EP1240085A2 - Reservoir and fluid product dispenser with safe unscrewing - Google Patents

Reservoir and fluid product dispenser with safe unscrewing

Info

Publication number
EP1240085A2
EP1240085A2 EP00990058A EP00990058A EP1240085A2 EP 1240085 A2 EP1240085 A2 EP 1240085A2 EP 00990058 A EP00990058 A EP 00990058A EP 00990058 A EP00990058 A EP 00990058A EP 1240085 A2 EP1240085 A2 EP 1240085A2
Authority
EP
European Patent Office
Prior art keywords
thread
neck
external thread
unscrewing
ramp
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
EP00990058A
Other languages
German (de)
French (fr)
Other versions
EP1240085B1 (en
Inventor
Hervé Pennaneac'h
Marc Prieur
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.)
Aptar France SAS
Original Assignee
Valois SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Valois SAS filed Critical Valois SAS
Publication of EP1240085A2 publication Critical patent/EP1240085A2/en
Application granted granted Critical
Publication of EP1240085B1 publication Critical patent/EP1240085B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
    • B65D41/04—Threaded or like caps or cap-like covers secured by rotation
    • B65D41/0471—Threaded or like caps or cap-like covers secured by rotation with means for positioning the cap on the container, or for limiting the movement of the cap, or for preventing accidental loosening of the cap
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1043—Sealing or attachment arrangements between pump and container
    • B05B11/1046—Sealing or attachment arrangements between pump and container the pump chamber being arranged substantially coaxially to the neck of the container
    • B05B11/1047—Sealing or attachment arrangements between pump and container the pump chamber being arranged substantially coaxially to the neck of the container the pump being preassembled as an independent unit before being mounted on the container

