| 摘要 |
PURPOSE:To improve working efficiency by installing a means detecting larger values of going up and down of a working machine and acting degree of rolling driving and control than set values and a decelerating means automatically decelerating traveling speed of a machine body according to the detecting action of said detecting means. CONSTITUTION:A means A detecting larger values of going up and down of a seedling transplanting machine 4 and acting degree of rolling driving and control than set values and a decelerating means B automatically decelerating traveling speed of a machine body according to the detecting action of said detecting means A are installed in the subject working car. A potentiometer PM2 detecting going up and down and shaking action of a link mechanism 3 is installed at a connection point in a machine body side of the link mechanism 3 and a potentiometer PM3 detecting rolling action is installed in the vicinity of a center of rolling, then speed change is performed by driving of an electrical cylinder with a controller of a nonstep variable speed gear 8 to coincidence of an operating amount of a second speed-changing lever 13 and a detected amount of a potentiometer for feed back. |
