JP3959539B2

JP3959539B2 - Screw cover with anti-slip part

Info

Publication number: JP3959539B2
Application number: JP37557399A
Authority: JP
Inventors: 弘幸中村; 治夫土田
Original assignee: Yoshino Kogyosho Co Ltd
Current assignee: Yoshino Kogyosho Co Ltd
Priority date: 1999-12-28
Filing date: 1999-12-28
Publication date: 2007-08-15
Anticipated expiration: 2019-12-28
Also published as: JP2001180705A

Description

【０００１】
【発明の属する技術分野】
本願の発明は、中空容器の口頸部に着脱自在に螺合する蓋体に係わるもので、中でも、中空容器の口頸部をネジの螺合作用により密封した蓋体を、弱い力て捻じっても容易に開封することができるネジ蓋体に関するものである。
【０００２】
【従来の技術】
従来から用いられてきた中空容器の開口部の密閉手段としては、酒類や醤油等、あるいは、各種清涼飲料やジュース等を収容したガラス壜に於いては、コルク栓や王冠を用いて密封したものが一般的であったので、これらの密閉蓋を開けるには、それぞれ開封用の道具を用いて開けていた。
しかし、食生活が豊かになるにつれて、酒類のみならずジュース等の飲料が大量に消費されるようになるのに伴って、これらを収容した容器の密封にネジ蓋が用いられるようになってきた。
【０００３】
その理由としては、ネジ蓋を用いた密封容器は、特別な開封道具を用いることなしに、指先で蓋部を掴んで左方向または右方向のどちらか一方に回転させることにより、容器の開封または密閉を簡単に行うことができるという利便性があること、特に、大型の容器に収容した大量の内容物を使い切ることができない場合には、再び容器の口を容易に密閉することができるからである。
【０００４】
ところが、これら従来から用いられているネジ蓋は、薄い金属板をロール加工その他の手段によりネジ加工を行って成形したものであり、その大半は表面が滑らかな金属面のまま成形されたものであったから、開封に際して指先で蓋を捻じろうとすると、どうしても指が滑り易くて開封しにくい場合があった。
そして、このように素手で蓋を開封するのが困難な場合には、ゴムや布等の滑りの少ないもので蓋部の外周面を覆って、その上から蓋体を捻じる操作を行って開封する等のやや面倒な手段を採らなければならないことがあった。
【０００５】
そこで、上記のようにネジ蓋体が強く密閉されて開けにくい中空容器に於いても、ゴム等の補助手段を用いることなしに、素手でネジ蓋を捻じって容易に回転させて開封できるようにするために、指先と蓋体との間の摩擦力を高くしておいて手先が滑ることがないようにするための手段が色々と考案されている。
【０００６】
例えば、金属製のネジ蓋に於いては、従来同様にロール加工等の手段により金属板を加工する際に、図８に示したように、ネジ蓋５１の胴部５２外周面の上端部分や下端部分等の適当な場所に、縦方向の浅い溝状の凹凸部５２ａ，５２ｂを形成して滑り止めとなすと共に、下部の凹凸部の下に容易に破断可能なミシン目等の切断線５２ｃを形成したものが、実開昭４９−１２８６６３号や特開平８−２３０９１１号公報等に提案されている。
あるいは、図９に示したように、ネジ蓋６１の胴部６２外周面にゴム等を積層した軟質層６３を設けておくことにより、ネジ蓋をゴム等の摩擦力の大きなもので包まなくても、ネジ蓋６１を容易に回すことができるようにしたものが、実開昭４８−１１１５４３号や実公昭５１−２１０１号公報等に記載されている。
【０００７】
しかし、このようにネジ蓋の外側面に多数のぎざぎざの凹凸部やゴム層等を形成して、滑りにくくしたネジ蓋体で密封した容器は、ある程度は便利ではあるが、金属蓋に単に凹凸面を設けたものは指先に密着しにくくて、また、蓋体の表面に単にゴム層を設けたものは指先に密着はするが、指の引っ掛かりが弱くて力を入れにくい。
従って、容器を初めて開封しようとする場合や、ネジ蓋がきつく締められていたりする場合に、ネジ蓋を開封しようとすると、どうしても蓋を開封するには大きな捻じり力を必要とすることがあり、そのような場合には握力の弱い子供や老人、特に、病人や手が不自由な人達にとっては、蓋を開閉するのが困難で苦になることがり、改良の余地があった。
【０００８】
更に、近年の社会状況の変化や生活環境面の変化と共に、食生活の面でもゆとりのある変化が見られるようになつて、酒類等の嗜好品と共に清涼飲料やスポーツ飲料等が大量に消費されるようになると同時に、健康医療や美容に関係した飲食品の消費量が増えるにつれて、それらを収容する容器もガラス類に代わって合成樹脂製の中空容器が用いられるようになった。
それには、中空容器を成形可能な新しい合成樹脂材料の出現とそれを用いて容器を成形する成形技術の進歩とがあり、また、実社会に於ける物流の面から重量があって、破損し易いガラス等の容器よりも、軽量で破損しにくくて、成形が容易で且つ安全であるポリエチレンテレフタレート（ＰＥＴ）樹脂製等の中空容器が多用されるようになり、そのほとんどのものがネジ蓋を用いて密封された容器である。
【０００９】
ところが、このように各種の清涼飲料やジュースその他の飲食品が大量に消費されるようになったのと時を合わせるように、最近になって、これらの飲食品が収容された容器を、一見しただけでは分からないように巧妙に開封してから、その中にわざと人体に有害な物質を混入したものを自動販売機等に放置しておいて、有害物質が混入している容器とは知らない他人にその内容物を飲ませるような悪戯事件が発生するようなことが稀に見られるようになった。
【００１０】
そこで、このような社会的に恐怖を与えるような悪戯が発生するのを防止するために、容器が一度開封された後には、開封されたことがすぐに判別できるようにした不正開封の防止策が色々と採られるようになり、その一つの手段として、封印手段をも兼ね備えた捻じ切り式の蓋体により密封する方法が採られるようになった。
その代表的なものとしては、図１０に示したように、蓋体７１は、容器本体の開口部を塞ぐ頂壁部７２ａと口頸部の螺旋ねじに螺合する胴部７２ｂと口頸部に締めつける固定部７２ｃとから形成されおり、そして、前記胴部７２ｂと固定部７２とはミシン目等の脆弱部７２ｄにより容易に切断可能に連結すると共に、胴部７２ｂの表面には縦方向に浅い筋状に形成した滑り止め部７２ｃを設けるようにして、射出成形により一体に形成されたものである。
【００１１】
このように成形した捻じ切り蓋を容器の口頸部に螺着して密封された容器を開封するには、蓋体を捻じって脆弱部７２ｄを切断しなければならないが、一度捻じ切られて破断したミシン目等の脆弱部は、再び接合することは不可能であるから、上記のような捻じ切り式の蓋体を用いた容器が、開封されたか、どうかを見分けることは簡単にできる。
しかし、このような筋状の滑り止め７２ｃを設けた捻じ切り式のネジ蓋７１を用いて密封された中空容器であっても、薬品や食品等を収容した容器は、従来のものよりは幾分きつく密封されている傾向があり、このような密封容器の蓋体をネジ切って初めて開封しようとすると、やや大きな捻じり力が必要となるので、尋常な人でも手が水や汗で濡れていたり、手に洗剤や化粧品その他の油性物が付いていたり、あるいは、手袋をはめていたりすると、筋状の滑り止めでは密着性が不十分で、手が滑って蓋を回して開封するのが困難な場合があった。
【００１２】
【発明が解決しようとする課題】
本願の発明は、上記したような従来の蓋体の問題点や難点を解消して、ガラス容器や合成樹脂容器等の種類を問わず、各種の中空容器の開口部を密封するのに適用可能なネジ蓋体を形成すると共に、該蓋体により密封された容器を開封するには、特別な道具を使う必要がなくて、握力の弱い子供や老人、手が不自由な人であっても、手先との密着性が良くて、弱い力で容易に蓋を捻じって開閉することができる構造をした蓋体を提供することを目的とする。
【００１３】
【課題を解決するための手段】
本願の発明は、壜状体その他の中空容器の口頸部に形成されたネジ山に螺合せしめて、該中空容器の開口部を密封するネジ蓋に於いて、ネジ蓋が弱い力であっても容易に捻じって開閉することができるように、該ネジ蓋の外側面にエラストマー樹脂等の軟質材からなる滑り止め部を設けられたネジ蓋を形成するために、前記ネジ蓋を容器の口頸部のネジに螺合するネジ部を形成した硬質材からなる筒状の内層蓋部材と、該内層蓋部材の外表面を覆うように被せた密着性が良い軟質材からなる滑り止め部を有する中間層部材と、該中間層部材を覆うように被せると共に前記滑り止め部が変形しないように突出せしめた硬質材からなる外層蓋部材とからなる三層構造で蓋体を構成することにより、滑り止めを有するねじ蓋を形成する。
【００１４】
【発明の実施の態様】
ブロー成形により形成した中空容器の口頸部の外ねじ部に螺合する内ねじを設けた筒状の蓋体内層部を、硬質の合成樹脂の射出成形により成形して、前記内層部に嵌合可能な蓋体中間層部の表面に滑り止め部となる縦方向の筋状を設けたものを、エラストマー樹脂等の軟質の合成樹脂を射出成形して形成して、前記中間層蓋部に嵌合されて、前記滑り止め部が突出するスリットを設けた蓋体外層部を、硬質の合成樹脂の射出成形により成形して、本願発明の蓋体を構成するための各部材をそれぞれ成形する。
【００１５】
次に、前記のように形成した筒状の蓋体内層部の上に、エラストマー樹脂からなる前記蓋体中間層部を嵌合せしめて二層構造の蓋体に形成して、更に、前記二層構造にした蓋体中間層部の上に、前記滑り止め部がスリットから突出するように前記蓋体外層部を嵌合せしめると共に、前記蓋体内層部の下端部の外周面に形成したネジ部に前記蓋体外層部の下端部の外周内面に形成したネジ部を螺合して一体化せしめて三層構造をした蓋体に構成してから、該蓋体を液体等の内容物を収容した中空容器の口頸部のネジ部に螺合して、滑り止め付きのネジ蓋体を有する密封容器となす。
このようにして、本願発明のネジ蓋により密封された中空容器は、蓋体の外周面にエラストマー樹脂からなる滑り止めが設けられているので、ネジ蓋を手先で容易に捻じ回すことができて、簡単に開封することができる。
【００１６】
【発明の実施の形態】
