ARRANGEMENT WITH A BOTTLE, A DECORATIVE CAP AND SYSTEM FOR ATTACHING THE DECORATIVE CAP TO THE BOTTLE

Description

TECHNICAL FIELD

[0001] The present invention relates to the general field of bottles for dispensing liquid products, such as creams. The invention concerns an assembly comprising a bottle with a neck, an aesthetic collar positioned around the neck, and a fastening system that secures the aesthetic collar to the neck. PREVIOUS STATE OF THE ART

[0002] Currently, there are assemblies that include a bottle with a dispensing mechanism, such as a pump operated by a user's hand.

[0003] To hide the neck of the bottle and part of the dispensing mechanism, it is known to place an aesthetic band around the neck.

[0004] For aesthetic reasons, in particular, in the context of the distribution of cosmetic products of the beauty product type, it is known to use bottles whose neck has a rectangular section.

[0005] In order to fix the aesthetic fret to the neck, the latter is surmounted by a rim which ensures the attachment of the aesthetic fret to the neck.

[0006] Documents FR-A-3 019 528, FR-A-2 565 799 and FR-A-3 071 388 disclose prior art assemblies.

[0007] Although such an arrangement gives good results, the external dimensions of the aesthetic fret are relatively large to encompass the rim and the means of attaching the aesthetic fret to the rim. DESCRIPTION OF THE INVENTION

[0008] An object of the present invention is to provide an assembly comprising a bottle with a neck, an aesthetic collar which is positioned around the neck and a fastening system which ensures the attachment of the aesthetic collar to the neck, where the fastening system has a particular shape allowing a reduction of thicknesses around the neck.

[0009] To this end, an assembly with a vertical orientation and comprising is proposed: a bottle comprising a hollow body and a neck at the top of the hollow body, where the outer perimeter of the neck takes the form of a rectangle with four rounded corners, where at each corner and along the height of the neck, said neck is divided into a lower part extending upwards from the hollow body and an upper part extending upwards from the lower part, where at each corner, the lower part has an indentation to form a shoulder under the upper part, an aesthetic collar comprising a first plate through which a first window passes and a first outer skirt extending downwards from the outer periphery of the first plate, where the aesthetic collar is positioned on the neck, and a fastening system comprising: a second plate through which a second window passes and positioned between the upper part of the neck and the first plate of the aesthetic collar,four lugs attached to the second plate, where each lug is positioned under one of the neck shoulders, and fastening means that secure the aesthetic fret to said fastening system.

[0010] With such an arrangement, the fastening system has a particular shape allowing for a reduction in thickness around the collar.

[0011] Advantageously, the aesthetic fretboard includes a cover which has a third plate crossed by a third window and positioned between the first plate and the second plate and a first inner skirt which extends downwards from the edge of the third window through the second window.

[0012] According to a particular embodiment, the fastening means take the form of an internal clamping means which is disposed along the edge of the second window and which clamps the first inner skirt.

[0013] Advantageously, the cover includes a second outer skirt attached to the third tray and extending downwards from the outer periphery of the third tray, and the attachment means also consist of a tight fit between the first outer skirt and the second outer skirt.

[0014] Advantageously, the fastening means include an external clamping means arranged around the second plate and which rubs against the inner face of the first outer skirt.

[0015] Advantageously, the internal clamping means takes the form of a hollow truncated cone, the large base of which is fixed to the second plate, and the small base of which extends downwards from the large base and delimits a circle into which the first inner skirt is inserted, where the internal clamping means takes the form of internal teeth originating from the second plate and distributed around the second window extending inwards so that the end of each internal tooth rubs against the inner face of the first inner skirt and grips the first inner skirt.

[0016] According to a particular embodiment, the cover comprises a second outer skirt attached to the third tray and extending downwards from the outer periphery of the third tray, and the attachment means consist of a tight fit between the first outer skirt and the second outer skirt.

[0017] Advantageously, the assembly includes anti-fluttering means which ensure pressure of the fastening system against the aesthetic fret and against the outside of the neck.

[0018] According to a particular embodiment, the anti-fluttering means take the form of anti-fluttering tabs, where each is attached to the second platform and projects downwards and outwards to be supported by one of its faces against the inner face of the first outer skirt and by the other of its faces against the outside of the collar.

