JPH0542940A - Lid device for wide mouth container and manufacture thereof - Google Patents
Lid device for wide mouth container and manufacture thereofInfo
- Publication number
- JPH0542940A JPH0542940A JP3194539A JP19453991A JPH0542940A JP H0542940 A JPH0542940 A JP H0542940A JP 3194539 A JP3194539 A JP 3194539A JP 19453991 A JP19453991 A JP 19453991A JP H0542940 A JPH0542940 A JP H0542940A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- closing plate
- gripping piece
- cavity
- synthetic resin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Containers Opened By Tearing Frangible Portions (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、広口容器の口部に対す
る蓋装置において、当該蓋装置の外表面側に設けた摘持
片を引っ張って開封するようにしたいわゆるプルオープ
ン式の蓋装置及びその製造方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lid device for a mouth part of a wide-mouthed container, a so-called pull-open type lid device in which a gripping piece provided on the outer surface side of the lid device is pulled to open. The present invention relates to a manufacturing method thereof.
【０００２】[0002]
【従来の技術】この種の蓋装置として、本願出願人は、
先の実用新案登録出願（実開平２−１２０３４８号）に
おいて、図１５及び図１６に示すように、広口容器１の
口部１ａにかしめ付け又は巻き締め等するようにした嵌
着部３ａを備えた金属板製の蓋体３に、適宜形状の開封
用孔４を穿設すると共に、該開封用孔４を塞ぐための軟
質合成樹脂製の閉塞板体５を一体的に成形し、該閉塞板
体５における内面側のうち前記開封用孔４よりも半径内
側の部位に、当該閉塞板体５に開封部５ａを形成するた
めの弱化線６を、前記開封用孔４の内周縁に沿って形成
し、更に、前記開封部５ａにおける外表面のうち前記弱
化線６に近接した部位に、当該開封部５ａに対する摘持
片７を一体的に連接し、且つ、前記閉塞板体５における
外表面の略全体に、非透湿性等の表装フイルム８を貼着
して成る蓋装置２を提案した。2. Description of the Related Art As a lid device of this type, the applicant of the present invention has
As shown in FIGS. 15 and 16, the utility model registration application (Japanese Utility Model Publication No. 2-120348) is provided with a fitting portion 3a adapted to be caulked or wound around the mouth portion 1a of the wide-mouthed container 1. A lid plate 3 made of a metal plate is provided with an opening hole 4 having an appropriate shape, and a closing plate body 5 made of a soft synthetic resin for closing the opening hole 4 is integrally formed to close the opening hole 4. A weakening line 6 for forming an unsealing portion 5a in the closing plate 5 is provided along the inner peripheral edge of the unsealing hole 4 on the inner surface side of the unsealing plate 4 on the inner side of the unsealing hole 4. Further, the gripping piece 7 for the opening portion 5a is integrally connected to a portion of the outer surface of the opening portion 5a close to the weakening line 6, and the outside of the closing plate body 5 is connected. A lid device 2 formed by sticking a non-moisture permeable outer cover film 8 on substantially the entire surface. It proposed.
【０００３】この先願発明によると、閉塞板体５を弱化
線６に沿って切り裂くことによって開封するもので、米
国特許第４６７４６４９号明細書に記載されているよう
に、合成樹脂製の閉塞板体を、金属板製の蓋体における
開封用孔の内周縁に沿って切り裂くようにしたもの、換
言すると、金属板製の蓋体における開封用孔の内周縁を
閉塞板体に対する切刃に構成したものに比べて、閉塞板
体５に対する内外からの押圧力によって閉塞板体５が切
り裂かれてしまうと言う不測の事態を防止できると共
に、開封後においては、蓋体３の内周縁が合成樹脂製の
閉塞板体５における外周部５ｂにて被包された状態であ
るため、開封孔後における安全性も向上でき、更に、表
装フイルム８を日透湿性に形成することにより、蓋装置
２のガスバリアー性を格段に向上できると共に、表装フ
イルム８に各種の印刷を施すことが可能となって外観を
向上できると言う利点を有する。According to this prior invention, the closure plate 5 is opened by cutting it along the weakening line 6, and as described in US Pat. No. 4,674,649, the closure plate made of synthetic resin is used. Is to be cut along the inner peripheral edge of the opening hole in the lid made of a metal plate, in other words, the inner peripheral edge of the opening hole in the lid made of a metal plate is configured as a cutting blade for the closing plate body. Compared to the above, it is possible to prevent an unexpected situation in which the closing plate body 5 is torn by the pressing force from the inside and outside of the closing plate body 5, and after opening, the inner peripheral edge of the lid body 3 is made of synthetic resin. Since it is in a state of being covered with the outer peripheral portion 5b of the closing plate body 5, the safety after opening the hole can be improved, and further, by forming the cover film 8 to have a moisture vapor permeability, the gas of the lid device 2 can be improved. Barrier property It is possible to remarkably improve has the advantage that can enhance the appearance it is possible to perform various printing mounting film 8.
