JP2009292528A - Overcap for paper-made can container - Google Patents

Overcap for paper-made can container Download PDF

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JP2009292528A
JP2009292528A JP2008150353A JP2008150353A JP2009292528A JP 2009292528 A JP2009292528 A JP 2009292528A JP 2008150353 A JP2008150353 A JP 2008150353A JP 2008150353 A JP2008150353 A JP 2008150353A JP 2009292528 A JP2009292528 A JP 2009292528A
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paper
container
overcap
peripheral surface
cylindrical side
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JP5195050B2 (en
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Hideo Fukushima
英夫 福島
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Toppan Inc
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Toppan Printing Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an overcap for a paper-made can container which can be locked so as to cover a top portion of the paper-made can container, and fitted and fixed thereto, hardly detached, and attachable/detachable. <P>SOLUTION: The paper-made can container A includes a bottom part D equipped with a bottom plate part 15 where an adhesive part 15a of the bottom plate part 15 is heat-sealed and fitted to an inner peripheral surface of a lower end of a cylindrical barrel portion 10 and an inner surface of its fold-back part 1a, and a top part T equipped with a top plate part 16 where an adhesive part 16a of the top plate part 16 is heat-sealed and fitted to an inner peripheral surface of an upper end of the cylindrical barrel portion 10 and an inner surface of its fold-back part 1b. An overcap includes a cylindrical side part 21 to be fitted to an outer peripheral surface of the top part T of the container, and a top plate part 22 provided on an upper part of the cylindrical side part 21. A projection part 23 which is brought into press-contact with an outer peripheral surface of the top part T and continuously or intermittently projecting in a ring shape along the outer peripheral surface of the top part T, and a ring-shaped flat part 24 parallel along an upper end edge of the top part T are provided on the inner peripheral surface of the cylindrical side part 21. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、液体包装用の筒状の紙製缶容器のオーバーキャップに関し、特に容器のトップ部の天板部に孔設された飲口部に、引っ張り剥離可能にピールオフフィルムを貼着して密封充填された紙製缶容器用オーバーキャツプに関する。   The present invention relates to an overcap for a cylindrical paper can container for liquid packaging, and in particular, a peel-off film is attached to the mouthpiece provided in the top plate portion of the top portion of the container so as to be peeled off. The present invention relates to an overcap for a sealed paper can container.

一般に飲料等の液体が充填される液体包装用の円筒状又は角筒状の紙製缶容器は、紙を基材とし、容器の内層及び外層をヒートシール性及び耐水性に優れたポリオレフィン系樹脂層とする容器成形用原紙を材料として成形、製缶される。   In general, cylindrical or rectangular tube-shaped paper can containers for liquid packaging filled with liquids such as beverages are made of paper, and the inner and outer layers of the container are polyolefin resins excellent in heat sealability and water resistance. The container forming base paper used as a layer is formed and canned.

このような紙製缶容器は、例えば、図７（ａ）に示すように、容器の筒状胴部となる下端部（ボトム側部）と上端部（トップ側部）とに折り返し部１ａ、１ｂを連設した胴部原紙１を丸めて、その左右両端部１１、１２を、図７（ｂ）に示すようにサイド貼り合わせ部１３にて重ね合わ、ヒートシールにて貼り合わせ、円筒又は角筒状に成形して上端及び下端にそれぞれ開口部１４を備えた筒状胴部１０を形成する。   Such a paper can container is, for example, as shown in FIG. 7 (a), a folded portion 1a at a lower end portion (bottom side portion) and an upper end portion (top side portion) serving as a cylindrical body portion of the container. 1b is rolled up, and the left and right end portions 11 and 12 are overlapped at the side bonding portion 13 as shown in FIG. A cylindrical body 10 having an opening 14 at each of the upper end and the lower end is formed by forming into a cylindrical shape.

続いて、図７（ｃ）に示すように、リッド（天板部及び底板部）成形工程にて、胴部１０下部の開口部１４から、底板貼着部１５ａを立設して連設した底板部となる底板原紙１５を、その開口部１４内周面に底板貼着部１５ａ外周面を密接させて、該貼着部１５ａの立設高さの２倍の深さまで装填する。なお、天板部１６には飲口部１６ｂが孔設されている。   Subsequently, as shown in FIG. 7 (c), in the lid (top plate portion and bottom plate portion) forming step, the bottom plate attaching portion 15a is erected and continuously provided from the opening 14 at the lower portion of the trunk portion 10. A bottom plate base paper 15 serving as a bottom plate portion is loaded to a depth that is twice the standing height of the sticking portion 15a with the outer peripheral surface of the bottom plate sticking portion 15a being in close contact with the inner peripheral surface of the opening 14 thereof. The top plate 16 is provided with a mouthpiece 16b.

一方、胴部１０上部の開口部１４から、天板貼着部１６ａを立設して連設した天板部となる天板原紙１６を、胴部１０上部の開口部１４から、その開口部１４内周面に天板貼着部１６ａ外周面を密接させて、該貼着部１６ａの立設高さの２倍の深さまで装填する。図７（ｄ）は、その天板原紙１５又は１６の貼着部１５ａ又は１６ａを、胴部１０上部の開口部１４から該貼着部１５ａ又は１６ａの立設高さの２倍程度の深さまで装填した状態を示す部分側断面図である。   On the other hand, from the opening 14 at the top of the body 10, the top board base paper 16, which is a top plate provided by standing the top plate attaching portion 16 a, is connected from the opening 14 at the top of the body 10. 14 The outer peripheral surface of the top plate adhering portion 16a is brought into close contact with the inner peripheral surface, and loaded to a depth twice as high as the standing height of the adhering portion 16a. FIG. 7 (d) shows that the sticking portion 15a or 16a of the base paper 15 or 16 is about twice as deep as the standing height of the sticking portion 15a or 16a from the opening 14 at the top of the trunk portion 10. It is a fragmentary sectional side view which shows the state loaded so far.

続いて、図７（ｄ）〜（ｅ）に示すように、胴部１０下部と上部のそれぞれ開口部１４にある胴部原紙１の下端（ボトム側）（及び上端（トップ側））のそれぞれ折り返し部１ａ、１ｂを、胴部１０の筒内方に折り返し、その折り返された原紙１の折り返し部１ａ、１ｂの内周面を、それぞれ底板貼着部１５ａと天板貼着部１６ａの内周面に重ね合わせ、胴部１０下端（ボトム側）及び上端（トップ側）の内周面と折り返された原紙１の折り返し部１ａ、１ｂ内周面とにて、底板貼着部１５ａと天板貼着部１６ａのそれぞれ両面をかしめ、ヒートシールにて貼り合わせることにより、筒状胴部１０、底板部１５、天板部１６から構成される紙製の缶容器が製缶される。そして、天板部１６の飲口部１６ｂから液体内容物を缶容器内に充填し、図７（ｅ）に示すように飲口部１６ｂの上から引っ張り剥離性（ピールオフ性）のプルタブシート１６ｆを天板部１６表面に貼着して密封製缶される。特許文献１は紙製缶容器を成形するための成形装置の一例である。   Subsequently, as shown in FIGS. 7D to 7E, the lower end (bottom side) (and the upper end (top side)) of the trunk base paper 1 in the opening 14 at the lower portion and the upper portion of the trunk portion 10 respectively. The folded portions 1a and 1b are folded back inwardly of the barrel portion 10, and the inner peripheral surfaces of the folded portions 1a and 1b of the folded base paper 1 are respectively connected to the bottom plate attaching portion 15a and the top plate attaching portion 16a. The bottom plate adhering portion 15a and the ceiling are overlapped with the inner peripheral surface of the lower end (bottom side) and the upper end (top side) of the trunk portion 10 and the inner peripheral surface of the folded base paper 1 and the folded back portions 1a and 1b. A paper can container made up of the cylindrical body part 10, the bottom plate part 15, and the top plate part 16 is manufactured by caulking both surfaces of the plate attaching part 16a and bonding them by heat sealing. Then, the liquid contents are filled into the can from the mouthpiece portion 16b of the top plate portion 16, and the pull tab sheet 16f having a peelable (peel-off) property is pulled from above the mouthpiece portion 16b as shown in FIG. 7 (e). Is attached to the surface of the top plate portion 16 to be sealed. Patent Document 1 is an example of a forming apparatus for forming a paper can container.

