JPWO2008149450A1 - Fully automatic rice cooker - Google Patents

Abstract

(Summary) (Problem) A fully automatic rice cooker with a small size and a simple configuration suitable for use in general households, which does not cause damage to the rice during washing and can also wash the pot after use. Provided. (Solution) A rice cooker body having an opening on the upper surface and a space communicating with the opening, a lid disposed on the top of the rice cooker body and capable of opening and closing the opening, and the opening An outer pot that is accommodated and fixed in the space, a substantially bottomed cylindrical inner pot that is supported in the outer pot and accommodates an object to be cooked such as rice, and a heating means that heats the inner pot. A fully automatic rice cooker that is connected to the approximate center of the bottom of the inner pot and rotates the inner pot rotating means for rotating the inner pot, a rotation control means for controlling the inner pot rotating means, and water in the inner pot. Liquid supply means for supplying liquid, etc., inner pot cleaning means for cleaning the inside of the inner pot, and a part of the liquid and / or to-be-cooked food supplied by the liquid supply means and the inner pot cleaning means from the inner pot It is a fully automatic rice cooker provided with the discharge means to discharge. (Selection diagram) FIG.

Description

  The present invention relates to a fully automatic rice cooker, and more specifically, to a fully automatic rice cooker that can perform all the steps up to washing of a pot after use in addition to washing rice and rice. is there.

Conventional rice cookers used in general households have only a rice cooking function and a function to keep the cooked rice warm, and the processes before and after that, that is, washing the rice and washing the pot after use, etc. It is common to be done by a person.
Since this human process requires time and effort in addition to this, it is very troublesome for those who are physically handicapped or who are busy with work. In addition, it can be said that even this process is difficult for those who have inconvenience in their hands due to injuries or disabilities.
For this reason, many techniques for fully automatic rice cookers have been proposed.

  As such a technique, for example, the following Patent Document 1 includes a rice storage tank, a rice washing unit, and a rice cooking unit, and has rice transfer means between them, and further controls each step of rice washing, transfer, and rice cooking. A fully automatic rice cooker provided with a control means to detect the amount of remaining rice in the rice storage tank and the output of the sensor to be directly input to a terminal in a rice grain handling store A fully automatic rice cooker configured by having a connected network control unit is disclosed.

However, in such a rice cooker, since the rice storage tank, the rice washing part, and the rice cooking part are each constituted separately, the number of components increases, and in addition, each of the rice storage tank, the rice washing part, and the rice cooking part Since a connecting path is required, the rice cooker becomes very large as a whole, and there is a problem in terms of installation space restrictions when used in a general household.
Moreover, since a control means is required for each of rice washing, transfer, and rice cooking, and further network control is required, the control mechanism becomes very complicated.

  On the other hand, in Patent Document 2 below, a container for containing rice, a bottom container having an opening accommodated in the container, a screw for washing rice provided in the bottom container through the opening, and a screw for washing rice are provided. It has a motor to rotate, water is poured by providing a water intake and a diffusion valve in the inner lid, and by setting the rice cooking amount and rice cooking condition with the switch operation part, all the rice cooking is performed by controlling the water intake, water level and drainage An automatic rice cooker is disclosed.

However, such a rice cooker is very small compared to the technique disclosed in Patent Document 1 described above, but because the rice is washed with a screw, there is a very high possibility that the rice will break in this rice washing process. This leads to a loss of the taste of cooked rice.
Also, when cooking with this configuration, the rice is cooked so as to cover the screw for washing the rice, so this screw gets in the way when the user disguises the rice, and in some cases, the screw is injured There is a fear.

  In any of the above-described patent documents, the washing of the pot after use of the rice cooker must be performed manually.

Japanese Patent Laid-Open No. 05-228054 JP 2001-218664 A

  The present invention has been made to solve the above problems, has a simple structure, is a small size suitable for use in a general household, and does not cause damage to the rice during washing, In addition, it aims at providing the fully automatic rice cooker which can also wash | clean the pot after use.

  The invention which concerns on Claim 1 has an opening part in the upper surface, and a rice cooker main body provided with the space connected to this opening part, and the lid | cover which is arrange | positioned at the upper part of this rice cooker main body, and can open and close the said opening part A body, an outer pot accommodated and fixed in the space through the opening, a substantially bottomed cylindrical inner pot that is supported in the outer pot and accommodates an object to be cooked such as rice, A fully automatic rice cooker comprising a heating means for heating the inner pot, wherein the inner pot rotating means is connected to the approximate center of the bottom of the inner pot and rotates the inner pot, and the inner pot rotation A rotation control means for controlling the means, a liquid supply means for supplying a liquid such as water into the inner pot, an inner pot cleaning means for cleaning the inner pot, the liquid supply means and the inner pot cleaning means. Discharging means for discharging a supplied liquid and / or a part of the cooking object from the inner pot; The inner hook discharge hole formed near the bottom inner surface of the inner hook and near the outer periphery of the inner hook; and the lowermost inner surface of the bottom pot and near the outer periphery of the bottom; A first inner hook discharge hole formed on the rotation path of the inner hook, and at least two outer hook discharge holes are arranged so as to face each other across the center of the bottom of the inner hook. The first inner hook discharge hole and the second inner hook discharge hole formed at the same height position at the bottom, and the outer hook discharge hole is located on the rotation track of the first inner hook discharge hole. A first outer hook discharge hole arranged at the bottom, and a second outer hook arranged at the same height at the bottom of the first outer hook discharge hole and on the rotation track of the second inner hook discharge hole. An outer pot discharge hole, and the rotation control means is used to drain the liquid when the washing process is completed. Aligning the first inner pot discharge hole with the first outer pot discharge hole, the second inner pot discharge hole for discharging the liquid and a part of the cooking object when the cleaning of the inner pot is completed. And the second outer pot discharge hole are matched, and the inner pot rotating means is controlled so that the inner pot discharge hole and the outer pot discharge hole do not match in the washing and washing steps. It relates to a fully automatic rice cooker.

  The invention according to claim 2 relates to the fully automatic rice cooker according to claim 1, wherein the rotation control means controls the inner hook rotating means so as to reciprocate the inner hook.

The invention according to claim 3 is characterized in that the inner hook cleaning means is a rod-shaped main rotating member that is rotatably disposed at substantially the center of the lid, and is rotatably disposed on the main rotating member. The full-automatic rice cooker according to claim 1 or 2, comprising a rod-like sub-rotating member having a plurality of liquid injection ports communicating with the liquid supply means.

  According to a fourth aspect of the present invention, the heating means is in contact with the inner pot on the upper heating means disposed on the surface of the lid body on the opening side of the rice cooker body, and on the inner surface of the outer bottom of the outer pot. Lower heating means disposed on the outer surface of the outer pot bottom and / or lower heating means disposed on the outer surface of the inner pot bottom and driven in the axial direction of the inner pot to make contact with and separate from the inner pot bottom And a fully automatic rice cooker according to any one of claims 1 to 3.

  According to a fifth aspect of the present invention, in the outer surface of the inner hook bottom portion, the first and second inner hook discharge holes and the first and second outer hook discharge holes are covered and the inner pot bottom outer surface and the outer hook are covered. The fully automatic rice cooker according to any one of claims 1 to 4, further comprising a waterproof wall that seals between the bottom inner surface.

  According to a sixth aspect of the present invention, at least the bottom section of the inner hook of the outer hook and the inner hook rises while gently tilting from the inner hook discharge hole toward the inner hook shaft center. The fully automatic rice cooker according to any one of claims 1 to 5, wherein the rice cooker has a substantially semicircular shape.

  The invention according to claim 7 is recessed toward the inner surface of the inner hook formed on the outer surface side of the inner hook at the outer peripheral position and the inner peripheral position from the region where the first and second inner hook discharge holes are formed. An annular concave portion and an annular convex portion projecting in the inner hook direction formed on the inner side of the outer hook at the outer peripheral position and the inner peripheral position than the areas where the first and second outer hook discharge holes are formed are formed. The fully annular rice cooker according to any one of claims 1 to 6, wherein the annular concave portion and the annular convex portion are fitted to each other.

  According to an eighth aspect of the present invention, the opening end of the outer hook is curved outward in a J-shape, and the opening end of the inner hook is curved outward in a substantially square shape. The fully automatic rice cooker according to any one of claims 1 to 7, wherein the outer peripheral edge of the pot and the outer pot are formed so as to be wound around each other.

  The invention according to claim 9 is characterized in that a drainage groove is formed by bringing the rice cooker body into close contact with the side surface of the outer pot so as to form a recess in the vicinity of the outer pot opening, and the drainage groove has a drain hole. Is provided with the fully-automatic rice cooker in any one of Claims 1 thru | or 8 characterized by the above-mentioned.

