CN115335298A

CN115335298A - Closure device intended to be fixed on the neck of a container and assembly comprising a container and said closure device

Info

Publication number: CN115335298A
Application number: CN202180022073.9A
Authority: CN
Inventors: 弗朗西斯科·哈维尔·贝罗亚加西亚
Original assignee: Betapack SA
Current assignee: Betapack SA
Priority date: 2020-01-24
Filing date: 2021-01-25
Publication date: 2022-11-11
Also published as: EP4095064A1; JP2023516267A; EP4095064B1; FR3106582A1; BR112022014596A2; UY39033A; WO2021148707A1; PT4095064T

Abstract

The invention relates to a closure intended to be fastened to a neck (2) of a container having an opening (3), comprising: -a cap (1) having a helical thread (7) intended to cooperate with a helical thread (6) formed on the neck (2); -a lower ring (9) axially fastened to the neck (2); and-a hinge means connecting the cover (1) to the lower ring (9). Additionally, the closure device comprises a cap locking device configured to lock the cap (1) in the open inclined position, said locking device comprising a flange (22) formed between two sheets (11, 12) and configured to rest against the neck (2) of the container when the cap (1) is in the open inclined position, said flange (22) having an inner face on which at least one of the ribs of the series of ribs of the helical thread (7) is formed.

Description

Closure device intended to be fixed on the neck of a container and assembly comprising a container and said closure device

Technical Field

The present invention relates to an assembly comprising a container and a closure device equipped with a stop and enabling the stop to remain fixed to the neck of the container, thus preventing the stop from being lost altogether.

Background

Document ES1232089U discloses a closure device comprising a lower ring intended to be axially fixed to the neck of a container, a cap comprising a thread intended to be attached with an additional thread formed in the gland of the container, and a coupling portion coupling the cap to the lower ring. The lower ring comprises attachment means intended to retain the lower ring with the gland of the container. The section of the lower ring diameter where the attachment means are present extends from 25% to 75% of the lower ring diameter. The section of the lower ring connected to the stop by the hinge has no attachment means, which allows the section to be rotated between the lowered position and the raised position, in particular allows the stop to be unscrewed. Furthermore, the lid comprises ratchet means intended to cooperate with complementary ratchet means formed in the lower ring and thus allow the lid to be kept in the open tilted position.

This capping device is not entirely satisfactory. In particular, the closure device can present an insufficient resistance to pressure, so that the lid is prone to be opened unintentionally due to too much pressure in the container, in particular when the container is intended to store carbonated beverages.

Furthermore, although there are no attachment means for the section of the lower ring connected to the lid by the joint, it is not easy to operate the lid to allow the section of the lower ring connected to the lid to rotate into the raised position when the lid has to be moved from the open tilted position to the closed position.

Disclosure of Invention

The main idea of the present invention is to propose a closure device that will enable a cap to remain attached to the neck of a container and that is reliable, easy to make and use.

According to one embodiment, the present invention provides a closure device intended to be fixed on a neck of a container comprising an orifice, comprising:

-a cap comprising a top wall and an outer peripheral skirt having a helical thread formed by a series of ribs and intended to cooperate with a helical thread formed in the neck to allow:

unscrewing of the neck cap about the X axis moves the cap from a closed position, in which the upper wall closes the neck aperture and the outer peripheral skirt surrounds the neck, to a release position, in which the cap is no longer attached to the neck; and is

Screwing of the cap on the neck to move the cap from the release position to the closed position;

-a lower ring axially fixed to the neck and moving around the neck in a rotary manner along the X-axis; and

a hinge means joining the lid to the lower ring, comprising two plates of hinge means connecting the outer peripheral skirt and the lower ring and arranged to allow the lid to rotate between a release position and an open inclined position in which the lid is disengaged from the neck aperture,

additionally included is a closure cap locking device configured to lock a cap in an open tilted position, comprising a locking device flange formed on an outer peripheral skirt between two sheets and configured to rest against a neck of a container when the cap is in the open tilted position, the flange having an inner face on which at least one rib of a helical thread series of ribs is formed.

This allows to increase the pressure resistance of the capping device.

According to other advantageous embodiments, this type of capping device may have one or more of the following features.

