EP1122190A1 - Aerosol container with pouch and improved gasket - Google Patents

Aerosol container with pouch and improved gasket Download PDF

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Publication number
EP1122190A1
EP1122190A1 EP01400084A EP01400084A EP1122190A1 EP 1122190 A1 EP1122190 A1 EP 1122190A1 EP 01400084 A EP01400084 A EP 01400084A EP 01400084 A EP01400084 A EP 01400084A EP 1122190 A1 EP1122190 A1 EP 1122190A1
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EP
European Patent Office
Prior art keywords
seal
edge
pocket
container
cup
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
EP01400084A
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German (de)
French (fr)
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EP1122190B1 (en
Inventor
Gilles Baudin
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LOreal SA
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LOreal SA
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Publication of EP1122190A1 publication Critical patent/EP1122190A1/en
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Publication of EP1122190B1 publication Critical patent/EP1122190B1/en
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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
    • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/38—Details of the container body
    • 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
    • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/60—Contents and propellant separated
    • B65D83/62—Contents and propellant separated by membrane, bag, or the like

Definitions

  • the present invention relates to a device of the "pocket aerosol" type.
  • Such containers are suitable in particular for packaging cosmetic products, including hair products, personal care products, makeup or skincare.
  • Devices of this type are devices capable of containing and dispensing under pressure of liquid or pasty materials. They have a container rigid outer and a flexible inner container, preferably made of aluminum or plastic material, the upper edge of which is fixed to the outer container. They also include a dispensing valve generally mounted on a cup. The bottom of the outer container usually has an opening closable for the introduction of a propellant into the volume formed between the outer container and the inner container.
  • the flexible internal container, or “pocket” usually contains the consumer product, while the annular chamber, between the pocket and the external container or “housing aerosol "is filled with a propellant, ie a gas under pressure.
  • a propellant ie a gas under pressure.
  • the dispensing valve is opened, i.e. by pushing in either by tilting, via a distribution head in the form of a pushbutton. The pressure exerted by the propellant on the pocket acts and expels the product through the dispensing valve out of the pocket.
  • the aerosol container (outer container) generally has a bottom and a cylindrical body, ending at its end opposite the bottom by a part domed or "dome” including a free edge, configured as a rolled edge, defines an opening.
  • a piece in form of metallic disc called "cup”.
  • the dispensing valve is attached generally in the center of the cup and is thus in the axis of the aerosol at poached.
  • the cup has a peripheral flange intended to ensure the fixing of the cup by crimping on the rolled edge of the outer container.
  • the tightening of the cup on the dome is done by swaging, that is to say by deforming the cup from the inside, so as to flatten it against the inner surface of the dome of the outer container, the deformation caused causing the flange to be tightened on the rolled edge.
  • the seal between the flange of the cup and the rolled edge of the container is generally provided by an elastic seal.
  • the bag In bag aerosols, the bag is usually attached to the body at the level of the crimping of the cup on the rolled edge, the pocket being suspended by its neck in the axis of the aerosol can.
  • the pocket neck ends in part upper by a rim of dimension allowing it on the one hand to be inserted in the collar of the cup, and on the other hand to rest on the rolled edge of the dome.
  • the rim of the pocket found clamped between the cup collar and the rolled edge.
  • the precision of mounting must seal between the three elements; cup, pocket, and rolled edge of the outer container.
  • the seal between the pocket and the container exterior is generally the most delicate due to the transience of the gas propellant, and due to the nature of the material forming the pocket. Indeed, the material is generally a plastic material, not very elastic, such as polypropylene or polyethylene.
  • a device for packaging and distribution under pressure of a product contained in a pocket with flexible walls in communication with a valve said tank being disposed in an external container, a propellant being contained in the volume formed between the outer container and the bag, said valve being mounted on a cup, means for fixing the cup and an open edge pocket, on one edge of the outer container, a seal allowing, when compressed between the fixing means and the edge of the container, form a seal between the gas, the product, and the outside, a setback being formed either by the seal in the uncompressed position or by the fixing means, either by the edge of the outer container, so as to ensure compression substantially uniform of at least part of the seal, both and on the other of said recess.
  • a first portion of the seal is sandwiched between the edge of the outer container and the open edge of the pocket, or between the open edge of the pocket and the fixing means.
  • the portion of the seal, sandwiched between the edge of the container outside and the open edge of the pocket, or between the open edge of the pocket and the fixing means consists of an inner annular part of said seal sealing.
  • the open edge of the pocket is arranged opposite the setback, and preferably substantially in contact with the latter. Of such positioning, it follows that the pocket does not generate any excess thickness, likely to significantly modify the degree of compression of the joint seal, when sandwiched between the container and the valve cup.
  • the seal is formed a separate item from the pocket. It provides a much better seal.
  • the sealing function being carried out by an element separate from the pocket, it is possible to use materials to make the pocket, providing good better compatibility with certain products to be packaged, in particular some cosmetic products.
  • a second portion of the seal is clamped directly between the edge of the container and the fixing means.
  • the portion of the seal, sandwiched directly between the edge of the container and the fixing means is formed of an annular portion outside of the seal.
  • the step is of thickness substantially equal to the thickness from the open edge of the pocket.
  • the part of the seal located opposite the edge of the pocket undergoes a compression rate substantially identical to the rate of compression of the part of the joint extending beyond the free edge of the pocket.
  • the gas / product, product / exterior, and gas / exterior seals are good quality.
  • the step is formed by the seal sealing.
  • the seal has an internal annular portion of thinner, the recess being formed on one or the other of the faces of the seal according to the respective position of the seal relative to the pocket, to fixing means, and at the edge of the external container.
  • Such a seal can be obtained molding, or cutting.
  • the step is formed by a folded annular edge, or "flange" of the cup, constituting said fixing means.
  • the step is formed by a folded annular edge, or "rolled edge" of the outer container.
  • the latter is disposed on a part of its radial width between the free edge of the pocket and the means of fixation.
  • the seal is arranged on a part of its radial width between the free edge of the pocket and the rolled edge of the outer container.
  • the thickness of the step can be between 0.03 mm and 1 mm, and preferably between 0.1 mm and 0.5 mm.
  • Attaching the cup and an open edge of the pocket to an edge of the container exterior can be obtained by crimping or by swaging.
  • the aerosol device 1 represented in FIG. 1 comprises an external container 2 having a bottom 9, and the upper part 3 of which ends substantially in dome shape.
  • the dome ends with a rolled edge 4 delimiting an opening 5.
  • a flexible bag 6, containing the product to be dispensed P, is disposed at inside the container 2.
  • the annular chamber 8, between the pocket 6 and the external container 2 is filled with a propellant G.
  • a valve 10 is arranged in the bottom 9 of the outer container so as to allow the introduction of the propellant into the annular volume 8.
  • a disc-shaped part metallic, called "cup" 11 On the rolled edge 4 of the container, is mounted a disc-shaped part metallic, called "cup" 11.
  • the dispensing valve 12 is fixed generally in the center of the cup 11 and is thus in the axis of the aerosol pocket.
  • the valve 12 comprises a valve stem 14 whose actuation is generally carried out by means of a push button (not shown).
  • the cup 11 has a peripheral flange 13 intended to ensure the fixing of the cup 11 by expansion, that is to say by deforming the cup 11 from the inside, so as to press it against the internal surface of the dome 3 of the outer container 2, the deformation generated causing the tightening of the flange 13 on the rolled edge 4.
  • the seal between the flange 13 of the cup 11 and the rolled edge 4 of the container is generally provided by an elastic seal 20 which will be discussed in more detail later.
  • the pocket 6 is fixed at the crimping of the cup 11 on the rolled edge 4, the pocket being suspended by its neck in the axis of the aerosol can.
  • the pass of the pocket ends in its upper part with a rim 15 of dimension allowing on the one hand to be inserted in the collar 13 of the cup, and on the other hand part to rest on the rolled edge 4, via the seal 20.
  • the rim 15 of the pocket 6 is clamped between the flange 13 of the cup 11 and the rolled edge 4.
  • the assembly thus formed can be mounted in industry in a similar manner to that which is described in patent FR-A-2 310 287 to which reference was made above.
  • the valve is opened, either by insertion either by tilting, via a distribution head in the form of a pushbutton.
  • the pressure exerted by the propellant on the pocket acts and expels the product through the dispensing valve out of the pocket.
  • the "magnifying glass" in Figure 1, as well as Figures 2 and 3 illustrate more specifies how the gas / product / exterior seal is obtained according to a first embodiment.
  • the seal 20, as shown in the non-position mounted in Figure 2 is in the form of a flat annular element 21 comprising an inner annular part 23 of smaller thickness and a part outer annular 22 of greater thickness.
  • a step 24 is thus formed between the inner annular part 23 and the outer annular part 22.
  • the offset 24 is of height substantially equal to the thickness of the free edge 15 pocket 6.
  • the seal 20 rests directly on the rolled edge 4 of the container 2. Due to the presence of the offset 24, when the free edge 15 of the pocket 6 rests on the portion internal annular 23 of the seal 20, the free edge does not form any excess thickness by relative to the upper surface of the outer annular part 22.
  • the compression of seal 20 is substantially uniform over an annular zone extending both on one side of the recess 24, and on the other side of the offset 24.
  • the seals between the annular volume 8 and outside, between the annular volume 8 and the pocket 6, and between the pocket 6 and the exterior is remarkable.
  • the seal 20 is placed on the free edge 15 of the pocket 6.
  • the inner annular part 23 of the seal 20 is in direct contact with the flange 13 of the cup 11.
  • the seal 20 illustrated in FIG. 2 has been turned over.
  • the free edge does not form extra thickness compared to the lower surface of the outer annular part 22.
  • the compression of the seal 20 is substantially uniform over an area annular extending both on one side of the recess 24, and on the other side of the offset 24.
  • the seals obtained are similar to those obtained with the previous variant.
  • FIG. 5 illustrates a second embodiment of the device according to the invention.
  • the general configuration of device 1 is identical to that of device 1 of the Figure 1, and therefore does not require further description. It is note however that according to this embodiment, the cup 11 is mounted by external crimping of the flange 13 on the rolled edge 4.
  • the difference between the two embodiments relates to the realization of the seals, in particular to the position of the offset. This difference between the two embodiments will be described in more detail with reference to the "magnifying glass" in FIG. 5.
  • the seal 20 is of constant thickness.
  • the rolled edge 4 forms a step 32 separating a inner annular portion 30 of thinner thickness, of an annular portion outer 31 of greater thickness.
  • the difference in thickness corresponds substantially to the thickness of the free edge 15 of the pocket 6.
  • the compression of the seal 20 is substantially uniform over an area annular extending partly, on one side of the recess 32, and partly, of the other side of the offset 32.
  • the seals between the volume annular 8 and outside, between the annular volume 8 and the pocket 6, and between the pocket 6 and the outside, are remarkable.
  • FIG. 4 being a variant of Figure 6.
  • the seal 20 is, at rest, thick constant.
  • the rolled edge 4 of the outer container 2 is also thick constant.
  • the free edge 15 of the pocket 6 is disposed between the seal 20 and the edge rolled 4 of the outer container.
  • the collar 13 includes an annular part inner 40 connected to an outer annular part 41 by a recess 42 whose height is substantially equal to the thickness of the free edge 15 of the pocket 6.
  • a corresponding recess 43 exists inside the collar.
  • the recesses 42 and 43 can be obtained by forming the metal during the strikes the collar.
  • the seal 20 of thickness constant, is arranged between the free edge 15 of the pocket 6 and the rolled edge 4 of the outer container.
  • the free edge 15 of the pocket 6 is disposed between the seal 20 and the flange 13 of the cup 11, in abutment against the step 43.
  • the edge free 15 of the pocket 6 does not generate excess thickness relative to the surface internal of the collar 13.
  • the compression of the seal 20 is substantially uniform over an annular zone extending in part on one side of the step 43, and partly on the other side of step 43.
  • the results in terms of sealing are similar to those of the variant of FIG. 6.

