| 摘要 |
A gripping device for releasably gripping a rope-like member (20) comprises a pair of rope-engaging members (16,17) defining a pair of opposite, mutually spaced rope engaging surfaces defining a rope passageway therebetween. The rope engaging surfaces are mounted in a frame (10) so as to be moveable in relation to each other such that a force applied to the rope engaging surfaces (18,19) and acting in one direction of the rope passageway will tend to move the rope engaging members (16,17) closer to each other towards a locking position, while a force applied to the rope engaging surfaces (18,19) and acting in the opposite direction of the rope passageway will tend to increase the spacing of the rope engaging surfaces and to move the rope engaging members towards a releasing position. At least one (16) of the rope engaging members (16,17) is connected to an operating handle (31) by means of a lost motion connection (34,35). When the operating handle is moved from an inactive position to an active position the rope engaging members (16,17) are moved to their releasing position. A releasable retaining member (42) is connected to said at least one rope engaging member (16) and is adapted to retain the rope engaging member (16) in relation to the frame (10) in said releasing position. The operating handle (31) may then be moved back into its inactive position, while the rope engaging members are retained in their releasing position. When it is desired to lock or grip the rope (20) the retaining means (42) may be released. |
