JP6821428B2 - Rice milling machine - Google Patents

Rice milling machine Download PDF

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JP6821428B2
JP6821428B2 JP2016254589A JP2016254589A JP6821428B2 JP 6821428 B2 JP6821428 B2 JP 6821428B2 JP 2016254589 A JP2016254589 A JP 2016254589A JP 2016254589 A JP2016254589 A JP 2016254589A JP 6821428 B2 JP6821428 B2 JP 6821428B2
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rice milling
container
rice
bran
bottom cover
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JP2018103136A (en
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智 市川
智 市川
真吾 有井
真吾 有井
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MK Seiko Co Ltd
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Description

本発明は、家庭で玄米を搗精する精米機に関するものであり、特に、玄米を対流させて精米を行う方式の精米機に関する。 The present invention relates to a rice milling machine for milling brown rice at home, and more particularly to a rice milling machine for milling rice by convection of brown rice.

玄米を攪拌し対流させて精米を行う方式の精米機として、特許文献1などに示される装置が知られている。この装置は、玄米が投入される金属製網状材の精米容器と、この精米容器を内側に収容する糠容器と、精米容器の底部に設けられる精米羽根と、糠容器の上面に取り付けられる蓋体とを備え、精米羽根を回転させることで精米容器内で玄米を対流させ、米同士もしくは米と精米容器内面との摩擦により玄米の糠層を剥離するものである。 As a rice milling machine of a type in which brown rice is agitated and convected to perform rice milling, an apparatus shown in Patent Document 1 and the like is known. This device includes a rice milling container made of a metal mesh material into which brown rice is charged, a bran container that houses the rice milling container inside, a rice milling blade provided at the bottom of the rice milling container, and a lid attached to the upper surface of the bran container. By rotating the rice milling blades, the brown rice is convected in the rice milling container, and the bran layer of the brown rice is peeled off by friction between the rice or between the rice and the inner surface of the rice milling container.

このような対流式精米機においては、精米動作中の安全を図るため、糠容器の上面に蓋体が取り付けられて初めて装置の動作開始スイッチが機能する安全対策が施されている。精米動作中は精米羽根の回転が伴うことから、回転する精米羽根や対流する玄米を露出させないようにする配慮である。そのため、糠容器の上部付近には、蓋体を固定するロック機構を兼ねて、蓋体が取り付けられたことを検出する検出手段が設けられている。 In such a convection type rice milling machine, in order to ensure safety during rice milling operation, safety measures are taken so that the operation start switch of the device functions only after the lid is attached to the upper surface of the bran container. Since the rice milling blades rotate during the rice milling operation, care should be taken not to expose the rotating rice milling blades and convected brown rice. Therefore, near the upper part of the bran container, a detection means for detecting that the lid is attached is provided, which also serves as a lock mechanism for fixing the lid.

特許文献1に開示される装置では、内側に精米容器を収容した糠容器を精米機本体に装着したときに、糠容器と横並びとなる形で精米機本体内にモータが配置されており、そのモータを収容している精米機本体のモータ収容部が糠容器に取り付けられた蓋体とほぼ同じ高さ位置となる形状を呈している。そして、精米機本体の上部には、蓋体を固定するロック機構部が具備されており、糠容器を覆う蓋体をそのロック機構部に固定するようにしている。さらに、蓋体を精米機本体側のロック機構部に固定すると同時にロック機構部に押圧センサーを備え、蓋体を固定して押圧センサーに当接することによって蓋体が取り付けられたものとして判断を行っている。 In the apparatus disclosed in Patent Document 1, when a bran container containing a rice milling container is attached to the rice milling machine main body, a motor is arranged in the rice milling machine main body so as to be side by side with the bran container. The motor housing portion of the rice milling machine that houses the motor has a shape that is approximately the same height as the lid attached to the bran container. A lock mechanism for fixing the lid is provided on the upper part of the rice milling machine body, and the lid covering the bran container is fixed to the lock mechanism. Furthermore, the lid is fixed to the lock mechanism on the rice milling machine body side, and at the same time, the lock mechanism is equipped with a pressing sensor. By fixing the lid and contacting the pressing sensor, it is determined that the lid is attached. ing.

このように従来の装置では、糠容器の上部に取り付けられた蓋体の固定と取り付け有無の検出を精米機の上部において行っており、精米機本体における上部構造の複雑化を招いていた。また、精米機本体の少なくとも一部が糠容器に被せた蓋の高さ位置まで達する形状となっており、モータを糠容器の側方に配置してそれを本体ケーシングで覆う構造とすることにより、モータを収容するという目的と精米機本体を立ち上げ形状とする目的との両立を図っていた。そのため、精米機本体が大型化していた。 As described above, in the conventional apparatus, the lid attached to the upper part of the bran container is fixed and the presence / absence of attachment is detected at the upper part of the rice milling machine, which causes the superstructure of the rice milling machine body to become complicated. In addition, at least a part of the rice milling machine body has a shape that reaches the height position of the lid that covers the rice bran container, and by arranging the motor on the side of the rice bran container and covering it with the body casing. , The purpose of accommodating the motor and the purpose of making the rice milling machine main body a start-up shape were compatible. Therefore, the rice milling machine itself has become large.