[0019] According to a particular embodiment, the cover comprises a second outer skirt attached to the third plate and extending downwards from the outer periphery of the third plate, and the anti-flutter means take the form of curved walls, each curved wall having on an outer face, a groove which extends parallel to the vertical direction along the second outer skirt and on an inner face a bulge which extends parallel to the vertical direction along the second outer skirt, in each groove is inserted a rib of the first outer skirt provided for this purpose and where each groove exerts pressure on the rib and each bulge exerts pressure against the outside of the neck.

[0020] Advantageously, the assembly includes retaining means intended to clamp at least one of a reservoir or a dispensing mechanism integral with said reservoir when they are arranged in the bottle.

[0021] Advantageously, the means of support take the form of a plurality of reliefs made at the level of the first inner skirt of the cover and distributed around the third window where each relief extends inside said third window and comes to rest against the distribution mechanism.

[0022] Advantageously, the retaining means take the form of retaining tabs attached to the second tray and distributed inside the second window, where each retaining tab extends inside the third window and rests against the reservoir.

[0023] Advantageously, the assembly includes centering means which ensure the centering of the hanging system relative to the orifice.

[0024] Advantageously, the centering means comprise at least three centering tabs distributed around the vertical direction, attached to the second plate, where each centering tab is arranged so that in the assembled position, it is positioned at an angle against the edge of the orifice. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The features of the invention mentioned above, as well as others, will become clearer upon reading the following description of an exemplary embodiment, said description being made in relation to the accompanying drawings, among which: there Fig. 1 is a perspective view of an assembly according to the invention, the Fig. 2 is an exploded perspective view of the bottle of the Fig. 1 according to a first embodiment of the invention, the Fig. 3 is a cross-sectional view according to plane III of the Fig. 1 for the first embodiment of the invention, the Fig. 4 is a cross-sectional view according to plane IV of the Fig. 1 for the first embodiment of the invention, the Fig. 5 is an exploded perspective view of the bottle of the Fig. 1 according to a second embodiment of the invention, the Fig. 6 is a cross-sectional view according to plane III of the Fig. 1 for the second embodiment of the invention, the Fig. 7 is a cross-sectional view according to plane IV of the Fig. 1 for the second embodiment of the invention, the Fig. 8 is an exploded perspective view of the bottle of the Fig. 1 according to a third embodiment of the invention, the Fig. 9 is a cross-sectional view according to plane III of the Fig. 1 for the third embodiment of the invention, the Fig. 10 is a view from below of the aesthetic fret of the third embodiment of the invention. DETAILED EXPLANATION OF IMPLEMENTATION METHODS

[0026] There Fig. 1 shows an assembly 10 according to the invention. This assembly 10 comprises a bottle 102, an aesthetic collar 104 and a dispensing mechanism 106 which here takes the form of a manual pump activated by a user's hand and which plunges into a reservoir (120, Fig. 3 ).

[0027] In the following description, terms relating to a position are taken with reference to an assembly 10 in its normal operating position, that is, as shown on the Fig. 1 In the following description, and by convention, Z is called the vertical direction.

[0028] There Fig. 2 Figure 100 shows the assembly according to a first embodiment of the invention, in which the aesthetic fret 104 has been raised. Fig. 5 shows assembly 200 according to a second embodiment of the invention, in which the aesthetic fret 104 has been raised. The Fig. 8 shows the assembly 300 according to a third embodiment of the invention, in which the aesthetic fret 104 has been raised.

[0029] THE Figs. 3 et 4 They show cross-sections of assembly 100 according to the first embodiment. Figs. 6 et 7 show cross-sections of assembly 200 according to the second embodiment. Figs. 9 et 10 show details of the assembly 300 according to the third embodiment.

[0030] In the three embodiments of the invention, the aesthetic fret 104 comprises a first plate 104a which extends horizontally and which is crossed by a first window 104b through which passes the distribution mechanism 106 and a first outer skirt 104c extending downwards from the outer periphery of the first plate 104a, i.e. the outer edge of the first plate 104a.

[0031] The bottle 102 comprises a hollow body 112 and a neck 114 which is integral with and located at the top of the hollow body 112. The neck 114 defines an opening 110 providing access to the interior of the hollow body 112, through which passes the dispensing mechanism 106, which is connected to the reservoir 120 housed within the hollow body 112. The reservoir 120 can contain any type of liquid product, such as a cream, and the dispensing mechanism 106 is designed to draw the liquid product from the reservoir 120 and dispense it externally through a hole 122 provided for this purpose. The dispensing mechanism 106 is not described further, as it is not directly relevant to the invention and can take various forms known to those skilled in the art.

