Air bag

Details Air bag Air bag

1996-05-10

1998-02-24

Nerbun, Peter

Sewing

Method of sewing

On specified product

2807431, D05B 1300, B60R 2116

Patent

active

057202346

ABSTRACT:
The present invention provides a method of making an air bag comprising joining pieces of fabric together by stitching in substantially straight lines so as to facilitate automated machine stitching of the pieces. Preferable a generally rectangular piece is stitched to four triangular pieces. Preferably there are two large triangular and two small triangular pieces and each are irregular triangles with three different sides though the large and small triangular pieces may have one side the same length as another side. The total sum of the lengths of the other four sides should equal the length of the long side of the rectangle. Such pieces are joined by attaching the long sides of the triangular pieces to end regions of the long sides of the rectangular piece, folding the resultant shape, joining respective adjoining second sides of the triangular pieces, displacing the apexes of the joined pieces so that the third sides of the respective triangles form a straight line with the long sides of the rectangle, and joining the third sides of the respective triangles to unjoined parts of the long sides of the rectangle.

REFERENCES:
patent: 3970328 (1976-07-01), Wallsten
patent: 4006918 (1977-02-01), MacFarland
patent: 4988118 (1991-01-01), Good et al.
patent: 4989525 (1991-02-01), Portilla
patent: 5310216 (1994-05-01), Wehner et al.
patent: 5316337 (1994-05-01), Yamaji et al.
patent: 5482317 (1996-01-01), Nelsen et al.
patent: 5520414 (1996-05-01), Bishop

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