Fixing device for holding open a self-closing door has trigger mechanism on base body connected to smoke sensor via electronic circuit and that releases at least one connecting element in event of smoke and thereby causes door to close

摘要

The device has a housing shaped base body (2) joined to the door and to a fixed reference point with first and second connecting elements (3,4) respectively, a smoke sensor (6) on the base body and a trigger mechanism (8) on the base body that is connected to the smoke sensor via an electronic circuit (7) and that releases at least one of the connecting elements in the event of smoke and thereby causes the door to close.