このような紙製缶容器においては、図７（ｅ）に示す缶容器の天板部１６に貼着されているプルタブシート１６ｆを引っ張り剥離して、開口した飲口部１６ｂから、容器内のジュースなど飲料内容物を飲み、その途中で飲み残した場合には、その開口する飲口部１６ｂから異物が進入しないように、一般的には予め用意されたプラスチック製などのオーバーキャップを用いて容器の天板部を施蓋する必要があった。特許文献２、特許文献３は、そのオーバーキャップの一例である。   In such a paper can container, the pull tab sheet 16f attached to the top plate portion 16 of the can container shown in FIG. If you drink beverage content such as juice and leave it in the middle, you should generally use a pre-prepared plastic overcap so that foreign matter does not enter through the mouthpiece 16b that opens. It was necessary to cover the top plate of the container. Patent Documents 2 and 3 are examples of the overcap.

しかしながら、図７（ｅ）に示すように、前記缶容器の天板部１６側の筒状胴部１０上端（トップ部）には、その外周側に張り出すフランジ部など、施蓋した際にオーバーキャップを嵌合係止可能な機能がないため、缶容器のトップ部にオーバーキャップを固定することができず、単に被せるだけになってしまい、簡単に外れてしまうものであった。   However, as shown in FIG. 7 (e), the upper end (top portion) of the cylindrical body portion 10 on the top plate portion 16 side of the can container is covered with a flange portion or the like that protrudes to the outer peripheral side. Since there is no function capable of fitting and locking the overcap, the overcap cannot be fixed to the top portion of the can container, and it is simply put on and can be easily removed.

以下に、本願に関連する先行技術文献を記載する。
特開２００６−２７２８２０号公報 特開２００４−１８２２７０号公報 特開２００５−１７８８１２号公報 The prior art documents relevant to the present application are described below.
JP 2006-272820 A JP 2004-182270 A JP 2005-178812 A

本発明の課題は、紙製缶容器トップ部又は飲み残しの紙製缶容器のトップ部を施蓋するための紙製缶容器用のオーバーキャップにおいて、紙製缶容器のトップ部に単に被せるだけでなく、その缶容器のトップ部（天板部）を被覆するように施蓋して嵌合固定でき、簡単に外れることがない紙製缶容器用のオーバーキャップを提供することにある。   An object of the present invention is to simply cover the top part of the paper can container in the overcap for the paper can container for covering the top part of the paper can container or the top part of the unwashed paper can container. In addition, an object of the present invention is to provide an overcap for a paper can container that can be covered and fitted and fixed so as to cover the top portion (top plate portion) of the can container, and does not easily come off.

本発明の請求項１に係る発明は、筒状胴部１０と、該筒状胴部１０下端内周面及びその折り返し部１ａ内面にて底板部１５の貼着部１５ａがヒートシールされて取り付けられた底板部１５を備えるボトム部Ｄと、該筒状胴部１０上端の内周面及びその折り返し部１ｂ内面にて天板部１６の貼着部１６ａがヒートシールされて取り付けられた天板部１６を備えるトップ部Ｔとから構成される紙製缶容器Ａのトップ部Ｔを施蓋するオーバーキャップＢにおいて、紙製缶容器Ａのトップ部Ｔの外周面に嵌合する筒状側部２１と、該筒状側部２１の上部に設けた天板部２２とから構成され、該筒状側部２１の内周面には、トップ部Ｔの外周面に向かって圧接し且つ該トップ部Ｔの外周面に沿って、リング状に連続又は断続して突出する突起部２３を設け、前記天板部２２の外周には、少なくともその内面側がトップ部Ｔの上端縁に沿って平行なリング状の平坦部２４を設けたことを特徴とする紙製缶容器用オーバーキャップである。   In the invention according to claim 1 of the present invention, the cylindrical body 10 and the attaching part 15a of the bottom plate part 15 are attached by heat sealing at the inner peripheral surface at the lower end of the cylindrical body 10 and the inner surface of the folded part 1a. The bottom plate D provided with the bottom plate portion 15 and the top plate to which the attaching portion 16a of the top plate portion 16 is heat-sealed and attached at the inner peripheral surface of the upper end of the cylindrical body portion 10 and the inner surface of the folded portion 1b. In the overcap B that covers the top portion T of the paper can container A composed of the top portion T including the portion 16, the cylindrical side portion that fits the outer peripheral surface of the top portion T of the paper can container A 21 and a top plate portion 22 provided on the upper portion of the cylindrical side portion 21, and the inner peripheral surface of the cylindrical side portion 21 is pressed against the outer peripheral surface of the top portion T and the top A protrusion 23 is provided along the outer peripheral surface of the portion T so as to protrude continuously or intermittently in a ring shape. , The outer periphery of the top plate 22 is at least paper cans container overcap its inner side, characterized in that a flat portion 24 of the parallel ring-shape along the upper edge of the top portion T.

本発明の請求項２に係る発明は、上記請求項１に係る紙製缶容器用オーバーキャップにおいて、前記天板部２２と平坦部２４との間に、トップ部Ｔ上端内周面の折り返し部１ｂに向かって圧接し且つ該折り返し部１ｂに沿って、リング状に連続又は断続して突出する内側突起部２５を設けたことを特徴とする紙製缶容器用オーバーキャップである。   According to a second aspect of the present invention, in the overcap for a paper can container according to the first aspect, the folded portion of the upper peripheral surface of the top portion T between the top plate portion 22 and the flat portion 24. An overcap for a paper can container is provided with an inner protrusion 25 that presses toward 1b and protrudes continuously or intermittently in a ring shape along the folded portion 1b.

本発明の請求項３に係る発明は、上記請求項１又は２に係る紙製缶容器用オーバーキャップにおいて、前記筒状胴部１０上端部外周面に、前記筒状側部２１の内周面に設けた突起部２３が嵌合する外側嵌合凹部２６を設けたことを特徴とする紙製缶容器用オーバーキャップである。   The invention according to claim 3 of the present invention is the overcap for a paper can container according to claim 1 or 2, wherein the inner peripheral surface of the cylindrical side portion 21 is disposed on the outer peripheral surface of the upper end of the cylindrical trunk portion 10. An overcap for a paper can container is provided with an outer fitting concave portion 26 into which the protrusion 23 provided on the inner portion is fitted.

