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EP1250270A1 - Closure device and container provided with same - Google Patents

Closure device and container provided with same

Info

Publication number
EP1250270A1
EP1250270A1 EP01907676A EP01907676A EP1250270A1 EP 1250270 A1 EP1250270 A1 EP 1250270A1 EP 01907676 A EP01907676 A EP 01907676A EP 01907676 A EP01907676 A EP 01907676A EP 1250270 A1 EP1250270 A1 EP 1250270A1
Authority
EP
European Patent Office
Prior art keywords
pourer
neck
cap
edge
skirt
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.)
Granted
Application number
EP01907676A
Other languages
German (de)
French (fr)
Other versions
EP1250270B1 (en
Inventor
Philippe Odet
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.)
Tetra Laval Holdings and Finance SA
Original Assignee
Tetra Pak Closures Developpement SA
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 Tetra Pak Closures Developpement SA filed Critical Tetra Pak Closures Developpement SA
Publication of EP1250270A1 publication Critical patent/EP1250270A1/en
Application granted granted Critical
Publication of EP1250270B1 publication Critical patent/EP1250270B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
    • B65D47/12—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having removable closures
    • B65D47/127—Snap-on caps
    • B65D47/128—Snap-on caps with internal parts
    • 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
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
    • B65D47/12—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having removable closures
    • B65D47/14—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having removable closures and closure-retaining means
    • B65D47/147—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having removable closures and closure-retaining means for snap-on caps
    • B65D47/148—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having removable closures and closure-retaining means for snap-on caps with internal parts

