EP0611356B1 - Tube container for paste comprising a refilling device locked by a screw cap - Google Patents

Tube container for paste comprising a refilling device locked by a screw cap Download PDF

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Publication number
EP0611356B1
EP0611356B1 EP93900253A EP93900253A EP0611356B1 EP 0611356 B1 EP0611356 B1 EP 0611356B1 EP 93900253 A EP93900253 A EP 93900253A EP 93900253 A EP93900253 A EP 93900253A EP 0611356 B1 EP0611356 B1 EP 0611356B1
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EP
European Patent Office
Prior art keywords
tube
plug
paste
refillable
filling
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Expired - Lifetime
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EP93900253A
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German (de)
French (fr)
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EP0611356A1 (en
Inventor
Jacques Benarrouch
Samvel Ovakimian
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Individual
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Individual
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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
    • B65D35/00—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor
    • B65D35/44—Closures
    • 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
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
    • B65D1/06—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents with closable apertures at bottom
    • 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
    • B65D35/00—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor
    • B65D35/02—Body construction
    • B65D35/10—Body construction made by uniting or interconnecting two or more components

Definitions

  • Dough container tube comprising a reloading device locked by a screw cap.
  • the invention relates to a device for making rechargeable a tube used for packaging and dispensing of pastes such as toothpaste.
  • tubes intended for the packaging of pasta are well known; the tubes are essentially single-use products made up of a thin and flexible tube, either metallic or plastic; one end of the tube has a narrowing with a neck on which comes to adjust a plug which is generally screwed; the other end of the tube is first used to fill it with the dough to be packaged, then it is closed by crimping or welding.
  • the object of the present invention relates to a device allowing the reopening and reclosing of this tube with a wide opening, so that, when it is empty or insufficiently filled, it is possible to put dough back into it; indeed, if one wants to use a non-standard tube for single use (element of a compact toilet bag for example), there immediately arises a problem of restocking which is almost impossible to solve; hence the need to offer buyers toilet bags containing tubes that they can fill themselves and reload from the standard tubes they usually use; this concept of refillable tube helps to limit the consumption of packaging material for everyday products.
  • the concept of the rechargeable tube has already existed for several years; the tube is generally composed of a flexible plastic tube capable of resuming its initial shape, if possible without wrinkling, when the tube having been emptied, it is refilled; but the solutions used to date have drawbacks which it is advantageous to eliminate in order to simplify their implementation.
  • the known systems there is first a mechanical locking clamp of a tube whose bottom has been previously folded back on itself; this very simple system has the disadvantage of requiring a certain skill to put the clamp in place and it is an operation which is difficult to mechanize for the manufacturer of the tube who must put it in place first.
  • CH-A-230000 describes a refillable container tube according to the preamble of claim 1. More specifically, CH-A-230000 describes an oil burette refillable by a neck like filling a bottle, but which is not suitable for reloading with a paste because there immediately forms a plug of paste which sticks to the neck preventing further filling by resistance to compression of the trapped air.
  • an object of the present invention is to provide a device making it possible to place, at the filling end of the tube, a plug which is correctly lockable and easy to handle, while ensuring the reopening and reclosing of this tube with a wide opening, so that, when it is empty or insufficiently filled, dough can be put back into it.
  • this object is achieved by a paste container tube having the characteristics of the characterizing part of claim 1.
  • the female thread of one of the ends of the tube forms part of a shaped end piece substantially annular, which is inserted into the end of the tube and which is fixed to the filling end of the tube by friction welding.
  • Fig. 1 shows a dough container tube with the dispensing orifice facing downwards and the reloading orifice, in exploded view, to see the interior of the tube when the plug (4) is screwed in place.
  • Fig. 2 shows, in partially exploded view, the part of the tube intended for its recharging; this tube can cooperate with the stopper according to the invention of FIG. 3.
  • Fig. 3 shows an exploded view of the closure plug of the recharging orifice modified according to a variant of the invention to also serve as a product distribution orifice.
  • Fig.4 shows the part of the tube, intended for its recharging, with the annular end piece according to the invention, into which the plug (4) of Fig.1 is screwed, when it is fixed by friction welding before it is placed in the tube.
  • Fig.5 shows the part of the tube, intended for its recharging, with the annular end piece according to an embodiment not part of the invention in which the plug (4) is screwed Fig.1, when it is fixed by snap-fastening.
  • the device, object of the invention consists in equipping the filling end (1) Fig. 1 of the refillable tube (2) with a thread (3) inside the tube (2), leaving the largest passage filling (1) possible, onto which a plug (4) is screwed.
  • the tube (2) is obtained by injection, it is technically possible to obtain the thread (3) directly by injection, this embodiment not forming part of the invention;
  • the threaded neck (5), of small diameter, used to extract the dough from the tube has a male thread while the thread (3), from the filling orifice (1), into which a plug (4) is screwed ) is a female thread; under these conditions a screw cap (6) of the conventional type may be suitable for closing the tube on the side (7) of the product extraction and a plug (4) with male thread closes it on the side (1) of the filling.
  • Fig. 3 in two parts comprising, on the one hand, a male thread (11) which is screwed into the female thread (10) Fig. 2 of the tube (8), on the other hand, an extraction neck (12) Fig. 3 comprising a male thread on which is fixed the plug of the extraction orifice; this plug Fig.3 may further include a ribbed collar (13) to facilitate its screwing on the end (9) Fig.2 of the tube (8) and its unscrewing; the tube (8) is closed, at the other end, by a thermal weld as for the other plastic tubes; filling is done by unscrewing the neck assembly Fig.
  • this end piece (15), of annular shape comprises a cylindrical outer part (17) comprising a chamfer (18) at its lower end, so as to be fitted into the end (14) of the tube and comprise at the upper end a collar (19) whose width is for example the thickness (20) of the tube on the end (21) of which it comes to bear; then the end piece (15) is fixed by friction welding; the choice of materials is then made accordingly.
  • the end piece (15) made of a material compatible from the point of view of welding with the material of the tube, can be force-fitted and welded thermally through the wall (22) of the tube, at the height of the fitting, in an area of sufficient size to prevent the end piece (15) from escaping.
  • Friction welding can be obtained by putting the end piece (15) in rotation so as to obtain for example the welding of the flange (19) on the end (14) of the tube; this latter solution will nevertheless require a particular development allowing the flexible tube to be maintained during the welding phase so that it does not twist.
  • the snap fastening according to an embodiment not forming part of the invention can be obtained by making at least one projection (23) Fig.
  • the plug (4) Fig.1 which is the same as that used in the configurations described in Fig.4 and Fig.5 has a male threaded cylindrical part (35) Fig.1 which is screwed into the end piece (15) Fig. 4 or (25) Fig.5; this threaded part (35) Fig.1 is integral with a cylindrical part (36), the diameter of which is slightly greater than the outside diameter of the tube (2) in the case described in Fig.1 and of the flange (19) Fig. 4 or (29) Fig.5 of the nozzle, and whose cylindrical wall (37) is striated to allow a good grip for screwing and unscrewing; the lower part (38) of this striated cylindrical part abuts on the upper part of the collar (19) Fig.4.
  • the assembly of the plug (4) Fig.1 and the endpiece (15) Fig.4 comprises a braking or locking device preventing its untimely unscrewing;
  • the upper part of the collar (19) may for example include a device (38) for locking the plug (4) Fig. 1 when it is screwed on: the position of the plug (4) is known with good precision when is screwed onto the end piece (15) Fig.4 so we can for example provide on the collar (15) a protrusion (19) which will be housed at the end of screwing in a hollow in the lower part (38) Fig.
  • the two-part stopper described in Fig.2 can also be fixed on flexible cylindrical tubes comprising at one end a nozzle (19) Fig.4 or (25) Fig.5 and which can be closed at the other end by welding obtained , as described above, by crushing the tube, or crimping or any other closing means.
  • the plug assembly system (4) with the female screw thread (3) is taken as an example because other known systems can be used, in particular systems making it possible to obtain an assembly correctly locked in a quarter turn using for example threads interrupted, or applied to a conical surface, or a bayonet fixing system.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Closures For Containers (AREA)
  • Pens And Brushes (AREA)
  • Coating Apparatus (AREA)

Abstract

Refillable tube container (2) for paste comprising on the side opposite the product-dispensing neck (5), a wide aperture (1) closed by a screw cap (4) for refilling the tube (2) when it is empty with any other tube containing paste available on the market. The user can therefore have paste dispensing tubes of the size corresponding to his needs.

Description

Tube conteneur de pâte comprenant un dispositif de rechargement verrouillé par un bouchon vissé. L'invention concerne un dispositif permettant de rendre rechargeable un tube servant à conditionner et à distribuer des pâtes telles que le dentifrice.Dough container tube comprising a reloading device locked by a screw cap. The invention relates to a device for making rechargeable a tube used for packaging and dispensing of pastes such as toothpaste.

