Disconnectable self-locking descending device

摘要

The mechanism consists of a pulley (16) in the shape of a cam, equipped with a drive peg (210) which cooperates with a mechanism (202) incorporating a transmission arm (208). The arm can move between an active and an inactive position. In the active position it engages with the peg to establish a one-way mechanical link between the cam pulley and a handle (24) when the latter is in an intermediate released position on descent. In the inactive position the mechanical link breaks when the handle passes an intermediate position, causing the cam to return automatically to its locked state under the effect of the cable's tension.