A knee airbag arrangement for a vehicle. The knee airbag arrangement includes an inflatable airbag and an external tether. The airbag is adapted to be inflated to a position between an instrument panel of the vehicle and a knee/shin region of a vehicle occupant. The knee airbag is adapted to form a first deployment mode or a second deployment mode when in a deployed state. The external tether controls deployment of the airbag to the second deployment mode. The depth (D.sub.2) of the airbag in the second deployment mode is greater than a depth (D.sub.1) of the knee airbag in the first deployment mode. A depth of the airbag in a deployed state is a greatest extent of the airbag perpendicular to the instrument panel in the knee/shin region.

A knee airbag arrangement for a vehicle. The knee airbag arrangement includes an inflatable airbag and an external tether. The airbag is adapted to be inflated to a position between an instrument panel of the vehicle and a knee/shin region of a vehicle occupant. The knee airbag is adapted to form a first deployment mode or a second deployment mode when in a deployed state. The external tether controls deployment of the airbag to the second deployment mode. The depth (D.sub.2) of the airbag in the second deployment mode is greater than a depth (D.sub.1) of the knee airbag in the first deployment mode. A depth of the airbag in a deployed state is a greatest extent of the airbag perpendicular to the instrument panel in the knee/shin region.

A knee airbag arrangement for a vehicle. The knee airbag arrangement includes an inflatable airbag. The airbag is adapted to be inflated to a position between an instrument panel of the vehicle and a knee/shin region of a vehicle occupant. A depth (D.sub.1, D.sub.2) of the airbag in a deployed state is a greatest extent of the airbag perpendicular to the instrument panel in the knee/shin region. The airbag is adapted to form a first deployment mode or a second deployment mode when in a deployed state. The depth of the airbag in the second deployment mode is greater than a depth of the airbag in the first deployment mode.

A knee airbag arrangement for a vehicle. The knee airbag arrangement includes an inflatable airbag. The airbag is adapted to be inflated to a position between an instrument panel of the vehicle and a knee/shin region of a vehicle occupant. A depth (D.sub.1, D.sub.2) of the airbag in a deployed state is a greatest extent of the airbag perpendicular to the instrument panel in the knee/shin region. The airbag is adapted to form a first deployment mode or a second deployment mode when in a deployed state. The depth of the airbag in the second deployment mode is greater than a depth of the airbag in the first deployment mode.

A method for folding a knee airbag may include: folding both sides of an airbag cushion a plurality of times, and fixing the folded portion of the airbag cushion; forming a roll folding part by rolling one side of the airbag cushion of which both sides are folded a plurality of times; and folding the other side of the airbag cushion toward the roll folding part, with the roll folding part formed at the one side of the airbag cushion, and fixing the other side of the airbag cushion.

A method for folding a knee airbag may include: folding both sides of an airbag cushion a plurality of times, and fixing the folded portion of the airbag cushion; forming a roll folding part by rolling one side of the airbag cushion of which both sides are folded a plurality of times; and folding the other side of the airbag cushion toward the roll folding part, with the roll folding part formed at the one side of the airbag cushion, and fixing the other side of the airbag cushion.

An airbag includes a bag body that includes a first panel and a second panel which are opposed to each other, a partitioning tether that is disposed in such a manner as to partition an interior of the bag body, a communication hole that is formed in the tether for providing gas communication in the interior of the bag body, and first and second joints that respectively join first and second edges of the tether to the first and second panels of the bag body. The communication hole has a generally rectangular contour which has two corners in a vicinity of each of the first and second edges of the tether. In both of the first and second edges of the tether, the corners of the communication hole are disposed closer to the first or second edge of the partitioning tether than a corresponding one of the joints.

An airbag includes a bag body that includes a first panel and a second panel which are opposed to each other, a partitioning tether that is disposed in such a manner as to partition an interior of the bag body, a communication hole that is formed in the tether for providing gas communication in the interior of the bag body, and first and second joints that respectively join first and second edges of the tether to the first and second panels of the bag body. The communication hole has a generally rectangular contour which has two corners in a vicinity of each of the first and second edges of the tether. In both of the first and second edges of the tether, the corners of the communication hole are disposed closer to the first or second edge of the partitioning tether than a corresponding one of the joints.

A restraint system for a vehicle includes an instrument panel and an airbag supported by the instrument panel. The restraint system includes a right deflector supported by the instrument panel adjacent the airbag. The right deflector is deployable between a retracted position and a deployed position. The restraint system includes a left deflector supported by the instrument panel adjacent the airbag opposite the right deflector in a cross-vehicle direction. The left deflector is deployable between a retracted position and a deployed position. The restraint system includes a first pyrotechnic device coupled to the right deflector and a second pyrotechnic device coupled to the left deflector.

A restraint system for a vehicle includes an instrument panel and an airbag supported by the instrument panel. The restraint system includes a right deflector supported by the instrument panel adjacent the airbag. The right deflector is deployable between a retracted position and a deployed position. The restraint system includes a left deflector supported by the instrument panel adjacent the airbag opposite the right deflector in a cross-vehicle direction. The left deflector is deployable between a retracted position and a deployed position. The restraint system includes a first pyrotechnic device coupled to the right deflector and a second pyrotechnic device coupled to the left deflector.