【０００４】なお、符号９は軟質ゴム等のパッキンであ
る。Reference numeral 9 is a packing made of soft rubber or the like.
【０００５】[0005]
【発明が解決しようとする課題】ところが、この先願発
明では、摘持片７と表装フイルム８の外表面との間に隙
間を空けた状態にしているため、運搬や広口容器の密封
工程等において摘持片７に物が引っ掛かることがあり、
取扱いが不便であると言う問題があった。また、この蓋
装置２の製造に際して、摘持片７が大きく引き起こされ
るため、摘持片７の付け根個所７ａにおける弱化線６の
個所が突き破られる虞があった。However, in this prior invention, since there is a gap between the gripping piece 7 and the outer surface of the cover film 8, it is possible to carry out the process of carrying or sealing a wide-mouthed container. Things may get caught in the gripping piece 7,
There was a problem that it was inconvenient to handle. Further, when the lid device 2 is manufactured, since the gripping piece 7 is largely caused, there is a possibility that the weakening line 6 at the root portion 7a of the gripping piece 7 may be pierced.
【０００６】つまり、この蓋装置２は、図１７〜図１９
に示すように、蓋体３を、閉塞板体５を成形するための
第１キャビティ１０を備えた第１金型１１と、摘持片７
を成形するための第２キャビティ１３を備え、且つ、第
２キャビティ１３の大部分を覆う板体１４を出没自在に
装着した第２金型１５とにて挟み付けると共に、蓋体３
と第２金型１５との間に表装フイルム８を配設し、その
状態で、第１金型１１における第１キャビティ１０に、
スプルー１６から溶融合成樹脂１７を注入して、閉塞板
体５の成形をすると同時に、溶融合成樹脂１７が表装フ
イルム８を突き破ることを利用して、摘持片９を成形
し、合成樹脂が固まってから、両金型１０，１５を離反
すると共に、板体１４を突出させて、蓋装置２を板体１
４から引き離すと言う工程にて行われる。That is, the lid device 2 is shown in FIGS.
As shown in FIG. 3, the lid body 3 includes a first mold 11 having a first cavity 10 for molding the closing plate body 5, and a holding piece 7.
And a second mold 15 having a second cavity 13 for molding, and a plate body 14 that covers most of the second cavity 13 is inserted and retracted, and a lid 3 is formed.
The exterior film 8 is disposed between the first mold 11 and the second mold 15, and in that state, in the first cavity 10 of the first mold 11,
The molten synthetic resin 17 is injected from the sprue 16 to mold the closing plate body 5, and at the same time, the molten synthetic resin 17 breaks through the mounting film 8 to mold the gripping piece 9 so that the synthetic resin is solidified. Then, the molds 10 and 15 are separated from each other, and the plate body 14 is projected so that the lid device 2 is attached to the plate body 1.
It is carried out in the process of separating from 4.
【０００７】その場合、板体１４から蓋装置２を引き離
すに際して、図１９に示すように、摘持片７が大きく引
き起こされるため、摘持片７の付け根個所７ａで弱化線
６が強く押圧され、このため、弱化線６及び表装フイル
ム８が突き破られ、不良品が発生する虞が生じるのであ
った。本発明の第１の目的は、これら取扱いの問題及び
不良品の発生の問題を解消した蓋装置を提供することに
あり、また、本発明の第２の目的は、前記第１の目的を
達成した蓋装置の製造に適した製法を提供することにあ
る。In that case, when the lid device 2 is pulled away from the plate body 14, as shown in FIG. 19, the gripping piece 7 is largely raised, so that the weakening line 6 is strongly pressed at the base portion 7a of the gripping piece 7. As a result, the weakening line 6 and the cover film 8 may be breached, and a defective product may occur. A first object of the present invention is to provide a lid device which solves these problems of handling and the problem of generation of defective products, and the second object of the present invention achieves the first object. It is to provide a manufacturing method suitable for manufacturing the lid device.
