JP2000317320A - Rice-milling machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide cleaned rice uniform in size by milling uncleaned rice without occurring crushed rice to serve palatable boiled rice. SOLUTION: A rice bran collecting container 2 is provided in a container body 1 in a freely detachable manner and a rice bran removing net basket 3 is provided in the rice bran container 2 in a detachable manner so as to leave an interval. A rotary shaft 4 and stirring blades 5 each comprising an elongated plate 53 revolving horizontally through the rotary shaft 4 are provided in the rice bran removing net basket 3. The outer ends of the stirring blades 5 in the width direction (a) thereof are formed into a projected arcuate shape and the peripheral surfaces of the stirring blades 5 are formed as rice sliding surfaces 54 having a projected arcuate shape.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rice milling machine that stirs brown rice in a bran-removing basket with a stirrer and grinds the brown rice by friction between the brown rice and the brown rice and the bran-removing basket.

[0002]

2. Description of the Related Art Conventionally, as shown in FIGS. 15 to 17, a bran collecting container 2 is detachably provided in a container main body 1, and a bran removing basket 3 is detachably provided in a bran collecting container 2 at intervals. There is known a household rice mill provided with a rotating shaft 4 and a stirring blade 5 formed of an elongated plate horizontally rotated through the rotating shaft 4 in a bran removing basket 3.

The stirring blade 5 of this conventional example has a plate thickness L4 (FIG. 1).
7) is formed such that the outer end width direction a of the elongated thin plate 50 of about 1 mm is linear, and the remaining portion 52 is twisted while the inner end portion 51 of the elongated thin plate 50 is in a horizontal state. The horizontal inner end 51 is formed so as to be gradually inclined upward from the front side to the rear side (indicated by arrows in FIGS. 16 and 17).
Of the headed roll 40 which cooperates with the rotating shaft 4
It is attached to.

When the stirring blade 5 is rotated in the direction of the arrow in FIG. 16 by the electric motor (not shown) via the rotating shaft 4 and the headed roll 40, the brown rice in the bran basket 3 rotates in the same direction and is stirred. The blades 5 are lifted upward by the blades 5 and circulate from the outer peripheral side to the inner central side by centrifugal force as shown by the chain line arrow in FIG. 15. It is polished by friction of 3.

However, according to this conventional example, the elongated thin plate 50
The rice grains in contact with the straight outer edge of may be crushed,
In addition, the thickness L4 of the elongated thin plate 50 is much smaller than the major diameter L1 of the rice grain, and since the peripheral surface of the elongated thin plate 50 is a linear flat surface, an external force during the rotation of the blades is concentrated on the rice grain, and the peripheral surface is damaged. The crushing peripheral surface exerts a knife function to crush rice grains, and it is difficult to completely avoid the crushing. In addition, the rice grains are crushed not only by the blade peripheral surface but also by the broken line portion 52 'formed when the remaining portion 52 is twisted, causing unevenness in the size of the polished rice, and cooking rice of different sizes. In this case, small grains are located below and large grains of rice are located above, and the upper part is good, but the lower part tends to become sticky rice, which is inconvenient.

In addition, in the conventional example, as shown by a chain line arrow in FIG. 15, the circulation of the rice grains is large or small, resulting in so-called uneven polishing. If these rices having different degrees of whiteness are cooked together, it is unpleasant and inconvenient.

Further, in the conventional example, the pressure on the rice grains is insufficient only by closing the fitting lid 6 on the container body 1, and the degree of milling is low. Therefore, it is necessary to increase the degree of whitening by extending the whitening time. However, when the whitening time is long, the frictional heat increases, resulting in so-called hot rice. In particular, there is a large lack of pressing force when whitening a small amount of brown rice, as in the case where brown rice is present only up to the position indicated by the chain line h1, and even if the milling time is extended, only the friction is repeated without removing the bran layer. It is well known that this hot rice is unsatisfactory because of the low friction and the high temperature, resulting in empty friction.

