EP0452196B1 - Assembly for dispensing at least one liquid product or cream - Google Patents

Assembly for dispensing at least one liquid product or cream Download PDF

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Publication number
EP0452196B1
EP0452196B1 EP91400917A EP91400917A EP0452196B1 EP 0452196 B1 EP0452196 B1 EP 0452196B1 EP 91400917 A EP91400917 A EP 91400917A EP 91400917 A EP91400917 A EP 91400917A EP 0452196 B1 EP0452196 B1 EP 0452196B1
Authority
EP
European Patent Office
Prior art keywords
valve
unit according
container
seat
dispensing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP91400917A
Other languages
German (de)
French (fr)
Other versions
EP0452196A1 (en
Inventor
Jean-Louis Gueret
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LOreal SA
Original Assignee
LOreal SA
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Filing date
Publication date
Application filed by LOreal SA filed Critical LOreal SA
Publication of EP0452196A1 publication Critical patent/EP0452196A1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D35/00—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor
    • B65D35/14—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor with linings or inserts
    • B65D35/20—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor with linings or inserts for retracting contents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/20—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/20—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge
    • B65D47/2018—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/20—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge
    • B65D47/2018—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure
    • B65D47/2031—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure the element being formed by a slit, narrow opening or constrictable spout, the size of the outlet passage being able to be varied by increasing or decreasing the pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/20—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge
    • B65D47/2018—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure
    • B65D47/2056—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure lift valve type
    • B65D47/2062—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure lift valve type in which the deformation raises or lowers the valve stem
    • B65D47/2068—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure lift valve type in which the deformation raises or lowers the valve stem in which the stem is lowered by the pressure of the contents and thereby opening the valve
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/20—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge
    • B65D47/26—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge with slide valves, i.e. valves that open and close a passageway by sliding over a port, e.g. formed with slidable spouts
    • B65D47/261—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge with slide valves, i.e. valves that open and close a passageway by sliding over a port, e.g. formed with slidable spouts having a rotational or helicoidal movement
    • B65D47/263—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge with slide valves, i.e. valves that open and close a passageway by sliding over a port, e.g. formed with slidable spouts having a rotational or helicoidal movement between tubular parts

