Patent ID: 6109363
Filing Date: 2000-08-29
Classification: E02F

Abstract:
A blade assembly, comprising:a blade;a subframe having a connecting portion with a pair of legs extending from a defined midpoint and a lever portion having a first end connected at the midpoint of the connecting portion to define a primary vertical axis and a second end, the blade being connected with the first end of the lever portion for pivotal movement therewith; andan actuating cylinder having a housing portion pivotally connected to the second end of the lever portion of the subframe to define a secondary vertical axis and a rod portion extending through the housing portion to define first and second rod ends, the first rod end of the actuating cylinder being connected to one of the pair of legs and the second rod end of the actuating cylinder located adjacent the other of the one of the pair of legs, the housing portion being movable along the rod portion between the pair of legs to produce angular motion of the blade relative to the connecting portion of the subframe through movement of the secondary vertical axis about the primary vertical axis.