| 摘要 |
PROBLEM TO BE SOLVED: To provide joint structure adopting metal-touch seal structure, and protecting a seal face even if the seal face hits on a wall or a floor in unexpected falling or the like. SOLUTION: The joint structure of a flexible pipe includes: the flexible pipe 1 of which the tip part has a tapered part 6 with enlarged diameter; joint pipes 7, 8 each having inner seal face 14 abutting on an inner face of the tapered part 6 of the flexible pipe 1; and a cap nut 9 having an outer seal face 23 abutting on an outer face of the tapered part 6 of the flexible pipe 1 when the cap nut is screwed with the joint pipe 7, 8 and thereby to hold the tapered part 6 between the outer seal face and the inner seal face 14 of the joint pipe 7, 8. A tubular projection part 15 extended from a tip of the inner seal face 14 in an axial direction is formed to tip parts of the joint pipe 7, 8. COPYRIGHT: (C)2011,JPO&INPIT |
