| 摘要 |
PURPOSE:To provide a pipe joint mold capable of molding a pipe joint for a leftwardly falling gradient and a pipe joint for a rightwardly falling gradient only by altering the attaching direction of a first mold among a plurality of molds constituting the pipe joint mold. CONSTITUTION:A pipe joint mold 26 for molding a pipe joint 1a having a cleaning port connection cylinder 5a and sewer pipe connection cylinders 6a, 7a receiving a sewer pipe is equipped with a mold 27a for a cleaning port connection cylinder and the mold 27a has a groove 28 molding a mouth edge 13a so that the straight line 20a passing the parts becoming the highest and lowest parts of the mouth edge 13a of the cleaning port connection cylinder 5a forms a gradient of 2/100 with respect to a center axial line 15a on the basis of the height of the center axial line 15 of a sewer pipe. By altering the attaching direction of the mold 27a, the mouth edge 13a can be molded so that the straight line passing highest and lowest positions of the mouth edge 13a passes the position symmetric to that before alteration with respect to the center axial line 15a of the sewer pipe. |
