JPH1024955A - Easy-to-open container lid - Google Patents
Easy-to-open container lidInfo
- Publication number
- JPH1024955A JPH1024955A JP8181726A JP18172696A JPH1024955A JP H1024955 A JPH1024955 A JP H1024955A JP 8181726 A JP8181726 A JP 8181726A JP 18172696 A JP18172696 A JP 18172696A JP H1024955 A JPH1024955 A JP H1024955A
- Authority
- JP
- Japan
- Prior art keywords
- piece
- base
- container lid
- extension
- extension piece
- 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
- Closures For Containers (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、簡易開封型容器
蓋、更に詳しくは天面壁、この天面壁の周縁から垂下す
るスカート壁、及びスカート壁の下端から延出する延出
片を含む金属薄板製本体を具備し、延出片はリング形状
部とこのリング形状部をスカート壁の下縁に接続してい
る基部とを有する形態の簡易開封型容器蓋に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simple-opening-type container lid, and more particularly, to a metal thin plate including a top wall, a skirt wall hanging from the periphery of the top wall, and an extension piece extending from a lower end of the skirt wall. The present invention relates to a simple-opening-type container lid having a main body made of a material and having an extending piece having a ring-shaped portion and a base connecting the ring-shaped portion to a lower edge of a skirt wall.
【０００２】[0002]
【従来の技術】実公平６−２９１６号公報には、天面
壁、この天面壁の周縁から垂下するスカート壁及びスカ
ート壁の下端から延出する延出片を含む金属薄板製本体
を具備する簡易開封型容器蓋が開示されている。延出片
はリング形状部とこのリング形状部をスカート壁の下端
に接続している基部とを有する。スカート壁及び天面壁
には、延出片の両側縁に対応せしめて配置された一対の
破断ラインが形成されている。天面壁の内面には適宜の
合成樹脂から形成されているシール部材が配設されてい
る。2. Description of the Related Art Japanese Utility Model Publication No. Hei 6-2916 discloses a simple structure including a top wall, a skirt wall hanging down from the periphery of the top wall, and a thin metal plate body including an extension piece extending from a lower end of the skirt wall. An openable container lid is disclosed. The extension piece has a ring-shaped portion and a base connecting the ring-shaped portion to the lower end of the skirt wall. A pair of break lines are formed on the skirt wall and the top wall so as to correspond to both side edges of the extension piece. A seal member formed of an appropriate synthetic resin is disposed on the inner surface of the top wall.
【０００３】上述した形態の簡易開封型容器蓋は、ガラ
ス、合成樹脂或いは金属薄板から形成することができる
容器の口頸部に被嵌し、スカート壁の下端部を変形せし
めて口頸部に形成されている環状係止あご部に係止せし
めることによって、容器の口頸部に装着され、口頸部を
密封する。口頸部を開封する際には、延出片のリング形
状部に指を掛けて延出片を所要方向に引っ張って（更に
詳しくは、最初は水平方向に、次いで上方に引っ張っ
て）一対の破断ラインを破断せしめて、容器蓋の全体を
口頸部から離脱せしめる。[0003] The simple-opening-type container lid of the above-mentioned type is fitted on the mouth and neck of a container made of glass, synthetic resin or metal sheet, and the lower end of the skirt wall is deformed to form the mouth and neck. It is attached to the mouth and neck of the container by being locked to the formed annular locking jaw, and seals the mouth and neck. When opening the mouth and neck, put a finger on the ring-shaped part of the extension piece and pull the extension piece in a required direction (more specifically, first, pull it horizontally and then upward) to form a pair of The breaking line is broken, and the entire container lid is detached from the mouth and neck.
【０００４】特開昭５７−１７８７３０号公報及び特開
昭６３−１３８９５７号公報には、金属薄板製本体と合
成樹脂製延出片とから構成された簡易開封型容器蓋が開
示されている。金属薄板製本体は天面壁、この天面壁の
周縁から垂下するスカート壁、及びスカート壁から延出
する比較的短い連結片を有し、スカート壁及び天面壁に
は連結片の両側縁に対応せしめて配置された一対の破断
ラインが形成されている。合成樹脂製延出片は金属製本
体の連結片に連結された基部とリング形状部とを有す
る。かような容器蓋は、延出片が合成樹脂から形成され
ている点において上記実公平６−２９１６号公報に開示
されている容器蓋と異なるが、容器の口頸部への装着様
式及び口頸部からの離脱様式は、上記実公平６−２９１
６号公報に開示されている容器蓋と実質上同一である。JP-A-57-178730 and JP-A-63-138957 disclose a simple-opening-type container lid composed of a metal sheet main body and a synthetic resin extension piece. The sheet metal body has a top wall, a skirt wall hanging down from the periphery of the top wall, and a relatively short connecting piece extending from the skirt wall. The skirt wall and the top wall correspond to both side edges of the connecting piece. And a pair of break lines arranged in a vertical direction. The synthetic resin extension piece has a base connected to the connection piece of the metal body and a ring-shaped portion. Such a container lid is different from the container lid disclosed in Japanese Utility Model Publication No. Hei 6-2916 in that the extension piece is formed of a synthetic resin. The mode of withdrawal from the neck is described in Jitsuhei 6-291 described above.
The container lid is substantially the same as the container lid disclosed in Japanese Patent Publication No. 6 (1994).
