JP2007505793A - Fixing device and installation method for fixing dispenser member to opening of reservoir - Google Patents

Abstract

The present invention relates to a fixing device for fixing the dosing member (3) to the opening (41) of the fluid reservoir (4). The device of the present invention comprises a means (113) for receiving the dosing member (3) and a means (12) for securing to the opening of the reservoir, said device having an axis of symmetry (X). It has a fixing ring (1; 1 ') provided. The ring has a peripheral outer wall (111, 121) and a band (2; 2 '), which is placed on the ring in a manner that blocks the ring over the reservoir opening. This band has an inner wall (21) in contact with the outer wall of the ring. The device of the present invention is characterized in that at least one sheet (114; 114 ') is provided on the outer wall of the ring, and a projecting profile that fits on the sheet of the ring on the inner wall (21) of the band. 24; 24 '; 24 ") is provided.

Description

  The present invention relates to a fixing device and a mounting method for fixing a dispenser member such as a pump or a valve to an opening of a fluid reservoir.

  Generally, the opening is formed in a neck protruding from the body of the reservoir that serves as a storage space for storing fluid. In the case of the invention, the device has an axis of symmetry and has a fixing ring with means for receiving the dispenser member and means for fixing to the opening of the reservoir. In addition, the fixation device further has a band designed to surround the ring, the band having an inner wall designed to be in contact with the outer wall of the ring. Such fixing devices of the type having a ring and a band are often used in the fields of perfume, cosmetics, especially medicine.

  In general, the fixation ring has a peripheral skirt designed to achieve fixation by being placed around the opening of the reservoir. A conventional reservoir opening is formed by a neck with a peripheral reinforcement protruding outward. Therefore, the reinforcing portion has a shape in which a downward shoulder is formed, and the shoulder serves as a fastening region for realizing fastening to the skirt. In a conventional manner, the skirt is provided with a fastening head, and the heads are distributed and arranged at equal intervals along the inner periphery of the skirt as an effective shape. However, in a variant, the fastening head may be replaced by a continuous peripheral bead that still fits under the shoulder of the neck. The skirt may have an unbroken shape around the entire circumference, but may be divided into a plurality of segments separated by slots. Each segment may be provided with one or more fastening heads.

  In order to mount such a fixing ring with a skirt having a head or bead, it is necessary to allow the skirt to be deformed radially outward as it passes over the peripheral reinforcement formed in the neck. is there. After passing over the peripheral reinforcement, the skirt can return to its original state again, with its head or beads fitted under the shoulder of the reinforcement. As an effective configuration, the skirt can then return to its cylindrical initial state. A locking band is attached to the fixation ring to lock the fixation ring in place on the neck. The inner wall of the band surrounds the outer wall of the skirt or has a shape that engages with this. Thereby, the skirt is no longer deformed radially outward. Thus, the fastening profile (head or unbroken bead) is permanently locked under the shoulder of the reinforcement. The above is the current normal form as a technique for fixing a dispenser member such as a pump or a valve to a reservoir opening formed in the neck in a conventional manner.

  Documents of EP 0 653 359 and EP 0 707 895 show these types of fixing devices. In the document EP 653 359, the skirt is divided and is provided with a plurality of fastening heads, whereas in the document EP 0 707 895, the skirt is unbroken and similar to the fastening head. Protrusions are provided. Of course, it is essential that the band be attached to the ring after the ring has been installed in the opening in the reservoir, so that the skirt will be radially outward during installation. It can be deformed. In any of the above prior art documents, the retaining ring has an outwardly projecting profile, which is designed to have a contact area in contact with the bottom end of the band. The strength of the protruding profile is sufficient to allow the ring to be in place over the reservoir opening by pressing on the band (which itself contacts the protruding profile). Thus, by applying pressure to the band, in the first stage, a ring can be attached to the opening of the reservoir, and in the second stage, the protruding profile is deformed or broken by the band by pressing more firmly. Is done. As a result, it can be permanently fitted around the ring (and more specifically the skirt), thereby locking the ring to the opening of the reservoir. Thus, in any of the above documents, by using a member that protrudes outward from the substantially cylindrical outer wall of the ring in combination with the bottom edge of the band, the band is placed on the ring. Is temporarily pre-positioned.

