JP3649976B2 - Packing paper loading mechanism of medicine packaging machine - Google Patents

Packing paper loading mechanism of medicine packaging machine Download PDF

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JP3649976B2
JP3649976B2 JP33596599A JP33596599A JP3649976B2 JP 3649976 B2 JP3649976 B2 JP 3649976B2 JP 33596599 A JP33596599 A JP 33596599A JP 33596599 A JP33596599 A JP 33596599A JP 3649976 B2 JP3649976 B2 JP 3649976B2
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core
roll paper
core tube
paper
packaging
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JP2001151391A5 (en
JP2001151391A (en
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隆彦 大村
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Takazono Corp
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Takazono Corp
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Description

【0001】
【発明の属する技術分野】
本発明は、主として病院・医院などで使用される薬剤分包機に装填して使用されるロール巻された包装用紙の給紙部に対する装着機構に関するもので、詳しくは寸法の異なる給紙部に対して、共通した包装用紙を装着使用できるようにする薬剤分包機の包装用紙装着機構に関するものである。
【0002】
【従来の技術】
従来、病院・医院などにおいて患者への投薬を調剤包装する薬剤分包機に使用されている包装用紙は、所定の幅の連続用紙をロール巻(以下、単にロール紙という)されていて、これを分包機の給紙部における支持軸体に装填して使用できるようにされる。そのために、包装用のロール紙は前記支持軸体に対して装填するのを容易にするとともに、ロール状に所定量巻付ける際にその作業を容易にすることから芯管を備えており、その芯管を前記給紙部の支持軸体に対して適合するように内径や長さ寸法を整えられている。
【0003】
前記ロール紙を分包機の給紙部における支持軸体に装填して円滑に繰り出されるようにするため、機体に一端部を支持されて回転自在な支持軸体上で半径方向に突設される係止ピンと、芯管に設けられた切込みとが係合するようにされている。このようなものの一例が実公昭56−44757号公報によって知られている。また、支持軸上で回転自在に支持される筒体の一端部に永久磁石を取付けて、この永久磁石に吸着する強磁性板を端部に備える芯管に巻付けられたロール紙を装填して、その芯管側の強磁性板と筒体側の永久磁石との吸着力で支持軸上にて円滑に回転して給紙できるようにするものが実開昭59−116340号公報によって知られている。
【0004】
【発明が解決しようとする課題】
通常、前記ロール紙は、分包機の給紙部における支持構造については前述のように機械メーカーによってその支持構造が異なるが、その幅寸法においては使用の目的で同一であることからほぼ一定の寸法にされている。そのために、例えば調剤量の多い病院などでは、複数の薬剤分包機が使用されていて、その包装用紙も当然多量に消費される。このようなことから、使用される分包機のメーカーが統一されていない場合、芯管の異なるロール紙を準備して置かねばならないことになる。
【0005】
そして、使用されるロール紙の種類が偏って消費されると、使用に際して給紙部で合致しないものが生じることになり不都合である。このような事態が生じないようにするためには、常に必要以上の在庫を持たねばならなくなり、過剰な経費を必要とするという問題が生じる。また、使用されているロール紙としては、一般にグラシン紙の片面にポリエチレン樹脂をラミネートしたものであるが、そのグラシン紙は乾燥し易くかつ粘りが少なくて破れ易い紙質であることから長期の保管中に端部で破損して使用不能になるという問題点があり、多くの在庫を所有することは好ましくないという問題がある。
【0006】
本発明は、このような問題点を解消するためになされたもので、使用される分包機の給紙部における支持軸体の外径寸法や係合手段が異なっていてもロール紙を共通使用できるようにされた薬剤分包機の包装用紙装着機構を提供することを目的とするものである。
【0007】
【課題を解決するための手段および作用・効果】
前述された目的を達成するために、本発明による薬剤分包機の包装用紙装着機構は、第1に、
包装用のロール紙芯管を支持する支持軸上に装着されるそれぞれの薬剤分包機特有の芯管としての既存巻芯に被嵌させて、前記既存巻芯とロール紙芯管をともに回転可能にする摩擦係合手段を備える薬剤分包機の包装用紙装着機構であって、
前記摩擦係合手段は、前記ロール紙芯管の内周面に設けられる複数の弾性体を有していることを特徴とするものである。
【0008】
このように構成される本発明においては、供給する連続包装用紙のロール紙芯管内径を、流通している既存の分包機用ロール紙の巻芯(芯管)で最も大きい外径寸法よりも大きい法として、その内部に軸心方向に弾性力が作用する複数の弾性体を有する摩擦係合手段設けられているので、分包機給紙部の支持軸体にそれぞれの薬剤分包機特有の芯管としての既存巻芯を装着しておいて、この既存巻芯上に、新たなロール紙を装填すると、そのロール紙芯管内部に設けた摩擦係合手段が既存巻芯の表面と摩擦力で係合して、ロール紙芯管をその既存巻芯を介して支持軸体に回転自在に支持することができる。
【0009】
本発明によれば、芯管内部設けた摩擦係合手段によって既存巻芯外径とロール紙芯管内径部との寸法差を自動調節することができ、寸法の異なる分包機給紙部の支持部に対応させて、共通で使用できる連続包装用紙を提供でき、経済性を高めることができるという効果を奏するのである。
【0014】
本発明において、前記弾性体は、前記ロール紙芯管の軸線方向に設けられているのが好ましい。また、前記弾性体は、接触面に摩擦層を備える板バネであるのがよい。また、前記弾性体は、前記ロール紙芯管の軸線方向に筋条に複数条盛付けられる発泡材もしくは軟質の弾性材であるのがよい。このような構成とすることで、既存外径とロール紙内径との寸法差が小さい場合に、そのロール紙芯管に直接摩擦係合手段を付しておくことができて、アタッチメントを用いることなく寸法の異なる給紙部への装填が可能になる。そして、給紙部の支持軸(既存巻芯)にロール紙を装填するとき軸線方向には弾性体の抵抗が少ないので、そのまま押し込むことでそれら弾性体が平均的に半径方向に寸法調整を行って装着され、紙の繰り出し時には周方向(幅方向)に多くの抵抗が生じて装填部での滑りの発生が防止され、円滑に回転して紙を正常に繰り出すことができるという効果がある。また、その摩擦係合手段としては、簡単な構成であるから大きくコストアップすることなく提供できる。なお、前記弾性材は、点在させて設けるようにしてもよい。
