EP0823288B1 - System for sealingly mounting a miniature pump onto a little container - Google Patents

System for sealingly mounting a miniature pump onto a little container Download PDF

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Publication number
EP0823288B1
EP0823288B1 EP97401880A EP97401880A EP0823288B1 EP 0823288 B1 EP0823288 B1 EP 0823288B1 EP 97401880 A EP97401880 A EP 97401880A EP 97401880 A EP97401880 A EP 97401880A EP 0823288 B1 EP0823288 B1 EP 0823288B1
Authority
EP
European Patent Office
Prior art keywords
sleeve
zone
reservoir
smooth
grooved
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.)
Expired - Lifetime
Application number
EP97401880A
Other languages
German (de)
French (fr)
Other versions
EP0823288A1 (en
Inventor
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.)
Silgan Dispensing Systems Le Treport SAS
Original Assignee
Rexam Dispensing Systems SAS
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
Application filed by Rexam Dispensing Systems SAS filed Critical Rexam Dispensing Systems SAS
Publication of EP0823288A1 publication Critical patent/EP0823288A1/en
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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
    • B05B11/0005—Components or details
    • B05B11/0037—Containers
    • B05B11/0039—Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means
    • B05B11/0044—Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means compensating underpressure by ingress of atmospheric air into the container, i.e. with venting means
    • 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

Definitions

  • the present invention relates to an assembly system tightness of a miniature pump on a small capacity tank.
  • the closing of the tank which is done by fitting forced sealing of the sleeve supporting the pump, may cause overpressure of air inside said tank, in particular when there is no no means of evacuating the compressed air.
  • This overpressure then generates brutal jets and aerosols of products when the pump is opened for the first time.
  • Another technique is to make a groove longitudinal on the side wall of the sleeve or tank, which ensures the exhaust of the compressed air and which is closed at the top by a transverse shoulder as described in US 4,311,255 (MESHBERG).
  • EP-A-571 280 describes a pump body support bushing intended to be fitted into the upper part of a tank.
  • a groove 1c, forming a vent, is formed on the internal lateral wall of the tank. The arrangement is such that the radial tightening of the part making sealing cannot be exercised over the entire height thereof.
  • the object of the present invention is to solve the problems previous techniques satisfactorily.
  • the grooved zone has a diameter identical to or less than 5% less than the diameter of the smooth zone adjacent.
  • said sleeve comprises a upper shoulder forming a stop for the free edge of the tank.
  • said grooved areas and smooth are made on the inner wall of the tank, for a internal fitting of the sleeve.
  • said grooved and smooth areas are made on the external wall of the tank, for a fitting outside of the sleeve.
  • said grooved areas and smooth are made on the inner wall of the sleeve, for its external fitting.
  • said grooved areas and smooth are made on the outer wall of the sleeve, for its internal fitting.
  • said grooved area is located under said smooth area and is extends downward through a lower area of reduced diameter.
  • the side wall of the tank has a lower shoulder forming a stop for the free edge of the side wall of the sleeve.
  • the grooved zone is ends on the side opposite the smooth area with a chamfered edge and, if applicable if necessary, the free edge of the side wall of the sleeve and / or of the reservoir is chamfered.
  • said grooved area has only one longitudinal groove.
  • Another project of the invention is a method of tight assembly of a miniature pump (P), the body of which is supported by a sleeve (M) on a reservoir (R) of small capacity, previously filled and liquid product, characterized in that the sleeve (M) is positioned coaxially on the neck of the reservoir (R) and its forced fitting, internal or external, is carried out so as to first obtain an exhaust of the compressed air through a grooved zone (1) of the sleeve (M) or of the reservoir (R), then a final seal by peripheral radial tightening of a smooth zone (2) and of a smooth part (3) of the bearing surfaces facing the sleeve (M) and of the reservoir (R), said smooth zone of the sleeve (M) or of the reservoir (R) being longitudinally adjacent to the grooved zone of the sleeve or of the reservoir, said smooth part (3) of the wall facing the reservoir or of the sleeve having a haunting, relative to that of the facing zones, capable of gradually closing said
  • the fitting forced is performed at constant speed and continuously for maintain, at least during exhaust, a permanent balance of air pressures between the inside and outside of the tank.
  • the forced fitting is carried out discontinuously, with a first support step during which an air overpressure is generated inside the tank then a time stop with maintenance in the fitting position obtained for allow the escape of compressed air, until the establishment of a balance of air pressures between the inside and outside of the tank and assembly is particularly simple and quick since a single operation assembly is sufficient.
  • the assembly system of the invention proceeds from the combination of a grooved area, an adjacent smooth area and a smooth facing wall intended to slide relatively and in clamping radial in contact with said areas.
  • the smooth wall being in radial clamping both with the smooth zone that with the grooved zone, each of these zones participates in the holding mechanical assembly.
  • the grooved area is gradually closed by sliding until completely sealed, as the surface of the worn opposite increases.
  • the final sliding phase leads to a reinforced seal by contacting parallel smooth zones over a height determined according to the slight admissible overpressure.
  • the relative sliding of the facing spans is very easily taking into account the nature of the constituent material to plastic behavior.
  • the forced fitting causes a reaction of the parts in radial clamping, which results in particular in a elastic deformation of the areas in contact and more precisely by a crushing of the internal walls and dilation of the external walls.
  • the diameter outside the free zone is slightly higher (at most 5%) than that of the grooved area which is more easily compressible.
  • the system of the invention applies equally well to a internal fitting that external of the sleeve, which offers multiple possibilities as for the embodiments of the distributor.
  • Figure 1a shows a vertical sectional view of a miniature distributor before assembly.
  • This distributor includes a pump P whose body is supported by a sleeve M and the head T forming a pusher, is capped by a cover C resting on the sleeve M.
  • the sleeve M is intended to be force-fitted, here of internally, in a tank R of small capacity beforehand filled with a sample E of liquid product.
  • FIG. 1b The detail view in section of FIG. 1b represents a side of the side wall of the sleeve M.
  • the external face of this wall comprises a grooved zone 1 for the exhaust of the air which is compressed in the reservoir R, above the free surface of the product E, by the lowering of sleeve M.
  • the grooved area 1 consists of only one groove longitudinal 10.
  • the grooved area 1 can consist of a series of grooves longitudinal 10 parallel to each other, arranged peripherally on the side wall of the sleeve or even, according to another mode, in the form of a helical groove.
  • the grooved zone 1 is delimited longitudinally, and here towards the high, by an adjacent smooth zone 2 whose outside diameter is the same as or more than 5% greater than the diameter of the grooved area 1.
  • the grooved area here extends downwards by an area lower 4 of reduced diameter, intended to facilitate the introduction of the sleeve M in the neck of the reservoir R.
  • the lower edge of zone 4 has a chamfer 4a facilitating the admission of compressed air into the area grooved 1.
  • Figures 2a, 2b, and 2c show the assembly system of the invention during the internal fitting phase of the sleeve M on the reservoir R.
  • the neck of the reservoir R has an internal wall which is smooth, at the less in part 3, which comes opposite the external face of the wall side of the sleeve M as shown in Figure 2b.
  • the fitting proceeds from a relative sliding of the part smooth 3 of the wall of the reservoir R first in radial clamping in contact with the grooved area 1, which leads in a first phase to a lateral closure of the groove 10, as shown in top view and in section in FIG. 2c.
  • the radial tightening is not peripheral by the very fact of the presence of the groove 10 but the mechanical strength of the pump P on the tank R is already partially insured.
  • the groove 10 is gradually closed, from bottom to top, but the duct vent thus formed always opens out to the outside partly high.
  • both the grooved zone 1 and the smooth zone 2 participate in the mechanical strength of the assembly since these two zones are radially tightened over their entire height with the smooth surface 3.
  • the smooth zone 2 is preferably delimited on the side opposite the grooved area 1, by an upper shoulder 5 carried externally by the sleeve M and forming a stop for a transverse face of the wall in sight, materialized here by the free edge r of the reservoir R.
  • the zones grooved 1 and smooth 2 are carried by the internal wall of the reservoir R, always with a view to an internal fitting of the sleeve M.
  • the smooth zone 2 is located below the grooved zone 1.
  • zones 1, 2 are intended to cooperate with a smooth part 3 formed on the external face of the side wall of the sleeve M.
  • the free edge r of the side wall of the tank R is chamfered and abuts, at the end of assembly, against the upper shoulder 5 carried here externally by the sleeve M as shown in the Figure 6b.
  • the grooved zone 1 and the adjacent smooth zone 2 are here worn. by the internal face of the side wall of the sleeve M.
  • This embodiment has a configuration symmetrical to that which is shown in Figures 1b, 2b and 3b, and assembly is carried out under the same conditions, with the difference, that the exhaust of the compressed air is from the top to the bottom of the grooved area 1.
  • the upper shoulder 5 is here carried internally by the sleeve M.
  • the wall side of the tank R has a lower shoulder 6 forming stop for the free edge of the side wall of the sleeve M.
  • the shoulder 6 preferably has a substantially equal width to the thickness of the side wall of the sleeve M at the level of the zone smooth 2 so as to achieve an external flush with the sleeve with the tank and thus obtain continuity of appearance.
  • the distance between the upper 5 and lower 6 shoulders then determines the respective heights of the sleeve M and the neck of the tank R.
  • the grooved area 1 and the adjacent smooth area 2 are carried by the external lateral wall of the neck of the reservoir R.
  • This embodiment has a configuration symmetrical to that which is shown in Figures 4b, 5b and 6b, and assembly is carried out under the same conditions with the difference that the exhaust of the compressed air is from the top to the bottom of the grooved area 1.
  • the free edge of the sleeve M has a specific air profile to optimize the air exhaust.
  • This profile consists of a chamfer 40 with a double slope 40a, 40c.
  • the two slopes 40a, 40c possibly have inclinations different and are separated by a straight part 40b, parallel to the wall side of tank R.
  • the reservoir may include a lower shoulder 6 which is flush.
  • the invention allows an assembly of the components according to two main modes.
  • the forced fitting is carried out at constant speed and continuously, in order to maintain, at least during exhaust a permanent balance of air pressures between the inside and outside of the tank R with a degassing flow by the grooved area 1.
  • the forced fitting is carried out discontinuously in two stages.
  • a forced press generates a air overpressure inside the tank R.
  • the intermediate fitting position obtained is maintained during a pause time to allow the escape of compressed air until a balance of air pressures is established between inside and outside of tank R.

