JP5224452B2 - Easy break opening container with protective cover - Google Patents

Easy break opening container with protective cover Download PDF

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JP5224452B2
JP5224452B2 JP2008186772A JP2008186772A JP5224452B2 JP 5224452 B2 JP5224452 B2 JP 5224452B2 JP 2008186772 A JP2008186772 A JP 2008186772A JP 2008186772 A JP2008186772 A JP 2008186772A JP 5224452 B2 JP5224452 B2 JP 5224452B2
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container
mouth
neck
opening
protective cover
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JP2010023871A (en
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保昭 中村
道一 杉町
洋一郎 井上
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Daiwa Can Co Ltd
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Daiwa Can Co Ltd
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Description

本発明は、開口部を有する容器本体と、容器本体の開口部を封鎖する封鎖体とが、両者の境界に形成される破断容易な弱化部を介して一体的に形成された、所謂ツイストオフ容器と呼ばれる破断開口容易な容器に関し、特に、弱化部をできるだけ弱化させて開封し易くしても、開封前に誤って弱化部が破断されることがなく、しかも、開封時には、弱化部を破断するためのツイストオフ操作を正確に行えるような、保護カバーを備えた破断開口容易な樹脂製の容器に関する。   The present invention is a so-called twist-off in which a container main body having an opening and a sealing body that seals the opening of the container main body are integrally formed via a weakly breakable portion formed at the boundary between the two. With regard to a container that can be easily opened with a break, called a container, in particular, even if the weakened part is weakened as much as possible to make it easy to open, the weakened part is not accidentally broken before opening, and the weakened part is broken when opened. The present invention relates to a resin-made container having a protective cover and capable of being easily opened by breaking, so that a twist-off operation can be accurately performed.

開口部を有する容器本体と、容器本体の開口部を封鎖する封鎖体とが、両者の境界に形成される破断容易な弱化部を介して一体的に形成されていて、封鎖体に形成された摘み部を摘んで捻ること(ツイストオフ操作)により容器本体の開口部を開口させる、所謂ツイストオフ容器と言われる樹脂製の容器が従来から知られている。   The container main body having the opening and the sealing body for sealing the opening of the container main body are integrally formed via the easily breakable weakened portion formed at the boundary between the two, and formed in the sealing body. 2. Description of the Related Art Conventionally, a resin container called a so-called twist-off container is known that opens an opening of a container body by picking and twisting a knob (twist-off operation).

そのようなツイストオフ容器では、容器本体から封鎖体を分離し易く(弱化部が破断され易く)するため、一般的に、容器全体がオレフィン樹脂で形成されているが、これに対して、近年、オレフィン樹脂よりも耐内容物性に優れて、内容物に対して不活性で樹脂臭のない(内容物に樹脂の臭いが移らない)ポリエステル樹脂からなる破断開口容易な容器の出現が望まれている。   In such a twist-off container, the entire container is generally formed of an olefin resin in order to easily separate the sealed body from the container main body (the weakened part is easily broken). It is desirable to have a container that is more resistant to contents than olefin resin, is inert to the contents, and has no resin odor (resin odor does not transfer to the contents) and is made of a polyester resin that is easy to open. Yes.

しかしながら、ポリエステル樹脂では、オレフィン樹脂よりも耐内容物性に優れているものの、オレフィン樹脂よりも粘りがあって、上記のような破断開口容易な容器に使用した場合には、封鎖体を捻って容器本体から封鎖体を分離する際に、弱化部が破断され難く、弱化部の破断部分で糸を引くような現象を引き起こすことがある。   However, the polyester resin is superior in content resistance than the olefin resin, but has a higher viscosity than the olefin resin, and when used in a container that is easy to break open as described above, the container is twisted with a sealed body. When separating the sealing body from the main body, the weakened portion is not easily broken, and a phenomenon may be caused in which the yarn is pulled at the broken portion of the weakened portion.

そこで、そのようなポリエステル樹脂からなる破断開口容易な容器の欠点を克服するために、弱化部を適宜手段で一層薄くしたり、弱化部付近の材質を脆く変性させたりしているが、そのように弱化部を破断させ易くし過ぎると、容器の展示中や搬送中に封鎖体が不用意に動かされた場合に、容器本体と封鎖体とが折り曲げられること(封鎖体を押し倒して弱化部を破断するスナップオフ操作と同様の作用)で、簡単に弱化部が破断されて、容器が誤って開封されてしまう虞がある。   Therefore, in order to overcome the drawbacks of such a container made of polyester resin that is easy to break open, the weakened part is made thinner by appropriate means or the material near the weakened part is brittlely modified. If the weakened part is too easy to break, the container body and the sealed body will be bent when the sealed body is inadvertently moved during display or transportation of the container. There is a possibility that the weakened part is easily broken by the same action as the snap-off operation for breaking, and the container is accidentally opened.

