초록 ▼

A frame for a tillage implement includes a pair of opposing frame sections pivotally connected to a central kingpost for a folding movement between a transversely extending working position and a longitudinally extending transport position. The frame sections have mounted thereto a number of tool su

A frame for a tillage implement includes a pair of opposing frame sections pivotally connected to a central kingpost for a folding movement between a transversely extending working position and a longitudinally extending transport position. The frame sections have mounted thereto a number of tool sub-frames carrying ground engaging working tools. The tool sub-frames are pivotally movable relative to a rockshaft carried by the frame sections so as to be rotatable between a lowered operative position and a generally vertical raised non-working position. Depth control for the ground engaging tools is accomplished through the rotation of the rockshaft about its pivot lug. The frame sections are connected at the inner end to the kingpost so that the main frame members abut when placed in the working position. Each frame member is supported by a pair of wheel assemblies at the inner and distal ends respectively. The inner wheel assemblies of each frame section is steered by a link connecting the wheel spindle to the hitch member to control the orientation thereof.

대표청구항 ▼

1. An agricultural implement frame connectable to a prime mover for movement along a direction of travel, said implement frame being convertible between an operative configuration and a transport configuration, comprising:a pair of frame assemblies upon which a plurality of ground working tools may

1. An agricultural implement frame connectable to a prime mover for movement along a direction of travel, said implement frame being convertible between an operative configuration and a transport configuration, comprising:a pair of frame assemblies upon which a plurality of ground working tools may be mounted, said frame assemblies being oriented transverse to said direction of travel when in said operative configuration and generally parallel to said direction of travel when in said transport configuration, said frame assemblies having an inner end and a distal outer end; a pivot mechanism positioned between said frame assemblies so as to pivotally connect said inner ends of said frame assemblies such that said frame assemblies fold forwardly with said outer ends being forwardly of said inner ends when said frame assemblies are in said transport configuration; a hitch mechanism pivotally connected to said frame assemblies and extending forwardly thereof for connection with said prime mover; and first ground engaging wheel assemblies supporting said inner ends of said frame assemblies and second ground engaging wheel assemblies supporting said outer ends of said frame assemblies, said hitch mechanism being devoid of ground engaging wheels for support thereof, said second wheel assemblies being mounted for castering movement, said first wheel assemblies being steered for proper orientation thereof when in said operating and transport configurations, both said first and second wheel assemblies remaining engaged with the ground to support said inner and outer ends, respectively, of said frame assemblies when placed in said transport configuration; and wherein said pivot mechanism includes a mounting tongue projecting rearwardly of a pivot axis, each said frame assembly including a hydraulic fold cylinder connected to said mounting tongue to effect pivotal movement of the corresponding said frame assembly about said pivot axis.