| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a tillage tine with very excellent turning properties, while having vibration and horsepower consumption not so inferior to those of a conventional tillage tine. Ž<P>SOLUTION: The tillage tine having a base part 3 mounted on a tine shaft 2, a straight-blade part 4 extending from the base part 3 and a curved part 5 extending from the straight-blade part 4 is provided, wherein a curve from the straight-blade part 4 to the curved part 5 is curved in the direction opposite to the rotative direction A, and the curved part 5 is bent into a curved state from one lateral surface of the base part 3 to the side of the other lateral surface, and a blade part 6 is provided on the front side in the rotative direction A ranging from the straight-blade part 4 to the curved part 5. In the tillage tine, the tine height 8 which is a distance along the tine shaft 2 from the one lateral surface of the base part 3 to the front end part 11 in the curved direction of the curved part 5 is brought to be about 75 mm; the front bending R9 which is the bending radius of the curved part 5 is brought to be about 80 mm; and the cutting angle 10 which is an angle between a line E intersecting a line D connecting the front end part C of the blade edge 6a of the blade part 6 to the axis center O of the tine shaft at right angles and extending from the front end part C to the side opposite to the rotative direction A; and a line F parallel to a bending starting line B of the curved part 5, and extending from the front end part C to the side of a peak 12 of the tillage tine is brought to be about 37° or about 40°. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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