EP0828910A1 - Deployable and collapsible inflatable dome - Google Patents

Deployable and collapsible inflatable dome

Info

Publication number
EP0828910A1
EP0828910A1 EP96917530A EP96917530A EP0828910A1 EP 0828910 A1 EP0828910 A1 EP 0828910A1 EP 96917530 A EP96917530 A EP 96917530A EP 96917530 A EP96917530 A EP 96917530A EP 0828910 A1 EP0828910 A1 EP 0828910A1
Authority
EP
European Patent Office
Prior art keywords
inflatable
pipe
beams
orifice
pressurized fluid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP96917530A
Other languages
German (de)
French (fr)
Other versions
EP0828910B1 (en
Inventor
Guy Delamare
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sa Spironef Technologies
Original Assignee
Civile D'exploitation Des Brevets Et Procedes Spironef Ste
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Civile D'exploitation Des Brevets Et Procedes Spironef Ste filed Critical Civile D'exploitation Des Brevets Et Procedes Spironef Ste
Publication of EP0828910A1 publication Critical patent/EP0828910A1/en
Application granted granted Critical
Publication of EP0828910B1 publication Critical patent/EP0828910B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H15/00—Tents or canopies, in general
    • E04H15/20—Tents or canopies, in general inflatable, e.g. shaped, strengthened or supported by fluid pressure
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H15/00—Tents or canopies, in general
    • E04H15/20—Tents or canopies, in general inflatable, e.g. shaped, strengthened or supported by fluid pressure
    • E04H2015/202—Tents or canopies, in general inflatable, e.g. shaped, strengthened or supported by fluid pressure with inflatable panels, without inflatable tubular framework
    • E04H2015/204—Tents 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 present invention relates to an inflatable, deployable and retractable vault by inflating and deflating respectively.
  • these inflatable arches comprise a plurality of longitudinal beams arranged side by side, means for sliding at least one end of the beams along at least one deployment or folding path and means for supply of said beams with pressurized fluid.
  • This type of vaults is designed, among other things, to allow its deployment by simple inflation, as well as its retraction by deflation, which allows at will to cover a space in order to protect it from bad weather and to discover it in good weather. We know more particularly in the FR-
  • A-2 621 944 an inflatable arch in which each beam has two opposite panels forming the sole and each constituting one of the lobes of the inner and outer wall of the arch and two side panels forming the core of the beam.
  • the means for supplying the beam with inflation fluid are formed by at least one conduit passing through said beams and being extensible in its length, its stretching and its retraction being controlled by the deployment and retraction of the vault respectively.
  • the supply duct is carmine to all the beams and communicates with each of said beams by a closable orifice controlled by shutter means and the supply duct sealingly passes through an opening arranged in each of the side panels .
  • the deployment path is located outside laughing beams, which leads to stresses distributed over a reduced area of the wall.
  • an inflatable arch comprising a plurality of longitudinal beams arranged side by side, means for sliding at least one end of the beams along at least one deployment path or folding and means for supplying the beams with inflation fluid.
  • the deployment or folding path crosses said beams in a sealed manner.
  • This deployment or folding path extends longitudinally inside a conduit for supplying pressurized fluid and the sliding means are located between said path and the wall of said conduit.
  • the object of the invention is to propose an inflatable, deployable and retractable vault which makes it possible to avoid the drawbacks mentioned above.
  • the subject of the invention is therefore an inflatable arch, deployable and retractable by inflation and deflation respectively, comprising:
  • - 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 pipe for transporting the fluid under pressure for inflating or deflating the beams communi ⁇ as, 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 inflatable beam by at least one orifice made in the wall of the pipe and provided with sealing means.
  • 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 generator of pressurized fluid,
  • 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 connection means with a second flexible sheath connected to the pipe, and on the other hand, a discharge orifice comprising means of connection with the second flexible sheath intended to be connected alternately by said connection means with the discharge orifice to inflate the beams or with the free end of the first sheath flexible for deflating said beams, the sealing 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 pipeline between a closed position ensuring the continuity of the external wall of said pipeline and an inclined opening position ensuring, through the orifices, the orientation of the fluid under pressure of 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 that 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 orifices closable.
  • 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 means for sliding 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 sectional view transverse 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.
  • FIG. 1 there is shown schematically an inflatable arch 1 made up of a plurality of inflatable beams, longitudinal A, B, C ... M, N sealed and which are arranged side by side to form the arch 1.
  • said beams are slidably mounted along a path 2 and 2a for deployment or folding which passes through the flexible walls of the beams as will be described later.
  • Each path 2 and 2a for deployment or folding is formed by a rigid beam.
  • each rigid beam is formed by a pipe 3 for transporting a pressurized fluid for the inflation or deflation of the beams A, B, C ...
  • each rigid beam can be formed by a pipe for transporting the pressurized fluid.
  • the pipe 3 for transporting the pressurized fluid for inflating or deflating the beams A, B, C ... communicates, on the one hand, at at least one of its ends with means 4 for supplying pressurized fluid (Fig. 1) and, on the other hand, with the interior of at least one inflatable beam A, B, C ... through at least one orifice 5, 5a, 5b, 5c ... formed in the wall of the pipe 3 and each provided with sealing means.
  • the pipe 3 is formed for example by a straight or curved tube of circular section (Fig. 4) or by a curved tube of rectangular section (Fig. 5).
  • This tube can be made of wood, composite material or even metal.
  • the pipe 3 is composed, on the one hand, of two side walls 10a and 10b, the two selvedges 11 and 12 of which are straight or curved and which are produced by stacking wooden strips 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 edge of the edges 11 and 12 of said side walls 10a and 10b.
  • the means 4 for supplying pressurized fluid to the 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 orifice 21 and a discharge orifice 22.
  • connection between the suction opening 21 and the delivery opening 22 with the pipe 3 is made by means of two flexible sheaths 23 and 24 respectively.
