JP4200620B2 - Washed rice cooker - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a rice-washing rice cooker that automatically measures and cleans rice stored in a rice storage unit and then cooks rice.
[0002]
[Prior art]
At the bottom of the washing tank, a jacket that can wash and drain the washed rice and water for cooking rice is provided, and in addition, a jacket that can discharge the sewage generated during washing from the drain port provided on the side wall is provided. Yes. In order to adjust the water, a small-diameter drainage outlet is provided alongside the drainage outlet on the side wall of the jacket.
[0003]
[Problems to be solved by the invention]
However, in the case where a plurality of drain outlets are provided, it is necessary to provide a plurality of drain opening / closing valves in order to correspond to the respective drain outlets, which complicates the configuration and increases the cost.
[0004]
[Means for Solving the Problems]
This invention provides the rice washing rice cooker which solves such a subject, and took the following technical means. That is, in Claim 1, the washing | cleaning part (B) which provided the jacket (1) which can guide rice toward the rice storage part (A) and the downward direction, and the rice cooking part (C) which provided the rice cooker (2 ) Are arranged in that order from the upper side, and the drainage which opens and closes the drainage port (4) provided on the side wall (3) while being able to guide rice and water for rice cooking from the jacket (1) to the lower rice cooker (2). A mouth opening / closing valve (5) is provided, the drain opening / closing valve (5) is a three-way valve having three passages, and the drain opening / closing valve (5) drains a large amount of waste water from the drain port (4). It is configured so that it can be switched to drainage or drainage blocking, draining from two passages (55, 56) when draining a large amount of water, draining from one passage when draining a small amount, characterized in that a flow sensor (6) to the passage (55) passing through It was the US rice cooking system.
[ 0005 ]
[0006]
[Action]
Explaining rice cooking work, pull out the rice cooker to the set position, place the rice cooker 2, and then push the rice cooker into the original position, then operate the work condition setting means, the desired rice cooking amount, water adjustment When the working conditions such as how to wash are set, the working conditions are taken into the control means.
[0007]
Then, when the start switch is turned on and the rice cooking operation is started, the rice stored in the rice storage unit A is supplied to the cleaning tank of the cleaning unit B and is cleaned by a cleaning unit such as a stirring unit or a water supply unit. . The sewage generated at the time of washing is drained from the drain port 4 which is in a large drainage state by the drain port opening / closing valve 5.
[0008]
When the cleaning operation is completed, the drain port opening / closing valve 5 puts the drain port 4 into a drain blocking state, so that the supplied water is stored in the cleaning tank. Thereafter, when a predetermined amount of water accumulates in the washing tank, the drain opening / closing valve 5 puts the drain opening 4 into a small amount of drainage, and is drained from the washing tank through the jacket 1 and the drain opening 4.
[0009]
Then, when a predetermined amount of water for cooking rice is reached after a predetermined time, the drain opening / closing valve 5 puts the drain opening 4 in a drainage blocking state. After the washing, the rice is discharged through the washing tank and the jacket 1 and is stored in the lower rice cooker 2 together with the rice cooking water and cooked. In this way, by the operation of one drain opening / closing valve 5, drainage of sewage generated at the time of cleaning, drainage at the time of water adjustment, and storage of water for cooking rice can be performed.
[0010]
Discharge of sewage, drainage at the time of water adjustment, and storage of rice cooking water can be performed through the three passages of the drain opening / closing valve 5, so that the operation by switching the valves can be performed. Furthermore, since the flow rate sensor 6 provided in one place of the passage detects the amount of drainage at the time of water adjustment, the accuracy of water adjustment can be improved.
[0011]
【effect】
The drain opening / closing valve (5) is a three-way valve with three passages, and the drain opening / closing valve (5) can switch the waste water from the drain opening (4) to a large drainage, small drainage or drainage blocking state. It is configured to drain from two passages (55, 56) when draining a large amount of water, and drains from one passage when draining a small amount, draining sewage generated during washing , draining water when cooking water, and cooking rice The drainage configuration for storing water for use can be simple and inexpensive. And since it can be operated by switching the valve, it can be configured easily. Furthermore, the accuracy of water adjustment can be improved by providing the flow sensor (6) in the passage (55) through which the drainage passes when draining a small amount of water.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. First, the structure will be described. The rice-washing rice cooker 7 arranges the rice storage part A, the washing part B, and the rice cooking part C in the frame F in that order from the upper side, and puts the rice cooker 2 of the rice cooking part C on it. A table 8 is provided so as to be movable in the front-rear direction.
