Multi-conductor cable for vehicle and method for manufacturing multi-conductor cable for vehicle
AssigneeSumitomo Electric Industries, Ltd.
InventorsShigeyuki TANAKA, Yutaka MATSUMURA, Taro FUJITA, Takaya KOHORI
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Abstract
A multi-conductor cable for a vehicle includes core wires respectively having a conductor formed by a plurality of twisted wires, and an insulating layer covering an outer periphery of the conductor, and a sheath layer disposed around the core wires. A marking portion is partially formed on an outer peripheral surface of the sheath layer, and a ratio of an arithmetic average roughness Ra2 of a peripheral region adjacent to the marking portion, with respect to an arithmetic average roughness Ra1 of the marking portion, at the outer peripheral surface, is 0.10 or greater and 0.90 or less.
Claims15
A multi-conductor cable for a vehicle, comprising:
- core wires respectively having a conductor formed by a plurality of twisted wires, and an insulating layer covering an outer periphery of the conductor;
- and
- a sheath layer disposed around the core wires,
- wherein a marking portion is partially formed on an outer peripheral surface of the sheath layer, and
- wherein a ratio of an arithmetic average roughness Ra2 of a peripheral region adjacent to the marking portion, with respect to an arithmetic average roughness Ra1 of the marking portion, at the outer peripheral surface, is 0.10 or greater and 0.90 or less.
A method for manufacturing a multi-conductor cable for a vehicle, including core wires respectively having a conductor formed by a plurality of twisted wires, and an insulating layer covering an outer periphery of the conductor, and a sheath layer disposed around the core wires, the method comprising:
- forming a marking portion by partially smoothing or roughening an outer peripheral surface of the sheath layer;
- and
- controlling a ratio of an arithmetic average roughness Ra2 of a peripheral region adjacent to the marking portion, with respect to an arithmetic average roughness Ra1 of the marking portion, to 0.10 or greater and 0.90 or less.
Dependencies are inferred from the claim text.