EP1141974B1 - Device for linking doors between two chambers insulated from the outside environment - Google Patents

Device for linking doors between two chambers insulated from the outside environment Download PDF

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Publication number
EP1141974B1
EP1141974B1 EP99959468A EP99959468A EP1141974B1 EP 1141974 B1 EP1141974 B1 EP 1141974B1 EP 99959468 A EP99959468 A EP 99959468A EP 99959468 A EP99959468 A EP 99959468A EP 1141974 B1 EP1141974 B1 EP 1141974B1
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EP
European Patent Office
Prior art keywords
doors
door
flange
vacuum
source
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP99959468A
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German (de)
French (fr)
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EP1141974A1 (en
Inventor
Jean-Yves Porret
Jean-Pierre Grimard
Claude Imbert
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Becton Dickinson France SA
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Becton Dickinson France SA
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Publication of EP1141974A1 publication Critical patent/EP1141974A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L1/00—Enclosures; Chambers
    • B01L1/02—Air-pressure chambers; Air-locks therefor
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F7/00—Shielded cells or rooms
    • G21F7/005—Shielded passages through walls; Locks; Transferring devices between rooms
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F7/00—Shielded cells or rooms
    • G21F7/04—Shielded glove-boxes
    • G21F7/047—Shielded passages; Closing or transferring means between glove-boxes

Definitions

  • the invention relates to a device for connecting doors in a waterproof junction device between two isolated enclosures of the external environment, to transfer the contents of one of the speakers to the other speaker.
  • Constant or “contamination” means the characteristic that a substance must remain excluded, or in a limited amount or concentration in a given medium. This is by example of pathogens, or pollutants, biological or other, but also simple solid, liquid or gaseous particles that can be suspension in any fluid medium.
  • one of the enclosures hereinafter referred to as "A”
  • A consists of a clean room or sterile but it can also be moved
  • B the other speaker called hereinafter "B”
  • A consists of a clean room or sterile but it can also be moved
  • B the other speaker called hereinafter "B”
  • A consists of a clean room or sterile but it can also be moved
  • B the other speaker called hereinafter "B”
  • B is removable and transportable, for example for single use, and contains one or more objects, or a load to be transferred, in the position coupled to the leaktight connection device described below, by the passage established between the two enclosures, namely the transportable the fixed enclosure, for example to supply the latter with components or products required by production or production in progress in the room white, or conversely to evacuate waste or products of the said room.
  • the invention relates to a connecting device forming part of a more complex junction device, in accordance with the state of the art, and which will be described below, with reference to FIGS. 1 to 7, before any introduction and explanation of the present invention.
  • the invention therefore relates more particularly to a device, described from now on as belonging to the state of the art, in which the temporary coupling of doors 2 and 3 each carried by a frame frame-like frame, respectively 4 and 5, forms a "C" chamber.
  • One of these doors, namely that 2, is disposed on the opening 6 of a fixed enclosure "A”, isolated from the outside environment, while the other door, namely 3, is disposed in the opening of another enclosure "B”, also isolated from the outside environment.
  • the invention relates more particularly, but not exclusively, the application of this device to the connection between a speaker sterile "A”, and a transportable or mobile enclosure "B", for example, consisting of a transportable container formed by a material envelope 8, fixed on the flange 5 of the door 3.
  • the fixed enclosure “A” is closed by a door 2, generally circular, carried by an articulated arm 9 around an axis 10, for example vertical, with respect to the flange 4.
  • This door is provided with sealing means, such as a compressible annular seal 12 cooperating with a scope 11 of the flange 4 or vice versa.
  • the transportable enclosure “B” is closed by a door 3, generally circular but smaller in diameter than the opening arranged in the flange 4 for the door 2 of the fixed enclosure, in order to pass through this opening.
  • the door 3 is provided with sealing means with its flange 5, namely a compressible annular seal 14 carried by the flange and cooperating with a bearing 15, of the door 3, or vice versa.
  • Each of doors 2 and 3 is also associated with means locking in the closed position on its flange.
  • these locking means comprise a shaft 50 rotatably mounted in a bearing of the flange 4, a rotary latch 51, keyed on the end of the shaft disposed in the enclosure A, and a lever 52 keyed on the end of the shaft 50 protruding outside the the enclosure A.
  • the rotary latch 51 is pallet-shaped and can occupy either a position in which, as shown in FIG. a recess of the flange 4, a position in which it is radially outside this door to allow the movements of it.
  • the tree 50 also carries, wedged on him and going from the outside from the flange 4 to the lever 52, on the one hand, another rotary lock 53 able to wedge the flange 5 against the flange 4, and secondly, two radial fingers 54 and 55 fit to cooperate with the means for wedging the door 3 on its flange 5.
  • FIG. 6 shows that these different elements 51, 53, 54 and 55 are offset angularly relative to each other and to the lever 52.
  • the locking means of the door 3 on its flange 5 comprise two cylindrical pins 56, 57 engaged, with close friction and one after the other, respectively, in a blind bore 58 of the door 3 and in a bore 59, coaxial with the first and arranged radially in the flange 5.
  • the pins are only partially engaged so that that 57 projects outside the flange 5 and that the secant 56 the internal bore 5a of the flange 5 receiving the door 3 to ensure the locking the door on its flange.
  • a another pin 60 visible in FIG. 6, is disposed in a bore 61 of the flange, aligned with a blind bore 62 of the door 3.
  • the pin 60 is in the position shown in Figure 6, that is to say radially exceeds the flange 5 at one end, while its other end is flush with the bore 5a without penetrating the blind bore 62.
  • This pin 60 and those coaxial 56, 57 are angularly offset on both sides of the plane diameter containing the axis of rotation of the shaft 50 and arranged in the circular trajectories of the fingers 54 and 55 carried by this tree.
  • Such a device is generally associated with other devices similar angularly spaced on the periphery of the flange 4.
  • the flange 4 is secured to several fingers longitudinal projections projecting outwards and capable of cooperating with circular notches 64 formed in the periphery of the flange 5.
  • each of doors 2 and 3 is locked, on its flange 4 and 5, respectively, by the locks 51 and by the 56.
  • the flange 5 of the door 3 of the transportable enclosure "B” is brought, as shown in Figure 1, against that 4 of the door 2 of the fixed enclosure "A", where it is positioned approximately by the fingers 63, then definitively by engagement of a central boss 71 of the door 2 in a recess 75 of the door 3.
  • the sealing means respectively between the two flanges 4 and 5 and between the two doors 2 and 3, define two critical lines C1, C2, circular and continuous, sealing, lines whose integrity must absolutely be preserved to avoid any contamination by or to the outside environment, as well as by or to space "C” (see Fig. 4).
  • critical line we mean a line with residual contamination by the environment outside the two speakers put in communication. After mating and communication of the two speakers, this line is likely to come to contact of the atmosphere or fluid present in the passage established between two enclosures, or in contact with the product or products passing through said passage, and contaminate them.
  • Locking of the closure is then ensured by pivot the levers 52 in the opposite direction of the arrow 70 until depression pins 60 by the fingers 54, if this enclosure B is disposable, then by lowering the levers to their median position, represented in FIG. allow the locking of the door 2 on its flange 4 by the rotary locks 51.
  • the two speakers A and B are closed again hermetically and the enclosure B can be removed by causing the separation critical lines and the contact with the outside of the faces that until then were isolated.
  • connection between the two doors is provided by adhesion or magnetically, for example by at least one magnetic plate fixed in the part center of the outer face of the door 2 of the fixed enclosure "A", and by a another plate, magnetic or ferrous, fixed on the outside face 17 of the other gate 3, the magnetic attraction force generated between the two flaps is relatively low and depends on the manufacturing tolerances of these doors. Thus, it may happen that this attractive force is insufficient to ensure the appropriate compression of the seal 12 between the two doors by the circular range vis-à-vis, and therefore to ensure the tight connection of these two doors.
  • EP-A-0 730 907 discloses a connection device between two doors comprising channels which, formed in one of the doors and opening into a space formed between these two doors, are connectable to a source of vacuum to ensure the joining of these two front doors their phases, respectively, of separating their framework and opening pivot.
  • the vacuum supply of the channel network causes, by creating a vacuum in the internal space delimited between the two doors, the intimate plating of these last, with an effort that depends on the value of the surfaces facing each other and of the value of depression, but which, anyway, can be well greater than the value of a current magnetic attraction force.
  • the present invention aims to remedy this in providing a device for connecting the doors of a joining device between two insulated enclosures of the external environment, improving the security of the junction and subsequent maneuvers, ensuring the preservation of the initial state and for example the sterile state of the "A" enclosures and B".
  • the connecting device comprises, on a pipeline connecting the vacuum source to the network of channels in one of the doors, at least one sensor measuring the value of the depression in this pipeline and reacting on an alarm, when this depression does not reach a displayed or stored value.
  • the senor ensures automatic control of the connection between the doors and avoids accidental contamination due to lack of sealing. It improves considerably the security of the transfer of any products or liquids between the two speakers.
  • one of the doors is equipped with a zone circular cooperating with a seal of the other door, and defining the line critical internal sealing delimiting the internal space between the two doors, and said door comprises, near this circular area, a door recessed circular limiting the relative axial displacement of said door by compared to the other door and ensuring, as a result, controlled compression of the corresponding joint under the action of the depression.
  • the conduit the void in the network of channels in one of the doors is also connected to a source of compressed air with the interposition of a solenoid valve multivoies able, at the same time, to isolate the pipeline from the vacuum source and of the branch with sensor and to put this pipe in communication with the source of compressed air to send, in the space between the two doors, a flow of air under pressure favoring the separation of these doors.
  • This simple and inexpensive arrangement makes it possible to avoid having to take off the door of the mobile speaker B when it remains adherent to the door of the enclosure A, for example when the door of the enclosure B has not been completely locked in its dormant frame before removing the speaker B and remains stuck, while its enclosure is evacuated. It therefore removes the use of levers or screwdrivers inserted between the door and the door fixed to reach the takeoff of the moving door, with the risk to damage the seal of the fixed door.
  • An O-ring 36 is disposed in the joint plane between the arm 9 and the door 2 to prevent any leakage.
  • Channel 35 opens out of the face 18 of the door 2 in the zone of the latter which, when it is contiguous to the door 3, forms the internal tight space C, which must be ensured isolation from the external environment:
  • the channel 30 communicates with a tip 37 for the connection to a pipe 38 going to a vacuum source 39, for example to a electric vacuum pump preferably disposed outside the two enclosures.
  • the power supply circuit 40 of this pump comprises a control, such as a switch or switch 42, manually operated or automatic.
  • This contactor is preferably disposed out of the two speakers “A” and “B", and, for example, on the outside of the fixed speaker "A", close to the flange locking control means.
  • Line 38 is also connected by a bypass 43 to a sensor 44, of the vacuostat or other type, measuring the value of the depression in the pneumatic circuit, and reacting, by pneumatic means or on an alarm 45.
  • the sensor 44 can also be connected to a apparatus 46 for measuring depression, of the mechanical or electrical type.
  • the circular edge 16 of the door 3 cooperating with the seal 12 of the door 2, and defining the internal critical line C1 sealing of the internal space "C" is made on the periphery of the outer face 17 of this door 3, and is juxtaposed with a circular bearing surface 48, whose utility will be specified later.
  • the connecting device does not intervene in the maneuver locked coupling of the two doors 2 and 3, that after the flanges 4 and 5 have been locked to one another, ensuring, by compression of the seal 14, sealing the junction to the outside environment, as described in the preamble of the present description.
  • the circular zone 16 of the door 3 already comes into contact with the seal 12 of the door 2, while the adjacent circular reach 48 is not in perfect contact with the door 49 facing the door 2.
  • the line 38 and the channels 30, 34 and 35 deliver the depression in the "C" gap between two doors 2 and 3, which has the effect of causing the axial displacement of the door 3 on a very short stroke (strongly exaggerated in FIG. 11), until contact of its bearing 48 against the bearing 49 vis-à-vis the door 2.
  • the circular zone 16, defining the internal critical line C1 specific to the internal space "C”
  • compresses the portion of the seal 12 of the door 2 vis-à-vis and guarantees the obtaining of this critical line of sealing.
  • the depression created in the space "C” ensures the connection of the two doors 2 and 3.
  • the actuation of the contactor 42 may be manual or automatic, for example, if it is arranged. in the pivoting path of one of the levers 52.
  • the depression, in the pneumatic circuit going from the pump 39 to the space C, is measured by the sensor 44. If this value does not reach a reference value corresponding to the desired sealing of the span 16 on the seal 12, which results either from a bad positioning or a leak in because of the wear or an undesirable presence, the sensor 44 reacts on alarm 45 to inform the operator that the maneuver should not be continued placing in communication between the two speakers "A" and "B".
  • the sensor 44 can also react on electrical means, electronic or electromechanical prohibiting this setting in communication, for example by locking the door 2 of the fixed enclosure A.
  • This sensor thus guarantees the preservation of the initial state of these speakers or the outside environment, if it is these speakers that are contaminating.
  • This control of the integrity of the mobile critical line is particularly interesting, since it considerably improves the safety the sealing junction between the "A" and "B” loudspeakers.
  • the sensor 44 can also be used when joining two pregnant A and B, in particular in the context of a self-test procedure pneumatic circuit consisting of putting the circuit in depression to check either it is not clogged, or that said sensor is working properly.
  • vacuum connection device can be used alone, it may be advantageous to combine it with a magnetic binding device, if only to secure temporarily doors 2 and 3, after relative angular positioning of these last, but before the locking operations of flanges 4 and 5, and thus unlocking the doors 2 and 3 indicated above.
  • a magnetic link device includes, as shown 9, a magnet 72 disposed inside the central boss of the door 2 of FIG. the fixed speaker "A". This magnet is intended to cooperate with a wafer ferrous material 73, held in a groove 74 of a recess 75 formed in the door 3, vis-à-vis the central boss supra.
  • duct 38 is also connected, with the interposition of a solenoid valve multipath 80, with a branch 76 connected to either a source of compressed air 81 to an electric air pump 77.
  • the electrical supply circuit 78 the solenoid valve comprises a contactor 79.
  • the operator incorrectly locks the door 3 on its dormant frame 5 and that, after closing and locking the door 2 on its frame 4 and extracting the enclosure B, the door 3 remains stuck on the door 2, to release it just to activate the contactor 79.
  • This operation can be performed by human intervention specific or by an automatic action, for example related to the actuation unlocking levers.
  • the solenoid valve 80 then isolates the pipe 38 of the vacuum source 39 and the branch 45 equipped with the vacuum switch 44 and sets communication this line 38 with the source of compressed air. Air under pressure thus comes into the space C and exerts on the door 3 an effort facilitating its take off from the door 2.
  • This arrangement does not intervene in the junction maneuver, but, by facilitating the separation of doors and eliminating all recourse to tools to achieve this separation, it helps to preserve the integrity of joints and consequently the integrity of the critical line of sealing.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Clinical Laboratory Science (AREA)
  • Chemical & Material Sciences (AREA)
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  • Pressure Vessels And Lids Thereof (AREA)
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Abstract

