JP2001137721A - Household rice-milling machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a household rice-milling machine preventing rice bran from entering a rice-milling machine main body part. SOLUTION: A cover plate 28 covering the gap 27 formed between an opening part 19 and a rotary drive part 20 is mounted on the rotary drive part 20. An upwardly turned endless projected part 19a is provided to the peripheral edge of the opening part 19 of a housing part 4 and an endless projected part 34 is formed to the undersurface of the cover plate 28 so as to provide a predetermined gap 35 with respect to the projected part 19a. One or more blade body 33 generating air streams by the rotation of the rotary drive part 20 is formed to the peripheral edge part of the cover plate 28.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a small household rice mill.

[0002]

2. Description of the Related Art For small household rice mills, the present inventors have disclosed, for example, Japanese Patent Application Nos.
No. -19197. Household rice mill 10
Reference numeral 0, as shown in FIG. 6, comprises a rice polishing machine main unit 101 and a rice polishing unit 118 provided in the rice polishing machine main unit 101.

[0003] The rice milling machine main body 101 has a concave receiving section 102 at an upper portion, and a driving motor 11 for driving a rotating shaft 106 to be described later is provided at a lower portion of the receiving section 102.
2 and components such as sensors. The drive motor 112 has an output shaft 113 facing upward, and a pulley 114 is mounted on the output shaft 113. The pulley 114 is connected to the first transmission member 111 via a power transmission belt 115. The accommodation section 102
An opening 109 is provided at the bottom of the first transmission member 1.
The upper part of 11 is loosely fitted above the opening 109. The rice-milling machine main unit 101 includes the storage unit 102.
A lid 116 that covers the upper part of the camera is detachably mounted.

The rice mill 118 is provided with a bran container 103 removably mounted in the accommodating portion 102 and a mesh portion 104 for allowing the bran to pass therethrough on the peripheral side, and is detachably mounted in the bran container 103. Substantially mortar-shaped net container 105 attached to
It is composed of A rotating shaft 106 is rotatably provided on the bottom of the mesh container 105, and a stirrer 107 is detachably mounted on the rotating shaft 106. The bottom of the bran container 103 is provided with a cylindrical tubular opening 108 whose bottom is opened at a predetermined height, and the bottom of the mesh container 105 is placed on the upper end of the tubular opening 108. In the cylindrical opening 108, a second transmission member 110 which is mounted on the lower end of the rotary shaft 106 is disposed.
10 is engaged with the second transmission member 111.

[0005] The household rice mill 100 constructed as described above.
When brown rice is put into the mesh container 105 and the rice polishing operation is started, the drive output of the drive motor 112 is transmitted to the second transmission member 111 via the power transmission belt 115, and the brown rice is connected to the second transmission member 111. The combined second transmission member 110 rotates, and with this rotation, the rotating shaft 106 and the stirring body 10
7 rotates. The brown rice is stirred by the rotation of the stirrer 107, and the bran of the brown rice is removed and refined by grain friction and contact with the mesh 104, while the removed bran is removed by the mesh 104. From the bran container 103 and accumulates in the bran container 103. When the rice polishing operation for a predetermined time is completed, after removing the lid 116,
The stirrer 107, the mesh container 105 and the bran container 103 are sequentially removed, and the polished rice is removed from the mesh container 105, while the bran is removed from the bran container 103.

[0006]

As described above, after the rice polishing operation is completed, the lid 116, the stirrer 107, and the mesh container 10 are removed.
5 and the bran container 103 are sequentially removed. When the bran container 103 is removed, the bran accumulated in the bran container 103 may fall from the cylindrical opening 108 into the housing portion 102. The falling bran falls not only on the bottom of the storage part 102 and the second transmission member 111 but also on a slight gap formed between the opening 109 and the second transmission member 111. For this reason, there has been a problem that the bran dropped into the gap enters the rice milling machine main body 101 through the gap and accumulates in the rice milling machine main body 101. Further, the bran that has fallen into the storage unit 102 is cleaned by wiping with a cloth or the like. However, if the rice cleaning operation is repeated without sufficient cleaning and the rice bran remains in the storage unit 102, the storage unit 102 The bran remaining in the rice milling machine main body 101 through the gap as described above due to vibration or the like.
There is a problem that the water enters the rice milling machine main body 101 and accumulates inside. If the bran accumulated in the rice milling machine main body 101 is left as it is, there is a concern that the components built in the rice milling machine main body 101 may be adversely affected. The part 101 had to be disassembled. The present invention has been made in view of the above problems,
It was a technical problem to provide a household rice polishing machine in which rice bran does not enter the rice polishing machine main body.

