Fluid product dispenser

Abstract

The invention relates to a fluid product dispenser comprising: - at least two reservoirs (R1, R2) each provided with a pump (P1, P2) comprising a valve spindle (P12, P22) that is moveable back and forth along an axis X; - a common connecting end piece (1) comprising inlet sleeves (11, 12), flexible ducts (15, 16) and an outlet hole (10), the inlet sleeves (11, 12) being mounted on the valve spindles (P12, P22), the inlet sleeves (11, 12) being connected to the outlet hole (10, by the ducts (15, 16); - a common push member (4) comprising a dispensing opening (43) connected to the outlet hole (10), the push member (4) being moveable back and forth along the axis X, the invention being characterised in that the common connecting end piece (1) is formed of two parts connected to one another in a leak-tight manner along a bond line that extends perpendicular to the axis X.

Description

[0001] Fluid product dispenser

[0002] The present invention relates to a fluid dispenser comprising at least two reservoirs each equipped with a pump comprising a valve stem movable back and forth along an X axis. The dispenser also incorporates a common connection end piece comprising inlet sleeves mounted on the valve stems, the inlet sleeves being connected by conduits to an outlet well. The dispenser also incorporates a common pusher comprising a dispensing orifice connected to the outlet well, the pusher being movable back and forth along the X axis, carrying with it the common connection end piece and the two valve stems. This is a completely conventional design for a dispenser delivering a mixture of fluid products and is commonly referred to as a duo dispenser. Trio versions, or even more, also exist.

[0003] In general, the two reservoirs are separated from each other and held in place by a common part forming two receiving housings, respectively for the necks of the two reservoirs. In this case, the center distance (horizontal distance) and the angle of attitude (mutual axial positioning) of the two valve stems are fixed by the common part and the other parts of the distributor are adapted to the center distance and the attitude thus determined. The two valve stems are located at the same axial height or at least a fixed mutual axial position and their center distance is known.

[0004] The situation is different when the mutual positioning of the two tanks is imposed by other parameters, in particular direct contact between the two tanks. This is all the more problematic with glass tanks, whose tolerances are particularly important.

[0005] Let's take the example of two glass tanks, each forming a body and a neck. We already know that there is a significant tolerance at the neck, particularly with regard to its height relative to the body. By assembling these two tanks by direct contact between their bodies, for example by gluing, we understand that the mutual position of the two necks can vary, both in terms of center distance and trim. And in the case where the bodies have complex shapes with complex mutual contact surfaces, the tolerance in terms of center distance and trim increases even further. We can thus end up with a batch of glued tanks with center distance and trim differences of several tenths of a millimeter, or even more than a millimeter.

[0006] We then understand that the assembly of a distribution assembly on this pair of tanks will be very complicated.

[0007] Individual mounting of pumps on necks by a crimping technique would seem theoretically possible, but encounters two distinct problems.

[0008] The first is related to the fact that the center distance between the necks of this type of joined tanks is often small, so that the crimping head is hindered by the proximity of the other neck. Crimping is then simply impossible in practice. This problem could in theory be overcome by crimping the two tanks before gluing them together, but this would require filling them beforehand, which is not usual in assembly processes.

[0009] The second problem, when the first does not arise, lies in the fact that the common tappet will act in an unbalanced manner on the two valve stems, due to the lack of seating. In addition, the variations in center distance complicate, or even prevent, the assembly of the common connecting end piece on the valve stems and / or the assembly of the tappet on the common end piece.

[0010] Individual mounting of the pumps on the necks by means of rings blocked by frets leads to the same disadvantages as mounting by crimping.

[0011] Mounting the pumps on the necks by means of rings locked by a common part forming the hoops creates an additional disadvantage due to the fact that the center distance of the hoops will not correspond with the variable center distance of the necks. Thus, in all cases, it is complicated, if not impossible, to mount a conventional distribution head on a pair of associated tanks whose reference for the center distance and the plate is not fixed on the upper annular edge of the necks. This is especially true for glass tanks, but certainly also to a lesser extent for tanks made of other materials, such as plastic.

