EP1121203B1 - Low capacity pump with enhanced compatibility - Google Patents

Low capacity pump with enhanced compatibility Download PDF

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Publication number
EP1121203B1
EP1121203B1 EP99947587A EP99947587A EP1121203B1 EP 1121203 B1 EP1121203 B1 EP 1121203B1 EP 99947587 A EP99947587 A EP 99947587A EP 99947587 A EP99947587 A EP 99947587A EP 1121203 B1 EP1121203 B1 EP 1121203B1
Authority
EP
European Patent Office
Prior art keywords
pump
tube
spray tube
spring
shoulder
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
EP99947587A
Other languages
German (de)
French (fr)
Other versions
EP1121203A1 (en
Inventor
Jean-Louis Bougamont
Hervé Lompech
Pierre Dumont
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 Sofab
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 Sofab filed Critical Rexam Sofab
Publication of EP1121203A1 publication Critical patent/EP1121203A1/en
Application granted granted Critical
Publication of EP1121203B1 publication Critical patent/EP1121203B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1073—Springs
    • B05B11/1074—Springs located outside pump chambers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1001—Piston pumps
    • B05B11/1023—Piston pumps having an outlet valve opened by deformation or displacement of the piston relative to its actuating stem

Definitions

  • the face of the shoulder located on the side of the outer end of the nozzle tube is beveled.
  • said shoulder is formed all around the tube.

Landscapes

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

Abstract

A pump having a plastic body which includes first and second body ends. The first body end of the pump body defines a metering chamber and has an inlet valve including a valve seat and a ball disposed therein. The second body end of the pump body cooperates with a spray tube carrying an outlet valve positioned near a bottom end thereof and mounted for axial movement with respect to the pump body. A helical spring surrounds the spray tube wherein a top end of the spray tube defines a laterally extending shoulder of which the helical spring abuts at one end. Both the pump body and the ball of the inlet valve are fabricated from a transparent or at least translucent plastic material.

Description

La présente invention concerne une pompe et plus particulièrement une pompe de faible capacité pour la distribution de produits liquides tels que des parfums et des produits cosmétiques ou pharmaceutiques.The present invention relates to a pump and more particularly to a low capacity pump for dispensing liquid products such as perfumes and cosmetic or pharmaceutical products.

Les pompes traditionnelles comprennent généralement un corps en matière plastique délimitant une chambre de dosage pourvue à une première extrémité d'un clapet d'admission en produit liquide alimenté à partir d'un réservoir et à une seconde extrémité d'un clapet d'échappement porté par la partie interne d'un tube gicleur mobile axialement en coopérant avec un ressort hélicoïdal.The conventional pumps generally comprise a plastic body delimiting a metering chamber provided at one end with a liquid product inlet valve fed from a reservoir and at a second end of an exhaust valve worn. by the inner part of an axially movable nozzle tube cooperating with a helical spring.

Le document US 3 187 960 décrit une telle pompe.The document US 3,187,960 describes such a pump.

Cependant, dans de telles pompes le clapet d'admission comporte une bille, réalisée avec des matériaux métalliques, qui est logée à l'intérieur du corps de pompe dans la chambre de dosage tout comme les moyens de rappel constitués généralement d'un ressort lui aussi métalliqueHowever, in such pumps the intake valve comprises a ball, made of metal materials, which is housed inside the pump body in the metering chamber as the return means generally consist of a spring him also metallic

Par conséquent, le produit qui séjourne même pendant une courte période dans la chambre de dosage est mis en contact avec des éléments métalliques, ce qui présente des risques de modification des propriétés et notamment de la qualité du produit.Consequently, the product that stays for a short time in the metering chamber is brought into contact with metal elements, which presents risks of modifying the properties and in particular the quality of the product.

Par ailleurs, le corps de pompe est réalisé avec une matière plastique opaque pour masquer les éléments métalliques internes. Or le réservoir est le plus souvent constitué d'un flacon en verre ou en matière plastique transparente qui laisse apparaître le corps de la pompe, ce qui n'est pas satisfaisant sur le plan esthétique.In addition, the pump body is made of an opaque plastic material to mask the internal metal elements. Or the tank is usually made of a glass bottle or transparent plastic material which reveals the body of the pump, which is not satisfactory in terms of aesthetics.

