WO2008087290A1

WO2008087290A1 - Dehydrating and reclosable hinged plug-lid with tamper indicator and compensation device

Info

Publication number: WO2008087290A1
Application number: PCT/FR2007/002059
Authority: WO
Inventors: Benoît Portier; Bruno Guillon
Original assignee: Airsec S.A.S
Priority date: 2006-12-13
Filing date: 2007-12-13
Publication date: 2008-07-24
Also published as: US20100044252A1; EP2125553B1; FR2909977A1; EP2125553A1; FR2909977B1

Abstract

The invention relates to a dehydrating and reclosable hinged plug-lid that comprises a dehydrating means, a fixation means provided between the occlusion means and the open end of the tubular container, a tamper indicator, a compensation means for preserving the conditioned products provided inside the occlusion means and secured to said occlusion means, wherein said compensation means consists of a hollow device having an essentially conical, frusto-conical, polyhedral, frusto-polyhedral apparent shape with a large annular base and a small annular base parallel to the large base, the small base in contact with the conditioned products being coaxial and connected to the large base by at least one linking means that can be deformed under the action of a mechanical pressure and that can recover its initial shape when said pressure is no longer applied.

Description

DEHYDRATING, REFERMABLE, HINGED LID, DEFLOWING LID, AND COMPENSATING DEVICE

Field of the invention

The invention relates to a reclosable desiccant lid, hinge, tamper-evident and special compensation device, adapted to fit on a tubular container for packaging, in a controlled atmosphere, moisture-sensitive products.

Such products to be conditioned, sensitive to moisture, are generally products such as, for example, products of the pharmaceutical, cosmetic, food, veterinary, diagnostic and other types.

More specifically, the invention relates to a closable desiccant lid hinge, tamper-evident and compensation device, constituting the resealable closing means of the open end of the container, said cap-lid being connected to the body the container by a hinge type connection associated with a ring secured to said container and having a tamper evident placed between the cap-lid and said ring forcefully inserted on the container during its final closure after filling.

This break-in indicator makes it possible, when the user first opens the container, to note that it has not been opened after it has been filled by the pharmaceutical laboratory, thus ensuring the physical integrity of the container. protective packaging guaranteeing the authenticity, qualitative and quantitative, of the product contained.

More specifically, the invention relates to a reclosable desiccant lid hinge, tamper and compensation device, said compensation device for exerting mechanical pressure, spring effect on the stored products, especially pharmaceutical, in the form of, more specifically, lozenges, tablets, tablets.

State of the art

Numerous desiccant stoppers with compensation device and burglar-proof have been made and are fully described in the patent literature. They are of the plug type, coming to fit forcefully in the open end of a generally cylindrical container, thus offering the functions of dehydration and holding in position the upper tablets positioned in the container, solid or substantially full, thanks to a compensation device in the form of a spring or a twist. Thus said tablets can not move inadvertently inside the container during transport. The risk of mechanical deterioration of said tablets is thus avoided. However, such physical maintenance can be implemented only on a substantially full container. In order for the spring effect of the compensation swirler to be exerted, it is important for the spacing zone between the upper surface of the tablet and the lower surface of the said compensation swirler in contact with the upper surface of the tablet to be held in position, is of height less than the height of said compensation swirler.

Thus for example the document DE9203763 (GAPLAST) describes an absorbent plug being inserted into the open end of a cylindrical container, in order to seal it tightly. Such a cap comprises a ring which is fixed permanently and forcefully on the upper outer end of the container, once the latter filled. This ring acts as a tamper evidence by the presence of breakable bridges between the upper portion of said ring and the adjacent lower portion of said plug. These breakable bridges are broken during the first opening of the container.

The desiccant plug also includes a chamber containing the desiccant material. The desiccant plug also comprises a cylindrical spiral-type compensating spring element of monolithic design, that is to say, injected at the same time as the desiccant plug.