Definitions

  • the present invention relates to a dispensing assembly of at least one liquid product or in the form of a cream according to the preamble of claim 1.
  • This assembly is particularly advantageous for dispensing cosmetic or pharmaceutical products.
  • Dispensing assemblies of this type generally consist of a container containing at least one product to be dispensed, on the neck of which is fixed, removably or not, a dispensing head and, optionally, a device allowing the user to actuate said dispensing head.
  • the distribution head comprises at least one distribution channel for the product communicating, on the one hand, with the aforementioned container and, on the other hand, with the outside.
  • FR-A 2 650 255 a distribution assembly comprising, at the end of at least one channel of the distribution head opening to the outside, a closure system formed by a shutter in elastic material which cooperates with a seat in tight contact when there is no distribution, said shutter moves away from the seat by elastic deformation under the pressure of the product to be dispensed and returns by elasticity in tight contact with the seat, when it ceases the distribution.
  • This closing system requires that the shutter and the seat are in contact on a surface large enough to ensure sealing.
  • Such a closure system is aseptic, which is advantageous, in particular, in the case where products which are degradable or which do not contain preservatives are distributed; but, for many products such as, for example, sunscreens, such asepsis is not necessary.
  • Said closure system is also used with advantage when the assembly comprises a container constituted by a flexible tube or deformable pocket or by a container comprising a follower piston requiring an absence of air intake. But, in the case where an air intake is necessary, it is necessary to provide the dispensing head with an air intake valve in addition to the aseptic closure system, because said closure system does not allow the air intake; we thus lose the benefit of simplicity since we are forced to use two valves.
  • US-A 4,314,658 describes a liquid distribution assembly, corresponding to the preamble of claim 1, comprising a distribution head comprising a distribution channel closed at its end by a closure device comprising a flexible valve deformable by elasticity under product pressure and cooperating at rest in a leaktight manner with a base.
  • the valve is not likely to take a particular position, different from the dispensing and rest position. To allow rapid air intake, it is therefore necessary that the seal between the valve and its base is weak and there are, therefore, risks of product leakage or accidental contamination. It should be noted that the passage from the dispensing position to that of rest is too brief to allow air to be taken up.
  • EP-A 0 111 798 describes an assembly comprising a closing device comprising two flexible lips and a device making it possible to avoid any involuntary distribution of product during transport or other handling.
  • valve systems comprising two lips generally have a seal which is not total but which is high and that the air intake which can take place during their passage from the rest position to the dispensing position is generally not sufficient. It is therefore necessary to wait a very long time for the pressure outside the container and that inside the container to equalize thanks to the fact that the lips are not tight.
  • the present invention relates to a valve system, which makes it possible both to ensure the distribution and the return of air but which nevertheless avoids the introduction into the product, during its distribution or during storage, of accidental soiling , for example sand for sunscreen.
  • This protection has the advantage of being carried out automatically after the distribution of the product, without any particular gesture by the user being necessary.
  • the subject of the present invention is a dispensing assembly for at least one liquid or cream product, comprising a container and a dispensing head, said dispensing head comprising at least one dispensing channel closed at its end, s' opening towards the outside by a closing device comprising a flexible valve deformable by elasticity under the thrust of the product to be dispensed and cooperating at rest with a base, characterized in that the valve cooperates non-tightly in the rest position with a fixed rigid base, said valve moving away from said base by elastic deformation under the thrust of the product to be dispensed, then putting itself, when the dispensing of the product ceases, in a position different from the rest position allowing the air intake , which is located inside the dispensing head relative to the fixed rigid base.
  • the valve sufficiently closes the end of the distribution channel to prevent accidental penetration of impurities, but that, the valve cooperating in leaktight manner with the base, the air intake is possible .
  • the assembly according to the invention may also include, upstream of the closing device, a valve device making it possible to cut the communication between the container and the closing device.
  • This device makes it possible to transport the assembly without risk of accidental leakage of product, but it is generally not necessary to use it between two successive uses of the assembly.
  • the valve in the rest position, the valve cooperates edge to edge with the base, the valve moving away from said base towards the outside of the dispensing head, under the thrust of the product to be dispensed, then towards the inside of the dispensing head, in a space provided for this purpose, to allow the air intake when the dispensing stops and finally returning to its rest position, when the air intake is finished.
  • the valve and the base being in edge-to-edge contact, that is to say on a contact zone determined by the thickness of the valve or the base, the contact zone at rest is very weak and therefore there is no tightness.
  • this contact is sufficient to close the distribution channel so that impurities cannot enter said channel.
  • the valve returning to its rest position by its own elasticity after the air intake the closure of the distribution channel requires no special intervention by the user.
  • the valve preferably has the shape of a pellet supported by a rod.
  • the pastille is, for example, circular or oval.
  • the rod can be connected at any point with the patch, but it is preferably connected to the periphery of said patch, since a valve having a suitable elasticity is thus obtained more easily.
  • the rod advantageously has a plan view, the shape of a circle segment, the rod being connected on the side of the cord limiting said circle segment.
  • the valve may consist of a thin patch forming part of a part made of flexible material and connected directly to said part.
  • the valve consists of an elastic nipple carrying at its top a needle cooperating with the rigid base, the nipple crushing under the thrust of the product to be dispensed, so that the needle releases, by translation , the base towards the inside of the dispensing head and returning to its rest position in cooperation with the base, when dispensing ceases.
  • the rigid base is preferably formed by the edge of an opening formed in the surface of a cover constituting the external surface of the dispensing head; the valve is advantageously part of a part secured to the cover inside said dispensing head.
  • the opening, the edge of which defines the base can be arranged on the axis of the neck, but it is preferably eccentric with respect to this axis; in the latter case, the distribution channel comprises a lateral branch disposed obliquely to the axis of the neck of the container, which prevents the product to be dispensed from coming out of the valve under the valve in the event of an accidental fall of the container shock effect.
  • the rigid base can also be constituted by a part comprising a relief drawing an open line, the valve forming part of a part made of flexible material, which forms at least partially the external surface of the dispensing head, and cooperating with the edge said relief.
  • the valve device can be a vertical plug system, that is to say an axis parallel to the longitudinal axis of the assembly, comprising two concentric skirts having the same axis as the neck of the container, each skirt being provided with an opening, said openings being arranged in such a way that they can be made to coincide by rotation of one skirt relative to the other. It is also advantageous to use, as a valve device, a horizontal plug system, that is to say an axis perpendicular to the longitudinal axis of the assembly.
  • a needle system in which a first element comprising a female part and a second element comprising a male part of complementary dimensions can be moved in relative translation so as to provide, in the open position, a channel between the two aforementioned parts, at least one of these two parts being frustoconical.
  • FIG. 1 represents a dispensing assembly designated by 1.
  • This assembly consists of a flexible plastic container 2 and a dispensing head generally designated by 3.
  • the container 2 consists of a bottle proper (not shown) surmounted by a neck 21, disposed above a plane annular shoulder 22.
  • the neck 21 consists of three successive coaxial parts: a first cylindrical part 23 carrying radial fins 27, a second part 24 having a generally frustoconical shape and forming at its junction with the first cylindrical part an annular projection 25 of diameter greater than that of the first cylindrical skirt, and a second cylindrical part 26 more small diameter.
  • the head 3 consists of three elements: an outer cover 4 provided on its upper surface (in the position shown in FIG. 1), with a circular opening 41, the edge of which serves as a base for the closing device F; an intermediate piece of flexible material 5 carrying a flexible valve 51; and a reducer 6.
  • the reducer 6 is fixed on the neck 21 of the bottle, the cover 4 is mounted to rotate freely on the reducer 6 and the piece of flexible material 5 is fixed in the cover 4 between said cover 4 and the reducer 6 .
  • the reduction gear 6 comprises an external cylindrical skirt 61 divided into two parts 61 a and 61 b connected by a shoulder 61 c
  • the lower part 61 a of the external skirt 61 has an external diameter equal to the external diameter of the shoulder 22 of the container 2 so as to form therewith a substantially continuous wall.
  • the skirt 61 has an internal bead 62 which is placed by snapping under the projection 25 of the neck 21 of the bottle 2; it is also provided below the bead 62 with fins 63 which cooperate with the fins 27 of the cylindrical part 23 of the neck to prevent the reduction of the reduction gear 6 relative to the neck 21 of the container 2.
  • the upper part 61 b of the skirt 61 carries an annular external flange 64 for fixing the cover 4 relative to the reducer 6, with free rotation of the cover 4 relative to the reducer 6.
  • the skirt 61 carries, at the upper part of the part 61 b , a first flat annular flange 65 carrying annular beads 65 has turned outwards.
  • the flange 65 is connected to a second planar annular flange 66 disposed in the vicinity of the upper edge of the neck 21 and of smaller diameter than the flange 65, the two flanges 65, 66 being connected to each other by a cylindrical-conical surface 67.
  • a cylindrical skirt 68 facing the container 2 which has an external diameter equal, apart from the necessary clearance, to the internal diameter of the neck 21.
  • a cylindrical skirt 69 with an opening 70.
  • the cover 4 has a slightly curved upper surface 42, in which the opening 41 is formed, said opening being situated outside the axis X - X of the dispensing head 3.
  • a cylindrical side skirt 43 directed towards the container; this skirt 43 extends to the level of the shoulder 61 c of the reducer 6.
  • the lower edge of the skirt 43 carries, in radial relief, a position indicator 44.
  • the edge of the shoulder 61 c carries markers making it possible to identify the rotation of the cover 4 relative to the reducer 6.
  • On the internal face of the upper surface 42 is fixed an axial cylindrical skirt 45 having an external diameter equal, apart from the necessary clearance, to the internal diameter of the skirt 69 of the reducer 6.
  • the axial cylindrical skirt 45 is provided with an opening 46 capable of coinciding, by rotation of the cover 4, with the opening 70 of the reducer 6. It can be seen that, in this embodiment, the valve device is formed by the two skirts 45 and 69 capable of rotating relative to each other and through the openings 46 and 70.
  • On the inner face of the upper surface 42 of the cover 4 are arranged two ribs 47 and 48 intended to penetrate into grooves of corresponding shape pra ticked in room 5 as shown below.
  • the side skirt 43 is provided with a radial rib 49 which penetrates into a notch 55 of the part 5 made of flexible material.
  • the intermediate piece of flexible material 5 consists of a web having a generally annular shape centered on the axis X - X; this annular veil comprises a practically flat peripheral part 52 a and a frustoconical central part 52 b inclined towards the container.
  • the part 5 is secured to the internal face of the upper surface 42 of the cover 4 by grooves 53 and 54 cooperating respectively with the ribs 47 and 48 of the cover 4; it is provided at its periphery with a notch 55 cooperating with the radial rib 49 of the cover 4.
  • the part 5 rests by its lower face on the bosses 65 a of the reducer 6; it is, according to an advantageous embodiment, provided under the underside of the part 51 a , with a flexible radial blade (not shown) which can be positioned in a groove formed on the upper face of the reducer 6, between two wings radial parallels (not shown): this blade, when it comes into place in its groove, when the head 3 is turned, produces a slight click which allows the user to detect, acoustically, the moment when goes from the open position to the closed position.
  • the part 5 has a cylindrical skirt 56 whose wall extends on either side of the web constituting the workpiece 5; above said veil, said wall is removed over approximately 150 ° to give rise to a notch 56 a .
  • the notch 56 a opens in a chamber 57 delimited laterally by the rib 48 of the cover 4 and the skirt 69 of the reducer 6 and delimited at its lower part, by the veil of the piece of flexible material 5.
  • the skirt 69 of the reducer 6 is engaged inside the skirt 56, which allows free rotation of the cover 4 relative to the reducer 6.
  • the opening 46 is opposite the notch 56 a .
  • the opening 70 of the reducer 6 can be, depending on the relative position of the cover 4 and the reducer 6, located opposite the opening 46 and can, therefore, put the chamber 57 in communication with the interior of the container.
  • the valve 51 is fixed to the frustoconical part 51 b of the web of the part 5 and it is arranged in the chamber 57. It consists of a pad 51 a supported by a rod 5 b connected to the periphery of the pad 51 a .
  • the patch 51 a has, in plan, a shape of a circle segment, the rod 51 b being connected according to the cord which joins the two ends of said circle segment; it is arranged in the opening 41 of the cover 4, so that, in the region of its circumference not connected to the rod 51b, it can cooperate in non-leaktight manner via its periphery with the fixed rigid base formed by the edge of the opening 41 and thus form the closing device F.
  • the assembly operates as described below.
  • the user wishes to dispense the product contained in the container 2, he rotates the cover 4 relative to the reducer 6 until the marks marked on the shoulder 61 c of the reducer 6 indicate to him that the openings 46 of the skirt 45 of the cover 4 and 70 of the skirt 69 of the reduction gear 6 are arranged opposite one another; the valve device is open and communication between the container 2 and the chamber 57 is then established.
  • the user then presses on the container 2 made of flexible material.
  • the product to be dispensed passes through the channel delimited by the neck 21, the skirts 68, 69 and 45, passes through the openings 46 and 70 and enters the chamber 57.
  • the pellet 51 Under the pressure of the product, the pellet 51 has a valve 51 s' spreads outwards from the fixed base formed by the edge of the opening 41 of the cover 4: the distribution of the product begins.
  • the wall of said container tends to return to its initial shape by elasticity and there is therefore a depression in the container 2 and in the chamber 57.
  • the pellet 51 has a valve 51 is sucked into said chamber 57; the air enters the container 2.
  • the pellet 51 a returns by elasticity to its rest position where it cooperates in a leaktight manner with the base formed by the edge of the opening 41 cover 4.
  • the assembly 1 is again closed and ready for a new use. If the user wishes, for example before leaving on a trip, he can close the valve device by turning cover 4 in the opposite direction.
  • FIGS 3 a and 3 b illustrate a variant 101 of an assembly according to the invention in which a cover 104 is movable in rotation relative to a reduction gear 106 and where the valve device is constituted by a needle system.
  • the assembly 101 is constituted by a bottle 102 provided with a cylindrical neck 121 disposed on a shoulder 122 of the container 102.
  • the neck 121 carries an external screw pitch 123 then a stop bead 124 and finally in the vicinity of the opening of the neck on a thinner area a snap strip 125.
  • a dispensing head 103 is fixed on the neck 121: it comprises a cover 104, a piece 105 of flexible material and a reducer 106.
  • the reducer 106 is constituted by a flat annular part 161 carrying on its external periphery a cylindrical skirt 162 facing the container. Said skirt 162 is provided on its internal wall with a groove 163 cooperating with the snap flange 125 of the neck 121 of the container 2.
  • An internal skirt 164 is fixed on the internal edge of the annular part 161 and extends from side to side. on the other of said annular part 161. The skirt 164 has an external diameter equal, apart from the necessary clearance, to the internal diameter of the neck 121 and it is pressed into said neck 121, the planar annular part 161 resting on the upper edge of the neck 121.
  • the upper part of the skirt 164 is extended by a frustoconical part 165 inclined towards the axis X - X of symmetry of the dispensing head 103; the frustoconical part 165 is provided with openings 166.
  • the frustoconical part 165 is closed by a circular surface 167 connected to its part of smaller diameter by a cylindrical wall.
  • the cover 104 comprises a flat upper surface 142 provided with an opening 141 and fixed by snap-fastening on a cylindrical external skirt 143 which extends in the direction of the shoulder 122 of the container 102.
  • the internal wall of the skirt 143 comprises a thread 144 which cooperates with the screw pitch 123 of the neck 121.
  • the skirt 143 carries a transverse wall 145 comprising a central circular opening 148.
  • the transverse wall 145 comprises, around the opening 148, a frustoconical bearing 146 formed by the beveled edge of the wall 145.
  • the frustoconical bearing 146 has dimensions complementary to the frustoconical portion 165.
  • the frustoconical bearing 146 extends towards the container by a cylindrical skirt 147 , which has an internal diameter equal, apart from the necessary clearance, to the external diameter of the skirt 164 of the reducer 106.
  • the piece 105 made of flexible material is disposed in the cover 104 between the upper surface 142 and the transverse wall 145.
  • This piece 105 is hollowed out of a chamber 157 into which the opening 148 opens out of the transverse wall 145 of the cover and which is disposed under the opening 141 of the upper surface 142 of the cover.
  • the part 105 comprises the valve 151.
  • This valve is formed, first of all, by a part forming a rod 151 b which is formed by an extra thickness of the piece 105 compensating for the thickness of the upper surface 142 of the cover, the rod 151 b being in contact with the edge of the opening 141, and, secondly, by a pellet 151 a , the edge is in leaktight contact with the edge of the opening 141.
  • the patch 151 a is capable of deviating, by elasticity, from the edge of the opening 141 forming a base as well towards the outside of the dispensing head 103 inwardly of the chamber 157 to form the closing device F.
  • the device operates as described below.
  • the user wishes to dispense the product contained in the container 102, he begins by opening the needle type security system formed by the frustoconical surface 165 of the reducer 106 and by the frustoconical surface 146.
  • the cover 104 is driven in a linear translational movement upwards along the axis X - X; the opening 148 emerges from the circular surface 167 which formed a shutter and an annular channel is formed between the frustoconical surfaces 165 and 146 which places the interior of the neck 121 through the openings 166 and the opening 148 and the chamber 157.
  • the rotation of the cover 104 is blocked by abutment against the bead 124.
  • the product leaves the container via the neck 121, the conduit defined by the skirt 164, the openings 166, the annular space formed between the conical surfaces 165 and 146, at the opening 148 and the chamber 157.
  • the pellet 151 a of the valve 151 diverges by elasticity from the edge of the opening 141 of the cover forming a base.
  • the depression formed in the container 102 and the chamber 157 by the elastic return of the wall of the container causes an air intake.
  • the pellet 151 a deviates by bending towards the inside of the chamber 157.
  • the pellet 151 a returns to the rest position in contact. not waterproof with the edge of the opening 141 forming a base.
  • Figures 4 and 5 show two variants 201, 301 of a dispensing assembly according to the invention in which the valve device of the dispensing head 203, 303 is of the needle type.
  • the necks 221 and 321 of the container, reducing 206 and 306 respectively are identical to those (121 and 106) of the assembly shown in Figures 3 a and 3 b.
  • the shape of the piece 205, 305 made of elastic material as well as the upper part of the cover 204, 304 are the only ones modified with respect to the embodiment of FIG. 3.
  • the upper surface of the cover has been removed and the part 205 of elastic material is fixed by fitting on a transverse wall 245.
  • the transverse wall 245 has a relief 246 forming at its upper part a unclosed curved line which crosses the part 205 of flexible material and thus defines in the part 205 a valve 251.
  • the base thereof that is to say the part which is not not in contact with the relief 246 and is opposite to it, is thinned by a groove 252.
  • the closing device F is therefore formed by the edge of the valve 251 which is in leaktight contact with the side wall of the relief 246.
  • a chamber 257 is provided under the valve 251.
  • the piece 305 of flexible plastic material is disposed inside the cover 304 between an upper surface 342 and a transverse wall 345.
  • the opening 341 n is not provided on the upper surface 342, but on an inclined part 343 of the side wall.
  • the valve 351 consists of a pellet, which, in the rest position, is inclined so as to be in the plane of the inclined wall 343; this pellet is a thinned part of the part 305 so as to obtain a flexible valve; room 357 is housed in a chamber 357 disposed behind the pellet which forms the valve.
  • Figures 6 and 7 show an assembly 401 according to the invention in which the valve system is formed by a vertical plug system constituted by two skirts provided with stackable openings, movable in rotation relative to each other. But in this embodiment, unlike that shown in Figure 1, the cover 404 is fixed relative to the container and the reduction gear 406 is movable in rotation.
  • the assembly 401 comprises a container 402 of flexible plastic material provided with a neck 421 fixed on a shoulder 422.
  • the side wall of the container and the shoulder are provided with a notch 423 projecting inside the container, the side walls 423 a are formed by radial planes, the bottom wall 423 b by a cylindrical sector and the lower wall by an annular segment 42 c .
  • a groove 424 carrying a snap cord 425 At the junction between the shoulder 422 and the container 402 is provided a groove 424 carrying a snap cord 425.
  • the neck 421 externally carries a snap bead 426 allowing the fixing of the reducer 406 of the dispensing head 403 in a movable manner. rotation.
  • the reduction gear 406 has a first skirt 461 and a second skirt 463 separated by a shoulder.
  • the skirt 461 has a diameter such that it can be fixed by snapping on the neck 421.
  • the skirt 461 carries an operating button 462 fixed on a rod which is placed in the notch 423: the operating button 462 protrudes just the notch 423.
  • the skirt 463 has a smaller diameter than the skirt 461 and it is provided on its free upper edge with a notch 464.
  • the cover 404 has a circular upper surface 442 pierced with an off-center opening 441 At the periphery of the upper surface 442 is disposed a cylindrical outer skirt 443, the lower edge of which is fixed by snapping into the groove 424.
  • the underside of the surface 442 carries an internal cylindrical skirt 444, the edge of which is provided with an opening 445.
  • the skirt 444 is threaded inside the skirt 463.
  • a piece 405 of flexible elastic material is fixed under the upper surface 442 of the cover 404; it comprises a skirt 452, which surrounds the skirt 463 of the reducer; the valve 451 is a wafer 451 is carried by the upper edge of the skirt 452, said wafer being connected to the skirt by a zone of small width comprising a rod 451 b.
  • the disc of the valve 451 is placed, in the rest position, inside the opening 441 of the cover 404.
  • the chamber provided under the valve 451, between the skirts 452 and 463, is in communication with the opening 464 of the reducer 406.
  • the operating button 462 is acted between limit positions determined by the radial planes 423 a .
  • the reducer 406 is thus made to rotate between an open position where the openings 464 and 445 coincide and a closed position where these openings no longer coincide.
  • the operating member 462 can be replaced by a thumb wheel going around the reduction gear 406.
  • the cover 404 and the bottle 402 have a generally oval shape.
  • a notch is provided on the two sides of small curvature of the hood so that this wheel is maneuverable between the thumb and the index finger of the user.
  • Figures 8 to 10 show a variant of the assembly according to the invention in which the valve of the closure system is constituted by an elastic nipple carrying a needle which is crushed under the pressure of the product, so that the needle releases by translation the base, and the valve device is a horizontal plug system.
  • the distribution assembly is designated as a whole by 501; it consists of a flexible material container 502 shown partially in the drawing and of a dispensing head designated as a whole by 503.
  • the head 503 consists of three elements: an outer cover 504 provided on its upper surface with a circular opening 541 serving as a base for the closing system F; an intermediate piece of elastic material 505; and a reducer 506.
  • the reducer 506 is fixed to the bottle; the intermediate piece of flexible material 505 carries a valve 551 cooperating with the opening 541; the cover 504 forms a movable assembly in rotation about the vertical axis X-X of the neck, relative to the reduction gear 506.
  • the bottle 502 is provided with a neck 521 of smaller diameter carrying an annular projection 525.
  • the reduction gear 506 comprises an external skirt carrying on its internal wall a groove 562, in which the annular projection 525 of the neck.
  • a system of fins (not shown), fixed on the neck and on the internal wall of the skirt 561, prevents any rotation of the reduction gear 506 relative to the neck 521.
  • the skirt 561 carries at its upper part a flat annular collar 565, which is connected via a frustoconical surface 567 facing the container to an axial chimney 569 provided with an opening 570.
  • Below the flange 565 is disposed a cylindrical axial sealing skirt 568, facing the container 502, which has an external diameter equal, apart from the necessary clearance, to the internal diameter of the neck 521.
  • the cover 504 has a slightly curved upper surface 542, in which an opening 541 is formed, an opening situated outside the axis X - X of the dispensing head 503.
  • a cylindrical skirt lateral 543 directed towards the container and fixed in rotation by a bead-groove system on the external wall of the skirt 561 of the reducer 506.
  • a skirt 544 On the internal face of the surface 542 is formed a skirt 544 forming an annular projection having a diameter less than that of the skirt 543.
  • a chamber 545 in the form of a dome is formed in the surface 542 around the opening 541, this chamber being tangent to the skirt 544.
  • the internal face of the surface 542 also carries a projection 546 in the form of arc of a circle open towards chamber 545, this projection 546 surrounding the chimney 569 and having a diameter greater than that of said chimney 569.
  • Said internal face also carries a ju eg axial cylindrical 547 having an external diameter equal, up to the necessary clearance, to the internal diameter of the chimney 569.
  • an opening 548 capable of coinciding, by rotation of the cover 504 relative to the reducer 506, with the opening 570 of the chimney 569 for the distribution position.
  • the intermediate piece 505 of flexible material has a generally planar annular surface 552 perpendicular to the axis X - X of the head 503.
  • the valve 551 which has the shape of a dome carrying a needle 551 is capable of closing the opening 541 of the cover 504; the upper part of the needle 551 a and the edge of the opening 541 forms the closure system F.
  • the planar annular surface 552 is bordered at its periphery by a skirt 553, which is inserted between the skirt 543 and the projection 544 of the cover 504.
  • skirts 554 and 555 in the shape of an arc of a circle; the skirt 554 is constituted by a circular arc having an internal diameter equal, apart from the necessary clearance, to the external diameter of the chimney 569 and the two skirts 554 and 555 provide between them a space such that the skirt 546 of the cover 504 can s 'insert there.
  • the open angle left by the various semi-circular skirts 554, 546 and 555 is such that the opening 570 of the chimney 569 is free for a position of the sub-assembly mobile 504-505 relative to the fixed sub-assembly 502-506, position which corresponds to the distribution.
  • Under the planar annular surface 552 is disposed a projection in the form of a frustoconical cone which is placed between the frustoconical wall 567 and the chimney 569 of the reducer 506.
  • the device 501 operates as follows: when the user wishes to dispense the product contained in the container 502, he rotates the integral assembly constituted by the cover 504 and the intermediate piece 505 relative to the reducer 506 until the opening 548 of the skirt 547 of the cover 504 coincides with the opening 570 of the chimney 569; in this position, the opening 570 is opposite the open angle provided in the concentric skirts 554, 546 and 555. The user then presses on the container 502 and the product contained in this container enters the chimney 569 and, after having passed through the openings 548 and 570, enters the chamber 545.
  • the product exerts a pressure on the dome 551 which deforms and flattens towards the interior of the chamber 545 giving the needle 551 a a translational movement, which releases the opening 541 of the cover 504.
  • the product can then exit.
  • the product ceases to exert pressure on the dome 551 which returns to its initial shape, the needle 551 a returning by translation to close the opening 541.
  • the assembly 501 is then closed again. If desired, the user can close the valve device by rotating the cover 504 in the opposite direction relative to the container 502.
  • FIGS 11 to 15 show an embodiment of a dispensing device according to the invention in which the valve has the shape of a pellet and the valve device is horizontal plug.
  • the dispensing device is designated as a whole by the reference 601; it consists of a flexible bottle 602 on the neck 621 from which is screwed a dispensing head generally designated by 603.
  • the dispensing head 603 is formed by the assembly of three elements: a cover 604 having a circular opening 641 , a flexible intermediate piece 605 comprising the valve 651 cooperating with the edge of the opening 641 to form the closing system F and a reduction gear 606; the reduction gear 606 is fixed and the assembly constituted by the cover 604 and the intermediate piece 605 is movable in rotation relative to the reduction gear 606, about an axis horizontal perpendicular to the vertical longitudinal axis XX of the dispensing device.
  • the reducer 606 consists of a cylindrical skirt 661 provided, on its internal face, with a screw pitch cooperating with a complementary screw pitch of the neck 621 of the bottle 602.
  • a surface annular plane 662 On the upper edge of the skirt 661 is provided a surface annular plane 662; this surface 662 is provided, on the bottle side, with a sealing skirt 663 placed inside the neck 621
  • an axial duct 664 On the other face of the surface 662 is disposed an axial duct 664 provided at its end furthest from the bottle d 'A cylindrical plug 665 whose axis is perpendicular to the longitudinal axis X - X of the dispensing device 601.
  • This plug 665 is provided with a slot 666 diametrically opposite the conduit 664.
  • the cover 604 is composed of two shells 642 and 643 assembled by fitting together; during the assembly of the two shells, two openings are arranged on the horizontal axis of the plug, openings in which are arranged pins 644 integral with the ends of the plug 665 and guiding the rotation of the sub-assembly (cover 604 / piece intermediate 605) elastic around the plug 665.
  • the upper shell 643 has the opening 641. It has an internal projection 645, which serves as a support for the rod carrying the valve 651. Between the two shells 642 and 643 is formed a chamber 646.
  • the flexible intermediate piece 605 carries the disc forming a valve 651 by means of a rod 652 which is in abutment against the projection 645 shell 643, it comprises a blade 653 which rests on the internal face of shell 642, at its end opposite to that carrying the valve 651, it is provided with an element in the form of a cylinder segment 654 having dimensions such that it can pivot around the plug 665.
  • this element 654 is formed a slot 655 capable of coinciding by rotation with the slot 666 of the plug 665.
  • the sub-assembly (cover 604 / intermediate piece 605) is arranged vertically.
  • the dispensing head 603 can then be protected by a cover 607 (FIG. 15) fixed by snap-fastening on a bead 622 of the flexible bottle 602.
  • the opening 666 is opposite the opening 655 and the bottle 602 is in communication with the chamber 646.
  • the user then manually exerts pressure on the flexible bottle 602.
  • the product contained in the bottle 602 then exits through the neck 621, crosses the conduit 664 and the openings or slots 666 and 655 to enter the chamber 646.
  • the disc 651 of the valve moves towards the outside of the fixed base formed by the edge of the opening 641 of the cover 604: the distribution of the product begins.
  • the wall of the latter tends to return to its initial shape by elasticity and a depression is formed in the container 602, and in the chamber 646; the pellet 651 is sucked into the chamber 646; the air enters the container and when the container 602 is returned to atmospheric pressure, the pellet 651 resiliently returns to its rest position, where it cooperates in a leaktight manner with the edge of the opening 641 of the cover 604. L the user can then, if he deems it necessary, close the valve device by rotating the dispensing head in a vertical position and protect the dispensing head with the cover 607.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Description

