PROBLEM TO BE SOLVED: To improve durability of a seedling planting device by eliminating the oozing-out of lubricant from a sliding unit of a planting rod case and an extrusion fork and the entry of field water into the planting rod case.SOLUTION: A seedling planting device of a seedling transplanting machine is characterized as follows: an extrusion fork 95 pivoted with a pivoting member 100 and holding a case projecting side in an air-tight manner with a seal member 105 in a planting rod case 80 is reciprocated and driven by an extrusion cam 82 rotating in the planting rod case 80 an oil groove 101a is provided in an outer circumference or a support hole 101 of the pivoting member 100 along an axial direction, in a seedling planting device 60 for pushing the seedling scraped by seedling picking fingers 81 using an extrusion body 104 provided at the tip of the extrusion fork 95 and an oil hole 106 in communication with an extrusion cam 82 side inner cavity in the planting rod case 80 from the oil groove 101.SELECTED DRAWING: Figure 6【課題】本発明は、植込杆ケースと押出フォークの摺動部からの潤滑油の滲み出しや圃場水の植込杆ケース内への侵入を無くすることで、苗植付装置の耐久性を向上することを課題とする。【解決手段】植込杆ケース80に軸支部材100で軸支してケース突出側をシール部材105で気密に保持する押出フォーク95を植込杆ケース80内で回転する押出カム82で往復駆動し、押出フォーク95の先端に設ける押出体104で苗取りフィンガー81が掻き取る苗を押し出す苗植付装置60において、軸支部材100の外周または支持穴101に軸方向に沿ってオイル溝101aを設け、該オイル溝101aから植込杆ケース80内の押出カム82側内腔に通じるオイル穴106を設けたことを特徴とする苗移植機の苗植付装置とする。【選択図】図6
