EP0281514B2 - Capsule de fermeture à bande de garantie - Google Patents

Capsule de fermeture à bande de garantie Download PDF

Info

Publication number
EP0281514B2
EP0281514B2 EP88810061A EP88810061A EP0281514B2 EP 0281514 B2 EP0281514 B2 EP 0281514B2 EP 88810061 A EP88810061 A EP 88810061A EP 88810061 A EP88810061 A EP 88810061A EP 0281514 B2 EP0281514 B2 EP 0281514B2
Authority
EP
European Patent Office
Prior art keywords
tongues
cap
closure 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
EP88810061A
Other languages
German (de)
English (en)
Other versions
EP0281514B1 (fr
EP0281514A1 (fr
Inventor
Hans-Werner Breuer
Franz Thomas Bartl
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.)
obrist Closures Switzerland
obrist Closures Switzerlandroemerstrasse 83 Ch 41
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=4194035&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0281514(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Crown Cork AG filed Critical Crown Cork AG
Priority to AT88810061T priority Critical patent/ATE61987T1/de
Publication of EP0281514A1 publication Critical patent/EP0281514A1/fr
Publication of EP0281514B1 publication Critical patent/EP0281514B1/fr
Application granted granted Critical
Publication of EP0281514B2 publication Critical patent/EP0281514B2/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
    • B65D41/3428—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 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
    • 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

Definitions

  • the invention relates to a closure cap for closing a container mouth according to the preamble of claim 1.
  • closure caps have a guarantee function in that a first removal of the closure cap is indicated by tearing off the guarantee band.
  • the type mentioned are so-called mechanical guarantee bands, which automatically snap under the bulge at the bottle mouth when screwed on for the first time.
  • a problem with the guarantee bands provided with spring-back tongues is that the axial force component when opening them can become so large that the tongues spring back when unscrewed and slide over the bead again, so that the guarantee band does not tear off.
  • the caps are usually made of thermoplastic material by injection molding, whereby the material properties can change significantly depending on the ambient temperature.
  • the tongues can have a much greater flexibility in summer temperatures, which impairs their locking function.
  • a too massive formation of the tongues is not possible, since this would cause the guarantee band to stretch too much when the container mouth is closed for the first time.
  • US Pat. No. 4,550,843 and US Pat. No. 4,635,808 disclose comparable sealing caps in which the tongues can be supported on an underlying circumferential bead when the cap is opened, thus increasing the tear resistance.
  • the circumferential support bead below the tongues leads to a massive reinforcement of the guarantee band and thus to poor extensibility in the circumferential direction. This makes it difficult to put the screw cap on the bottle mouth for the first time.
  • the known screw caps are also rather disadvantageous with regard to the production technology, since the combination of tongues / support bead can only be removed from the mold with complex, radially opening slide tools.
  • This object is achieved according to the invention with a closure cap which has the features of patent claim 1.
  • the support cams under the tongues practically do not hinder the installation process, since the guarantee band can be stretched to a limited extent when it is first put on.
  • the tongues can be freely bent back upwards until they spring back under the bulge and thus reach under the bulge.
  • the cams support the tongues on their lower flanks, so that bending back down is only possible to a limited extent.
  • the forces acting in the axial direction increase in such a way that the guarantee band tears off before the guarantee band could slide over the bulge at the container mouth due to overstretching.
  • the latching action of the tongues can be increased further by a latching edge being arranged on the inside of the guarantee band approximately in the plane of the tongues.
  • this locking edge which is designed as a taper of the inside diameter, the tear-off forces can be adapted exactly to the respective conditions.
  • the guarantee band slides particularly easily over the bead on the container mouth when the support cams taper towards the lower edge of the guarantee band.
  • the support cams are arranged at a distance from the tongues, the flexibility of the tongues which is desired per se is in no way impaired when it is first put on.
  • the tongues are particularly advantageously designed such that they protrude inward in the radial direction beyond the support cams. In this way, the locking function of the tongues is increased, since in extreme cases the tongues wrap around the outer edges of the support cams and thus bring about a substantial reduction in diameter.
  • the tongues are advantageously arranged between the predetermined breaking bars.
  • the predetermined breaking bars are not subjected to excessive force when the cap is put on for the first time, since the guarantee band can expand radially better.
  • the guarantee band could also be connected to the lower edge of the cap via a thin material film.
  • a vertical predetermined breaking point is advantageously arranged on the guarantee band, so that the guarantee band does not remain under the bead on the bottle mouth after tearing off.
  • the tear-off process can be controlled particularly optimally if a tongue is arranged closer to the vertical predetermined breaking point in the unscrewing direction than in the unscrewing direction.
  • a closure cap 1 consists of a cap base 11 and a cylindrical cap side wall 12, which is provided with an internal thread 13.
  • Various mouth seals 14 can be arranged on the cap base or in the transition region between the cap base and the side wall of the cap.
  • a guarantee band 3 is arranged, which is connected to the cap via predetermined breaking webs 9.
  • the closure cap does not necessarily have to be a screw cap. A so-called snap lock could also be provided with a guarantee tape according to the invention.
  • tongues 6 projecting inwards are arranged on the inner wall 5 of the guarantee band at certain intervals.
  • the tongues taper slightly in cross-section towards their outer end and are inclined slightly downwards, which means that the demolding from an axially opening Tool is facilitated.
  • a support cam 7 is arranged at a certain distance, which tapers downwards.
  • Each support cam extends approximately the entire length of a tongue, but has an approximately crescent-shaped configuration when viewed from above.
  • a locking edge 8 runs over the entire circumference, which is designed as a tapering of the diameter of the inner wall 5. The locking edge improves the retention effect of the tongues 6.
  • the tongues do not have to be distributed over the circumference at regular intervals.
  • a vertical predetermined breaking point 10 is additionally provided on the guarantee band, it may be expedient to arrange the tongues at different distances.
  • a tongue 6a is provided in FIG. 2, which is closer to the vertical predetermined breaking point 10 in the unscrewing direction A than the tongue 6b in the unscrewing direction B.
  • no support cam 7 is provided on the tongue 6b, so that this tongue can bend back more than the other tongues .
  • the tongues with support cams are distributed over a section of 180 °, the tongue 6c being arranged approximately diametrically opposite the vertical predetermined breaking point 10.
  • an axially extending rim 15 can be provided on the outside, as it usually also has the cap side wall 12.
  • FIG. 3 shows the position of a tongue 6 when the closure cap is screwed on for the first time, the guarantee band 3 being pushed downward in the direction of the arrow C against the bead 4 at the container mouth 2.
  • container mouths are standardized in particular for bottles for soft drinks, so that they are always the same Dimensions and tolerances can be found.
  • the inside diameter of the guarantee band and the length of the tongues are dimensioned in such a way that the guarantee band can be pushed over the bead 4 with a slight stretch in the circumference without destroying the predetermined breaking webs 9.
  • FIG. 6 shows the position of the tongues when a force component acts on the guarantee band in the direction of arrow D when the closure cap is removed for the first time.
  • the tongues have the tendency to bend back downward, but are supported by the support cams 7. Overcoming the bead 4 would obviously only be possible by excessive stretching of the guarantee band, since the tongues are blocked towards the bottom.
  • the predetermined breaking webs 9 tear, as shown in FIG. 6.
  • the guarantee band is preferably connected to the lower edge of the cap via a single, reinforced growth web, so that it can be completely removed from the mouth of the container after the vertical predetermined breaking point has torn.

