EP0647751A2 - Poudre tressée gonflable et procédé pour sa fabrication - Google Patents

Poudre tressée gonflable et procédé pour sa fabrication Download PDF

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Publication number
EP0647751A2
EP0647751A2 EP94850131A EP94850131A EP0647751A2 EP 0647751 A2 EP0647751 A2 EP 0647751A2 EP 94850131 A EP94850131 A EP 94850131A EP 94850131 A EP94850131 A EP 94850131A EP 0647751 A2 EP0647751 A2 EP 0647751A2
Authority
EP
European Patent Office
Prior art keywords
bladder
airbeam
sleeve
fabric
braided
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.)
Withdrawn
Application number
EP94850131A
Other languages
German (de)
English (en)
Other versions
EP0647751A3 (fr
Inventor
David S. Brookstein
Donald J. Rose
Roman Rondiak
John J. Mcintire
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Albany International Corp
Original Assignee
Albany International Corp
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 Albany International Corp filed Critical Albany International Corp
Publication of EP0647751A2 publication Critical patent/EP0647751A2/fr
Publication of EP0647751A3 publication Critical patent/EP0647751A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H15/00—Tents or canopies, in general
    • E04H15/20—Tents or canopies, in general inflatable, e.g. shaped, strengthened or supported by fluid pressure
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H15/00—Tents or canopies, in general
    • E04H15/20—Tents or canopies, in general inflatable, e.g. shaped, strengthened or supported by fluid pressure
    • E04H2015/201—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 pertains to beams used in making various structures such hangars, temporary shelters and the like, and more particularly to air-inflated beams and a method of making such airbeams.
  • Such temporary structures are supported in three different ways.
  • One common method is to provide a substantially semi-circular air impermeable membrane which is inflated and supported by the internal air-pressure. This method can be unsatisfactory because it makes use of noisy air pumps which must be operated continuously. Moreover entrance and egress through these structures can be effected only through air locks which are slow and cumbersome to operate. In addition, economically it is unfeasible to provide these structures with air locks large enough to accommodate large equipment, such as for example a truck or a helicopter and thus are unsuitable as hangars.
  • Another method of structural support frequently used consists of frame work formed of metal bars, beams or pipes. A membrane is then pulled over and secured to the frame. This method is also unsatisfactory because it is expensive, time consuming and can requires special skill and/or equipment to erect. Moveover because of the weight of the frame components, it is difficult and expensive to transport from one location to another.
  • a third method for supporting shelters also provides a frame work, however its components consist of tubular pressurized fabric members bent into curvilinear shapes.
  • a membrane is either integrally attached to, or pulled over and secured to the pressurized fabric members.
  • these members require substantial forces to bend them into curvilinear shapes.
  • punctured they are prone to explosive depressurization accompanied by catastrophic and rapid collapse of the structure.
  • a further objective is to provide an airbeam which can be made to any desired curvature without subjecting it to excessive external forces.
  • an airbeam constructed in accordance with this invention includes a bladder formed of a gas impermeable material and surrounded by a sleeve.
  • the sleeve is preferably made of a braided fabric.
  • the braided fabric is a multilayer braided fabric with the layers being interlocked to prevent delamination.
  • a resin may be used to bond the fabric to the bladder and to provide a protective coating to the fabric.
  • One method of making the airbeam consists of filling the tubular bladder with a solid granular material.
  • the filled bladder is bent to a preselected shape and then a vacuum pressure is applied to the bladder to cause it collapse around the granular material and form a solid mandrel.
  • the fabric is braided around this mandrel, after which the granular material is removed.
  • Figure 1 shows an example of one type of temporary shelter 10 constructed of several airbeams 12, 12' forming a cross arch frame work 11.
  • Other significant types of frame works which can be made with the subject airbeams include "arch and purling" and "leaning arch”.
  • the frame work 11 supports a fabric 14 made of canvas or other material satiable to provide roofing for the temporary shelter 10 as discussed above.
  • airbeam 12 is curvilinear and is arranged amd constructed to extend circumferentially from one side of the structure 10 to the other with its ends being secured to the ground or other floor surface.
  • Beam 12' is also curvilinear and extends from the floor surface until it intersects and is secured to beam 12 to form a crossed arch framework.
  • the frame work 11 may be constructed of several beams 12 and/or 12' as required. Since the fabric 14 is supported by the frame work 11 of airbeams 12, 12', the shelter 10 can be provided with doors of various sizes which have been omitted in the Figure for the sake of clarity.
  • Airbeam 12 includes a tubular bladder 20 made of a material impervious to air.
  • the bladder 20 may be made of a polymeric material.
  • bladder 20 is provided with two end fittings 22, 24 arranged to provide an air-tight seal with the bladder 20.
  • Each fitting 22, 24 is provided with an air valve 26, 28 used to pump air into and out of the bladder 20 as described more fully below.
  • the fittings 22, 24 are provided with threaded holes and the valves 26, 28 are screwed into these holes, discussed more fully below.
  • each end fitting 22, 24 has a conical section 30 and a substantially cylindrical section 32.
  • the bladder 20 is mounted peripherally on the cylindrical section 32 of the end fittings as shown.
  • End fitting 24 has a construction similar to end fitting 22 just described.
