CN1921952B - Fluid dispenser member - Google Patents

Fluid dispenser member Download PDF

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Publication number
CN1921952B
CN1921952B CN2005800057117A CN200580005711A CN1921952B CN 1921952 B CN1921952 B CN 1921952B CN 2005800057117 A CN2005800057117 A CN 2005800057117A CN 200580005711 A CN200580005711 A CN 200580005711A CN 1921952 B CN1921952 B CN 1921952B
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CN
China
Prior art keywords
piston
wall
fluid dispenser
dispenser member
curtate
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Active
Application number
CN2005800057117A
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Chinese (zh)
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CN1921952A (en
Inventor
F·加西亚
H·佩纳内
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Aptar France SAS
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Valois SAS
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Publication of CN1921952A publication Critical patent/CN1921952A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
    • B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
    • B05B1/341—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
    • B05B1/3421—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber
    • B05B1/3431—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves
    • 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
    • B05B11/1038—Pressure accumulation pumps, i.e. pumps comprising a pressure accumulation chamber
    • B05B11/104—Pressure accumulation pumps, i.e. pumps comprising a pressure accumulation chamber the outlet valve being opened by pressure after a defined accumulation stroke
    • 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
    • B05B11/1073—Springs
    • B05B11/1074—Springs located outside pump chambers
    • 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
    • B05B11/1094—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 having inlet or outlet valves not being actuated by pressure or having no inlet or outlet valve
    • 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
    • B05B11/1001—Piston pumps
    • B05B11/1021—Piston pumps having an outlet valve which is a gate valve
    • B05B11/1022—Piston pumps having an outlet valve which is a gate valve actuated by pressure
    • 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
    • B05B11/1066—Pump inlet valves
    • B05B11/107—Gate valves; Sliding valves

Abstract

The inventive liquid product dispensing device comprises a dispensing wall (623) which defines an external and an internal surface and is provided with a through dispensing orifice (625) connecting said external and internal surfaces. The internal surface forms a sliding sealed cylinder for a piston (632, 633) which is sealingly displaceable in said cylinder for selectively unlocking the dispensing orifice and forms a wall element of a liquid product chamber in which said liquid product is selectively pressurised. The invention is characterised in that the internal surface extends on two surface sections i.e. a top section (6232) and a lower section (6242), the internal diameter of the top section is smaller than that of the lower section and the piston comprises a sealing lip (633) sealingly slidingly in contact with the lower section.