Definitions

  • the invention relates to a device for capping a container and to a container equipped with such a device.
  • the invention relates to a device for capping a container provided with a neck, this device comprising a pourer, capable of being permanently mounted on this neck, and a cap capable of being mounted on this neck and / or this pourer being mobile between a first position where it isolates the neck and the pourer from the outside and a second position where it allows access to this neck and to this pourer, the pourer being disposed at least partially at the inside the neck.
  • the cap is provided with a skirt extending, in the aforementioned first position and from an internal surface of the cap, up to the interior of the neck.
  • This device is characterized in that this skirt carries at least one external bead capable of exerting, in the aforementioned first position and against an internal radial surface of the pourer, a force tending to press this pourer against an internal edge of the neck.
  • the upe of the invention compresses the pourer against the neck of the container, which ensures sealing, on the one hand, between the pourer and the neck and, on the other hand, between the upe and the pourer.
  • the seal between the spout and the spout is necessary throughout the lifetime of the container while the seal between the cap and the spout is useful as soon as a cover possibly blocking the spout has been removed. ie after the first use of the fluid contained in the container.
  • the force concentration obtained thanks to the bead allows a localized and firm support of the pourer against the inner edge of the neck.
  • the device incorporates one or more of the following characteristics:
  • the aforementioned edge and skirt are generally cylindrical while the force exerted by the skirt on the pourer is centrifugal with respect to an axis of symmetry of the aforementioned edge.
  • the bead In the first position, the bead is arranged opposite the edge of the neck, the force exerted by the bead tends to compress a part of the pourer against this edge.
  • This pouring compression takes advantage of its deformable nature and provides the desired seal.
  • the skirt is equipped with two external beads of support against the internal radial surface of the pourer, the second bead being provided to ensure the clipping between the cap and the pourer after the first use of the container. It is also possible to provide that the nominal outside diameter of the bead or beads is greater than or equal to the diameter of the internal radial surface of the pourer at the aforementioned edge. This ensures that the skirt of the cap tends to radially expand the pourer as soon as it is placed inside the pourer, this expansion preferably occurring at the edge of the neck, which makes it possible to effectively compress the pourer between the bead and the bottleneck.
  • the skirt is made in one piece with the cap, in a material harder than the material of the pourer.
  • the one-piece nature of the cap and the skirt gives them satisfactory solidity and rigidity, while the fact that the material constituting the skirt is harder than that of the pourer makes it possible to favor a deformation of the pourer when the skirt is pressed. against the pourer.
  • the neck, the pourer and the cap are made of plastic material.
  • the neck and the cap are made of high or medium density polyethylene while the pourer is made of low density polyethylene.
  • the invention also relates to a container for liquid, in particular a plastic bottle, equipped with a closure device as described above.
  • a container for liquid in particular a plastic bottle, equipped with a closure device as described above.
  • Such container is transportable without risk of leaks before and after the first use of the fluid it contains, and can be easily recycled because it does not include an aluminum-based seal.
  • the edge of the neck is filled by the inner end of a generally frustoconical zone of the neck.
  • FIG. 1 is a perspective view of an upper part of a milk bottle according to the invention, equipped with a closure device according to its principle, the cap of which is in a first position;
  • - Figure 2 is a perspective view similar to Figure 1 while the cap is in a second position;
  • - Figure 3 is a section along line III-III in Figure 1;
  • FIG. 4 is a section along line IV-IV in Figure 1 and
  • FIG. 5 is a section on a smaller scale along the line V-V in Figure 2.
  • the bottle 1 shown in the figures is a bottle intended to contain milk, produced by blowing a parison of high density polyethylene. Such a bottle is attractively priced while effectively fulfilling its function as a container.
  • the neck 2 of this bottle is cylindrical and the or- X 2 -X ' 2 notes its axis of symmetry.
  • This neck has a curved generatrix and it defines a generally frustoconical zone 21 whose inner end forms the edge 22 of the neck 2, the zone 21 being extended by a first flange 23 extending radially outward relative to the axis X 2 -X ' 2 .
  • a section 24 connects the flange 23 to a second flange 25, itself connected by a second section 26 to the main body 11 of bottle 1.
  • the closure device comprises a pourer 3 and an assembly 4 forming a cap made of plastic.
  • the pourer 3 is molded from low density polyethylene while the assembly 4, which is in one piece, is molded from high or medium density polyethylene.
  • the assembly 4 is therefore made of a more rigid material than that of the pourer 3.
  • Other materials can be used for molding the elements 2, 3 and 4, the material of the pourer remaining less rigid than those of the neck 2 and the set 4.
  • the pourer 3 is cylindrical and symmetrical about an axis X 3 -X ' 3 merged with the axis X 2 -X' 2 when the pourer 3 is mounted on the neck 2.
  • the pourer 3 comprises a portion 31 with a substantially generatrix straight whose edge 32 opposite to the body 11 of the bottle 1 is curved outwards, so that it forms a surface 32e for the flow of milk without contact with the neck 2.
  • the part 31 is disposed partially at the inside the neck 2.
