Terminal-attached electric wire manufacturing method and apparatus
AssigneeYazaki Corporation
InventorKei SATO
Life of this patent
Estimating the term…
Abstract
Included are: an electric wire placing step for inserting a core-wire exposing portion of a terminal end of an electric wire between inner wall surfaces of a pair of piece portions of a terminal fitting that has a core wire connector composed of a bottom portion and the piece portions projected from two opposite ends of the bottom portion; and an electric wire holding-down step for holding down, by use of a holding-down jig made of a laser-transmissive material having a higher melting point than the core-wire exposing portion and the core wire connector have, the core-wire exposing portion from one sides of free ends of the piece portions and pressing the core-wire exposing portion against an inner wall surface of the bottom portion by use of the holding-down jig.
Claims6
A terminal-attached electric wire manufacturing method comprising:
- an electric wire placing step for inserting a core-wire exposing portion at a terminal end of an electric wire between inner wall surfaces of a pair of piece portions of a terminal fitting that has a core wire connector composed of a bottom portion and the piece portions, the piece portions being projected from two opposite ends of the bottom portion;
- an electric wire holding-down step for holding down, by use of a holding-down jig, the core-wire exposing portion from sides of free ends of the piece portions and pressing the core-wire exposing portion against an inner wall surface of the bottom portion by use of the holding-down jig, the holding-down jig being made of a laser-transmissive material that has a higher melting point than the core core-wire exposing portion that is composed of a plurality of element wires and the core wire connector have;
- a melting step for irradiating the core-wire exposing portion with a laser beam through the holding-down jig from the sides of the free ends of the piece portions until the core-wire exposing portion is melted;
- and
- a fixing step for bonding, with stopping irradiation with the laser beam and removing the holding-down jig, the core-wire exposing portion to the core wire connector while solidifying the core-wire exposing portion melted by the laser beam.
A terminal-attached electric wire manufacturing apparatus comprising:
- a terminal mount configured to have a terminal fitting mounted thereon, the terminal fitting having a core wire connector composed of a bottom portion and a pair of piece portions projected from two opposite ends of the bottom portion;
- a holding-down jig made of a laser-transmissive material having a higher melting point than the core wire connector and a core-wire exposing portion at a terminal end of an electric wire inserted between inner wall surfaces of the pair of piece portions have, the holding-down jig being configured to hold down the core-wire exposing portion from sides of free ends of the piece portions and press the core-wire exposing portion against an inner wall surface of the bottom portion;
- and
- a laser device configured to irradiate the core-wire exposing portion with a laser beam through the holding-down jig from the sides of the free ends of the piece portions until the core-wire exposing portion is melted, and stop irradiation with the laser beam before the holding-down jig is removed after the core-wire exposing portion is melted by the laser beam.
Dependencies are inferred from the claim text.