An OPW airbag having warp and weft threads woven together in at least three woven fabric layers: a lower fabric layer, an upper fabric layer, and a middle fabric layer therebetween. The weft threads of the middle fabric layer emerge from the middle fabric layer in a first partial region of the airbag and are tied partially to the upper fabric layer and partially to the lower fabric layer. The warp threads of the middle fabric layer emerge from the middle fabric layer in the first partial region of the airbag and float freely between the lower fabric layer and the upper fabric layer. The weft and warp threads of the middle fabric layer are incorporated into the lower fabric layer or into the upper fabric layer in a second partial region of the airbag or are tied to the lower or upper fabric layer at a few attachment points.

An OPW airbag has warp and weft threads woven together in a lower fabric layer, an upper fabric layer and a middle fabric layer arranged therebetween. The airbag has, arranged along a longitudinal axis, front, middle and rear portions. A generator mouth and an inflow region are in the front portion. Upper and lower main chambers are in the middle portion. A first plurality of lower stiffening chambers is in the rear portion between the middle and lower fabric layers. A second plurality of upper stiffening chambers is in the rear portion between the middle and upper fabric layers. At least one upper stiffening chamber, which is narrower compared to the lower stiffening chamber, is associated with each lower stiffening chamber. The lower stiffening chambers are each spaced apart by lower woven seams. Bridge chambers, which cover the lower woven seams, are arranged between the middle and upper fabric layers.

A curtain airbag of a vehicle is provided adjacent to the roof of the vehicle in a folded state, is configured to have a shape that unfolds downward between an inner side surface of the vehicle and an occupant when the vehicle crashes, and includes an outer panel that proceeds toward the side surface of the vehicle and an inner panel that proceeds toward the occupant upon expansion. The curtain airbag further includes a head support part configured to have a shape in which an expansion thickness, which is defined by the outer panel and the inner panel in a portion that the head of the occupant contacts due to the car crash, gradually increases toward the front of the vehicle, so as to prevent the head of the occupant from rotating while moving toward the front of the vehicle. The curtain airbag may effectively stop the head of the occupant from rotating while moving toward the front of the vehicle during a vehicle crash.

An article is described that includes at least one fibrous support surface coated by at least two successive layers including: an inner layer, in contact with the fibrous support, which is a coating including a silicone elastomer, polyurethane or silicone-polyurethane; and a topcoat outer layer, in contact with the inner layer, which is a coating obtained by crosslinking a composition described herein. The first layer, that is in contact with the fibrous support, is a layer based on a silicone elastomer, polyurethane or silicone-polyurethane composition that was crosslinked. The second layer, that is in contact with the first layer, is a layer obtained by crosslinking as described herein.

Methods for production of automobile airbags with decreased air leakage and an increased duration of their inflated state, as well as airbags produced in accordance with these methods are provided.

A method for manufacturing a one-piece woven (OPW) air bag includes providing yarns having a spin finish and warping the yarns on at least one beam of a loom. The yarns are simultaneously woven into a fabric air bag structure having two layer portions defining an inflatable volume and single layer portions forming seams delimiting the inflatable volume. The air bag structure is coated to cover the spin finish. The coated air bag structure is cut to define the one-piece woven air bag.

The invention relates to a one-piece woven airbag, in particular for vehicle restraint systems, with an upper fabric and a lower fabric which are joined together in a single-ply seam area forming the border of the airbag, with tether threads which are woven partially into the upper fabric and partially into the lower fabric and float there between over a defined length, which is characterized by upper limiting threads which are woven into the upper fabric and/or lower limiting threads which are woven into the lower fabric, the limiting threads between upper fabric and lower fabric floating over a defined number of floating tether threads and being attached to attachment points of their fabric layer.

An airbag package includes a one-piece woven airbag in a folded shape, a plurality of markers that are formed on the airbag, and a plurality of tape members that are bound around the airbag at locations of the markers for keeping the folded shape of the airbag. Each of the markers is composed of a weave structure that is different from that of surroundings in the airbag.

Device for fixing a connection to an OPW airbag, with an expansion sleeve (2), with a plurality of expansion shells (4), and a mandrel (6) extending longitudinally through the expansion sleeve (2) having a stretching piece (8) arranged in the vicinity of the expansion shells (4), the outer diameter of which stretching piece is greater than the inner diameter of the expansion shells (4).

There is proposed a vehicle seat configured to support an occupant (42) in a sitting position, the seat comprising: a squab (27), a backrest (28), and an airbag unit. The airbag unit comprises an inflatable airbag (1) provided in an initially rolled and/or folded airbag package (33), and an inflator (34) actuable to direct inflating gas into the airbag (1) to inflate the airbag into an inflated configuration. The airbag (1) comprises a pair of inflatable chambers (8, 9) which are physically connected to one another via a connecting interface (17), and are fluidly isolated from one another. The airbag unit is mounted and configured such that, upon actuation of said inflator (34) to inflate the airbag (1), said inflatable chambers (8, 9) inflate into respective deployed positions in which they: i) extend forwardly from respective opposing and laterally spaced-apart side regions of said backrest (28); and ii) extend upwardly, and laterally inwardly across an uppermost region of the seat towards said connecting interface (17), so as to thereby cooperate to define an inflated shroud around at least an uppermost region of the backrest (28) so as to extend over said sitting position and provide lateral protection to a said occupant (42) of the seat in said sitting position.