EP0517559B1 - Inflatable deployable and retractable vaulted structure - Google Patents

Inflatable deployable and retractable vaulted structure Download PDF

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Publication number
EP0517559B1
EP0517559B1 EP92401324A EP92401324A EP0517559B1 EP 0517559 B1 EP0517559 B1 EP 0517559B1 EP 92401324 A EP92401324 A EP 92401324A EP 92401324 A EP92401324 A EP 92401324A EP 0517559 B1 EP0517559 B1 EP 0517559B1
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EP
European Patent Office
Prior art keywords
beams
deployment
track
vaulted structure
structure according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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EP92401324A
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German (de)
French (fr)
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EP0517559A1 (en
Inventor
Guy Robert Delamare
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Sa Spironef Technologies
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CIVILE D'EXPLOITATION DES BREVETS ET PROCEDES SPIRONEF Ste
Civile D'exploitation Des Brevets Et Procedes Spironef Ste
SCEBEP SPIRONEF
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    • 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
    • E04H3/00—Buildings or groups of buildings for public or similar purposes; Institutions, e.g. infirmaries or prisons
    • E04H3/10—Buildings or groups of buildings for public or similar purposes; Institutions, e.g. infirmaries or prisons for meetings, entertainments, or sports
    • E04H3/14—Gymnasiums; Other sporting buildings
    • E04H3/16—Gymnasiums; Other sporting buildings for swimming
    • E04H3/165—Gymnasiums; Other sporting buildings for swimming having movable parts
    • 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 inflatable vaults with double multi-lobed wall, deployable and retractable by inflation and deflation respectively.
  • the inflatable arches comprise a plurality of longitudinal beams arranged side by side, means for sliding at least one longitudinal end of the beams along at least one deployment or folding path and means for supply of said beams with inflation fluid.
  • each beam has two opposite panels forming flanges and each constituting one of the lobes of the interior or exterior wall. of the vault and two side panels forming webs of the beam.
  • the means for supplying the beams 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 common to all the beams and communicates with each of said beams by a closable orifice controlled by shutter means and the supply duct passes in leaktight manner through an opening arranged in each of the side panels .
  • the present invention aims to provide an inflatable arch whose deployment or folding is facilitated.
  • FIG. 1 there is shown an inflatable arch 2 consisting of several inflatable beams A, B, C ... M, N watertight which are arranged side by side to form the arch.
  • Part of the beams is shown in the inflated state.
  • said beams are slidably mounted along a path 8a, 8b for deployment or folding which passes through the flexible walls of the beams as will be described later.
  • the paths 8a, 8b for deployment or folding are made in the form of a circular section tube, bent and fixed in the ground so that during inflation, the beams A, B, C ... partially or totally for example a swimming pool 10.
  • the part of the path 8a shown being of relatively small longitudinal dimension opposite the length of the path 8a, said part shown is substantially rectilinear, of axis X-X.
  • FIG. 2 schematically represents a longitudinal end partially in section of a beam B arranged between a beam A and a similar beam C.
  • Each beam A, B, C ... consists of at least one panel including a part 14a, 14b, 14c ... forming flanges and a part 18a, 20b, 18b, 20c ... forming the webs of said beams.
  • the parts 18a, 20b and 18b, 20c ... are intended to be located side by side to form a partition wall for the beams A, B, C ...
  • the panels of two adjacent beams are fixed to a plate 52 using two profiles 22 in which the ends of each panel are held.
  • the profiles 22 are fixed to the plate 52 using connecting means 24 ( Figure 3).
  • a circular opening 26 of axis X-X is pierced in the parts 18a, 20b, 18b, 20c ... of the panels of the adjacent beams.
  • the structure 28 extends radially from the edges of the openings of the parts 18a, 20b and is tightly connected to the edge of these openings.
  • the structure 28 is extended by spokes 30 extending towards the path 8a.
  • the spokes 30 support, by means of a ring 31, pads 32 in contact with the path 8a in order to be able to slide along the latter.
  • the hollow structure 28 comprises a first plate 34 and a second plate 36, the outside diameter of the first plate 34 being greater than the outside diameter of the second plate 36.
  • an outer ferrule 38 directed towards the second plate 36 and extending axially beyond the latter, thus delimiting a passage 39 between the plate 36 and its internally radial face.
  • An internal ferrule 40 is disposed at the externally radial periphery of the second plate 36, so as to extend towards the exterior of the hollow structure 28 to form with the external ferrule 38 a communication conduit between the passage 39 of the structure hollow 28 and beam A.
  • the inner ferrule 40 is fixed to the second plate 36 by means of a support 42.
  • the inner ferrule 40 has on its face located opposite the outer ferrule 38 an inflatable bladder 44.
  • the bladder 44 has an inflation orifice connected to a flexible pipe 47 passing through the inner shell 40 and the second plate 36 to then extend inside the structure 28 to inflation means, not shown, of the bladder 44.
  • an extendable wall 46 extends between two successive structures 28.
  • connection between the extensible wall 46 and each of the structures 28 is ensured in a leaktight manner using fixing means 48 which are fixed on the external face of each of the plates 34, 36, near the internally radial periphery of these past.
  • the extendable wall 46 defines a supply conduit 50 for inflating fluid of the beams A, B, C ..., this supply conduit surrounding the path 8a.
  • the structure 28 having its internally radial end open, puts the supply duct 50 in communication, for example with the beam A, via the annular passage 39 which can be closed off by the bladder 44.
  • the plate 52 extends radially outward from the structure 28 along the periphery of the outer shell 38.
  • a rigid perforated ring 56 is arranged between the path 8a and the extensible wall 46.
  • the diameter of the rigid ring 56 is greater than the diameter of the internally radial periphery plates 34 and 36, so that when the wall 46 is in its extended state, it has the form of a bellows arranged between two structures 28 and ensuring the continuity of the supply conduit 50.
  • the rigid ring 56 is slidably mounted on the path 8a for deployment or folding.
  • the supply conduit 50 has a first end which is connected to means for supplying inflation fluid to the beams A, B, C ...
  • the second end of the conduit 50 is closed.
  • the panel 20n of the end beam has an annular structure 29 extending between the edge of said panel 20n and the path 8a.
  • This annular structure 29 comprises, on its internally radial periphery, on the one hand, an annular shoe 33 surrounding the path 8a with a relatively small clearance to allow its sliding with a low air leak compensated by the flow of the inflation means and , on the other hand, an inflatable seal 35 which ensures perfect sealing between the annular structure 29 and the path 8a when the arch 2 is deployed and the inflation means stopped, to prevent any loss of pressure of the corresponding beam, and therefore of the entire vault 2.
  • each beam is equipped with a structure similar to that of FIG. 5 and each beam can be independently connected to means for supplying inflation fluid.
  • pressurized air is sent into the channel 50 through its first open end.
  • the bladder 44 of the end beam N furthest from the inflation means is deflated and the bladders 44 of the other beams are inflated.
  • the pressurized air entering the conduit 50 passes through the various annular structures 28 and enters through the passage 39 in the last beam N which inflates.
  • the associated bladder 44 When the pressure in the last beam N reaches a predetermined level, the associated bladder 44 is inflated so as to seal said last beam N.
  • the corresponding bladder 44 is deflated from the penultimate beam M and the air supplied by the inflation fluid supply means then enters said penultimate beam M which in turn deploys and causes the sliding of the associated hollow structure 28, of the radius 30 and of the associated shoe 32, along a first part of the path 8a.
  • the joint 35 of the end beam N of the vault is inflated to seal it with the path 8a.
  • the bladders 44 are deflated successively so as to put the different beams into communication with the supply duct 50.
  • the air contained in the various beams is then sucked through the supply conduit 50, causing the reverse sliding and the folding of the vault.
  • FIG 6 there is shown a vault according to the invention consisting of two half-vaults 2a, 2b, one of which is shown deployed and the other folded.
  • the vault comprises two paths 8a, 8b for deployment or folding, the ends of which are fixed on mobile boxes 70, 72 arranged in parallel.
  • the boxes 70, 72 have a rear axle provided with a wheel train 74 and stabilizing legs 78 located at the bottom corner of the boxes.
  • Each box has a hitch, not shown, so that it can be towed by a road tractor 76.
  • the boxes are ballasted, for example using a pipe 80 for filling with water or sand.
  • each box is inclined relative to the vertical in such a way that the boxes being in position, the lower edges 84 of each face 82 are less distant from each other than the upper edges 86 of each face 82.
  • the half-arches 2a, 2b rest on the faces 82.
  • the boxes 70, 72 also each include an inflation device 88 of the roof (only one of which is shown in FIG. 6) which is connected to the supply duct of the associated half-roof.
  • each path 8a or 8b is composed of two end sections 90a or 90b respectively, one of which is fixed on the box 70 and the other on the box 72, only the sections 90a and 90b fixed on the box 72 being visible in FIG. 6.
  • Each path 8a, 8b also includes a central section 92a, 92b which can be dismantled when the two half-arches 2a, 2b are folded. In such a state, the end sections 90a, 90b have a length greater than the thickness of a folded half-vault.
  • FIG. 7 to 10 which is shown a vault according to the invention, intended to be installed permanently above a site to be covered.
  • the vault 2 consists of two half-vaults deploying towards one another along two paths 8a, 8b, from the ends of these until reaching the middle of each of said paths.
  • Each path 8a, 8b of the vault shown in FIGS. 7 and 8 has in its middle a fitting 94 extending vertically under the associated path and connected to the ground by means of at least one bracing 96, 98 to ensure greater great stability of paths.
  • Each abutment 102 comprises a chamber 104 in which are arranged the means for supplying inflation fluid constituted for example by a fan 105.
  • a hanger 106 the ends of which are fixed to the abutments 102 extends parallel to each path 8a, 8b below the latter, a vertical partition 108 being arranged between the ground and the hanger 106 and comprising access doors 110.
  • An inflatable joint is arranged between the hanger 106 and the ends of the beams A, B, C ... of the arch.
  • the fan 105 is located in the extension of the supply duct 50 and the path 8a for deployment or folding.
  • An inflatable seal 107 is disposed in the annular space 109 between said supply duct 50 and said path 8a for sealing after inflation of the roof.
  • FIG 10 there is partially shown a vault composed of two half-vaults of which only one 2a is partially shown.
  • the half-arches in the folded state, rest on the ground 116 and comprise a beam in contact with the ground when they are deployed.
  • This arrangement makes it possible to carry out the path 8a, 8b in two symmetrical sections.
  • Each path 8a, 8b is connected by means of fittings 120 at the end and in the middle of the path 8a, 8b to a box 122 extending under said path.
  • Each box 122 has vertically a lunule shape and the curvature of the upper wall of said boxes 122 is identical to the curvature of said paths 8a, 8b.
  • An inflatable seal 132 is disposed between the upper wall of each box 122 and the ends of the beams A, B, C ... located opposite.
  • the paths 8a, 8b are connected to each box 122 by means of the fittings 120 and comprise a hollow hollow base 124.
  • the box 122 comprises compartments constituting ballasting means 128, access doors 126 and a conduit 130 for supplying inflation fluid.
  • the inflation fluid follows a flow path from the conduit 130 through the base 124 of the box 122 to the supply conduit 50 of each half-vault (see the arrows in FIG. 10).
  • a fitting 140 is fixed to an area of the periphery of the plate 52 which extends outside the arch.
  • the fitting 140 is connected to a member 142 for connection with a carriage 144 slidably mounted along a rail 146 bent parallel to the path 8a, 8b, the rail being anchored in the ground.
  • the connecting member 142 is constituted by a bar or a cable.
  • the ends of the deployment or folding paths can be embedded in the ground or articulated with respect to the ground.