Description

Fluid dispenser member
Technical field
The present invention relates to fluid dispenser member, said fluid dispenser member is usually designed to the fluid product holder and links, therewith to constitute distributor of fluid product.It is a distributor gear that the finger that usually relies on the user manually boots.Fluid product distributes with injection stream, the drip, or the form of fluid mass continuously of droplet, especially for the thickness product, and the face cream of for example making up.Such fluid dispenser member especially can be used for perfume, cosmetics or even medicine field, be used to distribute the product of various thickness.
More specifically, the present invention relates to but be not limited only to the distributor gear type of a kind of being referred to as " pump formula pusher (pompe-poussoir) ".This title can explain that promptly, said distributor gear comprises a pusher through such fact; Said pusher not only forms dispensing orifice; Also define the part of fluid product chamber, in said fluid product chamber, fluid is selectively placed under the pressure.When distributor gear was pump, said fluid product chamber was a pump chamber.The characteristics of such pump formula pusher are; The inner surface of said pusher is as the sealing sliding cylinder body of piston; Said piston moves in said cylinder body with the form of sealing contact, thereby optionally opens said dispensing orifice, and the inner surface general shape of said pusher is roughly cylindrical.Usually, said piston is the piston of differential type, it respond said indoor fluid pressure variation and move.Differential piston should be different from main piston, and said main piston mobile is that the action through said pusher produces.Therefore, such pump formula pusher comprises differential piston and main piston, and these pistons can seal the form of contact and in cylinder body separately, move.The Master cylinder body of main piston also can be formed by said pusher.
Background technology
This is particularly useful in the pump described in the patent documentation WO97/23304.Pusher has the wall of pushing, and exerts pressure to start pusher with finger said pushing on the wall.And pusher has the skirt section, said skirt section from the said wall of pushing to extending below.Said skirt section is formed for the first sealing sliding cylinder body and second Master cylinder body that is used for the main piston of said pump of differential piston.Said differential piston does not link with said main piston.Spring forces said differential piston to move apart the said wall of pushing.Said spring both also was used as pretensioned spring as return spring.The sliding cylinder body of said differential piston is provided with outlet, and said outlet guiding is contained in the nozzle in the recess, and said recess is formed in the said skirt section of said pusher.Said nozzle forms dispensing orifice, from said distributor gear, discharges fluid through said dispensing orifice.In addition, the said recess that is formed by said skirt section is provided with eddy-current system, and said eddy-current system cooperates with said nozzle, so that fluid had been in the eddy motion before discharging through dispensing orifice.Said eddy-current system is made up of one or more tangent line shape swirl channel usually, and said access portal gets into the minor air cell, and said minor air cell accurately places the center of said dispensing orifice.Said eddy-current system is in the recess in the netted recessed said skirt section.Then, recessed net links with the nozzle that separates, and the nozzle of said separation is isolated said swirl channel and said minor air cell.Therefore, the sliding cylinder body of differential piston is the shape of cylindrical surface, only interrupts at said exit passageway place.When pusher was extruded, main piston rose in the Master cylinder body of pusher, thereby caused differential piston to pass through in differential cylinder body, to move with the sealing means slip.This makes spring be compressed: differential piston then moves upward towards the wall of pushing of pusher.The movable sealing lip of the differential piston that directly contacts with fluid slides in the bottom that is positioned at the cylinder body under the said exit passageway.In case differential piston arrives said outlet, the fluid that is under the pressure discharges from the chamber, the said pipe and arrive nozzle of flowing through, and here, fluid forms eddy current and discharges through dispensing orifice.
Patent documentation WO97/23304 is made up of five basic composition elements, spheroid, differential piston and the nozzle of the main body that promptly is designed to link with fluid reservoir, pusher, formation import valve member.Said main body forms main piston.
Summary of the invention
An object of the present invention is to simplify the distributor gear of the type described in the above-mentioned prior art document, to reduce the quantity of member.A special purpose is to omit the nozzle of interlocking.Another purpose is to keep eddy-current system, the quality that said eddy-current system helps fluid product to be assigned with.Another object of the present invention is the cooperation that improves between differential piston and the pusher, especially seals sliding-contact and sets up the exit passageway of fluid product.
In order to realize some purposes in these purposes, the invention provides a kind of fluid dispenser member, said fluid dispenser member has the distribution wall that limits outer surface and inner surface; Said wall is provided with the dispensing orifice that is connected to said inner surface said outer surface, and said inner surface forms the sealing sliding cylinder body of piston, and said piston is suitable in said cylinder body, moving with the form of sealing contact; Optionally to open said dispensing orifice; Said piston forms the wall elements of fluid product chamber, and in said fluid product chamber, fluid optionally places under the pressure; Said fluid dispenser member is characterised in that; Said inner surface extends across two surface segment, i.e. upper curtate and lower curtate, and the internal diameter of said upper curtate is littler than the internal diameter of said lower curtate; Said dispensing orifice is formed on said upper curtate place, and said piston is provided with the sealed lip that seals sliding-contact with said lower curtate.
