摘要 |
<P>PROBLEM TO BE SOLVED: To provide a rope ladder which is light in weight, easy to store on a rotating shaft, and easy to use. Ž<P>SOLUTION: The rope ladder 10 has a ladder body 15 obtained by knitting ropes 16 like a hexagonal net. In the ladder body 15, vertexes of a hexagon of each hexagonal hole 18 are located at upper and lower locations, and oblique sides of each hexagonal hole are each formed of a single rope while vertical sides of the same are each formed of two ropes overlapping on each other. Further the number of ropes in cross section at an optional location in a direction orthogonal to a longitudinal direction of the ladder is made constant. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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