JPH03289441A - Cover with easily breakable seal - Google Patents

Cover with easily breakable seal

Info

Publication number
JPH03289441A
JPH03289441A JP2078397A JP7839790A JPH03289441A JP H03289441 A JPH03289441 A JP H03289441A JP 2078397 A JP2078397 A JP 2078397A JP 7839790 A JP7839790 A JP 7839790A JP H03289441 A JPH03289441 A JP H03289441A
Authority
JP
Japan
Prior art keywords
tab
plate
cover
easy
plastic layer
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.)
Granted
Application number
JP2078397A
Other languages
Japanese (ja)
Other versions
JP3085683B2 (en
Inventor
Sadao Yamamoto
山本 貞男
Kazunori Sato
和典 佐藤
Mitsuo Imai
今井 光男
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Resonac Holdings Corp
Original Assignee
Showa Denko KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Showa Denko KK filed Critical Showa Denko KK
Priority to JP02078397A priority Critical patent/JP3085683B2/en
Publication of JPH03289441A publication Critical patent/JPH03289441A/en
Application granted granted Critical
Publication of JP3085683B2 publication Critical patent/JP3085683B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PURPOSE:To provide a cover whose seal can be easily broken without causing a tab to be removed when the cover is taken off by forming at least a portion of a plate whose seal is to be broken adjacent to a weakened line using a material differing from that of the other portion of said plate and forming the former portion and a tab into one piece. CONSTITUTION:The cover consists of a gas barrier 10 and a plastic layer 11 superposed over said barrier. The outer peripheral section of the cover, whose seal can be easily broken, has a L-shaped cross section to form a flange 12. The inner periphery of the flange 12 constitutes a seal breaking section 13, which is encircled by a slit weakened line 14 formed on the layer 11. The layer 11 is divided into two segments, a push rupture plate 15 and a covering plate 16. The plate 15 is formed into a bowed shape whose arcuate edge is located adjacent to the line 14 and the remainder of the layer 11 is occupied by the plate 16. A tab 17 is provided integrally with the plate 15.

Description

【発明の詳細な説明】 「産業上の利用分野」 本発明は、缶切り等の器具を用いずに開封できる易開封
性蓋に関する。
DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to an easy-to-open lid that can be opened without using an instrument such as a can opener.

「従来の技術」 第7図は、従来の易開封性蓋を示すものである。"Conventional technology" FIG. 7 shows a conventional easy-open lid.

このものは、ガスバリア材1の表面側にプラスチック層
2が積層されてなるものである。ガスバリア材Iには、
カスバリア性を有するアルミニウム箔の表裏両面に無延
伸のポリプロピレンフィルムか積層さた複合フィルムが
用いられている。ま1ニブラスチック層2は、ポリプロ
ピレンによって形成されている。このプラスチック層2
の中央部には弱化線3て囲繞された被開封部4が形成さ
れている。弱化線3は、開封時に引き裂けるように弱く
形成された部分で、この例の蓋ではプラスチック層2に
ガスバリア材1が露出する溝を形成することによって弱
化線3が形成されている。
This material has a plastic layer 2 laminated on the surface side of a gas barrier material 1. For gas barrier material I,
An unstretched polypropylene film or a composite film laminated on both the front and back sides of an aluminum foil having gas barrier properties is used. First, the plastic layer 2 is made of polypropylene. This plastic layer 2
An unsealed portion 4 surrounded by a line of weakness 3 is formed in the center of the container. The weakened line 3 is a weakly formed part so that it can be torn when the package is opened, and in the lid of this example, the weakened line 3 is formed by forming a groove in the plastic layer 2 in which the gas barrier material 1 is exposed.

この蓋の被開封部4には、タブ5か設けられている。こ
のタブ5は、前記弱化線3を引き裂く際に引っ張られる
部分で、その一端側に指掛は用の穴6か設けられている
。このタブ5は、前記プラスチック層2とは別に形成さ
れており、超音波溶着法等によって被開封部4のプラス
チック層2に接着されている。
A tab 5 is provided on the unsealed portion 4 of the lid. This tab 5 is a part that is pulled when the weakened wire 3 is torn, and a hole 6 for a finger rest is provided at one end thereof. This tab 5 is formed separately from the plastic layer 2, and is bonded to the plastic layer 2 of the portion to be opened 4 by ultrasonic welding or the like.