  • a skirt 33 intended to cover the zone 21 and the flange 23 of the neck 2, the skirt 33 being provided, at its edge 34 distant from the part 31, of an attachment cord 35 intended to come into engagement against a radial surface 23a of the flange 23 opposite the part 21. This allows immobilization by cooperation of shapes of the pourer 3 on the neck 2.
  • the cord 35 has a divergent internal face 35a in the direction of the body 11, so that the pourer 3 can be put in place on the neck 2 by elastic snap-fastening by means of an elastic deformation of the skirt 33 when the pourer 3 is pushed on the neck 2 in the direction of the body 11.
  • a cover 36 is connected to the part 31 by a zone
  • the cover 36a of privileged rupture makes it possible to isolate the interior volume of the bottle 1 as long as it remains in place.
  • the cover 36 is integral with a gripping ring 37 in which a user can pass the finger to exert a force F 1 directed opposite the body 11 in order to remove this cover when it is appropriate to use milk contained in the bottle.
  • the assembly 4 comprises a ring 41 intended to be arranged around the neck 2, the ring 41 being provided with a hooking cord 42 capable of engaging against a lower surface 25a of the flange 25.
  • a hooking cord 42 capable of engaging against a lower surface 25a of the flange 25.
  • lower is meant that the surface 25a is oriented downwards when the bottle 1 is placed on a flat surface, its neck being turned upwards.
  • the ring 41 also contributes to keeping the skirt 33 in position in engagement with the flange 23.
  • the ring 41 is extended in the direction of the body of the bottle 1 by a ring 43 making it possible to hide the transition part between the neck 2 and the body and bottle 1.
  • the internal face 42a of the cord 42 is also frustoconical and divergent in the direction of the body 11, which makes it possible to envisage an elastic snap-fastening of the ring 41 on the neck 2.
  • the ring 41 is connected by a hinge 44, formed by an elastically deformable thinned zone, to a generally cylindrical cap 45 of which the center axis is denoted X 45 -X ′ 45 .
  • the cap is connected by a band 46 to the ring 41 over almost the entire circumference of this ring, the axes X 2 -X ' 2 and X 45 -X' 45 being combined .
  • the band 46 is respectively connected by two frangible zones 46a and 46b to the ring 41 and to the cap 45.
  • a tongue 46c makes it possible to remove the ring 46 by rupture of the zones 46a and 46b, which allows a pivoting movement of the cap 45 around of the axis X 44 -X ′ 44 of the hinge 44 between the positions of FIGS. 1 and 2.
  • the hinge 44 can be associated with bi-stable tongues, which makes it possible to preserve the orientation of the cap 45 in each of the positions shown in Figures 1 and 2.
  • the cap 45 is fitted with a tongue or "cap” 451 making it possible to lift it by a force F 2 shown in FIGS. 3 and 5.
  • the cap 45 is equipped with a skirt 452 which is cylindrical and centered on the axis X 45 - X '45 .
  • the skirt 452 extends in the direction of the internal volume of the bottle 1 from the internal surface 453 of the cap 45 which is oriented towards this internal volume.
  • the height H of the skirt 452 measured parallel to the axis X 45 -X '45 is such that in the closed position shown in Figures 1, 3 and 4, the lower edge 454 of the skirt 452 is located below the edge 22 of the neck 2, that is to say on the side of the interior volume of the bottle 1.
  • the external radial surface 455 of the skirt 452 is provided with two beads, referenced respectively 456 and 457, which extend radially outward relative to the surface 455.
  • the bead 456 is disposed near the edge 454, such so that it is situated at the edge 22 in the closed configuration of the cap 45 and that it is capable of exerting on the internal radial surface 31a of the part 31 a centrifugal force F 3 relative to the axes X 3 -X ' 3 and X 45 -X ′ 45 which are then combined, this effort F 3 tending to compress this part 31 against the edge 22.
  • the effort F 3 therefore makes it possible to guarantee sealing on the one hand between the pourer 3 and the neck 2, that is to say between the part 31 and the edge 22, and on the other hand between the pourer 3 and the cap assembly 4, that is to say between the bead 456 and the part 31.
  • the bead 456 makes it possible to concentrate the force exerted on the part 31 of the pourer 3 at the edge 22 which further improves the seal obtained.
  • the external diameter D x of the bead 456 is chosen to be slightly greater than the internal diameter D 2 of the surface 31a at the edge 22, so that, by simply placing the skirt 452 inside the pourer 3, an effort F 3 of sufficient intensity is obtained.
  • satisfactory results can be obtained with a difference between the diameters D x and D 2 of between 0.5 and 1 mm while these diameters are between 20 and 40 mm, preferably of the order of 30 mm.
  • the pourer 3, on the one hand, and the assembly 4 forming a cap, on the other hand, are each made in one piece by molding, so that their handling and their positioning on the neck 2 are easy.
  • the fact that the skirt 452 is in one piece with the cap 45 gives it good rigidity while its cost price is particularly attractive.
  • the invention has been described with an assembly forming a hinged cap. It is however applicable with a screwed cap.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Examining Or Testing Airtightness (AREA)
  • Glass Compositions (AREA)
  • Paper (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Cookers (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Seal Device For Vehicle (AREA)

Abstract

A closure divice for a container including a pourer designed to be fixed on a neck of the container wherein the closure device includes a cover assembly adapted to be mounted on the neck and over the pourer. The cover assembly includes a cap movable between a first position wherein it closes the neck and the pourer from the outside and a second position where it allows access to the neck and to the pourer. The pourer is arranged at least partly inside the neck. The cap is provided with a skirt extending, in the first position of the cap, inside the neck. The skirt has at least one flange capable, when the cap is in the first position, of exerting a force urging the pourer against an edge of the neck.

