| 摘要 |
PROBLEM TO BE SOLVED: To make it possible to store speakers in the narrow inside of an information displaying pole and to transmit disaster prevention information to all directions from the pole by longitudinally mounting three speakers whose opening faces each side surface thereof in the inside of the hollow pole body having a triangle shape in section. SOLUTION: A column body 1 composed of an aluminum alloy having a triangle shape in section which is an extrusion molded in a hollow shape is erected on the ground. In a hollow part 2 formed therein, a red-color rotating lamp 30 is mounted from the above, then an accommodation chamber 13 which stores therein a monitoring camera if required is set, and three speaker units 51-53 the openings 51a-53a of which are made open to three directions of the pole 1 are mounted longitudinally just below the chamber 13. On the top of the pole body 1, a top plate 9 is mounted for preventing intrusion of rainwater or the like. Accordingly, the three speakers 51-53 can be accommodated in the narrow hollow inside, and with horns made open to each of the side surfaces of the body 1 disaster prevention information or the like can be transmitted to all the directions from the pole 1. |
