EP0564999B1 - Capsule de bouteille à anneau garantissant la fermeture d'origine - Google Patents

Capsule de bouteille à anneau garantissant la fermeture d'origine Download PDF

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Publication number
EP0564999B1
EP0564999B1 EP93105518A EP93105518A EP0564999B1 EP 0564999 B1 EP0564999 B1 EP 0564999B1 EP 93105518 A EP93105518 A EP 93105518A EP 93105518 A EP93105518 A EP 93105518A EP 0564999 B1 EP0564999 B1 EP 0564999B1
Authority
EP
European Patent Office
Prior art keywords
cap
warranty ring
cap according
ring
protrusions
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
EP93105518A
Other languages
German (de)
English (en)
Other versions
EP0564999A1 (fr
Inventor
Marcel Dr. Wunderli
Wilhelm Dipl.-Ing. Wazel
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.)
Wanzl GmbH and Co Holding KG
Original Assignee
Mouldtec PVG 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 Mouldtec PVG AG filed Critical Mouldtec PVG AG
Publication of EP0564999A1 publication Critical patent/EP0564999A1/fr
Application granted granted Critical
Publication of EP0564999B1 publication Critical patent/EP0564999B1/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
    • B65D41/3442—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
    • B65D2401/35—Vertical or axial lines of weakness

Definitions

  • the invention relates to a cap that can be placed on a bottle neck with a locking ring according to the preamble of patent claim 1.
  • Beverage bottles are usually closed either by crown caps or by reusable screw caps. While the crown cap's originality is ensured by the fact that it is deformed when the bottle is opened and therefore cannot be reused, screw caps can be opened and then closed again without the consumer having to buy one such bottle can easily determine this. To ensure the originality of screw caps, they are provided with so-called tamper-evident rings. Circlips of this type are connected to the closure cap via a predetermined breaking point, so that the predetermined breaking point is damaged when the beverage bottle is opened and the opening of the bottle for the first time can thus be reliably recognized from the outside. To ensure this security function it is necessary that the retaining ring is held on the bottle neck until it breaks when the cap is removed.
  • locking rings of this type are usually designed in such a way that they engage behind a projecting, circumferential bead radially inwards in the region of the bottle collar.
  • the cap When the cap is pulled off, the cap is moved upward in accordance with the thread pitch of the screw cap, while the retaining ring is held on the bottle collar in the region of the bead. This leads to increasing tensile stresses, which ultimately lead to the securing ring being torn off the cap along a predetermined predetermined breaking line.
  • German patent DE 3206245 describes in this connection a guarantee ring made of plastic for metallic screw cap containers, the guarantee ring being received in a U-shaped, radially inwardly open bead at the lower end of the jacket of the screw cap. When the metal cap is unscrewed, the plastic ring is separated from the metal cap and remains on the beverage bottle.
  • a screw closure for containers which comprises a safety ring which has a plurality of locking projections which are directed inwards on its inside and engage positively under or behind the radial projection of a beverage bottle.
  • the safety ring is connected to the cap by means of a thin film-like web, so that when the cap is pulled off, the safety ring tears off along this web and remains on the bottle.
  • Screw caps for beverage containers with a safety ring have to meet further requirements today. For cost reasons, it has now become indispensable to manufacture the cap together with the safety ring in one piece. Mounting the safety ring on a cap made of metal, for example, is no longer economical. Screw caps formed in one piece, which comprise the cap on the safety ring, are usually produced in such a way that the cap and the safety ring are initially produced as separate parts, the safety ring being welded to the cap in a second operation. Only in this way has it been possible to produce a cap of this type with a safety ring designed to engage behind.
  • the safety ring which is preferably made of plastic, remains on the bottle neck, since the bottles are melted again during the recycling process, the plastic of the safety ring burning and thus polluting the atmosphere. From a recycling point of view, it is desirable today to make it easier to separate the different materials. For this reason, it is necessary to develop a screw closure with a safety ring in such a way that the safety ring is visibly damaged when the cap is removed and remains on the cap at the same time.
  • the object of the invention is to provide a cap with a safety ring for beverage bottles, which is simple and inexpensive to manufacture and eliminates the disadvantages shown.
