| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve a problem in that labor and time necessary for sowing depth adjustment work increase when the number of dealing rows of the sowing machine is increased, since the sowing depth is adjusted for each of groove-forming tools in the sowing machine arranging a front wheel and rear wheel at the front and rear of a machine body frame, installing sowing units including a sowing device and groove-forming tool between the front wheel and rear wheel in the left to right direction in a row, and sowing a plurality of rows together. <P>SOLUTION: This sowing machine is provided by installing a sowing depth adjustment mechanism 64 capable of inclining all sowing units 17 at the same time to at least a part of the machine frames 2, 3, dividing the machine frames 2, 3 in halves of front and rear to front frames 2a, 3a supporting the front roller 5 and rear frames 2b, 3b supporting the compacting roller 6, linking them as capable of vertically bending by centering around linking shafts 4L, 4R, and also making all the sowing units 17 as capable of inclining at the same time by supporting all the sowing units 17 with only one of them to change the angles 67, 68 which are the bending angles. <P>COPYRIGHT: (C)2013,JPO&INPIT |