[0013]
This rice storage part A is provided with a lower end provided detachably on the top surface of the top plate having a communication port, and provided on the front wall part so that it can be opened and closed in the front-rear direction (closed position during operation) to form a door. A case 9, a funnel 10, motors 11, 12, and 13, a water supply pipe 15, and the like provided in the case 9 are provided.
[0014]
Cylindrical rice feed which has a receiving hole 17 in a part of its outer surface and is rotatably provided by rotational power from the motor 11 in a communication passage communicating with a cleaning tank 16 to be described later through a communication port. A body 18 is provided. A power switch 19 is provided at the lower right portion of the front wall of the rice storage unit 4.
[0015]
The cleaning part B is formed in a thin bottom part and is cylindrical and has a hollow cleaning tank 16 that is detachably attached to the lower surface of the top plate, a stirring device 20 provided at the center of the cleaning tank 16, and a cleaning tank. A dropping valve 22 for opening and closing the rice discharge port 21 of the jacket 1 detachably attached to the lower end of 16 is provided.
[0016]
The cleaning tank 16 has a slope portion 16b that tapers from the middle portion of the cylinder toward the lower end, and in the longitudinal direction, the slope portion 16b extends from the middle portion of the cylinder portion 16a to the upper end of the slope portion. A hole 16c is provided from the upper end to the middle part, and in the lateral direction to the substantially first half part in the circumferential direction. Reference numeral 16d denotes a lid formed by a flat plate larger than the hole 16c. The lid 16d is provided with a cylindrical portion 16a by means of fixtures (patch-on locks used in the embodiment) 16e provided at the upper and lower ends and the left and right ends. And it is provided in the slope part 16b so that attachment or detachment is possible.
[0017]
Therefore, when performing maintenance such as inspection or cleaning of the cleaning tank 16, if the lid 16d is removed and the hole 16c is opened, the inner wall of the cleaning tank 16 and the stirring device 20 are easily maintained from the exposed large hole 16c. be able to.
[0018]
The stirring device 20 includes a hollow stirring shaft 23 that is rotatably provided with the motor 12 as a drive source and has a longitudinal axis, and a stirring body 24 attached to the stirring shaft 23. . The operation panel 25 is a switch unit provided with various switches for setting rice cooking conditions such as the amount of rice cooking, water adjustment, washing method, soaking time, uneven time, switch for setting one pot / summary / continuous rice cooking mode, etc. 47. Switch 49 that can perform manual operations such as clock, test, metering, rice washing, clean water, sewage, water level, drainage, dropping, reset, etc., hour / minute setting switch by reservation timer, day of week specification switch, help switch Further, there are provided a display unit 48, a start switch 26, and the like for displaying the scheduled pot number switch, during reservation, the current time, the total number of pots, the day of the week, the rice cooking work state, and the like.
[0019]
Note that the working conditions for the operation of each switch provided on the operation panel 25 are the calculation control section (control means, hereinafter referred to as “CPU”) of a microcomputer having a memory containing necessary data, a control program, and the like. ) 27 and a control signal for driving or the like is output.
[0020]
The dropping valve 22 is detachably provided at the lower end portion of the valve shaft 28 that moves up and down the stirring shaft 23 using the motor 13 as a drive source, and an overflow tube is provided above the cleaning tank 16. A rectangular overflow port 31 communicating with the drainage box 30 is provided by 29.
[0021]
The jacket 1 is provided with the drainage box 30 at its lateral end in a detachable manner, and a circular drainage port 4 that can communicate with the drainage box 30 on the lateral wall 3 of the drainage box. 32 is an opening / closing valve operating mechanism for operating the drain opening / closing valve 5 for opening / closing the drain opening 4. The cam 35 is detachably attached to the tip of the motor shaft 34 rotated by the motor 33, And an opening / closing valve shaft 38 provided on the bearing body 37 of the drainage box 30 so as to be slidable in the lateral direction.