【0015】
また、本発明による薬剤分包機の包装用紙装着機構は、第2に、
包装用のロール紙芯管を支持する支持軸上に装着されるそれぞれの薬剤分包機特有の芯管としての既存巻芯に被嵌させて、前記既存巻芯とロール紙芯管をともに回転可能にする摩擦係合手段を備える薬剤分包機の包装用紙装着機構であって、
前記摩擦係合手段は、前記ロール紙芯管の端部に前記ロール紙芯管の軸心方向に突出されるとともに、その端部の内側に軸線に沿った切込みが形成された鉤型の係止突片を有し係止突片の前記切込みに面する係合面部が前記既存巻芯の端部と係合するように構成されていることを特徴とするものである。ここで、前記係合面部には弾性体が付されているのが好ましい。また、前記係合面部は、前記切込みの開口側に向けて下がり勾配の傾斜面に形成されているのがよい。
【0016】
このようにロール紙芯管の端部に摩擦係合手段として係止突片を複数箇所に設けるようにすれば、既存巻芯の外周面に対する直接的あるいはアタッチメントを介在させての間接的な摩擦力による係合とは異なる嵌め合い係合で、ロール紙芯管を支持軸体に既存巻芯を介して支持させて給紙できることになる。この場合においては、ロール紙芯管の端部内側に突設された複数の係止突片の内側に設けられる切込み、既存巻芯の手前側端部に被せるようにしてその既存巻芯の内端部に係止突片の切込みに面する係合面部を当接させることにより、その係合面部と既存巻芯の内端部との接触摩擦によって両者を保持させることができる。
【0017】
この際、その係合面部に弾性体を付してあれば、摩擦力をより高められ、かつその弾性体の弾性変形で口径の差を自動調節できるのである。あるいは、その係合面部を切込みの開口側に向けて下がり勾配の傾斜面に形成すれば、その勾配で摩擦力を高めると同時に口径差の自動調節が行える。このような方式は口径差の小さい場合により効果的である。もちろん、この形式と芯管内周面の一部に弾性体による突起を設けることを併用することもできる。
【0018】
【発明の実施の形態】
次に、本発明による薬剤分包機の包装用紙装着機構の具体的な実施の形態について、図面を参照しつつ説明する。
【0019】
図1に本発明に係る薬剤分包機の包装用紙装着機構の要部を表わす図が、図2に図1のA−A視断面図が、図3に係止バネの拡大断面図(a)および一部側面図(b)が、それぞれ示されている。
【0020】
薬剤分包機における連続包装用紙(ロール紙)の給紙部1には、ロール紙取付軸2が設けられ、この取付軸2に対してロール紙5を巻付けている芯管部分を被嵌させて装着できるようになっている。
【0021】
本実施例の包装用紙装着機構10は、前記薬剤分包機における給紙部1でのロール紙取付軸2の寸法が、その薬剤分包機のメーカによってそれぞれ異なっているが使用されるロール紙5(連続包装用紙)の寸法(この場合幅寸法)については概ね同じ寸法になっていることに着目して、薬剤分包機の給紙部1における取付軸2の寸法の如何にかかわらず共通して使用できるようにする構成のものである。そのために、前記給紙部1における取付軸2には、それぞれの薬剤分包機特有のロール紙芯管をそのまま取付けておいて、その上に本実施例の摩擦係合手段11を備える包装用紙装着機構10によってロール紙5(以下、共通ロール紙5という)を装着して使用できるようにされている。
【0022】
本実施例の包装用紙装着機構10における摩擦係合手段11は、大別して既存の各種ロール紙における芯管(以下、既存の芯管を区別するために既存巻芯6という)の直径と共通ロール紙5の芯管12の内径との寸法差が大きい場合と、その寸法差が小さい場合とで異なり、前者の場合にはアタッチメントを用いる方式が採用され、後者の場合には直接的に機能する方式が採用される。
まず、アタッチメントを用いる場合について説明する。本実施例の共通ロール紙5の芯管12は、内径寸法が既存巻芯6の直径より大きい寸法にされており、その内周面12aに突起条13が複数等分して軸線に沿い設けられている。そしてその芯管12内に既存巻芯6との寸法差を埋めて装着できるようにするアタッチメント15を着脱可能に付設される。
【0023】
アタッチメント15には、その主体15aの外周面に前記芯管12の内周面12aに突設されている突起条13と係合する溝条16を対応する数等分して刻設されており、これら溝条16形成部間にそれぞれ係止用の板バネ17(本発明における弾性体に相当する)が軸線に沿って等分配置されている。その板バネ17は、図3に示されるように、両端部17a(図では片側のみ表わされている)を外向きに屈曲させて、アタッチメント15の主体15aに設けられた透かし穴18を通して外側にて支持され、芯管12の軸心方向に突出すようにされている。なお、前記透かし穴18は長穴にされて挿通する板バネ17の端部17aが軸方向に移動自在なようにされている。
【0024】
前記板バネ17の中間部には巻芯6と接触する側にゴム質の材料にてなる弾性摩擦片19が一体に取付けられており、この弾性摩擦片19は板バネ17の幅方向に一部を延長させてリップ部19a,19aが形成されている。
【0025】
このように構成される本実施例の包装用紙装着機構10は、使用される対象の給紙部1におけるロール紙取付軸2にその機械特有の既存巻芯6を予め装着しておき、前記アタッチメント15を使用する共通ロール紙の芯管12内部に、その溝条16を突起条13に合わせて嵌め込み装着する。その後に、既存巻芯6に対して共通ロール紙5を取付けるようにする。
【0026】
共通ロール紙5を既存巻芯6が取付けられているロール紙取付軸2に装填すると、内挿されているアタッチメント15付属の板バネ17が装着しようとする既存巻芯6の外周面に周囲から接触して、その既存巻芯6の外径に対応する寸法となるように外向きに押し戻される。すると、各板バネ17は、いずれも両端部でアタッチメント15の外周側に位置して移動自在にされているから、既存巻芯6の外面によって押されるにつれ、屈曲部17bの部分で弾性に抗して変形させられ半径方向に変位され、その反力で板バネ17のアタッチメント15内側に突出している部分が既存巻芯6の周面に強く押し付けられる。言い換えると、板バネ17が四方から既存巻芯6を押し付けて突っ張ることになる。この突っ張りによって装着部での軸径に対する寸法差が自動的にアジャストされる。なお、前記板バネ17の両端部17a,17aは共通ロール紙5の芯管12内周面12aによって押さえられ、板バネ17の弾発力が維持される。
【0027】
したがって、既存巻芯6に対して装填される共通ロール紙5は、その軸心を取付軸2に対して同心に保持されることになる。そして、各板バネ17には、いずれも弾性摩擦片19が一体に取付けられており、この弾性摩擦片19は板バネ17の幅方向に一部を延長させてリップ部19a,19aを備えているので、前記のようにして突っ張り力が生じると、既存巻芯6の周面に沿うように張り出すことになって接触面での摩擦力が高められる。その結果、ロール紙が繰り出し方向に回転を開始すると、取付軸2に対して一体的に取付いている既存巻芯6とアタッチメント15が一体的になり、かつアタッチメント15と芯管12とが突起条13と溝条16の係合で一体化されているので、全体として取付軸2に支持されて回転され、円滑な給紙が行えるのである。
