Automatic guidance mechanism

摘要

An improvement in furrow followers of a type adapted for connection to an automatic steering mechanism for causing a vehicle to selectively follow a furrow is disclosed. The improvement provides a first and a second probe unit which are adapted to lie in a field furrow. The first probe unit is pivotally connected to a horizontal displacement arm. The second probe unit is pivotally connected to the first probe unit and is disposed in spaced trail position behind the first probe unit. A spacing bend is also provided in the second probe unit.