La présente invention concerne un ensemble de distribution d'au moins un produit liquide ou sous forme de crème selon le préambule de la revendication 1. Cet ensemble est notamment intéressant pour distribuer des produits cosmétiques ou pharmaceutiques.The present invention relates to a dispensing assembly of at least one liquid product or in the form of a cream according to the preamble of claim 1. This assembly is particularly advantageous for dispensing cosmetic or pharmaceutical products.

Les ensembles de distribution de ce type sont généralement constitués d'un récipient contenant au moins un produit à distribuer, sur le goulot duquel est fixée, de façon amovible ou non, une tête de distribution et, éventuellement, un dispositif permettant à l'utilisateur d'actionner ladite tête de distribution. La tête de distribution comprend au moins un canal de distribution du produit communiquant, d'une part, avec le récipient précité et, d'autre part, avec l'extérieur.Dispensing assemblies of this type generally consist of a container containing at least one product to be dispensed, on the neck of which is fixed, removably or not, a dispensing head and, optionally, a device allowing the user to actuate said dispensing head. The distribution head comprises at least one distribution channel for the product communicating, on the one hand, with the aforementioned container and, on the other hand, with the outside.

La demanderesse a déjà proposé dans FR-A 2 650 255 un ensemble de distribution comportant, à l'extrémité d'au moins un canal de la tête de distribution s'ouvrant sur l'extérieur, un système de fermeture formé par un obturateur en matériau élastique qui coopère avec un siège en contact étanche lorsqu'il n'y a pas de distribution ledit obturateur s'écarte du siège par déformation élastique sous la pression du produit à distribuer et revient par élasticité en contact étanche avec le siège, lorsque cesse la distribution. Ce système de fermeture nécessite que l'obturateur et le siège soient en contact sur une surface suffisamment grande pour assurer l'étanchéité. Un tel système de fermeture est aseptique, ce qui est avantageux, notamment, dans le cas où l'on distribue des produits dégradables ou ne contenant pas de conservateurs ; mais, pour de nombreux produits tels que, par exemple, les crèmes solaires, une telle asepsie n'est pas nécessaire. Ledit système de fermeture est aussi utilisé avec profit lorsque l'ensemble comprend un récipient constitué par un tube ou une poche souple déformable ou par un récipient comportant un piston suiveur nécessitant une absence de reprise d'air. Mais, dans le cas où une reprise d'air est nécessaire, on est obligé de munir la tête de distribution d'une valve de reprise d'air en plus du système de fermeture aseptique, car ledit système de fermeture ne permet pas la reprise d'air ; on perd ainsi le bénéfice de la simplicité puisqu'on est obligé de mettre en oeuvre deux valves.The Applicant has already proposed in FR-A 2 650 255 a distribution assembly comprising, at the end of at least one channel of the distribution head opening to the outside, a closure system formed by a shutter in elastic material which cooperates with a seat in tight contact when there is no distribution, said shutter moves away from the seat by elastic deformation under the pressure of the product to be dispensed and returns by elasticity in tight contact with the seat, when it ceases the distribution. This closing system requires that the shutter and the seat are in contact on a surface large enough to ensure sealing. Such a closure system is aseptic, which is advantageous, in particular, in the case where products which are degradable or which do not contain preservatives are distributed; but, for many products such as, for example, sunscreens, such asepsis is not necessary. Said closure system is also used with advantage when the assembly comprises a container constituted by a flexible tube or deformable pocket or by a container comprising a follower piston requiring an absence of air intake. But, in the case where an air intake is necessary, it is necessary to provide the dispensing head with an air intake valve in addition to the aseptic closure system, because said closure system does not allow the air intake; we thus lose the benefit of simplicity since we are forced to use two valves.

US-A 4 314 658 décrit un ensemble de distribution d'un liquide, correspondant au préambule de la revendication 1, comportant une tête de distribution comprenant un canal de distribution fermé à son extrémité par un dispositif de fermeture comprenant un clapet souple déformable par élasticité sous la pression du produit et coopérant au repos de façon non étanche avec une embase.US-A 4,314,658 describes a liquid distribution assembly, corresponding to the preamble of claim 1, comprising a distribution head comprising a distribution channel closed at its end by a closure device comprising a flexible valve deformable by elasticity under product pressure and cooperating at rest in a leaktight manner with a base.

Dans cette réalisation, le clapet n'est pas susceptible de prendre une position particulière, différente de la position de distribution et de repos. Pour permettre une reprise d'air rapide, il est donc nécessaire que l'étanchéité entre le clapet et son embase soit faible et il y a, par conséquent, des risques de fuite du produit ou d'introduction de souillures accidentelles. Il faut noter que le passage de la position de distribution à celle de repos est trop bref pour permettre une reprise d'air.In this embodiment, the valve is not likely to take a particular position, different from the dispensing and rest position. To allow rapid air intake, it is therefore necessary that the seal between the valve and its base is weak and there are, therefore, risks of product leakage or accidental contamination. It should be noted that the passage from the dispensing position to that of rest is too brief to allow air to be taken up.

EP-A 0 111 798 décrit un ensemble comportant un dispositif de fermeture comportant deux lèvres souples et un dispositif permettant d'éviter toute distribution involontaire de produit lors du transport ou d'autres manipulations.EP-A 0 111 798 describes an assembly comprising a closing device comprising two flexible lips and a device making it possible to avoid any involuntary distribution of product during transport or other handling.

Il est bien connu que les systèmes de valve comportant deux lèvres ont généralement une étanchéité qui n'est pas totale mais qui est élevée et que la reprise d'air qui peut avoir lieu pendant leur passage de la position de repos à la position de distribution n'est généralement pas suffisante. Il faut donc attendre très longtemps pour que la pression à l'extérieur du récipient et celle à l'intérieur du récipient s'égalisent grâce au fait que les lèvres ne sont pas étanches.It is well known that valve systems comprising two lips generally have a seal which is not total but which is high and that the air intake which can take place during their passage from the rest position to the dispensing position is generally not sufficient. It is therefore necessary to wait a very long time for the pressure outside the container and that inside the container to equalize thanks to the fact that the lips are not tight.

La présente invention concerne un système de valve, qui permet à la fois d'assurer la distribution et la reprise d'air mais qui évite néanmoins l'introduction dans le produit, au cours de sa distribution ou au cours du stockage, de souillures accidentelles, par exemple de sable pour une crème solaire. Cette protection a l'avantage de s'effectuer automatiquement après la distribution du produit, sans qu'un geste particulier de l'utilisateur soit nécessaire.The present invention relates to a valve system, which makes it possible both to ensure the distribution and the return of air but which nevertheless avoids the introduction into the product, during its distribution or during storage, of accidental soiling , for example sand for sunscreen. This protection has the advantage of being carried out automatically after the distribution of the product, without any particular gesture by the user being necessary.

La présente invention a pour objet un ensemble de distribution d'au moins un produit liquide ou sous forme de crème, comportant un récipient et une tête de distribution, ladite tête de distribution comprenant au moins un canal de distribution fermé à son extrémité, s'ouvrant vers l'extérieur par un dispositif de fermeture comprenant un clapet souple déformable par élasticité sous la poussée du produit à distribuer et coopérant au repos avec une embase, caractérisé par le fait que le clapet coopère de façon non étanche en position de repos avec une embase rigide fixe, ledit clapet s'écartant de ladite embase par déformation élastique sous-la poussée du produit à distribuer, puis se mettant, lorsque cesse la distribution du produit, dans une position différente de la position de repos permettant la reprise d'air, qui est située à l'intérieur de la tête de distribution par rapport à l'embase rigide fixe.The subject of the present invention is a dispensing assembly for at least one liquid or cream product, comprising a container and a dispensing head, said dispensing head comprising at least one dispensing channel closed at its end, s' opening towards the outside by a closing device comprising a flexible valve deformable by elasticity under the thrust of the product to be dispensed and cooperating at rest with a base, characterized in that the valve cooperates non-tightly in the rest position with a fixed rigid base, said valve moving away from said base by elastic deformation under the thrust of the product to be dispensed, then putting itself, when the dispensing of the product ceases, in a position different from the rest position allowing the air intake , which is located inside the dispensing head relative to the fixed rigid base.

On voit que, dans ces conditions, le clapet ferme suffisamment l'extrémité du canal de distribution pour empêcher la pénétration accidentelle d'impuretés, mais que, le clapet coopèrant de façon non étanche avec l'embase, la reprise d'air est possible.It can be seen that, under these conditions, the valve sufficiently closes the end of the distribution channel to prevent accidental penetration of impurities, but that, the valve cooperating in leaktight manner with the base, the air intake is possible .

L'ensemble selon l'invention peut également comporter, en amont du dispositif de fermeture, un dispositif de valve permettant de couper la communication entre le récipient et le dispositif de fermeture. Ce dispositif permet de transporter l'ensemble sans risque de fuite accidentelle de produit, mais il n'est, en général, pas nécessaire de le mettre en oeuvre entre deux utilisations successives de l'ensemble.The assembly according to the invention may also include, upstream of the closing device, a valve device making it possible to cut the communication between the container and the closing device. This device makes it possible to transport the assembly without risk of accidental leakage of product, but it is generally not necessary to use it between two successive uses of the assembly.

Selon un mode de réalisation préféré, en position de repos, le clapet coopère bord à bord avec l'embase, le clapet s'écartant de ladite embase vers l'extérieur de la tête de distribution, sous la poussée du produit à distribuer, puis vers l'intérieur de la tête de distribution, dans un espace ménagé à cet effet, pour permettre la reprise d'air lorsque cesse la distribution et revenant enfin dans sa position de repos, lorsque la reprise d'air est terminée.According to a preferred embodiment, in the rest position, the valve cooperates edge to edge with the base, the valve moving away from said base towards the outside of the dispensing head, under the thrust of the product to be dispensed, then towards the inside of the dispensing head, in a space provided for this purpose, to allow the air intake when the dispensing stops and finally returning to its rest position, when the air intake is finished.

