JPH0798018B2 - Rice cooker - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a rice cooking method and device for automatically sharpening and cooking rice. More specifically, the present invention relates to a dry-type rice polishing section and a rice polishing section. The present invention relates to a rice-cooking method and a device for cooking rice by adding the amount of rice suitable for the standard amount of water to the rice cooker based on the water put in the rice-cooker.

[Prior Art] As a conventional rice cooker relating to this type of rice polishing method, for example, there is an apparatus described in Japanese Patent Laid-Open No. 63-222716. The configuration of the rice cooker described in this publication is shown in FIG.

In FIG. 3, (1) is the main body, (2) is the rice storage section,
(3) is a dry-type rice polishing device provided below it, and (4) is a rice weighing device for rice that has been polished by the rice polishing device (3). On the right side, (5) is a water storage tank, and (6) is a water supply device. Further, (7) is a rice cooker, (8) is a bran container, (9) is a lid of the rice cooker (7), and (10) is a lid opening / closing device. (11) is a rice supply port under the rice weighing device (4), (12) is a water supply port of the water supply device (6), (13) is a cradle on which the rice cooker (7) is placed, and (14) is polished rice. It is a drive device.

In the device having such a structure, when the rice cooker (7) is placed on the pedestal (13), the lid (9) is opened by the lid opening / closing device (10). After opening the lid (9), the cradle (13)
Moves below the rice supply port (11) and the water supply port (12) as indicated by the chain double-dashed line. When the movement of the cradle (13) is confirmed, the rice in the rice storage section (2) is sent to the rice polishing device (3). Then, the rice in the rice polishing device (3) is agitated by the rice polishing drive device (14) to remove the bran and dust adhering to the surface. The removed bran and dust are stored in the bran container (8) below.

On the other hand, the rice polished by the rice polishing device (3) is sent to the rice weighing device (4), weighed by a predetermined unit amount, and put into the rice cooker (7). In addition, from the water storage tank (5),
Water corresponding to the measured amount of rice is supplied to the rice cooker (7) through the water supply device (6). When the supply of rice and water to the rice cooker (7) is completed, the cradle (13) moves and the rice cooker (7) is returned to the bottom of the lid opening / closing device (10). When the rice cooker (7) is returned to the fixed position, the lid opening / closing device (10) closes the lid (9) to start rice cooking.

[Problems to be Solved by the Invention] In the conventional rice cooker described above, the water in the water storage tank (5) is
The water supply device (6) supplies water to the rice cooker (7) to cook rice. Therefore, not only the plumbing work for cooking rice without water leakage is required, but also the water storage tank (5) for accumulating at least one serving of cooking water is required.
The whole structure of the rice cooker becomes complicated and large. In addition, the stored water in the water storage tank (5) has a problem in that hygiene measures such as the prevention of mold and bacteria must be taken into consideration.

The present invention has been made in order to solve the problems of the conventional device as described above, and provides a rice cooker capable of polishing rice without using a water storage tank, a water supply device, or the like, and further reducing the size of the entire device. With the goal.

[Means for Solving the Problems] A rice cooker according to the present invention includes a rice cooker having a rice cooker and a rice cooker for heating the rice cooker, and a weight measuring means provided in contact with a lower portion of the rice cooker. Calculating means for calculating the amount of water in the rice cooker based on the measurement value of the weight measuring means, and calculating an appropriate amount of rice corresponding to the amount of water, and driving the motor when the appropriate amount of rice is input Then, the appropriate amount of rice and the amount of rice obtained based on the measurement value of the weight measuring means are compared, and when the amount of rice reaches the appropriate amount of rice, the driving of the motor is stopped and the Control means for turning on power to the rice-cooking heater of the rice-cooking unit, and an inner cylinder and an outer cylinder are loosely fitted relative to each other in a case laterally installed in the rice-cooking unit so as to be vertically arranged, and these inner cylinders are arranged. And the outer cylinder has an annular rice polishing chamber where the gap spacing changes. Is provided with a slit, and when the motor is driven by the control means, the inner cylinder and the outer cylinder rotate relative to each other to introduce the rice in the rice storage chamber formed by the case and the outer cylinder into the polishing chamber. And, the rice is guided upward through the slit of the rice polishing room and polished, and the rice is put into the rice cooker from the upper part of the case, and when the motor is stopped, the rice polishing and the rice polishing section are stopped. It is equipped with.

