| 摘要 |
<p>. A foldable implement frame and hitch for attachment of a draft vehicle equipped with a three-point hitch, including a support frame carrying a support wheel, a main frame having two telescoping longitudinal frame members and a cross frame member rigidly secured to the rear end of the outer longitudinal frame member, means pivotally interconnecting the support frame and the outer longitudinal frame member adjacent to the rear end thereof and a hitch on the other end of the inner longitudinal frame member for connection to the three-point hitch on a draft vehicle, two wing frames pivotally mounted respectively on either side of the mainframe, two wing motors connected between the outer longitudinal frame member and the wing frames for assisting in moving the wing frames between the extended working positions and retracted transport positions, two wing wheel assemblies respectively mounted on the outer ends of the wing frames and each including a support wheel for supporting the outer end of the wing frames, two wing wheel lift motors respectively mounted on the wing frames and connected to the associated wing support wheel for moving it between a working position and a transport position, n elevating motor connected between the support frame and the main frame and operable to move the main frame between a lower working position and a higher transport position, the controls for all the motors being operable from the seat of the draft vehicle so that the foldable implement frame and hitch can be moved between the working position and the transport position while the operator is seated on the draft vehicle.</p> |