以下に、本願の発明について、最適な一つの実施例に基づいて、図面を参照しつつ詳細に説明する。
実施例１．
本願の発明は、図１に示すように、中空容器２の開口部を密封する蓋体の外周面に滑り止め部４ｅを設けたネジ蓋１に関するものであって、本願発明の蓋体１は、図に示したように、容器２の口頸部２ａに螺合密着するように筒状をした硬質材からなる内側層部分５と、該内側層に嵌合する滑り止め部４ｅを有した軟質材からなる中間層部分４と、該滑り止め部４ｅを保持するように中間層部分４に嵌合する硬質材からなる外側層３との三層構造で構成されるものである。
【００１７】
前記した蓋体の内側層、中間層及び外側層を構成する各層の部材は、それぞれの作用特性に適合した合成樹脂材料を選択したものを射出成形することにより、それぞれの所定形状に成形される。
前記内側層部分５は、図３に示すように、中空容器２の口頸部２ｂに嵌合する筒状部５ｂと開口部２ａを塞ぐ頂壁部５ａと容器の肩部２ｃに密着する鍔部５ｃとからなり、前記筒状部５ｂの内周面には口頸部２ｂのネジ山２ｄに螺合するネジ部が形成されていて、また、前記鍔部５ｃの外周面には中間層部分４を挟持して外側層部分３と結合するネジ山５ｄが形成されている。
【００１８】
そして、前記中間層部分４は、内側層部分の筒状部５ｂに嵌合する嵌合筒部４ｂと該嵌合筒の表面に縦長のリブ状に突起した滑り止め片４ｅと前記内外層の鍔部５ｃ，３ｃで挟持される鍔状片４ｃとからなり、また、前記外側層部分３は、中間層の筒状部４ｂに嵌合すると共に滑り止め片４ｅを保持するための縦長のスリット３ｅを形成した筒状部３ｂと中間層の鍔状片４ｃを挟着して内側層の鍔部５ｃに螺合するネジ部を設けた鍔部３ｃとから形成されている。
【００１９】
上記のように成形された蓋体の各構成部材３，４，５は、以下のようにして蓋体１として組み立てることができる。
硬質の合成樹脂材からなる蓋体内層部材５に、手に密着し易い軟質の合成樹脂材からなる前記中間層部材４を嵌合して密着させた二重構造に形成してから、該二重構造の部材上に、硬質の合成樹脂材からなる前記外層部材３を中間層の滑り止め片４ｅがスリット３ｅから突出するように嵌着せしめてから、該外層部材３を回動することにより内層部材の鍔部５ｃの外周面のネジ部５ｄに外層部材の鍔部３ｃの内周面のネジ部を螺着せしめて、図２に示すように、前記中間層部材４を内外層部材５，３間に圧着、固定するようにして組み立てることにより、滑り止め付きのネジ蓋体１に構成する。
【００２０】
上記のようにして構成された本願発明の滑り止め付きのネジ蓋体１が、内容物が充填された中空容器２の口頸部２ａに螺合されると、図１に示したように、容器の開口部が密封された密封容器Ａが形成される。
このように密封された容器Ａを開封するには、片手で容器本体２を持ってから、もう一方の手の指先で蓋体１を掴んで捻じると、指先にはエラストマー等の軟質樹脂からなる滑り止め片４ｅが密着すると共に、該滑り止め片は硬質樹脂からなる外層部材のスリット３ｅで保持されて変形することがないので、指先が滑ることもなく容易に蓋体１を回動させることができて、密封容器を簡単に開封することができる。
【００２１】
実施例２．
本願発明は、単なるねじ式の密閉蓋にだけでなくて、スポイトの注出機能を備えたネジ蓋を形成するのにも応用することが可能である。
スポイトの注出機能を備えたネジ蓋は、基本的には実施例１と同様に構成される蓋体であって、図５に示すように、容器本体２２の口頸部２２ａに密着する硬質材からなる内側層部分２５と、滑り止め部及び膨出部を形成する軟質材からなる中間層部分２４と、滑り止め部を保持する硬質材からなる外側層部分２３とからなる三層構造で構成される蓋体２１の本体に吸い上げ管２６を接続して、スポイトの注出機能を有する蓋体を形成する。
【００２２】
上記蓋体２１を構成する各部材は、図６に示すように、蓋体の前記内側層部分２５を、中空容器２２の口頸部２２ｂに螺合する筒状部２５ｂと開口部２２ａに密着する頂壁部２５ａと容器の肩部２２ｃに密着する鍔部２５ｃとから形成して、前記筒状部２５ｂの内周面には吸い上げ管２６を固定する嵌合支持部と容器口頸部２２ｂのネジ山２２ｄに螺合するネジ部が形成されると共に、鍔部２５ｃの外周面には中間層を間に挟んで外側層部分２３と螺合するネジ山２５ｄが形成されており、また、前記頂壁部２５ａには中央部に小孔２５ｆが穿たれている。
【００２３】
そして、前記中間層部分２４を、前記内側層２５の筒状部２５ｂに嵌合する嵌合筒部２４ｂとポンプ作用をするための押圧変形が可能な膨出形部２４ｆを形成した頂壁部２４ａと内外層の鍔部２３ｃ，２５ｃ間に挟持される鍔状片２４ｃとから形成して、前記嵌合筒２４ｂの側壁面にはリブ状に突起した縦長の滑り止め片２４ｅが形成されている。
【００２４】
更に、前記外側層部分２３を、前記中間層２４の筒状部２４ｂに嵌合して固定する固定筒状部２３ｂと中間層２４の鍔状片２４ｃを内側層の鍔部２５ｃに圧着する鍔部２３ｃとから形成して、前記固定筒状部２３ｂの側壁部には前記中間層の滑り止め片２４ｅが突出する縦長のスリット２３ｅが形成されると共に、固定筒状部の頂壁部２３ａには前記中間層２４の頂壁が膨出した部分２４ｆが突出する開口２３ｆが形成され、また、鍔部２３ｃの内周面には内側層の鍔部２５ｃのネジ山２５ｄに螺合するネジ部が形成されている。
【００２５】
上記のように成形された蓋体の各構成部材は、以下のようにして組み立てられて蓋体に形成される。
前記硬質の合成樹脂材から成形されてなる内層部材２５の筒状部２５ｂに吸い上げ管２６の上端部を嵌合、固定すると共に、その上から前記のように形成された軟質の合成樹脂材からなる中間層部材２４を嵌合して密着せしめて二重構造に形成する。
【００２６】
次に、前記二重構造部材の上に、更に前記硬質の合成樹脂材からなる外層部材２３を嵌合せしめる際に、中間層部材２４の側壁部の滑り止め片２４ｅを筒状部２３ｂのスリット部２３ｅから突出せしめると共に頂壁部の膨出部２４ｆを頂壁開口部２３ｆから突出せしめて嵌合して、該外層部材２３を捻じることにより内層部材２５の鍔部２５ｃの外周面のネジ部２５ｄに外層部材の鍔部２３ｃの内周面のネジ部を螺合せしめると、図７に示したように、前記中間層部材２４を外層部材２３と内層部材２５との間に圧着した状態に固定して三重構造からなる蓋体２１に組み立てられて、スポイトの注出機能を備えた滑り止め付きのネジ蓋体２１が構成される。
【００２７】
上記のようにして構成された本願発明のネジ蓋体２１が、各種の薬剤やインク等の内容物が充填された中空容器２２の口頸部２２ｂに螺合されると、図４に示したように密封された容器Ｂとなるが、このように密封された容器Ｂの蓋２１を開封して内溶液を注出するには、片手で容器本体２２を持ってから、もう一方の手の指先で蓋体２１を掴んで捻じると、エラストマー等の軟質樹脂からなる滑り止め部分２４ｅが指先に密着して、蓋体２１は滑ることもなく極めて容易に回転させることができるので、簡単に開封することができる。
【００２８】
このようにして開封された容器Ｂに於いては、蓋体２１の頂壁部に突出する膨出部２４ｆを指先で一度押圧してから離してやると、ポンプ作用により内容液は吸い上げ管２６の先端開口からパイプ２６ｂを経て小孔２６ｆから蓋体２１の空間部内に吸い上げられる。
そこで、蓋体２１の筒状胴部を掴んで容器の開口から引き抜いてから、再び膨出部２４ｆを押圧してやると、内溶液は蓋体２１の空間部から排出されるので、必要とする内溶液を容器Ｂから注出することができる。
【００２９】
【発明の効果】
上記したように、本願発明は、中空容器の口頸部のネジ部に螺合する硬質材からなる筒状の内層蓋部材と、該内層蓋部材に被せた密着性が良い軟質材からなる滑り止め部を有する中間層部材と、該中間層部材に被せて前記滑り止め部が変形しないように突出せしめて保持する硬質材からなる外層蓋部材との三層構造にしてネジ蓋体を構成したので、このような蓋体で密封された中空容器は、開封するのに特別な道具を使うことなしに、握力の弱い子供や老人、手が不自由な人であっても、また、手が濡れていたり、手袋をはめるいたりしても、手先との密着性が良いので、弱い力で容易に蓋を捻じって開閉することができる
【図面の簡単な説明】
【図１】本願発明の第一実施例の蓋体を用いた中空容器を示す上面図（ａ）と側面の部分断面図（ｂ）である。
【図２】本願発明の第一実施例に於ける開蓋時の斜視図である。
【図３】本願発明の第一実施例の蓋体を示す分解図である。
【図４】本願発明の第二実施例の蓋体を用いた中空容器を示す側面の部分断面図（ｂ）である。
【図５】本願発明の第二実施例の蓋体を示す側面部分断面図（ｂ）である。
【図６】本願発明の第二実施例の蓋体を示す分解図である。
【図７】本願発明の第二実施例の蓋体を示す斜視図である。
【図８】凹凸状の滑り止めを有する捻じ切り式の蓋体を示す部分断面図である。
【図９】弾性摩擦体を設けた蓋体を示す部分断面図である。
【図１０】従来の滑り止めを有する合成樹脂性蓋体を用いた容器を示す。
【符号の説明】
１．ネジ蓋体
２．中空容器
２ａ．
２ｂ．
２ｃ．
２ｄ．
３．外側層
３ｂ．筒状部
３ｃ．鍔部
３ｅ．スリット
４．中間層
４ｂ．筒状部
４ｃ．鍔状片
４ｅ．滑り止め片
５．内側層
５ｂ．筒状部
５ｃ．鍔部
５ｄ．ネジ部
２１．蓋体
２２．容器本体
２２ａ．口頸部
２２ｃ．
２３．外側層
２４．中間層
２５．内側層
２５ａ．頂壁部
２５ｂ．筒状部
２６．吸い上げ管[0001]
BACKGROUND OF THE INVENTION
The invention of the present application relates to a lid that is detachably screwed into the mouth and neck of a hollow container, and in particular, the lid that seals the mouth and neck of the hollow container by screwing action is twisted with a weak force. However, the present invention relates to a screw lid that can be easily opened.
[0002]
[Prior art]
