Patent ID: 7956289
Filing Date: 2011-06-07
Classification: F16C,Y10T

Abstract:
1. A control cable, comprising: an outer casing having an armor layer formed by thickly winding a metal wire in spiral, and a coating made of synthetic resin covering a surface of the armor layer; an inner cable slidably inserted into the outer casing, and a liner composed of a tube made of a synthetic resin provided on an inside surface of the armor layer, wherein the armor layer has a two thread coil configuration, the armor layer having a trapezoidal wire of trapezoidal cross section where a width of an inside surface is narrow, and an intervening wire intervened between the trapezoidal wire, wherein the intervening wire has about a round shape of which a portion contacting a slanted surface of the trapezoidal wire is a circular arc, wherein a ratio of a thickness of the intervening wire to a thickness of the trapezoidal wire is 0.65 to 1, a ratio of a winding pitch of the spiral to an outer diameter of the armor layer is 0.55 to 0.7, and a ratio of a width in an axis direction of the intervening wire to a width of a bottom of the trapezoidal wire is 0.5 to 1.5, wherein a difference between an outer diameter of the inner cable and an inner diameter of the liner is 0.3 to 0.7 mm.