Unlock mechanism for a rotary door operator

B - Operations – Transporting – 60 – J

Patent

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Details

B60J 5/06 (2006.01) B61D 19/02 (2006.01) E05F 15/04 (2006.01)

Patent

CA 2548852

An unlock mechanism for a rotary door operator of a transit vehicle includes a pivotally disposed unlock member adapted for rotating a lock member into an unlock position and activating a valve for discharging the fluid pressure from the drive cylinder to enable manual opening of the door. A spring is provided for biasing the unlock member to a non-activated position. The unlock member may be activated either with a cable or a lever handle. A lock sensing switch provides a feedback on the lock condition to the transit vehicle control system. Additionally, a guiding bracket is provided for securing the cable in proximity of the unlock member.

La présente invention concerne un mécanisme de déverrouillage destiné à un opérateur de porte rotatif d'un véhicule de transport en commun, ledit mécanisme comprenant un élément de déverrouillage monté de façon à pouvoir pivoter et conçu pour faire tourner un élément de verrouillage dans une position de déverrouillage et activer un clapet pour qu'il évacue la pression fluidique du cylindre moteur pour permettre l'ouverture manuelle de la porte. Un ressort sert à précontraindre l'élément de déverrouillage vers une position non activée. L'élément de déverrouillage peut être activé soit par un câble, soit par un levier. Un commutateur de détection de verrouillage fournit des informations de retour relatives à l'état de verrouillage, au système de commande de véhicule de transport en commun. De plus, un support de guidage sert à maintenir le câble à proximité de l'élément de déverrouillage.

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