ES2929600T3 - Capping device intended to be fixed to the neck of a container - Google Patents

Abstract

Stopper device (1) intended to be fixed to a neck in such a way that it does not get lost in nature and comprising a stopper (4); a ring (3) located under the cover (4) and comprising a first section (15) and a second section hinged together; an articulation device (6) that connects the cover (4) with the ring (3) in a pivotal manner and where the cover (4) comprises a male fixing element (7a) and the ring (3) comprises a fixing element female (7b) configured to cooperate with each other to maintain the cover (4) in relation to the ring (3) in the inclined open position. (Automatic translation with Google Translate, without legal value)

Description

DESCRIPTION

Capping device intended to be fixed to the neck of a container

technical field

The present invention relates to a device for plugging a container and to an assembly comprising a container equipped with such a plugging device.

The present invention relates more particularly to a stopper device that makes it possible to keep a stopper attached to the neck of a container, thus avoiding losing the stopper in nature.

Background art

In the state of the art, corking devices are known that make it possible to keep a cork attached to a neck of the container. Such a plugging device is described, for example, in the document US2018086510 in the name of the applicant.

The plugging device comprises a ring that is intended to be retained in the neck of the container, a plug that is intended to cover the hole of the container to seal it, two elastic sheets that join the plug with the lower ring and an installed blocking device. to lock the plug in a tilted open position. Such a plugging device is not fully satisfactory. In particular, this stopper is intended to snap into the neck of the container and cannot be adapted to other types of neck. In addition, the movement of the stopper between the closed position and the tilted open position is a simple pivoting movement, which limits the height of the stopper and/or the neck that can be used. This limits the applications of said plugging device. In particular, it is not suitable for containers intended to receive soft drinks because the pressure existing inside containers of this type would lead to undesired opening of the cap. For the rest, the blocking device is not adapted for all types of cap and does not ensure sufficient reliability to maintain the tilted-open position in screw caps, for example.

Document WO 2009/048273 discloses a capping device according to the preamble of claim 1. Description of the invention

An idea on which the invention is based is to propose a capping device that allows a cap to be kept attached to the neck of the container, easy to manufacture and use, and that allows the cap to be kept in the tilted-open position in a reliable and robust manner.

According to one embodiment, the invention provides a capping device, intended to be fixed to a neck of a container in order to plug an orifice in said neck, said neck comprising a hooking collar, the capping device comprising:

- a stopper comprising an upper wall and an external peripheral skirt, the stopper being suitable to be arranged in a closed position in which the upper wall closes the opening of the neck and the peripheral skirt surrounds said neck;

- a ring located below the plug in the closed position and comprising a first sector intended to be retained axially in the neck hooking collar and a second sector, the first sector and the second sector of the ring being articulated together in such a way that the second sector pivots with respect to the first sector from a lowered position to a raised position to allow the plug to move axially away from the neck from the closed position to a released position in which the plug is no longer within the neck of the container ; Y

- an articulation device that connects the plug to the second sector of the ring, the articulation device being configured to allow the plug to pivot along an axis of rotation between said released position and a tilted open position in which the plug is disconnected from the hole By the neck;

wherein the cap comprises a male fixing element formed on the outer peripheral skirt and protruding radially outwards from the cap, and the second sector of the ring comprises a female fixing element, the male cap fixing element being female fixing elements of the ring configured to cooperate with each other to maintain the plug with respect to the ring in the tilted open position,

wherein the male fastener element comprises a tab that projects axially upwards when the cap is in the tilted open position, and the female fastener element comprises a housing provided in the ring and a heel made on an outer surface of the ring, partially covering the housing and protruding axially downwards, the tab being configured to be inserted and retained in the housing after elastic deformation of the male fixing element upon passage of the heel, the heel thus forming a stop for the tab in the toggle open position, and

wherein the housing is bounded downwards by a lower surface against which the lug is configured to abut during movement of the cap toward the tilted-open position in order to exert a downwardly directed force on the ring allowing it to be returned to bring the second sector of the ring to the lowered position.

