EP1360118A1 - Closure cap comprising means for securing a moulded joint - Google Patents

Closure cap comprising means for securing a moulded joint

Info

Publication number
EP1360118A1
EP1360118A1 EP02706854A EP02706854A EP1360118A1 EP 1360118 A1 EP1360118 A1 EP 1360118A1 EP 02706854 A EP02706854 A EP 02706854A EP 02706854 A EP02706854 A EP 02706854A EP 1360118 A1 EP1360118 A1 EP 1360118A1
Authority
EP
European Patent Office
Prior art keywords
plug
projection
seal
transverse wall
assembly according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP02706854A
Other languages
German (de)
French (fr)
Other versions
EP1360118B1 (en
Inventor
Philippe Nusbaum
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.)
Bericap SARL
Original Assignee
Bericap SARL
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 Bericap SARL filed Critical Bericap SARL
Publication of EP1360118A1 publication Critical patent/EP1360118A1/en
Application granted granted Critical
Publication of EP1360118B1 publication Critical patent/EP1360118B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
    • B65D41/04—Threaded or like caps or cap-like covers secured by rotation
    • B65D41/0435—Threaded or like caps or cap-like covers secured by rotation with separate sealing elements
    • B65D41/045—Discs

Definitions

  • Cap comprising means for attaching a cast joint
  • the invention relates to an assembly comprising a plug and a seal placed by pouring into the bottom of the plug, as well as a method for producing such a plug.
  • the invention relates more particularly to plastic plugs comprising a cylindrical skirt and a transverse end wall, the seal being cast against said transverse end wall.
  • Such plugs are already known, in which the fitting of the seal is done by depositing a certain volume of material constituting the seal on the transverse wall, using a distributor.
  • the deposited material is hot, liquid or pasty, and therefore spreads over the internal face of the transverse wall.
  • the joint is then pressed against the transverse wall using a tool. Physicochemical bonding of the poured joint then occurs on the internal face of the transverse wall.
  • the adhesion of the joint to the transverse wall is not optimal. It sometimes happens that the seal comes off from said wall, and can thus escape from the plug, in particular during storage of the plug-seal assembly and its transport for mounting on a container neck. The seal between the cap and the container neck on which it is mounted can no longer be ensured.
  • the annular projection may have a surface having a certain inclination relative to the transverse wall of the plug, so as to allow the coupling of the seal and to avoid its axial displacement towards the opening of the plug.
  • the annular projection is placed relative to the axis of the stopper so that, once the seal has been poured into the groove, and when the stopper is screwed onto a container neck, the seal is located opposite the rim of the neck of the container.
  • the projection must meet a number of criteria
  • the projection must have a sufficiently high axial height to allow defining a groove and to contain the seal in this groove.
  • the seal is compressed so that it locally has a thickness less than the axial height of the projection, and remains held in the groove;
  • the position of the projection must be precise.
  • the projection must not have a too small diameter, this being able to harm a good maintenance of the joint in the groove.
  • the projection should not have too large a diameter, because it would risk in this case being located opposite the rim of the container neck, which would affect the seal.
  • screwing the plug onto the neck could damage the projection.
  • a seal is poured into the bottom of the plug and then die, so as to match the shape of the internal face of the transverse wall and the projection.
  • the seal therefore has an annular boss at the level of the projection.
  • the seal is intended to come into contact with the rim of a container neck at the level of this boss. Consequently, the projection is placed so as to be opposite the rim of a container neck when the stopper is associated with said neck.
  • stamping of the seal must also be carried out in a precise manner, the surface condition of the seal at the level of the projection having to make it possible to guarantee a good seal. This stamping therefore constitutes an additional operation generating additional cost and longer manufacturing times.
  • document GB 2 111 965 it describes a stopper, provided with sealing lips intended to cooperate with the rim of a container neck. When the stopper is placed on the neck, the lips are bent and applied against this rim, so as to ensure the seal.
  • document GB 2 111 965 provides for coating the lips with a thin film of a more flexible material making it possible to improve the contact between the lips and the rim. of the cervix.
  • the flexible material covers the lips, forming a ring at the bottom of the stopper.
  • the ring has a curved surface or a shape that perfectly matches the shape of the projections.
  • the objective of document GB 2 111 965 is to improve the sealing of the plugs provided with sealing lips but devoid of seal. It does not offer an effective solution to the problem of catching a cast joint against the transverse wall of a plug.
  • the object of the invention is to solve the problems posed by the prior art, by providing a plug - associated with a cast joint - in which the functions of attachment of the joint and sealing are dissociated.
  • the invention relates to an assembly comprising:
  • a plug of the type comprising a transverse end wall and a cylindrical skirt comprising, on its internal face a thread intended to cooperate with an external complementary thread of a container neck;
  • the transverse wall of the stopper comprises, on its internal face, at least one projection forming a hooking means for the seal, said projection being coated and covered by the seal, the seal having the shape general of a disc of substantially constant thickness, and the axial height of the projection being less than the thickness of said seal.
  • the projection comprises at least one face inclined at an acute angle relative to the axis of the stopper so that, when the seal is placed in the stopper, at least one area of said seal is included in a attachment zone located axially between the transverse wall and part of said projection.
  • the projection has, in axial section, the shape of at least one trapezium whose small base is located towards the free end of said projection, said trapezium being such that one of the two adjacent angles at the small base is acute.
  • One of the two angles adjacent to the small base is between 40 ° and 80 °, especially close to 60 °.
  • the projection has, in axial section, the shape of at least one trapezium whose large base is located towards the free end of said projection.
  • said trapezium has an axis of symmetry substantially parallel to the axis of the plug.
  • the projection is annular and of axis substantially coincident with the axis of the plug.
  • the plug may comprise two substantially concentric annular projections, with an axis substantially coincident with the axis of the plug, the free ends of the two projections being for example offset axially with respect to each other.
  • the projection may have an axial height less than half or a third of the thickness of the transverse wall of the plug.
  • the invention relates to an assembly on the one hand a plug and a seal, as previously described, and on the other hand a container neck or a container having a neck, the said container being empty or at least partially filled with certain content.
  • the invention relates to a method for producing a plug-seal assembly comprising the following steps:
  • a plug is produced by molding comprising at least one projection
  • a certain volume of material constituting the seal is deposited at the bottom of the cap in liquid or pasty form, so that the material spreads over the internal face of the transverse wall of the plug, coats and covers the projection.
  • FIG. 1 is an axial sectional view of a plug having projections according to a first embodiment, said plug having a seal cast against its transverse wall;
  • FIG. 1 is a view of detail A of Figure 1;
  • FIG. 3 is a partial axial sectional view of a plug having projections according to a variant of a first embodiment
  • FIG. 4 is a view of detail B of Figure 3;