Another document, DE8337183U (SANNER GMBH) also describes an absorbent plug that fits into the open end of a cylindrical container. Such an absorbent plug comprises a tamper indicator constituted by a flange equipped with a double set of breakable bridges, positioned between the lower ring and the plug. When the plug is first opened, the intermediate flange is detached from the assembly by means of the rupture of the upper bridges. attaching to the cap and breaking the lower jumpers attaching it to the ring fixed on the upper end of the container body. Such a plug further comprises a compensation spring element, also of monolithic design.

These plugs available in the state of the art are, however, not hinged attaching them to the container and can, therefore, be easily misplaced by the user.

This is why another design is needed to provide this additional hinged cap-lid function. In particular, the document EP1352844 (CSP) describes a packaging that can be closed, protecting the moisture thus conditioned products, comprising a container and a cap-lid, connected by an integral hinge and equipped with an element spring, attached to the inner part of the lid cap and a desiccant material retained by the spring element.

This spring element, manufactured separately from the container and the lid-cap, is assembled on the bottom of said lid-cap and contains a desiccant bag.

The cap-lid described in this document has a hinge which is not secured to a ring fixed on the container but is directly secured to the container, the cap-lid, the hinge and the container being molded in a single operation. Such a hinge is said integral hinge. Such a container design and cap-lid with integral hinge is more difficult to manufacture at high speeds of the packaging industry, contrario a manufacture operating in two perfectly cylindrical parts, tubular container of a on the other hand, it is easier to use on multi-cavity molds.

In addition, this compensating spring element can not be of high height because said element then interferes with the edge of the container, by its cylindrical shape, during the closure of the container by rotation of the cap-lid around the axis of its hinge.

Thus the state of the art shows that containers closed by a cap without hinge can be provided simultaneously with a supply of desiccant positioned in the cap, a burglary and a cylindrical compensation spring of adequate size .

But the state of the art also reveals that it is virtually impossible to equip this type of container comprising the aforementioned means, namely a desiccant, a burglar and a cylindrical compensation element, when one attempts to replace a plug-type plug with a hinged lid-cap when it has a desiccant storage chamber. Indeed, the cylindrical or frustoconical compensation element of the hinged cap-lid, when said lid-cap is provided, impinges on the edge of the container, because of its height. minimum required for its mechanical compensation action.

Summary of the invention

There is therefore a technical problem that has not been solved, which is that of not being able to produce a container equipped with a hinged lid-cap, provided with a desiccant reserve chamber, a burglar-proof indicator and comprising also a compensation device of sufficient minimum height to its mechanical compensation action, this device having the ability to deform under pressure and to recover its shape upon release.

Another problem posed to the designer is still to solve all or part of the aforementioned drawbacks and thus constitute a significant improvement over the state of the art.

Therefore, the invention relates to a hinged resealable desiccant lid-cap, closing a container for the packaging of moisture-sensitive products, also having a burglar-proof indicator and comprising a geometry compensation means included in FIG. a fictitious volume and therefore of apparent shape such that it can allow the passage of said compensation means in the open space of the container during the rotation of the cap-lid, around the axis constituted by the hinge connecting the plug- lid to the tubular container while the cap-lid is equipped with its compensator and its housing containing the desiccant; it is sufficiently effective in terms of spring effect, that is to say that said compensation means come, by its mechanical action, rely on the packaged products to block the vertical movement.

The cap-lid, according to the invention, provides a solution to a technical problem that has been posed and not solved in the state of the art, which is that of being able to equip a container with a hinged lid-cap having both a means of compensation and a desiccant element in the body of the cap-lid.

Accordingly, the invention relates to a hinged resealable desiccant lid-cap, constituting the means for sealing the open end of a tubular container for the packaging of moisture-sensitive products, further comprising desiccant means , a fastening means placed between the closure means and the open end of the tubular container, a burglary witness, a compensation means for holding the packaged products, positioned inside the closure means and returned integral with said closure means, characterized in that said compensating means is a substantially conical, frustoconical, polyhedral, truncated polyhedral shaped hollow device composed of a large annular base and a small base parallel to the large base, this small base in contact with the packaged products, being coaxial and connected to the large base by at least one deformable connection means under the effect of a mechanical pressure and having capacity to recover its initial shape when said pressure is removed.

