WO2007118258A2 - Structures légères facilement déployables - Google Patents

Structures légères facilement déployables Download PDF

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Publication number
WO2007118258A2
WO2007118258A2 PCT/ZA2007/000020 ZA2007000020W WO2007118258A2 WO 2007118258 A2 WO2007118258 A2 WO 2007118258A2 ZA 2007000020 W ZA2007000020 W ZA 2007000020W WO 2007118258 A2 WO2007118258 A2 WO 2007118258A2
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WO
WIPO (PCT)
Prior art keywords
frame
legs
leg
opening
connection point
Prior art date
Application number
PCT/ZA2007/000020
Other languages
English (en)
Other versions
WO2007118258A3 (fr
Inventor
Etienne Douw Visser
Original Assignee
Etienne Douw Visser
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 Etienne Douw Visser filed Critical Etienne Douw Visser
Publication of WO2007118258A2 publication Critical patent/WO2007118258A2/fr
Publication of WO2007118258A3 publication Critical patent/WO2007118258A3/fr

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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
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63K—RACING; RIDING SPORTS; EQUIPMENT OR ACCESSORIES THEREFOR
    • A63K3/00—Equipment or accessories for racing or riding sports
    • A63K3/04—Hurdles or the like
    • A63K3/043—Athletics hurdles
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63K—RACING; RIDING SPORTS; EQUIPMENT OR ACCESSORIES THEREFOR
    • A63K3/00—Equipment or accessories for racing or riding sports
    • A63K3/04—Hurdles or the like
    • A63K3/046—Equestrian hurdles
    • 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
    • E04H2015/201—Tents or canopies, in general inflatable, e.g. shaped, strengthened or supported by fluid pressure with inflatable tubular framework, with or without tent cover

