FR2894790A1 - CONDITIONING AND DISPENSING DEVICE, IN PARTICULAR FOR A LOW-CONTAINER RESERVOIR - Google Patents

Abstract

The present invention relates to a dispensing head comprising: - a body (5) having a housing (8) of elongate shape along a longitudinal axis and in which opens at least one orifice (10) for the arrival of product, this orifice being surrounded a sealing relief (32) protruding into the housing (8), - a rotational dispensing member about the longitudinal axis of the housing, disposed at least partially in the housing, having an inlet port communicating with a dispensing orifice via a feed channel, the dispensing member being able to assume a first position in which the inlet orifice communicates with the inlet orifice (10) and a second position in which the inlet port is isolated from the inlet port (10).

Description

The present invention relates to the dispensing heads used for

  dispensing a fluid product, especially a liquid cosmetic product. The invention particularly relates to sample-type packaging and dispensing devices for spraying a perfume.

  Since sample type devices are generally not intended for sale, their cost of manufacture should be as low as possible. It is therefore important to have devices whose parts are easily achievable in large series and whose assembly can be performed in a simple manner. The invention more particularly relates to a dispensing head 10 comprising: - a body having a housing in which opens at least one product inlet, - a dispensing member has at least partially in the housing, having an orifice of inlet being able to communicate with a dispensing orifice 15 via a feed channel, the dispensing member being able to take a first position in which the inlet orifice communicates with the inlet orifice of the product and a second position in which the inlet port is isolated from the product inlet port. We know many distribution heads of this type. In US Pat. No. 6,267,304, the sealing between the dispensing member and the housing of the body in which it is received is obtained by clamping between annular surfaces facing the dispensing member and the body. The dispensing member comprises a relatively large diameter adjusting ring, so that the user can rotate the dispenser member without exerting excessive force. US Pat. No. 5,318,205 discloses another dispensing head wherein the seal is obtained in a similar manner. GB Patent 1,122,474 describes a dispensing head having a dispenser member which is rotatable about an axis of rotation perpendicular to that of the product inlet port 30 in the housing. An annular boss is formed around the product inlet port in the housing.

  US 6,390,341, US 2,717,726, US 4,763,801, US 3,863,818 and US 2003/0111493 disclose relatively similar dispensing heads. Furthermore, the European patent application EP 1 544 123 describes a dispensing head comprising at least two different distribution positions. This head comprises means for guiding the dispensing member in rotation, being in the form of housings having retracted upper openings. None of these prior patents disclose a dispensing head specially adapted to a sample type device. In the latter, the handling of the dispenser member must be able to be performed without excessive effort, given its generally small dimensions. Nevertheless, the dispensing member must be able on the one hand to ensure a tight closure of the device and on the other hand to allow the obtaining, if any, a spray of good quality to maintain attractiveness vis the product from which a sample has been given. The object of the invention is, according to its aspects, a dispensing head comprising: - a body having a housing of elongated shape along a longitudinal axis and in which opens at least one inlet port of product, this orifice being surrounded a protruding relief protruding into the housing, for example a boss, a rotary distribution member around the longitudinal axis of the housing, has at least partially in the housing, having an inlet port communicating with an orifice distribution means via a feed channel, the dispensing member being able to assume a first position in which the inlet port communicates with the inlet port and a second position in which the inlet port admission is isolated from the arrival port. The presence of the sealing protrusion protruding into the housing and surrounding the product inlet orifice locally improves the sealing around the inlet port of the product without generating a friction that is excessively large 1 rotational drive of the dispenser member by the user.

  In addition, the orientation of the dispensing member in the housing can facilitate obtaining sealing between annular surfaces opposite the dispenser member and the body.

