EP2055834A1 - Method for producing loose material for making a field for sports activities and loose material so obtained - Google Patents

Method for producing loose material for making a field for sports activities and loose material so obtained Download PDF

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Publication number
EP2055834A1
EP2055834A1 EP08167692A EP08167692A EP2055834A1 EP 2055834 A1 EP2055834 A1 EP 2055834A1 EP 08167692 A EP08167692 A EP 08167692A EP 08167692 A EP08167692 A EP 08167692A EP 2055834 A1 EP2055834 A1 EP 2055834A1
Authority
EP
European Patent Office
Prior art keywords
coconut
granular
loose material
raw material
sand
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Withdrawn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
EP08167692A
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German (de)
English (en)
French (fr)
Inventor
Roberto Nusca
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP2055834A1 publication Critical patent/EP2055834A1/en
Withdrawn legal-status Critical Current

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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
    • E01C13/06—Pavings made in situ, e.g. for sand grounds, clay courts E01C13/003

Definitions

  • the present invention relates to a method for making a field of loose material for sports activities, such as a racing ground for motocross, rally, etc., a racing ground for equestrian sports, both for outdoor and indoor activities.
  • the invention relates to a loose material obtained with this method.
  • sports surfaces in particular racing grounds and training fields for equestrian sports, motocross and rally, can be of various types, for example of turf, of sand, and can provide the use of material such as sawdust, etc., according to the desired features.
  • the known grounds for outdoor activities must have high capacity of absorption and drainage of water, to allow the use also in case of rain, or not much time after rainfall.
  • sand to make grounds for sports activities has various drawbacks, among which high cost and the possibility of causing excoriations and abrasions on the skin of the users, for example in case of fall.
  • some types of sand are characterized by thickening with time, and then are instable.
  • Other types of sand instead, have an high water retention and are then too soft in operative conditions.
  • coconut fibres are provided also in DE20309789U1 mixed with a determined amount of sand, obtaining a surface that can be used in training fields and in racing grounds for equestrian sports.
  • coconut material comprises loose and powder parts.
  • the latter are in large ratio and have size less than 500 micron. They have the drawback of requiring to be maintained humid because, in the presence of wind, or under intense sports activities, for example horse-riding and motocross, they cause powder raising and discomfort for the users. To overcome this drawback it is necessary to wet it frequently.
  • the dust deriving from grinding coconuts have a high capacity of water retention and, in case of abundant rain, it emphasizes the presence of water stagnation.
  • the fine parts of the coconut fibres percolate with rainwater and block water drainage.
  • rainwater can cause with time the fine parts to compact and worsen further the drainage of the ground as well as the technical performances of the sports field.
  • one exemplary loose material, according to the invention for sports activities comprising a measured amount of a product based on coconut, whose main feature is that said product based on coconut comprises the sole granular and fibrous parts contained in a raw material based on ground coconut.
  • the granular and fibrous parts of the raw material based on coconut are obtained by submitting the raw material to a separation step of the granular and fibrous parts from the powder parts.
  • the above described separation of the granular and fibrous parts from the powder part of the raw material based on ground coconut is made by milling the raw material in a grinding means, obtaining said product that comprises the granular and fibrous parts and a powder part.
  • the loose material can comprise, furthermore, a measured amount of sand.
  • the loose material has a content of the granular and fibrous parts of the raw material based on coconut set between 40% and 80% in volume, and a content of sand set between 20% and 60% in volume.
  • the loose material has a content of the granular and fibrous parts of the raw material based on coconut set between 50% and 70% in volume, and a content of sand set between 30% and 50% in volume.
  • the sand is selected sand, preferably ventilated sand, with controlled granulometry, in particular set between 0,4 and 2,5 mm.
  • the granular and fibrous parts based on coconut have the following granulometry:
  • a method to obtain a product based on coconut that can be used as loose material to provide surfaces for sports activities provides the steps of:
  • said raw material based on ground coconut is obtained by milling the raw material based on coconut in a grinding means, obtaining said product that comprises a granular and fibrous part and a powder part.
  • the separating means comprises sieving means selected from the group comprised of:
