PROBLEM TO BE SOLVED: To provide a tiller that puts a resisting bar, a tail wheel, and a ridging plate in respective attitudes appropriate for a tilling operation, a ridging operation and transport.SOLUTION: A rotating shaft (8) that rotatably fits into a cylinder (7) mounted at the rear of a machine body is provided. A resisting bar (6) is provided at one end of a support shaft (12) behind the machine body, and a tail wheel (5) is supported at the other end. The rotating shaft (8) is connected to the mid portion of the support shaft (12) while in an attitude crossing the rotating shaft. The vertical positions of the resisting bar (6) and the tail wheel (5) can be inverted by rotation of the rotating shaft (8). The rotating shaft (8) is provided in a backwardly and downwardly inclined attitude. The angle of the position where the axis (m) of the rotating shaft (8) intersects the axis (n) of the support shaft (12) is such that the angle (β) on the resisting bar side is larger than the angle (α) on the tail wheel side.COPYRIGHT: (C)2014,JPO&INPIT【課題】本発明は、抵抗棒と尾輪と畝立板を、耕耘作業・畝立作業・移送時それぞれに適した姿勢にする耕耘機にすることを課題とする。【解決手段】機体の後部に取付けられる筒体(7)に回転可能に嵌合する回転軸(8)を設け、機体の後方の支持軸(12)の一端に抵抗棒(6)を設け、他端に尾輪(5)を支持する構成とし、支持軸(12)の中間部に回転軸(8)を交差する姿勢で連結し、回転軸(8)の回転により抵抗棒(6)と尾輪(5)の上下位置を反転可能に構成とし、回転軸(8)を後下がり傾斜姿勢に設け、回転軸(8)の軸芯線(m)が支持軸(12)の軸芯線(n)と交差する位置の角度を、尾輪側の角度(α)より抵抗棒側の角度(β)を大きくすることを特徴とする耕耘機とする。【選択図】 図5
