PROBLEM TO BE SOLVED: To provide a seeder of a seeding machine in which a soil-covering amount of seeds sown in a farm field is stabilized, and a soil-covering plate can be easily removed when the soil-covering work is not necessary.SOLUTION: In a seeding machine, a seeder 2 and a ground-leveling float 3 are mounted at the rear part of a vehicle body 1, and seeds delivered from a seeding hopper 4 of the seeder 2 are guided to a furrowing part formed by a furrowing device 5 of the float 3. The machine is provided with an operation tool capable of switching the position of a soil-covering plate 6 for covering a seeding furrow formed by the furrowing device 5 of the float 3 with soil between a soil-covering posture position A and a storage posture position B that does not cover the soil. A vertically swingable and rotatable float shaft 8 of the float 3 is provided at the lower position of a seeding frame 9 in a lateral direction, and the rear end part of the soil-covering plate 6 is positioned below the float shaft 8.COPYRIGHT: (C)2015,JPO&INPIT【課題】圃場に播種された種子の覆土量を安定させると共に、覆土作業が不要な時には覆土板を簡単に外すことができる播種作業機の播種装置を提供する。【解決手段】走行車体1の後部に播種装置2と整地用フロート3を装着して、播種装置2の播種ホッパー4から繰出す種子を、フロート3の作溝器5で形成される作溝部へ播種案内する播種機において、フロート3の作溝器5で形成される播種溝を覆土する覆土板6を、覆土姿勢位置Aと、覆土しない収納姿勢位置Bに切替可能の操作具を設けると共に、フロート3の上下揺動回動のフロート軸8を播種フレーム9の下部位置に横方向に亘って設け、覆土板6の後端部を、フロート軸8の下方に位置させて設け構成する。【選択図】 図2
