EP0636551A1 - Container closure with safety ring - Google Patents

Container closure with safety ring Download PDF

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Publication number
EP0636551A1
EP0636551A1 EP93111110A EP93111110A EP0636551A1 EP 0636551 A1 EP0636551 A1 EP 0636551A1 EP 93111110 A EP93111110 A EP 93111110A EP 93111110 A EP93111110 A EP 93111110A EP 0636551 A1 EP0636551 A1 EP 0636551A1
Authority
EP
European Patent Office
Prior art keywords
cover
container
safety ring
tab
skirt
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP93111110A
Other languages
German (de)
French (fr)
Other versions
EP0636551B1 (en
Inventor
Michel Delatour
Jean Servaux
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Societe des Produits Nestle SA
Nestle SA
Original Assignee
Societe des Produits Nestle SA
Nestle SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to EP93111110A priority Critical patent/EP0636551B1/en
Priority to DE69302577T priority patent/DE69302577T2/en
Priority to DK93111110.8T priority patent/DK0636551T3/en
Priority to ES93111110T priority patent/ES2088806T3/en
Priority to AT93111110T priority patent/ATE137715T1/en
Application filed by Societe des Produits Nestle SA, Nestle SA filed Critical Societe des Produits Nestle SA
Priority to AU64739/94A priority patent/AU685101B2/en
Priority to US08/265,323 priority patent/US5667087A/en
Priority to CA002127007A priority patent/CA2127007A1/en
Publication of EP0636551A1 publication Critical patent/EP0636551A1/en
Application granted granted Critical
Publication of EP0636551B1 publication Critical patent/EP0636551B1/en
Priority to GR960402018T priority patent/GR3020660T3/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/32—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
    • B65D41/3423—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with flexible tabs, or elements rotated from a non-engaging to an engaging position, formed on the tamper element or in the closure skirt
    • B65D41/3438—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with flexible tabs, or elements rotated from a non-engaging to an engaging position, formed on the tamper element or in the closure skirt the tamper element being formed separately but connected to the closure
    • 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
    • B65D41/48—Snap-on caps or cap-like covers non-metallic, e.g. made of paper or plastics

