Patent ID: 8056676

Claim:
A fall-prevention device designed to interact with a rigid belay support, the fall-prevention device comprising a body movably mounted the belay support and on which, mounted to rotate around a central longitudinal axis of a shaft, there is a wheel to press and roll on the belay support, and a locking device to move between a locked position in which the body of the fall-prevention device is immobilized on the belay support and an unlocked position in which the body of the fall-prevention device is movable along the belay support, the wheel comprising at least a first centrifugal engagement device to move between a disengaged position in which the locking device is in the unlocked position and does not interact with the first engagement device and an engaged position in which the first engagement device interacts with the locking device and moves the locking device into the locked position, wherein the locking device comprises at least a first locking member mounted to rotate on the body around the central longitudinal axis of the shaft of the wheel independently from the wheel, the first locking member comprising a chock arranged to be inserted between the belay support and the wheel when the first engagement device is in the engaged position to immobilize the fall-prevention device on the belay support.