JPH0345219A - Automatic rice boiler - Google Patents

Abstract

PURPOSE:To prevent the occurrence of incapability of rice washing due to rice clogging by providing a feed water nozzle for feeding water to the inside of a rice washing vessel, providing a drain ditch having an upper opening at the lower part of the external surface of the vessel, and connecting the ditch to a discharge pipe. CONSTITUTION:A water jet from a feed water nozzle 68 is directed toward the inner surface and the center of a rice washing vessel 53, thereby supplying uniformly water from the upper side of the rice and enabling the efficient rice washing. Furthermore, a net 56 provided for a valve 54 causes the water to flow into a gap A between the net 56 and the valve 54, and is separated from the rice. After rice washing, the water is discharged through a discharge pipe 67. The rice after washed actuates the valve 54 downward via an axis 61 on the operation of a push rod 75 due to the load of a solenoid 77, thereby opening the bottom of the rice washing vessel 53. The valve 54 stops at the maximum compression position of a spring 62. By setting the proper operation time of the solenoid 77, however, the rice can be made to slide on the surface of the net 56 and easily and smoothly drop into the pan 50. Even if water overflows from the vessel 53 during water feed, the water flows from a drain ditch 67a to the discharge pipe 67, thereby preventing the incapability of rice washing due to rice clogging.

Description

[Detailed description of the invention] Industrial applications The present invention relates to an automatic rice cooker that automatically adds water.

Conventional technology A conventional automatic rice cooker is disclosed in Japanese Patent Application Laid-Open No. 49-1322732, for example.
This is shown in Japanese Patent Application No. H-7, and will be explained with reference to FIG.

In the figure, 1 is the container body of the automatic rice cooker, 2 is the rice stock case, 3 is the rice measuring device, and 4 is the electromagnet that operates the measuring device, and the measurement is determined by the number of operations. Reference numeral 5 denotes a water reservoir provided at the lower part of the measuring device 3, which communicates with an adjacent water tank 6 through a number of holes 7 that do not allow rice grains to pass through, but the holes 7 may have a slit shape. Numeral 8 is a water pipe that sends water into the water tank 6, 9 is a valve, and 10 is a float, which maintains the water level in the water tank 6 at a constant level. 11 is a water level, 12 is a screw for washing rice and transferring washed rice, 13 is a motor, 14 is a transport pipe, 15 is a transport pipe outlet, and a pot 17 that is detachable from the container body 1.
It is arranged on the upper part of the housing part, is fixed to a lid body 18 that seals the pot 17 when the pot 17 is housed in the container body 1, and is exposed inside the lid body 18. Reference numeral 16 denotes a backflow prevention lid that seals the outlet 16 of the transport pipe, and even if the transport pipe 14 is exposed inside the pot 17 sealed with the lid 18 and rice is cooked in the pot 17 of the case, steam from cooking rice and This is to prevent pressure from flowing back to the transport pipe 14 side. 193 . . . are holes formed in the peripheral wall of the pot 1A that are small enough to prevent rice grains from flowing out, and the holes 19 may be in the form of slits. 20 is a backing attached to the periphery of the lid 18; 21 is a sealing body that seals the hole 19 formed in the lid 17; when cooking rice in the pot 17, the sealing body 21 closes the hole 19;
By sealing, rice can be cooked without water flowing out from the holes 19 even in the pot 17 where the holes 19 are present. 2
2 is a spring that presses the sealing body 21 against the pot 17; 23 is an electromagnet that separates the sealing body 21 from the pot 17; and 24 is a drainage channel, which is tubular in the drawing. A backing 26 is attached to the opening, and as this backing 25 comes into close contact with the outer wall around the hole 19 of the pot 17, excess water contained in the pot 17 flows out as an overflow. The drainage channel 24 is integrated with a heat insulation board 34, which will be described later.
It is arranged so as to surround the entire circumference of the pot 17. Reference numeral 26 denotes a drainage and water level adjustment pipe, which is attached to the drainage channel 24 so that it can be raised and lowered without leaking water. 27 Drainage and water level adjustment pipe 26
By aligning the lower end 28 of the water hole drilled in the water hole with the height of the rice cooking water in the pot 17, the amount of water used for cooking rice can be adjusted. Reference numeral 29 denotes a rack provided in the drainage and water level adjustment pipe 26, and 30 indicates a pinion that engages with the rack 29, which is interlocked with the operation switch of the electromagnet 4 of the rice measuring device 3 to determine the level of water at the same time as the rice is weighed. 32 is a drain pipe, 33
is a malfunction prevention switch that prevents water flow from flowing into the installation part of the pot 17 when the pot 17 is not present.

