| 摘要 |
[PROBLEMS] To improve expansion performance of an airbag. [MEANS FOR SOLVING PROBLEMS] A knee-restraining airbag device (B) has an inflator (11), the airbag (12), an aesthetically designed cover (13) installed at the lower part of an interior article ahead, in the front-rear direction of a vehicle, of an seated occupant, and a case (14) installed on the opposite side of the aesthetically designed cover (13) from the seated occupant and forming a space (15). In a cross section of the space (15) taken in the front-rear direction of the vehicle, a cross section of an airbag receiving section (15b) in the space (15) has a vertically elongated shape. The airbag (12) is adapted such that, when it is placed in the airbag receiving section (15b), at least a part of the airbag (12) is positioned in a region closer to the occupant than a line (L) interconnecting the upper end of the case (14), which is in a state installed on the aesthetically designed cover (13), and an end surface that is located at the lower end of the case (14) and is closer to the aesthetically designed cover (13). As a result, the airbag (12) is positioned closer to the cover (13) at its surface which forms the space (15). [EFFECT] Expansion performance of the airbag is improved. When the device is used for a front passenger seat, a sufficient glove box capacity is secured and comfortable space is obtained for the passenger.
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