[Operation] In the rice cooker of the present invention, when about the amount of water required for rice cooking is set in the rice cooker, the weight measuring means measures the weight of the rice cooker including the amount of water, and the computing means measures the weight. The amount of water in the rice cooker is calculated based on the value, and an appropriate amount of rice corresponding to the amount of water is calculated and sent to the control means.
When the proper amount of rice is input, the control means drives the motor to relatively rotate the inner cylinder and the outer cylinder of the rice polishing section. By the relative rotation of the rice polishing unit, the rice in the rice storage chamber is introduced into the rice polishing chamber and guided to the upper side of the rice polishing chamber, and the rice is polished by the slit and placed in the rice cooker from the upper part of the case. On the other hand, the control means
The amount of rice obtained based on the measurement value of the weight measuring means is compared with the appropriate amount of rice by the calculating means, and when the amount of rice put into the rice cooker reaches the appropriate amount of rice, the motor is driven. Stop and turn on the rice cooking heater in the rice cooking section. At this time, the rice-polishing unit stops polishing the rice and putting it into the rice cooker.

[Embodiment of the Invention] FIG. 1 is an explanatory diagram of a configuration of an apparatus according to an embodiment of the present invention.

In FIG. 1, (3) is a rice polishing section provided inside the main body (1). Reference numeral (30) is a cylindrical case of the rice polishing section (3), which is composed of an upper case (31), an intermediate case (32) and a lower case (33). (34) is the lower case (3
Lower bearing fixed to 3), (35) inclined ring, (36)
Is a regulation plate composed of a plurality of spring plates. The regulation plate (36) has an inclination corresponding to the inclined surface of the upper portion of the inclination ring (35), one end of which is fixed in the intermediate case (32) and the free end of which extends inward.

(41) is an outer cylinder having a polygonal inner side supported by the lower bearing (34), and (42) is a cylindrical inner cylinder coaxially arranged inside the outer cylinder (41). Reference numeral (43) denotes a plurality of intakes provided in the lower portion of the outer cylinder (41), and the outer opening surface faces and contacts the free end of the regulation plate (36). In addition, a large number of slanted slits (44) penetrating the inside and outside are provided in the tube portion of the inner tube (42).
And a mesh (45) is provided. The groove width of the slit (44) is smaller than the thickness of the rice grain, and the opening edge is chamfered without chamfering the width such that the rice grain does not pass through the slit (44). The sharp-edged opening edge functions to remove the bran on the surface of the rice grain. Also,
The mesh (45) is a mesh of round fine wires for polishing the rice that comes into contact with it. The inner cylinder (42) is made longer than the outer cylinder (41), the upper end is fixed to the upper case (31), and the outer cylinder (41)
It hangs down at the center of the shaft and extends midway through the portion held by the lower bearing (34). (46) is a driven pulley fixed to the lower end of the outer cylinder (41), and (8) is a tray. The driven pulley (46) is connected to a driving motor (not shown) via a belt.

(47) is an upper bearing that supports the upper part of the outer cylinder (41),
8) is a supply port, and (11) is an input port. (16) is rice, (1
7) is water, and (18) is a rice bran mainly composed of rice bran that contains dust mixed in rice. Thus, the annular space formed between the case (30) and the outer cylinder (41) constitutes a storage chamber (R1) for storing the rice before polishing, and the outer cylinder (41) and the inner cylinder (42). The ring-shaped gap between the rice and () forms a rice polishing chamber (R2), and the inner space of the inner cylinder (42) forms a separation chamber (R3) for separating the bran (18) from the rice (16).

