Screen door frame member connection system

摘要

An improved screen door frame construction is provided in which at least one transverse door frame member is coupled to the screen door frame stiles by means of plastic coupling elements. The plastic coupling elements are inserted into the opposite ends of each detachable, transverse door frame member. Each coupling element includes a hook that passes across a free, interior wall of a channel formed at the facing, interior side of one of the door stiles. The tips of the coupling elements include barbs that engage in an interlocking fashion with bearing ledges formed on the inside surfaces of the free interior channel walls. The compression bead that is utilized to attach a screen to a door frame serves the further function of maintaining the hooks of the coupling elements in interlocking engagement with the channels of the door frame stiles. The use of the coupling elements of the invention avoids the necessity for prepunching the stiles with openings and forming dangerous, projecting metal fastening tabs on the ends of the transverse door frame members.