JP3988155B2 - Container opening and closing device - Google Patents

Container opening and closing device Download PDF

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Publication number
JP3988155B2
JP3988155B2 JP08071297A JP8071297A JP3988155B2 JP 3988155 B2 JP3988155 B2 JP 3988155B2 JP 08071297 A JP08071297 A JP 08071297A JP 8071297 A JP8071297 A JP 8071297A JP 3988155 B2 JP3988155 B2 JP 3988155B2
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cap
ring
locking
container
mouth
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JPH10273156A (en
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敬蔵 関野
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Mikasa Sangyo Co Ltd
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Mikasa Sangyo Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS 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
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/32—Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
    • B65D41/34—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt
    • B65D41/3442—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with rigid bead or projections formed on the tamper element and coacting with bead or projections on the container
    • B65D41/3447—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with rigid bead or projections formed on the tamper element and coacting with bead or projections on the container the tamper element being integrally connected to the closure by means of bridges

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)

Description

【０００１】
【発明の属する技術分野】
この発明は瓶等の容器の上部に構成して用いられる容器の開閉装置に関する。更に詳しくは不正開封を防止できる容器の開閉装置に関する。
【０００２】
【従来の技術】
従来、前記のように不正開封を防止できる容器の開閉装置としては各種の商品が市場に提供されている。その一例としては特公平５−５５３８６号公報記載のキャップが挙げられる。このキャップは不正開封防止機能を良好に果すものである。しかしこのキャップにおいても未だ問題点がある。それはそのキャップの容器口部への装着時において、表示バンドの内側に設けられた斜め上向きのストップリングが容器口部のビードに係止しているが、このような構成では、そのキャップの開放の際にストップリングの下部が蝶番として作用しているので、その蝶番部分は合成樹脂製のため撓みを起し弾性変形するから、上記開放の際に破断されるブリッジが直ちには破断せず、使用者にもどかしさを与えることである。又他の問題として前記のストップリングは、キャップの成型の際には脱型の必要上斜め下向きに型成する。そして上記ストップリングを斜め上向きに反転させなければならない。
【０００３】
即ち加工工程が多くなり、しかもそれは成型後キャップが硬化してしまわないうちに行わなければならずその作業が面倒である。
このような問題を改良するものとしては、特公昭５８−３２１０５号公報記載の容器蓋が挙げられる。この容器蓋は前記表示バンドに相当するピルファープルーフ裾部の内部に、前記ビードに相当するあご部に係止するフラップ片を周方向に形成したものであり、これにより、前記のブリッジの容易に破断しないもどかしさの問題と、ストップリング反転加工の問題は解決された。しかし、このように改良されたキャップにおいては予想されない他の問題が派生していた。それは前記のようにフラップ片をピルファープルーフ裾部の内側に形成したことにより、このキャップを容器の口部に装着する場合、前記フラップ片はあご部により半径方向外方に変形させられるが、その変形は前記ピルファープルーフ裾部の内面により止められてしまい、それ以上の変形ができないのである。このためキャップの装着は強い力を要することとなり、その力により前記ブリッジに相当する橋絡部が破損する恐れを有する。
【０００４】
【発明が解決しようとする課題】
この発明は前記のような問題を解決するためになされたもので、その目的はキャップの容器口部への装着時において、容器口部のあご部の下面にリングに設けた係止片が係止し、開放時において前記リングとキャップ本体間のブリッジが破断する形式の容器の開閉装置において、前記従来例に見るようなブリッジの破断の容易に起こらないもどかしさがなく、又ストップリング反転等の面倒で余分な製造工程を必要とせず、しかもキャップを容器口部に装着する場合に、充分に半径方向外方へ弾性変形して容器口部に設けられたあご部を容易に通過させ、ブリッジ破断の恐れの全くない係止部材を有する、容器の開閉装置を提供することである。
【０００５】
【課題を解決するための手段】
