EP0063111B1 - Surfacing for sports grounds, particularly for tennis courts, and a method of producing the surfacing material - Google Patents
Surfacing for sports grounds, particularly for tennis courts, and a method of producing the surfacing material Download PDFInfo
- Publication number
- EP0063111B1 EP0063111B1 EP82890036A EP82890036A EP0063111B1 EP 0063111 B1 EP0063111 B1 EP 0063111B1 EP 82890036 A EP82890036 A EP 82890036A EP 82890036 A EP82890036 A EP 82890036A EP 0063111 B1 EP0063111 B1 EP 0063111B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- particles
- covering
- scattered
- covering according
- material contains
- 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.)
- Expired
Links
- 238000000034 method Methods 0.000 title claims abstract description 5
- 239000000463 material Substances 0.000 title claims 7
- 239000002245 particle Substances 0.000 claims abstract description 29
- 239000004033 plastic Substances 0.000 claims abstract description 16
- 229920003023 plastic Polymers 0.000 claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 229920001971 elastomer Polymers 0.000 claims description 5
- 239000004433 Thermoplastic polyurethane Substances 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- 239000000806 elastomer Substances 0.000 claims description 2
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- 229920002725 thermoplastic elastomer Polymers 0.000 claims description 2
- 229920002803 thermoplastic polyurethane Polymers 0.000 claims description 2
- 230000000386 athletic effect Effects 0.000 abstract 2
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 239000000758 substrate Substances 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 11
- 239000011449 brick Substances 0.000 description 8
- 235000013339 cereals Nutrition 0.000 description 5
- 239000000428 dust Substances 0.000 description 4
- 230000000087 stabilizing effect Effects 0.000 description 4
- 235000013312 flour Nutrition 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 239000004970 Chain extender Substances 0.000 description 1
- 239000006057 Non-nutritive feed additive Substances 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 125000005442 diisocyanate group Chemical group 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 210000003041 ligament Anatomy 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920003225 polyurethane elastomer Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/14—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers
- B02C18/148—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers specially adapted for disintegrating plastics, e.g. cinematographic films
-
- 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
- E01C13/065—Pavings made in situ, e.g. for sand grounds, clay courts E01C13/003 at least one in situ layer consisting of or including bitumen, rubber or plastics
Definitions
- the invention relates to a covering for tennis courts or similarly stressed sports fields, which has a loosely poured layer containing plastic particles on its surface, and a method for producing these plastic particles.
- a sports field covering particularly suitable for tennis courts was proposed in CH-A-611 959, in which a backing layer is provided in which stabilizing grains e.g. B. are firmly embedded from rubber, which protrude about a third of their height dimension from the carrier layer.
- stabilizing grains e.g. B. are firmly embedded from rubber, which protrude about a third of their height dimension from the carrier layer.
- a relatively thin outer layer of fine rubber granulate with a grain size of 0.5 to 1.5 mm is then applied to this carrier layer, which fills the gaps between the stabilizing grains protruding from the carrier layer and covers their tips. If the athlete now pushes away from the surface, the tips of the stabilizing grains are gripped by the profile sole of the tennis or sports shoe. B. allows a perfect impression when starting.
- the invention seeks to remedy this.
- the invention as characterized in the claims, solves the problem of creating a covering for tennis courts or similarly stressed sports fields, which has a loosely poured layer of plastic particles on its surface, as well as specifying a method for producing these plastic particles, wherein the covering largely any solid surface, such as. B. on asphalt, and if necessary can be removed from it again and which is just as pleasant for the athlete in use as a brick meal place.
- a covering according to the invention having the desired properties can only consist of a loosely poured layer of particles based on an elastic plastic if at least the majority of the particles used are cuboid, plate-like or scaly in a geometrically defined form .
- particles based on an elastic plastic is intended to indicate that the particles can contain, in addition to the plastic, fillers, aging agents, stabilizers, processing aids, dyes and / or pigments as well as inorganic additives in the usual way.
