HIGH STRESS STABILIZER FOR VEHICLE

摘要

To provide a vehicle stabilizer for high stress in which fatigue life of a bending portion can be prolonged and which can exhibit excellent durability. A configuration of a bending portion 16, to which a maximum stress is applied and which is the most fragile part, of a vehicle stabilizer for high stress 10 is formed in a state which satisfies conditions: 0<Ɖ¦4 and (Æ×d/R)‰¦2, wherein d represents a material diameter before bending process, R represents a radius of bending of the bending portion 16, d1 represents a short radius of a cross section of the bending portion 16, d2 represents a long radius of a cross section of the bending portion 16, and a flat rate Æ of a cross section of the bending portion 16 is represented by the following equation: Æ=(d2-d1)/d2×100. Accordingly, concentration of shearing stress on the bending portion 16 during a load input can be suppressed to prevent the vehicle stabilizer for high stress 10 from being broken due to the concentration of stress on the bending portion 16.