Patent ID: 6945342
Filing Date: 2005-09-20
Classification: B62D

Abstract:
1. A track drive undercarriage device attached to a chassis of a heavy construction vehicle and operationally connected to a transmission and drive shaft of the construction vehicle, said device comprising: a pair of support braces attached to the construction vehicle; a base plate attached to said support braces; four shock absorbers attached to said base plate; four axles attached to said four shock absorbers, each axle having a distal end and a proximate end, the proximate end of each axle is attached to one of said four shock absorbers; a pair of torque bars attached to said four axles, each torque bar having two opposite ends, each opposite end of each torque bar is attached to the distal end of one of said four axles; and four spindles attached to said four axles, each spindle is attached to the distal end of one of said four axles; wherein each shock absorber comprising: