| 摘要 |
PROBLEM TO BE SOLVED: To provide a junction structure capable of stably connecting two members with good workability. SOLUTION: This junction structure is provided with a junction bar 1 provided in a first segment Sa and a junction tool 2 provided in a second segment Sb and holding the junction bar 1 inserted into it. The junction tool 2 is provided with a housing 3, an inserted member 5 having a passage 4, through which the junction bar 1 can be inserted, deformable to expand or shrink the passage 4, and having exciting force in the direction to shrink the passage 4, a projection 7 made smaller in diameter than the junction bar 1 when the passage 4 is shrunk, and a diameter expanding member 6 provided movably in a tapered passage 4b and capable of maintaining the passage 4 of the projection 7 larger in diameter than the junction bar 1 when it is arranged on the side of the projection 7 in the tapered passage 4b.
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