However, another problem arises related to the stable securing of the band to the ring after the band enters the final mounting position on the ring. In other words, it is necessary to prevent the band from coming off in any way. This is because if the band is removed, the skirt is free to deform outward again, and then the ring may come off.
In the prior art, a snapping or crimping system has already been provided for the purpose of snapping or crimping the band to the ring. The document EP 0 704 251 also discloses a technique in which inclined splines or vertical splines are provided protruding from the inner wall of the band, which splines are designed to bite into the ring production material.

  It is an object of the present invention to provide a device having a fixing ring and a band, the band being pre-positioned on the ring and / or the band being permanently fixed to the ring in a simpler and more stable manner. By prescribing, the above-mentioned problems of the prior art are solved.

  In order to achieve the above object, the present invention proposes that the outer wall of the ring is provided with at least one recess, and further, the inner wall of the band has at least one protrusion acting to fit into the recess of the ring. It is the structure of providing a profile.

This ensures that the band is snapped to the ring.
In one embodiment, the profile fitted in the recess corresponds to the final attachment position where the band is finally attached to the ring. In this case, the profile on the band does not work for pre-positioning the band to the ring.
In another embodiment, the profile fitted in the recess corresponds to an intermediate mounting position in the middle of mounting the band on the ring. In this case, the recess in the ring does not serve to permanently secure the band to the ring, but merely to temporarily pre-position it.

According to features common to both of these embodiments, the at least one recess extends in a plane perpendicular to the axis. The recess may be in the form of an annular groove or a plurality of groove segments extending in an annular shape, for example.
As another aspect of the present invention, the inner wall has a top upper end and a bottom side end, and the at least one protruding profile is located closer to the top upper end than the bottom side end, and is effective. As a simple structure, it is formed in the vicinity of the top end portion. This embodiment is particularly well adapted to the final fixing of the band to the ring.

  Further, in one variation, the inner wall has a bottom side end, the at least one protruding profile is formed at the bottom side end, and the at least one profile is at least at the intermediate mounting position. It will be in the state which fits in one recess. This embodiment is more specifically adapted for pre-positioning of the band to the ring and subsequent final fixation. Further, as an effective configuration, the at least one profile is in a state of being fitted under the bottom side edge of the ring in the final mounting position. This feature may be protected independently. For example, the ring can be configured with no recess and the protruding profile on the band can only be snapped under the ring in the final mounted position.

  As another aspect of the present invention, common to all of the embodiments, the band comprises at least one recess in the outer wall. Further, as an effective configuration, the at least one recess is located at the same height as the at least one protruding profile when viewed in the axial direction. As a preferred configuration, the at least one recess and the at least one projecting profile are formed in the form of an inwardly extending deformation portion of the band. Thus, the cap can be attached to the securing device, but the cap comprises an inner projection designed to fit into the at least one recess of the band. The combination of the recess and the protrusion forms a snap fastening system that allows for secure retention of the cap to the fastening device. This creates an outer recess and an inner projecting profile when the band is deformed, which serves for permanent and / or intermediate fixation of the band to the ring, and further, the cap to the band. Also useful for temporary fixation.

Also, in a practical embodiment, the ring has an upper peripheral bushing and a skirt extending downward from the bushing, the skirt being formed with segments separated by slots, each segment facing inward At least one fastening head protruding into the bushing is formed, and the at least one recess is formed at the height of the bushing.
The present invention is also a method of mounting the fixing device defined above to an opening of a reservoir, wherein the opening is provided with a shoulder for fastening, One protruding profile defines a method in which the fastening head remains fitted in the at least one recess until it is fitted under the fastening shoulder of the reservoir opening.

