Crest ring for a domelight

摘要

The side walls for the crest ring of a domelight are each assembled from two extruded plastics profiles, especially PVC profiles, which are then mitred and assembled to form the box-shaped frame of the crest ring. Twice the crest height can thus be achieved without a significant increase in the mould costs. The plastics profiles for the lower part of the side wall are expediently designed in one piece with the associated parts of the surrounding fastening flange of the crest ring, that is to say produced in a joint extrusion process.