本発明の請求項４に係る発明は、筒状胴部１０と、該筒状胴部１０下端内周面及びその折り返し部１ａ内面にて底板部１５の貼着部１５ａがヒートシールされて取り付けられた底板部１５を備えるボトム部Ｄと、該筒状胴部１０上端の内周面及びその折り返し部１ｂ内面にて天板部１６の貼着部１６ａがヒートシールされて取り付けられた天板部１６を備えるトップ部Ｔとから構成される紙製缶容器Ａのトップ部Ｔを施蓋するオーバーキャップＢにおいて、紙製缶容器Ａのトップ部Ｔの内周面に嵌合する筒状側部２１と、該筒状側部
２１の上部に設けた天板部２２とから構成され、該筒状側部２１は、天板部２２側の上部筒状側部２１ａと下部筒状側部２１ｂとからなり、上部筒状側部２１ａと下部筒状側部２１ｂとの境界相当部分には、トップ部Ｔの内周上端面に沿って、リング状に連続又は断続して該下部筒状側部２１ｂ外周面より突出する突起部２１ｃを設け、前記下部筒状側部２１ｂの下端部にはリング状に連続又は断続して突起部２７を設け、前記紙製缶容器Ａのトップ部Ｔの折り返し部１ｂ下端部設けられた内側凹陥部２８内に、前記下部筒状側部２１ｂ下端部の突起部２７を嵌合可能としたことを特徴とする紙製缶容器用オーバーキャップである。 In the invention according to claim 4 of the present invention, the cylindrical body 10 and the attaching part 15a of the bottom plate part 15 are heat-sealed at the inner periphery of the lower end of the cylindrical body 10 and the inner surface of the folded part 1a. The bottom plate D provided with the bottom plate portion 15 and the top plate to which the attaching portion 16a of the top plate portion 16 is heat-sealed and attached at the inner peripheral surface of the upper end of the cylindrical body portion 10 and the inner surface of the folded portion 1b. In the overcap B that covers the top portion T of the paper can container A composed of the top portion T including the portion 16, the cylindrical side that fits the inner peripheral surface of the top portion T of the paper can container A Part 21 and a top plate part 22 provided on the upper part of the cylindrical side part 21, and the cylindrical side part 21 includes an upper cylindrical side part 21 a and a lower cylindrical side part on the top plate part 22 side. 21b, and in the portion corresponding to the boundary between the upper cylindrical side portion 21a and the lower cylindrical side portion 21b, A protrusion 21c that protrudes from the outer peripheral surface of the lower cylindrical side portion 21b is provided continuously or intermittently in a ring shape along the inner peripheral upper end surface of the bottom portion T, and is provided at the lower end portion of the lower cylindrical side portion 21b. The protrusion 27 is provided continuously or intermittently in a ring shape, and the lower cylindrical side portion 21b at the lower end portion is provided in the inner recessed portion 28 provided at the lower end portion of the folded portion 1b of the top portion T of the paper can container A. An overcap for a paper can container, characterized in that the protrusion 27 can be fitted.

本発明の請求項５に係る発明は、上記請求項４に係る紙製缶容器用オーバーキャップにおいて、前記紙製缶容器Ａのトップ部Ｔの折り返し部１ｂ下端部の内側凹陥部２８が、前記折り返し部１ｂ下端部に沿って、該下端部を断続してスリット状に切り込むことにより、切り取りして形成された切取部であることを特徴とする紙製缶容器用オーバーキャップである。   The invention according to claim 5 of the present invention is the overcap for a paper can container according to claim 4, wherein the inner recessed portion 28 at the lower end of the folded portion 1b of the top portion T of the paper can container A is An overcap for a paper can container, wherein the overcap is a cut portion formed by cutting the lower end portion intermittently into a slit shape along the lower end portion of the folded portion 1b.

本発明の請求項６に係る発明は、上記請求項４に係る紙製缶容器用オーバーキャップにおいて、前記紙製缶容器Ａのトップ部Ｔの折り返し部１ｂ下端部の内側凹陥部２８が、前記折り返し部１ｂ下端部に沿って、該下端部を断続して凹陥状にプレスすることにより形成された凹陥部であることを特徴とする紙製缶容器用オーバーキャップである。   The invention according to claim 6 of the present invention is the overcap for a paper can container according to claim 4, wherein the inner recessed portion 28 at the lower end of the folded portion 1b of the top portion T of the paper can container A is An overcap for a paper can container, wherein the overcap is a concave portion formed by intermittently pressing the lower end portion along the lower end portion of the folded portion 1b and pressing it into a concave shape.

本発明の請求項７に係る発明は、上記請求項４に係る紙製缶容器用オーバーキャップにおいて、前記紙製缶容器Ａのトップ部Ｔの折り返し部１ｂ下端部の内側凹陥部２８が、前記折り返し部１ｂ下端と天板部１６上面との間に形成された間隙部であることを特徴とする紙製缶容器用オーバーキャップである。   The invention according to claim 7 of the present invention is the overcap for a paper can container according to claim 4, wherein the inner recessed portion 28 at the lower end of the folded portion 1b of the top portion T of the paper can container A is An overcap for a paper can container, which is a gap formed between the lower end of the folded portion 1b and the top surface of the top plate portion 16.

本発明の紙製缶容器用オーバーキャップＢによれば、図１に示すように、筒状側部２１の内周面に、トップ部Ｔの外周面に向かって圧接し且つ該トップ部Ｔの外周面に沿って、リング状に、連続又は断続して突出する突起部２３を設けたので、キャップＢを紙製缶容器Ａのトップ部Ｔに被覆し施蓋した際には、キャップＢの筒状側部２１は突起部２３によってトップ部Ｔの外周面に圧接されて、オーバーキャップＢは紙製缶容器のトップ部Ｔに良好に固定された状態で施蓋することが可能となる。   According to the overcap B for a paper can container of the present invention, as shown in FIG. 1, the inner side surface of the cylindrical side portion 21 is pressed against the outer peripheral surface of the top portion T and the top portion T Since the projecting portion 23 that protrudes continuously or intermittently in a ring shape is provided along the outer peripheral surface, when the cap B is covered and covered with the top portion T of the paper can container A, the cap B The cylindrical side portion 21 is pressed against the outer peripheral surface of the top portion T by the protruding portion 23, and the overcap B can be covered with the top portion T of the paper can container being well fixed.

また本発明の紙製缶容器用オーバーキャップＢによれば、前記天板部２２の外周には、少なくとも、その天板部２２内面側がトップ部Ｔの上端縁に沿って平行なリング状の平坦部２４を設けたので、キャップＢを紙製缶容器Ａのトップ部Ｔに被覆し施蓋した際には、キャップＢは、筒状側部２１と天板部２２との間の高さに形成された平坦部２４が、トップ部Ｔの上端部に当接して、それにより施蓋時のキャップＢ本体の下方への必要以上の移動を停止できるものである。   Further, according to the overcap B for a paper can container of the present invention, at least on the outer periphery of the top plate portion 22, a ring-shaped flat surface in which at least the inner surface side of the top plate portion 22 is parallel to the upper edge of the top portion T Since the portion 24 is provided, when the cap B is covered and covered on the top portion T of the paper can container A, the cap B is at a height between the cylindrical side portion 21 and the top plate portion 22. The formed flat portion 24 comes into contact with the upper end portion of the top portion T, and thereby it is possible to stop the unnecessary movement of the cap B main body below when the lid is applied.

また本発明の紙製缶容器用オーバーキャップＢによれば、図２に示すように、前記天板部２２と平坦部２４との間に、トップ部Ｔ上端内周面の折り返し部１ｂに向かって圧接する内側突起部２５を設けたので、キャップＢを紙製缶容器Ａのトップ部Ｔに被覆し施蓋した際には、キャップＢの筒状側部２１にある突起部２３が、トップ部Ｔの外周面に圧接し、さらに、前記天板部２２と平坦部２４との間の突起部２５が、トップ部Ｔ上端内周面の折り返し部１ｂに向かって圧接する。そのため、紙製缶容器Ａトップ部Ｔの上端部は、その内外周面から挟持されて、オーバーキャップＢは、紙製缶容器のトップ部Ｔに良好に固定された状態で施蓋することが可能となる。   Further, according to the overcap B for a paper can container of the present invention, as shown in FIG. 2, the top portion T and the flat portion 24 are disposed between the top portion 22 and the flat portion 24 toward the folded portion 1b on the inner peripheral surface of the top portion T. Since the inner protrusion 25 is press-contacted, when the cap B is covered and covered with the top portion T of the paper can container A, the protrusion 23 on the cylindrical side portion 21 of the cap B Further, the protrusion 25 between the top plate 22 and the flat portion 24 is pressed against the outer peripheral surface of the portion T toward the folded portion 1b on the inner peripheral surface of the upper end of the top portion T. For this reason, the upper end portion of the paper can container A top portion T is sandwiched from the inner and outer peripheral surfaces, and the overcap B can be covered in a state of being well fixed to the top portion T of the paper can container. It becomes possible.