Thanks to these characteristics, the stopper device makes it possible to propose a stopper that can remain attached to the neck with the aid of the ring and the articulation device. The articulation of the ring makes it possible, for its part, to adapt the capping device to long necks, for example, for the use of a cap that must be screwed on. For the rest, the male fixing element and the female fixing element make it possible to provide a robust locking device that adapts to any type of cap, for example, that has to be screwed or snapped. In addition, the arrangement of the lug in the housing and its orientation with respect to the heel allow the tilted open position to be maintained in a robust manner.

Finally, since the second sector of the ring is not very susceptible to deformation, the relative position of the female fixing element with respect to the articulation device is constant, which makes it possible to ensure precise positioning of the male fixing element with respect to the female fixing element during pivoting of the plug towards its tilted open position.

According to some embodiments, a capping device of this type may comprise one or more of the following characteristics.

According to one embodiment, the housing comprises a beveled lower part that forms said lower surface.

According to one embodiment, the temple and the heel extend parallel to the axis of rotation.

The temple and the heel thus form a press-fit connection made in the same direction as the axis of rotation, thus one speaks of a horizontal press-fit. Unlike a vertical press-fit, for example, a press-fit of this type allows to have a better grip in the tilted-open position due to its orientation with respect to the kinematics of the cap. Otherwise, because the press fit extends in this direction, the grip is further improved.

By "extending in a direction" it is meant that the largest dimension of the element is formed in this direction.

According to one embodiment, the male fixing element comprises a main portion that connects the tab to the external peripheral skirt of the cap, the tab and the main portion being inclined relative to each other to form a hook.

In this way, the hook shape of the male fixing element allows better holding in the housing of the female fixing element when the cap is in the tilted open position.

According to one embodiment, the plugging device is made by molding with the aid of two half-shells that are joined at the level of a common radial plane, the male fixing element of the plug and the female fixing element of the ring being made each one on both sides of said common plane.

In this way, the design of the capping device allows demoulding with a mold with two half-shells without leaving any remains.

According to one embodiment, the common plane is oriented to pass through a central axis X of the plugging device and through the center of the articulation device.

According to one embodiment, the plug's male fixing element is formed in line with and centered above the articulation device.

According to one embodiment, the female fixing element of the ring is formed in line with and centered below the articulation device.

According to one embodiment, the articulation device comprises a deformable sheet that connects the external peripheral skirt and the second sector of the ring.

In this way, the deformable sheet has the function of a hinge by elastic deformation thereof during the displacement of the stopper from the released position towards the tilted-open position.

According to one embodiment, the deformable sheet includes a predetermined pivot area configured so that the axis of rotation of the plugging device is located in this predetermined pivot area.

According to one embodiment, the predetermined pivot zone is made with the aid of a portion in zigzag of the deformable sheet.

According to one embodiment, the first sector and the second sector are separated from one another by two thin zones in which the ring locally has a reduction in radial thickness to allow the articulation of the second sector with respect to the first sector.

According to one embodiment, the ring is intended to be mounted so that it can be rotated on the neck about a central axis X of the capping device and the external peripheral skirt of the cap has a helical thread intended to cooperate with a helical thread provided in the neck of the container to allow screwing or unscrewing of the plug in the neck around the central axis X.

According to one embodiment, the ring includes a notch configured to locally deflect the ring from the hooking collar, the notch being diametrically opposite the articulation device, and the plug includes a closing element that protrudes axially from the external peripheral skirt and that it is diametrically opposed to the articulation device, the closing element being intended to cooperate with the hooking collar provided on the neck in order to place the closing element in the notch and to maintain the cap in the closed position.

According to one embodiment, the lower ring is connected to the outer peripheral skirt by frangible bridges.

According to one embodiment, the second sector extends over the entire height of the ring.

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

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

According to one embodiment, the plugging device is made by molding in a single piece.

According to one embodiment, the invention also provides an assembly comprising a container equipped with a neck comprising a hooking collar and an orifice, and equipped with a capping device mentioned above, the first sector of the ring of the capping device being plugged retained axially in the neck coupling collar.

