| 摘要 |
PURPOSE:To lift or connect various working machines for soil preparation, etc. easily and reliably by connecting an elevator guide frame behind a tractor, connecting a working machine as free of lifting to the guide frame, and fitting the working machine through a displacement magnifying mechanism. CONSTITUTION:An elevator guide frame 3 is connected behind a tractor 1 through a connecting mechanism 2, and a working machine 5 is connected to the elevator guide frame 3 as free of lifting through a lifting mechanism 4, then the working machine 5 is lifted through a displacement magnifying mechanism 7 by means of a raising arm 6 of the tractor 1. Here, the connecting mechanism 2 is constituted with links 9-11, and the lifting mechanism 4 is constituted with a guide roller 14 of a working machine fitting frame 8 being coupled with the channel groove 13 of a vertical lever 12 as free of sliding, and furthermore, the displacement magnifying mechanism 7 is constituted with pulleys 15, 17, 19 being pivoted between the raising arm 6 and the elevator guide frame 3 and with a wire 21 being suspended across them, so that the working machine fitting frame 8 can be lifted at a displacement three times of that of the raising arm 6. |
