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
  • B65D83/00—Containers or packages with special means for dispensing contents
  • B65D83/0005—Containers or packages provided with a piston or with a movable bottom or partition having approximately the same section as the container
  • B65D83/0033—Containers or packages provided with a piston or with a movable bottom or partition having approximately the same section as the container the piston being a follower-piston and the dispensing means comprising a hand-operated pressure-device at the opposite part of the container
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
  • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
  • B05B11/0005—Components or details
  • B05B11/0008—Sealing or attachment arrangements between sprayer and container
  • B05B11/0013—Attachment arrangements comprising means cooperating with the inner surface of the container
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
  • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
  • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
  • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
  • B05B11/1028—Pumps having a pumping chamber with a deformable wall
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
  • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
  • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
  • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
  • B05B11/1042—Components or details
  • B05B11/1043—Sealing or attachment arrangements between pump and container
  • B05B11/1046—Sealing or attachment arrangements between pump and container the pump chamber being arranged substantially coaxially to the neck of the container
  • B05B11/1047—Sealing or attachment arrangements between pump and container the pump chamber being arranged substantially coaxially to the neck of the container the pump being preassembled as an independent unit before being mounted on the container
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
  • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
  • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
  • B05B11/02—Membranes or pistons acting on the contents inside the container, e.g. follower pistons
  • B05B11/028—Pistons separating the content remaining in the container from the atmospheric air to compensate underpressure inside the container
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
  • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
  • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
  • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
  • B05B11/1042—Components or details
  • B05B11/1064—Pump inlet and outlet valve elements integrally formed of a deformable material

