JP3678983B2 - Contents enclosure container and contents enclosure container manufacturing method by contents enclosure simultaneous molding - Google Patents

Contents enclosure container and contents enclosure container manufacturing method by contents enclosure simultaneous molding Download PDF

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JP3678983B2
JP3678983B2 JP2000234744A JP2000234744A JP3678983B2 JP 3678983 B2 JP3678983 B2 JP 3678983B2 JP 2000234744 A JP2000234744 A JP 2000234744A JP 2000234744 A JP2000234744 A JP 2000234744A JP 3678983 B2 JP3678983 B2 JP 3678983B2
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container
opening
sealing member
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contents
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JP2002046725A (en
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定 大澤
昌良 大澤
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大澤ワックス株式会社
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【0001】
【発明の属する技術分野】
本発明は、液体、粘性流体、粉粒体等が密閉状に封入された容器に関する。
【0002】
【従来の技術】
洗剤などの粉粒体や、医薬品、機械オイルなどの液体や流体には、プラスチック製の容器に密閉状に封入されたものがある。これらの内容物が封入された容器は、容器の開口予定部分の樹脂を成形せずに開放状にしておき、中空部分のみをブロー成形や真空成形によって成形した後、内容物を容器の中空部分に注入して内容物を容器に入れる。その後、容器の開口予定部分の樹脂を密閉状に成形することによって、内容物が封入された一体成形状の容器となる。このような容器は、安価に製造でき、また単純な構造で良好に内容物を密閉状態で保管等することができる。
【0003】
ところで、これらの容器から封入された内容物を取り出すときには、内容物が封入された容器の所定部位を捻じ切ったり、切断したりする。このため、一度開封すると、このような容器内に内容物を保管しておくことができない。したがって、多くの場合、内容物は一回で使い切るか、残りを捨てることになる。
【0004】
【発明が解決しようとする課題】
そこで、本発明では、内容物が封入された容器で、開封後もこの容器内に内容物を保管できる内容物封入容器を提供することを課題とし、併せて、このような内容物封入容器を製造する方法を提供することを課題とする。
【0005】
【課題を解決するための手段】
上記課題を解決するため、本発明では、内容物が封入された容器であって、本体部とこの本体部に一体成形された密閉部材とを有し、前記本体部は、内容物が収容されて密閉状に成形されたキャビティと、破壊されることによって前記内容物を前記キャビティから取り出し可能とする開口が形成される開口予定部とを備え、前記密閉部材は、前記開口予定部から離れた位置に設けられて、前記開口予定部の前記破壊されて開放される開口を閉塞するように前記本体部に結合可能である容器を提供する。
【0006】
この容器によれば、内容物は、容器のキャビティ内に収容されており、キャビティは密封状に成形されている。そして、本体部を開口予定部で破壊することで、キャビティを開放状態に形成し、内容物を取り出すことができる。その後、容器内に内容物の残りを保管しておくときは、容器と一体に形成された密閉部材を用いて、開口予定部の破壊によって開口とされた部分を閉塞することで、密閉することができる。このため、封入されている内容物を一度に使い切らずに、同じ容器に保管しておくことができる。また、一成形によってすべての部分が構成されているため、より単純な工程で製造することができる容器となっている。
【0007】
また、上記内容物封入容器であって、前記密閉部材は、前記本体部に一体成形された連結部によって前記本体部に移動可能に連結されている容器を提供する。
この容器では、密閉部材は、本体部を開口予定部で破壊して形成される開口を閉塞できるとともに、常に本体部に一体的に設けられているため、紛失するおそれがない。
【0008】
また、上記いずれかの内容物封入容器であって、前記開口予定部の周囲に破壊補助部が形成されており、前記破壊補助部の一部が前記密閉部材に形成されていることを特徴とする容器を提供する。
この容器では、開口予定部の周囲に破壊補助部が形成されている容器において、この破壊補助部の一部が密閉部材に形成されている。このため、従来と同様の形状を保ったまま、密閉部材を一体成形することができ、また密閉部材が邪魔になり難い。また、従来、開封後、そのまま捨てていた破壊補助部に密閉部材を形成することで、材料を効率よく利用した容器とすることができる。
【0009】
また、前記いずれかの内容物封入容器であって、前記密閉部材は、凸部と縁部とを備え、前記凸部は、前記開口予定部が破壊されて形成される開口に、圧入によって挿入可能とされるとともに、前記本体部の前記キャビティ側の面に係止可能に形成され、前記縁部は、前記凸部が前記開口に挿入されているときに前記破壊された部分の外側に圧接されることを特徴とする容器を提供する。
この容器では、密閉部材は、凸部と縁部という単純な構造であるため、容器に一体に成形しやすい。また、開口に形成された部分を、キャビティ側と外部側の両方から挟み付ける形態で密閉部材が固定されることで、良好な密閉状態が形成される。
【0010】
また、本発明では、熱可塑性樹脂で、少なくとも本体部の底部を含む中空状部分を成形して上方を開放状に保持した中間成形体の前記中空状部分に、前記開放部分から内容物を投入する工程と、前記開放部分を密閉状に形成する工程とを有する、内容物が封入された容器を製造する方法であって、前記密閉状に形成された容器を開封した後、この開封部分を再び閉塞するように前記本体部に結合可能な密閉部材を、当該開封部分から離れた位置に前記容器と一体に成形することを特徴とする内容物封入容器の製造方法を提供する。
この方法では、容器の成形、内容物の注入、容器の密閉、及び密閉部材の成形が、一連の工程で行われる。このため、製造ラインが短くなり、製造時間が短くて済む。また、密閉部材を同時に同一材料で成形できるため、効率が良い。
【0011】
【発明の実施の形態】
次に、本発明の実施の形態について、図面を参照しながら説明する。