Detailed description of the invention

Thus, according to the invention, the reclosable, hinged, burglar-proof, and compensating desiccant lid-stopper constitutes the sealing means for sealing the open end of the tubular container in which the products are conditioned. protect and comprises a desiccant means, a fixing means placed between the closure means and the open end of the container so as to secure 1 / together cap-lid and container, a hinge for connecting the closure means by means of fixing and opening and closing this container, a tamper evident having the ability to visually testify the first opening of said container and a compensation means for maintaining the packaged products under mechanical pressure.

This closable, hinged, burglar-proof, compensating desiccant lid-cap for the packaging of moisture-sensitive products:

is the sealing means for sealing the open end of a tubular container, forming the zone of packaging products, closed at one of its ends by a bottom and open to the other, - and further comprises: a desiccant means placed on the part of the container internal sealing means,

a fixing means placed between the closure means and the open end of the tubular container, mechanically interlocking, irreversibly on said container, during its final closure after filling,

a hinge for connecting the closure means to the fastening means,

a burglary witness having the ability to visually testify to the first opening of said container equipped with its lid stopper,

a compensation means making it possible to keep the packaged products under mechanical pressure in order to avoid the risk of said products before use being moved unintentionally inside the container during transport, this compensation means having a specific shape , being positioned inside the closure means and secured to said sealing means.

The sealing means:

The container is closed with the closure means which is the cap-type cap according to the invention, connected to the container body by means of a hinge itself integral with the container body by means of a fixing means, for example of the type of fixing ring.

This closure means of the open end of the container is a lid-cap coaxial to the container consisting of an upper end wall constituting said cap-lid and two peripheral walls coaxial with the axis of the cap-lid forming between them a deep peripheral groove whose walls are spaced apart from each other to cover, when said closure means is closed, the peripheral wall of the open end of the container for establishing a tight and intimate contact between: the bottom of the groove and the peripheral rim of the open end of the container, the inner surface of the inner wall of said groove and the inner surface of the open end of the container, the inner surface of the outer coaxial wall of the groove and the outer surface of the open end of the container.

An outer peripheral stop of the flange type can be created near the open end of the container on which can come to rest the shutter means in the closed position.

Any means allowing the creation of a sufficient, or even reinforced, seal between the body of the container and the cap-lid is possible within the scope of the invention. So, for example, an architecture of cap-lid with a deep peripheral groove allowing a leaktight covering by means of three peripheral contact zones surface-to-surface of the open end of the envelope, provides a desired seal by close contact surface-to-surface, when closing the plug-lid.

To maintain the cap-lid in closed position, the inner face of the outer wall of the groove and the outer face of the outer wall of the casing may be provided with a latching means, requiring mechanical effort as well for complete the closure of the lid-lid only to ensure its opening.

To facilitate the opening and closing operation of the cover cap, the lower plane edge of the outer wall of the groove can be extended by a gripping visor or have a tab recessed.

This visor-like protrusion or tab-like removal makes it easier to open the lid cap more generally, with one hand, and to rotate it around the axis of the hinge. They also make it possible to exert sufficient lifting force to break the breakable bridges of the burglar alarm.

The desiccant means:

The desiccant lid-cap according to the invention comprises a type of moisture absorption means reported. The desiccant is placed in a suitable housing, located on the bottom of the cap-lid, said housing being closed by a sealing means not sealed to ambient humidity, for example, a porous cardboard membrane to ensure rapid desiccation moisture sensitive products packaged in the desiccant container. The dehydrating agent used in the housing is selected from the group consisting of silica gels, molecular sieves or other desiccants, in powder form or deposited on a powdery support.

The dehydrating agent may also be a capsule, contained in said housing and made of a desiccant polymer material containing or not desiccant fillers.

Fixing means:

Fastening means is placed between the closure means and the open end of the container so as to secure the cap-lid and container assembly.

