| 摘要 |
PURPOSE:To permit automatic correction of the rolling pose of the paddy working machine on turning, by providing a center ground sensor which can move vertically and roll on the front at the middle point between the left and right grounding sensor 18a, 18b. CONSTITUTION:The water paddy working machine is provided with a couple of ground sensors 18a and 18b on both left and right sides so that they can freely ascend and descent independently from each other. A relative difference in ascending and descending is sent to the rolling control valve 17 by the grounding pressures to control rolling. Additionally, a center ground sensor 7 which is vertically movable around the rear support point P2 and rollable is set on the front of between the ground sensors 18a and 18b to send changes of grounding pressure to the rolling control valve 17. A contact pin 34 is projected in front of the sensors so that the rising motion over the setting value for the center ground sensor 7 is controlled by contact at only one point. Thus, the rolling becomes controllable on turning, even when the body is inclined.
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