図1は、本発明の一実施の形態に係る内容物封入容器の平面図である。容器1は、本体部2と密閉部材4とを有し、全体が熱可塑性樹脂によって一体に成形されている。本体部2内には、内容物が封入されており、本実施形態では、液体状の潤滑油が封入されている。
【0012】
なお、内容物は、液体に限定されず、粉体、粒体等の固体や、粘性流体、ペースト等、種々の形態のもので良い。また、これらの混合物であっても良い。具体的には、洗剤やオイル、医薬品や食品、調味料等を内容物とすることができる。
【0013】
本体部2は、キャビティ6と開口予定部8とを有している。キャビティ6は、内容物を入れて、収容しておく部分で、密閉状に形成されている。本実施形態では、本体部2は、直方体状の内部空間を有する胴部11を有し、その上部に、より径の小さいテーパ状の注出用部12を有している。そして、注出用部12の上端がくびれてより径の大きい球状の先端部14を備えている。キャビティ6は、胴部11の内部空間と、この空間に連通して形成された注出用部12の内部空間、及び先端部14内に形成された球状空間によって形成されており、密閉状となっている。
【0014】
開口予定部8は、本体部2の本体部2内にキャビティ6が形成されている部分に設けられ、内容物を取り出すときに破壊されることによって、開口10が形成される部分である。開口予定部8は、種々の部位及び形状に設けることができる。また、本体部2の特定箇所を指定せず、例えば本体部2の細管状に形成された部位全体とし、所望の位置をハサミ等で切断することによって破壊される領域を開口予定部8としても良い。開口予定部8は、くびれや切れ込み等の脆弱な部分に形成されていると、破壊が容易であるため、好ましい。
開口予定部8の破壊形態は、特に限定されず、ハサミ、カッターや錐などの道具を用いる形態でも良いし、道具を必要とせず、手で引張ったり捻じったりするだけで破壊できる形態でも良い。
【0015】
本実施形態では、本体部2の注出用部12と先端部14との境界部分が開口予定部8に形成されている。開口予定部8で、注出用部12と先端部14とが分離されるように切断状に破壊されることにより、注出用部12の上端が開口10に形成されるようになっている。
【0016】
開口予定部8の周囲には、図1(a)に示すように、破壊補助部3が設けられている。破壊補助部3は、本体部2に一体成形されており、開口予定部8の破壊によって内容物が収容される側の本体部2から分離される部分とともに分離可能とされている。破壊補助部3の形状は、板状、棒状、球状等種々の形状を取り得る。
【0017】
本実施形態において、破壊補助部3は、図1(a)(b)に示すように、端縁の厚みが増大されて補強された平板状に形成されており、本体部2の先端部14から注出用部12にわたる本体部2の周囲に配置されている。破壊補助部3は、先端部14と密着して形成されるとともに、胴部11の上部外面に薄板状部分で連結状に一体化されている。そして、破壊補助部3と注出用部12の外面との間には、細い切り込み3aが形成されて、分離しやすいように形成されている。
【0018】
密閉部材4は、本体部2が開口予定部8で破壊されて開放状態とされたキャビティ6を、再び密閉状に形成する部材で、容器本体部2と一体に形成される部分である。すなわち、密閉部材4は、開口予定部8が破壊されて形成される開口10を閉塞できる形状に形成されている。また、密閉部材4は、本体部2と種々の結合形態によって結合する形状とされている。例えば、本体部2と密閉部材4とに対を成すネジ部を形成して螺合可能としたり、対応する凹部と凸部とを設けて嵌合可能としたりすることができる。このような結合形態によって、密閉部材4は、本体部2に形成された開口10を閉塞した状態で容器の本体部2に固定される。
【0019】
密閉部材4は、本体部2の底部や側面、上部など、種々の部位に配置することができる。密閉部材4と容器本体部2側との一体成形の形状は、種々の形態を取ることができる。例えば、密閉部材を、容器本体部の外面に直接設けても良いし、容器本体部から密閉部材へ向かって延びる棒状部や板状部、紐状部等の脆弱な連結部を介して設けても良い。本体部2と密閉部材4との間に介在部分を設けると、密閉部材4を分離するときに本体部2が破壊されてキャビティ6が開放されるおそれがなく、好ましい。また、密閉部材4は、図1に示すように破壊補助部3の一部として形成されると、従来とほぼ同様の形状の容器とすることができ、好ましい。
【0020】
密閉部材4は、本体部2側から完全に分離可能としても良いし、あるいは、一部で本体部2と連結された状態であっても良い。いずれにおいても、密閉部材4は、本体部2を開口予定部8で破壊することで形成される開口10を閉塞できるように移動可能とされる。密閉部材4を本体部2側から分離する形態は、本体部2を開口予定部8で破棄する形態と同様な種々の形態を取り得る。ハサミ、カッター等を用いて切断する形状でも良いし、引き千切る、ねじ切るなど道具を用いない形態であっても良い。
【0021】
本実施形態では、密閉部材4は、図1(a),(c)に示すように、破壊補助部3の一部として形成されている。そして、密閉部材4は、本体部2を開口予定部8で破壊して形成される開口10部分に係合可能な係合部16と、把持部18とを備えている。
【0022】
係合部16は、凸部21と薄板状の縁部23とを有している。凸部21は、破壊後の注出用部12の上面に形成される開口10に押し付けることで、注出用部12の内部まで挿通できるように形成されている。凸部21は、注出用部12の内部に配置されると、開口10周りの注出用部12の内壁に圧接する形状とされている。
縁部23は、凸部21に連続して形成されている。縁部23は、凸部21が注出用部12内に配置されたとき、開口10周りの注出用部12の外面に押し当てられる部分である。
把持部18は、図1(a),(c)に示すように、人が指で挟みつけられる大きさの薄板状に形成された部分で、縁部23を挟んで凸部21と対向する位置に設けられている。
【0023】
図1に示すように、密閉部材4は、破壊補助部3と接する部分のうち、破壊補助部3の端部及び凸部21の最突出部分のみが薄板状の連結部分によって連結されている。そして、破壊補助部3と同様、前記以外の密閉部材4と破壊補助部3とが接する部分には、切り込み4aが形成されて、分離されている。
【0024】
容器1に封入されている内容物を取り出すときは、図2(a)に示すように、本体部2を開口予定部8で破壊して開口10を形成させる。本実施形態では、本体部2と破壊補助部3とを別々の手で持って、本体部2の注出用部12と先端部14との境界部分とされた開口予定部8を中心に、本体部2の長軸周りに回転させてひねる。この動作によって、本体部2から破壊補助部3及び本体部2の先端部14が分離される。本実施形態では、本体部2と破壊補助部3との間に切り込み3aを入れたり、連結部分を薄板状に形成したりしているため、破壊補助部3を本体部2から容易に切り離すことができ、先端部14と注出用部12とを分離することができる。先端部14を分離すると、注出用部12の上端に開口10が形成されており、キャビティ6内の内容物を開口10から良好に取り出すことができる。
【0025】
容器1のキャビティ6をもう一度密閉状に形成したいときは、図2(a)に示すように、破壊補助部3と密閉部材4とを別々の手で持ってねじ切り、密閉部材4を破壊補助部3から分離する。そして、密閉部材4の把持部18を手で持って凸部21を開口予定部8の開口10に押しつけることによって、開口10周りの注出用部12を弾性変形させて凸部21を開口予定部8内まで通す。このとき、図2(b)に示すように、密閉部材4は、凸部21と縁部23とで、開口10周りの開口予定部8を挟み付けた状態となって、固定される。