Definitions

  • the present invention relates to a fluid reservoir comprising a threaded neck defining an opening through which the fluid can be extracted, for example using a pump.
  • the neck has an external thread intended to cooperate with a ring provided internally with a thread of the same pitch as the thread of the neck and serving, for example, for fixing a pump to the neck.
  • Document US 3 888 376 describes a security system for a screw cap on a threaded neck of a bottle.
  • the thread of the neck of the bottle is formed with a recess at its lower edge.
  • the thread of the thread is for the most part thick, then suddenly becomes thinner towards its end corresponding to the end of the screwing.
  • the step thus formed defines a transverse abutment wall.
  • the internal thread of the safety cap is produced symmetrically with an opposite recess at its upper edge which defines an opposite abutment wall.
  • the opposite step of the stopper is located near the start of the thread, which once fully engaged on the threaded neck of the bottle, arrives at the step of the thread of the neck.
  • the stopper wall of the stopper arrives at the stopper wall of the neck, so that the two walls intersect.
  • This stopper further comprises a flexible material forming a spring housed in its bottom and it is thus possible to unscrew the stopper by pressing it beforehand so as to compress the flexible material and thus vertically offset the stop walls. We can then unscrew the cap.
  • the cap In this security system, it is possible to unscrew the cap, which is the goal, however, preventing children from doing so. It should be noted that the cap must also be specially adapted to the neck of the bottle.
  • a bottle neck thread is provided with protrusions or flexible spines which project radially outward from the thread threads. These protuberances are deformed or twisted by the thread bottoms of the screw cap. These protrusions can also be in the form of a vertical rib which crosses the thread of the neck of the bottle. The edge of the rib protrudes rapidly outward from the thread. Again, this is a security system adapted to allow unscrewing.
  • the object of the present invention is to overcome this drawback of the prior art by defining locking means for threaded neck allowing easy screwing substantially identical to that on a conventional neck without locking means while effectively preventing unscrewing.
  • the blocking means must act only unidirectionally, that is to say in the direction of unscrewing, and be as inoperative as possible in the direction of screwing.
  • the present invention provides that said projection placed under the thread includes a ramp on which the internal thread engages during screwing and a locking edge at the end of the ramp defining beyond a blocking wall against which the internal thread stops in the event of unscrewing
  • the projection is completely asymmetrical with a progressive slope operating in the direction of screwing and an edge and a blocking wall operating in the direction of unscrewing
  • the ramp is progressive and inclined downwards extending, at the level of the blocking edge, up to the top of the external thread.
  • the blocking wall extends radially perpendicular to the external thread.
  • the external thread has at least one notch formed just beyond the projection in the direction of screwing.
  • said notch comprises a stop wall situated in the same plane as the projection blocking wall so as to merge at their junction.
  • the surface of the projection blocking wall is more extensive, and in particular in an area in which the internal thread of the ring engages.
  • the thread tends to deform in its upper part corresponding to the lower part of the external thread of the neck. This is why it is advantageous to produce a notch allowing the useful surface of the blocking wall to be extended.
  • said notch comprises a slope which extends substantially tangentially from the top of the thread to the base of the stop wall.
  • said thread does not meet resistance at the level of the notch.
  • FIG. 1 is a schematic perspective view of a tank neck according to the invention
  • Figure 2 is a view similar to that of Figure 1 taken at an angle of 90 ° relative to Figure 1
  • Figure 3 is a vertical cross-sectional view through a neck according to the invention on which a fixing ring is mounted.
  • a neck 11 of a tank 1 (partially shown).
  • the reservoir 1 can form a shoulder 10 at the level of which the neck 11 extends upwards.
  • the neck 11 defines a generally and substantially cylindrical barrel 12 which ends in an upper end 14 at which a sealing ring 15 can be provided.
  • the neck 11 defines an opening 110 through which fluid can be extracted using a dispensing member, for example a pump.
  • the cylindrical barrel 12 externally defines a thread 13 in the form of a cord which projects outwards. This is a completely classic design for a threaded tank neck.
  • the thread 13 of the neck 11 is provided with locking means in the form of one or more projections 16, preferably two, located diametrically opposite.
  • the projections 16 are located below the thread 13 and include a ramp 161 ending in a locking edge 162 defining beyond a locking wall 163 as can be seen in FIG. 2.
  • the ramp defines a substantially flat surface which extends gradually and inclined from right to left, that is to say in the direction of screwing, to end with the substantially straight locking edge 162 which extends to the level of the vertex 130 of the thread 13.
  • the projection is therefore in the form of an increasingly thick mass having a downwardly inclined outer surface which begins at the junction made between the thread 13 and the barrel and ends in l ridge 162 which extends perpendicularly to the foot 12 of the neck 11 through the blocking wall 163.
  • the thread 13 can be formed with a notch 131 located beyond the projectionl ⁇ in the direction of screwing.
  • This notch 131 defines a stop wall 133 situated in the same plane as the blocking wall 163, so that they merge at their junction as can be seen in FIG. 2. Consequently, the wall d 'stop 133 extends the blocking wall 163 upwards which increases its useful surface.
  • the notch 132 has a slope 131 which extends substantially tangentially to the barrel 12 of the neck 11. Thus, during screwing, the notch 132 practically does not interfere with the threading of a member to be screwed.
  • the fixing member 2 conventionally comprises a receiving sleeve 22 intended to receive, for example by snap-fastening, the body of the pump or of the valve.
  • the fixing member 2 defines a fixing ring 21 provided internally with a thread 210 intended to cooperate with the external thread
  • the thread pitch 210 is the same as that of the thread 13.
  • the fixing member 2 can define a covering 23.
  • the fixing member 2 is made of material molded plastic, while the tank is made of glass, plastic or any other suitable material.
  • the thread 210 of the ring 21 therefore tends to deform by creep at the level of the blocking wall 163 by enveloping the blocking edge 162 so that unscrewing is impossible.
  • the thread 210 naturally tends to be biased upwards due to the support of the ring on the top 14 of the neck.
  • the net 210 tends to rise on the underside of the net 13.
  • the notch 132 then plays its full effect by increasing the useful surface of the blocking wall 163.
  • the blocking means according to the invention can be formed for example at the level of the joint plane of half-shells necessary for molding the reservoir.
  • the parting line is shown in FIG. 1 by the dotted line A which passes at the level of the locking and stopping walls 163 and 133.
  • the unscrewing of an organ is more difficult while its screwing can be carried out with a force substantially identical to that which would be exerted on a traditional neck devoid of locking means.

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

Abstract

The invention concerns a fluid product reservoir (1) comprising a neck (11) defining a substantially cylindrical tube (12) and an opening (110), said neck being provided on the outside with an external threading (13) designed to co-operate with a ring (21) provided on the inside with an internal threading (210) having a different thread pitch from the neck external threading (13), the external threading being provided with locking means (16) to prevent the ring from being unscrewed, said locking means comprising at least a projection (16) located beneath the external threading (13) on the passage of the internal threading. The invention is characterised in that said projection (16) comprises a ramp (161) whereon the internal threading (210) is engaged when screwed and a locking ridge (162) at the end of the ramp (161) defining in extension a locking wall (163) against which the internal threading (210) abuts in case of unscrewing.