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  • Architecture (AREA)
  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Tents Or Canopies (AREA)
  • Air Bags (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
  • Mushroom Cultivation (AREA)
  • Materials For Medical Uses (AREA)
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  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)

Abstract

The vaulted structure (2) according to the present invention is of the multilobed double-walled type, made up of beams (A, B, C...) which are inflatable and arranged side by side. The vaulted structure (2) comprises at least one unfolding or folding track (8a, 8b) along which the beams are mounted in a sliding manner. Each unfolding or folding track (8a, 8b) passes through the beams (A, B, C...) in a sealed manner. <IMAGE>

Description

La présente invention concerne les voûtes gonflables à double paroi polylobée, déployables et escamotables par gonflage et dégonflage respectivement.The present invention relates to inflatable vaults with double multi-lobed wall, deployable and retractable by inflation and deflation respectively.

D'une manière générale, les voûtes gonflables comprennent une pluralité de poutres longitudinales disposées côte à côte, des moyens de coulissement d'au moins une extrémité longitudinale des poutres le long d'au moins un chemin de déploiement ou de repliage et des moyens d'alimentation desdites poutres en fluide de gonflage.In general, the inflatable arches comprise a plurality of longitudinal beams arranged side by side, means for sliding at least one longitudinal end of the beams along at least one deployment or folding path and means for supply of said beams with inflation fluid.

On connaît plus particulièrement dans la demande de brevet français FR-A-87 14259 (EP-A-0 312 429) une voûte gonflable dans laquelle chaque poutre comporte deux panneaux opposés formant semelles et constituant chacun un des lobes de la paroi intérieure ou extérieure de la voûte et deux panneaux latéraux formant âmes de la poutre. Les moyens d'alimentation des poutres 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.More particularly known in French patent application FR-A-87 14259 (EP-A-0 312 429) is an inflatable arch in which each beam has two opposite panels forming flanges and each constituting one of the lobes of the interior or exterior wall. of the vault and two side panels forming webs of the beam. The means for supplying the beams 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 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 the beams and communicates with each of said beams by a closable orifice controlled by shutter means and the supply duct passes in leaktight manner through an opening arranged in each of the side panels .

Le déploiement de telles voûtes pose des problèmes du fait que le chemin de déploiement est situé à l'extérieur des poutres, ce qui entraîne des contraintes réparties sur une zone réduite de la paroi.The deployment of such arches poses problems because the deployment path is located outside the beams, which results in stresses distributed over a reduced area of the wall.

Pour remédier à ces inconvénients, la présente invention a pour but de fournir une voûte gonflable dont le déploiement ou le repliage soit facilité.To overcome these drawbacks, the present invention aims to provide an inflatable arch whose deployment or folding is facilitated.

A cet effet, la présente invention a pour objet une voûte gonflable à double paroi polylobée, déployable et escamotable par gonflage et dégonflage respectivement, comportant :

  • une pluralité de poutres gonflables, longitudinales et disposées côte à côte,
  • des moyens de coulissement d'au moins une extrémité longitudinale des poutres le long d'au moins un chemin de déploiement ou de repliage,
  • des moyens d'alimentation des poutres en fluide de gonflage,
caractérisée en ce que ledit chemin de déploiement ou de repliage est constitué d'une poutre rigide traversant de manière étanche lesdites poutres gonflables.To this end, the subject of the present invention is an inflatable vault with a multi-lobed double wall, deployable and retractable by inflation and deflation respectively, comprising:
  • a plurality of inflatable beams, longitudinal and arranged side by side,
  • means for sliding at least one longitudinal end of the beams along at least one deployment or folding path,
  • means for supplying the beams with inflation fluid,
characterized in that said deployment or folding path consists of a rigid beam sealingly passing through said inflatable beams.

