EP0030582B1 - Closures for screw-threaded necks - Google Patents
Closures for screw-threaded necks Download PDFInfo
- Publication number
- EP0030582B1 EP0030582B1 EP19790420067 EP79420067A EP0030582B1 EP 0030582 B1 EP0030582 B1 EP 0030582B1 EP 19790420067 EP19790420067 EP 19790420067 EP 79420067 A EP79420067 A EP 79420067A EP 0030582 B1 EP0030582 B1 EP 0030582B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- neck
- chimney
- seal
- cap
- stopper according
- 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
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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
- B65D41/02—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
- B65D41/0435—Threaded or like caps or cap-like covers secured by rotation with separate sealing elements
Definitions
- the present invention relates to improvements made to the shutters for screwed necks and it relates more particularly to a shutter of the kind in question comprising a capsule whose inner part is associated with a seal.
- Such a shutter must ensure an excellent seal, or even a good resistance to pressure on bottles to be subjected to different heat treatments such as pasteurization or even sterilization in certain extreme cases.
- the shutters in question are intended to be used on returnable bottles whose dimensions of the neck bore have large tolerances, in other words the value of this diameter is variable in large proportions.
- the bottles considered also have a great dispersion in terms of the shape of the "drink", that is to say the outside of the neck.
- shutters comprising a cap capable of being screwed onto the neck of a bottle and a seal associated with the inner face of its bottom via a chimney of the latter.
- the height of the chimney is low so that the joint has an annoying tendency to separate from said chimney provided that it adheres slightly to the neck for one reason or another.
- the improvements which are the subject of the present invention aim to remedy this drawback by providing that the central part of the bottom of the capsule from which the chimney leaves is offset towards the outside so as to increase the height of the latter.
- a shutter according to the invention comprising a capsule 1 and a seal 2 made respectively of polypropylene and ethylene-vinyl acetate (EVA).
- EVA ethylene-vinyl acetate
- the capsule 1 has a bottom 1a whose central part 1b is offset to the outside so as to constitute in this capsule a depression 1c.
- the inner face of the skirt 1 d of the capsule is provided with a thread 1e.
- a tubular chimney 1f is made integral with the central offset part 1b of the bottom, that is to say that its origin is located in the depression 1c and at its junction with the bottom 1a.
- This chimney is provided conical with opening towards the bottom, its free edge 1g being slightly opened in the direction of the skirt 1d. It is therefore observed that the height of the chimney is significantly increased compared to that of a similar element which would start from the bottom 1a. Thus this chimney has significant radial flexibility at the level of the sealing plug.
- the joint 2 is produced in the form of a heel or bowl 2a, the free edge of its side wall being extended by a frustoconical partition or lip 2b open in the direction opposite to that of the bowl 2a.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Closures For Containers (AREA)
Description
La présente invention est relative à des perfectionnements apportés aux obturateurs pour goulots vissés et elle a trait plus particulièrement à un obturateur du genre en question comportant une capsule dont la partie intérieure est associée à un joint.The present invention relates to improvements made to the shutters for screwed necks and it relates more particularly to a shutter of the kind in question comprising a capsule whose inner part is associated with a seal.
Un tel obturateur doit assurer une excellente étanchéité, voire une bonne tenue à la pression sur des bouteilles devant être soumises à différents traitements thermiques tels que la pasteurisation ou même la stérilisation dans certains cas extrêmes.Such a shutter must ensure an excellent seal, or even a good resistance to pressure on bottles to be subjected to different heat treatments such as pasteurization or even sterilization in certain extreme cases.
Les obturateurs en question sont prévus pour être utilisés sur des bouteilles consignées dont les cotes de l'alésage du goulot ont des tolérances importantes, autrement dit la valeur de ce diamètre est variable dans de grandes proportions. Les bouteilles considérées présentent également une grande dispersion au niveau de la forme du »buvant«, c'est-à-dire de la partie extérieure du goulot.The shutters in question are intended to be used on returnable bottles whose dimensions of the neck bore have large tolerances, in other words the value of this diameter is variable in large proportions. The bottles considered also have a great dispersion in terms of the shape of the "drink", that is to say the outside of the neck.