[0008]

The first object of the present invention is as follows.
An object of the present invention is to provide polished rice having a uniform size by milling so as not to generate broken rice, and to be able to cook good-quality rice.

[0009] The invention of claim 2 provides a polished rice having a uniform size and a degree of polished rice by preventing crushed rice from being produced and without uneven crushing. The task is to be able to do so.

According to the third aspect of the present invention, it is possible to cook rice with better taste by preventing broken rice, leaving no bran residue, and preventing high-temperature rice regardless of the amount of whitening. The task is to do so.

[0011] The invention of claim 4 is to prevent the generation of crushed rice, to eliminate uneven rice and bran residue, and to prevent high-temperature rice irrespective of the amount of whitening, and to cook rice with better taste. The task is to be able to do this.

Another object of the present invention is to prevent rice grains from being crushed more surely in addition to the objects of the present invention.

According to a sixth aspect of the present invention, in addition to the objects of the first, second, third or fourth aspect, the rice grains are circulated vigorously, and the rice grains are brought into strong contact with the bran-removing basket, thereby improving the milling effect. As an issue.

A seventh object of the present invention is to improve the milling efficiency and to provide polished rice having a high degree of whitening in a short time in addition to the objects of the second or fourth aspect of the present invention.

An eighth object of the present invention is to provide, in addition to the objects of the third and fourth aspects of the present invention, a method of adjusting a pressing force in accordance with the amount of whitening to provide an optimum pressing force to a group of circulating brown rice.

[0016]

According to a first aspect of the present invention, there is provided a bran collecting container detachably provided in a container main body, and a bran collecting container is removed from the bran collecting container at intervals. A bran mesh basket is detachably provided, and a rotating shaft and a stirring blade made of an elongated plate horizontally rotating through the rotating shaft are provided in the bran removing basket, and the outer end width direction of the stirring blade is formed in a convex arc shape. And the peripheral surface of the stirring blade is formed in a convex arcuate rice sliding surface. In the claims of the present specification, the rice milling machine is intended to include both home rice mills and commercial rice mills.

Here, when the stirring blade is horizontally rotated through the rotating shaft, it hits the rice grains, but the width direction of the outer end of the stirring blade is convex and the peripheral surface is formed as a convex arc-shaped rice sliding surface. As a result, large external force does not concentrate locally on the rice grains, the load per unit is small, the rice grains are hard to break, such as cutting and tearing, and the brown rice grains rotate in the rotation direction of the stirring blade At the same time, it is circulated from the side surface of the basket to the rotating shaft by centrifugal force, and is polished by the friction between brown rice and the friction between brown rice and the basket.

According to a second aspect of the present invention, the bran collecting container is detachably provided in the container main body, and the bran removing basket is detachably provided in the bran collecting container at intervals. A stirring blade composed of a rotating shaft and an elongated plate horizontally rotating through the rotating shaft is provided in the basket, and the outer end width direction of the stirring blade is formed in a convex arc shape, and the peripheral surface of the stirring blade is formed in a convex arc shape. And a flow straightening cylinder which is formed on the sliding surface of the rice and separates a side surface of the basket from the bran and the rotating shaft is provided in the basket from the bran.

Here, in addition to the function of the first aspect, the rice grains circulating from the side surface of the bran-removing basket to the rotating shaft side are blocked by the flow regulating cylinder, so that they do not turn slightly as shown by the arrow in FIG. It circulates at a constant flow through the upper end of the cylinder, the inside of the cylinder, and the lower end, eliminating uneven polishing.

According to a third aspect of the present invention, the bran collecting container is detachably provided in the container main body, and the bran removing basket is removably provided in the bran collecting container at intervals. A stirring blade composed of a rotating shaft and an elongated plate horizontally rotating through the rotating shaft is provided in the basket, and the outer end width direction of the stirring blade is formed in a convex arc shape, and the peripheral surface of the stirring blade is formed in a convex arc shape. And a pressure plate for pressing the rice grains circulating in the basket.