Selon d'autres caractéristiques de l'invention :

  • chaque poutre comporte des moyens gonflables d'étanchéité avec ledit chemin de déploiement ou de repliage, après déploiement de la voûte,
  • ledit chemin de déploiement ou de repliage s'étend longitudinalement à l'intérieur du conduit d'alimentation et les moyens de coulissement sont situés entre ledit chemin et la paroi dudit conduit,
  • la poutre rigide est cintrée et posséde une section transversale circulaire,
  • les moyens de coulissement sont situés dans les ouvertures de deux panneaux adjacents de deux poutres successives,
  • les moyens de coulissement comportent des patins montés coulissants le long du chemin de déploiement ou de repliage, les patins étant supportés par des rayons s'étendant perpendiculairement audit chemin et prolongés radialement par une structure creuse annulaire coaxiale au chemin dont la périphérie radialement extérieure est reliée de manière étanche au bord des ouvertures desdits panneaux adjacents, la structure creuse ouvrant à l'intérieur du conduit d'alimentation et communiquant avec l'intérieur d'une desdites poutres successives par un orifice constituant ledit orifice obturable,
  • chaque structure comporte une virole extérieure et une virole intérieure formant un passage annulaire constituant ledit orifice obturable et les moyens d'obturation de cet orifice obturable sont formés par une vessie gonflable et aplatissable supportée par la virole intérieure et venant en contact étanche avec la virole extérieure lors de son gonflage,
  • chaque structure creuse comporte des moyens de fixation étanche d'une paroi extensible s'étendant entre deux structures creuses successives, ladite paroi extensible délimitant le conduit d'alimentation et assurant la continuité de ce dernier,
  • au moins un anneau rigide est monté coulissant le long du chemin entre ce dernier et chaque paroi extensible de manière que chaque paroi extensible constitue, après gonflage de la voûte, un soufflet dudit conduit d'alimentation,
  • une platine s'étend radialement vers l'extérieur de la structure creuse et comporte des moyens de fixation étanche des panneaux adjacents des poutres,
  • une ferrure est fixée sur une zone de la périphérie de la platine et s'étend à l'extérieur de la voûte, la ferrure étant reliée à un organe de liaison avec un chariot monté coulissant le long d'un rail cintré parallèlement audit chemin, le rail étant ancré dans le sol,
  • la voûte comporte deux chemins de déploiement ou de repliage, agencés parallèlement à proximité des extrémités longitudinales des poutres,
  • la voûte est constituée de deux demi-voûtes qui, par gonflage, se déploient l'une vers l'autre à partir des extrémités du ou des chemins de déploiement ou de repliage et qui, par dégonflage, se replient vers les extrémités du ou des chemins de déploiement ou de repliage en s'éloignant l'une de l'autre,
  • les chemins de déploiement ou de repliage sont fixés à leurs extrémités sur des caissons mobiles lestables,
  • chaque chemin comporte deux parties d'extrémité fixées chacune sur un caisson et une partie centrale amovible située entre les parties d'extrémité, les parties d'extrémité étant entourées par l'extrémité longitudinale des poutres de la demi-voûte à l'état replié,
  • les extrémités des chemins de déploiement ou de repliage sont fixées sur des structures en forme de culées, ancrées dans le sol,
  • les moyens d'alimentation en fluide de gonflage sont situés dans le prolongement du conduit d'alimentation et du chemin de déploiement ou de repliage, des moyens gonflables étant disposés dans l'espace annulaire entre ledit conduit d'alimentation et ledit chemin pour assurer l'étanchéité après gonflage de la voûte,
  • chaque chemin de déploiement ou de repliage comporte dans sa partie centrale une ferrure reliée au sol par au moins un contreventement,
  • chaque chemin de déploiement ou de repliage est relié par l'intermédiaire de ferrures situées en extrémité et au milieu du chemin à un caisson s'étendant sous ledit chemin et ayant verticalement une forme de lunule, la paroi courbe supérieure desdits caissons étant parallèle auxdits chemins,
  • un joint gonflable est disposé entre la paroi supérieure de chaque caisson et les extrémités des poutres situées en vis-à-vis,
  • ledit caisson comporte les moyens d'alimentation en fluide de gonflage, des moyens de lestage et une partie formant porte d'accès sous la voûte.
According to other characteristics of the invention:
  • each beam comprises inflatable sealing means with said deployment or folding path, after deployment of the arch,
  • said deployment or folding path extends longitudinally inside the supply conduit and the sliding means are located between said path and the wall of said conduit,
  • the rigid beam is curved and has a circular cross section,
  • the sliding means are located in the openings of two adjacent panels of two successive beams,
  • the sliding means comprise pads mounted to slide along the deployment or folding path, the pads being supported by spokes extending perpendicular to said path and extended radially by an annular hollow structure coaxial with the path, the radially outer periphery of which is connected sealingly at the edge of the openings of said adjacent panels, the hollow structure opening inside the supply duct and communicating with the interior of one of said successive beams by an orifice constituting said closable orifice,
  • each structure comprises an outer ferrule and an inner ferrule forming an annular passage constituting said closable orifice and the means for closing this closable orifice are formed by an inflatable and flattenable bladder supported by the inner ferrule and coming into tight contact with the outer ferrule during its inflation,
  • each hollow structure comprises means for tightly securing an extendable wall extending between two successive hollow structures, said extendable wall delimiting the supply duct and ensuring the continuity of the latter,
  • at least one rigid ring is slidably mounted along the path between the latter and each extensible wall so that each extensible wall constitutes, after inflation of the roof, a bellows of said supply duct,
  • a plate extends radially towards the outside of the hollow structure and comprises means for sealingly sealing the adjacent panels of the beams,
  • a fitting is fixed on an area of the periphery of the plate and extends outside the vault, the fitting being connected to a connecting member with a carriage mounted to slide along a curved rail parallel to said path, the rail being anchored in the ground,
  • the vault comprises two deployment or folding paths, arranged in parallel close to the longitudinal ends of the beams,
  • the vault consists of two half-vaults which, by inflation, deploy towards one another from the ends of the deployment or folding paths and which, by deflation, fold towards the ends of the deployment or folding path (s) moving away from one another,
  • the deployment or folding paths are fixed at their ends on ballast mobile boxes,
  • each path has two end parts each fixed on a box and a removable central part located between the end parts, the end parts being surrounded by the longitudinal end of the beams of the half-vault in the folded state ,
  • the ends of the deployment or folding paths are fixed to abutment-shaped structures anchored in the ground,
  • the inflation fluid supply means are located in the extension of the supply duct and of the deployment or folding path, inflatable means being arranged in the annular space between said supply duct and said path to ensure the sealing after inflation of the roof,
  • each deployment or folding path comprises in its central part a fitting connected to the ground by at least one bracing,
  • each deployment or folding path is connected by means of fittings situated at the end and in the middle of the path to a box extending under said path and having a vertically lunule shape, the upper curved wall of said boxes being parallel to said paths ,
  • an inflatable seal is placed between the upper wall of each box and the ends of the beams located opposite,
  • said box comprises the means for supplying inflation fluid, ballasting means and a part forming an access door under the roof.