特開2000−126625号公報Japanese Unexamined Patent Publication No. 2000-126625

本発明は上記の様な問題点に鑑みてなされたものであり、その目的とするところは、精米機本体の上部付近における構造を簡素化し、精米動作時に回転部を露出させないようにする安全対策は十分に施しながら、精米機全体としての大きさを小型化した装置を提供することにある。 The present invention has been made in view of the above problems, and an object of the present invention is to simplify the structure near the upper part of the rice milling machine body and to prevent the rotating part from being exposed during the rice milling operation. Is to provide a device that reduces the size of the rice milling machine as a whole while giving sufficient treatment.

(1)上記の目的を達成するために本発明は、下面に開口する有天円筒形状をなし規定量の米を投入する精米容器と、下面に開口する有天円筒形状をなし前記精米容器の全体を覆う糠容器と、前記精米容器の下面開口及び前記糠容器の下面開口を塞ぐ底部カバー体と、前記底部カバー体に垂直に設けられる回転軸と、前記回転軸に設けられる精米羽根と、前記回転軸を回転駆動するモータとを備え、前記底部カバー体は、前記精米容器の下面開口を塞ぎながら前記糠容器の下面開口を塞いで前記精米容器と前記糠容器とを一体に固定し、前記精米容器を内包する前記糠容器が精米機本体の外部に対して露出していることを特徴とする精米機を提案する。 (1) In order to achieve the above object, the present invention has a rice milling container having a celestial cylindrical shape that opens on the lower surface and a specified amount of rice to be charged, and a celestial cylindrical shape that opens on the lower surface. A rice bran container that covers the whole, a bottom cover body that closes the lower surface opening of the rice milling container and the lower surface opening of the rice bran container, a rotation shaft provided perpendicular to the bottom cover body, and rice milling blades provided on the rotation shaft. The bottom cover body includes a motor for rotationally driving the rotation shaft, and closes the lower surface opening of the rice bran container while closing the lower surface opening of the rice milling container to integrally fix the rice milling container and the bran container. We propose a rice milling machine characterized in that the bran container containing the rice milling container is exposed to the outside of the rice milling machine main body.

(2)また、上面及び下面に開口する円筒形状をなし規定量の米を投入する精米容器と、前記精米容器の下面開口を塞ぐ底部カバー体と、前記底部カバー体に垂直に設けられる回転軸と、前記回転軸に設けられる精米羽根と、下面に開口する有天円筒形状をなしその天部が前記精米容器の上面と当接し且つ精米容器の全体を覆う糠容器と、前記回転軸を回転駆動するモータとを備え、前記糠容器が精米機本体の外部に対して露出していることを特徴とする精米機を提案する。 (2) Further, a rice milling container having a cylindrical shape that opens on the upper surface and the lower surface and for charging a specified amount of rice, a bottom cover body that closes the lower surface opening of the rice milling container, and a rotation shaft provided perpendicular to the bottom cover body. The rice milling blades provided on the rotating shaft, the bran container having a celestial cylindrical shape opening on the lower surface, the top of which abuts on the upper surface of the rice milling container and covers the entire rice milling container, and the rotating shaft are rotated. We propose a rice milling machine equipped with a driving motor and characterized in that the bran container is exposed to the outside of the rice milling machine main body.

(3)上記提案の精米機は、糠容器が透明材料で構成されていることが望ましい。 (3) In the rice milling machine proposed above, it is desirable that the bran container is made of a transparent material.

本発明では、精米容器と糠容器とがそれぞれ下面に開口する有天円筒形状に形成されており、糠容器の内側に精米容器を収め、一つの同じ底部カバー体に糠容器の下面開口と精米容器の下面開口とを固定して一体的に組み合わせている。そして、精米容器の中に規定量の米を投入した状態で組み合わせた一体の構成体を精米機本体に対して底部カバー体を下側にして装着し、モータの回転駆動力を底部カバー体に備えた回転軸を介して精米羽根に伝達して精米動作を行うようにしている。このように構成することにより、糠容器の上部には蓋体が存在せず、これまで上部の蓋体を通じて行っていた精米容器内への米の投入は、本発明では底部カバー体を通じて行う。したがって、精米機本体の上部に必要としていた糠容器と蓋体との固定に関する構造、及び蓋体の取り付け有無に関する検出構造を不要にすることができ、精米機本体における上部付近の構造を簡略化することができる。また、精米機本体の形状を糠容器の上部まで立ち上げる必要がないことから、精米機本体を構成する部品や機器のレイアウトに関して自由度が高まり、ひいては精米機全体を小型化することができる。また、糠容器を透明材料で構成することにより、精米動作中に米が除糠されていく様子を確認することができる。 In the present invention, the rice milling container and the bran container are each formed in a celestial cylindrical shape that opens on the lower surface, the rice milling container is housed inside the bran container, and the lower surface opening of the bran container and the rice milling are provided in one same bottom cover body. The opening on the bottom surface of the container is fixed and integrally combined. Then, an integrated structure in which a specified amount of rice is put into the rice milling container is attached to the rice milling machine body with the bottom cover body facing down, and the rotational driving force of the motor is applied to the bottom cover body. It is transmitted to the rice milling blades via the provided rotating shaft to perform the rice milling operation. With this configuration, there is no lid on the upper part of the bran container, and rice is put into the rice milling container, which has been performed through the upper lid, through the bottom cover in the present invention. Therefore, the structure for fixing the bran container and the lid, which was required for the upper part of the rice milling machine body, and the detection structure for whether or not the lid is attached can be eliminated, and the structure near the upper part of the rice milling machine body is simplified. can do. In addition, since it is not necessary to raise the shape of the rice milling machine body to the upper part of the rice bran container, the degree of freedom in the layout of the parts and devices constituting the rice milling machine body is increased, and the rice milling machine as a whole can be miniaturized. Further, by forming the bran container with a transparent material, it is possible to confirm how the rice is being removed during the rice milling operation.

