EP0001960B1 - System for fixing an apparatus on a pressurized storage tank - Google Patents

System for fixing an apparatus on a pressurized storage tank Download PDF

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Publication number
EP0001960B1
EP0001960B1 EP78420012A EP78420012A EP0001960B1 EP 0001960 B1 EP0001960 B1 EP 0001960B1 EP 78420012 A EP78420012 A EP 78420012A EP 78420012 A EP78420012 A EP 78420012A EP 0001960 B1 EP0001960 B1 EP 0001960B1
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EP
European Patent Office
Prior art keywords
hooking
central core
cartridge
annular piece
annular
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
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EP78420012A
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German (de)
French (fr)
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EP0001960A1 (en
Inventor
Pierre Sivignon
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Application des Gaz SA
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Application des Gaz SA
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Publication date
Application filed by Application des Gaz SA filed Critical Application des Gaz SA
Publication of EP0001960A1 publication Critical patent/EP0001960A1/en
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Publication of EP0001960B1 publication Critical patent/EP0001960B1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/04—Arrangement or mounting of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/07—Applications for household use
    • F17C2270/0709—Camping gas

Definitions

  • the present invention relates to a fixing system intended to allow the attachment of a gas appliance and a cartridge of pressurized fluid. It relates more precisely, but not exclusively, to a fixing system with a cartridge of the "aerosol" type containing a liquefied combustible gas, for example butane.
  • these cartridges generally comprise a cylindrical body with a convex upper dome, a concave cup crimped onto the upper dome, a sampling and / or filling valve housed in the center of the concave cup.
  • the two crimped edges respectively belong to the convex dome and to the concave cup determine an annular rim inside and under which can snap the fastening members of the fixing system mentioned above.
  • positive locking means is meant a means distinct from the other members of the fixing system, making it possible to reversibly perform a new function, namely to bring the claw of each hooking member under pressure against the internal wall of the annular bead cartridge.
  • a cartridge 1 of pressurized fluid such as liquefied butane, affecting the shape of an aerosol reservoir, as well as a fixing system according to the invention intended to allow a gas appliance 2 to be associated with said cartridge.
  • the cartridge 1 comprises a cylindrical body 1 a with a convex upper dome 1 b; a concave cup 1 c is set on the dome 1 b and forms with it an annular bead 1 d.
  • a sampling valve 1 is placed in the center of the cup 1 c.
  • the device 2 is provided with an externally threaded central core 4 comprising in its center a known sampling device 5 intended to cooperate with the valve 1e of the cartridge 1.
  • the system according to the invention is further composed of an annular part 3 produced in the form of a cylindrical bell 6 surmounted by a tubular and central chimney 7.
  • the latter includes a thread cooperating with the thread of the central core 4.
  • the junction of the chimney and the upper face 6a of the bell 6 is provided with four openings 8 arranged at 90 ° from one another and which extend partly in the upper wall of the bell, part in the chimney 7
  • Each of the openings allows the passage of a hooking member 9 shaped like a claw and produced in the form of a spring steel blade suitably bent and which is riveted at one end on the upper face 6a of the bell 6
  • Each fastening member 9 comprises a rectilinear part 9a secured to the face 6a by means of a rivet 10 and which is extended by a part 9b turned downward through the corresponding opening 8, followed by a heel of hooking 9c cambered outwards, followed by a tab 9d oriented towards the center and obliquely to the horizontal.
  • This tab 9d which extends at least partially under the lower part of the central core 4, constitutes a thrust element of the corresponding hooking member 9.
  • the set of heels 9c of the fastening members 9 is roughly situated on a circumference of diameter slightly greater than that inside of the bead 1 d.
  • the device 5 of the central core 4 acts on the valve 1 of the cartridge 1 to open it so that the gas contained in the cartridge can flow through a channel 5a towards the active part of the device 2 which generally comprises a stopcock.
  • the device 2 which generally comprises a stopcock.
  • the fastening members 9 under the bead 1 d being added to the elastic snap-fastening of the same members.
  • a groove 4a located on the side is made in the central core of the central core associated with the device 2 and in the tubular chimney 7 of the annular part 3 there are at least two slots 7a, 7b oriented parallel to the upper end of said chimney.
  • the top of this chimney can be deformed above the slots 7a, 7b so as to form two projections 7c, 7d (Fig. 6 and 7) facing towards 'interior and whose distance between technicians is less than the outer diameter of the central core while being slightly greater than that of the bottom of the groove 4a.
  • the height of the latter is, of course, provided so that the projections 7c, 7d do not prevent the free end of the central core 4 from acting on the lugs 9d of the attachment members 9.
  • FIG. 8 there is shown in fig. 8 an alternative embodiment of the fastening members 9 which are each produced in the form of a pivoting element comprising at least two teeth.
  • the annular part 3 no longer has openings 8, but the chimney 7 is extended downwards by an internal skirt 11 which extends concentrically with the periphery of the bell 6.
  • the skirt 11 which has a certain thickness is provided with at least two parallel notches 11 a, 11 b diametrically opposite through which extends an axis produced in the form of a cylindrical pin 12 fixed to the skirt 11 1 by any means not shown, for example by riveting, and around which a roller is mounted for free rotation 13 forming the aforementioned pivoting element, comprising four teeth 14 regularly distributed over its periphery.
  • the means of making the annular part 3 of the central core 4 non-removable consists of a pin 15 made integral with the chimney 7 and which is engaged transversely in the latter so that it is in the groove 4a of the central core.
  • the skirt 11 is provided with an inner groove 11 c in which the elastic circular ring 16 is engaged, which constitutes the axis of articulation of the rollers 13.
  • the central core 4 has at its lower part a bearing 4b of diameter smaller than that at the bottom of the thread of its threaded part and which ends in a chamfer 4c.
  • the bearing 4b therefore significantly reduces the threaded length of the central core 4.
  • the annular part 3 is produced in the form of a member molded from a suitable plastic material. It comprises a cylindrical nut 17 extending downwards by a socket 18 comprising four radial slots 19 so that this socket is constituted by four independent elastic jaws 20 connected to the nut 17.
  • the socket 18 is provided with a conical bore 21 open upwards following the threaded part of the nut 17 and which extends in the direction of the bottom by a second conical bore 22 with greater conicity; thus is determined on each jaw a pushing element 23 in the form of an oblique surface facing inward.
  • the outer periphery of the sleeve 18, therefore also each of the jaws 20, has a projection forming a hooking heel 24 surmounted by a flange or spout 25.
  • the nut 17 is provided with two fins 17a, 17b intended to facilitate its actuation.
  • the annular part 3 being partially or not screwed onto the thread of the central core 4, the hooking heels 24 can be engaged elastically under the inner part of the bead 1 d of the cartridge 1. If the annular part 3 is angularly immobilized by means of the fins 17a, 17b and that the central core 4 is screwed into said part, the chamfer 4c of the latter comes at the end of the screwing to bear against the conical bore 22, which causes a movement of the jaws 20 so centrifugal so that their hooking heels 24 are blocked under the bead 1 d of the cartridge 1, in the same way as the heel 9c of the hooking members 9 described with reference to FIG. 3.

