Device for preventing the jamming of a disc mower by, or for breaking up, a layer of soil and plant matter

摘要

Disc mowers having a drive casing to accommodate the drive means for disc-shaped rotary cutters with knives attached thereto tend to permit a layer of soil and plant matter to build up in the overlap region of the knives between adjacent stone guards. This tendency is prevented according to the invention by a scraper and deflection element disposed in the overlap region at the front face of the drive casing below the rotary knives and between the rotary cutter discs in the overlap region of the knives. The scraper and deflection element may be adapted to cooperate with mechanically, hydraulically or pneumatically powered cleaning elements to prevent and to remove solid build-up in the overlap region.