本発明第1実施例に係る精米機の全体構成を示す説明図である。It is explanatory drawing which shows the whole structure of the rice milling machine which concerns on 1st Example of this invention. 本発明第1実施例に係る精米機の構成分解図である。It is a structural exploded view of the rice milling machine which concerns on 1st Example of this invention. 本発明第1実施例に係る精米機の組立方法を示す説明図である。It is explanatory drawing which shows the assembly method of the rice milling machine which concerns on 1st Example of this invention. 米量/精米度別の精米時間を示す説明図である。It is explanatory drawing which shows the rice milling time by the rice amount / rice milling degree. 本発明第2実施例に係る精米機の全体構成を示す説明図である。It is explanatory drawing which shows the whole structure of the rice milling machine which concerns on 2nd Example of this invention.

<実施例1>
以下、本発明の好適な実施形態について図面を参照しながら説明する。図1は本発明実施例に係る精米機の全体構成を示す説明図であり、図2は精米機の構成を分解した説明図である。
1は本体ケースで、その上端から一段下がった低い位置に天板2を備えており、本体内側にモータ室3を形成している。天板2の上面には、本体ケースの外側面が天板2の周縁部を周壁状に立ち上がって取り囲んでおり、盆状の載置部4が形成されている。天板2のモータ室3に臨む面にはボス5を介してモータ6が設けられている。モータ6の回転軸7は、天板2の中心部に形成された膨出部8を貫通して載置部4側に突出しており、その上端に下カップリング9を設けている。
<Example 1>
Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory diagram showing the overall configuration of the rice milling machine according to the embodiment of the present invention, and FIG. 2 is an explanatory diagram showing the configuration of the rice milling machine in an exploded manner.
Reference numeral 1 denotes a main body case, which is provided with a top plate 2 at a lower position one step lower than the upper end thereof, and forms a motor chamber 3 inside the main body. On the upper surface of the top plate 2, the outer surface of the main body case rises and surrounds the peripheral edge of the top plate 2 in the shape of a peripheral wall, and a tray-shaped mounting portion 4 is formed. A motor 6 is provided on the surface of the top plate 2 facing the motor chamber 3 via a boss 5. The rotating shaft 7 of the motor 6 penetrates the bulging portion 8 formed in the central portion of the top plate 2 and projects toward the mounting portion 4, and the lower coupling 9 is provided at the upper end thereof.

10は後述する糠容器および精米容器の下面開口を塞ぐ底部カバー体で、その中心部には回転軸11が貫通され、この回転軸11の上端には精米羽根12が取り付けられ、下端には下カップリング9と連結する上カップリング13が取り付けられている。そして、底部カバー体10の外底面には、天板2の膨出部8に外嵌する取付筒部10−2が形成されており、取付筒部10−2と膨出部8とが組み合わさることで上カップリング13と下カップリング9とが連結し、モータ6の回転駆動力を精米羽根12に伝達するようにしている。また、この底部カバー体10の外縁には水平方向に突出する凸部10−1が設けられている。 Reference numeral 10 denotes a bottom cover body that closes the lower opening of the bran container and the rice milling container, which will be described later. A rotating shaft 11 is penetrated through the center of the bottom cover body, and a rice milling blade 12 is attached to the upper end of the rotating shaft 11 and a lower portion at the lower end. An upper coupling 13 that connects to the coupling 9 is attached. Then, on the outer bottom surface of the bottom cover body 10, a mounting cylinder portion 10-2 that is externally fitted to the bulging portion 8 of the top plate 2 is formed, and the mounting cylinder portion 10-2 and the bulging portion 8 are combined. As a result, the upper coupling 13 and the lower coupling 9 are connected so that the rotational driving force of the motor 6 is transmitted to the rice milling blade 12. Further, a convex portion 10-1 projecting in the horizontal direction is provided on the outer edge of the bottom cover body 10.

