EP0472655B1 - Spout assembly and sealing cap with spring-loaded hinge - Google Patents

Spout assembly and sealing cap with spring-loaded hinge Download PDF

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Publication number
EP0472655B1
EP0472655B1 EP90908957A EP90908957A EP0472655B1 EP 0472655 B1 EP0472655 B1 EP 0472655B1 EP 90908957 A EP90908957 A EP 90908957A EP 90908957 A EP90908957 A EP 90908957A EP 0472655 B1 EP0472655 B1 EP 0472655B1
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EP
European Patent Office
Prior art keywords
hinge
spout
sealing cap
spout body
container
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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
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EP90908957A
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German (de)
French (fr)
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EP0472655A1 (en
Inventor
Bernard Guglielmini
Pierre Pellerano
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Rical SA
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Rical SA
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    • 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
    • B65D47/08—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures
    • B65D47/0804—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures integrally formed with the base element provided with the spout or discharge passage
    • B65D47/0809—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures integrally formed with the base element provided with the spout or discharge passage and elastically biased towards both the open and the closed positions
    • B65D47/0814—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures integrally formed with the base element provided with the spout or discharge passage and elastically biased towards both the open and the closed positions by at least three hinge sections, at least one having a length different from the others

Definitions

  • the present invention relates to a pouring assembly and closure cap made of plastic material comprising a pouring body intended to be fixed to a container and a sealing capsule intended to close the pouring body and connected to the pouring body by a hinge.
  • Such pouring assemblies and closure caps have so far been produced in one piece by molding in a hard plastic material such as polypropylene.
  • the spring hinges provided on such assemblies between the pouring body and the stopper capsule correctly fulfill their function, which is to ensure that the capsule has two stable positions relative to the pouring body, only when they are produced made of hard plastic.
  • Such spring hinges are known, for example, from French patents 1 402 900 and 78 03 713.
  • patent application GB-A-2 193 193 discloses a pouring assembly and closure cap made of plastic material comprising a pouring body produced in a single first piece of flexible plastic material with means for fixing to a container, and, joined to the pouring body, a closure cap made in one piece of hard plastic material with a hinge and intended to close the pouring body in the closed position.
  • the hinge is a simple hinge and the means for fixing the pouring body comprise an outer ring of fingers which, when the capsule is joined to the pouring body, by fitting, on said fingers, a sleeve connected by the hinge to the capsule, are surrounded and therefore stiffened by said sleeve, before the assembly of the assembly by snap-fastening on a bottle neck.
  • the present invention relates to a pouring assembly and closure cap with spring hinge which, while being simple to manufacture, allows a tight fixing on a container neck, even when the neck has manufacturing defects.
  • the invention also relates to a pouring assembly and closure cap with spring hinge which, while being simple to manufacture, allows fixing by welding directly on the body of a flexible tube.
  • the pouring assembly and closure cap made of plastic material, comprises a pouring body made in a single first piece of flexible plastic material with means of attachment to a container, and, joined to the pouring body, a capsule plugging made in a single second piece of hard plastic with a hinge and intended to close the pouring body in the closed position.
  • the hinge is a bistable spring hinge ensuring the capsule two stable positions corresponding one to the open position and the other to the closed position.
  • the pouring body has a first connecting part with an undercut profile located between the fixing means and the hinge, so that the fixing means remain flexible after the stopper capsule has been joined to the pouring body.
  • the capsule has a second connecting part with undercut profile complementary to the first connecting part. The two parts are brought together in a single unit by overmolding the first part by the second part in the area of said connecting parts.
  • the realization of the pouring body in a flexible plastic material allows, either to form on the pouring body sealing means (lips, skirts, etc.) sufficiently flexible so that they compensate for possible manufacturing defects of the container neck during fixing the pouring body by screwing or snapping onto the neck, or to provide for fixing the pouring body directly by welding to the body of a flexible tube.
  • Said connecting parts can be located in the hinge area and in this case advantageously have the shape of a dovetail tenon and a dovetail mortise, respectively.
  • Said connecting parts can also be arranged around the entire periphery of the pouring body, and advantageously comprise in this case an external peripheral bead on the pouring body and an annular part with a profile complementary to the profile of said bead on a belt made in one piece with the capsule beyond the hinge.
  • the means for fixing the pouring body to the container may comprise a collar for direct fixing by welding of the pouring body to a flexible tube constituting the container, or else comprise an internal bead on an outer skirt of the pouring body, to cooperate by snap-fastening with an outer throat of the neck of a bottle or similar container.
  • Figure 1 is a side view of a pouring assembly and closure cap according to the invention, the capsule being shown in the open position;
  • Figure 2 is a vertical section on a larger scale of the assembly of Figure 1, the capsule being closed;
  • Figure 3 is a side view similar to Figure 1 of another embodiment of an assembly according to the invention;
  • Figure 4 is a vertical section, on a larger scale, of the assembly of Figure 3;
  • Figure 5 is a vertical section of a pouring assembly and closure cap for direct fixing by welding to the body of a flexible tube.