  Finally, this orientation can further facilitate the attachment of the dispensing member on the body, especially when the device is of small dimensions. The invention makes it possible to benefit from a dispensing head having a dispenser member that can be relatively easily rotated while at the same time offering sufficient pressure to prevent product leakage in the closed position of the dispenser member. and, on the other hand, force the product to be dispensed through the dispensing orifice into the open position. The invention is particularly suitable A. the realization of a packaging and dispensing device comprising a dispensing head as defined above and a reservoir containing the product to be dispensed, having a small capacity, for example between 0, 5 and 15 ml, or between 1 and 5 ml. Another aspect of the present invention is, according to another of its aspects, a dispensing head comprising: a body having a housing of elongated shape along a longitudinal axis and into which at least one product inlet orifice opens, this orifice & cant surrounded by relief relief & protruding in the housing, - a rotational distribution member around the longitudinal axis of the housing, has at least partially in the housing, having an inlet port communicating with a port of distribution via a feed channel, the dispenser member being able to assume a first position in which the inlet port communicates with the inlet orifice and a second position in which the orifice The inlet is isolated from the inlet orifice, the axis of the dispensing orifice maintaining an invariant orientation during the rotation of the dispensing member relative to the body. The invention can make it possible to use a dispenser member of relatively small dimensions which is nevertheless easily operable by the user. The invention further relates, in another of its aspects, independently or in combination with the above, a dispensing head comprising: - a body having a housing in which opens at least one product inlet port, this orifice is surrounded by a protruding relief protruding from the housing, a rotating distribution member in the housing, and at least partially disposed therein, having an inlet orifice communicating with a dispensing orifice through Via a feed channel, the dispensing member being able to assume a first position in which the inlet orifice communicates with the product inlet port and a second position in which the orifice of intake is isolated from the inlet port of the product, means for guiding the dispensing member in rotation in the housing, means for centering at least a portion of the dispenser member adjacent to the housing; 'orifice product arriving, these centering means being separate guide means in rotation and being arranged to maintain the dispensing member bearing on the sealing relief all around the arrival port in the first and second positions of the dispenser member. The presence of the separate centering means of the rotational guiding means can make it possible to produce the body and / or the dispensing member with usual manufacturing tolerances while at the same time reducing the risk of leakage. The rotational guiding means are produced for example by giving the housing a cylindrical shape of revolution on a complete revolution in particular and over a portion at least of its length. The centering means can be made in a variety of ways. The body of the dispensing head may comprise an extension projecting into the housing and engaged in the dispenser member. This extension may comprise, for example, a tubular skirt, whose axis coincides with the axis of rotation of the dispensing member. The dispensing member may have a recess at one end opposite the dispensing orifice and the extension may be engaged in this recess. The recess can communicate with the supply channel connecting the distribution and intake ports. At least one of the dispensing member and the body may further comprise, in a variant or additionally, one or more supporting reliefs tending to hold the dispensing member in abutment on the sealing relief projecting from housing. The bearing relief or reliefs may be formed on the body.

  The body may in particular comprise at least two support reliefs disposed on either side of a plane containing the axis of the product inlet orifice in the housing. These two reliefs may be arranged symmetrically run ratite relative to said plane, especially a 120 run of another around the axis of the housing.

  The bearing relief or reliefs may comprise at least one flat. The relief or the reliefs can improve the concentration of the supports on a localized area, in particular on the relief of tightness planned around the orifice of arrival of the body. At least one of the housing and the dispensing member may comprise an annular ring and 1 other a groove in which the ring snaps.

  The presence of these rods and groove can improve the sealing by opposing a product passage between the product inlet port and the opening of the housing or the end of the supply channel opposite the orifice distribution, for example. In an exemplary embodiment of the invention, run at least the housing and the dispensing member has a rear groove and another a rear rush agency to snap into the rear groove, the rear groove and the rear rush being disposed between the bottom of the housing and the product inlet port. At least one of the housing and the dispenser member may comprise a front groove and another a front snap ring to snap into the front groove, and the front ring and the front groove being disposed between the opening of the housing and the product inlet port. Whatever the manner in which the housing is made, the dispensing member may comprise at least one operating member extending out of the housing. In an exemplary implementation of the invention, the operating member is connected to a wall of the dispensing member traversed by the dispensing orifice, in particular being molded in one piece with it. The actuating member may comprise a fin directed towards the rear, which may further reduce the size of the device and may make it possible to use the fin as a position indicator, the body may advantageously comprise molded indications associated with the first and second positions. The first and second positions may be angularly spaced more than 90, in particular about 120.

