EP0857149A2 - Dispenser for liquid or pasty materials - Google Patents

Dispenser for liquid or pasty materials

Info

Publication number
EP0857149A2
EP0857149A2 EP96934958A EP96934958A EP0857149A2 EP 0857149 A2 EP0857149 A2 EP 0857149A2 EP 96934958 A EP96934958 A EP 96934958A EP 96934958 A EP96934958 A EP 96934958A EP 0857149 A2 EP0857149 A2 EP 0857149A2
Authority
EP
European Patent Office
Prior art keywords
piston
tank
end piece
internal
duct
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
EP96934958A
Other languages
German (de)
French (fr)
Other versions
EP0857149B1 (en
Inventor
Jean-Louis Bougamont
Pierre Dumont
Pierre Amiel
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
Application filed by S O F A B, Sofab SA filed Critical S O F A B
Publication of EP0857149A2 publication Critical patent/EP0857149A2/en
Application granted granted Critical
Publication of EP0857149B1 publication Critical patent/EP0857149B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/0005—Containers or packages provided with a piston or with a movable bottom or partition having approximately the same section as the container
    • B65D83/0044—Containers or packages provided with a piston or with a movable bottom or partition having approximately the same section as the container the piston having a dispensing opening formed in the piston

Definitions

  • the present invention relates to a dispenser for liquid or pasty products.
  • dispensers comprising in particular a product reservoir surmounted on the one hand, by a nozzle provided with an internal evacuation duct and equipped, on the other hand, with means for withdrawing the product provided with a valve 'exhaust.
  • the product is withdrawn from the reservoir by means of a pump having an intake valve which, with the exhaust valve, delimits a chamber inside the pump body.
  • This chamber is capable of being first placed under vacuum to suck product into the tank and then under pressure to expel said product outside.
  • the product must completely fill the volume of the reservoir to subsequently avoid the appearance of air bubbles and malfunction by defusing.
  • the aim of the present invention is to solve the above technical and economic problems by seeking a device in which the number of constituent parts is reduced and which is capable of ensuring both simple and leaktight packaging, as well as reliable product distribution. .
  • a dispenser of liquid or pasty products of the type comprising in particular a product reservoir surmounted, on the one hand, by a nozzle provided with an internal evacuation duct. and equipped, on the other hand, with means for withdrawing the product provided with an exhaust valve, characterized in that said withdrawal means comprise a piston housed in the tank and traversed by an axial duct connected to a nozzle tube, the lower end delimits with said conduit axial an inlet orifice and the upper end of which is integral with said end piece forming a pusher which bears directly or indirectly on the external face of the piston to put the tank under pressure.
  • the external face of said piston comprises a socket delimiting with the internal lateral wall of the reservoir a peripheral space in which the lower lateral part of the endpiece is engaged.
  • the upper edge of the reservoir is provided with a shoulder under which is engaged a peripheral flange formed on the lower lateral edge of the end piece.
  • said nozzle consists on the one hand of a dispensing head provided with said internal evacuation conduit communicating at its lower part with the nozzle tube and extending, on the other hand, towards the reservoir by a skirt lateral.
  • the reservoir is provided with an internal lateral jacket.
  • the dispenser prefferably has a removable cover intended to cover the end piece.
  • This cover is telescopically fitted on the upper part of the internal jacket by being flush with the external lateral wall of the tank. Its internal side wall is also provided with a longitudinal groove forming a vent.
  • said endpiece is movable axially and relative to the piston while being returned to the remote position by a spring bearing on the external face of the piston.
  • the spray tube is then formed of a hollow rod slidably engaged in the axial duct of the piston and the lower end of which projects inside the reservoir regardless of the position of the nozzle.
  • the lower end of the spray tube is closed off by a solid base of enlarged section intended to come into leaktight support when the end piece is brought back against the internal rim of the axial duct, thereby forming the exhaust valve. .
  • said inlet orifice opens laterally at the lower end of the spray tube, on either side of its central axis.
  • said axial duct ends at its outer end with a hemispherical cap pierced with a central ejection orifice with elastically deformable edges intended to be closed in a closed position by an axial finger integral with the nozzle and forming an exhaust valve.
  • the spray tube is then fitted onto the axial duct and bears by its lower edge on the external face of the piston.
  • the nozzle tube is fitted into the axial duct and is supported by a peripheral shoulder on the external face of the piston.
  • the internal evacuation pipe of the endpiece is provided with the exhaust valve which then consists of a rod carrying on the one hand at its external end a cup whose lateral flank forms a lip elastically deformable device and, on the other hand, at its internal end a fixing crosspiece in said evacuation duct.
  • the piston prefferably has a substantially bell-shaped cross section; with a peripheral lip sealingly pressed against the internal wall of the tank. If necessary, the axial duct of the piston projects towards the inside of the reservoir and the bottom of the reservoir has a profile complementary to that of the internal face of the piston to ensure complete evacuation of the product.
  • Another object of the invention is a process for packaging the product inside the previous dispenser, characterized in that the product reservoir is filled and, at the same time, the closure and sampling system is mounted by fixing the end piece on the piston with, if necessary, an intermediate spring, then introducing the assembly thus formed in the jacket until the flange of the end piece comes into abutment from the inside against the shoulder of the jacket, and by covering the end piece with the cover, then the obturation and withdrawal system is assembled on the tank by sliding the jacket in contact with the internal wall of the tank with radial tightening.
  • the dispenser of the invention makes it possible to ensure both perfectly sealed packaging and reliable ejection of the product with technically simple and therefore economical means.
  • this distributor does not present any risk of defusing since it is the tank which is itself pressurized.
  • the sample is taken at the request of the user and, continuously, without any dosage of the product.
  • the quantity of product delivered therefore depends only on the duration and the force of support on the end piece forming a pusher.
  • FIG. 2 shows a cross-sectional view of a second embodiment of the dispenser of the invention
  • FIG. 3 shows a cross-sectional view of a third embodiment of the dispenser of the invention
  • Figure 4 shows a detailed sectional view of the dispenser of Figure 3;
  • FIG. 5a, 5b and 5c show cross-sectional views of the dispenser of the invention during operation;
  • FIGS 6a to 6d show cross-sectional views of the components of the dispenser of the invention when packaging the product.
  • the dispenser shown in Figures la and lb comprises a reservoir 1 of product.
  • the reservoir 1 is surmounted by a nozzle 2 provided with an internal discharge conduit 2a.
  • the means for withdrawing the product from the reservoir 1 notably comprise a piston 3 housed inside the reservoir 1.
  • the piston 3 is crossed by an axial duct 30 connected to a nozzle tube 4 which, in this embodiment, is consisting of a hollow rod.
  • the piston 3 is axially movable in the tank 1 by pressing on the nozzle 2.
  • the lower end 4a of the tube 4 delimits, with the axial duct 30, an inlet orifice 40, while its upper end 4b is provided with an ejection orifice 41 and is integral with the end piece 2.