Dans les brevets US-A-3331 523, US-A-3216600 et GB-A-1 066 175, on a décrit des obturateurs comportant une capsule susceptible d'être vissée sur le goulot d'une bouteille et un joint associé à la face intérieure de son fond par l'intermédiaire d'une cheminée de ce dernier.In patents US-A-3331 523, US-A-3216600 and GB-A-1 066 175, shutters have been described comprising a cap capable of being screwed onto the neck of a bottle and a seal associated with the inner face of its bottom via a chimney of the latter.
Dans les différents documents précités, la hauteur de la cheminée est faible si bien que le joint a une fâcheuse tendance à se séparer de ladite cheminée pour peu qu'il adhère légèrement au goulot pour une raison ou une autre.In the various documents mentioned above, the height of the chimney is low so that the joint has an annoying tendency to separate from said chimney provided that it adheres slightly to the neck for one reason or another.
Les perfectionnements qui font l'objet de la présente invention visent à remédier à cet inconvénient en prévoyant que la partie centrale du fond de la capsule de laquelle part la cheminée est déportée vers l'extérieur de manière à augmenter la hauteur de celle-ci.The improvements which are the subject of the present invention aim to remedy this drawback by providing that the central part of the bottom of the capsule from which the chimney leaves is offset towards the outside so as to increase the height of the latter.
Le dessing annexé, donné à titre d'exemple, permettra de mieux comprendre l'invention, les caractéristiques qu'elle présente et les avantages qu'elle est susceptible de procurer:
- Fig. 1 est une vue éclatée montrant les deux éléments d'un obturateur suivant l'invention.
- Fig.2 est une coupe de l'obturateur en question avant sa mise en place.
- Fig. 3 est une vue semblable à celle de fig. 2, mais illustrant l'obturateur une fois vissé sur le goulot d'une bouteille.
- Fig. 1 is an exploded view showing the two elements of a shutter according to the invention.
- Fig.2 is a section of the shutter in question before its installation.
- Fig. 3 is a view similar to that of FIG. 2, but showing the shutter once screwed onto the neck of a bottle.
On a représenté en fig. 1 un obturateur suivant l'invention comportant une capsule 1 et un joint 2 réalisés respectivement en polypropylène et en éthylène-vinyl-acétate (EVA).There is shown in fig. 1 a shutter according to the invention comprising a
La capsule 1 comporte un fond 1a dont la partie centrale 1 b est déportée vers l'extérieur de manière à constituer dans cette capsule une dépression 1c. A la manière connue la face intérieure de la jupe 1 d de la capsule est pourvue d'un filetage 1e. Une cheminée tubulaire 1f est rendue solidaire de la partie centrale déportée 1 b du fond, c'est-à-dire que son origine se trouve située dans la dépression 1c et au niveau de sa jonction avec le fond 1a. Cette cheminée est prévue conique avec ouverture en direction du fond, son bord libre 1g étant légèrement épanoui en direction de la jupe 1d. On observe donc que la hauteur de la cheminée est nettement accrue par rapport à celle d'un élément semblable qui partirait du fond 1a. Ainsi cette cheminée présente-elle une souplesse radiale importante au niveau de la prise d'étanchéité.The
Le joint 2 est réalisé sous la forme d'un talon ou cuvette 2a dont le bord libre de sa paroi latérale se prolonge par une cloison tronconique ou lèvre 2b ouverte en direction opposée à celle de la cuvette 2a.The
Grâce à la souplesse de la matière constituant le joint 2, et par suite de l'élasticité de la cheminée 1f, on peut aisément engager la cuvette 2a à l'intérieur de cette cheminée comme montré en fig. 2 et 3. La paroi cylindrique de celle-ci se déforme alors pour coopérer avec la face interne en contre-dépouille de la cheminée 1f.Thanks to the flexibility of the material constituting the