  • FIG. 5 is a partial axial sectional view of a plug having projections according to a second embodiment
  • FIG. 1 represents a plug 1 of axis 2, the plug 1 being for example made of plastic.
  • the plug 1 firstly comprises a transverse end wall 3, substantially discoidal, as well as a cylindrical skirt 4 projecting substantially perpendicular to the transverse wall 3.
  • the cylindrical skirt 4 has, on its outer face 5, notches 6 intended to facilitate the screwing and unscrewing of the plug 1 by a user, and, on its inner face 7, a thread 8 intended to cooperate with the external thread of a container neck, not shown.
  • the plug 1 also comprises an annular tamper-evident band 9, connected to the free end 10 of the cylindrical skirt 4 by frangible bridges 11 or by a line of weaker resistance.
  • the tamper-evident band 9 comprises hooking projections 12, directed towards the axis 2 of the stopper 1, and intended to cooperate with the neck of a container to ensure the maintenance of the tamper-evident band 9 at the neck of the said container when, during the first opening of said container, the bridges 11 are broken.
  • the plug 1 comprises blocking elements 13, extending axially from the free end 10 of the cylindrical skirt 4 towards and inside the tamper-evident band 9, over a length such that the free end 14 of the said blocking element 13 is located, radially, opposite the tamper-evident band 9.
  • the blocking elements 13 are located towards the inside of the plug 1 relative to the tamper-evident band 9. Their role is to guarantee the integrity of the tamper-evident band 9 and the bridges 11 when the cap 1 is mounted on the neck of the container for which it is intended.
  • the plug 1 finally comprises a seal 15, put in place by casting against the transverse wall 3, and which will be described in more detail in the following description.
  • the transverse wall 3 of the plug 1 comprises, on its internal face 16, one or more protrusions 17 forming means for attaching the seal 15, thus preventing the said seal 15 from being detached from the transverse wall 3.
  • the protrusions 17 have come from manufacturing , by molding, with the plug 1. They have a relatively small axial height, in particular less than half, or even a third, of the thickness of the transverse wall 3 of the plug 1. In addition, the width of the projections 17 in section transverse is also reduced.
  • the protrusions 17 are annular, of axis substantially coincident with the axis 2 of the plug 1. We will now describe, with reference to FIGS. 1 to 4, a first embodiment of the projections 17.
  • Figure 4 shows a projection 17 according to the first embodiment, in axial section.
  • the projection 17 has, in axial section, the shape of a trapezoid, or rather of two trapezoids symmetrical with respect to the axis of said projection 17.
  • the large base 18 of the trapezoid is substantially coincident with the transverse wall 3, the small base 19 of the trapezoid constituting the free end of the projection 17.
  • the small base 19 can be of very small length, so that the trapezium is similar to a triangle.
  • a first face 20 of the trapezoid, distinct from the bases 18, 19, and located opposite the axis 2 of the plug 1, is inclined relative to the transverse wall 3 by an obtuse angle ⁇ , for example between 130 ° and 170 °, especially around 150 °.
  • a second face 21 of the trapezoid, opposite the first face 20, is inclined relative to the transverse wall 3 by an acute angle ⁇ , for example between 40 ° and 80 °, in particular close to 60 °.
  • the angle between the transverse wall 3 and the second face 21 of the trapezoid is rounded.
  • the transverse wall 3 of the plug 1 comprises three annular projections 17, substantially concentric, with an axis substantially coincident with the axis 2 of the plug 1.
  • a first annular projection 17 has a radius substantially equal to half the radius of the transverse wall 3.
  • Two additional projections 17, of close radius, are arranged towards the periphery of the transverse wall 3.
  • the transverse wall 3 of the plug 1 comprises three projections 17 annular, substantially concentric, axis substantially coincident with the axis 2 of the plug 1.
  • a first annular projection 17 has a radius substantially equal to half the radius of the transverse wall 3.
  • An additional projection 17 is disposed towards the periphery of the transverse wall 3.
  • the projection 17 has, in axial section, the shape of a trapezoid, or rather of two trapezoids symmetrical with respect to the axis of said projection 17.
  • the small base 22 of the trapezoid is substantially coincident with the transverse wall 3, the large base 23 of the trapezoid constituting the free end of the projection 17.
  • the trapezium has an axis of symmetry 24 substantially parallel to the axis of the plug 1.
  • the faces 25, 26 of the trapezium distinct from the bases 22, 23 are inclined relative to the transverse wall 3 by an acute angle ⁇ , for example between 40 ° and 80 °, in particular close to 60 °.
  • the establishment of the seal 15 is done by depositing a certain volume of material at the bottom of said plug 1. This deposition can be carried out using an extruder or a "hot melt” gun.
  • the seal 15 thus extends substantially over the entire internal face 16 of the transverse wall 3 of the plug 1, and has the shape of a disc, of substantially constant thickness over its entire surface.
  • the joint can then be pressed against the transverse wall using a tool, leaving an imprint on the joint 15 as illustrated in FIG. 2.
  • the volume of material deposited is sufficient for the thickness of the seal 15 to be greater than the axial height of the projections 17, even after compression.
  • This stamping makes it possible to give the seal 15 a shape perfectly adapted to the shape of the neck of the container with which the cap 1 is intended to be associated, in order to guarantee a very good seal.
  • the stamping allows the projections 17 to penetrate well into the material constituting the seal 15.
  • stamping of the seal 15, corresponding to a preferred embodiment of the invention, is however optional, since it is not essential for the attachment of the seal 15 against the transverse wall 3 of the plug 1 using the projections 17.
  • the outer face of the seal 15 - that is to say the face of the seal 15 opposite the transverse wall 3 - is substantially planar, with the possible exception of the end peripheral zone of the seal 15 (without that this has consequences affecting the sealing).
  • the projections 17 having an axial height less than the thickness of the seal 15, they do not protrude outside the seal 15, but remain coated and contained inside the seal 15. As a result, the projections 17 do not deform not the outer face of the seal 15, the latter having a good quality surface condition, making it possible to guarantee good contact with the rim of the container neck, and therefore good sealing. In addition, since the projections do not protrude outside the seal 15, there is no particular constraint on their position at the level of the interior face 16 of the transverse wall 3 of the plug 1.
  • the process for producing the plug 1 is considerably simplified, and the dimensional requirements of the mold used are considerably reduced.
  • the configuration of the projection 17 is such that there is a zone 27 - called attachment zone - axially comprised between the transverse wall 3 and said projection 17. Part of the material deposited at the bottom of the plug and flowing against the transverse wall 3 is placed in the attachment zone 27.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Cable Accessories (AREA)
  • Branch Pipes, Bends, And The Like (AREA)
  • Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
  • Dowels (AREA)
  • Slide Fasteners (AREA)
  • Seal Device For Vehicle (AREA)

Abstract

The invention concerns a closure cap comprising a terminal transverse wall (3) and a cylindrical skirt (4) including, on its inner surface, a thread designed to co-operate with a complementary outer thread of a container neck. The closure is designed to receive a moulded joint (15) extending substantially on the entire inner surface (16) of the transverse wall (3), over a substantially constant thickness. The transverse wall (3) comprises, on its inner surface (16), at least a projection (17) forming catching means for the joint (15), thereby ensuring retention of the joint (15) against the transverse wall (3). The axial height of the projection (17) is less than the thickness of said joint (15).

