Method of forming flat multicore wire

Metal working – Method of mechanical manufacture – Electrical device making

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Details

295644, 81 951, 156 55, H01R 4302

Patent

active

051797798

ABSTRACT:
The present invention improves the quality and productivity in a coating peeling-off process in which the coating at an intermediate portion along the length of a wire is peeled off in order to expose a conductor inside the coated wire, while enabling coatings at intermediate portions along the length of multicore wires or small-diameter wires to be peeled off.
In a primary process, a heating jig 16 is brought into press contact with the upper half portion of the coating of the peeling-off designated portion at an intermediate portion along the length of coated wires 1 so as to press down the coating downwardly relative to the transverse direction of the wires, whereby a coating peeled-off portion 20 in which a part of conductors 2 is exposed is formed. Afterwards, in a secondary process, the coating of the coating peeled-off portion 20 is cut and press held at the ends thereof by cutting and peeling-off blades 13 adapted to operate from the ends of the coating peeled-off portion 2 toward the center thereof so as to remove the coating of the coating peeled-off portion 20, whereby a coating peeled-off portion 131 is formed.

REFERENCES:
patent: 3385140 (1968-05-01), Carpenter et al.
patent: 3396897 (1967-10-01), Nelson
patent: 3895426 (1975-07-01), Papsdorf
patent: 4455745 (1984-06-01), Tueppen
patent: 4597176 (1986-07-01), Shields et al.
patent: 4765044 (1988-08-01), Wilson et al.
patent: 4779328 (1988-10-01), Hasegawa et al.
patent: 4931598 (1990-06-01), Calhoun et al.

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