  • the pouring and sealing cap assembly made of plastic according to FIGS. 1 and 2 comprises a pouring body 1 and a capsule plug 2 connected to the pouring body 1 by a spring hinge 3.
  • the pouring body 1 essentially comprises an internal skirt 4 intended to cooperate in leaktight manner with the internal face of the neck 5 of a bottle 6, and an external skirt 7 intended to cooperate with the external face neck 5, the two skirts 4 and 7 being interconnected at their upper part by an annular connection zone 8.
  • the internal skirt 4 is extended upwards beyond the connection zone 8 in the form of a pouring spout 9.
  • a cover 10 connected by a thin veil 11 to the inner skirt 4 closes the latter, the cover 10 being able to be torn off using a pulling ring 12 during the first use.
  • the outer skirt 7 which has an inner bead 13 for fixing the pouring body 1 by snap-fastening on the neck 5 provided with an outer groove 14 is extended, at its lower end, by an outer rim 15 extending upwards under the shape of a diverging belt to the contact plane 16 between the pouring body 1 and the capsule 2, except in the area of the spring hinge 3.
  • the flange 15 ends, below the hinge 3, by an edge 17 with a profile in the shape of a tenon with an undercut, for example in a dovetail.
  • the entire pouring body as described above is made in one piece by injection molding of a flexible plastic material, for example polyethylene.
  • the closure cap 2 comprises an inner skirt 21 and an outer skirt 22 projecting downwards on a capsule bottom 23, the inner skirt 21 being intended to penetrate into the pouring spout 9 and the outer skirt 22 coming in the extension of the rim 15 of the pouring body 1.
  • the capsule 2 is injection molded in a hard plastic material such as polypropylene, in one piece with the spring hinge 3 and, between the latter and the edge 17 of the pouring body 1, with a connecting part 24 having a female profile in the form of an undercut mortise, for example in a dovetail.
  • the manufacture of the capsule 2 is carried out by overmolding the pouring body 1, that is to say the pouring body 1 is first manufactured by injection in a first mold, is then removed from this first mold and placed as an insert in a second mold in which the capsule 2, with the hinge 3 and the connecting part 24, is produced by overmolding of the pouring body 1 by the capsule 2 in the open position according to FIG. 1.
  • the overmolding is located at the zone of the hinge 3, that is to say that is to say limited to the molding of the edge 17 of the pouring body 1 by the connecting part 24 located below the hinge 3.
  • a pouring and capping capsule assembly comprises a pouring body 31, a belt 32, a capping capsule 33 and a spring hinge 34.
  • the pouring body 31 has an internal skirt 35 intended to cooperate with the internal face of a bottle neck not shown, an external skirt 36 intended to cooperate with the external face of the neck and having an internal bead 37 intended to cooperate by snap-fastening an outer groove of the neck, a cover 38 with tearing ring 39, and a pouring spout 40 projecting upwards on the connecting part 41 of the two skirts 35 and 36.
  • the connecting part 41 comprises an outer bead 42 projecting radially over the entire periphery.
  • the belt 32 includes an outer part 44 in the form of a spherical crown, extending the hemispherical capsule 33 below the contact plane 45 between the belt 32 and the capsule 33, and an internal frustoconical part 46 extend from the lower end of the part 44 upwards and inwards, ending in an annular part 47 which surrounds from the outside, around the entire periphery, the bead 42 of the pouring body 31 and has a female profile complementary to the profile of the bead 42.
  • the pouring body is first molded by injection, in a first mold. 31 from a flexible plastic material such as polyethylene.
  • the pouring body 1 is then transferred into a second mold in which the pouring body 31 is molded using the belt 32 and the capsule 33, the latter in the open position according to FIG. 3, by injection of a material. hard plastic such as polypropylene.
  • a pouring assembly and closure cap comprises a pouring body 51, a closure capsule 52 and a spring hinge 53.
  • the pouring body 51 is formed by a neck 54 extended upwards by a pouring spout 55 and downwards by a diverging collar 56 ending in a flange 57 for the connection of the pouring body 51 with a flexible tube 58.
  • the capsule 52 which has a shape seems to be that of the capsule according to FIGS. 1 and 2 comprises an inner skirt 59 cooperating with the pouring spout 55, and an outer skirt 60. Below the hinge 53, the outer skirt 60 of the capsule 52 is extended downwards by a connecting portion 61 having a male profile with an undercut, for example in the form of a dovetail tenon, the pouring body 51 having an edge 62 of complementary profile, for example in the form dovetail undercut mortise.
  • the pouring body 51 as a whole is first produced by injecting a flexible plastic material into a first mold, then is transferred to a second injection mold in which the pouring body 51 is overmolded. by the capsule, by injection of a hard plastic material.
  • the pouring and closure cap assembly thus produced can then be directly welded by the collar 57 onto a flexible tube 58 made of flexible plastic, thanks to the compatibility of the materials of the pouring body 51 and of the tube 58.
  • the spring hinge between the capsule and the pouring body can be produced according to all known embodiments of such spring hinges.
  • Tamper-evident means other than the cover (10, 38) may be provided, for example tear-off means covering the recess provided, opposite the spring hinge, in the outer skirt of the capsule to facilitate opening of the capsule. These are means known per se which have not been illustrated so as not to complicate the drawings.
  • sealing means between the pouring body and the bottle neck could consist of one or more lips or other known means, forming an integral part of the pouring body, in addition to or instead of the inner skirt (4 , 35) cooperating with the inside face of the neck.
  • Another advantage of the structure according to the invention of a pouring assembly and closure cap consists in the possibility of producing a two-color assembly, the two different materials used in the manufacture of the assembly according to the invention being able to be of different colors.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Auxiliary Methods And Devices For Loading And Unloading (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Rear-View Mirror Devices That Are Mounted On The Exterior Of The Vehicle (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Helmets And Other Head Coverings (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Cartons (AREA)