- Particles of this type have only a slight tendency to curl, which on the one hand favors a stabilization of the bed on the underbody and, on the other hand, leads to an increased braking effect with the desired slight sliding when the athlete brakes.
- a plastic band is assumed, the thickness of which is equal to one of the dimensions (for example the thickness) of the particles to be produced.
- This plastic band is now continuously fed from the roll with its leading edge over a fixed counter-edge provided with comb-toothed cutting edge.
- a rotor equipped with one or more knives cooperates with this shear bar, the cutting edges of the knives also being toothed like a comb and interacting with the teeth of the shear bar.
- the impact knives are rotated, the desired small plastic particles are then cut off from the front edge of the continuously advanced plastic strip in the intended cuboid or plate shape.
- the tape used to produce the particles consists of a thermoplastic polyurethane elastomer, such as from polyadducts of polyesters, diisocyanates and chain extenders, such as those used for. B. according to the type series 400 from the company EUROPOLYMERS LTD., England.
- the belt used for particle production consists of a one- or two-component polyurethane system, such as. B. from a modified MDI and an ether-glycol mixture, as it is offered in a cold-curing system of the type BAYSPORT from BAYER, Germany.
- the tape used for particle production consists of a thermoplastic rubber, which is produced in particular by copolymerization of styrene and butadiene and how it z. B. is offered by the company SHELL CHEMIE, Vienna.
- the belt used for particle production consists of a modified PVC compound.
- the modifier can be a polyurethane elastomer, such as. B. is supplied by the company EUROPOLYMERS LTD., England, under the type 707, or a permanent plasticizer based on synthetic resin, as it is offered by the company Du Pont, Switzerland, under the type EL-VALOY 741.
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
- Road Repair (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
- Golf Clubs (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Description
Die Erfindung betrifft einen Belag für Tennisplätze oder ähnlich beanspruchte Sportplätze, der an seiner Oberfläche eine lose geschüttete, Kunststoffteilchen enthaltende Schicht aufweist, sowie ein Verfahren zur Herstellung dieser Kunststoffteilchen.The invention relates to a covering for tennis courts or similarly stressed sports fields, which has a loosely poured layer containing plastic particles on its surface, and a method for producing these plastic particles.
Bei Sportarten wie bei Tennis, bei denen der Sportler viel Laufarbeit mit Starten, Beschleunigen und vielfach abruptem Abbremsen zu bewältigen hat, haben sich bisher insbesondere Rasenplätze oder, bei den sogenannten Hartplätzen, Spielplätze mit einer Oberflächenschicht aus lose geschütteten und gewalzten Ziegelmehl bewährt. Ein wesentlicher Vorteil solcher Ziegelmehlplätze liegt darin, daß der Sportler bei einer abrupten Abbremsbewegung mit dem abbremsenden Bein geringfügig ausgleitet, wodurch die dabei aufzunehmenden Spitzenbelastungen verringert und die Gelenke und Bänder der Beine geschont werden. Andererseits sind Elastizität, Dämpfung und das Reibungsverhalten eines gewalzten Ziegelmehlbelages besonders günstig.In sports such as tennis, in which the athlete has to do a lot of running work with starting, accelerating and often abruptly braking, lawn areas or, in the so-called hard courts, playgrounds with a surface layer of loosely poured and rolled brick powder have proven their worth. A major advantage of such brick flour places is that the athlete slides slightly with the braking leg in the event of an abrupt braking movement, thereby reducing the peak loads to be absorbed and protecting the joints and ligaments of the legs. On the other hand, elasticity, damping and the friction behavior of a rolled brick dust covering are particularly favorable.
Nachteile der Ziegelmehlplätze bestehen in dem hohen Pflegeaufwand; der Platz muß regelmäßig gewalzt und befeuchtet werden. Bei einer zu geringen Feuchtigkeit besteht außerdem eine Neigung zum Stauben. Das Ziegelmehl unterliegt ferner einem ständigen Verschleiß und muß von Zeit zu Zeit erneuert werden. Aus diesem Grund und der Notwendigkeit einer Befeuchtung, die in geschlossenen Räumen oft zu einer unangenehmen hohen Luftfeuchtigkeit führt, ist der Einsatz von solchen Ziegelmehlbelägen in geschlossenen Sporthallen problematisch.Disadvantages of the brick flour places are the high maintenance effort; the place must be rolled and moistened regularly. If the humidity is too low, there is also a tendency to dust. The brick flour is also subject to constant wear and must be replaced from time to time. For this reason and the need for humidification, which often leads to unpleasant high air humidity in closed rooms, the use of such brick dust coverings in closed sports halls is problematic.
