FR2786466A1 - Bottle cap for still or effervescent liquid has tamperproof ring injection molded over annular shoulder at end of injection remainder of cap - Google Patents
Bottle cap for still or effervescent liquid has tamperproof ring injection molded over annular shoulder at end of injection remainder of cap Download PDFInfo
- Publication number
- FR2786466A1 FR2786466A1 FR9815030A FR9815030A FR2786466A1 FR 2786466 A1 FR2786466 A1 FR 2786466A1 FR 9815030 A FR9815030 A FR 9815030A FR 9815030 A FR9815030 A FR 9815030A FR 2786466 A1 FR2786466 A1 FR 2786466A1
- Authority
- FR
- France
- Prior art keywords
- cap
- shell
- tamper
- plug
- injection
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- 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
- B65D41/32—Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
- B65D41/34—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt
- B65D41/3442—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with rigid bead or projections formed on the tamper element and coacting with bead or projections on the container
- B65D41/3457—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with rigid bead or projections formed on the tamper element and coacting with bead or projections on the container the tamper element being formed separately but connected to the closure
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Closures For Containers (AREA)
Abstract
Description
La présente invention concerne un bouchon en matière plastique pour un récipient tel qu'une bouteille, ainsi qu'un procédé pour la fabrication d'un tel bouchon. The present invention relates to a plastic stopper for a container such as a bottle, as well as to a method for manufacturing such a stopper.
On connaît déjà des bouchons en matière plastique comportant une coque, pourvue d'un fond et d'une jupe latérale, ainsi qu'une bague d'inviolabilité prolongeant ladite jupe latérale à son extrémité ouverte, opposée audit fond. Plastic plugs are already known comprising a shell, provided with a bottom and a side skirt, as well as a tamper-evident ring extending said side skirt at its open end, opposite to said bottom.
De tels bouchons sont destinés à tre montés sur le col de bouteilles réalisées en matière plastique ou en verre et contenant des eaux minérales ou gazeuses, des boissons fruitées, des sodas, des vins, etc... Such caps are intended to be mounted on the neck of bottles made of plastic or glass and containing mineral or aerated waters, fruity drinks, sodas, wines, etc.
Ladite coque peut comporter un filetage interne destiné à coopérer avec un filetage externe prévu sur le col desdites bouteilles. Said shell may include an internal thread intended to cooperate with an external thread provided on the neck of said bottles.
Les bouchons connus de ce type sont réalisés, par moulage par injection, en une seule pièce comprenant ladite coque et la bague d'inviolabilité. The known plugs of this type are produced by injection molding in a single piece comprising said shell and the tamper-evident ring.
Dans certaines applications, il serait avantageux que la coque et la bague d'inviolabilité puissent présenter des caractéristiques mécaniques différentes pour permettre l'optimisation de leurs fonctions respectives. In certain applications, it would be advantageous if the shell and the tamper-evident ring could have different mechanical characteristics to allow the optimization of their respective functions.
Cependant, cela est impossible avec ces bouchons connus monolithiques.However, this is impossible with these known monolithic stoppers.
La présente invention a pour objet de remédier à cet inconvénient. The object of the present invention is to remedy this drawback.
A cette fin, selon l'invention, le bouchon en matière plastique du type rappelé ci-dessus est remarquable en ce qu'il comporte : -une première pièce, moulée par injection, qui correspond à une pre
mière partie dudit bouchon formant soit ladite coque, soit ladite bague
d'inviolabilité et qui comporte un épaulement annulaire d'appui du côté
du reste dudit bouchon ; et -une seconde pièce, surmoulée par injection sur ladite première pièce,
qui correspond au reste dudit bouchon et qui est solidarisée de ladite
première pièce au niveau dudit épaulement annulaire d'appui de cette
dernière.To this end, according to the invention, the plastic plug of the type recalled above is remarkable in that it comprises: a first part, injection molded, which corresponds to a pre
first part of said plug forming either said shell or said ring
tamper-evident and which has an annular support shoulder on the side
the rest of said plug; and a second part, molded by injection on said first part,
which corresponds to the rest of said plug and which is integral with said
first part at the level of said annular support shoulder of this
last.
Ainsi, lesdites première et seconde pièces peuvent tre réalisées en des matières plastiques différentes dont les propriétés mécaniques sont optimisées à la fonction remplie par chacun de ces deux éléments. Thus, said first and second parts can be made of different plastic materials whose mechanical properties are optimized for the function fulfilled by each of these two elements.