Par ailleurs, il existe aussi des pompes dans lesquelles les moyens de rappel sont constitués d'un ressort hélicoïdal disposé à l'extérieur de la chambre de dosage.Furthermore, there are also pumps in which the return means consist of a coil spring disposed outside the metering chamber.

Toutefois, dans ce mode de réalisation, le ressort de rappel est maintenu en légère compression autour de la partie externe du tube gicleur notamment par appui de son extrémité supérieure dans le fond d'une cavité ménagée sur une tête de distribution coiffant l'extrémité dudit tube.However, in this embodiment, the return spring is held in slight compression around the outer portion of the nozzle tube in particular by pressing its upper end into the bottom of a cavity formed on a dispensing head capping the end of said tube.

Par conséquent, un tel mode de réalisation ne permet pas de séparer la pompe de la tête de distribution en toute sécurité car, dans ce cas, le ressort ne serait plus solidaire d'aucune pièce et serait alors susceptible d'être perdu notamment lors des opérations de stockage ou de transfert automatique.Therefore, such an embodiment does not allow to separate the pump from the dispensing head safely because, in this In this case, the spring would no longer be integral with any part and would then be likely to be lost, in particular during storage or automatic transfer operations.

En outre, les opérations d'assemblage sont complexes car elles impliquent le montage préalable du ressort.In addition, the assembly operations are complex because they involve the prior assembly of the spring.

La présente invention a pour but de résoudre ces problèmes techniques de manière satisfaisante.The present invention aims to solve these technical problems satisfactorily.

Ce but est atteint conformément à l'invention au moyen d'une pompe selon la revendication 1.This object is achieved according to the invention by means of a pump according to claim 1.

Selon encore une autre caractéristique, le corps de pompe est réalisé en polypropylène.According to yet another characteristic, the pump body is made of polypropylene.

Selon une variante particulière, la face de l'épaulement en contact avec la première extrémité du ressort est plane et perpendiculaire à l'axe du tube gicleur.According to a particular variant, the face of the shoulder in contact with the first end of the spring is flat and perpendicular to the axis of the nozzle tube.

Selon une autre variante, la face de l'épaulement située du côté de l'extrémité externe du tube gicleur est biseautée.According to another variant, the face of the shoulder located on the side of the outer end of the nozzle tube is beveled.

De préférence, ledit épaulement est réalisé sur tout le pourtour du tube.Preferably, said shoulder is formed all around the tube.

La pompe de l'invention permet un transfert du produit sans contact avec un quelconque élément métallique, ce qui préserve les qualités du produit et simplifie les opérations de fabrication et de montage tout en offrant un prix de revient économique.The pump of the invention allows a transfer of the product without contact with any metal element, which preserves the qualities of the product and simplifies the manufacturing and assembly operations while offering an economic cost.

Par ailleurs, tous les constituants de la pompe qui sont disposés à l'intérieur du réservoir sont réalisés avec une matière translucide ou transparente à la lumière, ce qui améliore considérablement l'aspect esthétique d'ensemble dans la mesure où la pompe n'apparaît pratiquement plus au sein du produit liquide.Furthermore, all the constituents of the pump which are arranged inside the tank are made with a translucent or light-transparent material, which considerably improves the overall aesthetic appearance insofar as the pump does not appear. practically more within the liquid product.

L'invention sera mieux comprise à la lecture de la description qui va suivre en référence au dessin sur lequel :

  • la figure 1 unique représente une vue en coupe d'un mode de réalisation de la pompe de l'invention.
The invention will be better understood on reading the following description with reference to the drawing in which:
  • Figure 1 is a single sectional view of an embodiment of the pump of the invention.

La pompe représentée sur la figure 1 comprend un corps 1 réalisé avec une matière plastique transparente ou au moins translucide, par exemple du polypropylène.The pump shown in Figure 1 comprises a body 1 made of a transparent plastic material or at least translucent, for example polypropylene.

Le corps 1 délimite une chambre de dosage 10 pourvue à une première extrémité d'un clapet d'admission 11 en produit liquide alimenté via un tube plongeur 6 lui aussi translucide à partir d'un réservoir ou d'un flacon (non représenté).The body 1 defines a metering chamber 10 provided at a first end of an intake valve 11 of liquid product fed via a dip tube 6 also translucent from a reservoir or a bottle (not shown).

