EP0433237A2 - Shock absorbing mat - Google Patents

Shock absorbing mat Download PDF

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Publication number
EP0433237A2
EP0433237A2 EP90810966A EP90810966A EP0433237A2 EP 0433237 A2 EP0433237 A2 EP 0433237A2 EP 90810966 A EP90810966 A EP 90810966A EP 90810966 A EP90810966 A EP 90810966A EP 0433237 A2 EP0433237 A2 EP 0433237A2
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EP
European Patent Office
Prior art keywords
foam
mat
extreme
core
shot
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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
EP90810966A
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German (de)
French (fr)
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EP0433237B1 (en
EP0433237A3 (en
Inventor
Karl Hofer
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Hofer Karl
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Individual
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Application filed by Individual filed Critical Individual
Priority to AT90810966T priority Critical patent/ATE99973T1/en
Publication of EP0433237A2 publication Critical patent/EP0433237A2/en
Publication of EP0433237A3 publication Critical patent/EP0433237A3/en
Application granted granted Critical
Publication of EP0433237B1 publication Critical patent/EP0433237B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • A63C19/04—Mats or carpets for courts

Definitions

  • the invention relates to a damping mat according to the preamble of claim 1.
  • Jump mats that are suitable for catching athletes after jumps must generally insulate as gently as possible. As a rule, however, they cannot withstand extremely extreme, hard, oblique impacts, blows and other extreme loads. They mostly have covers made of known substances, such as tarpaulin substances, in order to protect the foam core. Long jump in sand is performed outdoors and the shot is hit on the lawn during shot put. In halls, where other mats were previously used, it was difficult to see where, for example, the ball hit or where a long jumper landed. In addition, most conventional mats could not endure such an extreme load, the foam cores were often damaged and torn. The extremely slow and viscous foam used in the invention was also unable to withstand this enormous strain.
  • So-called PU special foams in ester and ether formulations, which can be adjusted from the recipe so that they can have extreme properties.
  • Novel, so-called viscoelastic polyurethane foams are also known, which spring very slowly, so that they tolerate stronger, vertical impacts better, break through less quickly and move back so slowly that one can still see the imprints for a moment.
  • This special foam also does not tolerate extreme loads and oblique impacts, such as those that occur when the ball strikes a shot put, when an athlete lands during a long jump, when a solid object, weight, ball or dumbbell hits, etc.
  • the foam is mostly torn apart by the force and shear effect, especially a strong, oblique impact.
  • Coatings are also known which cover PU foam sheets like a skin.
  • this skin as it is applied in a known manner, is not as tear-resistant and is usually applied only relatively thinly.
  • the anchoring in the foam was usually insufficient, so that the thin skin detached itself or cracked too quickly under such extreme stress.
  • the present invention is based on the object of providing a mat which can withstand extreme loads such as those which result from the impact of a ball or from the landing of an athlete during the long jump or the impact of other heavy, hard objects, without tearing and without to penetrate, and on which you can also see for a moment where the ball has hit or where a long jumper has landed.
  • a viscoelastic, extremely inertly foamed, ester-based polyurethane foam with a density of more than 60 kg / m3 is used in the petrochemical industry. According to DIN 53577, this has a crushing hardness of 6 kPa and can withstand a breaking load of approx. 200 kPa. Such a foam is commercially available. Since the other otherwise comparable DIN specifications (e.g. from the company Nauer, Switzerland) of the normal PU flexible foams are difficult to compare with this foam (it changes under the influence of temperature and becomes softer at higher temperatures and hard at lower temperatures) the specification of further DIN data is dispensed with.
  • DIN 53577 this has a crushing hardness of 6 kPa and can withstand a breaking load of approx. 200 kPa.
  • Such a foam is commercially available. Since the other otherwise comparable DIN specifications (e.g. from the company Nauer, Switzerland) of the normal PU flexible foams are difficult to compare with this foam (it changes under the
  • viscoelastic foam Because its behavior in relation to the action of mechanical forces is extremely dependent. Slow application of force provokes viscous behavior, shock-like application of elastic behavior.
  • This shock-absorbing polyurethane foam offers the desired physical properties, especially in the temperature range of around 15 to 21 degrees Celsius, to withstand the enormous impacts that occur when a ball hits a shot put and intercept the ball so that you can still see the impression for a moment.
  • a protective layer made of a known, tough polyurethane coating composition e.g. applied to Tivoli-Chemie in such a way that it first penetrates into the outermost layer of this foam and crosslinks with it. This strengthens the foam in its outermost main stress zone.
  • the coating skin is anchored in the foam much better. This measure covers the surface of the foam tough and tear-resistant, so that the mat can withstand such extreme loads and impacts, for example, when catching a ball during shot put or when punching with a fist or other loads.
  • the coating also improves the mat's catching properties, the surface becomes more resistant and is also protected against dirt.
  • mats of any size from at least 50 to over 100 millimeters in thickness up to over 10 meters in length and up to over 2 meters in width individually laid out or laid out to form an area of any size and possibly even connected as desired.
  • an area of 150 m2 is preferably laid out in a thickness of 70 millimeters, while for weightlifting mostly only two plates of 2 x 1 meter in a thickness of at least 100 millimeters are used.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Laminated Bodies (AREA)
  • Vibration Dampers (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
  • Polyurethanes Or Polyureas (AREA)