L'emploi des tubes destinés au conditonnement des pâtes est bien connu; les tubes sont essentiellement des produits à usage unique composés d'un tube mince et souple, soit métallique, soit plastique; une des extrémités du tube comporte un rétrécissement avec un goulot sur lequel vient s'ajuster un bouchon qui est généralement vissé; l'autre extrémité du tube sert d'abord à son remplissage avec la pâte à conditionner, puis elle est fermée par sertissage ou soudure. L'objet de la présente invention concerne un dispositif permettant la réouverture et la refermeture de ce tube avec une ouverture large, afin que, lorsqu'il est vide ou insuffisamment rempli, on puisse y remettre de la pâte; en effet, si on veut utiliser un tube hors standard à usage unique (élément d'une trousse de toilette compacte par exemple), il se pose immédiatement un problème de réapprovisionnement qui est à peu près impossible à résoudre; d'où la nécessité de proposer aux acheteurs des trousses de toilette contenant des tubes qu'ils pourront remplir eux-même et recharger à partir des tubes standards qu'ils utilisent habituellement; ce concept de tube rechargeable contribue à limiter la consommation de matériau d'emballage pour les produits de consommation courante. Le concept du tube rechargeable existe déjà depuis plusieurs années; le tube est généralement composé d'un tube en matière plastique souple susceptible de reprendre sa forme initiale, si possible sans froissures, lorsque le tube ayant été vidé, on le remplit à nouveau; mais les solutions utilisées à ce jour présentent des inconvénients qu'il est avantageux de supprimer pour en simplifier la mise en oeuvre. Parmi les systèmes connus, il existe d'abord une pince de verrouillage mécanique d'un tube dont le fond a été préalablement replié sur lui-même; ce système très simple présente l'inconvénient de nécessiter une certaine habileté pour mettre la pince en place et c'est une opération qui est difficilement mécanisable pour le fabricant du tube qui doit la mettre en place le premier. Un autre système, plus facile d'emploi, suivant le brevet FR-A-2545450 consiste en l'utilisation d'un bouchon à jupe cylindrique enfoncé à force dans le tube; l'inconvénient d'un tel système réside d'abord dans le fait que, lorsque l'on enfonce le bouchon lors d'un rechargement de pâte, l'air ne peut s'échapper et le bouchon ressort de son logement, ensuite dans le mauvais verrouillage de l'assemblage du bouchon et du tube, découlant du fluage du tube sous tension, dont le diamètre s'élargit; si bien que lorsqu'on presse le tube le bouchon s'échappe de son logement.The use of tubes intended for the packaging of pasta is well known; the tubes are essentially single-use products made up of a thin and flexible tube, either metallic or plastic; one end of the tube has a narrowing with a neck on which comes to adjust a plug which is generally screwed; the other end of the tube is first used to fill it with the dough to be packaged, then it is closed by crimping or welding. The object of the present invention relates to a device allowing the reopening and reclosing of this tube with a wide opening, so that, when it is empty or insufficiently filled, it is possible to put dough back into it; indeed, if one wants to use a non-standard tube for single use (element of a compact toilet bag for example), there immediately arises a problem of restocking which is almost impossible to solve; hence the need to offer buyers toilet bags containing tubes that they can fill themselves and reload from the standard tubes they usually use; this concept of refillable tube helps to limit the consumption of packaging material for everyday products. The concept of the rechargeable tube has already existed for several years; the tube is generally composed of a flexible plastic tube capable of resuming its initial shape, if possible without wrinkling, when the tube having been emptied, it is refilled; but the solutions used to date have drawbacks which it is advantageous to eliminate in order to simplify their implementation. Among the known systems, there is first a mechanical locking clamp of a tube whose bottom has been previously folded back on itself; this very simple system has the disadvantage of requiring a certain skill to put the clamp in place and it is an operation which is difficult to mechanize for the manufacturer of the tube who must put it in place first. Another system, easier to use, according to patent FR-A-2545450 consists in the use of a plug with a cylindrical skirt forced into the tube; the disadvantage of such a system lies first in the fact that, when the plug is pressed during a reloading of dough, the air cannot escape and the plug comes out of its housing, then in poor locking of the plug and tube assembly, resulting from the creep of the tube under tension, the diameter of which widens; so that when the tube is pressed the plug escapes from its housing.

La publication CH-A-230000 décrit un tube conteneur rechargeable suivant le préambule de la revendication 1. Plus spécifiquement, CH-A-230000 décrit une burette d'huile rechargeable par un goulot comme on remplit une bouteille, mais qui ne convient pas au rechargement par une pâte parce qu'il se forme immédiatement un bouchon de pâte qui se colle sur le goulot empêchant de poursuivre le remplissage par résistance à la compression de l'air emprisonné.The publication CH-A-230000 describes a refillable container tube according to the preamble of claim 1. More specifically, CH-A-230000 describes an oil burette refillable by a neck like filling a bottle, but which is not suitable for reloading with a paste because there immediately forms a plug of paste which sticks to the neck preventing further filling by resistance to compression of the trapped air.

