EP0828910B1 - Deployable and collapsible inflatable dome - Google Patents

Deployable and collapsible inflatable dome Download PDF

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Publication number
EP0828910B1
EP0828910B1 EP96917530A EP96917530A EP0828910B1 EP 0828910 B1 EP0828910 B1 EP 0828910B1 EP 96917530 A EP96917530 A EP 96917530A EP 96917530 A EP96917530 A EP 96917530A EP 0828910 B1 EP0828910 B1 EP 0828910B1
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EP
European Patent Office
Prior art keywords
inflatable
beams
conduit
arch according
inflatable arch
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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.)
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EP96917530A
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German (de)
French (fr)
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EP0828910A1 (en
Inventor
Guy Delamare
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Sa Spironef Technologies
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Civile D'exploitation Des Brevets Et Procedes Spironef Ste
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H15/00Tents or canopies, in general
    • E04H15/20Tents or canopies, in general inflatable, e.g. shaped, strengthened or supported by fluid pressure
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H15/00Tents or canopies, in general
    • E04H15/20Tents or canopies, in general inflatable, e.g. shaped, strengthened or supported by fluid pressure
    • E04H2015/202Tents or canopies, in general inflatable, e.g. shaped, strengthened or supported by fluid pressure with inflatable panels, without inflatable tubular framework
    • E04H2015/204Tents or canopies, in general inflatable, e.g. shaped, strengthened or supported by fluid pressure with inflatable panels, without inflatable tubular framework made from contiguous inflatable tubes

Definitions

  • the subject of the present invention is a vault inflatable, deployable and retractable by inflation and deflation respectively.
  • these inflatable arches include a plurality of longitudinal beams arranged side by side, sliding means of at least minus one end of the beams along at least one deployment or folding path and means supplying said beams with pressurized fluid.
  • This type of vaults is designed, among other things, to allow its deployment by simple inflation, as well that its retraction by deflation, which allows desire to cover a space in order to protect it weather and discover it in good weather.
  • each beam has two opposite panels forming a sole and each constituting one of the lobes of the inner wall and exterior of the vault and two side panels forming the core of the beam.
  • the means of feeding the beam with inflation fluid are formed by at least one conduit crossing said beams and being extensible in its length, its stretching and its retraction being controlled by deploying and retracting the vault respectively.
  • the supply duct is common to all beams and communicates with each of said beams by a closable orifice controlled by shutter means and the conduit feed through an opening arranged in each of the side panels.
  • the deployment path is located outside beams, which causes constraints distributed over a reduced area of the wall.
  • an inflatable arch comprising a plurality of beams longitudinal arranged side by side, means of sliding of at least one end of the beams along at least one deployment or folding path and means for supplying the beams with inflation fluid.
  • This path of deployment or folding extends longitudinally inside a duct pressurized fluid supply and the means of sliding are located between said path and the wall of said conduit.
  • the object of the invention is to propose a vault inflatable, deployable and retractable which avoids the previously mentioned drawbacks.
  • FIG. 1 there is shown schematically an inflatable arch 1 made up of a plurality of inflatable beams, longitudinal A, B, C ... M, N waterproof and which are arranged side by side to form the vault 1.
  • said beams are slidably mounted along a path 2 and 2a for deployment or folding which crosses the flexible walls of the beams as will be described later.
  • Each path 2 and 2a of deployment or folding is formed by a rigid beam.
  • One of the rigid beams is formed by a pipe 3 of transport of a pressurized fluid for inflation or deflation of beams A, B, C ....
  • each rigid beam can be formed by a fluid transport pipe under pressure.
  • the pipe 3 for transporting the fluid under pressure for inflation or deflation of beams A, B, C ... communicates, on the one hand, to at least one of its ends with means 4 for supplying fluid under pressure (Fig. 1) and, on the other hand, with the interior at least one inflatable beam A, B, C ... by at least an orifice 5, 5a, 5b, 5c ... formed in the wall of the line 3 and each provided with sealing means.
  • Line 3 is formed for example by a straight or curved tube of circular section (Fig. 4) or by a bent tube of rectangular section (Fig. 5).
  • This tube can be made of wood, composite material or metal.
  • line 3 is composed, on the one hand, two side walls 10a and 10b whose two selvedges 11 and 12 are straight or curved and which are made by stacking wooden slats 13a, 13b, 13c ... 13n and, on the other hand, at least two wooden planks 14, 15, 16 and 17 straight or curved and glued to the edges of edges 11 and 12 of said side walls 10a and 10b.
  • the means 4 for supplying fluid under pressure of inflatable beams A, B, C ... are formed by at least one pressurized fluid generator.
  • the pressurized fluid generator is a centrifugal fan 4 comprising a suction port 21 and a discharge orifice 22.
  • connection between the suction opening 21 and the discharge orifice 22 with the pipe 3 is made by means of two flexible sheaths respectively 23 and 24.
  • the first flexible sheath 23 has its two ends connected to fixed flanges 25 and 26, one of which 25 is fixed to the suction port 21 and of which the other 26 is carried by a plate 27 mounted on the discharge orifice 22 by means of a flange 28.
  • the second flexible sheath 24 has one of its ends connected to a fixed flange 29 secured to the line 3 and the other of its ends connected to a movable flange 30 associated with maneuvering means 31 allowing the tight connection of the second sheath flexible 24, either with the flange 28 of the delivery orifice 22 to inflate the beams A, B, C ... and the deployment of the vault 1, either with the flange 26 of the free end of the first flexible sheath 23 for deflate the beams A, B, C ... and folding the roof 1.
  • the sealing means are formed by watertight doors 40 associated with control means 41 when they open or close.
  • Each watertight door 40 includes at least one leaf 42 pivoting in line 3 around a articulation point 43 between a closed position (Fig. 6) ensuring the continuity of the external wall of said pipe 3 and an inclined opening position (Fig. 7) ensuring, through orifice 5 corresponding, the orientation of the fluid under pressure of this pipe 3 to the corresponding inflatable beam A, B, C ... or said inflatable beam corresponding A, B, C ... to the said pipe 3.
  • the pipe 3 comprises two orifices opposite 5 provided with leaves 42 opening towards one another and comprising a clamping mechanism in the position of closing of these leaves 42.
  • This tightening mechanism of the leaves 42 in closed position consists of two rods 44 and 45 articulated between them at one of their ends at a common point of articulation 46 and articulated each at their other end on each of the leaves 42 at a point of articulation 47.
  • the means 41 for controlling the opening or for closing the leaves 42 are formed for example by a cylinder whose free end of the cylinder rod 41a is connected to the rods 44 and 45 at their common point hinge 46.
  • Each leaf 42 is formed of two elements 50 and 51 removable from each other and, joined together, using a plurality of screws 52 accessible from outside the pipeline 3.
  • the first element 50 is openwork in its part central and carries, on the one hand, the joints 43 and 47 and, on the other hand, a seal 53 with the inner wall of line 3 around the periphery of the orifice 5 of said pipe 3.
  • the separation of the second element 51 by compared to the first element 50 provides access to the interior of line 3 for the maintenance of the means 41 for controlling the opening or closing of leaves 42.
  • the second element 51 closes the part center of the first element 50 and ensures continuity of the external wall of the pipe 3 in the position of leaf 42 closed, as shown in FIG. 6.
  • the adjoining walls 60 and 61 of the inflatable beams adjacent for example A and B are interconnected tightly around the corresponding pipe 3 using a plate 62 carrying the means of sliding constituted for example by a roller 63 or by a skate.
  • Each roller 63 is intended to roll on the external wall of line 3 during deployment or folding the vault 1.
  • Each plate 62 saves a free space 64 with the corresponding pipe 3 allowing intercommunication between the pressure vessels adjacent inflatable beams for example A and B.
  • the free space 64 is either completely free, either permanently closed or temporarily closed for example after deployment of the arch.
  • free space 64 is permanently sealed with a seal 65 fixed on plate 62 and rubbing against the external wall Line 3 during deployment or the retraction of the vault 1 so as to isolate the speakers pressurized adjacent inflatable beams by example A and B.
  • free space 64 can be closed temporarily with a seal 66 inflatable and foldable.
  • This seal 66 is fixed on the plate 62 inside which it is folded in the absence of pressurization and it deploys under the effect of its internal pressurization to apply from tightly on the external wall of the pipe 3.
  • stowage watertight on each wall of adjacent inflatable beams for example A and B with the plates 62 is produced at using a clamp 67a and 67b held captive in an annular hem 68a and 68b formed by turning over the corresponding wall 60 and 61.
  • the flanges 67a and 67b are fixed on the plate 62 by means of a plurality of bolts 69.
  • the adjacent plates 62 are, when the beams are deflated and retracted, kept apart by spacers 70 at a distance such that the length of the corresponding pipe 3 between these adjacent decks 62 has at least a portion of the surface of at least one closable orifice 5d, 5c ....
  • the spacer 70 can wear a guide roller, not shown, on the corresponding line 3.
  • the spacer 70 can be fixed at the same time on the adjacent plates 62 of the first beam A, the length of this spacer corresponding to the spacing of these plates 62 when the first beam A is inflated.
  • the walls contiguous 60 and 61 of the inflatable beams adjacent by example A and B are linked together along the space which extends between the plates 62 and along the space between a plate 62 and the end (s) of the inflatable beams, by at least one hook-and-loop strap 71.
  • This self-gripping strip 71 is composed of two parts 72 and 73 which can hang on one to the other or to drop from each other.
  • Each of these parts 72 and 73 is fixed by example by welding at least along its edges longitudinal on each of the walls 60 and 61 of the adjacent beams for example A and B.
  • the adjoining walls 60 and 61 of the adjacent inflatable beams for example A and B are linked together by a continuous plate, not shown, extending between the deployment paths 2 and 2a.
  • each plate has at each of its ends an orifice crossing the corresponding deployment path.
  • the openings 5, 5a, 5c and 5d are closed by the corresponding leaves 42 and the orifice 5b is open.
  • Fan 3 operates during inflation and the beam A which is opposite the open orifice 5b is inflated, then beam B is inflated because it is initially in communication with beam A and secondly, after a start of inflation in face of open port 5b.
  • the opening 5b is closed and the opening 5c is open so as to inflate the beams C and D and and so on.
  • the 5d port is first opened for deflate the N beam, then the M beam which communicates with beam N.
  • Port 5d is closed and Port 5c is open to deflate beam D, then beam C.
  • the opening 5c is closed and the opening 5b is open to deflate the beams A and B in order to fold the entire arch.
  • the sealing means are, in this case, formed by non-return valves 74 actuated by the difference of the prevailing fluid pressures, on the one hand, in line 3 and, on the other hand, in said at minus an inflatable beam A, B, C ... M, N.
  • Each check valve 74 has two associated membranes 75 and 76 of flexible material.
  • the first membrane 75 closes the orifice 5 between the inside of line 3 and the beam inflatable for example A and the second membrane 76 surrounds said orifice 5.
  • portions 77a and 77b are interconnected in portions 77a and 77b and they are not connected between them in portion 78.
  • these two membranes 75 and 76 are arranged in a cavity 80 formed in the wall of line 3 and protected by doors of visit 81 provided with orifices 82a and 82b which bring into communication this cavity 80 with the interior of the corresponding inflatable beam for example A.
  • Fig. 12 is shown on the same line 3, two valves 74, one of which is in a shutter position F and the other of which is in a open position G.
  • membranes 75 and 76 move away from each other in the open position G by clearing the orifice 5 and by revealing one or more opening 79 in the portion (s) of the periphery of the membranes 75 and 76 where they are not interconnected.
  • This pressurized fluid flow then passes from line 3 through port 5, then between membranes 75 and 76 through opening 79 and through orifices 82a and 82b to the inflatable beam A.
  • the two membranes 75 and 76 are applied tightly against each other in the closing position F by flattening the opening (s) 79 and closing the orifice 5.
  • the free space 64 is temporarily closable by a gasket 90 formed of three parts concentric.
  • These three concentric parts are made up by a double annular membrane 91, a lip elastic 92 formed on one of the edges of the double membrane 91 and by at least one heel 93 for attachment to plate 62 and formed on the other edge of said double membrane 91.
  • This double annular membrane 91 household internally a space 94 connected to inflation means, not shown.
  • the elastic lip 92 is formed by a O-ring.
  • the seal 90 is made of elastic rubber of elastomer or plastomer reinforced by a layer of cables 95 arranged radially and extending continuously in said heel 93 and the double annular membrane 91.
  • Cables 95 are made of metal, textile or glass fibers.
  • the double annular membrane 91 of the seal seal 90 is deformable between a first non- inflated (Fig. 13) sealing between two beams A, B, C ... M, N adjacent by elastic tightening of the lip 92 on line 3 and a second inflated state (Fig. 14) providing a passage between the two beams A, B, C ... M, N adjacent.
  • the internal space 94 of the double membrane 91 is connected to the inflation means by a hose 96 and the pressure exerted by the elastic lip 92 on line 3, when the gasket 90 is in inflated position, is adjusted by a ring 97 secured of plate 62 and on which said seal is supported in deflated position.
  • the position of the ring 97 by compared to plate 62 is adjustable. This setting can possibly obtained by shims of thickness 98.
  • one of the membranes of the double membrane 91 is arranged between two stiffening flanges, 99a and 99b respectively, and the seal 90 is fixed on the plate 62, at the level of the heels 93, by a fastening member 100.
  • the flange 99a disposed between the two membranes of the double membrane 91 has a conduit 101 opening into internal space 94 and connected to the means inflation, not shown.
  • the configuration of the gasket 90, inflated and retracted or deflated and applied against the pipeline 3 between each beam A, B, C ... M, N adjusts the inflation or successive deflation of these beams by closing or opening the intercom passage 64.
  • For the successive inflation of said beams A, B, C ... M, N on successively retract the corresponding gasket 90 by inflation, then deflate it when the corresponding beam has been inflated to the desired pressure.
  • seals 90 which, in good condition deflated, apply, thanks to their shape and structure, on line 3.
  • the line 3 of transport of pressurized fluid is arranged in the middle said beams A, B, C ... M, N.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Tents Or Canopies (AREA)
  • Toys (AREA)
  • Pipe Accessories (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Prostheses (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)

