FR3035376A1 - DEVICE FOR MAINTAINING AND REMOVING A CAP ENGAGED IN A BOTTLE COLLAR. - Google Patents

Abstract

Device for holding and removing a plug (2) engaged in a neck (11) of a bottle (1), the neck (11) comprising an external thread (13) and an external shoulder (14), the plug (2) comprising an outer portion (22) projecting from the neck (11), the device being characterized in that it comprises: - a ring (3) engaged around the neck (11) and comprising a ring (31) ) bearing on the outer shoulder (14) of the neck (11) and hooking means (33) engaging with the outer portion (22) of the plug (2), - a cover (4) for capping the cap (2) and comprising an inner wall (41) which forms an internal thread (42) adapted to threadingly engage the external thread (13) of the neck (11) and an internal shoulder (45) which is accommodating below the ring (31) of the crown (3) when the cover (4) is screwed onto the neck (11), so that the unscrewing of the cover (4) has the effect of pushing the crown (3). ) up, pushing nsi the plug (2) upwards.

Description

The present invention relates to a device for holding and removing a plug engaged in a neck of a bottle. The preferred field of application of the present invention is that of bottles containing a gaseous liquid, such as, for example, sparkling wines, beers, sodas, etc. However, the present invention can also be applied to other containers, flasks, drums, flasks filled with a gaseous liquid or not. In the prior art, the muselet has already been known for a very long time, which makes it possible to hold plugs of sparkling wine bottles, such as champagne, crémant, etc., in place. The muselet is a kind of wire cage to which is associated a capsule that caps the cap. The muzzle includes a wire belt that is tightened around the neck of the bottle. The muzzle also includes three or four legs of wire which are assembled at their top to allow the maintenance of the cap on the cap. The first muselets of this type have been made since the end of the 19th century. The function of the cap is to hold the cap in place in the neck of the bottle, since the cap is pushed or stressed by the liquid under pressure. It can thus be described as a device for holding a cap engaged in a neck of a bottle.

However, the cap does not participate in the removal of the cap. Indeed, the muzzle must first be loosened by releasing his belt to then be able to remove the cap manually by grasping its outer part with one hand. A rotational movement or tilting of the cap allows to release it from its initial position: the pressure of the liquid then helping to remove it completely from the neck. Sparkling wine corks, unlike traditional wine corks, include an outer portion that protrudes out of the neck, and is therefore manually grippable to remove it from the neck. It may be noted that the outer portion of the plug has a diameter which is generally greater than that of the lower portion of the plug which is engaged inside the neck. This is explained by the fact that the lower part is strongly compressed to allow its insertion into the neck and ensure its sealing function. As a result, the outer portion of the plug not only protrudes out of the neck, but also overhangs the upper edge of the neck. It is not uncommon for the outer portion of the plug to have substantially the same diameter as the neck at its upper edge.

