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 apparatus for manufacturing a wire harness having an electric wire and a covering member, molded with thermoplastic material, that covers a predetermined part of the electric wire, comprising:
a material plasticizing unit that plasticizes the thermoplastic material to a softened and plastic-deformable state upon reception of an external force; and a nozzle that has a through hole, integrally connectable and separable into plural parts, which can accommodate the predetermined part of the electric wire when integrally connected, and a thermoplastic material discharge orifice which continuously surrounds an outer peripheral surface of one end of the through hole, wherein, when the nozzle is integrally connected, the covering member that covers the predetermined part of the electric wire can be integrally molded with the thermoplastic material, by discharging the thermoplastic material, plasticized by the material plasticizing unit from the thermoplastic material discharge orifice formed in the nozzle, on the outer peripheral surface of the predetermined part of the electric wire projected from one end of the through hole, in a state where the predetermined part of the electric wire is accommodated in the through hole formed in the nozzle.