Par conséquent, un but de la présente invention est de fournir un dispositif permettant de mettre en place, à l'extrémité de remplissage du tube, un bouchon correctement verrouillable et de manipulation simple, tout en assurant la réouverture et la refermeture de ce tube avec une ouverture large, afin que, lorsqu'il est vide ou insuffisamment rempli, on puisse y remettre de la pâte.Consequently, an object of the present invention is to provide a device making it possible to place, at the filling end of the tube, a plug which is correctly lockable and easy to handle, while ensuring the reopening and reclosing of this tube with a wide opening, so that, when it is empty or insufficiently filled, dough can be put back into it.

Suivant l'invention, ce but est atteint par un tube conteneur de pâte ayant les caractéristiques de la partie caractérisante de la revendication 1. Selon l'invention, le filetage femelle d'une des extrémités du tube fait partie d'un embout de forme sensiblement annulaire, qui s'enfonce dans l'extrémité du tube et qui est fixé à l'extrémité de remplissage du tube par soudure par friction.According to the invention, this object is achieved by a paste container tube having the characteristics of the characterizing part of claim 1. According to the invention, the female thread of one of the ends of the tube forms part of a shaped end piece substantially annular, which is inserted into the end of the tube and which is fixed to the filling end of the tube by friction welding.

La Fig. 1 représente un tube conteneur de pâte avec l'orifice de distribution tourné vers le bas et l'orifice de rechargement, en vue éclatée, pour voir l'intérieur du tube quand le bouchon (4) est vissé en place.Fig. 1 shows a dough container tube with the dispensing orifice facing downwards and the reloading orifice, in exploded view, to see the interior of the tube when the plug (4) is screwed in place.

La Fig. 2 représente, en vue partiellement éclatée, la partie du tube destinée à son rechargement; ce tube peut coopérer avec le bouchon selon l'invention de la Fig. 3.Fig. 2 shows, in partially exploded view, the part of the tube intended for its recharging; this tube can cooperate with the stopper according to the invention of FIG. 3.

La Fig. 3 représente une vue éclatée du bouchon de fermeture de l'orifice de rechargement modifié selon une variante de l'invention pour servir aussi d'orifice de distribution du produit.Fig. 3 shows an exploded view of the closure plug of the recharging orifice modified according to a variant of the invention to also serve as a product distribution orifice.

La Fig.4 représente la partie du tube, destinée à son rechargement, avec l'embout annulaire selon l'invention , dans lequel vient se visser le bouchon (4) de la Fig.1, lorsqu'il est fixé par soudure par friction avant sa mise en place dans le tube.Fig.4 shows the part of the tube, intended for its recharging, with the annular end piece according to the invention, into which the plug (4) of Fig.1 is screwed, when it is fixed by friction welding before it is placed in the tube.

La Fig.5 représente la partie du tube, destinée à son rechargement, avec l'embout annulaire selon une réalisation ne faisant pas partie de l'invention dans lequel vient se visser le bouchon (4) Fig.1, lorsqu'il est fixé par encliquetage.Fig.5 shows the part of the tube, intended for its recharging, with the annular end piece according to an embodiment not part of the invention in which the plug (4) is screwed Fig.1, when it is fixed by snap-fastening.

Nous n'avons pas représenté pour les figures 2, 4, 5, l'autre extrémité du tube qui peut, soit comporter un goulot de distribution comme indiqué Fig.1, soit comporter une fermeture par écrasement du tube qui est soudé ou serti lorsqu'ils coopèrent avec la Fig.3.We have not shown for Figures 2, 4, 5, the other end of the tube which may either have a dispensing neck as shown in Fig.1, or have a crushed closure of the tube which is welded or crimped when 'they cooperate with Fig. 3.

