KNEE AIRBAG DEVICE FOR VEHICLE

摘要

Axial forces on the shins of small-bodied occupants and medium-bodied occupants may be suppressed or prevented, and protective performance of the knee areas of large-bodied occupants is assured. A vehicle knee airbag device (16) is equipped with a knee airbag main body portion (48) that is formed in a thin bag shape and that inflates and expands from below to above along a design surface of an instrument panel floor (14) when gas is supplied thereto. A protection portion (48B) of the knee airbag main body portion (48) has a size capable of covering both knees of an occupant, from small-bodied occupants (the two-dot chain lines) to large-bodied occupants (the one-dot chain lines). A U-shaped lower tether (56) is disposed in an upper portion of the interior of the protection portion (48B); vertical direction dividing portions (54A) of the lower tether (56) extend to the upward side from portions that correspond with both knees of medium-bodied occupants (the solid lines).