JP4099009B2 - Crusher - Google Patents

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JP4099009B2
JP4099009B2 JP2002179463A JP2002179463A JP4099009B2 JP 4099009 B2 JP4099009 B2 JP 4099009B2 JP 2002179463 A JP2002179463 A JP 2002179463A JP 2002179463 A JP2002179463 A JP 2002179463A JP 4099009 B2 JP4099009 B2 JP 4099009B2
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powder
receiving surface
pulverized
mortar
discharge port
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JP2004017010A (en
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孝治 山本
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Nippon Kouatsu Electric Co
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Nippon Kouatsu Electric Co
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Description

【0001】
【発明の属する技術分野】
本願発明は、擂鉢状に形成した上下臼の粉砕面間でお茶のほか、胡麻、麦、そば等の穀物類等を粉砕して適度な粒度(細かさ)の粉体にする粉砕機に関するもので、より詳しくは上下臼の粉砕面で粉砕した粉体を排出させる排出構造に関するものである。
【0002】
【従来の技術】
お茶のほか、胡麻、麦、そば等の穀物類等を適度な粒度(細かさ)の粉末に粉砕するための粉砕機が特開平10−43615号公報などで提案されている。
【0003】
この粉砕機は、擂鉢状に形成した上臼と、擂鉢状に形成した下臼とを、これらの擂鉢形状の粉砕面を合わせて配設し、固定の下臼の上端に合成樹脂製の受け皿部を全周にわたって固設するとともに、その一部に排出口を設け、回転する上臼側には合成樹脂製のヘラ部材を設け、上臼の回転とともにヘラ部材を受け皿部内で周方向に回動させるようにして、上下臼の粉砕面間で粉砕された緑茶等の粉体(粉末)を粉砕面の上端全周部から受け皿部上に排出し、この排出された粉体をヘラ部材の回動によって前記排出口へ掻き集めて排出する構造になっている。
【0004】
【発明が解決しようとする課題】
前記従来の構造においては、合成樹脂製のヘラ部材が合成樹脂製の受け皿部内を摺接して移動するため、この摺接移動による摩擦により受け皿部に静電気が帯び、粉砕された粉体(粉末)が静電気により排出口に付着してブリッジ状に成長し、排出口が詰まるおそれがある。
【0005】
また、粉体が静電気の帯電によって受け皿部に付着するため、粉砕機の清掃作業時に、粉体の除去清掃が困難になるおそれがある。
【0006】
更に、前記受け皿部とヘラ部材を設けることは、その配置スペース分粉砕機が大型化し、この粉砕機を卓上に置く場合の占有面積が大きくなり、他の物の邪魔になりやすい上に、棚等への保管上も不便になる。
【0007】
そこで本願発明は、前記の問題を解決する粉砕機を提供することを目的とするものである。
【0008】
【課題を解決するための手段】
前記の課題を解決するために、請求項1記載の第1の発明は、固定の擂鉢状の下臼と、回転する擂鉢状の上臼を、これらの擂鉢形状の粉砕面を合わせて配設し、投入された被粉砕物を、前記上下臼の粉砕面間で擂り粉砕しながら上昇させ、この粉砕した粉体を、前記粉砕面の上端全周から排出させる粉砕機において、
前記上臼の上端外周に、前記粉砕面から排出された粉体が載置する受面を全周にわたって形成し、前記下臼の上部には、周方向の一部に切欠からなる凹状の排出口を形成し、前記上臼の受面上に載置された粉体を、上臼の回転により前記排出口へ移送して該排出口から排出するようにし、
前記上臼の受面が、その内側に壁部が形成され外側が開放された略水平面に形成され、かつ、該受面を、前記下臼の上端面より低く形成し、前記下臼の排出口の底面を前記受面よりも低く、かつ、外側に下降する傾斜面に形成したことを特徴とする粉砕機である。
【0009】
本発明においては、上下臼の粉砕面間の上端から全周にわたって排出された粉体は、回転する上臼の受面上に全周にわたって載置される。そして、この受面上に載置された粉体は、上臼の回転とともに周方向へ移送され、下臼の周方向の一部に形成された排出口に到達してこの排出口から落下排出される。
【0010】
この粉体の移送は、前記従来のような合成樹脂製のヘラ部材が使用されず、また、上下臼は通常セラミックス製であるため、前記従来のような静電気の帯電がない。したがって、前記従来のような静電気に起因する問題は発生しない。
【0012】
また、上臼の受面の内側に壁部が形成され、また、前記排出口以外の部分において、上臼の受面の外側に、下臼の上端による壁部が形成されるため、粉砕面の上端から排出された粉体の受面への載置が良好に行われる上に、受面上の粉体が受面の内側及び排出口以外で外側へこぼれることも防止される。
【0013】
また、排出口においては、排出口の底面を受面よりも低く形成したので、受面上の粉体を排出口から排出することが支障なく行える。
【0014】
請求項記載の第の発明は、前記第の発明において、前記上下臼の上部に内蓋を前記下臼に対して回転不能に備え、該内蓋に、前記上臼における受面上に載置されて移送されてくる粉体を止めて、その粉体を前記排出口へ掻き落とす止部材を前記排出口における前記上臼の回転方向の下流側に位置するように設けた粉砕機である。
【0015】
本発明においては、上臼の受面上に載置された粉体が受面とともに排出口部へ回転してくると、粉体が固定状態の止部材に当って排出口部で掻き集められるような状態となり、排出口から落下排出され、より確実な排出が行われる。更に、前記止部材を内蓋に形成したので、内蓋の配置とともに止部材を配置できる。
【0016】
【発明の実施の形態】
本発明の好ましい実施の形態を図に示す実施例に基づいて説明する。
【0017】
図1乃至図7は第1実施例を示す。
図1は本発明を適用した粉砕機の縦断面図で、粉砕機1は卓上に載置できる底カバー2と、該底カバー2上に嵌合した本体ケース3と、該本体ケース3上に着脱可能に嵌合した上部ケース4と、該上部ケース4上に着脱可能に嵌合したキャップ5とからなり、これらは樹脂材料で形成されている。