  The invention according to claim 10 is characterized in that, after the inner pot cleaning step by the inner pot cleaning means and the inner pot drying step by the heating means, the inner pot rotating means further rotates the inner pot, The fully automatic rice cooker according to any one of claims 1 to 9, wherein the inner pot cleaning means sprays water a plurality of times and then dries the inner pot again by the heating means.

According to the first aspect of the present invention, the inner hook rotating means connected to the approximate center of the inner hook bottom and rotating the inner hook, the rotation control means for controlling the inner hook rotating means, A liquid supply means for supplying a liquid such as water, an inner pot cleaning means for cleaning the inside of the inner pot, a portion of the liquid supplied by the liquid supply means and the inner pot cleaning means and / or an object to be cooked In addition to conventional rice cooking, it is possible to wash the rice and wash the used kettle with a simple and small configuration.
The discharge means includes an inner hook discharge hole formed at the bottom inner surface of the inner hook and near the bottom outer periphery, and a rotation track of the inner pot discharge hole formed at the bottom inner surface of the outer hook and near the bottom outer periphery. A first inner hook discharge hole formed on the outer hook discharge hole, the at least two inner hook discharge holes being arranged to face each other across the center of the bottom of the inner hook; It consists of an inner hook discharge hole and a second inner hook discharge hole arranged at the same height at the bottom, and the outer hook discharge hole is arranged on the rotation track of the first inner hook discharge hole. The first outer hook discharge hole, and the second outer hook discharge formed at the same height at the bottom of the first outer hook discharge hole and on the rotation track of the second inner hook discharge hole. The first inner pot is configured to drain the liquid when the washing process is completed. The second inner pot discharge hole and the second outer hole are discharged to match the outlet hole and the first outer pot discharge hole and to discharge the liquid and a part of the cooking object when the cleaning of the inner pot is completed. Sharpening soup in washing rice by matching the outer pot discharge hole and controlling the inner pot rotating means so that the inner pot discharge hole and the outer pot discharge hole do not match in the washing and washing process. It becomes possible to reliably discharge the washing water and the residue by washing the inner pot.

  According to the second aspect of the invention, by controlling the inner hook rotating means so that the rotation control means causes the inner hook to reciprocate, the efficiency of washing the rice or washing the used hook can be remarkably improved. It becomes possible.

  According to the third aspect of the present invention, the inner hook cleaning means is a rod-like main rotating member that is rotatably disposed substantially at the center of the lid, and is rotatably disposed on the main rotating member and liquid. By comprising a rod-like sub-rotating member having a plurality of liquid ejection ports communicating with the supply means, it becomes possible to perform liquid ejection over the entire area of the inner pot, and the inner pot can be cleaned efficiently.

  According to the invention which concerns on Claim 4, a heating means is contact | abutted with the said inner pot in the upper heating means arrange | positioned by the surface by the side of the opening part of the said rice cooker main body of a cover body, and an outer pot bottom part inner surface. Lower heating means disposed on the outer surface of the outer bottom of the outer hook and / or lower heating means disposed on the outer surface of the inner hook bottom and driven in the axial direction of the inner hook to abut against and separate from the inner hook bottom. By having it, heating from the upper and lower sides of the inner pot becomes possible, and the residue can be efficiently peeled off in the cleaning of the inner pot. Further, after the cleaning, the inner pot can be efficiently dried in a short time. Further, the lower heating means is driven in the axial direction of the inner hook and makes contact with and separates from the bottom of the inner hook so that the friction between the inner hook and the lower heating means during the rotation of the inner hook is achieved. Occurrence can be prevented.

  According to the invention according to claim 5, on the outer surface of the inner hook bottom portion, the first and second inner hook discharge holes and the first and second outer hook discharge holes are covered and the inner pot bottom outer surface and the outer pot bottom inner surface are covered. By providing a waterproof wall that seals between the two, it is possible to prevent water leakage into the rice cooker body when washing rice, cooking rice, and washing the pot after use.

  According to the sixth aspect of the invention, the vertical cross-sectional shape of at least the bottom of the inner hook and the inner hook rises while gently tilting from the inner hook discharge hole toward the inner hook shaft center. Due to the semicircular shape, it becomes possible to smoothly drain the sharpening juice in the washed rice, the washing water in the inner pot cleaning and the residue from the inner pot at the time of washing rice or washing drainage.

  According to the invention which concerns on Claim 7, it is dented in the inner surface direction of the said inner hook formed in an inner hook outer surface side in an outer peripheral position and an inner peripheral position rather than the area | region in which a 1st and 2nd inner hook discharge hole is formed. An annular recess, and an annular projection protruding in the inner hook direction formed on the inner surface side of the outer hook at the outer peripheral position and the inner peripheral position from the region where the first and second outer hook discharge holes are formed, By fitting the annular concave portion and the annular convex portion, it becomes possible to more reliably prevent water leakage into the rice cooker body. Further, when the inner hook is rotating, it is possible to control the inner hook trajectory without difficulty, and in addition, it is possible to reduce the vibration of the inner hook.

  According to the eighth aspect of the present invention, the opening end of the outer hook is curved outward in a J-shape, and the opening end of the inner hook is curved outward in a substantially letter-shaped cross section. And the outer peripheral edge of the outer hook are wound around each other, so that it is possible to prevent the water vapor containing the cleaning agent and the residue from entering the clearance generated between the outer hook and the inner hook. it can.

  According to the ninth aspect of the invention, the rice cooker main body is in close contact with the side surface of the outer pot and in the vicinity of the outer pot opening so as to form an annular recess, and the drain groove is formed. By being provided, it is possible to clean up to the outer edge of the opening portion of the inner hook, and it is possible to drain the cleaning water and the residue flowing out from the inner pot to the outside.

  According to the invention which concerns on Claim 10, after the washing | cleaning process of the said inner hook by an inner hook washing | cleaning means and the drying process of the inner hook by a heating means, the inner hook washing | cleaning means is further rotated while an inner hook rotation means rotates an inner hook. By spraying water several times and then drying the inner pot again with heating means, it becomes easier to peel off the residue once dried, so it is possible to discharge the residue in the inner pot more completely Become.

Hereinafter, preferred embodiments of a fully automatic rice cooker according to the present invention will be described with reference to the drawings.
FIG. 1 is a schematic partial cross-sectional view showing an example of a fully automatic rice cooker according to the present invention.
FIG. 2 is a partially enlarged cross-sectional view of the vicinity of the lower portion of the opening in FIG.
FIG. 3 is a block diagram showing a control mode of the fully automatic rice cooker according to the present invention.

The fully automatic rice cooker (R) according to the present invention makes it possible to perform the steps up to washing rice, cooking rice, and washing after use in a fully automatic manner as long as rice is prepared.
The fully automatic rice cooker (R) has an opening (1a) on the top surface and a rice cooker body (1) having a space (1b) communicating with the opening (1a), and an upper portion of the rice cooker body (1). A lid body (2) that can be opened and closed and that can open and close the opening (1a), an outer hook (3) that is housed and fixed in the space (1b) via the opening (1a), and an outer hook (3) An inner pot (4) that is supported in the container and accommodates a cooked item such as rice, and a heating means (5) that heats the inner pot (4) are provided.

  The fully automatic rice cooker (R) is connected to the substantially center of the bottom of the inner pot (4) and rotates the inner pot (4) and the inner pot rotating means (6). A rotation control means (7) for controlling the pressure, a liquid supply means (8) for supplying a liquid such as water into the inner pot (4), an inner pot cleaning means (9) for cleaning the inner pot (4), The liquid supply means (8) and the inner pot cleaning means (9) are provided with discharge means (10) for discharging a part of the liquid and / or the food to be cooked from the inner pot (4).

Here, the heating means (5), inner pot rotating means (6), rotation control means (7), liquid supply means (8), inner pot cleaning means (9) and discharge means (10) are shown in FIG. As described above, the central processing unit (A), that is, the CPU reads out a predetermined computer program so that the sequence control is performed in a lump, thereby achieving full automation.
In addition, this central processing part (A) is also performing the rice cooking and heat retention control which the conventional rice cooker has.
The above configuration will be specifically described below.

As described above, the rice cooker main body (1) has a constant space (1b) formed through the opening (1a) on the upper surface thereof, and an outer panel is provided with an operation panel (not shown). . Moreover, the rice cooker main body (1) accommodates heat insulating materials, such as glass wool, between the space (1b) and the rice cooker main body (1) outer surface, and heat insulation between the inside and the outside of the rice cooker main body (1). I am trying.
The shape of the rice cooker body (1) is not particularly limited, and for example, a generally used bottomed cylindrical shape or a generally bottomed rectangular shape may be employed.

