Method for manufacturing connector-integrated resin tube

A method for manufacturing a connector-integrated resin tube (1, 301), the connector-integrated resin tube (1, 301) comprising a curved portion, the method comprising:

• a fitting step (S3, S13, S23) in which an end portion (21A, 21B) of a resin tube material (5) including a straight tube portion (21, 22, 24) is fitted into an end portion (31, 41) of a connector (3, 4) of a tubular shape;
• a joining step (S4, S14, S24) in which the end portion of the resin tube material and the end portion of the connector that have been fitted in the fitting step are joined by laser welding, after the fitting step;
• a heating holding step (S5, S15, S25) in which a posture holding die (7) including a bending processing portion (71) for bending processing of the straight tube portion is used to hold the straight tube portion of the resin tube material to which the connector is joined in the joining step in a heated and bent state at the bending processing portion of the posture holding die, after the joining step;
• and
• a cooling step (S6, S16, S26) in which the straight tube portion that has been heated and bent in the heating holding step is cooled, after the heating holding step.