Patent ID: 7997826

Claim:
A roller assembly adapted to follow ground contours during operation, including: a pair of roller components, each roller component having a respective inner end connected to the other respective inner end by a flexible and movable primary coupling and each roller component having a respective outer end connected to a support shaft which extends through a hollow interior of each roller component by a respective secondary coupling; the support shaft extending through a hollow interior of each roller component and with a clearance through the primary coupling; wherein each of the secondary couplings comprises: an inner support disc attached to, or integral with, the support shaft at each end thereof; an outer support disc attached to, or integral with, the outer end of each roller component; fasteners interconnect each of the respective inner support discs and outer support discs to a respective flexible intermediate coupling; and wherein each inner support disc is spaced from the adjacent outer support disc by a gap there between.