Abstract

PCT No. PCT/FR90/00346 Sec. 371 Date Nov. 12, 1991 Sec. 102(e) Date Nov. 12, 1991 PCT Filed May 17, 1990 PCT Pub. No. WO90/14287 PCT Pub. Date Nov. 29, 1990.A spout and sealing cap assembly for a container which includes a spout which is connectable to the container, a sealing cap for closing off a dispensing opening in the spout and a bi-stable hinge integrally formed with the sealing cap. The bi-stable hinge maintains the cap only in one of two stable positions, an open position and a closed position. The spout is formed as a first one-piece plastic part with an undercut profile connection portion. The sealing cap is also formed as a second one-piece plastic part with an undercut profile connection portion spaced from the bi-stable hinge. The plastic of the spout is a formed of a more flexible plastic than that of the sealing cap. The bi-stable hinge is formed integrally with the sealing cap and, thus, also is formed of the relatively rigid, hard plastic. The first and second undercut profile connection portions are interconnected in an interconnection arrangement resulting from an over-molding of the second one-piece elastic part over the first one-piece plastic part. In one embodiment, the sealing cap includes an extension extending from the hinge and having a free edge with an undercut for connection with a corresponding extension of the spout.

Description

La présente invention se rapporte à un ensemble verseur et capsule de bouchage en matière plastique comprenant un corps verseur destiné à être fixé à un récipient et une capsule de bouchage destinée à obturer le corps verseur et reliée au corps verseur par une charnièreThe present invention relates to a pouring assembly and closure cap made of plastic material comprising a pouring body intended to be fixed to a container and a sealing capsule intended to close the pouring body and connected to the pouring body by a hinge.

De tels ensembles verseurs et capsules de bouchage sont fabriqués jusqu'à présent d'une seule pièce par moulage en une matière plastique dure telle que le polypropylène. En effet, les charnières à ressort prévues sur de tels ensembles entre le corps verseur et la capsule de bouchage ne remplissent correctement leur fonction, qui est d'assurer à la capsule deux positions stables par rapport au corps verseur, que lorsqu'elles sont réalisées en une matière plastique dure.Such pouring assemblies and closure caps have so far been produced in one piece by molding in a hard plastic material such as polypropylene. In fact, the spring hinges provided on such assemblies between the pouring body and the stopper capsule correctly fulfill their function, which is to ensure that the capsule has two stable positions relative to the pouring body, only when they are produced made of hard plastic.

De telles charnières à ressort sont connues par exemple par les brevets français n° 1 402 900 et 78 03 713.Such spring hinges are known, for example, from French patents 1 402 900 and 78 03 713.

Sur les ensembles verseurs et capsules de bouchage connus réalisés d'une seule pièce avec la charnière à ressort en une matière plastique dure, l'étanchéité entre le corps verseur et le goulot du récipient doit être assurée par des moyens venus de moulage avec le corps verseur, notamment par des lèvres et/ou jupes coopérant avec le goulot du récipient. Or, en raison de la rigidité de leur matière constitutive, ces moyens d'étanchéité ne sont pas à même de compenser les défauts que peut présenter le goulot, ce qui compromet l'étanchéité. L'utilisation de joints souples rapportés sur le corps verseur qui permettraient de compenser de tels défauts n'est pas toujours possible et augmenterait le prix de revient de l'ensemble verseur et capsule.On known pouring assemblies and stopper capsules made in one piece with the spring hinge of a hard plastic material, the seal between the pouring body and the neck of the container must be ensured by means provided by molding with the body. pourer, in particular by lips and / or skirts cooperating with the neck of the container. However, due to the rigidity of their constituent material, these sealing means are not able to compensate for the defects that the neck can have, which compromises the sealing. The use of flexible seals attached to the body pourer which would compensate for such defects is not always possible and would increase the cost price of the pourer and capsule assembly.

On connaît par ailleurs par la demande de brevet GB-A-2 193 193 un ensemble verseur et capsule de bouchage en matière plastique comprenant un corps verseur réalisé d'une seule première pièce en matière plastique souple avec des moyens de fixation à un récipient, et, réunie au corps verseur, une capsule de bouchage réalisée d'une seule pièce en matière plastique dure avec une charnière et destinée à obturer le corps verseur en position fermée. La charnière est une charnière simple et les moyens de fixation du corps verseur comprennent une couronne extérieure de doigts qui, lors de la réunion de la capsule au corps verseur, par emboîtement, sur ledits doigts, d'un manchon relié par la charnière à la capsule, se trouvent ceinturés et donc rigidifiés par ledit manchon, avant la mise en place de l'ensemble par encliquetage sur un goulot de bouteille.Furthermore, patent application GB-A-2 193 193 discloses a pouring assembly and closure cap made of plastic material comprising a pouring body produced in a single first piece of flexible plastic material with means for fixing to a container, and, joined to the pouring body, a closure cap made in one piece of hard plastic material with a hinge and intended to close the pouring body in the closed position. The hinge is a simple hinge and the means for fixing the pouring body comprise an outer ring of fingers which, when the capsule is joined to the pouring body, by fitting, on said fingers, a sleeve connected by the hinge to the capsule, are surrounded and therefore stiffened by said sleeve, before the assembly of the assembly by snap-fastening on a bottle neck.

