EP2170719B1 - Child-safe closure device with screw and collar for revealing first opening - Google Patents

Child-safe closure device with screw and collar for revealing first opening Download PDF

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Publication number
EP2170719B1
EP2170719B1 EP08760476A EP08760476A EP2170719B1 EP 2170719 B1 EP2170719 B1 EP 2170719B1 EP 08760476 A EP08760476 A EP 08760476A EP 08760476 A EP08760476 A EP 08760476A EP 2170719 B1 EP2170719 B1 EP 2170719B1
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EP
European Patent Office
Prior art keywords
catches
closure device
container
cap
neck
Prior art date
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EP08760476A
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German (de)
French (fr)
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EP2170719A1 (en
Inventor
Valère Logel
Vincent Sebille
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Airsec SAS
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Airsec SAS
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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
    • B65D41/3404—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with ratchet-and-pawl mechanism between the container and the closure skirt or the tamper element
    • B65D41/3409—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with ratchet-and-pawl mechanism between the container and the closure skirt or the tamper element the tamper element being integrally connected to the closure by means of bridges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D50/00—Closures with means for discouraging unauthorised opening or removal thereof, with or without indicating means, e.g. child-proof closures
    • B65D50/02—Closures with means for discouraging unauthorised opening or removal thereof, with or without indicating means, e.g. child-proof closures openable or removable by the combination of plural actions
    • B65D50/04—Closures with means for discouraging unauthorised opening or removal thereof, with or without indicating means, e.g. child-proof closures openable or removable by the combination of plural actions requiring the combination of simultaneous actions, e.g. depressing and turning, lifting and turning, maintaining a part and turning another one
    • B65D50/045—Closures with means for discouraging unauthorised opening or removal thereof, with or without indicating means, e.g. child-proof closures openable or removable by the combination of plural actions requiring the combination of simultaneous actions, e.g. depressing and turning, lifting and turning, maintaining a part and turning another one where one action elastically deforms or deflects at least part of the closure, the container or an intermediate element, e.g. a ring
    • B65D50/046—Closures with means for discouraging unauthorised opening or removal thereof, with or without indicating means, e.g. child-proof closures openable or removable by the combination of plural actions requiring the combination of simultaneous actions, e.g. depressing and turning, lifting and turning, maintaining a part and turning another one where one action elastically deforms or deflects at least part of the closure, the container or an intermediate element, e.g. a ring and such deformation causes the disengagement of locking means, e.g. the release of a pawl-like element from a tooth or abutment, to allow removal of the closure by simultaneous rotation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D51/00—Closures not otherwise provided for
    • B65D51/24—Closures not otherwise provided for combined or co-operating with auxiliary devices for non-closing purposes
    • B65D51/28—Closures not otherwise provided for combined or co-operating with auxiliary devices for non-closing purposes with auxiliary containers for additional articles or materials
    • B65D51/30—Closures not otherwise provided for combined or co-operating with auxiliary devices for non-closing purposes with auxiliary containers for additional articles or materials for desiccators