Definitions

  • the invention relates to a threaded closure for a container, comprising a safety ring secured to a cover that can be fixed to the neck of the container, said cover comprising a bottom and a side skirt, the internal wall of which includes ramps forming a thread and intended to cooperate with corresponding closing ramps mounted on the external part of the container neck.
  • the invention also relates to a snap-on closure for a container and to the safety ring used in the two above-mentioned closures.
  • Patent WO 91/01925 relates to a wide-neck container closure comprising a cover with safety ring, said closure being mounted on the neck of said container.
  • the principle of this closure and inviolability system is based on the fact that when the container is opened, the widening of the skirt of the closure cover deforms the safety ring, integral with said skirt, which thus breaks following breaking points. There is thus a simple and sure way to show, if a container has been opened.
  • the disadvantage of this system is that it is intended for square jars, in which the breaking of the safety ring takes place due to the deformation of the skirt of the cover. If we consider a round jar, there has no unlocking bosses on the neck of the container to deform the skirt of the cover. A solution must therefore be found based on another principle.
  • the object of the present invention is the development of a system making it possible to visually demonstrate whether a container with a screwable or snap-on lid has been opened.
  • the invention relates to a threaded closure for a container according to the preamble of claim 1, in which the safety ring has a lower edge pressing against the lower edge of the cover skirt and comprising at least one locking tab and at least two latching tabs, the locking tab pressing in the closed position of the cover against a rim of the container neck located under the closing ramps and the latching tab being locked on a circular groove provided in the lower inner part of the skirt of the cover.
  • the cover is preferably round cooperating with a round neck.
  • the safety ring includes a collar secured to the edge and matching the shape of the lower outer wall of the skirt of the cover. This flange makes the ring more solid during handling.
  • the safety ring is a single piece and can be manufactured by injection molding in a brittle material which is preferably based on polystyrene.
  • the cover is made separately from the safety ring.
  • Said ring has such a configuration that the rings can be stacked, which saves space. These rings can be delivered alone or already mounted on the cover. A recess must be provided inside the skirt to provide sufficient space for the thickness of the locking and latching tabs when the lid is screwed onto the container.
  • the safety ring breaks and the fragments leave well towards the outside. This has the advantage that the ring, after first opening, is no longer on the container, which gives a conventional packaging.
  • the container is preferably made of glass with different neck diameters.
  • the cover is a conventional cover comprising for example four locking ramps, just as there are then provided on the rim of the jar the four corresponding ramps.
  • This cover is preferably made of polyethylene or polypropylene.
  • the inner part of the bottom of the cover has either a cardboard box, or a foam cardboard (expanded polyethylene) weldable by induction, or a sealing ring deposited in the pasty state and which polymerizes in the open air, or a barrier foam.
  • the locking and latching tabs are integral with the lower edge of the safety ring, these tabs projecting diagonally towards the inside of the lid and towards the top of the container.
  • the aforementioned tabs are tabs with recesses for reasons of elasticity, the locking tab being normally longer than the latching tab.
  • the length of the locking tab depends on the distance from the bottom of the skirt of the lid to the rim of the container neck.
  • the number of locking and latching tabs is decisive in ensuring good breakage of the safety ring. It is preferable to operate each time with three of these legs. It is understood that these tabs are normally distributed around the periphery of the ring in an alternative manner, that is to say a locking tab, a latching tab, a locking tab and so on. This arrangement is not, however, essential to properly have a breaking tension on the ring. If the tabs are distributed evenly, with three locking tabs, these make an angle between them of 120 ° in the plane, the same for the snap tabs.
  • ring areas of weakness can be formed by notches which can be given either the shape of U, or the shape of V, the main being to create around the circumference of the ring zones of lesser thickness or less width with zones of preferential breaks.
  • the safety ring comprises between each locking and latching tab at least one notch forming a weakening zone for said ring, the locking tab then being formed by a tongue.
  • each locking tab is formed of two tabs, a weakening zone being provided between said tabs.
  • the latching tabs each have a retaining notch which engages on the circular groove in the interior lower part of the skirt of the cover. This guarantees total locking of the safety ring on the cover.
  • the invention also relates to a snap-on closure for a container comprising a safety ring secured to a cover that can be fixed to the neck of the container, said cover comprising a bottom and a side skirt, the inner wall of which comprises hooking means provided for cooperate with a rim on the inside of the container neck, in which the safety ring has a lower edge pressing against the lower edge of the skirt of the cover and comprising at least one locking tab and at least two tabs latching, the locking tab pressing in the closed position of the lid against the rim on the outside of the container neck and the latching lug being locked on a notch provided in the lower inner part of the skirt of the lid.
  • there is no flange because the ring must not be deformed when positioning the lid on the container.
  • the safety ring preferably has two locking tabs and two tabs latching.
  • the cover is advantageously square in shape and the neck of the container is round.
  • the invention finally relates to the safety ring used for the closure described above, comprising an edge comprising at least one locking tab and at least two snap tabs. All that has been described above for this ring remains valid, in particular it may include a collar secured to the edge.
  • the safety ring (1) has a collar (2) and a lower edge (3).
  • the locking tabs (4) and the latching tabs (5) are integral with the lower edge. These tabs each have recesses respectively (6) and (7) so as to give them good elasticity.
  • the weakened areas (8) are arranged between the locking and latching tabs.
  • the ring is made of polystyrene.
  • Fig. 2 shows a partial section of the container lid.
  • This cover (9) has a bottom (10) and a side skirt (11).
  • the internal part of the bottom of the cover has an area (12) for putting a cardboard there (not shown). This would be held in place by the circular notch (13).
  • the internal part of the side skirt has closing ramps (14) and a circular groove (15).
  • FIGS. 3 and 4 clearly show the combination of the elements of FIGS. 1 and 2.
  • the container to be closed (16) has a neck (17) on which the cover (9) secured to the safety ring (1) is screwed.
  • the closing ramps (14) of the cover cooperate with corresponding closing ramps (18) of the neck of the container (16).
  • the cardboard (19) in the lid presses against the upper edge of the container neck.
  • the safety ring (1) is locked on the skirt of the cover by means of the latching tabs (5) comprising retaining tabs (20) which engage on the circular groove (15) of the skirt of the cover.
  • the locking tabs (4) of the ring abut against a flange (21) of the neck of the container.
  • notches (22) are provided: in the present case six notches giving these places zones of reduced thickness of the safety ring. The more you lift or unscrew the cover, the more tension increases to break the ring in these weakened areas. In this case, we made notches in the shape of a U. We thus have a system making it possible to say in a sure way if the container has been opened: indeed, if really the ring is broken, there will frequently be a fragment ring that will have disappeared and the consumer will instantly judge if the container has been opened.
  • the safety ring (23) of FIG. 6 differs from that of the Fig. 1 only in the locking tabs (24) made in this case of two identical tabs (25) and in that the weakening zone (26) is located between these two tabs and no longer between the locking tabs and snap-in.
  • the other elements have been given the same reference numbers.
  • the safety ring will undergo the same tensions for the same reasons as above, but the ring will break according to the 3 weakening points (26).
  • Fig. 7 differs from FIG. 6 simply in that the safety ring does not include a collar (22). But the breaking of said ring will be done as for the ring of FIG. 6 in (26).
  • Fig. 8 shows a safety ring (30) for snap-on cover. It includes, as for the screwable covers, a lower edge (31) carrying locking tabs (32) made up of two identical tabs (33) and snap-on tabs (34). The weakening zone (35) is located between the two aforementioned tabs.
  • the only difference with the previous figure is in the geometric shape of the safety ring: for the screwable cover, it is round and for the snap-on cover it is square.
  • the advantage of the closure system according to the invention is that it makes it possible to keep the containers and the lids already existing. It is simply necessary to consider the manufacture of the safety ring which is then placed on the cover. The container itself being also filled and sealed, it only remains to cap said container of the closure system according to the invention.
  • This device finds a particularly interesting application on containers containing soluble coffee, milk powder and other food products.

