Side airbag system and method for manufacturing the same
AssigneeDelphi Automotive Systems Sungwoo Corporation
InventorsMyun-reun Jang, Hong-bae Choi, hyun-joong Lee
Life of this patent
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Abstract
Disclosed are a side airbag system, and manufacturing and folding methods of the side airbag system, by which a passenger's head and thorax can be safely protected, and manufacturing cost and labor can be reduced. The side airbag system has an airbag cushion and an inflator assembly. The airbag cushion has a first panel, a pair of second panels, and pairs of reinforcement panels. The airbag cushion has an upper chamber and a lower chamber partitioned by a tether. The inflator assembly has an inflator, a mounting ring, and a mounting bracket. The tether constantly maintains a pressure in and a shape of the airbag cushion so that a gas injected by the inflator is filled in the lower chamber prior to the upper chamber.
Claims10
A side airbag system fixed to a frame comprising:
- an airbag cushion including:
- a first panel having a tether at a middle portion of the first panel, wherein the tether includes a plurality of vents;
- a pair of second panels seamed with the first panel along first scams at the middle portion of the first panel;
- reinforcement panels stacked directly below each of the second panels and seamed with each of the second panels along second scams of the second panels;
- a cover for surrounding the airbag cushion having:
- a “V” letter shape;
- two arms, each of the two arms having a hooking hole;
- and
- an end portion assembled with cracks formed at a seamed portion near a third seam,
- wherein the first panel, the pair of second panels and the reinforcement panels together with the cover are stitched along the third seam formed at rims of the panels, thereby forming an upper chamber and a lower chamber partitioned by the tether;
- and
- an inflator assembly, fixedly assembled with the hooking hole of each of the arms of the cover, the assembly comprising:
- an inflator;
- a mouting ring including (a) a lower chamber;
- (b) a winding metal strip of predetermined width having overlapping ends for support;
- and (c) an assembling means for attaching the lower chamber to the frame;
- and
- a mounting bracket having (a) two ends, (b) a retainer ring at one end, and (c) a retainer plate at the other end, wherein the inflator is securely mounted on the mounting bracket by the retainer ring and the retainer plate.
A method of manufacturing an airbag cushion for a side airbag system, the method comprising:
- stacking a first panel having a tether at the center of the first panel, a pair of second panels, and a pair of reinforcement panels in sequence so that all the side ends of the panels coincide;
- symmetrically arranging the pair of second panels with the pair of reinforcement panels;
- stitching the first panel to the pair of second panels along a first seam at a midde portion of the first panel;
- stitching the pair of second panels and the pair of reinforcement panels along a second seam on the pair of second panels;
- folding the first panel upward;
- folding the pair of second panels and the pair of reinforcement panels downward;
- and
- stitching the first panel, the pair of second panels, and the pair of reinforcement panels along a third seam at a periphery of the side airbag system, following the folding the first panel upward and the folding the pair of second panels and the pair of reinforcement panels downward.
Dependencies are inferred from the claim text.