Landscapes

  • Closures For Containers (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Transmission Of Braking Force In Braking Systems (AREA)
  • Fertilizing (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Reciprocating Pumps (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

An assembly system for sealing a miniature pump to a small container (R), e.g. of a liquid to be atomised, has the body of the pump made with a sleeve (M) which joins the container with an internal or external force fit. The lateral wall of the pump sleeve or container made with a grooved section (1) which acts as a vent and an adjoining smooth section (2). The two surface sections are designed to slide and engage for their whole height with an opposite smooth surface on the container or sleeve, so that the grooved zone is closed gradually on assembly until the two smooth zones meet. The diameter of the grooved zone is the same or not more than 5 per cent smaller than the diameter of the adjacent smooth zone, and the sleeve has a step at its upper end which acts as a stop for the upper edge of the container.

Description

La présente invention concerne un système d'assemblage étanche d'une pompe miniature sur un réservoir de faible contenance.The present invention relates to an assembly system tightness of a miniature pump on a small capacity tank.

Plus précisément, elle concerne l'assemblage étanche d'une pompe miniature dont le corps est supporté par un manchon, sur le col du récipient formant réservoir par emmanchement forcé interne ou externe.More specifically, it relates to the sealed assembly of a miniature pump whose body is supported by a sleeve, on the neck of the container forming a reservoir by internal or external forced fitting.

Les distributeurs d'échantillons de produits liquides tels que les vaporisateurs miniatures sont généralement assemblés après remplissage du réservoir.Distributors of samples of liquid products such as miniature sprays are usually assembled after filling of the tank.

La fermeture du réservoir, qui s'effectue par emmanchement étanche forcé du manchon supportant la pompe, peut provoquer une surpression d'air à l'intérieur dudit réservoir, en particulier lorsqu'il n'existe aucun moyen d'évacuation de l'air comprimé.The closing of the tank, which is done by fitting forced sealing of the sleeve supporting the pump, may cause overpressure of air inside said tank, in particular when there is no no means of evacuating the compressed air.

Cette surpression génère alors des jets brutaux et des aérosols de produits lors de la première ouverture de la pompe.This overpressure then generates brutal jets and aerosols of products when the pump is opened for the first time.

Une méthode connue pour éviter cette surpression consiste à ouvrir l'évent de la pompe par appui sur sa tête lors de son assemblage comme décrit dans le EP 408 421 (SOFAB). Cependant, lorsque le distributeur est livré avec un capot, il est souhaitable, pour des raisons économiques, de réaliser l'assemblage avec la pompe déjà munie du capot. Dans ces conditions, l'ouverture de l'évent n'est plus possible puisque la tête de la pompe n'est pas accessible.A known method to avoid this overpressure consists in open the pump vent by pressing on its head during assembly as described in EP 408 421 (SOFAB). However, when the dispenser comes with a cover, it is desirable for reasons economical, to assemble with the pump already equipped with cover. Under these conditions, the opening of the vent is no longer possible since the pump head is not accessible.

Une autre technique consiste à réaliser une rainure longitudinale sur la paroi latérale du manchon ou du réservoir, qui assure l'échappement de l'air comprimé et qui est obturée en partie haute par un épaulement transversal comme décrit dans le US 4 311 255 (MESHBERG).Another technique is to make a groove longitudinal on the side wall of the sleeve or tank, which ensures the exhaust of the compressed air and which is closed at the top by a transverse shoulder as described in US 4,311,255 (MESHBERG).

Cependant, cette solution technique n'est pas satisfaisante sur le plan de l'étanchéité finale de l'assemblage du fait que l'obturation de la rainure est obtenue par rapprochement puis contact entre parois de faibles surfaces.However, this technical solution is not satisfactory on the final sealing plan of the assembly because the obturation of the groove is obtained by approximation then contact between walls of small areas.

