PT2020193821B - Capping device intended to be fixed on the neck of a container - Google Patents

Abstract

THE INVENTION RELATES TO A CLOSING DEVICE (1) INTENDED TO BE ATTACHED TO A NECK (2) OF A CONTAINER IN ORDER TO SEAL A HOLE (5) IN SAID NECK (2), WHICH THE CLOSING DEVICE INCLUDES : - A LOWER RING (3) INCLUDING A FIRST SECTOR (15) INTENDED TO BE RETAINED AXIALLY IN THE NECKLACE (2) AND A SECOND SECTOR (16); - A LID (4); E - A JOINT DEVICE (6) CONNECTING THE COVER (4) TO THE SECOND SECTOR (16) OF THE LOWER RING (3); - THE FIRST SECTOR (15) AND THE SECOND SECTOR (16) OF THE LOWER RING (3) ARE ARTICULATED TOGETHER SO THAT THE SECOND SECTOR (16) ROTATES IN RELATION TO THE FIRST SECTOR (15) FROM A LOWER POSITION TO AN ELEVATED POSITION TO ALLOW THE LID (4) TO MOVE AXIALLY AWAY FROM THE NECK NECK (2) FROM THE CLOSED POSITION TO A RELEASED POSITION IN WHICH SAID LID (4) IS NO LONGER ATTACHED TO THE NECK (2) OF THE CONTAINER; THE LINKING DEVICE (6) IS CONFIGURED TO ALLOW THE LID (4) TO ROTATE BETWEEN SAID RELEASED POSITION AND A FOLDED OPEN POSITION IN WHICH THE LID (4) IS WITHDRAWN FROM THE HOLE (5) OF THE NECKLACE (2).

Description

DESCRIPTION

CLOSING DEVICE INTENDED TO BE ATTACHED TO THE NECK OF A CONTAINER

FIELD OF TECHNIQUE

The invention relates to a container closing device and an assembly including a container equipped with such a closing device.

The invention relates more particularly to a closing device that allows a lid to be kept attached to the neck of a container, thus avoiding losing the lid in nature.

BACKGROUND OF THE TECHNIQUE

In the state of the art, closing devices are known that allow a lid to be secured to a container neck. A connection device of this type is described, for example, in document US2018086510 in the name of the Applicant.

Closing device includes a lower ring which is intended to be retained in the neck of the container, a lid which is intended to cover the orifice of the container to seal the same, two elastic blades which connect the lid to the lower ring, and a closing device. lock placed to lock the lid in a folded open position.

A device of this kind is not entirely satisfactory. In particular, this lid is intended to fit over the neck of the container. Furthermore, the movement of the lid between the closed position and the folded open position is a simple rotational movement, which limits the height of the lid that can be used. This limits the applications of such a closure device. In particular, it is not suitable for containers intended to receive carbonated drinks due to the fact that the pressure prevailing inside containers of this type would lead to undesirable openings of the lid.

SUMMARY

An underlying idea of the invention consists of proposing a plugging device that allows keeping a lid attached to the neck of the container that is reliable, easy to make and use and capable of guaranteeing satisfactory fixation of the lid in the closed position.

According to one embodiment, the invention provides a plugging device intended to be attached to the neck of a container in order to seal a hole in said neck, wherein the closing device includes:

- a lower ring that includes a first sector intended to be retained axially in the neck and a second sector;

- a lid including an upper wall and an external peripheral skirt, wherein the lid can be arranged in a closed position in which the upper wall seals the orifice of the neck and the peripheral skirt surrounding said neck;

It is

- a hinge device that connects the cover to the second sector of the lower ring;

- the first sector and the second sector of the lower ring being hinged together so that the second sector rotates relative to the first sector from a lowered position to a raised position to allow the lid to move axially away from the neck from the closed position to a released position in which said lid is no longer coupled to the neck of the container;

- the pivot device configured to allow the cap to rotate between said released position and a folded open position in which the cap is withdrawn from the neck hole;

wherein the second sector includes at least one support element which projects radially towards the interior of the lower ring and which is configured to be positioned above the engagement collar, supported against it, when the second sector is in the raised position.