According to one embodiment, the first sector comprises one or more retaining elements that protrude radially towards the inside of the ring, are arranged below the hooking collar and are configured to retain the ring axially on the neck of the container.

According to one embodiment, the housing is limited downwards by a lower surface against which the lug is intended to abut during the movement of the cap towards the tilted open position, which makes it possible to exert on the ring a force directed downwards and which makes it possible to bring the second sector of the ring back to the lowered position in which it is aligned with the first sector.

Brief description of the figures

The invention will be better understood and other objectives, details, characteristics and advantages thereof will appear more clearly in the course of the following description of various particular embodiments of the invention, given solely by way of illustration and without limitation, with reference to the attached drawings.

FIG. 1 represents a perspective view of a plugging device according to one embodiment in a closed position.

Figure 2 is a side view of the stopper of Figure 1 illustrating the stopper is in a released position in which it is no longer within the neck of the container and is thus capable of being tilted towards a tilted open position .

Figure 3 is a side view of the plugging device of Figure 1 in which the plug is in the tilted open position.

Figure 4 is a sectional view along the line IV-IV of Figure 3 showing the stopper device with a stopper in the tilted-open position.

Figure 5 is a view of detail V of figure 4 that represents, specifically, the male fixing element of the stopper placed in the female fixing element of the ring.

Figure 6 is an inclined perspective view of a capping device according to another embodiment, in order to distinguish a part of the internal wall of the capping device.

Figure 7 is an inclined perspective view of the plugging device of Figure 6 from an opposite point of view.

Description of the embodiments

In the description and the figures, the X axis corresponds to a central axis of the plugging device intended to be positioned orthogonal to the plane of the hole to be sealed when the plugging device is in the closed position and closes said hole. The X axis thus corresponds to the axis of rotation of the cap of the corking device when it is screwed into the neck of the container. By convention, the "radial" orientation is directed orthogonally to the X axis. The terms "external" and "internal" 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 X axis. X is thus qualified as internal as opposed to an external element located radially in the periphery. The terms "upper" and "lower" are used to define the relative position of one element with respect to another by reference to a position in which the hole in the neck is directed upwards and the plug is in the closed position in the neck. of the container, designating an element intended to be placed lower by lower and designating an element intended to be placed higher by upper.

With reference to figures 1 to 5, a capping device 1 is described according to one embodiment. The corking device 1 is intended to be assembled on the neck 2 or neck of a container, as represented in figures 1 to 4. The container is, for example, a bottle.

The plugging device 1 comprises a so-called inviolability ring 3 that is intended to be retained in the neck 2 of the container, a plug 4 that is intended to cover the hole 5 of the container to seal it, and an articulation device 6 that joins the plug 4 with the lower ring 3. For the rest, the plugging device 1 also includes a locking device made up of a male fixing element 7a formed in the plug 4 and by a female fixing element 7b formed in the ring 3, the locking device 7a, 7b arranged to lock the cap 4 in a tilted open position, shown in figures 3 and 4, in which the cap 4 is disengaged from the opening 5 of the container and does not hinder the pouring of the contents of the container.

The plugging device 1 is made by molding with the aid of two half-shells that are joined at the level of a common plane, as well as a mold that is positioned above the half-shells. The half-shells make it possible to mold, in particular, the peripheral skirt 9 and the ring 3, while the mold makes it possible to mold the upper wall 8 of the plugging device 1. The common plane is oriented to pass through the X axis of the plugging device 1 and through the center of the articulation device 6.

The ring 3 is held axially in the neck 2 of the container by means of a hooking collar 18, in particular, represented in figures 1 to 3. The hooking collar 18 has a frustoconical external surface that tapers upwards, that is to say , in the direction of the hole 5 of the container. The hooking collar 18 delimits, downwards, that is to say, in a direction opposite to the hole 5, a projection.