Description

DISPOSITIF DE BOUCHAGE ET RECIPIENT POURVU D'UN TEL DISPOSITIF SEALING DEVICE AND CONTAINER PROVIDED WITH SUCH A DEVICE
L'invention a trait à un dispositif de bouchage d'un récipient et à un récipient équipé d'un tel dispositif.The invention relates to a device for capping a container and to a container equipped with such a device.
Il est connu de réaliser des récipients pour liquide, tels que des bouteilles de lait en matière plastique, par exemple en polyéthylène haute densité. Il est essentiel que ces récipients soient bouchés de façon étanche notamment en vue de leur transport du point de vente jusqu'au lieu d'utilisation. Pour ce faire, on peut prévoir de sceller le goulot d'une bouteille avec un opercule à base d'aluminium. Cependant, le retrait d'un tel opercule s'avère délicat en pratique et il n'est pas rare que des morceaux de cet opercule restent en place sur le goulot, ce qui rend délicate l'utilisation du récipient et pose des problèmes lors de son retraitement pour valorisation car les résidus d'aluminium doivent être traités différemment du corps en matière plastique. En outre, les récipients connus ont tendance à fuir après retrait de l'opercule à base d'aluminium, c'est-à-dire après la première utilisation du fluide qu'ils contiennent.It is known to produce containers for liquid, such as milk bottles from plastic, for example from high density polyethylene. It is essential that these containers are sealed so that they can be transported from the point of sale to the place of use. To do this, we can plan to seal the neck of a bottle with an aluminum-based seal. However, the removal of such a seal proves difficult in practice and it is not uncommon for pieces of this seal to remain in place on the neck, which makes it difficult to use the container and poses problems during its reprocessing for recovery because aluminum residues must be treated differently from the plastic body. In addition, known containers tend to leak after removal of the aluminum-based seal, that is to say after the first use of the fluid they contain.
Des tentatives ont pu être effectuées pour réaliser des systèmes de bouchage de bouteilles sans opercule, notamment au moyen de bouchons vissés. Cependant, les bouteilles étant le plus souvent réalisées par soufflage d'une paraison et/ou extrusion, des tolérances de fabrication relativement importantes apparaissent au niveau de leur goulot alors que des irrégularités ne peuvent pas toujours être éliminées au niveau du plan de joint du moule. Ces variations de dimensions induisent des risques de fuite qui ne sont pas acceptables en pratique .Attempts have been made to make bottle closure systems without a lid, in particular by means of screw caps. However, since the bottles are most often produced by blowing a parison and / or extrusion, relatively large manufacturing tolerances appear at their neck while irregularities cannot always be eliminated at the level of the joint plane of the mold. . These variations in dimensions induce risks of leakage which are not acceptable in practice.
Les problèmes évoqués ci -dessus se posent également pour les bouteilles équipées d'un verseur destiné à favoriser l'écoulement d'un liquide.The problems mentioned above also arise for bottles equipped with a pourer intended to promote the flow of a liquid.
Par ailleurs, il est connu de DE-A-1 532 390 de prévoir une jupe cylindrique sur la surface intérieure du fond d'un bouchon, cette jupe étant sensée subir un effort centripète exercé par un verseur. L'étanchéité obtenue avec ce dispositif ne peut pas être garantie, notamment du fait que la jupe du bouchon n'est pas rigide mais, au contraire, prévue pour se déformer . C'est à ces inconvénients qu'entend plus particulièrement remédier l'invention en proposant un dispositif de bouchage dépourvu d'opercule en aluminium et permettant de fermer de façon étanche un récipient avant et après la première utilisation du fluide qu'il contient. Dans cet esprit, l'invention concerne un dispositif de bouchage d'un récipient pourvu d'un goulot, ce dispositif comprenant un verseur, apte à être monté de façon définitive sur ce goulot, et un capuchon apte à être monté sur ce goulot et/ou ce verseur en étant mobile entre une première position où il isole le goulot et le verseur de l'extérieur et une seconde position où il autorise l'accès à ce goulot et à ce verseur, le verseur étant disposé au moins partiellement à l'intérieur du goulot. Le capuchon est pourvu d'une jupe s 'étendant, dans la première position précitée et à partir d'une surface interne du capuchon, jusqu'à l'intérieur du goulot. Ce dispositif est caractérisé en ce que cette jupe porte au moins un bourrelet externe apte à exercer, dans la première position précitée et contre une surface radiale interne du verseur, un effort tendant à plaquer ce verseur contre un bord intérieur du goulot.Furthermore, it is known from DE-A-1 532 390 to provide a cylindrical skirt on the inner surface of the bottom of a plug, this skirt being supposed to undergo a centripetal force exercised by a tipper. The tightness obtained with this device cannot be guaranteed, in particular because the skirt of the plug is not rigid but, on the contrary, designed to deform. It is these drawbacks that the invention intends to remedy more particularly by proposing a closure device devoid of an aluminum cover and making it possible to seal a container before and after the first use of the fluid that it contains. In this spirit, the invention relates to a device for capping a container provided with a neck, this device comprising a pourer, capable of being permanently mounted on this neck, and a cap capable of being mounted on this neck and / or this pourer being mobile between a first position where it isolates the neck and the pourer from the outside and a second position where it allows access to this neck and to this pourer, the pourer being disposed at least partially at the inside the neck. The cap is provided with a skirt extending, in the aforementioned first position and from an internal surface of the cap, up to the interior of the neck. This device is characterized in that this skirt carries at least one external bead capable of exerting, in the aforementioned first position and against an internal radial surface of the pourer, a force tending to press this pourer against an internal edge of the neck.
La upe de l'invention comprime le verseur contre le goulot du récipient, ce qui permet d'assurer l'étanchéité, d'une part, entre le verseur et le goulot et, d'autre part, entre la upe et le verseur. L'étanchéité entre le verseur et le goulot est nécessaire tout au long de la durée de vie du récipient alors que l'étanchéité entre le capuchon et le verseur est utile dès qu'un opercule obturant éventuellement le verseur a été retiré, c'est-à-dire après la première utilisation du fluide contenu dans le récipient . La concentra- tion d'effort obtenue grâce au bourrelet permet un appui localisé et ferme du verseur contre le bord intérieur du goulot .The upe of the invention compresses the pourer against the neck of the container, which ensures sealing, on the one hand, between the pourer and the neck and, on the other hand, between the upe and the pourer. The seal between the spout and the spout is necessary throughout the lifetime of the container while the seal between the cap and the spout is useful as soon as a cover possibly blocking the spout has been removed. ie after the first use of the fluid contained in the container. The force concentration obtained thanks to the bead allows a localized and firm support of the pourer against the inner edge of the neck.