This fixing means may be of the ring, collar, fixing ring or any mechanical system fixing said cap-lid to the tubular container.

The fastening means is secured to the container by press fitting, clipping, gluing, welding. In a preferred configuration, this fastening means is secured to the container by clipping, that is to say force fitting into an appropriate groove during the final closure of the container after filling. The geometry of the groove is such that this fixing ring can not be disassembled from the container once it is put in place by pressure during the final closure of the container after filling. The geometry is that of a form with an undercut, playing on the relative possibility of deformation of the ring, equipped for its fitting by force of a circular chamfer.

The hinge :

The physical connection between the container, via the fixing means that is the fixing ring and the closure means which is a cap-lid, is preferably an integral hinge that is to say molded at the same time. time and in the same material as the cap-lid and the fixing ring to be secured with the container body. This integral hinge can be film type or ribbon type.

A removable mechanical hinge, ensuring the accuracy of the closure, can also be considered but has the disadvantage of constituting an additional piece, while this assembly cap-lid, hinge, fastening ring and burglary indicator is monobloc and therefore manufactured in a single operation and in the same material.

Indeed, in the case of a rigid mechanical hinge dismountable type, it is formed of two parts, one integrated with the fixing ring coming to slip on the container, the other integrated by means of shutter. The burglary witness:

According to the invention, the cap-lid, secured to the packaging container, once the fixing ring is force-fitted is actually equipped with a tamper-evident indicator, also called first-opening indicator, positioned between said integral ring of the container and said cap-lid. This burglar or tamper evident indicator is formed by micro-links connecting all or part of the lower peripheral surface of the cap-cover to all or part of the upper peripheral surface of the ring or fixing collar or any fastening system such as ring fixing the lid on the container body or made integral with the container body.

These micro-links or breakable bridges are micro-points of connection, independent of each other but forming a periphery or a simple toothed zone of connection between the lid-lid mobile around. of its hinge, reclosable, once these links broken and the ring or the collar or the system fixing said cap-lid to the body of the container.

These micro-points are broken during the first opening by the application of a breaking force exerted on the cap-cover in the vertical direction, from the bottom to the top if it is a simple connection by micro -points between the ring or fastening collar secured to the container and the cap-lid or in the horizontal direction by circular pulling movement if it is a double row of break points of a intermediate flange between the fastening means and the cap-lid.

The first user does this and knows that he is the first user. It can easily see whether said micro-point link is still present and integrated or not.

The compensation means:

According to the invention, the cap-cover comprises a compensation means consisting of a substantially conical, frustoconical, polyhedral, truncated polyhedral hollow-shaped compensation device consisting of a large annular base and a small base parallel to the a large base, which is coaxial and which is connected to it by at least one deformable connecting means, having the ability to recover its initial shape, the small base being in contact with the packaged products. This compensation device positioned inside the closure means is secured to said sealing means and is of sufficient height that its mechanical compensation action can actually be exercised.

This compensation device is of apparent shape such that its end in contact with the packaged products is of dimension substantially smaller than that of its end connected to the lower part of the cap-lid, thus allowing it not to interfere with the upper zone. opening of the tubular container during the opening and closing of the lid-lid, once it is permanently fixed on the container after filling.

More specifically, the ratio of the diameters of the part of the compensation device in contact with the packaged product, on which this mechanical compensation is exerted, that is to say the small base and the end of the device connected to the lower part of the lid-cap, that is to say its large base, varies between 0.05 and 0.9 and preferably between 0.1 and 0.6.

More precisely, the angle at. The top of the compensation device is within the range of 30 ° to 120 °.

In the context of the aforementioned report: when the apparent forms are conical or frustoconical, the base and the base are circular and their diameters are real. - When the apparent forms are polyhedral or polyhedral truncated, the small base can be polygonal and leads to the measurement of an apparent diameter or circular diameter real, the large base is always circular with a real diameter.

The apparent shape of the compensation device, that is to say the imaginary volume in which said device is contained, that is to say its steric hindrance, can be conical, frustoconical, polyhedral or truncated polyhedral.