The stopper 4 comprises an upper wall 8 intended to be arranged substantially orthogonally to the X axis, facing the hole 5 of the neck 2 when said stopper 4 is in the closed position. The stopper 4 also includes an external peripheral skirt 9 intended to surround the neck 2 of the container when the stopper 4 is in the closed position. The external peripheral skirt 9 extends, downwards, perpendicular to the upper wall 8, from the external periphery of said upper wall 8.

In the illustrated embodiment and as represented in figures 6 and 7, the external peripheral skirt 9 has, on its internal face, a thread 10 formed by a series of helical ribs and intended to cooperate with a complementary thread 11, visible , specifically, in figures 2 and 3, formed by a series of helical ribs, and provided on the external surface of the neck 2. In this way, the plug 4 is suitable to be screwed on the neck 2 in order to close the container and to be unscrewed from the neck 2 in order to open the container. The stopper 4 is thus mobile between the closed position, shown in figure 1, and a released position, shown in figure 2. In said released position, the stopper 4 is no longer inside the neck 2 of the container . In this way it is suitable for being tilted towards the open tilted position, shown in figures 3 and 4, in which the stopper 4 is released from the hole 5 of the neck 2 so as not to hinder the pouring of the contents of the container.

According to another embodiment not shown, the plug 4 is not screwed onto the neck 2, but rather is snapped onto it. The ring 3 includes a notch configured to locally deflect the ring 3 from the hooking collar 18. The notch is diametrically opposite the articulation device 6. The cap 4 includes a closing element that protrudes axially from the external peripheral skirt 9 and that likewise it is diametrically opposite the hinge device to meet in line with the notch in the closed position. The closure element comprises a projection directed towards the inside of the plug 4 at one end of the closure element and which is intended to cooperate with the hooking collar 18 provided on the neck 2 to position the closure element in the notch and to maintain the plug 4 in the closed position. Indeed, in the passage of the hooking collar 18, the projection generates the elastic deformation of the closing element to return to its initial state after having passed the hooking collar 18 and thus maintains the plug 4 with respect to the neck 2 in the position of closure in the form of a snap-fit connection.

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 X axis and which extend parallel to said X axis. The grooves thus enable Thus a rough surface that facilitates the grip of the stopper 4 by the user or by the assembly device of the bottling line.

The stopper 4 also includes an internal skirt 12, represented in particular in figure 4, which extends perpendicularly downwards from the upper wall 8 of the stopper 4 and is dimensioned to be inserted inside the hole 5 of the neck 2. Cap 4 also includes an annular lip 13, also visible in Figure 4, which extends radially from the upper wall 8 between the internal skirt 12 and the external peripheral skirt 9. The internal skirt 12 and the annular lip 13 are dimensioned in such a way that, when the plug 4 is in the closed position, on the neck 2 of the container, the internal skirt 12 is in contact against the internal face of the neck 2, while the annular lip 13 is in contact against the external face of the neck 2. In this way, the internal skirt 12 and the annular lip 13 make it possible to ensure the tightness of the closure.

In the illustrated embodiment, the ring 3 is connected, before the first opening of the container, to the cap 4 by frangible bridges 14, visible in FIG. 1, intended to break during the first opening of the cap 4. These frangible bridges 14 They thus constitute inviolability witnesses, hence the term inviolability ring 3. More particularly, the frangible bridges 14 are distributed around the X axis and connect the upper edge of the ring 3 and the lower edge of the outer peripheral skirt 9.

According to another embodiment not shown, the ring 3 and the stopper 4 are connected to each other by a tearable strip which is axially interposed between the stopper 4 and the ring 3 and which is connected, on the one hand, to the lower ring 3 by frangible bridges and, on the other hand, connected to plug 4 by other frangible bridges.

The ring 3 is held axially in the neck 2 of the container while being able to rotate with respect to it around the axis X. The ring 3 comprises two parts that are hinged to each other, namely a first sector 15 and a second sector 16 at the level of which the ring 3 is connected to the stopper 4 by means of the articulation device 6. The ring 3 comprises two thin zones 17, that is to say, whose radial thickness is less than the radial thickness of the ring 3 outside said thin zones 17 The two thin zones 17 delimit the first sector 15 and the second sector 16. The thin zones 17 thus form pivots that allow the articulation of the second sector 16 with respect to the first sector 15.

