JP3935536B2 - Pouch spout - Google Patents

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Publication number
JP3935536B2
JP3935536B2 JP29591196A JP29591196A JP3935536B2 JP 3935536 B2 JP3935536 B2 JP 3935536B2 JP 29591196 A JP29591196 A JP 29591196A JP 29591196 A JP29591196 A JP 29591196A JP 3935536 B2 JP3935536 B2 JP 3935536B2
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spout
pouch
flange portion
boat
lid
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JPH10120000A (en
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裕 植松
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Dai Nippon Printing Co Ltd
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Dai Nippon Printing Co Ltd
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Description

【0001】
【発明の属する技術分野】
本発明は、液体を収納するパウチの辺縁部の2辺間に挟着される蓋付き注出口に関するものである。
【0002】
【従来の技術】
これまで知られているバッグインボックスには、内部のパウチに注出口が取付けられているが、この注出口は、注出口筒をパウチに設けられた透孔より外方に突出させるとともに、注出口筒の下端部に形成したフランジ部を孔縁の内面に当接し、これを接着剤、熱、超音波等でパウチの内面に接着していた。
また、従来技術による種々のパウチ、例えば、平袋、自立袋(スタンド型)、ガセットパウチなどに、ジュース等を収納し、前記パウチの辺縁部に吸引部を有する注出口を装着してなる注出口付パウチは、前記注出口がパウチの辺縁に装着されているが、パウチの内部に達する延長部が存在しないために、使用者が内容物を吸引する際、パウチが閉塞して吸引ができなくなる場合があった。上記のバッグインボックスのようなパウチ等に取付けた注出口筒の下部に設けたフランジ部をもって、パウチの内面の孔縁に接着するものであるから、パウチ等の辺縁部に取付けることについては何も配慮されていなかった。
また、注出口本体と蓋体とが別体として成形され、注出口本体に蓋体が螺着されるまでの間に、工程間の移動、また、成形する工場と螺着する工場が違う場合の移動における注出口本体の丸筒部の最上面に傷がつくことにより、蓋体のコンタクトリングがこの最上面に密着されても前記傷の存在のために液体密封性が得られないことがあった。
【0003】
【発明が解決しようとする課題】
本発明は、パウチ等の辺縁部に取付けることができる注出口で、その目的とするところは、パウチ等の辺縁部に対する確実な挟着による液体密封性、また、注出口本体と蓋体との螺着時の液体密封性を得ること、および内容物の吸引の際に前記パウチにおいて閉塞状態を引き起こさないパウチ用注出口の構造に関する技術を提供する。
【0004】
【課題を解決する手段】
細長の舟形状のフランジ部に対し、その一方側に、パウチ本体の内側に取付けられ、パウチ内部に延長されるリブを具備した接着基部を、また他方側にパウチ装着時にパウチの外側にある注出口筒部からなる注出口本体と注出口筒部に螺着可能な蓋体からなる注出口の、前記丸筒部を形成する壁の天面は、その外面側を高く、内面側を低く成形した2段構造であり、前記筒部螺条に螺着する蓋の天板の内面に、前記丸筒部の2段構造天面の内面側の低い面に密着するコンタクトリングを設けたパウチ用注出口であって、さらに、次の各発明を含む。すなわち、細長の舟形状のフランジ部に設けた前記接着基部はパウチの2辺間にあって2辺が接着し易くして液体密封性が保てるようにした底面視においてシャトル形状であること、また、前記注出口筒部の中間部に第2のフランジを設け、該第2のフランジ部よりも開口部側を外周面に螺条を有する丸筒状とし、また、舟形状のフランジ部側を角筒状とすること、前記第2のフランジ部と前記舟形状のフランジ部との間に、前記第2のフランジ部よりも大きな径を有する第3のフランジ部を設けたこと、前記接着基部にはパウチ内に延長されるリブが形成され、または前記パウチ内に延長されるリブが別体として成形されて前記接着基部に接続されること、及び前記蓋体は、合成樹脂にて成形されたもので、注出口本体よりもわずかに剛性、または注出口本体よりもわずかに柔軟にして、外面には螺着脱の際に摘み易いように条溝を形成したことである。
【0005】
【発明の実施の形態】
本発明は、ジュース等を収納し、使用者が注出口に口をつけて内容物を吸引するタイプ、あるいは、医薬品、洗浄剤、インク等を包装するスタンド型、ガセット型等のパウチ等、又は平パウチ等の辺縁部、隅角部をカットした部分に対し2辺間に挟着される蓋付き注出口であり、注出口本体と蓋体とから構成され、前記注出口と蓋体はそれぞれ別体からなるものである。ただし、前記注出口本体に閉塞防止用に延長部リブを設ける場合、延長部リブは別に成形して注出口本体の接着基部に接続する方式であってもよい。いずれもポリエチレン、ポリプロピレン等の樹脂にて成形されたものである。
本発明の主要な目的である注出口本体と蓋体との螺合による液体密封性を阻害する要因の一つとして、注出口本体の開口部天面が、成形時から内容物を充填後に蓋体を螺着するまでの間に傷つくことがあり、注出口本体の開口部と蓋体の天板の内面のコンタクトリングにより行われるが、前記の傷のために、完全な液体密封性に欠けることがあった。例えば、注出口本体と蓋体とを別々に成形し、内容物を充填後のキャッピング工程までの間、振動衝撃を受けた場合に、特に注出口本体の開口部天面に傷がつき、凹凸面となり、蓋体に設けたコンタクトリングを前記天面に密着させても、完全な液体密封性が得られないことがある。
そこで、本発明者は、前記注出口本体の開口部と蓋体の天板の内面との形状、使用素材等を研究した結果、後述のような所期の目的に適合した注出口を得ることができた。
【0006】
前記注出口本体は、細長の舟形状のフランジ部に対し、その一方側に、パウチ本体の内側に取付けられる接着基部、また他方側にパウチの外側にある注出口筒部からなる。以下本発明の実施例を図面等により具体的に説明する。
【0007】
【実施例】
図1は、本発明のパウチ用注出口の実施例を示す斜視図、図2は、注出口本体の正面図(2−1)、蓋体の螺着を示す一部断面を含む正面図(2−2)、図2(2−2)のP部分拡大図(2−3)、注出口本体の底面図(2−4)、図3は、図2(2−1)の一部断面を含む部分拡大図(3−1)、図2(2−1)のそれぞれX−X部下面図(3−2)、Y−Y部上面図(3−3)及びZ−Z部断面図(3−4)、図4は、注出口本体をパウチに接合した状態の説明図(4−1)、図4(4−1)のW−W部断面図(4−2)、図5は、注出口筒部と蓋体とのシュリンクについての説明図、図6は、従来技術による液体密封性の構造例を示す概念図である。
【0008】
本発明のパウチ用注出口を装着するパウチの材質形状は、内容物の種類、或いは容量等により設計される。本発明のパウチ用注出口を適用するパウチは、使用者が注出口に口をつけて吸引するタイプで、収納する内容物の量としては、100 〜500 グラム、最もよく計画される内容量は、200 〜300 グラムである。
また、パウチCの形状としては、一般的に前記スタンド型やガセット型が多用され、それらの材質は、紙、プラスチックフィルム、金属箔等の素材、また、これらの素材に物性改良の目的で、他の素材を塗布し、蒸着等による加工を施し、または施されたものを用い、それぞれの単体あるいはこれらを積層した材料が用いられる。
【0009】
基本的なパウチCの材質構成としては基材、内容物保護のためのバリヤー材、ヒートシール性を有する内面材から構成されることが多い。
基材としては、印刷適性、強度、耐熱性等を有する素材から選択され、各種薄紙、ポリプロピレン、ポリエステル、ポリアミド等の樹脂を製膜してなる好ましくは延伸されたフィルム、また、バリヤー材としては、ポリビニルアルコール樹脂を製膜してなるフィルム、エチレン−酢酸ビニル共重合体のけん化物からなる樹脂を製膜してなるフィルム等のバリヤーフィルム、アルミニウム等の金属箔や前記各種のフィルムに塩化ビニリデン等の防湿コートを施したもの、または、バリヤー材として別のフィルムとせず、基材フィルムに直接に金属単体あるいは珪素やアルミニウム等の酸化物等を蒸着したフィルムを用いてもよい。
また、ヒートシール材としては、内容物の味覚等に支障を及ぼすおそれがなく、パウチとしての必要強度を有する材質を選定する。例えば、低密度ポリエチレン、直鎖状低密度ポリエチレン、メタロセン触媒を用いて重合したポリオレフィン、エチレン−酢酸ビニル共重合体等を挙げることができる。
ただし、ヒートシール層を構成する材質は、パウチの組立のためのヒートシールであるとともに、注出口本体の接着面への熱接着可能な材質であることが必要であり、注出口本体の材質選定の際に相互接着性を確認する必要がある。
【0010】
本発明は、前述のようにスタンド型、ガセット型等のパウチ等、または平パウチ等の辺縁部、隅角部をカットした部分に対し、2辺間に挟着される蓋付き注出口である。
本発明の注出口本体Aは、前述のように細長の舟形状のフランジ部aと、接着基部bと注出口筒部cとから構成されている。
細長の舟形状のフランジ部aは、平面視において舟形状をなすもので、両側辺面1は、これをパウチC等の接着部に搬送する際にガイド面をなし、長さ方向の端部には、上方に向かう突出2が形成されている。
【0011】
前記舟形状のフランジ部aの一方側には、注出口をパウチCに装着したときパウチCの外側になる注出口筒部cを設け、該注出口筒部cの中間部に第2のフランジ部3を設ける。該第2のフランジ部の辺面は、前記舟形状のフランジ部の両側辺面1と平行する辺面とする。また、前記辺面に対して両側の円弧部分が例えば、多くの直線を連結した円弧状をなした形状でもよい。そして、該第2のフランジ部3より開口部側を丸筒状10とし、その外周面に、蓋体を螺着脱するための螺条12を設ける。