Le dispositif, objet de l'invention, consiste à équiper l'extrémité de remplissage (1) Fig.1 du tube rechargeable (2) d'un pas de vis (3) intérieur au tube (2), laissant le plus grand passage de remplissage (1) possible, sur lequel vient se visser un bouchon (4). Lorsque le tube (2) est obtenu par injection, il est techniquement possible d'obtenir le pas de vis (3) directement par injection, cette réalisation ne faisant pas partie de l'invention; le goulot fileté (5), de petit diamètre, servant à extraire la pâte du tube, comporte un filetage mâle tandis que le filetage (3), de l'orifice de remplissage (1), dans lequel vient se visser un bouchon (4) est un filetage femelle; dans ces conditions un bouchon à vis (6) de type classique peut convenir pour fermer le tube du côté (7) de l'extraction du produit et un bouchon (4) à filetage mâle vient le fermer du côté (1) du remplissage. Il est possible aussi, lorsque le tube est obtenu par injection, de fabriquer un tube (8) Fig.2 possédant à une extrémité (9), un filetage femelle interne (10) au tube (8) dans lequel viendra se visser un bouchon (4) Fig.1 avec un filetage mâle comme précédemment décrit, tandis que l'on fixe sur l'autre extrémité qui est ouverte une pièce supportant le goulot d'extraction (5) du produit qui n'a pas pu être fabriqué au moment de l'injection; le choix entre ces versions est lié essentiellement aux problèmes de tenue mécanique des moules d'injection provoqués par les dimensions du tube. Dans le cas où il n'est possible que de faire un seul filetage (10) sur le tube (8), comme décrit précédemment, il est possible d'y fixer un bouchon de remplissage Fig.3 en deux parties comprenant, d'une part, un filetage mâle (11) qui vient se visser dans le filetage femelle (10) Fig.2 du tube (8), d'autre part, un goulot d'extraction (12) Fig.3 comportant un filetage mâle sur lequel vient se fixer le bouchon de l'orifice d'extraction; ce bouchon Fig.3 peut comporter en outre une collerette striée (13) permettant de faciliter son vissage sur l'extrémité (9) Fig.2 du tube (8) et son dévissage; le tube (8) est fermé, à l'autre extrémité, par une soudure thermique comme pour les autres tubes plastiques; le remplissage se fait en dévissant l'ensemble goulot Fig.3 bouchon d'extraction du produit, puis lorsque cet ensemble est revissé, il suffit pour extraire du produit de dévisser le bouchon d'extraction; L'avantage d'un tel système est de pouvoir utiliser des lignes de remplissage traditionnelles si on veut livrer le tube déjà rempli pour une première utilisation. Dans une version préférée de l'invention on part d'un tube en matière plastique Fig.4 acheté dans le commerce avec le goulot et le bouchon d'extraction déjà en place à l'une des extrémités du tube tandis que l'autre extrémité (14) est une paroi mince, de forme cylindrique, largement ouverte; le goulot de remplissage est fait par l'apport d'une pièce intermédiaire (15) de forme annulaire, comportant un filetage femelle (16), fixée à demeure et de manière étanche, à l'extrémité de remplissage (14) du tube; un bouchon (4) Fig.1 comme décrit précédemment permet d'obturer le tube Fig.4 une fois qu'il est rempli; cet embout (15), de forme annulaire, comporte une partie extérieure cylindrique (17) comportant un chanfrein (18) à son extrémité inférieure, de manière à être emmanchée dans l'extrémité (14) du tube et comporter à l'extrémité supérieure une collerette (19) dont la largeur est par example de l'épaisseur (20) du tube sur l'extrémité (21) duquel elle vient s'appuyer; ensuite l'embout (15) est fixé par soudure par friction; le choix des matériaux est alors fait en conséquence. A titre d'exemple selon une réalisation ne faisant pas partie de l'invention, l'embout (15), constitué d'un matériau compatible au point de vue de la soudure avec le matériau du tube, peut être emmanché à force et soudé thermiquement à travers la paroi (22) du tube, à hauteur de l'emmanchement, suivant une zone de dimension suffisante pour empêcher l'embout (15) de s'échapper. La soudure par friction peut être obtenue en mettant l'embout (15) en rotation de manière à obtenir par exemple la soudure de la collerette (19) sur 1'extrémité (14) du tube; cette dernière solution demandera néanmoins un développement particulier permettant de maintenir le tube souple pendant la phase de soudure pour qu'il ne vrille pas. La fixation par encliquetage selon une réalisation ne faisant pas partie de l'invention peut être obtenue en faisant au moins une excroissance (23) Fig.5 sur l'extérieur de la jupe (24) de l'embout (25), comprenant une rampe (26) du côté du chanfrein (27) inférieur de l'embout (25) comme décrit Fig.4 et une butée (28) Fig.5 du côté de la collerette (29), qui viendra se loger au moment de l'assemblage dans un perçage (30) effectué à travers la paroi du tube (31), à hauteur de l'endroit où se trouvera l'excroissance (23) lorsque l'embout (25) sera en place sur le tube (31); lorsqu'on enfonce l'embout (25) dans le tube (31), la paroi du tube (31) se déforme pour laisser passer l'excroissance (23) jusqu'à ce que cette dernière débouche dans l'ouverture (30) pratiquée dans le tube; à ce moment-là, la paroi du tube (31) reprend sa place et vient bloquer l'embout (25) pour l'empêcher de ressortir, tandis que la collerette (29) vient en butée sur l'extrémité (32) du tube (31) pour empêcher l'embout (25) de s'enfoncer davantage; il est préférable de prévoir un dispositif de contrôle d'orientation relative du tube (31) et de l'embout (25) pour leur assemblage en automatique; ce peut être pour le tube une encoche (33) débouchant sur son bord supérieur (32), fabriquée simultanément au perçage (30) destiné à l'encliquetage, qui permet de connaître la position du tube (31), qui est associé à un repère (34) situé sur l'embout (25); le repère (34) et l'encoche (33) peuvent être conçus pour servir de guidage de manière à ce que lorsqu'ils s'emboîtent l'un dans l'autre, au moment de l'emmanchement, l'excroissance (23) soit correctement orientée au droit du perçage (30). Le bouchon (4) Fig.1 qui est le même que celui utilisé dans les configurations décrites Fig.4 et Fig.5 comporte une partie cylindrique filetée mâle (35) Fig.1 venant se visser dans l'embout (15) Fig.4 ou (25) Fig.5; cette partie filetée (35) Fig.1 est solidaire d'une partie cylindrique (36), dont le diamètre est légèrement supérieur au diamètre extérieur du tube (2) dans le cas décrit Fig.1 et de la collerette (19) Fig.4 ou (29) Fig.5 de l'embout, et dont la paroi cylindrique (37) est striée pour permettre une bonne saisie pour le vissage et le dévissage; la partie inférieure (38) de cette partie cylindrique striée vient s'appuyer en butée sur la partie supérieure de la collerette (19) Fig.4. Dans une variante de l'invention, l'assemblage du bouchon (4) Fig.1 et de l'embout (15) Fig.4 comporte un dispositif de freinage ou de verrouillage empêchant son dévissage intempestif; la partie supérieure de la collerette (19) peut par exemple comporter un dispositif (38) de verrouillage du bouchon (4) Fig.1 lorsqu'il est vissé: on connaît avec une bonne précision la position du bouchon (4) lorsqu'il est vissé sur l'embout (15) Fig.4 on peut donc par exemple prévoir sur la collerette (15) une excroissance (19) qui viendra se loger en fin de vissage dans un creux de la partie inférieure (38) Fig.1 de la partie cylindrique striée (36) créant ainsi un point dur indiquant à l'utilisateur que le verrouillage est en place on peut aussi imaginer une déformation volontaire en bout des filets du filetage femelle (16) afin d'assurer un freinage de l'assemblage. Le bouchon en deux parties décrit Fig.2 peut aussi se fixer sur des tubes cylindriques souples comprenant à une extrémité un embout (19) Fig.4 ou (25) Fig.5 et qui peuvent être refermés à l'autre bout par soudure obtenue, comme décrit précédemment, par écrasement du tube, ou sertissage ou tout autre moyen de fermeture. Le système d'assemblage du bouchon (4) avec le pas de vis femmelle (3) est pris à titre d'exemple parce qu'on peut utiliser d'autres systèmes connus, notamment des systèmes permettant d'obtenir un assemblage correctement verrouillé en un quart de tour en utilisant par exemple des filets interrompus, ou appliqués sur une surface conique, ou un système de fixation à bayonnette.The device, object of the invention, consists in equipping the filling end (1) Fig. 1 of the refillable tube (2) with a thread (3) inside the tube (2), leaving the largest passage filling (1) possible, onto which a plug (4) is screwed. When the tube (2) is obtained by injection, it is technically possible to obtain the thread (3) directly by injection, this embodiment not forming part of the invention; the threaded neck (5), of small diameter, used to extract the dough from the tube, has a male thread while the thread (3), from the filling orifice (1), into which a plug (4) is screwed ) is a female thread; under these conditions a screw cap (6) of the conventional type may be suitable for closing the tube on the side (7) of the product extraction and a plug (4) with male thread closes it on the side (1) of the filling. It is also possible, when the tube is obtained by injection, to manufacture a tube (8) Fig.2 having at one end (9), a female internal thread (10) in the tube (8) into which a plug will be screwed (4) Fig. 1 with male thread as before described, while fixing on the other end which is open a part supporting the extraction neck (5) of the product which could not be manufactured at the time of injection; the choice between these versions is essentially linked to the problems of mechanical strength of the injection molds caused by the dimensions of the tube. In the case where it is only possible to make a single thread (10) on the tube (8), as described above, it is possible to fix therein a filling plug Fig. 3 in two parts comprising, on the one hand, a male thread (11) which is screwed into the female thread (10) Fig. 2 of the tube (8), on the other hand, an extraction neck (12) Fig. 3 comprising a male thread on which is fixed the plug of the extraction orifice; this plug Fig.3 may further include a ribbed collar (13) to facilitate its screwing on the end (9) Fig.2 of the tube (8) and its unscrewing; the tube (8) is closed, at the other end, by a thermal weld as for the other plastic tubes; filling is done by unscrewing the neck assembly Fig. 3 product extraction plug, then when this assembly is screwed back, it is sufficient to extract the product by unscrewing the extraction plug; The advantage of such a system is to be able to use traditional filling lines if one wants to deliver the already filled tube for a first use. In a preferred