EP0034997A1 - Capuchon de fermeture pour un récipient - Google Patents

Capuchon de fermeture pour un récipient Download PDF

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Publication number
EP0034997A1
EP0034997A1 EP81810029A EP81810029A EP0034997A1 EP 0034997 A1 EP0034997 A1 EP 0034997A1 EP 81810029 A EP81810029 A EP 81810029A EP 81810029 A EP81810029 A EP 81810029A EP 0034997 A1 EP0034997 A1 EP 0034997A1
Authority
EP
European Patent Office
Prior art keywords
guarantee
reinforcement
guarantee band
closure cap
band
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
EP81810029A
Other languages
German (de)
English (en)
Other versions
EP0034997B1 (fr
Inventor
Albert Obrist
Hans-Werner Breuer
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.)
Albert Obrist AG
Original Assignee
Albert Obrist AG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=4204914&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0034997(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Albert Obrist AG filed Critical Albert Obrist AG
Priority to AT81810029T priority Critical patent/ATE7589T1/de
Publication of EP0034997A1 publication Critical patent/EP0034997A1/fr
Application granted granted Critical
Publication of EP0034997B1 publication Critical patent/EP0034997B1/fr
Expired legal-status Critical Current

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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
    • B65D41/00Caps, 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
    • B65D41/32Caps 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
    • B65D41/34Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt
    • B65D41/3461Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt the tamper element being retracted by heat or by heat and pressure
    • B65D41/3466Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt the tamper element being retracted by heat or by heat and pressure and being integrally connected to the closure by means of bridges
    • 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
    • B65D2401/00Tamper-indicating means
    • B65D2401/15Tearable part of the closure
    • B65D2401/30Tamper-ring remaining connected to closure after initial removal
    • 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
    • B65D2401/00Tamper-indicating means
    • B65D2401/15Tearable part of the closure
    • B65D2401/35Vertical or axial lines of weakness