According to one embodiment, the lower ring comprises a first section comprising coupling elements projecting radially into the lower ring and intended to be arranged below the coupling collar to axially retain the lower ring in the container neck, the first and second sections of the lower ring being hinged together in such a way that the second section is rotated relative to the first section between a lowered position, in which the second section is intended to be arranged below the locking collar, and a raised position, in which the second section is intended to be arranged at least partially above the locking collar.

According to one embodiment, the first section of the lower ring has a front region diametrically opposite the second section and two coupling regions, each arranged between the front region of the first section and the second section, the coupling elements being arranged only in the two coupling regions to allow radial movement of the lower ring to facilitate passage of a portion of the second section through each side of the coupling collar during movement of the second section between the lowered position and the release position. In this way, the following tensions are small: the tension will be exerted on the lower ring to allow the second section to move between the lowered and raised positions, thereby making the use of the closure easier.

According to one embodiment, the coupling elements are radially inwardly projecting protrusions.

According to an embodiment, the second section extends over an angle in the range of 90 ° to 150 °.

According to an embodiment, the front portion of the second section extends over an angle in the range of 90 ° to 150 °.

According to an embodiment, each of the two attachment areas extends over an angular range between 30 ° and 90 °.

According to one embodiment, the hinge means extend in a first angular interval cut into two equal parts by the Pb bisecting plane, the two hinge areas extending in angular segments symmetrical with respect to the Pb bisecting plane.

According to one embodiment, the hinging means extend in a first angular interval that is cut into two equal parts by the Pb bisecting plane, and wherein the helical thread formed on the outer peripheral skirt of the cap extends according to a first direction around the X axis and has a lower end and an upper end, the lower end of the helical thread being arranged in a second angular interval defined between the Pb bisecting plane and the following radial plane: the radial plane is positioned at 160 ° from the Pb bisecting plane according to a second direction opposite to the first direction. This facilitates the coupling of the cap in the neck when moving the cap from the open tilted position to the closed position.

According to one embodiment, the invention also relates to an assembly comprising a container equipped with a neck comprising a dispensing orifice, a coupling collar and a helical thread, and a closure device as described above, the lower ring being axially fixed to the neck and moving on the neck in a rotating manner about said X axis.

According to an embodiment, the capping device further comprises a locking device configured to lock the cap in the open tilted position, the locking device comprising a stop projecting radially outwards from the cap and configured to rest against the neck attachment collar during movement of the cap from the open tilted position to the release position, so as to use in the second section a tension force having a radially outwards directed component and an axially upwards directed component so as to facilitate movement of the second section between the lowered position and the raised position. This makes it easier to use the closure, especially when the lid has to be moved from the open tilted position to the closed position.

According to one embodiment, the stop is configured such that during movement of the cover from the release position to the open inclined position, the stop rests against an upper end of the second section of the lower ring to move the second section from the raised position to the lowered position. This also makes it easier to use the capping device.

According to an embodiment, the locking means further comprise a flange formed on the outer peripheral skirt of the lid and extending axially, wherein the heel is configured to rest against a helical rib of a helical thread formed in the neck of the container during movement of the lid from the open inclined position to the release position to exert a tension on the second segment having a radially outwardly directed component and an axially upwardly directed component so as to facilitate movement of the second segment from the lowered position to the raised position. This also makes it easier to use the capping device.

According to an embodiment, the hinge arrangement comprises two sheets and the heel is formed between the two sheets.

According to an embodiment, the stop projects radially outward from the heel.

Drawings

The invention will be better understood and other objects, details, features and advantages thereof will become more apparent in the following description of several specific embodiments thereof, which is provided by way of illustration and not of limitation with reference to the accompanying drawings.

Fig. 1 is a three-quarter perspective view of a closure.

Fig. 2 is a cross-sectional view of a container neck intended to receive the closure of fig. 1.

Fig. 3 is a side view of the closure mounted on the neck of a container and shows the cap of the closure in a release position in which the cap is no longer engaged with the neck of the container.

Fig. 4 is a perspective view of the closure mounted on the neck of a container and showing the cap of the closure in a tilted open position with the cap disengaged from the aperture of the neck.

FIG. 5 is a side perspective view of the closure.

FIG. 6 is another side perspective view of the closure.

Fig. 7 is a rear perspective view of the capping device.

FIG. 8 is a front perspective view of the closure.

Fig. 9 is a cross-sectional view of the closure mounted on the neck of the container and shows the cap of the closure in an inclined open position with the cap disengaged from the aperture of the neck.

