Insulating coated wire and method for manufacturing the same

A method for manufacturing an insulating coated wire, the method comprising:

• preparing an insulating coated wire material that includes a center conductor and an insulating coating made of an insulating thermoplastic resin material and covering the center conductor;
• arranging a metal mold on the circumference of at least a portion in the axial direction of the insulating coated wire material, the metal mold having an inner surface with a portion having a shape protruding outwardly in the radial direction with respect to the outer circumferential surface of the insulating coated wire material;
• and
• forming, on the insulating coating, a bending auxiliary section that has a shape along the inner surface of the metal mold, by generating a pressure difference in which a pressure inside the insulating coating is higher than a pressure outside the insulating coating within the metal mold in a condition in which the insulating coating is heated within the metal mold to a temperature at which the thermoplastic resin material constituting the insulating coating is softened, the bending auxiliary section being configured such that an insulating coating thickness thereof is smaller than an insulating coating thickness of the other portion, and having a shape that facilitates bending of the insulating coated wire by elongation deformation thereof.