De plus, lesdites première et seconde pièces peuvent tre réalisées en matières plastiques de couleurs différentes.In addition, said first and second parts can be made of plastic materials of different colors.
Lorsque lesdites première et seconde pièces sont réalisées en des matières plastiques"amoureuses"I'une de I'autre, lesdites pièces sont rendues solidaires par adhérence chimique des matières qui les constituent. Lorsque cela n'est pas le cas, il est possible de rendre lesdites première et seconde pièces solidaires l'une de I'autre par adhérence mécanique, notamment en prévoyant des saillies et/ou des creux d'accrochage sur ledit épaulement annulaire d'appui. When said first and second parts are made of plastics "in love" with one another, said parts are made integral by chemical adhesion of the materials which constitute them. When this is not the case, it is possible to make said first and second parts integral with one another by mechanical adhesion, in particular by providing projections and / or hooking recesses on said annular shoulder of support.
Pour fabriquer le bouchon en matière plastique conforme à la présente invention, on peut : -réaliser, par moulage par injection, une première pièce qui à
une première partie dudit bouchon formant soit ladite coque, soit ladite
bague d'inviolabilité, un épaulement annulaire d'appui étant ménagé
dans ladite première pièce du côté du reste dudit bouchon ; et -surmouler par injection, sur ladite première pièce, une seconde pièce
correspondant au reste dudit bouchon de façon que lesdites première
et seconde pièces soient solidarisées l'une de I'autre au niveau dudit
épaulement annulaire d'appui.To manufacture the plastic plug according to the present invention, it is possible: to make, by injection molding, a first part which
a first part of said plug forming either said shell or said
tamper-evident ring, an annular support shoulder being provided
in said first part on the side of the rest of said plug; and -molding by injection, on said first part, a second part
corresponding to the rest of said plug so that said first
and second parts are secured to each other at said level
annular support shoulder.
En mettant en oeuvre une machine d'injection par moulage connue, comportant deux points d'injection et un moule ouvrant mobile portant des noyaux de formes différentes, il est possible d'obtenir directe ment le bouchon conforme à la présente invention, prt à tre monté sur le col d'une bouteille, à partir de cette unique machine, qui assure le moulage des deux pièces et leur solidarisation l'une à I'autre. By using a known injection molding machine, comprising two injection points and a movable opening mold carrying cores of different shapes, it is possible to directly obtain the plug according to the present invention, ready to be mounted on the neck of a bottle, from this single machine, which ensures the molding of the two parts and their joining together.
Les figures du dessin annexé feront bien comprendre comment l'invention peut tre réalisée. Sur ces figures, des références identiques désignent des éléments semblables. The figures of the appended drawing will make it easy to understand how the invention can be implemented. In these figures, identical references designate similar elements.
La figure 1 montre, en coupe axiale, un exemple de réalisation du bouchon conforme à la présente invention. Figure 1 shows, in axial section, an embodiment of the plug according to the present invention.
Les figures 2A, 2B et 2C illustrent trois étapes de la fabrication du bouchon de la figure 1. FIGS. 2A, 2B and 2C illustrate three stages in the manufacture of the plug of FIG. 1.
Le bouchon en matière plastique 1, montré par la figure 1, comporte une coque 2 pourvue d'un fond 3 et d'une jupe latérale 4, ainsi qu'une bague d'inviolabilité 5, prolongeant ladite jupe latérale 4 à son extrémité ouverte, opposée au fond 3. The plastic plug 1, shown in FIG. 1, comprises a shell 2 provided with a bottom 3 and a side skirt 4, as well as a tamper-evident ring 5, extending said side skirt 4 at its open end , opposite the bottom 3.
Comme on peut le voir sur la figure 1, dans le bouchon 1, la coque 2, avec son fond 3 et sa jupe latérale 4, forme une première pièce moulée par injection. De mme, la bague d'inviolabilité 5 forme une seconde pièce, également moulée par injection, lesdites pièces 2 et 5 étant solidarisées l'une de l'autre le long d'un épaulement annulaire d'appui 6. As can be seen in Figure 1, in the plug 1, the shell 2, with its bottom 3 and its side skirt 4, forms a first injection molded part. Likewise, the tamper-evident ring 5 forms a second part, also injection molded, said parts 2 and 5 being secured to one another along an annular support shoulder 6.
