PROBLEM TO BE SOLVED: To provide a technology for integrating a pair of wiring fitting tools by an impeller shaft and coupling rods and for fitting the fitting parts of the wiring fitting tools in the state where the impeller shaft with a number of rotary impellers mounted in a rotatable manner and the coupling rods are provided, especially in relation to a bird damage prevention tool by which a number of rotary impellers for preventing birds from perching on the wiring are indirectly fitted to the wiring via the wiring fitting tools.SOLUTION: In a bird damage prevention tool 1, end portions of an impeller shaft 3 with a number of rotary impellers 5 mounted in a rotatable manner are supported by shaft support parts 21 of a pair of wiring fitting tools 2a and 2b, thereby preventing birds from perching on wiring 7. Each of the rotary impellers 5 is formed by integrally molding a cylindrical part 51 which is mounted on the impeller shaft 3 in a rotatable manner, and three rectangular vanes 52 at an equal angle and in a radial shape. The pair of wiring fitting tools 2a and 2b is fitted to the wiring 7 in a freely swingable state by fitting parts 22 in the state where the impeller shaft 3 with a number of rotary impellers 5 mounted in a rotatable state and coupling rods 4 are provided.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2017,JPO&INPIT【課題】鳥類が架線にとまることを防止する多数の回転羽根車を架線取付具を介して架線に間接的に取付ける鳥害防止具に係り、特に、一対の架線取付具を、羽根車用軸及び連結棒により一体化するとともに、多数の回転羽根車を回転可能に装着した羽根車用軸及び連結棒を備えた状態で、架線取付具の取付部を架線に取付けるようにした技術である。【解決手段】多数の回転羽根車5を回転可能に装着した羽根車用軸3の端部を一対の架線取付具2a、2bの各軸支持部21に支持して、鳥類が架線7にとまることを防止する鳥害防止具1であって、各回転羽根車5は、羽根車用軸3に回転可能に装着する筒状部51と、等角度で放射状の3個の矩形状の翼52とを一体成形により形成しており、一対の架線取付具2a、2bは、多数の回転羽根車5を回転可能に装着した羽根車用軸3及び連結棒4を備えた状態で、取付部22により架線7に搖動自在に取付けたものである。【選択図】図1
