Energy absorbing lifeline systems

A - Human Necessities – 62 – B

Patent

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Details

A62B 35/04 (2006.01)

Patent

CA 2711958

A lifeline system includes a lifeline and a hub around which the lifeline is coiled. The hub deforms to absorb energy at a predetermined level of force exerted thereon by the lifeline. For example, the hub can be deformable to absorb energy so that a peak fall arrest force in a drop test of the lifeline system with a 220 pound mass attached to the life- line over a distance of up to 6.56 feet is not more than 1900 pounds. In several embodiments, the peak fall arrest force is no more than 1500 pounds or no more than 1349 pounds.

L'invention concerne un système de filin de sécurité comprenant un filin de sécurité et un moyeu autour duquel le filin de sécurité est enroulé. Le moyeu se déforme pour absorber de l'énergie à un niveau prédéterminé de force exercée sur celui-ci par le filin de sécurité. Par exemple, le moyeu peut se déformer pour absorber l'énergie de sorte qu'une force antichute de pointe dans une épreuve de chute d'un système de filin de sécurité avec une masse de 220 livres attachée au filin de sécurité sur une distance pouvant atteindre 6,56 pieds ne dépasse pas 1900 livres. Dans plusieurs modes de réalisation, la force antichute de pointe ne fait pas plus de 1500 livres ou ne fait pas plus de 1349 livres.

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