As a means for sealing the opening of a hollow container that has been used in the past, in a glass bottle containing alcoholic beverages, soy sauce, etc., various soft drinks, juices, etc., sealed with a cork stopper or crown Since it was common, in order to open these sealing lids, each was opened using an opening tool.
However, as foods become richer, not only liquors but also beverages such as juices have been consumed, and screw caps have been used to seal containers that contain these. .
[0003]
The reason for this is that a sealed container using a screw cap can be opened or closed by grasping the lid with a fingertip and rotating it in either the left or right direction without using a special opening tool. It is convenient because it can be easily sealed, especially when it is not possible to use up a large amount of contents contained in a large container, so that the mouth of the container can be easily sealed again. is there.
[0004]
However, these conventionally used screw lids are formed by rolling a thin metal plate by roll machining or other means, and most of them are molded with a smooth metal surface. Therefore, when trying to twist the lid with the fingertip at the time of opening, there are cases where the finger is inevitably slippery and difficult to open.
And when it is difficult to open the lid with bare hands like this, cover the outer peripheral surface of the lid with a material with little slip such as rubber or cloth, and twist the lid from above. In some cases, it was necessary to take some troublesome measures such as opening the package.
[0005]
Therefore, even in a hollow container in which the screw lid is tightly sealed and difficult to open as described above, it can be opened easily by twisting the screw lid with bare hands without using rubber or other auxiliary means. In order to achieve this, various means have been devised to increase the frictional force between the fingertip and the lid so that the handtip does not slip.
[0006]
For example, in the case of a metal screw lid, when processing a metal plate by means of roll processing or the like as in the prior art, as shown in FIG. In a suitable place such as the lower end portion, vertical shallow groove-like uneven portions 52a, 52b are formed to prevent slipping, and a cutting line 52c such as a perforation that can be easily broken under the lower uneven portion. Have been proposed in Japanese Utility Model Laid-Open No. 49-128663 and Japanese Patent Laid-Open No. 8-230911.
Alternatively, as shown in FIG. 9, by providing a soft layer 63 in which rubber or the like is laminated on the outer peripheral surface of the body 62 of the screw lid 61, the screw lid is not wrapped with a material having a large frictional force such as rubber. Also, those that allow the screw lid 61 to be easily rotated are described in Japanese Utility Model Publication Nos. 48-111543 and 51-2101.
[0007]
However, a container that is sealed with a screw lid that is made difficult to slip by forming a number of jagged irregularities, rubber layers, etc. on the outer surface of the screw lid in this way is somewhat convenient. Those provided with a surface are less likely to be in close contact with the fingertip, and those provided with a rubber layer on the surface of the lid are in close contact with the fingertip, but the finger is weakly caught and difficult to apply force.
Therefore, when trying to open the container for the first time or when the screw lid is tightened, if you try to open the screw lid, a large twisting force may be required to open the lid. In such a case, children and elderly people with weak grip, especially sick people and people with disabilities, have difficulty in opening and closing the lid, and there is room for improvement.
[0008]
Furthermore, along with recent changes in the social situation and changes in the living environment, there is also a change in the eating habits, and a large amount of soft drinks and sports drinks are consumed along with liquor and other luxury products. At the same time, as the consumption of foods and drinks related to health care and beauty increased, synthetic resin hollow containers have come to be used instead of glass.
This includes the emergence of new synthetic resin materials that can mold hollow containers and the progress of molding technology that molds containers using them, and they are heavy in terms of physical distribution and easily damaged. Hollow containers made of polyethylene terephthalate (PET) resin, which is lighter, less fragile, easier to mold and safer than glass containers, are used more often, most of which use screw lids Sealed container.
[0009]