また本発明の紙製缶容器用オーバーキャップＢによれば、図１に示すキャップＢにおい
て、図３に示すように、前記筒状胴部１０上端部外周面に前記筒状側部２１の内周面に設けた突起部２３が嵌合する外側嵌合凹部２６を設けたので、キャップＢを紙製缶容器Ａのトップ部Ｔに被覆し施蓋した際には、キャップＢの筒状側部２１にある突起部２３が、前記筒状胴部１０上端部外周面に設けた嵌合凹部２６内に入り込み嵌合する。そのため、オーバーキャップＢは、紙製缶容器のトップ部Ｔに良好に固定された状態で施蓋することが可能となる。 Further, according to the overcap B for a paper can container of the present invention, as shown in FIG. 3, in the cap B shown in FIG. Since the outer fitting recess 26 into which the protrusion 23 provided on the peripheral surface is fitted is provided, when the cap B is covered and covered on the top portion T of the paper can container A, the cylindrical side of the cap B The protrusion 23 in the portion 21 enters and fits into the fitting recess 26 provided on the outer peripheral surface of the upper end portion of the cylindrical body 10. Therefore, it is possible to cover the overcap B in a state where it is well fixed to the top portion T of the paper can container.

また本発明の紙製缶容器用オーバーキャップＢによれば、図２に示すキャップＢにおいて、図４に示すように、前記筒状胴部１０上端部外周面に前記筒状側部２１の内周面に設けた突起部２３が嵌合する外側嵌合凹部２６を設けたので、キャップＢを紙製缶容器Ａのトップ部Ｔに被覆し施蓋した際には、キャップＢの筒状側部２１にある突起部２３が、前記筒状胴部１０上端部外周面に設けた嵌合凹部２６内に入り込み嵌合すると共に、前記天板部２２と平坦部２４との間に設けたトップ部Ｔ上端内周面の折り返し部１ｂに向かって圧接する内側突起部２５が、トップ部Ｔ上端内周面の折り返し部１ｂに向かって圧接する。そのため、オーバーキャップＢは、紙製缶容器のトップ部Ｔに良好に固定された状態で施蓋することが可能となる。   Further, according to the overcap B for a paper can container of the present invention, in the cap B shown in FIG. 2, as shown in FIG. Since the outer fitting recess 26 into which the protrusion 23 provided on the peripheral surface is fitted is provided, when the cap B is covered and covered on the top portion T of the paper can container A, the cylindrical side of the cap B The protrusion 23 in the portion 21 enters and fits into the fitting recess 26 provided on the outer peripheral surface of the upper end of the cylindrical body 10, and the top provided between the top plate portion 22 and the flat portion 24. The inner projecting portion 25 that presses toward the folded portion 1b on the inner peripheral surface of the top end of the portion T presses against the folded portion 1b on the inner peripheral surface of the top end of the top portion T. Therefore, it is possible to cover the overcap B in a state where it is well fixed to the top portion T of the paper can container.

また本発明の紙製缶容器用オーバーキャップＢによれば、図５に示すように、紙製缶容器Ａのトップ部Ｔの内周面に嵌合する筒状側部２１と、該筒状側部２１の上部に設けた天板部２２とから構成され、該筒状側部２１は、天板部２２側の上部筒状側部２１ａと下部筒状側部２１ｂとからなり、上部筒状側部２１ａと下部筒状側部２１ｂとの境界相当部分には、トップ部Ｔの内周上端面に沿って、リング状に連続又は断続して該下部筒状側部２１ｂ外周面より突出する突起部２１ｃを設けたので、キャップＢを紙製缶容器Ａのトップ部Ｔに被覆し施蓋した際には、キャップＢは、上部筒状側部２１ａと下部筒状側部２１ｂとの境界相当部分の高さに設けた突起部２１ｃが、トップ部Ｔの内周上端部に当接して、それにより、施蓋時におけるキャップＢ本体の下方への必要以上の移動を停止できるものである。   Further, according to the overcap B for a paper can container of the present invention, as shown in FIG. 5, the cylindrical side portion 21 fitted to the inner peripheral surface of the top portion T of the paper can container A, and the cylindrical shape The cylindrical side portion 21 is composed of an upper cylindrical side portion 21a and a lower cylindrical side portion 21b on the top plate portion 22 side. The portion corresponding to the boundary between the cylindrical side portion 21a and the lower cylindrical side portion 21b is continuous or intermittent in a ring shape along the inner peripheral upper end surface of the top portion T and protrudes from the outer peripheral surface of the lower cylindrical side portion 21b. When the cap B is covered and covered with the top portion T of the paper can container A, the cap B is formed between the upper cylindrical side portion 21a and the lower cylindrical side portion 21b. The protruding portion 21c provided at the height of the boundary equivalent portion abuts on the inner peripheral upper end portion of the top portion T. Tsu in which the movement excessive downward of flop B body can be stopped.

また本発明の紙製缶容器用オーバーキャップＢによれば、図５に示すように、キャップＢの下部筒状側部２１ｂの下端部に突起部２７を設け、前記紙製缶容器Ａのトップ部Ｔ内周下端部の折り返し部１ｂ下端と、天板部１６上面との間には、内側凹陥部２８を設けたので、キャップＢの筒状側部２１を紙製缶容器Ａのトップ部Ｔの内周面に嵌入して、キャップＢをトップ部Ｔに被覆し施蓋した際には、キャップＢは、下部筒状側部２１ｂ下端部の突起部２７が、トップ部Ｔ内周下端部の前記凹陥部２８内に入り込み嵌合して、そのため、オーバーキャップＢは、紙製缶容器のトップ部Ｔに良好に固定された状態で施蓋することが可能となる。   Further, according to the overcap B for a paper can container of the present invention, as shown in FIG. 5, a protrusion 27 is provided at the lower end portion of the lower cylindrical side portion 21b of the cap B, and the top of the paper can container A is formed. Since the inner recessed portion 28 is provided between the lower end of the folded portion 1b at the inner peripheral lower end portion of the portion T and the top surface of the top plate portion 16, the cylindrical side portion 21 of the cap B is connected to the top portion of the paper can container A. When the cap B is covered and covered with the top portion T by being inserted into the inner peripheral surface of T, the cap B has the protrusion 27 at the lower end of the lower cylindrical side portion 21b, and the lower end of the inner periphery of the top portion T. Therefore, the overcap B can be covered in a state of being well fixed to the top portion T of the paper can container.

本発明の紙製缶容器用オーバーキャップの実施の形態を、図面に基づいて以下に詳細に説明する。なお、本発明のオーバーキャップを施蓋用として使用する紙製缶容器は、従来の技術及び図７（ａ）〜（ｅ）にて説明したように製缶され、液体内容物が充填密封されるものである。   An embodiment of an overcap for a paper can container according to the present invention will be described below in detail with reference to the drawings. In addition, the paper can container which uses the overcap of the present invention for the lid is made as described in the prior art and FIGS. 7A to 7E, and the liquid contents are filled and sealed. Is.

図１は、本発明の第一の実施の形態を説明する側断面図であり、本発明のオーバーキャップＢを施蓋用として使用する紙製缶容器Ａは、円筒状あるいは角筒状（角丸四角筒状）の筒状胴部１０と、該筒状胴部１０下端内周面及びその折り返し部１ａ内面にて底板部１５の貼着部１５ａがヒートシールされて取り付けられた底板部１５を備えるボトム部Ｄ（図７（ｅ）参照）と、該筒状胴部１０上端の内周面及びその折り返し部１ｂ内面にて天板部１６の貼着部１６ａがヒートシールされて取り付けられた天板部１６を備えるトップ部Ｔとから構成されている。   FIG. 1 is a side sectional view for explaining a first embodiment of the present invention. A paper can container A using an overcap B of the present invention for a lid is formed in a cylindrical shape or a rectangular tube shape (corner). A cylindrical body 10 having a round rectangular tube shape, and a bottom plate portion 15 to which a sticking portion 15a of the bottom plate portion 15 is attached by heat sealing at the inner peripheral surface of the lower end of the cylindrical barrel portion 10 and the inner surface of the folded portion 1a. And a sticking portion 16a of the top plate portion 16 is attached on the inner peripheral surface of the upper end of the cylindrical body portion 10 and the inner surface of the folded portion 1b by heat sealing. And a top portion T including the top plate portion 16.