FIG. 2 is a partially enlarged cross-sectional view of the vicinity of the lower portion of the opening in FIG. The rice cooker main body (1) is in close contact with the side surface of the outer hook (3) and in the vicinity of the outer pot opening so as to form a concave portion in an annular shape in order to prevent foreign matter from entering the space (1b). The concave portion formed in an annular shape is used as a drainage groove (13). By providing the drainage groove (13), the outer edge of the opening of the inner hook (4) can be cleaned in the inner pot cleaning step described later. The intimate part of the rice cooker body (1) is more preferably provided with a slight inclination in the direction of the lid in order to form the drainage groove (13), but it may be in intimate contact with the horizontal. The surface from the surface of the rice cooker body (1) in contact with the lid (2) to the front of the surface in contact with the outer pot is made of stainless steel, and the close contact portion is provided with packing or silicone rubber for waterproofing.
At least one drainage groove (13) is provided, and when two or more drainage grooves are provided, the drainage groove (13) is preferably provided at a position facing the opening center of the rice cooker body (1). The drain groove (13) is preferably provided with a gentle slope so that the drain hole (14) is at the lowest position. Therefore, when there is only one drain hole (14), the slope is provided so that the position of the drain groove facing the drain hole (14) across the center of the opening of the rice cooker body (1) is the highest. Is preferred. The size of the drain hole (13) is not particularly limited, but is preferably about 2.5 to 3.5 cm in the circumferential direction and about 1.5 to 2.5 cm in the radial direction. The drain hole (13) is formed of packing or silicone rubber to prevent water leakage, and is connected to the left food receiving part (1d) via the drain pipe (15), and a part of the washing water and / or the food to be cooked is discharged. It is discharged to the outside through the outlet (1c).

Next, the lid (2) is disposed so as to be rotatable with respect to the upper portion of the rice cooker body (1) so that the opening (1a) can be opened and closed. The lid cleaning means (9) is provided on the lid (2).
At this time, considering the weight of the lid (2), a hinge having excellent rigidity can be used as a rotating mechanism (not shown) for the rice cooker body (1) and the lid (2). preferable.
Moreover, when closing an opening part (1a) with a cover body (2), in order to aim at internal sealing, in the rice cooker main body (1) and / or a cover body (2), the surface which mutually contacts It is preferable to provide packing. The packing that seals the lid (2) and the rice cooker body (1) is preferably in close contact so as not to be rubbed by vibration during closing when the inner pot rotates as described later.
Needless to say, when the opening (1a) is closed, the rice cooker body (1) and the lid (2) are fixed by a known lock member (not shown) used in a conventional rice cooker. Needless to say, a known vent (not shown) is provided in the lid (2).
The specific configurations of the liquid supply means (8) and the inner pot cleaning means (9) will be described later.

By the above, the main-body part of the fully automatic rice cooker which concerns on this invention is formed.
In addition, although there is no limitation in particular as a raw material which comprises a rice cooker main body (1) and a cover body (2), synthetic resins, such as metals, such as stainless steel which are excellent in corrosion resistance, or a polypropylene can be illustrated.

FIG. 4 is a schematic view showing an outer pot provided in the fully automatic rice cooker according to the present invention, (a) is a plan view thereof, and (b) is a cross-sectional view taken along line AA thereof.
Moreover, FIG. 5 is the schematic which shows the inner pot with which the fully automatic rice cooker which concerns on this invention is equipped, (a) is the top view, (b) is the sectional view on the AA line. .
6A and 6B are plan views of (a) an outer pot and (b) an inner pot provided in another form of the fully automatic rice cooker according to the present invention.
In addition, as a material of the outer pot and inner pot mentioned below, it can select suitably from what is used for the conventional rice cooker.

As shown in FIG. 4, the outer hook (3) is a substantially bottomed cylindrical body, and has a substantially truncated cone shape that rises while gently tilting toward the opening of the outer hook (3) at the center of the bottom. A frustoconical portion is formed.
A through hole (31) is formed in most of the upper surface of the truncated cone portion.
Further, in the outer hook (3), a fine mesh shape on the circumference passing through the vicinity of the center between the position near the outer periphery of the bottom and the end position of the frustoconical portion, and facing the center of the bottom. Two first outer hook discharge holes (32) (for example, about 0.02 to 0.5 mm) are formed.
Further, in the outer hook (3), on the straight line connecting the first outer hook discharge holes (32), the outer hook (3) is positioned outside the first outer hook discharge holes (32). A second outer hook discharge hole (33) (hole diameter of about 15 to 25 mm) is formed on the side surface.
The first outer pot discharge hole (32) is connected to the discharge port (1c) provided in the rice cooker body (1) through the first discharge path (32a), and the second outer pot discharge hole (33) is The second discharge path (33a) is connected to the discharge port (1c) through the leftover food receiving part (1d). (See Figure 1)

As shown in FIG. 5, the inner hook (4) is a substantially bottomed cylindrical body, and has a substantially hemispherical shape that rises while gently tilting toward the opening of the inner hook (4) at the center of the bottom. A hemispherical portion is formed.
Further, the inner hook (4) has a fine mesh shape on the circumference passing through the center between the position in the vicinity of the outer periphery of the bottom and the end position of the hemispherical portion and facing the center of the bottom. Two first inner hook discharge holes (41) (for example, about 0.02 to 0.5 mm) are formed.
The first inner hook discharge hole (41) is positioned substantially on the same circumference as the first outer hook discharge hole (32) when the inner hook (4) is housed in the outer hook (3). Form.

  Further, the inner hook (4) has an outer side of each of the first inner hook discharge holes (41) on a straight line whose phase is changed by a predetermined angle from a straight line connecting the first inner hook discharge holes (41). And a second inner hook discharge hole (42) (having a hole diameter of about 15 to 25 mm) is formed on the inner hook (4) side surface.

Thus, when the inner hook (3) is rotated, the first outer hook discharge hole (32) and the first inner hook discharge hole (41) coincide with each other (hereinafter referred to as the first section), and the second A section where the outer pot discharge hole (33) and the second inner pot discharge hole (42) are matched (hereinafter referred to as the second section) is formed independently.
At this time, when one section is formed in each section, for example, the first outer pot discharge hole (32) and the first inner pot discharge hole (41) are aligned so that the other section is not formed. When the first inner hook discharge hole (33) and the second inner hook discharge hole (42) do not coincide with each other, the first inner hook discharge hole (41) and the second inner hook discharge hole ( 42) is set. (For example, about 15 to 25 degrees)
Thereby, the discharge means (10) is configured.
Here, when forming the first compartment and the second compartment, the rotation of the inner hook (4) is controlled by the central processing unit (A) so that the first compartment is always formed first. Constitute. (Counterclockwise direction in FIG. 5)
In FIG. 1, for convenience of explanation, the first section and the second section are formed and described.

Therefore, when the first compartment and the second compartment are not formed at the same time and the inner hook (4) is accommodated in the outer hook (3), the second inner hook discharge hole (42) If the hole (33) and the bottom can be formed to have substantially the same height, the first inner hook discharge hole (41), the second inner hook discharge hole (42), the first outer hook discharge hole (31), The position of the second outer hook discharge hole (32) is not particularly limited.
For example, as shown in FIG. 6A, the position of the second outer hook discharge hole (32) is the position outside the first outer hook discharge hole (32) and the bottom of the second inner hook discharge hole (42). As shown in FIG. 6 (b), the position is on the straight line whose phase is changed by a predetermined angle from the straight line connecting each first inner hook discharge hole (41) to the position outside the first inner hook discharge hole and the bottom. Can be formed.
4, 5, and 6, the reverse configuration, the first outer hook discharge hole (32), the first inner hook discharge hole (41) outward, and the second outer hook discharge hole (33). The second inner pot discharge hole (42) may be formed inside.

Further, as shown in FIG. 2, the open end of the inner hook (4) is curved in a substantially cross-sectional shape toward the outside in the radial direction, and the open end of the outer hook (4) is also directed outward in the radial direction. It is preferable that the inner hook and the outer hook bend around each other so as to be bent in a J shape. Role of preventing foreign matter from entering the clearance between the outer hook (3) and the inner hook (4) and preventing the water vapor dissolved in the cleaning agent and the residue from entering the clearance in the inner pot cleaning process described later. Because it fulfills. The portion formed so that the inner hook and the outer hook are wound together is formed with a slight gap in consideration of friction due to rotation, and the curved portion end portion avoids friction due to rotation. Because of this, it is rounded. In the vicinity of the opening portions of the outer hook (3) and the inner hook (4), it is preferable that the respective opening portions are widened to be inclined, but there is no problem even if they are formed vertically.
In FIGS. 1 and 2, the open ends of the inner hook (4) and the outer hook (3) are shown in a preferred embodiment, but FIG. 4, FIG. 5, and FIG. About FIG. 12, other embodiment is illustrated about the opening edge part of an inner hook (4) and an outer hook (3).