【０００５】[0005]
【発明が解決しようとする課題】上述したとおりの形態
の簡易開封型容器蓋においては、上記特開昭６３−１３
８９５７号公報に開示されている如く、容器の口頸部か
ら容器蓋を離脱せしめて口頸部を開封する開封操作を充
分容易に遂行することができるようになすために、延出
片の基部にその表面から***する***部を形成し、リン
グ形状部に指を掛けて延出部を上方に移動せしめた際に
上記***部がスカート壁の外周面に当接せしめられ、こ
れによって基部で延出部が急激に折り曲げられてしまう
ことを回避すると共に、***部を支点とする所謂てこ作
用によってスカート壁及び天面壁が容易に所要とおりに
変形せしめられるようになすことが重要である。The simple-opening-type container lid of the above-mentioned type is disclosed in Japanese Patent Application Laid-Open No. 63-13 / 1988.
As disclosed in Japanese Patent Application Laid-Open No. 8957/8957, in order to allow the opening operation of opening the mouth and neck part by detaching the container lid from the mouth and neck part of the container and performing the opening operation sufficiently easily, A raised portion is formed from the surface of the skirt wall, and when the extension is moved upward by placing a finger on the ring-shaped portion, the raised portion is brought into contact with the outer peripheral surface of the skirt wall. It is important to prevent the extension from being sharply bent and to allow the skirt wall and the top wall to be easily deformed as required by a so-called leverage function with the ridge as a fulcrum.
【０００６】然るに、延出片も金属薄板から形成されて
いる形態の従来の簡易開封型容器蓋においては、所要隆
起高さを有する***部を形成することが不可能ではない
にしても著しく困難である。充分な***高さを有する隆
起部を形成するためには、金属薄板に相当量の絞り加工
を加えることが必要であり、金属薄板に亀裂を発生せし
めてしまう傾向がある。また、所要高さの***部を形成
することができたとしても、延出片を上部に移動せしめ
た時に***部が変形せしめられて所要機能をはたすこと
ができなくなる傾向がある。However, it is extremely difficult, if not impossible, to form a protruding portion having a required protruding height in a conventional easy-open container lid in which the extending piece is also formed of a thin metal plate. It is. In order to form a raised portion having a sufficient raised height, it is necessary to apply a considerable amount of drawing to the sheet metal, and there is a tendency for the sheet metal to crack. Further, even if a protruding portion having a required height can be formed, the protruding portion tends to be deformed when the extension piece is moved to the upper portion, so that a required function cannot be performed.
【０００７】一方、延出片を合成樹脂から形成する場合
には、所要***高さの***部を充分容易に形成すること
ができる。しかしながら、延出片を合成樹脂から形成す
る場合には、次のとおりの別個の問題がある。近時にお
いては、所謂廃品の分別回収等の見地から、本体が金属
製である容器蓋に施されている合成樹脂の量をできるだ
け低減せしめ、例えば重量比で３５％以下にせしめるこ
とが望まれることも少なくない（合成樹脂の重量比が充
分に小さいと合成樹脂を含有している容器蓋の全体を金
属製廃品として、特に問題を発生せしめることなく溶融
処理等の所要処理を加えることができる）。然るに、延
出片を合成樹脂で形成すると、通常、天面壁の内面には
合成樹脂製シール部材が施されている故に、容器蓋にお
ける合成樹脂の重量比が相当大きくなる。On the other hand, when the extension piece is formed of a synthetic resin, a raised portion having a required raised height can be formed sufficiently easily. However, when the extension piece is formed of a synthetic resin, there is a separate problem as described below. In recent years, from the viewpoint of so-called separation and collection of waste products, it is desirable to reduce the amount of synthetic resin applied to a container lid whose main body is made of metal as much as possible, for example, to 35% or less by weight. (If the weight ratio of the synthetic resin is sufficiently small, the entire lid of the container containing the synthetic resin can be used as a metal waste item, and required treatment such as melting treatment can be added without causing any problem. ). However, when the extension piece is formed of a synthetic resin, the weight ratio of the synthetic resin in the container lid becomes considerably large because a seal member made of a synthetic resin is usually provided on the inner surface of the top wall.
【０００８】本発明は上記事実に鑑みてなされたもので
あり、その主たる技術的課題は、合成樹脂の重量比を過
剰に増大せしめることなく、充分な***高さを有する隆
起部が充分容易に形成され得る、新規且つ優れた簡易開
封型容器蓋を提供することである。[0008] The present invention has been made in view of the above-mentioned facts, and the main technical problem thereof is that a raised portion having a sufficient raised height can be easily formed without excessively increasing the weight ratio of the synthetic resin. An object of the present invention is to provide a new and excellent simple opening type container lid which can be formed.
【０００９】本発明の他の技術的課題は、上記主たる技
術的課題の達成に加えて、開封時に消費者の指が金属薄
板縁に接触せしめられる可能性が著しく低減された、新
規且つ改良された簡易開封型容器蓋を提供することであ
る。[0009] Another technical problem of the present invention, in addition to achieving the above-mentioned main technical problem, is a new and improved method that significantly reduces the possibility that a consumer's finger is brought into contact with the sheet metal edge when opening. Another object of the present invention is to provide a simple openable container lid.
【００１０】[0010]
【課題を解決するための手段】上記主たる技術的課題を
達成するために、本発明においては、金属薄板製の延出
片の基部に、基部の表面から***せしめられた***部を
有する合成樹脂製付加片を連結する。In order to achieve the above-mentioned main technical problems, the present invention provides a synthetic resin having a raised portion raised from the surface of the base at the base of an extended piece made of a thin metal plate. Connecting pieces made of metal.