これに対して、容器本体と封鎖体とが破断容易な弱化部を介して一体的に形成されたポリエステル樹脂製の容器において、弱化部をできるだけ弱化させて開封し易くしても、開封前に誤って弱化部が破断されることがないようにするために、封鎖体や弱化部を非接触状態で覆うようなキャップを容器本体に着脱自在に冠着する、ということが本出願人の出願による下記の特許文献によって従来公知となっている。
特開2008−137705号公報
On the other hand, in the container made of polyester resin in which the container body and the sealing body are integrally formed through the weakened part that is easily broken, even if the weakened part is weakened as much as possible and easy to open, In order to prevent the weakened part from being accidentally broken, the applicant's application is to attach a cap that covers the sealing body and the weakened part in a non-contact state to the container body in a detachable manner. Is known in the prior art from the following patent document.
JP 2008-137705 A

ところで、上記のような従来公知のキャップを備えた破断開口容易な容器では、弱化部をできるだけ弱化させて開封し易くしても、開封前に誤って弱化部が破断されることがないという点では効果的であるが、その一方、キャップを装着するための螺合手段や係合手段を容器本体に設けることが必要となり、また、容器を開封しようとする際には、先ずキャップを取り外すという操作が必要となる。   By the way, in a container having a conventionally known cap as described above, which is easy to break open, even if the weakened portion is weakened as much as possible to facilitate opening, the weakened portion is not accidentally broken before opening. On the other hand, it is necessary to provide the container body with screwing means and engaging means for mounting the cap, and when opening the container, the cap is first removed. Operation is required.

また、弱化部の破断により開口される開口部は、一般的に上方から見て円形に開口されるものであるが、キャップを取り外してから容器を開封しようとする際に、封鎖体を押し倒して弱化部を破断するスナップオフ操作によって開封すると、円形(環状)に破断される弱化部での円周方向での破断状態に不均一が出ることで、開口部の縁となる部分がきれいな状態に破断されない虞がある。   In addition, the opening that is opened by the breakage of the weakened portion is generally opened in a circular shape when viewed from above, but when the container is opened after the cap is removed, the sealed body is pushed down. Opening with a snap-off operation that breaks the weakened part causes unevenness in the broken state in the circumferential direction at the weakened part that is broken into a circular shape (annular), so that the part that becomes the edge of the opening becomes clean There is a risk that it will not break.

そこで、封鎖体を捻って弱化部を破断するツイストオフ操作によって開封しようとする場合に、ツイストオフ操作により封鎖体に与えられる回動力が、容器の中心軸から回転軸がずれた状態で不正確に与えられた場合には、やはり円形(環状)に破断される弱化部での円周方向での破断状態に不均一が出ることとなって、開口部の縁となる部分がきれいな状態に破断されない虞がある。   Therefore, when opening by twist-off operation that twists the sealing body and breaks the weakened portion, the rotational force applied to the sealing body by the twist-off operation is inaccurate with the rotational axis deviating from the central axis of the container. If it is given, the unevenness in the circumferential direction of the weakened part that is also broken into a circle (annular) will be uneven, and the edge part of the opening will be broken in a clean state. There is a risk that it will not be.

本発明は、上記のような問題の解消を課題とするものであり、具体的には、容器本体と封鎖体とが弱化部を介して一体的に形成された破断開口容易な容器について、キャップのための螺合手段や係合手段を容器本体に設けることなく、弱化部をできるだけ弱化させて開封し易くしても、開封前に誤って弱化部が破断されることがなく、しかも、開封時には、弱化部を破断するためのツイストオフ操作を正確に行うことができて、開口部をきれいに開口させられるようにすることを課題とするものである。   An object of the present invention is to solve the above-described problems. Specifically, a container having a container body and a sealing body that are integrally formed through a weakened portion and that is easy to break open is provided with a cap. Even if the weakened portion is weakened as much as possible and easy to open without providing screwing means or engaging means for the container, the weakened portion will not be accidentally broken before opening, and Sometimes, it is an object to be able to accurately perform a twist-off operation for breaking the weakened portion so that the opening can be opened cleanly.

