EP0571280A1 - Dispenser with a plunging sleeve - Google Patents

Dispenser with a plunging sleeve Download PDF

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Publication number
EP0571280A1
EP0571280A1 EP93401286A EP93401286A EP0571280A1 EP 0571280 A1 EP0571280 A1 EP 0571280A1 EP 93401286 A EP93401286 A EP 93401286A EP 93401286 A EP93401286 A EP 93401286A EP 0571280 A1 EP0571280 A1 EP 0571280A1
Authority
EP
European Patent Office
Prior art keywords
pump
neck
socket
dispensers according
container
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.)
Granted
Application number
EP93401286A
Other languages
German (de)
French (fr)
Other versions
EP0571280B1 (en
Inventor
Alain Behar
Pierre Amiel
Jean-Louis Bougamont
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.)
S O F A B
Albea Le Treport SAS
Original Assignee
S O F A B
Sofab SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from FR9205978A external-priority patent/FR2705651A1/en
Application filed by S O F A B, Sofab SA filed Critical S O F A B
Publication of EP0571280A1 publication Critical patent/EP0571280A1/en
Application granted granted Critical
Publication of EP0571280B1 publication Critical patent/EP0571280B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B05B11/0005—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
    • B05B11/1042—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
    • B05B11/0005—Components or details
    • B05B11/0097—Means for filling or refilling the sprayer
    • 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
    • B05B11/1001—Piston pumps
    • B05B11/1023—Piston pumps having an outlet valve opened by deformation or displacement of the piston relative to its actuating stem
    • B05B11/1026—Piston pumps having an outlet valve opened by deformation or displacement of the piston relative to its actuating stem the piston being deformable and its deformation allowing opening of the outlet
    • 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
    • B05B11/1061—Pump priming means

Definitions

  • Distributors of more or less fluid products are known, formed of a cylindrical barrel case, one end of which, usually its lower end, is provided with a movable bottom normally retained by any ring, and which is capped at the other end by a distributor pump with axial connection.
  • the parts are advantageously molded parts capable of being assembled by simple fitting.

Landscapes

  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Closures For Containers (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Nozzles (AREA)

Abstract

The subject of the invention is a device for dispensing products which are more or less fluid, formed by a container having a cylindrical body (one end of which is provided with a movable bottom and the opposite end of which is capped by a dispensing pump shell), one end of which is provided with a movable bottom and the opposite end of which is capped by a dispensing pump having an axial connector and mounted on a plunging sleeve (4), the front face of which penetrates into the neck (1b) of the container (1) when fixing the dispenser subassembly (4/5/6), which ends up, upon sealed sliding, being placed entirely beneath the upper edge of the corresponding bearing surface of this neck. This simplifies filling and air purging. <IMAGE>

Description

On connait des dispensateurs de produits plus ou moins fluides formés d'un étui à fût cylindrique dont une extrémité, usuellement son extrémité basse, est dotée d'un fond mobile normalement retenu par une bague quelconque, et que coiffe à l'autre extrémité une pompe distributrice à prise axiale. La pression atmosphérique faisant monter le fond au fur et à mesure du prélèvement du produit par la pompe, ceci permet à la fois de maintenir à l'abri de l'air la pâte ou crême, voire le liquide, et de les chasser méthodiquement lors de l'emploi. Les pièces sont avantageusement des pièces moulées aptes à se monter par simple emboîtement .Distributors of more or less fluid products are known, formed of a cylindrical barrel case, one end of which, usually its lower end, is provided with a movable bottom normally retained by any ring, and which is capped at the other end by a distributor pump with axial connection. The atmospheric pressure causing the bottom to rise as the product is withdrawn by the pump, this makes it possible both to keep the dough or cream, or even the liquid, away from the air, and to methodically expel them during employment. The parts are advantageously molded parts capable of being assembled by simple fitting.