Thus, the kinematics of the lid between the closed position and the open position include a displacement of the lid from the bottom to the top and then a hinge movement towards the rear of the lid. Consequently, this allows the lid to have more height and optionally screw onto the neck. Furthermore, a closure device of this type can be used for a wide variety of applications and, in particular, for containers containing carbonated beverages.

Furthermore, thanks to the support element that allows the second sector to be kept in a raised position, the lid remains uncoupled from the neck. This also ensures good positioning of the cap on the neck during its movement from the folded open position to the closed position and, in particular, without the consumer having to exert an uncontrolled traction force on the second sector of the lower ring to allow the placement of the cap. cap on the neck.

According to other advantageous embodiments, a closure device of this type may have one or more of the following characteristics.

According to one embodiment, the first sector and the second sector are separated from each other by two narrow areas in which the lower ring locally has a reduction in radial thickness to allow articulation of the second sector with respect to the first sector.

According to another embodiment, the lower ring has a sufficiently thin thickness to allow articulation movement of the second sector with respect to the first sector without the first sector and the second sector being separated from each other by two narrow areas.

According to one embodiment, the second sector extends over the entire height of the lower ring. In other words, the second sector includes the entire portion of the lower band that extends into the corresponding angular range. This makes it possible, in particular, to guarantee good tear resistance of the lower ring.

According to another embodiment, the second sector extends only over a part of the height of the lower ring.

According to one embodiment, the second sector has a height, that is, a dimension considered parallel to the geometric axis X, which is substantially the same as that of the first sector.

According to one embodiment, the at least one support element is configured so that, when the second sector is in the raised position, the engagement collar exerts a pulling force on the lower ring that produces a reaction force that pushes said at least one support element against the coupling collar. This makes it possible to reduce the gap, thus improving the hold of the lid in position, in particular in the folded open position.

According to one embodiment, the second sector includes various support elements.

According to one embodiment, the at least one support element is positioned in a central area of the second sector.

According to one embodiment, the second sector extends over an angular range comprised between 120 and 200° and, preferably, comprised between 160 and 190°.

According to one embodiment, the neck to which the closure device is intended to be attached includes a snap collar, wherein the first sector includes one or more retaining elements projecting radially toward the interior of the lower ring, which are intended to be disposed below the coupling collar and are configured to axially retain the lower ring to the neck of the container.

According to one embodiment, the articulation device is connected to the second sector in a central zone of the second sector.

According to one embodiment, the central zone of the second sector extends over an angular range between 20 and 90°.

According to one embodiment, the articulation device includes two elastic blades that connect the outer peripheral skirt and the second sector.

According to one embodiment, the second sector of the lower ring includes a recessed portion and elastic blades are attached to the second sector of the lower ring in said recessed portion. According to one embodiment, the outer peripheral skirt includes a recessed portion and elastic blades are attached to said outer peripheral skirt at said recessed portion. This configuration allows for elastic sheets of sufficient length, limiting the dimensions of the interstices, arranged between the lid and the lower ring and capable of allowing the passage of dust.

According to one embodiment, the closing device further includes a locking device configured to lock the lid in the folded open position.

According to one embodiment, the locking device includes a flap disposed between the two elastic blades and extending upwardly from the lower ring and a bead projecting radially outwardly from the outer peripheral skirt, wherein the bead is disposed. to abut the flap when the lid rotates between the released position and the folded open position, wherein the elastic blades, flap and bead are configured so that during the rotational movement of the lid between the released position and the open position folded, the elastic sheets are subjected to a tensile force that increases to an intermediate unstable position and then decreases from said intermediate unstable position towards the folded open position.