  The dispensing head may include mounting means on a reservoir containing a product to be dispensed. These mounting means may comprise fastening tabs arranged to snap on a neck of the tank. The dispensing head can be made with a sealing lip arranged to engage in the neck of the tank.

  The dispensing head may comprise a dressing skirt having a free edge not completely contained in a plane. The dispensing orifice may have dimensions chosen according to the nature of the product to be dispensed and the form in which this distribution must take place. The dispensing orifice may have a smaller diameter of between 0.1 and 1 mm, in particular of about 0.3 mm. The dispensing orifice may have a non-constant section, for example with at least one cylindrical portion and one conical portion. The dispensing orifice may comprise a cylindrical portion, then conical, then cylindrical and finally conical, towards the outlet.

  The invention further relates, in another of its aspects, independently or in combination with the above, a dispensing head comprising: - a body having a housing of elongated shape along an axis, an orifice of arrival of the product opening in this housing, - a dispensing member, movable, in the housing between a first dispensing position and a second closed position, the dispensing member having a product dispensing orifice and a feed channel allowing the product delivered through the inlet to reach the dispensing orifice when the dispensing member is in the first position, the feed channel extending in this first position longitudinally on the radially outer surface of the dispensing member, between the inlet orifice and the dispensing orifice. The invention also relates, independently or in combination with the above, to a dispensing head comprising: a body having a housing of elongated shape along an axis, an orifice for the arrival of the product emerging from this housing; movable dispensing member in the housing around the longitudinal axis thereof between a first dispensing position and a second closing position, the dispensing member having an actuating member comprising a fin 5 at least partially covering a wall of the body defining at least partially the housing. The body may comprise at least one molded indication to signal the user rune distribution and closure positions. The invention further relates, in another of its aspects, a packaging and dispensing device comprising: - a reservoir containing a product to be dispensed, - a dispensing head as defined above. The assembly may comprise a dip tube fixed & A. the dispensing head. The reservoir comprises for example at least one formable wall allowing the user to distribute the product by pressing on it. This wall may have a shape memory, the reservoir for example made at least partially in a plastic material & degradable. The reservoir may comprise a wall that is more rigid than the formable wall, on the opposite side of the latter. The invention also relates, independently or in combination with the above, to a test device comprising a spray head and a tank of capacity less than or equal to 15 ml, the reservoir comprising: a formable wall A. moire of form, - the cot & opposes this wall formable, a substantially rigid wall. The formable wall may be bent outward and the substantially rigid wall substantially planar. The presence of the rigid wall facilitates the deposition of the formable wall during use to pulverize the product. The stiffness of the substantially rigid wall can be related to its plane and to its junction with the formable wall of outwardly bent shape. The substantially rigid wall may be thicker, for example 1.5 times, than the formable wall.