The stopper 4 can thus pass from the closed position illustrated in figure 1 to the released position illustrated in figure 2 by axially moving away from the first sector 15, which generates the inclination of the second sector 16 in an increasingly inclined position with with respect to the first sector 15 as the plug 4 opens to reach an inclined position of the second sector 16 with the plug 4 in the released position. Otherwise, when the stopper 4 passes from the released position to the tilted open position illustrated in figure 3, the second sector 16 returns to its original position aligned with the first sector 15.

The first sector 15 of the ring 3 comprises retaining elements 19 that cooperate with the hooking collar 18 provided on the container in order to axially retain the ring 3 on the neck 2 of the container. The retaining elements 19 are protuberances, visible in figure 6, which protrude radially inwards from the first sector 15 of the ring 3.

The second sector 16 of the ring 3 comprises a clamping element 20 that cooperates with the hooking collar 18 provided on the container in order to keep the ring 3 axially on the neck 2 of the container in the closing position of the cap. As can be seen in figure 7, the clamping element 20 is a protrusion that protrudes radially inwards from the second sector 16 of the ring 3, below the articulation device 6. However, unlike the retention elements 19 , the clamping element 20 is designed in such a way that, from the moment the plug moves from the closed position towards the released position, the clamping element 20 is dislodged from under the hooking collar 18 in order to allow that the second sector 16 pivot with respect to the first sector 15.

The hinge device 6 is configured to allow the plug 4 to pivot between the released position, shown in Figure 2, and the tilted open position, shown in Figures 3 and 4. In the embodiment shown, the hinge device 6 comprises a single deformable sheet 21 that connects the plug 4, and more particularly the external peripheral skirt 9 of the plug 4 to the second sector 16 of the ring 3. The deformable sheet 21 acts as a hinge by elastic deformation of the latter during the pivoting of the plug 4 and is positioned in the center of the second sector 16. Advantageously, the deformable sheet 21 is attached to the outer peripheral skirt 9 in a recessed portion, so that the deformable sheet extends above the lower limit of the outer peripheral skirt. 9.

For the rest, the deformable sheet 21 comprises a predetermined pivot area 22 configured so that the axis of rotation of the plugging device is located in this predetermined pivot area 22. In the embodiment illustrated, in particular, in FIG. 1 , the predetermined pivot area 22 is made with the help of a zigzag portion 23 of the deformable sheet 21 which ensures that the axis of rotation is located in this area. In another embodiment represented in figures 6 and 7, specifically, the deformable sheet 21 that forms the articulation device 6 is formed differently from the embodiment in figure 1. Indeed, in this embodiment, the deformable sheet 21 has been reduced in height and increased in width to make sheet 21 stronger and more rigid than in the previous embodiment. For the rest, the deformable sheet also includes a predetermined pivot area 22 which is here produced with the aid of deformable side edges of the sheet that have a flared portion 24. Indeed, the pivot area 22 is located this way carried out at the level of the section of the deformable sheet 21 that is located at the beginning of the flared portion 24.

For the rest, the narrowing in height of the deformable sheet 21 makes it possible, as can be seen in figure 7, to keep two levels of threads 10 that allow the cap 4 to be better anchored to the neck during uncorking, for example. Finally, in this embodiment, the dimension in the radial direction of the male fixing element 7a has been increased in order to increase the grip of the stopper 4 in the tilted-open position.

In another embodiment not shown, the deformable sheet 21 can have a smaller thickness in the radial direction in the pivot zone 22 compared to outside the pivot zone 22.

As previously described, the locking device is composed of a male fixing element 7a formed in the plug 4 and a female fixing element 7b formed in the ring 3. The male fixing element 7a of the plug 4 and the female fixing 7b of the ring 3 cooperate with each other to maintain the stopper 4 with respect to the ring 3 in the tilted open position illustrated in figure 3 and 4.

