EP1919790B1 - Container comprising a screw-on/screw-off locking cover - Google Patents

Container comprising a screw-on/screw-off locking cover Download PDF

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Publication number
EP1919790B1
EP1919790B1 EP06764665A EP06764665A EP1919790B1 EP 1919790 B1 EP1919790 B1 EP 1919790B1 EP 06764665 A EP06764665 A EP 06764665A EP 06764665 A EP06764665 A EP 06764665A EP 1919790 B1 EP1919790 B1 EP 1919790B1
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EP
European Patent Office
Prior art keywords
container
lid
threads
thread
peripheral
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Active
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EP06764665A
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German (de)
French (fr)
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EP1919790A1 (en
Inventor
Pascal Hennemann
Philippe Lautre
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Promens SA
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Plastohm SA
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D50/00—Closures with means for discouraging unauthorised opening or removal thereof, with or without indicating means, e.g. child-proof closures
    • B65D50/02—Closures with means for discouraging unauthorised opening or removal thereof, with or without indicating means, e.g. child-proof closures openable or removable by the combination of plural actions
    • B65D50/04—Closures with means for discouraging unauthorised opening or removal thereof, with or without indicating means, e.g. child-proof closures openable or removable by the combination of plural actions requiring the combination of simultaneous actions, e.g. depressing and turning, lifting and turning, maintaining a part and turning another one
    • B65D50/041—Closures with means for discouraging unauthorised opening or removal thereof, with or without indicating means, e.g. child-proof closures openable or removable by the combination of plural actions requiring the combination of simultaneous actions, e.g. depressing and turning, lifting and turning, maintaining a part and turning another one the closure comprising nested inner and outer caps or an inner cap and an outer coaxial annular member, which can be brought into engagement to enable removal by rotation
    • 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
    • B65D41/46—Snap-on caps or cap-like covers
    • B65D41/47—Snap-on caps or cap-like covers push-on and twist-off

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)

Abstract

The invention relates to a container (1) of the type that comprises a cylindrical body (2) which is equipped with a screw thread (5) for retaining a corresponding removable cover (6) which, in turn, is provided with a complementary retaining screw thread (9). In this way, the threaded cover (6) can be locked on the container (1) with the application of an initial axial pressure and subsequently unscrewed/rescrewed or unscrewed/locked by a user. The invention is characterised in that the internal screw thread (9) in the cover (6) comprises a plurality of micro-threads and in that the external screw thread (5) on the container (1) comprises at least one thread having a height greater than that of the micro-threads in the cover (6).

Description

La présente invention concerne un récipient muni d'un couvercle du type encliquetable dévissable et vissable.The present invention relates to a container provided with a screw-type lid that can be unscrewed and screwed.

Plus particulièrement, il s'agit d'un récipient du type comportant un corps cylindrique comprenant un fond et une paroi latérale à l'extérieur de laquelle, à proximité de son sommet, est réalisé un filetage. Celui-ci est destiné à retenir un couvercle de fermeture amovible correspondant, délimité par un fond et une jupe périphérique élastiquement déformable, à l'intérieur de laquelle est réalisé un filetage de retenue complémentaire. Ce filetage est apte à permettre l'encliquetage du couvercle fileté sur le récipient, par une pression initiale axiale, après un premier remplissage d'un produit, puis le dévissage-revissage dudit couvercle ou le dévissage-encliquetage dudit couvercle par un utilisateur.More particularly, it is a container of the type comprising a cylindrical body comprising a bottom and a side wall outside which, near its top, is made a thread. It is intended to retain a corresponding removable closure cover, delimited by a bottom and an elastically deformable peripheral skirt, within which is formed a complementary retaining thread. This threading is adapted to allow the latching of the threaded lid on the container, by an axial initial pressure, after a first filling of a product, and then the unscrewing-screwing of said lid or unscrewing-latching said lid by a user.

Un système de ce type est décrit dans le document US-A 6 105 802 .A system of this type is described in the document US-A 6,105,802 .

Dans ce type d'ensemble connu de l'art antérieur, un inconvénient réside dans la réalisation du filetage de retenue, au niveau du couvercle, qui doit avoir des filets suffisamment fins pour permettre un encliquetage aisé et complet du couvercle selon un axe vertical, par l'intermédiaire d'une pression raisonnable et sans reprise manuelle de vissage, un nombre de filets suffisamment nombreux afin de permettre un encliquetage précis sans indexation et un maintien du couvercle sans pour cela créer une interférence des filets du couvercle avec ceux du pot ou un encliquetage incomplet, et que ces filets soient suffisamment profonds pour permettre ultérieurement un vissage-dévissage normal par son utilisateur tout en garantissant un maintien du couvercle dans le cas d'une tentative d'arrachement dudit couvercle encliqueté. Les résultats recherchés sont donc contradictoires.In this type of assembly known from the prior art, a disadvantage lies in the realization of the retaining thread, at the level of the cover, which must have sufficiently fine threads to allow easy and complete clipping of the cover along a vertical axis, by means of a reasonable pressure and without manual screwing back, a sufficient number of threads to allow snapping precise without indexing and holding the lid without interfering with the threads of the lid with those of the pot or an incomplete snap, and that these nets are deep enough to allow later a normal screwing-unscrewing by its user while ensuring a maintenance of the cover in the case of an attempt to tear the said latched cover. The desired results are therefore contradictory.