(7) is a rice cooker, and (70) is a rice cooker. Rice cooker (7
On the inner surface of (0), a scale (71) and a numerical value (72) indicating the amount of water (17) corresponding to the amount of rice (16) to be cooked as shown.
Is engraved. (9) is a lid, and (10) is an opening of the lid (9). The opening (10) is normally closed, but is opened when the rice polishing part (3) is driven. (73)
Is a weight measuring instrument, (74) is a sheath type rice cooker, (75)
Is a temperature detector that contacts the bottom of the rice cooker (70) and detects its temperature. (80) is the control unit, (81) is the display window,
(82) is an operation switch. A rice cooker (70) is placed on the weight measuring device (73), and rice (16) and water (17) inside
It is for measuring the weight of. In addition, the control unit (8
0) has a memory / calculation function, stores the measurement value measured by the weight measuring device (73), and calculates an appropriate amount of rice, which will be described later, based on the measurement value. Although not shown in the figure, a seal is provided between the rice polishing section (3) and the rice cooking section (7), so that the effect of heat and steam associated with the rice cooking in the rice cooking section (7) may affect the rice polishing section (3). ) Is configured to not join.

The rice cooking operation of the device of the present invention having such a configuration will be described below with reference to FIG.

Pre-grinding rice (1) from the supply port (48) of the rice polishing section (3)
6) is supplied and accumulated in the storage room (R1) from the bottom inclined surface and stored. Then, for example, looking at the scale (71) and the numerical value (72) of the rice cooker (70) taken out from the main body (1), twist the tap of the tap to cook approximately the amount of water corresponding to the amount of rice ( Pour 17) inside and then set it in the rice cooker (7) (step 1 ... omitted below).
When the rice cooker (70) is set, the weight measuring device (73) operates to measure the total weight Wx, and the measured value is sent to the control unit (80). The control unit (80) subtracts the tare WO from the total weight Wx to calculate the water weight Ww = Wx−WO. In addition, based on this calculation result, the standard appropriate amount of rice Ws corresponding to the weight Ww of water is calculated by the following formula: Ws = N × Ww (1) (where N is a constant) To be done.

Here, the electric motor of the polishing unit (3) is driven, and the outer cylinder (41) supported by the lower and upper bearings (34) and (47) starts to rotate via the driven pulley (46). When the outer cylinder (41) rotates and the intake port (43) faces the regulation plate (36), spring pressure is applied to the rice (16) near the intake port (43).
As a result, the rice (16) is forcibly pushed into the rice polishing room (R2) from the intake (43) and pushed upward. The pushed up rice (16) moves in an irregular direction and is stirred while being stirred by the change in the gap between the rotating hexagonal outer cylinder (41) and the fixed circular inner cylinder (42). Rise in the rice room (R2). The rising rice (16) contacts the inner cylinder (42) and partly fits into the slit (44) to form the slit (4
The bran is scraped off at the sharp edge of 4). The bran layer is also peeled from the surface when the rice (16) in the polishing room (R2) rubs each other. Then, the rice bran (1
8) passes through the slit (44), drops in the separation chamber (R3), and is stored in the tray (8). The rice (16) from which the bran has been scraped off is further pushed up to the upper part of the rice polishing room (R2) while being further polished by the mesh (45) of the outer cylinder (41), and the rice cooking part (7) is fed from the upper inlet (11). ) Rice cookers (70) are added one after another.

On the other hand, the weight measuring device (73) is charging rice (16) during this period.
The total weight Wx of the rice cooker (70) including the water (17) and the water (17) is detected and output to the controller (80). The control unit (80) uses rice (1
6) Input amount Wr = Wx− (WO + Ww) is calculated, and this value Wr
And an appropriate amount of rice Ws. Wr-Ws = 0, that is, rice (1
When the input amount Wr of 6) reaches an appropriate amount Ws of rice, the rice polishing unit (3) stops driving and then the opening (10) is closed. Then, the rice cooking heater (74) is energized and the rice cooking pot (70)
Is heated and rice cooking is started. Then, the heating of the rice cooker (70) is controlled to a predetermined temperature by the control unit (80) based on the temperature detected by the temperature detector (75), and the rice (1
6) will be cooked.

