JP3735928B2 - Opening and closing mechanism with presser spring plate at container opening - Google Patents

Opening and closing mechanism with presser spring plate at container opening Download PDF

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Publication number
JP3735928B2
JP3735928B2 JP05121096A JP5121096A JP3735928B2 JP 3735928 B2 JP3735928 B2 JP 3735928B2 JP 05121096 A JP05121096 A JP 05121096A JP 5121096 A JP5121096 A JP 5121096A JP 3735928 B2 JP3735928 B2 JP 3735928B2
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presser spring
spring plate
opening
closing mechanism
container
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JPH09240735A (en
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忠 萩原
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忠 萩原
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Priority to JP05121096A priority Critical patent/JP3735928B2/en
Priority to PCT/JP1997/000705 priority patent/WO1997032796A1/en
Priority to AU22326/97A priority patent/AU2232697A/en
Publication of JPH09240735A publication Critical patent/JPH09240735A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D77/00Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/22Details
    • B65D77/24Inserts or accessories added or incorporated during filling of containers
    • B65D77/28Cards, coupons, or drinking straws
    • B65D77/283Cards, coupons, or drinking straws located initially inside the container, whereby the straw is revealed only upon opening the container, e.g. pop-up straws

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
  • Packages (AREA)

Description

【0001】
【発明の属する技術分野】
この発明は瓶やPETボトル、缶、紙パック等の種々の容器に適用される容器開口部の押えバネ板付き開閉機構に関するものである。
【0002】
【従来の技術】
従来、瓶やPETボトル、缶、紙パック等の容器の開口部は、容器と異なる材質のキャップを取り付けたり、プルトップ式の開口部を形成したり、ストローを差し込めるようにした蒸着フィルム等からなる封緘シールを貼付することによって密封されている。
【0003】
【発明が解決しようとする課題】
しかしながら、瓶やPETボトルのように容器と異なる材質のキャップを取り付けたものにおいては、キャップの容器開口部への取り付け、取り外しに手間がかかり、散逸しやすいことはもちろん、使用後の廃棄処理に際して容器と異なる材質のキャップの処分に困るという欠点があった。
【0004】
またスチール缶やアルミ缶のように、プルトップ式の開口部を形成したものにおいては、散逸しやすい上に、一旦開口すると閉じることができないため、こぼれやすいので運びにくく、保管しておいて何回にも分けて飲食することが難しいという欠点があった。
【0005】
さらに、紙パック等の容器の開口部に蒸着フィルム等からなる封緘シールを貼付することによって、封緘シールにストローを差し込めるようにしたものにおいては、うかつに紙パックを掴むと内容物がストローを差し込んだ開口部から噴き出してきてしまって外にこぼれたり、使用後の廃棄処理に際して容器と異なる材質の封緘シールの処分に困るという欠点があった。
【0006】
この発明の容器開口部の押えバネ板付き開閉機構は従来例の上記欠点を解消しようとするものであり、使用後の廃棄処理に際して容器と一緒にそのまま焼却等の廃棄処分をすることができ、使用後は自動的に開口部が閉じるために容器を掴んだり運んだりしてもこぼれることがないので、保管しておいて何回にも分けて飲食することが可能な容器開口部の押えバネ板付き開閉機構を提供しようとするものである。
【0007】
【課題を解決するための手段】
すなわちこの発明の容器開口部の押えバネ板付き開閉機構は、軟質シートからなる開閉可能な通路体の両面を、押えバネ板で挟み付けるとともに、この押えバネ板を所定の曲率で屈曲させて密着させることにより常態では通路体が閉じており、押えバネ板間の通路体内に棒状体を挿入した時には内側の押えバネ板が変形して通路体が開き、棒状体を引き抜いたときには内側の押えバネ板が復元力により外側の押えバネ板に密着して、通路体が閉じられるようにしたことを特徴とするものである。
【0008】
上記容器開口部の押えバネ板付き開閉機構において、押えバネ板が少なくとも2枚で構成され、その外側が厚く内側が薄い厚さの異なるものであることも特徴としている。