Un autre problème se pose pour les ensembles verseurs et capsules de bouchage prévus pour des tubes souples pour matières pâteuses, par exemple des tubes de dentifrice. A l'heure actuelle, ces tubes sont réalisés de plus en plus en matière plastique souple, notamment en polyéthylène, ou en un complexe comprenant un film extérieur de polyéthylène. Dans ces conditions, un ensemble verseur et capsule de bouchage réalisé d'une seule pièce en une matière plastique dure telle que le polypropylène pour permettre à la charnière à ressort prévue entre les deux pièces de remplir sa fonction, ne peut pas être soudé directement au tube souple, mais doit être vissé sur un embout à goulot fileté en matière plastique souple, notamment en polyéthylène, soudé au corps proprement dit du tube souple. Or, il serait désirable de pouvoir réaliser des ensembles verseurs et capsules de bouchage avec charnière à ressort qui puissent ainsi être fixés par soudage directement sur le corps des tubes souples.Another problem arises for the pouring assemblies and closure caps provided for flexible tubes for pasty materials, for example tubes of toothpaste. At present, these tubes are increasingly made of flexible plastic, in particular polyethylene, or a complex comprising an outer film of polyethylene. Under these conditions, a pouring assembly and closure cap made in one piece from a hard plastic material such as polypropylene to allow the spring hinge provided between the two pieces to fulfill its function, cannot be welded directly to the flexible tube, but must be screwed onto a threaded neck end piece in flexible plastic material, in particular in polyethylene, welded to the actual body of the flexible tube. However, it would be desirable to be able to produce pouring assemblies and stopper capsules with spring hinges which can thus be fixed by welding directly on the body of the flexible tubes.

La présente invention a pour objet un ensemble verseur et capsule de bouchage avec charnière à ressort qui, tout en étant de fabrication simple, permet une fixation étanche sur un goulot de récipient, même lorsque le goulot présente des défauts de fabrication. L'invention a également pour objet un ensemble verseur et capsule de bouchage avec charnière à ressort qui, tout en étant d'une fabrication simple, permet une fixation par soudage directement sur le corps d'un tube souple.The present invention relates to a pouring assembly and closure cap with spring hinge which, while being simple to manufacture, allows a tight fixing on a container neck, even when the neck has manufacturing defects. The invention also relates to a pouring assembly and closure cap with spring hinge which, while being simple to manufacture, allows fixing by welding directly on the body of a flexible tube.

Tel que revendiqué, l'ensemble verseur et capsule de bouchage en matière plastique, comprend un corps verseur réalisé d'une seule première pièce en matière plastique souple avec des moyens de fixation à un récipient, et, réunie au corps verseur, une capsule de bouchage réalisée d'une seule seconde pièce en matière plastique dure avec une charnière et destinée à obturer le corps verseur en position fermée. Selon l' invention, la charnière est une charnière à ressort bistable assurant à la capsule deux positions stables correspondant l'une à la position ouverte et l'autre à la position fermée. Le corps verseur présente une première partie de liaison à profil en contre-dépouille située entre les moyens de fixation et la charnière, de sorte que les moyens de fixation restent souples après réunion de la capsule de bouchage au corps verseur, La capsule présente une seconde partie de liaison à profil en contre-dépouille complémentaire de la première partie de liaison. Les deux pièces sont réunies en un ensemble uni taire par surmoulage de la première pièce par la seconde pièce dans la zone desdites parties de liaison.As claimed, the pouring assembly and closure cap made of plastic material, comprises a pouring body made in a single first piece of flexible plastic material with means of attachment to a container, and, joined to the pouring body, a capsule plugging made in a single second piece of hard plastic with a hinge and intended to close the pouring body in the closed position. According to the invention, the hinge is a bistable spring hinge ensuring the capsule two stable positions corresponding one to the open position and the other to the closed position. The pouring body has a first connecting part with an undercut profile located between the fixing means and the hinge, so that the fixing means remain flexible after the stopper capsule has been joined to the pouring body. The capsule has a second connecting part with undercut profile complementary to the first connecting part. The two parts are brought together in a single unit by overmolding the first part by the second part in the area of said connecting parts.

La réalisation du corps verseur en une matière plastique souple permet, soit de former sur le corps verseur des moyens d'étanchéité (lèvres, jupes, etc.) suffisamment souples pour qu'ils compensent d'éventuels défauts de fabrication du goulot de récipient lors de la fixation du corps verseur par vissage ou encliquetage sur le goulot, soit de prévoir la fixation du corps verseur directement par soudage sur le corps d'un tube souple.The realization of the pouring body in a flexible plastic material allows, either to form on the pouring body sealing means (lips, skirts, etc.) sufficiently flexible so that they compensate for possible manufacturing defects of the container neck during fixing the pouring body by screwing or snapping onto the neck, or to provide for fixing the pouring body directly by welding to the body of a flexible tube.

Lesdites parties de liaison peuvent être localisées dans la zone de la charnière et présenter dans ce cas avantageusement la forme d'un tenon en queue d'aronde et d'une mortaise en queue d'aronde, respectivement.Said connecting parts can be located in the hinge area and in this case advantageously have the shape of a dovetail tenon and a dovetail mortise, respectively.