In addition, in the above-mentioned embodiment, the scale (71) and the numerical value (72) engraved on the side surface of the rice cooker (70) are used as a guide to illustrate the case where water is put in the rice cooker (70). However, by installing an attachment measuring cup that can measure the approximate amount of water corresponding to the amount of rice to be cooked, a rice cooker (7
You may put it in 0). It is also possible to select the constant N in the equation (1) and cook hard or soft rice or "porridge" or the like.

[Effects of the Invention] As described above, according to the present invention, rice is polished in an annular rice-polishing chamber formed by an inner cylinder and an outer cylinder, and then placed in a rice cooker in a horizontal rice cooking section. As a result, there is no need for a tank for storing water for cooking rice, construction of water supply / drainage systems and associated equipment, and no hygiene measures such as measures to prevent mold and spoilage associated with water use. Therefore, the whole device can be made small and compact, and the rice polishing part and the rice cooking part are arranged side by side, so that it is easy to use.

[Brief description of drawings]

FIG. 1 is a structural explanatory view of an embodiment of the present invention, FIG. 2 is a flow chart for explaining the operation of the exemplary embodiment of the present invention, and FIG. 3 is a structural explanatory view of a rice cooker according to a conventional method. In the figure, (1) is the main body, (2) is the rice storage unit, (3) is the rice polishing unit (rice polishing device), (4) is the rice weighing device, (5) is a water storage tank, and (6) is water supply. Device, (7) rice cooker (rice cooker), (8) tray (bran container), (9) lid, (10)
Is an opening (lid opening / closing device), (11) is an input port (rice supply port), (12) is a water supply port, (13) is a pedestal, (14) is a rice polishing drive device, (16) is rice, (17) is water, (18) is bran,
(30) is case, (31) is upper case, (32) is middle case, (33) is lower case, (34) is lower bearing, (35)
Is an inclined ring, (36) is a regulation plate, (41) is an outer cylinder, (42)
Is an inner cylinder, (43) is an inlet, (44) is a slit, (45) is a mesh, (46) is a driven pulley, (47) is an upper bearing,
(48) is a supply port, (70) is a rice cooker, (71) is a scale, (7
2) is a numerical value, (73) is a weight measuring device, (74) is a rice cooking heater, (75) is a temperature detector, (80) is a control unit, (81) is a display window, (82) is an operation switch, ( R1) is a storage room, (R2)
Is a rice polishing room, and (R3) is a separation room. The same reference numerals in the drawings indicate the same or corresponding parts.

Claims (1)

[Claims] 1. A rice cooker having a rice cooker and a rice cooker for heating the rice cooker, weight measuring means provided in contact with a lower portion of the rice cooker, and rice cooked based on a measured value of the weight measuring means. A calculating means for calculating the amount of water in the kettle and an appropriate amount of rice corresponding to the amount of water, and a motor for driving the appropriate amount of rice when the appropriate amount of rice is input, and the weight measuring means. Control means for comparing the amount of rice obtained on the basis of the measured value of the above, and when the amount of rice reaches the appropriate amount of rice, stop the driving of the motor and turn on the power to the rice cooking heater of the rice cooking section. And an inner cylinder and an outer cylinder are rotatably fitted relative to each other in a case laterally provided in the rice cooking section and arranged in the vertical direction, and an annular shape in which the gap between the inner cylinder and the outer cylinder changes. It has a rice polishing room, and a slit is provided in this rice polishing room. When the motor is driven, the inner and outer cylinders rotate relative to each other to introduce the rice in the rice storage chamber, which is formed by the case and the outer cylinder, into the rice polishing chamber and to the slit of the rice polishing chamber. The rice is guided upwards and polished, and the rice is put into the rice cooker from the upper part of the case, and when the motor stops, the rice polishing unit is provided to stop the rice polishing and the rice input. apparatus.