Um die Nachteile dieser Ziegelmehlbeläge zu vermeiden, wurde in der CH-A-611 959 ein insbesondere für Tennisplätze geeigneter Sportplatzbelag vorgeschlagen, bei dem eine Trägerschicht vorgesehen ist, in der Stabilisierungskörner z. B. aus Gummi fest eingebettet sind, welche etwa mit einem Drittel ihrer Höhenabmessung aus der Trägerschicht herausragen. Auf diese Trägerschicht wird dann eine relativ dünne Deckschicht aus feinem Gummigranulat mit einer Körnung von 0,5 bis 1,5 mm aufgebracht, welche die Zwischenräume zwischen den aus der Trägerschicht herausragenden Stabilisierungskörnern ausfüllt und deren Spitzen bedeckt. Wenn sich der Sportler nun von dem Belag abdrückt, werden die Spitzen der Stabilisierungskörnervon der Profilsohle des Tennis- oder Sportschuhes erfaßt, was z. B. beim Starten ein einwandfreies Abdrücken ermöglicht. Das beim Abbremsen gewünschte geringfügige Ausgleiten wird durch das feine Gummigranulat der Deckschicht gewährleistet, wobei ein stärkeres seitliches Verschieben des Deckschicht-Granulates durch die in der Trägerschicht fest eingebetteten Stabilisierungskörner weitgehend verhindert wird. Der aus der CH-A-611 959 bekannte Sportplatzbelag ist in seiner Herstellung aber recht aufwendig.In order to avoid the disadvantages of these brick dust coverings, a sports field covering particularly suitable for tennis courts was proposed in CH-A-611 959, in which a backing layer is provided in which stabilizing grains e.g. B. are firmly embedded from rubber, which protrude about a third of their height dimension from the carrier layer. A relatively thin outer layer of fine rubber granulate with a grain size of 0.5 to 1.5 mm is then applied to this carrier layer, which fills the gaps between the stabilizing grains protruding from the carrier layer and covers their tips. If the athlete now pushes away from the surface, the tips of the stabilizing grains are gripped by the profile sole of the tennis or sports shoe. B. allows a perfect impression when starting. The slight slipping that is desired when braking is ensured by the fine rubber granulate of the cover layer, whereby a greater lateral displacement of the cover layer granulate is largely prevented by the stabilizing grains firmly embedded in the support layer. The sports field covering known from CH-A-611 959 is, however, quite complex to manufacture.
Hier will die Erfindung Abhilfe schaffen. Die Erfindung, wie sie in den Ansprüchen gekennzeichnet ist, löst die Aufgabe, einen Belag für Tennisplätze oder ähnlich beanspruchte Sportplätze zu schaffen, der an seiner Olzerfläche eine lose geschüttete Schicht Kunststoffteilchen aufweist, sewie ein Verfahren zur Herstellung dieser Kunststoffteilchen anzugeben, wobei der Belag auf weitgehend jedem beliebigen festen Untergrund, wie z. B. auf Asphalt, aufgebracht und gegebenenfalls von diesem wieder abgetragen werden kann und welcher bei einer Benutzung für den Sportler ebenso angenehm ist, wie ein Ziegelmehlplatz.The invention seeks to remedy this. The invention, as characterized in the claims, solves the problem of creating a covering for tennis courts or similarly stressed sports fields, which has a loosely poured layer of plastic particles on its surface, as well as specifying a method for producing these plastic particles, wherein the covering largely any solid surface, such as. B. on asphalt, and if necessary can be removed from it again and which is just as pleasant for the athlete in use as a brick meal place.
