EP0371920B1 - Fermeture à vis avec bande de garantie - Google Patents

Fermeture à vis avec bande de garantie Download PDF

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Publication number
EP0371920B1
EP0371920B1 EP89810883A EP89810883A EP0371920B1 EP 0371920 B1 EP0371920 B1 EP 0371920B1 EP 89810883 A EP89810883 A EP 89810883A EP 89810883 A EP89810883 A EP 89810883A EP 0371920 B1 EP0371920 B1 EP 0371920B1
Authority
EP
European Patent Office
Prior art keywords
cap
tear
screw cap
guarantee strip
guarantee
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 - Lifetime
Application number
EP89810883A
Other languages
German (de)
English (en)
Other versions
EP0371920A3 (en
EP0371920A2 (fr
Inventor
Werner R. F. Stibal
Franz Thomas Bartl
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.)
Crown Cork AG
Original Assignee
Crown Cork 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
Application filed by Crown Cork AG filed Critical Crown Cork AG
Priority to AT89810883T priority Critical patent/ATE91264T1/de
Publication of EP0371920A2 publication Critical patent/EP0371920A2/fr
Publication of EP0371920A3 publication Critical patent/EP0371920A3/de
Application granted granted Critical
Publication of EP0371920B1 publication Critical patent/EP0371920B1/fr
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
    • B65D41/34—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt
    • B65D41/3423—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with flexible tabs, or elements rotated from a non-engaging to an engaging position, formed on the tamper element or in the closure skirt
    • 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
    • B65D41/3442—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with rigid bead or projections formed on the tamper element and coacting with bead or projections on the container
    • B65D41/3447—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with rigid bead or projections formed on the tamper element and coacting with bead or projections on the container the tamper element 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 screw cap made of plastic material for closing a container mouth according to the preamble of claim 1.
  • Such screw caps have a guarantee function in that a first removal of the cap is indicated by tearing off the guarantee band.
  • Screw caps with mechanically locking guarantee bands have been known and used for a long time.
  • the guarantee band is divided into two separate, semicircular parts, both of which have grown via reinforced webs at the lower edge of the cap.
  • this two-part design carries the risk that the two parts receive too great a circumferential elasticity, so that the cap can be unscrewed without tearing off the band.
  • the guarantee band is divided into two arcuate sections which are separated from one another by a vertical slot and by a vertical predetermined breaking point. There is also a tearing of the vertical predetermined breaking point is not guaranteed in every case, so that the user may have to manipulate by hand to bring the tape to a complete detachment.
  • the tear-off resistance between the cap and the band is increased to a fraction of the circumference and the band is weakened by an oblique predetermined tear line in the form of a notch.
  • An annular rib serves as a retaining element, which extends over the entire section that is not connected or can only be torn off.
  • the nominal tear line extends practically over the entire area of the section with increased tear resistance.
  • the guarantee tape can be integrally and firmly connected to the lower cap edge over a relatively large peripheral section, this section only having a support and retention function and the symmetrical placement of the cap allows on the bottle, but does not actually perform a guarantee function.
  • the guarantee function is exercised by the complementary section, which is only tearably connected to the lower edge of the cap. This section can be made relatively short, so that when the container mouth is subsequently closed again, there is no danger that the torn guarantee band will be pushed between the threads.
  • the guarantee band is continuously formed over its entire circumference, whereby the necessary circumferential tension is achieved when opening for the first time. This ensures that the predetermined breaking point tears on the guarantee tape.
  • the firmly connected section of the guarantee tape extends over an angle of 120 to 270 °.
  • the complementary section of the guarantee band which is not firmly connected to the cap, is connected to the lower edge of the cap via tear-off webs. However, two webs can be sufficient to hold the complementary section in place.
  • the retaining elements are mostly arranged on the separately formed complementary section of the guarantee band, but also extend at least partially over the firmly connected section.
  • the retaining elements can be designed as deformable tongues, e.g. according to the applicant's EP-A-281 514.
