Agricultural folding tool bar,申请号US19810240747-传众专利搜索

Agricultural folding tool bar

申请公布号：US4336846(A)

申请号：US19810240747

申请日期：1981.03.05

申请公布日期：1982.06.29

申请人：

INTERNATIONAL HARVESTER CO.

发明人：BOETTO, CHARLES

分类号：A01B73/04;(IPC1-7):A01B73/00

主分类号：A01B73/04

摘要：A tool bar having a hollow central section and oppositely extending offset hinged wings movable from a generally horizontally transversely extending working position to a folded transport position. A hydraulic cylinder is positioned in the central section adjacent each wing and has its rod pivotally connected to a pair of rollers substantially spanning the hollow central section and to a pair of links via a slotted connection, with the links also being pivotally connected to the ear of a wing. The rollers reduce wing fall as the wing moves from the working position approximately 180 DEG to a transport position on top of the central section or vice versa. The slotted link connection prevents binding of the rollers against the central section during the procedures.