Patent attributes
An overall knuckle is formed by a second carbon-fiber composite material, and a first carbon-fiber composite material is embedded in particular portions, whose rigidities are insufficient only with the second carbon-fiber composite material. The one particular portion is provided to a neck part, and the first carbon-fiber composite material is embedded in this particular portion such that continuous fibers thereof are orientated in a direction orthogonal to a central axis of a torsional load so as to enhance a torsional rigidity. The other particular portions are provided to the body part, and the first carbon-fiber composite material is embedded in these particular portions such that the continuous fibers thereof are orientated in a vertical direction so as to enhance a bending rigidity.
