Patent ID: 6823953
Filing Date: 2004-11-30
Classification: B62D

Abstract:
In a crawler vehicle having a longitudinal axis; a frame extending along said longitudinal axis; two track carriages on opposite sides of said frame; first connecting device interposed between each said carriage and said frame to permit oscillation of each said carriage, with respect to said frame, about at least a first hinge axis perpendicular to said longitudinal axis; a connecting cross member substantially parallel to said first hinge axis; and second connecting device interposed between said cross member and each said carriage to permit relative oscillation of said cross member and the carriage about a second hinge axis perpendicular to said first hinge axis, the improvement comprising:compensating mechanism for varying an effective length of said cross member between two given values as said carriages oscillate about said first hinge axis, said compensating mechanism comprising, for each said carriage, a cylindrical body connected to one of said cross member and said carriage so as to rotate about the second hinge axis and comprising an eccentric portion and a connecting apparatus being provided to connect said eccentric portion to the other said cross member and said carriage.