Patent ID: 6116379
Filing Date: 2000-09-12
Classification: E06C

Abstract:
A ladder with a stabilizing folding triangulated cross brace system including(a) a ladder front section having a structural side rail on a left side of said ladder and a structural side rail on a right side of the ladder connected by a multiplicity of steps, said front section connected to(b) a support member having two or more support rails including a support rail on the left side of the ladder and a support rail on the right side of the ladder connected by a multiplicity of connecting bars, and(c) the stabilizing folding triangulated cross brace system including a first spreader having a first and second end, said first spreader first end adjacent a lower one of said steps, said first spreader extending generally horizontally from the left structural side rail toward and connected to the left support rail when said ladder is fully opened, a second spreader having a first and second end, said second spreader first end adjacent said lower one of said steps, said second spreader extending generally horizontally from the right structural side rail toward and connected to the right support rail when said ladder is fully opened, a third spreader connected to diagonally opposed rails together forming two triangles with the first and second spreaders, the lower one of said steps of the front section, and a lower one of the connecting bars of the support member, said spreaders providing a triangulation of cross bracing for the ladder for preventing the front section and the support member from flexing or twisting and(d) a foldable connecting means for attaching the third spreader to the diagonally opposed rails of the ladder.