Description

Bouchon comprenant des moyens d'accrochage d'un joint coulé Cap comprising means for attaching a cast joint
L'invention concerne un ensemble comprenant un bouchon et un joint mis en place par coulage au fond du bouchon, ainsi qu'un procédé pour la réalisation d'un tel bouchon.The invention relates to an assembly comprising a plug and a seal placed by pouring into the bottom of the plug, as well as a method for producing such a plug.
L'invention se rapporte plus particulièrement aux bouchons en matière plastique comprenant une jupe cylindrique et une paroi transversale d'extrémité, le joint étant coulé contre la dite paroi transversale d'extrémité.The invention relates more particularly to plastic plugs comprising a cylindrical skirt and a transverse end wall, the seal being cast against said transverse end wall.
On connaît déjà de tels bouchons, dans lesquels la mise en place du joint se fait par dépôt d'un certain volume de matière constitutive du joint sur la paroi transversale, à l'aide d'un distributeur.Such plugs are already known, in which the fitting of the seal is done by depositing a certain volume of material constituting the seal on the transverse wall, using a distributor.
La matière déposée est chaude, liquide ou pâteuse, et de ce fait s'étale sur la face interne de la paroi transversale. Le joint est ensuite comprimé contre la paroi transversale à l'aide d'un outil. Il se produit alors un collage physicochimique du joint coulé sur la face interne de la paroi transversale.The deposited material is hot, liquid or pasty, and therefore spreads over the internal face of the transverse wall. The joint is then pressed against the transverse wall using a tool. Physicochemical bonding of the poured joint then occurs on the internal face of the transverse wall.
Dans l'art antérieur, le joint coulé est maintenu contre la paroi transversale uniquement par cette force d'adhésion physico-chimique.In the prior art, the cast joint is held against the transverse wall only by this physical-chemical adhesion force.
Cependant, l'adhérence du joint à la paroi transversale n'est pas optimale. Il arrive en effet que le joint se décolle de la dite paroi, et puisse ainsi s'échapper du bouchon, notamment lors du stockage de l'ensemble bouchon - joint et de son transport en vue du montage sur un col de récipient. L'étanchéité entre le bouchon et le col de récipient sur lequel il est monté ne peut alors plus être assurée.However, the adhesion of the joint to the transverse wall is not optimal. It sometimes happens that the seal comes off from said wall, and can thus escape from the plug, in particular during storage of the plug-seal assembly and its transport for mounting on a container neck. The seal between the cap and the container neck on which it is mounted can no longer be ensured.
Plusieurs solutions ont été envisagées pour résoudre ce problème.Several solutions have been considered to solve this problem.
Le document US 4 697 716 décrit un bouchon présentant une gorge sur la face interne de sa paroi transversale et destiné à recevoir un joint coulé dans cette gorge. La gorge est délimitée par deux parois sensiblement axiales : d'une part la jupe du bouchon et d'autre part une saillie annulaire.Document US 4,697,716 describes a plug having a groove on the internal face of its transverse wall and intended to receive a seal cast in this throat. The groove is delimited by two substantially axial walls: on the one hand the skirt of the plug and on the other hand an annular projection.
La saillie annulaire peut posséder une surface présentant une certaine inclinaison par rapport à la paroi transversale du bouchon, de façon à permettre l'accrochage du joint et à éviter son déplacement axial vers l'ouverture du bouchon.The annular projection may have a surface having a certain inclination relative to the transverse wall of the plug, so as to allow the coupling of the seal and to avoid its axial displacement towards the opening of the plug.
Toutefois, la saillie annulaire est placée par rapport à l'axe du bouchon de manière que, une fois le joint coulé dans la gorge, et lorsque le bouchon est vissé sur un col de récipient, le joint soit situé en regard du rebord du col du récipient.However, the annular projection is placed relative to the axis of the stopper so that, once the seal has been poured into the groove, and when the stopper is screwed onto a container neck, the seal is located opposite the rim of the neck of the container.
De ce fait, la saillie doit répondre à un certain nombre de critèresTherefore, the projection must meet a number of criteria
- d'une part, la saillie doit présenter une hauteur axiale suffisamment importante pour permettre de délimiter une gorge et de contenir le joint dans cette gorge. Lorsque le bouchon est vissé sur le col de récipient, le joint est comprimé de sorte qu'il présente localement une épaisseur inférieure à la hauteur axiale de la saillie, et reste maintenu dans la gorge ;- On the one hand, the projection must have a sufficiently high axial height to allow defining a groove and to contain the seal in this groove. When the cap is screwed onto the container neck, the seal is compressed so that it locally has a thickness less than the axial height of the projection, and remains held in the groove;
d'autre part, la position de la saillie doit être précise. En particulier, la saillie ne doit pas présenter un diamètre trop faible, ceci pouvant nuire à un bon maintien du joint dans la gorge. A l'inverse, la saillie ne doit pas présenter un diamètre trop important, car elle risquerait de ce cas de se trouver en regard du rebord du col du récipient, ce qui nuirait à l'étanchéité. De plus, compte tenu de la hauteur axiale de la saillie, le vissage du bouchon sur le col pourrait endommager la saillie.on the other hand, the position of the projection must be precise. In particular, the projection must not have a too small diameter, this being able to harm a good maintenance of the joint in the groove. Conversely, the projection should not have too large a diameter, because it would risk in this case being located opposite the rim of the container neck, which would affect the seal. In addition, given the axial height of the projection, screwing the plug onto the neck could damage the projection.
Ainsi, dans le document US 4 697 716, la saillie sert à la fois à l'accrochage du joint et à l'étanchéité du bouchon. De ce fait, les caractéristiques dimensionnelles de la saillie doivent être précises, le moulage du bouchon étant par conséquent rendu plus complexe. Le document GB 1 224 669 décrit un bouchon comportant une saillie annulaire sur la face interne de sa paroi transversale, la saillie étant destinée à servir de moyen d'accrochage d'un joint au fond du bouchon.Thus, in document US 4,697,716, the projection is used both for attaching the seal and for sealing the plug. As a result, the dimensional characteristics of the projection must be precise, the molding of the plug being consequently made more complex. Document GB 1 224 669 describes a stopper having an annular projection on the internal face of its transverse wall, the projection being intended to serve as a means for attaching a seal to the bottom of the stopper.