However, recently, in order to match the time when various soft drinks, juices and other foods and drinks have been consumed in large quantities, a container containing these foods and drinks has been seen at a glance. After carefully opening the container so that it cannot be understood, it is left in a vending machine or the like that is intentionally mixed with harmful substances in the human body. Rarely, mischievous incidents have occurred where someone else can drink the contents.
[0010]
Therefore, in order to prevent such socially terrifying mischiefs from occurring, once a container has been opened, it can be immediately detected that it has been opened. As one of the means, a method of sealing with a twist type lid that also has a sealing means has been adopted.
As a typical example, as shown in FIG. 10, the lid 71 includes a top wall portion 72 a that closes the opening of the container body, a body portion 72 b that is screwed into a spiral screw of the mouth and neck portion, and a mouth and neck portion. The barrel portion 72b and the fixture portion 72 are connected to each other by a fragile portion 72d such as a perforation so as to be easily cut, and the surface of the barrel portion 72b is arranged in the vertical direction. The non-slip portion 72c formed in a shallow streak shape is provided so as to be integrally formed by injection molding.
[0011]
In order to open the sealed container by screwing the twisted lid formed in this way to the mouth and neck of the container, the lid portion must be twisted to cut the fragile portion 72d. Since it is impossible to re-join the fragile part such as the perforated line that has been broken, it is easy to tell whether or not the container using the above twisted lid is opened. .
However, even a hollow container sealed using a screw-type screw lid 71 provided with such a streak-like anti-slip 72c, a container containing chemicals, foods, or the like is more than the conventional one. There is a tendency to be tightly sealed, and when opening the lid of such a sealed container for the first time, it requires a little twisting force, so even ordinary people get wet with water or sweat If your hands are covered with detergent, cosmetics or other oily materials, or if you wear gloves, the non-skid will not provide sufficient adhesion, and the hand will slip and open the lid. There were cases where it was difficult.
[0012]
[Problems to be solved by the invention]
The invention of the present application can be applied to seal the openings of various hollow containers regardless of the types of glass containers, synthetic resin containers, etc., by solving the problems and difficulties of the conventional lid as described above. In order to form a simple screw lid and to open a container sealed by the lid, it is not necessary to use a special tool, and even a child or an elderly person with weak grip, or a handicapped person An object of the present invention is to provide a lid having a structure that has good adhesion to the hand and can be easily opened and closed by twisting the lid with a weak force.
[0013]
[Means for Solving the Problems]
The invention of the present application is a screw lid that is screwed into a screw thread formed on the neck of a hollow container or other hollow container, and seals the opening of the hollow container. In order to form a screw lid provided with a non-slip portion made of a soft material such as elastomer resin on the outer surface of the screw lid so that the screw lid can be easily twisted and opened, the screw lid is attached to the container. A cylindrical inner layer lid member made of a hard material formed with a screw portion to be screwed into a screw of the mouth and neck portion, and a non-slip portion made of a soft material with good adhesion so as to cover the outer surface of the inner layer lid member The lid body is configured by a three-layer structure including an intermediate layer member having a cover and an outer layer cover member made of a hard material that covers the intermediate layer member and protrudes so that the anti-slip portion is not deformed. Forming a screw cap with anti-slip.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