When the fictitious volume is conical or frustoconical, the at least one deformable connecting means connecting the large Base at the small base is a fictional generator. The compensation device, when contained in a conical or frustoconical fictitious volume, may comprise a plurality of deformable connection means of the number of 2, 3, 4 or more and arranged around the axis preferably symmetrically.

When the fictitious volume is truncated polyhedral or polyhedral, one of the edges is constituted by the at least one real deformable connection means, connecting the large base to the small base, the other edges being fictitious. In particular, the truncated polyhedral or polyhedral fictitious volume which comprises at least three lateral surfaces therefore comprises three real edges formed by three deformable connecting means. It is the same for 4 faces, 5 faces, 6 faces.

Such a fictitious volume thus allows the compensation device not to interfere, by this end of restricted size that is its small base, with the upper zone of opening. tubular container, when opening and closing the cap-lid, once it fixed permanently on the container after filling.

This solution, which consists of modifying the apparent shape of the compensation device in order to prevent the device interfering with the upper edge of the tubular container during the opening and closing of the cap-lid, is particularly advantageous.

The deformable connecting means of the large base to the small base can be at least one deformable helix winding on a fictitious cone and coaxial with the axis of the device, and appearing as a frustoconical or conical spring or at least one deformable tongue appearing as one of the edges of the faces of the fictional polyhedron in which fits the device or belonging to the dummy surface of a cone or truncated cone.

When the compensation device is of conical or frustoconical apparent shape, the at least one deformable connecting means is formed by at least one helix and preferably two propellers in opposite directions or not, regularly distributed in space. This at least one helix is connected, by its lower end, to the large base, preferably circular, made integral with the lower part of the cap-lid. This at least one helix is also connected, by its upper end, to the small, preferably circular base of very small dimension in physical contact with the packaged product.

The section of this at least one helix may be circular or polygonal.

The shape of the compensation device appears to be substantially conical, inscribed in a conical fictitious volume. Said device thus ensures, by its ability to be compressed in position and by its spring effect, the holding in position of the packaged products. Other forms of helix can be considered such as, for example, propellers against rotation direction or shape not strictly conical but slightly rhomboid.

When the compensation device is of apparent polyhedral shape, the at least one deformable connecting means is formed by at least one tongue and preferably two tabs opposite or regularly distributed in space, this at least one tongue being connected by its end. lower. to a large base preferably circularly attached to the lower part of the cap-lid and its upper end to the small polygonal or circular base of very small dimension in physical contact with the packaged product.

The shape of the compensation device appears to be substantially polyhedral, inscribing itself in a polyhedral fictitious volume.

Said device thus ensures, by its ability to be compressed in position and by its spring effect, the holding in position of the packaged products. The section of the tongues is sufficiently thin, whether circular or polygonal, so that said tongues can deform in a reversible manner, under the effect of the pressure exerted on said tongues during the closing of the filled container.

The spring effect remains intact in time insofar as the deformations remain in the range of the reversible elastic deformations and that there is no creep of the constituent materials of the compensation device. The pressure exerted on the product conditioned by the compensation device remains unchanged.

Said compensation device is assembled by its large base, on the lower part of the housing containing the desiccant and preferably on the inner lower part of said housing, by a means of assembly.

Said assembly means is preferably selected from the clipping techniques, interlocking, crimping, press fitting, gluing, welding.

Said compensation device may be, by its large base, also connected to a cylindrical skirt whose other end terminates in a collar thus extending the device to allow its assembly by clipping, snap-fitting, crimping, press fit, gluing, welding, not on the bottom of the housing containing the desiccant but on the bottom of the cap-cover, the collar for example by force fitting into a suitable circular housing, which may be a groove, positioned in the bottom of said cap-lid.

Said compensation device, with its conical or deformable polyhedral shape but with initial shape memory, still retains its function of spring compensator. According to the invention, the device constitutes a separate part, injected separately from the cap-cover, and then assembled to said cap-cover. The compensation device is mounted after the housing containing the desiccant has been filled, then closed by its porous membrane with moisture, which simplifies this filling and closing operation and makes it easy to automate. The compensation device is also assembled to the lid-cap filled with its desiccant in an automated mounting operation.