【0018】
前記底カバー2内には駆動用モータ6が収納されており、該駆動用モータ6はコード7を介して家庭用交流電圧100Vコンセントに接続されるようになっている。該駆動用モータ6の駆動軸8の回転は減速歯車群9を介して、本体ケース3内の中央に配置された回転軸10に伝達されるようになっている。
【0019】
前記本体ケース3の中央上部には、下臼11の外面形状(擂鉢形状)に沿った合成樹脂製の下臼ホルダ12が回転不能に設けられ、該下臼ホルダ12の内側に下臼11が回転不能に設けられている。
【0020】
前記下臼ホルダ12は図7に示すように、下臼11の外面に沿った環状の嵌着部12aと、該嵌着部12aの周方向の一箇所において嵌着部12aと一体成形した排出部12bとからなり、排出部12bは上下方向の筒状に形成され、嵌着部12aの上端と排出部12bの排出路12cとが連通している。しかも排出部12bの上部には、嵌着部12aの排出端12dよりも高い壁12eが形成されている。
【0021】
下臼11は図2に示すように、内面に擂鉢状の粉砕面11aを形成した擂鉢状に形成され、アルミナ磁器、普通磁器、陶器等のセラミックス製で形成されている。前記粉砕面11aには、複数の平行溝からなる主溝11bと、該主溝11bに対して向きを変えた副溝11cが周方向に交互に形成されている。更に、該下臼11の底壁中央部には軸穴11dが形成されており、該軸穴11dには図1及び図5に示すように、位置決め保持部材13が接着材等により固設されている。該位置決め保持部材13の下側には図5に示すように位置決め用溝13aが形成されている。
【0022】
下臼11の上端部における周方向の一箇所には、排出口11eが切欠して凹状に形成されている。該排出口11eの底面11hの形状は、図2に示すように、内側端11fが下臼11の上端面11gより下方に位置し、該内側端11fから外側へ向って下方へ傾斜し、該傾斜面の下端に排出端11iを形成している。また、該下臼11と前記下臼ホルダ12は、前記排出口11eと排出部12bとが周方向において相互に合致し、かつ、排出端11iと排出端12dとが同一高さか或いは排出端11iが下臼ホルダ12の排出端12dより若干高くなるようにして嵌合されている。
【0023】
そして、下臼11に固着した前記位置決め保持部材13の位置決め用溝13aを、図1に示すように、本体ケース3に設けた突起部3aに嵌合して、前記下臼ホルダ12に設けた排出口12bを、図1に示すように、本体ケース3に着脱可能に配置したカップ14上に位置させるようになっている。なお、前記位置決め保持部材13の中央部には軸挿通穴13bが形成され、該軸挿通穴13b内に前記の駆動軸8が回転可能に挿通されている。
【0024】
本体ケース3の外周の一部にはカップ収納凹部15が形成され、該収納凹部15の底面15aは、前側から奥部に至るにつれて下降する傾斜面に形成されている。そして、該収納凹部15aに、無色透明の合成樹脂製のカップ14が着脱可能に収納されている。
【0025】
前記下臼11内には、その粉砕面11aに沿った擂鉢状の粉砕面16aを外側面に形成した上臼16が回転可能に嵌合配置されている。該上臼16はアルミナ磁器、普通磁器、陶器等のセラミックス製からなる擂鉢状に形成され、その粉砕面16aは、図3に示すように、複数の平行溝からなる主溝16bと、その主溝16bに対して向きを変えた副溝16cが、周方向に交互に配置して形成されている。また、底壁中央部には軸穴16dが形成され、該軸穴16dには上臼ホルダ17が嵌合され、接着剤等により上臼16に止着されている。該上臼ホルダ17の内側には前記駆動軸10に固着状態に嵌合する回転板18が設けられており、該回転板18を駆動軸10に嵌合することにより、駆動軸10の回転が上臼16に伝達するようになっている。すなわち、駆動軸10の回転により上臼16が回転するようになっている。
【0026】
上臼16の周壁の下部には投入口16eが上下方向に貫通して設けられており、上臼16内の被粉砕物Bが投入口16eを通じて、下臼の粉砕面11aと上臼16の粉砕面16aとの間の第2粉砕部19間に供給されるようになっている。
【0027】
上臼16の外側上部は、図1、図3及び図5に示すように、切欠部16fを形成して、内側が高く外側が低い2段面に形成されており、その外側の面が略水平面で外側が開放された受面16gに形成され、また、該受面16gの内側に、該受面16g上の被粉砕物が上臼16の上端を乗り越えて上臼16の内側へこぼれないようにする壁部16hが形成されている。該切欠部16f、すなわち受面16gは上臼16の全周にわたって形成されている。
【0028】
更に、前記受面16gは、図1及び図5に示すように、下臼11と上臼16を嵌合した状態において、受面16gが下臼11の上端面11gよりも下方に位置するように、すなわち、受面16gを上端面11gよりも低くして形成されている。
【0029】
前記嵌合された下臼11と上臼16の上部、すなわち、第2粉砕部19の上部を被覆するように内蓋20が、下臼11の上部外周面に着脱可能に嵌合して設けられており、該内蓋20は下臼11に保持された状態で回転しない。
【0030】
該内蓋20は合成樹脂で形成されており、図4に示すように外周部に前記下臼11の上部外周面に嵌合する環状の嵌合壁20aと、該嵌合壁20aの上部において嵌合壁20aより小径に形成された周壁部20bと、天壁20cとが一体成形されている。前記嵌合壁20aと周壁部20bには、前記下臼11における排出口11eに位置して開口部20dが形成されており、第2粉砕部19の上端から被粉砕物(粉体)が排出口11eを通って排出部12bへ排出するのを、内蓋20が支障とならないようにしている。
【0031】
また、小径の周壁部20bを形成することにより、図6に示すように、その段部20eが下臼11の上端面11gに当接し、排出口11e以外の部分で、被粉砕物(粉体)が下臼11外へこぼれないようにしている。
【0032】
前記内蓋20の内周部には、図4及び図6に示すように、合成樹脂製の止部材20fが、前記上臼16の切欠部16fにおける受面16gと壁部16hの外面に接触または近接するような形状で内蓋20と一体成形されている。更に、該止部材20fは、板状に形成されているとともに、図6(b)に示すように、下臼11の排出口11eにおける上臼16の回転方向Aの下流側に位置するように配置されており、上臼16の受面16g上に載置されて上臼11の回転により排出口11eに移送されてきた被粉砕物(粉体)を、掻き集めるように止部材20fで止めて、排出口11eから落下させるようになっている。なお、前記止部材20fは、下臼11の排出口11eにおける一端側、すなわち、上臼16の回転方向の下流側に形成した位置決め凹部11jに嵌合して位置決めされるようになっている。