A cylindrical lid body layer portion provided with an internal thread to be screwed into the external thread portion of the mouth and neck of the hollow container formed by blow molding is molded by injection molding of a hard synthetic resin and fitted into the inner layer portion. The surface of the cover intermediate layer portion that can be joined is formed by injection molding a soft synthetic resin such as an elastomer resin, which is provided with a vertical streak as a non-slip portion on the intermediate layer cover portion. The lid outer layer portion that is fitted and provided with a slit from which the anti-slip portion protrudes is molded by injection molding of a hard synthetic resin, and each member for forming the lid body of the present invention is molded. .
[0015]
Next, the lid intermediate layer portion made of an elastomer resin is fitted on the cylindrical lid body layer portion formed as described above to form a two-layer structure lid, and further A screw portion formed on the outer peripheral surface of the lower end portion of the lid body layer portion and the lid outer layer portion is fitted on the lid intermediate layer portion having the structure so that the anti-slip portion protrudes from the slit. A screw part formed on the outer peripheral inner surface of the lower end of the lid body is screwed together to form a three-layered lid body, and the lid body contains contents such as liquid. The sealed container is screwed into the threaded portion of the mouth and neck of the hollow container to form a sealed container having a screw lid with a non-slip.
In this way, the hollow container sealed with the screw lid of the present invention is provided with a slip stopper made of elastomer resin on the outer peripheral surface of the lid body, so that the screw lid can be easily twisted with the hand. Can be opened easily.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the invention of the present application will be described in detail with reference to the drawings based on an optimum embodiment.
Example 1.
As shown in FIG. 1, the present invention relates to a screw lid 1 provided with a non-slip portion 4 e on the outer peripheral surface of a lid that seals the opening of a hollow container 2, and the lid 1 of the present invention includes: As shown in the figure, it has an inner layer portion 5 made of a hard material that has a cylindrical shape so as to be screwed into close contact with the mouth-neck portion 2a of the container 2, and a non-slip portion 4e that fits into the inner layer. The intermediate layer portion 4 made of a soft material and the outer layer 3 made of a hard material fitted to the intermediate layer portion 4 so as to hold the anti-slip portion 4e are configured in a three-layer structure.
[0017]
The members of each layer constituting the inner layer, the intermediate layer, and the outer layer of the lid described above are molded into a predetermined shape by injection molding a material selected from synthetic resin materials suitable for the respective operation characteristics. .
As shown in FIG. 3, the inner layer portion 5 has a cylindrical portion 5b that fits into the mouth-neck portion 2b of the hollow container 2, a top wall portion 5a that closes the opening 2a, and a shoulder portion 2c of the container. A screw portion that is screwed into the thread 2d of the mouth-and-neck portion 2b is formed on the inner peripheral surface of the cylindrical portion 5b, and an intermediate layer is formed on the outer peripheral surface of the flange portion 5c. A screw thread 5d is formed to sandwich the portion 4 and connect to the outer layer portion 3.
[0018]
The intermediate layer portion 4 includes a fitting cylinder portion 4b fitted to the cylindrical portion 5b of the inner layer portion, a non-slip piece 4e protruding in a vertically long rib shape on the surface of the fitting cylinder, and the inner and outer layers. The outer layer portion 3 is a vertically long slit that fits into the cylindrical portion 4b of the intermediate layer and holds the anti-slip piece 4e. It is formed from a cylindrical portion 3b formed with 3e and a flange portion 3c provided with a threaded portion that sandwiches the flange portion 4c of the intermediate layer and is screwed into the flange portion 5c of the inner layer.
[0019]
The constituent members 3, 4 and 5 of the lid body formed as described above can be assembled as the lid body 1 as follows.
After forming the double layer structure in which the intermediate layer member 4 made of a soft synthetic resin material that is easy to be in close contact with the hand is fitted to the lid body layer member 5 made of a hard synthetic resin material, the two layers are formed. By fitting the outer layer member 3 made of a hard synthetic resin material on a heavy structure member so that the slip stopper 4e of the intermediate layer protrudes from the slit 3e, the outer layer member 3 is rotated. As shown in FIG. 2, the intermediate layer member 4 is connected to the inner / outer layer member 5 by screwing the screw portion 5d on the outer peripheral surface of the inner layer member flange 5c to the inner peripheral surface of the outer layer member flange 3c. , 3 is assembled into a screw lid body 1 with a non-slip.
