COMPOSITE STRANDED WIRE CONDUCTOR AND FLEX RESISTANCE ELECTRIC WIRE

• Main Author: SAEKI KOYO
• Format: Patent
• Language: English; Japanese
• Published: 04.06.2020
• Subjects: BASIC ELECTRIC ELEMENTS; CABLES; CABLES OTHER THAN ELECTRIC; CONDUCTORS; ELECTRICITY; INSULATORS; ROPES; ROPES OR CABLES IN GENERAL; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES; TEXTILES

To provide a composite stranded wire conductor and a flex resistance electric wire, which are capable of improving a morphological stability while securing flex resistance.SOLUTION: A composite stranded wire conductor 10 is provided with a central set stranded wire 11a, a first layer composite stranded wire 11b provided to overlap the periphery of the central set stranded wire 11a, and a second layer composite stranded wire 11c provided to overlap the periphery of the first layer composite stranded wire 11b. The central set stranded wire 11a is lower twisted in a first direction, the first layer composite stranded wire 11b is lower twisted and main twisted in a second direction opposite to the first direction, and the second layer composite stranded wire 11c is lower twisted and main twisted in a first direction. The central set stranded wire 11a, the first layer composite stranded wire 11b, and the second layer composite stranded wire 11c have substantially the same lower twist pitch, and the pitch magnification at which the main twist pitch of the second layer composite stranded wire 11c is interrupted by the main twist pitch of the first layer composite stranded wire 11b is set to 1.00 or more and 2.44 or less.SELECTED DRAWING: Figure 1 【課題】耐屈曲性を確保しつつ形状安定性を向上させることが可能な複合撚線導体及び耐屈曲電線を提供する。【解決手段】複合撚線導体１０は、中心集合撚線１１ａと、中心集合撚線１１ａの周囲に重なって設けられる第１層複合撚線１１ｂと、第１層複合撚線１１ｂの周囲に重なって設けられる第２層複合撚線１１ｃとを備えている。中心集合撚線１１ａは、第１方向に下撚りされており、第１層複合撚線１１ｂは、第１方向と反対となる第２方向に下撚り及び本撚りされており、第２層複合撚線１１ｃは、第１方向に下撚り及び本撚りされている。中心集合撚線１１ａ、第１層複合撚線１１ｂ、及び第２層複合撚線１１ｃは、下撚りピッチが略同じとされ、第２層複合撚線１１ｃの本撚りピッチを第１層複合撚線１１ｂの本撚りピッチで割り込んだピッチ倍率が１．００以上２．４４以下とされている。【選択図】図１