Patent ID: 8079571

Claim:
A shock-absorbing fence comprising: a plurality of main posts provided to stand at a predetermined interval; a guard net provided in a stretched state between the main posts, the guard net having an upper rim and a lower rim adjacent to a ground surface both secured to the main posts; a safety net extending between the main posts and attached between the guard net and the ground surface, the safety net having an upper rim attached to the guard net at a predetermined level higher than the lower rim of the guard net and having a lower rim secured to the ground surface; a plurality of main post support rope members, each main post support rope member coupled between an upper end of a respective one of the main posts and a respective one of the hillside anchors to tether the upper end of the main post to the ground surface; a plurality of safety net support rope members each coupled between the lower rim of the safety net a respective one of the hillside anchors to secure the lower rim of the safety net to the ground surface; and a horizontal support rope member provided along the lower rim of the safety net to assist in securing the safety net to the ground surface, the plurality of safety net support ropes connected between the plurality of hillside anchors and a plurality of points of the horizontal support rope member, wherein the safety net is configured such that, when the guard net receives falling objects and moves toward a deflected configuration in which the lower rim of the guard net is deflected away from the hillside anchors, the safety net extends from a slack configuration in which the safety net includes slack between the upper rim of the safety net that is attached to the guard net and the lower rim of the safety net that is secured to the ground surface toward an extended configuration in which the safety net extends between the guard net and the ground surface to prevent a gap below the guard net and assist in damping impact energy from the falling objects.