| 摘要 |
An improvement in a dual wing agricultural implement. Each wing consists of a plurality of parallel members having a first end and a second end. The members are pivotally secured in spaced relation to a central frame such that the members pivot laterally in relation to the central frame. A plurality of transverse crossmembers are pivotally mounted to and extend between the members thereby maintaining the parallel spacing of the members. A geometric figure of a parallelogram is formed by a transverse plane which extends through the mounting positions of the cross-members and the parallel members. The parallelogram is oriented such that the transverse plane remains constant in relation to the direction of travel regardless of the pivotal positioning of the wings. Tool mounting brackets are secured to the cross-members.
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