  • the first flexible sheath 23 has its two ends connected to fixed flanges 25 and 26, one of which
  • the second flexible sheath 24 has one of its ends connected to a fixed flange 29 secured to the pipe 3 and the other of its ends connected to a movable flange 30 associated with operating means 31 allowing the sealed connection of the second flexible sheath 24, either with the flange 28 of the discharge port 22 for inflating the beams A, B, C ... and the deployment of the arch 1, or with the flange 26 of the free end of the first flexible sheath 23 for deflating the beams A, B, C ... and folding the canopy 1.
  • the sealing means are formed by watertight doors 40 associated with means 41 for controlling their opening or closing.
  • Each watertight door 40 includes at least one leaf 42 pivoting in the pipe 3 around a hinge 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 the corresponding orifice 5, the orientation of the pressurized fluid from this pipe 3 towards the corresponding inflatable beam A, B, C ... or of said corresponding inflatable beam A, B, C. .. towards the said pipe 3.
  • a closed position Fig. 6
  • Fig. 7 inclined opening position
  • the pipe 3 comprises two opposite orifices 5 provided with leaves 42 opening towards one another and comprising a tightening mechanism in the closed position of these leaves 42.
  • This tightening mechanism of the leaves 42 in position closure is composed of two rods 44 and 45 articulated together at one of their ends at a common point of articulation 46 and each articulated at their other end on each of the leaves 42 at a point of articulation 47.
  • the means 41 for controlling the opening or closing of the leaves 42 are formed for example by a jack whose free end of the jack rod 41a is connected to the rods 44 and 45 at their common point of articulation 46.
  • Each leaf 42 is formed of two elements 50 and 51 which can be dismantled with respect to one another and which are secured to each other by means of a plurality of screws 52 accessible from outside the pipe 3.
  • the first element 50 is perforated in its central part and carries, on the one hand, the joints 43 and 47 and, on the other hand, a seal 53 with the internal wall of the pipe 3 around the periphery of the orifice 5 of said pipe 3.
  • the separation of the second element 51 by relative to the first element 50 provides access to the interior of the pipe 3 for the maintenance of the means 41 for controlling the opening or closing of the leaves 42.
  • the second element 51 closes the central part of the first element 50 and ensures the continuity of the external wall of the pipe 3 in the closed position of the leaf 42, as shown in FIG. 6.
  • the adjoining walls 60 and 61 of the adjacent inflatable beams for example A and B are connected together in leaktight fashion around the pipe 3 corresponding with a plate 62 carrying the sliding means constituted by example by a roller 63 or by a shoe.
  • Each roller 63 is intended to roll on the external wall of the pipe 3 during the deployment or folding of the vault 1.
  • Each plate 62 provides a free space 64 with the corresponding pipe 3 allowing the inter ⁇ communication between the pressure chambers of the 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.
  • the free space 64 is permanently closed off by a seal 65 fixed on the plate 62 and rubbing against the external wall of the pipe 3 during the deployment or retraction of the vault 1 so as to isolate the pressure vessels of the adjacent inflatable beams, for example A and B.
  • the free space 64 is temporarily closable by an inflatable and foldable seal 66.
  • This seal 66 is fixed on the plate 62 inside which it is folded in
  • each wall of the adjacent inflatable beams for example A and B with the plates 62 is carried out using a flange 67a and 67b held captive in an annular hem 68a and 68b formed by inversion of the wall 60 and 61 corresponding.
  • the flanges 67a and 67b are fixed to 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 plates 62 comprises at at least part of the surface of at least one closable orifice 5d, 5c ....
  • the spacer 70 may carry a roller, not shown, for guiding on the corresponding pipe 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 adjoining walls 60 and 61 of the adjacent inflatable beams for example A and B are connected together along the space which extends between the plates 62 and along the space between a plate 62 and the ends of the inflatable beams, by at least one self-gripping strip 71.
  • This self-gripping strip 71 is composed of two parts 72 and 73 which can hang on to one another or come off from one another.
  • Each of these parts 72 and 73 is fixed for example by welding at least along its longitudinal edges 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 are connected 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 for the passage of the corresponding deployment path.
  • the orifices 5, 5a, 5c and 5d are closed by the corresponding leaves 42 and the orifice 5b is open.
  • the fan 3 operates in inflation and the beam A which is located opposite the open orifice 5b is inflated, then the beam B is inflated because it is initially in communication with the beam A and secondly, after the start of inflation opposite the open orifice 5b.
  • the orifice 5b is closed and the orifice 5c is opened so as to inflate the beams C and D and so on.
  • the orifice 5 is opened to pressurize the beams A and B or the orifice 5a to pressurize the beams C and D or the others holes to pressurize the corresponding beams.
  • all of the orifices 5, 5a, 5b, 5c ... are closed and the fan 4 operates in suction.
  • the opening 5d is first of all opened to deflate the beam N, then the beam M which communicates with the beam N.
  • the orifice 5d is closed and the orifice 5c is open to deflate the beam D, then the beam C.
  • the orifice 5c is closed and the orifice 5b is open to deflate the beams A and B in order to fold the whole of the arch.
  • sealing means of an orifice 5.
  • These sealing means are only used for the inflation of the beams A, B, C ... M, N, the deflection flage these beams being formed by another orifice 5 equipped with a sealed door 40 according to the first embodiment described above.
  • the closure means are, in this case, formed by non-return valves 74 actuated by the difference in the fluid pressures prevailing, on the one hand, in the pipe 3 and, on the other hand, in the said at least one inflatable beam A, B, C ... M, N.
  • Each non-return valve 74 comprises two associated membranes 75 and 76 made of flexible material.
  • the first membrane 75 closes the orifice 5 between the interior of the pipe 3 and the inflatable beam, for example A, and the second membrane 76 surrounds said orifice 5.
  • these two membranes 75 and 76 are arranged in a cavity 80 formed in the wall of the pipe 3 and protected by inspection doors 81 provided with orifices 82a and 82b which put this cavity 80 into communication with the interior of the corresponding inflatable beam for example A.
  • Fig. 12 there is shown, on the same pipe 3, two valves 74, one of which is in a closed position F and the other of which is in an open position G.
