| 摘要 |
A portable playing court demarcation apparatus, for marking the bounds of a rectangular playing court, comprises a flexible outer boundary demarcation element the ends of which are joined to one another to form an endless element of a length greater than the perimeter of the playing court to be marked. The demarcation element includes four loop segments, each of the loop segments forming a corner loop of predetermined circumference, the element crossing itself at a corner point at the base of each loop at a generally right angle such that the longitudinal distance along the demarcation element between consecutive loops is alternately equal to the court length and the court width. The playing court demarcation apparatus may be fabricated by providing an elongate flexible element having a first and second end and a length greater than the distance about the perimeter of the court, attaching the first and second ends of the element to one another to form an endless loop, defining two court end segments of the loop a length equal to the width of the game court and two court side segments of the loop with a length equal to the length of the court to occur alternately about the loop and to be separated by four loop segments of generally uniform length, rotating the two court end segments one full revolution about their longitudinal axis to cause each of the looop portions to twist one full revolution over its length, and attaching the ends of each loop segment to one another to form corner loops.
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