Lesdites parties de liaison peuvent également être disposées sur tout le pourtour du corps verseur, et comprendre dans ce cas avantageusement un bourrelet périphérique extérieur sur le corps verseur et une partie annulaire de profil complémentaire du profil dudit bourrelet sur une ceinture réalisée d'une seule pièce avec la capsule au-delà de la charnière.Said connecting parts can also be arranged around the entire periphery of the pouring body, and advantageously comprise in this case an external peripheral bead on the pouring body and an annular part with a profile complementary to the profile of said bead on a belt made in one piece with the capsule beyond the hinge.

Les moyens de fixation du corps verseur sur le récipient peuvent comprendre un collet pour la fixation directe par soudage du corps verseur à un tube souple constituant le récipient, ou bien comprendre un bourrelet intérieur sur une jupe extérieure du corps verseur, pour coopérer par encliquetage avec une gorge extérieure du goulot d'un flacon ou récipient analogue.The means for fixing the pouring body to the container may comprise a collar for direct fixing by welding of the pouring body to a flexible tube constituting the container, or else comprise an internal bead on an outer skirt of the pouring body, to cooperate by snap-fastening with an outer throat of the neck of a bottle or similar container.

D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description ci-après de plusieurs modes de réalisation illustratifs et non limitatifs de l'invention représentés sur les dessins annexés, sur lesquels :
   la figure 1 est une vue latérale d'un ensemble verseur et capsule de bouchage conforme à l'invention, la capsule étant représentée en position ouverte;
   la figure 2 est une coupe verticale à plus grande échelle de l'ensemble de la figure 1, la capsule étant fermée;
   la figure 3 est une vue latérale analogue à la figure 1 d'un autre mode de réalisation d'un ensemble conforme à l'invention;
   la figure 4 est une coupe verticale, à plus grande échelle, de l'ensemble de la figure 3;
   la figure 5 est une coupe verticale d'un ensemble verseur et capsule de bouchage pour la fixation directe par soudage au corps d'un tube souple.Other characteristics and advantages of the invention will appear on reading the following description of several illustrative and non-limiting embodiments of the invention shown in the accompanying drawings, in which:
Figure 1 is a side view of a pouring assembly and closure cap according to the invention, the capsule being shown in the open position;
Figure 2 is a vertical section on a larger scale of the assembly of Figure 1, the capsule being closed;
Figure 3 is a side view similar to Figure 1 of another embodiment of an assembly according to the invention;
Figure 4 is a vertical section, on a larger scale, of the assembly of Figure 3;
Figure 5 is a vertical section of a pouring assembly and closure cap for direct fixing by welding to the body of a flexible tube.

L'ensemble verseur et capsule de bouchage en matière plastique suivant les figures 1 et 2 comprend un corps verseur 1 et une capsule de bouchage 2 reliée au corps verseur 1 par une charnière à ressort 3.The pouring and sealing cap assembly made of plastic according to FIGS. 1 and 2 comprises a pouring body 1 and a capsule plug 2 connected to the pouring body 1 by a spring hinge 3.

Tel que cela apparaît sur la figure 2, le corps verseur 1 comprend essentiellement une jupe intérieure 4 destinée à coopérer de façon étanche avec la face intérieure du goulot 5 d'un flacon 6, et une jupe extérieure 7 destinée à coopérer avec la face extérieure du goulot 5, les deux jupes 4 et 7 étant reliées entre elles à leur partie supérieure par une zone de liaison annulaire 8. La jupe intérieure 4 est prolongée vers la haut au-delà de la zone de liaison 8 sous la forme d'un bec verseur 9. Un opercule 10 relié par un voile mince 11 à la jupe intérieure 4 obture cette dernière, l'opercule 10 pouvant être arraché à l'aide d'un anneau de traction 12 lors de la première utilisation.As shown in FIG. 2, the pouring body 1 essentially comprises an internal skirt 4 intended to cooperate in leaktight manner with the internal face of the neck 5 of a bottle 6, and an external skirt 7 intended to cooperate with the external face neck 5, the two skirts 4 and 7 being interconnected at their upper part by an annular connection zone 8. The internal skirt 4 is extended upwards beyond the connection zone 8 in the form of a pouring spout 9. A cover 10 connected by a thin veil 11 to the inner skirt 4 closes the latter, the cover 10 being able to be torn off using a pulling ring 12 during the first use.

La jupe extérieure 7 qui comporte un bourrelet intérieur 13 pour la fixation du corps verseur 1 par encliquetage sur le goulot 5 muni d'une gorge extérieure 14 est prolongée, à son extrémité inférieure, par un rebord extérieur 15 s'étendant vers la haut sous la forme d'une ceinture divergente jusqu'au plan de contact 16 entre le corps verseur 1 et la capsule 2, excepté dans la zone de la charnière à ressort 3. Dans cette zone, le rebord 15 se termine, en dessous de la charnière 3, par un bord 17 à profil en forme de tenon à contredépouille, par exemple en queue d'aronde.The outer skirt 7 which has an inner bead 13 for fixing the pouring body 1 by snap-fastening on the neck 5 provided with an outer groove 14 is extended, at its lower end, by an outer rim 15 extending upwards under the shape of a diverging belt to the contact plane 16 between the pouring body 1 and the capsule 2, except in the area of the spring hinge 3. In this area, the flange 15 ends, below the hinge 3, by an edge 17 with a profile in the shape of a tenon with an undercut, for example in a dovetail.

L'ensemble du corps verseur tel que décrit ci-dessus est réalisé d'une seule pièce par moulage par injection d'une matière plastique souple, par exemple de polyéthylène.The entire pouring body as described above is made in one piece by injection molding of a flexible plastic material, for example polyethylene.