図１に示すように、本発明の第一の実施の形態におけるオーバーキャップＢは、前記紙製缶容器Ａのトップ部Ｔの部位に施蓋されるものであるが、トップ部Ｔの天板部１６には飲口部１６ｂが孔設され、容器Ａ内に液体内容物が充填された後は、飲口部１６ｂは、引っ張り剥離性（ピールオフ性）のプルタブシート１６ｆが天板部１６表面に貼着されて密封されている状態か、あるいはプルタブシート１６ｆが剥離されて飲口部１６ｂが開口している状態である。   As shown in FIG. 1, the overcap B in the first embodiment of the present invention is applied to the top portion T of the paper can container A. After the mouth 16b is formed in the portion 16 and the liquid content is filled in the container A, the mouth portion 16b has a pull tab sheet 16f having a peelable (peel off) pull tab sheet 16f. The pull tab sheet 16f is peeled off and the mouthpiece 16b is open.

本発明の第一の実施の形態におけるオーバーキャップＢは、紙製缶容器Ａのトップ部Ｔの外周面に嵌合する筒状側部２１と、その筒状側部２１の上部に設けた天板部２２とから構成され、前記筒状側部２１の内周面には、トップ部Ｔの外周面に向かって圧接し、且つ該トップ部Ｔの外周面に沿って、リング状に連続又は断続して突出する突起部２３（又はトップ部Ｔの外周面が向かって筒状側部２１が凹む形状の突出する突起部２３）が設けられている。前記天板部２２の外周には、少なくともその内面側が、トップ部Ｔの上端縁に沿って平行なリング状の平坦部２４が設けられている。   The overcap B in the first embodiment of the present invention includes a cylindrical side portion 21 that fits on the outer peripheral surface of the top portion T of the paper can container A, and a ceiling provided on the upper portion of the cylindrical side portion 21. The plate portion 22 is configured to be in pressure contact with the inner peripheral surface of the cylindrical side portion 21 toward the outer peripheral surface of the top portion T, and continuously in a ring shape along the outer peripheral surface of the top portion T. An intermittently protruding protrusion 23 (or a protruding protrusion 23 having a shape in which the cylindrical side portion 21 is recessed toward the outer peripheral surface of the top portion T) is provided. On the outer periphery of the top plate portion 22, a ring-shaped flat portion 24 is provided in which at least the inner surface side thereof is parallel to the upper end edge of the top portion T.

上記第一の実施の形態のオーバーキャップＢは、そのキャップＢを、その筒状側部２１の筒内に紙製缶容器Ａのトップ部Ｔを嵌入して装着し施蓋した際に、図１に示すように、トップ部Ｔの外周面に上記キャップＢの突起部２３が、トップ部Ｔの上端部外周面に向かって、連続又は断続してリング状に圧接して、紙製缶容器Ａのトップ部Ｔに脱着可能に固定される。   When the overcap B according to the first embodiment is attached to the cap B by inserting the top portion T of the paper can container A into the cylinder of the cylindrical side portion 21 and applying the lid, FIG. As shown in FIG. 1, the protrusion 23 of the cap B is continuously or intermittently pressed in a ring shape toward the outer peripheral surface of the top portion T on the outer peripheral surface of the top portion T, so that a paper can container It is detachably fixed to the top portion T of A.

また、上記第一の実施の形態のオーバーキャップＢは、そのキャップＢを、その筒状側部２１の筒内に紙製缶容器Ａのトップ部Ｔを嵌入して装着し施蓋した際に、図１に示すように、トップ部Ｔの上端面に上記キャップＢの平坦部２４（その内面）が当接して、それにより施蓋時のキャップＢ本体の下方への必要以上の移動が停止し、必要な深さにて施蓋される。   The overcap B according to the first embodiment is formed when the cap B is fitted and covered with the top portion T of the paper can container A inserted into the cylinder of the cylindrical side portion 21. As shown in FIG. 1, the flat portion 24 (the inner surface) of the cap B comes into contact with the upper end surface of the top portion T, thereby stopping the unnecessary movement of the cap B body downward when the lid is applied. And it is covered with the required depth.

図２は、本発明の第二の実施の形態におけるオーバーキャップＢであり、図１に示す上記第一の実施の形態の紙製缶容器用オーバーキャップにおいて、前記天板部２２と平坦部２４との間に、トップ部Ｔ上端内周面の内方に向かって突出し、且つその内周面の折り返し部１ｂに向かって圧接する内側突起部２５が、該折り返し部１ｂに沿って、リング状に連続又は断続して設けられているものである。   FIG. 2 shows an overcap B according to the second embodiment of the present invention. In the overcap for a paper can container according to the first embodiment shown in FIG. The inner projection 25 that protrudes inward of the inner peripheral surface of the upper end of the top portion T and press-contacts toward the folded portion 1b of the inner circumferential surface is formed in a ring shape along the folded portion 1b. Are provided continuously or intermittently.

上記第二の実施の形態のオーバーキャップＢは、そのキャップＢを、その筒状側部２１の筒内に紙製缶容器Ａのトップ部Ｔを嵌入して装着し施蓋した際に、図２に示すように、キャップＢの突起部２３が、トップ部Ｔの上端部外周面に向かってリング状に圧接すると共に、該キャップＢの内側突起部２５が、トップ部Ｔ上端内周面に向かって圧接し、突起部２３と突起部２５とによってトップ部Ｔの上端部が挟持されて、紙製缶容器Ａのトップ部Ｔに脱着可能に固定される。   When the overcap B according to the second embodiment is attached to the cap B by inserting the top portion T of the paper can container A into the cylinder of the cylindrical side portion 21 and applying the lid, FIG. 2, the protrusion 23 of the cap B presses in a ring shape toward the outer peripheral surface of the upper end of the top T, and the inner protrusion 25 of the cap B contacts the inner peripheral surface of the upper end of the top T. The upper end portion of the top portion T is sandwiched between the projecting portion 23 and the projecting portion 25 and fixed to the top portion T of the paper can container A so as to be detachable.

図３は、本発明の第三の実施の形態のオーバーキャップＢであり、図１に示す上記第一の実施の形態の紙製缶容器用オーバーキャップにおいて、紙製缶容器Ａは、筒状胴部１０上端部外周面に沿って、前記筒状側部２１の内周面に設けた突起部２３が嵌合する外側嵌合凹部２６が断続して（又は連続して）設けられている。   FIG. 3 shows an overcap B according to a third embodiment of the present invention. In the overcap for a paper can container according to the first embodiment shown in FIG. 1, the paper can container A has a cylindrical shape. An outer fitting recess 26 into which the protrusion 23 provided on the inner peripheral surface of the cylindrical side portion 21 is fitted is provided intermittently (or continuously) along the outer peripheral surface of the upper end portion of the trunk portion 10. .

なお、筒状胴部１０上端部外周面に沿う前記外側嵌合凹部２６の形成においては、胴部原紙１（図７（ａ）参照）のトップ部Ｔ側における折り返し部１ｂの領域より下方の胴部原紙１に、該折り返し部１ｂの近傍に沿って断続してスリット状に穿設部を設けて製缶することにより、筒状胴部１０上端部外周面に沿った前記外側嵌合凹部２６が断続して形成
される。 In forming the outer fitting concave portion 26 along the outer peripheral surface of the upper end portion of the cylindrical body portion 10, the region below the folded portion 1 b on the top portion T side of the body base paper 1 (see FIG. 7A). The outer mating concave portion along the outer peripheral surface of the upper end portion of the cylindrical trunk portion 10 is formed by forming a slit in the trunk base paper 1 along the vicinity of the folded portion 1b and providing a slit-like perforated portion. 26 is formed intermittently.

