Knee protection airbag device

摘要

A knee protecting airbag device comprises an airbag (55), an inflator (47), a case (13) and an airbag cover (30) to be assembled with the case. The case houses the airbag and the inflator, and is fixed to the side of the vehicular body with its rear side open. The airbag cover includes an upward-openable door (44) which closes the opening of the case and opens when the airbag expands and inflates.
As a result of the shape of the instrument panel, when the door is in the closed position, one side of the door may be closer to the vehicle occupant than the other. To avoid contact between the door and the vehicle occupant upon deployment of the airbag device, the sides of the door are of different lengths, the side closest to the occupant being shorter than the side farthest away.