[0012] The present invention aims to remedy the various drawbacks of the prior art by defining a distributor which adapts to the defects in the center distance and position of the tank necks.

[0013] To do this, the present invention proposes a dispenser of fluid products comprising:

[0014] - at least two tanks each equipped with a pump comprising a valve rod movable back and forth along an X axis,

[0015] - a common connection end piece comprising inlet sleeves, flexible conduits and an outlet well, the inlet sleeves being mounted on the valve stems, the inlet sleeves being connected to the outlet well by the conduits,

[0016] - a common pusher comprising a distribution orifice connected to the outlet well, the pusher being movable back and forth along the X axis, characterized in that the common connection end piece consists of two parts attached to each other in a sealed manner along a junction plane which extends perpendicular to the X axis.

[0017] Thus, the common end piece is made of only two pieces, while retaining the necessary flexibility. The flexibility or flexibility or deformability or resilience of the conduits in the axial and radial directions makes it possible to adapt the common connecting end piece to valve stems of different center distance and angle. The inlet sleeves can move apart or closer together by deformation of the conduits, both axially (angle) and radially (center distance). On the other hand, the outlet well, which is located between the two inlet sleeves, advantageously halfway between them, undergoes only very little movement, or even no movement at all. Preferably, the common connecting end piece may comprise a base piece forming the two inlet sleeves and a cover piece forming the outlet well, the conduits being formed jointly by the base and cover pieces. The two pieces may be made of polypropylene or polyethylene.

[0018] According to one embodiment of the invention, the conduits may be substantially rigid but curved, so as to provide acceptable deformability. This means that the conduits can accept variations in center distance and / or attitude under the action of a relatively low stress. The deformation capacity comes from the combination of the relative rigidity or flexibility of the chosen material and the naturally deformable geometry, in the desired directions, of the curved shape. In practice, polypropylene or polyethylene may be used to make the conduits, and even the common connecting end piece in its entirety. The conduits may thus each have a C-shaped configuration.

[0019] By giving the conduits a C-shape, the common connecting end piece can have an S-shape, with an inlet sleeve at each end of the S and the outlet shaft in the center of the S. Thus, the inlet sleeves and the outlet shaft are aligned, with a C-shaped conduit on each side of the line, thus forming an S. It is easily understood that this S-shape provides increased elastic deformation capacity, while keeping its center substantially or perfectly fixed. The S-shape can deform in the plane where the S is inscribed, but also along the axis perpendicular to this plane.

[0020] According to another characteristic of the invention, the common connecting end piece may comprise nipples which extend in the axial extension of the inlet sleeves in the direction of the common tappet, caps being more or less axially engaged on these nipples depending on the mutual axial position (angle of adjustment) of the inlet sleeves, these caps being arranged at an identical axial position, these caps coming into contact with the common tappet. The more or less deep engagement of the caps on or in the nipples makes it possible to compensate for a lack of adjustment of the valve stems. For example, one can imagine a right valve stem which is located axially higher than the left valve stem. In this case, the right cap is more engaged on or in the right nipple than the left cap is on or in the left nipple. This is the case when the caps are located at the same axial height (zero angle of adjustment).It is also possible to consider arranging the caps with a constant axial offset between them, which is independent of the alignment defects of the nipples.

[0021] According to a practical embodiment, the nipples and the caps may comprise profiles which come into greater or lesser material interference depending on the greater or lesser or weaker axial engagement of each cap on its respective nipple. For example, one or more vertical ribs of the cap may be envisaged which come into punch an annular reinforcement of the nipple, or vice versa.

[0022] In practice, the final positions of the caps on their respective nipples can be achieved by maximum depression which can be achieved in the factory, for example by a piston on the assembly machine.

[0023] It should be noted that the implementation of nipples and caps can be done independently of the flexibility of the conduits, so that individual protection could be sought for this characteristic. Functionally, the nipples cooperating with the caps fulfill a function of means of compensating for the lack of seating of the valve stems, and more generally of the tank necks.