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  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Medicinal Preparation (AREA)
  • Nozzles (AREA)

Abstract

A device for containing and dispensing a product may include a housing including an opening, and a container for containing a product. The container may be within the housing and may have an end portion defining an opening of the container. The device may also include a region in the housing for receiving a gas to pressurize the container. The region may be defined at least partially by an interior of the housing and an exterior of the container. The device may further include a cover member covering at least a substantial part of the opening of the housing. The end portion of the housing may be between a portion of the cover member and a portion of the housing. Additionally, the device may include a valve on the cover member configured to dispense product from the container and a seal compressed between the portion of the housing and the portion of the cover member. The device may also include a step-shaped region provided by at least one of a part of the seal, the portion of the housing, and the portion of the cover member. The step-shaped region may be adapted to enable substantially uniform compression of at least parts of the seal on opposing sides of the step-shaped region.

Description

La présente invention a trait à un dispositif de type "aérosol à poche". De tels récipients sont adaptés notamment au conditionnement de produits cosmétiques, notamment des produits capillaires, des produits d'hygiène corporelle, de maquillage ou de soin.The present invention relates to a device of the "pocket aerosol" type. Such containers are suitable in particular for packaging cosmetic products, including hair products, personal care products, makeup or skincare.

Les dispositifs de ce type sont des dispositifs propres à contenir et à distribuer sous pression des matières liquides ou pâteuses. Ils comportent un récipient externe rigide et un récipient interne souple, de préférence en aluminium ou en matière plastique, dont le bord supérieur est fixé au récipient externe. Ils comportent également une valve de distribution montée généralement sur une coupelle. Le fond du récipient externe comporte généralement une ouverture obturable destinée à l'introduction d'un agent propulseur dans le volume formé entre le récipient externe et le récipient interne.Devices of this type are devices capable of containing and dispensing under pressure of liquid or pasty materials. They have a container rigid outer and a flexible inner container, preferably made of aluminum or plastic material, the upper edge of which is fixed to the outer container. They also include a dispensing valve generally mounted on a cup. The bottom of the outer container usually has an opening closable for the introduction of a propellant into the volume formed between the outer container and the inner container.