【0033】
なお、この止部材20fの位置決めは、図8の第2実施例に示すように、止部材20fの下部に、前記下臼11に形成した排出口11eに嵌入する突片20gを一体形成し、該突片20gを図8(b)に示すように、排出口11eの一端面、すなわち、上臼16の回転方向の下流側に位置する面11kに当接させて位置決めするようにしてもよい。
【0034】
また、前記内蓋20は、上部ケース4と一体化させてもよい。
前記内蓋20の天壁20cの中央部には穴20hが形成されており、該穴20hを通じて、上部ケース4側に設けた第1粉砕部21が前記上臼16内に配置されるようになっている。
【0035】
前記第1粉砕部21は、上部ケース4の上部中央に投入口22を有して形成したホッパー部23と、該ホッパー部23の下部に設けた粉砕機構24とからなり、前記回転軸10を前記ホッパー23部内へ突出され、該回転軸10の上部に、外周に螺旋状の送り溝を形成したスクリュ25を螺着して、前記粉砕機構24の回転刃を回転軸10と一体的に回転させるようになっている。
【0036】
前記上部ケース4における投入口22にはキャップ5が着脱可能に備えられている。
【0037】
次に本実施例の作用について説明する。
粉砕機1は、不使用時は例えば食器棚等に保管され、使用時には食卓などのテーブル上に置かれて使用される。
【0038】
使用時には電源コード7を家庭用交流電圧100Vコンセントに接続し、キャップ5を上部ケース4より取り外し、ホッパー23内に緑茶等の被粉砕物Bを入れてキャップ5を被せる。
【0039】
次に、本体ケース3に設けられている図示しないタイマースイッチを所定時間にセットすると、電源より駆動用モータ6に電気が供給され、駆動用モータ6が回転動作する。
【0040】
この回転により回転軸10が回転してスクリュ25と粉砕機構24の回転刃が回転し、スクリュ25の外周に刻設された送り溝により、被粉砕物Bが第1粉砕部21の粉砕機構24に送り込まれ、該第1粉砕部21により被粉砕物Bが粗挽される。粗挽された被粉砕物Bは、粗粉体B1となって上臼16の投入口16eから上下臼11,16の粉砕面11a,16a間で構成される第2粉砕部19に送り込まれる。
【0041】
粉砕面11a,16a間に送りこまれた粗粉体B1は、上臼16の回転によって粉砕面11a,16a間で擂られながら上昇し、微粉体(粉末)B2となって粉砕面11a,16aの上端全周から排出され、更に、下臼11に傾斜して形成された排出口11eから排出部12bに滑り落ち、該排出部12bの下部に装着したカップ14内に落下し、貯溜される。
【0042】
また、下臼11の排出口11eから排出されなかった微粉体B2は、下臼11の上端面11gよりも低い位置に形成した上臼16の受面16g上に溜る。この受面16g上に溜った微粉体B2は、上臼16の回転により回転する受面16gとともに前記排出口11eに回転移送され、排出口11eにおける下流側に配置された止部材20fに当って掻き集められるようにして排出口11eへ落下排出され、排出部12bからカップ14内へ落下する。
【0043】
タイマースイッチにより設定した時間が経過すると、タイマースイッチにより自動的に駆動用モータ6への給電が停止し、駆動用モータ6が停止する。この停止の確認後、電源コード7をコンセントから抜き取り、前記のように微粉体B2が溜められたカップ14を本体ケース3から取り外し、その微粉体B2をカップ14から出して使用する。
【0044】
図9及び図10は第3実施例を示す。
本第3実施例は、前記第1実施例における下臼ホルダ12の変形例で、前記下臼ホルダ12に一体形成した排出部12bを、筒状に形成することなく樋状に形成したものである。
【0045】
その他の構造は前記第1実施例と同様であるため、同一部分には前記と同一符号を付してその説明は省略する。
【0046】
本第3実施例においても前記第1実施例と同様の作用、効果を発揮する。
図11乃至図15は第4実施例を示す。
【0047】
本第4実施例は、前記第1実施例における上臼16の受面16gを、外側が下降するテーパ面に形成し、また、前記第1実施例における内蓋20に設けた止部材20fを無くしたものである。なお、本第4実施例の受面16gは、その外側端を下臼11における排出口11eの内側端11fと同一面か或いは排出口11eの内側端11fよりも高く形成されている。
【0048】
その他の構造は前記第1実施例と同様であるため、前記と同一部分には前記と同一符号を付してその説明を省略する。
【0049】
本第4実施例においては、前記受面16gが傾斜して形成されているため、受面16g上に載置されて排出口11eに位置した微粉体B2は、受面16g上を滑り落ちて排出口11eに排出される。そのため、前記第1実施例における止部材20fを無くすこともできる。
【0050】
なお、本第4実施例において、受面16g上に放射方向の突部を、周方向において部分的に設けることにより、受面16g上に載置された微粉体を、受面16aの回動とともに排出口11e部へより確実に供給することができる。
【0051】
【発明の効果】
以上のようであるから本発明によれば、粉砕面間から排出された粉体を排出口へ移送する際において、前記従来のような静電気を帯電させないため、前記従来のように、静電気により粉体が排出口に付着してブリッジ状に成長して排出口を詰まらせることがなく、また、静電気の帯電により粉体の清掃が困難になることも防止できる。
【0052】
また、前記従来のような受け皿部を形成する部材やヘラ部材を無くすことができ、粉砕機の小型化およびコストダウンを図ることができる。このように小型化できることにより、従来のものに比べて卓上に置く場合の占有面積が小さくなり、他の物の邪魔になることを少なくし、また、棚等への保管も便利になる。
【図面の簡単な説明】
【図1】本発明の第1実施例を示す粉砕機の縦断面図。
【図2】図1における下臼を示すもので、(a)は平面図、(b)は正面図、(c)は(a)におけるC−C線断面図。
【図3】図1における上臼を示すもので、(a)は平面図、(b)は正面図、(c)は底面図。
【図4】図1における内蓋を示すもので、(a)は平面図、(b)は正面図、(c)は底面図、(d)は(a)におけるD−D線断面図。
【図5】図1における上下臼を合わせた組付状態を示すもので、(a)は平面図、(b)は正面図、(c)は(a)におけるE−E線断面図。
【図6】図5の状態において内蓋を被せた状態を示すもので、(a)は平面図、(b)は正面図、(c)は(a)におけるF−F線断面図。
【図7】図1における下臼ホルダーを示すもので、(a)は平面図、(b)は(a)におけるG−G線断面図、(c)は底面図、(d)は正面図。
【図8】本発明の第2実施例を示すもので、上下臼と内蓋を組み付けた状態であって、(a)は平面図、(b)は正面図、(c)は(a)におけるH−H線断面図。