  The invention will be better understood on reading the following detailed description, non-limiting examples of implementation thereof, and on examining the attached drawing, in which: FIG. 1 FIG. 2 shows the device of FIG. 4 is a longitudinal section, partial and schematic, of the device of FIG. 1, FIG. 5 is a similar view. FIG. 4, the dispensing member being removed, FIG. FIG. 7 is a partial, schematic cross-section along VII-VII of FIG. 6; FIG. 8 is a similar view A. FIG. 7 without FIG. distributing member; FIG. 9 is an enlarged scale of a detail of FIG. FIG. 10 is a similar view of FIG. 6 of an alternative embodiment, FIGS. 11A, 13 show, in longitudinal section, alternative embodiments of the dispensing head, and FIGS. Similar views A. Figure 4 variants of embodiment of the dispensing head, according to other aspects of the invention. There is shown in Figures 1 A. 4 a packaging and dispensing device 1 having a dispensing head 2 fixed on a reservoir 3 containing a product to be dispensed, for example a perfume. The reservoir 3 is for example made with a bearing face define by a wall 19 elastically deformable, which may be transparent. The reservoir 3 comprises a neck 13. The wall 19 of the reservoir may be formed of a thermoplastic material, in particular a polyethylene, a polypropylene, a polyester terephthalate, a polyethylene naphthalate, a polyacrylonitrile, a polyoxymethylene, a polyvinyl chloride, or a mixture of these materials.

  The wall 19 may have a substantially convex outer profile in its undeformed position, particularly in the form of a dome, and a substantially concave profile in its deformed position. This configuration facilitates the return of the wall 19 in its initial configuration when the pressure ceases.

  The reservoir 3 may have a face opposing A. the bearing surface which is substantially flat, for example, and may be defined by a wall 23 more rigid than the wall 19 and substantially non-deformable when the user presses the reservoir. The dispensing head 2 comprises a body 5 and a rotary distribution member 6 which can take a first closed position and a second distribution position. Referring to FIG. 5 in particular, it can be seen that the body 5 has a housing 8 having a longitudinal axis X, coinciding in the example considered with the axis of rotation of the dispensing member 6. The body 5 defines a product inlet port 10 which opens into the housing 8 and which communicates with a dip tube 11, which extends substantially to the bottom of the tank, as can be seen in Figure 1. In the example considered & the product inlet port 10 is of axis Y substantially perpendicular to the axis X. The body 5 comprises an annular ring 12 which Bert A. attaches to the plunger tube 11 and which is arranged to be applied in such a way that and sealing on the inner surface of the neck 13 of the reservoir 3. The fixing of the dispensing head 2 on the reservoir 3 is ensured in the example considered by tabs 14 which are snapped onto a bead 15 of the neck 13. The body 5 comprises a dressing skirt 16 which extends around the legs 14 and 25, the edge of which FIG. 17 is applied substantially against a base 18 A. The base of the neck 13, so that the outer surface of the trim skirt is inscribed in the continuity & the outer surface of the body of the tank. The dispensing member 6 comprises an X-axis tubular wall, closed at one end by a transverse wall 28 provided with an inlet orifice 20 which communicates permanently with a dispensing orifice 21, of axis X in The example illustrates, via a feed channel 22.

  The dispensing member 6 comprises an operating member 7 which allows the user to place the dispenser member 6 in the closed or dispensing position. In the example considered, this operating member 7 comprises a fin 26 which covers an outer wall 27 of the body 5, delimiting the upper housing 8. The fin 26 is connected A. the transverse wall 28 of the dispenser member 6, the assembly is advantageously made in one piece by molding thermoplastic material. The body 5 may have molded indicia 29, for example "1 and 0", against which the fin 26 may come to signal to the user the closing and dispensing positions. The product inlet orifice 10 is surrounded, as can be seen in FIG. 5 in particular, by a raised relief & such as a boss 32, which is applied against the dispensing member 6.

  This boss 32 makes it possible to reduce the bearing surface between the body 5 and the dispenser member 6 and makes it possible to obtain a seal without excessively controlling the rotation of the dispensing member 6. Advantageously, the dispenser head 2 comprises centering means of the dispensing member 6 to maintain the latter in support against the boss 32 over the entire primeratre thereof, whatever the angular position taken by the dispensing member 6. These means of centering may comprise, as illustrated, an extension 40 of the body 5 projecting into the housing 8 and engages in a recess 41 of the dispensing member 6.