Un joint est coulé au fond du bouchon puis matrice, de sorte à épouser la forme de la face interne de la paroi transversale et de la saillie. Le joint présente de ce fait un bossage annulaire au niveau de la saillie.A seal is poured into the bottom of the plug and then die, so as to match the shape of the internal face of the transverse wall and the projection. The seal therefore has an annular boss at the level of the projection.
Le joint est destiné à venir en contact avec le rebord d'un col de récipient au niveau de ce bossage. Par conséquent, la saillie est placée de sorte à être en regard du rebord d'un col de récipient lorsque le bouchon est associé au dit col.The seal is intended to come into contact with the rim of a container neck at the level of this boss. Consequently, the projection is placed so as to be opposite the rim of a container neck when the stopper is associated with said neck.
De façon similaire au document US 4 697 716, la fabrication du bouchon décrit dans le document GB 1 224 669 est relativement complexe. En effet, les saillies doivent être positionnées et moulées de façon très précises, puisqu'elles jouent un rôle fondamental pour l'étanchéité.Similarly to document US 4,697,716, the manufacture of the stopper described in document GB 1,224,669 is relatively complex. In fact, the projections must be positioned and molded very precisely, since they play a fundamental role in sealing.
De plus, le matriçage du joint doit également être effectué de façon précise, l'état de surface du joint au niveau de la saillie devant permettre de garantir une bonne étanchéité. Ce matriçage constitue donc une opération supplémentaire générant un surcoût et des temps de fabrication plus importants.In addition, the stamping of the seal must also be carried out in a precise manner, the surface condition of the seal at the level of the projection having to make it possible to guarantee a good seal. This stamping therefore constitutes an additional operation generating additional cost and longer manufacturing times.
Quant au document GB 2 111 965, il décrit un bouchon, muni de lèvres d'étanchéité destinées à coopérer avec le rebord d'un col de récipient. Lorsque le bouchon est placé sur le col, les lèvres sont fléchies et appliquées contre ce rebord, de façon à assurer l'étanchéité. Afin de permettre d'assurer une bonne étanchéité, malgré la rigidité des lèvres, le document GB 2 111 965 prévoit de revêtir les lèvres d'un mince film d'une matière plus souple permettant d'améliorer le contact entre les lèvres et le rebord du col.As for document GB 2 111 965, it describes a stopper, provided with sealing lips intended to cooperate with the rim of a container neck. When the stopper is placed on the neck, the lips are bent and applied against this rim, so as to ensure the seal. In order to ensure good sealing, despite the rigidity of the lips, document GB 2 111 965 provides for coating the lips with a thin film of a more flexible material making it possible to improve the contact between the lips and the rim. of the cervix.
La matière souple recouvre les lèvres en formant un anneau au fond du bouchon. L'anneau présente une surface bombée ou une forme épousant parfaitement la forme des saillies. Toutefois, l'objectif du document GB 2 111 965 est d'améliorer l'étanchéité des bouchons munis de lèvres d'étanchéité mais dépourvus de joint. Il ne propose pas de solution efficace au problème d'accrochage d'un joint coulé contre la paroi transversale d'un bouchon. Le but de l'invention est de résoudre les problèmes posés par l'art antérieur, en fournissant un bouchon - associé à un joint coulé - dans lequel les fonctions d'accrochage du joint et d'étanchéité sont dissociées.The flexible material covers the lips, forming a ring at the bottom of the stopper. The ring has a curved surface or a shape that perfectly matches the shape of the projections. However, the objective of document GB 2 111 965 is to improve the sealing of the plugs provided with sealing lips but devoid of seal. It does not offer an effective solution to the problem of catching a cast joint against the transverse wall of a plug. The object of the invention is to solve the problems posed by the prior art, by providing a plug - associated with a cast joint - in which the functions of attachment of the joint and sealing are dissociated.
A cet effet, et selon un premier aspect, l'invention concerne un ensemble comprenant :To this end, and according to a first aspect, the invention relates to an assembly comprising:
- un bouchon du type comportant une paroi transversale d'extrémité et une jupe cylindrique comprenant, sur sa face interne un filetage destiné à coopérer avec un filetage complémentaire externe d'un col de récipient ;- A plug of the type comprising a transverse end wall and a cylindrical skirt comprising, on its internal face a thread intended to cooperate with an external complementary thread of a container neck;
- et un joint placé contre la face interne de la paroi transversale du bouchon, le joint ayant été mis en place par coulage et s'étendant sensiblement sur toute la face interne de la dite paroi transversale.- And a seal placed against the internal face of the transverse wall of the plug, the seal having been put in place by pouring and extending substantially over the entire internal face of said transverse wall.
Selon une définition générale de l'invention, la paroi transversale du bouchon comprend, sur sa face interne, au moins une saillie formant moyen d'accrochage pour le joint, la dite saillie étant enrobée et recouverte par le joint, le joint présentant la forme générale d'un disque d'épaisseur sensiblement constante, et la hauteur axiale de la saillie étant inférieure à l'épaisseur du dit joint.According to a general definition of the invention, the transverse wall of the stopper comprises, on its internal face, at least one projection forming a hooking means for the seal, said projection being coated and covered by the seal, the seal having the shape general of a disc of substantially constant thickness, and the axial height of the projection being less than the thickness of said seal.
Ceci permet notamment de s'affranchir des contraintes de positionnement précis des saillies d'accrochage, et donc de réaliser un bouchon selon un procédé plus simple et moins contraignant.This in particular makes it possible to overcome the constraints of precise positioning of the attachment projections, and therefore to produce a plug according to a simpler and less restrictive process.
Selon l'invention, la saillie comprend au moins une face inclinée d'un angle aigu par rapport à l'axe du bouchon de sorte que, lorsque le joint est placé dans le bouchon, au moins une zone du dit joint est comprise dans une zone d'accrochage située, axialement, entre la paroi transversale et une partie de la dite saillie. Selon une première réalisation, la saillie présente, en coupe axiale, la forme d'au moins un trapèze dont la petite base est située vers l'extrémité libre de la dite saillie, le dit trapèze étant tel que l'un des deux angles adjacents à la petite base est aigu. L'un des deux angles adjacents à la petite base est compris entre 40° et 80°, notamment voisin de 60°.According to the invention, the projection comprises at least one face inclined at an acute angle relative to the axis of the stopper so that, when the seal is placed in the stopper, at least one area of said seal is included in a attachment zone located axially between the transverse wall and part of said projection. According to a first embodiment, the projection has, in axial section, the shape of at least one trapezium whose small base is located towards the free end of said projection, said trapezium being such that one of the two adjacent angles at the small base is acute. One of the two angles adjacent to the small base is between 40 ° and 80 °, especially close to 60 °.