Selon des aspects avantageux mais non obligatoires de l'invention, le dispositif incorpore une ou plusieurs des caractéristiques suivantes :According to advantageous but not compulsory aspects of the invention, the device incorporates one or more of the following characteristics:
- Le bord et la jupe précités sont globalement cylindriques alors que l'effort exercé par la jupe sur le verseur est centrifuge par rapport à un axe de symétrie du bord précité .- The aforementioned edge and skirt are generally cylindrical while the force exerted by the skirt on the pourer is centrifugal with respect to an axis of symmetry of the aforementioned edge.
Dans la première position, le bourrelet est disposé en regard du bord du goulot, l'effort exercé par le bourrelet tendant à comprimer une partie du verseur contre ce bord. Cette compression du verseur tire parti de son caractère déformable et assure l'étanchéité recherchée.In the first position, the bead is arranged opposite the edge of the neck, the force exerted by the bead tends to compress a part of the pourer against this edge. This pouring compression takes advantage of its deformable nature and provides the desired seal.
- La jupe est équipée de deux bourrelets externes d'appui contre la surface radiale interne du verseur, le second bourrelet étant prévu pour assurer le clipsage entre le capuchon et le verseur après la première utilisation du récipient . On peut également prévoir que le diamètre extérieur nominal du ou des bourrelets est supérieur ou égal au diamètre de la surface radiale interne du verseur au niveau du bord précité. Ceci garantit que la jupe du capuchon tend à expandre radialement le verseur dès sa mise en place à l'intérieur du verseur, cette expansion se produisant de façon préférentielle au niveau du bord du goulot, ce qui permet de comprimer efficacement le verseur entre le bourrelet et le goulot.- The skirt is equipped with two external beads of support against the internal radial surface of the pourer, the second bead being provided to ensure the clipping between the cap and the pourer after the first use of the container. It is also possible to provide that the nominal outside diameter of the bead or beads is greater than or equal to the diameter of the internal radial surface of the pourer at the aforementioned edge. This ensures that the skirt of the cap tends to radially expand the pourer as soon as it is placed inside the pourer, this expansion preferably occurring at the edge of the neck, which makes it possible to effectively compress the pourer between the bead and the bottleneck.
- La jupe est formée d'une seule pièce avec le capuchon, dans un matériau plus dur que le matériau du verseur. Le caractère monobloc du capuchon et de la jupe leur confère une solidité et une rigidité satisfaisantes alors que le fait que le matériau constitutif de la jupe est plus dur que celui du verseur permet de privilégier une déformation du verseur lors de l'appui de la jupe contre le verseur.- The skirt is made in one piece with the cap, in a material harder than the material of the pourer. The one-piece nature of the cap and the skirt gives them satisfactory solidity and rigidity, while the fact that the material constituting the skirt is harder than that of the pourer makes it possible to favor a deformation of the pourer when the skirt is pressed. against the pourer.
- Le goulot, le verseur et le capuchon sont réalisés en matériau plastique. Dans ce cas, on peut prévoir que le goulot et le capuchon sont réalisé en polyéthylène haute ou moyenne densité alors que le verseur est réalisé en polyéthy- lène basse densité.- The neck, the pourer and the cap are made of plastic material. In this case, it can be provided that the neck and the cap are made of high or medium density polyethylene while the pourer is made of low density polyethylene.
L'invention concerne également un récipient pour liquide, notamment une bouteille de matière plastique, équipé d'un dispositif de bouchage tel que précédemment décrit. Un tel récipient est transportable sans risque de fuites avant et après la première utilisation du fluide qu'il contient, et peut être aisément recyclé car il ne comprend par d'opercule à base d'aluminium. Avantageusement, le bord du goulot est fourré par l'extrémité intérieure d'une zone globalement tronconique du goulot.The invention also relates to a container for liquid, in particular a plastic bottle, equipped with a closure device as described above. Such container is transportable without risk of leaks before and after the first use of the fluid it contains, and can be easily recycled because it does not include an aluminum-based seal. Advantageously, the edge of the neck is filled by the inner end of a generally frustoconical zone of the neck.
L'invention sera mieux comprise et d'autres avantages de celle-ci apparaîtront plus clairement à la lumière de la description qui va suivre d'un mode de réalisation d'un dispositif de bouchage conforme à l'invention, donnée uniquement à titre d'exemple et faite en référence aux dessins annexés dans lesquels :The invention will be better understood and other advantages thereof will appear more clearly in the light of the following description of an embodiment of a closure device according to the invention, given solely by way of illustration. 'example and made with reference to the accompanying drawings in which:
- La figure 1 est une vue en perspective d'une partie supérieure d'une bouteille de lait conforme à l'inven- tion, équipée d'un dispositif de bouchage conforme à son principe dont le capuchon est dans une première position ;- Figure 1 is a perspective view of an upper part of a milk bottle according to the invention, equipped with a closure device according to its principle, the cap of which is in a first position;
- La figure 2 est une vue en perspective analogue à la figure 1 alors que le capuchon est dans une seconde position ; - La figure 3 est une coupe selon la ligne III-III à la figure 1 ;- Figure 2 is a perspective view similar to Figure 1 while the cap is in a second position; - Figure 3 is a section along line III-III in Figure 1;
- La figure 4 est une coupe selon la ligne IV-IV à la figure 1 et- Figure 4 is a section along line IV-IV in Figure 1 and
- La figure 5 est une coupe à plus petite échelle selon la ligne V-V à la figure 2.- Figure 5 is a section on a smaller scale along the line V-V in Figure 2.
La bouteille 1 représentée sur les figures est une bouteille destinée à contenir du lait, réalisée par soufflage d'une paraison en polyéthylène haute densité. Une telle bouteille est d'un prix de revient attractif alors qu'elle remplit efficacement sa fonction de contenant.The bottle 1 shown in the figures is a bottle intended to contain milk, produced by blowing a parison of high density polyethylene. Such a bottle is attractively priced while effectively fulfilling its function as a container.
