| 摘要 |
<p>The invention concerns a blade (1) for a blade-holder frame to be fixed to a tractor, said blade (1) comprising a blade body (2) fixed to said frame, said blade body (2) having in the extension of a substantially vertical part (2B) to be fixed to the frame body at least a working portion (2A) vertical or slightly inclined at an angle β relative to the vertical plane passing through the part of the blade body to be fixed to the frame body. Said blade is characterised in that the blade body (2) working portion (2A) is provided at, or in the proximity of, its lower part on each of its sides with at least one wing (3A, 3B) extending in a substantially horizontal plane, and the leading edges (5A, 5B) of the wings (3A, 3B) are arranged offset relative to each other, the leading edge (5A), of one (3A) of the wings being arranged at the front of the leading edge (5B) of the other wing (3B) for attacking the soil gradually.</p> |
