Frame for security door having a screen riveted in an open channel and ends of rivets received in a closed channel

摘要

A security screen mounted in a closure, particularly for use as a security door, and an extrusion for use in the closure are disclosed. The closure has a metal frame formed from the extrusion (16), with a security screen mounted within the frame. The extrusion has an open channel (24) formed from first and second parallel spaced walls (26, 28), and a closed channel (30) located on one side of the open channel. The screen is mounted in the open channel, and rivets (56) are passed through holes in the first and second walls and in the periphery of the screen. One end of the rivets is received in the closed channel. The closed and open channels are integrally formed.