Device and method for occupant protection in vehicles

• US 6,092,836 A
• Filed: 05/11/1998
• Issued: 07/25/2000
• Est. Priority Date: 09/04/1995
• Status: Expired due to Fees

• Current Assignee: AB Volvo
• Original Assignee: AB Volvo
• Inventors: Saslecov, Venti
• Primary Examiner(s): Rice, Kenneth R.
• Application Number:
  US09/029,389
• Time in Patent Office: 806 Days
• Field of Search: 280/730.1, 280/753, 280/732, 280/751
• US Class Current: 280/730.1
• CPC Class Codes: B60R 2021/23169 specially adapted for knee protection
• CPC Class Codes: B60R 2021/23509 Fabric
• CPC Class Codes: B60R 2021/23523 Composite coated fabric B60R2021/23514
• CPC Class Codes: B60R 21/045 associated with the instrument panel or dashboard
• CPC Class Codes: B60R 21/206 in the lower part of dashboards, e.g. for protecting the knees
• CPC Class Codes: B60R 21/23 Inflatable members B60R21/18 takes precedence; connection to inflation fluid source retainers B60R21/217
• CPC Class Codes: B60R 21/235 characterised by their material

Abstract

Apparatus and methods are disclosed for protecting a passenger in a vehicle including a dashboard. The apparatus includes an airbag disposed in the dashboard at a location such that upon inflation the airbag is disposed in front of the legs and knees of the passenger, a sensor for detecting a condition of the vehicle corresponding to a collision, and for inflating the airbag upon detecting that condition, and a load distributor disposed at a location proximate to the dashboard and juxtaposed with the legs and knees of the passenger whereby upon inflation of the airbag the load distributor and the airbag cooperate to distribute a load with respect to the passenger.

Claims

1. Apparatus for protecting a passenger in a vehicle including a dashboard, said apparatus comprising an air bag disposed within a substantially enclosed space within said dashboard, said substantially enclosed space comprising a glove compartment, whereby said air bag is inflatable within said substantially enclosed space so that upon its inflation said air bag is to be disposed in front of the legs and knees of said passenger, a sensor for detecting a condition of said vehicle corresponding to a collision, inflation means for inflating said air bag upon detecting of said condition by said sensor, and load distribution means disposed at a location proximate to said dashboard dan juxtaposed with said legs and knees of said passenger whereby upon inflation of said air bag said load distribution means and said air bag cooperate to distribute a load with respect to said passenger.

2. The apparatus of claim 1, wherein said air bag is expandable in a direction substantially parallel to said dashboard and extending substantially longitudinally with respect to said vehicle.

3. The apparatus as claimed in claim 1, wherein said glove compartment includes a glove compartment lid, and wherein said load distribution means comprises at least a portion of said glove compartment lid.

4. The apparatus as claimed in claim 3, where in said glove compartment lid comprises a first layer and a second layer, and wherein said first and second layers are selected from the group consisting of plastic and metal.

5. Apparatus for protecting a passenger in a vehicle including a dashboard having a glove compartment with a glove compartment lid, said apparatus comprising an air bag disposed in said dashboard in front of the legs and knees of said passenger, a sensor for detecting a condition of said vehicle corresponding to a collision, inflation means for inflating said air bag upon detecting of said condition by said sensor, and load distribution means juxtaposed with said legs and knees of said passenger, said load distribution means comprising at least a portion of said glove compartment lid whereby upon inflation of said air bag said load distribution means and said air bag cooperate to distribute a load with respect to said passenger.

6. The apparatus as claimed in claim 5, wherein said air bag is expandable in a direction substantially parallel to said dashboard and extending substantially longitudinally with respect to said vehicle.

7. The apparatus as claimed in claim 5, wherein said dashboard includes an elongated opening substantially perpendicular to the longitudinal direction of said vehicle, and wherein upon inflation said air bag expands through said elongated opening.