34 is a heat insulating board, and a heater such as an electric heater is installed in the part of this heat insulating board 34 that comes into contact with the bottom of the pot 17. 35
is the lid of rice stock cane 2.

The operation of the automatic rice cooker configured as above will be explained. First, an arbitrary amount of rice is measured by activating the electromagnet 4, and the drain/water adjustment pipe 26 is raised and lowered to set the lower end 28 of the water passage hole 27 at the height of the water level in the pot 17. Rice weighed by a weighing device 3 falls into a water reservoir 5 containing water at a constant water level. At the same time, if the screw 12 is rotated by driving the motor 13 after some time, the rice that has fallen into the water reservoir 6 will be washed by the rotation of the screw 12, and the rice that has fallen into the water reservoir 6 will be washed by the rotation of the screw 12. When the water rises through the transport pipe 14 and flows into the pot 17 from the outlet 15, the rice grains are sent to this water and also move through the transport pipe 14 and are sent to the pot 17. In this case, according to the experimental results, the flow rate of the water reservoir 5 is 5/sec.
If the rice is prepared, the rice is transported vertically up the transport pipe 14. The excess water that has flowed into the pot 17 along with the rice is removed from the hole 19.
Yoshi drainage channel 242 water hole 27. Drainage and water adjustment pipe 26
゜When the rice is drained in the order of the drain pipe 32 and all the rice is sent into the pot 17, the motor 1 is turned on by a timer etc. built into the vessel body 1.
3 stops, the feeding of water into the transport pipe 14 is stopped, so that water in the pot 17 above the lower end 28 of the water passage hole 27 is discharged through the hole 19. Put it away.

At this point, the attractive force of the electromagnet 23 is released, and the sealing body 21 completely seals the hole 19 of the pot 17 by the force of the spring 22.

Next, after about 10 minutes of immersion using a timer built into the container 1, rice is cooked using a heating element in the same manner as in the past.

6 Problems to be solved by Beige's invention In conventional automatic rice cookers, small holes 7 including slits are provided to prevent rice grains from flowing out during rice washing. When crushed rice, etc. is jammed into these holes 7, the amount of water flowing out decreases, and even if the motor 13 attempts to transfer the rice and water, the amount flowing through the transport pipe 14 decreases, making it impossible to send the rice. There was an issue.

The present invention has been made in consideration of the above-mentioned conventional problems, and an object of the present invention is to prevent rice from becoming impossible to transport using rice chains.

Means for Solving the Problems In order to achieve the above objects distantly, the present invention includes a measuring device for weighing stored rice, and a transfer device for transferring the rice from the dosing device to a rice cooking section. The rice-washing container includes a pot for storing food to be heated such as rice, a cylindrical rice washing container with an opening on the top, and a cylindrical rice-washing container with an opening on the top, which is disposed approximately in the center of the lid covering the opening on the top of the pot. After the rice is transferred to the rice washing container, a water supply nozzle for supplying water is provided inside the rice washing container, and a drainage groove having an open top surface is provided at the lower part of the outer periphery of the rice washing container, and this drainage groove is It is connected to the drain pipe.

Function: In the automatic rice cooker having the above configuration, rice is metered and transferred, the rice is placed in the rice washing container, and then the rice is washed by flowing water into the rice washing container using the water supply nozzle. At this time, if the flow of water becomes poor due to small rice or broken rice, the water overflows from the top opening of the rice washing container. At this time, by providing a drain groove with an open top on the lower part of the outer periphery of the rice washing container, overflowing water flows to a drain pipe connected to the drain groove, and rice washing can be continued.

