EP3660215B1 - Revetement de gazon artificiel - Google Patents

Revetement de gazon artificiel Download PDF

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Publication number
EP3660215B1
EP3660215B1 EP19211948.5A EP19211948A EP3660215B1 EP 3660215 B1 EP3660215 B1 EP 3660215B1 EP 19211948 A EP19211948 A EP 19211948A EP 3660215 B1 EP3660215 B1 EP 3660215B1
Authority
EP
European Patent Office
Prior art keywords
less
beads
sheet
coating
preferentially
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.)
Active
Application number
EP19211948.5A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3660215A1 (fr
Inventor
François MOUCHET
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.)
Intermas Nets SA
Original Assignee
Intermas Nets SA
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 Intermas Nets SA filed Critical Intermas Nets SA
Publication of EP3660215A1 publication Critical patent/EP3660215A1/fr
Application granted granted Critical
Publication of EP3660215B1 publication Critical patent/EP3660215B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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

  • the invention relates to a lawn covering, in particular an artificial grass covering.
  • An aim of the present invention is to meet, at least partially, this need.
  • the invention provides, for this purpose, an artificial turf covering defined in claim 1.
  • this coating makes it possible to effectively drain rainwater so that it does not stagnate in the coating.
  • the support web comprises a top sheet attached to the mesh, permeable to rainwater.
  • the support sheet forms a single piece.
  • its positioning is made simpler and does not require calling in a professional. It can also be in several parts.
  • the top sheet and / or the bottom sheet may initially be separated from the mesh.
  • the support web is flexible, that is to say that it can be wound on itself, in the form of a roll, without breaking.
  • the direction of thickness is the direction of the smallest dimension of the coating. It is therefore perpendicular to the ground when said coating is in its service position, that is to say positioned on a substantially flat ground and so as to receive the rain.
  • a sheet is said to be “permeable” when, in its service position, it can be crossed by rainwater which falls on the coating.
  • the figures 1 and 2 show a covering 10 of artificial grass according to the invention covering the ground G.
  • the covering comprises a layer of artificial grass 12 covering a support sheet 14 forming a buffer between the ground and the layer of grass.
  • the coating is flexible enough to form a roll. It is therefore particularly advantageous for the layer of artificial turf and the support sheet to be flexible enough to allow such winding without deteriorating. Thus, it is particularly easy to move the coating.
  • the layer of artificial grass is disposed in a removable manner on the support sheet. Thus, it is possible to move these two parts of the coating independently of one another.
  • the layer of artificial grass is formed of a substrate 16 in contact with the support sheet 14 and on which are fixed blades 18 forming blades of artificial grass, preferably of polymer material, preferably of plastic, preferably treated to resist to ultraviolet rays.
  • the layer of artificial grass preferably comprises strands of polyethylene, preferably substantially rectilinear, strands of polypropylene, preferably crimped, and / or strands of polyamide.
  • the total height of this layer may be greater than 20 mm, preferably greater than 30 mm and / or less than 50 mm, preferably less than 40 mm.
  • the basis weight of this layer may be greater than 1000 g / m 2 , preferably greater than 1500 g / m 2 and / or less than 2500 g / m 2 , preferably less than 2000 g / m 2 .
  • the substrate is crossed in the direction of the thickness of the substrate by drainage holes 15.
  • these drainage holes allow rainwater to pass through the layer of artificial grass 12 and to reach the support. 14.
  • the substrate is formed, depending on the direction of the thickness of the substrate, of a primary backing sheet, preferably of a polymeric material, preferably of plastic, preferably of polypropylene, preferably made of polypropylene treated to resist ultraviolet rays, preferably covered with a latex coating, on which the strands 18 are woven, and a secondary backing sheet, preferably of polymer material, preferably of polyurethane and / or of polypropylene, preferably treated to resist UV rays, preferably covered with a latex coating.
  • the height of the substrate may be greater than 1 mm, preferably greater than 1.5 mm, and / or less than 4 mm, preferably less than 3 mm.
  • the support web comprises, preferably consists of, depending on the direction of the thickness of the web, a lower sheet 20 in contact with the ground, a top sheet 22 permeable to rainwater in contact with the layer of artificial grass 12, and a mesh 24 permeable to rainwater interposed between said sheets.
  • the sheets are attached to the mesh by gluing.
  • the sheets are fixed at the level of bonding points 25 spaced from each other by at least 1 cm, preferably at least 2 cm, preferably at least 3 cm and / or less than 5 cm, preferably less than 4 cm.
  • the positioning of the gluing points makes it possible to fix the mesh to the sheets while allowing the coating to retain sufficient flexibility to be easily rolled up or folded.
  • the bonding points are at the corners of the mesh of the mesh.
  • the lower sheet is permeable to rainwater. This allows rainwater to pass through the coating and reach the ground. This arrangement is particularly advantageous when the ground on which the coating is placed can absorb rainwater, for example when the coating is located on earth or on sand.
  • the lower sheet 20 comprises a nonwoven, preferably treated to resist ultraviolet rays, consisting of intermingled fibers, preferably of a polymeric material, preferably plastic, preferably polypropylene.
  • the thickness of this sheet may be greater than 0.2 mm, preferably greater than 0.4 mm and / or less than 1.5 mm, preferably less than 1 mm.
  • the basis weight of this sheet may be greater than 60 g / m 2 , preferably greater than 70 g / m 2 and / or less than 100 g / m 2 , preferably less than 90 g / m 2 .
  • This sheet can in particular be produced by calendering.
  • the upper sheet 22 comprises a non-woven fabric, preferably treated to resist ultraviolet rays, consisting of intermingled fibers, preferably of a material.
  • polymer preferably plastic, preferably polypropylene.
  • the thickness of this sheet may be greater than 0.5 mm, preferably greater than 0.7 mm and / or less than 2 mm, preferably less than 1.5 mm.
  • the basis weight of this sheet may be greater than 80 g / m 2 , preferably greater than 100 g / m 2 , preferably greater than 110 g / m 2 and / or less than 150 g / m 2 , preferably less than 130 g / m 2 .
  • the upper sheet thus forms a filter making it possible to effectively retain waste and macrometric particles.
  • This sheet can in particular be shaped by calendering or by a baking process.
  • the mesh consists of a set of meshes 34, preferably of general diamond shape, preferably evenly distributed, preferably of a polymeric material, preferably of plastic, preferably of high polyethylene. density.
  • the surface weight of this mesh may be greater than 300 g / m 2 , preferably greater than 400 g / m 2 and / or less than 800 g / m 2 , preferably less than 600 g / m 2 .
  • the surface weight of a network of beads is greater than 100 g / m 2 , preferably greater than 200 g / m 2 and / or less than 400 g / m 2 , preferably less than 300 g / m 2 .
  • the network of lower beads and the network of upper beads have the same basis weight.
  • the upper and lower networks are superimposed on each other. Seen from the front, the upper and lower networks thus define the diamond-shaped meshes, the lower beads being fixed to the upper beads at the corners of the diamonds.
  • the lower network forms lower flow passages 28, each lower flow passage 28 being delimited laterally by two lower beads 26 adjacent. These corridors allow the rainwater to be carried away towards two first outer edges of the opposing grid.
  • the flow is not hampered by the upper beads, at least as long as the height of the water does not exceed the height of the lower beads.
  • the lower beads have a height (measured according to the direction of the thickness of the coating) and / or a width greater than 1 mm, preferably greater than 1.5 mm, and / or less than 4 mm, preferably less than 3 mm.
  • the distance between any two adjacent lower beads is greater than 0.5 cm, preferably greater than 1 cm and / or less than 4 cm, preferably less than 2 cm.
  • the lower beads are fixed to the upper beads by local melting of material.
  • all the beads are made of the same material.
  • the mesh can in particular be produced by extrusion. All the manufacturing processes for monobloc grids made of polymer material can be envisaged.
  • the upper network forms upper flow corridors 32, each upper flow passage 32 being delimited laterally by two upper beads 30 adjacent. These corridors make it possible to carry the rainwater towards two second outer edges of the opposing grid once the height of the water has exceeded the height of the lower beads. These two outer edges are preferably different from the two outer edges towards which the lower flow passages open.
  • the presence of a network of upper beads makes it possible to accelerate the drainage of the water when the height of the water exceeds the network of lower beads 26.
  • the screen thus provides drainage at two speeds.
  • the water In the event of light rain, the water is mainly drained by the lower drains, towards two first edges of the coating.
  • water In the event of heavy rain, water is also drained through the upper drainage channels, towards two second edges of the coating.
  • the upper beads have a height (measured according to the direction of the thickness of the coating) and / or a width greater than 1 mm, preferably greater than 1.5 mm, and / or less than 4 mm, preferably less than 3 mm.
  • the distance between any two adjacent upper beads is greater than 0.5 cm, preferably greater than 1 cm and / or less than 4 cm, preferably less than 2 cm.
  • the distance between any two adjacent upper beads is the same as the distance between any two adjacent lower beads.
  • the upper sheet and the lower sheet are fixed to the mesh by means of bonding points 25, these points are located at the level of points where an upper bead 30 is in contact with a lower bead 26.
  • point bonding can advantageously allow flow between a sheet and a bead of the mesh in contact with the sheet.
  • the mesh can comprise more than two networks of beads.
  • any form of mesh can be envisaged without however departing from the scope of the present application.
  • the coating comprises more than one bottom sheet and / or more than one top sheet. It is also possible that one or more intermediate layers or sheets are located between the mesh and the upper sheet, between the mesh and the lower sheet and / or between the upper sheet and the layer of artificial turf.
  • the bottom sheet and / or the top sheet can comprise or be made of a woven fabric fabric, preferably treated to resist ultraviolet rays, made of woven fibers, preferably of a polymeric material, preferably of plastic, of preferably polypropylene.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Structures (AREA)
  • Laminated Bodies (AREA)
EP19211948.5A 2018-11-29 2019-11-27 Revetement de gazon artificiel Active EP3660215B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1872051A FR3089237B1 (fr) 2018-11-29 2018-11-29 Revêtement de gazon artificiel