Description

La présente invention a trait à un système de fixation destiné à permettre la solidarisation d'un appareil à gaz et d'une cartouche de fluide sous pression. Elle concerne plus précisément, mais non exclusivement, un système de fixation avec une cartouche du type "aérosol" contenant un gaz combustible liquéfié, par exemple du butane. Pour mémoire, on rappelle que ces cartouches comprennent en général un corps cylindrique avec dôme supérieur convexe, une coupelle concave sertie sur le dôme supérieur, une valve de prélèvement et/ou remplissage logée au centre de la coupelle concave. Les deux bords sertis appartenent respectivement au dôme convexe et à la coupelle concave déterminent un rebord annulaire à l'intérieur et sous lequel peuvent venir s'encliqueter les organes d'accrochage du système de fixation mentionné précédemment.The present invention relates to a fixing system intended to allow the attachment of a gas appliance and a cartridge of pressurized fluid. It relates more precisely, but not exclusively, to a fixing system with a cartridge of the "aerosol" type containing a liquefied combustible gas, for example butane. As a reminder, it should be recalled that these cartridges generally comprise a cylindrical body with a convex upper dome, a concave cup crimped onto the upper dome, a sampling and / or filling valve housed in the center of the concave cup. The two crimped edges respectively belong to the convex dome and to the concave cup determine an annular rim inside and under which can snap the fastening members of the fixing system mentioned above.

Pour certaines applications, notamment soudage, éclairage et cuisson, il est connu de fixer des dispositifs correspondants sur des cartouches aérosol contenant du butane liquéfié, l'ensemble cartouche-dispositif constituant alors un appareil portatif pouvant être aisément maintenu en main par le corps cylindrique de la cartouche.For certain applications, in particular welding, lighting and cooking, it is known to fix corresponding devices on aerosol cartridges containing liquefied butane, the cartridge-device assembly then constituting a portable device which can be easily held in hand by the cylindrical body of the cartridge.

Ainsi le FR-A-1 336 341 décrit un système de fixation comprenant:

  • -un noyau central solidaire de l'appareil d'utilisation, comportant des moyens de prélèvement de fluide destinés à coopérer avec la valve de ladite cartouche
  • -une pièce annulaire en forme de cloche entourant le noyau central, comportant sur son pourtour plusieurs organes d'accrochage encliquetables à l'extérieur et sous le bourrelet annulaire de la cartouche, chaque organe d'accrochage étant pourvu d'un talon d'accrochage sous forme de bord roulé, mobile vers la paroi en creux du bourrelet annulaire de la cartouche
  • -une baque de butée disposée à l'extérieur de la pièce annulaire, mobile axialement par rapport à cette dernière, empêchant tout déplacement vers l'extérieur des organes d'accrochage, lorsque ladite bague est en position basse
  • -des moyens de déplacement axial du noyau central, par rapport et à l'intérieur de la pièce annulaire, comprenant d'une part un taraudage à l'intérieur d'un écrou fixé sur la pièce annulaire, et d'autre part un filetage à l'extérieur du noyau central, avec lequel coopére ledit taraudage.
Thus FR-A-1 336 341 describes a fixing system comprising:
  • a central core integral with the device for use, comprising means for withdrawing fluid intended to cooperate with the valve of said cartridge
  • an annular bell-shaped part surrounding the central core, comprising on its periphery several latching members snapable to the outside and under the annular bead of the cartridge, each latching member being provided with a latching heel in the form of a rolled edge, movable towards the hollow wall of the annular bead of the cartridge
  • a stopper plate disposed outside the annular part, axially movable relative to the latter, preventing any displacement towards the outside of the fastening members, when said ring is in the low position
  • means of axial displacement of the central core, with respect to and inside the annular part, comprising on the one hand a thread inside a nut fixed on the annular part, and on the other hand a thread outside the central core, with which said tapping cooperates.

