Patent attributes
A trailing arm assembly includes a frame bracket, a first frame, a parallel linkage, an adjustable biasing member, and a second frame. The frame bracket can include a first connection portion and a second connection portion. The parallel linkage pivotably connects the frame bracket and the first frame via a first pivot and a second pivot on the second connection portion of the frame bracket and a third pivot and a fourth pivot on the first frame. The adjustable biasing member pivotably connects to the frame bracket at a first end and pivotably connected to the parallel linkage at a second end, wherein the adjustable biasing member is configured to provide a downward force on the first frame. The second frame is connected to the first frame via a second parallel linkage.
