1. The seal (72) facing the floor for forward opening (66) in the floor (28) shearing machine plant (20) through which the arm (62A, 62B) of the knife for reciprocating from side to side to bring into action a cutting apparatus (30) of the machine (20) as the machine (20) is moved forward to perform an operation of cutting plant, characterized in that the fixed outer circumferential sealing element (76) which is coupled together with a peripheral edge (82) the floor ( 28) around the opening (66) forms a substantially Sealing Connector Noe state around it, the inner peripheral sealing member (74) is limited by the outer peripheral sealing member (76), wherein the inner peripheral sealing member (74) engages with an external peripheral surface (76) of the lever (62A, 62B) of the knife, forming a barrier for Incoming loose material around it and moves from side to side with the lever (62A, 62B) of the knife and the intermediate covering element (110) is configured to provide forward-facing fence or barrier to the passage of loose mat Methods and material between the seal elements (74, 76), providing at the same time the possibility of movement from side to side of the inner peripheral sealing member (74) with a lever (62A, 62B) of the knife relative to the outer peripheral sealing member (76) during operation of plant cutting. 2. Seal (72) floor according to claim 1, wherein the inner peripheral sealing member (74) is bounded by a passage (88) of the intermediate covering element (80) and located in nem.3. Seal (72) Floor according to claim 2, wherein the inner peripheral seal1. Уплотнение (72) пола для обращенного вперед отверстия (66) в полу (28) срезающей растения машины (20), через которое проходит рычаг (62A, 62B) ножа для возвратно-поступательного перемещения из стороны в сторону с целью приведения в действие режущего аппарата (30) машины (20) по мере того, как машина (20) перемещается вперед для выполнения операции срезания растений,отличающееся тем, что неподви
