Compliant seating structure

Patent metadata

Field	Value
Publication number	US-10219627-B2
Application number	US-201715715496-A
Country	US
Kind code	B2
Filing date	Sep 26, 2017
Priority date	Sep 29, 2016
Publication date	Mar 5, 2019
Grant date	Mar 5, 2019

Abstract

A seating structure includes a shell having a central portion, opposite outer peripheral edges laterally spaced from opposite sides of the central portion, and at least one biasing array disposed between each of the opposite sides of the central portion and a respective outer peripheral edge. Each of the biasing arrays includes a plurality of spaced apart support members and at least one connector connecting adjacent support members within each array. The biasing array may include a plurality of biasing arrays, with at least one connector connecting adjacent biasing arrays. A second shell may be connected to the outer peripheral edges of the first shell, with an open space defined there between. Each of the opposite outer peripheral edges is independently deflectable in response to a load being applied to the second shell.

First claim

What is claimed is:

1. A seating structure comprising: a shell comprising a central portion, opposite outer peripheral edges laterally spaced from opposite sides of the central portion, and at least one biasing array connected to each of the opposite sides of the central portion and a respective laterally spaced outer peripheral edge; wherein each of the biasing arrays comprises a plurality of spaced apart support members and at least one connector connecting adjacent support members within each array.

2. The seating structure of claim 1 wherein the shell further comprises a pair of arms extending laterally and in opposite directions from one end of the central portion, a pair of second arms extending laterally and in opposite directions from an opposite end of the central portion, wherein the at least one biasing array is disposed between the first and second arms on a respective side of the central portion.

3. The seating structure of claim 1 wherein the at least one biasing array comprises a plurality of biasing arrays, and further comprising at least one connector connecting adjacent biasing arrays.

4. The seating structure of claim 3 wherein the at least one connector connecting the adjacent support members and the at least one connector connecting the adjacent biasing arrays are integrally formed as a single connector.

5. The seating structure of claim 3 wherein the plurality of biasing arrays comprise longitudinally spaced, linear arrays of support members extending laterally between one of the opposite sides of the central portion and the respective laterally spaced outer peripheral edge.

6. The seating structure of claim 5 wherein the support members of each linear array are progressively bifurcated between the central portion and the outer peripheral edge.

7. The seating structure of claim 6 wherein the support members are bifurcated every other support element.

8. The seating structure of claim 3 wherein the plurality of biasing arrays comprise a plurality of laterally spaced U-shaped arrays of support members, each U-shaped array comprising an elongated longitudinal support element and at least one auxiliary support dement extending between each end of the longitudinal support element and the respective laterally spaced outer peripheral edge of the shell.

9. The seating structure of claim 8 wherein the plurality of U-shaped arrays comprises an innermost U-shaped array nested between the central portion and the first and second arms, and wherein the remaining U-shaped arrays are progressively nested within adjacent U-shaped arrays.

10. The seating structure of claim 1 wherein the shell comprises a first shell, and further comprising a second shell connected to the outer peripheral edges of the first shell, the first and second shells defining an open space there between across a span between the outer peripheral edges.

11. The seating structure of claim 10 wherein the open space is free of any connection between the first and second shells.

12. The seating structure of claim 11 wherein the second shell comprises a plurality of longitudinally spaced strips defined by longitudinally spaced slots.

13. The seating structure of claim 10 wherein the at least one connector extends into the open space defined between the first and second shells and defines a living hinge.

14. The seating structure of claim 10 wherein the central portion and the plurality of support members of the first shell define a substantially flush outer surface facing away from the second shell.

15. The seating structure of claim 1 wherein at least some of the plurality of support members are arranged in a checkerboard pattern.

16. The seating structure of claim 1 wherein said plurality of spaced apart support members are defined by a continuous serpentine element extending between the central portion and the outer peripheral edge, the serpentine element defining a plurality of longitudinal slots between the support members.

17. The seating structure of claim 16 wherein at least some of the support members have a U-shape.

18. The seating structure of claim 1 wherein at least some of said plurality of spaced apart support members are defined by U-shaped support members nested within adjacent support members.

19. A seating structure comprising: a first load bearing shell comprising a central portion, opposite outer peripheral edges laterally spaced from opposite sides of the central portion, and at least one biasing array connected to each of the opposite sides of the central portion and a respective laterally spaced outer peripheral edge, wherein each of the biasing arrays comprises a plurality of spaced apart support members and at least one connector connecting adjacent support members within each array; and a second body-supporting shell connected to the outer peripheral edges of the first shell, the first and second shells defining an open space there between wherein each of the opposite outer peripheral edges are independently deflectable in a fore and aft direction in response to a load being applied to the second body-supporting shell.

20. The seating structure of claim 19 wherein the first load bearing shell further comprises a pair of arms extending laterally and in opposite directions from one end of the central portion, a pair of second arms extending laterally and in opposite directions from an opposite end of the central portion, wherein the at least one biasing array is disposed between the first and second arms on a respective side of the central portion.

21. The seating structure of claim 19 wherein the at least one biasing array comprises a plurality of biasing arrays.

22. The seating structure of claim 21 comprising at least one connector connecting adjacent biasing arrays.

23. The seating structure of claim 21 wherein the plurality of biasing arrays comprise longitudinally spaced, linear arrays of support members extending laterally between one of the opposite sides of the central portion and the respective laterally spaced outer peripheral edge.

24. The seating structure of claim 23 wherein the support members of each linear array are progressively bifurcated between the central portion and the outer peripheral edge.

25. The seating structure of claim 19 wherein the second body-supporting shell comprises a plurality of longitudinally spaced strips defined by vertically spaced slots.

26. The seating structure of claim 19 wherein the at least one connector extends into the open space defined between the first and second shells and defines a living hinge.

27. The seating structure of claim 19 wherein the central portion and the plurality of support members of the first shell define a substantially flush outer surface facing away from the second shell.

Assignees

• Steelcase Inc

Inventors

• Deevers Nickolaus William Charles
• Heidmann Kurt R

Classifications

• A47C7/16

  Seats made of wooden, plastics, or metal sheet material; Panel seats · CPC title

• A47C7/027 Primary

  with elastomeric springs (A47C7/282 takes precedence) · CPC title

• A47C7/40 Primary

  for the back · CPC title

• A47C7/282

  with mesh-like supports, e.g. elastomeric membranes · CPC title

• A47C5/12

  of plastics, with or without reinforcement · CPC title