- -Die Erfindung wirdnAchstehend.anban4cines- durch mehrere Beispiele erläuterten Ausführungsweges näher beschrieben.The invention is described in more detail below by means of a number of exemplary embodiments.
Die Anmelder haben gefunden, daß ein die gewünschten Eigenschaften aufweisender erfindungsgemäßer Belag nur aus einer lose geschütteten Schicht aus Teilchen auf Basis eines elastischen Kunststoffes bestehen kann, wenn zumindest der größere Teil der eingesetzten Teilchen in geometrisch definierter Form quader-, plättchen- oder schuppfenförmig ausgebildet sind.The applicants have found that a covering according to the invention having the desired properties can only consist of a loosely poured layer of particles based on an elastic plastic if at least the majority of the particles used are cuboid, plate-like or scaly in a geometrically defined form .
Mit der Angabe »Teilchen auf Basis eines elastischen Kunststoffes« soll angedeutet werden, daß die Teilchen neben dem Kunststoff in üblicher Weise Füllstoffe, Alterungsmittel, Stabilisatoren, Verarbeitungshilfsstoffe, Farbstoffe und/ oder Pigmente sowie anorganische Beimengungen enthalten können.The expression "particles based on an elastic plastic" is intended to indicate that the particles can contain, in addition to the plastic, fillers, aging agents, stabilizers, processing aids, dyes and / or pigments as well as inorganic additives in the usual way.
Teilchen dieser Art haben nur eine geringe Rollneigung, was einerseits einer Stabilisierung der Schüttung auf dem Unterboden begünstigt und, andererseits, bei Abbremsbewegungen des Sportlers zu einer erhöhten Bremswirkung bei dem gewünschten geringfügigen Ausgleiten führt.Particles of this type have only a slight tendency to curl, which on the one hand favors a stabilization of the bed on the underbody and, on the other hand, leads to an increased braking effect with the desired slight sliding when the athlete brakes.
Für die Herstellung der Teilchen gemäß dem erfindungsgemäßen Verfahren wird von einem Kunststoffband ausgegangen, dessen Dicke gleich einer der Dimensionen (z. B. der Dicke) der herzustellenden Teilchen ist. Dieses Kunststoffband wird nun von der Rolle kontinuierlich mit seiner Vorderkante über eine feststehende, mit kammartig gezahnter Schneidkante versehene Gegenschneide vorgeschoben. Mit dieser Gegenschneide arbeitet ein mit einem oder mehreren Schlagmessern bestückter Rotor zusammen, wobei die Schneidkanten der Schlagmesser ebenfalls kammartig gezahnt sind und mit der Zahnung der Gegenschneide zusammenwirken. Beim Rotieren der Schlagmesser werden dann von der Vorderkante des kontinuierlich vorgeschobenen Kunststoffbandes die gewünschten kleinen Kunststoffteilchen in der vorgesehenen Quader- bzw. Plättchenform abgetrennt.For the production of the particles according to the method according to the invention, a plastic band is assumed, the thickness of which is equal to one of the dimensions (for example the thickness) of the particles to be produced. This plastic band is now continuously fed from the roll with its leading edge over a fixed counter-edge provided with comb-toothed cutting edge. A rotor equipped with one or more knives cooperates with this shear bar, the cutting edges of the knives also being toothed like a comb and interacting with the teeth of the shear bar. When the impact knives are rotated, the desired small plastic particles are then cut off from the front edge of the continuously advanced plastic strip in the intended cuboid or plate shape.
Für die eingesetzten Kunststoffe, die vorteilhaft Ozon- und UV-beständig ausgerüstet sind, werden nachstehend einige Beispiele gegeben:Some examples are given below for the plastics used, which are advantageously made resistant to ozone and UV:
Das zur Erzeugung der Teilchen eingesetzte Band besteht aus einem thermoplastischen Polyurethan-Elastomeren, wie aus Polyadditionsprodukten von Polyestern, Diisocyanaten und Kettenextendern, wie sie z. B. gemäß der Typenreihe 400 von der Firma EUROPOLYMERS LTD., England, angeboten werden.The tape used to produce the particles consists of a thermoplastic polyurethane elastomer, such as from polyadducts of polyesters, diisocyanates and chain extenders, such as those used for. B. according to the type series 400 from the company EUROPOLYMERS LTD., England.