Deux problèmes apparemment contradictoires doivent être résolus pour des appareils portatifs tels qu'évoqués précedem- ment. Tout d'abord, le dispositif fixé sur la cartouche doit faire corps avec cette dernière, ce qui signifie que le système de fixation mis en oeuvre doit apporter une solidarisation rigide du dispositif sur la cartouche, de manière à éviter tout mouvement relatif de ces deux éléments, susceptible d'engendrer une fuite de gaz combustible. Par ailleurs, ces appareils pouvant tomber accidentellement, il est primordial que l'effort nécessaire pour désolidariser le dispositif de la cartouche soit inférieur à celui indispensable pour dessertir la coupelle du dôme supérieur de la cartouche, de mainère que ces chutes entraînent une séparation du dispositif à partir de la cartouche, et non une fuite de gaz combistible à la jonction coupelledôme. Dans ce contexte, il faut donc trouver un système de fixation qui permette de "doser" convenablement l'effort de solidarisation du dispositif sur la cartouche entre les deux limites évoquées pré- cédement, et ce en assurant une fonction supplémentaire non rencontrée pour les principaux systèmes équivalents de l'art antérieur, à savoir un positionnement rigide du dispositif sur la cartouche.Two seemingly contradictory problems have to be solved for portable devices as mentioned above. First of all, the device fixed on the cartridge must be integral with the latter, which means that the fixing system used must provide a rigid connection of the device on the cartridge, so as to avoid any relative movement of these two elements, likely to cause a fuel gas leak. Furthermore, since these devices may fall accidentally, it is essential that the effort required to separate the device from the cartridge is less than that essential for serving the cup of the upper dome of the cartridge, so that these drops cause the device to separate. from the cartridge, not a leak of combistible gas at the domed junction. In this context, it is therefore necessary to find a fixing system which makes it possible to appropriately "dose" the effort of securing the device to the cartridge between the two limits mentioned above, and this by ensuring an additional function not encountered for the main equivalent systems of the prior art, namely a rigid positioning of the device on the cartridge.

A cette fin, selon la présente invention, on a trouvé qu'un système de fixation pour lequel:

  • -les organes d'accrochage sont encliquetables à l'intérieur du bourrelet annulaire de la cartouche
  • -on prévoit un moyen de blocage positif de chaque talon d'accrochage à l'intérieur et sous le bourrelet précité, ce moyen étant actionné directement par la partie inférieure du noyau central, lors du déplacement axial de ce dernier à l'intérieur de la pièce annulaire convenait bien à la solution du problème technique précédent.
To this end, according to the present invention, it has been found that a fixing system for which:
  • -the hooking members can be snapped inside the annular bead of the cartridge
  • -a positive locking means is provided for each latching heel inside and under the aforementioned bead, this means being actuated directly by the lower part of the central core, during the axial displacement of the latter inside the annular part suited well to the solution of the previous technical problem.

Par moyen de blocage positif, on entend un moyen distinct des autres organes du système de fixation, permettant d'accomplir de manière réversible une fonction nouvelle, à savoir amener la griffe de chaque organe d'accrochage en pression contre la paroi interne du bourrelet annulaire de la cartouche.By positive locking means is meant a means distinct from the other members of the fixing system, making it possible to reversibly perform a new function, namely to bring the claw of each hooking member under pressure against the internal wall of the annular bead cartridge.

Le dessin annexé, donné à titre d'exemple, permettra de mieux comprendre l'invention, les caractéristiques qu'elle présente et les avantages qu'elle est susceptible de procurer:

  • Fig. 1 montre un système de fixation suivant l'invention solidaire en partie d'un appareil à gaz et destiné à être associé à une cartouche de gaz sous pression pourvue d'une valve de prélèvement.
  • Fig. 2 est une vue par dessus de la pièce annulaire du système représenté à la figure 1.
  • Fig. 3 montre le système suivant l'invention au début du vissage de l'appareil sur la pièce annulaire.
  • Fig. 4 est une vue semblable à celle de fig. 3 mais illustrant le système de fixation en position de fonctionnement de l'appareil.
  • Fig. 5 montre schématiquement à l'état démonté les deux pièces principales d'un système suivant l'invention.
  • Fig. 6 en est une vue à l'état monté illustrant la manière dont la pièce annulaire est rendue définitivement solidaire de l'appareil.
  • Fig. 7 en est une coupe suivant VII―VII (Fig. 6).
  • Fig. 8 est une vue semblable à celle de fig. 4 mais illustrant une variante de réalisation des organes d'accrochage.
  • Fig. 9, 10 et 11 sont des coupes transversales de la pièce annulaire selon la figure 8, illustrant différentes manières de monter les organes d'accrochage.
  • Fig. 12 illustre une autre variante du système de fixation suivant l'invention.
  • Fig. 13 est une vue par dessous de la pièce annulaire du_ système de fig. 12.
The appended drawing, given by way of example, will allow a better understanding of the invention, the characteristics which it presents and the advantages which it is capable of providing:
  • Fig. 1 shows a fixing system according to the invention integral in part with a gas appliance and intended to be associated with a pressurized gas cartridge provided with a sampling valve.
  • Fig. 2 is a view from above of the annular part of the system shown in FIG. 1.
  • Fig. 3 shows the system according to the invention at the start of screwing the device onto the annular part.
  • Fig. 4 is a view similar to that of FIG. 3 but illustrating the fixing system in the operating position of the device.
  • Fig. 5 schematically shows in the disassembled state the two main parts of a system according to the invention.
  • Fig. 6 is a view in the assembled state illustrating the manner in which the annular part is rendered permanently attached to the device.
  • Fig. 7 is a section along VII ― VII (Fig. 6).
  • Fig. 8 is a view similar to that of FIG. 4 but illustrating an alternative embodiment of the attachment members.
  • Fig. 9, 10 and 11 are cross sections of the annular part according to Figure 8, illustrating different ways of mounting the fastening members.
  • Fig. 12 illustrates another variant of the fixing system according to the invention.
  • Fig. 13 is a view from below of the annular part of the system of FIG. 12.