【図9】本発明の第3実施例を示す粉砕機の縦断面図。
【図10】図9における下臼ホルダーを示すもので、(a)は平面図、(b)は(a)におけるI−I線断面図、(c)は底面図、(d)は正面図。
【図11】本発明の第4実施例を示す粉砕機の縦断面図。
【図12】図11における上臼を示すもので、(a)は平面図、(b)は正面図、(c)は底面図。
【図13】図11における上下臼を合わせた組付状態を示すもので、(a)は正面図、(b)は(a)におけるJ−J線断面図。
【図14】図11における内蓋を示すもので、(a)は平面図、(b)は正面図、(c)は底面図、(d)は(a)におけるK−K線断面図。
【図15】図13の状態において内蓋を被せた状態を示すもので、(a)は平面図、(b)は正面図、(c)は(a)におけるL−L線断面図。
【符号の説明】
11 下臼
11a 粉砕面
11e 排出口
11h 底面
16 上臼
16a 粉砕面
16g 受面
16h 壁部
20 内蓋
20f 止部材
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a pulverizer that pulverizes grains such as sesame, wheat, buckwheat, etc., in addition to tea, between the pulverized surfaces of upper and lower mortars formed into a mortar shape to obtain a powder with an appropriate particle size (fineness) More specifically, the present invention relates to a discharge structure for discharging powder pulverized on the pulverized surface of the upper and lower mortars.
[0002]
[Prior art]
In addition to tea, a pulverizer for pulverizing cereals such as sesame, wheat, buckwheat and the like into a powder having an appropriate particle size (fineness) has been proposed in Japanese Patent Laid-Open No. 10-43615.
[0003]
In this crusher, an upper mortar formed in a mortar shape and a lower mortar formed in a mortar shape are arranged with these mortar-shaped pulverized surfaces aligned, and a plastic resin tray is placed on the upper end of the fixed lower mortar. This part is fixed to the entire circumference, and a discharge port is provided in a part of the part. A synthetic resin spatula member is provided on the rotating upper die side, and the spatula member rotates in the circumferential direction within the receiving plate as the upper die rotates. The powder (powder) such as green tea pulverized between the pulverized surfaces of the upper and lower mortars is discharged from the entire periphery of the upper end of the pulverized surface onto the tray, and this discharged powder is discharged to the spatula member. It is structured to scrape and discharge to the discharge port by rotation.
[0004]
[Problems to be solved by the invention]
In the conventional structure, the synthetic resin spatula member slides and moves in the synthetic resin receiving tray portion, so that the tray portion is charged with static electricity and crushed powder (powder) by friction caused by the sliding contact movement. May adhere to the discharge port due to static electricity, grow in a bridge shape, and clog the discharge port.
[0005]
In addition, since the powder adheres to the tray portion due to electrostatic charge, it may be difficult to remove and clean the powder during the cleaning operation of the grinder.
[0006]
Furthermore, providing the tray part and the spatula member increases the size of the pulverizer by the arrangement space, increases the occupied area when the pulverizer is placed on a table, and tends to obstruct other objects. It is also inconvenient for storage.