Das zur Teilchenerzeugung eingesetzte Band besteht aus einem Ein- oder Zweikomponenten-Polyurthansystem, wie z. B. aus einem modifizierten MDI und einer Äther-Glycol-Mischung, wie sie in einem kalthärtenden System der Type BAYSPORT der Firma BAYER, BRD, angeboten wird.The belt used for particle production consists of a one- or two-component polyurethane system, such as. B. from a modified MDI and an ether-glycol mixture, as it is offered in a cold-curing system of the type BAYSPORT from BAYER, Germany.
Das zur Teilchenerzeugung eingesetzte Band besteht aus einem thermoplastischen Kautschuk, der insbesondere durch Kopolymerisation von Styrol und Butadien hergestellt ist und wie er z. B. von der Firma SHELL CHEMIE, Wien, angeboten wird.The tape used for particle production consists of a thermoplastic rubber, which is produced in particular by copolymerization of styrene and butadiene and how it z. B. is offered by the company SHELL CHEMIE, Vienna.
Das zur Teilchenerzeugung eingesetzte Band besteht aus einem modifizierten PVC-Compound. Das Modifizierungsmittel kann dabei ein Polyurethan-Elastomeres sein, wie es z. B. von der Firma EUROPOLYMERS LTD., England, unter der Type 707 geliefert wird, oder ein Permanentweichmacher auf Kunstharzbasis sein, wie er von der Firma Du Pont, Schweiz, unter der Type EL-VALOY 741 angeboten wird.The belt used for particle production consists of a modified PVC compound. The modifier can be a polyurethane elastomer, such as. B. is supplied by the company EUROPOLYMERS LTD., England, under the type 707, or a permanent plasticizer based on synthetic resin, as it is offered by the company Du Pont, Switzerland, under the type EL-VALOY 741.
Claims (9)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT82890036T ATE17139T1 (en) | 1981-03-09 | 1982-03-08 | COVERING FOR SPORTS COURTS, ESPECIALLY FOR TENNIS COURTS, AND A PROCESS FOR MANUFACTURING THE COVERING MATERIAL. |
| DE8383890031T DE3363878D1 (en) | 1982-03-08 | 1983-03-08 | Surfacing for tennis-courts, and a method for producing the surfacing material |
| EP19830890031 EP0088748B1 (en) | 1982-03-08 | 1983-03-08 | Surfacing for tennis-courts, and a method for producing the surfacing material |
| AT83890031T ATE20259T1 (en) | 1982-03-08 | 1983-03-08 | COVERING FOR TENNIS COURTS, AND A PROCESS FOR MANUFACTURING THE COVERING MATERIAL. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT1056/81 | 1981-03-09 | ||
| AT0105681A AT374115B (en) | 1981-03-09 | 1981-03-09 | COVERING FOR SPORTS COURSES, IN PARTICULAR TENNIS COURSES |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0063111A2 EP0063111A2 (en) | 1982-10-20 |
| EP0063111A3 EP0063111A3 (en) | 1983-03-16 |
| EP0063111B1 true EP0063111B1 (en) | 1985-12-27 |
Family
ID=3505626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP82890036A Expired EP0063111B1 (en) | 1981-03-09 | 1982-03-08 | Surfacing for sports grounds, particularly for tennis courts, and a method of producing the surfacing material |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US4822026A (en) |
| EP (1) | EP0063111B1 (en) |
| AT (2) | AT374115B (en) |
| DE (1) | DE3268073D1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2546927A1 (en) * | 1983-06-06 | 1984-12-07 | Bat Taraflex | Ground surfaces intended for sports which involve moving around and particularly for equestrian sports |