Dans les appareils de ce genre, que l'on peut aussi appeler récipients aérosols à deux chambres, ou plus simplement "aérosol à poche", le récipient interne souple, ou "poche" contient généralement le produit de consommation, tandis que la chambre annulaire, comprise entre la poche et le récipient externe ou "boítier aérosol" est remplie d'un agent propulseur, c'est à dire d'un gaz sous pression. Pour distribuer du produit, on provoque l'ouverture de la valve de distribution, soit par enfoncement soit par basculement, via une tête de distribution sous forme d'un bouton poussoir. La pression exercée par l'agent propulseur sur la poche agit et chasse le produit par la valve de distribution hors de la poche.In devices of this kind, which can also be called aerosol containers two chambers, or more simply "pocket aerosol", the flexible internal container, or "pocket" usually contains the consumer product, while the annular chamber, between the pocket and the external container or "housing aerosol "is filled with a propellant, ie a gas under pressure. To dispense product, the dispensing valve is opened, i.e. by pushing in either by tilting, via a distribution head in the form of a pushbutton. The pressure exerted by the propellant on the pocket acts and expels the product through the dispensing valve out of the pocket.

Le récipient aérosol (récipient extérieur) comporte généralement un fond et un corps cylindrique, se terminant à son extrémité opposée au fond par une partie bombée ou "dôme" dont un bord libre, configuré sous forme d'un bord roulé, délimite une ouverture. Sur le bord roulé du récipient, est montée une pièce en forme de disque métallique, appelée "coupelle". La valve de distribution est fixée généralement au centre de la coupelle et se trouve ainsi dans l'axe de l'aérosol à poche. La coupelle présente une collerette périphérique destinée à assurer la fixation de la coupelle par sertissage sur le bord roulé du récipient extérieur. The aerosol container (outer container) generally has a bottom and a cylindrical body, ending at its end opposite the bottom by a part domed or "dome" including a free edge, configured as a rolled edge, defines an opening. On the rolled edge of the container, is mounted a piece in form of metallic disc, called "cup". The dispensing valve is attached generally in the center of the cup and is thus in the axis of the aerosol at poached. The cup has a peripheral flange intended to ensure the fixing of the cup by crimping on the rolled edge of the outer container.

Alternativement, le serrage de la coupelle sur le dôme se fait par dudgeonnage, c'est à dire en déformant la coupelle depuis l'intérieur, de manière à la plaquer contre la surface interne du dôme du récipient externe, la déformation engendrée provoquant le serrage de la collerette sur le bord roulé. L'étanchéité entre la collerette de la coupelle et le bord roulé du récipient est généralement assurée par un joint élastique.Alternatively, the tightening of the cup on the dome is done by swaging, that is to say by deforming the cup from the inside, so as to flatten it against the inner surface of the dome of the outer container, the deformation caused causing the flange to be tightened on the rolled edge. The seal between the flange of the cup and the rolled edge of the container is generally provided by an elastic seal.

Dans les aérosols à poche, la poche est généralement fixée au corps, au niveau du sertissage de la coupelle sur le bord roulé, la poche étant suspendue par son col dans l'axe du boítier aérosol. Le col de la poche se termine en sa partie supérieure par un rebord de dimension lui permettant d'une part de s'insérer dans la collerette de la coupelle, et d'autre part de s'appuyer sur le bord roulé du dôme. Au cours du sertissage ou dudgeonnage de la coupelle, le rebord de la poche se trouve enserré entre la collerette de la coupelle et le bord roulé. La précision du montage doit assurer l'étanchéité entre les trois éléments ; coupelle, poche, et bord roulé du récipient extérieur. L'étanchéité entre la poche et le récipient extérieur est généralement la plus délicate en raison de la fugacité du gaz propulseur, et en raison de la nature du matériau formant la poche. En effet, le matériau est généralement un matériau plastique, peu élastique, tel que du polypropylène ou polyéthylène.In bag aerosols, the bag is usually attached to the body at the level of the crimping of the cup on the rolled edge, the pocket being suspended by its neck in the axis of the aerosol can. The pocket neck ends in part upper by a rim of dimension allowing it on the one hand to be inserted in the collar of the cup, and on the other hand to rest on the rolled edge of the dome. During crimping or expanding the cup, the rim of the pocket found clamped between the cup collar and the rolled edge. The precision of mounting must seal between the three elements; cup, pocket, and rolled edge of the outer container. The seal between the pocket and the container exterior is generally the most delicate due to the transience of the gas propellant, and due to the nature of the material forming the pocket. Indeed, the material is generally a plastic material, not very elastic, such as polypropylene or polyethylene.

Dans la pratique, la présence du rebord de la poche entre le bord roulé du récipient et la collerette de la coupelle, génère une surépaisseur qui nuit à la déformation uniforme du joint d'étanchéité, lequel est généralement sous forme d'un élément annulaire plat, d'épaisseur constante. En effet, lorsqu'une portion annulaire interne du joint est disposée entre la collerette et le rebord de la poche, le joint est écrasé de manière satisfaisante dans ladite portion annulaire interne. Par contre, son écrasement est sensiblement plus faible pour sa partie externe, se prolongeant au delà du rebord de la poche, c'est à dire se trouvant directement entre la collerette et le bord roulé du récipient. De ce fait, l'étanchéité entre le gaz et l'extérieur laisse à désirer. Une telle configuration est représentée aux figures 19a et 19b de la demande WO99/16684. In practice, the presence of the rim of the pocket between the rolled edge of the container and the cup rim, generates an extra thickness which harms the uniform deformation of the seal, which is generally in the form a flat annular element, of constant thickness. Indeed, when a portion internal annular seal is disposed between the flange and the rim of the pocket, the seal is satisfactorily crushed in said internal annular portion. On the other hand, its crushing is appreciably weaker for its external part, extending beyond the rim of the pocket, i.e. lying directly between the collar and the rolled edge of the container. Therefore, the seal between the gas and the exterior leaves something to be desired. Such a configuration is shown in the figures 19a and 19b of application WO99 / 16684.

A l'inverse, lorsque, à la manière de ce qui est décrit dans le brevet FR-A-2 310 287, une portion annulaire interne du joint est disposée entre le bord roulé du bidon et le rebord de la poche, le joint est écrasé de manière satisfaisante dans ladite portion annulaire interne. Par contre, son écrasement est sensiblement plus faible pour sa partie externe, se prolongeant au delà du rebord de la poche, c'est à dire se trouvant directement entre la collerette et le bord roulé du récipient. De ce fait, l'étanchéité entre le produit et l'extérieur laisse à désirer. Le brevet mentionné ci-avant propose éventuellement de prévoir un second joint dans le fond de la collerette de la coupelle. Cette solution présente l'inconvénient d'augmenter le coût de revient global du dispositif aérosol.Conversely, when, in the manner described in patent FR-A-2 310 287, an internal annular portion of the seal is disposed between the rolled edge of the container and the rim of the pocket, the seal is satisfactorily crushed in said internal annular portion. On the other hand, its crushing is significantly more weak for its external part, extending beyond the rim of the pocket, it is say lying directly between the flange and the rolled edge of the container. From this fact, the seal between the product and the outside leaves something to be desired. The mentioned patent above possibly proposes to provide a second seal in the bottom of the cup flange. This solution has the disadvantage of increasing the overall cost of the aerosol device.

Aussi, est-ce un des objets de l'invention que de réaliser un dispositif du type précité, résolvant en tout ou partie les problèmes d'étanchéité discutés ci-avant en référence aux dispositifs conventionnels.It is therefore one of the objects of the invention to produce a device of the type mentioned above, solving all or part of the sealing problems discussed above in reference to conventional devices.

C'est en particulier un objet de l'invention que de fournir un dispositif aérosol à étanchéité améliorée, simple et économique à réaliser.It is in particular an object of the invention to provide an aerosol device for improved sealing, simple and economical to produce.

