JP2000344262A - Cap with built-in unsealing blade - Google Patents

Cap with built-in unsealing blade

Info

Publication number
JP2000344262A
JP2000344262A JP11160815A JP16081599A JP2000344262A JP 2000344262 A JP2000344262 A JP 2000344262A JP 11160815 A JP11160815 A JP 11160815A JP 16081599 A JP16081599 A JP 16081599A JP 2000344262 A JP2000344262 A JP 2000344262A
Authority
JP
Japan
Prior art keywords
opening
cap
blade
unsealing
sealing film
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
JP11160815A
Other languages
Japanese (ja)
Other versions
JP3867445B2 (en
Inventor
Akitaka Iwasaki
晃孝 岩崎
Norikazu Kakigi
典一 柿木
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.)
Toppan Inc
Original Assignee
Toppan Printing Co Ltd
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 Toppan Printing Co Ltd filed Critical Toppan Printing Co Ltd
Priority to JP16081599A priority Critical patent/JP3867445B2/en
Publication of JP2000344262A publication Critical patent/JP2000344262A/en
Application granted granted Critical
Publication of JP3867445B2 publication Critical patent/JP3867445B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D5/00Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42Details of containers or of foldable or erectable container blanks
    • B65D5/72Contents-dispensing means
    • B65D5/74Spouts
    • B65D5/746Spouts formed separately from the container
    • B65D5/747Spouts formed separately from the container with means for piercing or cutting the container wall or a membrane connected to said wall
    • B65D5/748Spouts formed separately from the container with means for piercing or cutting the container wall or a membrane connected to said wall a major part of the container wall or membrane being left inside the container after the opening

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)
  • Closures For Containers (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a cap with built-in unsealing blades unsealing in a good manner a sealed film using a ceramic deposition film. SOLUTION: A cap is protruded by being externally fitted on an injection opening of a paper container for a liquid sealed with a sealing film, and formed of a cap main body with a movable built-in unsealing cylindrical body and a cap, and when the cap screwed and fitted on the cap main body is removed, the unsealing cylindrical body is moved downward by the rotation of the cap to break the unsealing film, and a plurality of triangle unsealing blades are hung continuously through notch sections 121 in the horizontal direction on a lower end face 111 of a cylindrical main body 110 of an unsealing cylindrical body 100, and the angles θ of side tapered sections on the side opposite to the unsealing blades 120 provided on both sides of the notch sections are set different respectively.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、清酒、果汁飲料、
調味料などの常温流通の液体用紙容器の頂部に突設され
る開封刃内蔵口栓に関するものである。
TECHNICAL FIELD The present invention relates to sake, fruit juice beverages,
The present invention relates to a spout with a built-in opening blade protruding from the top of a liquid paper container at normal temperature such as a seasoning.

【0002】[0002]

【従来の技術】従来、液体用紙容器は、四角柱状の胴部
をもち、その切り妻屋根形の頂部傾斜板の注出孔に、使
用時の便宜性から、封止及び注出のための口栓が突設さ
れたものが広く使用されていた。
2. Description of the Related Art Conventionally, a liquid paper container has a square pillar-shaped body, and is provided with a gable roof-shaped top inclined plate for discharging and sealing for convenience in use. The one with a spout was widely used.