Selon l'invention, le clapet d'admission 11 comporte une bille 5 non métallique, réalisée avec un matériau transparent à la lumière ou au moins translucide tel que du verre ou du propylène.According to the invention, the intake valve 11 comprises a non-metallic ball 5, made of a material transparent to light or at least translucent such as glass or propylene.

La chambre 10 est pourvue à une seconde extrémité, opposée à la première extrémité, d'un clapet d'échappement 12 porté par la partie interne 2a d'un tube gicleur 2 délimitant un conduit d'éjection axial 20.The chamber 10 is provided at a second end, opposite the first end, of an exhaust valve 12 carried by the inner part 2a of a nozzle tube 2 delimiting an axial ejection duct 20.

Le tube gicleur 2 est mobile axialement en coopérant avec un ressort hélicoïdal 3 assurant le rappel en position de fermeture du clapet 12. Le ressort 3 est monté coaxialement autour de la partie externe du tube 2.The nozzle tube 2 is axially movable by cooperating with a helical spring 3 ensuring the return to the closed position of the valve 12. The spring 3 is mounted coaxially around the outer part of the tube 2.

La partie externe du tube 2 est pourvue d'un épaulement latéral 21 contre lequel une première extrémité 31 du ressort 3 est en appui de calage. Le ressort 3 est maintenu en légère compression même dans la position de fermeture du clapet d'échappement 12.The outer portion of the tube 2 is provided with a lateral shoulder 21 against which a first end 31 of the spring 3 is in wedging support. The spring 3 is held in slight compression even in the closed position of the exhaust valve 12.

L'épaulement 21 est ici réalisé sur tout le pourtour du tube 2 et comporte une face plane 21a de contact avec la spire de l'extrémité 31 du ressort 3. La face 21 a est, en outre ici, perpendiculaire à l'axe X du tube 2 et de la pompe. La face 21 b de l'épaulement située du côté de l'extrémité externe 2b du tube 2 est biseautée et forme éventuellement une butée pour le montage d'une tête de distribution ou d'un bouton-poussoir (non représenté) destiné à coiffer le tube 2.The shoulder 21 is here made around the entire periphery of the tube 2 and has a flat face 21a of contact with the turn of the end 31 of the spring 3. The face 21a is furthermore here perpendicular to the X axis tube 2 and pump. The face 21b of the shoulder located on the side of the outer end 2b of the tube 2 is beveled and possibly form a stop for mounting a dispensing head or a push-button (not shown) for capping the tube 2.

De préférence, la tête de distribution comportera alors soit un alésage cylindrique permettant l'emmanchement en butée sur l'extrémité 2b du tube soit une cavité à profil tronconique destinée à recevoir l'épaulement 21 par assemblage cône sur cône.Preferably, the dispensing head will then have either a cylindrical bore allowing the fitting abutting on the end 2b of the tube is a truncated cone shaped cavity for receiving the shoulder 21 cone cone assembly.

La pompe comporte également une douille interne 4 emmanchée dans le corps 1 pour obturer la chambre 10 autour de la partie interne du tube gicleur 2.The pump also comprises an inner sleeve 4 fitted into the body 1 to close the chamber 10 around the inner part of the nozzle tube 2.

La douille 4 est pourvue d'une collerette 41 de support sur le bord externe du corps 1 qui se prolonge à l'intérieur de la chambre 10 par une jupe 42. Dans le mode de réalisation représenté, la jupe 42 est fixée par encliquetage dans la paroi latérale interne de la chambre 10.The sleeve 4 is provided with a flange 41 of support on the outer edge of the body 1 which extends inside the chamber 10 by a skirt 42. In the embodiment shown, the skirt 42 is snap-fitted into the inner side wall of the chamber 10.

L'extrémité interne de la jupe 42 forme une butée haute pour le clapet d'échappement 12 porté par la partie interne du tube 2. Cette butée correspond à la position de fermeture du clapet 12. Le fond 4a de la douille 4 est destiné à recevoir l'appui de la seconde extrémité 32 du ressort 3.The inner end of the skirt 42 forms a high stop for the exhaust valve 12 carried by the inner portion of the tube 2. This stop corresponds to the closed position of the valve 12. The bottom 4a of the sleeve 4 is intended for receive support from the second end 32 of the spring 3.

