Yazaki Corporation

Hiroya Kousaka

Kei Sato

Tomoya Sato

A manufacturing method of an electric wire with terminal includes a crimping step of crimping first and second fastening portions of a terminal to a conductor core wire and an insulating coating, while moving a crimping jig in a predetermined movement direction. The crimping jig includes first and second crimpers configured to crimp the first and second fastening portions, such that a width of the first fastening portion after crimping is larger than a width of the second fastening portion after crimping. The second crimper includes a fastening surface configured to fasten the second fastening portion at the time of crimping, a side surface facing the first crimper, and an inclined surface expanding in a width direction as approaching the first crimper so as to chamfer a boundary portion between the fastening surface and the side surface. The inclined surface faces an intermediate portion in the crimping step.

Manufacturing method of electric wire with terminal, manufacturing device of electric wire with terminal, and electric wire with terminal

An electric wire with terminal includes an electric wire including a core wire and a cover covering the core wire, and a terminal to be attached to the electric wire. The terminal includes a placement portion onto which the electric wire is placed, a pair of core wire crimp pieces extending from the placement portion and configured to be crimped to the core wire, and a pair of cover crimp pieces extending from the placement portion and configured to be crimped to the cover. In a state where the pair of cover crimp pieces is crimped to the cover, the pair of cover crimp pieces includes a recessed portion positioned at an intermediate position in an electric wire extending direction in which the electric wire extends, and a pair of inclined portions continuous with both ends of the recessed portion and inclined radially outward.

Growing community of inventors

Makinohara, Japan

Hiroya Kousaka