PROBLEM TO BE SOLVED: To effectively inhibit birds from flying around and building nests despite a structure which achieves a very small and simple form and low costs and saves an operator the trouble during the installation.SOLUTION: A bird damage prevention apparatus is installed on a rod like member 5 forming a power transmission construction so as to rotate around the rod like member and includes: a hollow cylindrical base member 12 attached to an outer surface of the rod like member and formed by an insulation material and hollow cylindrical rotation members 20, each of which is rotatably supported while slidably contacting with the base member on an inner surface and is formed by an insulation material.COPYRIGHT: (C)2013,JPO&INPIT【課題】極めて小型、シンプル、低コストであり、且つ取付け手数が少なくて済む構造でありながら、鳥類の飛来、営巣を効果的に阻止することができる。【解決手段】送電用構築物を構成する棒状部材5に対して該棒状部材を中心として回転自在に取り付けられる鳥害防止装置であって、棒状部材の外面に取り付けられる絶縁材料から成る中空筒状のベース部材12と、該ベース部材と内面で摺接した状態で回転自在に支持され、且つ絶縁材料から成る中空筒状の回転部材20と、を備えた。【選択図】図2