Definitions

  • the invention relates to a safety closure device for a container whose mouthpiece is provided with an external screw thread, a device that is child-proof and also includes a first-opening indicator and an element desiccant.
  • the invention more particularly relates to a safety device for screw-fastening for a container, comprising a single cap to be screwed onto said container, said cap having the capacity to disengage from a locking position via a double lateral pressure.
  • said device being further equipped with a first-opening indicator ring cooperating with the neck of the container on which the closure device is mounted and with a desiccant element.
  • Closing devices offering child safety can be of different types.
  • the security can be either the consequence of a deformation by opposite lateral pressure of the plug allowing unblocking of the unscrewing function, followed by the rotation of the plug, or a vertical displacement engaging a device allowing the unscrewing, this vertical movement in front of be driven simultaneously with a rotation.
  • Child-resistant plugs operating on the principle of a double vertical movement and rotation equipped with a first-opening indicator ring exist, but are relatively complex to implement insofar as they involve the presence and a plug internal screw on said container and a coaxial outer cap integrally covering the inner cap, the outer cap having ability to drive the inner cap through a snap-in system, when are performed on the outer cap, axial pressure and rotation.
  • the document WO9850283 discloses a child-resistant screw cap of the simple plug type, operating in the mode of a double opposite radial pressure and a rotation allowing unscrewing, said cap being equipped with a first opening control ring.
  • the cap comprises, on its lower outer periphery, that is to say, its skirt, two diametrically opposite zones on which can be exerted lateral pressures.
  • Child safety notches presenting as protuberances, towards the inside of the stopper, allow the locking in rotation of the stopper. These notches are positioned at 90 ° of the pressure zones and extend downwardly to the lower level of the cap skirt.
  • First and second child safety notches are placed on the neck of the specific container to which the stopper is associated, and are positioned above the first-opening indicator ring.
  • the connection between the first opening control ring and the lower part of the plug is ensured by breakable bridges positioned at 45 ° with respect to the pressure zones. It is important to overcome the child safety before the first opening indicator ring can not be detached by rupture of the breakable bridges, rupture obtained by rotational rotation of said ring during the rotation of the cap at the time of unscrewing.
  • the first opening indicator ring is removed after opening.
  • the document US 4,452,363 discloses a container equipped with a child-proof screw cap with a first-opening indicator ring, the child safety being achieved through diametrically opposite lateral pressures exerted on the lower part of the skirt of the cap.
  • the skirt is of conical shape and comprises a system of notches and notches which make it possible to secure and detach the first opening control ring.
  • the document US 5,836,465 describes a container equipped with a child-resistant screw cap with a first-opening indicator ring.
  • the neck of the container has a screw thread and two first locking notches below the thread, and diametrically opposed.
  • the cap is made from material allowing the skirt of the cap to be deformed under the effect of a lateral pressure.
  • the inner part of the plug has two second locking notches positioned opposite diametrically on the inner lower portion of the deformable skirt.
  • the first and second locking notches have the ability to engage the in each other when the cap is completely screwed into the neck of the container and thus prevent any rotation of the cap relative to the neck of the container unless there is deformation of said cap, then releasing the locking system.
  • the thread is multi-pitch, disengaging by a simple rotation to 180 °, or less, the cap, the collar of the associated container.
  • Such plugs have no features to ensure the controlled dehydration of the container with which they are associated, forcing then the use of separate dehydration means, to be used in applications such as for example, the packaging and the storage of moisture-sensitive products, such as in particular drugs.
  • WO 91/01924 A describes a closure device with a plug allowing it to be screwed onto a neck and a control ring.
  • the side wall of the plug is not cylindrical.
  • FR 2 339 539 A refers to a safety cap.
  • a first object of the invention is to provide a safety closure device of a container by screwing, to the test of a child on unscrewing, this device consisting of a single plug, and not, for reasons of simplicity and cost reduction, two nested plugs, functioning by deformation of the skirt of said cap, thus unlocking a means during the application of radial pressures exerted in opposition on two diametrically opposite zones of the deformable skirt of said plug of the device, followed by a rotation allowing unscrewing.
  • Another object of the invention is to provide a screw-proof device for screw-fastening a container, which is child-resistant when it is unscrewed, comprising a desiccant means integrated in said closure means and a tamper-proof indicator. of the first opening control ring type.
  • Another object of the invention is to provide a device for screw-fastening a child-resistant container by screwing, comprising a dehydrating means integrated in said closure means and a means of testimony of a first opening cooperating with the neck of the container on which the closure device is screwed.
  • the invention therefore relates to a device according to claim 1.
  • the closure device of a screw container consists of a screw cap allowing it to be screwed onto the neck of a container with which it is associated, said plug being composed of a bottom and a cylindrical side wall, having internally in the portion associated with the bottom, a thread and in the open portion, on its inner face, a first set of notches, called child safety and a ring first opening indicator, connected to the skirt by breakable bridges, said ring is also equipped on its inner face, a second set of notches, called inviolability, the first set and the second set of notches cooperating with corresponding notches positioned on the base of the container neck.
  • the cap also has in its bottom a housing for storing a composition or an element desiccant, said housing being inserted freely into the neck of the storyteller.
  • the screw-type closure device comprising a stopper and a first-opening control ring is intended for a container of the type, for example a blown-in injected flask, comprising a preferably multi-threaded, fast-pitched collar intended to receive sensitive products. moisture and must therefore be kept in a dehydrated state.
  • the plug has a cylindrical side wall formed of two zones, a first rigid and non-deformable high zone, of diameter d1, forming the body of the plug, comprising the thread, a second low zone of diameter d2, forming soft and deformable skirt, under a double lateral symmetrical pressure centripetal, the high and low zones being interconnected by a rigid shoulder.
  • the diameter d1 is smaller than the diameter d2.
  • the flexible cylindrical skirt comprises two diametrically opposite gripping surfaces located at the lower periphery of said skirt, and for accurately positioning the force exerted by the thumb and forefinger of the user of the device, when unlocking the child lock before unscrewing and opening said device.
  • This skirt is made of a material such that said skirt may be deformed, in particular ovalized, in an elastic manner, when a force is exerted on the two gripping zones and that this skirt covers its initial shape when this effort ceases.
  • Body and skirt cap are monoblock and therefore made from the same material.
  • the wall thickness of the skirt is such that it allows easy deformation when the pressure is exerted on the two gripping surfaces.
  • the wall thickness of the body comprising the thread is such that the rigidity is enhanced.
  • the outer surface of the cap body is architected so that a succession of concave shapes, facilitating the grip of the cap, also reinforces the rigidity of said body.
  • the skirt of the cap comprises, on its inner face, a first set of two notches, called child safety, respectively positioned on the internal face of the skirt of the cap, diametrically opposite one another, according to a diameter itself parallel to the plane of orientation of the two gripping surfaces and whose function is to prevent rotation of the plug when the skirt is not deformed during an attempt to unscrew the device, cooperating with two corresponding notches arranged on the collar of the associated container.
  • the two notches of the first set of notches present on the inner surface of the cap skirt are of a height such that they cooperate with the two corresponding notches located on the neck of the associated container.
  • the diametral plane passing through the steep faces of the two opposite notches of the first set of notches positioned inside the skirt of the plug is perpendicular to the diametral plane merging with the bisecting plane of symmetry of the gripping surfaces located on the lower part of the plug. the skirt of the cap.
  • the cap thus remains locked in rotation when said skirt is in its undeformed state, that is to say not ovalized.
  • the freedom of rotation of the plug is found, when said skirt is placed in an ovalized state, thus causing the breaking of the breakable bridges by rotation of the plug to the extent that the control ring of first opening is not able to follow this rotation .
  • This movement causes the uncoupling of the control ring of first opening relative to the plug.
  • the notches of the first set of notches said child safety are positioned in a plane perpendicular to the two gripping surfaces.
  • the axial plane consisting of the steep faces of the two diametrically opposite notches of the first set of notches is perpendicular to the axial plane formed by the steep faces of the two notches of the second set of notches said inviolability constituting the locking means of the control ring of first opening, located in the axial plane of symmetry of the gripping areas.
  • the two notches of the first set of so-called child safety notches are evenly distributed, also for reasons of force balancing during unscrewing of the child-resistant closure device and for reasons of ease of mold design.
  • the profile of the notches of the first set of notches present on the inner part of the skirt of the cap and on the outside of the neck of the associated container is such that it allows the screwing of the cap and this, thanks to a profile with soft ramp, causing a slight deformation of the cap skirt but does not allow its unscrewing, by a steep profile that prevents any rotation of said undistorted skirt during unscrewing of the closure device.
  • the height of the two notches positioned on the neck of the container, cooperating with the two notches of the first set of notches, is such that said notches are positioned downwardly within the area of the thread on the neck of the container, and extend to the level of the peripheral lower zone of the first opening control ring, when it is in place, all other notches having a lower height.
  • Such a height makes it possible, if it were necessary, to also block the two notches of the second set of notches present inside the first opening control ring, if they could pass over the two corresponding dedicated notches of the container neck, with which they cooperate.
  • the difference in diameter between d1 and d2 allows an optimized contact surface and homogeneous over the entire height of the notches and enhances child safety.
  • two additional tamper evident notches positioned on the inside of the ring are provided to cooperate with the lower portion of corresponding notches positioned on the neck of the container. They are therefore positioned in a plane perpendicular to the first set of tamper-evident notches.
  • the cap of the child-resistant closure device comprises a tamper-proof ring of first opening, made integral, by means of breakable bridges, of the skirt of the cap, said bridges being positioned on the lower annular periphery. the skirt of the cap.
  • the first-opening indicator ring has, on its inner surface, a second set of two notches, called tamper-proof, whose function is to prevent its rotation, during the unscrewing of the device, cooperating with the two corresponding notches arranged on the neck of the associated container, and this, in order to cause breaking shear bridges.
  • the two notches of the second set of notches present on the inner surface of said ring, when integral with the plug, are of a height such that they cooperate with the two corresponding notches present on the neck of the container.
  • the breaking of the breakable bridges connecting the upper circumference of the ring to the lower circumference of the skirt of the plug is effected by shearing during the first opening and thus makes it possible to materialize the inviolability.
  • the two notches of the second set of notches are regularly distributed over the circumference of the ring and on the neck of the container with regard to their correspondents with whom they cooperate.
  • the two notches of the second set of notches said inviolability are positioned to the right of the two gripping surfaces.
  • the diametral plane passing through the two steep faces of the two notches of the second set of notches, positioned inside the first opening control ring is in the diametral plane of symmetry of the two diametrically opposite gripping zones, positioned on the outer surface of the skirt of the cap.
  • This engagement of the notches of the second set of notches is reinforced by the fact of the pressure exerted on the two diametrically opposite gripping zones, and positioned at the right of these two notches of the second set of notches cooperating with corresponding notches positioned on the neck of the container.
  • the presence of a set of two tamper-evident notches positioned on either side of the gripping zones is intended to ensure that the tamper-evident notches are engaged with the corresponding notches of the neck of the container, the deformation of the outer skirt being mainly transmitted to the tamper-proof ring by the tamper-proof bridges.
  • the first opening control ring is connected to the skirt by breakable bridges, so that the deformation of the skirt does not cause an equivalent deformation of the ring.
  • the breakable bridges are preferably four in number, distributed in proximity and on either side of each notch of the second set of notches located on the inner face of the ring.
  • the bridges taken in pairs, are located near and on either side of the notches of the second set of notches called inviolability.
  • This arrangement makes it possible to transmit the deformation of the gripping zones to the first opening control ring, during the ovalization caused by the skirt, and therefore to better lock the ring in its rotation, thereby facilitating the breakage of the bridges.
  • This provision is also preferred for reasons of balancing shear force during the first unscrewing child-resistant closure device, and also for reasons of ease of mold design.
  • the two notches of the second set of notches are distributed at 180 ° on the circumference of the neck of the container and on the circumference of the control ring of first opening, the diametral plane defining the abrupt face of these notches being perpendicular to the diametral plane defining the face steep two notches of the first set of notches.
  • This regular circumferential distribution allows a balancing of effort during the unscrewing of the child-resistant closure device. Such a regular distribution is also so for reasons of ease of mold design.
  • the profile of the notches of the second set of notches present on the inner part of the first opening control ring and on the outside of the neck of the associated container is such that it allows the screwing of the plug and the positioning of the connected ring and this , thanks to a profile with a soft ramp, causing deformation of the tamper-proof ring of first opening, but does not allow its unscrewing without breaking of the bridges connecting the control ring of first opening to the lower part of the skirt of the plug, by a steep profile which prevents any rotation of said ring during unscrewing of the closure device.
  • the profiles of the notches of the first and second set of notches when observed according to a sectional plane perpendicular to the axis of rotation, comprise a gentle ramp, followed by a steep slope, the profiles of notches with which they cooperate being arranged in an antagonistic manner, so that, for two cooperating notches, the soft slopes slide on one another during the closing and the steep slopes block at the opening.
  • the notches of the second set of notches arranged on the neck of the container are located below the notches of the first set of notches ensuring the child safety function. They are of a height less than that of the notches of the first set of notches and correspond substantially to the height of the control ring of first opening.
  • the gripping surfaces are defined on the flexible portion of the skirt of the plug to materialize the points of application of the forces.
  • the first opening control ring is connected to the outer skirt of the cap by two sets of two breakable bridges, each breakable bridge being located on either side of the two gripping surfaces.
  • first opening control ring connected to the skirt by the two sets of breakable bridges deforms in the same manner as the skirt in the gripping surfaces but does not undergo a deformation equivalent to that of the skirt in the perpendicular plane, because not connected in these areas to the skirt by bridges.
  • the seal between the inner part of the neck of the container and the screw cap is ensured by means of a cylindrical element, coaxial and concentric with the stopper, positioned inside the stopper, resting on the bottom said plug.
  • This cylindrical element adjusts, via a terminal chamfer, in the neck of the container in that its diameter external is adjusted to the inner diameter of the neck of the container and that it is of a certain height.
  • the closure of the child-resistant closure device further comprises a desiccant means of attached type, the desiccant being placed in a suitable housing, located on the bottom of the inner cap, said housing being closed by a closure means not sealed to ambient humidity, for example, a porous cardboard membrane, to ensure rapid drying of moisture sensitive products and packaged in the container.
  • a desiccant means of attached type the desiccant being placed in a suitable housing, located on the bottom of the inner cap, said housing being closed by a closure means not sealed to ambient humidity, for example, a porous cardboard membrane, to ensure rapid drying of moisture sensitive products and packaged in the container.
  • the housing is thus coaxial and concentric with the cap, and is inserted freely into the neck of the container.
  • the dehydrating agent used in the container is selected from the group consisting of silica gels, molecular sieves, diatoms or other desiccants, in powder form or deposited on a powdery support. They can also be in the form of mixtures
  • the desiccant may also be a capsule contained in said housing and made of a desiccant polymer material containing or not desiccant fillers or more generally of any material containing a desiccant.
  • the plug of the device according to the invention is produced by injection molding from thermoplastic polymers, preferably chosen from the group consisting of polyethylenes, polypropylenes, copolymers of ethylene / propylene used alone or in mixture, formulated or not.
  • thermoplastic polymers may also be used such as polyamides (PA), polystyrenes (PS), acrylonitrile-butadiene-styrene copolymers (ABS), styrene-acrylonitrile copolymers (SAN), polymethyl methacrylates (PMMA), polyethylene terephthalates (PET), polybutyleneterephthalates (PBT), polyacetals (POM), polyvinylchlorides (PVC), polycarbonates (PC).
  • PA polyamides
  • PS polystyrenes
  • ABS acrylonitrile-butadiene-styrene copolymers
  • SAN styrene-acrylonitrile copolymers
  • PMMA polymethyl methacrylates
  • PET polyethylene terephthalates
  • PBT polybutyleneterephthalates
  • POM polyacetals
  • PVC polyvinylchlorides
  • PC polycarbonates
  • Thermoplastic elastomers may be added to such compositions formulated from the aforementioned thermoplastic polymers.
  • the figure 1 is a perspective view from above of the container (1) on which is screwed the child-resistant closure device and first-opening control ring (16).
  • the container comprises a neck (2) equipped with a screw thread (3) and a first set of two notches (4) ensuring the child safety function, when cooperating with the corresponding notches located on the inside of the skirt (11) of the cap of the closure device, only one of which is visible on the figure 1 and a second set of two notches (7) providing the locking function of the first opening control ring, when cooperating with the corresponding notches located on the inside of said ring, only one of which is also visible on the figure 1 .
  • the notch (4) of the first set of notches has a profile with a soft ramp, materialized by the face (5) completed by an abrupt profile materialized by the face (6).
  • the notch (7) of the second set of notches comprises a profile with a soft ramp, materialized by the face (8) completed by an abrupt profile materialized by the face (9).
  • the figure 2 is a bottom perspective view of the closing device more specifically the plug.
  • the plug consists of a cylindrical side wall formed of two zones, a first high zone (10) rigid and non-deformable, of diameter d1, forming the body of the plug, comprising the thread, a second low zone of diameter d2, forming a flexible and deformable skirt (11), under a double centripetal lateral symmetrical pressure, the high and low zones being interconnected by a rigid shoulder (24).
  • the skirt (11) is equipped with two gripping surfaces (12) consisting of a flat part of which only one is visible.
  • the cap also comprises a housing (20) for inserting a desiccant material concealed by a porous membrane (21).
  • the stopper also comprises a first-opening indicator ring (16) highlighting in particular a notch (13) of the first set of detents positioned inside the skirt (11) of the stopper and a notch (17) positioned at 90.degree. ° of the previous notch, and belonging to the second set of notches positioned inside the first opening control ring (16).
  • the notch (13) of the first set of notches located on the inside of the inner face of the skirt (11) of the plug has a profile with a soft ramp, materialized by the face (14) completed by an abrupt profile materialized by the face (15).
  • the notch (17) of the second set of notches located on the inside of the internal face of the first opening control ring (16) has a profile with a soft ramp, materialized by the face (18) completed by an abrupt profile materialized by the face (19).
  • the breakable bridges (22) connect the first opening control ring (16) to the skirt (11) of the plug.
  • the figure 3 represents a cross-section of the desiccant closing device, child safety and first-opening control ring (16), mounted by screwing on the corresponding container (1) according to the invention.
  • the first opening control ring (16) is further secured by means of the breakable bridges (22) of the skirt (11) of the plug (10).
  • the stopper also comprises a cylindrical sealing zone (23) fitting into the neck (2) of the container (1) equipped with its thread (3).
  • the plug also comprises, in its bottom, a housing (20) filled with a desiccant material retained by means of a porous membrane (21).

