Patent ID: 8387751
Filing Date: 2013-03-05
Classification: A62B

Abstract:
1. A follow-up fall prevention device used with a cord designed to secure a person, the device comprising: a body equipped with a blocking system having a position of blocking of the cord during a running of the cord at a first speed in the device, the first speed being non-zero, or a position of release allowing a running of the cord at a second speed in the device, the second speed being non-zero, the second speed being less than the first speed, the second speed corresponding to a progression of the person in a direction of a climb, or in an opposite direction during a controlled descent; and a connector configured to connect the body of the device to a safety harness, the blocking system comprising: on a side of the cord, a cord bearing surface; a free weight; on an opposite side of the cord, a cavity containing in a lower part the free weight and forming in an upper part a bearing surface inclined toward the cord, the free weight being adapted, during running of the cord at the first speed, to be displaced toward the bearing surface until blocking of the cord between the free weight and the bearing surface, wherein the blocking system further includes a pressure mechanism configured, during running of the cord at the second speed, to be between the free weight and the bearing surface and to bias the free weight toward the cord and away from the bearing surface, thereby enabling the free weight to be always in contact with the cord and remain in the lower part of the cavity without touching the bearing surface, whatever the inclination of the cord and whatever the position of the device, the pressure mechanism including a spring.