WO2010051584A1 - Gazon artificiel et accessoires - Google Patents

Gazon artificiel et accessoires Download PDF

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Publication number
WO2010051584A1
WO2010051584A1 PCT/AU2009/001438 AU2009001438W WO2010051584A1 WO 2010051584 A1 WO2010051584 A1 WO 2010051584A1 AU 2009001438 W AU2009001438 W AU 2009001438W WO 2010051584 A1 WO2010051584 A1 WO 2010051584A1
Authority
WO
WIPO (PCT)
Prior art keywords
artificial turf
pile
needle
filler
ribbon
Prior art date
Application number
PCT/AU2009/001438
Other languages
English (en)
Inventor
Gary Wayne Waterford
Original Assignee
Waterford Investment Holdings Pty Limited
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
Priority claimed from AU2008905709A external-priority patent/AU2008905709A0/en
Application filed by Waterford Investment Holdings Pty Limited filed Critical Waterford Investment Holdings Pty Limited
Publication of WO2010051584A1 publication Critical patent/WO2010051584A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63K—RACING; RIDING SPORTS; EQUIPMENT OR ACCESSORIES THEREFOR
    • A63K1/00—Race-courses; Race-tracks
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C13/00—Pavings or foundations specially adapted for playgrounds or sports grounds; Drainage, irrigation or heating of sports grounds
    • E01C13/08—Surfaces simulating grass ; Grass-grown sports grounds

