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