Un tel dispensateur peut être conçu de façon qu'on l'emplisse tête en bas avant pose du fond mais il paraît plus avantageux d'opérer en position normale en finissant par la pose de la pompe ; le plus simple pour le conditionneur est alors d'injecter le produit dans l'étui déjà muni de son fond, puis de fermer le conditionnement d'un seul bloc par pose d'un sous-ensemble distributeur comprenant une pompe entièrement assemblée possédant une douille de réduction étanche.Such a dispenser can be designed so that it is filled upside down before laying the bottom, but it seems more advantageous to operate in the normal position, ending with the laying of the pump; the simplest for the conditioner is then to inject the product into the case already provided with its bottom, then to close the packaging in a single block by fitting a dispenser sub-assembly comprising a fully assembled pump having a socket waterproof reduction.

Cette douille comporte un siège formant la partie basse de la pompe distributrice ou destiné à la recevoir et traversé par l'orifice de prise, et un voile qui relie ce siège au récipient, venant coiffer ce dernier pour créer intérieurement un toit en entonnoir dont la forme correspond à celle du fond mobile, ce qui évite les pertes de produit; elle peut porter un puits qui recevra le corps de pompe.This socket comprises a seat forming the bottom part of the dispensing pump or intended to receive it and traversed by the intake orifice, and a veil which connects this seat to the container, coming to cover the latter to internally create a funnel roof whose shape corresponds to that of the movable bottom, which avoids product loss; it can carry a well which will receive the pump body.

Un inconvénient est toutefois qu'il devient difficile d'empêcher la subsistance d'une poche d'air susceptible de désamorcer la pompe ou du moins de gêner le fonctionnement. L'invention se propose d'y obvier en donnant à la douille étanche la forme d'un plongeur dont la face frontale pénétrera dans le col en coulissant lors de la fixation de l'ensemble distributeur, venant entièrement se placer au dessous du bord supérieur de la portée correspondante dudit col.A drawback is however that it becomes difficult to prevent the subsistence of an air pocket capable of defusing the pump or at least of interfering with the operation. The invention proposes to obviate this by giving the sealed socket the shape of a plunger, the front face of which will penetrate into the neck by sliding when the dispenser assembly is fixed, coming entirely to be placed below the upper edge. of the corresponding range of said collar.

Quelle que soit alors la consistance du produit, il devient ainsi possible d'en remplir assez l'étui pour pouvoir ensuite, lors de la fermeture, refouler ce produit à l'aide de la douille étanche de manière à achever de chasser l'air du récipient, vers le corps de la pompe, en profitant de l'ouverture volontaire ou spontanée de la soupape d'admission de cette dernière et éventuellement, lorsque la structure de la pompe le permet, d'évacuer au moins en partie cet air par ouverture de sa soupape d'échappement. Il y a lieu que cette face forme un toit suffisamment pentu, incliné en principe à 20 au moins pour éviter alors l'accrochage de bulles d'air à sa paroi.Whatever the consistency of the product, it thus becomes possible to fill the case enough to be able to then, when closing, repress this product using the waterproof sleeve so as to complete the expulsion of air from the container, towards the body of the pump, taking advantage of the voluntary or spontaneous opening of the inlet valve of the latter and possibly, when the structure of the pump allows, at least partially evacuate this air by opening of its exhaust valve. This face should form a sufficiently sloping roof, inclined in principle at least 20 to then avoid the attachment of air bubbles to its wall.

De façon avantageuse, I'étanchéité n'interviendra qu'en fin de course, de part et d'autre d'un espace mort vers lequel la douille aura au préalable chassé une partie de l'air et du produit.Advantageously, the seal will only intervene at the end of the travel, on either side of a dead space towards which the sleeve will have previously expelled part of the air and of the product.

