PROBLEM TO BE SOLVED: To provide a stacking facility for improving working efficiency while maintaining the stacking posture of seedling raising boxes leading to accurate loading.SOLUTION: This stacking facility is provided with an impact absorption stopper (356) gradually decreasing the speed of the conveying speed of a seedling raising box (C) while making a contact with the seedling raising box (C) conveyed by a conveyer for conveying a seedling raising box and stopping the seedling raising box (C) at a predetermined position, a stacking device lifting up the seedling raising box (C) at the predetermined position from lower direction and stacking them by a predetermined number of stages, and a forced withdrawal device (231) for forced withdrawal of the impact absorption stopper (356) from the seedling raising box (C) during the time after the impact absorption stopper (356) stops the seedling raising box (C) and the stacking device performs the lifting up movement of the seedling raising box (C) at the predetermined position.COPYRIGHT: (C)2013,JPO&INPIT【課題】 本発明は、段積設備において、育苗箱の積付姿勢ひいては移載精度を良好に維持しながら、作業能率向上を図ることを課題とする。【解決手段】 育苗箱搬送コンベヤで搬送される育苗箱(C)に接触しながら該育苗箱(C)の搬送速度を徐々に減速して該育苗箱(C)を所定の位置で停止させる衝撃吸収ストッパ(356)と、前記所定の位置にある育苗箱(C)を下方から持ち上げて所定の段積枚数に段積する段積装置を設け、衝撃吸収ストッパ(356)が育苗箱(C)を所定の位置で停止させた後、前記所定の位置にある育苗箱(C)を段積装置が持ち上げ動作する間は、衝撃吸収ストッパ(356)を当該育苗箱(C)から退避させる強制退避装置(231)を設けた。【選択図】 図8