[0024] According to yet another feature of the invention, the dispenser further comprises fixing rings and locking hoops, the pumps being mounted on the reservoirs by means of the fixing rings, which are held in place by the locking hoops axially engaged around the fixing rings, the locking hoops being connected together while being movable relative to each other, so that the mutual position of the two locking hoops is adaptable depending on the mutual position of the two fixing rings. According to one embodiment of the invention, the locking hoops can be formed in a single piece by a hoop piece, which defines at least one flexible connection between the two locking hoops.

[0025] According to another embodiment of the invention, a hoop piece may define at least one insertion housing, in which a locking hoop is slidably received. Advantageously, the insertion housing comprises sliding ribs and the locking hoop comprises sliding grooves cooperating with the sliding ribs to guide the locking hoop away from / towards the other locking hoop. Preferably, the locking hoop is initially connected to the hoop piece by a bridge of material to be broken.

[0026] It should be noted that the implementation of such common hoop parts (with two locking hoops connected together in a single piece by at least one flexible connection or with one or two sliding locking hoops) can be done independently of the flexibility of the ducts, so that individual protection could be sought for this characteristic. Functionally, these locking hoops fulfill a function of means of compensating for variation in the center distance of the tank necks.

[0027] According to another aspect of the invention, the common pusher can slide axially in a cap which is mounted on the common hoop part, the cap advantageously defining a window in which the dispensing orifice of the common pusher is housed. Thus, the common hoop part serves as a support for the cap, the lower edge of which can abut on the reservoirs, for example at a shoulder formed jointly by the two reservoirs. In more detail, the hoop part can comprise at least two mounting areas for the cap, these mounting areas being connected to the locking hoops in a single-piece manner by flexible connections. Preferably, the mounting areas are rigid, the mutual position of the mounting areas in a plane perpendicular to the X axis being practically insensitive to variations in the mutual position of the fixing rings in a plane perpendicular to the X axis.We can also imagine a two-part design for the fret piece: an inner part in the shape of an 8 forming the two frets and an outer crown attached to the 8-shaped piece and which would receive an aesthetic cover.

[0028] Advantageously, the two reservoirs, preferably made of glass, are in contact with each other, so that their mutual position depends on this mutual contact. Although this characteristic is at the basis of the problem of the invention, it can serve to distinguish the dispenser of the invention.

[0029] The invention will now be more fully described with reference to the accompanying drawings, giving by way of non-limiting example, an embodiment of the invention.

[0030] In the figures:

[0031] Figure 1 is a perspective view of a fluid dispenser according to the invention,

[0032] Figure 2 is an enlarged vertical cross-sectional view through the dispenser of Figure 1,

[0033] Figure 3 is an exploded perspective view of the dispenser of Figures 1 and 2,

[0034] Figure 4 is a perspective and vertical sectional view of a portion of the dispenser of Figures 1 to 3,

[0035] Figure 5 is an exploded perspective view of a portion of the dispenser of Figures 1 to 3,

[0036] Figure 6 is a view similar to Figure 5 with a different viewing angle,

[0037] Figure 7a is a perspective view of the hoop part of the dispenser of the invention,

[0038] Figure 7b is a top view of the fret piece of Figure 7a,

[0039] Figure 8a is a greatly enlarged perspective view of the common connection end piece of the distributor of the invention,

[0040] Figure 8b is an exploded perspective view of the tip of Figure 8a,

[0041] Figure 9 is a very greatly enlarged view of a cap of the distributor of the invention, Figures 10a, 10b and 10c are schematic perspective views illustrating a hoop part according to a second embodiment of the invention, in different assembly phases, and

[0042] Figure 11 is a vertical cross-sectional view through the hoop piece of Figures 10a, 10b and 10c, being fitted to the pump mounting rings.

[0043] The dispenser used to illustrate the present invention is a duo-type dispenser, comprising two fluid reservoirs R1 and R2 as well as two dispensing members, two pumps P1 and P2. A dispenser with three reservoirs and three pumps, or even more, could also have been used to illustrate the present invention.