Abstract

The invention is a child-safe closure device for a container (1) including i) a stopper having a base and a cylindrical side wall, the inside face of which has a screwthread and a first series of teeth (13), and ii) a collar (16) connected to the side wall and equipped with a second series of teeth (17), these two series of teeth engaged with corresponding series of teeth (4,7) positioned on a base of the neck (2) of the container (1), wherein a) the cylindrical side wall is made of a rigid zone (10), and a skirt (11), or a flexible and deformable zone, and b) the collar (16) is attached to the skirt (11) by frangible bridges (22), such that deformation of the skirt (11) does not result in deformation of the collar (16).

Description

Domaine de l'inventionField of the invention

L'invention concerne un dispositif de fermeture de sécurité d'un conteneur dont l'embouchure est munie d'un pas de vis externe, dispositif à l'épreuve d'un jeune enfant, comportant de surcroît un témoin de première ouverture et un élément déshydratant.The invention relates to a safety closure device for a container whose mouthpiece is provided with an external screw thread, a device that is child-proof and also includes a first-opening indicator and an element desiccant.

L'invention concerne plus particulièrement un dispositif de fermeture de sécurité par vissage pour conteneur, comprenant un seul bouchon à visser sur ledit conteneur, ledit bouchon ayant capacité à se désenclencher d'une position de blocage par l'intermédiaire d'une double pression latérale, ledit dispositif étant équipé de surcroît d'une bague témoin de première ouverture coopérant avec le col du conteneur sur lequel le dispositif de fermeture est monté et d'un élément déshydratant.The invention more particularly relates to a safety device for screw-fastening for a container, comprising a single cap to be screwed onto said container, said cap having the capacity to disengage from a locking position via a double lateral pressure. said device being further equipped with a first-opening indicator ring cooperating with the neck of the container on which the closure device is mounted and with a desiccant element.

Etat de la techniqueState of the art

Les dispositifs de fermeture offrant une sécurité pour enfant, de type bouchons à vis, peuvent être de différente nature. En particulier la sécurité peut être, soit la conséquence d'une déformation par pression latérale opposée du bouchon permettant un déblocage de la fonction dévissage, suivi de la rotation du bouchon, soit un déplacement vertical enclenchant un dispositif permettant le dévissage, ce mouvement vertical devant être conduit simultanément avec une rotation.Closing devices offering child safety, such as screw caps, can be of different types. In particular, the security can be either the consequence of a deformation by opposite lateral pressure of the plug allowing unblocking of the unscrewing function, followed by the rotation of the plug, or a vertical displacement engaging a device allowing the unscrewing, this vertical movement in front of be driven simultaneously with a rotation.

Des bouchons à sécurité enfant fonctionnant sur le principe d'un double mouvement vertical et de rotation équipés d'une bague témoin de première ouverture existent, mais sont relativement complexes à mettre en oeuvre dans la mesure où ils impliquent la présence et d'un bouchon interne à visser sur ledit conteneur et d'un bouchon externe coaxial recouvrant intégralement le bouchon interne, le bouchon externe ayant capacité à entraîner le bouchon interne par l'intermédiaire d'un système d'encliquetage, lorsque sont pratiquées, sur le bouchon externe, une pression axiale et une rotation.Child-resistant plugs operating on the principle of a double vertical movement and rotation equipped with a first-opening indicator ring exist, but are relatively complex to implement insofar as they involve the presence and a plug internal screw on said container and a coaxial outer cap integrally covering the inner cap, the outer cap having ability to drive the inner cap through a snap-in system, when are performed on the outer cap, axial pressure and rotation.

Les documents suivants illustrent les différentes solutions techniques proposées dans le cas de bouchons pour lesquels une déformation par pression latérale radiale, exercée en opposition, sur la jupe du bouchon, permet le déblocage de la fonction dévissage.The following documents illustrate the different technical solutions proposed in the case of plugs for which a deformation by radial lateral pressure, exerted in opposition, on the skirt of the plug, allows the unlocking of the unscrewing function.

Le document WO9850283 décrit un bouchon à vis à sécurité enfant du type simple bouchon, opérant sur le mode d'une double pression radiale opposée et d'une rotation permettant le dévissage, ledit bouchon étant équipé d'une bague témoin de première ouverture. Le bouchon comporte, sur sa périphérie inférieure externe, c'est-à-dire de sa jupe, deux zones diamétralement opposées sur lesquelles peuvent être exercées des pressions latérales. Des crans de sécurité enfant se présentant comme des protubérances, vers l'intérieur du bouchon, permettent le blocage en rotation du bouchon. Ces crans sont positionnés à 90° des zones de pression et se prolongent, vers le bas, au niveau inférieur de la jupe du bouchon. Un premier et un second cran de sécurité enfant sont placés sur le col du conteneur spécifique auquel le bouchon est associé, et sont positionnés au-dessus de la bague témoin de première ouverture. La liaison entre la bague témoin de première ouverture et la partie inférieure du bouchon est assurée par des pontets sécables positionnés à 45° par rapport aux zones de pression. Il importe de s'affranchir de la sécurité enfant avant que la bague témoin de première ouverture ne puisse être désolidarisée par rupture des pontets sécable, rupture obtenue par rotation contrariée de ladite bague lors de la rotation du bouchon au moment du dévissage. La bague témoin de première ouverture est retirée après ouverture.The document WO9850283 discloses a child-resistant screw cap of the simple plug type, operating in the mode of a double opposite radial pressure and a rotation allowing unscrewing, said cap being equipped with a first opening control ring. The cap comprises, on its lower outer periphery, that is to say, its skirt, two diametrically opposite zones on which can be exerted lateral pressures. Child safety notches presenting as protuberances, towards the inside of the stopper, allow the locking in rotation of the stopper. These notches are positioned at 90 ° of the pressure zones and extend downwardly to the lower level of the cap skirt. First and second child safety notches are placed on the neck of the specific container to which the stopper is associated, and are positioned above the first-opening indicator ring. The connection between the first opening control ring and the lower part of the plug is ensured by breakable bridges positioned at 45 ° with respect to the pressure zones. It is important to overcome the child safety before the first opening indicator ring can not be detached by rupture of the breakable bridges, rupture obtained by rotational rotation of said ring during the rotation of the cap at the time of unscrewing. The first opening indicator ring is removed after opening.

Le document U.S. 4,452,363 décrit un conteneur équipé d'un bouchon à vis à sécurité enfant avec bague témoin de première ouverture, la sécurité enfant étant obtenue par l'intermédiaire de pressions latérales diamétralement opposées exercées sur la partie inférieure de la jupe du bouchon. La jupe est de forme conique et comporte un système de crans et d'encoches qui permettent de solidariser et de désolidariser la bague témoin de première ouverture.The document US 4,452,363 discloses a container equipped with a child-proof screw cap with a first-opening indicator ring, the child safety being achieved through diametrically opposite lateral pressures exerted on the lower part of the skirt of the cap. The skirt is of conical shape and comprises a system of notches and notches which make it possible to secure and detach the first opening control ring.

Le document US 5,836,465 décrit un conteneur équipé d'un bouchon à vis à sécurité enfant avec bague témoin de première ouverture. Le col du conteneur comporte un pas de vis et deux premiers crans de blocage en dessous du pas de vis, et diamétralement opposés. Le bouchon est réalisé à partir de matière permettant à la jupe du bouchon d'être déformée sous l'effet d'une pression latérale. La partie interne du bouchon comporte deux seconds crans de blocage positionnés opposés diamétralement sur la partie inférieure interne de la jupe déformable. Les premiers et second crans de blocage ont capacité à s'enclencher les uns dans les autres lorsque le bouchon est totalement vissé dans le col du conteneur et ainsi empêchent toute rotation du bouchon par rapport au col du conteneur sauf s'il y a déformation dudit bouchon, libérant alors le système de blocage. Le pas de vis est à pas multiple, permettant de désengager par une simple rotation à 180°, ou moins, le bouchon, du col du conteneur associé.The document US 5,836,465 describes a container equipped with a child-resistant screw cap with a first-opening indicator ring. The neck of the container has a screw thread and two first locking notches below the thread, and diametrically opposed. The cap is made from material allowing the skirt of the cap to be deformed under the effect of a lateral pressure. The inner part of the plug has two second locking notches positioned opposite diametrically on the inner lower portion of the deformable skirt. The first and second locking notches have the ability to engage the in each other when the cap is completely screwed into the neck of the container and thus prevent any rotation of the cap relative to the neck of the container unless there is deformation of said cap, then releasing the locking system. The thread is multi-pitch, disengaging by a simple rotation to 180 °, or less, the cap, the collar of the associated container.

