Westinghouse Air Brake Technologies Corporation

Steven P Heffner

Michael Manseau

A door lock for at least one door panel mounted on a door operator attached to a transit vehicle. Such door operator includes a door drive. The door lock having a lock shaft mounted on the operator of such door panel. The lock shaft is oriented in a direction disposed substantially parallel to an opening direction and a closing direction of such at least one door panel. At least one primary lock device connected to such lock shaft, the primary lock device engageable with such door drive for preventing motion thereof. At least one secondary lock device connected to such lock shaft. The secondary lock device engageable with at least one of such door panel and a hanger for such door panel for preventing movement thereof. At least one lock cam mounted on the hanger for engaging such lock shaft for rotating the lock shaft from an unlocking position to a locking position when such at least one door panel is moved in such door closing direction to a closed position of such at least one door panel. An unlocking actuator is attachable to such door operator. The unlocking actuator having a moveable portion connected to the lock shaft to rotate lock shaft to such unlocking position for unlocking such at least one door panel.

Transit vehicle door operator and lock

Door operator for opening, closing and locking at least one door panel on a transit vehicle. The door operator has at least one base portion for mounting on the vehicle and at least one fixed support member attached to the base portion. The door operator has door hangers for attachment of the door panel to the fixed support member and moveable door support members attached to the door hangers. The moveable door support members engage the fixed support member to support the door panel while permitting opening and closing motions of the panel. The operator includes at least one door drive having a base mounted portion and a hanger mounted portion engaging the base mounted portion to be moved thereby to move the panel in opening and closing directions. The operator has a lock for securing the door panel in a closed position, the lock having a lock shaft which includes at least one primary lock device for preventing motion of the base mounted door drive portion and at least one secondary lock device engaging one of the door hangers. The lock includes a lock shaft engaging mechanism which rotates the lock shaft to a locking position when the door panel is closed. The lock also has an unlocking actuator for unlocking the door panel, the unlocking actuator having a moveable portion connected to the lock shaft to rotate the lock shaft to the unlocking position.

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LaGrange, IL, United States of America

Steven P Heffner