本発明は、上記のような課題を解決するために、口頸部の先端に開口部が形成された容器本体と、手で摘むための摘み部を備えて容器本体の開口部を封鎖する封鎖体とが、両者の境界に形成される破断容易な弱化部を介して一体的に形成された破断開口容易な容器に対して、容器本体の口頸部に摺接する摺接部と封鎖体の摘み部に当接する当接部とを一体的に形成した保護カバーが、その当接部を封鎖体の摘み部に当接させた状態で、その摺接部に容器本体の口頸部を嵌合させて、口頸部の外周面の周方向に沿って回動可能なように取り付けられているものであって、
保護カバーには、口頸部の外周面に沿った下筒部と、口頸部よりも小径の上筒部とが一体的に形成されており、この保護カバーの一側部で部分的に下筒部と上筒部とにわたって縦方向に切り欠き部分が形成され、この切り欠き部分と対向する上筒部の部分に切り欠き部分が形成されていて、下筒部の切り欠き部分を押し開いて容器本体の口頸部を下筒部に嵌合させることで、下筒部の内面が容器本体の口頸部に摺接する摺接部となり、上筒部の各切り欠き部分に封鎖体の摘み部を貫通させることで、上筒部の各切り欠き部分の縁部が封鎖体の摘み部に当接する当接部となっていることを特徴とするものである。
In order to solve the above-described problems, the present invention provides a container body having an opening formed at the tip of the mouth-and-neck portion and a knob for hand-picking to seal the opening of the container body. Between the slidable contact portion and the sealing body that are in sliding contact with the mouth-neck portion of the container body with respect to the easily ruptured opening container integrally formed through the weakly fragile portion formed at the boundary between the two. The protective cover that is integrally formed with the abutting part that abuts the part fits the mouth-and-neck part of the container body into the sliding contact part in a state where the abutting part is in contact with the knob of the sealing body Let it be attached so as to be rotatable along the circumferential direction of the outer peripheral surface of the mouth and neck ,
The protective cover is integrally formed with a lower cylindrical portion along the outer peripheral surface of the mouth and neck portion and an upper cylindrical portion having a smaller diameter than the mouth and neck portion. A notch is formed in the vertical direction across the lower cylinder and the upper cylinder, and a notch is formed in the upper cylinder facing the notch, and the notch of the lower cylinder is pushed. By opening and fitting the mouth / neck part of the container body to the lower cylinder part, the inner surface of the lower cylinder part becomes a sliding contact part that makes sliding contact with the mouth / neck part of the container body, and a sealing body is formed at each notch portion of the upper cylinder part. By passing through the knob part, the edge part of each notched part of the upper cylinder part is a contact part that contacts the knob part of the blockade .

上記のような本発明の保護カバーを備えた破断開口容易な容器によれば、容器に保護カバーが取り付けられた状態で、一体的に形成された保護カバーの摺接部に容器本体の口頸部が嵌合され、且つ、当接部が封鎖体の摘み部に当接していることから、保護カバーの剛性によって容器本体と封鎖体とが折り曲げられることはない。そのため、容器の弱化部をできるだけ弱化させて、容器を開封し易くしても、容器を開封する前には、不用意に容器本体と封鎖体とが折り曲げられて弱化部が破断されるようなことはなく、容器が誤って開封されるのを保護カバーによって確実に防止することができる。   According to the container having the protective cover of the present invention and having the protective cover as described above, the mouth and neck of the container main body is attached to the sliding contact portion of the protective cover that is integrally formed with the protective cover attached to the container. Since the parts are fitted and the contact part is in contact with the knob of the sealing body, the container body and the sealing body are not bent by the rigidity of the protective cover. Therefore, even if the weakened portion of the container is weakened as much as possible and the container is easily opened, the weakened portion is broken unexpectedly by bending the container body and the sealing body before opening the container. The protective cover can reliably prevent the container from being accidentally opened.

また、容器の開封時には、容器に保護カバーを取り付けたままでも、ツイストオフ操作として封鎖体の摘み部を捻ると、保護カバーの摺接部を容器本体の口頸部の外周面に摺接させた状態で、保護カバーと共に封鎖体の摘み部を容器本体に対して回動させることができ、ツイストオフ操作によって弱化部を破断することができる。   Also, when opening the container, even if the protective cover is attached to the container, twisting the knob of the sealed body as a twist-off operation will cause the sliding part of the protective cover to slidably contact the outer peripheral surface of the neck of the container body. In this state, the gripping portion of the sealing body can be rotated with respect to the container body together with the protective cover, and the weakened portion can be broken by a twist-off operation.

しかも、そのようなツイストオフ操作によれば、保護カバーが口頸部の外周面の周方向に沿って回動するのと連動することで、封鎖体の捻りが正確に容器の中心軸を回転軸とする回動となるため、弱化部を円周方向での均一な力によりむらなく破断することができて、開口部の縁となる部分をきれいな状態に破断することができる。なお、容器に保護カバーを取り付けたままでは、封鎖体を押し倒すようなスナップオフ操作によって弱化部を破断(円周方向での不均一な力による破断)することはできない。   Moreover, according to such a twist-off operation, the twist of the sealing body accurately rotates the central axis of the container by interlocking with the rotation of the protective cover along the circumferential direction of the outer peripheral surface of the mouth and neck. Since the shaft is turned, the weakened portion can be broken evenly by the uniform force in the circumferential direction, and the portion that becomes the edge of the opening can be broken cleanly. Note that, with the protective cover attached to the container, the weakened portion cannot be broken (broken by a non-uniform force in the circumferential direction) by a snap-off operation that pushes down the sealing body.

