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US 5,234,738 AGranted
Resilient tile for recreation surfaces
AssigneeCarlisle Tire & Rubber Company
InventorTom H. Wolf
Life of this patent
Estimating the term…
Abstract
Resilient tiles having substantially uniform impact attenuation over the entire surface thereof are disclosed. The tiles of the invention have a plurality of spaced, elongated peripheral ridges and a plurality of truncated, conical legs inboard of the peripheral ridges which combine to provide the substantially uniform impact attenuation of the tiles.
Claims11
A resilient tile having improved, uniform shock absorbency, comprising:
- an upper tile region having upper and lower surfaces and a substantially uniform thickness as measured in the vertical direction;
- a plurality of spaced ridges integral with and extending downwardly from said lower surface of said upper tile region at the periphery thereof, said ridges each having a bottom surface;
- and
- a plurality of truncated, conical legs integral with and extending downwardly from said lower surface of said upper tile region inboard of said spaced, peripheral ridges, said legs each having a bottom surface;
- all of said conical legs and said peripheral ridges having a substantially uniform height, the ratio of said height to said upper tile region thickness being in the range of about 1.33:1 to 3.33:1;
- said tile having a concentration of conical legs in the range of about 34-45 legs/ft.sup.2, and said tile having a density at a location adjacent said upper surface of said upper tile region in the range of about 850-900 kg/m.sup.3, a density at a location adjacent said lower surface of said upper tile region of about 750 kg/m.sup.3, and a density at a location adjacent said bottom surface of any one of said conical legs of about 550 kg/m.sup.3.
3 more elements
A resilient tile having improved, uniform shock absorbency, comprising:
- an upper tile region having upper and lower surfaces and a substantially uniform thickness as measured in the vertical direction, said lower surface of said upper tile region comprising a peripheral region and a central region;
- a plurality of spaced ridges integral with and extending downwardly from said lower surface of said upper tile region in said peripheral region, said ridges each having a bottom surface;
- and
- a plurality of truncated, conical legs integral with and extending downwardly from said lower surface of said upper tile region in said central region, said legs each having a bottom surface and said legs spaced with a center-to-center distance of approximately 17/8";
- all of said conical legs and said peripheral ridges having a substantially uniform height and the ratio of said conical leg height to said upper tile region thickness in the range of about 1:33:1 to 3.33:1;
- said tile having a concentration of conical legs in the range of about 35-45 legs/ft.sup.2, said tile having a density at a location adjacent upper surface of said upper tile region in the range of about 850-900 kg/m.sup.3, a density at a location adjacent said lower surface of said upper tile region of about 750 kg/m.sup.3, and a density at a location adjacent said bottom surface of any one of said conical legs of about 550 kg/m.sup.3.
3 more elements
Dependencies are inferred from the claim text.