D'autres objets encore apparaítront dans la description détaillée qui suit.Still other objects will appear in the detailed description which follows.

Selon l'invention, ces objets sont atteints en réalisant un dispositif pour le conditionnement et la distribution sous pression d'un produit contenu dans une poche à parois souples en communication avec une valve, ledit réservoir étant disposé dans un récipient extérieur, un gaz propulseur étant contenu dans le volume formé entre le récipient extérieur et la poche, ladite valve étant montée sur une coupelle, des moyens permettant la fixation de la coupelle et d'un bord ouvert de la poche, sur un bord du récipient extérieur, un joint d'étanchéité permettant, lorsqu'il est comprimé entre les moyens de fixation et le bord du récipient, de former étanchéité entre le gaz, le produit, et l'extérieur, un décrochement étant formé, soit par le joint en position non comprimée, soit par les moyens de fixation, soit par le bord du récipient extérieur, de manière à assurer une compression sensiblement uniforme d'au moins une partie du joint d'étanchéité, de part et d'autre dudit décrochement. According to the invention, these objects are achieved by producing a device for packaging and distribution under pressure of a product contained in a pocket with flexible walls in communication with a valve, said tank being disposed in an external container, a propellant being contained in the volume formed between the outer container and the bag, said valve being mounted on a cup, means for fixing the cup and an open edge pocket, on one edge of the outer container, a seal allowing, when compressed between the fixing means and the edge of the container, form a seal between the gas, the product, and the outside, a setback being formed either by the seal in the uncompressed position or by the fixing means, either by the edge of the outer container, so as to ensure compression substantially uniform of at least part of the seal, both and on the other of said recess.

Ainsi, on réalise une bonne étanchéité entre le gaz, le produit, et l'extérieur, c'est à dire, premièrement entre le gaz et le produit, deuxièmement entre le gaz et l'extérieur, et troisièmement entre le produit et l'extérieur. En effet, en positionnant le bord libre de la poche sensiblement en regard du décrochement, le joint d'étanchéité, sur une zone annulaire s'étendant pour partie, d'un côté du décrochement, et pour partie, de l'autre côté du décrochement, est comprimé de façon sensiblement identique. La zone de compression du joint est plus ou moins large, l'essentiel étant que de chaque côté du décrochement, le joint puisse être comprimé de manière adéquate, sur au moins une partie de sa largeur, pour réaliser les trois étanchéités visées ci-avant.Thus, we achieve a good seal between the gas, the product, and the outside, it is say, firstly between gas and product, secondly between gas and outside, and thirdly between the product and the outside. Indeed, by positioning the free edge of the pocket substantially opposite the recess, the seal sealing, on an annular zone extending in part, on one side of the recess, and partly, on the other side of the recess, is compressed by substantially identical. The compression zone of the joint is more or less wide, the main thing being that on each side of the recess, the joint can be adequately compressed over at least part of its width to perform the three seals referred to above.

Avantageusement, une première portion du joint d'étanchéité est enserrée entre le bord du récipient extérieur et le bord ouvert de la poche, ou entre le bord ouvert de la poche et les moyens de fixation. Un tel recouvrement partiel du joint, du bord du récipient et des moyens de fixation, est garant d'une bonne étanchéité entre le gaz, le produit, et l'extérieur.Advantageously, a first portion of the seal is sandwiched between the edge of the outer container and the open edge of the pocket, or between the open edge of the pocket and the fixing means. Such partial covering of the joint, from the edge of the container and fixing means, guarantees a good seal between the gas, product, and exterior.

De préférence, la portion du joint d'étanchéité, enserrée entre le bord du récipient extérieur et le bord ouvert de la poche, ou entre le bord ouvert de la poche et les moyens de fixation, est constituée d'une partie annulaire intérieure dudit joint d'étanchéité.Preferably, the portion of the seal, sandwiched between the edge of the container outside and the open edge of the pocket, or between the open edge of the pocket and the fixing means, consists of an inner annular part of said seal sealing.

De manière préférentielle, le bord ouvert de la poche est disposé en regard du décrochement, et de préférence, sensiblement au contact de ce dernier. D'un tel positionnement, il résulte que la poche ne génère pas de surépaisseur, susceptible de modifier de façon sensible le degré de compression du joint d'étanchéité, lorsqu'il est pris en sandwich entre le récipient et la coupelle porte-valve.Preferably, the open edge of the pocket is arranged opposite the setback, and preferably substantially in contact with the latter. Of such positioning, it follows that the pocket does not generate any excess thickness, likely to significantly modify the degree of compression of the joint seal, when sandwiched between the container and the valve cup.

Avantageusement, et à l'inverse de certaines configurations décrites notamment dans le document WO99/16684 évoqué ci-avant, le joint d'étanchéité est formé d'un élément distinct de la poche. On assure une bien meilleure étanchéité. En outre, la fonction étanchéité étant réalisée par un élément distinct de la poche, il est possible d'utiliser des matériaux pour réaliser la poche, offrant une bien meilleure compatibilité avec certains produits à conditionner, notamment certains produits cosmétiques.Advantageously, and unlike certain configurations described in particular in document WO99 / 16684 mentioned above, the seal is formed a separate item from the pocket. It provides a much better seal. In in addition, the sealing function being carried out by an element separate from the pocket, it is possible to use materials to make the pocket, providing good better compatibility with certain products to be packaged, in particular some cosmetic products.

De préférence encore, une seconde portion du joint d'étanchéité est enserrée directement entre le bord du récipient et les moyens de fixation. Encore une fois, cette configuration est garante d'une bonne étanchéité entre le produit, le gaz, et l'extérieur.More preferably, a second portion of the seal is clamped directly between the edge of the container and the fixing means. Once again, this configuration guarantees a good seal between the product, the gas, and outside.

Avantageusement, la portion du joint d'étanchéité, enserrée directement entre le bord du récipient et les moyens de fixation, est formée d'une portion annulaire extérieure du joint d'étanchéité.Advantageously, the portion of the seal, sandwiched directly between the edge of the container and the fixing means, is formed of an annular portion outside of the seal.

De préférence, le décrochement est d'épaisseur sensiblement égale à l'épaisseur du bord ouvert de la poche. Ainsi, lorsque le bord libre de la poche est situé en regard de la zone en creux (soit du joint, soit de la collerette, soit du bord replié du récipient) formée par le décrochement, la partie du joint située en regard du bord de la poche subit un taux de compression sensiblement identique au taux de compression de la partie du joint s'étendant au delà du bord libre de la poche. De ce fait, les étanchéités gaz/produit, produit/extérieur, et gaz/extérieur, sont de bonne qualité.Preferably, the step is of thickness substantially equal to the thickness from the open edge of the pocket. Thus, when the free edge of the pocket is located in look of the hollow area (either of the joint, or of the flange, or of the folded edge of the container) formed by the recess, the part of the seal located opposite the edge of the pocket undergoes a compression rate substantially identical to the rate of compression of the part of the joint extending beyond the free edge of the pocket. Of this fact, the gas / product, product / exterior, and gas / exterior seals are good quality.

