| 摘要 |
PCT No. PCT/FR87/00308 Sec. 371 Date Feb. 10, 1989 Sec. 102(e) Date Feb. 10, 1989 PCT Filed Aug. 6, 1987 PCT Pub. No. WO88/01129 PCT Pub. Date Feb. 25, 1988.A plow having symmetrical mold-boards and bodies, the plow comprising a hitch 1 connected in particular by means of a pivot 3 and to a main frame 4 which is provided with a pivot 18 receiving a hydraulic actuator 17 whose action causes a beam 8 to pivot about its axis 7 together with body carrier elements 10 provided with mold-boards 11, characterized by a symmetrical moldboard 11 having a concave working surface which is horizontally hollow 46 and vertically hollow 47, with each of its side ends taken in a front position tapering upwardly rearwardly, by a single deflector 45 for both working directions in the form of a sector of a melon, by a strut 10 comprising a safety system including two elements 36 and 78 capable of moving longitudinally relative to each other, and by a pivoting rear rudder blade.
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