Patent ID: 8635962

Claim:
An apparatus for adjusting the penetration depth of a soil tillage device mounted to a frame, the apparatus comprising: an indexer selectively engaged with a cooperating member of the frame and rotatable about an axis of rotation, the indexer including a set of teeth in a radial spaced arrangement about the axis of rotation that is configured to mesh with a complementary set of teeth of the frame; a cam coupled to and rotatable with the indexer, a portion of the cam having a peripheral edge perpendicular to the axis of rotation, the peripheral edge of the cam including a plurality of scallops formed therein which correspond to respective desired depth settings for the soil tillage device; a gauge wheel operative to set a desired cutting depth for the tillage device; a gauge arm coupled to the gauge wheel and pivotably coupled to the frame, the gauge arm including a stop projecting therefrom which is engageable with a selected one of the plurality of scallops for setting a desired penetration depth for the soil tillage device; and wherein engagement of the set of teeth of the indexer with the complementary set of teeth of the frame prevents of the indexer and the cam with respect to the frame.