La présente invention sera mieux comprise à la lecture de la description détaillée qui va suivre, faite à titre d'exemple et en référence aux dessins annexés, sur lesquels :

  • La figure 1 est une vue schématique en perspective d'une voûte selon la présente invention,
  • la figure 2 est une vue schématique partiellement en coupe selon les flèches 2-2 de la figure 1,
  • la figure 3 est une vue en coupe d'une partie de la figure 2, à plus grande échelle,
  • la figure 4 est une vue schématique partielle en coupe selon les flèches 4-4 de la figure 1,
  • la figure 5 est une vue en coupe schématique en coupe montrant un mode de réalisation des moyens d'étanchéité des poutres d'extrémité de la voûte avec le chemin de déploiement,
  • la figure 6 est une vue en perspective d'une voûte selon l'invention montée sur des caissons mobiles,
  • les figures 7 et 8 sont des vues représentant une installation comportant deux demi-voûtes selon l'invention et des moyens de contreventement,
  • la figure 9 est une vue de détail de la figure 8 montrant la disposition des moyens d'alimentation en fluide de gonflage,
  • la figure 10 est une vue représentant schématiquement une voûte selon l'invention, constituée de deux demi-voûtes semblables, et comportant un caisson de fermeture d'une extrémité de la voûte,
  • la figure 11 est une vue schématique en coupe d'un second mode de réalisation de la voûte selon l'invention.
The present invention will be better understood on reading the detailed description which follows, given by way of example and with reference to the appended drawings, in which:
  • FIG. 1 is a schematic perspective view of a vault according to the present invention,
  • FIG. 2 is a schematic view partially in section along the arrows 2-2 of FIG. 1,
  • FIG. 3 is a sectional view of part of FIG. 2, on a larger scale,
  • FIG. 4 is a partial diagrammatic view in section along the arrows 4-4 of FIG. 1,
  • FIG. 5 is a schematic sectional sectional view showing an embodiment of the means for sealing the end beams of the vault with the deployment path,
  • FIG. 6 is a perspective view of a vault according to the invention mounted on movable boxes,
  • FIGS. 7 and 8 are views showing an installation comprising two half-arches according to the invention and bracing means,
  • FIG. 9 is a detailed view of FIG. 8 showing the arrangement of the means for supplying inflation fluid,
  • FIG. 10 is a view schematically representing a vault according to the invention, consisting of two similar half-vaults, and comprising a closure box at one end of the vault,
  • Figure 11 is a schematic sectional view of a second embodiment of the vault according to the invention.

Sur la figure 1, on a représenté une voûte gonflable 2 constituée de plusieurs poutres gonflables A, B, C ... M, N étanches qui sont disposées côte à côte pour former la voûte.In Figure 1, there is shown an inflatable arch 2 consisting of several inflatable beams A, B, C ... M, N watertight which are arranged side by side to form the arch.

Une partie des poutres est représentée à l'état gonflé.Part of the beams is shown in the inflated state.

A chaque extrémité longitudinale 6a, 6b des poutres A, B, C ..., lesdites poutres sont montées coulissantes le long d'un chemin 8a, 8b de déploiement ou de repliage qui traverse les parois souples des poutres comme cela sera décrit ultérieurement.At each longitudinal end 6a, 6b of the beams A, B, C ..., said beams are slidably mounted along a path 8a, 8b for deployment or folding which passes through the flexible walls of the beams as will be described later.

Les chemins 8a, 8b de déploiement ou de repliage sont réalisés sous la forme d'un tube de section circulaire, cintré et fixé dans le sol de manière telle que lors du gonflage, les poutres A, B, C ... recouvrent partiellement ou totalement par exemple une piscine 10.The paths 8a, 8b for deployment or folding are made in the form of a circular section tube, bent and fixed in the ground so that during inflation, the beams A, B, C ... partially or totally for example a swimming pool 10.

On se reporte maintenant aux figures 2 à 5 qui montrent la manière dont un chemin 8a traverse les extrémités longitudinales des poutres A, B, C ...We now refer to Figures 2 to 5 which show the way in which a path 8a crosses the longitudinal ends of the beams A, B, C ...

On notera que la partie du chemin 8a représenté étant de dimension longitudinale relativement petite en regard de la longueur du chemin 8a, ladite partie représentée est sensiblement rectiligne, d'axe X-X.It will be noted that the part of the path 8a shown being of relatively small longitudinal dimension opposite the length of the path 8a, said part shown is substantially rectilinear, of axis X-X.

La figure 2 représente schématiquement une extrémité longitudinale partiellement en coupe d'une poutre B disposée entre une poutre A et une poutre C analogue.FIG. 2 schematically represents a longitudinal end partially in section of a beam B arranged between a beam A and a similar beam C.

Chaque poutre A, B, C ... est constituée d'au moins un panneau dont une partie 14a, 14b, 14c... formant semelles et une partie 18a, 20b, 18b, 20c... formant âmes desdites poutres.Each beam A, B, C ... consists of at least one panel including a part 14a, 14b, 14c ... forming flanges and a part 18a, 20b, 18b, 20c ... forming the webs of said beams.

On notera que les parties 18a, 20b et 18b, 20c... sont destinées à être situées côte à côte pour former une cloison de séparation des poutres A, B, C...Note that the parts 18a, 20b and 18b, 20c ... are intended to be located side by side to form a partition wall for the beams A, B, C ...

Les panneaux de deux poutres adjacentes sont fixés sur une platine 52 à l'aide de deux profilés 22 dans lesquels les extrémités de chaque panneau sont maintenues. Les profilés 22 sont fixés sur la platine 52 à l'aide de moyens de liaison 24 (figure 3).The panels of two adjacent beams are fixed to a plate 52 using two profiles 22 in which the ends of each panel are held. The profiles 22 are fixed to the plate 52 using connecting means 24 (Figure 3).

Une ouverture circulaire 26 d'axe X-X est percée dans les parties 18a, 20b, 18b, 20c... des panneaux des poutres adjacentes.A circular opening 26 of axis X-X is pierced in the parts 18a, 20b, 18b, 20c ... of the panels of the adjacent beams.

Une structure creuse annulaire 28 d'axe X-X, représentée à plus grande échelle sur la figure 3, est agencée dans l'ouverture 26.An annular hollow structure 28 of axis X-X, shown on a larger scale in FIG. 3, is arranged in the opening 26.

La structure 28 s'étend radialement à partir des bords des ouvertures des parties 18a, 20b et est reliée de manière étanche au bord de ces ouvertures.The structure 28 extends radially from the edges of the openings of the parts 18a, 20b and is tightly connected to the edge of these openings.

A sa périphérie intérieurement radiale, la structure 28 est prolongée par des rayons 30 s'étendant vers le chemin 8a.At its internally radial periphery, the structure 28 is extended by spokes 30 extending towards the path 8a.

Les rayons 30 supportent, par l'intermédiaire d'un anneau 31, des patins 32 en contact avec le chemin 8a pour pouvoir coulisser le long de celui-ci.The spokes 30 support, by means of a ring 31, pads 32 in contact with the path 8a in order to be able to slide along the latter.

Dans l'exemple représenté aux figures 2 et 3, la structure creuse 28 comporte une première plaque 34 et une seconde plaque 36, le diamètre extérieur de la première plaque 34 étant plus grand que le diamètre extérieur de la seconde plaque 36.In the example shown in FIGS. 2 and 3, the hollow structure 28 comprises a first plate 34 and a second plate 36, the outside diameter of the first plate 34 being greater than the outside diameter of the second plate 36.

A la périphérie extérieure de la première plaque 34 s'étend une virole extérieure 38 dirigée vers la seconde plaque 36 et s'étendant axialement au-delà de cette dernière, délimitant ainsi un passage 39 entre la plaque 36 et sa face intérieurement radiale.At the outer periphery of the first plate 34 extends an outer ferrule 38 directed towards the second plate 36 and extending axially beyond the latter, thus delimiting a passage 39 between the plate 36 and its internally radial face.

