H-point referenced seat cushion airbag system

Patent metadata

Field	Value
Publication number	US-9616839-B2
Application number	US-201414280635-A
Country	US
Kind code	B2
Filing date	May 18, 2014
Priority date	May 18, 2014
Publication date	Apr 11, 2017
Grant date	Apr 11, 2017

Abstract

A seat cushion airbag system includes an inflatable airbag with a boundary that bounds an inflatable area, the boundary positioned with respect to an H-point of an occupant.

First claim

What is claimed is:

1. A seat cushion airbag system, comprising:
an inflatable airbag including an inflatable area,
said inflatable area including an aft boundary that bounds the inflatable area,
said aft boundary positioned slightly forward of an H-point of an occupant in an undeployed condition and positioned farther forward of the H-point of the occupant in a deployed condition, wherein said H-point is defined as the hip point of a 50 th percentile male occupant and a 5 th percentile female occupant.

2. The system as recited in claim 1 , wherein said aft boundary is positioned within about 10 mm of the H-point in an undeployed condition.

3. The system as recited in claim 1 , wherein said aft boundary includes a double stitch.

4. The system as recited in claim 1 , wherein a torso to pelvis relationship of the occupant is changed by at least ten (10) degrees between the undeployed condition and the deployed condition.

5. The system as recited in claim 4 , wherein the torso to pelvis relationship is changed by about fifteen (15) degrees between the undeployed condition and the deployed condition.

6. The system as recited in claim 1 , wherein said aft boundary is positioned approximately 70 mm forward of the H-point in the deployed condition.

7. A seat cushion airbag system, comprising:
an inflatable airbag including an inflatable area,
said inflatable area including an aft boundary that bounds the inflatable area,
said aft boundary positioned generally vertically in-line with an H-point of an occupant in an undeployed condition and positioned substantially forward of the H-point of the occupant in a deployed condition, wherein said inflatable area further includes a forward boundary with an opening for a wire harness to an inflator within said inflatable area.

8. A seat cushion airbag system, comprising:
an inflator; and
an inflatable airbag with a boundary that bounds an inflatable area,
said boundary including a forward boundary including an opening for a wire harness to said inflator contained within said inflatable area,
said boundary further including an aft boundary positioned generally vertically in-line with an H-point of an occupant in an undeployed condition and positioned substantially forward of the H-point of the occupant in a deployed condition.

9. The system as recited in claim 8 , wherein said boundary includes a double stitch.

10. The system as recited in claim 8 , wherein said opening is offset from a longitudinal centerline of said forward boundary.

11. The system as recited in claim 8 , wherein said opening is about 35 mm wide.

12. The system as recited in claim 8 , wherein said inflator includes mounts for attachment to a frame of a lower seat structure.

13. The system as recited in claim 8 , wherein said inflatable airbag includes a flap with apertures that folds at the forward boundary to receive a multiple of studs that extend from said inflator.

14. The system as recited in claim 8 , wherein a torso to pelvis relationship of the occupant is changed by at least ten (10) degrees between the undeployed condition and the deployed condition.

15. The system as recited in claim 8 , wherein said aft boundary is positioned approximately 70 mm forward of the H-point in the deployed condition.

16. A seat cushion airbag system, comprising:
an inflatable airbag including an inflatable area,
said inflatable area including an aft boundary that bounds the inflatable area,
said aft boundary positioned generally vertically in-line with an H-point of an occupant in an undeployed condition, wherein said H-point is defined as the hip point of a 50 th percentile male occupant and a 5 th percentile female occupant.

Assignees

• Toyota Motor Eng & Mfg North America Inc

Inventors

• Khouphongsy Emily Ann

Classifications

• B60N2/42718

  with anti-submarining systems · CPC title

• B60R2021/0055

  Pelvis · CPC title

• B60R21/2334

  Expansion control features · CPC title

• B60R2021/0044

  Chest · CPC title

• B60R21/207 Primary

  in vehicle seats · CPC title