The compensation device, according to the invention, can also be manufactured in a different material from that used to manufacture the cap-cover to give it specific "spring" properties.

It is therefore possible to equip a container of the aforementioned means, that is to say cap-lid desiccant reclosable hinge and burglar indicator with a compensation device, without this device does not come into collision with the edge of the container because of its minimum height necessary for its mechanical compensatory action.

Polymeric materials:

The polymeric materials desirable for producing the cap-lid are generally and not exclusively selected from the group of materials composed of thermoplastic polymers, including in particular homo and or copolymeric polyolefins such as polyethylenes, polypropylenes, copolymers ethylene / propylene used alone or in mixture, formulated or not.

Other thermoplastic materials 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).

Mono-olefin elastomers such as, for example, isobutylene / isoprene, ethylene-vinyl acetate (EVA), ethylene-propylene (EPR), ethylene-propylene-diene (EPDM) polymers, ethylene-acrylic esters ( EMA-

EEA), fluorinated polymers, diolefin rubbers, such as, for example, polybutadiene, butadiene-styrene copolymers (SBR), condensation-based rubbers, such as, for example, polyester thermoplastic rubbers and polyurethanes, silicones, styrenic rubbers, such as styrene-butadiene-styrene (SBS), styrene-isoprene-styrene (SIS), styrene-ethylene butadiene styrene

(SEBS) and other block copolymers, used alone or in a mixture, formulated or not, may also be used.

The polymeric materials desirable for producing the compensation device may be chosen from those mentioned above, but with a higher rigidity modulus of concern than for those used for the cap-lid which must provide a sealing function with the container.

The embodiment of the cap-lid and the compensation device is preferably that of the injection molding thermoplastics.

The container equipped with its cap-lid according to the invention is intended for the packaging of solid products such as pellets, tablets, sensitive to moisture and to be held in position to avoid the risk of damage by mechanical effect.

The invention will be better understood thanks to the numerical description of the figures below, these figures having only an illustrative non-limiting character of a particular cap-lid of the invention.

FIG. 1 represents a perspective view of a lid-cap mounted on a container, equipped with its pyramidal apparent shape compensation device, in the open position;

FIG. 2 represents a perspective view of a lid-cap mounted on a container, equipped with its pyramidal apparent shape compensation device, in the closed position, said compensation device pressing on the packaged product;

FIG. 3 represents a bottom perspective view of the cap-lid separated from its pyramidal apparent shape compensation device;

FIG. 4 represents a perspective view of a lid-cap mounted on a container, equipped with its apparent conical shape compensation device in the open position;

FIG. 5 represents a perspective view of a lid-cap mounted on a container, equipped with its conical apparent-shape compensation device, in the closed position, said compensation device pressing on the packaged product;

- Figure 6 shows a bottom perspective view of the cap-lid separated from its conical apparent shape compensation device.

- Figure 7 shows a perspective view of a conical apparent form of compensation device, having a skirt for mounting by snap-on bottom of the cap-lid;

FIG. 8 is a perspective view of a lid-cap mounted on a container, in the open position, but separated from its conical apparent-shape compensating device, having a skirt as shown in FIG. 7;

FIG. 1 represents a perspective view of a cap-lid (1), according to the invention, mounted on a container (2) equipped with its compensation device (3) of apparent pyramidal shape, in the open position.