  • the lower end 4a of the spray tube 4 is closed by a solid base 42 whose cross section is wider than that of the axial duct 30.
  • the base 42 is intended to come into sealing contact when closing against the internal rim of the axial duct 30 thereby forming the exhaust valve.
  • the reservoir 1 is lined with an internal lateral jacket 10 in radial clamping.
  • the axial duct 30 projects towards the inside of the reservoir 1 and the bottom lb of said reservoir has a profile complementary to that of the internal face 3b of the piston 3 to ensure complete evacuation of the product.
  • the piston 3 preferably has a substantially bell-shaped section with a peripheral lip 32, folded towards the inside of the reservoir 1 and in sealed support against its internal wall or that of the jacket 10.
  • the end piece 2 therefore forms a manual pusher which is supported, here via a spring 5, on the external face 3a of the piston 3 to put the tank 1 under pressure.
  • the end piece 2 consists, on the one hand, of a dispensing head 20 provided with the internal evacuation duct 2a which communicates at its lower part with the ejection orifice 41 of the nozzle tube 4.
  • the head 20 is extended towards the reservoir by a side skirt 21, the lower edge of which is provided with a peripheral flange 22.
  • the dispenser further comprises a removable cover 6 intended to cover the end piece 2.
  • the cover 6 is telescopically fitted onto the upper part of the jacket 10 by being flush with the external lateral wall of the reservoir 1.
  • the internal lateral wall of this nozzle is provided with a longitudinal groove 9 forming a vent during the packaging of the product (see FIG. 6c).
  • the end piece 2 is here movable axially and relative to the piston 3, being returned to the upward position by the spring 5.
  • the external face 3a of the piston 3 comprises a sleeve 31 which delimits with the internal lateral wall the of the reservoir or of the jacket
  • the spring 5 is housed and wedged in the sleeve 31 by coaxially surrounding the nozzle tube 4.
  • the upper edge of the jacket 10 (or where appropriate of the reservoir 1) is provided with a shoulder 11 under which is held the peripheral flange 22 formed on the lateral lower edge of the end piece 2.
  • the flange 22 moves, during the compression of the spring 5, as shown in FIGS. 5a to 5c, in the peripheral space 12 while being guided by the respective walls of the sleeve 31 of the jacket 10 until possibly coming in stop down, against the edge of the external face 3a of the piston 3.
  • the nozzle tube 4 slides in the axial duct 30 to release the intake orifice 40 carried by its lower end 4a and opening laterally on the tube 4 on either side of the central axis.
  • the spring 5 reaches a compression level (depending on its stiffness)
  • the force is transmitted indirectly, via the spring 5, to the piston 3 which then moves downwards to compress the product.
  • the latter under the effect of pressure, then escapes through the inlet port 40, then through the nozzle tube 4 to the discharge duct 2a.
  • the tank 1 is then closed again and the product is isolated from the outside.
  • the respective heights of the skirt 21 and of the sleeve 31, as well as the stiffness of the spring 5 are determined relative to each other so that the upper edge of the bush 31 of piston 3 comes to bearing stop directly against the head 20 of the end piece 2 or, according to another variant (not shown), that the lower edge of the skirt 21 abuts directly against the external face 3a of the piston 3, before the spring 5 has not reached its compression level.
  • This configuration with direct support on the piston 3 limits the stroke of the nozzle 2 and leads to a more frank evacuation of the product.
  • the distributor shown in FIG. 2 corresponds to a second embodiment in which the end piece 2 is fixed relative to the piston 3.
  • the nozzle tube 4 which is here in one piece with the end piece 2, bears directly, by its lower edge 4a, on the external face 3a of the piston 3 and is connected by fitting on the axial duct 30.
  • the axial duct 30 extends outside the reservoir 1 beyond the external face 3a of the piston 3 and ends at its upper external end with a hemispherical cap 33.
  • the cap 33 is axially pierced with an orifice d central ejection
  • the tube 4 which is rigid, then ensures the axial retention of said conduit.
  • the ejection orifice 34 is intended to be closed in a closed position by an axial finger 23 integral with the end piece 2 and extending towards the piston 3 while being attached to the dispensing head 20.
  • the user By pressing on the head 20 of the nozzle 2, the user pushes the piston 3 which then compresses the product.
  • the latter fills the axial duct 30 inside the tube 4 before escaping under the effect of the pressure around the finger 23 towards the duct 2a by elastically deforming the contours of the ejection orifice 34.
  • the edges of the ejection orifice 34 close automatically and of sealed material around the finger 23.
  • the distributor shown in FIG. 3 corresponds to a third embodiment in which the end piece 2 is still fixed relative to the piston 3.
  • the nozzle tube 4 is in one piece with the end piece 2 being integral with the head distributor 20.
  • the tube 4 is connected to the axial duct 30 of the piston 3 by sealed fitting inside the duct 30 and is supported by a peripheral shoulder 43 on the external face 3a of the piston 3 at the rim of said duct 30.
  • the ejection orifice 41 of the tube 4 is located at the junction with the internal evacuation duct 2a of the nozzle 2.
  • the inlet 40 is located at the lower end 4a of the tube 4 and has a narrowed section relative to that of the axial duct 30 due to the interlocking.
  • the exhaust valve 7 is here an independent element arranged in an enlarged housing 27 formed in the internal evacuation duct 2a of the nozzle 2.
  • This valve consists, as shown in Figure 4, of a rod 70 carrying at its outer end a cup 71, whose lateral flank 71a, oriented towards the outlet of the conduit 2a, forms an elastically deformable peripheral lip in sealed support in a closed position (shown in phantom in the figure) against the wall of the housing 27.
  • the valve 7 is retained in the housing 27 by means of a peripheral cross 8 fixed around the internal end of the rod 70 and hung on the internal wall of said housing.
  • the product then comes to elastically deform the peripheral lip 71a to release a lateral outlet passage towards the outside as shown in solid lines in FIG. 4.
  • the lip 71a resumes elastically a sealing position inside the housing 27.
  • the dispenser of the invention is delivered in the form of two components intended to be assembled as shown in FIGS. 6a to 6d by the conditioner of the product P.
  • the first component consists of the reservoir 1 itself (FIG. 6a).
  • the second component consists of the obturation and withdrawal system comprising the end piece 2 capped, on the one hand, by the cover 6, fixed, on the other hand, on the piston 3 with, if necessary, the intermediate spring 5 , and also lined with the jacket 10.
  • the piston 3 secured to the endpiece is first introduced into the jacket 10 through its lower opening. During this operation, the lip 32 of the piston 3, oriented in the opposite direction to the direction of introduction, slides along the internal wall of the jacket 10 without being damaged until the flange 22 comes into abutment with the inside against shoulder 11.
  • the closure and sampling system is mounted on the said reservoir by direct pressing on the cover 6 (FIG. 6c).
  • the internal sleeve 10 then slides in the reservoir 1, in tight contact with its internal wall, until its lower edge 10a abuts against the bottom lb (FIG. 6d) or, according to a variant (not shown), on a shoulder provided for this purpose. Assembly is carried out either under vacuum or in the atmosphere and compressed air and then escapes through the valve exhaust, then through the vent 9 of the cover 6. In the latter case, it is advisable not to completely fill the tank 1.
  • the final tightening between the jacket 10 and the tank 1 must be sufficient to ensure a final assembly. components together but it must also be greater than the tightening of the cover 6 on the end piece 2 so that the removal of said cover does not cause the separation of the jacket 10 from the tank 1.

