PROBLEM TO BE SOLVED: To provide an electric wire supporting instrument that can freely adjust the height of an electric wire in an electric fence support.SOLUTION: The electric wire supporting instrument 1 includes: a cylindrical body 2 in which an opening 3 is formed on both ends and a plurality of slits 4 are arranged on one end approximately parallel to the central axial line a cap member 5 detachably attached to one end of the body 2, which has a diameter smaller than that of the one end of the body 2 and a projection member 6 formed to project from an outer surface of the body 2. The cap member 5 also has a cylindrical shape whose both ends are open. The projection member 6 is composed of a first projection member 6A and a second projection member 6B arranged separately from the first projection member 6A.COPYRIGHT: (C)2013,JPO&INPIT【課題】電気柵用支柱において電線の高さ調節を自由に行なうことができる電線支持器具を提供する。【解決手段】電線支持器具1は、両端に開口部3が形成されていると共に、一端に中心軸線に対して略平行に複数のスリット4が設けられた円筒形状の本体2と、本体2の一端に着脱可能に取付けられると共に、本体2の一端の径よりも小さい径を有するキャップ部材5と、本体2の外側表面に突出形成された突起部材6とを備える。キャップ部材5も、両端が開口した円筒形状を有している。突起部材6は、第1の突起部材6Aと、第1の突起部材6Aから離れて配置された第2の突起部材6Bで構成されている。【選択図】図1