[0044] In Figures 1 to 3, it can be immediately noticed that the two reservoirs R1, R2 are in direct contact with each other at two contact surfaces R11 and R21. These two surfaces R11 and R21 extend here in a vertical plane, but it is also possible to imagine that these two surfaces are inclined or even curved. The two contact surfaces R11 and R21 can be connected to each other by any suitable technique, such as for example by gluing with any suitable material, such as an adhesive, enamel, sol gel, etc. Of course, this type of connection can cause more or less pronounced offsets between the two reservoirs. We can thus speak of mutual position tolerance of the reservoirs R1 and R2.

[0045] At their upper part, the reservoirs R1 and R2 each form a shoulder segment R12, R22 which together form a more or less contiguous annular shoulder depending on the mutual position tolerance of the reservoirs. Beyond these shoulder segments, each reservoir R1, R2 forms a plate segment R13, R23 which together form a substantially contiguous plate depending on the mutual position tolerances of the two reservoirs. From these plate segments, each reservoir forms a neck R14, R24 which projects upwards. The horizontal distance or center distance between the two necks R14 and R24 may vary depending on the manufacturing tolerance of the necks, but also depending on the mutual position tolerance of the two reservoirs R1 and R2. The same applies to the axial positioning or attitude at the upper annular edges of the two necks R14 and R24.A trim defect can thus be observed depending on the manufacturing tolerances of the necks, but also depending on the mutual tolerance of the two tanks due to the intimate contact between the surfaces R11 and R21.

[0046] Therefore, it is impossible to guarantee a constant center distance and a zero trim angle between the two necks R14 and R23. We can therefore speak of a center distance defect or tolerance and a trim angle or trim defect or tolerance. These defects or tolerances obviously come from the mutual positioning of the two tanks, the reference of which is located at the level of the two contact surfaces R11, R21. Traditionally, these tolerance defects do not exist when the reference frame is placed at the level of the upper annular edge of the two tank necks. Thus, we can say that in general we encounter this center distance and trim defect or tolerance, as soon as the reference frame is not placed at the level of the upper annular edges of the two tank necks. The mutual contact of the two tanks at the level of the contact surfaces R11, R21 is only one example among others which generates this center distance and / or trim defect or tolerance.

[0047] It is thus admitted that on a batch of sets of attached tanks, the center distance and the plate are not constant. This suggests the difficulties in mounting the upper assembly of the distributor. However, the present invention makes it possible to reduce, or even eliminate, this difficulty of mounting and operation, as will be seen below.

[0048] Starting from this set of adjoining reservoirs R1 and R2, the first assembly step consists of mounting the two pumps P1 and P2 on and in the necks R14 and R24. The particular type of pump is not critical to the invention and will therefore not be described in detail. Very briefly, each pump P1, P2 comprises a pump body P11, P21, as well as a valve rod P12, P22 which is axially movable in its respective pump body P11, P21 back and forth against a return spring. This is quite conventional for a pump in the fields of perfumery, cosmetics, or even pharmacy. To ensure sealing at the R14 and R24 necks, neck seals J1 and J2 can be used, which are engaged around the P11 and P21 pump bodies which form a collar allowing the J1 and J2 seals to be crushed onto their respective necks.To hold the pumps P1, P2 in place, fixing rings B1 and B2 are used, each of which forms the attachment tabs B11 and B21, which engage around the necks R14, R24, in a completely conventional manner.

