The present invention is coupled to a pair of connecting frame which is mounted to rotate in the vertical direction on one side of the tractor or rotor, and the harrow plate is coupled to the pivot in the vertical direction to the front of the connecting frame and In the tractor harrow consisting of a hydraulic cylinder for rotating the harrow plate in the vertical direction, the support bracket having a first hinge shaft in the upper portion and a second hinge shaft in the lower portion, but having a stopper on the middle or lower side thereof. It is installed at the front of the connecting frame, the upper bracket has a third hinge shaft and the lower bracket is formed on one side of the harrow plate to form a fourth hinge shaft, the upper support between the first hinge shaft and the third hinge shaft Coupled to, and the link between the second hinge axis and the fourth hinge shaft, the one side or both sides of the upper support To provide a tractor harrow to be formed so as to rotate with the first hinge shaft and the third hinge shaft, the present invention is to guide the harrow plate to bend smoothly in the downward direction to the flattening of Munon Has the effect of maximizing. In addition, the present invention has the effect of being able to lift in the upper direction in a stable support state of the harrow plate to improve the work efficiency. In particular, the present invention is a very useful invention that can increase the range of use as well as use efficiency because it can be easily applied without modifying and modifying the existing tractor harrow as a whole.Harrow, Climb, Descent, Hinge, Harrow본 발명은 트랙터 또는 로터베이터의 일측에 상하방향으로 회동할 수 있도록 장착되는 한 쌍의 연결프레임과, 상기 연결프레임의 전방에 상하방향으로 회동할 수 있도록 결합하되 중앙에 브라켓이 구비되는 써레판과, 상기 써레판을 상하방향으로 회동시키기 위한 유압실린더로 이루어지는 트랙터용 써레에 있어서, 상부에는 제1힌지축을 구비하고 하부에는 제2힌지축을 형성하되 중간 또는 하부 일측에는 스톱퍼를 구비하는 지지브라켓을 상기 연결프레임의 전방에 설치하고, 상부에는 제3힌지축을 구비하고 하부에는 제4힌지축을 형성하는 연결브라켓을 상기 써레판의 일측에 설치하며, 상기 제1힌지축과 제3힌지축의 사이에 상부지지대를 결합하고, 상기 제2힌지축
