Security screen

A security screen for securing an opening in a structure, the security screen comprising a frame defining an open portion and a sheet element received across the open portion of the frame, a frame member comprises a leg which extends inwardly from an inner edge away from the open portion, the sheet element comprises a planar portion and an edge portion which extends around at least part of the perimeter of the planar portion, at least part of the edge portion provides a lip which extends from a first side of the edge portion such that it is oriented at an acute angle to the planar portion of the sheet element, the edge portion is received in a cavity in the frame whereby a second side of the edge portion cooperates with a locking member to lock the edge portion of the sheet element in the cavity wherein the cavity enables the lip to maintain an orientation which is at an acute angle to the planar portion.

A security screen, the security screen comprising a frame defining an open portion and a sheet element secured across the open portion of the frame, the frame comprises a leg which extends inwardly from an inner edge of the frame away from the open portion, the sheet element comprises an edge portion secured to the frame, the edge portion provides a lip spaced from the leg and which extends away from a first side of the edge portion such that it is oriented at an acute angle to the sheet element, the edge portion is received in a cavity in the frame, the cavity comprises a channel and a void, wherein a second side of the edge portion cooperates with a locking member and the channel to lock the edge portion of the sheet element relative to the frame wherein the void retains the lip in an orientation which is at an acute angle to the sheet element.

A security screen for securing an opening, the security screen comprising a frame defining an open portion and a sheet element received across the open portion of the frame, the frame comprises a leg which extends inwardly from an inner edge of the frame away from the open portion, the sheet element comprises a planar portion and an edge portion which extends around the perimeter of the planar portion, the edge portion provides a lip spaced from the leg and which is at an acute angle to the planar portion, the edge portion of the sheet element is received in a cavity in the frame and clampingly secured between the leg and a locking member, wherein a void of the cavity receives the lip such that it maintains the lip at an acute angle to the planar portion regardless of an impact thereon.

A security screen fastening system for securing an edge portion of a sheet element, such as a mesh sheet, to a frame portion of the security screen, the frame portion comprises a leg which extends inwardly from an inner edge of the frame portion away from an open portion across which spans the sheet element, the edge portion provides a lip which is spaced from the leg and is oriented at an acute angle to the sheet element, the edge portion is received in a cavity in the frame portion, the cavity comprises a channel and a void, the edge portion cooperates with the leg and a locking member to lock the edge portion of the sheet element in the cavity wherein the void receives and retains the lip in an orientation which is at an acute angle to the sheet element.