| 摘要 |
Lever arms (13, 15) are placed on each implement section (26, 27), the horizontal angular mobility of said arms being limited by guideways (30, 31). Other lever arms (10, 12) and stabilizer rods (16, 21) fix the lever arms (13, 15) in mutually parallel positions. Before turning, the implement is disconnected from the tractor. When the tractor drives in the opposite direction, a catch arm in the opposite side of the tractor engages a coupling means (34, 35) in the opposite end of the draw mechanism and carries the implement along. The implement sections (26, 27) automatically change paths and are caused to assume parallel positions. An axial bearing (14) imparts mutual freedom of motion to the implement sections so that they can follow irregularities in the ground. |