Les matières plastiques constitutives des pièces 2 et 5 peuvent tre différentes et/ou présenter des couleurs différentes. The plastic materials making up parts 2 and 5 may be different and / or have different colors.
Le long de l'épaulement 6, les pièces 2 et 5 peuvent tre rendues solidaires l'une de l'autre par adhérence chimique de leurs matières constitutives ou par adhérence mécanique. Dans ce dernier cas, on peut prévoir des saillies et/ou des creux d'accrochage sur ledit épaulement 6 (non représentés). Along the shoulder 6, the parts 2 and 5 can be made integral with one another by chemical adhesion of their constituent materials or by mechanical adhesion. In the latter case, it is possible to provide projections and / or hooking recesses on said shoulder 6 (not shown).
Dans le procédé de réalisation illustré par les figures 2A, 2B et 2C, on utilise un moule 7 pourvu d'au moins une empreinte 8 représentant la forme extérieure de la coque 2, ainsi qu'un noyau mobile 9, dont la forme extérieure 10 correspond à la forme intérieure de ladite coque 2. In the embodiment illustrated in FIGS. 2A, 2B and 2C, a mold 7 is used provided with at least one cavity 8 representing the external shape of the shell 2, as well as a movable core 9, the external shape of which 10 corresponds to the interior shape of said shell 2.
Lorsque le noyau 9 est en place dans 1'empreinte 8 (figure 2A), il laisse subsister dans cette dernière un espace 11 correspondant à la coque 2.When the core 9 is in place in the imprint 8 (FIG. 2A), it leaves in the latter a space 11 corresponding to the shell 2.
Cet espace 11 comporte un épaulement annulaire 12, correspondant à I'épaulement 6 mentionné ci-dessus.This space 11 includes an annular shoulder 12, corresponding to the shoulder 6 mentioned above.
Après injection d'une première matière plastique dans 1'espace 11 et extraction du noyau 9, la coque 2 avec son fond 3 et sa jupe latérale 4 reste dans l'empreinte 8 de la partie de moule 7, ladite coque étant pourvue de l'épaulement annulaire 6 (figure 2B) résultant de l'épaulement annulaire 12. En introduisant alors dans la coque 2 restée en place dans son empreinte 8 un nouveau noyau 13 (figure 2C), il est possible d'obturer complètement 1'espace intérieur de la coque 2 (comme le faisait le noyau 9) tout en ménageant un espace annulaire 14, dont la forme correspond à la bague d'inviolabilité 5 et qui est ouvert en regard de 1'6paulement
Ainsi, on comprendra aisément qu'en injectant une autre matière plastique dans !'espace annulaire 14, on obtient la bague d'inviolabilité 5, qui est solidarisée de la coque 2 au niveau de t'épau ! ement 6. II suffit alors de retirer le noyau 13 et d'éjecter le bouchon 1 de l'empreinte 8, pour obtenir un bouchon conforme à la présente invention et prt à tre monté sur le col d'une bouteille.After injection of a first plastic material into the space 11 and extraction of the core 9, the shell 2 with its bottom 3 and its side skirt 4 remains in the cavity 8 of the mold part 7, said shell being provided with the 'annular shoulder 6 (Figure 2B) resulting from the annular shoulder 12. Then introducing into the shell 2 remained in place in its imprint 8 a new core 13 (Figure 2C), it is possible to completely seal the interior space of the shell 2 (as did the core 9) while providing an annular space 14, the shape of which corresponds to the tamper-evident ring 5 and which is open opposite the shoulder
Thus, it will be readily understood that by injecting another plastic material into the annular space 14, the tamper-evident ring 5 is obtained, which is secured to the shell 2 at the level of the shoulder! ement 6. It then suffices to remove the core 13 and eject the stopper 1 from the impression 8, to obtain a stopper in accordance with the present invention and ready to be mounted on the neck of a bottle.
On remarquera que, dans l'exemple de réalisation des figures 2A, 2B et 2C, on a supposé que la bague 5 était surmoulée sur la coque 2. It will be noted that, in the embodiment of FIGS. 2A, 2B and 2C, it has been assumed that the ring 5 was molded onto the shell 2.