従来技術による注出口と蓋体との液体密封性は、図6に示すように、注出口天面の片側または両側に、蓋体に設けたコンタクトリブ21を密接する(6−1)か、注出口天面にコンタクトリング20を密着し、補助的にコンタクトリブを密接(6−2)したりしていたが、前記天面が傷等により凹凸部があると、液漏れすることがあった。
そこで、本発明においては前記丸筒部の開口部を形成する丸筒部10の天面は図2(2−3)に示すように、その外面側5を高く、内面側6を低くした2段構造とする。
前記2段構造の天面を形成した注出口筒部10に螺着する蓋体Bは、図2(2−3)に示すように、蓋体の天板の内面にコンタクトリング20を設けるが、該コンタクトリング20は、蓋体Bを螺着した場合、前記注出口筒部cの2段構造の天面の内面側の低い面6に密着する位置に設ける。注出口本体Aのみで輸送等された場合、成形品同士が接触しあい、注出口筒部cの天面を傷つけるが、本発明の注出口本体Aにおいては、天面の外側面の高い面5のみが傷つき、天面の内面側の低い面6には傷が付かないので、液体密封性はより完全になる。
【0012】
一方、前記第2のフランジ部3より舟形状のフランジ部a側は、角筒状11とし、かつ、前記第2のフランジ部3と舟形状のフランジ部aとの間に第3のフランジ部4を設ける。前記第3のフランジ部4は、第2のフランジ部3よりも大きな径を有し、その長さ方向は舟形状のフランジ部の長さ方向と同一とする。また、該第3のフランジ部4の平面視での形状は特に限定されず、四角、六角、八角等の多角形、あるいは、円や楕円形であってもよい。本明細書に添付の図面においては、長八角形状として説明している。前記第3のフランジ部4が第2のフランジ部3の径よりも大きな径を必要とするのは、蓋体の未開封を示すために、蓋体Bと前記第2のフランジ部3とを熱収縮フィルム19(以下シュリンクフィルムと記載する)により、図5(5−2)のように、シュリンクによる固定をする場合がある。シュリンクフィルムを予めスリーブ状にシールしておき、前記蓋体Bと第2のフランジ部3とを被覆するが、その際、シュリンクフィルムのスリーブの径は第2のフランジ部3の最大径よりも、僅かに大きな径のスリーブにシールしておくと作業性とシュリンクの仕上がりがよく、また、シュリンクフィルムにより蓋体Bと第2のフランジ部3を被覆するとき、図5(5−1)に示すように前記第3のフランジ部4で位置規制することができる。
なお、本発明のシュリンクフィルム19としては、ポリエチレン、ポリプロピレン、ポリスチレン、ポリ塩化ビニルなどからなる、好ましくは延伸されたフィルムであり、予め、蓋体B及び第2のフランジ3の最大径よりも、僅かに大きな径の円筒状にシール(スリーブ)したものを、図5(2−1)のように注出口筒部cの前記長八角形状フランジ4の上まで被覆し、シュリンクトンネル(加熱炉)を通過させて蓋体と第2のフランジ3とを固定する。シュリンク包装をする目的は、注出口の先端部が埃等により汚染されることを防止し、また、店頭において未開封であること、いわゆる、バージン性の目安となるものである。
【0013】
前記螺条12には、図2(2−1)に示すように注出口筒部cの軸方向に平行な切り欠き14を設けることができる。このような切り欠き14を設ける目的は内容物を充填する工程において、注出口(注入口)部を洗浄するケースがあるが、洗浄水等が前記螺条によって流れず螺条部に滞留することがあったが、この切り欠き14によって、洗浄水が滞留することなく流れるため、前記注出口部の洗浄が効率よく行えるようになった。
【0014】
また、前記舟形状のフランジ部aの角筒部11周縁には前記両端部の突出部2の上面と同じ高さの肉厚部15を設ける。前記肉厚部15はその外形において4角形状をなし、肉厚部15と突出部2との間には溝16が形成される。該溝16は注出口本体AをパウチCに接着する工程あるいは、内容物を充填する前後の工程において、注出口を有するパウチ容器を搬送、また、所定の位置にセットする際のガイドの役目を果たすものである。
第2のフランジ部3から舟形状のフランジ部aまでの筒部11を外形において角筒状とすることによって、該角筒部11が搬送の際に移動のガイド機能として注出口本体Aの方向規制の機能を果たし、パウチCに注出口本体Aを取り付ける工程および包装工程の前後の注出口を有するパウチ容器の搬送および所定位置への前記容器のセッティングが確実になり、その結果、各工程のスピードアップが可能となった。
【0015】
前記細長の舟形状のフランジ部aの他方側には、前述のように接着基部bを設ける。接着基部bは、パウチCの内側にあって辺縁部に対し、2辺間に挟着されるところであり、図2(2−4)に示すように底面視において、シャトル形状をなすもので、注出口筒部cの下方への接着基部bの両側の接着面が形成されており、この接着面はそれぞれの両端部が細長の舟形状のフランジ部aの下部において、接着部として接続している。
【0016】
前記接着基部bには、パウチCと接着した際にパウチ内に延長するリブ8を設けることが望ましい。該リブ8は、前記接着基部bと一体に成形される形状であっても良いし、また、注出口本体Aとは、別体として成形されたものであってもよい。
注出口本体Aの接着基部bからパウチ内に延長するようにして設けられるリブ8は、最終的に、使用者により内容物が吸引されるときに、パウチCが閉塞状態にならないで最後まで吸引を可能とするための機能を示す。
前記リブ8を注出口本体Aの接着基部bに一体に設ける場合は、接着基部bの下方に垂下させた4ケ所の延長板7からそれぞれの対面する延長板7に向かうリブにより相互に連架させ、該連架させたリブを下方に延長させることにより形成され、その断面は、図3(3−4)に示すように十字状をなす。
【0017】
また、前記リブ8を注出口本体Aの接着基部bとは別体として設ける場合は、接着基部bと接合できる構造を有する十字リブであればよく、その接合は、例えば、前記接着基部bの筒部内面に嵌合用の凹部を形成し、また、十字リブの接合部には、前記凹部に嵌合する凸部を形成すればよい。接着基部bと十字リブの接合は前記凹凸嵌合の他、接着基部bの筒部内面と十字リブとの螺合であってもよく、本発明においてはその方法を限定しない。
【0018】
以上説明したように、本発明の、吸引時の閉塞防止の目的を達することができるならばパウチC内に延長される足、すなわち、延長リブ8は前記接着基部bと一体に成形されたものであっても、また、別に成形した延長部8を接着基部bに接続したものであってもよい。延長リブ8の形状は、好ましくは断面十字状であり、注出口を有するパウチ容器としてパウチCに注出口を接着直後から、商品を充填し、流通、保管、そして消費されるまでの間、パウチを傷つけないために、その先端部は図1に示すように角丸とすることが望ましい。
また、延長リブのリブ幅は延長部全長にわたって同一である必要はなく、たとえば、先端にいくに従って幅狭となしたり、一部切り欠きが存在してもよい。
【0019】
注出口本体Aと蓋体Bとは別体からなるもので、ポリスチレン、ポリプロピレン等にて射出成形されたものである。注出口本体Aの成形材料としては、パウチCの内面と熱接着可能な材質であり、また、蓋体Bを注出口本体Aに螺着したとき、より緊密性を得ることができるものを選択することが望ましい。たとえば、注出口本体Aには、低密度ポリエチレンを用い、蓋体Bには中密度ポリエチレンあるいはポリプロピレンを用いることができる。
低密度ポリエチレンは、前記中密度、高密度ポリエチレンまたはポリプロピレンよりも剛性が低いため、前記螺着においては、前記の材質の組み合わせのように、剛性の程度の差を利用することによって緊密な巻締めが容易にできる。注出口本体Aと蓋体Bとに用いる成形材料を前記の逆にしても前記と同様に緊密な巻締めをすることができる。
【0020】
パウチCの周縁部の内面と注出口本体Aの接着基部bの接着面とを合わせ、加熱材をパウチCの両外側より当接してシャトル形状の接着基部bにパウチCを加熱接着する。
【0021】
【発明の効果】
本発明の注出口筒部cとしたことにより、注出口をパウチに接着する工程あるいは充填時にパウチを移動または所定の装置への脱着が、舟形状のフランジ部aと第3のフランジ部、また、角筒部11の存在により、安定確実な作業となった。さらに、開口部天面を2段構造とし、蓋体bの天板内面に設けたコンタクトリング20を前記2段構造天面の低い面に密着させることにより、液体密封性がより一層確実なものとなった。
【0022】
パウチCと接着する接着基部bを、底面視においてシャトル形状としたことにより、注出口本体AとパウチCの接着が確実となり、液漏れの危険性がなくなり、第2のフランジ部3と舟形状のフランジ部aとの間に、前記第2のフランジ部3よりも大きな径を有する第3のフランジ部4を設けたことにより、第2のフランジ部4と蓋体Bとのシュリンクの際のシュリンクフィルム19の位置規制が可能となった。
【0023】
接着基部に設けた延長十字リブ8によって、内容物を吸引するときに、パウチCが閉塞することがなく、最後まで吸引でき、蓋体Bの材質を注出口本体Aよりもわずかに剛性、または注出口本体Aよりもわずかに柔軟にし、また、蓋体Bの外面には条溝13を形成したことにより、手による蓋Bの開閉が容易になった。
【図面の簡単な説明】
【図1】本発明のパウチ用注出口の実施例を示す斜視図
【図2】部分拡大図図1の注出口本体の正面図(2−1)、蓋体の螺着を示す一部断面を含む正面図(2−2)、図2(2−2)のP部分拡大図(2−3)、注出口本体の底面図(2−4)
【図3】図2(2−1)の一部断面を含む部分拡大図(3−1)、図2(2−1)のそれぞれX−X部下面図(3−2)、Y−Y部上面図(3−3)及びZ−Z部断面図(3−4)
【図4】注出口本体をパウチに接合した状態の説明図(4−1)、図4(4−1)のW−W部断面図(4−2)
【図5】注出口筒部と蓋体とのシュリンクについての説明図
【図6】従来技術による液体密封性の構造例を示す概念図
【符号の説明】
A 注出口本体
B 蓋体
C パウチ
a 舟形状のフランジ部
b 接着基部
c 注出口筒部
1 両側辺面
2 突出部
3 第2のフランジ部
4 第3のフランジ部
5 天面上段面
6 天面下段面
7 延長板
8 十字リブ
9 十字リブの先端部
10 丸筒部
11 角筒部
12 螺条
13 蓋体の側面に設けた条溝
14 螺条切り欠き
15 肉厚部
16 溝
17 開口部
18 パウチの辺縁部
20 コンタクトリング
21 コンタクトリブ
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a spout with a lid that is sandwiched between two sides of a side edge of a pouch that contains a liquid.
[0002]
[Prior art]