[0022]
The drain opening / closing valve 5 is detachably provided at the tip end of the opening / closing valve shaft 38, and opens and closes when the opening / closing valve shaft 38 moves forward most and penetrates the drain port 4 and has a smaller diameter than the drain port 4. The valve body 39 and a cylindrical body 40 which is formed in a cylindrical shape having flexibility (for example, rubber, resin, etc.) having an outer diameter larger than that of the drain port 4 and is detachably fitted to the outer peripheral portion of the on-off valve body 39. And. Of course, the on-off valve body 39 and the cylindrical body 40 may be integrally formed of a flexible member. A return spring 41 is loosely fitted to the on-off valve shaft 38 and is provided between the bearing body 37 and the head 36, and always presses the head 36 toward the cam.
[0023]
Then, during one rotation of the motor shaft 34 of the motor 33, the relationship between the cam 35 and the drain opening / closing valve 5 includes four steps A, B, C and D as shown in FIGS. Have. That is, while the motor shaft 34 makes one rotation, the work is performed in the order of the process A, the process B, the process C, and the process D in the rotation direction, and the process returns to the process A again.
[0024]
In step A, since the cam 35 is not pressed against the head portion 36 of the on-off valve shaft 38, the on-off valve shaft 38 is stopped at a predetermined position on the cam side together with the head portion 36 receiving the pressing force of the return spring 41, As a result, the drain opening / closing valve 5 brings the drain opening 4 into a “fully open” state. In the process B, the cam 35 pushes the head 36 while compressing the return spring 41 to move the on-off valve shaft 38 most forward, so that the drain opening / closing valve 5 puts the drain opening 4 in the “fully closed” state.
[0025]
In step C, the head 36 is pressed by the return spring 41 or the cam 35 so that the on-off valve shaft 38 is positioned in the middle, so the drain opening / closing valve 5 puts the drain 4 in the “half-closed” state. In step D, the cam 35 presses the head 36 while compressing the return spring 41 to move the on-off valve shaft 38 most forward, so that the drain opening / closing valve 5 puts the drain opening 4 in the “fully closed” state. ing.
[0026]
The motor 33 is configured such that the process A to the process D can be selected by the limit switches 50, 51, 52, and 53, although not shown, according to the drive command signal from the CPU 27. Reference numeral 42 denotes a drainage pipe having one end connected to the drainage box 37 and the other end viewed through the drainage channel.
[0027]
The water supply pipe 15 is provided in the middle from the drain side in the order of a check valve and a solenoid valve so as to be able to communicate with a water supply source, pass through the top plate and look into the washing tank, and supply nozzles to diffuse water at the tip It is set as the structure provided with. The rice cooking unit C includes a rice cooker 2 including an outer pot 43, an inner pot 44, and a rice lid 45, and a rice cooker 8 on which a heating source (for example, a gas stove) is placed and movable in the front-rear direction. It is a configuration that automatically ignites. In this embodiment, automatic ignition is performed by an ignition command signal from the CPU 27.
[0028]
Referring to the block circuit of FIG. 17, the CPU 27 performs arithmetic, logic, and comparison operations. And among various information input into this CPU27 via the input interface 46, as main information, the amount of rice cooking provided in the switch part 47 of the operation panel 25, water adjustment, a washing method, immersion Cooking time information from each switch to set time, uneven time, one pot / summary / continuous, ignition (manual / automatic), work selection information by manual operation, power on / off information from power switch 19, start switch 26 Work start information and motor stop information from limit switches 50, 51, 52 and 53.
[0029]
Among various information output from the CPU 27 via the output interface 54, main information includes drive command signals to the motors 11, 12, 13, 14, 33, and opening / closing of the solenoid valves. There are a command signal, a notification command signal to the display unit 48 provided on the operation panel 25, and the like.
