PROBLEM TO BE SOLVED: To improve workability in performing loading or the like of preliminary seedlings or work materials.SOLUTION: A riding type rice transplanter 1 comprises: a traveling vehicle body 10 a seedling planting device 15 mounting table devices 100R and 100L for loading at least preliminary seedlings and mounting table device support units 200R and 200L for rotatably supporting the mounting table devices. The mounting table device 100R includes: a preliminary seedling mounting table 120 a material mounting table 110 a first link arm member 171 and a second link arm member 172 that have one end rotatably supported by the mounting table device support unit 200R and the other end connected to the preliminary seedling mounting table 120. To the second link arm member 172 is vertically movably connected a holding member 180 with a pin, the holding member being capable of being held. On the mounting table device support unit 200R side are provided a first through hole 230a, a second through hole 230b, and a third through hole 230c that regulate rotation of the second link arm member 172 when the holding member 180 with a pin moves downwards at a predetermined position.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2017,JPO&INPIT【課題】予備苗や作業資材を積み込み等する際の作業性の向上を図ること。【解決手段】乗用型田植機1は、走行車体10と、苗植付装置15と、少なくとも予備の苗を積載する載置台装置100R、100Lと、載置台装置を回動可能に支持する載置台装置支持部200R、200Lと、を備え、載置台装置100Rは、予備苗載せ台120と、資材載せ台110と、載置台装置支持部200Rに一端が回動可能に支持されており、他端が予備苗載せ台120に連結された第1リンクアーム部材171及び第2リンクアーム部材172と、を有し、第2リンクアーム部材172には、把持可能なピン付き把持部材180が上下動可能に連結されており、載置台装置支持部200R側には、ピン付き把持部材180が所定位置で下方に移動したときに第2リンクアーム部材172の回動を規制する第1貫通孔230a、第2貫通孔230b、第3貫通孔230cが設けられている。【選択図】図1