【０００８】[0008]
【課題を解決するための手段】第１の目的を達成するた
め本発明は、請求項１に記載したように、広口容器の口
部に嵌着する金属板製の蓋体に、適宜形状の開封用孔を
穿設すると共に、該開封用孔を塞ぐための軟質合成樹脂
製の閉塞板体を一体的に成形し、該閉塞板体における内
面側のうち前記開封用孔よりも半径内側の部位に、当該
閉塞板体に開封部を形成するための弱化線を、前記開封
用孔の内周縁に沿って形成し、更に、前記開封部におけ
る外表面のうち前記弱化線に近接した部位に、当該開封
部に対する摘持片を一体的に連接し、且つ、前記閉塞板
体における外表面の略全体に、非透湿性の表装フイルム
を貼着して成る蓋装置において、前記摘持片を前記表装
フイルムの外表面に密接する構成にした。In order to achieve the first object of the present invention, as described in claim 1, a metal plate lid fitted to the mouth of a wide-mouthed container has an appropriate shape. A hole for opening is opened, and a closing plate made of a soft synthetic resin for closing the opening for opening is integrally formed, and the inner side of the closing plate has a radius inner side than the opening for opening. A weakening line for forming an opening portion in the closing plate body is formed along the inner peripheral edge of the opening hole, and further, in a portion close to the weakening line on the outer surface of the opening portion. In a lid device in which a gripping piece is integrally connected to the opening portion and a non-moisture impermeable cover film is attached to substantially the entire outer surface of the closing plate, the gripping piece is The outer film of the outer cover film is closely attached to the outer film.
【０００９】また、第２の目的を達成する手段として、
蓋体を、前記閉塞板体を成形するための第１キャビティ
を備えた第１金型と、前記摘持片を成形するための第２
キャビティを備えた第２金型とにて挟み付けると共に、
前記表装フイルムを、前記蓋体と第２金型との間に配設
し、この状態で、前記第１金型における第１キャビティ
に対して溶融合成樹脂を注入するようにした蓋装置の製
造方法において、前記表装フイルムにおける外表面のう
ち少なくとも前記摘持片が接する部位に、前記溶融合成
樹脂が当該表装フイルムに融着することを阻止する処理
を施す構成にした。As means for achieving the second object,
A lid, a first mold having a first cavity for molding the closing plate, and a second mold for molding the gripping piece.
While sandwiching it with the second mold equipped with the cavity,
Manufacture of a lid device in which the cover film is arranged between the lid and a second mold, and in this state, molten synthetic resin is injected into the first cavity of the first mold. In the method, a treatment for preventing the molten synthetic resin from being fused to the outer covering film is applied to at least a portion of the outer surface of the outer covering film which is in contact with the holding piece.
【００１０】[0010]
【発明の作用・効果】請求項１の構成にすると、摘持片
が表装フイルムに密接していることにより、摘持片に対
して物が引っ掛かることを格段に低減できるから、運搬
や広口容器の密封工程等における取扱いを容易にするこ
とができる。また、閉塞板体及び摘持片の成形と、閉塞
板体に対する表装フイルムの貼着とを、閉塞板体を成形
するための第１キャビティを備えた第１金型と、摘持片
を形成するための第２キャビティを備えた第２金型とを
使用して行うにおいて、第２金型における第２キャビテ
ィは、表装フイルムに向けて開口するように形成すれば
足り、従来のような板体を必要としないから、金型の構
造を簡単にすることができるのである。According to the structure of the present invention, since the gripping piece is in close contact with the cover film, it is possible to remarkably reduce the possibility that an object is caught on the gripping piece. Can be easily handled in the sealing step and the like. In addition, forming a closing plate and a holding piece, and attaching a cover film to the closing plate, forming a first mold having a first cavity for forming the closing plate, and forming a holding piece When using a second mold having a second cavity for performing the operation, it is sufficient that the second cavity in the second mold is formed so as to open toward the cover film, and a plate as in the related art is used. Since no body is required, the mold structure can be simplified.
【００１１】しかも、第２金型における第２キャビティ
が表装フイルムに向けて開口していることにより、摘持
片を大きく引き起こす現象を生じることなく、摘持片を
第２金型の第２キャビティから抜き取ることができるか
ら、型抜きに際して閉塞板体の弱化線及び表装フイルム
が摘持片の付け根個所で突き破られることはなく、従っ
て、密封不能な不良品が発生する率を格段に低減できる
のである。Moreover, since the second cavity of the second mold is opened toward the mounting film, the gripping piece is moved to the second cavity of the second mold without causing a phenomenon that the gripping piece is largely caused. Since it can be removed from the mold, the weakening line of the closing plate and the cover film are not pierced at the base of the gripping piece at the time of mold release, and therefore the rate of defective products that cannot be sealed can be significantly reduced. Of.