Description

Réservoir et distributeur de produit fluide à sécurité de dévissage. Fluid product reservoir and distributor with unscrewing safety.
La présente invention concerne un réservoir de produit fluide comprenant un col fileté définissant une ouverture par laquelle le produit fluide peut être extrait par exemple à l'aide d'une pompe. Le col présente un filetage externe destiné à coopérer avec une bague pourvue intérieurement d'un filetage du même pas que le filetage du col et servant, par exemple, à la fixation d'une pompe sur le col.The present invention relates to a fluid reservoir comprising a threaded neck defining an opening through which the fluid can be extracted, for example using a pump. The neck has an external thread intended to cooperate with a ring provided internally with a thread of the same pitch as the thread of the neck and serving, for example, for fixing a pump to the neck.
Ce genre de réservoir à col fileté est très largement répandu dans de nombreux domaines d'application, comme par exemple la cosmétique, la parfumerie ou encore la pharmacie.This type of threaded neck tank is very widespread in many fields of application, such as for example cosmetics, perfumery or even pharmacy.
Il est également connu d'équiper les distributeurs utilisant un tel réservoir de systèmes de sécurité d' anti-dévissage permettant d'éviter tout dévissage, qu'il soit volontaire ou accidentel. Pour ce faire, on utilise dans l'art antérieur des moyens de blocage sous la forme d'une ou de plusieurs projections situées localement au niveau du filetage externe du col de manière à pouvoir coopérer avec le filetage interne de la bague.It is also known to equip distributors using such a tank with anti-unscrewing safety systems making it possible to avoid any unscrewing, whether voluntary or accidental. To do this, use is made in the prior art of locking means in the form of one or more projections located locally at the external thread of the neck so as to be able to cooperate with the internal thread of the ring.
Le document US 3 888 376 décrit un système de sécurité pour un bouchon à visser sur un col fileté de bouteille. Le filetage du col de la bouteille est formé avec un décrochement au niveau de son bord inférieur.Document US 3 888 376 describes a security system for a screw cap on a threaded neck of a bottle. The thread of the neck of the bottle is formed with a recess at its lower edge.
Pour réaliser ce décrochement, le filet du filetage est épais dans sa majeure partie, puis devient subitement plus fin vers son extrémité correspondant à la fin du vissage. Le décrochement ainsi formé définit une paroi de butée transversale.To achieve this offset, the thread of the thread is for the most part thick, then suddenly becomes thinner towards its end corresponding to the end of the screwing. The step thus formed defines a transverse abutment wall.
D'autre part, le filetage interne du bouchon de sécurité est réalisé de manière symétrique avec un décrochement opposé au niveau de son bord supérieur qui définit une paroi de butée opposée. Le décrochement opposé du bouchon est situé à proximité du début du filetage, qui une fois engagé à fond sur le col fileté de la bouteille, arrive au niveau du décrochement du filetage du col. En continuant à visser le bouchon, la paroi de butée du bouchon arrive au niveau de la paroi de butée du col, de sorte que les deux parois se croisent. Ce bouchon comprend en outre un matériau souple formant ressort logé dans son fond et il est ainsi possible de dévisser le bouchon en appuyant au préalable sur celui-ci de manière à comprimer le matériau souple et ainsi décaler verticalement les parois de butée On peut alors dévisser le bouchon.On the other hand, the internal thread of the safety cap is produced symmetrically with an opposite recess at its upper edge which defines an opposite abutment wall. The opposite step of the stopper is located near the start of the thread, which once fully engaged on the threaded neck of the bottle, arrives at the step of the thread of the neck. By continuing to screw the stopper, the stopper wall of the stopper arrives at the stopper wall of the neck, so that the two walls intersect. This stopper further comprises a flexible material forming a spring housed in its bottom and it is thus possible to unscrew the stopper by pressing it beforehand so as to compress the flexible material and thus vertically offset the stop walls. We can then unscrew the cap.
Dans ce système de sécurité, il est possible de dévisser le bouchon c'est d'ailleurs le but recherché en empêchant cependant aux enfants de le faire. Il est à noter que le bouchon doit aussi être spécialement adapté au col de la bouteille.In this security system, it is possible to unscrew the cap, which is the goal, however, preventing children from doing so. It should be noted that the cap must also be specially adapted to the neck of the bottle.
Dans un autre document US 3 405 831, un filetage de col de bouteille est pourvu de protubérances ou d'épines souples qui font saillie radialement vers l'extérieur a partir des filets du filetage. Ces protubérances sont déformées ou tordues par les fonds de filets du bouchon à visser. Ces protubérances peuvent également se présenter sous la forme d'une nervure verticale qui croise le filetage du col de la bouteille. L'arête de la nervure fait saillie rapidement vers l'extérieur par rapport au filetage. Là encore, il s'agit d'un système de sécurité adapté a permettre un dévissage.In another document US 3,405,831, a bottle neck thread is provided with protrusions or flexible spines which project radially outward from the thread threads. These protuberances are deformed or twisted by the thread bottoms of the screw cap. These protrusions can also be in the form of a vertical rib which crosses the thread of the neck of the bottle. The edge of the rib protrudes rapidly outward from the thread. Again, this is a security system adapted to allow unscrewing.
