WO1999057032A1 - Bouchon filete pour bouteilles - Google Patents

Bouchon filete pour bouteilles Download PDF

Info

Publication number
WO1999057032A1
WO1999057032A1 PCT/EP1999/002113 EP9902113W WO9957032A1 WO 1999057032 A1 WO1999057032 A1 WO 1999057032A1 EP 9902113 W EP9902113 W EP 9902113W WO 9957032 A1 WO9957032 A1 WO 9957032A1
Authority
WO
WIPO (PCT)
Prior art keywords
sealing strip
bottle
screw cap
bottle neck
bottles
Prior art date
Application number
PCT/EP1999/002113
Other languages
German (de)
English (en)
Inventor
Alexander Schmitz
Original Assignee
Cct Creative Closure Technology Gmbh
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 Cct Creative Closure Technology Gmbh filed Critical Cct Creative Closure Technology Gmbh
Priority to AU36016/99A priority Critical patent/AU3601699A/en
Publication of WO1999057032A1 publication Critical patent/WO1999057032A1/fr

Links

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
    • B65D51/00—Closures not otherwise provided for
    • B65D51/16—Closures not otherwise provided for with means for venting air or gas
    • B65D51/1633—Closures not otherwise provided for with means for venting air or gas whereby venting occurs by automatic opening of the closure, container or other element
    • B65D51/1661—Closures not otherwise provided for with means for venting air or gas whereby venting occurs by automatic opening of the closure, container or other element by means of a passage for the escape of gas between the closure and the lip of the container mouth
    • 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
    • B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
    • B65D41/04—Threaded or like caps or cap-like covers secured by rotation
    • B65D41/0407—Threaded or like caps or cap-like covers secured by rotation with integral sealing means
    • B65D41/0428—Threaded or like caps or cap-like covers secured by rotation with integral sealing means formed by a collar, flange, rib or the like contacting the top rim or the top edges or the external surface of a container neck

