JP3159207B2 - Automatic rice cooker - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic rice cooker for supplying washed rice to cook rice.

[0002]

2. Description of the Related Art A rice tank for feeding rice while measuring by rotating a metering valve is stored in a box body, and the fed rice is washed and then provided below the rice tank. An automatic rice cooker that cooks rice with a rice cooker is known. By the way, when you cook rice with a rice cooker,
The rice cook heat rises from the rice cooker and the bottom of the rice tank is exposed to the rice cook heat. Then, the heat of cooking rice has an adverse effect on the rice in the rice tank.

[0003]

The present invention employs the following technical means to solve such technical problems. That is, a rice tank 4 that accommodates rice and feeds it while metering it by rotating a metering valve 3 of a bottom feed outlet 2 is provided in the box body, and below the rice tank 4 is a rice washing tank 6 for washing the rice fed from the rice tank. And a rice cooker 10 for cooking the rice washed in the rice washing tank 6, and a rice tank 4
Duct that communicates with the tank bottom to expose outside air to the bottom of the tank
The automatic rice cooker is characterized in that an open air port 20 is provided to the duct 18 and the duct 18 .

[0004]

The rice in the rice tank 4 is washed by the rice washing tank 6 while the rice in the rice tank 4 is measured by rotating the metering valve 3, and the rice washed in the rice washing tank 6 is cooked by the rice cooker 10. At that time, the steam rising from the rice cooker 10 during the rice cooking is used for the rice tank 4
, But outside air enters through the outside air port 20,
Since the bottom of the rice tank 4 is exposed to the outside air, it is possible to reduce the adverse effect on the inside of the rice tank 4 due to the heat of cooking rice.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG. 1, an automatic rice cooker is configured to store rice in a box-shaped machine frame 1 and feed the rice while metering it by rotating a metering valve 3 at a bottom outlet 2. The tank 4, a first rice washing tank 6 for washing the rice by driving a rice washing pump 5 under the supply of water after receiving the fed rice, and receiving and rinsing the rice washed in the first rice washing tank 6, A second rice-washing tank 7 for adjusting water after rinsing, a rice cooker 9 receiving rice washed from the second rice-washing tank 7 and cooking rice by a heater 8, and a heater 8 containing the rice cooker 9. Rice cooker 10 for receiving rice cooked by rice cooker, and this rice cooker 1
A rice cooker 12 or the like that can be pulled out from a rice cooker room 11 in the machine frame 1 to the outside with 0 is placed.

In the rice tank 4, a top cover 13 is provided so as to be openable and closable, and a remaining amount sensor 1 for detecting the remaining amount of rice therein.
4. A humidity / temperature sensor 15 for detecting humidity, temperature, etc. of rice is provided, and a duct 18 for blowing in outside air by a fan 17 by a motor 16 is connected to the bottom (FIG. 6). The outside air port 20 for sucking outside air and the moisture port 23 for sucking moisture while evaporating the stored water 21 with the evaporating cloth 22 are blown in while being switched by the switching valve or the switching control valve 24, and are blown into the rice tank 4. By controlling and controlling the humidity of rice to the target humidity, the automation of rice cooking is kept constant and the rice cooking finish is stabilized.

[0007] In the first rice washing tank 6, a suction pipe 26 of the rice washing pump 5 driven by a motor 25 is provided close to a drain valve 27 at the bottom, and an ejection pipe 28 is in the second rice washing tank 7. The rice washing pump 5 drives the rice washing pump 5 and pumps it to the second rice washing tank 7 via the suction pipe 28. The switching gutter 29 at the bottom of the second rice washing tank 7 is switched to the first rice washing tank 6 for circulation. The rice is washed while being transferred (FIG. 4). The drain valve 27 is electromagnetically opened and closed. 3
Reference numeral 0 denotes an overflow port, which communicates with a drain pipe 32 for draining outside the machine together with a drain port 31 at the bottom.