The present invention will be described more fully with reference to the accompanying drawings showing three embodiments of the present invention shown as non-limiting examples.
In all three embodiments, the fixation device of the present invention is designed to be permanently attached to the opening of the fluid reservoir 4. The reservoir may be the same in all three embodiments of the present invention. However, they may have different shapes, colors, or appearances. In the example shown here, the opening 41 is formed in the neck 40. The neck is connected to a shoulder 44, which already forms part of the reservoir body that serves to store fluid. The neck 40 protrudes from the shoulder 44 and forms an opening 41 inside. As an effective configuration, the neck 40 has a symmetrical shape with respect to the symmetry axis X. The inner wall may be cylindrical or may be slightly recessed. For example, it may have a shape in which a section having a narrow cross section is provided, and the inner wall of the neck is slightly recessed under the portion. The neck further has a top peripheral edge 42, in which a sealing bead 421 may be formed in an upward projecting manner. A peripheral reinforcing portion 423 is formed on the outer wall of the neck 40 so as to protrude outward. The reinforcing portion 423 is connected to the lower portion of the neck through a shoulder 43, and the shoulder is downward and outward. The shoulder 43 serves as a fastening region for realizing fastening to various fixing devices of the present invention. The design of the neck 40 is completely conventional as it relates to a reservoir made of glass or plastic.

  In all of the embodiments, the various fixing devices of the present invention are combined with the dispenser member 3 (pump, valve, etc.). In a conventional manner, the dispenser member has a body 30 that is shaped with an intake opening that extends into the neck 40 or the reservoir body. In the example shown here, the main body 3 includes a peripheral collar 31 protruding outward. A neck gasket 34 may be provided on the bottom surface of the collar 31, and the gasket works in such a manner as to achieve sealing by being compressed against the peripheral edge 42 of the neck 40. The peripheral bead 421 helps to improve the seal by locally compressing the gasket more strongly. The body 30 is combined with a dispenser head 32, which can also incorporate a dispensing opening, for example in the form of a spray nozzle. The dispenser head 32 can also be configured to act as a pusher designed to be pushed for the purpose of driving the dispenser member. For example, the dispenser head 32 can be pushed back to its rest position by the return spring 33. With such a configuration, when the user depresses the top surface of the dispenser head 32, the spring 33 is compressed and a predetermined amount (“dose”) of fluid is dispensed from the main body 30. Such a design for the dispenser member, whether pump or valve, is entirely conventional, and in any case the specific design of the dispenser member is of no importance to the present invention.

All of the various fixing devices of the present invention are comprised of two components (i.e., fixing ring 1, band 2). In various embodiments of the present invention, the structure of each of the retaining ring and the band is substantially the same, similar or the same.
The fixing ring 1 substantially comprises means for receiving the dispenser member 3 and means for fixing the container to the neck 40.

  More strictly speaking, in the example shown here, the fixing ring 1 includes a top-side bushing 11 and a bottom-side skirt 12. The bushing 11 has an outer wall 111 and an inner wall 112. The bushing 11 also has an upper free end 115. The bushing 111 is connected to the bottom side skirt 112, but is formed such that a downward shoulder 113 extends inward. The shoulder 113 works in a manner that engages with an outer margin of the radial collar 31 formed in the main body 30 of the dispenser member 3. The inwardly extending shoulder 113 is in contact with the top surface of the collar 31 so that the skirt 12 extends around the edge of the collar 31. Therefore, the bushing 111 is placed at a position above the collar 31. The inner diameter of the bushing is smaller than the outer diameter of the collar 31 at the position of the inner wall 112.