La présente invention permet de résoudre ce problème et concerne à cet effet un récipient du type comportant un corps cylindrique comprenant un fond et une paroi latérale à l'extérieur de laquelle, à proximité de son sommet, est réalisé un filetage de retenue d'un couvercle de fermeture amovible correspondant, délimité par un fond et une jupe périphérique élastiquement déformable, à l'intérieur de laquelle est réalisé un filetage de retenue complémentaire apte à permettre l'encliquetage du couvercle fileté sur le récipient, par une pression initiale axiale, après un premier remplissage d'un produit, puis le dévissage-revissage ou le dévissage-encliquetage dudit couvercle par un utilisateur, caractérisé en ce que le filetage interne du couvercle est constitué initialement d'une pluralité d'ébauches de microfilets, réalisés en continu ou par portions de microfilets successifs, et en ce que le filetage externe du récipient est constitué par au moins un filet, réalisé en continu ou par portions de filets successifs.The present invention solves this problem and concerns for this purpose a container of the type comprising a cylindrical body comprising a bottom and a side wall outside which, near its top, is formed a retaining thread of a corresponding removable closure cover, delimited by a bottom and an elastically deformable peripheral skirt, within which is formed a complementary retaining thread adapted to allow the latching of the threaded lid on the container, by an axial initial pressure, after a first filling of a product, then unscrewing-screwing or unscrewing-snapping of said lid by a user, characterized in that the internal thread of the lid is initially constituted of a plurality of microfilette blanks, made continuously or in portions of successive microfilts, and in that the external thread of the container is constituted by at least one n net, made continuously or in portions of successive nets.

Lesdits filets sont de section triangulaire et forment, au sommet, un angle aigu de valeur telle à lui permettre, lors d'un premier dévissage du couvercle, et par déformation élastique de celui-ci, d'inciser plus profondément les ébauches de ses microfilets, à la manière d'un couteau, et de réaliser dans ceux-ci une empreinte définitive, correspondant sensiblement audit/audits filets-couteaux du récipient.Said nets are of triangular section and form, at the top, an acute angle of such a value as to allow it, during a first unscrewing of the lid, and by elastic deformation thereof, to incise deeper the blanks of its microfilets , in the manner of a knife, and to realize in them a definitive impression, corresponding substantially audit / audits nets-knives of the container.

Les filets-couteaux sont de hauteur supérieure à celle des ébauches de microfilets du couvercle, et dont le pas desdits filets-couteaux est différent du pas des ébauches de microfilets internes du couvercle, le nombre de départs des microfilets du couvercle étant un multiple du nombre de départs des filets-couteaux externes du récipient, de manière à faciliter l'encliquetage de celui-ci puis sa retenue, tout en permettant ultérieurement son dévissage-vissage ou son dévissage-encliquetage.The knife threads are of a greater height than that of the microfilette blanks of the lid, and whose pitch of said knife threads is different from the pitch of the microfilts blanks inside the lid, the number of microfilct lid starts being a multiple of the number starting of the external knife-nets of the container, so as to facilitate the latching thereof and its retention, while allowing its subsequent unscrewing-screwing or unscrewing-latching.

Un récipient et un couvercle associé ainsi conçus permettent non seulement de remédier à l'inconvénient précité, mais permettent également une automatisation du conditionnement sur une ligne de fabrication plus simple.A container and an associated lid thus designed not only overcome the aforementioned drawback, but also allow automation of packaging on a simpler manufacturing line.

Est également obtenue une amélioration de l'étanchéité du produit fini, qui est beaucoup plus importante.Also achieved is improved sealing of the finished product, which is much more important.

La présente invention concerne également les caractéristiques qui ressortiront au cours de la description qui va suivre, et qui devront être considérées isolément ou selon toutes leurs combinaisons techniques possibles.The present invention also relates to the features which will emerge during the following description, which should be considered in isolation or in all their possible technical combinations.