【００１１】即ち、本発明によれば、上記主たる技術的
課題を達成する簡易開封型容器蓋として、天面壁、該天
面壁の周縁から垂下するスカート壁、及び該スカートの
下端から延出する延出片を含む金属薄板製本体を具備
し、該本体の該延出片はリング形状部と該リング形状部
を該スカート壁の下端に接続している基部とを有する簡
易開封型容器蓋において、該本体の該延出片における該
基部には、該基部の表面から***せしめられた***部を
有する合成樹脂製付加片が連結されている、ことを特徴
とする簡易開封型容器蓋が提供される。That is, according to the present invention, as a simple openable container lid for achieving the above-mentioned main technical problems, a top wall, a skirt wall hanging down from the periphery of the top wall, and an extension extending from a lower end of the skirt. A simple openable container lid comprising a metal sheet main body including a protruding piece, wherein the extending piece of the main body has a ring-shaped portion and a base connecting the ring-shaped portion to a lower end of the skirt wall. A simple openable container lid is provided, wherein an additional piece made of a synthetic resin having a raised portion raised from the surface of the base is connected to the base of the extended piece of the main body. You.
【００１２】好適実施形態においては、該延出片の該基
部には連結開口が形成されており、該付加片は該連結開
口を通して該基部の表面と裏面とに渡って溶融状態の合
成樹脂を流動せしめることによって成形と同時に該基部
に連結されている。In a preferred embodiment, a connection opening is formed in the base of the extension piece, and the additional piece is made of synthetic resin in a molten state over the front and back surfaces of the base through the connection opening. By flowing, it is connected to the base simultaneously with the molding.
【００１３】上記他の技術的課題を達成する簡易開封式
容器蓋においては、該付加片は該延出片の該基部の両側
縁を越えて両側に突出する両側突出部を有する。好まし
くは、該付加片は該延出片の該基部の裏面を横方向に連
続して延在する裏面側延在部を有し、該裏面側延在部の
両端部が該両側突出部を構成している。上記他の技術的
課題を達成するたの簡易開封式容器蓋においては、該付
加片は該延出片の該基部の両側縁を覆う側縁被覆部を有
する。[0013] In the simple-opening-type container lid which achieves the above-mentioned other technical problem, the additional piece has both side protruding portions protruding beyond both side edges of the base of the extension piece. Preferably, the additional piece has a back surface side extending portion that continuously extends in the lateral direction on the back surface of the base portion of the extending piece, and both end portions of the back surface extending portion correspond to the both side projecting portions. Make up. In the simple opening type container lid for achieving the other technical problem, the additional piece has side edge covering portions that cover both side edges of the base of the extension piece.
【００１４】[0014]
【発明の実施の形態】以下、本発明に従って構成された
簡易開封型容器蓋の好適実施形態を図示している添付図
面を参照して、更に詳細に説明する。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view showing a preferred embodiment of a simple opening type container lid according to the present invention.
【００１５】図１及び図２を参照して説明すると、全体
を番号２で示す本発明に従って構成された簡易開封型容
器蓋は、金属薄板製本体４に加えて、合成樹脂製シール
部材６（図２）及び合成樹脂製付加片８を具備してい
る。Referring to FIG. 1 and FIG. 2, a simple-opening type container lid generally designated by the numeral 2 according to the present invention includes a synthetic resin sealing member 6 ( 2) and an additional piece 8 made of synthetic resin.
【００１６】図１及び図２と共に図３を参照して説明を
続けると、アルミニウム基合金薄板、クロム酸処理鋼薄
板或いはブリキ薄板の如き適宜の金属薄板から形成する
ことができる本体４は、円形天面壁１０、この天面壁１
０の周縁から垂下する円筒状スカート壁１２、及びスカ
ート壁１２の下端から延出する延出片１４を含んでい
る。延出片１４はスカート壁１２の下端から実質上鉛直
に下方に延出し、そして更に容器蓋２の中心軸線に対し
て略７０度の角度をなして、半径方向外方に延出せしめ
られている。かかる延出片１４はリング形状部１６とこ
のリング形状部１６をスカート壁１６の下端に接続して
いる基部１８とを有する。スカート壁１２の下端には延
出片１４の両側に位置する一対の切欠２０ａ及び２０ｂ
が形成されている。スカート壁１２及び天面壁１０に
は、材料厚さを低減せしめた所謂スコアから構成するこ
とができる一対の破断ライン２２ａ及び２２ｂも形成さ
れている。かかる破断ライン２２ａ及び２２ｂの各々
は、切欠２０ａ及び２０ｂの各々からスカート壁１２を
上方に延び、次いで天面壁１０の外周縁部に沿って弧状
に延び、そして更に延出片１４が存在する領域の直径方
向反対側においてスカート壁１２に延びている。Referring to FIG. 3 in conjunction with FIGS. 1 and 2, the body 4, which can be formed from any suitable metal sheet, such as an aluminum-based alloy sheet, a chromic steel sheet or a tin sheet, has a circular shape. Top wall 10, this top wall 1
The skirt wall 12 includes a cylindrical skirt wall 12 hanging from a periphery of the skirt wall 12 and an extension piece 14 extending from a lower end of the skirt wall 12. The extension piece 14 extends substantially vertically downward from the lower end of the skirt wall 12 and further extends radially outward at an angle of approximately 70 degrees with respect to the center axis of the container lid 2. I have. The extension piece 14 has a ring-shaped portion 16 and a base 18 connecting the ring-shaped portion 16 to a lower end of the skirt wall 16. At the lower end of the skirt wall 12, a pair of notches 20a and 20b located on both sides of the extension piece 14 are provided.