前記の目的を達成するこの発明の容器の開閉装置について述べるとそれは、容器１の口部２に、かつ上から下に順次設けられた螺条３及び突部４；前記口部２に装着する合成樹脂製で、頂壁５と、内面に螺溝を有する筒部６、及び該筒部６の下端に形成された下部が前記突部４より大径となる傾斜部７から成るキャップ８の本体９；前記傾斜部７の下端に複数の連接部１０を介して一体に設けられたリング１１；該リング１１に、基端部１２が該リング１１の厚み方向において、多くとも内周面１３と同一面に達して設けられ、かつ先端部１４が前記内周面１３より内側に突出して設けられた係止部材１５；前記先端部１４に形成された、該キャップ８の、前記口部２に装着の際に、前記突部４の下に入り上下方向に係止する係止部１６；から成ることを特徴とする容器の開閉装置であって；前記基端部１２と係止部１６間にはアーム１８が、リング１１の厚み方向において多くとも内周面１３と同一面に達して設けられていることを特徴とする容器の開閉装置である。
【０００６】
この発明は、前記係止部１６はその上面１７が水平面を形成していることを特徴とする容器の開閉装置である。
【０００７】
この発明は、前記係止部１６はその内面１９に、先端部１４方向及び又は基端部１２方向に内側程小周となる斜面２０、２１を有している容器の開閉装置である。
【０００８】
この発明は、前記基端部１２はリング１１の上面２２から立設させられている容器の開閉装置である。
【０００９】
この発明は、容器１の口部２に、かつ上から下に順次設けられた螺条３及び突部４；前記口部２に装着する合成樹脂製で、頂壁５と、内面に螺溝を有する筒部６、及び該筒部６の下端に形成された下部が前記突部４より大径となる傾斜部７から成るキャップ８の本体９；前記傾斜部７の下端に複数の連接部１０を介して一体に設けられたリング１１；該リング１１に、基端部１２が該リング１１の厚み方向において、多くとも内周面１３と同一面に達して設けられ、かつ先端部１４が前記内周面１３より内側に突出して設けられた係止部材１５；前記先端部１４に形成された、該キャップ８の、前記口部２に装着の際に、前記突部４の下に入り上下方向に係止する係止部１６；から成る容器の開閉装置であって；
前記係止部材１５は先端部１４がキャップの回動における閉止方向を向いて形成されていることを特徴とする容器の開閉装置である。
【００１０】
この発明は、容器１の口部２に、かつ上から下に順次設けられた螺条３及び突部４；前記口部２に装着する合成樹脂製で、頂壁５と、内面に螺溝を有する筒部６、及び該筒部６の下端に形成された下部が前記突部４より大径となる傾斜部７から成るキャップ８の本体９；前記傾斜部７の下端に複数の連接部１０を介して一体に設けられたリング１１；該リング１１に、基端部１２が該リング１１の厚み方向において、多くとも内周面（１３）と同一面に達して設けられ、かつ先端部１４が前記内周面１３より内側に突出して設けられた係止部材１５；前記先端部１４に形成された、該キャップ８の、前記口部２に装着の際に、前記突部４の下に入り上下方向に係止する係止部１６；から成る容器の開閉装置であって；
前記係止部材１５は先端部１４がキャップの回動における閉止方向を向いて形成され、
前記基端部１２と係止部１６間にはアーム１８が、リング１１の厚み方向において多くとも内周面１３と同一面に達して設けられていることを特徴とする容器の開閉装置である。
【００１１】
この発明は、係止部材１５は先端部１４がキャップの回動における開放方向を向いて形成されている容器の開閉装置である。
【００１２】
この発明は、アーム１８の下面又はリング１１の上面のいずれか一方は、アーム１８の下方への加圧による変形を抑制する脚部３１を有している容器の開閉装置である。またこの発明は、容器１の、突部４の下方の外径は係止部材１５の係止部１６の内径より小さく形成されている容器の開閉装置である。
【００１３】
【実施例】
図１〜図５において１は容器であり、一例として瓶を示す。２はその口部でその外周に上部から下方に順次螺条３及び突部４が形成されている。８は合成樹脂製のキャップであり、９はその本体で、頂壁５とその周囲に設けられた、内側に螺溝を有する筒部６から成っている。７は該筒部６下端に形成された下部が前記突部４より大径となる傾斜部を示す。そして１１は該傾斜部７と破断し易い連接部１０を介して、一体に設けられた帯状のリングである。
【００１４】
又、該リング１１に、図３、図４において理解し易いように係止部材１５が、その基端部１２を該リング１１の厚み方向において、多くとも内周面１３と同一面に達して設けられており、かつその先端部１４が前記内周面１３より内側に突出して設けられている。そして前記先端部１４には係止部１６が設けられており、該係止部１６は、前記キャップ８を前記口部２に装着した場合に、前記突部４の下に入り込み、上下方向に係止するようになっている。なおこの係止部１６はその上面１７が、水平面に形成されている。又、前記係止部１６と前記基端部１２との間にはアーム１８が設けられ、該アーム１８は前記リング１１の厚さ方向において、多くともリング１１の内周面１３と同一面に達して設けられている。次に、前記係止部１６は、先端部方向及び又は基端部方向に内側程小周となる斜面２０、２１が形成されている。
【００１５】
又、前記基端部１２はリング１１の上面２２から上方に向けて柱状に立設させられておりキャップ装置の際にその上部は前記傾斜部７下端に圧接するようになっている。
次に前記係止部材１５は図５に示すようにキャップ８の回転における閉止方向を向いて形成されている。なお上記方向は図示は省略するが開放方向を向いて形成されていても良く、この発明においてはその両方を含むものである。
そして前記アーム１８の下面又はリング１１の上面のいずれか一方は、アーム１８の下方への加圧による変形を抑制する脚部３１が形成されている。
又前記容器１の、突部４の下方の外径は係止部材１５の係止部１６の内径より小さく形成されている。これにより前記連接部１０が破断された際にリング１１が直ちに落下するように形成されている。
【００１６】
次に図６に示すものは、この発明によるキャップ８の成型に用いる金型を示し、２４はキャビティー、２５はゲート、２６は二つ割りのスライドコア、２７は回転コア、２８は固定ピン、２９は固定コア、３０は離型コアである。図示のようにしてキャップ８が成型された後キャビティー２４は矢印Ａ２４方向に移動し、スライドコア２６は矢印Ａ２６方向に開いて移動し、回転コア２７が、キャップ８の螺解方向に回転しつつ図において下方に移動する。そして離型コア３０を前記矢印Ａ２４方向に移動させることにより、固定ピン２８及び固定コア２９からキャップ８が外し取られる。
なお図３及び図１において３１は前記アーム１８の下面に設けられた脚部であるが、これはこのほか図示は省略するがリング１１の上面に設けられていてもよい。この脚部３１は次のような作用を行う。キャップ８の装着の際はリング１１が突部４により上方に加圧され、このためアーム１８及び係止部１６が前記傾斜部７の下面に加圧された場合の支持部として前記アーム１８及び係止部１６等が加圧されて変形してしまうのを防止することができ、又係止部１６が前記突部４を押し上げる場合にはアーム１８を介してリング１１に圧接して反力を生じ、係止部１６が上方から押圧されて下方に変形してしまうのを防止することができ、これによりキャップ８開放の際に連接部１０に破断の力が直達し、壮快に破断させることができるようになっている。