  The skirt 12 also has an inner wall 122 and an outer wall 121. Due to the presence of the inwardly extending shoulder 113, the position of the inner wall 122 of the skirt 12 is further outside than the inner wall 112 of the bushing 11 when viewed in the radial direction. In other words, the diameter of the skirt 12 at the position of the inner wall 122 is larger than the inner diameter of the bushing 11 on the inner wall 112. The outer wall 121 of the skirt 112 may have a precise cylindrical shape. Moreover, you may decide to have an outer diameter slightly smaller than the outer diameter of the outer wall 111 of the bushing 11 in positions other than the recess 114. FIG. However, the outer wall 121 may extend in a straight line with the outer wall 111, and both may have the same outer diameter. In an embodiment of the present invention, the skirt 12 is not unbroken and is made up of a plurality of segments 123 separated by longitudinal slots 125. The slot 125 may extend to the height of the bushing 11 or may be stopped at a position where the slot 125 does not reach. Thus, the skirt is essentially made up of alternating segments 123 and slots 125 in its height direction. However, it is also possible to devise a variant in which the slot 125 does not extend to the height of the bushing 111, so that the skirt remains unbroken across the upper part. The inner wall 122 of the segment 123 of the skirt 12 is provided with a fastening head or snap fastening head 124 protruding radially inward. For example, it is possible to provide two heads 124 for one segment 123. It is also possible to provide one continuous bead segment instead of the two heads 124. The head 124 is formed at the position of the lower end 126 of the skirt 12. More precisely, they extend over the lower half of the segment 123. The head 124 acts in such a way that it touches under the shoulder 43 of the neck, as can be seen in FIGS. With this shape, the top peripheral edge 42 of the neck 40 is pressed against the bottom surface of the gasket 34, and the bead 421 provided as an option penetrates into the gasket 34 relatively deeply. In this way, fixing is realized in a manner that is safe and leak-proof.

  However, fixing in such a leak-proof manner can be maintained only by the band 2. In the final mounting position, the band 2 surrounds the outside of the skirt 12 and locks the head under the shoulder 43 as shown in FIGS. That is, the band 2 has a lock function, but also has a trim function that gives an eye-catching appearance and a protective function that protects the ring 1. The band 2 is in the form of a substantially cylindrical drum having an inner wall 21, an outer wall 22, a top upper end 25 and a bottom end 27. A rim extending inward is formed at the top upper end 25, and a through opening 26 is formed by the rim. Such an overall shape is common to all of the bands of the embodiment shown in FIGS.

  Hereinafter, with reference to FIGS. 1-3, 1st Embodiment regarding the fixing device of this invention is described in detail. At the position of the outer wall 111 of the bushing 11, the fixing ring 1 is provided with a recess 114, which can take the form of a recess or notch provided in the wall 111 and surround the periphery. . In other words, the diameter of the bushing 11 in the recess 114 is smaller than the outer diameter of the wall 111. The recess 114 may extend over the entire circumference of the bushing 11 to form a continuous annular groove. The groove 114 has side walls arranged on both sides of the end wall, and these side walls merge with the outer wall 111 respectively. The outer diameter of the bushing 11 in the outer wall 111 other than the recess 114 may be the same or slightly larger than the outer diameter of the skirt 12 of the outer wall 121. In other words, the bushing 11 has a shape protruding slightly outward with respect to the skirt 12. The inner diameter of the inner wall 21 of the band 2 is the same or slightly smaller than the outer diameter of the outer wall 111 of the bushing 11. As a preferred configuration, most of the inner wall 21 of the band is cylindrical. Therefore, it is possible to fit the band 2 on the bushing 11 in a tightly mounted manner so that the band 2 can be held in place on the ring 1 or pre-arranged. The band 2 can be fitted on the ring in the manner shown in FIGS. 1 and 2, i.e., in such a manner that its bottom end 27 is positioned at the same height as the top end of the skirt 12. That is, the ring 1 and the band 2 constitute a temporary subassembly. The friction between the band and the ring is strong enough to keep them both at least temporarily integrated.