Definitions

  • This invention relates to an artificial surface for use as a turf.
  • the invention is particularly suited for use on horse race tracks.
  • the turf can be subject to mould growth which is exacerbated by the presence of excretions from the animals.
  • the pile tends to become flattened and/or damaged by horse hooves or machinery such as tractors.
  • an artificial turf having a pile length adapted to receive filler to a first depth, the length of the plie being such as to extend beyond the top of the filler by a sufficient length to mitigate the amount of filler thrown up during use.
  • An artificial turf having a flexible pile or a ribbon with a length of between 120 mm and 245 mm.
  • the pile or ribbon length is in the range of 165 to 245 mm.
  • the turf may also have the pile or ribbon proj ecting a distance above the top of a filler layer, where the distance above the filler layer/s is in the range between 30 and 120 mm.
  • the pile or ribbon is projecting 40 to 60 mm above the top of the filler layer/s
  • the turf can be composed of two or more different types of pile.
  • a first pile can comprise from 10% to 90% of the artificial turf.
  • a second pile can comprise from 10% to 90% of the artificial turf.
  • a first pile can be composed of a flat ribbon strand, and a second pile can be composed of a twisted ribbon strand.
  • a third pile can have an arcuate or V shaped cross section.
  • a fourth pile can be a circular strand.
  • a fifth pile can be of a KDK or a texturised nylon, a PP or a PE material.
  • One or more of the piles / ribbons may be polyethylene, or polypropylene, polyamide or monofilament yarns.
  • the piles can be of different shades or colours.
  • the circular strand can be tubular.
  • the pile can be made of a memory material.
  • the memory material can restore the original shape on exposure to sunlight or heat.
  • the pile ribbons can be made substantially of polyethylene.
  • the pile can include polyethylene based rubberising additive.
  • the pile can include an antibacterial additive material.
  • the pile can include an antifungal additive material.
  • the additive material can be free of heavy metal.
  • the pile can be sewn, tufted, or needle punched into a substrate.
  • the row spacing of the tufted in pile may be in the range of 5/16 ⁇ of an inch to one and a quarter of an inch.
  • the sewing pitch of the tufted in pile may be in the range of 100/m to 200/m.
  • the rows can be spaced at 5/S ⁇ of an inch and the sewing pitch can be 130/m.
  • the substrate can be flexible.
  • the substrate can be made of polypropylene or f ⁇ breglass.
  • the substrate can have two layers. [041] A cover layer can be applied to the substrate after the pile has been attached.
  • the cover layer can be a latex layer.
  • the cover can be water permeable.
  • Water permeation holes can be provided in the cover.
  • the cover can be attached to cushion layer.
  • the cover can be glued to the cushion layer.
  • the cushion layer may also provide a drainage function for water drainage and/or a reticulation base.
  • the cover can be glued to the cushion layer via a cobweb or open spray of adhesive.
  • the pile can be partially filled with at least one filler.
  • the filler can extend between half the length and two thirds the length of the pile.
  • the pile can be filled with two fillers.
  • a first filler can be sand.
  • a second filler can be granulated rubber or EPDM or other alternative resilient shock absorbing materials.
  • the first filler and/or the second filler may have a depth in the range of 15 to 60 mm.
  • the invention also provides a needle and/or needle extension having a length sufficiently greater than the extended length pile to permit the needle to be connected to a sewing attachment.
  • the needle extension can include a needle attachment at a first end.
  • the needle extension can have a needle bar attachment or a sewing machine attachment at a second opposed end.
  • the needle attachment can have a tapered exterior, increasing from the needle end to the machine end.
  • the needle attachment can have a cross section adapted to match the cross section of the needle.
  • the needle extension can be adapted to fit a standard needle bar.
  • the invention also provides a method of installing an artificial turf using a filler application tray, the turf having a pile, substrate and cushion base, the method including the steps of:
  • FIGURE 1 is a schematic illustration of an artificial turf arrangement according to an embodiment of the invention.
  • FIGURE 2 illustrates a needle adapted for manufacturing known artificial turf
  • FIGURE 3 illustrates a needle arrangement having a needle extension according to an embodiment of the invention.
  • FIGURE 4 is a photographic illustration of artificial turf according to an embodiment of the invention.
  • FIGURE 5 is a view of the underside of a sample of artificial turf of FIG 4 according to an embodiment of the invention.
  • FIGURE 6 is a schematic illustration of a filler application tray according to an embodiment of the invention.
  • artificial turf has a pile length adapted to receive filler to a first depth, the length of the pile being such as to extend beyond the top of the filler by a sufficient length to mitigate the amount of filler thrown up during use.
  • the pile is FIG 1 is a schematic illustration of a part of an artificial turf installation according to an embodiment of the invention.
  • the artificial turf includes flat ribbons 1.006 and twisted ribbons 1.008 sewn into a substrate 1.002.
  • the fibres/piles/ribbons can be polyethylene, or polypropylene, polyamide or monofilament yarns.
  • the pile / ribbon may be of a KDK or a texturised nylon, a PP or a PE.
  • a cover 1.004 covers the stitching 1.010.
  • the cover can be latex or polyurethane.
  • the cover is glued to a water drainage and reticulation base 1.012 which also acts a cushion.
  • Suitable glues include FabGrip SG266 Indoor/Outdoor Synthetic Grass Adhesive from Holdfast Adhesives (Aust) Pty Ltd, and 485 Outdoor grass Adhesive from Nexus Adhesives Pty Ltd or any that a person skilled in the art may design or select from.
  • the cushion can be formed of a resilient looped pile adapted to the outdoors environment.
  • the cushion underlay can be rolled out from a first roller and the artificial turf rolled out from a second roller while the glue is applied at the interface. The glued assembly is then dried, for example by using heat and rolled for use.
  • the filler includes a first lower layer of sand 1.014, and an upper layer of granulated rubber 1.016.
  • the upper filler layer 1.016 may alternatively be EPDM or other alternative resilient shock absorbing materials in an appropriate form for a filler.
  • the depth of the sand layer 1.024 can be in the range of 15 mm to 60 mm, and is preferably of the order of 40 mm.
  • the grain size of the sand can be between 1 mm and 2 mm particle size.
  • the rubber layer 1.016 can be of the order of 15 mm to 60 mm in depth 1.022, preferably of the order of 40 mm.
  • the granules of rubber can be of the order of 2 mm in particle size.
  • the sand is applied first, and may additionally act as a ballast.
  • the pile can project a distance between 30 mm and 120 mm, preferably 50 mm or in other embodiments in the preferred range 40 to 60 mm or alternatively 30 to 80 mm, above the top of the filler layer/s 1.014, 1.016.
  • the pile height 1.020 or ribbon length 1.020 above the substrate 1.002 can be between 120 mm and 245 mm in length, preferably 130 mm or in other embodiments in the preferred range 165 to 245 mm or alternatively 120 to 165 mm.
  • the turf can be composed of one or more different types of pile and/or ribbon / strand.
  • the piles can have different cross sectional profiles and/or ribbon lengths.
  • a first pile can be a flat ribbon
  • a second pile can be formed from a flat twisted into a helix.
  • the twisted ribbon has a high twist so that the edges of the twists are contiguous. The twisted ribbon thus forms a tube with a spiral split.