【0009】
上記容器開口部の押えバネ板付き開閉機構において、外側の厚い押えバネ板が所定の曲率で屈曲した状態に自立的に形成されていることも特徴としている。
【0010】
上記容器開口部の押えバネ板付き開閉機構において、内側の薄い押えバネ板が外側の厚い押えバネ板に沿うものであることも特徴としている。
【0011】
上記容器開口部の押えバネ板付き開閉機構において、押えバネ板が、プラスチック薄板、金属板、あるいはこれらを構成材料とする複合板から選ばれてなることも特徴としている。
【0012】
上記容器開口部の押えバネ板付き開閉機構において、軟質シートからなる開閉可能な通路体が、2枚の軟質シートを通路の境界部分で貼付したものからなることも特徴としている。
【0013】
上記容器開口部の押えバネ板付き開閉機構において、軟質シートが、ゴムシート、プラスチックシート、耐水紙、防水布、アルミ箔あるいはこれらの複合シートから選ばれていることも特徴としている。
【0014】
この発明の容器開口部の押えバネ板付き開閉機構によれば、使用後の廃棄処理に際して容器と一緒にそのまま焼却等の廃棄処分をすることができ、使用後は自動的に開口部が閉じるために容器を掴んだり運んだりしてもこぼれることがないので、保管しておいて何回にも分けて飲食することができる容器開口部の押えバネ板付き開閉機構を提供することが可能となった。
【0015】
【発明の実施の形態】
以下、図面に基づき、この発明の容器開口部の押えバネ板付き開閉機構の実施の形態について説明する。
【0016】
図1は、この発明の容器開口部の押えバネ板付き開閉機構(以下開閉機構と称する)を容器に適用した例を示す概略図である。図中(イ)はポリ袋類の例を示し、(イ−1)はシート状のポリ袋101にこの発明の開閉機構111を適用した場合、(イ−2)は円形の底103を設けたポリ袋102にこの発明の開閉機構111を適用した場合を示すものである。
【0017】
(ロ)は紙パック類の例を示し、(ロ−1)は果汁飲料等の小さめの紙パック104にこの発明の開閉機構111を適用した場合、(ロ−2)は牛乳等の大きめの紙パック105にこの発明の開閉機構111を適用した場合を示すものである。
【0018】
(ハ)は瓶類やPETボトル類の例を示し、(ハ−1)は清涼飲料等のための小型の瓶106にこの発明の開閉機構111を適用した場合、(ハ−2)は大型のPETボトル107にこの発明の開閉機構111を適用した場合を示すものである。
【0019】
(ニ)は紙コップ類の例を示し、蓋109を備えた紙コップ108の蓋109の部分にこの発明の開閉機構111を適用した場合を示すものである。
【0020】
以下、上記開閉機構111の詳細について説明する。
【0021】
図2は開閉機構111を構成している、軟質シートからなる開閉可能な通路体を示すものである。この通路体1は2枚の軟質シートを貼り合わせて作成することができ、通路部分2は筒状に開口することが可能である。また通路部分2の両側には、下記押えバネ板間に挟み込んで通路体1を保持するずれ止め片3が形成されている。4はずれ止め片3の位置から突出している通路体1のガイド部である。
【0022】
上記通路体1としては、使用する軟質シートを、ゴムシート、プラスチックシート、耐水紙、防水布、アルミ箔あるいはこれらの複合シートから選ぶことが望ましい。
【0023】
図2において(イ)は通路体1の通路部分2が閉じている場合を示し、(ロ)は通路体1の通路部分2が開いていて、容器の内容物が通過している状態を示している。
【0024】
図3は通路体1の通路部分2を、2枚の軟質シートを貼り合わせて加熱溶着する場合を示すものである。図において(イ)はガイド部4の反対側に向かってつぼまっているテーパ状の通路部分2を示す。(ロ)はガイド部4の反対側に向かってつぼまり、さらにその先は筒状になっている通路部分2を示す。(ハ)はガイド部4の反対側に向かって所定の広さの部分があってからつぼまり、さらにその先は筒状になっている通路部分2を示す。(ニ)はガイド部4と同じ径の筒状に形成された通路部分2を示す。
【0025】
上記通路体1の通路部分2の幅は、挿入する棒状体の径に応じて挿入が無理なく行なえ、しかも挿入した棒状体の周囲に通気可能な余裕を持つ程度のサイズが望ましい。こうすることによって容器に内容物を充填する際に、棒状体部分から内容物を充填しながら、その周囲から容器内の空気を放出させて充填作業を無理なく行なわせることができる。
【0026】
上記通路体1に通路部分2を形成する手段としては、2枚の軟質シートを貼り合わせてずれ止め片3部分で加熱溶着する手段が望ましいが、他の形成手段でも良いことはもちろんである。ずれ止め片3の溶着に際しては、通路部分2との境界のみ溶着すれば十分である。
【0027】
図4は上記通路体1を挟み込んで開閉、特に自動的に密閉させるための押えバネ板の例を示すものである。一対の押えバネ板5,6は(イ)のように通路体1を挟み、その径方向に湾曲したものであってもよい。(イ)は全体形状が矩形の場合、(ロ)は全体形状が台形の場合、(ハ)はそのB−B断面図をそれぞれ示している。
【0028】
なお一対の押えバネ板5,6はそれぞれ肉厚を異ならせておくことが望ましく、湾曲した外側の押えバネ板5は自立可能な程度の厚みがあり、内側の押えバネ板6はかなり柔軟であることができる。通路体1との関係でいえば、通路体1は柔軟性を要するため薄手のものを使用し、押えバネ板5,6はその機能上、所定の肉厚であることを必要とする。もちろん、内側の押えバネ板6は通路体1よりも厚いものであることが望ましい。
【0029】
上記一対の押えバネ板5,6の材質としては、プラスチック薄板、金属板、あるいはこれらを構成材料とする複合板から選ぶことができる。プラスチック薄板の例としては、ポリエチレン、ポリプロピレン、ポリエステル、ポリカーボネート等が挙げられる。この場合、通路体1を同じ材質とすることが望ましい。
【0030】
上記押えバネ板5,6の厚さとしては、上記ポリエチレン等のプラスチック薄板を使用した場合、外側の押えバネ板5が約0.1〜0.5mmの自立可能な程度で、内側の押えバネ板6はそれよりも相対的に薄い、約0.1〜0.2mm程度のものを使用することが望ましい。また押えバネ板5,6の寸法は矩形の場合を例に取れば、横軸:縦軸比率で約2〜1.5:1が望ましい。例えば、横軸:縦軸比の実寸で40mm:25mm、35mm:20mm、30mm:15mm等の寸法とすることができる。