Ces caractéristiques seront explicitées ci-dessous par la description d'exemples avantageux, faite en liaison avec les dessins, qui représentent:

  • figure 1 une coupe longitudinale des deux sous-ensembles supérieur A et inférieur B d'un dispensateur en cours de fabrication,
  • figure 2 : une variante améliorée,
  • figure 3 : une version à prise en siphon.
These characteristics will be explained below by the description of advantageous examples, made in conjunction with the drawings, which represent:
  • FIG. 1 a longitudinal section of the two upper A and lower B subassemblies of a dispenser during manufacture,
  • Figure 2: an improved variant,
  • Figure 3: a version with a siphon.

Le dispensateur représenté figure 1 comprend un étui 1 à fût 1a, cylindrique quoique non nécessairement circulaire, recevant un piston 2 de même contour, qui sert de fond mobile ; ce dernier est retenu par une bague 3 qui peut aller d'un simple ressaut ou circlip à un double-fond laissant subsister une entrée d'air. Ce sous-ensemble B forme en somme le récipient.The dispenser shown in FIG. 1 comprises a case 1 with a barrel 1 a , cylindrical although not necessarily circular, receiving a piston 2 of the same outline, which serves as a movable base; the latter is retained by a ring 3 which can range from a simple projection or circlip to a double bottom leaving an air inlet. This subset B basically forms the container.

Le fond mobile 2 possède de préférence deux lèvres 2a et 2b dirigées en sens inverses. La lèvre 2a, qui reste en retrait de sa face supérieure, sert essentiellement de râcleur lors de la remontée sous l'effet de la dépression créée par la pompe, empêchant toute irrégularité de consistance et de comportement du produit de venir soulever la lèvre 2b qui, pour sa part, servant essentiellement à éviter toute entrée d'air par le fond, joue le rôle principal et forme la lèvre d'étanchéité proprement dite.The movable bottom 2 preferably has two lips 2 a and 2 b directed in opposite directions. The lip 2 a , which remains set back from its upper face, essentially serves as a scraper during the ascent under the effect of the vacuum created by the pump, preventing any irregularity in consistency and behavior of the product from lifting the lip 2 b which, for its part, essentially serving to prevent any entry of air from the bottom, plays the main role and forms the sealing lip proper.

Une douille 4 reçoit la pompe distributrice 5. Son corps 5a est fermé par sa collerette 6 qui y retient le piston 7 dont la tige 7a forme un gicleur porteur d'une tête 8 servant de poussoir et équipée d'une buse adéquate. Ce sous-ensemble A constitue le distributeur.A socket 4 receives the dispensing pump 5. Its body 5 a is closed by its collar 6 which retains the piston 7, the rod 7 of which forms a nozzle carrying a head 8 serving as a pusher and equipped with an adequate nozzle. This sub-assembly A constitutes the distributor.

De façon connue, la pompe possède une soupape d'admission à bille 9a et une soupape d'échappement à manchon coulissant 9b. Au repos, le piston 7, que son ressort 10 renvoie vers le haut, fait en outre étanchéité sur la collerette 6 par le biais du manchon 9b.In known manner, the pump has a ball intake valve 9 a and a sliding sleeve exhaust valve 9 b . At rest, the piston 7, which its spring 10 returns upwards, also seals the collar 6 by means of the sleeve 9b .

Le voile 4a de la douille 4 porte un orifice central bordé d'un siège 4b sur lequel l'extrémité inférieure de la pompe où se trouve sa prise 5b s'adapte de façon étanche lors du montage, une portée externe 4c, et un puits où le corps 5a vient se loger, son rebord 4d immobilisant enfin la pompe par l'intermédiaire de la collerette 6 de cette dernière.The veil 4 a of the sleeve 4 carries a central orifice bordered by a seat 4 b on which the lower end of the pump where its socket 5 b is located adapts tightly during assembly, an external bearing 4 c , and a well where the body 5 a is housed, its rim 4 d finally immobilizing the pump by means of the collar 6 of the latter.