[0049] For locking the hooking tabs B11, B21 of the two fixing rings B1, B2, a hoop part 3 is provided according to the invention, which is more visible in Figures 6, 7a and 7b. This hoop part 3, which is preferably produced in a single piece by injection molding of suitable plastic material, comprises a mounting ring 35, which is here cylindrical and annular. However, other configurations can be imagined making it possible to define at least one mounting area, and advantageously two opposite areas, which are connected to each other or separated. In the case of the mounting ring 35, it can be said that two mounting areas are connected continuously to form only one extended mounting area. Inside this mounting ring 35, the hoop part 3 defines two areas 351, arranged diametrically opposite.Between these two areas 351, the hoop part 3 comprises two locking hoops 31 and 32, respectively for the two fixing rings B1 and B2. These locking hoops 31, 32 are in the form of cylindrical collars adapted to come into tight engagement around the hooking tabs B11 and B21 of the two fixing rings B1 and B2. The two locking hoops 31, 32 are connected to each other by a common wall 312, such that the two hoops 31 and 32 can move relative to each other so as to modify their center distance and / or their attitude. Furthermore, it can be noted that the two locking hoops 31 and 32 are connected to the two areas 351 by several flexible connections 38, here eight in number.It is then easily understood that the two locking hoops 31 and 32 can move inside the mounting ring 35, and even relative to each other, both axially and radially, so as to modify their center distance and / or their attitude. It can thus be said that the locking hoops 31 and 32 are mounted in a “floating” manner inside the mounting ring 35. Obviously, the degree of freedom of movement of the two hoops 31 and 32 is limited to a few tenths of a millimeter, or even one millimeter. It can also be imagined that in the case of a larger center distance of the tanks, the two hoops 31 and 32 are not connected to each other, but perfectly detached from each other. The common wall 312 would then be eliminated and the two hoops 31, 32 could be connected to the two areas 351 by flexible connections. Alternatively, the two separate frets could be mounted in the mounting ring 35.

[0050] In this way, it is possible to mount the hoop part 3 on the two fixing rings B1, B2 by engaging the locking hoops 31 and 32 around the hooking tabs P11 and P21. In the final mounting position, the lower edge of the mounting crown 35 can come into abutment on the shoulder formed by the shoulder segments R13 and R23, while the two locking hoops 31 and 32 can be positioned with a center distance and / or attitude defect, thanks to the flexible connections 38 and the common wall 312.

[0051] Advantageously, each locking hoop 31, 32 is provided with an axial guide sleeve 33, 34 which is supported by two lugs 36 and 37. More precisely, the lugs 36 extend in a diametrically opposite manner from the upper edge of the locking hoop 31, each forming an inward bend to join the axial guide sleeve 33. The same is true for the locking hoop 32: the lugs 37 extend in a diametrically opposite manner from the upper edge of the hoop 32, forming an bend to join the axial guide sleeve 34. Thus, each axial guide sleeve 33, 34 is in the form of a small turret which is suspended above its locking hoop 31, 32 by pairs of bent lugs 36, 37. Each sleeve extends coaxially with its locking hoop.

[0052] As can be seen in Figure 2, the valve stems P11 and P22 extend axially inside the guide bushings 33 and 34. But since the guide bushings 33 and 34 are positioned relative to their respective necks, the bushings 33 and 34 are perfectly positioned relative to the valve stems P11 and P22. In other words, the locking rings and the axial guide bushings are positioned with the same center distance and attitude defect as the necks R14 and R24.

[0053] According to the invention, the distributor implements a common connection end piece 1, which is more visible in Figures 8a and 8b. This end piece 1 comprises two inlet sleeves 11 and 12, intended to be fitted or fitted onto the free ends of the two valve stems P11 and P22. The end piece 1 also comprises an outlet well 10 which extends between the two sleeves 11 and 12. The outlet well 10 is advantageously arranged halfway between the two sleeves 11 and 12. The latter are connected to the outlet well 10 by two conduits 15 and 16, which have the characteristic of being flexible, so that the center distance and / or the attitude of the two sleeves 11 and 12 can vary by deformation of the conduits 15 and 16, while leaving the outlet well 10 substantially static, due to its axial central positioning. Ducts 15 and 16 are flexible, but with a limited degree of deformation. They are made of a substantially rigid material, but with a curved configuration.It can be said that each conduit 15, 16 has a C-shaped configuration, so that the nozzle 1 as a whole has an S-shaped configuration. If a line is drawn passing through the two sleeves 11, 12 and the outlet well 10, it can be said that the conduit 15 extends on one side of this line while the conduit 16 extends on the other side of this line. Alternatively, the two conduits 15 and 16 could be on the same side of the line and form an E.