version of the invention, we start with a plastic tube Fig. 4 purchased commercially with the neck and the extraction plug already in place at one end of the tube while the other end (14) is a thin wall, cylindrical in shape, widely open; the filling neck is made by the provision of an intermediate piece (15) of annular shape, comprising a female thread (16), fixed permanently and sealingly, at the filling end (14) of the tube; a plug (4) Fig. 1 as described previously makes it possible to close the tube Fig. 4 once that it is filled; this end piece (15), of annular shape, comprises a cylindrical outer part (17) comprising a chamfer (18) at its lower end, so as to be fitted into the end (14) of the tube and comprise at the upper end a collar (19) whose width is for example the thickness (20) of the tube on the end (21) of which it comes to bear; then the end piece (15) is fixed by friction welding; the choice of materials is then made accordingly. By way of example according to an embodiment not forming part of the invention, the end piece (15), made of a material compatible from the point of view of welding with the material of the tube, can be force-fitted and welded thermally through the wall (22) of the tube, at the height of the fitting, in an area of sufficient size to prevent the end piece (15) from escaping. Friction welding can be obtained by putting the end piece (15) in rotation so as to obtain for example the welding of the flange (19) on the end (14) of the tube; this latter solution will nevertheless require a particular development allowing the flexible tube to be maintained during the welding phase so that it does not twist. The snap fastening according to an embodiment not forming part of the invention can be obtained by making at least one projection (23) Fig. 5 on the outside of the skirt (24) of the end piece (25), comprising a ramp (26) on the side of the lower chamfer (27) of the end piece (25) as described in Fig. 4 and a stop (28) Fig. 5 on the side of the flange (29), which will be received when the '' assembly in a hole (30) made through the wall of the tube (31), up to where the protuberance (23) will be when the end piece (25) is in place on the tube (31) ; when the end piece (25) is pressed into the tube (31), the wall of the tube (31) deforms to allow the protrusion (23) to pass through until the latter opens into the opening (30) practiced in the tube; at that time, the wall of the tube (31) takes its place and comes to block the end piece (25) to prevent it from coming out again, while the flange (29) abuts on the end (32) of the tube (31) to prevent the end piece ( 25) to sink further; it is preferable to provide a device for controlling the relative orientation of the tube (31) and the end piece (25) for their automatic assembly; it may be for the tube a notch (33) opening on its upper edge (32), produced simultaneously with the hole (30) intended for the snap-fastening, which makes it possible to know the position of the tube (31), which is associated with a mark (34) located on the nozzle (25); the mark (34) and the notch (33) can be designed to serve as a guide so that when they fit into each other, at the time of fitting, the projection (23 ) is correctly oriented in line with the hole (30). The plug (4) Fig.1 which is the same as that used in the configurations described in Fig.4 and Fig.5 has a male threaded cylindrical part (35) Fig.1 which is screwed into the end piece (15) Fig. 4 or (25) Fig.5; this threaded part (35) Fig.1 is integral with a cylindrical part (36), the diameter of which is slightly greater than the outside diameter of the tube (2) in the case described in Fig.1 and of the flange (19) Fig. 4 or (29) Fig.5 of the nozzle, and whose cylindrical wall (37) is striated to allow a good grip for screwing and unscrewing; the lower part (38) of this striated cylindrical part abuts on the upper part of the collar (19) Fig.4. In a variant of the invention, the assembly of the plug (4) Fig.1 and the endpiece (15) Fig.4 comprises a braking or locking device preventing its untimely unscrewing; the upper part of the collar (19) may for example include a device (38) for locking the plug (4) Fig. 1 when it is screwed on: the position of the plug (4) is known with good precision when is screwed onto the end piece (15) Fig.4 so we can for example provide on the collar (15) a protrusion (19) which will be housed at the end of screwing in a hollow in the lower part (38) Fig. 1 of the striated cylindrical part (36) thus creating a hard point indicating to the user that the lock is in place we can also imagine a voluntary deformation at the end of the threads of the female thread (16) to ensure braking of the assembly. The two-part stopper described in Fig.2 can also be fixed on flexible cylindrical tubes comprising at one end a nozzle (19) Fig.4 or (25) Fig.5 and which can be closed at the other end by welding obtained , as described above, by crushing the tube, or crimping or any other closing means. The plug assembly system (4) with the female screw thread (3) is taken as an example because other known systems can be used, in particular systems making it possible to obtain an assembly correctly locked in a quarter turn using for example threads interrupted, or applied to a conical surface, or a bayonet fixing system.