Abstract

PCT No. PCT/FR96/00765 Sec. 371 Date Mar. 4, 1998 Sec. 102(e) Date Mar. 4, 1998 PCT Filed May 22, 1996 PCT Pub. No. WO96/38642 PCT Pub. Date Dec. 5, 1996An inflatable roof (1), which can be unfolded and folded away by respectively inflating and deflating it, includes a plurality of longitudinal inflatable beams A, B, C . . . arranged side by side, a mechanism (4) for supplying the inflatable beams with pressurized fluid, and a mechanism for sliding the beams along at least one unfolding or folding-up track (2, 2a) formed by a rigid beam sealingly passing through the inflatable beams. The rigid beam is formed by a pipe (3) for conveying pressurized fluid for inflating or deflating the beams. The pipe communicates at least at one of its ends, with the pressurized-fluid supply mechanism (4), and with the interior of at least one inflatable beam via at least one orifice (5, 5a, 5b . . . ) formed in the wall of the pipe (3). The pipe is equipped with a device or devices for blocking off the at least one orifice.

Description

La présente inventiona pour objet une voûte gonflable, déployable et escamotable par gonflage et dégonflage respectivement.The subject of the present invention is a vault inflatable, deployable and retractable by inflation and deflation respectively.

D'une manière générale, ces voûtes gonflables comprennent une pluralité de poutres longitudinales disposées côte à côte, des moyens de coulissement d'au moins une extrémité des poutres le long d'au moins un chemin de déploiement ou de repliage et des moyens d'alimentation desdites poutres en fluide sous pression.Generally speaking, these inflatable arches include a plurality of longitudinal beams arranged side by side, sliding means of at least minus one end of the beams along at least one deployment or folding path and means supplying said beams with pressurized fluid.

Ce type de voûtes est conçu, entre autres, pour permettre son déploiement par simple gonflage, ainsi que son escamotage par dégonflage, ce qui permet à volonté de recouvrir un espace dans le but de le protéger des intempéries et de le découvrir par beau temps.This type of vaults is designed, among other things, to allow its deployment by simple inflation, as well that its retraction by deflation, which allows desire to cover a space in order to protect it weather and discover it in good weather.

On connaít plus particulièrement dans le FR-A-2 621 944 une voûte gonflable dans laquelle chaque poutre comporte deux panneaux opposés formant semelle et constituant chacun un des lobes de la paroi intérieure et extérieure de la voûte et deux panneaux latéraux formant âme de la poutre.We know more particularly in FR-A-2 621 944 an inflatable vault in which each beam has two opposite panels forming a sole and each constituting one of the lobes of the inner wall and exterior of the vault and two side panels forming the core of the beam.