Abstract

The invention relates to a threaded closure for a container, including a safety ring (1) fastened to a lid (9) which can be fixed to the neck of the container, the said lid comprising a bottom and a side skirt, the inner wall of which includes closure ramps (14) which form threading and are provided in order to interact with corresponding closure ramps (18) mounted on the outer part of the neck of the container, in which the safety ring includes an internal rim bearing against the lower edge of the skirt of the lid and including at least one locking tab (4) and at least two snap-fastening tabs (5), the locking tab (4) bearing, in the closed position of the lid, against a rim of the neck of the container, located under the closure ramps and the snap-fastening tab being locked in a circular groove provided in the lower inner part of the skirt of the lid. <IMAGE>

Description

L'invention concerne une fermeture filetée pour récipient, comportant un anneau de sûreté solidaire d'un couvercle pouvant être fixé sur le col du récipient, ledit couvercle comprenant un fond et une jupe latérale dont la paroi interne comporte des rampes de fermeture formant filetage et prévues pour coopérer avec des rampes de fermeture correspondantes montées sur la partie externe du col du récipient. L'invention concerne également une fermeture encliquetable pour récipient et l'anneau de sûreté utilisé dans les deux fermetures précitées.The invention relates to a threaded closure for a container, comprising a safety ring secured to a cover that can be fixed to the neck of the container, said cover comprising a bottom and a side skirt, the internal wall of which includes ramps forming a thread and intended to cooperate with corresponding closing ramps mounted on the external part of the container neck. The invention also relates to a snap-on closure for a container and to the safety ring used in the two above-mentioned closures.

On connaît déjà des systèmes permettant de visualiser si un emballage a déjà été ouvert. Le brevet WO 91/01925 concerne une fermeture de récipient à col large comportant un couvercle avec anneau de sûreté, ladite fermeture étant montée sur le col dudit récipient. Le principe de ce système de fermeture et d'inviolabilité est basé sur le fait que lors de l'ouverture du récipient, l'élargissement de la jupe du couvercle de fermeture déforme l'anneau de sûreté, solidaire de ladite jupe, qui ainsi se casse suivant des points de rupture. On a ainsi un moyen simple et sûr de mettre en évidence, si un récipient a été ouvert. L'inconvénient de ce système est qu'il est prévu pour des bocaux carrés, dans lesquels la cassure de l'anneau de sûreté a lieu grâce à la déformation de la jupe du couvercle.Si on envisage un bocal rond, il n'y a pas sur le col du récipient de bossages de déverrouillage pour déformer la jupe du couvercle. Il faut donc trouver une solution basée sur un autre principe.Systems are already known which make it possible to visualize whether a package has already been opened. Patent WO 91/01925 relates to a wide-neck container closure comprising a cover with safety ring, said closure being mounted on the neck of said container. The principle of this closure and inviolability system is based on the fact that when the container is opened, the widening of the skirt of the closure cover deforms the safety ring, integral with said skirt, which thus breaks following breaking points. There is thus a simple and sure way to show, if a container has been opened. The disadvantage of this system is that it is intended for square jars, in which the breaking of the safety ring takes place due to the deformation of the skirt of the cover. If we consider a round jar, there has no unlocking bosses on the neck of the container to deform the skirt of the cover. A solution must therefore be found based on another principle.

Le but de la présente invention est la mise au point d'un système permettant de mettre en évidence visuellement si un récipient avec couvercle vissable ou encliquetable a été ouvert.The object of the present invention is the development of a system making it possible to visually demonstrate whether a container with a screwable or snap-on lid has been opened.

L'invention concerne une fermeture filetée pour récipient selon le préambule de la revendication 1, dans laquelle l'anneau de sûreté comporte une bordure inférieure appuyant contre l'arête inférieure de la jupe du couvercle et comportant au moins une patte de verrouillage et au moins deux pattes d'encliquetage, la patte de verrouillage appuyant en position fermée du couvercle contre un rebord du col du récipient situé sous les rampes de fermeture et la patte d'encliquetage étant verrouillée sur une rainure circulaire prévue dans la partie intérieure inférieure de la jupe du couvercle.The invention relates to a threaded closure for a container according to the preamble of claim 1, in which the safety ring has a lower edge pressing against the lower edge of the cover skirt and comprising at least one locking tab and at least two latching tabs, the locking tab pressing in the closed position of the cover against a rim of the container neck located under the closing ramps and the latching tab being locked on a circular groove provided in the lower inner part of the skirt of the cover.

Dans cette forme de réalisation, le couvercle est de préférence rond coopérant avec un col rond.In this embodiment, the cover is preferably round cooperating with a round neck.

Il n'y a pas dans ce cas, lors de l'ouverture du couvercle de déformation de la jupe dudit couvercle. Le principe est basé sur la translation verticale de ce couvercle. Lorsqu'on ouvre le récipient, la patte de verrouillage appuyant contre le rebord du col du récipient qui lui est fixe, bute contre le rebord précité. D'autre part, comme la patte d'encliquetage est verrouillée sur le bas de la jupe du couvercle elle monte avec le couvercle, cette translation verticale du couvercle va créer une tension entre les pattes de verrouillage et d'encliquetage, menant ainsi à une cassure de l'anneau de sûreté, si on ouvre le couvercle du récipient.In this case, there is no deformation of the skirt of said cover when the cover is opened. The principle is based on the vertical translation of this cover. When the container is opened, the locking tab pressing against the rim of the neck of the container which is fixed to it, abuts against the abovementioned rim. On the other hand, as the latching tab is locked on the bottom of the cover skirt, it rises with the cover, this vertical translation of the cover will create a tension between the locking and latching tabs, thus leading to a breaking of the safety ring, if the container lid is opened.

Dans une forme de réalisation particulière, l'anneau de sûreté comporte une collerette solidaire de la bordure et épousant la forme de la paroi extérieure inférieure de la jupe du couvercle. Cette collerette permet de rendre l'anneau plus solide lors de manipulations.In a particular embodiment, the safety ring includes a collar secured to the edge and matching the shape of the lower outer wall of the skirt of the cover. This flange makes the ring more solid during handling.