Selon une deuxième réalisation, la saillie présente, en coupe axiale, la forme d'au moins un trapèze dont la grande base est située vers l'extrémité libre de la dite saillie. Par exemple, le dit trapèze possède un axe de symétrie sensiblement parallèle à l'axe du bouchon.According to a second embodiment, the projection has, in axial section, the shape of at least one trapezium whose large base is located towards the free end of said projection. For example, said trapezium has an axis of symmetry substantially parallel to the axis of the plug.
Selon une réalisation possible, la saillie est annulaire et d'axe sensiblement confondu avec l'axe du bouchon.According to one possible embodiment, the projection is annular and of axis substantially coincident with the axis of the plug.
Le bouchon peut comprendre deux saillies annulaires sensiblement concentriques, d'axe sensiblement confondu avec l'axe du bouchon, les extrémités libres des deux saillies étant par exemple décalées axialement l'une par rapport à l'autre.The plug may comprise two substantially concentric annular projections, with an axis substantially coincident with the axis of the plug, the free ends of the two projections being for example offset axially with respect to each other.
Selon d'autres caractéristiques, la saillie peut présenter une hauteur axiale inférieure à la moitié ou au tiers de l'épaisseur de la paroi transversale du bouchon.According to other characteristics, the projection may have an axial height less than half or a third of the thickness of the transverse wall of the plug.
Selon un deuxième aspect, l'invention concerne un ensemble d'une part un bouchon et un joint, tel que précédemment décrits, et d'autre part un col de récipient ou un récipient ayant un col, le dit récipient étant vide ou au moins partiellement rempli d'un certain contenu.According to a second aspect, the invention relates to an assembly on the one hand a plug and a seal, as previously described, and on the other hand a container neck or a container having a neck, the said container being empty or at least partially filled with certain content.
Enfin, selon un troisième aspect, l'invention concerne un procédé de réalisation d'un ensemble bouchon -joint comprenant les étapes suivantes :Finally, according to a third aspect, the invention relates to a method for producing a plug-seal assembly comprising the following steps:
- on réalise par moulage un bouchon comprenant au moins une saillie ;- A plug is produced by molding comprising at least one projection;
- on dépose au fond du bouchon un certain volume de matière constitutive du joint sous forme liquide ou pâteuse, de sorte que la matière s'étale sur la face interne de la paroi transversale du bouchon, enrobe et recouvre la saillie.- a certain volume of material constituting the seal is deposited at the bottom of the cap in liquid or pasty form, so that the material spreads over the internal face of the transverse wall of the plug, coats and covers the projection.
Une fois la matière constitutive du joint déposée au fond du bouchon, on peut comprimer la dite matière contre la paroi transversale du bouchon.Once the material constituting the seal deposited at the bottom of the plug, said material can be compressed against the transverse wall of the plug.
Les autres caractéristiques de l'invention résultent de la description qui suit de modes de réalisation, description effectuée en référence aux figures annexées dans lesquelles :The other characteristics of the invention result from the following description of embodiments, description made with reference to the appended figures in which:
- la figure 1 est une vue en coupe axiale d'un bouchon présentant des saillies selon un premier mode de réalisation, le dit bouchon comportant un joint coulé contre sa paroi transversale ;- Figure 1 is an axial sectional view of a plug having projections according to a first embodiment, said plug having a seal cast against its transverse wall;
- la figure 2 est une vue du détail A de la figure 1 ;- Figure 2 is a view of detail A of Figure 1;
- la figure 3 est une vue en coupe axiale partielle d'un bouchon présentant des saillies selon une variante d'un premier mode de réalisation ;- Figure 3 is a partial axial sectional view of a plug having projections according to a variant of a first embodiment;
- la figure 4 est une vue du détail B de la figure 3 ;- Figure 4 is a view of detail B of Figure 3;
- la figure 5 est une vue en coupe axiale partielle d'un bouchon présentant des saillies selon un deuxième mode de réalisation ;- Figure 5 is a partial axial sectional view of a plug having projections according to a second embodiment;
On se réfère tout d'abord à la figure 1 qui représente un bouchon 1 d'axe 2, le bouchon 1 étant par exemple réalisé en matière plastique.First of all, reference is made to FIG. 1 which represents a plug 1 of axis 2, the plug 1 being for example made of plastic.
Le bouchon 1 comprend tout d'abord une paroi transversale d'extrémité 3, sensiblement discoïdale, ainsi qu'une jupe cylindrique 4 faisant saillie sensiblement perpendiculairement à la paroi transversale 3.The plug 1 firstly comprises a transverse end wall 3, substantially discoidal, as well as a cylindrical skirt 4 projecting substantially perpendicular to the transverse wall 3.
La jupe cylindrique 4 comporte, sur sa face extérieure 5, des crans 6 destinés à faciliter le vissage et le dévissage du bouchon 1 par un utilisateur, et, sur sa face intérieure 7, un filetage 8 destiné à coopérer avec le filetage externe d'un col de récipient non représenté.The cylindrical skirt 4 has, on its outer face 5, notches 6 intended to facilitate the screwing and unscrewing of the plug 1 by a user, and, on its inner face 7, a thread 8 intended to cooperate with the external thread of a container neck, not shown.
Le bouchon 1 comprend également une bande d'inviolabilité 9 annulaire, reliée à l'extrémité libre 10 de la jupe cylindrique 4 par des ponts frangibles 11 ou par une ligne de plus faible résistance. La bande d'inviolabilité 9 comporte des saillies d'accrochage 12, dirigées vers l'axe 2 du bouchon 1 , et destinées à coopérer avec le col d'un récipient pour assurer le maintien de la bande d'inviolabilité 9 au col du dit récipient lorsque, lors de la première ouverture du dit récipient, les ponts 11 sont rompus.The plug 1 also comprises an annular tamper-evident band 9, connected to the free end 10 of the cylindrical skirt 4 by frangible bridges 11 or by a line of weaker resistance. The tamper-evident band 9 comprises hooking projections 12, directed towards the axis 2 of the stopper 1, and intended to cooperate with the neck of a container to ensure the maintenance of the tamper-evident band 9 at the neck of the said container when, during the first opening of said container, the bridges 11 are broken.