In a bag-in-box known so far, a spout is attached to an internal pouch. This spout has a spout tube protruding outward from a through-hole provided in the pouch and a spout. The flange part formed in the lower end part of the exit tube was brought into contact with the inner surface of the hole edge, and this was adhered to the inner surface of the pouch with an adhesive, heat, ultrasonic waves or the like.
Further, juice is stored in various pouches according to the prior art, such as flat bags, self-standing bags (stand type), gusset pouches, and the like, and a spout having a suction portion is attached to the edge of the pouch. In the pouch with a spout, the spout is attached to the edge of the pouch, but since there is no extension that reaches the inside of the pouch, the pouch closes and sucks when the user sucks the contents. There was a case that could not be. Since the flange part provided at the lower part of the spout tube attached to the pouch such as the above bag-in-box is adhered to the hole edge of the inner surface of the pouch, the attachment to the edge part of the pouch etc. Nothing was considered.
In addition, when the spout body and the lid are molded separately and the lid is screwed to the spout body, the movement between processes, and the molding factory and the screwing factory are different When the top surface of the round cylindrical portion of the spout main body in the movement of the liquid is damaged, even if the contact ring of the lid is in close contact with the top surface, the liquid sealability may not be obtained due to the presence of the scratch. there were.
[0003]
[Problems to be solved by the invention]
The present invention is a spout that can be attached to a peripheral portion of a pouch or the like, and the object thereof is liquid sealing by positive clamping to the peripheral portion of a pouch or the like, and a spout main body and a lid. The present invention provides a technique relating to a structure of a pouch spout that obtains a liquid sealing property when screwed to the pouch and does not cause a closed state in the pouch when the contents are sucked.
[0004]
[Means for solving the problems]
For the elongated boat-shaped flange part, an adhesive base with a rib attached to the inside of the pouch body on one side and extending inside the pouch is provided on the other side. The top surface of the wall forming the round cylindrical portion of the spout consisting of a spout main body consisting of the outlet cylindrical portion and a lid that can be screwed to the spout cylindrical portion is formed with a higher outer surface side and a lower inner surface side. For a pouch having a two-stage structure in which a contact ring is provided on the inner surface of the top plate of the lid that is screwed onto the cylindrical thread. It is a spout and further includes the following inventions. That is, the adhesive base provided on the elongated boat-shaped flange portion is between the two sides of the pouch and has a shuttle shape when viewed from the bottom so that the two sides can be easily bonded to maintain the liquid sealing property, A second flange is provided in the middle portion of the spout tube portion, the opening side of the second flange portion is a round tube shape having a thread on the outer peripheral surface, and the boat-shaped flange portion side is a square tube. A third flange portion having a diameter larger than that of the second flange portion is provided between the second flange portion and the boat-shaped flange portion; A rib extending into the pouch is formed, or the rib extending into the pouch is molded as a separate body and connected to the adhesive base, and the lid is molded from a synthetic resin. Slightly more rigid than the spout body Or Note with slightly more flexible than the outlet body, the outer surface is that the formation of the Jomizo to facilitate knob during threaded removable.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
The present invention stores juice, etc., and the user puts a mouth at the spout and sucks the contents, or stands, gussets, etc. pouches for packaging pharmaceuticals, cleaning agents, inks, etc. It is a spout with a lid that is sandwiched between two sides with respect to a portion obtained by cutting a side edge portion and a corner portion of a flat pouch, etc., and is composed of a spout main body and a lid, and the spout and lid are Each is a separate entity. However, when the extension part rib is provided in the spout main body to prevent clogging, the extension rib may be formed separately and connected to the adhesive base of the spout main body. Both are formed of a resin such as polyethylene or polypropylene.