[0054] Referring to Figure 8b, it can be seen that the common connecting end piece 1 comprises two parts, namely a base part 1a forming the two inlet sleeves 11 and 12 and a cover part 1b forming the outlet well 10. The conduits 15 and 16 are formed by assembling the two parts 1a and 1b. More precisely, the base part 1a forms two chutes 15a and 16a which connect the inlet sleeves 11 and 12 to a well base 10a. As for the cover part 1b, it forms two covers 15b and 16b which connect sleeve covers 11b and 12b to a well cover 10b. Once the cover part 1b is attached in a sealed manner to the base part 1a, the sleeves 11 and 12 are closed by the sleeve covers 11b and 12b, the outlet shaft 10 is closed by the shaft cover 10a and the flexible conduits 15 and 16 are formed by the covers 15b and 16b attached to the chutes 15a and 16a, respectively.It can be seen that the joining line of the two parts 1a and 1b extends horizontally, i.e. in a plane perpendicular to the axis of the pumps. The two parts 1a and 1b can be simply snapped onto each other or glued or welded.

[0055] The common connecting end piece 1 is thus mounted on the valve stems P11, P22 by fitting the inlet sleeves 11 and 12, and this regardless of the center distance and / or position defect of the valve stems. The inlet sleeves 11 and 12 accommodate these center distance and / or position tolerance defects by deformation of the conduits 15 and 16, while maintaining the outlet well 10 in a substantially static manner.

[0056] Advantageously, each inlet sleeve 11, 12, or more precisely its cover 11b, 12b, is provided with a stud 13, 14 which extends axially. It can be said that the studs 13, 14 extend axially upwards in the extension of the sleeves 11 and 12. Thus, the outlet well 1 is arranged halfway between these two studs 13 and 14. Preferably, the studs 13 and 14 comprise a base 131, 141 of increased diameter.

[0057] According to the invention, the distributor also comprises two caps 21 and 22 which are engaged on the nipples 13 and 14, respectively. The caps 21 and 22 are engaged more or less deeply around the nipples 13 and 14 depending on the defect or offset in the attitude of the two nipples 13 and 14, as well as depending on the desired offset in the attitude of the caps. For a zero attitude angle offset of the caps 21, 22, and a stud 13 which extends higher axially than the stud 14, the cap 21 will be engaged more deeply around the stud 13 than the cap 22 around the stud 14. The more or less pronounced engagement of the caps 21, 22 on their respective stud 13, 14 can be ensured by punching the ribs 23 formed inside the caps 21, 22 on the bases of increased diameter 131 and 141 of the studs 13 and 14.Similarly, the caps 21, 22 can also be mounted on the pins 13, 14 with a non-zero attitude angle, i.e. with one cap higher than the other.

[0058] Ultimately, the center distance defect is absorbed by the deformation capacity of the conduits 15 and 16 and the attitude defect is absorbed by the more or less deep engagement of the caps 21 and 22 on their respective pins 13 and 14. Ultimately, there is an outlet well 10 which is centered and a zero attitude reference surface formed by the aligned upper wall of the two caps 21 and 22.

[0059] According to the invention, the dispenser also comprises a pusher 4 forming a central sleeve 40 engaged with the outlet well 10 of the nozzle 1. This central sleeve 40 is connected to a dispensing orifice 43, which may be lateral. The pusher 4 also comprises a support disc 41 which comes into contact with the caps 21 and 22. The pusher 4 of course defines an upper support surface 42 on which the user can press axially to move it. The pusher 4 advantageously comprises a substantially cylindrical guide skirt 45 allowing axial sliding movement of the pusher 4.

[0060] The dispenser of the invention also comprises a cover 5 defining a wide upper opening 50 for receiving the pusher 4. At its opposite end, the cover 5 forms a lower annular edge 51 intended to engage with the shoulder R12, R22 of the two reservoirs. To hold the cover 5, its lower part 52 is engaged around the mounting ring 35 of the hoop part 3. This is visible in Figure 2. Retaining profiles can be formed at the mounting ring 35 and / or the lower part 52 of the cover 5. The cover 5 also forms a lateral window 53 for the passage of the dispensing orifice 43 of the pusher 4.