【００１７】
前記のように構成されたこの容器の開閉装置はまず図２、３に示すようにキャップ８が容器１の口部２に装着され、前記係止部１６は前記突部４の下面に圧接する。この状態において不正にこのキャップ８を開放しようとすると、キャップ８は螺解により上昇し、リング１１は係止部１６と突部４の係止により上昇できず、このため連接部１０が破断し、リング１１は落下する。これにより不正な開放が露見する。消費者等が使用する場合は前記のようにキャップ８を螺解させ、連接部１０を破断させ、キャップ８を開放して容器１内の図示しない液体商品等を注出する。
【００１８】
【発明の効果】
この発明は、前記のように構成されたことにより、このキャップ８が不正に開放された場合、連接部１０は破断され、容器口部の下部の、容器１の肩部の上に落下する。これによりキャップ８が開放されたことが認められるから、不正な開放を防止することができる。又前記従来例に述べたような、ストップリングがバンドの内側に斜め上向きに形成されて、このストップリングが容器口部のビードに接当する形式でなく、係止部材１５はリング１１に基端部１２が、リング１１の厚み方向において多くとも内周面１３と同一面に達して設けられ、かつ先端部１４が前記内周面１３より内側に突出して設けられたことにより、キャップ８の開放の際に、係止部材１５の上下方向の弾性変形は大巾に少く形成されたことになり、このため連接部１０の破断は直ちに起り、破断しにくいもどかしさを解消できる。
又前記従来例のようなストップリング反転の余分な工程を省略できる。又係止部材１５はキャップ８装着の際にリング１１の厚み内に入って変形できるから、半径方向のフレキシビリティを増大させることができ、従ってキャップ８の装着の際に連接部１０の破損の恐れをなくすことができる。
【００１９】
この発明は、前記のように構成されたことによりその上面１７が全面的に前記突部４下面に接することができるから、キャップ８の螺解の際にリング１１の上昇を確実に抑止でき、連接部１０の破断を確実にかつ前記螺解と同時に直ちに壮快に破断させることができる。更に前記従来例の特公昭５９−３２１０５号におけるフラップ片は高さ方向に斜めに形成されているが、これではフラップ片があご部を押し上げる場合に周方向にずれを起し、強く直ちに押し上げられないもどかしさを与える。この発明の係止部１５はこれと異り、上面１７を水平面に形成したことにより、強く直ちに突部４を押し上げることができ、直ちに連接部１０を破断することができる。
【００２０】
この発明は前記のように構成されたことにより、係止部１６を前記基端部１２から離すことができ、これにより係止部１６に半径方向のフレキシビリティを増大できると共に、係止部１６が突部４を押し上げる際はアーム１８はリング１１に接して反力を生じるから、係止部１６は上下方向には剛性を発揮でき、これにより連接部１０の破断を直ちに壮快に行わせることができる。こうしてフレキシビリティと剛性の相反する機能を発揮させることができる。
【００２１】
この発明は、前記のように構成されたことにより、係止部１６を形成する金型から、該金型を回転させて脱型する場合に抵抗を少くすることができ、脱型を容易にすることができる。又他の効果として容器１の口部２にキャップ８を装着する場合に抵抗を少なくすることができ、このため、その際に連接部１０の破損の恐れをなくすことができる。
【００２２】
この発明は前記のように構成されたことにより、立ち上り部分は柱状に立ち上って形成されている結果このキャップ８を容器１の口部２に装着の際、この立上り部分はキャップ８の傾斜部７の下端に圧接する。このため前記傾斜部７とリング１１間に設けられている連接部１０に過大な力がかかって破損するのを防止することができる。
【００２３】
この発明は前記のように構成されたことにより、キャップ８成型後、回転金型を回転して脱型するが、その場合回転に対し順応方向となるため、即ち先端部分が回転方向に対し後方となるため、係止部材１５が破損する恐れをなくすことができる。従って又その際の、連接部１０破断の恐れをなくすことができる。
【００２４】
この発明は前記のように構成されたことにより、キャッピングの際に抵抗が少く、従って連接部１０破損の恐れをなくすことができる。この発明は、前記のように構成されたことにより、キャップ８装着の際はリング１１が突部４により上方に加圧され、このためアーム１８及び係止部１６が傾斜部７の下面に加圧された場合の支持部として役立ち、アーム１８及び係止部１６が変形してしまうのを防止できる。又キャップ８開放の際は係止部１６が突部４を押し上げる場合にはアーム１８を介してリング１１に圧接して反力を生じ、係止部１６が上方から押圧されて変形してしまうのを防止することができ、これによりキャップ開放の際に連接部１０に破断の力が直達し、壮快に破断させることができる。
【００２５】
この発明は前記のように構成されたことにより、不正な開放の際にリング１１は容器１の口部２外側を落下し、容器１の口部２外側に留まることができないので、開放されたことを容易に認めることができる。
【図面の簡単な説明】
【図１】この発明の実施例を示し、容器の開閉装置の部分であるキャップの部分断面図である。
【図２】同じく容器の開閉装置の部分断面図である。
【図３】図２に示す装置の部分の斜視断面図である。
【図４】図３に示す装置の部分の斜視断面図である。
【図５】図１のＡ−Ａ線矢視断面図である。
【図６】図１に示すキャップの成型の際の金型構成を示す断面図である。
【符号の説明】
１ 容器
２ 口部
３ 螺条
４ 突部
５ 頂壁
６ 筒部
７ 傾斜部
８ キャップ
９ 本体
１０ 連接部
１１ リング
１２ 基端部
１３ 内周面
１４ 先端部
１５ 係止部材
１６ 係止部
１７ 上面
１８ アーム
１９ 内面
２０ 斜面
２１ 斜面
２２ 上面
３１ 脚部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a container opening and closing device that is configured and used on an upper part of a container such as a bottle. More particularly, the present invention relates to a container opening / closing device that can prevent unauthorized opening.