Les moyens d'alimentation de la poutre en fluide de gonflage sont formés par au moins un conduit traversant lesdites poutres et étant extensible dans sa longueur, son étirement et sa rétraction étant commandés par le déploiement et l'escamotage de la voûte respectivement.The means of feeding the beam with inflation fluid are formed by at least one conduit crossing said beams and being extensible in its length, its stretching and its retraction being controlled by deploying and retracting the vault respectively.

Dans cette voûte, le conduit d'alimentation est commun à toutes les poutres et communique avec chacune desdites poutres par un orifice obturable commandé par des moyens d'obturation et le conduit d'alimentation traverse de manière étanche une ouverture agencée dans chacun des panneaux latéraux.In this vault, the supply duct is common to all beams and communicates with each of said beams by a closable orifice controlled by shutter means and the conduit feed through an opening arranged in each of the side panels.

Le chemin de déploiement est situé à l'extérieur des poutres, ce qui entraíne des contraintes réparties sur une zone réduite de la paroi.The deployment path is located outside beams, which causes constraints distributed over a reduced area of the wall.

On connaít également dans le FR-A-2 677 394 une voûte gonflable comportant une pluralité de poutres longitudinales disposées côte à côte, des moyens de coulissement d'au moins une extrémité des poutres le long d'au moins un chemin de déploiement ou de repliage et des moyens d'alimentation des poutres en fluide de gonflage.We also know in FR-A-2 677 394 an inflatable arch comprising a plurality of beams longitudinal arranged side by side, means of sliding of at least one end of the beams along at least one deployment or folding path and means for supplying the beams with inflation fluid.

Dans ce cas, le chemin de déploiement ou de repliage traverse de manière étanche lesdites poutres.In this case, the deployment path or folding folds tightly across said beams.

Ce chemin de déploiement ou de repliage s'étend longitudinalement à l'intérieur d'un conduit d'alimentation en fluide sous pression et les moyens de coulissement sont situés entre ledit chemin et la paroi dudit conduit.This path of deployment or folding extends longitudinally inside a duct pressurized fluid supply and the means of sliding are located between said path and the wall of said conduit.

Mais, une telle structure pose des problèmes d'étanchéité et est complexe du fait de la disposition du chemin de déploiement ou de repliage à l'intérieur du conduit d'alimentation en fluide sous pression.But such a structure poses problems sealing and is complex due to the arrangement deployment or folding path inside the pressurized fluid supply duct.

L'invention a pour but de proposer une voûte gonflable, déployable et escamotable qui permet d'éviter les inconvénients précédemment mentionnés.The object of the invention is to propose a vault inflatable, deployable and retractable which avoids the previously mentioned drawbacks.

L'invention a donc pour objet une voûte gonflable, déployable et escamotable par gonflage et dégonflage respectivement, comportant :

  • une pluralité de poutres gonflables, longitudinales et disposées côte à côte,
  • des moyens d'alimentation des poutres gonflables en fluide sous pression,
  • des moyens de coulissement des poutres le long d'au moins un chemin de déploiement ou de repliage formé par une poutre rigide traversant de manière étanche ces poutres,
caractérisée en ce que la poutre rigide est formée par une canalisation de transport du fluide sous pression pour le gonflage ou le dégonflage des poutres communiquant, d'une part, à au moins une de ses extrémités avec les moyens d'alimentation en fluide sous pression et, d'autre part, avec l'intérieur d'au moins une poutre gonflable par au moins un orifice ménagé dans la paroi de la canalisation et muni de moyens d'obturation.The subject of the invention is therefore an inflatable arch, deployable and retractable by inflation and deflation respectively, comprising:
  • a plurality of inflatable beams, longitudinal and arranged side by side,
  • means for supplying the inflatable beams with pressurized fluid,
  • means for sliding the beams along at least one deployment or folding path formed by a rigid beam sealingly passing through these beams,
characterized in that the rigid beam is formed by a pipeline for transporting the pressurized fluid for inflating or deflating the beams communicating, on the one hand, at at least one of its ends with the means for supplying pressurized fluid and, on the other hand, with the interior of at least one beam inflatable by at least one orifice formed in the wall of the pipe and provided with sealing means.

Selon d'autres caractéristiques de l'invention :

  • la canalisation est formée par un tube de section circulaire ou de section rectangulaire,
  • les moyens d'alimentation des poutres gonflables sont formés par au moins un générateur de fluide sous pression,
  • le générateur de fluide sous pression est un ventilateur centrifuge comportant, d'une part, un orifice d'aspiration muni d'une première gaine souple dont l'extrémité libre comporte des moyens de connexion avec une seconde gaine souple reliée à la canalisation, et d'autre part, un orifice de refoulement comportant des moyens de connexion avec la seconde gaine souple destinée à être reliée alternativement par lesdits moyens de connexion avec l'orifice de refoulement pour gonfler les poutres ou avec l'extrémité libre de la première gaine souple pour dégonfler lesdites poutres,
  • les moyens d'obturation sont formés par des portes étanches associées à des moyens de commande de leur ouverture ou de leur fermeture,
  • chaque porte comporte au moins un vantail pivotant dans la canalisation entre une position de fermeture assurant la continuité de la paroi externe de ladite canalisation et une position inclinée d'ouverture assurant, au travers des orifices, l'orientation du fluide sous pression de cette canalisation vers ladite au moins une poutre gonflable ou de ladite au moins une poutre gonflable vers ladite canalisation,
  • les parois contiguës des poutres gonflables adjacentes sont reliées entres elles autour de la canalisation correspondante par une platine portant les moyens de coulissement et ménageant avec ladite canalisation un espace libre obturable momentanément par un joint d'étanchéité,
  • les platines adjacentes sont maintenues écartées l'une de l'autre par au moins une entretoise, d'une distance telle que la longueur de la canalisation entre lesdites platines adjacentes comporte au moins une partie de la surface d'au moins un desdits orifices obturables.
According to other characteristics of the invention:
  • the pipeline is formed by a tube of circular section or rectangular section,
  • the means for supplying the inflatable beams are formed by at least one pressurized fluid generator,
  • the pressurized fluid generator is a centrifugal fan comprising, on the one hand, a suction orifice provided with a first flexible sheath, the free end of which comprises means of connection with a second flexible sheath connected to the pipe, and on the other hand, a discharge orifice comprising means for connection with the second flexible sheath intended to be connected alternately by said connection means with the discharge orifice for inflating the beams or with the free end of the first flexible sheath to deflate said beams,
  • the closing means are formed by watertight doors associated with means for controlling their opening or closing,
  • each door comprises at least one leaf pivoting in the pipe between a closed position ensuring the continuity of the external wall of said pipe and an inclined opening position ensuring, through the orifices, the orientation of the fluid under pressure from this pipe towards said at least one inflatable beam or from said at least one inflatable beam towards said pipe,
  • the adjoining walls of the adjacent inflatable beams are connected together around the corresponding pipe by a plate carrying the sliding means and providing with said pipe a free space which can be temporarily closed off by a seal,
  • the adjacent plates are kept spaced from each other by at least one spacer, by a distance such that the length of the pipe between said adjacent plates comprises at least part of the surface of at least one of said closable orifices .

L'invention sera mieux comprise à la lecture de la description qui va suivre, donnée uniquement à titre d'exemple et faite en se référant aux dessins annexés sur lesquels :

