Frame for windows, doors, facade elements and such

摘要

A corner joint for a door or window frame has the frame sections meeting on a miter joint and with at least one injection hole in each section for sealant/adhesive. The sealant ducts for the adjacent sections meet in a valve chamber (5) fitted with a valve element (7). Introducing sealant into one hole moves the valve to block off the duct to the injection hole in the adjacent section thus preventing unwanted spillage of sealant. The system can be extended to cover a number of sealant holes meeting in the valve chamber. The valve element can be a loose unit or a flap hinged on the chamber wall.