Abstract

The mat consists of an inert, viscoelastic polyurethane foam core which has very good drop and impact absorbing properties and which is additionally provided with, and thus reinforced by, a tough coating made of polyurethane in such a way that said foam can subsequently be used as a landing mat for extreme jumps or as a shot receiving mat for shot putting or even for extreme loading conditions in sport or for protecting man, equipment, etc. <IMAGE>

Description

Die Erfindung betrifft eine Dämpfungsmatte nach dem Oberbegriff des Patentanspruches 1.The invention relates to a damping mat according to the preamble of claim 1.

Sprungmatten, die geeignet sind, Sportler nach Sprüngen aufzufangen, müssen allgemein möglichst sanft dämmen. Sie halten aber in der Regel ganz extreme, harte, schräg auftreffende Schläge, Hiebe und auch sonst extreme Belastungen schlecht aus. Sie weisen meistens Hüllen aus bekannten Stoffen, wie Planenstoffe usw. auf, um den Schaumkern zu schützen. Im Freien wird Weitsprung in Sand ausgeführt und beim Kugelstossen wird die Kugel auf den Rasen gestossen. In Hallen, wenn bisher oft andere Matten eingesetzt wurden, sah man schlecht, wo zum Beispiel die Kugel aufprallte oder wo ein Weitspringer landete. Zudem hielten die meisten konventionellen Matten eine solch extreme Belastung nicht aus, die Schaumkerne wurden oft beschädigt und rissen. Auch der bei der Erfindung eingesetzte extrem träge und zähe Schaum vermochte diese enorme Belastung nicht auszuhalten.Jump mats that are suitable for catching athletes after jumps must generally insulate as gently as possible. As a rule, however, they cannot withstand extremely extreme, hard, oblique impacts, blows and other extreme loads. They mostly have covers made of known substances, such as tarpaulin substances, in order to protect the foam core. Long jump in sand is performed outdoors and the shot is hit on the lawn during shot put. In halls, where other mats were previously used, it was difficult to see where, for example, the ball hit or where a long jumper landed. In addition, most conventional mats could not endure such an extreme load, the foam cores were often damaged and torn. The extremely slow and viscous foam used in the invention was also unable to withstand this enormous strain.

