JP2002066346A - Rice washer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To uniformly and effectively remove bran from the surfaces of milled rice by surely circulating the milled rice within a rice washer which removes the bran of the surface of the milled rice. SOLUTION: The inside surface of a container lid 5 is provided with a guide plate 6 of a projecting shape connecting the points in the side outer than the external diameter of the boss part of rotary vanes 4 and on the side inner than rice washing parts 3 from the outer peripheral part of the container lid 5 to an approximately curvilinear form.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rice sharpener used for cooking rice.

[0002]

2. Description of the Related Art As shown in FIG.
1 and an aleurone layer 12 which is a part of the bran remaining when milled from brown rice. The paste layer 12 is sticky and slightly covers the surface of the starch layer.

[0003] In order to cook white rice 10, rice paste 12
A number of washing machines have been developed to automate the step of removing the paste layer 12, that is, the washing step of washing the white rice 10 to save labor. Typical examples include a method in which water and white rice 10 are stirred using mechanical force, and a method in which white rice 10 is rubbed with running water under water pressure.

[0004] Furthermore, there is a rice mill 14 as a device for removing bran from the surface of brown rice, such as the one shown in FIG. 9 (Japanese Patent Application No. 10-5989).

Here, the configuration of the rice polishing machine 14 shown in FIG. 9 will be described. The rice polisher 14 has a rice storage container 16 for storing brown rice 15 therein. In addition, rice storage container 16
Is formed with a hole 17 for selectively preventing the passage of the brown rice 15 having a side wall made of a wire mesh or the like, and a rotating blade 18 is provided inside. A drive means 19 for driving the rotating blades 18 is provided on the lower surface of the rice container 16. The control means 20 is configured to control the rice polishing process.
21 is a lid.

The operation of the above configuration will be described. The user puts a predetermined amount of brown rice 15 into the rice container 16, attaches the lid 21 to the rice polishing machine 14, and presses an operation start button (not shown) to operate. Is started, the control device 19 operates the driving means 19 according to the milling process program.

When the driving means 19 operates, the rotating blades 18 rotate, so that the brown rice 15 stored in the rice storage container 16 is
Are agitated as shown in FIG.

[0008] Brown rice 15 stirred by rotating blades 18
Is pressed against the side wall of the rice container 16 by the pressing force and the centrifugal force of the rotating blades 18.

The brown rice 15 pressed against the side wall is rubbed against the hole 17 forming the side wall of the rice storage container 16 or collides with the brown rice 15, so that the paste layer 12 forming the surface of the brown rice 15 is scraped off. Will be. And
The shaved paste layer 12 becomes bran and is discharged out of the rice storage container 16 through holes 17 constituting the side wall of the rice storage container 16 together with trash and insects mixed in the brown rice 15.

Further, the brown rice 15 in the rice storage container 16 is successively pressed against the side wall of the rice storage container 16 by the rotating blades 18, so that the brown rice 15 pressed against the side wall rises on the side wall.

The brown rice 15 rising on the side wall rises to a predetermined height of the rice container 16 due to the balance between the increasing component of the force applied to the brown rice 15 and the weight of the brown rice 15. Then, when the brown rice 15 rises to a predetermined height, the own weight of the brown rice 15 becomes larger than the rising component of the force given to the brown rice 15, so that the brown rice 15 falls toward the substantially bottom center of the rice storage container 16 and falls. Will go.

[0012] Then, the brown rice 15 is pressed against the side wall of the rice container 16 by the rotating blades 18, and the paste layer 12 is pressed.
The brown rice 15 is polished by repeating the circulation in which the dirt, insects, and the like are separated, and further rise up the side wall of the rice storage container 16 and fall to the center of the bottom of the rice storage container 16 again.

After a predetermined time has elapsed, the control means 20 stops the driving means 19 and ends the operation.

[0014]

The conventional washing machine and rice mill 14 have the following problems.