Embodiment An embodiment of the present invention will be described with reference to FIGS. 1 to 3.

In the figure, 4o is a rice bin for storing rice, 41 is a measuring device for measuring rice, 42 is a solenoid that operates the measuring device 41, 43 is a shaft that supports the measuring device, and solenoid 4
When 2 is energized, the rice jug 40 side of the measuring device 41 is opened, and the lower end is closed, and the rice enters the measuring device 41 and its volume is measured. 4
Reference numeral 4 denotes a rice polishing machine which has a cylindrical shape and has brush bristles planted in a spiral shape on its surface, and is rotated by a motor 46. Reference numeral 46 denotes a transfer device, which in FIG. 2 is a belt made of soft resin that rotates counterclockwise, and has a large number of protrusions 47 on its surface.

The transfer device 46 is stopped from rotating by a motor (not shown). On the 4th, the rice cooking section 49 is pulled out and stored inside the main body using a Nuride rail or the like. 6o is a pot for storing food to be heated such as rice. 51 is a heating means for placing and heating the pot 50. Reference numeral 52 denotes a lid that covers the upper opening of the pot 60, and a cylindrical rice washing container 53 is disposed in the center thereof.

Reference numeral 54 denotes a valve that can open and close the bottom opening of the rice washing container 53, and has a conical shape with a hole 55 in the center. Reference numeral 56 denotes a net disposed a certain distance A apart from the cone of the valve, and a ring 57 is attached to the cylinder 58 of the valve 54 so as to be able to freely fit into the valve 54.
4 is removably fixed. The ring 57 may be fixed to the cylinder 58 with a screw or the like and attached to the cylinder 9. 59 is a ring-shaped s fixed to the outer periphery of the valve 54.
It is a ring-shaped gasket having a ta-a tip and contacts the inner periphery of the rice washing container 53 with a constant pressure. Patsukin 59
is made of silicone rubber, etc. Reference numeral 60 denotes a hole provided in the lower part of the cylinder 58, and is fixed to the threaded portion of the shaft 61 via a nut 83. The shaft 61 is rod-shaped and has a shape similar to the head of a head nail, and a spring 62 is engaged therewith. The spring 62 is the shaft 61
The dimensions are set such that the inner circumferential surface of the shaft support cylinder 63 can expand and contract in the outward direction. The shaft support cylinder 63 is detachably attached to the upper surface of the rice washing container 53 via a screw or the like. A hole is provided in the bottom surface 64 of the shaft support cylinder of the housing, through which the shaft 61 passes, but through which the spring 62 cannot pass. Reference numeral 65 denotes a side hole provided on the side surface of the rice washing container 53, and a rice washing net 66 that allows water to pass through but does not allow rice to pass through is fixed in the hole. Rice washing net 66
may be a slit.

67 is a drainage pipe provided in the rice washing container 53.

6γa is a drain groove provided at the lower part of the outer periphery of the rice washing container 53, and a drain pipe 67 is connected thereto.

10"-7 68 is a water supply nozzle that sprays water onto the rice after the rice is placed in the rice washing container 53. A hollow ring-shaped cylinder 69, which contains water at one end, is connected to the water supply tank via the pump 70. 71. 72 is a hole in the inner peripheral direction of the rice washing container 53;
A plurality of holes 3 are provided in the water supply nozzle 68 toward the center of the rice washing container.

74 is a water supply valve that supplies water to the tank 71 via the water supply pipe 75. 76 is a push rod that pushes the head of the shaft 61 downward, and the solenoid 77 is pushed through the solenoid link 76.
It is activated by Reference numeral 78 denotes a nupiraru which moves the rice carried by the heald 46 by means of the upper surface of the rice washing container 53, and is rotated by a drive motor γ9. Reference numeral 80 is a drain frame that receives water after washing the rice and guides it to a drain pipe 81. 82 is a control unit, which includes the above motors 45, 79, pump 70 and solenoid 4.
2°77, water supply valve 74. Controls the heating means 61 and the like.

