PROBLEM TO BE SOLVED: To provide an agricultural implement having a small number of components, simply structured, performing a changeover operation between a bent state and a working state and retention thereof, and reducing various kinds of costs.SOLUTION: An agricultural implement A is provided with: a connection frame 1 connected to a traveling vehicle C having a direction intersecting with the travelling direction of the travelling vehicle C as an implement width a movable frame 2 rotationally pivoted on the connection frame 1 around an axis intersecting in a direction parallel to an implement width direction, and flexibly changing over a bent state and an expanded state with respect to the connection frame 1 a cylinder 3 disposed so as to range from the connection frame 1 to the movable frame 2, and making the movable frame 2 rotate by expansion and contraction thereof and a frame retention part 4 limiting the rotation in one direction and the rotation in another direction of the movable frame 2, retaining the bent state and the expansion state of the movable frame 2 and performing a retention operation and a retention-releasing operation in conjunction with the expansion/contraction movement of the cylinder 3.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2017,JPO&INPIT【課題】構成部材が少なく、より簡単な構造で、屈曲状態と作業状態との切替動作及び保持を行うと共に、各種コストを低減する。【解決手段】走行車Cの走行方向と交差する方向を機幅として、走行車Cに連結される連結フレーム1と、連結フレーム1に機幅方向と平面方向で交差する軸を中心として回転自在に軸支され、連結フレーム1に対して屈曲状態と拡開状態とに切換え自在な可動フレーム2と、連結フレーム1と可動フレーム2とにわたるように配置され、伸縮によって可動フレーム2を回転させるシリンダ3と、可動フレーム2の一方向の回転及び他方向の回転を所定の位置で制限すると共に、可動フレーム2の屈曲状態及び拡開状態を保持し、且つシリンダ3の伸縮動に連動して保持動作及び保持解除動作するフレーム保持部4とが備えられている農作業機A。【選択図】図1