If the pressing plate is positioned above the brown rice group, the circulating rice grains are agitated while lifting the pressing plate in addition to the function of the above-mentioned claim 1, and the pressure between the rice grains is increased by pressing the pressing plate. It becomes dense, the contact friction between brown rice and brown rice and bran basket increases, and the grinding accuracy improves.Moreover, by improving the grinding accuracy, it is possible to prolong the milling time and prevent the occurrence of empty friction. Rice can be prevented.

According to a fourth aspect of the present invention, the bran collecting container is detachably provided in the container main body, and the bran removing basket is detachably provided in the bran collecting container at intervals. A stirring blade composed of a rotating shaft and an elongated plate horizontally rotating through the rotating shaft is provided in the basket, and the outer end width direction of the stirring blade is formed in a convex arc shape, and the peripheral surface of the stirring blade is formed in a convex arc shape. A flow regulating cylinder formed on the sliding surface of the rice and separating the rotating shaft from the side surface of the rice bran basket is provided in the rice bran basket, and a pressurizing unit for pressing rice grains circulating in the rice bran basket is provided. It is characterized by having a pressure plate.

In this way, the external force applied to the rice grain by the outer end and the peripheral surface of the stirring blade per unit becomes smaller as compared with the conventional example, as described in the above-mentioned operation according to the first, second and third aspects of the present invention. The rice grains are hard to be crushed, and the circulation of the rice grains is regulated by the flow straightening tube and the flow is uniform, there is no uneven circulation and uneven milling. The frictional force increases, the grinding accuracy is improved, the whitening time can be reduced, and the generation of hot rice can be prevented.

Further, as in the invention of claim 5, it is preferable that the plate thickness of the stirring blade is larger than the major axis of the brown rice grain, and the radius of the convex arc-shaped rice sliding surface is greater than 1/2 of the major axis of the brown rice grain. In this way, as shown in FIG. 4, the external force applied to the rice grain by the peripheral surface of the stirring blade per unit becomes extremely small,
The rice grains can be surely slipped to prevent the generation of broken rice.

It is preferable that the stirring blade is a slender plate that is gradually inclined upward from the front side to the rear side in the rotation direction. By doing so, the rice grains are vigorously scraped up and circulated, and come into strong contact with the bran-removing basket, the frictional force is large, and the polishing accuracy is improved.

Further, the stirring blade is an elongated plate which is gradually inclined downward from the front side to the rear side in the rotational direction, and the stirring blade is located below the inside of the flow regulating cylinder. It is preferable that the bottom of the bran basket facing the stirring blade is formed on the plate surface.

In this manner, the rice grains are pressed against the bottom plate surface of the bran basket by the lower surface of the stirring blade, and the stirring blade receives the weight of the falling brown rice group in the straightening cylinder. The pressure increases, and the milling efficiency is further improved.

Further, it is preferable that the pressure plate is adjustable in weight as in the invention of claim 8. The smaller the amount of rice, the coarser the grain between the grains during circulation, and the greater the quantity, the denser the grain. Therefore, by adjusting the weight of the pressure plate in accordance with the amount of rice, for example, the weight of the pressure plate is increased when the amount is small and the weight is decreased when the amount is large.

[0029]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1 to 14 show a rice milling machine of the present invention or components thereof. These are examples applied to a home rice milling machine. First, the first embodiment is shown in FIGS. This will be described below. A plastic container body 1 is formed in a cylindrical shape with a bottom, a gap 10 and a shaft insertion hole 11 are formed in the center of the bottom, and a jetty 12 is provided around the upper surface.
Are provided with a plurality of rotation stopping holes 13, and a rotation shaft 15 of the electric motor M fixed to the gap 10 is inserted into the shaft insertion hole 11 to connect the end of the rotation shaft 15 to the toothed disk 16. If a suitable rotation speed can be obtained, the toothed disk 16 may be directly connected to the rotating shaft 15 of the electric motor M as in the present embodiment, or a reduction motor may be used instead of the electric motor M, or Needless to say, the rotating shaft 15 and the toothed disk 16 may be linked via a reduction gear.

