Pocketed spring assembly

A bedding or seating product comprising:

• a pocketed spring assembly having a uniform height and comprising a plurality of parallel strings of springs including exterior strings and interior strings, each of said strings being joined to at least one adjacent string and being approximately the same height, each of said strings comprising first and second opposed plies of fabric and a plurality of pockets formed along a length of said string by transverse seams joining said first and second plies, and at least one spring positioned in each of said pockets;
• each of said springs having upper and lower end turns and a plurality of central convolutions between said end turns, at least one of the central convolutions having a barrel diameter greater than the diameters of the other convolutions of the spring;
• the pocketed spring assembly having a perimeter section surrounding an interior section, the perimeter section comprising two side sections and two end sections, each side of the perimeter section being firmer than the core section due to the out-of-pocket characteristics of the springs within the sections, each of the springs of the interior section having an out-of-pocket barrel diameter greater than the out-of-pocket barrel diameter of the springs of the end and side sections and each of the springs of the interior section having a shorter out-of-pocket height than the springs of the end and side sections,
• wherein each of said pockets of each of the exterior strings contains an edge spring, each of the edge springs having a first out-of-pocket barrel diameter and a first out-of-pocket height;
• each of the interior strings having two different springs, core and edge springs along its length and comprising outer pockets and inner pockets between the outer pockets, each of the inner pockets containing a core spring and each of the outer pockets containing an edge spring, each of the core springs having a second out-of-pocket barrel diameter and a second out-of-pocket height, the first out-of-pocket barrel diameter of the edge springs being less than the second out-of-pocket barrel diameter of the core springs and the first out-of-pocket height of the edge springs being greater than the second out-of-pocket height of the core springs, such that due to the core and edge springs having approximately the same in-pocket height, each of the interior strings having pocketed springs of different firmness, providing the pocketed spring assembly has with four sides of edge support, the pocketed edge springs surrounding the pocketed core springs.

A pocketed spring assembly for a bedding or seating product, said pocketed spring assembly comprising:

• interior and exterior parallel strings of springs of the same height, each of the strings being joined to at least one adjacent string, each of the strings comprising a plurality of interconnected pockets, each of the pockets containing at least one spring encased in fabric, the fabric being joined to itself along a longitudinal seam and having first and second opposed plies of fabric on opposite sides of the springs, the fabric of said first and second plies being joined by transverse seams;
• each of said springs having upper and lower end turns and a plurality of central convolutions between said end turns, the spring having two end portions and a middle portion between the end portions having a barrel diameter, the convolutions of the middle portion being greater in diameter than the convolutions of the end portions of the spring;
• the pocketed spring assembly having a perimeter section surrounding an interior section, the perimeter section comprising two side sections and two end sections, each side of the perimeter section being firmer than the core section due to the out-of-pocket characteristics of the springs within the sections, each of the springs of the interior section having an out-of-pocket barrel diameter greater than the out-of-pocket barrel diameter of the springs of the end and side sections and each of the springs of the interior section having a shorter out-of-pocket height than the springs of the end and side sections,
• wherein each of the pockets of each of the exterior strings contains a heavy edge spring and each interior string has two different springs along its length including a plurality of core springs contained in inner pockets and edge springs in outer pockets of the interior string, the core springs having a greater out-of-pocket barrel diameter and a smaller out-of-pocket height than the edge and heavy edge springs, such that the pocketed spring assembly has four sides of edge support, said edge and heavy edge springs surrounding the core springs.