  This recess 41 is formed in the example considered at the end of the dispensing member 6 which is opposed to the dispensing orifice 21 and communicates with the supply channel 22. The extension 40 is for example in the form of an X-axis tubular skirt, applying by its radially outer surface against the radially inner surface of the dispensing member 6 defining the discharge 41. The extension 40 may participate in the sealing, in this particular example.

  The centering means may additionally comprise, as can be seen in FIGS. 5 and 7, two bearing reliefs 45 arranged substantially symmetrically relative to one another with respect to a plane of symmetry P containing the Y axis and perpendicular at the X axis.

  The bearing reliefs 45 are for example in the form of flats when the housing 8 is viewed in cross-section, and cant oriented perpendicularly to the radii passing through the axis X and forming an angle α of 120 between them. The flats 45 extend axially substantially at the product inlet orifice 10 and can tangentially contact the dispensing member 6 to press it against the boss 32. In the example considered, the body 5 comprises in addition a front ring 50 and rear ring 51, respectively snapped into annular grooves 52 and 53 of the dispenser member 6. These rods can further improve 1 '& tach & it fixing the dispenser member 6 in the housing 8 and the rotation guide of the dispensing member 6 in the housing 8. The front ring 50 is located axially between the inlet port 10 and the opening 55 of the housing 8 and the rear ring 51 is located axially between the bottom 57 of the housing 8 and the arrival port 10.

  In the example shown, the lateral surface of the dispensing member 6 comprises an annular thickness 60 which is snapped into a corresponding annular groove 61 of the housing 8, which contributes to the axial retention of the dispensing member 6 in the housing 8. To use the device 1, the user rotates the dispensing member 6 of the closed position in which the inlet port 20 does not open on the arrival port 10 A. the distribution position shown A. Figure 4, wherein the axes of the inlet ports 10 and admission 20 coincide substantially. The user can then squeeze the formable wall 19 of the reservoir to force the product to flow through the dip tube and feed channel 22 to reach the dispensing orifice 21. The dip tube 11 may have an outlet port air 34.

  The dimensions of the dispensing orifice 21 can be chosen according to the nature of the product and according to the way in which it is desired to distribute it. In the example considered, the orifice 21 has, for example, a smaller diameter of 0.3 mm and the product is distributed while being sprayed.

  The section of the orifice may be non-constant, for example, before the exit, a cylindrical shape of revolution of 0.3 mm by 0.3 mm long, then widening conically A 0.6 mm on 0.5 mm long. The section can then be tubular 1.5 mm long and finally widen conically A. 1.7 mm.

  A section with at least one conical portion and preferably a succession of cylindrical and conical portions may facilitate obtaining a spray of good quality. When the user stops pressing on the deformable wall 19 of the tank, it can resume, by own elasticity, its original shape, this return may be accompanied by a return of air into the tank 3.

  Modifications may be made to the example just described without departing from the scope of the present invention. For example, as shown in FIG. 10, the dispensing head 2 can be made without the flat parts 45. The dispensing head 2 can be made without the extension 40, as shown in FIG. 11 or without the rushes. front and rear, as shown in FIG. 12. It is still possible to realize the distribution head 2 with only run of the rods before or behind, for example only the front ring 50, as shown in FIG. illustrated, the dispensing head may comprise only the extension 40, without the flats 45 and the rushes before and after.

  In other non-illustrated variants, the centering means of the dispenser member may comprise, for example, at least one bearing relief formed on a portion of the dispensing member 6 occupying for example substantially the same axial position as the inlet port 20 and the opposite side A. the latter or being distributed on either side axially of the inlet port, A. condition in these variants to maintain the sealing and that the reliefs of support do not come into contact with the sealing relief during use.

  In the variant embodiment illustrated in FIGS. 14 and 15, the dispensing orifice 21 is eccentric relative to the axis X and the supply channel 22 extends in the extension of the dispensing orifice 21 to another 80 end of the dispensing member 6, defining the passage of the intake port.