Landscapes

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

Claims (6)

  1. Capsule de fermeture (1) destinée à fermer un goulot de récipient (2), comportant une bande de garantie apte à être arrachée (3) disposée sur le bord inférieur de la capsule (1), qui est destinée à venir en prise par le dessous avec un renflement annulaire (4) prévu sur le goulot de récipient (2) lorsque la capsule (1) est posée, et qui présente à cet effet plusieurs languettes flexibles (6) disposées sur la paroi interne (5) et orientées vers l'axe médian, qui, lors de la pose initiale de la capsule (1), sont aptes à se recourber et viennent s'encliqueter, dans la position définitive de la capsule (1), sous le renflement (4), caractérisée en ce qu'il est prévu sur une partie au moins du côté opposé au fond de capsule (11), sous les languettes (6) et à une certaine distance de celles-ci, des ergots d'appui individuels (7) sur lesquels les languettes (6) peuvent s'appuyer dans la direction du goulot lorsqu'une force est exercée axialement sur la bande de garantie (3), étant précisé que chaque ergot d'appui s'étend sénsiblement sur toute la longueur d'une languette, va en s'effilant en direction du bord inférieur de la bande de garantie (3) et présente, vu de dessus axialement et radialement, une configuration sensiblement en forme de croissant.
  2. Capsule de fermeture selon la revendication 1, caractérisée en ce qu'il est prévu une arête d'encliquetage (8) sur la face interne de la bande de garantie (3), approximativement au niveau des languettes (6).
  3. Capsule de fermeture selon la revendication 1 ou 2, caractérisée en ce que les languettes (6) font saillie suivant une direction radiale vers l'intérieur, au-dessus des ergots d'appui (7).
  4. Capsule de fermeture selon l'une des revendications 1 à 3, caractérisée en ce que les languettes vont en s'effilant, en coupe transversale, vers leur extrémité extérieure.
  5. Capsule de fermeture selon l'une des revendications 1 à 4, caractérisée en ce que la bande de garantie (3) est reliée à la capsule (1) par l'intermédiaire de pattes de rupture (9) et en ce que les languettes (6) sont disposées entre les pattes de rupture (9).
  6. Capsule de fermeture selon l'une des revendications 1 à 5, caractérisée en ce qu'elle est formée par une capsule filetée et en ce que la bande de garantie (3) est pourvue d'un point de rupture vertical (10), une languette (6a) étant disposée plus près du point de rupture vertical (10) dans le sens du dévissage (A) que dans le sens du vissage (B).
EP88810061A 1987-02-26 1988-02-03 Capsule de fermeture à bande de garantie Expired - Lifetime EP0281514B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88810061T ATE61987T1 (de) 1987-02-26 1988-02-03 Verschlusskappe mit garantieband.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH737/87 1987-02-26
CH737/87A CH671205A5 (fr) 1987-02-26 1987-02-26

