EP0729895A2 - Kunststoffkappe - Google Patents

Kunststoffkappe Download PDF

Info

Publication number
EP0729895A2
EP0729895A2 EP96301387A EP96301387A EP0729895A2 EP 0729895 A2 EP0729895 A2 EP 0729895A2 EP 96301387 A EP96301387 A EP 96301387A EP 96301387 A EP96301387 A EP 96301387A EP 0729895 A2 EP0729895 A2 EP 0729895A2
Authority
EP
European Patent Office
Prior art keywords
cap
ring member
skirt
proper
ring
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
EP96301387A
Other languages
English (en)
French (fr)
Other versions
EP0729895A3 (de
EP0729895B1 (de
Inventor
Hidehiko c/o Japan Crown Cork Co. Ltd. Ohmi
Tateo c/o Japan Crown Cork Co. Ltd. Kubo
Mitsuo c/o Japan Crown Cork Co. Ltd. Kumata
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.)
Nippon Closures Co Ltd
Original Assignee
Japan Crown Cork 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 Japan Crown Cork Co Ltd filed Critical Japan Crown Cork Co Ltd
Publication of EP0729895A2 publication Critical patent/EP0729895A2/de
Publication of EP0729895A3 publication Critical patent/EP0729895A3/de
Application granted granted Critical
Publication of EP0729895B1 publication Critical patent/EP0729895B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS 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
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/32—Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS 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
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/32—Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
    • B65D41/46—Snap-on caps or cap-like covers
    • B65D41/48—Snap-on caps or cap-like covers non-metallic, e.g. made of paper or plastics
    • B65D41/485—Snap-on caps or cap-like covers non-metallic, e.g. made of paper or plastics with integral internal sealing means