Definitions

  • the invention relates to a closure cap for a container, which is provided with a guarantee band and is made in one piece with the guarantee band from thermoplastic material by injection molding, the guarantee band being connected to the lower edge of the closure cap via a plurality of predetermined breaking connecting webs is intended to at least partially surround the container neck and which, after the closure cap has been applied to the container neck, can be positively molded and brought into engagement with it by hot deformation.
  • Sealing caps for containers, in particular for bottles, produced in the injection molding process are known and customary in a wide variety of embodiments.
  • the invention has for its object to avoid the disadvantages of the known, in particular to create a closure cap of the type mentioned, the guarantee tape is plasticized even when low heat output is applied without tearing and that can be produced with shapes that fill the Allow shape from the cap and over the predetermined breaking connecting webs in the guarantee tape. According to the invention, this is achieved primarily in that the wall thickness of the guarantee band has a reinforcement in the area between two predetermined breaking connecting webs. This reinforcement, ie thickening of the material, produces various surprising effects.
  • the guarantee tape retains sufficient stability due to the increasing and decreasing material thickness between two predetermined breaking connecting webs, even if the plasticizing temperature is exceeded, for example.
  • this partial shrinkage in a large number of subareas around the scope of the guarantee band is completely sufficient to form-fit the guarantee band on the container.
  • the invention thus creates both a guarantee band, which can be plasticized faster and with less thermal energy in the area between the reinforcements, and a guarantee band, which is more resistant to overheating in a wide range than known guarantee bands.
  • the invention can be implemented particularly advantageously if the reinforcement is provided on the inside of the guarantee band and has an approximately tendon-like course. This allows particularly simple manufacture using the injection molding process.
  • Bottle closures which are placed in fast-running systems and are hot-formed with large temperature tolerances, have shown that the best results can be achieved both functionally and optically if the reinforcement is approximately 10% to 15% of the wall thickness of the guarantee band.
  • a guarantee tape is used which has a wall thickness of approximately 0.35 to 0.45 mm and in which the reinforcement is approximately 0.03 to 0.07 mm.
  • a closure cap 1 is placed on a container neck 2 and is exposed to the flow of a hot air nozzle 3 arranged on the side.
  • the container neck 2 is rotated such that the entire circumference of the closure cap 1 is acted upon by the hot air nozzle 3 in the plane of the guarantee band 4.
  • the guarantee band 4 is plasticized and wraps around an annular bead 5 on the container neck 2.
  • the container neck 2 is closed in a theft-proof manner by the closure cap 1.
  • the guarantee band 4 lies in a form-fitting manner around the container neck 2 and the closure cap 1 can only be removed from the container neck 2 by tearing the predetermined breaking connecting webs 6.
  • Fig. 2 shows a torn guarantee tape 4, in which the connecting webs 6 are torn in the manner described when removing the container neck 2.
  • the multiplicity of connecting webs 6 allows, when the closure cap 1 is sprayed, a mold arrangement which, as shown in FIG. 3 by arrows, is filled from the cap bottom.
  • the liquid thermoplastic material penetrates through the connecting webs 6 in the area of Guarantee band, whereby the individual partial streams x and y, which each result behind the connecting webs 6, meet approximately in the middle between two connecting webs 6.
  • the plastic material In the area of the dividing line 7, in which two partial flows x and y meet, the plastic material requires a greater thickness in order to be mechanically firmly connected in the same way as in the remaining area of the guarantee tape 4, which has a homogeneous and laminar material structure.
  • a material reinforcement 8 is therefore provided in this area, as illustrated in FIGS. 4 to 6.
  • the material reinforcement 8 runs in a wedge shape over the entire length of the guarantee band and decreases from bottom to top. In the top view (FIG. 4), it is clearly recognizable as a tendon-like interruption of the inner wall of the guarantee band 4, which runs in a circular manner. This thickening is particularly easy to achieve because, according to FIG. 6, the inner wall of the guarantee band 4 is slightly conical in the remaining area runs outwards and the reinforcement means a simple transition of the inner wall to a cylindrical course.
  • the material reinforcement can also be achieved in a different way, but such a design has proven particularly useful for manufacturing reasons and in view of the fact that the closure cap 1 can be easily removed from an injection molding tool.
  • the wall thickness of the guarantee tape 4 is 0.4 mm at the widest point.
  • the reinforcement 8 is 0.05 mm at the thickest point, so that the total wall thickness in the area of the reinforcement 8 increases to 0.45 mm.
  • the guarantee band 4 When heated by a hot air nozzle 3, the guarantee band 4 is softened particularly strongly in the sections between the connecting webs 6 and the material reinforcements 8, with a shrinking process of the entire guarantee band 4 being care should be taken before shrinking occurs in the area of the reinforcement 8.
  • the shrinking that is to say the reduction in the diameter of the guarantee band, is achieved by the combined action of heat and pressure by hot air flowing out of the nozzle 3. Even a segment-like softening of the guarantee band 4 in the sections between the reinforcements 8 therefore ensures a secure and theft-proof seating of the closure cap 1 on the container neck 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Packages (AREA)
  • Wrappers (AREA)
EP81810029A 1980-02-14 1981-02-03 Capuchon de fermeture pour un récipient Expired EP0034997B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81810029T ATE7589T1 (de) 1980-02-14 1981-02-03 Verschlusskappe fuer einen behaelter.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1203/80 1980-02-14
CH120380 1980-02-14

Publications (2)

Publication Number Publication Date
EP0034997A1 true EP0034997A1 (fr) 1981-09-02
EP0034997B1 EP0034997B1 (fr) 1984-05-23

Family

ID=4204914

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81810029A Expired EP0034997B1 (fr) 1980-02-14 1981-02-03 Capuchon de fermeture pour un récipient

Country Status (14)