Further, a fitting portion (43) into which a shaft of the inner hook rotating means to be described later is fitted is formed at a substantially central portion of the outer surface of the bottom portion of the inner hook (4).
Further, on the inner surface side of the bottom of the inner hook (4), as shown in FIG. 5 (a), a plurality of (6 in the illustrated example) rod-like projections (45) (projection height of about 1.5 cm). ) Is formed, and when the inner pot (4) rotates with water filled therein, it is possible to efficiently generate an internal water flow. This makes it possible to improve the efficiency of washing rice.
It is also possible to improve the efficiency by providing a plurality of the rod-like protrusions (45) on the inner surface of the inner hook (4).
In addition, as shown in the enlarged portion of FIG. 5A, it is preferable that the end portion of the rod-shaped protrusion (45) is rounded.

The first section is used when draining the sharpening water in the washing process. Here, since the first inner pot discharge hole (41) is formed in a fine mesh shape, it is possible to drain only the polishing water while holding the sharpened rice in the inner pot (4). The sharpening water discharged from the first section is discharged out of the rice cooker main body through the discharge port (1c).
The mesh of the first outer hook discharge hole (32) that coincides with the first inner hook discharge hole (41) is preferably slightly rougher than that of the first inner hook discharge hole (41). . Thereby, it becomes possible to drain the polishing water smoothly.

The second section is used when discharging washing water and residues such as rice adhering to the inner surface of the inner pot (4) in the washing process. At this time, since the second inner pot discharge hole (42) and the second outer pot discharge hole (33) are formed with a hole diameter of about 15 to 25 mm, not only the washing water in the inner pot (4) but also rice Residues such as can be discharged without problems.
The second inner hook discharge hole (42) has a lowermost portion substantially at the same position as the lowermost inner surface of the inner bottom of the inner hook (4) (the position where the first inner hook discharge hole (41) is formed). It is preferable to configure. Further, the second outer hook discharge hole (33) has the lowermost portion on the inner surface of the outer hook (4) substantially at the same position as the lowermost portion of the second inner hook discharge hole (42), and the outer hook (4) It is preferable to configure to incline downward toward the outer surface. Thereby, the contents in the inner hook (4) can be reliably discharged.
As described above, the contents discharged from the second section are accommodated in the remaining rice receiving portion (1d). This remaining rice receiving part (1d) is detachably provided on the rice cooker body (1), and is connected to the discharge port (1c) through a mesh hole (not shown), such as washing water. A liquid part is discharged | emitted from a discharge port (1c) through a left rice receiving part (1d), and residues, such as rice, are accommodated in a left rice receiving part (1d). As a result, it is possible to reduce time and effort in the so-called garbage disposal.
In addition, the capacity | capacitance of the remaining rice receiving part (1d) is comprised so that at least about 1 rice can be accommodated so that residues, such as rice, may not overflow from the remaining rice receiving part (1d).

In the above example, in the inner hook (4), the phases of the first inner hook discharge hole (41) and the second inner hook discharge hole (42) are changed. It is of course possible to reverse the positional relationship of the discharge holes between the outer hook (3) and the inner hook (4). At this time, it goes without saying that the rotation control is also changed to form the first section first.
Moreover, although the number of the discharge holes of each of the outer hook (3) and the inner hook (4) is two, it is not particularly limited to this. However, if the number of each discharge hole is one, there is a possibility that the contents may not be discharged smoothly. At this time, considering that the rice cooker main body (1) is not installed horizontally, the discharge holes (32, 33) of the outer pot (3) are connected to the rice cooker main body (1) from the front to the rear. The outer pot (3) is fixed to the rice cooker body (1) in a state where the phase is changed by a predetermined angle (for example, about 15 to 30 degrees clockwise or counterclockwise) with respect to the direction of.
Moreover, although the shape of the 1st outer hook discharge hole (32) and the 1st inner hook discharge hole (41) was made into fine mesh shape, this may open many small diameter holes over one division. Then, a fine mesh may be attached to the hole formed in the one section.

Next, the heating means (5) will be described.
FIG. 7: is the schematic which shows the upper heating means in the cover body with which the fully automatic rice cooker concerning this invention is equipped, (a) is a front view, (b) is a bottom view.
Moreover, FIG. 8 is the schematic which shows the lower heating means in the inner pot with which the fully automatic rice cooker concerning this invention is equipped, (a) is front sectional drawing, (b) is a bottom view.
The heating means (5) includes an upper heating means (51) disposed on the opening (1a) side surface of the rice cooker body (1) of the lid (2), and an inner pot (4) at the bottom outer surface. It is comprised from the lower heating means (52) arrange | positioned inside from one inner hook discharge hole (41).

The upper heating means (51) is arranged on the surface of the lid (2) on the side of the opening (1a) of the rice cooker body (1), and a part of the annular shape is notched in the bottom view. It has a shape. (Refer FIG.7 (b)) Moreover, the outer diameter of the upper heating means (51) is formed smaller than the outer diameter of an opening part (1a).
The lower heating means (52) is disposed so as to be accommodated in the hemispherical portion formed at the bottom of the inner hook (4), and the lower heating means (52) is disposed on the outer surface of the bottom of the inner hook (4). A recess (44) into which is fitted is formed. This makes it possible to efficiently heat the inner pot (4) by the lower heating means (52). In FIG. 8, the shape of the lower heating means (52) is formed in a circular shape in the bottom view and an upward U-shape in the front cross-section by bonding an insulator to the lower portion of the heater portion in order to maintain a horizontal state. ing. The shape of the lower heating means (52) is not particularly limited to an upward U shape as long as it fits into the inner hook (4), and an insulator is joined to the piston or the like connected to the heater. In the case where it is used, or when the piston itself is an insulator, an insulator is not required below the heater portion.
The tip of the lower heating means (52) is preferably substantially parallel to the opening surface of the inner hook (4) as shown in FIG. 8 (a), but is not particularly limited thereto. The inner hook (4) can be changed as appropriate according to the shape of the bottom.
Moreover, you may make it the structure which heats an inner pot (4) indirectly via a material (for example, copper and aluminum) with high heat conductivity between a lower heating means (52) and an inner pot (4). . At this time, the shaft around the inner rotary member rotating means, which will be described later, is covered with a material having a low thermal conductivity (for example, silicone or expanded polystyrene) so that a predetermined amount of gap is formed from the material having a high thermal conductivity. It is preferable to do.
By disposing the lower heating means (52) on the outer surface of the bottom of the outer hook that is in contact with the inner hook at the inner surface of the outer hook, the inner hook (4) is indirectly heated via the outer hook (3). You may make it the structure to carry out. Furthermore, among the above-described lower heating means (52), a configuration in which the lower heating means (52) is provided in the inner hook (4) and a configuration in which the lower heating means (52) is provided in the outer hook (3) may be provided simultaneously. .
In addition, what is necessary is just to use a well-known heater as an upper heating means (51) and a lower heating means (52), for example, a sheathed heater, an IH heater, etc. can be mentioned.
The upper heating means (51) and the lower heating means (52) are more preferably in the form of a sheathed heater embedded in a metal such as aluminum.

The heating means (5) is configured as described above.
Thereby, since heating from the upper and lower sides of the inner pot (4) becomes possible, the inner pot (4) can be efficiently dried in a short time after the inner pot (4) is washed.
In addition, when washing the inner pot (4), a small amount of washing water is supplied and steamed by the upper and lower heating means (51, 52), so that residues such as rice adhering to the inner pot (4) are efficiently peeled off. It becomes possible. At this time, it is possible to further improve the peeling efficiency by providing a plurality of minute hemispherical projections (not shown) on the inner surface of the inner hook (4).
In addition, when performing rice cooking work, you may comprise so that only a lower heating means (52) may be used, or it is comprised so that both an upper heating means (51) and a lower heating means (52) may be used. You may do it.

Further, the lower heating means (52) is driven in the axial direction of the inner hook (4) so as to make contact with and separate from the bottom of the inner hook (4), whereby the inner hook (4) By separating the two when rotating, the friction between the inner hook (4) and the lower heating means (52) can be prevented, and the inner hook (4) and the lower heating means (52) are prevented from being damaged. It becomes possible.
The contact and separation of the lower heating means (52) with respect to the bottom of the inner hook (4) is controlled by the central processing unit (A) using, for example, a known air piston, hydraulic piston, or motor and pinion rack. Should be done.
Needless to say, the parallel state of the lower heating means (52) is maintained during the contact-separation operation.
In the structure in which the lower heating means (52) is disposed on the outer surface of the outer pot bottom portion that is in contact with the inner hook on the inner surface of the outer pot bottom portion, the outer pot (3) with which the lower heating means (52) is in contact is Since it does not rotate and is fixed to the rice cooker body (1), it is not necessary to cause the lower heating means (52) to make contact and separation.
Insulation after rice cooking may be performed by lowering the heating temperature of the lower heating means (52), or may be performed away from the inner pot (4) while maintaining the heating temperature.
The heating temperature may be controlled by the central processing unit (A) using a temperature sensor.
Moreover, it is naturally possible to additionally provide a side heating means (53) on the outer surface of the outer pot (3) as seen in a conventional rice cooker. (See Figure 1)
By using the side heating means (53) in combination, it is possible to further improve the above-described heating efficiency during cleaning of the inner pot (4) or during rice cooking.

