Patent ID: 7963550
Filing Date: 2011-06-21
Classification: B60R

Abstract:
1. A knee airbag installed at a lower crash panel and having an inflator installed at a predetermined position thereof, the knee airbag comprising a front panel facing an occupant and a rear panel facing the front panel, the front panel having at least one wrinkle part folded in an upper portion thereof in a vertical direction to have an airbag deployment shape in which an upper part of the airbag is expanded more than a lower part of the airbag, the knee airbag further comprising a plurality of tethers connected inside the front and rear panels in different lengths, wherein the plurality of tethers includes a first tether, a second tether, and a third tether, and wherein the first tether has a smaller width than that of the second tether, and the third tether has a larger width than that of the second tether, and angles between the rear panel and each tether are different from each other when the airbag is deployed, and wherein the first tether has a smaller angle relative to the rear panel than that of the second tether and the third tether has a larger angle relative to the rear panel than that of the second tether.