Abstract

A dispenser for liquid or pasty materials, particularly including a material container (1) and a head (2) thereon provided with an internal discharge channel (2a). The container further comprises material extraction means provided with an exhaust valve and a plunger (3) arranged in the container (1) and including an axial channel (30) that is connected to a spray tube (4) of which the lower end (4a) defines an intake port (40) together with said axial channel (30), while its upper end (4b) is secured to said actuating head (2), which directly or indirectly engages the outer surface (3a) of the plunger (3) in order to pressurise the container (1).

Description

DISTRIBUTEUR DE PRODUITS LIQUIDES OU PATEUXDISPENSER OF LIQUID OR PASTY PRODUCTS
La présente invention concerne un distributeur de produits liquides ou pâteux.The present invention relates to a dispenser for liquid or pasty products.
Il existe déjà des distributeurs comprenant notamment un réservoir de produit surmonté d'une part, d'un embout pourvu d'un conduit interne d'évacuation et équipé, d'autre part, de moyens de prélèvement du produit munis d'un clapet d'échappement.There are already dispensers comprising in particular a product reservoir surmounted on the one hand, by a nozzle provided with an internal evacuation duct and equipped, on the other hand, with means for withdrawing the product provided with a valve 'exhaust.
Généralement, le prélèvement du produit à partir du réservoir s'effectue au moyen d'une pompe possédant un clapet d'admission qui délimite, avec le clapet d'échappement, une chambre à l'intérieur du corps de pompe.Generally, the product is withdrawn from the reservoir by means of a pump having an intake valve which, with the exhaust valve, delimits a chamber inside the pump body.
Cette chambre est susceptible d'être mise d'abord en dépression pour aspirer du produit dans le réservoir puis sous pression pour expulser ledit produit à l'extérieur.This chamber is capable of being first placed under vacuum to suck product into the tank and then under pressure to expel said product outside.
Cependant, de tels distributeurs sont relativement complexes et donc fragiles dans la mesure où ils sont constitués d'un nombre important de pièces.However, such dispensers are relatively complex and therefore fragile in so far as they consist of a large number of parts.
Par suite, leur coût est relativement élevé, ce qui les rend peu intéressants pour une application à l'échantillonnage.Consequently, their cost is relatively high, which makes them of little interest for an application to sampling.
En outre, sous le corps de pompe, le produit doit remplir complètement le volume du réservoir pour éviter ultérieurement l'apparition de bulles d'air et un dysfonctionnement par désamorçage.In addition, under the pump body, the product must completely fill the volume of the reservoir to subsequently avoid the appearance of air bubbles and malfunction by defusing.
Dans ces conditions, l'assemblage des divers éléments constitutifs est une opération délicate.Under these conditions, the assembly of the various constituent elements is a delicate operation.
La présente invention a pour but de résoudre les problèmes techniques et économiques précédents en recherchant un dispositif dont le nombre de pièces constitutives soit réduit et qui soit capable d'assurer à la fois un conditionnement simple et étanche, ainsi qu'une distribution fiable du produit.The aim of the present invention is to solve the above technical and economic problems by seeking a device in which the number of constituent parts is reduced and which is capable of ensuring both simple and leaktight packaging, as well as reliable product distribution. .
Ce but est atteint, conformément à l'invention, au moyen d'un distributeur de produits liquides ou pâteux du type comprenant notamment un réservoir de produit surmonté, d'une part, d'un embout pourvu d'un conduit interne d'évacuation et équipé, d'autre part, de moyens de prélèvement du produit munis d'un clapet d'échappement, caractérisé en ce que lesdits moyens de prélèvement comprennent un piston logé dans le réservoir et traversé par un conduit axial raccordé à un tube gicleur dont l'extrémité inférieure délimite avec ledit conduit axial un orifice d'admission et dont l'extrémité supérieure est solidaire dudit embout formant poussoir qui prend appui directement ou indirectement sur la face externe du piston pour mettre le réservoir sous pression. Selon une caractéristique avantageuse, la face externe dudit piston comporte une douille délimitant avec la paroi latérale interne du réservoir un espace périphérique dans lequel est engagée la partie inférieure latérale de l'embout.This object is achieved, in accordance with the invention, by means of a dispenser of liquid or pasty products of the type comprising in particular a product reservoir surmounted, on the one hand, by a nozzle provided with an internal evacuation duct. and equipped, on the other hand, with means for withdrawing the product provided with an exhaust valve, characterized in that said withdrawal means comprise a piston housed in the tank and traversed by an axial duct connected to a nozzle tube, the lower end delimits with said conduit axial an inlet orifice and the upper end of which is integral with said end piece forming a pusher which bears directly or indirectly on the external face of the piston to put the tank under pressure. According to an advantageous characteristic, the external face of said piston comprises a socket delimiting with the internal lateral wall of the reservoir a peripheral space in which the lower lateral part of the endpiece is engaged.
Selon une autre caractéristique, le bord supérieur du réservoir est pourvu d'un épaulement sous lequel est engagée une bride périphérique ménagée sur le bord inférieur latéral de l'embout.According to another characteristic, the upper edge of the reservoir is provided with a shoulder under which is engaged a peripheral flange formed on the lower lateral edge of the end piece.
Selon encore une autre caractéristique, ledit embout est constitué d'une part d'une tête distributrice pourvue dudit conduit interne d'évacuation communiquant à sa partie inférieure avec le tube gicleur et se prolongeant, d'autre part, vers le réservoir par une jupe latérale.According to yet another characteristic, said nozzle consists on the one hand of a dispensing head provided with said internal evacuation conduit communicating at its lower part with the nozzle tube and extending, on the other hand, towards the reservoir by a skirt lateral.
De préférence, le réservoir est pourvu d'une chemise latérale interne.Preferably, the reservoir is provided with an internal lateral jacket.
En outre, il est prévu que le distributeur comporte un capot amovible destiné à coiffer l'embout. Ce capot est emboîté de façon télescopique sur la partie supérieure de la chemise interne en affleurant la paroi latérale externe du réservoir. Sa paroi latérale interne est en outre pourvue d'une rainure longitudinale formant évent.In addition, provision is made for the dispenser to have a removable cover intended to cover the end piece. This cover is telescopically fitted on the upper part of the internal jacket by being flush with the external lateral wall of the tank. Its internal side wall is also provided with a longitudinal groove forming a vent.
Selon un premier mode de réalisation, ledit embout est mobile axialement et relativement au piston en étant rappelé en position d'éloignement par un ressort prenant appui sur la face externe du piston.According to a first embodiment, said endpiece is movable axially and relative to the piston while being returned to the remote position by a spring bearing on the external face of the piston.
Le tube gicleur est alors formé d'une tige creuse engagée de manière coulissante dans le conduit axial du piston et dont l'extrémité inférieure fait saillie à l'intérieur du réservoir quelle que soit la position de l'embout. Dans ce mode de réalisation, l'extrémité inférieure du tube gicleur est obturée par une embase pleine de section élargie destinée à venir en appui étanche lors du rappel de l'embout contre le rebord interne du conduit axial en formant ainsi le clapet d'échappement.The spray tube is then formed of a hollow rod slidably engaged in the axial duct of the piston and the lower end of which projects inside the reservoir regardless of the position of the nozzle. In this embodiment, the lower end of the spray tube is closed off by a solid base of enlarged section intended to come into leaktight support when the end piece is brought back against the internal rim of the axial duct, thereby forming the exhaust valve. .
De plus, ledit orifice d'admission débouche latéralement à l'extrémité inférieure du tube gicleur, de part et d'autre de son axe central. Selon un second mode de réalisation, ledit conduit axial se termine à son extrémité externe par une calotte hémisphérique percée d'un orifice d'éjection central à bords élastiquement deformables destiné à être obturé dans une position de fermeture par un doigt axial solidaire de l'embout et formant un clapet d'échappement.In addition, said inlet orifice opens laterally at the lower end of the spray tube, on either side of its central axis. According to a second embodiment, said axial duct ends at its outer end with a hemispherical cap pierced with a central ejection orifice with elastically deformable edges intended to be closed in a closed position by an axial finger integral with the nozzle and forming an exhaust valve.
Le tube gicleur est alors emmanché sur le conduit axial et prend appui par son bord inférieur sur la face externe du piston.The spray tube is then fitted onto the axial duct and bears by its lower edge on the external face of the piston.