  • the pressure increases in the pipe 3 at a level higher than the pressure prevailing in this beam A and consequently in the cavity 80.
  • the membranes 75 and 76 move away from one another in the open position G by clearing the orifice 5 and allowing one or more opening 79 to appear in the or the portions of the periphery of the membranes 75 and 76 where they are not interconnected.
  • This flow of pressurized fluid then passes from the pipe 3 through the orifice 5, then between the membranes 75 and 76 through the opening 79 and through the orifices 82a and 82b towards the inflatable beam A.
  • the two membranes 75 and 76 are applied against one another in a sealed manner in the closed position F by flattening the opening (s) 79 and closing the orifice 5.
  • the free space 64 is temporarily closable by a seal 90 formed of three concentric parts. These three concentric parts are formed by a double annular membrane 91, an elastic lip 92 formed on one of the edges of the double membrane 91 and by at least one heel 93 for fixing on the plate 62 and formed on the other. edge of said double membrane 91.
  • This double annular membrane 91 internally cleans a space 94 connected to inflation means, not shown.
  • the elastic lip 92 is formed by an O-ring.
  • the seal 90 is made of elastic rubber of elastomer or plastomer reinforced by a sheet 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 90 is deformable between a first non-swollen state (Fig. 13) ensuring the seal between two beams
  • the internal space 94 of the double membrane 91 is connected to the inflation means by a pipe 96 and the pressure exerted by the elastic lip 92 on the pipe 3, when the seal 90 is in the inflated position, is adjusted by a 97 ring of the plate 62 and on which said seal bears in the deflated position.
  • the position of the ring 97 relative to the plate 62 is adjustable. This adjustment can possibly be obtained by shims of thickness 98.
  • one of the membranes of the double membrane 91 is disposed between two stiffening flanges, respectively 99a and 99b, and the gasket 90 is fixed on the plate 62, at the heels 93, by a fixing member 100.
  • the flange 99a disposed between thedesmembra ⁇ nes of the double membrane 91 comprises a conduit 101 opening into the internal space 94 and connected to the inflation means, not shown.
  • the configuration of the gasket 90, inflated and retracted or deflated and applied against the pipe 3 between each beam A, B, C ... M, N regulates the inflation or successive deflation of these beams by closing or opening the passage of intercommunication 64.
  • the corresponding gasket 90 is retracted successively by inflation, then it is deflated when the corres ⁇ ponding beam has been inflated to the desired pressure.
  • the pipe 3 for transporting the pressurized fluid is disposed in the middle of 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

Voûte gonflable déployable et escanotable La présente invention a pour objet une voûte gonflable, déployable et escamotable par gonflage et dégonflage respectivement. The present invention relates to an inflatable, deployable and retractable vault by inflating and deflating 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. Ce type de voûtes est conçu, entre autres, pourpermettre 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. On connaît plus particulièrement dans le FR-In general, these inflatable arches comprise a plurality of longitudinal beams arranged side by side, means for sliding at least one end of the beams along at least one deployment or folding path and means for supply of said beams with pressurized fluid. This type of vaults is designed, among other things, to allow its deployment by simple inflation, as well as its retraction by deflation, which allows at will to cover a space in order to protect it from bad weather and to discover it in good weather. We know more particularly in the 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.A-2 621 944 an inflatable arch in which each beam has two opposite panels forming the sole and each constituting one of the lobes of the inner and outer wall of the arch 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 respecti¬ vement.The means for supplying the beam with inflation fluid are formed by at least one conduit passing through said beams and being extensible in its length, its stretching and its retraction being controlled by the deployment and retraction of the vault respectively.
Dans cette voûte, le conduit d'alimentation est carmin 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 carmine to all the beams and communicates with each of said beams by a closable orifice controlled by shutter means and the supply duct sealingly passes through an opening arranged in each of the side panels .
Le chemin de déploiement est situé à l'exté- rieur des poutres, ce qui entraîne des contraintes réparties sur une zone réduite de la paroi.The deployment path is located outside laughing beams, which leads to stresses distributed over a reduced area of the wall.
On connaît 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.Also known in FR-A-2 677 394 is an inflatable arch comprising a plurality of longitudinal beams arranged side by side, means for sliding at least one end of the beams along at least one deployment path or folding and means for supplying the beams with inflation fluid.
Dans ce cas, le chemin de déploiement ou de repliage traverse de manière etanche lesdites poutres.In this case, the deployment or folding path crosses said beams in a sealed manner.
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 deployment or folding path extends longitudinally inside a conduit for supplying pressurized fluid and the sliding means 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. L'invention a pour but de proposer une voûte gonflable, déployable et escamotable qui permet d'éviter les inconvénients précédemment mentionnés.However, such a structure poses sealing problems and is complex due to the arrangement of the deployment or folding path inside the supply pipe for pressurized fluid. The object of the invention is to propose an inflatable, deployable and retractable vault which makes it possible to avoid the drawbacks mentioned above.
L'invention a donc pour objet une voûte gonflable, déployable et escamotable par gonflage et dégonflage respectivement, comportant :The subject of the invention is therefore an inflatable arch, deployable and retractable by inflation and deflation respectively, comprising:
- une pluralité de poutres gonflables, longitudinales et disposées côte à côte,- a plurality of inflatable beams, longitudinal and arranged side by side,
- 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 communi¬ quant, 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.- 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 pipe for transporting the fluid under pressure for inflating or deflating the beams communi¬ as, 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 inflatable beam by at least one orifice made in the wall of the pipe and provided with sealing means.
Selon d'autres caractéristiques de l'inven¬ tion :According to other features of the invention:
- la canalisation est formée par un tube de section circulaire ou de section rectangulaire,- the pipeline is formed by a tube of circular section or rectangular section,
- les moyens d'alimentation des poutres gonflables sont formés par au moins un générateur de fluide sous pression,the means for supplying the inflatable beams are formed by at least one generator of pressurized fluid,
- 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,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 connection means with a second flexible sheath connected to the pipe, and on the other hand, a discharge orifice comprising means of connection with the second flexible sheath intended to be connected alternately by said connection means with the discharge orifice to inflate the beams or with the free end of the first sheath flexible for deflating said beams, the sealing means are formed by watertight doors associated with means for controlling their opening or closing,
- 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 canalisa- tion un espace libre obturable momentanément par un joint d'étanchéité,each door comprises at least one leaf pivoting in the pipeline between a closed position ensuring the continuity of the external wall of said pipeline and an inclined opening position ensuring, through the orifices, the orientation of the fluid under pressure of 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 that can be temporarily closed off by a seal,
- 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.- 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 orifices closable.
