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,wherein the airbag includes an insertion opening through which the gas generator is inserted into the airbag, a panel sheet and a recess defined inwardly with respect to the airbag, the airbag formed by folding the panel sheet in two and sewing the circumference of the panel sheet,wherein the panel sheet has a first folding line for folding the panel sheet in two and an inward folding portion including a line extending from the first folding line and arranged in a circumferential portion of the panel sheet,wherein the inward folding portion has a second folding line by which the inward folding portion is defined and a third folding line that extends along the line extending from the first folding line,wherein the recess is provided by folding the inward folding portion alone the second folding line inwardly with respect to the airbag, folding the inward folding portion in two along the third folding line, and sewing the circumference of the inward folding portion together with the circumference of the panel sheet, awherein the insertion opening is arranged in and sealed by the inward folding portion,wherein the gas generator includes a portion projecting from the airbag to the exterior through the insertion opening, andwherein the insertion opening is sealed by the inward folding portion and the projecting portion of the gas generator.
1 Assignment
0 Petitions
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.
42 Citations
17 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, wherein the airbag includes an insertion opening through which the gas generator is inserted into the airbag, a panel sheet and a recess defined inwardly with respect to the airbag, the airbag formed by folding the panel sheet in two and sewing the circumference of the panel sheet, wherein the panel sheet has a first folding line for folding the panel sheet in two and an inward folding portion including a line extending from the first folding line and arranged in a circumferential portion of the panel sheet, wherein the inward folding portion has a second folding line by which the inward folding portion is defined and a third folding line that extends along the line extending from the first folding line, wherein the recess is provided by folding the inward folding portion alone the second folding line inwardly with respect to the airbag, folding the inward folding portion in two along the third folding line, and sewing the circumference of the inward folding portion together with the circumference of the panel sheet, a wherein the insertion opening is arranged in and sealed by the inward folding portion, wherein the gas generator includes a portion projecting from the airbag to the exterior through the insertion opening, and wherein the insertion opening is sealed by the inward folding portion and the projecting portion of the gas generator. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. 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, wherein the apparatus is used by being fixed to an accommodating portion provided in a passenger compartment of a vehicle, wherein the gas generator includes an inflator for generating the gas and a retainer fixed to the accommodating portion for receiving the inflator, wherein the airbag has an insertion opening defined in a proximal end of the airbag through which the retainer is passed and a contact point at which one of the retainer and the inflator is held in contact with the circumference of an opening end of the insertion opening, and wherein the retainer and inflator are arranged in the proximal end of the airbag with a portion of one of the retainer and inflator projecting from the airbag to the exterior through the insertion opening, and wherein the insertion opening is sealed by the projecting portion of one of the retainer and inflator and by folding the air bag along a folding line starting from the contact point and re-folding the airbag from the distal end of the airbag to the proximal end. - View Dependent Claims (8, 9, 10)
-
-
11. 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:
-
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 (12, 13, 14, 15, 16, 17)
-
Specification