Classifications

• • 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

Definitions

• the invention relates to a fluid dispenser pump and a fluid dispenser comprising such a pump.
• Fluid dispensers comprising a bottle intended to contain the product and having an upper opening delimited by a neck in which a pump is introduced.
• the pump comprises a generally cylindrical pump body defining a compression chamber and enclosing a piston and valve mechanism.
• a radial seal is achieved by a reported seal disposed on a transverse edge of the neck.
• the invention aims to remedy these problems by proposing a pump whose body comprises a collar which combines the achievements of the assembly of the pump on the neck of a bottle and the sealing of the bottle.
• the invention proposes a fluid dispenser pump comprising a bottle intended to contain said product, said bottle having an upper opening delimited by a neck into which the pump is introduced, said pump comprising a generally cylindrical pump body delimiting a compression chamber, the pump body extending radially through an annular assembly collar made in one piece with the upper part of said body, said collar having a lower face intended to come into contact deforming waterproof on a support zone formed on the upper part of the neck.
• the assembly of the pump to a distributor and the sealing achieved by means of a radial collar eliminates the use of a reported seal and constraints on the dimensions of the pump body, which simplifies the manufacturing process of the pump and improves its ability to adapt to different types of bottles.
• the bearing zone may include a transverse support surface formed on an upper edge of the neck.
• the assembly flange has a deformable portion of reduced thickness.
• the deformable portion of reduced thickness may comprise a groove formed on the underside of the assembly flange.
• the groove can be flared to ensure, by cooperation with a protruding rod carried by the bearing zone formed on the neck, a positioning and a setting of the pump body.
• the deformable portion of reduced thickness comprises a cavity formed on the upper face of the assembly flange.
• the deformable portion of reduced thickness is a medial portion of the hinge assembly flange so that an outer portion of said flange between the deformable portion of reduced thickness and the free end forms a flexible wing.
• the bearing zone may also comprise a lateral wedging surface formed on an outer lateral edge of the neck and an angular hooking surface formed on an angular edge of the neck which connects the upper edge and the lateral edge, the flexible wing presenting a flange which extends axially downwards, said flange being intended to come into tight contact with the lateral wedging surface by capping the angular attachment surface.
• the invention relates to a fluid dispenser comprising a pump according to the first aspect, the dispenser comprising a bottle intended to contain said product, said bottle having an upper opening delimited by a neck in which the pump is introduced, the dispenser further comprising an assembly socket crimped onto the neck and the upper face of the assembly flange so that the underside of the assembly flange comes into deforming tight contact on a bearing area provided on the upper part of the collar.
• the assembly flange extends radially inwards so as to project on the opening of the neck.
• the outer diameter of the pump body may be smaller than the inside diameter of the neck of the vial.
• the pump can thus be adapted to bottles of different sizes and shapes without risk of deterioration.
• FIG. 1 is a representation in partial longitudinal section of a dispenser comprising a pump according to a first embodiment introduced into the opening of a neck of a bottle, the pump comprising a radial collar whose lower surface is in leaktight contact. deforming with the neck, the collar comprising a middle wedging groove and a flexible outer flange;
• FIG. 2 is a representation in partial longitudinal section of the pump according to a variant of the embodiment of FIG. 1 being mounted on the neck, the collar having a cavity formed on the upper face, the flexible wing presenting a lapel and being shaped to allow the wedging and hooking of the collar on the neck;
• - Figure 3 is a representation similar to that of Figure 1 of a dispenser comprising the pump of Figure 2 fixed on the neck of the bottle after assembly of a sleeve.
• liquid product dispenser In particular examples, the liquid product is a cosmetic, pharmaceutical or a perfume product.
