Patent ID: 6135221
Filing Date: 2000-10-24
Classification: B62D

Abstract:
A drive assembly for a track-laying vehicle adapted to travel in a horizontal direction along the ground, the assembly comprising:a horizontally elongated frame having two opposite ends and upper and lower edges extending parallel to the direction between the ends;a drive wheel at one of the ends;a support fixed on the frame between the ends;a guide on the frame extending between the fixed support and the other end along a line forming an acute angle with the direction and extending downward toward the other end;a movable support displaceable parallel to the line in the guide;an idler wheel mounted on the movable support at the other end;a spring braced between the supports and urging the idler wheel parallel to the line away from the drive wheel;a plurality of ground wheels along the lower edge between the drive and idler wheels;an endless track looped around the wheels and extending parallel to the direction along the idler wheels; anddrive means connected to the drive wheel for rotating the drive wheel and displacing the track around the wheels.