PROBLEM TO BE SOLVED: To provide a nursery bed half-cutting tool capable of accurately carrying out half-cutting on a nursery bed at low cost in a simple structure.SOLUTION: A nursery bed half-cutting tool 10 for carrying out half-cutting on a nursery bed B halfway in the thickness direction thereof, includes: a nursery bed support member 20 having a support convex face 21 for supporting the nursery bed B on the outer peripheral side thereof and a cutter member 30 having a plurality of cutting blades 32 extending from a blade support face 31 to an inner peripheral side. The nursery bed half-cutting tool 10 is configured to relatively move the nursery bed support member 20 and the cutter member 30 along a predetermined direction and to carry out the half-cutting with the plurality of the cutting blades 32 on the outer peripheral side of the nursery bed B supported by the support convex face 21.COPYRIGHT: (C)2015,JPO&INPIT【課題】低コストかつ簡素な構造で、苗床に精度良くハーフカットを施すことが可能な苗床ハーフカット治具を提供すること。【解決手段】苗床Bに厚み方向の途中までのハーフカットを施す苗床ハーフカット治具10であって、苗床Bを支持する支持凸面21を外周側に有した苗床支持部材20と、刃支持面31から内周側に延びる複数の切断刃32を有したカッター部材30とを備え、苗床支持部材20とカッター部材30とを所定方向に沿って相対的に移動させ、支持凸面21に支持された苗床Bの外周側に複数の切断刃32によってハーフカットを施す苗床ハーフカット治具10。【選択図】図1