Land leveling earth switching arrangement null of puddling work

摘要

PROBLEM TO BE SOLVED: To enable remote operating by surely changing-over the land leveling plate of a soil pudding work machine into a land leveling state and a ridging state by means of little driving power. ;SOLUTION: The other end of a rod 28 which is pivotally supported on the upper surface of the land leveling plate in its one end is pivotally provided at the tip of a rotary arm 26 which is pivotally supported at a mainbody side in its base end and a plate 24 provided with a fitting groove being fitting and fitting-attachable/detachable to and from an engagement pin 27 provided in the rotary arm 26 in the tip is pivotally supported at a different position from the pivotally supporting position of the rotary arm 26. Then, the piston of a hydraulic cylinder 25 is connected to the base end part of the plate 24, the plate 24 is rotated by the extending/contracting operation of the hydraulic cylinder 25, the fitting part is made to be fitting and fitting-attachable/ detachable as against the engagement pin 27 and the land leveling plate 17 is changed-over into the land leveling state and the ridging state.;COPYRIGHT: (C)1998,JPO