Although removal of the plug is often facilitated by the pressure of the gaseous liquid stored in the bottle, it sometimes happens that there are some difficulties in dislodging the plug from its initial position. It is true that the hard point during the extraction of such a plug is at the moment when it must be released from its initial position, since the internal part of the plug has been anchored for some time inside the neck. . Once this initial hard point passed, the extraction of the cap is normally without much difficulty. The invention aims to overcome the aforementioned drawback related to the initial release of the plug, so as to extract it easily. Another object of the present invention is to use the plug holding device to assist its removal or extraction. To do this, the present invention provides a device for holding and removing a plug engaged in a neck of a bottle having an axial direction, the neck comprising an external thread and an external shoulder axially disposed above the external thread. and at a distance from an upper edge of the neck, the stopper comprising an external part which projects out of the neck, the holding and withdrawal device being characterized in that it comprises: a ring engaged around the neck and comprising a ring intended to bear on the external shoulder of the neck and hooking means 25 intended to engage with the external part of the plug, - a cover intended to cap the cap and comprising an inner wall which forms a thread internal adapted to come in threaded engagement with the external thread of the neck and an internal shoulder which is housed below the ring of the crown when the cap is screwed on the neck, 3 0 so that the unscrewing of the cover has the effect of pushing the crown upwards by pressing the inner shoulder under the ring, so that the attachment means push the cap upwards, disengaging 3035376 3 and the neck . Preferably, the attachment means are incrusted in the plug. It is not necessary that the unscrewing of the hood causes a complete withdrawal of the plug, but merely allows the plug to detach from its initial position, which constitutes the hard point of its removal. Actually, an axial stroke of the hood a few millimeters upwards is enough to pull the cap from its initial position. Then, just pull on the hood axially to complete the removal of the cap and neck. In this case, the device of the invention mainly serves a function of assisting the displacement of the plug from its initial position. Of course, it is possible in the context of the invention to provide a thread that allows a total extraction of the plug by rotation of the cover. On the other hand, it should be borne in mind that the present invention does not apply exclusively to conventional sparkling wine corks, but can be applied to any stopper, which protrudes collar with an external part. With the present invention, the cap, which can be broadly likened to a conventional prior art cup, allows the plug to be held in place, against the pressure of the liquid stored inside the bottle. The screwing of the cowl on the collar has, of course, the primary function of keeping the cap in place. According to the invention, the screwing of the cowl on the neck has an additional function, namely that of arranging the inner shoulder of the cowl underneath the ring of the ring which rests on the external shoulder of the neck. In other words, the inner shoulder of the hood snaps under the ring, so that the crown is then trapped in the hood. It is then easily understood that the unscrewing of the cap, with the captive crown, has the effect of moving the crown upwards by driving with it the plug which is gripped by the attachment means.

According to an advantageous feature of the present invention, the ring may comprise a lower outer edge projecting radially outwardly relative to the outer shoulder of the neck, so that the inner shoulder of the cap passes below the lower outer edge, when the hood is screwed on the neck. Of course, the passage of the inner shoulder under the outer edge is possible only by a deformation of the ring and / or hood. Preferably, the deformation 5 necessary for this interlocking comes from the ring, and therefore from the crown. Since the snapping of the internal shoulder under the outer edge is done by screwing the cover on the neck, it does not cause difficulty or particular resistance. According to an advantageous practical embodiment, the attachment means 10 comprise tabs which extend upwards from the ring to penetrate into the external part of the plug, the tabs advantageously being provided with suitable hooking attachment profiles. to bite into the outer part of the cap. Depending on the configuration of the neck, the plug and the tabs, the hooking of the tabs on the plug will be more or less axial or radial. When the legs are pressed against the cap from the outside, the attachment is mainly radial. On the other hand, when the tabs engage under the outer part which overhangs the upper edge, the attachment is mainly axial. According to an advantageous embodiment, the hooking means 20 extend up to the level of the upper edge of the neck and come into pressed contact against the outer part of the plug during the unscrewing of the cover. With such a configuration of attachment means, it is possible to set up the crown on the neck before engaging the plug in the neck. In this case, the attachment means are not engaged with the outer portion of the cap when the cap is screwed down. The pressed contact only occurs when the cover is unscrewed from the neck, so as to drive with it the crown, the attachment means will then come into axial contact against the outer portion of the plug.

According to another advantageous embodiment of the invention, the hooking means extend beyond the upper edge of the neck and come radially in pressed contact against the outer part of the cap 3035376 5 during screwing of the cover. We can say that the outer part of the plug is taken in a claw that radially surrounds it. Preferably, the inner wall of the cover forms a cam surface which urges the hooking means radially inwardly against the outer portion of the plug.