Claims (3)

  1. A refillable tube containing paste refillable from one of the ends (9;14) of the tube (2;8;37;31) equipped with a cylindrical opening of large diameter having an internal female thread (3;10;16), in which a cap (4;12) is screwed on by means of a male thread (11) located on its lower part (35),
       characterized in that the female thread (3;10;16) is part of a plug (15;25) approximately ring-shaped, which enters into the end (9;14) of the tube and which is fastened to the filling end (9;14) of the tube by friction soldering.
  2. A refillable tube containing paste in accordance with claim 1, characterized in that the plug (15) has a flange (19;29) of a width almost equal to the thickness (2) of the tube (37;31) in order to limit its sinking in the tube.
  3. A refillable tube containing paste in accordance with any one of the preceding claims, characterized in that the cap (12) has a neck (12) for dispensing the product, such that the filling of the tube and the dispensing of the product might be done by the same end (9) of the tube.
EP93900253A 1991-11-14 1992-11-16 Tube container for paste comprising a refilling device locked by a screw cap Expired - Lifetime EP0611356B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9114268 1991-11-14
FR9114268A FR2683797A1 (en) 1991-11-14 1991-11-14 PULP CONTAINER TUBE COMPRISING A RECHARGING DEVICE LOCKED BY A SCREWED CAP.
PCT/FR1992/001064 WO1993010013A1 (en) 1991-11-14 1992-11-16 Tube container for paste comprising a refilling device locked by a screw cap

