摘要 |
PURPOSE:To largely improve the operability of the land-grading device of an agricultural machine by enabling to remotely, simply and surely switch and set the land-grading device to a land-grading work position or a ridging work position and further enabling the easy and sufficient response of the operation to the advance in the age of an operator. CONSTITUTION:A land-grading operation means 29 is disposed. In the land- grading operation means 29, a rotator 32 having an engaging member 31 for engaging or disengaging the engaging projection 28 of a support rod 26 is rotatably and pivotally supported on brackets 30, 45 attached to a frame 1. A support member 35 inserted into and supported on a support rod 26 in a forward or backward movable state is rotatably and pivotally supported on the rotator 32 with a support shaft 36. An engaging member 37 having an engaging depression 41 for disengageably engaging with the support shaft 36 is rotatably and pivotally supported on the brackets 30, 45. A forward-backward rotation motor 46 for rotating the engaging member 37 is disposed. A remote operation switch 50 for controlling the motor 50 is disposed. |