上記第三の実施の形態のオーバーキャップＢは、そのキャップＢを、その筒状側部２１の筒内に紙製缶容器Ａのトップ部Ｔを嵌入して装着し施蓋した際に、図３に示すように、キャップＢの突起部２３が、トップ部Ｔの上端部外周面に沿って設けた外側嵌合凹部２６内に入り込んで嵌合されて、紙製缶容器Ａのトップ部Ｔに脱着可能に固定される。   When the overcap B of the third embodiment is fitted and covered with the top portion T of the paper can container A inserted into the cylinder of the cylindrical side portion 21, the cap B is shown in FIG. 3, the protrusion 23 of the cap B enters and fits into the outer fitting recess 26 provided along the outer peripheral surface of the upper end of the top T, and the top T of the paper can container A It is fixed in a removable manner.

図４は、本発明の第四の実施の形態のオーバーキャップＢであり、図２に示す上記第二の実施の形態の紙製缶容器用オーバーキャップにおいて、紙製缶容器Ａは、筒状胴部１０上端部外周面に沿って、前記筒状側部２１の内周面に設けた突起部２３が嵌合する外側嵌合凹部２６が、断続して（又は連続して）設けられている。   FIG. 4 shows an overcap B according to a fourth embodiment of the present invention. In the overcap for a paper can container according to the second embodiment shown in FIG. 2, the paper can container A has a cylindrical shape. An outer fitting recess 26 is provided intermittently (or continuously) along the outer peripheral surface of the upper end portion of the body portion 10 to which the protrusion 23 provided on the inner peripheral surface of the cylindrical side portion 21 is fitted. Yes.

上記第四の実施の形態のオーバーキャップＢは、そのキャップＢを、その筒状側部２１の筒内に紙製缶容器Ａのトップ部Ｔを嵌入して装着し施蓋した際に、図４に示すように、キャップＢの突起部２３が、トップ部Ｔの上端部外周面に沿って設けた外側嵌合凹部２６内に入り込んで嵌合されて、トップ部Ｔの上端部外周面に向かってリング状に圧接する。一方、キャップＢの内側突起部２５が、トップ部Ｔ上端内周面に向かって圧接して、トップ部Ｔの上端部の嵌合凹部２６内に係合してトップ部Ｔの上端部の外周面（天板部１６の貼着部１６ａ外面）を圧接する突起部２３と、トップ部Ｔの上端部内周面を圧接する突起部２５とによって、トップ部Ｔの上端部が挟持されて、紙製缶容器Ａのトップ部Ｔに脱着可能に固定される。   When the overcap B of the fourth embodiment is fitted and covered with the top portion T of the paper can container A inserted into the cylinder of the cylindrical side portion 21, the overcap B of FIG. 4, the protrusion 23 of the cap B enters the outer fitting recess 26 provided along the outer peripheral surface of the upper end portion of the top portion T and is fitted into the outer peripheral surface of the upper end portion of the top portion T. It is pressed in a ring shape. On the other hand, the inner projecting portion 25 of the cap B is pressed against the inner peripheral surface of the upper end of the top portion T and engages in the fitting recess 26 of the upper end portion of the top portion T, and the outer periphery of the upper end portion of the top portion T. The upper end portion of the top portion T is sandwiched between the protrusion portion 23 that presses the surface (the outer surface of the sticking portion 16a of the top plate portion 16) and the protrusion portion 25 that presses the inner peripheral surface of the upper end portion of the top portion T. It is detachably fixed to the top part T of the can-making container A.

図５は、本発明の第五の実施の形態のオーバーキャップＢであり、このオーバーキャップＢが施蓋される紙製缶容器Ａは、筒状胴部１０と、該筒状胴部１０下端内周面及びその折り返し部１ａ内面にて底板部１５の貼着部１５ａがヒートシールされて取り付けられた底板部１５を備えるボトム部Ｄ（図７（ｅ）参照）と、該筒状胴部１０上端の内周面及びその折り返し部１ｂ内面にて天板部１６の貼着部１６ａがヒートシールされて取り付けられた天板部１６を備えるトップ部Ｔとから構成され、該トップ部Ｔの前記折り返し部１ｂ下端部と天板部１６上面との間には、該折り返し部１ｂ下端部と天板部１６の貼着部１６ａとにより形成される段差による内側凹陥部２８が設けられている。   FIG. 5 shows an overcap B according to a fifth embodiment of the present invention. A paper can container A covered with the overcap B includes a cylindrical body 10 and a lower end of the cylindrical body 10. A bottom portion D (see FIG. 7 (e)) having a bottom plate portion 15 to which a sticking portion 15a of the bottom plate portion 15 is heat-sealed and attached on an inner peripheral surface and an inner surface of the folded portion 1a, and the cylindrical body portion 10 is composed of a top portion T provided with a top plate portion 16 to which an adhesive portion 16a of the top plate portion 16 is heat-sealed and attached to the inner peripheral surface of the upper end and the inner surface of the folded portion 1b. Between the lower end portion of the folded portion 1b and the upper surface of the top plate portion 16, there is provided an inner recessed portion 28 formed by a step formed by the lower end portion of the folded portion 1b and the attaching portion 16a of the top plate portion 16. .

本発明の第五の実施の形態のオーバーキャップＢは、図５に示すように、紙製缶容器Ａのトップ部Ｔの内周面に嵌合する筒状側部２１と、該筒状側部２１の上部に設けた天板部２２とから構成されていて、前記筒状側部２１は、天板部２２側の上部筒状側部２１ａと下部筒状側部２１ｂとから構成されている。   As shown in FIG. 5, the overcap B according to the fifth embodiment of the present invention includes a cylindrical side portion 21 fitted to the inner peripheral surface of the top portion T of the paper can container A, and the cylindrical side. The cylindrical side portion 21 is composed of an upper cylindrical side portion 21a and a lower cylindrical side portion 21b on the top plate portion 22 side. Yes.

前記上部筒状側部２１ａと下部筒状側部２１ｂとの境界相当部分には、トップ部Ｔの内周上端面に沿って、リング状に連続又は断続して、該下部筒状側部２１ｂ外周面より突出する突起部２１ｃが設けられ、前記下部筒状側部２１ｂの下端部には、リング状に連続又は断続して突起部２７が設けられている。   A portion corresponding to the boundary between the upper cylindrical side portion 21a and the lower cylindrical side portion 21b is continuously or intermittently formed in a ring shape along the inner peripheral upper end surface of the top portion T, and the lower cylindrical side portion 21b. A protruding portion 21c protruding from the outer peripheral surface is provided, and a protruding portion 27 is provided at the lower end portion of the lower cylindrical side portion 21b continuously or intermittently in a ring shape.

上記第五の実施の形態のオーバーキャップＢは、図５に示すように、そのキャップＢをその筒状側部２１を紙製缶容器Ａのトップ部Ｔ上端部内周側（折り返し部１ｂ内周側）に嵌入して装着し施蓋した際に、キャップＢの下部筒状側部２１ｂ外周面より外側方向に突出する突起部２１ｃが、トップ部Ｔの上端部に当接して、それにより施蓋時のキャップＢ本体の下方への必要以上の移動が停止し、必要な深さにて施蓋される。   As shown in FIG. 5, the overcap B of the fifth embodiment has its cylindrical side portion 21 connected to the inner peripheral side of the top portion T of the paper can container A (the inner periphery of the folded portion 1 b). The projection 21c that protrudes outward from the outer peripheral surface of the lower cylindrical side portion 21b of the cap B comes into contact with the upper end portion of the top portion T and is thus applied. Unnecessary movement of the cap B body below the lid at the time of the lid stops, and the lid is applied at a necessary depth.

また、上記第五の実施の形態のオーバーキャップＢは、図５に示すように、そのキャップＢをその筒状側部２１を紙製缶容器Ａのトップ部Ｔ上端部内周側（折り返し部１ｂ内周側）に嵌入して装着し施蓋した際に、トップ部Ｔ上端部内周に折り返し部１ｂ下端部と天
板部１６の貼着部１６ａとにより形成される内側凹陥部２８内に、前記筒状側部２１の下部筒状側部２１ｂ下端部に設けた突起部２７が嵌合して、紙製缶容器Ａのトップ部Ｔに脱着可能に固定される。 Further, as shown in FIG. 5, the overcap B according to the fifth embodiment has its cylindrical side portion 21 connected to the inner peripheral side of the top portion T of the top portion T of the paper can container A (the folded portion 1b). In the inner recess 28 formed by the lower end of the folded portion 1b and the attaching portion 16a of the top plate 16 on the inner periphery of the upper end of the top portion T when fitted and attached to the inner peripheral side) A protrusion 27 provided at the lower end of the lower cylindrical side portion 21b of the cylindrical side portion 21 is fitted and fixed to the top portion T of the paper can container A so as to be detachable.