This connecting device applies to a sealed connection device in which, firstly, each chamber, respectively a stationary chamber "A" and a transportable chamber "B" has at least one access opening equipped with a door (2, 3) cooperating with a flange (4, 5) with the interposition of sealing elements (12, 14), one (2) of the two doors being articulated to its flange (4), and secondly, the two doors (2, 3) have an element to lock their respective flanges (4, 5) and complementary connecting elements which allow them to be connected thereby forming, through contact of sealing elements (12, 16), an internal space "C" isolating their faces (17, 18) opposite each other from the external medium. The elements of connecting the two doors (2, 3) together comprise a network of ducts (30, 34, 35) formed at least in one of the doors and emerging, at one of its ends, from the external face (18) of the said door in the said sealed internal space "C", the said network being connected, at its other end, to a source (30) of vacuum.

Description

L'invention est relative à un dispositif de liaison de portes dans un dispositif de jonction étanche entre deux enceintes isolées du milieu extérieur, en vue du transfert du contenu de l'une des enceintes à l'autre enceinte.The invention relates to a device for connecting doors in a waterproof junction device between two isolated enclosures of the external environment, to transfer the contents of one of the speakers to the other speaker.

Aux fins de la présente description, et de l'interprétation des revendications en annexe, par "étanchéité", ou "étanche", on entend la caractéristique selon laquelle une paroi quelconque séparant deux milieux empêche ou limite tout transfert au travers de ladite paroi, d'une ou plusieurs substances de référence, par exemple dites contaminantes.For the purposes of this description, and the interpretation of claims in the Annex, by "sealing", or "waterproof" means the characteristic that any wall separating two media prevents or restricts any transfer through said wall, of one or more reference substances, for example so-called contaminating substances.

