Health chair a dynamically balanced task chair

• US 7,040,703 B2
• Filed: 03/28/2003
• Issued: 05/09/2006
• Est. Priority Date: 03/29/2002
• Status: Expired due to Fees

• Current Assignee: Garrex, LLC
• Original Assignee: Garrex, LLC
• Inventors: Sanchez, Gary L.
• Primary Examiner(s): Brown, Peter R.
• Application Number:
  US10/401,481
• Publication Number:
  US 20030197407A1
• Time in Patent Office: 1,138 Days
• Field of Search: 297/353, 297/284.1, 297/284.4, 297/452.26, 297/452.29, 297/354.1, 297/354.12, 297/374, 297/302.5, 297/302.7, 297/300.8
• US Class Current: 297/353
• CPC Class Codes: A47C 7/405 with double backrests
• CPC Class Codes: A47C 7/46 with special, e.g. adjustable , lumbar region support profile; "Ackerblom" profile chairs

Abstract

Healthy task seating is achieved by integrating three dynamics into a unique, dynamically balanced chair design that provides: (a) adaptable design features to accommodate a wide range of body dimensions, (b) a series of independent and adjustable support means to accommodate a wide range of tasks, and (c) means for promoting active seating.

Claims

1. An adjustable task chair comprising:

a base;

a seat comprising a seating surface supported by a frame;

at least two vertically adjustable back supports, each said adjustable back support independently supported by a vertically adjustable arm, one of said back supports supporting a lower back of a seated person and another of said back supports supporting an upper back of the seated person; and

each said arm supported by said frame, pivotally attached to said frame and each said arm independently adjustable, independent of each said other arm, to adjust a position of each said back support in an anterior and a posterior direction about a pivot point irrespective of tension at a point of attachment of each said arm to said frame.

2. An adjustable task chair according to claim 1, further comprising at least two adjustable forearm supports.

3. An adjustable task chair according to claim 2, wherein said forearm supports are adjustably and connectedly integrated with said chair.

4. An adjustable task chair according to claim 1, wherein each vertically adjustable back support further comprises a spinal relief channel.

5. An adjustable task chair according to claim 1, wherein said seating surface further comprises a coccyx pressure relief depression.

6. A healthy task seating system comprising:

a base;

a seat comprising a seat frame;

at least two back supports pivotally attached to said seat frame and adjustable independent of each other in anterior and posterior positions about a pivot point irrespective of tension at a point of attachment of each said arm to said frame and adjustable in vertical positions; and

wherein said adjustable back supports are integrated to promote healthy seating while the user is performing various tasks from a seated position.

7. The seating system of claim 6, wherein said back supports are adjustably and independently secured to said seat frame and are flexible to accommodate a wide range of body dimensions with integrated dynamic support.

8. The seating system of claim 6, further comprising adjustable forearm supports.

9. The seating system of claim 6 comprising at least one adjustable EXO support skeleton comprising an adjustable, contoured, hinged, horizontal sacrum/lumbar cradle support to provide horizontal support to a sacral region of a spine.

10. The seating system of claim 9, wherein said sacrum/lumbar cradle support comprises a sacrum/lumbar rocker arm member.

11. The seating system of claim 6 comprising at least one adjustable EXO support skeleton, said support skeleton comprising an adjustable, contoured, winged support brace for supporting a thoracic/cervix region of a spine.

12. The seating system of claim 11, wherein said thoracic/cervix winged support brace comprises a thoracic/cervix rocker arm member.

13. The seating system of claim 6 further comprising supports that provide for more than one seating positions.

14. The seating system of claim 6 further comprising a support system easily adjustable in more than one direction and plane.

15. A bi-thorumix, dynamically balanced task chair comprising:

a first adjustable posterior support comprising a rocker arm thoracic/cervix suspending cradle support; and

a second adjustable posterior support comprising a rocker arm sacrum/lumbar suspending cradle support; and

said first posterior support and said second posterior support adjustable independent of each other in anterior and posterior positions irrespective of tension at a point of attachment of each said arm to said frame and adjustable in vertical positions.

16. An adjustable task chair comprising:

a base;

a seat comprising a seating surface supported by said base;

at least two vertically adjustable back supports, each said support independently attached to said seat; and

two adjustable forearm supports,

wherein said back supports comprise independently adjustable spring arms and an adjustable, horizontal brace support disposed on each said arm, and wherein each said arm is independently attached to said base providing anterior and posterior adjustments about a pivot point to said horizontal brace supports irrespective of tension at a point of attachment of each said arm to said seat, said spring arms adjustable independent of each other.

17. The adjustable task chair of claim 16, wherein each said adjustable, horizontal brace support comprises a spinal relief channel.

18. The adjustable task chair of claim 16, wherein said seating surface further comprises a coccyx pressure relief depression.