【0028】
そして、既存巻芯6に対する共通ロール紙5の芯管12を装着する際には、アタッチメント15に付属する複数の板バネ17が幅の狭いものであるから、突っ張り力が大きく働いても、それに伴う軸線方向の摩擦力は円周方向に摩擦力に較べて著しく小さいので差込・引き抜き操作は無理なく行うことができる。
【0029】
本実施例の包装用紙装着機構10によれば、このようにして共通ロール紙5の芯管12と既存巻芯6との間に寸法差が大きくあっても、アタッチメント15を介在させて、その付属する板バネ17を利用した摩擦係合手段11によって自動的にアジャストさせて無理なく装着することができる。したがって、寸法差のある各種の薬剤分包機における給紙部に対して共通するロール紙を採用することができる。
【0030】
また、前記アタッチメント15と共通ロール紙5の芯管12との係止構造について、前述のような突起条と溝条との係合構造ではその芯管12に特別な構造を必要とするので、芯管内面を通常の円周面にして、図4に示されるように、アタッチメント15Aに前述の溝条に代えて前記板バネ17と同様の板バネ17′を外向きにも複数等分して配設するようにしてもよい。こうすると、共通ロール紙5の芯管12内部にアタッチメント15Aを挿入すると、その外向き板バネ17′が前述の既存巻芯6に対する内向きの板バネ17と同様に作用して係止され、この状態で取付軸2上の既存巻芯6に対する装着ができる。
【0031】
また、図示省略するが、前記板バネ17に代えて弾性を備える形状にされた樹脂製の弾性体をアタッチメントに複数箇所で組み込んで装着巻芯外径との寸法差に対応するとともに装着時の係止力を得るようにすることができる。
【0032】
次に、図5にアタッチメントを用いない場合の共通ロール紙芯管に設けられた摩擦係合手段の実施例を示す図が、縦断面図(a)およびB−B視断面図によって示されている。
【0033】
この図5に示される摩擦係合手段11Aは、共通ロール紙5の芯管12Aの内周面12aに弾性材(例えばウレタン、発泡ポリウレタン、軟質ビニル、ゴムなど)による突起条20を複数軸線方向に付着配設されてなる。
【0034】
このように構成される実施例の摩擦係合手段11Aによれば、共通ロール紙5の芯管12A内径Dと既存巻芯6の外径dの寸法差が少ない場合、その芯管12Aに付された弾性体にてなる突起条20の部分で両者間の寸法差を調節するとともに、その突起条20と既存巻芯6の周面との接触摩擦抵抗によって取付軸2側に共通ロール紙5を係合保持させて装着され、包装用紙の円滑な回転繰り出しが行えることになる。
【0035】
この際、共通ロール紙5の装着時には、既存巻芯6に対して芯管12A側付設の突起条20が軸線方向に付されているので大きな抵抗を受けることなく装着できる。また、複数の突起条20を等分して配設しておくことにより、装着時に自動的に軸心を合致させることができる。そして、前記突起条20は、取付軸2上に固定されている既存巻芯6の周面に対して、その幅方向に広い範囲で接触当接しているので、大きな摩擦力が作用して既存巻芯6と芯管12Aが一体的に結合されてともに回転し、目的を達成できる。
【0036】
なお、前記弾性体による突起条20は、例えば発泡された弾性体を用いることにより装着される共通ロール紙5の芯管12Aと既存巻芯6との寸法差が多種類あるとき、その多くに対応して装着寸法差を自動的に調節できる利点がある。しかも、このように共通ロール紙5の芯管12Aに摩擦係合手段11Aを設けておけば、別途アタッチメントなどを必要としないので、取扱いが便利である。また、このような簡単な構成とすることでコストアップを最小限にとどめ、経済性を高めることができるという効果が得られる。
【0037】
なお、前記摩擦係合手段11Aにおける弾性体による突起条20は、螺旋状にして設けるようにしてもよい。こうすると、円周方向の摩擦抵抗を大きくすることができる。また、必要に応じて、前記弾性体を点在させて付着するようにしてもよい。
【0038】
さらに、他の実施例として、図6にロール紙芯管の端部に摩擦係合手段を設けられた実施例を示す断面図が、図7に図6の要部拡大図として、係合面部に弾性体が付着される場合の図(a)と係合面部を傾斜面にされる場合の図(b)が、それぞれ示されている。
【0039】
この実施例の包装用紙装着機構10Bは、ロール紙芯管12Bに設けられる摩擦係合手段11Bとして、その芯管12Bの端部に複数箇所(実施例では4箇所)に軸心に向けて係止突片25が等分して突設され、既存巻芯6の端部の外側から係合して装着できるようにされたものである。
【0040】
この実施例の芯管12Bの外形については、前記係止突片25形成部を除いて前記実施例のものと同一である。係止突片25は、対象とする既存巻芯6の端部6aにおける内周面より突き出る程度の寸法で軸心方向に突出させて設けられ、その軸線に沿った内側で切込み26が形成されて鉤型に形成され、その鉤型をした部分の外周方向を向いた面を係合面部27とされたものである。その係合面部27は、想定される既存巻芯6の端部6aの内端周部に接触できるように形成される。
【0041】
前記係止突片25における係合面部27としては、例えば図7(a)に示されるようにゴム質の弾性材にてなる係止片28を切込み26の開口側からその内部奥まで上面を、開口側よりも内部奥が高くなるように傾斜させて鉤型部分の接着し、係合摩擦力を高めるようにするのがよい。このようにされた係止突片25を備える芯管12Bは既存巻芯6に被嵌装着する際、その端部に設けられる係止突片25の係合面部27が既存巻芯6の端部6a内側に挿入されるようにして当接させる。すると、複数の係止突片25の各係合面部27が一斉の既存巻芯6の端部6aに接触して、それら係合面部27に付された弾性材にてなる係止片28との接触で、静止する状態まで移動させることにより、弾性体にてなる係止片28によって強力に弾性保持され、軸心を一にすると同時に係合保持される。したがって、共通ロール紙5は既存巻芯6を介して支持軸体上で円滑に回転できて給紙できるのである。
【0042】
前記係止突片25の係合面部27を前記のように切込み26の開口側に下がり勾配の傾斜面29とした場合(図7(b)参照)においては、複数等分して配設される各係止突片25を一斉に、前記のように弾性体を備えないがその傾斜面29と既存巻芯6の端部6aとの接触によって保持させて、同様に機能させることができる。この場合も、各係止突片25の傾斜面29における接触位置で芯管と既存巻芯の寸法差を調整できる。
【0043】
これら芯管12Bの端部に複数の係止突片25を設ける形式においては、片持ち構造となるので、その安定性をより確実にするのに、芯管12Bの反対端部内周に前述の弾性体による突起条もしくは突起を適宜配分で設けておけば、有効である。
【0044】
また、このような係止突片25を端部に設ける形式の場合、既存巻芯との嵌め合い部の寸法差が僅少で端部に切込みがある場合、その各係止突片25を既存巻芯の端部に設けられた切込みに嵌め合わすことで係合させることもできる。