La capsule de bouchage 2 comprend une jupe intérieure 21 et une jupe extérieure 22 faisant saillie vers le bas sur un fond de capsule 23, la jupe intérieure 21 étant destinée à pénétrer dans le bec verseur 9 et la jupe extérieure 22 à venir dans le prolongement du rebord 15 du corps verseur 1. La capsule 2 est moulé par injection en une matière plastique dure telle que le polypropylène, d'une pièce avec la charnière 3 à ressort et, entre cette dernière et le bord 17 du corps verseur 1, avec une partie de liaison 24 ayant un profil femelle en forme de mortaise à contre-dépouille, par exemple en queue d'aronde. La fabrication de la capsule 2 s'effectue par surmoulage du corps verseur 1, c'est-à-dire que le corps verseur 1 est d'abord fabriqué par injection dans un premier moule, est ensuite retiré de ce premier moule et placé en tant qu'insert dans un second moule dans lequel la capsule 2, avec la charnière 3 et la partie de liaison 24, est réalisée par surmoulage du corps verseur 1 par la capsule 2 dans la position ouverte selon la figure 1. Le surmoulage est localisé à la zone de la charnière 3, c'est-à-dire limité au surmoulage du bord 17 du corps verseur 1 par la partie de liaison 24 située en dessous de la charnière 3.The closure cap 2 comprises an inner skirt 21 and an outer skirt 22 projecting downwards on a capsule bottom 23, the inner skirt 21 being intended to penetrate into the pouring spout 9 and the outer skirt 22 coming in the extension of the rim 15 of the pouring body 1. The capsule 2 is injection molded in a hard plastic material such as polypropylene, in one piece with the spring hinge 3 and, between the latter and the edge 17 of the pouring body 1, with a connecting part 24 having a female profile in the form of an undercut mortise, for example in a dovetail. The manufacture of the capsule 2 is carried out by overmolding the pouring body 1, that is to say the pouring body 1 is first manufactured by injection in a first mold, is then removed from this first mold and placed as an insert in a second mold in which the capsule 2, with the hinge 3 and the connecting part 24, is produced by overmolding of the pouring body 1 by the capsule 2 in the open position according to FIG. 1. The overmolding is located at the zone of the hinge 3, that is to say that is to say limited to the molding of the edge 17 of the pouring body 1 by the connecting part 24 located below the hinge 3.

Selon les figures 3 et 4, un ensemble verseur et capsule de bouchage comprend un corps verseur 31, une ceinture 32, une capsule de bouchage 33 et une charnière à ressort 34.According to FIGS. 3 and 4, a pouring and capping capsule assembly comprises a pouring body 31, a belt 32, a capping capsule 33 and a spring hinge 34.

Le corps verseur 31 présente une jupe intérieure 35 destinée à coopérer avec la face intérieure d'un goulot de flacon non représenté, une jupe extérieure 36 destinée à coopérer avec la face extérieure du goulot et présentant un bourrelet intérieur 37 destiné à coopérer par encliquetage avec une gorge extérieure du goulot, un opercule 38 avec anneau d'arrachage 39, et une bec verseur 40 faisant saillie vers le haut sur la partie de liaison 41 des deux jupes 35 et 36. Il est à noter que la partie de liaison 41 comporte un bourrelet extérieur 42 faisant saillie radialement sur tout le pourtour.The pouring body 31 has an internal skirt 35 intended to cooperate with the internal face of a bottle neck not shown, an external skirt 36 intended to cooperate with the external face of the neck and having an internal bead 37 intended to cooperate by snap-fastening an outer groove of the neck, a cover 38 with tearing ring 39, and a pouring spout 40 projecting upwards on the connecting part 41 of the two skirts 35 and 36. It should be noted that the connecting part 41 comprises an outer bead 42 projecting radially over the entire periphery.

La capsule de bouchage 33 de forme hémisphérique, munie d'une jupe intérieure 43 destinée à coopérer avec le bec verseur 40, est reliée par la charnière à ressort 34 à une ceinture 32 qui assure sa liaison avec le corps verseur 31. La ceinture 32 comprend une partie extérieure 44 en forme de couronne sphérique, prolongeant la capsule hémisphérique 33 en dessous du plan de contact 45 entre la ceinture 32 et la capsule 33, et une partie intérieure tronconique 46 s'étendent depuis l'extrémité inférieure de la partie 44 vers le haut et vers l'intérieur pour se terminer par une partie annulaire 47 qui entoure de l'extérieur, sur tout le pourtour, le bourrelet 42 du corps verseur 31 et présente un profil femelle complémentaire du profil du bourrelet 42.The closure cap 33 of hemispherical shape, provided with an inner skirt 43 intended to cooperate with the pouring spout 40, is connected by the spring hinge 34 to a belt 32 which ensures its connection with the pouring body 31. The belt 32 includes an outer part 44 in the form of a spherical crown, extending the hemispherical capsule 33 below the contact plane 45 between the belt 32 and the capsule 33, and an internal frustoconical part 46 extend from the lower end of the part 44 upwards and inwards, ending in an annular part 47 which surrounds from the outside, around the entire periphery, the bead 42 of the pouring body 31 and has a female profile complementary to the profile of the bead 42.