Publications (2)

Publication Number Publication Date
EP0611356A1 EP0611356A1 (en) 1994-08-24
EP0611356B1 true EP0611356B1 (en) 1996-04-17

Family

ID=9419118

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93900253A Expired - Lifetime EP0611356B1 (en) 1991-11-14 1992-11-16 Tube container for paste comprising a refilling device locked by a screw cap

Country Status (6)

Country Link
EP (1) EP0611356B1 (en)
CA (1) CA2123434A1 (en)
DE (1) DE69210037T2 (en)
ES (1) ES2087708T3 (en)
FR (1) FR2683797A1 (en)
WO (1) WO1993010013A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8783515B2 (en) 2012-10-25 2014-07-22 Sonoco Development, Inc. Dispenser with fitment

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU7856894A (en) * 1993-11-26 1995-06-13 Weener Plastik Gmbh & Co. Kg Container
DE19618521A1 (en) * 1996-05-08 1997-11-13 Uhu Gmbh Method for filling an adhesive dispenser from the rear and adhesive dispenser for carrying out the method
US20010040164A1 (en) * 2000-05-09 2001-11-15 Cleator Christopher John Containers
EP1258431A1 (en) * 2001-05-17 2002-11-20 Adim Scandolara SpA Tube for viscous products
DE10155344A1 (en) * 2001-11-10 2003-05-28 Schott Glas Filled container for a subcutaneous jet injection system has a screw closure cap, of the same material as the container, with a centering unit to align a pin with the jet outlet opening for sealing
PE20050009A1 (en) * 2003-10-01 2005-02-17 Molytec Ltda SEALING SYSTEM FOR COLLAPSIBLE TUBES AND MACHINE
US20100072224A1 (en) * 2008-09-25 2010-03-25 Minna Ha Fillable and/or refillable tube
EP4306441A1 (en) * 2022-07-14 2024-01-17 PackSys Global AG Recyclable packaging tube

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB595638A (en) * 1945-03-20 1947-12-11 Christopher Henry Patrick Improvements in or relating to bottles for dispensing liquids
US2899097A (en) * 1959-08-11 Containers of capsule like form
FR907075A (en) * 1944-04-05 1946-02-28 Airtight sealing process for tubular or other plastic containers
FR2545450B3 (en) * 1983-05-06 1985-11-08 Benarrouch Jacques PLUG FOR RECHARGEABLE FLEXIBLE TUBES FOR PACKAGING LIQUID OR PASTY PRODUCTS
DE3921971A1 (en) * 1989-07-04 1991-01-17 Bosch Siemens Hausgeraete Refillable drink dispenser for refrigerator door mounting - has cap closing base of inverted bottle removable for refilling

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8783515B2 (en) 2012-10-25 2014-07-22 Sonoco Development, Inc. Dispenser with fitment

Also Published As

Publication number Publication date
WO1993010013A1 (en) 1993-05-27
FR2683797B1 (en) 1995-02-17
EP0611356A1 (en) 1994-08-24
ES2087708T3 (en) 1996-07-16
DE69210037D1 (en) 1996-05-23
CA2123434A1 (en) 1993-05-27
FR2683797A1 (en) 1993-05-21
DE69210037T2 (en) 1996-10-02

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