Fig. 10 is a cross-sectional view of the closure mounted on the neck of a container and showing the cap of the closure in an intermediate position between the release position and the inclined open position.

Fig. 11 is a perspective view of the closure mounted on the neck of a container and showing the cap of the closure in a tilted open position.

Detailed Description

In the description and in the drawings, the axis X corresponds to the axis of rotation of the cap 1 of the closure device when the closure device is screwed onto the neck 2 of the container. By convention, the "radial" orientation is oriented orthogonal to axis X and the axial orientation is oriented parallel to axis X. The terms "outer" and "inner" are used to define the relative position of one element with respect to another, with reference to the X axis, an element close to the axis X thus being classified as an inner element as opposed to an outer element located radially on the periphery.

The terms "upper" and "lower" are used to define the relative position of one element with respect to another element by reference to the following positions: in this position, the orifice 3 of the neck 2 is directed upwards and the cap 1 is in the closed position on the neck 2 of the container, the element intended to be placed lower being designated as lower and the element intended to be placed higher being designated as upper. The terms "front" and "rear" are used to define the relative position of one element with respect to the other along a diameter perpendicular to the axis X.

Referring to fig. 1 to 10, the following components are described below: the assembly comprises a closure means, particularly shown in figure 1, and a container equipped with a neck 2, particularly shown in figure 2.

As shown in fig. 2, the neck 2 of the container has an upper end on which is formed an aperture 3, the aperture 3 allowing the contents of the container to be poured out. The neck 2 of the container comprises a support collar 4 and an engagement collar 5, the support collar 4 projecting radially outwards, the engagement collar 5 also projecting radially outwards and being arranged axially between the support collar 4 and the aperture 3. A cylindrical portion is formed axially between the support collar 4 and the bore 3. On the other hand, the neck 2 comprises a helical thread 6 positioned axially between the engaging collar 5 and the orifice 3, this helical thread 6 being formed by a series of helical ribs radially projecting from the outer surface of the neck 2 towards the outside. The helical thread 6 is intended to cooperate with a complementary helical thread 7 formed by a series of helical ribs formed on the cap 1 of the closure device.

According to one embodiment, the helical thread 6 formed on the neck 2 and the helical thread 7 formed on the cap 1 are interrupted. In other words, adjacent helical ribs are separated by the following spacing: this spacing forms a vent when the cap 1 is still attached to the neck 2 and in particular allows to evacuate the air present inside the container.

The capping device comprises: a lower ring 9, the lower ring 9 being retained in the neck 2 of the container; a lid 1, the lid 1 being intended to cover an aperture 3 of a container in order to seal the aperture 3; a hinge 10, which hinge 10 connects the lid 1 with the lower ring 9; and locking means positioned to lock the lid 1 in the tilted open position shown in figures 4, 9 and 11. In the tilted open position, the lid 1 is disengaged from the aperture 3 of the container and does not interfere with the pouring of the contents of the container.

As illustrated in fig. 7 and 8, the articulation device 10 extends over an angular range S1, this angular range S1 being divided into two equal parts by a vertical bisecting plane Pb.

Returning to fig. 1, it is observed that the cap 1 comprises an upper wall 13, the upper wall 13 being intended to be arranged substantially and orthogonally to the axis X opposite the orifice 3 of the neck 2 when said cap 1 is in the closed position. The cap 1 further comprises an outer peripheral skirt 14, which outer peripheral skirt 14 is intended to surround the neck 2 of the container when the cap 1 is in the closed position. An outer peripheral skirt 14 extends downwardly from the outer periphery of the upper wall 13, perpendicular to the upper wall 13.

The outer peripheral skirt 14 has a helical thread 7 on its inner face, the helical thread 7 being formed by a series of helical ribs extending in the first rotational direction about the axis X, visible in fig. 2 and 5 to 7. The helical thread 7 is intended to cooperate with a helical thread 6 formed on the outer surface of the neck 2. In this way, the cap 1 can be screwed into the neck 2 in order to close the container and unscrewed from the neck 2 in order to open the container. The lid 1 is thus movable between a closed position and a release position shown in fig. 3. In the release position, the cap 1 is no longer engaged with the neck 2. Thus, the cap 1 can be tilted towards the tilted open position shown in fig. 4, 9 and 11, in which the cap 1 is disengaged from the aperture 3 of the neck 2 so as not to interfere with the pouring out of the contents of the container.