L'anneau de sûreté est une seule pièce et peut être fabriqué par moulage par injection dans un matériau cassant qui est de préférence à base de polystyrène.The safety ring is a single piece and can be manufactured by injection molding in a brittle material which is preferably based on polystyrene.

Le couvercle est fabriqué séparément de l'anneau de sûreté. Ledit anneau a une telle configuration qu'on peut empiler les anneaux, ce qui permet un gain de place. On peut livrer ces anneaux seuls ou déjà montés sur le couvercle. Il faut prévoir un décrochement à l'intérieur de la jupe pour ménager un espace suffisant à l'épaisseur des pattes de verrouillage et d'encliquetage au moment du vissage du couvercle sur le récipient.The cover is made separately from the safety ring. Said ring has such a configuration that the rings can be stacked, which saves space. These rings can be delivered alone or already mounted on the cover. A recess must be provided inside the skirt to provide sufficient space for the thickness of the locking and latching tabs when the lid is screwed onto the container.

Lorsqu'on ouvre le récipient, l'anneau de sûreté se casse et les fragments partent bien vers l'extérieur. On a ainsi l'avantage que l'anneau, après première ouverture, n'est plus sur le récipient, ce qui donne un emballage classique.When the container is opened, the safety ring breaks and the fragments leave well towards the outside. This has the advantage that the ring, after first opening, is no longer on the container, which gives a conventional packaging.

Le récipient est de préférence en verre avec différents diamètres de col. Le couvercle est un couvercle classique comportant par exemple quatre rampes de verrouillage, de même qu'on prévoit alors sur le rebord du bocal les quatre rampes correspondantes. Ce couvercle est de préférence en polyéthylène ou polypropylène. La partie intérieure du fond du couvercle comporte soit une cartonnette, soit une cartonnette mousse (polyéthylène expansé) soudable par induction, soit un anneau d'étanchéité déposé à l'état pâteux et qui polymérise à l'air libre, soit une mousse barrière.The container is preferably made of glass with different neck diameters. The cover is a conventional cover comprising for example four locking ramps, just as there are then provided on the rim of the jar the four corresponding ramps. This cover is preferably made of polyethylene or polypropylene. The inner part of the bottom of the cover has either a cardboard box, or a foam cardboard (expanded polyethylene) weldable by induction, or a sealing ring deposited in the pasty state and which polymerizes in the open air, or a barrier foam.

Si on coupe verticalement l'anneau de sûreté avec collerette, on a un L, la partie verticale du L étant la collerette dudit anneau qui épouse la forme de la paroi extérieure inférieure de la jupe du couvercle.If the safety ring with a collar is cut vertically, there is an L, the vertical part of the L being the collar of said ring which follows the shape of the lower outer wall of the skirt of the cover.

Les pattes de verrouillage et d'encliquetage sont solidaires de la bordure inférieure de l'anneau de sûreté, ces pattes faisant saillie en biais vers l'intérieur du couvercle et vers le haut du récipient.The locking and latching tabs are integral with the lower edge of the safety ring, these tabs projecting diagonally towards the inside of the lid and towards the top of the container.

Les pattes précitées sont des languettes avec des évidements pour des raisons d'élasticité, la languette de verrouillage étant normalement plus longue que la languette d'encliquetage. La longueur de la languette de verrouillage dépend de la distance qui sépare le bas de la jupe du couvercle du rebord du col du récipient.The aforementioned tabs are tabs with recesses for reasons of elasticity, the locking tab being normally longer than the latching tab. The length of the locking tab depends on the distance from the bottom of the skirt of the lid to the rim of the container neck.

Le nombre des pattes de verrouillage et d'encliquetage est déterminant pour assurer une bonne cassure de l'anneau de sûreté. On opère de préférence chaque fois avec trois de ces pattes. Il est bien entendu que ces pattes sont normalement réparties sur le pourtour de l'anneau de manière alternative, c'est-à-dire une patte de verrouillage, une patte d'encliquetage, une de verrouillage et ainsi de suite. Cet arrangement n'est cependant pas indispensable pour bien avoir une tension de rupture sur l'anneau. Si les pattes sont réparties uniformément, avec trois pattes de verrouillage, celles-ci font dans le plan un angle entre elles de 120°, de même pour les pattes d'encliquetage.The number of locking and latching tabs is decisive in ensuring good breakage of the safety ring. It is preferable to operate each time with three of these legs. It is understood that these tabs are normally distributed around the periphery of the ring in an alternative manner, that is to say a locking tab, a latching tab, a locking tab and so on. This arrangement is not, however, essential to properly have a breaking tension on the ring. If the tabs are distributed evenly, with three locking tabs, these make an angle between them of 120 ° in the plane, the same for the snap tabs.

On peut aussi avoir des configurations avec trois pattes de verrouillage et quatre pattes d'encliquetage, ce qui permet de faciliter encore la cassure de l'anneau lors de l'ouverture du récipient.It is also possible to have configurations with three locking tabs and four latching tabs, which further facilitates breaking of the ring when the container is opened.

Pour bien assurer une cassure sur l'anneau entre les pattes précitées, il est préférable de prévoir sur ledit anneau des zones d'affaiblissement. Celles-ci peuvent être formées par des entailles auxquelles on peut donner soit la forme de U, soit la forme de V, le principal étant de créer sur le pourtour de l'anneau des zones de moindre épaisseur ou de moindre largeur avec des zones de cassure préférentielles.To ensure a break on the ring between the aforementioned legs, it is preferable to provide on said ring areas of weakness. These can be formed by notches which can be given either the shape of U, or the shape of V, the main being to create around the circumference of the ring zones of lesser thickness or less width with zones of preferential breaks.