[0032] In the plane of orifice 110, which is perpendicular to the vertical direction Z, the outer perimeter of the neck 114 takes the form of a rectangle with rounded corners, and more specifically, a square with rounded corners. In the description, orifice 110 and the various windows described above and below are coaxial with the vertical direction Z.

[0033] At each corner and along the height of the collar 114, said collar 114 is divided into a lower part 114a and an upper part 114b. The lower part 114a extends upwards from the hollow body 112 and the upper part 114b extends upwards from the lower part 114a.

[0034] At each corner, the lower portion 114a has an inward recess 116, meaning that the upper portion 114b overhangs the recess 116, thus defining a shoulder beneath the upper portion 114b. The recess 116 is present only at the corners, which reduces the thickness of the neck 114 between two corners. The angular extent around the vertical direction Z of the recess 116 is, for example, 20° on either side of the corner.

[0035] In the assembled position, the aesthetic fret 104 is positioned on the neck 114 and the first outer skirt 104c descends to the hollow body 112.

[0036] The assembly 100, 200, 300 also includes a fastening system 108, 208, 308 that secures the aesthetic collar 104 to the neck 114 of the bottle 102 and takes different forms depending on the embodiment. In the assembled position, the fastening system 108, 208, 308 is housed inside the aesthetic collar 104.

[0037] The hanging system 108, 208, 308 includes a second platform 108a, 208a, 308a which extends horizontally and is crossed by a second window 108b, 208b, 308b through which passes the distribution mechanism 106 and four lugs 108c, 208c, 308c ( Fig. 9 ) attached to the second plate 108a, 208a, 308a. The second window 108b, 208b, 308b and the first window 104b are aligned with the orifice 110.

[0038] In the assembled position, the 108, 208, 308 attachment system is placed between the neck 114 and the aesthetic fret 104 so that the second plate 108a, 208a, 308a is located between the upper part 114b of the neck 114 and the first plate 104a of the aesthetic fret 104.

[0039] Each lug 108c, 208c, 308c is arranged so that in the assembled position, it is positioned under one of the shoulders of the collar 114, i.e. in one of the recesses 116, to ensure the attachment of the hooking system 108, 208, 308 to the collar 114. Each lug 108c, 208c, 308c is oriented perpendicular to the vertical direction Z and inwards.

[0040] The hanging system 108, 208, 308 also includes hanging means 150, 250, 350 which ensure the fixing of the aesthetic fret 104 to said hanging system 108, 208, 308.

[0041] Thus, by ensuring the attachment of the hanging system 108, 208, 308 to the collar 114 only in the corners of the collar 114, it is possible to create extra thicknesses of the collar 114 only in the corners, thus reducing the thickness of the collar 114 between the corners for better integration, particularly in the case of a hollow body 112 with a rectangular or even square cross-section.

[0042] In the first and second embodiments of the invention, the attachment system 108, 208 is preferably made by means of a folded metal spring plate.

[0043] In the third embodiment, the 308 attachment system consists of a molded plastic part.

[0044] To hide, among other things, the 108, 208, 308 attachment system, each aesthetic fret 104 has a cover 109, 209, 309 which is positioned under the first platform 104a and inside the lugs 108c, 208c, 308c.

[0045] The cache 109, 209, 309 has a third tray 109a, 209a, 309a which is positioned between the first tray 104a and the second tray 108a, 208a, 308a and which is crossed by a third window 109b, 209b, 309b through which passes the distribution mechanism 106 and a first inner skirt 109c, 209c, 309c which extends downwards from the inner periphery of the third tray 109a, 209a, 309a, i.e. from the edge of the third window 109b, 209b, 309b thus delimiting a well from the third window 109b, 209b, 309b. The third window 109b, 209b, 309b and the first window 104b are aligned with the orifice 110.

[0046] In the first and second embodiments of the invention, the cover 109, 209 is an additional piece to the aesthetic fret 104 and in the third embodiment of the invention, the cover 309 is monobloc with the attachment system 308.

[0047] In this last embodiment, the third plate 309a corresponds to the second plate 308a and the third window 309b corresponds to the second window 308b.

[0048] The first inner skirt 109c, 209c, 309c is positioned through the second window 108b, 208b, 308b and inside relative to the lugs 108c, 208c, 308c so that the hook system 108, 208, 308 and the lugs 108c, 208c, 308c cannot be seen in particular when the tank 120 and the dispensing mechanism 106 are removable and removed by pulling through the windows.