  • a tether 40 Disposed inside and extending through the bladder 20 is a tether 40 with two ends. Each end of the tether 40 is attached to the end fittings 22, 24 respectively. The function of the tether is to hold onto the end fittings 22, 24 if the airbeam 12 is punctured to insure that the end fittings 22, 24 do not fly off and cause damage.
  • a sleeve such as a fabric 42 is mounted on bladder 20 extending from one end fitting 22 to the other.
  • the fabric 42 preferably overlaps the entire end fittings to thereby provide an additional coupling means for coupling the bladder 20 and end fittings 22, 24 together.
  • the fabric 42 and bladder 20 are secured to the fittings 22, 24 by clamps 36, 38, 36', 38'.
  • the fabric 42 is constructed and arranged to defined a shape for the airbeam 12.
  • the beam 12 is curvilinear with a preselected radius of curvature.
  • the airbeam may be a straight for use as a ridge or purlin.
  • the fabric 42 is a braided fabric because these types of fabrics can be made in a tubular, seamless configuration of with a curved longitudinal axis.
  • a method of making the a airbeam 12 is shown in Figures 3-8.
  • the first step, illustrated in Figure 3 is to provide bladder 20 in a desired length, thickness and outer diameter.
  • the bladder may be made, for example of a polymeric material by extrusion.
  • the tether 40 (which has been omitted from Figure 3 for the sake of clarity) is positioned so that it extends longitudinally through the bladder 20.
  • the bladder is then filled with a granular material such as a plurality of small plastic pellets 50 without substantially changing its generally tubular shape.
  • the bladder ends are then pulled over the cylindrical section 32 of shoulders of the end fittings 22, 24 and the bladder and end fittings are temporarily coupled together by clamps 36, 38, 36', 38' ( Figure 4).
  • the bladder is now bent ( Figure 5) so that its longitudinal axis assumes a preselected curvilinear shape such as toroidal shape, an elliptical shape and so forth as required. Of course for straight airbeams the bladder is not bent.
  • a vacuum source 52 is attached to valve 28 to reduce the pressure within the bladder 20. As a result, the bladder 20 collapses over the pellets 50 to form a solid curvilinear mandrel.
  • the outer surface 54 of bladder is preferably sprayed with an aqueous solution of resin from a resin reservoir 56 ( Figure 5).
  • a resin useful for this purpose is available from Rohmtech of Malden, Massachusetts under the name of RODAPUR 8055.
  • the mandrel formed by the bladder 20 is positioned co-axially with the axis of a braiding machine 58 and is fed into the machine 58. As the mandrel advances through the braiding machine 58, the machine braids a plurality of yarns 60 about the mandrel to form the braided fabric 42. ( Figure 6).
  • clamps 36, 38, 36', 38' are removed from the mandrel, without changing the low internal pressure of the bladder. If necessary two clamps(not shown) much smaller than clamps 36, 38 may be mounted on the ends of bladder 20 to keep it secured to the end fittings while clamps 36, 38, 36', 38' are removed.
  • clamps 36, 38, 36', 38' are again mounted to secure the fabric 42 and the bladder 20 to the end fittings 22, 24.
  • One of the valves, for example valve 28 is then opened to allow air to enter into the bladder 20.
  • the valve 28 is removed from the fitting 24 and the airbeam 12 is turned with the fitting 24 pointed downward to allow the pellets 50 to fall out ( Figure 7).
  • the airbeams 12 can be rolled up into a small package and transported to the site of shelter 10.
  • the bladder 20 is inflated through one of the valves 26, 28 by air supply 74. ( Figure 8). Once the airbeam 12 is inflated, it is ready to be used to make a shelter 10. As the airbeam 12 is inflated it takes on the shape of the fabric 42.
  • the braiding process for making fabric 42 may be a conventional two dimensional triaxial process. After braiding the layers of the fabric may be impregnated more fully to insure that the lager do not delaminate.
  • a three dimensional multi-layer braiding system may also be in accordance with commonly assigned co-pending U.S. application SN 551,266 filed July 12, 1990 and entitled SOLID BRAID STRUCTURE, and related U.S. application SN 961, 885 filed January 6, 1993.
  • This system, shown in Figure 9 is formed by simultaneously braiding several layers concentrically about a common axis. Importantly, at regular intervals some of the yarns of each layer are exchanged with the yarns of an adjacent layer.
  • a multi-layer interlocked braiding system 80 for forming fabric 42 includes a first layer 83 formed of yarns 82, 84 and a second layer 87 formed of yarns 86, 88 and disposed adjacent to the first layer 83.
  • a yarn from first layer 83 is exchanged with a yarn from the second layer 87.
  • a yarn from layer 87 is exchanged with a yarn of a third layer 89 disposed adjacent to layer 87.
  • a similar yarn traveling in the opposite direction of yarn 82 creates an opposite border.
  • the several concentric layers are solidly interlocked with each other to form a strong, substantially homogeneous three dimensional fabric. Because the layers of the fabric are inherently interlocked, these layers will not delaminate and hence a bonding agent between each layer is not required.
  • the yarns used to make the fabric 42 are high performance yarn such as a polyaramid such as Kevlar®. Other suitable yarn materials include polyester, nylon, Spectra®, fiberglass or carbon fibers. As these yarns are braided over the solid curvilinear mandrel, the yarns in the longitudinal direction inherently have different lengths to form the curvilinear fabric.
  • airbeams can be constructed having an outer diameter varying from 1" to 12", and a radius of curvature of the longitudinal axis varying from 4' to 25'. Moreover these airbeams can be inflated up to 170 psi and when used to make a shelter will support a standard roofing membrane and additional loads disposed thereon such as snow.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Tents Or Canopies (AREA)
  • Air Bags (AREA)
EP94850131A 1993-07-16 1994-07-15 Poudre tressée gonflable et procédé pour sa fabrication. Withdrawn EP0647751A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US9307793A 1993-07-16 1993-07-16
US93077 1993-07-16

