at the middle position (h2) and the lower position (h3) have approximately the same size and shape, and the scooping blades (60b) (60c) at the middle position (h2) and the lower position (h3) also have approximately the same size and shape, whereas the scooping blade (60a) at the upper position (h1) is larger in size than the other scooping blades (60b) (60c) and the crushing blades (61b) (61c).

[0080] 31 to 37, the reference numeral (W1) denotes the width of the food crushing action of the crushing blades (61b) and (61c) (e.g., 136 to 150 mm), (W2) denotes the width of the food scooping action of the lower two scooping blades (60b) and (60c) (e.g., 136 to 150 mm), and the food scooping action width (W2) and the food crushing action width (W1) are almost the same size. (W3) denotes the wider food scooping action width of the upper scooping blade (60a) (e.g., 241.5 mm). However, the size of the blades (60a), (60b), (60c), (61b), and (61c), including their assigned acting widths (W1), (W2), and (W3), may be gradually (stepwise) smaller from the upper position (h1), through the middle position (h2), and to the lower position (h3).

[0081] The tip (lower end) of the inclined rotating shaft (56) is inserted from the agitator drive box (2) toward the inside of the food storage pot (5) in an inclined installation state maintaining a constant acute intersection angle (γ) (preferably 32 degrees as exemplified above), and reaches almost the center (on the vertical axis) of the food storage pot (5) as shown in Figures 3, 4 and Figures 31 to 35. The overall food stirring area (Z1) of the first stirring blade (A1) attached to the inclined rotating shaft (56) is limited to an eccentric portion that occupies about half of the inner bottom surface of the food storage pot (5), and about the remaining half, where the stirring blade (A1) is not present, is set as a blank area (non-stirring area) (Z2) that is only subjected to the heating action of the food.

[0082] In this regard, if the angle (γ) of the inclined rotating shaft (56) for the stirring blades, which intersects with the flat bottom surface (5a) of the food containing pot (5) at an acute angle, is greater than 35 degrees, assuming that the diameter and depth of the food containing pot (5) are constant, the difference in peripheral speed between the first set of stirring blades attached to the upper position (h1) of the inclined rotating shaft (56) and the second set of stirring blades attached to the lower position (h3) will be excessively large, making it difficult to stir the entire food ingredient evenly in a short period of time. On the other hand, if the angle is less than 30 degrees, the tip (lower end) of the inclined rotating shaft (56) will extend beyond the center of the food ingredient pot (5) and will be horizontally disposed along the diameter line of the food ingredient pot (5) for a long distance, making it difficult to ensure a non-stirring area (blank area) (Z2) for the food ingredient, and the heating stirrer will become unnecessarily large, which is undesirable.

[0083] Furthermore, the food containing pot (5) is rotated horizontally in the counterclockwise direction (R1) as seen from above, as shown in Figures 31 to 35, by the drive motor (24) of its rotating support shaft (23), and the inclined rotating shaft (56) of the first stirring blade (A1) inserted inside it in the inclined installation state described above is rotated in the same counterclockwise direction (R2) as the food containing pot (5) by the drive motor (29) in the stirrer drive box (2) as seen from below the tip side, as shown in Figure 30.

[0084] As long as the rotation directions (R1)(R2) of the food container pot (5) and the inclined rotating shaft (56) for the first stirring blade are the same, the rotation direction may be the opposite to that shown in the figure. The rotation speed of the inclined rotating shaft (56) is faster than the rotation speed of the food container pot (5) (2.9 to 11.6 rpm as exemplified above), and is, for example, 16.7 to 41.7 rpm, preferably 33.3 rpm.

[0085] As described above, the first stirring blade (A1) on the inclined rotating shaft (56) describes a conical rotational motion trajectory that gradually tapers from the upper position (h1) to the lower position (h3) on the inclined rotating shaft (56) as a whole. As a result, the scooping blade (60c) and crushing blade (61c) at the lower position (h3) near the center of the food storage pot (5) rotate at the fastest circumferential speed, while the paired scooping blade (60a) at the upper position (h1) near the periphery of the food storage pot (5) rotates at the slowest circumferential speed.

[0086] Therefore, the three upper, middle and lower tiers of scooping blades (60a), (60b) and (60c) are in an operational relationship state in which adjacent blades overlap each other by a certain amount (X1), and the two lower tiers of crushing blades (61b) and (61c) are in an operational relationship state in which adjacent blades overlap each other by a certain amount (X2), so that each of them can apply a scooping action and a crushing action to the food material in a redundant manner. In combination with this, the food material which is located in the center of the food storage pot (5) and is the least mobile can be scooped at a high peripheral speed at the lower tier position (h3). The lifting blade (60c) and the crushing blade (61c) can quickly and actively impart the required action, and the low peripheral speed scooping blade (60a) at the upper position (h1) can slowly lift and drop food ingredients located on the peripheral side of the food storage pot (5), where the rotational centrifugal force is acting, to a high position, which can be used to loosen and break down the food ingredients. The loosened and broken down food ingredients can also be guided so that they are gathered together toward the center without any leakage, and the scraping blade (50) also effectively cooperates in this guiding movement.

