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
  • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
  • B65D83/38—Details of the container body
• • 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
  • B05B11/1049—Attachment arrangements comprising a deformable or resilient ferrule clamped or locked onto the neck of the container by displacing, e.g. sliding, a sleeve surrounding the ferrule

Definitions

• Fluid product dispenser with snap-on fixing ring
• the present invention relates to a fluid dispenser comprising a neck reservoir and a dispensing member, such as a pump or a valve, mounted on the neck to extract fluid from the reservoir.
• a dispensing member such as a pump or a valve
• the invention relates more particularly to a fixing ring of said dispensing member intended to fix the latter on a neck having an external peripheral thickening which defines with the rest of the neck a lower shoulder.
• This type of tank with such a neck is widely used for pumps or valves which are snapped onto the neck using the lower shoulder as a retaining or abutment surface.
• Document FR-0 704 251 discloses a fixing ring comprising latching tabs at the ends of which latching lugs are formed intended to be housed below the shoulder of the neck. Subsequently, a hoop covers the ring to prevent the pins from disengaging from below the shoulder :. Indeed, it is possible with this kind of fixing device to remove the ring from the neck as long as the hoop is not mounted.
• the snap tabs are flexible which allows the pins to pass over the thickening to reach the position of encasing under the shoulder. Therefore, when mounting the ring on such a neck, the tabs must bend outward, which increases the useful diameter of the ring when passing over one thickening of the neck.
• the final fixation is achieved only when the hoop is mounted: the fixation therefore requires two parts.
• Document US-4,773,553 discloses another fixing device in which the fixing ring is made in a flowable material and has tabs provided with heads which initially project outwards. It is thus possible to mount the ring on a collar without deforming the tabs outwards. The final fixation is carried out by forcibly engaging a hoop on the ring so that the heads projecting outward are brought inwardly below the shoulder of the neck by flow of material. In this case, two pieces are also needed to make the attachment and moreover, a certain force must be exerted on the hoop to cause the heads to flow inwards.
• document US Pat. No. 5,299,703 describes a pump fixing system in which a ring has tabs terminated by a head formed by inward hemming. Before assembly, the hemmed heads are folded outwards to allow the neck to pass through. Once in position on the container neck, the heads are deformed inwardly using a hoop.
• This system is analogous to that of document US Pat. No. 4,773,553, except that the ring is made of metal and that the heads are folded inwards and not swollen. Since it is metal, this system can be look like a crimp since metal is deformed so as to achieve a narrowing. Again, it is necessary to use a tool to fix the ring on the neck of the tank.
• the object of the present invention is to remedy the drawbacks of the aforementioned prior art by defining a fixing device, the fixing ring of which makes the final fixing without the aid of an attached hoop and the mounting of the ring of which does not generate deformation of the ring outside its normal rest dimensions.
• the present invention provides a fixing device for a product dispenser.
• said fixing device comprising a fixing ring for fixing the dispensing member on the neck, the fixing ring comprising a peripheral upe which extends to below said shoulder, said upe is provided with flaps whose free ends point inwards and upwards and come in abutment contact against the shoulder so as to snap the fixing ring onto the neck of the tank.
• the flaps are located in the upe without protruding beyond towards the outside and can then be folded or take their snap orientation under the shoulder.
• the flaps are preloaded inwardly during the manufacture of the fixing ring. In this case, the flaps automatically resume their original orientation, pre-stressed inwards as soon as the thickening passes.
• the flaps can be forced inward once the ring in position on the neck. In this case, a subsequent operation will be necessary to fold the flaps below the shoulder.
• the fixing is ensured by the ring alone, without requiring the addition of an additional hoop. The ends of the flaps in abutment against the shoulder alone guarantee final fixing.
