CONNECTION STRUCTURE, TERMINAL CRIMPING MEMBER, WIRE HARNESS, CONNECTOR, METHOD FOR CRIMPING CONNECTION STRUCTURE, AND CRIMPING DEVICE FOR CRIMPING SAME

摘要

To provide a connection structure that can be crimped and connected in a desired crimping shape to the electric wire tip portion of an insulated wire without causing the deformation into an unintended crimping shape of the crimping portion of a crimp terminal. When crimping a conductor crimping portion (30a) of crimp terminal (10) to an electric wire tip portion (200a) of insulated wire (200), outer peripheral contact portions (613, 613) of a lower blade (61) of a crimping device (60A) and an outer peripheral contact portion (623) of an upper blade (62) are point-contacted to an outer periphery of a conductor crimping portion (30a) in a perpendicular cross section in a direction perpendicular to a longitudinal direction X and to a crimping direction Z so as to be left-right symmetrical with respect to a reference plane formed by the longitudinal direction (x) and the crimping direction (Z).

主权项

1. A method for crimping a connection structure, comprising the steps of:
inserting an electric wire tip portion of an insulated wire, the electric wire tip portion being formed by exposing a conductor by peeling off an insulating covering of a tip side, into a crimping portion of a hollow cross section that comprises an internal space that allows insertion of the electric wire tip portion in a crimp terminal; deforming the crimping portion by movement in a crimping direction of a pair of terminal pressurization members; and crimping and connecting the insulated wire and the crimp terminal; outer peripheral contact portions being provided to the terminal pressurization members, the outer peripheral contact portions contacting an outer periphery of the crimping portion in a perpendicular cross section perpendicular to a longitudinal direction and a crimping direction of the crimp terminal; first outer peripheral contact portions of essentially a first terminal pressurization member of the arranged pair of the terminal pressurization members being disposed at a spacing in a width direction of the crimping portion in the perpendicular cross section; the first outer peripheral contact portions being disposed so that contacting locations of the outer periphery of the crimping portion and the first outer peripheral contact portions are symmetrical with respect to a reference plane formed by the longitudinal direction and the crimping direction when the arranged pair of the terminal pressurization members is moved in the crimping direction to deform the crimping portion; second outer peripheral contact portions being provided to a second terminal pressurization member of the arranged pair of the terminal pressurization members, the second outer peripheral contact portions point-contacting the outer periphery of the crimping portion in the perpendicular cross section; the second outer peripheral contact portions being disposed at a spacing in the width direction of the crimping portion in the perpendicular cross section; the second outer peripheral contact portions being disposed so that contacting locations of the outer periphery of the crimping portion and the second outer peripheral contact portions are symmetrical with respect to the reference plane when; and the crimping portion is deformed; and the second outer peripheral contact portions of the second terminal pressurization member being disposed inward of the first outer peripheral contact portions of the first terminal pressurization member.