[0020]
As shown in FIG. 1, when the screw lid body 1 with a non-slip of the present invention configured as described above is screwed into the mouth and neck portion 2a of the hollow container 2 filled with the contents, A sealed container A is formed in which the opening of the container is sealed.
In order to open the container A thus sealed, the container body 2 is held with one hand, and then the lid body 1 is grasped and twisted with the fingertip of the other hand, and a soft resin such as elastomer is applied to the fingertip. Since the non-slip piece 4e is in close contact, and the non-slip piece is held by the slit 3e of the outer layer member made of hard resin and does not deform, the lid body 1 can be easily rotated without slipping the fingertip. The sealed container can be opened easily.
[0021]
Example 2
The present invention can be applied not only to a simple screw-type sealing lid but also to the formation of a screw lid having a dropper dispensing function.
The screw lid provided with the dropper dispensing function is basically a lid configured in the same manner as in the first embodiment, and as shown in FIG. It has a three-layer structure comprising an inner layer portion 25 made of a material, an intermediate layer portion 24 made of a soft material that forms an anti-slip portion and a bulging portion, and an outer layer portion 23 made of a hard material that holds the anti-slip portion. A suction pipe 26 is connected to the main body of the lid body 21 configured to form a lid body having a dropper dispensing function.
[0022]
As shown in FIG. 6, the members constituting the lid 21 are in close contact with the cylindrical portion 25b and the opening 22a that screw the inner layer portion 25 of the lid into the mouth-neck portion 22b of the hollow container 22. And a fitting support portion for fixing the suction pipe 26 to the inner peripheral surface of the cylindrical portion 25b and the container mouth / neck portion 22b. A thread portion to be screwed to the outer thread portion 22d, and a thread portion 25d to be screwed to the outer layer portion 23 with an intermediate layer interposed therebetween, is formed on the outer peripheral surface of the flange portion 25c. The top wall 25a has a small hole 25f in the center.
[0023]
And the top wall part which formed the bulging-shaped part 24f which can carry out the press deformation | transformation for carrying out the pump action with the fitting cylinder part 24b which fits the said intermediate | middle layer part 24 in the cylindrical part 25b of the said inner side layer 25. 24a and a flange-shaped piece 24c sandwiched between inner and outer layer flange portions 23c and 25c, and a vertically long non-slip piece 24e protruding in a rib shape is formed on the side wall surface of the fitting cylinder 24b. Yes.
[0024]
Further, the fixed cylindrical portion 23b for fitting and fixing the outer layer portion 23 to the cylindrical portion 24b of the intermediate layer 24 and the flange-shaped piece 24c of the intermediate layer 24 are crimped to the flange portion 25c of the inner layer. A vertical slit 23e is formed on the side wall portion of the fixed cylindrical portion 23b to project the intermediate layer anti-slip piece 24e, and the top wall portion 23a of the fixed cylindrical portion is formed on the side wall portion of the fixed cylindrical portion 23b. An opening 23f from which a portion 24f of the top wall of the intermediate layer 24 bulges is formed, and a threaded portion that is screwed into a thread 25d of the collar 25c of the inner layer on the inner peripheral surface of the collar 23c. Is formed.
[0025]
The constituent members of the lid body molded as described above are assembled into the lid body as follows.
The upper end portion of the suction pipe 26 is fitted and fixed to the cylindrical portion 25b of the inner layer member 25 formed from the hard synthetic resin material, and from the soft synthetic resin material formed as described above from above. The intermediate layer member 24 is fitted and brought into close contact to form a double structure.
[0026]
