Patent ID: 6866466

Claim:
A lift arm assembly for a self-propelled prime mover having a main frame which extends longitudinally and has forward and rear ends, and a power source on the main frame, the lift arm assembly comprising: a first support link and a second lift arm link pivotally connected together at a first pivot, said first support link having an end opposite from the first pivot pivotally mounted on the main frame at a second pivot adjacent rear portions of the frame and adjacent a lower side of the main frame, said first support link extending upwardly along the rear end of the main frame, and said second lift arm link extending forwardly from the first pivot to a location adjacent the forward end of the main frame; a control link having a first end pivotally connected to the frame adjacent the forward end of the frame, and having a second end pivotally connected to the second lift arm link at a location spaced in a forward direction from the first pivot; and an extendable and retractable actuator having a first end pivotally mounted to the first support link adjacent the second pivot, and having a second end pivotally mounted to the second lift arm link at a location spaced forwardly from the first pivot.