The distributor of the type can be the pump of pump formula pusher type, but it also can be any other distributor gear type, and pusher does not wherein link with distribution wall.Especially, it can allow distribution wall to fix with respect to said holder, perhaps is mounted to respect to said pusher motion.Advantageously, sliding cylinder body, dispensing orifice and eddy-current system and distribution wall are integrally formed.
Advantageously, at the upper curtate place, said inner surface forms the fluid vortex system that is located immediately at the said dispensing orifice upper reaches.Make said lip slip over respect to form therein the section of the section skew of dispensing orifice, this is particularly advantageous in molded distribution wall.Distribution wall is made up of the injection-molded plastic material that forms substantially.For this purpose, use a mould that constitutes by a plurality of elements.Especially, in the said element is formed for forming the core of the inner surface of distribution wall.In the present invention, said core must form eddy-current system.Owing to said eddy-current system extends through the part that in sliding cylinder body, forms hollow out, core just must form corresponding trace line (empreinte) to outer lug.Therefore, in knockout course, when core withdraws from, must make and firmly withdraw from protruding trace line.Thereby protruding trace line must come out from its established recessed portion, and must move along the axial length of sliding cylinder body.Under plastic material can the situation of creep, firmly make protruding trace line through only can on sliding cylinder body, staying vestige seldom.Therefore, through the guiding walls with inner surface is provided---the diameter of the inner surface of said guiding walls is greater than the internal diameter of sliding cylinder body, and the protruding trace line of core can withdraw from through it, and does not invade in the inner surface of guiding walls.So the protruding trace line of core is only stressed and withdraw from one section of sliding cylinder body little axial length: shifting out in the process of core, thereby the impaired risk of sliding cylinder body obtains restriction.
Yet the present invention is not limited to the situation that distribution wall forms eddy-current system.
In another embodiment, piston is provided with second lip that seals sliding-contact with upper curtate.
In a modification, piston does not contact with upper curtate.In this case, there is not upper lip.
The characteristic of implementing according to another characteristic that can be independent of the lip that relates to piston; Piston is provided with the sealing backstop rib that contacts with stop surface sealing backstop; In rest position; Piston flexibly is pressed against on the said sealing stop surface, and the backstop rib contacts said chamber from the dispensing orifice seal with sealing between the stop surface.
Advantageously, stop surface is a conical butt, and radially outward oppresses the backstop rib.Advantageously, distribution wall is formed by pusher, and said pusher comprises pushes wall, and the said wall of pushing extends through distribution wall at its peripheral place, and stop surface forms by pushing wall.
In yet another aspect, surface segment is cylindrical, and interconnects through a transition zone, and advantageously, said transition zone is a conical butt.
According to another characteristic that also can independently implement, distribution wall forms by being essentially columniform skirt section, and said skirt section also is provided with the guiding walls that limits inner surface, advantageously, said inner surface basically with the lower curtate extension that is in line.Guiding walls is provided with the interior hook device with outer holding device adjacency.
On the other hand, the sealed lip that contacts with lower curtate is flexibly pushed towards upper curtate on rest position.
Can implement the backstop rib, slide and need not to be mounted to the lower curtate bigger to lower lips with respect to diameter.
A favourable aspect of the present invention is that the wall that dispensing orifice passes through also forms the fluid vortex system in inside.
Description of drawings
Hereinafter will be described the present invention with reference to accompanying drawing more fully, and accompanying drawing has shown one embodiment of the present of invention with the mode of non-limiting example.
In the accompanying drawings:
Fig. 1 be in the state of ceasing assembling the skiagraph of distributor of embodiment of distributor gear of the present invention;
Fig. 2 is the exploded view of Fig. 1 of amplification; And
Fig. 3 is the detail drawing of larger sized distributor gear of the present invention.
The specific embodiment
Fig. 1 and 2 demonstrates distributor gear 600 and links with container 650, and said container comprises body 651, and said body defines fluid product holder 5 in inside.On its top, said body 651 is provided with the opening of neck 653 forms, and said neck is used for fixing distributor gear of the present invention.
Distributor gear 600 comprises three element, i.e. body 610, pusher 620 and piston 630.Said distributor gear also comprises spring assembly 640, and in this example, said spring assembly is helical spring (ressort à boudin).Body, pusher and piston mechanism are preferably processed by molded plastic material.Said distributor gear is designed with the pump of pump chamber 1.
Body 610 comprises retainer ring 611, and said retainer ring cooperates with said neck 653, to be fixed on distributor gear on the container 650.The outer side engagement of said ring 611 and said neck 653.Said body 611 also forms guiding and retaining ring body 614.The top of said guide ring body 614 is provided with outer shoulder 6141, and said outer shoulder is as outer holding device.Said body also forms Master cylinder body 617, and said Master cylinder body limits the sealing slidingsurface in inside, and its function provides hereinafter.Said body also forms extension 615, and said extension extends in said container 650.On its top, extension 615 extends through import sleeve 616, and said sleeve forms a type body or import valve seat.Intake channel 618 passes extension 615 and sleeve 616.Import sleeve 616 extends in Master cylinder body 617 with one heart, thereby between them, forms annular space.
