Wire connection structure, wire connection structure manufacturing method, and wire assembly

A manufacturing method of a wire connection structure for electrically connecting ends of a plurality of core wires, each of which is exposed by stripping a coating at an end region of each of a plurality of wires arranged in parallel, to terminals corresponding to the plurality of wires, the manufacturing method comprising:

• arranging a pair of wire guiding jigs having a plurality of wire guiding grooves formed to correspond to respective outer diameters of the plurality of wires at a predetermined distance;
• aligning the plurality of wires parallel to each other in the end region by placing the plurality of wires in the plurality of wire guiding grooves so that a vicinity of the end region is located between the pair of wire guiding jigs;
• forming a fixing member between the pair of wire guiding jigs to contact outer circumference surfaces of the plurality of wires in the vicinity of the end region to fix relative positions between the plurality of wires;
• removing the pair of wire guiding jigs from the plurality of wires;
• and
• cutting the plurality of wires at a predetermined length position from the fixing member, stripping a coating at the end region of the plurality of wires on a cut side to expose the plurality of core wires, and connecting exposed ends of the plurality of core wires to the terminals,
• wherein the cutting, stripping, and connecting are performed before or after the forming of the fixing member.