EXCAVATOR BUCKET Russian patent published in 2002 - IPC

FIELD: earth-moving machinery; power shovels with forced emptying of bucket. SUBSTANCE: bucket has rear and side walls hinge connected with dipper stick, bottom and movable clean-up frame hinge connected with side walls and bucket turning drive made in form of lever and tie-rods. Side walls of bucket and movable clean-up frame are connected with bucket dipper stick by means of one and the same hinge joint, and clean-up frame is furnished with turning drive made in form of hydraulic cylinder whose rod is hinge connected with clean-up frame. Housing is hinge-coupled with bucket turning drive lever, with longitudinal axes of hydraulic cylinder and tie- rods being located in one plane, and rear wall is provided with slot to pass clean-up frame drive hydraulic cylinder at turning of clean-up frame. EFFECT: enlarged operating capabilities, increased capacity. 3 dwg