B - Operations – Transporting – 60 – R
Patent
B - Operations, Transporting
60
R
B60R 21/16 (2006.01)
Patent
CA 2120262
The air bag of the present invention having an excellent burst strength is formed from substantially circular bottom and top cloths each consisting of a woven fabric, the bottom cloth is reinforced with an apron formed from a woven fabric, arranged around a hole for connecting an inflatar to the air bag and seam-joined to the bottom cloth, the apron has an outermost circumferential seam line in a quadrilateral form such as a substantially regular square, rhombic or rectangular form, preferably a regular square form, having the same center point as that of the inflator-connecting hole, and the outermost circumferential quadrilateral seam line satisfies the requirements (1) and (2): (1) in an imaginary circle having a diameter Dw and drawn around the same center as that at the inflator-connecting hole on the apron in such a manner that at least one pair of vertexes of the outermost quadrilateral seam line, spaced at a largest diagonal distance from each other is inscribed in the imaginary circle, a ratio of each of straight line distance Da and Db between one of the inscribed vertexes and each of two vertexes adjacent to the inscribed vertex to the diameter Dw is 0.6/1 to 0.9/1, and (2) a ratio of each of Da and Db to a diameter De of the circular bottom cloth is 0.5/1 or less.
Nakagawa Hideo
Nishimura Kunio
Takahashi Nobuo
Mcfadden Fincham
Teijin Limited
LandOfFree
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