Safety device for ascending and descending climber acting along e.g. cliff, by rope, has cage and roller positioned vertically inside external structure such that roller is located under cage, so that connection is subjected to constraints

摘要

The device has a cage (CO) comprising a free pulley (PG) oscillating around a central axis and an auxiliary roller (RA) that is fixed or movable in rotation around the central axis. The cage and the roller are positioned vertically inside an external structure (SE) such that the roller is located under the cage with determined spacing between centers and intervals, so that a flexible connection (LF) that circulates in the device is subjected to constraints, torsions and distortions to cause deterioration or premature wear of the connection.