To enable grass to be gathered satisfactorily in the middle when a tractor turns in a weeding / packaging working machine which packs with a roll baler immediately after being grassed by a grass weighing device.SOLUTION: A grass collecting / packing operation for connecting a grass collecting device 2 to the rear of a tractor T, joining the roll baler 3 to the grass collecting device 2 and packing it with the roll baler 3 immediately after grass collection by the grass collection device 2 In the machine 1, the grass collection device 2 includes a towing frame 11 connected to the rear side of the tractor T, a pair of pickup grass collecting mechanisms 12 connected to both the left and right sides of the towing frame 11 in a substantially inverted V-, And an angle adjusting mechanism 15 for adjusting the extension angle in plan view of the pickup grass collecting mechanism 12. The angle adjusting mechanism 15 is operated in accordance with the turning of the tractor T so that the side opposite to the turning direction of the tractor T The angle of extension of the pickup grass collection mechanism 12 is adjusted along the turning direction of the tractor T.(FIG.【課題】集草装置で集草した直後にロールベーラにより梱包を行う集草・梱包作業機において、トラクタの旋回時に、草を良好に中央に集めることができるようにする。【解決手段】トラクタTの後方に集草装置2を連結し、集草装置2にロールベーラ3を結合して、集草装置2で集草した直後にロールベーラ3により梱包を行う集草・梱包作業機1において、集草装置2は、トラクタTの後方に連結される牽引フレーム11と、牽引フレーム11の左右両側に平面視で略ハの字状に接続される一対のピックアップ集草機構12と、ピックアップ集草機構12の平面視の延設角度を調整する角度調整機構15とを備え、トラクタTの旋回に応じて角度調整機構15を動作して、トラクタTの旋回方向に対して逆側のピックアップ集草機構12の延設角度を、トラクタTの旋回方向に沿って角度調整する。【選択図】図2