Par ailleurs, il est nécessaire d'assurer conjointement à l'échappement et à l'étanchéité, une bonne tenue mécanique de la pompe sur le réservoir. Or, cette tenue sera d'autant plus forte que la hauteur des portées en serrage radial, respectivement du manchon et du réservoir, sera plus grande.Furthermore, it is necessary to jointly provide exhaust and sealing, good mechanical strength of the pump on the tank. However, this outfit will be all the stronger as the height of the carried in radial clamping, respectively of the sleeve and of the reservoir, will be bigger.

EP-A-571 280 décrit une douille de support de corps de pompe destinée à être emmanchée dans la partie haute d'un réservoir. Une rainure 1c, formant évent, est pratiquée sur la paroi latérale interne du réservoir. L'agencement est tel que le serrage radial de la partie réalisant l'étanchéité ne peut s'exercer sur toute la hauteur de celle-ci.EP-A-571 280 describes a pump body support bushing intended to be fitted into the upper part of a tank. A groove 1c, forming a vent, is formed on the internal lateral wall of the tank. The arrangement is such that the radial tightening of the part making sealing cannot be exercised over the entire height thereof.

La présente invention a pour but de résoudre les problèmes techniques précédents de manière satisfaisante.The object of the present invention is to solve the problems previous techniques satisfactorily.

Ce but est atteint, conformément à l'invention, au moyen d'un système d'assemblage étanche d'une pompe miniature (P) dont le corps est supporté par un manchon (M) sur un réservoir (R) de faible contenance, par emmanchement forcé, interne ou externe,
   caractérisé en ce que la paroi latérale du manchon (M) ou du réservoir (R) comporte une zone rainurée (1) formant évent, délimitée longitudinalement par une zone lisse (2) adjacente ; lesdites zones étant destinées à coulisser en serrage radial sur toute leur hauteur avec une partie lisse (3) de la paroi en regard du réservoir (R) ou du manchon (M), dont la hauteur par rapport à celle des zones (1, 2) en regard est de façon à obturer progressivement ladite zone rainurée et à venir en contact étanche avec la zone lisse (2) en fin d'assemblage.This object is achieved, in accordance with the invention, by means of a sealed assembly system of a miniature pump (P), the body of which is supported by a sleeve (M) on a reservoir (R) of small capacity, by forced fitting, internal or external,
characterized in that the side wall of the sleeve (M) or of the reservoir (R) comprises a grooved zone (1) forming a vent, delimited longitudinally by an adjacent smooth zone (2); said zones being intended to slide in radial clamping over their entire height with a smooth part (3) of the wall opposite the reservoir (R) or the sleeve (M), the height of which relative to that of the zones (1, 2 ) facing is so as to gradually close said grooved area and to come into tight contact with the smooth area (2) at the end of assembly.

Selon une caractéristique avantageuse, la zone rainurée a un diamètre identique ou inférieur d'au plus 5% au diamètre de la zone lisse adjacente.According to an advantageous characteristic, the grooved zone has a diameter identical to or less than 5% less than the diameter of the smooth zone adjacent.

Selon une autre caractéristique, ledit manchon comporte un épaulement supérieur formant butée pour le bord libre du réservoir.According to another characteristic, said sleeve comprises a upper shoulder forming a stop for the free edge of the tank.

Selon un premier mode de réalisation, lesdites zones rainurée et lisse sont réalisées sur la paroi interne de réservoir, en vue d'un emmanchement interne du manchon.According to a first embodiment, said grooved areas and smooth are made on the inner wall of the tank, for a internal fitting of the sleeve.

Selon un second mode, lesdites zones rainurée et lisse sont réalisées sur la paroi externe du réservoir, en vue d'un emmanchement externe du manchon.According to a second mode, said grooved and smooth areas are made on the external wall of the tank, for a fitting outside of the sleeve.

Selon un troisième mode de réalisation, lesdites zones rainurée et lisse sont réalisées sur la paroi interne du manchon, en vue de son emmanchement externe.According to a third embodiment, said grooved areas and smooth are made on the inner wall of the sleeve, for its external fitting.

Selon un quatrième mode de réalisation, lesdites zones rainurée et lisse sont réalisées sur la paroi externe du manchon, en vue de son emmanchement interne. According to a fourth embodiment, said grooved areas and smooth are made on the outer wall of the sleeve, for its internal fitting.

Selon une caractéristique liée aux troisième et quatrième modes de réalisation, ladite zone rainurée est située sous ladite zone lisse et se prolonge vers le bas par une zone inférieure de diamètre réduit.According to a characteristic linked to the third and fourth modes embodiment, said grooved area is located under said smooth area and is extends downward through a lower area of reduced diameter.

Selon une caractéristique liée aux second et troisième modes de réalisation, la paroi latérale du réservoir comporte un épaulement inférieur formant butée pour le bord libre de la paroi latérale du manchon.According to a characteristic linked to the second and third modes of embodiment, the side wall of the tank has a lower shoulder forming a stop for the free edge of the side wall of the sleeve.

Selon encore d'autres caractéristiques, la zone rainurée se termine du côté opposé à la zone lisse par un bord chanfreiné et, le cas échéant, le bord libre de la paroi latérale du manchon et/ou du réservoir est chanfreiné.According to still other characteristics, the grooved zone is ends on the side opposite the smooth area with a chamfered edge and, if applicable if necessary, the free edge of the side wall of the sleeve and / or of the reservoir is chamfered.

Selon un mode de réalisation particulier, ladite zone rainurée comporte une seule rainure longitudinale.According to a particular embodiment, said grooved area has only one longitudinal groove.

Un autre projet de l'invention est un procédé d'assemblage étanche d'une pompe miniature (P), dont la corps est supporté par un manchon (M) sur un réservoir (R) de faible contenance, préalablement rempli et produit liquide,
   caractérisé en ce qu'on positionne le manchon (M) coaxialement sur le col du réservoir (R) et on effectue son emmanchement forcé, interne ou externe, de façon à obtenir d'abord un échappement de l'air comprimé par une zone rainurée (1) du manchon (M) ou du réservoir (R), puis une étanchéité finale par un serrage radial périphérique d'une zone lisse (2) et d'une partie lisse (3) des portées en regard du manchon (M) et du réservoir (R), ladite zone lisse du manchon (M) ou du réservoir (R) étant longitudinalement adjacente à la zone rainurée du manchon ou du réservoir, ladite partie lisse (3) de la paroi en regard du réservoir ou du manchon ayant une hanteur, par rapport à celle des zones en regard, propre à obturer progressivement ladite zone rainurée et à venir en contact avec la zone lisse en fin d'assemblage.Another project of the invention is a method of tight assembly of a miniature pump (P), the body of which is supported by a sleeve (M) on a reservoir (R) of small capacity, previously filled and liquid product,
characterized in that the sleeve (M) is positioned coaxially on the neck of the reservoir (R) and its forced fitting, internal or external, is carried out so as to first obtain an exhaust of the compressed air through a grooved zone (1) of the sleeve (M) or of the reservoir (R), then a final seal by peripheral radial tightening of a smooth zone (2) and of a smooth part (3) of the bearing surfaces facing the sleeve (M) and of the reservoir (R), said smooth zone of the sleeve (M) or of the reservoir (R) being longitudinally adjacent to the grooved zone of the sleeve or of the reservoir, said smooth part (3) of the wall facing the reservoir or of the sleeve having a haunting, relative to that of the facing zones, capable of gradually closing said grooved zone and coming into contact with the smooth zone at the end of assembly.

