| 摘要 |
An agricultural implement pulled by a traction vehicle is convertible between use and transport configurations. The implement includes a carrier frame coupled to the vehicle via the combination of a hitch and a draft tongue having an aft portion pivotally coupled to the carrier frame and including a generally vertical cornered post rotatable about a vertical pivot axis. A lift frame having plural spaced row units includes an integral center frame section with a sleeve closely engaging and vertically slideable along the cornered post. A first displacement arrangement moves the aft portion of the draft tongue between the use position and a first elevated position for avoiding obstructions and to facilitate turning in a field, while second and third displacement arrangements respectively raise the lift frame higher on the vertical post and rotate the post and lift frame about the vertical axis to a longitudinal position for transport.
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