容器本体と封鎖体とが弱化部を介して一体的に形成された破断開口容易な容器について、キャップのための螺合手段や係合手段を容器本体に設けることなく、弱化部をできるだけ弱化させて開封し易くしても、開封前に誤って弱化部が破断されることがなく、しかも、開封時には、弱化部を破断するためのツイストオフ操作を正確に行うことができて、開口部をきれいに開口させられるようにするという目的を、最良の形態として以下の各実施例に具体的に示すように、口頸部の先端に開口部が形成された容器本体と、手で摘むための摘み部を備えて容器本体の開口部を封鎖する封鎖体とが、両者の境界に形成される破断容易な弱化部を介して一体的に形成された破断開口容易な容器に対して、容器本体の口頸部に摺接する摺接部と封鎖体の摘み部に当接する当接部とを一体的に形成した保護カバーを、その当接部を封鎖体の摘み部に当接させた状態で、その摺接部に容器本体の口頸部を嵌合させて、口頸部の外周面の周方向に沿って回動可能なように取り付けるものであって、保護カバーには、口頸部の外周面に沿った下筒部と、口頸部よりも小径の上筒部とを一体的に形成して、この保護カバーの一側部で部分的に下筒部と上筒部とにわたって縦方向に切り欠き部分を形成し、この切り欠き部分と対向する上筒部の部分に切り欠き部分を形成して、下筒部の切り欠き部分を押し開いて容器本体の口頸部を下筒部に嵌合させることで、下筒部の内面を容器本体の口頸部に摺接する摺接部とし、上筒部の各切り欠き部分に封鎖体の摘み部を貫通させることで、上筒部の各切り欠き部分の縁部を封鎖体の摘み部に当接する当接部とする、ということで実現した。 For a container having a container body and a sealing body that are formed integrally through a weakened portion and easily opened by breakage, the weakened portion is weakened as much as possible without providing a screwing means or engaging means for a cap in the container main body. Even if it is easy to open, the weakened part is not broken by mistake before opening, and at the time of opening, the twist-off operation for breaking the weakened part can be performed accurately, and the opening part can be opened. As shown in the following embodiments as the best mode, the container body having an opening formed at the tip of the mouth and neck and a knob for picking by hand And a sealing body that seals the opening of the container body with respect to the container that is easily opened through a weakly breakable part formed at the boundary between the two. Of the sliding contact part and the sealing body With the protective cover integrally formed with the abutment portion that abuts the ridge, the mouth and neck of the container body is fitted into the sliding contact portion with the abutment portion abutting against the knob of the sealing body. It is attached so that it can rotate along the peripheral direction of the outer peripheral surface of the mouth and neck, and the protective cover includes a lower tube portion along the outer peripheral surface of the mouth and neck, and a mouth and neck portion. An upper cylindrical portion having a smaller diameter than the upper cylindrical portion is integrally formed, and a cutout portion is formed in the longitudinal direction partially across the lower cylindrical portion and the upper cylindrical portion at one side portion of the protective cover. The inner surface of the lower cylinder part is formed by forming a notch part in the part of the upper cylinder part opposite to the upper part and pushing the notch part of the lower cylinder part to fit the mouth neck of the container body into the lower cylinder part. Slidably contact the mouth and neck of the container body, and each notch portion of the upper cylinder portion by penetrating the knob part of the sealing body through each notch portion of the upper cylinder portion The abutment portion abutting the edges knob blockade of was achieved at that.

本発明の実施例である保護カバーを備えた破断開口容易な容器において、保護カバーを除いた容器(容器本体と封鎖体と弱化部とが一体成形された容器)の部分は、ポリエステル樹脂(ポリエステル樹脂の単独、又は、ポリエステル樹脂を主体とする積層体)を素材として、ブロー成形法、シート成形法、圧空(真空)成形法、射出成形法等のような従来から知られた適宜の成形方法により一体成形されるものであり、一方、保護カバーの部分は、オレフィン樹脂等の適宜の樹脂を素材として、射出成形法のような従来から知られた適宜の成形方法により一体成形されるものである。 In a container having a protective cover that is an embodiment of the present invention and having an easy break opening, the portion of the container excluding the protective cover (the container in which the container main body, the sealing body, and the weakened portion are integrally formed) is a polyester resin (polyester). Conventionally known appropriate molding methods such as a blow molding method, a sheet molding method, a compressed air (vacuum) molding method, an injection molding method, etc. using a resin alone or a laminate mainly composed of a polyester resin) On the other hand, the protective cover part is made of an appropriate resin such as an olefin resin as a raw material and is integrally formed by an appropriate molding method known in the art such as an injection molding method. is there.