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 :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:
- la Fig. 1 est une vue schématique en perspective d'une voûte gonflable selon l'invention,- Fig. 1 is a schematic perspective view of an inflatable vault according to the invention,
- la Fig. 2 est une vue schématique partielle en coupe d'une des extrémités des poutres gonflables en position escamotée,- Fig. 2 is a partial schematic view in section of one of the ends of the inflatable beams in the retracted position,
- 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 coulisse¬ ment des poutres gonflables,- 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 means for sliding the inflatable beams,
- la Fig. 5 est une vue en coupe transversale d'un second mode de réalisation des moyens de coulisse- ment des poutres gonflables,- Fig. 5 is a cross-sectional view of a second embodiment of the sliding means of the inflatable beams,
- 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,- 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 sectional view transverse and in the open position of the first embodiment of the means for closing the orifices of the pipe,
- 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,- 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,
- 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,- 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,
- la Fig. 10 est une vue schématique en coupe transversale de deux poutres gonflables contiguës,- Fig. 10 is a schematic cross-sectional view of two contiguous inflatable beams,
- la Fig. 11 est une vue schématique par- tielle en coupe d'une extrémité des poutres gonflables en position déployée,- Fig. 11 is a partial schematic view in section of one end of the inflatable beams in the deployed position,
- 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,- 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,
- la Fig. 14 est une vue schématique en coupe transversale du joint d'étanchéité de la Fig. 13, en position gonflée,- Fig. 14 is a schematic cross-sectional view of the seal of FIG. 13, in the inflated position,
- 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.- 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 schématique- ment 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 sealed and which are arranged side by side to form the arch 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 passes through 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 for 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.... Selonune variante, chaque poutre rigide peut être formée par une canalisation de transport du fluide sous pression.One of the rigid beams, such as for example the rigid beam 2, is formed by a pipe 3 for transporting a pressurized fluid for the inflation or deflation of the beams A, B, C ... According to a variant, each rigid beam can be formed by a pipe for transporting the pressurized fluid.
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 pressurized fluid for inflating or deflating the beams A, B, C ... communicates, on the one hand, at at least one of its ends with means 4 for supplying pressurized fluid (Fig. 1) and, on the other hand, with the interior of at least one inflatable beam A, B, C ... through at least one orifice 5, 5a, 5b, 5c ... formed in the wall of the pipe 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) . Ce tube peut être réalisé en bois, en matériau composite ou encore en métal.The pipe 3 is formed for example by a straight or curved tube of circular section (Fig. 4) or by a curved tube of rectangular section (Fig. 5). This tube can be made of wood, composite material or even 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. 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.According to an exemplary embodiment shown in Figs. 4 and 5, the pipe 3 is composed, on the one hand, of two side walls 10a and 10b, the two selvedges 11 and 12 of which are straight or curved and which are produced by stacking wooden strips 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 edge of the edges 11 and 12 of said side walls 10a and 10b. The means 4 for supplying pressurized fluid to the 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'aspira¬ tion 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 orifice 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 delivery opening 22 with the pipe 3 is made by means of two flexible sheaths 23 and 24 respectively.
La première gaine souple 23 a ses deux extrémités reliées à des brides fixes 25 et 26 dont l'uneThe first flexible sheath 23 has its two ends connected to fixed flanges 25 and 26, one of which
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 28.25 is fixed to the suction port 21 and the other 26 of which is carried by a plate 27 mounted on the discharge port 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 refoule¬ ment 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 pipe 3 and the other of its ends connected to a movable flange 30 associated with operating means 31 allowing the sealed connection of the second flexible sheath 24, either with the flange 28 of the discharge port 22 for inflating the beams A, B, C ... and the deployment of the arch 1, or with the flange 26 of the free end of the first flexible sheath 23 for deflating the beams A, B, C ... and folding the canopy 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 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. 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'ouver- ture (Fig. 7) assurant, au travers de l'orifice 5 correspondant, l'orientation du fluide sous pression de cette canalisation 3 vers la poutre gonflable corres¬ pondante A, B, C... ou de ladite poutre gonflable correspondante A, B, C... vers la dite canalisation 3. Selon l'exemple de réalisation représenté auxThe sealing means are formed by watertight doors 40 associated with means 41 for controlling their opening or closing. Each watertight door 40 includes at least one leaf 42 pivoting in the pipe 3 around a hinge 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 the corresponding orifice 5, the orientation of the pressurized fluid from this pipe 3 towards the corresponding inflatable beam A, B, C ... or of said corresponding inflatable beam A, B, C. .. towards the said pipe 3. According to the embodiment shown in
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. 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.Figs. 6 and 7, the pipe 3 comprises two opposite orifices 5 provided with leaves 42 opening towards one another and comprising a tightening mechanism in the closed position of these leaves 42. This tightening mechanism of the leaves 42 in position closure is composed of two rods 44 and 45 articulated together at one of their ends at a common point of articulation 46 and each articulated 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 closing of the leaves 42 are formed for example by a jack whose free end of the jack rod 41a is connected to the rods 44 and 45 at their common point of articulation 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. 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 1'orifice 5 de ladite canalisation 3. La séparation du second élément 51 par rapport au premier élément 50 permet d'accéder à l'inté¬ rieur de la canalisation 3 pour la maintenance des moyens 41 de commande de l'ouverture ou de la fermeture des vantaux 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. 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 correspon¬ dante à l'aide d'une platine 62 portant les moyens de coulissement constitués par exemple par un galet 63 ou par un patin.Each leaf 42 is formed of two elements 50 and 51 which can be dismantled with respect to one another and which are secured to each other by means of a plurality of screws 52 accessible from outside the pipe 3. The first element 50 is perforated in its central part and carries, on the one hand, the joints 43 and 47 and, on the other hand, a seal 53 with the internal wall of the pipe 3 around the periphery of the orifice 5 of said pipe 3. The separation of the second element 51 by relative to the first element 50 provides access to the interior of the pipe 3 for the maintenance of the means 41 for controlling the opening or closing of the leaves 42. The second element 51 closes the central part of the first element 50 and ensures the continuity of the external wall of the pipe 3 in the closed position of the leaf 42, as shown in FIG. 6. As shown in Figs. 8 and 9, the adjoining walls 60 and 61 of the adjacent inflatable beams, for example A and B are connected together in leaktight fashion around the pipe 3 corresponding with a plate 62 carrying the sliding means constituted by example by a roller 63 or by a shoe.