Are formed. The skirt wall 12 and the top wall 10 are also provided with a pair of break lines 22a and 22b that can be formed from so-called scores with reduced material thickness. Each such break line 22a and 22b extends up the skirt wall 12 from each of the cutouts 20a and 20b, and then extends in an arc along the outer peripheral edge of the top wall 10 and the area where the extension piece 14 is present. At the diametrically opposite side of the skirt wall 12.
【００１７】低密度ポリエチレン等の比較的軟質の合成
樹脂から形成されているのが好都合である合成樹脂製シ
ール部材６（図２）は天面壁１０の内面に配設されてい
る。かかるシール部材６は、天面壁１０の内面に合成樹
脂材料を供給し、かかる合成樹脂材料を所要形状に型押
成形することによって好都合に形成することができる。
所望ならば、スピンライニング法と称されるそれ自体は
周知の方式等の他の任意の方式によってシール部材６を
形成することもでき、或いは本体４とは別個に形成して
天面壁１０の内面に配設することもできる。シール部材
６自体の形態は周知のものでよい。A synthetic resin sealing member 6 (FIG. 2), which is conveniently formed of a relatively soft synthetic resin such as low density polyethylene, is disposed on the inner surface of the top wall 10. The sealing member 6 can be conveniently formed by supplying a synthetic resin material to the inner surface of the top wall 10 and stamping and molding the synthetic resin material into a required shape.
If desired, the sealing member 6 can be formed by any other method such as a well-known method itself, which is called a spin lining method, or can be formed separately from the main body 4 to form the inner surface of the top wall 10. It can also be arranged in. The form of the seal member 6 itself may be a known one.
【００１８】図１及び図２に明確に図示する如く、本発
明に従って構成された容器蓋２においては、本体４の延
出片１４の基部１８に合成樹脂製付加片８が連結されて
いることが重要である。図示の実施形態においては、図
３に明確に図示する如く、延出片１４の基部１８には略
矩形状でよい連結開口２４が形成されており、かかる延
出片１４の基部１８を所謂インサート片として成形型内
に位置せしめて、連結開口２４を通して基部１８の表面
と裏面とに渡って溶融状態の合成樹脂を流動せしめるこ
とによって、付加片８が成形と同時に基部１８に連結さ
れている。かかる付加片８は基部１８の表面上に位置す
る***部２６と共に基部１８の裏面に位置する裏面側延
在部２８とを有し、***部２６と裏面側延在部２８とは
連結開口２４内に存在する連結部を介して一体に連結さ
れている。***部２６は連結開口２４の周縁を越えて基
部１８の表面上を延在せしめられ、また裏面側延在部２
８も連結開口２４の周縁を越えて基部１８の裏面上を延
在せしめられており、かくして付加片８が延出片１４の
基部１８に充分堅固に連結されている。付加片８の***
部２６の横断面形状は、図２から明確に理解される如
く、***先端が頂角をなす略二等辺三角形状であり、基
部１８に対して２乃至５ｍｍ、特に３乃至４ｍｍ程度で
あるのが好適である***高さｈを有する。付加片８の裏
面側延在部２８の横断面形状は矩形状でよい。かような
付加片８は高密度ポリエチレン又はポリプロピレンの如
き適宜の合成樹脂から形成することができる。As clearly shown in FIGS. 1 and 2, in the container lid 2 constructed in accordance with the present invention, the synthetic resin additional piece 8 is connected to the base 18 of the extension piece 14 of the main body 4. is important. In the illustrated embodiment, as clearly shown in FIG. 3, the base 18 of the extension piece 14 is formed with a connection opening 24 that may be substantially rectangular, and the base 18 of the extension piece 14 is formed by a so-called insert. The additional piece 8 is connected to the base 18 at the same time as the molding, by being positioned in the mold as a piece and allowing the synthetic resin in a molten state to flow through the connection opening 24 over the front and back surfaces of the base 18. The additional piece 8 has a protruding portion 26 located on the front surface of the base 18 and a back surface side extending portion 28 located on the back surface of the base 18, and the protruding portion 26 and the back surface extending portion 28 are connected to each other by the connection opening 24. Are integrally connected via a connecting portion existing in the inside. The raised portion 26 extends over the surface of the base 18 beyond the periphery of the connection opening 24, and
The extension 8 also extends beyond the periphery of the connection opening 24 on the back surface of the base 18, so that the additional piece 8 is sufficiently firmly connected to the base 18 of the extension piece 14. As can be clearly understood from FIG. 2, the cross-sectional shape of the raised portion 26 of the additional piece 8 is a substantially isosceles triangle with the raised tip forming an apex angle, and is 2 to 5 mm, particularly 3 to 5 mm with respect to the base 18. It has a raised height h that is preferably around 4 mm. The cross-sectional shape of the back side extension 28 of the additional piece 8 may be rectangular. Such an additional piece 8 can be formed from a suitable synthetic resin such as high-density polyethylene or polypropylene.
【００１９】図４には、上記容器蓋２を容器の口頸部３
２に装着して口頸部３２を密封した状態が図示されてい
る。ガラス、合成樹脂或いは金属薄板から形成すること
ができる容器は上端が開口された略円筒形状の口頸部３
２を有する。かかる口頸部３２の外周面には環状係止あ
ご部３４が形成されている。容器の口頸部３２に容器蓋
２を装着して口頸部３２を密封する際には、口頸部３２
に容器蓋２を被嵌せしめて容器蓋２を下方に押圧して、
シール部材６の周縁部を口頸部３２の上端部に圧接せし
め、かかる状態を保持しながら本体４のスカート壁１２
の下端部を内側に変形して口頸部３２の環状係止あご部
３４に係止せしめる。図２と図４を比較参照することに
よって理解される如く、容器蓋２を口頸部３２に装着す
る際には、本体４の延出片１４が幾分下方に変形されて
口頸部３２の外周面に沿って下方に延びる状態にせしめ
られる。FIG. 4 shows the container lid 2 with the mouth and neck 3 of the container.