[0007]
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a pulverizer that solves the above problems.
[0008]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the first invention according to claim 1 is arranged such that a fixed mortar-shaped lower mortar and a rotating mortar-shaped upper mortar are combined with these mortar-shaped grinding surfaces. In the pulverizer that raises the pulverized material charged while grinding between the pulverized surfaces of the upper and lower mortars, and discharges the pulverized powder from the entire upper end of the pulverized surface,
A receiving surface on which the powder discharged from the pulverized surface is placed is formed on the entire outer periphery of the upper die, and a concave discharge made of a notch in a part in the circumferential direction is formed on the upper portion of the lower die. Forming an outlet, and transferring the powder placed on the receiving surface of the upper die to the discharge port by rotation of the upper die, and discharging from the discharge port;
A receiving surface of the upper die is formed in a substantially horizontal plane having a wall portion formed inside thereof and an outer side opened, and the receiving surface is formed lower than an upper end surface of the lower die, The crusher is characterized in that the bottom surface of the outlet is formed on an inclined surface that is lower than the receiving surface and descends outward .
[0009]
In the present invention, the powder discharged over the entire circumference from the upper end between the grinding surfaces of the upper and lower mortars is placed over the entire circumference on the receiving surface of the rotating upper die. The powder placed on the receiving surface is transferred in the circumferential direction along with the rotation of the upper die, reaches a discharge port formed in a part of the lower die in the circumferential direction, and drops and discharges from this discharge port. Is done.
[0010]
The powder is not transferred by the conventional synthetic resin spatula member, and the upper and lower dies are usually made of ceramics, so there is no electrostatic charge as in the conventional case. Therefore, the conventional problem caused by static electricity does not occur.
[0012]
In addition , a wall portion is formed on the inner side of the receiving surface of the upper die, and a wall portion by the upper end of the lower die is formed on the outer side of the receiving surface of the upper die in the portion other than the discharge port. Further, the powder discharged from the upper end of the powder is placed on the receiving surface well, and the powder on the receiving surface is prevented from spilling outside the receiving surface and outside the discharge port.
[0013]
Further, since the bottom surface of the discharge port is formed lower than the receiving surface at the discharge port, the powder on the receiving surface can be discharged from the discharge port without any trouble.
[0014]
A second invention of claim 2, wherein in the first invention, comprises an inner lid can not rotate relative to the lower die on top of the upper and lower dies, the inner lid, the receiving surface of the upper die A crusher provided with a stop member that stops the powder that is placed on and transferred and scrapes the powder to the discharge port so as to be positioned downstream of the discharge port in the rotational direction of the upper die. It is.
[0015]
In the present invention, when the powder placed on the receiving surface of the upper mill rotates together with the receiving surface to the discharge port, the powder hits the fixed stop member and is scraped up at the discharge port. It will be in a state, it will fall and discharge from a discharge port, and more reliable discharge will be performed. Furthermore, since the said stop member was formed in the inner cover, a stop member can be arrange | positioned with arrangement | positioning of an inner cover.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Preferred embodiments of the present invention will be described based on examples shown in the drawings.
[0017]
1 to 7 show a first embodiment.
FIG. 1 is a longitudinal sectional view of a pulverizer to which the present invention is applied. The pulverizer 1 includes a bottom cover 2 that can be placed on a table, a main body case 3 fitted on the bottom cover 2, and a main body case 3. The upper case 4 is detachably fitted, and the cap 5 is detachably fitted on the upper case 4 and is made of a resin material.
[0018]
A drive motor 6 is accommodated in the bottom cover 2, and the drive motor 6 is connected to a household AC voltage 100 V outlet via a cord 7. The rotation of the drive shaft 8 of the drive motor 6 is transmitted to the rotary shaft 10 disposed at the center in the main body case 3 through the reduction gear group 9.
[0019]
At the center upper portion of the main body case 3, a lower mortar holder 12 made of a synthetic resin along the outer surface shape (a bowl shape) of the lower mortar 11 is provided so as not to rotate, and the lower mortar 11 is provided inside the lower mortar holder 12. It is provided so that it cannot rotate.
[0020]
As shown in FIG. 7, the lower mortar holder 12 has an annular fitting portion 12a along the outer surface of the lower mortar 11, and a discharge formed integrally with the fitting portion 12a at one place in the circumferential direction of the fitting portion 12a. The discharge part 12b is formed in a cylindrical shape in the vertical direction, and the upper end of the fitting part 12a communicates with the discharge path 12c of the discharge part 12b. Moreover, a wall 12e higher than the discharge end 12d of the fitting portion 12a is formed on the upper portion of the discharge portion 12b.
[0021]
As shown in FIG. 2, the lower mill 11 is formed into a mortar shape having a mortar-shaped pulverized surface 11a on the inner surface, and is made of ceramics such as alumina porcelain, ordinary porcelain, and earthenware. On the pulverizing surface 11a, main grooves 11b composed of a plurality of parallel grooves and sub-grooves 11c whose directions are changed with respect to the main grooves 11b are alternately formed in the circumferential direction. Further, a shaft hole 11d is formed at the center of the bottom wall of the lower mortar 11, and as shown in FIGS. 1 and 5, a positioning holding member 13 is fixed to the shaft hole 11d with an adhesive or the like. ing. A positioning groove 13a is formed below the positioning holding member 13 as shown in FIG.
