EP0034997B1 - Verschlusskappe für einen Behälter - Google Patents

Verschlusskappe für einen Behälter Download PDF

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Publication number
EP0034997B1
EP0034997B1 EP81810029A EP81810029A EP0034997B1 EP 0034997 B1 EP0034997 B1 EP 0034997B1 EP 81810029 A EP81810029 A EP 81810029A EP 81810029 A EP81810029 A EP 81810029A EP 0034997 B1 EP0034997 B1 EP 0034997B1
Authority
EP
European Patent Office
Prior art keywords
guarantee
closure cap
container
wall thickness
reinforcement
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.)
Expired
Application number
EP81810029A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0034997A1 (de
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(B1) "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/de
Application granted granted Critical
Publication of EP0034997B1 publication Critical patent/EP0034997B1/de
Expired 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
    • B65D41/34—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt
    • B65D41/3461—Threaded 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
    • B65D41/3466—Threaded 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
    • 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
    • B65D2401/00—Tamper-indicating means
    • B65D2401/15—Tearable part of the closure
    • B65D2401/30—Tamper-ring remaining connected to closure after initial removal
    • 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
    • B65D2401/00—Tamper-indicating means
    • B65D2401/15—Tearable part of the closure
    • B65D2401/35—Vertical 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 produced 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, and for this purpose is intended to at least partially surround the neck of the container and which, after the closure cap has been applied to the neck of the container, 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.
  • FR-A-2 395 909 by the applicant has already disclosed a closure cap of the type mentioned at the outset, in which the guarantee band can be deformed without mechanical aids.
  • the guarantee band has a constant, approximately wedge-shaped cross-section over its entire circumference.
  • the wedge tip of the guarantee band is designed as a predetermined breaking line. Irregularities in the guarantee band caused by the manufacturing process can possibly have an adverse effect on the shrinking process if no mechanical pressing tools are used.
  • the invention has for its object to avoid the disadvantages of the known, in particular to create a cap of the type mentioned, the guarantee tape is already plasticized when low heat output is applied, without tearing and that can be produced with forms that fill the Allow shape from the cap and over the predetermined breaking connecting webs in the guarantee tape.
  • the wall thickness of the guarantee band has a reinforcement in the area between two predetermined breaking connecting webs and that the individual reinforcements are interrupted by sections of smaller wall thickness, the lowest wall thickness in each case being in the area of a predetermined breaking connecting web.
  • this reinforcement i. H. So material thickening, various surprising effects are achieved.
  • it is ensured that during the injection molding process, when the liquefied thermoplastic is injected from the connecting webs into the guarantee band section, the two material flows which are moving towards each other come into contact with one another over a larger area and the guarantee band is thereby solidified in this area.
  • 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.
  • Sealing caps with a guarantee band have already become known, in which cross-sectional changes are provided on the guarantee band.
  • DE-A-2 338 069 shows a sealing cap with a guarantee band which has teeth on the inside. This toothing engages in an external toothing on the container mouth, so that when the screw cap is unscrewed, the guarantee band remains at the container mouth and the predetermined breaking webs tear.
  • This guarantee band therefore does not have to be formed on the neck of the container by hot forming, since it is fixed on the container mouth by the teeth.
  • the toothing also improves the manufacturing process by injection molding, since the individual teeth are not arranged in a specific relationship to the individual predetermined breaking connecting webs. As a result, problems can arise during the injection molding process if the liquefied thermoplastic meets at unfavorable points in the guarantee strip section.
  • 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 hot-formed with large temperature tolerances, have shown that the best results can be achieved both functionally and optically if the reinforcement is around 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 by arrows in FIG. 3, is filled from the base of the cap.
  • the liquid thermoplastic material penetrates through the connecting webs 6 into the area of the guarantee band, the individual partial flows x and y, which arise 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.
  • FIGS. 4 to 6 In the plan view (FIG. 4) it is clearly recognizable as a tendon-like interruption of the inner wall of the tamper-evident band 4, which is circular in itself. This thickening can be achieved particularly simply because the inner wall of the tamper-evident band 4 in the remaining area runs slightly conically 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 this type of training has been justified for manufacturing reasons and in view proven particularly easy to demold the cap 1 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 strip 4 is softened particularly strongly in the sections between the connecting webs 6 and the material reinforcements 8, wherein a shrinking process of the entire guarantee strip 4 can be observed before shrinking occurs in the region of the reinforcement 8.
  • the shrinking i.e. H. So the reduction in diameter of the guarantee band is achieved by combined heat and pressure from 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 Verschlusskappe für einen Behälter Expired EP0034997B1 (de)