As shown in particular in fig. 9, the cap 1 also comprises an inner skirt 8, which inner skirt 8 extends vertically downwards from the upper wall 13 of the cap 1 and is dimensioned to be inserted into the orifice 3 of the neck 2. The cap 1 further comprises an annular lip 15, which annular lip 15 extends from the upper wall 13, radially between the inner skirt 8 and the outer peripheral skirt 14. The inner skirt 8 and the annular lip 15 are dimensioned such that, when the cap 1 is in the closed position in the neck 2 of the container, the inner skirt 8 is in contact against the inner face of the neck 2 while the annular lip 15 is in contact against the outer face of the neck 2. In this way, the inner skirt 8 and the annular lip 15 make it possible to ensure the seal of the closure.

Advantageously, before the first opening of the container, the lower ring 9 is connected to the lid 1 by some frangible bridges, not visible in the figures, which are intended to break during the opening of the lid 1. These frangible bridges thus constitute a tamper-proof seal.

The lower ring 9 is axially retained on the neck 2 of the container while the lower ring 9 can rotate about the axis X with respect to the neck 2. As shown in fig. 3, the lower ring 9 comprises two parts, a first section 16 and a second section 17, hinged to each other, whereby the lower ring 9 is connected to the lid 1 by means of the hinge means 10.

According to one embodiment, the lower ring 9 comprises two narrow regions, i.e. the radial thickness of the two narrow regions is smaller than the radial thickness of the lower ring 9 outside said narrow regions. The two narrow regions delimit a first section 16 and a second section 17. The narrow region thus forms a pivot allowing the second section 17 to hinge relative to the first section 16.

According to another embodiment, the lower ring 9 has no narrow area delimiting the first section 16 and the second section 17.

The second section 17 is rotatable upwards relative to the first section 16 between a lowered position, in which the second section 17 is intended to be arranged below the engagement collar 5, and a raised position, in which the second section 17 is arranged at least partly above the engagement collar 5. This allows the cap 1 to be moved upwardly relative to the neck 2 of the container until the helical thread 7 of the cap 1 disengages from the helical thread 6 formed on the neck 2 of the container. In other words, when unscrewing cap 1, lower ring 9 is driven in a rotatable manner about axis X, while second section 17 of lower ring 9 rotates with respect to first section 16 to the raised position, to allow axial movement of cap 1 from the closed position up to the release position represented in fig. 3. As the lid 1 is rotated from the release position to the tilted open position, the second section 17 of the lower ring 9 rotates in the opposite direction relative to the first section 16 and then returns to the lowered position. On the other hand, as described in more detail below, the second section 17 also rotates from the lowered position to the raised position with respect to the first section 16 when the cover 1 rotates from the tilted open position to the release position.

The lower ring 9 is axially retained on the neck 2 of the container by means of an engagement collar 5, visible in particular in fig. 5 to 7. The engagement collar 5 presents a frustoconical outer surface tapering upwards, i.e. in the direction of the orifice 3 of the container. The engagement collar 5 defines a projection downwards, i.e. in the opposite direction to the aperture 3. The first section 16 of the lower ring 9 comprises engagement elements 18, said engagement elements 18 cooperating with the engagement collar 5 formed on the container so as to axially retain the lower ring 9 to the neck 2 of the container. The engagement elements 18 are projections which project radially inwards from the first section 16 of the lower ring 9, these projections being shown in detail in particular in fig. 5 and 6. The retaining elements 18 have a radial dimension which increases from bottom to top, that is to say in the direction of the upper edge of the lower ring 9. During assembly of the closure on the neck 2 of the container, the engagement element 18 slides against the frustoconical surface of the engagement collar 5 and then locks behind the engagement collar 5 by elastic return.

As shown in fig. 5 and 6, the first section 16 of the lower ring 9 comprises a front region 19 and two joining

regions

20, 21, the front region 19 being diametrically opposite the second section 17 of the lower ring 9, the two joining

regions

20, 21 being arranged on each side of the front region 19 and each being arranged between the front region 19 and the second section 17 of the lower ring 9. The joining elements 18 are arranged only in the two joining

regions

20, 21. Since there are no engagement elements 18 in the front region of the first section 16, there is a radial space between the lower ring 9 and the neck 2 which allows the lower ring 9 to move from front to rear and vice versa. The radial clearance between the lower ring 9 and the neck 2 is for example between 0.5mm and 1mm in the anterior/posterior direction. This facilitates the passage of a portion of the second section 17 by engaging either side of the collar 5 during movement of the second section 17 between the lowered and raised positions. In other words, the following tensions are small: the tension will be applied on the lower ring 9 to allow the second section 17 to pass into engagement with each side of the collar 5.