In FIGS. 4 and 5, a water supply nozzle 34 for supplying water by an electromagnetic water supply valve 33 is provided above the first rice washing tank 6, and the amount of water in the first rice washing tank 6 is detected by ultrasonic waves. Water level sensor 35, drain valve 37 at bottom drain port 36
Solenoid or motor 38 for opening and closing the valve and the discharge valve 37
, The ejection pipe 28, the overflow pipe 40, and the like. The discharge valve 37 is controlled so as to be opened upward by a motor 38 or a solenoid against the spring 41 and closed by the tension of the spring 41. The discharge valve 37 is provided with a valve chamber 43 on the upper surface of which a filter 42 for filtering washing rice is formed. The upper end of a drain pipe 44 communicates with the valve chamber 43, and the lower end of the drain pipe 44 An electromagnetic drain valve 45 is provided on the rice washing tank 6 in the middle. The lower end of the overflow pipe 40 is viewed on the first rice washing tank 6. Also, the switching gutter 29 is
The motor is capable of rotating by a certain angle around the discharge port 36 by a motor, and is controlled so as to be switched over to the first rice washing tub 6 and the rice cooker 9 for viewing.

When washing rice, open the discharge valve 37,
When the switching valve 29 is switched to the first rice washing tank 6 side, the rice washing ejected from the ejection pipe 28 is circulated from the discharge port 36 into the first rice washing tank 6 through the switching gutter 29 when rinsing is performed. Closes the discharge valve 37 to receive the washing rice spouted from the spouting pipe 28 and to perform rinsing while supplying water from the water supply nozzle 34. The drainage of the rinsing water is performed by opening the drain valve 45.

When rinsing is performed for a predetermined time, the drain valve 45 is closed to supply water from the water supply nozzle 34, and the water level is detected by a water level sensor 35. Water level sensor 3
5 detects the set water level, the water supply valve 33 and the drain valve 4
5 is closed, the switching gutter 29 is looked up on the opened rice cooker 9, the discharge valve 37 is opened, and the rice washed in the second rice washing tank 7 is transferred into the rice cooker 9 with water.

As shown in FIGS. 1 to 4, the rice-cooking room 11 has a form in which a rice-cooker 10 can be accommodated in a lower front portion of the second rice-washing tank 7, and a bottom portion thereof can be freely pulled back and forth on a rail 46. The rice cooker 12 is provided with a heater 8 that receives the bottom of the rice cooker 9 and heats the rice cooker 9 to cook rice. In the illustrated example, the heater 8 is an electric heater, has an electric cord 50, and has a temperature sensor 51. The heater 8 may be based on gas.
When heating, the heater 8 projects upward from the rice cooker 12 and comes into contact with the bottom of the rice cooker 9.
Alternatively, after the heat retention, a configuration in which the rice cooker 12 is pulled down below the rice cooker 12 may be adopted.

The rice cooker 10 is closed at the bottom, fitted to the outer periphery of the heater 8 and brought close to the bottom of the rice cooker 9 containing the heater 8 therein. A pot edge 52 protruding from the outer peripheral portion of the upper end of the rice cooker 9 is fitted and supported on the upper edge portion of the rice cooker 10. 2 and 3, the rice cooker 10
Has an outer hook 54 that pivots upward around a hinge 53 and opens.
Is always springed in the opening direction by a spring 55, an engaging portion 56 is formed on the upper edge of the rice cooker 10 on the side opposite to the hinge 53, and the outer lid 54 is engaged with the engaging portion 56. The hook 57 is provided so as to be swingable around the pin 58, and the hook 57 is elastically urged by a spring 59 so that the hook 57 can always be engaged with the engaging portion 56.

On the upper side of the outer cover 54, the outer cover 5 is provided.
An operating device for opening / closing 4 is provided. Crank 6 rotated by motor 60 attached to machine frame 1
1, through the rod 62, the hinge 53 on the machine frame 1 side.
An arm 63 provided so as to be pivotable up and down around a shaft 74 substantially coaxial with a solenoid 64 and a spring 6
There is provided a finger arm 66 which is rotated by 5. A finger roller 67 provided on the finger arm 66 is
The opening operation position A on the push button 68 protruding from the base of the hook 57 and the handle 6 of the outer lid 54 outside the push button 68
The finger roller 67 can be operated on the push button 68 by the solenoid 64 so as to be rotatable so as to be switchable to the closing operation position B on the ninth portion. 70 is an outer lid 5 also serving as a stopper provided on the machine frame 1
This is an outer lid sensor that detects four openings.

The rice cooker 9 has a cooker lid 71 which can be opened and closed freely, and a knob 72 is provided at the center of the cooker lid 71. The outer lid 54 is provided with a retainer for holding the knob 72, and the opening and closing of the outer lid 54 enables the shuttle lid 71 to be opened and closed together. Reference numeral 73 denotes a controller provided on the upper front of the machine frame 1 and has a microcomputer.