[0007]

According to a first aspect of the present invention, there is provided a household rice mill having a mesh container having a rotation driven portion at the center of the bottom, a mesh container capable of storing the mesh container from the top, and having an opening at the center of the bottom. Part, and engages with the rotation driven part,
A rice milling machine main unit having a driving unit having a rotation driving unit that is loosely fitted to the opening from below the housing unit; and a household rice mill including a rotation driving unit, Technical measures were taken to cover the gap formed between the opening and the rotation drive unit.

Therefore, in the mode in which the bran container is detachably mounted between the net container and the storage portion, when the bran container containing the bran is removed, the bran falls into the storage portion. Also, since the gap formed between the opening of the accommodating section and the rotary drive section is covered by the cover plate, the bran does not enter the rice milling machine main body.

According to a second aspect of the present invention, there is provided a household rice mill according to the first aspect, wherein an endless convex portion facing upward is provided on the periphery of the opening of the housing portion, and the lower surface of the cover plate is provided with the endless convex portion. Formed an endless convex portion fitted with a predetermined gap between the convex portion,
Taking the technical measures of that.

Therefore, a predetermined gap, that is, a gap that does not make contact with each other, is formed between the periphery of the opening of the housing and the lower surface of the cover plate. The degree of airtightness is improved. Therefore, rice bran does not enter the rice polishing machine main body through the gap formed between the opening and the rotation drive unit (first transmission member).

According to a third aspect of the present invention, there is provided a household rice mill according to the first or second aspect, wherein one or more blades for generating an air current by the rotation of the rotary drive unit are provided on the peripheral edge of the cover plate. Take the technical means that it was formed.

[0012] During the rice milling operation, even if there is bran at the bottom of the storage section, the rotation drive section (first transmission member) rotates,
The wings generate an air current. Therefore, since the bran is blown off by the airflow, the bran does not enter the rice milling unit through a gap formed between the opening and the rotation drive unit (first transmission member).

According to a fourth aspect of the present invention, there is provided a household rice mill according to any one of the first to third aspects, wherein a locking piece of a rotation drive unit that engages with the rotation follower is inserted into the cover plate. The household rice mill according to any one of claims 1 to 3, further comprising a fitting hole for allowing the rice to be milled.

Therefore, the cover plate is mounted by fitting the locking piece of the rotary drive unit (first transmission member) into the fitting opening, so that the cover plate is easily mounted and the cover plate is prevented from rotating. Therefore, the cover plate can be reliably and integrally rotated with the rotation drive unit.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of a household rice mill according to the present invention will be described with reference to FIGS. FIG. 1 is a side sectional view showing the overall configuration of a household rice mill. FIG. 2 is an enlarged side sectional view in which main parts are enlarged. FIG. 3 is a perspective view showing the first transmission member and the cover plate. FIG. 4 is a plan view of the cover plate, and the arrows shown in the figure indicate the rotation direction of the first transmission member 20. FIG.
It is sectional drawing of AA in FIG.

The household rice mill 1 of the present invention comprises a rice mill body 2b and a rice mill 2a. The rice-milling machine main body 2b is provided with a cylindrical and concave storage portion 4 for storing a bran container and a net container to be described later, and a driving means 40 or Components such as sensors are built in. The driving means 40 includes the driving motor 15, the driving motor 15, the power transmission belt 26, the first transmission member 20 (rotation driving unit), and the bearing 24. The drive motor 15 is disposed with an output shaft 16 facing upward, and a pulley 17 is mounted on the output shaft 16. An opening 19 is formed at the center of the bottom 4 a of the housing 4.
A ring-shaped convex portion 19a having a convex cross section is formed on the peripheral edge of. In the opening 19, there is provided a first transmission member 20 (rotation drive unit) that engages with a second transmission member 14 (rotation driven unit) described later and transmits the power of the drive motor 15 to the rotation shaft 8. ing. The first transmission member 20 includes a pulley portion 2 connected to the pulley 17 via a power transmission belt 26.
1, a plurality of locking pieces 22 radially arranged from the center of the upper surface of the pulley portion 21, a ring-shaped convex portion 25 having a convex cross section provided on the outer periphery of the locking piece 22, It is formed from a vertically elongated shaft 23 formed at the center of the lower surface. The first transmission member 20 formed in this manner allows the locking piece 22 to face above the opening 19 and prevents the inner circumference of the projection 19 a from contacting the outer circumference of the projection 25. Gap 2
7, the shaft 23 is supported by a bearing 24,
It is rotatably arranged.

