Patent ID: 6490789
Filing Date: 2002-12-10
Classification: H01R,Y10T

Abstract:
A method of producing a connecting structure for covered wires, the method comprising the steps of:preparing a first covered wire having a first conductor covered with a first resinous cover and a second covered wire having a second conductor covered with a second resinous cover; overlaying the second covered wire on the first covered wire cross each other; interposing respective overlapping portions of the first and second covered wires between an upper resin tip and a lower resin tip; and oscillating the upper and lower resin tips with ultrasonic waves while compressing the upper and lower resin tips from the outside, whereby the first and second resinous covers of the first and second covered wires are molten for removal thereby to bring the first conductor of the first covered wire into electrical contact with the second conductor of the second covered and simultaneously, the upper and lower resin tips are mutually welded to each other thereby to seal up the surroundings of a contact between the first conductor and the second conductor; wherein each of the upper and lower resin tips is provided, on its butt face being abutted against the other resin, with a wire receiving groove which has a semi-circular cross section of a diameter corresponding to the diameter of the first covered wire.