US 12,403,966 B2
Track assembly with resilient axle suspension supports
Glen Brazier, Karlstad, MN (US)
Filed by Glen Brazier, Karlstad, MN (US)
Filed on Jun. 24, 2022, as Appl. No. 17/803,408.
Prior Publication US 2023/0415830 A1, Dec. 28, 2023
Int. Cl. B62D 55/108 (2006.01); B62D 55/10 (2006.01); B62D 55/12 (2006.01); B62D 55/14 (2006.01); B62D 55/24 (2006.01); B62D 55/30 (2006.01)
CPC B62D 55/1086 (2013.01) [B62D 55/10 (2013.01); B62D 55/12 (2013.01); B62D 55/14 (2013.01); B62D 55/24 (2013.01); B62D 55/30 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A track assembly for a vehicle having a chassis, an engine and a plurality of axles, comprising:
a) a track having an interior surface from which a plurality of drive lugs project and an exterior surface from which a plurality of ground lugs project and including a surface region defining a footprint whereat the track ground lugs engage the terrain; and
b) a framework including a drive sprocket, a plurality of idler wheels supported from a plurality of axles and a plurality of housings, wherein each housing contains one of said axles and wherein said track is circumferentially trained around said framework such that the drive lugs engage said sprocket and said idler wheels contact the interior surface of said track;
c) wherein a plurality of said plurality of axles each include a flange plate projecting from a body of said axle and wherein said flange plate is mounted in one of said housings; and
d) a plurality of cushion members supported to said housings to contact said flange plates to resist motion of said axles to pivot or rise and fall in said housings, whereby said track idler wheels can independently rise and fall and conform to changing terrain contours.