Selon une première variante de mise en oeuvre, l'emmanchement forcé est effectué à vitesse constante et de façon continue pour maintenir, au moins pendant l'échappement, un équilibre permanent des pressions d'air entre l'intérieur et l'extérieur du réservoir.According to a first variant of implementation, the fitting forced is performed at constant speed and continuously for maintain, at least during exhaust, a permanent balance of air pressures between the inside and outside of the tank.

Selon une autre variante, l'emmanchement forcé est effectué de façon discontinue, avec une première étape d'appui pendant laquelle on génère une surpression d'air à l'intérieur du réservoir puis un temps d'arrêt avec maintien dans la position d'emmanchement obtenue pour permettre l'échappement de l'air comprimé, jusqu'à l'établissement d'un équilibre des pressions d'air entre l'intérieur et l'extérieur du réservoir et montage est particulièrement simple et rapide puisqu'une seule opération d'assemblage est suffisante.According to another variant, the forced fitting is carried out discontinuously, with a first support step during which an air overpressure is generated inside the tank then a time stop with maintenance in the fitting position obtained for allow the escape of compressed air, until the establishment of a balance of air pressures between the inside and outside of the tank and assembly is particularly simple and quick since a single operation assembly is sufficient.

Le système d'assemblage de l'invention procède de la combinaison entre une zone rainurée, une zone lisse adjacente et une paroi lisse en regard destinée à coulisser relativement et en serrage radial au contact desdites zones.The assembly system of the invention proceeds from the combination of a grooved area, an adjacent smooth area and a smooth facing wall intended to slide relatively and in clamping radial in contact with said areas.

La paroi lisse étant en serrage radial tant avec la zone lisse qu'avec la zone rainurée, chacune de ces zones participe à la tenue mécanique de l'assemblage.The smooth wall being in radial clamping both with the smooth zone that with the grooved zone, each of these zones participates in the holding mechanical assembly.

Cette combinaison permet donc d'obtenir à la fois, un dégazage efficace et continu en cours d'emmanchement, une étanchéité parfaite en fin d'assemblage en raison des surfaces importantes des portées en serrage radial périphérique et une bonne tenue de la pompe sur le réservoir du fait de la grande hauteur des portées en serrage.This combination therefore makes it possible to obtain both a degassing efficient and continuous during fitting, perfect sealing at the end of assembly due to the large surfaces of the spans peripheral radial tightening and good holding of the pump on the tank due to the great height of the tightening spans.

L'obturation de la zone rainurée s'effectue progressivement par coulissement jusqu'à étanchéité complète, à mesure que la surface des portées en regard augmente.The grooved area is gradually closed by sliding until completely sealed, as the surface of the worn opposite increases.

La phase finale du coulissement amène une étanchéité renforcée par mise en contact de zones lisses parallèles sur une hauteur déterminée en fonction de la légère surpression admissible.The final sliding phase leads to a reinforced seal by contacting parallel smooth zones over a height determined according to the slight admissible overpressure.

Le coulissement relatif des portées en regard s'effectue très facilement compte tenu de la nature du matériau constitutif à comportement plastique.The relative sliding of the facing spans is very easily taking into account the nature of the constituent material to plastic behavior.

Toutefois, l'emmanchement forcé entraíne une réaction des pièces en serrage radial, ce qui se traduit notamment par une déformation élastique des zones en contact et plus précisément par un écrasement des parois internes et une dilatation des parois externes. Pour garantir une bonne tenue mécanique et une étanchéité finale satisfaisantes, il peut alors être judicieux de prévoir que le diamètre extérieur de la zone libre est légèrement supérieur (d'au plus 5%) à celui de la zone rainurée qui est plus facilement compressible.However, the forced fitting causes a reaction of the parts in radial clamping, which results in particular in a elastic deformation of the areas in contact and more precisely by a crushing of the internal walls and dilation of the external walls. To guarantee good mechanical strength and final tightness satisfactory, it may then be wise to provide that the diameter outside the free zone is slightly higher (at most 5%) than that of the grooved area which is more easily compressible.

Le système de l'invention s'applique aussi bien à un emmanchement interne qu'externe du manchon, ce qui offre de multiples possibilités quant aux modes de réalisation du distributeur.The system of the invention applies equally well to a internal fitting that external of the sleeve, which offers multiple possibilities as for the embodiments of the distributor.

L'invention sera mieux comprise à la lecture de la description qui va suivre, accompagnée des dessins sur lesquels :

  • les figures 1a et 1b représentent des vues en coupe verticale (de détail pour la figure 1b) d'un premier mode de réalisation de l'invention avant emmanchement ;
  • la figure 1c représente une vue de détail en coupe horizontale selon CC du mode de réalisation des figures 1a et 1b ;
  • les figures 2a, 2b et 2c sont des vues en coupe qui correspondent à celles des figures 1a, 1b, 1c pour le même mode de réalisation mais en cours d'emmanchement interne ;
  • les figures 3a, 3b et 3c sont des vues en coupe qui correspondent à celles des figures 1a, 1b et 1c toujours pour le même mode de réalisation mais en fin d'assemblage ;
  • les figures (4a, 4b, 4c), (5a, 5b, 5c) et (6a, 6b, 6c) représentent des vues en coupe (qui correspondent à celles des figures précédentes) d'un second mode de réalisation respectivement avant emmanchement, en cours d'emmanchement interne et en fin d'assemblage ;
  • les figures (7a, 7b, 7c), (8a, 8b, 8c) et (9a, 9b, 9c) représentent des vues en coupe (qui correspondent à celles des figures précédentes) d'un troisième mode de réalisation respectivement avant emmanchement, en cours d'emmanchement externe et en fin d'assemblage ;
  • les figures (10a, 10b, 10c), (11a, 11b, 11c) et (12a, 12b, 12c) représentent des vues en coupe (qui correspondent à celles des figures précédentes) d'un quatrième mode de réalisation respectivement avant emmanchement, en cours d'emmanchement externe et en fin d'assemblage.
The invention will be better understood on reading the description which follows, accompanied by the drawings in which:
  • Figures 1a and 1b show views in vertical section (detail for Figure 1b) of a first embodiment of the invention before fitting;
  • Figure 1c shows a detail view in horizontal section along CC of the embodiment of Figures 1a and 1b;
  • Figures 2a, 2b and 2c are sectional views which correspond to those of Figures 1a, 1b, 1c for the same embodiment but during internal fitting;
  • Figures 3a, 3b and 3c are sectional views which correspond to those of Figures 1a, 1b and 1c always for the same embodiment but at the end of assembly;
  • the figures (4a, 4b, 4c), (5a, 5b, 5c) and (6a, 6b, 6c) represent sectional views (which correspond to those of the preceding figures) of a second embodiment respectively before fitting, during internal fitting and at the end of assembly;
  • the figures (7a, 7b, 7c), (8a, 8b, 8c) and (9a, 9b, 9c) represent sectional views (which correspond to those of the preceding figures) of a third embodiment respectively before fitting, during external fitting and at the end of assembly;
  • the figures (10a, 10b, 10c), (11a, 11b, 11c) and (12a, 12b, 12c) represent sectional views (which correspond to those of the preceding figures) of a fourth embodiment respectively before fitting, during external fitting and at the end of assembly.

