Patent ID: 8534374
Filing Date: 2013-09-17
Classification: A01B

Abstract:
1. A tillage implement comprising: a mobile frame including a center section and a pair of left and right wing sections hingedly connected to opposite lateral sides of the center section for vertical hinging movement of the wing sections relative to the center section about fore-and-aft axes as the frame traverses a field; a pair of elongated, generally end-to-end left gang assemblies on said left frame section, a pair of elongated, generally end-to-end center gang assemblies on said center frame section, and a pair of elongated, generally end-to-end right gang assemblies on said right frame section, each of said gang assemblies including a plurality of rotatable tillage tools mounted in such a manner that their axes of rotation extend generally transverse to the path of travel of the frame, each of said gang assemblies being horizontally adjustable relative to said frame for adjusting the angles between the path of travel of the frame and said axes of rotation of the tools; a hydraulic actuator for each gang assembly for effecting said angular adjustment of the gang assemblies, one of the hydraulic actuators on the center frame section comprising a master hydraulic actuator for one of the hydraulic actuators on the right frame section, and said one hydraulic actuator on the right frame section comprising a master hydraulic actuator for the other hydraulic actuator on the right frame section, the other hydraulic actuator on the center frame section comprising a master hydraulic actuator for one of the hydraulic actuators on the left frame section, and said one hydraulic actuator on the left frame section comprising a master hydraulic actuator for the other hydraulic actuator on the left frame section; and synchronizing apparatus operably interconnecting said center gang assemblies for synchronizing the center gang assemblies of the center frame section during their angular adjustment.