| 摘要 |
<p>PURPOSE:To obtain a twist preventive appliance for an aerial wire, which is easily wound on an electric wire and on which an excessive accretion of snow is not generated, by coarsely winding first and second spiral rod bundles on the outer circumference of a linear core, forming twisting-joining constriction sections on both sides, and forming the nose sides of the constriction sections in electric-wire coarse winding sections wound on the transmission line. CONSTITUTION:First and second spiral rod bundles 1a, 1b are wound on the outer circumference of a linear core 2 under a coarse state. Twisting-joining constriction sections 4, 4 are formed on both sides of terminal caps 3, 3 on both ends of the linear core 2, and electric-wire coarse winding sections 5, 5 are shaped in each spiral rod bundle section, tips of which are separated. The spiral rod bundle end sections of the electric-wire coarse winding sections 5, 5 are wound coarsely on a transmission line (w) in a twist preventive appliance 1 for an aerial wire constituted in this manner, and the coarse winding sections 5, 5 are sagged at space (d) among the sections 5, 5 and the transmission line (w). Accordingly, the twist preventive effect of the transmission line by snow attaching is improved, winding operation on the transmission line is facilitated, and the rotation of attached snow while sliding on the surfaces of the electric wires can be prevented.</p> |
