EP4069444A1 - Depressurisation and drainage device for aerosol can - Google Patents

Depressurisation and drainage device for aerosol can

Info

Publication number
EP4069444A1
EP4069444A1 EP20823898.0A EP20823898A EP4069444A1 EP 4069444 A1 EP4069444 A1 EP 4069444A1 EP 20823898 A EP20823898 A EP 20823898A EP 4069444 A1 EP4069444 A1 EP 4069444A1
Authority
EP
European Patent Office
Prior art keywords
base
emptying
depressurizing
aerosol
punch
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.)
Pending
Application number
EP20823898.0A
Other languages
German (de)
French (fr)
Inventor
Claude Bernard Michelot
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.)
Technima Holding SAS
Original Assignee
Technima Holding SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Technima Holding SAS filed Critical Technima Holding SAS
Publication of EP4069444A1 publication Critical patent/EP4069444A1/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B2101/00—Type of solid waste
    • B09B2101/02—Gases or liquids enclosed in discarded articles, e.g. aerosol cans or cooling systems of refrigerators

Definitions

  • the invention falls within the field of recycling aerosol cans and provides a depressurization and emptying device for such housings.
  • the casing is a waste essentially composed of metal, if we take the precaution, in sorting operations, to remove the diffuser part itself in recyclable PP.
  • Document DE 1 993 25 19 A1 provides a machine provided with an aerosol canister emptying device which comprises a maneuverable needle for piercing the bottom of an aerosol canister, a base constituting a sealing surface on which the bottoms of the aerosol can rests. aerosol cans which are retained by clamping jaws.
  • This known solution is not easily transposable for a simple manual device due to the fact that the needle requires guidance during its movement and that the housing must be held firmly on the bearing surface before drilling.
  • This device makes it necessary to equip the bottom of the case with an elastomeric insert, which makes manufacturing more expensive.
  • Document US 6041 506 A describes a single punch device which must be removed by hand from the bottom of a housing after drilling. No maintenance of the housing in a vertical position and no means of retaining gas or residue is provided during drilling.
  • the present application proposes a simple device that can be used manually by an operator to depressurize and / or empty traditional aerosol cans and more specifically proposes a device for depressurizing and emptying an aerosol housing with a concave bottom , which comprises a punch and a base provided with an internal cylindrical wall for receiving a lower part of the aerosol housing with a concave bottom, which further comprises inside the cylindrical wall a dome provided with perforated sectors connected to a lower part of the cylindrical wall of the base and set back from the top of the cylindrical wall, said dome comprising at its top a tubular housing receiving said punch and comprising spring means projecting from the profile of the dome, said spring means being configured to hold the bottom of said housing above the punch in the absence of force applied to the housing to push it into the base.
  • This device allows to keep the vertical housing in the base in a position away from the punch thanks to the spring means, to push the punch into the bottom of the housing by crushing the spring means and then to bring out the punch from the bottom of the housing a once pierced by releasing the force on the spring means which resume their shape and push back the housing, the housing remaining held vertical by the cylindrical wall.
  • the spring means are leaf spring positioned between arches separated by the perforated sectors.
  • the leaf springs are generally triangular in shape. They are advantageously curved and extend above the arches. They may include a base resulting from an annular flange connecting the dome to the cylindrical wall. To facilitate their curvature under a case back they can be provided with a rounded tip directed towards the central axis of the cylindrical wall.
  • the internal cylindrical wall of the base can advantageously be provided with longitudinal ribs, that is to say parallel to the axis of the cylinder defined by the wall, for guiding the aerosol canister.
  • the base is mounted on a base provided with a bottom and a peripheral wall forming a container for collecting residues contained in said housing and a degassing space of the aerosol housing.
  • the preferably removable base and plinth can be easily cleaned.
  • the base preferably comprises an outer skirt surrounding the inner wall and a free end of which is received inside said peripheral wall of the base.
  • the base advantageously comprises an annular rim surrounding said peripheral wall, the latter comprising bridges for limiting the depression of the skirt of the base in the base.
  • the bridges advantageously form spaces for receiving latching terminations of the spring tabs which engage under an overhang of said annular rim in said spaces.
  • the annular rim is extended by stabilization wings of the base on a support such as a table or a workbench.
  • the skirt can be connected to the cylindrical wall of the base by a collar at an upper end of said wall.
  • the punch advantageously comprises a barrel received in said tubular housing.
  • the punch is thus removable and interchangeable. It preferably comprises a pyramidal point protruding from the top of the dome when the punch is mounted in the base. The pyramidal point allows make a clear opening in the bottom of the case.
  • the punch here is devoid of a channel.
  • FIG. 1 shows an aerosol can and an application device in side perspective
  • FIG. 2 shows part of the device of Figure 1 in three-quarter perspective below
  • FIG. 3 shows a demand base in perspective from above
  • FIG. 4 shows an exploded view of an on-demand device
  • FIG. 5 shows a punch according to the present application.
  • the aerosol housing 10 is seen from below which allows to see its concave bottom 11.
  • the housing and the bottom are made in the traditional way of sheet metal and are designed for example to withstand internal pressure of the order of 12 to 15 bars.
  • these housings are filled with a pressure of the order of 3 bars to 4 bars and, at the end of use, the residual pressure which must be evacuated from the housing is even lower.
  • a punch 20 which will pierce the bottom of the housing and the base 30 which carries it.
  • the base is shown in perspective from above in FIG. 3 and is provided with an internal cylindrical wall 31 for receiving the lower part of the aerosol housing with a concave bottom. At the bottom of this wall is a dome provided with arches 32 separated by perforated sectors 33.
  • the dome is connected to a lower part of the cylindrical wall of the base by a flange 36 internal to the cylindrical wall.
  • leaf springs 34 projecting from the profile of the dome. These leaf springs are configured to hold the bottom 11 of the casing 10 above the punch when the casing is placed in the base, the operator having to press the casing into the base and bend the leaf springs so that the punch s 'pushes into the bottom of the case. Once the bottom is pierced, the operator can release the housing which rises under the action of the spring blades 34 which allows residual gases and product residues to escape through the perforated sectors 33.
  • the leaf spring can be replaced by other spring means such as for example a spiral spring around the dome.
  • the leaf springs 34 are according to the example of generally curved triangular shape, provided with a base resulting from the annular flange 36 connecting the dome to the cylindrical wall 31 and provided with a rounded tip 34a directed towards the axis central of the cylindrical wall.
  • the cylindrical wall has longitudinal grooves 37 which reduces the risk of the housing jamming against the wall.
  • the base comprises an outer skirt 38 connected to the upper end of the cylindrical wall 31 by a flange 60. This skirt forms an outer cover of the base.
  • the base is mounted on a base 40 provided with a bottom 41 and a peripheral wall 42 forming a container for collecting residues contained in said housing and a degassing space of the aerosol housing.
  • the skirt 38 is received inside said peripheral wall 42 of the base, which closes the part of the base forming the reservoir.
  • the skirt is provided with spring tongues 39 provided with latching ends 39a each provided with a shoulder which hooks under an overhang formed by a perforated part 43a under an annular rim 43 in part. top of the plinth which snaps the base onto the plinth.
  • the annular rim of the base is extended by wings 45 for stabilizing the base on a support.
  • the wings are pierced with holes 46 for fixing the base on a support.
  • the base further comprises an outer wall 47 which surrounds the container 41, 42.

