Rotary for ridge and furrow forming and Vinyl automatic covering

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PURPOSE : An automatic rotary of tractor permitting the formation of a hill and covering of a vinyl sheet on the hill to be completely achieved without causing damage to the vinyl sheet to be covered is provided. Therefore, the machine can minimize a traction force of the tractor while easily fixing the vinyl sheet regardless of quality of soil and permits quick and easy performance of the work. CONSTITUTION : In the rotary of tractor, an excavation apparatus(1) and a hill forming device(2) are mounted on a fixing frame(7), an earth and sand discharging device(3) and a vinyl sheet holder(4) are installed on a fixing rod(6), an excavating drum is installed on the excavation apparatus. The hill forming device is connected with a ridge forming plate at the right and left side of a furrow forming plate to be rotatively driven by a hinge, the earth and sand discharging device is integrally formed of a earth and sand guide device(31) and a guide device(32), and the vinyl holder is formed of two holding rods to hold a vinyl roll(8).