De tels bouchons ne comportent toutefois pas de fonctionnalités permettant d'assurer la déshydratation contrôlée du conteneur auxquels ils sont associés, forçant alors l'utilisation de moyens de déshydratation séparés, pour pouvoir être utilisés dans des applications telles que par exemple, le conditionnement et le stockage de produits sensibles à l'humidité, comme en particulier des médicaments.Such plugs, however, have no features to ensure the controlled dehydration of the container with which they are associated, forcing then the use of separate dehydration means, to be used in applications such as for example, the packaging and the storage of moisture-sensitive products, such as in particular drugs.

WO 91/01924 A décrit un dispositif de fermeture avec un bouchon lui permettant d'être vissé sur un col et une bague témoin. La paroi latérale du bouchon n'est pas cylindrique. WO 91/01924 A describes a closure device with a plug allowing it to be screwed onto a neck and a control ring. The side wall of the plug is not cylindrical.

FR 2 339 539 A se rapporte à un bouchon de sécurité. FR 2 339 539 A refers to a safety cap.

Objectifs de l'inventionObjectives of the invention

De nombreux objectifs sont dès lors assignés au dispositif selon l'invention, de telle sorte qu'il puisse apporter des solutions aménagées et améliorées par rapport aux divers moyens mis en oeuvre dans les dispositifs de fermeture de sécurité connus destinés à des emballages de produits sensibles à l'humidité.Many objectives are therefore assigned to the device according to the invention, so that it can provide improved and improved solutions compared to the various means used in known safety closure devices for sensitive product packaging. to moisture.

Un premier objet de l'invention est de réaliser un dispositif de fermeture de sécurité d'un conteneur par vissage, à l'épreuve d'un enfant au dévissage, ce dispositif se composant d'un seul bouchon, et non pas, pour des raisons de simplicité et de réduction de coûts, de deux bouchons emboîtés, fonctionnant par déformation de la jupe dudit bouchon, débloquant ainsi un moyen d'encliquetage, et ce lors de l'application de pressions radiales exercées en opposition sur deux zones diamétralement opposées de la jupe déformable du dit bouchon du dispositif, suivi d'une rotation permettant le dévissage.A first object of the invention is to provide a safety closure device of a container by screwing, to the test of a child on unscrewing, this device consisting of a single plug, and not, for reasons of simplicity and cost reduction, two nested plugs, functioning by deformation of the skirt of said cap, thus unlocking a means during the application of radial pressures exerted in opposition on two diametrically opposite zones of the deformable skirt of said plug of the device, followed by a rotation allowing unscrewing.

Un autre objet de l'invention est de réaliser un dispositif de fermeture de sécurité d'un conteneur par vissage, à l'épreuve d'un enfant au dévissage, comportant un moyen déshydratant intégré dans ledit moyen de fermeture et un témoin d'inviolabilité de type bague témoin de première ouverture.Another object of the invention is to provide a screw-proof device for screw-fastening a container, which is child-resistant when it is unscrewed, comprising a desiccant means integrated in said closure means and a tamper-proof indicator. of the first opening control ring type.

Un autre objet de l'invention est de réaliser un dispositif de fermeture de sécurité d'un conteneur par vissage, à l'épreuve d'un enfant au dévissage comportant un moyen déshydratant intégré dans ledit moyen de fermeture et un moyen de témoignage d'une première ouverture coopérant avec le col du conteneur sur lequel le dispositif de fermeture est vissé.Another object of the invention is to provide a device for screw-fastening a child-resistant container by screwing, comprising a dehydrating means integrated in said closure means and a means of testimony of a first opening cooperating with the neck of the container on which the closure device is screwed.

Sommaire de l'inventionSummary of the invention

Dès lors l'invention concerne un dispositif selon la revendication 1.The invention therefore relates to a device according to claim 1.

Description détaillée de l'inventionDetailed description of the invention

Le dispositif de fermeture d'un conteneur à vis, selon l'invention, se compose d'un bouchon à pas de vis lui permettant d'être vissé sur le col d'un conteneur auquel il est associé, ledit bouchon se composant d'un fond et d'une paroi latérale cylindrique, comportant en interne dans la partie associée au fond, un pas de vis et dans la partie ouverte, sur sa face interne, un premier jeu de crans, dit de sécurité enfant ainsi qu'une bague témoin de première ouverture, reliée à la jupe par des pontets sécables, ladite bague étant également équipée, sur sa face interne, d'un second jeu de crans, dit d'inviolabilité, le premier jeu et le second jeu de crans coopérant avec des crans correspondants positionnés sur la base du col du conteneur.The closure device of a screw container, according to the invention, consists of a screw cap allowing it to be screwed onto the neck of a container with which it is associated, said plug being composed of a bottom and a cylindrical side wall, having internally in the portion associated with the bottom, a thread and in the open portion, on its inner face, a first set of notches, called child safety and a ring first opening indicator, connected to the skirt by breakable bridges, said ring is also equipped on its inner face, a second set of notches, called inviolability, the first set and the second set of notches cooperating with corresponding notches positioned on the base of the container neck.

Le bouchon comporte également dans son fond un logement permettant de stocker une composition ou un élément déshydratant, ledit logement venant s'insérer librement dans le col du conteur.The cap also has in its bottom a housing for storing a composition or an element desiccant, said housing being inserted freely into the neck of the storyteller.

Le dispositif de fermeture à pas de vis comprenant bouchon et bague témoin de première ouverture est destiné à un conteneur de type, par exemple flacon injecté soufflé, comportant un col préférentiellement à plusieurs filets et à pas rapide, destiné à recevoir des produits sensibles à l'humidité et qu'il faut dès lors maintenir dans un état déshydraté.The screw-type closure device comprising a stopper and a first-opening control ring is intended for a container of the type, for example a blown-in injected flask, comprising a preferably multi-threaded, fast-pitched collar intended to receive sensitive products. moisture and must therefore be kept in a dehydrated state.

Selon l'invention, le bouchon comporte une paroi latérale cylindrique formée de deux zones, une première zone haute rigide et non déformable, de diamètre d1, formant corps du bouchon, comportant le pas de vis, une seconde zone basse de diamètre d2, formant jupe souple et déformable, sous une double pression symétrique latérale centripète, les zones haute et basse étant reliées entre elles par un épaulement rigide. Le diamètre d1 est inférieur au diamètre d2.According to the invention, the plug has a cylindrical side wall formed of two zones, a first rigid and non-deformable high zone, of diameter d1, forming the body of the plug, comprising the thread, a second low zone of diameter d2, forming soft and deformable skirt, under a double lateral symmetrical pressure centripetal, the high and low zones being interconnected by a rigid shoulder. The diameter d1 is smaller than the diameter d2.

La jupe cylindrique souple comprend deux surfaces de préhension diamétralement opposées situées à la périphérie inférieure de ladite jupe, et permettant de positionner précisément l'effort exercé par le pouce et l'index de l'utilisateur du dispositif, lors du déblocage de la sécurité enfant avant dévissage et ouverture dudit dispositif. Cette jupe est faite d'un matériau tel que ladite jupe peut être déformée, en particulier ovalisée, de manière élastique, lorsqu'un effort est exercé sur les deux zones de préhension et que cette jupe recouvre sa forme initiale lorsque cesse cet effort. Corps et jupe du bouchon sont monobloc et donc fabriqués à partir du même matériau.The flexible cylindrical skirt comprises two diametrically opposite gripping surfaces located at the lower periphery of said skirt, and for accurately positioning the force exerted by the thumb and forefinger of the user of the device, when unlocking the child lock before unscrewing and opening said device. This skirt is made of a material such that said skirt may be deformed, in particular ovalized, in an elastic manner, when a force is exerted on the two gripping zones and that this skirt covers its initial shape when this effort ceases. Body and skirt cap are monoblock and therefore made from the same material.

D'une manière préférentielle, l'épaisseur de paroi de la jupe est telle qu'elle permette sa déformation facile lorsque la pression est exercée sur les deux surfaces de préhension. A contrario, l'épaisseur de paroi du corps comprenant le pas de vis est telle que la rigidité est renforcée. De plus la surface externe du corps du bouchon est architecturée de manière à ce qu'une succession de formes concaves, facilitant la prise en main du bouchon, renforce également la rigidité du dit corps.Preferably, the wall thickness of the skirt is such that it allows easy deformation when the pressure is exerted on the two gripping surfaces. In contrast, the wall thickness of the body comprising the thread is such that the rigidity is enhanced. In addition the outer surface of the cap body is architected so that a succession of concave shapes, facilitating the grip of the cap, also reinforces the rigidity of said body.

Le maintien de la rigidité du corps du bouchon alors que la jupe est déformable et déformée par pressions latérales permet de ne pas risquer de détériorer la performance de dévissage et de vissage du pas de vis.Maintaining the rigidity of the body of the plug while the skirt is deformable and deformed by lateral pressures makes it possible to avoid damaging the performance of unscrewing and screwing of the thread.

