Safety screen with a guard assembly having three flanged mounting members

A guard assembly for a framed opening in a structure comprising:

• a means for mounting a grid work member to said framed opening, said mounting means further comprising:
• downwardly depending first flanges, said first flanges having attachment openings;
• second flanges extending generally perpendicularly from said first flanges;
• and
• third flanges extending upwardly from said second flanges at an angle less than 90° from said second flanges;
• said grid work member connecting a first portion of said mounting means to a second portion of said mounting means and spanning a space between said first and said second portions, said space approximately as wide as said opening in said structure, said grid work member compressively urging into a intersections of said second flanges and said third flanges to secure said grid work member to said mounting means;
• and
• locking members additionally securing said grid work member to said mounting means, said locking members extending through said third flanges into channels between said second flanges and said third flanges.