Patent ID: 9216339
Filing Date: 2015-12-22
Classification: A63B

Abstract:
1. A ball net structure comprising: a base; two tilted metallic pipes tilting outward; two resilient rods each having an insertion end, with the insertion ends inserted into the two tilted metallic pipes, respectively, and fixed in place, with the two tilted metallic pipes being longer than the two resilient rods made from spherical fiber or carbon fiber, to enable the two resilient rods to bend to achieve optimal curvature and produce an evenest and largest tensile force; a net body having a first edge and a second edge which are disposed around the two resilient rods, respectively, with the two resilient rods bending to produce a uniform outward tensile force for keeping the net body flat and tight, wherein a plastic sheet edge-binder is disposed on each of four edges of the net body; two net-clamping shells for clamping the plastic sheet edge-binder and the first edge or the second edge of the net body; and a fixing structure disposed on each of the net-clamping shells and adapted to fix the net-clamping shells in place, thereby allowing the plastic sheet and one of the first edge and the second edge of the net body to bear any force jointly and equally and incur uniform distribution, rather than concentration, of stress, thereby extending the service life of the net body, wherein a cylindrical edge-binder is disposed at one of the first edge and the second edge, has therein a plastic post insertedly disposed, and is outwardly and circumferentially provided with a hook-and-loop female side of the fixing structure, wherein the hook-and-loop female side of the fixing structure is disposed at a periphery of the cylindrical edge-binder, with the net-clamping shells being of high rigidity, wherein a hook-and-loop male side of the fixing structure is disposed in a manner to face a direction in which the high-rigidity net-clamping shells clamp the plastic sheet edge-binder, wherein the hook-and-loop male side matches the plastic post in shape and engages with the hook-and-loop female side, wherein, with the net body being tightened, the hook-and-loop male and female sides produce opposite tensile forces, respectively, to enable the hook-and-loop male side to be curved to match an arcuate surface of the plastic post for engagement with the hook-and-loop female side, thereby enabling the hook-and-loop male side to have a large engagement area and arcuate multidirectional force components to thereby reduce the tensile forces but enhance a binding forces of the hook-and-loop male and female sides.