Mattress
AssigneeLeggett & Platt, Incorporated
InventorLarry Higgins
Life of this patent
Estimating the term…
Abstract
A mattress having increased firmness in a preselected area on both sides of the mattress through use of a welded wire grid structure attached to the opposite sides of the mattress. In one preferred form, the increased firmness is provided only in a preselected area, e.g., the center one-third area of the mattress, by a welded wire grid while in another preferred embodiment, the grid wires extend over the complete area of the mattress. The wire grids are preformed and assembled as a separate subassembly and are attached to the preassembled spring core by conventional connectors, as for example, conventional hog rings.
Claims7
An improved mattress comprising,
- a coil spring assembly including a plurality of coil springs arranged in a matrix configuration having a plurality of transverse coil spring rows and a plurality of longitudinal coil spring columns, said transverse rows and longitudinal columns of coil springs being interconnected by helical lacing wires,
- two wire grids sized to overlie a desired and pre-selected surface area of that coil spring matrix, one of said wire grids being located on the top surface of said mattress, and the other of said wire grids being located on the bottom surface of said mattress, each of said wire grids having a border wire and a plurality of grid wires welded to said grid border wire, each of said wire grids being constructed as a preformed subassembly prior to connection with said coil spring assembly, and said coil spring assembly being constructed as a preformed subassembly prior to connection with said wire grids, and
- connector means for connecting each of said wire grids to said coil spring assembly in said pre-selected area.
Dependencies are inferred from the claim text.