Cette description donnée à titre d'exemple non limitatif, fera mieux comprendre comment l'invention peut être réalisée en référence aux dessins annexés sur lesquels:

  • La figure 1 représente une vue frontale d'un récipient équipé d'un couvercle, selon l'invention.
  • La figure 2 est une vue en coupe partielle à échelle agrandie d'un couvercle sur un récipient, selon l'invention, en cours de montage par encliquetage axial.
  • La figure 3 est une vue une vue en coupe partielle à échelle agrandie d'un couvercle sur un récipient, selon l'invention, après montage par encliquetage axial.
  • La figure 4 est une vue frontale d'un récipient selon l'invention.
  • La figure 5 est une vue en coupe, à échelle agrandie, du détail G selon l'axe médian x-x' de la figure 4.
  • La figure 6 est une vue en coupe, à échelle agrandie, du détail K selon la figure 4.
  • La figure 7 est une vue en coupe d'un couvercle selon l'invention, destiné à être monté sur le récipient de la figure 4.
  • La figure 8 est une vue de détail, en coupe, à échelle agrandie, du détail B selon la figure 7.
  • La figure 9 est une vue de détail, en coupe, à échelle agrandie, du détail C selon la figure 8.
  • La figure 10 est une vue de détail, en coupe, à échelle agrandie, du détail D selon la figure 7.
  • Les figures 11 et 12 représentent un couvercle muni de moyens d'étanchéité internes et externes, respectivement après insertion sur le récipient et avant.
  • La figure 13 représente en perspective un surcouvercle positionné sur le couvercle d'origine du récipient.
  • La figure 14 représente en perspective un couvercle destiné à recevoir le surcouvercle selon la figure 13.
  • La figure 15 représente en perspective éclatée un récipient muni d'un couvercle selon la figure 14 et d'un surcouvercle selon la figure 13.
This description given by way of nonlimiting example, will better understand how the invention can be made with reference to the accompanying drawings in which:
  • The figure 1 represents a front view of a container equipped with a lid, according to the invention.
  • The figure 2 is an enlarged partial sectional view of a lid on a container, according to the invention, being mounted by axial snapping.
  • The figure 3 is a view an enlarged partial sectional view of a lid on a container, according to the invention, after mounting by axial snapping.
  • The figure 4 is a front view of a container according to the invention.
  • The figure 5 is a sectional view, on an enlarged scale, of the detail G along the median axis xx 'of the figure 4 .
  • The figure 6 is a sectional view, on an enlarged scale, of the detail K according to the figure 4 .
  • The figure 7 is a sectional view of a lid according to the invention, intended to be mounted on the container of the figure 4 .
  • The figure 8 is a detail view, in section, on an enlarged scale, of the detail B according to the figure 7 .
  • The figure 9 is a detail view, in section, on an enlarged scale, of the detail C according to the figure 8 .
  • The figure 10 is a detail view, in section, on an enlarged scale, of the detail D according to the figure 7 .
  • The Figures 11 and 12 represent a lid provided with internal and external sealing means, respectively after insertion on the container and before.
  • The figure 13 represents in perspective an overcap positioned on the original lid of the container.
  • The figure 14 represents in perspective a cover for receiving the overcap according to the figure 13 .
  • The figure 15 represents in exploded perspective a container provided with a lid according to the figure 14 and overcap according to the figure 13 .

Le récipient 1 représenté sur les figures comporte un corps cylindrique 2 comprenant un fond 3 et une paroi latérale 4 à l'extérieur de laquelle, à proximité de son sommet, est réalisé un filetage de retenue 5 d'un couvercle de fermeture amovible 6 correspondant, délimité par un fond 7 et une jupe périphérique 8 élastiquement déformable. A l'intérieur de celle-ci est réalisé un filetage de retenue complémentaire 9 apte à permettre l'encliquetage du couvercle fileté 6 sur le récipient 1, par une pression initiale axiale F, après un premier remplissage d'un produit, puis le dévissage-revissage ou le dévissage-encliquetage dudit couvercle 6 par un utilisateur.The container 1 shown in the figures comprises a cylindrical body 2 comprising a bottom 3 and a side wall 4 outside which, near its top, is formed a retaining thread 5 of a corresponding removable closure cover 6 delimited by a bottom 7 and an elastically deformable peripheral skirt 8. Inside the latter is formed a complementary retaining thread 9 adapted to allow the latching of the threaded lid 6 on the container 1, by an axial initial pressure F, after a first filling of a product, and then unscrewing. -revissage or unscrewing-latching said lid 6 by a user.

