Tractor hitch

A hitch for a vehicle having a fore and aft extending body having left and right sides and carrying a fluid power system, comprising:

• frame means integral with the left and right sides of said vehicle body;
• left and right fore and aft extending draft links having respective fore ends pivotable proximate said frame means and having respective aft ends respectively distal from the respective fore ends thereof;
• left and right draft link support means respectively connected to said frame means for respectively supporting said left and right draft links in a plurality of pivoted positions;
• a left and right extending rockshaft disposed proximate the fore ends of said left and right draft links pivotally secured to said frame means;
• bellcrank means pivotally mounted on said rockshaft and pivotally carrying the respective fore ends of said left and right draft links cooperating with said draft link support means for causing fore and aft movement thereof upon pivotation of said bellcrank means;
• and bellcrank fluid actuator means secured to said bellcrank means and said vehicle body and connected to said fluid power system to cause pivotation of said bellcrank means.

A hitch for a vehicle having a fore and aft, and left and right extending body having a left and right extending aft axis of rotation for aft ground engaging wheels and carrying a fluid power system to tow an implement having tow connector means provided thereon, comprising:

• left and right frame means respectively integral with the left and right extensions of said vehicle body;
• a left and right extending rockshaft disposed aft of and below said aft axis and pivotally secured to said left and right frame means;
• left and right extending bellcrank means pivotally encircling said rockshaft and including a crank arm extending radially therefrom;
• bellcrank fluid actuator means pivotally secured to said crank arm and to said vehicle body, and connected to said fluid power system and to cause selective pivotation of said crank arm means and said bellcrank means;
• left and right fore and aft extending draft links having respective fore ends homokinetically connected to said bellcrank means spaced from said rockshaft and respectively proximate said left and right frame means whereby pivotation of said bellcrank means causes fore and aft motion of said draft links, and having respective aft ends distal from said fore ends carrying means adapted for connection with said tow connector means on said implement;
• and left and right draft link support means respectively secured to the left and right frame means, said left and right draft links, and said rockshaft to respectively support said left and right draft links in a plurality of pivoted fore and aft positions.

A hitch to tow a tow connector means equipped implement for vehicle carrying a fluid power system and having a forward body section carried by left and right forward drive wheels rotatable on a fore axis articulately joined to an aft body section carried by left and right aft drive wheels rotatable on an aft axis, comprising:

• left and right frame means integral with said aft body section respectively disposed inwardly of said left and right aft drive wheels;
• a left and right extending rockshaft disposed aft of and below said aft axis and pivotally secured to said left and right frame means;
• left and right bellcrank means pivotally encircling and carried by said rockshaft, said bellcrank means including an upwardly extending crank arm and downwardly extending left and right clevis portions respectively proximate said left and right frame means;
• bellcrank fluid actuator means connected to said fluid power system and pivotally secured to said left frame means, said bellcrank fluid actuator means actuable by said fluid power system to cause selective pivotation of said bellcrank means;
• left and right fore and aft extending draft links having respective fore ends respectively homokinetically connected to said left and right clevis portions of said bellcrank means, said left and right draft links having respective aft ends respectively having left and right homokinetic bearings provided therein distal from said respective fore ends, said left and right draft links having respective left and right connecting clevis portions on the upper portions thereof between the respective fore and aft ends;
• left and right generally fore and aft extending lift arms having respective fore ends fixedly secured to said rockshaft respectively to the right and left of said bellcrank means and having respective aft ends respectively including left and right connecting clevis portions, said left and right lift arms respectively having left and right actuator clevis portions provided in the upper portions thereof between the respective fore and aft ends;
• left and right generally fore and aft extending lift fluid actuator means connected to said fluid power system and respectively pivotally secured to said left and right frame means at the respective fore ends of said lift fluid actuator means and to said left and right actuator clevis portions of said respective left and right lift arms at the respective aft ends of said lift fluid actuator means, said lift fluid actuator means actuable by said fluid power system to cause selective pivotation of said left and right lift links;
• left and right generally vertically extending lifting means having respective upper ends homokinetically secured to the respective connecting clevis portions of said left and right lift arms and having respective lower ends homokinetically secured to the respective connecting clevis portions of said left and right draft links;
• and coupler frame means connected to said left and right homokinetic bearings of said left and right draft links, said coupler frame means having coupler means adapted for connection to said implement tow connector means.