Landscapes

  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Abstract

A device for depressurising and draining an aerosol can with a concave base, which device comprises a punch (20) and a base (30) provided with an internal cylindrical wall (31) for accommodating a lower part of the aerosol can with a concave base and a dome provided with perforated sectors (33) connected to a lower part of the cylindrical wall of the base, said dome comprising, at the apex thereof, a tubular housing (35) accommodating said punch and comprising spring means (34) exceeding the profile of the dome, said spring means (34) being configured to hold the base of said can above the punch in the absence of any force applied onto the can in order to push it into the base.

Description

DISPOSITIF DE DEPRESSURISATION ET DE VIDANGE POUR DEPRESSURIZATION AND DRAINING DEVICE FOR
BOITIER AEROSOL AEROSOL BOX
Domaine technique Technical area
[0001] L’invention relève du domaine du recyclage des boîtiers aérosols et propose un dispositif de dépressurisation et de vidange pour de tels boîtiers. The invention falls within the field of recycling aerosol cans and provides a depressurization and emptying device for such housings.
Technique antérieure Prior art
[0002] La technique des boîtiers aérosols jetables après usage renfermant un produit à pulvériser et un gaz propulseur est largement répandue. The technique of disposable aerosol cans after use containing a product to be sprayed and a propellant gas is widely used.
[0003] Pour les produits techniques conditionnés en boitiers générateurs d'aérosols (communément appelés aérosols) notamment des peintures, un marché professionnel est très important. [0003] For technical products packaged in aerosol generator boxes (commonly called aerosols), in particular paints, a professional market is very important.
[0004] Dans un tel marché, les boîtiers aérosols sont collectés lorsqu’ils ont été utilisés mais lorsqu'un produit a été utilisé et le boîtier vidé de son contenu, il suit une filière de déchets diffus spécifiques (DDS) et est la plupart du temps incinéré au lieu d'être valorisé dans une filière classique de recyclage du métal. In such a market, aerosol cans are collected when they have been used but when a product has been used and the housing emptied of its contents, it follows a specific diffuse waste (DDS) path and is most time incinerated instead of being recovered in a traditional metal recycling process.
[0005] En effet, le boîtier après complète utilisation contient néanmoins une quantité résiduelle minime de produit actif, inférieure à 10 grammes en général et une phase gazeuse résiduelle éventuellement inflammable avec une pression résiduelle inférieure à la pression interne initiale (pression interne initiale d’environ 3 à 4 bars) ce qui rend le boîtier impropre à être traité comme un simple déchet métallique. [0005] In fact, the housing after complete use nevertheless contains a minimal residual amount of active product, generally less than 10 grams and a possibly flammable residual gas phase with a residual pressure lower than the initial internal pressure (initial internal pressure of approx. 3 to 4 bars) which makes the case unsuitable for being treated as simple metal waste.
[0006] Or le boîtier est un déchet composé essentiellement de métal, si l'on prend la précaution, dans les opérations de tri, d’enlever la partie diffuseur elle- même en PP recyclable. [0006] However, the casing is a waste essentially composed of metal, if we take the precaution, in sorting operations, to remove the diffuser part itself in recyclable PP.
[0007] Il est connu de percer des boîtiers aérosols pour les dépressuriser avant de les jeter. Le document DE 1 993 25 19 A1 prévoit une machine pourvue d’un dispositif de vidange de boîtier aérosols qui comporte une aiguille manœuvrable pour percer le fond d’un boîtier aérosol, une base constituant une surface d’étanchéité sur laquelle repose les fonds des boîtiers aérosols qui sont retenus par des mors de serrage. Cette solution connue n’est pas facilement transposable pour un dispositif manuel simple du fait que l’aiguille nécessite un guidage lors de son déplacement et que le boîtier doit être maintenu fermement sur la surface d’appui avant perçage. It is known to pierce aerosol cans to depressurize them before throwing them away. Document DE 1 993 25 19 A1 provides a machine provided with an aerosol canister emptying device which comprises a maneuverable needle for piercing the bottom of an aerosol canister, a base constituting a sealing surface on which the bottoms of the aerosol can rests. aerosol cans which are retained by clamping jaws. This known solution is not easily transposable for a simple manual device due to the fact that the needle requires guidance during its movement and that the housing must be held firmly on the bearing surface before drilling.
[0008] La demande FR19 03082 déposée le 25/03/2019 au nom de la demanderesse prévoit pour sa part un boîtier aérosol recyclable comportant un fond du boîtier percé en son centre d'un trou recevant un insert ou bouchon élastomère et un outil de dépressurisation comprenant un support pourvu d’un fond comportant une face supérieure bombée de courbure conjugué de la surface externe du fond du boîtier et muni d’un poinçon dépassant d’une partie centrale du fond et adapté à chasser l’insert dans le boîtier. Le poinçon comporte une pointe munie d’un canal central tubulaire débouchant dans un évent sous l’outil pour permettre l’évacuation et la détente d’un gaz sous l’outil. Cet outil peut être complété par un réservoir de récupération des restes de produit disposé sous l’outil. [0008] Application FR19 03082 filed on 03/25/2019 in the name of the applicant provides for its part a recyclable aerosol can comprising a bottom of the housing pierced in its center with a hole receiving an insert or elastomeric plug and a tool for depressurization comprising a support provided with a bottom having an upper face convex of curvature conjugated with the outer surface of the bottom of the case and provided with a punch projecting from a central part of the bottom and adapted to drive the insert into the case. The punch has a tip with a central tubular channel opening into a vent under the tool to allow gas to escape and release under the tool. This tool can be supplemented with a product residue recovery tank placed under the tool.
