WIRE HARNESS, WIRE HARNESS MANUFACTURING METHOD AND WIRE HARNESS MANUFACTURING APPARATUS

摘要

A wire harness manufacturing method prevents inadvertent deformation of thermoplastic material and separation of thermoplastic material. A predetermined part of an electric wire 91 is accommodated in a through hole of a tubular body formed by connection between a first and second nest members (123, 124) of a nozzle (12), by integrally connecting first and second case body members (121, 122) of the nozzle (12), with the predetermined part of the electric wire 91 therebetween. An approximately tubular covering member (92) covering the predetermined part of the electric wire (91) is molded integrally with the thermoplastic material, by discharging thermoplastic material plasticized by a material plasticizing unit (11) from thermoplastic material discharge orifices (1213) and (1223) in the nozzle (12) to the outer periphery of the electric wire (91), while moving the electric wire (91) and the nozzle (12) relatively to each other.

主权项

1. A wire harness manufacturing method comprising:
covering an outer periphery of a predetermined part of a single or a bundle of a plurality of electric wires, in which a conductor is coated with a sheath member, with a covering member, formed by integral molding in an approximate tubular shape, by heating thermoplastic resin material to a temperature at which the thermoplastic resin is plastic-deformable and which is lower than a fusing point and discharging the thermoplastic resin material to the outer periphery of the predetermined part from a plurality of directions in a circumferential direction; directly attaching an inner peripheral surface of the tubular-shaped covering member to a part of an outer peripheral surface of the electric wire positioned outside the bundle of electric wires; and forming a gap between the respective electric wires.