【００１２】また、請求項２の構成にすると、第２金型
に、摘持片を形成するための第２キャビティを穿設し
て、この第２金型における第２キャビティを表装フイル
ムに向けて開口した状態にて、第２金型における第２キ
ャビティに、表装フイルムを突き破って第１金型におけ
る第１キャビティから溶融合成樹脂を充満させて、摘持
片を成形するにおいて、摘持片が表装フイルムに貼着す
ることはないから、成形後における摘持片を表装フイル
ムから引き起こすことができる状態にて摘持片を成形で
きる。According to the second aspect of the invention, the second mold is provided with the second cavity for forming the gripping piece, and the second cavity of the second mold is directed to the cover film. In the state where the holding piece is opened, the second cavity in the second mold is pierced through the cover film and filled with the molten synthetic resin from the first cavity in the first mold to form the holding piece. Since it does not adhere to the cover film, the gripping piece can be molded in a state where the gripping piece after molding can be raised from the cover film.
【００１３】従って請求項２の構成によると、一対の金
型を使用して閉塞板体と摘持片との成形及び閉塞板体に
対する表装フイルムの貼着とを行う方法により、摘持片
を、表装フイルムに貼着することなく密接した状態に成
形することができるから、取扱いが容易でしかも不良品
の発生率を低減できる形態の蓋装置を、安価に製造でき
ると言う効果を有する。 〔実施例〕次に、本発明の実施例を図面に基づいて説明
する。Therefore, according to the second aspect of the invention, the gripping piece is formed by a method of forming the closing plate and the holding piece using a pair of molds and adhering the cover film to the closing plate. Since it can be formed in a close contact state without sticking to the cover film, it has an effect that a lid device in a form that is easy to handle and can reduce the incidence of defective products can be manufactured at low cost. [Embodiment] Next, an embodiment of the present invention will be described with reference to the drawings.
【００１４】図１〜図３は、請求項１に対応した第１の
実施例を示すもので、この蓋装置２は、基本的な構成は
従来と同様であり、このため、各構成要素は従来と同じ
符号で示している。しかして、摘持片７を表装フイルム
８の外表面に密接させ、且つ、閉塞板体５と摘持片７と
が摘持片７の付け根個所７ａのみにおいて平面視で重な
り合うように、閉塞板体５における開封部５ａのうち、
平面視で摘持片７のリング部と重なり合う部位に環状の
切り抜き部５ｃを形成している。1 to 3 show a first embodiment corresponding to the first aspect of the present invention, and the lid device 2 has the same basic construction as that of the conventional one. It is indicated by the same symbol as the conventional one. Then, the gripping piece 7 is brought into close contact with the outer surface of the covering film 8, and the closing plate 5 and the gripping piece 7 are overlapped in a plan view only at the root portion 7a of the holding piece 7. Of the unsealed portion 5a of the body 5,
An annular cutout portion 5c is formed at a portion overlapping with the ring portion of the gripping piece 7 in a plan view.
【００１５】前記表装フイルム８は、アルミ箔等の金属
箔又は合成樹脂表装フイルムにて単層に形成するとか、
図３に示すように、金属箔等の芯材８ａに表面材８ｂと
裏面材８ｃとを貼着して積層体に形成するなど、その素
材や構造を自由に選択することができる。このとき、例
えば、閉塞板体５及び摘持片７をポリプロピレンにて形
成する一方、表装フイルム８における表面材８ｂをナイ
ロン製に、表装フイルム８における裏面材をポリプロピ
レン製に各々形成するとか、或いは、表装フイルム８の
表面のうち少なくとも摘持片７が重なる部位に、閉塞板
体５の素材となる合成樹脂が溶融状態から固まるに際し
て接着することを阻害するようにした薬剤等を塗布する
とかすることにより、摘持片７が表装フイルム８に接着
せず、しかも、表装フイルム８が閉塞板体５に貼着する
ようにする。The cover film 8 is formed of a single layer of metal foil such as aluminum foil or synthetic resin cover film,
As shown in FIG. 3, a material and a structure thereof can be freely selected, for example, a surface material 8b and a back surface material 8c are attached to a core material 8a such as a metal foil to form a laminated body. At this time, for example, the closing plate body 5 and the gripping piece 7 are formed of polypropylene, while the surface material 8b of the exterior mounting film 8 is made of nylon and the back surface material of the exterior mounting film 8 is made of polypropylene. It is assumed that a chemical or the like is applied to at least a portion of the surface of the cover film 8 where the gripping piece 7 overlaps so as to prevent the synthetic resin, which is the material of the closing plate body 5, from adhering when it solidifies from a molten state. As a result, the holding piece 7 does not adhere to the cover film 8 and the cover film 8 is attached to the closing plate 5.