Une virole intérieure 40 est disposée à la périphérie extérieurement radiale de la seconde plaque 36, de manière à s'étendre vers l'extérieur de la structure creuse 28 pour former avec la virole extérieure 38 un conduit de communication entre le passage 39 de la structure creuse 28 et la poutre A.An internal ferrule 40 is disposed at the externally radial periphery of the second plate 36, so as to extend towards the exterior of the hollow structure 28 to form with the external ferrule 38 a communication conduit between the passage 39 of the structure hollow 28 and beam A.

La virole intérieure 40 est fixée sur la seconde plaque 36 à l'aide d'un support 42.The inner ferrule 40 is fixed to the second plate 36 by means of a support 42.

La virole intérieure 40 comporte sur sa face située en vis-à-vis de la virole extérieure 38 une vessie gonflable 44.The inner ferrule 40 has on its face located opposite the outer ferrule 38 an inflatable bladder 44.

La vessie 44 comporte un orifice de gonflage relié à un tuyau souple 47 traversant la virole intérieure 40 et la seconde plaque 36 pour s'étendre ensuite à l'intérieur de la structure 28 jusqu'à des moyens de gonflage, non représentés, de la vessie 44.The bladder 44 has an inflation orifice connected to a flexible pipe 47 passing through the inner shell 40 and the second plate 36 to then extend inside the structure 28 to inflation means, not shown, of the bladder 44.

Lorsque la vessie 44 est gonflée, comme représenté en traits tiretés sur la figure 3, le passage délimité entre la virole extérieure 38 et la virole intérieure 40 est obturé de manière étanche.When the bladder 44 is inflated, as shown in dashed lines in Figure 3, the passage defined between the outer shell 38 and the inner shell 40 is sealed.

D'autre part, une paroi extensible 46 s'étend entre deux structures 28 successives.On the other hand, an extendable wall 46 extends between two successive structures 28.

La liaison entre la paroi extensible 46 et chacune des structures 28 est assurée de manière étanche à l'aide de moyens de fixation 48 qui sont fixés sur la face extérieure de chacune des plaques 34, 36, à proximité de la périphérie intérieurement radiale de ces dernières.The connection between the extensible wall 46 and each of the structures 28 is ensured in a leaktight manner using fixing means 48 which are fixed on the external face of each of the plates 34, 36, near the internally radial periphery of these past.

La paroi extensible 46 délimite un conduit d'alimentation 50 en fluide de gonflage des poutres A, B, C..., ce conduit d'alimentation entourant le chemin 8a.The extendable wall 46 defines a supply conduit 50 for inflating fluid of the beams A, B, C ..., this supply conduit surrounding the path 8a.

Ainsi, la structure 28 ayant son extrémité intérieurement radiale ouverte, met en communication le conduit d'alimentation 50 par exemple avec la poutre A, par l'intermédiaire du passage annulaire 39 obturable par la vessie 44.Thus, the structure 28 having its internally radial end open, puts the supply duct 50 in communication, for example with the beam A, via the annular passage 39 which can be closed off by the bladder 44.

La platine 52 s'étend radialement vers l'extérieur de la structure 28 le long de la périphérie de la virole extérieure 38.The plate 52 extends radially outward from the structure 28 along the periphery of the outer shell 38.

En se reportant à la figure 2, on constate qu'un anneau ajouré rigide 56 est agencé entre le chemin 8a et la paroi extensible 46.Referring to FIG. 2, it can be seen that a rigid perforated ring 56 is arranged between the path 8a and the extensible wall 46.

Le diamètre de l'anneau rigide 56 est plus grand que le diamètre de la périphérie intérieurement radiale des plaques 34 et 36, de telle sorte que lorsque la paroi 46 est dans son état étendu, elle possède la forme d'un soufflet agencé entre deux structures 28 et assurant la continuité du conduit d'alimentation 50.The diameter of the rigid ring 56 is greater than the diameter of the internally radial periphery plates 34 and 36, so that when the wall 46 is in its extended state, it has the form of a bellows arranged between two structures 28 and ensuring the continuity of the supply conduit 50.

L'anneau rigide 56 est monté coulissant sur le chemin 8a de déploiement ou de repliage.The rigid ring 56 is slidably mounted on the path 8a for deployment or folding.

Le conduit d'alimentation 50 comporte une première extrémité qui est reliée à des moyens d'alimentation en fluide de gonflage des poutres A, B, C...The supply conduit 50 has a first end which is connected to means for supplying inflation fluid to the beams A, B, C ...

La seconde extrémité du conduit 50 est fermée.The second end of the conduit 50 is closed.

A cet effet et comme représenté sur la figure 5, le panneau 20n de la poutre d'extrémité comporte une structure annulaire 29 s'étendant entre le bord dudit panneau 20n et le chemin 8a.To this end and as shown in FIG. 5, the panel 20n of the end beam has an annular structure 29 extending between the edge of said panel 20n and the path 8a.

Cette structure annulaire 29 comporte, à sa périphérie intérieurement radiale, d'une part, un patin annulaire 33 entourant le chemin 8a avec un jeu relativement faible pour permettre son coulissement avec une faible fuite d'air compensée par le débit des moyens de gonflage et, d'autre part, un joint gonflable 35 qui assure l'étanchéité parfaite entre la structure annulaire 29 et le chemin 8a lorsque la voûte 2 est déployée et les moyens de gonflage stoppés, pour empêcher toute perte de pression de la poutre correspondante, et donc de l'ensemble de la voûte 2.This annular structure 29 comprises, on its internally radial periphery, on the one hand, an annular shoe 33 surrounding the path 8a with a relatively small clearance to allow its sliding with a low air leak compensated by the flow of the inflation means and , on the other hand, an inflatable seal 35 which ensures perfect sealing between the annular structure 29 and the path 8a when the arch 2 is deployed and the inflation means stopped, to prevent any loss of pressure of the corresponding beam, and therefore of the entire vault 2.

Dans le cas où la voûte 2 est formée de poutres A, B, C...M et N non reliées les unes avec les autres, les bords des panneaux de chaque poutre sont équipés d'une structure analogue à celle de la figure 5 et chaque poutre peut être reliée indépendamment à des moyens d'alimentation en fluide de gonflage.In the case where the vault 2 is formed of beams A, B, C ... M and N not connected with one another, the edges of the panels of each beam are equipped with a structure similar to that of FIG. 5 and each beam can be independently connected to means for supplying inflation fluid.

Pour déployer la voûte 2 représentée à la figure 1, on envoie dans le canal 50 de l'air sous pression à travers sa première extrémité ouverte.To deploy the arch 2 shown in FIG. 1, pressurized air is sent into the channel 50 through its first open end.

La vessie 44 de la poutre d'extrémité N la plus éloignée des moyens de gonflage est dégonflée et les vessies 44 des autres poutres sont gonflées.The bladder 44 of the end beam N furthest from the inflation means is deflated and the bladders 44 of the other beams are inflated.

L'air sous pression entrant dans le conduit 50 traverse les différentes structures annulaires 28 et pénètre par le passage 39 dans la dernière poutre N qui se gonfle.The pressurized air entering the conduit 50 passes through the various annular structures 28 and enters through the passage 39 in the last beam N which inflates.

Lorsque la pression dans la dernière poutre N atteint un niveau prédéterminé, on gonfle la vessie 44 associée de manière à rendre étanche ladite dernière poutre N.When the pressure in the last beam N reaches a predetermined level, the associated bladder 44 is inflated so as to seal said last beam N.

