Box spring assembly with improved corner springs

Claim 1

In a box spring assembly which includes a generally horizontal rectangular frame and a generally horizontal spring wire mattress support deck disposed above and substantially parallel to said frame, said deck including a plurality of substantially straight wires arranged criss-cross fashion, some of said wires extending lengthwise of said frame and others of said wires extending crosswise of said frame and a border wire arranged in a generally rectangular shape in a supporting relation with said straight wires and having corner portions, and a plurality of limited deflection support springs arranged between said deck and said frame so as to yieldably support said deck on said frame; the improvement comprising corner springs mounted on said frame in positions yieldably supporting the corners of said deck, at least one of said corner springs comprising a wire body having a pair of substantially mutually perpendicular leg portions, each leg portion comprising a return bent upon itself wire section disposed in a generally vertical plane and secured to said frame, an attaching portion disposed in a side-by-side relation with a corner portion of said deck, clip means securing said side-by-side portions together, and upright load transmitting columns extending downwardly from the ends of said attaching portion and joined to said leg portions so as to yieldably collapse said return bent wire sections in response to downwardly directed loading of said columns.