| 摘要 |
PCT No. PCT/SE94/00764 Sec. 371 Date Apr. 1, 1996 Sec. 102(e) Date Apr. 1, 1996 PCT Filed Aug. 23, 1994 PCT Pub. No. WO95/05992 PCT Pub. Date Mar. 2, 1995A device in a lifting crane for releasing and recovering a load provided with a recovery cable comprises a lifting yoke having an aperture extending in a lifting direction of the lifting yoke, the recovery cable being slidable through the aperture; two locking members pivotally journalled in the lifting yoke about tangential axes of rotation, the locking members jointly capable of recovering and supporting a load while in a first position and, upon pivoting to a second position, releasing a supported load; and two regulating levers, one for each locking member, each regulating lever having a first end journalled on the axes of rotation of a respective locking member and a second end attached to a single biasing member, such as a spring interconnecting the pair of regulating levers, the pair of regulating levers, in combination with the spring, having an open position which forces the locking members to the second position for releasing a load and a closed position which, in combination with the spring, forces the locking members to the first position for recovering and supporting a load.
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