Patent ID: 6026741
Filing Date: 2000-02-22
Classification: A01F

Abstract:
In a density control system for an agricultural baler, which comprisesa baling chamber comprising a plurality of walls, including at least one movable wall section, andmeans for introducing charges of crop material into said baling chamber and a plunger for compressing said charges to a package of said crop material therein,said density control system comprisingcharge sensing means for sensing the introduction of a new charge of crop material into said baling chamber and generating an output indicative of said introduction,load sensing means for sensing the force applied on said charge during compression thereof and generating an output indicative of said force, andactuator means for adjusting the position of said movable wall section in response to the output of said load sensing means and the output of said charge sensing means in order to vary the density of said package of crop material, the improvement comprisingsaid charge sensing means comprisingmeans operable to sense the passage of a newly introduced charge of crop material along at least one wall portion of said baling chamber,a pivotable member protruding through said at least one wall portion into the path of said charges of crop material, anda sensor sensing the movement of said pivotable member.