Selon un premier mode de réalisation, le décrochement est formé par le joint d'étanchéité. Ainsi, le joint d'étanchéité présente une portion annulaire interne de plus faible épaisseur, le décrochement étant formé sur l'une ou l'autre des faces du joint en fonction de la position respective du joint par rapport à la poche, aux moyens de fixation, et au bord du récipient externe. Un tel joint peut être obtenu de moulage, ou de découpe.According to a first embodiment, the step is formed by the seal sealing. Thus, the seal has an internal annular portion of thinner, the recess being formed on one or the other of the faces of the seal according to the respective position of the seal relative to the pocket, to fixing means, and at the edge of the external container. Such a seal can be obtained molding, or cutting.

Alternativement, le décrochement est formé par un bord annulaire replié, ou "collerette" de la coupelle, constituant lesdits moyens de fixation.Alternatively, the step is formed by a folded annular edge, or "flange" of the cup, constituting said fixing means.

Alternativement encore, le décrochement est formé par un bord annulaire replié, ou "bord roulé" du récipient extérieur. Alternatively again, the step is formed by a folded annular edge, or "rolled edge" of the outer container.

Selon un premier mode de positionnement du joint, celui-ci est disposé sur une partie de sa largeur radiale entre le bord libre de la poche et les moyens de fixation.According to a first mode of positioning the seal, the latter is disposed on a part of its radial width between the free edge of the pocket and the means of fixation.

Selon un second mode de positionnement du joint, celui-ci est disposé sur une partie de sa largeur radiale entre le bord libre de la poche et le bord roulé du récipient extérieur.According to a second mode of positioning the seal, it is arranged on a part of its radial width between the free edge of the pocket and the rolled edge of the outer container.

L'épaisseur du décrochement peut être comprise entre 0,03 mm et 1 mm, et de préférence, entre 0,1 mm et 0,5 mm.The thickness of the step can be between 0.03 mm and 1 mm, and preferably between 0.1 mm and 0.5 mm.

La fixation de la coupelle et d'un bord ouvert de la poche, sur un bord du récipient extérieur peut être obtenue par sertissage ou par dudgeonnage.Attaching the cup and an open edge of the pocket to an edge of the container exterior can be obtained by crimping or by swaging.

L'invention consiste, mises à part les dispositions exposées ci-dessus, en un certain nombre d'autres dispositions qui seront explicitées ci-après, à propos d'exemples de réalisation non limitatifs, décrits en référence aux figures annexées, parmi lesquelles :

  • les figures 1-3 illustrent un premier mode de réalisation du dispositif selon l'invention dans lequel le décrochement est formé par le joint d'étanchéité;
  • la figure 4 illustre un second mode de réalisation du dispositif selon l'invention dans lequel le décrochement est formé par la coupelle porte-valve ;
  • la figure 5 illustre un troisième mode de réalisation du dispositif selon l'invention dans lequel le décrochement est formé par le bord replié du récipient ; et
  • la figure 6 est une variante de la figure 4.
The invention consists, apart from the arrangements set out above, of a certain number of other arrangements which will be explained below, with reference to nonlimiting exemplary embodiments, described with reference to the appended figures, among which:
  • Figures 1-3 illustrate a first embodiment of the device according to the invention in which the recess is formed by the seal;
  • FIG. 4 illustrates a second embodiment of the device according to the invention in which the step is formed by the valve holder cup;
  • FIG. 5 illustrates a third embodiment of the device according to the invention in which the recess is formed by the folded edge of the container; and
  • FIG. 6 is a variant of FIG. 4.

Le dispositif aérosol 1 représenté à la figure 1 comprend un récipient extérieur 2 comportant un fond 9, et dont la partie supérieure 3 se termine sensiblement en forme de dôme. Le dôme se termine par un bord roulé 4 délimitant une ouverture 5. Une poche souple 6, contenant le produit à distribuer P, est disposée à l'intérieur du récipient 2. La chambre annulaire 8, comprise entre la poche 6 et le récipient externe 2 est remplie d'un agent propulseur G. Une valve 10 est disposée dans le fond 9 du récipient extérieur de manière à permettre l'introduction du propulseur dans le volume annulaire 8.The aerosol device 1 represented in FIG. 1 comprises an external container 2 having a bottom 9, and the upper part 3 of which ends substantially in dome shape. The dome ends with a rolled edge 4 delimiting an opening 5. A flexible bag 6, containing the product to be dispensed P, is disposed at inside the container 2. The annular chamber 8, between the pocket 6 and the external container 2 is filled with a propellant G. A valve 10 is arranged in the bottom 9 of the outer container so as to allow the introduction of the propellant into the annular volume 8.

Sur le bord roulé 4 du récipient, est montée une pièce en forme de disque métallique, appelée "coupelle" 11. La valve de distribution 12 est fixée généralement au centre de la coupelle 11 et se trouve ainsi dans l'axe de l'aérosol à poche. La valve 12 comprend une tige de valve 14 dont l'actionnement est généralement réalisé au moyen d'un bouton poussoir (non représenté).On the rolled edge 4 of the container, is mounted a disc-shaped part metallic, called "cup" 11. The dispensing valve 12 is fixed generally in the center of the cup 11 and is thus in the axis of the aerosol pocket. The valve 12 comprises a valve stem 14 whose actuation is generally carried out by means of a push button (not shown).

La coupelle 11 présente une collerette périphérique 13 destinée à assurer la fixation de la coupelle 11 par dudgeonnage, c'est à dire en déformant la coupelle 11 depuis l'intérieur, de manière à la plaquer contre la surface interne du dôme 3 du récipient externe 2, la déformation engendrée provoquant le serrage de la collerette 13 sur le bord roulé 4. L'étanchéité entre la collerette 13 de la coupelle 11 et le bord roulé 4 du récipient est généralement assurée par un joint élastique 20 dont on parlera plus en détail par la suite.The cup 11 has a peripheral flange 13 intended to ensure the fixing of the cup 11 by expansion, that is to say by deforming the cup 11 from the inside, so as to press it against the internal surface of the dome 3 of the outer container 2, the deformation generated causing the tightening of the flange 13 on the rolled edge 4. The seal between the flange 13 of the cup 11 and the rolled edge 4 of the container is generally provided by an elastic seal 20 which will be discussed in more detail later.

La poche 6 est fixée au niveau du sertissage de la coupelle 11 sur le bord roulé 4, la poche étant suspendue par son col dans l'axe du boítier aérosol. Le col de la poche se termine en sa partie supérieure par un rebord 15 de dimension lui permettant d'une part de s'insérer dans la collerette 13 de la coupelle, et d'autre part de s'appuyer sur le bord roulé 4, via le joint 20. Au cours du sertissage de la coupelle 11, le rebord 15 de la poche 6 se trouve enserré entre la collerette 13 de la coupelle 11 et le bord roulé 4.The pocket 6 is fixed at the crimping of the cup 11 on the rolled edge 4, the pocket being suspended by its neck in the axis of the aerosol can. The pass of the pocket ends in its upper part with a rim 15 of dimension allowing on the one hand to be inserted in the collar 13 of the cup, and on the other hand part to rest on the rolled edge 4, via the seal 20. During the crimping of the cup 11, the rim 15 of the pocket 6 is clamped between the flange 13 of the cup 11 and the rolled edge 4.

L'ensemble ainsi formé peut être monté en industriel de manière similaire à ce qui est décrit dans le brevet FR-A-2 310 287 auquel il a été fait référence ci-avant.The assembly thus formed can be mounted in industry in a similar manner to that which is described in patent FR-A-2 310 287 to which reference was made above.