[0030]
Next, the operation will be described. First, when setting work conditions, the power switch 19 is turned on to energize, and various switches such as the rice cooking amount switch of the switch unit 47 provided on the operation panel 25 are operated. When the rice cooking amount, water adjustment, washing method, dipping time, uneven time, one pot / summary / continuous rice cooking mode are set, the selected work conditions are taken into the CPU 27 via the input interface 46.
[0031]
When the preparation for work is completed and the start switch 26 is turned on, the CPU 27 performs work based on the flow of the control program. First, the CPU 27 sends a drive command to the motor 11 via the output interface 54. A signal is output and activated, and the rice supply 18 is rotated to quantitatively supply rice stored in the funnel 10 of the rice storage unit A.
[0032]
Next, the CPU 27 outputs an “open” signal to the solenoid valve via the output interface 54 and outputs a drive command signal to the motor 12 to start the operation. Therefore, the water sent from the water supply source is supplied. Irrigates the washing tank 16 through the water supply pipe 15 and the check valve, and the agitation shaft 23 and the agitator 24 rotate to agitate and wash the water and rice. Further, since the CPU 27 receiving the stop signal from the limit switch 50 via the input interface 46 does not output a drive command signal to the motor 33 via the output interface 54, the drain opening / closing valve 5 opens the drain port 4 (process A).
[0033]
Accordingly, the sewage produced during the cleaning operation enters the drainage box 30 from the cleaning tank 16 through the jacket 1 and the drainage port 4, and then is discharged out of the machine through the drainage pipe. When the cleaning operation is completed, the drive command signal of the CPU 27 output via the output interface 54 is stopped. Therefore, the solenoid valve is closed and the motor 12 is stopped. Stop both operations.
[0034]
When the water stored in the cleaning tank 16 is drained (managed by time), the CPU 27 outputs an excitation signal via the output interface 54 to open the solenoid valve, and the limit switch 50 Prior to this stop signal, a drive command signal is output to the motor 33 to rotate the motor shaft 34 and the cam 35. Then, when the motor shaft 34 rotates to a predetermined position, the limit switch 51 is turned on. Therefore, the CPU 27 that has received the stop information via the input interface 46 outputs a drive command signal to the motor 33. Since the output is stopped, the motor 33, the motor shaft 34 and the cam 35 are stopped.
[0035]
In relation to this, the cam 35 pushes the head 36 while compressing the return spring 41 and moves the on-off valve shaft 38 slidably guided by the bearing body 37, so that the drain opening / closing valve 5 is connected to the drain opening. 4 is set to the “fully closed” state (step B). Therefore, the water sent from the water supply source is supplied from the water supply pipe 15 through the check valve to the cleaning tank 16 through the nozzle at the tip, and stored. When the water level of the stored water reaches the overflow port 31 (not shown, it is provided so as to be detectable by a full sensor, and the CPU 27 takes in full water information via the input interface 46). Since the CPU 27 stops the excitation signal output via the output interface 54, the solenoid valve is "closed" and the water supply operation is terminated.
[0036]
Next, the CPU 27 outputs a drive command signal to the motor 33 via the output interface 54 in preference to the stop signal of the limit switch 51 and drives it. When the limit switch 52 is turned on, the CPU 27 that has received the stop information via the input interface 46 stops outputting the drive command signal to the motor.
[0037]
In this connection, since the head 36 is pressed by the return spring 41 or the cam 35 and the on-off valve shaft 38 is positioned in the middle, the drain opening / closing valve 5 puts the drain 4 in the “half-closed” state. (Step C). Then, the fresh water for cooking rice stored in the washing tank 16 enters the drainage box 30 from the jacket 1 through the semi-closed drainage port 4, and is guided to a predetermined drainage place by the drainage pipe 42.
[0038]
After a predetermined time, the CPU 27 prioritizes the stop signal of the limit switch 52 and outputs a drive command signal to the motor 33 to rotate the motor shaft 34 and the cam 35. Then, when the motor shaft 34 rotates to a predetermined position, the limit switch 53 is turned on, so that the CPU 27 that has received the stop information via the input interface 46 outputs a drive command signal to the motor 33. Since the output is stopped, the motor 33, the motor shaft 34 and the cam 35 are stopped.