The rice milling section 2a is provided with a bran container 5 removably mounted in the accommodating section 4 and a mesh portion 7 for allowing the bran to pass therethrough on the peripheral side, and is detachably mounted in the bran container 5. And a substantially mortar-shaped net container 6 attached to the main body. On the bottom 6a of the mesh container 6, a rotating shaft 8 which is rotatably provided upright is formed. The rotating shaft 8 has a sliding cylinder 9 inserted and provided at a lower portion thereof, and further inserted into a cylindrical portion 9a which is erected at a predetermined height at the center of the bottom portion 6a. The rotating shaft 8
, A stirrer 10 is detachably fitted. The rotating shaft 8 has an upper part formed in an octagonal horizontal cross section, and the stirring body 10 has a cylindrical portion 1 fitted on the upper part of the rotating shaft 8.
0a and a plurality of agitating blades 10b extending radially around the rotating shaft 8 below the cylindrical portion 10a.
In the present embodiment, the stirring blades 10b are provided one by one in the facing direction about the rotation shaft 8.

At the center of the bottom 5a of the bran container 5, a cylindrical opening 12 having an open bottom surface is formed. The cylindrical opening 12 has a larger diameter than the upper part from the middle to the lower part. The bottom portion 6a is placed on the cylindrical opening 12 with the ring portion 11 provided on the lower surface of the bottom portion 6a fitted to the outer periphery of the upper end of the cylindrical opening 12. The space formed by the outer periphery of the mesh container 6 and the inner periphery of the bran container 5 is:
It becomes the bran accommodating part 13. At the lower end of the rotary shaft 8, a second transmission member 14 (rotation) formed by a disk portion 14a pivotally mounted on the lower end and a plurality of locking pieces 14b provided radially from the center of the lower surface of the disk portion 14a. The second transmission member 14 is disposed in the cylindrical opening 12.

Next, the features of the present invention will be described. A cover plate 28 that covers the gap 27 is mounted on the upper surface of the first transmission member 20 provided in the opening 19. Cover plate 28
Are formed on the outer periphery of the disk flat surface 32, a rising portion 30 in contact with the inner periphery of the projection 25, and a flange (collar) formed in contact with the upper surface of the projection 25 and formed on the outer periphery of the rising portion 30. Is provided. The flange portion 31 is formed so as to cover the gap 27 and the convex portion 19a. The disc flat surface 32 and the rising portion 30 are provided with fitting holes 29 through which the locking pieces 22 are fitted. In addition, an outer portion of the lower surface of the flange 31 is provided with the rotating shaft 8.
A plurality of blades 33 are provided at appropriate intervals inclining in a direction opposite to the rotational direction of the blade 33. Further, a ring-shaped convex portion 34 is provided on the inner periphery of the wing body 33. The cover plate 28 formed in this manner allows each of the locking projections 22 to fit through the corresponding fitting opening 29 and is fixed to the upper surface of the pulley 21 by a fixing member such as a screw. Since the fitting hole 29 is fitted and fitted into the locking piece 22 of the first transmission member 20, the cover plate 28 is easily mounted, and the cover plate 28 is prevented from rotating. The transmission member 20 can be surely and integrally rotated. Further, the convex portion 34 and the convex portion 19a are fitted with a predetermined space 35 that does not make contact with each other.
The gap 35 is preferably made as small as possible in consideration of manufacturing errors and assembly errors of the components such as the housing portion 4 and the cover plate 28.