【0003】この口栓には、使用時に容器を封止してい
る封止フィルムを破断するための開封刃を内蔵した口栓
があり、例えば実公平5−35058号公報で開示され
たものがある。この開封刃を内蔵する口栓は、破断可能
なフィルム(本発明では、封止フィルム)で封止した液
体用紙容器の注出孔に取着されこの注出孔に対応した円
筒部(本発明では、注出筒)を備える注出口具(本発明
では、口栓本体)と、この注出口具の円筒部に挿入され
下縁に刃部を備える略筒状の開封刃(本発明では、開封
用筒体)と、円筒部を覆うようにして取着されたキャッ
プとからなり、円筒部の内面とこれに相対する開封刃の
外面との両者は、互いに摺接して上下方向に移動可能な
回転防止手段を備えて、開封刃が円筒部に対して上下移
動可能に設けられ、開封刃は、開封刃の筒壁部に上縁か
ら下縁側に向けて傾斜して上方に面する斜面を備え、キ
ャップは、下方に面して開封刃の斜面に摺接する案内斜
面を備える筒体を有して、キャップの回転時に開封刃を
下降可能に設けたものであり、内容物を注出するため
に、キャップを回転させて取り外すときに、例えば図2
(b)に示すように、キャップ(300)の回転により
開封刃(本発明の名称では、開封用筒体)(100)を
降下させ先端に設けられた刃部(本発明では、開封刃)
(120)で容器を封止するフィルム(本発明では、封
止フィルム)(400)を破断して容器を開封するもの
であった。
[0003] The plug includes a plug having a built-in opening blade for breaking a sealing film sealing a container at the time of use. For example, a plug disclosed in Japanese Utility Model Publication No. 5-35058 is disclosed. is there. The spout incorporating the opening blade is attached to an ejection hole of a liquid paper container sealed with a rupturable film (in the present invention, a sealing film) and a cylindrical portion corresponding to the ejection hole (the present invention). Then, a spouting device (in the present invention, a plug body) including a spouting tube, and a substantially tubular opening blade (in the present invention, inserted into a cylindrical portion of the spouting device and having a blade portion at a lower edge thereof) Opening cylinder) and a cap attached so as to cover the cylindrical portion. Both the inner surface of the cylindrical portion and the outer surface of the opening blade opposite thereto can slide in contact with each other and move in the vertical direction. The opening blade is provided so as to be vertically movable with respect to the cylindrical portion, and the opening blade is inclined upward from the upper edge toward the lower edge side on the cylindrical wall portion of the opening blade, and the slope faces upward. The cap has a cylindrical body having a guide slope facing downward and slidingly contacting the slope of the opening blade. Are those provided when the rotation can lower the opening edge, in order to dispense the contents, when removing by rotating the cap, for example, FIG. 2
As shown in (b), the opening blade (opening cylinder in the name of the present invention) (100) is lowered by the rotation of the cap (300), and the blade portion (opening blade in the present invention) provided at the tip end.
In (120), the film for sealing the container (in the present invention, the sealing film) (400) was broken to open the container.

【0004】[0004]

【発明が解決しようとする課題】ところで、封止フィル
ムには、ガスバリア性が求められるため、従来、アルミ
ニウム箔をバリア層に用いた積層フィルムが使用されて
いた。ところが、この封止フィルムは、使用後の廃棄処
理において、アルミニウム箔の残存滓が焼却時に残った
り、再利用が難しく、近年の環境保全の立場から好まし
くない面があった。そこで、最近では、封止フィルムと
して、アルミニウム箔をバリア層に用いた従来の積層フ
ィルムの代替として、ポリエチレンテレフタレートフィ
ルムに酸化ケイ素などを蒸着したセラミック蒸着フィル
ムが使用される傾向にある。しかしながら、このセラミ
ック蒸着フィルムを用いた封止フィルムは、従来のアル
ミニウム箔を用いた封止フィルムと異なり伸びがあり、
刃高が同一な複数個の開封刃を設けた又は刃高の高い開
封刃を中心にして左右に小差をもって順次低い複数個の
開封刃を設けた従来の開封刃内蔵口栓では、封止フィル
ムの伸びにより封止フィルムを開封刃で破断しにくいこ
とがあり、商品としての商品価値を損なうことがあっ
た。
However, since a gas barrier property is required for a sealing film, a laminated film using an aluminum foil as a barrier layer has been conventionally used. However, in this sealing film, in the disposal treatment after use, the residue of the aluminum foil remains at the time of incineration, and it is difficult to reuse the sealing film. Accordingly, recently, as a sealing film, as a substitute for a conventional laminated film using an aluminum foil as a barrier layer, a ceramic vapor-deposited film in which silicon oxide or the like is vapor-deposited on a polyethylene terephthalate film has tended to be used. However, the sealing film using this ceramic vapor deposition film has elongation unlike the sealing film using the conventional aluminum foil,
In the conventional opening-blade built-in spout provided with a plurality of opening blades having the same blade height or provided with a plurality of lower opening blades sequentially with a small difference left and right around the opening blade having a high blade height, sealing is performed. The sealing film may not be easily broken by the opening blade due to the elongation of the film, and the commercial value of the product may be impaired.