[0049] In the first and third embodiments of the invention, the cover 109, 309 also includes a second outer skirt 109d, 309d attached to the third plate 109a, 309a and extending downwards from the outer periphery of the third plate 109a, 309a, i.e., the outer edge of the third plate 109a, 309a. The second outer skirt 109d, 309d is applied against the inner face of the first outer skirt 104c to reinforce the connection between them.

[0050] In the first embodiment of the invention, the fastening means 150 take the form of an internal clamping means 151, which is positioned along the edge of the second window 108b and clamps the first inner skirt 109c. The fastening means 150 are further secured by a tight fit between the first outer skirt 104c and the second outer skirt 109d. The dimensions of the internal clamping means 151 and the first inner skirt 109c are such that the first inner skirt 109c is press-fitted into the internal clamping means 151. If necessary, the fastening can also be completed by gluing the aesthetic trim 104 and the cover 109.

[0051] The internal clamping means 151 here takes the form of a truncated cone 151, which is hollow and forms the edge of the second window 108b. The truncated cone 151 has a large base integral with the second plate 108a and a smaller base extending downwards from the large base, defining a circle into which the first inner skirt 109c is inserted. The dimensions of the circle and the first inner skirt 109c are such that the first inner skirt 109c is press-fitted into the circle. In another embodiment, the internal clamping means 151 can take the form of internal teeth extending from the second plate 108a and extending inwards such that the tip of each internal tooth rubs against the outer face of the first inner skirt 109c.Due to the friction of the inner teeth against the outer face of the first inner skirt 109c, each inner tooth bends and exerts a force and each inner tooth thus grips in the first inner skirt 109c.

[0052] In the second embodiment of the invention, the fastening means 250 comprise an external clamping means 253 disposed around the second plate 208a and which rubs against the inner face of the first outer skirt 104c.

[0053] In the second embodiment, the external clamping means 253 takes the form of external teeth 253 extending from the second plate 208a and distributed around it. Each external tooth 253 extends outwards so that the end of each external tooth 253 rubs against the inner face of the first external skirt 104c and, as before, grips the first external skirt 104c.

[0054] Although the use of the external clamping means 253 is described in the second embodiment, it can be implemented for the first embodiment to interact with the inner face of the second outer skirt 109d and / or the inner face of the first outer skirt 104c.

[0055] In the third embodiment of the invention, the attachment means 350 consist of a tight fit between the first outer skirt 104c and the second outer skirt 309d. If necessary, the attachment can also be supplemented by gluing the aesthetic collar 104 and the cover 309.

[0056] As with the first embodiment, the fastening means 250 of the second embodiment of the invention here comprise an internal clamping means 251 which is disposed along the edge of the second window 208b and which clamps the first inner skirt 209c. In the embodiment presented in the Fig. 5 The internal clamping means 251 takes the form of internal teeth 251 extending from the second plate 208a and distributed around the second window 208b. Each internal tooth 251 extends inwards such that the tip of each internal tooth 251 rubs against the inner face of the first internal skirt 209c and grips the first internal skirt 209c. In another embodiment, the internal clamping means 251 can take the form of a truncated cone, as in the first embodiment.

[0057] To prevent the aesthetic collar 104 from fluttering relative to the mounting system 108, 208, 308, particularly around the vertical Z-axis, the assembly 100, 200, 300 includes anti-flutter means 130, 230, 330 that ensure pressure from the mounting system 108, 208, 308 against the aesthetic collar 104. Furthermore, in the embodiments shown in the Figs. 4 , 7 And 10 , the anti-flutter means 130, 230, 330 also ensure pressure of the fastening system 108, 208, 308 against the outside of the collar 114, and more particularly on the upper part 114b of the collar 114.

[0058] In the first and second embodiments of the invention, the anti-fluttering means 130, 230 take the form of anti-fluttering tabs 130, 230, where each is attached to the second plate 108a, 208a and projects, here from the outer periphery of the second plate 108a, 208a, downwards and outwards to be supported by one of its faces against the inner face of the first outer skirt 104c and by the other of its faces against the outside of the neck 114 and more particularly here against the upper part 114b of the neck 114. There are here four anti-fluttering tabs 130, 230 distributed around the vertical direction Z.