Selon une première forme de réalisation l'anneau de sûreté comporte entre chaque patte de verouillage et d'encliquetage au moins une entaille formant zone d'affaiblissement pour ledit anneau, la patte de verrouillage étant alors formée d'une languette.According to a first embodiment the safety ring comprises between each locking and latching tab at least one notch forming a weakening zone for said ring, the locking tab then being formed by a tongue.

Selon une seconde forme de réalisation chaque patte de verrouillage est formée de deux languettes, une zone d'affaiblissement étant prévue entre lesdites languettes.According to a second embodiment, each locking tab is formed of two tabs, a weakening zone being provided between said tabs.

Les pattes d'encliquetage comportent chacune un cran de retenue qui s'engage sur la rainure circulaire dans la partie inférieure intérieure de la jupe du couvercle. On garantit ainsi un total verrouillage de l'anneau de sûreté sur le couvercle.The latching tabs each have a retaining notch which engages on the circular groove in the interior lower part of the skirt of the cover. This guarantees total locking of the safety ring on the cover.

L'invention concerne également une fermeture encliquetable pour récipient comportant un anneau de sûreté solidaire d'un couvercle pouvant être fixé sur le col du récipient, ledit couvercle comprenant un fond et une jupe latérale dont la paroi intérieure comporte des moyens d'accrochage prévus pour coopérer avec un rebord sur l'intérieur du col du récipient, dans laquelle l'anneau de sûreté comporte une bordure inférieure appuyant contre l'arête inférieure de la jupe du couvercle et comportant au moins une patte de verrouillage et au moins deux pattes d'encliquetage, la patte de verrouillage appuyant en position fermée du couvercle contre le rebord sur l'extérieur du col du récipient et la patte d'encliquetage étant verrouillée sur un crantage prévu dans la partie intérieure inférieure de la jupe du couvercle. Dans cette forme de réalisation, il n'y a pas de collerette, car il ne faut pas que l'anneau se déforme lors du positionnement du couvercle sur le récipient. Par contre, on peut obtenir une tension sur l'anneau, lors de la translation vers le haut du couvercle au moment de l'ouverture. L'anneau de sûreté présente de préférence deux pattes de verrouillage et deux pattes d'encliquetage. Le couvercle est avantageusement de forme carrée et le col du récipient est rond.The invention also relates to a snap-on closure for a container comprising a safety ring secured to a cover that can be fixed to the neck of the container, said cover comprising a bottom and a side skirt, the inner wall of which comprises hooking means provided for cooperate with a rim on the inside of the container neck, in which the safety ring has a lower edge pressing against the lower edge of the skirt of the cover and comprising at least one locking tab and at least two tabs latching, the locking tab pressing in the closed position of the lid against the rim on the outside of the container neck and the latching lug being locked on a notch provided in the lower inner part of the skirt of the lid. In this embodiment, there is no flange, because the ring must not be deformed when positioning the lid on the container. On the other hand, one can obtain a tension on the ring, during the translation towards the top of the cover at the time of the opening. The safety ring preferably has two locking tabs and two tabs latching. The cover is advantageously square in shape and the neck of the container is round.

L'invention concerne finalement l'anneau de sûreté utilisé pour la fermeture décrite ci-dessus, comprenant une bordure comportant au moins une patte de verrouillage et au moins deux pattes d'encliquetage. Tout ce qui a été décrit ci-dessus pour cet anneau reste valable, notamment il peut comprendre une collerette solidaire de la bordure.The invention finally relates to the safety ring used for the closure described above, comprising an edge comprising at least one locking tab and at least two snap tabs. All that has been described above for this ring remains valid, in particular it may include a collar secured to the edge.

La suite de la description est faite en référence aux dessins sur lesquels:

  • Fig. 1
    est une vue de dessus de l'anneau de sûreté,
  • Fig. 2
    est une coupe partielle du couvercle vissable pour la fermeture du récipient,
  • Fig. 3
    est une représentation schématique de la fermeture selon l'invention disposée sur un récipient,
  • Fig. 4
    est une coupe de détail de la Fig. 3
  • Fig. 5
    est une coupe de l'anneau de sûreté selon la ligne 5-5 de la Fig. 1 montrant la zone d'affaiblissement.
  • Fig. 6
    est une vue de dessus de l'anneau de sûreté dans une seconde forme de réalisation et
  • Fig. 7
    est une vue de dessus de l'anneau de sûreté dans une troisième forme de réalisation.
  • Fig. 8
    est une vue de dessus de l'anneau de sûreté pour récipient avec couvercle encliquetable.
The following description is made with reference to the drawings in which:
  • Fig. 1
    is a top view of the safety ring,
  • Fig. 2
    is a partial section of the screw-on lid for closing the container,
  • Fig. 3
    is a schematic representation of the closure according to the invention arranged on a container,
  • Fig. 4
    is a detail section of FIG. 3
  • Fig. 5
    is a section of the safety ring along line 5-5 of Fig. 1 showing the weakening zone.
  • Fig. 6
    is a top view of the safety ring in a second embodiment and
  • Fig. 7
    is a top view of the safety ring in a third embodiment.
  • Fig. 8
    is a top view of the container safety ring with snap-on lid.