According to another advantageous aspect of the invention, the ring may be deformable radially, thus enabling it to be placed around the neck while the plug is already engaged in the neck, the ring expanding temporarily during the passage around the part. external plug. This embodiment is particularly advantageous when the outer portion 10 of the cap overhangs the upper edge of the neck. The deformation of the ring may for example be achieved by splitting it at a location or by performing one or more bleeding (s) to reduce its wall thickness and thus increase its radial elasticity. According to another advantageous characteristic of the invention, the device comprises anti-unscrewing means to prevent autorotation of the hood, in particular under the effect of the thrust of the cap. According to a practical embodiment, the anti-unscrewing means comprising a tongue connected to the ring, the tongue comprising a notch which cooperates with a tooth of the hood to block it in autorotation, the tongue extending advantageously in a saving vertical axis which interrupts the external thread and the outer shoulder of the neck. The mutual commitment of the notch and the tooth does not achieve definitive blocking, but only allows to keep the cover in place on the neck when the cover is urged to rotate, for example under the effect of vibration or thrust. of the cap. When the user will want to unclog the bottle, he will exert a couple on the hood, and it is at that moment that he will perceive a resistance that he will have to overcome to disengage the notch of the tooth. This disengagement can advantageously cause the rupture of the tongue at a rupture zone.

According to another feature of the invention which can be integrated with the previous one, the device comprises first-use security means visually indicating to a user that the hood has never yet been unscrewed from the neck. The tongue can be manually grasped and torn off by detaching it at its rupture zone, or preferably, it is the first unscrewing of the cover which causes the separation of the tongue at its rupture zone.

It should be noted that the functions of anti-unscrewing and first-use security can be implemented cumulatively in a tongue comprising both a rupture zone and a notch. The present invention also defines a container comprising a bottle, in particular sparkling wine, forming a neck in which a cap is engaged, the collar comprising an external thread and an external shoulder disposed axially above the external thread and at a distance from an upper edge of the neck, the cap comprising an outer portion which projects out of the neck, the container being further provided with a holding and withdrawal device as defined above.