[0059] In the first embodiment of the invention, each anti-flutter tab 130 comes to rest against the inner face of the first outer skirt 104c by passing under the second outer skirt 109d.

[0060] In the third embodiment of the invention, the anti-flutter means 330 take the form of curved walls 330 which here constitute a part of the outer skirt 309d. Each curved wall 330 has on an outer face, a groove which extends parallel to the vertical direction Z along the second outer skirt 309d and on an inner face a bulge which extends parallel to the vertical direction Z along the second outer skirt 309d and which here constitutes the bottom of the groove.

[0061] In each groove is inserted a rib 1002 of the first outer skirt 104c provided for this purpose and where each groove exerts pressure on the associated rib 1002 in a direction generally perpendicular to the vertical direction Z. There are two grooves per side of the aesthetic fret 104.

[0062] At the same time, each bulge exerts pressure against the outside of the neck 114 and more particularly the upper part 114b of the neck 114.

[0063] To hold the reservoir 120 when it is placed in the bottle 102, the assembly 100, 200, 300 includes retaining means 126, 226, 326 which clamp at least one of the reservoir 120 or the dispensing mechanism 106 integral with said reservoir 120.

[0064] In the embodiment of the invention presented here, the reservoir 120 is removable, for example, for filling or replacement. The reservoir 120 and the dispensing mechanism 106 are fixed together and can be removed through the various openings. In the embodiment of the invention presented here, the reservoir 120 and the dispensing mechanism 106 are secured to each other by screwing them together via a threaded hole 124.

[0065] In the first and third embodiments of the invention, the retaining means 126, 326 take the form of a plurality of reliefs 126, 326 made at the level of the first inner skirt 109c, 309c of the cover 109, 309 and distributed around the third window 109b, 309b where each relief 126, 326 extends inside said third window 109b, 309b and comes to rest against the distribution mechanism 106.

[0066] In the second embodiment of the invention, the retaining means 226 take the form of retaining tabs 226 attached to the second plate 208a and distributed inside the second window 208b, where each retaining tab 226 extends inside the third window 209b and rests against the reservoir 120.

[0067] Depending on the length of the first inner skirt 209c, the retaining tabs 226 pass under the first inner skirt 209c or through the first inner skirt 209c by means of openings 220 made for this purpose through said first inner skirt 209c.

[0068] In the first embodiment of the invention, the assembly 100 includes centering means 140 that ensure the centering of the attachment system 108 with respect to the orifice 110. In the embodiment of the Figs. 2 à 4, the centering means 140 comprise at least three centering tabs 140 distributed around the vertical direction Z, attached to the second plate 108a, here to the outer periphery of the second plate 108a, where each centering tab 140 is arranged so that in the assembled position, it is positioned at an angle against the edge of the orifice 110. Each centering tab 140 thus extends from the top where it is attached to the second plate 108a downwards and from the outside inwards.

Claims

1. Assembly (10, 100, 200, 300) having a vertical direction (Z) and comprising: - a bottle (102) comprising a hollow body (112) and a neck (114) at the top of the hollow body (112), where the external perimeter of the neck (114) takes the form of a rectangle with four rounded corners, - an aesthetic band (104) comprising a first plate (104a) through which a first window (104b) passes and a first external skirt (104c) extending downwards from the external periphery of the first plate (104a), where the aesthetic band (104) is positioned on the neck (114), and - an attachment system (108, 208, 308) comprising: - a second plate (108a, 208a, 308a) through which a second window (108b, 208b, 308b) passes and positioned between the top part (114b) of the neck (114) and the first plate (104a) of the aesthetic band (104), and - attachment means (150, 250, 350) that provide the securing of the aesthetic band (104) to said attachment system (108, 208, 308), the assembly (100) being characterized in that at each corner and over the height of the neck (114), said neck (114) divides into a bottom part (114a) extending upwards from the hollow body (112) and a top part (114b) extending upwards from the bottom part (114a), where, at each corner, the bottom part (114a) has an inward recess (116) to form a shoulder under the top part (114b), and in that attachment system (108, 208, 308) comprises four lugs (108c, 208c, 308c) secured to the second plate (108a, 208a, 308a), where each lug (108c, 208c, 308c) is positioned under one of the shoulders of the neck (114).

