| 摘要 |
PROBLEM TO BE SOLVED: To solve the problems of a large-sized implement comprising the impossible work of only the 1st bottom for the opening work and the difficult opening work for forming a furrow ditch as a furrow soil inversion space in the first tilling and inversion work. SOLUTION: The bottom plow implement 100 is provided with a front frame 12 having a mast 13, bottoms 41, 42, 43, 44, 45 attached to a frame of the front frame, a cross-shaft 14 attached to the front frame through a pivoting part and an extension means such as tilt cylinder 50 acting on the front frame and the cross-shaft. The front frame is tilted relative to the cross-shaft by the extension and contraction of the tilt cylinder as the extension means. COPYRIGHT: (C)2005,JPO&NCIPI
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