Definitions

  • This invention relates to readily deployable lightweight structures.
  • this invention relates to deployable structures comprising a frame consisting of inflatable structural components which are joined together and which when inflated support a covering.
  • Readily deployable lightweight structure means a deployable structure comprising a frame consisting of an inflatable structural components which are joined together and which when inflated carry a covering.
  • readily deployable lightweight structures include readily deployable habitations which provide protection against the elements and also may be capable of providing rugged protection from chemical and biological warfare agents.
  • readily deployable lightweight structures may comprise simple structures carrying advertising matter i.e. signs and bill boards etc as well as ladders, temporary scaffolding and temporary bridges, as well as sports barriers (i.e. obstacles for obstacle races etc) .
  • Reinforced frame material means a material comprising a woven fabric substrate which provides physical strength and which is coated on each side with an air tight layer of polymer material so that air cannot pass therethrough but is capable of seeping along the width of the material through the material of the substrate.
  • An inflatable leg means a hollow tubular body made of reinforced frame material.
  • the body normally has its axis straight or substantially straight but it may be curved.
  • the leg may have one end connected to a other legs at a connection point and the other end free.
  • Other legs may have both ends attached to other legs at separate connection points.
  • connection point means the location at which the ends of three or more legs join.
  • An open polyhedral structure means a structure comprising a number of legs meeting at a connection point, with adjacent legs lying along the edges of planar surfaces such as triangles or rectangles which are in adjacent planes inclined to one another.
  • Inner end of the leg means the end of a leg meeting at the connection point and "outer end of the leg” is the opposite end of the leg which may in some arrangements be free.
  • the base of the polyhedral structure is that nominal plane containing the outer ends of a plurality of legs, the inner ends of which meet at a connection point.
  • connection point is that area of the connection point most remote from the base of the polyhedral structure.
  • An inflatable overlapped leg means an inflatable leg formed by wrapping around a sheet of the reinforced frame material in such a way that a side portion of the frame material overlies the opposite side portion and is welded thereto.
  • the outer portion means the aforesaid side portion of the material forming an inflatable overlapped leg which overlies the said other side portion.
  • the inner portion means the said other side portion.
  • the outer edge means that side edge of the sheet of frame material defining the outer portion.
  • the inner edge means that side edge of the sheet of frame material defining the inner portion.
  • the outer layer means that layer of the reinforced frame material which in an overlapped inflatable leg is on the outside of the leg other than at the inner portion where it is welded to the outer portion.
  • the inner layer means that layer of the reinforced frame material which in an overlapped inflatable leg is on the inside of the leg other than at the outer portion where it is welded to the inner portion.
  • the frame is in the form of an open polyhedral structure which comprises at least several legs which meet at a connection point.
  • the legs are formed from air tight reinforced frame material.
  • the woven substrate is normally an artificial fibre such as a polyester e.g. Nylon or Kevlar .
  • the air tight polymer layer may typically comprise polyvinylchloride, polyurethane, Teflon etc.
  • the material is cut into strips (which are hereinafter called "leg strips") and wound around itself to form a tube.
  • the longitudinal edges of each leg strip overlap and are heat welded to each other.
  • the air tight layers ensure that the air cannot pass from one side of the reinforced frame material to the other.
  • the edges of the woven substrate are exposed at the ends and sides of the leg strip.
  • air can seep from one edge of the leg strip to another (normally from one side to the other) through the woven fabric substrate.
  • the amount of air escaping is relatively small, it is sufficient over a period of time, say eight to twelve hours, to cause the leg to deflate so that it loses all or a substantial part of its rigidity and mechanical strength.
  • a narrow strip of airtight material hereinafter called “the longitudinal covering band” is therefore normally welded to the outside side edges of the leg strip covering the exposed ends of the substrate to prevent air escaping therethrough.
  • the ends of the leg strips are cut in such a way as to enable the legs to meet at the connection point and to be welded together as shown in Figure 6 of the drawings. For accuracy of manufacture the overlapping edges of each leg will be at its upper portion.
  • a further narrow sealing strip of airtight material hereinafter called “the end covering band” is provided to cover any exposed substrate to prevent any air from escaping from the end edges of the leg.
