Corner connection for frames of solar collectors uses corner angles of plastic to anchor frame corners

摘要

The connection system is for frame parts (20) of solar collectors, pref. of extruded profiles, and consists of corner angles and a retainer (16) in the frame (19). A corner angle has pref. a groove, and a part of a frame profile web (17) is pressed into the groove to act as part of retainer. Part of this web is separated from the other web (15), and this is for fastening the angle in the frame. Frame parts and/or corner angles are of plastic.