Pour distribuer du produit, on provoque l'ouverture de la valve, soit par enfoncement soit par basculement, via une tête de distribution sous forme d'un bouton poussoir. La pression exercée par l'agent propulseur sur la poche agit et chasse le produit par la valve de distribution hors de la poche. To dispense product, the valve is opened, either by insertion either by tilting, via a distribution head in the form of a pushbutton. The pressure exerted by the propellant on the pocket acts and expels the product through the dispensing valve out of the pocket.

La "loupe" de la figure 1, ainsi que les figures 2 et 3 illustrent de manière plus précise comment l'étanchéité gaz/produit/extérieur est obtenue selon un premier mode de réalisation.The "magnifying glass" in Figure 1, as well as Figures 2 and 3 illustrate more specifies how the gas / product / exterior seal is obtained according to a first embodiment.

Selon ce mode de réalisation, le joint 20, tel que représenté en position non montée à la figure 2 se présente sous forme d'un élément annulaire plat 21 comportant une partie annulaire intérieure 23 de plus faible épaisseur et une partie annulaire extérieure 22 d'épaisseur plus importante. Un décrochement 24 est ainsi formé entre la partie annulaire intérieure 23 et la partie annulaire extérieure 22. Le décrochement 24 est de hauteur sensiblement égale à l'épaisseur du bord libre 15 de la poche 6.According to this embodiment, the seal 20, as shown in the non-position mounted in Figure 2 is in the form of a flat annular element 21 comprising an inner annular part 23 of smaller thickness and a part outer annular 22 of greater thickness. A step 24 is thus formed between the inner annular part 23 and the outer annular part 22. The offset 24 is of height substantially equal to the thickness of the free edge 15 pocket 6.

Dans la variante illustrée par la "loupe" de la figure 1, le joint 20 repose directement sur le bord roulé 4 du récipient 2. En raison de la présence du décrochement 24, lorsque le bord libre 15 de la poche 6 repose sur la portion annulaire interne 23 du joint 20, le bord libre ne forme pas de surépaisseur par rapport à la surface supérieure de la partie annulaire extérieure 22. Ainsi, lors du serrage de la collerette 13 sur le bord roulé 4, tel que représenté à la figure 1, la compression du joint 20 est sensiblement uniforme sur une zone annulaire s'étendant à la fois d'un côté du décrochement 24, et de l'autre côté du décrochement 24. De ce fait, les étanchéités entre le volume annulaire 8 et l'extérieur, entre le volume annulaire 8 et la poche 6, et entre la poche 6 et l'extérieur, sont remarquables.In the variant illustrated by the "magnifying glass" in FIG. 1, the seal 20 rests directly on the rolled edge 4 of the container 2. Due to the presence of the offset 24, when the free edge 15 of the pocket 6 rests on the portion internal annular 23 of the seal 20, the free edge does not form any excess thickness by relative to the upper surface of the outer annular part 22. Thus, when clamping the flange 13 on the rolled edge 4, as shown in Figure 1, the compression of seal 20 is substantially uniform over an annular zone extending both on one side of the recess 24, and on the other side of the offset 24. As a result, the seals between the annular volume 8 and outside, between the annular volume 8 and the pocket 6, and between the pocket 6 and the exterior is remarkable.

Dans la variante illustrée par la "loupe" de la figure 3, le joint 20 est disposé sur le bord libre 15 de la poche 6. Ainsi, la partie annulaire intérieure 23 du joint 20 est en contact directement avec la collerette 13 de la coupelle 11. Autrement dit, par rapport à la "loupe" de la figure 1, le joint 20 illustré à la figure 2 a été retourné. De la même manière que pour le mode de réalisation précédent, en raison de la présence du décrochement 24, lorsque la portion annulaire interne 23 du joint 20 repose sur le bord libre 15 de la poche 6, le bord libre ne forme pas de surépaisseur par rapport à la surface inférieure de la partie annulaire extérieure 22. Ainsi, lors du serrage de la collerette 13 sur le bord roulé 4, tel que représenté à la figure 3, la compression du joint 20 est sensiblement uniforme sur une zone annulaire s'étendant à la fois d'un côté du décrochement 24, et de l'autre côté du décrochement 24. Les étanchéités obtenues sont similaires à celles obtenues avec la variante précédente.In the variant illustrated by the "magnifying glass" in FIG. 3, the seal 20 is placed on the free edge 15 of the pocket 6. Thus, the inner annular part 23 of the seal 20 is in direct contact with the flange 13 of the cup 11. In other words, by compared to the "magnifying glass" of FIG. 1, the seal 20 illustrated in FIG. 2 has been turned over. Of the same way as for the previous embodiment, due to the presence of the recess 24, when the internal annular portion 23 of the seal 20 rests on the free edge 15 of the pocket 6, the free edge does not form extra thickness compared to the lower surface of the outer annular part 22. Thus, when the flange 13 is tightened on the rolled edge 4, as shown in FIG. 3, the compression of the seal 20 is substantially uniform over an area annular extending both on one side of the recess 24, and on the other side of the offset 24. The seals obtained are similar to those obtained with the previous variant.

La figure 5 illustre un second mode de réalisation du dispositif selon l'invention. La configuration générale du dispositif 1 est identique à celle du dispositif 1 de la figure 1, et par conséquent, ne nécessite pas de description supplémentaire. Il est à noter toutefois que selon ce mode de réalisation, la coupelle 11 est montée par sertissage extérieur de la collerette 13 sur le bord roulé 4. La différence entre les deux modes de réalisation tient à la réalisation des étanchéités, en particulier à la position du décrochement. Cette différence entre les deux modes de réalisation va être décrite plus en détail en référence à la "loupe" de la figure 5.FIG. 5 illustrates a second embodiment of the device according to the invention. The general configuration of device 1 is identical to that of device 1 of the Figure 1, and therefore does not require further description. It is note however that according to this embodiment, the cup 11 is mounted by external crimping of the flange 13 on the rolled edge 4. The difference between the two embodiments relates to the realization of the seals, in particular to the position of the offset. This difference between the two embodiments will be described in more detail with reference to the "magnifying glass" in FIG. 5.

Ainsi qu'il apparaít plus clairement à la "loupe" de la figure 5, le joint 20 est d'épaisseur constante. Le bord roulé 4 forme un décrochement 32 séparant une portion annulaire intérieure 30 de plus faible épaisseur, d'une portion annulaire extérieure 31 d'épaisseur plus importante. La différence d'épaisseur correspond sensiblement à l'épaisseur du bord libre 15 de la poche 6. Ainsi, lorsque le bord libre 15 de la poche 6 repose sur la portion annulaire intérieure 30 du bord roulé 4, sensiblement en butée contre le décrochement 32, il ne forme pas de surépaisseur par rapport à la surface supérieure de la portion annulaire extérieure. Ainsi, lors du sertissage de la collerette 13 sur le bord roulé 4, tel que représenté à la figure 5, la compression du joint 20 est sensiblement uniforme sur une zone annulaire s'étendant pour partie, d'un côté du décrochement 32, et pour partie, de l'autre côté du décrochement 32. De ce fait, les étanchéités entre le volume annulaire 8 et l'extérieur, entre le volume annulaire 8 et la poche 6, et entre la poche 6 et l'extérieur, sont remarquables.As it appears more clearly with the "magnifying glass" of Figure 5, the seal 20 is of constant thickness. The rolled edge 4 forms a step 32 separating a inner annular portion 30 of thinner thickness, of an annular portion outer 31 of greater thickness. The difference in thickness corresponds substantially to the thickness of the free edge 15 of the pocket 6. Thus, when the edge free 15 of the pocket 6 rests on the inner annular portion 30 of the rolled edge 4, substantially in abutment against the setback 32, it does not form extra thickness relative to the upper surface of the outer annular portion. Thus, during the crimping of the flange 13 on the rolled edge 4, as shown in FIG. 5, the compression of the seal 20 is substantially uniform over an area annular extending partly, on one side of the recess 32, and partly, of the other side of the offset 32. As a result, the seals between the volume annular 8 and outside, between the annular volume 8 and the pocket 6, and between the pocket 6 and the outside, are remarkable.

