MANUFACTURING METHOD OF INTER-ROW CULTIVATOR FRAMES Russian patent published in 2009 - IPC A01B33/00 A01B35/00 A01B39/00 

FIELD: agricultural industry.

SUBSTANCE: first of all the frame length is chosen, and then thereto is symmetrically attached an automatic coupling which is installed on the frame so that it can move longitudinally. When it is required to lengthen the frame, the latter is lengthened on one end or on both ends by means of connecting pieces of the section similar to that one on initial frame. Length of connecting pieces is aligned with the specified inter-row spacing. Section of the initial frame is hollow. Connecting pieces are installed on initial elements of a similar hollow profile. Then those are attached end-to-end and flush with the surface of initial frame at least on three sides. Initial elements are installed inside hollow connecting pieces of the frame symmetrically to both sides from the attachment point.

EFFECT: possibility of adaptation of the frame to various traction modules of tractors, and improvement of the frame flexibility.