Patent ID: 8469164
Filing Date: 2013-06-25
Classification: B60G,F16F

Abstract:
1. A damper comprising: an actuator connected to a sprung member side of a vehicle, said actuator having a motion converting mechanism for converting a linear motion into a rotational motion and a motor to which the rotational motion resulting from the conversion by said motion converting mechanism is transmitted; a hydraulic damper, said hydraulic damper having a cylinder, a piston inserted slidably into said cylinder and defining two pressure chambers within said cylinder, and a rod connected at one end thereof to said piston, the linear motion of said actuator being transmitted to one of said rod and said cylinder, the other of the rod and the cylinder being connected to an unsprung member side of the vehicle; a spring accommodated within one of said pressure chambers and biasing said hydraulic damper in a damper compressing direction; a spring accommodated within the other pressure chamber and biasing said hydraulic damper in a damper extending direction; a first spring bearing member arranged in one of said pressure chambers, said first spring bearing member being connected to one portion of said rod such that said first spring bearing member is rotatable relative to said rod; and a second spring bearing member arranged in another one of said pressure chambers, said second spring bearing member being connected to another portion of said rod such that said second spring bearing member is rotatable relative to said rod.