According to one embodiment, the lower ring is intended to be rotatably movably mounted in the neck about a geometric axis on the neck of the container, in order to allow the lid to screw on and off the neck around the geometric axis X.

According to one embodiment, the closure device is molded in a single piece.

According to one embodiment, the closing device is capable of being molded into the closed position of the lid.

According to one embodiment, the lower ring is connected to the outer peripheral skirt via breakable bridges. Breakable bridges of this type are intended to serve as tamper-evident seals.

According to one embodiment, the lid includes an inner skirt that extends perpendicularly downward from the top wall of the lid and is intended to be inserted into the neck hole.

According to one embodiment, the cap further includes an annular flap extending from the upper wall radially between the inner skirt and the outer peripheral skirt and intended to contact an outer face of the neck.

According to one embodiment, the lid includes a gripping visor that projects radially outward from the outer peripheral skirt. According to one embodiment, the gripping visor is diametrically opposed to the articulation device. This allows optimizing the leverage effect attributable to the application of effort on the visor and better understanding on the part of the consumer.

According to one embodiment, the invention also provides an assembly including a container equipped with a neck including a engaging collar and an orifice and a closing device mentioned above, wherein the first sector of the lower ring is retained axially in said hitch collar.

BRIEF DESCRIPTION OF FIGURES

The invention will be better understood and other purposes, details, features and advantages thereof will be more clearly appreciated in the course of the following description of several particular embodiments of the invention, given by way of illustration only and not limitation, with reference to accompanying drawings.

- Figure 1 is a perspective view of a closing device according to a first embodiment, in a closed position.

- Figure 2 is a side view of the closure device of Figure 1, wherein the lid is in a released position in which it is no longer attached to the neck of the container and is therefore capable of being folded into a folded open position.

- Figure 3 is a sectional view of the closing device in which the lid is in the released position, as illustrated in Figure 2.

- Figure 4 is a side view of the closing device of Figures 1 to 3, in a folded open position.

- Figure 5 is a sectional view of the closing device in the left open position, illustrated in Figure 4.

- Figure 6 is a detailed view of Figure 5, which illustrates a support element formed in the second sector of the lower ring and which rests against the engagement collar enabled on the neck of the container when the second sector of the lower ring is in an elevated position.

- Figure 7 is a bottom view of the closing device of Figures 1 to 6, illustrating the support elements and the retention elements activated on the inner surface of the lower ring.

- Figure 8 is a detailed view illustrating the geometry of the support elements.

- Figure 9 is a detailed view illustrating the geometry of the retention elements.

- Figure 10 is a perspective view of a closing device according to a second embodiment, in a folded open position.

- Figure 11 is a perspective view of a closing device according to a third embodiment, in a folded open position.

- Figure 12 is a perspective view of a closing device according to a fourth embodiment, in a folded open position.

DETAILED DESCRIPTION OF MODALITIES

In the description and in the Figures, the geometric axis The geometric axis X thus corresponds to the geometric axis of rotation of the closure device lid when it is screwed onto the container neck. By convention, radial orientation is directed orthogonally to the X axis. External terms are used to define the relative position of one element with respect to another, by reference to the X axis, an element close to the qualified as internal as opposed to an external element located radially at the periphery. The terms upper and lower are used to define the relative position of one element in relation to another by reference to a position in which the hole in the neck is oriented upwards and the lid is in a closed position on the neck of the container, with a lower being called a element intended to be placed lower and an element intended to be placed higher being called superior.

With reference to Figures 1 to 9, a closing device 1 according to the first described embodiment. The closing device 1 is intended to be mounted on the neck 2 or the neck of a container, as represented in Figures 1 to 6. The container is, for example, a bottle.

closing device 1 includes a lower ring 3 which is intended to be retained in the neck 2 of the container, a lid 4 which is intended to cover the orifice 5 of the container to seal the same, and a hinge device 6 which connects the lid 4 to the lower ring 3. Advantageously, the closing device 1 also includes a locking device 7 positioned to lock the lid 4 in a folded open position, represented in Figures 4 and 5, wherein the lid 4 is removed from the hole 5 of the container and not obstructs the discharge of the contents of the container.