Selon un autre mode de réalisation, le tube gicleur est emboîté dans le conduit axial et prend appui par un épaulement périphérique sur la face externe du piston.According to another embodiment, the nozzle tube is fitted into the axial duct and is supported by a peripheral shoulder on the external face of the piston.
Dans ce dernier mode de réalisation, le conduit interne d'évacuation de l'embout est muni du clapet d'échappement qui est alors constitué d'une tige portant d'une part à son extrémité externe une coupelle dont le flanc latéral forme une lèvre périphérique élastiquement déformable et, d'autre part, à son extrémité interne un croisillon de fixation dans ledit conduit d'évacuation.In this latter embodiment, the internal evacuation pipe of the endpiece is provided with the exhaust valve which then consists of a rod carrying on the one hand at its external end a cup whose lateral flank forms a lip elastically deformable device and, on the other hand, at its internal end a fixing crosspiece in said evacuation duct.
Dans tous les modes de réalisation envisagés, il est prévu que le piston ait une section transversale sensiblement en cloche ; avec une lèvre périphérique en appui étanche contre la paroi interne du réservoir. Le cas échéant, le conduit axial du piston fait saillie vers l'intérieur du réservoir et le fond du réservoir a un profil complémentaire de celui de la face interne du piston pour assurer l'évacuation complète du produit.In all the embodiments envisaged, provision is made for the piston to have a substantially bell-shaped cross section; with a peripheral lip sealingly pressed against the internal wall of the tank. If necessary, the axial duct of the piston projects towards the inside of the reservoir and the bottom of the reservoir has a profile complementary to that of the internal face of the piston to ensure complete evacuation of the product.
Un autre objet de l'invention est un procédé de conditionnement du produit à l'intérieur du distributeur précédent, caractérisé en ce qu'on remplit le réservoir de produit et, parallèlement, on monte le système d'obturation et de prélèvement en fixant l'embout sur le piston avec, le cas échéant, un ressort intermédiaire, en introduisant ensuite l'ensemble ainsi formé dans la chemise jusqu'à ce que la bride de l'embout vienne en butée par l'intérieur contre l'épaulement de la chemise, et en coiffant l'embout avec le capot, puis on assemble le système d'obturation et de prélèvement sur le réservoir en faisant coulisser la chemise au contact de la paroi interne du réservoir avec serrage radial.Another object of the invention is a process for packaging the product inside the previous dispenser, characterized in that the product reservoir is filled and, at the same time, the closure and sampling system is mounted by fixing the end piece on the piston with, if necessary, an intermediate spring, then introducing the assembly thus formed in the jacket until the flange of the end piece comes into abutment from the inside against the shoulder of the jacket, and by covering the end piece with the cover, then the obturation and withdrawal system is assembled on the tank by sliding the jacket in contact with the internal wall of the tank with radial tightening.
Le distributeur de l'invention permet d'assurer à la fois un conditionnement parfaitement étanche et une éjection fiable du produit avec des moyens techniquement simples et donc économiques. En outre, ce distributeur ne présente aucun risque de désamorçage puisque c'est le réservoir qui est lui-même mis sous pression. Le prélèvement est effectué à la demande de l'utilisateur et, de façon continue, sans qu'il y ait un quelconque dosage du produit. La quantité de produit délivrée ne dépend donc que de la durée et de la force d'appui sur l'embout formant poussoir.The dispenser of the invention makes it possible to ensure both perfectly sealed packaging and reliable ejection of the product with technically simple and therefore economical means. In addition, this distributor does not present any risk of defusing since it is the tank which is itself pressurized. The sample is taken at the request of the user and, continuously, without any dosage of the product. The quantity of product delivered therefore depends only on the duration and the force of support on the end piece forming a pusher.
Son aspect esthétique compact le rend très attractif et bien adapté à une utilisation pour le conditionnement d'échantillons de produits cosmétiques ou pharmaceutiques. La présence d'un chemisage à l'intérieur du réservoir permet en outre un montage et un remplissage aisés par le conditionneur.Its compact aesthetic appearance makes it very attractive and well suited for use in the packaging of samples of cosmetic or pharmaceutical products. The presence of a liner inside the tank also allows easy mounting and filling by the conditioner.
L'invention sera mieux comprise à la lecture de la description qui va suivre, accompagnée des dessins sur lesquels :The invention will be better understood on reading the description which follows, accompanied by the drawings in which:
- les figures la et lb représentent des vues en coupe transversale de deux variantes d'un premier mode de réalisation du distributeur de l'invention ;- Figures la and lb show cross-sectional views of two variants of a first embodiment of the dispenser of the invention;
- la figure 2 représente une vue en coupe transversale d'un second mode de réalisation du distributeur de l'invention ;- Figure 2 shows a cross-sectional view of a second embodiment of the dispenser of the invention;
- la figure 3 représente une vue en coupe transversale d'un troisième mode de réalisation du distributeur de l'invention ;- Figure 3 shows a cross-sectional view of a third embodiment of the dispenser of the invention;
- la figure 4 représente une vue de détail en coupe du distributeur de la figure 3 ;- Figure 4 shows a detailed sectional view of the dispenser of Figure 3;
- les figures 5a, 5b et 5c représentent des vues en coupe transversale du distributeur de l'invention en cours de fonctionnement ; - les figures 6a à 6d représentent des vues en coupe transversale des éléments constitutifs du distributeur de l'invention lors du conditionnement du produit.- Figures 5a, 5b and 5c show cross-sectional views of the dispenser of the invention during operation; - Figures 6a to 6d show cross-sectional views of the components of the dispenser of the invention when packaging the product.
Le distributeur représenté sur les figures la et lb comprend un réservoir 1 de produit. Le réservoir 1 est surmonté d'un embout 2 pourvu d'un conduit interne d'évacuation 2a.The dispenser shown in Figures la and lb comprises a reservoir 1 of product. The reservoir 1 is surmounted by a nozzle 2 provided with an internal discharge conduit 2a.
Les moyens de prélèvement du produit à partir du réservoir 1 comprennent notamment un piston 3 logé à l'intérieur du réservoir 1. Le piston 3 est traversé par un conduit axial 30 raccordé à un tube gicleur 4 qui, dans ce mode de réalisation, est constitué d'une tige creuse. Le piston 3 est mobile axialement dans le réservoir 1 par appui sur l'embout 2. L'extrémité inférieure 4a du tube 4 délimite, avec le conduit axial 30, un orifice d'admission 40, tandis que son extrémité supérieure 4b est pourvue d'un orifice d'éjection 41 et est solidaire de l'embout 2. L'extrémité inférieure 4a du tube gicleur 4 est obturée par une embase pleine 42 dont la section est plus large que celle du conduit axial 30. L'embase 42 est destinée à venir en appui étanche, lors de la fermeture contre le rebord interne du conduit axial 30 en formant ainsi le clapet d'échappement.The means for withdrawing the product from the reservoir 1 notably comprise a piston 3 housed inside the reservoir 1. The piston 3 is crossed by an axial duct 30 connected to a nozzle tube 4 which, in this embodiment, is consisting of a hollow rod. The piston 3 is axially movable in the tank 1 by pressing on the nozzle 2. The lower end 4a of the tube 4 delimits, with the axial duct 30, an inlet orifice 40, while its upper end 4b is provided with an ejection orifice 41 and is integral with the end piece 2. The lower end 4a of the spray tube 4 is closed by a solid base 42 whose cross section is wider than that of the axial duct 30. The base 42 is intended to come into sealing contact when closing against the internal rim of the axial duct 30 thereby forming the exhaust valve.
Le réservoir 1 est garni d'une chemise latérale interne 10 en serrage radial. Le conduit axial 30 fait saillie vers l'intérieur du réservoir 1 et le fond lb dudit réservoir a un profil complémentaire de celui de la face interne 3b du piston 3 pour assurer une évacuation complète du produit. Le piston 3 a de préférence une section sensiblement en cloche avec une lèvre périphérique 32, repliée vers l'intérieur du réservoir 1 et en appui étanche contre sa paroi interne ou celle de la chemise 10.The reservoir 1 is lined with an internal lateral jacket 10 in radial clamping. The axial duct 30 projects towards the inside of the reservoir 1 and the bottom lb of said reservoir has a profile complementary to that of the internal face 3b of the piston 3 to ensure complete evacuation of the product. The piston 3 preferably has a substantially bell-shaped section with a peripheral lip 32, folded towards the inside of the reservoir 1 and in sealed support against its internal wall or that of the jacket 10.