L'anneau de sûreté (1) comporte une collerette (2) et une bordure inférieure (3). Les pattes de verrouillage (4) et les pattes d'encliquetage (5) sont solidaires de la bordure inférieure. Ces pattes comportent chacune des évidements respectivement (6) et (7) de manière à leur conférer une bonne élasticité. Les zones d'affaiblissement (8) sont disposées entre les pattes de verrouillage et d'encliquetage. L'anneau est en polystyrène. La Fig. 2 montre une coupe partielle du couvercle de récipient. Ce couvercle (9) comporte un fond (10) et une jupe latérale (11). La partie interne du fond du couvercle comporte une zone (12) pour y mettre une cartonnette (non représentée). Celle-ci serait maintenue en place grâce à l'encoche circulaire (13). La partie interne de la jupe latérale comporte des rampes de fermeture (14) et une rainure circulaire (15).The safety ring (1) has a collar (2) and a lower edge (3). The locking tabs (4) and the latching tabs (5) are integral with the lower edge. These tabs each have recesses respectively (6) and (7) so as to give them good elasticity. The weakened areas (8) are arranged between the locking and latching tabs. The ring is made of polystyrene. Fig. 2 shows a partial section of the container lid. This cover (9) has a bottom (10) and a side skirt (11). The internal part of the bottom of the cover has an area (12) for putting a cardboard there (not shown). This would be held in place by the circular notch (13). The internal part of the side skirt has closing ramps (14) and a circular groove (15).

Les Fig. 3 et 4 montrent bien la combinaison des éléments des Fig. 1 et 2. le récipient à fermer (16) comporte un col (17) sur lequel on visse le couvercle (9) solidaire de l'anneau de sûreté (1). En position fermée du récipient, les rampes de fermeture (14) du couvercle coopèrent avec des rampes de fermeture correspondantes (18) du col du récipient (16). La cartonnette (19) dans le couvercle appuie contre le rebord supérieur du col du récipient. L'anneau de sûreté (1) est verrouillé sur la jupe du couvercle grâce aux pattes d'encliquetage (5) comportant des languettes de retenue (20) qui s'engagent sur la rainure circulaire (15) de la jupe du couvercle. Les pattes de verrouillage (4) de l'anneau viennent buter contre un rebord (21) du col du récipient.Figs. 3 and 4 clearly show the combination of the elements of FIGS. 1 and 2. the container to be closed (16) has a neck (17) on which the cover (9) secured to the safety ring (1) is screwed. In the closed position of the container, the closing ramps (14) of the cover cooperate with corresponding closing ramps (18) of the neck of the container (16). The cardboard (19) in the lid presses against the upper edge of the container neck. The safety ring (1) is locked on the skirt of the cover by means of the latching tabs (5) comprising retaining tabs (20) which engage on the circular groove (15) of the skirt of the cover. The locking tabs (4) of the ring abut against a flange (21) of the neck of the container.

Lorsqu'on ouvre le récipient, on dévisse le couvercle (9) qui opère une translation vers le haut. La patte d'encliquetage (5) étant totalement verrouillée sur la jupe du couvercle et la patte de verrouillage (4) poussant contre le rebord (21), il y a création d'une tension sur le pourtour de l'anneau de sûreté entre chaque patte de verrouillage et d'encliquetage: par exemple avec l'anneau selon la Fig. 1 on aura six zones de tension.When the container is opened, the cover (9) is unscrewed, which translates upwards. The latching tab (5) being completely locked on the skirt of the cover and the locking tab (4) pushing against the flange (21), there is creation of a tension on the periphery of the safety ring between each locking and latching tab: for example with the ring according to FIG. 1 there will be six areas of tension.

Dans ces zones, par exemple au milieu de ces zones on prévoit des encoches (22): dans le cas présent six encoches donnant à ces endroits des zones de moindre épaisseur de l'anneau de sûreté. Plus on soulève ou dévisse le couvercle, plus la tension augmente pour arriver à la cassure de l'anneau dans ces zones affaiblies. Dans le cas présent, on a fait des encoches en forme de U. On a ainsi un système permettant de dire de manière sûr si le récipient a été ouvert: en effet, si vraiment l'anneau est cassé, il y aura fréquemment un fragment d'anneau qui aura disparu et le consommateur jugera instantanément si le récipient a été ouvert.In these zones, for example in the middle of these zones, notches (22) are provided: in the present case six notches giving these places zones of reduced thickness of the safety ring. The more you lift or unscrew the cover, the more tension increases to break the ring in these weakened areas. In this case, we made notches in the shape of a U. We thus have a system making it possible to say in a sure way if the container has been opened: indeed, if really the ring is broken, there will frequently be a fragment ring that will have disappeared and the consumer will instantly judge if the container has been opened.

L'anneau de sûreté (23) de la Fig. 6 diffère de celui de la Fig. 1 seulement dans les pattes de verrouillage (24) constituées dans ce cas de deux languettes identiques (25) et en ce que la zone d'affaiblissement (26) se situe entre ces deux languettes et non plus entre les pattes de verrouillage et d'encliquetage. Les autres éléments ont été affectés des mêmes numéros de référence. L'anneau de sûreté subira les mêmes tensions pour les mêmes raisons que ci-dessus, mais l'anneau cassera selon les 3 points d'affaiblissement (26).The safety ring (23) of FIG. 6 differs from that of the Fig. 1 only in the locking tabs (24) made in this case of two identical tabs (25) and in that the weakening zone (26) is located between these two tabs and no longer between the locking tabs and snap-in. The other elements have been given the same reference numbers. The safety ring will undergo the same tensions for the same reasons as above, but the ring will break according to the 3 weakening points (26).

