| 摘要 |
PROBLEM TO BE SOLVED: To provide a heating device for bending a thermoplastic resin pipe which is free from heating dispersion, is safe in work, and is free from buckling during bending. SOLUTION: A holding part 10 which holds the thermoplastic resin pipe 5 vertically and rotates the pipe axially and a heating part 20 which approaches the vertical pipe and heats the pipe are provided. The holding part can have an axial rotation part 30 which has a rotary shaft which coincides with the axis of the pipe and rotates the pipe and a holding part 40 which has rollers which hold both side parts on the upper side of the pipe between them and rotate freely and holds the pipe vertically. The heating part can have an exothermic part and a heat shielding mechanism for heating a desired range of the pipe between the exothermic part and the pipe. |