Par appui sur l'embout 2, le piston 3 coulisse dans le réservoir 1 de façon continue et à vitesse uniforme. Ce déplacement s'accompagne du raclage de la paroi interne du réservoir 1 ou de la chemise 10 par la lèvre 32. L'embout 2 forme donc un poussoir manuel qui prend appui, ici via un ressort 5, sur la face externe 3a du piston 3 pour mettre le réservoir 1 sous pression. L'embout 2 est constitué, d'une part, d'une tête distributrice 20 pourvue du conduit interne d'évacuation 2a qui communique à sa partie inférieure avec l'orifice d'éjection 41 du tube gicleur 4.By pressing on the nozzle 2, the piston 3 slides in the reservoir 1 continuously and at uniform speed. This displacement is accompanied by the scraping of the internal wall of the reservoir 1 or of the jacket 10 by the lip 32. The end piece 2 therefore forms a manual pusher which is supported, here via a spring 5, on the external face 3a of the piston 3 to put the tank 1 under pressure. The end piece 2 consists, on the one hand, of a dispensing head 20 provided with the internal evacuation duct 2a which communicates at its lower part with the ejection orifice 41 of the nozzle tube 4.
La tête 20 se prolonge vers le réservoir par une jupe latérale 21 dont le bord inférieur est muni d'une bride périphérique 22.The head 20 is extended towards the reservoir by a side skirt 21, the lower edge of which is provided with a peripheral flange 22.
Le distributeur comporte, en outre, un capot 6 amovible destiné à coiffer l'embout 2. Le capot 6 est emboîté de façon télescopique sur la partie supérieure de la chemise 10 en affleurant la paroi latérale externe du réservoir 1. La paroi latérale interne de cet embout est pourvue d'une rainure longitudinale 9 formant évent lors du conditionnement du produit (voir figure 6c). L'embout 2 est ici mobile axialement et relativement au piston 3 en étant rappelé en position d'éloignement, vers le haut, par le ressort 5. La face externe 3a du piston 3 comporte une douille 31 qui délimite avec la paroi latérale interne la du réservoir ou de la chemiseThe dispenser further comprises a removable cover 6 intended to cover the end piece 2. The cover 6 is telescopically fitted onto the upper part of the jacket 10 by being flush with the external lateral wall of the reservoir 1. The internal lateral wall of this nozzle is provided with a longitudinal groove 9 forming a vent during the packaging of the product (see FIG. 6c). The end piece 2 is here movable axially and relative to the piston 3, being returned to the upward position by the spring 5. The external face 3a of the piston 3 comprises a sleeve 31 which delimits with the internal lateral wall the of the reservoir or of the jacket
10 un espace périphérique 12 dans lequel est engagée la partie inférieure latérale de l'embout 2 et en particulier, le bord inférieur de la jupe 21.10 a peripheral space 12 in which is engaged the lower lateral part of the end piece 2 and in particular, the lower edge of the skirt 21.
Dans ce mode de réalisation particulier, le ressort 5 est logé et calé dans la douille 31 en entourant coaxialement le tube gicleur 4.In this particular embodiment, the spring 5 is housed and wedged in the sleeve 31 by coaxially surrounding the nozzle tube 4.
Le bord supérieur de la chemise 10 (ou le cas échéant du réservoir 1) est pourvu d'un épaulement 11 sous lequel est retenue la bride périphérique 22 ménagée sur le bord inférieur latéral de l'embout 2.The upper edge of the jacket 10 (or where appropriate of the reservoir 1) is provided with a shoulder 11 under which is held the peripheral flange 22 formed on the lateral lower edge of the end piece 2.
La bride 22 se déplace, lors de la compression du ressort 5, comme représenté sur les figures 5a à 5c, dans l'espace périphérique 12 en étant guidée par les parois respectives de la douille 31 de la chemise 10 jusqu'à venir éventuellement en butée vers le bas, contre le bord de la face externe 3a du piston 3.The flange 22 moves, during the compression of the spring 5, as shown in FIGS. 5a to 5c, in the peripheral space 12 while being guided by the respective walls of the sleeve 31 of the jacket 10 until possibly coming in stop down, against the edge of the external face 3a of the piston 3.
Lors de cette même compression, le tube gicleur 4 coulisse dans le conduit axial 30 pour libérer l'orifice d'admission 40 porté par son extrémité inférieure 4a et débouchant latéralement sur le tube 4 de part et d'autre de l'axe central. Lorsque le ressort 5 atteint un palier de compression (en fonction de sa raideur), si l'appui manuel se poursuit, l'effort est transmis indirectement, via le ressort 5, au piston 3 qui se déplace alors vers le bas pour comprimer le produit. Ce dernier, sous l'effet de la pression, s'échappe alors par l'orifice d'admission 40, puis par le tube gicleur 4 jusqu'au conduit d'évacuation 2a. Lorsque l'emboutDuring this same compression, the nozzle tube 4 slides in the axial duct 30 to release the intake orifice 40 carried by its lower end 4a and opening laterally on the tube 4 on either side of the central axis. When the spring 5 reaches a compression level (depending on its stiffness), if the manual support continues, the force is transmitted indirectly, via the spring 5, to the piston 3 which then moves downwards to compress the product. The latter, under the effect of pressure, then escapes through the inlet port 40, then through the nozzle tube 4 to the discharge duct 2a. When the tip
2 est relâché, le ressort 5 le rappelle en position haute en entraînant la remontée du tube gicleur 4 et l'appui étanche de l'embase 42 contre le bord inférieur interne du conduit axial 30. Cette configuration, avec appui indirect sur le piston 3, permet d'obtenir une évacuation contrôlée du produit.2 is released, the spring 5 recalls it in the high position, causing the nozzle tube 4 to rise and the sealed support of the base 42 against the internal lower edge of the axial duct 30. This configuration, with indirect support on the piston 3 , allows to obtain a controlled evacuation of the product.
Le réservoir 1 est alors à nouveau fermé et le produit est isolé de l'extérieur.The tank 1 is then closed again and the product is isolated from the outside.
Selon une variante représentée sur la figure lb, les hauteurs respectives de la jupe 21 et de la douille 31, ainsi que la raideur du ressort 5 sont déterminées l'une par rapport à l'autre de façon à ce que le bord supérieur de la douille 31 du piston 3 vienne en butée d'appui directement contre la tête 20 de l'embout 2 ou bien, selon une autre variante (non représentée), que le bord inférieur de la jupe 21 vienne en butée d'appui directement contre la face externe 3a du piston 3, avant que le ressort 5 n'ait atteint son palier de compression. Cette configuration avec appui direct sur le piston 3 limite la course de l'embout 2 et conduit à une évacuation plus franche du produit.According to a variant shown in FIG. 1b, the respective heights of the skirt 21 and of the sleeve 31, as well as the stiffness of the spring 5 are determined relative to each other so that the upper edge of the bush 31 of piston 3 comes to bearing stop directly against the head 20 of the end piece 2 or, according to another variant (not shown), that the lower edge of the skirt 21 abuts directly against the external face 3a of the piston 3, before the spring 5 has not reached its compression level. This configuration with direct support on the piston 3 limits the stroke of the nozzle 2 and leads to a more frank evacuation of the product.
L'extrémité inférieure du tube gicleur 4, matérialisée par l'embase 42, fait toujours saillie à l'intérieur du réservoir 1, quelles que soient les positions relatives de l'embout 2 et du ressort 5. II est possible de réaliser le réservoir 1 et sa chemise 10 un matériau transparent de façon à pouvoir observer en permanence le niveau du produit restant. L'embout 2 s'enfonce sans possibilité de retour à sa position initiale dans le réservoir 1 au cours des distributions successives de produit. II est alors possible de graduer la jupe 21 de telle sorte que le bord supérieur de la chemise 10 ou du réservoir indique alors à chaque instant, sur cette graduation, le volume restant dans le distributeur et correspondant à un enfoncement donné de l'embout 2 dans le réservoir 1. Le distributeur représenté sur la figure 2 correspond à un second mode de réalisation dans lequel l'embout 2 est fixe par rapport au piston 3.The lower end of the nozzle tube 4, materialized by the base 42, always projects inside the tank 1, whatever the relative positions of the end piece 2 and the spring 5. It is possible to make the tank 1 and its jacket 10 a transparent material so as to be able to constantly observe the level of the remaining product. The nozzle 2 sinks without the possibility of returning to its initial position in the reservoir 1 during successive product distributions. It is then possible to scale the skirt 21 so that the upper edge of the jacket 10 or of the reservoir then indicates at each instant, on this scale, the volume remaining in the dispenser and corresponding to a given depression of the nozzle 2 in the reservoir 1. The distributor shown in FIG. 2 corresponds to a second embodiment in which the end piece 2 is fixed relative to the piston 3.
Le tube gicleur 4, qui est ici d'une seule pièce avec l'embout 2, prend directement appui, par son bord inférieur 4a, sur la face externe 3a du piston 3 et est raccordé par emmanchement sur le conduit axial 30.The nozzle tube 4, which is here in one piece with the end piece 2, bears directly, by its lower edge 4a, on the external face 3a of the piston 3 and is connected by fitting on the axial duct 30.
Le conduit axial 30 s'étend à l'extérieur du réservoir 1 au-delà de la face externe 3a du piston 3 et se termine à son extrémité externe supérieure par une calotte hémisphérique 33. La calotte 33 est percée axialement d'un orifice d'éjection centralThe axial duct 30 extends outside the reservoir 1 beyond the external face 3a of the piston 3 and ends at its upper external end with a hemispherical cap 33. The cap 33 is axially pierced with an orifice d central ejection
34, à bords élastiquement deformables.34, with elastically deformable edges.
