EP1944232A2 - Material zur Herstellung eines Drachens oder eines Flügels und ein Drache oder ein Flügel mit dem Material - Google Patents

Material zur Herstellung eines Drachens oder eines Flügels und ein Drache oder ein Flügel mit dem Material Download PDF

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Publication number
EP1944232A2
EP1944232A2 EP08250157A EP08250157A EP1944232A2 EP 1944232 A2 EP1944232 A2 EP 1944232A2 EP 08250157 A EP08250157 A EP 08250157A EP 08250157 A EP08250157 A EP 08250157A EP 1944232 A2 EP1944232 A2 EP 1944232A2
Authority
EP
European Patent Office
Prior art keywords
laminated material
kite
strands
wing
laminated
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Withdrawn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
EP08250157A
Other languages
English (en)
French (fr)
Other versions
EP1944232A3 (de
Inventor
Xiao Wen c/o Neil Pryde Limited 20/F YKK Gu
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.)
Neil Pryde Ltd
Original Assignee
Neil Pryde Ltd
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 Neil Pryde Ltd filed Critical Neil Pryde Ltd
Publication of EP1944232A2 publication Critical patent/EP1944232A2/de
Publication of EP1944232A3 publication Critical patent/EP1944232A3/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H9/00—Marine propulsion provided directly by wind power
    • B63H9/04—Marine propulsion provided directly by wind power using sails or like wind-catching surfaces
    • B63H9/06—Types of sail; Constructional features of sails; Arrangements thereof on vessels
    • B63H9/067—Sails characterised by their construction or manufacturing process
    • B63H9/0678—Laminated sails
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H8/00—Sail or rigging arrangements specially adapted for water sports boards, e.g. for windsurfing or kitesurfing
    • B63H8/10—Kite-sails; Kite-wings; Control thereof; Safety means therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H9/00—Marine propulsion provided directly by wind power
    • B63H9/04—Marine propulsion provided directly by wind power using sails or like wind-catching surfaces
    • B63H9/06—Types of sail; Constructional features of sails; Arrangements thereof on vessels
    • B63H9/067—Sails characterised by their construction or manufacturing process