• the dispenser comprises a bottle 1 having a bottom wall and a cylindrical wall of axis D which extends perpendicularly from the edge of the bottom wall so as to define a housing for containing the product.
• the bottle 1 may further comprise a cover wall extending perpendicularly to the cylindrical wall from the edge opposite the bottom wall.
• the cover wall has an opening 2 through which the product can be introduced into the vial 1 or be delivered.
• the terms “axial”, “longitudinal” or “lateral” and “radial” or “transverse” refer to planes respectively parallel and perpendicular to the axis D.
• the terms “lower” And “superior” are understood with respect to the orientation of the bottle 1 resting on its bottom wall.
• the terms “lower” and “upper” refer to transverse planes located respectively close to and away from the bottom wall.
• the terms “inside” and “outside” refer to longitudinal planes situated respectively close to and away from the dwelling.
• the upper opening 2 may be delimited by a neck 3.
• This neck 3 comprises an axial cylindrical portion 4 which extends from the cover wall and a peripheral radial edge projecting from the free end of the axial portion 4.
• radial border 5 has an upper transverse edge 18, an outer lateral edge 23, an angular edge 19 which connects the upper edge 18 and the lateral edge 23 and a lower transverse shoulder 24.
• the dispenser comprises a spraying device.
• the device comprises a manual actuating head 6 secured, for example by snapping, to a pump introduced into the neck 3.
• the pump comprises a generally cylindrical pump body 7 having two open ends.
• the pump body 7 delimits a compression chamber in its lower part. Furthermore, the pump body 7 encloses a mechanism in which a piston element 8 which can slide in sealed manner in the pump body 7 cooperates with an inlet valve to fill the compression chamber with the product or to empty it.
• the piston element 8 comprises an axial channel 13 through which fluidic communication is established between the compression chamber and a spray orifice 14 provided on a nozzle 15 mounted on the actuating head 6.
• a tube has an upper end opening into the compression chamber and a lower end located near the bottom wall of the bottle 1.
• the upper end of the pump body 7 is closed by a stent 9 integral with the body 7 and having an axial bore 10 for guiding the piston member 8 during its sliding.
• lugs 11 are formed on the outer face of the expander 9 and are inserted in notches 12 formed on the inner face of the pump body 7 to allow the latching of the expander 9 in the pump body. 7.
• the pump body 7 is extended radially by an annular assembly flange 16 made on the upper part of the body 7.
• the assembly flange 16 is made in one piece with the free end upper body 7.
• the annular assembly flange 16 may be axially offset relative to the upper free end or may be constituted by an annular insert attached rigidly to the pump body 7. In the latter case, one can choose for the collating flange 16 a different material from that of the pump body 7 and adapted to the functions described below of the collar 16.
• the pump is introduced into the neck 3 until the lower face of the flange 16 comes into deforming tight contact on a bearing zone formed on the upper part of the neck 3.
• the bearing zone may comprise a transverse support surface formed on the upper edge 18.
• the transverse support surface may constitute all or part of the upper transverse edge 18.
• the radial dimension of the assembly collar 16 is provided so that its free end is close to the angular edge 29.
• the distributor further comprises an assembly sleeve 19 set on the neck 3 and on the upper face of the assembly flange 16.
• the expander 9 also comprises a radial projection 20 whose lower face rests on the upper face of an inner portion of the assembly flange 16.
• the sleeve 19 is then deformed so as to make a bearing on the face upper radial projection 20 and a bearing on the upper face of the middle and outer portions of the assembly flange 16.
• the sleeve 19 is then folded along the outer side edge 23 of the radial edge 5 and then shaped to perform a snap on the shoulder 24.
• the assembly flange 16 extends radially inwards so as to project on the opening 2 of the neck 3.
• the outside diameter of the pump body 7 may be smaller than the inside diameter of the neck 3 so that the outer lateral face of the pump body 7 is arranged at a distance from the inside face of the neck 3.
• a pump is thus produced said "standard” which can be adapted in a sealed manner to necks of different dimensions and shape without imposing stress on the pump body 7 itself.