なお本発明においては、上記第五の実施の形態のオーバーキャップＢにおける内側凹陥部２８は、図５に示すように、紙製缶容器Ａのトップ部Ｔの折り返し部１ｂ下端部と、天板部１６上面との間に、該折り返し部１ｂ下端部と、天板部１６の貼着部１６ａとにより形成される段差によるものの他に、胴部原紙１（図７（ａ）参照）のトップ部Ｔ側における折り返し部１ｂの領域内の胴部原紙１に、該折り返し部１ｂ（長手方向）に沿って断続してスリット状に穿設部を設けて製缶することにより、筒状胴部１０のトップ部Ｔの上端部内周面に沿った前記内側凹陥部２８がトップ部Ｔの折り返し部１ｂ下端部の領域内に断続して形成される。   In the present invention, the inner recessed portion 28 in the overcap B of the fifth embodiment includes a lower end portion of the folded portion 1b of the top portion T of the paper can container A, and a top plate as shown in FIG. In addition to the difference in level formed between the lower end of the folded portion 1b and the sticking portion 16a of the top plate portion 16 between the top surface of the portion 16 and the top of the trunk base paper 1 (see FIG. 7A) A tubular body portion is formed by forming a slit-shaped perforated portion on the body base paper 1 in the region of the folded portion 1b on the portion T side, intermittently along the folded portion 1b (longitudinal direction). The inner recessed portion 28 along the inner peripheral surface of the upper end portion of the top portion T is formed intermittently in the region of the lower end portion of the folded portion 1b of the top portion T.

図６（ａ）、（ｂ）は、紙製缶容器Ａのトップ部Ｔに装着され施蓋された本発明のオーバーキャップＢの一実施例を示す外観斜視図であり、（ａ）は、上記第二、第四の実施の形態におけるオーバーキャップＢ、（ｂ）は、上記第五の実施の形態におけるオーバーキャップＢであり、オーバーキャップＢの製造材料としては、本発明においては、特に限定されるものではないが、例えば、ポリエチレン、ポリプロピレン、ポリスチレン、ポリエチレンテレフタレート等のプラスチック類、又はアルミニウム等の金属類、又は紙類等がある。   6 (a) and 6 (b) are external perspective views showing an embodiment of the overcap B of the present invention attached to the top portion T of the paper can container A and covered, (a) The overcap B in the second and fourth embodiments, (b), is the overcap B in the fifth embodiment, and the production material of the overcap B is particularly limited in the present invention. For example, there are plastics such as polyethylene, polypropylene, polystyrene, and polyethylene terephthalate, metals such as aluminum, and papers.

本発明のオーバーキャップＢ及び施蓋された紙製缶容器Ａのトップ部Ｔの第一の実施の形態における側断面図。The side sectional view in 1st embodiment of the top part T of the overcap B of this invention and the paper can container A which was covered. 本発明のオーバーキャップＢ及び施蓋された紙製缶容器Ａのトップ部Ｔの第二の実施の形態における側断面図。The side sectional view in 2nd embodiment of the top part T of the overcap B of this invention and the paper can container A which was covered. 本発明のオーバーキャップＢ及び施蓋された紙製缶容器Ａのトップ部Ｔの第三の実施の形態における側断面図。Side sectional drawing in 3rd embodiment of the top part T of the overcap B of this invention and the paper can container A which was covered. 本発明のオーバーキャップＢ及び施蓋された紙製缶容器Ａのトップ部Ｔの第四の実施の形態における側断面図。Side sectional drawing in 4th embodiment of the top part T of the overcap B of this invention and the paper-made can container A which was covered. 本発明のオーバーキャップＢ及び施蓋された紙製缶容器Ａのトップ部Ｔの第五の実施の形態における側断面図。Sectional drawing in 5th Embodiment of the top part T of the overcap B of this invention and the paper can container A by which it was covered. 本発明のオーバーキャップＢ及び施蓋された紙製缶容器Ａの外観斜視図。1 is an external perspective view of an overcap B and a covered paper can container A according to the present invention. （ａ）〜（ｅ）は、紙製缶容器Ａの製缶工程を説明する工程説明図。(A)-(e) is process explanatory drawing explaining the can-making process of the paper can container A. FIG.

符号の説明Explanation of symbols

Ａ…紙製缶容器
Ｂ…オーバーキャップ
Ｂ1 …開口部
Ｄ…ボトム部
Ｔ…トップ部
１…胴部原紙
１ａ、１ｂ…折り返し部
１０…筒状胴部
１１、１２…両端部
１３…サイド貼り合わせ部
１５…底板部
１５ａ…底板部貼着部
１６…天板部
１６ａ…天板部貼着部
１６ｂ…飲口部
１６ｆ…ピールオフフィルム
２１…側板部
２１ａ…上部側板部
２１ｂ…下部側板部
２１ｃ…突起部
２２…天板部
２３…突起部
２４…平坦部
２５…内側突起部 ２６…外側凹陥部
２７…突起部
２８…内側凹陥部 A ... Paper can container B ... Overcap B1 ... Opening part D ... Bottom part T ... Top part 1 ... Roller base paper 1a, 1b ... Turn-up part 10 ... Cylindrical trunk parts 11, 12 ... Both ends 13 ... Side bonding Part 15 ... Bottom plate part 15a ... Bottom plate part sticking part 16 ... Top plate part 16a ... Top plate part sticking part 16b ... Mouthpiece part 16f ... Peel-off film 21 ... Side plate part 21a ... Upper side plate part 21b ... Lower side plate part 21c ... Projection part 22 ... Top plate part 23 ... Projection part 24 ... Flat part 25 ... Inner projection part 26 ... Outer recess part 27 ... Projection part 28 ... Inner recess part

Claims (7)