  • la Fig. 1 est une vue schématique en perspective d'une voûte gonflable selon l'invention,
  • la Fig. 2 est une vue schématique partielle en coupe d'une des extrémités des poutres gonflables en position escamotée,
  • la Fig. 3 est une vue schématique des moyens d'alimentation des poutres gonflables en fluide sous pression,
  • la Fig. 4 est une vue en coupe transversale d'un premier mode de réalisation des moyens de coulissement des poutres gonflables,
  • la Fig. 5 est une vue en coupe transversale d'un second mode de réalisation des moyens de coulissement des poutres gonflables,
  • la Fig. 6 est une vue schématique en coupe transversale et en position de fermeture d'un premier mode de réalisation des moyens d'obturation des orifices de la canalisation,
  • la Fig. 7 est une vue schématique en coupe transversale et en position d'ouverture du premier mode de réalisation des moyens d'obturation des orifices de la canalisation,
  • la Fig. 8 est une vue schématique en coupe transversale d'un premier mode de réalisation des moyens de coulissement des poutres gonflables le long du chemin de déploiement ou de repliage,
  • la Fig. 9 est une vue schématique en coupe transversale d'un second mode de réalisation des moyens de coulissement des poutres gonflables le long du chemin de déploiement ou de repliage,
  • la Fig. 10 est une vue schématique en coupe transversale de deux poutres gonflables contiguës, - la Fig. 11 est une vue schématique partielle en coupe d'une extrémité des poutres gonflables en position déployée,
  • la Fig. 12 est une vue schématique en coupe transversale d'un second mode de réalisation des moyens d'obturation des orifices de la canalisation.
  • la Fig. 13 est une vue schématique en coupe transversale d'une variante du joint d'étanchéité entre deux poutres gonflables, en position dégonflée,
  • la Fig. 14 est une vue schématique en coupe transversale du joint d'étanchéité de la Fig. 13, en position gonflée,
  • la Fig. 15 est une vue schématique en coupe transversale d'une autre variante du joint d'étanchéité entre deux poutres gonflables, en position gonflée.
The invention will be better understood on reading the description which follows, given solely by way of example and made with reference to the appended drawings in which:
  • Fig. 1 is a schematic perspective view of an inflatable vault according to the invention,
  • Fig. 2 is a partial schematic view in section of one of the ends of the inflatable beams in the retracted position,
  • Fig. 3 is a schematic view of the means for supplying the inflatable beams with pressurized fluid,
  • Fig. 4 is a cross-sectional view of a first embodiment of the sliding means of the inflatable beams,
  • Fig. 5 is a cross-sectional view of a second embodiment of the sliding means of the inflatable beams,
  • Fig. 6 is a schematic view in cross section and in the closed position of a first embodiment of the means for closing the orifices of the pipe,
  • Fig. 7 is a schematic view in cross section and in the open position of the first embodiment of the means for closing the orifices of the pipe,
  • Fig. 8 is a schematic cross-sectional view of a first embodiment of the means for sliding the inflatable beams along the deployment or folding path,
  • Fig. 9 is a schematic cross-sectional view of a second embodiment of the means for sliding the inflatable beams along the deployment or folding path,
  • Fig. 10 is a schematic cross-sectional view of two contiguous inflatable beams, - FIG. 11 is a partial schematic view in section of one end of the inflatable beams in the deployed position,
  • Fig. 12 is a schematic cross-sectional view of a second embodiment of the means for closing the orifices of the pipe.
  • Fig. 13 is a schematic view in cross section of a variant of the seal between two inflatable beams, in the deflated position,
  • Fig. 14 is a schematic cross-sectional view of the seal of FIG. 13, in the inflated position,
  • Fig. 15 is a schematic cross-sectional view of another variant of the seal between two inflatable beams, in the inflated position.

Sur la Fig. 1, on a représenté schématiquement une voûte gonflable 1 constituée d'une pluralité de poutres gonflables, longitudinales A, B, C...M, N étanches et qui sont disposées côte à côte pour former la voûte 1.In Fig. 1, there is shown schematically an inflatable arch 1 made up of a plurality of inflatable beams, longitudinal A, B, C ... M, N waterproof and which are arranged side by side to form the vault 1.

A chaque extrémité des poutres A, B, C..., lesdites poutres sont montées coulissantes le long d'un chemin 2 et 2a de déploiement ou de repliage qui traverse les parois souples des poutres comme cela sera décrit ultérieurement.At each end of beams A, B, C ..., said beams are slidably mounted along a path 2 and 2a for deployment or folding which crosses the flexible walls of the beams as will be described later.

Chaque chemin 2 et 2a de déploiement ou de repliage est formé par une poutre rigide.Each path 2 and 2a of deployment or folding is formed by a rigid beam.

L'une des poutres rigides, comme par exemple la poutre rigide 2, est formée par une canalisation 3 de transport d'un fluide sous pression pour le gonflage ou le dégonflage des poutres A, B, C....One of the rigid beams, like for example the rigid beam 2, is formed by a pipe 3 of transport of a pressurized fluid for inflation or deflation of beams A, B, C ....

Selon une variante, chaque poutre rigide peut être formée par une canalisation de transport du fluide sous pression.According to a variant, each rigid beam can be formed by a fluid transport pipe under pressure.

La canalisation 3 de transport du fluide sous pression pour le gonflage ou le dégonflage des poutres A, B, C... communique, d'une part, à au moins une de ses extrémités avec des moyens 4 d'alimentation en fluide sous pression (Fig. 1) et, d'autre part, avec l'intérieur d'au moins une poutre gonflable A, B, C... par au moins un orifice 5, 5a, 5b, 5c... ménagé dans la paroi de la canalisation 3 et muni chacun de moyens d'obturation.The pipe 3 for transporting the fluid under pressure for inflation or deflation of beams A, B, C ... communicates, on the one hand, to at least one of its ends with means 4 for supplying fluid under pressure (Fig. 1) and, on the other hand, with the interior at least one inflatable beam A, B, C ... by at least an orifice 5, 5a, 5b, 5c ... formed in the wall of the line 3 and each provided with sealing means.

La canalisation 3 est formée par exemple par un tube rectiligne ou cintré de section circulaire (Fig. 4) ou par un tube cintré de section rectangulaire (Fig. 5).Line 3 is formed for example by a straight or curved tube of circular section (Fig. 4) or by a bent tube of rectangular section (Fig. 5).

Ce tube peut être réalisé en bois, en matériau composite ou encore en métal.This tube can be made of wood, composite material or metal.

Selon un exemple de réalisation représenté sur les Figs. 4 et 5, la canalisation 3 est composée, d'une part, de deux parois latérales 10a et 10b dont les deux lisières 11 et 12 sont rectilignes ou cintrées et qui sont réalisées par un empilage de lamelles de bois 13a, 13b, 13c...13n et, d'autre part, d'au moins deux planches de bois 14, 15, 16 et 17 rectilignes ou cintrées et collées sur le chant des lisières 11 et 12 desdites parois latérales 10a et 10b. According to an exemplary embodiment shown in Figs. 4 and 5, line 3 is composed, on the one hand, two side walls 10a and 10b whose two selvedges 11 and 12 are straight or curved and which are made by stacking wooden slats 13a, 13b, 13c ... 13n and, on the other hand, at least two wooden planks 14, 15, 16 and 17 straight or curved and glued to the edges of edges 11 and 12 of said side walls 10a and 10b.

Les moyens 4 d'alimentation en fluide sous pression des poutres gonflables A, B, C... sont formés par au moins un générateur de fluide sous pression.The means 4 for supplying fluid under pressure of inflatable beams A, B, C ... are formed by at least one pressurized fluid generator.

Selon un exemple de réalisation représenté à la Fig. 3, le générateur de fluide sous pression est un ventilateur centrifuge 4 comprenant un orifice d'aspiration 21 et un orifice de refoulement 22.According to an exemplary embodiment shown in Fig. 3, the pressurized fluid generator is a centrifugal fan 4 comprising a suction port 21 and a discharge orifice 22.

La liaison entre l'orifice d'aspiration 21 et l'orifice de refoulement 22 avec la canalisation 3 est réalisée au moyen de deux gaines souples respectivement 23 et 24.The connection between the suction opening 21 and the discharge orifice 22 with the pipe 3 is made by means of two flexible sheaths respectively 23 and 24.

La première gaine souple 23 a ses deux extrémités reliées à des brides fixes 25 et 26 dont l'une 25 est fixée sur l'orifice d'aspiration 21 et dont l'autre 26 est portée par une platine 27 montée sur l'orifice de refoulement 22 au moyen d'une bride 28.The first flexible sheath 23 has its two ends connected to fixed flanges 25 and 26, one of which 25 is fixed to the suction port 21 and of which the other 26 is carried by a plate 27 mounted on the discharge orifice 22 by means of a flange 28.

La seconde gaine souple 24 a l'une de ses extrémités reliées à une bride fixe 29 solidaire de la canalisation 3 et l'autre de ses extrémités reliée à une bride mobile 30 associée à des moyens de manoeuvre 31 permettant la connexion étanche de la seconde gaine souple 24, soit avec la bride 28 de l'orifice de refoulement 22 pour effectuer le gonflage des poutres A, B, C... et le déploiement de la voûte 1, soit avec la bride 26 de l'extrémité libre de la première gaine souple 23 pour effectuer le dégonflage des poutres A, B, C... et le repliage de la voûte 1.The second flexible sheath 24 has one of its ends connected to a fixed flange 29 secured to the line 3 and the other of its ends connected to a movable flange 30 associated with maneuvering means 31 allowing the tight connection of the second sheath flexible 24, either with the flange 28 of the delivery orifice 22 to inflate the beams A, B, C ... and the deployment of the vault 1, either with the flange 26 of the free end of the first flexible sheath 23 for deflate the beams A, B, C ... and folding the roof 1.

