| 摘要 |
PROBLEM TO BE SOLVED: To provide a pipe joint structure for high pressure fluid exhibiting a stable sealing effect for a long time, in which a pipe joint and a part to be connected are easily manufactured at a low cost, in a straight pipe joint screwed in a threaded hole, an L-shaped pipe joint, a T-shaped pipe joint, a cross pipe joint and the like. SOLUTION: In the pipe joint structure for high pressure fluid where a pipe joint 1 is mounted in a state to be screwed in a female screw 22 formed vertically to the flat surface of the part 20 to be connected, a crown-form crown member 9 is formed of a metal having high rigidity. Further, the crown member 9 is formed with an upper surface being smooth and an under surface being flat such that the crown member 9 is not rotated by a fastening member 15. Further, an elastic member 10 is formed of a thick elastic material formed in a cylinder where the diameter of the under surface is smaller than the diameter of the upper surface. Further, the elastic member 10 is situated at the internal part of the crown member 9, and the crown member 9 in which the elastic member 10 is situated is constituted between the part 20 to be connected and the fastening member 15. COPYRIGHT: (C)2004,JPO&NCIPI
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