Definitions

• the present invention relates to a fluid dispenser comprising a reservoir and a dispensing head through which the fluid product of the reservoir is dispensed.
• the reservoir comprises an opening and the dispensing head comprises a fixing ring that engages in the opening.
• the ring and the opening form sealed final mounting means which fix, in final mounting position, the dispensing head stably and tightly in the opening of the tank.
• Such fluid dispensers are frequently used in the fields of cosmetics, perfumery or pharmacy.
• reservoirs whose opening is particularly large, which may have a diameter greater than 3 or 4 cm.
• the reservoir may for example be in the form of a cylindrical cup inside which is slidably mounted a follower piston which is intended to move in the bucket as fluid is extracted from the reservoir.
• the opening of the reservoir then extends in the extension of the bucket and has the same diameter as the reservoir.
• a distribution head of large diameter, but of reduced height is frequently used. This means that the dispensing head penetrates only weakly inside the opening of the tank.
• a known type of dispensing head has a substantially flat bottom face, against which the follower piston comes into contact when the reservoir is empty.
• such a dispenser comprises a reservoir whose opening is large and a dispensing head which penetrates weakly inside the tank.
• the dispensing head When mounting such a dispenser, it first begins by filling the tank with fluid. Then, the dispensing head is deposited in the opening of the tank without performing the final assembly. There is still no seal between the dispensing head and the reservoir. An optional next step, but more and more common, is to subject the dispenser to a vacuum to evacuate the air in the tank. The final final step is to permanently mount and seal the dispensing head on the tank.
• the distributors are routed through different stations by means of a conveying path. More specifically, the tank is deposited on the conveying path which allows to convey it from one station to another where different stages of assembly are performed.
• the dispensing head is simply deposited in the tank opening after the filling step, it sometimes happens that the dispensing head falls from the reservoir when it is routed to the next vacuum conditioning stage. or final assembly.
• the drop of the dispensing head can be caused by the sudden start of the conveying path which takes the reservoir filled with fluid product.
• the dispensing head falls all the more easily as it penetrates very weakly inside the tank, and the tank opening is important. It only takes one dispensing head that falls from its tank to block the entire assembly line.
• An object of the present invention is to prevent the drop of the dispensing head while retaining the possibility of subjecting the dispenser to vacuum packaging.
• the present invention is particularly applicable to the field of cosmetics with the aforementioned type of dispenser, but it can also be applied to other areas with different types of reservoir and dispensing head.
• the present invention proposes that the ring and the opening furthermore form temporary pre-assembly means making it possible, in the premounted provisional position, to fix the dispensing head provisionally and non-tightly in the opening of the reservoir.
• the mounting means are latching means.
• the pre-assembly means may also be latching means.
• the dispensing head is secured to the tank in premounted provisional position, which avoids any risk of loss or of falling of the dispensing head.
• the provisional pre-assembly is not waterproof, it is possible to subject the dispenser, and more particularly the contents of the reservoir, to a vacuum to evacuate the air contained therein.
• the dispensing head is mounted permanently and sealed on the tank.
• the dispensing head is first preassembled in a non-sealed manner on the reservoir, then in a second step, the head is permanently snapped tightly on the reservoir. Between the two snaps, the dispensing head is integral with the reservoir, but it is still possible to perform vacuum packaging.
• the mounting means comprise a first detent groove formed at the opening and a first detent rib formed by the fixing ring, the first rib being engaged snapped into the first groove. in final assembly position.
• the pre-assembly means comprise a second detent groove formed at the opening and the first detent rib formed by the fixing ring, the first rib being in engagement snapped into the second groove in the premounted position.
• the opening defines an upper annular edge, the second groove being located closer to the annular edge than the first groove.
• the ring forms a second rib which snaps tightly into the second groove in the final mounting position.
• the dispensing head is doubly snapped into the opening of the tank, thus increasing the stability of the head on the tank, but also the seal between the ring and the opening.
• the opening defines an upper annular edge, the fixing ring forming a peripheral flange which bears on the edge of the opening in the final mounting position.
• the reservoir comprises a follower piston which slides in a sealed manner inside a barrel closed by the reservoir, this follower piston moving between the pre-assembled position and the final mounting position to avoid any rise in pressure in the tank.
• the dispensing head has a lower face oriented towards the reservoir, this lower face forming a closing roof for the reservoir, this lower face being substantially flat and projecting very little into the reservoir below the reservoir. fixing ring.
• the present invention finds a particular advantage when the dispensing head has a flat bottom face which penetrates only slightly inside the tank. As mentioned above, this is the case of cosmetic pumps which are mounted on tanks having a large section opening.
• the reservoir comprises a sliding shaft and a follower piston which slides in the barrel, the opening extending in the extension of the barrel. This means that the opening of the reservoir has a diameter substantially equal to that of the reservoir where the follower piston slides.
• FIG. 1 is a vertical cross-sectional view through a fluid dispenser of the invention in provisional premounted position