II est bien évident que, conformément à la présente invention, on pourrait commencer par réaliser la bague d'inviolabilité 5, avec un épau- lement 6 et ensuite surmouler la coque 2 sur ladite bague d'inviolabilité. It is obvious that, in accordance with the present invention, one could start by making the tamper-evident ring 5, with a shoulder 6 and then overmolding the shell 2 on said tamper-evident ring.
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9815030A FR2786466B1 (en) | 1998-11-30 | 1998-11-30 | PLASTIC PLUG WITH INVIOLABILITY RING AND METHOD FOR THE PRODUCTION THEREOF |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9815030A FR2786466B1 (en) | 1998-11-30 | 1998-11-30 | PLASTIC PLUG WITH INVIOLABILITY RING AND METHOD FOR THE PRODUCTION THEREOF |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2786466A1 true FR2786466A1 (en) | 2000-06-02 |
FR2786466B1 FR2786466B1 (en) | 2001-01-12 |
Family
ID=9533330
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9815030A Expired - Lifetime FR2786466B1 (en) | 1998-11-30 | 1998-11-30 | PLASTIC PLUG WITH INVIOLABILITY RING AND METHOD FOR THE PRODUCTION THEREOF |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2786466B1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007138191A2 (en) * | 2006-05-31 | 2007-12-06 | M.B.F. Plastiques | Closure device for bottle |
WO2015185465A1 (en) * | 2014-06-03 | 2015-12-10 | Obrist Closures Switzerland Gmbh | A closure for a container, a tamper indicating band, a combination and a method |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4919285A (en) * | 1988-05-11 | 1990-04-24 | Thoroughbred Plastics Corp. | Tamper evident closure and method of manufacture of the same |
EP0476377A1 (en) * | 1990-09-11 | 1992-03-25 | SABEU KUNSTSTOFFWERK NORTHEIM GmbH | Plastic screw cap for a container and method of manufacturing the screw cap |
US5135123A (en) * | 1990-09-20 | 1992-08-04 | Phoenix Closures, Inc. | Tamper-evident closure with a separately formed break away band |
US5328044A (en) * | 1992-01-25 | 1994-07-12 | Stella Kunststofftechnik Gmbh | Container closure with originality ring |
-
1998
- 1998-11-30 FR FR9815030A patent/FR2786466B1/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4919285A (en) * | 1988-05-11 | 1990-04-24 | Thoroughbred Plastics Corp. | Tamper evident closure and method of manufacture of the same |
US4919285B1 (en) * | 1988-05-11 | 1991-08-27 | Thoroughbred Plastics Corp | |
EP0476377A1 (en) * | 1990-09-11 | 1992-03-25 | SABEU KUNSTSTOFFWERK NORTHEIM GmbH | Plastic screw cap for a container and method of manufacturing the screw cap |
US5135123A (en) * | 1990-09-20 | 1992-08-04 | Phoenix Closures, Inc. | Tamper-evident closure with a separately formed break away band |
US5328044A (en) * | 1992-01-25 | 1994-07-12 | Stella Kunststofftechnik Gmbh | Container closure with originality ring |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007138191A2 (en) * | 2006-05-31 | 2007-12-06 | M.B.F. Plastiques | Closure device for bottle |
FR2901775A1 (en) * | 2006-05-31 | 2007-12-07 | M B F Plastiques Sa | CLOSURE DEVICE FOR BOTTLE |
WO2007138191A3 (en) * | 2006-05-31 | 2008-02-14 | Mbf Plastiques Sa | Closure device for bottle |
WO2015185465A1 (en) * | 2014-06-03 | 2015-12-10 | Obrist Closures Switzerland Gmbh | A closure for a container, a tamper indicating band, a combination and a method |
CN106414263A (en) * | 2014-06-03 | 2017-02-15 | 奥布里斯特封闭瑞士有限公司 | A closure for a container, a tamper indicating band, a combination and a method |
CN106414263B (en) * | 2014-06-03 | 2019-06-07 | 奥布里斯特封闭瑞士有限公司 | The closure member of container, tamper-evident instruction band, combination and method |
US10647478B2 (en) | 2014-06-03 | 2020-05-12 | Obrist Closures Switzerland Gmbh | Closure for a container, a tamper indicating band, a combination and a method |
Also Published As
Publication number | Publication date |
---|---|
FR2786466B1 (en) | 2001-01-12 |
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