A plastic bran collecting container 2 having a flange 20 formed at the opening end and a cylindrical portion 21 provided at the center of the bottom plate is provided so as to be detachable from the container main body 1, and the flange 20 is brought into contact with the inner upper surface 14. Pins 23, 23 projecting downward from 20 are fitted into the rotation stopping holes 13, 13, and the cylindrical portion 21 is extrapolated into the toothed disk 16.

The bran-removing basket 3 is formed of a metal, specifically, a stainless steel net. More specifically, the center of the bottom is formed of a disc 30 made of metal, for example, stainless steel.
A boss 31 is projected from the upper surface and a cylindrical portion 32 is projected from the lower surface of the disc 30 to fix the net bottom of the basket 3 to the peripheral surface of the disc 30. Specifically, it is fixed to a cylindrical mouth portion 33 made of stainless steel, a flange 34 is formed in the cylindrical mouth portion 33, and a plurality of pins 3 are provided on the lower surface of the flange 34.
5, 35 are protruded.

The plastic rotary shaft 4 is mounted on the toothed disk 44.
Concatenate. The rotating shaft 4 has a cross section of a regular hexagon and a lower end portion 42 of a circular cross section. Then, the rotary shaft 4 is passed through the boss 31 from inside the cylindrical portion 32 to thereby make the disk 30
Then, the lower end portion 42 is rotatably inserted into the boss 31, and the toothed disk 44 is housed in the cylindrical portion 32. Bran net basket 3
Are placed at concentric positions in the bran collecting container 2 at intervals, and the flange 34 is brought into contact with the
Each of the pins 35 is fitted into the pin insertion hole 24 provided in the cylindrical portion 32, the cylindrical portion 32 is externally fitted to the cylindrical portion 21, and the toothed disk 44 is engaged with the toothed disk 16. Each pin 2 to each rotation stop hole 13
The insertion of the pins 3 into the pin insertion holes 24 prevents the horizontal rotation of the bran collecting container 2 and the basket 3.

A large-diameter lower end portion 41 is formed in a headed roll 40 made of plastic, a gap 45 is formed in the large-diameter lower end portion 41, and a hexagonal cross-section is inserted into the headed roll 40 and communicates with the gap 45. A hole 43 is formed, and a pair of left and right elongated plates 53, 53 as the stirring blade 5 are fixed to the large-diameter portion 41 at the lower end as shown in FIGS. Each of the elongated plates 53 is formed in a convex arc shape in the outer end width direction a, specifically, in a semicircle having a radius of の of the plate width. Further, the inner end of the plate is fixed to the large-diameter lower end portion 41 by insert molding so as to be gradually inclined upward from the front side to the rear side in the rotation direction shown by the arrows in FIGS. Is larger than the major axis L1 of the brown rice grains, preferably the major axis L1 is about 5 mm for brown rice grains, and the thickness L2 is 6 mm to 15 mm.
mm, and the peripheral surface of each elongated plate 53, that is, the outer end surface 53a and both side surfaces 53b, 53b are formed into a convex-arc-shaped rice sliding surface 54 as shown in FIGS. Specifically, the rice sliding surface 54 is a semi-circular convex arc surface having a radius r1 larger than １ ／ (indicated by L3 in FIG. 4) of the major axis L1 of the brown rice grains, and preferably has a radius r1 of 3 mm to 7.0 mm. It is set to 5 mm. A fitting hole 43 of the same shape is formed in the rotating shaft 4 having a hexagonal cross section.
And the lower surface of the large-diameter lower end portion 41 contacts the upper surface of the disk 30. Here, the rotating shaft 4 does not run idle in the fitting hole 43, and the rotating shaft 4, the headed roller 40, and the stirring blades 5 cooperate.