Definitions

  • the invention relates to a screw cap for bottles, in particular for pressurized beverage bottles, with a basic cylindrical shell with an internal thread and an essentially disk-shaped head plate, on the inside of which a thin, ring-shaped sealing strip is formed, the sealing strip being in contact with the end face and / or the outer circumference of a bottle neck is provided, the sealing strip being designed to give at least partially radially outward and / or in the direction of the head plate at a predetermined pressure in the bottle.
  • Another screw closure is known for example from EP 0 529 383.
  • a circumferential bead is formed on the head plate in a radially outer area as seen from the sealing strip.
  • the sealing strip is tubular and has a diameter corresponding to the outside diameter of the bottle neck. Due to the external rounding that is generally present on all bottle necks, the sealing strip slides over the upper area of the bottle neck when it is screwed onto the bottle and is then drawn in between the bottle neck and the bead. This ensures the tightness of the screw cap with considerable excess pressure in the bottle even if the screw cap is screwed on by hand with little effort.
  • the drinks filled in the bottles can expand very strongly, for example due to sunlight, vibrations or fermentation, and thereby generate pressures of over 10 to 12 bar. As a result, there is a risk that the material strength of the bottles will be exceeded. In the worst case, such high pressures lead to an explosion of the bottle.
  • the disadvantage here is that the bottle is permanently leaky after tearing the predetermined breaking point and therefore the bottled drink can leak or spill out. This leads to contamination of the area around the bottle.
  • the invention is therefore based on the problem of designing a screw cap of the type mentioned in such a way that exceeding a maximum pressure provided in the bottle is reliably avoided and contamination of the area surrounding the bottle is kept as low as possible when the beverage expands.
  • a holding cam provided for pressing the sealing strip against the outside of the bottle neck and surrounding the sealing strip has a recess at least at one point for receiving the elastic region of the sealing strip.
  • the screw closure according to the invention has a pressure relief valve.
  • the pressure provided, at which the sealing strip or a portion thereof moves away from the bottle neck, can be set by a corresponding elastic design of the sealing strip and the areas of the screw cap adjacent to the sealing strip. This reliably prevents an explosion of the bottle.
  • the screw cap according to the invention allows at most as much of the drink or gas located above the drink to escape from the bottle until the overpressure is reduced and the pressure is below the intended pressure. Then the sealing strip comes completely back to the bottle neck and seals the bottle. The bottle is therefore secured against further leakage of the beverage, so that the surroundings are not, or only insignificantly, contaminated when the intended pressure is exceeded.
  • the pressure at which the sealing strip moves away from the bottle neck can be determined very precisely, since it is used to press the sealing strip on on the outside of the bottle neck provided around the sealing strip retaining cam has at least one recess for receiving the elastic region of the sealing strip.
  • the sealing strip is pressed onto an area delimited by the holding cam on the outer circumference of the bottle neck.
  • the sealing strip can therefore only move away from the bottle neck in the region of the recess.
  • the dimensions of the recess and the elastic properties of the sealing strip in the region of the recess determine the pressure at which gases or liquids can escape from the bottle.
  • the effort with which the screw cap according to the invention is screwed onto the bottle has almost no influence on this.
  • the screw closure according to the invention is structurally particularly simple if the sealing strip is at least partially elastic.
  • the head plate and the jacket of the screw closure according to the invention can have high stability, while the elasticity required for the movement of the sealing strip is achieved by the sealing strip itself.
  • the sealing strip is not damaged when it is lifted off the bottle neck if the recess of the holding cam is rounded in its side edges. This ensures that the screw closure according to the invention closes again reliably after the excess pressure has escaped.
  • FIG. 1 shows a longitudinal section through a lateral portion of a screw closure according to the invention
  • FIG. 2 shows a sectional view through the screw closure from FIG. 1 along the line II-II,
  • Bottle of screw-on screw cap from FIG. 1.
  • FIG. 1 shows a lateral section of a screw cap 1 according to the invention made of plastic for a bottle 2 made of plastic PET for drinks in a longitudinal section.
  • the screw cap 1 has an essentially tubular jacket 3 with an internal thread 4 and a head plate 5 closing the jacket 3 on one side.
  • the internal thread 4 is designed in accordance with an external thread 7 arranged on a bottle neck 6 of the bottle 2.
  • the screw closure 1 has a sealing edge 8 which is perpendicular to the top plate 5 and a holding cam 9 which is arranged in a radially outer region as seen from the sealing edge 8.
  • the bottle neck 6 has a radius 10 in the region of its end face 11.
  • the sealing edge 8 is rounded in its radially inner region.
  • FIG. 2 shows the screw closure 1 from FIG. 1 in a sectional view along the line II-II. It can be seen here that the sealing edge 8 is designed all round and the retaining cam 9 has a recess 12. The recess 12 has rounded side edges 13. Damage to the sealing edge 8 upon contact with the holding cam 9 is thereby avoided.
  • the screw closure 1 has a plurality of grooves 14 as a handle.
  • FIGS. 3 and 4 show the screw cap 1 in sectional views screwed onto the bottle 2, in which the sealing edge 8 rests on the outside and on the radius 10 of the bottle neck 6 and seals the bottle 2 up to an intended pressure.
  • the sectional view of the screw cap 1 according to the invention shown in FIG. 3 shows the sealing edge 8 in the region of the recess 12 of the holding cam 9 shown in FIG. 2.
  • the sealing edge 8 is designed to be elastic and becomes radial when the pressure inside the bottle 2 exceeds a predetermined value pushed outwards.
  • the sealing edge 8 lifts off the bottle neck 6.
  • the sealing edge 8 is shown in broken lines in the drawing in the position removed from the bottle neck 6. Subsequently, fermentation gases can escape from bottle 2, for example. The direction of flow of these fermentation gases is marked with arrows in the drawing.
  • the sealing edge 8 remains in the position removed from the bottle neck 6 until the pressure drops below the intended value again.
  • the required pressure at which the sealing edge 8 moves away from the bottle neck 6 is lower, the wider the recess 12 in the holding cam 9 is dimensioned and the larger the diameter of the sealing edge 8. Furthermore, the dimensions and the material of the sealing edge 8 have a decisive influence on the pressure required.
  • the sectional view of the screw cap 1 according to the invention shown in FIG. 4 shows the sealing edge 8 in the area of the holding cam 9. It can be clearly seen here that the sealing edge 8 is prestressed against the bottle neck 6 by the holding cam 9. This reliably prevents the sealing edge 8 from moving away from the bottle neck 6 at this point and allowing bottled drinks to escape in the bottle 2.