[0039]
In this connection, the cam 35 presses the head 36 while compressing the return spring 41 to move the on-off valve shaft 38 forward, so that the drain opening / closing valve 5 closes the drain opening 4 to “fully closed”. It is in a state (process D). Therefore, the fresh water for cooking rice stored in the washing tank 16 is the amount of water corresponding to the set amount of supplied rice (rice amount of rice cooking) and water adjustment (hardness). Built in memory.
[0040]
At this time, since the clean water drained from the drain port has a small discharge amount per unit time when the sewage generated at the time of washing is drained from the drain port 4, the drainage time can be increased and the water drainage accuracy can be improved. it can. Moreover, since the amount of discharge per unit time from the drain port 4 can be increased when discharging sewage, the work time related to cleaning can be shortened and the work efficiency can be improved.
[0041]
Next, when all or part of the predetermined time is immersed in the washing tank, the CPU 27 outputs a drive command signal to the motor 13 for a predetermined time and then drives the motor 13 to output the drive command signal to the motor 13. Next, after holding the stop state for a predetermined time, the drive command signal is output again to the motor 13 for a predetermined time, and then the output is stopped.
[0042]
During this time, the valve shaft 28 and the dropping valve 22 are lowered to open the rice discharge port 21, so that the rice and water in the washing tank 16 fall through the rice discharge port 21 of the jacket 1 and the inside of the lower rice cooker 2. Housed in the pot 44. After the rice removal, the valve shaft 28 and the dropping valve 22 return to their original positions and close the rice removal port 21. Then, it is automatically ignited by the ignition signal output from CPU27, rice cooking is started, and rice cooking work will be complete | finished when the steaming time passes.
[0043]
When the valve shaft 28 and the drop valve 22 return to their original positions, the CPU 27 drives the motor 33 via the output interface 54 in preference to the stop signal of the limit switch 53 in accordance with this timing. A command signal is output to rotate the motor shaft 34 and the cam 35. When the motor shaft 34 is rotated to a predetermined position (one rotation), the limit switch 50 is turned on, so that the CPU 27 having taken in the stop information via the input interface 46 sends the stop information to the motor 33. The output of the drive command signal is stopped, and the motor 33, the motor shaft 34, and the cam 35 are also stopped.
[0044]
In relation to this, the head 36 is pressed to the cam side by the return spring 41, so that the on-off valve shaft 38 also moves to the cam side and returns to the original position. The drain port 4 is opened (step A). As described above, since the drainage opening / closing valve 5 can drain and drain the sewage generated during washing and the fresh water for cooking rice, the drainage and watering accuracy can be improved while the configuration is simple. This can improve the efficiency of cleaning work.
[0045]
[Example 1]
When draining water from the washing tank 16 through the jacket 1 when the water used to clean the rice is contaminated with sewage or clean water for cooking rice, the drain port 4 provided on the side wall 3 of the jacket 1 is opened and closed. Although the switching means of the drain opening / closing valve 5 to be performed is complicated, it is to implement the drain opening / closing valve 5 capable of switching the drainage with a simple configuration.
[0046]
That is, in this embodiment, the rice storage part A, the washing part B having the washing tank 16 provided at the lower end with a jacket 1 capable of guiding rice and fresh water for cooking toward the lower rice cooker 2, and rice cooking The rice cooking unit C provided with the device 2 is arranged in that order from the upper side. A drain opening / closing valve 5, which is a three-way valve having three passages for opening / closing the drain opening 4 provided on the lateral wall 3 of the jacket 1, is provided. The drain opening / closing valve 5 discharges water from the drain opening 4. This is a rice-washing rice cooker that can be switched to a state of a large amount of drainage, a small amount of drainage or drainage prevention.
[0047]
The drain opening / closing valve 5 has an opening / closing valve having one side communicating with the jacket 1 and penetrating in the lateral direction, and a longitudinal passage 56 penetrating downward with an upper end communicating with an intermediate portion of the transverse passage 55. A main body 57 and a spherical on-off valve 59 which is formed in a middle portion of the on-off valve body 57 and is formed with a T-shaped passage 58 capable of communicating with the vertical and horizontal passages 55 and 56 inside. is doing. Although not shown, the on-off valve 59 is connected to the motor shaft 61 of the motor 60 and is rotated through the motor shaft 61 that is rotated by driving the motor 60. Yes. The motor 60 is driven and stopped by a detection signal from a limit switch (not shown) that determines the stop position in the same manner as described above.