[0002]
[Prior art]
Conventionally, various products have been provided on the market as container opening and closing devices that can prevent unauthorized opening as described above. As an example, there is a cap described in Japanese Patent Publication No. 5-55386. This cap performs well the function of preventing unauthorized opening. However, there are still problems with this cap. When the cap is attached to the container mouth, the diagonally upward stop ring provided inside the display band is locked to the bead of the container mouth. In such a configuration, the cap is opened. Since the lower part of the stop ring acts as a hinge at the time, the hinge part is made of a synthetic resin and is bent and elastically deformed, so the bridge that is broken at the time of opening does not break immediately, It is to give a frustration to the user. As another problem, the stop ring is formed obliquely downward because of the need for demolding when the cap is molded. The stop ring must be inverted diagonally upward.
[0003]
That is, the number of processing steps increases, and it must be performed before the cap is cured after molding, which is troublesome.
A container lid described in Japanese Examined Patent Publication No. 58-32105 can be cited as a means for improving such a problem. This container lid is formed by forming a flap piece to be engaged with a chin portion corresponding to the bead in a circumferential direction inside a pill fur proof hem portion corresponding to the display band. The problem of frustration that does not break and the problem of stop ring reversal processing have been solved. However, other unexpected problems have been derived with such improved caps. Since the flap piece is formed inside the pilfer proof hem as described above, when the cap is attached to the mouth of the container, the flap piece is deformed radially outward by the jaw part, The deformation is stopped by the inner surface of the pilfer proof skirt, and no further deformation is possible. For this reason, mounting | wearing with a cap requires a strong force and there exists a possibility that the bridge part corresponding to the said bridge may be damaged by the force.
[0004]
[Problems to be solved by the invention]
The present invention has been made to solve the above-described problems, and its object is to engage a locking piece provided on a ring on the lower surface of the jaw portion of the container mouth portion when the cap is attached to the container mouth portion. In the opening and closing device of the container in which the bridge between the ring and the cap body is broken at the time of stopping and opening, there is no frustration that the bridge breaks easily as seen in the conventional example, and the stop ring is reversed, etc. When the cap is attached to the container mouth, it is easy to pass through the jaw provided on the container mouth by being elastically deformed sufficiently outward in the radial direction. It is an object of the present invention to provide a container opening and closing device having a locking member that is not at risk of bridge breakage.
[0005]
[Means for Solving the Problems]
The container opening and closing device of the present invention that achieves the above object will be described in that it is mounted on the mouth 2 of the container 1 and the screw 3 and the protrusion 4 that are sequentially provided from the top to the bottom; The cap 8 is made of a synthetic resin, and includes a top wall 5, a cylindrical portion 6 having a screw groove on the inner surface, and an inclined portion 7 having a lower portion formed at the lower end of the cylindrical portion 6 having a larger diameter than the protruding portion 4. A main body 9; a ring 11 integrally provided at a lower end of the inclined portion 7 via a plurality of connecting portions 10; a base end portion 12 of the ring 11 in the thickness direction of the ring 11 at most, an inner peripheral surface 13; A locking member 15 provided so as to reach the same plane and having a tip portion 14 projecting inward from the inner peripheral surface 13; the mouth portion 2 of the cap 8 formed on the tip portion 14 A locking portion 16 that enters under the projection 4 and locks in the vertical direction when mounted on What switchgear der container characterized by comprising; arm 18 between the proximal end portion 12 and the engaging portion 16, reaches the same plane as the inner peripheral surface 13 at the most in the thickness direction of the ring 11 A container opening and closing device characterized by being provided .
[0006]
The present invention is the container opening and closing device characterized in that the upper surface 17 of the locking portion 16 forms a horizontal plane .
[0007]
The present invention is a container opening and closing device in which the locking portion 16 has inclined surfaces 20 and 21 on its inner surface 19 which are smaller in diameter toward the inside in the distal end portion 14 direction and / or the proximal end portion 12 direction .
[0008]
In the present invention, the base end portion 12 is a container opening / closing device in which the base end portion 12 is erected from the upper surface 22 of the ring 11 .
