Smoke or fire control closure element has segments rigidly joined by connecting elements, with middle arms, and pockets.

摘要

The smoke or fire control closure piece consists of at least two segments (2a,2b). The segments are rigidly joined together by connecting elements (13a,13b). The connecting elements are transferred from an unlocking position by moving parallel with the lengthwise edges of the end sides of the segments, into a locking position. The end sides of the segments of the closure element (1) each have a middle arm (7a,7b) which abut to form pockets containing the connecting elements.