【0005】本発明は、上述の従来の開封刃内蔵口栓の
問題を解決したものであり、セラミック蒸着フィルムを
用いた封止フィルムでも、開封が良好な開封刃内蔵口栓
を提供する。
The present invention has solved the above-mentioned problem of the conventional plug with a built-in opening blade, and provides a plug with a built-in opening blade with a good opening even with a sealing film using a ceramic vapor deposition film.

【0006】[0006]

【課題を解決するための手段】すなわち、本発明の第1
の発明は、封止フィルムで封止された液体用紙容器の注
出孔に外付けで突設され、開封用筒体を移動可能に内蔵
する口栓本体とキャップとからなり、前記口栓本体に螺
合して装着した前記キャップを取り外すときに、キャッ
プの回転により前記開封用筒体を下方へ移動させて前記
封止フィルムを破断する口栓において、前記開封用筒体
の筒体本体の下端面に、複数個の三角状の開封刃を、水
平方向へ欠刃部をもって連接させて垂設し、前記欠刃部
の両側に設けられた開封刃の対向する側のサイドテーパ
ーの角度を、それぞれ異ならせたことを特徴とする開封
刃内蔵口栓である。
That is, the first aspect of the present invention is as follows.
The invention is characterized in that the plug body comprises a cap body and a cap which are externally protruded from a discharge hole of a liquid paper container sealed with a sealing film and movably incorporates an opening tubular body. At the time of removing the cap screwed into the cap, the cap is rotated to move the opening cylinder downward to break the sealing film. On the lower end surface, a plurality of triangular-shaped opening blades are connected vertically with a notched blade portion in the horizontal direction and vertically provided, and the angle of the side taper on the opposite side of the opening blade provided on both sides of the notched blade portion is set. And a plug with a built-in opening blade, which is different from each other.

【0007】そして、本発明の第2の発明は、液体用紙
容器の口栓取付け孔に内付けで突設され、開封用筒体を
移動可能に内蔵し下端を封止フィルムで封止する口栓本
体とキャップとからなり、前記口栓本体に螺合して装着
した前記キャップを取り外すときに、キャップの回転に
より前記開封用筒体を下方へ移動させて前記封止フィル
ムを破断する口栓において、前記開封用筒体の筒体本体
の下端面に、複数個の三角状の開封刃を、水平方向へ欠
刃部をもって連接させて垂設し、前記欠刃部の両側に設
けられた開封刃の対向する側のサイドテーパーの角度
を、それぞれ異ならせたことを特徴とする開封刃内蔵口
栓である。
In a second aspect of the present invention, there is provided a port which is internally provided and protrudes from a plug mounting hole of a liquid paper container, has an opening tubular body movably incorporated therein, and has a lower end sealed with a sealing film. A plug comprising a plug body and a cap, wherein the cap is rotated to move the unsealing cylinder downward to break the sealing film when removing the cap screwed to the plug body. In the opening tubular body, a plurality of triangular opening blades are vertically connected to a lower end surface of the tubular body of the tubular body with a missing blade portion in the horizontal direction, and provided on both sides of the missing blade portion. A plug with a built-in opening blade, wherein the angle of the side taper on the opposite side of the opening blade is different from each other.