[0009]
The present invention includes a screw 3 and a protrusion 4 which are provided in the mouth 2 of the container 1 in order from the top to the bottom; made of a synthetic resin to be attached to the mouth 2 and having a top wall 5 and a thread on the inner surface. A main body 9 of a cap 8 comprising a cylindrical portion 6 having an inclined portion 7 having a lower portion formed at the lower end of the cylindrical portion 6 and having a diameter larger than that of the projecting portion 4; a plurality of connecting portions at the lower end of the inclined portion 7 A ring 11 provided integrally via 10; a base end portion 12 is provided on the ring 11 so as to reach at least the same surface as the inner peripheral surface 13 in the thickness direction of the ring 11, and a tip end portion 14 is provided. A locking member 15 that protrudes inwardly from the inner peripheral surface 13; enters the cap 2 of the cap 8 formed at the distal end portion 14, and enters under the projection 4. A container opening and closing device comprising: a locking portion 16 that locks in a vertical direction;
The locking member 15 is a container opening and closing device characterized in that the distal end portion 14 is formed to face the closing direction in the rotation of the cap .
[0010]
The present invention includes a screw 3 and a protrusion 4 which are provided in the mouth 2 of the container 1 in order from the top to the bottom; made of a synthetic resin to be attached to the mouth 2 and having a top wall 5 and a thread on the inner surface. A main body 9 of a cap 8 comprising a cylindrical portion 6 having an inclined portion 7 having a lower portion formed at the lower end of the cylindrical portion 6 and having a diameter larger than that of the projecting portion 4; a plurality of connecting portions at the lower end of the inclined portion 7 A ring 11 provided integrally via 10; a base end portion 12 is provided on the ring 11 so as to reach the same plane as the inner peripheral surface (13) in the thickness direction of the ring 11, and a tip portion 14 is a locking member 15 provided so as to protrude inward from the inner peripheral surface 13; when the cap 8 formed on the tip end portion 14 is attached to the mouth portion 2, A container opening and closing device comprising: a locking portion 16;
The locking member 15 is formed with the distal end portion 14 facing the closing direction in the rotation of the cap,
The container opening and closing device is characterized in that an arm 18 is provided between the base end portion 12 and the locking portion 16 so as to reach at least the same surface as the inner peripheral surface 13 in the thickness direction of the ring 11. .
[0011]
In the present invention, the locking member 15 is a container opening / closing device in which the tip end portion 14 is formed in the opening direction in the rotation of the cap .
[0012]
The present invention is a container opening / closing device in which either the lower surface of the arm 18 or the upper surface of the ring 11 has a leg portion 31 that suppresses deformation due to the downward pressure of the arm 18. The present invention is also a container opening and closing device in which the outer diameter of the container 1 below the protrusion 4 is smaller than the inner diameter of the locking portion 16 of the locking member 15 .
[0013]
【Example】
1 to 5, reference numeral 1 denotes a container, which shows a bottle as an example. Reference numeral 2 denotes a mouth portion, and a thread 3 and a protrusion 4 are formed on the outer periphery in order from the top to the bottom. Reference numeral 8 denotes a synthetic resin cap. Reference numeral 9 denotes a main body, which is composed of a top wall 5 and a cylindrical portion 6 provided on the periphery thereof and having an inner thread. Reference numeral 7 denotes an inclined portion in which a lower portion formed at the lower end of the cylindrical portion 6 has a larger diameter than the protruding portion 4. Reference numeral 11 denotes a belt-like ring provided integrally with the inclined portion 7 via the connecting portion 10 that is easily broken.
[0014]
Further, as shown in FIGS. 3 and 4, the locking member 15 is provided on the ring 11 so that the base end portion 12 reaches at most the same surface as the inner peripheral surface 13 in the thickness direction of the ring 11. The front end portion 14 is provided so as to protrude inward from the inner peripheral surface 13. The front end portion 14 is provided with a locking portion 16, and when the cap 8 is attached to the mouth portion 2, the locking portion 16 enters under the projecting portion 4 and extends in the vertical direction. It is designed to be locked. In addition, the upper surface 17 of this latching | locking part 16 is formed in the horizontal surface. Further, an arm 18 is provided between the locking portion 16 and the base end portion 12, and the arm 18 is at most flush with the inner peripheral surface 13 of the ring 11 in the thickness direction of the ring 11. Reached. Next, the locking portion 16 is formed with slopes 20 and 21 that become smaller inward in the distal end direction and / or the proximal end direction.
[0015]
Further, the base end portion 12 is erected in a column shape upward from the upper surface 22 of the ring 11, and the upper portion thereof is in pressure contact with the lower end of the inclined portion 7 when the cap device is used.
Next, the locking member 15 is formed so as to face the closing direction in the rotation of the cap 8 as shown in FIG. In addition, although the said direction is abbreviate | omitted illustration, you may be formed facing the open direction, and in this invention, both are included.
Further, either one of the lower surface of the arm 18 and the upper surface of the ring 11 is formed with a leg portion 31 that suppresses deformation due to the downward pressing of the arm 18.
The outer diameter of the container 1 below the protrusion 4 is smaller than the inner diameter of the locking portion 16 of the locking member 15. As a result, the ring 11 is formed to drop immediately when the connecting portion 10 is broken.
[0016]
Next, what is shown in FIG. 6 is a mold used for molding the cap 8 according to the present invention. Reference numeral 24 denotes a cavity, 25 denotes a gate, 26 denotes a split slide core, 27 denotes a rotating core, 28 denotes a fixing pin, 29 Is a fixed core, and 30 is a release core. After the cap 8 is molded as shown, the cavity 24 moves in the direction of arrow A24, the slide core 26 opens and moves in the direction of arrow A26, and the rotary core 27 rotates in the screwing direction of the cap 8. While moving downward in the figure. Then, the cap 8 is removed from the fixed pin 28 and the fixed core 29 by moving the release core 30 in the direction of the arrow A24.
