FURROW-OPENING APPARATUS OF PADDY FIELD WORKING MACHINE PROVIDED WITH FERTILIZING APPARATUS

摘要

PURPOSE:To enable stable application of fertilizer while decreasing the dragging resistance by driving and rotating a furrow-opening tool in such a manner as to move the soil-thrusting part backward. CONSTITUTION:The furrow-opening tool 17 of a furrow-opening apparatus C is composed of an inclined stationary plate 15 and a dish-shaped disk 16 rotatable around a horizontal shaft P3 and placed parallel to the above plate. The furrow-opening tool 17 is positioned under a feed case 18 of a transplantation mission 1. A one-way clutch 19 forcibly rotates the disk 16 in a direction to move the lower side backward and allows the rotation of the disk 16 at a rotational speed higher than that of the forced driving. The dragging resistance can be decreased to enable stable fertilization and prevent the damage of the furrow-opening apparatus and the entanglement of foreign materials.