Le goulot 2 de cette bouteille est cylindrique et 1 ' or- note X2-X'2 son axe de symétrie. Ce goulot a une génératrice courbe et il définit une zone globalement tronconique 21 dont l'extrémité intérieure forme le bord 22 du goulot 2, la zone 21 se prolongeant par une première collerette 23 s 'étendant radialement vers l'extérieur par rapport à l'axe X2-X'2. Une section 24 relie la collerette 23 à une seconde collerette 25, elle-même reliée par une seconde section 26 au corps principal 11 de la bouteille 1.The neck 2 of this bottle is cylindrical and the or- X 2 -X ' 2 notes its axis of symmetry. This neck has a curved generatrix and it defines a generally frustoconical zone 21 whose inner end forms the edge 22 of the neck 2, the zone 21 being extended by a first flange 23 extending radially outward relative to the axis X 2 -X ' 2 . A section 24 connects the flange 23 to a second flange 25, itself connected by a second section 26 to the main body 11 of bottle 1.
Le dispositif de bouchage comprend un verseur 3 et un ensemble 4 formant coiffe réalisés en matière plastique. Le verseur 3 est moulé en polyethylene basse densité alors que l'ensemble 4, qui est monobloc, est moulé en polyethylene haute ou moyenne densité. L'ensemble 4 est donc réalisé dans un matériau plus rigide que celui du verseur 3. D'autres matériaux peuvent être utilisés pour le moulage des éléments 2, 3 et 4, le matériau du verseur demeurant moins rigide que ceux du goulot 2 et de l'ensemble 4.The closure device comprises a pourer 3 and an assembly 4 forming a cap made of plastic. The pourer 3 is molded from low density polyethylene while the assembly 4, which is in one piece, is molded from high or medium density polyethylene. The assembly 4 is therefore made of a more rigid material than that of the pourer 3. Other materials can be used for molding the elements 2, 3 and 4, the material of the pourer remaining less rigid than those of the neck 2 and the set 4.
Le verseur 3 est cylindrique et symétrique autour d'un axe X3-X'3 confondu avec l'axe X2-X'2 lorsque le verseur 3 est monté sur le goulot 2. Le verseur 3 comprend une partie 31 à génératrice sensiblement rectiligne dont le bord 32 opposé au corps 11 de la bouteille 1 est recourbé vers l'extérieur, de telle sorte qu'il forme une surface 32e d'écoulement du lait sans contact avec le goulot 2. La partie 31 est disposée partiellement à l'intérieur du goulot 2.The pourer 3 is cylindrical and symmetrical about an axis X 3 -X ' 3 merged with the axis X 2 -X' 2 when the pourer 3 is mounted on the neck 2. The pourer 3 comprises a portion 31 with a substantially generatrix straight whose edge 32 opposite to the body 11 of the bottle 1 is curved outwards, so that it forms a surface 32e for the flow of milk without contact with the neck 2. The part 31 is disposed partially at the inside the neck 2.
A partir d'une zone médiane de la partie 31 s'étend radialement vers l'extérieur une jupe 33 destinée à coiffer la zone 21 et la collerette 23 du goulot 2, la jupe 33 étant pourvue, au niveau de son bord 34 distant de la partie 31, d'un cordon d'accrochage 35 destiné à venir en prise contre une surface radiale 23a de la collerette 23 opposée à la partie 21. Ceci permet une immobilisation par coopération de formes du verseur 3 sur le goulot 2.From a central zone of the part 31 extends radially outward a skirt 33 intended to cover the zone 21 and the flange 23 of the neck 2, the skirt 33 being provided, at its edge 34 distant from the part 31, of an attachment cord 35 intended to come into engagement against a radial surface 23a of the flange 23 opposite the part 21. This allows immobilization by cooperation of shapes of the pourer 3 on the neck 2.
Le cordon 35 présente une face interne 35a divergente en direction du corps 11, de telle sorte que le verseur 3 peut être mis en place sur le goulot 2 par encliquetage élastique au moyen d'une déformation élastique de la jupe 33 lorsque le verseur 3 est poussé sur le goulot 2 en direction du corps 11.The cord 35 has a divergent internal face 35a in the direction of the body 11, so that the pourer 3 can be put in place on the neck 2 by elastic snap-fastening by means of an elastic deformation of the skirt 33 when the pourer 3 is pushed on the neck 2 in the direction of the body 11.
Un opercule 36 est raccordé à la partie 31 par une zoneA cover 36 is connected to the part 31 by a zone
36a de rupture privilégiée, cet opercule permettant d'isoler le volume intérieur de la bouteille 1 tant qu'il demeure en place. L'opercule 36 est solidaire d'un anneau de préhension 37 dans lequel un utilisateur peut passer le doigt pour exercer un effort F1 dirigé à l'opposé du corps 11 afin de retirer cet opercule lorsqu'il convient d'utiliser le lait contenu dans la bouteille.36a of privileged rupture, this cover making it possible to isolate the interior volume of the bottle 1 as long as it remains in place. The cover 36 is integral with a gripping ring 37 in which a user can pass the finger to exert a force F 1 directed opposite the body 11 in order to remove this cover when it is appropriate to use milk contained in the bottle.
L'ensemble 4 comprend une bague 41 destinée à être disposée autour du goulot 2, la bague 41 étant pourvue d'un cordon d'accrochage 42 apte à venir en prise contre une surface inférieure 25a de la collerette 25. Par inférieure, on entend que la surface 25a est orientée vers le bas lorsque la bouteille 1 est posée sur une surface plane, son goulot étant tourné vers le haut .The assembly 4 comprises a ring 41 intended to be arranged around the neck 2, the ring 41 being provided with a hooking cord 42 capable of engaging against a lower surface 25a of the flange 25. By lower is meant that the surface 25a is oriented downwards when the bottle 1 is placed on a flat surface, its neck being turned upwards.
La bague 41 contribue également à maintenir en position la jupe 33 en prise avec la collerette 23. La bague 41 se prolonge en direction du corps de la bouteille 1 par un anneau 43 permettant de masquer la partie de transition entre le goulot 2 et le corps et la bouteille 1.The ring 41 also contributes to keeping the skirt 33 in position in engagement with the flange 23. The ring 41 is extended in the direction of the body of the bottle 1 by a ring 43 making it possible to hide the transition part between the neck 2 and the body and bottle 1.
La face interne 42a du cordon 42 est également tronconi- que et divergente en direction du corps 11, ce qui permet d'envisager un encliquetage élastique de la bague 41 sur le goulot 2.The internal face 42a of the cord 42 is also frustoconical and divergent in the direction of the body 11, which makes it possible to envisage an elastic snap-fastening of the ring 41 on the neck 2.