  • the locking ring formed on the closure cap has protrusions arranged in sections, which protrude radially inwards in the direction of the bottle neck and engage behind the bead on the bottle neck.
  • the projections formed on the locking ring have at least two different designs in their cross-sectional geometry.
  • the cross-sectional geometry of a first projection is bead-like, with a rounded front end, and that of a second projection is edge-like, with a sharp, pointed edge, the projections tapering in a wedge shape in their lower region.
  • the rounded bead-like projections serve primarily to horizontally expand the locking ring when the cap is pulled off, in that it is pulled upwards onto the circumferential projection on the bottle neck.
  • the second projection which is formed on the retaining ring and has a sharp, angular cross-sectional geometry, serves, on the other hand, to hold the retaining ring in the vertical direction on the bottle neck. Said horizontal expansion through the first projections in connection with the vertical retention of the second projection causes the securing ring to be torn open quickly and reliably.
  • a tear-off point extending essentially parallel to the cap axis is provided in the securing system, the tear-off point being formed in accordance with an advantageous embodiment by two preferably V-shaped recesses in the securing ring.
  • a first V-shaped recess extends from the cap-side upper edge of the securing ring to the lower edge, while a second recess forms an incision in the axis of the first recess of the securing ring from the outer surface thereof.
  • recesses provided in the lower edge of the locking ring are advantageously provided. These recesses are advantageously located next to the bead-like projections and in alignment with the tear-off point below them.
  • the tear-off point is reinforced around the lower area by a web which bridges a film hinge or the tear-off point.
  • the securing ring can have a plurality of rectangular recesses and the thread of the cap can only be formed in sections.
  • the closure element shown schematically in Fig. 1 in side section is generally designated 1.
  • the closure element 1 consists of the closure cap 2 and the locking ring 3.
  • the molded thread 4 which is only partially formed here, can be seen.
  • the locking ring 3 is connected to the cap via narrow tear-off webs 5.
  • the differently shaped, radially inward projections at the lower end of the locking ring are clearly recognizable.
  • the bead-like projection 6 with a rounded front end 7 is shown on the left and the edge-like projection 8, which has a sharp, pointed edge 9, is shown on the right.
  • the configuration of a downwardly open recess 10 is shown at the lower edge of the locking ring 3.
  • the recess 10 is preferably (not shown here) immediately next to the bead-like projections 6 and below a tear-off point (see FIG. 4).
  • the locking ring 3 has window-like recesses, which are arranged here above the edge-like projection 8.
  • Fig. 2 shows a horizontal section through the closure cap at the level of the tear-off webs 5 of the locking ring 3.
  • the projections 6 and 8 projecting radially inwards towards the bottle neck can be seen here, which, as shown here, have curves in the Open the wall of the circlip.
  • the tear-off point 12 with the axially extending, V-shaped recess 13 can be seen.
  • the edge-like projection 8 is arranged in the vicinity of the tear-off point 12.
  • FIG. 3 shows a further horizontal section through the closure cap in the region of the closure cap itself.
  • the thread turns 4, which are formed in sections and are integrally formed on the cap jacket 2, can be seen clearly from this illustration.
  • the threads 4 open into the wall of the cap shell 2 via curves.
  • Fig. 4 shows an embodiment of the tear-off point 12. This is essentially formed by two V-shaped recesses, the V-shaped recess 13 already described in FIG. 2 extending inwards from the outer surface of the retaining ring, so that the axis the recess is oriented parallel to the axial direction of the closure cap.
  • a wider V-shaped recess 14 is arranged perpendicular to the V-shaped recess 13 and extends from the cap-side upper edge of the retaining ring to the lower edge, tapering to a point, the tip of the recess 14 coinciding with the axis of the recess 13.
  • the recess 10 provided at the lower edge of the securing ring 3 can be seen, which is arranged in alignment with the tear-off point.
  • the edge-like projection 8 is arranged together with a window-shaped recess 11.
  • the representation shows the more detailed details of the cross-sectional geometries of the bead-like projection 6.
  • the representation shows the rounded profile 7 of the projection, to which the wedge-shaped region 15 adjoins at the bottom.
  • the cross-sectional geometry of the edge-like projection 8 is characterized in particular by the projecting surface 16, which is at an angle ⁇ , which is preferably less than 90 °, with respect to the wall the locking ring is arranged.
  • the wedge-shaped tapering region 15 of the projection 8 extends below the sharp edge 9.

