Patent ID: 8196671

Claim:
An agricultural machine, comprising: a disk blade assembly including a hub and a disk blade mounted to said hub, said hub having a perimeter and an axis of rotation; and a scraper assembly including: a mount; a scraper blade including a scraper portion adjacent said disk blade; and a hinge pivotally interconnecting said scraper blade with said mount, said hinge having an axis of rotation which intersects with said disk blade at a point which is at or immediately below a bottom of said perimeter of said disk blade hub, in an area beginning flexure of said disk blade as a result of ground forces applied to said disk blade, said hinge axis of rotation intersecting with a substantially vertical line passing through said hub axis of rotation and contacting at least a part of said disk blade substantially at said point, said point being located radially inwardly of said scraper portion of said scraper blade relative to said disk blade.