Par "contaminante" ou "contamination", on entend la caractéristique selon laquelle une substance doit demeurer exclue, ou dans une quantité ou concentration limitée, dans un milieu donné. Il s'agit par exemple d'agents pathogènes, ou polluants, biologiques ou autres, mais aussi de simples particules solides, liquides, ou gazeuses, pouvant être mises en suspension dans tout milieu fluide."Contaminant" or "contamination" means the characteristic that a substance must remain excluded, or in a limited amount or concentration in a given medium. This is by example of pathogens, or pollutants, biological or other, but also simple solid, liquid or gaseous particles that can be suspension in any fluid medium.

Plus particulièrement, mais de manière non exclusive, la présente invention sera décrite ci-après par référence à une application de type médical ou biologique, requérant d'éviter ou limiter toute contamination, y compris par des particules, en provenance du milieu extérieur. A titre d'exemple, l'une des enceintes, dénommée ci-après "A", est constituée par une salle blanche ou stérile mais elle peut aussi être déplaçable, et l'autre enceinte dénommée ci-après "B", est amovible et transportable, par exemple à usage unique, et contient un ou des objets, ou une charge à transférer, dans la position accouplée du dispositif de jonction étanche décrit ci-après, par le passage ainsi établi entre les deux enceintes, à savoir de l'enceinte transportable à l'enceinte fixe, par exemple pour approvisionner cette dernière en composants ou produits requis par une fabrication ou production en cours dans la salle blanche, ou à l'inverse pour évacuer des déchets ou des produits de ladite salle.More particularly, but not exclusively, this The invention will be described hereinafter with reference to a medical type application. or biological, requiring the avoidance or limitation of any contamination, including particles, from the external environment. For example, one of the enclosures, hereinafter referred to as "A", consists of a clean room or sterile but it can also be moved, and the other speaker called hereinafter "B", is removable and transportable, for example for single use, and contains one or more objects, or a load to be transferred, in the position coupled to the leaktight connection device described below, by the passage established between the two enclosures, namely the transportable the fixed enclosure, for example to supply the latter with components or products required by production or production in progress in the room white, or conversely to evacuate waste or products of the said room.

L'invention concerne un dispositif de liaison faisant partie d'un dispositif de jonction plus complexe, conforme à l'état de la technique, et qui va être préalablement décrit ci-après, en référence aux figures 1 à 7, avant toute introduction et explication de la présente invention. The invention relates to a connecting device forming part of a more complex junction device, in accordance with the state of the art, and which will be described below, with reference to FIGS. 1 to 7, before any introduction and explanation of the present invention.

De tels dispositifs de jonction étanche sont utilisés couramment dans de nombreux secteurs de l'industrie et de la recherche, pratiquement à chaque fois qu'il est nécessaire d'isoler une zone déterminée pour former une enceinte de confinement, soit en raison du caractère dangereux ou contaminant de l'atmosphère ou des produits contenus dans cette zone, soit au contraire parce que l'atmosphère stérile contenue dans cette zone risque d'être contaminée par l'air ambiant. De telles situations se présentent notamment dans les domaines nucléaires, électroniques, pharmaceutiques et médicaux.Such watertight junction devices are commonly used in many sectors of industry and research, virtually whenever it is necessary to isolate a specific area to form a containment, either because of the dangerous nature or contaminant from the atmosphere or products contained in that area, on the contrary, because the sterile atmosphere contained in this risk zone to be contaminated by the ambient air. Such situations arise particularly in the nuclear, electronic, pharmaceutical and medical.

L'invention concerne donc plus spécialement un dispositif, décrit dès maintenant car appartenant à l'état de la technique, dans lequel l'accouplement temporaire des portes 2 et 3 portées chacune par un cadre dormant en forme de bride, respectivement 4 et 5, forme une chambre "C". L'une de ces portes, à savoir celle 2, est disposée sur l'ouverture 6 d'une enceinte fixe "A", isolée du milieu extérieur, tandis que l'autre porte, à savoir celle 3, est disposée dans l'ouverture d'une autre enceinte "B", également isolée du milieu extérieur. L'invention concerne plus particulièrement, mais non exclusivement, l'application de ce dispositif à la liaison entre une enceinte stérile "A", et une enceinte transportable ou mobile "B", par exemple, constituée par un conteneur transportable formé par une enveloppe en-matière synthétique 8, fixée sur la bride 5 de la porte 3.The invention therefore relates more particularly to a device, described from now on as belonging to the state of the art, in which the temporary coupling of doors 2 and 3 each carried by a frame frame-like frame, respectively 4 and 5, forms a "C" chamber. One of these doors, namely that 2, is disposed on the opening 6 of a fixed enclosure "A", isolated from the outside environment, while the other door, namely 3, is disposed in the opening of another enclosure "B", also isolated from the outside environment. The invention relates more particularly, but not exclusively, the application of this device to the connection between a speaker sterile "A", and a transportable or mobile enclosure "B", for example, consisting of a transportable container formed by a material envelope 8, fixed on the flange 5 of the door 3.

Avec ce dispositif de jonction étanche, l'enceinte fixe "A" est fermée par une porte 2, en général circulaire, portée par un bras 9 articulé autour d'un axe 10, par exemple vertical, par rapport à la bride 4. Cette porte est munie de moyens d'étanchéité, tels qu'un joint annulaire compressible 12 coopérant avec une portée 11 de la bride 4 ou inversement.With this waterproof junction device, the fixed enclosure "A" is closed by a door 2, generally circular, carried by an articulated arm 9 around an axis 10, for example vertical, with respect to the flange 4. This door is provided with sealing means, such as a compressible annular seal 12 cooperating with a scope 11 of the flange 4 or vice versa.

De même, l'enceinte transportable "B" est fermée par une porte 3, en général circulaire mais de plus petite dimension diamétrale que l'ouverture ménagée dans la bride 4 pour la porte 2 de l'enceinte fixe, pour pouvoir passer à travers cette ouverture. La porte 3 est munie de moyens d'étanchéité avec sa bride 5, à savoir un joint annulaire compressible 14 porté par la bride et coopérant avec une portée 15, de la porte 3, ou inversement.Similarly, the transportable enclosure "B" is closed by a door 3, generally circular but smaller in diameter than the opening arranged in the flange 4 for the door 2 of the fixed enclosure, in order to pass through this opening. The door 3 is provided with sealing means with its flange 5, namely a compressible annular seal 14 carried by the flange and cooperating with a bearing 15, of the door 3, or vice versa.

Chacune des portes 2 et 3 est également associée à des moyens de verrouillage en position fermée sur sa bride. Dans la forme d'exécution représentée aux figures 5 et 6, définies ci-après, ces moyens de verrouillage comprennent un arbre 50 monté libre en rotation dans un palier de la bride 4, un verrou rotatif 51, calé sur l'extrémité de l'arbre disposée dans l'enceinte A, et un levier 52 calé sur l'extrémité de l'arbre 50 qui dépasse à l'extérieur de l'enceinte A. Le verrou rotatif 51 est en forme de palette et peut occuper soit une position dans laquelle, comme montré figure 5, il plaque la porte 2 dans un embrèvement de la bride 4, soit une position dans laquelle il est radialement à l'extérieur de cette porte pour autoriser les mouvements de celle-ci.Each of doors 2 and 3 is also associated with means locking in the closed position on its flange. In the form of execution represented in FIGS. 5 and 6, defined below, these locking means comprise a shaft 50 rotatably mounted in a bearing of the flange 4, a rotary latch 51, keyed on the end of the shaft disposed in the enclosure A, and a lever 52 keyed on the end of the shaft 50 protruding outside the the enclosure A. The rotary latch 51 is pallet-shaped and can occupy either a position in which, as shown in FIG. a recess of the flange 4, a position in which it is radially outside this door to allow the movements of it.

L'arbre 50 porte également, calé sur lui et en allant de l'extérieur de la bride 4 vers le levier 52, d'une part, un autre verrou rotatif 53 apte à caler la bride 5 contre la bride 4, et d'autre part, deux doigts radiaux 54 et 55 aptes à coopérer avec les moyens de calage de la porte 3 sur sa bride 5. La figure 6 montre que ces différents éléments 51, 53, 54 et 55 sont décalés angulairement les uns par rapport aux autres et par rapport au levier 52.The tree 50 also carries, wedged on him and going from the outside from the flange 4 to the lever 52, on the one hand, another rotary lock 53 able to wedge the flange 5 against the flange 4, and secondly, two radial fingers 54 and 55 fit to cooperate with the means for wedging the door 3 on its flange 5. FIG. 6 shows that these different elements 51, 53, 54 and 55 are offset angularly relative to each other and to the lever 52.

