JP3629116B2 - Rice washing equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a rice washing apparatus for washing (sharpening) rice for rice cooking, and is a technology used in the rice washing section of a fully automatic rice cooker (rice cooker with a rice washing function) that automatically performs from rice washing to rice cooking. is there.
[0002]
[Prior art]
Conventionally, many inventions related to a rice washing machine and a rice washing apparatus of a fully automatic rice cooker have been made. The conventional invention can be summarized as follows.
[0003]
In the first case, a rice washing container provided separately from the rice cooking pot is provided, and the rice is washed by stirring using a water stream. JP-A-57-134122, JP-A-58-67216 And JP-A-58-105726.
[0004]
In the second case, a rice washing container provided separately from the rice cooking pot is provided, and the rice is washed by stirring using a stirrer. JP-A-59-181112, JP-A-61- No. 272017, JP-A-57-112821 and the like.
[0005]
The third example is rice washing by rotating a cooking pot, and Japanese Patent Laid-Open No. 63-264023 is available.
[0006]
In the fourth example, rice is washed by a water flow inside a cooking pot, such as JP-A-63-143011 and JP-A-63-209616.
[0007]
The fifth example is rice washing inside a cooking pot with a stirrer provided at the bottom or lid of the cooking pot, or by stirring and washing rice by rotating the cooking pot itself, Japanese Patent Laid-Open No. 63-288112, Japanese Laid-open Patent Publication No. 2-133122.
[0008]
In the sixth example, the surface is polished without using water by a dry rice washer provided separately from the rice cooking pot, and Japanese Patent Laid-Open No. 63-230117 is disclosed.
[0009]
[Problems to be solved by the invention]
In such a conventional configuration, in the first case and the fourth case, the rice is washed by a water flow, so the difference in the stirring ability at the time of washing the rice tends to vary depending on the water pressure of the tap water and the amount of rice to be washed, and stable rice washing performance cannot be obtained. There's a problem. Moreover, since a large amount of water was required, there was a problem economically.
[0010]
In the second case, complicated mechanisms such as valves and shutters are required for the drainage path of the washing water and the movement path of the washed rice, and the area around the container for washing the rice is moved when the rice washed in the container for washing the rice is transferred to the rice cooking pot. The problem is the treatment of the rice adhering to the rice, and there was a problem that water would enter the cooking pot above the water level appropriate for cooking when it was poured with water.
[0011]
In the third case, when the rice is put into the sealed container and when the cooked rice is served, the lid that opens needs to be sealed, so the structure of the pan is complicated and the handling is difficult, and the water supply and drainage provided in the sealed container The valve has a drawback that it cannot be sealed when a small grain of rice cracked during drainage is caught. In addition, because rice and water in the sealed container have inertia, even if the spherical sealed container is rotated, only the container rotates, and the rice and water in the inner container maintain the position before the rotation and there is a problem in the rice washing performance. . In addition, there is a problem that a means for releasing the pressure of steam generated during cooking is not found because of the sealed container.
[0012]
In the fifth case, in Japanese Patent Laid-Open No. Sho 63-288112, rice is attached to the stirring blade at the time of cooking rice, and there is a problem in terms of hygiene and cleanability. Further, in JP-A-2-213121, the cleaning performance is good because no stirring blade is required, but it is difficult to provide a drain valve directly on the rice cooking pan (the cracked rice fragments during drainage clog the valve). And the valve will not close), the rice grains are dehydrated at high speed, and this causes a lot of rice grains to adhere to the side walls and lids of the rice cooking pan. There is a problem that rice cannot be cooked without moving.
[0013]
In the sixth case, the structure is simple in that it does not use water, but it is difficult to say that it is washed with rice, it is an operation of wiping and polishing the surface of rice grains, and there is a problem with hygiene, and above all, physiological resistance is generated. There is a problem that is unacceptable to consumers.
