FIELD TILLER (VERSIONS) Russian patent published in 2009 - IPC A01B33/00 A01B59/04 

FIELD: agriculture.

SUBSTANCE: bar frame of the field tiller is made of length Bmin according to the defined ratio counting minimal power of a tractor. According to the first version, if more powerful tractor is applied the bar frame is made with possibility being increased from one end to the length Bmin of the bar frame or its half together with operating elements till the limit length for back roads, precisely Bmin=8 m. And a lock of automatic coupling is made with possibility to remove the increased bar frame to the joint and fix symmetrically to it. According to the second version, if more powerful tractor is applied, side wings are attached symmetrically from both sides of the bar frame, the side wings are made of the bar frame together with operating elements with the length Bmin or half of it till tractor power decrease, but the total length is not more than 22-25 m, with possibility to fold up or horizontally forward with the help of open-side hinges and hydraulic cylinder. Note that, self-castering wheels are additionally fixed on the side wings, closer to its ends.

EFFECT: possibility for any tractor to select optimal version of arrangement of the field tiller.

2 cl, 2 dwg