  • a frame for a readily deployable lightweight structure comprising at least several inflatable legs meeting at a connection point to form an open polyhedral structure, wherein at the apex of the connection point there is an opening leading to the interior of the legs and wherein an inner sealing member is sealingly applied to the inside of the structure at the opening to seal the opening.
  • the longitudinal covering band is formed on the inside of the leg.
  • the inner edge of the leg is cut at an angle so that the inside airtight layer of the inner overlapping part can be sealed to the inside layer of the outer overlapping part so that the substrate will not be exposed to the interior of the leg and consequently air cannot seep along the substrate.
  • the opening may be formed by cutting of the material of the legs includ- ing the covering strips, by shaping the ends of the legs to provide the opening or in any other way apparent to persons skilled in this art.
  • the inner rigid member preferably co-operates with an outer sealing member which may also seal against the material sealing the opening.
  • the inner member preferably comprises a domed structure shaped to fit closely within the legs at the apex and preferably is provided with a central projecting pin which is conveniently threaded and can receive a nut with a hoop thereon to be engaged by guide ropes,.
  • the clamping member preferably abuts the longitudinal bands at the inner ends of the legs.
  • the outer member is preferably also rigid and is preferably correspondingly shaped to fit over the outside of the device.
  • the sealing means preferably also incorporates sealing material introduced between the inner and outer members to improve the seal with the fabric of the legs at the opening.
  • the sealing material which is preferably curable and compressible is conveniently introduced into the space between the sealing and outer members and in the aperture in the frame material so as to seal the ends of the woven material at the edges of the frame material.
  • Figure 1 is a perspective view of a rapidly deployable advertising structure of the invention comprising a frame with a fabric cover, the sealing member being omitted for clarity;
  • Figure 2 is an enlarged diagrammatic section through the airtight reinforced frame material whereof the legs are made;
  • Figure 3 is a transverse section through an inflatable overlapped leg forming part of a frame of the invention;
  • Figure 4 is a perspective view partially broken away showing the construction of the material forming the leg;
  • Figure 5 is a diagrammatic plan showing how the air tight material strips are cut to form the connection point
  • Figure 6 is an enlarged view in the direction of arrow 5 of Figure 1;
  • Figure 7 is a section through the sealing means
  • Figure 8 is a view similar to Figure 6 but with the outer sealing member in position and with parts broken away for illustrative purposes;
  • Figure 9 is a plan of a deployable habitat of the invention.
  • Figure 10 is a front view of deployable habitat similar to that shown in Figure 9 embodying a further modification
  • Figure 11 is a view similar to Figure 7 of a modified sealing means showing how this is secured in position
  • Figure 12 is a view similar to Figure 11 but with a nut and washer on the pin and with the inner and outer sealing members forced towards each other;
  • Figure 13 is a transverse section through an modified inflatable overlapped leg
  • Figure 14 is a detail transverse section through a leg strip prior to being wound into the form of the leg;
  • Figure 15 is a detail section similar to Figure 13 of a further leg of the invention.
  • Figure 16 is an enlarged section of the inner portion of the leg strip from which the leg shown in Figure 15 is formed.
  • the structure 110 comprises an inflatable frame 112 which supports a covering 114.
  • the frame 112 is in the form of an open polyhedral construction comprising a structural element consisting of two ground engaging legs 116 and 118 and a cross member 120 having one end connected to the legs 116 and 118 at a first connection point 122.
  • the other end of the cross member 120 connects at a second connection point 124 to two other ground engaging legs 126 and 128.
  • the cross member 120 is considered herein as a leg with both its ends connected to connection points 122 and 124.
  • the legs meeting at each connection point extend along the edges of triangles that lie in planes inclined to one another.
  • a further notional end surface joins the free ends of the legs that are connected at the connection point.
  • the base of the polyhedral structure (indicated at 132) is defined by the outer ends of the legs 116, 118, 126 and 128 and is rectangular. It will be seen that the connection points are spaced from the end surfaces 130 and from the base 132.
  • a valve 136 is provided at the outer end of one leg 116 whereby the frame 112 can be inflated or deflated for erection or collapse respectively.
