EP2388052A1 - Base pour terrain de jeux - Google Patents

Base pour terrain de jeux Download PDF

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Publication number
EP2388052A1
EP2388052A1 EP11425083A EP11425083A EP2388052A1 EP 2388052 A1 EP2388052 A1 EP 2388052A1 EP 11425083 A EP11425083 A EP 11425083A EP 11425083 A EP11425083 A EP 11425083A EP 2388052 A1 EP2388052 A1 EP 2388052A1
Authority
EP
European Patent Office
Prior art keywords
base
playing field
fibres
layer
thermoplastic material
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.)
Granted
Application number
EP11425083A
Other languages
German (de)
English (en)
Other versions
EP2388052B1 (fr
Inventor
Michele Corsiero
Davide Corsiero
Simone Corsiero
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.)
New Tennis System Srl
Original Assignee
New Tennis System Srl
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 New Tennis System Srl filed Critical New Tennis System Srl
Publication of EP2388052A1 publication Critical patent/EP2388052A1/fr
Application granted granted Critical
Publication of EP2388052B1 publication Critical patent/EP2388052B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C19/00—Design or layout of playing courts, rinks, bowling greens or areas for water-skiing; Covers therefor
    • A63C19/02—Shaping of the surface of courts according to the necessities of the different games
    • 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 present invention concerns a base for a playing field, the method for preparing it and a playing field made with such a base.
  • the described playing field is particularly suitable for playing tennis.
  • a base prepared in this way has optimal characteristics in terms of the bounce of the ball and the possibility of sliding, these being properties that make such a surface highly esteemed.
  • clay courts require continuous and careful, as well as expensive, upkeep.
  • mounds and holes can form that must be quickly filled or flattened by using special levelling mats so that the surface goes back to being as flat and smooth as possible.
  • the court When it rains, moreover, the court must be immediately covered with special covers so as to prevent it from being soaked.
  • special upkeep When located in open air they can only be used for a few months of the year and before the start of the sports season special upkeep must be carried out, with which the surface of the court is firstly cleaned of possible vegetable material through the use of an iron rasp and then the stiff top layer that forms over time due to the clay nature of the sub-surface must be tilled. Then the sub-surface itself needs to be restored and new red earth, i.e. ground brick, needs to be added. Then the court lines are marked out.
  • the purpose of the present invention is therefore to provide a base for a playing field, which reproduces the advantageous properties of a conventional clay base, but that does not involve the aforementioned drawbacks relative to the costs and maintenance times.
  • Figures 1 to 4 show bases for a playing field made according to the present invention and called Solution 1, Solution 2, Solution 3 and Solution 4 as will be shown hereafter.
  • the base 1 for a playing field comprises a support 2 with wire-like formations or fibres 3 that is completely filled with filling material 4.
  • the wire-like formations or fibres 3 joined to the support 2 constitute the so-called “synthetic grass", obtained with methods known in the field and that as far as possible simulates a natural grass surface.
  • they can be obtained by weaving onto a support material made from polypropylene or felt and then proceeding to cut the weaves themselves.
  • the material of which the fibres 3 consist is usually a polymeric material chosen, for example, from polyethylene, polypropylene, polyamide and polyester.
  • polypropylene is the preferred material, whereas polyethylene, being softer, is less preferred since the fibres thus obtained tend to bend too easily.
  • the same fibres 3 can also be of the single type, if made up of a single whole filament or else fibrillated, in the case in which the filament, from a certain height, has longitudinal cuts of different length, creating a sort of tuft of finer filaments.
  • Fibrillated fibres have the advantage of forming a denser mesh, thus capable of holding the filling material 4 more effectively, preventing it from moving and increasing its stability.
  • the height of the fibres can also be about 10-30 mm according to requirements and, to make a tennis court, preferably it is about 20 mm.
  • filling material we mean a solid material, generally in granular form, which is made to infiltrate between the wire-like formations or fibres 3 thus filling the void that separates each wire-like formation 3 from the other and keeping them uniformly spaced and in a substantially vertical position and perpendicular to the support 2.
  • the filling material, 4 in turn consists of a bottom filling layer 5 in contact with the support 2 and a top filling layer 6.
  • the bottom layer 5 is a layer of sand of the quartziferous type, having a quartz percentage of at least 99%.
  • the bottom layer of sand is made using about 1.8-2.2 Kg/m 2 of support and, preferably, about 2 kg/m 2 .
  • the amount of sand used for filling will be proportionally higher or lower according to the height of the filament-shaped formations or fibres 3.
  • composition of the top filling layer 6, on the other hand, can be made differently according to the type of Solution.
  • Figure 1 represents a cross section of a structure for a base of a playing field in accordance with Solution 1 of the present invention.
  • a structure 1 comprises the primary support 2 from which the wire-like formations or fibres 3 project, which are at least partially, preferably completely, i.e. for their entire height, filled with the filling material 4.
  • the filling comprises the bottom layer of sand 5 and a top filling layer 6 made with highly-baked brick material in granular form, for example ground brick, the granules of which have a diameter of approximately 0.05-2 mm.
  • such a brick material is clay-free.
  • the amount of granulated brick used for filling is about 20 kg/m 2 of support.
  • the base for a tennis court comprises the support 2 with the fibres 3 on which a first filling layer 5 of quartziferous sand is made as described above and a second filling layer 6 represented by a composition consisting of a highly baked granulated brick and a thermoplastic material in granular form.
  • a first filling layer 5 of quartziferous sand is made as described above
  • a second filling layer 6 represented by a composition consisting of a highly baked granulated brick and a thermoplastic material in granular form.
  • the granulated brick has the characteristics described above and does not contain clay.
  • thermoplastic material in granular form in the layer 6 it is polyurethane-based, characterised by a hardness defined in Sh.A (15 sec; ASTM D2240) comprised between 50 and 80, preferably 67.
  • thermoplastic material in granular form is mixed with the brick granulate in a percentage comprised between 5 and 20%, preferably 10%.
  • the filling material thus obtained is arranged in a quantity such as to completely cover the fibres, which, therefore, will not project from the filling remaining invisible and unnoticeable.
  • a base for a tennis court can be as represented in Figure 3 (Solution 3).
  • a first filling layer 5 is made consisting of quartziferous sand as indicated earlier.
  • the top filling layer 6 is arranged, which, in turn, comprises a bottom layer 6' of thermoplastic material and a top filling layer 6" consisting of highly-baked brick material.
  • thermoplastic material of the filling layer 6" and the brick granulate of the filling layer 6' have the characteristics described for Solutions 1 and 2.
  • the brick granulate is clay-free.
  • thermoplastic polymer and the brick granulate are not mixed together, but each represent a different layer.
  • the base of the playing field has surprisingly proven to reproduce the characteristics of clay bases.
  • it is advantageously soft, allowing players to play their sport at any level.
  • a base for a tennis court according to what has been described (Solution 1, Solution 2 and Solution 3), can be made on a shock-pad 7, as shown in Figure 4 according to the Solution 4 described hereafter.
  • said pad can consist of the drainage geocomposite Enkadrain®5006H (SEIC), comprising a three-dimensional core of monofilaments of polypropylene inside two geotextiles of unwoven filtering polypropylene welded together and fixedly connected with the core.
  • SEIC drainage geocomposite Enkadrain®5006H
  • the shock-absorbing and drainage pad 7 When it is being made, the shock-absorbing and drainage pad 7 is rested on a surface and the support 2 carrying the fibres 3 is placed on it, without it being necessary to use glues; thereafter, the fibres can be filled according to Solution 1, 2 or 3.
  • the purpose of the pad is to make it easier for water to drain, in particular horizontally.
  • a base for a playing field according to the present invention can be advantageously made even on top of surfaces that do not ensure vertical drainage, like for example cement or asphalt.
  • the pad 7 gives even greater softness to the base of the playing field, increasing its tolerability.
  • the present invention concerns as well a playing field, in particular a tennis court, the base of which is made according to what is described in the present invention.
  • step a the support 2 with the fibres 3 attached to it is represented by so-called "synthetic grass”.
  • the step of filling with sand of step b), on the other hand, is obtained with an amount of sand comprised between 1.5 and 2.5 kg/m 2 of support, preferably 2 Kg/m 2 of sand.
  • the top filling layer 6 comprising a mixture of brick granulate and of a thermoplastic material comprises about 5-15% by weight of thermoplastic material.
  • said thermoplastic material is a polyurethane in granular form and, according to a preferred aspect, it is characterised by a hardness defined in Sh.A (15 sec; ASTM D2240) comprised between 50 and 80, preferably 67.
  • the brick granules and the granules of polymeric material have a diameter of about 0.05-2 mm.
  • the field obtained in accordance with the present invention requires less upkeep, in terms of hours and particularly in terms of costs.
  • the restoration of the base at the start of the season does not, for example, comprise the operations that were described in reference to bases for traditional tennis courts, like the removal of the hardened surface layer that forms due to heat and humidity.
  • the formation of holes and depressions is less common and, therefore, the surface has to be levelled less frequently.
  • the field thus prepared requires less frequent and abundant watering, advantageously helping to save up to 60% water. If the field is inside a closed structure, then the unpleasant smell of mould and wet does not develop.
  • the base for a playing field of the present invention can be tolerated for longer by players, who suffer from less stress to the joints and muscles.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Structures (AREA)
  • Display Devices Of Pinball Game Machines (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Pinball Game Machines (AREA)
EP20110425083 2010-04-01 2011-03-31 Base pour terrain de jeux Active EP2388052B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI2010A000557A IT1399121B1 (it) 2010-04-01 2010-04-01 Fondo per campo da gioco