  • the retaining elements can also be designed as individual beads, as shown in US-A-4305516 or in US-A-4,744,479.
  • At least one inwardly directed support lug is arranged on the lower cap edge in the region of the detachable complementary section.
  • This support lug prevents the complementary section of the guarantee band, which is connected to the edge of the cap only by a few webs, from being pushed into the cap opening when it is first put on.
  • the upper edge of the guarantee band is rather supported on the nose, so that the tear Tear bars when putting on the cap is prevented.
  • Figure 1 shows a screw cap 1 made of plastic material with an internal thread 5, which is intended to close a container mouth 2 with an external thread 6.
  • Such screw caps are preferred for closing Bottles with soft drinks are used, which are usually reusable glass bottles with a standardized bottle mouth.
  • the guarantee band 3 consists of a circumferential section 9 firmly connected to the lower edge of the cap and of a complementary section 10 which can be torn off or not firmly connected.
  • the retaining elements which will be explained later, on the inside of the guarantee band snap under the bead 4 at the mouth of the container when the cap is first screwed on 2 and when unscrewing the cap for the first time, cause the necessary tensile force to tear the guarantee tape.
  • the cross section of the screw cap can be seen from FIGS. 2 to 4.
  • the screw cap 1 itself can have an orifice seal 16 or another sealing system such as e.g. have an inserted sealing washer.
  • the cross-sectional shape of the screw cap and the guarantee strip is selected such that it can be manufactured in an axially opening injection molding tool.
  • FIG. 5 shows the length of the peripheral section 9 firmly connected to the lower edge 15. In the exemplary embodiment, this extends over an angle alpha of approximately 240 °.
  • This section as can be seen from FIG. 2 on the right side, is connected to the lower edge 15 practically in its entire wall thickness and therefore cannot be torn off.
  • the complementary section 10 which is not firmly connected to the lower edge of the cap, accordingly extends over an angle Beta of approximately 120 °.
  • the cross-sectional shape of the guarantee band in this section can be seen from FIG. 2, left side.
  • the guarantee band is approximately wedge-shaped at the top and connected to the lower edge of the cap at only two tear-off webs 12 and 12 '.
  • Inwardly directed tongues 7 serve as retaining elements, under each of which a support bead 8 is arranged.
  • the tongues 7 are bent upwards and thus slide over the bead 4 at the bottle mouth. Bending of the tongues 7 downward is prevented by the support beads 8, so that the retaining elements once engaged under the bead 4 can no longer be pushed over the bead without tearing the guarantee band 3.
  • a predetermined breaking point 11 is arranged on the guarantee band.
  • this consists of a horizontal web 17 which connects the fixed section 9 and the loose complementary section 10 to one another.
  • a material recess 13 in the form of a slot is provided directly next to the section 9. This slot extends only about half of the guarantee bandwidth, so that there is no complete interruption of the guarantee band. Instead of the slot, only one notch could be arranged, with which the wall thickness of the guarantee tape is greatly reduced. The material recess 13 relieves the predetermined breaking point 11 without significantly reducing the disproportionately large expansion forces when unscrewing for the first time.
  • FIG. 3 also shows the support lug 14, which is arranged on the inside of the cap in the region of the loose complementary section 10.
  • This support nose which is inclined slightly obliquely downward, prevents the loose complementary section 10 from being able to slide into the cap opening when the cap is screwed on for the first time.
  • the tear-off webs 12 and 12 ' are relieved.
  • FIG. 3 shows the arrangement of the retaining elements 7, which extend over an angle delta of approximately 180 °.
  • Three of the retaining elements lie on the loose complementary section 10, while two of the retaining elements 7 'are already arranged on the fixed peripheral section 9.
  • the first of the retaining elements lies approximately diametrically opposite the predetermined breaking point 11.
  • the two tear-off webs 12 and 12 ' lie within an angle gamma of less than 90 °, starting from the predetermined breaking point 11.
  • the number of retaining elements 7, the tear-off webs 12 and the angles of the individual sections can obviously be adapted to the particular circumstances. In certain cases it would also be conceivable to provide more than one predetermined breaking point 11 on the guarantee band.
  • the cross-sectional shape of the guarantee band can also be adapted to the individual case.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Package Frames And Binding Bands (AREA)
  • Wrappers (AREA)
  • Cartons (AREA)