  • Each leg is formed from a strip 200 ("the leg strip") of air tight frame material that comprises a substrate consisting of woven polyester (indicated at 202 shown in Figures 2 and 3) arranged with the warp threads 204 extending in the direction of the axis of the leg and the weft threads 206 extending from one side edge 208 of the strip 200 to the other side edge 210.
  • the weave of the substrate 202 is shown in the drawings as being very open for the purpose of clarity but in fact it is a close weave.
  • the substrate 202 is coated on each of its inner and outer sides with a polyvinylchloride layer 212 and 214.
  • the leg strip 200 has its ends shaped with arcuate cutouts 216 as shown in Figure 5 so that the shape of the inner ends of the legs can be accurately determined. Each cutout 216 has corner pieces 218 at its ends.
  • Each leg strip 200 is wound around itself to form a tube 220 (constituting an inflatable overlapped leg) with its outer edge 222 overlapping the inner edge 224.
  • the two edges 222 and 224 are heat sealed to one another. In such seal, the inner layer 212 of the outer edge 222 is heat welded to the outer layer 214 of the inner edge 224.
  • a thin longitudinal covering band 226 of airtight material is heat sealed along the join of the edges of the leg strip 200 overlying and covering the outer edge 222 thereby preventing air from seeping through the exposed ends of the substrate 202.
  • connection points 122 and 124 The ends of the legs (formed by the cutouts 216) are butt welded together at the connection points 122 and 124.
  • the overlapping edges 222 and 224 of each leg is at its upper portion of the leg and the overlapping edges of all the legs meet the apex 138 of the connection point, i.e. at that portion of the connection point which is most remote from the notional end surface 130.
  • End covering bands 140 of airtight material are provided between the inner ends of the legs where the cut-outs are welded together.
  • a sealing assembly 300 (see Figures 8 and 9) is provided at the opening 142.
  • the sealing assembly 300 comprises a metal or hard plastic inner member 302 in the form of a dome which is shaped to correspond to the shape of the legs at the apex 138.
  • a threaded metal pin 304 extends radially of the dome.
  • a dished hard plastic outer member 306 shaped to correspond to the domed inner member 302 has an opening 308 therethrough.
  • the inner member 302 is placed within the legs at the apex 138 of the connection point so that the pin 304 passes through the opening 142 and through the opening 308 of the outer member 306.
  • the inner and outer members 302 and 306 are is of such dimensions that they clamp between them the legs and the ends of the bands 226 and 140.
  • the inner and outer members 302 and 306 are bonded to the adjacent surfaces of the legs and bands to prevent air escaping through the opening 142.
  • the sealing assembly 300 means that there is a good seal between the various fabric parts and no air can seep away from the interior of the legs at this point.
  • the covering 114 may have advertising or instructional matter printed thereon.
  • the structure 110 can be quickly and easily erected or demounted so that it may be used at sporting stadia and the like and be stored when not needed.
  • a modified sealing assembly 400 is shown in Figures 10 and 11.
  • the assembly 400 comprises a flat inner metal disc 402 to the centre of which is welded a threaded pin 404.
  • a dished metal outer member 406 is provided, outside of and shaped to correspond with the shape which the material 408 of the legs at the apex of the connection point and having a central through bore 410.
  • At the apex of the connection point there is an opening 412 similar to the opening 142 in the material of the legs.
  • the pin 404 passes through the opening 412 in the material 408 and the bore 410 through the outer member 406.
  • a nut 414 engages the pin 404 outside the outer member 406.
  • a curable rubber-like sealant 418 is introduced into space between the material of the leg and the disc 102. This is allowed to set. Thereafter the nut 414 is tightened compressing the sealant 418 and forcing it to conform with the shape of the material at the apex. A portion 420 of the sealant is forced between the edges of the disc 402 and outer member 406 on the one hand and the material 308 on the other. This arrangement provides a good sealing over the uneven surfaces at the overlapping portions of the leg and the covering bands. If desired a metal loop, similar to metal loop 312, may be attached to the nut 414 to permit connections or guy ropes to be secured thereto.
  • connection points are mutatis mutandis the same as that described with reference to Figures 1 to 8.
  • connection points described above can be modified to provide a sealed connection point where four, five, six and more legs meet.
  • FIG. 11 there is shown an inflatable frame 500 for a readily deployable light weight habitat.
  • the frame 500 comprises four end hexagonal polyhedral sub-frames 502 and a top square polyhedral sub-frame 504.
  • Each end sub-frame 502 comprises six inflatable legs 506 radiating from a central connection point 508 and being connected to six peripheral inflatable legs 510.
  • the legs 506 lie along the edges of triangles that themselves lie in planes inclined to one another.
