Seat mounting structure for mitigating injury in side impacts

• US 7,124,851 B2
• Filed: 12/15/2003
• Issued: 10/24/2006
• Est. Priority Date: 12/15/2003
• Status: Active Grant

• Current Assignee: Autoliv ASP Incorporated (Autoliv Incorporated)
• Original Assignee: Autoliv ASP Incorporated (Autoliv Incorporated)
• Inventors: Smith, Bradley W., Paxton, Donald J., Barbat, Saeed D.
• Primary Examiner(s): Fleming, Faye M.
• Assistant Examiner(s): Spisich, George D.
• Application Number:
  US10/736,130
• Publication Number:
  US 20050127645A1
• Time in Patent Office: 1,044 Days
• Field of Search: 280/274, 280/282, 280/748, 280/784, 296/68.1, 296/65.05, 296/65.11, 296/65.12, 296/65.15, 296/187.12, 297/344.14, 297/344.15, 297/344.16, 180/274, 180/282
• US Class Current: 180/274
• CPC Class Codes: B60N 2/015 Attaching seats directly to vehicle chassis
• CPC Class Codes: B60N 2/4235 transversal
• CPC Class Codes: B60N 2/42736 of the whole seat
• CPC Class Codes: B60N 2/4279 electric or electronic triggering
• CPC Class Codes: B60R 2019/007 Means for adjusting or regulating the crash absorption capacity of the vehicle, e.g. when detecting an impending collision
• CPC Class Codes: B60R 2021/0006 Lateral collision
• CPC Class Codes: B60R 21/013 including means for detecting collisions, impending collisions or roll-over
• CPC Class Codes: B60R 21/0134 responsive to imminent contact with an obstacle , e.g. using radar systems
• CPC Class Codes: B60R 21/23138 specially adapted for side protection B60R21/23184, B60R21/232 take precedence

Abstract

A seat mounting structure is disclosed for reducing injury to vehicle occupants in side impact collisions. The seat mounting structure may include an inflation module, a linkage system, a sensor system, and a side airbag. The inflation module may include an inflatable structure and inflator or a piston device. The linkage system attaches the seat mounting structure to a seat and may help guide the movement of the seat. The sensor system may include a radar sensor and an optical sensor to help the sensor system anticipate an impending side impact. The seat mounting structure mitigates injury to the occupant by moving the occupant vertically up and laterally toward a centerline of the vehicle, thus increasing the space between the sidewall of the vehicle and the occupant. Additionally, the inflation module may comprise an inflatable structure that stiffens a floor structure of the vehicle upon inflation.

Claims

1. A seat mounting structure for use in a vehicle, that lessens the risk of injury to an occupant in side-impact collisions, the seat mounting structure comprising:

a sensor system;

a linkage system that guides a seat vertically up and laterally toward a centerline of the vehicle in such a manner that the seat is uniformly displaced in a substantially curvilinear translation such that little or no tilting of the seat takes place; and

an inflation module comprising an inflator and an inflatable structure, wherein the inflatable structure inflates in response to the sensor system, wherein the inflation of the inflatable structure displaces the seat in accordance with the linkage system.

2. The seat mounting structure of claim 1, wherein the inflation of the inflatable structure stiffens a floor structure of the vehicle to resist intrusion in a side-impact.

3. The seat mounting structure of claim 2, wherein the inflatable structure comprises metal.

4. The seat mounting structure of claim 3, wherein the thickness of the metal of the inflatable structure is in the range of about 0.04 inches to about 0.06 inches.

5. The seat mounting structure of claim 2, wherein the inflatable structure comprises an elongated structure having two folded sidewalls.

6. The seat mounting structure of claim 1, wherein the linkage system comprises a bar, wherein the bar comprises a first end pivotally fixed in position with respect to the vehicle and a second end pivotally fixed in position with respect to the seat, wherein the bar pivots about the first end and the second end in response to inflation of the inflatable structure in order to guide the seat vertically up and laterally toward the centerline of the vehicle.

7. The seat mounting structure of claim 1, wherein the linkage system comprises a track attached to a top portion of the inflation module, wherein the seat slides laterally toward the centerline of the vehicle while the inflatable structure displaces the seat vertically up.

8. The seat mounting structure of claim 1, wherein the sensor system comprises an anticipatory sensor system that initiates the inflation of the inflatable structure in anticipation of an impending side impact.

9. The seat mounting structure of claim 8, wherein the anticipatory sensor system comprises an optical sensor.

10. The seat mounting structure of claim 8, wherein the anticipatory sensor system comprises a radar sensor.

11. A seat mounting structure for use in a vehicle, that lessens the risk of injury to an occupant in side impact collisions, the seat mounting structure comprising:

a sensor system;

a linkage system comprising a seat mount; and

an inflation module comprising a piston device, wherein the piston device actuates in response to the sensor system, wherein the seat mount is structured such that upon actuation of the piston device the seat is moved in such a manner that little or no tilting of the seat takes place, and wherein the seat is displaced vertically up and laterally toward a centerline of the vehicle.

12. The seat mounting structure of claim 11, wherein the linkage system comprises a track attached to a top portion of the piston device, wherein the seat slides laterally toward the centerline of the vehicle while piston device actuates the seat vertically up.

13. The seat mounting structure of claim 11, wherein the linkage system comprises a rail, wherein the rail guides the seat vertically up and laterally toward a centerline of the vehicle in response to a sensor system.

14. The seat mounting structure of claim 11, wherein the displacement of the seat approximates curvilinear translation of the seat.

15. The seat mounting structure of claim 11, wherein the seat mounting structure further comprises an anticipatory sensor system that actuates the piston device in anticipation of an impending side impact.

16. The seat mounting structure of claim 15, wherein the anticipatory sensor system comprises an optical sensor.

17. The seat mounting structure of claim 15, wherein the anticipatory sensor system comprises a radar system.

18. The seat mounting structure of claim 11, wherein the floor is stiffened to further protect a vehicle occupant.

19. An inflation module for use in a vehicle, that stiffens a floor structure of a vehicle and which moves a seat of the vehicle to lessen the risk of injury to an occupant in side impact collisions, the inflation module comprising:

an inflator;

a linkage system that guides a seat vertically up and laterally toward a centerline of the vehicle in such a manner that the seat is uniformly displaced in a substantially curvilinear translation such that little or no tilting of the seat takes place; and

an elongated inflatable structure, securely attached to the floor structure, wherein the elongated inflatable structure is oriented perpendicular to a sidewall of the vehicle, wherein the inflatable structure comprises metal.

20. The inflation module of claim 19, wherein a thickness of the metal of the inflatable structure is in the range of about 0.04 inches to about 0.06 inches.

21. The inflation module of claim 19, wherein the inflatable structure is disposed under a seat of the vehicle.

22. A method for lessening the risk of injury to an occupant in side-impact collisions using a the seat mounting structure comprising a linkage system, an inflation module, and a sensor system, the method comprising:

sensing an impending side impact;

actuating the inflation module to displace the seat mount; and

guiding the seat mount vertically up and laterally toward a centerline of the vehicle in such a manner that the seat travels in a generally curvilinear translation such that little or no tilting of the seat takes place.

23. The method of claim 22, further comprising stiffening a floor structure of the vehicle to resist intrusion in a side-impact, via inflation of an inflatable structure.

24. The method of claim 23, wherein the inflatable structure comprises a folded elongated metal inflatable structure.

25. The method of claim 23, further comprising inflating a side airbag.