Patent ID: 6205738
Filing Date: 2001-03-27
Classification: E04B,E04C,F24F,Y10T

Abstract:
A frame for forming a housing of a group of air-handling units, said frame comprising a plurality of angle columns and a plurality of three-way unions for each joining three said angle columns extended in X-axis, Y-axis, and Z-axis directions; said angle columns being formed from a plastic material by extrusion and having a hollow main body, and said three-way unions being integrally formed from a plastic material by injection molding, andwherein said three-way unions each include a base defining three continuous front surfaces in X-axis, Y-axis, and Z-axis directions, and three connection legs integrally connected to said base and separately projected from a rear side of said three front surfaces; and three injection molded reinforcing plates being separately provided to root portions of said three connection legs in such a manner that said reinforcing plates provide positions between said three connection legs for front panels mounted on said frame to complete said housing of said group of air-handling units, andwherein said angle columns have laterally symmetrical structure and said hollow main body of said angle columns have an axially extended internal middle rib that divides an inner space of said hollow main body into two identical closed spaces.