【図面の簡単な説明】
【図1】図1は、本発明に係る薬剤分包機の包装用紙装着機構の要部を表わす図である。
【図2】図2は、図1のA−A視断面図である。
【図3】図3は、係止バネの拡大断面図(a)および一部側面図(b)である。
【図4】図4は、摩擦係合手段の他の実施例を示す断面図である。
【図5】図5は、アタッチメントを用いない場合の共通ロール紙芯管に設けられた摩擦係合手段の実施例を示す図で、縦断面図(a)およびB−B視断面図(b)である。
【図6】図6は、ロール紙芯管の端部に摩擦係合手段を設けられた実施例を示す断面図である。
【図7】図7は、図6の要部拡大図で、係合面部に弾性体が付着される場合の図(a)および係合面部を傾斜面にされる場合の図(b)である。
【符号の説明】
1 薬剤分包機の給紙部
2 ロール紙の取付軸
5 共通ロール紙
6 既存巻芯
10,10B 包装用紙装着機構
11,11A,11B 摩擦係合手段
12,12A,12B 芯管
12a 芯管の内周面
13 突起条
15 アタッチメント
16 溝条
17 板バネ
17a 板バネの端部
18 透かし穴
19 弾性摩擦片
19a リップ部
20 弾性体にてなる突起条
25 係止突片
26 切込み
27 係合面部
28 弾性体でなる係止片
29 傾斜面
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a mounting mechanism for a roll-wrapped packaging paper used in a medicine packaging machine mainly used in hospitals, clinics, and the like. The present invention relates to a packaging paper mounting mechanism of a medicine packaging machine that enables a common packaging paper to be mounted and used.
[0002]
[Prior art]
Conventionally, wrapping paper used in a medicine packaging machine that dispenses and packages medications to patients in hospitals and clinics is a continuous paper roll of a predetermined width (hereinafter simply referred to as roll paper). The support shaft body in the paper feeder of the packaging machine can be loaded and used. For this purpose, the roll paper for packaging has a core tube for facilitating the loading of the support shaft body and for facilitating the operation when winding the roll paper in a predetermined amount. An inner diameter and a length dimension are adjusted so that the core tube is adapted to the support shaft body of the paper feeding unit.
[0003]
In order to load the roll paper into the support shaft body in the paper feeding unit of the packaging machine and smoothly feed it out, the end of the roll paper is supported on one end portion of the roll paper and is projected in the radial direction on the rotatable support shaft body. The locking pin is engaged with a notch provided in the core tube. An example of this is known from Japanese Utility Model Publication No. 56-44757. In addition, a permanent magnet is attached to one end of a cylindrical body that is rotatably supported on a support shaft, and a roll paper wound around a core tube having a ferromagnetic plate that is attracted to the permanent magnet is loaded. Japanese Utility Model Laid-Open No. 59-116340 discloses a technique that allows the sheet to be smoothly rotated and fed on a support shaft by the attractive force between the ferromagnetic plate on the core tube side and the permanent magnet on the cylinder side. ing.
[0004]
[Problems to be solved by the invention]
Normally, the roll paper has a support structure in the paper feeding unit of the packaging machine that varies depending on the machine maker as described above. Has been. Therefore, for example, in a hospital with a large amount of dispensing, a plurality of medicine packaging machines are used, and the packaging paper is naturally consumed in large quantities. For this reason, when the manufacturers of the packaging machines to be used are not unified, roll papers with different core pipes must be prepared and placed.