3 and 1, reference numeral 31 denotes a leg portion provided on the lower surface of the arm 18, but this may be provided on the upper surface of the ring 11 although not shown. The leg 31 performs the following operation. When the cap 8 is mounted, the ring 11 is pressed upward by the protrusion 4, and thus the arm 18 and the arm 18 and the locking portion 16 are supported as a support when the lower surface of the inclined portion 7 is pressed. It is possible to prevent the locking portion 16 and the like from being pressed and deformed, and when the locking portion 16 pushes up the projection 4, the reaction force is pressed against the ring 11 via the arm 18. It is possible to prevent the locking portion 16 from being pressed from above and to be deformed downward, whereby the breaking force reaches the connecting portion 10 when the cap 8 is opened, and the breaking portion 16 is broken brilliantly. Be able to.
[0017]
In this container opening and closing device configured as described above, a cap 8 is first mounted on the mouth 2 of the container 1 as shown in FIGS. 2 and 3, and the locking part 16 is pressed against the lower surface of the protrusion 4. . If the cap 8 is illegally opened in this state, the cap 8 is lifted by screwing, and the ring 11 cannot be lifted by the locking of the locking portion 16 and the protrusion 4, so that the connecting portion 10 is broken. The ring 11 falls. This reveals unauthorized opening. When used by a consumer or the like, the cap 8 is screwed as described above, the connecting portion 10 is broken, the cap 8 is opened, and liquid merchandise (not shown) in the container 1 is poured out.
[0018]
【The invention's effect】
This invention, by having the structure described above, when the cap 8 is illegally opened, connecting portion 10 is broken, the lower portion of the container opening, fall onto the shoulder portion of the container 1 . As a result, it is recognized that the cap 8 has been opened, so that unauthorized opening can be prevented. Further, as described in the prior art, the stop ring is formed obliquely upward on the inner side of the band, and this stop ring is not in contact with the bead at the container mouth portion, and the locking member 15 is based on the ring 11. The end portion 12 is provided so as to reach at most the same surface as the inner peripheral surface 13 in the thickness direction of the ring 11, and the tip end portion 14 is provided so as to protrude inward from the inner peripheral surface 13. At the time of opening, the elastic deformation in the vertical direction of the locking member 15 is greatly reduced, so that the connecting portion 10 breaks immediately and the frustration that is difficult to break can be eliminated.
Further, an extra step of reversing the stop ring as in the conventional example can be omitted. Further, since the locking member 15 can be deformed by entering the thickness of the ring 11 when the cap 8 is mounted, the flexibility in the radial direction can be increased. Therefore, when the cap 8 is mounted, the connecting portion 10 is damaged. You can eliminate fear.
[0019]
This invention has a top surface 17 by having the structure described above is because it is possible to contact with the projection 4 lower surface entirely, can be reliably suppressed the increase of the ring 11 when the threaded solutions cap 8 The breakage of the connecting portion 10 can be surely and immediately and brilliantly broken simultaneously with the screwing. Further, the flap piece in Japanese Patent Publication No. 59-32105 of the conventional example is formed obliquely in the height direction. However, when the flap piece pushes up the jaw part, the flap piece is displaced in the circumferential direction and is pushed up strongly and immediately. Give no frustration. The locking portion 15 of the present invention is different from this, and by forming the upper surface 17 in a horizontal plane, the protrusion 4 can be pushed up strongly and immediately, and the connecting portion 10 can be broken immediately.
[0020]
By this invention constructed as described above, with the locking portion 16 can be separated from the proximal end 12, thereby increasing the radial flexibility to the locking portion 16, the locking portion When 16 pushes up the protrusion 4, the arm 18 comes into contact with the ring 11 and generates a reaction force. Therefore, the locking portion 16 can exhibit rigidity in the vertical direction, thereby causing the connecting portion 10 to break immediately and magnificently. be able to. In this way, the functions of flexibility and rigidity can be exhibited.
[0021]
This invention, by having the structure described above, the mold for forming the locking portion 16, it is possible to reduce the resistance when demolding by rotating the mold, facilitate demolding Can be. As another effect, the resistance can be reduced when the cap 8 is attached to the mouth portion 2 of the container 1, and therefore, the risk of damage to the connecting portion 10 can be eliminated.
[0022]
By this invention constructed as described above, when the rising portion of the mounting of the cap 8 results that are formed in rose up to the pillar to the mouth portion 2 of the container 1, the rising portion is inclined portion of the cap 8 7 is in pressure contact with the lower end. Therefore, it is possible to prevent the connecting portion 10 provided between the inclined portion 7 and the ring 11 from being damaged due to excessive force.
[0023]
By this invention constructed as described above, after the cap 8 molded, but demolded by rotating the rotary mold, since the adaptation direction to that when the rotation, i.e., the tip portion relative to the rotational direction Since it becomes back, the possibility that the locking member 15 may be damaged can be eliminated. Therefore, the fear of breakage of the connecting portion 10 at that time can be eliminated.