2 shows a state in which the mouth and neck 32 is sealed. A container which can be formed of glass, synthetic resin, or a thin metal plate has a substantially cylindrical mouth-and-neck portion 3 having an open upper end.
2 An annular locking jaw 34 is formed on the outer peripheral surface of the mouth and neck 32. When attaching the container lid 2 to the mouth and neck 32 of the container and sealing the mouth and neck 32, the mouth and neck 32
The container lid 2 is fitted to the container and the container lid 2 is pressed downward,
The peripheral edge of the sealing member 6 is pressed against the upper end of the mouth-neck portion 32 and the skirt wall 12
Is deformed inward to be locked on the annular locking jaw 34 of the mouth and neck portion 32. As can be understood by comparing FIG. 2 and FIG. 4, when the container lid 2 is attached to the mouth and neck 32, the extension piece 14 of the main body 4 is slightly deformed downward and the mouth and neck 32 Are extended downwardly along the outer peripheral surface of the main body.
【００２０】口頸部３２から容器蓋２を離脱せしめて容
器を開封するためには、本体４の延出片１４に形成され
ているリング形状部１６に指を掛け、最初に略水平に前
方即ち矢印３６で示す方向に引っ張り、これによって本
体４のスカート壁１２及び天面壁１０に形成されている
一対の破断ライン２２ａ及び２２ｂの破断開始部（切欠
２０ａ及び２０ｂに続いてスカート１２を上方に天面壁
１０の周縁まで延びている部分）を破断せしめる。次い
で、延出片１４のリング形状部１６を上方に移動せしめ
る。かくすると、延出部１４の基部１８は上方に湾曲せ
しめられ、図５に図示する如く、延出片１４の基部１８
に連結されている付加片８の***部２６の先端がスカー
ト壁１２の外周面に当接せしめられる。かかる状態から
更にリング形状部１６を上方乃至後方に引っ張ると、隆
起部２６がスカート壁１２の外周面に当接せしめられて
いることに起因してスカート壁１２及び天面壁１０に充
分効果的に力が加えられ、一対の破断ライン２２ａ及び
２２ｂの破断が進行されると共に天面壁１０及びスカー
ト壁１２が適宜に変形され、しかる後に口頸部３２から
容器蓋２の全体が離脱せしめられる。リング形状部１６
を最初に略水平に前方に引っ張ることを省略して、リン
グ形状部１６を直接的に上方乃至後方に引っ張った場合
でも、***部２６がスカート壁１２の外周面に当接せし
められることに起因して、一対の破断ライン２２ａ及び
２２ｂの破断を充分容易に進行せしめることができる。In order to remove the container lid 2 from the mouth and neck portion 32 and open the container, put a finger on the ring-shaped portion 16 formed on the extension piece 14 of the main body 4 and first move the container substantially horizontally forward. That is, the skirt 12 is pulled in the direction indicated by the arrow 36, whereby the rupture start portions of the pair of rupture lines 22 a and 22 b formed on the skirt wall 12 and the top wall 10 of the main body 4 (the skirt 12 is raised upward following the notches 20 a and 20 b). The portion extending to the peripheral edge of the top wall 10) is broken. Next, the ring-shaped portion 16 of the extension piece 14 is moved upward. As a result, the base 18 of the extension 14 is bent upward, and as shown in FIG.
The tip of the raised portion 26 of the additional piece 8 connected to the skirt wall 12 is brought into contact with the outer peripheral surface of the skirt wall 12. When the ring-shaped portion 16 is further pulled upward or backward from such a state, the ridge 26 is brought into contact with the outer peripheral surface of the skirt wall 12, so that the skirt wall 12 and the top wall 10 are sufficiently effectively. A force is applied to cause the breakage of the pair of break lines 22a and 22b to progress, and the top wall 10 and the skirt wall 12 are appropriately deformed, and then the entire container lid 2 is detached from the neck 32. Ring shape part 16
When the ring-shaped portion 16 is directly pulled upward or backward without first pulling the ring-shaped portion 16 substantially horizontally forward, the raised portion 26 is caused to abut against the outer peripheral surface of the skirt wall 12. As a result, the breaking of the pair of breaking lines 22a and 22b can proceed sufficiently easily.