As described above, the first transmission member 20 and the second transmission member 14 having the cover plate 28 mounted on the upper surface thereof engage the locking pieces 22 and 14b with each other to form the drive motor. 15 is transmitted to the rotating shaft 8. At the lower end of the shaft 23 mounted on the bearing 24,
A plate 39 that rotates with the shaft 23 is fixed, and a rotation sensor 36 that detects rotation of the plate 39 is provided near the plate 39. An operation surface portion 37 is provided on a peripheral surface of the rice polishing machine main body 2b, and an operation base 38 is provided in the rice polishing machine main body 2b of the operation surface portion 37.

Next, the operation of the household rice mill 1 will be described. When the brown rice is put into the net container 6 and the lid 3 is closed to start the rice polishing operation, the driving output of the driving motor 15 is transmitted to the first transmission member 20 via the output shaft 16, the pulley 17 and the power transmission belt 26. The power is transmitted to the pulley portion 21, and the power is transmitted to the second transmission member 14 via the locking piece 22,
The second transmission member 14 rotates. With this rotation, the rotation shaft 8 and the stirring body 10 also rotate. The brown rice is stirred by the rotation of the stirrer 10, and the bran of the brown rice is removed and refined by grain friction and contact with the mesh portion 7, while the removed bran is removed by the mesh portion 7. From the bran container 5 and accumulates in the bran container 13. When the milling operation for a predetermined time is completed, the lid 3 is removed, the stirring body 10, the net container 6, and the bran container 5 are sequentially removed, and the milled rice is removed from the net container 6, while
The bran is taken out of the bran container 5.

A description will now be given of a feature of the present invention, in which the rice polishing operation is performed in a state where the bran remains on the bottom portion 4a of the housing part 4 due to insufficient cleaning. When the rice polishing operation is started, the cover plate 28 rotates together with the first transmission member 20, and this rotation causes the blades 33 to move the cover plate 28.
The airflow is directed outward from the outer edge of the opening, that is, in a direction away from the opening 19. The bran remaining on the bottom 4a of the storage section 4 due to this airflow is blown outward, so that the bran does not approach the gap 35. Therefore, even if the bottom portion 4a of the housing portion 4 shakes due to vibration or the like, the bran does not enter the rice milling machine main body 2b through the opening 19, and the bran accumulates in the rice milling machine main body 2b. There is no adverse effect on parts such as the drive motor 15, operation board 38 and rotation sensor 36 built in the lower part of the rice milling machine main body 2, and the bran accumulated by disassembling the rice milling machine main body 2b is accumulated. Need not be removed. Further, by the formation of the protrusions 34 and the protrusions 19a, a gap 35 between the lower surface of the cover plate 28 and the outer portion of the periphery of the opening 19 in the bottom 4a of the housing portion 4 is formed so as not to contact each other. Is formed, the degree of sealing between the housing portion 4 and the rice milling machine main body 2b is improved. Therefore, since the gap 35 hinders the passage of the bran, it is possible to more reliably prevent the bran from entering the rice milling machine main body 2b.

Also, as shown in FIG.
Fan 1 for blowing air to cool drive motor 15
In the mode in which the air blower 8 is attached to the output shaft 16, an air flow from the inside of the housing section 4 to the inside of the rice milling machine main body 2 b is generated in the gap 27 with the blowing action by the rotation of the blower blade 18. In addition, there is a concern that the rice bran in the accommodating portion 4 easily enters the rice polishing machine main body 2b together with the air. However, as described in the operation of the present invention,
Since the bran is blown off by an air current flowing outward from the outer periphery of the cover plate 28 by the blades 33, the bran does not approach the opening 19, and the bran does not enter the rice polishing machine main body 2b. Therefore, in such a form, the present invention is an effective solution.

In the above embodiment, the bran container 5 is housed in the housing portion 4. However, the bran container 5 is not provided, and the mesh container 6 is directly housed in the housing portion 4. But it works. In other words, in this case, the bran removed from the brown rice accumulates on the bottom of the housing portion 4, and the airflow from the outer periphery of the cover plate 28 by each wing body 33, which is the function of the present invention, is directed outward. As a result, the bran is blown off, so that the bran does not approach the opening 19 and the bran does not enter the rice milling machine main body 2b.