「発明が解決しようとする課題」 このような従来の易開封性蓋にあっては、開封時にタブ
5を引っ張るとタブ5がプラスチック層2から剥離して
しまう場合があるという解決すべき課題が坐った。
"Problem to be Solved by the Invention" With such a conventional easy-open lid, there is a problem to be solved in that when the tab 5 is pulled during opening, the tab 5 may peel off from the plastic layer 2. I sat down.

本発明は前記事情に鑑みてなされたもので、開封時にタ
ブか取れる恐れのない易開封性蓋を提供することを目的
とする。
The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide an easy-to-open lid with no possibility of the tab coming off when the lid is opened.

「課題を解決するための手段」 本発明の易開封性蓋では、被開封部のうち弱化線に隣接
する部分の少なくとも一部を他の部分とは別部材として
形成し、当該別部材とタブとを一体物にすることによっ
て、前記目的を達成した。
"Means for Solving the Problems" In the easy-to-open lid of the present invention, at least a part of the part adjacent to the weakened line of the part to be opened is formed as a separate member from other parts, and the separate member and tab The above objective was achieved by integrating the above.

「作用」 この易開封性蓋では、被開封部の一部を他の部分とは別
部材としたので、当該別部材とタブを一体化することが
できた。そしてこのように当該別部材とタブを一体成形
することによって、当該別部材とタブとの結合状態を最
良な状態とすることができた。
"Function" In this easy-to-open lid, since a part of the unsealed part is a separate member from the other parts, the separate member and the tab can be integrated. By integrally molding the separate member and the tab in this manner, the combined state of the separate member and the tab could be made optimal.

被開封部のうち別部材とされた部分は、弱化線に隣接し
ているので、タブを引き上げると当該別部材の縁部で弱
化線を破断できる。
Since the part of the part to be opened that is a separate member is adjacent to the weakened line, when the tab is pulled up, the weakened line can be broken at the edge of the separate member.

1実施例」 (実施例1) 第1図は、本発明の易開封性蓋の第一実施例を示すもの
である。この蓋は、ガスバリア材lOとその表面に積層
されたプラスチック層11によって形成されている。こ
の易開封性蓋の外周部分は、断面り字状に形成されてお
り、フランジ部12とされている。このフランジ部12
の内周側は被開封部13とされている。この被開封部1
3は、プラスチック層11に刻設されたスリット(以下
、弱化線と記す)14によって囲まれている。
1 Example 1 FIG. 1 shows a first example of the easy-to-open lid of the present invention. This lid is formed of a gas barrier material IO and a plastic layer 11 laminated on its surface. The outer circumferential portion of this easy-to-open lid is formed into a cross-sectional shape, and serves as a flange portion 12 . This flange portion 12
The inner circumferential side is an unsealed part 13. This unsealed part 1
3 is surrounded by a slit (hereinafter referred to as a weakened line) 14 cut in the plastic layer 11.

被開封部13のプラスチック層11は、押突板部15と
被覆板部16との2つに分割されている。
The plastic layer 11 of the unsealed part 13 is divided into two parts, a pressing plate part 15 and a cover plate part 16.

押突板部15は、弓形に形成されておりその円弧状の端
縁は弱化線14に隣接している。被開封部13の押突板
部15を除いた部分は、前記被覆板部16となっている
The pushing plate part 15 is formed in an arcuate shape, and the arcuate edge thereof is adjacent to the weakened line 14. The portion of the unsealed portion 13 excluding the pushing plate portion 15 serves as the covering plate portion 16.

この被開封部13の押突板部15には、タブ17か一体
に設けられている。これら押突板部15とタブ17とは
、成形用金型の1つのキャビティ内で成形することによ
って一体となっている。
A tab 17 is integrally provided on the push plate portion 15 of the unsealed portion 13. These pressing plate portion 15 and tab 17 are integrally formed by molding within one cavity of a molding die.

次にこの易開封性蓋の製造方法を説明する。Next, a method of manufacturing this easy-to-open lid will be explained.