Les moyens de verrouillage de la porte 3 sur sa bride 5 comprennent deux goupilles cylindriques 56, 57 engagées, à frottement serré et l'une à la suite de l'autre, respectivement, dans un alésage borgne 58 de la porte 3 et dans un alésage 59, coaxial au premier et ménagé radialement dans la bride 5. Les goupilles ne sont-engagées que partiellement de manière que celle 57 fasse saillie à l'extérieur de la bride 5 et que celle 56 sécante l'alésage interne 5a de la bride 5 recevant la porte 3 pour assurer le verrouillage de la porte sur sa bride. Si le conteneur est à usage unique, une autre goupille 60, visible figure 6, est disposée dans un alésage 61 de la bride, aligné avec un alésage borgne 62 de la porte 3. Au départ, la goupille 60 est dans la position représentée figure 6, c'est-à-dire dépasse radialement de la bride 5 par une extrémité, tandis que son autre extrémité affleure l'alésage 5a sans pénétrer dans l'alésage borgne 62. Cette goupille 60 et celles coaxiales 56, 57 sont décalées angulairement de part et d'autre du plan diamétral contenant l'axe de rotation de l'arbre 50 et disposées dans les trajectoires circulaires des doigts 54 et 55 portés par cet arbre.The locking means of the door 3 on its flange 5 comprise two cylindrical pins 56, 57 engaged, with close friction and one after the other, respectively, in a blind bore 58 of the door 3 and in a bore 59, coaxial with the first and arranged radially in the flange 5. The pins are only partially engaged so that that 57 projects outside the flange 5 and that the secant 56 the internal bore 5a of the flange 5 receiving the door 3 to ensure the locking the door on its flange. If the container is for single use, a another pin 60, visible in FIG. 6, is disposed in a bore 61 of the flange, aligned with a blind bore 62 of the door 3. Initially, the pin 60 is in the position shown in Figure 6, that is to say radially exceeds the flange 5 at one end, while its other end is flush with the bore 5a without penetrating the blind bore 62. This pin 60 and those coaxial 56, 57 are angularly offset on both sides of the plane diameter containing the axis of rotation of the shaft 50 and arranged in the circular trajectories of the fingers 54 and 55 carried by this tree.

Un tel dispositif est en général associé à d'autres dispositifs similaires espacés angulairement sur la périphérie de la bride 4.Such a device is generally associated with other devices similar angularly spaced on the periphery of the flange 4.

Enfin, pour faciliter le positionnement de la bride 5 de l'enceinte amovible ou conteneur B par rapport à celle 4 de l'enceinte fixe A, et comme montré à la figure 7, la bride 4 est solidaire de plusieurs doigts longitudinaux 63 saillant vers l'extérieur et aptes à coopérer avec des échancrures circulaires 64 ménagées dans la périphérie de la bride 5. Finally, to facilitate the positioning of the flange 5 of the enclosure removable or container B relative to that 4 of the fixed enclosure A, and as shown in Figure 7, the flange 4 is secured to several fingers longitudinal projections projecting outwards and capable of cooperating with circular notches 64 formed in the periphery of the flange 5.

En l'absence de tout transfert, chacune des portes 2 et 3 est verrouillée, sur sa bride 4 et 5, respectivement, par les verrous 51 et par les goupilles 56. Lorsqu'il s'agit de transférer le contenu d'une enceinte dans l'autre, et par exemple celui de l'enceinte transportable "B" dans l'enceinte fixe "A", la bride 5 de la porte 3 de l'enceinte transportable "B" est amenée, comme montré figure 1, contre celle 4 de la porte 2 de l'enceinte fixe "A", où elle est positionnée approximativement par les doigts 63, puis définitivement par engagement d'un bossage central 71 de la porte 2 dans un embrèvement 75 de la porte 3.In the absence of any transfer, each of doors 2 and 3 is locked, on its flange 4 and 5, respectively, by the locks 51 and by the 56. When it comes to transferring the contents of a speaker into the other, and for example that of the transportable enclosure "B" in the fixed enclosure "A", the flange 5 of the door 3 of the transportable enclosure "B" is brought, as shown in Figure 1, against that 4 of the door 2 of the fixed enclosure "A", where it is positioned approximately by the fingers 63, then definitively by engagement of a central boss 71 of the door 2 in a recess 75 of the door 3.

Le pivotement des leviers 52 dans le sens de la flèche 70 de figure 6 provoque simultanément le verrouillage de la bride 5 sur la bride 4, le déverrouillage de la porte 2 par le verrou rotatif 51 et le déverrouillage de la porte 3 par rapport à sa bride 5 par enfoncement des goupilles 56 et 57 au moyen des doigts 55 : cet enfoncement amène la zone de contact entre les goupilles 56, 57 au niveau de l'alésage 5a de la bride et libère ainsi la porte 3.The pivoting of the levers 52 in the direction of the arrow 70 of FIG. 6 simultaneously causes locking of the flange 5 on the flange 4, the unlocking the door 2 by the rotary latch 51 and unlocking the door 3 relative to its flange 5 by depressing the pins 56 and 57 to means of the fingers 55: this depression brings the contact zone between the pins 56, 57 at the bore 5a of the flange and thus releases the door 3.

Dans cette position représentée à la figure 3, le joint annulaire 14 porté par la bride 5 est en contact d'étanchéité contre une portée circulaire 13 de la bride 4 (figure 2), en isolant ainsi du milieu extérieur, l'intérieur de la zone de jonction entre les deux enceintes "A" et "B". De même, l'autre joint annulaire 12 est en contact d'étanchéité avec la porte 3, et plus précisément avec une arête circulaire 16 de celle-ci, en isolant ainsi l'intervalle entre les deux portes 2 et 3, c'est-à-dire l'espace "C". Grâce à cela, les faces 17 et 18 des portes, qui jusqu'alors étaient en contact avec le milieu extérieur, sont désormais confinées dans cet espace C, en évitant ainsi que ces faces puissent contaminer ultérieurement le volume intérieur formé par la réunion étanche des deux enceintes "A" et "B". Dans le cas de transfert de produits contaminants, le confinement de cet espace évite également que les deux faces 17 et 18 qui, après le transfert, seront à nouveau en contact avec l'extérieur, puissent contaminer le milieu extérieur.In this position shown in FIG. 3, the annular seal 14 carried by the flange 5 is in sealing contact against a circular bearing 13 of the flange 4 (FIG. 2), thus isolating from the outside environment, the inside of the junction area between the two speakers "A" and "B". Similarly, the other seal ring 12 is in sealing contact with the door 3, and more precisely with a circular edge 16 thereof, thereby isolating the gap between two doors 2 and 3, that is to say the space "C". Thanks to this, the faces 17 and 18 doors, which until then were in contact with the external environment, are now confined in this space C, thus avoiding that these faces may later contaminate the internal volume formed by the meeting two speakers "A" and "B". In the case of transfer of products contaminants, the confinement of this space also prevents both faces 17 and 18 which, after the transfer, will be in contact again with outside, can contaminate the external environment.

Il ressort de ce qui précède que les moyens d'étanchéité, respectivement entre les deux brides 4 et 5 et entre les deux portes 2 et 3, définissent deux lignes dites critiques C1,C2, circulaires et continues, d'étanchéité, lignes dont l'intégrité doit absolument être conservée pour éviter toute contamination par ou vers le milieu extérieur, de même que par ou vers l'espace "C" (voir fig. 4). It follows from the foregoing that the sealing means, respectively between the two flanges 4 and 5 and between the two doors 2 and 3, define two critical lines C1, C2, circular and continuous, sealing, lines whose integrity must absolutely be preserved to avoid any contamination by or to the outside environment, as well as by or to space "C" (see Fig. 4).

Par "ligne critique", et comme l'homme du métier le sait bien, on entend une ligne à contamination résiduelle par le milieu extérieur aux deux enceintes mises en communication. Après l'accouplement et mise en communication des deux enceintes, cette ligne est susceptible de venir au contact de l'atmosphère ou fluide présent dans le passage établi entre les deux enceintes, ou au contact du ou des produits traversant ledit passage, et de les contaminer.By "critical line", and as the person skilled in the art knows, we mean a line with residual contamination by the environment outside the two speakers put in communication. After mating and communication of the two speakers, this line is likely to come to contact of the atmosphere or fluid present in the passage established between two enclosures, or in contact with the product or products passing through said passage, and contaminate them.