Definitions

  • the current invention relates to kites and to flying wings, and more particularly to materials for fabrication of a kite and to kites or wings incorporating the material.
  • Kitesurfing is an extreme water, or snow, sport which utilizes a large size traction kite to pull a board rider.
  • the kite has an inflatable frame structure to maintain its aerodynamic shape.
  • this inflatable structure provides for floatation and re-launching since water is the primary environment of kitesurfing.
  • the sport is roughly 20 years old and evolved from "buggy racing" which is a sport that utilizes a ram air type kite to pull a 3 wheeled buggy along beaches. The re-launching of ram air kites is nearly impossible due to the fact that they collapse upon impact with the ground.
  • the inflatable structure was developed to keep the kites in a shape close to their intended flying shape and to provide a means of easy re-launch once it had been in contact with the land or water.
  • the kites were combined with a surfboard or snowboard and the sport of kitesurfing evolved.
  • the inflatable structure usually the kite's "leading edge” and “struts" are typically made from a woven polyester material having a weight of approximately 140 to 170 gram per square meter (gsm).
  • the kite canopy is typically made from lightweight woven Nylon or Polyester spinnaker material having a weight of approximately 50 gsm. The canopy is sewn together using typical yacht spinnaker sewing techniques utilizing either a straight stitch or zigzag stitching or a combination of both.
  • nylon and polyester canopy materials are strong and easy to manufacture they have several disadvantages.
  • the first disadvantage is that since these materials are woven the sufferer from elongation or stretching. Elongation makes designing and maintaining the aerodynamic properties of a kite difficult and limits the performance actually obtainable from a particular aerodynamic shape than if the kite were made from more stable materials. In an attempt to avoid elongation the materials are tightly woven and are stabilized with a resin finish. This provides good control of elongation along the warp and weft directions, but bias elongation is still very excessive. Additionally, elongation properties of the material worsen with time as the finish of the material deteriorates.
  • nylon and polyester canopy materials are also disadvantages.
  • their supply is limited to a small quantity of specialized fabric manufacturers.
  • fabric manufacturers have had difficulty in keeping up with demand for canopy materials.
  • Most of the kite manufacturing takes place in China and most suppliers of the woven canopy materials are located in other parts of Asia, typically Japan, or Europe. In most cases this makes the supply and export price subject to currency fluctuations.
  • kites that ameliorates the above limitations and disadvantages and to provide kites or wings incorporating the material. It is also an object of the present invention to provide a material for fabrication of kites and kites or wings incorporating the material that offers kitesurfing manufactures a useful alternative to current canopy materials.
  • a laminated material for fabrication of a kite comprising a layer of thin flexible film laminated to a layer of stretch resistant reinforcing material.
  • layers of the thin flexible film sandwich the layer of stretch resistant reinforcing material wherein the thin flexible film is Polyethylene Terephthalate.
  • the thin flexible film has a thickness of the range of 0.01 mm to 0.1 mm.
  • the film has a thickness of the range of 0.01mm to 0.03mm.
  • the film has an aluminium coating.
  • the stretch resistant reinforcing material is selected from a group comprising fibreglass mesh, strands of polyester yarn, loosely woven scrim or unidirectional fibres.
  • the stretch resistant reinforcing material comprises stretch resistant yarn arranged in first and second groups of parallel strands with the strands in the first group crossing the strands in the second group.
  • the first and second groups of parallel strands comprise 1 or more strands per inch.
  • the first and second groups of parallel strands comprise 2 strands per inch.
  • the inner layer further comprises a third group of parallel warp strands, and wherein the first and second groups of parallel strands are arranged at an angle to the warp strands.
  • the third group of parallel warp strands comprise 1 to 8 strands per inch.
  • the third group of parallel warp strands comprise 2 to 4 strands per inch.
  • kite or wing made from a plurality of assembled panels wherein at least one panel comprises the laminated material of any one of claims 1 to 11.
  • the panel of laminated material is joined to other panels of the laminated material or of a different material at seams reinforced with a tape layer.
  • leading and trailing edges and tips of the kite or wing are reinforced with a woven nylon or polyester fabric attached to the laminated material.
  • kite or wing comprising a leading edge strut and a plurality of rib struts supporting a flexible envelope wherein at least a portion of the flexible envelope comprises the laminated material defined above.
  • the flexible envelope comprises a plurality of panels located between the rib struts and extending from the leading edge strut towards a trailing edge of the kite and wherein at least one of the panels comprises the laminated material.
  • portions or panels of the kite or wing bearing a load or stress are reinforced with a woven nylon or polyester fabric attached to the laminated material.
  • the laminated material comprises two outer layers 1, 2 of thin, non woven, flexible film sandwiching an inner layer 3 of stretch resistant reinforcing material.
  • the non woven flexible film is 0.02 millimetres thick aluminium coated Polyethylene Terephthalate (PET) film
  • the reinforcing material comprises stretch resistant polyester yarn arranged in first and second groups of parallel strands 4, 5 with the strands in the first group crossing the strands in the second group at an angle of between 30 and 60 degrees.
  • the layers 1, 2, 3 are laminated together in a typical laminating process using BOSTIK solvent base polyester resin glue. The material is easily manufactured, low cost and has high strength and low elongation in all directions.
  • the outer layers of flexible film 1, 2 may be any suitable non woven film material. Typical examples include, but are not limited to, non woven polyester film, metallic film, color pattern screening films, or any combination of Polyester, Thermoplastic Polyurethane (TPU), Polyurethane, Polyethylene, Tedlar, or Polypropylene film.
  • TPU Thermoplastic Polyurethane
  • the thin flexible film will be in the range of 0.01 to 0.1 millimetres thick depending on the desired strength, stability and weight characteristic of the kite design. For lightweight performance kites the film will typically be between 0.01 and 0.03 millimetres thick.
  • the reinforcing material comprises stretch resistant polyester yarn arranged in first and second groups crossing at an angle of between 30 and 60 degrees.
  • the reinforcing layer may comprise any other low weight high strength yarns. Typical examples include, but are not limited to, Ultra high molecular weight polyethylene (UHMWPE) yarn, Polyaramide yarn, fibreglass mesh, strands of polyester yarn, woven scrim, unidirectional fibres or an "X" pattern or very loosely woven yarns made usually from polyester, nylon, carbon or Arimid fibres.
  • UHMWPE Ultra high molecular weight polyethylene
  • the groups 4, 5 of strands may cross at an angle of anywhere from 10 to 80 degrees.
  • the first and second groups of parallel strands 4, 5 comprise 2 strands per inch, but this is not critical to the invention and may be more or less strands per inch.
  • there is also a third group of parallel warp or weft strands 6 comprising 2 strands per inch in the first pattern 7 and 4 strands per inch in the second pattern 8. Again, this is not critical to the invention and may be more or less strands per inch.
  • the layers 1, 2, 3 can be laminated together using a suitable glue, which should be readily determinable by those skilled in the art. Typical examples of suitable glue include BOSTIK solvent base polyester resin glue or water based 1001 glue from National Starch.
  • the new material comprises three laminated layers.
  • the material may comprises only a single layer of film laminated to a stretch resistant reinforcing material.
  • an example of a kite or wing incorporating the material has a leading edge strut 10 and a plurality of rib struts 11 supporting a flexible envelope 12.
  • the flexible envelope 12 extends spanwise between two wing tips 19 and chordwise between the leading edge strut and a trailing edge 18.
  • the leading edge strut 10 and plurality of rib struts 11 are made from woven polyester material as is known in the art.
  • the flexible envelope 12 comprises a plurality of panels 13 located between the rib struts 11 and extending from the leading edge strut 10 towards the trailing edge 18. In the preferred embodiment of a kite of the invention all of the flexible envelope panels 13 are made of the new laminated material.
  • the seams 14 are reinforced with tape 20 and stitched as described later with reference to Figure 6 .
  • the trailing edge 18 is provided with a strip 15 of reinforcing material to prevent rips or tears under load.
  • kite only one of the panels 13 might be the new laminated material described above, or the whole kite may be made of the laminated material.
  • any part or panel of the kite bearing a load or under stress (such as the struts, leading and trailing edges, wing tips and seams) is preferably reinforced with a woven nylon or polyester fabric attached to the laminated material 12.
  • the panels 13 can be framed in woven nylon or polyester fabric to strengthen edges of the panels bearing additional load and stress.
  • the new material may be joined along seams 14 using a variety of techniques, for example stitching, gluing, adhesive tape or welding.
  • a seam glued, taped or welded can additionally be reinforced with stitching.
  • Figures 6 through 8 illustrate various joining techniques.
  • two panels 21, 22 are joined by stitching 23 with reinforcing tape 20 in the top and bottom of the seam.
  • Figure 7 the two panels 21, 22 are joined with a layer 24 of glue or adhesive tape.
  • the two panels 21, 22 are joined with a layer 24 of glue or adhesive tape, and further reinforced by stitching 23 with reinforcing tape 20 in the top and bottom of the seam.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Laminated Bodies (AREA)
  • Toys (AREA)
EP08250157A 2007-01-12 2008-01-14 Material zur Herstellung eines Drachens oder eines Flügels und ein Drache oder ein Flügel mit dem Material Withdrawn EP1944232A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HK07100476 2007-01-12