[0009] Ce dispositif oblige à équiper le fond du boîtier avec un insert élastomère ce qui renchérit la fabrication. This device makes it necessary to equip the bottom of the case with an elastomeric insert, which makes manufacturing more expensive.
[0010] Le document US 6041 506 A décrit un dispositif à poinçon simple qui doit être retiré à la main du fond d’un boîtier après perçage. Aucun maintien du boîtier en position verticale et aucun moyen de retenue des gaz ou reliquats n’est prévu lors du perçage. [0010] Document US 6041 506 A describes a single punch device which must be removed by hand from the bottom of a housing after drilling. No maintenance of the housing in a vertical position and no means of retaining gas or residue is provided during drilling.
[0011] Le document US 6412384 B1 décrit un dispositif pourvu d’une base munie d’un poinçon à son sommet et pourvu d’un poussoir sous sa partie inférieure la base et le poinçon étant protégé par un cache pour lequel le poussoir coulisse dans le cache pour faire sortir le poinçon du cache. Ce document ne prévoit ni maintien vertical du boîtier lors du perçage ni retenue des gaz ou reliquats lors du perçage. Document US 6412384 B1 describes a device provided with a base provided with a punch at its top and provided with a pusher under its lower part, the base and the punch being protected by a cover for which the pusher slides in the cover to release the punch from the cover. This document does not provide for vertical maintenance of the housing during drilling or retention of gases or residues during drilling.
Problème technique Technical problem
[0012] Aussi l’art antérieur ne propose pas de dispositif utilisable proprement et simplement par des consommateurs ou des petites structures pour dépressuriser et vidanger des boîtiers aérosols standards et les rendre ainsi inertes et recyclables en filière classique de recyclage de métal. Exposé de l’invention [0012] Also the prior art does not provide a device that can be used properly and simply by consumers or small structures for depressurizing and emptying standard aerosol cans and thus making them inert and recyclable in the conventional metal recycling industry. Disclosure of the invention
[0013] Au vu de cet art antérieur la présente demande propose un dispositif simple utilisable manuellement par un opérateur pour dépressuriser et/ou vidanger des boîtiers aérosols traditionnels et propose plus précisément un dispositif de dépressurisation et de vidange d’un boîtier aérosol à fond concave, qui comporte un poinçon et une base pourvue d’une paroi cylindrique interne de réception d’une partie inférieure du boîtier aérosol à fond concave, qui comporte en outre à l’intérieur de la paroi cylindrique une coupole pourvue de secteurs ajourés reliée à une partie inférieure de la paroi cylindrique de la base et en retrait du sommet de la paroi cylindrique, ladite coupole comportant en son sommet un logement tubulaire recevant ledit poinçon et comportant des moyens ressort dépassant du profil de la coupole, lesdits moyens ressort étant configurés pour maintenir le fond dudit boîtier au-dessus du poinçon en l’absence d’effort appliqué sur le boîtier pour l’enfoncer dans la base. [0014] Ce dispositif permet de maintenir le boîtier vertical dans la base en position écartée du poinçon grâce aux moyens ressort, d’enfoncer le poinçon dans le fond du boîtier en écrasant les moyens ressort puis de faire ressortir le poinçon du fond du boîtier une fois percé en relâchant l’effort sur les moyens ressort qui reprennent leur forme et repoussent le boîtier, le boîtier restant maintenu vertical par la paroi cylindrique. In view of this prior art, the present application proposes a simple device that can be used manually by an operator to depressurize and / or empty traditional aerosol cans and more specifically proposes a device for depressurizing and emptying an aerosol housing with a concave bottom , which comprises a punch and a base provided with an internal cylindrical wall for receiving a lower part of the aerosol housing with a concave bottom, which further comprises inside the cylindrical wall a dome provided with perforated sectors connected to a lower part of the cylindrical wall of the base and set back from the top of the cylindrical wall, said dome comprising at its top a tubular housing receiving said punch and comprising spring means projecting from the profile of the dome, said spring means being configured to hold the bottom of said housing above the punch in the absence of force applied to the housing to push it into the base. This device allows to keep the vertical housing in the base in a position away from the punch thanks to the spring means, to push the punch into the bottom of the housing by crushing the spring means and then to bring out the punch from the bottom of the housing a once pierced by releasing the force on the spring means which resume their shape and push back the housing, the housing remaining held vertical by the cylindrical wall.
