| 摘要 |
PURPOSE:To perform disassembly and assembly n a short time, by a method wherein a recess section is formed on the one side connection section of respec tive single unit leaders, wherein a projection section thrust into the recess sec tion is formed on the other side connecting section to connect, both sections together, and wherein the connecting section are removably fixed via pins. CONSTITUTION:At the upper section of a lower leader 2a, a projecting bracket 9 is fixed with bolts 6 and nuts 7. At the lower section of an intermediate leader 2b, a recess bracket 8 is fixed with the bolts 6 and the nuts 7. After the recess bracket 8 and the projecting bracket 9 are connected together and the slots of the recess and projecting sections are made to coincide with each other, pins 10 are inserted into the slots to connect the lower leader 2a to the intermediate leader 2b. Besides, in the same manner, an upper leader is con nected to the intermediate leader 2b.
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