| 摘要 |
PROBLEM TO BE SOLVED: To provide the structure of a steel pipe joint which quickly allows steel pipes connected to each other without welding or coupling them with screws, when vertically connecting the steel pipes. SOLUTION: A female spline joint 2 is fixed to the top end of a lower steel pipe 1, which is one of two pipes to be joined to each other, and a male spline joint 6 is fixed to the lower end of an upper steel pipe 5, which is the other pipe. These spline joints 2 and 6 are vertically fitted to each other and then fixed by means of a fixing means such as bolts 14. COPYRIGHT: (C)2005,JPO&NCIPI
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