La face inférieure conique du voile 4a forme entonnoir vers son orifice, dans l'axe duquel est placée la pompe ; lors de l'assemblage des deux sous-ensembles elle créera le toit du récipient ; le profil du fond mobile 2 lui correspond, de manière à éviter les pertes de produit en fin d'utilisation. Si la pompe est munie d'un évent 5c, ce dernier sera neutralisé par la douille 4 qui maintiendra ainsi le réservoir de produit P à l'abri de l'air.The conical underside of the web 4 has a funnel shape towards its orifice, in the axis of which the pump is placed; during the assembly of the two sub-assemblies it will create the roof of the container; the profile of the movable bottom 2 corresponds to it, so as to avoid loss of product at the end of use. If the pump is provided with a vent 5 c , the latter will be neutralized by the socket 4 which will thus keep the product reservoir P away from air.

La douille est apte à s'assembler sur l'étui 1 pour le fermer à sa partie supérieure, un collet 4e pouvant avantageusement l'arrêter en butée ou des crans la retenir sur un rebord du col.The sleeve is able to assemble on the case 1 to close it at its upper part, a collar 4 e which can advantageously stop it in abutment or notches retain it on a rim of the neck.

Selon l'invention, sa paroi externe y coulisse à la façon d'un plongeur, de façon étanche en fin de course le long d'une portée interne correspondante 1b sur une distance suffisante pour amener la prise sous le bord supérieur de cette portée ; dans le haut, des passages 1c assurent initialement l'évacuation de l'air.According to the invention, its external wall slides therein in the manner of a plunger, in a sealed manner at the end of the race along a corresponding internal surface 1 b over a distance sufficient to bring the grip under the upper edge of this range. ; at the top, passages 1 c initially ensure the evacuation of the air.

Cette construction permet de fabriquer l'ensemble des pièces par injection et, avantageusement, de les monter par emboîtement.This construction makes it possible to manufacture all of the parts by injection and, advantageously, to mount them by interlocking.

En vue de son conditionnement, le produit P est placé dans l'étui 1, en quantité correspondant de façon précise à la dose désirée, montant à un niveau, plus ou moins régulier selon sa viscosité, proche d'un niveau moyen N. Lors de la pose du sous-ensemble supérieur, la douille 4 va chasser l'air vers l'extérieur puis, faisant étanchéité, en refouler vers la pompe la portion restée captive, soulevant le clapet d'admission 9a. Son arête basse atteignant ensuite le produit, elle en chassera vers la prise 5b la portion initialement extérieure à la position finale du cône entonnoir, de volume proche du volume interne de la pompe ; elle l'obligera ainsi à remplir au moins en partie cette dernière pour en faciliter l'amorçage. Ceci y comprime donc l'air et même le chassera en partie à l'extérieur contre la résistance du manchon 9b, si l'on a pris soin d'appuyer sur le piston, le cas échéant déjà muni de sa tête, pour libérer l'échappement.In view of its packaging, the product P is placed in the case 1, in an amount corresponding precisely to the desired dose, rising to a level, more or less regular depending on its viscosity, close to an average level N. During laying the upper sub-assembly, the sleeve 4 will expel the air outward and then, by sealing, by discharging to the pump remains captive portion, lifting the intake valve 9 a. Its low edge then reaching the product, it will drive towards the outlet 5 b the portion initially external to the final position of the funnel cone, of volume close to the internal volume of the pump; it will thus oblige it to at least partially fill the latter to facilitate initiation. This therefore compresses the air and even partially expels it outside against the resistance of the sleeve 9b, if care has been taken to press the piston, if necessary already provided with its head, to release the 'exhaust.

La figure 2 montre sous les mêmes repères une mise en oeuvre où le corps d'une pompe 5 analogue est seulement emboîté dans sa collerette 6 qui d'autre part sert elle-même de bague de réduction pour la fixation du sous-ensemble distributeur sur le col du récipient 1, tandis que la douille étanche 4 est seulement emmanchée frottante sur la partie basse du corps de la pompe 5.FIG. 2 shows under the same references an implementation in which the body of a similar pump 5 is only fitted into its collar 6 which, on the other hand, itself serves as a reduction ring for fixing the distributor sub-assembly to the neck of the container 1, while the sealed sleeve 4 is only fitted with friction on the lower part of the body of the pump 5.

