Tape-sheathing device for an electric wire

A tape-sheathing device for an electric wire, in which a sheath tape is adhered to an electric wire by wrapping the electric wire in a width direction of the tape so that a longitudinal tape direction is aligned along an axial direction of the electric wire, said tape-sheathing device comprising:

• a plurality of dies, each die having a tapered hole in the downstream side in a feeding direction, provided in series in the feeding direction, wherein the electric wire and the tape are jointly fed together by a feeding device through said plurality of dies;
• said tapered hole of each die, other than the final die in the feeding direction, is provided with an opening formed by notching an outer peripheral portion thereof, and each die having said opening is arranged in a position with said opening shifted out of alignment relative to the respective opening of an upstream die;
• whereby the tape is adhered while being wrapped around a portion of the electric wire whenever the electric wire and the tape pass through the respective dies;
• and
• wherein said plurality of dies comprises three dies including a first die, a second die, and a third die, said first die and said second die having said openings in the tapered holes formed by notching a portion of about 90° centering on said tapered hole in cross-section orthogonal to the axial direction at the outer peripheral portion of the downstream side in a feeding direction, and said first die and said second die are arranged so that the respective openings are shifted relative to each other by about 90°.