[0024]
This invention by having the structure described above, the resistance at the time of capping less, thus it is possible to eliminate the risk of the connecting portion 10 damage. This invention, by having the configuration described above, when the cap 8 mounted ring 11 is pressurized above the projections 4, thus arm 18 and the locking portion 16 on the lower surface of the inclined portion 7 It can serve as a support portion when pressurized, and can prevent the arm 18 and the locking portion 16 from being deformed. Also, when the cap 8 is opened, if the locking portion 16 pushes up the protrusion 4, a reaction force is generated by pressing against the ring 11 via the arm 18, and the locking portion 16 is pressed from above to be deformed. Therefore, when the cap is opened, the breaking force reaches the connecting portion 10 directly, and it can be broken brilliantly.
[0025]
By this invention constructed as described above, the ring 11 upon unauthorized opening will fall mouth 2 outside of the container 1, it is not possible to stay in the mouth portion 2 outside of the container 1, it is opened Can be easily recognized.
[Brief description of the drawings]
FIG. 1 is a partial sectional view of a cap, which is a part of a container opening and closing device, showing an embodiment of the present invention.
FIG. 2 is a partial sectional view of the container opening / closing device.
3 is a perspective sectional view of a portion of the apparatus shown in FIG.
4 is a perspective sectional view of a portion of the apparatus shown in FIG.
5 is a cross-sectional view taken along line AA in FIG.
6 is a cross-sectional view showing a mold configuration when the cap shown in FIG. 1 is molded. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Container 2 Mouth part 3 Thread 4 Projection part 5 Top wall 6 Cylinder part 7 Inclination part 8 Cap 9 Main body 10 Connection part 11 Ring 12 Base end part 13 Inner peripheral surface 14 Tip part 15 Locking member 16 Locking part 17 Upper surface 18 Arm 19 Inner surface 20 Slope 21 Slope 22 Upper surface 31 Leg

Claims (9)

容器（１）の口部（２）に、かつ上から下に順次設けられた螺条（３）及び突部（４）；前記口部（２）に装着する合成樹脂製で、頂壁（５）と、内面に螺溝を有する筒部（６）、及び該筒部（６）の下端に形成された下部が前記突部（４）より大径となる傾斜部（７）から成るキャップ（８）の本体（９）；前記傾斜部（７）の下端に複数の連接部（１０）を介して一体に設けられたリング（１１）；該リング（１１）に、基端部（１２）が該リング（１１）の厚み方向において、多くとも内周面（１３）と同一面に達して設けられ、かつ先端部（１４）が前記内周面（１３）より内側に突出して設けられた係止部材（１５）；前記先端部（１４）に形成された、該キャップ（８）の、前記口部（２）に装着の際に、前記突部（４）の下に入り上下方向に係止する係止部（１６）；から成る容器の開閉装置であって；
前記基端部（１２）と係止部（１６）間にはアーム（１８）が、リング（１１）の厚み方向において多くとも内周面（１３）と同一面に達して設けられていることを特徴とする容器の開閉装置。 A screw (3) and a protrusion (4) provided in order from the top to the bottom of the mouth (2) of the container (1); made of synthetic resin to be attached to the mouth (2), the top wall ( 5) and a cap portion comprising a cylindrical portion (6) having a screw groove on the inner surface, and an inclined portion (7) whose lower portion formed at the lower end of the cylindrical portion (6) has a larger diameter than the protruding portion (4). A main body (9) of (8); a ring (11) integrally provided at a lower end of the inclined portion (7) via a plurality of connecting portions (10); a base end portion (12 ) In the thickness direction of the ring (11) is provided so as to reach at least the same surface as the inner peripheral surface (13), and the tip end portion (14) protrudes inward from the inner peripheral surface (13). When the cap (8) formed on the tip end portion (14) is attached to the mouth portion (2), the locking member (15) is below the protrusion (4). Ri engaging portion (16) for locking in the vertical direction; a switchgear vessel made of;
Between the base end portion (12) and the locking portion (16), an arm (18) is provided so as to reach at least the same surface as the inner peripheral surface (13) in the thickness direction of the ring (11). A container opening and closing device. 前記係止部（１６）はその上面（１７）が水平面を形成していることを特徴とする請求項１記載の容器の開閉装置。The container opening and closing device according to claim 1, wherein the upper surface (17) of the locking portion (16) forms a horizontal plane. 前記係止部（１６）はその内面（１９）に、先端部（１４）方向及び又は基端部（１２）方向に内側程小周となる斜面（２０、２１）を有している請求項１、又は２記載の容器の開閉装置。 The said latching | locking part (16) has the inclined surface (20, 21) which becomes a small circumference the inner side in the front- end | tip part (14) direction or the base end part (12) direction in the inner surface (19) . Or the opening and closing apparatus of the container of 2. 前記基端部（１２）はリング（１１）の上面（２２）から立設させられている請求項１、２、又は３記載の容器の開閉装置。The container opening and closing device according to claim 1, 2, or 3, wherein the base end (12) is erected from an upper surface (22) of the ring (11) . 容器（１）の口部（２）に、かつ上から下に順次設けられた螺条（３）及び突部（４）；前記口部（２）に装着する合成樹脂製で、頂壁（５）と、内面に螺溝を有する筒部（６）、及び該筒部（６）の下端に形成された下部が前記突部（４）より大径となる傾斜部（７）から成るキャップ（８）の本体（９）；前記傾斜部（７）の下端に複数の連接部（１０）を介して一体に設けられたリング（１１）；該リング（１１）に、基端部（１２）が該リング（１１）の厚み方向において、多くとも内周面（１３）と同一面に達して設けられ、かつ先端部（１４）が前記内周面（１３）より内側に突出して設けられた係止部材（１５）；前記先端部（１４）に形成された、該キャップ（８）の、前記口部（２）に装着の際に、前記突部（４）の下に入り上下方向に係止する係止部（１６）；から成る容器の開閉装置であって；