[0015] Ce dispositif simple permet ainsi à un opérateur de dépressuriser et vidanger simplement des boîtiers aérosols standards en posant le fond du boîtier dans la base, en appuyant sur le boîtier pour percer le fond avec le poinçon puis en relâchant le boîtier qui remonte sous l’action des lames ressort ce qui libère les résidus de gaz et de produit qui s’échappent par les secteurs ajourés. This simple device thus allows an operator to simply depressurize and empty standard aerosol cans by placing the bottom of the housing in the base, pressing the housing to pierce the bottom with the punch and then releasing the housing which goes up under the action of the blades emerges which frees the gas and product residues which escape through the perforated sectors.
[0016] Avantageusement, les moyens ressorts sont des lames ressort positionnées entre des arches séparées par les secteurs ajourés. Advantageously, the spring means are leaf spring positioned between arches separated by the perforated sectors.
[0017] Selon un mode de réalisation particulier, les lames ressort sont de forme générale triangulaire. Elles sont avantageusement courbes et s’étendent au- dessus des arches. Elles peuvent comporter une base issue d’une collerette annulaire reliant la coupole à la paroi cylindrique. Pour faciliter leur courbure sous un fond de boîtier elles peuvent être munies d’une pointe arrondie dirigée vers l’axe central de la paroi cylindrique. According to a particular embodiment, the leaf springs are generally triangular in shape. They are advantageously curved and extend above the arches. They may include a base resulting from an annular flange connecting the dome to the cylindrical wall. To facilitate their curvature under a case back they can be provided with a rounded tip directed towards the central axis of the cylindrical wall.
[0018] La paroi cylindrique interne de la base peut être avantageusement pourvue de nervures longitudinales, c’est-à-dire parallèles à l’axe du cylindre défini par la paroi, de guidage du boîtier aérosol. The internal cylindrical wall of the base can advantageously be provided with longitudinal ribs, that is to say parallel to the axis of the cylinder defined by the wall, for guiding the aerosol canister.
[0019] Selon un mode de réalisation, la base se monte sur un socle pourvu d’un fond et d’une paroi périphérique formant un récipient de récupération de résidus contenus dans ledit boîtier et un espace de dégazage du boîtier aérosol. La base et le socle préférablement démontables peuvent être aisément nettoyés. [0020] La base comporte préférablement une jupe externe entourant la paroi interne et dont une extrémité libre est reçue à l’intérieur de ladite paroi périphérique du socle. [0019] According to one embodiment, the base is mounted on a base provided with a bottom and a peripheral wall forming a container for collecting residues contained in said housing and a degassing space of the aerosol housing. The preferably removable base and plinth can be easily cleaned. [0020] The base preferably comprises an outer skirt surrounding the inner wall and a free end of which is received inside said peripheral wall of the base.
[0021] Pour la fixation de la base sur le socle, ladite jupe est avantageusement pourvue de languettes ressort de fixation de la base dans le socle. [0022] Le socle comporte avantageusement un rebord annulaire entourant ladite paroi périphérique, cette dernière comportant des pontets de limitation d’enfoncement de la jupe de la base dans le socle. For fixing the base on the base, said skirt is advantageously provided with spring tabs for fixing the base in the base. [0022] The base advantageously comprises an annular rim surrounding said peripheral wall, the latter comprising bridges for limiting the depression of the skirt of the base in the base.
[0023] Les pontets forment avantageusement des espaces de réception de terminaisons d’encliquetage des languettes ressort qui s’encliquettent sous un surplomb dudit rebord annulaire dans lesdits espaces. [0023] The bridges advantageously form spaces for receiving latching terminations of the spring tabs which engage under an overhang of said annular rim in said spaces.
[0024] Selon un mode de réalisation particulier, le rebord annulaire se prolonge par des ailes de stabilisation du socle sur un support comme une table ou un établi. According to a particular embodiment, the annular rim is extended by stabilization wings of the base on a support such as a table or a workbench.
[0025] La jupe peut être reliée à la paroi cylindrique de la base par une collerette à une extrémité supérieure de ladite paroi. The skirt can be connected to the cylindrical wall of the base by a collar at an upper end of said wall.
[0026] Le poinçon comporte avantageusement un fût reçu dans ledit logement tubulaire. Le poinçon est ainsi amovible et interchangeable. Il comporte préférablement une pointe pyramidale dépassant du sommet de la coupole lorsque le poinçon est monté dans la base. La pointe pyramidale permet de réaliser une ouverture franche dans le fond du boîtier. En outre le poinçon est ici dépourvu de canal. The punch advantageously comprises a barrel received in said tubular housing. The punch is thus removable and interchangeable. It preferably comprises a pyramidal point protruding from the top of the dome when the punch is mounted in the base. The pyramidal point allows make a clear opening in the bottom of the case. In addition, the punch here is devoid of a channel.
Brève description des dessins Brief description of the drawings