Body 610 is symmetrical circularly around axis X, and said axis X is longitudinally extended at the axial line of intake channel 618.
This is a particular design of the particular allocation mechanism among the non-limiting embodiment of the present invention.Nature, body can have the characteristic beyond the above-mentioned characteristic, and do not exceed scope of the present invention.
Pusher 620 forms the dispensing head of distributor gear.Said pusher 620 comprises pushes wall 621 and peripheral skirt 622, said skirt section from the periphery of pushing wall to extending below.Therefore, pusher 620 is the general shape of inverted cup, and it is pushed wall and forms the bottom, and its skirt section forms cylindrical side wall.Yet the skirt section needn't be columniform shape.It can be Frusto-conical or rounded (arrondies) cross section.
Push wall 621 and have the outer surface 6211 of pushing, can use one or more fingers to press above that.In addition, push wall 621 and also have inner surface 6212, advantageously, said inner surface forms one or more stop surfaces 6213.
Skirt section 622 has last distribution wall 623 and following guiding walls 624.On its top, distribution wall 623 is connected to the neighboring of pushing wall 621.Distribution wall 623 has outer surface and inner surface.Inner surface is preferably cylindrical, and limits sliding cylinder body, and this will be described below.Inner surface limits two columniform inner surface sections 6232 and 6242, and these two sections interconnect through transition zone 6243, but said transition zone step or conical butt.Said two sections comprise upper curtate 6232 and lower curtate 6242.The internal diameter of said upper curtate is less than the internal diameter of said lower curtate.Said upper curtate is connected to the said wall of pushing, and especially also is connected to the inner surface 6212 of pushing wall.Upper curtate 6232 and inner surface 6212 junction parts form circumferential cannelure 6214, and said cannelure is provided with stop surface 6213, and advantageously, said stop surface is implemented as conical butt.
Upper curtate is provided with the dispensing orifice 625 of break-through, and said dispensing orifice extends to outer surface from inner surface.Said dispensing orifice 625 can lead in outer surface and distribute in the cup head.
According to favorable characteristics of the present invention, the upper curtate 6232 of distribution wall 623 is provided with eddy-current system 626, and said eddy-current system makes can be the form rotation of fluid product with eddy current, and the eddy current eyelet of said eddy current is centered on the dispensing orifice.Therefore, advantageously integrally formed distribution wall 623 is passed by dispensing orifice with pushing wall 621 and guiding walls 624, and have at the upper curtate place one have an eddy-current system the shaping inner surface.
Guiding walls 624 distribution wall 621 and in the extended line of lower curtate 6242, extend especially particularly.Border between guiding walls and the distribution wall does not clearly limit, thereby, can consider the part of lower curtate as a distribution wall part and/or guiding walls.Guiding walls comprises a backstop burr (cordon de but é e) 6241 on the wall within it, is used for cooperating with the shoulder 6141 of guide ring body 614.Guiding walls 624 is with one heart around guide ring body 614.Backstop burr 6241 makes and can be fixed to pusher on the body, thereby said body only can move axially on a range, and said range is to be determined by the distance between guiding walls bottom and the retainer ring 611.
In this embodiment; Piston mechanism 630 comprises main piston 636 and differential piston; Said main piston slides in Master cylinder body 617 with the mode of sealing sliding-contact; Said differential piston is formed by two lips 632 and 633 of sealing sliding-contact in cylinder body, and said cylinder body is formed by the inner surface of distribution wall 623.Said two lips 632 and 633 form on the neighboring of disking body 631.Said piston mechanism 630 is advantageously implemented with unitarily formed mode.Said two lips 632 and 633 1 extend on another, and its spacing is long greater than the axial exhibition of eddy-current system 626.On rest position, as shown in Figure 1, upper lip 632 contacts with upper curtate 6232 on eddy-current system 626, and lower lips 633 contacts with lower curtate 6242 under eddy-current system 626.Thereby eddy-current system can not be communicated with the inboard of pusher, except the space that is formed between two lips 632 and 633.Be in rest position, piston mechanism 630 is pressed against by spring 640 and pushes on the wall 621.Can consider to form differential piston by the disking body 631 that forms two lips 632 and 633.Advantageously, piston mechanism also comprises backstop rib 6321, and said backstop rib is positioned near the lip 632.Said backstop rib extends in lip 632 with one heart, because said lip is formed by the outer rim of annular lip, and the formation of the inner edge of the said annular lip of said cause.Backstop rib 6321 is used for and contacts by pushing the sealing stop surface 6321 sealing backstops that wall forms.Said backstop rib is pushed towards said surface by spring, and on rest position, sets up the sealing contact, shown in Fig. 1-3.Said surperficial 6213 frusto-conical shape tends to axially outwards promote backstop rib 6321, thereby causes lip 632 more effectively with respect to upper surface section 6232 extruding lips 632.Thereby the sealing that on rest position, is improved.