この易開封性蓋を製造するには、まずガスバリア材lO
を所定の形状に成形する。これとは別に、プラスチック
層11のうちフランジ部■2をなす部分、押突板部15
とタブ17とが一体となった部分、および被覆板部16
の部分とをそれぞれ個別に射出成形する。ついでこれら
の射出成形品を組み合わせたあと、ガスバリア材10に
高周波溶着法等によって接着する。この接着は減圧され
た雰囲気下で行なわれることが望ましい。
To manufacture this easy-to-open lid, first the gas barrier material lO
mold into a predetermined shape. Apart from this, the part forming the flange part ■2 of the plastic layer 11, the pushing plate part 15
The part where the and tab 17 are integrated, and the covering plate part 16
The parts are individually injection molded. Then, after combining these injection molded products, they are bonded to the gas barrier material 10 by high frequency welding or the like. It is desirable that this bonding be carried out under a reduced pressure atmosphere.

この5開封性蓋を開封するには、第2図に示すように、
タブ+7を引き上げる。すると被開封部I3が押突板部
15と被覆板部16との間で屈曲して押裂板fi15の
円弧状の端縁が押し下げられ、これによりガスバリア材
10が弱化線】4の部分で押し裂かれる。この後つづい
てタブ】7を引っ張ると、弱化線14に沿ってガスバリ
ア材10が切り裂かれ、蓋が開封される。
To open this 5-openable lid, as shown in Figure 2,
Pull up tab +7. Then, the unsealed part I3 is bent between the pushing plate part 15 and the covering plate part 16, and the arcuate edge of the pushing plate fi15 is pushed down, thereby pushing the gas barrier material 10 at the weakened line ]4. Torn apart. When the tab 7 is subsequently pulled, the gas barrier material 10 is torn along the weakened line 14, and the lid is opened.

この易開封性蓋では、タブI7が被開封部13の押突板
部15と一体物なので、タブI7の押突板部I5に対す
る取り付は強度は極めて強固である。従ってこの易開封
性蓋によれば、開封時のタブI7の脱落を防止できる。
In this easy-to-open lid, since the tab I7 is integrated with the push-out plate part 15 of the unsealed part 13, the attachment of the tab I7 to the push-out plate part I5 is extremely strong. Therefore, this easy-to-open lid can prevent the tab I7 from falling off when the lid is opened.

またこの易開封性蓋は、プラスチック層11を為す各成
形品を個別に成形して組み合わせた後、賦形されたガス
バリア材に高周波溶着することによって簡単に製造でき
るので、賦形されたガスバリア材を金型にインサートし
てプラスチック層を成形していた従来の易開封性蓋と比
較して、成形用金型賞用の低減および生産性の向上を図
ることかできる。
In addition, this easy-to-open lid can be easily manufactured by individually molding the molded products that make up the plastic layer 11, combining them, and then high-frequency welding them to the shaped gas barrier material. Compared to conventional easy-open lids in which a plastic layer is molded by inserting the lid into a mold, it is possible to reduce the amount of mold used and improve productivity.

(実施例2) 第3図ないし第6図は、本発明の易開封性蓋の第2実施
例を示すものである。
(Example 2) Figures 3 to 6 show a second example of the easy-to-open lid of the present invention.

この易開封性蓋においては、押突板部15が弱化!!1
4に沿ってリング状に形成されている。そして、被覆板
部16は円形となっている。
In this easy-to-open lid, the push plate portion 15 is weakened! ! 1
It is formed into a ring shape along the line 4. The covering plate portion 16 has a circular shape.

押突板部I5の一端部にはタブ17が一体に設けられて
いる。そしてこのタブ17が取り付けられた部分は押突
始端部22とされている。そしてこの押突始端部22は
ヒンジ部18.18によって、押突板部15の他の部分
と仕切られている。
A tab 17 is integrally provided at one end of the pushing plate portion I5. The portion to which this tab 17 is attached is defined as a protrusion starting end 22. This protrusion starting end 22 is separated from other parts of the protrusion plate portion 15 by a hinge portion 18.18.

この例てはヒンジ部18.18を設ける部分が、押突始
端部22のタブ17が連設された位置の内周線の接線方
向に沿う位置に設定されている。このヒンジ部18.1
8は、浅い溝を刻設することによって形成されている。
In this example, the portion where the hinge portion 18.18 is provided is set at a position along the tangential direction of the inner circumferential line of the position where the tab 17 of the protrusion starting end portion 22 is connected. This hinge part 18.1
8 is formed by carving a shallow groove.