En se reportant maintenant aux figures 6 et 7, on va décrire les moyens d'obturation d'un orifice 5, les moyens d'obturation des autres orifices étant identiques.Referring now to Figures 6 and 7, we will describe the means for closing an orifice 5, the means for closing off the other orifices being identical.

Les moyens d'obturation sont formés par des portes étanches 40 associées à des moyens 41 de commande de leur ouverture ou de leur fermeture.The sealing means are formed by watertight doors 40 associated with control means 41 when they open or close.

Chaque porte étanche 40 comporte au moins un vantail 42 pivotant dans la canalisation 3 autour d'un point d'articulation 43 entre une position de fermeture (Fig. 6) assurant la continuité de la paroi externe de ladite canalisation 3 et une position inclinée d'ouverture (Fig. 7) assurant, au travers de l'orifice 5 correspondant, l'orientation du fluide sous pression de cette canalisation 3 vers la poutre gonflable correspondante A, B, C... ou de ladite poutre gonflable correspondante A, B, C... vers la dite canalisation 3.Each watertight door 40 includes at least one leaf 42 pivoting in line 3 around a articulation point 43 between a closed position (Fig. 6) ensuring the continuity of the external wall of said pipe 3 and an inclined opening position (Fig. 7) ensuring, through orifice 5 corresponding, the orientation of the fluid under pressure of this pipe 3 to the corresponding inflatable beam A, B, C ... or said inflatable beam corresponding A, B, C ... to the said pipe 3.

Selon l'exemple de réalisation représenté aux Figs. 6 et 7, la canalisation 3 comprend deux orifices opposés 5 munis de vantaux 42 s'ouvrant l'un vers l'autre et comportant un mécanisme de serrage en position de fermeture de ces vantaux 42.According to the embodiment shown in Figs. 6 and 7, the pipe 3 comprises two orifices opposite 5 provided with leaves 42 opening towards one another and comprising a clamping mechanism in the position of closing of these leaves 42.

Ce mécanisme de serrage des vantaux 42 en position de fermeture est composé de deux biellettes 44 et 45 articulées entres elles à une de leurs extrémités en un point commun d'articulation 46 et articulées chacune à leur autre extrémité sur chacun des vantaux 42 en un point d'articulation 47.This tightening mechanism of the leaves 42 in closed position consists of two rods 44 and 45 articulated between them at one of their ends at a common point of articulation 46 and articulated each at their other end on each of the leaves 42 at a point of articulation 47.

Les moyens 41 de commande de l'ouverture ou de fermeture des vantaux 42 sont formés par exemple par un vérin dont l'extrémité libre de la tige 41a de vérin est reliée aux biellettes 44 et 45 en leur point commun d'articulation 46.The means 41 for controlling the opening or for closing the leaves 42 are formed for example by a cylinder whose free end of the cylinder rod 41a is connected to the rods 44 and 45 at their common point hinge 46.

Chaque vantail 42 est formé de deux éléments 50 et 51 démontables l'un par rapport à l'autre et, solidarisés entre eux, à l'aide d'une pluralité de vis 52 accessibles depuis l'extérieur de la canalisation 3.Each leaf 42 is formed of two elements 50 and 51 removable from each other and, joined together, using a plurality of screws 52 accessible from outside the pipeline 3.

Le premier élément 50 est ajouré à sa partie centrale et porte, d'une part, les articulations 43 et 47 et, d'autre part, un joint d'étanchéité 53 avec la paroi interne de la canalisation 3 sur le pourtour de l'orifice 5 de ladite canalisation 3.The first element 50 is openwork in its part central and carries, on the one hand, the joints 43 and 47 and, on the other hand, a seal 53 with the inner wall of line 3 around the periphery of the orifice 5 of said pipe 3.

La séparation du second élément 51 par rapport au premier élément 50 permet d'accéder à l'intérieur de la canalisation 3 pour la maintenance des moyens 41 de commande de l'ouverture ou de la fermeture des vantaux 42.The separation of the second element 51 by compared to the first element 50 provides access to the interior of line 3 for the maintenance of the means 41 for controlling the opening or closing of leaves 42.

Le second élément 51 obture la partie centrale du premier élément 50 et assure la continuité de la paroi externe de la canalisation 3 en position de fermeture du vantail 42, comme représentée à la Fig. 6.The second element 51 closes the part center of the first element 50 and ensures continuity of the external wall of the pipe 3 in the position of leaf 42 closed, as shown in FIG. 6.

Ainsi que représenté sur les Figs. 8 et 9, les parois contiguës 60 et 61 des poutres gonflables adjacentes par exemple A et B sont reliées entres elles de façon étanche autour de la canalisation 3 correspondante à l'aide d'une platine 62 portant les moyens de coulissement constitués par exemple par un galet 63 ou par un patin.As shown in Figs. 8 and 9, the adjoining walls 60 and 61 of the inflatable beams adjacent for example A and B are interconnected tightly around the corresponding pipe 3 using a plate 62 carrying the means of sliding constituted for example by a roller 63 or by a skate.

Chaque galet 63 est destiné à rouler sur la paroi externe de la canalisation 3 au cours du déploiement ou du repliage de la voûte 1.Each roller 63 is intended to roll on the external wall of line 3 during deployment or folding the vault 1.

Chaque platine 62 ménage un espace libre 64 avec la canalisation correspondante 3 permettant l'intercommunication entre les enceintes sous pression des poutres gonflables adjacentes par exemple A et B.Each plate 62 saves a free space 64 with the corresponding pipe 3 allowing intercommunication between the pressure vessels adjacent inflatable beams for example A and B.

L'espace libre 64 est soit totalement libre, soit obturé en permanence ou soit obturé momentanément par exemple après déploiement de la voûte.The free space 64 is either completely free, either permanently closed or temporarily closed for example after deployment of the arch.

Comme représenté à la Fig. 8, l'espace libre 64 est obturé en permanence par un joint d'étanchéité 65 fixé sur la platine 62 et frottant sur la paroi externe de la canalisation 3 au cours du déploiement ou de l'escamotage de la voûte 1 de façon à isoler les enceintes sous pression des poutres gonflables adjacentes par exemple A et B.As shown in Fig. 8, free space 64 is permanently sealed with a seal 65 fixed on plate 62 and rubbing against the external wall Line 3 during deployment or the retraction of the vault 1 so as to isolate the speakers pressurized adjacent inflatable beams by example A and B.

Comme représenté à la Fig. 9, l'espace libre 64 est obturable momentanément par un joint d'étanchéité 66 gonflable et repliable. As shown in Fig. 9, free space 64 can be closed temporarily with a seal 66 inflatable and foldable.

Ce joint d'étanchéité 66 est fixé sur la platine 62 à l'intérieur de laquelle il est replié en l'absence de pressurisation et il se déploie sous l'effet de sa pressurisation interne pour venir s'appliquer de façon étanche sur la paroi externe de la canalisation 3.This seal 66 is fixed on the plate 62 inside which it is folded in the absence of pressurization and it deploys under the effect of its internal pressurization to apply from tightly on the external wall of the pipe 3.

Comme représenté à la Fig. 9, l'arrimage étanche de chaque paroi des poutres gonflables adjacentes par exemple A et B avec les platines 62 est réalisé à l'aide d'une bride 67a et 67b maintenue prisonnière dans un ourlet annulaire 68a et 68b formé par retournement de la paroi 60 et 61 correspondante.As shown in Fig. 9, stowage watertight on each wall of adjacent inflatable beams for example A and B with the plates 62 is produced at using a clamp 67a and 67b held captive in an annular hem 68a and 68b formed by turning over the corresponding wall 60 and 61.

Les brides 67a et 67b sont fixées sur la platine 62 au moyen d'une pluralité de boulons 69.The flanges 67a and 67b are fixed on the plate 62 by means of a plurality of bolts 69.

Comme cela apparaít sur les figures 2 et 8, les platines adjacentes 62 sont, lorsque les poutres sont dégonflées et escamotées, maintenues écartées par des entretoises 70 à une distance telle que la longueur de la canalisation correspondante 3 comprise entre ces platines adjacentes 62 comporte au moins une partie de la surface d'au moins un orifice obturable 5d, 5c....As shown in Figures 2 and 8, the adjacent plates 62 are, when the beams are deflated and retracted, kept apart by spacers 70 at a distance such that the length of the corresponding pipe 3 between these adjacent decks 62 has at least a portion of the surface of at least one closable orifice 5d, 5c ....

Selon une variante, l'entretoise 70 peut porter un galet, non représenté, de guidage sur la canalisation 3 correspondante.Alternatively, the spacer 70 can wear a guide roller, not shown, on the corresponding line 3.