[0014]
[Means for Solving the Problems]
In order to solve the above problems, in the present invention, there is a rotating plate that is opposed to the fixed plate with a certain interval, provided with driving means for rotationally driving the rotating plate, and rice is placed between the fixed plate and the rotating plate. A rice input part to be supplied and a water supply part to supply water are provided. A net member is provided further on the outer peripheral end of the rotary plate or below the outer periphery of the rotary plate, and those that do not pass through the net member are led to the rice discharge part. A rice washing apparatus provided with a drainage introduction path leading to a drainage section is provided with a rice introduction path and passing through a net member.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
In the present invention, rice introduced into the gap between the fixed plate and the rotating plate from the rice introducing unit moves to the outer periphery of the rotating plate by the centrifugal force generated by the rotation of the rotating plate. At this time, the rice grains are mixed with the water supplied from the water supply unit, and at the same time, the rice grains move to the outer periphery while rubbing against the fixed plate and the rotating plate by the gap between the fixed plate and the rotating plate. As a result, the surface of the rice grains is polished by rubbing the fixed plate and the rotating plate, and at the same time, the particles on the surface of the rice grains that have been scraped off by water are washed away.
[0016]
The rice grains that have reached the outer periphery of the rotating plate are blown to the outer periphery of the rotating plate by centrifugal force and hit the mesh member. Since the mesh of the mesh member is set to be equal to or less than the rice grains, the rice grains hitting the mesh member do not permeate the mesh member and are discharged from the rice discharge section through the rice introduction path. At the same time, the introduced water is scattered on the outer periphery of the rotating plate by centrifugal force and reaches the mesh member, but the water passes through the mesh and is discharged to the drainage part through the drainage introduction path.
[0017]
According to the above configuration of the present invention, the rice grains and the water move to the outer periphery due to the centrifugal force of the rotating plate, and thus are rubbed together and washed away with water. It does not consume a large amount of water, and the washing performance does not vary depending on the amount. In addition, as in the second case, a complicated mechanism such as a valve or a shutter is not necessary, and there is no problem that rice grains stick to water and remain because the rice is blown by centrifugal force. Similarly, the conventional problems pointed out in the third to sixth cases can be improved, and stable rice washing performance with a small amount of water can be obtained with simple components regardless of the amount of rice.
[0018]
【Example】
Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a cross-sectional view of a rice washing apparatus according to an embodiment of the present invention, and FIG. 2 is an enlarged view of a main part showing a state during rice washing of the embodiment.
[0019]
In the figure, 1 is a main body, 2 is a rice loading portion, 3 is a fixed plate, 4 is a support member, 5 is a driving means, 6 is a rotating plate, 7 is a net member, 8 is a rice introduction path, 9 is a rice discharge portion, 10 Is a drainage introduction path, 11 is a drainage section, and 12 is a water supply section.
[0020]
The structure is such that a rice loading portion 2 is attached to the main body 1 and a fixing plate 3 is attached to the main body 1 below the rice loading portion 2 via a support member 4 so as to be movable up and down. A driving means 5 is attached to the main body 1, and a disk-shaped rotating plate 6 is attached to the rotating shaft of the driving means 5. The rotating plate 6 and the fixed plate 3 are opposed to each other with a certain interval. This interval is set slightly smaller than the size of the rice grain.
[0021]
In addition, the opposing surfaces of the rotating plate 6 and the fixed plate 3 are provided with file-like irregularities on each surface (not shown). A mesh member 7 is provided on the outer periphery of the outer peripheral end of the rotating plate 6, and this mesh is set to a mesh smaller than the rice grain. A rice introduction path 8 is provided on the inner side that does not pass through the net member 7 and continues to the rice discharge unit 9. A discharge introduction path 10 is provided outside the mesh member that passes through the mesh member 7 and is led to the drainage part 11.
[0022]
The main body 1 is provided with a water supply unit 12 that supplies water to the space between the fixed plate 3 and the rotating plate 6.
[0023]
Next, the operation of this embodiment will be described. When the user operates an operation switch (not shown), the driving means 5 operates and the rotating plate 6 rotates. At the same time, water comes out of the water supply unit 12 and is supplied between the fixed plate 3 and the rotating plate 6.
[0024]
Next, when the user throws rice into the rice throwing portion 2, the rice moves downward due to the weight of the rice and falls to a substantially central portion between the rotating plate 6 and the fixed plate 3. The dropped rice moves to the outer periphery of the rotating plate 6 by the centrifugal force of the rotating plate 6.
[0025]
At this time, the space between the rotating plate 6 and the fixed plate 3 is pushed and expanded by the rice grains, but the fixed plate 3 is supported by the support member 4, so that the space is maintained so as to be in contact with the rice grains with an appropriate pressure. Therefore, the rice introduced into the rice introduction part 2 does not decrease at a stretch, but the rice gradually enters between the rotating plate 6 and the fixed plate 3 and gradually decreases.
