| 摘要 |
PROBLEM TO BE SOLVED: To solve the following problems: a wire rope cannot be wound around drum grooves at normal positions depending on angles at which the wire rope is pulled out because of possibility of breakage to a cutting tool or a drum member at notched portions of the drum grooves in cutting the drum grooves. SOLUTION: A terminal 6 of the wire rope 2 is accommodated inside the drum 1, and a wire rope terminal insertion hole 3 of the drum 1 is positioned on the left side of a drum groove cut start position end part, and disposed on an outer side of the drum grooves in a hoist in which the wire rope 2 is wound around the drum grooves 8 to 11. A wire rope terminal fixed position 4 is made to meet the cut start position of the drum grooves 8 to 11. Therefore, the drum grooves 8 to 11 and the wire rope terminal insertion hole 3 are not overlapped, thus improving machinability of the drum grooves 8 to 11, and preventing a groove skip of the wire rope 2 (effective utilization of the drum grooves 8 to 11). COPYRIGHT: (C)2004,JPO
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