[0022]
At one place in the circumferential direction at the upper end of the lower mill 11, a discharge port 11 e is cut out and formed in a concave shape. As shown in FIG. 2, the shape of the bottom surface 11h of the discharge port 11e is such that the inner end 11f is located below the upper end surface 11g of the lower mill 11 and is inclined downward from the inner end 11f to the outside. A discharge end 11i is formed at the lower end of the inclined surface. The lower mortar 11 and the lower mortar holder 12 are such that the discharge port 11e and the discharge portion 12b coincide with each other in the circumferential direction, and the discharge end 11i and the discharge end 12d have the same height or the discharge end 11i. Are fitted so as to be slightly higher than the discharge end 12d of the lower mortar holder 12.
[0023]
Then, the positioning groove 13a of the positioning holding member 13 fixed to the lower die 11 is fitted to the protrusion 3a provided in the main body case 3 as shown in FIG. As shown in FIG. 1, the discharge port 12 b is positioned on a cup 14 that is detachably disposed on the main body case 3. A shaft insertion hole 13b is formed at the center of the positioning holding member 13, and the drive shaft 8 is rotatably inserted into the shaft insertion hole 13b.
[0024]
A cup storage recess 15 is formed on a part of the outer periphery of the main body case 3, and the bottom surface 15 a of the storage recess 15 is formed as an inclined surface that descends from the front side to the back. A colorless and transparent synthetic resin cup 14 is detachably stored in the storage recess 15a.
[0025]
In the lower mill 11, an upper mill 16 having a mortar-shaped pulverized surface 16a along the pulverized surface 11a formed on the outer surface is rotatably fitted and arranged. The upper mill 16 is formed in a mortar shape made of ceramics such as alumina porcelain, ordinary porcelain, and earthenware, and the pulverized surface 16a has a main groove 16b composed of a plurality of parallel grooves and a main groove 16b as shown in FIG. Sub-grooves 16c whose directions are changed with respect to the grooves 16b are alternately arranged in the circumferential direction. A shaft hole 16d is formed at the center of the bottom wall, and an upper mortar holder 17 is fitted into the shaft hole 16d and is fixed to the upper mortar 16 with an adhesive or the like. A rotary plate 18 is provided inside the upper mortar holder 17 so as to be fixedly attached to the drive shaft 10, and the rotation of the drive shaft 10 is achieved by fitting the rotary plate 18 to the drive shaft 10. This is transmitted to the upper die 16. That is, the upper die 16 is rotated by the rotation of the drive shaft 10.
[0026]
An insertion port 16e is provided in the lower part of the peripheral wall of the upper die 16 so as to penetrate in the vertical direction, and the material B to be crushed in the upper die 16 passes through the insertion port 16e and the grinding surface 11a of the lower die and the upper die 16 are formed. It is supplied between the second pulverizing section 19 between the pulverizing surface 16a.
[0027]
As shown in FIGS. 1, 3 and 5, the upper part of the upper mill 16 is formed with a notch 16 f and is formed in a two-step surface having a high inside and a low outside. It is formed on a receiving surface 16g that is open on the outside in a horizontal plane, and the object to be crushed on the receiving surface 16g does not spill over the upper end of the upper die 16 and spill inside the upper die 16 inside the receiving surface 16g. A wall portion 16h is formed. The notch 16 f, that is, the receiving surface 16 g is formed over the entire circumference of the upper die 16.
[0028]
Furthermore, as shown in FIGS. 1 and 5, the receiving surface 16 g is positioned below the upper end surface 11 g of the lower die 11 when the lower die 11 and the upper die 16 are fitted. That is, the receiving surface 16g is formed lower than the upper end surface 11g.
[0029]
An inner lid 20 is detachably fitted to the upper outer peripheral surface of the lower mill 11 so as to cover the upper parts of the lower mill 11 and the upper mill 16 fitted, that is, the upper part of the second crushing portion 19. The inner lid 20 is not rotated while being held by the lower mill 11.
[0030]
The inner lid 20 is formed of a synthetic resin, and as shown in FIG. 4, an annular fitting wall 20a fitted to the upper outer peripheral surface of the lower mortar 11 on the outer peripheral portion, and an upper portion of the fitting wall 20a. A peripheral wall portion 20b having a smaller diameter than the fitting wall 20a and a top wall 20c are integrally formed. An opening 20d is formed in the fitting wall 20a and the peripheral wall portion 20b at the discharge port 11e in the lower mill 11 so that an object to be crushed (powder) is discharged from the upper end of the second pulverizing portion 19. The inner lid 20 does not interfere with the discharge through the outlet 11e to the discharge portion 12b.
[0031]
Further, by forming the small-diameter peripheral wall portion 20b, as shown in FIG. 6, the stepped portion 20e abuts on the upper end surface 11g of the lower mill 11, and the portion to be crushed (powdered powder) at a portion other than the discharge port 11e. ) Does not spill out of the lower mill 11.
[0032]
As shown in FIGS. 4 and 6, a synthetic resin stop member 20 f contacts the receiving surface 16 g of the notch 16 f of the upper mortar 16 and the outer surface of the wall portion 16 h on the inner peripheral portion of the inner lid 20. Alternatively, it is integrally formed with the inner lid 20 so as to be close. Further, the stop member 20f is formed in a plate shape, and is positioned on the downstream side in the rotation direction A of the upper die 16 at the discharge port 11e of the lower die 11 as shown in FIG. Stopped by the stop member 20f so as to scrape the object to be crushed (powder) placed on the receiving surface 16g of the upper mill 16 and transferred to the discharge port 11e by the rotation of the upper mill 11 Then, it is made to fall from the discharge port 11e. The stop member 20f is positioned by being fitted into a positioning recess 11j formed on one end side of the discharge port 11e of the lower mill 11 , that is, on the downstream side in the rotation direction of the upper mill 16.