Dans ce mode de réalisation, le clapet et l'embase étant en contact bord à bord, c'est-à-dire sur une zone de contact déterminée par l'épaisseur du clapet ou de l'embase, la zone de contact au repos est très faible et, par conséquent, il n'y a pas étanchéité. Cependant, ce contact suffit à fermer le canal de distribution de façon que des impuretés ne puissent pas pénétrer dans ledit canal. De plus, le clapet revenant dans sa position de repos par son élasticité propre après la reprise d'air, la fermeture du canal de distribution ne demande aucune intervention particulière de l'utilisateur.In this embodiment, the valve and the base being in edge-to-edge contact, that is to say on a contact zone determined by the thickness of the valve or the base, the contact zone at rest is very weak and therefore there is no tightness. However, this contact is sufficient to close the distribution channel so that impurities cannot enter said channel. In addition, the valve returning to its rest position by its own elasticity after the air intake, the closure of the distribution channel requires no special intervention by the user.

Le clapet a, de préférence, la forme d'une pastille supportée par une tige. La pastille est, par exemple, circulaire ou ovale. La tige peut se raccorder en un point quelconque avec la pastille mais elle est, de préférence, reliée à la périphérie de ladite pastille, car on obtient ainsi plus facilement un clapet ayant une élasticité convenable. Dans le cas où la tige est reliée à la périphérie de la pastille, cette dernière a, avantageusement, vue en plan, la forme d'un segment de cercle, la tige se raccordant du côté de la corde limitant ledit segment de cercle.The valve preferably has the shape of a pellet supported by a rod. The pastille is, for example, circular or oval. The rod can be connected at any point with the patch, but it is preferably connected to the periphery of said patch, since a valve having a suitable elasticity is thus obtained more easily. In the case where the rod is connected to the periphery of the patch, the latter advantageously has a plan view, the shape of a circle segment, the rod being connected on the side of the cord limiting said circle segment.

Le clapet peut être constitué d'une pastille mince faisant partie d'une pièce en matériau souple et reliée directement à ladite pièce.The valve may consist of a thin patch forming part of a part made of flexible material and connected directly to said part.

Selon un autre mode de réalisation, le clapet est constitué par un mamelon élastique portant à son sommet un pointeau coopérant avec l'embase rigide, le mamelon s'écrasant sous la poussée du produit à distribuer, de façon que le pointeau dégage, par translation, l'embase vers l'intérieur de la tête de distribution et revenant dans sa position de repos en coopération avec l'embase, lorsque cesse la distribution.According to another embodiment, the valve consists of an elastic nipple carrying at its top a needle cooperating with the rigid base, the nipple crushing under the thrust of the product to be dispensed, so that the needle releases, by translation , the base towards the inside of the dispensing head and returning to its rest position in cooperation with the base, when dispensing ceases.

L'embase rigide est, de préférence, constituée par le bord d'une ouverture ménagée dans la surface d'un capot constituant la surface extérieure de la tête de distribution ; le clapet fait, avantageusement, partie d'une pièce solidarisée du capot à l'intérieur de ladite tête de distribution. L'ouverture, dont le bord définit l'embase, peut être disposée sur l'axe du goulot mais elle est, de préférence, excentrée par rapport à cet axe ; dans ce dernier cas, le canal de distribution comporte une branche latérale disposée en oblique par rapport à l'axe du goulot du récipient, ce qui évite qu'en cas de chute accidentelle du récipient, le produit à distribuer sorte par le clapet sous l'effet du choc.The rigid base is preferably formed by the edge of an opening formed in the surface of a cover constituting the external surface of the dispensing head; the valve is advantageously part of a part secured to the cover inside said dispensing head. The opening, the edge of which defines the base, can be arranged on the axis of the neck, but it is preferably eccentric with respect to this axis; in the latter case, the distribution channel comprises a lateral branch disposed obliquely to the axis of the neck of the container, which prevents the product to be dispensed from coming out of the valve under the valve in the event of an accidental fall of the container shock effect.

L'embase rigide peut aussi être constituée par une pièce comportant un relief dessinant une ligne ouverte, le clapet faisant partie d'une pièce en matériau souple, qui forme au moins partiellement la surface extérieure de la tête de distribution, et coopérant avec le bord dudit relief.The rigid base can also be constituted by a part comprising a relief drawing an open line, the valve forming part of a part made of flexible material, which forms at least partially the external surface of the dispensing head, and cooperating with the edge said relief.

Le dispositif de valve peut être un système à boisseau vertical, c'est-à-dire d'axe parallèle à l'axe longitudinal de l'ensemble, comportant deux jupes concentriques ayant le même axe que le goulot du récipient, chaque jupe étant munie d'une ouverture, lesdites ouvertures étant disposées de façon telle que l'on puisse les faire coïncider par rotation d'une jupe par rapport à l'autre. Il est également intéressant d'utiliser, comme dispositif de valve, un système à boisseau horizontal, c'est-à-dire d'axe perpendiculaire à l'axe longitudinal de l'ensemble. On peut aussi mettre en oeuvre un système à pointeau, dans lequel un premier élément comportant une partie femelle et un deuxième élément comportant une partie mâle de dimensions complémentaires peuvent être déplacées en translation relative de façon à ménager, en position d'ouverture, un canal entre les deux parties précitées, l'une au moins de ces deux parties étant tronconique.The valve device can be a vertical plug system, that is to say an axis parallel to the longitudinal axis of the assembly, comprising two concentric skirts having the same axis as the neck of the container, each skirt being provided with an opening, said openings being arranged in such a way that they can be made to coincide by rotation of one skirt relative to the other. It is also advantageous to use, as a valve device, a horizontal plug system, that is to say an axis perpendicular to the longitudinal axis of the assembly. It is also possible to use a needle system, in which a first element comprising a female part and a second element comprising a male part of complementary dimensions can be moved in relative translation so as to provide, in the open position, a channel between the two aforementioned parts, at least one of these two parts being frustoconical.

La description de plusieurs modes de réalisation de l'invention, donnée ci-dessous à titre non limitatif et purement illustratif, en se référant au dessin annexé, permettra de mieux comprendre l'invention.The description of several embodiments of the invention, given below without implied limitation and purely illustrative, with reference to the appended drawing, will allow a better understanding of the invention.

Sur ce dessin:

  • la figure 1 est une vue en coupe longitudinale d'un ensemble de distribution selon l'invention ;
  • la figure 2 est une vue de dessus de la pièce en matériau souple comportant le clapet de l'ensemble de distribution de la figure 1 ;
  • les figures 3a et 3b représentent schématiquement, en coupe longitudinale, respectivement en position de repos et en cours de distribution, une première variante de l'ensemble de distribution selon l'invention ;
  • les figures 4 et 5 représentent schématiquement en coupe longitudinale deux autres variantes de l'ensemble de distribution selon l'invention ;
  • la figure 6 est une vue, en perspective éclatée, d'une quatrième variante de l'ensemble selon l'invention ;
  • la figure 7 est une vue latérale en perspective de la variante de la figure 6 ;
  • la figure 8 est une vue partielle en coupe longitudinale d'une variante de l'ensemble selon l'invention dans laquelle le clapet est constitué par un mamelon, portant un pointeau, et le dispositif de valve étant à boisseau vertical ;
  • la figure 9 est une vue en perspective de la tête de distribution de l'ensemble de la figure 8 après enlèvement du capot ;
  • la figure 10 est une vue de dessus de la tête de distribution de la figure 9 ;
  • la figure 11 est une vue en coupe longitudinale d'une variante de l'ensemble selon l'invention dans lequel le clapet comporte une pastille et le dispositif de valve est à boisseau horizontal, l'ensemble étant en position de distribution ;
  • la figure 12 est une vue de l'ensemble de la figure 11 en position de fermeture ;
  • la figure 13 est une vue en perspective de la tête de distribution de l'ensemble de la figure 11 ;
  • la figure 14 est une vue latérale de l'ensemble de la figure 11 en position de distribution ;
  • la figure 15 est une vue latérale de l'ensemble de la figure 14 équipé d'un couvercle de protection.
On this drawing:
  • Figure 1 is a longitudinal sectional view of a dispensing assembly according to the invention;
  • Figure 2 is a top view of the piece of flexible material comprising the valve of the distribution assembly of Figure 1;
  • Figures 3 a and 3 b schematically show, in longitudinal section, respectively in the rest position and during dispensing, a first variant of the dispensing assembly according to the invention;
  • Figures 4 and 5 schematically show in longitudinal section two other variants of the dispensing assembly according to the invention;
  • Figure 6 is an exploded perspective view of a fourth variant of the assembly according to the invention;
  • Figure 7 is a perspective side view of the variant of Figure 6;
  • FIG. 8 is a partial view in longitudinal section of a variant of the assembly according to the invention in which the valve consists of a nipple, carrying a needle, and the valve device being with vertical plug;
  • Figure 9 is a perspective view of the dispensing head of the assembly of Figure 8 after removal of the cover;
  • Figure 10 is a top view of the dispensing head of Figure 9;
  • Figure 11 is a longitudinal sectional view of a variant of the assembly according to the invention in which the valve comprises a pellet and the valve device is horizontal plug, the assembly being in the dispensing position;
  • Figure 12 is a view of the assembly of Figure 11 in the closed position;
  • Figure 13 is a perspective view of the dispensing head of the assembly of Figure 11;
  • Figure 14 is a side view of the assembly of Figure 11 in the dispensing position;
  • Figure 15 is a side view of the assembly of Figure 14 equipped with a protective cover.

La figure 1 représente un ensemble de distribution désigné par 1. Cet ensemble se compose d'un récipient en matière plastique souple 2 et d'une tête de distribution désignée dans son ensemble par 3.FIG. 1 represents a dispensing assembly designated by 1. This assembly consists of a flexible plastic container 2 and a dispensing head generally designated by 3.

Le récipient 2 est constitué d'un flacon proprement dit (non représenté) surmonté d'un goulot 21, disposé au-dessus d'un épaulement annulaire plan 22. Le goulot 21 se compose de trois parties coaxiales successives : une première partie cylindrique 23 portant des ailettes radiales 27, une seconde partie 24 ayant une forme généralement tronconique et formant au niveau de sa jonction avec la première partie cylindrique une saillie annulaire 25 de diamètre supérieur à celui de la première jupe cylindrique, et une seconde partie cylindrique 26 de plus petit diamètre.The container 2 consists of a bottle proper (not shown) surmounted by a neck 21, disposed above a plane annular shoulder 22. The neck 21 consists of three successive coaxial parts: a first cylindrical part 23 carrying radial fins 27, a second part 24 having a generally frustoconical shape and forming at its junction with the first cylindrical part an annular projection 25 of diameter greater than that of the first cylindrical skirt, and a second cylindrical part 26 more small diameter.

La tête 3 se compose de trois éléments : un capot extérieur 4 muni sur sa surface supérieure (dans la position représentée sur la figure 1), d'une ouverture circulaire 41, dont le bord sert d'embase au dispositif de fermeture F ; une pièce intermédiaire en matériau souple 5 portant un clapet souple 51; et un réducteur 6. Le réducteur 6 est fixé sur le goulot 21 du flacon, le capot 4 est monté libre en rotation sur le réducteur 6 et la pièce en matériau souple 5 est fixée dans le capot 4 entre ledit capot 4 et le réducteur 6.The head 3 consists of three elements: an outer cover 4 provided on its upper surface (in the position shown in FIG. 1), with a circular opening 41, the edge of which serves as a base for the closing device F; an intermediate piece of flexible material 5 carrying a flexible valve 51; and a reducer 6. The reducer 6 is fixed on the neck 21 of the bottle, the cover 4 is mounted to rotate freely on the reducer 6 and the piece of flexible material 5 is fixed in the cover 4 between said cover 4 and the reducer 6 .

Le réducteur 6 comporte une jupe cylindrique externe 61 divisée en deux parties 61a et 61b reliées par un épaulement 61c La partie inférieure 61a de la jupe externe 61 a un diamètre externe égal au diamètre externe de l'épaulement 22 du récipient 2 de façon à former avec celui-ci une paroi sensiblement continue. La jupe 61a porte un bourrelet interne 62 qui vient se placer par claquage sous la saillie 25 du goulot 21 du flacon 2 ; elle est également munie au-dessous du bourrelet 62 d'ailettes 63 qui coopèrent avec les ailettes 27 de la partie cylindrique 23 du goulot pour empêcher la rotation du réducteur 6 par rapport au goulot 21 du récipient 2. La partie supérieure 61b de la jupe 61 porte un bourrelet annulaire de claquage externe 64 pour la fixation du capot 4 par rapport au réducteur 6, avec libre rotation du capot 4 par rapport au réducteur 6. La jupe 61 porte, à la partie supérieure de la partie 61b, une première collerette annulaire plane 65 portant des bourrelets annulaires 65a tournés vers l'extérieur. La collerette 65 est reliée à une seconde collerette annulaire plane 66 disposée au voisinage du bord supérieur du goulot 21 et de plus faible diamètre que la collerette 65, les deux collerettes 65, 66 étant reliées entre elles par une surface cylindroconique 67. Au-dessous de la collerette 66 est disposée une jupe cylindrique axiale 68 tournée vers le récipient 2 qui a un diamètre externe égal, au jeu nécessaire près, au diamètre interne du goulot 21. Au-dessus du bord interne de la collerette 66 est disposée une jupe cylindrique 69 munie d'une ouverture 70.The reduction gear 6 comprises an external cylindrical skirt 61 divided into two parts 61 a and 61 b connected by a shoulder 61 c The lower part 61 a of the external skirt 61 has an external diameter equal to the external diameter of the shoulder 22 of the container 2 so as to form therewith a substantially continuous wall. The skirt 61 has an internal bead 62 which is placed by snapping under the projection 25 of the neck 21 of the bottle 2; it is also provided below the bead 62 with fins 63 which cooperate with the fins 27 of the cylindrical part 23 of the neck to prevent the reduction of the reduction gear 6 relative to the neck 21 of the container 2. The upper part 61 b of the skirt 61 carries an annular external flange 64 for fixing the cover 4 relative to the reducer 6, with free rotation of the cover 4 relative to the reducer 6. The skirt 61 carries, at the upper part of the part 61 b , a first flat annular flange 65 carrying annular beads 65 has turned outwards. The flange 65 is connected to a second planar annular flange 66 disposed in the vicinity of the upper edge of the neck 21 and of smaller diameter than the flange 65, the two flanges 65, 66 being connected to each other by a cylindrical-conical surface 67. Below of the flange 66 is arranged an axial cylindrical skirt 68 facing the container 2 which has an external diameter equal, apart from the necessary clearance, to the internal diameter of the neck 21. Above the internal edge of the flange 66 is arranged a cylindrical skirt 69 with an opening 70.

