| 摘要 |
<p>PROBLEM TO BE SOLVED: To improve the strength and safety of an imitation-wood communication tower. SOLUTION: A branch mounting pipe 15 made of a metal is fixed at the base end of the mounting pipe by welding toward the direction in which the bough 30 of a support 10 made of a metal as a trunk disposed upright on a ground is to be extended at a position, where the bought 30 is to be installed. The branch mounting pipe 15 and the base end section of a pipe 31 for the bough are inserted into a cylindrical body 16 for coupling made of the metal, and the branch mounting pipe 15 and the cylindrical body coupling and the base end section of the pipe 31 for the bought and the cylindrical body 16 for coupling are fixed by bolts 17, 18, 36 respectively.</p> |
