PROBLEM TO BE SOLVED: To provide a farm working machine capable of improving work efficiency in state switching work of a plurality of preliminary seedling placing bases by easily and quickly switching the state of the plurality of preliminary seedling placing bases.SOLUTION: The preliminary seedling placing bases 20u, 20m, 20d can be switched by a link mechanism 60 into an overlapping state in which the preliminary seedling placing bases 20u, 20m, 20d overlap in vertical multistages in a plan view and into a deployed state in which the preliminary seedling placing bases 20u, 20m, 20d are deployed in a substantially straight line in a longitudinal direction. The link mechanism 60 includes a first connection link 61 longitudinally turnable connected across the preliminary seedling placing bases 20u, 20m, 20d in the upper, middle and lower stages a second connection link 62 longitudinally turnable connected across the preliminary seedling placing bases 20u, 20m in the upper and middle stages and a third connection link 63 longitudinally turnable connected across the preliminary seedling placing bases 20m, 20d in the middle and lower stages.COPYRIGHT: (C)2013,JPO&INPIT【課題】複数の予備苗載せ台の状態切換を簡易迅速に行うことができ、複数の予備苗載せ台の状態切換作業の作業性を向上させることができる農作業機を実現する。【解決手段】予備苗載せ台20u,20m,20dが上下多段となって平面視で重複した重複状態と、予備苗載せ台20u,20m,20dが前後向きに略一直線状になって展開した展開状態とに、リンク機構60により切換可能に構成する。リンク機構60は上段、中段及び下段の予備苗載せ台20u,20m,20dに亘って連結されて前後回動自在な第1連係リンク61と、上段及び中段の予備苗載せ台20u,20mに亘って連結されて前後回動自在な第2連係リンク62と、中段及び下段の予備苗載せ台20m,20dに亘って連結されて前後回動自在な第3連係リンク63とを備えて構成される。【選択図】図5
