| 摘要 |
PURPOSE: A connected synthetic resin pipe using a foam ring is provided to prevent water leakage by integrally forming a one-end collar to a side of the connected synthetic resin pipe, forming a ring insertion hole in the one-end collar, installing the foam ring covered with a heat generation member to the ring insertion hole, and heating the heating generation member from the outside of the synthetic resin pipe. CONSTITUTION: In connected synthetic resin pipes using a foam ring(7), a one-end collar(1) is installed to a side of a synthetic resin pipe(2') and water leakage is prevented by inserting a synthetic resin pipe(2) from the opposite side. A ring insertion hole(5) is covered with a protrusion(6) on the outside of the bore of the of a pipe insertion hole(4) of the one-end collar. The foam ring is inserted in the ring insertion hole and is covered with a heat generation member(8). If the synthetic resin pipe is inserted in the foam ring, the foam ring is foamed through the heating generation member to which a terminal and a lead wire are connected.
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