容器本体と封鎖体と弱化部とが一体成形された容器については、図1および図2に示すように、容器本体2では、横断面形状が略長方形で上部の厚み(長方形の短径方向の長さ)が大きくなった胴部22に対して、その上端から上方に肩部23を介して円錐台形の口頸部24が形成されており、口頸部24の先端では、口頸部24を閉鎖する天板部25の中央に開口部(弱化部4で囲まれた部分)が形成されている。   As shown in FIGS. 1 and 2, the container body 2 has a substantially rectangular cross-sectional shape and an upper thickness (in the short axis direction of the rectangle). A frustoconical mouth-and-neck part 24 is formed from the upper end of the body part 22 having a larger length) via a shoulder part 23 above the upper end thereof. An opening (a portion surrounded by the weakening portion 4) is formed at the center of the top plate portion 25 that closes the bottom.

また、胴部22の下端(底部)から一体的に連続するように、胴部22を掴むことなく容器を保持できるような平板状の容器保持部21が形成されており、この容器保持部21を掴むことによって、容器の開封後に、胴部22を掴んで容器内に外圧をかけることで開口部から不用意に内容物が排出されるのを防止することができる。   In addition, a flat container holding portion 21 is formed so as to be able to hold the container without grasping the barrel portion 22 so as to be integrated continuously from the lower end (bottom portion) of the barrel portion 22. By grasping, the contents can be prevented from being inadvertently discharged from the opening by grasping the barrel 22 and applying external pressure into the container after the container is opened.

封鎖体3では、細長いコーン状で中空の蓋部31と、容器の開封操作をする際に手で摘む部分となる平板状の摘み部32とが、平板状の摘み部32がコーン状の蓋部31を上から跨ぐように一体的に形成されている。そして、蓋部31によって口頸部24の先端(天板部25)に開口される開口部を塞ぐように、封鎖体3の蓋部31の下端と、容器本体2の口頸部24の先端(天板部25の内縁)とは、容器本体2と封鎖体3との境界として、破断容易な弱化部4を介して一体的に形成されている。   In the sealed body 3, an elongated cone-shaped and hollow lid portion 31, a plate-shaped knob portion 32 that is a portion to be manually picked when the container is opened, and the plate-shaped knob portion 32 is a cone-shaped lid. It is integrally formed so as to straddle the portion 31 from above. And the lower end of the cover part 31 of the sealing body 3 and the front-end | tip of the mouth neck part 24 of the container main body 2 so that the opening part opened to the front-end | tip (top plate part 25) of the mouth neck part 24 by the cover part 31 may be plugged up. (The inner edge of the top plate portion 25) is integrally formed as a boundary between the container body 2 and the sealing body 3 via the weakened portion 4 that is easily broken.

容器本体2と封鎖体3との境界に形成された弱化部4は、上方から見て円形(環状)に形成されているもので、この弱化部4は、口頸部24の天板部25が中央部分で円形(環状)に僅かに窪まされることで部分的に薄肉化されてから、炭酸ガスレーザー等によるレーザーが照射されることで、更に薄肉化されると共に、脆くなって破断され易いように材質が変性されているものである。   The weakened portion 4 formed at the boundary between the container body 2 and the sealed body 3 is formed in a circular shape (annular shape) when viewed from above, and the weakened portion 4 is a top plate portion 25 of the mouth and neck portion 24. Is thinned by being slightly recessed in a circular (annular) shape at the center, and then irradiated with a laser such as a carbon dioxide laser to further reduce the thickness and become brittle and fractured. The material is modified so that it is easy.

上記のような構造を備えた破断開口容易な容器は、ポリエステル樹脂(ポリエステル樹脂の単独、又は、ポリエステル樹脂を主体とする積層体)のシートを素材として、シート成形法により、一対のシートをガラス転移点以上に予備加熱してから、この一対のシートを一対の金型にそれぞれ吸い付けて、この一対の金型を合掌させることにより成形されるものである。   A container having a structure as described above, which is easy to break open, uses a sheet of polyester resin (a polyester resin alone or a laminate mainly composed of polyester resin) as a raw material, and a pair of sheets is made of glass by a sheet molding method. After preheating above the transition point, the pair of sheets are sucked into a pair of molds, and the pair of molds are formed into a palm.