Chaque galet 63 est destiné à rouler sur la paroi externe de la canalisation 3 au cours du déploie¬ ment ou du repliage de la voûte 1.Each roller 63 is intended to roll on the external wall of the pipe 3 during the deployment or folding of the vault 1.
Chaque platine 62 ménage un espace libre 64 avec la canalisation correspondante 3 permettant l'inter¬ communication entre les enceintes sous pression des poutres gonflables adjacentes par exemple A et B.Each plate 62 provides a free space 64 with the corresponding pipe 3 allowing the inter¬ communication between the pressure chambers of the 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 encein¬ tes sous pression des poutres gonflables adjacentes par exemple A et B.As shown in Fig. 8, the free space 64 is permanently closed off by a seal 65 fixed on the plate 62 and rubbing against the external wall of the pipe 3 during the deployment or retraction of the vault 1 so as to isolate the pressure vessels of the adjacent inflatable beams, for 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. Ce joint d'étanchéité 66 est fixé sur la platine 62 à l'intérieur de laquelle il est replié enAs shown in Fig. 9, the free space 64 is temporarily closable by an inflatable and foldable seal 66. This seal 66 is fixed on the plate 62 inside which it is folded in
1'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.The absence of pressurization and it deploys under the effect of its internal pressurization to come to be applied in a sealed manner 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, the watertight stowage of each wall of the adjacent inflatable beams, for example A and B with the plates 62 is carried out using a flange 67a and 67b held captive in an annular hem 68a and 68b formed by inversion of the wall 60 and 61 corresponding.
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 to the plate 62 by means of a plurality of bolts 69.
Comme cela apparaît 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 plates 62 comprises at at least part 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 may carry a roller, not shown, for guiding on the corresponding pipe 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 yet 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-agrip- pante 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.As shown in Fig. 10, the adjoining walls 60 and 61 of the adjacent inflatable beams, for example A and B are connected together along the space which extends between the plates 62 and along the space between a plate 62 and the ends of the inflatable beams, by at least one self-gripping strip 71. This self-gripping strip 71 is composed of two parts 72 and 73 which can hang on to one another or come off from one another.
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 for example by welding at least along its longitudinal edges 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 adjacen- tes 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. En se reportant maintenant aux figures et notamment aux figures 2 et 11, on va décrire le fonction¬ nement de la voûte gonflable 1 selon l'invention.According to another embodiment, the adjoining walls 60 and 61 of the adjacent inflatable beams, for example A and B, are connected 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 for the passage of the corresponding deployment path. Referring now to the figures and in particular to Figures 2 and 11, we will describe the operation of the inflatable vault 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 orifices 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.The fan 3 operates in inflation and the beam A which is located opposite the open orifice 5b is inflated, then the beam B is inflated because it is initially in communication with the beam A and secondly, after the start of inflation opposite the open orifice 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. 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. 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.Then, the orifice 5b is closed and the orifice 5c is opened so as to inflate the beams C and D and so on. In the event of a drop in pressure due to various leaks or to complete the pressurization in the beams after deployment, the orifice 5 is opened to pressurize the beams A and B or the orifice 5a to pressurize the beams C and D or the others holes to pressurize the corresponding beams. At the time of the retraction of the roof 1, all of the orifices 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 opening 5d is first of all opened to deflate the beam N, then the beam M which communicates with the beam N.