Un autre genre de projection, communément désigné sous le terme de « grain de riz » ou « puce », se présente simplement sous la forme d'une goutte sensiblement symétrique placée sans le filetage du col sur le passage du filetage interne du bouchon. Il s'agit là d'un système d' antidévissage contrairement aux deux documents précités, en ce sens qu'on ne peut théoriquement plus dévisser le bouchon. Cependant, en raison de leur symétrie presque parfaite, ces grains de riz ou puces sont formés, lorsque le réservoir est en verre, dans chacune des demi-coques de moule servant a réaliser le réservoir. Plus précisément, ces grains de riz sont situés à 90° du plan de joint défini par les deux demi-coquesAnother kind of projection, commonly known as a "grain of rice" or "chip", is simply in the form of a substantially symmetrical drop placed without the thread of the neck on the passage of the internal thread of the plug. This is an anti-unscrewing system unlike the two aforementioned documents, in the sense that one can theoretically no longer unscrew the cap. However, because of their almost perfect symmetry, these grains of rice or chips are formed, when the tank is made of glass, in each of the mold half-shells used to make the tank. More precisely, these grains of rice are located at 90 ° to the joint plane defined by the two half-shells
On a remarqué qu'avec ce type de moyens de blocage (grains de riz), la force nécessaire au vissage est en partie absorbée par les moyens de blocage au eu de participer à la tension dans le filetage. De plus, le dévissage est encore possible en y mettant de la force.It has been noted that with this type of locking means (grains of rice), the force necessary for screwing is partly absorbed by the locking means when having to participate in the tension in the thread. In addition, unscrewing is still possible by applying force.
Le but de la présente invention est de surmonter cet inconvénient de l'art antérieur en définissant des moyens de blocage pour col fileté permettant un vissage facile sensiblement identique à celui sur un col classique dépourvu de moyens de blocage tout en interdisant efficacement le dévissage. En d'autres termes, les moyens de blocage ne doivent agir qu'unidirectionnellement, c'est-à-dire dans le sens du dévissage, et être le plus inopérant possible dans le sens du vissage Pour ce faire, la présente invention prévoit que ladite projection placée sous le filetage comprend une rampe sur laquelle s'engage le filetage interne lors du vissage et une arête de blocage à l'extrémité de la rampe définissant au-delà une paroi de blocage contre laquelle le filetage interne bute en cas de dévissage Ainsi, la projection est totalement asymétπque avec une pente progressive opérant dans le sens du vissage et une arête et une paroi de blocage opérantes dans le sens du dévissage Avec une telle configuration, une bague peut être très aisément vissée sur le col, et le dévissage est rendu plus difficile du fait que le couple est considérablement amélioré.The object of the present invention is to overcome this drawback of the prior art by defining locking means for threaded neck allowing easy screwing substantially identical to that on a conventional neck without locking means while effectively preventing unscrewing. In other words, the blocking means must act only unidirectionally, that is to say in the direction of unscrewing, and be as inoperative as possible in the direction of screwing. To do this, the present invention provides that said projection placed under the thread includes a ramp on which the internal thread engages during screwing and a locking edge at the end of the ramp defining beyond a blocking wall against which the internal thread stops in the event of unscrewing Thus, the projection is completely asymmetrical with a progressive slope operating in the direction of screwing and an edge and a blocking wall operating in the direction of unscrewing With such a configuration, a ring can be very easily screwed on the neck, and unscrewing is made more difficult because the torque is considerably improved.
Selon un mode de réalisation, la rampe est progressive et inclinée vers le bas en s'etendant, au niveau de l'arête de blocage, jusqu'au sommet du filetage externe Avantageusement, la paroi de blocage s'étend radialement perpendiculairement au filetage externe. Lorsque le réservoir est réalisé par moulage, de verre, de plastique ou autre matériau, en utilisant deux demi-coques définissant entre elles un plan de joint, l'arête de blocage est située dans ledit plan de joint. Il est en effet plus aisé de réaliser des parois perpendiculaires au col au niveau du plan de joint.According to one embodiment, the ramp is progressive and inclined downwards extending, at the level of the blocking edge, up to the top of the external thread. Advantageously, the blocking wall extends radially perpendicular to the external thread. . When the tank is made by molding, glass, plastic or other material, using two half-shells defining between them a joint plane, the blocking edge is located in said joint plane. It is in fact easier to produce walls perpendicular to the neck at the joint plane.