Piston mechanism 630 also forms axial centre bar 637, and it extends to leave from disking body 631 pushes wall 621.Said axial stem 637 partly is bonded in the import sleeve 616 that is formed by body 610.Said bar 637 forms the type body of valve, is used for cooperating with the corresponding type body that is formed by sleeve 616.That is to say that the said bar 637 that cooperates with sleeve forms the inlet valve of pump chamber 1, hereinafter will describe.In addition, piston mechanism 630 forms piston bushing 635, forms main piston 636 in its lower end.Piston bushing 635 extends around axial stem 637 with one heart, thereby between them, limits the circular passage, and said circular passage is passed the hole 634 of flowing through of fluid product and extended through disking body 631 ground.
Body 610, pusher 620 and piston mechanism 630 form pump chamber 1 together, said pump chamber between Master cylinder body 617 and the sleeve 616, between piston bushing 635 and the axial stem 637, in the hole 634 of flowing through, and disking body 631 and push between the inner surface of wall 621 and extend continuously.Thereby disking body 631 upper surfaces and said inner surface form the wall elements of pump chamber 1.On rest position, as shown in Figure 1, spring 640 promotes piston mechanism 630 makes it against pushing wall 621.Inlet valve by the cooperation between axial stem 637 and the sleeve 616 forms is opened.Two lips of differential piston contact with the cylinder body that the inner surface by distribution wall 623 forms.
In addition, the backstop rib contacts with stop surface 6321 sealings.Thereby on rest position, the complete and dispensing orifice isolation of pump chamber.
Push 6211 last times of surface when power is applied to push wall outer, cause that pusher is with respect to the body axially-movable.Because piston mechanism abuts against and pushes wall, piston mechanism is pushed device and promotes.In the phase I, the motion of pusher causes inlet valve to be closed: axial stem 637 deeper engages in the sleeve 616, until between sleeve and bar, realizing the sealing sliding-contact.Thereby pump chamber 1 is isolated with holder 5.From this moment, the fluid product in the pump chamber 1 is under the pressure.Because fluid product is incompressible, total displacement volume of pump chamber keeps constant.But, because main piston 636 penetrates cylinder body 617, thereby reduced the capacity of pump chamber bottom, just must set up new capacity.Differential piston moves apart to be pushed wall 621 and makes it to become possibility.This makes two lips 632 and 633 in distribution wall 623, slide, and in the 6321 places depressurization contact of backstop rib.Thereby two lips move until upper lip 632 and arrive eddy-current system 626.At this moment, being in fluid product under the pressure in the pump chamber finds through eddy-current system with through the exit passageway of dispensing orifice.Thereby said path stays open the power that can overcome spring until indoor pressure.In case indoor pressure drops to certain limit, the spring handle differential piston pushes back towards rest position, shown in figure.Eddy-current system and dispensing orifice are then isolated with pump chamber again.
Can notice that upper lip 632 directly directly contacts with fluid product, and lower lips does not contact directly with fluid product.Thereby upper lip is slided in the top of the cylinder body that is limited the upper curtate on the eddy-current system.Said top provides a surface, and its quality is superior to directly extending in the quality on the surface of the part under the upper curtate under the eddy-current system, and the moulding core that this part possibly be moved out of damages.And lower lips 633 is slided against the lower surface section, this lower surface section can not be used to form eddy-current system core shift out damage, because of its internal diameter bigger than the diameter of core.
An advantage of the present invention is that piston mechanism 630 is pressed against and pushes on the wall 621, and opens from the said wall shift of pushing under the effect that increases of the pressure in pump chamber.This point specifically is to realize that through the hole 634 of flowing through of fluid product the disking body 631 of said formation differential piston is arranged to pass in the hole of flowing through of fluid product.Thereby we can say and push the wall elements that wall defines pump chamber.
Suppose that upper lip 632 slides on the top of sliding cylinder body with sealing means---the moulding core of the indenture line that is formed for molded eddy-current system (empreint n é gative) that said top can not be moved out of damages, differential piston be formed in the distribution wall eddy-current system explicitly away from push wall this to move at demoulding design aspect be favourable.
Arrive rest position when also it may be noted that outside the backstop burr 6241 that is formed by guiding walls 624 is resisted against under the shoulder 6141.
Also possibly consider to omit the upper lip 632 of differential piston fully, like this, said differential piston then only is provided with a lower lips 633 and a backstop rib.The backstop rib guarantees the static sealing when ceasing state, is enough like this.Lower lips guarantees the dynamic seal (packing) when action.Therefore, in the face of the sidewall 6323 of the differential piston of dispensing orifice and eddy-current system can keep not contacting with distribution wall, except at lower lips 633 places.
In case the backstop burr leaves stop surface, the passage between chamber and dispensing orifice is set up.Do not need to form dispensing orifice above that and advantageously generate the sealed lip of swiping on the upper curtate of eddy-current system.
Through the present invention, the lip of differential piston slides in cylinder body, cylinder body not can by core shift out damage, especially when distribution wall forms eddy-current system.Diameter difference between upper curtate and the lower curtate makes possibly obtain such result.
And pusher makes it possible to achieve a distributor around the ring set body slip of body, and wherein, the diameter of the pusher of said distributor is equal to or greater than the diameter of body and the diameter of holder.Pusher can extend on the extended line of holder, thereby gives the more profile of tubulose of distributor.This characteristic can be independent of the characteristic relevant with differential piston and implement.

