Fairlead with integrated chain stopper

Details Fairlead with integrated chain stopper Fairlead with integrated chain stopper

B - Operations, Transporting

63

B

B63B 21/24 (2006.01)

Patent

CA 2540305

The present invention is a fairlead for guiding and securing an anchor chain between an offshore structure and an anchor. The fairlead comprises a fairlead frame, a pivoting latch, and an actuator. The fairlead frame is pivotally mounted to the offshore structure and supports an axle for a chain sheave. The pivoting latch is mounted to pivot on the axle and comprises a tension link with a chain latch and a counterweight for urging the chain latch into engagement with the chain. The pivoting latch is configured to engage the chain only when the chain is traveling in the payout direction. The actuator controls the action of the counterweight.

La présente invention concerne un chaumard permettant de guider et de fixer une chaîne d'ancre entre une installation au large des côtes et une ancre. Le chaumard comprend un support de chaumard, un élément de blocage pivotant et un actionneur. Le support de chaumard est monté pivotant sur l'installation au large des côtes et porte un axe destiné à recevoir un réa. L'élément de blocage pivotant est monté afin de pivoter sur l'axe et comprend un maillon de tension ainsi qu'un élément de blocage de chaîne et un contrepoids destiné à contraindre l'élément de blocage de chaîne à venir en prise avec la chaîne. L'élément de blocage pivotant est conçu pour venir en prise avec la chaîne uniquement lorsque la chaîne se déplace dans le sens de déroulement. L'actionneur commande l'action du contrepoids.

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