[0005]
If the type of roll paper used is biased and consumed, there will be inconvenience that the paper feeding unit will not match during use. In order to prevent such a situation from occurring, it is necessary to always have more stock than necessary, and there arises a problem that excessive expenses are required. In addition, the roll paper that is used is generally laminated with polyethylene resin on one side of glassine paper, but the glassine paper is easy to dry and has low stickiness and is easy to tear. However, there is a problem in that it becomes unusable due to damage at the end, and it is not preferable to own a lot of stock.
[0006]
The present invention has been made to solve such problems, and roll paper is commonly used even if the outer diameter size and engaging means of the support shaft body in the paper feeding unit of the packaging machine used are different. An object of the present invention is to provide a packaging paper mounting mechanism of a medicine packaging machine that can be used.
[0007]
[Means for solving the problems and actions / effects]
To achieve the above purpose, the packaging material mounting mechanism of medicine packing machine according to the present invention, the first,
The existing core and the roll paper core tube can be rotated by being fitted on the existing core core as a core tube unique to each medicine packaging machine mounted on the support shaft that supports the roll paper core tube for packaging. A packaging paper mounting mechanism of a medicine packaging machine comprising friction engagement means,
The friction engagement means has a plurality of elastic bodies provided on the inner peripheral surface of the roll paper core tube .
[0008]
In the present invention configured as described above, the inner diameter of the roll paper core tube of the continuous wrapping paper to be supplied is larger than the outer diameter of the largest roll core (core tube) of the existing roll paper for packaging machines. as also large dimensions, the friction engagement means having a plurality of elastic bodies acting elastic force in the axial direction therein are provided, the respective support shaft of the packing machine paper feeding unit medicine packing machine When an existing core as a specific core tube is installed and a new roll paper is loaded on the existing core, the friction engagement means provided inside the roll paper core tube is attached to the surface of the existing core. it can be the engage frictionally, rotatably supporting the roll paper core tube to the support shaft through the existing core.
[0009]
According to the present invention, it is possible to automatically adjust the dimensional difference between the inner diameter portion of the existing winding core outer diameter and the roll paper core tube by frictional engagement means provided inside the core tube, different packing machine paper feeding section dimensions Therefore, it is possible to provide a continuous wrapping paper that can be used in common in accordance with the support portion, and it is possible to improve the economy.
[0014]
In the present invention, the elastic body is preferably provided in the axial direction of the roll paper core tube. The elastic body may be a leaf spring having a friction layer on the contact surface. Further, the elastic body may be between elastic material plural rows Sheng attached is foam or soft to Sujijo in the axial direction of the roll paper core tube. With such a configuration, when the dimensional difference between the outer diameter and the inner diameter of the paper roll core tube of existing core is small, it can be left attached directly frictional engagement means on the roll paper core tube Thus, it is possible to load paper feeding units having different dimensions without using an attachment. When the roll paper is loaded on the support shaft (existing core) of the paper feeding unit, the resistance of the elastic body is small in the axial direction. When the paper is fed out, a large amount of resistance is generated in the circumferential direction (width direction) to prevent slippage in the loading unit, and the paper can be smoothly rotated and fed out normally. Further, since the friction engagement means has a simple configuration, it can be provided without greatly increasing the cost. In addition, you may make it provide the said elastic material interspersed.
[0015]
Moreover, the packaging paper mounting mechanism of the medicine packaging machine according to the present invention is secondly,
The existing core and the roll paper core tube can be rotated by being fitted on the existing core core as a core tube unique to each medicine packaging machine mounted on the support shaft that supports the roll paper core tube for packaging. A packaging paper mounting mechanism of a medicine packaging machine comprising friction engagement means,
The friction engagement means may be protruded more than the axial direction of the roll paper core tube to the end of the roll paper core tube, cut along the axis inside the ends are formed hook It has a locking protrusion, in which the engagement surface portion facing the notch of this locking protrusion is characterized by being configured to engage the end of the existing core . Here, it is preferable that an elastic body is attached to the engagement surface portion . Further, the engaging surface portion, it is preferable formed on the inclined surface of the slope down toward the opening side of the cut.
[0016]
In this way, if the protrusions are provided at a plurality of locations as friction engagement means at the end of the roll paper core tube, direct friction or indirect friction with respect to the outer peripheral surface of the existing core is provided. With the fitting engagement different from the engagement by force, the roll paper core tube is supported on the support shaft body via the existing winding core and can be fed. In this case, the roll paper core tube incisions provided on the inner side of the end portion a plurality of locking projecting pieces projecting from the inside, the existing winding core proximal end to put way the existing core By bringing the engagement surface portion facing the notch of the locking projection piece into contact with the inner end portion, both can be held by contact friction between the engagement surface portion and the inner end portion of the existing core.
[0017]
At this time, if an elastic body is attached to the engaging surface portion, the frictional force can be further increased, and the difference in aperture can be automatically adjusted by elastic deformation of the elastic body. Alternatively, if the engaging surface portion is formed on an inclined surface having a downward slope toward the opening side of the notch , the frictional force can be increased by the gradient and the aperture difference can be automatically adjusted. Such a method is more effective when the aperture difference is small. Of course, this type can be used in combination with a protrusion made of an elastic body on a part of the inner peripheral surface of the core tube.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Next, a specific embodiment of the packaging paper mounting mechanism of the medicine packaging machine according to the present invention will be described with reference to the drawings.
[0019]
FIG. 1 is a view showing a main part of a packaging paper mounting mechanism of a medicine packaging machine according to the present invention, FIG. 2 is a sectional view taken along line AA of FIG. 1, and FIG. 3 is an enlarged sectional view (a) of a locking spring. And a partial side view (b) is shown respectively.
[0020]
A roll paper attachment shaft 2 is provided in a continuous packaging paper (roll paper) feeder 1 in the medicine packaging machine, and a core tube portion around which the roll paper 5 is wound is fitted on the attachment shaft 2. Can be installed.