【0026】
このように、容器1は、一体成形された密閉空間に内容物を良好に密封状態で収容、保持しておくことができる。そして、内容物を取り出ししたいときには、本体部2を開口予定部8で破壊して、先端部14を本体部2の他の部分から分離する。このことにより、キャビティ6を開放するとともに開口10を形成することができ、良好に内容物を取り出すことができる。
【0027】
そして、容器1に一体成形された密閉部材4を破壊補助部3から分離し、密閉部材4によって開口10を閉塞することにより、キャビティ6を再び密閉状態に形成することができる。このため、キャビティ6内に未使用で残った内容物を容器1に入れたまま保管することができる。
特に、本実施形態の密閉部材4では、開口10のキャビティ6側端縁と外側端縁とを挟み付けることで密閉部材4が固定される。このため、外気がキャビティ6内に流通するのを良好に防いで密閉することができ、良好な保存状態で内容物を保管しておくことができる。また、開口10の外部端縁が縁部23で被覆されるため、開口10が汚染され難く、内容物を開口10から取り出すときに、チリ、埃などの不純物が混入し難い。
【0028】
次に、本実施形態の容器1を製造する方法について、図3から図6を参照しながら説明する。なお、本発明に係る容器は、真空成形やブロー成形等、中空状に形成可能な種々の方法によって形成することができるが、本明細書では、真空成形によって製造する場合について説明する。
【0029】
本実施形態に係る容器1を製造するための金型は、図3に示すように、本体部2の胴部11及び注出用部12の一部(キャビティ6の主要部)を成形するための第一の金型40と、本体部2の残りの部分(注出用部12の一部及び先端部14)と、破壊補助部3、密閉部材4とを成形するための第二の金型50とを有する。第一の金型40の上部に近接して第二の金型50が設けられている。また、第二の金型50の上方に管状に形成された軟化樹脂の上部開口保持部60が配置されており、各金型40,50の中心軸線上に樹脂押出成形機70と、内容物注入機80とが移動可能に設けられている。また、内容物注入機80は、各金型40,50の中心軸線上を昇降自在とされている。
なお、図示しないが、第一の金型40及び第二の金型50と成形用樹脂との間の空間を真空状態に形成可能な真空形成手段が設けられている。
【0030】
容器1を製造するには、図3に示すように、第一の金型40及び第二の金型50を開いておき、各金型40,50の中心軸線上に樹脂押出成形機70を配置して、各金型40,50の間に管状に形成された軟化された熱可塑性樹脂を供給する。
次に、図4に示すように、第一の金型40を閉じて、真空形成手段で真空状態をつくり、胴部11及び注出用部12の一部(キャビティ6)を真空成形する。第一の金型40を閉じることで、管状樹脂の下端は、閉じられて本体部2の底部に成形され、容器1の中空状部分の大部分が成形される。この工程と同時期に、押出された軟化樹脂を樹脂押出成形機70から切り離し、管状軟化樹脂の上端を上部開口保持部60に取り付けて、開放状態に保持する。
【0031】
容器1の中空状部分を成形した後、内容物を投入する。本実施形態では、図4に示すように、まず、内容物注入機80を各金型40,50の中心軸線上に配置する。次に、内容物注入機80の先端が、第一の金型40の上端とほぼ同じ高さになるまで降下させ、内容物注入機80の先端からノズル81を延出し、第一の金型40内に配置する。そして、ノズル81から、第一の金型40内に成形されているキャビティ6内に内容物を所定量だけ投入する。
【0032】
内容物投入後、ノズル81を内容物注入機80内に回収し、内容物注入機80を上昇させる。そして、図5に示すように、第二の金型50を閉じて、真空形成手段で真空状態をつくることによって、本体部2の注出用部12の残りの部分、先端部14、破壊補助部3、及び密閉部材4を成形する。このとき、図5(a)に示すように、キャビティ6は、開口予定部8の注出用部12を介して先端部14まで連通して成形され、先端部14で完全に密封される。この工程により、内容物が収容された内部空間は、密閉状に形成される。また、図5(b)に示すように、第二の金型50の型合わせ面で密閉部材4を中実状に成形する。
【0033】
最後に、図6に示すように、第一の金型40及び第二の金型50を開いて、内容物が封入された、密封済みの容器1を取り出す。なお、この後、適宜バリ取りなどの加工処理をすることができる。
【0034】
このように、容器1は、一連の製造ラインで、容器の成形、内容物の注入、密閉及び密閉部材の成形が一度に行える。このため、製造ラインが短くて済み、短時間で製造することができる。また、容器の成形、内容物の注入、及び密閉を連続して行えるため、衛生管理等が容易に行える。また、密閉部材を同一材料で同時に成形することができるため、密閉部材を別ラインで製造するのに比べ、格段に低コストで製造することができ、また、製品の体裁を整える場合も、容器と一体化されているため、手間がかからない。
【0035】
なお、本発明の内容物封入容器は、上記実施形態のものに限定されない。
容器の形状は、上記実施形態に限定されず、種々の形態を取り得る。例えば、上記容器1を各側面で複数個連結した形状としても良い。この場合、各容器1は、連結部分で切り離し可能としておくと、利用しやすく、各容器について1個の密閉部材を設けても良いし、同一形状の開口予定部を備えている場合は、1個の密閉部材のみを設けても良い。
また、本発明の容器の製造方法では、密閉部材を製造する工程は、容器のキャビティを密封する工程と同時に行う場合に限定されない。例えば、密閉部材を容器1の底部に設ける場合は、容器の中空状部分の成形と同時であると、速やかに成形でき、好ましい。
【0036】
なお、密閉部材は、何度も使用可能な係合形態に限定されず、一回だけ使用できる形状としても良い。密閉部材を、本体部2の開口10に閉塞状に取りつけ、密閉部材自体を破壊することによって、再び開封できる形態としても良い。このような形態としては、例えば、開口面及び開口面周りの本体部側面を被覆するキャップ状に形成された密閉部材において、キャップの上面から端部まで厚みの薄い線状部分を二本平行して設け、その端部に更に突出する開封端を設けておくことができる。この密閉部材は、破壊によって開口された本体部2部分に外側から押し付けることで、本体部2の開口10部分に良好に係合し、キャビティ6を密閉状態に形成する。そして、再度キャビティ6を開放状態とするときには、開封端を引張って、厚みの薄い線状部分に沿って密閉部材の一部をちぎることによって、開封する。このような場合、密閉部材は、容器1に複数個設けられていると、内容物を数回に分けて使用できるとともに、開口10の衛生状態を良好に維持しやすいため、好ましい。
【0037】
また、密閉部材は、本体部側から完全に分離されなくても良い。紐状部分やヒンジ構造等によって密閉部材が開口を閉塞できるように移動可能に本体部に連結されていても良い。例えば、図1の容器1で、密閉部材4を連結して設ける場合、例えば、図7に示すように本体部2の胴部11の上部外面と、密閉部材4の把持部18と係合部16との間とに、繋がれた連結部25を成形しておくことができる。
【0038】