Selon une autre caractéristique de l'invention, le filetage externe présente au moins une échancrure formée juste au-delà de la projection dans le sens du vissage. Avantageusement, ladite échancrure comprend une paroi d'arrêt située dans le même plan que la paroi de blocage de la projection de manière à se confondre au niveau de leur jonction. Ainsi, la surface de la paroi de blocage de la projection est plus étendue, et notamment dans une zone dans laquelle le filetage interne de la bague vient en prise. En effet, lorsque la bague est vissée à fond sur le col, celle-ci prend appui sur l'extrémité supérieure du col de sorte qu'elle est fortement appuyée vers le haut contre la face inférieure du filetage externe du col. Par conséquent, le filetage a tendance à se déformer dans sa partie supérieure correspondant à la partie inférieure du filetage externe du col. C'est pourquoi il est avantageux de réaliser une échancrure permettant d'étendre la surface utile de la paroi de blocage.According to another characteristic of the invention, the external thread has at least one notch formed just beyond the projection in the direction of screwing. Advantageously, said notch comprises a stop wall situated in the same plane as the projection blocking wall so as to merge at their junction. Thus, the surface of the projection blocking wall is more extensive, and in particular in an area in which the internal thread of the ring engages. In fact, when the ring is screwed fully onto the neck, the latter bears on the upper end of the neck so that it is strongly pressed upwards against the underside of the external thread of the neck. Consequently, the thread tends to deform in its upper part corresponding to the lower part of the external thread of the neck. This is why it is advantageous to produce a notch allowing the useful surface of the blocking wall to be extended.
De préférence, ladite échancrure comprend une pente qui s'étend sensiblement tangentiellement depuis le sommet du filetage jusqu'à la base de la paroi d'arrêt. Ainsi, lors du vissage le filetage ne rencontre pas de résistance au niveau de l' échancrure.Preferably, said notch comprises a slope which extends substantially tangentially from the top of the thread to the base of the stop wall. Thus, during screwing the thread does not meet resistance at the level of the notch.
L'invention concerne également un distributeur de produit fluide équipé d'un tel réservoir. Dans ce cas, la bague est une bague de fixation (et non un bouchon) permettant de fixer une pompe ou une valve sur le col du réservoir. L'invention sera maintenant plus amplement décrite en référence aux dessins joints, donnant à titre d'exemple non limitatif, un mode de réalisation de l'invention. Sur les figures • la figure 1 est une vue en perspective schématique d'un col de réservoir selon l'invention, la figure 2 est une vue similaire à celle de la figure 1 prise selon un angle de 90° par rapport à la figure 1, et - la figure 3 est une vue en coupe transversale verticale à travers un col selon l'invention sur lequel une bague de fixation est montée.The invention also relates to a fluid dispenser equipped with such a reservoir. In this case, the ring is a fixing ring (and not a plug) making it possible to fix a pump or a valve on the neck of the tank. The invention will now be described more fully with reference to the accompanying drawings, giving by way of nonlimiting example, an embodiment of the invention. In the figures • Figure 1 is a schematic perspective view of a tank neck according to the invention, Figure 2 is a view similar to that of Figure 1 taken at an angle of 90 ° relative to Figure 1, and - the Figure 3 is a vertical cross-sectional view through a neck according to the invention on which a fixing ring is mounted.
En se référant tout d'abord aux figures 1 et 2, on voit un col 11 d'un réservoir 1 (partiellement représenté). De manière classique, le réservoir 1 peut former un épaulement 10 au niveau duquel s'étend le col 11 vers le haut. Le col 11 définit un fût généralement et sensiblement cylindrique 12 qui se termine par une extrémité supérieure 14 au niveau de laquelle un jonc d'étanchéité 15 peut être prévu. Intérieurement, le col 11 définit une ouverture 110 par laquelle du produit fluide peut être extrait à l'aide d'un organe de distribution, par exemple une pompe. Le fût cylindrique 12 définit extérieurement un filetage 13 sous la forme d'un cordon qui fait saillie vers l'extérieur. Il s'agit là d'une conception tout à fait classique pour un col fileté de réservoir. Selon l'invention, le filetage 13 du col 11 est pourvu de moyens de blocage sous la forme d'une ou de plusieurs projections 16, de préférence deux, situées de manière diamétralement opposée. Les projections 16 sont situées en-dessous du filetage 13 et comprennent une rampe 161 se terminant par une arête de blocage 162 définissant au-delà une paroi de blocage 163 comme on peut le voir sur la figure 2. La rampe définit une surface sensiblement plane qui s'étend progressivement et de manière inclinée de droite à gauche, c'est-à-dire dans le sens du vissage, pour se terminer par l'arête de blocage sensiblement rectiligne 162 qui s'étend jusqu'au niveau du sommet 130 du filetage 13. La projection se présente par conséquent sous la forme d'une masse de plus en plus épaisse présentant une surface extérieure inclinée vers le bas qui commence au niveau de la jonction réalisée entre le filetage 13 et le fût et se termine par l'arête 162 qui se prolonge perpendiculairement au f t 12 du col 11 par la paroi de blocage 163. On comprend aisément que le filetage interne d'un organe à visser sur le col s'engage aisément sur la rampe 161 lors du vissage sans augmenter le couple nécessaire, alors que le dévissage de cet organe est empêché par la paroi de blocage 163 délimitée par l'arête 162. Les moyens de blocage selon l'invention n'agissent donc qu'unidirectionnellement dans le sens du dévissage, sans modifier pratiquement le couple nécessaire au vissage. Avantageusement, le filetage 13 peut être formé avec une échancrure 131 située au-delà de la projectionlό dans le sens du vissage. Cette échancrure 131 définit une paroi d'arrêt 133 située dans le même plan que la paroi de blocage 163, de sorte qu'elles se confondent au niveau de leur jonction comme on peut le voir sur la figure 2. Par conséquent, la paroi d'arrêt 133 prolonge la paroi de blocage 163 vers le haut ce qui augmente sa surface utile. L'échancrure 132 présente une pente 131 qui s'étend sensiblement tangentiellement au fût 12 du col 11. Ainsi, lors du vissage, l'échancrure 132 n'interfère pratiquement pas avec le filetage d'un organe à visser.Referring first to Figures 1 and 2, we see a neck 11 of a tank 1 (partially shown). Conventionally, the reservoir 1 can form a shoulder 10 at the level of which the neck 11 extends upwards. The neck 11 defines a generally