[0021]
The packaging paper loading mechanism 10 of the present embodiment uses a roll paper 5 (which is used although the dimensions of the roll paper mounting shaft 2 in the paper feeder 1 in the medicine packaging machine are different depending on the manufacturer of the medicine packaging machine. Paying attention to the fact that the dimensions (in this case, width dimensions) of the continuous wrapping paper are almost the same, they are used in common regardless of the dimensions of the mounting shaft 2 in the paper feeder 1 of the medicine packaging machine. It is the structure of enabling it to do. For this purpose, a roll paper core tube unique to each medicine packaging machine is directly attached to the attachment shaft 2 in the paper supply unit 1, and the wrapping paper is mounted on the attachment shaft 2 with the friction engagement means 11 of this embodiment. A roll paper 5 (hereinafter referred to as a common roll paper 5) is mounted by the mechanism 10 so that it can be used.
[0022]
The friction engagement means 11 in the wrapping paper mounting mechanism 10 of this embodiment is roughly divided into the diameter of the core tube (hereinafter referred to as the existing core 6 to distinguish the existing core tube) and the common roll in various existing roll papers. In the case of the former, a method using an attachment is adopted, and in the latter case, the direct functioning is performed, depending on whether the dimensional difference from the inner diameter of the core tube 12 of the paper 5 is large or not. The method is adopted.
First, the case where an attachment is used will be described. The core tube 12 of the common roll paper 5 of this embodiment has an inner diameter dimension larger than the diameter of the existing core 6, and a plurality of protrusions 13 are equally divided on the inner peripheral surface 12a and provided along the axis. It has been. And the attachment 15 which attaches the dimension difference with the existing core 6 in the core tube 12, and can be mounted | worn is attached so that attachment or detachment is possible.
[0023]
The attachment 15 is engraved on the outer peripheral surface of the main body 15a with a corresponding number of equal number of grooves 16 that engage with the protrusions 13 protruding from the inner peripheral surface 12a of the core tube 12. The leaf springs 17 for locking (corresponding to the elastic body in the present invention) are equally arranged between the grooves 16 forming portions along the axis. As shown in FIG. 3, the leaf spring 17 is bent outward at both ends 17 a (only one side is shown in the figure) and through the open hole 18 provided in the main body 15 a of the attachment 15. So that it protrudes in the axial direction of the core tube 12. The watermark hole 18 is formed into an elongated hole so that the end 17a of the leaf spring 17 to be inserted is movable in the axial direction.
[0024]
An elastic friction piece 19 made of a rubber material is integrally attached to an intermediate portion of the plate spring 17 on the side in contact with the core 6, and the elastic friction piece 19 is arranged in the width direction of the plate spring 17. Lips 19a, 19a are formed by extending the part.
[0025]
The wrapping paper mounting mechanism 10 of the present embodiment configured as described above is configured such that the existing core 6 unique to the machine is mounted in advance on the roll paper mounting shaft 2 in the paper feeding unit 1 to be used, and the attachment The groove 16 is fitted and mounted in the core tube 12 of the common roll paper 15 using the protrusion 13. Thereafter, the common roll paper 5 is attached to the existing core 6.
[0026]
When the common roll paper 5 is loaded onto the roll paper mounting shaft 2 to which the existing core 6 is attached, the leaf spring 17 attached to the attachment 15 inserted therein is attached to the outer peripheral surface of the existing core 6 from the periphery. It contacts and is pushed back outward so as to have a dimension corresponding to the outer diameter of the existing core 6. Then, since each leaf spring 17 is positioned and movable at the outer peripheral side of the attachment 15 at both ends, it resists elasticity at the bent portion 17b as it is pushed by the outer surface of the existing core 6. Then, the portion is deformed and displaced in the radial direction, and the portion projecting inside the attachment 15 of the leaf spring 17 is strongly pressed against the peripheral surface of the existing core 6 by the reaction force. In other words, the leaf spring 17 presses and stretches the existing core 6 from four directions. Due to this stretching, the dimensional difference with respect to the shaft diameter at the mounting portion is automatically adjusted. Both end portions 17a and 17a of the plate spring 17 are pressed by the inner peripheral surface 12a of the core tube 12 of the common roll paper 5, and the elasticity of the plate spring 17 is maintained.
[0027]
Therefore, the common roll paper 5 loaded on the existing core 6 is held concentrically with respect to the mounting shaft 2. Each leaf spring 17 is integrally attached with an elastic friction piece 19, and this elastic friction piece 19 is provided with lip portions 19 a and 19 a by extending a part in the width direction of the leaf spring 17. Therefore, when a tension force is generated as described above, the friction force on the contact surface is increased by extending along the peripheral surface of the existing core 6. As a result, when the roll paper starts to rotate in the feed-out direction, the existing core 6 and the attachment 15 that are integrally attached to the attachment shaft 2 are integrated, and the attachment 15 and the core tube 12 are protruded. 13 and the groove 16 are integrated with each other, so that they are supported by the mounting shaft 2 as a whole and rotated to enable smooth paper feeding.
[0028]
And when attaching the core tube 12 of the common roll paper 5 to the existing winding core 6, since the plurality of leaf springs 17 attached to the attachment 15 are narrow in width, The accompanying axial frictional force is remarkably smaller than the circumferential frictional force, so insertion and extraction operations can be carried out without difficulty.
[0029]
According to the wrapping paper mounting mechanism 10 of the present embodiment, even if there is a large dimensional difference between the core tube 12 of the common roll paper 5 and the existing core 6, the attachment 15 is interposed, The friction engagement means 11 using the attached leaf spring 17 can be automatically adjusted and attached without difficulty. Therefore, it is possible to employ a common roll paper for the paper feeding unit in various drug packaging machines having dimensional differences.
[0030]
In addition, as for the engagement structure between the attachment 15 and the core tube 12 of the common roll paper 5, the core tube 12 requires a special structure in the engagement structure between the protrusion and the groove as described above. As shown in FIG. 4, the inner surface of the core tube is a normal circumferential surface. As shown in FIG. 4, a leaf spring 17 'similar to the leaf spring 17 is equally divided outwardly into the attachment 15A. May be arranged. In this way, when the attachment 15A is inserted into the core tube 12 of the common roll paper 5, the outward leaf spring 17 'acts and is locked in the same manner as the inward leaf spring 17 with respect to the aforementioned existing core 6, In this state, it can be attached to the existing core 6 on the mounting shaft 2.