La figure 1a représente une vue en coupe verticale d'un distributeur miniature avant assemblage.Figure 1a shows a vertical sectional view of a miniature distributor before assembly.

Ce distributeur comprend une pompe P dont le corps est supporté par un manchon M et la tête T formant poussoir, est coiffée par un capot C reposant sur le manchon M.This distributor includes a pump P whose body is supported by a sleeve M and the head T forming a pusher, is capped by a cover C resting on the sleeve M.

Le manchon M est destiné à être emmanché en force, ici de façon interne, dans un réservoir R de faible contenance préalablement rempli d'un échantillon E de produit liquide.The sleeve M is intended to be force-fitted, here of internally, in a tank R of small capacity beforehand filled with a sample E of liquid product.

La vue de détail en coupe de la figure 1b représente un côté de la paroi latérale du manchon M. La face externe de cette paroi comporte une zone rainurée 1 pour l'échappement de l'air qui est comprimé dans le réservoir R, au-dessus de la surface libre du produit E, par la descente du manchon M. The detail view in section of FIG. 1b represents a side of the side wall of the sleeve M. The external face of this wall comprises a grooved zone 1 for the exhaust of the air which is compressed in the reservoir R, above the free surface of the product E, by the lowering of sleeve M.

Dans le mode de réalisation représenté sur les figures 1a, 1b, et 1c, la zone rainurée 1 n'est constituée que d'une seule rainure longitudinale 10. Dans un autre mode de réalisation, non représenté, la zone rainurée 1 peut être constituée d'une série de rainures longitudinales 10 parallèles entre elles, ménagées de façon périphérique sur la paroi latérale du manchon ou bien encore, selon un autre mode, sous forme d'une rainure hélicoïdale.In the embodiment shown in FIGS. 1a, 1b, and 1c, the grooved area 1 consists of only one groove longitudinal 10. In another embodiment, not shown, the grooved area 1 can consist of a series of grooves longitudinal 10 parallel to each other, arranged peripherally on the side wall of the sleeve or even, according to another mode, in the form of a helical groove.

La zone rainurée 1 est délimitée longitudinalement, et ici vers le haut, par une zone lisse 2 adjacente dont le diamètre extérieur est identique ou supérieur d'au plus 5% au diamètre de la zone rainurée 1.The grooved zone 1 is delimited longitudinally, and here towards the high, by an adjacent smooth zone 2 whose outside diameter is the same as or more than 5% greater than the diameter of the grooved area 1.

La zone rainurée se prolonge ici vers le bas par une zone inférieure 4 de diamètre réduit, destinée à faciliter l'introduction du manchon M dans le col du réservoir R.The grooved area here extends downwards by an area lower 4 of reduced diameter, intended to facilitate the introduction of the sleeve M in the neck of the reservoir R.

De préférence, le bord inférieur de la zone 4 possède un chanfrein 4a facilitant l'admission de l'air comprimé dans la zone rainurée 1.Preferably, the lower edge of zone 4 has a chamfer 4a facilitating the admission of compressed air into the area grooved 1.

Les figures 2a, 2b, et 2c représentent le système d'assemblage de l'invention lors de la phase d'emmanchement interne du manchon M sur le réservoir R.Figures 2a, 2b, and 2c show the assembly system of the invention during the internal fitting phase of the sleeve M on the reservoir R.

Le col du réservoir R présente une paroi interne qui est lisse, au moins dans la partie 3, qui vient en regard de la face externe de la paroi latérale du manchon M comme représenté sur la figure 2b.The neck of the reservoir R has an internal wall which is smooth, at the less in part 3, which comes opposite the external face of the wall side of the sleeve M as shown in Figure 2b.

L'emmanchement procède d'un coulissement relatif de la partie lisse 3 de la paroi du réservoir R d'abord en serrage radial au contact de la zone rainurée 1, ce qui conduit dans une première phase à une obturation latérale de la rainure 10, comme représenté en vue de dessus et en coupe sur la figure 2c.The fitting proceeds from a relative sliding of the part smooth 3 of the wall of the reservoir R first in radial clamping in contact with the grooved area 1, which leads in a first phase to a lateral closure of the groove 10, as shown in top view and in section in FIG. 2c.

Au cours de cette phase, le serrage radial n'est pas périphérique du fait même de la présence de la rainure 10 mais la tenue mécanique de la pompe P sur le réservoir R est déjà partiellement assurée. La rainure 10 est obturée progressivement, du bas vers le haut, mais le conduit d'évent ainsi formé débouche toujours librement à l'extérieur en partie haute.During this phase, the radial tightening is not peripheral by the very fact of the presence of the groove 10 but the mechanical strength of the pump P on the tank R is already partially insured. The groove 10 is gradually closed, from bottom to top, but the duct vent thus formed always opens out to the outside partly high.

Lors de l'emmanchement forcé, le coulissement continue et le bord supérieur r de la partie lisse 3 de la paroi du réservoir R atteint la limite supérieure de la zone rainurée 1. During the forced fitting, the sliding continues and the upper edge r of the smooth part 3 of the wall of the tank R reaches the upper limit of the grooved area 1.

Si le bord supérieur r du réservoir R est chanfreiné, comme représenté sur la figure 2b, alors l'évacuation de l'air comprimé peut encore être assurée.If the upper edge r of the tank R is chamfered, as shown in Figure 2b, then the discharge of compressed air can still be assured.

Dans le cas contraire, la rainure 10 est alors définitivement obturée.Otherwise, the groove 10 is then definitively closed.

La poursuite du coulissement relatif au-delà de cette position, amène les portées respectives de la partie lisse 3 de la paroi du réservoir R et de la zone lisse 1 du manchon M en serrage radial périphérique dans la partie haute, et garantit l'étanchéité parfaite et complète du réservoir R en fin d'assemblage comme représenté sur les figures 3a, 3b et 3c. La hauteur des portées en serrage radial périphérique peut être déterminée en fonction de la surpression admissible dans le réservoir R après obturation de la zone ajourée 1. Cette surpression est proportionnelle à la course relative effectuée par les zones lisses 2,3 des portées en contact au-delà de la position limite d'obturation de la zone rainurée 1.The continuation of the relative sliding beyond this position, brings the respective ranges of the smooth part 3 of the tank wall R and the smooth zone 1 of the sleeve M in peripheral radial tightening in the upper part, and guarantees the perfect and complete watertightness of the tank R at the end of assembly as shown in Figures 3a, 3b and 3c. The height of the spans in peripheral radial clamping can be determined according to the admissible overpressure in the tank R after closing the openwork area 1. This overpressure is proportional to the relative stroke performed by the smooth zones 2.3 of brought into contact beyond the limit position for closing the area grooved 1.