• the flaps have a wall thickness equal to or less than that of the skirt so as not to protrude outside the skirt when the flaps pass over the peripheral thickening of the neck. It is thus possible to pre-mount the fixing ring in a hoop of decorative trim and then mount this set on a tank neck. Indeed, while in the prior art, the latching tabs must deform outward to pass the thickening, in the present invention, the flaps are never deformed outward, which allows pre-assembly a fret, purely decorative, since it is not necessary for fixing the ring on the neck.
• the present invention also defines a dispenser comprising such a fixing device for fixing the dispensing member to the neck of the reservoir.
• the dispenser which as a whole comprises a reservoir 1, a fixing device 20 and a dispensing member 2.
• the upper part of the neck defines an annular surface 15 which can advantageously be provided with an annular sealing bead 16 serving to improve the seal with a neck seal 24 making the seal between the neck 10 and the dispensing member 2.
• the dispensing member 2 is a pump, but a valve is just as possible.
• the internal structure of the pump will not be described, since it is not critical for the invention.
• the pump comprises a pump body 25 and an actuating rod 26 on which is mounted an actuating head 27 equipped with a nozzle 28.
• a fixing ring 20 comprising a receiving housing in which the pump body 25 is force-fitted and a peripheral skirt 21 which extends downwards.
• the internal diameter of the skirt 21 is equal to or slightly greater than the external diameter of the thickening 11 of the neck so that the skirt 21 can engage on the neck with minimum clearance in order to guarantee the stability of the pump.
• the skirt 21 is provided with flaps 22 released in the skirt, the free ends of which point in the snap-in position upwards and inwards, so as to abut against the shoulder 12 of the neck.
• the flaps 22 are connected to the upe by their lower ends and are bent inwardly to extend until contact with the shoulder 12.
• the skirt defines a window in which the flap respective can be housed when it is deformed outwards.
• the thickness of the flaps is advantageously equal to or less than the wall thickness of the skirt 21, so that the flaps can be accommodated in the windows without projecting either inwards or outwards. The flaps can therefore be entirely included in their respective windows.
• the flaps can be prestressed with this orientation inwards or be initially housed in the respective windows of the skirt and only then folded in their final click position.
• the flaps are originally formed with their orientation inwards, since this makes it possible to avoid a subsequent operation of folding the flaps inwards below the shoulder 12 of the neck.
• the flaps, and therefore the ring itself will preferably be molded from plastic in the state shown in the single figure.
• the ring 20 has windows 201 formed vertically from each flap 22. These windows have made it possible during the molding of the ring to pass mold pins adapted to define the free ends of the flaps as well as the wall sectors internal skirt located above the flaps.
• the final fixing is carried out by the ring only.
• a decorative band 23 can come over the ring 20, but it does not contribute to the fixing; it only fulfills an aesthetic purpose. Also, since the flaps do not protrude toward the outside during their passage on 1 thickening, it is possible to mount the hoop on the ring before it snaps on the neck. We can thus pre-mount the hoop on the ring and mount everything on the neck, which simplifies the mounting of the distributor.

Landscapes

• Chemical & Material Sciences (AREA)
• Dispersion Chemistry (AREA)
• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Closures For Containers (AREA)
• Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
• Filling Or Discharging Of Gas Storage Vessels (AREA)

Applications Claiming Priority (3)

Publications (3)

Family

ID=9507914

Family Applications (1)

Country Status (6)

Families Citing this family (24)

Family Cites Families (9)

• 1997
  • 1997-06-13 FR FR9707317A patent/FR2764584B1/fr not_active Expired - Fee Related
• 1998
  • 1998-06-10 DE DE69802681T patent/DE69802681T3/de not_active Expired - Lifetime
  • 1998-06-10 ES ES98929544T patent/ES2168767T5/es not_active Expired - Lifetime
  • 1998-06-10 WO PCT/FR1998/001195 patent/WO1998056688A1/fr active IP Right Grant
  • 1998-06-10 EP EP98929544A patent/EP0986505B2/de not_active Expired - Lifetime
  • 1998-06-10 US US09/445,666 patent/US6315169B1/en not_active Expired - Lifetime
• 2001
  • 2001-09-06 US US09/948,145 patent/US6527148B2/en not_active Expired - Lifetime

Non-Patent Citations (1)

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