Oscillation limited driven steering track assembly

An oscillation limited driven steering track assembly comprising:

• a track mechanism including a track frame, a sprocket and rollers rotatably secured to said track frame, and an endless track adapted to travel around said track frame and rollers and coupled to said sprocket;
• a motor coupled to and rotatably driving said sprocket about a motor axis of rotation and thereby driving said track around said track frame and rollers;
• wherein said motor is pivotally secured to a land vehicle about a steering axis whereby the motor and track mechanism are selectively rotated about the steering axis for steering the vehicle;
• a longitudinally extensible and retractable apparatus having first and second ends;
• wherein said apparatus is extensible to an extended position having a first longitudinal distance between said first and second ends and is retractable to a retracted position having a second longitudinal distance between said first and second ends, said first longitudinal distance being greater than said second longitudinal distance;
• said apparatus first end being pivotally secured to said track frame;
• a yoke located between said apparatus second end and the vehicle, wherein said yoke is pivotally secured to said apparatus second end about a first yoke axis and is pivotally secured to the vehicle about a second yoke axis, said first yoke axis being perpendicular to said second yoke axis;
• and,
• wherein said track mechanism can oscillate about said motor axis of rotation and said oscillation is limited to between a first radial position wherein said apparatus is in its extended position and a second radial position wherein said apparatus is in its retracted position, and further wherein said track mechanism is rotatable around said steering axis for steering the vehicle.