UPPER COVER FOR PROTECTION OF EDGE OF BASE OF EXCAVATING MACHINE WORKING TOOL (VERSIONS) Russian patent published in 2024 - IPC E02F9/28 

FIELD: units and parts of machines.

SUBSTANCE: group of inventions relates to fastening mechanisms used in assembled working tools. Upper cover for protection of the edge of the working tool base of the excavating machine includes a rear fastening part, a front inclined part, an upper pin angular surface and a lower socket angular surface. Rear fastening part forms a first cavity for mounting fasteners, a vertical direction of the assembly, a lateral direction perpendicular to the vertical direction of the assembly, and a material feed direction perpendicular to the assembly vertical direction and the lateral direction, and includes a trailing edge located along the material feed direction. Front inclined part extends forward from rear fastening part along direction of material supply and vertically downwards, forming front wear edge. Upper pin angular surface extends from trailing edge to front wear edge. Lower socket angular surface extends from trailing edge to front wear edge. First cavity for installation of fasteners is located along the direction of material supply between the front inclined part and the trailing edge. And the upper pin angular surface forms the first groove for material supply, which passes along the direction of material supply and includes the first inclined surface for supply. Wherein first material feed groove is arranged adjacently along lateral direction and material feed direction with first cavity for mounting fasteners.

EFFECT: protection of working tool base edge.

10 cl, 6 dwg