【0031】
また一対の押えバネ板5,6は(ニ)のように通路体1を挟み、その長さ方向に湾曲したものであってもよい。(ニ)は全体形状が矩形の場合、(ホ)は全体形状が台形の場合、(ヘ)はそのC−C断面図をそれぞれ示している。
【0032】
上記押えバネ板5,6を湾曲させた場合の曲率半径は、15mm〜30mmが望ましい。小さい曲率半径のものでは押えバネ板5,6の通路体1を挟む力が強い上、棒状体7の挿抜に対する反応がよい。逆に、曲率半径を大きくしていって押えバネ板5,6の通路体1を挟む力や、棒状体7を挿抜する際の力加減を調整することができる。
【0033】
すなわちこの開閉機構は、図4に示すように通路体1を押えバネ板5,6で挟み込んだ構造となっており、常態においては、押えバネ板5,6によって通路部分2を閉鎖するようになっている。
【0034】
素材的には通路体1および押えバネ板5,6の何れも単一素材を使用することが望ましい。例えば、日常家庭等で使用されるポリエチレン製の袋が、素材としての汎用性、加工性、ゴミ化した後の処理性等において、この発明の上記課題の解決にきわめて好適であることを確認している。
【0035】
上記押えバネ板5,6を湾曲させる手段としてこの発明においては、湾曲した外側の押えバネ板5を自立可能な厚みとし、さらに成形時ないしその後の加工によって湾曲させている。そして内側の押えバネ板6を押えバネ板5に沿って湾曲させればよい。
【0036】
図5に、通路体1を押えバネ板5,6で挟み込んでこの発明の開閉機構111を構成した状態を示す。すなわち、(イ)のように通路体1の両側を押えバネ板5,6で挟み付け、(ロ)のように組み付けるのである。組み付けた状態では図(ロ)のように通路体1は扁平に保持されている。そしてガイド部4から通路体1にストローその他の棒状体7を差し込むと、通路体1とともに内側の押えバネ板6が押し広げられ、最後には図(ハ)のように通路体1が完全に筒状になって容器内が開放される。
【0037】
図6は内側の押えバネ板6を外側の押えバネ板5に沿わせるための手段を示すものである。その手段としては、(イ)および(ロ)のように通路体1を挟み付けた押えバネ板5,6の両側端部を溶着することが挙げられる。また、(ハ)および(ニ)のように外側の押えバネ板5の両側端部を折り返し、折り返して形成された挿入ガイド部8に内側の押えバネ板6を差し込んでもよい。さらに(ホ)および(ヘ)のように押えバネ板5,6の両側端部をコ字状の圧着手段9で挟み付けるようにしてもよい。
【0038】
図7は、外側の押えバネ板5の湾曲を、より確実なものとするための手段を示すものである。(イ)および(ロ)は、湾曲して円弧状に形成された押えバネ板5,6の両側端部に、両側端部を折り返した牽引シート10の折り返し部11をはめ込んで保持した状態を示している。また(ハ)および(ニ)は、外側の押えバネ板5の一端を延長し、さらにその先端を折り返して形成した折り返し部12を、押えバネ板5の他端にはめ込んで保持した状態を示すものである。このようにしておけば、外側の押えバネ板5の形状を保持する力が弱くても確実にその湾曲を保たせることができ、通路体1を強固に圧着することができる。
【0039】
そして、上記のように構成したこの発明の容器開口部の開閉機構の作用について説明する。
【0040】
図8は、通路体1にストローその他の棒状体7を挿入した状態を示している。この開閉機構111は、通路体1の通路部分2の内部に棒状体7を挿入することにより、押えバネ板5,6により密着していた通路部分2の密着を解いて、通路を確保せしめるものである。この実施例においてはこのような棒状体7としてストローを使用してより確実な通路を確保しようとしている。
【0041】
上記作用をより詳細に説明する図9において、ストローからなる棒状体7の先端を通路体1のガイド部4の上端から挿入する。実際には、この部分にキャップや取り付け口を付けることにより、棒状体7を挿入しやすい形状としておく。そして、図(イ)から(ハ)のように徐々に棒状体7を押し下げて行くと、通路体1の通路部分2は内側の押えバネ板6ごと押し広げられていく。
【0042】
そして棒状体7をさらに押し下げると、内側の押えバネ板6が棒状体7に沿って全長にわたって押し広げられ、図(ニ)のように容器の内容物が自由に流通することができるようになる。
【0043】
逆に、容器開口部を閉じようとする場合には単に棒状体7を引き抜けばよい。すなわち、押えバネ板6が徐々に元の位置に復帰して押えバネ板5に密着し、通路体1の通路部分2は図(ニ)から(イ)を逆にたどって、再び全長が自動的に密着することとなる。このとき、容器開口部に設けた開閉機構111に容器内から内容物を押し出そうとする圧力が加わると、押えバネ板5,6を介して通路体1に圧力が伝達され、通路体1の通路部分2はより一層密閉される。
【0044】
【発明の効果】
この発明の容器開口部の押えバネ板付き開閉機構によれば、使用後の廃棄処理に際して容器と一緒にそのまま焼却等の廃棄処分をすることができる。
【0045】
また、使用後は自動的に容器開口部が閉じるために容器を掴んだり運んだりしてもこぼれることがないので、保管しておいて何回にも分けて飲食することが可能となった。
【0046】
また、上記開閉機構を含めた容器全体を単一の素材で構成した場合には、製造工程が単純化し、なおかつゴミ化後の処理が単純化されるのでリサイクル性の高い容器を提供することができる。
【図面の簡単な説明】
【図1】この発明の容器開口部の押えバネ板付き開閉機構を容器に適用した例を示す概略図で、(イ)はポリ袋類の例を示し、(ロ)は紙パック類の例を示し、(ハ)は瓶類やPETボトル類の例を示し、(ニ)は紙コップ類の例を示すものである。
【図2】この発明の容器開口部の開閉機構を構成している、軟質シートからなる開閉可能な通路体を示し、(イ)は通路体の通路部分が閉じている場合、(ロ)は通路体の通路部分が開いていて、容器の内容物が通過している状態を示す、それぞれ斜視図およびA−A断面図である。
【図3】(イ)〜(ニ)は、通路体を2枚の軟質シートを貼り合わせて加熱溶着する場合を示す概略斜視図である。
【図4】(イ)、(ロ)および(ニ)、(ホ)は押えバネ板の例を示す斜視図、(ハ)、(ヘ)はそのB−B断面図およびC−C断面図である。
