Stitch patterns for restraint-mounted airbags and associated systems and methods
First Claim
Patent Images
1. A personal restraint system for use in a vehicle, the restraint system comprising:
- a web configured to extend around a portion of an occupant seated in the vehicle;
an airbag;
a gas tube configured to deliver gas to the airbag; and
a fastening system attaching the airbag to the web, wherein the fastening system includes a plurality of curved rows of stitches extending through the airbag and the web, and wherein at least one individual stitch passes through the airbag, the web and the gas tube.
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Abstract
Stitch patterns for inflatable personal restraint systems and associated systems and methods. A stitch pattern between a web of a restraint and an airbag mounted to the restraint has a continuous, or curvilinear pattern to reduce stress concentrations. The stitch pattern can be applied to the web, the airbag, and a gas tube in a single stitching procedure.
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Citations
23 Claims
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1. A personal restraint system for use in a vehicle, the restraint system comprising:
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a web configured to extend around a portion of an occupant seated in the vehicle; an airbag; a gas tube configured to deliver gas to the airbag; and a fastening system attaching the airbag to the web, wherein the fastening system includes a plurality of curved rows of stitches extending through the airbag and the web, and wherein at least one individual stitch passes through the airbag, the web and the gas tube. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A personal restraint system for use in a vehicle, the restraint system comprising:
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a web configured to extend around a portion of an occupant seated in the vehicle; an airbag; and a fastening system attaching the airbag to the web, wherein the fastening system includes a plurality of curved rows of stitches extending through the airbag and the web, wherein the curved rows of stitches have an elliptical shape having two foci, and wherein the curved rows of stitches further comprise individual circular stitches at least approximately centered on the individual foci.
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11. A method of constructing a vehicle restraint having an airbag, the method comprising:
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positioning a gas delivery tube within the airbag, the gas delivery tube having at least one gas delivery hole positioned within the airbag; aligning a web of the vehicle restraint with the airbag and the gas delivery tube; and stitching thread through the web, the airbag, and the gas delivery tube in a plurality of curvilinear rows of stitches, wherein at least one individual stitch passes through the web, the airbag and the gas delivery tube.
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12. A method of constructing a vehicle restraint having an airbag, the method comprising:
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positioning a gas delivery tube within the airbag, the gas delivery tube having at least one gas delivery hole positioned within the airbag; aligning a web of the vehicle restraint with the airbag and the gas delivery tube; and stitching thread through the web, the airbag, and the gas delivery tube in a plurality of curvilinear rows of stitches, wherein stitching thread through the web, the airbag, and the gas delivery tube comprises stitching a concentric spiral-shaped row of stitches through the web, the airbag, and the gas delivery tube in a single stitch procedure.
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13. A method of constructing a vehicle restraint having an airbag, the method comprising:
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positioning a gas delivery tube within the airbag, the gas delivery tube having at least one gas delivery hole positioned within the airbag; aligning a web of the vehicle restraint with the airbag and the gas delivery tube; and stitching thread through the web, the airbag, and the gas delivery tube in a plurality of curvilinear rows of stitches, wherein stitching thread through the web, the airbag, and the gas delivery tube comprises stitching a plurality of discrete, concentric, oval-shaped rows of stitches through at least the web and the airbag in a single stitch procedure.
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14. A method of constructing a vehicle restraint having an airbag, the method comprising:
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positioning a gas delivery tube within the airbag, the gas delivery tube having at least one gas delivery hole positioned within the airbag; aligning a web of the vehicle restraint with the airbag and the gas delivery tube; and stitching thread through the web, the airbag, and the gas delivery tube in a plurality of curvilinear rows of stitches, wherein stitching thread through the web and the airbag comprises stitching a plurality of curvilinear rows of stitches comprising concentric, oval-shaped rows of stitches, and wherein stitching thread through the gas delivery tube comprises stitching thread in a discrete circular pattern of stitches through the web, the airbag, and the gas delivery tube, and further wherein the circular pattern of stitches is positioned within the concentric, oval-shaped stitches.
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15. A method of constructing a vehicle restraint having an airbag, the method comprising:
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positioning a gas delivery tube within the airbag, the gas delivery tube having at least one gas delivery hole positioned within the airbag; aligning a web of the vehicle restraint with the airbag and the gas delivery tube; fixing the web, the airbag, and the gas delivery tube in a jig; and stitching thread through the web, the airbag, and the gas delivery tube in a plurality of curvilinear rows of stitches.
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16. A vehicle restraint, comprising:
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a web configured to restrain a passenger in the vehicle; an airbag stitched to the web with a plurality of first individual stitches forming a first curvilinear pattern, wherein the first individual stitches comprise generally straight stitches, and further wherein an angle between any two consecutive individual stitches is less than about 10°
; anda gas delivery tube stitched to the airbag and to the web with a plurality of second individual stitches forming a second curvilinear pattern, wherein the gas delivery tube comprises a gas exit port positioned within the airbag, and wherein at least one individual stitch passes through the web, the airbag and the gas delivery tube. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
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Specification