PROBLEM TO BE SOLVED: To provide a feed shutter in a soil feeder for a nursery box designed so as to prevent the soil feeder from enlarging in size due to broadness of a setting space and a working space of an operation mechanism.SOLUTION: The feed shutter in a soil feeder for a nursery box is provided with an upper feed hopper 2 positioning above a conveying stand 17 of a nursery box, a delivery belt 4 set up below the feed hopper 2, a feed port 5 formed between the feed hopper 2 and the delivery belt 4, and a feed shutter 6 attached to the feed port 5 wherein the feed shutter 6 is pivotally attached to a frame-side plate 31 fixed to the conveying stand 17 via a pivot shaft 10 having a square shank part 11 and regulates a feed amount of the soil with an opening/closing operation dial 50 fixed to an operation axis 45 whose axis core direction is parallel to that of the pivot shaft 10.COPYRIGHT: (C)2008,JPO&INPIT【課題】育苗箱用土供給装置の供給シャッターにおいて、操作機構の設置スペースおよび作動スペースの広さによる装置の大型化。【解決手段】育苗箱の移送台17の上方に位置する上部の供給ホッパー2と、該供給ホッパー2の下方に設けた繰出ベルト4と、前記供給ホッパー2と前記繰出ベルト4との間に形成された供給口5と、該供給口5に取付けた供給シャッタ-6とからなるなるものにおいて、供給シャッター6は、角軸部11を有する枢支軸10により前記移送台17に固定のフレーム側板31に軸装すると共に、前記枢支軸10と軸芯方向を並行に設けた操作軸45に固定の開閉操作ダイヤル50により供給量を調節するように構成した育苗箱用土供給装置の供給シャッター。【選択図】図1