[0061] Referring again to Figure 2, it is now understood that the pusher 4 is guided axially by sliding of its guide skirt 45 inside the cover 5. This ensures that the pusher 4 does not suffer from any misalignment. The final position of the two caps 21 and 22 on their respective studs 13 and 14 can be achieved in the factory during assembly of the dispenser, for example by means of a piston of the assembly machine. This piston makes it possible to position the two caps 21 and 22 with a predetermined misalignment angle, which may or may not be zero. Rectifying the misalignment during factory assembly allows the pusher 4 to deliver the predefined volume of the two liquids in a repeatable manner.

[0062] Then, the distributor can be used in a completely conventional manner by pressing the pusher 4 so as to push it inside the cover 5. The movement of the pusher 4 causes the valve stems P11 and P22 to move in their respective pump bodies P11, P21 via the connecting sleeves 11, 12, the pins 13, 14 and the caps 21, 22. The perfectly axial movement of the sleeves 11 and 12 is ensured by the axial guide bushes 33 and 34.

[0063] It should be noted that the common connection end piece 1 can be implemented on pumps P1 and P2 which are fixed on the necks R14, R24 by other mounting means than the fixing rings B11, B21 and the hoop part 3. For example, it is possible to imagine mounting the pumps on the necks by crimping or even by screwing. Conversely, it is possible to implement the hoop part 1 without the common connection end piece 1. However, their cumulative implementation is advantageous.

[0064] Preferably, reservoirs R1 and R2 are made of glass, but other suitable materials may be used.

[0065] Instead of the two caps 21 and 22, it can be provided that the inlet sleeves 11 and 12 are more or less engaged on the valve stems P11 and P22, the support disc 41 of the pusher 4 then coming to bear directly on the common connection end piece. This variant, not shown, makes it possible to eliminate the two caps 21 and 22.

[0066] Referring now to Figures 10a, 10b, 10c and 11, a second embodiment can be seen for the hoop part, which is referenced 3'. This hoop part 3', unlike that 3 of the first embodiment, forms only one of the two locking hoops, in this case the hoop 32', the other hoop 31' being a part which is attached to the hoop part 3'. However, it is not excluded that the hoop 31' is molded in a single piece with the hoop part 3', being connected by a bridge of material to be broken 315'. Referring to Figure 10a, it is seen that the hoop piece 3' forms the hoop 32', the mounting crown 35' and the lands 351', just like the hoop piece 3. In contrast, the hoop piece 3' further forms an insertion housing 311' which is laterally accessible through an access passage 312', which is located just below the crown 35', opposite to where the hoop 32' touches the crown 35'.The housing 31 T comprises at least one pair of sliding ribs 313', which are arranged in a parallel and opposite manner. The housing 311' may for example comprise two parallel and opposite planar walls 311 a, adjacent to the access passage 312' and a semi-cylindrical bottom wall 311 b, which connects the two planar walls 311 a. The sliding ribs 313' extend horizontally on the planar walls 311 a and may terminate at the semi-cylindrical bottom wall 311 b.

[0067] The locking band 31' may be in the form of a cylindrical sleeve, the outer wall of which forms two sliding grooves 314', which are arranged parallel and opposite. The band 31', which may initially be connected to the band piece 3' by the break bridge 315', may be detached from the band piece 3', and then inserted into the housing 311' of the band piece 3' through the access passage 312'. This can be seen in Figure 10b. The sliding grooves 314' of the hoop 31' will engage in the sliding ribs 313' of the housing 31T. From then on, the hoop 31' is secured to the hoop part 3', while being able to slide in the housing 311', towards or away from the hoop 32'. The sliding axis of the hoop 31' extends diametrically through the hoop 32'.

[0068] Without departing from the scope of the invention, it is possible to envisage producing the fret 32' in the same way as the fret 31', so that the fret piece would then form two insertion housings.

[0069] The hoop piece 3', with its sliding hoop 31', can be mounted on the fixing rings B1, B2 of the pumps P1, P2, as shown in figure 11. The hoop 31' will move in its housing 311' according to the spacing of the rings B1, B2, the center distance of which depends on the spacing of the necks of the two tanks.

[0070] Thanks to the invention, the center distance and / or trim defects at the level of the tank necks are compensated.

