25-04-2019 дата публикации
Номер: US20190122787A1
Принадлежит:
An object of the present invention is to provide a lead wire having a conductor that is hardly pulled out from the lead wire during the peeling process or the like while being formed of carbon fibers. In the present invention, a belt-shaped conductor formed of a plurality of carbon fibers are included in a lead wire having a circular cross section. 1. A lead wire having a circular cross section , comprising:a belt-shaped conductor formed of a plurality of carbon fibers; anda covering material in a tubular shape covering the belt-shaped conductor.2. The lead wire according to claim 1 , wherein a filling rate (%) expressed by Formula (1) below is 60% or more and 95% or less:{'br': None, 'i': S', '/S, 'sub': 2', '1, 'Filling rate(%)=()×100% \u2003\u2003(1)'}where:{'sub': '1', 'sup': '2', 'S(mm) represents an area of a cross section of a hollow interior obtained by cutting the covering material along a plane orthogonal to a lengthwise direction thereof; and'}{'sub': '2', 'sup': '2', 'S(mm) represents an area in which the plurality of carbon fibers are present in the hollow interior.'}3. The lead wire according to claim 1 , whereinthe belt-shaped conductor is twisted, and a pitch of the twist is more than 5 mm and less than 50 mm.4. The lead wire according to claim 2 , whereinthe belt-shaped conductor is twisted, and a pitch of the twist is more than 5 mm and less than 50 mm. This application claims priority to Japanese Patent Application No. 2017-065172, the disclosure of which is incorporated herein by reference in its entirety.The present invention relates to a lead wire, and more particularly, to a lead wire with a circular cross section that includes a conductor and a tubular covering material covering the conductor.Conventionally, electric wires are widely used for transferring electric energy. Among these wires, a small-sized wire called a lead wire is frequently used in electric and electronic equipment and the like for transferring weak electric power or ...
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