Pour la fabrication de l'ensemble suivant les figures 3 et 4, on moule d'abord par injection, dans un premier moule, le corps verseur 31 à partir d'une matière plastique souple telle que le polyéthylène. On transfère ensuite le corps verseur 1 dans un second moule dans lequel on surmoule le corps verseur 31 à l'aide de la ceinture 32 et de la capsule 33, cette dernière dans la position ouverte suivant la figure 3, par injection d'une matière plastique dure telle que le polypropylène.For the manufacture of the assembly according to FIGS. 3 and 4, the pouring body is first molded by injection, in a first mold. 31 from a flexible plastic material such as polyethylene. The pouring body 1 is then transferred into a second mold in which the pouring body 31 is molded using the belt 32 and the capsule 33, the latter in the open position according to FIG. 3, by injection of a material. hard plastic such as polypropylene.

Dans le mode de réalisation suivant la figure 5, un ensemble verseur et capsule de bouchage comprend un corps verseur 51, une capsule de bouchage 52 et une charnière à ressort 53.In the embodiment according to FIG. 5, a pouring assembly and closure cap comprises a pouring body 51, a closure capsule 52 and a spring hinge 53.

Le corps verseur 51 est formé d'un col 54 prolongé vers le haut par un bec verseur 55 et vers le bas par un collet 56 divergent se terminant par un rebord 57 pour la liaison du corps verseur 51 avec un tube souple 58.The pouring body 51 is formed by a neck 54 extended upwards by a pouring spout 55 and downwards by a diverging collar 56 ending in a flange 57 for the connection of the pouring body 51 with a flexible tube 58.

La capsule 52 qui présente une forme semble à celle de la capsule suivant les figures 1 et 2 comprend une jupe intérieure 59 coopérant avec le bec verseur 55, et une jupe extérieure 60. En dessous de la charnière 53, la jupe extérieure 60 de la capsule 52 est prolongée vers le bas par une partie de liaison 61 ayant un profil mâle à contre-dépouille, par exemple en forme de tenon en queue d'aronde, le corps verseur 51 présentant un bord 62 de profil complémentaire, par exemple en forme de mortaise à contre-dépouille en forme de queue d'aronde.The capsule 52 which has a shape seems to be that of the capsule according to FIGS. 1 and 2 comprises an inner skirt 59 cooperating with the pouring spout 55, and an outer skirt 60. Below the hinge 53, the outer skirt 60 of the capsule 52 is extended downwards by a connecting portion 61 having a male profile with an undercut, for example in the form of a dovetail tenon, the pouring body 51 having an edge 62 of complementary profile, for example in the form dovetail undercut mortise.

Dans ce mode de réalisation également, le corps verseur 51 dans son ensemble est d'abord réalisé par injection d'une matière plastique souple dans un premier moule, puis est transféré dans un second moule d'injection dans lequel le corps verseur 51 est surmoulé par la capsule, par injection d'une matière plastique dure.Also in this embodiment, the pouring body 51 as a whole is first produced by injecting a flexible plastic material into a first mold, then is transferred to a second injection mold in which the pouring body 51 is overmolded. by the capsule, by injection of a hard plastic material.

L'ensemble verseur et capsule de bouchage ainsi réalisé peut ensuite être directement soudé par le collet 57 sur un tube souple 58 en matière plastique souple, grâce à la compatilibité des matières du corps verseur 51 et du tube 58.The pouring and closure cap assembly thus produced can then be directly welded by the collar 57 onto a flexible tube 58 made of flexible plastic, thanks to the compatibility of the materials of the pouring body 51 and of the tube 58.

Il y a lieu de noter que les modes de réalisation décrits ci-dessus et illustrés par les dessins annexés n'ont été donnés qu'à titre d'exemples non limitatifs et que de nombreuses modifications et variantes sont possibles dans le cadre de l'invention défini par les revendications.It should be noted that the embodiments described above and illustrated by the appended drawings have been given only by way of nonlimiting examples and that numerous modifications and variants are possible within the framework of invention defined by the claims.

Ainsi, la charnière à ressort entre la capsule et le corps verseur peut être réalisée suivant tous les modes de réalisation connus de telles charnières à ressort.Thus, the spring hinge between the capsule and the pouring body can be produced according to all known embodiments of such spring hinges.

Des moyens d'inviolabilité autres que l'opercule (10, 38) peuvent être prévus, par exemple des moyens arrachables recouvrant le creux prévu, à l'opposé de la charnière à ressort, dans la jupe extérieure de la capsule pour faciliter l'ouverture de la capsule. Il s'agit là de moyens connus en soi qui n'ont pas été illustrés pour ne pas compliquer les dessins.Tamper-evident means other than the cover (10, 38) may be provided, for example tear-off means covering the recess provided, opposite the spring hinge, in the outer skirt of the capsule to facilitate opening of the capsule. These are means known per se which have not been illustrated so as not to complicate the drawings.

Au lieu de la fixation par encliquetage selon les figures 1 à 4 du corps verseur sur le goulot de flacon, il serait possible de prévoir une fixation par vissage.Instead of the snap fastening according to FIGS. 1 to 4 of the pouring body on the bottle neck, it would be possible to provide a fastening by screwing.

Par ailleurs, les moyens d'étanchéité entre le corps verseur et le goulot de flacon pourraient être constitués par une ou plusieurs lèvres ou d'autres moyens connus, faisant partie intégrante du corps verseur, en plus ou au lieu de la jupe intérieure (4, 35) coopérant avec la face intérieure du goulot.Furthermore, the sealing means between the pouring body and the bottle neck could consist of one or more lips or other known means, forming an integral part of the pouring body, in addition to or instead of the inner skirt (4 , 35) cooperating with the inside face of the neck.