【００１６】このように構成すると、摘持片７が表装フ
イルム８に密接していることにより、摘持片７に対して
物が引っ掛かることを格段に低減して、運搬等の工程に
おける取扱いを容易にすることができる。図４〜図１１
に示すのは、前記蓋装置２の製造に好適な製法及び製造
装置を示す請求項２に対応した第２の実施例である。According to this structure, since the gripping piece 7 is in close contact with the outer mounting film 8, it is possible to significantly reduce the possibility that an object is caught on the gripping piece 7, and to handle it in a process such as transportation. Can be easy. 4 to 11
Shown in is a second embodiment corresponding to claim 2 showing a manufacturing method and a manufacturing apparatus suitable for manufacturing the lid device 2.
【００１７】これらの図において符号２０は、閉塞板体
５を成形するための第１キャビティ２１を形成した第１
金型を示し、また、符号２２は、表装フイルム８と略同
じ平面形状の凹所２３を形成した第２金型を示し、この
第２金型２２に、摘持片７を形成するための第２キャビ
ティ２４を、その全体が第１金型２０に向けて開口する
ようして形成する。In these drawings, reference numeral 20 is a first forming a first cavity 21 for molding the closing plate body 5.
Reference numeral 22 denotes a mold, and reference numeral 22 denotes a second mold in which a recess 23 having substantially the same plane shape as the cover film 8 is formed. The second mold 22 is provided with a holding piece 7 for forming the holding piece 7. The second cavity 24 is formed so that the whole is opened toward the first mold 20.
【００１８】前記第１金型２０には、弱化線６を形成す
るための断面山形の環状突起２５を形成しており、第１
キャビティ２１のうち環状突起２５よりも内側の部位
に、前記第２金型２２における第２キャビティ２４の大
部分と重なり合うようにした環状の補助突起２６を形成
することにより、第２金型２２における第２キャビティ
２４が、当該第２金型２２の外周寄り部位２４ａの個所
のみにおいて第１キャビティ２１と重なり合うように構
成し、前記補助突起２６で囲われた部位を補助キャビテ
ィ２７として、この補助キャビティ２７及び前記第１キ
ャビティ２１に、各々スプルー２８，２９を連通してい
る。The first die 20 is formed with an annular projection 25 having a chevron cross section for forming the weakening line 6.
By forming an annular auxiliary protrusion 26 in the cavity 21 inside the annular protrusion 25 so as to overlap most of the second cavity 24 in the second die 22, The second cavity 24 is configured so as to overlap with the first cavity 21 only at the outer peripheral portion 24a of the second mold 22, and the portion surrounded by the auxiliary protrusion 26 serves as an auxiliary cavity 27. Sprues 28 and 29 are connected to 27 and the first cavity 21, respectively.
【００１９】そして、図４に示すように、表装フイルム
８を、蓋体３の外面に接着剤にて仮接着しておくか、又
は、図４に一点鎖線で示すように、第２金型２２におけ
る凹所２３に予め真空吸着等の適宜手段で配設しておく
かして、図８及び図９に示すように、蓋体３の水平部３
ｅを、両金型２０，２２の外周部２０ａ，２２ａにて挟
み付け、その状態で、第１金型２０における第１キャビ
ティ２１及び補助キャビティ２７に、スプルー２９，２
８から溶融合成樹脂３０を注入する。Then, as shown in FIG. 4, the cover film 8 is temporarily adhered to the outer surface of the lid body 3 with an adhesive, or as shown by the alternate long and short dash line in FIG. As shown in FIG. 8 and FIG. 9, the horizontal portion 3 of the lid 3 may be provided by previously disposing it in the recess 23 of 22 by an appropriate means such as vacuum suction.
e is sandwiched between the outer peripheral portions 20a and 22a of both molds 20 and 22, and in that state, the sprue 29, 2
The molten synthetic resin 30 is injected from the position 8.