Claims (7)

  1. Bouchon fileté (1) en matière plastique pour la fermeture d'une entrée de récipient (2), comportant une bande de garantie circulaire (3) disposée au niveau du bord inférieur (15) du bouchon et formée d'une seule pièce avec celui-ci, cette bande étant destinée, lorsque le bouchon est en place, à venir en prise par en dessous avec un bourrelet annulaire (4) situé au niveau de l'entrée (2) du récipient et présentant à cette fin sur sa face intérieure un moyen de retenue (7) apte à glisser sur le bourrelet lorsque le bouchon est vissé pour la première fois et s'encastrant sous le bourrelet (4) lorsque le bouchon est dans sa position finale, étant précisé que la bande de garantie (3) comporte un tronçon périphérique (9) relié au bouchon de manière à résister à la déchirure sur un angle d'au moins 120° et de moins de 270°, ainsi qu'un tronçon complémentaire (10) relié au bouchon de manière déchirable, et que la bande de garantie est divisée dans le sens circonférentiel par une zone destinée à la rupture, qui est déchirable lorsque le bouchon est dévissé pour la première fois, caractérisé en ce que la bande de garantie est reliée au bord inférieur (15) du bouchon, au niveau du tronçon résistant à la rupture, sur toute son épaisseur de paroi, et au niveau du tronçon complémentaire déchirable par l'intermédiaire de plusieurs nervures déchirables (12), la bande de garantie présentant au niveau du tronçon complémentaire déchirable, dans sa partie supérieure contiguë au bord inférieur du bouchon, une section sensiblement cunéiforme se rétrécissant en direction du bord du bouchon, en ce que le moyen de retenue comporte plusieurs éléments de retenue individuels dont la plupart sont situés au niveau du tronçon complémentaire déchirable, et en ce que la zone destinée à la rupture (11) s'étend verticalement et comporte une nervure déchirable (17), celle-ci étant située au niveau d'une extrémité du tronçon résistant à la déchirure, et les extrémités voisines des deux tronçons (9, 10) étant reliées ensemble dans le sens circonférentiel, d'un côté de manière à résister à la déchirure et de l'autre, par la zone destinée à la rupture.
  2. Bouchon fileté selon la revendication 1, caractérisé en ce que deux nervures de déchirement (12) sont disposés à l'intérieur d'un tronçon complémentaire (10) de moins de 90° se raccordant à la zone destinée à la rupture (11).
  3. Bouchon fileté selon la revendication 1, caractérisé en ce que les éléments de retenue sont des languettes déformables (7).
  4. Bouchon fileté selon la revendication 1, caractérisé en ce que les éléments de retenue sont des bourrelets individuels.
  5. Bouchon fileté selon la revendication 3 ou 4, caractérisé en ce que le tronçon relié fixement s'étend sur un angle de plus de 180°, et en ce que les éléments de retenue (7) sont disposés à l'intérieur d'un tronçon de 180° se raccordant à la zone destinée à la rupture (11) au niveau du tronçon complémentaire séparable (10) et au niveau du tronçon relié fixement (9) de la bande de garantie (3).
  6. Bouchon fileté selon la revendication 5, caractérisé en ce qu'il est prévu au total cinq éléments de retenue (7) dont trois au niveau du tronçon complémentaire séparable (10) et deux au niveau du tronçon fixé fermement (9).
  7. Bouchon fileté selon l'une quelconque des revendications 1 à 6, caractérisé en ce que dans la zone du tronçon complémentaire séparable (10), au moins un talon d'appui (14) dirigé vers l'intérieur est disposé au niveau du bord inférieur (15) du bouchon, de façon à éviter, lorsque le bouchon est mis en place pour la première fois, une insertion de la bande de garantie (3) dans l'ouverture du bouchon.
EP89810883A 1988-11-28 1989-11-20 Fermeture à vis avec bande de garantie Expired - Lifetime EP0371920B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89810883T ATE91264T1 (de) 1988-11-28 1989-11-20 Schraubkappe mit garantieband.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH441188 1988-11-28
CH4411/88 1988-11-28

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP91108998.5 Division-Into 1989-11-20
EP91108998A Division EP0460557B1 (fr) 1988-11-28 1989-11-20 Fermeture à vis avec bande de garantie

Publications (3)

Publication Number Publication Date
EP0371920A2 EP0371920A2 (fr) 1990-06-06
EP0371920A3 EP0371920A3 (en) 1990-11-22
EP0371920B1 true EP0371920B1 (fr) 1993-07-07

Family

ID=4275637

Family Applications (2)

Application Number Title Priority Date Filing Date
EP91108998A Expired - Lifetime EP0460557B1 (fr) 1988-11-28 1989-11-20 Fermeture à vis avec bande de garantie
EP89810883A Expired - Lifetime EP0371920B1 (fr) 1988-11-28 1989-11-20 Fermeture à vis avec bande de garantie

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP91108998A Expired - Lifetime EP0460557B1 (fr) 1988-11-28 1989-11-20 Fermeture à vis avec bande de garantie

Country Status (4)