A device in which water and white rice 10 are agitated by using mechanical force easily damages white rice 10, and water mixed with bran cannot be quickly separated from white rice 10 and white rice 11 absorbs water with a bran odor. And the cooked rice becomes rice with bran odor,
Furthermore, the fatty acids contained in the bran are oxidized, increasing the heat retention odor.

[0016] In addition, a method of rubbing white rice 10 with running water under water pressure requires a large amount of water, and discharges considerable dirt as wastewater, which imposes a great burden on the environment.

Further, the rice mill 14 shown in FIG.
5 is developed for the purpose of removing hard bran, and the rotating blade 18 applies a strong force to the brown rice 15. Therefore, the white rice 10 is put into the rice mill 14 to remove the surface of the white rice 10. When used to remove the aleurone layer 12, the power of the rice milling system 14 on the white rice 10
To remove the starch layer 12 on the surface is too strong to damage the starch layer 11 of the white rice 10. For this reason, the starch easily flows out during the cooking of the rice, and the cooked rice sticks and loses its physical properties such as stickiness, which adversely affects the taste.

Further, white rice 10 is prepared by the method of rice mill 14 shown in FIG.
When sharpening rice, the white rice 1 with the side wall inside the rice storage container 16 raised
In the case of 0, the white rice 10 only has to fall in the inward direction of the rice storage container 16 and circulate well, but when the raised white rice 10 collides with the lid 21 and the rotational force is weakened, the white rice 10 falls as it is near the rice storage container 16 side wall. Will be. Then, due to the power relationship of the rising white rice 10, a state occurs in which some of the same white rice 10 only repeatedly moves up and down on the side wall of the rice storage container 16 and only some of the white rice 10 is sharpened. For this reason, there is a problem in that the white rice 10 is not efficiently circulated, and the starch cells are too damaged due to excessive rubbing, or the starch layer 12 cannot be sufficiently separated.

In order to solve this problem, the rotating blade 18
The rotation of the white rice 10 caused by the rotation of the rice is more reliably generated, the force for scraping the aleurone layer 12 is reduced to the extent that the white rice 10 is not damaged, and the surface of the rice 10 It is indispensable to give rice uniformly to grind rice efficiently.

[0020]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a rice storage container formed to be substantially cylindrical in a substantially vertical direction for storing rice, and a rotating rice container. A rotary blade freely disposed and having a rice sharpening portion substantially concentric with the rice storage container, a container lid for closing rice in the rice storage container, a driving means for driving the rotary blade, and a rice sharpening process A convex guide plate is formed on the inner surface of the container lid from the outer periphery of the container lid, outside the outer diameter of the rotating blade boss portion, and connecting the points inside the rice sharpening portion in a substantially curved shape. With the configuration, the rice that rises on the side wall of the substantially cylindrical rice storage container due to the centrifugal force of the rotating blades is controlled in direction by the convex guide plate provided on the container lid, moved to the vicinity of the center of the rice storage container and dropped. Can be done. For this reason, the whole rice can be reliably circulated through the rice sharpening unit, and the bran can be efficiently separated without applying unnecessary force to the rice and damaging the starch cells. In addition, this can greatly reduce the time required for rice sharpening.

[0021]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 is characterized in that the inner surface of the container lid is outside the outer diameter of the rotating blade boss from the outer periphery of the container lid and inside the rice sharpening portion which is substantially concentric with the rice container. By forming a convex guide plate that connects the points in a substantially curved shape and making the tip of the guide plate outside the outer diameter of the rotating blade boss portion, the guided rice is directly on the rotating blade boss portion that is rotating at high speed. It can prevent rice from being damaged. In addition, by positioning the tip of the guide plate inside the rice sharpening part which is substantially concentric with the rice storage container, the guided rice is surely dropped inside the rice sharpening part, and one grain of the whole rice is obtained. The grains will circulate through the rice sharpening unit in order. This prevents the rice that has risen due to centrifugal force and falls in the rice-sharpening unit from falling again into the rice-sharpening unit as it is, resulting in over-sharpening or the entire rice being unsharpened. It can improve the efficiency of rice sharpening and reduce the time required for rice sharpening.