[0031]
Although not shown in the drawings, instead of the leaf spring 17, an elastic body made of resin having elasticity is incorporated into the attachment at a plurality of locations to cope with a dimensional difference from the mounting core outer diameter and at the time of mounting. A locking force can be obtained.
[0032]
Next, the figure which shows the Example of the friction engagement means provided in the common roll paper core pipe at the time of not using an attachment in FIG. 5 is shown by the longitudinal cross-sectional view (a) and the BB view sectional drawing. Yes.
[0033]
The frictional engagement means 11A shown in FIG. 5 has protrusions 20 made of an elastic material (for example, urethane, foamed polyurethane, soft vinyl, rubber) on the inner peripheral surface 12a of the core tube 12A of the common roll paper 5 in a plurality of axial directions. It is attached to and disposed on.
[0034]
According to the friction engagement means 11A of the embodiment configured as described above, when the dimensional difference between the inner diameter D of the core tube 12A of the common roll paper 5 and the outer diameter d of the existing core 6 is small, the friction tube is attached to the core tube 12A. While adjusting the dimensional difference between the protrusions 20 made of an elastic body, the common roll paper 5 is attached to the mounting shaft 2 side by contact frictional resistance between the protrusions 20 and the peripheral surface of the existing core 6. Are attached while being engaged, and the wrapping paper can be smoothly fed out.
[0035]
At this time, when the common roll paper 5 is mounted, the protrusions 20 attached to the core tube 12A side are attached to the existing core 6 in the axial direction, so that it can be mounted without receiving a large resistance. In addition, by arranging the plurality of protrusions 20 equally, the axes can be automatically matched at the time of mounting. And since the said protruding item | line 20 is contact-contacting in the wide range in the width direction with respect to the surrounding surface of the existing winding core 6 currently fixed on the attachment axis | shaft 2, a big frictional force acts and it exists. The winding core 6 and the core tube 12A are integrally coupled and rotate together to achieve the object.
[0036]
It should be noted that the protrusions 20 by the elastic body have many types of dimensional differences between the core tube 12A of the common roll paper 5 to be mounted by using a foamed elastic body and the existing core 6, for example. Correspondingly, there is an advantage that the mounting dimension difference can be automatically adjusted. Moreover, if the frictional engagement means 11A is provided on the core tube 12A of the common roll paper 5 in this way, an additional attachment or the like is not required, so that handling is convenient. In addition, with such a simple configuration, the effect of minimizing the cost increase and improving the economic efficiency can be obtained.
[0037]
In addition, you may make it provide the protrusion 20 by the elastic body in the said friction engagement means 11A helically. In this way, the circumferential frictional resistance can be increased. Moreover, you may make it adhere with the said elastic body interspersed as needed.
[0038]
Furthermore, as another embodiment, FIG. 6 is a sectional view showing an embodiment in which friction engagement means is provided at the end of the roll paper core tube, and FIG. 7 is an enlarged view of the main part of FIG. The figure (a) in the case of attaching an elastic body to the figure and the figure (b) in the case where the engaging surface portion is inclined are shown.
[0039]
The wrapping paper mounting mechanism 10B of this embodiment is a friction engagement means 11B provided on the roll paper core tube 12B, and is engaged with a plurality of locations (four locations in the embodiment) toward the axis at the end of the core tube 12B. A stop projection piece 25 is provided in an equally divided manner so that it can be engaged and mounted from the outside of the end of the existing core 6.
[0040]
The outer shape of the core tube 12B of this embodiment is the same as that of the above-described embodiment except for the engagement protrusion 25 forming portion. The locking protrusion 25 is provided so as to protrude in the axial direction with a size that protrudes from the inner peripheral surface of the end 6a of the existing core 6 as a target, and a cut 26 is formed on the inner side along the axis. The surface that is formed in a bowl shape and faces the outer peripheral direction of the bowl-shaped portion is the engagement surface portion 27. The engaging surface portion 27 is formed so as to be able to contact the inner end peripheral portion of the end 6 a of the existing core 6 that is assumed.
[0041]
As the engagement surface portion 27 in the engagement protrusion 25, for example, as shown in FIG. 7A, an engagement piece 28 made of a rubber-like elastic material is provided on the upper surface from the opening side of the cut 26 to the inner back thereof. It is preferable to incline so that the inner depth is higher than the opening side to bond the saddle-shaped portion and increase the engagement frictional force. When the core tube 12 </ b> B including the locking protrusions 25 thus configured is fitted and attached to the existing core 6, the engagement surface portion 27 of the locking protrusion 25 provided at the end thereof is the end of the existing core 6. It is made to contact | abut so that it may be inserted inside the part 6a. Then, the engaging surface portions 27 of the plurality of engaging protrusions 25 come into contact with the end portions 6a of the existing core 6 at the same time, and the engaging pieces 28 made of an elastic material attached to the engaging surface portions 27 and By being moved to a stationary state by contact, the elastic pieces are strongly elastically held by the locking pieces 28, and the shafts are made to be engaged and held at the same time. Therefore, the common roll paper 5 can be smoothly fed on the support shaft body via the existing core 6 and fed.
[0042]
In the case where the engaging surface portion 27 of the locking protrusion 25 is an inclined surface 29 having a downward slope toward the opening side of the notch 26 as described above (see FIG. 7B), it is divided into a plurality of equal parts. The locking protrusions 25 are not provided with an elastic body as described above, but can be held in contact with the inclined surface 29 and the end 6a of the existing core 6 to function in the same manner. Also in this case, the dimensional difference between the core tube and the existing core can be adjusted at the contact position on the inclined surface 29 of each locking protrusion 25.
[0043]
In the type in which the plurality of locking protrusions 25 are provided at the end portions of the core tube 12B, a cantilever structure is used. Therefore, in order to make the stability more reliable, the inner periphery of the opposite end portion of the core tube 12B has the above-described structure. It is effective to provide protrusions or protrusions by an elastic body with appropriate distribution.
[0044]
Further, in the case of such a type in which the locking protrusions 25 are provided at the end portions, when the dimensional difference of the fitting portion with the existing core is small and the end portions are notched, each of the locking protrusion pieces 25 is provided in the existing portion. It can also be engaged by fitting in the notch provided in the edge part of the core.