筒状胴部１０と、該筒状胴部１０下端内周面及びその折り返し部１ａ内面にて底板部１５の貼着部１５ａがヒートシールされて取り付けられた底板部１５を備えるボトム部Ｄと、該筒状胴部１０上端の内周面及びその折り返し部１ｂ内面にて天板部１６の貼着部１６ａがヒートシールされて取り付けられた天板部１６を備えるトップ部Ｔとから構成される紙製缶容器Ａのトップ部Ｔを施蓋するオーバーキャップＢにおいて、紙製缶容器Ａのトップ部Ｔの外周面に嵌合する筒状側部２１と、該筒状側部２１の上部に設けた天板部２２とから構成され、該筒状側部２１の内周面には、トップ部Ｔの外周面に向かって圧接し且つ該トップ部Ｔの外周面に沿って、リング状に連続又は断続して突出する突起部２３を設け、前記天板部２２の外周には、少なくともその内面側がトップ部Ｔの上端縁に沿って平行なリング状の平坦部２４を設けたことを特徴とする紙製缶容器用オーバーキャップ。   A bottom part D including a cylindrical body part 10 and a bottom plate part 15 to which the sticking part 15a of the bottom plate part 15 is heat-sealed and attached at the inner peripheral surface of the lower end of the cylindrical body part 10 and the inner surface of the folded part 1a; The top portion T is provided with a top plate portion 16 to which a sticking portion 16a of the top plate portion 16 is attached by heat sealing at the inner peripheral surface of the upper end of the cylindrical body portion 10 and the inner surface of the folded portion 1b. In the overcap B that covers the top portion T of the paper can container A, the cylindrical side portion 21 fitted to the outer peripheral surface of the top portion T of the paper can container A, and the upper portion of the cylindrical side portion 21 The cylindrical side portion 21 is in pressure contact with the inner peripheral surface of the cylindrical side portion 21 toward the outer peripheral surface of the top portion T and along the outer peripheral surface of the top portion T. Is provided with a protruding portion 23 that protrudes continuously or intermittently on the outer periphery of the top plate portion 22. Without even paper can container for overcap, characterized in that its inner surface is provided with a flat portion 24 of the parallel ring-shape along the upper edge of the top portion T. 請求項１記載の紙製缶容器用オーバーキャップにおいて、前記天板部２２と平坦部２４との間に、トップ部Ｔ上端内周面の折り返し部１ｂに向かって圧接し且つ該折り返し部１ｂに沿って、リング状に連続又は断続して突出する内側突起部２５を設けたことを特徴とする紙製缶容器用オーバーキャップ。   The overcap for a paper can container according to claim 1, wherein the top plate portion 22 and the flat portion 24 are pressed against the folded portion 1b on the inner peripheral surface of the upper end of the top portion T and are brought into contact with the folded portion 1b. An overcap for a paper can container, characterized in that an inner projecting portion 25 that protrudes continuously or intermittently in a ring shape is provided. 請求項１又は２記載の紙製缶容器用オーバーキャップにおいて、前記筒状胴部１０上端部外周面に、前記筒状側部２１の内周面に設けた突起部２３が嵌合する外側嵌合凹部２６を設けたことを特徴とする紙製缶容器用オーバーキャップ。   3. The overcap for a paper can container according to claim 1 or 2, wherein an outer fitting into which a protruding portion 23 provided on an inner peripheral surface of the cylindrical side portion 21 is fitted to an outer peripheral surface of the upper end portion of the cylindrical trunk portion 10. An overcap for a paper can container, characterized in that a joint recess 26 is provided. 筒状胴部１０と、該筒状胴部１０下端内周面及びその折り返し部１ａ内面にて底板部１５の貼着部１５ａがヒートシールされて取り付けられた底板部１５を備えるボトム部Ｄと、該筒状胴部１０上端の内周面及びその折り返し部１ｂ内面にて天板部１６の貼着部１６ａがヒートシールされて取り付けられた天板部１６を備えるトップ部Ｔとから構成される紙製缶容器Ａのトップ部Ｔを施蓋するオーバーキャップＢにおいて、紙製缶容器Ａのトップ部Ｔの内周面に嵌合する筒状側部２１と、該筒状側部２１の上部に設けた天板部２２とから構成され、該筒状側部２１は、天板部２２側の上部筒状側部２１ａと下部筒状側部２１ｂとからなり、上部筒状側部２１ａと下部筒状側部２１ｂとの境界相当部分には、トップ部Ｔの内周上端面に沿って、リング状に連続又は断続して該下部筒状側部２１ｂ外周面より突出する突起部２１ｃを設け、前記下部筒状側部２１ｂの下端部にはリング状に連続又は断続して突起部２７を設け、前記紙製缶容器Ａのトップ部Ｔの折り返し部１ｂ下端部に設けられた内側凹陥部２８内に、前記下部筒状側部２１ｂ下端部の突起部２７を嵌合可能としたことを特徴とする紙製缶容器用オーバーキャップ。   A bottom part D including a cylindrical body part 10 and a bottom plate part 15 to which the sticking part 15a of the bottom plate part 15 is heat-sealed and attached at the inner peripheral surface of the lower end of the cylindrical body part 10 and the inner surface of the folded part 1a; The top portion T is provided with a top plate portion 16 to which a sticking portion 16a of the top plate portion 16 is attached by heat sealing at the inner peripheral surface of the upper end of the cylindrical body portion 10 and the inner surface of the folded portion 1b. In the overcap B that covers the top portion T of the paper can container A, the cylindrical side portion 21 fitted to the inner peripheral surface of the top portion T of the paper can container A, and the cylindrical side portion 21 The cylindrical side portion 21 is composed of an upper cylindrical side portion 21a and a lower cylindrical side portion 21b on the top plate portion 22 side, and the upper cylindrical side portion 21a. In the portion corresponding to the boundary between the lower cylindrical side portion 21b and the inner peripheral upper end surface of the top portion T, A protrusion 21c that protrudes from the outer peripheral surface of the lower cylindrical side portion 21b is provided continuously or intermittently in a ring shape, and a protrusion 27 is formed continuously or intermittently in a ring shape at the lower end of the lower cylindrical side portion 21b. Provided that the protrusion 27 at the lower end of the lower cylindrical side portion 21b can be fitted into the inner recessed portion 28 provided at the lower end of the folded portion 1b of the top portion T of the paper can container A. An overcap for paper can containers. 請求項４記載の紙製缶容器用オーバーキャップにおいて、前記紙製缶容器Ａのトップ部Ｔの折り返し部１ｂ下端部の内側凹陥部２８が、前記折り返し部１ｂ下端部に沿って、該下端部を断続してスリット状に切り込むことにより切り取りして形成された切取部であることを特徴とする紙製缶容器用オーバーキャップ。   5. The overcap for a paper can container according to claim 4, wherein the inner recessed portion 28 at the lower end portion of the folded portion 1 b of the top portion T of the paper can container A extends along the lower end portion of the folded portion 1 b. An overcap for a paper can container, wherein the overcap for a paper can container is a cut-out portion formed by cutting out and cutting into a slit shape. 請求項４記載の紙製缶容器用オーバーキャップにおいて、前記紙製缶容器Ａのトップ部Ｔの折り返し部１ｂ下端部の内側凹陥部２８が、前記折り返し部１ｂ下端部に沿って、該下端部を断続して凹陥状にプレスすることにより形成された凹陥部であることを特徴とする紙製缶容器用オーバーキャップ。   5. The overcap for a paper can container according to claim 4, wherein the inner recessed portion 28 at the lower end portion of the folded portion 1 b of the top portion T of the paper can container A extends along the lower end portion of the folded portion 1 b. An overcap for a paper can container, characterized in that it is a recessed portion formed by intermittently pressing and pressing into a recessed shape. 請求項４記載の紙製缶容器用オーバーキャップにおいて、前記紙製缶容器Ａのトップ部Ｔの折り返し部１ｂ下端部の内側凹陥部２８が、前記折り返し部１ｂ下端と天板部１６上面との間に形成された間隙部であることを特徴とする紙製缶容器用オーバーキャップ。   5. The overcap for a paper can container according to claim 4, wherein the inner recessed portion 28 at the lower end of the folded portion 1 b of the top portion T of the paper can container A is formed between the lower end of the folded portion 1 b and the top surface of the top plate portion 16. An overcap for a paper can container, characterized in that it is a gap formed between them.
JP2008150353A 2008-06-09 2008-06-09 Overcap for paper can container Expired - Fee Related JP5195050B2 (en)

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KR101240030B1 (en) * 2011-04-04 2013-03-06 석종철 Cover for airtight container
US10582787B2 (en) 2012-08-22 2020-03-10 Ptm Packaging Tools Machinery Pte. Ltd. Paper-based container lids and methods for making the same
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Publication number Priority date Publication date Assignee Title
KR101240030B1 (en) * 2011-04-04 2013-03-06 석종철 Cover for airtight container
US10582787B2 (en) 2012-08-22 2020-03-10 Ptm Packaging Tools Machinery Pte. Ltd. Paper-based container lids and methods for making the same
US11497330B2 (en) 2012-08-22 2022-11-15 Ptm Packaging Tools Machinery Pte. Ltd. Paper-based container lids and methods for making the same
JP2020185749A (en) * 2019-05-16 2020-11-19 凸版印刷株式会社 Cover material, manufacturing method for the same and mold for pulp molding
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CN113840780B (en) * 2019-05-16 2023-11-10 凸版印刷株式会社 Method for producing cover member and pulp molding die for cover member
JP7392286B2 (en) 2019-05-16 2023-12-06 Ｔｏｐｐａｎホールディングス株式会社 Cover material manufacturing method and pulp molding mold

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