SUSPENSION ARM OF REAR SUSPENSION FOR VEHICLE, WHICH IS CAPABLE OF INCREASING LINEAR STABILITY AND RESTRICTING CHANGE OF CAMBER ANGLE IN BUMPING OR REBOUNDING, AND IMPROVING THE DURABILITY BY REDUCING NOISE AND INCREASING THE SIZE OF THE UPPER ARM BUSH AND THE LOWER ARM BUSH

摘要

PURPOSE: A suspension arm of a rear suspension for a vehicle is provided to improve the appearance by crossing the upper arm with the lower arm, to prevent wear of the tire by increasing linear stability and restricting change of camber angle in bumping or rebounding, and to improve the durability by reducing noise and increasing the size of the upper arm bush and the lower arm bush. CONSTITUTION: A suspension arm of a rear suspension is composed of an upper arm(81) and a lower arm crossed between a rear cross member(1) and a knuckle(N). The upper arm and the lower arm are combined with the rear cross member through an upper arm bush(81a) and a lower arm bush(82a) and with the knuckle through a ball joint. The upper arm is formed of a rectangular beam, and the lower arm is formed of a round pipe. An elliptical internal hole(81c) is formed longitudinally in the upper arm or the lower arm, and the upper arm and the lower arm are crossed by penetrating the other arm to the internal hole.