Selon une caractéristique essentielle de l'invention, le filetage interne 9 du couvercle 6 est constitué d'une pluralité de microfilets, réalisés en continu ou par portions de microfilets successifs, alors que le filet externe 5 du récipient 1 est constitué par au moins un filet dont la section est en forme de couteau, réalisé en continu ou par portions de filets successifs dont la hauteur H est supérieure à celle h des microfilets du couvercle 6, dont le pas des filets externes du récipient 1 est différent du pas des microfilets internes du couvercle 6, et dont le nombre de départs des microfilets du couvercle 6 est un multiple du nombre de départs des filets externes du récipient 1, de manière à faciliter l'encliquetage de celui-ci puis sa retenue, tout en permettant ultérieurement son dévissage-vissage ou son dévissage-encliquetage.According to an essential characteristic of the invention, the internal threading 9 of the lid 6 consists of a plurality of microfilts, made continuously or in portions of successive microfilts, while the outer thread 5 of the container 1 is constituted by at least one thread whose section is in the form of a knife, made continuously or in portions of successive threads whose height H is greater than that of the microfilets of the cover 6, of which the pitch of the external threads of the container 1 is different from the pitch of the internal microfilets of the lid 6, and whose number of microfilter starts of the lid 6 is a multiple of the number of starts of the external threads of the container 1, so as to facilitate the snap of the latter and its retention, while allowing later unscrewing-screwing or unscrewing-snapping.

Selon un exemple de réalisation pratique, la hauteur H du filetage 5 du récipient 1 est égale à 1 mm, alors que la hauteur h du filetage 9 du couvercle z6 est égale à 0,5 mm.According to a practical embodiment, the height H of the thread 5 of the container 1 is equal to 1 mm, while the height h of the thread 9 of the cover z6 is equal to 0.5 mm.

Egalement selon un exemple de réalisation pratique, le pas du filetage 5 du récipient 1 et du filetage 9 du couvercle 6 est différent, la distance inter-filets P du filetage du récipient 1 est égale à 2,5 mm, et la distance inter-filets p du filetage 9 du couvercle 6 est égale à 0,5 mm, le nombre de départs filets du couvercle 6 est de 40 alors que le nombre de départs filets du récipient 1 est de 4.Also according to a practical embodiment, the pitch of the thread 5 of the container 1 and the thread 9 of the lid 6 is different, the inter-thread distance P of the thread of the container 1 is equal to 2.5 mm, and the distance between threads p of the thread 9 of the cover 6 is equal to 0.5 mm, the number of threads of the cover 6 is 40 while the number of thread starts of the container 1 is 4.

Plus particulièrement, le filet constituant le filetage 5 du récipient 1 est de section triangulaire et forme, au sommet, un angle aigu de valeur telle à lui permettre, lors d'un premier dévissage du couvercle 6, d'inciser plus profondément les microfilets 9 de celui-ci, à la manière d'un couteau, et réaliser dans ceux-ci une empreinte définitive, correspondant sensiblement au/aux filets-couteaux 5 du récipient 1.More particularly, the thread constituting the thread 5 of the container 1 is of triangular section and forms, at the top, an acute angle of such value as to allow it, during a first unscrewing of the lid 6, to cut deeper into the microfilts 9 thereof, in the manner of a knife, and to make a final impression in them, corresponding substantially to the knife threads 5 of the container 1.

En fait, concernant les microfilets 9 du couvercle 6, ceux-ci constituaient initialement des ébauches fragiles de sillons permettant l'encliquetage aisé selon une direction axiale, puis des filets définitifs correspondants à ceux du récipient 1 pour un vissage-dévissage optimum ultérieur après avoir été formé par le/les filets-couteaux 5 du récipient 1 qui ont pénétré en force les ébauches fragiles de filets 9 du couvercle 6. De plus, afin de faciliter cette pénétration en force, la matière constitutive du récipient 1 et donc du/des filets-couteaux 5 est d'une dureté ainsi que d'un module supérieurs à celle de la matière constitutive du couvercle 6 et donc des ébauches de filets 9.In fact, concerning the microfilts 9 of the cover 6, these initially constituted fragile blanks of grooves for easy snapping in an axial direction, then final nets corresponding to those of the container 1 for screwing-unscrewing optimum subsequent after was formed by the knife threads 5 of the container 1 which have penetrated in force the fragile blanks of threads 9 of the lid 6. In addition, in order to facilitate this penetration in force, the constituent material of the container 1 and thus the 5 is a hardness and a module greater than that of the material constituting the cover 6 and thus the blanks of nets 9.

Dans le cadre de l'exemple décrit ici, le récipient 1 est réalisé en polyprolpylène et le couvercle 6 est réalisé en polyéthylène haute ou moyenne densité.In the context of the example described here, the container 1 is made of polyprolpylene and the lid 6 is made of high or medium density polyethylene.