  • a notional flat end surface (indicated at 512) is defined by the peripheral legs 510 which join the free ends of the radially extending legs 506 that are connected at the connection point 508.
  • connection point 508 is spaced from the end surface 512 so that when assembled the sub-frame 502 forms a part of a geodesic structure.
  • the top sub-frame 504 comprises four inner legs 514 radiating from a central connection point 516 and being connected to four peripheral legs 518.
  • the legs 514 also lie along the edges of triangles that themselves lie in planes inclined to one another and a further notional flat end surface (indicated at 520) defined by the peripheral legs 518.
  • connection point 516 is spaced from the end surface 520 so that when assembled the sub-frame 504 forms a part of a geodesic structure.
  • the legs 506, 510, 514 and 518 are constructed identically or similarly to the legs 116. 118, 126 and 128.
  • the distal ends 522 of the six inner legs 506 engage the peripheral legs 510 at outer connection points 524.
  • one inner leg 506 is connected to the ends of two peripheral legs respectively, 510.1 and 510.2; 510.2 and 510.3; and 510.3 and 510.4 respectively defining the outside of the frame 500.
  • Two of the other three outer connection points 524.4 and 524.5 are common to the two adjacent end sub-frames 502 and the third is common to an outer connection point of the top sub-frame 504. It will be noted that the ends of six legs are connected at these connection points 524.1, 524.2 and 524.3 and 508.
  • At the sixth connection point 524.6 there are connected an inner leg 506.6, two peripheral legs 508.5 and 508.6, two peripheral legs 518.1 and 518.2 of the top sub-frame 504 and a radial leg 514.1 of the top sub-frame.
  • the frame 500 can cover an extremely large area and can be of significant height.
  • the legs can have a substantial diameter typically of 400 mm and a substantial length, typically of four metres.
  • the area covered by the frame 500 and the cover (which is not shown in Figure 11) could be about one hundred square metres and the height can be ten metres.
  • the legs are inflated up to five Bar.
  • One or more filling valves may be provided for the frame 500. Once the covering (not shown in the drawings) is applied to the frame 500 it can be inflated very quickly indeed, say in half an hour. By having eyes in the covering and passing the pins 304 or 404 through these eyes and clamping the covering to the outer sealing members by the nuts 310 or 414 the location of the covering on the frame can be correctly maintained.
  • connection points As mentioned above, it would have been extremely difficult if not impossible in practice to form these connection points by hitherto known methods i.e. purely by welding. This is especially so at connection points where six legs meet. This is because there would be a large number (twenty four) of layers of material at the apex of the connection points, eighteen where four legs join and twelve where three join. As mentioned above, an attempt to weld such a large number of layers would fail. On the other hand, by having the sealing arrangement at the connection points as described good seals are provided at the apices of the connection points and it is easy to align the legs at this location.
  • a modified frame 600 is shown in Figure 12.
  • This frame 600 is substan- tially the same as the frame 500 except as described below.
  • the inner legs 602 and peripheral legs 604 of one end sub-frame 606.1 (hereinafter called “the separate legs") are connected together but are pneumatically separate from all the other legs of the frame 600.
  • the part of the covering 610 forming the habitat 612 over the sub- frame 606.1a is separate from the rest and is connected at its sides to the remainder of the covering by means of sliding clasp fasteners (not shown).
  • the separate legs 602 are deflated, the sliding clasp fasteners moved to their open position and the portal cover and deflated separate legs may be raised to provide a large portal to the interior of the habitat.
  • the habitat can be large enough to house a fighter aircraft and the portal may be sufficiently large to permit the aircraft to enter into the habitat which serves as a hanger where the aircraft can be protected during maintenance, refuelling, rearming etc.
  • a rope slidable through eyes suspended from selected connection points may be provided to lift the portal cover and separate legs.
  • FIG. 13 there is shown a modified tubular inflatable overlapped leg 700 formed from an elongated sheet 702 of plastic reinforced frame material of the same type from which is made the legs illustrated in Figures 2 and 3.
  • the sheet 702 is wound around itself so that there is an outer end portion 704 overlying the inner end portion 706 at the other side of the sheet 702 to form the leg 700.
  • an elongated longitudinal sealing band 710 is provided.
  • the longitudinal sealing band 710 is located at the inner edge 712 on the interior of the tubular leg 700.
  • the band 710 is sealed to the inner layer 714 of the inner end portion 716, passes over and covers the inner edge 712 and then is also sealed to the inner layer 714 of the material adjacent the outer end portion 704.
  • the exposed substrate 708 is thus covered and sealed from the interior of the leg 700.