Next, when the outer layer member 23 made of the hard synthetic resin material is further fitted onto the double structure member, the non-slip piece 24e on the side wall portion of the intermediate layer member 24 is inserted into the slit of the cylindrical portion 23b. A screw on the outer peripheral surface of the flange portion 25c of the inner layer member 25 is formed by projecting from the portion 23e and fitting the bulging portion 24f of the top wall portion by projecting from the top wall opening 23f and twisting the outer layer member 23. When the thread portion of the inner peripheral surface of the flange portion 23c of the outer layer member is screwed into the portion 25d, the intermediate layer member 24 is pressure-bonded between the outer layer member 23 and the inner layer member 25 as shown in FIG. The screw lid body 21 with a non-slip having a dropper dispensing function is assembled to the lid body 21 having a triple structure.
[0027]
When the screw lid body 21 of the present invention configured as described above is screwed into the mouth-and-neck portion 22b of the hollow container 22 filled with contents such as various drugs and ink, it is shown in FIG. In order to open the lid 21 of the container B thus sealed and to dispense the internal solution, the container B is held with one hand and then the other hand When the lid 21 is grasped and twisted with the fingertip, the non-slip portion 24e made of a soft resin such as elastomer is brought into close contact with the fingertip, and the lid 21 can be rotated very easily without slipping. Can be opened.
[0028]
In the container B opened in this manner, when the bulging portion 24f protruding from the top wall portion of the lid 21 is pressed once with the fingertip and then released, the liquid content of the suction pipe 26 is pumped. It is sucked up into the space of the lid 21 from the small hole 26f through the pipe 26b from the tip opening.
Therefore, if the cylindrical body portion of the lid 21 is grasped and pulled out from the opening of the container and then the bulging portion 24f is pressed again, the inner solution is discharged from the space portion of the lid 21. The solution can be poured out of container B.
[0029]
【The invention's effect】
As described above, the present invention includes a cylindrical inner layer lid member made of a hard material screwed into a screw portion of a mouth and neck portion of a hollow container, and a slip made of a soft material having good adhesion on the inner layer lid member. The screw lid body is configured with a three-layer structure of an intermediate layer member having a stopper and an outer layer lid member made of a hard material that projects and holds the intermediate layer member so that the slip stopper does not deform. Therefore, a hollow container sealed with such a lid does not require special tools to open it, and even if it is a weak child, an elderly person, or a handicapped person, Even when wet or wearing gloves, it has good adhesion to the hand, so it can be easily opened and closed by twisting the lid with a weak force [Brief description of the drawings]
FIG. 1A is a top view showing a hollow container using a lid of a first embodiment of the present invention, and FIG.
FIG. 2 is a perspective view when the lid is opened in the first embodiment of the present invention.
FIG. 3 is an exploded view showing the lid of the first embodiment of the present invention.
FIG. 4 is a partial cross-sectional view (b) of a side surface showing a hollow container using a lid of a second embodiment of the present invention.
FIG. 5 is a side sectional view (b) showing a lid of a second embodiment of the present invention.
FIG. 6 is an exploded view showing a lid according to a second embodiment of the present invention.
FIG. 7 is a perspective view showing a lid according to a second embodiment of the present invention.
FIG. 8 is a partial cross-sectional view showing a twisted-type lid having an uneven slip stopper.
FIG. 9 is a partial cross-sectional view showing a lid provided with an elastic friction body.
FIG. 10 shows a conventional container using a synthetic resin lid having a non-slip.
[Explanation of symbols]
1. Screw lid 2. Hollow container 2a.
2b.
2c.
2d.
3. Outer layer 3b. Cylindrical part 3c. Buttocks 3e. Slit 4. Intermediate layer 4b. Cylindrical part 4c. Sponge piece 4e. 4. Non-slip piece Inner layer 5b. Cylindrical part 5c. 5d. Screw part 21. Lid 22. Container body 22a. Mouth and neck 22c.
23. Outer layer 24. Intermediate layer 25. Inner layer 25a. Top wall portion 25b. Cylindrical section 26. Suction tube