  • the pile can be made of a single type of strand/ribbon.
  • a third pile may have a ribbon/strand with an arcuate or V shaped cross section, and a fourth pile can be a circular strand.
  • the circular strand/ribbon can be tubular.
  • a fifth pile may be of a KDK or a texturised nylon, a PP, a PE material or any other combination as described earlier.
  • a first pile can comprise from about 10% to 100% of the artificial turf.
  • a second pile can comprise from about 10% to 90% of the artificial turf.
  • the colouration of the piles can be selected to provide preferred appearances.
  • the piles can be of different shades or colours. Different colours and patterns can also be used to incorporate images or logos in the surface.
  • the pile can be made of a memory material, which is able to restore the original shape on exposure to sunlight or heat or some other restoring treatment.
  • the pile ribbons can be made substantially of polyethylene, and can include polyethylene based rubberising additive.
  • the pile can include an antibacterial additive material and/or antifungal additive material.
  • the additive material is free of heavy metal.
  • a filler layer may also have an additive with suitable antibacterial and/or antifungal properties.
  • FIGs 4 and 5 illustrate a sample of the artificial turf according to an alternate embodiment of the invention.
  • the substrate 4.002 and cover 4.004 support two types of pile, a flat ribbon, such as 4.006, and a highly twisted ribbon, such as 4.008.
  • the base 4.002, 4.004 overlies a cushion and water drainage layer 4.012.
  • the combined base with cushion/drainage layer 4.012 can have a greater depth than known systems.
  • the depth of the base is of the order of 55 mm.
  • An example of a cushion / drainage layer is PCT patent application WO 2005/042846 "Drainage for Sports Surface", the contents of which are incorporated herein by reference.
  • FIG 5 illustrates a stitching pattern, of the tufted in ribbon, standing out in relief on the base cover 5.004.
  • a first row of stitching 5.050 maybe a flat ribbon pile, while a second row of stitching 5.052 may be a twisted ribbon pile.
  • the row spacing may be in the range of 5/ 16 th of an inch to one and a quarter of an inch, depending on the particular yarn / ribbon / strand being used.
  • the sewing pitch may be in the range of 100/m to 200/m.
  • the rows can be spaced at 5/8* of an inch and the sewing pitch can be 130/m.
  • the strands/ribbons can be brushed with a polypropylene bristle rotary brush to bring up the pile.
  • the substrate 4.002 can be made of a strong resilient sheet material such as Superlock primary backing sheet.
  • the material can be woven.
  • the material can be polypropylene or fibreglass.
  • the substrate can have two or more layers.
  • a base cover 5.004 can be applied to the substrate after the pile has been attached.
  • the base cover can be a latex layer creating a superlock of the tufted in ribbon to the primary backing substrate / sheet.
  • the cover can be water permeable, for example by having water permeation holes provided in the substrate and base cover.
  • the base cover 5.004 can be attached to cushion layer 4.012.
  • the base cover can be glued to the cushion layer, preferably using a cobweb or open spray of adhesive to avoid blocking the water permeation or drain apertures.
  • the needle used for the known artificial turf is of insufficient length. Accordingly, according to an embodiment of the present invention, a longer needle, or a needle with a needle extension is provided. However, the extended length may make the extended needle or the needle extension prone to failure.
  • an embodiment of the invention also provides a needle or needle extension having a length sufficiently greater than the extended length pile to permit the needle to be connected to a sewing attachment.
  • the pile can be sewn or needle punched into a substrate.
  • the substrate is flexible.
  • FIG 2 illustrates a typical needle used for attaching strands or piles to a base for manufacturing artificial turf.
  • the needle has a tip 2.031, a strand/ribbon aperture 2.033, a shaft 2.035, and an attachment end 2.037.
  • FIG 3 schematically illustrates a needle extension 3.034 attached to an adapted needle 3.032.
  • the needle extension 3.034 has a sewing machine / needle bar attachment 3.038 adapted to connect the needle 3.032 to a needle bar 3.040 which is adapted to carry a plurality of needles.
  • the needle bar 3.040 and/or sewing machine attachment may be as required to connect or interact with a suitable sewing machine (not shown)
  • the needle and extension 3.032, 3.034 needs to be longer than the pile / ribbon length so it can be attached to the sewing machine. Because the needle 3.032, 3.034 has an extended length, it is more prone to failure than a standard length needle 2.032 of the prior art.
  • the needle 3.032 has a tapered exterior / shaft 3.035, increasing from the needle tip 3.031 to the needle extension 3.034 and to the needle bar 3.040 / sewing machine end.
  • the needle 3.032, 3.034 can have a cross section adapted to match the corresponding cross section/s as required of a standard needle.
  • the needle extension 3.034 includes a needle attachment 3.036 at a first end and a needle bar attachment 3.038 at the other end.
  • the needle attachment 3.036 can be a threaded or other suitable attachment 3.036.
  • the body of the needle extension 3.034 may also be tapered from the shank 3.035 of the needle extension 3.034 to the needle bar 3.040.
  • the needle bar attachment 3.038 may also be stepped down to fit the pre-existing needle bar attachment 3.038 of the needle bar 3.040.
  • the needle attachment 3.038 may also be adapted to fit a standard needle bar.
  • the adapted needle 3.032 and needle extension 3.034 may also be made of materials to improve their durability and performance. For example high tensile steel and/or composites/alloys of other suitable metals.
  • the pile can be partially filled with at least one filler.
  • the filler can extend between half the length and two thirds the length of the pile.
  • the pile may also be filled with two or more fillers.
  • a first filler can be sand, and a second filler can be granulated rubber, hi an alternate embodiment a third filler may be a suitable binder for the one or more of the other fillers to further improve performance of the artificial turf; particularly in reducing the amount of the f ⁇ ller/s thrown up or dislodged during use..
  • the current mode of applying a filler is to have a truck, such as a tip-track and to open the tail gate of the truck tray a small distance while driving the track at a slow speed, so the filler falls at a controlled rate onto the already installed artificial turf.
  • a truck such as a tip-track
  • the filler falls at a controlled rate onto the already installed artificial turf.
  • This operation is difficult to control, so the filler may be uneven, or too shallow or too deep.
  • the invention also provides an apparatus and a method for applying the filler/s to the artificial turf.
  • a tray 6.060 adapted to be filled with a filler to a predetermined depth to this end, the tray has a base 6.070, and side walls 6.062, 6.064, 6.066, 6.068 and a base 6.070.
  • the solid base 6.070 is adapted to be removed, by, for example, being slid or pivoted, from the tray 6.060 when the tray is filled with the required level of filler.
  • a sieve or grid 6.072 is located within the tray 6.060 above the tray base 6.070, so that, when the tray base 6.070 is moved, the filler will be delivered in a controlled amount to an artificial turf surface.
  • the height of the side walls can be chosen so to be proportional to, or equal to, the required depth of filler/s.
  • the tray may be mounted on wheels such as 6.076 so that the filler tray may be towed.
  • the wheels 6.076 can be of the balloon type or another low impact type to limit the effect on the artificial turf.
  • the grid or sieve may be mounted below the movable base.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Structures (AREA)

