Patent ID: 7621539
Filing Date: 2009-11-24
Classification: B60G,Y10T

Abstract:
1. An actuator for active geometry control suspension of a vehicle, comprising: a piston reciprocating rectilinearly, a screw bar engaged with the rear portion of the piston and rotating in place, and a drive motor rotating the screw bar in place, the actuator comprising an impact buffering means for buffering a load in the axial direction and an impact absorbing means for absorbing a load in the vertical direction to the axis, the impact buffering means and impact absorbing means being provided on a boundary portion between the screw bar and the motor, wherein the impact buffering means comprises: a disc thrust arranged on the circumferential surface of the rear portion of the screw bar, which is corresponding to a joining point with the motor; a pair of thrust bearings arranged closely to both surfaces of the disc thrust; and a pair of plate thrust bearings each of which is provided closely to the outer surface of each of thrust bearings.