[0026]
The rice that has entered between the rotating plate 6 and the fixed plate 3 moves to the outer periphery by the centrifugal force of the rotating plate 6 while contacting the rotating plate 6 and the fixed plate 3 with the above-mentioned moderate pressure. At this time, friction is generated by the unevenness provided on the surfaces of the rotary plate 6 and the fixed plate 3, and the surface of the rice grains is polished, and dust and soot adhering to the surface are removed. Since the water supplied from the water supply unit 12 can move without friction unlike rice grains, it flows to the outer periphery at a higher speed than the rice grains by centrifugal force, washing away the dust and soot from the polished rice grains and washing the rice grains surface. effective.
[0027]
From the outer peripheral edge of the rotating plate 6, the rice grains and water that have been moved by the centrifugal force rush out to the outer periphery, but are separated into water that permeates the mesh and non-permeating rice grains by the net member 7 provided on the outer periphery. Is done. The water that has passed through the mesh is collected in one place through the drainage introduction path 10 and drained from the drainage section 11. Rice grains that could not pass through the mesh are collected in one place by the rice introduction path 8 and discharged from the rice discharge section 9.
[0028]
In the present embodiment, the distance between the fixed plate and the rotating plate is made uniform from the central portion toward the outer peripheral portion. However, for example, the central portion may be widened and the outer peripheral portion may be narrowed. In addition, the fixed plate and the rotating plate may be conical and inclined from the center of rotation toward the outer periphery instead of a flat disk shape. In addition, the net member is provided on the outer periphery of the rotating plate. However, the net member is not limited to the outer periphery as long as it is an effective position for separating the rice grains that protrude from the rotating plate and water. Also good.
[0029]
In short, the gist of the present invention is to put rice and water into the gap between the rotating rotating plate and the fixed plate, wash the rice by polishing and stirring, and separate and discharge the rice and water discharged by centrifugal force with a net member. Yes, any equivalent configuration that achieves this purpose may be used.
[0030]
【The invention's effect】
As described above, in the present invention, a rotating plate that is opposed to the fixed plate with a certain interval is provided, a driving unit that rotationally drives the rotating plate is provided, and a rice loading unit that loads rice between the fixed plate and the rotating plate; A water supply unit for supplying water is provided, and a net member is provided further on the outer peripheral end of the rotating plate or below the outer periphery of the rotating plate. Since the rice permeation device is provided with a drainage introduction path that leads to the drainage part, the rice grains and water are rubbed and washed away with water while moving to the outer periphery due to the centrifugal force of the rotating plate, so it is easy A rice washing device having a stable rice washing performance with a space-saving configuration can be obtained.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a rice washing apparatus showing an embodiment of the present invention.
FIG. 2 is an enlarged view of a main part showing the state during rice washing.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Main body, 2 ... Rice input part, 3 ... Fixed plate, 4 ... Support member, 5 ... Driving means, 6 ... Rotating plate, 7 ... Net member, 8 ... Rice introduction path, 9 ... Rice discharge part, 10 ... Drain Introductory path, 11 ... drainage section, 12 ... water supply section.

Claims (4)

A fixed plate (3) and a rotating plate (6) opposed to the fixed plate (3) with a certain distance are provided, and driving means (5) for rotating the rotating plate (6) is provided and fixed. Between the plate (3) and the rotating plate (6), a rice feeding unit (2) for feeding rice and a water supply unit (12) for feeding water are provided, and the outer periphery of the outer peripheral end of the rotating plate (6) or A net member (7) is provided below the outer periphery of the rotating plate (6), and a rice introduction path (8) leading to the rice discharge part (9) is provided for those that do not pass through the net member (7). ) Is a rice washing apparatus provided with a drain introduction path (10) leading to the drainage section (11). One or both of the fixed plate (3) and the rotating plate (6) are configured to be movable up and down, and the distance between the fixed plate (3) and the rotating plate (6) can be changed according to the size of the rice grain. The rice washing apparatus according to claim 1, wherein a member (4) is provided. The rice washing apparatus according to claim 1, wherein the fixed plate (3) and the rotating plate (6) are not conical but substantially conical. The rice washing apparatus according to claim 1, wherein a certain distance between the fixed plate (3) and the rotating plate (6) is different between the center side and the outer peripheral side of the rotating shaft.

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