Definitions

  • the present invention relates to a resin cap having excellent sealing reliability and can openability, and more specifically, to a resin cap which can form reliable sealing and can be easily and exactly opened and has tamper-evident (TE) characteristics.
  • TE tamper-evident
  • a resin cap can be integrally molded, and has excellent moldability and flexibility, it can be fixed to a mouth portion of a container by a stopping operation and has been used heretofore in various forms.
  • Japanese Patent Publication No. 10555/1976 describes an unfair act-preventing closure composed of a synthetic resin having a handle on the outer surface of a skirt wall.
  • the handle of this closure is spaced from an outer circumferential surface of the skirt wall and surrounding it. It is not a complete ring but arcuate and both its end portions are firmly fixed to the outer surface of the skirt wall.
  • the inner surface of the handle is connected to the outer surface of the skirt wall by a plurality of easily breakable connecting pieces formed circumferentially at suitable distances.
  • the prior art is significant because it provides a plastic cap which can be opened by hand without requiring any particular tool such as a cap opener and to which an unfair act-preventing function is imparted.
  • a cap opener provides a plastic cap which can be opened by hand without requiring any particular tool such as a cap opener and to which an unfair act-preventing function is imparted.
  • Circumferential protrusions are formed on the inner surface of the skirt wall, and when these protrusions are sealed with the neck portion of the container, the container is sealed.
  • the skirt wall cannot easily be turned up, and the openability of the can becomes unsatisfactory. Since the protrusions for securing sealability are not formed over the entire circumference of the inner surface of the skirt wall, the closure of the above prior art has unsatisfactory sealing reliability.
  • Another object of the invention is to provide a resin cap in which in a stopping action, a ring-like member protects a skirt portion of a cap proper, in a closure-closed condition, the ring member adheres intimately to the outer surface of the skirt portion of the cap proper to maintain sealability, the ring-like member is removed at the time of opening the cap, the skirt portion can be easily removed from the mouth portion of the container, and in addition, the ring-like member has tamper-evident characteristics.
  • a cap made from resin which comprises a cap proper comprising a top panel and a skirt having a protrusion engaging with a mouth of a vessel at an interface thereof, and a ring member formed integrally with the cap proper so as to cover an outer surface of the skirt, wherein a plurality of slits elongating in an axial direction are provided in the skirt at an interval into a circumferential direction, the skirt and the ring member are separated by cutting faces but interconnected with a plurality of frangible bridges, if necessary, and with a hinge, and an outer surface of the skirt and an inner surface of the ring member are closely contacted with each other at the cutting portion.
  • an opening tab is preferably formed in a part of the ring-like member.
  • the skirt portion of the cap proper and the ring member are preferably formed by injection- or compression molding them integrally, thereafter making a cut by a cutter between the two to separate a portion excluding a bridge portion or further a connecting portion.
  • the cap of the present invention is composed of a skirt portion in the cap proper and a ring member provided so as to cover the outer surface of the skirt portion, the skirt portion of the cap proper is provided with a plurality of slits extending in an axial direction at intervals in a circumferential direction, the skirt portion of the cap proper is separated from the ring member via a cutting face, the skirt portion and the ring member are integrally formed via a plurality of frangible bridges or further connecting portions on the upper side or under side of the cutting faces, and the outside surface of the skirt portion of the cap proper and the inner surface of the ring member are intimately adhered at a portion of the cutting faces.
  • the skirt portion of the cap proper is provided with a plurality of slits extending in an axial direction at intervals in a circumferential direction whereby the skirt portion is broadened diametrically outwardly at the time of cap opening so that the cap proper can be easily removed from the mouth portion of the container.
  • the skirt portion of the cap proper is separated from the ring member via a cutting face, but they are integrally molded through a plurality of frangible bridges or further connecting portions on the upper side or the lower side from the cutting face and the outer surface of the skirt portion of the cap proper and the inner surface of the ring member are adhered intimately at a portion of the cutting face.
  • the skirt portion of the cap proper at least in the closed state is circumferentially bundled and fixed by the ring member so that the skirt portion is prevented from broadening outwardly and accurate sealability against the mouth portion of the container is maintained.
  • This feature is especially important in the case of the cap of the present invention which is provided with axially extending slits in the skirt portion.
  • the slits at the skirt portion act so as to weaken the engaging state between the mouth portion of the container and the protrusions of the skirt portion, but as a result of the action of circumferentially bundling and fixing by the ring member, the engaging state becomes firm and accurate.
  • an opening tab is formed in a part of the ring member, divergence occurs between the ring member and the skirt portion at the cutting face by pushing up or down the tab whereby the bridge portion connecting the cap proper with the ring member is cut off by a shearing force. Because slits are formed in the skirt portion of the cap proper, when the ring member is removed from the skirt portion, the skirt portion is freely broadened diametrically outwardly. Thus, the cap proper is easily eliminated from the mouth portion of the container and can be opened easily without using a tool.
  • the strength of the opening tab is reinforced, or its position can be clearly shown.
  • the frangible bridge portions may be formed, whereby the cap proper may be separated from the ring member in opening the cap.
  • the cap proper may be separated from the ring member in opening the cap.
  • tamper-evident characteristics become more marked.
  • the lower end of the skirt portion is pushed up by a finger whereby by the existence of slits, the cap proper can be easily opened.
  • the top panel portion of the connecting portion side may be provided with partial weakened portions.
  • the top panel portion of the cap is cracked, and one can learn the performance of an unfair opening.
  • a total circumferential ring or intermittent rings which project upwardly into an outer circumferential portion of the top panel portion may be formed, whereby it can be prevented from causing the trouble when the containers with the cap are loaded with each other.
  • the contained solution is a carbonated beverage, doming occurs on the top panel of the cap. Accordingly, when such containers are loaded, the top panel portion which has been domed is pressed, and the engagement protrusion of the skirt portion is broadened and the sealing reliability is decreased, and as a result of forming the above ring, such an inconvenience can be prevented.
  • the ring member 2 is not divided and it is provided so as to cover at least a part of the outer surface of the skirt portion 4 in the form of a continuous ring.
  • the skirt portion 4 of the cap proper 1 covered with the ring members 2 is provided with a plurality of slits or cuts 9 extending in an axial direction at intervals in a circumferential direction.
  • the skirt portion 4 of the cap proper 1 and the ring member 2 are separated via the cutting face 10, and the skirt portion 4 and the ring member 2 are integrally formed via a plurality of frangible bridge portions 11 and unbreakable connecting portions (hinge) 12 which are below the cutting face 10.
  • the plurality of frangible bridges 11 or the linking portions 12 are provided for linking the skirt portion 4 of the cap proper and the ring member 2 below the cutting face 10, the engraving of the cutting face 10 is prevented from adversely affecting the bridge portions 11 or the connecting portions 12. Because at the time of closing the cap the outer surface of the skirt portion 4 of the cap proper is adhered intimately to the inner surface of the ring member 2 at a portion of the cutting face 10, an outer force is prevented from acting on the breakable bridge portions 11, and the protection of the bridge portions 11 is perfect at the time of closing the cap.
  • the lower end 15 of the ring member 2 is positioned below the lower end 16 of the skirt portion 4 of the cap proper.
  • the lower end 16 of the skirt portion of the cap proper is hidden by the ring member 2, and therefore, when an attempt is made to open the cap by inserting an instrument into the lower end 16 of the skirt portion, the bridge portions 11 are broken, and the fact of opening the cap can be known and tamper-evident characteristics can be increased.
  • the lower end 15 of the ring member 2 suitably extends downwardly over about 0.8 to 1.2 mm below the lower end 16 of the skirt portion.
  • a gas-barrier material 24 may be provided by insert molding in the top panel portion of the inside surface of the inner ring 8. This makes it possible to prevent permeation of the gas through the plastic cap wall and to increase the preservability of the contents.
  • the gas-barrier material include, for example, metal foils such as aluminum foil, and a gas-barrier resin such as an ethylene /vinyl alcohol copolymer, a vinyl chloride resin, a vinylidene chloride resin, nylon resin, and gas-barrier polyesters.
  • the bridge portion 11 and the connecting portion 12 are provided below the cutting face 10, but in the present invention, the bridge portion and the connecting portion may be provided above the cutting face.
  • the constructions of the individual parts are the same as explained hereinabove, but the bridge portion 11 and the connecting portion 12 are formed above the cutting surface 10.
  • the bridge portion 11 can be seen from outside at a first sight, and it becomes advantageous that the fact of opening becomes clearer.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
EP96301387A 1995-03-03 1996-02-29 Kunststoffkappe Expired - Lifetime EP0729895B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP44431/95 1995-03-03
JP4443195 1995-03-03
JP04443195A JP3492007B2 (ja) 1995-03-03 1995-03-03 キャップ

