| 摘要 |
The present invention relates to a prefabricated pole for road facilities including a street lamp, a signal lamp, a road sign board, and a tower pole. A conventional pole body is prefabricated in multi-stages by assembling the divided two parts of the upper part and middle part, or divided three parts of the upper part, middle part, and lower part depending on the height. Therefore, the conventional pole body has a main problem where a jointed part is released (danger of falling or the like is caused by rotation and movement of a light device, a signal lamp, a sign board or the like). A technical point of the present invention is to solve this problem of the convention pole body and improve the assembled pole′s integrity. According to the present invention, the upper pole and lower pole are assembled by using a sliding surface and a wedge type-close contact inducing support body to secure the assembled integrity. A perfectly restricted structure of the pole can prevent a coupled device from being released by a strong wind and vibration of a vehicle or the like, thereby remarkably improving a structural stability and a strong coupling force of the prefabricated pole. Moreover, according to an embodiment of the present invention, when an arm support pole positioned on the uppermost end and the upper pole are assembled, a pin-shaped stopper is formed to correspond to gear teeth or a concave and convex part with a wave-shape in order to originally block a rotation of the arm support pole (a rotation of the arm support pole depending on releasing of the coupled part). When a changed situation with respect to the arm support pole, such as a change of an installation site or a change of a design, occurs, the arm support pole can be re-assembled by adjusting an angle of the arm support in an easy and convenient manner, thereby improving workability and maintenance feasibility. As such, the entire street lamp is originally prevented from being twisted, thereby securing superior durability and quality of the street lamp. |