Cette solution est plus avantageuse à plusieurs égards. En premier lieu l'exécution des pièces est plus simple. On constate aussi qu'il existe le long du corps de pompe, masqué par la collerette, un espace mort M d'un volume de l'ordre du quintuple du volume interne de la pompe, et que le passage 1c est constitué par un suralésage qu'une lèvre 6a de cette collerette vient fermer de façon étanche en fin d'assemblage.This solution is more advantageous in several respects. First, the execution of the pieces is simpler. We also note that there is along the pump body, masked by the collar, a dead space M with a volume of the order of five times the internal volume of the pump, and that the passage 1 c is constituted by a overbore that a lip 6 a of this collar comes to close in leaktight manner at the end of assembly.

En effet le processus de remplissage décrit à propos de la version représentée par la figure 1 suppose que la tolérance relative à la quantité de produit introduite dans l'étui 1 soit inférieure au volume interne de la pompe, soit une dose, car il est peu souhaitable que, dès le stade du conditionnement, ce produit envahisse la tête 8 et même déborde par la buse de distribution ; or une telle condition est des plus difficile à remplir dans une fabrication de grande série, effectuée à cadence élevée. Si l'on admet une marge minimale de l'ordre de trois doses, le niveau N variera entre un niveau minimal L proche du débouché de la paroi 1b mais encore apte à fournir un bon amorçage, et un niveau maximal H situé au dessus.In fact, the filling process described in connection with the version represented in FIG. 1 assumes that the tolerance relating to the quantity of product introduced into the case 1 is less than the internal volume of the pump, or a dose, because there is little desirable that, from the packaging stage, this product invades the head 8 and even overflows through the dispensing nozzle; however, such a condition is most difficult to fulfill in mass production, carried out at a high rate. If a minimum margin of the order of three doses is accepted, the level N will vary between a minimum level L close to the outlet of the wall 1 b but still capable of providing good priming, and a maximum level H situated above .

Lors du remplissage, le produit va ainsi, à son tour, par le jeu des sections offertes et des contre-pressions respectives, envahir d'abord une part notable de l'espace mort M. Si le niveau est lui-même supérieur au bord de la paroi 1b, la contenance utile de produit sera fixée avec précision par la venue en étanchéité de la douille 4, I'excès étant perdu mais restant enfermé dans la cartouche.During filling, the product will, in turn, through the play of the sections offered and the respective back pressures, first invade a significant part of the dead space M. If the level is itself higher than the edge of wall 1 b , the useful capacity of product will be fixed with precision by the sealing of the socket 4, the excess being lost but remaining enclosed in the cartridge.

On notera aussi qu'il est alors possible, comme le montre la figure, d'inverser le cône dessiné par la face frontale de la douille, ou partie de ce cône, sans risque de laisser une bulle à la partie supérieure, ce qui réduit la quantité d'air capturée vers la pompe.It will also be noted that it is then possible, as shown in the figure, to reverse the cone drawn by the front face of the sleeve, or part of this cone, without the risk of leaving a bubble at the top, which reduces the amount of air captured to the pump.

Enfin il n'est pas interdit, au prix d'une certaine perte de précision sur la quantité d'air occlus donc sur la contenance utile, de renoncer à la présence de tout dégagement interne créant un passage au dessus de la portée étanche 1b, et de donner seulement à la jupe qui supporte la portée externe 4c de la douille 4 une flexibilité suffisante pour que, étanche principalement aux surpressions externes, elle laisse au remplissage échapper vers l'espace mort air puis produit en excès, sous l'effet de leur transitoire mais notable compression.Finally, it is not prohibited, at the cost of a certain loss of precision on the quantity of air occluded therefore on the useful capacity, to renounce the presence of any internal clearance creating a passage above the sealed range 1 b , and to give only to the skirt which supports the external reach 4 c of the sleeve 4 sufficient flexibility so that, tight mainly to external overpressures, it allows the filling to escape towards the air dead space then produced in excess, under the effect of their transient but noticeable compression.