Further, in the first embodiment, the fitting lid 6 is provided so as to be able to be fitted to and removed from the jetty 12 and further comprises a pressing plate 7 for pressing the rice grains circulating in the basket 3. The pressing plate 7 is made of a metal, specifically, stainless steel and formed in a mountain shape annular shape. As shown in FIG.
The weight is adjusted by using the pressurizing plate 7 which is composed of four types of joint use, two use one use, and one use one. The stainless steel pressure plate 7
It is preferable that the bottom surface is mirror-finished, so that the rice grains can slide smoothly and the rice grains can easily circulate, and the bottom surface of each pressing plate 7 is at least large enough to allow the circulating rice grains to collide. I just need.

FIG. 5 shows a pressing plate 7 according to the first embodiment.
This shows a state in which the modified example is used, in which three concentric grooves 71, 72, 73 are formed on the inclined surface of the pressing plate 7 and fitting rings 74, 75, 76 are fitted thereto. If the quantity of rice is one, the fitting rings 74 and 7
5 and 76;
In the case of the case, the fitting ring 76 is fitted in the corresponding concentric grooves 71, 72, 73, and in the case of the case of 4 cases, the weight is adjusted by not using the fitting ring. This is the same as the first embodiment, and the same parts are denoted by the same reference numerals, and the description thereof will not be repeated.

FIGS. 7 to 9 show a second embodiment, which is the same as the first embodiment except for a rectifying cylinder 8 to be described later. Therefore, the overlapping description will be omitted, and the differences will be described below.

When viewed from a plane, a circular metal, specifically, a stainless steel cylinder 80 is wound with the opening upper end 81 inside and the opening lower end 82 outside to form a rectifying cylinder 8 with each opening end being round. The lower ends 84 of the three equally-suspended metal, specifically stainless steel, suspension bands 83, 83, 83 are opened at the upper ends 8.
1 is fixed to the inner surface by welding. Each suspension band 83 has a horizontal portion 85 and a rising portion 8 in order from the lower end 84 upward.
6. The horizontal upper end 87 is formed by continuous bending.
The rectifying cylinder 8 is extrapolated to the headed roll 40 and each horizontal upper end portion 87 is suspended by abutting on the flange 34, and the rectifying cylinder 8 is fitted to the side surface of the bran basket 3 and the rotating shaft 4. The lower end 82 of the rectifying cylinder 8 is positioned above the stirring blades 5 at an interval, and separates from the headed roll 40.
The outer end of each agitating blade 5 extends outward from the rectifying cylinder 8, and furthermore, the jetty 12 is made thicker and thicker by the horizontal upper end 87, and the fitting lid 6 is fitted by the same size. The height of the peripheral plate 60 is increased.

FIG. 10 shows a state in which a modified example of the pressing plate 7 in the second embodiment is used. The structure is equivalent to that of the modified example of the pressing plate 7 in the first embodiment. The configuration of the portion is the same as that of the second embodiment, and the common portions are denoted by the same reference numerals, and redundant description is omitted.

FIGS. 11 to 13 show a third embodiment, which is equivalent in principle to the first and second embodiments, and the same parts are denoted by the same reference numerals to avoid redundant description. The description will be omitted, and the differences will be described below. In this embodiment, the length of the stirring blades 5 in the first and second embodiments is shortened, the diameter of the flow straightening cylinder 8 in the second embodiment is increased, and the lower end 82 of the opening is extended downward, so that each stirring blade 5 So that it is located below the inside of the rectifying cylinder 8,
Moreover, each stirring blade 5 is gradually inclined downward from the front side to the rear side in the rotational direction, and the disk 30 is made larger in diameter than in the first and second embodiments so as to face each stirring blade 5. It was done.

FIG. 14 shows a state in which a modified example of the pressing plate 7 in the third embodiment is used, which is the same as the modified example of the pressing plate 7 in the second embodiment, and other parts. Is the same as that of the third embodiment, and the same reference numerals are given to the common parts, and redundant description will be omitted.