14は精米容器で、米粒より小さな網目を持つ金属製網状材もしくは目抜き加工されたパンチングプレートから形成されている。この精米容器は14は、下面が開口し、上面が閉塞された有天円筒形状をなしており、その下面開口14−1を底部カバー膨出部10−3に嵌着可能な構造となっている。精米容器14の下面開口14−1を底部カバー膨出部10−3に嵌着することで下面開口14−1が塞がれ、精米容器14の内部が閉じた空間となって精米処理動作を行う空間が形成される。 Reference numeral 14 denotes a rice milling container, which is formed of a metal mesh material having a mesh smaller than that of rice grains or a punching plate that has been perforated. The rice milling container 14 has a celestial cylindrical shape with an open lower surface and a closed upper surface, and has a structure in which the lower surface opening 14-1 can be fitted to the bottom cover bulging portion 10-3. There is. By fitting the lower surface opening 14-1 of the rice milling container 14 to the bottom cover bulging portion 10-3, the lower surface opening 14-1 is closed, and the inside of the rice milling container 14 becomes a closed space for rice milling operation. A space to do is formed.

15は糠容器で、透明材料もしくは半透明材料からなり、下面が開口し、上面が閉塞された有天円筒形状をなしている。糠容器15の下面開口15−1はその縁部内周にねじ山15−3が設けられており、底部カバー体10の底面に環状に設けられた螺着部10−4に着脱自在に螺着可能な構造となっている。そして、螺着したときに、糠容器15の外縁に設けられた凸部15−2が底部カバー体10に設けられている凸部10−1と重なり合い、凸部15−1の端部と凸部15−2の端部とが面一となるように構成されている。糠容器15の内側に精米容器14を収めた状態で糠容器15を螺着部10−4に螺着することで下面開口15−1が塞がれ、精米容器14と糠容器15と底部カバー体10とが一体となって組み合わされる。このようにして組み合わされた一体の構成体は、本体ケース1側に備えられる載置部4の上縁部内側に設けられた溝部16に、重なり合った状態の凸部10−1と凸部15−2とが係合可能な構造となっており、係合することで一体の構成体を載置部4に固定可能にしている。そして、特に図示しないが、重なり合った状態の凸部10−1と凸部15−2とが載置部4の溝部16に対して正規位置に係合した場合にスイッチング動作が行われる安全スイッチを備えており、この安全スイッチがON状態となった場合に、精米容器14と糠容器15と底部カバー体10とが組み合わされた一体構成体が本体ケース1に正確に取り付けられていると判断し、モータ6の起動を可能にする回路構成となっている。 Reference numeral 15 denotes a bran container, which is made of a transparent material or a translucent material, and has a celestial cylindrical shape with an open lower surface and a closed upper surface. The lower surface opening 15-1 of the bran container 15 is provided with a thread 15-3 on the inner circumference of the edge thereof, and is detachably screwed to a screwing portion 10-4 provided in an annular shape on the bottom surface of the bottom cover body 10. It has a possible structure. Then, when screwed, the convex portion 15-2 provided on the outer edge of the bran container 15 overlaps with the convex portion 10-1 provided on the bottom cover body 10, and is convex with the end portion of the convex portion 15-1. It is configured so that the ends of the portions 15-2 are flush with each other. The bottom opening 15-1 is closed by screwing the bran container 15 to the screwing portion 10-4 with the rice milling container 14 housed inside the bran container 15, and the rice bran container 14, the bran container 15 and the bottom cover are closed. The body 10 and the body 10 are combined together. The one-piece structure combined in this way has a convex portion 10-1 and a convex portion 15 in a state of being overlapped with a groove portion 16 provided inside the upper edge portion of the mounting portion 4 provided on the main body case 1 side. -2 has a structure that can be engaged with, and by engaging with the structure, the integrated structure can be fixed to the mounting portion 4. Then, although not particularly shown, a safety switch that performs a switching operation when the convex portion 10-1 and the convex portion 15-2 in an overlapping state are engaged with the groove portion 16 of the mounting portion 4 at a normal position is provided. When this safety switch is turned on, it is determined that the integrated structure in which the rice milling container 14, the bran container 15, and the bottom cover body 10 are combined is accurately attached to the main body case 1. , The circuit configuration enables the motor 6 to be started.

20は電源スイッチ、21は精米調整スイッチで、それぞれ本体ケース1の外側面に設けられ、本体ケース1に内蔵されるモータ駆動回路22を操作する。23は回転検出素子で、モータ6の回転軸7に取り付けられた円盤24の突片を検出してモータ6の回転を検出し、パルス信号を出力する。なお、回転検出素子23としては、ホール素子やフォトインタラプタ等、磁気・光電・ノイズ等の変化によってパルス信号を出力する公知の構成が採用される。 Reference numeral 20 denotes a power switch and 21 is a rice milling adjustment switch, each of which is provided on the outer surface of the main body case 1 and operates a motor drive circuit 22 built in the main body case 1. Reference numeral 23 denotes a rotation detection element, which detects the protrusions of the disk 24 attached to the rotation shaft 7 of the motor 6, detects the rotation of the motor 6, and outputs a pulse signal. As the rotation detection element 23, a known configuration such as a Hall element or a photo interrupter that outputs a pulse signal due to changes in magnetism, photoelectric, noise, or the like is adopted.

