PROBLEM TO BE SOLVED: To provide a spreader in which supply accuracy of fertilizer is improved in spreading a small amount and in which changeover of small amount spreading and regular spreading is facilitated.SOLUTION: In the spreader, an adjustment part for adjusting a fall amount of an object 105 to be spread is provided with an operation part 108 by which a shutter plate 202 is moved relatively in a fixed direction and other directions for a hopper bottom plate 201. A fertilizer fall port is composed of a plurality of fertilizer fall ports for regular spreading, while an opening adjustment hole is provided with a plurality of opening adjustment holes for regular spreading and with one opening adjustment hole for a small amount spreading. With the shutter plate 202 relatively moved for the hopper bottom plate in a fixed direction by the operation part, the plurality of the fertilizer fall ports for regular spreading and the plurality of opening adjustment holes for regular spreading are made to coincide with each other. With the shutter plate relatively moved for the hopper bottom plate in other directions by the operation part 108, the opening adjustment hole for a small amount spreading is made to coincide with one of the fertilizer fall ports for regular spreading.COPYRIGHT: (C)2015,JPO&INPIT【課題】少量散布、少量散布時の肥料の供給精度を向上させ、少量散布と通常散布の切換を容易にする散布機を提供する。【解決手段】被散布物１０５落下量を調整する調整部に、シャッタ板２０２を、ホッパ底板２０１に対して相対的に一定方向及び他方向に移動させる作動部１０８を有する散布機である。肥料落下口は複数の通常散布用肥料落下口からなり、開口調整孔は複数の通常散布用開口調整孔および１個の少量散布用開口調整孔を有し、シャッタ板２０２を作動部により、一定方向にホッパ底板に対して相対移動すると複数の通常散布用肥料落下口及び複数の通常散布用開口調整孔両者は一致しシャッタ板を作動部１０８により、他方向にホッパ底板に対して相対移動することで、少量散布用開口調整孔は、通常散布用肥料落下口の１個と一致させる。【選択図】図２