Next, the usage in the embodiment of the present invention will be described.
The operation will be described. In the figure, virtual lines h1, h2, h3, h4
Indicates the topmost position when brown rice is put in one, two, three or four, respectively. A desired amount of brown rice is put in the bran-removing basket 3 and the first embodiment and its modifications. In the second embodiment, the pressing plate 7 is placed directly on the upper surface of the brown rice group. In the second and third embodiments and their modifications, the pressing plate 7 is placed on each horizontal portion 85 and the fitting lid 6 is closed. I do. In the case of the second and third embodiments and the modifications thereof, as shown by h4, when the uppermost surface position of the brown rice group exceeds the horizontal portion 85, the pressing plate 7
Is placed directly on top of the brown rice group.

Thereafter, when the rotating shaft 4 is rotated via the electric motor M, the headed roll 40 and the stirring blades 5, 5 cooperate, and the brown rice group is rotated in the horizontal direction by the respective stirring blades 5. In the first and second embodiments and their modifications, the brown rice group is scraped up because each stirring blade 5 is gradually inclined upward from the front side to the rear side in the rotation direction, and FIG. As shown by 7, it is vigorously blown by the centrifugal force to the side of the basket 3, and then lifts the pressure plate 7, descends to the headed roll 40, and circulates. This horizontal rotation and the friction between the brown rice and the friction between the brown rice and the bran basket 3 during the circulation, the rice is milled, and the bran enters the bran collection container 2 from the mesh of the bran basket 3.

Also, in the case of the third embodiment and this modification, since each stirring blade 5 is gradually inclined downward from the front side to the rear side in the rotation direction, the brown rice group is provided by each stirring blade 5. The rice grains between the inclined lower surface 53 'and the disk 30 are pressed by the inclined lower surface 53' (illustrated in FIG. 13) into the rice grains between the inclined lower surface 53 'and the disk 30 via the respective stirring blades 5 located in the rectifying cylinder 8. The weight of the descending brown rice group is high, the pressure is large, and the brown rice group is efficiently polished by the large frictional force here, and furthermore, it rotates in the horizontal direction, circulates in the direction of the arrow shown in FIG. 7 is lifted and polished by the friction between brown rice and the friction between the brown rice and the bran basket 3, and the bran enters the bran collection container 2 through the mesh of the bran basket 3. In any of the embodiments, it is preferable that the motor M can be rotated forward and reverse.
In the first and second embodiments and their modifications, the rice grains are milled between the lower surface of the stirring blade 5 and the disk 30 as in the third embodiment and this modification in the first and second embodiments and their modifications. In the third embodiment and this modification, conversely, the agitating blade 5 can perform the scraping action as in the first and second embodiments and these modifications. You can choose the law.

Here, in any of the embodiments, as shown in FIGS. 3, 4, 9 and 13, since the peripheral surface of each elongated plate 53 is a convex-arc-shaped rice sliding surface 54, the external force on the brown rice is concentrated. Rice grains are not easily crushed, and the outer end face 53a, both side faces 53b, 5
In addition to the rice sliding surface 54 of FIG.
As shown by 11 and 14, the outer end width direction a of each elongated plate 53 is a convex arc shape, so that the rice grains in contact with the portion can be slid better, are less likely to be crushed, and in any of the embodiments, Since the pressure plate 7 is provided, the pressure between the brown rice groups becomes dense due to the compression, the contact friction between the brown rice, the brown rice and the rice bran basket 3 is increased, the empty friction can be prevented, the polishing accuracy is improved, and thus the polishing time is improved. And the generation of hot rice can be prevented. A suitable pressing force can be applied by using the pressing plate 7 having a weight corresponding to the amount of brown rice, or by increasing or decreasing or not using the corresponding fitting ring. Is formed into a semicircle having a radius equal to 1/2 of the plate width, and the plate thickness L2 of each elongated plate 53 is formed.
Is larger than the major axis L1 of the brown rice grains, and if the radius r1 of the convex arc-shaped rice sliding surface 54 is greater than １ ／ of the major axis L1 of the brown rice grains, the rice grains hitting these portions are surely slid and crushed. There is no fear, and the major axis L1 of brown rice grains is 5 mm
For the front and rear brown rice groups, the outer end width direction a is set to 1 / one of the plate width.
An elongated plate 53 having a thickness of 7 mm and formed in a semicircle having a radius of 2
In addition, a semi-circular rice sliding surface 54 having a radius r1 of 3.5 mm was formed, and an experiment confirmed that no broken rice was generated at all.