Publications (3)

Publication Number Publication Date
EP0729895A2 true EP0729895A2 (de) 1996-09-04
EP0729895A3 EP0729895A3 (de) 1997-02-26
EP0729895B1 EP0729895B1 (de) 2003-11-05

Family

ID=12691312

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96301387A Expired - Lifetime EP0729895B1 (de) 1995-03-03 1996-02-29 Kunststoffkappe

Country Status (7)

Country Link
EP (1) EP0729895B1 (de)
JP (1) JP3492007B2 (de)
KR (1) KR100436630B1 (de)
CN (1) CN1071254C (de)
DE (1) DE69630551T2 (de)
IN (1) IN192642B (de)
SA (1) SA96170026A (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19712364A1 (de) * 1997-03-25 1998-10-01 Bericap Gmbh & Co Kg Schnappverschluß
WO1998046492A1 (en) * 1997-04-17 1998-10-22 The Procter & Gamble Company Improved plastic bottle closure
EP3210903A4 (de) * 2014-10-21 2018-05-02 Nippon Closures Co., Ltd. Kunstharzbehälterdeckel

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5294812B2 (ja) * 2008-11-27 2013-09-18 株式会社丸一 エアゾール容器用キャップ
JP5458203B2 (ja) * 2013-04-26 2014-04-02 株式会社丸一 エアゾール容器用キャップ
JP6322446B2 (ja) * 2014-03-04 2018-05-09 日本クロージャー株式会社 合成樹脂製容器蓋
JP6317153B2 (ja) * 2014-03-26 2018-04-25 日本クロージャー株式会社 合成樹脂製容器蓋
JP6294723B2 (ja) * 2014-03-26 2018-03-14 日本クロージャー株式会社 容器と容器蓋との組み合わせ
JP6254470B2 (ja) * 2014-03-26 2017-12-27 日本クロージャー株式会社 合成樹脂製容器蓋
JP6254471B2 (ja) * 2014-03-26 2017-12-27 日本クロージャー株式会社 合成樹脂製容器蓋
JP6438824B2 (ja) * 2015-03-31 2018-12-19 日本クロージャー株式会社 合成樹脂製容器蓋