【図5】この発明の開閉機構の組付状態を示し、(イ)は組み付け前、(ロ)は組み付け状態、(ハ)は使用状態を示すそれぞれ斜視図である。
【図6】(イ)〜(ヘ)はこの発明の開閉機構において、内側の押えバネ板を外側の押えバネ板に沿わせるための手段を示す斜視図およびE−E断面図である。
【図7】(イ)〜(ニ)はこの発明の開閉機構において、内側の押えバネ板を外側の押えバネ板に沿わせるための別の手段を示す斜視図およびF−F断面図である。
【図8】通路体に棒状体を挿入した状態を示す図5(ハ)のD−D拡大断面図である。
【図9】(イ)〜(ニ)は通路体に棒状体を挿入した状態を段階的に示す断面図である。
【符号の説明】
1 通路体
2 通路部分
3 ずれ止め片
4 ガイド部
5,6 押えバネ板
7 棒状体
8 挿入ガイド部
9 圧着手段
10 牽引シート
11 折り返し部
12 折り返し部
101 ポリ袋
102 ポリ袋
103 底
104 紙パック
105 紙パック
111 開閉機構
106 瓶
107 PETボトル
108 紙コップ
109 蓋
111 開閉機構
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an opening / closing mechanism with a presser spring plate of a container opening applied to various containers such as bottles, PET bottles, cans, and paper packs.
[0002]
[Prior art]
Conventionally, the openings of containers such as bottles, PET bottles, cans, paper packs, etc. are made from vapor deposition films etc. that have caps made of materials different from those of containers, that form pull-top type openings, or that can be inserted with straws. It is sealed by sticking a sealing seal.
[0003]
[Problems to be solved by the invention]
However, in the case where a cap made of a material different from that of a container such as a bottle or PET bottle is attached, it takes time to attach and remove the cap to the container opening, and it is easy to dissipate. There was a drawback that it was difficult to dispose of a cap made of a material different from that of the container.
[0004]
Also, in steel cans and aluminum cans that have a pull-top opening, they are easy to dissipate and cannot be closed once they are opened, so they are easy to spill out and are difficult to carry and store many times. However, it was difficult to eat and drink separately.
[0005]
Further, in the case where a straw is inserted into the opening seal of a container such as a paper pack so that a straw can be inserted into the seal, the contents will be removed by grabbing the paper pack. There is a drawback that it spills out from the inserted opening and spills outside, and it is difficult to dispose of a sealing seal made of a material different from that of the container in the disposal process after use.
[0006]
The opening and closing mechanism with a presser spring plate of the container opening of the present invention is intended to eliminate the above-mentioned drawbacks of the conventional example, and can be disposed of as incinerated as it is together with the container at the time of disposal after use, Since the opening automatically closes after use, there is no spillage even if the container is gripped or carried, so the holding spring for the container opening that can be stored and eaten and divided many times An open / close mechanism with a plate is to be provided.
