Smoke or Fire Barrier

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.

主权项

1. A smoke or fire barrier for a pedestrian way, having two sides and a head, the barrier comprising:
a curtain support normally arranged at the head of the pedestrian way; a curtain normally supported by the curtain support for deployment down between the sides of the pedestrian way in event of smoke or fire; and at least one movable side guide for the curtain, the guide normally extending at its side of the pedestrian way and being at least partially movable away from the side for at least partial, temporary opening of the barrier to allow escape of an evacuee needing to use the pedestrian way after deployment of the barrier.