  • a method for making a field for sports activities provides a step of distributing a loose material comprising a measured amount of a product based on coconut on a surface to cover, whose main feature is that said product based on coconut comprises the sole granular and fibrous parts contained in a raw material based on ground coconut.
  • a coconut 100 comprises, in summary, an epicarp 101, thin, smooth and in grey-brownish colour, a fibrous mesocarp 102, often 4-8 cm, and a wooden endocarp 103.
  • the latter represents the coconut fruit whose pulp is used as food.
  • the epicarp 101 and the fibrous mesocarp 102 hereafter generically indicated as material based on coconut 10, which may comprise also coconut tree material comprising branches and leaves of coconut trees, is sent to a plant for making loose material to provide a field for sports activities, according to the invention.
  • the method for making a field for sports activities can be carried by the plant shown in Fig. 2 .
  • raw material based on coconut for example transported as a bale 10
  • milling means such as a hammer mill 11.
  • long fibres are obtained that are separated from the remaining material and used, for example for making ropes and mats, and on the other hand short and medium fibres and powder are obtained, hereafter indicated generically as raw material based on ground coconut 15.
  • the raw material based on ground coconut is already separated from the long fibres in the places of production, and then put into compressed bales for transportation.
  • the raw material based on ground coconut 15, having a heterogeneous granulometry that spans between a few microns to several mm, and with a relevant powdery part less than 500 micron, is loaded by a hopper 12 on a conveyor belt 20 for being fed to a sieve.
  • the latter can be for example a rotating sieve 30 comprising an external jacket 31 in which a cylindrical screen 32 is arranged.
  • the cylindrical screen 32 is subject to a controlled vibration to assist the movement of the powder part 16 of the ground loose product 15 through the screen.
  • the screen has apertures with a size corresponding to the desired sieving size.
  • a screw conveyor can be mounted, diagrammatically shown in Fig. 1 with dotted line 38, which is adapted, on the one hand, to convey the whole mass causing the powder part 16 to pass through sieve 32, and, on the other hand, to push the granular and fibrous parts 17 towards an outlet 35 of the rotating sieve, which is located opposite to inlet 34.
  • the powder part 16 of the loose material once reached sieve 32, hits against the inner wall of jacket 31 and falls by gravity on a conveyor belt 40 arranged below sieve 32. From conveyor belt 40, the powder part 16 is brought, by a further conveyor belt 21, to a storage reservoir 41 for being then used in cultivation for being used as such, or mixed to peat, to provide substrates of culture.
  • the granular and fibrous parts 17 of the loose material which represents the main product of the process, is, instead, sent by a conveyor belt 22 to a storage reservoir 43 and from there sent to processes for making loose material, adapted for sports activities, according to the methodology described hereafter.
  • the granular and fibrous parts can have the following granulometry:
  • the loose material to provide substrates for sports activities in addition to the loose product that has the sole granular and fibrous parts contained in the raw material based on ground coconut, it can comprise also sand, in particular, selected sand, ventilated sand with controlled granulometry set between 0,4 and 1,25 mm.
  • the final loose material may have a content of the granular and fibrous parts of the ground loose product based on coconut set between 40% and 80% in volume, and a content of sand set between 20% and 60%.
  • the final loose material has a content of the granular and fibrous parts of the ground loose product based on coconut set between 50% and 70% in volume, and a content of sand set between 30 and the 50%.
  • the loose material thus obtained has as main advantage, which is obtained by using the sole granular and fibrous parts 17 of the loose product based on coconut, to avoid raising powder from the field for sports activities during its use and to avoid, furthermore, that the dust can compact in the presence of water.
  • compositions of a field of loose material for sports activities according to the present invention.
  • the loose material has the following composition:
  • this composition can be advantageously used to provide a field for equestrian sports.
  • the above described composition in particular has a humidity about 30-35%.
  • the loose material has the following composition:
  • this composition can be advantageously used to provide racing ground for motocross, rally and similar activities.
  • the above described composition has in particular a humidity 30-35%.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Road Paving Structures (AREA)
EP08167692A 2007-10-31 2008-10-28 Method for producing loose material for making a field for sports activities and loose material so obtained Withdrawn EP2055834A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITPI20070120 ITPI20070120A1 (it) 2007-10-31 2007-10-31 Metodo di realizzazione di un fondo in materiale sfuso per attivita' sportive e materiale sfuso cosi' ottenuto