Next, the inner hook rotation means (6) will be described in detail with reference to FIGS.
The inner hook rotating means (6) is a so-called motor, and its shaft (61) passes between the lower heating means (52), and a bolt or the like is attached to the fitting part (43) at the bottom of the inner hook (4). The inner hook (4) is rotatable.
At this time, in order to prevent the main body of the inner hook rotating means (6) from being heated by the lower heating means (52), there is a gap between the main body of the inner hook rotating means (6) and the lower heating means (52). A heat insulating wall (1e) is provided.
What is necessary is just to comprise this heat insulation wall (1e) by interposing heat insulating materials, such as glass wool, like the rice cooker main body (1).
Needless to say, a key is inserted in the boundary surface between the shaft portion (61) and the fitting portion (43).
Further, in order to smoothly rotate the inner hook (4), it is preferable to provide a bearing such as a ball bearing (not shown) around the shaft portion (61).
In consideration of generation of vibration due to rotation of the inner hook (4), a support member (1f) is provided between the outer hook (3) and the heat insulating wall (1e) to support the outer hook (3). Is preferred. (See Figure 1)

The rotation of the inner hook rotation means (6) is controlled by the rotation control means (7).
The rotation control means (7) is a computer program predetermined by a programming language such as C language, for example, and the central processing section (A) reads it to control the rotation of the inner pot rotation means (6). To do.
Therefore, it is more preferable that the inner hook rotating means (6) described above is configured as a so-called servo motor including the rotation control means (7).

Next, a specific control operation of the inner hook rotation means (6) by the rotation control means (7) will be described.
First, in the step of washing rice, it is possible to efficiently wash the rice by controlling the inner hook rotating means (6) so as to reciprocate and rotate the inner hook (4) in plural sets (for example, 5 to 7 sets). Can be saved. At this time, the driving range of the reciprocating rotation will be described with reference to FIGS. 4 and 5. The first inner hook discharge hole (41) of the inner hook (4) is clockwise from the first section. Control is performed so that a predetermined angle, for example, 105 to 135 °, is clockwise from this position with reference to a state in which the phase is changed by the first section (hereinafter referred to as the third section). Thereby, since the said 1st division and the said 2nd division are not formed in the case of the said reciprocating rotation, it can prevent discharging | emitting a content from the inner pot (4) in a rice washing process.

Next, when the polishing water is drained after washing the rice, the inner pot rotating means (6) is rotationally controlled so that the inner pot (4) is positioned in the first section. Thereby, it becomes possible to drain only the sharpening water while holding the sharpened rice in the inner pot (4).
Further, in the cleaning process of the inner pot (4), it is possible to improve the cleaning efficiency by controlling the inner pot rotating means (6) so as to perform the same reciprocating rotational motion as in the rice washing process. Become.
After cleaning the inner pot (4), when discharging the residue such as washing water and rice, the inner pot rotating means (6) is controlled to rotate so that the inner pot (4) is positioned in the second section. To do. Thereby, it becomes possible to discharge | emit residues, such as washing water and rice, reliably.
Note that when the lower heating means (52) performs the contact operation with the inner hook (4), there is a possibility that the inner hook (4) may be lifted. It is preferable that an air piston or the like is provided on the inner hook and the inner hook (4) is indirectly moved up and down.

Next, the liquid supply means (8) and the inner pot cleaning means (9) will be described.
FIG. 9 is a schematic cross-sectional view showing the internal configuration of the lid provided in the fully automatic rice cooker according to the present invention.
Moreover, FIG. 10 is the schematic which shows the rotation member provided in the cover body bottom surface with which the fully automatic rice cooker concerning this invention is equipped, (a) is a front view, (b) is a bottom view. .
FIG. 11 is a schematic view showing a rotating member provided on the bottom surface of a lid provided in a fully automatic rice cooker according to another embodiment of the present invention.
10 and 11, the upper heating means disposed on the bottom surface of the lid body is omitted.

The liquid supply means (8) and the inner pot cleaning means (9) are provided on the lid (2) and communicate with each other via the valve (11). Further, the valve (11) is connected to the water intake (2a) of the lid (2), and a water tap or a water storage tank (not shown) is attached to the water intake (2a). 8) Supply water to the inner pot cleaning means (9).
As the valve (11), for example, an electromagnetic valve is used, and the central processing section (A) controls the switching of the paths of the liquid supply means (8) and the inner pot cleaning means (9) and the water supply amount. You can do it.

The liquid supply means (8) includes a supply path (8a) and a liquid supply port (8b). Water taken from the water intake port (2a) is introduced into the liquid supply port (8b) through the supply path (8a). It is comprised so that it may supply in a hook (4).
The water supplied from the liquid supply means (8) is used in the steps of washing rice and cooking rice, and the supply amount of water is adjusted by the valve (11) according to the steps.

The inner pot cleaning means (9) includes a cleaning tank (91), a liquid heater (92), a high-pressure pump (93), a rotating member (94), and a cleaning path (95) connecting them. The water taken from the intake port (2a) is supplied into the inner pot (4) through these.
The washing tank (91) is filled with a detergent (a well-known dishwashing detergent, etc.), and a predetermined amount of the detergent is injected into the water taken from the water intake (2a) to generate washing water and liquid heating. Feed to heater (92).
The washing water is heated in the liquid heater (92), promotes the mixing efficiency of the detergent and water, is adjusted in pressure through the high-pressure pump (93), and then sent to the supply unit (9a). .
In order to reduce the size of the fully automatic rice cooker (R) according to the present invention, instead of providing the liquid heater (92), a material having high thermal conductivity (for example, aluminum) is used and shared with the upper heater (51). By doing so, the liquid heater (92) can be omitted.

The supply unit (9a) communicates with the rotating member (94) and feeds cleaning water to the rotating member (94).
The rotating member (94) supplies and injects this cleaning water into the inner hook (4), and is a rod-shaped main rotating member (94a) rotatably disposed at the approximate center of the lid (2). And one or more (two in the illustrated example) rotatably disposed on the main rotating member (94a) and a plurality of (fourteen in the illustrated example) liquid ejection ports (94b). It is comprised from the subrotation member (94c). When only one sub-rotating member (94c) is disposed on the main rotating member (94a), the liquid ejection port (94b) is disposed on the side of the main rotating member (94a) where the sub-rotating member (94c) is not disposed. ) Are provided.
Here, it is preferable that the liquid injection ports (94b) have different directions from the horizontal direction to the vertical direction so that the cleaning water can be injected over the entire surface of the inner pot (4).
The rotation of the rotation member (94) can be configured to rotate clockwise or counterclockwise according to the law of inertia by controlling the adjustment of the spray pressure of the washing water.

As shown in FIG. 11, the rotating member (94) may be configured to provide only the main rotating member (94a) without providing the auxiliary rotating member (94c). In FIG. 11 (a), rod-like members having the same length from the center of the rotating body are arranged at three locations at intervals of 120 °, and the positions of the liquid ejection ports (94b) provided in each rod-like member are different. In the same manner, the washing water can be jetted. Moreover, in FIG.11 (b), wash water can be uniformly injected by changing all the length of each rod-shaped member. The rod-shaped member is not limited to three places, and may be two places or four places or more. The number of rotating members (94) is not limited to one in the center of the lid (2), and a plurality of small rotating members (94) are arranged in two or more places as shown in FIGS. May be.

  A sprinkler (not shown) can be used instead of the rotating member (94). The sprinkler preferably has two or three jet outlets.

It is preferable not to use a material that elutes a substance that may adversely affect the human body, such as environmental hormones, because the rotating member (94) and the sprinkler are in contact with hot water vapor during the rice cooking process.
As described above, it is possible to perform liquid injection over the entire area of the inner hook (4), and it is possible to efficiently clean the inner pot.
The above-described injection control is performed by reading out by the central processing unit (A) using a known pressure sensor and computer program.

Next, the further structure of an outer hook (3) and an inner hook (4) is demonstrated.
FIG. 12 is a schematic view showing positions of a waterproof wall, a water brush, and a brush container provided in the fully automatic rice cooker according to the present invention, (a) is an outer pot plan view, and (b) is an inner view. It is a hook bottom view.
FIG. 13 is a partially enlarged view of FIG.

