| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a branch pipe joint for sewerage which is short in execution time and excellent in sealing ability. SOLUTION: In a branch pipe joint to connect a sewerage main pipe 1 to a branch pipe 3, the branch pipe joint is put upon the main pipe 1 and stuck to the pipe 1, and a rubber joint external body 5 into which the branch pipe 3 is inserted from its tip is pressed from its outside with a pressing member 6 and abutted on the inner wall of an open hole 1a, and an annular joint inner body 7 made of a rigid body for supporting the branch pipe 3 is inserted, and water expansion rubber W is filled up in a gap between the branch pipe 3 and the rubber joint external body 5. The rubber joint external body 5 and the pressing member 6 are fastened with a main pipe side band 8a, and an existing part of the water expansion rubber W in the rubber joint external body 5 is fastened from the outside with a branch pipe side band 8b.</p> |
