US Patent No: 4,313,473

Number of patents in Portfolio can not be more than 2000

Process and thread inserter for the manufacture of belting with tubular edge portions




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The belting has a single layer woven central portion (24) and two tubular edge portions (21, 22) and is made on a needle belt weaving loom provided with a knitting needle (37). The belting serves preferably for safety belts in motor vehicles. One tubular edge portion (22) is closed by a row of stitching (28') whereby the row of stitching does not lie at the outer edge of the tubular edge portion (22) but should disappear into the fabric at the edge of the central portion (24). By means of the invention the rate of production should be increased, which results from manufacture with two simultaneously moving weft thread insertion needles (30, 34) which simultaneously at each pick insert two weft threads (31, 35). To anchor one weft thread at the outer edges of the edge parts a common shed for both weft thread insertion needles is formed at least on the insertion side by the two outer edge warp threads (1a, 2a). For weaving the edge parts (21', 22') between the central portion (24) and the two outer edge warp threads (1a, 2a) an upper shed (32a) and a lower shed (32b) are formed, of which one shed accepts the first weft thread insertion needle (34) which forms the edge fabric and the other the second weft thread insertion needle (30) of which the weft thread (31) binds only with at least one of the two outer edge warp threads (1a, 2a). A loop (35', 51') is drawn by the knitting needle (37) outside the edge part (22') through a loop (31', 35') of at least one of the weft threads (31, 35) to form a stitch (28, 65). The row of stitching is formed either from one weft thread (35) or from a catch thread (51). In the latter case a thread inserter (53) serves to feed simultaneously the catch thread (51) and a barrier thread (41). The two weft threads (31, 35) are positively fed and the length fed of the one weft thread (35) is greater by at least the length of the two outer edge parts (21', 22') than the length fed of the other weft thread (31).

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Inventor Name Address # of filed Patents Total Citations
Reiter, Erich Mutlangen, DE 5 32

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Patent Info (Count) # Cites Year
Other [Check patent profile for assignment information] (2)
* 7,743,794 Seat belt webbing, method and narrow fabric needle loom for production of same 2 2007
* 8,066,034 Seat belt webbing, method and narrow fabric needle loom for production of same 2 2010
* 7,380,573 Method of producing on needle weaving looms a woven ribbon with the same edges in terms of weaving 3 2005
* 2006/0117,807 Method of producing on needle weaving looms a woven ribbon with the same edges in terms of weaving 0 2005
* 5,183,703 Belt strap for safety belts 0 1990
7,780,194 Method for producing an air bag 1 2005
9,085,834 Airbag and method for manufacturing a fabric for an airbag 0 2006
8,763,649 Seam construction for a one piece woven airbag fabric 0 2007
* 2006/0005,913 Method of producing a woven webbing 7 2005
6,199,597 Seat belt webbing double faced with ribs 11 1998
* 6,112,775 Weft yarn selection mechanism and methods for weaving seat belt webbing 10 1999
LaGran Canada, Inc. (1)
* 4,981,161 Seat belt webbing having multifilament and monofilament yarns 11 1989
* Cited By Examiner