Un autre intérêt de la structure conforme à l'invention d'un ensemble verseur et capsule de bouchage consiste dans la possibilité de réalisation d'un ensemble bicolore, les deux matières différentes entrant dans la fabrication de l'ensemble conforme à l'invention pouvant être de couleurs différentes.Another advantage of the structure according to the invention of a pouring assembly and closure cap consists in the possibility of producing a two-color assembly, the two different materials used in the manufacture of the assembly according to the invention being able to be of different colors.

Claims (7)

  1. Spout and sealing cap assembly made of plastic material and comprising a spout body (1, 31, 51) made in one first piece of flexible plastic material with means (7, 13; 36, 37; 56, 57) for fixing to a container (6, 58), and, connected to the spout body, a sealing cap (2, 33, 52) made in one second piece of hard plastic material with a hinge (3, 34, 53) and designed to close the spout body in the closed position, characterised in that
    - the hinge (3, 34, 53) is a bistable spring-loaded hinge providing the cap (2, 33, 52) with two stable positions, one corresponding to the open position and the other to the closed position,
    - the spout body (1, 31, 51) comprises a first connecting portion (17, 42, 62) of undercut profile situated between the fixing means and the hinge, so that the fixing means remain flexible after connection of the sealing cap to the spout body,
    - the cap (2, 33, 52) comprises a second connecting portion (24, 47, 61) of undercut profile complementary to the first connecting portion, and
    - the two components are connected into a unitary assembly by moulding the second component over the first component in the region of said connecting portions (17, 24, 42, 47; 62, 61).
  2. Assembly according to claim 1, characterised in that said connecting portions (17, 24; 62, 61) are located in the region of the hinge (3, 53).
  3. Assembly according to claim 2, characterised in that said connecting portions (17, 24; 62, 61) have the form of a dovetail-shaped tenon and a dovetail-shaped mortise respectively.
  4. Assembly according to claim 1, characterised in that said connecting portions (42, 47) are arranged over the whole periphery of the spout body (31).
  5. Assembly according to claim 4, characterised in that said connecting portions (42, 47) comprise an outer peripheral bead on the spout body (31) and an annular portion (47) with a profile complementary to the profile of said bead (42) on a belt (32) made in one piece with the cap (33) beyond the hinge (34).
  6. Assembly according to any of the preceding claims, characterised in that the means for fixing the spout body to the container comprise a collar (56, 57) for direct fixing by welding the spout body (51) to a flexible tube (58) constituting the container.
  7. Assembly according to any of claims 1 to 5, characterised in that the means for fixing the spout body to the container comprise an inner bead (13, 37) on an outer skirt (7, 36) of the spout body, for cooperating by snap fitting with an outer groove (14) of the neck (5) of a bottle (6) or like container.
EP90908957A 1989-05-17 1990-05-17 Spout assembly and sealing cap with spring-loaded hinge Expired - Lifetime EP0472655B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR8906433A FR2647088B1 (en) 1989-05-17 1989-05-17 POURING ASSEMBLY AND CAPPING CAP WITH SPRING HINGE
FR8906433 1989-05-17
PCT/FR1990/000346 WO1990014287A1 (en) 1989-05-17 1990-05-17 Spout assembly and sealing cap with spring-loaded hinge

Publications (2)

Publication Number Publication Date
EP0472655A1 EP0472655A1 (en) 1992-03-04
EP0472655B1 true EP0472655B1 (en) 1994-06-15

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EP90908957A Expired - Lifetime EP0472655B1 (en) 1989-05-17 1990-05-17 Spout assembly and sealing cap with spring-loaded hinge

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US (1) US5301849A (en)
EP (1) EP0472655B1 (en)
JP (1) JPH05500002U (en)
AT (1) ATE107254T1 (en)
AU (1) AU631432B2 (en)
CA (1) CA2057906A1 (en)
DE (1) DE69010003T2 (en)
DK (1) DK0472655T3 (en)
ES (1) ES2055434T3 (en)
FR (1) FR2647088B1 (en)
GR (1) GR1003022B (en)
NO (1) NO179939C (en)
PT (1) PT94061B (en)
WO (1) WO1990014287A1 (en)
ZA (1) ZA903791B (en)

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Publication number Publication date
EP0472655A1 (en) 1992-03-04
NO914499D0 (en) 1991-11-18
DE69010003D1 (en) 1994-07-21
JPH05500002U (en) 1993-02-04
PT94061A (en) 1991-01-08
DK0472655T3 (en) 1994-11-07
AU631432B2 (en) 1992-11-26
DE69010003T2 (en) 1994-09-22
FR2647088A1 (en) 1990-11-23
AU5747090A (en) 1990-12-18
ATE107254T1 (en) 1994-07-15
NO179939C (en) 1997-01-15
NO914499L (en) 1991-11-18
FR2647088B1 (en) 1991-11-22
ES2055434T3 (en) 1994-08-16
GR1003022B (en) 1998-12-03
PT94061B (en) 1997-04-30
ZA903791B (en) 1991-03-27
WO1990014287A1 (en) 1990-11-29
NO179939B (en) 1996-10-07
CA2057906A1 (en) 1990-11-18
US5301849A (en) 1994-04-12
GR900100376A (en) 1991-10-10

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