Selon le mode de réalisation représenté sur les figures, le/les filets-couteaux 5 du récipient 1 présente un angle a par rapport à la paroi verticale du récipient 1 de 55According to the embodiment shown in the figures, the knife threads 5 of the container 1 has an angle α with respect to the vertical wall of the container 1 of 55

La distance latérale d séparant la zone périphérique inférieure interne du couvercle 6 de la zone périphérique inférieure externe du récipient 1 est inférieure à la hauteur H du/des filets-couteaux 5 de ce dernier, afin d'obtenir un serrage par déformation élastique du couvercle 6 sur le récipient 1 lors du premier dévissage, et favoriser la création de l'empreinte définitive du filet 9 dans le couvercle 6.The lateral distance d separating the lower inner peripheral zone of the lid 6 from the outer lower peripheral zone of the container 1 is less than the height H of the threads / knives 5 of the latter, in order to obtain a clamping by elastic deformation of the lid 6 on the container 1 during the first unscrewing, and promote the creation of the final impression of the thread 9 in the lid 6.

Comme particulièrement bien visible sur les figures 5 et 9, les microfilets 9 du couvercle 6 sont de section également triangulaire, mais réalisés selon une orientation différente de celle du/des filets-couteaux 5 du récipient 1, en ce sens que ladite section triangulaire des microfilets 9 présente un premier côté supérieur 10 sensiblement horizontal, et donc sensiblement perpendiculaire à la paroi interne de la jupe 8 du couvercle 6, et un second côté inférieur 11 incliné formant une pente, réalisée dans le sens de l'encliquetage initial F afin de favoriser celui-ci d'une part, tout en évitant son désencliquetage par translation verticale d'autre part, par prise d'appui du côté supérieur horizontal 10 des microfilets 9 du couvercle 6 contre un côté inférieur 12 du/des filets-couteaux 5 du récipient 1.As particularly visible on figures 5 and 9 the microfilts 9 of the lid 6 are also of triangular section, but made in an orientation different from that of the / of the knife threads 5 of the container 1, in that said triangular section of the microfilts 9 has a first substantially horizontal upper side 10 , and therefore substantially perpendicular to the inner wall of the skirt 8 of the cover 6, and a second inclined lower second side 11 formed in the direction of the initial snap-fasten F to favor the latter on the one hand, all by avoiding its disengagement by vertical translation on the other hand, by taking support of the upper horizontal side 10 microfilets 9 of the cover 6 against a lower side 12 of the knife threads 5 of the container 1.

Selon l'exemple de réalisation représenté à la figure 9, le côté supérieur 10 des microfilets 9 a été réalisé selon un angle α1 de 81 °, mais il pourrait bien entendu être réalisé selon un angle de 90 °.According to the embodiment shown in figure 9 , the upper side 10 of microfilts 9 was made at an angle α1 of 81 °, but it could of course be made at an angle of 90 °.

A titre également d'exemple de réalisation, l'angle formé par le côté inférieur 11 des microfilets 9 forme un angle α2 de 50 °.Also by way of example of embodiment, the angle formed by the lower side 11 of microfilts 9 forms an angle α2 of 50 °.

Par ailleurs, comme bien visible sur les figures 1, 2, 3, 7, mais plus particulièrement 8, le couvercle 6 comporte une bande d'inviolabilité 13 s'étendant à la partie inférieure de sa jupe périphérique 8, au-delà des microfilets 9, à laquelle la bande 13 est rattachée par une zone périphérique de faible résistance 14. Celle-ci est définie par une première encoche périphérique externe 15 et une seconde encoche périphérique interne 16, l'une et l'autre étant réalisées en vis-à-vis entre la bande 13 et la jupe 8, au niveau de la zone 14. La bande d'inviolabilité comprend également une languette 23 pour initier l'arrachage de la bande d'inviolabilité. Par ailleurs, le récipient 1 comporte une butée périphérique 17 réalisée sous le/les filets-couteaux 5 dudit récipient 1 et de forme sensiblement correspondante à la seconde encoche périphérique interne 16 définissant la zone de faible résistance 14 du couvercle 6, dans laquelle elle se loge pour y être retenue, jusqu'à arrachement de ladite bande d'inviolabilité 13 en tirant sur la languette 23.Moreover, as clearly visible on Figures 1, 2, 3 , 7 , but more particularly 8, the cover 6 comprises a tamper-evident band 13 extending to the lower part of its peripheral skirt 8, beyond the microfilts 9, to which the band 13 is attached by a low-resistance peripheral zone. 14. This is defined by a first external peripheral notch 15 and a second internal peripheral notch 16, one and the other being made vis-à-vis between the band 13 and the skirt 8, at the level of the zone 14. The tamper-evident band also comprises a tongue 23 for initiating the tearing of the tamper-evident band. Furthermore, the container 1 comprises a peripheral abutment 17 made under the threads / knives 5 of said container 1 and substantially corresponding in shape to the second internal peripheral notch 16 defining the low resistance zone 14 of the lid 6, in which it housing to be retained, until tearing of said tamper band 13 by pulling on the tongue 23.