Bekannt sind verschiedene Ausführungen und Modelle von Matten, wie Turnmatten, Sprungmatten und Gymnastikmatten, aus den verschiedensten Schaumstoffen, in verschiedenen Dicken und Ausführungen, mit und ohne Hüllen. Diese Matten und auch blosse Schaumstoffe halten allgemein so extreme Schläge, wie sie zum Beispiel beim Aufprall einer Kugel beim Kugelstossen usw. entstehen, nicht aus, schlagen oft durch oder reissen ein. Auch federn diese meistens so stark, dass die Kugel sofort wieder wegrollt und man keine Eindruckstelle sieht und auch nicht mehr feststellen kann, wo die Kugel aufgeprallt ist.Various designs and models of mats, such as gymnastics mats, jumping mats and gymnastics mats, made of various foams, in various thicknesses and designs, with and without covers, are known. These mats and even bare foams generally cannot withstand such extreme blows as occur, for example, when a ball hits a shot put etc., often break through or tear. Most of the time, these also spring so strongly that the ball rolls away again immediately and you can see no impression and you can no longer determine where the ball hit.

Bekannt sind, neben den üblichen PU-, PE- und anderen Schäumen, sogenannte PU-Spezialschäume in Ester- und Aetherformulierungen, welche von der Rezeptur her so eingestellt werden können, dass sie extreme Eigenschaften aufweisen können.In addition to the usual PU, PE and other foams, So-called PU special foams in ester and ether formulations, which can be adjusted from the recipe so that they can have extreme properties.

Bekannt sind auch neuartige, sogenannte viskoelastische Polyurethanschäume, welche sehr träg federn, so dass sie stärkere, senkrechte Schläge besser vertragen, weniger schnell durchschlagen und sich so langsam zurückstellen, so dass man darin die Eindruckstellen noch einen Moment sieht. Auch dieser Spezialschaum verträgt dermassen extreme Belastungen und schräg auftreffende Schläge wie sie zum Beispiel beim Aufprall der Kugel beim Kugelstossen, beim Landen eines Athleten beim Weitsprung, beim Aufprall von festen Gegenständen, von Gewichten, Kugeln oder Hanteln usw. nicht oder nicht gut. Der Schaum wird meistens durch die Wucht und Scherwirkung insbesondere eines starken, schrägen Aufpralls zerrissen.Novel, so-called viscoelastic polyurethane foams are also known, which spring very slowly, so that they tolerate stronger, vertical impacts better, break through less quickly and move back so slowly that one can still see the imprints for a moment. This special foam also does not tolerate extreme loads and oblique impacts, such as those that occur when the ball strikes a shot put, when an athlete lands during a long jump, when a solid object, weight, ball or dumbbell hits, etc. The foam is mostly torn apart by the force and shear effect, especially a strong, oblique impact.

Bekannt sind auch Beschichtungen, welche PU-Schaumplatten hautartig abdecken. Diese Haut, wie sie in bekannter Weise aufgetragen wird, ist jedoch nicht so reissfest und wird meistens nur relativ dünn aufgetragen. Auch war die Verankerung im Schaum meistens ungenügend, so dass sich die dünne Haut bei so extremer Beanspruchung loslöste oder zu schnell riss.Coatings are also known which cover PU foam sheets like a skin. However, this skin, as it is applied in a known manner, is not as tear-resistant and is usually applied only relatively thinly. The anchoring in the foam was usually insufficient, so that the thin skin detached itself or cracked too quickly under such extreme stress.

Der hier vorliegenden Erfindung liegt die Aufgabe zugrunde, eine Matte bereit zu stellen, welche so extreme Belastungen wie sie beim Aufprall einer Kugel oder bei der Landung eines Athleten beim Weitsprung oder beim Aufprall von anderen schweren, harten Gegenständen entstehen, aushält ohne zu reissen und ohne durchzuschlagen, und auf welche man auch noch einen Moment lang sehen kann, wo die Kugel aufgeprallt ist oder wo ein Weitspringer gelandet ist.The present invention is based on the object of providing a mat which can withstand extreme loads such as those which result from the impact of a ball or from the landing of an athlete during the long jump or the impact of other heavy, hard objects, without tearing and without to penetrate, and on which you can also see for a moment where the ball has hit or where a long jumper has landed.

