Patent ID: 6926093

Claim:
In combination with a mounting arm of a soil leveling attachment: a rearwardly extending carrier arm having proximal and distal end portions, said distal end portion being provided with a leveling device for engagement with the ground, a pivot mounting said proximal end portion of said carrier arm to said mounting arm for upward and downward pivotal movement of said carrier arm, a selectively operable connecting link on said mounting arm having a pivoting end portion pivotably mounted to said mounting arm and a connecting end portion, said connecting link having a fixed setting and a released, floating setting in which the connecting link is movable, a spring member acting between said connecting end portion of said connecting link and said carrier arm to bias said carrier arm toward a lower position when said connecting link is at its fixed setting, whereby said spring member applies a downward force on said leveling device, a removable pin for securing said connecting link against pivoting movement relative to said mounting arm, said removable pin also removable for releasing said connecting link from said fixed setting to permit said connecting link to float in response to upward movement of said carrier arm.