JPS6420018A - Controlling unit in machine working in rice paddies - Google Patents

Abstract

PURPOSE:To facilitate the control of planting depth and enable precise planting operation, by interlocking the base with the control lever so that the base moves synchronously with the float, when the planting depth is adjusted with the control lever. CONSTITUTION:When the planting depth is changed by moving the controlling lever 27 vertically, the shaft 29 rotates clockwise, as the lever moves. Thus, the arm for controlling the planting depth 51 is rotated in the same direction and the link 53 rises up. As the link 53 goes up, the link 49 also ascends to push up the pin 50. When the float goes up, the pitch between the nail top of the planter and the bottom surface of the float 14 becomes large, thereby the set value of the planting depth is changed. Accordingly, the detector 15 moves together with the base 33 synchronously with the movement of the float 14, and the complicated operations such as for changing the set value of the detector or the like are in no need every time, when the plant depth is changed, because there is no change in the standard level of the float 14 to the detector 15.