Patent ID: 7958707
Filing Date: 2011-06-14
Classification: A01D,Y10T

Abstract:
1. A mower for mowing agricultural crops while moving in a forward direction of travel and cutting a swath a width between a mower left side and a mower right side comprising: a longitudinal plane parallel to the forward direction, oriented vertically and disposed equidistant from the mower left side and the mower right side; a sub-frame generally perpendicular to the longitudinal plane having a sub-frame left side, a sub-frame right side, a sub-frame upper side and a sub-frame lower side; a main frame with a portion that is perpendicular to the longitudinal plane; a four bar linkage comprising: a first link extending between a first point at a connection to the sub-frame with a first spherical bearing and a second point at a connection to the main frame with a second spherical bearing with a first link axis extending between the first and second points along a line at a first angle relative to the longitudinal plane; a second link extending between a third point at a connection to the sub-frame with a third spherical bearing and a fourth point at a connection to the main frame with a fourth spherical bearing with a second link axis extending between the third and fourth points along a line at a second angle relative to the longitudinal plane; and wherein the first angle is not equal to the second angle.