The cap-lid (1) according to the invention comprises: a sealing means (4) for sealing the open end of a tubular container (2) constituting the stacked product conditioning zone (20), said means shutter also having a gripping tab

(16) to facilitate the opening of the lid cap, desiccant means (5) placed on the part of the closure means (4) internal to the container, which is a housing (6) in which is placed a desiccant

(7), said housing being closed by a moisture-porous membrane (8), a fixing means (9) placed between the closure means (4) and the open end of the tubular container (2), irreversibly mechanically engaging said container (2), upon its final closure after filling, a hinge (10) for connecting the closure means (4) to the fastening means (9), a control panel; tamper (11) having the ability to visually testify to the first opening of said container equipped with its cap-lid (1), said tamper evident being constituted by breakable bridges (12) positioned between the fixing means (9) of type fixing ring and the closure means (4), a compensation means (3) that is to say the compensation device for maintaining the packaged products (20) under mechanical pressure to avoid the risk of seeing the products stacked before use inadvertently inside the container during transport.

FIG. 2 represents a perspective view of a cover-cap (1) mounted on a container (2), equipped with its pyramidal apparent compensation device (3), in the closed position, said compensation device (3). pressing on the packaged product (20).

FIG. 3 represents a perspective view from below of the cap-lid (1) separated from its device compensation (3) of apparent pyramidal shape. Said compensation device (3) comprises four opposite tabs (13) regularly distributed in space, connected at their lower ends to a large circular base (14) connected to the lower part of the cover cap and at their upper end to a small circular base of very small size (15) in physical contact with the packaged product. FIG. 4 represents a perspective view of a lid-cap (1) mounted on a container (2), equipped with its conically apparent compensation device (3) in the open position. The difference with respect to FIG. 1 lies in the apparent conical and not polyhedral shape of the compensation device.

FIG. 5 represents a perspective view of a cover-cap (1) mounted on a container (2), equipped with its conically apparent compensation device (3), in the closed position, said compensation device pressing on the packaged product (20). The difference with respect to FIG. 2 resides, in the form of the compensation device, of conical configuration.

FIG. 6 is a bottom perspective view of the cover cap (1) separated from its conically apparent compensation device (3). Said compensation device (3) comprises three spirals

(13) regularly distributed in space, connected at their lower ends to a large circular base (14) connected to the lower part of the lid plug

(1) and at their upper end to a small circular base of very small dimension (15) in physical contact with the packaged product. FIG. 7 represents a perspective view of a conical apparent shape compensation device, having a skirt enabling it to be mounted by snap-fastening at the bottom of the cap-cover. Said compensation device (3) comprises three spirals (13) regularly distributed in space, connected at their lower ends to a large circular base (14), itself connected to the lower part of the cover cap (1) by the intermediate of a cylindrical skirt (16) and a circular collar (17) and at their upper end to a small circular base of very small dimension (15) in physical contact with the packaged product. The circular flange (17) is clipped into a suitable circular housing positioned at the bottom of the cap-lid.

FIG. 8 represents a perspective view of a lid-cap (1) mounted on a container (2), in the open position but separated from its conically apparent compensation device (3), having a skirt (16), with collar (17).

Claims

1. Resealable desiccant lid-hinged lid, constituting the means for sealing the open end of a tubular container for the packaging of moisture-sensitive products, further comprising a desiccant means, a fixing means placed thereon between the closure means and the open end of the tubular container, a burglary witness, a means of compensation for holding the packaged products, positioned inside the closure means and secured to said means for closing. shutter, characterized in that said compensating means is a substantially conical, frustoconical, polyhedral, truncated polyhedral hollow shape composed of a large annular base and a small base parallel to the large base, this small base in contact with the packaged products being coaxial and connected to the large base by at least one deformable connecting means under the effect of a mechanical pressure and having the ability to regain its original shape when said pressure is removed.

2. A cap-lid according to claim 1 characterized in that the ratio of diameters of the portion of the compensation device in contact with the packaged product, that is to say its small base and the end of said device connected at the bottom of the cap-lid, that is to say its large base, varies between 0.05 and 0.9 and more preferably between 0.1 and 0.6.

3. A cap-lid according to either of claims 1 and 2 characterized in that the compensation device has an apex angle in the range of 30 ° to 120 °.