La Fig. 7 diffère de la Fig. 6 simplement en ce que l'anneau de sûreté ne comporte pas de collerette (22). Mais la cassure dudit anneau se fera comme pour l'anneau de la Fig. 6 en (26).Fig. 7 differs from FIG. 6 simply in that the safety ring does not include a collar (22). But the breaking of said ring will be done as for the ring of FIG. 6 in (26).

La Fig. 8 représente un anneau de sûreté (30) pour couvercle encliquetable. Il comprend comme pour les couvercles vissables une bordure inférieure (31) portant des pattes de verrouillage (32) constituées de deux languettes identiques (33) et des pattes d'encliquetage (34). La zone d'affaiblissement (35) se trouve entre les deux languettes précitées. La seule différence avec la figure précédente est dans la forme géométrique de l'anneau de sûreté: pour le couvercle vissable, il est rond et pour le couvercle encliquetable il est carré.Fig. 8 shows a safety ring (30) for snap-on cover. It includes, as for the screwable covers, a lower edge (31) carrying locking tabs (32) made up of two identical tabs (33) and snap-on tabs (34). The weakening zone (35) is located between the two aforementioned tabs. The only difference with the previous figure is in the geometric shape of the safety ring: for the screwable cover, it is round and for the snap-on cover it is square.

L'intérêt du système de fermeture selon l'invention est qu'il permet de conserver les récipients et les couvercles déjà existants. Il faut simplement envisager la fabrication de l'anneau de sûreté qu'on dispose ensuite sur le couvercle. Le récipient lui-même étant par ailleurs rempli et operculé, il ne reste plus finalement qu'à coiffer ledit récipient du système de fermeture selon l'invention.The advantage of the closure system according to the invention is that it makes it possible to keep the containers and the lids already existing. It is simply necessary to consider the manufacture of the safety ring which is then placed on the cover. The container itself being also filled and sealed, it only remains to cap said container of the closure system according to the invention.

Ce dispositif trouve une application particulièrement intéressante sur des récipients contenant du café soluble, de la poudre de lait et autres produits alimentaires.This device finds a particularly interesting application on containers containing soluble coffee, milk powder and other food products.

Claims (12)