[0007]
[Means for Solving the Problems]
That is, the opening / closing mechanism with a presser spring plate of the container opening according to the present invention sandwiches both sides of the openable / closable passage body made of a soft sheet with the presser spring plate, and bends the presser spring plate with a predetermined curvature so as to adhere to each other. By doing so, the passage body is normally closed, and when the rod-shaped body is inserted into the passage body between the presser spring plates, the inner presser spring plate is deformed to open the passage body, and when the rod-shaped body is pulled out, the inner presser spring is The plate is brought into close contact with the outer presser spring plate by a restoring force so that the passage body is closed.
[0008]
The opening / closing mechanism with a presser spring plate of the container opening is characterized in that the presser spring plate is composed of at least two pieces, and the outer side is thick and the inner side is different.
[0009]
In the opening / closing mechanism with the presser spring plate of the container opening, the thick presser spring plate on the outer side is formed in a self-supporting manner in a bent state with a predetermined curvature.
[0010]
In the opening / closing mechanism with a presser spring plate at the container opening, the inner thin presser spring plate is along the outer thick presser spring plate.
[0011]
In the opening / closing mechanism with the presser spring plate of the container opening, the presser spring plate is selected from a plastic thin plate, a metal plate, or a composite plate made of these.
[0012]
In the opening / closing mechanism with a presser spring plate of the container opening, the openable / closable passage body made of a soft sheet is formed by attaching two soft sheets at a boundary portion of the passage.
[0013]
In the opening / closing mechanism with the presser spring plate of the container opening, the soft sheet is selected from a rubber sheet, a plastic sheet, water resistant paper, a waterproof cloth, an aluminum foil, or a composite sheet thereof.
[0014]
According to the opening / closing mechanism with the retaining spring plate of the container opening according to the present invention, it is possible to perform disposal such as incineration together with the container at the time of disposal after use, and the opening automatically closes after use. Even if the container is gripped or carried, it will not spill, so it is possible to provide an opening / closing mechanism with a retainer spring plate for the container opening that can be stored and eaten and divided many times. It was.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of an opening / closing mechanism with a presser spring plate for a container opening according to the present invention will be described with reference to the drawings.
[0016]
FIG. 1 is a schematic view showing an example in which an opening / closing mechanism with a pressing spring plate (hereinafter referred to as an opening / closing mechanism) for a container opening according to the present invention is applied to a container. In the figure, (A) shows an example of a plastic bag, (I-1) shows a case where the opening / closing mechanism 111 of the present invention is applied to a sheet-like plastic bag 101, and (I-2) shows a circular bottom 103. The case where the opening / closing mechanism 111 of the present invention is applied to the plastic bag 102 is shown.
[0017]
(B) shows an example of paper packs, (b-1) shows a case where the opening / closing mechanism 111 of the present invention is applied to a small paper pack 104 such as a fruit juice drink, and (b-2) shows a larger milk or the like. The case where the opening / closing mechanism 111 of the present invention is applied to the paper pack 105 is shown.
[0018]
(C) shows examples of bottles and PET bottles, (C-1) shows a case where the opening / closing mechanism 111 of the present invention is applied to a small bottle 106 for soft drinks, etc., (C-2) shows a large size. The case where the opening and closing mechanism 111 of the present invention is applied to a PET bottle 107 is shown.
[0019]
(D) shows an example of paper cups, and shows a case where the opening / closing mechanism 111 of the present invention is applied to the portion of the lid 109 of the paper cup 108 provided with the lid 109.
[0020]
Hereinafter, the details of the opening / closing mechanism 111 will be described.
[0021]
FIG. 2 shows an openable / closable path body made of a soft sheet, which constitutes the opening / closing mechanism 111. The passage body 1 can be formed by bonding two soft sheets, and the passage portion 2 can be opened in a cylindrical shape. Further, on both sides of the passage portion 2, there are formed stoppers 3 for holding the passage body 1 by being sandwiched between the following presser spring plates. Reference numeral 4 denotes a guide portion of the passage body 1 protruding from the position of the stopper piece 3.
[0022]
As the passage body 1, it is desirable to select a soft sheet to be used from a rubber sheet, a plastic sheet, water-resistant paper, a waterproof cloth, an aluminum foil, or a composite sheet thereof.
[0023]
In FIG. 2, (A) shows the case where the passage portion 2 of the passage body 1 is closed, and (B) shows the state where the passage portion 2 of the passage body 1 is open and the contents of the container are passing therethrough. ing.
[0024]
FIG. 3 shows a case where the passage portion 2 of the passage body 1 is heat-welded by bonding two soft sheets. In the figure, (A) shows a tapered passage portion 2 that is squeezed toward the opposite side of the guide portion 4. (B) shows the passage portion 2 which is squeezed toward the opposite side of the guide portion 4 and further has a cylindrical shape. (C) shows a passage portion 2 which is squeezed after a portion having a predetermined width toward the opposite side of the guide portion 4 and further has a cylindrical shape. (D) shows the passage portion 2 formed in a cylindrical shape having the same diameter as the guide portion 4.
