Patent ID: 7137481

Claim:
Fall arrest device used with a fixed safety rope and comprising a body equipped with a securing system arranged to occupy either an active locking position in case of a fall or an inactive unlocking position enabling the user to progress along the rope in the ascending direction, or in the opposite direction when performing a controlled descent, said securing system comprising: a support arm articulated on a first spindle of the body, a roller in the form of a cylindrical wheel mounted rotating free on a second spindle securedly attached to the support arm, and a centrifugal coupling means arranged between a drive member of the roller and the support arm so as to occupy a disengaged position or an engaged position, wherein the centrifugal coupling means comprise at least one flyweight movable along a ramp of the drive member against a compression spring, and a connecting interface engaged inside a cylindrical rim of the support arm to transmit the elastic force of the spring to the flyweight.