Aligned structure of cables and production method of aligned structure of cables

An aligned structure of cables, comprising:

• a plurality of cables, each of the plurality of cables including:
• a first portion having a conductive cable core and an insulator covering an outer periphery of the cable core;
• and
• a second portion distal to the first portion in which the insulator covering is removed to expose the cable core;
• a first cable core aligning insulator having a distal side and a proximal side, the first cable core aligning insulator including a plurality of first grooves extending from the proximal side of the first cable core aligning insulator to the distal side of the first cable core aligning insulator, the second portion of each of the plurality of cables are fitted into a respective one of the plurality of first grooves to align each of the second portions;
• a cable core fixing insulator having a distal side and a proximal side, the cable core fixing insulator fixes the second portions aligned by the first cable core aligning insulator, and
• a second cable core aligning insulator having a distal side and a proximal side, the second cable core aligning insulator being arranged on the distal side of the cable core fixing insulator, the second cable core aligning insulator includes a plurality of second grooves extending from the proximal side of the second cable core aligning insulator to the distal side of the second cable core aligning insulator, the second portion of each of the plurality of cables are fitted into a respective one of the plurality of second grooves to align each of the second portions,
• wherein a pitch of the second portions at the distal side of the cable core fixing insulator is shorter than a pitch of the plurality of cables proximal to the proximal side of the first cable core aligning insulator;
• and
• cross sections of the cable cores are exposed on a surface on the distal side of the second cable core aligning insulator, and a pitch of the cross sections is substantially the same as the pitch of the second portions at the distal side of the cable core fixing insulator.