Les figures 4 et 6 auxquelles il est maintenant fait référence, illustrent un troisième mode de réalisation du dispositif selon l'invention, la figure 4 étant une variante de la figure 6.Figures 4 and 6 to which reference is now made illustrate a third embodiment of the device according to the invention, FIG. 4 being a variant of Figure 6.

Dans le mode de réalisation de la figure 6, le joint 20 est, au repos, d'épaisseur constante. Le bord roulé 4 du récipient extérieur 2 est également d'épaisseur constante. Le bord libre 15 de la poche 6 est disposé entre le joint 20 et le bord roulé 4 du récipient extérieur. La collerette 13 comprend une partie annulaire intérieure 40 reliée à une partie annulaire extérieure 41 par un décrochement 42 dont la hauteur est sensiblement égale à l'épaisseur du bord libre 15 de la poche 6. Un décrochement correspondant 43 existe à l'intérieur de la collerette. Les décrochements 42 et 43 peuvent être obtenus par formage du métal lors de la frappe de la collerette. Ainsi, lors du sertissage de la collerette 13 sur le bord roulé 4, tel que représenté à la figure 6, et en raison de la présence des décrochements 42 et 43, la compression du joint 20 est sensiblement uniforme sur une zone annulaire s'étendant pour partie, d'un côté du décrochement 43, et pour partie, de l'autre côté du décrochement 43. De ce fait, les étanchéités requises sont bonnes.In the embodiment of Figure 6, the seal 20 is, at rest, thick constant. The rolled edge 4 of the outer container 2 is also thick constant. The free edge 15 of the pocket 6 is disposed between the seal 20 and the edge rolled 4 of the outer container. The collar 13 includes an annular part inner 40 connected to an outer annular part 41 by a recess 42 whose height is substantially equal to the thickness of the free edge 15 of the pocket 6. A corresponding recess 43 exists inside the collar. The recesses 42 and 43 can be obtained by forming the metal during the strikes the collar. Thus, during the crimping of the flange 13 on the rolled edge 4, as shown in Figure 6, and due to the presence of the recesses 42 and 43, the compression of the seal 20 is substantially uniform over an area annular extending partly, on one side of the recess 43, and partly, of the other side of the recess 43. As a result, the required seals are good.

Dans la variante illustrée à la "loupe" de la figure 4, le joint 20, d'épaisseur constante, est disposé entre le bord libre 15 de la poche 6 et le bord roulé 4 du récipient extérieur. Le bord libre 15 de la poche 6 est disposé entre le joint 20 et la collerette 13 de la coupelle 11, en butée contre le décrochement 43. Ainsi, le bord libre 15 de la poche 6 ne génère pas de surépaisseur par rapport à la surface interne de la collerette 13. De ce fait, la compression du joint 20 est sensiblement uniforme sur une zone annulaire s'étendant pour partie, d'un côté du décrochement 43, et pour partie, de l'autre côté du décrochement 43. Les résultats en terme d'étanchéité sont similaires à ceux de la variante de la figure 6.In the variant illustrated with the "magnifying glass" of FIG. 4, the seal 20, of thickness constant, is arranged between the free edge 15 of the pocket 6 and the rolled edge 4 of the outer container. The free edge 15 of the pocket 6 is disposed between the seal 20 and the flange 13 of the cup 11, in abutment against the step 43. Thus, the edge free 15 of the pocket 6 does not generate excess thickness relative to the surface internal of the collar 13. As a result, the compression of the seal 20 is substantially uniform over an annular zone extending in part on one side of the step 43, and partly on the other side of step 43. The results in terms of sealing are similar to those of the variant of FIG. 6.

Dans la description détaillée qui précède, il a été fait référence à des modes de réalisation préférés de l'invention. Il est évident que des variantes peuvent y être apportées sans s'écarter de l'esprit de l'invention telle que revendiquée ci-après.In the foregoing detailed description, reference has been made to modes of preferred embodiments of the invention. Obviously there may be variations made without departing from the spirit of the invention as claimed below.

Claims (17)

