System and method for designing a seat

• US 7,797,138 B2
• Filed: 05/02/2005
• Issued: 09/14/2010
• Est. Priority Date: 05/03/2004
• Status: Expired due to Fees

• Current Assignee: ERL LLC
• Original Assignee: ERL LLC
• Inventors: Brodeur, Raymond R., Reynolds, Herbert M.
• Primary Examiner(s): FREJD, RUSSELL WARREN
• Application Number:
  US11/119,578
• Publication Number:
  US 20050242650A1
• Time in Patent Office: 1,961 Days
• Field of Search: 703/1, 703 6- 8, 297/219.12, 297/392, 297/397, 297/399, 738/664
• US Class Current: 703/1
• CPC Class Codes: A47C 31/126 for chairs
• CPC Class Codes: B60N 2/00 Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles railway seats B61D33/00; cycle seats B62J1/00; aircraft seats B64D11/06, B64D25/04, B64D25/10
• CPC Class Codes: B60N 2/7017 characterised by the manufacturing process; manufacturing upholstery or upholstery springs not otherwise provided for
• CPC Class Codes: B60N 2/90 Details or parts not otherwise provided for

Abstract

A computer based system and method for establishing one or more patches related to a seat to be designed is provided. The system method establish a set of environment characteristics, a set of interface characteristics, and a pool of body templates. The pool of body templates are representative of target occupants of the seat. The system and method further establish a seat design as a function of the established environment characteristics, interface characteristics, and body templates by defining a plurality of patches.

Claims

1. A computer based method for designing a seat for use in an environment, comprising:

establishing a set of environment characteristics;

establishing a set of interface characteristics;

establishing a pool of body templates, the pool of body templates being representative of target occupants of the seat;

establishing a seat design as a function of the established environment characteristics, interface characteristics, and body templates by defining a plurality of patches, the patches representing interaction between an area of the seat and the body templates and defining a surface of the seat design, each patch having a length, a width, a bolster height, a bolster width and a bolster angle;

storing the seat design as a tool to be used in a CAD package; and

,

allowing a user of the CAD package to use the tool to design and/or evaluate an actual seat.

2. A computer based method, as set forth in claim 1, wherein at least one of the patches has a first state and a second state, the first state defining how the area of the seat will be deformed by the representative target occupants, the second state defining an undeflected state of the area of the seat.

3. A computer based method, as set forth in claim 1, wherein at least one of the patches is a cushion patch.

4. A computer based method, as set forth in claim 3, wherein the cushion patch is one of a nose of seat patch, front of thigh patch, thigh patch, and an ischial patch.

5. A computer based method, as set forth in claim 1, wherein at least one of the patches is a back patch.

6. A method, as set forth in claim 5, wherein the back patch is one of a bite line patch, a lumbar patch, a chest patch, a shoulder patch, and a head restraint patch.

7. A computer based method, as set forth in claim 1, wherein at least one of the patches is one of an ischial patch, a thigh support patch, a front of thigh patch, a nose of seat patch, a bite line region patch, a lumbar patch, a chest patch, a shoulder patch, and a head restraint patch.

8. A computer based method, as set forth in claim 1, wherein at least one of the patches is established relative to an anatomical reference point.

9. A computer based method, as set forth in claim 1, wherein the patches include a two-dimensional cross section of the seat.

10. A computer based method, as set forth in claim 9, wherein the cross-section includes first and second edges, the patch including a pair of bolsters located adjacent the first and second edges of the cross-section and being separated therefrom by a pair of trenches.

11. A computer based method, as set forth in claim 1, the patch further including a maximum bolster penetration.

12. A computer based method, as set forth in claim 1, wherein one of the patches is a contact patch defining an area of the seat which will be deformed by the representative target occupants and another of the patches is a non-contact patch defining an area of the seat which will be not deformed by any of the representative target occupants.