[0087] As explained above, the vertical main stirring shaft (46) and the sub-shaft (47) extend from the top of the agitator drive box (2) toward the inside of the food-containing pot (5). However, as shown in Figures 38 to 41, a connector similar to the connector (57) of the inclined rotating shaft (56) can be used at the tip of the main shaft (46) or at the tip of the sub-shaft (47), which revolves around it while rotating on its axis, to connect the vertical rotating shaft (71) to the tip of the main shaft (46) so that the two can rotate together and can be freely inserted and removed.

[0088] A second stirring blade (A2) consisting of two vertical blades (72L) (72R) made of stainless steel (SUS304) arranged side by side in a state of rotational symmetry different from the first stirring blade (A1) is attached to the tip (lower end) of the vertical rotating shaft (71), and this is rotated by a second stirring blade drive motor (40) built into the agitator drive box (2). In combination with the flat bottom surface (5a) of the food storage pot (5) which functions as a hot plate (a so-called iron plate), it is also possible to effectively stir-fry food other than the above-mentioned fried noodles, stir-fried vegetables, pilaf, and other ingredients.

[0089] In this case, as is clear from Figure 38, the stirring area (Z1) of the second stirring blade (A2) attached to the vertical rotating shaft (71) is limited to an eccentric portion occupying approximately half of the inner bottom surface of the food-containing pot (5), just like the stirring area (Z1) of the first stirring blade (A1) attached to the inclined rotating shaft (56), and approximately the remaining half is a blank area (non-stirring area) (Z2) that is also subjected only to the heating action of the food.

[0090] Furthermore, it goes without saying that if the agitator drive box (2) is raised by a certain angle (α) around the horizontal axis of the pivot shaft (4), the second agitator blade (A2) and its vertical rotating shaft (71) will also be removed and retracted from the inside of the food containing pot (5) as shown in Figure 41.

[0091] The food heating and mixing device of the illustrated embodiment has the above-mentioned configuration, and its operation will be explained as follows, taking the stir-frying of fried rice (food / mixed object) as a representative example.

[0092] That is, when fried rice is cooked using the above-mentioned heating mixer, the food containing pot (5) is rotated in the counterclockwise direction (R1) as shown in Figures 4, 6, 19 and Figures 30-35, while the food containing pot (5) is heated by the IH heater (H). When the food containing pot (5) reaches an appropriate temperature (for example, 190 degrees), the inclined rotation shaft (56) of the (first) mixing blade (A1) is rotated in the counterclockwise direction (R2) as shown in Figures 30 and 31-35, the same as the food containing pot (5), and the food (stirred object) fried rice (cooked rice, onion, liquid egg, seasoning, and other ingredients) is poured into the food containing pot (5).

[0093] In this way, during rotation of the stirring blade (A1), the scooping blades (60a), (60b), and (60c) attached to the inclined rotating shaft (56) in three tiers (top, middle, and bottom) and the crushing blades (61b) and (61c) attached to the bottom two tiers will move in sequence to the bottom dead center (P) at the position closest to the inner bottom surface of the food-containing pot (5) in the order of No. 1 to No. 6 shown in Figs. 22, 23, and 30, as shown in Figs. 30 to 35. The food ingredient (fried rice) that reaches the food container (5) is scooped up from the food scooping surfaces (62) of the scooping blades (60a) (60b) (60c) and falls from the bottom of the food container (5), where it is broken down and decomposed by the food pressing surfaces (66) of the crushing blades (61b) (61c). By repeating this scooping, falling and breaking down process, the heating and drying effects are evenly permeated into the food ingredient, resulting in a stir-fried state with a rich, fluffy texture.

[0094] In this case, the scooping blades (60a), (60b), (60c) and crushing blades (61b), (61c) are arranged in a radially symmetrical scattered manner along both the axial direction (longitudinal direction) of the inclined rotation shaft (56) and the circumferential direction of 360 degrees of rotation, so that the blades as a whole describe a conical rotational motion locus as shown in Figures 36 and 37, thereby enabling the ingredients to be mixed efficiently in a short period of time.