Il est à noter également que le récipient 1 comporte, sous la butée périphérique 17 destinée à coopérer avec la zone de faible résistance 14 du couvercle 6, une seconde butée périphérique 18 destinée à venir en butée sur le bord périphérique inférieur de la bande 13 du couvercle 6, afin d'empêcher la prise de la bande d'inviolabilité 13 par le dessous et son arrachage.It should also be noted that the container 1 comprises, under the peripheral stop 17 intended to cooperate with the low resistance zone 14 of the cover 6, a second peripheral stop 18 intended to abut on the lower peripheral edge of the strip 13 of the cover 6, to prevent the taking of the tamper band 13 from underneath and its tearing.

Selon une autre caractéristique de l'invention, particulièrement bien visible sur la figure 8, le couvercle 6 présente un rebord périphérique supérieur externe 19 formé par un pli définissant un logement périphérique interne 20 globalement en forme de U, destiné à l'engagement du bord supérieur du contenant 1, lors de la fermeture, ledit logement interne 20 comportant deux bourrelets périphériques 21, 22. Ceux-ci sont décalés en hauteur l'un par rapport à l'autre, l'un inférieur 21 étant réalisé sur l'une des parois du logement 20 à une distance de l'autre paroi, en vis-à-vis, supérieure à l'épaisseur e du bord du récipient 1, afin de permettre son engagement aisé. L'autre bourrelet supérieur 22 est réalisé sur l'autre paroi à une distance du premier bourrelet 21 inférieure à l'épaisseur e du bord du récipient 1, afin de créer un effet de levier et conséquemment une déformation du logement 20 en fin d'encliquetage ou en fin de vissage du couvercle. Ceci a pour effet de provoquer un serrage dudit bord supérieur du contenant 1 dans le logement 20 du couvercle 6, et donc une étanchéité interne et externe.According to another characteristic of the invention, particularly clearly visible on the figure 8 , the cover 6 has an outer upper peripheral rim 19 formed by a fold defining an inner U-shaped inner peripheral housing 20 for engaging the upper edge of the container 1 during closure, said inner housing 20 having two peripheral beads 21, 22. These are offset in height relative to each other, one lower 21 being formed on one of the walls of the housing 20 at a distance from the other wall, screwed over the thickness e of the edge of the container 1, to allow its easy engagement. The other upper bead 22 is made on the other wall at a distance from the first bead 21 less than the thickness e of the edge of the container 1, in order to create a lever effect and consequently a deformation of the housing 20 at the end of snap or end screwing the lid. This has the effect of causing a clamping of said upper edge of the container 1 in the housing 20 of the lid 6, and therefore an internal and external sealing.

La disposition décalée des deux bourrelets positionnés à deux hauteurs différentes permet d'obtenir une étanchéité interne et externe, tout en limitant les forces de frottement qui pourraient s'opposer à un dévissage ou à un revissage.The offset arrangement of the two beads positioned at two different heights provides internal and external sealing, while limiting the friction forces that could oppose unscrewing or screwing.

Selon un autre mode de réalisation, visible sur les figures 11 et 12, le couvercle 6 présente une succession de bourrelets 24, 25 (au moins un), réalisés sur le rebord périphérique supérieur externe et sur le rebord périphérique interne placés en vis-à-vis, de manière à avoir une plus petite distance entre ces bourrelets intérieurs 24 et extérieurs 25 que l'épaisseur e du bord du récipient 1, afin de permettre un serrage dudit bord supérieur du contenant 1 dans le logement 20 du couvercle 6, et donc une étanchéité interne et externe.According to another embodiment, visible on the Figures 11 and 12 , the lid 6 has a succession of beads 24, 25 (at least one), made on the outer upper peripheral rim and on the inner peripheral rim placed opposite, so as to have a smaller distance between these inner and outer beads 24 than the thickness e of the edge of the container 1, in order to allow a clamping of said upper edge of the container 1 in the housing 20 of the lid 6, and thus an internal and external seal.

Par ailleurs, comme représenté sur les figures 13, 14 et 15, un surcouvercle 26 vient se positionner sur le couvercle 6.Moreover, as represented on Figures 13, 14 and 15 , an overcap 26 is positioned on the lid 6.

Le surcouvercle 26 comporte dans sa face interne supérieure un ensemble de crénelures 27 possédant une pente d'un coté et un décroché de l'autre, sur sa face latérale supérieure des lamelles mobiles 28, et un bourrelet périphérique 29 sur sa face intérieure inférieure.The overcap 26 has in its upper internal face a set of crenellations 27 having a slope on one side and a hook of the other, on its upper lateral face of the movable slats 28, and a peripheral bead 29 on its lower inner face.