Fermeture filetée pour récipient, comportant un anneau de sûreté solidaire d'un couvercle pouvant être fixé sur le col du récipient, ledit couvercle comprenant un fond et une Jupe latérale dont la paroi intérieure comporte des rampes de fermeture formant filetage et prévues pour coopérer avec des rampes de fermeture correspondantes montées sur la partie externe du col du récipient, caractérisée en ce que l'anneau de sûreté comporte une bordure inférieure appuyant contre l'arête inférieure de la Jupe du couvercle et comportant au moins une patte de verrouillage et au moins deux pattes d'encliquetage, la patte de verrouillage appuyant en position fermée du couvercle contre un rebord du col du récipient situé sous les rampes de fermeture et la patte d'encliquetage étant verrouillée sur une rainure circulaire prévue dans la partie intérieure inférieure de la Jupe du couvercle.Threaded closure for container, comprising a safety ring secured to a cover that can be fixed to the neck of the container, said cover comprising a bottom and a side skirt, the inner wall of which includes ramps forming a thread and intended to cooperate with corresponding closing ramps mounted on the external part of the container neck, characterized in that the safety ring has a lower edge pressing against the lower edge of the cover skirt and comprising at least one locking tab and at least two latching tabs, the locking tab pressing in the closed position of the cover against a rim of the container neck located under the closing ramps and the latching tab being locked on a circular groove provided in the lower interior of the skirt of the lid. Fermeture filetée selon la revendication 1, caractérisée en ce que l'anneau de sûreté comporte une collerette solidaire de la bordure inférieure et épousant la forme de la paroi extérieure inférieure de la Jupe du couvercle.Threaded closure according to claim 1, characterized in that the safety ring comprises a collar secured to the lower edge and matching the shape of the lower outer wall of the cover skirt. Fermeture filetée selon l'une des revendications 1 ou 2, caractérisée en ce que les pattes de verrouillage et d'encliquetage font saillie en biais vers l'intérieur et vers le haut.Threaded closure according to one of Claims 1 or 2, characterized in that the locking and snap-fastening lugs protrude diagonally inwards and upwards. Fermeture filetée selon l'une des revendications 1 à 3, caractérisée en ce que chaque patte de verrouillage et d'encliquetage est formée par au moins une languette, la languette de verrouillage étant plus longue que la languette d'encliquetage.Threaded closure according to one of claims 1 to 3, characterized in that each locking and latching tab is formed by at least one tab, the locking tab being longer than the latching tab. Fermeture filetée selon l'une des revendications 1 à 4, caractérisée en ce que l'anneau de sûreté comporte trois pattes de verrouillage et trois pattes d'encliquetage réparties uniformément et alternativement sur son pourtour.Threaded closure according to one of claims 1 to 4, characterized in that the safety ring has three locking tabs and three latching tabs distributed uniformly and alternately around its periphery. Fermeture filetée selon l'une des revendications 1 à 5, caractérisée en ce que l'anneau de sûreté comporte entre chaque patte de verrouillage et d'encliquetage au moins une entaille formant une zone d'affaiblissement pour ledit anneau, la patte de verrouillage étant formée d'une languette..Threaded closure according to one of claims 1 to 5, characterized in that the safety ring comprises between each locking and latching tab at least one notch forming a weakening zone for said ring, the locking tab being formed of a tongue .. Fermeture filetée selon l'encliquetage des revendications 1 à 5, caractérisée en ce que chaque patte de verrouillage est formée de deux languettes, une entaille formant zone d'affaiblissement étant prévue entre lesdites deux languettes.Threaded closure according to the latching of claims 1 to 5, characterized in that each locking tab is formed by two tabs, a notch forming a weakening zone being provided between said two tabs. Fermeture filetée selon l'une des revendications 1 à 6, caractérisée en ce que chaque patte d'encliquetage comporte une languette de retenue s'engageant sur la rainure circulaire dans la partie inférieure intérieure de la Jupe du couvercle.Threaded closure according to one of claims 1 to 6, characterized in that each latching tab has a retaining tab engaging on the circular groove in the inner bottom of the skirt of the cover. Fermeture selon l'une des revendications 1 à 7, caractérisée en ce que l'anneau de sûreté est en une seule pièce et à base de polystyrène.Closure according to one of claims 1 to 7, characterized in that the safety ring is in one piece and based on polystyrene. Fermeture encliquetable pour récipient, comportant un anneau de sûreté solidaire d'un couvercle pouvant être fixé sur le col du récipient, ledit couvercle comprenant un fond et une jupe latérale dont la paroi intérieure comporte des moyens d 'accrochage prévus pour coopérer avec un rebord sur l'extérieur du col du récipient, caractérisée en ce que l'anneau de sûreté comporte une bordure inférieure appuyant contre l'arête inférieure de la Jupe du couvercle et comportant au moins une patte de verrouillage et au moins deux pattes d'encliquetage, la patte de verrouillage appuyant en position fermée du couvercle contre le rebord sur l'extérieur du col du récipient et la patte d'encliquetage étant verrouillée sur un crantage prévu dans la partie intérieure inférieure de la jupe du couvercle.Snap-on closure for container, comprising a safety ring secured to a cover that can be fixed on the neck of the container, said cover comprising a bottom and a side skirt, the inner wall of which comprises hooking means designed to cooperate with a flange on the outside of the container neck, characterized in that the safety ring has a lower edge pressing against the lower edge of the cover skirt and comprising at least one locking tab and at least two latching tabs, the locking tab pressing in the closed position of the cover against the flange on the outside of the container neck and the latching tab being locked on a notch provided in the lower inner part of the skirt of the cover. Anneau de sûreté pour la fermeture selon l'une quelconque des revendications 1 à 10, caractérisé en ce qu'il comprend une bordure comportant au moins une patte de verrouillage et au moins deux pattes d'encliquetage.Safety ring for closure according to any one of claims 1 to 10, characterized in that it comprises a border comprising at least one locking tab and at least two snap tabs. Anneau de sûreté selon la revendication 11, caractérisé en ce qu'il comprend une collerette solidaire de la bordure.Safety ring according to claim 11, characterized in that it comprises a collar secured to the edge.
EP93111110A 1993-07-12 1993-07-12 Container closure with safety ring Expired - Lifetime EP0636551B1 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
DE69302577T DE69302577T2 (en) 1993-07-12 1993-07-12 Container closure with safety ring
DK93111110.8T DK0636551T3 (en) 1993-07-12 1993-07-12 Container closure with safety ring
ES93111110T ES2088806T3 (en) 1993-07-12 1993-07-12 CLOSURE FOR CONTAINER WITH SAFETY RING.
AT93111110T ATE137715T1 (en) 1993-07-12 1993-07-12 CONTAINER CLOSURE WITH SAFETY RING
EP93111110A EP0636551B1 (en) 1993-07-12 1993-07-12 Container closure with safety ring
AU64739/94A AU685101B2 (en) 1993-07-12 1994-06-15 A closure for containers with a security ring
US08/265,323 US5667087A (en) 1993-07-12 1994-06-24 Closure and security ring for containers
CA002127007A CA2127007A1 (en) 1993-07-12 1994-06-29 Closure for containers with a security ring
GR960402018T GR3020660T3 (en) 1993-07-12 1996-07-31 Container closure with safety ring.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP93111110A EP0636551B1 (en) 1993-07-12 1993-07-12 Container closure with safety ring

Publications (2)

Publication Number Publication Date
EP0636551A1 true EP0636551A1 (en) 1995-02-01
EP0636551B1 EP0636551B1 (en) 1996-05-08

Family

ID=8213062

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93111110A Expired - Lifetime EP0636551B1 (en) 1993-07-12 1993-07-12 Container closure with safety ring

Country Status (9)

Country Link
US (1) US5667087A (en)
EP (1) EP0636551B1 (en)
AT (1) ATE137715T1 (en)
AU (1) AU685101B2 (en)
CA (1) CA2127007A1 (en)
DE (1) DE69302577T2 (en)
DK (1) DK0636551T3 (en)
ES (1) ES2088806T3 (en)
GR (1) GR3020660T3 (en)

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Publication number Publication date
DK0636551T3 (en) 1996-08-26
CA2127007A1 (en) 1995-01-13
DE69302577D1 (en) 1996-06-13
DE69302577T2 (en) 1996-09-12
AU685101B2 (en) 1998-01-15
EP0636551B1 (en) 1996-05-08
US5667087A (en) 1997-09-16
ES2088806T3 (en) 1996-09-16
GR3020660T3 (en) 1996-10-31
AU6473994A (en) 1995-01-19
ATE137715T1 (en) 1996-05-15

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