La jupe du bouchon comporte, sur sa face interne, un premier jeu de deux crans, dit de sécurité enfant, positionnés respectivement sur la face interne de la jupe du bouchon, diamétralement opposés l'un à l'autre, selon un diamètre lui même parallèle au plan d'orientation des deux surfaces de préhension et dont la fonction est d'empêcher la rotation du bouchon lorsque la jupe n'est pas déformée lors d'une tentative de dévissage du dispositif, en coopérant avec deux crans correspondants disposés sur le col du conteneur associé. Par contre lorsque la jupe est déformée, c'est-à-dire ovalisée par double pression exercée sur les deux surfaces de préhension diamétralement opposées, situées à la périphérie inférieure de la jupe du bouchon, alors il y a écartement des deux crans du premier jeu de crans solidaires de la jupe, par rapport aux deux crans correspondants situés sur le col du conteneur et dès lors, possibilité de rotation et donc de dévissage du dispositif.The skirt of the cap comprises, on its inner face, a first set of two notches, called child safety, respectively positioned on the internal face of the skirt of the cap, diametrically opposite one another, according to a diameter itself parallel to the plane of orientation of the two gripping surfaces and whose function is to prevent rotation of the plug when the skirt is not deformed during an attempt to unscrew the device, cooperating with two corresponding notches arranged on the collar of the associated container. By cons when the skirt is deformed, that is to say ovalized by double pressure exerted on the two diametrically opposite gripping surfaces, located at the lower periphery of the skirt of the cap, then there is spacing of the two notches of the first set of notches integral with the skirt, relative to the two corresponding notches located on the neck of the container and therefore, possibility of rotation and thus unscrewing of the device.

Les deux crans du premier jeu de crans présents sur la surface interne de la jupe du bouchon sont d'une hauteur telle qu'ils coopèrent avec les deux crans correspondants situés sur le col du conteneur associé.The two notches of the first set of notches present on the inner surface of the cap skirt are of a height such that they cooperate with the two corresponding notches located on the neck of the associated container.

Le plan diamétral passant par les faces abruptes des deux crans opposés du premier jeu de crans positionnés à l'intérieur de la jupe du bouchon est perpendiculaire au plan diamétral se confondant avec le plan de symétrie bissecteur des surfaces de préhension situées sur la partie inférieure de la jupe du bouchon.The diametral plane passing through the steep faces of the two opposite notches of the first set of notches positioned inside the skirt of the plug is perpendicular to the diametral plane merging with the bisecting plane of symmetry of the gripping surfaces located on the lower part of the plug. the skirt of the cap.

Le bouchon reste ainsi bloqué en rotation lorsque ladite jupe est dans son état non déformé, c'est-à-dire non ovalisé. La liberté de rotation du bouchon est retrouvée, lorsque ladite jupe est mise dans un état ovalisé, provoquant ainsi l'arrachage des pontets sécables par rotation du bouchon dans la mesure où la bague témoin de première ouverture n'a pas capacité à suivre cette rotation. Ce mouvement engendre la désolidarisation de la bague témoin de première ouverture par rapport au bouchon.The cap thus remains locked in rotation when said skirt is in its undeformed state, that is to say not ovalized. The freedom of rotation of the plug is found, when said skirt is placed in an ovalized state, thus causing the breaking of the breakable bridges by rotation of the plug to the extent that the control ring of first opening is not able to follow this rotation . This movement causes the uncoupling of the control ring of first opening relative to the plug.

Les crans du premier jeux de crans dit de sécurité enfant sont positionnés dans un plan perpendiculaire aux deux surfaces de préhension. Préférentiellement, le plan axial constitué par les faces abruptes des deux crans diamétralement opposés du premier jeu de crans est perpendiculaire au plan axial formé par les faces abruptes des deux crans du second jeu de crans dit d'inviolabilité constituant les moyens de blocage de la bague témoin de première ouverture, situés dans le plan axial de symétrie des zones de préhension. Les deux crans du premier jeu de crans dit de sécurité enfant sont répartis de manière régulière, également pour des raisons d'équilibrage d'effort lors du dévissage du dispositif de fermeture à sécurité enfant et pour des raisons de facilité de conception de moule. Le positionnement suivant deux plans perpendiculaires des crans d'inviolabilité par rapport aux crans de sécurité enfant permet de limiter à une faible valeur de dépouille l'angle d'orientation des faces abruptes des crans, pour des raisons de facilité de moulage et de meilleur blocage d'un cran sur son correspondant.The notches of the first set of notches said child safety are positioned in a plane perpendicular to the two gripping surfaces. Preferably, the axial plane consisting of the steep faces of the two diametrically opposite notches of the first set of notches is perpendicular to the axial plane formed by the steep faces of the two notches of the second set of notches said inviolability constituting the locking means of the control ring of first opening, located in the axial plane of symmetry of the gripping areas. The two notches of the first set of so-called child safety notches are evenly distributed, also for reasons of force balancing during unscrewing of the child-resistant closure device and for reasons of ease of mold design. Positioning in two perpendicular planes of the tamper-evident notches with respect to the child safety notches makes it possible to limit the angle of orientation of the steep faces of the notches to a small clearance value, for reasons of ease of molding and better locking. a notch on his correspondent.

Le profil des crans du premier jeu de crans présents sur la partie intérieure de la jupe du bouchon et sur l'extérieur du col du conteneur associé est tel qu'il permet le vissage du bouchon et ce, grâce à un profil avec rampe douce, entraînant une légère déformation de la jupe du bouchon mais ne permet pas son dévissage, de par un profil abrupt qui empêche toute rotation de ladite jupe non déformée lors du dévissage du dispositif de fermeture.The profile of the notches of the first set of notches present on the inner part of the skirt of the cap and on the outside of the neck of the associated container is such that it allows the screwing of the cap and this, thanks to a profile with soft ramp, causing a slight deformation of the cap skirt but does not allow its unscrewing, by a steep profile that prevents any rotation of said undistorted skirt during unscrewing of the closure device.

La hauteur des deux crans positionnés sur le col du conteneur, coopérant avec les deux crans du premier jeu de crans, est telle que lesdits crans se positionnent vers le bas en deçà de la zone du pas de vis sur le col du conteneur, et se prolongent jusqu'au niveau de la zone inférieure périphérique de la bague témoin de première ouverture, lorsque celle-ci est en place, tous les autres crans ayant une hauteur inférieure.The height of the two notches positioned on the neck of the container, cooperating with the two notches of the first set of notches, is such that said notches are positioned downwardly within the area of the thread on the neck of the container, and extend to the level of the peripheral lower zone of the first opening control ring, when it is in place, all other notches having a lower height.

Une telle hauteur permet, s'il en était besoin, de bloquer également les deux crans du second jeu de cran présents à l'intérieur de la bague témoin de première ouverture, s'ils arrivaient à passer par dessus les deux crans dédiés correspondants du col du conteneur, avec lesquels ils coopèrent.Such a height makes it possible, if it were necessary, to also block the two notches of the second set of notches present inside the first opening control ring, if they could pass over the two corresponding dedicated notches of the container neck, with which they cooperate.

De plus, la différence de diamètre entre d1 et d2 autorise une surface de contact optimisée et homogène sur toute la hauteur des crans et renforce la sécurité enfant.In addition, the difference in diameter between d1 and d2 allows an optimized contact surface and homogeneous over the entire height of the notches and enhances child safety.

Dans une variante, deux crans d'inviolabilité additionnels positionnés sur l'intérieur de la bague, sont prévus pour coopérer avec la partie inférieure des crans correspondants positionnés sur le col du conteneur. Ils sont par conséquent positionnés dans un plan perpendiculaire au premier jeu de crans d'inviolabilité.Alternatively, two additional tamper evident notches positioned on the inside of the ring, are provided to cooperate with the lower portion of corresponding notches positioned on the neck of the container. They are therefore positioned in a plane perpendicular to the first set of tamper-evident notches.

Le bouchon du dispositif de fermeture à sécurité enfant, selon l'invention, comporte une bague d'inviolabilité témoin de première ouverture, rendue solidaire, au moyen de pontets sécables, de la jupe du bouchon, lesdits pontets étant positionnés sur la périphérie annulaire inférieure de la jupe du bouchon.The cap of the child-resistant closure device, according to the invention, comprises a tamper-proof ring of first opening, made integral, by means of breakable bridges, of the skirt of the cap, said bridges being positioned on the lower annular periphery. the skirt of the cap.

La bague témoin de première ouverture possède, sur sa surface interne, un second jeu de deux crans, dit d'inviolabilité, dont la fonction est d'empêcher sa rotation, lors du dévissage du dispositif, en coopérant avec les deux crans correspondants disposés sur le col du conteneur associé, et ce, en vue de provoquer la rupture par cisaillement des pontets.The first-opening indicator ring has, on its inner surface, a second set of two notches, called tamper-proof, whose function is to prevent its rotation, during the unscrewing of the device, cooperating with the two corresponding notches arranged on the neck of the associated container, and this, in order to cause breaking shear bridges.

Les deux crans du second jeu de crans présents sur la surface interne de ladite bague, lorsque solidaires du bouchon, sont d'une hauteur telle qu'ils coopèrent avec les deux crans correspondants présents sur le col du conteneur.The two notches of the second set of notches present on the inner surface of said ring, when integral with the plug, are of a height such that they cooperate with the two corresponding notches present on the neck of the container.

La rupture des pontets sécables reliant la circonférence supérieure de la bague à la circonférence inférieure de la jupe du bouchon s'effectue par cisaillement lors de la première ouverture et permet ainsi de matérialiser l'inviolabilité. Les deux crans du second jeu de crans sont régulièrement répartis sur la circonférence de la bague et sur le col du conteneur pour ce qui est de leurs correspondants avec lesquels ils coopèrent.The breaking of the breakable bridges connecting the upper circumference of the ring to the lower circumference of the skirt of the plug is effected by shearing during the first opening and thus makes it possible to materialize the inviolability. The two notches of the second set of notches are regularly distributed over the circumference of the ring and on the neck of the container with regard to their correspondents with whom they cooperate.