A l'aide d'un poinçon tubulaire non représenté, on peut facilement retourner la lèvre 2b de manière que son bord vienne s'appliquer contre la face annulaire 1h du fond de la caosule qui entoure la dépression 1c. On observe que le rebord de la lèvre 2b se retourne légèrement contre ladite face 1h mais aussi contre la partie supérieure de la face interne de la jupe 1d.Using a tubular punch not shown, one can easily turn the
Lorsque l'obturatelir est mis en place sur le goulot 3 d'une bouteille la capsule 1 est déplacée axialement du fait que son filet 1e coopère avec celui 3a dudit goulot. Ce déplacement provoque l'entrée de la cheminée tubulaire 1f dans l'alésage 3b du goulot 3 de telle sorte que la partie correspondante de la lèvre 2b du joint 2 est appliquée élastiquement contre le débouché de cet alésage. En outre la face 1h de la 1 c vient serrer une autre partie de la lèvra du joint 2 contre l'extrémité 3c du goulot. Enfin, l'action en question de la capsule produitun pincement du rebord de la lèvre considérée entre l'intérieur de la jupe de la capsule 1 et la périphérie du goulot 3 (fig. 3).When obturate the ir is placed on the neck 3 of the
Ainsi lorsqu'on a affaire à des goulots présentant des alésages de diamètres très différents ainsi que des formes variées de leur face extérieure, on obtient une excellente étanchéité du fait que la cheminée 1f plaque toujours élastiquement une partie du joint contre les alésages en question et qu'on est assuré d'un écrasement de ce joint contre la face 3c du goulot 3 et contre sa périphérie. Une bonne étanchéité est aussi obtenue même si la verrerie est ébréchée.Thus when we are dealing with necks having bores of very different diameters as well as various shapes of their outer face, we obtain an excellent seal due to the fact that the
Lorsque l'obturateur est extrait du goulot 3 le joint 2 conserve la forme qui lui a été donnée lors du premier vissage si bien qu'on a ensuite affaire à un obturateur comportant un joint intérieur du genre de celui qu'on obtient en coulant sur son fond un »compound« de matière plastique.When the shutter is extracted from the neck 3 the
Claims (5)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE7979420067T DE2966079D1 (en) | 1979-12-07 | 1979-12-07 | Closures for screw-threaded necks |
EP19790420067 EP0030582B1 (en) | 1979-12-07 | 1979-12-07 | Closures for screw-threaded necks |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19790420067 EP0030582B1 (en) | 1979-12-07 | 1979-12-07 | Closures for screw-threaded necks |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0030582A1 EP0030582A1 (en) | 1981-06-24 |
EP0030582B1 true EP0030582B1 (en) | 1983-08-17 |
Family
ID=8186517
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19790420067 Expired EP0030582B1 (en) | 1979-12-07 | 1979-12-07 | Closures for screw-threaded necks |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0030582B1 (en) |
DE (1) | DE2966079D1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8604881D0 (en) * | 1986-02-27 | 1986-04-03 | Grace W R & Co | Container caps |
GB2425506B (en) | 2005-04-26 | 2010-11-10 | Pvaxx Res & Dev Ltd | Load carrying apparatus and method of manufacture |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3216600A (en) * | 1963-11-12 | 1965-11-09 | Owens Illinois Glass Co | Container and closure cap combination |
GB1066175A (en) * | 1964-06-19 | 1967-04-19 | Montgomery Daniel & Son Ltd | Improvements in or relating to closure devices for bottles |
US3331523A (en) * | 1965-02-15 | 1967-07-18 | Gilbert Mfg Company | Container closure member and liner therefor |
-
1979
- 1979-12-07 EP EP19790420067 patent/EP0030582B1/en not_active Expired
- 1979-12-07 DE DE7979420067T patent/DE2966079D1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2966079D1 (en) | 1983-09-22 |
EP0030582A1 (en) | 1981-06-24 |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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Owner name: SOCIETE NOUVELLE DE BOUCHONS PLASTIQUES S.N.B.P. |
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