On a représenté en fig. 1 une cartouche 1 de fluide sous pression tel que du butane liquéfié, affectant la forme d'un réservoir pour aérosol, ainsi qu'un système de fixation suivant l'invention destiné à permettre d'associer un appareil à gaz 2 à ladite cartouche.There is shown in fig. 1 a cartridge 1 of pressurized fluid such as liquefied butane, affecting the shape of an aerosol reservoir, as well as a fixing system according to the invention intended to allow a gas appliance 2 to be associated with said cartridge.

A la manière connue la cartouche 1 comporte un corps cylindrique 1 a avec dôme supérieur convexe 1 b; une coupelle concave 1 c est sertie sur le dôme 1 b et forme avec lui un bourrelet annulaire 1 d. Une valve de prélèvement 1 est disposée au centre de la coupelle 1 c.In the known manner, the cartridge 1 comprises a cylindrical body 1 a with a convex upper dome 1 b; a concave cup 1 c is set on the dome 1 b and forms with it an annular bead 1 d. A sampling valve 1 is placed in the center of the cup 1 c.

L'appareil 2 est pourvu d'un noyau central 4 fileté extérieurement comportant dans son centre un dispositif connu de prélèvement 5 destiné à coopérer avec la valve 1e de la cartouche 1.The device 2 is provided with an externally threaded central core 4 comprising in its center a known sampling device 5 intended to cooperate with the valve 1e of the cartridge 1.

Le système suivant l'invention est encore composé d'une pièce annulaire 3 réalisée sous la forme d'une cloche 6 cylindrique surmontée d'une cheminée 7 tubulaire et centrale. Cette dernière comporte un taraudage coopérant avec le filetage du noyau central 4.The system according to the invention is further composed of an annular part 3 produced in the form of a cylindrical bell 6 surmounted by a tubular and central chimney 7. The latter includes a thread cooperating with the thread of the central core 4.

Comme montré en fig. 2, la jonction de la cheminée et de la face supérieure 6a de la cloche 6 est pourvue de quatre ouvertures 8 disposées à 90° les unes des autres et qui s'étendent partie dans la paroi supérieure de la cloche, partie dans la cheminée 7. Chacune des ouvertures permet le passage d'un organe d'accrochage 9 conformé en griffe et réalisé sous la forme d'une lame d'acier à ressort convenablement coudée et qui est rivée à une extrémité sur la face supérieure 6a de la cloche 6. Chaque organe d'accrochage 9 comprend une partie rectiligne 9a solidarisée à la face 6a au moyen d'un rivet 10 et qui se prolonge par une partie 9b tournée vers le bas traversant l'ouverture 8 correspondante, suivie d'un talon d'accrochage 9c cambré vers l'extérieur auquel fait suite une patte 9d orientée vers le centre et obliquement par rapport à l'horizontale. Cette patte 9d, qui s'étend au moins partiellement sous la partie inférieure du noyau central 4, constitue un élément de poussée de l'organe d'accrochage 9 correspondant. L'ensemble des talons 9c des organes d'accrochage 9 est en gros situé sur une circonférence de diamètre légèrement supérieur à celui intérieur du bourrelet 1 d. Ainsi lorsque le noyau central 4 est légèrement vissé dans l'alésage taraudé de la cheminée 7 il est possible d'encliqueter les organes d'accrochage à l'intérieur et sous le bourrelet 1 a (Fig. 3), la face inférieure 6b de la cloche 6 venant en appui contre le dessus du bourrelet précité.As shown in fig. 2, the junction of the chimney and the upper face 6a of the bell 6 is provided with four openings 8 arranged at 90 ° from one another and which extend partly in the upper wall of the bell, part in the chimney 7 Each of the openings allows the passage of a hooking member 9 shaped like a claw and produced in the form of a spring steel blade suitably bent and which is riveted at one end on the upper face 6a of the bell 6 Each fastening member 9 comprises a rectilinear part 9a secured to the face 6a by means of a rivet 10 and which is extended by a part 9b turned downward through the corresponding opening 8, followed by a heel of hooking 9c cambered outwards, followed by a tab 9d oriented towards the center and obliquely to the horizontal. This tab 9d, which extends at least partially under the lower part of the central core 4, constitutes a thrust element of the corresponding hooking member 9. The set of heels 9c of the fastening members 9 is roughly situated on a circumference of diameter slightly greater than that inside of the bead 1 d. Thus when the central core 4 is slightly screwed into the threaded bore of the chimney 7 it is possible to snap the hooking members inside and under the bead 1a (Fig. 3), the lower face 6b of the bell 6 coming to bear against the top of the aforementioned bead.