According to a second aspect of the present invention, in the first aspect of the present invention, the entire length or the inner surface of the container lid at the leading end portion of the guide plate is inclined along the guide plate toward the rice storage container. The rice grains guided by the guide plate reach the rice storage side wall on the opposite side with the momentum and collide with the rising rice, thereby preventing the rice circulation and preventing the rice from being damaged. .

According to a third aspect of the present invention, in the first or second aspect of the present invention, an R or an inclined portion is provided at a root portion between the guide plate and the inner surface of the container lid, and the bran component separated from the rice surface is removed. It prevents clogging in the corners of the base and reattachment to rice, or in the worst case, decay in the spot.

According to a fourth aspect of the present invention, in the third aspect of the present invention, an R or an inclined portion provided at a root portion between the guide plate and the inner surface of the container lid is increased toward the tip of the guide plate, Prevents the bran component separated from the rice surface from clogging the corners of the root and forms a slope toward the bottom of the rice storage container. The invention according to claim 5, wherein the rice falls into the inside of the portion, and each grain of the whole rice circulates through the rice sharpening section in order, thereby increasing the efficiency of rice sharpening and shortening the time. According to the first aspect of the present invention, by setting the height of the guide plate to be at least as long as the length of the rice grain in the longitudinal direction, at least one or more rice grains are reliably dropped into the rice sharpening portion by the guide plate. That means
Each grain of the whole rice circulates through the rice sharpening section in order, thereby improving the efficiency of rice sharpening and shortening the time.

According to a sixth aspect of the present invention, in the first aspect of the present invention, the gap between the guide plate and the substantially concentric rice-sharpening portion is at least as long as the length of the rice grain in the vertical direction, so that the rice grain is reduced. It can be prevented from being hindered from being caught in the gap between the guide plate and the rice sharpening unit, thereby inhibiting the circulation of rice.

[0026]

Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1) Washing machine 1 shown in FIGS. 1 and 2
Includes a rotary blade 4 having a rice sharpening portion 3 formed substantially parallel to a side wall of the rice container 2, and a lid 5 for covering an upper portion of the rice container 2. Also, on the inner surface of the lid 5, a lid outer peripheral portion 5 is provided.
-A, a protruding guide plate 6 is provided from
a is outside the boss portion 4-a of the rotary blade 4 and is a rice sharpening portion 3;
And is substantially curved as shown in FIG. The driving means 7 drives the rotary blade 4, and the control means 8 controls the driving means 7. 9
Is a hole provided on the side wall of the rice container 2 and not allowing the white rice 10 to selectively pass therethrough.

The operation of the above configuration will be described. A predetermined amount of white rice 10 is put into the rice container 2 and the lid 5 is attached. After the lid 5 is attached and the white rice 10 is stored in the rice storage container 2, the operation is started by pressing an operation start button (not shown).

When the operation is started, the control means 8 operates the driving means 7 according to the washing process program. Then, when the driving means 7 operates, the rotating blades 4 rotate. When the rotating blades 4 rotate, centrifugal force is generated in the white rice 10 toward the side wall of the rice storage container 2. At this time, the white rice 10 existing in the rice storage container 2 successively moves toward the side wall of the rice storage container 2 due to the centrifugal force.
0 pushes up the white rice 10 and moves up the side wall 2-a of the rice storage container 2.

Here, since the lid 5 is arranged on the upper part of the rice container 2, the white rice 10 rising on the side wall of the rice container 2 collides with the lid 5 and moves along the guide plate 6. , Toward the substantially central portion of the rice container 2. Then, when reaching the distal end portion 6-a of the guide plate 6, there is no longer any pushing force, so that the white rice 10 falls downward. Similarly, centrifugal force acts on the white rice 10 again by the rotating blades 4 that rotate, thereby causing the white rice to circulate.

At this time, the paste layer 12 is uniformly removed from the surface of the white rice 10 while moving up the rice-grinding gap formed between the rice container 2 and the rotating part 3 of the rotary blade 4.