L'emmanchement forcé entraínant un écrasement des portées internes et une dilatation des portées externes, il est parfois judicieux d'augmenter légèrement le diamètre extérieur de la zone lisse 2 (par exemple de 3%) par rapport à celui de la zone rainurée 1 pour garantir à la fois la tenue mécanique de l'assemblage et l'étanchéité finale.Forced fitting resulting in crushing of the spans internal and an expansion of the external surfaces, it is sometimes judicious slightly increase the outside diameter of the smooth zone 2 (by example of 3%) compared to that of grooved area 1 to guarantee both the mechanical strength of the assembly and the final seal.

Par ailleurs, tant la zone rainurée 1 que la zone lisse 2 participent à la tenue mécanique de l'assemblage puisque ces deux zones sont en serrage radial sur toute leur hauteur avec la portée lisse 3.Furthermore, both the grooved zone 1 and the smooth zone 2 participate in the mechanical strength of the assembly since these two zones are radially tightened over their entire height with the smooth surface 3.

Le serrage de la zone rainurée n'étant pas périphérique, sa hauteur peut donc être augmentée, sans que cela ne génère de surpression, pour renforcer la rigidité de l'assemblage, à condition que l'allongement du parcours de l'air comprimé qui en résulte ne soit pas préjudiciable à l'échappement.Since the tightening of the grooved area is not peripheral, its height can therefore be increased, without generating overpressure, to reinforce the rigidity of the assembly, provided that the resulting extension of the compressed air path is not detrimental to the exhaust.

La zone lisse 2 est de préférence, délimitée, du côté opposé à la zone rainurée 1, par un épaulement supérieur 5 porté extérieurement par le manchon M et formant butée pour une face transversale de la paroi en regard, matérialisée ici par le bord libre r du réservoir R.The smooth zone 2 is preferably delimited on the side opposite the grooved area 1, by an upper shoulder 5 carried externally by the sleeve M and forming a stop for a transverse face of the wall in sight, materialized here by the free edge r of the reservoir R.

Dans le mode de réalisation des figures 4a, 4b et 4c, les zones rainurée 1 et lisse 2 sont portées par la paroi interne du réservoir R, toujours en vue d'un emmanchement interne du manchon M. Toutefois, ici la zone lisse 2 est située au-dessous de la zone rainurée 1.In the embodiment of FIGS. 4a, 4b and 4c, the zones grooved 1 and smooth 2 are carried by the internal wall of the reservoir R, always with a view to an internal fitting of the sleeve M. However, here the smooth zone 2 is located below the grooved zone 1.

Ces zones 1, 2 sont destinées à coopérer avec une partie lisse 3 ménagée sur la face externe de la paroi latérale du manchon M.These zones 1, 2 are intended to cooperate with a smooth part 3 formed on the external face of the side wall of the sleeve M.

Le coulissement s'effectue comme décrit en référence aux figures 2b et 3b mais avec une inversion du système.The sliding takes place as described with reference to Figures 2b and 3b but with an inversion of the system.

C'est ici la partie lisse 3 de la paroi du manchon qui par coulissement relatif obture progressivement avec serrage radial, la zone rainurée du haut vers le bas comme représenté sur la figure 5b puis assure l'étanchéité par serrage radial périphérique au contact de la zone lisse 2.Here is the smooth part 3 of the wall of the sleeve which by relative sliding gradually closes with radial tightening, the area grooved from top to bottom as shown in Figure 5b then provides sealing by peripheral radial tightening in contact with the area smooth 2.

Dans ce cas, l'étanchéité en fin d'assemblage est assurée en partie basse du manchon M.In this case, the seal at the end of assembly is ensured by lower part of sleeve M.

Le bord libre r de la paroi latérale du réservoir R est chanfreiné et vient en butée, en fin d'assemblage, contre l'épaulement supérieur 5 porté ici extérieurement par le manchon M comme représenté sur la figure 6b.The free edge r of the side wall of the tank R is chamfered and abuts, at the end of assembly, against the upper shoulder 5 carried here externally by the sleeve M as shown in the Figure 6b.

Le mode de réalisation représenté sur les figures 7a, 8a et 9a correspond à un emmanchement externe du manchon M sur le réservoir R.The embodiment shown in Figures 7a, 8a and 9a corresponds to an external fitting of the sleeve M on the tank R.

La zone rainurée 1 et la zone lisse adjacente 2 sont ici portées par la face interne de la paroi latérale du manchon M.The grooved zone 1 and the adjacent smooth zone 2 are here worn. by the internal face of the side wall of the sleeve M.

Ce mode de réalisation a une configuration symétrique de celle qui est représentée sur les figures 1 b, 2b et 3b, et l'assemblage s'effectue dans les mêmes conditions, à la différence près, que l'échappement de l'air comprimé se fait du haut vers le bas de la zone rainurée 1.This embodiment has a configuration symmetrical to that which is shown in Figures 1b, 2b and 3b, and assembly is carried out under the same conditions, with the difference, that the exhaust of the compressed air is from the top to the bottom of the grooved area 1.

L'épaulement supérieur 5 est ici porté intérieurement par le manchon M.The upper shoulder 5 is here carried internally by the sleeve M.

Selon une variante, représentée sur les figures 9a et 9b, la paroi latérale du réservoir R comporte un épaulement inférieur 6 formant butée pour le bord libre de la paroi latérale du manchon M.According to a variant, shown in Figures 9a and 9b, the wall side of the tank R has a lower shoulder 6 forming stop for the free edge of the side wall of the sleeve M.

L'épaulement 6 a, de préférence, une largeur sensiblement égale à l'épaisseur de la paroi latérale du manchon M au niveau de la zone lisse 2 de façon à réaliser un affleurement extérieur du manchon avec le réservoir et obtenir ainsi une continuité d'aspect. The shoulder 6 preferably has a substantially equal width to the thickness of the side wall of the sleeve M at the level of the zone smooth 2 so as to achieve an external flush with the sleeve with the tank and thus obtain continuity of appearance.

La distance séparant les épaulements supérieur 5 et inférieur 6 détermine alors les hauteurs respectives du manchon M et du col du réservoir R.The distance between the upper 5 and lower 6 shoulders then determines the respective heights of the sleeve M and the neck of the tank R.

Le mode de réalisation représenté sur les figures 10a, 11a et 12a correspond encore à un emmanchement externe du manchon M sur le réservoir R.The embodiment shown in Figures 10a, 11a and 12a still corresponds to an external fitting of the sleeve M on the tank R.

Mais ici, la zone rainurée 1 et la zone lisse adjacente 2 sont portées par la paroi latérale externe du col du réservoir R.But here, the grooved area 1 and the adjacent smooth area 2 are carried by the external lateral wall of the neck of the reservoir R.

Ce mode de réalisation a une configuration symétrique de celle qui est représentée sur les figures 4b, 5b et 6b, et l'assemblage s'effectue dans les mêmes conditions à la différence près que l'échappement de l'air comprimé se fait du haut vers le bas de la zone rainurée 1.This embodiment has a configuration symmetrical to that which is shown in Figures 4b, 5b and 6b, and assembly is carried out under the same conditions with the difference that the exhaust of the compressed air is from the top to the bottom of the grooved area 1.

Comme représenté sur les figures 11b, et 12b, le bord libre du manchon M a un profil aéraulique spécifique permettant d'optimiser l'échappement d'air.As shown in Figures 11b, and 12b, the free edge of the sleeve M has a specific air profile to optimize the air exhaust.