The lid 4 includes an upper wall 8 intended to be arranged substantially orthogonal to the geometric axis X, opposite the orifice 5 of the neck 2 when said lid 4 is in the closed position. The lid 4 additionally includes an external peripheral skirt 9 intended to surround the neck 2 of the container when the lid 4 is in the closed position. The outer peripheral skirt 9 extends downwardly perpendicular to the upper wall 8 from the outer periphery of said upper wall 8.

As shown in Figures 3 and 5, the external peripheral skirt 9 has, on its internal face, a thread 10 formed by a series of helical ribs intended to cooperate with a complementary thread 11, formed by a series of helical ribs, enabled on the surface outside of the neck 2. In this way, the lid 4 can be screwed onto the neck 2 to close the container and unscrewed from the neck 2 to open the container. The lid 4 is therefore movable between the closed position, represented in Figure 1, and a released position, represented in Figures 2 and 3. In said released position, the lid 4 is no longer coupled to the neck 2 of the container. It thus has the ability to be folded into the folded open position, represented in Figures 4 and 5, wherein the lid 4 is removed from the hole 5 of the neck 2 so as not to impede the leakage of the contents of the container.

As shown, for example, in Figures 1 and 2, the external peripheral skirt 9 presents, on its external face, a series of grooves distributed around the geometric axis rough surface that facilitates the grip of the lid 4 by the user or by the bottling line assembly device.

The lid 4 also includes an inner skirt 12, shown in particular in Figure 3, which extends perpendicularly downwards from the upper wall 8 of the lid 4 and is sized to be inserted into the hole 5 of the neck 2. 4 also includes an annular lip 13, also visible in Figure 3, which extends, from the top wall 8, radially between the inner skirt 12 and the outer peripheral skirt 9. The inner skirt 12 and the annular flap 13 are sized so that, when the lid 4 is in the closed position, on the neck 2 of the container, the inner skirt 12 is in contact against the inner face of the neck 2, while the annular flap 13 is in contact with the outer face of the neck 2. In this way, the internal skirt 12 and the annular flap 13 ensure the sealing of the lid.

Advantageously, the lower ring 3 is, before the first opening of the container, connected to the lid 4 by breakable bridges 14, visible in Figure 1, intended to break during the opening of the lid 4. These breakable bridges 14 thus constitute tamper-proof seals. More particularly, breakable bridges 14 are distributed around the geometric axis X and connect the upper edge of the lower ring 3 and the lower edge of the outer peripheral skirt 9. According to another embodiment, not shown, the lower ring 3 and the lid 4 are connected to each other by a tear-resistant band which is sandwiched axially between the cover 4 and the lower ring 3 and which is, on the one hand, connected to the lower ring 3 by breakable bridges and, on the other hand, connected to the cover 4 by breakable bridges.

lower ring 3 is held axially in the neck 2 of the container, being able to rotate at the same time relative to it around the geometric axis and a second sector 16, in which the lower ring 3 is connected to the cover 4 by means of the articulation device 6.

As shown in Figure 7, the lower ring 3 includes two narrow areas 17, i.e., whose radial thickness is smaller than the radial thickness of the lower ring 3 outside said narrow areas 17. The two narrow areas 17 delimit the first sector 15 and the second sector 16. The narrow areas 17, therefore, form pivots that allow the second sector 16 to articulate with respect to the first sector 15. In the embodiment shown, the two narrow areas 17 are diametrically opposed, on both sides of the ring lower 3, so that the first and second sectors 15, 16 each extend over an angular sector of approximately 180°. However, the relative lengths of the first and second sectors 15, 16 are susceptible to variation. Likewise, the second sector 16 has the ability to extend over an angular range comprised between 120 and 200° and, preferably, comprised between 160 and 190°.

