REAR FURROW WHEEL CONTROL STRUCTURE FOR DISC TILLERS AND THE LIKE

摘要

Control structure for the rear furrow wheel of a disc tiller or the like including a first arm pivotally mounted on the rear portion of the frame and a second arm pivotally mounted medially on the rearward end of the first arm and rotatably supporting the furrow wheel on one of its ends. A pair of concentric link members are connected to the arms and are slidable through a trunnion structure on the frame as the furrow wheel moves from its operating to its turning and transport positions. Adjustable stops on each of the members are biased against the forward end of the trunnion by a spring and cable mechanism to normally maintain the furrow wheel in its operating position, the mechanism being yieldable to permit the wheel to swing to its turning and transport positions in response to an abnormal side load on the wheel. A latch mechanism is provided to selectively lock the wheel in the latter position.