SUSPENSION OF A MONO-COQUE BODY TYPE VEHICLE COMPRISING A TORSION BAR CONTROLLING VERTICAL EXTERNAL FORCE AND A FORK ARM CONTROLLING LONGITUDINAL AND HORIZONTAL EXTERNAL FORCE

摘要

PURPOSE: A suspension of a mono-coque body type vehicle is provided to secure excellent durability and strength against load applied vertically without changing a structure or design of a mono-coque body and to reduce moment. CONSTITUTION: In a suspension of a mono-coque body type vehicle, a sub frame comprises side members(3) combined to both ends of cross members forming a width direction of the vehicle to form a longitudinal direction of the vehicle. One end of a lower arm assembly(10) for holding fixing force is fixed to a knuckle combined to a vehicle wheel and the other end is joined to the side members of the sub frame and the lower arm assembly is combined by a fixing member(20) joined to fixing units(3a) projected at the side members. A torsion bar assembly(30) is combined to one side of the lower arm assembly and arranged in the longitudinal direction of the vehicle body along the sub frame. One end of an upper arm assembly(40) is fixed to the knuckle joined with the vehicle wheel and the other end is joined to the sub frame. One end of a shock absorber assembly(50) is fixed to the lower arm assembly and the other end is joined to the vehicle body. One end of a fork arm assembly(60) is fastened to the shock absorber assembly and the other end is combined to the sub frame.