Erfindungsgemäss wird diese Aufgabe gelöst durch eine Dämpfungsmatte nach dem Patentanspruch 1.According to the invention, this object is achieved by Damping mat according to claim 1.

Im folgenden werden anhand der beiliegenden Zeichnungen Ausführungsbeispiele der Erfindung beschrieben. Es zeigen

  • Fig. 1 eine erfindungsgemässe Kugelstossmattte;
  • Fig. 2 eine erfindungsgemäss beidseitig beschichtete Kugelstossmatte
Exemplary embodiments of the invention are described below with reference to the accompanying drawings. Show it
  • 1 shows a shot mat according to the invention;
  • 2 shows a shot put mat coated on both sides according to the invention

Für die Herstellung einer Matte, nach der Erfindung wird ein in der Petrochemie bekannter, viskoelastischer, extrem trägfedernd geschäumter Polyurethanschaum auf Esterbasis mit einem Raumgewicht von über 60 Kilo/m3 eingesetzt. Dieser weist gemäss DIN 53577 eine Stauchhärte von 6 kPa auf und hält eine Bruchlast von ca. 200 kPa aus. Ein solcher Schaum ist im Handel erhältlich. Da die übrigen sonst vergleichbaren DIN-Angaben (z.B. von der Firma Nauer, Schweiz) der normalen PU-Weichschäume mit diesem Schaum schlecht verglichen werden können (er verändert sich unter Temperatureinfluss und wird bei höheren Temperaturen weicher und bei tieferen Temperaturen hart,) wird auf die Angabe weiterer DIN-Daten verzichtet. Viskoelastischer Schaum wird er deshalb genannt, weil sein Verhalten gegenüber der Einwirkung mechanischer Kräfte in extremer Weise abhängt. Eine langsame Krafteinwirkung provoziert ein viskoses Verhalten, schockartige Krafteinwirkung ein elastisches Verhalten. Dieser schockabsorbierende Polyurethanschaum bietet speziell im Temperaturbereich von etwa 15 bis 21 Grad Celsius die gewünschten physikalischen Eigenschaften, um die enormen Schläge, wie sie beim Aufprall einer Kugel beim Kugelstossen entstehen, auszuhalten und die Kugel so abzufangen, dass man noch einen Moment die Eindruckstelle sieht.For the manufacture of a mat, according to the invention, a viscoelastic, extremely inertly foamed, ester-based polyurethane foam with a density of more than 60 kg / m3 is used in the petrochemical industry. According to DIN 53577, this has a crushing hardness of 6 kPa and can withstand a breaking load of approx. 200 kPa. Such a foam is commercially available. Since the other otherwise comparable DIN specifications (e.g. from the company Nauer, Switzerland) of the normal PU flexible foams are difficult to compare with this foam (it changes under the influence of temperature and becomes softer at higher temperatures and hard at lower temperatures) the specification of further DIN data is dispensed with. It is called viscoelastic foam because its behavior in relation to the action of mechanical forces is extremely dependent. Slow application of force provokes viscous behavior, shock-like application of elastic behavior. This shock-absorbing polyurethane foam offers the desired physical properties, especially in the temperature range of around 15 to 21 degrees Celsius, to withstand the enormous impacts that occur when a ball hits a shot put and intercept the ball so that you can still see the impression for a moment.

