Global Safety Textiles Gmbh

Daniel Albiez

Michael Becker

A one-piece woven pressure-responsive air outlet, for use as a vent, for application to airbag discharge openings, includes a lower fabric layer, a middle fabric layer and an upper fabric layer. The lower fabric layer includes warp and weft threads and an inflow region in which the warp and weft threads float. The middle fabric layer includes warp and weft threads and a flow-through region in which the warp and weft threads float. The lower and middle fabric layers include a first chamber and a second chamber downstream of the first chamber in a flow direction. At least one of the chambers is sealed with a thread breakage zone, in which between the fabric layers, selected (warp) threads of one fabric layer are merely tacked to selected (weft) threads of the other fabric layer and are capable of breaking or rupturing at a predefined internal pressure in the chamber.

One-piece woven (OPW) pressure-responsive air outlet, in particular for application to airbag discharge openings, as well as an airbag with such an air outlet sewn thereto

The invention relates to an OPW (one piece woven) airbag comprising warp threads and weft threads which are woven into at least three woven fabric layers, a lower fabric layer (UG), an upper fabric layer (OG), and a central fabric layer (MG) arranged therebetween. The warp threads and weft threads of the central fabric layer (MG) protrude out of the central fabric layer (MG) and completely float between the lower fabric layer (UG) and the upper fabric layer (OG) in a first sub-region (ETB) of the OPW airbag and are integrated into the lower fabric layer (UG) or into the upper fabric layer (OG) in a second sub-region (ZTB) of the OPW airbag.

OPW airbag

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.

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.

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.

One-piece woven airbag

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

Growing community of inventors

Murg, Germany

Daniel Albiez