Ensuite, on dégonfle la vessie 44 correspondante de l'avant-dernière poutre M et l'air fourni par les moyens d'alimentation en fluide de gonflage pénètre alors dans ladite avant-dernière poutre M qui à son tour se déploie et entraîne le coulissement de la structure creuse 28 associée, du rayon 30 et du patin 32 associés, le long d'une première partie du chemin 8a.Then, the corresponding bladder 44 is deflated from the penultimate beam M and the air supplied by the inflation fluid supply means then enters said penultimate beam M which in turn deploys and causes the sliding of the associated hollow structure 28, of the radius 30 and of the associated shoe 32, along a first part of the path 8a.

Le gonflage de la voûte se poursuit jusqu'au déploiement complet des différentes poutres M...C, B, A.The inflation of the vault continues until the complete deployment of the different beams M ... C, B, A.

A ce moment, le joint 35 de la poutre d'extrémité N de la voûte est gonflé pour assurer l'étanchéité avec le chemin 8a.At this time, the joint 35 of the end beam N of the vault is inflated to seal it with the path 8a.

Pour l'escamotage de la voûte et le repliage des différentes poutres, les vessies 44 sont dégonflées successivement de manière à mettre en communication les différentes poutres avec le conduit d'alimentation 50.For the retraction of the vault and the folding of the different beams, the bladders 44 are deflated successively so as to put the different beams into communication with the supply duct 50.

L'air contenu dans les différentes poutres est alors aspiré à travers le conduit d'alimentation 50, entraînant le coulissement inverse et le repliage de la voûte.The air contained in the various beams is then sucked through the supply conduit 50, causing the reverse sliding and the folding of the vault.

Sur la figure 6, on a représenté une voûte selon l'invention constituée de deux demi-voûtes 2a, 2b dont l'une est représentée déployée et l'autre repliée.In Figure 6, there is shown a vault according to the invention consisting of two half-vaults 2a, 2b, one of which is shown deployed and the other folded.

La voûte comporte deux chemins 8a, 8b de déploiement ou de repliage dont les extrémités sont fixées sur des caissons mobiles 70, 72 disposés parallèlement.The vault comprises two paths 8a, 8b for deployment or folding, the ends of which are fixed on mobile boxes 70, 72 arranged in parallel.

Les caissons 70, 72 comportent un essieu arrière muni d'un train de roue 74 et des béquilles de stabilisation 78 situées au coin inférieur des caissons.The boxes 70, 72 have a rear axle provided with a wheel train 74 and stabilizing legs 78 located at the bottom corner of the boxes.

Chaque caisson comporte un attelage, non représenté, de manière à pouvoir être tracté par un tracteur routier 76.Each box has a hitch, not shown, so that it can be towed by a road tractor 76.

Les caissons sont lestables, par exemple à l'aide d'un tuyau 80 de remplissage d'eau ou de sable.The boxes are ballasted, for example using a pipe 80 for filling with water or sand.

La face supérieure 82 de chaque caisson est inclinée par rapport à la verticale de manière telle que les caissons étant en position, les arêtes inférieures 84 de chaque face 82 soient moins éloignées l'une de l'autre que les arêtes supérieures 86 de chaque face 82.The upper face 82 of each box is inclined relative to the vertical in such a way that the boxes being in position, the lower edges 84 of each face 82 are less distant from each other than the upper edges 86 of each face 82.

A l'état replié, les demi-voûtes 2a, 2b reposent sur les faces 82.In the folded state, the half-arches 2a, 2b rest on the faces 82.

Les caissons 70, 72 comportent également chacun un dispositif de gonflage 88 de la voûte (dont un seul est représenté sur la figure 6) qui est relié au conduit d'alimentation de la demi-voûte associée.The boxes 70, 72 also each include an inflation device 88 of the roof (only one of which is shown in FIG. 6) which is connected to the supply duct of the associated half-roof.

Pour faciliter le déplacement de l'ensemble, chaque chemin 8a ou 8b est composé de deux tronçons d'extrémité 90a ou 90b respectivement dont l'un est fixé sur le caisson 70 et l'autre sur le caisson 72, seuls les tronçons 90a et 90b fixés sur le caisson 72 étant visibles sur la figure 6.To facilitate the movement of the assembly, each path 8a or 8b is composed of two end sections 90a or 90b respectively, one of which is fixed on the box 70 and the other on the box 72, only the sections 90a and 90b fixed on the box 72 being visible in FIG. 6.

Chaque chemin 8a, 8b comporte également un tronçon central 92a, 92b démontable lorsque les deux demi-voûtes 2a, 2b sont repliées. Dans un tel état les tronçons d'extrémité 90a, 90b possèdent une longueur plus grande que l'épaisseur d'une demi-voûte repliée.Each path 8a, 8b also includes a central section 92a, 92b which can be dismantled when the two half-arches 2a, 2b are folded. In such a state, the end sections 90a, 90b have a length greater than the thickness of a folded half-vault.

On a ainsi réalisé une installation facilement déplaçable et pouvant subir les effets du vent du fait du lestage des caissons.An easily movable installation was thus produced which could be affected by the wind due to the ballasting of the boxes.

On se reporte maintenant aux figures 7 à 10 sur lesquelles est représentée une voûte selon l'invention, destinée à être installée à demeure au-dessus d'un site à couvrir.Referring now to Figures 7 to 10 which is shown a vault according to the invention, intended to be installed permanently above a site to be covered.

On notera que la voûte 2 est constituée de deux demi-voûtes se déployant l'une vers l'autre le long de deux chemins 8a, 8b, à partir des extrémités de ceux-ci jusqu'à atteindre le milieu de chacun desdits chemins.It will be noted that the vault 2 consists of two half-vaults deploying towards one another along two paths 8a, 8b, from the ends of these until reaching the middle of each of said paths.

Chaque chemin 8a, 8b de la voûte représentée aux figures 7 et 8 comporte en son milieu une ferrure 94 s'étendant verticalement sous le chemin associé et reliée au sol par l'intermédiaire d'au moins un contreventement 96, 98 pour assurer une plus grande stabilité des chemins.Each path 8a, 8b of the vault shown in FIGS. 7 and 8 has in its middle a fitting 94 extending vertically under the associated path and connected to the ground by means of at least one bracing 96, 98 to ensure greater great stability of paths.

Les extrémités des chemins 8a, 8b (figure 8) sont fixées sur des culées 102 ancrées dans le sol. Chaque culée 102 comporte une chambre 104 dans laquelle sont disposés les moyens d'alimentation en fluide de gonflage constitués par exemple par un ventilateur 105.The ends of the paths 8a, 8b (Figure 8) are fixed on abutments 102 anchored in the ground. Each abutment 102 comprises a chamber 104 in which are arranged the means for supplying inflation fluid constituted for example by a fan 105.

Un cintre 106 dont les extrémités sont fixées sur les culées 102 s'étend parallèlement à chaque chemin 8a, 8b en dessous de ce dernier, une cloison verticale 108 étant agencée entre le sol et le cintre 106 et comportant des portes d'accès 110.A hanger 106, the ends of which are fixed to the abutments 102 extends parallel to each path 8a, 8b below the latter, a vertical partition 108 being arranged between the ground and the hanger 106 and comprising access doors 110.

Un joint gonflable, non représenté, est agencé entre le cintre 106 et les extrémités des poutres A, B, C... de la voûte.An inflatable joint, not shown, is arranged between the hanger 106 and the ends of the beams A, B, C ... of the arch.

Comme représenté à la figure 9, le ventilateur 105 est situé dans le prolongement du conduit d'alimentation 50 et du chemin 8a de déploiement ou de repliage. Un joint gonflable 107 est disposé dans l'espace annulaire 109 entre ledit conduit d'alimentation 50 et ledit chemin 8a pour assurer l'étanchéité après gonflage de la voûte.As shown in Figure 9, the fan 105 is located in the extension of the supply duct 50 and the path 8a for deployment or folding. An inflatable seal 107 is disposed in the annular space 109 between said supply duct 50 and said path 8a for sealing after inflation of the roof.

