Patent ID: 8801115

Claim:
A track assembly for use with a vehicle having a spindle housing and an axle hub, the track assembly comprising: an attachment assembly configured to be connected to the spindle housing of the vehicle; a carriage that pivotally connects to the attachment assembly, the carriage including a main frame having a first end and a second end; a first idler wheel rotatably connected to the main frame adjacent the first end of the main frame, a second idler wheel rotatably connected to the main frame adjacent the second end of the main frame, the first and second idler wheels being positioned outboard of the main frame and being mounted on shafts that project outwardly from the main frame in an outboard direction; an outrigger beam positioned outboard of the main frame at a location between the first and second idler wheels, the outrigger beam being connected to the main frame by cantilever members that project in an outboard direction from an outboard side of the main frame; a first set of bogey wheels mounted on first cantilever pins that project in the outboard direction from the outboard side of the main frame, and a second set of bogey wheels mounted on second cantilever pins that project in an inboard direction from an inboard side of the outrigger beam; a sprocket configured to be connected to the axle hub such that the axle hub can rotate the sprocket about an axis of rotation of the axle hub; and a track driven about a generally triangular path by the sprocket, the generally triangular path having an upper rounded corner coinciding with the sprocket and first and second lower rounded corners coinciding with the first and second idler rollers.