As one of the factors hindering the liquid sealability due to the splicing of the spout main body and the lid, which is the main object of the present invention, the top of the opening of the spout main body is covered with the contents after filling. Although it may be damaged before the body is screwed, it is performed by the contact ring between the opening of the spout main body and the inner surface of the top plate of the lid, but due to the above-mentioned scratch, it does not have perfect liquid tightness There was a thing. For example, when the spout body and lid are molded separately and subjected to vibration impact until the capping process after filling the contents, the top surface of the opening of the spout body is damaged and uneven. Even if the contact ring provided on the lid is in close contact with the top surface, complete liquid tightness may not be obtained.
Therefore, as a result of studying the shape of the opening of the spout body and the inner surface of the top plate of the lid, the material used, etc., the present inventor obtains a spout suitable for the intended purpose as described below. I was able to.
[0006]
The spout main body is composed of an adhesive base portion attached to the inside of the pouch main body on one side of the elongated boat-shaped flange portion, and a spout cylinder portion on the outer side of the pouch on the other side. Embodiments of the present invention will be specifically described below with reference to the drawings.
[0007]
【Example】
1 is a perspective view showing an embodiment of a pouch spout according to the present invention, FIG. 2 is a front view of a spout main body (2-1), and a front view including a partial cross section showing screwing of a lid ( 2-2), P partial enlarged view (2-3) of FIG. 2 (2-2), bottom view (2-4) of the spout main body, and FIG. 3 are partial cross-sections of FIG. 2 (2-1). (3-1), XX part bottom view (3-2), YY part top view (3-3), and ZZ part sectional view of FIG. (3-4), FIG. 4 is explanatory drawing (4-1) of the state which joined the spout main body to the pouch, WW section sectional drawing (4-2) of FIG. 4 (4-1), FIG. FIG. 6 is an explanatory view of the shrinkage between the spout tube portion and the lid, and FIG. 6 is a conceptual diagram showing an example of a liquid-sealing structure according to the prior art.
[0008]
The material shape of the pouch to which the pouch spout of the present invention is attached is designed according to the type of contents or the capacity. The pouch to which the pouch spout of the present invention is applied is a type in which a user puts a mouth on the spout and sucks it, and the amount of contents to be stored is 100 to 500 grams, and the most planned planned capacity is 200-300 grams.
In addition, as the shape of the pouch C, the stand type and the gusset type are generally used, and the materials thereof are materials such as paper, plastic film, metal foil, etc., and these materials are used for the purpose of improving physical properties. A material obtained by applying other materials, processing by vapor deposition, or the like, or using the processed materials, or a material obtained by laminating these materials is used.
[0009]
The basic material composition of the pouch C is often composed of a base material, a barrier material for protecting the contents, and an inner surface material having heat sealability.
The base material is selected from materials having printability, strength, heat resistance and the like, and preferably a stretched film formed by forming a resin such as various thin papers, polypropylene, polyester, polyamide, etc. Barrier film such as a film formed from a polyvinyl alcohol resin film, a film formed from a saponified resin of ethylene-vinyl acetate copolymer, a metal foil such as aluminum, and vinylidene chloride on the above various films. It is also possible to use a film provided with a moisture-proof coating such as a film, or a film obtained by directly depositing a metal or an oxide such as silicon or aluminum directly on the base film, instead of using another film as a barrier material.
Further, as the heat seal material, a material having a necessary strength as a pouch is selected without causing any trouble in the taste of the contents. Examples thereof include low density polyethylene, linear low density polyethylene, polyolefin polymerized using a metallocene catalyst, and ethylene-vinyl acetate copolymer.
However, the material constituting the heat seal layer must be a heat seal for assembling the pouch and must be a material that can be thermally bonded to the bonding surface of the spout body. In this case, it is necessary to confirm mutual adhesion.
[0010]