Dans le cas où la calotte 33, et éventuellement une partie du conduit 30 sont réalisées intégralement avec une matière souple élastiquement déformable, le tube 4, qui est rigide, permet alors d'assurer le maintien axial dudit conduit. L'orifice d'éjection 34 est destiné à être obturé dans une position de fermeture par un doigt axial 23 solidaire de l'embout 2 et s'étendant vers le piston 3 en étant rattaché à la tête distributrice 20.In the case where the cap 33, and possibly a part of the conduit 30 are made integrally with a resiliently deformable flexible material, the tube 4, which is rigid, then ensures the axial retention of said conduit. The ejection orifice 34 is intended to be closed in a closed position by an axial finger 23 integral with the end piece 2 and extending towards the piston 3 while being attached to the dispensing head 20.
La coopération entre la calotte 33 avec son orifice d'éjection 34 et le doigt axial 23 forme le clapet d'échappement du distributeur.The cooperation between the cap 33 with its ejection orifice 34 and the axial finger 23 forms the exhaust valve of the distributor.
Par appui sur la tête 20 de l'embout 2, l'utilisateur enfonce le piston 3 qui comprime alors le produit. Ce dernier remplit le conduit axial 30 à l'intérieur du tube 4 avant de s'échapper sous l'effet de la pression autour du doigt 23 vers le conduit 2a en déformant élastiquement les contours de l'orifice d'éjection 34. Lorsque l'appui cesse, les bords de l'orifice d'éjection 34 se referment automatiquement et de matière étanche autour du doigt 23.By pressing on the head 20 of the nozzle 2, the user pushes the piston 3 which then compresses the product. The latter fills the axial duct 30 inside the tube 4 before escaping under the effect of the pressure around the finger 23 towards the duct 2a by elastically deforming the contours of the ejection orifice 34. When the pressing stops, the edges of the ejection orifice 34 close automatically and of sealed material around the finger 23.
Le distributeur représenté sur la figure 3 correspond à un troisième mode de réalisation dans lequel l'embout 2 est encore fixe par rapport au piston 3. Le tube gicleur 4 est d'une seule pièce avec l'embout 2 en étant solidaire de la tête distributrice 20. Le tube 4 est raccordé au conduit axial 30 du piston 3 par emboîtement étanche à l'intérieur du conduit 30 et prend appui par un épaulement périphérique 43 sur la face externe 3a du piston 3 au niveau du rebord dudit conduit 30.The distributor shown in FIG. 3 corresponds to a third embodiment in which the end piece 2 is still fixed relative to the piston 3. The nozzle tube 4 is in one piece with the end piece 2 being integral with the head distributor 20. The tube 4 is connected to the axial duct 30 of the piston 3 by sealed fitting inside the duct 30 and is supported by a peripheral shoulder 43 on the external face 3a of the piston 3 at the rim of said duct 30.
L'orifice d'éjection 41 du tube 4 se trouve à la jonction avec le conduit interne d'évacuation 2a de l'embout 2.The ejection orifice 41 of the tube 4 is located at the junction with the internal evacuation duct 2a of the nozzle 2.
L'orifice d'admission 40 se trouve à l'extrémité inférieure 4a du tube 4 et a une section rétrécie par rapport à celle du conduit axial 30 du fait de l'emboîtement.The inlet 40 is located at the lower end 4a of the tube 4 and has a narrowed section relative to that of the axial duct 30 due to the interlocking.
Le clapet d'échappement 7 est ici un élément indépendant disposé dans un logement élargi 27 ménagé dans le conduit interne d'évacuation 2a de l'embout 2.The exhaust valve 7 is here an independent element arranged in an enlarged housing 27 formed in the internal evacuation duct 2a of the nozzle 2.
Ce clapet est constitué, comme représenté sur la figure 4, d'une tige 70 portant à son extrémité externe une coupelle 71, dont le flanc latéral 71a, orienté vers le débouché du conduit 2a, forme une lèvre périphérique élastiquement déformable en appui étanche dans une position de fermeture (représentée en traits mixtes sur la figure) contre la paroi du logement 27. Le clapet 7 est retenu dans le logement 27 au moyen d'un croisillon périphérique 8 fixé autour de l'extrémité interne de la tige 70 et accroché sur la paroi interne dudit logement. Lors de la mise sous pression du réservoir 1 par appui de la tête distributrice 20, le produit s'échappe dans la direction fléchée P par l'orifice d'éjection 41 du tube gicleur 4, pénètre dans le conduit interne d'évacuation 2a, puis dans le logement 27 en passant au travers du croisillon 8, autour de la tige 70. Le produit vient ensuite déformer élastiquement la lèvre périphérique 71a pour libérer un passage latéral de sortie vers l'extérieur comme représenté en traits pleins sur la figure 4. Lorsque l'appui cesse, la lèvre 71a reprend élastiquement une position d'étanchéité à l'intérieur du logement 27. Le procédé de conditionnement d'un produit P dans le distributeur de l'invention est décrit ci-après en référence aux figures 6a à 6d.This valve consists, as shown in Figure 4, of a rod 70 carrying at its outer end a cup 71, whose lateral flank 71a, oriented towards the outlet of the conduit 2a, forms an elastically deformable peripheral lip in sealed support in a closed position (shown in phantom in the figure) against the wall of the housing 27. The valve 7 is retained in the housing 27 by means of a peripheral cross 8 fixed around the internal end of the rod 70 and hung on the internal wall of said housing. When pressurization of the reservoir 1 by pressing the dispensing head 20, the product escapes in the arrowed direction P through the ejection orifice 41 of the nozzle tube 4, enters the internal evacuation duct 2a, then into the housing 27 passing through the crosspiece 8, around the rod 70. The product then comes to elastically deform the peripheral lip 71a to release a lateral outlet passage towards the outside as shown in solid lines in FIG. 4. When the support ceases, the lip 71a resumes elastically a sealing position inside the housing 27. The method of packaging a product P in the dispenser of the invention is described below with reference to FIGS. 6a to 6d.
Le distributeur de l'invention est livré sous forme de deux composants destinés à être assemblés comme représenté sur les figures 6a à 6d par le conditionneur du produit P. Le premier composant est constitué du réservoir 1 lui-même (figure 6a). Le second composant est constitué du système d'obturation et de prélèvement comprenant l'embout 2 coiffé, d'une part, du capot 6, fixé, d'autre part, sur le piston 3 avec, le cas échéant, le ressort intermédiaire 5, et garni par ailleurs de la chemise 10. Le piston 3 solidaire de l'embout est, au préalable, introduit dans la chemise 10 par son ouverture inférieure. Au cours de cette opération, la lèvre 32 du piston 3, orientée en sens inverse du sens d'introduction, glisse le long de la paroi interne de la chemise 10 sans être endommagée jusqu'à ce que la bride 22 vienne en butée par l'intérieur, contre l'épaulement 11.The dispenser of the invention is delivered in the form of two components intended to be assembled as shown in FIGS. 6a to 6d by the conditioner of the product P. The first component consists of the reservoir 1 itself (FIG. 6a). The second component consists of the obturation and withdrawal system comprising the end piece 2 capped, on the one hand, by the cover 6, fixed, on the other hand, on the piston 3 with, if necessary, the intermediate spring 5 , and also lined with the jacket 10. The piston 3 secured to the endpiece is first introduced into the jacket 10 through its lower opening. During this operation, the lip 32 of the piston 3, oriented in the opposite direction to the direction of introduction, slides along the internal wall of the jacket 10 without being damaged until the flange 22 comes into abutment with the inside against shoulder 11.
Par la suite, lors du transport et de la manipulation des composants de l'assemblage par le conditionneur, la lèvre continuera d'être protégée par la chemise 10.Subsequently, during transport and handling of the assembly components by the conditioner, the lip will continue to be protected by the jacket 10.
Après remplissage du réservoir 1 avec le produit (figure 6b), le système d'obturation et de prélèvement est monté sur ledit réservoir par appui direct sur le capot 6 (figure 6c). La chemise interne 10 coulisse alors dans le réservoir 1, en contact serrant avec sa paroi interne, jusqu'à ce que son bord inférieur 10a vienne en butée contre le fond lb (figure 6d) ou, selon une variante (non représentée), sur un épaulement ménagé à cet effet. L'assemblage est effectué soit sous vide, soit à l'atmosphère et l'air comprimé et s'échappe alors par le clapet d'échappement, puis par l'évent 9 du capot 6. Dans ce dernier cas, il est conseillé de ne pas remplir complètement le réservoir 1. Le serrage final entre la chemise 10 et le réservoir 1 doit être suffisant pour assurer un assemblage définitif des composants entre eux mais il doit aussi être supérieur au serrage du capot 6 sur l'embout 2 pour que l'enlèvement dudit capot n'entraîne pas la séparation de la chemise 10 du réservoir 1. After filling the reservoir 1 with the product (FIG. 6b), the closure and sampling system is mounted on the said reservoir by direct pressing on the cover 6 (FIG. 6c). The internal sleeve 10 then slides in the reservoir 1, in tight contact with its internal wall, until its lower edge 10a abuts against the bottom lb (FIG. 6d) or, according to a variant (not shown), on a shoulder provided for this purpose. Assembly is carried out either under vacuum or in the atmosphere and compressed air and then escapes through the valve exhaust, then through the vent 9 of the cover 6. In the latter case, it is advisable not to completely fill the tank 1. The final tightening between the jacket 10 and the tank 1 must be sufficient to ensure a final assembly. components together but it must also be greater than the tightening of the cover 6 on the end piece 2 so that the removal of said cover does not cause the separation of the jacket 10 from the tank 1.