Claims

It is a screw lid that is easy to open and close, and has a cylindrical shape that is screwed into the mouth and neck of the hollow container to seal the container opening, and is formed into a cylindrical shape that is screwed into the mouth and neck of the container body A lid inner layer member, a lid intermediate layer member projecting a rib-shaped non-slip portion and a collar on the fitting cylinder portion fitted to the lid inner layer member, and the lid intermediate layer member An outer layer member provided with a slit portion is fitted to the side wall portion of the cylindrical portion to be fitted to form a three-layered lid, and the non-slip portion is projected from the slit portion and held openable. A screw lid provided with a non-slip portion characterized by being formed.

2. The lid inner layer member includes a cylindrical portion that is screwed into a mouth and neck portion of a container body, a top wall portion that closes the opening portion, and a flange portion that is in close contact with the shoulder portion of the container. A screw lid provided with a non-slip portion as described in 1.

The lid inner layer member includes a cylindrical portion that is screwed into the mouth and neck portion of the container body, a top wall portion that closes the opening, and a flange portion that is in close contact with the shoulder portion of the container, and an inner periphery of the cylindrical portion. The surface is formed with a threaded portion that is screwed to the thread of the mouth and neck, and the outer peripheral surface of the collar portion is formed with a thread that sandwiches the intermediate layer member and is coupled to the outer layer member. A screw lid provided with a non-slip portion according to claim 1.

The lid intermediate layer member includes a fitting cylindrical portion that fits into the cylindrical portion of the inner layer member, a hook-shaped piece that is sandwiched between the flange portions of the inner and outer layers, and a top wall portion, and the fitting The screw lid body provided with the anti-slip part according to claim 1, wherein an anti-slip part protruding in a vertically long rib shape is formed on the surface of the cylindrical part.

The outer layer member includes a cylindrical portion formed with a vertically long slit that fits into the cylindrical portion of the intermediate layer member and protrudes and holds the anti-slip portion, and a screw portion that is screwed into the flange portion of the inner layer member. The screw lid body provided with the anti-slip portion according to claim 1, comprising a flange portion and a top wall portion.

It is a screw lid that is easy to open and close, and has a cylindrical shape that is screwed into the mouth and neck of the hollow container to seal the container opening, and is formed into a cylindrical shape that is screwed into the mouth and neck of the container body A lid inner layer member, and a rib-shaped non-slip portion projectingly provided on the outer surface of the fitting tube portion to be fitted to the lid inner layer member, and provided with a flange at the opening end and a top wall surface A lid intermediate layer member provided with a compressible bulging portion and a lid outer layer member provided with a slit portion on the side wall portion of the cylindrical portion to be fitted to the intermediate layer member. Formed on the lid of the layer structure, the bulging portion of the lid intermediate layer member protrudes from the opening of the lid outer layer member, and the non-slip portion protrudes from the slit portion so as to be opened and closed. Further, a suction pipe is fitted to the cylindrical portion of the inner layer member so that the contents in the container can be sucked up. Dropper screw lid provided with a non-slip portion, characterized in.

The lid inner layer member is formed of a cylindrical portion that is screwed into a mouth-and-neck portion of a hollow container, a top wall portion that is in close contact with the opening portion, and a flange portion that is in close contact with a shoulder portion of the container. A fitting support portion for fixing the suction pipe and a screw portion that is screwed to the thread of the neck portion of the container mouth are formed on the inner peripheral surface of the shaped portion, and an outer portion is screwed to the outer peripheral surface of the collar portion. The screw cap body with a dropper provided with an anti-slip portion according to claim 6, wherein a screw thread is formed, and a small hole is formed in a central portion of the top wall portion.

The intermediate layer member has a hook-like shape that is sandwiched between a fitting cylindrical portion that fits into the cylindrical portion of the inner layer member, a top wall portion that forms a bulging portion that can be pressed and deformed, and a flange portion of the inner and outer layers. 7. A dropper provided with an anti-slip part according to claim 6, wherein a vertically long anti-slip part protruding in a rib shape is formed on the side wall surface of the fitting cylinder part. With screw lid.

The outer layer member is formed of a fixed cylindrical portion that fits and is fixed to the cylindrical portion of the intermediate layer member, and a flange portion that crimps the flanged piece of the intermediate layer member to the flange portion of the inner layer member. The side wall of the fixed cylindrical part is formed with a vertically long slit from which the slip preventing part of the intermediate layer member protrudes, and the top wall of the fixed cylindrical part is a bulged top wall of the intermediate layer member The opening part from which a part protrudes is formed, and the thread part which screws together with the thread of the collar part of an inner layer member is formed in the internal peripheral surface of a collar part, The Claim 6 characterized by the above-mentioned. A screw cap with a dropper provided with an anti-slip part.

The inner layer member and the outer layer member of the lid are formed of a hard synthetic resin material, and the intermediate layer member is formed of a soft synthetic resin material. Item 7. A screw cap with a dropper provided with the anti-slip portion according to item 6.