As described above, the present invention is a spout with a lid that is sandwiched between two sides of a pouch or the like of a stand type, a gusset type, or the like, or a portion where a side edge or a corner of a flat pouch is cut. is there.
As described above, the spout main body A of the present invention includes the elongated boat-shaped flange portion a, the adhesive base portion b, and the spout tube portion c.
The elongate boat-shaped flange portion a has a boat shape in plan view, and the side surfaces 1 form a guide surface when transported to an adhesive portion such as a pouch C, and end portions in the length direction. Is formed with a protrusion 2 directed upward.
[0011]
One side of the boat-shaped flange portion a is provided with a spout tube portion c that becomes the outside of the pouch C when the spout port is attached to the pouch C, and a second flange is provided at an intermediate portion of the spout tube portion c. Part 3 is provided. The side surface of the second flange portion is a side surface parallel to both side surfaces 1 of the boat-shaped flange portion. Moreover, the circular arc part on both sides with respect to the side surface may have a circular arc shape in which many straight lines are connected, for example. Then, the opening side of the second flange portion 3 is formed into a round cylindrical shape 10, and a screw thread 12 for screwing the lid is provided on the outer peripheral surface thereof.
As shown in FIG. 6, the liquid sealing property between the spout and the lid according to the prior art is such that the contact rib 21 provided on the lid is in close contact with one or both sides of the top of the spout (6-1), The contact ring 20 is closely attached to the top surface of the spout and the contact ribs are closely contacted (6-2). However, if the top surface is uneven due to scratches or the like, liquid leakage may occur. It was.
Therefore, in the present invention, as shown in FIG. 2 (2-3), the top surface of the round tube portion 10 forming the opening of the round tube portion has a high outer surface side 5 and a lower inner surface side 6. A step structure is adopted.
As shown in FIG. 2 (2-3), the lid B that is screwed into the spout cylinder 10 having the top surface of the two-stage structure is provided with a contact ring 20 on the inner surface of the top plate of the lid. When the lid B is screwed, the contact ring 20 is provided at a position in close contact with the lower surface 6 on the inner surface side of the top surface of the two-stage structure of the spout tube portion c. When transported only by the spout main body A, the molded products come into contact with each other and damage the top surface of the spout cylinder portion c. However, in the spout main body A of the present invention, the surface 5 having a high outer surface on the top surface. Since only the surface is damaged and the lower surface 6 on the inner surface side of the top surface is not damaged, the liquid tightness is more complete.
[0012]
On the other hand, the boat-shaped flange portion a side of the second flange portion 3 is a rectangular tube 11, and a third flange portion is provided between the second flange portion 3 and the boat-shaped flange portion a. 4 is provided. The third flange portion 4 has a larger diameter than that of the second flange portion 3, and the length direction thereof is the same as the length direction of the boat-shaped flange portion. The shape of the third flange portion 4 in plan view is not particularly limited, and may be a polygon such as a square, a hexagon, or an octagon, or a circle or an ellipse. In the drawings attached to this specification, it is described as a long octagonal shape. The reason why the third flange portion 4 needs a larger diameter than the diameter of the second flange portion 3 is that the lid body B and the second flange portion 3 are connected to indicate that the lid body is not opened. The heat shrink film 19 (hereinafter referred to as a shrink film) may be fixed by shrink as shown in FIG. 5 (5-2). The shrink film is sealed in a sleeve shape in advance and covers the lid B and the second flange portion 3. At this time, the diameter of the sleeve of the shrink film is larger than the maximum diameter of the second flange portion 3. If the sleeve is sealed to a slightly larger diameter sleeve, the workability and the finish of the shrink are good, and when the cover B and the second flange portion 3 are covered with the shrink film, FIG. As shown, the position can be regulated by the third flange portion 4.