Pendant ces manoeuvres, des moyens de liaison complémentaire décrits plus loin et équipant les faces extérieures des deux portes 2 et 3 s'accouplent, et assurent une solidarisation de ces dernières, telle que les mouvements d'ouverture et de fermeture de la porte 2 de l'enceinte fixe "A" se transmettent à la porte 3 de l'enceinte transportable "B".During these maneuvers, additional liaison means described later and equipping the outer faces of the two doors 2 and 3 mate, and provide a solidarization of the latter, such as opening and closing movements of the door 2 of the fixed enclosure "A" is transmit to the door 3 of the transportable enclosure "B".

Après déverrouillage des deux portes 2 et 3, par rapport à leurs brides respectives 4, 5, il peut être procédé à la mise en communication des deux enceintes"A" et "B" par pivotement de la porte 2 vers l'intérieur de l'enceinte fixe "A", comme montré à la figure 4. Ce mouvement dégage l'ouverture 4a de la bride 4 et, par la liaison entre les deux portes 2 et 3, entraíne celle 3, qui traverse cette ouverture 4a et pénètre dans l'enceinte fixe "A".After unlocking the two doors 2 and 3, with respect to their respective flanges 4, 5, it is possible to place the two speakers "A" and "B" by pivoting the door 2 towards the inside of the fixed speaker "A", as shown in Figure 4. This movement clears the opening 4a of the flange 4 and, by the connection between the two doors 2 and 3, 3 leads, which passes through this opening 4a and enters the enclosure fixed "A".

Après transfert par exemple du contenu de l'enceinte transportable "B" dans l'enceinte fixe "A", les portes sont ramenées en position d'obturation.After transfer for example of the content of the transportable enclosure "B" in the fixed enclosure "A", the doors are returned to the closed position.

Le verrouillage de la fermeture est ensuite assuré en faisant pivoter les leviers 52 dans le sens inverse de la flèche 70 jusqu'à enfoncement des goupilles 60 par les doigts 54, si cette enceinte B est à usage unique, puis en ramenant les leviers dans leur position médiane, représentée figure 6, pour permettre le verrouillage de la porte 2 sur sa bride 4 par les verrous rotatifs 51.Locking of the closure is then ensured by pivot the levers 52 in the opposite direction of the arrow 70 until depression pins 60 by the fingers 54, if this enclosure B is disposable, then by lowering the levers to their median position, represented in FIG. allow the locking of the door 2 on its flange 4 by the rotary locks 51.

A ce stade, les deux enceintes A et B sont à nouveau fermées hermétiquement et l'enceinte B peut être retirée en entraínant la séparation des lignes critiques et la mise en contact avec l'extérieur des faces qui jusqu'alors en étaient isolées.At this point, the two speakers A and B are closed again hermetically and the enclosure B can be removed by causing the separation critical lines and the contact with the outside of the faces that until then were isolated.

Pour une description plus complète du dispositif de jonction étanche, on se réfèrera en tant que de besoin, au brevet français FR-A-2 721 289 au nom de IDC ISOLATEUR DENOMINATEUR COMMUN.For a more complete description of the connecting device waterproof, we will refer as necessary to the French patent FR-A-2 721 289 in the name of IDC ISOLATOR COMMON DENOMINATOR.

Ce mode de jonction étanche entre deux -enceintes isolées du milieu extérieur donne entière satisfaction, mais peut être amélioré en ce qui concerne la liaison temporaire entre les portes. This mode of watertight junction between two isolated enclosures of the external environment gives complete satisfaction, but can be improved with regard to relates to the temporary connection between the doors.

Ainsi, lorsque cette liaison est assurée par des ergots radiaux ou baïonnettes saillant de l'une des portes et pénétrant dans des encoches de l'autre porte, la rotation nécessaire à l'accouplement et au désaccouplement des deux portes est généralement réalisée par entraínement en rotation de la porte de l'enceinte transportable "B", et par exemple du conteneur, par rapport à l'enceinte fixe "A", ce qui n'est pas toujours commode et exige un effort humain en rapport avec la masse de ce conteneur. Par ailleurs, cette rotation entraíne, par frottement des portées circulaires d'étanchéité sur les joints correspondants, des usures pouvant générer des particules contaminantes ou engendrer des fuites favorisant une contamination, bactérienne ou autre.Thus, when this connection is provided by radial lugs or bayonets protruding from one of the doors and penetrating into notches of the other door, the rotation required for coupling and uncoupling both doors is usually made by rotating the door of the transportable enclosure "B", and for example the container, in relation to to the fixed enclosure "A", which is not always convenient and requires effort human in relation to the mass of this container. Moreover, this rotation drive, by friction of the circular sealing surfaces on the joints corresponding, wear that can generate contaminating particles or generate leaks favoring contamination, bacterial or other.

Le recours à des lubrifiants pour réduire cette usure constitue également une source de contamination.The use of lubricants to reduce this wear is also a source of contamination.

Lorsque, comme décrit dans le document FR-A-2 721 289, la liaison entre les deux portes est assurée par adhérence ou magnétiquement, par exemple par au moins une plaquette magnétique fixée dans la partie centrale de la face extérieure de la porte 2 de l'enceinte fixe "A", et par une autre plaque, magnétique ou ferreuse, fixée sur la face extérieure 17 de l'autre porte 3, la force d'attraction magnétique générée entre les deux volets est relativement faible et dépend des tolérances de fabrication de ces portes. Ainsi, il peut arriver que cette force d'attraction soit insuffisante pour assurer la compression appropriée du joint d'étanchéité 12 entre les deux portes par la portée circulaire en vis-à-vis, et donc pour assurer la liaison étanche de ces deux portes. De même, lors des mouvements d'ouverture, il peut arriver, en particulier lorsque l'enceinte transportable B est sous vide partiel, que la porte 3 de cette enceinte "B" se désolidarise de celle 2 de l'enceinte fixe "A" en ouvrant la chambre "C" et donc en provoquant la contamination du volume intérieur des deux enceintes "A" et "B", et surtout la contamination de l'enceinte fixe "A".When, as described in document FR-A-2 721 289, the connection between the two doors is provided by adhesion or magnetically, for example by at least one magnetic plate fixed in the part center of the outer face of the door 2 of the fixed enclosure "A", and by a another plate, magnetic or ferrous, fixed on the outside face 17 of the other gate 3, the magnetic attraction force generated between the two flaps is relatively low and depends on the manufacturing tolerances of these doors. Thus, it may happen that this attractive force is insufficient to ensure the appropriate compression of the seal 12 between the two doors by the circular range vis-à-vis, and therefore to ensure the tight connection of these two doors. In the same way, during the opening movements, it can happen, in particular when the transportable enclosure B is under partial vacuum, that the door 3 of this enclosure "B" disengages from that 2 of the fixed enclosure "A" in opening chamber "C" and thus causing contamination of the volume inside the two "A" and "B" enclosures, and especially the contamination of the fixed speaker "A".

Le document EP-A-0 730 907 décrit un dispositif de liaison entre deux portes comprenant des canaux qui, ménagés dans l'une des portes et débouchant dans un espace formé entre ces deux portes, sont raccordables à une source de vide pour assurer la solidarisation de ces deux portes avant leurs phases, respectivement, de désolidarisation de leur cadre et de pivotement d'ouverture.EP-A-0 730 907 discloses a connection device between two doors comprising channels which, formed in one of the doors and opening into a space formed between these two doors, are connectable to a source of vacuum to ensure the joining of these two front doors their phases, respectively, of separating their framework and opening pivot.

Ainsi, dès qu'est assurée la jonction étanche entre les deux portes, l'alimentation en vide du réseau de canaux provoque, par création d'un vide dans l'espace interne délimité entre les deux portes, le plaquage intime de ces dernières, avec un effort qui dépend de la valeur des surfaces en vis-à-vis et de la valeur de la dépression, mais qui, de toute façon, peut être bien supérieur à la valeur d'un effort d'attraction magnétique courant.Thus, as soon as the sealed connection between the two doors is assured, the vacuum supply of the channel network causes, by creating a vacuum in the internal space delimited between the two doors, the intimate plating of these last, with an effort that depends on the value of the surfaces facing each other and of the value of depression, but which, anyway, can be well greater than the value of a current magnetic attraction force.