[0027] D’autres caractéristiques, détails et avantages de l’invention apparaîtront à la lecture de la description détaillée ci-après, et à l’analyse des dessins annexés, sur lesquels : [0027] Other features, details and advantages of the invention will become apparent on reading the detailed description below, and on analyzing the accompanying drawings, in which:
[0028] [Fig. 1] montre un boîtier aérosol et un dispositif de la demande en perspective de côté; [0028] [Fig. 1] shows an aerosol can and an application device in side perspective;
[0029] [Fig. 2] montre une partie du dispositif de la figure 1 en perspective trois quart dessous; [0029] [Fig. 2] shows part of the device of Figure 1 in three-quarter perspective below;
[0030] [Fig. 3] montre une base de la demande en perspective de dessus; [0030] [Fig. 3] shows a demand base in perspective from above;
[0031] [Fig. 4] montre une vue éclatée d’un dispositif de la demande; [0031] [Fig. 4] shows an exploded view of an on-demand device;
[0032] [Fig. 5] montre un poinçon selon la présente demande. [0032] [Fig. 5] shows a punch according to the present application.
Description des modes de réalisation [0033] Les dessins et la description ci-après contiennent, pour l’essentiel, des éléments techniques servant à mieux faire comprendre la présente invention, mais aussi à contribuer à sa définition, le cas échéant. Description of the Embodiments [0033] The drawings and the description below contain, for the most part, technical elements serving to better understand the present invention, but also to contribute to its definition, if necessary.
[0034] Il est maintenant fait référence à la figure 1 qui représente un boîtier aérosol 10 pourvu d’un tube 12 de sortie d’une valve au sommet d’un dôme 13 et dont la partie inférieure est positionnée dans une base 30 d’un dispositif de dépressurisation et de vidange décrit ci-dessous, cette base étant fixée dans un socle 40 dudit dispositif. Reference is now made to Figure 1 which shows an aerosol housing 10 provided with an outlet tube 12 of a valve at the top of a dome 13 and the lower part of which is positioned in a base 30 of a depressurization and emptying device described below, this base being fixed in a base 40 of said device.
[0035] Selon la figure 2, le boîtier aérosol 10 est vu de dessous ce qui permet de voir son fond concave 11. Le boîtier et le fond sont réalisés de manière traditionnelle en tôle métallique et sont conçus par exemple pour résister à une pression interne de l’ordre de 12 à 15 bars. Par contre, ces boîtiers sont remplis avec une pression de l’ordre de 3 bars à 4 bars et, en fin d’utilisation, la pression résiduelle qu’il faut évacuer du boîtier est encore plus faible. [0036] Dans cette figure est représenté un poinçon 20 qui va percer le fond du boîtier et la base 30 qui le porte. La base est représentée en perspective de dessus à la figure 3 et est pourvue d’une paroi cylindrique interne 31 de réception de la partie inférieure du boîtier aérosol à fond concave. Au fond de cette paroi se trouve une coupole pourvue d’arches 32 séparées par des secteurs ajourés 33. According to Figure 2, the aerosol housing 10 is seen from below which allows to see its concave bottom 11. The housing and the bottom are made in the traditional way of sheet metal and are designed for example to withstand internal pressure of the order of 12 to 15 bars. On the other hand, these housings are filled with a pressure of the order of 3 bars to 4 bars and, at the end of use, the residual pressure which must be evacuated from the housing is even lower. In this figure is shown a punch 20 which will pierce the bottom of the housing and the base 30 which carries it. The base is shown in perspective from above in FIG. 3 and is provided with an internal cylindrical wall 31 for receiving the lower part of the aerosol housing with a concave bottom. At the bottom of this wall is a dome provided with arches 32 separated by perforated sectors 33.
[0037] La coupole est reliée à une partie inférieure de la paroi cylindrique de la base par une collerette 36 interne à la paroi cylindrique. The dome is connected to a lower part of the cylindrical wall of the base by a flange 36 internal to the cylindrical wall.
[0038] La coupole comporte en son sommet un logement tubulaire 35 représenté en figure 4 recevant le poinçon 20 dont la partie de coupe pyramidale 22 dépasse du sommet de la coupole en figure 3. The dome comprises at its top a tubular housing 35 shown in Figure 4 receiving the punch 20 whose pyramidal section 22 protrudes from the top of the dome in Figure 3.
[0039] Entre les arches 32 de la coupole, dans les secteurs ajourés 33 se trouvent des lames ressort 34 dépassant du profil de la coupole. Ces lames ressort sont configurées pour maintenir le fond 11 du boîtier 10 au-dessus du poinçon lorsque l’on pose le boîtier dans la base, l’opérateur devant enfoncer le boîtier dans la base et faire ployer les lames ressort pour que le poinçon s’enfonce dans le fond du boîtier. Une fois le fond percé, l’opérateur peut relâcher le boîtier qui remonte sons l’action des lames ressort 34 ce qui permet aux gaz résiduels et aux reliquats de produits de s’échapper au travers des secteurs ajourés 33. Between the arches 32 of the dome, in the perforated sectors 33 are leaf springs 34 projecting from the profile of the dome. These leaf springs are configured to hold the bottom 11 of the casing 10 above the punch when the casing is placed in the base, the operator having to press the casing into the base and bend the leaf springs so that the punch s 'pushes into the bottom of the case. Once the bottom is pierced, the operator can release the housing which rises under the action of the spring blades 34 which allows residual gases and product residues to escape through the perforated sectors 33.