The shrink film 19 of the present invention is preferably a stretched film made of polyethylene, polypropylene, polystyrene, polyvinyl chloride, or the like, and in advance than the maximum diameter of the lid B and the second flange 3, A slightly large-diameter cylindrical seal (sleeve) is covered over the long octagonal flange 4 of the spout tube portion c as shown in FIG. 5 (2-1), and a shrink tunnel (heating furnace) And the lid and the second flange 3 are fixed. The purpose of shrink wrapping is to prevent the tip of the spout from being contaminated by dust or the like, and to be unopened at the storefront, which is a measure of so-called virginity.
[0013]
The thread 12 can be provided with a notch 14 parallel to the axial direction of the spout cylinder part c as shown in FIG. The purpose of providing such a notch 14 is to clean the spout (injection port) part in the process of filling the contents, but the washing water or the like does not flow through the thread and stays in the thread part. However, the notch 14 allows the cleaning water to flow without stagnation, so that the spout portion can be cleaned efficiently.
[0014]
Moreover, the thick part 15 of the same height as the upper surface of the protrusion part 2 of the said both ends is provided in the square cylinder part 11 periphery of the said boat-shaped flange part a. The thick portion 15 has a quadrangular shape in its outer shape, and a groove 16 is formed between the thick portion 15 and the protruding portion 2. The groove 16 serves as a guide when the pouch container having the spout is transported and set at a predetermined position in the step of bonding the spout main body A to the pouch C or the step before and after filling the contents. To fulfill.
By forming the cylindrical portion 11 from the second flange portion 3 to the boat-shaped flange portion a into a square tube shape in the outer shape, the direction of the spout main body A serves as a guide function for the movement of the rectangular tube portion 11 during transportation. The function of regulation is achieved, the process of attaching the spout body A to the pouch C and the transport of the pouch container having the spout before and after the packaging process and the setting of the container to a predetermined position are ensured. Speed up is possible.
[0015]
The adhesive base b is provided on the other side of the elongated boat-shaped flange portion a as described above. The adhesive base b is located inside the pouch C and is sandwiched between the two sides with respect to the edge portion, and forms a shuttle shape in the bottom view as shown in FIG. 2 (2-4). Adhesive surfaces on both sides of the adhesive base part b below the spout tube part c are formed, and these adhesive surfaces are connected as adhesive parts at the lower part of the elongated boat-shaped flange part a. ing.
[0016]
The adhesive base b is preferably provided with ribs 8 that extend into the pouch when bonded to the pouch C. The rib 8 may have a shape formed integrally with the adhesive base b, and may be formed separately from the spout main body A.
The rib 8 provided so as to extend into the pouch from the adhesive base b of the spout main body A is finally sucked without the pouch C being closed when the contents are sucked by the user. The function to make it possible is shown.
When the ribs 8 are integrally provided on the adhesive base b of the spout main body A, the ribs 8 are connected to each other by the ribs extending from the four extension plates 7 suspended below the adhesive base b to the facing extension plates 7. The crossed ribs are formed by extending the linked ribs downward, and the cross-section thereof has a cross shape as shown in FIG. 3 (3-4).
[0017]
Moreover, when providing the said rib 8 as a different body from the adhesion base part b of the spout main body A, what is necessary is just a cross rib which has a structure which can be joined with the adhesion base b, and the joining is the bonding base b, for example, A concave portion for fitting may be formed on the inner surface of the cylindrical portion, and a convex portion that fits into the concave portion may be formed at the joint portion of the cross rib. The bonding of the adhesive base b and the cross rib may be a screw engagement between the inner surface of the cylindrical portion of the adhesive base b and the cross rib, in addition to the above-described uneven fitting, and the method is not limited in the present invention.
[0018]
As described above, if the purpose of the present invention for preventing occlusion at the time of suction can be achieved, the legs extended into the pouch C, that is, the extension ribs 8 are formed integrally with the adhesive base b. Alternatively, the extension 8 formed separately may be connected to the adhesive base b. The shape of the extension rib 8 is preferably a cross-shaped cross section, and the pouch is formed immediately after the spout is bonded to the pouch C as a pouch container having a spout until the product is filled, distributed, stored, and consumed. In order to prevent damage, it is desirable that the tip end be rounded as shown in FIG.