[Brief description of the drawings]
FIG. 1 is a diagram showing a main part of a packaging paper mounting mechanism of a medicine packaging machine according to the present invention.
FIG. 2 is a cross-sectional view taken along the line AA of FIG.
FIG. 3 is an enlarged cross-sectional view (a) and a partial side view (b) of a locking spring.
FIG. 4 is a cross-sectional view showing another embodiment of the friction engagement means.
FIG. 5 is a diagram showing an example of friction engagement means provided in a common roll paper core tube when no attachment is used, and is a longitudinal sectional view (a) and a sectional view taken along line BB (b). ).
FIG. 6 is a cross-sectional view showing an embodiment in which friction engagement means is provided at the end of the roll paper core tube.
7 is an enlarged view of a main part of FIG. 6, and is a view in which an elastic body is attached to the engaging surface portion and a view in which the engaging surface portion is inclined (b). is there.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Paper supply part of chemical | medical agent packaging machine 2 Roll paper attachment shaft 5 Common roll paper 6 Existing core 10, 10B Packaging paper loading mechanism 11, 11A, 11B Friction engagement means 12, 12A, 12B Core tube 12a Inside of core tube Peripheral surface 13 Projection strip 15 Attachment 16 Groove strip 17 Plate spring 17a End portion 18 of plate spring Open hole 19 Elastic friction piece 19a Lip portion 20 Projection strip 25 made of elastic body Locking projection piece 26 Notch 27 Engagement surface portion 28 Elasticity Locking piece 29 made of body Inclined surface

Claims (7)

包装用のロール紙芯管を支持する支持軸上に装着されるそれぞれの薬剤分包機特有の芯管としての既存巻芯に被嵌させて、前記既存巻芯とロール紙芯管をともに回転可能にする摩擦係合手段を備える薬剤分包機の包装用紙装着機構であって、
前記摩擦係合手段は、前記ロール紙芯管の内周面に設けられる複数の弾性体を有していることを特徴とする薬剤分包機の包装用紙装着機構。
The existing core and the roll paper core tube can be rotated by being fitted on the existing core core as a core tube unique to each medicine packaging machine mounted on the support shaft that supports the roll paper core tube for packaging. A packaging paper mounting mechanism of a medicine packaging machine comprising friction engagement means,
The wrapping paper mounting mechanism of a medicine packaging machine, wherein the friction engagement means has a plurality of elastic bodies provided on an inner peripheral surface of the roll paper core tube .
前記弾性体は、前記ロール紙芯管の軸線方向に設けられている請求項1に記載の薬剤分包機の包装用紙装着機構。The packaging paper mounting mechanism of the medicine packaging machine according to claim 1, wherein the elastic body is provided in an axial direction of the roll paper core tube . 前記弾性体は、接触面に摩擦層を備える板バネである請求項1または2に記載の薬剤分包機の包装用紙装着機構。The packaging paper mounting mechanism for a medicine packaging machine according to claim 1 or 2 , wherein the elastic body is a leaf spring having a friction layer on a contact surface. 前記弾性体は、前記ロール紙芯管の軸線方向に筋条に複数条盛付けられる発泡材もしくは軟質の弾性材である請求項1または2に記載の薬剤分包機の包装用紙装着機構。 The elastic body, medicine packing machine packaging material mounting mechanism according to claim 1 or 2 which is an elastic material of plural rows Sheng attached is foam or soft to Sujijo in the axial direction of the roll paper core tube. 包装用のロール紙芯管を支持する支持軸上に装着されるそれぞれの薬剤分包機特有の芯管としての既存巻芯に被嵌させて、前記既存巻芯とロール紙芯管をともに回転可能にする摩擦係合手段を備える薬剤分包機の包装用紙装着機構であって、
前記摩擦係合手段は、前記ロール紙芯管の端部に前記ロール紙芯管の軸心方向に突出されるとともに、その端部の内側に軸線に沿った切込みが形成された鉤型の係止突片を有し係止突片の前記切込みに面する係合面部が前記既存巻芯の端部と係合するように構成されていることを特徴とする薬剤分包機の包装用紙装着機構。
The existing core and the roll paper core tube can be rotated by being fitted on the existing core core as a core tube unique to each medicine packaging machine mounted on the support shaft that supports the roll paper core tube for packaging. A packaging paper mounting mechanism of a medicine packaging machine comprising friction engagement means,
The friction engagement means may be protruded more than the axial direction of the roll paper wick tube to the end of the roll paper wick tube, cut along the axis on the inside of the end portion is formed hook of having a locking protrusion, medicine packing machine, characterized in that the engagement surface portion facing the notch of this locking protrusion is configured to engage the end of the existing core Wrapping paper mounting mechanism.
前記係合面部には弾性体が付されている請求項に記載の薬剤分包機の包装用紙装着機構。The packaging paper mounting mechanism of the medicine packaging machine according to claim 5 , wherein the engaging surface portion is provided with an elastic body. 前記係合面部は、前記切込みの開口側に向けて下がり勾配の傾斜面に形成されている請求項5または6に記載の薬剤分包機の包装用紙装着機構。 The engaging surface portion, medicine packing machine packaging material mounting mechanism according to claim 5 or 6 is formed on the inclined surface of the slope down toward the opening side of the cut.
JP33596599A 1999-11-26 1999-11-26 Packing paper loading mechanism of medicine packaging machine Expired - Lifetime JP3649976B2 (en)

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Related Child Applications (4)

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JP2004189688A Division JP3650106B2 (en) 2004-06-28 2004-06-28 Attachment for roll paper core tube
JP2004291036A Division JP4359217B2 (en) 2004-10-04 2004-10-04 Packing paper loading mechanism of medicine packaging machine
JP2005014215A Division JP3798798B2 (en) 2005-01-21 2005-01-21 Attachment for roll paper core tube
JP2005014214A Division JP4359247B2 (en) 2005-01-21 2005-01-21 Packing paper loading mechanism of medicine packaging machine

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US7770355B2 (en) * 2002-09-27 2010-08-10 Sanyo Electric Co., Ltd. Medicine feeding device

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