Le capot 4 comporte une surface supérieure 42 légèrement bombée, dans laquelle est ménagée l'ouverture 41, ladite ouverture étant située en dehors de l'axe X - X de la tête de distribution 3. A la périphérie de la surface supérieure 42 se raccorde une jupe latérale cylindrique 43 dirigée vers le récipient ; cette jupe 43 s'étend jusqu'au niveau de l'épaulement 61c du réducteur 6. Le bord inférieur de la jupe 43 porte, en relief radial, un indicateur de position 44. Le bord de l'épaulement 61c porte des repères permettant de repérer la rotation du capot 4 par rapport au réducteur 6. Sur la face interne de la surface supérieure 42 est fixée une jupe cylindrique axiale 45 ayant un diamètre externe égal, au jeu nécessaire près, au diamètre interne de la jupe 69 du réducteur 6. La jupe cylindrique axiale 45 est munie d'une ouverture 46 susceptible de coïncider, par rotation du capot 4, avec l'ouverture 70 du réducteur 6. On voit que, dans ce mode de réalisation, le dispositif de valve est formé par les deux jupes 45 et 69 susceptibles de tourner l'une par rapport à l'autre et par les ouvertures 46 et 70. Sur la face interne de la surface supérieure 42 du capot 4 sont disposées deux nervures 47 et 48 destinées à pénétrer dans des rainures de forme correspondante pratiquées dans la pièce 5 comme indiqué ci-après. La jupe latérale 43 est munie d'une nervure radiale 49 qui pénètre dans une encoche 55 de la pièce 5 en matière souple.The cover 4 has a slightly curved upper surface 42, in which the opening 41 is formed, said opening being situated outside the axis X - X of the dispensing head 3. At the periphery of the upper surface 42 is connected a cylindrical side skirt 43 directed towards the container; this skirt 43 extends to the level of the shoulder 61 c of the reducer 6. The lower edge of the skirt 43 carries, in radial relief, a position indicator 44. The edge of the shoulder 61 c carries markers making it possible to identify the rotation of the cover 4 relative to the reducer 6. On the internal face of the upper surface 42 is fixed an axial cylindrical skirt 45 having an external diameter equal, apart from the necessary clearance, to the internal diameter of the skirt 69 of the reducer 6. The axial cylindrical skirt 45 is provided with an opening 46 capable of coinciding, by rotation of the cover 4, with the opening 70 of the reducer 6. It can be seen that, in this embodiment, the valve device is formed by the two skirts 45 and 69 capable of rotating relative to each other and through the openings 46 and 70. On the inner face of the upper surface 42 of the cover 4 are arranged two ribs 47 and 48 intended to penetrate into grooves of corresponding shape pra ticked in room 5 as shown below. The side skirt 43 is provided with a radial rib 49 which penetrates into a notch 55 of the part 5 made of flexible material.

La pièce intermédiaire en matériau souple 5 est constituée d'un voile ayant une forme générale annulaire centré sur l'axe X - X ; ce voile annulaire comporte une partie périphérique pratiquement plane 52a et une partie centrale tronconique 52b inclinée vers le récipient. La pièce 5 est solidarisée de la face interne de la surface supérieure 42 du capot 4 par des rainures 53 et 54 coopérant respectivement avec les nervures 47 et 48 du capot 4 ; elle est munie à sa périphérie d'une encoche 55 coopérant avec la nervure radiale 49 du capot 4. La pièce 5 repose par sa face inférieure sur les bossages 65a du réducteur 6 ; elle est, selon un mode de réalisation avantageux, munie sous la face inférieure de la partie 51a, d'une lame radiale souple (non représentée) qui peut être positionnée dans une rainure ménagée sur la face supérieure du réducteur 6, entre deux ailes parallèles radiales (non représentées) : cette lame, lorsqu'elle vient en place dans sa rainure, quand on tourne la tête 3, produit un léger claquement qui permet à l'utilisateur de déceler, de façon acoustique, le moment où l'on passe de la position d'ouverture à la position de fermeture. Dans la zone centrale de sa partie tronconique 52b, la pièce 5 comporte une jupe cylindrique 56 dont la paroi s'étend de part et d'autre du voile constitutif de la pièce 5 ; au-dessus dudit voile, ladite paroi est supprimée sur environ 150° pour donner naissance à une échancrure 56a. L'échancrure 56a s'ouvre dans une chambre 57 délimitée latéralement par la nervure 48 du capot 4 et la jupe 69 du réducteur 6 et délimitée à sa partie inférieure, par le voile de la pièce en matériau souple 5. La jupe 69 du réducteur 6 est engagée à l'intérieur de la jupe 56, ce qui permet la libre rotation du capot 4 par rapport au réducteur 6. L'ouverture 46 est en vis-à-vis de l'échancrure 56a. L'ouverture 70 du réducteur 6 peut être, selon la position relative du capot 4 et du réducteur 6, située en vis-à-vis de l'ouverture 46 et peut, par conséquent, mettre en communication la chambre 57 avec l'intérieur du récipient.The intermediate piece of flexible material 5 consists of a web having a generally annular shape centered on the axis X - X; this annular veil comprises a practically flat peripheral part 52 a and a frustoconical central part 52 b inclined towards the container. The part 5 is secured to the internal face of the upper surface 42 of the cover 4 by grooves 53 and 54 cooperating respectively with the ribs 47 and 48 of the cover 4; it is provided at its periphery with a notch 55 cooperating with the radial rib 49 of the cover 4. The part 5 rests by its lower face on the bosses 65 a of the reducer 6; it is, according to an advantageous embodiment, provided under the underside of the part 51 a , with a flexible radial blade (not shown) which can be positioned in a groove formed on the upper face of the reducer 6, between two wings radial parallels (not shown): this blade, when it comes into place in its groove, when the head 3 is turned, produces a slight click which allows the user to detect, acoustically, the moment when goes from the open position to the closed position. In the central area of its frustoconical portion 52 b, the part 5 has a cylindrical skirt 56 whose wall extends on either side of the web constituting the workpiece 5; above said veil, said wall is removed over approximately 150 ° to give rise to a notch 56 a . The notch 56 a opens in a chamber 57 delimited laterally by the rib 48 of the cover 4 and the skirt 69 of the reducer 6 and delimited at its lower part, by the veil of the piece of flexible material 5. The skirt 69 of the reducer 6 is engaged inside the skirt 56, which allows free rotation of the cover 4 relative to the reducer 6. The opening 46 is opposite the notch 56 a . The opening 70 of the reducer 6 can be, depending on the relative position of the cover 4 and the reducer 6, located opposite the opening 46 and can, therefore, put the chamber 57 in communication with the interior of the container.

Le clapet 51 est fixé sur la partie tronconique 51b du voile de la pièce 5 et il est disposé dans la chambre 57. Il est constitué d'une pastille 51a supportée par une tige 5b reliée à la périphérie de la pastille 51a. La pastille 51a a, en plan, une forme de segment de cercle, la tige 51b se raccordant selon la corde qui joint les deux extrémités dudit segment de cercle ; elle est disposée dans l'ouverture 41 du capot 4, de façon que, dans la zone de son pourtour non raccordée à la tige 51b, elle puisse coopérer de façon non étanche par sa périphérie avec l'embase rigide fixe constituée par le bord de l'ouverture 41 et former ainsi le dispositif de fermeture F.The valve 51 is fixed to the frustoconical part 51 b of the web of the part 5 and it is arranged in the chamber 57. It consists of a pad 51 a supported by a rod 5 b connected to the periphery of the pad 51 a . The patch 51 a has, in plan, a shape of a circle segment, the rod 51 b being connected according to the cord which joins the two ends of said circle segment; it is arranged in the opening 41 of the cover 4, so that, in the region of its circumference not connected to the rod 51b, it can cooperate in non-leaktight manner via its periphery with the fixed rigid base formed by the edge of the opening 41 and thus form the closing device F.

L'ensemble fonctionne de la façon décrite ci-après. Lorsque l'utilisateur désire distribuer le produit contenu dans le récipient 2, il fait tourner le capot 4 par rapport au réducteur 6 jusqu'à ce que les repères marqués sur l'épaulement 61c du réducteur 6 lui indiquent que les ouvertures 46 de la jupe 45 du capot 4 et 70 de la jupe 69 du réducteur 6 sont disposées en vis-à-vis l'une de l'autre ; le dispositif de valve est ouvert et la communication entre le récipient 2 et la chambre 57 est alors établie. L'utilisateur appuie ensuite sur le récipient 2 en matière souple. Le produit à distribuer passe dans le canal délimité par le goulot 21, les jupes 68, 69 et 45, traverse les ouvertures 46 et 70 et pénètre dans la chambre 57. Sous la poussée du produit, la pastille 51a du clapet 51 s'écarte vers l'extérieur de l'embase fixe constituée par le bord de l'ouverture 41 du capot 4 : la distribution du produit commence. Lorsque l'utilisateur cesse d'appuyer sur le récipient 2, la paroi dudit récipient tend à revenir à sa forme initiale par élasticité et il se forme donc une dépression dans le récipient 2 et dans la chambre 57. La pastille 51a du clapet 51 est aspirée dans ladite chambre 57 ; l'air pénètre dans le récipient 2. Lorsque le récipient 2 est à pression atmosphérique, la pastille 51a revient par élasticité dans sa position de repos où elle coopère de façon non étanche avec l'embase constituée par le bord de l'ouverture 41 du capot 4. L'ensemble 1 est à nouveau fermé et prêt pour une nouvelle utilisation. Si l'utilisateur le désire, par exemple avant de partir en voyage, il peut fermer le dispositif de valve en faisant tourner en sens inverse le capot 4.The assembly operates as described below. When the user wishes to dispense the product contained in the container 2, he rotates the cover 4 relative to the reducer 6 until the marks marked on the shoulder 61 c of the reducer 6 indicate to him that the openings 46 of the skirt 45 of the cover 4 and 70 of the skirt 69 of the reduction gear 6 are arranged opposite one another; the valve device is open and communication between the container 2 and the chamber 57 is then established. The user then presses on the container 2 made of flexible material. The product to be dispensed passes through the channel delimited by the neck 21, the skirts 68, 69 and 45, passes through the openings 46 and 70 and enters the chamber 57. Under the pressure of the product, the pellet 51 has a valve 51 s' spreads outwards from the fixed base formed by the edge of the opening 41 of the cover 4: the distribution of the product begins. When the user stops pressing on the container 2, the wall of said container tends to return to its initial shape by elasticity and there is therefore a depression in the container 2 and in the chamber 57. The pellet 51 has a valve 51 is sucked into said chamber 57; the air enters the container 2. When the container 2 is at atmospheric pressure, the pellet 51 a returns by elasticity to its rest position where it cooperates in a leaktight manner with the base formed by the edge of the opening 41 cover 4. The assembly 1 is again closed and ready for a new use. If the user wishes, for example before leaving on a trip, he can close the valve device by turning cover 4 in the opposite direction.

Les figures 3a et 3b illustrent une variante 101 d'un ensemble selon l'invention dans lequel un capot 104 est mobile en rotation par rapport à un réducteur 106 et où le dispositif de valve est constitué par un système à pointeau.Figures 3 a and 3 b illustrate a variant 101 of an assembly according to the invention in which a cover 104 is movable in rotation relative to a reduction gear 106 and where the valve device is constituted by a needle system.

L'ensemble 101 est constitué par un flacon 102 muni d'un goulot cylindrique 121 disposé sur un épaulement 122 du récipient 102. Le goulot 121 porte un pas de vis externe 123 puis un bourrelet d'arrêt 124 et enfin au voisinage de l'ouverture du goulot sur une zone de plus faible épaisseur un bourrelet de claquage 125. Une tête de distribution 103 est fixée sur le goulot 121: elle comprend un capot 104, une pièce 105 en matériau souple et un réducteur 106.The assembly 101 is constituted by a bottle 102 provided with a cylindrical neck 121 disposed on a shoulder 122 of the container 102. The neck 121 carries an external screw pitch 123 then a stop bead 124 and finally in the vicinity of the opening of the neck on a thinner area a snap strip 125. A dispensing head 103 is fixed on the neck 121: it comprises a cover 104, a piece 105 of flexible material and a reducer 106.

Le réducteur 106 est constitué par une partie annulaire plane 161 portant sur sa périphérie externe une jupe cylindrique 162 tournée vers le récipient. Ladite jupe 162 est munie sur sa paroi interne d'une rainure 163 coopérant avec le bourrelet de claquage 125 du goulot 121 du récipient 2. Une jupe interne 164 est fixée sur le bord interne de la partie annulaire 161 et s'étend de part et d'autre de ladite partie annulaire 161. La jupe 164 a un diamètre externe égal, au jeu nécessaire près, au diamètre interne du goulot 121 et elle est enfoncée dans ledit goulot 121, la partie annulaire plane 161 reposant sur le bord supérieur du goulot 121. La partie supérieure de la jupe 164 est prolongée par une partie tronconique 165 inclinée vers l'axe X - X de symétrie de la tête de distribution 103 ; la partie tronconique 165 est munie d'ouvertures 166. La partie tronconique 165 est fermée par une surface circulaire 167 reliée à sa partie de plus faible diamètre par une paroi cylindrique.The reducer 106 is constituted by a flat annular part 161 carrying on its external periphery a cylindrical skirt 162 facing the container. Said skirt 162 is provided on its internal wall with a groove 163 cooperating with the snap flange 125 of the neck 121 of the container 2. An internal skirt 164 is fixed on the internal edge of the annular part 161 and extends from side to side. on the other of said annular part 161. The skirt 164 has an external diameter equal, apart from the necessary clearance, to the internal diameter of the neck 121 and it is pressed into said neck 121, the planar annular part 161 resting on the upper edge of the neck 121. The upper part of the skirt 164 is extended by a frustoconical part 165 inclined towards the axis X - X of symmetry of the dispensing head 103; the frustoconical part 165 is provided with openings 166. The frustoconical part 165 is closed by a circular surface 167 connected to its part of smaller diameter by a cylindrical wall.