Country Link
US (1) US4345692A (fr)
EP (1) EP0034997B1 (fr)
JP (1) JPS56131160A (fr)
AR (1) AR222119A1 (fr)
AT (1) ATE7589T1 (fr)
AU (1) AU536146B2 (fr)
BR (1) BR8100891A (fr)
CA (1) CA1154400A (fr)
DE (1) DE3163698D1 (fr)
ES (1) ES267102Y (fr)
GR (1) GR72763B (fr)
IE (1) IE810281L (fr)
NZ (1) NZ196262A (fr)
ZA (1) ZA81959B (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2518061A1 (fr) * 1981-12-11 1983-06-17 Wiedmer Walter Bouchon filete avec bande de garantie pour recipient
EP0086970A2 (fr) * 1982-02-20 1983-08-31 Alcoa Deutschland GmbH Construction et procédé de montage d'un capuchon ainsi que capuchon pour un col de récipient muni d'un pas de vis ou d'un bourrelet
EP0113642A1 (fr) * 1983-01-07 1984-07-18 Crown Obrist AG Capuchon de fermeture pour un récipient et procédé de fabrication de celui-ci
EP0121050A1 (fr) * 1983-02-24 1984-10-10 Stanley A. Jacobs Capuchon de sécurité pour récipient en matière plastique avec bande étanche et déchirable
US4480761A (en) * 1982-07-14 1984-11-06 Albert Obrist Ag Tamper indicating closure for a container
GB2143512A (en) * 1983-07-19 1985-02-13 Nat Plastics Ltd Container closure
FR2550514A1 (fr) * 1983-08-12 1985-02-15 Lammerant Henri Capsule inviolable
EP0155021A1 (fr) * 1984-02-09 1985-09-18 Kornelis' Kunsthars Producten Industrie B.V. Capsule de bouchage en polypropylène pourvue d'un joint et d'une bande de garantie
US5813553A (en) * 1995-06-07 1998-09-29 Kerr Group, Inc. Snap-band tamper evident

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4545496A (en) * 1981-07-24 1985-10-08 H-C Industries, Inc. Plastic closure with mechanical pilfer band
DE3345775A1 (de) * 1983-12-17 1985-06-20 Owens-Illinois, Inc., Toledo, Ohio Diebstahlsichere packung
US4872304A (en) * 1985-12-12 1989-10-10 Tri-Tech Systems International Inc. Closure cap with a seal and method of and apparatus for forming such closure and seal
US4708255A (en) * 1985-12-12 1987-11-24 Tri-Tech Systems International Inc. Closure cap with a linerless seal and a method for forming such closure and seal
US4709824A (en) * 1985-12-12 1987-12-01 Tri-Tech Systems International Inc. Tamper evident plastic caps with lower separable or breakaway portions and a method of forming them
US4925617A (en) * 1987-06-10 1990-05-15 Tri-Tech Systems International, Inc. Method of forming a closure cap with a seal
US4823967A (en) * 1987-06-10 1989-04-25 Tri-Tech Systems International Inc. Closure for container and method for forming the closure
US4886947A (en) * 1987-06-17 1989-12-12 Tri-Tech Systems International, Inc. Closure system and method of forming and using same
US4856667A (en) * 1987-06-17 1989-08-15 Tri-Tech Systems International Inc. Container and cap
US4811857A (en) * 1987-06-17 1989-03-14 Tri-Tech Systems International Inc. Closure system and method of forming and using same
US5100009A (en) * 1989-05-03 1992-03-31 Tri-Tech Systems International Inc. Closure and access systems for containers and methods of manufacture and use
US4890754A (en) * 1989-05-26 1990-01-02 Zapata, Industries, Inc. Pilfer-resistant plastic closure
US4993571A (en) * 1989-09-14 1991-02-19 American Safety Closure Corp. Tamper-evident cap
JP3313364B2 (ja) * 1989-12-28 2002-08-12 トライ―テック システムズ インターナショナル インコーポレイテッド 開封指示キャップおよび該キャップの製作方法
EG21314A (en) 1992-07-16 2000-10-31 Driutt Rodney Malcolm Tamper evident closure
US5542095A (en) * 1993-08-24 1996-07-30 Pacific Communication Sciences Frequency Reference Compensation
US6062408A (en) * 1997-04-09 2000-05-16 Dtl Technology Limited Partnership Wide mouth hot fill container
US6237791B1 (en) 1997-04-09 2001-05-29 Dtl Technology Limited Partnership Wide mouth hot fill container
US6257435B1 (en) 2000-01-12 2001-07-10 King Plastics, Inc. Tamper evident closure member
US6631820B2 (en) 2000-12-22 2003-10-14 Seaquist Closures Foreign, Inc. Tamper-evident dispensing closure with partial breakaway cover
US6405885B1 (en) 2000-12-22 2002-06-18 Seaquist Closures Foreign, Inc. Locking tamper-evident dispensing closure
JP6128831B2 (ja) * 2012-12-21 2017-05-17 日本クロージャー株式会社 合成樹脂製容器蓋

