| 摘要 |
<p>PROBLEM TO BE SOLVED: To facilitate connecting work as well as to certainly carry out sealing treatment. SOLUTION: This joint is constituted of a butt member 3 furnished with a head end part having a flange part free to butt on one end and a base end part 3B having a screw part 3b free to screw and fix on an end part of a pipe 1 on the other end, exterior members 4 to cling to the flange parts of both of the butt members 3, 3 from their diametrical direction in a state where the butt members screwed and fixed in the pipe 1 are butted to each other and a fastener 5 to operate the flange parts to the side for them to approach each other by operating this exterior member 4 in the diametrically contracting direction. The fastener 5 is constituted free to operate and fasten from above.</p> |