As this can be seen more precisely in figure 5, the male fixing element 7a comprises a main portion 71 radially protruding from the outer peripheral skirt 9, a first end of the main portion 71 being connected to the outer peripheral skirt 9, and it also comprises a tab 72 connected to the main portion 71 at a second end of the main portion 71 opposite the first end. The tab 72 and the main portion 71 are inclined with respect to each other in a radial plane passing through the male fixing element 7a so that the male fixing element 7a has the shape of a hook. The male fixing element 7a is thus formed in line with and centered above the articulation device 6. For the rest, the male fixing element 7a is made to form on both sides of said common plane in order to facilitate the plugging device molding 1.

The female fixing element 7b comprises a housing 73 provided in the ring 3 and a heel 74 made on an outer surface of the ring 3. The heel 74 is designed to partially cover the housing 73, protruding axially downwards. Thus, at the level of the housing 73, there is from the inside to the outside of the ring 3 an internal wall of the ring 3, the housing 73, then the heel 74.

During the displacement of the stopper 4 from the released position to the open tilted position, the tab 72 is presented in front of the housing 73 at the level of the bead 74, then it is inserted after elastic deformation of the male fixing element 7a into the passage of the bead 74 in the receptacle 73. The lug 74 thus projects axially upwards when the cap 4 is in the tilted open position and is retained by the heel 74 which thus forms a stop in the receptacle 73. Preferably and for the purpose To facilitate the insertion of the pin 72 in the housing 73, the housing 73 includes a beveled lower part 75

The male fixing element 7a and the female fixing element 7b are made so that their largest dimension is formed parallel to the axis of rotation of the capping device 1. In this way, the cooperation of the male fixing element 7a with the female fixing 7b forms a long press fit in this direction, more efficient for holding plug 4 in the open tilted position.

On the other hand, the housing 73 is limited downwards by a lower surface against which the lug 72 is intended to abut during the movement of the stopper 4 towards its open tilted position, which makes it possible to exert on the ring 3 a force directed towards down and that allows the second sector 16 of the ring 3 to be brought back into the lowered position.

Advantageously, the plugging device assembly is molded in a single piece of synthetic material, such as polyethylene and advantageously high-density polyethylene, for example. Advantageously, the stopper device is molded in the configuration of figure 1, ie in a closed position, in which position it can be mounted directly on the neck 2 of the container.

Although the invention has been described in relation to various particular embodiments, it is more than evident that it is in no way limited thereto and that it includes all the technical equivalents of the described means, as well as their combinations if they fall within the scope of the invention. scope of the invention.

The use of the verb "comprising", "comprising" or "consist of" and its conjugated forms does not exclude the presence of other elements or other stages other than those stated in a claim.

In the claims, any reference signs between parentheses are not to be construed as limiting the claim.

Claims (14)