Sur la figure 10, on a représenté partiellement une voûte composée de deux demi-voûtes dont une seule 2a est partiellement représentée.In Figure 10, there is partially shown a vault composed of two half-vaults of which only one 2a is partially shown.

Les demi-voûtes, à l'état replié, reposent sur le sol 116 et comportent une poutre en contact avec le sol lorsqu'elles sont déployées.The half-arches, in the folded state, rest on the ground 116 and comprise a beam in contact with the ground when they are deployed.

Cette disposition permet de réaliser le chemin 8a, 8b en deux tronçons symétriques.This arrangement makes it possible to carry out the path 8a, 8b in two symmetrical sections.

Chaque chemin 8a, 8b est relié par l'intermédiaire de ferrures 120 en extrémité et au milieu du chemin 8a, 8b à un caisson 122 s'étendant sous ledit chemin.Each path 8a, 8b is connected by means of fittings 120 at the end and in the middle of the path 8a, 8b to a box 122 extending under said path.

Chaque caisson 122 a verticalement une forme de lunule et la courbure de la paroi supérieure desdits caissons 122 est identique à la courbure desdits chemins 8a, 8b.Each box 122 has vertically a lunule shape and the curvature of the upper wall of said boxes 122 is identical to the curvature of said paths 8a, 8b.

Un joint gonflable 132 est disposé entre la paroi supérieure de chaque caisson 122 et les extrémités des poutres A, B, C... situées en vis-à-vis.An inflatable seal 132 is disposed between the upper wall of each box 122 and the ends of the beams A, B, C ... located opposite.

Les chemins 8a, 8b sont reliés à chaque caisson 122 par l'intermédiaire des ferrures 120 et comportent une base 124 creuse enterrée.The paths 8a, 8b are connected to each box 122 by means of the fittings 120 and comprise a hollow hollow base 124.

Le caisson 122 comporte des compartiments constituant des moyens de lestage 128, des portes d'accès 126 et un conduit 130 d'alimentation en fluide de gonflage.The box 122 comprises compartments constituting ballasting means 128, access doors 126 and a conduit 130 for supplying inflation fluid.

Le fluide de gonflage suit un trajet d'écoulement depuis le conduit 130 à travers la base 124 du caisson 122 jusqu'au conduit d'alimentation 50 de chaque demi-voûte (voir les flèches de la figure 10).The inflation fluid follows a flow path from the conduit 130 through the base 124 of the box 122 to the supply conduit 50 of each half-vault (see the arrows in FIG. 10).

Selon une variante représentée à la figure 11 une ferrure 140 est fixée sur une zone de la périphérie de la platine 52 qui s'étend à l'extérieur de la voûte. La ferrure 140 est reliée à un organe 142 de liaison avec un chariot 144 monté coulissant le long d'un rail 146 cintré parallèlement au chemin 8a, 8b, le rail étant ancré dans le sol. L'organe 142 de liaison est constitué par une barre ou un câble.According to a variant shown in FIG. 11, a fitting 140 is fixed to an area of the periphery of the plate 52 which extends outside the arch. The fitting 140 is connected to a member 142 for connection with a carriage 144 slidably mounted along a rail 146 bent parallel to the path 8a, 8b, the rail being anchored in the ground. The connecting member 142 is constituted by a bar or a cable.

On obtient ainsi un ensemble ayant une résistance plus importante aux contraintes transmises par la voûte.An assembly is thus obtained having greater resistance to the stresses transmitted by the arch.

D'une manière générale, les extrémités des chemins de déploiement ou de repliage peuvent être encastrées dans le sol ou articulées par rapport au sol.In general, the ends of the deployment or folding paths can be embedded in the ground or articulated with respect to the ground.

Claims (21)

  1. Inflatable, double-walled, multi-sectional vaulted structure, capable of being 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 for sliding at least one longitudinal end of the beams (A, B, C...) along at least one deployment or re-folding track (8a),
       means for supplying the beams with inflating fluid, characterised in that said deployment or re-folding track (8a) consists of a rigid beam passing in sealed manner through said inflatable beams (A, B, C...).
  2. Vaulted structure according to claim 1, characterised in that each beam (A, B, C...) comprises inflatable means (35) for sealing to said deployment or re-folding track (8a), after deployment of the vaulted structure.
  3. Inflatable vaulted structure according to claims 1 and 2, wherein each beam (A, B, C ...) comprises at least one panel, one part of which (14a, 14b...) forms the cap whilst another part (18b, 20b, 20c) forms the core of the beam, and the means for supplying the beams with inflating fluid are formed by at least one duct (50) passing through said beams and being extensible in length, the extension and retraction thereof being controlled by the deployment and retraction, respectively, of the vaulted structure (2), the supply duct (50) being common to all the beams and communicating with each of the beams via a closable orifice (39) controlled by the inflatable sealing means (44), the supply duct (50) passing in sealed manner through an opening provided in each panel of the beams, characterised in that said deployment or re-folding track (8a) extends longitudinally inside said supply duct (50) and the sliding means are located between said track (8a) and the wall of said duct (50).
  4. Vaulted structure according to any one of claims 1 to 3, characterised in that the rigid beam is arched and has a circular cross section.
  5. Vault according to claim 1 or 3, characterised in that the sliding means are located in the openings (26) of the adjacent panels of two successive beams (A, B, C...).
  6. Vault according to claim 5, characterised in that the sliding means comprise shoes (32) slidably mounted along the deployment or re-folding track (8a), the shoes (32) being supported by spokes (30) extending perpendicularly to said track and prolonged radially by an annular hollow structure (28) coaxial with the track, the radially outer periphery of which is connected in sealed manner to the edge of the openings (26) of the adjacent panels, the hollow structure opening inside the supply duct (50) and communicating with the interior of one of said successive beams (A, B, C...) by an orifice which constitutes said closable orifice (39).
  7. Vault according to claim 6, characterised in that each structure (28) comprises an external collar (38) and an internal collar (40) forming an annular passage which constitutes said closable orifice (39) and the means for closing said closable orifice are formed by an inflatable and flattenable bladder (44) supported by the inner collar (40) and coming into leaktight contact with the outer collar (38) when inflated.
  8. Vaulted structure according to claims 6 and 7, characterised in that each hollow structure (28) has leaktight fixing means (48) for an extensible wall (46) extending between two successive hollow structures (28), said extensible wall (46) defining the supply duct (50) and ensuring the continuity of the latter.
  9. Vaulted structure according to claim 8, characterised in that at least one rigid ring (56) is slidably mounted along the track (8a) between said track and each extensible wall (46), so that each extensible wall (46) constitutes, after inflation of the vaulted structure, a bellows in said supply duct (50).
  10. Vaulted structure according to any one of claims 3 to 9, characterised in that a plate (52) extends radially outwards of the hollow structure and comprises means (22, 24) for the leaktight fixing of the adjacent panels of the beams (A, B, C...).
  11. Vaulted structure according to claim 10, characterised in that a hinge (140) is fixed to a zone of the periphery of the plate (52) and extends outside the vaulted structure (2), the hinge (140) being connected to a means (142) of attachment to a carriage (144) slidably mounted along a rail (146) curved parallel to the track (8a), the rail being anchored in the ground.
  12. Vaulted structure according to any of the preceding claims, characterised in that the vaulted structure (2) comprises two deployment or re-folding tracks (8a, 8b) arranged parallel, close to the longitudinal ends of the beams (A, B, C...).
  13. Vaulted structure according to any of the preceding claims, characterised in that the vaulted structure (2) consists of two half-vaults (2a, 2b) which, by inflation, are deployed towards each other starting from the ends of the deployment or re-folding track or tracks (8a, 8b), and which, by deflation, are folded back towards the ends of the deployment or re-folding track or tracks (8a, 8b), thereby moving away from each other.
  14. Vaulted structure according to claim 12, characterised in that the deployment or re-folding track or tracks (8a, 8b) are fixed at their ends to movable boxes (70, 72) capable of being weighted with ballast.
  15. Vaulted structure according to claims 12 and 14, characterised in that each track (8a, 8b) comprises two end portions (90a, 90b) each fixed to a box (70, 72) and a removable central portion (92a, 92b) located between the end portions, the end portions (90a, 90b) being surrounded by the longitudinal ends of the beams of the half-vault (2a, 2b) in the folded state.
  16. Vault according to claim 12, characterised in that the ends of the deployment of re-folding tracks (8a, 8b) are fixed to structures in the form of abutments (102) anchored in the ground.
  17. Vault according to any of the preceding claims, characterised in that the means for supplying inflating fluid are located on an extension of the supply duct (50) and the deployment or re-folding track (8a, 8b), inflatable means (107) being arranged in the annular space (109) between said supply duct (50) and said track (8a, 8b) to ensure a leaktight seal after inflation of the vault.
  18. Vaulted structure according to claims 12 and 13, characterised in that each deployment or re-folding track (8a, 8b) comprises in its central portion a hinge (94) attached to the ground by means of a wind brace (96, 98).
  19. Vaulted structure according to claims 12 and 13, characterised in that each deployment or re-folding track (8a, 8b) is connected, via hinges (120) located at the end and in the centre of the track (8a, 8b), to a box (122) extending below said track and being vertically half-moon-shaped, the upper curved wall of said boxes (122) being parallel to said tracks.
  20. Vaulted structure according to claims 19, characterised in that an inflatable joint (132) is provided between the upper wall of each box (122) and the ends of the beams (A, B, C...) located opposite.
  21. Vaulted structure according to claims 19 and 20, characterised in that said box (122) comprises the means (124, 130) for supplying the inflating fluid, ballast means (128) and a portion (126) which forms an access door underneath the vaulted structure (2).
EP92401324A 1991-06-04 1992-05-14 Inflatable deployable and retractable vaulted structure Expired - Lifetime EP0517559B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9106755A FR2677394B1 (en) 1991-06-04 1991-06-04 INFLATABLE, DEPLOYABLE AND RETRACTABLE.
FR9106755 1991-06-04