Advantageously, the second section 17 extends over an angular range of between 90 ° and 150 °, and for example about 120 °, the front region of the second section 16 extends over an angular range of between 90 ° and 150 °, for example about 120 °, while each of the two joining

regions

20, 21 extends over an angular range comprised between 30 ° and 90 °, for example about 60 °.

On the other hand, the bisecting plane Pb cuts the second section 17 and the front portion of the second section 17 into two equal portions. The angular ranges corresponding to the two joining

zones

20, 21 are therefore symmetrical to one another about the bisecting plane Pb.

The hinge arrangement 10 is configured to allow the lid 1 to be rotated between a release position shown in fig. 3, in which the peripheral skirt 14 extends downwardly from the upper wall 13 of the lid 1, and a tilted open position represented in fig. 4, 9 and 11, in which the peripheral skirt 14 extends upwardly from the upper wall 13 of the lid 1. In the embodiment shown, the hinging means 10 comprise two

foils

11, 12, as can be seen in particular in fig. 4, the two foils 11, 12 joining the lid 1, and more particularly the outer peripheral skirt 14 of the lid 1, with the lower ring 9, and more particularly with the second section 17 of the lower ring 9. The two foils 11, 12 are symmetrical about the bisecting plane Pb.

The locking means comprise a heel 22, visible in particular in fig. 1, which heel 22 is formed on the outer peripheral skirt 14 of the lid 1. The heel 22 is arranged between the two foils 11, 12. Advantageously, the lower end of the heel 22 is located at the same height as the lower end of the peripheral skirt 14. Heel 22 includes a stop 23, which stop 23 extends circumferentially about axis X and projects radially outward from heel 22.

During the movement of the cover 1 from the release position towards the tilted open position, the stop 23 abuts against the upper end of the second section 17 of the lower ring 9, which tends to return said second section 17 towards the lowered position.

On the other hand, during the movement of the cover 1 from the inclined open position towards the release position, firstly, as shown in fig. 10, the stop 23 rests against the engagement collar 5 to exert a tension on the second section 17 of the lower ring 9 having a radially outward directed component and an axially upward directed component. This allows the lower ring 9 to move from front to rear to press the front region 19 of the first section 16 of the lower ring 9 against the neck 2 of the container, so as to facilitate movement of the second section 17 towards the raised position. This also allows to facilitate the movement of the second section 17 between the lowered position and the raised position.

Then, as shown in fig. 10, during the movement of the cap 1 from the inclined open position to the release position, the outer surface of the heel 22 comes to rest at a second moment in time against the upper surface of the helical rib of the helical thread 6 formed in the neck 2 of the container, which also allows to exert on the second section 17 a tension force having a radially outwardly directed component and an upwardly directed component to move the second section 17 towards the raised position.

On the other hand, as shown in fig. 11, the lower end 24 of the helical thread 7 formed on the inner face of the outer peripheral skirt 14, i.e. the start of the helical thread 7, is arranged in an angular range S2 defined between the bisecting plane Pb and a radial plane Pr located at 160 ° from the bisecting plane Pb according to a second direction opposite to the first direction of rotation, i.e. the direction in which the helical thread 7 rotates about the axis X. Thus, the lower front portion 25 of the outer peripheral skirt 14 is free of the helical thread 7, which makes it easier to fit the cap 1 on the neck 2 of the container. This arrangement is particularly advantageous when the cap 1 can assume a slightly rearward position with the cap 1 in contact with the neck 2 of the container. This is particularly true in the following cases: when the front region 19 of the first section 16 is free of the engagement elements 18 and therefore the lower ring 9 can move radially from front to rear with respect to the neck 2 of the container.

Advantageously, the lower end of the helical thread 7 is arranged in an angular range defined between two radial planes positioned respectively at 90 ° and 160 ° from the bisecting plane Pb according to a second direction of rotation opposite to the direction of the helical thread 7 of the cap 1.