Claims (10)

1. fluid dispenser member (600), said fluid dispenser member has a distribution wall (623), and said distribution wall limits a columniform outer surface and a columniform inner surface; Said wall is passed by a dispensing orifice (625), and said dispensing orifice is connected to outer surface to inner surface, and said inner surface forms one and is used for a piston (632; 633) sealing sliding cylinder body, said piston are suitable for moving in said cylinder body with sealing contact mannar, optionally to open said dispensing orifice; Said piston forms the wall elements of a fluid product chamber (1); In said fluid product chamber, fluid product is selectively placed under the pressure
Said fluid dispenser member is characterised in that; Said inner surface extends on two surface segment; I.e. a upper curtate (6232) and a lower curtate (6242); Said upper curtate has the internal diameter less than the internal diameter of said lower curtate, and said dispensing orifice is formed on said upper curtate place, and said piston comprise one with the sealed lip (633) of said lower curtate sealing sliding-contact.
2. according to the described fluid dispenser member of claim 1, it is characterized in that, said piston comprise one with second lip (632) of said upper curtate sealing sliding-contact.
3. according to the described fluid dispenser member of claim 1, it is characterized in that said piston does not contact with said upper curtate.
4. according to the described fluid dispenser member of claim 1; It is characterized in that; Said piston comprises the backstop rib (6321) of a sealing; Said backstop rib contacts with stop surface (6213) sealing backstop, and said piston flexibly is pressed against on the said sealing stop surface at rest position, and the sealing contact between said backstop rib and the said stop surface is kept apart said chamber from said dispensing orifice hermetically.
5. according to the described fluid dispenser member of claim 4, it is characterized in that said stop surface is frusto-conical and radially outward presses and touch said backstop rib.
6. require each described fluid dispenser member in 1 to 5 according to aforesaid right, it is characterized in that, said surface segment is cylindrical and interconnects through a transition zone (6243) that said transition zone is a conical butt.
7. require each described fluid dispenser member in 1 to 5 according to aforesaid right; It is characterized in that; Said distribution wall is formed by the skirt section (622) of general cylindrical, and said skirt section also comprises a guiding walls (624), and said guiding walls limits an inner surface; The inner surface of said guiding walls extends in the extended line of said lower curtate, and said guiding walls comprises the interior hook device (6241) with outer holding device (6141) butt.
8. according to claim 4 or 5 described fluid dispenser members; It is characterized in that said distribution wall is formed by a pusher, said pusher also comprises pushes wall; The said wall of pushing is extended by said distribution wall at its peripheral place, and said stop surface is formed by the said wall of pushing.
9. require each described fluid dispenser member in 1 to 5 according to aforesaid right, it is characterized in that, at said upper curtate place, said inner surface formation one directly is positioned at the fluid product eddy-current system (626) at the said dispensing orifice upper reaches.
10. require each described fluid dispenser member in 1 to 5 according to aforesaid right, it is characterized in that, the said sealed lip (633) that contacts with said lower curtate is flexibly extruded towards said upper curtate on rest position.
CN2005800057117A 2004-02-23 2005-02-14 Fluid dispenser member Active CN1921952B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0401789A FR2866579B1 (en) 2004-02-23 2004-02-23 FLUID PRODUCT DISPENSING MEMBER
FR0401789 2004-02-23
PCT/FR2005/050093 WO2005084820A1 (en) 2004-02-23 2005-02-14 Liquid product dispensing device

