Totoku Electric Co., Ltd

Satoshi Yamazaki

Takeyasu Nakayama

Hiroto Imamura

To provide a coaxial cable with a favorable appearance and excellent processability. The above-described problem is solved by a coaxial cable comprising a center conductor (), an insulator () provided on an outer periphery of the center conductor (), an external conductor () provided on an outer periphery of the insulator (), and an outer coated body () covering the external conductor (). The external conductor () is constituted by a lateral winding shield () provided with metal fine wires laterally wound on the outer periphery of the insulator (), and a metal resin tape () wound in a layer on the lateral winding shield () with a metal layer side being on an inside. The outer coated body () is constituted by a resin tape () wound on the metal resin tape (), and an extruded sheath () covering the resin tape (). Given T1 as a thickness of the metal resin tape () and T2 as a thickness of the resin tape (), T2/T1 is within a range from 0.180 to 0.800.

Coaxial cable

A coaxial cableincludes a hollow-core-bodyhaving an integral structure of thermoplastic resin including an inner annular portionthat insulation-coats an inner conductor, a plurality of rib portionsthat radially extend from the inner annular portion, and an outer annular portionthat is connected to outer ends of the rib portions; three or more gap portionssurrounded by the inner annular portion, the rib portions, and the outer annular portion; and outer side reinforcing portionsbeing formed on both sides of an outer end in the rib portion, in which a size ratio of a minimum value Wof a rib width in the rib portionand a maximum value Wof the rib width in the rib portionis within a range of 1:1.6 to 1:3.0.

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Ueda, Japan

Satoshi Yamazaki