| 摘要 |
PURPOSE: A safety apparatus for an auxiliary harrow is provided to minimize deformations or damage to an auxiliary harrow due to impacts caused by a collision with obstacles and to prevent an overload of the auxiliary harrow. CONSTITUTION: A safety apparatus for an auxiliary harrow comprises: a central harrow(110); a pair of auxiliary harrows formed and folded on both sides of the central harrow with a hinge shaft; a stopper(140) installed on both ends of the central harrow; a guide axis(150) installed to move forward and the backward; a supporting plate(160) formed to rotate by a hinge shaft(170) included in the vertical end of the guide axis; a fixing hole(190) connected to the rear of the guide axis; and a spring(180) installed in between the auxiliary harrow and the fixing hole while inserted to the exterior of the guide axis. |