[0040] Les lames ressort peuvent être remplacées par d’autres moyens ressort comme par exemple un ressort spiral autour de la coupole. The leaf spring can be replaced by other spring means such as for example a spiral spring around the dome.
[0041] Les lames ressort 34 sont selon l’exemple de forme générale triangulaire courbe, munies d’une base issue de la collerette annulaire 36 reliant la coupole à la paroi cylindrique 31 et munies d’une pointe arrondie 34a dirigée vers l’axe central de la paroi cylindrique. The leaf springs 34 are according to the example of generally curved triangular shape, provided with a base resulting from the annular flange 36 connecting the dome to the cylindrical wall 31 and provided with a rounded tip 34a directed towards the axis central of the cylindrical wall.
[0042] Pour guider le boîtier dans la base, la paroi cylindrique comporte des rainures longitudinales 37 ce qui réduit les risques de coincement du boîtier contre la paroi. To guide the housing in the base, the cylindrical wall has longitudinal grooves 37 which reduces the risk of the housing jamming against the wall.
[0043] La base comporte une jupe externe 38 reliée à l’extrémité supérieure de la paroi cylindrique 31 par une collerette 60. Cette jupe forme un capot externe de la base. [0044] Selon la figure 4 notamment, la base se monte sur un socle 40 pourvu d’un fond 41 et d’une paroi périphérique 42 formant un récipient de récupération de résidus contenus dans ledit boîtier et un espace de dégazage du boîtier aérosol. The base comprises an outer skirt 38 connected to the upper end of the cylindrical wall 31 by a flange 60. This skirt forms an outer cover of the base. According to Figure 4 in particular, the base is mounted on a base 40 provided with a bottom 41 and a peripheral wall 42 forming a container for collecting residues contained in said housing and a degassing space of the aerosol housing.
[0045] L’extrémité inférieure libre de la jupe 38 est reçue à l’intérieur de ladite paroi périphérique 42 du socle, ce qui referme la partie du socle formant réservoir. Pour fixer la base sur le socle, la jupe est pourvue de languettes ressort 39 munies d’extrémités 39a d’encliquetage pourvues chacune d’un épaulement qui s’accroche sous un surplomb formé par une partie ajourée 43a sous un rebord annulaire 43 en partie supérieure du socle ce qui encliquette la base sur le socle. The free lower end of the skirt 38 is received inside said peripheral wall 42 of the base, which closes the part of the base forming the reservoir. To fix the base on the base, the skirt is provided with spring tongues 39 provided with latching ends 39a each provided with a shoulder which hooks under an overhang formed by a perforated part 43a under an annular rim 43 in part. top of the plinth which snaps the base onto the plinth.
[0046] Au niveau des parties ajourées 43a, la paroi périphérique comporte des pontets 44 de limitation d’enfoncement de la jupe dans le socle et qui forment des espaces de réception de terminaisons d’encliquetage 39a des languettes ressort. Les pontets complètent en outre la paroi pour maintenir l’étanchéité du réservoir malgré les parties ajourées sous le rebord annulaire 43. At the level of the perforated parts 43a, the peripheral wall comprises bridges 44 for limiting the depression of the skirt in the base and which form spaces for receiving snap-in terminations 39a of the spring tabs. The bridges also complete the wall to maintain the tightness of the tank despite the perforated parts under the annular rim 43.
[0047] Autour du récipient, le rebord annulaire du socle se prolonge par des ailes 45 de stabilisation du socle sur un support. Selon l’exemple les ailes sont percées de trous 46 permettant de fixer le socle sur un support. Le socle comporte en outre une paroi externe 47 qui entoure le récipient 41 , 42. Around the container, the annular rim of the base is extended by wings 45 for stabilizing the base on a support. According to the example, the wings are pierced with holes 46 for fixing the base on a support. The base further comprises an outer wall 47 which surrounds the container 41, 42.
[0048] Selon l’exemple les languettes ressort munies de moyens d’encliquetage sont au nombre de trois de même que les ailes ce qui offre une stabilité suffisante à l’ensemble base et socle. [0048] According to the example, the spring tabs provided with latching means are three in number, as are the wings, which provides sufficient stability to the base and plinth assembly.
[0049] De retour à la figure 2, sous les arches de la coupole se trouvent des nervures de renfort 32a qui rigidifient la base. Returning to Figure 2, under the arches of the dome are reinforcing ribs 32a which stiffen the base.
[0050] Selon la figure 5, le poinçon 20 comporte un fût 21 reçu dans le logement tubulaire 35 au sommet de la coupole, une collerette 23 de retenue du poinçon et une pointe pyramidale 22 de perçage du fond des boîtiers dépassant du sommet de la coupole lorsque le poinçon est monté dans la base. According to Figure 5, the punch 20 comprises a shank 21 received in the tubular housing 35 at the top of the dome, a flange 23 for retaining the punch and a pyramidal tip 22 for drilling the bottom of the housings protruding from the top of the dome when the punch is mounted in the base.
[0051] L’invention objet des revendications qui suivent n’est pas limitée à l’exemple représenté et notamment le poinçon peut comporter plus ou moins de quatre pans et le socle plus de trois ailes. The invention, which is the subject of the following claims, is not limited to the example shown and in particular the punch may have more or less than four sides and the base more than three wings.