Publications (2)

Publication Number Publication Date
EP0647751A2 true EP0647751A2 (fr) 1995-04-12
EP0647751A3 EP0647751A3 (fr) 1995-06-28

Family

ID=22236861

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94850131A Withdrawn EP0647751A3 (fr) 1993-07-16 1994-07-15 Poudre tressée gonflable et procédé pour sa fabrication.

Country Status (6)

Country Link
EP (1) EP0647751A3 (fr)
KR (1) KR950003592A (fr)
AU (1) AU6741694A (fr)
BR (1) BR9402830A (fr)
CA (1) CA2128121A1 (fr)
ZA (1) ZA945097B (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2741373A1 (fr) * 1995-11-17 1997-05-23 Bachmann Sa Poutre gonflable destinee notamment a la realisation d'une armature d'un abri
FR2772814A1 (fr) * 1997-12-24 1999-06-25 Scebep Spironef Voute gonflable, deployable et escamotable
WO2001073245A1 (fr) * 2000-03-27 2001-10-04 Mauro Pedretti Element constitutif pneumatique
FR2938857A1 (fr) * 2008-11-26 2010-05-28 Centre Nat Rech Scient Structure gonflable etanche
AU2010100380B4 (en) * 2009-04-24 2010-07-15 Stewart, Alexander Y. A.Y.S. easy erect shelter
US9355581B2 (en) 2011-11-03 2016-05-31 Skyline Displays, Inc. Airframe display systems and methods
GB2552930A (en) * 2016-07-13 2018-02-21 Better Galaxy Ltd Inflatable pole
DE102021002234A1 (de) 2021-04-28 2022-11-03 Isabelle Kaiser Dreidimensionale, thermoplastisch geformte, aufblasbare Stützstrukturen und Verfahren zu deren Herstellung
CN116025219A (zh) * 2023-01-08 2023-04-28 广州市普格斯日用制品有限公司 一种户外帐篷的智能控温装置
EP4103801A4 (fr) * 2020-02-13 2024-04-03 Nikolaos Cangemi Tente à auvent autogonflant