Thanks to the above-mentioned structure of the lower ring 3, the second sector 16 is capable of rotating upward relative to the first sector 15, from a lowered position to a raised position, in order to allow the lid 4 to move upward relative to to the neck 2 of the container, until the thread 10 of the lid 4 is removed from the thread 11 located on the neck 2 of the container. In other words, when the cap 4 is unscrewed, the lower ring 3 moves in rotation around the geometric axis axial movement, upwards of the lid 4, from the closed position, represented in Figure 1, to the released position, represented in Figures 2 and 3.

The lower ring 3 is held axially in the neck 2 of the container by means of a coupling collar 18, shown, in particular, in Figures 3, 5 and 6. The coupling collar 18 has a frusto-conical outer surface that tapers upwards, that is, in the direction of orifice 5 of the container. The coupling collar 18 delimits, downwards, that is, in the opposite direction to the hole 5, a projection.

The first sector 15 of the lower ring 3 includes retaining elements 19 that cooperate with the engagement collar 18 enabled on the container to axially retain the lower ring 3 to the neck 2 of the container. The retaining elements 19 are projections, shown in detail in Figure 9, which project radially inwardly from the first sector 15 of the lower ring 3. The retaining elements 19 have a radial dimension that increases, from bottom to top, or that is, in the direction of the upper edge of the lower ring 3. The retaining elements 19 also have an upper, substantially horizontal end, which forms a stop surface 20 intended to be positioned in front of the projection enabled by the engagement collar 18. In the embodiment shown, the retention elements 19 have a general semi-truncoconical shape. During assembly of the closing device 1 on the neck 2 of the container, the retaining elements 19 slide against the frusto-conical surface of the coupling collar 18, then they fit into place behind the coupling collar 18 so that the supporting surfaces 20 of the retaining elements 19 are located opposite the projection.

It should be noted that the geometry of the retaining elements 19 has been described above by way of example and is susceptible to variation.

The second sector 16 includes support elements 21, represented in Figures 3, 5, 6 and 8. As shown in Figure 8, the support elements 21 are positioned in the central part 22 of the second sector 16, that is, in the part of the second sector 16 in which the articulation device 6 is implanted and which extends over an angular range between 20 and 90°. The support elements 21 are formed by projections projecting radially inwardly. The support elements 21 are configured such that, when the second sector 16 is in the lowered position, said support elements 21 are located below the engagement collar 18 and that, when the second sector 16 is in the raised position, said support elements 21 are located above the coupling collar 18 and are supported therein. Due to the connection of the cover 4 with the second sector 16 through the hinge device 6, the lower ring 3 is tensioned during the movement of the second sector 16 from the lowered position to the raised position, which allows the support elements 21 to move from a low position in which they are located below the coupling collar 18 to a high position in which they are located above the coupling collar 18 and are supported therein.

This retention of the central part 22 of the second sector 16 above the coupling collar 18 is particularly advantageous due to the fact that it allows, on the one hand, to keep the lid 4 decoupled from the neck 2 and, on the other hand, a good positioning of the lid 4 in the neck 2 of the container, during its movement from the collapsed open position to the closed position.

On the other hand, when the second sector 16 is in the raised position, the support elements 21 are supported on the coupling collar 18, as shown in Figure 6, so that the coupling collar 18 exerts a pulling force on the lower ring. 3. This produces a reaction force that pushes the support elements 21 against the engagement collar 18. This makes it possible to reduce the gap and thus improve the position of the cover 4, specifically in the folded open position.

When the cover 4 is screwed onto the neck 2 and moves towards the closed position, the outer peripheral skirt 9 rests against the second sector 16 of the lower ring 3 so that the support elements 21 slide against the surface of the coupling collar 18, then snap into place behind the coupling collar 18. Consequently, when the second sector is in the lowered position, the support elements 21 also perform a function of retaining the lower ring 3.

