| 摘要 |
A jib crane in which unexpected movement of a suspended load is prevented to sufficiently secure the safety of load handling work. The jib crane has a hoisting wire rope (22) for vertically moving a hook (34), an elevation wire rope (24) for elevating up and down a jib (14), and a conversion device (38) for fixing the foremost ends of the wire ropes (22, 24) to a rotation frame (58) of a rotation table. The conversion device (38) has a V-shaped link (62) rotatably supported by a bearing bracket (56) with the use of a support pin (60). The foremost ends of the wire ropes (22, 24) are connected to a pair of link arms (62a, 62b) of the V-shaped link (62). |
