Pocketed spring assembly comprising strings of springs of different heights and enhanced ventilation

Patent metadata

Field	Value
Publication number	US-9332856-B2
Application number	US-201414461892-A
Country	US
Kind code	B2
Filing date	Aug 18, 2014
Priority date	Jun 17, 2014
Publication date	May 10, 2016
Grant date	May 10, 2016

Abstract

A pocketed spring assembly comprises a plurality of parallel strings of individually pocketed springs of different heights. Each string is joined to an adjacent string. Each string has first and second opposed plies of fabric and a plurality of pockets formed along a length of the string by transverse seams joining the plies. An upper end of each transverse seam is below the upper surface of the string so as to partially separate adjacent pockets within a string of springs when the spring is relaxed. The strings of springs have ventilation openings to increase airflow.

First claim

What is claimed is:

1. A bedding or seating product comprising:
a pocketed spring assembly having two border sections and an interior section between the border sections, each border section comprising a plurality of parallel longitudinally extending tall strings of springs joined together for edge support and the interior section comprising a plurality of parallel longitudinally extending alternating tall and short strings of springs, the tall strings of springs having a greater height than the short strings of springs, each of said strings of springs comprising a plurality of individually pocketed springs, each of said strings of springs comprising a piece of fabric joined along a longitudinal seam, first and second opposed plies of fabric being on opposite sides of the springs, a plurality of pockets being formed along a length of said string of springs by transverse seams joining said first and second plies, at least one spring being positioned in each said pocket,
wherein a portion of each of the strings of springs has a plurality of ventilation openings and an upper end of each of said transverse seams forming adjacent pockets of said pockets of each of said tall strings of springs is below an upper surface of said tall string of springs so as to partially separate adjacent pockets;
cushioning materials; and
an upholstered covering encasing said pocketed spring assembly and cushioning materials.

2. A bedding or seating product comprising:
a pocketed spring assembly having two border sections and an interior section between the border sections, each border comprising a plurality of parallel tall strings of springs joined together for edge support and the interior section comprising a plurality of parallel longitudinally extending alternating tall and short strings of springs, the tall strings of springs having a greater height than the short strings of springs, each of said strings of springs comprising a plurality of individually pocketed springs, each of said strings of springs comprising a piece of fabric joined along a longitudinal seam, first and second opposed plies of fabric being on opposite sides of the springs, a plurality of pockets being formed along a length of said string of springs by transverse seams joining said first and second plies, at least one spring being positioned in each said pocket,
wherein a portion of each of the strings of springs has a plurality of ventilation openings and an upper end of each of said transverse seams forming adjacent pockets of said pockets of each of said tall strings of springs is below an upper surface of said string so as to partially separate adjacent pockets.

3. The product of claim 2 wherein each of the springs has an upper end turn, a lower end turn and a plurality of convolutions between the end turns, within each of the tall strings of springs, the upper end turns of each of said springs being above the upper end of adjacent transverse seams when the spring is relaxed.

4. The product of claim 2 wherein each border section comprises a pair of strings of springs.

5. The product of claim 2 further comprising a bucket inside which the pocketed spring assembly is located.

6. The product of claim 5 wherein the bucket is made at least partially of foam.

7. The product of claim 3 wherein each of the springs has a uniform diameter.

8. The product of claim 5 wherein the bucket includes a border made of foam.

9. A pocketed spring assembly for a bedding or seating product, said pocketed spring assembly comprising two border sections and an interior section between the border sections, each border section comprising a plurality of strings of springs extending longitudinally, said interior section comprising a plurality of parallel strings of springs, said strings of springs of said interior section being of different heights relative to each other, said plurality of strings of said border section having a height greater than some of the strings of springs in the interior section, each of the strings being joined to an adjacent string of springs, 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,
wherein said transverse seams of at least some of said strings of springs form adjacent pockets having one end located below an upper surface of said string so as to partially separate said adjacent pockets.

10. The pocketed spring assembly of claim 9 wherein a portion of each of the strings of springs has multiple ventilation openings.

11. The pocketed spring assembly of claim 9 wherein said strings of springs of said interior section alternate between strings of a first height and strings of a second height different than the first height.

12. The pocketed spring assembly of claim 10 wherein only a portion of each of said strings of springs has said ventilation openings.

13. The pocketed spring assembly of claim wherein the strings of springs of the border sections are of a first height and some of the strings of springs of the interior section are the same first height.

14. The pocketed spring assembly of claim 13 wherein the interior section of the product comprises alternating strings of different heights.

15. A pocketed spring assembly for a bedding or seating product, said pocketed spring assembly comprising:
two edge support sections and an interior section between the edge support sections, each edge support section comprising a plurality of parallel strings of springs, each of the parallel strings of springs of the edge support sections being of equal height, the interior section comprising a plurality of parallel strings of springs wherein at least some of the strings of springs of the interior section have a first height and at least some of the strings of springs of the interior section have a second height, the first height being different from the second height, each of the strings of the edge support section having a height greater than at least some of the strings of the interior section, each of the strings being joined to an adjacent string of springs, each of the strings comprising a plurality of interconnected pockets, each of the pockets containing at least one spring encased in fabric and having ventilation openings through the fabric, the fabric being joined to itself along a longitudinal side 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 central convolutions between the end turns,
wherein each of said transverse seams forming adjacent pockets of at least some of said strings of springs has an upper end located below an upper surface of said string so as to partially separate said adjacent pockets and enable an upper end portion of a respective spring of the springs to compress without substantially compressing the central convolutions of the respective spring.

16. The spring assembly of claim 15 wherein the upper end turn of each of said springs are above the upper end of adjacent transverse seams when the spring is in a relaxed condition.

17. The spring assembly of claim 15 wherein said strings of springs extend longitudinally.

18. The spring assembly of claim 15 wherein said strings of springs extend tra

Assignees

• L&P Property Man Co

Inventors

• Eigenmann Guido
• Richmond Darrell A

Classifications

• A47C27/05

  with {padding material, e.g.} foamed material, in top, bottom, or side layers · CPC title

• A47C27/064 Primary

  Pocketed springs · CPC title

• A47C7/742

  for ventilating or cooling (A47C31/116 takes precedence) · CPC title

• A47C21/042

  for ventilating or cooling (A47C21/028 and A47C27/007 take precedence) · CPC title

• A47C23/043

  using wound springs · CPC title