Abstract: The invention relates to an airbag arrangement for a motor vehicle, with—an airbag (1), the airbag (1) having a first cushion layer (1.1) and a second cushion layer (1.2) opposite to the first cushion layer (1.1), and—at least one tether arrangement (2), the tether arrangement being connected to the airbag (1) and being connectable with one end to the motor vehicle outside the airbag (1).

Abstract: A motor vehicle and a method secure a passenger in the motor vehicle in a collision. The motor vehicle has a seat including a seat body, which forms a seat surface, and a backrest connected to the seat body. An inertial force acting on the passenger in a collision is transmitted by a seatbelt arrangement to the backrest in such a manner that the latter pivots forwards relative to the seat body counter to the restoring effect of an elastic and/or plastic deformation of at least part of the backrest. A force which counteracts the pivoting-forwards action is generated by a force generator, and transmitted to the backrest, and/or the maximum pivoting path of the backrest is limited by a limiting device in that, when a predetermined reference acceleration is present, a deviation between a present pivoting path of the backrest and a predetermined reference pivoting path is minimized.

Abstract: An airbag unit and method for folding up a driver's airbag, which has an insertion opening for a gas generator and, after activation of the gas generator, is unfolded away therefrom in the direction of a user. The airbag is folded around an imaginary center in alternating directions along first folding lines running around the imaginary center and is compressed in the direction of the center. At least one partial region of the airbag is rolled up or folded over onto the side towards the insertion opening.

Abstract: A knee airbag having an inlet opening (6) for deployment gas from a gas generator (4) for flowing into a first chamber (10), at least one second chamber (20, 30) adjacent to the first chamber (10), which second chamber (20, 30) is separated from the first chamber by at least one dividing wall (25), wherein between the first chamber (10) and the second chamber (20, 30) at least one closable overflow opening (40) is provided, through which deployment gas can flow from the first chamber (10) into the second chamber (20, 30), wherein at least one closing device (50 for the overflow opening (40), or the overflow opening (40), is associated with the penetration region of the knees (5).

Abstract: An airbag unit and method for folding up a driver's airbag, which has an insertion opening for a gas generator and, after activation of the gas generator, is unfolded away therefrom in the direction of a user. The airbag is folded around an imaginary center in alternating directions along first folding lines running around the imaginary center and is compressed in the direction of the center. At least one partial region of the airbag is rolled up or folded over onto the side towards the insertion opening.

Abstract: A knee airbag having an inlet opening (6) for deployment gas from a gas generator (4) for flowing into a first chamber (10), at least one second chamber (20, 30) adjacent to the first chamber (10), which second chamber (20, 30) is separated from the first chamber by at least one dividing wall (25), wherein between the first chamber (10) and the second chamber (20, 30) at least one closable overflow opening (40) is provided, through which deployment gas can flow from the first chamber (10) into the second chamber (20, 30), wherein at least one closing device (50 for the overflow opening (40), or the overflow opening (40), is associated with the penetration region of the knees (5).

Abstract: An airbag module for installation in a motor vehicle has an airbag made of an airbag fabric and folded up before being triggered by an inflation device. The airbag fabric has at least one slit forming an adaptive ventilation opening and a retaining strap, which at one end is held releasably on a retainer on the airbag module and at the other end is connected fixedly to the airbag. The slit (11) is cut into the airbag fabric and has two ends configured to prevent the slit (11) from tearing when pressure is applied. The retaining strap is arranged on the inside of the airbag and is guided through a securing loop (17) attached to the airbag fabric opposite the fixed end (14) of the retaining strap across the slit (11) toward the retainer.

Abstract: A front passenger airbag (5) is described for arrangement in the instrument panel (20) of a motor vehicle. It has an airbag envelope (10) having an impact area (11) and lateral surfaces extending from the impact area (11). In order to use small gas generators and to reduce the danger for a passenger in a non-standard seating position, the impact area (11) is nearly exclusively allocated to the front passenger's (I) head or head and shoulder area, the impact area (11) having a concave shape when the airbag envelope (10) is fully expanded and free of external forces, such that a left and right section of the impact area (11) respectively extend farther into the interior of the motor vehicle than a central section.

Abstract: An airbag for a vehicle occupant protective system comprises an inflatable cushion, a cinch tube circumventing a vent aperture disposed in the cushion, and a draw element guided in a circumventing channel of said cinch tube and being coupled to a surface of said cushion such that deployment of said cushion causes said draw element to contract said cinch tube. The airbag comprises a contraction limiting arrangement adapted to limit the contraction of said cinch tube by said draw element to a predetermined minimum free diameter d of at least 20% relative to the free diameter D of the open cinch tube.

