ADJUSTABLE DEPTH CONTROL SYSTEM FOR ROW UNIT PLANTERS

摘要

A row planter having a pair of gauge wheels mounted on gauge wheel arms includes a controller for adjusting the position of the gauge wheels, and thereby adjusting the planting depth of seeds. The controller is pivotally mounted on the row unit, with a handle on the upper end and a rocker arm on the lower end engaging the gauge wheel arms. The controller can be pivoted about a transverse horizontal axis by movement of the handle so as to adjust the rocker arms, and thereby the gauge wheels arms for adjusting the seed planting depth. The controller further includes a pivotal block to which the rocker arm is mounted. The pivotal block can be adjusted via bolts on opposite forward and rearward sides of the block, so as to fine-tune the rocker arm position, and thereby further adjust the planting depth of the row unit.