La bague 41 est reliée par une charnière 44, formée par une zone amincie élastiquement déformable, à un capuchon 45 globalement cylindrique dont on note X45-X'45 l'axe central. Avant la première utilisation de la bouteille 1, le capuchon est relié par une bande 46 à la bague 41 sur la quasi-totalité de la circonférence de cette bague, les axes X2-X'2 et X45-X'45 étant confondus. La bande 46 est respectivement reliée par deux zones frangibles 46a et 46b à la bague 41 et au capuchon 45. Une languette 46ç permet de retirer la bague 46 par rupture des zones 46a et 46b, ce qui autorise un mouvement de pivotement du capuchon 45 autour de l'axe X44-X'44 de la charnière 44 entre les positions des figures 1 et 2. La charnière 44 peut être associée à des languettes bi- stables, ce qui permet de conserver l'orientation du capuchon 45 dans chacune des positions représentées aux figures 1 et 2.The ring 41 is connected by a hinge 44, formed by an elastically deformable thinned zone, to a generally cylindrical cap 45 of which the center axis is denoted X 45 -X ′ 45 . Before the first use of the bottle 1, the cap is connected by a band 46 to the ring 41 over almost the entire circumference of this ring, the axes X 2 -X ' 2 and X 45 -X' 45 being combined . The band 46 is respectively connected by two frangible zones 46a and 46b to the ring 41 and to the cap 45. A tongue 46c makes it possible to remove the ring 46 by rupture of the zones 46a and 46b, which allows a pivoting movement of the cap 45 around of the axis X 44 -X ′ 44 of the hinge 44 between the positions of FIGS. 1 and 2. The hinge 44 can be associated with bi-stable tongues, which makes it possible to preserve the orientation of the cap 45 in each of the positions shown in Figures 1 and 2.
Le capuchon 45 est équipé d'une languette ou "casquette" 451 permettant de le soulever par un effort F2 représenté aux figures 3 et 5.The cap 45 is fitted with a tongue or "cap" 451 making it possible to lift it by a force F 2 shown in FIGS. 3 and 5.
Conformément à l'invention, le capuchon 45 est équipé d'une jupe 452 qui est cylindrique et centrée sur l'axe X45- X'45. La jupe 452 s'étend en direction du volume intérieur de la bouteille 1 à partir de la surface interne 453 du capuchon 45 qui est orienté vers ce volume intérieur. La hauteur H de la jupe 452 mesurée parallèlement à l'axe X45-X'45 est telle que dans la position fermée représentée aux figures 1, 3 et 4, le bord inférieur 454 de la jupe 452 est situé au-dessous du bord 22 du goulot 2, c'est-à-dire du côté du volume intérieur de la bouteille 1.According to the invention, the cap 45 is equipped with a skirt 452 which is cylindrical and centered on the axis X 45 - X '45 . The skirt 452 extends in the direction of the internal volume of the bottle 1 from the internal surface 453 of the cap 45 which is oriented towards this internal volume. The height H of the skirt 452 measured parallel to the axis X 45 -X '45 is such that in the closed position shown in Figures 1, 3 and 4, the lower edge 454 of the skirt 452 is located below the edge 22 of the neck 2, that is to say on the side of the interior volume of the bottle 1.
La surface radiale externe 455 de la jupe 452 est pourvue de deux bourrelets, référencés respectivement 456 et 457, qui s'étendent radialement vers l'extérieur par rapport à la surface 455. Le bourrelet 456 est disposé à proximité du bord 454, de telle sorte qu'il est situé au niveau du bord 22 en configuration fermée du capuchon 45 et qu' il est apte à exercer sur la surface radiale interne 31a de la partie 31 un effort F3 centrifuge par rapport aux axes X3-X'3 et X45-X'45 qui sont alors confondus, cet effort F3 tendant à comprimer cette partie 31 contre le bord 22.The external radial surface 455 of the skirt 452 is provided with two beads, referenced respectively 456 and 457, which extend radially outward relative to the surface 455. The bead 456 is disposed near the edge 454, such so that it is situated at the edge 22 in the closed configuration of the cap 45 and that it is capable of exerting on the internal radial surface 31a of the part 31 a centrifugal force F 3 relative to the axes X 3 -X ' 3 and X 45 -X ′ 45 which are then combined, this effort F 3 tending to compress this part 31 against the edge 22.
Cette compression est possible du fait de la différence de dureté entre la jupe 452 et le bord 22 du goulot 2, d'une part, et la partie 31 du verseur 3, d'autre part, qui est plus souple ou plus "molle" que les éléments 452 et 22 entre lesquels elle est comprimée.This compression is possible due to the difference in hardness between the skirt 452 and the edge 22 of the neck 2, on the one hand, and the part 31 of the pourer 3, on the other hand, which is softer or more "soft". as the elements 452 and 22 between which it is compressed.
L'effort F3 permet donc de garantir l'étanchéité d'une part entre le verseur 3 et le goulot 2, c'est-à-dire entre la partie 31 et le bord 22, et d'autre part entre le verseur 3 et l'ensemble formant coiffe 4, c'est-à-dire entre le bourrelet 456 et la partie 31.The effort F 3 therefore makes it possible to guarantee sealing on the one hand between the pourer 3 and the neck 2, that is to say between the part 31 and the edge 22, and on the other hand between the pourer 3 and the cap assembly 4, that is to say between the bead 456 and the part 31.
Le bourrelet 456 permet de concentrer l'effort exercé sur la partie 31 du verseur 3 au niveau du bord 22 ce qui améliore encore l'étanchéité obtenue.The bead 456 makes it possible to concentrate the force exerted on the part 31 of the pourer 3 at the edge 22 which further improves the seal obtained.
Le diamètre externe Dx du bourrelet 456 est choisi légèrement supérieur au diamètre interne D2 de la surface 31a au niveau du bord 22, de telle sorte que, par la simple mise en place de la jupe 452 à l'intérieur du verseur 3, un effort F3 d'intensité suffisante est obtenu. En pratique, des résultats satisfaisants peuvent être obtenus avec une différence entre les diamètres Dx et D2 comprise entre 0,5 et 1 mm alors que ces diamètres sont compris entre 20 et 40 mm, de préférence de l'ordre de 30 mm.The external diameter D x of the bead 456 is chosen to be slightly greater than the internal diameter D 2 of the surface 31a at the edge 22, so that, by simply placing the skirt 452 inside the pourer 3, an effort F 3 of sufficient intensity is obtained. In practice, satisfactory results can be obtained with a difference between the diameters D x and D 2 of between 0.5 and 1 mm while these diameters are between 20 and 40 mm, preferably of the order of 30 mm.
Le verseur 3, d'une part, et l'ensemble 4 formant capuchon, d'autre part, sont chacun réalisés de façon monobloc par moulage, de sorte que leur manipulation et leur mise en place sur le goulot 2 sont aisées. En particulier, le fait que la jupe 452 est monobloc avec le capuchon 45 lui confère une bonne rigidité alors que son prix de revient est particulièrement attractif. L'invention a été décrite avec un ensemble formant capuchon à charnière. Elle est cependant applicable avec un capuchon vissé. The pourer 3, on the one hand, and the assembly 4 forming a cap, on the other hand, are each made in one piece by molding, so that their handling and their positioning on the neck 2 are easy. In particular, the fact that the skirt 452 is in one piece with the cap 45 gives it good rigidity while its cost price is particularly attractive. The invention has been described with an assembly forming a hinged cap. It is however applicable with a screwed cap.