• the dimensions of the pump body 7 are adjusted to those of the neck 3.
• the assembly flange 16 has a deformable portion of reduced thickness 21.
• the deformable portion of reduced thickness 21 is median.
• the portion of reduced thickness 21 can thus form hinge so that the outer portion of the flange between the deformable portion of reduced thickness 21 and the free end forms a flexible flange 22.
• the thickness of the flexible wing 22 may decrease near the free end to give a generally rounded shape to the upper face of the flexible wing 22.
• This embodiment simplifies the deformation of the sleeve 19 forming a transition curvature between the middle and outer portions of the flange 16 on the one hand and the outer lateral edge 23 of the radial edge 5 on the other hand.
• the contact of the assembly flange 16 on the transverse support surface of the neck 3 is then distributed over a larger surface and in a uniform manner, which improves the assembly and the sealing of the bottle 1.
• the deformable portion of reduced thickness 21 comprises a groove 25 formed on the lower face of the assembly flange 16.
• the groove 25 is flared to have two inclined walls diverging towards the lower transverse face and ensure, by cooperation with a rod 26 projecting carried by the bearing zone formed on the neck 3, a positioning and a 7.
• the ring 26 may be carried by the transverse support surface.
• the groove 25 placed on the rod 26 by tightening by means of the sleeve 19 also ensures a complementary seal.
• the inclined walls allow the sliding of the outer face of the rod, of frustoconical shape, for example, to facilitate positioning and wedging.
• the ability of the flexible wing 22 to deform allows to overcome the precise relative positioning of the groove 25 relative to the rod 26 and achieve improved positioning and timing while creating a complementary seal. This flexibility also offers better adaptability of the pump to different necks or with dimensional variations.
• the flange 16 thus produced makes it possible to dissociate at least partially the functions of sealing, wedging and positioning of the flange.
• the seal is mainly achieved by the inner and outer portions due to the support of the projection 20 of the expander 9 and the assembly sleeve 19.
• the setting and positioning they are mainly made by the median portion of reduced thickness 21.
• the deformable portion of reduced thickness 21 also comprises a cavity 27 formed on the upper face of the assembly collar 16.
• the bearing zone also comprises a lateral wedging surface provided on all or part of the outer lateral edge 23 and an angular hooking surface formed on all or part of the angular edge 29.
• the flexible wing then has a flange 28 which extends axially downwards. The cuff 28 comes into tight contact with the lateral wedging surface by capping the angular hooking surface.
• the wedging can be achieved by the median portion of the flange 16 with the cooperation of a ring 26 and the groove 25 and / or by the outer portion of the flange 16 with the lapel 28.
• the positioning of the body the flexibility of the flange 22. This flexibility also promotes the attachment of the pump body 7 on collars with dimensional variations.
• the seal it is made radially mainly by the inner and outer portions of the flange 16 and axially by the flange 28.
• the flexible wing 22 is inclined downwardly relative to the inner portion of the collar 16.
• This embodiment shown in Figure 2 allows the flange 16 to better marry the support zone of the upper part of the neck 3 and thus improve the setting and attachment of the pump body 7.

Landscapes

• Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
• Closures For Containers (AREA)
• Details Of Reciprocating Pumps (AREA)

Applications Claiming Priority (2)

Publications (2)

Family

ID=35395749

Family Applications (1)

Country Status (7)

Families Citing this family (3)

Family Cites Families (11)

• 2005
  • 2005-04-21 FR FR0504010A patent/FR2884877B1/fr not_active Expired - Fee Related
• 2006
  • 2006-03-14 RU RU2007138902/12A patent/RU2007138902A/ru unknown
  • 2006-03-14 EP EP06726249A patent/EP1871687B1/de active Active
  • 2006-03-14 WO PCT/FR2006/050227 patent/WO2006111669A1/fr active Application Filing
  • 2006-03-14 BR BRPI0612177-2A patent/BRPI0612177B1/pt active IP Right Grant
  • 2006-03-14 CN CN200680013458A patent/CN100581938C/zh active Active
• 2007
  • 2007-10-19 US US11/875,540 patent/US20080067196A1/en not_active Abandoned

Non-Patent Citations (1)

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