Le couvercle 6 présente sur sa face extérieure inférieure un bourrelet 30 permettant un encliquetage du surcouvercle 26 indémontable, sur sa face supérieure un ensemble de crénelures 31 possédant une pente d'un coté et un décroché de l'autre, sur sa face extérieure supérieure une succession d'encoches verticales 32 possédant une pente d'un coté et un décroché de l'autreThe cover 6 has on its lower outer face a bead 30 for snapping the overcap 26 unmountable, on its upper side a set of crenellations 31 having a slope on one side and a hook of the other, on its upper outer face a succession of vertical notches 32 having a slope on one side and a hook of the other

Le surcouvercle 26 est encliqueté sur le couvercle 6 de manière indémontable.The overcap 26 is snapped onto the cover 6 in a way that can not be dismantled.

Lors d'un mouvement de vissage de l'ensemble surcouvercle 26 / couvercle 6 sur le récipient 1, les crénelures 27 du surcouvercle 26 s'accrochent aux crénelures 31 du couvercle 6 et permettent un mouvement cohésif de l'ensemble pour un vissage.During a screwing movement of the overcap assembly 26 / cover 6 on the container 1, the crenellations 27 of the overcap 26 cling to the crenellations 31 of the cover 6 and allow a cohesive movement of the assembly for a screwing.

La forme des crénelure ne permet pas une cohésion du surcouvercle 26 et du couvercle 6 lors d'un mouvement de dévissage.The shape of the crenellations does not allow cohesion of the overcap 26 and the cover 6 during a unscrewing movement.

Pour effectuer le mouvement de dévissage, il est nécessaire que l'utilisateur exerce une pression sur les lamelles mobiles 28 du surcouvercle 26 afin qu'elles viennent en butée dans les encoches 32 du couvercle 6, et qu'elles permettent ainsi la cohésion de l'ensemble surcouvercle/couvercle.To perform the unscrewing movement, it is necessary that the user exerts pressure on the movable slats 28 of the overcap 26 so that they abut in the notches 32 of the cover 6, and that they thus allow the cohesion of the cover / cover assembly.

La dextérité nécessaire pour le dévissage et l'appui en même temps permet d'éviter que des enfants puissent ouvrir le récipient muni d'un tel système, et constitue à cet effet une fermeture childproof.The dexterity necessary for the unscrewing and the support at the same time makes it possible to prevent children from opening the container provided with such a system, and for this purpose is a childproof closure.

Claims (9)

