EDGE CASING FOR WORKING BODY, AND METHOD FOR MAINTENANCE OF WORKING BODY WITH CASING Russian patent published in 2022 - IPC E02F9/28 

FIELD: mechanical engineering.

SUBSTANCE: group of inventions relates to working body assemblies having a system for protection of an edge of a working body. An edge casing for a working body contains a lower arm containing a lower end part with a lower end and an inner surface of the lower end passing forward from the lower end, a wedge-shaped part containing a cutter protruding forward and an inner wedge surface, an upper arm, and a hole. At the same time, the upper arm is attached to the lower arm by means of the wedge-shaped part. The upper arm contains an upper end part and a connecting part passing between the upper end part and the wedge-shaped part, while the upper end part has an upper end and an inner surface of the upper end passing forward from the upper end, while the connecting part has an inner surface of the connecting part. The hole is partially formed by the inner surface of the lower end, the inner surface of the upper end, the inner surface of the wedge, and the inner surface of the connecting part for installation of the edge casing on a front edge of the working body. Moreover, the inner surface of the upper end is tilted to the inner surface of the connecting part at the first angle. The inner surface of the connecting part is tilted to the inner surface of the lower end at the second angle. The inner surface of the upper end is tilted to the inner surface of the lower end at the third angle. At the same time, the first angle is greater than the second angle, the second angle is greater than the third angle, and the third angle is opened in a backward direction so that the inner surface of the upper end is tilted down to the cutter protruding forward to form a narrowing.

EFFECT: simplification of disconnection of an edge casing from a working body.

10 cl, 13 dwg