Publications (1)

Publication Number Publication Date
EP2055834A1 true EP2055834A1 (en) 2009-05-06

Family

ID=40314008

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08167692A Withdrawn EP2055834A1 (en) 2007-10-31 2008-10-28 Method for producing loose material for making a field for sports activities and loose material so obtained

Country Status (2)

Country Link
EP (1) EP2055834A1 (it)
IT (1) ITPI20070120A1 (it)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120189786A1 (en) * 2009-08-27 2012-07-26 Mar. Project S.R.L. Infill material for synthetic turfs and synthetic turfs so obtained
JP2017166226A (ja) * 2016-03-16 2017-09-21 長谷川体育施設株式会社 クレイグラウンド用改良材及びクレイグラウンド用混合土
EP4181662A4 (en) * 2020-07-20 2024-08-14 Carapella, Domenic INFUSER FOR USE WITH SYNTHETIC GRASS AND METHOD AND APPARATUS FOR PRODUCING SAME

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4900010A (en) 1987-10-29 1990-02-13 Bernd Wengmann Athletic field and playground
GB2292091A (en) * 1994-08-13 1996-02-14 Fibresand Ltd Surfaces for sports grounds
EP0898881A1 (en) * 1997-08-15 1999-03-03 Mels Elbert Doesburg Ground covering materials and applications thereof
DE20309789U1 (de) 2003-06-24 2004-08-05 Reitanlagen Stiller Gmbh Reitplatzsystem
WO2008125895A1 (en) * 2007-04-12 2008-10-23 Roberto Nusca Method for obtaining synthetic turf

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4900010A (en) 1987-10-29 1990-02-13 Bernd Wengmann Athletic field and playground
GB2292091A (en) * 1994-08-13 1996-02-14 Fibresand Ltd Surfaces for sports grounds
EP0898881A1 (en) * 1997-08-15 1999-03-03 Mels Elbert Doesburg Ground covering materials and applications thereof
DE20309789U1 (de) 2003-06-24 2004-08-05 Reitanlagen Stiller Gmbh Reitplatzsystem
WO2008125895A1 (en) * 2007-04-12 2008-10-23 Roberto Nusca Method for obtaining synthetic turf

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120189786A1 (en) * 2009-08-27 2012-07-26 Mar. Project S.R.L. Infill material for synthetic turfs and synthetic turfs so obtained
US10837146B2 (en) * 2009-08-27 2020-11-17 Mar.Project S.R.L. Infill material for synthetic turfs and synthetic turfs so obtained
JP2017166226A (ja) * 2016-03-16 2017-09-21 長谷川体育施設株式会社 クレイグラウンド用改良材及びクレイグラウンド用混合土
EP4181662A4 (en) * 2020-07-20 2024-08-14 Carapella, Domenic INFUSER FOR USE WITH SYNTHETIC GRASS AND METHOD AND APPARATUS FOR PRODUCING SAME
US12195928B2 (en) 2020-07-20 2025-01-14 G2 Greenplay Organics, Llc Infill for use with synthetic turf and method and apparatus for producing same

Also Published As

Publication number Publication date
ITPI20070120A1 (it) 2009-05-01

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