Patent ID: 7793450

Claim:
A display panel having an outer face, at least one elongate slot of re-entrant shape extending across the panel and having a mouth in the plane of the outer face, and an elongate insert of a resilient metal and having substantial rigidity in the lengthwise direction thereof, said insert being adapted to be received in the slot and having a base portion from one side of which extends an arcuate leg, a first rib upstanding from a free edge of the arcuate leg, a second rib also upstanding from the arcuate leg and extending parallel to said first rib, the second rib being closely spaced from but being disposed further from the free edge of the arcuate leg than said first rib whereby a distinct channel extending along the length of the insert is provided along the free edge of the arcuate leg, said channel being defined by said first and second ribs and being directed outwardly with respect to the curvature of the free edge region of the arcuate leg, and from the other side of the base portion there extends an angled leg having a substantially planar first part lying generally parallel to the part of the arcuate leg near the base portion and a substantially planar second part turned outwardly with respect to the first part, an outwardly-directed abutment being formed along the free edge region of the second part and extending along the length of the insert, the spacing between said channel and said abutment being slightly greater than the width of the mouth of the re-entrant slot and the insert being resiliently deformable whereby it may be entered into the slot with the base portion leading into a re-entrant part of the slot until the abutment engages the corner region between the outer face of the panel and one side of the slot, and the channel is engaged with the corner region between the outer face of the panel and the other side of the slot.