Lorsque l'utilisateur maintient la pièce annulaire 3 angulairement fixe tandis qu'il fait tourner l'appareil 2, son noyau central 4 se déplace axialement vers le bas par rapport et à l'intérieur de la cloche 6, par vissage dans l'alésage taraudé de la cheminée 7. L'extrémité libre ou partie inférieure du noyau central 4 vient alors actionner chaque organe d'accrochage 9, et plus précisément agir contre les pattes 9d constituant élément de poussée des organes d'accrochage 9 en vue de mouvoir élastiquement les talons 9c de manière centrifuge vers la paroi en creux du bourrelet 1 d; les talons 9c viennent ainsi se verrouiller positivement sous le bourrelet 1 d de la cartouche 1. A ce moment le dispositif 5 du noyau central 4 agit sur la valve 1 de la cartouche 1 pour l'ouvrir afin que le gaz que contient la cartouche puisse s'écouler par un canal 5a en direction de la partie active de l'appareil 2 qui comprend généralement un robinet d'arrêt. On assiste donc à une solidarisation rigide de l'appareil 2 par rapport à la cartouche 1 par blocage positif des organes d'accrochage 9 sous le bourrelet 1 d venant s'ajouter à l'encliquetage élastique des mêmes organes. En faisant varier le nombre des organes d'accorchage 9, il est possible de modifier l'effort nécessaire à la désolidarisation de l'appareil et de la cartouche, donc d'adapter cet effort par rapport à celui nécessaire ou dessertissage de la cartouche.When the user keeps the annular part 3 angularly fixed while he rotates the device 2, its central core 4 moves axially downward relative to and inside the bell 6, by screwing into the bore threaded from the chimney 7. The free end or lower part of the central core 4 then actuates each latching member 9, and more precisely act against the lugs 9d constituting the thrust element of the latching members 9 in order to move elastically the heels 9c centrifugally towards the hollow wall of the bead 1 d; the heels 9c thus come to lock positively under the bead 1 d of the cartridge 1. At this time the device 5 of the central core 4 acts on the valve 1 of the cartridge 1 to open it so that the gas contained in the cartridge can flow through a channel 5a towards the active part of the device 2 which generally comprises a stopcock. There is therefore a rigid attachment of the device 2 relative to the cartridge 1 by positive locking of the fastening members 9 under the bead 1 d being added to the elastic snap-fastening of the same members. By varying the number of fastening members 9, it is possible to modify the force necessary for the separation of the device and the cartridge, and therefore to adapt this force relative to that required or for the cartridge to be disjointed.

En vue d'éviter la perte de la pièce annulaire 3 par dévissage intempestif à partir du noyau central 4 de l'appareil 2 lorsque ce dernier n'est pas associé à une cartouche, on effectue dans le noyau central une gorge 4a située du côté du noyau central associé à l'appareil 2 et l'on pratique dans la cheminée 7 tubulaire de la pièce annulaire 3 au moins deux fentes 7a, 7b orientés parallèlement à l'extrémité supérieure de ladite cheminée. Après vissage du noyau central 4 dans l'alésage taraudé de la cheminée 7 on peut déformer le haut de cette cheminée au-dessus des fentes 7a, 7b de manière à former deux saillies 7c, 7d (Fig. 6 et 7) tournées vers l'intérieur et dont la distance entre alles est inférieure au diamètre extérieur du noyau central tout en étant légèrement supérieure à celui du fond de la gorge 4a. La hauteur de celle-ci est, bien entendu, prévue de manière que les saillies 7c, 7d n'empêchent pas l'extrémité libre du noyau central 4 d'agir sur les pattes 9d des organes d'accrochage 9.In order to avoid the loss of the annular part 3 by untimely unscrewing from the central core 4 of the device 2 when the latter is not associated with a cartridge, a groove 4a located on the side is made in the central core of the central core associated with the device 2 and in the tubular chimney 7 of the annular part 3 there are at least two slots 7a, 7b oriented parallel to the upper end of said chimney. After screwing the central core 4 into the threaded bore of the chimney 7, the top of this chimney can be deformed above the slots 7a, 7b so as to form two projections 7c, 7d (Fig. 6 and 7) facing towards 'interior and whose distance between alles is less than the outer diameter of the central core while being slightly greater than that of the bottom of the groove 4a. The height of the latter is, of course, provided so that the projections 7c, 7d do not prevent the free end of the central core 4 from acting on the lugs 9d of the attachment members 9.