L'orifice 5d est fermé et l'orifice 5c est ouvert pour dégonfler la poutre D, puis la poutre C.The orifice 5d is closed and the orifice 5c is open to deflate the beam D, then the 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 orifice 5c is closed and the orifice 5b is open to deflate the beams A and B in order to fold the whole of the 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. Ces moyens d'obturation ne sont utilisés que pour le gonflage des poutres A, B, C...M, N, le dégon¬ flage de ces poutres étant réalisé par un autre orifice 5 équipé d'une porte étanche 40 selon le premier mode de réalisation décrit précédemment. 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. Chaque clapet anti-retour 74 comporte deux membranes associées 75 et 76 en matériau souple.Referring now to FIG. 12, we will describe a second embodiment of the sealing means of an orifice 5. These sealing means are only used for the inflation of the beams A, B, C ... M, N, the deflection flage these beams being formed by another orifice 5 equipped with a sealed door 40 according to the first embodiment described above. The closure means are, in this case, formed by non-return valves 74 actuated by the difference in the fluid pressures prevailing, on the one hand, in the pipe 3 and, on the other hand, in the said at least one inflatable beam A, B, C ... M, N. Each non-return valve 74 comprises two associated membranes 75 and 76 made 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 interior of the pipe 3 and the inflatable beam, 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 interconnected over 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. 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.For example, they are interconnected in the portions 77a and 77b and they are not interconnected in the portion 78. Advantageously, these two membranes 75 and 76 are arranged in a cavity 80 formed in the wall of the pipe 3 and protected by inspection doors 81 provided with orifices 82a and 82b which put this cavity 80 into communication 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 there is shown, on the same pipe 3, two valves 74, one of which is in a closed position F and the other of which is in an 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 croît dans la canalisation 3 à un niveau supérieur à la pression régnant dans cette poutre A et par suite dans la cavité 80.When the inflatable beam A is pressurized from the pressurized fluid generator 4 operating in inflation, the pressure increases in the pipe 3 at a level higher than the pressure prevailing in this beam A and consequently in the 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 apparaître 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, the membranes 75 and 76 move away from one another in the open position G by clearing the orifice 5 and allowing one or more opening 79 to appear in the or the portions 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 flow of pressurized fluid then passes from the pipe 3 through the orifice 5, then between the membranes 75 and 76 through the opening 79 and through the orifices 82a and 82b towards 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 canalisa¬ tion 3.When the pressurized fluid generator 4 is stopped, the pressure drops in the pipe 3 and the pressure then prevailing in the inflatable beam A becomes greater than that prevailing in said pipe 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 ouvertu- res 79 et en obturant l'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. Ces trois parties concentriques sont consti¬ tuées 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.In this case, the two membranes 75 and 76 are applied against one another in a sealed manner in the closed position F by flattening the opening (s) 79 and closing the orifice 5. According to a variant shown in Figs. 13 to 15, the free space 64 is temporarily closable by a seal 90 formed of three concentric parts. These three concentric parts are formed by a double annular membrane 91, an elastic lip 92 formed on one of the edges of the double membrane 91 and by at least one heel 93 for fixing on the 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 gonfla¬ ge, non représentés.This double annular membrane 91 internally cleans 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 an 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 sheet 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 deuxpoutresThe double annular membrane 91 of the seal 90 is deformable between a first non-swollen state (Fig. 13) ensuring the seal between two beams
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,A, B, C ... M, N adjacent by elastic tightening of the lip 92 on the pipe 3 and a second inflated state (Fig. 14) providing a passage between the two beams A,
B, C...M, N adjacentes. Selon un premier mode de réalisation repré¬ senté 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. Selon un second mode de réalisation repré¬ senté à la Fig. 15, l'une des membranes de la double membrane 91 est disposée entre deux flasques de rigidifi- cation, respectivement 99a et 99b, et le joint d'étan¬ chéité 90 est fixé sur la platine 62, au niveau des talons 93, par un organe de fixation 100.B, C ... M, N adjacent. 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 pipe 96 and the pressure exerted by the elastic lip 92 on the pipe 3, when the seal 90 is in the inflated position, is adjusted by a 97 ring of the plate 62 and on which said seal bears in the deflated position. The position of the ring 97 relative to the plate 62 is adjustable. This adjustment can possibly be obtained by shims of thickness 98. According to a second embodiment shown in FIG. 15, one of the membranes of the double membrane 91 is disposed between two stiffening flanges, respectively 99a and 99b, and the gasket 90 is fixed on the plate 62, at the heels 93, by a fixing member 100.
Le flasque 99a disposé entre les deuxmembra¬ nes de la double membrane 91 comporte un conduit 101 débouchant dans l'espace interne 94 et relié aux moyens de gonflage, non représentés. 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 corres¬ pondante a été gonflée à la pression désirée.The flange 99a disposed between the deuxmembra¬ nes of the double membrane 91 comprises a conduit 101 opening into the internal space 94 and connected to the inflation means, not shown. The configuration of the gasket 90, inflated and retracted or deflated and applied against the pipe 3 between each beam A, B, C ... M, N regulates the inflation or successive deflation of these beams by closing or opening the passage of intercommunication 64. For the successive inflation of said beams A, B, C ... M, N, the corresponding gasket 90 is retracted successively by inflation, then it is deflated when the corres¬ ponding 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 the beams A, B, C ... M, N is ensured by the seals 90 which, in deflated state, are applied, thanks to their shape and structure, to the pipe 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 pipe 3 for transporting the pressurized fluid is disposed in the middle of said beams A, B, C ... M, N.

Claims

REVENDICATIONS
1. Voûte gonflable, déployable et escamotable par gonflage et dégonflage respectivement, comportant :1. Inflatable arch, deployable and retractable by inflation and deflation respectively, comprising:
- une pluralité de poutres gonflables A, B, C...M, N longitudinales et disposées côte à côte,- a plurality of inflatable beams A, B, C ... M, N longitudinal and arranged side by side,
- des moyens (4) d'alimentation des poutres gonflables A, B, C.. M, N en fluide sous pression,- means (4) for supplying inflatable beams A, B, C .. M, N with pressurized fluid,
- des moyens de coulissement des poutres A, B, C...M, N le long d'au moins un chemin (2, 2a) 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 (3) de transport du fluide sous pression pour le gonflage ou le dégonflage des poutres A, B, C...M, N communiquant, d'une part, à au moins une de ses extrémités avec les moyens (4) d'alimentation en fluide sous pression et, d'autre part, avec l'intérieur d'au moins une poutre gonflable A, B, C...M, N par au moins un orifice (5, 5a, 5b, 5c, 5d) ménagé dans la paroi de la canalisation (3) et muni de moyens (40) d'obturation.- means for sliding the beams A, B, C ... M, N along at least one path (2, 2a) for deployment or folding formed by a rigid beam sealingly passing through these beams, characterized in that the rigid beam is formed by a pipe (3) for transporting the pressurized fluid for inflating or deflating the beams A, B, C ... M, N communicating, on the one hand, with at least one of its ends with the means (4) for supplying pressurized fluid and, on the other hand, with the interior of at least one inflatable beam A, B, C ... M, N by at least one orifice ( 5, 5a, 5b, 5c, 5d) formed in the wall of the pipe (3) and provided with means (40) for closing.
2. Voûte gonflable selon la revendication 1, caractérisée en ce que la canalisation (3) est formée, par un tube de section circulaire.2. Inflatable arch according to claim 1, characterized in that the pipe (3) is formed by a tube of circular section.
3. Voûte gonflable selon la revendication 1, caractérisée en ce que la canalisation (3) est formée par un tube de section rectangulaire.3. Inflatable vault according to claim 1, characterized in that the pipe (3) is formed by a tube of rectangular section.