13. A computer based method, as set forth in claim 1, wherein the environment characteristics are related to an adjustment mechanism of the seat.

14. A computer based method, as set forth in claim 1, wherein the environment characteristics are related to an environment in which the seat will be located.

15. A computer based method, as set forth in claim 14, wherein the environment is a motor vehicle.

16. A computer based method, as set forth in claim 15, wherein the motor vehicle includes a steering wheel, at least one of the environment characteristics being related to the steering wheel.

17. A computer based method, as set forth in claim 1, wherein the environment characteristics include one or more of a heel reference point, an accelerator pedal length, an accelerator pedal width.

18. A computer based method, as set forth in claim 1, wherein the interface characteristics are related to one or more of occupant joint angles, occupant-seat interaction, and vision targets.

19. A computer based method, as set forth in claim 1, wherein the patches are established as a function of a set of predetermined manufacturability criteria.

20. A system for establishing one or more patches related to a seat to be designed for an environment, comprising:

a user interface for establishing a set of environment characteristics, a set of interface characteristics, and a pool of body templates, the pool of body templates being representative of target occupants of the seat; and

a computing device coupled to the user interface for establishing a seat design as a function of the established environment characteristics, interface characteristics, and body templates by defining a plurality of patches, the patches representing interaction between an area of the seat and the body templates and defining the surface of the seat design, each patch having a length, a width, a bolster height, a bolster width and a bolster angle, the computing device for storing the seat design as a tool to be used in a CAD package and allowing a user of the CAD package to use the tool to design and/or evaluate an actual seat.

21. A system, as set forth in claim 20, wherein at least one of the patches has a first state and a second state, the first state defining how the area of the seat will be deformed by the representative target occupants, the second state defining an undeflected state of the area of the seat.

22. A system, as set forth in claim 20, wherein at least one of the patches is a cushion patch.

23. A system, as set forth in claim 22, wherein the cushion patch is one of a nose of cushion patch, a front of thigh patch, thigh patch, and an ischial patch.

24. A system, as set forth in claim 20, wherein at least one of the patches is a back patch.

25. A system, as set forth in claim 24, wherein the back patch is one of a bite line patch, a lumbar patch, a chest patch, a shoulder patch, and a head restraint patch.

26. A system, as set forth in claim 20, wherein one of the patches is one of an ischial patch, a thigh support patch, a front of thigh patch, a nose of cushion patch, a biteline region patch, a lumbar patch, a chest patch, a shoulder patch, and a head restraint patch.

27. A system, as set forth in claim 20, wherein the patch is established relative to an anatomical reference point.

28. A system, as set forth in claim 20 wherein the each patch includes a two-dimensional cross section of the seat.

29. A system, as set forth in claim 28, wherein the cross-section includes first and second edges, each patch including a pair of bolsters located adjacent the first and second edges of the cross-section and being separated therefrom by a pair of trenches.

30. A system, as set forth in claim 20, the patch further including a maximum bolster penetration.

31. A system, as set forth in claim 20, wherein at least one of the patches is a contact patch defining an area of the seat which will be deformed by the representative target occupants and another of the patches is a non-contact patch defining an area of the seat which will be not deformed by any of the representative target occupants.

32. A system, as set forth in claim 20, wherein the environment characteristics are related to an adjustment mechanism of the seat.

33. A system, as set forth in claim 20, wherein the environment characteristics are related to an environment in which the seat will be located.

34. A system, as set forth in claim 33, wherein the environment is a motor vehicle.

35. A system, as set forth in claim 34, wherein the motor vehicle includes a steering wheel, at least one of the environment characteristics being related to the steering wheel.

36. A system, as set forth in claim 20, wherein the environment characteristics include one or more of a heel reference point, an accelerator pedal length, an accelerator pedal width.

37. A system, as set forth in claim 20, wherein the interface characteristics are related to one or more of occupant joint angles, occupant-seat interaction, and vision targets.