  The dispensing member 6 comprises at the end 80 a relief 70, for example protruding but which could be recessed and which cooperates with a complementary relief 71 of the body 5, centered on the axis X. The orifice 10 d product arrival may not be surrounded by a boss in this particular variant.

  Figures 16 A. 21 illustrate alternative embodiments according to other aspects of the invention. According to these aspects, the dispensing member 6 is not rotatable but movable in translation along its longitudinal axis. The dispensing member 6 can move between a first position in which the inlet port 20 is closed and a second position or it is arranged opposite the orifice 10 of product arrival. The latter may not be surrounded by a boss. The user can move the dispensing member 6 to bring it into the closed or dispensing position by pressing one of its ends.

  In the variants of Figures 18 and 19 on the one hand and 20 and 21 on the other hand, the dispenser member 6 comprises at one end a flange 90 which defines a bearing surface 91 for the user. The dispensing member 6 may initially be in the configuration of Fig. 18, and the user must exert a push on its front end to bring it into the position of Fig. 19 to dispense the product. In the variant shown in Figures 18 and 19, the dispensing member is made of a single piece. In the variant of FIGS. 20 and 21, the dispensing member 6 is no longer monolithic but forms by assembling two pieces 95 and 96, one piece 95 being made with the collar 90 and the other with a shoulder 98 holding the piece. the dispensing member 6 in the housing 8.

  The quantity of product contained in the tank may correspond to a single use, in which case it may not be necessary to return the dispensing member to the closed position after use. FIG. 22 shows an alternative embodiment in which the inlet channel is centered on the axis of rotation X of the dispensing member 6 and in which the inlet orifice 20 is in the form of a slit extending up to 1'extr & mt 80 of the dispensing member 6 opposite the dispensing orifice 21. The dispensing member 6 can be made with rods 100 and 101 which are snapped into corresponding annular grooves of housing 8.

  In the dispensing position, the inlet port 20 is located opposite the product inlet orifice 10 and in the closed position the outlet port 10 faces the tubular wall of the dispensing member 6. In this example, a sealing relief can be formed or not around the product inlet port. The dispensing member 6 comprises a maneuvering member 7 identical to those previously described. The bottom of the housing comprises a protruding relief 71 which cooperates with the dispensing member, as in the example of FIGS. 14 and 15. The expression comprising one must be understood as being synonymous with having at least one unless the opposite is true. is specified &. 20

Claims (30)