Claims

REVENDICATIONS
1. Dispositif de bouchage d'un récipient (1) pourvu d'un goulot (2) , ledit dispositif comprenant un verseur (3) , apte à être monté de façon définitive sur ledit goulot, et un ensemble (4) formant coiffe apte à être monté sur ledit goulot et/ou ledit verseur et comprenant un capuchon (45) mobile entre une première position où il isole ledit goulot et ledit verseur de l'extérieur et une seconde position où il autorise l'accès audit goulot et audit verseur, ledit verseur étant disposé au moins partiellement à l'intérieur dudit goulot, ledit capuchon étant pourvu d'une upe (452) s'étendant, dans ladite première position et à partir d'une surface interne (453) dudit capuchon, jusqu'à l'intérieur dudit goulot, caractérisé en ce que ladite jupe (452) porte au moins un bourrelet externe (456) apte à exercer, dans ladite première position et contre une surface radiale interne (31a) dudit verseur, un effort (F3) tendant à plaquer ledit verseur contre un bord intérieur (22) dudit goulot (2) .1. Device for capping a container (1) provided with a neck (2), said device comprising a pourer (3), capable of being permanently mounted on said neck, and an assembly (4) forming a suitable cap to be mounted on said neck and / or said pourer and comprising a cap (45) movable between a first position where it isolates said neck and said pourer from the outside and a second position where it allows access to said neck and said pourer , said pourer being disposed at least partially inside said neck, said cap being provided with an upe (452) extending, in said first position and from an internal surface (453) of said cap, up to inside said neck, characterized in that said skirt (452) carries at least one external bead (456) capable of exerting, in said first position and against an internal radial surface (31a) of said pourer, a force (F 3 ) tending to press said pourer against an inner edge laughing (22) of said neck (2).
2. Dispositif selon la revendication 1, caractérisé en ce que ledit bord (22) et ladite jupe (452) sont globalement cylindriques et en ce que ledit effort (F3) est centrifuge par rapport à un axe (X2-X'2) de symétrie dudit bord. 2. Device according to claim 1, characterized in that said edge (22) and said skirt (452) are generally cylindrical and in that said force (F 3 ) is centrifugal with respect to an axis (X 2 -X ' 2 ) of symmetry of said edge.
3. Dispositif selon l'une des revendications précédentes, caractérisé en ce que, dans ladite première position, ledit bourrelet (456) est disposé en regard dudit bord (22), ledit effort (F3) tendant à comprimer une partie (31) dudit verseur3. Device according to one of the preceding claims, characterized in that, in said first position, said bead (456) is disposed opposite said edge (22), said force (F 3 ) tending to compress a part (31) said pourer
(3) contre ledit bord. (3) against said edge.
4. Dispositif selon l'une des revendications précédentes, caractérisé en ce que ladite jupe (452) est équipée d'un second bourrelet externe (457) d'appui contre ladite surface radiale interne (31a) dudit verseur (3) .4. Device according to one of the preceding claims, characterized in that said skirt (452) is equipped with a second external bead (457) bearing against said internal radial surface (31a) of said pourer (3).
5. Dispositif selon l'une des revendications précédentes, caractérisé en ce que le diamètre extérieur nominal (Dx) dudit ou desdits bourrelets (456, 457) est supérieur ou égal au diamètre (D2) de ladite surface radiale interne (31a) dudit verseur (3) au niveau dudit bord (22) . 5. Device according to one of the preceding claims, characterized in that the nominal outside diameter (D x ) of said one or more beads (456, 457) is greater than or equal to the diameter (D 2 ) of said internal radial surface (31a) of said pourer (3) at said edge (22).
6. Dispositif selon l'une des revendications précédentes, caractérisé en ce que ladite jupe (452) est formée d'une seule pièce avec ledit capuchon (45) , dans un matériau plus dur que le matériau dudit verseur. 6. Device according to one of the preceding claims, characterized in that said skirt (452) is formed in one piece with said cap (45), in a material harder than the material of said pourer.
7. Dispositif selon l'une des revendications précédentes, caractérisé en ce que ledit goulot (2) , ledit verseur (3) et ledit ensemble formant coiffe (4) sont réalisés en matériau plastique .7. Device according to one of the preceding claims, characterized in that said neck (2), said pourer (3) and said cap assembly (4) are made of plastic material.
8. Dispositif selon les revendications 6 et 7, caracté- πsé en ce que ledit goulot (2) et ledit ensemble formant coiffe (4) sont réalisés en polyethylene haute ou moyenne densité alors que ledit verseur (3) est réalisé en polyethylene basse densité.8. Device according to claims 6 and 7, characterized in that said neck (2) and said cap assembly (4) are made of high or medium density polyethylene while said pourer (3) is made of low density polyethylene .
9. Récipient pour liquide (1), notamment bouteille en matière plastique, équipé d'un dispositif de bouchage (2-4) selon l'une des revendications précédentes.9. Liquid container (1), in particular plastic bottle, equipped with a closure device (2-4) according to one of the preceding claims.
10. Récipient selon la revendication 9, caractérisé en ce que ledit bord (22) dudit goulot (2) est formé par l'extrémité intérieure d'une zone globalement tronconique (21) dudit goulot. 10. Container according to claim 9, characterized in that said edge (22) of said neck (2) is formed by the inner end of a generally frustoconical area (21) of said neck.
EP01907676A 2000-01-25 2001-01-23 Closure device and container provided with same Expired - Lifetime EP1250270B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0000936A FR2804089B1 (en) 2000-01-25 2000-01-25 CAPPING DEVICE AND CONTAINER PROVIDED WITH SUCH A CONTAINER
FR0000936 2000-01-25
PCT/FR2001/000215 WO2001055003A1 (en) 2000-01-25 2001-01-23 Closure device and container provided with same

Publications (2)

Publication Number Publication Date
EP1250270A1 true EP1250270A1 (en) 2002-10-23
EP1250270B1 EP1250270B1 (en) 2003-10-15

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US (1) US6851586B2 (en)
EP (1) EP1250270B1 (en)
AT (1) ATE252027T1 (en)
AU (1) AU2001235587A1 (en)
DE (1) DE60100990T2 (en)
ES (1) ES2203595T3 (en)
FR (1) FR2804089B1 (en)
PT (1) PT1250270E (en)
WO (1) WO2001055003A1 (en)

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DE60100990T2 (en) 2004-09-02
ES2203595T3 (en) 2004-04-16
DE60100990D1 (en) 2003-11-20
EP1250270B1 (en) 2003-10-15
FR2804089B1 (en) 2002-05-03
FR2804089A1 (en) 2001-07-27
US20030089746A1 (en) 2003-05-15
WO2001055003A1 (en) 2001-08-02
AU2001235587A1 (en) 2001-08-07
ATE252027T1 (en) 2003-11-15
US6851586B2 (en) 2005-02-08
PT1250270E (en) 2004-04-30

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