The invention lies in the fact of using a screwable / screwable cap to grip a ring disposed inside the cover and which is or is engaged with the cap, so that the unscrewing of the cover has the effect of move the cap through the crown. The crown can even participate in the radial grip of the crown around the cap. The crown can be placed on the neck before or after engagement of the plug in the neck. The term "threading" should be understood in the broadest sense, and also encompasses any helical inclined profile, especially in the form of a cam, a ramp, a slope, a bayonet, etc. The invention will now be described in more detail with reference to the accompanying drawings, giving by way of non-limiting examples, several embodiments of the invention. In the figures: Fig. 1a is an exploded perspective view of a bottle ready to be plugged and equipped with a device according to a first embodiment of the invention, Fig. 1b is a view similar to that FIG. 1a with the plug engaged in the neck and the crown engaged around the neck and the plug, and with the cover ready to be fitted. FIGS. 2, 3 and 4 are enlarged perspective views of the hood, FIG. 5a is a vertical cross-sectional view through a bottle neck provided with a cap and equipped with a device according to the first embodiment of the invention, FIG. FIG. 5b is a horizontal sectional view along the sectional line of FIG. 5a; FIGS. 6a and 6b are views similar to FIGS. 1a and 1b for a device according to a second embodiment of the invention, FIG. 7 is an enlarged perspective view of the crown of the second embodiment of the invention, Figs. 8a and 8b are views similar to Figs. 5a and 5b for the second embodiment of the invention, and Figs. 9a and 9b are perspective views. enlarged crowns made according to two other embodiments of the invention. First, reference will be made to FIGS. 5a to 5b to describe in detail the structure and operation of a holding and withdrawal device according to a first embodiment of the invention. This device comprises two constituent elements, namely a ring 3 and a cap 4. These two elements are intended to be mounted on a bottle 1 equipped with a cap 2. The function of the device of the invention is to maintain the cap 2 in place on the bottle 1 and allow the withdrawal or extraction of the cap 2 of the bottle 1. The bottle 1 is shown only very partially in the figures, since we only see the neck or neck 11 which forms its upper part. In the context of the present invention, this bottle 1 can contain any type of liquid, and more particularly gaseous liquids, such as a sparkling wine, a beer, a soda, etc. A preferred application of the present invention is that of a champagne bottle or a creamer. The term "bottle" means any container capable of containing a liquid, and may also be referred to as the bottle, vial, tank, can, jerricane, etc. According to the invention, the neck 11 of the bottle 1 comprises an annular reinforcement 12 which protrudes radially outwards. An external thread 13 is formed at this reinforcement 12. The threading may be in the form of several discontinuous thread sections, or in the form of a continuous thread. At its summit, the reinforcement 12 forms an external shoulder 14 facing upwards. Advantageously, the reinforcement 12 is interrupted locally by a saving 15 which extends vertically, for example through the external thread 13 as well as the outer shoulder 14. It can even provide several savings 15 distributed around the neck 11. The neck 11 also forms an upper annular edge 16, which is disposed at a distance from the outer shoulder 14. It can also be seen in the figures that the upper edge 16 also forms an external rim which is situated away from the shoulder 14. It can be said that the neck 11 has an axial symmetry, except at the thread 13 and the savings 15. With respect to this axial direction, it can be said that the outer shoulder 14 is located above the thread 13 and below the upper annular edge 16. It can also be said that the sparing 15 extends axially by interrupting the reinforcement 12, the thread 13 and the outer shoulder 14. Of course, the upper edge 16 defines it the entry of an opening which gives access to the inside of the bottle 1 through the neck 11. The cap 2 is advantageously made of a compressible material, malleable or soft, such as cork, an elastomer, etc. . Harder or stiffer material is not excluded, however. In the figures, the cap 2 is unrealistically represented, since it has its final form engaged inside the neck. In the initial state, the plug 2 has a generally cylindrical shape over its entire height, except at its upper end where a chamfer can be made. The cap 2 comprises a lower inner portion 21 intended to be engaged inside the neck 11, and an upper outer portion 22 which has not been deformed, unlike the lower portion 21. The outer portion 22 forms, near its junction with the inner portion 21 a transition zone 23 which extends overhanging the upper edge 16, when the plug 2 is in place in the neck. The upper surface 24 of the outer portion 22 is preferably planar. The plug 2 in place in the neck 11 is visible in section in Figure 5a. The ring 3 is preferably made by plastic injection / molding. The ring 3 comprises a ring 31, which advantageously has a slightly frustoconical shape, that is to say flared downwards. In Figure 3, it can be seen more clearly that the ring 31 defines a lower outer edge 31a which has a maximum diameter. The