  1. dispensing head (1) comprising: - a body (5) having a housing (8) of elongate shape along a longitudinal axis (X) and in which opens at least one orifice (10) of arrival of product, orifice being surrounded by a sealing relief (32) protruding into the housing (8), a distribution member (6) rotatable about the longitudinal axis (X) of the housing, has at least partially in the housing, comprising a an inlet (20) communicating with a dispensing orifice (21) via a feed channel (22), the dispensing member (6) being able to assume a first position in which the orifice the inlet (20) communicates with the inlet port (10) and a second position in which the inlet port (20) is isolated from the inlet port (10).   2. Dispensing head according to claim 1, the axis of the dispensing orifice (21) maintaining an invariant orientation during the rotation of the dispensing member (6) relative to the body (5).   3. Dispensing head according to one of claims 1 and 2, comprising means (61) for rotational guidance of the dispenser member and centering means (40; 45; 71) of a portion of at least 1 ' distributing member adjacent to the product inlet (10), for holding the dispensing member (6) in abutment with the sealing relief (32) all around the orifice (10) of arrival of product in the first and second positions.   4. Dispensing head according to any one of the preceding claims, the body (5) having an extension (40) projecting into the housing (8) and engages in the dispensing organ (6).   5. Dispensing head according to the preceding claim, the extension (40) having a tubular skirt, of axis coincides with daxe (X) of rotation of the dispenser member. 30   6. dispensing fair according to the preceding claim, the dispensing member having a recess (41) has an end opposed to the dispensing orifice (21) and 1'extension (40) being engaged in this recess.   7. Dispensing head according to the preceding claim, 1'evidement (41) communicating with the supply channel (22).   8. Dispensing head according to any one of the preceding claims, funnel at least of the dispensing member (6) and the body (5) having one or more support reliefs (45) tending to maintain the dispensing member in bearing on the sealing relief (32) projecting into the housing (8).   9. Tate distribution according to the preceding claim, the bearing or reliefs (45) being formed on the body (5).   10. Dispensing head according to the preceding claim, the body comprising at least two bearing reliefs (45) disposed on either side of a plane (P) containing the axis (Y) of the orifice (10). ) arrival of product in the housing.   11. Tate distribution according to the preceding claim, the two bearing reliefs (45) being arranged symmetrically Pun de 1'other relative to said plane (P), especially 120 other around the axis (X) of the housing (8). ).   12. Tate distribution according rune any of claims 9 to 11, the relief or reliefs (45) comprising at least one meplat.   13. Dispensing head according to any one of the preceding claims, at least one of the housing (8) and the dispensing member (6) having an annular ring (52; 53) and 1a throat (50; 51) in which snap the rush.   14. Dispensing head according to any one of the preceding claims, at least one of the housing and the dispensing member having a rear groove (51) and 1 other a rear rod (53) arranged to snap into the rear groove, the with the rear groove and the rear rod being disposed between the bottom of the housing and the inlet (10) for the arrival of product, and at least one of the housing and the dispenser having a front groove (52) and another a front snap ring to snap into the front groove, the front ring and the front groove being disposed axially between the opening (55) of the housing and the orifice (10) of product arrival.   15. The dispensing head according to any one of the preceding claims, the dispensing organ (6) having at least one operating member (7) extending out of the housing.   16. Tate distribution according to the preceding claim, 1'emene maneuvering (7) connecting to a wall (28) through which the dispensing orifice (21), in particular being molded in one piece with it.   17. Tate distribution according to one of two immediately preceding claims, the actuating member (7) having a fin (26) directed rearwardly.   18. Dispensing head according to any one of the preceding claims, the first and second positions being angularly spaced by more than 90, in particular about 120.   19. The dispensing head according to any one of the preceding claims, the body (5) having indications (29) integrally molded, associated with the first and second positions.   20. Tate distribution according to rune any of the preceding claims, comprising mounting means on a reservoir (3) containing a product to be dispensed. 15   21. Tate distribution according to the preceding claim, the mounting means having fastening lugs (14) arranged to snap on a neck of the tank.   22. Dispensing tee according to any one of the preceding claims, comprising a sealing lip (12) arranged to engage in a neck (13) of the tank.   23. The dispensing head according to any one of the preceding claims, the dispensing orifice (21) having a smaller diameter of between 0.1 and 1 mm, in particular about 0.3 mm.   24. The dispensing bowl according to any one of the preceding claims, comprising a dressing skirt (16) having a free edge (17) not completely contained in a plane.   25. A packaging and dispensing assembly comprising: - a reservoir (3) containing a product to be dispensed; - a dispensing head (2) as defined in any one of the preceding claims.   26. An assembly according to the preceding claim, comprising a dip tube (11) fixed to the dispensing head.   27. An assembly according to rune of claims 25 and 26, the reservoir comprising at least one deformable wall (19) allowing the user to distribute product by pressing it.   28. The assembly of claim 27, the reservoir having a wall (23) more rigid than the deformable wall (19), the opposite side thereof.   29. The assembly according to rune of claims 25 to 27, the capacity of the reservoir being between 1 and 15 ml.   30. Dispensing head according to claim 1, the dispensing member comprising an actuating member (7) comprising a fin (26) at least partially covering a wall of the body (5) defining at least partially the housing.