PROBLEM TO BE SOLVED: To effectively prevent nest building.SOLUTION: An apparatus for preventing nest building includes: mounting fittings 2 and 3 arranged on both end sides of a cross arm 101 a plurality of supporting rods 4 arranged in the mounting fittings 2 and 3 and a plurality of guts 5 arranged between the opposing supporting rods 4. The supporting rods 4 are arranged so that the plurality of guts 5 cover an electric wire 103 located in an upper peripheral part of the cross arm 101.COPYRIGHT: (C)2013,JPO&INPIT【課題】 営巣をより効果的に防止する。【解決手段】 腕金101の両端側に配設される取付金具2、3と、取付金具2、3に配設される複数の支持棒4と、対向する支持棒4間に配設される複数のテグス5と、を備え、複数のテグス5が腕金101の上方周辺に位置する電線103を覆うように、支持棒4が配設されている。【選択図】 図1
