Patent ID: 6263533
Filing Date: 2001-07-24
Classification: A47C

Abstract:
An innerspring having a plurality of interconnected coils in a generally rectangular array and upper and lower border wires located at top and bottom ends of coils of the array about a perimeter of the innerspring,a corner coil reinforcement member positioned about each corner coil of the rectangular array of the innerspring, the corner coil reinforcement member having a generally cylindrical body portion dimensioned to extend from an upper border wire to a lower border wire, and having a cylindrical internal cavity configured to fit substantially entirely about an outer circumference of the coil, an exterior wall having an external surface configured to be generally aligned with a bend in the upper and lower border wire at the corners of the innerspring, and an interior wall configured to fit between a corner coil and at least two coils adjacent to a corner coil, the exterior wall having a radius of curvature different than a radius of curvature of the interior wall, and the exterior wall having a thickness greater than a thickness of the interior wall.