| 摘要 |
PROBLEM TO BE SOLVED: To provide a light-weight fence-like pigeon-proof net, constructed in a job site and capable of effectively blocking an opening part of a veranda of a multistoried building and not obstructing visual field. SOLUTION: This yarn is obtained by coating a metallic wire having a diameter of 0.1 mm with resin or braiding two to three silk gut-like yarns. Warps are arranged at intervals of 20 cm of 40 cm, and wefts are arranged at intervals of 5 cm to 35 cm to be shaped like a fence with unequal spaces, and with fence-like net is fixed with the upper part inside the outer wall and with the lower end projected to the outside of an outer wall.
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