Claims

Claims Distributor of fluid products including: - at least two reservoirs (R1, R2) each equipped with a pump (P1, P2) comprising a valve stem (P12, P22) movable back and forth along an X axis, - a common connecting end (1) comprising inlet sleeves (11, 12), flexible conduits (15, 16) and an outlet well (10), the inlet sleeves (11, 12) being mounted on the valve stems (P12, P22), the inlet sleeves (11, 12) being connected to the outlet well (10, by the conduits (15, 16), - a common pusher (4) comprising a distribution orifice (43) connected to the outlet well (10), the pusher (4) being movable back and forth along the X axis, characterized in that the common connecting end (1) is made up of two parts (1a, 1b) attached one on top of the other in a sealed manner along a junction plane which extends perpendicularly to the X axis. Distributor according to claim 1, in which the common connecting end (1) comprises a base part (1a) forming the two inlet sleeves (11, 12) and a cover part (1b) forming the outlet well (10), the flexible conduits (15, 16) being formed jointly by the base part (1a) and the cover part (1b).Distributor according to claim 2, wherein the base part (1 a) forms two chutes (15a, 16) which connect the inlet sleeves (11 , 12) to a well base (10a), the cover part (1 b) forms two covers (15b, 16b) which connect sleeve covers (11 b, 12b) to a well cover (10b), such that once the cover part (1 b) is attached in a sealed manner to the base part (1 a), the sleeves (11 , 12) are closed by the sleeve covers (11 b, 16). 12b), the outlet well (10) is closed by the well cover (10a) and the flexible conduits (15,16) are formed by the covers (15b, 16b) attached to the chutes (15a, 16a), respectively.

4. Distributor according to claim 1, 2 or 3, in which the conduits (15, 16) are substantially rigid but curved, so as to confer limited deformability.

5. Distributor according to any one of the preceding claims, wherein the conduits (15, 16) each have a C-shaped configuration.

6. Distributor according to any one of the preceding claims, in which the common connecting end (1) comprises nipples (13, 14) which extend in the axial continuation of the inlet sleeves (11, 12) towards the common pusher (4), the distributor further comprising caps (21, 22), which are more or less axially engaged on these nipples (13, 14) depending on the mutual axial position of the inlet sleeves (11, 12), these caps (21, 22) being arranged in an identical axial position, these caps (21, 22) coming into contact with the common pusher (4).

7. Distributor according to claim 6, wherein the nipples (13, 14) and the caps (21, 22) comprise profiles (131, 141, 23) which come more or less in material punching depending on the greater or lesser axial engagement of each cap (21, 22) on its respective nipple (13, 14).

8. Distributor according to any one of the preceding claims, further comprising fixing rings (B1, B2) and locking rings (31, 32; 31', 32'), the pumps (P1, P2) being mounted on the tanks (R1, R2) by means of the fixing rings (B1, B2), which are held in place by the locking rings (31, 32; 31', 32') Axially engaged around the retaining rings (B1, B2), the locking rings (31, 32; 31, 32') are connected together while remaining movable relative to each other, such that the mutual position of the two locking rings (31, 32; 31', 32') is adaptable according to the mutual position of the two retaining rings (B1, B2). A distributor according to claim 8, wherein the locking rings (31, 32) are formed as a single piece by a ring piece (3) which defines at least one flexible connection (38, 312) between the two locking rings (31, 32). A distributor according to claim 8, wherein a ring piece (3') defines at least one insertion recess (311'), into which a locking ring (31') is slidably received.Distributor according to claim 10, wherein the insertion housing (311') comprises sliding ribs (313') and the locking ring (31') comprises sliding grooves (314') cooperating with the sliding ribs (313') to guide the locking ring (31') away from / towards the other locking ring (32'). Distributor according to claim 10 or 11, wherein the locking ring (31') is initially connected to the ring piece (3') by a bridge of material to be broken (315'). Distributor according to any one of claims 8 to 12, wherein each locking ring (31, 32) is provided with an axial guide bushing (33, 34) for the axial guidance of the valve stems (P12, P13, P ...

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