The invention relates to an inflatable airbag (1) for the protection of a person comprising a flexible sheath (10) which comprises at least two fingerlike extensions (11), wherein the flexible sheath (10) delimits a closed gas expansion chamber by the fingerlike extensions (11). The invention excels by the fact that the fingerlike extensions (11) are connected by at least one of being stitched, glued or welded to each other so that in an inflated state the airbag (1) takes a three-dimensional shape. The invention further relates to an airbag module, a vehicle occupant restraint system as well as vehicle parts comprising such airbag.

A method of weaving fabric for use in the manufacture of a vehicle air-bag includes: providing a weaving reed having a plurality of adjacent cells; introducing regular warp yarns into at least some of the cells; introducing an additional warp yarn into one of the cells that already includes a regular warp yarn; and carrying out a weaving process. In the weaving process, weft yarns are interwoven with the regular warp yarns and the additional warp yarn. The regular warp yarns each remain within one cell throughout the weaving process. The additional warp yarn is moved from a first cell to a second cell during the weaving process.

Provided is a bag body which has a flatter shape in its expanded state. This bag body has control yarn therein, which controls expansion. The control yarn includes: a first seam which extends from a non-expansion section to another non-expansion section within the bag body; a second seam which is a seam forming the fabric on one surface of the expansion section of the bag body, and is formed by being separated from the fabric on said one surface, threaded through the first seam, and turned back to the fabric on said one surface; and a third seam which is a seam forming the fabric on the other surface of the expansion section of the bag body, and is formed by being separated from the fabric on the other surface, threaded through the first seam, and turned back to the fabric on the other surface. A control seam group, which is configured from the first to third seams, includes: a first seam unit that is configured such that the two or more second seams alone are consecutively threaded through the first seam; and a second seam unit that is configured such that the two or more third seams alone are consecutively threaded through the first seam. The first and second seam units are alternately arranged in the direction in which the first seam extends.

Provided is a non-coated air bag fabric capable of solving problems regarding smoothness of a fabric surface while having low air permeability, and an air bag including the same. The non-coated air bag fabric according to the present invention includes a plurality of weft threads and a plurality of warp threads, in which the weft threads and the warp threads are constituted by multifilament threads in which polyethylene terephthalate fibers are used, the number of filaments in each of the multifilament threads is 122 to 242, and a warp/weft average MMD (a mean deviation of coefficient of friction) of a surface is 0.02 or less.

The purpose of the present invention is to provide an airbag-use non-coated woven fabric that achieves light in weight, compact in size, and low air permeability, and an airbag-use woven fabric having low air permeability, being flexible, and exhibiting good package ability without impairing mechanical strength of the woven fabric, and an airbag that uses the airbag-use woven fabric. The airbag-use woven fabric including a base fabric, wherein a yarn widening ratio of unwoven weaving yarn of fibers that constitute the base fabric is not less than 2.4 and not more than 3.5, or including single yarn fibers having a substantially triangular cross sectional shape and a modification degree of 1.3 to 2.2; having a tear strength of not less than 120 N; and having an air permeability under a pressure difference of 20 kPa of not more than 0.65 L/cm.sup.2/min.

A laminate film for a vehicle occupant protection device has at least one copolyester barrier layer and at least one copolyester adhesive layer connected to the at least one barrier layer.

An airbag base fabric satisfying characteristics A to D: (A) the cross-sectional deformation (WR), calculated by formula (1), of multifilament warp threads constituting a textile is 4.0 to 6.0,
WR=(Major axis of warp thread cross section in textile)/(Minor axis of warp thread cross section in textile)(1) (B) the cross-sectional deformation (FR), calculated by formula (2), of multifilament weft threads constituting the textile is 2.4 to 4.0,
FR=(Major axis of weft thread cross section in textile)/(Minor axis of weft thread cross section in textile)(2) (C) the single fiber cross-sectional shape of the multifilament threads constituting the textile is substantially circular, and (D) the multifilament threads constituting the textile have total fineness of 145 to 720 dtex, single fiber fineness of 2 to 7 dtex, and tensile strength of 6.5 to 8.5 cN/dtex.

An airbag fabric for an airbag comprises a mounting area (22) for mounting the airbag. The mounting area (22) includes a mounting hole (24), a load portion (26) which is adjacent to the mounting hole (24) in a load direction (B), and a transition portion (28) which is adjacent to the mounting hole (24) against the load direction (B). Furthermore, the load portion (26) and the transition portion (28) include different weaves. The fabric in the load portion (26) exhibits lower resistance to displacement than in the transition portion (28) so that a fiber bead forms of the fabric fibers of the load portion (26), which fiber bead is adjacent to the mounting hole (24) in the load direction (B), if bearing stress acts upon the mounting hole (24) in the load direction (B).

To provide a multilayer composite for an airbag that has both scrub resistance and flexibility, the multilayer composite for an airbag includes a base fabric, and a multilayer film including an outer layer and an adhesive layer adhered to a surface of the base fabric in which a ratio Sdr1/Sdr2 is from 0.986 to 1.1, where Sdr1 is an interface deployment area ratio of a multilayer film side surface of the multilayer composite for an airbag and Sdr2 is an interface deployment area ratio of a base fabric side surface of the multilayer composite for an airbag.

A vehicle includes a bulkhead elongated along an axis. The vehicle includes a base supported by the bulkhead and inflatable from a stowed position away from the bulkhead to a deployed position. The vehicle includes an airbag supported by the base and inflatable away from the bulkhead and the base to an inflated position, the airbag in the inflated position having a main portion and extensions extending away from the main portion along a vehicle-longitudinal axis, the extensions being spaced from each other along the axis.