[0033]
As shown in the second embodiment of FIG. 8, the positioning of the locking member 20f is integrally formed with a projecting piece 20g that fits into the discharge port 11e formed in the lower mill 11 at the bottom of the locking member 20f. As shown in FIG. 8 (b), the protruding piece 20g may be positioned in contact with one end face of the discharge port 11e, that is, the face 11k located downstream in the rotational direction of the upper mill 16. .
[0034]
The inner lid 20 may be integrated with the upper case 4.
A hole 20h is formed in the central portion of the top wall 20c of the inner lid 20, and the first crushing portion 21 provided on the upper case 4 side is disposed in the upper die 16 through the hole 20h. It has become.
[0035]
The first crushing part 21 includes a hopper part 23 formed with an inlet 22 in the upper center of the upper case 4 and a crushing mechanism 24 provided at the lower part of the hopper part 23. A screw 25 protruding into the hopper 23 and having a spiral feed groove formed on the outer periphery thereof is screwed onto the rotating shaft 10 so that the rotary blade of the crushing mechanism 24 rotates integrally with the rotating shaft 10. It is supposed to let you.
[0036]
A cap 5 is detachably provided at the insertion port 22 in the upper case 4.
[0037]
Next, the operation of this embodiment will be described.
The crusher 1 is stored in, for example, a cupboard when not in use, and is placed on a table such as a table when used.
[0038]
At the time of use, the power cord 7 is connected to a household AC voltage 100 V outlet, the cap 5 is removed from the upper case 4, and the crushed object B such as green tea is put in the hopper 23 and the cap 5 is put on.
[0039]
Next, when a timer switch (not shown) provided in the main body case 3 is set at a predetermined time, electricity is supplied from the power source to the driving motor 6 and the driving motor 6 rotates.
[0040]
By this rotation, the rotating shaft 10 rotates and the screw 25 and the rotating blade of the crushing mechanism 24 rotate, and the material B to be crushed is fed into the crushing mechanism 24 of the first crushing unit 21 by the feed groove formed on the outer periphery of the screw 25. The material B to be crushed is coarsely ground by the first pulverizing unit 21. The coarsely pulverized object B becomes coarse powder B1 and is fed from the charging port 16e of the upper mill 16 to the second pulverizing section 19 formed between the pulverized surfaces 11a and 16a of the upper and lower mortars 11 and 16.
[0041]
The coarse powder B1 fed between the pulverized surfaces 11a and 16a rises while being beaten between the pulverized surfaces 11a and 16a by the rotation of the upper mill 16, and becomes a fine powder (powder) B2 to be formed on the pulverized surfaces 11a and 16a. The product is discharged from the entire upper end, and further slides down from a discharge port 11e formed on the lower die 11 to the discharge part 12b, falls into the cup 14 attached to the lower part of the discharge part 12b, and is stored.
[0042]
Further, the fine powder B2 that has not been discharged from the discharge port 11e of the lower die 11 is accumulated on the receiving surface 16g of the upper die 16 formed at a position lower than the upper end surface 11g of the lower die 11. The fine powder B2 collected on the receiving surface 16g is rotated and transferred to the discharge port 11e together with the receiving surface 16g rotated by the rotation of the upper mill 16, and hits the stop member 20f disposed on the downstream side of the discharge port 11e. It is dropped and discharged to the discharge port 11e so as to be collected, and falls into the cup 14 from the discharge portion 12b.
[0043]
When the time set by the timer switch elapses, the power supply to the driving motor 6 is automatically stopped by the timer switch, and the driving motor 6 stops. After confirming this stop, the power cord 7 is removed from the outlet, the cup 14 in which the fine powder B2 is stored as described above is removed from the main body case 3, and the fine powder B2 is taken out from the cup 14 and used.
[0044]
9 and 10 show a third embodiment.
The third embodiment is a modification of the lower mortar holder 12 in the first embodiment, in which the discharge portion 12b formed integrally with the lower mortar holder 12 is formed in a bowl shape without being formed into a cylindrical shape. is there.
[0045]
Since the other structure is the same as that of the first embodiment, the same parts are denoted by the same reference numerals and the description thereof is omitted.
[0046]
The third embodiment also exhibits the same operations and effects as the first embodiment.
11 to 15 show a fourth embodiment.
[0047]
In the fourth embodiment, the receiving surface 16g of the upper mortar 16 in the first embodiment is formed as a tapered surface whose outer side descends, and the stopper member 20f provided on the inner lid 20 in the first embodiment is provided. It is lost. The receiving surface 16g of the fourth embodiment is formed such that its outer end is flush with the inner end 11f of the discharge port 11e in the lower mill 11 or higher than the inner end 11f of the discharge port 11e.
[0048]
Since the other structure is the same as that of the first embodiment, the same parts as those described above are denoted by the same reference numerals as those described above, and the description thereof is omitted.
[0049]
In the fourth embodiment, since the receiving surface 16g is inclined, the fine powder B2 placed on the receiving surface 16g and positioned at the discharge port 11e slides down on the receiving surface 16g. It is discharged to the discharge port 11e. Therefore, the stop member 20f in the first embodiment can be eliminated.
[0050]
In the fourth embodiment, a radial protrusion is partially provided on the receiving surface 16g in the circumferential direction so that the fine powder placed on the receiving surface 16g can be rotated by the receiving surface 16a. Moreover, it can supply more reliably to the discharge port 11e part.
[0051]
【The invention's effect】
As described above, according to the present invention, when the powder discharged from between the pulverized surfaces is transferred to the discharge port, the conventional static electricity is not charged. It is possible to prevent the body from adhering to the discharge port and growing in a bridge shape and clogging the discharge port, and preventing the powder from being difficult to clean due to electrostatic charging.