具体的には、先ず、容器保持部21と中間成形の胴部(胴部22を含む)を成形して、その胴部(のうちで胴部22となる部分)の内部に内容液を充填してから、中間成形の胴部の上部を肩部23と口頸部24と封鎖体3を成形しているが、その際に、封鎖体3を挟んだ金型を口頸部24の先端(天板部25)に僅かに食い込ませることで、弱化部4となる部分に僅かな窪みを形成してその部分の板厚を僅かに薄くさせている。   Specifically, first, the container holding part 21 and the intermediate molded body part (including the body part 22) are formed, and the content liquid is filled into the inside of the body part (part of which becomes the body part 22). Then, the upper part of the body part of the intermediate molding is formed with the shoulder part 23, the mouth and neck part 24, and the sealing body 3. At this time, the mold sandwiching the sealing body 3 is used as the tip of the mouth and neck part 24. By slightly biting into the (top plate portion 25), a slight depression is formed in the portion that becomes the weakened portion 4, and the thickness of the portion is slightly reduced.

そして、上記のように成形された容器に対して、口頸部24の先端として形成された天板部25で、封鎖体3の蓋部31の付け根の部分(金型を食い込ませることで板厚を僅かに薄くされた部分)に向けて炭酸ガスレーザー等によるレーザー照射を施すことにより、更に薄肉化されると共に材質が脆く変性された弱化部4を形成している。   And with the top plate part 25 formed as the front-end | tip of the mouth-and-neck part 24 with respect to the container shape | molded as mentioned above, the base part of the cover part 31 of the sealing body 3 (a plate is made to bite a metal mold | die). By applying laser irradiation with a carbon dioxide laser or the like toward the portion where the thickness is slightly reduced, the weakened portion 4 is further thinned and the material is brittle and modified.

なお、弱化部4を部分的に薄肉化するための成形方法については、上記のような成形加工中に金型の先端を食い込ませるような方法に限らず、全てをレーザー照射によって薄肉にする方法や、刃物による切削加工を施すことで薄肉にする方法などの適宜の方法が適用できる。   The molding method for partially thinning the weakened portion 4 is not limited to the method of biting the tip of the mold during the molding process as described above, and a method for thinning all by laser irradiation. In addition, an appropriate method such as a method of reducing the thickness by cutting with a blade can be applied.

さて、本発明の保護カバーを備えた破断開口容易な容器では、上記のような破断開口容易な容器1に対して、図5および図6に示すように、口頸部24の外周面に摺接する摺接部と封鎖体3の摘み部32に当接する当接部とを一体的に形成した保護カバー5が、その当接部を封鎖体3の摘み部32に当接させた状態で、その摺接部に容器本体2の口頸部24が嵌合されて、口頸部24の外周面の周方向に沿って回動可能なように取り付けられている。   Now, in the easily breakable opening container provided with the protective cover of the present invention, it slides on the outer peripheral surface of the mouth and neck portion 24 as shown in FIGS. In a state where the protective cover 5 integrally formed with the slidable contact portion and the abutting portion that abuts the knob 32 of the sealing body 3 is in contact with the knob 32 of the sealing body 3, The mouth and neck portion 24 of the container body 2 is fitted to the sliding contact portion, and is attached so as to be rotatable along the circumferential direction of the outer peripheral surface of the mouth and neck portion 24.

本実施例では、図3に示すように、保護カバー5には、容器本体2の口頸部24の外周面に沿った傾斜面の上端が環状の段部となっている円錐台形状の下筒部51と、小径で高さのある傾斜面の上端が天板部となっている円錐台形状の上筒部52とが一体的に形成されており、この保護カバー5の一側方で部分的に下筒部51と上筒部52とにわたって縦方向に切り欠き部分53が形成され、この切り欠き部分53と対向する上筒部52の部分に切り欠き部分54が形成されている。   In this embodiment, as shown in FIG. 3, the protective cover 5 has a truncated cone shape in which the upper end of the inclined surface along the outer peripheral surface of the mouth / neck portion 24 of the container body 2 is an annular stepped portion. A cylindrical portion 51 and a truncated cone-shaped upper cylindrical portion 52 whose upper end of an inclined surface having a small diameter and a height is a top plate portion are integrally formed, and at one side of the protective cover 5 A cutout portion 53 is partially formed in the vertical direction across the lower tube portion 51 and the upper tube portion 52, and a cutout portion 54 is formed in a portion of the upper tube portion 52 that faces the cutout portion 53.

この保護カバー5は、図4(A)、(B)に示すように、切り欠き部分53を容器1に向けた状態で側方から容器1に取り付けられるものであって、切り欠き部分53を押し開いて保護カバー5の下筒部51に容器本体2の口頸部24を押し入れることにより、図5および図6(A)、(B)に示すように、保護カバー5の下筒部51に容器本体2の口頸部24が嵌合されることで、下筒部51の内面が、容器本体2の口頸部24に摺接する摺接部となり、また、保護カバー5の上筒部52のそれぞれの切り欠き部分53、54に封鎖体3の摘み部32が貫通されることで、上筒部52の各切り欠き部分53、54の縁部が、封鎖体3の摘み部32に当接する当接部となっている。   As shown in FIGS. 4A and 4B, the protective cover 5 is attached to the container 1 from the side with the notch 53 facing the container 1, and the notch 53 is By pushing and opening the mouth-neck part 24 of the container body 2 into the lower cylinder part 51 of the protective cover 5, as shown in FIGS. 5 and 6A and 6B, the lower cylinder part of the protective cover 5 When the mouth / neck part 24 of the container body 2 is fitted to 51, the inner surface of the lower cylinder part 51 becomes a sliding contact part that makes sliding contact with the mouth / neck part 24 of the container body 2, and the upper cylinder of the protective cover 5. The notch portions 32 and 54 of the block 52 are penetrated by the notch portions 32 and 54 of the block 52 so that the edges of the cut portions 53 and 54 of the upper cylinder portion 52 become the knob 32 of the block 3. It is the contact part which contacts.