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1197164A (fr) * 1958-05-27 1959-11-27 Rical Sa Capsule pour bouchage de bouteilles devant résister à une pression interne
CH430479A (de) * 1963-12-05 1967-02-15 Bruehlmann Vorm Jannach U Brue Aus elastischem Werkstoff bestehender Verschluss für Gefässe mit einer Hinterschneidung an der Mündung
FR2141585A1 (de) * 1971-06-17 1973-01-26 Somepla Sa
US3986627A (en) * 1974-12-17 1976-10-19 Refil Aktiengesellschaft Closure
GB2085854A (en) * 1980-09-26 1982-05-06 Johnsen Jorgensen Plastics Ltd An improved container closure
GB2086361A (en) * 1980-09-26 1982-05-12 Johnsen Jorgensen Plastics Ltd An improved container closure
DE3017839A1 (de) * 1980-05-09 1982-11-25 Hans 5463 Unkel Simon Verschlusskappe fuer flaschen
DE8801621U1 (de) * 1987-02-23 1988-05-11 Asepta AG, Kronbühl Behälter mit Deckel

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1068286C (zh) * 1992-06-22 2001-07-11 李贞旻 合成树脂制成的瓶盖

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1197164A (fr) * 1958-05-27 1959-11-27 Rical Sa Capsule pour bouchage de bouteilles devant résister à une pression interne
CH430479A (de) * 1963-12-05 1967-02-15 Bruehlmann Vorm Jannach U Brue Aus elastischem Werkstoff bestehender Verschluss für Gefässe mit einer Hinterschneidung an der Mündung
FR2141585A1 (de) * 1971-06-17 1973-01-26 Somepla Sa
US3986627A (en) * 1974-12-17 1976-10-19 Refil Aktiengesellschaft Closure
DE3017839A1 (de) * 1980-05-09 1982-11-25 Hans 5463 Unkel Simon Verschlusskappe fuer flaschen
GB2085854A (en) * 1980-09-26 1982-05-06 Johnsen Jorgensen Plastics Ltd An improved container closure
GB2086361A (en) * 1980-09-26 1982-05-12 Johnsen Jorgensen Plastics Ltd An improved container closure
DE8801621U1 (de) * 1987-02-23 1988-05-11 Asepta AG, Kronbühl Behälter mit Deckel

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19712364A1 (de) * 1997-03-25 1998-10-01 Bericap Gmbh & Co Kg Schnappverschluß
WO1998046492A1 (en) * 1997-04-17 1998-10-22 The Procter & Gamble Company Improved plastic bottle closure
EP3210903A4 (de) * 2014-10-21 2018-05-02 Nippon Closures Co., Ltd. Kunstharzbehälterdeckel
RU2660044C1 (ru) * 2014-10-21 2018-07-04 Ниппон Клоужерс Ко., Лтд. Крышка контейнера из синтетической смолы
US10214324B2 (en) 2014-10-21 2019-02-26 Nippon Closures Co., Ltd. Synthetic resin container lid

Also Published As

Publication number Publication date
SA96170026A (ar) 2005-12-03
CN1071254C (zh) 2001-09-19
JPH08244802A (ja) 1996-09-24
EP0729895A3 (de) 1997-02-26
EP0729895B1 (de) 2003-11-05
IN192642B (de) 2004-05-08
KR100436630B1 (ko) 2004-07-30
JP3492007B2 (ja) 2004-02-03
DE69630551D1 (de) 2003-12-11
CN1137012A (zh) 1996-12-04
DE69630551T2 (de) 2004-09-23
KR960034023A (ko) 1996-10-22

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