【００２１】図６は、本発明に従って構成された簡易開
封型容器蓋の変形例を図示している。図６に図示する変
形例においても、金属薄板製本体１０４における延出片
１１４の基部１１８には合成樹脂製付加片１０８が連結
されている。そしてかかる付加片１０８は***部１２６
と裏面側延在部１２８とを有する。付加片１０８の裏面
側延在部１２８は延出片１１４の基部１１８の裏面を横
方向に連続して細長く延び、裏面側延在部１２８の両端
部は延出片１１４の基部１１８の両側縁を越えて横方向
両側に突出する両側突出部１２７ａ及び１２７ｂを構成
している。付加片１０８がかような両側突出部１２７ａ
及び１２７ｂを有する場合には、図６と共に図５を参照
することによって理解される如く、容器の口頸部に装着
されている容器蓋１０２の延出片１１４のリング形状部
１１６に指を掛けて引っ張る際に、リング形状部１１６
に掛けた指に隣接する他の指が、例えばスカート壁１１
２の下端に形成されている切欠１２０ａ及び１２０ｂに
偶発的に接触せしめられる虞が確実に回避される。付加
片１０８の裏面側延在部１２８の形状を除けば、図６に
図示する変形例は図１乃至図５を参照して説明した容器
蓋２と実質上同一である。FIG. 6 shows a modified example of the simple opening type container lid constructed according to the present invention. In the modification shown in FIG. 6 as well, a synthetic resin additional piece 108 is connected to the base 118 of the extension piece 114 in the thin metal plate main body 104. Then, the additional piece 108 is
And a back side extension 128. The back side extension portion 128 of the additional piece 108 extends continuously and elongated on the back surface of the base portion 118 of the extension piece 114, and both ends of the back side extension portion 128 are on both side edges of the base portion 118 of the extension piece 114. And protruding portions 127a and 127b protruding to both sides in the lateral direction. Both side protruding portions 127a like the additional piece 108
And 127b, put a finger on the ring-shaped portion 116 of the extension piece 114 of the container lid 102 attached to the mouth and neck of the container, as understood by referring to FIG. When pulling, the ring-shaped portion 116
Another finger adjacent to the finger on the skirt wall 11
The possibility of accidental contact with the notches 120a and 120b formed at the lower end of the second member 2 is reliably avoided. 6 is substantially the same as the container lid 2 described with reference to FIGS. 1 to 5 except for the shape of the rear-side extension 128 of the additional piece 108.
【００２２】図７は、本発明に従って構成された簡易開
封型容器蓋の他の変形例を図示している。図７に図示す
る変形例においても、金属薄板製本体２０４における延
出片２１４の基部２１８には合成樹脂製付加片２０８が
連結されている。そしてかかる付加片２０８は***部２
２６と裏面側延在部（図示していないが、図２に図示す
る容器蓋２における付加片８の裏面側延在部２８と同一
形状でよい）とを有する。付加片２０８は、更に、***
部２２６を囲繞して延出片２１４の基部２１８の表面を
延在し、そして基部２１８の両側縁を包み込んで基部２
１８の裏面に至り、更に裏面側延在部２２８を囲繞して
基部２１８の裏面にを延在している薄膜状部を有し、か
かる薄膜状部の両側部は基部２１８の両側縁を覆う側縁
被覆部２２９ａ及び２２９ｂを構成している。付加片２
０８が側縁被覆部２２９ａ及び２２９ｂを有する場合に
は、金属薄板から形成されている延出片２１４の基部２
１８の鋭い縁が合成樹脂製の側縁被覆部２２９ａ及び２
２９ｂによって包み込まれている故に、図７と共に図５
を参照することによって容易に理解される如く、容器の
口頸部に装着されている容器蓋２０２の延出片２１４の
リング形状部２１６に指を掛けて引っ張る際に、リング
形状部２１６に掛けた指に隣接する他の指が、延出片２
１４の基部２１８の鋭い縁に偶発的に接触せしめられる
ことが確実に回避される。付加片２０８が側縁被覆部２
２９ａ及び２２９ｂを構成する薄膜状部を有することを
除けば、図７に図示する変形例は図１乃至図５を参照し
て説明した容器蓋２と実質上同一である。FIG. 7 shows another modification of the simple opening type container lid constructed according to the present invention. Also in the modification shown in FIG. 7, a synthetic resin additional piece 208 is connected to the base 218 of the extension piece 214 in the thin metal plate body 204. And the additional piece 208 is the raised portion 2
26 and a back side extension (not shown, but may have the same shape as the back side extension 28 of the additional piece 8 in the container lid 2 shown in FIG. 2). The additional piece 208 further extends around the ridge 226 on the surface of the base 218 of the extension piece 214, and wraps around both sides of the base 218 to form the base 2.
18, and further has a thin film portion extending to the back surface of the base 218 so as to surround the back side extension 228, and both side portions of the thin film portion cover both side edges of the base portion 218. The side edge covering portions 229a and 229b are configured. Additional piece 2
08 has side edge covering portions 229a and 229b, the base 2 of the extension piece 214 formed of a thin metal plate
18 sharp edges are made of synthetic resin side edge covering portions 229a and 229a.
FIG. 5 together with FIG.
As can be easily understood by referring to FIG. 5, when a finger is pulled on the ring-shaped portion 216 of the extension piece 214 of the container lid 202 attached to the mouth and neck of the container, the ring-shaped portion 216 The other finger adjacent to the finger
Accidental contact with the sharp edge of the 14 base 218 is reliably avoided. The additional piece 208 is the side edge covering portion 2
The modification shown in FIG. 7 is substantially the same as the container lid 2 described with reference to FIGS. 1 to 5 except that it has a thin film portion forming the parts 29a and 229b.