Claims

REVENDICATIONS
1. Distributeur de produits liquides ou pâteux du type comprenant notamment un réservoir (1) de produit surmonté, d'une part, d'un embout (2) pourvu d'un conduit interne d'évacuation (2a) et équipé, d'autre part, de moyens de prélèvement du produit munis d'un clapet d'échappement, caractérisé en ce que lesdits moyens de prélèvement comprennent un piston (3) logé dans le réservoir (1) et traversé par un conduit axial (30) raccordé à un tube gicleur (4) dont l'extrémité inférieure (4a) délimite avec ledit conduit axial (30) un orifice d'admission (40) et dont l'extrémité supérieure (4b) est solidaire dudit embout (2) formant poussoir qui prend appui directement ou indirectement sur la face externe (3a) du piston (3) pour mettre le réservoir (1) sous pression. 1. Distributor of liquid or pasty products of the type comprising in particular a reservoir (1) of product surmounted, on the one hand, by a nozzle (2) provided with an internal evacuation duct (2a) and equipped with on the other hand, means for removing the product provided with an exhaust valve, characterized in that said means for taking off comprise a piston (3) housed in the tank (1) and traversed by an axial duct (30) connected to a nozzle tube (4) whose lower end (4a) defines with said axial duct (30) an inlet orifice (40) and whose upper end (4b) is integral with said end piece (2) forming a pusher which takes press directly or indirectly on the external face (3a) of the piston (3) to put the tank (1) under pressure.
2. Distributeur selon la revendication 1, caractérisé en ce que la face externe (3a) dudit piston (3) comporte une douille (31) délimitant avec la paroi latérale interne du réservoir (1) un espace périphérique (12) dans lequel est engagée la partie inférieure latérale de l'embout (2).2. Dispenser according to claim 1, characterized in that the external face (3a) of said piston (3) comprises a bush (31) delimiting with the internal lateral wall of the tank (1) a peripheral space (12) in which is engaged the lower lateral part of the end piece (2).
3. Distributeur selon l'une des revendications précédentes, caractérisé en ce que le bord supérieur du réservoir (1) est pourvu d'un épaulement (11) sous lequel est engagée une bride périphérique (22) ménagée sur le bord inférieur latéral de l'embout (2).3. Dispenser according to one of the preceding claims, characterized in that the upper edge of the tank (1) is provided with a shoulder (11) under which is engaged a peripheral flange (22) formed on the lower lateral edge of the 'end piece (2).
4. Distributeur selon l'une des revendications précédentes, caractérisé en ce que ledit embout (2) est constitué d'une part, d'une tête distributrice (20) pourvue dudit conduit interne d'évacuation (2a) communiquant à sa partie inférieure avec le tube gicleur (4) et se prolongeant, d'autre part, vers le réservoir (1) par une jupe latérale (21).4. Dispenser according to one of the preceding claims, characterized in that said end piece (2) consists on the one hand, of a dispensing head (20) provided with said internal evacuation duct (2a) communicating at its lower part with the nozzle tube (4) and extending, on the other hand, towards the tank (1) by a side skirt (21).
5. Distributeur selon l'une des revendications précédentes, caractérisé en ce que le réservoir (1) est pourvu d'une chemise latérale interne (10).5. Distributor according to one of the preceding claims, characterized in that the reservoir (1) is provided with an internal lateral jacket (10).
6. Distributeur selon l'une des revendications précédentes, caractérisé en ce qu'il comporte un capot amovible (6) destiné à coiffer l'embout (2) et dont la paroi latérale interne est pourvue d'une rainure (9) formant évent. 6. Dispenser according to one of the preceding claims, characterized in that it comprises a removable cover (6) intended to cover the end piece (2) and whose internal side wall is provided with a groove (9) forming a vent .
7. Distributeur selon les revendications 5 et 6, caractérisé en ce que le capot (6) est emboîté de façon télescopique sur la partie supérieure de la chemise interne (10) en affleurant la paroi latérale externe (la) du réservoir (1).7. Dispenser according to claims 5 and 6, characterized in that the cover (6) is telescopically fitted on the upper part of the inner liner (10) by being flush with the outer side wall (la) of the tank (1).
8. Distributeur selon l'une des revendications précédentes, caractérisé en ce que ledit conduit axial (30) du piston (3) fait saillie vers l'intérieur du réservoir (1) et le fond (lb) du réservoir a un profil complémentaire de celui de la face interne (3b) du piston (3) pour assurer l'évacuation complète du produit.8. Distributor according to one of the preceding claims, characterized in that said axial duct (30) of the piston (3) projects towards the inside of the tank (1) and the bottom (lb) of the tank has a complementary profile of that of the internal face (3b) of the piston (3) to ensure complete evacuation of the product.
9. Distributeur selon l'une des revendications précédentes, caractérisé en ce que ledit embout (2) est mobile axialement et relativement au piston (3) en étant rappelé en position d'éloignement par un ressort (5) prenant appui sur la face externe (3a) du piston (3).9. Distributor according to one of the preceding claims, characterized in that said end piece (2) is axially movable and relative to the piston (3) being returned to the remote position by a spring (5) bearing on the external face (3a) of the piston (3).
10. Distributeur selon la revendication 9, caractérisé en ce que le tube gicleur (4) est alors formé d'une tige creuse engagée de manière coulissante dans le conduit axial (30) et dont l'extrémité inférieure (4a) fait saillie à l'intérieur du réservoir (1) quelle que soit la position de l'embout (2).10. Distributor according to claim 9, characterized in that the nozzle tube (4) is then formed of a hollow rod slidably engaged in the axial duct (30) and the lower end (4a) of which projects inside the tank (1) whatever the position of the nozzle (2).
11. Distributeur selon la revendication 9 ou 10, caractérisé en ce que l'extrémité inférieure (4a) du tube gicleur (4) est obturée par une embase pleine (42) de section élargie destinée à venir en appui étanche lors du rappel de l'embout (2) contre le rebord interne du conduit axial (30) en formant ainsi le clapet d'échappement.11. Distributor according to claim 9 or 10, characterized in that the lower end (4a) of the nozzle tube (4) is closed by a solid base (42) of enlarged section intended to come into leaktight support during the recall of the end piece (2) against the internal rim of the axial duct (30) thereby forming the exhaust valve.
12. Distributeur selon l'une des revendications 9 à 11, caractérisé en ce que ledit orifice d'admission (40) débouche latéralement à l'extrémité inférieure (4a) du tube gicleur (4), de part et d'autre de son axe central. 12. Distributor according to one of claims 9 to 11, characterized in that said intake orifice (40) opens laterally at the lower end (4a) of the nozzle tube (4), on either side of its central axis.
13. Distributeur selon l'une des revendications 1 à 8, caractérisé en ce que ledit conduit axial (30) se termine à son extrémité externe par une calotte hémisphérique (33) percée d'un orifice d'éjection central (34) à bords élastiquement deformables destiné à être obturé dans une position de fermeture par un doigt axial (23) solidaire de l'embout (2) et formant un clapet d'échappement.13. Distributor according to one of claims 1 to 8, characterized in that said axial duct (30) ends at its outer end by a hemispherical cap (33) pierced with a central ejection orifice (34) with edges elastically deformable intended to be closed in a closed position by an axial finger (23) integral with the end piece (2) and forming an exhaust valve.
14. Distributeur selon la revendication 13, caractérisé en ce que le tube gicleur (4) est emmanché sur le conduit axial (30) et prend appui par son bord inférieur (4a) sur la face externe (3a) du piston (3).14. Distributor according to claim 13, characterized in that the nozzle tube (4) is fitted on the axial duct (30) and bears by its lower edge (4a) on the external face (3a) of the piston (3).
15. Distributeur selon l'une des revendications 1 à 8, caractérisé en ce que le tube gicleur (4) est emboîté dans le conduit axial (30) et prend appui par un épaulement périphérique (43) sur la face externe (3a) du piston (3).15. Distributor according to one of claims 1 to 8, characterized in that the nozzle tube (4) is fitted into the axial duct (30) and takes support by a peripheral shoulder (43) on the external face (3a) of the piston (3).
16. Distributeur selon la revendication 15, caractérisé en ce que le conduit interne d'évacuation (2a) de l'embout (2) est muni du clapet d'échappement (7) constitué d'une tige (70) portant d'une part à son extrémité externe une coupelle (71) dont le flanc latéral forme une lèvre périphérique (71a) élastiquement déformable et, d'autre part, à son extrémité interne un croisillon (8) de fixation dans ledit conduit d'évacuation (2a). 16. Distributor according to claim 15, characterized in that the internal evacuation duct (2a) of the end piece (2) is provided with the exhaust valve (7) consisting of a rod (70) carrying a share at its outer end a cup (71) whose lateral flank forms an elastically deformable peripheral lip (71a) and, on the other hand, at its inner end a crosspiece (8) for fixing in said discharge duct (2a) .
17. Distributeur selon l'une des revendications précédentes, caractérisé en ce que ledit piston (3) a une section transversale sensiblement en cloche avec une lèvre périphérique (32) en appui étanche contre la paroi interne du réservoir (1). 17. Distributor according to one of the preceding claims, characterized in that said piston (3) has a substantially bell-shaped cross section with a peripheral lip (32) in sealed abutment against the internal wall of the tank (1).
18. Procédé de conditionnement d'un produit liquide ou pâteux dans un distributeur selon l'une quelconque des revendications 1 à 17, caractérisé en ce qu'on remplit le réservoir (1) de produit P et, parallèlement, on monte le système d'obturation et de prélèvement en fixant l'embout (2) sur le piston (3) avec, le cas échéant, le ressort intermédiaire (5), en introduisant ensuite l'ensemble ainsi formé dans la chemise (10) jusqu'à ce que la bride (22) de l'embout (2) vienne en butée par l'intérieur contre l'épaulement (11) de la chemise (10) et en coiffant l'embout (2) avec le capot (6), puis on assemble le système d'obturation et de prélèvement sur le réservoir (1) en faisant coulisser la chemise (10) au contact de la paroi interne du réservoir (1) avec serrage radial. 18. A method of packaging a liquid or pasty product in a dispenser according to any one of claims 1 to 17, characterized in that the tank (1) is filled with product P and, in parallel, the system d '' sealing and removal by fixing the end piece (2) on the piston (3) with, if necessary, the intermediate spring (5), then introducing the assembly thus formed in the jacket (10) until that the flange (22) of the end piece (2) comes into abutment from the inside against the shoulder (11) of the jacket (10) and by covering the end piece (2) with the cover (6), then the closure and sampling system is assembled on the reservoir (1) by sliding the jacket (10) in contact with the internal wall of the reservoir (1) with radial tightening.
EP96934958A 1995-10-23 1996-10-23 Dispenser for liquid or pasty materials Expired - Lifetime EP0857149B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9512432A FR2740118B1 (en) 1995-10-23 1995-10-23 DISPENSER FOR LIQUID OR PASTY PRODUCTS
FR9512432 1995-10-23
PCT/FR1996/001656 WO1997015509A2 (en) 1995-10-23 1996-10-23 Dispenser for liquid or pasty materials