上記のような本実施例の保護カバー5によれば、容器1に保護カバー5が取り付けられた状態で、保護カバー5の下筒部51に容器本体2の口頸部24が嵌合され、且つ、上筒部52が各切り欠き部分53、54の縁部で封鎖体3の摘み部32に当接していることから、保護カバー5の剛性によって容器本体2と封鎖体3とが折り曲げられることはなく、そのため、容器1の弱化部4をできるだけ弱化させて開封し易くしても、開封前に不用意に容器本体2と封鎖体3とが折り曲げられて弱化部4が破断されるようなことはなく、容器が誤って開封されるのを保護カバー5によって確実に防止することができる。   According to the protective cover 5 of the present embodiment as described above, with the protective cover 5 attached to the container 1, the mouth and neck portion 24 of the container body 2 is fitted to the lower cylindrical portion 51 of the protective cover 5, And since the upper cylinder part 52 is contact | abutting to the knob | pick part 32 of the sealing body 3 in the edge part of each notch part 53 and 54, the container main body 2 and the sealing body 3 are bent by the rigidity of the protective cover 5. FIG. Therefore, even if the weakened portion 4 of the container 1 is weakened as much as possible and easy to open, the container main body 2 and the sealing body 3 are inadvertently bent before opening so that the weakened portion 4 is broken. The protective cover 5 can reliably prevent the container from being opened accidentally.

また、容器の開封時には、容器1に保護カバー5を取り付けたままでも、ツイストオフ操作として封鎖体3の摘み部32を捻ると、保護カバー5の下筒部51を容器本体2の口頸部24の外周面に摺接させた状態で、保護カバー5と共に封鎖体3の摘み部32を容器本体2に対して回動させることができて、ツイストオフ操作により弱化部4を破断することができる。   Further, when the container is opened, even if the protective cover 5 is attached to the container 1, if the knob 32 of the sealing body 3 is twisted as a twist-off operation, the lower cylindrical portion 51 of the protective cover 5 is moved to the mouth and neck of the container main body 2. 24, the knob 32 of the sealing body 3 can be rotated with respect to the container body 2 together with the protective cover 5 while being in sliding contact with the outer peripheral surface of the cover 24, and the weakened portion 4 can be broken by a twist-off operation. it can.

しかも、そのようなツイストオフ操作によれば、保護カバー5が口頸部24の外周面の周方向に沿って回動するのと連動することで、封鎖体3の捻りが正確に容器1の中心軸を回転軸とする回動となるため、弱化部4を円周方向での均一な力によりむらなく破断することができて、開口部の縁となる部分をきれいな状態に破断することができる。なお、容器1に保護カバー5を取り付けたままでは、封鎖体3を押し倒すようなスナップオフ操作によって弱化部4を破断(円周方向での不均一な力による破断)することはできない。   Moreover, according to such a twist-off operation, the protective cover 5 is interlocked with the rotation along the circumferential direction of the outer peripheral surface of the mouth-and-neck portion 24, so that the twist of the sealing body 3 is accurately adjusted. Since the rotation is performed with the central axis as the rotation axis, the weakened portion 4 can be broken evenly by the uniform force in the circumferential direction, and the portion that becomes the edge of the opening can be broken cleanly. it can. If the protective cover 5 is still attached to the container 1, the weakened portion 4 cannot be broken (broken by an uneven force in the circumferential direction) by a snap-off operation that pushes down the sealing body 3.

以上、本発明の保護カバーを備えた破断開口容易な容器の各実施例について説明したが、本発明は、上記の各実施例に示した具体的な構造にのみ限定されるものではなく、例えば、容器本体や封鎖体の具体的な構造については、必ずしも上記の各実施例に示した構造に限定されるものではない等、適宜に設計変更可能なものであることはいうまでもない。   As mentioned above, although each example of the container with a protective cover according to the present invention that is easy to break open has been described, the present invention is not limited to the specific structure shown in each of the above examples. Needless to say, the specific structure of the container body and the sealed body is not necessarily limited to the structure shown in each of the above embodiments, and the design can be changed as appropriate.

