Patent ID: 9022369
Filing Date: 2015-05-05
Classification: A47C

Abstract:
1. A mattress innerspring comprising a plurality of interconnected reverse coil head coils, each reverse coil head coil having: a generally helical coil body with a plurality of generally helical turns of wire; a first coil end contiguous with a first end of the coil body and substantially lying in a plane which is generally perpendicular to an axis of the coil body; a second coil end contiguous with a second end of the coil body and substantially lying in a plane which is generally perpendicular to the axis of the coil body; the first coil end having an offset which is located on a first side of a reference plane which passes through the coil body, the offset of the first coil end having a stepped segment defined by first and second segments and a third segment located between the first and second segments and wherein the first and second segments are substantially coplanar with the third segment; the second coil end having an offset which is located on a second side of the reference plane which passes through the coil body, the offset of the second coil end having a stepped segment defined by first and second segments and a third segment located between the first and second segments and wherein the first and second segments are substantially coplanar with the third segment; the plurality of reverse coil head coils arranged in a matrix and wherein the axes of the coils are generally parallel and the first coil ends are generally co-planar and the second coil head ends are generally co-planar, the first coil ends of adjacent coils being laced together by a lacing wire, the lacing wire engaged with the offset of the first coil end of a coil and engaged with the offset of the first coil end of an adjacent coil, the first coil end having a terminal end extending from the offset of the first coil end, and the second coil ends of adjacent coils being laced together by a lacing wire, the lacing wire engaged with the offset of the second coil end of a coil and engaged with the offset of the second coil end of an adjacent coil, the second coil end having a terminal end extending from the offset of the second coil end.