ring 31 is interrupted at a slot 32, which gives a certain elasticity to the ring 31. In other words, the ring 31 is expandable by widening the slot 32. The ring 31 serves as a basis for a A series of tabs 33 extending upwardly from the ring. Advantageously, the free ends of the tabs 33 are provided with external snap-fastening profiles 34. The tabs 33 are thus separated from one another by notches whose bottom stops at the level of the ring 31, except at the level of the slot 32 which separates two adjacent tabs 33. It is obvious that the tabs 3 have a certain elasticity or capacity for radial deformation. As will be seen below, the tabs 33 form hooking means capable of coming into engagement with the stopper 2, and more particularly with the outer portion 22 of the stopper. The ring 3 also comprises a tongue 35 which extends axially downwards from the lower edge of the ring 31. This tongue 35 is however optional. Near its junction with the ring 31, the tongue forms a rupture zone 37, for example in the form of a small groove which locally reduces the wall thickness of the tongue, so as to weaken it at this point . The tongue 35 also forms a notch 36 whose height increases in a clockwise direction. This notch 36 is located on the outer face of the tongue 35. It should be noted that the tongue 36 can be implemented without the rupture zone 37, and that the rupture zone 37 can be implemented without the notch. 36. Without departing from the scope of the invention, one can also provide several tongues 35 distributed around the ring 31. The cover 4 can be made by injection / molding of any opaque plastic material or transparent. Its external appearance is here cylindrical, but other forms are of course conceivable. The outer wall of the cover 4 does not perform any particular function, except that it must be able to be grasped in order to be rotated. The cover 4 comprises an inner wall 41 having several functional profiles. More particularly, the inner wall 41 forms an internal thread 42 intended to cooperate with the external thread 13 of the neck 11. This internal thread 42 may be in the form of thread segments, as is clearly visible in FIG. 2. The inner wall 41 also forms an upwardly facing inner shoulder 45 which is disposed above the internal thread 42. It may also be noted that the inner wall 41 forms a tooth 43 below the thread 42. This tooth 43 is intended to cooperate with the notch 36 of the tongue 35, as will be seen below. The inner wall 41 also forms a frustoconical cam surface 44 which extends above the inner shoulder 45. At the top of this cam surface 44, the inner wall 41 forms a snap-in flange 46. The hood 4 also defines an inner upper wall 47 intended to come into pressed contact with the upper surface 24 of the plug 2, as can be seen in FIG. 5a. The various constituent elements being now described, we will see how they are assembled so as to cooperate with each other. Referring again to Figure 1a, we see the various elements in the assembly order, namely that the plug 2 is first put in place in the neck 11. Then, the ring 33 is put in place. place on the neck 11 passing over the outer portion 22 of the cap 30 2, which is possible due to the deformability or expansion of the slot 32 by extension. We then find ourselves in the configuration shown in FIG. 1 b. The ring 31 is supported on the outer shoulder 14 of the neck 11 with the tongue 35 which extends through the axial saving 15. The tabs 33 extend around the outer portion 22 of the plug 2, and more particularly around the transition section 23. It may be noted that the lower outer edge 31a of the ring 31 projects outwardly with respect to the shoulder 14 and the annular reinforcement 12. In other words, the diameter of the ring 31 at its lower edge 31a is greater than the diameter of the neck 11 at its annular reinforcement 12. The cover 4 is then ready to be mounted on the neck 11, the ring 3 and the cap 2. The cover 4 is first engaged around the plug 2 and the ring 3 until it comes into contact with the external thread 13. Next, the cover 4 is rotated to engage its internal thread 42 with the external thread 13 of the 11. When the cover 4 is screwed fully on the neck 11, it s e found in the configuration shown in Figure 5a. It may be noted that the inner shoulder 45 of the cover 4 has been housed under the ring 31, and more particularly under its lower edge 31a. It can thus be said that the inner shoulder 45 has snapped under the ring 31. This snap is made possible because the ring 31 can easily be deformed, especially because of the presence of the slot 32. Of course, it is necessary for the inner diameter at the inner shoulder 45 to be smaller than the outer diameter of the ring 31 at its lower edge 31a. It can also be seen in FIG. 5a that the inner wall 41 has strongly urged the tabs 33 against the outer portion 22 of the plug 2. Thus, the free ends of the tabs 33 are literally embedded in the plug 2. The solicitation of the tabs 33 radially inwards against the stopper 2 is the result of the action of the frustoconical cam surface 44. It should also be noted that the ratchet flange 46 has been housed under the profiles 34 of the tabs 33. It is possible to note also that the inner upper surface 47 is in contact pressed against the upper surface 24 of the plug 2. At the neck 11, it can be seen that the tongue 35 protrudes axially below the cover 4, so as to be clearly visible by a user.