【００２０】すると、第１キャビティ２１及び補助キャ
ビティ２６に溶融合成樹脂３０が充満することにより、
閉塞板体５の成形と閉塞板体５に対する表装フイルム８
の貼着とが行われ、且つ、第１キャビティ２１に充満し
た溶融合成樹脂３０が、第２金型２２における第２キャ
ビティ２４の外周寄り部位２４ａの個所において、表装
フイルム８を突き破って第２キャビティ２４に充満する
ことにより、摘持片７の成形が行われる。Then, the molten synthetic resin 30 fills the first cavity 21 and the auxiliary cavity 26,
Molding of the closing plate 5 and a mounting film 8 for the closing plate 5
And the molten synthetic resin 30 filled in the first cavity 21 pierces the cover film 8 at a portion of the second mold 22 near the outer periphery of the second cavity 24 and penetrates into the second mounting film 8. The holding piece 7 is molded by filling the cavity 24.
【００２１】そして、図１０に示すように、合成樹脂が
固まってから、両金型２０，２２を離反させて、蓋装置
２を両金型２０，２２から型抜きすることにより、第１
の実施例における蓋装置２を得ることができる。このよ
うに、摘持片７を表装フイルム８に密接したことによ
り、第２金型２２には、第１金型２１の方向に開口した
第２キャビティ２４を設ければ足り、従来のよう第２金
型２２に板体を設ける必要はないから、成形装置を簡単
にすることができるのであり、しかも、従来のような板
体が不要であることにより、蓋装置２を型抜きするに際
して、摘持片７が強く引き起こされることはないから、
表装フイルム２を第２金型２２から型抜きするに際し
て、摘持片７の付け根個所７ａにおいて表装フイルム８
及び弱化線６が突き破られることはないのである。Then, as shown in FIG. 10, after the synthetic resin is solidified, the molds 20 and 22 are separated from each other, and the lid device 2 is removed from the molds 20 and 22 to remove the first mold.
The lid device 2 in the embodiment can be obtained. As described above, since the gripping piece 7 is brought into close contact with the cover film 8, it is sufficient to provide the second mold 22 with the second cavity 24 that opens toward the first mold 21, which is the same as the conventional case. (2) Since it is not necessary to provide the plate body on the mold 22, the molding apparatus can be simplified. Moreover, since the plate body as in the conventional case is not required, when the lid device 2 is die-cut, Since the gripping piece 7 is not strongly triggered,
When the cover film 2 is removed from the second mold 22, the cover film 8 is placed at the base point 7 a of the holding piece 7.
And the weakening line 6 is not pierced.
【００２２】また、表装フイルム８の外表面に、溶融合
成樹脂３０が融着しないような処理を施しているから、
単に、両金型２０，２２にて挟み付けて第１キャビティ
２１及び補助キャビティ２７に溶融合成樹脂３０を注入
するだけの構成でありながら、摘持片７を、表装フイル
ム８に対して貼着しない状態に形成することができ、第
１実施例における蓋装置２を、至極容易且つ安価に製造
できるのである。Further, since the outer surface of the cover film 8 is treated so that the molten synthetic resin 30 is not fused,
The gripping piece 7 is attached to the cover film 8 while it is simply sandwiched between the molds 20 and 22 and the molten synthetic resin 30 is injected into the first cavity 21 and the auxiliary cavity 27. The lid device 2 in the first embodiment can be manufactured in an extremely easy and inexpensive manner.
【００２３】なお、蓋体３の内周縁に断面横向きＵ字状
等の係止縁部３ａを形成した場合には、図１１に示すよ
うに、閉塞板体５及び摘持片７を成形した後において、
蓋体３の内外両側から一対の押圧体３１，３２にて挟圧
することにより、係止縁部３ｃを潰し変形すると、係止
縁部３ｃと閉塞板体５の外周部５ｂとが強く密着するた
め、ガスバリアー性をより向上できる。When the locking edge portion 3a having a U-shaped lateral cross section is formed on the inner peripheral edge of the lid body 3, the closing plate body 5 and the gripping piece 7 are molded as shown in FIG. Later
When the locking edge portion 3c is crushed and deformed by being pinched by the pair of pressing bodies 31 and 32 from both inside and outside of the lid body 3, the locking edge portion 3c and the outer peripheral portion 5b of the closing plate body 5 are strongly adhered to each other. Therefore, the gas barrier property can be further improved.