Landscapes

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

Claims (15)

  1. Capsule en matière plastique adaptable, en particulier par vissage, sur le goulot d'une bouteille, comprenant un anneau garantissant la fermeture d'origine qui est relié à la surface périphérique de la capsule par un point de rupture théorique et qui, lorsque la capsule est en place, s'engage derrière un bourrelet ou un élément analogue prévu sur le goulot de la bouteille, l'anneau de garantie (3) s'engageant derrière le bourrelet du goulot de la bouteille au moyen de saillies (6, 8) disposées de manière fractionnée et à distance les unes des autres sur la périphérie de l'anneau de garantie, caractérisée en ce que les saillies (6, 8) dépassent radialement vers l'intérieur en direction du goulot de la bouteille et possèdent, en coupe transversale, au moins deux géométries différentes, des saillies avec une première géométrie en coupe (4, 7) servant d'abord à élargir horizontalement l'anneau de garantie lors du retrait de la capsule, et des saillies avec une seconde géométrie en coupe (8, 9) retenant l'anneau de sécurité dans le sens vertical sur le goulot de la bouteille.
  2. Capsule selon la revendication 1, caractérisée en ce qu'une première saillie (6) présente, en coupe transversale, une géométrie en forme de bourrelet avec une extrémité avant arrondie (7), et une deuxième saillie (8) présente, en coupe transversale, une géométrie en forme d'arête avec une arête vive et aiguë (9).
  3. Capsule selon l'une des revendications précédentes, caractérisée en ce que, dans leur zone inférieure (15), les saillies sont rétrécies en forme de coin.
  4. Capsule selon l'une des revendications précédentes, caractérisée en ce que les saillies (6, 8) en forme d'arêtes et/ou de bourrelets sont reliées à la paroi de l'anneau de garantie (3) par l'intermédiaire de parties arrondies (17).
  5. Capsule selon la revendication 2, caractérisée en ce que les saillies (8) en forme d'arêtes comportent une surface en saillie (16) qui, de préférence, est décalée selon un angle d de 70° à 90° par rapport à la surface périphérique intérieure de l'anneau de garantie (3).
  6. Capsule selon l'une des revendications précédentes, caractérisée en ce que les arêtes extérieures de l'anneau de garantie (3) sont arrondies.
  7. Capsule selon l'une des revendications précédentes, comprenant dans l'anneau de garantie un point d'arrachement sensiblement parallèle à l'axe de la capsule, caractérisée en ce que le point d'arrachement (12) est formé par deux évidements de préférence en V de l'anneau de garantie (3), le premier évidement (14) s'étendant de l'arête supérieure côté capsule de l'anneau de garantie en direction de l'arête inférieure et finissant en pointe, et le second évidement (13) formant une entaille dans l'axe du premier évidement de l'anneau de garantie à partir de la surface extérieure de celui-ci.
  8. Capsule selon la revendication 1, caractérisée en ce qu'il est prévu sur la périphérie au moins une saillie en forme de bourrelet (6) et en forme d'arête (8).
  9. Capsule selon la revendication 8, caractérisée en ce que trois saillies en forme de bourrelets (6) sont réparties à intervalles réguliers sur la périphérie, et au moins une saillie en forme d'arête (8) est prévue entre deux saillies en forme de bourrelets à proximité du point d'arrachement (12).
  10. Capsule selon l'une des revendications précédentes, caractérisée en ce que des évidements en forme de gorges (10) ouverts vers le bas sont ménagés sur le bord inférieur de l'anneau de garantie.
  11. Capsule selon la revendication 10, caractérisée en ce que les évidements en forme de gorges (10) sont disposés à côté des saillies en forme de bourrelets (8).
  12. Capsule selon la revendication 10, caractérisée en ce qu'un évidement (10) ménagé dans le bord inférieur de l'anneau de garantie (3) se trouve dans l'alignement du point d'arrachement (12).
  13. Capsule selon l'une des revendications précédentes, caractérisée en ce que le point de rupture théorique entre l'anneau de garantie (3) et la capsule (2) est formé par des languettes d'arrachement étroites (5) disposées sur la périphérie à distance les unes des autres.
  14. Capsule selon l'une des revendications précédentes, caractérisée en ce que des évidements (11) en forme de fenêtres sont prévus dans la zone de l'anneau de garantie.
  15. Capsule selon l'une des revendications précédentes, caractérisée en ce que les pas de vis (4) moulés sur la surface périphérique (2) de la capsule sont fractionnés.
EP93105518A 1992-04-09 1993-04-02 Capsule de bouteille à anneau garantissant la fermeture d'origine Expired - Lifetime EP0564999B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4211992A DE4211992A1 (de) 1992-04-09 1992-04-09 Flaschenkappe mit Sicherungsring
DE4211992 1992-04-09

Publications (2)

Publication Number Publication Date
EP0564999A1 EP0564999A1 (fr) 1993-10-13
EP0564999B1 true EP0564999B1 (fr) 1995-07-26

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ID=6456499

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Application Number Title Priority Date Filing Date
EP93105518A Expired - Lifetime EP0564999B1 (fr) 1992-04-09 1993-04-02 Capsule de bouteille à anneau garantissant la fermeture d'origine

Country Status (3)

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EP (1) EP0564999B1 (fr)
AT (1) ATE125508T1 (fr)
DE (2) DE4211992A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL178489B1 (pl) * 1994-06-24 2000-05-31 Crown Cork Ag Nakrętka z taśmą gwarancyjną
FR2821829B1 (fr) * 2001-03-08 2003-11-21 Tetra Laval Holding Et Finance Dispositif de bouchage, col compatible avec ce dispositif et recipient comprenant un tel col bouche par un tel dispositif
CN211845611U (zh) * 2020-01-21 2020-11-03 山东烟郓包装科技股份有限公司 一种酒瓶盖

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU546191B2 (en) * 1983-12-09 1985-08-22 Rexam Closure Systems Inc. Tamper indicating package
DE59100444D1 (de) * 1990-04-04 1993-11-11 Crown Cork Ag Verschlusskappe aus Kunststoff.
NO911503L (no) * 1990-04-27 1991-10-28 Crown Cork Ag Skrukappe med et garantibaand som er utvidbart ved foerstegangs oppskruing.
LU88070A1 (fr) * 1991-05-08 1992-08-25 Ultimos Desarrollos Cachet pour bouchons de bouteilles

Also Published As

Publication number Publication date
ATE125508T1 (de) 1995-08-15
DE59300394D1 (de) 1995-08-31
DE4211992A1 (de) 1993-10-14
EP0564999A1 (fr) 1993-10-13

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