【００２３】図１乃至図７に図示する実施形態において
は、金属薄板製本体のスカート壁及び天面壁に一対の破
断ラインが形成されており、容器の口頸部から容器蓋を
離脱する際には一対の破断ラインが破断されるが、本発
明はかかる形態の容器蓋に限定されるものではなく、例
えば、特開平６−２１１２５８号公報に開示されている
如く、金属薄板製本体のスカート壁には適宜の角度間隔
をおいて下端から上方に延びる一対乃至複数対の破断ラ
イン又はスリット（切り溝）が形成されており、天面壁
には破断ラインが存在せず、容器の口頸部から容器蓋を
離脱する際に延出片のリング形状部を所要方向に引っ張
ると、スカート壁に形成されている一対又は複数対の破
断ライン又はスリットに対応して天面壁が折り曲げられ
るそれ自体は周知の形態の容器蓋にも、本発明を適用す
ることができる。In the embodiment shown in FIGS. 1 to 7, a pair of break lines are formed on the skirt wall and the top wall of the thin metal plate body, and when the container lid is detached from the mouth and neck of the container. Although a pair of breaking lines are broken, the present invention is not limited to the container lid of such a form. For example, as disclosed in JP-A-6-212258, a skirt wall of a metal sheet main body is disclosed. Is formed with a pair or a plurality of pairs of break lines or slits (cut grooves) extending upward from the lower end at an appropriate angular interval, there is no break line on the top wall, and from the mouth and neck of the container When the ring-shaped portion of the extension piece is pulled in a required direction when the container lid is detached, the top wall is bent in accordance with one or more pairs of breaking lines or slits formed on the skirt wall. Also the form of the container closure, it is possible to apply the present invention.
【００２４】更に、図１乃至図７に図示する実施形態に
おいては、上述したとおり連結開口が形成されている延
出片を所謂インサート片として成形型内に位置せしめ
て、合成樹脂製付加片を成形すると同時に金属薄板製本
体に連結しているが、所望ならば、金属薄板製本体とは
別個に合成樹脂製付加片を成形し、例えば接着剤を介し
て本体に形成されている延出片の基部の表面に付加片を
連結する、或いは延出片の基部に形成されている連結開
口に付加片を弾性的に変形せしめて強制的に挿入して連
結することもできる。Further, in the embodiment shown in FIGS. 1 to 7, the extending piece having the connecting opening as described above is positioned in a molding die as a so-called insert piece, and a synthetic resin additional piece is formed. It is connected to the metal sheet body at the same time as the molding, but if desired, an additional piece made of synthetic resin is formed separately from the metal sheet body, for example, an extension piece formed on the body via an adhesive It is also possible to connect the additional piece to the surface of the base of the extension piece or to forcibly insert the additional piece into the connection opening formed in the base of the extension piece and to forcibly insert it.
【００２５】[0025]
【発明の効果】本発明の簡易開封型容器蓋は、合成樹脂
の重量比を過剰に増大せしめることなく、従って廃品の
分別回収に関して特に問題を生成せしめることなく、容
易に形成することができる所要形状の***部を有し、容
器の口頸部から充分容易に離脱せしめることが可能であ
る。The simple openable container lid of the present invention is required to be easily formed without excessively increasing the weight ratio of the synthetic resin, and therefore, without particularly causing any problem concerning the separation and recovery of waste products. It has a ridge in shape and can be detached from the mouth and neck of the container easily enough.
【図１】本発明に従って構成された簡易開封型容器蓋の
好適実施形態を示す斜面図。FIG. 1 is a perspective view showing a preferred embodiment of a simple opening type container lid constructed according to the present invention.
【図２】図１の容器蓋の断面図。FIG. 2 is a sectional view of the container lid of FIG.
【図３】図１の容器蓋の金属薄板製本体を示す斜面図。FIG. 3 is a perspective view showing a metal sheet main body of the container lid of FIG. 1;
【図４】図１の容器蓋を容器の口頸部に所要とおりに装
着した状態を図示する断面図。FIG. 4 is a cross-sectional view illustrating a state where the container lid of FIG. 1 is attached to the mouth and neck of the container as required.
【図５】容器の口頸部に装着された容器蓋を口頸部から
離脱せしめる際の容器蓋の挙動を説明するための断面
図。FIG. 5 is a cross-sectional view for explaining the behavior of the container cover when the container cover attached to the mouth and neck of the container is detached from the mouth and neck.
【図６】本発明に従って構成された簡易開封型容器蓋の
変形例を示す斜面図。FIG. 6 is a perspective view showing a modified example of the simple opening type container lid configured according to the present invention.
【図７】本発明に従って構成された簡易開封型容器蓋の
他の変形例を示す斜面図。FIG. 7 is a perspective view showing another modified example of the simple opening type container lid configured according to the present invention.