Le bouchon 1 comporte des éléments de blocage 13, s'étendant axialement depuis l'extrémité libre 10 de la jupe cylindrique 4 vers et à l'intérieur de la bande d'inviolabilité 9, sur une longueur telle que l'extrémité libre 14 du dit élément de blocage 13 se situe, radialement, en regard de la bande d'inviolabilité 9. Les éléments de blocage 13 sont situés vers l'intérieur du bouchon 1 par rapport à la bande d'inviolabilité 9. Leur rôle est de garantir l'intégrité de la bande d'inviolabilité 9 et des ponts 11 lors du montage du bouchon 1 sur le col du récipient auquel il est destiné.The plug 1 comprises blocking elements 13, extending axially from the free end 10 of the cylindrical skirt 4 towards and inside the tamper-evident band 9, over a length such that the free end 14 of the said blocking element 13 is located, radially, opposite the tamper-evident band 9. The blocking elements 13 are located towards the inside of the plug 1 relative to the tamper-evident band 9. Their role is to guarantee the integrity of the tamper-evident band 9 and the bridges 11 when the cap 1 is mounted on the neck of the container for which it is intended.
Le bouchon 1 comporte enfin un joint d'étanchéité 15, mis en place par coulage contre la paroi transversale 3, et qui sera décrit plus en détail dans la suite de la description.The plug 1 finally comprises a seal 15, put in place by casting against the transverse wall 3, and which will be described in more detail in the following description.
La paroi transversale 3 du bouchon 1 comporte, sur sa face interne 16, une ou plusieurs saillies 17 formant moyen d'accrochage du joint 15, empêchant ainsi la désolidarisation du dit joint 15 de la paroi transversale 3. Les saillies 17 sont venues de fabrication, par moulage, avec le bouchon 1. Elles présentent une hauteur axiale relativement faible, notamment inférieure à la moitié, voire au tiers, de l'épaisseur de la paroi transversale 3 du bouchon 1. De plus, la largeur des saillies 17 en coupe transversale est également réduite.The transverse wall 3 of the plug 1 comprises, on its internal face 16, one or more protrusions 17 forming means for attaching the seal 15, thus preventing the said seal 15 from being detached from the transverse wall 3. The protrusions 17 have come from manufacturing , by molding, with the plug 1. They have a relatively small axial height, in particular less than half, or even a third, of the thickness of the transverse wall 3 of the plug 1. In addition, the width of the projections 17 in section transverse is also reduced.
Les saillies 17 sont annulaires, d'axe sensiblement confondu avec l'axe 2 du bouchon 1. On décrit à présent, en référence aux figures 1 à 4, un premier mode de réalisation des saillies 17.The protrusions 17 are annular, of axis substantially coincident with the axis 2 of the plug 1. We will now describe, with reference to FIGS. 1 to 4, a first embodiment of the projections 17.
La figure 4 représente une saillie 17 conforme au premier mode de réalisation, en coupe axiale.Figure 4 shows a projection 17 according to the first embodiment, in axial section.
La saillie 17 présente, en coupe axiale, la forme d'un trapèze, ou plutôt de deux trapèzes symétriques par rapport à l'axe de la dite saillie 17.The projection 17 has, in axial section, the shape of a trapezoid, or rather of two trapezoids symmetrical with respect to the axis of said projection 17.
La grande base 18 du trapèze est sensiblement confondue avec la paroi transversale 3, la petite base 19 du trapèze constituant l'extrémité libre de la saillie 17. La petite base 19 peut être de longueur très petite, de sorte que le trapèze s'apparente à un triangle.The large base 18 of the trapezoid is substantially coincident with the transverse wall 3, the small base 19 of the trapezoid constituting the free end of the projection 17. The small base 19 can be of very small length, so that the trapezium is similar to a triangle.
Une première face 20 du trapèze, distincte des bases 18, 19, et située en regard de l'axe 2 du bouchon 1 , est inclinée par rapport à la paroi transversale 3 d'un angle α obtus, par exemple compris entre 130° et 170°, notamment voisin de 150°. Une deuxième face 21 du trapèze, opposée à la première face 20, est inclinée par rapport à la paroi transversale 3 d'un angle β aigu, par exemple compris entre 40° et 80°, notamment voisin de 60°.A first face 20 of the trapezoid, distinct from the bases 18, 19, and located opposite the axis 2 of the plug 1, is inclined relative to the transverse wall 3 by an obtuse angle α, for example between 130 ° and 170 °, especially around 150 °. A second face 21 of the trapezoid, opposite the first face 20, is inclined relative to the transverse wall 3 by an acute angle β, for example between 40 ° and 80 °, in particular close to 60 °.
L'angle entre la paroi transversale 3 et la deuxième face 21 du trapèze est arrondi.The angle between the transverse wall 3 and the second face 21 of the trapezoid is rounded.
Selon une première variante de ce premier mode de réalisation, illustrée sur les figures 1 et 2, la paroi transversale 3 du bouchon 1 comprend trois saillies 17 annulaires, sensiblement concentriques, d'axe sensiblement confondu avec l'axe 2 du bouchon 1. Une première saillie annulaire 17 possède un rayon sensiblement égal à la moitié du rayon de la paroi transversale 3. Deux saillies 17 supplémentaires, de rayons proches, sont disposées vers la périphérie de la paroi transversale 3.According to a first variant of this first embodiment, illustrated in FIGS. 1 and 2, the transverse wall 3 of the plug 1 comprises three annular projections 17, substantially concentric, with an axis substantially coincident with the axis 2 of the plug 1. A first annular projection 17 has a radius substantially equal to half the radius of the transverse wall 3. Two additional projections 17, of close radius, are arranged towards the periphery of the transverse wall 3.
Selon une deuxième variante de ce premier mode de réalisation, illustrée sur la figure 3, la paroi transversale 3 du bouchon 1 comprend trois saillies 17 annulaires, sensiblement concentriques, d'axe sensiblement confondu avec l'axe 2 du bouchon 1. Une première saillie annulaire 17 possède un rayon sensiblement égal à la moitié du rayon de la paroi transversale 3. Une saillie 17 supplémentaire est disposée vers la périphérie de la paroi transversale 3.According to a second variant of this first embodiment, illustrated in FIG. 3, the transverse wall 3 of the plug 1 comprises three projections 17 annular, substantially concentric, axis substantially coincident with the axis 2 of the plug 1. A first annular projection 17 has a radius substantially equal to half the radius of the transverse wall 3. An additional projection 17 is disposed towards the periphery of the transverse wall 3.
On décrit maintenant, en référence à la figure 5, un deuxième mode de réalisation des saillies 17.A second embodiment of the projections 17 will now be described, with reference to FIG. 5.