On a représenté en fig. 8 une variante d'exécution des organes d'accrochage 9 qui se trouvent chacun réalisé sous la forme d'un élément pivotant comportant au moins deux dents. Dans la forme avantageuse d'exécution de fig. 8 la pièce annulaire 3 ne comporte plus ouvertures 8, mais la cheminée 7 se prolonge vers le bas par une jupe interne 11 qui s'étend concentriquement à la périphérie de la cloche 6. La jupe 11 qui comporte une certaine épaisseur est pourvue d'au moins deux entailles parallèles 11 a, 11 b diamétralement opposées à travers lesquelles s'étend un axe réalisé sous la forme d'une goupille cylindrique 12 fixée à la jupe 11 1 par tous moyens non représentés, par exemple par rivetage, et autour de laquelle est montée à rotation libre une roulette 13 formant l'élément pivotant précité, comportant quatre dents 14 régulièrement réparties sur sa périphérie.There is shown in fig. 8 an alternative embodiment of the fastening members 9 which are each produced in the form of a pivoting element comprising at least two teeth. In the advantageous embodiment of FIG. 8 the annular part 3 no longer has openings 8, but the chimney 7 is extended downwards by an internal skirt 11 which extends concentrically with the periphery of the bell 6. The skirt 11 which has a certain thickness is provided with at least two parallel notches 11 a, 11 b diametrically opposite through which extends an axis produced in the form of a cylindrical pin 12 fixed to the skirt 11 1 by any means not shown, for example by riveting, and around which a roller is mounted for free rotation 13 forming the aforementioned pivoting element, comprising four teeth 14 regularly distributed over its periphery.

Lorsqu'on présente le dispositif suivant fig. 8 et 9 en face du bourrelet 1 d de la cartouche 1 celui-ci coopère avec une des dents des roulettes 13; lorsqu'on poursuit le mouvement de déplacement de l'ensemble 2-3 en direction de la cartouche, on provoque la rotation des roulettes 13. L'une des dents de chacune de ces roulettes, formant alors élément d'accrochage, s'encliquette donc sous le bourrelet 1 d tandis que sa dent diamétralement opposée, formant alors élément de poussée, vient se disposer en face de l'exrémité inférieure du noyau central 4. En fin de vissage de ce dernier par rapport à la cheminée 7, on comprend aisément qu'on provoque le blocage positif de la dent d'accrochage sous le bourrelet 1 d par action de l'exrémité du noyau central 4 contre la dent de poussée.When we present the following device fig. 8 and 9 opposite the bead 1 d of the cartridge 1, the latter cooperates with one of the teeth of the rollers 13; when the movement of movement of the assembly 2-3 continues in the direction of the cartridge, the rollers 13 are caused to rotate. One of the teeth of each of these rollers, then forming a hooking element, engages therefore under the bead 1 d while its diametrically opposite tooth, then forming a thrust element, comes to be arranged opposite the lower end of the central core 4. At the end of screwing of the latter relative to the chimney 7, it is understood easily that positive locking of the hooking tooth is caused under the bead 1 d by action of the end of the central core 4 against the pushing tooth.

On notera que dans cette forme d'exécution le moyen de rendre indémontable la pièce annulaire 3 du noyau central 4 consiste en une goupille 15 rendue solidaire de la cheminée 7 et qui est engagée transversalement dans celle-ci de manière qu'elle se trouve dans la gorge 4a du noyau central.It will be noted that in this embodiment the means of making the annular part 3 of the central core 4 non-removable consists of a pin 15 made integral with the chimney 7 and which is engaged transversely in the latter so that it is in the groove 4a of the central core.

Dans la variante de fig. 10 la jupe 11 est pourvue d'une gorge intérieure 11 c dans laquellé est engagé un jonc circulaire élastique 16 qui constitue l'axe d'articulation des roulettes 13.In the variant of fig. 10 the skirt 11 is provided with an inner groove 11 c in which the elastic circular ring 16 is engaged, which constitutes the axis of articulation of the rollers 13.

Comme montré en fig. 11 on pourrait ménager dans la jupe 11 une gorge extérieure 11 d dans laquelle serait engagé le jonc 16.As shown in fig. 11 one could arrange in the skirt 11 an outer groove 11 d in which the rod 16 would be engaged.

Selon fig. 8 à 11, il est possible de modifier l'effort de désolidarisation de l'appareil et de la cartouche, en fonction du nombre de roulettes 13 et/ou de la forme et/ou de l'emplacement de l'axe d'articulation desdites roulettes.According to fig. 8 to 11, it is possible to modify the separation force of the device and the cartridge, depending on the number of rollers 13 and / or the shape and / or the location of the hinge pin said rollers.

On a représenté en fig. 12 un mode d'exécution préféré du système de fixation suivant l'invention. Le noyau central 4 comporte à sa partie inférieure une portée 4b de diamètre inférieur à celui à fond de filet de sa partie filetée et qui se termine par un chanfrein 4c. La portée 4b diminue donc de manière sensible la longueur filetée du noyau central 4.There is shown in fig. 12 a preferred embodiment of the fixing system according to the invention. The central core 4 has at its lower part a bearing 4b of diameter smaller than that at the bottom of the thread of its threaded part and which ends in a chamfer 4c. The bearing 4b therefore significantly reduces the threaded length of the central core 4.