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 EP0034997A1 (de) 1981-09-02
EP0034997B1 true EP0034997B1 (de) 1984-05-23

Family

ID=4204914

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81810029A Expired EP0034997B1 (de) 1980-02-14 1981-02-03 Verschlusskappe für einen Behälter

Country Status (14)

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

Families Citing this family (32)

* 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
CH653307A5 (de) * 1981-12-11 1985-12-31 Walter Wiedmer Schraubverschluss mit garantiestreifen fuer behaelter.
JPS58502165A (ja) * 1981-12-23 1983-12-15 アンステイテユ・パストウ−ル 特異抗体により認識し得る修飾核酸プローブを使用して核酸配列の存在を検出する方法
EP0086970B1 (de) * 1982-02-20 1987-05-06 Alcoa Deutschland GmbH Bausatz und Montageverfahren für eine Verschlusskappe sowie Verschlusskappe für einen Behälterhals mit Gewinde oder Hinterschneidungen
EP0099332A3 (de) * 1982-07-14 1985-05-29 Albert Obrist AG Verschlusskappe für einen Behälter
US4474304A (en) * 1983-02-24 1984-10-02 Jacobs Stanley A Plastic container lid with tear-away tamper resistant sealing strip
GB8319444D0 (en) * 1983-07-19 1983-08-17 Nat Plastics Ltd Container closure
FR2550514B1 (fr) * 1983-08-12 1986-07-04 Lammerant Henri Capsule inviolable
DE3345775A1 (de) * 1983-12-17 1985-06-20 Owens-Illinois, Inc., Toledo, Ohio Diebstahlsichere packung
NL8400428A (nl) * 1984-02-09 1985-09-02 Kornelis Kunsthars Prod Ind Bv Werkwijze ter vervaardiging van een van een afdichtpakking voorziene sluitdop uit een polypropeenmateriaal voor een houder; van een afdichtpakking voorziene sluitdop uit een alkeenpolymeer, alsmede werkwijze voor het sluiten en verzegelen van een houder met een sluitdop vervaardigd uit polypropeenmateriaal.
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
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
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
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
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
US4886947A (en) * 1987-06-17 1989-12-12 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
EP0510078B1 (en) * 1989-12-28 1997-04-23 Innovative Closures, Inc. Tamper evident caps and methods for producing such caps
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
US5813553A (en) * 1995-06-07 1998-09-29 Kerr Group, Inc. Snap-band tamper evident
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
US6405885B1 (en) 2000-12-22 2002-06-18 Seaquist Closures Foreign, Inc. Locking tamper-evident dispensing closure
US6631820B2 (en) * 2000-12-22 2003-10-14 Seaquist Closures Foreign, Inc. Tamper-evident dispensing closure with partial breakaway cover
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
WO2024207097A1 (en) 2023-04-05 2024-10-10 Husky Injection Molding Systems Ltd. Closures with tamper evidence

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
FR2282378A1 (fr) * 1974-08-19 1976-03-19 Obrist Ag Albert Fermeture de garantie pour des recipients et procede permettant sa production

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 (3)

* 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
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

Also Published As

Publication number Publication date
ES267102U (es) 1983-03-16
AR222119A1 (es) 1981-04-15
ATE7589T1 (de) 1984-06-15
DE3163698D1 (en) 1984-06-28
JPS56131160A (en) 1981-10-14
GR72763B (enrdf_load_stackoverflow) 1983-12-02
ES267102Y (es) 1986-08-01
AU536146B2 (en) 1984-04-19
ZA81959B (en) 1982-04-28
US4345692A (en) 1982-08-24
EP0034997A1 (de) 1981-09-02
BR8100891A (pt) 1981-08-25
AU6717081A (en) 1981-08-20
CA1154400A (en) 1983-09-27
IE810281L (en) 1981-08-14
NZ196262A (en) 1983-04-12

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