Ce mode de liaison présente également les avantages suivants :

  • il ne nécessite aucun mouvement angulaire relatif entre deux portes respectives, et n'entraíne aucune usure des joints d'étanchéité, donc ne génère pratiquement pas de particules contaminantes, et n'exige pas de lubrification ;
  • en augmentant la durée des moyens d'étanchéité, il réduit les contraintes liées à leur délicat remplacement ;
  • il est commode et pratiquement immédiat, puisqu'actif dès que la dépression est établie dans le réseau de canaux et dans l'espace interne connectés à la source de vide.
This connection mode also has the following advantages:
  • it requires no relative angular movement between two respective doors, and causes no wear of the seals, so generates virtually no contaminating particles, and does not require lubrication;
  • by increasing the duration of the sealing means, it reduces the constraints associated with their delicate replacement;
  • it is convenient and practically immediate, since active as soon as the depression is established in the network of channels and in the internal space connected to the vacuum source.

Toutefois, si la ligne critique d'étanchéité interne entre les deux portes est rompue par exemple en raison, soit d'un mauvais positionnement, soit d'une usure des moyens d'étanchéité, et permet néanmoins au vide d'assurer la liaison entre les deux portes, il existe un risque de contamination accidentelle d'autant plus dommageable qu'il est indétectable.However, if the critical line of internal sealing between the two doors is broken for example because of either a bad positioning, either of a wear of the sealing means, and nevertheless allows the vacuum to ensure the connection between the two doors, there is a risk of contamination accidental all the more damaging because it is undetectable.

La présente invention a pour objet de remédier à cela en fournissant un dispositif de liaison des portes d'un dispositif de jonction étanche entre deux enceintes isolées du milieu extérieur, améliorant la sécurité de la jonction et des manoeuvres ultérieures, en garantissant la préservation de l'état initial et par exemple de l'état stérile des enceintes "A" et "B".The present invention aims to remedy this in providing a device for connecting the doors of a joining device between two insulated enclosures of the external environment, improving the security of the junction and subsequent maneuvers, ensuring the preservation of the initial state and for example the sterile state of the "A" enclosures and B".

A cet effet, le dispositif de liaison selon l'invention, comprend, sur une canalisation reliant la source de vide au réseau de canaux ménagé dans l'une des portes, au moins un capteur mesurant la valeur de la dépression dans cette canalisation et réagissant sur une alarme, lorsque cette dépression n'atteint pas une valeur affichée, ou mémorisée.For this purpose, the connecting device according to the invention comprises, on a pipeline connecting the vacuum source to the network of channels in one of the doors, at least one sensor measuring the value of the depression in this pipeline and reacting on an alarm, when this depression does not reach a displayed or stored value.

Lors de chaque manoeuvre de jonction entre deux enceintes, le capteur assure un contrôle automatique de la liaison entre les portes et évite toute contamination accidentelle par manque d'étanchéité. Cela améliore considérablement la sécurité du transfert de produits ou liquides quelconques entre les deux enceintes. During each junction operation between two speakers, the sensor ensures automatic control of the connection between the doors and avoids accidental contamination due to lack of sealing. It improves considerably the security of the transfer of any products or liquids between the two speakers.

Avantageusement, l'une des portes est équipée d'une zone circulaire coopérant avec un joint de l'autre porte, et définissant la ligne critique d'étanchéité intérieure délimitant l'espace interne entre les deux portes, et ladite porte comporte, près de cette zone circulaire, une portée circulaire en retrait limitant le déplacement axial relatif de ladite porte par rapport à l'autre porte et assurant, en conséquence, la compression contrôlée du joint correspondant sous l'action de la dépression.Advantageously, one of the doors is equipped with a zone circular cooperating with a seal of the other door, and defining the line critical internal sealing delimiting the internal space between the two doors, and said door comprises, near this circular area, a door recessed circular limiting the relative axial displacement of said door by compared to the other door and ensuring, as a result, controlled compression of the corresponding joint under the action of the depression.

Dans une forme d'exécution de l'invention, la canalisation amenant le vide au réseau de canaux ménagés dans l'une des portes est également reliée à une source d'air comprimé avec interposition d'une électrovanne multivoies apte, simultanément, à isoler la canalisation de la source de vide et de la branche avec capteur et à mettre cette canalisation en communication avec la source d'air comprimé pour envoyer, dans l'espace entre les deux portes, un flux d'air sous pression favorisant la désolidarisation de ces portes.In one embodiment of the invention, the conduit the void in the network of channels in one of the doors is also connected to a source of compressed air with the interposition of a solenoid valve multivoies able, at the same time, to isolate the pipeline from the vacuum source and of the branch with sensor and to put this pipe in communication with the source of compressed air to send, in the space between the two doors, a flow of air under pressure favoring the separation of these doors.

Cet aménagement simple et peu onéreux permet d'éviter d'avoir à décoller la porte de l'enceinte mobile B lorsqu'elle reste adhérente à la porte de l'enceinte A, par exemple lorsque la porte de l'enceinte B n'a pas été complètement verrouillée dans son cadre dormant avant retrait de l'enceinte B et reste collée, alors que son enceinte est évacuée. Il supprime donc le recours à des leviers ou tournevis insérés entre la porte et le point de porte fixe pour parvenir au décollage de la porte mobile, avec le risque d'endommager le joint de la porte fixe.This simple and inexpensive arrangement makes it possible to avoid having to take off the door of the mobile speaker B when it remains adherent to the door of the enclosure A, for example when the door of the enclosure B has not been completely locked in its dormant frame before removing the speaker B and remains stuck, while its enclosure is evacuated. It therefore removes the use of levers or screwdrivers inserted between the door and the door fixed to reach the takeoff of the moving door, with the risk to damage the seal of the fixed door.

L'invention sera mieux comprise à l'aide de la description qui suit en référence au dessin schématique annexé, représentant aux figures 1 à 7 un dispositif de jonction selon l'état de la technique et aux figures 8 à 11 une forme d'exécution du dispositif selon l'invention.

  • Figures 1, 3 et 4 sont des vues en coupe diamétrale d'un dispositif de jonction étanche entre deux enceintes isolées du milieu extérieur, respectivement, lors du positionnement en vis-à-vis des portes des deux enceintes, après jonction verrouillée de ces portes, et après ouverture de ces deux portes.
  • Figure 2 est une vue partielle en coupe, montrant à échelle agrandie, une forme d'exécution des moyens d'étanchéité entre les deux portes.
  • Figure 5 est une vue partielle en coupe suivant V-V de figure 6 montrant, à échelle agrandie, une forme d'exécution des moyens de verrouillage des brides entre elles et des moyens de verrouillage de chaque porte sur sa bride.
  • Figure 6 est une vue en coupe partielle suivant VI-VI de figure 5.
  • Figure 7 est une vue partielle en coupe montrant à échelle agrandie une forme d'exécution des moyens de positionnement de l'enceinte amovible sur l'enceinte fixe.
  • Figure 8 est une vue de face en élévation d'une porte selon l'invention.
  • Figure 9 en est une vue suivant IX-IX de figure 8, montrant à échelle agrandie, la porte de figure 8, lorsqu'elle est en phase de liaison avec celle d'une enceinte transportable.
  • Figures 10 et 11 sont des vues partielles, en coupe transversale, montrant à échelle agrandie, une forme d'exécution des moyens d'étanchéité selon l'invention, délimitant l'espace interne entre les deux portes.
    • The invention will be better understood with the aid of the description which follows with reference to the appended schematic drawing, showing in FIGS. 1 to 7 a junction device according to the state of the art and in FIGS. of the device according to the invention.
  • Figures 1, 3 and 4 are diametral sectional views of a sealed connection device between two insulated enclosures of the external environment, respectively, when positioning vis-à-vis the doors of the two speakers, after locked junction of these doors , and after opening these two doors.
  • Figure 2 is a partial sectional view showing on an enlarged scale, an embodiment of the sealing means between the two doors.
  • Figure 5 is a partial sectional view along VV of Figure 6 showing, on an enlarged scale, an embodiment of the flange locking means therebetween and locking means of each door on its flange.
  • Figure 6 is a partial sectional view along VI-VI of Figure 5.
  • Figure 7 is a partial sectional view showing on an enlarged scale an embodiment of the positioning means of the removable enclosure on the fixed enclosure.
  • Figure 8 is a front elevational view of a door according to the invention.
  • Figure 9 is a view along IX-IX of Figure 8, showing on an enlarged scale, the door of Figure 8, when in phase of connection with that of a transportable enclosure.
  • Figures 10 and 11 are partial views, in cross section, showing on an enlarged scale, an embodiment of the sealing means according to the invention, defining the internal space between the two doors.

    • Dans la description qui suit, les éléments communs à l'invention et à l'état de la technique explicité précédemment, porteront les mêmes numéros de référence, les éléments nouveaux étant référencés entre 30 et 49 et à partir de 72.In the following description, the elements common to the invention and in the state of the art explained above, will bear the same numbers of reference, the new elements being referenced between 30 and 49 and from of 72.

