Patent ID: 8601963

Claim:
A seed metering assembly for a farm implement including a hopper sized to hold a volume of particulate material and having a discharge opening for passing of particulate material to a number of delivery runs, the assembly comprising: a drive shaft; and a plurality of metering units adjacent the discharge opening, each metering unit: independently controlled to be selectively engaged with the drive shaft so as to rotate with rotation of the drive shaft; and including a meter roller configured to meter particulate material from the discharge opening to one or more of the delivery runs; a plurality of idler rollers, each idler roller being associated with one of the plurality of metering units; a plurality of drive arrangements, each drive arrangement: associated with one of the plurality of respective metering units for selectively drivingly engaging the one of the plurality of metering units with the drive shaft; and including a drive member interconnecting the one of the plurality of meter rollers, one of the plurality of idler rollers and the drive shaft; a plurality of bell cranks, each bell crank coupled to one of the plurality of idler rollers and being configured to selectively move the one of the plurality of idler rollers between an engaged position wherein the drive arrangement associated with the one of the plurality of idler rollers drivingly engages a respective metering unit and a disengaged position wherein the drive arrangement associated with the one of the plurality of idler rollers is disengaged from the respective metering unit.