BRIDGE UNIT FOR AGRICULTURAL WORK Russian patent published in 1995 - IPC

FIELD: agriculture. SUBSTANCE: support uprights 2 of each driving wheel 3 of outer and intermediate self-propelled supports of the unit have joints in the form of two interconnected support rings 6, 7 arranged coaxially with universal joints 8. This allows the driving support wheels widely spaced with relation to the multiple-support and multiple-span to turn through 90 deg and permits the unit to move under its own power in orthogonal directions. The self-propelled supports do not interfere with movements of the movable platform over the truss from one end of the multi-span truss to the other. EFFECT: improved design. 4 dwg