The operation of automatic rice cooking will be explained based on the above configuration.

When the amount of rice to be cooked is set by operating the control unit 82, the solenoid 42 operates according to this amount, and after measuring a predetermined amount of rice, a part of the surface of the rice is polished using the rice grinder 44, and then the process proceeds to transfer 11. It is sent to the sending device 46. The rice is conveyed to the upper part by the protrusion of the transfer device 46. Thereafter, the rice is carried into the washed rice container 53 from the upper surface by the spiral 78. The valve 54 and the shaft 61 are fixed at the bottom via a nut 83, while the spring 62
is applying an upward force to the shaft 61, so the valve 54 is closed at the bottom of the rice washing container 63 via the gasket 59. Therefore, when a certain amount of rice accumulates in the rice washing container 53, water is jetted out from the water supply nozzle A/68 and washing of the rice is started. This amount of water may be small depending on the amount of rice to be polished using the rice polishing machine described above. Furthermore, the taste of the rice may be adjusted by changing the amount of polished rice depending on differences in rice, such as old rice and new rice.

By directing the water jet from the water supply nozzle 68 toward the inner periphery and center of the rice washing container 68, water is sprayed evenly over the ice surface, allowing for efficient rice washing.
The dirty water flows into the gap A between the screen 56 and the valve 54 and is separated from the rice. This concept is similar to the sieve process used to improve drainage during rice cooking and to prevent dirty water from being reabsorbed into the rice. Water after washing the rice is drained outside the main body through a drainage pipe 67 for four days.

The rice after washing is pushed to the push rod 75 by the load of the solenoid 77.
With this action, the valve 54 is moved downward via the shaft 61, and the bottom of the rice washing container 53 is opened.

The valve moves downward under the load of the push rod 75 and stops at the maximum compression position of the spring 62, but by appropriately setting the operating time of the solenoid 77, the rice easily slides over the surface of the net 56 and into the pot 6o. It can be dropped smoothly.

By repeating the above steps nine times depending on the amount of rice to be cooked, it is possible to wash rice according to the amount of rice.

After that, the water supply valve 74 and the pump 70 are controlled to send a predetermined amount of water, and at the same time water is spouted from the water supply nozzle (v68), the valve 54
Simply open the rice cooker, add water for cooking rice to the pot 50 at the set speed, and start cooking rice.

Effect of the invention The present invention has the following effects.

In other words, even if water overflows from the rice washing container especially during the water supply process of each process of washing rice, the overflow water will flow from the drain 13/water channel to the drain pipe and then to the drain pipe, so rice washing will continue. At the same time, the inability to wash rice due to the rice dumping is prevented. Kakitata, 10,000,000,000,000 yen! Even if rice grains occur, by opening and closing the valve, the rice will fall under its own weight, so rice grains (t, b) can be extremely reduced.

[Brief explanation of drawings]

FIG. 1 is an exploded perspective view of essential parts of an automatic rice cooker showing an embodiment of the present invention, FIG. 2 is a longitudinal sectional view of the same, and FIG. 3 is a longitudinal sectional view of essential parts.
FIG. 4 is a longitudinal sectional view of a conventional automatic rice cooker. 40... Rice bin, 41... Measuring device,
46... Transfer device, 49... Rice cooking section,
50...pot, 52...lid, 53...
... Rice washing container, 54 ... Valve, 67 ...
・・Drainage pipe, 67a・・Drainage groove, 68・・
...Water supply nozzle /I/.

Claims (1)

[Claims] It has a measuring device that weighs the stored rice, and a transfer device that transfers the rice from this measuring device to a rice cooking section. A cylindrical rice washing container with an opening on the top surface disposed approximately in the center of the lid body covering the top opening, and after the rice transferred by the transfer device is transferred to the washing rice container, water is supplied to the inside of the washing rice container. The automatic rice cooker is provided with a water supply nozzle, a drain groove having an open top surface is provided at the lower part of the outer periphery of the rice washing container, and the drain groove is connected to the drain pipe.