【００２４】図１２〜１４に示すのは、第３の実施例で
あり、この実施例では、表装フイルム８を、溶融合成樹
脂３０の圧力によっては突き破れないような強度に形成
する一方、第１金型２０における第１キャビティ２１
を、環状突起２５の内側の全体にわたって広がるように
形成し、更に、第１金型２０に、第２金型２２における
第２キャビティ２４の外周寄り部位２４ａに向けて突出
する針状体３３を設け、この針状体３３にて表装フイル
ム８を突き破った個所においてのみ、溶融合成樹脂３０
が第２キャビティ２４に充満するようにしたものであ
る。FIGS. 12 to 14 show a third embodiment. In this embodiment, the cover film 8 is formed to have a strength so as not to be broken by the pressure of the molten synthetic resin 30. First cavity 21 in one mold 20
Is formed so as to spread over the entire inside of the annular protrusion 25, and further, a needle-shaped body 33 projecting toward the outer peripheral portion 24a of the second cavity 24 in the second mold 22 is provided in the first mold 20. The molten synthetic resin 30 is provided only at the position where the needle-shaped body 33 breaks through the cover film 8.
Is to fill the second cavity 24.
【００２５】この第３の実施例によると、図１４に示す
ように、閉塞板体５の開封部５ａを表装フイルム８の内
面の全体にわたって広がった状態に形成することができ
る。なお、この実施例では、閉塞板体５における開封部
５ａの外周縁に、環状の補強突起５ｄを形成して、開封
部５ａにおける外周縁の剛性を向上することにより、摘
持片７を引っ張るに際して弱化線６に応力が集中するよ
うにしており、また、第１キャビティ２１に対するスプ
ルー２９は、針状体３３の近傍に設けている。According to the third embodiment, as shown in FIG. 14, the opening portion 5a of the closing plate 5 can be formed so as to spread over the entire inner surface of the cover film 8. In this embodiment, an annular reinforcing protrusion 5d is formed on the outer peripheral edge of the unsealing portion 5a of the closing plate 5 to improve the rigidity of the outer peripheral edge of the unsealing portion 5a, thereby pulling the gripping piece 7. At this time, stress is concentrated on the weakening line 6, and the sprue 29 for the first cavity 21 is provided near the needle-shaped body 33.
【００２６】本発明における摘持片の形態はリング状に
限らず、Ｔ字状等の他の形態であっても良いことは言う
までもない。Needless to say, the shape of the gripping piece in the present invention is not limited to the ring shape, and may be another shape such as a T-shape.
【図１】第１の実施例における蓋装置の断面図である。FIG. 1 is a cross-sectional view of a lid device according to a first embodiment.
【図２】図１の開封状態を示す断面図である。FIG. 2 is a cross-sectional view showing an opened state of FIG.
【図３】表装フイルムの拡大断面図である。FIG. 3 is an enlarged cross-sectional view of a cover film.
【図４】請求項２に対応した第２の実施例の工程を示す
図である。FIG. 4 is a diagram showing a process of a second embodiment corresponding to claim 2;
【図５】図４のＶ−Ｖ視底面図である。5 is a bottom view taken along line VV of FIG. 4. FIG.
【図６】図４のVI−VI視平面図である。6 is a plan view taken along line VI-VI of FIG.
【図７】第１金型の部分斜視図である。FIG. 7 is a partial perspective view of a first mold.
【図８】蓋体を金型にて挟み付けた状態の断面図であ
る。FIG. 8 is a cross-sectional view of a state in which the lid body is sandwiched by molds.
【図９】成形状態を示す断面図である。FIG. 9 is a cross-sectional view showing a molded state.
【図１０】型抜き状態を示す図である。FIG. 10 is a diagram showing a die-cutting state.
【図１１】金型から取り出した蓋装置の断面図である。FIG. 11 is a cross-sectional view of the lid device taken out from the mold.
【図１２】第３の実施例に係る蓋装置の製法を示す要部
断面図である。FIG. 12 is a cross-sectional view of essential parts showing a method for manufacturing a lid device according to a third embodiment.
【図１３】図１２における第１金型の要部平面図であ
る。FIG. 13 is a plan view of an essential part of the first mold in FIG.
【図１４】第３の実施例における蓋装置の断面図であ
る。FIG. 14 is a sectional view of a lid device according to a third embodiment.
【図１５】従来の蓋装置の斜視図である。FIG. 15 is a perspective view of a conventional lid device.
【図１６】図１５の開封状態を示す図である。16 is a diagram showing an opened state of FIG.
【図１７】従来の製法を示す図である。FIG. 17 is a diagram showing a conventional manufacturing method.
【図１８】従来の製法を示す図である。FIG. 18 is a diagram showing a conventional manufacturing method.
【図１９】従来の製法を示す図である。FIG. 19 is a diagram showing a conventional manufacturing method.