and substantially cylindrical barrel 12 which ends in an upper end 14 at which a sealing ring 15 can be provided. Internally, the neck 11 defines an opening 110 through which fluid can be extracted using a dispensing member, for example a pump. The cylindrical barrel 12 externally defines a thread 13 in the form of a cord which projects outwards. This is a completely classic design for a threaded tank neck. According to the invention, the thread 13 of the neck 11 is provided with locking means in the form of one or more projections 16, preferably two, located diametrically opposite. The projections 16 are located below the thread 13 and include a ramp 161 ending in a locking edge 162 defining beyond a locking wall 163 as can be seen in FIG. 2. The ramp defines a substantially flat surface which extends gradually and inclined from right to left, that is to say in the direction of screwing, to end with the substantially straight locking edge 162 which extends to the level of the vertex 130 of the thread 13. The projection is therefore in the form of an increasingly thick mass having a downwardly inclined outer surface which begins at the junction made between the thread 13 and the barrel and ends in l ridge 162 which extends perpendicularly to the foot 12 of the neck 11 through the blocking wall 163. It is easily understood that the internal thread of a member to be screwed on the neck easily engages on the ramp 161 during screwing without increasing r the necessary torque, while the unscrewing of this member is prevented by the blocking wall 163 delimited by the edge 162. The blocking means according to the invention therefore act only unidirectionally in the direction of unscrewing, without modifying practically the torque required for screwing. Advantageously, the thread 13 can be formed with a notch 131 located beyond the projectionlό in the direction of screwing. This notch 131 defines a stop wall 133 situated in the same plane as the blocking wall 163, so that they merge at their junction as can be seen in FIG. 2. Consequently, the wall d 'stop 133 extends the blocking wall 163 upwards which increases its useful surface. The notch 132 has a slope 131 which extends substantially tangentially to the barrel 12 of the neck 11. Thus, during screwing, the notch 132 practically does not interfere with the threading of a member to be screwed.
On se référera maintenant à la figure 3 où l'on voit un organe de fixation de pompe ou de valve monté sur un col de réservoir selon l'invention. L'organe de fixation 2 comprend de manière classique une douille de réception 22 destinée à recevoir par exemple par encliquetage le corps de la pompe ou de la valve. D'autre part, l'organe de fixation 2 définit une bague de fixation 21 pourvue intérieurement d'un filetage 210 destiné à coopérer avec le filetage externeWe will now refer to Figure 3 where we see a pump or valve fixing member mounted on a tank neck according to the invention. The fixing member 2 conventionally comprises a receiving sleeve 22 intended to receive, for example by snap-fastening, the body of the pump or of the valve. On the other hand, the fixing member 2 defines a fixing ring 21 provided internally with a thread 210 intended to cooperate with the external thread
13 du col 11. A cet effet, le pas du filetage 210 est le même que celui du filetage 13. Extérieurement, l'organe de fixation 2 peut définir un habillage 23. De préférence, l'organe de fixation 2 est réalisé en matière plastique moulée, alors que le réservoir est réalisé en verre, en plastique ou tout autre matériau approprié. Le filet 210 de la bague 21 a donc tendance à se déformer par fluage au niveau de la paroi de blocage 163 en enveloppant l'arête de blocage 162 de sorte que le dévissage est impossible. Lorsque la bague 21 est vissée à fond sur le col 11, le filetage 210 a bien entendu tendance à être sollicité vers le haut en raison de l'appui de la bague sur le sommet 14 du col. De ce fait, le filet 210 a tendance à remonter sur la face inférieure du filet 13. L'échancrure 132 joue alors son plein effet en augmentant la surface utile de la paroi de blocage 163.13 of the neck 11. For this purpose, the thread pitch 210 is the same as that of the thread 13. Externally, the fixing member 2 can define a covering 23. Preferably, the fixing member 2 is made of material molded plastic, while the tank is made of glass, plastic or any other suitable material. The thread 210 of the ring 21 therefore tends to deform by creep at the level of the blocking wall 163 by enveloping the blocking edge 162 so that unscrewing is impossible. When the ring 21 is screwed fully onto the neck 11, the thread 210 naturally tends to be biased upwards due to the support of the ring on the top 14 of the neck. As a result, the net 210 tends to rise on the underside of the net 13. The notch 132 then plays its full effect by increasing the useful surface of the blocking wall 163.
Il est également à noter que les moyens de blocage selon l'invention peuvent être formés par exemple au niveau du plan de joint de demi-coques nécessaires au moulage du réservoir. Le plan de joint est matérialisé sur la figure 1 par la ligne en trait pointillé A qui passe au niveau des parois de blocage et d'arrêt 163 et 133.It should also be noted that the blocking means according to the invention can be formed for example at the level of the joint plane of half-shells necessary for molding the reservoir. The parting line is shown in FIG. 1 by the dotted line A which passes at the level of the locking and stopping walls 163 and 133.
Grâce à l'invention, le dévissage d'un organe est plus difficile alors que son vissage peut être réalisé avec une force sensiblement identique à celle que l'on exercerait sur un col traditionnel dépourvu de moyens de blocage. Thanks to the invention, the unscrewing of an organ is more difficult while its screwing can be carried out with a force substantially identical to that which would be exerted on a traditional neck devoid of locking means.