Claims (5)

  1. A pump of the type comprising a casing (1) made of a plastic material, defining a dosing chamber (10), the first end of which is provided with a ball (5) check valve (11) for the admission of a liquid product from a container, and a second end of which is provided with a delivery check valve (12) supported by the inner part of an axially mobile spray tube (2) by cooperating with a coil spring (3) coaxially mounted about the outer part of said tube (2), provided with a side shoulder (21) against which a first end (31) of said spring (3) is resting and locked,
    characterized in that the casing (1) is made of a transparent or at least a translucent plastic material, whereas the ball is made of glass or polypropylene, and
    in that it includes, in addition, an inner socket (4) inserted into said casing (1) in oder to close said chamber (10) about the inner part of the spray tube (2) and the bottom (4a) of which is intended for receiving the resting second end (32) of the spring (3) and which extends inside the chamber (10) by a skirt (42) snapped into the inner side wall of said chamber and the lower end of which forms an upper stop for the delivery check valve (12) supported by the inner part of said tube (2).
  2. A pump according to claim 1, characterized in that the pump casing (1) is made of polypropylene.
  3. A pump according to one of the preceding claims, characterized in that the face (21b) of the shoulder (21) in contact with the first end (31) of the spring (3) is flat and perpendicular to the axis (X) of the spray tube (2).
  4. A pump according to one of the preceding claims, characterized in that the face (21b) of the shoulder (21) located on the outer end (2b) side of the spray tube (2) is bevelled.
  5. A pump according to one of the preceding claims, characterized in that said shoulder (21) is provided on the whole perimeter of the tube (2).
EP99947587A 1998-10-16 1999-10-15 Low capacity pump with enhanced compatibility Expired - Lifetime EP1121203B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9813004 1998-10-16
FR9813004A FR2784717B1 (en) 1998-10-16 1998-10-16 LOW CAPACITY PUMP WITH IMPROVED COMPATIBILITY
PCT/FR1999/002514 WO2000023199A1 (en) 1998-10-16 1999-10-15 Low capacity pump with enhanced compatibility

Publications (2)

Publication Number Publication Date
EP1121203A1 EP1121203A1 (en) 2001-08-08
EP1121203B1 true EP1121203B1 (en) 2008-03-05

Family

ID=9531661

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99947587A Expired - Lifetime EP1121203B1 (en) 1998-10-16 1999-10-15 Low capacity pump with enhanced compatibility

Country Status (13)

Country Link
US (1) US6415959B1 (en)
EP (1) EP1121203B1 (en)
JP (1) JP4307736B2 (en)
CN (1) CN1104964C (en)
AT (1) ATE387964T1 (en)
AU (1) AU6098099A (en)
BR (1) BR9914769A (en)
CA (1) CA2347140A1 (en)
DE (1) DE69938311T2 (en)
ES (1) ES2303384T3 (en)
FR (1) FR2784717B1 (en)
HK (1) HK1040210B (en)
WO (1) WO2000023199A1 (en)

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CN202321216U (en) * 2011-12-14 2012-07-11 东莞怡信磁碟有限公司 Refillable spraying bottle
US20140252042A1 (en) * 2013-03-06 2014-09-11 Georgia-Pacific Consumer Products Lp Fluid dispenser
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Also Published As

Publication number Publication date
HK1040210A1 (en) 2002-05-31
DE69938311T2 (en) 2009-03-19
ES2303384T3 (en) 2008-08-01
WO2000023199A1 (en) 2000-04-27
EP1121203A1 (en) 2001-08-08
JP2002527236A (en) 2002-08-27
HK1040210B (en) 2003-08-22
AU6098099A (en) 2000-05-08
CN1323246A (en) 2001-11-21
US6415959B1 (en) 2002-07-09
CN1104964C (en) 2003-04-09
FR2784717B1 (en) 2001-12-07
FR2784717A1 (en) 2000-04-21
CA2347140A1 (en) 2000-04-27
DE69938311D1 (en) 2008-04-17
BR9914769A (en) 2001-11-13
ATE387964T1 (en) 2008-03-15
JP4307736B2 (en) 2009-08-05

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