| 摘要 |
In a knee airbag device for a vehicle, which has upper and lower tethers that extend in a vehicle width direction and regulate a bag thickness of an airbag, and in which gas from an inflator is supplied between the upper and lower tethers, it is aimed to make a flow of the gas toward an upper portion and a lower portion from between the upper and lower tethers at the inside of the knee airbag smoother, and to improve deployability of the knee airbag in a vehicle vertical direction. Upper and lower tethers 16 and 18 are arranged to be separated from each other in the vehicle vertical direction and are formed so that a vertical clearance therebetween increases approaching both vehicle width direction end portions 16A and 18A thereof. When the gas is supplied between the upper and lower tethers 16 and 18, the gas spreads to both vehicle width direction sides along the tethers 16 and 18 and smoothly moves around into an upper portion 14A and a lower portion 14B of a knee airbag 14 from both of the end portions 16A and 18A of the tethers 16 and 18. |
