| 摘要 |
PROBLEM TO BE SOLVED: To quickly, easily connect in connecting metal pipes, improve pullout resistance, and easily connect them in a narrow place by miniaturizing the structure of the whole joint. SOLUTION: An elastic seal ring member 6 and a ring bush member 7 are internally fitted in a small-diameter chamber of a joint main body 1, which is formed by penetrating the small-diameter chamber 3' and the large-diameter chamber 3 continuing to the flow hole 4 of a coupled cylindrical wall 2, and an opening circumferential wall part in the rear end formed by the large diameter chamber 3 is positioned in a notched groove 1" and a plurality of projecting walls 1' projecting inward in the radial direction are provided in its rear end side so as to be an engagement wall. The rear side end part of a shaft core hole is made to be a bell-type inclined face 5', screwed into the large-diameter chamber 3 from the end of the slit side of an elastic ring member 5 having a slit in its circumferential wall part, engaged with each of the projection walls 1' with its width thickness, and elastically repulsively locked with a ring swelling wall (P') part in the metal pipe side in the case of insertion in connecting a metal pipe (P) so as to be connected. |