Country Link
EP (2) EP0460557B1 (fr)
AT (2) ATE96110T1 (fr)
DE (2) DE58904871D1 (fr)
ES (2) ES2041441T3 (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4201997C1 (fr) * 1992-01-25 1992-12-10 Stella Kunststofftechnik Gmbh, 6228 Eltville, De
DE4217539C2 (de) * 1992-05-27 1995-01-05 Frank Schellenbach Verschlußkappe
DE4221004A1 (de) * 1992-06-26 1994-01-05 Mouldtec Pvg Ag Meilen Verschlußkappe für Getränkeflaschen
EG21314A (en) * 1992-07-16 2000-10-31 Driutt Rodney Malcolm Tamper evident closure
HU216148B (hu) * 1995-07-21 1999-04-28 Nord Est Developpement Műanyag zárókupak garanciagyűrűvel és tömítőelemekkel, zárókupakból és edényből álló egység, valamint eljárás a zárókupak előállítására
FR2744988B1 (fr) * 1996-02-21 1998-04-10 Nord Est Dev Bouchon en matiere plastique comportant une bague d'inviolabilite, ensemble bouchon/recipient, procede de fabrication d'un tel bouchon et procede de realisation d'un tel ensemble bouchon/recipient
AUPO788597A0 (en) 1997-07-14 1997-08-07 Closures And Packaging Services Limited Closure
DE19730324A1 (de) * 1997-07-15 1999-01-28 Mouldtec Kunststoff Gmbh Schraubkappe mit Garantieband
IT1300020B1 (it) * 1998-05-08 2000-04-04 Sacmi Capsula a vite in materiale plastico con anello di garanzia.
DE19827242A1 (de) 1998-06-18 1999-12-30 Mouldtec Kunststoff Gmbh Verschlußkappe, insbesondere Schraubkappe aus Kunststoff mit Garantieband
FR2813288B1 (fr) 2000-08-23 2003-02-21 Rical Sa Systeme d'inviolabilite pour un bouchon comportant des moyens de blocage de la deformation radiale de la bague d'inviolabilite lors du montage
US7077278B2 (en) 2001-06-18 2006-07-18 Bericap Holding Gmbh Screw cap comprising a tamper-evident band
JP5007893B1 (ja) * 2011-06-08 2012-08-22 村山 哲夫 ピルファープルーフキャップ
BR302014001174S1 (pt) 2013-09-18 2015-05-12 Bericap Configuração ornamental aplicada em tampa
FR3015442B1 (fr) 2013-12-24 2016-02-05 Bericap Dispositif de bouchage articule avec indicateur de premiere ouverture
USD833278S1 (en) 2014-09-03 2018-11-13 Bericap Closure for a container
CN212402082U (zh) * 2020-01-08 2021-01-26 四川省宜宾普什模具有限公司 防伪拉环翻盖

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0228618A2 (fr) * 1985-12-19 1987-07-15 Pharma-Gummi Wimmer West GmbH Fermeture de bouchage inviolable pour récipient

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2439414A1 (de) * 1974-08-16 1976-03-04 Hohenzollern Huettenverwalt Kunststoffverschluss fuer flaschen und behaelter
FR2457813A1 (fr) * 1979-05-31 1980-12-26 Grussen Jean Capsule a vis en matiere plastique pour bouteilles
US4278180A (en) * 1980-01-24 1981-07-14 Aluminum Company Of America Container closure with breakable annular ring
US4550843A (en) * 1982-12-14 1985-11-05 Maxcap, Inc. Bottle caps
GR850153B (fr) * 1984-02-06 1985-03-29 Obrist Ag Crown
DE3531508A1 (de) * 1985-09-04 1987-03-12 Saier E Kunststoffwerk Gmbh Schraubverschlusskappe, insbesondere aus kunststoff, fuer flaschen, becher od. dgl.
EP0254673B1 (fr) * 1986-07-11 1990-04-18 Interplastic AG Couvercle de récipient muni d'une bague de garantie
CH672109A5 (fr) * 1987-01-30 1989-10-31 Wiedmer Plastikform W
CH671205A5 (fr) * 1987-02-26 1989-08-15 Crown Cork Ag

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0228618A2 (fr) * 1985-12-19 1987-07-15 Pharma-Gummi Wimmer West GmbH Fermeture de bouchage inviolable pour récipient

Also Published As

Publication number Publication date
EP0460557A3 (fr) 1991-12-18
EP0371920A3 (en) 1990-11-22
ATE96110T1 (de) 1993-11-15
ATE91264T1 (de) 1993-07-15
EP0460557B1 (fr) 1993-10-20
EP0460557A2 (fr) 1991-12-11
DE58904871D1 (de) 1993-08-12
ES2041441T3 (es) 1993-11-16
ES2045988T3 (es) 1994-01-16
EP0371920A2 (fr) 1990-06-06
DE58905985D1 (de) 1993-11-25

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