  • Figure 14 there is shown the elongated sheet 702 of frame material as prepared prior to being wound into the form of the tube forming the leg 700.
  • a sealing band 710 is sealed to the inner layer 714 of the sheet 702 at the inner end portion 706 of the sheet.
  • the sealing band 710 is arranged to have a section 726 projecting beyond the inner edge 712. It is this projecting section 726 which is sealed to the inner layer 714 of the sheet material adjacent the outer end portion 704 thereof.
  • the aforesaid sealing operation takes place simultaneously with and as part of the sealing of the outer portion to the inner portion.
  • FIG. 15 and 16 there is shown a detail of a modified inflatable overlapped leg 800 of the invention.
  • the leg 800 comprises a similar elongated sheet of impervious plastic frame material 820 as described above.
  • the inner edge 802 of this material is cut at an angle to the main surfaces 804 of the sheet.
  • the angle which is preferably of the order of 45°, is such that the edge of the inner layer 806 projects (as shown at 808 in Figure 16) beyond the woven reinforcing substrate 810.
  • the projecting part 808 of the inner layer 814 at the inner end portion 812 will be bent over towards and sealed to the inner layer 806 of the outer portion 814.
  • the inner layer 814 extends beyond the edge of the woven substrate 810, it will seal the inner edge of the reinforcing material 810 and will prevent that air reaching the woven substrate and seeping out of the leg 800 as discussed above. [0056] It will be seen that in the Figures 16 and 17 embodiment of the necessity of having a separate sealing band is avoided.
  • the construction of the covering may be such as to provide protection against chemical and biological agents as well as nuclear fall out and the elements.
  • the habitats that will be formed on the frames 500 and 600 can be put to any desired use including military or similar uses, e.g. a command post, a field hospital etc.
  • the frames with the cover thereon form a stable structure and it is not necessary to use guy ropes, pegs etc to hold it in position even though these may be used if desired. Furthermore the structure will not sway or collapse to one side when in the path of wind up to a force normally encountered in use.
  • the deployable habitats mentioned above may have suitable doors for personnel to enter and leave the habitat. Transparent sections may be introduced into the cover to serve as windows. There may be a plurality of filing valves to hasten filling and for this purpose sets of legs may be pneumatically separate from each other.
  • one or more geodesic structures may be connected together to form an even larger structure. Typically this can be effected by omitting two end sub-frames 502 or 606 of the two geodesic structures and connecting these structures at the connection points 524.5 and 524.4 (or equivalent in other frames).
  • the deployable habitat may be of different sizes and construction normally geodesic constructions but it can be others if desired.
  • the invention is not limited to the precise constructional detail hereinbefore described and illustrated in the drawings.
  • not all the members may be connected, and for example only the legs forming one or more of the various sub-frames are connected to be inflated together.
  • the top sub-frame 520 is first inflated and thereafter the other sub- frames 502.
  • the edges of the reinforced frame material may be connected together by means of butt welds.
  • a nut may be formed on this member.
  • the nut is preferably formed on inside of the inner member, there being an opening in the inner member so that a bolt can be passed through an eye in the covering and engaged in the nut. It will be understood that the inner end of the bore of the nut will have to be sealed and of course the nut must be sealed to the inner member.
  • each sub-frame may be maintained separate during storage, and only connected immediately prior to erection. Suitable mechanical connections for example connecting the pins 304 or 404 are provided to so connecting the sections.
  • the cover sections may be connected by sliding clasp fasteners, by hook and loop fasteners (typically Velcro ® ) or by French rope lacing.
  • hook and loop fasteners typically Velcro ®
  • French rope lacing typically Velcro ®
  • These sections are connected together and to the ground sheet, especially when connected by an airtight zip, they form a substantially airtight bag.
  • This bag can be inflated to provide an initial erection of the tent before the legs of the frame are inflated. This will simplify and speed up the erection of the tent and the legs will take up their correct position when the bag is inflated and then can more easily be inflated.
  • the frame may take other shapes so that it may constitute any desirable framework.
  • a framework may support material carrying advertisements and in particular large advertisements.
  • the framework may also be shaped to constitute constructional parts such as ladders, scaffolding, bridges, obstacles and sports barriers such as hurdles for use in races, horse jumping exercises and the like where these frameworks require to be rapidly deployable and where they are intended for temporary use.