In the configuration of FIG. 5a, the ring 3 which rests on the outer shoulder 14 of the neck 1 is now trapped in the cover 4 because of the engagement of the internal shoulder 45 under the ring 31 and the The crown 3, pushed by the cam surface 44 is secured to the plug 2. On the other hand, the ring 3 is locked in rotation relative to the neck, because of the engagement. of tongue 35 in the axial saving 15. It should be noted for this purpose that the cover 4 is also locked in rotation by the engagement of its tooth 43 behind the notch 36 of the tongue 35, as shown in section on Figure 5b. This means that at the end of screwing the cover 4 on the neck 11, the tooth 43 has just housed behind the notch 36. This prevents any autorotation of the hood, for example under the effect of the thrust of the cap 2. Thus , the mutual engagement of the notch 36 with the tooth 43 forms anti-evasion means by autorotation of the cover 4.

When a user wants to unclog the bottle, he grasps the cover 4 with one hand and rotates it anti-clockwise. At first, it will meet a resistance that comes from the abutment of the tooth 43 against the notch 36. To overcome this resistance, it will exert an upper torque on the cover 4, which will have the effect either of 20 damage the tooth 43 and / or the notch 36, or break the tongue 35 at the breaking zone 37, when equipped. Therefore, the presence of the tab, visible below the cover 4, gives a valuable indication to the user that the cover 4 has never been unscrewed. As a result, the tongue 35 also fulfills a function of first user safety means. Since the user has overcome the resistance generated by the engagement of the tooth 43 with the notch 36, he can more easily continue to unscrew the cover 4, which then moves axially upwards, driving with it the crown 3 which is supported on the internal shoulder 45. The crown 3 is thus moved upwards, and because of its attachment with the cap 2, the latter is also moved upwards, thus disengaging the neck 11. The clipping of the tabs 33 at the flange 46 further promotes and increases the transmission of the thrust between the hood 4 and the plug 2. When the hood 4 reaches the end of its unscrewing, the plug 2 is sufficiently disengaged from the neck 11 so that the user can completely remove it by exerting a purely axial traction or a rotation on the hood 4. Thus, the cap 4 with its captive crown 3 makes it possible to easily remove a cap 2 from a neck 11 by using l a rotation of the cover 4 to generate the initial displacement of the plug 2 inside the neck 11. It should be noted that the ratchet flange 46 is optional as well as the profiles 34. It is the same for the tongue 35 which is also optional. On the other hand, it is also possible to provide no slot 32 at the ring 31, but in this case it is necessary that the ring has sufficient elasticity and deformability to pass beyond the outer portion 22 of the cap 2 and come to bear on the outer shoulder 14. An introduction of the crown before the insertion of the plug in the neck is also possible. Reference will now be made to FIGS. 6a to 8b to explain a second embodiment for a plug holding and removing device of the invention. In this second embodiment, the bottle 1 and the cap 2 may be similar or even perfectly identical to those of the first embodiment. Even the cover 4 may be identical to that of the first embodiment. On the other hand, the crown 3 'is different. It certainly comprises a ring 31 ', advantageously of frustoconical shape flared downwards, thus defining an outer lower edge 31a of maximum diameter. The ring 31 'is thus continuous over its entire periphery, and does not include any slots, as is the case in the first embodiment. The ring 3 'also comprises tabs 33' which extend upwards from the ring 31 ', and are separated by notches whose bottom is formed by the ring 31'. The ring 33 'also comprises a tongue 35 forming a notch 36, 30 but no break zone, as is the case in the first embodiment. It may be noted that the height of the tabs 33 'is much lower than that of the tabs 33 of the first embodiment.

Referring to FIG. 6a, it can be seen that the crown 3 'is mounted on the neck 1 before the plug 2 is engaged in the neck 11. As a result, when the plug 2 is in place in the neck 2, the tabs 33 'are disposed under the outer portion 22 of the plug 2. It could be provided that the introduction of the plug 2 allows to anchor the free ends of tabs 33' in the outer portion 22 of the plug. However, for technical reasons related to the closure procedure, it is preferable that the free ends of the tabs 33 stop at the upper edge of the neck 11, as can be seen very clearly in Figure 8a. Thus, the tabs 33 'may come into contact with the outer portion 22, but not in a supported manner. The tab 35 also extends through the savings 15. The screwing of the cover 4 on the neck 11 also has the effect of passing the inner shoulder 45 under the outer edge 31a of the ring 31 '. It may be noted that the inner wall 41 of the cover 4 does not fulfill any additional camming or hooking function here. Since the tabs 33 'are short and the ring 31' is not split, the thrust exerted by the cover 4 can be transmitted to the cap 2 without substantial deformation of the ring 3 '. Indeed, the unscrewing of the cover 4 has the effect of driving the ring 3 'whose free end of the tabs 33' will come into axial contact 20 supported under the outer portion 22 of the plug 2. It can even be said that the legs 33 'will penetrate axially into the constituent material of the plug 2. Since the ring 3' does not need to be deformed for its implementation, it can be made substantially rigidly, while allowing a minor deformation in order to accommodate its outer edge 31a above the inner shoulder 45 of the cover 4. Since the tongue 35 has no break zone, it is intended to remain in place, and thus the The user must overcome the initial resistance by deforming the tooth 43 and / or the notch 36. This second embodiment has the advantage that the crown 3 'can be put in place before the closing operation, so that may have considerable rigidity e, for transmitting more effectively the thrust exerted during the unscrewing of the cover 4 to the stopper 2.