２：簡易開封型容器蓋 ４：金属薄板製本体 ６：合成樹脂製シール部材 ８：合成樹脂製付加片 １０：本体の天面壁 １２：本体のスカート壁 １４：本体の延出片 １６：延出片のリング形状部 １８：延出片の基部 ２４：延出片の基部に形成された連結開口 ２６：付加片の***部 ２８：付加片の裏面延在部 ３２：容器の口頸部 １０２：簡易開封型容器蓋 １０４：金属薄板製本体 １０８：合成樹脂製付加片 １１２：本体のスカート壁 １１４：本体の延出片 １１６：延出部のリング形状部 １１８：延出部の基部 １２６：付加片の***部 １２７ａ：付加片の突出部 １２７ｂ：付加片の突出部 １２８：付加片の裏面側延在部 ２０２：簡易開封型容器蓋 ２０４：金属薄板製本体 ２０８：合成樹脂製付加片 ２１４：本体の延出部 ２１６：延出部のリング形状部 ２１８：延出部の基部 ２２６：付加片の***部 ２２９ａ：付加片の側縁被覆部 ２２９ｂ：付加片の側縁被覆部 2: Simple opening type container lid 4: Metal thin plate main body 6: Synthetic resin sealing member 8: Synthetic resin additional piece 10: Top surface wall of main body 12: Skirt wall of main body 14: Extension piece of main body 16: Extension Ring-shaped portion 18 of the piece 18: Base of the extension piece 24: Connection opening formed at the base of the extension piece 26: Protrusion of the additional piece 28: Extension of the back side of the additional piece 32: Neck and neck of the container 102: Simple openable container lid 104: Metal thin plate main body 108: Synthetic resin additional piece 112: Main body skirt wall 114: Main body extension piece 116: Extension portion ring-shaped portion 118: Extension portion base 126: Addition Protrusion 127a: Projection of additional piece 127b: Projection of additional piece 128: Backside extension of additional piece 202: Simple openable container lid 204: Metal thin plate main body 208: Synthetic resin additional piece 214: Main unit extension 216: extension 218: base of extension 226: ridge of additional piece 229a: side edge coating of additional piece 229b: side edge coating of additional piece
Claims (5)
カート壁、及び該スカートの下端から延出する延出片を
含む金属薄板製本体を具備し、該本体の該延出片はリン
グ形状部と該リング形状部を該スカート壁の下端に接続
している基部とを有する簡易開封型容器蓋において、 該本体の該延出片における該基部には、該基部の表面か
ら***せしめられた***部を有する合成樹脂製付加片が
連結されている、ことを特徴とする簡易開封型容器蓋。1. A thin metal body including a top wall, a skirt wall hanging from a periphery of the top wall, and an extension piece extending from a lower end of the skirt, wherein the extension piece of the main body is a ring. A simple opening type container lid having a shape portion and a base portion connecting the ring shape portion to a lower end of the skirt wall, wherein the base portion of the extension piece of the main body is raised from a surface of the base portion. And a synthetic resin additional piece having a raised portion connected thereto.
れており、該付加片は該連結開口を通して該基部の表面
と裏面とに渡って溶融状態の合成樹脂を流動せしめるこ
とによって成形と同時に該基部に連結されている、請求
項１記載の簡易開封型容器。2. A connection opening is formed in the base of the extension piece, and the additional piece is formed by flowing the synthetic resin in a molten state through the connection opening over the front and back surfaces of the base. The simple openable container according to claim 1, wherein the container is connected to the base simultaneously with molding.
越えて両側に突出する両側突出部を有する、請求項１又
は２記載の簡易開封型容器蓋。3. The simple opening type container lid according to claim 1, wherein the additional piece has a both-side projecting portion projecting to both sides beyond both side edges of the base of the extension piece.
方向に連続して延在する裏面側延在部を有し、該裏面側
延在部の両端部が該両側突出部を構成している、請求項
３記載の簡易開封型容器蓋。4. The additional piece has a back side extension extending continuously in the lateral direction on the back side of the base of the extension piece, and both end portions of the back side extension are projecting on both sides. The simple openable container lid according to claim 3, which constitutes a part.
覆う側縁被覆部を有する、請求項１から４までのいずれ
かに記載の簡易開封型容器蓋。5. The simple opening type container lid according to claim 1, wherein the additional piece has a side edge covering portion covering both side edges of the base of the extension piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8181726A JPH1024955A (en) | 1996-07-11 | 1996-07-11 | Easy-to-open container lid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8181726A JPH1024955A (en) | 1996-07-11 | 1996-07-11 | Easy-to-open container lid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1024955A true JPH1024955A (en) | 1998-01-27 |
Family
ID=16105814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8181726A Pending JPH1024955A (en) | 1996-07-11 | 1996-07-11 | Easy-to-open container lid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1024955A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008174266A (en) * | 2007-01-18 | 2008-07-31 | Japan Crown Cork Co Ltd | Easy-to-open container lid |
| JP2009161190A (en) * | 2007-12-28 | 2009-07-23 | Yoshino Kogyosho Co Ltd | Beverage container |
| JP2014166860A (en) * | 2013-02-28 | 2014-09-11 | Nippon Closures Co Ltd | Tearing container lid |
| EP3037361A4 (en) * | 2013-08-22 | 2017-04-19 | Nippon Closures Co., Ltd. | Easily openable container lid |
| WO2021111811A1 (en) * | 2019-12-05 | 2021-06-10 | 日本クロージャー株式会社 | Easily-openable container lid |
-
1996
- 1996-07-11 JP JP8181726A patent/JPH1024955A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008174266A (en) * | 2007-01-18 | 2008-07-31 | Japan Crown Cork Co Ltd | Easy-to-open container lid |
| JP2009161190A (en) * | 2007-12-28 | 2009-07-23 | Yoshino Kogyosho Co Ltd | Beverage container |
| JP2014166860A (en) * | 2013-02-28 | 2014-09-11 | Nippon Closures Co Ltd | Tearing container lid |
| EP3037361A4 (en) * | 2013-08-22 | 2017-04-19 | Nippon Closures Co., Ltd. | Easily openable container lid |
| US9969537B2 (en) | 2013-08-22 | 2018-05-15 | Nippon Closures Co., Ltd. | Easily openable container lid |
| RU2654181C2 (en) * | 2013-08-22 | 2018-05-16 | Ниппон Клоужерс Ко., Лтд. | Easily openable container lid |
| WO2021111811A1 (en) * | 2019-12-05 | 2021-06-10 | 日本クロージャー株式会社 | Easily-openable container lid |
| JP2021088393A (en) * | 2019-12-05 | 2021-06-10 | 日本クロージャー株式会社 | Easily openable container lid |
| US11851248B2 (en) | 2019-12-05 | 2023-12-26 | Nippon Closures Co., Ltd. | Easily openable container lid |
| EP4071077A4 (en) * | 2019-12-05 | 2024-01-24 | Nippon Closures Co Ltd | Easily-openable container lid |
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