Further, in the second and third embodiments and their modifications, the rectifying cylinder 8 is provided, so that the small circulation of the brown rice group is prevented, and the brown rice group is located at the upper end of the rectifying cylinder 8, in the cylinder, Circulates at a certain flow and a certain number of times through the lower end port,
Eliminating unevenness. It is needless to say that the rectifying cylinder 8 having a height at which the circulation by the flow is smoothly performed is used.

The pressing plate 7 may have another shape such as a donut shape, but is preferably a mountain-shaped ring. In this case, even if rice grains jump out onto the pressing plate 7, they slide down on the upper surface, and 7, it is convenient, and as in the second and third embodiments, the opening upper end 81 of the rectifying cylinder 8 is placed inside,
It is preferable to wind the lower end 82 of the opening outward, so that the rice grains can be smoothly circulated and the crushing of the rice grain at the upper and lower ends 81 and 82 of the openings can be prevented.

After the refining is completed, first, the pressure plate 7 and the rectifying cylinder 8 (in the case of the second and third embodiments) are taken out of the bran mesh basket 3, and then the bran mesh basket 3 is removed from the bran collecting container 2. The polished rice is removed from the bran basket 3, the bran collection container 2 is removed from the container body 1, and the bran that has entered the mesh of the bran basket 3 is removed from the bran container 2. In addition, as in the second and third embodiments, it is preferable that the rectifying cylinder 8 is detachably provided to the bran-removing net basket 3, so that the rectifying cylinder 8 is previously removed from the bran-removing net basket 3 as described above. By removing it, the polished rice can be taken out smoothly.

[0048]

According to the first aspect of the present invention,
Crushed rice is less likely to be produced, and polished rice having a uniform size can be obtained.

According to the invention of claim 2 of the present invention, it is possible to obtain polished rice which is hard to generate broken rice and has no risk of uneven polishing, and which is not uneven in size and degree of milling.

According to the third aspect of the present invention, broken rice is less likely to occur, and bran residue is less likely to occur, and the generation of hot rice can be prevented regardless of the amount of whitening.

According to the invention of claim 4 of the present invention, broken rice is hardly generated, and there is no possibility of uneven polishing and bran residue.
Moreover, the generation of hot rice can be prevented regardless of the amount of whitening.

According to the fifth aspect of the present invention, in addition to the effects of the first, second, third or fourth aspect, crushing of rice grains can be prevented more reliably.

According to the sixth aspect of the present invention, in addition to the effects of the first, second, third or fourth aspect, the rice grains are circulated vigorously to reduce the contact friction between the rice grains and the basket. Enlarged and good milling effect can be obtained.

According to the seventh aspect of the present invention, in addition to the effect of the second or fourth aspect, milling efficiency is improved, and it is possible to provide polished rice having a high degree of whitening in a short time.

According to the eighth aspect of the present invention, in addition to the effect of the third or fourth aspect, the pressing force is adjusted in accordance with the amount of whitening to give an optimum pressing force to the circulated brown rice group. be able to.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional front view showing a first embodiment of the present invention.

FIG. 2 is a plan view with a part cut away from the above.

FIG. 3 is an enlarged longitudinal side view of the stirring blade of the above.

FIG. 4 is a partially enlarged end view taken along line AA in each embodiment of the present invention.

FIG. 5 is a longitudinal sectional front view showing a state in which a modification of the pressing plate according to the first embodiment of the present invention is used.

FIG. 6 is a plan view of a modification of the pressure plate in the above and second and third embodiments.

