| 摘要 |
A releasable coupling device, especially for use in lifting devices, wherein one or more couplings (3) are arranged in the lifting equipment (2) or between the lifting equipment (2) and the load (1), and wherein the coupling is locked or opened directly or indirectly through a positional or rotational change of a locking element (23), the positional or rotational change of the locking element (23) between the locked and the unlocked position being brought about directly or indirectly by the buoyancy of a floating element (36) or other external force applied. The structural change of one or more metals may be used directly or indirectly to change the position of a release-blocking/locking element (39, 45) between a locked and an unlocked position, this structural change allowing imitation through cableless remote control by the use of auxiliary equipment of a known type. memory metal(s) can be used in order to change the position of the release-blocking/locking element (39, 45) between a locked and an unlocked position in a coupling as described above.
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