Publications (2)

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CN1921952A CN1921952A (en) 2007-02-28
CN1921952B true CN1921952B (en) 2012-02-22

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Country Status (7)

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EP (1) EP1722896B1 (en)
JP (1) JP2007522933A (en)
CN (1) CN1921952B (en)
BR (1) BRPI0507319B1 (en)
ES (1) ES2532120T3 (en)
FR (1) FR2866579B1 (en)
WO (1) WO2005084820A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2919275B1 (en) * 2007-07-24 2012-04-27 Valois Sas FLUID PRODUCT DISPENSING MEMBER.
DK2685876T3 (en) * 2011-03-14 2019-01-28 Essity Hygiene & Health Ab A DISPENSER MECHANISM AND A DISPENSER
GB201312362D0 (en) * 2013-07-10 2013-08-21 Leafgreen Ltd A divider part for containers
FR3052446B1 (en) * 2016-06-10 2018-07-13 Karine Courtin DEVICE FOR DISPENSING FLUID PRODUCT

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4271990A (en) * 1978-05-12 1981-06-09 Security Plastics, Inc. Pumping system for dispensing product from a container
US4591077A (en) * 1985-01-28 1986-05-27 Corsette Douglas Frank Continuous discharge dispenser
US4640443A (en) * 1983-06-08 1987-02-03 Corsette Douglas Frank Manually operated dispensing pump
US6012615A (en) * 1995-12-22 2000-01-11 Valois S.A. Precompression pump formed within the pusher element

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4271990A (en) * 1978-05-12 1981-06-09 Security Plastics, Inc. Pumping system for dispensing product from a container
US4640443A (en) * 1983-06-08 1987-02-03 Corsette Douglas Frank Manually operated dispensing pump
US4591077A (en) * 1985-01-28 1986-05-27 Corsette Douglas Frank Continuous discharge dispenser
US6012615A (en) * 1995-12-22 2000-01-11 Valois S.A. Precompression pump formed within the pusher element

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
US 4271990 A,附图8,10、说明书第7栏第23行至第46行.

Also Published As

Publication number Publication date
JP2007522933A (en) 2007-08-16
FR2866579B1 (en) 2006-05-26
CN1921952A (en) 2007-02-28
BRPI0507319A (en) 2007-06-26
ES2532120T3 (en) 2015-03-24
EP1722896B1 (en) 2014-12-17
EP1722896A1 (en) 2006-11-22
BRPI0507319B1 (en) 2018-05-02
WO2005084820A1 (en) 2005-09-15
FR2866579A1 (en) 2005-08-26

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