Selon encore une variante, l'entretoise 70 peut être fixée à la fois sur les platines adjacentes 62 de la première poutre A, la longueur de cette entretoise correspondant à l'écartement de ces platines 62 lorsque la première poutre A est gonflée.According to another variant, the spacer 70 can be fixed at the same time on the adjacent plates 62 of the first beam A, the length of this spacer corresponding to the spacing of these plates 62 when the first beam A is inflated.

Comme représenté à la Fig. 10, les parois contiguës 60 et 61 des poutres gonflables adjacentes par exemple A et B sont reliées entres elles le long de l'espace qui s'étend entre les platines 62 et le long de l'espace entre une platine 62 et la ou les extrémités des poutres gonflables, par au moins une bande auto-agrippante 71. As shown in Fig. 10, the walls contiguous 60 and 61 of the inflatable beams adjacent by example A and B are linked together along the space which extends between the plates 62 and along the space between a plate 62 and the end (s) of the inflatable beams, by at least one hook-and-loop strap 71.

Cette bande auto-agrippante 71 est composée de deux parties 72 et 73 qui peuvent s'accrocher l'une à l'autre ou se décrocher l'une de l'autre.This self-gripping strip 71 is composed of two parts 72 and 73 which can hang on one to the other or to drop from each other.

Chacune de ces parties 72 et 73 est fixée par exemple par soudage au moins le long de ses lisières longitudinales sur chacune des parois 60 et 61 des poutres adjacentes par exemple A et B.Each of these parts 72 and 73 is fixed by example by welding at least along its edges longitudinal on each of the walls 60 and 61 of the adjacent beams for example A and B.

Selon un autre mode de réalisation, les parois contiguës 60 et 61 des poutres gonflables adjacentes par exemple A et B sont reliées entre elles par une platine continue, non représentée, s'étendant entre les chemins de déploiement 2 et 2a. Dans ce cas, chaque platine comporte à chacune de ses extrémités un orifice de passage du chemin de déploiement correspondant.According to another embodiment, the adjoining walls 60 and 61 of the adjacent inflatable beams for example A and B are linked together by a continuous plate, not shown, extending between the deployment paths 2 and 2a. In this case, each plate has at each of its ends an orifice crossing the corresponding deployment path.

En se reportant maintenant aux figures et notamment aux figures 2 et 11, on va décrire le fonctionnement de la voûte gonflable 1 selon l'invention.Referring now to the figures and in particular in Figures 2 and 11, we will describe the operation of the inflatable arch 1 according to the invention.

Pour le déploiement de cette voûte gonflable 1, les orifices 5, 5a, 5c et 5d sont fermés par les vantaux correspondant 42 et l'orifice 5b est ouvert.For the deployment of this inflatable arch 1, the openings 5, 5a, 5c and 5d are closed by the corresponding leaves 42 and the orifice 5b is open.

Le ventilateur 3 fonctionne en gonflage et la poutre A qui se trouve en face de l'orifice 5b ouvert est gonflée, puis la poutre B est gonflée car elle se trouve dans un premier temps en communication avec la poutre A et dans un second temps, après un début de gonflage en face de l'orifice 5b ouvert.Fan 3 operates during inflation and the beam A which is opposite the open orifice 5b is inflated, then beam B is inflated because it is initially in communication with beam A and secondly, after a start of inflation in face of open port 5b.

Ensuite, l'orifice 5b est fermé et l'orifice 5c est ouvert de façon à gonfler les poutres C et D et ainsi de suite.Then, the opening 5b is closed and the opening 5c is open so as to inflate the beams C and D and and so on.

En cas de baisse de pression par des fuites diverses ou pour compléter la pressurisation dans les poutres après le déploiement, on ouvre l'orifice 5 pour pressuriser les poutres A et B ou l'orifice 5a pour pressuriser les poutres C et D ou les autres orifices pour pressuriser les poutres correspondantes. In case of pressure drop due to leaks various or to complete the pressurization in the beams after deployment, we open hole 5 to pressurize the beams A and B or the orifice 5a to pressurize the beams C and D or the other orifices to pressurize the corresponding beams.

Au moment de l'escamotage de la voûte 1, l'ensemble des orifices 5, 5a, 5b, 5c... est fermé et le ventilateur 4 fonctionne en aspiration.When vault 1 retracts, all the openings 5, 5a, 5b, 5c ... are closed and the fan 4 operates in suction.

L'orifice 5d est tout d'abord ouvert pour dégonfler la poutre N, puis la poutre M qui communique avec la poutre N.The 5d port is first opened for deflate the N beam, then the M beam which communicates with beam N.

L'orifice 5d est fermé et l'orifice 5c est ouvert pour dégonfler la poutre D, puis la poutre C.Port 5d is closed and Port 5c is open to deflate beam D, then beam C.

Ensuite, l'orifice 5c est fermé et l'orifice 5b est ouvert pour dégonfler les poutres A et B afin de replier l'ensemble de la voûte.Then, the opening 5c is closed and the opening 5b is open to deflate the beams A and B in order to fold the entire arch.

En se reportant maintenant à la Fig. 12, on va décrire un second mode de réalisation des moyens d'obturation d'un orifice 5.Referring now to FIG. 12, we will describe a second embodiment of the means closing an orifice 5.

Ces moyens d'obturation ne sont utilisés que pour le gonflage des poutres A, B, C...M, N, le dégonflage de ces poutres étant réalisé par un autre orifice 5 équipé d'une porte étanche 40 selon le premier mode de réalisation décrit précédemment.These sealing means are only used for inflation of beams A, B, C ... M, N, deflation of these beams being produced by another orifice 5 fitted with a waterproof door 40 according to the first mode of realization described previously.

Les moyens d'obturation sont, dans ce cas, formés par des clapets anti-retour 74 actionnés par la différence des pressions de fluide régnant, d'une part, dans la canalisation 3 et, d'autre part, dans ladite au moins une poutre gonflable A, B, C... M, N.The sealing means are, in this case, formed by non-return valves 74 actuated by the difference of the prevailing fluid pressures, on the one hand, in line 3 and, on the other hand, in said at minus an inflatable beam A, B, C ... M, N.

Chaque clapet anti-retour 74 comporte deux membranes associées 75 et 76 en matériau souple.Each check valve 74 has two associated membranes 75 and 76 of flexible material.

La première membrane 75 obture l'orifice 5 entre l'intérieur de la canalisation 3 et la poutre gonflable par exemple A et la seconde membrane 76 entoure ledit orifice 5.The first membrane 75 closes the orifice 5 between the inside of line 3 and the beam inflatable for example A and the second membrane 76 surrounds said orifice 5.

Ces deux membranes 75 et 76 sont reliées entre elles sur une portion de leur périphérie.These two membranes 75 and 76 are connected between them on a portion of their periphery.

Par exemple, elles sont reliées entre elles dans les portions 77a et 77b et elles ne sont pas reliées entre elles dans la portion 78. For example, they are interconnected in portions 77a and 77b and they are not connected between them in portion 78.

Avantageusement, ces deux membranes 75 et 76 sont disposées dans une cavité 80 ménagée dans la paroi de la canalisation 3 et protégées par des portes de visite 81 munies d'orifices 82a et 82b qui mettent en communication cette cavité 80 avec l'intérieur de la poutre gonflable correspondante par exemple A.Advantageously, these two membranes 75 and 76 are arranged in a cavity 80 formed in the wall of line 3 and protected by doors of visit 81 provided with orifices 82a and 82b which bring into communication this cavity 80 with the interior of the corresponding inflatable beam for example A.

Sur la Fig. 12 on a représenté, sur la même canalisation 3, deux clapets 74 dont l'un est dans une position d'obturation F et dont l'autre est dans une position d'ouverture G.In Fig. 12 is shown on the same line 3, two valves 74, one of which is in a shutter position F and the other of which is in a open position G.

Lorsque l'on met en pression la poutre gonflable A à partir du générateur de fluide sous pression 4 fonctionnant en gonflage la pression croít dans la canalisation 3 à un niveau supérieur à la pression régnant dans cette poutre A et par suite dans la cavité 80.When we pressurize the beam inflatable A from the fluid generator under pressure 4 working in inflation the pressure increases in line 3 at a level higher than the pressure prevailing in this beam A and consequently in cavity 80.