電源スイッチ20は、モータ6をON/OFFするスイッチで、動作確認用のLEDランプを埋設しており、赤色点灯により通電状態にあることを確認できる。精米調整スイッチ21は、ボリュームつまみの回転位置で玄米の精白度を選択するもので、本実施例では、精白度が3分搗き・5分搗き・7分搗き・白米から選択できるようになっている。なお、精白度の段階はこれらに限定されるものではない。 The power switch 20 is a switch that turns on / off the motor 6, and has an LED lamp for checking the operation embedded therein. It can be confirmed that the power switch 20 is in the energized state by lighting in red. The rice milling adjustment switch 21 selects the degree of polishing of brown rice by the rotation position of the volume knob. In this embodiment, the degree of polishing can be selected from 3 minutes, 5 minutes, 7 minutes, and white rice. There is. The stage of the degree of milling is not limited to these.

モータ駆動回路22は、電源スイッチ20による入力操作を受けてモータ6を起動し、モータ6の負荷(電圧値・電流値・消費電力等)から米量を検出する。そして、検出した米量に応じた精米時間を決定する。決定した精米時間に基づく精米動作が開始されると、精米動作中は回転検出素子23からのパルス信号を受けてモータ6の回転数を検出し、この回転数が米量・精白度・精米進行度に関係なく一定となるようにモータ6の動作を制御する。 The motor drive circuit 22 starts the motor 6 in response to an input operation by the power switch 20, and detects the amount of rice from the load (voltage value, current value, power consumption, etc.) of the motor 6. Then, the rice milling time is determined according to the detected amount of rice. When the rice milling operation based on the determined rice milling time is started, the rotation speed of the motor 6 is detected by receiving a pulse signal from the rotation detection element 23 during the rice milling operation, and this rotation speed is the amount of rice, the degree of milling, and the progress of rice milling. The operation of the motor 6 is controlled so as to be constant regardless of the degree.

このようにして構成される精米機は、精米動作に先立って図3に示す手順で準備を行う。
(手順a)精米容器の取り付け
精米容器14に所定量の玄米を入れ、精米容器の下面開口14−1を底部カバー体10の底部カバー膨出部10−3に嵌め込んで取り付ける。なお、このときに底部カバー体10の回転軸11には予め精米羽根12を装着しておき、精米羽根12を精米容器14の内側に収容して精米容器14と底部カバー体10とを嵌着する。
The rice milling machine configured in this way is prepared by the procedure shown in FIG. 3 prior to the rice milling operation.
(Procedure a) Attaching the rice milling container A predetermined amount of brown rice is put into the rice milling container 14, and the bottom opening 14-1 of the rice milling container is fitted into the bottom cover bulging portion 10-3 of the bottom cover body 10 to be attached. At this time, the rice milling blade 12 is attached to the rotating shaft 11 of the bottom cover body 10 in advance, the rice milling blade 12 is housed inside the rice milling container 14, and the rice milling container 14 and the bottom cover body 10 are fitted. To do.

(手順b)糠容器の取り付け
底部カバー体10に取り付けた精米容器14に糠容器15を覆い被せ、糠容器15の内側に精米容器14を収容した状態で糠容器15を底部カバー体10に固定する。このとき、糠容器15の下面開口縁部に形成されたねじ山15−3を底部カバー体の螺着部10−4に螺着することで固定を行う。
(Procedure b) Installation of the bran container The rice bran container 14 attached to the bottom cover body 10 is covered with the bran container 15, and the rice bran container 15 is fixed to the bottom cover body 10 with the rice milling container 14 housed inside the bran container 15. To do. At this time, the thread 15-3 formed on the lower surface opening edge of the bran container 15 is screwed to the threaded portion 10-4 of the bottom cover body to fix the bran container 15.

(手順c)本体ケースへの載置
手順a及び手順bによって組み合わせた精米容器14と糠容器15と底部カバー体10とからなる一体構成体の天地を反転させ、次に、本体ケース1側の載置部4に装着する。この場合に、底部カバー体10の取付筒部10−2が天板2の膨出部8に外嵌して位置決めされ、下カップリング9と上カップリング13とが接合して、モータ6の回転軸7と底部カバー体10の回転軸11とが直結される。
(Procedure c) Placement on the main body case The top and bottom of the integrated structure consisting of the rice milling container 14, the bran container 15, and the bottom cover body 10 combined according to the steps a and b are reversed, and then the top and bottom of the main body case 1 side It is attached to the mounting portion 4. In this case, the mounting cylinder portion 10-2 of the bottom cover body 10 is externally fitted to the bulging portion 8 of the top plate 2 and positioned, and the lower coupling 9 and the upper coupling 13 are joined to form the motor 6. The rotating shaft 7 and the rotating shaft 11 of the bottom cover body 10 are directly connected.