Ce profil consiste en un chanfrein 40 avec une double pente 40a, 40c.This profile consists of a chamfer 40 with a double slope 40a, 40c.

Les deux pentes 40a, 40c ont des inclinaisons éventuellement différentes et sont séparées par une partie droite 40b, parallèle à la paroi latérale du réservoir R.The two slopes 40a, 40c possibly have inclinations different and are separated by a straight part 40b, parallel to the wall side of tank R.

Le cas échéant, comme dans le mode de réalisation de la figure 9b, le réservoir peut comporter un épaulement inférieur 6 affleurant.If necessary, as in the embodiment of the figure 9b, the reservoir may include a lower shoulder 6 which is flush.

L'invention permet un assemblage des composants selon deux modes principaux.The invention allows an assembly of the components according to two main modes.

Dans les deux modes, on positionne d'abord le manchon M coaxialement sur le col du réservoir R comme représenté sur les figures 1a, 4a, 7a et 10a.In both modes, first place the sleeve M coaxially on the neck of the reservoir R as shown in the figures 1a, 4a, 7a and 10a.

Puis on effectue son emmanchement forcé, interne ou externe, en appuyant sur le capot C et/ou sous le réservoir R. Cet appui provoque, dans une première phase du coulissement, la compression de l'air interne et son échappement via la zone rainurée 1 de la paroi latérale du manchon M ou du réservoir R (comme représenté sur les figures 2a, 5a, 8a et 11a ou en détail sur les figures 2b, 5b, 8b, et 11b) et, dans une seconde phase l'étanchéité complète par serrage radial périphérique des zones lisses 2,3 des portées en regard respectivement du manchon M et du réservoir R. Then we carry out its forced fitting, internal or external, by pressing the cover C and / or under the tank R. This support causes, in a first phase of the sliding, the compression of the internal air and its exhaust via the grooved zone 1 of the wall side of the sleeve M or of the reservoir R (as shown in the Figures 2a, 5a, 8a and 11a or in detail in Figures 2b, 5b, 8b, and 11b) and, in a second phase, complete sealing by radial tightening smooth zones 2.3 of the bearing surfaces respectively sleeve M and reservoir R.

Selon le premier mode, l'emmanchement forcé est effectué à vitesse constante et de façon continue, en vue de maintenir, au moins pendant l'échappement un équilibre permanent des pressions d'air entre l'intérieur et l'extérieur du réservoir R avec un débit de dégazage par la zone rainurée 1.According to the first mode, the forced fitting is carried out at constant speed and continuously, in order to maintain, at least during exhaust a permanent balance of air pressures between the inside and outside of the tank R with a degassing flow by the grooved area 1.

Selon un second mode, l'emmanchement forcé est effectué de façon discontinue en deux étapes.According to a second mode, the forced fitting is carried out discontinuously in two stages.

Au cours de la première étape, on génère par appui forcé une surpression d'air à l'intérieur du réservoir R. En effet, les faibles dimensions du conduit d'échappement d'air délimité par la zone rainurée 1, d'une part, et la partie lisse 3 de la paroi en regard, d'autre part, n'autorisent pas un débit de fuite d'air suffisant pour compenser instantanément la surpression.During the first stage, a forced press generates a air overpressure inside the tank R. Indeed, the low dimensions of the air exhaust duct delimited by the area grooved 1, on the one hand, and the smooth part 3 of the facing wall, on the other hand, do not allow sufficient air leakage rate to compensate instantly overpressure.

La position intermédiaire d'emmanchement obtenue est maintenue pendant un temps de pause pour permettre l'échappement de l'air comprimé jusqu'à l'établissement d'un équilibre des pressions d'air entre l'intérieur et l'extérieur du réservoir R.The intermediate fitting position obtained is maintained during a pause time to allow the escape of compressed air until a balance of air pressures is established between inside and outside of tank R.

Puis, au cours d'une seconde étape, on poursuit l'emmanchement pour obtenir successivement l'obturation de la zone rainurée et l'étanchéité finale par serrage radial périphérique des portées en regard.Then, in a second step, we continue the fitting to successively obtain the obturation of the zone grooved and final sealing by peripheral radial tightening of the spans opposite.

Claims (15)

  1. An assembly system for providing sealed assembly between a miniature pump (P) whose body is supported by a sleeve (M), and a reservoir (R) of small capacity, by forced internal or external engagement,
       the system being characterised in that the side wall of the sleeve (M) or of the reservoir (R) includes a grooved zone (1) forming a vent which is longitudinally terminated by an adjacent smooth zone (2); said zones being designed to slide with radial clamping over their full height with a smooth portion (3) of the facing wall of the reservoir (R) or of the sleeve (M), which height is selected with respect to the height of the facing zones (1, 2) for the purpose of progressively closing said grooved zone and coming into sealing contact with the smooth zone (2) at the end of assembly.
  2. An assembly system according to claim 1, characterised in that the grooved zone (1) is of a diameter that is identical to or smaller by no more than 5% than the diameter of the adjacent smooth zone (2).
  3. An assembly system according to claim 1 or 2, characterised in that said sleeve (M) includes a top shoulder (5) constituting a stop for the free edge (r) of the reservoir (R).
  4. An assembly system according to one of the preceding claims, characterised in that said grooved zone (1) and smooth zone (2) are made on the inside wall of the reservoir (R), for internal engagement of the sleeve (M).
  5. An assembly system according to one of claims 1 to 3, characterised in that said grooved zone (1) and said smooth zone (2) are formed on the outside wall of the reservoir (R) for external engagement of the sleeve (M).
  6. An assembly system according to one of claims 1 to 3, characterised in that said grooved zone (1) and smooth zone (2) are made on the inside wall of the sleeve (M) for external engagement thereof.
  7. An assembly system according to one of claims 1 to 3, characterised in that said grooved zone (1) and said smooth zone (2) are formed in the outside wall of the sleeve (M) for internal engagement thereof.
  8. An assembly system according to claim 6 or 7, characterised in that said grooved zone is situated beneath said smooth zone (2) and extends downwards in the form of a bottom zone (4) of smaller diameter.
  9. An assembly system according to claim 5 or 6, characterised in that the side wall of the reservoir (R) has a bottom shoulder (6) forming a stop for the free edge of the side wall of the sleeve (M).
  10. An assembly system according to one of the preceding claims, characterised in that the grooved zone (1) is terminated remote from the smooth zone (2) by a chamfered edge.
  11. An assembly system according to one of the preceding claims, characterised it that the free edge of the side wall of the sleeve (M) and/or of the reservoir (R) is chamfered.
  12. An assembly system according to one of the preceding claims, characterised in that said grooved zone (1) includes a single longitudinal groove (10).
  13. A method of assembling a miniature pump (P) in sealed manner on a reservoir (R) of small capacity that has previously been filled with liquid, the body of the pump being supported by a sleeve (M),
       the method being characterised in that the sleeve (M) is positioned on the axis of the neck of the reservoir (R) and is engaged by force, internally or externally, so as initially to cause compressed air to escape via a grooved zone (1) of the sleeve (M) or of the reservoir (R), and then to achieve final sealing by peripheral radial clamping between a smooth zone (2) and a smooth portion (3) of facing bearing surfaces of the sleeve (M) and of the reservoir (R), said smooth zone (2) of the sleeve (M) or of the reservoir (R) being longitudinally adjacent to the grooved zone of the sleeve or of the reservoir, with said smooth portion (3) of the wall facing the reservoir or the sleeve being of a height relative to the heights of the facing zones that is capable of progressively closing said grooved zone and coming into contact with the smooth zone at the end of assembly.
  14. A method according to claim 13, characterised in that the forced engagement is performed at constant speed in continuous manner so as to maintain permanent equilibrium, at least during escape, between the air pressure inside and the air pressure outside the reservoir (R).
  15. A method according to claim 13, characterised in that the forced engagement is performed in discontinuous manner, with a first thrust step during which excess air pressure is generated inside the reservoir (R) followed by a pause during which the engagement position already obtained is maintained to allow the compressed air to escape, until equilibrium is established between the air pressure inside and the air pressure outside the reservoir (R), followed by a second step during which the grooved zone (1) is closed and then final sealing is obtained.
EP97401880A 1996-08-05 1997-08-05 System for sealingly mounting a miniature pump onto a little container Expired - Lifetime EP0823288B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9609866A FR2751897B1 (en) 1996-08-05 1996-08-05 SYSTEM FOR SEALED ASSEMBLY OF A MINIATURE PUMP ON A LOW CONTAINER
FR9609866 1996-08-05