As shown in Figure 8, the support elements 21 have a substantially flat upper surface, which forms a support surface 23 intended to be positioned in front of the projection enabled by the engagement collar 18 when the second sector 16 is in position. The support elements 21 also have a lower surface, in this case substantially flat, which forms a support surface 24 intended to rest against the engagement collar 18 when the second sector 16 is in the raised position. Furthermore, according to one embodiment, the support elements 21 have, between said upper and lower surfaces, an upper part 25 of a semi-tronchoconical shape and a lower part 26 of a semi-cylindrical shape.

As shown in Figure 7, the second sector 16 also has the ability to include retention elements 27 that have an identical structure to the retention elements 19 of the first sector 15. In this case, said retention elements 27 are positioned outside the central zone 22 in which the articulation device 6 is implanted.

hinge device 6 is configured to allow the lid 4 to rotate between the released position, shown in Figures 2 and 3, and the folded open position, depicted in Figures 4 and 5. In the embodiment shown, the hinge device 6 includes two blades elastic bands 28, 29 which connect the lid 4 and, more particularly, the external peripheral skirt 9 of the lid 4 to the second sector 16 of the lower ring 3.

The two elastic blades 28, 29 are positioned in the central part 22 of the second sector 16. On the other hand, in order to avoid truncating the thread and deteriorating the pressure resistance for carbonated drinks as little as possible, the articulation device 6 is advantageously connected to the cap 4 in an area that is located axially at the same height as the lower end of the thread 10 and is angularly adjacent to said lower end of the thread, that is, angularly spaced from said lower end of the thread 10 at an angle between 0 and 90° and preferably between 0 and 30°. Advantageously, the elastic blades 28, 29 reach the outer peripheral skirt 9 in a recessed portion. Furthermore, the elastic blades 28, 29 are advantageously fixed to the second sector 16 of the lower ring 3 in a recessed portion. In other words, the elastic sheets 28, 29 extend substantially above the lower limit of the outer peripheral skirt 9 and extend substantially below the upper limit of the lower ring 3.

The locking device 7 includes a tab 30 extending upwardly from the upper edge of the lower ring 3. The tab 30 is disposed between the two elastic blades 28, 29. The locking device 7 further includes a bead 31 that engages projects radially outwards from the outer peripheral skirt 9 of the lid 4. The bead 31 is configured to abut the flap 30 when the lid 4 is rotated towards the folded open position in order to lock the lid 4 in said folded open position.

The stretching possibilities of the elastic blades 28, together with the above-mentioned features of the locking device 7, make it possible to create a hard point in the middle of the collapse path of the lid 4 between the released position, represented in Figures 2 and 3, and the folded open position, represented in Figures 4 and 5. In other words, the elastic blades 28, 29 as well as the locking device 7 are configured so that, during a first part of the movement of the lid 4 from the released position to the collapsed open, the two elastic blades 28, 29 are, due to the support of the bead 31 on the flap 30, subjected to a tensile force which increases to an intermediate unstable position and then decreases from said intermediate unstable position towards the folded open position. This allows cover 4 to be locked in the folded open position.

Advantageously, the locking device 7 is configured so that the opening angle of the lid 4 in said folded open position is greater than or equal to 180°.

Advantageously, the entire closing device is molded from a single piece of synthetic material, such as polyethylene and, advantageously, high-density polyethylene, for example. Advantageously, the capping device is molded in the configuration of Figure 1, i.e. in a closed position, a position in which it can be mounted directly on the neck 2 of the container.

The assembly operation of the closing device 1 with the container, on the one hand, and the opening and closing operations of the lid 4, on the other hand, are described below.

