US 11,814,001 B2
Knee airbag, knee airbag module and steering assembly
Andreas Engel, Dachau (DE); Ralf Zauritz, Holzkirchen (DE); and Florian Hanke, Röhrmoss (DE)
Assigned to Autoliv Development AB, Vargarda (SE)
Appl. No. 17/596,865
Filed by Autoliv Development AB, Vargarda (SE)
PCT Filed May 12, 2020, PCT No. PCT/EP2020/063168
§ 371(c)(1), (2) Date Dec. 20, 2021,
PCT Pub. No. WO2020/259910, PCT Pub. Date Dec. 30, 2020.
Claims priority of application No. 10 2019 117 216.0 (DE), filed on Jun. 26, 2019.
Prior Publication US 2022/0306035 A1, Sep. 29, 2022
Int. Cl. B60R 21/206 (2011.01); B60R 21/231 (2011.01); B60R 21/00 (2006.01)
CPC B60R 21/206 (2013.01) [B60R 21/231 (2013.01); B60R 2021/0051 (2013.01); B60R 2021/23169 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A knee airbag, comprising:
a first wall extending from an upper end and having a first outer surface serving as an impact surface configured to protect a knee-shin-area of an occupant when the airbag is fully deployed,
a second wall extending from a rear end adjacent or identical to the upper end of the first wall and having a second outer surface, said second wall comprising a first section, a second section and a groove section being positioned between the first section and the second section such that the second outer surface shows a groove, wherein the depth of the groove decreases towards the rear end of the second wall,
wherein the first wall and the first and second sections of the second wall enclose an angle between 20° and 80°.