  In the present invention, the inner wall 21 of the band 2 is provided with a projecting profile 24 extending radially inward. The profile 24 may be in the form of a continuous peripheral rib, and the inner diameter is smaller than the inner diameter of the inner wall 21. The protruding profile 24 is positioned closer to the top end 25 than the bottom end 27. The position of the protruding profile 24 can be, for example, the center of the upper half of the band 2. When the fixation device is attached to the reservoir neck, the band 2 is prepositioned or premounted on the ring 1 in the manner shown in FIGS. In addition, the dispenser member 3 is in place within the ring. The resulting assembly of band, ring, and dispenser member is placed on the neck 40 in the manner shown in FIG. The body 30 is inserted into the opening 41 while the skirt begins to fit around the neck 40. The assembly goes down along the neck until the head 124 of the skirt 12 fits under the shoulder 43 of the neck. In order to be able to put the assembly in place in this way, it is necessary for the skirt to be deformed radially outward when passing over the peripheral reinforcement 423. This is made possible by the slot 125, which allows the segments 123 to deform independently of each other. It should be noted that the assembly of band, ring and dispenser member does not change during this first phase of the neck ring attachment procedure. In other words, the band 2 is still pre-positioned on the ring 2 at this point, and its bottom end 27 is located at substantially the same height as the top end of the skirt 12. . This is made possible by the firm mounting contact between the band 2 and the ring 1 on the outer wall 111 of the bushing 11. The ring 1 is attached to the neck 40 by applying pressure, and this pressure is applied to either the dispenser head 32 or the band 2. In that case, the strength of the strong mounting contact between the band 2 and the ring 1 is such that the band 2 remains in place while the skirt 12 is being mounted around the neck 40. There is a need. As soon as the operation of attaching the skirt 12 to the neck is completed, a force is applied to the top end 25 of the band 2, and as a result, the band is moved relative to the ring 1. Thus, the band 2 is moved until its protruding profile 24 is received in the recess 114 formed in the bushing 11 of the ring 1. This state is shown in FIG. Thus, the band 2 is snapped to the ring 1 in a permanent manner by the protruding profile 24 fitted in the recess 114. It is not necessary for the bottom end 27 of the band 2 to contact the shoulder 44. Furthermore, the inwardly extending rim 25 of the band 2 does not need to be brought into contact with the top end 115 of the bushing 11 in such a way that it can be received. However, it is possible to do so. In this final position, the inner wall 21 of the band 2 can be brought into contact with the outer wall 121 of the skirt 12. Thus, the head 124 is locked under the shoulder 43. However, a small gap may remain between the band and the skirt.

  The embodiment shown in FIGS. 4 to 6 constitutes a modification of the embodiment shown in FIGS. In these variant embodiments, the fixing device further comprises a cap 5 mounted on the band 2. The cap 5 has a sleeve 52 that works to surround the band 2. The sleeve 52 is connected to the remaining portion of the cap 5 with a setback 55 formed inside the sleeve 52 in a downward direction. As for the shape of the cap in the portion beyond the setback 55, any shape may be used as long as the end is the top wall 51. That is, the cap 5 forms an internal space 50 that accommodates the band, ring, and part of the dispenser member 3. This is illustrated in FIG. In this state, the setback 55 is in contact with the top side end portion 25 of the band 2 so as to be received. In the present invention, a protrusion 53 is provided on the inner wall of the sleeve 52, and the protrusion may extend without a break or may have a dispersed shape. In other words, the protrusion 53 may be in the form of a continuous annular bead, or may be in the form of distributed protrusion points, protrusion portions, or protrusion segments. The inner diameter of the sleeve 52 is slightly larger than the outer diameter of the band 2 on the outer wall 22. However, the inner diameter of the protrusion 53 is smaller than the outer diameter of the band 2 on the outer wall 22. In addition, the outer wall 22 of the band is provided with a recess 23, which, as an effective configuration, extends over the entire periphery of the band. The recess 23 may be in the form of a continuous annular groove or channel. The outer diameter of the band in the recess 23 is smaller than the outer diameter of the band in the outer wall 22. As an effective configuration, the recess 23 is located at the same height as the protruding profile 24. However, the recess 23 can be provided at a position higher or lower than the protruding profile 24. In addition, the recess 23 and the protruding profile 24 are preferably formed by a single operation for deforming the band inward. This can be achieved by rolling or knurling. In such a case, the protruding profile 24 and the recess 23 are made by a single annular peripheral deformation. The recess 23 was also found in the first embodiment in FIGS. 1 to 3, but was not essential in the embodiment. The band 2 in the first embodiment may have an accurate cylindrical shape on the outer wall 22 thereof. On the contrary, in the embodiment shown in FIGS. 4 to 6, the recess 23 is used so as to accommodate the protrusion 53 on the cap 5. This state is shown in FIGS. The cap 5 is pre-attached to the band before the skirt 12 is attached to the neck 40. The protrusion 53 fitted in the recess 23 does not need to form a strong fixing. This is because the cap is removed for driving the dispenser member. Therefore, the final mounting position where the cap 5 is finally mounted on the band 2 is realized when the projection 53 is fitted into the recess 23, and as an arbitrary shape, the setback 55 is mounted on the band 2. This is a point in time when it comes into contact with the top top end 25 of 2 in such a way as to be received. An assembly comprising a ring, a band, a dispenser member, and a cap is attached by pressing the cap 5. In the first stage, the segment 123 of the skirt 12 deforms radially outward until the head 124 passes over the reinforcement 423 and fits under the shoulder 43. During the first stage of mounting, the band 2 remains in place on the ring 1. Thereafter, when more pressure is applied, the band 2 moves over the ring 1 and reaches the final position shown in FIG. In this position, the protrusion 53 fits into the recess 23, while the protruding profile 24 fits into the recess 114. Thus, in combination with the outer recess 23, the protruding profile 24 serves to permanently secure the band to the ring and to removably secure the cap to the band.