| GB2142960B (en) * | 1983-07-06 | 1986-07-16 | Nuway Mfg | Sports surface construction |
| US5020936A (en) * | 1989-07-28 | 1991-06-04 | International Soil Systems, Inc. | Animal running surface |
| DE9405554U1 (en) * | 1994-04-01 | 1994-06-01 | Schöpp, Ralph, 58285 Gevelsberg | Flooring, especially for tennis courts |
| GB2340497B (en) * | 1998-06-03 | 2003-01-08 | Genshaw Ltd | Construction materials |
| FR2807078B1 (en) | 2000-03-29 | 2002-10-18 | Envirosport | SPORTS FLOORING, ESPECIALLY FOR TENNIS COURTS AND OTHER BALL GAMES |
| US7360997B2 (en) * | 2005-10-06 | 2008-04-22 | General Electric Company | Vibration damper coating |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3291486A (en) * | 1962-06-26 | 1966-12-13 | Dow Chemical Co | Ski slopes having a surface coating comprising a particulate resinous composition |
| CH505650A (en) * | 1969-09-22 | 1971-04-15 | Calmec Extruform Ltd | Shredder/pulverizer for thin plastic mater - ial |
| US3801421A (en) * | 1970-11-09 | 1974-04-02 | Minnesota Mining & Mfg | Resilient composite useful as surfacing for athletics |
| DE2110327A1 (en) * | 1971-03-04 | 1972-09-21 | Herbert Allwelt | Rubber granules - from used tyres with rotary stripping blade and cutting screens |
| US3731923A (en) * | 1971-04-26 | 1973-05-08 | Snow Products | Artificial ski slope |
| US3736847A (en) * | 1971-09-07 | 1973-06-05 | Mosher R | Synthetic terrain covering |
| DE2420913A1 (en) * | 1974-04-30 | 1975-11-13 | Wilhelm Haeberle | Disintegrator esp for plastics waste and glass - has flat parallel segment-shaped meshing oscillating blades |
| DE2602652A1 (en) * | 1976-01-24 | 1977-07-28 | Rolfherbert Stuehmer | Slip-improving plastics coating for a ski - comprises an optionally slightly compacted layer of plastics particles which may contain a metallic filler |
| JPS5374723A (en) * | 1976-12-15 | 1978-07-03 | Mitsui Toatsu Chemicals | Method of elastically paving |
| JPS5374725A (en) * | 1976-12-15 | 1978-07-03 | Mitsui Toatsu Chemicals | Elastic paving method |
| AT370464B (en) * | 1977-09-28 | 1983-04-11 | Becker Kg Sport | COVERING, IN PARTICULAR FOR TENNIS COURTS |
| DE2826206C2 (en) * | 1978-06-15 | 1984-01-12 | Gebr. Becker GmbH & Co KG, 6204 Taunusstein | Plastic covering for sports fields, in particular tennis courts |
| DE2813761A1 (en) * | 1978-03-30 | 1979-10-11 | Firl U Schretter Moderner Spor | Outdoor sports or gymnastic ground covering - has elastic granular coating surface ground away to half grain height |
| FR2498463A1 (en) * | 1981-01-23 | 1982-07-30 | Cirou Jean Luc | Dimpled plastic coated fabric surfaces for tennis courts etc. - stretched taut over a plain flattened substrate |
-
1981
- 1981-03-09 AT AT0105681A patent/AT374115B/en not_active IP Right Cessation
-
1982
- 1982-03-08 AT AT82890036T patent/ATE17139T1/en not_active IP Right Cessation
- 1982-03-08 EP EP82890036A patent/EP0063111B1/en not_active Expired
- 1982-03-08 DE DE8282890036T patent/DE3268073D1/en not_active Expired
-
1983
- 1983-03-07 US US06/472,666 patent/US4822026A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| EP0063111A2 (en) | 1982-10-20 |
| EP0063111A3 (en) | 1983-03-16 |
| DE3268073D1 (en) | 1986-02-06 |
| US4822026A (en) | 1989-04-18 |
| AT374115B (en) | 1984-03-26 |
| ATA105681A (en) | 1983-05-15 |
| ATE17139T1 (en) | 1986-01-15 |
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