Obschon dieser vorgenannte viskoelastische Spezialschaum sehr viel mehr aushält, kommt es sehr oft vor, dass dieser bei extremen Belastungen reisst. Um diesen Schaum nun zu schützen und dauerhafter zu machen, wird eine Schutzschicht aus einer bekannten, zähen Polyurethan-Beschichtungsmasse z.B. der Tivoli-Chemie so aufgetragen, dass diese zuerst in die äusserste Schicht dieses Schaums eindringt und sich mit diesem vernetzt. Dadurch wird der Schaum in seiner äussersten Hauptbelastungszone verstärkt. Gleichzeitig wird dadurch die Beschichtungshaut im Schaum viel besser verankert. Durch diese Massnahme wird die Oberfläche des Schaums zäh und reissfest abgedeckt, so dass die Matte solche extreme Belastungen und Schläge wie sie zum Beispiel beim Auffangen einer Kugel beim Kugelstossen oder bei Hieben mit der Faust oder andere Beanspruchungen entstehen, viel besser aushalten kann. Zudem verbessert die Beschichtung die Auffangeigenschaften der Matte, die Oberfläche wird widerstandsfähiger und ist auch gleichzeitig gegen Schmutz geschützt.Although this viscoelastic special foam can withstand much more, it very often happens that it tears under extreme loads. In order to protect this foam and make it more durable, a protective layer made of a known, tough polyurethane coating composition, e.g. applied to Tivoli-Chemie in such a way that it first penetrates into the outermost layer of this foam and crosslinks with it. This strengthens the foam in its outermost main stress zone. At the same time, the coating skin is anchored in the foam much better. This measure covers the surface of the foam tough and tear-resistant, so that the mat can withstand such extreme loads and impacts, for example, when catching a ball during shot put or when punching with a fist or other loads. The coating also improves the mat's catching properties, the surface becomes more resistant and is also protected against dirt.

Durch diese Kombination von einem sehr trägen, viskoelastischen PU-Spezialschaum, mit einer tief und dick aufgetragenen, elastischen und sehr zähen Polyurethan-Beschichtung, konnte erstmals eine Matte bereitgestellt werden, welche dermassen extreme Belastungen aushält, ohne zu reissen und in welcher man noch einen Moment die Eindruckstelle des Aufpralls sehen kann, wordurch erst das Messer der Stoss-, Wurf- und Sprungweite ermöglicht wird. Es wurde durch die Erfindung erstmals eine Matte geschaffen, welche sich für so extreme Belastungen wie z.B. Kugelstossen, Weitsprung in Hallen usw. eignet. Aber auch für andere Einsatzgebiete, wo extreme Schläge und Stösse aufgefangen werden müssen, kann diese neuartige Matte hervorragende Dienste leisten.This combination of a very inert, viscoelastic PU special foam, with a deep and thick applied, elastic and very tough polyurethane coating, made it possible for the first time to provide a mat that can withstand such extreme loads without tearing and in which one can be used The moment you can see the point of impact, which makes it possible to measure the range of throws, throws and jumps. The invention created a mat for the first time, which is suitable for extreme loads such as Shot put, long jump in halls, etc. is suitable. This innovative mat can also be used for other areas of application where extreme impacts and bumps have to be absorbed.

Je nach Einsatzgebiet werden Matten in beliebiger Grösse, von mindestens 50 bis über 100 Millimeter Dicke bis über 10 Meter Länge und bis über 2 Meter Breite einzeln hingelegt oder zu einer beliebig grossen Fläche ausgelegt und eventuell, je nach Wunsch, sogar miteinander verbunden. So wird zum Beispiel für Kugelstosswettbewerbe vorzugsweise eine Fläche von 150 m2 in 70 Millimeter Dicke ausgelegt, während beim Gewichtheben meistens nur zwei Platten von 2 x 1 Meter in mindestens 100 Millimeter Dicke eingesetzt werden.Depending on the area of application, mats of any size, from at least 50 to over 100 millimeters in thickness up to over 10 meters in length and up to over 2 meters in width individually laid out or laid out to form an area of any size and possibly even connected as desired. For example, for shot put competitions, an area of 150 m2 is preferably laid out in a thickness of 70 millimeters, while for weightlifting mostly only two plates of 2 x 1 meter in a thickness of at least 100 millimeters are used.

