Locking mechanism and drive device for a fire protection door and thus provided fire protection gate

摘要

A fire door actuator (14) (10), comprising: a latch mechanism (24) having a cam (52) for moving a fireguard gate (18) to a closed position, biasing means for biasing the cam (52) to the closed position; A locking device, which locks the driver (52) in an open position (13) against the bias of the biasing device and for closing the fire door (10) is releasable in case of fire, and a Torantriebsnotentriegelungsbetätigungseinrichtung (50), and a gate drive (26) for automatically driving the Fire protection door leaf (18) with entrained by the locking device driver (52), wherein the door drive (26) to be connected to the Feuerschutztorflügel (18) Torantriebsabtriebselement (36), a motor drive unit (32) and a Torantriebsnotentriegelung (40) for decoupling the Torantriebsabtriebselements of the door drive (26) from the motor drive unit (32) a The door drive emergency release actuator (50) is connected to the door drive emergency release (40) for actuating the same to actuate the door drive emergency release (40) of the door operator (26) in the event of fire and / or release of the locking device.