    Comme montré aux figures 8 et 9, la porte 2 est traversée par un réseau de canaux, comprenant :

    • dans le bras 9, un canal longitudinal 30 communiquant avec un canal transversal borgne 34 débouchant de la face du bras disposée contre la porte 2;
    • et dans la porte 2, un canal 35 prolongeant le canal 34 précité.
    As shown in FIGS. 8 and 9, the gate 2 is traversed by a network of channels, comprising:
    • in the arm 9, a longitudinal channel 30 communicating with a blind transverse channel 34 opening from the face of the arm disposed against the door 2;
    • and in the door 2, a channel 35 extending said channel 34.

    Un joint torique 36 est disposé dans le plan de joint entre le bras 9 et la porte 2 pour éviter toute fuite. Le canal 35 débouche de la face extérieure 18 de la porte 2 dans la zone de cette dernière qui, lorsqu'elle est accolée à la porte 3, forme l'espace interne étanche C, dont il faut assurer l'isolement par rapport au milieu extérieur:An O-ring 36 is disposed in the joint plane between the arm 9 and the door 2 to prevent any leakage. Channel 35 opens out of the face 18 of the door 2 in the zone of the latter which, when it is contiguous to the door 3, forms the internal tight space C, which must be ensured isolation from the external environment:

    Le canal 30 communique avec un embout 37 pour le raccordement à une canalisation 38 allant à une source de vide 39, par exemple à une pompe à vide électrique disposée de préférence hors des deux enceintes. Le circuit d'alimentation électrique 40 de cette pompe comporte un organe de commande, tel qu'un contacteur ou interrupteur 42, à actionnement manuel ou automatique. Ce contacteur est disposé de préférence hors des deux enceintes "A" et "B", et, par exemple, sur la face extérieure de l'enceinte fixe "A", à proximité des moyens de commande de verrouillage des brides.The channel 30 communicates with a tip 37 for the connection to a pipe 38 going to a vacuum source 39, for example to a electric vacuum pump preferably disposed outside the two enclosures. The power supply circuit 40 of this pump comprises a control, such as a switch or switch 42, manually operated or automatic. This contactor is preferably disposed out of the two speakers "A" and "B", and, for example, on the outside of the fixed speaker "A", close to the flange locking control means.

    La canalisation 38 est également reliée, par une dérivation 43, à un capteur 44, de type vacuostat ou autre, mesurant la valeur de la dépression dans le circuit pneumatique, et réagissant, par des moyens pneumatiques ou électriques, sur une alarme 45. Le capteur 44 peut également être relié à un appareil 46 de mesure de la dépression, de type mécanique ou électrique.Line 38 is also connected by a bypass 43 to a sensor 44, of the vacuostat or other type, measuring the value of the depression in the pneumatic circuit, and reacting, by pneumatic means or on an alarm 45. The sensor 44 can also be connected to a apparatus 46 for measuring depression, of the mechanical or electrical type.

    Suivant une autre caractéristique de l'invention, montrée plus en détails aux figures 10 et 11, l'arête circulaire 16 de la porte 3, coopérant avec le joint 12 de la porte 2, et définissant la ligne critique interne C1 d'étanchéité de l'espace interne "C", est réalisée sur la périphérie de la face externe 17 de cette porte 3, et est juxtaposée à une portée circulaire d'appui 48, dont l'utilité sera précisée plus loin.According to another characteristic of the invention, shown in details in FIGS. 10 and 11, the circular edge 16 of the door 3 cooperating with the seal 12 of the door 2, and defining the internal critical line C1 sealing of the internal space "C" is made on the periphery of the outer face 17 of this door 3, and is juxtaposed with a circular bearing surface 48, whose utility will be specified later.

    Le dispositif de liaison n'intervient dans la manoeuvre d'accouplement verrouillé des deux portes 2 et 3, qu'après que les brides 4 et 5 aient été verrouillées l'une à l'autre, en assurant, par compression du joint 14, l'étanchéité de la jonction vers le milieu extérieur, comme décrit dans le préambule de la présente description. A ce stade, et comme montré à la figure 10, la zone circulaire 16 de la porte 3 vient déjà en contact avec le joint 12 de la porte 2, alors que, la portée circulaire 48 adjacente n'est pas en parfait contact avec la portée en vis-à-vis 49 de la porte 2.The connecting device does not intervene in the maneuver locked coupling of the two doors 2 and 3, that after the flanges 4 and 5 have been locked to one another, ensuring, by compression of the seal 14, sealing the junction to the outside environment, as described in the preamble of the present description. At this stage, and as shown in 10, the circular zone 16 of the door 3 already comes into contact with the seal 12 of the door 2, while the adjacent circular reach 48 is not in perfect contact with the door 49 facing the door 2.

    Dès que le contacteur 42 est actionné pour mettre en fonctionnement la pompe à vide 39, la canalisation 38 et le réseau de canaux 30, 34 et 35, font parvenir la dépression dans l'intervalle "C" entre les deux portes 2 et 3, ce qui a pour effet de provoquer le déplacement axial de la porte 3 sur une très faible course (fortement exagérée sur la figure 11), jusqu'au contact de sa portée 48 contre la portée 49 en vis-à-vis de la porte 2. Dans cette position, et comme montré à la figure 11, la zone circulaire 16, définissant la ligne critique interne C1, propre à l'espace interne "C", comprime la partie du joint 12 de la porte 2 en vis-à-vis, et garantit l'obtention de cette ligne critique d'étanchéité. Simultanément, la dépression créée dans l'espace "C" assure la liaison des deux portes 2 et 3. L'actionnement du contacteur 42 peut être manuel ou automatique, par exemple, s'il est disposé. dans la trajectoire de pivotement de l'un des leviers 52.As soon as the switch 42 is actuated to put in operation of the vacuum pump 39, the line 38 and the channels 30, 34 and 35, deliver the depression in the "C" gap between two doors 2 and 3, which has the effect of causing the axial displacement of the door 3 on a very short stroke (strongly exaggerated in FIG. 11), until contact of its bearing 48 against the bearing 49 vis-à-vis the door 2. In this position, and as shown in FIG. 11, the circular zone 16, defining the internal critical line C1, specific to the internal space "C", compresses the portion of the seal 12 of the door 2 vis-à-vis, and guarantees the obtaining of this critical line of sealing. Simultaneously, the depression created in the space "C" ensures the connection of the two doors 2 and 3. The actuation of the contactor 42 may be manual or automatic, for example, if it is arranged. in the pivoting path of one of the levers 52.

    La dépression, dans le circuit pneumatique allant de la pompe 39 à l'espace C, est mesurée par le capteur 44. Si cette valeur n'atteint pas une valeur de référence correspondant à l'étanchéité désirée de la portée 16 sur le joint 12, ce qui résulte soit d'un mauvais positionnement, soit d'une fuite en raison de l'usure, soit d'une présence indésirable, le capteur 44 réagit sur l'alarme 45 pour informer l'opérateur qu'il ne faut pas poursuivre la manoeuvre de mise en communication entre les deux enceintes "A" et "B".The depression, in the pneumatic circuit going from the pump 39 to the space C, is measured by the sensor 44. If this value does not reach a reference value corresponding to the desired sealing of the span 16 on the seal 12, which results either from a bad positioning or a leak in because of the wear or an undesirable presence, the sensor 44 reacts on alarm 45 to inform the operator that the maneuver should not be continued placing in communication between the two speakers "A" and "B".

    Le capteur 44 peut aussi réagir sur des moyens électriques, électroniques ou électromécaniques interdisant cette mise en communication, par exemple en verrouillant la porte 2 de l'enceinte fixe A.The sensor 44 can also react on electrical means, electronic or electromechanical prohibiting this setting in communication, for example by locking the door 2 of the fixed enclosure A.

    Ce capteur garantit donc la préservation de l'état initial de ces enceintes ou du milieu extérieur, si ce sont ces enceintes qui sont contaminantes. Ce contrôle de l'intégrité de la ligne critique mobile est particulièrement intéressant, puisqu'il améliore considérablement la sécurité de la manoeuvre de jonction étanche entre les enceintes "A" et "B".This sensor thus guarantees the preservation of the initial state of these speakers or the outside environment, if it is these speakers that are contaminating. This control of the integrity of the mobile critical line is particularly interesting, since it considerably improves the safety the sealing junction between the "A" and "B" loudspeakers.