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1384370A (en) * 1971-01-11 1975-02-19 United Glass Ltd Closures for containers
DE2529289A1 (de) * 1974-08-19 1976-03-04 Obrist Ag Albert Garantieverschluss fuer behaelter und verfahren zur herstellung desselben

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3329295A (en) * 1965-11-29 1967-07-04 Zbislaw M Roehr Tamper-indicating closure
CH505005A (de) * 1968-03-30 1971-03-31 Ciba Geigy Ag Verfahren zur Herstellung eines Garantieverschlusses und nach diesem Verfahren hergestellter Garantieverschluss
FR2348116A1 (fr) * 1976-04-16 1977-11-10 Prot Srl Dispositif de fermeture a sceau de garantie pour bouteilles ou analogues
AU516094B2 (en) * 1977-12-14 1981-05-14 Metal Closures Group Limited Closures for containers
US4206852A (en) * 1979-01-26 1980-06-10 Aluminum Company Of America Linerless closure for pressurized container

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1384370A (en) * 1971-01-11 1975-02-19 United Glass Ltd Closures for containers
DE2529289A1 (de) * 1974-08-19 1976-03-04 Obrist Ag Albert Garantieverschluss fuer behaelter und verfahren zur herstellung desselben
FR2282378A1 (fr) * 1974-08-19 1976-03-19 Obrist Ag Albert Fermeture de garantie pour des recipients et procede permettant sa production
FR2395909A1 (fr) * 1974-08-19 1979-01-26 Obrist Ag Albert Fermeture de garantie pour des recipients et procede permettant sa production

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2518061A1 (fr) * 1981-12-11 1983-06-17 Wiedmer Walter Bouchon filete avec bande de garantie pour recipient
EP0086970A2 (fr) * 1982-02-20 1983-08-31 Alcoa Deutschland GmbH Construction et procédé de montage d'un capuchon ainsi que capuchon pour un col de récipient muni d'un pas de vis ou d'un bourrelet
EP0086970A3 (en) * 1982-02-20 1985-04-10 Alcoa Deutschland Gmbh Construction and mounting process for a cap and cap for a container neck provided with a screw-thread or a bead
US4480761A (en) * 1982-07-14 1984-11-06 Albert Obrist Ag Tamper indicating closure for a container
EP0113642A1 (fr) * 1983-01-07 1984-07-18 Crown Obrist AG Capuchon de fermeture pour un récipient et procédé de fabrication de celui-ci
WO1984002694A1 (fr) * 1983-01-07 1984-07-19 Obrist Ag Albert Couvercle de recipient et installation pour sa fabrication
US4564112A (en) * 1983-01-07 1986-01-14 Crown Obrist Ag Closure cap for a container
EP0121050A1 (fr) * 1983-02-24 1984-10-10 Stanley A. Jacobs Capuchon de sécurité pour récipient en matière plastique avec bande étanche et déchirable
GB2143512A (en) * 1983-07-19 1985-02-13 Nat Plastics Ltd Container closure
FR2550514A1 (fr) * 1983-08-12 1985-02-15 Lammerant Henri Capsule inviolable
EP0155021A1 (fr) * 1984-02-09 1985-09-18 Kornelis' Kunsthars Producten Industrie B.V. Capsule de bouchage en polypropylène pourvue d'un joint et d'une bande de garantie
US5813553A (en) * 1995-06-07 1998-09-29 Kerr Group, Inc. Snap-band tamper evident

Also Published As

Publication number Publication date
GR72763B (fr) 1983-12-02
EP0034997B1 (fr) 1984-05-23
DE3163698D1 (en) 1984-06-28
US4345692A (en) 1982-08-24
CA1154400A (fr) 1983-09-27
ES267102Y (es) 1986-08-01
JPS56131160A (en) 1981-10-14
ZA81959B (en) 1982-04-28
BR8100891A (pt) 1981-08-25
ATE7589T1 (de) 1984-06-15
IE810281L (en) 1981-08-14
NZ196262A (en) 1983-04-12
AR222119A1 (es) 1981-04-15
ES267102U (es) 1983-03-16
AU6717081A (en) 1981-08-20
AU536146B2 (en) 1984-04-19

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