On the other hand, as schematically represented in fig. 8, 9 and 10, at least one of the ribs of the series of ribs of the helical thread 7 is formed on the inner face of the heel 22. In other words, at least one of the ribs of the helical thread 7 is formed between the two foils 11, 12 of the hinge 10. The presence of said ribs formed on heel 22 makes it possible to increase the resistance to the pressure of screw-like thread 7 and thus prevent lid 1 from opening unintentionally due to excessive pressure on the container, in particular when the container is intended to contain carbonated beverages.

The kinematics of the cap 1 are as follows. During the first unscrewing, the lid 1 moves away from the closed position and away from the lower ring 9 to the release position illustrated in fig. 3. The frangible bridges break during this movement. Furthermore, during this unscrewing movement of the cap 1, the lower ring 9 is rotatably driven about the axis X and the second section 17 of the lower ring 9 rotates towards the raised position when the cap 1 is moved away from the engagement collar 5.

The lid 1 can then be rotated backwards in the direction of an open inclined position in which the peripheral skirt 14 extends upwards from the top wall 13. During the movement of the cover 1 backwards in the direction of the open inclined position of the cover 1, the stop 23 abuts against the upper end of the second section 17 of the lower ring 9, so that the second section 17 of the lower ring 9 rotates from the raised position to the lowered position.

As shown in fig. 9, when the second section 17 of the lower ring 9 is in the lowered position and the lid 1 is in the tilted open position of the lid 1, the stop 23 is supported against the engagement collar 5. In this way, cap 1 is kept in the tilted open position of cap 1 due to this abutment of stop 23 against engagement collar 5, cap 1 cannot be rotated towards the release position in which cap 1 faces dispensing orifice 3 while second section 17 of lower ring 9 is kept in the lowered position. This makes it possible to increase the minimum opening angle of the cover 1. Advantageously, therefore, when the lid 1 is in the tilted open position of the lid 1 and the second section 17 of the lower ring 9 is in the lowered position, the opening angle of the lid 1 is greater than 120 °, and advantageously greater than or equal to 145 °, and for example about 180 °. The opening angle corresponds to the following convex angular section: the convex angular section is formed at the intersection between a plane parallel to the upper wall 13 of the cover 1 and a horizontal plane.

To close the lid 1 again, the user tilts the lid 1 forward to the release position. During this inclination, the stop 23 rests against the engagement collar 5 to exert on the second section 17 of the lower ring 9 a tension force having a radially outward directed component that makes it possible to move the lower ring 9 from the front to the rear and an axially upward directed component that allows to facilitate the movement of the second section 17 of the lower ring 9 towards the raised position. The outer surface of the heel 22 also abuts against the helical rib of the helical thread 6, which also facilitates movement of the second section 17 of the lower ring 9 towards the raised position.

When the second section 17 is in the raised position and the cap 1 is in the release position, the cap 1 may then be screwed back into the neck 2 of the container. During screwing, the lower ring 9 is rotatably driven about the axis X and the second section 17 of the lower ring 9 rotates towards the lowered position as the cap 1 approaches the engagement collar 5.

Advantageously, the entire closure is moulded in a single piece of synthetic material, such as polyethylene and advantageously high density polyethylene. Advantageously, the closure means is moulded in the configuration of fig. 1, i.e. in the closed position in which it can be mounted directly on the neck 2 of the container.

Although the invention has been described with respect to various embodiments, it is more evident that the invention is not in any way limited by the various embodiments and that the invention comprises all the technical equivalents of the means described and their combinations, insofar as they fall within the framework of the invention as defined by the claims.

Use of the verbs "consisting of 823070, \8230composition", "including" or "comprising", and combinations thereof, does not exclude the presence of other elements or stages than those identified in the claims.

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

Claims

1. A closure device intended to be attached to a neck (2) of a container comprising an orifice (3), comprising:

-a cap (1), said cap (1) comprising an upper wall (13) and an outer peripheral skirt (14), wherein said outer peripheral skirt (14) has a helical thread (7), said helical thread (7) being formed by a series of ribs and intended to cooperate with a helical thread (6) formed in said neck (2) to allow for

Unscrewing of the cap (1) from the neck (2) about an X axis to move the cap (1) from a closed position, in which the upper wall (13) closes the aperture (3) of the neck and the outer peripheral skirt (14) surrounds the neck (2), to a release position, in which the cap (1) is no longer attached to the neck (2); and

screwing of the cap (1) into the neck (2) to move the cap (1) from the release position to the closed position;

