| 简介 |
PROBLEM TO BE SOLVED : According to the state of a ridge sheet soil removal capacity can be adjusted. SOLUTION : The soil removal section 104 is provided with a ridge sheet winding device, earth removal section 104 is, ridge sheet 200 on one face of the earth is stripped off and removed in the second edge portion 150a of the 1, 1 on the upstream side of the first edge portion 150a and disposed on the other side of the ridge seat 200 soil is stripped off and removed in the second edge portion 152a of the 2, 2 of the first edge section 152a than a ridge sheet 200 is disposed on the upstream side edge portion thereof is provided with a guide portion 153, the edge portions 150a, 152a of the first second of 2 1, and a guide portion 153 on a virtual line connecting the winding part 102 from VL in the vertical direction and each positioned at a different position, the edge portion 152a of the first guide portion 153 2 and 2 to the position of the edge portion 152a of the first edge portion 150a to 1 for adjusting the position of the adjusting mechanism can be provided. Selected drawing : fig. 5 |
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