Landscapes

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

Abstract

L'invention concerne un bouchon fileté (1) pour bouteilles (2), dans lequel une bandelette d'étanchéité (8) partiellement élastique est en appui sur la face frontale (11) ou bien sur la périphérie extérieure du col (6) de la bouteille. Ainsi, lorsque le bouchon fileté (1) est vissé sur la bouteille (2) et que la pression régnant à l'intérieur de cette dernière atteint une valeur prédéterminée, la bande d'étanchéité (8) peut sortir du col (6) de la bouteille. Lorsque la pression retombe en dessous de cette valeur prédéterminée, la bande d'étanchéité (8) se remet en place sur le col (6) de la bouteille, ce qui permet d'éviter un défaut d'étanchéité durable du bouchon fileté (1).
PCT/EP1999/002113 1998-05-07 1999-03-27 Bouchon filete pour bouteilles WO1999057032A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU36016/99A AU3601699A (en) 1998-05-07 1999-03-27 Screw cap for bottles

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1998120266 DE19820266A1 (de) 1998-05-07 1998-05-07 Schraubverschluß für Flaschen
DE19820266.0 1998-05-07

Publications (1)

Publication Number Publication Date
WO1999057032A1 true WO1999057032A1 (fr) 1999-11-11

Family

ID=7866873

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1999/002113 WO1999057032A1 (fr) 1998-05-07 1999-03-27 Bouchon filete pour bouteilles

Country Status (3)

Country Link
AU (1) AU3601699A (fr)
DE (1) DE19820266A1 (fr)
WO (1) WO1999057032A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2828173B1 (fr) * 2001-08-01 2003-10-31 Rical Sa Bouchon comprenant une jupe interieure d'etancheite cooperant avec la face exterieure d'un col de recipient
MXPA06003594A (es) 2003-10-01 2006-08-11 Obrist Closures Switzerland Un cierre.
AU2013207356B2 (en) 2012-01-06 2016-06-30 Closure Systems International Inc. Linerless closure

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB932356A (en) * 1960-10-07 1963-07-24 Domestos Ltd Container and closure therefor
EP0529383A2 (fr) 1991-08-28 1993-03-03 JACOB BERG GmbH & CO. KG Capuchon à vis en plastique pour bouteilles sous pression
DE4226935A1 (de) 1992-08-14 1994-02-17 Berolina Kunststoff Verschlußkappe, insbesondere für eine Flasche
DE4301306A1 (de) * 1993-01-20 1994-07-21 Alcoa Gmbh Verpackwerke Kunststoffverschluß

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4234010A1 (de) * 1992-10-09 1994-04-14 Hertrampf Michael Verschluß für eine Flasche oder dergleichen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB932356A (en) * 1960-10-07 1963-07-24 Domestos Ltd Container and closure therefor
EP0529383A2 (fr) 1991-08-28 1993-03-03 JACOB BERG GmbH & CO. KG Capuchon à vis en plastique pour bouteilles sous pression
DE4226935A1 (de) 1992-08-14 1994-02-17 Berolina Kunststoff Verschlußkappe, insbesondere für eine Flasche
DE4301306A1 (de) * 1993-01-20 1994-07-21 Alcoa Gmbh Verpackwerke Kunststoffverschluß

Also Published As

Publication number Publication date
AU3601699A (en) 1999-11-23
DE19820266A1 (de) 1999-11-18

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