UA89649C2 - Method for mowing grasses and smahlii's mower - Google Patents

Abstract

In a method of mowing grasses a grass stand is divided into separate parts on the operating width of a mower by means of penetrating of sharpened passive dividers, fixed on the bar of the mower, the side edges of which converge between each other in the moving direction of the mower, while it is working, into the grass stand. Simultaneously with this the plant stems in each isolated part thereof are deflected by the side edges of two adjacent dividers up to arranging the near-root parts of the plant stems on one side from the corresponding cutoff disk and of the aboveground parts of said stems on the other side from said cutoff disk while it is rotating during the operation of the mower, and said stems are overcut by the cutting edge of the cutoff disk while it is rotating and penetrating into the grass stand. Cutting the plant stems by the cutting edges of the cutoff disks is carried out in the space laying under the plane, which passes above the shaft of the mower, tangentially thereto, in parallel to the surface of the field mown, and in front of the second plane which passes behind the shaft tangentially thereto and is perpendicular to the surface of the field. The mower comprises a bar transversal to the moving direction of the mower with sharpened dividers fixed thereon which form the lower row and the upper one, the shaft mounted along the bar with transversal cutoff disks with the cutting edges, fixed thereon, which are in the area of overlapping the projection of the side edges of the dividers, and shear stop members. Horizontal projections of the side edges of the two adjacent dividers from different rows converge between each other up to the overlapping of each other. Each of the shear stop member is made as a U-like plate fixed by middle part thereof to the correspondent divider of the upper row, and free ends of said stop members with the shear edges are arranged lower than the horizontal plane which passes tangentially to the shaft and in front of the vertical plane, that passes behind the shaft tangentially thereto in such a manner that the shear edges of each of the shear stop members are arranged at angle to the both of these planes and embrace by themselves the corresponding cutoff disks in the area of the undercutting edges, and the disks themselves are arranged in slots between the free end of the corresponding shear stop member and the divider.