(手順d)本体ケースへの固定
手順cにおいて載置部4に載置した一体構成体の重なり合った凸部10−1と凸部15−2を、載置部4の上縁部内側に設けられた溝部16に係合させる。端面が面一の状態で積層された凸部10−1と凸部15−2を、溝部16に対して正規位置に係合させることにより、適正に係合された状態が図示しない安全スイッチにより検知され、モータ6の駆動が許可される。
(Procedure d) Fixing to the main body case In step c, the overlapping convex portions 10-1 and 15-2 of the integral structure mounted on the mounting portion 4 are provided inside the upper edge portion of the mounting portion 4. Engage with the groove portion 16. By engaging the convex portion 10-1 and the convex portion 15-2, which are laminated with their end faces flush with each other, at a normal position with respect to the groove portion 16, a safety switch (not shown) shows a properly engaged state. It is detected and the drive of the motor 6 is permitted.

このような手順を経てモータ6が駆動されると、モータ回転軸7の回転がダイレクトに底部カバー体10の回転軸11に伝達され、回転軸11に取り付けた精米羽根12を回転駆動し、精米容器14内の玄米を対流させることができる。米の対流により、米同士が摩擦されて米表面が削られ余分な糠が削り取られる。剥離した糠は、精米容器14の網目から外側に排出され、精米容器14と糠容器15との間に形成された空間に貯留される。 When the motor 6 is driven through such a procedure, the rotation of the motor rotating shaft 7 is directly transmitted to the rotating shaft 11 of the bottom cover body 10, and the rice milling blade 12 attached to the rotating shaft 11 is rotationally driven to mill rice. The brown rice in the container 14 can be convoluted. The convection of rice causes the rice to rub against each other, scraping the surface of the rice and scraping off excess bran. The peeled bran is discharged to the outside from the mesh of the rice milling container 14 and stored in the space formed between the rice milling container 14 and the bran container 15.

以下、本実施例の精米機における精米動作について説明する。
前述の手順で玄米と精米機の各部材をセットし、精米調整スイッチ21で希望する精米度を選択し、電源スイッチ20をON操作することで精米動作が開始される。精米動作中は、モータ駆動回路22において、回転検出素子23からのパルス信号を受けてモータ6の回転数を検出し、この回転数が一定となるようにモータ6を制御する。精米度に応じた精米時間が経過すると、モータ6を停止させて動作終了となる。
Hereinafter, the rice milling operation in the rice milling machine of this embodiment will be described.
The rice milling operation is started by setting each member of the brown rice and the rice milling machine in the above procedure, selecting the desired rice milling degree with the rice milling adjustment switch 21, and turning on the power switch 20. During the rice milling operation, the motor drive circuit 22 receives a pulse signal from the rotation detection element 23, detects the rotation speed of the motor 6, and controls the motor 6 so that the rotation speed becomes constant. When the rice milling time according to the degree of rice milling elapses, the motor 6 is stopped and the operation is terminated.

本実施例の精米機においては、制御するモータ6の回転数をN(目標回転数)±100rpmの範囲に収めるように設定が行われ、米量や精白度に応じて精米時間を変えている。例えば、図4に示すように、0.5合の3分搗きで精米時間t1分、2.0合の白米で精米時間t16分と設定されている。なお、胚芽米の設定を行うようにする場合は、玄米中の胚芽残存率を多くするための処置として、回転数を落とし、精米時間を長くするようにしている。また、米研ぎの設定を行うようにする場合は、精米動作時の回転数よりも回転を低く設定するようにしている。 In the rice milling machine of this embodiment, the rotation speed of the controlled motor 6 is set to be within the range of N (target rotation speed) ± 100 rpm, and the rice milling time is changed according to the amount of rice and the degree of whitening. .. For example, as shown in FIG. 4, the rice polishing time is set to t1 minutes for 3 minutes of 0.5 go and the rice polishing time of t16 minutes for white rice of 2.0 go. When setting the rice with embryos, the number of revolutions is reduced and the rice milling time is lengthened as a measure for increasing the residual rate of germs in brown rice. In addition, when setting the rice sharpening, the rotation speed is set lower than the rotation speed during the rice milling operation.

精米動作中には、常に回転数の検出が行われ、モータ6の回転数は米量や精米度の設定に関わらず、精米時は回転数N(目標回転数)±100rpmになるように回転制御される。このとき、米量が多い場合は回転の負荷が大きく、逆に米量が少ない場合は回転の負荷が小さくなり、また同じ米量であっても処理の進行状態によって回転負荷が変化する。よって、モータ駆動回路22では、回転数が上記基準の回転数よりも下がっている時には上げ、上がっている時には下げるという制御が行われる。 During the rice milling operation, the rotation speed is always detected, and the rotation speed of the motor 6 is rotated so as to be the rotation speed N (target rotation speed) ± 100 rpm during rice milling regardless of the setting of the amount of rice and the degree of rice milling. Be controlled. At this time, when the amount of rice is large, the load of rotation is large, and conversely, when the amount of rice is small, the load of rotation is small, and even if the amount of rice is the same, the load of rotation changes depending on the progress of processing. Therefore, in the motor drive circuit 22, control is performed such that the rotation speed is increased when the rotation speed is lower than the above-mentioned reference rotation speed and is decreased when the rotation speed is increased.