この押突板部15には、フランジ部12の内周側に形成
された小段部19に掛かる外側小フランジ20と、被覆
板部16に掛かるの内側小フランツ21とが形成されて
いる。これら小フランジ20.21は、前記押突始端部
22とヒンジ部1818を避けて形成されている。
This pushing plate portion 15 is formed with an outer small flange 20 that extends over a small step portion 19 formed on the inner peripheral side of the flange portion 12, and an inner small flange 21 that extends over the cover plate portion 16. These small flanges 20.21 are formed so as to avoid the protrusion starting end 22 and the hinge portion 1818.

前記被覆板部16は、第5図に示すように、フランツ部
12をなすプラスチック層11と薄いランナ一部23・
・を介して連設されている。
As shown in FIG. 5, the covering plate portion 16 includes a plastic layer 11 forming the flannel portion 12 and a thin runner portion 23.
・It is connected via.

つぎにこの易開封性蓋の製造方法を説明する。Next, a method of manufacturing this easy-to-open lid will be explained.

この易開封性蓋を製造するには、押突板部15とタブ1
7とが一体となったもの(第6図参照)、およびフラン
ツ部12のプラスチック層11と被覆板部16とかラン
ナ一部23・・を介して一体となり1ニもの(第5図参
照)をそれぞれ射出成形し、これらを組み合わせたあと
、別途賦形したガスバリア材10に高周波溶着する。
In order to manufacture this easy-to-open lid, it is necessary to
7 (see Fig. 6), and one (see Fig. 5) which is integrated through the plastic layer 11 of the flange part 12 and the covering plate part 16, the runner part 23, etc. After injection molding and combining them, they are high-frequency welded to a separately shaped gas barrier material 10.

この易開封性蓋を開封するには、まずタブ17の一端を
引き上げる。すると押突板部15がヒンジ部18.18
の部分で屈曲して押突始端部22が押し下げられ、その
外周縁でガスバリア層11が押し裂かれる。この後続い
てタブ17を引っ張ると、弱化線14に沿ってガスバリ
ア層11が切り裂かれ、被開封部13が切り取られる。
To open this easy-open lid, first pull up one end of the tab 17. Then, the pushing plate part 15 moves to the hinge part 18.18.
The protrusion starting end 22 is bent at the portion shown in FIG. When the tab 17 is subsequently pulled, the gas barrier layer 11 is torn along the weakened line 14, and the unsealed portion 13 is cut off.

この例の易開封性においては、前記実施例1のものと同
様の作用効果を得られる他、押突板部I5に設けられた
小フランジ20.21によって、押突板部15とフラン
ジ部12との境のスリット(弱化線14)の大部分、お
よび押突板部15と被覆板部16との境のスリットの大
部分が覆われるので、これらのスリットに外部から針等
を刺し込むのを阻止できる。従ってこの易開封性蓋は、
店頭におけるいたつらを受は難いものとなる。
Regarding the ease of opening of this example, in addition to obtaining the same effect as that of the first embodiment, the small flange 20.21 provided on the pushing plate part I5 allows the pushing plate part 15 and the flange part 12 to be connected easily. Since most of the boundary slits (weakening lines 14) and most of the boundary slits between the pushing plate part 15 and the covering plate part 16 are covered, it is possible to prevent a needle or the like from being inserted into these slits from the outside. . Therefore, this easy-to-open lid
It will be difficult to accept it at the store.

「発明の効果」 以上説明したように本発明の易開封性蓋は、被開封部の
一部を他の部分とは別部材としたものなので、当該別部
材とタブを一体に成形することができた。そしてこのよ
うに当該別部材とタブを一体に成形することによって、
その結合状態を最良な状態とすることができた。
"Effects of the Invention" As explained above, in the easy-to-open lid of the present invention, the part to be opened is a separate member from the other parts, so the separate member and the tab can be integrally molded. did it. By integrally molding the separate member and the tab in this way,
We were able to achieve the best possible bonding state.