Les deux crans du second jeu de crans dit d'inviolabilité sont positionnés au droit des deux surfaces de préhension. Préférentiellement le plan diamétral passant par les deux faces abruptes des deux crans du second jeu de crans, positionnés à l'intérieur de la bague témoin de première ouverture, est dans le plan diamétral de symétrie des deux zones de préhension diamétralement opposées, positionnées sur la surface externe de la jupe du bouchon. Les deux crans du second jeu de crans positionnés sur la surface interne de la bague témoin de première ouverture, enclenchés dans les deux crans correspondants positionnés sur le col du conteneur, font que la bague reste bloquée en rotation, provoquant dès lors l'arrachage des pontets sécables et donc la désolidarisation de la bague par rapport au bouchon. Cet enclenchement des crans du second jeu de crans est renforcé par le fait de la pression exercée sur les deux zones de préhension diamétralement opposées, et positionnées au droit de ces deux crans du second jeu de crans coopérant avec les crans correspondants positionnés sur le col du conteneur. La présence d'un jeu de deux crans d'inviolabilité positionnés de part et d'autre des zones de préhension a pour objet de garantir que les crans d'inviolabilité sont en prise avec les crans correspondants du col du conteneur, la déformation de la jupe extérieure étant majoritairement transmise à la bague d'inviolabilité par les pontets d'inviolabilité.The two notches of the second set of notches said inviolability are positioned to the right of the two gripping surfaces. Preferably the diametral plane passing through the two steep faces of the two notches of the second set of notches, positioned inside the first opening control ring, is in the diametral plane of symmetry of the two diametrically opposite gripping zones, positioned on the outer surface of the skirt of the cap. The two notches of the second set of notches positioned on the inner surface of the first opening control ring, engaged in the two corresponding notches positioned on the neck of the container, cause the ring to remain locked in rotation, thus causing the uprooting of breakable bridges and thus the separation of the ring relative to the plug. This engagement of the notches of the second set of notches is reinforced by the fact of the pressure exerted on the two diametrically opposite gripping zones, and positioned at the right of these two notches of the second set of notches cooperating with corresponding notches positioned on the neck of the container. The presence of a set of two tamper-evident notches positioned on either side of the gripping zones is intended to ensure that the tamper-evident notches are engaged with the corresponding notches of the neck of the container, the deformation of the outer skirt being mainly transmitted to the tamper-proof ring by the tamper-proof bridges.

La bague témoin de première ouverture est reliée à la jupe par des pontets sécables, d'une manière telle que la déformation de la jupe n'entraîne pas une déformation équivalente de la bague.The first opening control ring is connected to the skirt by breakable bridges, so that the deformation of the skirt does not cause an equivalent deformation of the ring.

Les pontets sécables sont préférentiellement au nombre de quatre, répartis en proximité et de part et d'autre de chaque crans du second jeu de crans situés sur la face interne de la bague.The breakable bridges are preferably four in number, distributed in proximity and on either side of each notch of the second set of notches located on the inner face of the ring.

Ainsi, les pontets, pris deux par deux, se situent à proximité et de part et d'autre des crans du second jeu de crans dit d'inviolabilité.Thus, the bridges, taken in pairs, are located near and on either side of the notches of the second set of notches called inviolability.

Cette disposition permet de transmettre la déformation des zones de préhension à la bague témoin de première ouverture, lors de l'ovalisation provoquée de la jupe, et dès lors de mieux bloquer la bague dans sa rotation permettant ainsi la rupture facilitée des pontets.This arrangement makes it possible to transmit the deformation of the gripping zones to the first opening control ring, during the ovalization caused by the skirt, and therefore to better lock the ring in its rotation, thereby facilitating the breakage of the bridges.

Cette disposition est également privilégiée pour des raisons d'équilibrage d'effort de cisaillement lors du premier dévissage du dispositif de fermeture à sécurité enfant, et également pour des raisons de facilité de conception de moule.This provision is also preferred for reasons of balancing shear force during the first unscrewing child-resistant closure device, and also for reasons of ease of mold design.

Dans une conception moins préférentielle, six pontets peuvent également être considérés.In a less preferred design, six jumpers can also be considered.

Les deux crans du second jeu de crans sont répartis à 180° sur la circonférence du col du conteneur et sur la circonférence de la bague témoin de première ouverture, le plan diamétral définissant la face abrupte de ces crans étant perpendiculaire au plan diamétral définissant la face abrupte des deux crans du premier jeu de crans. Cette répartition circonférencielle régulière, permet un équilibrage d'effort lors du dévissage du dispositif de fermeture à sécurité enfant. Une telle répartition régulière l'est également pour des raisons de facilité de conception de moule.The two notches of the second set of notches are distributed at 180 ° on the circumference of the neck of the container and on the circumference of the control ring of first opening, the diametral plane defining the abrupt face of these notches being perpendicular to the diametral plane defining the face steep two notches of the first set of notches. This regular circumferential distribution allows a balancing of effort during the unscrewing of the child-resistant closure device. Such a regular distribution is also so for reasons of ease of mold design.

Le profil des crans du second jeu de crans présents sur la partie intérieure de la bague témoin de première ouverture et sur l'extérieur du col du conteneur associé est tel qu'il permet le vissage du bouchon et le positionnement de la bague reliée et ce, grâce à un profil avec rampe douce, entraînant une déformation de la bague d'inviolabilité témoin de première ouverture, mais ne permet pas son dévissage sans rupture des pontets reliant la bague témoin de première ouverture à la partie inférieure de la jupe du bouchon, de par un profil abrupt qui empêche toute rotation de ladite bague lors du dévissage du dispositif de fermeture.The profile of the notches of the second set of notches present on the inner part of the first opening control ring and on the outside of the neck of the associated container is such that it allows the screwing of the plug and the positioning of the connected ring and this , thanks to a profile with a soft ramp, causing deformation of the tamper-proof ring of first opening, but does not allow its unscrewing without breaking of the bridges connecting the control ring of first opening to the lower part of the skirt of the plug, by a steep profile which prevents any rotation of said ring during unscrewing of the closure device.

En finalité et d'une manière plus précise, les profils des crans du premier et second jeu de crans, lorsque observés selon un plan de coupe perpendiculaire à l'axe de rotation, comportent une rampe douce, suivie d'un pente abrupte, les profils des crans avec lesquels ils coopèrent étant disposés de manière antagoniste, de telle manière que, pour deux crans coopérant, les pentes douces glissent l'une sur l'autre lors de la fermeture et les pentes abruptes se bloquent à l'ouverture.In finality and more precisely, the profiles of the notches of the first and second set of notches, when observed according to a sectional plane perpendicular to the axis of rotation, comprise a gentle ramp, followed by a steep slope, the profiles of notches with which they cooperate being arranged in an antagonistic manner, so that, for two cooperating notches, the soft slopes slide on one another during the closing and the steep slopes block at the opening.

Les crans du second jeu de crans disposés sur le col du conteneur sont situés en dessous des crans du premier jeu de crans assurant la fonction de sécurité enfant. Ils sont d'une hauteur inférieure à celle des crans du premier jeu de crans et correspondent sensiblement à la hauteur de la bague témoin de première ouverture.The notches of the second set of notches arranged on the neck of the container are located below the notches of the first set of notches ensuring the child safety function. They are of a height less than that of the notches of the first set of notches and correspond substantially to the height of the control ring of first opening.

Toute tentative de rotation de la bague témoin de première ouverture solidaire du bouchon, lors du dévissage du bouchon engendre la rupture des pontets sécables reliant la périphérie supérieure de la bague à la périphérie inférieure dé la jupe du bouchon, dans la mesure où cette bague est bloquée en rotation par les crans disposés sur le col du conteneur, alors que le bouchon peut, lui, effectuer cette rotation.Any attempt to rotate the control ring of the first opening secured to the plug, during the unscrewing of the plug, causes the rupture of the breakable bridges connecting the upper periphery of the ring to the lower periphery of the skirt of the plug, insofar as this ring is locked in rotation by the notches arranged on the neck of the container, while the cap can perform this rotation.

Lors du dévissage, à la première ouverture, les deux crans du second jeu de crans bloquent la rotation de la bague d'inviolabilité, témoin de première ouverture, provoquant la casse des pontets sécables. Cette fonction de témoignage de première ouverture est ainsi activée.When unscrewing, at the first opening, the two notches of the second set of notches block the rotation of the tamper-proof ring, first opening indicator, causing breakage of the breakable bridges. This function of testimony of first opening is thus activated.

La poursuite du dévissage ne peut être effective que par une pression sur les deux surfaces de préhension diamétralement opposées positionnées dans la partie inférieure de la jupe périphérique du bouchon. Cette pression provoque une ovalisation de la partie cylindrique de la jupe et libère les deux crans d'anti-rotation : la fonction de sécurité enfant est alors désactivée.Continuation of unscrewing can only be effective by pressure on the two diametrically opposed gripping surfaces positioned in the lower part of the peripheral skirt of the plug. This pressure causes ovalization of the cylindrical part of the skirt and releases the two anti-rotation notches: the child safety function is then deactivated.

Ainsi, les surfaces de préhension sont définies sur la partie souple de la jupe du bouchon pour matérialiser les points d'application des efforts. La bague témoin de première ouverture est reliée à la jupe extérieure du bouchon par deux jeux de deux pontets sécables, chaque pontet sécable étant situé de part et d'autre des deux surfaces de préhension. Ainsi, la déformation appliquée sur les surfaces de préhension est en majeure partie transmise à la bague d'inviolabilité garantissant le contact entre les crans du second jeux de crans dit d'inviolabilité et les crans correspondants positionnés sur le col du conteneur. La sécurité de fonctionnement de l'inviolabilité s'en trouve renforcée.Thus, the gripping surfaces are defined on the flexible portion of the skirt of the plug to materialize the points of application of the forces. The first opening control ring is connected to the outer skirt of the cap by two sets of two breakable bridges, each breakable bridge being located on either side of the two gripping surfaces. Thus, the deformation applied to the gripping surfaces is mainly transmitted to the tamper-proof ring ensuring contact between the notches of the second set of notches said inviolability and the corresponding notches positioned on the neck of the container. The security of operation of the inviolability is strengthened.