Figures 9a and 9b show two other embodiments for the crown. In Figure 9a, the ring 3 "is a variant of the ring 3 ', in that the legs 33" are short. However, this ring 3 "differs from the ring 3 'in that the ring 31" is interrupted by a slot 32 and that the tabs 33 "are provided at their upper ends with a sharp tooth 33a intended to penetrate deeply into 2. In Figure 9b, the crown 3 is a variant of the crown 3 of the first embodiment, in that the legs 33 are high.

However, they differ from the first ring, in that the ring 31 "is not split, but provided with vertical grooves 32 'between the tabs 33- so as to create a reduction in wall thickness giving a radial elasticity. Thus, this ring 3- can be put in place by passing over the outer portion 22 of the cap 2. On the other hand, in order to improve the attachment of the tabs with the cap, the inner wall of the legs is provided with projecting ribs 33b intended to penetrate radially into the plug 2. The four embodiments described above have particular specific characteristics, but it is quite possible within the scope of the invention to combine these characteristics. For example, the crown 3 'may be provided with a slot 32 or with grooves 32' The crown 3 or 3 'may be free of tongue 35. The crown 3 may be provided with projecting ribs 33b. 1 On the other hand, the external thread and the outer shoulder are formed by the neck 11: it can however be imagined that these two characteristics are formed by a ring or a sleeve engaged around the neck 11. The tongue 35 protrudes down below the cover 4: it is quite possible that the tongue 35 stops at the bottom of the cover 4 or inside. Instead of the tabs, it is quite possible to provide other attachment means, for example in the form of a continuous deformable sleeve full or perforated. The attachment means could be made of a flexible material with a high coefficient of friction. At the level of the outer portion 22 of the cap, one can envisage one or more attachment reliefs intended to cooperate with the attachment means to improve the holding. One can also imagine that the outer portion 22 of the cap extend substantially in the extension of the lower portion 21 engaged in the neck. In this case, it is quite possible to provide a specific ring whose legs extend in an inclined or frustoconical manner of the shoulder 14 until contact with the external part of the plug. Thanks to the invention, there is a holding device, but especially a withdrawal device, which makes it possible to move a plug axially over a relatively short distance from its initial position of closure, but which is sufficient to be able to then extract easily. Therefore, the present invention will naturally find a preferred application in all areas where a plug has some difficulty in being torn from its initial position capping.

Claims (12)