Claims

Revendications : Claims:
1.- Réservoir de produit fluide (1) comprenant un col (11) définissant un fût sensiblement cylindrique (12) et une ouverture (110), ledit col étant pourvu extérieurement d'un filetage externe (13) destiné à coopérer avec une bague (21) pourvue intérieurement d'un filetage interne (210) ayant le même pas que le filetage externe (13) du col, le filetage externe (13) étant pourvu de moyens de blocage (16) pour empêcher un dévissage de la bague, lesdits moyens de blocage comprenant au moins une projection (16) située sous le filetage externe (13) sur le passage du filetage interne (210), caractérisé en ce que ladite projection (16) comprend une rampe (161) sur laquelle s'engage le filetage interne (210) lors du vissage et une arête de blocage (162) à l'extrémité de la rampe (161) définissant au-delà une paroi de blocage (163) contre laquelle le filetage interne (210) bute en cas de dévissage.1.- Fluid tank (1) comprising a neck (11) defining a substantially cylindrical barrel (12) and an opening (110), said neck being provided externally with an external thread (13) intended to cooperate with a ring (21) provided internally with an internal thread (210) having the same pitch as the external thread (13) of the neck, the external thread (13) being provided with locking means (16) to prevent unscrewing of the ring, said locking means comprising at least one projection (16) located under the external thread (13) on the passage of the internal thread (210), characterized in that said projection (16) comprises a ramp (161) on which engages the internal thread (210) during screwing and a blocking edge (162) at the end of the ramp (161) defining beyond a blocking wall (163) against which the internal thread (210) abuts in the event of unscrewing.
2.- Réservoir de produit fluide selon la revendication 1, dans lequel la rampe (161) est progressive et inclinée vers le bas en s'étendant, au niveau de l'arête de blocage, jusqu'au sommet (130) du filetage externe (13). 2.- fluid reservoir according to claim 1, in which the ramp (161) is progressive and inclined downwards extending, at the level of the blocking edge, to the top (130) of the external thread (13).
3.- Réservoir de produit fluide selon la revendication 1 ou 2, dans lequel la paroi de blocage (163) s'étend radialement perpendiculairement au filetage externe.3.- fluid reservoir according to claim 1 or 2, wherein the blocking wall (163) extends radially perpendicular to the external thread.
4.- Réservoir de produit fluide selon la revendication 3, dans lequel le réservoir est réalisé par moulage en utilisant deux demi-coques définissant entre elles un plan de joint, l'arête de blocage (162) étant située dans ledit plan de joint (17). 4. Fluid reservoir according to claim 3, in which the reservoir is produced by molding using two half-shells defining between them a joint plane, the locking edge (162) being located in said joint plane ( 17).
5.- Réservoir de produit fluide selon l'une quelconque des revendications précédentes, dans lequel le filetage externe (13) présente au moins une échancrure (131) formée juste au- delà de la projection (16) dans le sens du vissage.5.- fluid reservoir according to any one of the preceding claims, wherein the external thread (13) has at least one notch (131) formed just beyond the projection (16) in the direction of screwing.
6.- Réservoir de produit fluide selon la revendication 5, dans lequel ladite échancrure (131) comprend une paroi d'arrêt (133) située dans le même plan que la paroi de blocage (163) de la projection (16) de manière à se confondre au niveau de leur jonction.6.- fluid reservoir according to claim 5, wherein said notch (131) comprises a stop wall (133) located in the same plane as the blocking wall (163) of the projection (16) so as to merge at their junction.
7.- Réservoir de produit fluide selon la revendication 5 ou 6, dans lequel ladite échancrure (131) comprend une pente (132) qui s'étend sensiblement depuis le sommet du filetage (130) jusqu'à la base de la paroi d'arrêt (133).7.- fluid reservoir according to claim 5 or 6, wherein said notch (131) comprises a slope (132) which extends substantially from the top of the thread (130) to the base of the wall of judgment (133).
8.- Réservoir selon la revendication 4, dans lequel l'arête de blocage (162) relie le sommet (130) du filetage externe au fût cylindrique (12). 8.- Tank according to claim 4, wherein the locking edge (162) connects the top (130) of the external thread to the cylindrical barrel (12).
9.- Réservoir selon la revendication 8, dans lequel la rampe (161) définit une surface sensiblement plane s'étendant depuis une jonction du filetage (13) et du fût (12) jusqu'à l'arête (162).9.- Tank according to claim 8, wherein the ramp (161) defines a substantially planar surface extending from a junction of the thread (13) and the barrel (12) to the edge (162).
10.- Distributeur de produit fluide comprenant un réservoir selon l'une quelconque des revendications précédentes. 10. A fluid dispenser comprising a reservoir according to any one of the preceding claims.
EP00990058A 1999-12-16 2000-12-12 Reservoir and fluid product dispenser with safe unscrewing Expired - Lifetime EP1240085B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9916025A FR2802513B1 (en) 1999-12-16 1999-12-16 FLUID PRODUCT TANK AND DISTRIBUTOR WITH UNSCREW SECURITY
FR9916025 1999-12-16
PCT/FR2000/003474 WO2001044067A2 (en) 1999-12-16 2000-12-12 Reservoir and fluid product dispenser with safe unscrewing

