Assembly with an instrument panel for a motor vehicle and a knee airbag

• US 9,022,416 B2
• Filed: 03/18/2013
• Issued: 05/05/2015
• Est. Priority Date: 02/25/2008
• Status: Active Grant

• Current Assignee: Autoliv Development AB (Autoliv Incorporated)
• Original Assignee: Autoliv Development AB (Autoliv Incorporated)
• Inventors: Wallat, Nico, Wagner, Marcus
• Primary Examiner(s): Beck, Karen
• Application Number:
  US13/845,567
• Publication Number:
  US 20130221639A1
• Time in Patent Office: 778 Days
• Field of Search: 280/730.2, 280/728.3, 280/730.1, 280/728.2, 280/732
• US Class Current: 280/728.2
• CPC Class Codes: B60R 2021/23169 specially adapted for knee protection
• CPC Class Codes: B60R 21/206 in the lower part of dashboards, e.g. for protecting the knees

Abstract

An airbag housing is carried on a formed part extending from a lower section of an instrument panel for a motor vehicle. The formed part forms at least a front section of an upper wall of a footwell assigned to the vehicle occupants. A knee airbag is disposed in the airbag housing.

Claims

1. An assembly for a motor vehicle comprising:

an instrument panel;

a formed part extended from a lower section of the instrument panel;

a housing carried on the formed part; and

an airbag in the housing when stored and which on activation is inflated between the lower section of the instrument panel and a knee-shin area of a vehicle occupant to be protected;

wherein the formed part is connected with the instrument panel; and

wherein the airbag is configured to include a forward end and a rearward end which both are introduced into a footwell of the motor vehicle at a point forward of a forward edge of the instrument panel and upon inflation the forward end is disposed immediately below the housing.

3. The assembly according to claim 1, wherein the formed part is selectively connected with the forward edge of the instrument panel.

4. The assembly according to claim 1, wherein the formed part is latched together with the forward edge of the instrument panel by clip connections.

5. The assembly according to claim 1, wherein the formed part is selected from a group including an injection moulded part and a deep-drawn part of plastic.

6. The assembly according to claim 1, wherein the housing is an integral part of the formed part.

7. The assembly according to claim 1, wherein the housing is a separate element which is connected with the formed part.

8. The assembly of claim 1, wherein the airbag is configured upon inflation to include an upper side in communication with the housing.

9. The assembly of claim 3, wherein the airbag is configured upon inflation such that the rearward end is disposed higher than the forward end.

10. The assembly of claim 1, wherein the airbag is configured upon inflation to have a length between a forward end and a rearward end, the length being greater than a height generally perpendicular to the length.

13. The assembly of claim 6, wherein the airbag is configured upon inflation to include an upper side in communication with the housing.

14. The assembly of claim 7, wherein the airbag is configured upon inflation to include a forward end and a rearward end, the forward end disposed immediately below the housing.

15. The assembly of claim 1, wherein the airbag is configured upon inflation such that the rearward end is disposed higher than the forward end.

16. The assembly of claim 7, wherein the airbag is configured upon inflation to have a length between a forward end and a rearward end, the length being greater than a height generally perpendicular to the length.

17. The assembly of claim 1, wherein a forward end of the airbag is disposed immediately below the housing.

2. An assembly for a motor vehicle comprising:

an instrument panel having a lower side that terminates at a forward edge;

a footwell cladding defining a first portion of a ceiling of a footwell of the motor vehicle and terminating at a rearward edge, an opening defined between the forward edge of the instrument panel and the rearward edge of the footwell cladding;

a first formed part sized and shaped to be selectively insertable into the opening so as to extend in a direction toward a front of the motor vehicle from the forward edge of the instrument panel to the rearward edge;

a housing carried by the first formed part, the housing defining an airbag exit opening; and

an airbag in the housing when stored and which on activation extends through the exit opening, into the footwell from a point forward of the forward edge of the instrument panel and is inflated from the point forward of the forward edge of the instrument panel to a position between the lower side of the instrument panel and a knee-shin area of a vehicle occupant to be protected

wherein the airbag is configured to include a forward end and a rearward end which both are introduced into the footwell at the point forward of the forward edge of the instrument panel and upon inflation the forward end is disposed immediately below the housing.

11. The assembly of claim 2, wherein a forward end of the airbag is disposed immediately below the housing.

12. An assembly for a motor vehicle having a seat with a headrest comprising:

an instrument panel for generally facing a vehicle occupant, the instrument panel having a lower side that terminates at a forward edge;

a footwell cladding defining a first portion of a ceiling of a footwell of the motor vehicle, the first portion terminating at a rearward edge that is spaced apart from the forward edge so as to define a gap between the instrument panel and the footwell cladding;

a first formed part sized and shaped to be selectively insertable into the gap so as to forwardly extend from the forward edge of the instrument panel toward the rearward edge of the cladding, the first formed part defining a second portion of the ceiling of the footwell of the motor vehicle, the first formed part defining an integrally formed housing extending from an upper side thereof and defining an exit opening; and

an airbag normally stored in the integrally formed housing and which upon activation extends through the exit opening, into the footwell and is inflated between the lower side of the instrument panel and a knee-shin area of the vehicle occupant,

wherein an imaginary straight line extends from any first point on the headrest to any second point on the assembly such that the imaginary line always intersects the instrument panel.

18. An assembly in combination with a motor vehicle having an instrument panel and a seat with a headrest comprising:

a first formed part configured to be selectively disposed relative to the instrument panel so as to extend in a direction toward a front of the motor vehicle from a forward edge of the instrument panel, the first formed part defining at least a portion of a ceiling of a footwell of the motor vehicle;

a housing carried by the first formed part and defining an exit opening; and

an airbag normally stored in the housing, extendable through the exit opening into the footwell from a point forward of the forward edge of the instrument panel, and inflatable from the point forward of the forward edge of the instrument panel to a position between a lower side of the instrument panel and a knee-shin area of a vehicle occupant to be protected;

wherein the airbag is configured to include a forward end and a rearward end which both are introduced into the footwell at a point forward of a forward edge of the instrument panel and upon inflation the forward end is disposed immediately below the housing, and

wherein an imaginary straight line extends from any first point on the headrest to any second point on the assembly such that the imaginary line always intersects the instrument panel.

20. The assembly of claim 18, further comprising a capture strap coupled to the airbag about an exterior thereof such that the capture strap runs outside the airbag and facilitates positioning the airbag in the knee-shin area.

19. A motor vehicle having an occupant compartment, the motor vehicle comprising:

an airbag subassembly inserted into an opening in a footwell of the motor vehicle, the airbag subassembly including an airbag and a housing defining an exit opening for the airbag,

the airbag disposed in the housing when stored and which on activation extends through the exit opening, into the footwell from a point forward of a forward edge of an instrument panel and is inflated from the point forward of the forward edge of the instrument panel to a position between the instrument panel and a knee-shin area of a vehicle occupant to be protected; and

an occupant seat including a headrest,

wherein an imaginary straight line extends from any first point on the headrest to any second point on the subassembly such that the imaginary line always intersects the instrument panel.