１ 広口容器 ２ 蓋装置 ３ 蓋体 ３ａ 嵌着部 ４ 開封用孔 ５ 閉塞板体 ５ａ 開封部 ６ 弱化線 ８ 表装フイルム ２０ 第１金型 ２１ 第１キャビティ ２２ 第２金型 ２４ 第２キャビティ ３０ 溶融合成樹脂 1 Wide Mouth Container 2 Lid Device 3 Lid 3a Fitting Part 4 Opening Hole 5 Closing Plate 5a Unsealing Part 6 Weakening Line 8 Covering Film 20 First Mold 21 First Cavity 22 Second Mold 24 Second Cavity 30 Melting Synthetic resin
Claims (2)
に、適宜形状の開封用孔を穿設すると共に、該開封用孔
を塞ぐための軟質合成樹脂製の閉塞板体を一体的に成形
し、該閉塞板体における内面側のうち前記開封用孔より
も半径内側の部位に、当該閉塞板体に開封部を形成する
ための弱化線を、前記開封用孔の内周縁に沿って形成
し、更に、前記開封部における外表面のうち前記弱化線
に近接した部位に、当該開封部に対する摘持片を一体的
に連接し、且つ、前記閉塞板体における外表面の略全体
に、表装フイルムを貼着して成る蓋装置において、前記
摘持片を前記表装フイルムの外表面に密接したことを特
徴とする広口容器用蓋装置。1. A closing plate body made of a soft synthetic resin for forming an opening hole of an appropriate shape in a lid body made of a metal plate fitted into the mouth portion of a wide-mouthed container and closing the opening hole. Is integrally molded, and a weakening line for forming an opening portion in the closing plate body is formed in a portion of the inner surface side of the closing plate body that is radially inside the opening hole. It is formed along the peripheral edge, and further, a gripping piece for the opening part is integrally connected to a portion of the outer surface of the opening part close to the weakening line, and the outer surface of the closing plate body is A lid device for a wide-mouth container, comprising a cover device formed by adhering a cover film to substantially the whole of the cover device, wherein the gripping piece is in close contact with the outer surface of the cover film.
の第１キャビティを備えた第１金型と、前記摘持片を成
形するための第２キャビティを備えた第２金型とにて挟
み付けると共に、前記表装フイルムを、前記蓋体と第２
金型との間に配設し、この状態で、前記第１金型におけ
る第１キャビティに対して溶融合成樹脂を注入するよう
にした「請求項１」における蓋装置の製造方法におい
て、前記表装フイルムにおける外表面のうち少なくとも
前記摘持片が接する部位に、前記溶融合成樹脂が当該表
装フイルムに融着することを阻止する処理を施したこと
を特徴とする広口容器用蓋装置の製造方法。2. A first mold having a first cavity for molding the closure plate, and a second mold having a second cavity for molding the holding piece. It is sandwiched between and and the cover film is attached to the cover body and the second cover.
The method for manufacturing a lid device according to claim 1, wherein the cover device is arranged between the mold and the molten synthetic resin is injected into the first cavity of the first mold in this state. A method for manufacturing a lid device for a wide-mouth container, characterized in that at least a portion of the outer surface of the film, which comes into contact with the gripping piece, is treated to prevent the molten synthetic resin from being fused to the covering film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3194539A JPH0542940A (en) | 1991-08-02 | 1991-08-02 | Lid device for wide mouth container and manufacture thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3194539A JPH0542940A (en) | 1991-08-02 | 1991-08-02 | Lid device for wide mouth container and manufacture thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0542940A true JPH0542940A (en) | 1993-02-23 |
Family
ID=16326219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3194539A Pending JPH0542940A (en) | 1991-08-02 | 1991-08-02 | Lid device for wide mouth container and manufacture thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0542940A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021527003A (en) * | 2018-06-12 | 2021-10-11 | テトラ ラバル ホールディングス アンド ファイナンス エス エイ | An opening device for a package adapted to contain a product that can be poured, and a package with an opening device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58187095A (en) * | 1982-04-27 | 1983-11-01 | Toshiba Corp | Controlling device of remote monitor |
| JPS61287540A (en) * | 1985-06-11 | 1986-12-17 | 昭和電工株式会社 | Cover for can-like vessel |
-
1991
- 1991-08-02 JP JP3194539A patent/JPH0542940A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58187095A (en) * | 1982-04-27 | 1983-11-01 | Toshiba Corp | Controlling device of remote monitor |
| JPS61287540A (en) * | 1985-06-11 | 1986-12-17 | 昭和電工株式会社 | Cover for can-like vessel |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021527003A (en) * | 2018-06-12 | 2021-10-11 | テトラ ラバル ホールディングス アンド ファイナンス エス エイ | An opening device for a package adapted to contain a product that can be poured, and a package with an opening device |
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