8. The apparatus as claimed in claim 7 wherein said dashboard includes a lid covering said elongated opening prior to inflation of said air bag, said lid being adapted to open upon inflation of said air bag.

9. The apparatus as claimed in claim 8, wherein said lid is pivotally mounted on said dashboard.

10. The apparatus as claimed in claim 5, where in said glove compartment lid comprises a first, layer and a second layer, and wherein said first and second layers are selected from the group consisting of plastic and metal.

11. Apparatus for protecting a passenger in a vehicle including a dashboard, said apparatus comprising an air bag disposed in said dashboard at a location whereby upon its inflation said air bag is disposed in front of the legs and knees of said passenger, a sensor for detecting a condition of said vehicle corresponding to a collision, inflation means for inflating said air bag upon detecting of said condition by said sensor, and load distribution means disposed at a location proximate to said dashboard and juxtaposed with said legs and knees of said passenger whereby upon inflation of said air bag said load distribution means and said air bag cooperate to distribute a load with respect to said passenger, wherein said load distribution means comprises a predetermined portion of said air bag, said predetermined portion of said air bag having a first degree of stiffness, and said remainder of said air bag having a second degree of stiffness, said first degree of stiffness being greater than said second degree of stiffness.

12. The apparatus as claimed in claim 11, wherein said air bag is expandable in a direction that is substantially parallel to said dashboard and extending substantially longitudinally with respect to said vehicle.

13. The apparatus as claimed in claim 11, wherein said load distribution means is fixedly attached to said air bag.

14. The apparatus as claimed in claim 11, wherein said predetermined portion of said air bag comprises a woven portion of said air bag.

15. The apparatus as claimed in claim 11, wherein said predetermined portion of said air bag comprises a plurality of reinforcement fibers woven into a portion of said air bag.

16. Apparatus for protecting a passenger in a vehicle including a dashboard having a substantially enclosed space including an openable lid, said dashboard including a glove compartment including a glove compartment lid, said apparatus comprising an air bag disposed in said dashboard at a location whereby upon inflation said air bag is disposed in front of the legs and knees of said passenger, a sensor for detecting a condition of said vehicle corresponding to a collision, inflation means for inflating said air bag upon detecting of said condition by said sensor, said air bag being disposed within said substantially enclosed space prior to inflation thereof and load distribution means disposed at a location proximate to said dashboard and juxtaposed with said legs and knees of said passenger wherein said load distribution means comprises at least a portion of said glove compartment lid.

17. The apparatus of claim 16, said load distribution means having a first degree of stiffness, and said air bag having a second degree of stiffness, said first degree of stiffness being greater than said second degree of stiffness.

18. A method for protecting a passenger in a vehicle including a dashboard and an air bag, said method comprising disposing said air bag within a substantially enclosed space within said dashboard, said enclosed space comprising a glove compartment, detecting a condition of said vehicle corresponding to a collision, inflating said air bag within said enclosed space upon detecting said condition of said vehicle into a location substantially in front of the legs and knees of said passenger, and disposing load distribution means substantially between said air bag and said passenger whereby the load acting on said air bag by said passenger is absorbed and distributed thereby.

19. The method of claim 18 wherein inflation of said air bag takes place within said substantially enclosed space.

20. A method for protecting a passenger in a vehicle including a dashboard and an air bag disposed in said dashboard, said method comprising detecting a condition of said vehicle corresponding to a collision, inflating said air bag upon detecting said condition of said vehicle into a location substantially in front of the legs and knees of said passenger, and disposing load distribution means substantially between said air bag and said passenger whereby the load acting on said air bag by said passenger is absorbed and distributed thereby, wherein said load distribution means comprises a predetermined portion of said air bag, said predetermined portion of said air bag having a first degree of stiffness, and said remainder of said air bag having a second degree of stiffness, said first degree of stiffness being greater than said second degree of stiffness.

21. The method of claim 20 wherein said substantially enclosed space includes an openable lid juxtaposed with said passenger.