Patent ID: 6702174
Filing Date: 2004-03-09
Classification: B23K

Abstract:
A wire fixing jig for arranging a plurality of covered wires, each of which is provided with a conductive core coated with an insulating cover, to intersect with each other, and for fixing said covered wires when intersection portions thereof are welded by being pressurized with a welding device to form a predetermined circuit, said wire fixing jig comprising:a plate-shaped fixing jig body; a plurality of supporting portions, formed around said intersection portions of said covered wires to be welded, each supporting portion supporting a corresponding one of said covered wires at a predetermined position, said supporting portions being located at predetermined distances from a corresponding one of said intersection portions, on both sides of said corresponding one of said covered wires in a longitudinal direction thereof, and ensuring a space that allows said conductive cores of each of said intersection portions, which are pressurized when welded, to spread outwardly in a direction parallel to a plane in which said covered wires are disposed; and a plurality of through holes provided in said fixing jig body corresponding to said intersection portions of said covered wires placed on said fixing jig body and adapted so that said welding device is inserted into each of said through holes when said intersection portions are welded to each other; wherein each of said supporting portions comprise a pair of columnar elements projecting from said fixing jig body so that said pair of said columnar elements are opposed to each other at a pair of opposed portions provided thereof, and wherein said covered wires are supported by said opposed portions of said pair of columnar elements in a state in which said covered wires are placed on said fixing jig body, wherein each of said columnar elements has a substantially trapezoidal cross-section in a plane which is parallel to the plane in which said covered wires are disposed, and wherein a width of said columnar element gradually decreases toward an end thereof.