| 摘要 |
PROBLEM TO BE SOLVED: To provide a pipe connection structure for preventing the breakage of each pipe member and a connection member when great vibration is imparted to each pipe member. SOLUTION: A fitting portion 28 formed at the upper end 27a of the cylindrical connection member 27 is fixed to the lower end 21b of a joint body 21 of an inner sub pipe joint 14. The lower end 27b of the connection member 27 is inserted into a straight pipe 15 of the inner sub pipe 13 so as to be movable in the straight pipe along the axis of the straight pipe for allowing a change of a relative position between the inner sub pipe 13 and the joint body 21 to absorb an outer force when operating thereon. COPYRIGHT: (C)2007,JPO&INPIT
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