| 摘要 |
PURPOSE: A street light lamp manufacturing method is provided to execute a two step angle control process by using an upper pole and a street light lamp pole arm. CONSTITUTION: An upper pole(20) and a lower pole(30) has a cylindrical shape. The upper pole is connected to the lower part of a street light lamp pole arm(10). The lower pole is connected to the lower part of the upper pole. An angle control protrusion and an angle control groove are formed in the connection part between the upper pole and the street light lamp pole arm. A connection flange(50) interlinks the upper pole and the lower pole. A upper flange(32) is formed in the upper end of the lower pole. A central flange(34) is formed under the upper flange. A lower flange(36) is formed under the central flange. |