In order to generate this circulation, rice 10
It is necessary to ensure that the white rice 10 falls inside the inner wall of the rice sharpening part 3 of the rotating blade 4. When the falling position of the white rice 10 approaches the boss portion 4-a of the rotary blade 4, the white rice 10 collides with the boss portion 4-a rotating at high speed, and the white rice 10 is damaged. Therefore, the position of the distal end portion 6-a of the guide plate 6 is located between the rotating portion 3 and the boss portion 4-a, so that the white rice 10 falls at that position.

(Embodiment 2) As shown in FIGS. 3 and 4, an inclined portion 5-b or 5-c is provided on the inner surface of the lid 5 along the guide plate 6. This ensures that the rice grains guided by the guide plate 6 fall to the bottom surface of the rotating blades 4 below, so that the white rice 10 is efficiently circulated. The inclined portion may be inclined over the entire length of the guide plate 6 as shown at 5-b, or may be partially inclined near the distal end portion 6-a as shown at 5-c.

(Embodiment 3) As shown in FIGS. 5 and 6, the base 6-b of the guide plate 6 is provided with a radius or an inclination.
This prevents the bran component separated from the rice surface from accumulating in the corners of the base and reattaching to the polished white rice 10 or remaining at the site in the worst case and causing rot.

(Embodiment 4) As shown in FIG.
An R or an inclined portion provided at a root portion 6-b of the inner surface of the container and the inner surface of the container lid is configured to become larger toward the leading end of the guide plate. This prevents the bran component separated from the surface of the white rice 10 from clogging the corners of the roots and forms an inclined surface toward the bottom of the rotating blades 4 so that the guided rice can be surely ground in the rice sharpening section. , And each grain of the whole rice circulates through the rice sharpening section in order.

(Embodiment 5) The height h of the guide plate 6 shown in FIG.
Is at least longer than the length of the rice grain in the vertical direction. Specifically, the size in the height direction of rice grains is about 2.5 mm to 3.0 mm.
Since it is 5 mm, it is good to set it to 4 mm or more. Thus, even when the rice grains are guided vertically, they can be prevented from coming off the guide plate 6 and scattering to various places.

(Embodiment 6) The gap w between the guide plate 6 shown in FIG. 1 and the substantially concentric rice sharpening portion 3 is at least as long as the length of the rice grains in the vertical direction. This prevents the rice grains from being caught in the gap between the guide plate 6 and the rice sharpening part 3 even in the vertical direction, thereby preventing the rice circulation from being hindered.

[0038]

As described above, according to the first aspect of the present invention, rice which is substantially concentric with the rice storage container on the inner surface of the container lid and outside the outer diameter of the rotating blade boss from the outer periphery of the container lid. By forming a convex guide plate that connects points inside the sharpening part in a substantially curved shape, and making the tip of the guide plate outside the outer diameter of the rotating blade boss part, the guided rice is rotating at high speed It directly hits the blade boss and can prevent rice from being damaged. In addition, by positioning the tip of the guide plate inside the rice sharpening part which is substantially concentric with the rice storage container, the guided rice is surely dropped inside the rice sharpening part, and one grain of the whole rice is obtained. The grains will circulate through the rice sharpening unit in order. As a result, it is possible to prevent the rice that has been sharpened by the centrifugal force and falls in the rice sharpening section from dropping again into the rice sharpening section, resulting in over-sharpening and the entire rice being unsharpened. This has the effect of increasing the efficiency of rice sharpening and shortening the time.

According to the second aspect of the present invention, the container is guided by the guide plate by a configuration in which the entire length of the container cover or the inner surface of the container cover at the front end portion of the guide plate is inclined toward the rice storage container along the guide plate. The rice grains reach the side wall of the rice storage section on the opposite side with the momentum and collide with the rising rice, thereby inhibiting the rice circulation and preventing the rice from being damaged.

According to the third aspect of the present invention, an R or an inclined portion is provided at a root portion between the guide plate and the inner surface of the container lid, so that the bran component separated from the rice surface is clogged in the corner portion of the root. There is an effect that it does not reattach to the surface, or in the worst case, stay in place and rot.