【0008】[0008]

【作用】従来の開封刃内蔵口栓においては、開封時に下
降する開封用筒体の下端に設けられた三角状の複数個の
開封刃によって、まず、封止フィルムが断線円形状に切
られるが、セラミック蒸着フィルムを用いた封止フィル
ムの場合には、フィルムの伸びが大きいため、開封刃で
切られたのち、さらに、開封刃間の谷と開封用筒体の下
端面とにより引っ張って、フィルムを破断することがあ
り、封止フィルムを破断するために大きな力を必要とし
た。
According to the conventional opening plug with a built-in opening blade, the sealing film is first cut into a broken circular shape by a plurality of triangular opening blades provided at the lower end of the opening cylindrical body which descends at the time of opening. In the case of a sealing film using a ceramic vapor-deposited film, since the film has a large elongation, after being cut by the opening blade, it is further pulled by the valley between the opening blade and the lower end surface of the opening cylindrical body, The film could break, requiring a large force to break the sealing film.

【0009】一方、本発明の開封刃内蔵口栓において
は、開封時に下降する開封用筒体の下端に設けられた三
角状の複数個の開封刃によって、まず、封止フィルムが
断線円形状に切られたのち、封止フィルムは、さらに開
封刃の下降にそって伸びるが、欠刃部の両側に設けられ
た開封刃の対向する側のサイドテーパーの角度をそれぞ
れ異にしているため、封止フィルムに掛かる張力のバラ
ンスに対向方向の違いを生じ、この張力のバランスの違
いがきっかけとなってフィルムが破断する。このため、
伸びの大きいセラミック蒸着フィルムを用いた封止フィ
ルムでも、従来の開封刃内蔵口栓の開封刃よりも、封止
フィルムを破断するのに力を必要としない。なお、上述
のサイドテーパーの角度の差が大きいほど封止フィルム
が破断し易い。
On the other hand, in the plug with a built-in opening blade of the present invention, a plurality of triangular opening blades provided at the lower end of the opening cylindrical body which descends at the time of opening first form the sealing film into a broken circular shape. After being cut, the sealing film further extends along with the lowering of the opening blade.However, since the angle of the side taper on the opposite side of the opening blade provided on both sides of the notched blade portion is different, the sealing film is sealed. The balance of the tension applied to the stop film causes a difference in the facing direction, and the difference in the balance of the tension triggers the film to break. For this reason,
Even with a sealing film using a ceramic vapor deposition film having a large elongation, no force is required to break the sealing film as compared with a conventional opening blade of a plug with a built-in opening blade. Note that the sealing film is more easily broken as the difference in the angle of the side taper is larger.

【0010】[0010]

【発明の実施の形態】本発明の一実施形態の開封刃内蔵
口栓(10)は、図2(a)に示すように、開封用筒体
を移動可能に内蔵する口栓本体(200)とこの口栓本
体に螺合して装着するキャップ(300)とからなり、
封止フィルム(400)で封止された液体用紙容器(2
0)の注出孔(21)の周縁部上面に、口栓本体(20
0)の注出筒(210)の下端に周設するフランジ(2
20)の下面を超音波シール法などにより熱融着して接
着する所謂外付けで突設され、図2(b)に示すよう
に、容器を開封するために口栓本体(200)に螺合し
て装着するキャップ(300)を取り外すときに、キャ
ップの取り外し方向の回転により開封用筒体(100)
を下方へ移動させて、封止フィルム(400)を破断し
て開封する口栓である。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A plug (10) with a built-in opening blade according to an embodiment of the present invention is, as shown in FIG. And a cap (300) to be screwed and attached to the plug body,
The liquid paper container (2) sealed with the sealing film (400)
0), the plug body (20) is provided on the upper surface of the periphery of the pouring hole (21).
0), a flange (2) provided around the lower end of the discharge cylinder (210).
The lower surface of 20) is heat-sealed and bonded by an ultrasonic seal method or the like, and is so-called externally attached. As shown in FIG. 2B, a screw is attached to the plug body (200) to open the container. When removing the cap (300) to be fitted together, the opening cylinder (100) is rotated by rotating the cap in the removing direction.
Is moved downward to break and open the sealing film (400).