2. Assembly (100) according to claim 1, characterized in that the aesthetic band (104) comprises a cover (109, 209, 309) that comprises a third plate (109a, 209a, 309a) which has passing through it a third window (109b, 209b, 309b) and positioned between the first plate (104a) and the second plate (108a, 208a, 308a) and a first internal skirt (109c, 209c, 309c) that extends downwards from the edge of the third window (109b, 209b, 309b) through the second window (108b, 208b, 308b).

3. Assembly (100, 200) according to claim 2, characterized in that the attachment means (150, 250) take the form of an internal clamping means (151, 251) that is disposed along the edge of the second window (108b, 208b) and grips the first internal skirt (109c, 209c).

4. Assembly (100) according to claim 3, characterized in that the cover (109) comprises a second external skirt (109d) secured to the third plate (109a) and extending downwards from the external periphery of the third plate (109a) and in that the attachment means (150) also consist of a tight fit between the first external skirt (104c) and the second external skirt (109d).

5. Assembly (200) according to claim 3, characterized in that the attachment means (250) comprise an external clamping means (253) disposed around the second plate (208a) and which rubs against the internal face of the first external skirt (104c).

6. Assembly (100, 200) according to one of claims 3 to 5, characterized in that the internal clamping means (151) takes the form of a hollow truncated cone (151) a large base of which is secured to the second plate (108a) and a small base of which extends downwards from the large base and delimits a circle where the first internal skirt (109c) is inserted, or the internal clamping means (251) takes the form of internal teeth (251) issuing from the second plate (208a) and distributed around the second window (208b) while extending inwards so that the end of each internal tooth (251) rubs against the internal face of the first internal skirt (209c) and grips in the first internal skirt (109c).

7. Assembly (300) according to claim 2, characterized in that the cover (309) comprises a second external skirt (309d) secured to the third plate (309a) and extending downwards from the external periphery of the third plate (309a) and in that the attachment means (350) consist of a tight fit between the first external skirt (104c) and the second external skirt (309d).

8. Assembly (100, 200, 300) according to one of claims 1 to 7, characterized in that it comprises anti-floating means (130, 230, 330) that provide pressure of the attachment system (108, 208, 308) against the aesthetic band (104) and against the outside of the neck (114).

9. Assembly (100, 200, 300) according to claim 8, characterized in that the anti-floating means (130, 230) take the form of anti-floating tongues (130, 230), where each is secured to the second plate (108a, 208a) and projects downwards and outwards to be in abutment through one of its faces against the internal face of the first external skirt (104c) and through the other one of its faces against the outside of the neck (114).

10. Assembly (300) according to claim 8 depending of claim 2, where the cover (309) comprises a second external skirt (309d) secured to the third plate (309a) and extending downwards from the external periphery of the third plate (309a), in that the anti-floating means (330) take the form of cambered walls (330), in that each cambered wall (330) has, on an external face, a groove that extends parallel to the vertical direction (Z) along the second external skirt (309d) and on an internal face a camber that extends parallel to the vertical direction (Z) along the second external skirt (309d), in that in each groove a rib (1002) on the first external skirt (104c) provided for this purpose is inserted, and where each groove (330) exerts a pressure on the rib (1002), and in that each camber exerts a pressure against the outside of the neck (114).

11. Assembly (100, 200, 300) according to one of claims 1 to 10, characterized in that it comprises holding means (126, 226, 326) intended to grip at least one out of the reservoir (120) or a dispensing mechanism (106) secured to said reservoir (120) when they are disposed in the bottle (102).

12. Assembly (100, 300) according to claim 11 depending of claim 2, characterized in that the holding means (126, 326) take the form of a plurality of reliefs (126, 326) produced at the first internal skirt (109c, 309c) of the cover (109, 309) and distributed around the third window (109b, 309b), where each relief (126, 326) extends inside said third window (109b, 309b) and comes into abutment against the dispensing mechanism (106).

13. Assembly (200) according to claim 11, characterized in that the holding means (226) take the form of holding tongues (226) secured to the second plate (208a) and distributed inside the second window (208b), where each holding tongue (226) extends inside the third window (209b) and comes into abutment against the reservoir (120).

14. Assembly (100) according to one of claim 1 to 13, characterized in that it comprises centring means (140) that provide the centring of the attachment system (108) with respect to the orifice (110).

15. Assembly (100) according to claim 14, characterized in that the centring means (140) comprise at least three centring tongues (140) distributed around the vertical direction (Z), secured to the second plate (108a), where each centring tongue (140) is arranged so that, in the assembled position, it is positioned aslant against the edge of the orifice (110).