Round headed shuttered box - with vaulted soffit and two-dimensional plaster outlet edge in functional unit

摘要

The functional unit involved has a lowerable shutter and hermetic closure of the outlet aperture. One of the rounded front sides (1, 10) has an arched soffit (2) to which it is connected by means of a bendable connecting profile. The base of the soffit forms a free-standing edge (4) back to the window invovled and this edge has a plaster anchoring nose formation (5). The bent soffit base is formed in a rib shaped profiling (200) which supports the plaster (202) and which has rear incisions. The soffit connecting profile with its base (7) and two upwardly facing vertical fillets (6, 60) form a groove which encompasses the outer front side (1) and one of the fillets has an anchoring nose formation (61) which engages in the outer front side. USE - As a round-headed shutter box within a building an arched, plasterable soffit.