【0011】また、本発明の他の実施形態の開封刃内蔵
口栓は、開封用筒体を移動可能に内蔵し下端を封止フィ
ルムで封止する口栓本体とキャップとからなり、液体用
紙容器の口栓取付け孔の周縁部内面に、口栓本体の注出
筒の下端に周設するフランジの上面を超音波シール法な
どにより熱融着して接着する所謂内付けで、口栓本体の
注出筒を口栓取付け孔から突出させて取り付けられ、容
器を開封するために口栓本体に螺合して装着するキャッ
プを取り外すときに、キャップの取り外し方向の回転に
より開封用筒体を下方へ移動させて、封止フィルムを破
断して開封する口栓である。
A plug with a built-in opening blade according to another embodiment of the present invention comprises a cap body and a cap, wherein the opening cylindrical body is movably incorporated and the lower end is sealed with a sealing film. A so-called internal body in which the upper surface of a flange provided around the lower end of the spout cylinder of the plug body is heat-sealed and bonded by ultrasonic sealing or the like to the inner surface of the periphery of the plug mounting hole of the container. When the cap is screwed into the plug body to open the container and the cap is removed, the opening cylinder is rotated by turning the cap in the removal direction. It is a stopper that is moved downward to break and open the sealing film.

【0012】そして、本発明の開封刃内蔵口栓の一実施
形態の開封用筒体(100)の開封刃(120)は、図
1(a)及び(b)に示すように、開封用筒体の筒体本
体(110)の下端面に、複数個の三角状の開封刃を、
水平方向へ欠刃部(121)をもって連接させて垂設す
るものであり、欠刃部の両側に設けられた開封刃(12
0a,120b)の対向する側のサイドテーパーの角度
(θa ,θb )を、それぞれ異ならせたものである。な
お、角度の差は、使用する封止フィルムの伸びの度合い
により設定されるものであり、また、欠刃部(121)
を設けるのは、図2(b)に示すように、封止フィルム
(400)を開封用筒体(100)で破断したときに、
封止フィルムの破断片(401)が、容器に収容されて
いる内容物(30)内に脱落しないようにするものであ
る。また、図1(a)及び(b)に示すように、開封用
筒体(100)の筒体本体(110)の外周面には口栓
本体との通常4個の摺動突起(112)を設け、内周面
にはキャップとの通常2個の案内斜面(113)を形成
するものである。そして、開封用筒体は、剛性をもつポ
リプロピレン又はポリスチレンなどの熱可塑性樹脂を用
いて、射出成形法により作製されるものである。
As shown in FIGS. 1 (a) and 1 (b), the opening blade (120) of the opening cylinder (100) according to one embodiment of the plug with a built-in opening blade of the present invention is provided. A plurality of triangular opening blades are provided on the lower end surface of the cylindrical body (110) of the body,
It is connected vertically with a notched blade (121) in the horizontal direction, and is vertically installed. An opening blade (12) provided on both sides of the notched blade is provided.
0a, 120b) have different side taper angles (θ a , θ b ). The angle difference is set according to the degree of elongation of the sealing film to be used.
Is provided when the sealing film (400) is broken by the opening cylinder (100) as shown in FIG. 2 (b).
This is to prevent broken pieces (401) of the sealing film from falling into the contents (30) contained in the container. Also, as shown in FIGS. 1A and 1B, the outer peripheral surface of the tubular body (110) of the opening tubular body (100) usually has four sliding projections (112) with the plug body. , And two guide slopes (113) with the cap are formed on the inner peripheral surface. The opening cylinder is made by injection molding using a rigid thermoplastic resin such as polypropylene or polystyrene.

【0013】なお、上述の本発明の実施形態の開封刃内
蔵口栓は、セラミック蒸着フィルムを封止フィルムとし
て使用した場合に、開封強度が2KgFほど従来の開封
刃内蔵口栓より低かった。
The above-described plug with a built-in opening blade according to the embodiment of the present invention has a lower opening strength of about 2 kgF than a conventional plug with a built-in opening blade when a ceramic vapor deposited film is used as a sealing film.