Il apparaît également que la bague témoin de première ouverture reliée à la jupe par les deux jeux de pontets sécables, disposés de part et d'autre des deux surfaces de préhension, se déforme de la même manière que la jupe dans les surfaces de préhension mais ne subit pas une déformation équivalente à celle de la jupe dans le plan perpendiculaire, parce que non reliée dans ces zones à la jupe par des pontets.It also appears that the first opening control ring connected to the skirt by the two sets of breakable bridges, arranged on either side of the two gripping surfaces, deforms in the same manner as the skirt in the gripping surfaces but does not undergo a deformation equivalent to that of the skirt in the perpendicular plane, because not connected in these areas to the skirt by bridges.

Selon l'invention, l'étanchéité entre la partie interne du col du conteneur et le bouchon à vis est assurée au moyen d'un élément cylindrique, coaxial et concentrique au bouchon, positionné à l'intérieur du bouchon en prenant appui sur le fond dudit bouchon. Cet élément cylindrique s'ajuste, par l'intermédiaire d'un chanfrein terminal, dans le col du conteneur de par le fait que son diamètre externe est ajusté au diamètre interne du col du conteneur et qu'il est d'une certaine hauteur.According to the invention, the seal between the inner part of the neck of the container and the screw cap is ensured by means of a cylindrical element, coaxial and concentric with the stopper, positioned inside the stopper, resting on the bottom said plug. This cylindrical element adjusts, via a terminal chamfer, in the neck of the container in that its diameter external is adjusted to the inner diameter of the neck of the container and that it is of a certain height.

Le bouchon du dispositif de fermeture à sécurité enfant, selon l'invention, comporte en outre un moyen déshydratant de type rapporté, l'agent déshydratant étant placé dans un logement approprié, situé sur le fond du bouchon interne, ledit logement étant clos par un moyen de fermeture non étanche à l'humidité ambiante, par exemple, une membrane en carton poreux, pour assurer la dessiccation rapide des produits sensibles à l'humidité et conditionnés dans le conteneur.The closure of the child-resistant closure device, according to the invention, further comprises a desiccant means of attached type, the desiccant being placed in a suitable housing, located on the bottom of the inner cap, said housing being closed by a closure means not sealed to ambient humidity, for example, a porous cardboard membrane, to ensure rapid drying of moisture sensitive products and packaged in the container.

Le logement est ainsi coaxial et concentrique au bouchon, et vient s'insérer librement dans le col du conteneur.The housing is thus coaxial and concentric with the cap, and is inserted freely into the neck of the container.

L'agent déshydratant mis en oeuvre dans le conteneur est choisi dans le groupe constitué par les gels de silice, les tamis moléculaires, les diatomées ou autres produits déshydratants, se présentant sous une forme pulvérulente ou déposés sur un support pulvérulent. Ils peuvent également se présenter sous la forme de mélangesThe dehydrating agent used in the container is selected from the group consisting of silica gels, molecular sieves, diatoms or other desiccants, in powder form or deposited on a powdery support. They can also be in the form of mixtures

L'agent déshydratant peut également être une capsule contenue dans ledit logement et réalisée en un matériau polymère déshydratant contenant ou non des charges déshydratantes ou d'une manière plus générale en tout matériau contenant un agent déshydratant.The desiccant may also be a capsule contained in said housing and made of a desiccant polymer material containing or not desiccant fillers or more generally of any material containing a desiccant.

Comme les dispositifs de fermeture de sécurité appartenant à l'état de la technique, le bouchon du dispositif selon l'invention est réalisé par moulage par injection à partir de polymères thermoplastiques, choisis préférentiellement dans le groupe constitué par les polyéthylènes, les polypropylènes, les copolymères d'éthylène/propylène mis en oeuvre seuls ou en mélange, formulés ou non.As the safety closing devices belonging to the state of the art, the plug of the device according to the invention is produced by injection molding from thermoplastic polymers, preferably chosen from the group consisting of polyethylenes, polypropylenes, copolymers of ethylene / propylene used alone or in mixture, formulated or not.

D'autres polymères thermoplastiques peuvent également être utilisés tels que les polyamides (PA), les polystyrènes (PS), les copolymères d'acrylonitrile-butadiène-styrène (ABS), les copolymères de styrène-acrylonitrile (SAN), les polyméthacrylates de méthyl (PMMA), les polyéthylènetéréphtalates (PET), les polybutylènetéréphtalates (PBT), les polyacétals (POM), les polychlorures de vinyle (PVC), les polycarbonates (PC). Des élastomères semi-rigides peuvent aussi être envisagés.Other thermoplastic polymers may also be used such as polyamides (PA), polystyrenes (PS), acrylonitrile-butadiene-styrene copolymers (ABS), styrene-acrylonitrile copolymers (SAN), polymethyl methacrylates (PMMA), polyethylene terephthalates (PET), polybutyleneterephthalates (PBT), polyacetals (POM), polyvinylchlorides (PVC), polycarbonates (PC). Semi-rigid elastomers can also be envisaged.

Des élastomères thermoplastiques peuvent être ajoutés à de telles compositions formulées à partir des polymères thermoplastiques précités.Thermoplastic elastomers may be added to such compositions formulated from the aforementioned thermoplastic polymers.

L'invention sera mieux comprise grâce à la description chiffrée des figures ci-après évoquées, ces figures n'ayant qu'un caractère illustratif non limitatif.

  • La figure 1 est une vue en perspective de dessus du conteneur sur lequel vient se visser le dispositif de fermeture à sécurité enfant et à bague témoin de première ouverture.
  • La figure 2 est une vue en perspective de dessous du dispositif de fermeture plus spécifiquement du bouchon, mettant en particulier en évidence un cran du premier jeu de crans positionné à l'intérieur de la jupe du bouchon et un cran positionné à 90° du cran précédent, et appartenant au second jeu de cran positionné à l'intérieur de la bague témoin de première ouverture.
  • La figure 3 une coupe transversale du dispositif de fermeture déshydratant, à sécurité enfant et à bague témoin de première ouverture, monté par vissage sur le conteneur correspondant selon l'invention.
The invention will be better understood thanks to the numerical description of the figures mentioned below, these figures having only a non-limiting illustrative character.
  • The figure 1 is a perspective view from above of the container on which is screwed the child-resistant closing device and control ring of first opening.
  • The figure 2 is a bottom perspective view of the closing device more specifically of the plug, highlighting in particular a notch of the first set of notches positioned inside the skirt of the plug and a notch positioned at 90 ° of the previous notch, and belonging to the second set of notches positioned inside the first opening control ring.
  • The figure 3 a cross-section of the desiccant closing device, child safety and first-opening control ring, mounted by screwing on the corresponding container according to the invention.

La figure 1 est une vue en perspective de dessus du conteneur (1) sur lequel vient se visser le dispositif de fermeture à sécurité enfant et à bague témoin de première ouverture (16).The figure 1 is a perspective view from above of the container (1) on which is screwed the child-resistant closure device and first-opening control ring (16).

Le conteneur comporte un col (2) équipé d'un pas de vis à filet (3) et un premier jeu de deux crans (4) assurant la fonction de sécurité enfant, lorsque coopérant avec les crans correspondant situés sur l'intérieur de la jupe (11) du bouchon du dispositif de fermeture, dont un seul est visible sur la figure 1 et un second jeu de deux crans (7) assurant la fonction de blocage de la bague témoin de première ouverture, lorsque coopérant avec les crans correspondant situés sur l'intérieur de ladite bague, dont un seul est également visible sur la figure 1.The container comprises a neck (2) equipped with a screw thread (3) and a first set of two notches (4) ensuring the child safety function, when cooperating with the corresponding notches located on the inside of the skirt (11) of the cap of the closure device, only one of which is visible on the figure 1 and a second set of two notches (7) providing the locking function of the first opening control ring, when cooperating with the corresponding notches located on the inside of said ring, only one of which is also visible on the figure 1 .

Le cran (4) du premier jeu de crans comporte un profil avec rampe douce, matérialisé par la face (5) complété par un profil abrupt matérialisé par la face (6).The notch (4) of the first set of notches has a profile with a soft ramp, materialized by the face (5) completed by an abrupt profile materialized by the face (6).

Le cran (7) du second jeu de crans comporte un profil avec rampe douce, matérialisé par la face (8) complété par un profil abrupt matérialisé par la face (9).The notch (7) of the second set of notches comprises a profile with a soft ramp, materialized by the face (8) completed by an abrupt profile materialized by the face (9).

La figure 2 est une vue en perspective de dessous du dispositif de fermeture plus spécifiquement du bouchon.The figure 2 is a bottom perspective view of the closing device more specifically the plug.

Le bouchon se compose d'une paroi latérale cylindrique formée de deux zones, une première zone haute (10) rigide et non déformable, de diamètre d1, formant corps du bouchon, comportant le pas de vis, une seconde zone basse de diamètre d2, formant jupe (11) souple et déformable, sous une double pression symétrique latérale centripète, les zones haute et basse étant reliées entre elles par un épaulement rigide (24). La jupe (11), est équipée de deux surfaces de préhension (12) constituées par un méplat dont une seule est visible. Le bouchon comporte également un logement (20) permettant d'insérer une matière déshydratante occultée par une membrane poreuse (21).The plug consists of a cylindrical side wall formed of two zones, a first high zone (10) rigid and non-deformable, of diameter d1, forming the body of the plug, comprising the thread, a second low zone of diameter d2, forming a flexible and deformable skirt (11), under a double centripetal lateral symmetrical pressure, the high and low zones being interconnected by a rigid shoulder (24). The skirt (11) is equipped with two gripping surfaces (12) consisting of a flat part of which only one is visible. The cap also comprises a housing (20) for inserting a desiccant material concealed by a porous membrane (21).

Le bouchon comporte également une bague témoin de première ouverture (16) mettant en particulier en évidence un cran (13) du premier jeu de crans positionné à l'intérieur de la jupe (11) du bouchon et un cran (17) positionné à 90° du cran précédent, et appartenant au second jeu de cran positionné à l'intérieur de la bague témoin de première ouverture (16).The stopper also comprises a first-opening indicator ring (16) highlighting in particular a notch (13) of the first set of detents positioned inside the skirt (11) of the stopper and a notch (17) positioned at 90.degree. ° of the previous notch, and belonging to the second set of notches positioned inside the first opening control ring (16).

