Framework supporting net used for variety of different purposes has four curved frame struts fastened at bottom ends to corners of square groundsheet and fastened together with spreader struts at top

摘要

A fitting (20) at the apex of the structure has four swivel connections to accommodate the top ends of the four curved struts (50). A cord (30) extends down from the apex fitting through a spider (40) holding four spreader struts (80) engaging the curved struts a short distance from their top ends. The bottom end of the cord is free. The bottom ends of the struts engage in the corners of a square groundsheet (60). A net (70) is draped over the curved struts and has an inverted U-shaped opening between two adjacent struts on one side.