To mount the closing device 1 on the container, the closing device 1 is placed on the neck 2 simply by screwing the lid 4 onto the neck 2, until the retaining elements and support elements 21 enabled on the lower ring 3 exceed the projection delimited by the coupling collar 18. The lower ring 3 is then fixed to the neck 2, although it is at the same time movable in rotation around the geometric axis X of the neck 2.

During the first unscrewing, the cap 4 leaves the closed position, illustrated in Figure 1, and moves away from the lower ring 3 to the released position, illustrated in Figures 2 and 3. The breakable bridges 14 break in the course of this movement. Furthermore, during this movement of unscrewing the cover 4, the lower ring 3 is driven into rotation around the geometric axis X and the second sector 16 of the lower ring 3 rotates towards the raised position as the cover 4 moves away from coupling collar 18.

Subsequently, when the helical ribs of the lid 4 are removed from those of the neck 2, then the lid 4 can be rotated back towards the folded open position. In such a folded open position, the outer peripheral skirt 9 extends upwardly from the upper wall 8.

To close the container, the lid 4 is folded from the folded open position to the released position. Since the second sector 16 is kept in the raised position, placing the lid 4 on the neck 2 of the container is easy. The cap 4 can then be screwed onto the neck 2 to reach the closed position. During screwing of the cover 4, its outer peripheral skirt 9 touches the second sector 16 of the lower ring 3 to return to the lowered position.

Figure 10 represents a closing device 1 according to a second embodiment. This closing device 1 differs from that described above in relation to Figures 1 to 9, in that the lid 4 is intended to fit into the neck 2 of the container and not to be screwed onto said neck 2. The external peripheral skirt 9 and the The neck 2 of the container is therefore devoid of threads. On the other hand, the outer peripheral skirt 9 includes a gripping visor 32 that projects radially outwardly. The gripping visor 32 is advantageously arranged on the opposite side of the articulation device 6. The gripping visor 32 thus forms a gripping surface intended to facilitate visibility, understanding and manipulation of the lid 4, in particular, to make it hinged. to the folded open position.

On the other hand, the lid 4 also includes an annular collar 33 which projects radially outwards from the outer peripheral skirt 9. An annular collar 33 of this type makes it possible to facilitate the gripping of the closing device by the mounting device which is intended to ensure the mounting the lid 4 on the neck 2 of the container.

Figure 11 represents a closing device 1 according to a third embodiment. It does not differ from that described in relation to Figures 1 to 9, except that it includes an annular collar 33, which was previously described in relation to Figure 10, which projects radially outward from the outer peripheral skirt 9.

Figure 12 represents a closing device 1 according to a fourth embodiment. It does not differ from that described above in relation to Figure 11, except that it additionally comprises a gripping visor 32, as described above in relation to Figure 10.

Although the invention has been described in relation to several particular embodiments, it is more than evident that it is not limited in any way by them and that it comprises all technical equivalents of the described means, as well as their combinations, if they fall within the scope of the invention as defined by the claims.

The use of the verb consist in, understand or include and its conjugated forms do not exclude the presence of other elements or other steps beyond those declared in a claim.

In the claims, any numerical references in parentheses should not be construed as limiting the claim.

Claims (14)