Rice is stored in the rice tank 4 and the rice cooker 1
In 1, a rice cooker 12 on which an empty rice cooker 9 is placed is pushed in to start a rice cooking operation. When the rice fed by the metering valve 3 reaches the set amount, the feeding of the metering valve 3 is stopped. The rice supplied into the first rice washing tank 6 is supplied to the supply nozzle 34.
With the water supplied through the discharge outlet 36 of the discharge valve 37 opened, the switching gutter 29 and the like, the rotation of the rice washing pump 5 causes the suction pipe 26, the ejection pipe 28, the second rice washing tank 7,
The rice washing operation is performed while being circulated to the first rice washing tank 6 via the switching gutter 29 and the like.

When the rice washing is performed for a certain period of time, the process proceeds to the rinsing process, the discharge valve 37 is closed, and the rice washed transferred to the second rice washing tank 7 is supplied with water from the water supply nozzle 34, the valve chamber 43 and the drainage water. Rinsing is performed by drainage from the pipe 44. When this rinsing has elapsed for a predetermined time, the water level of the water supply valve 3
3, and the drain valve 45 of the drain pipe 32 adjusts the set water amount.

When the water adjustment is completed in this manner, the water supply valve 33 and the drain valve 45 are closed, and the pot lid 71 is closed.
The discharge gutter 29 is switched to the upper side of the opened rice cooker 9 and the discharge valve 37 is opened. A set amount of rice washing and water are supplied from the first rice washing tank 6 into the rice cooker 9. When cooking of rice is completed,
The switching valve 29 is switched over to the first rice washing tank 6 so that the subsequent rice washing operation can be started. In the rice cooker 9, when the arm 63 is pushed down by the drive of the motor 60, the outer lid 54 pushed by the finger roller 67 at the closing operation position B is closed, and the hook 57 is locked by the engaging portion 56. The pot lid 71 is in a closed state, and rice can be cooked.

At this time, if the water content of the washed rice is appropriate, the cooked rice by the heater 8 is immediately started. When the water content is not enough, rice cooking is started after a predetermined time has passed by a setting timer or the like. When the rice cooking is completed, the rice cooker 12 is pulled out in a state where the arm 63 is moved upward, and the rice cooker 10 on the rice cooker 12 is conveyed to the rice cooker take-out position while the rice cooker 9 is accommodated. Alternatively, the worker may open the outer lid 54, take out the rice cooker 9, and take out the cooked rice.

After the rice cooker 10 has taken out the rice cooked in this manner, the rice cooker 10 accommodates the washed empty pot 9 and closes the outer lid 54 to which the pot lid 71 is attached, and then puts it on the rice cooker 12 and enters the rice cooker 11. Push. When receiving the rice washing supply from the second rice washing tank 7 in the rice cooking room 11, the finger roller 67 is pushed down at the opening operation position A by the drive of the motor 60 and the solenoid 64, and the push button 68 is pushed to push the hook 57. Engaging part 5
6. Remove from 6 and take the lid open position. In this open position, the outer lid 5
4 state becomes opened upward by the spring 55, it is detected by the outer lid sensor 70. Switching gutter 29 during rice washing supply
Is switched to the position above the rice cooker 9 when the outer lid sensor 70 detects that the outer lid 54 is open.

[Brief description of the drawings]

FIG. 1 is a side sectional view.

FIG. 2 is a partial cross-sectional side view showing an operation state of a portion viewed in the direction of arrow II in FIG. 1;

3 is a partially sectional side view showing an operation state of an arrow II section in FIG. 1;

FIG. 4 is an enlarged side sectional view of a part viewed from an arrow IV in FIG. 1;

FIG. 5 is an enlarged side sectional view of a part viewed from an arrow V in FIG. 4;

FIG. 6 is an enlarged side sectional view of a portion taken along the arrow VI in FIG. 1;

[Explanation of symbols]

1 machine frame 8 heater 9 rice cooker 10
Rice cooker 11 rice cooker room 12 rice cooker 54 outer lid
71 Pot lid

Claims (1)

(57) [Claims] 1. A rice tank (4) for storing and feeding rice while being metered by rotation of a metering valve (3) of a bottom feeding outlet (2) is provided in the box body. rice washing tank 6, and provided with a rice cooker 10 for cooking the rice was rinsed rice with rice washing tank 6, the said box body through communication with the bottom of the tank to expose the outside air at the bottom of the rice tank 4
An automatic rice cooker characterized by having a duct 18 and an outside air port 20 to the duct 18 .