Pour réduire l'encombrement vertical tout en continuant à employer une pompe normalisée à gicleur et prise axiaux, il sera parfois possible de remonter à la fois le toit formé par le voile de la douille étanche plongeuse et le niveau effectif de la prise, en créant un siphon à l'aide d'une cloche inversée coiffant l'extrémité basse du corps de pompe. Une telle structure est représentée par la figure 3.To reduce the vertical size while continuing to use a standardized pump with axial nozzle and grip, it will sometimes be possible to raise both the roof formed by the veil of the waterproof submerged socket and the effective level of the grip, creating a siphon using an inverted bell covering the lower end of the pump body. Such a structure is shown in Figure 3.

Le récipient 1 y est doté d'un fût à paroi cylindrique 1a, d'un col à portée interne étrécie 1b et d'un fond mobile 2 monté par le bas.The container 1 is provided with a barrel with a cylindrical wall 1 a , a neck with an internal narrowed surface 1 b and a movable bottom 2 mounted from below.

La collerette 6 qui ferme la pompe 5 se replie en une bague de garde 6b avant de se rabattre en une jupe 6c qui sert à fixer la pompe sur le col 1b, la lèvre interne 6a renforçant l'étanchéité sur le col; c'est donc encore elle qui sert de bague de réduction et de fixation.The collar 6 which closes the pump 5 folds up into a guard ring 6 b before being folded down into a skirt 6 c which serves to fix the pump to the neck 1 b , the internal lip 6 a reinforcing the seal on the neck ; it is therefore still it which serves as a reduction and fixing ring.

La douille 4 raccorde intérieurement le corps de la pompe 5 au col 1b de façon étanche vis-à-vis des surpressions externes, le long de ses deux portées 4b et 4c, ici par l'intermédiaire de la lèvre 6a sur laquelle elle prend appui. Formant ainsi le toit du récipient, elle constitue encore une bague plongeuse apte à en purger l'air par simple enfoncement à la fin du remplissage; mais emmanchée sur le haut du corps de la pompe 5, sa face frontale se place cette fois-ci nettement au dessus de l'extrémité basse et de la prise 5b de cette dernière.The sleeve 4 internally connects the body of the pump 5 to the neck 1 b in a sealed manner vis-à-vis the external overpressures, along its two spans 4 b and 4 c , here by means of the lip 6 a on which it is supported. Thus forming the roof of the container, it also constitutes a plunger ring able to purge the air by simple pressing at the end of filling; but fitted on the upper body of the pump 5, its front face is placed this time clearly above the lower end and the socket 5b of the latter.

Dans sa partie plus étroite renfermant le ressort de renvoi de son piston interne, la pompe 5 est coiffée par une cloche 11 qui ramène au sommet du toit le niveau effectif où, à travers des ouïes 11a, la prise du produit s'effectuera en siphon.In its narrower part enclosing the return spring of its internal piston, the pump 5 is capped by a bell 11 which brings the effective level to the top of the roof where, through openings 11 a , the product will take hold in siphon.