In the region where the discharge holes (32, 33, 41, 42) of the outer pot (3) and the inner pot (4) are formed, the contents are transferred to the outer pot when the inner pot (4) is rotated or cooked during washing and washing. It is preferable to eliminate the clearance between the inner hook (4) and the inner hook (4) so as not to flow between them. However, considering the friction between the hooks when the inner hook (4) rotates, a certain amount (for example, , 0.2, or 0.3 to several mm).
Here, the above-mentioned lifting / lowering movement of the inner pot rotating means (6) is used so that the clearance can be adjusted. A clearance is formed when the inner pot (4) is rotated, and an inner pot ( 4) Make the outer hook (3) substantially contact.
Further, as a compensation for the clearance, a waterproof wall (12) is provided between the inner surface of the bottom of the outer hook (3) and the outer surface of the bottom of the inner hook (4).
The waterproof wall (12) is configured such that a metal wall (for example, stainless steel) having excellent corrosion resistance is covered with an elastic body such as packing, and the first outer pot / inner pot discharge holes (32, 41) and the first Two outer hook / inner hook discharge holes (33, 42) surrounding the periphery of the first waterproof wall (12a) and the outer hole (3) through hole (31) has the same outer diameter and penetrates It is comprised from the cyclic | annular 2nd waterproofing wall (12b) closely_contact | adhered with respect to a hole (31).

The first waterproof wall (12a) is disposed on the outer hook (3) side and is substantially in contact with the outer surface of the inner hook (4) (between the inner pot (4) and the first waterproof wall (12a)). It has a gap of about 0.02 to 0.2, 3 mm). Thereby, even when the inner hook (4) rotates, the clearance between the outer hook (3) and the inner hook (4) can always be sealed.
Further, the second waterproof wall (12b) may be arranged on the heat insulating wall (1e) provided in the above-described rice cooker body (1) so as to be in close contact with the outer surface of the bottom of the inner pot (4). Alternatively, it may be arranged on the outer surface of the bottom of the inner hook (4) so as to be in close contact with only the through hole (31).
With the above configuration, when washing the rice, cooking rice, and cleaning the inner pot (4) after use, friction between the pots, water leakage into the rice cooker body (1), and the like can be prevented.
The elastic body constituting the waterproof wall (12) is made of a material having low heat resistance and excellent heat resistance, for example, heat-resistant packing in consideration of frictional heat due to rotation of the lower heating means (52) and the inner hook (4). Etc. are preferably used.

Further, the inner and outer peripheral positions of the inner hook discharge holes (41, 42) are formed between the first inner hook discharge hole (41) and the second inner hook discharge hole (42). The outer peripheral position and the inner peripheral position than the region where the annular recess (4a) formed in the inner surface direction of the inner hook (4) formed on the outer surface side of the hook (4) and the outer hook discharge holes (32, 33) are formed. And an annular projection (3a) projecting in the direction of the inner hook (4) formed on the inner surface side of the outer hook (3) between the first outer hook discharge hole (32) and the second outer hook discharge hole (32). ) And the annular concave portion (4a) and the annular convex portion (3a) are fitted.
Thereby, it becomes possible to prevent the water leak etc. into the rice cooker main body (1) more reliably. Further, when the inner hook (4) is rotated, the trajectory control of the inner hook (4) can be performed without difficulty, and in addition, the vibration of the inner hook (4) can be reduced.
In addition, since it is desirable that the second outer hook / inner hook discharge hole (33, 42) maintain close contact during the up-and-down movement of the inner hook (4), this is the case in the outer hook (3) and the inner hook (4). The positions to be formed are configured to be parallel to each other. At this time, a slight amount of gap (C) is formed in the fitting portion between the annular recess (4a) and the annular projection (3a) formed at the outer peripheral positions of the outer hook (3) and the inner hook (4). Needless to say.

Further, when water or the like slightly flows into the clearance between the inner hook (4) and the outer hook (3) during rotation of the inner hook (4), the water or the like is prevented from staying in the clearance as shown in FIG. As shown in FIG. 4, it is preferable to provide a water brush (46) on the outer surface of the bottom of the inner hook (4).
The scuff brush (46) changes the phase with the inner hook discharge holes (41, 42) (for example, about 5 to 10 degrees clockwise from the second inner pot discharge hole (42)) and the first waterproof wall ( 12a) is configured to fit inside and to abut the inner surface of the outer hook (3). (See Figure 12)
Thereby, when the inner hook (4) rotates, the water scraping brush (46) can scrape off the water in the clearance.
Also, the phase changes from the outer pot discharge holes (32, 33) on the inner surface of the bottom of the outer pot (3) so that the water scraping brush (46) does not get in the way during the lowering movement of the inner pot rotating means (6) during rice cooking. A brush accommodating portion (34) is formed at a position (for example, about 5 to 15 degrees counterclockwise).
It goes without saying that the inner hook rotating means (6) is controlled by using the position sensor and the rotation control means (7) so that the water scraping brush (46) is positioned in the brush receiving part (34).
Moreover, it is preferable to use a heat-resistant packing or the like that is flexible and has a low gripping force as the material constituting the water brush (46).
Moreover, in order to perform the above-mentioned water scraping more reliably, it is preferable that a part of the vicinity of the inner surface of the outer hook (3) where the discharge holes (32, 33) are formed is slightly depressed.
The fully automatic rice cooker (R) based on this invention is comprised by the above.
In order to reduce friction caused by the rotation of the inner hook (4), silicone oil or the like may be added to the clearance between the outer hook (3) and the inner hook (4). (12) may be omitted and the clearance between the outer hook (3) and the inner hook (4) may be substantially eliminated.

Based on the above structure, the usage example of the fully automatic rice cooker (R) based on this invention is demonstrated.
First, the user weighs a necessary amount of rice, puts it into the inner pot (4), and closes the lid (2).
Next, when the user presses the rice cooking button on the operation panel (not shown), water is supplied from the liquid supply means (8) under the control of the central processing unit (A). 6) Washes the rice by reciprocatingly rotating the inner pot (4).
Thereafter, the inner hook rotating means (6) rotates so as to position the inner hook (4) to the first section, and drains the polishing water. The drained sharpening water is discharged out of the rice cooker body (1) through the discharge port (1c). Thereby, the rice washing process is completed.

Thereafter, a predetermined amount of rice cooking water is again supplied from the liquid supply means (8). (The program is controlled by the central processing unit (A) using a known weight sensor or water level sensor)
Next, the lower heating means (52) is fitted into the recess (44) on the bottom surface of the inner pot (4) to heat the inner pot (4). At this time, the upper heating means (51) also generates heat and heats the inner pot (4).
Next, after a certain period of time, the rice is cooked and the rice cooking process is completed.
After this, the fully automatic rice cooker (R) is switched to the heat retention mode.

Then, after use, when the user presses a cleaning button on the operation panel (not shown), a small amount of cleaning water is first supplied from the inner pot cleaning means (9) under the control of the central processing section (A). Thereafter, the upper heating means (51) and the lower heating means (52) generate heat, and the inside pot (4) is steamed.
Next, the cleaning water is again sprayed from the inner hook cleaning means (9), and the inner hook rotating means (6) reciprocally rotates the inner hook (4) in response to this, so that the inner pot (4) Wash.
Thereafter, the inner hook rotating means (6) positions the inner hook (4) to the second section, temporarily stores the rice remaining in the inner hook (4) in the remaining rice receiving portion (1d), Then, a liquid such as washing water is discharged from the discharge port (1c) through the remaining rice receiving part (1d).
This cleaning process is repeated a plurality of times (for example, about 2 or 3 times), and after the drying process by heating the upper, side and lower parts is completed, a plurality of times (2) while rotating water or hot water from the inner pot cleaning means (9). It is preferable to control the injection so that it is injected about three times. This is because once the residue is dried, the residue is easily peeled off, and the residue in the inner pot can be discharged more completely. The liquid to be jetted is more preferably water. This is because when hot water is used, the residue may become viscous again.
While cleaning the inner hook (4), use the upper heater and, if equipped, the side heater, and when the inner hook (4) stops reciprocating, use the lower heating means to By maintaining the state, it is possible to improve the cleaning power and shorten the time required for the cleaning process.
Thereafter, the upper heating means (51) and the lower heating means (52), if provided, the side heating means generate heat again, and the inside of the inner pot (4) is dried.
Thus, the entire process is completed.