  Hereinafter, the third embodiment of the present invention will be described in detail with reference to FIGS. Also in the third embodiment, the fixing ring 1 ′ has the bushing 11 and the skirt 12. A segment 123 is formed in the skirt 12 separated by a slot 125, but the slot does not extend to the bushing 11. Therefore, the upper part of the skirt 12 is not cut, that is, is slot-free. In the present invention, the outer wall 121 of the skirt 12 is provided with a recess 114 ′ that forms a continuous peripheral groove (or channel) extending across the entire circumference of the skirt. If defined otherwise, if the bushing 11 is defined as extending to a height where the skirt is divided by the slot, it is possible to consider a shape in which the recess 114 is located at the height of the bushing 11. . In this case, the skirt is constituted only by the part consisting of segments 123 separated by slots 125. In addition, the band 2 'is provided with a protruding profile 24', which in this example is formed at the position of the lower free end 27 'of the band. The protruding profile 24 ′ may be formed in the form of a deformed portion extending inward of the lower end 27 ′. That is, the profile 24 'can be formed by the bottom surface inner side end portion of the bottom surface side end portion 27' deformed inward. In the present invention, the inner diameter of the band at the position of the protruding profile 24 ′ is smaller than the outer diameter of the bushing 11 or the skirt 12. Thus, when the band is fitted over the ring, the protruding profile 24 'can be contained in the recess 114'. This state is shown in FIGS. It is also possible to provide a configuration in which the inner wall of the band is in a strong mounting contact with the outer wall of the bushing 11. Thereby, temporary fixation of band 2 'to ring 1' can be improved. The state in which the protruding profile 24 ′ is fitted in the recess 114 ′ defines an intermediate mounting position in which the band 2 ′ is pre-positioned on the ring 1 ′. The assembly of band, ring and dispenser member can be attached to the neck 4 with the head 124 snapped under the shoulder 43. During this first operation, the position of the band 2 'relative to the ring 1' does not change. Thereafter, pressure is applied to the top end 25 of the band 2 'and the band is moved relative to the ring. In the final mounting position shown in FIG. 9, the protruding profile 24 ′ is housed under the bottom end 126 of the skirt 12. In this way, the band is fixed in a hooked state under the ring. In this example, the protruding profile 24 'serves to pre-position the band on the ring and to hold the band on the ring in the final mounted position. As an effective configuration, a further protruding profile 24 ″ may be provided on the inner wall of the band. These are housed in the recess 114 'at the final mounting position shown in FIG. 9, thereby improving the strength of the ring. However, the second protruding profile 24 ″ is not essential. The band may have a cap.

The technique of securing the band under the ring may be implemented separately from the technique of prepositioning the band on the ring. Then, the recess 114 (114 ') can be omitted from the ring. In that case, it is only necessary that the ring is provided with a protruding profile that works to engage with the ring.
The invention makes it possible to easily and accurately pre-position the band on the ring. In addition, the band can be fixed to the ring in a permanent and stable manner.