Further, the rib width of the extension rib does not need to be the same over the entire length of the extension portion. For example, the extension rib may become narrower or partially cut out as it goes to the tip.
[0019]
The spout main body A and the lid body B are formed separately and are injection-molded with polystyrene, polypropylene or the like. As the molding material for the spout body A, a material that can be thermally bonded to the inner surface of the pouch C is selected, and a material that can obtain a tighter seal when the lid B is screwed to the spout body A is selected. It is desirable to do. For example, low-density polyethylene can be used for the spout main body A, and medium-density polyethylene or polypropylene can be used for the lid B.
Low-density polyethylene has lower rigidity than the medium-density, high-density polyethylene or polypropylene. Therefore, in the screwing, tight winding is performed by utilizing the difference in the degree of rigidity as in the combination of the materials described above. Can be easily done. Even if the molding materials used for the spout main body A and the lid B are reversed, the tight winding can be performed in the same manner as described above.
[0020]
The inner surface of the peripheral edge of the pouch C and the bonding surface of the bonding base b of the spout main body A are aligned, and the heating material is brought into contact with both outer sides of the pouch C to heat bond the pouch C to the shuttle-shaped bonding base b.
[0021]
【The invention's effect】
By adopting the spout tube portion c of the present invention, the step of adhering the spout to the pouch or the movement of the pouch at the time of filling or the attachment / detachment to a predetermined device may be performed by the boat-shaped flange portion a and the third flange portion, Due to the presence of the rectangular tube portion 11, the operation is stable and reliable. Furthermore, the top surface of the opening has a two-step structure, and the contact ring 20 provided on the top plate inner surface of the lid b is brought into close contact with the lower surface of the two-step structure top surface, thereby further ensuring the liquid sealing performance. It became.
[0022]
The adhesive base b that adheres to the pouch C has a shuttle shape when viewed from the bottom, so that the spout main body A and the pouch C can be securely bonded, there is no risk of liquid leakage, and the second flange 3 and the boat shape The third flange portion 4 having a diameter larger than that of the second flange portion 3 is provided between the second flange portion 4 and the lid B. The position of the shrink film 19 can be regulated.
[0023]
When the contents are sucked by the extended cross ribs 8 provided on the adhesive base, the pouch C is not closed and can be sucked to the end, and the material of the lid B is slightly rigid than the spout main body A, or Since it is slightly more flexible than the spout main body A and the groove 13 is formed on the outer surface of the lid B, the lid B can be easily opened and closed by hand.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of a pouch spout according to the present invention. FIG. 2 is a partially enlarged view of a front view (2-1) of a spout main body in FIG. Front view (2-2) including, P portion enlarged view (2-3) of FIG. 2 (2-2), bottom view (2-4) of the spout body
3 is a partially enlarged view (3-1) including a partial cross section of FIG. 2 (2-1), a bottom view of the XX portion of FIG. 2 (2-1) (3-2), and YY. Part top view (3-3) and ZZ part sectional view (3-4)
FIG. 4 is an explanatory view (4-1) of a state where a spout body is joined to a pouch, and a cross-sectional view taken along the line WW in FIG. 4 (4-1).
FIG. 5 is an explanatory view of the shrinkage between the spout tube portion and the lid. FIG. 6 is a conceptual diagram showing an example of a liquid sealing structure according to the prior art.
A Outlet body B Lid C Pouch a Boat-shaped flange part b Adhesive base part c Outlet cylinder part 1 Both side surfaces 2 Projection part 3 Second flange part 4 Third flange part 5 Top surface upper surface 6 Top surface Lower stage surface 7 Extension plate 8 Cross rib 9 Cross rib tip 10 Round tube portion 11 Square tube portion 12 Thread 13 Thread groove 14 provided on the side of the lid 14 Thread notch 15 Thick part 16 Groove 17 Opening 18 Pouch edge 20 Contact ring 21 Contact rib