Publications (3)

Publication Number Publication Date
EP0281514A1 EP0281514A1 (fr) 1988-09-07
EP0281514B1 EP0281514B1 (fr) 1991-03-27
EP0281514B2 true EP0281514B2 (fr) 1994-01-05

Family

ID=4194035

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88810061A Expired - Lifetime EP0281514B2 (fr) 1987-02-26 1988-02-03 Capsule de fermeture à bande de garantie

Country Status (11)

Country Link
US (1) US4784280A (fr)
EP (1) EP0281514B2 (fr)
JP (1) JPS63218051A (fr)
AT (1) ATE61987T1 (fr)
AU (1) AU598641B2 (fr)
CA (1) CA1294579C (fr)
CH (1) CH671205A5 (fr)
DE (1) DE3862128D1 (fr)
ES (1) ES2021877T5 (fr)
GR (1) GR3001673T3 (fr)
ZA (1) ZA881319B (fr)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE58904871D1 (de) * 1988-11-28 1993-08-12 Crown Cork Ag Schraubkappe mit garantieband.
DE69004820T2 (de) * 1989-01-30 1994-06-16 Hc Ind Garantieverschluss aus Kunststoff.
US4938370B1 (en) * 1989-04-26 2000-10-17 Hc Ind Tamper-indicating plastic closure
US5009323A (en) * 1989-11-13 1991-04-23 Sunbeam Plastics Corporation Tamper indicating closure having a rotary seal
DE59100444D1 (de) * 1990-04-04 1993-11-11 Crown Cork Ag Verschlusskappe aus Kunststoff.
US5004112A (en) * 1990-04-10 1991-04-02 H-C Industries, Inc. Tamper-indicating plastic closure
JPH0491848U (fr) * 1990-12-25 1992-08-11
US5205426A (en) * 1991-04-09 1993-04-27 H-C Industries, Inc. Tamper-indicating plastic closure
GB9205375D0 (en) * 1992-03-12 1992-04-22 Metal Closures Group Ltd Container closures
US5251770A (en) * 1992-05-06 1993-10-12 Broadway Companies, Inc. Container and pressure sealing closure combination
EG21314A (en) * 1992-07-16 2000-10-31 Driutt Rodney Malcolm Tamper evident closure
US5242068A (en) * 1992-08-07 1993-09-07 H-C Industries, Inc. Tamper-indicating plastic closure
US5320234A (en) * 1992-10-07 1994-06-14 H-C Industries, Inc. Tamper-indicating plastic closure with pilfer band having staggered scores
US5356019A (en) * 1992-10-14 1994-10-18 Crown Cork & Seal Company, Inc. Tamper indicating plastic closure
US5282540A (en) * 1992-11-23 1994-02-01 Creative Packaging Corp. Tamper band with flexible engagement member
FR2712258B1 (fr) * 1993-11-12 1995-12-22 Cebal Tube ayant une tête en matière plastique comprenant en opercule déchirable.
US5450973A (en) * 1994-09-22 1995-09-19 Eagle Engraving And Mold Corp. Tamper-evident closure apparatus
US5501349A (en) * 1994-10-27 1996-03-26 H-C Industries, Inc. Tamper-indicating plastic closure with selectively strengthened pilfer band
GEP20012365B (en) * 1995-06-14 2001-02-25 Bruno Zumbuhl Threaded Closure for Hermetic Sealing of Containers with Threaded Neck
US5979682A (en) * 1997-04-14 1999-11-09 Zumbuhl; Bruno Tab construction for closures having tamper evident rings
AU2003265391A1 (en) * 2002-08-07 2004-02-25 Silgan Closures, Llc Reduced application energy closure
JP6418720B2 (ja) * 2012-12-21 2018-11-07 日本クロージャー株式会社 合成樹脂製容器蓋

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2499519A1 (fr) * 1981-02-11 1982-08-13 Grussen Jean Capsule de bouchage a vis avec anneau d'inviolabilite
US4635808A (en) * 1982-12-14 1987-01-13 Maxcap, Inc. Plastic cap
GR850153B (fr) * 1984-02-06 1985-03-29 Obrist Ag Crown
JPS62122956A (ja) * 1985-11-20 1987-06-04 昭和電工株式会社 オレフイン系樹脂製容器蓋

Also Published As

Publication number Publication date
ATE61987T1 (de) 1991-04-15
EP0281514B1 (fr) 1991-03-27
DE3862128D1 (de) 1991-05-02
CA1294579C (fr) 1992-01-21
JPS63218051A (ja) 1988-09-12
US4784280A (en) 1988-11-15
GR3001673T3 (en) 1992-11-23
ES2021877B3 (es) 1991-11-16
ES2021877T5 (es) 1995-08-16
EP0281514A1 (fr) 1988-09-07
ZA881319B (en) 1988-08-23
AU598641B2 (en) 1990-06-28
AU1217888A (en) 1988-09-01
CH671205A5 (fr) 1989-08-15

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