Publications (2)

Publication Number Publication Date
EP1944232A2 true EP1944232A2 (de) 2008-07-16
EP1944232A3 EP1944232A3 (de) 2010-02-24

Family

ID=39345490

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08250157A Withdrawn EP1944232A3 (de) 2007-01-12 2008-01-14 Material zur Herstellung eines Drachens oder eines Flügels und ein Drache oder ein Flügel mit dem Material

Country Status (3)

Country Link
EP (1) EP1944232A3 (de)
CN (1) CN101487192A (de)
DE (1) DE202008017674U1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITUD20120190A1 (it) * 2012-11-13 2014-05-14 Cofib Compagnia Fiduciaria Di Beni S P A Vela integrale e relativo procedimento di realizzazione

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103405936A (zh) * 2013-08-29 2013-11-27 朱家祥 一种用碳素纤维材料制作的风筝骨架
DE102019129493A1 (de) * 2019-10-31 2021-05-06 Boards & More Gmbh Kite und Flügelrigg

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2541327A1 (en) * 1982-10-25 1984-08-24 Sotton Liliane Sail for nautical craft, gliders and the like
GB9307184D0 (en) * 1993-04-06 1993-05-26 Skystreme Uk Ltd Inflatable kite arrangement
US6622648B2 (en) * 2001-04-14 2003-09-23 Aaron Kiss Sail and method of manufacture thereof
ITAN20020051A1 (it) * 2002-11-08 2004-05-09 Studio Merani Di Merani Michele E C Sas Vela tridimensionale in struttura laminata e relativo
FR2868752A1 (fr) * 2004-04-09 2005-10-14 Pascal Francis Raymo Rossignol Materiaux composites pour la confection de voiles et voiles realisees avec ce type de materiaux

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITUD20120190A1 (it) * 2012-11-13 2014-05-14 Cofib Compagnia Fiduciaria Di Beni S P A Vela integrale e relativo procedimento di realizzazione
WO2014076540A1 (en) * 2012-11-13 2014-05-22 Cofib Compagnia Fiduciaria Di Beni Spa Integral sail and corresponding method of production
US10329003B2 (en) 2012-11-13 2019-06-25 G.B.L. Fiduciaria S.P.A. Integral sail and corresponding method of production

Also Published As

Publication number Publication date
EP1944232A3 (de) 2010-02-24
DE202008017674U1 (de) 2010-03-25
CN101487192A (zh) 2009-07-22

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