Abstract: A front passenger airbag (5) is described for arrangement in the instrument panel (20) of a motor vehicle. It has an airbag envelope (10) having an impact area (11) and lateral surfaces extending from the impact area (11). In order to use small gas generators and to reduce the danger for a passenger in a non-standard seating position, the impact area (11) is nearly exclusively allocated to the front passenger's (I) head or head and shoulder area, the impact area (11) having a concave shape when the airbag envelope (10) is fully expanded and free of external forces, such that a left and right section of the impact area (11) respectively extend farther into the interior of the motor vehicle than a central section.

Abstract: An airbag module for installation in a motor vehicle has an airbag made of an airbag fabric and folded up before being triggered by an inflation device. The airbag fabric has at least one slit forming an adaptive ventilation opening and a retaining strap, which at one end is held releasably on a retainer on the airbag module and at the other end is connected fixedly to the airbag. The slit (11) is cut into the airbag fabric and has two ends configured to prevent the slit (11) from tearing when pressure is applied. The retaining strap is arranged on the inside of the airbag and is guided through a securing loop (17) attached to the airbag fabric opposite the fixed end (14) of the retaining strap across the slit (11) toward the retainer.

Abstract: A safety arrangement for a motor vehicle is disclosed which comprises an air-bag module (1) having an inflatable air-bag (5) in fluid communication with an inflator (4). An internal tether (14) is provided having a first end (15) and a second end (16). The first end (15) of the tether is connected to a restrainable part (13) of the air-bag, whilst the second end (16) of the tether is free from connection with the air-bag but is initially trapped between the folds or rolls of an initially folded or rolled part of the air-bag. The arrangement is such that, upon inflation of the air-bag, the tether serves to restrain the restrainable part (13) of the air-bag until such time as the folded or rolled part of the air-bag (9) becomes sufficiently unfolded or unrolled to release the second end (16) of the tether (14).

Abstract: An air-bag housing comprising a rectangular frame (1) defining an opening and having a mounting arrangement in the form of flanges (7) to mount the frame in position within a motor vehicle. The frame supports a housing-forming element (21) formed, for example, of fabric. This forms a housing having walls (71, 72) and a floor. The walls (71, 72) are formed seamlessly by folding the fabric in half about a fold-line, and tucking one end of the fold-line into the other end of the fold-line, and inserting the frame between the pieces of fabric to lie adjacent the fold-line. The floor is formed by a plurality of floor-forming tabs (25, 26, 35, 36 etc) carried by the fabric forming the side-walls of the housing. The tabs are folded inwardly to at least partly overlie each other and are secured in position to form the floor of the housing by studs (15, 16, 17, 18) provided on the inflator which pass through co-aligned apertures (27, 30, 38, 39) in the floor-forming tabs (25, 26, 35, 36 etc).

Abstract: An airbag for a vehicle occupant protective system comprises an inflatable cushion, a cinch tube circumventing a vent aperture disposed in the cushion, and a draw element guided in a circumventing channel of said cinch tube and being coupled to a surface of said cushion such that deployment of said cushion causes said draw element to contract said cinch tube. The airbag comprises a contraction limiting arrangement adapted to limit the contraction of said cinch tube by said draw element to a predetermined minimum free diameter d of at least 20% relative to the free diameter D of the open cinch tube.

Abstract: An air-bag housing comprising a rectangular frame (1) defining an opening and having a mounting arrangement in the form of flanges (7) to mount the frame in position within a motor vehicle. The frame supports a housing-forming element (21) formed, for example, of fabric. This forms a housing having walls (71, 72) and a floor. The walls (71, 72) are formed seamlessly by folding the fabric in half about a fold-line, and tucking one end of the fold-line into the other end of the fold-line, and inserting the frame between the pieces of fabric to lie adjacent the fold-line. The floor is formed by a plurality of floor-forming tabs (25, 26, 35, 36 etc) carried by the fabric forming the side-walls of the housing. The tabs are folded inwardly to at least partly overlie each other and are secured in position to form the floor of the housing by studs (15, 16, 17, 18) provided on the inflator which pass through co-aligned apertures (27, 30, 38, 39) in the floor-forming tabs (25, 26, 35, 36 etc).

Abstract: A safety arrangement for a motor vehicle is disclosed which comprises an air-bag module (1) having an inflatable air-bag (5) in fluid communication with an inflator (4). An internal tether (14) is provided having a first end (15) and a second end (16). The first end (15) of the tether is connected to a restrainable part (13) of the air-bag, whilst the second end (16) of the tether is free from connection with the air-bag but is initially trapped between the folds or rolls of an initially folded or rolled part of the air-bag. The arrangement is such that, upon inflation of the air-bag, the tether serves to restrain the restrainable part (13) of the air-bag until such time as the folded or rolled part of the air-bag (9) becomes sufficiently unfolded or unrolled to release the second end (16) of the tether (14).