In the above-described rice washing step, the amount of water supplied is about 15 to 40% of the capacity of the inner pot (4) so that the water supplied from the liquid supply means (8) does not overflow from the inner pot (4). It is preferable to control so that the polishing water is discharged in a plurality of times. This control may be performed by providing a known water level sensor or weight sensor in the inner hook (4).
Moreover, it is more preferable that the rice washing process is controlled so as to be repeated a plurality of times until the polishing water has a certain transparency. In addition, what is necessary is just to use a well-known transparency sensor for judgment of transparency.
In the above-described example, the cleaning process is such that a predetermined amount of detergent is injected into the water from the cleaning tank (91). However, as another configuration, water is injected into the cleaning tank (91) and the cleaning tank (91 ) A fixed amount of washing water is generated in the inner pot (4) to wash, and the washing water discharged from the remaining rice receiving part (1d) is returned to the inner pot washing means (6) using a pump not shown. It is also possible to adopt a washing water circulation type configuration in which the water is fed. Thereby, since it becomes possible to circulate washing water in the rice cooker main body while aiming at water saving, efficient washing | cleaning can be performed.
In the case of this circulation type configuration, the capacity of the liquid heater (92) is preferably about 15 to 30% of the volume of the inner pot (4) in order to maintain the cleaning efficiency.

In addition, although the case where the button of the operation panel was comprised with two of rice cooking and washing | cleaning was demonstrated in the said usage example, this can also be comprised with three buttons of rice washing, rice cooking, and washing | cleaning.
Thereby, at the stage where the rice washing process is finished, it is also possible to open the lid (2) and add the ingredients and soup stock to make cooked rice and the like.

  The present invention can be suitably used as a rice cooker used in general households.

It is a general | schematic fragmentary sectional view which shows an example of the fully automatic rice cooker which concerns on this invention. FIG. 2 is a partial enlarged cross-sectional view in the vicinity of the lower part of the opening in FIG. 1. It is a block diagram which shows the control form of the fully automatic rice cooker which concerns on this invention. It is the schematic which shows the outer pot with which the fully automatic rice cooker which concerns on this invention is equipped, (a) is the top view, (b) is the AA sectional view. It is the schematic which shows the inner pot with which the fully automatic rice cooker which concerns on this invention is equipped, (a) is the top view, (b) is the AA sectional view. (A) with which another form of the fully automatic rice cooker concerning this invention is equipped is an outer pot, (b) is a top view of an inner pot. It is the schematic which shows the upper part heating means in the cover body with which the fully automatic rice cooker which concerns on this invention is equipped, (a) is a front view, (b) is a bottom view. It is the schematic which shows the lower heating means in the inner pot with which the fully automatic rice cooker which concerns on this invention is equipped, (a) is front sectional drawing, (b) is a bottom view. It is a schematic sectional drawing which shows the internal structure of the cover body with which the fully automatic rice cooker which concerns on this invention is equipped. It is the schematic which shows the rotation member provided in the cover body bottom provided with the fully automatic rice cooker which concerns on this invention, (a) is a front view, (b) is a bottom view. It is the schematic which shows the rotation member provided in the cover body bottom provided with the fully automatic rice cooker which concerns on other embodiment of this invention. BRIEF DESCRIPTION OF THE DRAWINGS It is the schematic which shows the position of the waterproof wall provided in the fully automatic rice cooker which concerns on this invention, the watering brush, and a brush accommodating part, (a) is an outer pot top view, (b) is an inner pot bottom view. is there. FIG. 2 is a partially enlarged view of FIG. 1.

Explanation of symbols

R Fully automatic rice cooker 1 Rice cooker body 1a Opening 1b Space 2 Lid 3 Outer hook 32 First outer pot discharge hole 33 Second outer pot discharge hole 3a Annular convex part 4 Inner pot 41 First inner pot discharge hole 42 Second inner pot discharge hole 4a Annular recess 51 Upper heating means 52 Lower heating means 6 Inner pot rotation means 7 Rotation control means 8 Liquid supply means 9 Inner pot cleaning means 94a Main rotation member 94b Sub-rotation member 10 Discharge means 12 Waterproof wall

FIG. 2 is a partially enlarged cross-sectional view of the vicinity of the lower portion of the opening in FIG. The rice cooker main body (1) is in close contact with the side surface of the outer hook (3) and in the vicinity of the outer pot opening so as to form a concave portion in an annular shape in order to prevent foreign matter from entering the space (1b). The concave portion formed in an annular shape is used as a drainage groove (13). By providing the drainage groove (13), the outer edge of the opening of the inner hook (4) can be cleaned in the inner pot cleaning step described later. The intimate part of the rice cooker body (1) is more preferably provided with a slight inclination in the direction of the lid in order to form the drainage groove (13), but it may be in intimate contact with the horizontal. The surface from the surface of the rice cooker body (1) in contact with the lid (2) to the front of the surface in contact with the outer pot is made of stainless steel, and the close contact portion is provided with packing or silicone rubber for waterproofing.
At least one drain hole (14) is provided, and when two or more drain holes (14) are provided, the drain hole (14) is preferably provided at a position facing the opening center of the rice cooker body (1). The drain groove (13) is preferably provided with a gentle slope so that the drain hole (14) is at the lowest position. Therefore, when there is only one drain hole (14), the slope is provided so that the position of the drain groove facing the drain hole (14) across the center of the opening of the rice cooker body (1) is the highest. Is preferred. The size of the drain hole (14) is not particularly limited, but is preferably about 2.5 to 3.5 cm in the circumferential direction and about 1.5 to 2.5 cm in the radial direction. The drain hole (14) is formed of packing or silicone rubber to prevent water leakage, and is connected to the left food receiving part (1d) via the drain pipe (15), so that a part of the washing water and / or the food to be cooked is discharged. It is discharged to the outside through the outlet (1c).

As described above, when the inner hook (4) is rotated, the section where the first outer hook discharge hole (32) and the first inner hook discharge hole (41) are matched (hereinafter referred to as the first section), the second A section where the outer pot discharge hole (33) and the second inner pot discharge hole (42) are matched (hereinafter referred to as the second section) is formed independently.
At this time, when one section is formed in each section, for example, the first outer pot discharge hole (32) and the first inner pot discharge hole (41) are aligned so that the other section is not formed. When the first inner hook discharge hole (33) and the second inner hook discharge hole (42) do not coincide with each other, the first inner hook discharge hole (41) and the second inner hook discharge hole ( 42) is set. (For example, about 15 to 25 degrees)
Thereby, the discharge means (10) is configured.
Here, when forming the first compartment and the second compartment, the rotation of the inner hook (4) is controlled by the central processing unit (A) so that the first compartment is always formed first. Constitute. (Counterclockwise direction in FIG. 5)
In FIG. 1, for convenience of explanation, the first section and the second section are formed and described.

Accordingly, the first compartment and the second compartment is not formed at the same time, in a state in which the inner hook (4) accommodated in the outer hook (3) in the second inner pot discharge hole (42), the second outer holder emissions If the hole (33) and the bottom can be formed to have substantially the same height, the first inner hook discharge hole (41), the second inner hook discharge hole (42), the first outer hook discharge hole (32) , The position of the second outer hook discharge hole (33) is not particularly limited.
For example, as shown in FIG. 6A, the position of the second outer hook discharge hole (33) is located outside the first outer hook discharge hole (32) and at the bottom of the second inner hook discharge hole (42). As shown in FIG. 6 (b), the position is on the straight line whose phase is changed by a predetermined angle from the straight line connecting each first inner hook discharge hole (41) to the position outside the first inner hook discharge hole and the bottom. Can be formed.
4, 5, and 6, the reverse configuration, the first outer hook discharge hole (32), the first inner hook discharge hole (41) outward, and the second outer hook discharge hole (33). The second inner pot discharge hole (42) may be formed inside.

Further, as shown in FIG. 2, the open end of the inner hook (4) is curved in a substantially cross-sectional shape toward the outside in the radial direction, and the open end of the outer hook (3) is also directed outward in the radial direction. It is preferable that the inner hook and the outer hook bend around each other so as to be bent in a J shape. Role of preventing foreign matter from entering the clearance between the outer hook (3) and the inner hook (4) and preventing the water vapor dissolved in the cleaning agent and the residue from entering the clearance in the inner pot cleaning process described later. Because it fulfills. The portion formed so that the inner hook and the outer hook are wound together is formed with a slight gap in consideration of friction due to rotation, and the curved portion end portion avoids friction due to rotation. Because of this, it is rounded. In the vicinity of the opening portions of the outer hook (3) and the inner hook (4), it is preferable that the respective opening portions are widened to be inclined, but there is no problem even if they are formed vertically.
In FIGS. 1 and 2, the open ends of the inner hook (4) and the outer hook (3) are shown in a preferred embodiment. However, FIGS. 4 and 5 and FIGS. FIG. 5 shows another embodiment of the open ends of the inner hook (4) and the outer hook (3).