Publications (2)

Publication Number Publication Date
EP0517559A1 EP0517559A1 (en) 1992-12-09
EP0517559B1 true EP0517559B1 (en) 1995-12-06

Family

ID=9413461

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92401324A Expired - Lifetime EP0517559B1 (en) 1991-06-04 1992-05-14 Inflatable deployable and retractable vaulted structure

Country Status (12)

Country Link
US (1) US5303516A (en)
EP (1) EP0517559B1 (en)
JP (1) JP3410488B2 (en)
CN (1) CN1029699C (en)
AT (1) ATE131244T1 (en)
AU (1) AU663872B2 (en)
CA (1) CA2069187C (en)
DE (1) DE69206489T2 (en)
DK (1) DK0517559T3 (en)
ES (1) ES2083703T3 (en)
FR (1) FR2677394B1 (en)
GR (1) GR3019183T3 (en)

Families Citing this family (12)

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FR2684408B1 (en) * 1991-11-29 1996-09-27 Spironef Ind INFLATABLE VOUTE.
FR2734856B1 (en) * 1995-05-31 1997-07-25 Spironef Societe Civile DEPLOYABLE AND RETRACTABLE INFLATABLE VOUTE
US6065252A (en) * 1995-10-20 2000-05-23 Norsen; Robert A. Pneumatically convertible roof
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
CA2296158A1 (en) * 2000-01-17 2001-07-17 Kabushiki Kaisha Piste Snow Industries Artificial snow system with air roof
CA2335692A1 (en) 2001-02-13 2002-08-13 Kabushiki Kaisha Piste Snow Industries System and method for maintaining a ski slope using snowmaking apparatuses
US6488590B2 (en) 2001-03-09 2002-12-03 Kabushiki Kaisha Piste Snow Industries Indoor skiing ground facilities having lighting fixtures
CA2345853A1 (en) 2001-04-30 2002-10-30 Minoru Katayama Skiing facilities capable of changing shape of surface of ski slope and method for changing shape of surface of ski slope of skiing facilities
WO2010041919A1 (en) * 2008-10-09 2010-04-15 Ricardo Adolfo Medina Caceres Inflatable modular enclosure
EP3359310B1 (en) * 2015-10-09 2023-06-07 Vestas Wind Systems A/S Wind turbine blade surface treatment apparatus and method
CN107642272A (en) * 2017-09-28 2018-01-30 天津德亨自动化设备有限公司 A kind of inflatable building ceiling structure

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US2752928A (en) * 1952-07-29 1956-07-03 Edward D Barker Inflatable tent
US2830606A (en) * 1953-08-24 1958-04-15 Louis E Daugherty Inflated tent
US2910994A (en) * 1957-05-08 1959-11-03 Kenneth E Joy Inflatable inclosure
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US3816867A (en) * 1972-06-23 1974-06-18 Foremark Corp Inflatable canopy
CH566745A5 (en) * 1972-07-28 1975-09-30 Bruelhart Joseph
US4004380A (en) * 1972-11-07 1977-01-25 Kwake John P Double walled inflatable structures
SU438761A1 (en) * 1972-11-21 1974-08-05 Предприятие П/Я Р-6455 Pneumatic construction
US4340626A (en) * 1978-05-05 1982-07-20 Rudy Marion F Diffusion pumping apparatus self-inflating device
US4227542A (en) * 1978-06-27 1980-10-14 Paul Bonfilio Collapsible shelter
US4317315A (en) * 1979-07-25 1982-03-02 Leblang Dennis W Inflatable shelter
US4301626A (en) * 1980-06-09 1981-11-24 Effective Conservation Systems, Inc. Inflatable heat barrier
US4531330A (en) * 1982-02-01 1985-07-30 Phillips William E Bed/shelter unit
JPS5921844A (en) * 1982-07-27 1984-02-03 大成建設株式会社 Moving apparatus of air membrane structure
SU1516595A1 (en) * 1987-08-14 1989-10-23 А.Н.Кульнев Convertible inflated structure
FR2620750B1 (en) * 1987-09-30 1989-12-29 Ts O Metodicheskaya AIR INFLATABLE STRUCTURE FOR CIVIL ENGINEERING AND MOUNTING METHOD THEREOF
FR2621944A1 (en) * 1987-10-15 1989-04-21 Delamare Guy INFLATABLE DOUBLE WALL WITH POLYLOBEE

Also Published As

Publication number Publication date
AU663872B2 (en) 1995-10-26
ES2083703T3 (en) 1996-04-16
FR2677394A1 (en) 1992-12-11
US5303516A (en) 1994-04-19
ATE131244T1 (en) 1995-12-15
CN1067473A (en) 1992-12-30
CA2069187A1 (en) 1992-12-05
CN1029699C (en) 1995-09-06
JP3410488B2 (en) 2003-05-26
DK0517559T3 (en) 1996-04-22
JPH0658022A (en) 1994-03-01
FR2677394B1 (en) 1993-09-24
DE69206489T2 (en) 1996-07-25
EP0517559A1 (en) 1992-12-09
DE69206489D1 (en) 1996-01-18
AU1700992A (en) 1992-12-10
GR3019183T3 (en) 1996-06-30
CA2069187C (en) 2001-01-30

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