連結部25は、図7では、紐状に形成したが、密閉部材4が開口10を閉塞あるいは、閉塞解除できるように移動できるように連結できる形状であれば良い。図7で、連結部25は、密閉部材4と同様、破壊補助部3の一部として一体に成形されており、破壊補助部3と連結部25との境界には、切り込みが形成されて、分割されている。また、連結部25は、紐状に形成されているため、破壊補助部3内での形状に係らず、変形可能となっている。この密閉部材4は、本体部2を開口予定部8で破壊して形成される開口10を閉塞できるとともに、常に本体部2に一体的に設けられているため、紛失するおそれがない。また、本体部2に連結されているため、誤って破壊補助部3とともに破棄してしまうのを防ぐことができる。
【0039】
【発明の効果】
本発明では、内容物が封入された容器で、開封後もこの容器内に内容物を保管できる内容物封入容器を提供することができる。また、このような内容物封入容器を製造する方法を提供することができる。
【図面の簡単な説明】
【図1】図1(a)は、本発明の一実施の形態に係る内容物封入容器の平面図である。
図1(b)は、図1(a)の内容物封入容器をb−b線で破断した側断面図である。
図1(c)は、図1(a)の内容物封入容器をc−c線で破断した側断面図である。
【図2】図2(a)は、図1の内容物封入容器の開口予定部を破壊し、開口予定部から密閉部材を分離したときの状態を示す模式図である。
図2(b)は、図1の内容物封入容器の開口を密閉部材で閉塞した状態を示す一部を破断した平面図である。
【図3】図3は、図1の内容物封入容器を製造する装置の一実施の形態の模式的な断面図である。
【図4】図4は、図3の装置において、第一の金型を閉じ、内容物を注入している状態を示す断面図である。
【図5】図5(a)は、図3の装置において第二の金型を閉じた状態を示す断面図である。
図5(b)は、図3の装置において第二の金型を閉じた状態における密閉部材部分を示す断面図である。
【図6】図6は、図3の装置で図1に示す内容物封入容器を製造し、取り出す状態を示す断面図である。
【図7】図7(a)は、図1の容器において、密閉部材が連結部を介して本体部に連結されている形態を示す平面図である。
図7(b)は、図7(a)の容器において、本体部を開口予定部で破壊し、且つ密閉部材を破壊補助部から分離したときのようすを示す平面図である。
【符号の説明】
1 容器
2 本体部
3 破壊補助部
4 密閉部材
6 キャビティ
8 開口予定部
10 開口
12 注出用部
14 先端部
16 係合部
18 把持部
21 凸部
23 縁部
25 連結部
40,50 金型
60 上部開口保持部
70 樹脂押出成形機
80 内容物注入機
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a container in which a liquid, a viscous fluid, a granular material, and the like are sealed.
[0002]
[Prior art]
Liquids and fluids such as detergents and powders, pharmaceuticals and machine oils are sealed in plastic containers. The container in which these contents are enclosed is left open without molding the resin in the container's planned opening, and only the hollow part is molded by blow molding or vacuum molding, and then the contents are hollowed out. Fill the container with the contents. Then, the resin of the opening planned part of a container is shape | molded by airtight, and it becomes an integrally molded container with which the content was enclosed. Such a container can be manufactured at low cost, and the contents can be well stored in a sealed state with a simple structure.
[0003]
By the way, when taking out the content enclosed from these containers, the predetermined site | part of the container with which the content was enclosed is twisted off or cut | disconnected. For this reason, once opened, the contents cannot be stored in such a container. Therefore, in many cases, the contents are used up once or the rest are discarded.
[0004]
[Problems to be solved by the invention]
Therefore, in the present invention, it is an object to provide a contents-enclosed container in which contents can be stored even after opening in a container in which contents are enclosed. It is an object to provide a manufacturing method.
[0005]
[Means for Solving the Problems]
In order to solve the above problems, the present invention is a container in which contents are enclosed, and has a main body portion and a sealing member integrally formed with the main body portion, and the main body portion contains the contents. And a cavity that is formed in a hermetically sealed manner, and an opening that is formed to allow the contents to be removed from the cavity when broken, and the sealing member is separated from the opening The container is provided at a position and is connectable to the main body so as to close the opening that is broken and opened in the planned opening .