このようにして行われるモータ6の駆動制御により精米羽根12が回転すると、精米容器14内の米は、回転の動きと上下の動きとが与えられ、米粒同士が擦れ合って表皮が剥離される。そして、剥離された糠は、精米容器14の網状部から精米容器14と糠容器15との間に形成された空間に飛ばされる。なお、糠容器15は、プラスチックまたはガラス等の透明材料からなり、精米動作の様子を外側から観察できるようになっている。 When the rice milling blade 12 is rotated by the drive control of the motor 6 performed in this way, the rice in the rice milling container 14 is given a rotational movement and a vertical movement, and the rice grains rub against each other and the skin is peeled off. .. Then, the peeled bran is blown from the mesh portion of the rice milling container 14 into the space formed between the rice milling container 14 and the bran container 15. The bran container 15 is made of a transparent material such as plastic or glass, and the state of rice milling operation can be observed from the outside.

精米終了後は、精米容器14と糠容器15と底部カバー体10とからなる一体構成体を本体ケース1から取り外し、天地を反転させて底部カバー体10を上にした状態でまず糠容器15を取り外し、次に精米容器14を取り外す。それにより、精米容器14に米が残り糠容器15に糠が残ることになり、それぞれを取り出して利用することができる。 After the rice milling is completed, the integrated structure consisting of the rice milling container 14, the bran container 15, and the bottom cover body 10 is removed from the main body case 1, the top and bottom are turned upside down, and the bran container 15 is first placed with the bottom cover body 10 facing up. Remove, then remove the rice milling container 14. As a result, rice remains in the rice milling container 14 and bran remains in the bran container 15, and each of them can be taken out and used.

<実施例2>
次に、図5を基にして本発明の第2実施例を説明する。この実施例では精米容器14の全体形状が上面及び下面の両方に開口する円筒形状を呈している。その下面開口14−1は、実施例1と同様に底部カバー膨出部10−3に嵌着可能な構造となっており、上面開口14−2は、糠容器15の天部内面に密接する形状となっている。その他の構成は上記実施例1と同様である。このように精米容器14が円筒形状に形成されることにより、精米動作終了後に行う掃除の手間を軽減することが可能になる。
<Example 2>
Next, a second embodiment of the present invention will be described with reference to FIG. In this embodiment, the overall shape of the rice milling container 14 has a cylindrical shape that opens on both the upper surface and the lower surface. The lower surface opening 14-1 has a structure that can be fitted to the bottom cover bulging portion 10-3 as in the first embodiment, and the upper surface opening 14-2 is in close contact with the inner surface of the top portion of the bran container 15. It has a shape. Other configurations are the same as those in the first embodiment. By forming the rice milling container 14 in a cylindrical shape in this way, it is possible to reduce the labor of cleaning performed after the rice milling operation is completed.

精米動作に先だっての準備手順としては、まず、精米容器の下面開口14−1を底部カバー体10の底部カバー膨出部10−3に嵌め込んで取り付け、次に、精米容器の上面開口14−2より精米容器内に所定量の玄米を投入する。そして、その上から糠容器15を覆い被せ、糠容器15の下面開口縁部に形成されたねじ山15−3を底部カバー体の螺着部10−4に螺着して固定すればよい。糠容器15を底部カバー体10側に螺着することにより、有天円筒形状を有する糠容器15の天部内面に上面開口14−2が密接し、精米容器14内に閉じた空間が形成される。これにより、精米動作中に糠のみが精米容器14の網目から外側に排出され、玄米が飛び出すのを防ぐことができる。 As a preparatory procedure prior to the rice milling operation, first, the lower surface opening 14-1 of the rice milling container is fitted and attached to the bottom cover bulging portion 10-3 of the bottom cover body 10, and then the upper surface opening 14- of the rice milling container is attached. From step 2, put a predetermined amount of brown rice into the rice milling container. Then, the bran container 15 may be covered from above, and the screw thread 15-3 formed on the lower surface opening edge of the bran container 15 may be screwed and fixed to the threaded portion 10-4 of the bottom cover body. By screwing the bran container 15 to the bottom cover body 10 side, the upper surface opening 14-2 is brought into close contact with the inner surface of the top of the bran container 15 having a celestial cylindrical shape, and a closed space is formed in the rice milling container 14. To. As a result, only the bran is discharged to the outside from the mesh of the rice milling container 14 during the rice milling operation, and it is possible to prevent the brown rice from popping out.

