Delayed egress panic device with internal deadlocking bolt mechanism

摘要

An improved door access bar for installation onto a door through which access is controlled by an electrically operated door access system is disclosed in which the door access bar has an electromechanically operable door locking mechanism which is used to selectively lock and unlock the door to thereby control access or egress through the door. The door access locking bar of the present invention incorporates an interlock mechanism to prevent the bolt from being forced into a retracted position by jimmying the locking mechanism to unlock the door. The locking mechanism of the present invention prevents the door from being opened until the electromechanical locking mechanism is operated to do so. The door access locking bar of the present invention operates in a fail-safe manner so that in the event of a power failure it will automatically be in an unlocked position.