前記係止部材（１５）は先端部（１４）がキャップの回動における閉止方向を向いて形成されていることを特徴とする容器の開閉装置。 A screw (3) and a protrusion (4) provided in order from the top to the bottom of the mouth (2) of the container (1); made of synthetic resin to be attached to the mouth (2), the top wall ( 5) and a cap portion comprising a cylindrical portion (6) having a screw groove on the inner surface, and an inclined portion (7) whose lower portion formed at the lower end of the cylindrical portion (6) has a larger diameter than the protruding portion (4). A main body (9) of (8); a ring (11) integrally provided at a lower end of the inclined portion (7) via a plurality of connecting portions (10); a base end portion (12 ) In the thickness direction of the ring (11) is provided so as to reach at least the same surface as the inner peripheral surface (13), and the tip end portion (14) protrudes inward from the inner peripheral surface (13). When the cap (8) formed on the tip end portion (14) is attached to the mouth portion (2), the locking member (15) is below the protrusion (4). Ri engaging portion (16) for locking in the vertical direction; a switchgear vessel made of;
The container opening / closing device according to claim 1, wherein the locking member (15) is formed such that a tip end portion (14) faces a closing direction in rotation of the cap . 容器（１）の口部（２）に、かつ上から下に順次設けられた螺条（３）及び突部（４）；前記口部（２）に装着する合成樹脂製で、頂壁（５）と、内面に螺溝を有する筒部（６）、及び該筒部（６）の下端に形成された下部が前記突部（４）より大径となる傾斜部（７）から成るキャップ（８）の本体（９）；前記傾斜部（７）の下端に複数の連接部（１０）を介して一体に設けられたリング（１１）；該リング（１１）に、基端部（１２）が該リング（１１）の厚み方向において、多くとも内周面（１３）と同一面に達して設けられ、かつ先端部（１４）が前記内周面（１３）より内側に突出して設けられた係止部材（１５）；前記先端部（１４）に形成された、該キャップ（８）の、前記口部（２）に装着の際に、前記突部（４）の下に入り上下方向に係止する係止部（１６）；から成る容器の開閉装置であって；
前記係止部材（１５）は先端部（１４）がキャップの回動における閉止方向を向いて形成され、
前記基端部（１２）と係止部（１６）間にはアーム（１８）が、リング（１１）の厚み方向において多くとも内周面（１３）と同一面に達して設けられていることを特徴とする容器の開閉装置。 A screw (3) and a protrusion (4) provided in order from the top to the bottom of the mouth (2) of the container (1); made of synthetic resin to be attached to the mouth (2), the top wall ( 5) and a cap portion comprising a cylindrical portion (6) having a screw groove on the inner surface, and an inclined portion (7) whose lower portion formed at the lower end of the cylindrical portion (6) has a larger diameter than the protruding portion (4). A main body (9) of (8); a ring (11) integrally provided at a lower end of the inclined portion (7) via a plurality of connecting portions (10); a base end portion (12 ) In the thickness direction of the ring (11) is provided so as to reach at least the same surface as the inner peripheral surface (13), and the tip end portion (14) protrudes inward from the inner peripheral surface (13). When the cap (8) formed on the tip end portion (14) is attached to the mouth portion (2), the locking member (15) is below the protrusion (4). Ri engaging portion (16) for locking in the vertical direction; a switchgear vessel made of;
The locking member (15) is formed such that the tip end portion (14) faces the closing direction in the rotation of the cap,
Between the base end portion (12) and the locking portion (16), an arm (18) is provided so as to reach at least the same surface as the inner peripheral surface (13) in the thickness direction of the ring (11). A container opening and closing device. 係止部材（１５）は先端部（１４）がキャップの回動における開放方向を向いて形成されている請求項１、２、３、又は４記載の容器の開閉装置。  The container opening and closing device according to claim 1, wherein the locking member (15) is formed with a tip portion (14) facing an opening direction in rotation of the cap. アーム（１８）の下面又はリング（１１）の上面のいずれか一方は、アーム（１８）の下方への加圧による変形を抑制する脚部（３１）を有している請求項１、３、４、５、６又は７記載の容器の開閉装置。  Either one of the lower surface of the arm (18) or the upper surface of the ring (11) has a leg portion (31) that suppresses deformation due to downward pressure of the arm (18). The container opening and closing device according to 4, 5, 6, or 7. 容器（１）の、突部（４）の下方の外径は係止部材（１５）の係止部（１６）の内径より小さく形成されている請求項１、２、３、４、５、６、７又は８記載の容器の開閉装置。  The outer diameter of the container (1) below the protrusion (4) is smaller than the inner diameter of the locking portion (16) of the locking member (15). The container opening and closing device according to 6, 7 or 8.
JP08071297A 1997-03-31 1997-03-31 Container opening and closing device Expired - Lifetime JP3988155B2 (en)

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JP08071297A JP3988155B2 (en) 1997-03-31 1997-03-31 Container opening and closing device

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JP3988155B2 true JP3988155B2 (en) 2007-10-10

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US8900505B2 (en) * 2009-07-23 2014-12-02 Faith Viva Limited Method of making an inverted-hook groove for a plant-fiber molded cup lid

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