Claims (4)

Dämpfungsmatte zum Abfangen von Stössen und dergleichen, insbesondere für den Einsatz im Aufprall- oder Aufsprungbereich bei diversen Sportarten, mit einem Schaumstoffkern und einer Ummantelung, dadurch gekennzeichnet, dass der Kern eine Schicht aus einem trägen, viskoelastischen Polyurethan-Schaum auf Esterbasis enthält und die Ummantelung aus einer verhältnismässig dicken, mit der äusseren Schicht des Kerns vernetzten Beschichtung aus einem Material mit verhältnismässig hoher Reissfestigkeit besteht.Damping mat for absorbing impacts and the like, in particular for use in the impact or jump area in various sports, with a foam core and a sheathing, characterized in that the core contains a layer of an inert, viscoelastic polyurethane foam based on ester and the sheathing consists of a relatively thick coating which is cross-linked with the outer layer of the core and made of a material with a relatively high tensile strength. Dämpfungsmatte nach Anspruch 1, dadurch gekennzeichnet, dass die Beschichtung aus einem Material auf Polyurethan-Basis besteht.Damping mat according to claim 1, characterized in that the coating consists of a material based on polyurethane. Dämpfungsmatte nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass der Kern aus mehreren Schichten zusammengesetzt ist, von denen meistens eine aus viskoelastischem Polyurethan-Schaum besteht.Damping mat according to one of the preceding claims, characterized in that the core is composed of several layers, one of which mostly consists of viscoelastic polyurethane foam. Dämpfungsmatte nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Matte auf beiden Seiten beschichtet ist.Damping mat according to one of the preceding claims, characterized in that the mat is coated on both sides.
EP90810966A 1989-12-12 1990-12-11 Shock absorbing mat Expired - Lifetime EP0433237B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90810966T ATE99973T1 (en) 1989-12-12 1990-12-11 DAMPING MAT.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH445489 1989-12-12
CH4454/89 1989-12-12

Publications (3)

Publication Number Publication Date
EP0433237A2 true EP0433237A2 (en) 1991-06-19
EP0433237A3 EP0433237A3 (en) 1991-11-13
EP0433237B1 EP0433237B1 (en) 1994-01-12

Family

ID=4276430

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90810966A Expired - Lifetime EP0433237B1 (en) 1989-12-12 1990-12-11 Shock absorbing mat

Country Status (3)

Country Link
EP (1) EP0433237B1 (en)
AT (1) ATE99973T1 (en)
DE (1) DE59004226D1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH697891B1 (en) 2007-01-19 2009-03-13 Kybun Ag Fitness and therapy mat for standing and walking.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2510863A1 (en) * 1975-03-12 1976-09-30 Schlemmer Extra Werke Gmbh Gymnastics mat with foam filling and foam covering - with high durability, also for use as mat in swimming pools
EP0168545A1 (en) * 1983-08-12 1986-01-22 Astroturf Industries, Inc. Unitary shock-absorbing polymeric pad for artificial turf
US4627179A (en) * 1985-07-10 1986-12-09 Action Products, Inc. Shock absorbing insole construction
FR2621056A1 (en) * 1987-09-28 1989-03-31 Thomasson Darrouy Ges Floor covering with composite structure designed notably for sports tracks or surfaces

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2510863A1 (en) * 1975-03-12 1976-09-30 Schlemmer Extra Werke Gmbh Gymnastics mat with foam filling and foam covering - with high durability, also for use as mat in swimming pools
EP0168545A1 (en) * 1983-08-12 1986-01-22 Astroturf Industries, Inc. Unitary shock-absorbing polymeric pad for artificial turf
US4627179A (en) * 1985-07-10 1986-12-09 Action Products, Inc. Shock absorbing insole construction
FR2621056A1 (en) * 1987-09-28 1989-03-31 Thomasson Darrouy Ges Floor covering with composite structure designed notably for sports tracks or surfaces

Also Published As

Publication number Publication date
ATE99973T1 (en) 1994-01-15
EP0433237B1 (en) 1994-01-12
EP0433237A3 (en) 1991-11-13
DE59004226D1 (en) 1994-02-24

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