Le cran (13) du premier jeu de crans situé sur l'intérieur de la face interne de la jupe (11) du bouchon comporte un profil avec rampe douce, matérialisé par la face (14) complété par un profil abrupt matérialisé par la face (15).The notch (13) of the first set of notches located on the inside of the inner face of the skirt (11) of the plug has a profile with a soft ramp, materialized by the face (14) completed by an abrupt profile materialized by the face (15).

Le cran (17) du second jeux de crans situé sur l'intérieur de la face interne de la bague témoin de première ouverture (16) comporte un profil avec rampe douce, matérialisée par la face (18) complété par un profil abrupt matérialisée par la face (19).The notch (17) of the second set of notches located on the inside of the internal face of the first opening control ring (16) has a profile with a soft ramp, materialized by the face (18) completed by an abrupt profile materialized by the face (19).

Les pontets sécables (22) relient la bague témoin de première ouverture (16) à la jupe (11) du bouchon.The breakable bridges (22) connect the first opening control ring (16) to the skirt (11) of the plug.

La figure 3 représente une coupe transversale du dispositif de fermeture déshydratant, à sécurité enfant et à bague témoin de première ouverture (16), monté par vissage sur le conteneur (1) correspondant selon l'invention. La bague témoin de première ouverture (16) est encore solidaire par l'intermédiaire des pontets sécables (22) de la jupe (11) du bouchon (10).The figure 3 represents a cross-section of the desiccant closing device, child safety and first-opening control ring (16), mounted by screwing on the corresponding container (1) according to the invention. The first opening control ring (16) is further secured by means of the breakable bridges (22) of the skirt (11) of the plug (10).

Le bouchon comporte également une zone cylindrique d'étanchéité (23) venant s'ajuster dans le col (2) du conteneur (1) équipé de son pas de vis (3).The stopper also comprises a cylindrical sealing zone (23) fitting into the neck (2) of the container (1) equipped with its thread (3).

Le bouchon comporte également, dans son fond, un logement (20) rempli par une matière déshydratante, retenue par l'intermédiaire d'une membrane poreuse (21).The plug also comprises, in its bottom, a housing (20) filled with a desiccant material retained by means of a porous membrane (21).

Claims (18)

  1. Childproof closure device for a screw container (1), comprising:
    (i) a neck (2) of the container (1),
    (ii) a cap which can be screwed onto the neck (2) of container (1) with which it is associated, the said cap comprising an end and a cylindrical side wall bearing a screw and a first set of catches (13) on its inner surface, referred as being childproof, and
    (iii) a ring providing evidence of first opening (16) attached to the cylindrical side wall by small cuttable bridges (22), the said ring (16) being also provided on its inside surface with a second set of catches (17), referred to as tamper-proof catches, the first and second sets of catches acting together with corresponding sets of catches (4, 7) positioned on the base of the neck of container (2),
    characterised in that the cylindrical side wall of the cap is formed of two zones, a first top zone (10), which is rigid and non-deformable, of diameter (d1), forming the body of the cap comprising the screw, and a second bottom zone (11), of diameter (d2), forming a flexible skirt which can be deformed through symmetrical double lateral centripetal pressure applied to the two diametrically opposite gripping surfaces (12), and in that the second zone comprises on its inside surface the said first set of catches (13), referred to as being childproof, and
    in that the height of the two catches (4) positioned on the neck (2) of the container (1) acting together with the two catches of the first set of catches (13) is such that the said catches are positioned downwards below the zone of the screw on the neck (2) of the container (1) and extend down to the lower peripheral zone of the ring (16) providing evidence of first opening when this is in place, all the other catches (7) being of shorter height.
  2. Childproof closure device according to claim 1, characterised in that the top zone (10) and bottom zone (11) of the cylindrical side wall are connected together through a rigid shoulder (24).
  3. Childproof closure device according to either of claims 1 and 2, characterised in that the deformation applied to the gripping surfaces (12) is transmitted to the tamper-proof ring (16) in such a way that the catches of the second set of catches (17) act intimately together with the corresponding catches (4, 7) located on the neck (2) of the container (1).
  4. Childproof closure device according to at least one of claims 1 to 3, characterised in that the ring (16) providing evidence of first opening is attached to the skirt (11) in such a way that deformation of the skirt (11) does not bring about equivalent deformation of the ring (16).
  5. Childproof closure device according to at least one of claims 1 to 4, characterised in that the diameter d1 of the top zone (10) is less than the diameter d2 of the bottom zone (11).
  6. Childproof closure device according to at least one of claims 1 to 5, characterised in that the catches in the first set of catches (13) are two in number and are located on the inner surface of the skirt (11) of the cap, diametrically opposite to each other, on a diameter which is itself parallel to the plane of orientation of the two gripping surfaces (12) and act together with the two corresponding catches (4, 7) located on the neck (2) of the associated container (1).
  7. Childproof closure device according to at least one of claims 1 to 6, characterised in that the ring (16) providing evidence of first opening has a second set of two catches (17), referred to as tamper-proof catches, on its inner surface located opposite the two gripping surfaces (12) which act together with the two corresponding catches (4, 7) located on the neck (2) of the associated container (1).
  8. Childproof closure device according to at least one of claims 1 to 7, characterised in that the profiles of the catches in the first and second set of catches comprise when observed in a section plane perpendicular to the axis of rotation a gentle ramp (5, 8, 14) followed by a steep gradient (6, 9, 15), the profiles of the catches with which they act together being arranged in an opposing manner in such a way that for the two catches which act together the gentle slopes slide over each other during closure and the steep slopes lock on opening.
  9. Childproof closure device according to at least one of claims 1 to 8, characterised in that the two sets of catches are located in perpendicular planes which bound the surface of the steep surfaces and ensure quality locking of the catches in the cap with the corresponding catches in the neck of the container.
  10. Childproof closure device according to at least one of claims 1 to 9, characterised in that the ring (16) providing evidence of first opening is attached to the skirt (11) through four small bridges (22).
  11. Childproof closure device according to claim 10, characterised in that the small bridges (22) taken in pairs are located close to and away from the catches in the second set of catches (17) referred to as tamper-proof catches.
  12. Childproof closure device according to at least one of claims 1 to 11, characterised in that the said cap comprises dehydrating means (20, 21).
  13. Childproof closure device according to claim 12, characterised in that the dehydrating means (20, 21) is of the applied type, this means comprising an appropriate housing (20) located on the end of the inner cap in which a dehydrating agent is placed, the said housing being closed off by closure means which are not impervious to ambient moisture.
  14. Childproof closure device according to claim 13, characterised in that the dehydrating agent is selected from the group comprising silica gels, molecular sieves, diatomaceous earths in the form of a powder or a deposit on a powder substrate or in the form of a capsule made of polymer material which may or may not contain dehydrating fills.
  15. Childproof closure device according to at least one of claims 1 to 14, characterised in that in order to establish a seal between the inner part of the neck of the container and the cap having an internal screw, the inner cap is fitted with a coaxial cylindrical component (23) positioned within the said cap and fitting the neck (2) of the container (1) through a terminal bevel.
  16. Childproof closure device according to at least one of claims 1 to 15, characterised in that it is constructed from compositions formulated from thermoplastic polymers selected from the group comprising polyethylenes, polypropylenes, ethylene/ propylene copolymers used alone or as mixtures, whether formulated or not, polyamides (PA), polystyrenes (PS), acrylonitrile-butadiene-styrene copolymers (ABS), styrene-acrylonitrile copolymers (SAN) polymethyl methacrylates (PMMA), polyethylene terephthalates (PET), polybutylene terephthalates (PBT), polyacetals (POM), polyvinyl chlorides (PVC) and polycarbonates (PC).
  17. Childproof closure device according to claim 16, characterised in that the compositions formulated from thermoplastic polymers contain thermoplastic elastomers.
  18. Use of a childproof closure device according to claims 1 to 17 for the closure of containers intended for the storage of products which are sensitive to moisture such as pharmaceutical or other products which have to be consumed progressively and providing security with regard to both the physical integrity of the packaging prior to first opening and the child risk.
EP08760476A 2007-06-28 2008-06-04 Child-safe closure device with screw and collar for revealing first opening Active EP2170719B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0704668A FR2918041B1 (en) 2007-06-28 2007-06-28 CHILD SAFETY CLOSURE DEVICE WITH A SCREW AND A FIRST-OPEN WINDOW RING
PCT/EP2008/056894 WO2009000616A1 (en) 2007-06-28 2008-06-04 Child-safe closure device with screw and collar for revealing first opening

Publications (2)

Publication Number Publication Date
EP2170719A1 EP2170719A1 (en) 2010-04-07
EP2170719B1 true EP2170719B1 (en) 2011-08-17

Family

ID=38896692

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08760476A Active EP2170719B1 (en) 2007-06-28 2008-06-04 Child-safe closure device with screw and collar for revealing first opening

Country Status (5)

Country Link
US (1) US8302792B2 (en)
EP (1) EP2170719B1 (en)
AT (1) ATE520602T1 (en)
FR (1) FR2918041B1 (en)
WO (1) WO2009000616A1 (en)

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JP2022513940A (en) * 2018-12-17 2022-02-09 グラクソスミスクライン・コンシューマー・ヘルスケア・ホールディングス・ユーエス・リミテッド・ライアビリティ・カンパニー Child register container
US11401085B2 (en) 2019-04-23 2022-08-02 Berry Global, Inc. Selectively openable closure for a container
US11518579B2 (en) * 2019-07-30 2022-12-06 The Clorox Company Dispensing closure with plug sealing and locking lug
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Also Published As

Publication number Publication date
US20100206877A1 (en) 2010-08-19
EP2170719A1 (en) 2010-04-07
FR2918041B1 (en) 2009-09-25
ATE520602T1 (en) 2011-09-15
WO2009000616A1 (en) 2008-12-31
FR2918041A1 (en) 2009-01-02
US8302792B2 (en) 2012-11-06

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