公开(公告)号：WO9501817A3

公开(公告)日：1995-04-27

申请号：PCT/US9407431

申请日：1994-06-30

Applicant: SPORT SUPPLY GROUP INC

Inventor： ROBINSON TROY ,  STOUT ROGER

IPC: A63B6/02 ,  A63B26/00

CPC classification number: A63B6/02

Abstract: A contoured landing surface system and a method of making thereof are provided. The system matches landing surface or pit density to the force generated by an athlete's descending body to cushion the athlete's fall based on air displacement rather than foam characteristics. The system is designed to compensate for variables such as velocity, mass and surface area at the point of impact by utilizing a multilayered structure (10), each layer (10, 14, 16) having a plurality of patterned ridges thereon and a network of air channels therebetween. The ridges (16) and air channels (20) of adjacent layers extend perpendicular to the ridges (18) and air channels (20) of each other. Preferably, the landing surface is constructed using layers of foam having the same density.