Sous l'effet de cette différence de pression, les membranes 75 et 76 s'écartent l'une de l'autre dans la position d'ouverture G en dégageant l'orifice 5 et en laissant apparaítre une ou plusieurs ouverture 79 dans la ou les portions de la périphérie des membranes 75 et 76 où elles ne sont pas reliées entre elles.Under the effect of this pressure difference, membranes 75 and 76 move away from each other in the open position G by clearing the orifice 5 and by revealing one or more opening 79 in the portion (s) of the periphery of the membranes 75 and 76 where they are not interconnected.

Ce débit de fluide sous pression passe alors de la canalisation 3 par l'orifice 5, puis entre les membranes 75 et 76 par l'ouverture 79 et par les orifices 82a et 82b vers la poutre gonflable A.This pressurized fluid flow then passes from line 3 through port 5, then between membranes 75 and 76 through opening 79 and through orifices 82a and 82b to the inflatable beam A.

Lorsque le générateur de fluide sous pression 4 est arrêté, la pression chute dans la canalisation 3 et la pression régnant alors dans la poutre gonflable A devient supérieure à celle régnant dans ladite canalisation 3.When the pressurized fluid generator 4 is stopped, the pressure drops in line 3 and the pressure then prevailing in the inflatable beam A becomes greater than that prevailing in said pipeline 3.

Dans ce cas, les deux membranes 75 et 76 sont appliquées l'une contre l'autre de façon étanche dans la position de fermeture F en aplatissant la ou les ouvertures 79 et en obturant l'orifice 5. In this case, the two membranes 75 and 76 are applied tightly against each other in the closing position F by flattening the opening (s) 79 and closing the orifice 5.

Selon une variante représentée sur les Figs. 13 à 15, l'espace libre 64 est obturable momentanément par un joint d'étanchéité 90 formé de trois parties concentriques.According to a variant shown in Figs. 13 to 15, the free space 64 is temporarily closable by a gasket 90 formed of three parts concentric.

Ces trois parties concentriques sont constituées par une double membrane annulaire 91, une lèvre élastique 92 ménagée sur l'un des bords de la double membrane 91 et par au moins un talon 93 de fixation sur la platine 62 et ménagé sur l'autre bord de ladite double membrane 91.These three concentric parts are made up by a double annular membrane 91, a lip elastic 92 formed on one of the edges of the double membrane 91 and by at least one heel 93 for attachment to plate 62 and formed on the other edge of said double membrane 91.

Cette double membrane annulaire 91 ménage intérieurement un espace 94 relié à des moyens de gonflage, non représentés.This double annular membrane 91 household internally a space 94 connected to inflation means, not shown.

La lèvre élastique 92 est formée par un anneau torique.The elastic lip 92 is formed by a O-ring.

D'autre part, le joint d'étanchéité 90 est réalisé en gomme élastique d'élastomère ou de plastomère renforcée par une nappe de câblés 95 disposés radialement et s'étendant de manière continue dans ledit talon 93 et la double membrane annulaire 91.On the other hand, the seal 90 is made of elastic rubber of elastomer or plastomer reinforced by a layer of cables 95 arranged radially and extending continuously in said heel 93 and the double annular membrane 91.

Les câblés 95 sont en métal, en textile ou en fibres de verre.Cables 95 are made of metal, textile or glass fibers.

La double membrane annulaire 91 du joint d'étanchéité 90 est déformable entre un premier état non gonflé (Fig. 13) assurant l'étanchéité entre deux poutres A, B, C...M, N adjacentes par serrage élastique de la lèvre 92 sur la canalisation 3 et un second état gonflé (Fig. 14) ménageant un passage entre les deux poutres A, B, C...M, N adjacentes.The double annular membrane 91 of the seal seal 90 is deformable between a first non- inflated (Fig. 13) sealing between two beams A, B, C ... M, N adjacent by elastic tightening of the lip 92 on line 3 and a second inflated state (Fig. 14) providing a passage between the two beams A, B, C ... M, N adjacent.

Selon un premier mode de réalisation représenté sur les Figs. 13 et 14, l'espace interne 94 de la double membrane 91 est relié aux moyens de gonflage par un tuyau 96 et la pression exercée par la lèvre élastique 92 sur la canalisation 3, lorsque le joint 90 est en position gonflée, est ajustée par un anneau 97 solidaire de la platine 62 et sur lequel ledit joint prend appui en position dégonflée. La position de l'anneau 97 par rapport à la platine 62 est réglable. Ce réglage peut éventuellement être obtenu par des cales d'épaisseur 98.According to a first embodiment shown in Figs. 13 and 14, the internal space 94 of the double membrane 91 is connected to the inflation means by a hose 96 and the pressure exerted by the elastic lip 92 on line 3, when the gasket 90 is in inflated position, is adjusted by a ring 97 secured of plate 62 and on which said seal is supported in deflated position. The position of the ring 97 by compared to plate 62 is adjustable. This setting can possibly obtained by shims of thickness 98.

Selon un second mode de réalisation représenté à la Fig. 15, l'une des membranes de la double membrane 91 est disposée entre deux flasques de rigidification, respectivement 99a et 99b, et le joint d'étanchéité 90 est fixé sur la platine 62, au niveau des talons 93, par un organe de fixation 100.According to a second embodiment shown in Fig. 15, one of the membranes of the double membrane 91 is arranged between two stiffening flanges, 99a and 99b respectively, and the seal 90 is fixed on the plate 62, at the level of the heels 93, by a fastening member 100.

Le flasque 99a disposé entre les deux membranes de la double membrane 91 comporte un conduit 101 débouchant dans l'espace interne 94 et relié aux moyens de gonflage, non représentés.The flange 99a disposed between the two membranes of the double membrane 91 has a conduit 101 opening into internal space 94 and connected to the means inflation, not shown.

La configuration du joint 90, gonflé et escamoté ou dégonflé et appliqué contre la canalisation 3 entre chaque poutre A,B, C...M, N règle le gonflage ou le dégonflage successif de ces poutres en fermant ou en ouvrant le passage d'intercommunication 64. Pour le gonflage successif desdites poutres A, B, C...M, N, on escamote successivement le joint 90 correspondant par gonflage, puis on le dégonfle lorsque la poutre correspondante a été gonflée à la pression désirée.The configuration of the gasket 90, inflated and retracted or deflated and applied against the pipeline 3 between each beam A, B, C ... M, N adjusts the inflation or successive deflation of these beams by closing or opening the intercom passage 64. For the successive inflation of said beams A, B, C ... M, N, on successively retract the corresponding gasket 90 by inflation, then deflate it when the corresponding beam has been inflated to the desired pressure.

L'étanchéité des poutres A, B, C...M, N est assurée par les joints d'étanchéité 90 qui, en état dégonflé, s'appliquent, grâce à leur forme et leur structure, sur la canalisation 3.The tightness of beams A, B, C ... M, N is provided by seals 90 which, in good condition deflated, apply, thanks to their shape and structure, on line 3.

Selon une variante, la canalisation 3 de transport du fluide sous pression est disposée au milieu desdites poutres A, B, C...M, N.According to a variant, the line 3 of transport of pressurized fluid is arranged in the middle said beams A, B, C ... M, N.

Claims (20)

