SWING JIB CRANE Russian patent published in 1997 - IPC

FIELD: materials handling facilities. SUBSTANCE: swing jib crane has column installed on foundation sleeve by means of intermediate support with bearing unit, swing gear coupled with lower portion of column and foundation sleeve and connected with upper portion of column by means of hinge member, jib and jib lock in form of crank hinge-mounted by one of eccentric shafts in column bracket. Other eccentric shaft is coupled with jib by means of tie-rod one end of which is hinge- connected with jib by means of axle, and other end is connected with shaft of crank, the latter being installed in lower portion of column. Cylindrical joints are used to connect crank and tie-rod with jib and bracket. EFFECT: enlarged operating capabilities. 2 cl, 2 dwg