[0006]
According to this container, the contents are accommodated in the cavity of the container, and the cavity is formed in a sealed shape. And by destroying a main-body part by a scheduled opening part, a cavity can be formed in an open state and the contents can be taken out. After that, when storing the rest of the contents in the container, use the sealing member formed integrally with the container to seal the part that was opened by the destruction of the planned opening part. Can do. For this reason, it is possible to store the enclosed contents in the same container without using them all at once. Moreover, since all the parts are comprised by one shaping | molding, it is a container which can be manufactured by a simpler process.
[0007]
Moreover, it is the said content enclosure container, Comprising: The said sealing member provides the container connected with the said main-body part so that a movement is possible by the connection part integrally molded by the said main-body part .
In this container, since the sealing member can block the opening formed by breaking the main body portion with the planned opening portion and is always provided integrally with the main body portion, there is no possibility of being lost.
[0008]
Further, in any of the above-described contents-enclosed containers, a breakage assisting portion is formed around the planned opening portion, and a part of the breakage assisting portion is formed on the sealing member. A container is provided.
In this container, in the container in which the breakage assisting portion is formed around the planned opening portion, a part of the breakage assisting portion is formed on the sealing member. For this reason, the sealing member can be integrally formed while maintaining the same shape as the conventional one, and the sealing member is not easily disturbed. In addition, by forming a sealing member in the auxiliary assisting portion that has been discarded as it is after opening, it is possible to make a container that efficiently uses the material.
[0009]
In any of the above-described contents-enclosed containers, the sealing member includes a convex portion and an edge portion, and the convex portion is inserted into an opening formed by breaking the planned opening portion by press-fitting. And is formed so as to be engageable with the cavity side surface of the main body, and the edge is pressed against the outside of the broken portion when the convex portion is inserted into the opening. A container characterized by being provided.
In this container, since the sealing member has a simple structure including a convex portion and an edge portion, the sealing member is easily molded integrally with the container. Moreover, a favorable sealing state is formed by fixing a sealing member in the form which clamps the part formed in opening from both the cavity side and the external side.
[0010]
Further, in the present invention, the contents are injected from the open portion into the hollow portion of the intermediate molded body formed by molding a hollow portion including at least the bottom portion of the main body portion with a thermoplastic resin and holding the upper portion open. And a step of forming the open portion in a sealed state, and a method for manufacturing a container in which the contents are sealed, and after opening the sealed container, Provided is a method for manufacturing a content-enclosed container, wherein a sealing member that can be coupled to the main body so as to be closed again is formed integrally with the container at a position away from the opening portion .
In this method, the molding of the container, the injection of the contents, the sealing of the container, and the molding of the sealing member are performed in a series of steps. For this reason, a manufacturing line becomes short and manufacturing time can be shortened. In addition, since the sealing member can be formed of the same material at the same time, the efficiency is good.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a plan view of a content enclosing container according to an embodiment of the present invention. The container 1 has a main body 2 and a sealing member 4, and the whole is integrally formed of a thermoplastic resin. The contents are enclosed in the main body 2, and in this embodiment, liquid lubricating oil is enclosed.
[0012]
The contents are not limited to liquids, and may be in various forms such as solids such as powders and granules, viscous fluids, pastes, and the like. Moreover, these mixtures may be sufficient. Specifically, detergents, oils, medicines, foods, seasonings, and the like can be used as contents.
[0013]
The main body 2 has a cavity 6 and a planned opening 8. The cavity 6 is a portion for storing the contents, and is formed in a sealed shape. In the present embodiment, the main body 2 has a trunk portion 11 having a rectangular parallelepiped internal space, and has a tapered dispensing portion 12 with a smaller diameter at the top. And the upper end of the part 12 for extraction is constricted, and the spherical front-end | tip part 14 with a larger diameter is provided. The cavity 6 is formed by an internal space of the body portion 11, an internal space of the extraction portion 12 formed so as to communicate with the space, and a spherical space formed in the tip portion 14. It has become.
[0014]
The planned opening 8 is provided in a portion of the main body 2 where the cavity 6 is formed, and is a portion where the opening 10 is formed by being broken when the contents are taken out. The planned opening 8 can be provided in various parts and shapes. Further, the specific portion of the main body 2 is not designated, and the entire portion of the main body 2 that is formed into a thin tubular shape is used. good. It is preferable that the planned opening portion 8 is formed in a fragile portion such as a constriction or a notch because it can be easily broken.
The form of destruction of the planned opening 8 is not particularly limited, and may be a form using a tool such as scissors, a cutter or a cone, or a form that does not require a tool and can be broken only by pulling or twisting by hand. .
[0015]
In the present embodiment, the boundary portion between the extraction portion 12 and the tip portion 14 of the main body 2 is formed in the planned opening portion 8. The upper end of the extraction portion 12 is formed in the opening 10 by being broken in a cut shape so that the extraction portion 12 and the tip portion 14 are separated from each other at the planned opening portion 8. .
[0016]
As shown in FIG. 1A, the destruction assisting portion 3 is provided around the planned opening portion 8. The destruction assisting portion 3 is integrally formed with the main body portion 2 and can be separated together with a portion separated from the main body portion 2 on the side where the contents are accommodated by destruction of the planned opening portion 8. The shape of the destruction assisting portion 3 can take various shapes such as a plate shape, a rod shape, and a spherical shape.
[0017]
In this embodiment, as shown in FIGS. 1A and 1B, the breakage assisting portion 3 is formed in a flat plate shape that is reinforced by increasing the thickness of the edge, and the distal end portion 14 of the main body portion 2. To the periphery of the main body 2 extending from the extraction portion 12 to the extraction portion 12. The breakage assisting portion 3 is formed in close contact with the distal end portion 14 and is integrally connected to the upper outer surface of the body portion 11 by a thin plate portion. A thin notch 3a is formed between the breakage assisting portion 3 and the outer surface of the dispensing portion 12 so as to be easily separated.
