| 摘要 |
A hauling winch (10) comprises a pair of cooperating hauling drums (12, 13) and a wire (14), which is stored on a storage drum and which is tension-loaded via the hauling drums (12, 13). Each of the hauling drums (12, 13) is furnished with a number of axially separated grooves (16-20; 21-24). The wire (14) passes continuou sly in several revolutions over the hauling drums (12, 13) via respective axially succeeding grooves (16-20; 21-24) in each of the hauling drums. The grooves in each of the hauling drums, in axially succeeding portions of the hauling drums (12, 13), are furnished with mutually differing forms of groove, which provide different friction factors. Consequently there can be transferred different forces between groove and wire portion in said axially succeeeding portions, according to need.
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