[0025]
The width of the passage portion 2 of the passage body 1 is desirably a size that can be inserted without difficulty according to the diameter of the rod-shaped body to be inserted and that has a margin for allowing ventilation around the inserted rod-shaped body. In this way, when the container is filled with the contents, the filling operation can be performed without difficulty by discharging the air in the container from the surroundings while filling the contents from the rod-like body portion.
[0026]
As a means for forming the passage portion 2 in the passage body 1, a means for bonding two soft sheets and heat-welding them at the portion of the stopper piece 3 is desirable, but it is needless to say that other forming means may be used. When welding the stopper piece 3, it is sufficient to weld only the boundary with the passage portion 2.
[0027]
FIG. 4 shows an example of a presser spring plate for sandwiching the passage body 1 and opening / closing, in particular, automatically sealing. The pair of presser spring plates 5 and 6 may sandwich the passage body 1 as shown in (a) and bend in the radial direction thereof. (A) shows the case where the overall shape is a rectangle, (B) shows the case where the overall shape is a trapezoid, and (C) shows the BB cross-sectional view.
[0028]
It is desirable that the pair of presser spring plates 5 and 6 have different thicknesses, the curved outer presser spring plate 5 is thick enough to be self-supporting, and the inner presser spring plate 6 is quite flexible. Can be. Speaking of the relationship with the passage body 1, the passage body 1 requires a thin one because it requires flexibility, and the presser spring plates 5 and 6 need to have a predetermined thickness in terms of their functions. Of course, the inner presser spring plate 6 is desirably thicker than the passage body 1.
[0029]
The material of the pair of presser spring plates 5 and 6 can be selected from a plastic thin plate, a metal plate, or a composite plate using these as constituent materials. Examples of the plastic thin plate include polyethylene, polypropylene, polyester, polycarbonate and the like. In this case, it is desirable that the passage body 1 be made of the same material.
[0030]
The thickness of the presser spring plates 5 and 6 is such that when a plastic thin plate such as polyethylene is used, the inner presser spring plate 5 is such that the outer presser spring plate 5 can stand by about 0.1 to 0.5 mm. It is desirable to use a relatively thin plate 6 having a thickness of about 0.1 to 0.2 mm. If the dimensions of the presser spring plates 5 and 6 are rectangular, for example, the horizontal axis: vertical axis ratio is preferably about 2 to 1.5: 1. For example, the actual size of the horizontal axis: vertical axis ratio can be 40 mm: 25 mm, 35 mm: 20 mm, 30 mm: 15 mm, or the like.
[0031]
The pair of presser spring plates 5 and 6 may be ones sandwiching the passage body 1 as shown in (d) and curved in the length direction thereof. (D) shows a cross-sectional view taken along the line C-C when the overall shape is a rectangle, (e) shows a trapezoidal shape, and (f) shows the CC cross-sectional view.
[0032]
The curvature radius when the presser spring plates 5 and 6 are bent is preferably 15 to 30 mm. In the case of a small radius of curvature, the force of sandwiching the passage body 1 of the presser spring plates 5 and 6 is strong, and the reaction to the insertion and removal of the rod-like body 7 is good. On the contrary, the radius of curvature can be increased to adjust the force for holding the passage body 1 between the presser spring plates 5 and 6 and the force adjustment when the rod-like body 7 is inserted and removed.
[0033]
That is, this opening / closing mechanism has a structure in which the passage body 1 is sandwiched between the presser spring plates 5 and 6 as shown in FIG. 4, and the passage portion 2 is normally closed by the presser spring plates 5 and 6. It has become.
[0034]
In terms of material, it is desirable to use a single material for both the passage body 1 and the presser spring plates 5 and 6. For example, it was confirmed that polyethylene bags used in everyday homes are extremely suitable for solving the above-mentioned problems of the present invention in terms of versatility as a material, processability, and processability after being trashed. ing.
[0035]
In the present invention, as a means for bending the presser spring plates 5 and 6, the curved outer presser spring plate 5 has a thickness capable of self-supporting, and is further bent at the time of molding or subsequent processing. Then, the inner presser spring plate 6 may be curved along the presser spring plate 5.
[0036]
FIG. 5 shows a state in which the opening / closing mechanism 111 of the present invention is configured by sandwiching the passage body 1 between the presser spring plates 5 and 6. That is, both sides of the passage body 1 are sandwiched between the presser spring plates 5 and 6 as shown in (a) and assembled as shown in (b). In the assembled state, the passage body 1 is held flat as shown in FIG. When a straw or other rod-like body 7 is inserted into the passage body 1 from the guide portion 4, the inner presser spring plate 6 is pushed together with the passage body 1, and finally the passage body 1 is completely as shown in FIG. It becomes cylindrical and the inside of the container is opened.