La pièce annulaire 3 est réalisée sous la forme d'un organe moulé en une matière plastique appropriée. Elle comprend un écrou cylindrique 17 se prolongeant vers le bas par une douille 18 comportant quatre fentes radiales 19 de sorte que cette douille est constituée par quatre mors élastiques indépendants 20 reliés à l'écrou 17. La douille 18 est pourvue d'un alésage conique 21 ouvert vers le haut faisant suite à la partie taraudée de l'écrou 17 et qui se prolonge en direction du bas par un second alésage conique 22 à conicité plus importante; ainsi se trouve déterminé sur chaque mors un élément de poussée 23 sous la forme d'une surface oblique tournée vers l'intérieur. La périphérie extérieure de la douille 18, donc aussi chacun des mors 20, comporte une saillie formant talon d'accrochage 24 surmonté d'une collerette ou bec 25. Enfin l'écrou 17 est pourvu de deux ailettes 17a, 17b destinées à faciliter son actionnement.The annular part 3 is produced in the form of a member molded from a suitable plastic material. It comprises a cylindrical nut 17 extending downwards by a socket 18 comprising four radial slots 19 so that this socket is constituted by four independent elastic jaws 20 connected to the nut 17. The socket 18 is provided with a conical bore 21 open upwards following the threaded part of the nut 17 and which extends in the direction of the bottom by a second conical bore 22 with greater conicity; thus is determined on each jaw a pushing element 23 in the form of an oblique surface facing inward. The outer periphery of the sleeve 18, therefore also each of the jaws 20, has a projection forming a hooking heel 24 surmounted by a flange or spout 25. Finally, the nut 17 is provided with two fins 17a, 17b intended to facilitate its actuation.

La pièce annulaire 3 étant vissée partiellement ou non sur le filetage du noyau central 4, on peut engager élastiquement les talons d'accrochage 24 sous la partie intérieure du bourrelet 1 d de la cartouche 1. Si l'on immobilise angulairement la pièce annulaire 3 au moyen des ailettes 17a, 17b et qu'on visse le noyau central 4 dans ladite pièce, le chanfrein 4c de ce dernier vient à la fin du vissage porter contre l'alésage conique 22, ce qui entraîne un mouvement des mors 20 de manière centrifuge si bien que leurs talons d'accrochage 24 viennent se bloquer sous le bourrelet 1 d de la cartouche 1, de la même façon que le talon 9c des organes d'accrochage 9 décrits en référence à fig. 3.The annular part 3 being partially or not screwed onto the thread of the central core 4, the hooking heels 24 can be engaged elastically under the inner part of the bead 1 d of the cartridge 1. If the annular part 3 is angularly immobilized by means of the fins 17a, 17b and that the central core 4 is screwed into said part, the chamfer 4c of the latter comes at the end of the screwing to bear against the conical bore 22, which causes a movement of the jaws 20 so centrifugal so that their hooking heels 24 are blocked under the bead 1 d of the cartridge 1, in the same way as the heel 9c of the hooking members 9 described with reference to FIG. 3.

Là encore, conformément à fig. 12 et 13, il est possible de modifier l'effort de désolidarisation cartouche-appareil, en limitant la résistance mécanique des mors élastiques 20, la séparabilité de la'organe moulé 3 le rendant facilement replaçable.Again, according to fig. 12 and 13, it is possible to modify the cartridge-device separation force, by limiting the mechanical resistance of the elastic jaws 20, the separability of the molded member 3 making it easily replaceable.

Dans toutes les variantes décrites plus haut, lorsque le noyau central est dévissé par raport à la pièce annulaire, les organes d'accrochage sont libérés de l'action de blocage positif si bien qu'on peut aisément dégager élastiquement le système de fixation de la cartouche. Dans le cas illustré en fig. 12 et 13 on choisira de réaliser la pièce annulaire 3 en une matière plastique suffisamment rigide et élastique. A titre d'exemple non limitatif on peut citer le polypropylène comme matière susceptible de convenir particulièrement bien à sa réalisation.In all of the variants described above, when the central core is unscrewed relative to the annular part, the hooking members are released from the positive locking action so that the attachment system can easily be released elastically. cartridge. In the case illustrated in fig. 12 and 13 we will choose to make the annular part 3 in a sufficiently rigid and elastic plastic material. By way of nonlimiting example, mention may be made of polypropylene as a material capable of being particularly suitable for its production.

Il doit d'ailleurs être entendu que la description qui précède n'a été donnée qu'à titre d'exemple et qu'elle ne limite nullement le domaine de l'invention dont on ne sortirait pas en remplaçant les détails d'exécution décrits par tous autres équivalents.It should moreover be understood that the above description has been given only by way of example and that it in no way limits the field of the invention from which one would not depart by replacing the execution details described by all other equivalents.

Claims (12)