【0014】[0014]

【発明の効果】本発明の開封刃内蔵口栓は、封止フィル
ムに伸びの大きいセラミック蒸着フィルムを使用して
も、欠刃部の両側に設けられた開封刃の対向する側のサ
イドテーパーの角度をそれぞれ異にしており、この効果
によって、従来の開封刃内蔵口栓とは異なり、開封性が
極めて良好である。
According to the plug with a built-in opening blade of the present invention, the side taper on the opposite side of the opening blade provided on both sides of the cut-off portion can be obtained even if a ceramic vapor-deposited film having large elongation is used for the sealing film. The angles are different from each other, and due to this effect, the opening property is extremely good unlike the conventional plug with a built-in opening blade.

【図面の簡単な説明】[Brief description of the drawings]

【図1】(a)は、本発明の開封刃内蔵口栓の開封用筒
体の一実施形態の側面図であり、(b)は、その外側か
ら見た展開図である。
FIG. 1A is a side view of an embodiment of an opening tubular body of a plug with a built-in opening blade of the present invention, and FIG. 1B is a developed view seen from the outside thereof.

【図2】(a)は、一例の開封刃内蔵口栓を取り付けた
液体用紙容器の開封前の状態を示す説明図であり、
(b)は、開封したときの状態を示す説明図である。
FIG. 2A is an explanatory view showing a state before opening a liquid paper container to which an example of a stopper with a built-in opening blade is attached;
(B) is an explanatory view showing a state at the time of opening.

【符号の説明】[Explanation of symbols]

10……開封刃内蔵口栓 20……液体用紙容器 21……注出孔 30……内容物 100……開封用筒体 110……筒体本体 111……下端面 112……摺動突起 113……案内斜面 120,120a,120b……開封刃 121……欠刃部 200……口栓本体 210……注出筒 220……フランジ 300……キャップ 400……封止フィルム 401……破断片 θa ,θb ……角度DESCRIPTION OF SYMBOLS 10 ... Opening blade built-in opening plug 20 ... Liquid paper container 21 ... Discharge hole 30 ... Contents 100 ... Opening cylinder 110 ... Cylindrical main body 111 ... Lower end surface 112 ... Sliding protrusion 113 ... Guide slopes 120, 120a, 120b Opening blade 121 Missing blade part 200 Plug body 210 Spout cylinder 220 Flange 300 Cap 400 Seal film 401 Fragment θ a , θ b …… Angle

───────────────────────────────────────────────────── フロントページの続き Fターム(参考) 3E060 AA05 AB04 CF04 CF06 EA03 3E084 AA05 AA12 AA34 AB01 BA03 BA08 BA09 CA01 CC03 CC05 DA01 DB12 DC03 DC05 FA09 FB01 FD13 GA04 GB04 GB09 KB01 LA01 LA17 LA25 LB02 LB07  ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3E060 AA05 AB04 CF04 CF06 EA03 3E084 AA05 AA12 AA34 AB01 BA03 BA08 BA09 CA01 CC03 CC05 DA01 DB12 DC03 DC05 FA09 FB01 FD13 GA04 GB04 GB09 KB01 LA01 LA17 LA25 LB02 LB07