  1. Inflatable arch which can be deployed and retracted by inflation and deflation, respectively, comprising:
    a plurality of longitudinal inflatable beams A, B, C...M, N arranged side by side,
    means (40) for supplying the inflatable beams A, B, C...M, N with pressurised fluid,
    means for sliding the beams A, B, C...M, N along at least one deployment or retraction pathway formed by a rigid beam passing through these beams in leaktight manner,
    characterised in that the rigid beam is formed by a conduit (3) for transporting pressurised fluid for the inflation or deflation of the beams A, B, C...M, N which communicates, on the one hand, at least one of its ends, with the means (4) for supplying pressurised fluid and, on the other hand, with the inside of at least one inflatable beam A, B, C...M, N via at least one orifice (5, 5a, 5b, 5c, 5d) provided in the wall of the conduit (3) and equipped with sealing means (40).
  2. Inflatable arch according to claim 1, characterised in that the conduit (3) is formed by a tube of circular cross section.
  3. Inflatable arch according to claim 1, characterised in that the conduit (3) is formed by a tube of rectangular cross section.
  4. Inflatable arch according to claim 1, characterised in that the means for supplying the inflatable beams A, B, C...M, N are formed by at least one generator (4) of pressurised fluid.
  5. Inflatable arch according to one of claims 1 to 4, characterised in that the pressurised fluid generator (4) is a centrifugal fan comprising, on the one hand, an intake port (21) provided with a first flexible duct (23) the free end of which comprises means (26) for connection to a second flexible duct (24) connected to the conduit (3) and, on the other hand, a displacement port (22) comprising means (28) for connection to the second flexible duct (24) adapted to be connected by connecting means to the displacement port (22) in order to inflate the beams A, B, C...M, N or alternatively to the free end of the first flexible duct (23) in order to deflate the said beams.
  6. Inflatable arch according to claim 1, characterised in that the sealing means are formed by leaktight gates (40) associated with means (41, 41a) for controlling their opening or closing.
  7. Inflatable arch according to claim 6, characterised in that each gate (40) comprises at least one flap (42) pivoting in the conduit (3) between a closed position which ensures the continuity of the outer wall of said conduit (3) and an inclined open position which ensures, across the orifices (5, 5a, 5b, 5c, 5d), that the pressurised fluid is oriented from this conduit (3) towards at least one inflatable beam A, B, C...M, N or from said at least one inflatable beam A, B, C...M, N towards said conduit (3).
  8. Inflatable arch according to claims 1, 6 and 7, characterised in that the conduit (3) comprises at least two opposing openings (5, 5a, 5b, 5c, 5d) provided with flaps (42) which open towards one another and comprising a mechanism for locking in the closed positions, made up of two connecting rods (44, 45) articulated on one another at one end and each articulated, at their other end, on each of said flaps (42), said means for controlling the opening or closing of the flaps (42) being connected to the connecting rods (44, 45) at their common articulation point (46).
  9. Inflatable arch according to claim 1, characterised in that the sealing means are formed by non-return valves (74) actuated by the fluid pressure differences prevailing, on the one hand, in said conduit (3) and, on the other hand, in the at least one inflatable beam A, B, C...M, N.
  10. Inflatable arch according to claim 9, characterised in that each non-return valve (74) comprises at least one first membrane (75) sealing the corresponding opening (5) and cooperating with a second membrane (76) surrounding said orifice (5) and connected, on part of its periphery, to the first membrane (75), said first and second membranes (75, 76) being movable, by the difference in fluid pressures, between a closed position of the corresponding orifice (5) wherein the membranes (75, 76) are applied tightly against one another and an open position of said orifice (5) wherein the membranes (75, 76) are spaced from one another and define between them at least one opening (79) for the passage of the fluid.
  11. Inflatable arch according to one of claims 1 to 5, characterised in that the adjacent walls (60, 61) of the adjacent inflatable beams A, B, C...M, N are connected to one another in leaktight manner around at least one corresponding conduit (3) by means of a plate (62) carrying the sliding means (63) and defining, with said at least one conduit (3), a free space (64) which can be closed off by a sealing joint (65, 66, 90).
  12. Inflatable arch according to claim 11,
    characterised in that the sealing joint (65) is carried by the corresponding plate (62) and rubs against the outer wall of the conduit (3) during the deployment or retraction of the arch (1).
  13. Inflatable arch according to claim 11 or 12,
    characterised in that the sealing joint (66) consists of an inflatable joint.
  14. Inflatable arch according to claim 11,
    characterised in that the sealing joint (90) is formed by an annular double membrane (91) comprising, on one of its edges, a flexible lip (92) and, on its other edge, at least one lug (93) for fixing to the plate (62), said annular double membrane (91) defining on the inside a space (94) connected to inflation means and being deformable between a first, uninflated state providing a seal between two adjacent beams A, B, C...M, N by flexible clamping of the lip (92) over the conduit (3) and a second, inflated state defining a passage between the two adjacent beams A, B, C...M, N.
  15. Inflatable arch according to claim 14,
    characterised in that the flexible lip (92) is formed by a toroidal ring.
  16. Inflatable arch according to claims 14 and 15,
    characterised in that the sealing joint (90) is made of flexible elastomer or plastomer rubber reinforced with a layer of cables (95) arranged radially and extending continuously into said lug (93) and the annular double membrane (91).
  17. Inflatable arch according to claim 11 or 14,
    characterised in that the adjacent plates (62) are held apart from one another by at least one spacer (70), at a spacing such that the length of the conduit (3) between said adjacent plates (62) comprises at least part of the surface of at least one of said sealable orifices (5, 5a, 5b, 5c, 5d).
  18. Inflatable arch according to claim 17,
    characterised in that the spacer (70) is fixed at the same time to the adjacent plates (62) of the first beam A, the length of said spacer (70) corresponding to the spacing of these plates (62) when the first beam A is inflated.
  19. Inflatable arch according to one of the preceding claims, characterised in that the adjacent walls (60, 61) of the adjacent inflatable beams A, B, C...M, N are connected to one another by at least one self-gripping strip (71).
  20. Inflatable arch according to one of the preceding claims, characterised in that the conduit (3) for conveying pressurised fluid is arranged in the centre of said beams A, B, C...M, N.
EP96917530A 1995-05-31 1996-05-22 Deployable and collapsible inflatable dome Expired - Lifetime EP0828910B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9506488A FR2734856B1 (en) 1995-05-31 1995-05-31 DEPLOYABLE AND RETRACTABLE INFLATABLE VOUTE
FR9506488 1995-05-31
PCT/FR1996/000765 WO1996038642A1 (en) 1995-05-31 1996-05-22 Deployable and collapsible inflatable dome

Publications (2)

Publication Number Publication Date
EP0828910A1 EP0828910A1 (en) 1998-03-18
EP0828910B1 true EP0828910B1 (en) 1999-04-28

Family

ID=9479560

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96917530A Expired - Lifetime EP0828910B1 (en) 1995-05-31 1996-05-22 Deployable and collapsible inflatable dome

Country Status (15)

Country Link
US (1) US5913775A (en)
EP (1) EP0828910B1 (en)
JP (1) JPH11505909A (en)
CN (1) CN1186533A (en)
AT (1) ATE179481T1 (en)
AU (1) AU701084B2 (en)
BR (1) BR9608866A (en)
CA (1) CA2222195A1 (en)
DE (1) DE69602264T2 (en)
DK (1) DK0828910T3 (en)
ES (1) ES2133967T3 (en)
FR (1) FR2734856B1 (en)
NO (1) NO309159B1 (en)
RU (1) RU2158340C2 (en)
WO (1) WO1996038642A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2761707B1 (en) 1997-04-02 1999-06-04 Scebep Spironef INFLATABLE, DEPLOYABLE AND RETRACTABLE
FR2772814B1 (en) * 1997-12-24 2000-03-10 Scebep Spironef INFLATABLE, DEPLOYABLE AND RETRACTABLE
FR2810062B1 (en) * 2000-06-08 2003-12-05 Joseph Mercurio GREENHOUSE HORTICLED DEBACHABLE
US6463699B1 (en) * 2001-03-23 2002-10-15 Obi Corporation Air beam construction using differential pressure chambers
US8978693B2 (en) 2013-01-28 2015-03-17 Windcatcher Technology LLC Inflation valve allowing for rapid inflation and deflation of an inflatable object
KR102365137B1 (en) * 2013-07-10 2022-02-17 토마스 윌리엄스 Improved mobile paint booth system and method for applying paint to a vehicle
SK7400Y1 (en) * 2015-04-02 2016-04-01 Zepelin S R O Pneumatic connection of inflatable beams for inflatable structures

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH566745A5 (en) * 1972-07-28 1975-09-30 Bruelhart Joseph
US4317315A (en) * 1979-07-25 1982-03-02 Leblang Dennis W Inflatable shelter
FR2621944A1 (en) * 1987-10-15 1989-04-21 Delamare Guy INFLATABLE DOUBLE WALL WITH POLYLOBEE
FR2677394B1 (en) * 1991-06-04 1993-09-24 Spironef Ind INFLATABLE, DEPLOYABLE AND RETRACTABLE.

Also Published As

Publication number Publication date
CN1186533A (en) 1998-07-01
CA2222195A1 (en) 1996-12-05
RU2158340C2 (en) 2000-10-27
DE69602264T2 (en) 2000-01-05
NO975529D0 (en) 1997-12-01
DE69602264D1 (en) 1999-06-02
NO975529L (en) 1997-12-01
BR9608866A (en) 1999-06-15
ATE179481T1 (en) 1999-05-15
WO1996038642A1 (en) 1996-12-05
FR2734856B1 (en) 1997-07-25
DK0828910T3 (en) 1999-11-08
AU6007096A (en) 1996-12-18
AU701084B2 (en) 1999-01-21
ES2133967T3 (en) 1999-09-16
FR2734856A1 (en) 1996-12-06
US5913775A (en) 1999-06-22
EP0828910A1 (en) 1998-03-18
JPH11505909A (en) 1999-05-25
NO309159B1 (en) 2000-12-18

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