Patent ID: 9211921
Filing Date: 2015-12-15
Classification: B62D,B62K,B62M

Abstract:
1. A track assembly for traction of an off-road vehicle, the track assembly comprising: a plurality of track-contacting wheels comprising: an axis of rotation of the drive wheel being spaced apart from axes of rotation of the idler wheels; an endless track disposed around the track-contacting wheels and comprising an inner side facing the track-contacting wheels and a ground-engaging outer side for engaging the ground, the drive wheel being rotatable to impart motion of the endless track, the idler wheels contacting a bottom run of the endless track; and a frame supporting the idler wheels, the frame comprising a nonmetallic hollow frame structure supporting respective ones of the idler wheels, the nonmetallic hollow frame structure comprising a wall that includes a top surface, a bottom surface, and lateral surfaces of the nonmetallic hollow frame structure and defines a hollow interior of the nonmetallic hollow frame structure when the track assembly is mounted to the off-road vehicle.