本発明の実施例について、保護カバーを取り付ける前の破断開口容易な容器を示す正面図。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 図1に示した容器の側面図。The side view of the container shown in FIG. 図1に示した容器に取り付ける保護カバーを示す斜視図。The perspective view which shows the protective cover attached to the container shown in FIG. 図3に示した保護カバーを図1に示した容器に取り付ける際の、(A)取り付け前の状態と、(B)取り付け後の状態とをそれぞれ示す上面図。FIG. 4 is a top view showing (A) a state before attachment and (B) a state after attachment when the protective cover shown in FIG. 3 is attached to the container shown in FIG. 1. 図3に示した保護カバーを図1に示した容器に取り付けた状態を示す正面図。The front view which shows the state which attached the protective cover shown in FIG. 3 to the container shown in FIG. 図5に示した保護カバー付き容器の(A)右側面図と、(B)左側面図。The (A) right side view and (B) left side view of the container with a protective cover shown in FIG.

1 破断開口容易な容器
2 容器本体
3 封鎖体
4 弱化部
5 保護カバー
51 (保護カバーの摺接部となる)下筒部
52 (保護カバーの当接部となる)上筒部
53 切り欠き部分
54 切り欠き部分
DESCRIPTION OF SYMBOLS 1 Container where break opening is easy 2 Container body 3 Sealing body 4 Weakened part 5 Protective cover 51 Lower cylinder part (being a sliding contact part of the protective cover) 52 Upper cylinder part 53 (being a contact part of the protective cover) Notch part 54 Notch

Claims (2)

口頸部の先端に開口部が形成された容器本体と、手で摘むための摘み部を備えて容器本体の開口部を封鎖する封鎖体とが、両者の境界に形成される破断容易な弱化部を介して一体的に形成された破断開口容易な容器に対して、容器本体の口頸部に摺接する摺接部と封鎖体の摘み部に当接する当接部とを一体的に形成した保護カバーが、その当接部を封鎖体の摘み部に当接させた状態で、その摺接部に容器本体の口頸部を嵌合させて、口頸部の外周面の周方向に沿って回動可能なように取り付けられているものであって、
保護カバーには、口頸部の外周面に沿った下筒部と、口頸部よりも小径の上筒部とが一体的に形成されており、この保護カバーの一側部で部分的に下筒部と上筒部とにわたって縦方向に切り欠き部分が形成され、この切り欠き部分と対向する上筒部の部分に切り欠き部分が形成されていて、下筒部の切り欠き部分を押し開いて容器本体の口頸部を下筒部に嵌合させることで、下筒部の内面が容器本体の口頸部に摺接する摺接部となり、上筒部の各切り欠き部分に封鎖体の摘み部を貫通させることで、上筒部の各切り欠き部分の縁部が封鎖体の摘み部に当接する当接部となっていることを特徴とする保護カバーを備えた破断開口容易な容器。
An easily breakable weakened portion formed at the boundary between a container main body having an opening formed at the tip of the mouth and neck and a sealing body that includes a knob for hand picking and seals the opening of the container main body Protection for a container that is easy to break open and formed integrally through a slidable contact part that slidably contacts the mouth-neck part of the container body and a contact part that contacts the knob part of the sealing body In the state where the cover is in contact with the knob of the blockade, the cover is fitted with the mouth-neck portion of the container body in the sliding contact portion, along the circumferential direction of the outer peripheral surface of the mouth-neck portion. It is attached so that it can rotate ,
The protective cover is integrally formed with a lower cylindrical portion along the outer peripheral surface of the mouth and neck portion and an upper cylindrical portion having a smaller diameter than the mouth and neck portion. A notch is formed in the vertical direction across the lower cylinder and the upper cylinder, and a notch is formed in the upper cylinder facing the notch, and the notch of the lower cylinder is pushed. By opening and fitting the mouth / neck part of the container body to the lower cylinder part, the inner surface of the lower cylinder part becomes a sliding contact part that makes sliding contact with the mouth / neck part of the container body, and a sealing body is formed at each notch portion of the upper cylinder part. By opening the knob part, the edge part of each notch part of the upper tube part is an abutting part that comes into contact with the knob part of the sealing body. container.
容器本体の胴部の下端から一体的に連続するように、容器本体の胴部を掴むことなく容器を保持できるような保持部が形成されていることを特徴とする請求項に記載の保護カバーを備えた破断開口容易な容器。 The protection part according to claim 1 , wherein a holding part is formed so as to be able to hold the container without grasping the body part of the container main body so as to be continuously integrated from the lower end of the body part of the container main body. A container with a cover for easy opening.
JP2008186772A 2008-07-18 2008-07-18 Easy break opening container with protective cover Expired - Fee Related JP5224452B2 (en)

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