| 摘要 |
Fire and smoke barriers are deployed automatically on detection of fire of smoke. This can result in evacuees being on the wrong side of a deployed barrier and needing to evacuate through the barrier. The barrier includes a curtain rolled on a roller in a head box, a pair of side guides and a bottom bar. At least one of the side guides being partially movable, temporarily opening the barrier to allow the escape of an evacuee. Both side guides can be movable, allowing the barrier to swing from its top. Alternatively one side guide can be hinged to a wall with the other being able to move away from its wall, the head box joining the tops of the side guides. The barrier opens like a door to allow escape of an evacuee. The door having a closure spring to ensure it returns to its closed position. |