Le capot 104 comporte une surface supérieure plane 142 munie d'une ouverture 141 et fixée par claquage sur une jupe extérieure cylindrique 143 qui s'étend en direction de l'épaulement 122 du récipient 102. Au voisinage de son bord inférieur, la paroi interne de la jupe 143 comprend un filetage 144 qui coopère avec le pas de vis 123 du goulot 121. Au-dessous de la surface supérieure 142, la jupe 143 porte une paroi transversale 145 comportant une ouverture circulaire centrale 148. La paroi transversale 145 comporte, autour de l'ouverture 148, une portée tronconique 146 formée par le bord en biseau de la paroi 145. La portée tronconique 146 a des dimensions complémentaires de la partie tronconique 165. La portée tronconique 146 se prolonge vers le récipient par une jupe cylindrique 147, qui a un diamètre interne égal, au jeu nécessaire près, au diamètre externe de la jupe 164 du réducteur 106.The cover 104 comprises a flat upper surface 142 provided with an opening 141 and fixed by snap-fastening on a cylindrical external skirt 143 which extends in the direction of the shoulder 122 of the container 102. In the vicinity of its lower edge, the internal wall of the skirt 143 comprises a thread 144 which cooperates with the screw pitch 123 of the neck 121. Below the upper surface 142, the skirt 143 carries a transverse wall 145 comprising a central circular opening 148. The transverse wall 145 comprises, around the opening 148, a frustoconical bearing 146 formed by the beveled edge of the wall 145. The frustoconical bearing 146 has dimensions complementary to the frustoconical portion 165. The frustoconical bearing 146 extends towards the container by a cylindrical skirt 147 , which has an internal diameter equal, apart from the necessary clearance, to the external diameter of the skirt 164 of the reducer 106.

La pièce 105 en matière souple est disposée dans le capot 104 entre la surface supérieure 142 et la paroi transversale 145. Cette pièce 105 est creusée d'une chambre 157 dans laquelle débouche l'ouverture 148 de la paroi transversale 145 du capot et qui est disposée sous l'ouverture 141 de la surface supérieure 142 du capot. Au niveau de l'ouverture 141, la pièce 105 comporte le clapet 151. Ce clapet est constitué, en premier lieu, par une partie formant tige 151b qui est formée par une surépaisseur de la pièce 105 compensant l'épaisseur de la surface supérieure 142 du capot, la tige 151b étant en contact avec le bord de l'ouverture 141, et, en second lieu, par une pastille 151a, dont le bord est en contact non étanche avec le bord de l'ouverture 141. La pastille 151a est susceptible de s'écarter, par élasticité, du bord de l'ouverture 141 formant embase aussi bien vers l'extérieur de la tête de distribution 103 que vers l'intérieur de la chambre 157 pour former le dispositif de fermeture F.The piece 105 made of flexible material is disposed in the cover 104 between the upper surface 142 and the transverse wall 145. This piece 105 is hollowed out of a chamber 157 into which the opening 148 opens out of the transverse wall 145 of the cover and which is disposed under the opening 141 of the upper surface 142 of the cover. At the opening 141, the part 105 comprises the valve 151. This valve is formed, first of all, by a part forming a rod 151 b which is formed by an extra thickness of the piece 105 compensating for the thickness of the upper surface 142 of the cover, the rod 151 b being in contact with the edge of the opening 141, and, secondly, by a pellet 151 a , the edge is in leaktight contact with the edge of the opening 141. The patch 151 a is capable of deviating, by elasticity, from the edge of the opening 141 forming a base as well towards the outside of the dispensing head 103 inwardly of the chamber 157 to form the closing device F.

Le dispositif fonctionne de la façon décrite ci-après. Lorsque l'utilisateur désire distribuer le produit contenu dans le récipient 102, il commence par ouvrir le système de sécurité de type pointeau formé par la surface tronconique 165 du réducteur 106 et par la surface tronconique 146. Dans ce but, il fait tourner le capot 104 ; grâce au filetage 123/144, le capot 104 est animé d'un mouvement de translation linéaire vers le haut le long de l'axe X - X ; l'ouverture 148 se dégage de la surface circulaire 167 qui formait obturateur et il se forme entre les surfaces tronconiques 165 et 146 un canal annulaire qui met en communication, à travers les ouvertures 166 et l'ouverture 148, l'intérieur du goulot 121 et la chambre 157. La rotation du capot 104 est bloquée par butée contre le bourrelet 124.The device operates as described below. When the user wishes to dispense the product contained in the container 102, he begins by opening the needle type security system formed by the frustoconical surface 165 of the reducer 106 and by the frustoconical surface 146. To this end, he rotates the cover 104; thanks to the thread 123/144, the cover 104 is driven in a linear translational movement upwards along the axis X - X; the opening 148 emerges from the circular surface 167 which formed a shutter and an annular channel is formed between the frustoconical surfaces 165 and 146 which places the interior of the neck 121 through the openings 166 and the opening 148 and the chamber 157. The rotation of the cover 104 is blocked by abutment against the bead 124.

L'utilisateur appuie ensuite sur le récipient 102. Le produit sort du récipient en passant par le goulot 121, le conduit défini par la jupe 164, les ouvertures 166, l'espace annulaire ménagé entre les surfaces coniques 165 et 146, à l'ouverture 148 et la chambre 157. Sous la poussée du produit, la pastille 151a du clapet 151 s'écarte par élasticité du bord de l'ouverture 141 du capot formant embase. Lorsque l'utilisateur cesse de presser sur le récipient 102, la dépression formée dans le récipient 102 et la chambre 157 par le retour élastique de la paroi du récipient provoque une reprise d'air. Sous l'effet de l'aspiration d'air, la pastille 151a s'écarte par flexion vers l'intérieur de la chambre 157. Lorsque la reprise d'air est terminée, la pastille 151a revient en position de repos en contact non étanche avec le bord de l'ouverture 141 formant embase.The user then presses on the container 102. The product leaves the container via the neck 121, the conduit defined by the skirt 164, the openings 166, the annular space formed between the conical surfaces 165 and 146, at the opening 148 and the chamber 157. Under the thrust of the product, the pellet 151 a of the valve 151 diverges by elasticity from the edge of the opening 141 of the cover forming a base. When the user stops pressing on the container 102, the depression formed in the container 102 and the chamber 157 by the elastic return of the wall of the container causes an air intake. Under the effect of the air suction, the pellet 151 a deviates by bending towards the inside of the chamber 157. When the air intake is finished, the pellet 151 a returns to the rest position in contact. not waterproof with the edge of the opening 141 forming a base.

Les figures 4 et 5 représentent deux variantes 201, 301 d'un ensemble de distribution selon l'invention dans lequel le dispositif de valve de la tête de distribution 203, 303 est du type à pointeau. Dans ces deux variantes, les goulots 221 et 321 du récipient, les réducteurs 206 et 306 respectivement sont identiques à ceux (121 et 106) de l'ensemble représenté sur les figures 3a et 3b. La forme de la pièce 205, 305 en matière élastique ainsi que la partie supérieure du capot 204, 304 sont seules modifiées par rapport à la réalisation de la figure 3.Figures 4 and 5 show two variants 201, 301 of a dispensing assembly according to the invention in which the valve device of the dispensing head 203, 303 is of the needle type. In these two variants, the necks 221 and 321 of the container, reducing 206 and 306 respectively are identical to those (121 and 106) of the assembly shown in Figures 3 a and 3 b. The shape of the piece 205, 305 made of elastic material as well as the upper part of the cover 204, 304 are the only ones modified with respect to the embodiment of FIG. 3.

Dans le mode de réalisation représenté sur la figure 4, la surface supérieure du capot a été supprimée et la pièce 205 en matière élastique est fixée par emboîtage sur une paroi transversale 245. La paroi transversale 245 comporte un relief 246 formant à sa partie supérieure une ligne courbe non fermée qui traverse la pièce 205 en matériau souple et définit ainsi dans la pièce 205 un clapet 251. Pour améliorer la flexibilité du clapet, la base de celui-ci, c'est-à-dire la partie qui n'est pas en contact avec le relief 246 et lui est opposée, est amincie par une rainure 252. Le dispositif de fermeture F est donc formé par le bord du clapet 251 qui est en contact non étanche avec la paroi latérale du relief 246. Une chambre 257 est ménagée sous le clapet 251.In the embodiment shown in Figure 4, the upper surface of the cover has been removed and the part 205 of elastic material is fixed by fitting on a transverse wall 245. The transverse wall 245 has a relief 246 forming at its upper part a unclosed curved line which crosses the part 205 of flexible material and thus defines in the part 205 a valve 251. To improve the flexibility of the valve, the base thereof, that is to say the part which is not not in contact with the relief 246 and is opposite to it, is thinned by a groove 252. The closing device F is therefore formed by the edge of the valve 251 which is in leaktight contact with the side wall of the relief 246. A chamber 257 is provided under the valve 251.

Dans le mode de réalisation représenté sur la figure 5, la pièce 305 en matière plastique souple est disposée à l'intérieur du capot 304 entre une surface supérieure 342 et une paroi transversale 345. Dans le mode de réalisation représenté, l'ouverture 341 n'est pas ménagée sur la surface supérieure 342, mais sur une partie inclinée 343 de la paroi latérale. Le clapet 351 est constitué par une pastille, qui, en position de repos, est inclinée de façon à être dans le plan de la paroi inclinée 343 ; cette pastille est une partie amincie de la pièce 305 de façon à obtenir un clapet flexible ; on ménage dans la pièce 305 une chambre 357 disposée en arrière de la pastille qui forme le clapet.In the embodiment shown in FIG. 5, the piece 305 of flexible plastic material is disposed inside the cover 304 between an upper surface 342 and a transverse wall 345. In the embodiment shown, the opening 341 n is not provided on the upper surface 342, but on an inclined part 343 of the side wall. The valve 351 consists of a pellet, which, in the rest position, is inclined so as to be in the plane of the inclined wall 343; this pellet is a thinned part of the part 305 so as to obtain a flexible valve; room 357 is housed in a chamber 357 disposed behind the pellet which forms the valve.

Les figures 6 et 7 représentent un ensemble 401 selon l'invention dans lequel le système de valve est formé par un système à boisseau vertical constitué par deux jupes munies d'ouvertures superposables, mobiles en rotation l'une par rapport à l'autre. Mais dans ce mode de réalisation, contrairement à celui représenté sur la figure 1, le capot 404 est fixe par rapport au récipient et le réducteur 406 est mobile en rotation. L'ensemble 401 comprend un récipient 402 en matière plastique souple muni d'un goulot 421 fixé sur un épaulement 422. La paroi latérale du récipient et l'épaulement sont pourvus d'une échancrure 423 faisant saillie à l'intérieur du récipient dont les parois latérales 423a sont constituées par des plans radiaux, la paroi de fond 423b par un secteur cylindrique et la paroi inférieure par un segment annulaire 42c. A la jonction entre l'épaulement 422 et le récipient 402 est ménagée une gorge 424 portant un cordon de claquage 425. Le goulot 421 porte extérieurement un bourrelet de claquage 426 permettant la fixation du réducteur 406 de la tête de distribution 403 de façon mobile en rotation.Figures 6 and 7 show an assembly 401 according to the invention in which the valve system is formed by a vertical plug system constituted by two skirts provided with stackable openings, movable in rotation relative to each other. But in this embodiment, unlike that shown in Figure 1, the cover 404 is fixed relative to the container and the reduction gear 406 is movable in rotation. The assembly 401 comprises a container 402 of flexible plastic material provided with a neck 421 fixed on a shoulder 422. The side wall of the container and the shoulder are provided with a notch 423 projecting inside the container, the side walls 423 a are formed by radial planes, the bottom wall 423 b by a cylindrical sector and the lower wall by an annular segment 42 c . At the junction between the shoulder 422 and the container 402 is provided a groove 424 carrying a snap cord 425. The neck 421 externally carries a snap bead 426 allowing the fixing of the reducer 406 of the dispensing head 403 in a movable manner. rotation.

Le réducteur 406 comporte une première jupe 461 et une seconde jupe 463 séparée par un épaulement. La jupe 461 a un diamètre tel qu'elle puisse se fixer par claquage sur le goulot 421. La jupe 461 porte un bouton de manoeuvre 462 fixé sur une tige que l'on dispose dans l'échancrure 423 : le bouton de manoeuvre 462 dépasse juste de l'échancrure 423. La jupe 463 a un diamètre plus faible que la jupe 461 et elle est munie sur son bord supérieur libre d'une échancrure 464. Le capot 404 comporte une surface supérieure circulaire 442 percée d'une ouverture décentrée 441. A la périphérie de la surface supérieure 442 est disposée une jupe externe cylindrique 443 dont le bord inférieur vient se fixer par claquage dans la gorge 424. La face inférieure de la surface 442 porte une jupe cylindrique intérieure 444, dont le bord est muni d'une ouverture 445. La jupe 444 est enfilée à l'intérieur de la jupe 463.The reduction gear 406 has a first skirt 461 and a second skirt 463 separated by a shoulder. The skirt 461 has a diameter such that it can be fixed by snapping on the neck 421. The skirt 461 carries an operating button 462 fixed on a rod which is placed in the notch 423: the operating button 462 protrudes just the notch 423. The skirt 463 has a smaller diameter than the skirt 461 and it is provided on its free upper edge with a notch 464. The cover 404 has a circular upper surface 442 pierced with an off-center opening 441 At the periphery of the upper surface 442 is disposed a cylindrical outer skirt 443, the lower edge of which is fixed by snapping into the groove 424. The underside of the surface 442 carries an internal cylindrical skirt 444, the edge of which is provided with an opening 445. The skirt 444 is threaded inside the skirt 463.

