PURPOSE: To make work of repair, check, etc. perform easily, by stretching a hanging aerial wire and an antenna wire around two pair of pulleys which are opposed to a pair of steel towers and are installed so as to freely oscillate in the horizontal direction by a constant angle, and detaining them to the ground.
CONSTITUTION: On the upper part of a pair of opposed steel towers installed at an interval to each other are provided pulleys 5, 5a so as to be opposed to each other. Between the pulleys is stretched a hanging aerial wire M, between the pulleys 5a, 5a is stretched an antenna wire A, and both the respective ends are detained to the ground with a wire W. In this regard, the hanging aerial wire M hanging-supports the antenna wire A located in the lower part, through a dropper d, at plural places on the stretching wire, so that it is held in the horizontal direction.
NONOMURA HISASHI
USUI YOSHIO
OOHORI RIYOUSUKE
