| 摘要 |
<p>PURPOSE:To provide a pipe coupling capable of resisting internal pressure and earth pressure as providing high rigidity in the radial direction and simultaneously to be expanded or bent easily in the line axial direction and to enable the displacement of a pipe member to be connected, preventing the damage from occurring. CONSTITUTION:Each flange 20 is installed at both ends of a tubular part 10, while this tubular part 10 is composed of setting up a base diametral part 40 being high rigidity in the radial direction reinforced with a reinforced steel side pipe 22 and a reinforced steel flat ring 43 inserted through, and a flexible part 30 being thin in thickness and capable of deforming a form bulged to the outer diametral side and partial elastic deformation alternately as the formation.</p> |