Une pièce 405 en matière élastique souple est fixée sous la surface supérieure 442 du capot 404 ; elle comporte une jupe 452, qui entoure la jupe 463 du réducteur ; le clapet 451 est une pastille 451a portée par la bordure supérieure de la jupe 452, ladite pastille étant reliée à la jupe par une zone de faible largeur constituant une tige 451b. La pastille du clapet 451 se place, en position de repos, à l'intérieur de l'ouverture 441 du capot 404. La chambre ménagée sous le clapet 451, entre les jupes 452 et 463, est en communication avec l'ouverture 464 du réducteur 406.A piece 405 of flexible elastic material is fixed under the upper surface 442 of the cover 404; it comprises a skirt 452, which surrounds the skirt 463 of the reducer; the valve 451 is a wafer 451 is carried by the upper edge of the skirt 452, said wafer being connected to the skirt by a zone of small width comprising a rod 451 b. The disc of the valve 451 is placed, in the rest position, inside the opening 441 of the cover 404. The chamber provided under the valve 451, between the skirts 452 and 463, is in communication with the opening 464 of the reducer 406.

Selon ce mode de réalisation, pour ouvrir et fermer le dispositif de valve, on agit sur le bouton de manoeuvre 462 entre des positions limites déterminées par les plans radiaux 423a. On fait ainsi tourner le réducteur 406 entre une position ouverte où les ouvertures 464 et 445 coïncident et une position fermée où ces ouvertures ne coïncident plus.According to this embodiment, to open and close the valve device, the operating button 462 is acted between limit positions determined by the radial planes 423 a . The reducer 406 is thus made to rotate between an open position where the openings 464 and 445 coincide and a closed position where these openings no longer coincide.

Selon un autre mode de réalisation préféré, l'organe de manoeuvre 462 peut être remplacé par une molette faisant le tour du réducteur 406. Selon cette réalisation, le capot 404 et le flacon 402 ont une forme généralement ovale. Une échancrure est prévue sur les deux côtés de faible courbure du capôt de telle sorte que cette molette soit manoeuvrable entre le pouce et l'index de l'utilisateur.According to another preferred embodiment, the operating member 462 can be replaced by a thumb wheel going around the reduction gear 406. According to this embodiment, the cover 404 and the bottle 402 have a generally oval shape. A notch is provided on the two sides of small curvature of the hood so that this wheel is maneuverable between the thumb and the index finger of the user.

Les figures 8 à 10 représentent une variante de l'ensemble selon l'invention dans laquelle le clapet du système de fermeture est constitué par un mamelon élastique portant un pointeau qui s'écrase sous la pression du produit, de façon telle que le pointeau dégage par translation l'embase, et le dispositif de valve est un système à boisseau horizontal. Dans cette variante, l'ensemble de distribution est désigné dans son ensemble par 501 ; il se compose d'un récipient en matière souple 502 représenté partiellement sur le dessin et d'une tête de distribution désignée dans son ensemble par 503. La tête 503 est constituée de trois éléments : un capot extérieur 504 muni sur sa surface supérieure d'une ouverture circulaire 541 servant d'embase au système de fermeture F ; une pièce intermédiaire en matériau élastique 505 ; et un réducteur 506. Le réducteur 506 est fixé sur le flacon ; la pièce intermédiaire en matériau souple 505 porte un clapet 551 coopérant avec l'ouverture 541 ; le capot 504 forme un ensemble mobile en rotation, autour de l'axe vertical X-X du goulot, par rapport au réducteur 506.Figures 8 to 10 show a variant of the assembly according to the invention in which the valve of the closure system is constituted by an elastic nipple carrying a needle which is crushed under the pressure of the product, so that the needle releases by translation the base, and the valve device is a horizontal plug system. In this variant, the distribution assembly is designated as a whole by 501; it consists of a flexible material container 502 shown partially in the drawing and of a dispensing head designated as a whole by 503. The head 503 consists of three elements: an outer cover 504 provided on its upper surface with a circular opening 541 serving as a base for the closing system F; an intermediate piece of elastic material 505; and a reducer 506. The reducer 506 is fixed to the bottle; the intermediate piece of flexible material 505 carries a valve 551 cooperating with the opening 541; the cover 504 forms a movable assembly in rotation about the vertical axis X-X of the neck, relative to the reduction gear 506.

Le flacon 502 est muni d'un goulot 521 de plus faible diamètre portant une saillie annulaire 525. Le réducteur 506 comporte une jupe externe portant sur sa paroi interne une gorge 562, dans laquelle vient se placer, par claquage, la saillie annulaire 525 du goulot. Un système d'ailettes (non représenté), fixées sur le goulot et sur la paroi interne de la jupe 561, empêche toute rotation du réducteur 506 par rapport au goulot 521. La jupe 561 porte à sa partie supérieure une collerette annulaire plane 565, qui est reliée par l'intermédiaire d'une surface tronconique 567 tournée vers le récipient à une cheminée axiale 569 munie d'une ouverture 570. Au-dessous de la collerette 565 est disposée une jupe cylindrique d'étanchéité axiale 568, tournée vers le récipient 502, qui a un diamètre externe égal, au jeu nécessaire près, au diamètre interne du goulot 521.The bottle 502 is provided with a neck 521 of smaller diameter carrying an annular projection 525. The reduction gear 506 comprises an external skirt carrying on its internal wall a groove 562, in which the annular projection 525 of the neck. A system of fins (not shown), fixed on the neck and on the internal wall of the skirt 561, prevents any rotation of the reduction gear 506 relative to the neck 521. The skirt 561 carries at its upper part a flat annular collar 565, which is connected via a frustoconical surface 567 facing the container to an axial chimney 569 provided with an opening 570. Below the flange 565 is disposed a cylindrical axial sealing skirt 568, facing the container 502, which has an external diameter equal, apart from the necessary clearance, to the internal diameter of the neck 521.

Le capot 504 comporte une surface supérieure 542 légèrement bombée, dans laquelle est ménagée une ouverture 541, ouverture située en dehors de l'axe X - X de la tête de distribution 503. A la périphérie de la surface supérieure 542 se raccorde une jupe cylindrique latérale 543 dirigée vers le récipient et fixée en rotation par un système bourrelet-gorge sur la paroi externe de la jupe 561 du réducteur 506. Sur la face interne de la surface 542 est ménagée une jupe 544 formant saillie annulaire ayant un diamètre inférieur à celui de la jupe 543. Une chambre 545 en forme de dôme est ménagée dans la surface 542 autour de l'ouverture 541, cette chambre étant tangente à la jupe 544. La face interne de la surface 542 porte également une saillie 546 en forme d'arc de cercle ouvert en direction de la chambre 545, cette saillie 546 entourant la cheminée 569 et ayant un diamètre supérieur à celui de ladite cheminée 569. Ladite face interne porte également une jupe cylindrique axiale 547 ayant un diamètre externe égal, au jeu nécessaire près, au diamètre interne de la cheminée 569. Dans cette jupe 547 est ménagée une ouverture 548 susceptible de coïncider, par rotation du capot 504 par rapport au réducteur 506, avec l'ouverture 570 de la cheminée 569 pour la position de distribution.The cover 504 has a slightly curved upper surface 542, in which an opening 541 is formed, an opening situated outside the axis X - X of the dispensing head 503. At the periphery of the upper surface 542 is connected a cylindrical skirt lateral 543 directed towards the container and fixed in rotation by a bead-groove system on the external wall of the skirt 561 of the reducer 506. On the internal face of the surface 542 is formed a skirt 544 forming an annular projection having a diameter less than that of the skirt 543. A chamber 545 in the form of a dome is formed in the surface 542 around the opening 541, this chamber being tangent to the skirt 544. The internal face of the surface 542 also carries a projection 546 in the form of arc of a circle open towards chamber 545, this projection 546 surrounding the chimney 569 and having a diameter greater than that of said chimney 569. Said internal face also carries a ju eg axial cylindrical 547 having an external diameter equal, up to the necessary clearance, to the internal diameter of the chimney 569. In this skirt 547 is formed an opening 548 capable of coinciding, by rotation of the cover 504 relative to the reducer 506, with the opening 570 of the chimney 569 for the distribution position.

La pièce intermédiaire 505 en matériau souple comporte une surface annulaire généralement plane 552 perpendiculaire à l'axe X - X de la tête 503. Sur cette surface plane 552 est ménagé le clapet 551, qui a la forme d'un dôme portant un pointeau 551a susceptible de fermer l'ouverture 541 du capot 504 ; la partie supérieure du pointeau 551a et le bord de l'ouverture 541 forme le système de fermeture F. La surface annulaire plane 552 est bordée à sa périphérie par une jupe 553, qui s'insère entre la jupe 543 et la saillie 544 du capot 504. Elle porte également deux jupes 554 et 555 en forme d'arc de cercle ; la jupe 554 est constituée par un arc de cercle ayant un diamètre interne égal, au jeu nécessaire près, au diamètre externe de la cheminée 569 et les deux jupes 554 et 555 ménagent entre elles un espace tel que la jupe 546 du capot 504 puisse s'y insérer. L'angle ouvert laissé par les différentes jupes en arc de cercle 554, 546 et 555 est tel que l'ouverture 570 de la cheminée 569 soit libre pour une position du sous-ensemble mobile 504-505 par rapport au sous-ensemble fixe 502-506, position qui correspond à la distribution. Sous la surface annulaire plane 552 est disposée une saillie en forme de tronc de cône qui se place entre la paroi tronconique 567 et la cheminée 569 du réducteur 506.The intermediate piece 505 of flexible material has a generally planar annular surface 552 perpendicular to the axis X - X of the head 503. On this planar surface 552 is formed the valve 551, which has the shape of a dome carrying a needle 551 is capable of closing the opening 541 of the cover 504; the upper part of the needle 551 a and the edge of the opening 541 forms the closure system F. The planar annular surface 552 is bordered at its periphery by a skirt 553, which is inserted between the skirt 543 and the projection 544 of the cover 504. It also carries two skirts 554 and 555 in the shape of an arc of a circle; the skirt 554 is constituted by a circular arc having an internal diameter equal, apart from the necessary clearance, to the external diameter of the chimney 569 and the two skirts 554 and 555 provide between them a space such that the skirt 546 of the cover 504 can s 'insert there. The open angle left by the various semi-circular skirts 554, 546 and 555 is such that the opening 570 of the chimney 569 is free for a position of the sub-assembly mobile 504-505 relative to the fixed sub-assembly 502-506, position which corresponds to the distribution. Under the planar annular surface 552 is disposed a projection in the form of a frustoconical cone which is placed between the frustoconical wall 567 and the chimney 569 of the reducer 506.

Le dispositif 501 fonctionne de la façon suivante : lorsque l'utilisateur désire distribuer le produit contenu dans le récipient 502, il fait tourner l'ensemble solidaire constitué par le capot 504 et la pièce intermédiaire 505 par rapport au réducteur 506 jusqu'à ce que l'ouverture 548 de la jupe 547 du capot 504 coïncide avec l'ouverture 570 de la cheminée 569 ; dans cette position, l'ouverture 570 se trouve en vis-à-vis de l'angle ouvert prévu dans les jupes concentriques 554, 546 et 555. L'utilisateur presse ensuite sur le récipient 502 et le produit contenu dans ce récipient pénètre dans la cheminée 569 et, après avoir traversé les ouvertures 548 et 570, pénètre dans la chambre 545. Le produit exerce une pression sur le dôme 551 qui se déforme et s'aplatit vers l'intérieur de la chambre 545 en donnant au pointeau 551a un mouvement de translation, qui dégage l'ouverture 541 du capot 504. Le produit peut alors sortir. Lorsque l'utilisateur cesse d'appuyer sur le récipient 502, le produit cesse d'exercer une pression sur le dôme 551 qui revient à sa forme initiale, le pointeau 551a revenant par translation fermer l'ouverture 541. L'ensemble 501 est alors à nouveau fermé. S'il le désire, l'utilisateur peut fermer le dispositif de valve en faisant tourner en sens inverse le capot 504 par rapport au récipient 502.The device 501 operates as follows: when the user wishes to dispense the product contained in the container 502, he rotates the integral assembly constituted by the cover 504 and the intermediate piece 505 relative to the reducer 506 until the opening 548 of the skirt 547 of the cover 504 coincides with the opening 570 of the chimney 569; in this position, the opening 570 is opposite the open angle provided in the concentric skirts 554, 546 and 555. The user then presses on the container 502 and the product contained in this container enters the chimney 569 and, after having passed through the openings 548 and 570, enters the chamber 545. The product exerts a pressure on the dome 551 which deforms and flattens towards the interior of the chamber 545 giving the needle 551 a a translational movement, which releases the opening 541 of the cover 504. The product can then exit. When the user stops pressing on the container 502, the product ceases to exert pressure on the dome 551 which returns to its initial shape, the needle 551 a returning by translation to close the opening 541. The assembly 501 is then closed again. If desired, the user can close the valve device by rotating the cover 504 in the opposite direction relative to the container 502.

Les figures 11 à 15 représentent un mode de réalisation d'un disposif de distribution selon l'invention dans lequel le clapet a la forme d'une pastille et le dispositif de valve est à boisseau horizontal. Sur ces figures, le dispositif de distribution est désigné dans son ensemble par la référence 601 ; il est constitué d'un flacon souple 602 sur le goulot 621 duquel est vissée une tête de distribution désignée dans son ensemble par 603. La tête de distribution 603 est formée par l'assemblage de trois éléments : un capot 604 comportant une ouverture 641 circulaire, une pièce intermédiaire flexible 605 comportant le clapet 651 coopérant avec le bord de l'ouverture 641 pour former le système de fermeture F et un réducteur 606 ; le réducteur 606 est fixe et l'ensemble constitué par le capot 604 et la pièce intermédiaire 605 est mobile en rotation par rapport au réducteur 606, autour d'un axe horizontal perpendiculaire à l'axe X-X longitudinal vertical du dispositif de distribution.Figures 11 to 15 show an embodiment of a dispensing device according to the invention in which the valve has the shape of a pellet and the valve device is horizontal plug. In these figures, the dispensing device is designated as a whole by the reference 601; it consists of a flexible bottle 602 on the neck 621 from which is screwed a dispensing head generally designated by 603. The dispensing head 603 is formed by the assembly of three elements: a cover 604 having a circular opening 641 , a flexible intermediate piece 605 comprising the valve 651 cooperating with the edge of the opening 641 to form the closing system F and a reduction gear 606; the reduction gear 606 is fixed and the assembly constituted by the cover 604 and the intermediate piece 605 is movable in rotation relative to the reduction gear 606, about an axis horizontal perpendicular to the vertical longitudinal axis XX of the dispensing device.

