One-piece woven occupant restraint system
AssigneeZf Passive Safety Systems US Inc.
InventorsDylan Moran, Bruce Hill
Life of this patent
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Abstract
A method for manufacturing a one-piece woven (OPW) air bag includes method for manufacturing an OPW airbag. The method includes providing yarns, warping the yarns on at least one beam of a loom, and simultaneously weaving yarns into a fabric air bag structure having two layer portions defining an inflatable volume and single layer portions forming seams delimiting the inflatable volume. A plurality of the yarns overlay one another to form nonwoven alignment elements in at least one of the single layer portions. The air bag structure is cut to define the OPW air bag. The alignment elements are aligned with alignment elements on a panel. The air bag structure is sewn to the panel with the alignment elements aligned with one another.
Claims10
An air bag comprising:
- a one-piece woven (OPW) fabric structure comprising yarns woven simultaneously to form two separate woven fabric single layer portions that define an inflatable volume of the air bag and single layer portions forming seams delimiting the inflatable volume, a plurality of the yarns in at least one area of at least one of the single layer portions being nonwoven and left overlaying one another to form nonwoven alignment elements in the at least one single layer portion;
- and
- a woven panel comprising woven yarns, wherein a plurality of the yarns in at least one area of the panel are nonwoven and left overlaying one another to form nonwoven alignment elements in the panel, the alignment elements in the OPW fabric structure and the alignment elements in the panel being configured to receive a locating member that aligns the OPW fabric structure and the panel to so that the panel can be connected to the OPW fabric structure.
Dependencies are inferred from the claim text.