-a lower ring (9), said lower ring (9) being axially fixed to said neck (2) and being movable in rotation around said neck (2) along said X axis; and

-hinge means connecting the lid (1) to the lower ring (9), comprising two plates (11, 12) of said hinge means, said two plates (11, 12) connecting the outer peripheral skirt (14) and the lower ring (9) and being arranged to allow the lid (1) to rotate between the release position and an open inclined position in which the lid (1) is disengaged from the aperture (3) of the neck,

additionally comprising said closure cap (1) locking means, said cap (1) locking means being configured to lock said cap (1) in said open inclined position, comprising such locking means flange (22), said flange (22) being formed on said outer peripheral skirt (14) between said two sheets (11, 12), and said flange (22) being configured to rest against said neck (2) of said container when said cap (1) is in said open inclined position, said flange (22) having an inner face in which at least one of said ribs of said helical thread series (7) is formed.

2. A closure device according to claim 1, wherein the lower ring (9) comprises a first section (16) and a second section (17), the first section (16) comprising a coupling element (18), the coupling element (18) projecting radially into the lower ring (9) and being intended to be arranged below a coupling collar (5) to axially retain the lower ring (9) in the neck (2) of the container, the first section (16) and the second section (17) of the lower ring (9) being hinged together such that the second section (17) rotates relative to the first section (16) between a lowered position, in which the second section (17) is intended to be positioned below the locking collar (5), and a raised position, in which the second section (17) is intended to be positioned at least partially above the locking collar (5).

3. A closure device according to claim 2, wherein the first section (16) of the lower ring (9) comprises a front region (19) and two coupling regions (20, 21), the front region (19) being diametrically opposite the second section (17), the two coupling regions (20, 21) each being arranged between the front region (19) of the first section (16) and the second section (17), the coupling means (18) being arranged only in the two coupling regions (20, 21) to allow radial movement of the lower ring (9) to facilitate passage of a portion of the second section (17) through each side of the coupling collar (5) during movement of the second section (17) between the lowered position and the release position.

4. A capping device according to claim 3, wherein the coupling elements (18) are radially inwardly projecting tabs.

5. A capping device according to any one of claims 1 to 4, wherein the hinge means (10) extend in a first angular interval cut into two equal parts by a Pb bisecting plane, and wherein the helical thread (7) formed on the outer peripheral skirt (14) of the cap (1) extends according to a first direction about the X axis and has a lower end and an upper end, wherein the lower end of the helical thread (7) is arranged in a second angular interval defined between the Pb bisecting plane and a radial plane positioned at 160 ° from the Pb bisecting plane according to a second direction opposite to the first direction.

6. An assembly comprising a container equipped with a neck (2) and a closure device according to any one of claims 1 to 5, the neck (2) comprising a dispensing orifice (3), a coupling collar (5) and a helical thread (6), the lower ring (9) being axially fixed to the neck (2) and moving around the neck (2) in a rotary manner along the X axis.

7. Assembly according to claim 6, wherein the capping device further comprises a locking device configured to lock the cap (1) in the open-inclined position, the locking device comprising a stop (23), the stop (23) projecting radially outwards from the cap (1) and being configured to rest against the collar (5) of the neck (2) during movement of the cap (1) from the open-inclined position to the release position, so as to exert a tension on the second section (17) having a radially outwards directed component and an axially upwards directed component, so as to facilitate movement of the second section (17) between the lowered position and the raised position.

8. The assembly according to claim 7, wherein the stop (23) is configured such that during movement of the cover (1) from the release position to the open inclined position, the stop (23) abuts against an upper end of the second section (17) of the lower ring (9) to move the second section (17) from the raised position to the lowered position.

9. The assembly according to claim 7 or 8, wherein the locking means further comprise a flange (22) formed on the outer peripheral skirt (14) of the cap (1) and extending axially, wherein the flange (22) is configured to abut against a helical rib of the helical thread (6) formed in the neck (2) of the container during movement of the cap (1) from the open inclined position to the release position, so as to exert on the second segment (17) a traction force having a radially outwardly directed component and an axially upwardly directed component so as to facilitate movement of the second segment (17) from the lowered position to the raised position.

10. Assembly according to claim 9, wherein the hinge means (10) comprise two plates (11, 12) and wherein the flange (22) is formed between the two plates (11, 12).

11. Assembly according to claim 9, wherein the stop (23) projects radially outwards from the flange (22).