Publications (2)

Publication Number Publication Date
EP0823288A1 EP0823288A1 (en) 1998-02-11
EP0823288B1 true EP0823288B1 (en) 2003-12-17

Family

ID=9494827

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97401880A Expired - Lifetime EP0823288B1 (en) 1996-08-05 1997-08-05 System for sealingly mounting a miniature pump onto a little container

Country Status (11)

Country Link
US (1) US6010039A (en)
EP (1) EP0823288B1 (en)
JP (1) JP3640509B2 (en)
AT (1) ATE256504T1 (en)
CA (1) CA2212488C (en)
CY (1) CY2432B1 (en)
DE (1) DE69726802T2 (en)
DK (1) DK0823288T3 (en)
ES (1) ES2213810T3 (en)
FR (1) FR2751897B1 (en)
PT (1) PT823288E (en)

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Publication number Priority date Publication date Assignee Title
FR2756547B1 (en) * 1996-11-29 1999-01-29 Valois METHOD DEVICE FOR ATTACHING A DOSING MECHANISM IN A CONTAINER CONTAINING PRODUCT TO BE DISTRIBUTED
FR2767793B1 (en) * 1997-09-02 1999-11-19 Valois Sa DISTRIBUTION DEVICE WITH FIXING RING WITH CONICAL SLEEVE
FR2792295B1 (en) * 1999-04-16 2001-06-22 Valois Sa FIXING MEMBER FOR A FLUID PRODUCT DISPENSER AND DISPENSER COMPRISING SUCH A MEMBER
DE10011717A1 (en) * 2000-03-10 2001-09-13 Crown Cork & Seal Tech Corp Valve element for a liquid spray unit comprises an essentially cylindrical body provided with coaxial inlet and outlet valves
US6273301B1 (en) * 2000-03-29 2001-08-14 Cheng-Yuan Su Perfume pen assembly structure
US6592010B2 (en) * 2001-03-22 2003-07-15 Valois S.A. Fluid dispenser
DE10130368A1 (en) * 2001-06-23 2003-01-16 Pfeiffer Erich Gmbh & Co Kg Dispenser for dispensing a fluid medium
FR2840890B1 (en) * 2002-06-14 2004-10-15 Valois Sa FIXING MEMBER AND FLUID PRODUCT DISPENSER COMPRISING SUCH A FIXING MEMBER
FR2845355B1 (en) * 2002-10-07 2005-09-09 Valois Sas FLUID PRODUCT DISPENSER
FR2845675B1 (en) 2002-10-10 2005-06-24 Valois Sas FIXING DEVICE FOR FIXING A DISTRIBUTION MEMBER ON A TANK OPENING AND DISPENSER COMPRISING SUCH A DISPENSING DEVICE
US20040069811A1 (en) * 2002-10-10 2004-04-15 Valois S.A.S. Fixing member for fixing a dispensing member to an opening of a reservoir, and a dispenser including such a fixing member
US7011236B2 (en) 2003-04-03 2006-03-14 Rexam Beauty And Closure Inc. Assembly for securing and sealing a dispenser including a decorative collar to a flanged container
BRPI0721212B1 (en) * 2007-02-08 2019-04-09 Yaowu Ding WATER PUMP WATER INtake PREVENTION MECHANISM
FR2956098B1 (en) * 2010-02-11 2012-03-30 Airlessystems FLUID PRODUCT DISPENSER.
JP6144099B2 (en) * 2013-04-25 2017-06-07 株式会社丸一 External air introduction mechanism of pump type spray container
US20160158776A1 (en) * 2014-12-08 2016-06-09 Eric Sternberg Spray bottle with storage area and methods thereof
FR3092095B1 (en) 2019-01-28 2021-08-27 Shiseido Int France Fluid product tank

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US4311255A (en) * 1979-10-30 1982-01-19 Philip Meshberg Hand held container and dispenser assembly
EP0345132B1 (en) * 1988-06-02 1993-09-22 Societe Technique De Pulverisation Step Precompression dosing pump with improved priming action
US4955511A (en) * 1988-09-23 1990-09-11 Blake William S Trigger actuated pump and method of making same
FR2649382B1 (en) * 1989-07-04 1991-10-31 Aerosols & Bouchage MINIATURE DISTRIBUTORS
US5242089A (en) * 1992-01-29 1993-09-07 Calmar Inc. Miniature pump sprayer
US5449094A (en) * 1992-05-18 1995-09-12 Sofab Dispenser with plunging sleeve
FR2706137B1 (en) * 1993-06-07 1995-08-18 Oreal Head for a product dispenser, in particular a pasty product, and dispenser equipped with this head.
FR2714892B1 (en) * 1994-01-07 1996-03-29 Sofab Device for packaging and dispensing a liquid product.
ES2128027T3 (en) * 1994-10-17 1999-05-01 Sar Spa SLEEVE FOR ATTACHING A MANUAL PUMP GROUP TO A GLASS BOTTLE.
FR2734246B1 (en) * 1995-05-19 1997-07-11 Teleplastics Ind MINIATURE DISTRIBUTOR

Also Published As

Publication number Publication date
FR2751897B1 (en) 1998-10-30
DE69726802D1 (en) 2004-01-29
ATE256504T1 (en) 2004-01-15
PT823288E (en) 2004-05-31
JPH10203545A (en) 1998-08-04
CY2432B1 (en) 2004-11-12
CA2212488A1 (en) 1998-02-05
ES2213810T3 (en) 2004-09-01
FR2751897A1 (en) 1998-02-06
DK0823288T3 (en) 2004-04-26
US6010039A (en) 2000-01-04
CA2212488C (en) 2006-12-19
DE69726802T2 (en) 2005-06-02
EP0823288A1 (en) 1998-02-11
JP3640509B2 (en) 2005-04-20

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