Publications (2)

Publication Number Publication Date
EP0857149A2 true EP0857149A2 (en) 1998-08-12
EP0857149B1 EP0857149B1 (en) 1999-09-01

Family

ID=9483799

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96934958A Expired - Lifetime EP0857149B1 (en) 1995-10-23 1996-10-23 Dispenser for liquid or pasty materials

Country Status (15)

Country Link
US (1) US6010036A (en)
EP (1) EP0857149B1 (en)
JP (1) JP3612079B2 (en)
KR (1) KR100462967B1 (en)
CN (1) CN1068852C (en)
AT (1) ATE183983T1 (en)
AU (1) AU7307796A (en)
BR (1) BR9611338A (en)
CA (1) CA2234644C (en)
DE (1) DE69604079T2 (en)
ES (1) ES2137729T3 (en)
FR (1) FR2740118B1 (en)
HK (1) HK1017327A1 (en)
MX (1) MX9803159A (en)
WO (1) WO1997015509A2 (en)

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Publication number Priority date Publication date Assignee Title
FR2789371B1 (en) * 1999-02-05 2001-04-27 Sofab DISTRIBUTOR OF CHEMICALLY UNSTABLE PRODUCTS
US6308865B1 (en) * 2000-10-24 2001-10-30 Hui-Yu Lin Container-mounted pump means with external restoring spring
WO2002068317A1 (en) * 2001-02-21 2002-09-06 Cohen Ben Z Accurate dosing pump and accessories therefor
FR2821831B1 (en) * 2001-03-06 2003-08-01 Airlessystems SAMPLE DISPENSER OF FLUID COSMETIC PRODUCT
EP1404609B1 (en) * 2001-05-23 2011-08-31 Cohen, Ben Z. Accurate dosing pump
FR2852934B1 (en) * 2003-03-27 2005-12-23 Rexam Dispensing Sys PRODUCT DISPENSER COMPRISING A PUSH-ACTUATING PUMP
KR100525455B1 (en) * 2003-11-26 2005-11-04 쓰리애플즈코스메틱스 주식회사 Vacuum cosmetic instrument having structure for quantitative discharge with downward nozzle head
EP1701800A1 (en) * 2003-12-22 2006-09-20 Valois SAS Fluid product dispensing member and dispenser comprising one such member
CN102764719B (en) * 2004-09-27 2016-10-05 因斯蒂尔医学技术有限公司 For storing distributor and the filling fixing device thereof of distribution material
JP4668671B2 (en) * 2005-04-19 2011-04-13 釜屋化学工業株式会社 Discharge container
KR100766816B1 (en) 2006-01-18 2007-10-17 주식회사 다린 A airless type cosmetics case in which a contents fixed quantity discharge and contents leakage prevention and deteriorate prevention is possible
US8132695B2 (en) 2006-11-11 2012-03-13 Medical Instill Technologies, Inc. Multiple dose delivery device with manually depressible actuator and one-way valve for storing and dispensing substances, and related method
TW200836986A (en) * 2007-03-02 2008-09-16 guo-zhong Fang Pumping-type container bottle
US20090008413A1 (en) 2007-04-17 2009-01-08 Choi Hee Jin Airless dispensing pump container with an airtight push down type nozzle head
TW201113203A (en) * 2009-10-09 2011-04-16 guo-zhong Fang Container bottle
US20110240677A1 (en) * 2010-03-03 2011-10-06 Walter Dwyer Airless double-piston double-action pump and cosmetics bottle dispensing device
DE102010048085A1 (en) * 2010-10-04 2012-04-05 Ing. Erich Pfeiffer Gmbh discharge
GB2508862A (en) * 2012-12-13 2014-06-18 Tlc Design Ltd Piston incorporating valve controlling flow of fluid from storage cylinder
WO2022261918A1 (en) * 2021-06-18 2022-12-22 The Procter & Gamble Company Pump dispenser system

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Also Published As

Publication number Publication date
BR9611338A (en) 1999-12-28
CN1200096A (en) 1998-11-25
MX9803159A (en) 1998-11-30
HK1017327A1 (en) 1999-11-19
CA2234644A1 (en) 1997-05-01
ES2137729T3 (en) 1999-12-16
ATE183983T1 (en) 1999-09-15
EP0857149B1 (en) 1999-09-01
WO1997015509A3 (en) 1997-06-26
JP3612079B2 (en) 2005-01-19
KR100462967B1 (en) 2005-06-08
FR2740118A1 (en) 1997-04-25
JPH11513642A (en) 1999-11-24
DE69604079T2 (en) 2000-03-02
DE69604079D1 (en) 1999-10-07
CN1068852C (en) 2001-07-25
FR2740118B1 (en) 1998-02-20
US6010036A (en) 2000-01-04
AU7307796A (en) 1997-05-15
KR19990066973A (en) 1999-08-16
WO1997015509A2 (en) 1997-05-01
CA2234644C (en) 2005-08-23

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