FIG. 7 is a longitudinal sectional front view showing a second embodiment of the present invention.

FIG. 8 is a plan view in which a part of the above is cut away.

FIG. 9 is a longitudinal sectional side view in which main parts of the above are enlarged.

FIG. 10 is a longitudinal sectional front view showing a state in which a modification of the pressing plate according to the second embodiment of the present invention is used.

FIG. 11 is a longitudinal sectional front view showing a third embodiment of the present invention.

FIG. 12 is a plan view in which a part of the above is cut away.

FIG. 13 is a longitudinal sectional side view in which main parts of the above are enlarged.

FIG. 14 is a longitudinal sectional front view showing a state in which a modification of the pressing plate according to the third embodiment of the present invention is used.

FIG. 15 is a longitudinal sectional front view of a conventional example.

FIG. 16 is a plan view in which a part of the above is cut away.

FIG. 17 is an enlarged side view of the same stirring blade.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Container main body 2 Bran collection container 3 Bran net basket 4 Rotation axis 5 Stirrer blade 7 Pressure plate 8 Rectifier cylinder 53 Slender plate 54 Rice sliding surface a Outer end width direction

Claims (8)

[Claims] 1. A bran collecting container is removably provided in a container main body, and a bran removing basket is removably provided in the bran collecting container at intervals. A rotating shaft and the rotation are provided in the bran removing basket. Providing a stirring blade made of an elongated plate that rotates horizontally via a shaft, and forming the outer end width direction of the stirring blade in a convex arc shape, and forming the peripheral surface of the stirring blade in a convex arc-shaped rice sliding surface. Rice milling machine. 2. A bran collecting container is detachably provided in a container main body, and a bran removing basket is removably provided in the bran collecting container at intervals. Providing a stirring blade made of an elongated plate that horizontally rotates through a shaft, and also forming the outer end width direction of the stirring blade in a convex arc shape and forming the peripheral surface of the stirring blade in a convex arc-shaped rice sliding surface, A rice milling machine further comprising a rectifying cylinder for partitioning between the side surface of the basket and the rotating shaft in the basket. 3. A bran collecting container is removably provided in a container body, and a bran removing basket is removably provided in the bran collecting container at intervals. Providing a stirring blade made of an elongated plate that horizontally rotates through a shaft, and also forming the outer end width direction of the stirring blade in a convex arc shape and forming the peripheral surface of the stirring blade in a convex arc-shaped rice sliding surface, A rice mill further comprising a pressure plate for pressing rice grains circulating in the basket. 4. A bran collecting container is detachably provided in a container main body, and a bran removing basket is removably provided in the bran collecting container at intervals, and a rotating shaft and the rotation are provided in the removing bran basket. Providing a stirring blade made of an elongated plate that horizontally rotates through a shaft, and also forming the outer end width direction of the stirring blade in a convex arc shape and forming the peripheral surface of the stirring blade in a convex arc-shaped rice sliding surface, Further, a straightening cylinder for partitioning a side surface of the bran mesh basket and the rotation shaft is provided in the bran mesh basket, and a pressure plate for pressing rice grains circulating in the bran mesh basket is provided. Rice milling machine. 5. The method according to claim 1, wherein the thickness of the stirring blade is greater than the major axis of the brown rice grains, and the radius of the convex arcuate rice sliding surface is greater than １ ／ of the major axis of the brown rice grains. 4 rice milling machine. 6. The rice milling machine according to claim 1, wherein the stirring blade is a slender plate which is gradually inclined upward from the front side to the rear side in the rotation direction. 7. A stirrer in which a stirring blade is an elongated plate which is gradually inclined downward from a front side to a rear side in a rotation direction, and wherein the stirring blade is located below the inside of the flow regulating cylinder, and which is opposed to the stirring blade. The rice mill according to claim 2 or 4, wherein the bottom of the net basket is formed on a plate surface. 8. The rice mill according to claim 3, wherein the pressure plate is adjustable in weight.