Synthetic grass playing field surface

Details Synthetic grass playing field surface Synthetic grass playing field surface

A - Human Necessities

63

C

273/1

A63C 19/00 (2006.01) D06N 7/00 (2006.01) E01C 13/08 (2006.01)

Patent

CA 1235160

SYNTHETIC GRASS PLAYING FIELD SURFACE ABSTRACT OF THE DISCLOSURE A playing field surface for active running and body contact type sports, such as football and the like, is formed of a stabilized, flat base surface covered by an underpad, over which is laid a synthetic pile fiber carpet. A covering of sand-like granules is applied upon the carpet to substantially fill the spaces between the fibers. The underpad is made of reclaimed rubber, sliver-like small particles which are bonded together into a thick, water pervious mat. The lower surface of the underpad is formed with widely and regularly spaced apart, dimple-like indentations and downwardly extending, rounded hills that contact the base surface. The hills are separated by rounded indented ridges which are of a lesser depth than the indentations. Each of the indentations is surrounded by a number of hills and ridges to provide resilient dome-like, interconnected, downwardly open pockets in the bottom surface of the underpad. The piles are formed of U-shaped, double bent fibers having bights looped through and extending downwardly beneath a carpet base sheet to form numerous welts. The welts are aligned in parallel serpentine rows and dig into and frictionally interlock with the particles forming the upper surface of the underpad. The playing field surface provides good support for lateral foot movements and resiliently absorbs and disperses the forces of foot and body impacts.

518333

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