Publications (2)

Publication Number Publication Date
EP1240085A2 true EP1240085A2 (en) 2002-09-18
EP1240085B1 EP1240085B1 (en) 2004-06-23

Family

ID=9553448

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00990058A Expired - Lifetime EP1240085B1 (en) 1999-12-16 2000-12-12 Reservoir and fluid product dispenser with safe unscrewing

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US (1) US6948640B2 (en)
EP (1) EP1240085B1 (en)
DE (1) DE60011812T2 (en)
ES (1) ES2222938T3 (en)
FR (1) FR2802513B1 (en)
WO (1) WO2001044067A2 (en)

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DE102006045805A1 (en) * 2006-09-26 2008-03-27 Friedrich Sanner Gmbh & Co. Kg Container for receiving and delivering a particular flowable medium
US9233772B2 (en) * 2011-06-03 2016-01-12 Gk Packaging, Inc. Spirally threaded molded bottle neck having areas of reduced wall thickness
GB201402604D0 (en) 2014-02-14 2014-04-02 Obrist Closures Switzerland Closure combination
AU367126S (en) * 2015-06-01 2016-02-15 Obrist Closures Switzerland Bottle neck finish
DE102016223047A1 (en) * 2016-11-22 2018-05-24 Henkel Ag & Co. Kgaa Container with attachment
FR3108861B1 (en) * 2020-04-07 2022-06-24 Aptar France Sas Fluid product dispenser
FR3122863B1 (en) 2021-05-12 2023-11-24 Pochet Du Courval Glass container with a short ring
FR3133842A1 (en) * 2022-03-25 2023-09-29 L'oreal Notch conditioning device

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Also Published As

Publication number Publication date
ES2222938T3 (en) 2005-02-16
DE60011812D1 (en) 2004-07-29
FR2802513A1 (en) 2001-06-22
WO2001044067A2 (en) 2001-06-21
WO2001044067A3 (en) 2002-01-03
FR2802513B1 (en) 2002-02-15
US20030029887A1 (en) 2003-02-13
DE60011812T2 (en) 2005-07-14
EP1240085B1 (en) 2004-06-23
US6948640B2 (en) 2005-09-27

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