Dispositif (1) pour le conditionnement et la distribution sous pression d'un produit (P) contenu dans une poche à parois souples (6) en communication avec une valve (12), ledit réservoir (6) étant disposé dans un récipient extérieur (2), un gaz propulseur (G) étant contenu dans le volume (8) formé entre le récipient extérieur (2) et la poche (6), ladite valve (12) étant montée sur une coupelle (11), des moyens (13) permettant la fixation de la coupelle (11) et d'un bord ouvert (15) de la poche (6), sur un bord (4) du récipient extérieur, un joint d'étanchéité (20) permettant, lorsqu'il est comprimé entre les moyens de fixation (13) et le bord (4) du récipient, de former étanchéité entre le gaz, le produit, et l'extérieur, un décrochement (24, 32, 43) étant formé, soit par le joint (20) en position non comprimée, soit par les moyens de fixation (13), soit par le bord (4) du récipient extérieur de manière à assurer une compression sensiblement uniforme d'au moins une partie du joint d'étanchéité (20), de part et d'autre dudit décrochement (24, 32, 42, 43).Device (1) for the packaging and distribution under pressure of a product (P) contained in a pocket with flexible walls (6) in communication with a valve (12), said reservoir (6) being disposed in an external container (2), a propellant (G) being contained in the volume (8) formed between the container outside (2) and the pocket (6), said valve (12) being mounted on a cup (11), means (13) for fixing the cup (11) and an open edge (15) of the pocket (6), on an edge (4) of the outer container, a seal (20) allowing, when compressed between the fixing means (13) and the edge (4) of the container, to form a seal between the gas, the product, and the outside, a recess (24, 32, 43) being formed, either by the seal (20) in the non-position compressed either by the fixing means (13) or by the edge (4) of the container exterior so as to ensure a substantially uniform compression of at least at least part of the seal (20), on either side of said recess (24, 32, 42, 43). Dispositif selon la revendication 1 caractérisé en ce qu'une partie au moins (23) du joint d'étanchéité (20) est enserrée entre le bord (4) du récipient extérieur et le bord ouvert (15) de la poche (6), ou entre le bord ouvert (15) de la poche (6) et les moyens de fixation (13).Device according to claim 1 characterized in that at least part (23) of the seal (20) is clamped between the edge (4) of the outer container and the open edge (15) of the pocket (6), or between the open edge (15) of the pocket (6) and the fixing means (13). Dispositif selon la revendication 2 caractérisé en ce que la partie (23) du joint d'étanchéité (20), enserrée entre le bord (4) du récipient extérieur et le bord ouvert (15) de la poche (6), ou entre le bord ouvert (15) de la poche (6) et les moyens de fixation (13), est constituée d'une partie annulaire intérieure (23) dudit joint d'étanchéité (20).Device according to claim 2 characterized in that the part (23) of the seal seal (20), clamped between the edge (4) of the outer container and the open edge (15) of the pocket (6), or between the open edge (15) of the pocket (6) and the means of fixing (13), consists of an inner annular part (23) of said seal sealing (20). Dispositif selon l'une quelconque des revendications 1 à 3 caractérisé en ce que le bord ouvert (15) de la poche (6) est disposé en regard du décrochement (24, 32, 43), et de préférence, sensiblement au contact de ce dernier. Device according to any one of Claims 1 to 3, characterized in that that the open edge (15) of the pocket (6) is disposed opposite the recess (24, 32, 43), and preferably substantially in contact with the latter. Dispositif selon l'une quelconque des revendications 1 à 4 caractérisé en ce que le joint d'étanchéité (20) est formé d'un élément distinct de la poche (6).Device according to any one of Claims 1 to 4, characterized in that that the seal (20) is formed from a separate element from the pocket (6). Dispositif selon l'une quelconque des revendications 1 à 5 caractérisé en ce qu'une partie (22) du joint d'étanchéité (20) est enserrée directement entre le bord (4) du récipient et les moyens de fixation (13).Device according to any one of Claims 1 to 5, characterized in that that a part (22) of the seal (20) is clamped directly between the edge (4) of the container and the fixing means (13). Dispositif selon l'une quelconque des revendications 1 à 6 caractérisé en que ladite partie (22) du joint d'étanchéité (20), enserrée directement entre le bord (4) du récipient et les moyens de fixation (13), est formée d'une partie annulaire extérieure (22) du joint d'étanchéité (20).Device according to any one of Claims 1 to 6, characterized in that said part (22) of the seal (20), sandwiched directly between the edge (4) of the container and the fixing means (13), is formed of an annular part outside (22) of the seal (20). Dispositif (1) selon l'une quelconque des revendications 1 à 7 caractérisé en ce que le décrochement (24, 32, 43) est d'épaisseur sensiblement égale à l'épaisseur du bord ouvert (15) de la poche (6).Device (1) according to any one of claims 1 to 7 characterized in that the step (24, 32, 43) is of thickness substantially equal to the thickness of the open edge (15) of the pocket (6). Dispositif (1) selon l'une quelconque des revendications 1 à 8, caractérisé en ce que le décrochement (24) est formé par le joint d'étanchéité (20).Device (1) according to any one of claims 1 to 8, characterized in what the recess (24) is formed by the seal (20). Dispositif (1) selon la revendication 9 caractérisé en ce que le joint (20) est de forme annulaire, une portion annulaire intérieure (23) dudit joint étant d'épaisseur plus faible que l'épaisseur d'une portion annulaire extérieure (22) du joint.Device (1) according to claim 9 characterized in that the seal (20) is annular in shape, an inner annular portion (23) of said seal being thicker than the thickness of an outer annular portion (22) of the attached. Dispositif (1) selon l'une quelconque des revendications 1 à 8 caractérisé en ce que le décrochement (43) est formé par un bord annulaire (13) replié de la coupelle (11), constituant lesdits moyens de fixation.Device (1) according to any one of claims 1 to 8 characterized in that the recess (43) is formed by an annular edge (13) folded from the cup (11), constituting said fixing means. Dispositif (1) selon l'une quelconque des revendications 1 à 8 caractérisé en ce que le décrochement (32) est formé par un bord annulaire replié (4) du récipient extérieur (2). Device (1) according to any one of claims 1 to 8 characterized in that the recess (32) is formed by a folded annular edge (4) of the outer container (2). Dispositif (1) selon la revendication 2 caractérisé en ce que le joint d'étanchéité (20) est disposé sur une partie (23) de sa largeur radiale entre le bord libre (15) de la poche (6) et les moyens de fixation (13).Device (1) according to claim 2 characterized in that the seal sealing (20) is arranged over a part (23) of its radial width between the edge free (15) of the pocket (6) and the fixing means (13). Dispositif (1) selon la revendication 2 caractérisé en ce que le joint d'étanchéité (20) est disposé sur une partie (23) de sa largeur radiale entre le bord libre (15) de la poche (6) et le bord (4) du récipient extérieur (2).Device (1) according to claim 2 characterized in that the seal sealing (20) is arranged over a part (23) of its radial width between the edge free (15) of the pocket (6) and the edge (4) of the outer container (2). Dispositif (1) selon l'une quelconque des revendications précédentes caractérisé en ce que l'épaisseur du décrochement (24, 32, 43) est comprise entre 0,03 mm et 1 mm, et de préférence, entre 0,1 mm et 0,5 mm.Device (1) according to any one of the preceding claims characterized in that the thickness of the step (24, 32, 43) is between 0.03 mm and 1 mm, and preferably between 0.1 mm and 0.5 mm. Dispositif (1) selon l'une quelconque des revendications 1 à 15 caractérisé en ce que la fixation de la coupelle (11) et du bord ouvert (15) de la poche (6), sur le bord (4) du récipient extérieur (2) est obtenue par sertissage.Device (1) according to any one of claims 1 to 15 characterized in that the fixing of the cup (11) and of the open edge (15) of the pocket (6), on the edge (4) of the outer container (2) is obtained by crimping. Dispositif (1) selon l'une quelconque des revendications 1 à 16 caractérisé en ce que la fixation de la coupelle (11) et du bord ouvert (15) de la poche (6), sur un bord (4) du récipient extérieur (2) est obtenue par dudgeonnage.Device (1) according to any one of claims 1 to 16 characterized in what fixing the cup (11) and the open edge (15) of the pocket (6), on a edge (4) of the outer container (2) is obtained by expansion.
EP01400084A 2000-02-07 2001-01-12 Aerosol container with pouch and improved gasket Expired - Lifetime EP1122190B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0001489 2000-02-07
FR0001489A FR2804665B1 (en) 2000-02-07 2000-02-07 POCKET AEROSOL WITH IMPROVED SEALING

Publications (2)

Publication Number Publication Date
EP1122190A1 true EP1122190A1 (en) 2001-08-08
EP1122190B1 EP1122190B1 (en) 2007-04-04

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EP01400084A Expired - Lifetime EP1122190B1 (en) 2000-02-07 2001-01-12 Aerosol container with pouch and improved gasket

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US (1) US6332563B2 (en)
EP (1) EP1122190B1 (en)
JP (1) JP2001253483A (en)
AT (1) ATE358640T1 (en)
CA (1) CA2334417C (en)
DE (1) DE60127601T2 (en)
ES (1) ES2283382T3 (en)
FR (1) FR2804665B1 (en)

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US6332563B2 (en) 2001-12-25
ATE358640T1 (en) 2007-04-15
JP2001253483A (en) 2001-09-18
FR2804665A1 (en) 2001-08-10
DE60127601D1 (en) 2007-05-16
FR2804665B1 (en) 2002-06-14
CA2334417A1 (en) 2001-08-07
ES2283382T3 (en) 2007-11-01
DE60127601T2 (en) 2007-12-13
EP1122190B1 (en) 2007-04-04
CA2334417C (en) 2005-11-15
US20010025857A1 (en) 2001-10-04

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