4. The cap-lid according to at least one of claims 1 to 3 characterized in that the at least one connecting means of the compensation device can be:

at least one deformable propeller wound on a fictitious cone and coaxial with the axis of the device and appearing as a frustoconical or conical spring, or

at least one deformable tongue appearing as one of the edges of the faces of the fictional polyhedron in which the device is inscribed or belonging to the imaginary surface of a cone or a truncated cone.

5. The cap-lid according to at least one of claims 1 to 4 characterized in that the at least one deformable connecting means of the compensation device is formed by at least one helix.

6. The cap-lid according to at least one of claims 1 to 4 characterized in that the at least one deformable connecting means of the compensation device is preferably formed by at least two propellers in opposite directions or not regularly distributed in the space.

7. The cap-lid according to at least one of claims 1 to 4 characterized in that the at least one deformable connecting means of the compensation device is formed by at least one tab.

8. The cap-lid according to at least one of claims 1 to 4 characterized in that the at least one deformable connecting means of the compensation device is preferably formed of at least two tabs opposite or evenly distributed in space.

9. The cap-lid according to at least one of claims 1 to 8 characterized in that the compensation device is assembled by its large base, on the lower part of the housing containing the desiccant, by means of assembly.

10. The cap-lid according to at least one of claims 1 to 8 characterized in that the -compensation device is, through a skirt and collar extending its large base, assembled on the bottom of the cap-lid by means of assembly.

11. A cap-lid according to claims 9 or 10 characterized in that the assembly means is preferably selected from the techniques of clipping, bouterollage, crimping, press fitting, gluing, welding.

Cover cap according to at least one of claims 1 to 11, characterized in that the compensation device is made by injection molding, from thermoplastic polymer materials.

13. A cap-lid according to claim 12 characterized in that the thermoplastic polymer materials are selected from the group consisting of polyolefins homopolymer and copolymers, polyamides (PA), polystyrenes (PS), copolymers -10 acrylonitrile butadiene styrene (ABS), styrene-acrylonitrile copolymers (SAN), polymethylmethacrylates (PMMA), polyethylene terephthalates (PET), polybutyleneterephthalates (PBT), polyacetals (POM), polyvinylchlorides ( PVC), polycarbonates (PC).

14. The cap-lid according to claim 12, characterized in that the polymeric materials

Thermoplastics are selected from the group consisting of

- by monoolefins elastomers Such as polymers of ¹ isobutylene / isoprene • ethylene-vinyl acetate (EVA), ethylene-propylene (EPR), ethylene-propylene-diene (EPDM), ethylene-acrylic esters

(EMA-EEA), fluorinated polymers, diolefin rubber, such as polybutadiene, butadiene-styrene copolymers (SBR), condensation-based rubbers such as polyester thermoplastic rubbers and

Polyurethanes, silicones, styrenic rubbers, such as styrene-butadiene-styrene (SBS), styrene-isoprene-styrene (SIS), styrene-ethylene butadiene styrene (SEBS) and other copolymers block, used alone or as a mixture, formulated or not.

15. The cap-lid according to at least one of claims 1 to 14 characterized in that the desiccant means is constituted by a housing present on the bottom of the cap-lid, said housing containing a dehydrating agent selected from the group consisting of silica gels, molecular sieves or other desiccants, in powder form or deposited on a powdery support or containing a capsule made of a desiccant polymer material containing or not desiccant fillers.

16. The cap-lid according to at least one of claims 1 to 15 characterized in that the fastening means placed between the closure means and the open end of the container is of the ring, collar, ring type.

17. The cap-lid according to claim 16 characterized in that the fastening means is secured to the container by press fitting, clipping, gluing, welding.

Cover cap according to at least one of claims 1 to 17, characterized in that the tamper indicator is formed by micro-links connecting all or part of the lower peripheral surface of the cap-cover to all or part of the upper peripheral surface of the ring, collar or fixing ring.

19. The cap-lid according to at least one of claims 1 to 18 characterized in that the hinge is integral or mechanical type.

20. Use of the device according to at least one of claims 1 to 19 to the packaging of solid products such as tablets, tablets, sensitive to moisture and to be held in position to avoid the risk of damage by mechanical effect.