According to the fourth aspect of the present invention, the radius or the inclined portion provided at the base between the guide plate and the inner surface of the container lid is increased toward the tip of the guide plate, and the bran separated from the rice surface is increased. Ingredients are prevented from clogging in the corners of the base, and the inclined surface facing the bottom of the rice storage container is configured and guided with relatively little resistance, so rice falls reliably inside the rice sharpening part In other words, each grain of the whole rice circulates through the rice sharpening section in order, which has the effect of increasing the efficiency of rice sharpening and reducing the time. By setting the height of the plate to be at least the length of the rice grain in the vertical direction, at least one grain of rice will surely fall inside the rice sharpening part by the guide plate, and one grain of rice as a whole In order to circulate the rice sharpening department in order, Time increase the efficiency there is an effect that can be shortened.

According to the sixth aspect of the present invention, the gap between the guide plate and the substantially concentric rice-sharpening portion is at least as long as the length of the rice grain in the vertical direction, so that the rice grains can be sharpened with the guide plate. It has the effect of preventing the rice circulation from being hindered by being caught in the gap between the parts.

According to the present invention, in order to uniformly remove bran from white rice, it is possible to reliably generate white rice circulation by centrifugal force, and to effectively remove bran from the surface of white rice. It is a machine that uses a machine to grind white rice without using it, and can produce rice grains with reduced rice sharpening work, reduced water pollution due to sap juice, and reduced water-soluble vitamin loss.

[Brief description of the drawings]

FIG. 1 is an overall vertical sectional view of a rice sharpener according to first and fifth and sixth embodiments of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG. 1;

FIG. 3 is a partial sectional view of a guide plate portion of a rice sharpener according to a second embodiment of the present invention.

FIG. 4 is a partial sectional view of another guide plate portion of the rice sharpener.

FIG. 5 is a local sectional view of a guide plate of a rice sharpener according to a third embodiment of the present invention.

FIG. 6 is a local sectional view of another guide plate of the rice sharpener.

FIG. 7 is a perspective view of a rice sharpener guide plate portion according to a fourth embodiment of the present invention.

FIG. 8 is a cross-sectional view of white rice.

FIG. 9 is a sectional view of a conventional rice mill.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rice sharpener 2 Rice storage container 3 Rice sharpening part 4 Rotating blade 5 Lid 6 Guide plate 7 Driving means 8 Control means 9 Hole

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Takeshi Inada 1006 Kazuma Kadoma, Kadoma, Osaka Prefecture F-term in Matsushita Electric Industrial Co., Ltd. 4B053 AA01 BA17 BB02 BJ03 BK36 BL20 4D043 DA06 DL02 DL08 DL10

Claims (6)

[Claims] 1. A rice storage container formed so as to be substantially cylindrical in a substantially vertical direction, and a rice sharpening portion rotatably disposed in the rice storage container and substantially concentric with the rice storage container. Rotating wings, a container lid to seal rice in the rice storage container,
Driving means for driving the rotating blades, comprising a control device for controlling the rice sharpening process, from the container lid outer peripheral portion on the container lid inner surface,
A rice sharpener having a configuration in which a convex guide plate that connects points outside the outer diameter of the rotary blade boss portion and inside the rice sharpening portion in a substantially curved shape is formed. 2. The rice sharpener according to claim 1, wherein the entire length of the container lid or the inner surface of the container lid at the front end portion of the guide plate is inclined toward the rice container along the guide plate. 3. The base of the guide plate and the inner surface of the container lid has an R
The rice sharpener according to claim 1, wherein the rice sharpener has a configuration provided with an inclined portion. 4. The rice sharpener according to claim 3, wherein a radius or an inclined portion provided at a root portion between the guide plate and the inner surface of the container lid is increased toward the tip of the guide plate. 5. The rice sharpener according to claim 1, wherein the height of the guide plate is at least as long as the length of the rice grains in the vertical direction. 6. The gap between the guide plate and the substantially concentric rice sharpening portion is at least as long as the length of the rice grain in the longitudinal direction.
The rice sharpener according to any one of the items 4 to 5.