[0095] Moreover, the mutual gap (S2) between the food scooping surfaces (62) of the scooping blades (60a), (60b), (60c) and the inner bottom surface of the food storage pot (5) is narrowed to about the size of a grain of rice at most (1 mm as exemplified above), so that the scooping surfaces (62) can reliably scoop up the food material before dropping it. On the other hand, the mutual gap (S1) between the food pressing surfaces (66) of the crushing blades (61b), (61c) and the inner bottom surface of the food storage pot (5) is set to be wide, at most about the size of a grain of rice (15 mm as exemplified above). Therefore, the rice grains of the food material (fried rice) are not unnecessarily crushed, and the lumps that have adhered together can be crushed and broken down, making it possible to apply the heating and drying action to the inside of the food material.

[0096] In addition, adjacent scooping blades (60a), (60b), (60c) attached to the inclined rotating shaft (56) in three tiers (top, middle, and bottom) and adjacent crushing blades (61b), (61c) attached to the lower two tiers are all arranged in a relationship such that they overlap by a certain amount (X1), (X2). This ensures that both the scooping action and the crushing (loosening and breaking down) action of the food ingredients can be performed without any oversight.

[0097] Furthermore, the inclined rotation axis (56) of the stirring blade (A1) is inclined and installed at an inclination that maintains a constant intersection angle (γ) of an acute angle (preferably 32 degrees) with the plane (flat bottom surface) of the bottom of the food storage pot (5), and its tip (lower end) is located almost at the center of the food storage pot (5), so that the entire food stirring area (Z1) of the stirring blade (A1) is limited to an eccentric part that occupies about half of the inner bottom surface of the food storage pot (5), and about half of the remaining area is set as a blank area (non-stirring area) (Z2) that is only subjected to heating action, so that the rice grains of the food (fried rice) and other ingredients (solids) do not move in the blank area (Z2) and the same surface is always in contact with the inner bottom surface of the food storage pot (5) for a long time, and they can be heated and dried uniformly without variation. The surface of the solid food that moves during stirring is randomly separated from the inner bottom surface (heating surface) of the food storage pot (5), so that a stable heating and drying state cannot be obtained for the entire surface.

[0098] In particular, a second set of paired scooping blades (60b) (60c) and crushing blades (61b) (61c) are attached to the middle position (h2) and the lower position (h3) of the inclined rotating shaft (56), while there is no crushing blade at the upper position (h1) of the inclined rotating shaft (56) and only a first set of paired scooping blades (60a) are attached. Therefore, the scooping blades (60a), which have a slow peripheral speed, can slowly scoop up a large amount of food material to a high position and drop it, which is useful for loosening and decomposing the food material. The decomposed food material can then be moved from the periphery to the center along the rotational direction of the food storage pot (5).

[0099] In this regard, if the crushing blade is attached to the upper position (h1) of the inclined rotating shaft (56), the support arm, which is its rotation radius, becomes longer and its peripheral speed becomes slower. This, combined with the pressing surface of the crushing blade pressing the food material against the inner bottom surface of the food material storage pot (5), may block the movement of the food material, ultimately hindering the rotation of the food material storage pot (5).

[0100] In any case, the inclined rotation axis (56) of the stirring blade (A1) and the food storage pot (5) in which it is inserted at an acute intersection angle (γ) are driven to rotate in the same counterclockwise direction (R1) (R2) as shown in Figure 30 and Figures 31 to 35, so that the food ingredients scooped up and dropped by the scooping blades (60a), (60b), (60c) and then loosened and decomposed by the crushing blades (61b), (61c) can be moved smoothly and naturally to the peripheral edge of the food storage pot (5). [Explanation of symbols]

[0101] (1L)(1R)...Installation machine casing (2) Agitator drive box (4) Pivot fulcrum axis (5) Food storage pot (6) Induction heating frame (9) Pot support frame (22) Bearing boss (23) Rotating shaft (39) Drive motor for first agitator blade (40) Drive motor for second agitator blade (42) (inclined) drive shaft (44) (horizontal) drive shaft (50) Scraping blade (scraper) (56) Tilt rotation axis (60a)(60b)(60c)···Scooping blade (61b)(61c)···Crushing blade (62) Food scooping surface (63a)(63b)(63c) Support arm (66) Food pressing surface (71) Vertical rotation axis (A1) (First) Agitator blade (A2)...(Second) stirring blade (B) ·······························································. (C) Lifting mechanism (D) Pot horizontal rotation drive mechanism (P)...Bottom dead center (H)...IH heater (T) Cooking pot (S1)(S2)...Mutual gap (R1) Rotation direction of food container (R2) Rotation direction of the tilted axis (W1)(W2)(W3)...Wing width (X1)(X2)...overlap amount (Z1) Stirring area (Z2)...Blank area (α)(β)...Constant angle (γ)(θ)...Cross angle (h1)...Upper position (h2)...middle position (h3)...lower position