[0018]
The sealing member 4 is a member that forms the cavity 6 in which the main body portion 2 is broken and opened in the planned opening portion 8 in a sealed state, and is a portion that is formed integrally with the container main body portion 2. That is, the sealing member 4 is formed in a shape that can close the opening 10 formed by breaking the planned opening 8. Moreover, the sealing member 4 is made into the shape couple | bonded with the main-body part 2 with a various coupling | bonding form. For example, a threaded portion that forms a pair with the main body portion 2 and the sealing member 4 can be formed so as to be able to be screwed, or a corresponding concave portion and convex portion can be provided so as to be able to be fitted. With such a coupling form, the sealing member 4 is fixed to the main body 2 of the container in a state where the opening 10 formed in the main body 2 is closed.
[0019]
The sealing member 4 can be disposed at various sites such as the bottom, side, and top of the main body 2. The shape of integral molding of the sealing member 4 and the container body 2 side can take various forms. For example, the sealing member may be provided directly on the outer surface of the container main body part, or provided via a fragile connecting part such as a rod-like part, a plate-like part, or a string-like part extending from the container main body part toward the sealing member. Also good. It is preferable to provide an intervening portion between the main body 2 and the sealing member 4 because there is no possibility that the main body 2 is broken and the cavity 6 is opened when the sealing member 4 is separated. Moreover, when the sealing member 4 is formed as a part of the breakage assisting portion 3 as shown in FIG.
[0020]
The sealing member 4 may be completely separable from the main body 2 side or may be partially connected to the main body 2. In any case, the sealing member 4 is movable so that the opening 10 formed by breaking the main body 2 with the planned opening 8 can be closed. The form which isolate | separates the sealing member 4 from the main-body part 2 side can take the various forms similar to the form which discards the main-body part 2 by the opening scheduled part 8. FIG. The shape may be cut using scissors, a cutter, or the like, or may be in a form that does not use tools such as cutting and screwing.
[0021]
In the present embodiment, the sealing member 4 is formed as a part of the breakage assisting portion 3 as shown in FIGS. The sealing member 4 includes an engaging portion 16 that can be engaged with a portion of the opening 10 formed by breaking the main body portion 2 with the planned opening portion 8, and a grip portion 18.
[0022]
The engaging portion 16 has a convex portion 21 and a thin plate-like edge portion 23. The convex portion 21 is formed so as to be able to be inserted into the extraction portion 12 by being pressed against the opening 10 formed on the upper surface of the extraction portion 12 after being broken. When the convex portion 21 is disposed inside the extraction portion 12, the convex portion 21 has a shape that presses against the inner wall of the extraction portion 12 around the opening 10.
The edge portion 23 is formed continuously with the convex portion 21. The edge portion 23 is a portion that is pressed against the outer surface of the extraction portion 12 around the opening 10 when the convex portion 21 is disposed in the extraction portion 12.
As shown in FIGS. 1A and 1C, the grip portion 18 is a portion formed in a thin plate size that allows a person to be sandwiched between fingers, and faces the convex portion 21 with the edge portion 23 interposed therebetween. In the position.
[0023]
As shown in FIG. 1, in the sealing member 4, only the end portion of the breakage assisting portion 3 and the most protruding portion of the convex portion 21 among the portions in contact with the breakage assisting portion 3 are connected by a thin plate-like connecting portion. In the same manner as the breakage assisting portion 3, a cut 4 a is formed and separated at a portion where the sealing member 4 other than the above and the breakage assisting portion 3 are in contact with each other.
[0024]
When the content enclosed in the container 1 is taken out, as shown in FIG. 2A, the main body 2 is broken at the planned opening 8 to form the opening 10. In the present embodiment, holding the main body 2 and the breakage assisting portion 3 with separate hands, centering on the planned opening portion 8 that is the boundary portion between the extraction portion 12 and the tip portion 14 of the main body 2, Rotate around the major axis of the main body 2 and twist. By this operation, the breakage assisting portion 3 and the distal end portion 14 of the main body portion 2 are separated from the main body portion 2. In this embodiment, since the notch 3a is made between the main body 2 and the destruction assisting portion 3 or the connecting portion is formed in a thin plate shape, the destruction assisting portion 3 is easily separated from the main body 2. The tip portion 14 and the dispensing portion 12 can be separated. When the distal end portion 14 is separated, the opening 10 is formed at the upper end of the dispensing portion 12, and the contents in the cavity 6 can be taken out from the opening 10 satisfactorily.
[0025]
When it is desired to form the cavity 6 of the container 1 again in a sealed state, as shown in FIG. 2A, the destruction assisting portion 3 and the sealing member 4 are held by separate hands and threaded, and the sealing member 4 is removed from the destruction assisting portion. Separate from 3. Then, by holding the grip portion 18 of the sealing member 4 by hand and pressing the convex portion 21 against the opening 10 of the planned opening portion 8, the extraction portion 12 around the opening 10 is elastically deformed to open the convex portion 21. Pass through part 8. At this time, as shown in FIG. 2B, the sealing member 4 is fixed in a state where the projected opening portion 8 around the opening 10 is sandwiched between the convex portion 21 and the edge portion 23.
[0026]
Thus, the container 1 can store and hold the contents in a well-sealed state in the integrally formed sealed space. When it is desired to take out the contents, the main body 2 is broken at the planned opening 8 and the tip 14 is separated from the other parts of the main body 2. As a result, the cavity 6 can be opened and the opening 10 can be formed, and the contents can be taken out satisfactorily.
[0027]
Then, the cavity 6 can be formed in a sealed state again by separating the sealing member 4 integrally formed in the container 1 from the destruction assisting portion 3 and closing the opening 10 with the sealing member 4. For this reason, the contents remaining unused in the cavity 6 can be stored in the container 1.
In particular, in the sealing member 4 of the present embodiment, the sealing member 4 is fixed by sandwiching the end edge on the cavity 6 side and the outer end edge of the opening 10. For this reason, it is possible to satisfactorily prevent the outside air from flowing into the cavity 6 and to seal it, and the contents can be stored in a good storage state. Further, since the outer edge of the opening 10 is covered with the edge 23, the opening 10 is not easily contaminated, and impurities such as dust and dust are not easily mixed when the contents are taken out from the opening 10.
[0028]
Next, a method for manufacturing the container 1 of the present embodiment will be described with reference to FIGS. The container according to the present invention can be formed by various methods that can be formed into a hollow shape, such as vacuum forming or blow molding. In this specification, a case of manufacturing by vacuum forming will be described.