La saillie 17 présente, en coupe axiale, la forme d'un trapèze, ou plutôt de deux trapèzes symétriques par rapport à l'axe de la dite saillie 17.The projection 17 has, in axial section, the shape of a trapezoid, or rather of two trapezoids symmetrical with respect to the axis of said projection 17.
La petite base 22 du trapèze est sensiblement confondue avec la paroi transversale 3, la grande base 23 du trapèze constituant l'extrémité libre de la saillie 17. Le trapèze possède un axe de symétrie 24 sensiblement parallèle à l'axe du bouchon 1.The small base 22 of the trapezoid is substantially coincident with the transverse wall 3, the large base 23 of the trapezoid constituting the free end of the projection 17. The trapezium has an axis of symmetry 24 substantially parallel to the axis of the plug 1.
Les faces 25, 26 du trapèze distinctes des bases 22, 23 sont inclinées par rapport à la paroi transversale 3 d'un angle γ aigu, par exemple compris entre 40° et 80°, notamment voisin de 60°.The faces 25, 26 of the trapezium distinct from the bases 22, 23 are inclined relative to the transverse wall 3 by an acute angle γ, for example between 40 ° and 80 °, in particular close to 60 °.
La mise en place du joint 15 se fait par dépôt d'un certain volume de matière au fond du dit bouchon 1. Ce dépôt peut être effectué à partir d'une extrudeuse ou d'un pistolet à « hot melt ».The establishment of the seal 15 is done by depositing a certain volume of material at the bottom of said plug 1. This deposition can be carried out using an extruder or a "hot melt" gun.
La matière constitutive du joint 15, chaude et liquide, ou du moins pâteuse, s'étale sur la face interne 16 de la paroi transversale 3, s'écoule jusqu'aux saillies 17, les enrobe et les recouvre.The constituent material of the seal 15, hot and liquid, or at least pasty, spreads over the internal face 16 of the transverse wall 3, flows to the projections 17, coats and covers them.
Le joint 15 s'étend ainsi sensiblement sur toute la face interne 16 de la paroi transversale 3 du bouchon 1 , et présente la forme d'un disque, d'épaisseur sensiblement constante sur toute sa surface.The seal 15 thus extends substantially over the entire internal face 16 of the transverse wall 3 of the plug 1, and has the shape of a disc, of substantially constant thickness over its entire surface.
Le joint peut ensuite être comprimé contre la paroi transversale à l'aide d'un outil, laissant sur le joint 15 une empreinte comme illustré sur la figure 2. Le volume de matière déposé est suffisant pour que l'épaisseur du joint 15 soit supérieure à la hauteur axiale des saillies 17, même après compression. Ce matriçage permet de donner au joint 15 une forme parfaitement adaptée à la forme du col du récipient auquel le bouchon 1 est destiné à être associé, afin de garantir une très bonne étanchéité. De plus, le matriçage permet de bien faire pénétrer les saillies 17 dans la matière constitutive du joint 15.The joint can then be pressed against the transverse wall using a tool, leaving an imprint on the joint 15 as illustrated in FIG. 2. The volume of material deposited is sufficient for the thickness of the seal 15 to be greater than the axial height of the projections 17, even after compression. This stamping makes it possible to give the seal 15 a shape perfectly adapted to the shape of the neck of the container with which the cap 1 is intended to be associated, in order to guarantee a very good seal. In addition, the stamping allows the projections 17 to penetrate well into the material constituting the seal 15.
Le matriçage du joint 15, correspondant à un mode de réalisation préféré de l'invention, est toutefois optionnel, puisqu'il n'est pas indispensable à l'accrochage du joint 15 contre la paroi transversale 3 du bouchon 1 à l'aide des saillies 17.The stamping of the seal 15, corresponding to a preferred embodiment of the invention, is however optional, since it is not essential for the attachment of the seal 15 against the transverse wall 3 of the plug 1 using the projections 17.
Avec ou sans matriçage, la face extérieure du joint 15 - c'est-à-dire la face du joint 15 opposée à la paroi transversale 3 - est sensiblement plane, à l'exception éventuellement de la zone extrême périphérique du joint 15 (sans que ceci ait des conséquences nuisant à l'étanchéité).With or without stamping, the outer face of the seal 15 - that is to say the face of the seal 15 opposite the transverse wall 3 - is substantially planar, with the possible exception of the end peripheral zone of the seal 15 (without that this has consequences affecting the sealing).
Les saillies 17 ayant une hauteur axiale inférieure à l'épaisseur du joint 15, elles ne dépassent pas à l'extérieur du joint 15, mais restent enrobées et contenues à l'intérieur du joint 15. De ce fait, les saillies 17 ne déforment pas la face extérieure du joint 15, celle-ci présentant un état de surface de bonne qualité, permettant de garantir un bon contact avec le rebord du col de récipient, et donc une bonne étanchéité. De plus, les saillies ne dépassant pas à l'extérieur du joint 15, il n'existe aucune contrainte particulière sur leur position au niveau de la face intérieure 16 de la paroi transversale 3 du bouchon 1.The projections 17 having an axial height less than the thickness of the seal 15, they do not protrude outside the seal 15, but remain coated and contained inside the seal 15. As a result, the projections 17 do not deform not the outer face of the seal 15, the latter having a good quality surface condition, making it possible to guarantee good contact with the rim of the container neck, and therefore good sealing. In addition, since the projections do not protrude outside the seal 15, there is no particular constraint on their position at the level of the interior face 16 of the transverse wall 3 of the plug 1.
Le procédé de réalisation du bouchon 1 s'en trouve considérablement simplifié, et les exigences dimensionnelles du moule utilisé considérablement réduites.The process for producing the plug 1 is considerably simplified, and the dimensional requirements of the mold used are considerably reduced.
La configuration de la saillie 17 est telle qu'il existe une zone 27 - dite zone d'accrochage - comprise axialement entre la paroi transversale 3 et la dite saillie 17. Une partie de la matière déposée au fond du bouchon et s'écoulant contre la paroi transversale 3 vient se placer dans la zone d'accrochage 27. Ainsi, en plus du collage physico-chimique du joint 15 coulé sur la face interne 16 de la paroi transversale 3, il existe, du fait de la présence des saillies 17, un accrochage mécanique du dit joint 15, une fois solidifié, qui l'empêche de se désolidariser de la dite paroi transversale 3. The configuration of the projection 17 is such that there is a zone 27 - called attachment zone - axially comprised between the transverse wall 3 and said projection 17. Part of the material deposited at the bottom of the plug and flowing against the transverse wall 3 is placed in the attachment zone 27. Thus, in addition to the physicochemical bonding of the joint 15 cast on the internal face 16 of the transverse wall 3, there exists, due to the presence of the projections 17, a mechanical attachment of said joint 15, once solidified, which l 'prevents separation from said transverse wall 3.

