Box springs with wire columns and partial coils

Details Box springs with wire columns and partial coils Box springs with wire columns and partial coils

A - Human Necessities

47

C

360/37

A47C 23/043 (2006.01) A47C 23/00 (2006.01)

Patent

CA 1326570

ABSTRACT OF THE DISCLOSURE A box spring assembly that comprises a rectangular frame and a mattress support deck above the frame is supported by a plurality of deck support springs arranged between the deck and the frame. Each spring has a deck attaching portion, a yieldable portion, and a foot portion. The yieldable portion of the springs comprises a coil spring portion joining a wire column portion having one or more straight torsion bar portions thereby combining the characteristics of limited deflection columns and for torsion bars with the equalized torsional stresses of a coil spring to provide improved impact withstand capability and improved impact loading response and a soft firmness in a box spring assembly.

601138

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