Patent ID: 7644941
Filing Date: 2010-01-12
Classification: A01B,B60G

Abstract:
1. An axle suspension for first and second implement ground support wheels adapted for rotation about first and second wheel axes, the wheels supporting an implement frame, the axle suspension comprising a housing connected to the implement frame, the housing having an interior portion supporting first and second axle carriers for pivoting in upright directions about first and second pivotal axes, respectively, the axle carriers each comprising first and second outwardly extending members extending on opposite sides of the housing in the direction of the wheel axes, wherein the first and second wheel axes are generally fixed with respect to the first and second outwardly extending members, first and second upright members fixed to the outwardly extending members for pivoting therewith and with the first and second wheel axes about the first and second pivotal axes, a connector extending between the upright members and connected to the upright members at a location offset radially from the first and second pivotal axes, the connector constraining the axle carriers for rotation in the same direction about the pivotal axes so that as one of the first and second wheel axes moves upwardly the other of the first and second wheel axes moves downwardly.