[0052]
Moreover, the member and spatula member which form the saucer part like the said conventional can be eliminated, and size reduction and cost reduction of a grinder can be achieved. By being able to be miniaturized in this way, the area occupied when placed on a table is reduced compared to the conventional one, and it is less likely to interfere with other objects, and storage on a shelf or the like becomes convenient.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of a crusher showing a first embodiment of the present invention.
2 shows the lower mill in FIG. 1, in which (a) is a plan view, (b) is a front view, and (c) is a cross-sectional view taken along the line CC in (a).
FIGS. 3A and 3B show an upper mill in FIG. 1, in which FIG. 3A is a plan view, FIG. 3B is a front view, and FIG.
4 shows the inner lid in FIG. 1, wherein (a) is a plan view, (b) is a front view, (c) is a bottom view, and (d) is a sectional view taken along line DD in (a).
5 shows an assembled state in which the upper and lower mortars in FIG. 1 are combined, (a) is a plan view, (b) is a front view, and (c) is a sectional view taken along line EE in (a).
6 shows a state in which the inner lid is covered in the state of FIG. 5, in which (a) is a plan view, (b) is a front view, and (c) is a sectional view taken along line FF in (a).
7 shows the lower mortar holder in FIG. 1, (a) is a plan view, (b) is a cross-sectional view taken along line GG in (a), (c) is a bottom view, and (d) is a front view. .
FIGS. 8A and 8B show a second embodiment of the present invention in a state where an upper and lower mortar and an inner lid are assembled, where FIG. 8A is a plan view, FIG. 8B is a front view, and FIG. HH sectional view taken on the line.
FIG. 9 is a longitudinal sectional view of a crusher showing a third embodiment of the present invention.
10 shows the lower mortar holder in FIG. 9, where (a) is a plan view, (b) is a cross-sectional view taken along line II in (a), (c) is a bottom view, and (d) is a front view. .
FIG. 11 is a longitudinal sectional view of a pulverizer showing a fourth embodiment of the present invention.
12 shows the upper mill in FIG. 11, where (a) is a plan view, (b) is a front view, and (c) is a bottom view. FIG.
FIGS. 13A and 13B show an assembled state in which the upper and lower mortars in FIG. 11 are combined, in which FIG. 13A is a front view, and FIG.
14 shows the inner lid in FIG. 11, where (a) is a plan view, (b) is a front view, (c) is a bottom view, and (d) is a sectional view taken along line KK in (a).
FIGS. 15A and 15B show a state in which the inner lid is covered in the state of FIG. 13, wherein FIG. 15A is a plan view, FIG. 15B is a front view, and FIG.
[Explanation of symbols]
11 Lower mill 11a Grinding surface 11e Discharge port 11h Bottom
16 upper die
16a Crushing surface 16g Receiving surface 16h Wall portion 20 Inner lid 20f Stopping member

Claims (2)

固定の擂鉢状の下臼と、回転する擂鉢状の上臼を、これらの擂鉢形状の粉砕面を合わせて配設し、投入された被粉砕物を、前記上下臼の粉砕面間で擂り粉砕しながら上昇させ、この粉砕した粉体を、前記粉砕面の上端全周から排出させる粉砕機において、
前記上臼の上端外周に、前記粉砕面から排出された粉体が載置する受面を全周にわたって形成し、前記下臼の上部には、周方向の一部に切欠からなる凹状の排出口を形成し、前記上臼の受面上に載置された粉体を、上臼の回転により前記排出口へ移送して該排出口から排出するようにし、
前記上臼の受面が、その内側に壁部が形成され外側が開放された略水平面に形成され、かつ、該受面を、前記下臼の上端面より低く形成し、前記下臼の排出口の底面を前記受面よりも低く、かつ、外側に下降する傾斜面に形成したことを特徴とする粉砕機。
A fixed mortar-shaped lower mortar and a rotating mortar-shaped upper mortar are arranged together with these mortar-shaped pulverized surfaces, and the material to be pulverized is crushed between the pulverized surfaces of the upper and lower mortars. In the pulverizer that raises the pulverized powder while discharging the pulverized powder from the entire upper end of the pulverized surface
A receiving surface on which the powder discharged from the pulverized surface is placed is formed on the entire outer periphery of the upper die, and a concave discharge made of a notch in a part in the circumferential direction is formed on the upper portion of the lower die. Forming an outlet, and transferring the powder placed on the receiving surface of the upper die to the discharge port by rotation of the upper die, and discharging from the discharge port;
A receiving surface of the upper die is formed in a substantially horizontal plane having a wall portion formed inside thereof and an outer side opened, and the receiving surface is formed lower than an upper end surface of the lower die, A crusher characterized in that the bottom surface of the outlet is formed on an inclined surface that is lower than the receiving surface and descends outward .
前記上下臼の上部に内蓋を前記下臼に対して回転不能に備え、該内蓋に、前記上臼における受面上に載置されて移送されてくる粉体を止めて、その粉体を前記排出口へ掻き落とす止部材を前記下臼の排出口における前記上臼の回転方向の下流側に位置するように設けた請求項記載の粉砕機。An upper part of the upper and lower dies is provided with an inner lid so as not to rotate with respect to the lower die, and the powder placed on the receiving surface of the upper die is transferred to the inner lid and the powder is stopped. milling machine according to claim 1, wherein provided so as to be positioned on the downstream side in the rotational direction of the upper die a stop member for scraping off the said discharge opening at the discharge port of the lower die to.
JP2002179463A 2002-06-20 2002-06-20 Crusher Expired - Fee Related JP4099009B2 (en)

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CN102186592B (en) * 2008-08-22 2014-12-03 Fl史密斯公司 Heavy-duty drive arrangement and mill driven by the same
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