Patent ID: 9623780
Date: 2017-04-18
CPC Classifications: B60G,B60P,B62D

Claim:
1. A suspension assembly for attachment to a trailer having a frame, a side rail, an axle and a wheel, the suspension assembly comprising: an axle pivoting plate pivotally mounted to the frame at a first pivot point and rotationally fixed to the axle; a connection arm having a first end onto which the wheel is rotatably mounted and a second end for receiving and rotationally fixing the axle to said connection arm; an actuator being movable between an extended and a retracted position, said actuator being pivotally connected to the frame at a second pivot point, and said actuator being pivotally connected to said axle pivoting plate at a third pivot point; wherein said first pivot point, said second pivot point, and said third pivot point are all located below the lower surface of the side rail; wherein when said actuator is extended, said axle pivoting plate pivots about said first pivot point causing the axle and connection arm to swing rearwardly and rotate, causing the wheel to move substantially vertically with respect to the frame to displace the trailer from a raised position to a lowered position.