1 . Closing device (1) intended to be fixed to a neck (2) of a container including a coupling collar (18) in order to seal a hole (5) in said neck (2), wherein the closing device includes : - a lower ring (3) including a first sector (15) intended to be retained axially in the coupling collar (18) of the neck (2) and a second sector (16); - a lid (4) including an upper wall (8) and an external peripheral skirt (9), wherein the lid (4) can be arranged in a closed position in which the upper wall (8) seals the orifice (5) the neck (2) and the peripheral skirt surrounding said neck (2); It is - a pivot device (6) that connects the cover (4) to the second sector (16) of the lower ring (3); - the first sector (15) and the second sector (16) of the lower ring (3) are articulated with each other so that the second sector (16) rotates in relation to the first sector (15) from a lowered position to a raised position to allow the lid (4) to move axially away from the neck (2) from the closed position to a released position in which said lid (4) is no longer coupled to the neck (2) of the container; - the articulation device (6) is configured to allow the lid (4) to rotate between said released position and a folded open position in which the lid (4) is removed from the hole (5) of the neck (2); wherein the second sector (16) includes at least one support element (21) which projects radially towards the interior of the lower ring (3) and which is configured to be positioned above the engagement collar (18), supported against the same, when the second sector (16) is in the elevated position; wherein the closing device (1) is characterized in that the first sector (15) and the second sector (16) are separated from each other by two narrow areas (17) in which the lower ring (3) locally has a reduction in thickness radial to allow articulation of the second sector (16) in relation to the first sector (15). 2. Closing device (1), according to claim 1, characterized in that the second sector (16) extends over the entire height of the lower ring (3). 3. Closing device (1), according to any one of claims 1 to 2, characterized in that the at least one support element (21) is configured so that, when the second sector (16) is in the raised position, the coupling collar (18) exerts a pulling force on the lower ring (3) which produces a reaction force that pushes said at least one support element (21) against the coupling collar (18). 4. Closing device according to any one of claims 1 to 3, characterized in that the at least one support element (21) is positioned in a central area of the second sector (16). 5. Closing device according to any one of claims 1 to 4, characterized in that the second sector (16) extends over an angular range comprised between 120° and 200° and, preferably, comprised between 160° and 190° . 6. Closing device according to any one of claims 1 to 5, characterized in that the neck (2) to which the closing device (1) is intended to be attached includes a coupling collar (18), in which the first sector (15) includes one or more retaining elements (19) projecting radially towards the lower ring (3), which are intended to be disposed below the engagement collar (18) and are configured to axially retain the lower ring (3) to the neck (2) of the container. 7. Closing device according to any one of claims 1 to 6, characterized in that the articulation device (6) is connected to the second sector (16) in a central area of the second sector (16). 8. Closing device according to any one of claims 1 to 7, characterized in that the articulation device (6) includes two elastic blades (28, 29) that connect the outer peripheral skirt (9) and the second sector (16 ) . 9. Closing device according to any one of claims 1 to 8, characterized in that it additionally includes a locking device (7) configured to lock the lid (4) in the folded open position. 10. Closing device according to claims 8 and 9, considered in combination, characterized in that the locking device (7) includes a flap (30) arranged between the two elastic blades (28, 29) and extending towards upward from the lower ring (3) and a bead (31) projecting radially outwards from the outer peripheral skirt (9), wherein the bead (31) is arranged to abut the flap (30) when the lid (4 ) rotates between the released position and the folded open position, wherein the elastic blades (28, 29), the flap (30) and the bead (31) are configured so that during the rotational movement of the lid (4) between the released position and the folded open position, the elastic blades (28, 29) are subjected to a tensile force that increases towards an intermediate unstable position and then decreases from said intermediate unstable position towards the folded open position. 11. Closing device according to any one of claims 1 to 10, characterized in that the lower ring (3) is intended to be movably mounted in rotation on the neck (2) around a geometric axis the outer peripheral skirt (9) of the lid (4) has a helical thread (10) intended to cooperate with a helical thread (11) disposed on the neck (2) of the container, in order to allow the lid (4) to screw and unscrew the neck (2) around the geometric axis X. 12. Closing device according to any one of claims 1 to 11, wherein the closing device is characterized by being molded in a single piece. 13. Closing device according to any one of claims 1 to 12, characterized in that the lower ring (3) is connected to the outer peripheral skirt (9) by breakable bridges (14). 14. Set characterized in that it includes a container equipped with a neck (2) that includes a coupling collar (18) and an orifice (5) and a closing device, as defined in any one of claims 1 to 13, wherein the first sector of the lower ring (3) of the closing device is retained axially in the coupling collar (18) of the neck (2).