[0048]
When water is stored in the washing tank, the opening / closing valve 59 is positioned in FIG. 12 by the motor 60 and the motor shaft 61. Then, the on-off valve 59 closes the communication path with the jacket 1. Therefore, since the water sent to the washing tank 16 is received by the jacket 1, it is not drained.
[0049]
When a large amount of water is discharged from the cleaning tank 16, the on-off valve 59 is positioned in FIG. 13 by the motor 60 and the motor shaft 61. Then, the T-shaped passage 58 of the on-off valve 59 communicates with the jacket 1, the lateral passage 55 and the longitudinal passage 56, so that the water sent to the washing tank 16 passes through the jacket 1, the passage 58 and passes through the lateral passage 55 and A large amount of water is drained from the vertical passage 56.
[0050]
When a small amount of water is discharged from the cleaning tank 16, the on-off valve 59 is positioned in FIG. 14 by the motor 60 and the motor shaft 61. Then, since the T-shaped passage 58 of the on-off valve 59 communicates only with the jacket 1 and the lateral passage 55, a small amount of water sent to the cleaning tank 16 is drained from the lateral passage 55 through the jacket 1 and the passage 58. .
[0051]
As described above, a large amount of sewage generated at the time of cleaning can be drained in a short time with a simple configuration of switching the on-off valve 59, and the accuracy can be improved by draining a small amount when adding or subtracting water.
[0052]
[Example 2]
The flow rate sensor 6 is provided in the drainage passage 62 communicating with the lateral passage 55, and the detected signal is taken into the CPU 27 through the input interface 46, and the unit of water coming out of the lateral passage 55 through the jacket 1. The amount of drainage per hour can be detected. Therefore, it is possible to improve the accuracy of adding and reducing fresh water stored in the cleaning tank 16.
[Brief description of the drawings]
FIG. 1 is a front view of a rice washing rice cooker.
FIG. 2 is a plan view of a rice cooking unit.
FIG. 3 is a side sectional view of a partially cut tank.
FIG. 4 is a side view of the rice-washing rice cooker partially cut away.
FIG. 5 is a front view of an operation panel.
FIG. 6 is a full open view of the drain opening / closing valve.
FIG. 7 is a fully closed view of the drain opening / closing valve.
FIG. 8 is a half-closed view of a drain opening / closing valve.
FIG. 9 is a fully closed view of the drain opening / closing valve.
FIG. 10 is a fully opened view of the drain opening / closing valve.
FIG. 11 is a side sectional view of the drain opening / closing valve in which the opening / closing valve is at the drain stop position.
FIG. 12 is a side sectional view of a drain opening / closing valve in which the opening / closing valve is in a large drainage position.
FIG. 13 is a side sectional view of the drain opening / closing valve in which the opening / closing valve is in a small amount draining position.
FIG. 14 is a front view of a cleaning tank.
FIG. 15 is a plan view of a cleaning tank.
FIG. 16 is a block circuit.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Jacket 2 Rice cooker 3 Side wall 4 Drain outlet 5 On-off valve 6 Flow rate sensor A Rice storage part B Washing part C Rice cooking part

Claims (1)

A rice storage part (A) , a cleaning part (B) provided with a jacket (1) capable of guiding rice downward, and a rice cooking part (C) provided with a rice cooker (2) are arranged in that order from the top. And a drain opening / closing valve (5) for opening and closing the drain opening (4) provided on the side wall (3) while guiding rice and water for rice cooking from the jacket (1) to the lower rice cooker (2). The drain opening / closing valve (5) is a three-way valve having three passages, and the drain opening / closing valve (5) is configured to drain water from the drain opening (4) into a large amount of drainage, a small amount of drainage, or drainage prevention. It is configured so that it can be switched and discharged from two passages (55, 56) when draining a large amount of water, and drained from one passage when draining a small amount of water. A rice-washing rice cooker provided with a flow sensor (6) .

Images