[0037]
FIG. 6 shows means for aligning the inner presser spring plate 6 with the outer presser spring plate 5. As the means, welding both end portions of the presser spring plates 5 and 6 sandwiching the passage body 1 as in (A) and (B) is mentioned. Alternatively, as shown in (c) and (d), both end portions of the outer presser spring plate 5 may be folded back and the inner presser spring plate 6 may be inserted into the insertion guide portion 8 formed by folding back. Further, as shown in (e) and (f), both end portions of the presser spring plates 5 and 6 may be sandwiched by the U-shaped crimping means 9.
[0038]
FIG. 7 shows a means for ensuring the curvature of the outer presser spring plate 5. (A) and (B) show a state in which the folded portions 11 of the traction sheet 10 that are folded at both side ends are fitted and held at both side ends of the presser spring plates 5 and 6 that are curved and formed in an arc shape. Show. Further, (C) and (D) show a state in which one end of the outer presser spring plate 5 is extended and the folded portion 12 formed by folding back the tip is fitted into the other end of the presser spring plate 5 and held. Is. In this way, even if the force for holding the shape of the outer presser spring plate 5 is weak, the curve can be reliably maintained, and the passage body 1 can be firmly crimped.
[0039]
The operation of the container opening / closing mechanism of the present invention configured as described above will be described.
[0040]
FIG. 8 shows a state in which a straw or other rod-like body 7 is inserted into the passage body 1. The opening / closing mechanism 111 is configured to secure the passage by releasing the sticking of the passage portion 2 which is in close contact with the presser spring plates 5 and 6 by inserting the rod-like body 7 into the passage portion 2 of the passage body 1. It is. In this embodiment, a straw is used as such a rod-like body 7 to secure a more reliable passage.
[0041]
In FIG. 9 for explaining the above operation in more detail, the tip of the rod-like body 7 made of a straw is inserted from the upper end of the guide portion 4 of the passage body 1. Actually, a cap or a mounting opening is attached to this portion to make the rod-like body 7 easy to insert. When the rod-like body 7 is gradually pushed down as shown in FIGS. 1A to 1C, the passage portion 2 of the passage body 1 is expanded together with the inner presser spring plate 6.
[0042]
When the rod-like body 7 is further pushed down, the inner presser spring plate 6 is spread over the entire length along the rod-like body 7 so that the contents of the container can freely circulate as shown in FIG. .
[0043]
On the contrary, when the container opening is to be closed, the rod-like body 7 is simply pulled out. That is, the presser spring plate 6 gradually returns to the original position and is brought into close contact with the presser spring plate 5, and the passage portion 2 of the passage body 1 is automatically re-adjusted from FIG. Will adhere closely. At this time, when pressure is applied to the opening / closing mechanism 111 provided in the container opening to push the contents out of the container, the pressure is transmitted to the passage body 1 via the presser spring plates 5 and 6, and the passage body 1. The passage portion 2 is further sealed.
[0044]
【The invention's effect】
According to the opening / closing mechanism with the presser spring plate of the container opening of the present invention, the disposal such as incineration can be performed as it is together with the container at the time of disposal after use.
[0045]
In addition, since the container opening automatically closes after use, there is no spillage even if the container is grasped or carried, so that it can be stored and eaten and divided in many times.
[0046]
Further, when the entire container including the opening / closing mechanism is made of a single material, the manufacturing process is simplified, and the processing after the trash is simplified, so that a highly recyclable container can be provided. it can.
[Brief description of the drawings]
FIG. 1 is a schematic view showing an example in which an opening / closing mechanism with a presser spring plate of a container opening according to the present invention is applied to a container; (A) shows an example of a plastic bag; (B) shows an example of a paper pack (C) shows examples of bottles and PET bottles, and (d) shows examples of paper cups.
FIG. 2 shows an openable / closable passage body made of a soft sheet, which constitutes an opening / closing mechanism for a container opening according to the present invention. FIG. 2A shows a case where the passage portion of the passage body is closed. It is a perspective view and AA sectional view showing the state where the passage portion of a passage body is open and the contents of a container are passing, respectively.
FIGS. 3A to 3D are schematic perspective views showing a case where two flexible sheets are bonded to a passage body and heat-welded.
FIGS. 4A and 4B are perspective views showing examples of a presser spring plate, and FIGS. 4C and 4F are cross-sectional views taken along BB and CC, respectively. FIGS. It is.
FIGS. 5A and 5B show the assembled state of the opening / closing mechanism of the present invention, where FIG. 5A is a perspective view before assembly, FIG. 5B is an assembled state, and FIG.
FIGS. 6A to 6F are a perspective view and a cross-sectional view taken along line E-E, respectively, showing means for causing the inner presser spring plate to follow the outer presser spring plate in the opening / closing mechanism of the present invention.
FIGS. 7A to 7D are a perspective view and a sectional view taken along line FF showing another means for aligning the inner presser spring plate with the outer presser spring plate in the opening / closing mechanism of the present invention. FIGS. .
FIG. 8 is a DD enlarged cross-sectional view of FIG. 5C showing a state in which a rod-like body is inserted into the passage body.