Claims

1. A food heating and mixing device comprising: a cooking pot; a food storage pot that is installed on the top surface of the cooking pot so as to be horizontally rotatable about a vertical axis; an induction heater that is built into the cooking pot to heat the flat bottom surface of the food storage pot; a mixing blade for mixing food stored in the food storage pot; and a rotation shaft for the mixing blade, The rotating shaft of the stirring blade is an inclined rotating shaft that maintains a constant acute angle with the flat bottom surface of the food storage pot, and is inserted into the inside of the food storage pot, The stirring blades are of two types, a first set consisting of a pair of blades for scooping up ingredients, and a second set consisting of a pair of a scooping blade and a crushing blade. The first set is attached to an upper position on the base end side of the inclined rotating shaft, and the second set is attached to a middle position midway along the inclined rotating shaft and a lower position on the tip end side, so that they can rotate together. The first and second sets of stirring blades rotate as a whole in a manner that describes a cone-shaped movement locus that gradually tapers from the upper position to the lower position of the inclined rotation axis, The food material is guided from the periphery of the food material storage pot to the center by the first set of scooping blades and dropped from the bottom of the food material storage pot by the second set of scooping blades at the middle and lower positions, and the dropped food material is successively loosened and decomposed by the crushing blades at the middle and lower positions against the bottom of the food material storage pot.

2. The surface of each scooping blade is curved upward gradually from the front to the rear in the direction of rotation. The food pressing surface of each pressing blade is formed as a flat surface that gradually slopes upward from the center toward the front in the direction of rotation, The food heating and mixing device as described in claim 1, characterized in that the gap between the food pressing surface and the inner bottom surface of the food storage pot is set to be larger than the gap between the food scooping surface and the inner bottom surface of the food storage pot.

3. The first set of pairs of scooping blades and the second set of pairs of scooping blades and crushing blades at the middle and lower positions are respectively attached to an inclined rotating shaft via support arms having substantially the same overhang length, The food heating and mixing device as described in claim 1, characterized in that the mutual gap between the food scooping surfaces of the scooping blades in the first and second sets and the inner bottom surface of the food storage pot and / or the mutual gap between the food pressing surfaces of the crushing blades in the second set and the inner bottom surface of the food storage pot can be adjusted to be wider or narrower by extending or shortening the extension length of each support arm.

4. The rotation direction of the food container as viewed from above and the rotation direction of the inclined rotation shaft of the stirring blade as viewed from below the tip side are the same counterclockwise or clockwise. The food heating and stirring machine according to claim 1, characterized in that the food ingredients are scooped up by the scooping blades along the rotation direction of the food ingredient storage pot, broken down and crushed by the crushing blades, and then moved to the peripheral side of the food ingredient storage pot.

5. the pair of scooping blades of the first set and the pair of scooping blades and crushing blades at the middle and lower positions of the second set are all positioned to face each other on a straight line between the support arms when viewed from the tip end side of the inclined rotation shaft; Furthermore, the food heating and mixing machine according to claim 1, characterized in that the first set attached to the upper position of the inclined rotating shaft via the support arms and the second set attached to the middle and lower positions of the inclined rotating shaft via the same support arms are arranged in a relationship that maintains a substantially equal and constant cross angle between adjacent support arms.

6. A first set of scooping blades attached to an upper stage of the inclined rotating shaft and a second set of scooping blades attached to a middle stage and a lower stage of the inclined rotating shaft are arranged so that adjacent pairs of scooping blades overlap each other by a certain amount, The food material heating and mixing device according to claim 1, characterized in that the second set of crushing blades attached to the middle and lower positions of the inclined rotating shaft are also arranged so that adjacent pairs of the crushing blades overlap each other by a certain amount.

7. The tip of the inclined rotating shaft is inserted toward the inside of the food storage pot at an inclined state that maintains an intersection angle of 30 to 35 degrees with the flat bottom surface of the food storage pot, The food heating and stirring device as described in claim 1, characterized in that the overall stirring area of ​​the food ingredients caused by the rotation of the stirring blades attached to the inclined rotating shaft is limited to an eccentric portion that occupies approximately half of the inner bottom surface of the food ingredient storage pot.

8. The second set of scooping blades and the second set of crushing blades are attached to the middle and lower positions of the inclined rotation shaft, respectively, and are shaped to be approximately the same size as each other, 2. The food heating and mixing device according to claim 1, wherein the first set of scooping blades attached to the upper position of the inclined rotating shaft are shaped to be larger than the second set of scooping blades.

9. In addition to the inclined rotating shaft that is inserted into the inside of the food storage pot as the rotating shaft of the stirring blade, a vertical rotating shaft that is suspended toward an eccentric part inside the food storage pot and is used alternatively to the inclined rotating shaft is also provided.

2. The food material heating and mixing device according to claim 1, wherein a second mixing blade different from the first mixing blade attached to the inclined rotating shaft is attached to the tip of the vertical rotating shaft.

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