    Le capteur 44 peut aussi être utilisé lors de la jonction de deux enceintes A et B, en particulier dans le cadre d'une procédure d'autotest du circuit pneumatique consistant à mettre le circuit en dépression pour vérifier soit qu'il n'est pas bouché, soit que ledit capteur fonctionne correctement.The sensor 44 can also be used when joining two pregnant A and B, in particular in the context of a self-test procedure pneumatic circuit consisting of putting the circuit in depression to check either it is not clogged, or that said sensor is working properly.

    Bien que le dispositif de liaison par dépression selon l'invention puisse être utilisé seul, il peut être avantageux de le combiner avec un dispositif de liaison magnétique, ne serait-ce que pour solidariser temporairement les portes 2 et 3, après positionnement angulaire relatif de ces dernières, mais avant les manoeuvres de verrouillage des brides 4 et 5, et donc de déverrouillage des portes 2 et 3 indiquées précédemment.Although the vacuum connection device according to the invention can be used alone, it may be advantageous to combine it with a magnetic binding device, if only to secure temporarily doors 2 and 3, after relative angular positioning of these last, but before the locking operations of flanges 4 and 5, and thus unlocking the doors 2 and 3 indicated above.

    Un dispositif de liaison magnétique comprend, comme montré figure 9, un aimant 72, disposé à l'intérieur du bossage central de la porte 2 de l'enceinte fixe "A". Cet aimant est destiné à coopérer avec une plaquette métallique en matériau ferreux 73, maintenue dans une gorge 74 d'un embrèvement 75 ménagé dans la porte 3, en vis-à-vis du bossage central précité.A magnetic link device includes, as shown 9, a magnet 72 disposed inside the central boss of the door 2 of FIG. the fixed speaker "A". This magnet is intended to cooperate with a wafer ferrous material 73, held in a groove 74 of a recess 75 formed in the door 3, vis-à-vis the central boss supra.

    Dans une forme d'exécution montrée à la figure 8, la canalisation 38 est également reliée, avec interposition d'une électrovanne multivoies 80, à une branche 76 raccordée soit à une source d'air comprimé 81 soit à une pompe à air électrique 77. Le circuit électrique d'alimentation 78 de l'électrovanne comporte un contacteur 79. In one embodiment shown in FIG. duct 38 is also connected, with the interposition of a solenoid valve multipath 80, with a branch 76 connected to either a source of compressed air 81 to an electric air pump 77. The electrical supply circuit 78 the solenoid valve comprises a contactor 79.

    Si dans la manoeuvre de fermeture des portes, l'opérateur verrouille mal la porte 3 sur son cadre dormant 5 et que, après fermeture et verrouillage de la porte 2 sur son cadre 4 et extraction de l'enceinte B, la porte 3 reste collée sur la porte 2, pour la libérer il suffit d'actionner le contacteur 79. Cette opération peut être réalisée par une intervention humaine spécifique ou par une action automatique, par exemple liée à l'actionnement des leviers de déverrouillage. L'électrovanne 80 isole alors la canalisation 38 de la source de vide 39 et de la branche 45 équipée du vacuostat 44 et met en communication cette canalisation 38 avec la source d'air comprimé. De l'air sous pression vient ainsi dans l'espace C et exerce sur la porte 3 un effort favorisant son décollage de la porte 2.If in closing the doors, the operator incorrectly locks the door 3 on its dormant frame 5 and that, after closing and locking the door 2 on its frame 4 and extracting the enclosure B, the door 3 remains stuck on the door 2, to release it just to activate the contactor 79. This operation can be performed by human intervention specific or by an automatic action, for example related to the actuation unlocking levers. The solenoid valve 80 then isolates the pipe 38 of the vacuum source 39 and the branch 45 equipped with the vacuum switch 44 and sets communication this line 38 with the source of compressed air. Air under pressure thus comes into the space C and exerts on the door 3 an effort facilitating its take off from the door 2.

    Cet aménagement n'intervient pas dans la manoeuvre de jonction, mais, en facilitant la séparation des portes et en éliminant tous recours à des outils pour procéder à cette séparation, il contribue à préserver l'intégrité des joints et en conséquence l'intégrité de la ligne critique d'étanchéité.This arrangement does not intervene in the junction maneuver, but, by facilitating the separation of doors and eliminating all recourse to tools to achieve this separation, it helps to preserve the integrity of joints and consequently the integrity of the critical line of sealing.

    Claims (3)

    1. Device for connecting doors, in a device for the sealed connection of two chambers which are isolated from the external medium, in which device, firstly, each chamber, respectively "A" which is stationary or "displaceable" and "B" which is movable or transportable, has at least one access opening equipped with a door (2, 3) cooperating, with the interposition of sealing means (12, 14), with a flange (4, 5) forming a stationary frame, one (2) of the two doors being articulated to its flange (4), secondly, the two doors (2, 3) have means of locking to their respective flanges (4, 5) and complementary connecting means which, before the contents of one chamber have been transferred into the other chamber, and while the flanges (4, 5) are locked together in a sealed manner, allow the two doors (2, 3) to be connected thereby forming, through contact of sealing means (12, 16 and 13, 14), an internal space "C" isolating their faces (17, 18) now in contact from the external medium, thirdly, external means of controlling the locking-together of the flanges (4, 5) and external means of controlling the unlocking of the doors (2, 3) from their flange are provided, and fourthly, the means of connection between the two doors (2, 3) are made up of ducts (30, 34, 35) formed in at least one of the doors, opening into the internal space "C" and connected to a source (39) of vacuum, characterized in that it comprises, on ducting (38) connecting the source (39) of vacuum to the network of ducts (30, 34, 35), a sensor (44) that measures the strength of the partial vacuum in this ducting and reacts on an alarm (45) when this partial vacuum does not reach a displayed or stored value.
    2. Device according to Claim 1, characterized in that one (3) of the doors is equipped with a circular zone (16) cooperating with a seal (12) of the other door (2) and forming an internal critical line of sealing with respect to the space "C" formed between the two doors (2, 3), and the said door has, close to this circular zone (16), an internal and recessed circular bearing surface (48) limiting the relative displacement of the door (3) with respect to the other door (2) and therefore the compression of the corresponding seal (12) under the action of the partial vacuum.
    3. Device according to Claim 1, characterized in that the ducting (38) conveying the vacuum to the network of ducts (30, 34, 35) formed in one of the doors (2 or 3) is also connected to a source of compressed air (81 or 77) with the interposition of a multi-way electrically-operated valve (80) capable, simultaneously, of isolating the ducting (38) from the source of vacuum and from the branch (45) with the said sensor (44) and of placing this ducting (38) in communication with the source of compressed air so as to send into the space "C" between the two doors (2, 3) a flow of pressurized air to encourage these doors to part.
    EP99959468A 1998-12-11 1999-12-09 Device for linking doors between two chambers insulated from the outside environment Expired - Lifetime EP1141974B1 (en)

    Applications Claiming Priority (3)

    Application Number Priority Date Filing Date Title
    FR9815851 1998-12-11
    FR9815851A FR2787235B1 (en) 1998-12-11 1998-12-11 DEVICE FOR CONNECTING DOORS BETWEEN TWO ENCLOSURES ISOLATED FROM THE EXTERNAL ENVIRONMENT
    PCT/FR1999/003078 WO2000036610A1 (en) 1998-12-11 1999-12-09 Device for linking doors between two chambers insulated from the outside environment

    Publications (2)

    Publication Number Publication Date
    EP1141974A1 EP1141974A1 (en) 2001-10-10
    EP1141974B1 true EP1141974B1 (en) 2004-05-06

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    US (2) US6553722B1 (en)
    EP (1) EP1141974B1 (en)
    JP (1) JP4834221B2 (en)
    AT (1) ATE266174T1 (en)
    AU (1) AU1663200A (en)
    DE (1) DE69917068T2 (en)
    ES (1) ES2221467T3 (en)
    FR (1) FR2787235B1 (en)
    WO (1) WO2000036610A1 (en)

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    Also Published As

    Publication number Publication date
    ATE266174T1 (en) 2004-05-15
    ES2221467T3 (en) 2004-12-16
    EP1141974A1 (en) 2001-10-10
    JP2002532670A (en) 2002-10-02
    DE69917068T2 (en) 2005-04-21
    DE69917068D1 (en) 2004-06-09
    FR2787235A1 (en) 2000-06-16
    WO2000036610A1 (en) 2000-06-22
    US20030126799A1 (en) 2003-07-10
    US6553722B1 (en) 2003-04-29
    FR2787235B1 (en) 2001-01-19
    AU1663200A (en) 2000-07-03
    JP4834221B2 (en) 2011-12-14
    US6817143B2 (en) 2004-11-16

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