CLAIMS1.- Device for holding and removing a plug (2) engaged in a neck (11) of a bottle (1) having an axial direction, the neck (11) comprising an external thread (13) and a shoulder outer member (14) disposed axially above the outer thread (13) and spaced from an upper edge (16) of the neck (11), the plug (2) comprising an outer portion (22) projecting from the neck (11), the holding and withdrawal device being characterized in that it comprises: - a ring (3; 3 '; 3 ", 3-) engaged around the neck (11) and comprising a ring (31; 31 ", 31") intended to bear on the outer shoulder (14) of the neck (11) and the hooking means (33; 33 '; 33 "; 33-) intended to engage with the outer portion (22) of the plug (2), - a cover (4) for capping the plug (2) and comprising an inner wall (41) which forms an internal thread (42) adapted to threadingly engage the external thread (13) of the neck (11) and an inner shoulder (45) which is housed below the ring (31; 31 '; 31 "; 31") of the crown (3; 3 '; 3 ", 3-) when the cover (4) is screwed onto the neck (11), so that the unscrewing of the cover (4) has the effect of push the crown (3; 3 '; 3 ", 3-) upwards by pressing the internal shoulder (45) under the ring (31; 31'; 31", 31 "), so that the means (33; 33 '; 33 "; 33-) push the plug (2) upwards, disengaging it from the neck (11). 2. A device according to claim 1, wherein the ring (31; 31 '; 31 ", 31") comprises a lower outer edge (31a) projecting radially outwardly relative to the outer shoulder (14). ) of the neck (11), so that the inner shoulder (45) of the cover (4) passes below the lower outer edge (31a), when the cover (4) is screwed on the neck (11). . 3035376 18 3.- Device according to claim 1 or 2, wherein the attachment means comprise tabs (33; 33 '; 33 "; 33-) which extend upwardly from the ring (31; 31'). 31 ", 31") to penetrate into the outer portion (22) of the plug (2), the tabs (33; 33 '; 33 "; 33-) being advantageously provided with projecting hooking profiles (33a, 33b). ) able to bite into the outer part (22) of the plug (2). 10 4.- Device according to any one of the preceding claims, wherein the attachment means (33 ', 33 ") extend to the level of the upper edge (16) of the neck (11) and come into contact axially pressed against the outer part (22) of the cap (2) when the cover (4) is unscrewed. 5.- Device according to any one of claims 1 to 3, wherein the attachment means (33; 33-) extend beyond the upper edge (16) of the neck (11) and come into contact radially. pressed against the outer part (22) of the cap (2) during screwing of the cover (4). 6.- Device according to claim 5, wherein the inner wall (41) of the cover (4) forms a cam surface (44) which urges the attachment means (33; 33-) radially inwards against the Outer portion (22) of the plug (2). 7. A device according to any one of the preceding claims, wherein the ring (31; 31 "; 31") is radially deformable, thus allowing it to be placed around the neck (11) while the plug (2) is already engaged in the neck (11), the ring (31; 31 "; 31") expanding temporarily during the passage around the outer portion (22) of the plug (2). 3035376 19 8.- Device according to any one of the preceding claims, comprising anti-unscrewing means (36) for preventing autorotation of the cover (4), in particular under the effect of the thrust of the plug (2). 9.- Device according to claim 8, wherein the anti-unscrewing means comprising a tongue (35) connected to the ring (31; 31 '; 31 "; 31"), the tongue (35) comprising a notch ( 36) which cooperates with a tooth (43) of the cover (4) to lock it in autorotation, the tongue (35) advantageously extending in a vertical axial saving (15) which interrupts the external threading (13) and the outer shoulder (14) of the neck (11). 15 10.- Device according to any one of the preceding claims, comprising first-use security means (35) visually indicating to a user that the cover (4) has never been unscrewed from the neck (11). 20 Apparatus according to claim 10, wherein the first-use security means (35) comprises a tab (35) connected to the ring (31; 31 '; 31 "; 31") and projecting below the cover (4), the tongue (35) comprising a rupture zone (37) capable of being broken, the tongue (35) advantageously extending in a vertical axial saving (15) which interrupts the external thread (13) and the outer shoulder (14) of the neck (11). 12.- Container comprising a bottle (1), in particular sparkling wine, forming a neck (11) in which a stopper (2) is engaged, the COI (11) comprising an external thread (13) and an external shoulder ( 14) disposed axially above the outer thread (13) and at a distance from an upper edge (16) of the neck (11), the plug (2) comprising an outer portion (22) projecting from the neck (11), the container (1) being further provided with a holding and withdrawal device according to any one of the preceding claims.