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】封止フィルムで封止された液体用紙容器の
注出孔に外付けで突設され、開封用筒体を移動可能に内
蔵する口栓本体とキャップとからなり、前記口栓本体に
螺合して装着した前記キャップを取り外すときに、キャ
ップの回転により前記開封用筒体を下方へ移動させて前
記封止フィルムを破断する口栓において、前記開封用筒
体の筒体本体の下端面に、複数個の三角状の開封刃を、
水平方向へ欠刃部をもって連接させて垂設し、前記欠刃
部の両側に設けられた開封刃の対向する側のサイドテー
パーの角度を、それぞれ異ならせたことを特徴とする開
封刃内蔵口栓。
The invention is characterized in that the plug comprises a cap body and a cap which are externally protruded from a discharge hole of a liquid paper container sealed with a sealing film and movably house an opening cylinder. When removing the cap screwed into the main body, the cap body is rotated to move the opening cylinder downward to break the sealing film. On the lower end face of the, a plurality of triangular opening blades,
The opening blade built-in opening characterized in that the opening blades are connected vertically with the cutting blade portion in the horizontal direction, and the angles of the side tapers on the opposite side of the opening blade provided on both sides of the cutting blade portion are different from each other. plug.
【請求項2】液体用紙容器の口栓取付け孔に内付けで突
設され、開封用筒体を移動可能に内蔵し下端を封止フィ
ルムで封止する口栓本体とキャップとからなり、前記口
栓本体に螺合して装着した前記キャップを取り外すとき
に、キャップの回転により前記開封用筒体を下方へ移動
させて前記封止フィルムを破断する口栓において、前記
開封用筒体の筒体本体の下端面に、複数個の三角状の開
封刃を、水平方向へ欠刃部をもって連接させて垂設し、
前記欠刃部の両側に設けられた開封刃の対向する側のサ
イドテーパーの角度を、それぞれ異ならせたことを特徴
とする開封刃内蔵口栓。
2. A cap body comprising: a cap main body and a cap projecting internally from a cap mounting hole of a liquid paper container, movably house an opening cylinder, and seal a lower end with a sealing film. When removing the cap screwed and attached to the plug body, the cap is rotated to move the opening cylinder downward and break the sealing film. On the lower end face of the body, a plurality of triangular opening blades are connected vertically with a missing blade in the horizontal direction, and are vertically provided.
An opening plug with a built-in opening blade, wherein angles of side tapers on opposite sides of the opening blade provided on both sides of the notched blade portion are different from each other.
JP16081599A 1999-06-08 1999-06-08 Opening blade built-in plug Expired - Fee Related JP3867445B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16081599A JP3867445B2 (en) 1999-06-08 1999-06-08 Opening blade built-in plug

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16081599A JP3867445B2 (en) 1999-06-08 1999-06-08 Opening blade built-in plug

Publications (2)

Publication Number Publication Date
JP2000344262A true JP2000344262A (en) 2000-12-12
JP3867445B2 JP3867445B2 (en) 2007-01-10

Family

ID=15723030

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16081599A Expired - Fee Related JP3867445B2 (en) 1999-06-08 1999-06-08 Opening blade built-in plug

Country Status (1)

Country Link
JP (1) JP3867445B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1396435A1 (en) * 2002-09-09 2004-03-10 Tetra Laval Holdings & Finance S.A. Closable opening device for packages of pourable food products
EP1867571A1 (en) * 2006-06-14 2007-12-19 Ipi S.R.L. A cap for opening/closing containers for pourable products
JPWO2006038251A1 (en) * 2004-09-30 2008-05-15 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 Container with cap

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1396435A1 (en) * 2002-09-09 2004-03-10 Tetra Laval Holdings & Finance S.A. Closable opening device for packages of pourable food products
WO2004022437A2 (en) * 2002-09-09 2004-03-18 Tetra Laval Holdings & Finance Sa Closable opening device for packages of pourable food products
WO2004022437A3 (en) * 2002-09-09 2004-04-22 Tetra Laval Holdings & Finance Closable opening device for packages of pourable food products
CN100360381C (en) * 2002-09-09 2008-01-09 利乐拉瓦尔集团及财务有限公司 Closable opening device for packages of pourable food products
US7484641B2 (en) 2002-09-09 2009-02-03 Tetra Laval Holdings & Finance S.A. Closable opening device for packages of pourable food products
JPWO2006038251A1 (en) * 2004-09-30 2008-05-15 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 Container with cap
EP1867571A1 (en) * 2006-06-14 2007-12-19 Ipi S.R.L. A cap for opening/closing containers for pourable products

Also Published As

Publication number Publication date
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