[0029]
As shown in FIG. 3, the mold for manufacturing the container 1 according to the present embodiment is for molding a body portion 11 of the main body portion 2 and a part of the dispensing portion 12 (main portion of the cavity 6). The second mold for forming the first mold 40, the remaining part of the main body 2 (part of the pouring part 12 and the tip part 14), the breakage assisting part 3, and the sealing member 4. And a mold 50. A second mold 50 is provided in the vicinity of the upper part of the first mold 40. An upper opening holding portion 60 of softened resin formed in a tubular shape is disposed above the second mold 50, and the resin extrusion molding machine 70 and the contents are placed on the center axis of each mold 40, 50. An injector 80 is movably provided. Further, the content injection machine 80 is movable up and down on the central axis of each mold 40 and 50.
Although not shown, vacuum forming means is provided that can form a space between the first mold 40 and the second mold 50 and the molding resin in a vacuum state.
[0030]
To manufacture the container 1, as shown in FIG. 3, the first mold 40 and the second mold 50 are opened, and the resin extrusion molding machine 70 is placed on the center axis of each mold 40, 50. The soft thermoplastic resin formed into a tubular shape between the molds 40 and 50 is supplied.
Next, as shown in FIG. 4, the first mold 40 is closed and a vacuum state is created by the vacuum forming means, and a part (cavity 6) of the body portion 11 and the portion for dispensing 12 is vacuum formed. By closing the first mold 40, the lower end of the tubular resin is closed and molded at the bottom of the main body 2, and most of the hollow portion of the container 1 is molded. At the same time as this step, the extruded softening resin is cut off from the resin extrusion molding machine 70, and the upper end of the tubular softening resin is attached to the upper opening holding portion 60 and held in an open state.
[0031]
After the hollow portion of the container 1 is formed, the contents are charged. In the present embodiment, as shown in FIG. 4, first, the content injection machine 80 is disposed on the central axis of each mold 40, 50. Next, the tip of the content injection machine 80 is lowered until it reaches almost the same height as the upper end of the first mold 40, and the nozzle 81 is extended from the tip of the content injection machine 80, so that the first mold 40. Then, a predetermined amount of content is put into the cavity 6 formed in the first mold 40 from the nozzle 81.
[0032]
After the contents are charged, the nozzle 81 is recovered in the contents injector 80 and the contents injector 80 is raised. Then, as shown in FIG. 5, by closing the second mold 50 and creating a vacuum state with the vacuum forming means, the remaining part of the pouring part 12 of the main body part 2, the tip part 14, the breakage assist The part 3 and the sealing member 4 are molded. At this time, as shown in FIG. 5 (a), the cavity 6 is formed to communicate with the distal end portion 14 through the extraction portion 12 of the planned opening portion 8 and is completely sealed by the distal end portion 14. By this step, the internal space in which the contents are accommodated is formed in a sealed shape. Moreover, as shown in FIG.5 (b), the sealing member 4 is shape | molded by the mold fitting surface of the 2nd metal mold | die 50 in a solid shape.
[0033]
Finally, as shown in FIG. 6, the 1st metal mold | die 40 and the 2nd metal mold | die 50 are opened, and the sealed container 1 with which the content was enclosed is taken out. Thereafter, processing such as deburring can be appropriately performed.
[0034]
As described above, the container 1 can perform molding of a container, injection of contents, sealing, and molding of a sealing member at a time on a series of production lines. For this reason, a manufacturing line is short and it can manufacture in a short time. In addition, since the container can be molded, the contents are poured, and sealed continuously, hygiene management and the like can be easily performed. In addition, since the sealing member can be molded simultaneously with the same material, it can be manufactured at a much lower cost than when the sealing member is manufactured on a separate line. Because it is integrated with, it does not take time.
[0035]
In addition, the content enclosure of the present invention is not limited to that of the above embodiment.
The shape of the container is not limited to the above embodiment, and can take various forms. For example, it is good also as a shape which connected the said container 1 in multiple numbers by each side. In this case, it is easy to use each container 1 if it can be separated at the connecting portion, and one sealing member may be provided for each container. Only one sealing member may be provided.
Moreover, in the manufacturing method of the container of this invention, the process of manufacturing a sealing member is not limited to when performing simultaneously with the process of sealing the cavity of a container. For example, when the sealing member is provided at the bottom of the container 1, it is preferable that the sealing member be formed simultaneously with the formation of the hollow portion of the container.
[0036]
In addition, the sealing member is not limited to the engagement form that can be used many times, and may have a shape that can be used only once. It is good also as a form which can be opened again by attaching a sealing member to the opening 10 of the main-body part 2 in the obstructive form, and destroying sealing member itself. As such a form, for example, in a sealing member formed in a cap shape covering the opening surface and the side surface of the main body around the opening surface, two thin linear portions from the top surface to the end of the cap are paralleled. And an open end protruding further at the end. This sealing member presses against the portion of the main body portion 2 opened by breakage from the outside, thereby favorably engaging with the opening 10 portion of the main body portion 2 to form the cavity 6 in a sealed state. When the cavity 6 is opened again, the opening is pulled by pulling the opening end and tearing off a part of the sealing member along the thin linear portion. In such a case, it is preferable to provide a plurality of sealing members in the container 1 because the contents can be used in several times and the hygienic state of the opening 10 can be easily maintained well.
[0037]
Further, the sealing member may not be completely separated from the main body side. The sealing member may be movably connected to the main body so that the opening can be closed by a string-like portion or a hinge structure. For example, when the sealing member 4 is connected and provided in the container 1 of FIG. 1, for example, as shown in FIG. 7, the upper outer surface of the body portion 11 of the main body 2, the gripping portion 18 of the sealing member 4, and the engaging portion The connected connecting portion 25 can be formed between the two.
[0038]
Although the connecting portion 25 is formed in a string shape in FIG. 7, it may have any shape that can be connected so that the sealing member 4 can move so as to close or release the opening 10. In FIG. 7, the connecting portion 25 is integrally formed as a part of the destruction assisting portion 3, similarly to the sealing member 4, and a cut is formed at the boundary between the destruction assisting portion 3 and the connecting portion 25, It is divided. Moreover, since the connection part 25 is formed in the shape of a string, it can be deformed regardless of the shape in the breakage assisting part 3. Since this sealing member 4 can block the opening 10 formed by breaking the main body 2 with the planned opening 8 and is always provided integrally with the main body 2, there is no risk of losing it. Moreover, since it is connected to the main body 2, it can be prevented from being discarded together with the destruction assistant 3 by mistake.
