BULLDOZER WORKING EQUIPMENT Russian patent published in 1994 - IPC

FIELD: earth-moving machines. SUBSTANCE: working equipment has pushing bars, blade with nose hinged to it, and nose control hydraulic cylinders. Installed behind the blade is bucket with bottom and side walls. Secured to bucket rear part are spring-loaded supporting wheels. Bucket bottom is comprised of fixed extreme sections and movable middle one. Middle section consists of two parts. One ends of these parts are interconnected between each other and with rods of additional control cylinders. And the other ends of movable parts have supporting rollers moving along guides. EFFECT: higher efficiency. 2 dwg