| 摘要 |
This invention relates to a crane vessel (1,100) comprising a revolving hoist crane (20,120) and a method of using such a vessel. The hoist crane comprises a jib (24,124), main hoisting means and auxiliary hoisting means for raising and lowering a load. The main hoisting means comprise a main hoisting tackle (3,130) with a main hoist upper block (38,138) connected to the jib of the hoist crane and a main hoist lower block (39,139). The vessel comprises a jib rest (10,110) for supporting the jib when the crane is not in operation. According to the invention the main hoist lower block is assembled from a sheave block (163) comprising the sheaves (132) of the main hoist lower block and a load attachment assembly (133) comprising the lowering weight (137) and the main load attachment device (34,134). The crane vessel is provided with a load attachment assembly storage device (10,150) for storage of the disassembled load attachment assembly and displacement means (167) capable of engaging with and displacing the load attachment assembly while it is assembled to the sheave block and when the jib is supported by the jib rest.
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