GROUND ENGAGING TOOL ASSEMBLY Russian patent published in 2018 - IPC E02F9/28 

FIELD: excavation and moving of soil.

SUBSTANCE: group of inventions relates to the mining industry, in particular to ground engaging tools. Coupler comprises a tip mounting portion and an implement mounting portion. Implement mounting portion defines an implement pocket with a central wall having an abutment surface and a coupler side wall having a distal end adjacent the central wall and a proximal end. Side wall has a side interior surface facing the implement pocket and adjacent the abutment surface. Side interior surface defines a recessed portion adjacent the abutment surface. Recessed portion is offset laterally outward of the side interior surface. Side wall has a base portion at the proximal end with a base exterior surface and an interlock portion at a distal end of the coupler side wall that has an interlock exterior recess surface, the base portion width greater than the interlock portion width. Recessed portion extends between the abutment surface and a transition surface, spanning the interlock portion.

EFFECT: technical result is an increase in the durability of ground engaging tools.

11 cl, 34 dwg