Claims

Revendications Claims
[Revendication 1] Dispositif de dépressurisation et de vidange d’un boîtier aérosol (10) à fond (11) concave, qui comporte un poinçon (20) et une base (30) pourvue d’une paroi cylindrique interne (31) de réception d’une partie inférieure du boîtier aérosol à fond concave, caractérisé en ce qu’il comporte à l’intérieur de la paroi cylindrique une coupole pourvue de secteurs ajourés (33) reliée à une partie inférieure de la paroi cylindrique de la base et en retrait du sommet de la paroi cylindrique, ladite coupole comportant en son sommet un logement tubulaire (35) recevant ledit poinçon et comportant des moyens ressort (34) dépassant du profil de la coupole, lesdits moyens ressort (34) étant configurés pour maintenir le fond (11) dudit boîtier (10) au-dessus du poinçon en l’absence d’effort appliqué sur le boîtier pour l’enfoncer dans la base. [Claim 1] Device for depressurizing and emptying an aerosol can (10) with a concave bottom (11), which comprises a punch (20) and a base (30) provided with an internal cylindrical wall (31) for receiving a lower part of the aerosol case with a concave bottom, characterized in that it comprises inside the cylindrical wall a dome provided with perforated sectors (33) connected to a lower part of the cylindrical wall of the base and in withdrawal of the top of the cylindrical wall, said dome comprising at its top a tubular housing (35) receiving said punch and comprising spring means (34) projecting from the profile of the dome, said spring means (34) being configured to hold the bottom (11) of said housing (10) above the punch in the absence of force applied to the housing to push it into the base.
[Revendication 2] Dispositif de dépressurisation et de vidange d’un boîtier aérosol selon la revendication 1 pour lequel les moyens ressort sont des lames ressort (34) positionnées entre des arches (32) de la coupole séparées par lesdits secteurs ajourés. [Claim 2] Device for depressurizing and emptying an aerosol canister according to claim 1 for which the spring means are leaf spring (34) positioned between arches (32) of the dome separated by said perforated sectors.
[Revendication 3] Dispositif de dépressurisation et de vidange d’un boîtier aérosol selon la revendication 2 pour lequel les lames ressort (34) sont de forme générale triangulaire courbe munie d’une base issue d’une collerette annulaire (36) reliant la coupole à la paroi cylindrique (31) et d’une pointe arrondie (34a) dirigée vers l’axe central de la paroi cylindrique. [Claim 3] Device for depressurizing and emptying an aerosol canister according to claim 2, for which the spring blades (34) are of generally curved triangular shape provided with a base resulting from an annular collar (36) connecting the dome. to the cylindrical wall (31) and a rounded tip (34a) directed towards the central axis of the cylindrical wall.
[Revendication 4] Dispositif de dépressurisation et de vidange d’un boîtier aérosol selon la revendication 1 , 2 ou 3 pour lequel la paroi cylindrique interne de la base est pourvue de nervures longitudinales (37) de guidage du boîtier aérosol. [Claim 4] Device for depressurizing and emptying an aerosol canister according to claim 1, 2 or 3 for which the internal cylindrical wall of the base is provided with longitudinal ribs (37) for guiding the aerosol canister.
[Revendication 5] Dispositif de dépressurisation et de vidange d’un boîtier aérosol selon l’une quelconque des revendications précédentes pour lequel la base se monte sur un socle (40) pourvu d’un fond (41) et d’une paroi périphérique (42) formant un récipient de récupération de résidus contenus dans ledit boîtier et un espace de dégazage du boîtier aérosol. [Claim 5] Device for depressurizing and emptying an aerosol canister according to any one of the preceding claims, for which the base is mounted on a base (40) provided with a bottom (41) and a peripheral wall ( 42) forming a container for collecting residues contained in said housing and a degassing space of the aerosol housing.
[Revendication 6] Dispositif de dépressurisation et de vidange d’un boîtier aérosol selon la revendication 5 pour lequel la base comporte une jupe externe (38) entourant la paroi interne et dont une extrémité libre est reçue à l’intérieur de ladite paroi périphérique (42) du socle, ladite jupe étant pourvue de languettes ressort (39) de fixation de la base dans le socle. [Claim 6] Device for depressurizing and emptying an aerosol canister according to claim 5 for which the base comprises an external skirt (38) surrounding the internal wall and a free end of which is received inside said peripheral wall (42) of the base, said skirt being provided with spring tabs (39) for fixing the base in the base.