Publications (2)

Publication Number Publication Date
EP3660215A1 EP3660215A1 (fr) 2020-06-03
EP3660215B1 true EP3660215B1 (fr) 2022-01-05

Family

ID=67262360

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19211948.5A Active EP3660215B1 (fr) 2018-11-29 2019-11-27 Revetement de gazon artificiel

Country Status (3)

Country Link
EP (1) EP3660215B1 (es)
ES (1) ES2909426T3 (es)
FR (1) FR3089237B1 (es)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3795180A (en) * 1969-02-26 1974-03-05 Conwed Corp Plastic net deck surface and drainage unit
WO1989001076A1 (en) * 1987-07-23 1989-02-09 Noel Peter John Mogford Turf surfaces
JPH05239759A (ja) * 1992-02-21 1993-09-17 Tamapatsuku Kk 人工芝
US7858148B2 (en) * 2003-04-24 2010-12-28 Usgreentech, L.L.C. Filler for artificial turf system
US7470094B2 (en) * 2005-11-10 2008-12-30 Gse Lining Technology, Inc. Geonet for a geocomposite

Also Published As

Publication number Publication date
FR3089237A1 (fr) 2020-06-05
EP3660215A1 (fr) 2020-06-03
FR3089237B1 (fr) 2021-03-05
ES2909426T3 (es) 2022-05-06

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