[0039]
【The invention's effect】
In the present invention, it is possible to provide a content-enclosed container in which the content is enclosed, and the content can be stored in the container even after opening. Moreover, the method of manufacturing such a content enclosure can be provided.
[Brief description of the drawings]
FIG. 1 (a) is a plan view of a content enclosure according to an embodiment of the present invention.
FIG.1 (b) is the sectional side view which fractured | ruptured the content enclosure of FIG. 1 (a) by the bb line.
FIG.1 (c) is the sectional side view which fractured | ruptured the content enclosure of FIG. 1 (a) by the cc line.
FIG. 2A is a schematic diagram showing a state when the planned opening portion of the content enclosure of FIG. 1 is broken and the sealing member is separated from the planned opening portion.
FIG. 2B is a plan view, partly broken, showing a state in which the opening of the content enclosure of FIG. 1 is closed with a sealing member.
FIG. 3 is a schematic cross-sectional view of an embodiment of an apparatus for producing the content enclosure of FIG.
4 is a cross-sectional view showing a state in which the first mold is closed and contents are injected in the apparatus of FIG. 3; FIG.
5A is a cross-sectional view showing a state in which the second mold is closed in the apparatus of FIG. 3. FIG.
FIG. 5B is a cross-sectional view showing a sealing member portion in a state where the second mold is closed in the apparatus of FIG.
6 is a cross-sectional view showing a state in which the content enclosure shown in FIG. 1 is manufactured and taken out by the apparatus shown in FIG.
7 (a) is a plan view showing a form in which the sealing member is connected to the main body portion via the connecting portion in the container of FIG. 1. FIG.
FIG.7 (b) is a top view which shows a state when the main-body part is destroyed by the opening scheduled part and the sealing member is isolate | separated from the destruction assistance part in the container of Fig.7 (a).
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Container 2 Main-body part 3 Destruction assistance part 4 Sealing member 6 Cavity 8 Planned opening part 10 Opening 12 Extraction part 14 Tip part 16 Engagement part 18 Grasping part 21 Protrusion part 23 Edge part 25 Connection part 40,50 Mold 60 Upper opening holding part 70 Resin extrusion molding machine 80 Contents injection machine

Claims (5)

内容物が封入された容器であって、
本体部とこの本体部に一体成形された密閉部材とを有し、
前記本体部は、内容物が収容されて密閉状に成形されたキャビティと、破壊されることによって前記内容物を前記キャビティから取り出し可能とする開口が形成される開口予定部とを備え、
前記密閉部材は、前記開口予定部から離れた位置に設けられて、前記開口予定部の前記破壊されて開放される開口を閉塞するように前記本体部に結合可能である、容器。
A container filled with contents,
A main body and a sealing member integrally formed with the main body ,
The main body includes a cavity in which the contents are accommodated and formed in a hermetically sealed manner, and a planned opening in which an opening that allows the contents to be taken out from the cavity by being broken is formed .
The said sealing member is a container which is provided in the position away from the said opening scheduled part, and can be couple | bonded with the said main-body part so that the said opening opened by destruction may be obstruct | occluded.
前記密閉部材は、前記本体部に一体成形された連結部によって前記本体部に移動可能に連結されていることを特徴とする請求項1記載の容器。The container according to claim 1, wherein the sealing member is movably connected to the main body portion by a connecting portion integrally formed with the main body portion . 前記開口予定部の周囲に破壊補助部が形成されており、
前記破壊補助部の一部が前記密閉部材に形成されていることを特徴とする請求項1又は2に記載の容器。
A destruction assisting part is formed around the planned opening part,
The container according to claim 1, wherein a part of the breakage assisting part is formed on the sealing member.
前記密閉部材は、凸部と縁部とを備え、
前記凸部は、前記開口予定部が破壊されて形成される開口に、圧入によって挿入可能とされるとともに、前記本体部の前記キャビティ側の面に係止可能に形成され、
前記縁部は、前記凸部が前記開口に挿入されているときに前記破壊された部分の外側に圧接されることを特徴とする請求項1から3のいずれかに記載の容器。
The sealing member includes a convex portion and an edge portion,
The convex portion is formed to be able to be inserted by press-fitting into an opening formed by destroying the planned opening portion, and to be engageable with the surface of the main body portion on the cavity side,
The container according to any one of claims 1 to 3, wherein the edge is pressed against the outside of the broken portion when the convex portion is inserted into the opening.
熱可塑性樹脂で、少なくとも本体部の底部を含む中空状部分を成形して上方を開放状に保持した中間成形体の前記中空状部分に、前記開放部分から内容物を投入する工程と、
前記開放部分を密閉状に形成する工程とを有する、内容物が封入された容器を製造する方法であって、
前記密閉状に形成された容器を開封した後、この開封部分を再び閉塞するように前記本体部に結合可能な密閉部材を、当該開封部分から離れた位置に前記容器と一体に成形することを特徴とする内容物封入容器の製造方法。
The step of charging the contents from the open portion into the hollow portion of the intermediate molded body formed by molding a hollow portion including at least the bottom portion of the main body portion with a thermoplastic resin and holding the upper portion open.
A method of manufacturing a container in which the contents are enclosed, including the step of forming the open portion in a sealed state,
After the container formed in the sealed state is opened, a sealing member that can be coupled to the main body is formed integrally with the container at a position away from the opened part so as to close the opening part again. A method for producing a content-enclosed container.
JP2000234744A 2000-08-02 2000-08-02 Contents enclosure container and contents enclosure container manufacturing method by contents enclosure simultaneous molding Expired - Lifetime JP3678983B2 (en)

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JP5154367B2 (en) * 2008-10-30 2013-02-27 株式会社吉野工業所 Thin walled container
JP6180442B2 (en) * 2012-02-10 2017-08-16 ディスクマ アーゲーDiscma Ag Blow molding, filling and capping methods for containers
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