[Revendication 7] Dispositif de dépressurisation et de vidange d’un boîtier aérosol selon la revendication 6 pour lequel le socle comporte un rebord annulaire (43) entourant ladite paroi périphérique (42), ladite paroi périphérique comportant des pontets (44) de limitation d’enfoncement de la jupe de la base dans le socle et formant des espaces de réception de terminaisons d’encliquetage (39a) des languettes ressort qui s’encliquettent sous un surplomb dudit rebord annulaire (43a) dans lesdits espaces. [Claim 7] A device for depressurizing and emptying an aerosol canister according to claim 6, for which the base comprises an annular rim (43) surrounding said peripheral wall (42), said peripheral wall comprising bridges (44) for limiting d 'depression of the skirt of the base in the base and forming spaces for receiving latching terminations (39a) of the spring tabs which engage under an overhang of said annular rim (43a) in said spaces.
[Revendication 8] Dispositif de dépressurisation et de vidange d’un boîtier aérosol selon la revendication 7 pour lequel le rebord annulaire se prolonge par des ailes (45) de stabilisation du socle sur un support. [Claim 8] Device for depressurizing and emptying an aerosol canister according to claim 7, for which the annular rim is extended by wings (45) for stabilizing the base on a support.
[Revendication 9] Dispositif de dépressurisation et de vidange d’un boîtier aérosol selon la revendication 6, 7 ou 8 pour lequel la jupe est reliée à la paroi cylindrique de la base par une collerette (60) à une extrémité supérieure de ladite paroi. [Claim 9] Device for depressurizing and emptying an aerosol canister according to claim 6, 7 or 8 for which the skirt is connected to the cylindrical wall of the base by a flange (60) at an upper end of said wall.
[Revendication 10] Dispositif de dépressurisation et de vidange d’un boîtier aérosol selon l’une quelconque des revendications précédentes pour lequel le poinçon (20) comporte un fût (21) reçu dans ledit logement tubulaire et une pointe pyramidale (22) dépassant du sommet de la coupole lorsque le poinçon est monté dans la base. [Claim 10] Device for depressurizing and emptying an aerosol canister according to any one of the preceding claims, for which the punch (20) comprises a barrel (21) received in said tubular housing and a pyramidal tip (22) projecting from the top of the dome when the punch is mounted in the base.
EP20823898.0A 2019-12-06 2020-11-17 Depressurisation and drainage device for aerosol can Pending EP4069444A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1913876A FR3104149B1 (en) 2019-12-06 2019-12-06 DEPRESSURIZATION AND DRAINING DEVICE FOR AEROSOL BOX
PCT/FR2020/052091 WO2021111053A1 (en) 2019-12-06 2020-11-17 Depressurisation and drainage device for aerosol can

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EP4069444A1 true EP4069444A1 (en) 2022-10-12

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EP20823898.0A Pending EP4069444A1 (en) 2019-12-06 2020-11-17 Depressurisation and drainage device for aerosol can

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EP (1) EP4069444A1 (en)
CA (1) CA3161787A1 (en)
FR (1) FR3104149B1 (en)
WO (1) WO2021111053A1 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4459906A (en) * 1982-11-29 1984-07-17 American Home Products Corp. Aerosol can evacuator and compactor
IT1186033B (en) * 1985-10-31 1987-11-18 Bayer Italia Spa SEMIAUTOMATIC DEVICE FOR EMPTYING AEROSOL CYLINDERS, DISCHARGE, WITH VERTICAL INTRODUCTION OF THE CYLINDERS
JP3467192B2 (en) * 1998-11-06 2003-11-17 株式会社 岩崎 Perforator
JP3505102B2 (en) * 1999-03-23 2004-03-08 株式会社 岩崎 Perforator
DE19932519C5 (en) 1999-07-12 2009-07-09 Hasenpusch, Siegfried Device for emptying spray cans
ES2814288T3 (en) * 2015-08-14 2021-03-26 Justrite Mfg Co Llc Drilling device for aerosol containers

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FR3104149B1 (en) 2021-12-10
CA3161787A1 (en) 2021-06-10
FR3104149A1 (en) 2021-06-11
WO2021111053A1 (en) 2021-06-10

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