Le réducteur 606 est constitué d'une jupe 661 cylindrique munie, sur sa face interne, d'un pas de vis coopérant avec un pas de vis complémentaire du goulot 621 du flacon 602. Sur le bord supérieur de la jupe 661 est ménagée une surface plane annulaire 662 ; cette surface 662 est munie, côté flacon, d'une jupe d'étanchéité 663 se plaçant à l'intérieur du goulot 621Sur l'autre face de la surface 662 est disposée un conduit axial 664 muni à son extrémité la plus éloignée du flacon d'un boisseau cylindrique 665 dont l'axe est perpendiculaire à l'axe longitudinal X - X du dispositif de distribution 601. Ce boisseau 665 est muni d'une fente 666 diamétralement opposée au conduit 664.The reducer 606 consists of a cylindrical skirt 661 provided, on its internal face, with a screw pitch cooperating with a complementary screw pitch of the neck 621 of the bottle 602. On the upper edge of the skirt 661 is provided a surface annular plane 662; this surface 662 is provided, on the bottle side, with a sealing skirt 663 placed inside the neck 621 On the other face of the surface 662 is disposed an axial duct 664 provided at its end furthest from the bottle d 'A cylindrical plug 665 whose axis is perpendicular to the longitudinal axis X - X of the dispensing device 601. This plug 665 is provided with a slot 666 diametrically opposite the conduit 664.

Le capot 604 est composé de deux coquilles 642 et 643 assemblées par emboîtage ; lors de l'assemblage des deux coquilles, on ménage deux ouvertures disposées sur l'axe horizontal du boisseau, ouvertures dans lesquelles sont disposées des tourillons 644 solidaires des extrémité s du boisseau 665 et guidant la rotation du sous-ensemble (capot 604/pièce intermédiaire 605) élastique autour du boisseau 665. La coquille supérieure 643 comporte l'ouverture 641. Elle comporte une saillie interne 645, qui sert d'appui à la tige portant le clapet 651. Entre les deux coquilles 642 et 643 est ménagée une chambre 646. Dans la coquille inférieure 642 est ménagé un dégagement 647 permettant la rotation du capot 604 entre une position de distribution et une position de repos ; dans ces deux positions extrêmes, le conduit 664 du réducteur 606 vient en butée contre la paroi du dégagement 667. La pièce intermédiaire souple 605 porte la pastille formant clapet 651 par l'intermédiaire d'une tige 652 qui est en appui contre la saillie 645 de la coquille 643 , elle comporte une lame 653 qui repose sur la face interne de la coquille 642 , à son extrémité opposée à celle portant le clapet 651, elle est munie d'un élément en forme de segment de cylindre 654 ayant des dimensions telles qu'il puisse tourillonner autour du boisseau 665. Dans cet élément 654 est ménagée une fente 655 susceptible de coïncider par rotation avec la fente 666 du boisseau 665.The cover 604 is composed of two shells 642 and 643 assembled by fitting together; during the assembly of the two shells, two openings are arranged on the horizontal axis of the plug, openings in which are arranged pins 644 integral with the ends of the plug 665 and guiding the rotation of the sub-assembly (cover 604 / piece intermediate 605) elastic around the plug 665. The upper shell 643 has the opening 641. It has an internal projection 645, which serves as a support for the rod carrying the valve 651. Between the two shells 642 and 643 is formed a chamber 646. In the lower shell 642 is formed a clearance 647 allowing the rotation of the cover 604 between a dispensing position and a rest position; in these two extreme positions, the conduit 664 of the reduction gear 606 abuts against the wall of the clearance 667. The flexible intermediate piece 605 carries the disc forming a valve 651 by means of a rod 652 which is in abutment against the projection 645 shell 643, it comprises a blade 653 which rests on the internal face of shell 642, at its end opposite to that carrying the valve 651, it is provided with an element in the form of a cylinder segment 654 having dimensions such that it can pivot around the plug 665. In this element 654 is formed a slot 655 capable of coinciding by rotation with the slot 666 of the plug 665.

En position de repos, comme on peut le voir sur la figure 12, le sous-ensemble (capot 604/pièce intermédiaire 605) est disposé verticalement. La tête de distribution 603 peut être alors protégée par un couvercle 607 (figure 15) fixé par claquage sur un bourrelet 622 du flacon souple 602.In the rest position, as can be seen in FIG. 12, the sub-assembly (cover 604 / intermediate piece 605) is arranged vertically. The dispensing head 603 can then be protected by a cover 607 (FIG. 15) fixed by snap-fastening on a bead 622 of the flexible bottle 602.

Lorsque l'utilisateur désire distribuer le produit, il opère de la façon décrite ci-après : il enlève, si nécessaire le couvercle 607 pour dégager la tête de distribution 603 ; il fait tourner cette dernière autour des tourillons 644 jusqu'à ce que le conduit 664 vienne en butée contre la paroi du dégagement 647.When the user wishes to dispense the product, he operates in the manner described below: he removes, if necessary, the cover 607 to release the dispensing head 603; it rotates the latter around the pins 644 until the conduit 664 abuts against the wall of the clearance 647.

Dans cette position, l'ouverture 666 est en vis-à-vis de l'ouverture 655 et le flacon 602 est en communication avec la chambre 646. L'utilisateur exerce alors manuellement une pression sur le flacon souple 602. Le produit contenu dans le flacon 602 sort alors par le goulot 621, traverse le conduit 664 et les ouvertures ou fentes 666 et 655 pour pénétrer dans la chambre 646. Sous la poussée du produit, la pastille 651 du clapet s'écarte vers l'extérieur de l'embase fixe constituée par le bord de l'ouverture 641 du capot 604 : la distribution du produit commence. Lorsque l'utilisateur cesse d'appuyer, sur le récipient 602, la paroi de celui-ci tend à revenir à sa forme initiale par élasticité et il se forme une dépression dans le récipient 602, et dans la chambre 646 ; la pastille 651 est aspirée dans la chambre 646; l'air pénètre dans le récipient et lorsque le récipient 602 est revenu à pression atmosphérique, la pastille 651 revient par élasticité à sa position de repos, où elle coopère de façon non étanche avec le bord de l'ouverture 641 du capot 604. L'utilisateur peut alors, s'il le juge nécessaire, fermer le dispositif de valve en ramenant par rotation la tête de distribution en position verticale et protéger la tête de distribution à l'aide du couvercle 607.In this position, the opening 666 is opposite the opening 655 and the bottle 602 is in communication with the chamber 646. The user then manually exerts pressure on the flexible bottle 602. The product contained in the bottle 602 then exits through the neck 621, crosses the conduit 664 and the openings or slots 666 and 655 to enter the chamber 646. Under the pressure of the product, the disc 651 of the valve moves towards the outside of the fixed base formed by the edge of the opening 641 of the cover 604: the distribution of the product begins. When the user stops pressing on the container 602, the wall of the latter tends to return to its initial shape by elasticity and a depression is formed in the container 602, and in the chamber 646; the pellet 651 is sucked into the chamber 646; the air enters the container and when the container 602 is returned to atmospheric pressure, the pellet 651 resiliently returns to its rest position, where it cooperates in a leaktight manner with the edge of the opening 641 of the cover 604. L the user can then, if he deems it necessary, close the valve device by rotating the dispensing head in a vertical position and protect the dispensing head with the cover 607.

Claims (16)

  1. A unit (101, 201, 301, 401, 501) for dispensing at least one liquid product or cream comprising a container (2, 102, 202, 302, 402, 502, 602) and a dispensing head (3, 103, 203, 403, 503, 603), the said dispensing head including at least one dispensing duct closed at its end communicating with the outside by means of a closing device (F) comprising a flexible valve (51, 151, 251, 351, 451, 551, 651) that is deformable by elasticity under the pressure of the product to be dispensed and cooperating in its rest position in a nonleakproof manner with a fixed rigid seat (41, 141, 241, 341, 441, 541, 641), characterized in that the said valve (51, 151, 251, 351, 451, 551, 651) moves away from the said seat (41, 141, 241, 341, 441, 541, 641) by elastic deformation under the pressure of the product to be dispensed, then places itself into a position that is different from its rest position allowing air to be taken up again, which position is situated inside the dispensing head relative to the rigid fixed seat.
  2. A unit according to claim 1, characterized in that it includes ahead of the closing device (F) a valve device allowing the communication between the container and the closing device to be cut.
  3. A unit according to one of claims 1 or 2, characterized in that in the rest position, the valve (51, 151, 251, 351, 451, 651) cooperates edge to edge with the rigid seat (41, 141, 241, 341, 441), the valve moving away from the said seat towards the outside of the dispensing head (3, 103, 203, 303, 403, 503) under the pressure of the product to be dispensed, then towards the inside into a space (57, 157, 257, 357, 457, 646) arranged for this purpose, allowing air to be taken up again when the dispensing stops, and finally returning into its rest position when the renewed air intake has been completed.
  4. A unit according to one of claims 1 to 3, characterized in that the valve (51, 451) has the shape of a tablet (51a, 451a) supported by a shank (51b, 451b).
  5. A unit according to claim 4, characterized in that the shank (51b) is joined to the circumference of the tablet (51a).
  6. A unit according to claim 5, characterized in that, viewed in plan, the tablet (51a) has the shape of a circular segment, the shank (51b) being joined on the side of the chord delimiting the said circular segment.
  7. A unit according to one of claims 1 to 3, characterized in that the valve (151, 251, 351) is constituted by a thin tablet forming part of a component (105, 205, 305) made of a flexible material and being joined directly to the said component.
  8. A unit according to one of claims 1 or 2, characterized in that the valve is constituted by an elastic nipple (551) carrying at its top a valve needle (551a) cooperating with the seat (541), the nipple being squashed under the pressure of the product to be dispensed so that the needle releases the seat (541), and returning into its rest position in cooperation with the seat when the dispensing stops.
  9. A unit according to one of claims 1 to 8, characterized in that the rigid seat is constituted by the edge of an opening (41, 141, 341, 441) arranged in the surface (42, 142, 342, 442) of a cap (4, 104, 304, 404) constituting the outer surface of the dispensing head.
  10. A unit according to one of claims 1 to 9, characterized in that the valve (51, 151, 351, 451) forms part of a component (5, 105, 305, 405) joined to the cap (4, 104, 304, 404) inside the dispensing head (3, 103, 303, 403).
  11. A unit according to claim 9, characterized in that the opening whose edge defines the seat is disposed in the axis of the neck of the container.
  12. A unit according to claim 9, characterized in that the opening (41, 141, 241, 441) whose edge defines the seat, is eccentric relative to the axis of the neck of the container.
  13. A unit according to one of claims 1 to 8, characterized in that the seat is constituted by a component comprising a relief (246) describing an open line, the valve (251) forming part of a component made of a flexible material which forms at least in part the outer surface of the dispensing head (203) and cooperates with the edge of the said relief (246).
  14. A unit according to claim 2 taken on its own or in conjunction with one of claims 3 to 13, characterized in that the valve device is constituted by a system including two concentric skirts (69, 45) being coaxial with the neck (21) of the container (2), each skirt being provided with an opening (70, 46), the said openings (70, 46) being disposed in such a way that they can be caused to coincide by the rotation of one skirt relative to the other.
  15. A unit according to claim 2 taken on its own or in conjunction with one of claims 3 to 13, characterized in that the valve device is a system with a valve plug (665) whose axis is perpendicular to the longitudinal axis X-X of the unit.
  16. A unit according to claim 3 taken on its own or in conjunction with one of claims 3 to 13, characterized in that the valve device is a needle valve system wherein a first element comprising a female part (146) and a second element comprising a male part (165) of complementary dimensions are displaceable in relative translation so as to arrange in the open position a duct between the two above mentioned components, at least one of the two components being frustoconical.
EP91400917A 1990-04-13 1991-04-04 Assembly for dispensing at least one liquid product or cream Expired - Lifetime EP0452196B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9004829A FR2660877B1 (en) 1990-04-13 1990-04-13 DISPENSING ASSEMBLY OF AT LEAST ONE LIQUID OR CREAM PRODUCT.
FR9004829 1990-04-13

Publications (2)

Publication Number Publication Date
EP0452196A1 EP0452196A1 (en) 1991-10-16
EP0452196B1 true EP0452196B1 (en) 1994-07-27

Family

ID=9395785

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91400917A Expired - Lifetime EP0452196B1 (en) 1990-04-13 1991-04-04 Assembly for dispensing at least one liquid product or cream

Country Status (7)

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US (2) US5161718A (en)
EP (1) EP0452196B1 (en)
JP (2) JP3297923B2 (en)
CA (1) CA2040082C (en)
DE (1) DE69103067T2 (en)
ES (1) ES2057801T3 (en)
FR (1) FR2660877B1 (en)

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Also Published As

Publication number Publication date
JP3395078B2 (en) 2003-04-07
EP0452196A1 (en) 1991-10-16
FR2660877B1 (en) 1992-07-31
FR2660877A1 (en) 1991-10-18
JPH05138086A (en) 1993-06-01
DE69103067T2 (en) 1995-03-30
CA2040082A1 (en) 1991-10-14
JP3297923B2 (en) 2002-07-02
US5161718A (en) 1992-11-10
JP2001058664A (en) 2001-03-06
CA2040082C (en) 1999-12-21
ES2057801T3 (en) 1994-10-16
DE69103067D1 (en) 1994-09-01
US5325999A (en) 1994-07-05

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