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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)

Abstract

L'invention concerne une structure légère facilement déployable qui comprend une armature munie d'une toile de protection. L'armature est composée de structures polyhédriques à pieds gonflables, fabriquées dans un matériau d'armature renforcé constitué d'un substrat de renfort tissé recouvert de chaque côté d'une couche de matériau polymère étanche à l'air. Ce matériau est enroulé en un tube dont une partie latérale externe chevauche une partie d'extrémité interne. Une bande de recouvrement longitudinale recouvre le bord de la partie latérale externe. Les pieds se rejoignent en des points de jonction. Une ouverture est ménagée à chaque point de jonction. Un dispositif d'étanchéité est disposé à chaque point de jonction, lequel dispositif est constitué d'un élément d'étanchéité interne et d'un élément d'étanchéité externe scellés tous deux sur la toile.
PCT/ZA2007/000020 2006-04-10 2007-04-10 Structures légères facilement déployables WO2007118258A2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
ZA200602925 2006-04-10
ZA200602923 2006-04-10
ZA2006/02925 2006-04-10
ZA2004/02923 2006-04-10

Publications (2)

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WO2007118258A2 true WO2007118258A2 (fr) 2007-10-18
WO2007118258A3 WO2007118258A3 (fr) 2007-11-29

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITAR20100024A1 (it) * 2010-10-11 2011-01-10 Federico Nonni Ostacolo per sport equestri
ITBO20120553A1 (it) * 2012-10-10 2014-04-11 Nora Paolo De Dispositivo di copertura e protezione gonfiabile
FR3016531A1 (fr) * 2014-01-20 2015-07-24 Guy Bessat Ensemble pedagogique notamment pour l'apprentissage de l'equitation, en particulier pour le travail de barres au sol ou de saut d'obstacle

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2812769A (en) * 1955-05-06 1957-11-12 Engineering Dev Corp Tents
US4197681A (en) * 1978-07-21 1980-04-15 Duane J. Baxter Inflatable frame for tent
FR2475978A2 (fr) * 1980-02-18 1981-08-21 Soubie Pierre Structures gonflables, leur procede de fixation et embarcations pneumatiques comportant de telles structures
FR2572451A2 (fr) * 1984-10-30 1986-05-02 Lantermoz Pitance Et Cie Structure modulaire gonflable.
DE3923417A1 (de) * 1989-07-12 1991-01-24 Werner Pfeifer Aufblasbarer gegenstand

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2812769A (en) * 1955-05-06 1957-11-12 Engineering Dev Corp Tents
US4197681A (en) * 1978-07-21 1980-04-15 Duane J. Baxter Inflatable frame for tent
FR2475978A2 (fr) * 1980-02-18 1981-08-21 Soubie Pierre Structures gonflables, leur procede de fixation et embarcations pneumatiques comportant de telles structures
FR2572451A2 (fr) * 1984-10-30 1986-05-02 Lantermoz Pitance Et Cie Structure modulaire gonflable.
DE3923417A1 (de) * 1989-07-12 1991-01-24 Werner Pfeifer Aufblasbarer gegenstand

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITAR20100024A1 (it) * 2010-10-11 2011-01-10 Federico Nonni Ostacolo per sport equestri
ITBO20120553A1 (it) * 2012-10-10 2014-04-11 Nora Paolo De Dispositivo di copertura e protezione gonfiabile
FR3016531A1 (fr) * 2014-01-20 2015-07-24 Guy Bessat Ensemble pedagogique notamment pour l'apprentissage de l'equitation, en particulier pour le travail de barres au sol ou de saut d'obstacle

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WO2007118258A3 (fr) 2007-11-29

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