  The fixing ring is preferably made of an injection-molded plastic material, but the band is preferably made of metal. However, plastic may be used for the band.

It is an exploded view which shows a longitudinal cross-section about the fixing device of 1st Embodiment provided with the dispenser member ready for mounting | wearing with a reservoir neck. It is a figure similar to FIG. 1, and is a figure in an intermediate mounting position. It is a figure similar to FIG.1, 2, and a figure in the final mounting position. It is a decomposition | disassembly longitudinal cross-sectional view of embodiment which is a modification of embodiment shown to FIG. It is a figure in an intermediate | middle mounting position. It is a figure in the final mounting position regarding embodiment shown to FIG. It is an exploded view which shows the 3rd Embodiment of this invention with a longitudinal cross-section in the state just before mounting | wearing. FIG. 8 is a view similar to FIG. 7 and is a view at an intermediate mounting position. It is a figure in the final mounting position of 3rd Embodiment shown to FIG.

Claims (13)

A securing device for securing the dosing member (3) to the opening (41) of the fluid reservoir (4), said device having an axis of symmetry (X);
A fixing ring (1; 1 ') comprising means (113) for receiving the dosing member (3) and means (12) for fixing to the opening of the reservoir, the surrounding outer wall Said ring having (111, 121), and
A band (2; 2 ') that locks the ring onto the reservoir opening by being installed on the ring, said band having an inner wall designed to be in contact with the outer wall of the ring; Have
The feature is
The outer wall of the ring is provided with at least one recess (114; 114 '), and further, the inner wall (21) of the band has at least one protruding profile (24; 24') that acts to fit into the recess of the ring. 24 ″) is provided,
Said fixing device. The profile (24; 24 ') in the recess (114; 114') corresponds to the final mounting position where the band is finally mounted on the ring;
The fixing device according to claim 1. The profile (24 ') fitted in the recess corresponds to the intermediate mounting position in the middle of the band being mounted on the ring,
The fixing device according to claim 1. The at least one recess (24; 24 '; 24 ") extends in a plane perpendicular to the axis (X);
The fixing device according to any one of claims 1 to 3. The inner wall (21) has a top-side end (25) and a bottom-side end (27; 27 '), and the at least one protruding profile (24; 24 ") is higher than the bottom-side end. It is formed near the top end, as a position close to the side end, and as an effective configuration.
The fixing device according to any one of claims 1 to 4. The inner wall (21) has a bottom end (27 '), the at least one protruding profile (24') is formed at the bottom end, and the at least one profile (24 ') Being in a state of being fitted into the at least one recess (114 ') at an intermediate mounting position;
The fixing device according to any one of claims 1 to 4. The outer wall (121) has a bottom edge (126), the at least one profile (24 ') being fitted under the bottom edge in the final mounted position;
The fixing device according to claim 6. The band comprises at least one recess (23) in the outer wall (22);
The fixing device according to any one of claims 1 to 7. The at least one recess (23) is located at the same height as the at least one protruding profile (24) in the axial direction;
The fixing device according to claim 8. The at least one recess and the at least one protruding profile are formed in the form of an inwardly extending deformation of the band;
The fixing device according to claim 8 or 9, characterized in that. Further comprising a cap (5) comprising an inner protrusion (53) designed to fit into the at least one recess (23) of the band;
The fixing device according to any one of claims 8 to 10. The ring has an upper peripheral bushing (11) and a skirt (12) extending downward from the bushing, the skirt being formed with segments (123) separated by slots, each segment facing inwardly. At least one protruding fastening head (124) is formed, said at least one recess (114, 114 ') being formed at the height of the bushing;
The fixing device according to claim 1, wherein:   A method of mounting the fixing device according to claim 12 in an opening (41) of a reservoir (4), wherein the opening is provided with a fastening shoulder (43), The at least one protruding profile (24 ') until the retaining head (124) is fitted under the retaining shoulder (43) of the reservoir opening. The method of keeping the state fitted in ′).

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