FIGS. 9A to 9D are cross-sectional views showing in stages the state in which a rod-like body is inserted into a passage body.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Passage body 2 Passage part 3 Shifting prevention piece 4 Guide part 5,6 Pressing spring board 7 Rod-shaped body 8 Insertion guide part 9 Crimping means 10 Pulling sheet 11 Folding part 12 Folding part 101 Poly bag 102 Poly bag 103 Bottom 104 Paper pack 105 Paper pack 111 Opening and closing mechanism 106 Bottle 107 PET bottle 108 Paper cup 109 Lid 111 Opening and closing mechanism

Claims (7)

軟質シートからなる開閉可能な通路体の両面を、押えバネ板で挟み付けるとともに、この押えバネ板を所定の曲率で屈曲させて密着させることにより常態では通路体が閉じており、押えバネ板間の通路体内に棒状体を挿入した時には内側の押えバネ板が変形して通路体が開き、棒状体を引き抜いたときには内側の押えバネ板が復元力により外側の押えバネ板に密着して、通路体が閉じられるようにしたことを特徴とする容器開口部の押えバネ板付き開閉機構。The both sides of the openable path body made of a soft sheet are sandwiched between the presser spring plates, and the presser spring plate is normally bent and adhered with a predetermined curvature so that the path body is normally closed, and When the rod-shaped body is inserted into the passage body, the inner presser spring plate is deformed to open the passage body, and when the rod-shaped body is pulled out, the inner presser spring plate is brought into close contact with the outer presser spring plate by the restoring force. An opening / closing mechanism with a presser spring plate for a container opening, characterized in that the body is closed. 押えバネ板が少なくとも2枚で構成され、その外側が厚く内側が薄い厚さの異なるものである請求項1に記載の容器開口部の押えバネ板付き開閉機構。2. The opening / closing mechanism with a presser spring plate for a container opening according to claim 1, wherein the presser spring plate is composed of at least two plates, and the outer side is thick and the inner side is thin. 外側の厚い押えバネ板が所定の曲率で屈曲した状態に自立的に形成されている請求項1または2に記載の容器開口部の押えバネ板付き開閉機構。The opening / closing mechanism with a presser spring plate of the container opening according to claim 1 or 2, wherein the outer thick presser spring plate is formed in a self-supporting manner in a bent state with a predetermined curvature. 内側の薄い押えバネ板が外側の厚い押えバネ板に沿うものである請求項1ないし3のいずれかに記載の容器開口部の押えバネ板付き開閉機構。4. The opening / closing mechanism with a presser spring plate for a container opening according to any one of claims 1 to 3, wherein the inner thin presser spring plate is along the outer thick presser spring plate. 押えバネ板が、プラスチック薄板、金属板、あるいはこれらを構成材料とする複合板から選ばれてなる請求項1ないし4のいずれかに記載の容器開口部の押えバネ板付き開閉機構。The opening / closing mechanism with a presser spring plate for a container opening according to any one of claims 1 to 4, wherein the presser spring plate is selected from a plastic thin plate, a metal plate, or a composite plate made of these. 軟質シートからなる開閉可能な通路体が、2枚の軟質シートを通路の境界部分で貼付したものからなる請求項1ないし5のいずれかに記載の容器開口部の押えバネ板付き開閉機構。The opening / closing mechanism with a presser spring plate for a container opening according to any one of claims 1 to 5, wherein the openable / closable passage body made of a soft sheet is formed by attaching two soft sheets at a boundary portion of the passage. 軟質シートが、ゴムシート、プラスチックシート、耐水紙、防水布、アルミ箔あるいはこれらの複合シートから選ばれてなる請求項1ないし6のいずれかに記載の容器開口部の押えバネ板付き開閉機構。The opening / closing mechanism with a presser spring plate for a container opening according to any one of claims 1 to 6, wherein the soft sheet is selected from a rubber sheet, a plastic sheet, waterproof paper, waterproof cloth, aluminum foil, or a composite sheet thereof.
JP05121096A 1996-03-08 1996-03-08 Opening and closing mechanism with presser spring plate at container opening Expired - Fee Related JP3735928B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP05121096A JP3735928B2 (en) 1996-03-08 1996-03-08 Opening and closing mechanism with presser spring plate at container opening
PCT/JP1997/000705 WO1997032796A1 (en) 1996-03-08 1997-03-06 Opening and closing mechanism using pressure spring plates
AU22326/97A AU2232697A (en) 1996-03-08 1997-03-06 Opening and closing mechanism using pressure spring plates

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP05121096A JP3735928B2 (en) 1996-03-08 1996-03-08 Opening and closing mechanism with presser spring plate at container opening

Publications (2)

Publication Number Publication Date
JPH09240735A JPH09240735A (en) 1997-09-16
JP3735928B2 true JP3735928B2 (en) 2006-01-18

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007168375A (en) * 2005-12-26 2007-07-05 Seiko Epson Corp Liquid housing package
JP4821369B2 (en) * 2006-03-01 2011-11-24 セイコーエプソン株式会社 Liquid storage cartridge
EP3168620A1 (en) * 2015-05-28 2017-05-17 Siemens Healthcare Diagnostics Products GmbH Waste shipment system

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