Door closer for leaf of door in room, has locking device released by smoke detecting device, which includes smoke detector that is partially arranged in frame of door, where smoke box of detector is arranged in frame

The closer (1) has a lever arm (2) and a locking device triggered by a smoke detecting device (3). The smoke detecting device includes a smoke detector (4) that is partially arranged in a frame of a door. The smoke detector has a smoke box (11) and an evaluation electronic unit (12), where the smoke box is arranged in the frame. The smoke detecting device includes a power supply unit (8) for supplying the smoke detector. The power supply unit and the electronic unit are integrated in an in-wall power socket (9) and the frame. Es wird ein Türschließer für einen Flügel einer Tür beschrieben, mit einem Hebelarm, mit einer Rauchmeldeeinrichtung, welche einen Rauchmelder und eine durch den Rauchmelder auslösbare Feststellvorrichtung aufweist. Der Rauchmelder ist mindenstens teilweise in dem Rahmen der Tür anordenbar.