  1. Container (1) of the type having a cylindrical body (2) comprising a base (3) and a side wall (4), on the outside of which, near to its top, there is provided a thread (5) for holding a corresponding removable closure lid (6), which is delimited by a base (7) and an elastically deformable peripheral skirt (8), inside which there is provided a complementary holding thread (9) that makes it possible for the threaded lid (6) to be snap-fastened onto the container (1), by initial axial pressure (F), after said container has been filled for the first time with a product, and then for said lid (6) to be unscrewed/screwed back on or unscrewed/snap-fastened by a user, the internal thread on the lid (6) consisting initially of a plurality of outline microthreads (9), which are produced continuously or as portions of successive microthreads, and the external thread on the container (1) consisting of at least one thread (5), which is produced continuously or as portions of successive threads having a triangular section, characterized in that the thread or threads on the container form, at the top, an acute angle having such a value as to enable them, when the lid (6) is unscrewed for the first time, and by elastic deformation of said lid (6), to cut deeply, in the manner of a cutter, into the outline microthreads (9) on said lid (6) and to produce in said outline microthreads (9) a definitive imprint which corresponds approximately to said cutter thread or threads (5) on the container (1), the height (H) of said cutter thread or threads (5) being greater than that (h) of the outline microthreads on the lid (6), and the pitch (P) of said cutter threads (5) being different from the pitch (p) of the internal outline microthreads (9) on the lid (6), and the number of starts of the microthreads (9) on the lid (6) being a multiple of the number of starts of the external cutter threads (5) on the container (1), so as to facilitate the snap-fastening of the latter and then its retention while subsequently enabling it to be unscrewed/screwed back on or unscrewed/snap-fastened.
  2. Container according to Claim 1, characterized in that the lateral distance (d) between the internal lower peripheral region of the lid (6) and the external lower peripheral region of the container (1) is less than the height (H) of the cutter thread or threads (5) on the latter, in order for the lid (6) to be tightened by elastic deformation on the container (1) when it is unscrewed for the first time, and to promote the creation of the definitive imprint of the thread (9) on the lid (6).
  3. Container according to Claim 1, characterized in that the microthreads (9) on the lid (6) also have a triangular section, but this is produced at a different orientation from that of the cutter thread or threads (5) on the container (1), such that said triangular section of the microthreads (9) has an approximately horizontal first, upper side (10) which is thus approximately perpendicular to the inner wall of the skirt (8) on the lid (6), and an inclined second, lower side (11) forming a slope, which is produced in the direction of initial snap-fastening (F) so as to promote the latter on the one hand, while avoiding the snap-release thereof by vertical translation on the other hand, by the horizontal upper side (10) of the microthreads (9) on the lid (6) bearing against a lower side (12) of the cutter thread or threads (5) on the container (1).
  4. Container according to one of Claims 1 to 3, characterized in that the lid (6) has a tamperproofing strip (13) extending on the lower part of its peripheral skirt (8), beyond the microthreads (9), the strip (13) being connected to said skirt (8) by a low-resistance peripheral region (14) which is defined by a first, external peripheral notch (15) and a second, internal peripheral notch (16), both notches being produced opposite one another between the strip (13) and the skirt (8), in the region (14), and in that the container (1) has a peripheral stop (17) which is produced under the cutter threads (5) on said container (1) and has a form corresponding approximately to the second, internal peripheral notch (16) defining the low-resistance region (14) on the lid (6), said stop (17) being housed in said notch (16) in order to be retained there until said tamperproofing strip (13) is torn off by pulling on a tab (23).
  5. Container according to one of Claims 1 to 4, characterized in that the constituent material of the container (1), and thus of the cutter thread or threads (5), has a hardness and a modulus greater than those of the constituent material of the lid (6), and thus of the outline threads (9), so as to enable the cutter thread or threads to penetrate the fragile outlines of the grooves in the lid (6).
  6. Container according to one of Claims 1 to 5, characterized in that the constituent material of the container (1) is polypropylene.
  7. Container according to one of Claims 1 to 6, characterized in that the constituent material of the lid (6) is polyethylene, preferably high- or medium-density polyethylene.
  8. Container according to one of Claims 1 to 7, characterized in that the lid (6) has an external upper peripheral lip (19) that is formed by a fold defining an internal peripheral housing (20) that has an overall U shape and is intended for the insertion of the upper rim of the container (1) during closure, said internal housing (20) having two peripheral beads (21, 22) that are offset in height with respect to one another, the lower bead (21) being produced on one of the walls of the housing (20) at a distance from the other, opposing wall, which is greater than the thickness (e) of the rim of the container (1) in order that it can be easily inserted, and the other, upper bead (22) being produced on the other wall at a distance from the first bead (21) that is less than the thickness (e) of the rim of the container (1), so as to create a lever effect and thus a deformation of the housing (20) at the end of the snap-fastening or at the end of the screwing of the lid, the effect of this being to tighten said upper rim of the container (1) in the housing (20) in the lid (6), and thus to bring about internal and external sealing.
  9. Container according to one of Claims 1 to 7, characterized in that the lid (6) has a succession of beads (24, 25) (at least one) which are produced on the external upper peripheral lip and on the opposite internal peripheral lip so as to form a housing that has an overall U shape and is intended for the insertion of the upper rim of the container (1) during closure, said internal housing having a plurality of peripheral beads (24, 25) (at least one), the distance between these inner beads (24) and outer beads (25) being less than the thickness (e) of the rim of the container (1) in order to enable the tightening of said upper rim of the container (1) in the housing (20) in the lid (6), and thus to bring about internal and external sealing.
EP06764665A 2005-05-27 2006-05-22 Container comprising a screw-on/screw-off locking cover Active EP1919790B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0505354A FR2886277B1 (en) 2005-05-27 2005-05-27 CONTAINER PROVIDED WITH A DISPLACABLE AND RELEVANT CLOSURE TYPE COVER
PCT/FR2006/001172 WO2006125906A1 (en) 2005-05-27 2006-05-22 Container comprising a screw-on/screw-off locking cover

Publications (2)

Publication Number Publication Date
EP1919790A1 EP1919790A1 (en) 2008-05-14
EP1919790B1 true EP1919790B1 (en) 2011-08-03

Family

ID=35889975

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06764665A Active EP1919790B1 (en) 2005-05-27 2006-05-22 Container comprising a screw-on/screw-off locking cover

Country Status (5)

Country Link
EP (1) EP1919790B1 (en)
AT (1) ATE518773T1 (en)
ES (1) ES2367712T3 (en)
FR (1) FR2886277B1 (en)
WO (1) WO2006125906A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI448405B (en) * 2012-09-11 2014-08-11

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8526790U1 (en) * 1985-09-19 1986-10-23 Kittel, Anna, 7526 Ubstadt-Weiher Container with receptacle and closure part
US6105802A (en) * 1998-06-22 2000-08-22 Clayton Corporation Push-on closure container assembly
WO2005037677A1 (en) * 2003-10-13 2005-04-28 Frank Schellenbach Closure for containers and method for the production thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI448405B (en) * 2012-09-11 2014-08-11

Also Published As

Publication number Publication date
WO2006125906A1 (en) 2006-11-30
FR2886277A1 (en) 2006-12-01
ATE518773T1 (en) 2011-08-15
ES2367712T3 (en) 2011-11-07
FR2886277B1 (en) 2007-07-13
EP1919790A1 (en) 2008-05-14

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