• FIG. 2 is a greatly enlarged view of a detail of FIG. 1 showing the engagement of the head in the tank in the provisional pre-assembled position
• FIG. 3 is a view similar to that of FIG. 1 in final mounting position
• Figure 4 is a view similar to that of Figure 2 in the final mounting position.
• the fluid dispenser shown in FIGS. 1 to 4 is a cosmetic product dispenser of pasty or creamy consistency. This dispenser can nevertheless be used to dispense pharmaceutical products, such as ointments.
• the dispenser comprises two main subsets, namely, a fluid reservoir 1 and a dispensing head 2.
• the fluid reservoir 1 comprises a substantially cylindrical bucket comprising a cylindrical sliding shaft 15 closed at its lower end by a bottom 16.
• the opposite end of the barrel 15 defines an opening January 1 whose section is substantially or perfectly identical to that 15.
• the tank 1 defines an opening 1 1 of large section, since it extends exactly in the extension of the barrel 15.
• the tank 1 also comprises a follower piston 17 which is slidably mounted in a sealed manner. the inside of the barrel 15.
• the follower piston 17 is initially arranged near the bottom 16, but it can be seen in FIG. 1 that the follower piston 17 is not in contact with the bottom 16, but on the contrary is separated from this background by a short distance.
• the bucket and the follower piston can be made by injection molding material plastic. One can also consider making the bucket glass or metal.
• the opening 11 comprises an outer wall and an inner wall connected at the upper end of the tank 1 by an annular edge.
• the opening 1 1 defines from bottom to top a first ratching groove 12, a second ratching groove 13 and a frustoconical entry chamfer 141 which joins the upper edge 14.
• the two ratchet grooves 12 and 13 are separated by a first bead 123.
• the second ratchet groove 13 is separated from the frustoconical bevel 141 by a second bead 134. It can be seen from the figures that the internal diameter of the first ratchet groove 12 is smaller than the diameter. internal of the second latching groove 13.
• the dispensing head 2 comprises a pump 3 defining an inlet 31 communicating with the reservoir 1.
• the pump 3 defines a pump chamber 32 of variable volume for putting the fluid under pressure.
• the pump also comprises a fixing ring 33 which engages the opening 1 1 of the reservoir.
• the dispensing head also comprises a pusher 4 associated with the pump 3 for actuating it.
• the dispensing head comprises a protective cover 5 removably mounted on the fixing ring 33 and masking the pusher 4. This is a quite conventional design for a dispensing head in the field of cosmetics, pharmacy or perfumery.
• the fixing ring 33 comprises a first detent rib 34 and a second detent rib 35 separated by a groove 345.
• the maximum outer diameter of the first rib detent 34 is smaller than the maximum outside diameter of the second detent rib 35.
• the fastening ring 33 also forms a peripheral flange 36 which projects radially outwards and is intended to bear on the annular edge 14 of the opening 1 1. Referring to Figure 2, we see the fixing ring 33 in provisional pre-assembly position in the opening 1 1 of the tank 1. In this position, the peripheral flange 36 is not resting on the annular edge 14.
• the second detent rib 35 is in contact with the input chamfer 141, while the first detent rib 34 is housed in the second snap groove 13.
• the first snap groove 12 is empty.
• the dispenser in this pre-assembled temporary position to a vacuum in order to evacuate the air present inside the tank. It is not necessary that the dispensing head is perfectly stable on the tank 1 in the pre-assembled provisional position. It is sufficient that the head is integral with the tank, even if it still has a certain degree of freedom.
• the first sealing rib 34 is loosely received inside the second latching groove 13, and the bearing of the second detent rib 35 on the entry chamfer 141 is not squeezing.
• the first ratchet rib 34 is trapped in the second ratchet groove 13.
• the maximum external diameter of the first ratchet rib 34 it is possible for the maximum external diameter of the first ratchet rib 34 to be smaller than the maximum internal diameter of the second ridge. snap 13.
• the dispenser in this premounted provisional position can thus be conveyed on the conveyor path to the sealed final assembly station, and optionally to a vacuum evacuation station.
• two seals are made respectively at the two ribs 34 and 35 in contact with the two grooves 12 and 13.
• two separate snaps on the height of the opening January 1 ensure perfect stability, and advantageously indémontact distributor.
• the dispensing head has a lower face 3i which is substantially flat and which penetrates very weakly inside the tank.
• this is a particular configuration of dispensing head which is often used in the field of cosmetics. With this type of configuration, the head penetrates very little inside the tank and would normally tend to fall from the tank on the assembly line between the moment when the head is simply deposited on the tank and the moment when the head is mounted permanently on the tank. With the present invention, it eliminates any risk of falling from the dispensing head premounted temporary position, while maintaining the possibility of vacuum packaging.

Landscapes

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

Applications Claiming Priority (2)

Publications (2)

Family

ID=42711903

Family Applications (1)

Country Status (7)

Families Citing this family (14)

Family Cites Families (12)

• 2010
  • 2010-02-11 FR FR1050960A patent/FR2956098B1/fr not_active Expired - Fee Related
• 2011
  • 2011-02-08 ES ES11708536.5T patent/ES2673698T3/es active Active
  • 2011-02-08 BR BR112012020247A patent/BR112012020247A2/pt not_active IP Right Cessation
  • 2011-02-08 EP EP11708536.5A patent/EP2534068B1/de active Active
  • 2011-02-08 WO PCT/FR2011/050254 patent/WO2011098714A1/fr active Application Filing
  • 2011-02-08 US US13/578,155 patent/US20130008924A1/en not_active Abandoned
  • 2011-02-08 CN CN201180008940XA patent/CN102791592A/zh active Pending

Non-Patent Citations (1)

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