Abstract

On décrit un gazon artificiel présentant une hauteur de brins (1.020) suffisante pour recevoir au moins deux charges (1.014, 1.016). Le velours ou ruban (1.006, 1.008) présente une longueur suffisante s’étendant au-delà de la ou des charges (1.014, 1.016) pour limiter la quantité de charge projetée pendant l’utilisation du gazon artificiel. Ledit gazon artificiel peut également comprendre un substrat (1.002) dans lequel les rubans (1.006, 1.008) sont touffetés. Une couche (1.004) de couverture appliquée au dos du substrat peut bloquer les rubans / brins (1.006, 1.008) touffetés en place. Au-dessous de la couche (1.004) de couverture et du substrat (1.002), on peut utiliser une sous-couche (1.012) de rembourrage / de drainage de l’eau / de réticulation.
PCT/AU2009/001438 2008-11-05 2009-11-05 Gazon artificiel et accessoires WO2010051584A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2008905709 2008-11-05
AU2008905709A AU2008905709A0 (en) 2008-11-05 Artificial Turf and Accessories

Publications (1)

Publication Number Publication Date
WO2010051584A1 true WO2010051584A1 (fr) 2010-05-14

Family

ID=42152389

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2009/001438 WO2010051584A1 (fr) 2008-11-05 2009-11-05 Gazon artificiel et accessoires

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WO (1) WO2010051584A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2274997A (en) * 1993-02-13 1994-08-17 Fibresand Ltd Sports surfaces
US5958527A (en) * 1998-09-21 1999-09-28 Fieldturf Holdings, Inc. Process of laying synthetic grass
WO2002022960A1 (fr) * 2000-09-15 2002-03-21 Tapijtfabriek H. Desseaux N.V. Procédé de construction d'une pelouse artificielle et pelouse artificielle ainsi construite
US20030182855A1 (en) * 2000-09-05 2003-10-02 Prevost Jean Artificial grass for landscaping
US20050042032A1 (en) * 2001-12-21 2005-02-24 Coevin Technologies, Llc Method of constructing a multi-layered athletic field
US20070160800A1 (en) * 2003-04-24 2007-07-12 Reddick Randolph S Filler for artificial turf system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2274997A (en) * 1993-02-13 1994-08-17 Fibresand Ltd Sports surfaces
US5958527A (en) * 1998-09-21 1999-09-28 Fieldturf Holdings, Inc. Process of laying synthetic grass
US20030182855A1 (en) * 2000-09-05 2003-10-02 Prevost Jean Artificial grass for landscaping
WO2002022960A1 (fr) * 2000-09-15 2002-03-21 Tapijtfabriek H. Desseaux N.V. Procédé de construction d'une pelouse artificielle et pelouse artificielle ainsi construite
US20050042032A1 (en) * 2001-12-21 2005-02-24 Coevin Technologies, Llc Method of constructing a multi-layered athletic field
US20070160800A1 (en) * 2003-04-24 2007-07-12 Reddick Randolph S Filler for artificial turf system

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