Finally, in the above embodiment, the blade 3
3 is provided on the lower surface of the cover plate 28,
The position where 3 is provided may be provided on the upper surface of the cover plate 28, or may be provided on the periphery of the cover plate 28. Further, the number of the wings 33 may be one, but a plurality of wings 33 are preferably provided.

[0026]

According to the present invention, in the embodiment provided with the bran container detachably mounted between the net container and the housing,
When the bran container containing bran therein is removed, even if the bran falls into the storage section, the gap formed between the opening of the storage section and the rotary drive section is covered by the cover plate. Therefore, the rice bran does not enter the rice milling machine body.

Since a predetermined gap is formed between the periphery of the opening of the housing and the lower surface of the cover plate, that is, a gap that does not make contact with each other, a gap between the housing and the rice milling machine main body is formed. The degree of sealing is improved. Therefore, rice bran does not enter the rice milling machine main body through the gap formed between the opening of the storage section and the rotation drive section.

Further, during the rice polishing operation, even if there is bran at the bottom of the storage unit, the blades generate an air current with the rotation of the rotary drive unit. Therefore, since the bran is blown off by the airflow, the bran does not enter the rice milling machine main body through the gap formed between the opening of the storage section and the rotary drive section.

Further, since the cover plate is mounted by fitting the locking piece of the rotary drive unit into the fitting opening, the cover plate is easily mounted, and the cover plate is prevented from rotating. It can be reliably rotated integrally with the drive unit.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing an overall configuration of a household rice mill according to an embodiment of the present invention.

FIG. 2 is an enlarged side sectional view showing a main part of the embodiment in an enlarged manner.

FIG. 3 is a perspective view showing a first transmission member and a cover plate.

FIG. 4 is a plan view of a cover plate.

FIG. 5 is a sectional view taken along line AA in FIG.

FIG. 6 is a side sectional view showing the entire configuration of a conventional household rice mill.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 home rice mill 2a rice mill 2b rice mill main body 3 lid 4 container 4a bottom 4b peripheral side 5 rice bran container 5a bottom 6 net container 6a bottom 7 net 8 rotating shaft 9 sliding cylinder 9a cylinder 10 stirrer 10a Cylindrical part 10b Stirring blade 11 Ring part 12 Cylindrical opening part 13 Bran accommodating part 14 Second transmission member (rotary driven part) 14a Disk part 14b Locking piece 15 Drive motor 16 Output shaft 17 Pulley 18 Blower blade 19 Opening 19a Convex Part 20 First transmission member (rotation drive part) 21 Pulley part 22 Locking piece 23 Shaft 24 Bearing 25 Convex part 26 Drive transmission belt 27 Gap 28 Cover plate 29 Fitting port 30 Rising part 31 Flange part 32 Disk plane 33 Blade body 34 convex part 35 gap 36 rotation sensor 37 operation surface part 38 operation base 39 plate 40 driving means 100 household rice mill 101 rice mill main body 102 Housing 103 Bran container 104 Mesh portion 105 Mesh container 106 Rotating shaft 107 Stirrer 108 Cylindrical opening 109 Opening 110 Second transmission member 111 First transmission member 112 Drive motor 113 Output shaft 114 Pulley 115 Power transmission belt 116 Cover 118 Rice milling department

Claims (4)

[Claims] A mesh container having a rotation driven portion at the center of a bottom portion; a storage portion having an opening at a center portion of the bottom portion capable of storing the mesh container from above, and engaging with the rotation driven portion; A rice mill main unit having a drive unit having a rotation drive unit that is loosely fitted to the opening from below the housing unit; and a household rice mill having a rotation drive unit. A household rice mill comprising a cover plate for covering a gap formed between an opening and a rotary drive unit. 2. An endless upwardly-facing projection is provided on the periphery of the opening of the housing, and an endless fitting is provided on the lower surface of the cover plate with a predetermined gap between the projection and the projection. The household rice mill according to claim 1, wherein the shape of the convex portion is formed. 3. The rice mill for domestic use according to claim 1, wherein one or more blades for generating an airflow by rotation of said rotary drive unit are formed on a peripheral portion of said cover plate. 4. The household according to claim 1, wherein said cover plate is provided with a fitting hole through which a locking piece of a rotation drive unit engaged with said rotation follower unit is fitted. Rice milling machine.