PROBLEM TO BE SOLVED: To solve problems in a conventional multi-row agricultural working machine where multiple work units are juxtaposed in the horizontal rack beam of a traveling vehicle and worked on multiple rows simultaneously while being moved, in which an overall length of the working machine becomes large and it cannot be loaded on the vehicle in the movement between fields.SOLUTION: A horizontal rack beam 7 is constituted of a basic beam part 7a supported to tractor 1 and movable beam parts 7b, 7c turnable to the basic beam part 7a. Also, the horizontal rack beam includes: a shaft center circumference turning mechanism 59 for turning a seeding unit 9 mounted on the movable beam parts 7b, 7c around the shaft center 58 of the basic beam part 7a, and raising it from a bottom position 81 to a top position 82 more than the horizontal rack beam 7 and a horizontal turning mechanism 60 for turning the movable beam parts 7b, 7c to an outer end of the basic beam part 7a substantially horizontally, while holding a seeding unit 9 to the top position 82.COPYRIGHT: (C)2016,JPO&INPIT【課題】従来より、作業ユニットを走行車両の横架ビームに複数並設し、移動させながら複数条に同時に作業を施す多条農用作業機があるが、該作業機の全幅が大きくなり、圃場間の移動等の際に運搬車に積載できない、という問題があった。【解決手段】横架ビーム7は、トラクタ1に支持される基礎ビーム部7aと、該基礎ビーム部7aに対して回動可能な可動ビーム部7b・7cとから構成すると共に、該可動ビーム部7b・7cに取り付けた播種ユニット9を、基礎ビーム部7aの軸心58周りに回動し、下位置81から横架ビーム7よりも上位置82まで上昇させる軸心周り回動機構59と、播種ユニット9を上位置82に保持した状態で、可動ビーム部7b・7cを基礎ビーム部7aの外端に対して略水平回動させる水平回動機構60とを備えた。【選択図】図2
