초록 ▼

The disclosure is of a novel method for constructing a recreational ball-playing court surface from a plurality of square, unitary, elastic, molded thermoplastic sheets having a plurality of support legs and means for interlocking the sheets together. The sheets are divided into square gratings. The

The disclosure is of a novel method for constructing a recreational ball-playing court surface from a plurality of square, unitary, elastic, molded thermoplastic sheets having a plurality of support legs and means for interlocking the sheets together. The sheets are divided into square gratings. The method of the invention comprises assembling the sheets together under tension along the horizontal axes of the sheets. The construction of the court surface according to the method of the invention obviates buckling of the surface due to thermal expansion of the sheets.

대표청구항 ▼

In the method of constructing a recreational, ball-playing court surface from a plurality of square, unitary, elastic, molded thermoplastic sheets having a plurality of support legs on the lower side thereof and means for interlockng said sheets together, disposed about the periphery of said sheets,

In the method of constructing a recreational, ball-playing court surface from a plurality of square, unitary, elastic, molded thermoplastic sheets having a plurality of support legs on the lower side thereof and means for interlockng said sheets together, disposed about the periphery of said sheets, said sheets being divided into secondary squares comprising gratings defining a plurality of square shaped openings through said sheets, which comprises; interlocking said sheets together to form said court surface and anchoring the periphery of the surface formed to an underlying support surface, the improvement which comprises; tensioning said surface along its horizontal axes.