| 摘要 |
PROBLEM TO BE SOLVED: To provide a folding jig for a pipe coating layer having a simple configuration and enabling the coating layer at a pipe end to be easily folded back.SOLUTION: A folding jig 10 for a coating layer 12 of a resin pipe 11 is a jig for folding the coating layer 12 at an end part of the resin pipe 11 while rotating. An outer periphery of a cylindrical insertion cylinder 13 inserted between the resin pipe 11 and the coating layer 12 is provided with a plurality of inner periphery side guide ribs 14 in a circumferential spaced-apart relation so as to expand a diameter of the coating layer 12. A supporting plate 15 is extended out of a non-insertion side end part n of the insertion cylinder 13, and the supporting plate 15 is provided with outer periphery side guide ribs 17 in a specified peripheral spaced-apart relation so as to fold the coating layer 12 of which diameter is expanded with the inner periphery side guide ribs 14. |
