Airbag apparatus and airbag folding method
First Claim
1. An airbag apparatus comprising a gas generator for generating gas and an airbag which is unfolded and inflated by the gas when the gas generator is operated, the airbag including an insertion opening through which the gas generator is inserted into the airbag, and the gas generator including a portion projecting from the airbag to the exterior through the insertion opening, with the insertion opening being sealed by said portion.
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Accused Products
Abstract
An airbag apparatus according to the present invention includes a gas generator and an airbag. The airbag includes a panel sheet and a recess defined inwardly with respect to the airbag. The airbag is formed in a bag-like shape by folding the panel sheet in two and sewing the circumference of the panel sheet. The panel sheet has a first folding line and an inward folding portion including a line extending from the first folding line and arranged in a circumferential portion of the panel sheet. The inward folding portion includes a second folding line by which the inward folding portion is defined, a third folding line extending along the line extending from the first folding line, and an insertion opening through which the gas generator is inserted into the airbag. The recess is provided by folding the inward folding portion along the second folding line inwardly with respect to the airbag, re-folding the airbag in two along the third folding line, and sewing the circumference of the inward folding portion together with the circumference of the panel sheet.
46 Citations
18 Claims
- 1. An airbag apparatus comprising a gas generator for generating gas and an airbag which is unfolded and inflated by the gas when the gas generator is operated, the airbag including an insertion opening through which the gas generator is inserted into the airbag, and the gas generator including a portion projecting from the airbag to the exterior through the insertion opening, with the insertion opening being sealed by said portion.
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12. A method of folding an airbag for an airbag apparatus including an inflator for generating gas that unfolds and inflates the airbag and a retainer for receiving the inflator, the airbag apparatus being fixed to an accommodating portion provided in a vehicle passenger compartment through the retainer, the method comprising:
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preparing the airbag in a flattened form and providing an insertion opening through which the retainer is passed;
setting at least one contact point by passing the retainer through the insertion opening of the airbag in such a manner that a portion of the retainer projects from the insertion opening and that the retainer is held in contact with an opening end of the insertion opening;
setting at least one folding line starting from the contact point and folding the airbag along the folding line; and
folding the airbag in a folded state from a distal end of the airbag toward the retainer. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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Specification