Claims (3)

細長の舟形状のフランジ部に対し、その一方側に、パウチ本体の内側に取付けられ、パウチ内部に延長されるリブを具備した接着基部を、また他方側にパウチ装着時にパウチの外側にある注出口筒部からなる注出口本体と注出口筒部に螺着可能な蓋体からなる注出口を設けた構成からなり、更に、上記の注出口筒部の中間部に第2のフランジ部を設け、かつ、該第2のフランジ部より開口部側を丸筒状の筒部とし、その外周面に、上記の蓋体を螺着脱するための螺状を設け、更に、上記の丸筒状の筒部の開口部を形成する筒部の天面を、その外面側を高く、内面側を低く成形した2段構造とし、他方、上記の螺条に螺着する蓋体の天板の内面に、前記の筒部の天面を構成する2段構造の内面側の低い面に密着するコンタクトリングと、更に、前記の筒部の天面を構成する2段構造の内面側の低い面の内側壁に密設するコンタクトリブとを設け、また、上記の第2のフランジ部より上記の舟形状のフランジ部側は、角筒状とし、更に、上記の第2のフランジ部より上記の舟形状のフランジ部との間に、上記の第2のフランジ部より大きな径を有し、その長さ方向は、上記の舟形状のフランジ部の長さと方向と同一とする第3のフランジ部を設けたことを特徴とするパウチ用注出口。 An elongated base of the boat-shaped flange is attached to the inside of the pouch body on one side and has an adhesive base with a rib that extends inside the pouch, and on the other side, outside the pouch when the pouch is attached. It comprises a spout body comprising a spout cylinder and a spout comprising a lid that can be screwed onto the spout cylinder, and a second flange portion is provided at the middle of the spout cylinder. Provided, and the opening side of the second flange portion is a round tube-like tube portion, and a screw shape for screwing and removing the lid body is provided on the outer peripheral surface, and the round tube shape is further provided. The top surface of the cylindrical portion forming the opening of the cylindrical portion has a two-stage structure in which the outer surface side is formed high and the inner surface side is formed low, and on the other hand, the inner surface of the top plate of the lid body screwed to the above-described screw A contact ring closely contacting a lower surface on the inner surface side of the two-stage structure constituting the top surface of the cylindrical portion, and A contact rib that is densely provided on the inner wall of the lower surface on the inner surface side of the two-stage structure that constitutes the top surface of the cylindrical portion, and the boat-shaped flange portion side from the second flange portion Has a larger diameter than the second flange portion between the second flange portion and the boat-shaped flange portion, and the length direction thereof is as described above. A pouch spout characterized in that a third flange portion having the same length and direction as the boat-shaped flange portion is provided. 細長の舟形状のフランジ部に設けた接着基部はパウチの2辺間にあって2辺が接着し易くして液体密封性が保てるようにした底面視においてシャトル形状であることを特徴とする上記の請求項1記載のパウチ用注出口。The adhesive base provided on the elongated boat-shaped flange portion is between the two sides of the pouch and has a shuttle shape when viewed from the bottom so that the two sides can be easily bonded to maintain the liquid sealing property . The pouch spout according to claim 1. 接着基部に設けたリブが、別体として成形されて接着基部に接続されることを特徴とする上記の請求項1乃至請求項2のいずれか1項に記載のパウチ用注出口。The pouch spout according to any one of claims 1 to 2, wherein a rib provided on the adhesive base is molded as a separate body and connected to the adhesive base.
JP29591196A 1996-10-18 1996-10-18 Pouch spout Expired - Fee Related JP3935536B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP29591196A JP3935536B2 (en) 1996-10-18 1996-10-18 Pouch spout

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP29591196A JP3935536B2 (en) 1996-10-18 1996-10-18 Pouch spout

Publications (2)

Publication Number Publication Date
JPH10120000A JPH10120000A (en) 1998-05-12
JP3935536B2 true JP3935536B2 (en) 2007-06-27

Family

ID=17826745

Family Applications (1)

Application Number Title Priority Date Filing Date
JP29591196A Expired - Fee Related JP3935536B2 (en) 1996-10-18 1996-10-18 Pouch spout

Country Status (1)

Country Link
JP (1) JP3935536B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4504471B2 (en) * 1999-01-08 2010-07-14 武内プレス工業株式会社 Seal structure between cap and tube mouth
JP5072189B2 (en) * 2005-03-10 2012-11-14 東洋製罐株式会社 Container outlet assembly
JP4774792B2 (en) * 2005-04-06 2011-09-14 東洋製罐株式会社 Method for thermal crystallization of the mouth of a resin container

Also Published As

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JPH10120000A (en) 1998-05-12

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