The second section is used when discharging washing water and residues such as rice adhering to the inner surface of the inner pot (4) in the washing process. At this time, since the second inner pot discharge hole (42) and the second outer pot discharge hole (33) are formed with a hole diameter of about 15 to 25 mm, not only the washing water in the inner pot (4) but also rice Residues such as can be discharged without problems.
The second inner hook discharge hole (42) has a lowermost portion substantially at the same position as the lowermost inner surface of the inner bottom of the inner hook (4) (the position where the first inner hook discharge hole (41) is formed). It is preferable to configure. The second outer hook discharge hole (33), the bottom of the outer pot (3) inner surface, a bottom substantially the same position of the second inner hook discharge hole as described above (42), the outer holder (3) It is preferable to configure to incline downward toward the outer surface. Thereby, the contents in the inner hook (4) can be reliably discharged.
As described above, the contents discharged from the second section are accommodated in the remaining rice receiving portion (1d). This remaining rice receiving part (1d) is detachably provided on the rice cooker body (1), and is connected to the discharge port (1c) through a mesh hole (not shown), such as washing water. A liquid part is discharged | emitted from a discharge port (1c) through a left rice receiving part (1d), and residues, such as rice, are accommodated in a left rice receiving part (1d). As a result, it is possible to reduce time and effort in the so-called garbage disposal.
In addition, the capacity | capacitance of the remaining rice receiving part (1d) is comprised so that at least about 1 rice can be accommodated so that residues, such as rice, may not overflow from the remaining rice receiving part (1d).

In the region where the discharge holes (32, 33, 41, 42) of the outer pot (3) and the inner pot (4) are formed, the contents are transferred to the outer pot when the inner pot (4) is rotated or cooked during washing and washing. It is preferable to eliminate the clearance between the inner hook (4) and the inner hook (4) so as not to flow between them. However, considering the friction between the hooks when the inner hook (4) rotates, a certain amount (for example, , 0.2, or 0.3 to several mm).
Here, the above-mentioned lifting / lowering movement of the inner pot rotating means (6) is used so that the clearance can be adjusted. A clearance is formed when the inner pot (4) is rotated, and an inner pot ( 4) that the outer hook (3) and so as to abut the.
Further, as a compensation for the clearance, a waterproof wall (12) is provided between the inner surface of the bottom of the outer hook (3) and the outer surface of the bottom of the inner hook (4).
The waterproof wall (12) is configured such that a metal wall (for example, stainless steel) having excellent corrosion resistance is covered with an elastic body such as packing, and the first outer pot / inner pot discharge holes (32, 41) and the first Two outer hook / inner hook discharge holes (33, 42) surrounding the periphery of the first waterproof wall (12a) and the outer hole (3) through hole (31) has the same outer diameter and penetrates It is comprised from the cyclic | annular 2nd waterproofing wall (12b) closely_contact | adhered with respect to a hole (31).

Further, the inner and outer peripheral positions of the inner hook discharge holes (41, 42) are formed between the first inner hook discharge hole (41) and the second inner hook discharge hole (42). The outer peripheral position and the inner peripheral position than the region where the annular recess (4a) formed in the inner surface direction of the inner hook (4) formed on the outer surface side of the hook (4) and the outer hook discharge holes (32, 33) are formed. And an annular protrusion (3a) projecting in the direction of the inner hook (4) formed on the inner surface side of the outer hook (3) between the first outer hook discharge hole (32) and the second outer hook discharge hole (33). ) And the annular concave portion (4a) and the annular convex portion (3a) are fitted.
Thereby, it becomes possible to prevent the water leak etc. into the rice cooker main body (1) more reliably. Further, when the inner hook (4) is rotated, the trajectory control of the inner hook (4) can be performed without difficulty, and in addition, the vibration of the inner hook (4) can be reduced.
In addition, since it is desirable that the second outer hook / inner hook discharge hole (33, 42) maintain close contact during the up-and-down movement of the inner hook (4), this is the case in the outer hook (3) and the inner hook (4). The positions to be formed are configured to be parallel to each other. At this time, a slight amount of gap (C) is formed in the fitting portion between the annular recess (4a) and the annular projection (3a) formed at the outer peripheral positions of the outer hook (3) and the inner hook (4). Needless to say.

Claims (10)

A rice cooker body having an opening on the upper surface and a space communicating with the opening;
A lid that is disposed at the top of the rice cooker body and that can open and close the opening;
An outer pot accommodated and fixed in the space through the opening;
A substantially bottomed cylindrical inner pot that is supported in the outer pot and accommodates food such as rice;
A fully automatic rice cooker comprising heating means for heating the inner pot,
An inner hook rotating means connected to substantially the center of the inner hook bottom and rotating the inner hook;
Rotation control means for controlling the inner hook rotation means;
Liquid supply means for supplying a liquid such as water into the inner pot;
An inner pot cleaning means for cleaning the inner pot;
A discharge means for discharging the liquid supplied by the liquid supply means and the inner pot cleaning means and / or a part of the cooking object from the inner pot;
The discharge means includes an inner hook discharge hole formed at a bottom bottom inner surface of the inner hook and near the bottom outer periphery, a bottom bottom inner surface of the outer hook and a bottom outer periphery, and on a rotation track of the inner hook discharge hole. Having an outer pot discharge hole formed in
At least two inner hook discharge holes are formed so that the inner hook discharge holes face each other across the center of the bottom of the inner hook, and the first inner hook discharge hole and the bottom have the same height. It is composed of a second inner hook discharge hole arranged at a position,
The outer pot discharge hole is disposed on the rotation path of the first inner pot discharge hole, and the first outer pot discharge hole is at the same height at the bottom of the first outer pot discharge hole, and A second outer hook discharge hole disposed on the rotation path of the second inner hook discharge hole,
The rotation control means matches the first inner pot discharge hole and the first outer pot discharge hole to drain the liquid when the rice washing process is completed, and when the inner pot cleaning is completed, The second inner pot discharge hole and the second outer pot discharge hole are made to coincide with each other in order to discharge the liquid and a part of the cooking object, and the inner pot discharge hole and the A fully automatic rice cooker that controls the inner pot rotating means so as not to match the outer pot discharge hole.   The fully automatic rice cooker according to claim 1, wherein the rotation control means controls the inner pot rotating means so as to reciprocate the inner pot. A rod-like main rotating member that is rotatably disposed at a substantially center of the lid body,
3. A fully automatic type according to claim 1, further comprising: a rod-like sub-rotating member that is rotatably disposed on the main rotating member and includes a plurality of liquid ejection ports communicating with the liquid supply means. rice cooker.   The heating means is disposed on the upper heating means disposed on the surface of the lid on the opening side of the rice cooker main body, and on the outer surface of the outer pot bottom that is in contact with the inner pot on the inner surface of the outer pot bottom. Lower heating means and / or lower heating means disposed on the outer surface of the inner hook bottom and driven in the axial direction of the inner hook to make contact with and separate from the inner hook bottom. The fully automatic rice cooker in any one of Claims 1 thru | or 3.   The outer surface of the inner hook bottom portion covers the periphery of the first and second inner hook discharge holes and the first and second outer hook discharge holes and seals between the outer surface of the inner hook bottom portion and the inner surface of the outer pot bottom portion. A fully automatic rice cooker according to any one of claims 1 to 4, further comprising a waterproof wall.   The vertical cross-sectional shape of at least the bottom portion of the inner hook of the outer hook and the inner hook is a substantially semicircular shape that rises gently from the inner hook discharge hole toward the inner hook shaft center. The fully automatic rice cooker according to any one of claims 1 to 5. An annular recess recessed toward the inner surface of the inner hook formed on the outer surface side of the inner hook at an outer peripheral position and an inner peripheral position from an area where the first and second inner hook discharge holes are formed;
An annular convex portion that is formed on the inner surface side of the outer hook at the outer peripheral position and the inner peripheral position than the area where the first and second outer hook discharge holes are formed is formed,
The fully automatic rice cooker according to any one of claims 1 to 6, wherein the annular concave portion and the annular convex portion are fitted. The opening end of the outer hook is curved outward in a J-shaped cross section, and the opening end of the inner hook is curved outward in the shape of a substantially cross-sectional shape so that the peripheral edges of the inner hook and the outer hook are opened. The fully automatic rice cooker according to any one of claims 1 to 7, wherein the portions are formed so as to be wound together.   A drainage groove is formed when the rice cooker body is in close contact with the side surface of the outer pot and in the vicinity of the outer pot opening so as to form a recess, and the drainage groove is provided with a drainage hole. The fully automatic rice cooker in any one of Claims 1 thru | or 8.   After the washing process of the inner pot by the inner pot cleaning means and the drying process of the inner pot by the heating means, the inner pot cleaning means further rotates the inner hook while the inner pot cleaning means supplies a plurality of water. 10. A fully automatic rice cooker according to any one of claims 1 to 9, wherein the inner pot is dried again by heating means and then dried again by heating means.

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