JIB CRANE BALANCING DEVICE USING SLANT OF JIB FOR ELIMINATING STRESS ON CONNECTION PART OF MAST OR JIB

摘要

PURPOSE: A jib crane balancing device using the slant of a jib is provided to improve safety and durability by removing the strain stress applied to a connection part of a mast or a jib. CONSTITUTION: A jib crane balancing device using the slant of a jib comprises a guide rail(10) integrally formed to a bottom of a weight jib and inclined downward to a mast(1) in a predetermined angle; a balance weight(20) installed on the guide rail to slide and composed of weight goods installed to a trolley having a roller; and a pulling rope(40) of which both ends are fixed to the balance weight and an auxiliary jib(6) and which is installed to a plurality of guide rollers(30,30') fixed to an end part and an upper surface of the weight jib.