| 摘要 |
PURPOSE:To obtain a lightweight core fastening square pipe without increasing the plate thickness by vertically providing a flat plate having suspension wire holes on the flat plate supporting the contents weight of an electric apparatus at the under face of an upper-core fastening square pipe. CONSTITUTION:It comprises a flat plate 1 and a vertical plate 3 having holes 2 for the wires for suspending the contents, and the flat plate 1 is fixed so as to receive the contents weight at the under face of an upper-core fastening square pipe 4. Since there is provided a structure receiving the contents weight of an electric apparatus at the under face of the upper-core fastening square pipe 4, there is no eccentric load to the square pipe, so that there is no occurrence of an unnecessary bending moment. Accordingly, it is unnecessary to increase the strength of the square pipe, and the core fastening square pipe can be made lightweight without increasing the plate thickness. |
