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.
Claims20
A method for manufacturing a one-piece woven (OPW) air bag, comprising:
- providing yarns;
- warping the yarns on at least one beam of a loom;
- 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 overlaying one another to form nonwoven alignment elements in at least one of the single layer portions;
- cutting the air bag structure to define the OPW air bag;
- aligning the alignment elements with alignment elements on a panel;
- and
- sewing the air bag structure to the panel with the alignment elements aligned with one another.
An OPW air bag comprising:
- a fabric structure comprising yarns woven into two layer portions defining an inflatable volume and single layer portions forming seams delimiting the inflatable volume, a plurality of the yarns overlaying one another to form nonwoven alignment elements in at least one of the single layer portions;
- and
- a panel including a plurality of the yarns overlaying one another to form nonwoven alignment elements, the alignment elements on the fabric structure and the panel being aligned with one another for helping to connect the air bag structure to the panel.
Dependencies are inferred from the claim text.