1. Capping device (1), intended to be fixed to the neck (2) of a container in order to plug an orifice (5) in said neck (2), said neck (2) comprising a hooking collar ( 18), comprising the capping device (1): - a stopper (4) comprising an upper wall (8) and an external peripheral skirt (9), the stopper (4) being suitable to be arranged in a closed position in which the upper wall (8) closes the hole (5) of the neck (2) and the peripheral skirt (9) surrounds said neck (2); - a ring (3) located under the plug (4) in the closed position and comprising a first sector (15) intended to be retained axially in the hooking collar (18) of the neck (2) and a second sector ( 16), the first sector (15) and the second sector (16) of the ring (3) being mutually articulated so that the second sector (16) pivots with respect to the first sector (15) from a lowered position towards a position raised to allow the plug (4) to move axially away from the neck (2) from the closed position to a released position in which said plug (4) is no longer inside the neck (2) of the container; Y - an articulation device (6) that connects the plug (4) to the second sector (16) of the ring (3), the articulation device (6) being configured to allow the plug (4) to pivot along an axis of rotation between said released position and a tilted open position in which the plug (4) is released from the hole (5) of the neck (2); in which the plug (4) comprises a male fixing element (7a) formed in the external peripheral skirt (9) and which protrudes radially towards the outside of the plug (4), and the second sector (16) of the ring (3 ) comprises a female fixing element (7b), the male fixing element (7a) of the plug (4) and the female fixing element (7b) of the ring (3) being configured to cooperate with each other to maintain the plug (4 ) with respect to the ring (3) in the tilted open position, characterized in that the male fixing element (7a) comprises a lug (72) that protrudes axially upwards when the cap (4) is in the tilted-open position, and the female fixing element (7b) comprises a housing (73) provided with on the ring (3) and a bead (74) made on an outer surface of the ring (3), which partially covers the housing (73) and which protrudes axially downwards, the tab (72) being configured to be inserted and retained in the housing (73) after elastic deformation of the male fixing element (7a) at the passage of the heel (74), the heel (74) thus forming a stop for the tab (72) in the tilted-open position, and because the housing (73) is limited downwards by a lower surface (75) against which the lug (72) is configured to abut during the movement of the plug (4) towards the tilted open position in order to exert on the ring (3) a force directed downwards which makes it possible to return the second sector (16) of the ring (3) to the lowered position. Capping device (1) according to claim 1, in which the lug (72) and the heel (74) extend parallel to the axis of rotation. Plugging device (1) according to claim 1 or claim 2, wherein the male fixing element (7a) comprises a main portion (71) connecting the tab (72) to the outer peripheral skirt (9) of the stopper (4), the tab (72) and the main portion (71) being inclined with respect to each other to form a hook. Plugging device (1) according to one of Claims 1 to 3, in which the plugging device (1) is produced by molding with the aid of two half-shells that are joined at the level of a radial connection plane, the male fixing element (7a) of the cap (4) and the female fixing element (7b) of the ring (3) being each made on both sides of said common plane. Capping device (1) according to claim 4, in which the common plane is oriented to pass through a central axis X of the capping device (1) and through the center of the articulation device (6). Stopper device (1) according to one of Claims 1 to 5, in which the male fixing element (7a) of the stopper (4) is formed in line with and centered above the hinge device (6). Plugging device (1) according to one of Claims 1 to 6, in which the female fixing element (7b) of the ring (3) is formed in line with and centered below the articulation device (6). Capping device according to one of claims 1 to 7, in which the articulation device (6) comprises a deformable sheet (21) connecting the outer peripheral skirt (9) and the second sector (16) of the ring ( 3). Capping device (1) according to claim 8, in which the deformable sheet (21) comprises a predetermined pivot area (22) configured so that the axis of rotation of the capping device (1) is located in this area default pivot point (22). Capping device (1) according to claim 9, in which the predetermined pivot zone (22) is realized with the aid of a zigzag portion (23) of the deformable sheet (21). Capping device (1) according to one of Claims 1 to 10, in which the ring (3) is intended to be mounted so as to be movable in rotation on the neck (2) about a central axis X of the capping device. stopper (1) and in which the external peripheral skirt (9) of the stopper (4) has a helical thread (10) intended to cooperate with a helical thread (11) provided in the neck (2) of the container to allow screwing or an unscrewing of the plug (4) in the neck (2) around the central axis X. Plugging device (1) according to one of claims 1 to 10, in which the ring (3) comprises a notch configured to locally deflect the ring (3) from the hooking collar (18), the notch being diametrically opposite to the articulation device (6), and the stopper (4) comprises a closure element that protrudes axially from the external peripheral skirt (9) and that is diametrically opposite the articulation device (6), the closure element being intended for Cooperate with the hooking collar (18) provided on the neck (2) to place the closing element in the notch and to keep the cap (4) in the closing position. Capping device (1) according to one of claims 1 to 12, in which the lower ring (3) is connected to the outer peripheral skirt (9) by frangible bridges (14). Assembly comprising a container equipped with a neck (2) comprising a hooking collar (18) and an orifice (5), and equipped with a plugging device (1) according to any one of claims 1 to 13, the first sector (15) of the ring (3) of the plugging device (1) being axially retained in the hooking collar (18) of the neck (2).