1. System for fixing an appliance (2) to a cartridge of fluid under pressure (1), possessing a sampling and/or filling valve (1e) and an annular rim (1d), which surrounds this valve, said fixing system comprising: a central core (4) integral with said appliance, possessing fluid sampling means (5), which are intended to interact with the valve (1 e) of said cartridge, an annular piece (3) surrounding the central core (4), possessing on its periphery several hooking members (9, 13, 20), which can be snapped under the annular rim (1d) of the cartridge (1), each hooking member possessing a hooking catch (9c, 14, 24), which is movable towards the recessed wall of said annular rim of the cartridge, means of displacing the central core (4) axially in relation to and within the annular piece (3), possessing, on the one hand, a tapping on the inside of the annular piece (3) and, on the other hand, a threading on the outside of the central core (4), with which said tapping interacts, characterised in that the hooking members (9, 13, 24) can be snapped on the inside of the annular rim (1d) of the cartridge (1) and each possess a means (9d, 13, 23) of positive locking of said catch (9c, 24) on the inside of and under said rim (1d), this positive locking means being actuated directly by the lower part of the central core (4), upon the axial displacement of the latter on the inside of the annular piece (3).
2. System according to Claim 1, characterised in that each hooking member consists of a claw-shaped hooking member (9), which is fixed at one end to the annular piece (3) and the opposite end of which takes the form of an oblique prolongation (9d), which constitutes said positive locking means and which extends at least partly beneath the lower part of the central core (4), said member (9) possessing an intermediate part shaped into a hooking catch (9c).
3. System according to Claim 2, characterised in that the annular piece (3) assumes the form of a bell (6), which possesses a tubular chimney (7), in which the tapping is made, said annular piece being provided with an opening (8) allowing the passage of each hooking member (9), which is riveted on the upper face of said bell.
4. System according to Claim 3, characterised in that the annular piece (3) possesses means (7c, 7d) to make it inseparable from the central core (4) of the appliance.
5. System according to Claim 4, characterised in that the top part of the central core (4) is provided with at least one peripheral groove (4a), in which at least one projecting part (7c, 7d), directed towards the inside of the chimney, is accommodated, the groove being provided with a height such that the piece can cause the positive locking of the hooking members (9).
6. System according to Claim 1, characterised in that each hooking member (9) consists of a pivoting element (13) possessing at least two teeth (14), the one constituting said hooking catch and the other, opposite, constituting said positive locking means.
7. System according to Claim 6, characterised in that each pivoting element (13) is mounted rotatably on a pin (12), which is held in a skirt (11) integral with the annular piece (3).
8. System according to Claim 6, characterised in that the pivoting elements (13) are mounted rotatably on a circular retaining ring (16), which is held in a groove (11 d) of the skirt (11) of the annular piece (3).
9. System according to Claim 8, characterised in that the retaining ring (16) is designed elastically, so as to hold itself in the groove (11d) made in the annular piece (3).
10. System according to Claim 8, characterised in that the retaining ring (16) is accommodated in an internal groove (11 c) made in the internal skirt (11) of the annular piece (3).
11. System according to Claim 1, characterised in that each hooking member has the form of an elastic jaw (20), which possesses outwardly a projection (24) constituting said hooking catch and inwardly a part with an oblique surface (22) constituting said positive locking means (23).
12. System according to Claim 11, characterised in that each hooking member (20) possesses, in addition, a nose (25), which is applied against the top of the annular rim (1 d) of the cartridge (1), when said member (20) is locked positively under the rim (1d).
EP78420012A 1977-10-28 1978-10-23 System for fixing an apparatus on a pressurized storage tank Expired EP0001960B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7733350A FR2407423A1 (en) 1977-10-28 1977-10-28 IMPROVEMENTS TO THE SYSTEMS FOR MOUNTING A DEVICE ON A PRESSURIZED FLUID CARTRIDGE
FR7733350 1977-10-28

Publications (2)

Publication Number Publication Date
EP0001960A1 EP0001960A1 (en) 1979-05-16
EP0001960B1 true EP0001960B1 (en) 1981-05-13

Family

ID=9197313

Family Applications (1)

Application Number Title Priority Date Filing Date
EP78420012A Expired EP0001960B1 (en) 1977-10-28 1978-10-23 System for fixing an apparatus on a pressurized storage tank

Country Status (6)

Country Link
EP (1) EP0001960B1 (en)
JP (1) JPS54102612A (en)
DE (1) DE2860701D1 (en)
ES (1) ES239019Y (en)
FR (1) FR2407423A1 (en)
IT (1) IT1099816B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3518627C3 (en) * 1985-05-23 1995-02-09 Ehrensperger C Ag Device for connecting an aerosol can having a valve to a spray gun
FR2610082B1 (en) * 1987-01-27 1989-03-24 Applic Gaz Sa COUPLING SYSTEM FOR AN APPARATUS AND A CARTRIDGE, AND GAS APPARATUS INCORPORATING SUCH A SYSTEM
FR2617941B1 (en) * 1987-07-07 1989-10-27 Applic Gaz Sa VALVE AND VALVE CONTAINER
FR2621981B1 (en) * 1987-10-20 1990-02-09 Applic Gaz Sa HEATING APPARATUS WITH CATALYTIC BURNER
FR2703757B1 (en) * 1993-04-09 1995-06-02 Applic Gaz Sa Standardized assembly for obtaining at least two different gas intake heads.
SE504453C2 (en) * 1994-07-15 1997-02-17 Primus Ab Appliance for kitchens, lamps or the like
JP4524025B2 (en) * 2000-07-14 2010-08-11 晃 山本 Instrument mounting device for cassette gas cylinder

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE625736A (en) * 1962-07-20
JPS4212396Y1 (en) * 1965-03-31 1967-07-12
US3580424A (en) * 1969-10-27 1971-05-25 Federal Auto Products Co Inc Dispensing valve for a sealed pressurized container
JPS4812966U (en) * 1971-06-23 1973-02-13
DE2318428C3 (en) * 1972-05-08 1975-09-11 Hermannus Johannus Oldenzaal Leeferink (Niederlande) Device for holding a replaceable gas cartridge
GB1576102A (en) * 1976-02-04 1980-10-01 Taymar Ltd Adaptors

Also Published As

Publication number Publication date
JPS54102612A (en) 1979-08-13
FR2407423A1 (en) 1979-05-25
DE2860701D1 (en) 1981-08-20
FR2407423B1 (en) 1980-06-27
IT7829174A0 (en) 1978-10-27
EP0001960A1 (en) 1979-05-16
JPS6227319B2 (en) 1987-06-13
ES239019U (en) 1978-12-16
IT1099816B (en) 1985-09-28
ES239019Y (en) 1979-05-16

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