Publications (2)

Publication Number Publication Date
EP2388052A1 true EP2388052A1 (fr) 2011-11-23
EP2388052B1 EP2388052B1 (fr) 2012-10-31

Family

ID=43086045

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20110425083 Active EP2388052B1 (fr) 2010-04-01 2011-03-31 Base pour terrain de jeux

Country Status (3)

Country Link
EP (1) EP2388052B1 (fr)
ES (1) ES2398905T3 (fr)
IT (1) IT1399121B1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5678951A (en) * 1993-02-12 1997-10-21 Sommer Levasseur Element for synthetic tennis ground and method for its production
EP2039831A1 (fr) * 2007-09-24 2009-03-25 Domo Zele NV Ensemble de gazon artificiel
WO2009118388A1 (fr) * 2008-03-27 2009-10-01 Dsm Ip Assets B.V. Granules de polymère appropriés pour être utilisés comme matériau de remplissage pour des structures de tourbe artificielles

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5678951A (en) * 1993-02-12 1997-10-21 Sommer Levasseur Element for synthetic tennis ground and method for its production
EP2039831A1 (fr) * 2007-09-24 2009-03-25 Domo Zele NV Ensemble de gazon artificiel
WO2009118388A1 (fr) * 2008-03-27 2009-10-01 Dsm Ip Assets B.V. Granules de polymère appropriés pour être utilisés comme matériau de remplissage pour des structures de tourbe artificielles

Also Published As

Publication number Publication date
EP2388052B1 (fr) 2012-10-31
ES2398905T3 (es) 2013-03-22
IT1399121B1 (it) 2013-04-05
ITMI20100557A1 (it) 2011-10-02

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