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018141065A1 (fr) * 2017-02-03 2018-08-09 Dynamic Shelters Inc. Structures supportées pneumatiquement à couches multiples

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4068418A (en) * 1976-06-11 1978-01-17 Masse Jean Pierre Collapsible shelter
WO1981000125A1 (fr) * 1979-07-02 1981-01-22 A Brown Structure repliable et methode de montage
EP0085270A1 (fr) * 1982-02-01 1983-08-10 William E. Phillips Ensemble de couchage ou abri
WO1990015208A1 (fr) * 1989-06-01 1990-12-13 Stewkie Limited Structure gonflable
FR2683248A1 (fr) * 1991-10-30 1993-05-07 Becker Andre Armature tubulaire gonflable de securite pour des tentes et des articles analogues.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4068418A (en) * 1976-06-11 1978-01-17 Masse Jean Pierre Collapsible shelter
WO1981000125A1 (fr) * 1979-07-02 1981-01-22 A Brown Structure repliable et methode de montage
EP0085270A1 (fr) * 1982-02-01 1983-08-10 William E. Phillips Ensemble de couchage ou abri
WO1990015208A1 (fr) * 1989-06-01 1990-12-13 Stewkie Limited Structure gonflable
FR2683248A1 (fr) * 1991-10-30 1993-05-07 Becker Andre Armature tubulaire gonflable de securite pour des tentes et des articles analogues.

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2741373A1 (fr) * 1995-11-17 1997-05-23 Bachmann Sa Poutre gonflable destinee notamment a la realisation d'une armature d'un abri
FR2772814A1 (fr) * 1997-12-24 1999-06-25 Scebep Spironef Voute gonflable, deployable et escamotable
WO1999034078A1 (fr) * 1997-12-24 1999-07-08 S.A. Spirnoef Technologies Voûte gonflable, deployable et escamotable
US6453619B1 (en) 1997-12-24 2002-09-24 Spironef Technologies Deployable and storable inflatable building
WO2001073245A1 (fr) * 2000-03-27 2001-10-04 Mauro Pedretti Element constitutif pneumatique
US6543730B2 (en) 2000-03-27 2003-04-08 Mauro Pedretti Pneumatic structural element
AU777055B2 (en) * 2000-03-27 2004-09-30 Prospective Concepts Ag Pneumatic structural element
WO2010061079A3 (fr) * 2008-11-26 2010-08-12 Centre National De La Recherche Scientifique (C.N.R.S.) Structure gonflable etanche
FR2938857A1 (fr) * 2008-11-26 2010-05-28 Centre Nat Rech Scient Structure gonflable etanche
AU2010100380B4 (en) * 2009-04-24 2010-07-15 Stewart, Alexander Y. A.Y.S. easy erect shelter
US9355581B2 (en) 2011-11-03 2016-05-31 Skyline Displays, Inc. Airframe display systems and methods
GB2552930A (en) * 2016-07-13 2018-02-21 Better Galaxy Ltd Inflatable pole
EP4103801A4 (fr) * 2020-02-13 2024-04-03 Nikolaos Cangemi Tente à auvent autogonflant
DE102021002234A1 (de) 2021-04-28 2022-11-03 Isabelle Kaiser Dreidimensionale, thermoplastisch geformte, aufblasbare Stützstrukturen und Verfahren zu deren Herstellung
EP4092225A2 (fr) 2021-04-28 2022-11-23 Isabelle Kaiser Structures d'appui gonflables moulées de manière thermoplastique, tridimensionnelles et leur procédé de fabrication
DE102021002234B4 (de) 2021-04-28 2023-11-23 Isabelle Kaiser Dreidimensionale, thermoplastisch geformte, aufblasbare Stützstrukturen und Verfahren zu deren Herstellung
CN116025219A (zh) * 2023-01-08 2023-04-28 广州市普格斯日用制品有限公司 一种户外帐篷的智能控温装置
CN116025219B (zh) * 2023-01-08 2023-07-07 广州市普格斯日用制品有限公司 一种户外帐篷的智能控温装置

Also Published As

Publication number Publication date
AU6741694A (en) 1995-01-27
KR950003592A (ko) 1995-02-17
ZA945097B (en) 1995-02-22
BR9402830A (pt) 1995-04-04
EP0647751A3 (fr) 1995-06-28
CA2128121A1 (fr) 1995-01-17

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