PROBLEM TO BE SOLVED: To prevent, with a simple configuration, stacking displacement of the nursery box of the nurturing box stacking apparatus.SOLUTION: Provided are a transportation member 15 for transporting the nursery box P； an initiation sensor 40 which is turned on upon detection of the transit state of the nursery box P； and a stop sensor 43 which is turned off upon detection of a state in which one rotation of the lifting mechanism 52 is completed. When the initiation sensor 40 and/or the stop sensor 43 are turned on, the transportation member 15 and the lifting mechanism 52 are driven, and when the initiation sensor 40 and the stop sensor 43 are both turned off, the transportation member 15 and the lifting mechanism 52 are stopped.SELECTED DRAWING: Figure 3COPYRIGHT: (C)2018,JPO&INPIT【課題】簡単な構成で、育苗箱積重ね装置の育苗箱の積重ねズレを防止する。【解決手段】育苗箱Ｐを搬送する搬送部材１５と、育苗箱Ｐの通過状態を検知してオンとなる始動センサ４０と、持上げ機構５２の１回転が完了した状態を検知してオフとなる停止センサ４３と、を備えた。始動センサ４０及び停止センサ４３の少なくとも一方がオンになると搬送部材１５及び持上げ機構５２を駆動し、始動センサ４０及び前記停止センサ４３の両方がオフになると搬送部材１５及び持上げ機構５２を停止する。【選択図】図３