従って本発明の易開封性蓋では、タブの押突板部に対す
る取り付は強度が極めて大となり、開封時にタブが取れ
てしまうような事故を確実に防止できる。
Therefore, in the easy-to-open lid of the present invention, the tab is attached to the protrusion plate with extremely high strength, and accidents such as the tab coming off when the lid is opened can be reliably prevented.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の5開封性蓋の一実施例を示す一部断面
視した斜視図、第2図は同実施例の開封時の状態を示す
断面図1、第3図は本発明の5開封性蓋の第2の実施例
を示す平面図、第4図は同実施例を示す断面図、第5図
は同実施例の易開封性蓋を構成するフランツ部のプラス
チック層と被覆板部とが一体成形された部材を示す平面
図、第6図は同実施例の易開封性蓋を構成する押突板部
とタブとが一体成形された部材を示す平面図、第7図は
従来の易開封性蓋を示す一部断面視した斜視図である。 lO・ガスバリア材、11・ プラスチック層、13−
被開封部、14・弱化線、I5・・−押突板部、16・
被覆板部、17・タブ。
FIG. 1 is a partially sectional perspective view showing an embodiment of the 5-openable lid of the present invention, FIG. 2 is a cross-sectional view 1 showing the state of the same embodiment when opened, and FIG. 5 is a plan view showing the second embodiment of the easy-to-open lid, FIG. 4 is a cross-sectional view of the same embodiment, and FIG. 5 is a plastic layer and cover plate of the flange part constituting the easy-to-open lid of the same embodiment. FIG. 6 is a plan view showing a member in which the push plate part and tab are integrally molded, which constitutes the easy-to-open lid of the same embodiment. FIG. 7 is a plan view showing a member in which the tab and tab are integrally molded. FIG. 2 is a perspective view, partially in section, showing the easy-open lid of FIG. lO gas barrier material, 11. Plastic layer, 13-
Unsealed part, 14・Weakening line, I5...-Pushing plate part, 16・
Cover plate section, 17 tab.

Claims (1)

【特許請求の範囲】[Claims] ガスバリア材上にプラスチック層が積層され、該プラス
チック層の中央部に弱化線で囲繞された被開封部が形成
され、この被開封部に開封時に引っ張るタブが設けられ
てなる易開封性蓋において、前記被開封部のうち弱化線
に隣接する部分の少なくとも一部を他の部分とは別部材
として形成し、当該別部材と前記タブとを一体物とした
ことを特徴とする易開封性蓋。
An easy-to-open lid in which a plastic layer is laminated on a gas barrier material, an unsealed part surrounded by a line of weakness is formed in the center of the plastic layer, and a tab that is pulled when opening the lid is provided on the unsealed part, An easy-to-open lid characterized in that at least a part of the portion adjacent to the weakened line of the unsealed portion is formed as a separate member from other parts, and the separate member and the tab are integrated.
JP02078397A 1990-03-27 1990-03-27 Easy-open lid Expired - Fee Related JP3085683B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP02078397A JP3085683B2 (en) 1990-03-27 1990-03-27 Easy-open lid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP02078397A JP3085683B2 (en) 1990-03-27 1990-03-27 Easy-open lid

Publications (2)

Publication Number Publication Date
JPH03289441A true JPH03289441A (en) 1991-12-19
JP3085683B2 JP3085683B2 (en) 2000-09-11

Family

ID=13660888

Family Applications (1)

Application Number Title Priority Date Filing Date
JP02078397A Expired - Fee Related JP3085683B2 (en) 1990-03-27 1990-03-27 Easy-open lid

Country Status (1)

Country Link
JP (1) JP3085683B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0956958A2 (en) * 1998-04-28 1999-11-17 Canon Kabushiki Kaisha Ink jet recording apparatus
CN111671444A (en) * 2014-08-07 2020-09-18 贝克顿·迪金森公司 Integrated safety tube seal with membrane element

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0956958A2 (en) * 1998-04-28 1999-11-17 Canon Kabushiki Kaisha Ink jet recording apparatus
EP0956958A3 (en) * 1998-04-28 2001-01-24 Canon Kabushiki Kaisha Ink jet recording apparatus
US6460984B1 (en) 1998-04-28 2002-10-08 Canon Kabushiki Kaisha Liquid supply system, liquid container, head cartridge, ink jet cartridge, liquid supply container, method for coupling the head cartridge with the liquid supply container, communication unit used for the liquid supply system, ink jet recording apparatus provided with the ink jet cartridge opening/closing valve used for the liquid container, and liquid supply container provided with the opening/closing valve
CN111671444A (en) * 2014-08-07 2020-09-18 贝克顿·迪金森公司 Integrated safety tube seal with membrane element
CN111671444B (en) * 2014-08-07 2024-04-16 贝克顿·迪金森公司 Integrated safety tube seal with membrane element

Also Published As

Publication number Publication date
JP3085683B2 (en) 2000-09-11

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