OPERATOR'S CRANE Russian patent published in 1995 - IPC

FIELD: materials handling and transport engineering. SUBSTANCE: operator's crane has supporting column 1 which carries hinge-connected boom 2 made in form of parallelogram. Mounted on cone end of boom is operator's platform 4 and on other end, equalizing device 5 and boom hoisting and lower device 6 coupled with crane boom through friction unit 7 for angular turning relative to support surface of operator's platform. Platform 8 for picture monitor is coupled with boom parallelogram through telescopic rod 10 which changes angle of tilting of picture monitor relative to longitudinal axis of boom. EFFECT: enlarged operating capabilities. 5 dwg