Dans des variantes, cette cloche pourrait aussi bien appartenir au corps de pompe que servir elle-même à fixer la pompe sur le récipient, mais il reste préférable d'employer des pièces distinctes pour ne pas avoir à multiplier les formes de moules complexes en fonction des usages prévus. Ceci permet d'ailleurs inversement, selon l'exemple actuel, de constituer d'un seul tenant l'ensemble de la douille purgeuse 4 et de sa cloche de siphonnage 11 au lieu de fixer celle-ci sur la pompe par des éléments en relief qui deviennent même superflus pour son centrage ; toutes les pièces restent moulables par injection, douille et cloche constituant une pièce de forme télescopique, les ouïes placées à leur raccordement.In variants, this bell could as well belong to the pump body as serve itself to fix the pump on the container, but it is preferable to use separate parts so as not to have to multiply the forms of complex molds as a function intended uses. This also makes it possible conversely, according to the current example, to constitute in one piece the assembly of the purge socket 4 and its siphoning bell 11 instead of fixing it on the pump by elements in relief which even become superfluous for its centering; all the parts remain moldable by injection, socket and bell constituting a part of telescopic shape, the gills placed at their connection.

De façon à éviter toute perte de matière, le fond mobile 2 doit bien entendu conserver un profil homologue de celui de la partie haute du récipient mais, précisément, il est facile d'y parvenir en plaçant une cuvette 2c au centre de la ceinture qui porte ses lèvres 2b, étanche à l'air et 2a, racleuse.In order to avoid any loss of material, the movable base 2 must of course maintain a profile homologous to that of the upper part of the container, but, precisely, it is easy to achieve this by placing a bowl 2 c in the center of the belt. who wears his lips 2 b , airtight and 2 a , scraper.

Claims (10)

Dispensateurs de produits plus ou moins fluides formés d'un récipient à fût cylindrique dont une extrémité est dotée d'un fond mobile et que coiffe à l'opposé une pompe distributrice à prise axiale assemblée sur une douille étanche créant intérieurement un toit dont la forme correspond à celle du fond mobile, caractérisés en ce que ladite douille (4) a la forme d'un plongeur dont la face frontale penètre dans le col du récipient (1) lors de la fixation du sous-ensemble distributeur (4/5/6), venant en fin de course se placer entièrement, à coulissement étanche, au-dessous du bord supérieur de la portée (1b) correspondante de ce col.Dispensers of more or less fluid products formed by a container with a cylindrical barrel, one end of which has a movable bottom and which, on the other hand, is capped by a dispensing pump with an axial tap assembled on a watertight socket internally creating a roof whose shape corresponds to that of the movable bottom, characterized in that said socket (4) has the shape of a plunger, the front face of which penetrates into the neck of the container (1) during the fixing of the dispenser sub-assembly (4/5 / 6), coming at the end of the race to be placed entirely, with sealed sliding, below the upper edge of the corresponding seat (1 b ) of this neck. Dispensateurs selon la revendication 1, caractérisés en ce que le toit formé par le voile (1a) de la douille étanche est placé au-dessus de la prise axiale (5b) de la pompe, et qu'une cloche inversée (11) coiffe l'extrémité basse de celle-ci, ménageant des ouïes (11a) au niveau du sommet du toit.Dispensers according to claim 1, characterized in that the roof formed by the web (1 a ) of the sealed socket is placed above the axial socket (5 b ) of the pump, and that an inverted bell (11) cover the lower end thereof, leaving the outlets (11a) to the roof top level. Dispensateurs selon la revendication 2, caractérisés en ce que l'ensemble de la douille étanche (4) et de sa cloche de siphonnage (11) est constitué d'une pièce d'un seul tenant.Dispensers according to claim 2, characterized in that the assembly of the sealed socket (4) and its siphoning bell (11) consists of a single piece. Dispensateurs selon l'une des revendications 1 à 3, caractérisés en ce que la douille étanche (4) est indépendante de la bague de réduction (6) servant à la fixation du sous-ensemble distributeur sur le col et est emmanchée frottante sur le corps de la pompe.Dispensers according to one of claims 1 to 3, characterized in that the watertight sleeve (4) is independent of the reduction ring (6) used for fixing the distributor sub-assembly to the neck and is fitted with friction on the body of the pump. Dispensateurs selon la revendication 4, caractérisés en ce que la douille étanche relie le corps de la pompe au col (1b) par le biais d'une lèvre d'étanchéité (6a) appartenant à la bague de réduction.Dispensers according to claim 4, characterized in that the bushing sealingly connects the body of the pump to the neck (1b) via a sealing lip (6a) belonging to the reduction ring. Dispensateurs selon la revendication 4, caractérisés en ce que la bague de réduction est formée par la collerette fermant la pompe.Dispensers according to claim 4, characterized in that the reduction ring is formed by the flange closing the pump. Dispensateurs selon la revendication 1, caractérisés par une double étanchéité (4c, 6a) permettant cependant l'évacuation de l'air et du produit (P) en excès le long de la portée externe (4c) de la douille (4) vers un espace mort intermédiaire (M).Dispensers according to claim 1, characterized by a double seal (4 c , 6 a ), however, allowing the evacuation of air and excess product (P) along the external surface (4 c ) of the sleeve (4 ) to an intermediate dead space (M). Dispensateurs selon la revendication 7, caractérisés en ce que c'est un passage (1c) qui, sur le haut du col, met en communication le réservoir de produit (P) avec l'espace intermédiaire.Dispensers according to claim 7, characterized in that it is a passage (1 c ) which, on the top of the neck, puts the product reservoir (P) in communication with the intermediate space. Procédé de conditionnement de dispensateurs selon l'une des revendications 1 à 8, caractérisé en ce qu'après mise en place du fond mobile et remplissage du récipient,on pose un sous-ensemble distributeur comprenant pompe et douille étanche plongeuse de manière à refouler l'air puis le produit en provoquant au moins l'ouverture de la soupape d'admission pour purger le dispositif.Dispensing method for dispensers according to one of claims 1 to 8, characterized in that after the mobile base has been fitted and the container has been filled, a dispenser sub-assembly is installed comprising pump and sealed submerged sleeve so as to discharge the then the product causing at least the opening of the intake valve to purge the device. Procédé selon la revendication 9, caractérisé en ce que l'on évacue également un excès d'air puis de produit vers un espace mort intermédiaire, le long de la portée externe de la douille étanche.Method according to claim 9, characterized in that an excess of air and then of product is also evacuated towards an intermediate dead space, along the external surface of the sealed socket.
EP93401286A 1992-05-18 1993-05-18 Dispenser with a plunging sleeve Expired - Lifetime EP0571280B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR9205978A FR2705651A1 (en) 1992-05-18 1992-05-18 Dispenser with plunger socket.
FR9205978 1992-05-18
FR9209114A FR2690901B1 (en) 1992-05-18 1992-07-24 Dispenser with dip socket.
FR9209114 1992-07-24

