Retractable safety barriers and methods of operating same

Details Retractable safety barriers and methods of operating same Retractable safety barriers and methods of operating same

E - Fixed Constructions

06

B

E06B 9/08 (2006.01) E01F 13/02 (2006.01)

Patent

CA 2691487

A rétractable barrier System includes an example gear assembly that can be manipulated for rapidly deploying a flexible barrier, exerting high torque for the initial tightening of the barrier, maintaining high static tension in barrier when in use, and/or rapidly retracting barrier for storage. In some examples, the gear assembly is a worm drive with a worm that can be selectively disengaged from a worm gear. The barrier system (456) includes a take-up member (458) with a drum (460) that in addition to rotating about a first axis (462) can also be rotated about a second axis (464). Second axis (464) allows barrier (402) to be deliberately laid over on a preferred side as the barrier is being extended or retracted. The preferred side might be such that the side facing down, and perhaps getting dirty from the floor, is the side of the barrier (402) that is lest visible when barrier (402) is fully extended and upright.

L'invention concerne un système de barrière rétractable qui comprend un ensemble engrenage donné à titre d'exemple qui peut être manipulé pour déployer rapidement une barrière flexible, exercer un couple élevé pour le renforcement initial de la barrière, maintenir une tension statique élevée sur la barrière lorsqu'elle est en service et/ou rétracter rapidement la barrière pour stockage. Dans certains exemples, l'ensemble engrange est un entraînement par vis sans fin qui peut être sélectivement désengrené d'une roue à vis sans fin. D'autres caractéristiques optionnelles du système de barrière comprennent des configurations main droite/main gauche sélectives, un commutateur électrique qui peut être ajouté pour indiquer si le système barrière est en service, un couplage intermédiaire qui relie les extrémités distales de deux barrières pour créer un système de barrière extra long et des montants amovibles montés sur un véhicule pour certaines applications de dock de chargement

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