この装置は以上のように構成されるが、この発明は上記構成に限定されるものではない。例えば、前述した装置では、米量や精米度に関わらず、常に一定の回転数で制御しているが、例えば米量に応じた回転数を設定し、精米時間を一定にするようにしてもよい。また、モータ6を断続的に駆動してもよい。モータ6を断続運転させることで、精米羽根12が回転するときの対流作用と、精米羽根12が停止するときの沈降作用とによって、米は抑揚を繰り返すことになり、この米の抑揚によって、精米容器内面との摩擦による搗精時間を減らし、米粒同士の摩擦による搗精時間を増やす効果をもたらし、結果的に精米時間の短縮及び米の温度上昇の抑制が図られる。 Although this device is configured as described above, the present invention is not limited to the above configuration. For example, in the above-mentioned device, the rotation speed is always constant regardless of the amount of rice and the degree of rice milling, but for example, even if the rotation speed is set according to the amount of rice and the rice milling time is kept constant. Good. Further, the motor 6 may be driven intermittently. By intermittently operating the motor 6, the rice repeats inflection due to the convection action when the rice milling blade 12 rotates and the settling action when the rice milling blade 12 stops, and the inflection of the rice causes the rice to be milled. It has the effect of reducing the polishing time due to friction with the inner surface of the container and increasing the polishing time due to friction between rice grains, and as a result, the rice polishing time is shortened and the temperature rise of rice is suppressed.

1 本体ケース
6 モータ
10 底部カバー体
11 回転軸
12 精米羽根
14 精米容器
14−1 精米容器の下面開口
15 糠容器
15−1 糠容器の下面開口
20 電源スイッチ
21 精米調整スイッチ
22 モータ駆動回路
1 Main body case 6 Motor 10 Bottom cover 11 Rotating shaft 12 Rice milling blade 14 Rice milling container 14-1 Bottom opening of rice milling container 15 Bran container 15-1 Bottom opening of bran container 20 Power switch 21 Rice milling adjustment switch 22 Motor drive circuit

Claims (3)

下面に開口する有天円筒形状をなし規定量の米を投入する精米容器と、下面に開口する有天円筒形状をなし前記精米容器の全体を覆う糠容器と、前記精米容器の下面開口及び前記糠容器の下面開口を塞ぐ底部カバー体と、前記底部カバー体に垂直に設けられる回転軸と、前記回転軸に設けられる精米羽根と、前記回転軸を回転駆動するモータとを備え、前記底部カバー体は、前記精米容器の下面開口を塞ぎながら前記糠容器の下面開口を塞いで前記精米容器と前記糠容器とを一体に固定し、前記精米容器を内包する前記糠容器が精米機本体の外部に対して露出していることを特徴とする精米機。 A rice milling container that has a heavenly cylindrical shape that opens on the lower surface and is filled with a specified amount of rice, a bran container that has a heavenly cylindrical shape that opens on the lower surface and covers the entire rice milling container, an opening on the lower surface of the rice milling container, and the above. The bottom cover is provided with a bottom cover body that closes the lower surface opening of the bran container, a rotation shaft provided perpendicular to the bottom cover body, a rice milling blade provided on the rotation shaft, and a motor for rotationally driving the rotation shaft. The body closes the lower surface opening of the rice milling container while closing the lower surface opening of the rice bran container to integrally fix the rice milling container and the bran container, and the bran container containing the rice milling container is outside the rice milling machine main body. A rice mill that is characterized by being exposed to the rice. 上面及び下面に開口する円筒形状をなし規定量の米を投入する精米容器と、下面に開口する有天円筒形状をなしその天部内面が前記精米容器の上面と当接し且つ精米容器の全体を覆う糠容器と、前記精米容器の下面開口及び前記糠容器の下面開口を塞ぐ底部カバー体と、前記底部カバー体に垂直に設けられる回転軸と、前記回転軸に設けられる精米羽根と、前記回転軸を回転駆動するモータとを備え、前記底部カバー体は、前記精米容器の下面開口を塞ぎながら前記糠容器の下面開口を塞いで前記精米容器と前記糠容器とを一体に固定し、前記精米容器を内包する前記糠容器が精米機本体の外部に対して露出していることを特徴とする精米機。 A rice milling container that has a cylindrical shape that opens to the upper and lower surfaces and is filled with a specified amount of rice, and a heavenly cylindrical shape that opens to the lower surface, and the inner surface of the top abuts the upper surface of the rice milling container and the entire rice milling container. A rice milling container to cover, a bottom cover body for closing the lower surface opening of the rice milling container and the lower surface opening of the rice milling container, a rotation shaft provided perpendicular to the bottom cover body, a rice milling blade provided on the rotation shaft, and the rotation. The bottom cover body includes a motor for rotating a shaft, and closes the lower surface opening of the rice milling container while closing the lower surface opening of the rice milling container to integrally fix the rice milling container and the rice milling container. A rice milling machine characterized in that the bran container containing the container is exposed to the outside of the rice milling machine main body. 前記糠容器は、透明材料で構成されていることを特徴とする請求項1または2何れか記載の精米機。 The rice milling machine according to claim 1 or 2, wherein the bran container is made of a transparent material.
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