MANUFACTURING METHOD FOR SAFETY NET FENCE HAVING RINGS FORMED AGAINST FALLING STONE OR SNOWSLIDE

摘要

PROBLEM TO BE SOLVED: To provide a manufacturing method for a safety net which can be produced easily and is strongly resisting against a load with its wire coil strongly held respectively as a ring.;SOLUTION: This is a manufacturing method for a safety net comprising mutually coupled rings 1. A wire 2 is inserted almost in an axial direction and formed by curving it to rings 1 having several coils. When supplying the wire 2, it is passed through two members 3, 4 respectively closed fully but a through hole 4' is made in both the members. The wire is curved to form the ring 1, and each coil is inserted through the members 3, 4 until the through hole 4' of the two members 3, 4 is almost filled up with the wire 2. Each ring 1 resists persistently against a load and also can be easily produced and therefore the wire loops can be strongly held together within the ring.;COPYRIGHT: (C)2006,JPO&NCIPI