A pocketed spring assembly for a bedding or seating product, said pocketed spring assembly comprising:

• interior and exterior parallel strings of springs of the same height, each of the strings being joined to at least one adjacent string, each of the strings comprising a plurality of interconnected pockets, each of the pockets containing at least one spring encased in fabric, the fabric being joined to itself along a longitudinal seam and having first and second opposed plies of fabric on opposite sides of the springs, the fabric of said first and second plies being joined by transverse seams;
• each of said springs having upper and lower end turns and a plurality of central convolutions between said end turns, the spring having two end portions and a middle portion between the end portions having a barrel diameter, the convolutions of the middle portion being greater in diameter than the convolutions of the end portions of the spring;
• the pocketed spring assembly having a perimeter section surrounding an interior section, the perimeter section comprising two side sections and two end sections, each side of the perimeter section being firmer than the core section due to the out-of-pocket characteristics of the springs within the sections, each of the springs of the interior section having an out-of-pocket barrel diameter greater than the out-of-pocket barrel diameter of the springs of the end and side sections and each of the springs of the interior section having a shorter out-of-pocket height than the springs of the end and side sections,
• wherein each of the pockets of each of the exterior strings contains a post spring and each interior string has two different springs along its length including a plurality of core springs contained in inner pockets and edge springs in outer pockets of the interior string, the core springs having an out-of-pocket barrel diameter greater than the edge springs, the edge springs having a greater out-of-pocket barrel diameter than the post springs and wherein the post springs having more convolutions than the core springs and edge springs.

A pocketed spring assembly for a bedding or seating product, said pocketed spring assembly comprising:

• interior and exterior parallel strings of springs, each of the exterior strings having the same spring along its length and each of the interior strings having two different springs along its length, each of the strings being joined to at least one adjacent string, each of the strings comprising a plurality of interconnected pockets, each of the pockets containing at least one spring encased in fabric, the fabric being joined to itself along a longitudinal seam and having first and second opposed plies of fabric on opposite sides of the springs, the fabric of said first and second plies being joined by transverse seams;
• each of said springs having upper and lower end turns and a plurality of central convolutions between said end turns, the largest diameter of the central convolutions being the spring's barrel diameter, all of the springs within a string being made of the same gauge wire;
• the pocketed spring assembly having a uniform height and a perimeter section surrounding an interior section, the perimeter section comprising two side sections and two end sections, each side of the perimeter section being firmer than the core section due to the out-of-pocket characteristics of the springs within the sections, each of the springs of the interior section having an out-of-pocket barrel diameter greater than the out-of-pocket barrel diameter of the springs of the end and side sections and each of the springs of the interior section having a shorter out-of-pocket height than the springs of the end and side sections,
• wherein each of the pockets of each of the exterior strings contains a post spring and each pocket of each interior string contains one of an edge spring and a core spring, the edge springs being in pockets outside the pockets containing the core springs to create edge support for the pocketed spring assembly, each of the core springs having a barrel diameter greater than the barrel diameter of the edge springs and a shorter out-of-pocket height than the edge springs, both the core and edge springs having fewer convolutions than the post springs.

A pocketed spring assembly for a bedding or seating product, said pocketed spring assembly comprising:

• interior and exterior parallel strings of springs of the same pocketed height, each of the strings being joined to at least one adjacent string, each of the strings comprising a plurality of interconnected pockets, each of the pockets containing at least one spring encased in fabric, the fabric being joined to itself along a longitudinal seam and having first and second opposed plies of fabric on opposite sides of the springs, the fabric of said first and second plies being joined by transverse seams, each of the pockets of the exterior strings containing the same springs, outer pockets of the interior strings containing springs different than inner pockets between the outer pockets of the interior strings;
• each of said springs having upper and lower end turns and a plurality of central convolutions between said end turns, the largest diameter of the central convolutions being the spring's barrel diameter;
• wherein the pocketed spring assembly has a perimeter section surrounding an interior section, the perimeter section comprising two side sections and two end sections, each side of the perimeter section being firmer than the core section due to the out-of-pocket characteristics of the springs within the sections, each of the springs of the interior section having an out-of-pocket barrel diameter greater than the out-of-pocket barrel diameter of the springs of the end and side sections and each of the springs of the interior section having a shorter out-of-pocket height than the springs of the end and side sections.