4. Voûte gonflable selon là revendication 1, caractérisée en ce que les moyens d'alimentation des poutres gonflables A, B, C...M, N sont formés par au moins un générateur (4) de fluide sous pression.4. Inflatable arch according to claim 1, characterized in that the means for supplying the inflatable beams A, B, C ... M, N are formed by at least one generator (4) of pressurized fluid.
5. Voûte gonflable selon l'une des revendica¬ tions 1 à 4, caractérisée en ce que le générateur (4) de fluide sous pression est un ventilateur centrifuge comportant, d'une part, un orifice (21) d'aspiration muni d'une première gaine souple (23) dont l'extrémité libre comporte des moyens (26) de connexion avec une seconde gaine souple (24) reliée à la canalisation (3) et, d'autre part, un orifice de refoulement (22) comportant des moyens (28) de connexion avec la seconde gaine souple (24) destinée à être reliée alternativement par des moyens de connexion avec l'orifice de refoulement (22) pour gonfler les poutres A, B, C...M, N ou avec l'extré¬ mité libre de la première gaine souple (23) pour dégon¬ fler lesdites poutres. 5. Inflatable vault according to one of claims 1 to 4, characterized in that the generator (4) of pressurized fluid is a centrifugal fan comprising, on the one hand, a suction orifice (21) provided with '' a first flexible sheath (23) whose free end comprises means (26) for connection with a second flexible sheath (24) connected to the pipe (3) and, on the other hand, a discharge orifice (22) comprising means (28) for connection with the second flexible sheath (24) intended to be connected alternately by means of connection with the discharge orifice (22) for inflating the beams A, B, C ... M, N or with the free end of the first flexible sheath (23) for deflating said beams.
6. Voûte gonflable selon la revendication 1, caractérisée en ce que les moyens d'obturation sont formés par des portes étanches (40) associées à des moyens (41, 41a) de commande de leur ouverture ou de leur fermeture. 6. Inflatable vault according to claim 1, characterized in that the closure means are formed by watertight doors (40) associated with means (41, 41a) for controlling their opening or closing.
7. Voûte gonflable selon la revendication 6, caractérisée en ce que chaque porte (40) comporte au moins un vantail (42) pivotant dans la canalisation (3) entre une position de fermeture assurant la continuité de la paroi externe de ladite canalisation (3) et une position inclinée d'ouverture assurant, au travers des orifices (5, 5a, 5b, 5c, 5d) , l'orientation du fluide sous pression de cette canalisation (3) vers ladite au moins une poutre gonflable A, B, C...M, N ou de ladite au moins poutre gonflable A, B, C...M, N vers ladite canalisation (3) .7. Inflatable arch according to claim 6, characterized in that each door (40) comprises at least one leaf (42) pivoting in the pipe (3) between a closed position ensuring the continuity of the external wall of said pipe (3 ) and an inclined opening position ensuring, through the orifices (5, 5a, 5b, 5c, 5d), the orientation of the fluid under pressure from this pipe (3) towards said at least one inflatable beam A, B, C ... M, N or of said at least inflatable beam A, B, C ... M, N to said pipe (3).
8. Voûte gonflable selon les revendications 1, 6 et 7, caractérisée en ce que la canalisation (3) comprend au moins deux orifices opposés (5, 5a, 5b, 5c, 5d) munis de vantaux (42) s'ouvrant l'un vers l'autre et comportant un mécanisme de serrage en position de fermeture composé de deux biellettes (44, 45) articulées entres elles à une de leurs extrémités et articulées chacune à leur autre extrémité sur chacun desdits vantaux8. Inflatable arch according to claims 1, 6 and 7, characterized in that the pipe (3) comprises at least two opposite orifices (5, 5a, 5b, 5c, 5d) provided with leaves (42) opening the towards each other and comprising a tightening mechanism in the closed position composed of two rods (44, 45) hinged together at one of their ends and each hinged at their other end on each of said leaves
(42) , lesdits moyens de commande de l'ouverture ou de la fermeture des vantaux (42) étant reliés aux biellettes (44, 45) en leur point commun (46) d'articulation.(42), said means for controlling the opening or closing of the leaves (42) being connected to the connecting rods (44, 45) at their common point (46) of articulation.
9. Voûte gonflable selon la revendication 1, caractérisée en ce que les moyens d'obturation sont formés par des clapets anti-retour (74) actionnés par la différence des pressions de fluide régnant, d'une part, dans ladite canalisation (3) et, d'autre part, dans ladite au moins une poutre gonflable A, B, C, ...M, N.9. Inflatable vault according to claim 1, characterized in that the closure means are formed by non-return valves (74) actuated by the difference of the fluid pressures prevailing, on the one hand, in said pipe (3) and, on the other hand, in said at least one inflatable beam A, B, C, ... M, N.
10. Voûte gonflable selon la revendication 9, caractérisée en ce que chaque clapet anti-retour (74) comporte au moins une première membrane (75) obturant l'orifice (5) correspondant et coopérant avec une seconde membrane (76) entourant ledit orifice (5) et reliée sur une portion de sa périphérie avec la première membrane10. Inflatable vault according to claim 9, characterized in that each non-return valve (74) comprises at least a first membrane (75) closing the orifice (5) corresponding and cooperating with a second membrane (76) surrounding said orifice (5) and connected over a portion of its periphery with the first membrane
(75) , lesdites première et seconde membranes (75, 76) étant déplaçables, par la différence des pressions de fluide, entre une position d'obturation de l'orifice (5) correspondant dans laquelle les membranes (75, 76) sont appliquées l'une sur l'autre de façon étanche et une position d'ouverture dudit orifice (5) dans laquelle les membranes (75, 76) sont écartées l'une de l'autre et ménagent entre elles au moins une ouverture (79) de passage du fluide.(75), said first and second membranes (75, 76) being displaceable, by the difference in fluid pressures, between a position in which the corresponding orifice (5) is closed in which the membranes (75, 76) are applied one on the other in a sealed manner and an open position of said orifice (5) in which the membranes (75, 76) are spaced from each other and form between them at least one opening (79) fluid passage.