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EP0571280A1 true EP0571280A1 (en) 1993-11-24
EP0571280B1 EP0571280B1 (en) 1997-05-02

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US (2) US5449094A (en)
EP (1) EP0571280B1 (en)
JP (1) JP3502120B2 (en)
CA (1) CA2096203C (en)
DE (1) DE69310267T2 (en)
ES (1) ES2104093T3 (en)

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EP1050481A1 (en) * 1999-05-07 2000-11-08 Valois Sa Snap-on dispenser with a follower plunger
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US10569033B2 (en) 2013-04-16 2020-02-25 Dance Biopharm Inc. Liquid dispensing and methods for dispensing liquids
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CN108778525B (en) * 2016-01-22 2021-08-31 卡普苏姆公司 Apparatus, venting ring and method for packaging and dispensing a product in an airless manner

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Publication number Publication date
JPH06100061A (en) 1994-04-12
JP3502120B2 (en) 2004-03-02
CA2096203A1 (en) 1993-11-19
US5449094A (en) 1995-09-12
EP0571280B1 (en) 1997-05-02
ES2104093T3 (en) 1997-10-01
CA2096203C (en) 2005-09-13
DE69310267D1 (en) 1997-06-05
US5548943A (en) 1996-08-27
DE69310267T2 (en) 1997-10-09

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