Claims

REVENDICATIONS
1. Ensemble comprenant :1. Set including:
- un bouchon (1) du type comportant une paroi transversale d'extrémité (3) et une jupe cylindrique (4) comprenant, sur sa face interne (7), un filetage (8) destiné à coopérer avec un filetage complémentaire externe d'un col de récipient ;- A plug (1) of the type comprising a transverse end wall (3) and a cylindrical skirt (4) comprising, on its internal face (7), a thread (8) intended to cooperate with an external complementary thread of a container neck;
- et un joint (15) placé contre la face interne (16) de la paroi transversale (3) du bouchon (1 ), le joint (15) ayant été mis en place par coulage et s'étendant sensiblement sur toute la face interne (16) de la dite paroi transversale (3) ; la paroi transversale (3) du bouchon (1 ) comprenant, sur sa face interne (16), au moins une saillie (17) formant moyen d'accrochage pour le joint (15), la dite saillie (17) étant enrobée et recouverte par le joint (15), caractérisé en ce que le joint présente la forme générale d'un disque d'épaisseur sensiblement constante, la hauteur axiale de la saillie (17) étant inférieure à l'épaisseur du dit joint (15).- And a seal (15) placed against the internal face (16) of the transverse wall (3) of the plug (1), the seal (15) having been put in place by pouring and extending substantially over the entire internal face (16) of said transverse wall (3); the transverse wall (3) of the plug (1) comprising, on its internal face (16), at least one projection (17) forming attachment means for the seal (15), the said projection (17) being coated and covered by the seal (15), characterized in that the seal has the general shape of a disc of substantially constant thickness, the axial height of the projection (17) being less than the thickness of said seal (15).
2. Ensemble selon la revendication 1 , caractérisé en ce que la saillie (17) comprend au moins une face (21 , 25, 27) inclinée d'un angle (β, γ) aigu par rapport à l'axe (2) du bouchon (1) de sorte que, lorsque le joint (15) est placé dans le bouchon (1 ), au moins une zone du dit joint (15) est comprise dans une zone d'accrochage (27) située, axialement, entre la paroi transversale (3) et une partie de la dite saillie (17).2. Assembly according to claim 1, characterized in that the projection (17) comprises at least one face (21, 25, 27) inclined at an acute angle (β, γ) relative to the axis (2) of the plug (1) so that, when the seal (15) is placed in the plug (1), at least one zone of said seal (15) is included in a hooking zone (27) located, axially, between the transverse wall (3) and part of said projection (17).
3. Ensemble selon la revendication 1 ou 2, caractérisé en ce que la saillie (17) présente, en coupe axiale, la forme d'au moins un trapèze dont la petite base (19) est située vers l'extrémité libre de la dite saillie (17), le dit trapèze étant tel que l'un des deux angles (β) adjacents à la petite base (19) est aigu. 3. An assembly according to claim 1 or 2, characterized in that the projection (17) has, in axial section, the shape of at least one trapezium whose small base (19) is located towards the free end of said projection (17), said trapezium being such that one of the two angles (β) adjacent to the small base (19) is acute.
4. Ensemble selon la revendication 3, caractérisé en ce que l'un des deux angles (β) adjacents à la petite base (19) est compris entre 40° et 80°, notamment voisin de 60°.4. An assembly according to claim 3, characterized in that one of the two angles (β) adjacent to the small base (19) is between 40 ° and 80 °, in particular close to 60 °.
5. Ensemble selon la revendication 1 ou 2, caractérisé en ce que la saillie (17) présente, en coupe axiale, la forme d'au moins un trapèze dont la grande base (23) est située vers l'extrémité libre de la dite saillie (17).5. The assembly of claim 1 or 2, characterized in that the projection (17) has, in axial section, the shape of at least one trapezium whose large base (23) is located towards the free end of said projection (17).
6. Ensemble selon la revendication 5, caractérisé en ce que le dit trapèze possède un axe de symétrie (24) sensiblement parallèle à l'axe (2) du bouchon (1).6. An assembly according to claim 5, characterized in that said trapezium has an axis of symmetry (24) substantially parallel to the axis (2) of the plug (1).
7. Ensemble selon l'une quelconque des revendications 1 à 6, caractérisé en ce que la saillie (17) est annulaire, l'axe de la dite saillie (17) étant sensiblement confondu avec l'axe (2) du bouchon (1).7. An assembly according to any one of claims 1 to 6, characterized in that the projection (17) is annular, the axis of said projection (17) being substantially coincident with the axis (2) of the plug (1 ).
8. Ensemble selon l'une quelconque des revendications 1 à 7, caractérisé en ce qu'il comprend deux saillies (17) annulaires sensiblement concentriques, d'axe sensiblement confondu avec l'axe (2) du bouchon (1).8. An assembly according to any one of claims 1 to 7, characterized in that it comprises two substantially concentric annular projections (17), of axis substantially coincident with the axis (2) of the plug (1).
9. Ensemble selon la revendication 8, caractérisé en ce que les extrémités libres (19) des deux saillies (17) sont décalées axialement l'une par rapport à l'autre.9. An assembly according to claim 8, characterized in that the free ends (19) of the two projections (17) are offset axially with respect to each other.
10. Ensemble selon l'une quelconque des revendications 1 à 9, caractérisé en ce que la saillie (17) présente une hauteur axiale inférieure à la moitié de l'épaisseur de la paroi transversale du bouchon.10. An assembly according to any one of claims 1 to 9, characterized in that the projection (17) has an axial height less than half the thickness of the transverse wall of the plug.
11. Ensemble selon l'une quelconque des revendications 1 à 10, caractérisé en ce que la saillie (17) présente une hauteur axiale inférieure au tiers de l'épaisseur de la paroi transversale du bouchon.11. An assembly according to any one of claims 1 to 10, characterized in that the projection (17) has an axial height less than a third of the thickness of the transverse wall of the plug.
12. Ensemble comprenant d'une part un bouchon (1 ) et un joint (15) selon l'une quelconque des revendications 1 à 11 , et d'autre part un col de récipient ou un récipient ayant un col, le dit récipient étant vide ou au moins partiellement rempli d'un certain contenu.12. An assembly comprising on the one hand a plug (1) and a seal (15) according to any one of claims 1 to 11, and on the other hand a container neck or a container having a neck, said container being empty or at least partially filled with a certain content.
13. Procédé de réalisation d'un ensemble bouchon (1) - joint (15) selon l'une quelconque des revendications 1 à 11 , caractérisé en ce qu'il comprend les étapes suivantes :13. Method for producing a plug (1) - seal (15) assembly according to any one of claims 1 to 11, characterized in that it comprises the following steps:
- on réalise par moulage un bouchon (1 ) comprenant au moins une saillie (17) ;- A plug (1) is produced by molding comprising at least one projection (17);
- on dépose au fond du bouchon (1) un certain volume de matière constitutive du joint (15) sous forme liquide ou pâteuse, de sorte que la matière s'étale sur la face interne (16) de la paroi transversale (3) du bouchon (1), enrobe et recouvre la saillie (17).- A certain volume of material constituting the seal (15) is deposited at the bottom of the plug (1) in liquid or pasty form, so that the material spreads over the internal face (16) of the transverse wall (3) of the plug (1), coats and covers the projection (17).
14. Procédé de réalisation d'un ensemble bouchon (1 ) - joint (15) selon la revendication 13, caractérisé en ce que, une fois la matière constitutive du joint (15) déposée au fond du bouchon (1), on comprime la dite matière contre la paroi transversale (3) du bouchon (1). 14. Method for producing a plug (1) - seal (15) assembly according to claim 13, characterized in that, once the material constituting the seal (15) deposited at the bottom of the plug (1), the said material against the transverse wall (3) of the plug (1).
EP02706854A 2001-02-15 2002-02-13 Closure cap comprising means for securing a moulded joint Expired - Lifetime EP1360118B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0102084A FR2820722B1 (en) 2001-02-15 2001-02-15 PLUG COMPRISING MEANS FOR HANGING A CAST JOINT
FR0102084 2001-02-15
PCT/FR2002/000553 WO2002064440A1 (en) 2001-02-15 2002-02-13 Closure cap comprising means for securing a moulded joint

Publications (2)

Publication Number Publication Date
EP1360118A1 true EP1360118A1 (en) 2003-11-12
EP1360118B1 EP1360118B1 (en) 2005-09-28

Family

ID=8860068

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02706854A Expired - Lifetime EP1360118B1 (en) 2001-02-15 2002-02-13 Closure cap comprising means for securing a moulded joint

Country Status (7)

Country Link
EP (1) EP1360118B1 (en)
AT (1) ATE305418T1 (en)
DE (1) DE60206360T2 (en)
ES (1) ES2250621T3 (en)
FR (1) FR2820722B1 (en)
HU (1) HUP0303032A3 (en)
WO (1) WO2002064440A1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1224669A (en) * 1967-09-06 1971-03-10 Armstrong Cork Co Container closure having a moulded-in liner
NL8204885A (en) * 1981-12-24 1983-07-18 Anchor Hocking Corp LINELESS VACUUM CLOSURE OF PLASTIC.
US4697716A (en) * 1982-07-06 1987-10-06 Owens-Illinois, Inc. Closures with cast sealing gasket

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO02064440A1 *

Also Published As

Publication number Publication date
ES2250621T3 (en) 2006-04-16
DE60206360T2 (en) 2006-06-22
ATE305418T1 (en) 2005-10-15
HUP0303032A3 (en) 2004-04-28
FR2820722A1 (en) 2002-08-16
EP1360118B1 (en) 2005-09-28
HUP0303032A2 (en) 2003-12-29
DE60206360D1 (en) 2005-11-03
FR2820722B1 (en) 2003-07-25
WO2002064440A1 (en) 2002-08-22

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