11. Voûte gonflable selon l'une des revendi¬ cations 1 à 5, caractérisée en ce que les parois conti- guës (60, 61) des poutres gonflables A, B, C...M, N adjacentes sont reliées entres elles de manière étanche autour d'aumoins une canalisation (3) correspondante par une platine (62) portant les moyens (63) de coulissement et ménageant avec ladite au moins une canalisation (3) un espace libre (64) obturable par un joint d'étanchéité (65, 66, 90) .11. Inflatable arch according to one of claims 1 to 5, characterized in that the adjoining walls (60, 61) of the inflatable beams A, B, C ... M, N are adjacent to each other by sealingly around at least one corresponding pipe (3) by a plate (62) carrying the sliding means (63) and providing with said at least one pipe (3) a free space (64) closable by a seal (65, 66, 90).
12. Voûte gonflable selon la revendication 11, caractérisée en ce que le joint d'étanchéité (65) est porté par la platine (62) correspondante et frotte sur la paroi externe de la canalisation (3) au cours du déploiement ou de l'escamotage de la voûte (1) .12. Inflatable vault according to claim 11, characterized in that the seal (65) is carried by the corresponding plate (62) and rubs against the external wall of the pipe (3) during the deployment or retraction of the vault (1).
13. Voûte gonflable selon la revendication 11 ou 12, caractérisée en ce que le joint d'étanchéité (66) est constitué par un joint gonflable. 13. Inflatable vault according to claim 11 or 12, characterized in that the seal (66) is constituted by an inflatable seal.
14. Voûte gonflable selon la revendication14. Inflatable arch according to claim
11, caractérisée en ce que le joint d'étanchéité (90) est formé par une double membrane annulaire (91) comportant, sur l'un de ses bords, une lèvre élastique (92) et sur l'autre des ses bords au moins un talon (93) de fixation sur la platine (62) , ladite double membrane annulaire11, characterized in that the seal (90) is formed by a double annular membrane (91) comprising, on one of its edges, an elastic lip (92) and on the other of its edges at least a heel (93) for fixing to the plate (62), said double annular membrane
(91) ménageant intérieurement un espace (94) relié à des moyens de gonflage et étant deformable entre un premier état non gonflé assurant l'étanchéité entre deux poutres(91) internally providing a space (94) connected to inflation means and being deformable between a first non-inflated state ensuring the seal between two beams
A, B, C...M, N adjacentes par serrage élastique de la lèvre (92) sur la canalisation (3) et un second état gonflé ménageant un passage entre les deux poutres A, B, C...M, N adjacentes.A, B, C ... M, N adjacent by elastic tightening of the lip (92) on the pipe (3) and a second inflated state providing a passage between the two beams A, B, C ... M, N adjacent.
15. Voûte gonflable selon la revendication 14, caractérisée en ce que la lèvre élastique (92) est formée par un anneau torique.15. Inflatable arch according to claim 14, characterized in that the elastic lip (92) is formed by an O-ring.
16. Voûte gonflable selon les revendications 14 et 15, caractérisée en ce que le joint d'étanchéité16. Inflatable vault according to claims 14 and 15, characterized in that the seal
(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(90) is made of elastic rubber of elastomer or plastomer reinforced by a sheet of cables (95) arranged radially and extending continuously in said heel (93) and the double annular membrane
(91) .(91).
17. Voûte gonflable selon la revendication 11 ou 14, caractérisée en ce que les platines (62) adjacen- tes sont maintenues écartées l'une de l'autre par au moins une entretoise (70) , d'une distance telle que la longueur de la canalisation (3) entre lesdites platines17. Inflatable arch according to claim 11 or 14, characterized in that the adjacent plates (62) are kept apart from one another by at least one spacer (70), by a distance such that the length of the pipe (3) between said plates
(62) adjacentes comporte au moins une partie de la surface d'au moins un desdits orifices obturables (5, 5a, 5b, 5c, 5d) . (62) adjacent comprises at least a portion of the surface of at least one of said closable orifices (5, 5a, 5b, 5c, 5d).
18. Voûte gonflable selon la revendication 17, caractérisée en ce que l'entretoise (70) est fixée à la fois sur les platines adjacentes (62) de la première poutre A, la longueur de cette entretoise (70) correspon- dant à l'écartement de ces platines (62) lorsque la première poutre A est gonflée.18. Inflatable vault according to claim 17, characterized in that the spacer (70) is fixed at the same time on the adjacent plates (62) of the first beam A, the length of this spacer (70) corresponding to the 'spacing of these plates (62) when the first beam A is inflated.
19. Voûte gonflable selon l'une des revendi¬ cations précédentes, caractérisée en ce que les parois contiguës (60, 61) des poutres gonflables A, B, C...M, N adjacentes sont reliées entres elles par au moins une bande auto-agrippante (71) .19. Inflatable vault according to one of the preceding claims, characterized in that the adjoining walls (60, 61) of the adjacent inflatable beams A, B, C ... M, N are interconnected by at least one strip hook-and-loop (71).
20. Voûte gonflable selon l'une des revendi¬ cations précédentes, caractérisée en ce que la canalisation (3) de transport du fluide sous pression est disposée au milieu desdites poutres A, B, C...M, N. 20. Inflatable arch according to one of the preceding revendi¬ cations, characterized in that the pipe (3) for transporting the pressurized fluid is disposed in the middle 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)

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

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EP (1) EP0828910B1 (en)
JP (1) JPH11505909A (en)
CN (1) CN1186533A (en)
AT (1) ATE179481T1 (en)
AU (1) AU701084B2 (en)
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FR2761707B1 (en) 1997-04-02 1999-06-04 Scebep Spironef INFLATABLE, DEPLOYABLE AND RETRACTABLE
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FR2810062B1 (en) * 2000-06-08 2003-12-05 Joseph Mercurio GREENHOUSE HORTICLED DEBACHABLE
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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
EP0828910B1 (en) 1999-04-28
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
JPH11505909A (en) 1999-05-25
NO309159B1 (en) 2000-12-18

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